Wet surface cleaning equipment and voltage liquid level detection method of wet surface cleaning equipment
阅读说明：本技术 一种湿式表面清洁设备及湿式表面清洁设备的电压液位检测方法 (Wet surface cleaning equipment and voltage liquid level detection method of wet surface cleaning equipment ) 是由 陈俊良 曹传源 唐成 段飞 钟亮 于 2021-10-19 设计创作，主要内容包括：本公开提供一种湿式表面清洁设备,其包括：底座；吸力源；提供在底座上的吸嘴组件；流体输送和回收系统和液位检测装置；所述液位检测装置电压检测电路,包括输入端、输出端和电压检测端,至少两个检测件与所述电压检测电路连接,设置于所述供液罐和/或回收罐中,所述输入端和输出端间断切换高低电平,所述电压检测端分别检测电压值V1和V2,通过V1与V2的比值或差值S判断液位信息。通过输入输出的切换高低电平电路的设计,避免了出现电极片电解水现象。本公开还提供湿式表面清洁设备的电压液位检测方法。(The present disclosure provides a wet surface cleaning apparatus comprising: a base; a suction source; a nozzle assembly provided on the base; a fluid delivery and recovery system and a liquid level detection device; liquid level detection device voltage detection circuit, including input, output and voltage detection end, at least two detection pieces with voltage detection circuit connects, set up in feed liquid jar and/or the recovery tank, input and output are interrupted to switch over the high-low level, voltage detection end detects voltage value V1 and V2 respectively, judges liquid level information through the ratio or the difference S of V1 and V2. Through the design of switching high and low level circuits of input and output, the phenomenon of water electrolysis of electrode plates is avoided. The present disclosure also provides a voltage level detection method of a wet surface cleaning apparatus.)
1. A wet surface cleaning apparatus comprising
A base adapted to contact a surface of a surrounding environment;
a suction source;
a suction nozzle assembly provided on the base and defining a suction nozzle in fluid communication with the suction source;
a fluid delivery and recovery system comprising
A feed tank adapted to contain a feed liquid;
a fluid dispenser in fluid communication with the fluid feed tank; and
a recovery tank in fluid communication with the suction nozzle assembly;
a liquid level detection device for detecting the liquid level of at least one of the feed tank or the recovery tank: comprises that
The voltage detection circuit comprises an input end, an output end and a voltage detection end; and
at least one detection member; the detection piece is connected with the voltage detection circuit, and is at least partially arranged in the liquid supply tank and/or the recovery tank;
the liquid level detection device comprises an input end, an output end and a voltage detection end, wherein the input end and the output end are switched to high and low levels discontinuously, the voltage detection end is used for detecting voltage values V1 and V2 respectively, and the liquid level detection device is used for judging liquid level information through the ratio or difference S of V1 and V2.
2. The wet surface cleaning apparatus of claim 1,
the liquid level detection device is arranged inside or outside the liquid supply tank or the recovery tank;
optionally, the liquid level detection device is arranged inside the cleaning device and is electrically connected with the detection pieces inside the liquid supply tank and the recovery tank through built-in wires;
optionally, the liquid level detection device is disposed on a component matched with the liquid supply tank or the recovery tank, so that when the liquid supply tank or the recovery tank is installed in place, the detection piece is located in the liquid supply tank or the recovery tank.
3. A wet surface cleaning apparatus as claimed in claim 2, wherein the detecting member comprises a first detecting member and a second detecting member;
one end of each of the first detection piece and the second detection piece is positioned in the liquid supply tank or the recovery tank, and the other end of each of the first detection piece and the second detection piece is connected between the input end and the output end;
the voltage detection end is connected between the input end and the output end;
the first and second detection members are configured to be connected or disconnected according to both liquid level levels.
4. The wet surface cleaning apparatus of claim 1, further comprising a controller communicatively coupled to the charge and discharge detection circuit, the controller being disposed within the surface wet cleaning apparatus and/or within a base station.
5. The wet surface cleaning apparatus of claim 4, wherein the liquid level detection device is configured to determine the operational state of the fluid delivery system based on the detected liquid level.
6. The wet surface cleaning apparatus of claim 1,
the first detection pieces are arranged at different height positions of the supply tank and/or the recovery tank respectively, and the second detection pieces are arranged at the bottom of the supply tank and/or the recovery tank;
optionally, the second detecting members are plural and respectively disposed at different height positions of the supply tank and/or the recovery tank, and the first detecting member is disposed at the bottom of the supply tank and/or the recovery tank.
7. A wet surface cleaning apparatus according to claim 4, wherein the detection member has a first contact and the charging and discharging detection circuit has a second contact, the detection member being electrically connectable to the second contact via the first contact.
8. A wet surface cleaning apparatus according to claim 3, wherein the distance between the first and second sensing members is from 80mm to 100 mm.
9. A wet surface cleaning apparatus according to claim 4, wherein the base station is provided with a conduit communicating with the cleaning apparatus feed tank and/or recovery tank to facilitate replenishment of cleaning liquid to the feed tank or withdrawal of dirty liquid from the recovery tank via the conduit.
10. A method of voltage level detection in a wet surface cleaning apparatus according to any one of claims 1 to 9, comprising
1) Acquiring voltage values V1 and V2 of a voltage detection end;
2) calculating the ratio or difference S of V1 and V2 according to the obtained V1 and V2;
3) judging whether the liquid level reaches a threshold value according to the change of the S value;
optionally, the liquid level information is determined according to whether the S value is equal to a preset value.
Technical Field
The disclosure relates to the field of surface cleaning equipment, in particular to wet-type surface cleaning equipment and a voltage liquid level detection method of the wet-type surface cleaning equipment.
Background
Wet surface cleaning apparatuses are suitable for cleaning hard floor surfaces, such as ceramic tiles, hardwood floors, soft carpeted surfaces, and the like.
When the wet type surface cleaning equipment cleans the surface to be cleaned, the cleaning liquid is firstly conveyed to the cleaning module and is applied to the surface to be cleaned through the cleaning module, and when the cleaning module and the surface to be cleaned generate relative motion, the surface to be cleaned is cleaned.
Because the wet surface cleaning equipment is provided with the liquid supply tank for containing the cleaning liquid and the recovery tank communicated with the suction nozzle, the liquid level in the tank needs to be judged so as to prevent the situations of water shortage or sewage full, and the liquid level detection of the cleaning equipment on the market is basically photoelectric detection, capacitance detection and pole piece detection. Wherein, both the photoelectric type and the capacitance type can generate false alarm phenomenon, and when pollutants are attached to the surface of the detection body, the false alarm probability can be greatly improved. The electrode plate can generate the phenomenon of electrode plate electrolytic water during the detection of the electrode plate, so that the grade plate is rusted, and the false alarm rate is increased.
Disclosure of Invention
In order to solve one of the above technical problems, the present disclosure provides a wet surface cleaning apparatus and a voltage level detection method of the wet surface cleaning apparatus.
According to one aspect of the present disclosure, there is provided a wet surface cleaning apparatus comprising:
a base adapted to contact a surface of a surrounding environment;
a suction source;
a suction nozzle assembly provided on the base and defining a suction nozzle in fluid communication with the suction source;
a fluid delivery and recovery system comprising
A feed tank adapted to contain a feed liquid;
a fluid dispenser in fluid communication with the fluid supply tank; and
a recovery tank in fluid communication with the suction nozzle assembly;
a liquid level detection device for performing liquid level detection on at least one of said supply tank or said recovery tank: comprises that
The voltage detection circuit comprises an input end, an output end and a voltage detection end; and
at least one detection member; the detection piece is connected with the voltage detection circuit, and is at least partially arranged in the liquid supply tank and/or the recovery tank;
the liquid level detection device comprises an input end, an output end and a voltage detection end, wherein the input end and the output end are switched to high and low levels discontinuously, the voltage detection end is used for detecting voltage values V1 and V2 respectively, and the liquid level detection device is used for judging liquid level information through the ratio or difference S of V1 and V2.
The discharge of the detection piece is reduced through the intermittent high-low level switching of input and output, the hydrolysis of the detection piece is avoided, and the liquid level information is judged simply and reliably through comparing the voltage.
According to a wet surface cleaning apparatus of at least one embodiment of the present disclosure, the liquid level detection device is disposed inside or outside the feed tank or the recovery tank;
optionally, the liquid level detection device is arranged inside the cleaning device and is electrically connected with the detection pieces inside the liquid supply tank and the recovery tank through built-in wires;
optionally, the liquid level detection device is disposed on a component matched with the liquid supply tank or the recovery tank, so that when the liquid supply tank or the recovery tank is installed in place, the detection piece is located in the liquid supply tank or the recovery tank.
The liquid level detection device is arranged close to the tank body, so that the design of a wire can be more directly connected with a detection piece, and even the detection piece can be fixedly arranged on the liquid level detection device. Meanwhile, in order to consider that a part is arranged in the limited volume of the cleaning equipment, the liquid level detection device can also be arranged at the position in the cleaning equipment and is electrically connected with the detection part through a built-in lead; in order to take into account connection failure of the detection device due to frequent disassembly and assembly of the supply tank or the recovery tank, the liquid level detection device may be mounted on a component that is fitted to the supply tank or the recovery tank.
According to a wet surface cleaning apparatus of at least one embodiment of the present disclosure, the detecting member includes a first detecting member and a second detecting member;
one end of each of the first detection piece and the second detection piece is positioned in the liquid supply tank or the recovery tank, and the other end of each of the first detection piece and the second detection piece is connected between the input end and the output end;
the voltage detection end is connected between the input end and the output end;
the first and second detection members are configured to be connected or disconnected according to both liquid level levels.
This openly will form the route or break off between the detection piece through liquid thereby influence the impedance of circuit, judge the liquid level condition through voltage ratio or difference, through the design of high-low level inverter circuit, avoided electrode slice brineelectrolysis phenomenon to appear.
A wet surface cleaning apparatus according to at least one embodiment of the present disclosure, further comprising a controller communicatively coupled to the charge and discharge detection circuitry, the controller being disposed within the surface wet cleaning apparatus and/or within a base station.
Control command operations (e.g., control of fluid delivery systems, alarm devices, display devices, etc.) are initiated based on the fluid level information.
According to a wet surface cleaning apparatus of at least one embodiment of the present disclosure, the liquid level detection device is configured to determine an operational state of the fluid transport system based on the detected liquid level.
Through the linkage of the detection device and the fluid conveying system, the control of the fluid conveying system can be automatically realized, and the detection device is more convenient and faster.
According to the wet type surface cleaning device of at least one embodiment of the present disclosure, the first detecting member is provided in plurality and is respectively disposed at different height positions of the supply tank and/or the recovery tank, and the second detecting member is disposed at the bottom of the supply tank and/or the recovery tank;
optionally, the second detecting members are plural and respectively disposed at different height positions of the supply tank and/or the recovery tank, and the first detecting member is disposed at the bottom of the supply tank and/or the recovery tank.
Through the design of a plurality of first detecting members or a plurality of second detecting members, the detection of different liquid level heights can be realized.
According to the wet type surface cleaning device of at least one embodiment of the present disclosure, the detection member further has a first contact, the charge and discharge detection circuit has a second contact, and the detection member is electrically connected to the second contact through the first contact.
The circuit electric connection of the detection piece and the liquid level detection device is realized through a contact point mode, so that the detection piece and the liquid level detection device can be conveniently separated into two independent component units, and the appearance volume of the cleaning equipment is conveniently and reasonably distributed to beautify or reduce.
According to a wet surface cleaning apparatus of at least one embodiment of the present disclosure, a distance between the first sensing member and the second sensing member is 80mm to 100 mm.
The resistance value after the first detection piece and the second detection piece are communicated is stabilized within a certain range by designing the distance between the first detection piece and the second detection piece, so that the situation that the voltage change value is too large or the change value is not obvious due to too small resistance value or too large resistance value is avoided.
According to a wet surface cleaning device of at least one embodiment of the present disclosure, a base station is provided with a pipe communicating with the cleaning device feed tank and/or recovery tank, so as to replenish the feed tank with cleaning liquid through the pipe or to draw dirty liquid from the recovery tank.
According to another aspect of the present disclosure, there is provided a liquid level detection method of a wet surface cleaning apparatus comprising the above wet surface cleaning apparatus, comprising
1) Acquiring voltage values V1 and V2 of a voltage detection end;
2) calculating the ratio or difference S of V1 and V2 according to the obtained V1 and V2;
3) judging whether the liquid level reaches a threshold value according to the change of the S value;
optionally, the liquid level information is determined according to whether the S value is equal to a preset value.
The liquid level detection of the present disclosure includes two situations, one being only two states, e.g., judgment of water full and water shortage, such as judgment of water shortage in a liquid supply tank, and judgment of water full in a recovery tank. The other is a plurality of liquid level states, and whether a certain liquid level is reached can be judged according to a preset value, such as the liquid level percentage, or the information of the liquid level height.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural view of a wet surface cleaning apparatus according to one embodiment of the present disclosure.
Fig. 2 is a schematic illustration of an isolated configuration of a wet surface cleaning apparatus according to one embodiment of the present disclosure.
FIG. 3 is a schematic circuit diagram of a liquid level detection device according to one embodiment of the present disclosure.
FIG. 4 is a circuit configuration diagram of a liquid level detection device according to one embodiment of the present disclosure.
FIG. 5 is a schematic view of a detection member arrangement of the liquid level detection apparatus according to one embodiment of the present disclosure.
Fig. 6 is a schematic structural view of a separation assembly of a sewage storage apparatus according to an embodiment of the present disclosure.
Fig. 7 is a schematic view of another angle of the separation assembly of the wastewater storage apparatus according to an embodiment of the present disclosure.
Fig. 8 is a schematic cross-sectional structural view of a separation assembly of a wastewater storage apparatus according to an embodiment of the present disclosure.
Fig. 9 is a schematic structural view of a sewage storage apparatus according to an embodiment of the present disclosure.
Fig. 10 is a schematic structural view of a recovery tank according to an embodiment of the present disclosure.
Fig. 11 is a schematic structural view of a suction device according to one embodiment of the present disclosure.
The reference numbers in the figures are in particular:
10 surface cleaning system
100 surface cleaning apparatus
110 cleaning part
120 clean liquid storage part
121 liquid conveying pipeline
122 water temperature detection device
123 liquid level detection device
124 clean water pump
130 recovery tank
131 recovery channel
132 Filter device
140 casing
150 water supply pipeline
151 water adding joint
160 charging plug
170 first control circuit
180 rechargeable battery
200 base station
210 cleaning liquid supply part
211 air vent
212 water quantity sensor
213 interface
220 base
230 base station water pump
240 water supply line
250 heating device
251 water temperature sensor
260 charging port
270 second control circuit
280 connecting interface
300 separation assembly
310 cover body
311 guide part
320 separating part
Into the bore 321
322 discharge hole
323 cylinder
324 cover part
3241 fastener
3242 blocking part
325 push button
3251 hook
326 first elastic part
340 support part
350 filter part
361 detection piece
370 card connector actuating portion
380 second elastic part
400 sewage storage device
411 case body
412 suction tube
420 sealing member
500 to suck the device.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., as in "side wall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
According to one embodiment of the present disclosure, a wet surface cleaning apparatus is provided, wherein the surface cleaning apparatus is capable of cleaning a surface to be cleaned, such as a floor, wherein the surface to be cleaned may be a hard surface or a soft surface. By means of which a surface to be cleaned can be mopped or the like.
Figure 1 shows a schematic view of an angled configuration of the wet surface cleaning apparatus. Fig. 2 is a schematic illustration of an isolated configuration of a wet surface cleaning apparatus according to one embodiment of the present disclosure. FIG. 3 is a schematic circuit diagram of a liquid level detection device according to one embodiment of the present disclosure.
As shown in fig. 1-3, the wet surface cleaning apparatus 100 may comprise a base adapted to be in contact with a surface of the surrounding environment;
a suction source;
a suction nozzle assembly provided on the base and defining a suction nozzle in fluid communication with the suction source;
a fluid delivery and recovery system comprising
A feed tank 120 adapted to contain a feed liquid;
a fluid dispenser in fluid communication with fluid feed tank 120; and
a recovery tank 130 in fluid communication with the nozzle assembly;
a liquid level detection device 123 for detecting the liquid level of at least one of the feed tank 120 or the recovery tank 130.
The liquid level detection device 123 comprises a voltage detection circuit and at least one detection piece; at least one detection member is provided in the supply tank 120 and/or the recovery tank 130; at least one detection piece is connected with the detection circuit; the input end and the output end of the detection circuit are discontinuously switched to high and low levels to realize liquid level detection.
Specifically, the voltage detection circuit further comprises a voltage detection terminal, wherein the voltage detection terminal respectively detects voltage values V1 and V2 by switching the high and low levels of the input terminal and the output terminal, and liquid level information is judged according to the ratio or difference S of V1 and V2.
The suction source in the present disclosure may be motor driven.
In the present disclosure, the surface cleaning system 10 may also include a base station 200. After surface cleaning apparatus 100 is docked to base station 200, surface cleaning apparatus 100 may be charged via base station 200, and cleaning fluid, rinsing fluid, or water may be provided to surface cleaning apparatus 100 or circulated with surface cleaning apparatus 100.
In the present disclosure, surface cleaning apparatus 100 may be an upright surface cleaning apparatus or a horizontal surface cleaning apparatus, may be an autonomous mobile surface cleaning apparatus or a handheld surface cleaning apparatus, may be a wired surface cleaning apparatus or a wireless surface cleaning apparatus. The type of surface cleaning apparatus is not limited in this disclosure, but will be illustrated in this disclosure by way of example as a cordless hand-held upright surface cleaning apparatus. While applicable to other types of surface cleaning apparatuses, those skilled in the art will appreciate that corresponding modifications can be made to the types of surface cleaning apparatuses specifically described in this disclosure and will not be described in detail herein.
Furthermore, the surface cleaning apparatus 100 may be used for cleaning floors or short-hair carpets, but also for cleaning other objects, such as glass, etc.
In the present disclosure, the surface cleaning apparatus 100 may include a cleaning portion 110 and a feed tank 120.
The cleaning part 110 may be bristles provided on an outer circumferential surface of the roll brush. And cleaning of the surface to be cleaned is achieved by the rolling of the bristles.
The liquid supply tank 120 may be in the form of a water tank for storing the cleaning liquid, and may transmit the cleaning liquid to the cleaning portion 110 or the vicinity of the cleaning portion 110, for example, the cleaning liquid stored in the liquid supply tank 120 may be sprayed to the cleaning portion 110 or the vicinity of the cleaning portion 110 through the cleaning liquid transmission line 121.
In the present disclosure, feed tank 120 can provide a cleaning portion 110 by adding water or a water/cleaner mixture to scrub tough soil on the floor.
Further, the liquid level detection device 123 and/or the water temperature detection device 122 may be provided inside or in the vicinity of the outside of the feed liquid tank 120.
The water temperature detection device 122 may be provided to the liquid delivery pipe 121. The liquid level detection means may detect the volume amount of the cleaning liquid stored in the feed tank 120, and may alert the user to fill the cleaning liquid in the case where the volume amount is less than a predetermined threshold value. The water temperature detecting means may be used to detect the temperature of the cleaning liquid stored in the liquid supply tank 120 so as to alert the user when the liquid temperature is less than a predetermined temperature.
The surface cleaning apparatus 100 may further include a fluid distribution device, which may include a cleaning nozzle, which may be disposed to or near the cleaning portion 110 and connected to the cleaning liquid delivery line 121, and a cleaning water pump 124, which may be disposed upstream of the cleaning nozzle and in fluid communication with the cleaning liquid delivery line 121. This may spray the cleaning liquid to the cleaning part 110 through the cleaning nozzle by the cleaning water pump 124.
According to further embodiments of the present disclosure, the surface cleaning apparatus 100 may further include a recovery tank 130, which recovery tank 130 may be in the form of a water tank and may be used to store recovered dirty water. After the cleaning liquid is sprayed to the cleaning part 110 and the dirt is washed by the cleaning liquid, the used cleaning liquid may be recovered to the recovery tank 130. The recovery of the cleaning liquid may be accomplished, for example, through the recovery passage 131.
In the present disclosure, the liquid level detection device 123 may be disposed inside or near the outside of the recovery tank 130.
The liquid level detection device 123 may be disposed inside the cleaning device 100, and electrically connected to the detection members inside the feed tank 120 and the recovery tank 130 through built-in wires.
In this disclosure, the liquid level detection device is disposed on a component that is fitted to the liquid supply tank or the recovery tank, so that the detection member is located in the liquid supply tank or the recovery tank after the liquid supply tank or the recovery tank is mounted in place.
Specifically, the used cleaning liquid and dirt may be recovered to the recovery tank 130 by the recovery system. The recovery system may include a suction power source and a suction nozzle. A suction power source, a suction nozzle, a recovery channel, wherein the suction nozzle may be disposed on or near the cleaning portion 110, optionally near the rear of the cleaning portion 110. Thus, when the liquid is recovered, the suction power source is operated, and the used cleaning liquid and dirt are sucked by the suction nozzle and transferred to the recovery tank 130 through the recovery passage.
The recovery tank 130 may include a bottom portion containing liquid and dirt and a top portion with a filter assembly 132 disposed at the top portion. Like this when the clean liquid and the dirt after using are drawn through the suction power supply, the circumstances that can appear mixing with gas, through set up this filter equipment 132 at the top, can filter the gas of inhaling through this filter equipment 132, the gas after the filtration is discharged to the atmosphere to realize gas-liquid separation effectively, liquid and dirt then remain in recovery tank 130.
In an alternative embodiment of the present disclosure, the housing 140 forms an accommodation space that accommodates the feed tank 120 and the recovery tank 130. The feed tank 120 may also be configured for a fixed mounting.
On the other hand, the base station 200 may include a cleaning liquid supply part 210 and a base 220. The cleaning liquid supply 210 may be in the form of a tank for storing cleaning liquid, and the stored cleaning liquid may be provided to the liquid supply tank 120 of the surface cleaning apparatus 100.
For example, the base station 200 may include a base station water pump 230 and a water supply line 240. When the surface cleaning apparatus 100 is mated with the base station 200, the water supply line 240 of the base station 200 is in fluid communication with the water supply line 150 of the surface cleaning apparatus 100, and a base station water pump 230 may be provided to the water supply line 240 to pump cleaning liquid from the cleaning liquid supply 210 to the liquid supply tank 120 of the surface cleaning apparatus 100. When the water supply line 240 of the base station 200 is in fluid communication with the water supply line 150 of the surface cleaning apparatus 100, communication may be provided via a connecting tube and corresponding connecting interface therebetween.
In addition, a heating device 250 may be further provided on the water supply line 240, wherein the heating device 250 may be used to heat the cleaning liquid supplied to the liquid supply tank 120 on the water supply line.
When surface cleaning apparatus 100 is mated with base station 200, base station 200 may also charge surface cleaning apparatus 100 via a charging device, e.g., base station 200 may be provided with charging port 260 and surface cleaning apparatus 100 may be provided with charging plug 160, by which surface cleaning apparatus 100 is charged. In addition, the surface cleaning apparatus 100 may communicate with the base station 200 via the charging port 260 and the charging plug 160, for example, to enable data transmission. Furthermore, both the charging function and the communication function may be controlled, such as by the second control circuit 270 provided with the base station 200 and the first control circuit 170 provided with the surface cleaning apparatus 100. The second control circuit 270 may be connected to the charging port 260, and the first control circuit 170 may be connected to the charging plug 160. Although it is described above that the base station 200 is provided with the charging port 260 and the surface cleaning apparatus 100 is provided with the charging plug 160, it is also possible to provide the charging port to the surface cleaning apparatus 100 and correspondingly provide the charging plug to the base station 200.
In addition, a rechargeable battery 180 may be provided in the surface cleaning apparatus 100, the rechargeable battery 180 being charged by a charging device.
In the present disclosure, the base station is provided with the above-described cleaning liquid supply part 210, and may supply heated water to the feed tank 120 of the surface cleaning apparatus by heating with the heating device 250, and the temperature of the water stored in the feed tank 120 may be a temperature suitable for cleaning stubborn dirt, and the temperature of the water stored in the feed tank 120 may be maintained.
After the surface cleaning apparatus 100 is returned to the base station 200, the water supply line 240 and the water supply line 150 are fluidly connected by the water supply connection interface, so that water in the cleaning liquid supply portion 210 can be supplied to the feed-water tank 120, and the supplied water can be heated by the heating device 250 to supply water at a predetermined temperature to the feed-water tank 120. In which each part of the base station 200 is connected to an external power source through a plug shown in the figure to supply power.
The cleaning liquid supply part 210 receives water from an external water source such as a tap water pipe and stores the water. The cleaning liquid supply part 210 communicates with a water supply line 240 through a joint 213, and pumps water by the action of a base station water pump 230. Among them, a vent hole 211 may be opened at the top of the cleaning liquid supply part 210 (e.g., in the form of a water tank) to discharge air inside thereof, and a water amount sensor 212 may be further provided to measure the amount of the cleaning liquid in the cleaning liquid supply part 210. For example, the user may be notified to add water when the amount of cleaning liquid is too small or automatically add water from an external water source, and the water addition may be stopped when the amount of cleaning liquid reaches a predetermined value during the water addition.
Specifically, the base station 200 is provided with a pipe communicating with the cleaning device recovery tank so as to draw the dirty liquid from the recovery tank 130 through the pipe.
In particular, a controller is also included, communicatively coupled to the charge and discharge detection circuitry, the controller being disposed within the surface wet cleaning apparatus and/or within a base station.
Control command operations (e.g., control of fluid delivery systems, alarm devices, display devices, etc.) are initiated based on the fluid level information.
To facilitate ease of control, intelligence, the liquid level detection device is configured to determine the operating state of the fluid delivery system based on the detected liquid level (e.g., if liquid is present in recovery tank 130 and an alert position is reached, the cleaning/pumping components (e.g., motor and liquid delivery system peristaltic pump) should be turned off to prevent liquid from entering the suction source, and if the supply tank 120 has been replenished with cleaning liquid to a threshold level, the supply source (e.g., motor and liquid delivery system peristaltic pump) should be turned off to prevent liquid from spilling).
To better alert the user, the liquid level detection device is configured to determine operation of the alert unit based on the detected liquid level (e.g., if feed tank 120 is out of liquid and reaches an alert position, the alert unit (e.g., an audible, light, audible, visual, voice alert module, message sending module, and/or vibration module) should be activated to alert the user to replenish the cleaning liquid, if the dirty liquid of recovery tank 130 has been discharged to a threshold level, the alert unit (e.g., audible, light, audible, voice alert module, message sending module, and/or vibration module) should be activated to already alert the user that subsequent cleaning may be performed).
In particular, the fluid delivery system and the reminder unit may work in conjunction. To better ensure the use of the user.
In the present disclosure, the base station 200 is in communication connection with the cleaning device 100, so that when the cleaning device 100 is docked with the base station 200, the liquid level information of the liquid supply tank 120 or the recovery tank 130 of the cleaning device is obtained to control the base station 200 to determine whether to supplement the cleaning liquid for the liquid supply tank 120, stop supplementing, extract the dirty liquid from the recovery tank 130, and stop extracting.
The water pumped by the base station water pump 230 passes through the water supply line 240 and is heated to a predetermined temperature by the heating device 250. In addition, a water temperature sensor 251 may be disposed downstream of the heating device 250, the temperature of the water heated by the heating device 250 may be detected by the water temperature sensor 251, and the heating device 250 may be feedback-controlled according to the detection value of the water temperature sensor 251, so as to adjust the heating amount of the heating device 250, thereby achieving the purpose of adjusting the water temperature.
The water supply line 240 is connected to the water supply line 150 by a connection interface 280. The water supply line 150 may communicate with the connection interface 280 through the water adding joint 151, and water in the water supply line 240 may flow into the water supply line 150.
FIG. 4 is a circuit configuration diagram of a liquid level detection device according to one embodiment of the present disclosure.
FIG. 5 is a schematic view of a detection member arrangement of the liquid level detection apparatus according to one embodiment of the present disclosure.
As shown in fig. 4 and 5, the liquid level detection device 123 of the present disclosure includes a first detection element and a second detection element, one end of which is located in the liquid supply tank or the recovery tank, and the other end of which is connected between the input end and the output end;
the voltage detection end is connected between the input end and the output end;
the first and second detection members are configured to be connected or disconnected according to both liquid level levels.
Specifically, the input end is an IO _1 port, the output end is an IO _2 port, and the pressure detection end is an AD _ IO detection pin;
a resistor R1, wherein a first end of the resistor R1 is connected with the IO _1 port, and a second end of the resistor R1 is connected with the AD _ IO detection pin;
a resistor R2, a first end of the resistor R2 being connected to a second end of the resistor R1; a second end of the resistor R2 is connected with the IO _2 interface;
a first sensing piece (probe1) having a first end disposed in at least one of the supply tank or the recovery tank and a second end connected to a first end of the resistor R1;
a second sensing member (probe2) having a first end disposed in at least one of the supply tank or the recovery tank and a second end connected to a second end of the resistor R1;
the first detection member or the second detection member is disconnected when the first detection member or the second detection member is not immersed in water; when the first detection piece and the second detection piece are immersed in water at the same time, the first detection piece and the second detection piece are communicated through the water;
when the IO _1 port is at a high level and the IO _2 port is at a low level, the voltage value of the AD _ IO detection pin is V1; when the IO _1 port is at a low level and the IO _2 port is at a high level, the voltage value of the AD _ IO detection pin is V2;
the detection device obtains the ratio or difference S of V1 and V2, and liquid level information is judged according to the value of S.
This open voltage ratio or the difference that detects AD _ IO foot judge the liquid level condition, through IO mouth inverter circuit's design, avoided electrode slice electrolytic water phenomenon to appear.
It can be understood that the functions, various complex operations and designations of the present application can be realized by using common single-chip microcomputers and integrated circuits with voltage detection functions, and the specific principles, structures and model specifications are not limited herein.
As shown in fig. 5, in the present disclosure, the first detecting member is provided in plurality and is respectively disposed at different height positions of the supply tank 120 and/or the recovery tank 130, and the second detecting member is disposed at the bottom of the supply tank 120 and/or the recovery tank 130;
optionally, the second detecting member is a plurality of second detecting members respectively disposed at different height positions of the supply tank 120 and/or the recovery tank 130, and the first detecting member is disposed at the bottom of the supply tank 120 and/or the recovery tank 130.
Through the design of a plurality of first detecting members or a plurality of second detecting members, the detection of different liquid level heights can be realized.
Although fig. 5 shows the detecting member being disposed in a vertical direction, the detecting member may be disposed in a horizontal direction, and may be fixed to the supply tank 120 or the recovery tank 130, or may be fixed to a structure that is engaged with the supply tank 120 or the recovery tank 130. Specifically, the detection member is a conductive metal material.
In the present disclosure, the detecting member is electrically connected to the liquid level detecting device by means of a connecting contact, and the connecting line passes through the inner housing of the cleaning device, that is, when the liquid supply tank 120 or the recovery tank 130; or the contact of the detecting member is communicated with the circuit after the fitting structure of the supply tank 120 or the recovery tank 130 is mounted in place. In particular, the connection contact is of a waterproof design. Preferably, one of the contacts is externally wrapped with a flexible waterproof material, and when the contacts are contacted, the flexible waterproof material wraps the two contacts.
Of course, in order to simplify such a structure, the detection member may be directly fixed to the cleaning device, and the detection member is located in the supply tank 120 or the recovery tank 130 when the supply tank 120 or the recovery tank 130 is mounted in place.
In the disclosure, in order to make the change of the ratio or difference between V1 and V2 more stable and the fluctuation is small, especially the fluctuation of the ratio between V1 and V2 is small, thereby avoiding affecting the liquid level detection judgment; the circuit also further comprises a resistor R3, wherein a first end of the resistor R3 is connected with the IO _1 port, and a second end of the resistor R3 is connected with a first end of the resistor R1; and the second end of the first detection member is connected with the second end of the resistor R3 and the first end of the resistor R1.
Further, in order to improve the sampling accuracy, in the disclosure, the ratio of R1 to R2 is 1/20-1/5.
For example 1/20, 1/10, 1/5.
In this disclosure, still include the voltage follower, the input of voltage follower is connected with the second end of resistance R1 and the first end of resistance R2, the output of voltage follower with AD _ IO detects the foot and connects.
The voltage follower can improve input impedance, increase the interference killing feature, reduce the output impedance of signal source, guarantee AD conversion precision, add the voltage follower before AD conversion and make the voltage of sampling more close to the ideal value, sample voltage just so is equal to actual voltage basically.
In the present disclosure, in order to reduce the occurrence of resonance so as not to affect the reliability of sampling, a resistor R4 is further included, and the resistor R4 is connected in series at the input end of the voltage follower.
In the disclosure, the voltage follower further comprises a resistor R5 and a capacitor C1, wherein a first end of the resistor R5 is connected to the output end of the voltage follower, and a second end of the resistor R5 is connected to the AD _ IO detection pin; the first end of the capacitor C1 is connected with the second end of the resistor R5, and the second end of the capacitor C1 is grounded.
The resistor R5 and the capacitor C1 form an R-C circuit, the self-excitation is possibly generated in the operation and amplification process, the self-excitation condition is damaged as far as possible through the R-C circuit, the circuit can be more stable, meanwhile, one end of the capacitor is connected with the resistor, the other end of the capacitor is grounded, high-frequency noise can be filtered, and sampling is more accurate and stable.
Because the resistance after the intercommunication can be influenced to the distance between first detection piece and the second detection piece, in this disclosure, the distance between first detection piece and the second detection piece is 80mm ~ 100 mm.
In this disclosure, thereby through the distance between first detection piece of design and the second detection piece with the resistance value after both communicate stabilize in certain extent to the too big or the obscure condition of change value of voltage that leads to too little resistance value or too big resistance value.
In this disclosure, the liquid level detection device is in signal connection with a control device of the wet surface cleaning apparatus for prompting liquid level information by the control device.
This is disclosed through the signal connection with controlling means, can give the user with liquid level information suggestion, and the user of being convenient for operates cleaning equipment according to the condition of liquid level information, if gets rid of sewage, mends clean water etc..
Fig. 6 is a schematic structural view of a separation assembly of a sewage storage apparatus according to an embodiment of the present disclosure.
Fig. 7 is a schematic view of another angle of the separation assembly of the wastewater storage apparatus according to an embodiment of the present disclosure.
Fig. 8 is a schematic cross-sectional structural view of a separation assembly of a wastewater storage apparatus according to an embodiment of the present disclosure.
Fig. 9 is a schematic structural view of a sewage storage apparatus according to an embodiment of the present disclosure.
Fig. 10 is a schematic structural view of a recovery tank according to an embodiment of the present disclosure.
Fig. 11 is a schematic structural view of a suction device according to one embodiment of the present disclosure.
The utility model discloses a with retrieve jar complex part, the separator assembly, liquid level detection device set up in on the separator assembly.
As shown in fig. 6-8, the separation assembly 300 of the present disclosure includes:
a cover 310, the cover 310 forming a gas flow path for allowing gas in the gas flow path to flow when a negative pressure is applied to one end of the gas flow path of the cover 310; and
a separation part 320, wherein the separation part 320 is fixed to the cover 310, an inlet hole 321 is formed at one of the side part or the bottom part of the separation part 320, and an outlet hole 322 is formed at the side part and/or the bottom part of the separation part 320;
wherein, after the fluid to be separated enters the separation part 320 through the inlet hole 321, the gas outlet hole 322 in the fluid enters the gas circulation channel; the liquid in the fluid is discharged to the outside of the separation part 320 through the discharge hole 322, and at least a portion of the solids in the fluid is located inside the separation part 320.
When the separation assembly 300 of the present disclosure is used, gas-solid-liquid three-phase separation entering the separation section can be realized, the solid is blocked in the separation section, the liquid passes through the separation section and falls into the sewage tank 410 under the action of gravity, and the gas is discharged through the gas circulation channel.
In an alternative embodiment of the present disclosure, the upper end of the separating part 320 is formed in an open shape, and the upper end opening of the separating part 320 is closed by the cover 310.
The separating portion 320 may be integrally formed with the cover 310, and the separating portion 320 may be formed separately from the cover 310 and fixed to the cover 310, which is not limited in the disclosure.
In the present disclosure, the discharge hole 322 is formed at a side portion farther from the other end of the gas flow channel to increase a flow distance of the gas before entering the gas flow channel; that is to say, so set up and can make the wind path form the longest, be convenient for improve separation efficiency.
According to at least one embodiment of the present disclosure, the separation part 320 includes:
the upper end of the cylinder 323 is fixed to the cover body 310; and
a cover portion 324, the cover portion 324 being openably and closably provided at a lower end of the cylinder 323;
when the separating assembly 300 is in an operating state, the cover 324 is disposed at the lower end of the cylinder 323 and can close the lower end of the cylinder 323; when the cover 324 opens the lower end of the cylinder 323, the solid contaminants in the separation part 320 can be removed.
In the present disclosure, it is preferable that the cover portion 324 is rotatably provided to the cylinder 323, and the cover portion 324 is locked and released by a first locking portion;
wherein the rotation axis of the cover 324 is perpendicular to the axis of the cylinder 323.
As one implementation form, as shown in fig. 8, the first locking portion includes:
a button 325, the button 325 being movable between a first position and a second position, and the first locking portion locking the cover portion 324 when the button 325 is in the first position and releasing the cover portion 324 when the button 325 is in the second position.
In the present disclosure, the cover portion 324 is formed with a buckle 3241, and when the button 325 is located at the first position, the buckle 3241 is engaged with the first locking portion to achieve locking of the cover portion 324.
Preferably, the middle of the button 325 is rotatably disposed on the cylinder 323, and one end of the button 325 is formed with a hook 3251 engaged with a catch 3241 of the cover 324, wherein when the button 325 is located at the first position, the catch 3241 is engaged with the hook 3251 to lock the cover 324.
When the other end of the button 325 is pressed, so that the button 325 moves from the first position to the second position, the catch 3241 disengages from the hook 3251, thereby releasing the cover 324.
The first locking portion further includes:
a first elastic part 326, wherein the first elastic part 326 is disposed between the cylinder 323 and the button 325 to provide a reset force to the button 325, and the first locking part locks the cover 324 by the reset force.
That is, the first elastic part 326 may provide an elastic force to the other end of the cylinder 323, thereby enabling the button 325 to move from the second position to the first position.
The cover 324 is formed with an inlet hole 321, wherein a shielding part 3242 is formed at a periphery of the inlet hole 321, and an upper end of the shielding part 3242 is spaced from an upper surface of the cover 324 by a predetermined distance.
That is, in the present disclosure, the access hole 321 is formed in the cover portion 324.
In an alternative embodiment of the present disclosure, the cross-sectional shape of the cylinder 323 is a square, and a side wall far from the other end of the gas flow passage is provided with a discharge hole 322.
According to at least one embodiment of the present disclosure, the bottom of the cover 310 is formed with an opening, and the opening of the bottom of the cover 310 is formed as an inlet of a gas circulation passage.
In the present disclosure, the separating assembly 300 further includes:
a support 340, wherein the support 340 is disposed on the cover 310 and is located inside the cover 310;
wherein the supporting part 340 is formed with a through hole formed as a part of the gas flow channel.
More preferably, a filter part 350 is provided in the through hole of the support part 340 to filter the solid and/or liquid passing through the gas flow passage by the filter part 350.
As an implementation form, the filtering part 350 may be a HEPA filter.
In the present disclosure, the separating assembly 300 further includes:
a liquid level detection device 123 (not shown), and the liquid level detection device 136 is disposed on the housing 310.
Specifically, the liquid level detection device 123 includes two detection pieces 361, specifically sheet-shaped structures, and the two detection pieces 361 are respectively connected to the two detection terminals, so that when a voltage is applied to the detection terminals, and the detection pieces 361 contact sewage, the two detection terminals are conducted, and thus the liquid level position of the sewage is determined according to the voltage ratio or the difference.
The detection terminal can be communicated with a control device of the surface cleaning equipment so as to prompt a user that the sewage in the sewage tank is full through the control device.
More preferably, the separation part 320 is located between two liquid level detection pieces 361, i.e., between a pair of liquid level detection pieces 361, and has a discharge hole formed in the cover part 324 to facilitate the outflow of liquid and to filter solids.
In an optional embodiment of the present disclosure, the separation assembly 300 further includes:
a bayonet joint actuator 370, said bayonet joint actuator 370 being movable between a first position and a second position; when the bayonet head actuator 370 is moved from the second position to the first position, the bayonet head actuator 370 is extended; when the bayonet head actuator 370 is moved from the first position to the second position, the bayonet head actuator 370 is retracted.
More preferably, the bayonet joint actuator 370 is movable in a vertical direction such that the first position of the bayonet joint actuator 370 is the uppermost position of the bayonet joint actuator 370; the second position of the bayonet joint actuator 370 is the lowermost position of the bayonet joint actuator 370.
In an alternative embodiment of the present disclosure, the cover 310 is formed with an operation hole, and the inside of the cover 310 is formed with a guide 311, and the bayonet joint actuating part 370 is disposed corresponding to the position of the operation hole, so that a person can operate the bayonet joint actuating part 370 through the operation hole; and the guide 311 serves to guide the movement of the card joint actuator 370.
In the present disclosure, a second elastic portion 380 is disposed between the bayonet joint actuator 370 and the cover 310, the second elastic portion 380 is in a pre-compression state, and when a downward external force is applied to the bayonet joint actuator 370, the bayonet joint actuator 370 moves downward, so that the bayonet joint actuator 370 moves from a first position to a second position; when the external force disappears, the bayonet joint actuator 370 is moved from the second position to the first position by the restoring force of the second elastic portion 380.
In the present disclosure, the bayonet joint actuator 370 is formed as a bayonet joint that secures the separation assembly, or a sewage storage device, to the surface cleaning apparatus by snapping the bayonet joint to the housing of the surface cleaning apparatus.
More preferably, an upper surface of the chucking head is formed in an inclined shape, and the upper surface of the chucking head is inclined downward in a direction in which the separation assembly is mounted to the surface cleaning apparatus.
Fig. 9 is a schematic structural view of a sewage storage apparatus according to an embodiment of the present disclosure.
According to another aspect of the present disclosure, as shown in fig. 9, there is provided a sewage storage apparatus 400 including the above-described separation assembly 300.
In an optional embodiment of the present disclosure, the sewage storage apparatus 400 further includes:
a recovery tank, the upper end of which is open; the housing 310 of the separation assembly 300 is disposed in the recovery tank such that the separation portion 320 of the separation assembly 300 is located inside the recovery tank.
In the present disclosure, it is preferable that a sealing member 420 is provided between the cover 310 and the recovery tank.
More specifically, a portion of the cover 310 is inserted into the upper end of the recovery tank, and a sealing member 420 is disposed between the outer surface of the cover 310 and the inner surface of the recovery tank.
Fig. 10 is a schematic structural view of a recovery tank according to an embodiment of the present disclosure.
In the present disclosure, as shown in fig. 10, the recovery tank includes:
a case 411, an upper end of the case 411 being formed as an opening of the recovery tank; a suction hole is formed in the bottom wall of the case 411; and
and a suction pipe 412, wherein the suction pipe 412 is disposed in the tank 411, a lower end of the suction pipe 412 is communicated with a suction hole of the tank 411, and an upper end of the suction pipe 412 is communicated with the inlet hole 321.
In an alternative embodiment of the present disclosure, the upper end of the suction pipe 412 passes through the inlet hole 321, and is located inside the separation part 320.
In the present disclosure, the upper end of the suction pipe 412 is spaced apart from the cover 310 by a predetermined distance so that the fluid entering the separation part 320 through the suction pipe 412 does not adhere to the surface of the cover 310.
Fig. 11 is a schematic structural view of a suction device according to one embodiment of the present disclosure.
According to another aspect of the present disclosure, as shown in fig. 6, there is provided a suction device 500, which includes the above-mentioned separation assembly 300, or the above-mentioned sewage storage device 400.
Preferably, the suction device 500 further comprises:
a motor assembly 100, said motor assembly 100 for generating a negative pressure and providing said negative pressure to the gas flow path of said enclosure 310.
According to another aspect of the present disclosure, there is provided a liquid level detection method of a wet surface cleaning apparatus comprising the above wet surface cleaning apparatus, comprising
1) Acquiring voltage values V1 and V2 of a voltage detection end;
2) calculating the ratio or difference S of V1 and V2 according to the obtained V1 and V2;
3) judging whether the liquid level reaches a threshold value according to the change of the S value;
optionally, the liquid level information is determined according to whether the S value is equal to a preset value.
The liquid level detection of the present disclosure includes two situations, one being only two states, e.g., judgment of water full and water shortage, such as judgment of water shortage in a liquid supply tank, and judgment of water full in a recovery tank. The other is a plurality of liquid level states, and whether a certain liquid level is reached can be judged according to a preset value, such as the liquid level percentage, or the information of the liquid level height.
For example, when one of the detecting members is disposed near the full liquid position, the full water state is determined:
when the confession fluid reservoir lacks water, do not insert when the water tank, or the water tank inserts but the water tank is anhydrous, or the water tank inserts has water and does not have under the state of contact detection piece simultaneously:
IO _1 is high level, IO _2 is low level, and the IO _ AD voltage value is V1; IO _1 is low level, IO _2 is high level, and the IO _ AD voltage value is V2; the ratio or difference between V1 and V2 is relatively fixed;
when the water tank is connected and the water tank is full of water:
IO _1 is high level, IO _2 is low level, and the IO _ AD voltage value is V1; IO _1 is low level, IO _2 is high level, and the IO _ AD voltage value is V2; comparing the ratio or difference between V1 and V2 with the value when the water tank is not connected can obtain whether the water tank is full of water or not;
for the recovery tank, the user needs to be reminded to treat the sewage in time after the water is judged to be full.
When the detection piece sets up simultaneously and is close to the water tank bottom, judge the water shortage state:
when the liquid supply tank has water:
IO _1 is high level, IO _2 is low level, and the IO _ AD voltage value is V1; IO _1 is low level, IO _2 is high level, and the IO _ AD voltage value is V2; the ratio or difference between V1 and V2 is relatively fixed;
when the liquid level is lower than the detection piece, the water tank is in a water shortage state:
IO _1 is high level, IO _2 is low level, and the IO _ AD voltage value is V1; IO _1 is low level, IO _2 is high level, and the IO _ AD voltage value is V2; the ratio or difference between V1 and V2 can be compared with the previous value to determine whether the water tank is lack of water.
If the judgment is carried out according to the preset value: several preset values need to be set in advance according to the voltage ratio or difference of different liquid level conditions, and the liquid level of the liquid level detection device is judged according to the comparison between the actual detection value and the preset value.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.