CN115574521A - Automatic cleaning assembly, refrigerator and control method of automatic cleaning assembly - Google Patents

Abstract

The invention discloses an automatic cleaning assembly, a refrigerator and a control method of the automatic cleaning assembly, relates to the field of refrigerators, and solves the problems that time and labor are wasted, cleaning is not thorough, and a drawer is difficult to disassemble and clean when a storage area of the refrigerator is cleaned in the prior art. The automatic cleaning assembly comprises a cleaning evaporator, wherein the cleaning evaporator is connected with a freezing evaporator in a refrigeration loop in parallel, a frosting loop is formed among an outlet of the cleaning evaporator, a compressor, a condenser, a capillary tube and an inlet of the cleaning evaporator, and the surface of the cleaning evaporator is frosted; the automatic cleaning assembly further comprises a washing assembly, and the washing assembly is used for collecting defrosting water generated by defrosting of the cleaning evaporator and cleaning an area to be cleaned by utilizing the defrosting water. According to the automatic cleaning assembly, the surface of the cleaning evaporator is frosted, then the cleaning evaporator is defrosted and generates defrosting water, so that the area to be cleaned can be cleaned by using the collected defrosting water, and the purpose of automatic cleaning is achieved.

Description

Automatic cleaning assembly, refrigerator and control method of automatic cleaning assembly

Technical Field

The invention relates to the technical field of refrigerators, in particular to an automatic cleaning assembly, a refrigerator and a control method of the automatic cleaning assembly.

Background

The refrigerator is as the food refrigeration plant that the family is essential, and in the use, because reasons such as the storage of food multiclass or rotten, can cause each indoor bacterium to breed, produce oil stain, dirty, peculiar smell scheduling problem to food decay is accelerated, influences food fresh-keeping effect, is unfavorable for food long-term storage. Especially, the mother and infant refrigerator and the makeup refrigerator have higher requirements on the environment in the refrigerator room.

With the increasingly subdivided smart home requirements, in order to improve the problems of the internal storage environment of the refrigerator, in addition to the conventional sterilization technology, the visual maintenance is performed on key areas (such as an instant freezing drawer for storing meat) of the refrigerator, and residual dirt and the like are cleaned; and after long-term use, if the cleaning is carried out irregularly, the key area is easy to scale, various traces are remained, and the feeling of unclean and sanitation is given. The currently common cleaning methods are: (1) The key areas of the refrigerator are wiped manually by using rags, but the mode has the problems of time and labor waste and incomplete cleaning; (2) The drawer is taken out for washing, but the French refrigerator drawer adopts pull rod type drawing to improve damping experience due to requirements of refrigerator beauty, drawer heat preservation and drawing experience, so that the drawer cannot be easily disassembled; the mode of placing the tray drawer, the drawer takes out the easy collision of in-process and makes a sound, consequently, dismantles the drawer and washs and exist the difficulty, needs the self-cleaning function.

The technology identifies the clean state in the refrigerator in real time through an odor sensor, reminds a user through intelligent equipment such as a display, starts a sterilization function through a built-in processor, then starts a spray head to spray water, and outputs the water through a water tank. Yet another prior art discloses a method for cleaning a refrigerator by adding water from the top, but the technique requires manual water addition, and the refrigerator cannot be cleaned as a whole, and the whole water path is complicated. Still another prior art discloses a method for cleaning a refrigerator condenser, which utilizes defrosted water inside the refrigerator to flush the condenser outside the refrigerator, but the technology is used for cleaning the condenser outside the refrigerator, and the user experience is not intuitive enough.

Therefore, it is an urgent technical problem to provide a method and apparatus for automatically cleaning a storage area of a refrigerator.

Disclosure of Invention

One of the purposes of the invention is to provide an automatic cleaning assembly, which solves the technical problems of time and labor waste, incomplete cleaning and difficulty in detaching and cleaning a drawer when a storage area of a refrigerator is cleaned in the prior art. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

In order to realize the purpose, the invention provides the following technical scheme:

the automatic cleaning assembly comprises a cleaning evaporator, wherein the cleaning evaporator is connected with a freezing evaporator in a refrigeration loop in parallel, a frosting loop is formed among an outlet of the cleaning evaporator, a compressor, a condenser, a capillary tube and an inlet of the cleaning evaporator, and the surface of the cleaning evaporator is frosted; the automatic cleaning assembly further comprises a flushing assembly, and the flushing assembly is used for collecting the defrosting water generated by defrosting of the cleaning evaporator and cleaning an area to be cleaned by utilizing the defrosting water.

According to a preferred embodiment, the automatic washing assembly further comprises a switching valve, the switching valve is arranged at the inlets of the cleaning evaporator and the freezing evaporator, the switching valve has a first state and a second state, and when the switching valve is in the first state, the freezing evaporator is communicated with the capillary tube; when the switching valve is in a second state, the cleaning evaporator is communicated with the capillary tube.

According to a preferred embodiment, the automatic cleaning assembly further comprises a check valve, one end of the check valve is connected between the switching valve and the cleaning evaporator, the other end of the check valve is connected between the switching valve and the freezing evaporator, and the refrigerant flow direction in the check valve is as follows: from the inlet end of the cleaning evaporator to the inlet end of the freezing evaporator.

According to a preferred embodiment, the flushing assembly comprises a water tank located above the area to be cleaned with a first preset height difference from the area to be cleaned, the water tank being configured to collect defrosting water generated by defrosting of the cleaning evaporator and to clean the area to be cleaned with the defrosting water.

According to a preferred embodiment, the automatic cleaning assembly further comprises a defrosting device and a water receiving tray, wherein the defrosting device is used for defrosting the cleaning evaporator, the water receiving tray is arranged below the cleaning evaporator and is communicated with the water tank, and the water receiving tray is used for collecting defrosting water generated by defrosting of the cleaning evaporator.

According to a preferred embodiment, the water tank is provided with a water outlet pipe, the water outlet pipe is arranged above the area to be cleaned, a second preset height difference is formed between the water outlet pipe and the area to be cleaned, a control valve is arranged at a water outlet of the water tank, the control valve is in an open state and a closed state, and when the control valve is in the open state, water in the water tank flows into the area to be cleaned through the water outlet pipe.

According to a preferred embodiment, the flushing assembly further comprises a water level sensor disposed in the water tank for detecting a water level in the water tank, and the control valve is in an open state or a closed state based on a detection result of the water level sensor, and the switching valve is in a first state or a second state based on a detection result of the water level sensor.

According to a preferred embodiment, the water tank is further provided with an overflow pipe, the overflow pipe is connected with the water receiving box of the refrigerator, and when the water level in the water tank exceeds a preset value, the water in the water tank is discharged through the overflow pipe.

According to a preferred embodiment, the automatic cleaning assembly further comprises a drain pipe, the drain pipe is arranged in the area to be cleaned and is connected with the refrigerator water receiving box, a drain valve is further arranged at a water outlet of the area to be cleaned and has an open state and a closed state, and when the drain valve is in the open state, the drain pipe is used for discharging water in the area to be cleaned.

According to a preferred embodiment, the area to be cleaned is arranged obliquely, and the drain pipe is located at the lower side of the area to be cleaned.

According to a preferred embodiment, the automatic cleaning assembly further comprises a humidity sensor, the humidity sensor is arranged in the room where the cleaning evaporator is located, and the humidity sensor is used for monitoring the humidity in the room where the cleaning evaporator is located.

According to a preferred embodiment, the automatic washing assembly further comprises a vibration device, the vibration device is arranged at the area to be washed, and the vibration device is used for generating vibration to the area to be washed.

According to a preferred embodiment, the automatic cleaning assembly further comprises a heater and a sterilization device, the heater and the sterilization device are arranged above the area to be cleaned, and the heater and the sterilization device are used for drying and sterilizing the area to be cleaned.

The automatic cleaning component provided by the invention at least has the following beneficial technical effects:

the automatic cleaning assembly comprises a cleaning evaporator, wherein the cleaning evaporator is connected with a freezing evaporator in a refrigeration loop in parallel, a frosting loop is formed among an outlet of the cleaning evaporator, a compressor, a condenser, a capillary tube and an inlet of the cleaning evaporator, and the surface of the cleaning evaporator is frosted; the automatic cleaning assembly can be used for cleaning the area to be cleaned by using the collected defrosting water, so that the aim of automatic cleaning is fulfilled, key areas of a refrigerator, such as a drawer which is frozen instantly can be kept sanitary and clean, the problems of time and labor waste and incomplete cleaning caused by manual cleaning in the prior art are solved, and the problems that the drawer is taken out and washed and the drawer is difficult to disassemble and clean in the prior art are solved.

The automatic cleaning assembly can realize regular cleaning or intelligent cleaning, and solves the technical problems of time and labor waste, incomplete cleaning and difficulty in detaching and cleaning the drawer when the storage area of the refrigerator is cleaned in the prior art.

The second purpose of the invention is to provide a refrigerator.

The refrigerator provided by the invention comprises the automatic cleaning assembly in any technical scheme of the invention.

The refrigerator provided by the invention at least has the following beneficial technical effects:

the refrigerator comprises the automatic cleaning assembly in any technical scheme, and the automatic cleaning assembly can realize regular cleaning or intelligent cleaning, so that key areas of the refrigerator, such as the instant freezing drawer, can be kept sanitary and clean, and the use experience of a user is improved.

A third object of the present invention is to provide a control method of an automatic cleaning assembly.

The control method of the automatic cleaning assembly in any technical scheme of the invention comprises the following steps:

acquiring the cleaning state of an area to be cleaned;

when the area to be cleaned reaches the cleaning state, the water level in the flushing assembly is detected, and when the water level in the flushing assembly reaches the preset height, the control valve is controlled to be in an open state, and the area to be cleaned is cleaned by using the water in the flushing assembly.

According to a preferred embodiment, when the water level in the flushing assembly does not reach the preset height, the method further comprises the following steps:

acquiring the humidity in a room where the cleaning evaporator is located;

when the humidity in the chamber where the cleaning evaporator is located reaches a preset humidity, controlling the switching valve to be in a second state, and enabling the surface of the cleaning evaporator to be frosted;

when the cleaning evaporator reaches the first preset working time, the defrosting device is controlled to be started and is utilized to defrost the cleaning evaporator, and defrosting water generated by defrosting enters the flushing assembly.

According to a preferred embodiment, when the humidity in the room where the cleaning evaporator is located does not reach the preset humidity, the method further comprises the following steps:

and controlling a door body or a drawer of the chamber where the cleaning evaporator is positioned to be in an open state, and improving the humidity of the chamber where the cleaning evaporator is positioned by utilizing outside air, or supplementing water into the chamber where the cleaning evaporator is positioned, and enabling the humidity in the refrigerator to reach preset humidity.

According to a preferred embodiment, the cleaning of the area to be cleaned comprises the following steps:

controlling the control valve to be in an open state, and cleaning the area to be cleaned by using water stored in the water tank;

controlling the vibration device to be in an opening state when the time length of the control valve in the opening state exceeds a second preset time length;

after the area to be cleaned is cleaned, controlling the drain valve to be in an open state, and discharging the sewage in the area to be cleaned through the drain pipe;

and controlling the heater and the sterilizing device to be in an opening state, and drying and sterilizing the area to be cleaned.

The control method of the automatic cleaning assembly provided by the invention at least has the following beneficial technical effects:

according to the control method of the automatic cleaning assembly, the cleaning state of the area to be cleaned is obtained, the water level in the flushing assembly is detected when the area to be cleaned reaches the cleaning state, the control valve is controlled to be in the open state when the water level in the flushing assembly reaches the preset height, and the area to be cleaned is cleaned by using the water in the flushing assembly, so that the purpose of automatic cleaning can be achieved, key areas of a refrigerator, such as a flash freezing drawer, are kept sanitary and clean, the problems that time and labor are wasted and the cleaning is incomplete due to manual cleaning in the prior art are solved, and the problems that the drawer is taken out and cleaned and the drawer is difficult to disassemble and clean in the prior art are also solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a prior art refrigeration assembly for a refrigerator;

FIG. 2 is a schematic view of a preferred embodiment of a refrigeration assembly of the refrigerator of the present invention;

FIG. 3 is a schematic view illustrating a flow direction of a refrigerant when the switching valve is in a first state;

FIG. 4 is a schematic view illustrating a flow direction of a refrigerant when the switching valve is in a second state;

FIG. 5 is a schematic view of a preferred embodiment of the self-cleaning assembly of the present invention;

FIG. 6 is a schematic view of the distribution of a preferred embodiment of the storage area of the refrigerator of the present invention;

FIG. 7 is a flow chart of a preferred embodiment of a method of controlling the automatic cleaning assembly of the present invention;

FIG. 8 is a flow chart of another preferred embodiment of a method for controlling the automatic cleaning assembly of the present invention.

In the figure: 101. cleaning the evaporator; 102. a refrigeration evaporator; 103. a compressor; 104. a condenser; 105. a capillary tube; 106. a switching valve; 107. a one-way valve; 108. a water tank; 109. a water pan; 110. a water outlet pipe; 111. a control valve; 112. an overflow pipe; 113. a drain pipe; 114. an anti-condensation pipe; 115. a filter; 201. a refrigerating chamber; 202. a quick-freezing drawer; 203. a freezing drawer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The automatic cleaning assembly, the refrigerator and the control method of the automatic cleaning assembly of the present invention will be described in detail with reference to fig. 1 to 8 and embodiments 1 to 3 of the specification.

Example 1

This example illustrates the automatic cleaning assembly of the present invention in detail.

The automatic cleaning assembly of the embodiment comprises a cleaning evaporator 101, wherein the cleaning evaporator 101 is connected with a freezing evaporator 102 in a refrigeration loop in parallel, a frosting loop is formed among an outlet of the cleaning evaporator 101, a compressor 103, a condenser 104, a capillary tube 105 and an inlet of the cleaning evaporator 101, and the surface of the cleaning evaporator 101 is frosted; the automatic washing assembly further includes a rinsing assembly for collecting defrost water generated by defrosting the cleaning evaporator 101 and washing an area to be washed using the defrost water, as shown in fig. 2.

Fig. 1 and 2 show schematic views of a prior art and inventive refrigerator cooling assembly, respectively. As shown in fig. 1, the refrigeration assembly of the related art refrigerator includes a freezing evaporator 102, a compressor 103, a condenser 104, a condensation preventing pipe 114, a filter 115 and a capillary tube 105, and a refrigeration circuit is formed between an outlet of the freezing evaporator 102, the compressor 103, the condenser 104, the condensation preventing pipe 114, the filter 115, the capillary tube 105 and an inlet of the freezing evaporator 102. As shown in fig. 2, the cleaning evaporator 101 is connected in parallel with the freezing evaporator 102 in the refrigeration circuit, and a frost formation loop may further include a condensation preventing pipe 114 and a filter 115, so that a frost formation loop is formed among the outlet of the cleaning evaporator 101, the compressor 103, the condenser 104, the condensation preventing pipe 114, the filter 115, the capillary tube 105, and the inlet of the cleaning evaporator 101. Specifically, when the cleaning evaporator 101 is operated, the temperature of the refrigerant flowing through the cleaning evaporator 101 is low, so that the air passing through the cleaning evaporator is cooled and condensed, and then is frozen.

The automatic cleaning assembly of the embodiment can be used for frosting the surface of the cleaning evaporator 101, then defrosting the cleaning evaporator 101 and generating defrosting water, so that the area to be cleaned can be cleaned by using the collected defrosting water, the automatic cleaning purpose is realized, a key area of a refrigerator can be kept sanitary and clean if a drawer is frozen instantly, the problems of time and labor waste and incomplete cleaning caused by manual cleaning in the prior art are avoided, the drawer is taken out and washed in the prior art, and the problem of difficulty in disassembling and cleaning the drawer is also avoided. The automatic cleaning assembly can realize regular cleaning or intelligent cleaning, and solves the problems that in the prior art, a refrigerator storage area is cleaned, time and labor are wasted, cleaning is not thorough, and a drawer is detached and cleaned difficultly.

According to a preferred embodiment, the automatic washing assembly further comprises a switching valve 106, the switching valve 106 is disposed at the inlet of the cleaning evaporator 101 and the freezing evaporator 102, and the switching valve 106 has a first state and a second state, when the switching valve 106 is in the first state, the freezing evaporator 102 is in communication with the capillary tube 105; when the switching valve 106 is in the second state, the cleaning vaporizer 101 and the capillary 105 communicate with each other as shown in fig. 2 to 4. Preferably, the automatic washing assembly further includes a check valve 107, one end of the check valve 107 is connected between the switching valve 106 and the cleaning evaporator 101, and the other end is connected between the switching valve 106 and the freezing evaporator 102, and the refrigerant flow direction in the check valve 107 is: flows from the inlet end of the cleaning evaporator 101 to the inlet end of the freezing evaporator 102 as shown in fig. 2 to 4. Fig. 3 and 4 are schematic diagrams illustrating the flow direction of the refrigerant when the switching valve 106 is in the first state and the second state, respectively, as shown in fig. 3, when the switching valve 106 is in the first state, the refrigeration evaporator 102 is operated, and the refrigerant flows through the outlet of the refrigeration evaporator 102, the compressor 103, the condenser 104, the condensation preventing pipe 114, the filter 115, the capillary tube 105, the switching valve 106 and the inlet of the refrigeration evaporator 102, so that the refrigeration assembly refrigerates and provides cold air for the compartment of the refrigerator; when the switching valve 106 is in the first state, the refrigerant does not flow through the cleaning evaporator due to the function of the check valve 107, so that only the freezing evaporator 102 obtains the refrigerant, and the refrigeration effect of the refrigerator is not affected; as shown in fig. 4, when the switching valve 106 is in the second state, the cleaning evaporator 101 and the freezing evaporator 102 both work, the refrigerant passing through the switching valve 106 enters the cleaning evaporator 101, and due to the action of the check valve 107, the refrigerant can simultaneously enter the freezing evaporator 102 through the check valve 107, so that the refrigeration loop and the frosting loop can be simultaneously communicated, and thus the refrigeration assembly can refrigerate and frost the cleaning evaporator 101. The arrows in fig. 3 and 4 show the refrigerant flow direction.

According to a preferred embodiment, the flushing assembly comprises a water tank 108, the water tank 108 being located above the area to be cleaned with a first preset height difference from the area to be cleaned, the water tank 108 being adapted to collect defrost water generated by defrosting the cleaning evaporator 101 and to clean the area to be cleaned with the defrost water, as shown in fig. 5. The first preset height difference may be determined based on the height of the refrigerator and the actual demand. In the automatic cleaning assembly of the preferred technical scheme of this embodiment, the water tank 108 is located above the area to be cleaned and has a first preset height difference with the area to be cleaned, so that the height difference between the water tank 108 and the area to be cleaned and the gravity of water can be utilized to increase the water pressure, and further the impact force on the area to be cleaned is increased.

According to a preferred embodiment, the automatic washing assembly further comprises a defrosting device for defrosting the cleaning evaporator 101, and a water pan 109, wherein the water pan 109 is disposed under the cleaning evaporator 101, the water pan 109 is communicated with the water tank 108, and the water pan 109 is used for collecting defrosting water generated by defrosting the cleaning evaporator 101, as shown in fig. 5. Preferably, the defrosting device is, for example, an electrically heated defrosting device, and the defrosting device is installed at the bottom of the cleaning evaporator 101. In the automatic cleaning assembly according to the preferred technical scheme of this embodiment, heat generated by the electric heating defrosting device during operation can be radiated to the cleaning evaporator 101, so that frost in the cleaning evaporator 101 is melted and flows into the lower water pan 109, and then flows into the water tank 108 through a pipeline between the water pan 109 and the water tank 108 to be collected, thereby preventing the water in the water pan 109 from overflowing due to excessive water.

According to a preferred embodiment, the water tank 108 is provided with a water outlet pipe 110, the water outlet pipe 110 is arranged above the area to be cleaned and has a second preset height difference with the area to be cleaned, a control valve 111 is arranged at the water outlet of the water tank 108, the control valve 111 has an open state and a closed state, and when the control valve 111 is in the open state, water in the water tank 108 flows into the area to be cleaned through the water outlet pipe 110, as shown in fig. 5. The second preset height difference may be determined based on the refrigerator height and actual demand. The automatic cleaning assembly of the preferred embodiment can control the water state in the water tank 108 through the control valve 111. Specifically, when the control valve 111 is in an open state, water in the water tank 108 flows into the area to be cleaned through the water outlet pipe 110, so that the area to be cleaned is cleaned; when the area to be cleaned is not required to be cleaned, the control valve 111 is closed, so that the water in the water tank 108 cannot flow out through the water outlet pipe 110.

According to a preferred embodiment, the flushing assembly further comprises a water level sensor arranged in the water tank 108 for detecting a water level in said water tank 108, and the control valve 111 is in an open state or a closed state based on the detection result of the water level sensor, and the switching valve 106 is in a first state or a second state based on the detection result of the water level sensor. Preferably, the level sensor is located 20-300 mm high from the bottom of the water tank 108, and more preferably, the level sensor is located 150mm high from the bottom of the water tank 108, so as to ensure that there is a sufficient amount of water in the water tank 108 for flushing the area to be cleaned, while also allowing sufficient flushing pressure of the water in the water tank 108. In the automatic cleaning assembly of the preferred embodiment, the states of the control valve 111 and the switching valve 106 can be controlled by the detection result of the water level sensor, so that the valves of the automatic cleaning assembly can be accurately controlled. Specifically, when the detection result of the water level sensor exceeds the preset water level, the control valve 111 is in an open state, so that the area to be cleaned can be cleaned by using water in the water tank 108; when the detection result of the water level sensor does not exceed the preset water level, the control valve 111 is in a closed state, and simultaneously, when the control switching valve 106 is in a second state, the cleaning evaporator 101 works at the moment, so that the cleaning evaporator 101 can be frosted, and then the water in the water tank 108 is increased by defrosting the cleaning evaporator 101.

According to a preferred embodiment, the water tank 108 is further provided with an overflow pipe 112, the overflow pipe 112 is connected to a water receiving box of the refrigerator, and when the water level in the water tank 108 exceeds a preset value, the water in the water tank 108 is discharged through the overflow pipe 112, as shown in fig. 5. Preferably, the overflow pipe 112 is provided at an upper position of the water tank 108. Preferably, the overflow pipe 112 is connected to a water receiving box outside the refrigerator through a foaming tank bladder. In the automatic cleaning assembly according to the preferred embodiment of the present invention, the water tank 108 is further provided with an overflow pipe 112, so that when the water level in the water tank 108 is too high, the water in the water tank 108 can be drained through the overflow pipe 112, thereby preventing the water in the water tank 108 from overflowing due to too much water.

According to a preferred embodiment, the automatic cleaning assembly further comprises a drain pipe 113, the drain pipe 113 is disposed in the region to be cleaned, the drain pipe 113 is connected to the refrigerator water receiver, and a drain valve is further disposed at the water outlet of the region to be cleaned, the drain valve has an open state and a closed state, and when the drain valve is in the open state, the drain pipe 113 is used for draining water in the region to be cleaned, as shown in fig. 5. Preferably, the area to be cleaned is arranged obliquely, and the drain pipe 113 is located at a lower side of the area to be cleaned. More preferably, the angle of inclination of the area to be cleaned is, for example, 5 °. The automatic cleaning component of the preferred technical scheme of this embodiment sets up the drain pipe 113 waiting to clean the region department, and the delivery port department of waiting to clean the region still is provided with the drain valve, and after the washing is accomplished, through opening the drain valve, the sewage of waiting to clean the region can be discharged through the drain pipe 113. Furthermore, the drain pipe 113 is located at the lower side of the region to be cleaned, which is beneficial to discharging all the sewage in the region to be cleaned.

According to a preferred embodiment, the automatic washing assembly further comprises a humidity sensor, which is disposed in the compartment in which the cleaning evaporator 101 is located, and which is used to monitor the humidity in the compartment in which the cleaning evaporator 101 is located. Preferably, the compartment in which the clean evaporator 101 is located is a refrigerating compartment 201. In the automatic cleaning assembly adopting the preferred technical scheme of the embodiment, the humidity in the room where the cleaning evaporator 101 is located can be monitored through the humidity sensor, and when the humidity in the room where the cleaning evaporator 101 is located reaches the preset humidity, the surface of the cleaning evaporator 101 can be frosted; when the humidity in the room where the cleaning evaporator 101 is located does not reach the preset humidity, the humidity in the room where the cleaning evaporator 101 is located can be increased by introducing high-humidity air in the external environment or supplementing moisture to the room where the cleaning evaporator 101 is located, so that the surface of the cleaning evaporator 101 is frosted.

According to a preferred embodiment, the automatic cleaning assembly further comprises a vibration device, which is arranged at the area to be cleaned and which is used to vibrate the area to be cleaned. Preferably, the vibration device is arranged at the bottom of the area to be cleaned. Preferably, the vibration device is a vibration motor, such as a mobile phone vibration motor. The self-cleaning subassembly of the preferred technical scheme of this embodiment, when utilizing the water washing in the water tank 108 to wait to wash the region, simultaneously through vibrating device production vibration, can make and attach to and more easily drop in the attachment that waits to wash on the region to can improve and wait to wash regional cleaning performance.

According to a preferred embodiment, the automatic washing assembly further comprises a heater and a sterilizing device, the heater and the sterilizing device are arranged above the area to be washed, and the heater and the sterilizing device are used for drying and sterilizing the area to be washed. Preferably, the heater and the sterilizing device are arranged on top of the area to be cleaned. Preferably, the heater is an aluminum foil heater, for example, and the sterilization device is a sterilization negative ion device, for example. Both the aluminum foil heater and the sterilizing negative ion device can be products in the prior art. The automatic cleaning assembly of the preferred technical scheme of this embodiment can dry the water of waiting to wash the region through the heater, can treat through sterilizing equipment and wash the region and carry out germicidal treatment to can further improve the cleaning performance of waiting to wash the region.

Example 2

This embodiment will explain the refrigerator of the present invention in detail.

The refrigerator of this embodiment includes the self-cleaning subassembly of any one of embodiment 1. The rest of the components of the refrigerator can be the same as those of the prior art, specifically, the refrigerator comprises a refrigerator body and a refrigeration assembly, wherein the refrigerator body is provided with a refrigerating chamber 201, an instant freezing drawer 202 and a freezing drawer 203, and the refrigeration assembly is described in embodiment 1 and is not described herein again, as shown in fig. 6.

The refrigerator of this embodiment, including the self-cleaning subassembly of any one of embodiment 1 technical scheme, because the self-cleaning subassembly can realize regularly washing or intelligent washing to can make refrigerator key region, for example, freeze the drawer immediately and keep sanitary, clean, improve user's use experience.

Example 3

This embodiment describes the control method of the automatic cleaning module according to the present invention in detail.

Fig. 7 shows a flow chart of a preferred embodiment of the method for controlling the automatic cleaning assembly according to any one of the embodiments 1. As shown in fig. 1, the method for controlling an automatic cleaning assembly according to any one of embodiments 1 includes the steps of:

step 1: the cleaning state of the area to be cleaned is acquired. Specifically, the cleaning state of the area to be cleaned may be manually input by a user or may be acquired through a preset time. For example, every 10 days.

Step 2: when the area to be cleaned reaches the cleaning state, the water level in the flushing assembly is detected, and when the water level in the flushing assembly reaches the preset height, the control valve 111 is controlled to be in an open state, and the area to be cleaned is cleaned by using the water in the flushing assembly.

Specifically, the step of cleaning the area to be cleaned comprises the following steps:

controlling the control valve 111 to be in an open state, and cleaning the area to be cleaned by using the water stored in the water tank 108; when the time length of the control valve 111 in the open state exceeds a second preset time length, controlling the vibration device to be in the open state; after the cleaning of the area to be cleaned is finished, controlling the drain valve to be in an open state, and discharging the sewage in the area to be cleaned through the drain pipe 113; and controlling the heater and the sterilizing device to be in an opening state, and drying and sterilizing the area to be cleaned.

According to the control method of the automatic cleaning assembly, the cleaning state of the area to be cleaned is obtained, when the area to be cleaned reaches the cleaning state, the water level in the flushing assembly is detected, when the water level in the flushing assembly reaches the preset height, the control valve 111 is controlled to be in the open state, and the step of cleaning the area to be cleaned by using water in the flushing assembly is carried out, so that the purpose of automatic cleaning can be achieved, key areas of a refrigerator, such as a flash freezing drawer, can be kept sanitary and clean, the problems that time and labor are wasted and the cleaning is not complete due to manual cleaning in the prior art are solved, and the problems that in the prior art, the drawer is taken out and cleaned, and the drawer is difficult to disassemble and clean are also solved.

According to a preferred embodiment, when the water level in the flushing assembly does not reach the preset height, the method further comprises the following steps:

the humidity in the room where the cleaning evaporator 101 is located is obtained. Specifically, the humidity in the chamber where the cleaning evaporator 101 is located is measured by a humidity sensor.

When the humidity in the chamber where the cleaning evaporator 101 is located reaches the preset humidity, the switching valve 106 is controlled to be in the second state, and the surface of the cleaning evaporator 101 is frosted. Specifically, the preset humidity is, for example, 50%.

When the cleaning evaporator 101 reaches the first preset working time, the defrosting device is controlled to be started and utilized to defrost the cleaning evaporator 101, and defrosting water generated by defrosting enters the flushing assembly. Specifically, the first preset working time period is a time period when the pipe temperature of the cleaning evaporator 101 is less than-5 ℃ so as to ensure the frosting effect of the cleaning evaporator 101.

In the control method according to the preferred technical solution of this embodiment, when the water level in the rinsing assembly does not reach the preset height, the switching valve 106 is controlled to be in the second state, so that the cleaning evaporator 101 works, and the high-humidity air in the chamber where the cleaning evaporator 101 is located is utilized to perform frosting, and then defrosting is performed, so as to supplement the water level in the rinsing assembly, which means that the requirement of the rinsing water level is met.

According to a preferred embodiment, when the humidity in the room where the cleaning evaporator 101 is located does not reach the preset humidity, the method further comprises the following steps: controlling a door body or a drawer of a compartment where the cleaning evaporator 101 is located to be in an open state, and improving the humidity of the compartment where the cleaning evaporator 101 is located by using outside air, or supplementing water into the compartment where the cleaning evaporator 101 is located, and enabling the humidity in the refrigerator to reach a preset humidity.

In the control method according to the preferred embodiment of the present invention, when the humidity in the room where the cleaning evaporator 101 is located does not reach the preset humidity, the humidity in the room where the cleaning evaporator 101 is located can be increased by introducing external high humidity air or supplementing water to the room where the cleaning evaporator 101 is located, so as to reach the preset humidity.

Fig. 8 is a flow chart showing another preferred embodiment of the control method of the automatic cleaning assembly of the present embodiment. The automatic cleaning of the instant freezer drawer 202 will be described as an example. As shown in fig. 8:

the cleaning evaporator 101 is disposed in the refrigerating compartment 201. Because the food materials such as fruit vegetables are generally deposited to walk-in 201, walk-in 201 generally has great humidity, when needs self-cleaning, at first whether satisfy the requirement through the water level sensor detection water in the water tank 108 of water tank 108 (the too low water level probably has the washing water shortage, washes unclean problem), if satisfy the water level requirement, control valve 111 is opened, carry out and wash the flow, wait to wash the aluminium foil heater at regional top after washing the completion and open the stoving, degerming anion device puts into operation simultaneously.

If the water level in the water tank 108 is insufficient, a water replenishing process is executed, specifically, humidity is detected through a humidity sensor, if the relative humidity is larger than 50%, the switching valve 106 is switched to the second state, the cleaning evaporator 101 is put into operation, the cleaning evaporator 101 enables air passing through the cleaning evaporator to be cooled and condensed, and then frost is formed, when the low-temperature continuous operation of the cleaning evaporator is detected for a certain time, electric heating is started to defrost, the fan is reversely rotated, hot air is blown to the cleaning evaporator 101, the frost is melted, the frost water falls into the water receiving tray 109, and the frost water in the water receiving tray 109 enters the water tank 108 through a pipeline to be accumulated. During defrosting, the switching valve 106 is switched to the first state, and the cleaning evaporator 101 stops operating.

If the relative humidity in the refrigerating chamber 201 is detected to be low when the cleaning evaporator 101 works, a refrigerating door (a fan) or a refrigerating drawer is automatically opened and pushed out, and the humidity of the external high-humidity air is used as supplement to enable the cleaning evaporator 101 to work normally. If the environmental conditions are too dry at this time, and water cannot be produced, words such as 'dry, please place water cup' and the like are directly displayed on the display of the refrigerator to remind the user to place a water source in the refrigerating chamber 201. When the water volume in the water tank 108 meets the minimum water level line, the cleaning evaporator 101 can stop frosting, otherwise, the circulating water making supplement is continuously carried out.

Through the drawer after automatic cleaning, can let blood water, water stain etc. of reserving before cleaned away, give the better experience of user. Of course, the user is required to remove the ingredients of the flash freezer drawer 202 prior to cleaning. Or a camera is added, and when the situation that the instant freezing drawer 202 is empty for a period of time is monitored, the automatic cleaning function is automatically started. The automatic cleaning function can also be used for cleaning for multiple times in a segmented mode, such as 3 times of periodic cleaning in one night.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also 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 meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (18)

1. An automatic cleaning assembly, characterized by comprising a cleaning evaporator (101), wherein the cleaning evaporator (101) is connected with a freezing evaporator (102) in a refrigeration circuit in parallel, a frosting circuit is formed among an outlet of the cleaning evaporator (101), a compressor (103), a condenser (104), a capillary tube (105) and an inlet of the cleaning evaporator (101), and the surface of the cleaning evaporator (101) is frosted;

the automatic cleaning assembly further comprises a flushing assembly, and the flushing assembly is used for collecting defrosting water generated by defrosting of the cleaning evaporator (101) and cleaning an area to be cleaned by using the defrosting water.

2. The automatic wash assembly according to claim 1, further comprising a switching valve (106), the switching valve (106) being arranged at the inlet of the cleaning evaporator (101) and the freezing evaporator (102), and the switching valve (106) having a first state and a second state,

when the switching valve (106) is in a first state, the refrigeration evaporator (102) is communicated with the capillary tube (105); when the switching valve (106) is in a second state, the cleaning evaporator (101) is communicated with the capillary tube (105).

3. The automatic washing assembly according to claim 2, further comprising a check valve (107), wherein one end of the check valve (107) is connected between the switching valve (106) and the cleaning evaporator (101), the other end of the check valve (107) is connected between the switching valve (106) and the freezing evaporator (102), and the refrigerant flow direction in the check valve (107) is: from the inlet end of the cleaning evaporator (101) to the inlet end of the freezing evaporator (102).

4. The automatic washing assembly according to claim 2, characterized in that said flushing assembly comprises a water tank (108), said water tank (108) being located above the area to be washed and having a first preset height difference with respect to the area to be washed, said water tank (108) being adapted to collect the defrost water generated by defrosting said cleaning evaporator (101) and to wash the area to be washed with said defrost water.

5. The automatic washing assembly according to claim 4, characterized by further comprising a defrosting device and a water pan (109), wherein the defrosting device is used for defrosting the cleaning evaporator (101), the water pan (109) is arranged below the cleaning evaporator (101), the water pan (109) is communicated with the water tank (108), and the water pan (109) is used for collecting defrosting water generated by defrosting the cleaning evaporator (101).

6. The automatic cleaning assembly according to claim 4, wherein the water tank (108) is provided with a water outlet pipe (110), the water outlet pipe (110) is arranged above the area to be cleaned and has a second preset height difference with the area to be cleaned, a control valve (111) is arranged at the water outlet of the water tank (108), the control valve (111) has an open state and a closed state, and when the control valve (111) is in the open state, the water in the water tank (108) flows into the area to be cleaned through the water outlet pipe (110).

7. The automatic washing assembly according to claim 6, characterized in that the flushing assembly further comprises a water level sensor provided in the water tank (108) for detecting a water level in the water tank (108), and the control valve (111) is in an open state or a closed state based on a detection result of the water level sensor, and the switching valve (106) is in a first state or a second state based on a detection result of the water level sensor.

8. The automatic washing assembly as claimed in claim 4, wherein an overflow pipe (112) is further provided on the water tank (108), the overflow pipe (112) is connected to a water receiving box of a refrigerator, and when the water level in the water tank (108) exceeds a preset value, the water in the water tank (108) is drained through the overflow pipe (112).

9. The automatic cleaning assembly according to claim 1, further comprising a drain pipe (113), wherein the drain pipe (113) is disposed in the region to be cleaned, the drain pipe (113) is connected to the water receiving box of the refrigerator, and a drain valve is further disposed at the water outlet of the region to be cleaned, the drain valve has an open state and a closed state, and when the drain valve is in the open state, the drain pipe (113) is used for draining water in the region to be cleaned.

10. The automatic washing assembly according to claim 9, characterized in that the area to be washed is arranged obliquely and the drain pipe (113) is located at the lower side of the area to be washed.

11. The automatic wash assembly according to claim 1, further comprising a humidity sensor disposed in the compartment in which the cleaning evaporator (101) is located and configured to monitor the humidity in the compartment in which the cleaning evaporator (101) is located.

12. The automatic washing assembly as claimed in claim 1, further comprising a vibration device disposed at the area to be washed and configured to vibrate the area to be washed.

13. The automatic cleaning assembly of claim 1, further comprising a heater and a sterilizing device, wherein the heater and the sterilizing device are disposed above the area to be cleaned, and the heater and the sterilizing device are used for drying and sterilizing the area to be cleaned.

14. A refrigerator comprising the automatic washing assembly of any one of claims 1 to 13.

15. A method of controlling an automatic cleaning assembly according to any one of claims 1 to 13, characterized by comprising the steps of:

acquiring the cleaning state of an area to be cleaned;

when the area to be cleaned reaches the cleaning state, the water level in the flushing assembly is detected, and when the water level in the flushing assembly reaches the preset height, the control valve (111) is controlled to be in an open state, and the area to be cleaned is cleaned by using water in the flushing assembly.

16. The method for controlling an automatic washing assembly according to claim 15, wherein when the water level in the washing assembly does not reach a preset level, further comprising the steps of:

acquiring the humidity in a room where the cleaning evaporator (101) is located;

when the humidity in the room where the cleaning evaporator (101) is located reaches a preset humidity, controlling the switching valve (106) to be in a second state, and enabling the surface of the cleaning evaporator (101) to frost;

when the cleaning evaporator (101) reaches a first preset working time, the defrosting device is controlled to be started and is utilized to defrost the cleaning evaporator (101), and defrosting water generated by defrosting enters the flushing assembly.

17. The control method of the automatic washing assembly according to claim 16, wherein when the humidity in the chamber in which the cleaning evaporator (101) is located does not reach the preset humidity, the method further comprises the steps of:

controlling a door body or a drawer of a chamber where the cleaning evaporator (101) is located to be in an open state, and improving the humidity of the chamber where the cleaning evaporator (101) is located by utilizing outside air, or supplementing water into the chamber where the cleaning evaporator (101) is located, and enabling the humidity in the refrigerator to reach preset humidity.

18. The method of controlling an automatic cleaning assembly according to claim 15, wherein cleaning the area to be cleaned comprises the steps of:

controlling the control valve (111) to be in an open state, and cleaning the area to be cleaned by using water stored in the water tank (108);

when the time length of the control valve (111) in the opening state exceeds a second preset time length, the vibration device is controlled to be in the opening state;

after the area to be cleaned is cleaned, the drain valve is controlled to be in an open state, and sewage in the area to be cleaned is discharged through a drain pipe (113);

and controlling the heater and the sterilizing device to be in an opening state, and drying and sterilizing the area to be cleaned.

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