阅读说明：本技术 一种洗碗机过滤机构的清洗方法及采用该方法的洗碗机 (Method for cleaning filtering mechanism of dish-washing machine and dish-washing machine adopting method ) 是由 徐双超 董媛媛 杨林 焦立业 于 2020-04-20 设计创作，主要内容包括：本发明公开了一种洗碗机过滤机构的清洗方法及采用该方法的洗碗机,洗碗机包括储水池,以及设置于所述储水池内的过滤机构；还包括蒸汽发生装置,用于清洗过滤机构；该方法包括如下步骤,洗碗机的控制单元获取洗碗机的工作状态信息,并进行判断,若工作状态信息满足清洗条件,则向所述蒸汽发生装置发送启动信号,所述蒸汽发生装置清洗过滤机构。本发明所述一种洗碗机过滤机构的清洗方法及采用该方法的洗碗机,通过增设对过滤器进行高温蒸汽杀菌和软化的蒸汽清洗结构,并使用该蒸汽清洗结构对过滤器进行高温清洗,使得过滤器表面残留的杂质在高温蒸汽的作用下得到软化,并配合清洗装置实现对软化杂质的清除。(The invention discloses a method for cleaning a filtering mechanism of a dish-washing machine and the dish-washing machine adopting the method, wherein the dish-washing machine comprises a water storage tank and the filtering mechanism arranged in the water storage tank; the steam generating device is used for cleaning the filtering mechanism; the method comprises the following steps that a control unit of the dish washing machine obtains working state information of the dish washing machine, judges the working state information, and sends a starting signal to the steam generating device if the working state information meets a cleaning condition, and the steam generating device cleans a filtering mechanism. According to the cleaning method of the filtering mechanism of the dish washing machine and the dish washing machine adopting the method, the steam cleaning structure for sterilizing and softening the filter by high-temperature steam is additionally arranged, and the steam cleaning structure is used for cleaning the filter at high temperature, so that impurities remained on the surface of the filter are softened under the action of the high-temperature steam, and the cleaning device is matched to remove the softened impurities.)

1. A method for cleaning a filtering mechanism of a dish washing machine comprises a water storage tank and the filtering mechanism arranged in the water storage tank; the method is characterized in that: the steam generating device is used for cleaning the filtering mechanism;

the method comprises the following steps of,

the control unit of the dish washing machine acquires the working state information of the dish washing machine, judges the working state information, and sends a starting signal to the steam generating device if the working state information meets the cleaning condition, and the steam generating device cleans the filtering mechanism.

2. A method of cleaning a filter mechanism of a dishwasher according to claim 1, wherein: the working state information comprises execution information of a washing program of the dish washing machine, the control unit obtains the execution information and judges, if the washing program is executed, the control unit judges that the execution information meets the washing condition, and sends a starting signal to the steam generating device.

3. A method of cleaning a filter mechanism of a dishwasher according to claim 1 or 2, characterized in that: after the steam generating device executes a high-temperature steam spraying program with preset duration, the control unit sends a cleaning signal to the cleaning device, and the cleaning device at least sprays spray water to the surface of the filtering mechanism to remove impurities on the softened surface of the filtering mechanism.

4. A method for cleaning a filter mechanism of a dishwasher according to any one of claims 1 to 3, characterized in that: the water level detection device is characterized by further comprising a detection unit for sending water level information in the water storage tank to the control unit, when the water level information meets a preset water level, the control unit sends a drainage signal to the second pump, and the second pump discharges water in the water storage tank.

5. The method of claim 4, wherein: after the second pump discharges the water in the water storage tank, the control unit sends a starting signal to the steam generating device again, and the step is executed at least once.

6. The method for cleaning a filter mechanism of a dishwasher according to claim 5, wherein: after the starting signal sent by the control unit to the steam generating device reaches the preset times, the control unit sends a drying signal to the drying unit, and the drying unit conveys dry gas to the water storage tank to dry the water storage tank.

7. A dishwasher using a method of cleaning a filter means according to any one of claims 1 to 6.

8. A dishwasher according to claim 7, wherein:

the cleaning device comprises a spraying port and a water supply assembly for supplying spraying water to the spraying port;

the water supply assembly comprises a main pipeline connected with the water storage tank, a first pump arranged on the main pipeline, and a first branch pipe connected with the main pipeline through a first water dividing valve, wherein the first branch pipe is connected with the spraying port;

before the control unit sends a water supply signal to the first pump, the control unit sends a starting signal to the first water dividing valve, and the first water dividing valve conducts the first branch pipe and the main pipeline.

9. A dishwasher according to claim 8, wherein:

the water supply assembly also comprises a second branch pipe connected with the main pipeline through a second shunt valve, and the second branch pipe is connected with the inner container of the dish washer and used for extracting water in the inner container and supplying water to the first branch pipe through the main pipeline;

before the control unit sends a water supply signal to the first pump, the control unit sends a starting signal to the second water dividing valve, and the second water dividing valve conducts the second branch pipe and the main pipeline.

10. A dishwasher according to any one of claims 7 to 9, wherein: the filter is arranged on the top of the water storage tank and at least partially surrounds the filter; the high-temperature steam delivered to the water storage tank by the steam generating device is also used for softening impurities remained on the surface of the plane filter screen and/or eliminating bacteria remained on the surface of the filter.

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a cleaning method of a filtering mechanism of a dish-washing machine and the dish-washing machine adopting the method.

Background

The dishwasher has the defects that a filtering system is easy to remain residues especially at a filter, the filtering system is caused to breed bacteria, in addition, the residues accumulate every day and month and are accumulated, and the filtering failure and the like cannot be caused after a long time. The existing dish washer is lack of special cleaning for a filtering system, particularly a filter, the only scheme is to increase the water inlet and drainage process of the dish washer for many times, and the cleaning for the filtering system cannot be effectively realized.

Chinese patent with application number CN201210523666.6 discloses an external circulation water-saving filter of dish-washing machine, dish-washing machine using the filter and water-saving filtering method thereof, the external circulation water-saving filter of dish-washing machine includes exchanger, filter screen assembly, exhaust valve, drain valve; the exchanger is internally provided with a water purification cavity and a sewage cavity, the sewage cavity is positioned above the water purification cavity, the upper side of the sewage cavity is communicated with the sewage cavity and is provided with an exhaust port, and the lower side of the water purification cavity is communicated with the water purification cavity and is provided with a purified water outlet; a water inlet channel and a water drainage channel are respectively arranged on two opposite sides of the sewage cavity; the filter screen is located between sewage chamber and the water purification chamber, and the drain valve is connected with the water purification exit, and discharge valve are connected, and the back is closed to the drain valve, and the gas vent in sewage chamber and the water purification export in water purification chamber all are in sealedly.

Chinese patent application No. CN201380072364.4 discloses a method for detecting and removing a clogging condition of a filter in a dishwasher. The method includes determining a normal water level or a normal rate of change of the water level for a washing cycle of the dishwasher and monitoring the water level or the rate of change of the water level during execution of the washing cycle. The method further includes detecting a clogged condition of the filter by detecting a deviation of the monitored value from a normal value. The current position of the washing cycle being performed may then be determined. The method also includes performing a remedial operation to facilitate relieving the occlusion condition and determining whether the occlusion condition has been relieved.

Although the above prior art proposes a method for cleaning a filter of a dishwasher, the method is performed by combining a washing system of the dishwasher, and the filter is cleaned in the washing process, and the method has no separate washing system, cannot clean the filter independently, cannot ensure the cleaning of the filter, and has poor cleaning effect.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem underlying the present invention is to overcome the drawbacks of the prior art by providing a method for cleaning a filter mechanism of a dishwasher, which overcomes or at least partially solves the above mentioned problems.

Another object of the present invention is to provide a dishwasher using the above-mentioned filter mechanism washing method.

In order to solve the technical problems, the invention adopts the technical scheme that:

in one aspect, the invention provides a method for cleaning a filter mechanism of a dishwasher, the dishwasher comprising a water storage tank, and a filter mechanism arranged in the water storage tank; the steam generating device is used for cleaning the filtering mechanism;

the method comprises the following steps that a control unit of the dish washing machine obtains working state information of the dish washing machine, judges the working state information, and sends a starting signal to the steam generating device if the working state information meets a cleaning condition, and the steam generating device cleans a filtering mechanism.

Wherein, operating condition information includes the executive information of dish washer washing procedure, the control unit continuously acquires executive information to judge, if the washing procedure execution finishes, then the control unit judges that executive information satisfies the washing condition, to steam generating device sends start signal, acquires through the executive information to dish washer washing procedure for the in-process that the dish washer washing procedure execution finishes can realize right fast filtering mechanism's washing is avoided the remaining time of the remaining impurity on filter surface is overlength, leads to the solidification to be difficult to clear away.

In addition, after the steam generating device executes a high-temperature steam spraying program with preset duration, the control unit sends a cleaning signal to the cleaning device, the cleaning device at least sprays spraying water to the surface of the filtering mechanism to remove impurities on the softened surface of the filtering mechanism, and through the matching of the steam generating device and the cleaning device, the softening and cleaning of the impurities on the surface of the filtering mechanism are realized, and the impurities and bacteria on the surface of the filtering mechanism are effectively removed.

Meanwhile, the water level detection device also comprises a detection unit which sends water level information in the water storage tank to the control unit, when the water level information meets the preset water level, the control unit sends a drainage signal to a second pump, and the second pump discharges water in the water storage tank.

Further, after the second pump discharges the water in the water storage tank, the control unit sends a starting signal to the steam generating device again, and the step is executed at least once.

Further, after the starting signal sent by the control unit to the steam generating device reaches the preset times, the control unit sends a drying signal to the drying unit, and the drying unit conveys dry gas into the water storage tank to dry the water storage tank.

In one aspect, the present invention provides a dishwasher using the above-described filter mechanism washing method.

The cleaning device comprises a spraying port and a water supply assembly for supplying spraying water to the spraying port;

the water supply assembly comprises a main pipeline connected with the water storage tank, a first pump arranged on the main pipeline, and a first branch pipe connected with the main pipeline through a first water dividing valve, wherein the first branch pipe is connected with the spraying port;

before the control unit sends a water supply signal to the first pump, the control unit sends a starting signal to the first water dividing valve, and the first water dividing valve conducts the first branch pipe and the main pipeline.

Furthermore, the water supply assembly also comprises a second branch pipe connected with the main pipeline through a second shunt valve, the second branch pipe is connected with the inner container of the dish washing machine and used for extracting water in the inner container and supplying water to the first branch pipe through the main pipeline, specifically, by combining spray water of the cleaning device with a water source for cleaning tableware in the inner container, the cleaning device can extract water in the inner container when cleaning the filter, and efficient utilization of resources is realized;

before the control unit sends a water supply signal to the first pump, the control unit sends a starting signal to the second water dividing valve, and the second water dividing valve conducts the second branch pipe and the main pipeline.

The filter also comprises a plane filter screen which is arranged at the top of the water storage tank and at least partially surrounds the filter; the steam generating device to the high temperature steam of carrying in the storage water sump still is used for softening remaining impurity on plane filter screen surface, and/or, eliminates remaining bacterium on filter surface, because the plane filter screen probably also has impurity, it is right through high temperature steam the remaining impurity on plane filter screen surface softens, cooperates the impact of shower water again, has also effectually solved the problem of remaining impurity on the plane filter screen, and impurity on the plane filter screen under the impact of shower water, flows in fast in the filter.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: according to the invention, the steam cleaning structure for sterilizing and softening the filter by high-temperature steam is additionally arranged, and the steam cleaning structure is used for cleaning the filter at high temperature, so that impurities remained on the surface of the filter are softened under the action of high-temperature steam, and the cleaning device is matched to remove the softened impurities, so that the impurities remained on the filter are directionally cleaned, and the effects of sterilizing and keeping the environment clean are achieved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In the drawings:

FIG. 1 is a schematic cross-sectional view of a dishwasher in accordance with the present invention;

FIG. 2 is a schematic view of a reservoir of the present invention;

FIG. 3 is a schematic view of a filter of the present invention;

FIG. 4 is a first schematic view of the filter mechanism of the present invention in connection with a cleaning device;

FIG. 5 is a second schematic view of the filter mechanism of the present invention in connection with a cleaning device;

FIG. 6 is a third schematic view of the filter mechanism of the present invention in connection with a cleaning device;

FIG. 7 is a fourth schematic view of the filter mechanism of the present invention in connection with a cleaning device;

FIG. 8 is a logic diagram illustrating the method for cleaning the filter mechanism according to the present invention.

In the figure: 1. a water storage tank; 2. a filter; 3. a planar filter screen; 4. a first chamber; 5. a second chamber; 6. a spray zone; 7. a main pipeline; 8. a first pump; 9. a first shunt valve; 10. a first branch pipe; 11. a second water diversion valve; 12. a second branch pipe; 13. a steam belt; 14. a water inlet pipe; 15. a water pump; 16. heating a tube; 17. a delivery pipe; 18. a second pump; 19. an inner container.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In one embodiment, as shown in fig. 1 to 8, the method for cleaning a filter mechanism of a dishwasher according to the present invention comprises a water storage tank 1, and a filter mechanism disposed in the water storage tank 1; the steam generating device is used for cleaning the filtering mechanism;

the method comprises the following steps that a control unit of the dish washing machine obtains working state information of the dish washing machine, judges the working state information, and sends a starting signal to the steam generating device if the working state information meets a cleaning condition, and the steam generating device cleans a filtering mechanism.

Wherein, operating condition information includes the executive information of dish washer washing procedure, the control unit continuously acquires executive information to judge, if the washing procedure execution finishes, then the control unit judges that executive information satisfies the washing condition, to steam generating device sends start signal, acquires through the executive information to dish washer washing procedure for the in-process that the dish washer washing procedure execution finishes can realize right fast filtering mechanism's washing is avoided the remaining time of the remaining impurity on filter surface is overlength, leads to the solidification to be difficult to clear away.

In addition, after the steam generating device executes a high-temperature steam spraying program with preset duration, the control unit sends a cleaning signal to the cleaning device, the cleaning device at least sprays spraying water to the surface of the filtering mechanism to remove impurities on the softened surface of the filtering mechanism, and through the matching of the steam generating device and the cleaning device, the softening and cleaning of the impurities on the surface of the filtering mechanism are realized, and the impurities and bacteria on the surface of the filtering mechanism are effectively removed.

Meanwhile, the water level detection device also comprises a detection unit which sends water level information in the water storage tank 1 to the control unit, when the water level information meets the preset water level, the control unit sends a drainage signal to the second pump 18, and the second pump 18 discharges water in the water storage tank 1.

Further, after the second pump 18 discharges the water in the water storage tank 1, the control unit sends the start signal to the steam generating device again, and the step is performed at least once.

Further, after the starting signal sent by the control unit to the steam generating device reaches the preset times, the control unit sends a drying signal to the drying unit, and the drying unit conveys dry gas into the water storage tank 1 to dry the water storage tank 1.

In one embodiment, the invention relates to a dishwasher using the above-described method for cleaning a filter mechanism.

The cleaning device comprises a spraying port and a water supply assembly for supplying spraying water to the spraying port; the water supply assembly comprises a main pipeline 7 connected with the water storage tank 1, a first pump 8 arranged on the main pipeline 7, and a first branch pipe 10 connected with the main pipeline 7 through a first water dividing valve 9, wherein the first branch pipe 10 is connected with the spraying port; before the control unit sends a water supply signal to the first pump 8, the control unit sends an action signal to the first water dividing valve 9, and the first water dividing valve 9 conducts the first branch pipe 10 and the main pipeline 7.

Further, the water supply assembly further comprises a second branch pipe 12 connected with the main pipeline 7 through a second shunt valve 11, the second branch pipe 12 is connected with an inner container 19 of the dishwasher and used for extracting water in the inner container 19 and supplying water to the first branch pipe 10 through the main pipeline 7, specifically, by combining spray water of the cleaning device with a water source for washing tableware in the inner container 19, the cleaning device can extract water in the inner container 19 when the filter 2 is cleaned, and efficient utilization of resources is achieved; before the control unit sends a water supply signal to the first pump 8, the control unit sends an action signal to the second water dividing valve 11, and the second water dividing valve 11 conducts the second branch pipe 12 and the main pipeline 7.

The filter also comprises a plane filter screen 3 which is arranged at the top of the water storage tank 1 and at least partially surrounds the filter 2; steam generator to the high temperature steam of carrying in the tank 1 still is used for softening 3 remaining impurity in surface of plane filter screen and elimination 2 remaining bacterium in surface of filter, because plane filter screen 3 probably also has impurity, it is right through high temperature steam the remaining impurity in surface of plane filter screen 3 softens, and the impact of the sprinkler water of deuterogamying has also effectually solved the problem of remaining impurity on the plane filter screen 3, and impurity on the plane filter screen 3 flows into fast under the impact of sprinkler water in the filter 2.

In one embodiment, as shown in fig. 1 to 7, a dishwasher according to the present invention includes a reservoir 1, and a filter 2 disposed inside the reservoir 1; the plane filter screen 3 is arranged at the top of the water storage tank 1 and at least partially surrounds the filter 2; the steam generating device is used for conveying high-temperature steam to the filter 2 and/or the plane filter screen 3 and cleaning the filter 2 and/or the plane filter screen 3.

As can be seen from fig. 1 to 3, tableware to be cleaned is placed in an inner container 19 of the dishwasher, a sprayer is arranged in the inner container 19 and sprays the tableware to be cleaned, the bottom of the inner container 19 is provided with the water storage tank 1 and the filter 2 arranged in the water storage tank 1, the inner surface of the water storage tank 1, the lower surface of the planar filter screen 3 and the outer surface of the filter 2 are enclosed to form a first chamber 4 for containing shower water, and the lower part of the water storage tank 1 is provided with a second chamber 5; the filter 2 comprises a first filter screen 201 and a second filter screen 202 which are mutually sleeved, the first filter screen 201 is used for filtering impurities with larger size, the second filter screen 202 is used for cleaning impurities with smaller size and capable of discharging the dish washing machine, water flows pass through the second filter screen 202 after being filtered, and the water flows are recycled, but in application, the second filter screen 202 is usually blocked by fine impurities and cannot be cleaned in time, so that the filtering effect of the filter 2 is reduced, and the problems of insufficient water flow and water flow supply pressure of the washing water flow of the dish washing machine are solved.

Therefore, the invention provides a steam generating device for cleaning the second filter screen 202 in the filter 2, the steam generating device conveys high-temperature steam into the first chamber 4, the softened falling impurities enter the filter 2, the steam generating device capable of conveying the high-temperature steam is arranged in the first chamber 4, so that the residual impurities on the surface of the filter 2 are softened, and under a high-temperature environment, the residual impurities on the surface of the filter 2 are softened and dissolved, so that the impurities are convenient to fall by water flow impact, and the filter 2 is prevented from being blocked to influence the use of the dishwasher.

As a preferable technical solution of this embodiment, the high-temperature steam delivered by the steam generating device into the first chamber 4 is also used for softening impurities remaining on the surface of the planar filter screen 3 and eliminating bacteria remaining on the surface of the planar filter screen 3; the residual impurity on the surface of the plane filter screen 3 is softened and enters the filter 2 under the action of water flow, and because the plane filter screen 3 possibly has impurities, the problem of residual impurities on the plane filter screen 3 is effectively solved by softening high-temperature steam and matching with the impact of spray water, and the impurities on the plane filter screen 3 rapidly flow into the filter 2 under the impact of the spray water.

As shown in fig. 4 and 5, the steam generating device at least comprises steam nozzles arranged on the bottom wall of the water storage tank 1, the steam nozzles are uniformly distributed on the bottom wall of the water storage tank 1 along the circumferential direction of the filter 2 to form a steam belt 13 surrounding the filter 2, and the steam belt 13 on the bottom wall of the water storage tank 1 can form a high-temperature steam environment flowing from bottom to top to soften the impurities remained on the surface of the filter 2.

Further, equipartition is provided with in the steam area 13, the orientation 2 tangential direction of filter sprays the slant steam port of high-temperature steam, the high-temperature steam of slant steam port injection promote the flow of high-temperature steam in the first chamber 4 form evenly distributed's high-temperature steam environment around the filter 2, the setting of slant steam port has increased high-temperature steam and has been in flow in the first chamber 4 makes form dynamic high-temperature environment in the first chamber 4.

Specifically, the steam band 13 is provided with a plurality of steam nozzles, which may be direct injection or oblique injection, and the combination form or arrangement form of the steam nozzles is set according to actual needs, the cleaning of the filter 2 is improved by the arrangement of the spray band 6, so that a dynamic high-temperature environment is formed around the filter 2, and the specific arrangement and corresponding change of the steam nozzles should take into consideration the actual situation, and the specific arrangement condition of the steam nozzles is not described here, and does not represent the absence or unclear expression of the arrangement of the steam nozzles in the present invention.

As shown in fig. 6 and 7, the steam generating device at least comprises steam nozzles arranged on the side wall of the water storage tank 1, the steam nozzles are uniformly distributed on the side wall of the water storage tank 1 along the circumferential direction of the filter 2 to form a steam belt 13 arranged around the filter 2, and the steam belt 13 on the side wall of the water storage tank 1 forms high-temperature steam which impacts the surface of the filter 2 from the front side to soften the residual impurities on the surface of the filter 2;

furthermore, the steam belt 13 is an inclined steam belt 13 which is obliquely arranged from the bottom to the top of the first chamber 4 along the circumferential direction, high-temperature steam which is sprayed by the inclined steam belt 13 forms a high-temperature steam environment which is uniformly distributed around the filter 2 in the first chamber 4, and inclined steam nozzles are arranged to increase the flow of the high-temperature steam in the first chamber 4, so that a dynamic high-temperature environment is formed in the first chamber 4;

and/or, be provided with in the steam area 13, the orientation the oblique steam spout of filter 2 tangential direction injection high temperature steam, the high temperature steam of oblique steam spout injection promotes the flow of high temperature steam in first chamber 4 form evenly distributed's high temperature steam environment around the filter 2, and the setting of oblique steam spout has increased the high temperature steam and has been in the flow in first chamber 4 for form dynamic high temperature environment in first chamber 4.

Specifically, the steam band 13 is provided with a plurality of steam nozzles, which may be direct injection or oblique injection, and the combination form or arrangement form of the steam nozzles is set according to actual needs, the cleaning of the filter 2 is improved by the arrangement of the spray band 6, so that a dynamic high-temperature environment is formed around the filter 2, and the specific arrangement and corresponding change of the steam nozzles should take into consideration the actual situation, and the specific arrangement condition of the steam nozzles is not described here, and does not represent the absence or unclear expression of the arrangement of the steam nozzles in the present invention.

The steam generating device at least comprises a steam generating assembly for supplying high-temperature steam to the steam nozzle; the steam generating component comprises a water inlet pipe 14, a water suction pump 15, a heating pipe 16 and a delivery pipe 17; the water suction pump 15 acts to send water into the heating pipe 16 from the water inlet pipe 14, and after the heating pipe 16 heats the water to high-temperature steam, the water is conveyed to the steam nozzle through the conveying pipe 17.

As shown in fig. 4 to 7, the present invention provides a cleaning device for cleaning the second filter screen 202 softened by high-temperature steam in the filter 2, wherein the cleaning device sprays shower water onto the surface of the filter 2 to clean impurities remaining on the surface of the filter 2, the shower water sprayed by the cleaning device is sprayed onto the surface of the filter 2 in the first chamber 4 to wash off the impurities remaining on the surface of the filter 2, the cleaning of the surface of the filter 2 is realized by spraying the shower water onto the surface of the filter 2 in the first chamber 4, and meanwhile, the cleaned shower water can be rapidly collected into the second chamber 5 to avoid overflowing or sputtering to other areas to cause pollution.

As the preferred technical scheme of this embodiment, the orbit that belt cleaning device sprays shower water and forms in first chamber 4, at least around filter 2 is the heliciform and rises, and the heliciform rises to make the shower water right the clearance on 2 surfaces of filter is more thorough, the spray direction of shower water self and with the inside shape of first chamber 4 cooperatees, forms the rivers of vortex form, and is right 2 remaining impurity on the surface of filter carry out multi-angle tear and impact, realize right 2 even washing in surface of filter.

As a preferred technical solution of this embodiment, the spraying water sprayed by the spraying device further washes the planar filter screen 3 for cleaning up the residual impurities on the planar filter screen 3, the residual impurities on the planar filter screen 3 enter the filter 2 under the action of the spraying water, and because the planar filter screen 3 may also have impurities, the problem of the residual impurities on the planar filter screen 3 is also effectively solved through the impact of the spraying water, and the impurities on the planar filter screen 3 rapidly flow into the filter 2 under the impact of the spraying water.

As shown in fig. 4 and 5, the cleaning device at least comprises a spraying opening arranged on the bottom wall of the water storage tank 1, the spraying opening is uniformly distributed on the bottom wall of the water storage tank 1 along the circumferential direction of the filter 2 to form a spraying belt 6 arranged around the filter 2, and the spraying belt 6 on the bottom wall of the water storage tank 1 can form a cleaning water flow from bottom to top to clean the surface of the filter 2.

Further, the equipartition is provided with in the area 6 sprays, the orientation 2 tangential direction of filter sprays the mouth in the slant of shower water, the slant sprays the shower water that the mouth sprays in the formation of first cavity 4 and encircles 2 spiral rising's of filter washing rivers, and the heliciform rises to make the shower water right 2 surperficial clearance of filter is more thorough, and the rivers of vortex form are right 2 remaining impurity on the surface of filter carries out tearing and assaulting of multi-angle, and the realization is right 2 even washing on the surface of filter.

Further, the equipartition is provided with in the area 6 sprays, the orientation the mouth that sprays of 3 directions injection shower water of plane filter screen, the orientation plane filter screen 3 sets up the mouth that sprays, to plane filter screen 3 injection shower water, remaining impurity on the plane filter screen 3 gets into under the effect of shower water in the filter 2, because plane filter screen 3 probably also has impurity, through the impact of shower water, also effectual solution the problem of remaining impurity on the plane filter screen 3.

In detail, in fig. 4 and 5, the structures of the bottom wall of the water storage tank 1 are respectively marked, namely the spraying belt 6 and the steam belt 13, but these are only marks of one position and do not represent that the bottom wall of the water storage tank 1 is in such an arrangement relationship, in practical application, the spraying belt 6 and the steam belt 13 may be arranged together, the spraying ports and the steam nozzles are alternately arranged or adjacently arranged, the spraying ports for spraying water form the spraying belt 6, the steam nozzles for spraying high-temperature steam form the steam belt 13, or alternatively arranged uniformly, that is, the spraying belt 6 and the steam belt 13 are alternately arranged on the bottom wall of the water storage tank 1, and the specific arrangement condition is selected according to the practical situation, and here is only a schematic position and does not represent that the actual product is in such an arrangement relationship.

Specifically, the spray belt 6 is provided with a plurality of spray ports, the spray ports may be direct spray or oblique spray, and the combination form or arrangement form of the spray ports is set according to actual needs.

As shown in fig. 6 and 7, the cleaning device at least comprises a spraying opening arranged on the side wall of the water storage tank 1, the spraying opening is uniformly distributed on the side wall of the water storage tank 1 along the circumferential direction of the filter 2 to form a spraying belt 6 surrounding the filter 2, and the spraying belt 6 on the side wall of the water storage tank 1 can form a cleaning water flow which impacts the surface of the filter 2 in the front direction to clean the surface of the filter 2.

Furthermore, the spraying belt 6 is an inclined spraying belt 6 which is obliquely arranged from the bottom to the top of the first chamber 4 along the circumferential direction, and spraying water sprayed by the inclined spraying belt 6 forms a cleaning water flow spirally rising around the filter 2 in the first chamber 4, so that the spiral rising enables the spraying water to clean the surface of the filter 2 more thoroughly, and the spiral water flow tears and impacts impurities remained on the surface of the filter 2 at multiple angles, thereby realizing uniform cleaning of the surface of the filter 2;

and/or, it is provided with in the area 6 to spray, the orientation 2 tangential direction of filter sprays the mouth in the slant of shower water, the slant sprays the shower water that the mouth sprays the formation in first cavity 4 and encircles 2 spiral rising's of filter washing rivers, and the heliciform rises to make the shower water right 2 surperficial clearance of filter is more thorough, and the rivers of vortex form are right 2 remaining impurity in surface of filter carry out tearing and assaulting of multi-angle, realize right 2 surperficial even washing of filter.

Further, the equipartition is provided with in the area 6 sprays, the orientation the mouth that sprays of 3 directions injection shower water of plane filter screen, the orientation plane filter screen 3 sets up the mouth that sprays, to plane filter screen 3 injection shower water, remaining impurity on the plane filter screen 3 gets into under the effect of shower water in the filter 2, because plane filter screen 3 probably also has impurity, through the impact of shower water, also effectual solution the problem of remaining impurity on the plane filter screen 3.

In detail, in fig. 6 and 7, the structures of the side wall of the water storage tank 1 are respectively marked, which are respectively the spraying belt 6 and the steam belt 13, but this is merely a mark of a position and does not represent that the side wall of the water storage tank 1 is in such an arrangement relationship, in practical application, the spraying belt 6 and the steam belt 13 may be arranged together, the spraying ports and the steam nozzles are alternately arranged or adjacently arranged, the spraying ports for spraying the spraying water form the spraying belt 6, the steam nozzles for spraying the high-temperature steam form the steam belt 13, or alternatively arranged uniformly, that is, the spraying belt 6 and the steam belt 13 are alternately arranged on the side wall of the water storage tank 1, the specific arrangement condition is selected according to the practical situation, and here is only a schematic position and does not represent that the actual product is in such an arrangement relationship.

Specifically, the spray belt 6 is provided with a plurality of spray ports, the spray ports may be direct spray or oblique spray, and the combination form or arrangement form of the spray ports is set according to actual needs.

Meanwhile, the cleaning device comprises a water supply assembly for supplying spray water to the spray opening; the water supply assembly comprises a main pipeline 7 connected with the water storage tank 1 and a first pump 8 arranged on the main pipeline 7, and the main pipeline 7 is used for providing spray water for washing tableware of the dishwasher; the first branch pipe 10 is connected with the main pipeline 7 through a first water dividing valve 9, and the first branch pipe 10 is connected with the spray opening and used for providing spray water for the spray opening;

as shown in fig. 4 and 6, the water supply assembly further includes a second branch pipe 12 connected to the main pipe 7 through a second shunt valve 11, the second branch pipe 12 is connected to the inner container 19 of the dishwasher, and is used for pumping water in the inner container 19 and supplying water to the first branch pipe 10 through the main pipe 7, specifically, by combining spray water of the washing device with a water source for washing dishes in the inner container 19, the washing device can pump water in the inner container 19 when washing the filter 2, thereby achieving efficient utilization of resources.

As shown in fig. 5 and 7, the cleaning device includes a water supply assembly for supplying shower water to the shower port, the water supply assembly includes a first branch pipe 10 connected to the shower port, and a first pump 8 connected to the first branch pipe 10, the first branch pipe 10 is used for supplying the shower water to the shower port; the water inlet end of the first branch pipe 10 is at least connected with the inner container 19 of the dishwasher and used for extracting water in the inner container 19, particularly, the spraying water of the cleaning device is combined with the water source of the tableware cleaned in the inner container 19, the cleaning device can extract the water in the inner container 19 when the filter 2 is cleaned, and efficient utilization of resources is achieved.

In one embodiment, as shown in fig. 1 to 7, a dishwasher according to the present invention includes a storage tank 1, and a filter 2 disposed inside the storage tank 1; the plane filter screen 3 is arranged at the top of the water storage tank 1 and at least partially surrounds the filter 2; the device also comprises a cleaning device which is used for cleaning impurities remained on the surface of the filter 2 and/or the surface of the plane filter screen 3.

As can be seen from fig. 1 to 3, tableware to be cleaned is placed in an inner container 19 of the dishwasher, a sprayer is arranged in the inner container 19 and sprays the tableware to be cleaned, the bottom of the inner container 19 is provided with the water storage tank 1 and the filter 2 arranged in the water storage tank 1, the inner surface of the water storage tank 1, the lower surface of the planar filter screen 3 and the outer surface of the filter 2 are enclosed to form a first chamber 4 for containing shower water, and the lower part of the water storage tank 1 is provided with a second chamber 5; the filter 2 comprises a first filter screen 201 and a second filter screen 202 which are mutually sleeved, the first filter screen 201 is used for filtering impurities with larger size, the second filter screen 202 is used for cleaning impurities with smaller size and capable of discharging the dish washing machine, water flows pass through the second filter screen 202 after being filtered, and the water flows are recycled, but in application, the second filter screen 202 is usually blocked by fine impurities and cannot be cleaned in time, so that the filtering effect of the filter 2 is reduced, and the problems of insufficient water flow and water flow supply pressure of the washing water flow of the dish washing machine are solved.

Therefore, the invention provides a cleaning device for cleaning the second filter screen 202 in the filter 2, spray water sprayed by the cleaning device is sprayed to the surface of the filter 2 in the first chamber 4, the spray water flows into the second chamber 5 after passing through the surface of the filter 2, and the spray water is sprayed to the surface of the filter 2 in the first chamber 4, so that the cleaning of the surface of the filter 2 is realized, and meanwhile, the cleaned spray water can be rapidly collected into the second chamber 5, and the spray water is prevented from overflowing or splashing to other areas to cause pollution.

As the preferred technical scheme of this embodiment, the orbit that belt cleaning device sprays shower water and forms in first chamber 4, at least around filter 2 is the heliciform and rises, and the heliciform rises to make the shower water right the clearance on 2 surfaces of filter is more thorough, the spray direction of shower water self and with the inside shape of first chamber 4 cooperatees, forms the rivers of vortex form, and is right 2 remaining impurity on the surface of filter carry out multi-angle tear and impact, realize right 2 even washing in surface of filter.

As the preferred technical scheme of this embodiment, the spraying device further has a structure for spraying shower water to the planar filter screen 3, and is used for clearing up the residual impurities on the planar filter screen 3, the shower water sprayed by the spraying device also washes the planar filter screen 3, and is used for clearing up the residual impurities on the planar filter screen 3, the residual impurities on the planar filter screen 3 enter the filter 2 under the effect of the shower water, and because the planar filter screen 3 may also have impurities, the problem of the residual impurities on the planar filter screen 3 is also effectively solved through the impact of the shower water, and the impurities on the planar filter screen 3 rapidly flow into the filter 2 under the impact of the shower water.

As shown in fig. 4 and 5, the cleaning device at least comprises a spraying opening arranged on the bottom wall of the water storage tank 1, the spraying opening is uniformly distributed on the bottom wall of the water storage tank 1 along the circumferential direction of the filter 2 to form a spraying belt 6 arranged around the filter 2, and the spraying belt 6 on the bottom wall of the water storage tank 1 can form a cleaning water flow from bottom to top to clean the surface of the filter 2.

Further, the equipartition is provided with in the area 6 sprays, the orientation 2 tangential direction of filter sprays the mouth in the slant of shower water, the slant sprays the shower water that the mouth sprays in the formation of first cavity 4 and encircles 2 spiral rising's of filter washing rivers, and the heliciform rises to make the shower water right 2 surperficial clearance of filter is more thorough, and the rivers of vortex form are right 2 remaining impurity on the surface of filter carries out tearing and assaulting of multi-angle, and the realization is right 2 even washing on the surface of filter.

Further, the equipartition is provided with in the area 6 sprays, the orientation the mouth that sprays of 3 directions injection shower water of plane filter screen, the orientation plane filter screen 3 sets up the mouth that sprays, to plane filter screen 3 injection shower water, remaining impurity on the plane filter screen 3 gets into under the effect of shower water in the filter 2, because plane filter screen 3 probably also has impurity, through the impact of shower water, also effectual solution the problem of remaining impurity on the plane filter screen 3.

Specifically, the spray belt 6 is provided with a plurality of spray ports, the spray ports may be direct spray or oblique spray, and the combination form or arrangement form of the spray ports is set according to actual needs.

As shown in fig. 6 and 7, the cleaning device at least comprises a spraying opening arranged on the side wall of the water storage tank 1, the spraying opening is uniformly distributed on the side wall of the water storage tank 1 along the circumferential direction of the filter 2 to form a spraying belt 6 surrounding the filter 2, and the spraying belt 6 on the side wall of the water storage tank 1 can form a cleaning water flow which impacts the surface of the filter 2 in the front direction to clean the surface of the filter 2.

Furthermore, the spraying belt 6 is an inclined spraying belt 6 which is obliquely arranged from the bottom to the top of the first chamber 4 along the circumferential direction, and spraying water sprayed by the inclined spraying belt 6 forms a cleaning water flow spirally rising around the filter 2 in the first chamber 4, so that the spiral rising enables the spraying water to clean the surface of the filter 2 more thoroughly, and the spiral water flow tears and impacts impurities remained on the surface of the filter 2 at multiple angles, thereby realizing uniform cleaning of the surface of the filter 2;

and/or, it is provided with in the area 6 to spray, the orientation 2 tangential direction of filter sprays the mouth in the slant of shower water, the slant sprays the shower water that the mouth sprays the formation in first cavity 4 and encircles 2 spiral rising's of filter washing rivers, and the heliciform rises to make the shower water right 2 surperficial clearance of filter is more thorough, and the rivers of vortex form are right 2 remaining impurity in surface of filter carry out tearing and assaulting of multi-angle, realize right 2 surperficial even washing of filter.

Further, the equipartition is provided with in the area 6 sprays, the orientation the mouth that sprays of 3 directions injection shower water of plane filter screen, the orientation plane filter screen 3 sets up the mouth that sprays, to plane filter screen 3 injection shower water, remaining impurity on the plane filter screen 3 gets into under the effect of shower water in the filter 2, because plane filter screen 3 probably also has impurity, through the impact of shower water, also effectual solution the problem of remaining impurity on the plane filter screen 3.

Specifically, the spray belt 6 is provided with a plurality of spray ports, the spray ports may be direct spray or oblique spray, and the combination form or arrangement form of the spray ports is set according to actual needs.

As shown in fig. 4 to 7, the cleaning apparatus includes a water supply assembly that supplies shower water to the shower port; the water supply assembly comprises a main pipeline 7 connected with the water storage tank 1 and a first pump 8 arranged on the main pipeline 7, and the main pipeline 7 is used for providing spray water for washing tableware of the dishwasher; and the first branch pipe 10 is connected with the main pipeline 7 through a first water dividing valve 9, and the first branch pipe 10 is connected with the spray opening and used for providing spray water for the spray opening.

As shown in fig. 4 and 6, the water supply assembly further includes a second branch pipe 12 connected to the main pipe 7 through a second shunt valve 11, the second branch pipe 12 is connected to the inner container 19 of the dishwasher, and is used for pumping water in the inner container 19 and supplying water to the first branch pipe 10 through the main pipe 7, specifically, by combining spray water of the washing device with a water source for washing dishes in the inner container 19, the washing device can pump water in the inner container 19 when washing the filter 2, thereby achieving efficient utilization of resources.

As shown in fig. 5 and 7, the cleaning apparatus includes a water supply assembly for supplying shower water to the shower port, the water supply assembly including a first branch pipe 10 connected to the shower port, and a first pump 8 connected to the first branch pipe 10, the first branch pipe 10 being used to supply the shower water to the shower port.

Further, the water inlet end of the first branch pipe 10 is at least connected with the inner container 19 of the dishwasher and used for extracting water in the inner container 19, specifically, by combining spray water of the cleaning device with a water source of tableware cleaning in the inner container 19, the cleaning device can extract water in the inner container 19 when cleaning the filter 2, and efficient utilization of resources is realized.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.