阅读说明：本技术 倾倒检测设备和电器 (Toppling detection equipment and electric appliance ) 是由 宋宪磊 李绍健 杨昆 王浩良 罗岚 张荥 于 2021-02-22 设计创作，主要内容包括：本申请涉及一种倾倒检测设备和电器。该倾倒检测设备,包括控制电路、示警装置和盛装有导电液体的球体,控制电路连接球体和示警装置；控制电路获取球体输出的电信号,并根据该电信号输出对应控制信号控制示警装置工作；导电液体不完全填充球体,电信号由球体的放置姿态决定。上述倾倒检测设备,导电液体不完全填充球体,由球体根据自身的放置姿态向控制电路输出对应的电信号,再由控制电路根据获取的电信号输出控制信号控制示警装置工作。这样,就可以根据示警装置的工作状况判断球体是否姿势正确,能有效避免误触发的情况发生,提高控制可靠性。(The application relates to a toppling detection device and an electric appliance. The toppling detection equipment comprises a control circuit, a warning device and a ball body filled with conductive liquid, wherein the control circuit is connected with the ball body and the warning device; the control circuit acquires an electric signal output by the ball body and outputs a corresponding control signal to control the warning device to work according to the electric signal; the conductive liquid does not completely fill the sphere, and the electrical signal is determined by the placement posture of the sphere. Above-mentioned detection equipment that emptys, the spheroid is not filled to the conducting liquid totally, by the spheroid according to the posture of placing of self to control circuit output corresponding signal of telecommunication, again by control circuit according to the signal of telecommunication output control signal control warning device work that obtains. Therefore, whether the posture of the ball is correct or not can be judged according to the working condition of the warning device, the condition of false triggering can be effectively avoided, and the control reliability is improved.)

1. The toppling detection equipment is characterized by comprising a control circuit, a warning device and a ball body containing conductive liquid, wherein the control circuit is connected with the ball body and the warning device; the control circuit acquires the electric signal output by the sphere and outputs a corresponding control signal according to the electric signal to control the warning device to work; the conductive liquid does not completely fill the sphere, and the electric signal is determined by the placement posture of the sphere.

2. The pouring detection device according to claim 1, wherein the sphere comprises a cavity and a protrusion arranged on the surface of the cavity, the cavity and the protrusion are communicated to form a cavity, and the cavity is filled with a conductive liquid which does not completely fill the cavity; the bump is connected with the control circuit.

3. The pour detection apparatus of claim 2, wherein the cavity is grounded through an isolation resistor.

4. The pour detection apparatus according to claim 2, wherein the number of said projections is plural, and a difference in volume between said conductive liquid and said cavity enables at least one projection to be separated from said conductive liquid.

5. The toppling detection device of claim 1, wherein the control circuit comprises a master control circuit and an alert driver circuit, the master control circuit being connected to the ball and the alert driver circuit, the alert driver circuit being connected to the alert device.

6. The toppling detection device of claim 5, wherein the main control circuit comprises a main control chip, a pull-up resistor and a filter capacitor, a power supply end of the main control chip is connected with a power supply, a detection end of the main control chip is connected with the ball body, and an output end of the main control chip is connected with the warning drive circuit; one end of the pull-up resistor is connected with the power supply, and the other end of the pull-up resistor is connected with the detection end of the main control chip; one end of the filter capacitor is connected with the power supply end of the main control chip, and the other end of the filter capacitor is grounded.

7. The toppling detection device according to claim 5, wherein the warning device is a buzzer, and the warning driving circuit comprises a first driving resistor, a first switch and a second driving resistor; one end of the first driving resistor is connected with the main control circuit, and the other end of the first driving resistor is connected with the control end of the first switch; the first end of the first switch is connected with a power supply through the second driving resistor, and the second end of the first switch is grounded; the buzzer is connected with the second driving resistor in parallel.

8. The toppling detection device of claim 5, wherein the warning means comprises a first indicator light and a second indicator light, and the warning driver circuit comprises a first indicator light driver circuit and a second indicator light driver circuit, the first indicator light driver circuit connecting the main control circuit and the first indicator light, and the second indicator light driver circuit connecting the main control circuit and the second indicator light.

9. The pour detection apparatus of claim 8, wherein the first indicator light drive circuit comprises a third drive resistor, a second switch, and a fourth drive resistor; one end of the third driving resistor is connected with the main control circuit, and the other end of the third driving resistor is connected with the control end of the second switch; the fourth driving resistor is connected with the first indicator lamp in series, the other end of the fourth driving resistor is connected with a power supply, and the other end of the first indicator lamp is connected with the first end of the second switch; the second end of the second switch is grounded.

10. The pour detection apparatus of claim 8, wherein the second indicator light drive circuit comprises a fifth drive resistor, a third switch, and a sixth drive resistor; one end of the fifth driving resistor is connected with the main control circuit, and the other end of the fifth driving resistor is connected with the control end of the third switch; the sixth driving resistor is connected with the second indicator lamp in series, the other end of the sixth driving resistor is connected with the power supply, and the other end of the second indicator lamp is connected with the first end of the third switch; the second end of the third switch is grounded.

11. An electrical appliance comprising a body and a pour detection device as claimed in any one of claims 1 to 10 disposed within the body.

Technical Field

The application relates to a detecting technical field, in particular to a pouring detection device and an electric appliance.

Background

With the continuous improvement of the living standard of people, various electric appliances appear. Some electrical appliances, such as a table-type small fan, an electric heating small sun, an oxygen generator and the like, have requirements on the placement direction, and if the electrical appliances cannot be correctly placed according to the required direction, product faults can be caused, even accidents such as electric leakage, fire and the like can be caused, and immeasurable loss is caused.

The traditional dumping detection equipment adopts a photoelectric detection principle and consists of a spherical blocking bead, a light emitting end and a light receiving end which are arranged oppositely. When the equipment is in a normal posture, the spherical blocking bead blocks a light path from the light emitting end to the light receiving end, and the light receiving end cannot receive a light signal emitted by the light emitting end; when equipment inclines or emptys, the globular ball that keeps off rocks along with equipment and deviates from the initial position, does not shelter from the light path, and the light receiving terminal receives the light signal that the light emission end sent. However, the mechanical switch is used for realizing the dumping protection, and is easily influenced by external vibration, so that the false triggering is caused. Therefore, the conventional toppling detection apparatus has a problem of poor control reliability.

Disclosure of Invention

Therefore, it is necessary to provide a pouring detection device and an electric appliance with good pouring control reliability to improve the control reliability of the pouring detection device, aiming at the problem of poor control reliability of the conventional pouring detection device.

A dumping detection device comprises a control circuit, a warning device and a ball body filled with conductive liquid, wherein the control circuit is connected with the ball body and the warning device; the control circuit acquires the electric signal output by the sphere and outputs a corresponding control signal according to the electric signal to control the warning device to work; the conductive liquid does not completely fill the sphere, and the electric signal is determined by the placement posture of the sphere.

In one embodiment, the sphere comprises a cavity and a protrusion arranged on the surface of the cavity, the cavity and the protrusion are communicated, the cavity is filled with a conductive liquid, and the conductive liquid does not completely fill the cavity; the bump is connected with the control circuit.

In one embodiment, the cavity is grounded through an isolation resistor.

In one embodiment, the number of the protrusions is multiple, and the difference in volume between the conductive liquid and the cavity enables at least one protrusion to be separated from the conductive liquid.

In one embodiment, the control circuit comprises a main control circuit and an alarm driving circuit, the main control circuit is connected with the ball body and the alarm driving circuit, and the alarm driving circuit is connected with the alarm device.

In one embodiment, the main control circuit comprises a main control chip, a pull-up resistor and a filter capacitor, wherein the power supply end of the main control chip is connected with a power supply, the detection end of the main control chip is connected with the ball body, and the output end of the main control chip is connected with the warning drive circuit; one end of the pull-up resistor is connected with the power supply, and the other end of the pull-up resistor is connected with the detection end of the main control chip; one end of the filter capacitor is connected with the power supply end of the main control chip, and the other end of the filter capacitor is grounded.

In one embodiment, the warning device is a buzzer, and the warning driving circuit comprises a first driving resistor, a first switch and a second driving resistor; one end of the first driving resistor is connected with the main control circuit, and the other end of the first driving resistor is connected with the control end of the first switch; the first end of the first switch is connected with a power supply through the second driving resistor, and the second end of the first switch is grounded; the buzzer is connected with the second driving resistor in parallel.

In one embodiment, the warning device comprises a first indicator light and a second indicator light, the warning driving circuit comprises a first indicator light driving circuit and a second indicator light driving circuit, the first indicator light driving circuit is connected with the main control circuit and the first indicator light, and the second indicator light driving circuit is connected with the main control circuit and the second indicator light.

In one embodiment, the first indicator light driving circuit comprises a third driving resistor, a second switch and a fourth driving resistor; one end of the third driving resistor is connected with the main control circuit, and the other end of the third driving resistor is connected with the control end of the second switch; the fourth driving resistor is connected with the first indicator lamp in series, the other end of the fourth driving resistor is connected with a power supply, and the other end of the first indicator lamp is connected with the first end of the second switch; the second end of the second switch is grounded.

In one embodiment, the second indicator lamp driving circuit comprises a fifth driving resistor, a third switch and a sixth driving resistor; one end of the fifth driving resistor is connected with the main control circuit, and the other end of the fifth driving resistor is connected with the control end of the third switch; the sixth driving resistor is connected with the second indicator lamp in series, the other end of the sixth driving resistor is connected with the power supply, and the other end of the second indicator lamp is connected with the first end of the third switch; the second end of the third switch is grounded.

An electric appliance comprises a machine body and the toppling detection equipment arranged in the machine body.

The dumping detection equipment comprises a control circuit, a warning device and a ball body filled with conductive liquid, wherein the ball body is incompletely filled with the conductive liquid, the ball body outputs a corresponding electric signal to the control circuit according to the placing posture of the ball body, and the control circuit outputs a control signal to control the warning device to work according to the acquired electric signal. Therefore, whether the posture of the ball is correct or not can be judged according to the working condition of the warning device, the condition of false triggering can be effectively avoided, and the control reliability is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of the components of a pour detection apparatus in one embodiment;

FIG. 2 is a schematic diagram of a sphere in one embodiment;

FIG. 3 is a schematic structural diagram of a sphere in another embodiment;

FIG. 4 is a block diagram showing the components of a pour detection apparatus according to another embodiment;

FIG. 5 is a schematic diagram of an embodiment of a master control circuit;

FIG. 6 is a schematic diagram of the structure of an alarm driving circuit and an alarm device in one embodiment;

FIG. 7 is a schematic diagram of a first indicator light driver circuit and a first indicator light in one embodiment;

fig. 8 is a schematic structural diagram of a second indicator light driving circuit and a second indicator light in one embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.

In one embodiment, as shown in fig. 1, a pour detection device is provided, comprising a control circuit 200, a warning device 300 and a ball 100 containing a conductive liquid, the control circuit 200 connecting the ball 100 and the warning device 200. The control circuit 200 obtains the electrical signal output by the sphere 100 and outputs a corresponding control signal to control the operation of the warning device 300 according to the electrical signal. The conductive liquid does not completely fill the ball 100, and the electrical signal is determined by the posture of the ball 100.

Here, the sphere 100 is a hollow insulator having a spherical shape. The control circuit 200 is a circuit structure having signal acquisition and control signal output capabilities. The warning device 300 may be a buzzer and/or an indicator light, and the number of the buzzers and/or the indicator lights may be one or more.

Specifically, the ball 100 includes a spherical shell and a cavity within the spherical shell, wherein the cavity contains a conductive liquid. The conductive liquid does not completely fill the sphere 100, meaning that the volume of the conductive liquid is less than the volume of the cavity in the sphere 100. The conductive liquid can be connected to the control circuit 200 through a conductive sheet mounted on a conductive portion of the ball 100, or a conductive material can be printed on a conductive portion of the ball 100 that needs to be electrically connected to the control circuit 200, so that the conductive liquid can be electrically connected to the control circuit 200 through the ball 100.

Further, the number of the conductive parts may be one or more. If the number of the conductive portions is one, the conductive portions are disposed right above the predetermined correct placement posture of the ball 100. If the number of the conductive portions is plural, the conductive portions may be arranged according to a certain rule. For example, the first conductive portion may be disposed right above the sphere 100 in a predetermined correct placement posture, and the remaining conductive portions may be uniformly disposed at other positions of the sphere 100 symmetrically with the first conductive portion as a center. The following describes a specific operation process of the toppling detection device by taking the case where the number of the conductive portions is one as an example.

Since the conductive liquid is subjected to the force of gravity, the portion of the sphere 100 not filled with the conductive liquid is always located right above the currently placed posture of the sphere 100. If the current placing posture is just the correct posture, the conductive part of the sphere 100 is separated from the conductive liquid, and the electrical connection is disconnected; if the current placement posture is incorrect, the conductive portion of the sphere 100 is conducted with the conductive liquid. In both cases, the ball 100 will output different electrical signals to the control circuit 200, and the control circuit 200 can determine whether the ball 100 is in the correct posture according to the received electrical signals, and then output different control signals to the warning device 300 to control the warning device 300 to operate. For example, if the warning device 300 is a buzzer, the control circuit 200 may send a control signal to turn off the buzzer when determining that the ball 100 is in the correct posture, and send a control signal to turn off the buzzer when determining that the ball 100 is in the incorrect posture.

It can be understood that when the included angle between the placing posture of the ball 100 and the preset correct placing posture is smaller than the critical value, although the portion of the ball 100 not filled with the conductive liquid is not located right above the preset correct placing posture of the ball 100, the conductive portion of the ball 100 still separates from the conductive liquid. Based on this, the correct placement posture determined by the control circuit 200 refers to a set of placement postures with an included angle smaller than a critical value with a preset correct placement posture. The critical value is related to the size of the conductive portion and the difference in volume between the conductive liquid and the cavity in the ball 100: the smaller the size of the conductive part is, the smaller the volume difference between the conductive liquid and the cavity in the sphere 100 is, the smaller the critical value is, and the higher the detection precision is. Based on this, can adjust the detection precision of empting detection device through the size of reasonable design electrically conductive position to and the volume difference of cavity in electrically conductive liquid and spheroid 100, in order to match different scene demands.

The toppling detection device comprises a control circuit 200, a warning device 300 and a ball body 100 containing conductive liquid, wherein the ball body 100 is not completely filled with the conductive liquid. The sphere 100 outputs a corresponding electrical signal to the control circuit 200 according to the placing posture thereof, and the control circuit 200 outputs a control signal according to the obtained electrical signal to control the operation of the warning device 300. Therefore, whether the sphere is in the correct posture can be judged according to the working condition of the warning device 300, the situation of false triggering can be effectively avoided, and the control reliability is improved.

In one embodiment, referring to fig. 2, the sphere includes a cavity 110 and a protrusion 120 disposed on a surface of the cavity 110, the cavity 110 and the protrusion 120 are connected to form a cavity, and the cavity contains a conductive liquid, and the conductive liquid does not completely fill the cavity. The bump 120 is connected to the control circuit 200.

Specifically, the cavity 110 is a ball insulator. The protrusion 120 is disposed on the surface of the cavity 100, and the shape of the protrusion 120 may be a cylinder, a cone, a cuboid, a tetrahedron, or the like. As shown in fig. 2, the protrusion 120 is a cylindrical protrusion. The number of the projections 120 may be one or more. The conductive liquid does not completely fill the cavity inside the cavity 110 and the protrusion 120, which means that the volume of the conductive liquid is smaller than the volume of the cavity. The bump 120 is connected to the control circuit 200, that is, the conductive portion on the bump 120 is connected to the control circuit 200. Taking the cylindrical protrusion as an example, the conductive portion may be a top surface of the cylindrical protrusion or a side surface of the cylindrical protrusion. The conductive sheet may be disposed on the conductive portion corresponding to the protrusion 120 made of insulating material, or the conductive portion on the protrusion 120 may be directly made of conductive material. In summary, the present embodiment is not limited to the shape and number of the protrusions 120 and the implementation manner of the electrical connection between the protrusions 120 and the control circuit 200.

Specifically, if the number of the protrusions 120 is 1 and the protrusions 120 are disposed right above the top end of the cavity 110, when the ball 100 is in the correct placement posture, the protrusions 120 are separated from the conductive liquid to form an open circuit; when the ball 100 is not properly positioned, the protrusion 120 is in communication with the conductive liquid. In both cases, the protrusion 120 will output different electrical signals to the control circuit 200, and the control circuit 200 can determine whether the sphere 100 is in the correct posture according to the received electrical signals, and then output different control signals to the warning device 300 to control the warning device 300 to operate.

Further, in one embodiment, the chamber 110 is grounded through an isolation resistor. Specifically, a grounding terminal may be disposed right below or obliquely below the cavity 110 in the correct placement posture, so as to ground the conductive liquid in the cavity 110. And the conductive liquid is grounded through an isolation resistor to isolate interference.

In the above embodiment, the ball 100 is designed to have the cavity 110 and the protrusion 120 communicated with each other, and the protrusion 120 is connected to the control circuit 200, so that under the condition of a certain volume of the conductive liquid, the ball is beneficial to further avoiding false triggering caused by external vibration, and the reliability of control is improved.

In one embodiment, the number of protrusions 120 is multiple, and the difference in volume of the conductive liquid and the cavity enables at least one protrusion 120 to be separated from the conductive liquid.

Specifically, the number of the protrusions 120 may be two, three or any other number. The separation of the bump 120 from the conductive liquid means that the electrical connection between the bump 120 and the conductive liquid is broken. For ease of understanding, the following description will be given by way of example in the case where the number of the projections 120 is 6 and 5, respectively.

As shown in fig. 2, the number of the protrusions is 6, and the protrusions are uniformly distributed on six square positions of the cavity 110, that is, the central axes of the protrusions are coplanar and intersect with the center of the sphere of the cavity 110, and the central axes of adjacent protrusions are perpendicular to each other. If the volume difference between the conductive liquid and the cavity enables one protrusion to be separated from the conductive liquid, the control circuit 200 can determine which protrusion of the sphere 100 is placed upward according to the received electrical signal in the structure shown in fig. 2. If the volume difference between the conductive liquid and the cavity enables the two protrusions to be separated from the conductive liquid, the structure shown in fig. 2 can be used to determine which protrusion of the sphere 100 is placed upward or which two protrusions are placed obliquely upward in the sphere 100.

As shown in fig. 3, when the number of the protrusions is 5, the first protrusion 121 may be disposed right above the cavity 110 in a preset correct posture, the remaining four first protrusions are uniformly disposed on the cavity 110 with the center as the center, the angle formed by the central axes of the adjacent protrusions is θ, and the central axes of the protrusions are coplanar and intersect at the spherical center O of the cavity 110. If the volume difference between the conductive liquid and the cavity enables a protrusion to be separated from the conductive liquid, the control circuit 200 in the structure shown in fig. 3 can determine whether the sphere 100 is in a correct position, whether the tilt angle is θ or 2 θ, and whether the tilt direction is left or right according to the received electrical signal. If the volume difference between the conductive liquid and the cavity enables the two protrusions to be separated from the conductive liquid, the structure shown in fig. 3 can be used to determine whether the sphere 100 is in a correct placement posture, whether the tilt angle is θ/2, θ, 3 θ/2, or 2 θ, and whether the tilt direction is left or right.

It is understood that when the number of the protrusions 120 is 5, the protrusions may be disposed in the cavity in a positional relationship. For example, the first protrusion 121 may be disposed right above the cavity 110 in a preset correct posture, the remaining four first protrusions 121 are disposed at four positions of the cavity 110, i.e., front, back, left, and right, and the central axes of the remaining protrusions and the first protrusions 121 form angles β, and the axes of the five protrusions are coplanar and intersect at the spherical center of the cavity 110. If the volume difference between the conductive liquid and the cavity enables a protrusion to be separated from the conductive liquid, this configuration can be used to determine whether the sphere 100 is in the correct position, whether the tilt angle is β, and whether the tilt direction is forward, backward, left, or right.

In the above embodiment, different numbers and position relationships of the protrusions can be designed, and the number of the protrusions which can be separated from the conductive liquid at the same time can be designed to match different application requirements, so that the application scene of the pouring detection device can be widened.

In one embodiment, referring to fig. 4, the control circuit 200 includes a main control circuit 210 and an alert driving circuit 220, the main control circuit 210 is connected to the ball 100 and the alert driving circuit 220, and the alert driving circuit 220 is connected to the alert device 300.

Specifically, the main control circuit 210 is configured to obtain an electrical signal output by the sphere 100, output a corresponding control signal to the warning driving circuit 220 according to the electrical signal, and drive the warning device 300 to operate by the warning driving circuit 220.

In one embodiment, the main control circuit comprises a main control chip, a pull-up resistor and a filter capacitor, wherein the power supply end of the main control chip is connected with a power supply, the detection end of the main control chip is connected with the ball body, and the output end of the main control chip is connected with the warning drive circuit; one end of the pull-up resistor is connected with the power supply, and the other end of the pull-up resistor is connected with the detection end of the main control chip; one end of the filter capacitor is connected with the power supply end of the main control chip, and the other end of the filter capacitor is grounded.

The main control chip may be an MCU (micro controller Unit, single chip microcomputer) chip, an FPGA (Field Programmable Gate Array) chip, or other types of chips. The number of the pull-up resistors may be one or more. The resistance of the pull-up resistor may be 9k Ω, 10k Ω, 11k Ω, or other values. Similarly, the number of the filter capacitors may be one or more. When the number of the filter capacitors is multiple, the multiple filter capacitors are connected in parallel and then connected with the power supply end of the main control chip. The type of the filter capacitor can be a polar capacitor or a non-polar capacitor, and can also be an electrolytic capacitor or a patch capacitor; the capacitance value of the filter capacitor can be 0.1uF, 10uF or 100uF, and can also be other values. In short, the present embodiment does not limit the specific types of the main control chip, the pull-up resistor, and the filter capacitor, and the resistance value of the pull-up resistor and the capacitance value of the filter capacitor. For ease of understanding, the specific operation of the master control circuit is illustrated below with reference to fig. 5.

Referring to fig. 5, a schematic diagram of the main control circuit 210 in an embodiment is provided, which is suitable for the case where the number of conductive sites in the sphere 100 is less than or equal to six, such as the sphere shown in fig. 2. As shown in FIG. 5, the electrical SIGNALs outputted from the ball are connected to the first detecting terminal 13-the sixth detecting terminal 18 of the main control chip through the conductive wires SIGNAL1-SIGNAL6, respectively. One end of the first pull-up resistor R1 is connected with a power supply, and the other end of the first pull-up resistor R1 is connected with the first detection end 13 of the main control chip U1; one end of the second pull-up resistor R2 is connected with a power supply, and the other end of the second pull-up resistor R2 is connected with the second detection end 14 of the main control chip U1; one end of a third pull-up resistor R3 is connected with a power supply, and the other end of the third pull-up resistor R3 is connected with a third detection end 15 of the main control chip U1; one end of a fourth pull-up resistor R4 is connected with a power supply, and the other end of the fourth pull-up resistor R4 is connected with a fourth detection end 16 of the main control chip U1; one end of a fifth pull-up resistor R5 is connected with a power supply, and the other end of the fifth pull-up resistor R5 is connected with a fifth detection end 17 of the main control chip U1; one end of the sixth pull-up resistor R6 is connected to the power supply, and the other end of the sixth pull-up resistor R6 is connected to the sixth detection terminal 18 of the main control chip U1. The power supply stably provides +5V voltage, and the resistance value of each pull-up resistor is 10k omega. In addition, one end of the first filter capacitor C1 is connected to the power supply end of the main control chip U1, the other end of the first filter capacitor C1 is grounded, and the second filter capacitor C2 is connected in parallel with the first filter capacitor C1. The first filter capacitor C1 is a 0.1uF patch capacitor, and the second filter capacitor C2 is a 100uF electrolytic capacitor. Furthermore, the conductive liquid in the BALL 100 is connected to the isolation resistor R7 through the ground line GND _ BALL provided in the BALL, and the other end of the isolation resistor R7 is grounded. The resistance of the isolation resistor R7 is 100 Ω.

When the conductive part where the conductive wire SIGNAL1 is located on the sphere is vertically upward, the conductive liquid is disconnected from the conductive wire SIGNAL1, and the first detection end 13 of the main control chip U1 detects a high-level SIGNAL; the other conductive lines SIGNAL2-SIGNAL6 on the ball are all in contact with the conductive liquid to form a path, and since the conductive liquid is grounded, the detection terminals 14-18 connected to these conductive lines, respectively, all detect low level SIGNALs. That is, when the SIGNAL detected by the main control chip U1 is 100000(1 is high level, 0 is low level), it can be determined that the placing posture of the ball is such that the conductive portion where the conductive line SIGNAL1 is located is vertically upward. In this way, the main control chip U1 can also determine the placement posture of the conductive portion where the conductive line SIGNAL 2-conductive line SIGNAL6 is located in the vertical direction according to the detected SIGNAL.

In the above embodiment, the main control circuit includes the main control chip, the pull-up resistor and the filter capacitor, which is favorable for improving the power supply quality of the main control chip, and the performance stability of the main control chip is improved, so as to improve the control reliability of the dumping detection device.

In one embodiment, referring to fig. 6, the warning device 300 is a buzzer BUZZ1, and the warning driving circuit 220 includes a first current limiting resistor R8, a first switch Q1, and a first driving resistor R9; one end of the first current limiting resistor R8 is connected to the main control circuit 210, and the other end of the first current limiting resistor R8 is connected to the control end of the first switch Q1; a first end of the first switch Q1 is connected with a power supply through a first driving resistor R9, and a second end of the first switch Q1 is grounded; the buzzer BUZZ1 is connected in parallel with the first driving resistor R9.

The first switch Q1 may be a transistor, a relay, a field effect transistor, or other types of switching devices. The first current limiting resistor R8 is a current limiting resistor of the first switch Q1, and the resistance of the first current limiting resistor R8 is determined by the characteristics of the first switch Q1. For example, when the first switch Q1 is an NPN triode, the first current limiting resistor R8 is connected to the base of the first switch Q1, so that the first switch Q1 operates in a saturation region; the collector of the first switch Q1 is connected to the first driving resistor R9, and the emitter of the first switch Q1 is grounded. Further, the buzzer BUZZ1 may be a voltage type buzzer or an electromagnetic buzzer. In summary, the specific device configurations of the first switch Q1 and the buzzer BUZZ1 are not limited in the embodiments of the present application. The first driving resistor R9 is a driving resistor of the buzzer BUZZ1, and provides a working voltage for two ends of the buzzer BUZZ1, and the resistance value is determined by the characteristics of the buzzer BUZZ 1. One end of the first current limiting resistor R8 is specifically connected to the first output terminal 3 of the control chip U1 in the main control circuit 210.

Specifically, the main control circuit 210 outputs different control signals to control the buzzer BUZZ1 to work through the first output terminal 3 and the conductive wire BUZZ according to the determined placing posture of the sphere. For example, the main control circuit 210 may output a +5V square wave signal, so that the first switch Q1 is turned on, and the buzzer BUZZ1 sounds. The main control circuit 210 can adjust the buzzer BUZZ1 to output different warning sounds by controlling the pulse width and frequency of the square wave signal, so that the user can adjust the placing posture of the ball according to the warning sounds.

In one embodiment, the warning device 300 includes a first indicator light and a second indicator light, and the warning driving circuit includes a first indicator light driving circuit and a second indicator light driving circuit, the first indicator light driving circuit connects the main control circuit and the first indicator light, and the second indicator light driving circuit connects the main control circuit and the second indicator light.

The first indicator light driving circuit is specifically connected to the second output terminal 5 of the main control chip U1 in the main control circuit 210, and the second indicator light driving circuit is specifically connected to the third output terminal 4 of the main control chip U1 in the main control circuit 210. Specifically, the main control circuit 210 can output different control signals through different output ends according to the determined placing posture of the sphere to control the corresponding indicator lamps to work, so that the indicator lamps output different warning lights, and the user can adjust the placing posture of the sphere according to the warning lights. It should be noted that the above different warning lights include, but are not limited to, different combinations of lighting colors, lighting numbers, and lighting time.

In one embodiment, referring to fig. 7, the first indicator driving circuit includes a second current limiting resistor R10, a second switch Q2, and a second driving resistor R11; one end of the second current limiting resistor R10 is connected to the main control circuit 210, and the other end of the second current limiting resistor R10 is connected to the control end of the second switch Q2; the second driving resistor R11 is connected in series with the first indicator light LED1, the other end of the second driving resistor R11 is connected with the power supply, and the other end of the first indicator light LED1 is connected with the first end of the second switch Q2; a second terminal of the second switch Q2 is connected to ground.

The second switch Q2 may be a transistor, a relay, a field effect transistor, or other types of switching devices. The second current limiting resistor R10 is a current limiting resistor of the second switch Q2, and the resistance of the second current limiting resistor R10 is determined by the characteristics of the second switch Q2. For example, when the second switch Q2 is an NPN triode, the second current limiting resistor R10 is connected to the base of the second switch Q2, so that the second switch Q2 operates in the saturation region; the collector of the second switch Q2 is connected to the first indicator LED1, and the emitter of the second switch Q2 is grounded. Further, the color of the first indicator LED1 may be red, green, or yellow, or may be other colors. In summary, the embodiments of the present application do not limit the specific device configurations of the second switch Q2 and the first indicator LED 1. The second driving resistor R11 is a driving resistor of the first indicator LED1, and its resistance is determined by the characteristics of the first indicator LED 1. One end of the second current limiting resistor R10 is specifically connected to the second output terminal 5 of the control chip U1 in the main control circuit 210.

Specifically, taking the first indicator light LED1 as a GREEN LED as an example, the main control circuit 210 outputs different control signals to control the first indicator light LED1 to operate through the second output terminal 5 and the conductive wire LED _ GREEN according to the determined placement posture of the sphere. For example, when the ball is in the correct placement posture, the main control circuit 210 may output a high level signal to control the second switch Q2 to be turned on, so that the first indicator light LED1 is turned on.

In one embodiment, referring to fig. 8, the second indicator driving circuit includes a third current limiting resistor R12, a third switch Q3, and a third driving resistor R13; one end of the third current limiting resistor R12 is connected to the main control circuit 210, and the other end of the third current limiting resistor R12 is connected to the control end of the third switch Q3; the third driving resistor R13 is connected in series with the second indicator light LED2, the other end of the third driving resistor R13 is connected with the power supply, and the other end of the second indicator light LED2 is connected with the first end of the third switch Q3; a second terminal of the third switch Q3 is connected to ground.

The third switch Q3 may be a transistor, a relay, a field effect transistor, or other types of switching devices. The third current limiting resistor R12 is a current limiting resistor of the third switch Q3, and the resistance of the third current limiting resistor R12 is determined by the characteristics of the third switch Q3. For example, when the third switch Q3 is an NPN triode, the third current limiting resistor R12 is connected to the base of the third switch Q3, so that the third switch Q3 operates in the saturation region; the collector of the third switch Q3 is connected to the second indicator light LED2, and the emitter of the third switch Q3 is grounded. Further, the color of the second indicator light LED1 may be red, green, or yellow, or may be other colors. In summary, the embodiments of the present application do not limit the specific device configurations of the third switch Q3 and the second indicator LED 2. The third driving resistor R13 is a driving resistor of the second indicator light LED2, and its resistance value is determined by the characteristics of the second indicator light LED 2. One end of the third current limiting resistor R12 is specifically connected to the third output terminal 4 of the control chip U1 in the main control circuit 210.

Specifically, taking the second indicator light LED1 as a RED LED as an example, the main control circuit 210 outputs different control signals to control the second indicator light LED2 to operate through the third output terminal 4 and the conductive wire LED _ RED according to the determined placement posture of the sphere. For example, when the ball is in an incorrect placing posture, the main control circuit 210 may output a high level signal, and control the third switch Q3 to be turned on, so that the second indicator light LED2 is turned on.

In the above embodiment, through setting up different warning device and warning drive circuit, can export different warning signal, be favorable to improving the flexibility of empting detection device application scene.

An electrical appliance comprises a machine body and the toppling detection device arranged in the machine body in any embodiment.

The electric appliance can be a product with specific requirements on the placement direction, such as an electric heater, a table small fan or an oxygen generator. Taking the electric heater as an example, in addition to the toppling detection device, the body is also fixed with a heating body and a heating driving circuit, the heating driving circuit is connected with the power supply and the heating body, and a control circuit of the toppling detection device is connected with the heating driving circuit.

Specifically, a sphere in the toppling detection device is fixed on the machine body and is consistent with the posture of the machine body. When the control circuit detects that the ball body is in an incorrect placing posture, on one hand, the control warning device outputs a corresponding warning signal, on the other hand, the control heating driving circuit stops working, and the electric appliance is switched into a safety protection device.

In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.