CN114903397A - Washing electric appliance - Google Patents

Abstract

The invention discloses a washing electric appliance, comprising: a washing system having a cavity; the heat pump system comprises a compressor, a first heat exchange device, a throttling device and a second heat exchange device, wherein the first heat exchange device is configured to exchange heat with a pipeline of the washing system, the second heat exchange device comprises a first heat exchange piece and a cold accumulation piece, the compressor, the first heat exchange device, the throttling device and the first heat exchange piece are sequentially connected to form a closed loop in which a refrigerant flows, the cold accumulation piece is suitable for exchanging heat with the first heat exchange piece, and a cold accumulation agent is filled in the cold accumulation piece; and the third heat exchange device is connected with the cold accumulation piece and is suitable for leading out the cold accumulation agent in the cold accumulation piece to exchange heat with air. According to the washing electric appliance provided by the embodiment of the invention, the regeneration of the heat storage agent can be realized, and the working efficiency of the washing electric appliance is improved.

Description

Washing electric appliance

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a washing appliance.

Background

In the related art, when the dishwasher adopts a heat pump heating technology, the condenser is usually directly connected to a water flow system of the dishwasher, and in the washing process, washing water is directly circulated and heated to a specified temperature through the condenser, so that high-temperature washing of tableware is realized. However, the heat exchange efficiency with air is low when the heat pump technology is used for heating in the related art, so that the washing water cannot be sufficiently heated.

Disclosure of Invention

One object of the present invention is to provide an electric washing device, which can realize regeneration of a heat storage agent and improve the work efficiency of the electric washing device.

A washing appliance according to an embodiment of the present invention includes: a washing system having a cavity; the heat pump system comprises a compressor, a first heat exchange device, a throttling device and a second heat exchange device, wherein the first heat exchange device is configured to exchange heat with a pipeline of the washing system, the second heat exchange device comprises a first heat exchange piece and a cold accumulation piece, the compressor, the first heat exchange device, the throttling device and the first heat exchange piece are sequentially connected to form a closed loop in which a refrigerant flows, the cold accumulation piece is suitable for exchanging heat with the first heat exchange piece, and a cold accumulation agent is filled in the cold accumulation piece; and the third heat exchange device is connected with the cold accumulation piece and is suitable for leading out the cold accumulation agent in the cold accumulation piece to exchange heat with air.

According to the washing electric appliance provided by the embodiment of the invention, the regeneration of the heat storage agent can be realized, and the working efficiency of the washing electric appliance is improved.

In addition, the washing appliance according to the above embodiment of the present invention may further have the following additional technical features:

optionally, the third heat exchange means is configured to exchange heat with air during or after drying in the washing system.

Optionally, the washing appliance includes a drying program, under which the heat pump system is shut down, and the third heat exchanging device is adapted to exchange heat with high-temperature air in the cavity.

Optionally, the washing appliance comprises a washing heating program under which the heat pump system operates, and the third heat exchange device is adapted to exchange heat with the outside air of the washing system.

Optionally, the washing appliance further comprises a fan arrangement configured and adapted to drive air within the cavity and/or air outside the washing system to flow through the third heat exchange arrangement for heat exchange.

Optionally, the fan device is configured and adapted to drive air inside the cavity and air outside the washing system to flow through the third heat exchanging device for exchanging heat, and the washing appliance further comprises a switching device configured and adapted to drive one of the air inside the cavity and the air outside the washing system to flow through the third heat exchanging device for exchanging heat.

Optionally, the washing system further comprises a circulation pump connecting the third heat exchange device and the cold accumulation member to circulate the cold accumulation agent.

Optionally, the washing appliance further comprises a water pan configured to collect condensed water on the third heat exchange device, the water pan being connected to the circulation pump to drive the condensed water into the cold storage member by the circulation pump.

Optionally, the washing appliance further comprises a reversing member, the reversing member is respectively connected with the water pan, the cold storage member and the circulating pump, and the reversing member is configured to control on/off between the water pan and the circulating pump and between the cold storage member and the circulating pump.

Optionally, the first heat exchange member is at least partially embedded within the cold storage member and directly surrounded by the cold storage agent.

Optionally, the cold accumulation member includes a cold accumulation box and a second heat exchange member, and the second heat exchange member is respectively communicated with the third heat exchange device and the inner space of the cold accumulation box.

Optionally, the cold storage tank is a water tank, and the cold storage agent is water.

Optionally, the first heat exchange device is a condenser and the second heat exchange device is an evaporator.

Optionally, the first heat exchange element and the second heat exchange element are configured as an inner and outer sleeve type structure.

Optionally, the washing appliance further comprises a water pan configured to collect condensate water on the third heat exchange device, the water pan being connected to the washing system to pass condensate water into the washing system and/or the water pan being connected to the cold storage member to pass condensate water into the cold storage member.

Drawings

FIG. 1 is a schematic diagram of a washing appliance in accordance with one embodiment of the present invention.

FIG. 2 is a schematic diagram of a heat sink in the washing appliance in accordance with one embodiment of the present invention.

FIG. 3 is a schematic diagram of a washing appliance in accordance with one embodiment of the present invention.

FIG. 4 is a schematic diagram of a washing appliance in accordance with one embodiment of the present invention.

Reference numerals:

the washing device 100, the inner container 10, the air inlet channel 101, the air outlet channel 102, the washing pump 11, the water dividing valve 13, the water cup 14, the compressor 21, the first heat exchange device 22, the throttling device 23, the first heat exchange piece 24, the circulating pump 31, the third heat exchange device 32, the cold storage box 34, the second heat exchange piece 35, the pipeline 36, the fan device 37, the water receiving tray 41, the drainage pump 43, the switch valve 44, the first valve 51 and the second valve 52.

Detailed Description

The dish washer is an intelligent household appliance for replacing manual tableware cleaning. In the working process of washing tableware by the dish washing machine, washing water is conveyed to each rotary spray arm through the washing pump to continuously cover and spray the tableware for washing, so that the aim of cleaning the tableware is fulfilled. In order to further shorten the washing time of the dishwasher, the related art dishwasher washing system increases the temperature of the washing water by providing an electric heater. Under the action of the circulating spraying of the washing water, the high-temperature washing water washes away pollutants on the tableware and brings heat to the tableware, so that the dishwasher system can obtain higher cleaning rate and drying rate in shorter washing time. Therefore, reducing the heating energy consumption is a key technical direction for reducing the energy consumption of the dishwasher. A heat pump heating technology for dish washer features that under the action of compressor, condenser, expansion valve and evaporator, the refrigerant is compressed, condensed, heat released, throttle expanded and evaporated to absorb heat in heat pump system, so converting the low-grade energy to high-grade heat energy, which is then released to washing water. Compared with the traditional electric heating, the coefficient of performance of the heat pump heating system is 3-4 times or even higher than that of the common electric heating technology. The dish-washing machine adopting the heat pump heating technology has obvious energy-saving effect, can greatly reduce the use energy consumption of the dish-washing machine, and is an effective means for reducing the use energy consumption of the dish-washing machine.

Various solutions are provided in the related art to achieve heat dissipation in a condenser of a heat pump system. The invention also provides a scheme for radiating the evaporator.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

Referring to fig. 1 to 4, a washing appliance 100 according to an embodiment of the present invention includes a washing system, a heat pump system and a third heat exchanging device 32.

The washing system may be used to provide a space for washing, for example, by placing items to be washed into the washing system, cleaning may be achieved; in addition, the washing system is used as a bearing structure of each part, and a washing space is not provided. The washing system of the present invention may have a cavity, which may be a washing space (e.g., a cavity) provided in the washing system, and the cavity may also have other structures, for example, the cavity may also be a water tank or the like provided on the washing system.

The heat pump system may be used to heat a fluid (e.g., water, a washing liquid, etc.) to the washing system, and the third heat exchanging device 32 may be used to exchange heat with the heat pump system, and since the heat pump system employs a heat transporting manner to transport heat from one location to another, the heat transported location may be dissipated by the third heat exchanging device 32, thereby improving the performance of the heat pump system. Wherein the heat pump system comprises a compressor 21, a first heat exchanging means 22, a throttling means 23 and a second heat exchanging means, the first heat exchanging means 22 may be used for exchanging heat with the fluid to the cavity, in other words the first heat exchanging means 22 may be configured to exchange heat with the piping of the washing system. The second heat exchange device comprises a first heat exchange part and a cold accumulation part, and the compressor 21, the first heat exchange device 22, the throttling device 23 and the first heat exchange part 24 are sequentially connected to form a closed loop, and the closed loop is suitable for refrigerant to flow. The first heat exchange device 22 can exchange heat with a fluid to the cavity, which can be directly to the cavity or indirectly to the cavity, such as a fluid stored in the water tank to be supplied to the cavity, and the cold storage member is adapted to exchange heat with the first heat exchange member 24 and is filled with a cold storage agent.

The third heat exchange means 32 is fitted with the cold storage member and adapted to exchange heat. The third heat exchange device 32 can be connected to the cold accumulation member, and the cold accumulation member is suitable for heat exchange with the first heat exchange member 24, and the cold accumulation member is connected to the third heat exchange device 32 to form a heat conduction structure, so that the heat of the first heat exchange member 24 is conducted to the third heat exchange device 32, and the heat exchange of the first heat exchange member is realized through the heat exchange of the third heat exchange device 32. Wherein the third heat exchange device 32 is configured to lead out the coolant in the heat storage member and exchange heat with air. After the third heat exchange device 32 leads out the coolant in the cold storage member 32, the coolant exchanges heat with air, wherein the air used for exchanging heat with the third heat exchange device 32 may be ambient air or air in a washing system.

According to the washing electric appliance provided by the embodiment of the invention, the cold storage agent in the cold storage piece is led out and exchanges heat in the third heat exchange device 32, so that the low-temperature cold storage agent in the cold storage piece can be regenerated in the third heat exchange device 32, the regeneration time of the cold storage agent is effectively shortened, the regeneration of the heat storage agent can be realized, and the working efficiency of the washing electric appliance is improved.

In some embodiments of the invention, the third heat exchange means may be configured to exchange heat with air during or after drying in the washing system. Therefore, heat generated in the drying process of the washing system can be fully utilized to exchange heat for the third heat exchange device, so that the heat exchange effect and efficiency of the third heat exchange device are improved, and the drying effect can be improved.

Optionally, the washing appliance may include a drying and drying program, under which the heat pump system may be shut down, and the third heat exchanging device is adapted to exchange heat with the high temperature air in the cavity. Specifically, the washing electric appliance can run a drying program, and under the drying program, the washing electric appliance can send high-temperature air flow into the washing cavity, and the high-temperature air flow can take away water in the washing cavity, so that drying is performed. Therefore, high-temperature air can be generated in the drying and drying process, and therefore, when the washing electric appliance performs the drying and drying procedure, the high-temperature air in the cavity is utilized to exchange heat with the third heat exchange device, the regeneration efficiency of the coolant can be effectively improved, the regeneration effect of the coolant can be effectively improved, and the drying and drying effect can be improved.

In addition, as described above, the air in the drying and drying process or after drying and drying can be used for heat exchange with the third heat exchange device, wherein the air flow in the cavity can be guided to the third heat exchange device through the pipeline for heat exchange, and the like, and the third heat exchange device can be directly matched with the cavity to realize heat exchange with the third heat exchange device by using the air in the cavity.

Of course, in the present invention, the external air of the washing appliance can be used to exchange heat with the third heat exchange device. Optionally, in further embodiments of the present invention, the washing appliance comprises a washing heating program under which the heat pump system is operated and the third heat exchange means is adapted to exchange heat with the outside air of the washing system. Under the washing heating procedure, utilize heat pump system can realize heating the fluid that leads to the cavity, wherein, in the in-process that utilizes heat pump system to heat, the temperature of first heat transfer spare, cold-storage agent etc. can descend, at this moment, can utilize the air to the heat transfer of third heat transfer device to realize the regeneration of cold-storage agent. Wherein, utilize the air current in the cavity and the heat transfer of third heat transfer device this moment, can influence the normal operating of washing system, consequently, preferably adopt outside air to heat transfer to third heat transfer device.

The washing appliance further comprises a fan arrangement for directing an air flow, the fan arrangement being operable to direct the air flow to exchange heat with the third heat exchange arrangement 32, optionally the fan arrangement being configured to drive air within the cavity to flow through the third heat exchange arrangement for heat exchange, and further being operable to drive air external to the washing system to flow through the third heat exchange arrangement for heat exchange.

In other words, the fan device can also guide the airflow inside the washing system to exchange heat with the third heat exchanging device 32, for example, by using the residual heat in the washing process and the drying process in the cavity of the washing system. The fan means may also direct airflow outside the scrubbing system to exchange heat with the third heat exchange means 32. Specifically, the fan device is communicated with the air outlet channel, so that the air flow in the washing system can be guided to the third heat exchange device 32 for heat exchange. The washing electric appliance can dissipate heat by utilizing heat in the cavity, and can improve the efficiency of a heat pump system and the stability of the washing electric appliance. So that the airflow can pass through the third heat exchange device 32, and the heat dissipation of the third heat exchange device 32 is realized.

The washing appliance may comprise a conduit 36, and the conduit 36 may lead to the third heat exchange means 32, thereby directing the airflow to the third heat exchange means 32 for heat dissipation. The duct 36 may be connected to an external space of the washing system. Therefore, the third heat exchange device 32 can be cooled by using the airflow outside the washing system, and the pipeline 36 can be communicated with the inner space of the washing system, in other words, the pipeline is communicated with the air outlet channel, so that the third heat exchange device 32 can be cooled by using the heat in the washing process or other processes inside the washing system, and the cooling efficiency and effect are effectively improved. And through third heat transfer device 32, can also realize the drying to washing system inside to reduce the influence to ambient humidity. The pipeline in the invention can be a pipeline with one end connected with the air outlet channel and the other end facing the third heat exchange device 32, so that the air flow in the cavity can be guided to the third heat exchange device 32, the third heat exchange device 32 is cooled, and the influence of the air flow discharged in the cavity on the environment can be reduced. Of course, the pipe of the present invention may be arranged in other forms, for example, two ends of the pipe are respectively connected to the air inlet channel and the air outlet channel, and the third heat exchanging device 32 is arranged in the channel for heat exchanging, so as to further improve the performance of the washing appliance.

As shown in fig. 1 and fig. 2, the washing appliance may further include a pipe 36, the pipe 36 is connected to the inner space of the washing system, and the fan device 37 may drive the airflow to pass through the third heat exchanging device 32, so as to dissipate heat of the third heat exchanging device 32. Specifically, after the heat pump is heated and operated, that is, after the washing procedure is completed, and during the drying stage, a large amount of high-temperature high-humidity air is contained in the cavity, the high-temperature high-humidity air in the cavity can be forcibly subjected to heat exchange with the third heat exchange device 32 through the exhaust passage 102 by the fan device 37, so that the regeneration rate of the heat storage agent is effectively increased. This air channel can be used in the normal drying phase, i.e. ambient air is admitted through the inlet channel 101 and chamber air is exhausted through the outlet.

In addition, when the high-temperature and high-humidity air exchanges heat with the third heat exchange device 32, condensed water is generated, and the condensed water can be sent into the third heat exchange device 32 through the circulation pump 31 and then enter the cold storage tank 34, at this time, the first valve 51 is opened and the second valve 52 is closed. The present invention will be described in detail in the following.

As mentioned above, in the foregoing embodiments of the present invention, in some embodiments, air inside the cavity is used to exchange heat with the third heat exchanging device, and in other embodiments, air outside the cavity is used to exchange heat with the third heat exchanging device. In addition, in some other embodiments of the present invention, the third heat exchanging device can exchange heat with air inside and outside the cavity. Specifically, the fan device may be configured to drive air inside the cavity and air outside the washing system to flow through the third heat exchanging device for heat exchange, and the washing appliance may further include a switching device configured to drive one of the air inside the cavity and the air outside the washing system to flow through the third heat exchanging device for heat exchange. That is, the air exchanging heat with the third heat exchanging device in the present invention may be air inside the cavity or air outside the cavity. In the actual use process, if the air outside the cavity needs to be utilized to exchange heat with the third heat exchange device, the air outside the cavity can be guided to the third heat exchange device to exchange heat; if the air in the cavity needs to be utilized to exchange heat with the third heat exchange device, the air in the cavity can be guided to the third heat exchange device to exchange heat; if the air inside and outside the cavity needs to be used for exchanging heat with the third heat exchange device, the air inside and outside the cavity can be guided to the third heat exchange device for exchanging heat. Wherein the switching can be realized by means of a switching device.

The switching device can be a structure such as a reversing valve, and can also be a switch valve in other forms, for example, the washing appliance in the invention can also comprise a pipeline, the pipeline is provided with three interfaces which are respectively connected with the fan, the inner space of the cavity and the outer space of the cavity, and the switch valves are arranged at two interfaces, so that the switching of air sources can be realized through the switch valves.

In addition, the washing appliance may further include a circulation pump 31, where the circulation pump 31 is configured to drive a refrigerant to circulate, so as to improve heat exchange efficiency between the third heat exchange device 32 and the cold storage member, where the circulation pump 31, the third heat exchange device 32, and the cold storage member are sequentially connected to form a loop (or referred to as a heat exchange loop). Specifically, the circulation pump connects the third heat exchanger and the cold accumulation member to circulate the cold accumulation agent, one end of the circulation pump 31 connects the third heat exchanger 32, the other end of the circulation pump 31 connects the cold accumulation member, and the third heat exchanger 32 is connected to the cold accumulation member, so that the fluid in the circuit can be driven by the circulation pump 31 to form a heat exchange circuit along the circulation pump 31 → the third heat exchanger 32 → the cold accumulation member → the circulation pump 31, and of course, a heat exchange circuit can also be formed along the circulation pump 31 → the cold accumulation member → the third heat exchanger 32 → the circulation pump 31. Through setting up heat transfer return circuit, draw the coolant of cold storage piece and dispel the heat, make things convenient for arranging of each component more to improve radiating efficiency and effect, and can make things convenient for the collection to the comdenstion water more. In the present invention, the circulation pump 31 may not be provided, and heat conduction between the third heat exchanger 32 and the cold storage material may be realized by natural convection of the cold and hot media.

The cold accumulation member may include a cold accumulation box 34, and the cold accumulation box 34 may be connected to the circulation pump 31 and the third heat exchange device 32, respectively, so as to construct a loop, and the cold accumulation box 34 may be filled with a cold accumulation agent, wherein the first heat exchange member 24 may be connected to the cold accumulation box 34, or at least a portion of the first heat exchange member 24 may be embedded into the cold accumulation box 34, and a portion of the first heat exchange member 24 embedded into the cold accumulation box 34 may be directly wrapped by the cold accumulation agent. By providing the cold storage box 34, the heat radiation effect to the first heat exchanging element 24 can be improved, and the influence on the environment can be reduced.

Optionally, a second heat exchange member 35 may be further disposed in the cold storage box 34, the second heat exchange member 35 may be respectively communicated with the third heat exchange device 32 and the inner space of the cold storage box 34, and the second heat exchange member 35 cooperates with the first heat exchange member 24 and is adapted to exchange heat. In combination with the foregoing embodiment, under the driving action of the circulation pump 31, the coolant will pass through the second heat exchange member 35 after passing through the third heat exchange device 32, and then enter the coolant storage box 34, and when the first heat exchange member 24 is connected to the coolant storage box 34, the coolant in the coolant storage box 34 can exchange heat with the first heat exchange member 24; the coolant may exchange heat with the first heat exchange member 24 in direct contact when at least a portion of the first heat exchange member 24 is embedded in the regenerator box 34, for example, by immersing the first heat exchange member 24 entirely in the regenerator box 34 and contacting the coolant directly with the first heat exchange member 24. In addition, through setting up second heat transfer piece 35, also can carry out effectual quick heat dissipation between second heat transfer piece 35 and the first heat transfer piece 24, moreover, through the heat-conduction of coolant, can further improve the heat exchange efficiency between first heat transfer piece 24 and the second heat transfer piece 35. So that the heat radiation effect to the first heat exchanging element 24 can be improved.

The cold storage tank is a water tank, and the cold storage agent can be water. Of course, other coolant, for example, a mixed material of water and other medium, may be used.

Optionally, according to the washing appliance 100 of the embodiment of the present invention, the heat exchange efficiency of the heat pump system is improved, and in addition, condensed water generated in the heat dissipation process is collected, so that the condensed water is prevented from dropping on the bottom surface, or the condensed water affects stable operation of other electrical elements, and the stability and safety of the washing appliance 100 can be improved.

Optionally, the washing appliance may further comprise a drain pan 41, through which drain water can be received, that is, the drain pan 41 is configured to receive the drain water, as described above, the position where the drain water is most easily generated in the present invention is the third heat exchange device 32, and therefore, the drain pan 41 in the present invention may be provided to collect the drain water on the third heat exchange device 32. The water pan 41 may be disposed below the third heat exchange device 32. Of course, the purpose of the water pan 41 in the present invention is mainly to collect the condensed water, and therefore, the water pan in the present invention may also be disposed at other positions suitable for collecting the condensed water.

After the condensed water is collected, the collected condensed water can be volatilized and consumed under the driving action of the air flow. In addition, the collected condensed water can be discharged to other positions, and the invention provides some embodiments: directly discharging the condensed water collected by the collection assembly, for example, directly into an external device, into a drainage location of a kitchen, etc.; the condensed water can be discharged into the washing system and discharged through a drainage device of the washing system; and the condensed water can be discharged into the heat exchange loop to supplement a heat exchange medium in the heat exchange loop, and the like.

Alternatively, as shown in fig. 2, the water receiving tray may be connected to the circulation pump 31 and configured to collect the condensed water collected by the collection assembly into the cold storage member under the driving action of the circulation pump 31. Can improve heat exchange efficiency and effect through the replenishment to the heat transfer medium of heat transfer return circuit, avoid the heat transfer medium quality among the heat dissipation process to reduce.

Alternatively, as shown in fig. 2, a water receiving tray 41 may be connected between the third heat exchanging device 32 and the circulation pump 31. Thereby forming two paths: circulating pump 31 → third heat exchange device 32 → cold storage → circulating pump 31; and the water pan → the circulation pump 31 → the third heat exchange means 32 → the cold accumulation member, thereby completing the collection of the condensed water and the circulation heat exchange through these two paths.

In order to facilitate heat exchange circulation and condensate water recovery, a reversing structure can be arranged to realize switching of heat exchange circulation and condensate water recovery.

Specifically, as shown in fig. 2, the washing appliance may further include a reversing member connected to the water receiving tray, the cold accumulation member, and the circulation pump 31, respectively, the reversing member being configured to control on/off between the circulation pump 31 and the cold accumulation member, and the reversing member being further configured to control on/off between the circulation pump 31 and the cold accumulation member. That is to say, the reversing part can control the on-off between the circulating pump 31 and the water receiving tray, and the reversing part can also control the on-off between the circulating pump 31 and the cold accumulation part, so that the heat exchange circulation and the recovery of condensed water can be realized under the reversing action of the reversing part, and the performance of the heat radiating device is effectively improved.

The reversing piece can be a three-way reversing valve, the three-way reversing valve is provided with a plurality of interfaces, one interface is connected with a water receiving disc, the second interface is connected with a cold storage piece, the third interface is connected with a circulating pump 31, and at least one part of various connection modes is realized by controlling the three-way reversing valve: the water receiving tray is connected with the circulating pump 31, and the cold storage part is disconnected from the circulating pump 31; the water receiving tray is disconnected from the circulating pump 31, and the cold accumulation member is communicated with the circulating pump 31; the water receiving tray is communicated with the circulating pump 31, and the cold storage part is communicated with the circulating pump 31; disconnecting the drip tray from the circulation pump 31 and disconnecting the cold storage member from the circulation pump 31, etc.

In addition, as shown in fig. 2, the reversing element in the present invention may further include a first valve 51 and a second valve 52, the first valve 51 is connected between the water pan 41 and the circulation pump 31, and the second valve 52 is connected between the water pan and the circulation pump 31, so that the on/off between the circulation pump 31 and the water pan and the on/off between the circulation pump 31 and the cold storage element are realized by the on/off of the first valve 51 and the second valve 52, and at least one of the following connection modes may be realized: the first valve 51 is opened, the second valve 52 is closed, the water receiving tray is connected with the circulating pump 31, and the cold storage part is disconnected from the circulating pump 31; the first valve 51 is closed, the second valve 52 is opened, the water receiving tray and the circulating pump 31 are disconnected, and the cold storage part and the circulating pump 31 are communicated; the first valve 51 is opened, the second valve 52 is opened, the water receiving tray is communicated with the circulating pump 31, and the cold storage part is communicated with the circulating pump 31; closing the first valve 51, closing the second valve 52, disconnecting the drain pan from the circulation pump 31, and disconnecting the cold storage device from the circulation pump 31.

Of course, it will be understood by those skilled in the art that the reversing element in the present invention may have other configurations, and the description is not repeated here.

In combination with the foregoing description, the washing appliance may further include a water pan that may be configured to collect the condensed water on the third heat exchange device, and the water pan may be connected to the washing system, wherein, as described above, it is configured such that the water pan may be connected to the cold storage member to pass the condensed water into the cold storage member.

In addition, the invention can also be set in such a way that the water receiving tray can lead the condensed water into the washing system. For example, the washing system may further include the inner container 10, the water cup 14, and a drain, and the drain tray 41 may be in communication with at least one of the inner container 10, the water cup 14, and the drain to discharge condensed water. In other words, the water receiving tray 41 can be communicated with the liner 10, the water cup 14 or the drainage device; the water receiving tray 41 may be communicated with two or three of the inner container 10, the water cup 14, and the drain device, and drainage of the condensed water through the drain device of the washing system may be facilitated by communicating the water receiving tray 41 with at least one of the inner container 10, the water cup 14, and the drain device. Of course, the washing system of the present invention may further include a water tank and the like, and the condensed water may be discharged to the structure as well. Optionally, as shown in fig. 3, the drain pan 41 is connected in series with at least one of a drain pump 43 and a switching valve 44. For example, the drain pump 43 is connected in series with the drain pan 41; the drain pan 41 is connected in series with the on-off valve 44, and for example, the drain pan 41 is connected in series with the drain pump 43 and the on-off valve 44.

In addition, the washing appliance in the invention can be a dishwasher, and can also be other washing appliances, wherein, the washing system also comprises: the washing device comprises a washing pump and a shunt valve, wherein the washing pump is connected with the shunt valve, and the first heat exchange device is constructed to be used for exchanging heat with a connecting pipeline between the washing pump and the shunt valve.

In addition, besides the above scheme of dissipating heat from the second heat exchanger, the present invention may also adopt other heat dissipating manners for the second heat exchanger, such as:

cold air is directly blown to the second heat exchange device to realize air cooling; or

The second heat exchange device is provided with a heat dissipation structure, and air is supplied to the heat dissipation structure for heat exchange; or

A circulating heat exchange device is arranged to lead out the heat of the second heat exchange device, and air supply and heat dissipation are carried out on the lead-out position;

arranging a water cooling device, guiding out the heat of the second heat exchange device through the water cooling device, and carrying out air supply and heat dissipation on the guiding-out position; or

The cold accumulation device is arranged, the second heat exchange device is cooled through the cold accumulation device, and meanwhile, the heat exchange device is arranged to regenerate the cold accumulation device.

Wherein, the source of the air flow can be the cavity and the external ambient air.

The heat dissipation manner of the second heat exchange device in the present invention is various, and the above description is only some specific embodiments of the present invention, and is not intended to limit the protection scope of the present invention.

In the heating process, the first heat exchange element 24 can be used as an evaporator, the first heat exchange device can be used as a condenser, the compressor 21 acts as a power system, and under the action of the compressor 21, the refrigerant absorbs heat in the evaporator and circulates to the condenser to release heat, so that the heating process is realized.

In addition, the heat pump system can also be a semiconductor refrigerating sheet.

The washing appliance 100 according to some embodiments of the present invention will be described with reference to the accompanying drawings, where the washing appliance 100 according to the present invention may be a washing device such as a dishwasher, and the present invention is mainly illustrated by a dishwasher, but is not limited to the scope of the present invention.

Referring to fig. 1 to 4, an electric washing appliance 100 according to an embodiment of the present invention is described, which includes a liner 10, a cup 14, a spray arm, a shunt valve 13, a washing pump 11, a heat pump system, a third heat exchanger, and other structures, wherein the liner 10 has a spray arm disposed therein, the spray arm may include multiple layers arranged up and down, the spray arm has spray holes disposed thereon, and the spray arm may spray water into a cavity through the spray holes to clean the cavity, wherein the bottom of the liner 10 has the cup 14, water in the liner 10 may remain in the cup 14, the washing pump 11 is connected to the cup 14, the washing pump 11 is adapted to pump out water in the liner 10 and the cup 14, the washing pump 11 is connected to the shunt valve 13, water pumped out by the washing pump 11 is sent to the shunt valve 13, the shunt valve 13 may be connected to the plurality of spray arms, and water pumped out by the washing pump 11 may be sent to different spray arms through the shunt valve 13.

A heat exchange device is arranged between the washing pump 11 and the spray arm, and the heat exchange device is connected with a heat pump system, so that heat exchange is performed between the heat pump system and the heat exchange device (the invention mainly takes heating as an example), and heating of water sent to the spray arm can be realized, wherein the heat pump system can comprise a compressor 21, a first heat exchange device 22, a throttling device 23 and a second heat exchange device, wherein the compressor 21 is connected with the first heat exchange device 22, the first heat exchange device 22 is connected with the throttling device 23, the throttling device 23 is connected with a first heat exchange piece 24, the first heat exchange piece 24 is connected with the compressor 21, so as to form a circulation loop, and the first heat exchange device 22 is used for heating fluid sent out by the washing pump 11.

In order to improve the performance of the heat pump system, the heat storage module (i.e. the cold storage member) is disposed at the second heat exchange device, the heat storage module includes a cold storage tank 34, the cold storage tank 34 is filled with a cold storage agent, the first heat exchange member 24 is embedded into the heat storage tank, and the first heat exchange member 24 contacts the cold storage agent, or the first heat exchange member 24 is wrapped by the cold storage agent.

In addition, the washing electric appliance includes the heat storage module, and further includes a structure for regenerating a coolant in the heat storage module, specifically, the heat dissipation device further includes a circulation pump 31, a third heat exchange device 32, and a second heat exchange member 35, wherein an inlet of the circulation pump 31 is communicated with the heat storage box 34, an outlet of the circulation pump 31 is communicated with the third heat exchange device 32, the third heat exchange device 32 is communicated with the second heat exchange member 35, the second heat exchange member 35 is disposed in the heat storage box 34, the third heat exchange device 32 is connected to one end of the second heat exchange member 35, and the other end of the second heat exchange member 35 is communicated with an inner space of the heat storage box 34. Thereby realizing the regeneration of the coolant through the heat exchange loop.

In the process of dissipating heat from the third heat exchange device 32, condensed water is generated on the third heat exchange device 32, and therefore, the washing appliance of the present invention further includes a device for collecting the condensed water.

Wherein, fig. 1 to 3 describe a heat dissipation structure of the present invention; fig. 4 depicts another heat dissipation structure of the present invention. Fig. 2 and 3 show two different condensate water discharge modes, respectively, and it should be noted that the washing appliance of the present invention may be provided with these condensate water treatment modes at the same time, for example, a structure for introducing condensate water to the cold storage tank and discharging the condensate water at the same time, specifically, when the heat storage agent of the cold storage tank is insufficient, the condensate water may be used for replenishment, and when the heat storage agent of the cold storage tank is sufficient, the condensate water may be discharged. The details will be described below.

As shown in fig. 1 and 2, a duct 36 and a fan device 37 are provided, the duct 36 is connected to the inner space of the washing system, and the fan device 37 can drive the air flow to pass through the third heat exchanger 32, so as to dissipate heat of the third heat exchanger 32. Specifically, after the heat pump is heated and operated, that is, after the washing procedure is completed, and during the drying stage, a large amount of high-temperature high-humidity air is contained in the cavity, the high-temperature high-humidity air in the cavity can be forcibly subjected to heat exchange with the third heat exchange device 32 through the exhaust passage 102 by the fan device 37, so that the regeneration rate of the heat storage agent is effectively increased. This air channel can be used in the normal drying phase, i.e. ambient air is admitted through the inlet channel 101 and chamber air is exhausted through the outlet. When the high temperature and high humidity air exchanges heat with the third heat exchange device 32, condensed water is generated, and the condensed water can be sent into the third heat exchange device 32 through the driving member 31 and then enters the cold storage tank 34, at this time, the first valve 51 is opened and the second valve 52 is closed.

As shown in fig. 3, a duct 36 and a fan device 37 are provided, the duct 36 is connected to the inner space of the washing system, and the fan device 37 can drive the airflow to pass through the third heat exchanger 32, so as to dissipate heat of the third heat exchanger 32. Specifically, after the heat pump is heated, that is, after the washing procedure is completed, and during the drying stage, a large amount of high-temperature and high-humidity air is contained in the cavity, the high-temperature and high-humidity air in the cavity can be forced to exchange heat with the third heat exchange device 32 through the exhaust passage 102 by the blower device 37, so as to effectively increase the regeneration rate of the heat storage agent. This air channel can be used in the normal drying phase, i.e. ambient air is admitted through the inlet channel 101 and chamber air is exhausted through the outlet. When the high temperature and high humidity air exchanges heat with the third heat exchange device 32, condensed water is generated, and the condensed water can be pumped into the cavity of the liner 10 or the water cup 14 through the switch valve 44 by the drainage pump 43 and then discharged through the drainage device.

As shown in fig. 4, a duct 36 and a fan device 37 are provided, the duct 36 is connected to the space outside the washing system, and the fan device 37 can drive the airflow to pass through the third heat exchanger 32, so as to dissipate heat of the third heat exchanger 32. Specifically, after the heat pump heating operation, that is, after the washing program stage is completed, the coolant (or coolant) in the coolant storage 34 (or coolant storage) is partially solidified, and in order to realize the energy regeneration of the coolant so as to perform the next stage or the next heat pump heating, the fan device 37 is used to forcibly exchange heat between the external air and the third heat exchange device 32, so as to effectively increase the regeneration rate of the coolant. When the external air exchanges heat with the third heat exchange device 32, condensed water is generated, and the condensed water can be sent to the fourth heat exchange device through the driving member 31 (such as a water-cooling circulating pump) and then enters the cold storage tank 34, at this time, the first valve 51 is opened and the second valve 52 is closed.

The first heat exchange member 24 and the second heat exchange member 35 in the present invention may be configured in a sleeve type structure, for example, the second heat exchange member 35 is sleeved outside the first heat exchange member 24, or the first heat exchange member 24 is sleeved outside the second heat exchange member 35, wherein both the first heat exchange member 24 and the second heat exchange member 35 may be arranged in a tubular shape, and the first heat exchange member 24 and the second heat exchange member 35 are nested.

In the invention, a sleeve-type heat exchanger is adopted, and the heat exchange is carried out by forced convection in the pipe, so that the heat exchange efficiency is greatly improved, and the energy consumption of a heat pump system is further reduced; the first heat exchange piece 24 is directly immersed in the cold storage box 34, so that the heat exchange area of the evaporator can be increased, the icing outside the pipe can be controlled, and the volume of the cold storage box 34 is reduced by further utilizing the latent heat of water in the cold storage box 34; the third heat exchange device 32 is adopted to realize regeneration by forcibly exchanging heat with the outside air or the air in the washing system; the water cooling regeneration uses the outside air to exchange heat forcibly, and can be operated after the heating stage of the heat pump is finished, and also can be carried out in the drying stage; condensed water generated by heat exchange is pumped into the box body.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (14)

1. A washing appliance, comprising:

a washing system having a cavity;

the heat pump system comprises a compressor, a first heat exchange device, a throttling device and a second heat exchange device, wherein the first heat exchange device is configured to exchange heat with a pipeline of the washing system, the second heat exchange device comprises a first heat exchange piece and a cold accumulation piece, the compressor, the first heat exchange device, the throttling device and the first heat exchange piece are sequentially connected to form a closed loop in which a refrigerant flows, the cold accumulation piece is suitable for exchanging heat with the first heat exchange piece, and a cold accumulation agent is filled in the cold accumulation piece;

and the third heat exchange device is connected with the cold accumulation piece and is suitable for leading out the cold accumulation agent in the cold accumulation piece to exchange heat with air.

2. The washing appliance according to claim 1, characterized in that the third heat exchange means are configured and adapted to exchange heat with air during or after drying in the washing system.

3. The washing appliance of claim 2, wherein the washing appliance includes a dry drying program under which the heat pump system is shut down and the third heat exchange device is adapted to exchange heat with the high temperature air within the cavity.

4. The washing appliance of claim 1 wherein the washing appliance includes a washing heating program under which the heat pump system is operating and the third heat exchange means is adapted to exchange heat with the outside air of the washing system.

5. Washing appliance according to any of the claims 1-4, characterized in that the washing appliance further comprises a fan arrangement configured and adapted to drive air inside the cavity and/or outside the washing system through the third heat exchanging arrangement for heat exchange.

6. The washing appliance according to claim 5, wherein the fan device is adapted to drive air inside the cavity and air outside the washing system to flow through the third heat exchanging device for exchanging heat, the washing appliance further comprising a switching device adapted to drive one of the air inside the cavity and the air outside the washing system to flow through the third heat exchanging device for exchanging heat.

7. The washing appliance according to any of the claims 1-6, characterized in that the washing system further comprises a circulation pump connecting the third heat exchanging means and the cold storage member for circulating the cold storage agent.

8. The washing appliance of claim 7, further comprising a water pan configured to collect condensate water on the third heat exchange device, the water pan being connected to the circulation pump to drive condensate water into the cold store via the circulation pump.

9. The washing appliance of claim 8, further comprising a diverter coupled to the water pan, the cold reservoir, and the circulation pump, respectively, the diverter configured to control the on/off between the water pan and the circulation pump and between the cold reservoir and the circulation pump.

10. Washing appliance according to any of the claims 1-9, characterized in that the first heat exchange member is at least partially embedded in the cold storage member and directly surrounded by the cold storage agent.

11. The washing appliance according to any of the claims 1-10, wherein the cold storage member comprises a cold storage tank and a second heat exchange member, the second heat exchange member being in communication with the third heat exchange means and the inner space of the cold storage tank, respectively.

12. Washing appliance according to claim 11,

the cold storage tank is a water tank, and the cold storage agent is water; and/or

The first heat exchange device is a condenser and the first heat exchange member is an evaporator.

13. The washing appliance according to claim 12, characterized in that the first heat exchanger and the second heat exchanger are configured as an inner and outer sleeve structure.

14. The washing appliance according to claim 1, further comprising a water pan configured to collect condensate water on the third heat exchange device, the water pan being connected to the washing system to pass condensate water to the washing system and/or the water pan being connected to the cold store to pass condensate water to the cold store.

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