WO2022143698A1

WO2022143698A1 - Heat pump type washing device

Info

Publication number: WO2022143698A1
Application number: PCT/CN2021/142193
Authority: WO
Inventors: 王文鹏; 刘和成
Original assignee: 广东美的白色家电技术创新中心有限公司; 美的集团股份有限公司
Priority date: 2020-12-30
Filing date: 2021-12-28
Publication date: 2022-07-07
Also published as: CN114680768A

Abstract

Provided is a heat pump type washing device (100), comprising: a base (120), which is provided with an air intake duct (151) and an air outlet duct (152) which communicates with the air intake duct (151), the air intake duct (151) having an air inlet (151a), and the air outlet duct having an air outlet (152a); and a heat pump system (140), which comprises an evaporator (144) which is disposed within the air intake duct (151) and is arranged adjacent to the air inlet (151a), and is used for enabling heat exchange, in the evaporator (144), of an airflow that enters by passing through the air inlet (151a), the airflow after the heat exchange flows out by passing through the air outlet (152a). A plane of the air intake duct (151) at the air inlet (151a) is roughly parallel to a plane of the air outlet duct at the air outlet (152a). The heat pump type washing device is suitable for embedded washing devices.

Description

Heat pump washing equipment

【Technical field】

The present application relates to the technical field of kitchen appliances, in particular to a heat pump type washing device.

【Background technique】

In recent years, more and more consumers have opted to use dishwashing equipment, such as dishwashers. Among them, the built-in dishwasher can effectively save the space of the kitchen, and is more and more favored by users. Dishwashers usually require heating water to a certain temperature during the dishwashing process. In the related art, for built-in dishwashers, due to the limitation of installation space, electric heating is usually used to heat water, that is, an electric heater and a water pump are arranged at the bottom of the dishwasher, and the heated water is pumped by the water pump and sprayed. Arm, after washing the dishes, the water returns to the water cup, and it is filtered and reheated to circulate and clean.

However, the use of electric heating consumes a lot of energy, which is not in line with the trend of energy saving.

[Content of the invention]

The present application provides a heat pump type washing device, which can be used in a built-in dishwasher to solve the problem of high energy consumption in the related art.

In order to solve the above technical problems, one aspect of the present application provides a heat pump type washing device. The heat pump type washing equipment comprises: a base on which is provided an air inlet duct and an air outlet duct communicated with the air inlet duct, the air inlet duct has an air inlet, and the air outlet duct has an air outlet; and a heat pump system, comprising: an evaporator, which is arranged in the air inlet duct and adjacent to the air inlet, so that the airflow entering through the air inlet conducts heat exchange in the evaporator, And the air flow after heat exchange flows out through the air outlet; the plane of the air inlet air duct at the air inlet is substantially parallel to the plane of the air outlet air duct at the air outlet.

By making the plane of the air inlet air duct at the air inlet and the plane of the air outlet air duct at the air outlet roughly parallel, the effect of the air entering and leaving the air from the same plane can be realized, and it is suitable for a variety of heat pump washing equipment, especially It is a built-in washing machine.

【Description of drawings】

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

A schematic diagram of a heat pump type washing device in an embodiment of the present application;

1 is a schematic diagram of a heat pump type washing device in an embodiment of the present application;

Fig. 2 is a partial structural schematic diagram of the heat pump type washing device in an embodiment of the present application corresponding to the principle diagram shown in Fig. 1;

Fig. 3 is the partial structure schematic diagram of the heat pump type washing equipment in Fig. 2;

4 is a schematic structural diagram of the base of the heat pump type washing device in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another angle at the base of the heat pump type washing device of FIG. 4;

Fig. 6 is a partial structural schematic diagram at the base of the heat pump type washing device of Fig. 4;

7 is a partial structural schematic diagram of the base of the heat pump type washing device in an embodiment of the present application;

Fig. 8 is a partial structural schematic diagram of another angle at the base of the heat pump type washing device of Fig. 7;

9 is a partial structural schematic diagram of a heat pump type washing device in an embodiment of the present application;

Fig. 10 is the structural representation at the door body of the heat pump type washing equipment in Fig. 9;

11 is a schematic structural diagram of a condenser in an embodiment of the present application;

Figure 12 is a schematic diagram of the assembly structure of the water channel and the refrigerant channel of the condenser in Figure 11;

Fig. 13 is a schematic diagram of the assembly structure of the water channel of the condenser and the condenser shell in Fig. 11;

FIG. 14 is a schematic structural diagram of the refrigerant passage in FIG. 11;

15 is a schematic structural diagram of a water channel body/refrigerant channel body in an embodiment of the present application;

16 is a schematic diagram of the base structure of the heat pump type washing device in an embodiment of the present application;

17 is a schematic structural diagram of a washing cycle system in an embodiment of the present application;

18 is a schematic structural diagram of a heat pump system in an embodiment of the present application;

FIG. 19 is a partial structural schematic diagram of the base of the heat pump type washing device in an embodiment of the present application;

FIG. 20 is a schematic structural diagram of the heat pump system of the heat pump washing equipment in FIG. 19;

Fig. 21 is a partial structural schematic diagram of a heat pump type washing device in an embodiment of the present application;

Fig. 22 is a partial structural schematic diagram of another angle of the heat pump type washing device in Fig. 21;

Fig. 23 is a partial structural schematic diagram of the base of the heat pump type washing device in an embodiment of the present application;

Figure 24 is a schematic diagram of the assembly structure of the heat pump system and the air duct of the heat pump washing equipment in Figure 23;

Fig. 25 is a schematic view of the assembled structure of the heat pump system and the air duct of the heat pump washing equipment in Fig. 24 from another angle;

Figure 26 is a schematic diagram of a heat pump type washing device in another embodiment of the present application;

Fig. 27 is a partial structural schematic diagram of the heat pump type washing device in an embodiment of the present application corresponding to the principle diagram shown in Fig. 26;

Figure 28 is a schematic structural diagram of the door body of the heat pump washing equipment in Figure 27;

Figure 29 is a schematic structural diagram at the base of the heat pump type washing device in Figure 27;

Fig. 30 is a partial structural schematic diagram of a heat pump type washing device in another embodiment of the present application corresponding to the schematic diagram shown in Fig. 26;

Figure 31 is a schematic structural diagram at the base of the heat pump type washing device in Figure 30;

Figure 32 is a schematic diagram of a heat pump washing apparatus in yet another embodiment of the present application; and

FIG. 33 is a partial structural schematic diagram of the base of the heat pump type washing device in an embodiment of the present application corresponding to the principle diagram shown in FIG. 32 .

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application.

The terms "first" and "second" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices. The term "and/or" is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

Unless otherwise defined, the term "substantially" mentioned in this application can be understood as a range of about ±15% of a certain value in terms of numerical quantity or quantitative relationship. Therefore, hereinafter, if two lines or planes are referred to as being "substantially perpendicular", it means that the included angle between the two lines or two planes may be 76.5°-103.5°. While two lines or planes are "substantially parallel", it means that the included angle between the two lines or two planes can be 153°-207°.

Some embodiments of the present application provide a heat pump type washing apparatus for washing dishes, such as a dishwasher, especially a built-in dishwasher. FIG. 1 shows a schematic diagram of a heat pump type washing device in an embodiment of the present application. 2-4 show a partial structure of the heat pump washing apparatus 100 corresponding to the schematic diagram in FIG. 1 .

As shown in FIGS. 1-4 , in an embodiment of the present application, the heat pump type washing device 100 may generally include a casing 110 , a base 120 fixedly connected to the casing 110 and forming an inner container with the outer casing 110 , and accommodated in the inner container The washing circulation system 130 and the heat pump system 140 are provided, and the door body 160 connected with the housing 110. The door body 160 is rotatably connected to the housing 110 and is rotatable relative to the base 120 , so that the door body 160 can switch between a closed state for closing the housing 110 and an open state for opening the housing 110 .

Further referring to FIGS. 1-4 , the washing cycle system 130 is disposed on the base 120 and generally includes a water cup 131 , a spray arm 132 , and a suction pump 133 communicating with the water cup 131 and the spray arm 132 . The water cup 131 is generally provided with a water return port 131a and a water cup water outlet 131b. The water cup outlet 131b can be connected with the spray arm 132 . The suction pump 133 is used to pump the water filtered by the water cup 131 after falling into the water cup 131 from the water return port 131 a to pump the water to the spray arm 132 through the water cup water outlet 131 b.

Referring further to FIGS. 1 and 4 , the heat pump system 140 may generally include a compressor 141 , a condenser 142 , a throttling device 143 , and an evaporator 144 interconnected to form a circuit. 11 , the condenser 142 includes a water channel 1422 for accommodating water and a refrigerant channel 1423 for accommodating refrigerant, and the refrigerant can flow into the evaporator 144 . Before exchanging heat with water, the refrigerant is in a high temperature and high pressure state in the condenser 142 . When the heating of the water is completed and the water enters the evaporator 144, the refrigerant is in a low temperature and low pressure state.

1-4, when the heat pump type washing device 100 is working, the water can fall into the water cup 131 from the water return port 131a to realize filtration. The filtered water will pass through the water channel 1422 of the condenser 142 in sequence, and complete heat exchange with the refrigerant in the condenser 142 . At this time, the temperature of the water increases through the heat exchange of the condenser 142, while the temperature of the refrigerant decreases, and the heating process of the water is completed. The heated water can continue to be pumped to the spray arm 132 by the suction and pumping action of the suction pump 133, and then sprayed from the spray arm 132 into the inner tank, thereby flushing and washing the items to be washed in the inner tank. The washed water falls into the water cup 131 through the water return port 131a again, and continues to circulate.

The refrigerant cooled by the heat exchange of the condenser 142 passes through the throttling device 143 and then enters the evaporator 144 , and completes heat exchange in the evaporator 144 . In some embodiments, the evaporator 144 is a gas-liquid heat exchanger. The airflow entering the evaporator 144 will exchange heat with the refrigerant entering the evaporator 144 , so that the temperature of the refrigerant increases and the temperature of the airflow decreases. The refrigerant with increased temperature is returned to the compressor 141, and then provided to the condenser 142, and continues to be used in the subsequent water heating process.

Referring to FIGS. 4-6 , in some embodiments, the heat pump washing apparatus 100 further includes an air duct 150 through which airflow for heat exchange can enter and/or flow out of the evaporator 144 . In some embodiments, the air duct 150 may generally include an air inlet air duct 151 and an air outlet air duct 152 that are independently arranged. In this embodiment, the air inlet duct 151 and the air outlet duct 152 are both disposed on the base 120 , and the air inlet duct 151 and the air outlet duct 152 communicate with each other.

Referring further to FIGS. 4-6 , in some embodiments, the base 120 may generally include a base body 121 . The air inlet duct 151 may generally include a bottom wall 1511, a top wall 1512 disposed opposite to the bottom wall 1511, and a first side wall 1513, a second side wall 1514 and a first side wall 1513, a second side wall 1514 and a first side wall 1513 connected to the bottom wall 1511 and the top wall 1512 respectively. Three side walls 1515. Wherein, the bottom wall 1511 can be fixedly connected with the base body 121, for example, integrally formed. The second side wall 1514 and the third side wall 1515 may be disposed on opposite sides of the first side wall 1513, respectively. The bottom wall 1511 , the top wall 1512 , the first side wall 1513 , the second side wall 1514 , and the third side wall 1515 can enclose an air inlet cavity (not numbered), which is used for air intake duct 151 The airflow is directed, and the air inlet cavity is opened at one end to form an air inlet 151a.

In some embodiments, the air outlet duct 152 is in the shape of a pipe, which may also be referred to as an "air outlet pipe", which includes a pipe wall (not numbered) and an air outlet cavity (not numbered) enclosed by the pipe wall . The air outlet duct 152 is also open at one end to form an air outlet 152a.

In some embodiments, referring to FIG. 6 in particular, the plane where the air inlet duct 151 is located at the air inlet 151a is substantially parallel to the plane where the air outlet duct 152 is located at the air outlet 152a, so that the airflow from the same plane can be realized. The effect of air in and out is suitable for a variety of heat pump washing equipment, such as built-in dishwashers and other washing equipment that are covered on multiple sides (for example, built-in dishwashers only have the front where the door is open and are not blocked. In the following, "Front" both refers to the surface facing the user). Wherein, "the plane where the air inlet duct 151 is located at the air inlet 151a" means that the bottom wall 1511, the top wall 1512, the first side wall 1513, the second side wall 1514, and the third side wall 1515 are in the air inlet 151a section at the location. Similarly, "the plane where the air outlet duct 152 is located at the air outlet 152a" refers to the section of the air outlet duct at the air outlet 152a.

In some embodiments, the ratio of the area of the air outlet 152a to the area of the air inlet 151a is less than or equal to 1:3. When the above area ratio is used, the outlet speed of the air flowing out of the air outlet 152a is three times or more the air inlet speed of the air introduced from the air inlet 151a, thereby reducing the situation of partial short-circuiting of the inlet and outlet air (that is, from the air outlet 151a) The air flow out of 152a quickly reverses into the air inlet 151a), so that the heat exchange efficiency of the evaporator 144 can be improved.

In some embodiments, the ratio of the area of the air outlet 152a to the area of the air inlet 151a is 1:3˜1:7. In some embodiments, the ratio of the area of the air outlet 152a to the area of the air inlet 151a is less than or equal to 1:4. In some embodiments, the ratio of the area of the air outlet 152a to the area of the air inlet 151a is less than or equal to 1:5.

In some embodiments, referring to FIGS. 5-8 , the base 120 generally includes an air intake guide 122 . The air inlet guide plate 122 is connected to the base body 121 and is disposed adjacent to the door body 160 . The air inlet guide 122 is also connected to the air inlet duct 151 , specifically connected to the bottom wall 1511 , the top wall 1512 , the second side wall 1514 and the third side wall 1515 of the air inlet duct 151 for covering the air inlet 151 a . The air inlet guide plate 122 is provided with a plurality of air inlet holes 122a, and the air inlet holes 122a communicate with the air inlet 151a.

In addition, the base 120 further includes a first air outlet guide plate 123 . Wherein, the first air outlet guide plate 123 is connected to the base body 121 and is disposed adjacent to the door body 160. The first air outlet guide plate 123 is disposed on one side of the air inlet guide plate 122 and is substantially parallel to the air inlet guide plate 122 . The first air outlet guide plate 123 is disposed corresponding to the air outlet air duct 152 and covers the air outlet 152a. The first air outlet guide plate 123 is also provided with a plurality of first air outlet holes 123a, and the first air outlet holes 123a communicate with the air outlet 152a. Therefore, the air flow can enter the air inlet duct 151 through the air inlet hole 122 a, and then conduct heat exchange with the evaporator 144 . The heat-exchanged airflow can flow to the air outlet duct 152, and flow out of the heat pump type washing device through the air outlet 152a.

In some embodiments, the number of the first air outlet guide plates 123 is two, and the two first air outlet guide plates 123 are located on two sides of the air inlet guide plate 122 respectively.

By arranging the air inlet guide plate 122 and the first air outlet guide plate 123, the entire heat pump type washing apparatus can realize the air inlet and outlet from the base 120 (especially the front of the base). Therefore, the heat pump type washing equipment can enter and exit the air from the same side, which improves the user experience and is suitable for embedded washing equipment.

In some embodiments, for example, referring to FIG. 7 , the air inlet guide plate 122 and the first air outlet guide plate 123 can be coplanar and integrally formed. In other words, the air inlet guide plate 122 and the first air outlet guide plate 123 can be made of multiple air inlet/outlet holes on the same guide plate, as long as the air inlet holes are located in the middle and the air outlet holes are located at the side.

In some embodiments, the air inlet guide plate 122 is arranged on the base 120 , and the air outlet guide plate can also be arranged on the door body 160 . For example, referring to FIGS. 9-10 , in some embodiments, the door body 160 generally includes a door panel (wherein the door panel includes a first door panel 161 and a second door panel 162 disposed oppositely). In addition, the door body 160 further includes a second air outlet guide plate 163 connected with the door body 160 and a wind blocking part 164 . Wherein, the second air outlet guide plate 163 is arranged on the side of the door panels (the first door panel 161 and the second door panel 162 ), and is arranged spaced apart from the wind shielding portion 164 . An air guide channel 165 is formed between the second air outlet guide plate 163 , the air blocking portion 164 and the door panels (the first door panel 161 and the second door panel 162 ). The second air outlet guide plate 163 is provided with a plurality of second air outlet holes 163 a , and the second air outlet holes 163 a , the air guide passage 165 and the air outlet 152 a can communicate with each other through, for example, the transition air passage 166 . Wherein, the second air outlet guide plate 163 may be substantially perpendicular to the air inlet guide plate 122 , so that the air inlet direction and the final air outlet direction of the entire heat pump washing apparatus are substantially vertical.

With this arrangement, the final air outlet position of the heat pump washing equipment is set at the side of the door body, therefore, the airflow after heat exchange by the evaporator 144 finally flows out from the side of the door body 160, and the air inlet of the heat pump washing equipment The distance between the air and the air outlet is relatively large, and the air inlet direction of the heat pump washing equipment is roughly perpendicular to the final air outlet direction, which can greatly reduce the short circuit of the air flow, and can make the area of the air inlet and outlet not affected by the above proportions. limit. In addition, after a long distance of flow, the wind speed of the final air outlet from the heat pump washing equipment is greatly reduced, which can reduce the impact of the air on the user and improve the user experience, which is suitable for embedded washing equipment.

Further referring to FIGS. 5-8 , in some embodiments, the compressor 141 , the condenser 142 , and the throttling device 143 are all disposed on the base 120 and located outside the air inlet air duct 151 . The compressor 141 is connected to the condenser 142 and the evaporator 144 , and the refrigerant can circulate and flow along the circuit formed by the compressor 141 , the condenser 142 and the evaporator 144 . With this structure, when the condenser 142 , the throttling device 143 and the evaporator 144 are all arranged on the base 120 , the structure of the heat pump type washing apparatus 100 can be made more compact.

When the heat pump system 140 is working, the refrigerant is compressed into a high-temperature gas in the compressor 141, and then sent from the compressor 141 to the condenser 142, and liquefied into a low-temperature liquid in the condenser 142, and then the low-temperature refrigerant can pass through the Control of flow device 143 enters vaporizer 144 to form low temperature gas. After the heat exchange process of the evaporator 144, the refrigerant enters the compressor 141 again, thereby forming a heat pump cycle.

In addition, the condenser 142 is also disposed adjacent to the suction pump 133 and connected to the suction pump 133, whereby the water cup 131, the condenser 142, the suction pump 133, and the spray arm 132 can form a circulation loop of washing water.

11-12 illustrate the structure of the condenser 142 in some embodiments of the present application. Referring to FIGS. 11-12 , in some embodiments, the condenser 142 may generally include a condenser housing 1421 , a water passage 1422 , and a refrigerant passage 1423 . Wherein, the water channel 1422 accommodates the water flow, and the refrigerant channel 1423 accommodates the refrigerant, and the refrigerant passage 1423 can be at least partially accommodated or embedded in the water channel 1422 .

In some embodiments, the condenser housing 1421 is generally square. Of course, in other embodiments, the condenser housing 1421 may also be implemented in other shapes. The condenser housing 1421 includes a condenser bottom plate 1421a substantially parallel to the horizontal plane and a condenser top plate 1421b disposed parallel to and opposite to the condenser bottom plate 1421a. The condenser housing 1421 may include a central portion and an edge portion.

In some embodiments, referring to FIG. 13 , a receiving space is provided inside the condenser housing 1421 . The water channel 1422 is generally a tubular structure with a tube wall, and the water channel 1422 is at least partially accommodated in the condenser housing 1421 .

Referring further to FIG. 12 , specifically, the water channel 1422 may generally include a water inlet 1422a, a water outlet 1422b, and at least two water channel main bodies 1422c arranged in layers. Wherein, the water inlet 1422a may be generally disposed at the center portion of the condenser casing 1421a, and the water outlet 1422b may be generally disposed at the edge portion of the condenser casing 1421a. 12-13, each water channel main body 1422c includes a water inlet end and a water outlet end, the water inlet end of each water channel main body 1422c is connected with the water inlet 1422a, and the water outlet end of each water channel main body 1422c is connected to the water inlet 1422a. The water outlet 1422b communicates. In some embodiments, the water channel 1422 may be provided with a water inlet pipe communicating with the water inlet 1422a and a water outlet pipe communicating with the water outlet 1422b. Each water channel body 1422c can be connected to the water inlet pipe and the water outlet pipe, respectively.

In some embodiments, each water channel body 1422c is an independent layered pipe, which can be layered along the water flow direction. The plane where each water channel body 1422c is located is substantially parallel, and the plane where the condenser bottom plate 1421a is located is roughly parallel. In this way, the water flow entering through the water inlet 1422a can be uniformly entered through, for example, the water inlet pipe located at the center, and then divided into multiple channels into the respective water channel main bodies 1422c, and finally collected through the water outlet pipe located at the edge and flows out of the water outlet 1422b to form flow in parallel. Using the multi-channel water channel main body 1422c in parallel can reduce the power requirement of the water pump, and at the same time can reduce the resistance of the water channel 1422 to water, so that the inner diameter of the water channel 1422 can be reduced, thereby further reducing the volume of the condenser 142 .

In this embodiment, the number of the water channel main bodies 1422c is three. Of course, in other embodiments, the number of the water channel bodies 1422c may be set to different numbers according to heat exchange requirements, for example, two, four or more than four. The present application does not specifically limit the number of the water channel bodies 1422c.

Referring further to Figures 12-13 and 15, in some embodiments, each water channel body 1422c has a generally planar helical shape. In some embodiments, each water channel body 1422c is embodied in a planar helical structure of an Archimedes spiral. The plane spiral structure is adopted, so that when the water flows in each water channel main body 1422c, its speed will change from the water inlet end to the water outlet end, so that the refrigerant channel 1423 accommodated in the water channel 1422 can be adjusted The wall of the tube can be scoured by the variable-speed water flow, thereby improving the heat exchange effect.

Each water channel body 1422c has a central portion and an edge portion. In some embodiments, the water inlet end of each water channel body 1422c is disposed at the center portion, and the water outlet end of each water channel body 1422c is disposed at the edge portion. In this way, the water inlet end of each water channel body 1422c can communicate with the water inlet port 1422a at the central portion, and the water outlet end of each water channel body 1422c can communicate with the water outlet port 1422b at the edge portion. When this structure is adopted, since the water inlet 1422a and the water inlet pipe are arranged in the central part, it can further reduce the resistance of the water channel main body 1422c to the water flow, thereby increasing the water flow speed.

Of course, in other embodiments, the positions of the water inlet 1422a and the water outlet 1422b can be reversed, that is, the water inlet 1422a can be arranged at the edge portion, and the water outlet 1422b can be arranged at the central portion. At this time, correspondingly, the water inlet end of the water channel main body 1422c is arranged at the edge portion, and the water outlet end is arranged at the central portion. With this structure, the heat exchange effect of the condenser 142 can be increased.

The above-mentioned embodiment is an embodiment in which the water channel 1422 is a tubular structure and is embedded in the condenser shell 1421 . In this embodiment, the assembled refrigerant channel 1423 and the water channel 1422 can be put into the mold together, and the condenser shell 1421 can be formed by injection molding. Of course, the condenser shell 1421 can also be formed separately, and then the water channel 1422 can be embedded in the condenser shell 1421.

Of course, in other embodiments, the water channel 1422 can also be a channel structure formed in the condenser shell 1421 . For example, in some embodiments, a channel structure suitable for the water channel 1422 may be formed by hollowing out the inside of the condenser shell 1421 by a suitable method such as melting or stamping. The present application does not specifically limit the forming manner of the water channel 1422 herein.

In some embodiments, referring to FIG. 14 , the refrigerant passage 1423 may be a tubular structure, for example, may be made of a metal pipe (eg, copper pipe). The shape of the refrigerant channel 1423 is substantially similar to that of the water channel 1422, and is built into the water channel 1422 to form a closed heat exchange structure. Wherein, the refrigerant channel 1423 can be, for example, the structure of a refrigerant pipe, and the refrigerant pipe is built into an injection mold whose shape matches the shape of the water channel 1422, and the refrigerant channel 1423 and the plastic in the mold are integrally formed by injection molding, and then the plastic The spiral water channel 1422 is formed by etching or melting. Of course, in other embodiments, the refrigerant channel 1423 can be assembled with the water channel 1422 in other ways.

The refrigerant passage 1423 generally includes a refrigerant inlet 1423a, a refrigerant outlet 1423b, a first refrigerant passage body 1423c, a second refrigerant passage body 1423d, and at least one third refrigerant passage body 1423e. In some embodiments, referring to FIG. 11 , the refrigerant inlet 1423a extends through the condenser bottom plate 1421a, and the refrigerant outlet 1423b extends through the condenser top plate 1421b. Therefore, the refrigerant will flow from the bottom to the top of the condenser 142 . The water inlet 1422a and the water outlet 1422b both extend through the top plate 1421b of the condenser. Therefore, the water flows from the top of the condenser 142 to the bottom and then flows out through the water outlet 1422b at the top. Therefore, the flow direction of the refrigerant is opposite to the flow direction of the water and flows in the opposite direction, thereby enhancing the heat exchange effect between the water and the refrigerant.

The first refrigerant passage body 1423c is connected to the refrigerant inlet 1423a. The second refrigerant passage body 1423d is connected to the refrigerant outlet 1423b. At least one third refrigerant passage main body 1423e is connected between the first refrigerant passage main body 1423c and the second refrigerant passage main body 1423d. The first refrigerant channel body 1423c, the second refrigerant channel body 1423d, and each of the third refrigerant channel bodies 1423e are in a plane spiral shape and are stacked on top of each other. The spiral trajectory of the first refrigerant channel main body 1423c , the second refrigerant channel main body 1423d , and each third refrigerant channel main body 1423e is similar to the spiral trajectory of the corresponding water channel main body 1422c in the water channel 1422 .

15, each of the first refrigerant passage body 1423c, the second refrigerant passage body 1423d, and the third refrigerant passage body 1423e includes a center portion and an edge portion. The refrigerant inlet 1423a is provided in the center of the condenser casing 1421, and the center portion of the first refrigerant passage body 1423c is connected to the refrigerant inlet 1423a. The refrigerant outlet 1423b is provided at the edge of the condenser casing 1421, and the edge portion of the second refrigerant passage body 1423d is connected to the refrigerant outlet 1423b. The central portion of each third refrigerant passage body 1423e is connected to the corresponding central portion of the adjacent second refrigerant passage body 1423d or the third refrigerant passage body 1423e. The edge portion of each third refrigerant passage body 1423e is connected to the corresponding edge portion of the adjacent first refrigerant passage body 1423c or the third refrigerant passage body 1423e.

In this way, each layer of refrigerant channel main body (the first refrigerant channel main body 1423c, the second refrigerant channel main body 1423d, and the at least one third refrigerant channel main body 1423e) of each layer of refrigerant channel 1423 forms a series pipeline, which can The resistance received by the refrigerant when flowing in the refrigerant passage 1423 is reduced, the structure is simple, and the manufacture is convenient.

In the embodiment shown in FIG. 14 , corresponding to the structure of the water channel 1422 , the refrigerant channel 1423 generally includes three layers of refrigerant channel main bodies, namely, a first refrigerant channel main body 1423 c and a second refrigerant channel connected in series in series. main body 1423d, and a third refrigerant passage main body 1423e. Of course, in other embodiments, the number of the third refrigerant channel bodies 1423e may also be set according to actual heat exchange requirements. At this time, the central portion of the third refrigerant passage main body 1423e is connected to the central portion of the adjacent second refrigerant passage main body 1423d, and the edge portion of the third refrigerant passage main body 1423e is connected to the adjacent edge portion of the first refrigerant passage main body 1423c connect.

In some embodiments, the inner diameter of the water channel is less than 20 mm, and the inner diameter of the refrigerant channel is less than 6 mm. In some embodiments, the inner diameter of the water channel is in the range of 11-20 mm, and the inner diameter of the refrigerant channel is in the range of 3-6 mm. In the related art, the inner diameter of the water pipe is usually 25-32 mm, and the inner diameter of the refrigerant pipe is usually 7-9 mm. If the inner diameter is further reduced, a huge resistance will be generated to the water in the water pipe or the refrigerant in the refrigerant pipe, resulting in poor heat exchange effect of the water or the refrigerant. In the present application, since the cooling medium channel 1423 adopts a series structure, and the water channel 1422 adopts a multi-channel parallel structure, the resistance of the channel to water/refrigerant can be reduced as much as possible, so the inner diameters of the water channel 1422 and the cooling medium channel 1423 can be set to smaller, so that the overall volume of the condenser 142 can be reduced.

The throttling device 143 can be implemented by, for example, a throttling valve or the like.

In some embodiments, referring further to FIGS. 5-8 , the evaporator 144 may be a finned tube heat exchanger that includes a plurality of spaced fins 1441 . The evaporator 144 can be disposed in the air inlet duct 151 and adjacent to the air inlet 151a. The evaporator 144 is used to exchange heat between the air entering the air inlet duct 151 through the air inlet 151a and the refrigerant in the evaporator 144, and the air after heat exchange will flow out of the air outlet duct 152 through the air outlet 152a.

In some embodiments, the fins 1441 of the evaporator 144 are spaced apart from each other, and the temperature of the refrigerant is reduced to be lower than the ambient temperature after being controlled by the throttling device 143 . Therefore, when the humidity of the airflow entering the evaporator is relatively high, the water vapor in the airflow is easily condensed on the evaporator 144 to form condensed water, and flows down through the gaps between the fins 1441 . Therefore, in some embodiments of the present application, a water receiving tray 124 is further provided on the base 120 , wherein the water receiving tray 124 can be connected with the base body 121 .

8 , the evaporator 144 is disposed on the water receiving tray 124 , and the fins 1441 of the evaporator 144 can be disposed on the water receiving tray 122 inclined relative to the horizontal plane or the base body 121 . In some embodiments, the angle of inclination between the fins 1441 of the evaporator 144 and the base body 121 is less than or equal to 25 degrees. In some embodiments, the angle of inclination between the fins 1441 of the evaporator 144 and the base body 121 ranges from about 5-25 degrees. The inclined arrangement of the fins 1441 of the evaporator 144 makes it easier for the condensed water on the evaporator 144 to flow down from the evaporator 144 and enter the water receiving tray 124 .

Referring further to FIGS. 16-17 , in some embodiments of the present application, the water receiving tray 124 may generally include a water receiving tray bottom plate 1241 and a drainage groove 1242 .

The bottom plate 1241 of the water receiving tray can be connected to the base body 121 . The bottom plate 1241 of the water receiving tray is inclined relative to the base body 121 . Specifically, the bottom plate 1241 of the water receiving tray may include a first side 1241a close to the air inlet 151a and a second side 1241b away from the air inlet 151a. The vertical distance between the first side 1241 a and the base body 121 is greater than the vertical distance between the second side 1241 b and the base body 121 . In other words, the bottom plate 1241 of the water receiving tray has an inclined slope as a whole, and the horizontal plane of the first side 1241a close to the air inlet 151a is higher than the horizontal plane of the second side 1241b away from the air inlet 151a, and the outer side is high and the inner side is low. .

The drainage groove 1242 is also connected to the base body 121 . The drainage groove 1242 is disposed adjacent to the second side 1241b of the bottom plate 1241 of the water receiving tray. The drainage groove 1242 may also be provided with a drainage hole 1242a. Therefore, the condensed water flowing down from the evaporator 144 will first fall onto the drain pan bottom plate 1241 , and flow along the drain pan bottom plate 1241 from the first side 1241 a to the second side 1241 b , and fall into the drain groove 1242 . Subsequently, the base 120 may flow out through the drainage holes 1242 a on the drainage groove 1242 .

In some embodiments, referring to FIG. 8 , the heat pump system 140 may also include a connecting pipe 146 . The connecting pipe 146 is arranged in the drainage groove 1242 and connects the condenser 142 and the throttling device 143 . When the heat pump system 140 is working, after the refrigerant passes through the condenser 142 to heat the water, it still has a relatively high temperature before entering the throttling device 143 . Such a connecting pipe 146 is arranged between the throttling device 143 and the condenser 142, and the connecting pipe 146 is placed in the drainage groove 1242. The excess heat of the refrigerant before entering the throttling device 143 can be evaporated and accumulated in the drainage groove 1242. the condensed water, further reducing the amount of condensed water.

In some embodiments, referring to FIG. 17 , the washing cycle system 130 further includes a drain pump 134 , a drain pipe 135 and a drain port 137 . The drain pump 134 is located at the bottom of the water cup 131 and is connected to the water cup 131 and the drain port 137 . The drain pipe 135 is connected to the water cup 131 and the drain hole 1242 a of the drain groove 1242 . The water entering the drain groove 1242 can enter the bottom of the water cup 131 through the drain pipe 135, and then be pumped to the drain port 137 by the drain pump 134 at the bottom of the water cup 131 during the draining process of the washing process, thereby reducing the accumulation of condensed water. possibility.

In some embodiments, the vertical distance between the bottom of the drain pipe 135 and the water cup 131 and the base body 121 is greater than the vertical distance between the bottom of the water cup 131 and the base body 121 . The vertical distance between the bottom of the drain pipe 135 and the water cup 131 and the base body 121 exceeds the vertical distance between the bottom of the water cup 131 and the base body 121 by 5-10 mm. In other words, the bottom of the connection is 5-10 mm higher than the bottom of the water cup 131 . At this time, a check valve 136 may be provided between the drain pipe 135 and the water cup 131 . The one-way valve 136 is provided on the drain pipe 135 , which can allow the water in the drain groove 1242 to flow to the water cup 131 , but does not allow the water in the water cup 131 to flow into the drain groove 1242 in the reverse direction. Especially when the washing device is in normal operation, the water cup 131 is usually filled with water to circulate the dishes for washing. When the heat pump process and the washing process are performed at the same time, condensed water usually accumulates at the drain groove 1242 , and at this time, the water level of the water cup 131 communicated with the drain groove 1242 through the drain pipe 135 is usually higher than the surface of the drain groove 1242 . By arranging the one-way valve 136, the possibility of the water cup 131 flowing into the drainage groove 1242 in the reverse direction can be effectively reduced.

In some embodiments, referring further to FIGS. 5-8 , the heat pump system 140 further includes an exhaust air assembly 145 . The exhaust assembly 145 is disposed on the base 120 and is located outside the air inlet duct 151 . Referring to FIG. 18 , the air exhaust assembly 145 is located at the rear side of the evaporator 144 along the air inlet direction X1 of the air inlet duct 151 . The air exhaust assembly 145 communicates with the air inlet duct 151 and the air outlet duct 152 . The compressor 141 , the condenser 142 , and the throttling device 143 are all disposed on the side of the air exhaust assembly 145 away from the air inlet air duct 151 , and are disposed adjacent to the suction pump 133 . The other side of the air exhaust assembly 145 is the air inlet duct 151 and the evaporator 144, and the evaporator 144 and the air inlet duct 151 are adjacent to the front of the base 120, thereby facilitating heat exchange with the airflow.

In addition, the top of the evaporator 144 may be disposed close to the exhaust assembly 145 , and the bottom of the evaporator 144 may be disposed away from the exhaust assembly 145 . With this arrangement, the condensed water on the evaporator 144 can more easily flow down from the evaporator 144 into the water receiving tray 124 .

In some embodiments, referring to FIG. 18 , the air exhaust assembly 145 has an air inlet 1451 and an air outlet 1452 . The air exhaust assembly 145 communicates with the air inlet air duct 151 through the air inlet port 1451 , and communicates with the air outlet air duct 152 through the air outlet port 1452 . In some embodiments, the plane where the air inlet 1451 is located is substantially perpendicular to the plane where the air outlet 1452 is located. In addition, the air outlet duct 152 is substantially L-shaped, and may include a first sub-channel 152b and a second sub-channel 152c. The first sub-channel 152b is communicated with the exhaust port 1452 . The second sub-channel 152c communicates with the first sub-channel 152b and is substantially vertical, and the air outlet 152a of the air outlet duct 152 is located on the second sub-channel 152c. With the cooperation of the exhaust air assembly 145 and the air outlet air duct 152 , the airflow entering the air intake air duct 151 can pass through the air exhaust assembly 145 and the air outlet air duct 152 to achieve two 90-degree temperature changes after passing through the heat exchange of the evaporator 144 . Steering to achieve reverse flow of incoming and outgoing air.

In some embodiments, referring to FIG. 18 , the number of air inlet air ducts 151 may be one, and the number of air exhaust assemblies 145 may be two (for example, it may be referred to as a first air exhaust assembly 145a and a second air exhaust assembly 145b ) ), and the number of outlet air ducts 152 is set to two correspondingly. In some embodiments, the air inlet direction X1 of the air inlet duct 151 is substantially parallel to the air outlet direction X2 of the air inlet air duct 151 , and the first air exhaust assembly 145a and the second air exhaust assembly 145b are disposed at intervals on the first side The outside of the wall 1513 is communicated with the air inlet duct 151 , and the first air exhaust assembly 145a and the second air exhaust assembly 145b are communicated with the two air outlet air ducts 152 in one-to-one correspondence. The two air outlet air ducts 152 may be respectively located on opposite sides of the air inlet air duct 151 along the extending direction of the first side wall 1513 of the air inlet air duct 151 . Specifically, one air outlet duct 152 may be located outside the second side wall 1514 and adjacent to the second side wall 1514 , and another air outlet duct 152 may be located outside the third side wall 1515 and adjacent to the third side wall 1515 Side wall 1515 is provided. The use of multiple air exhaust assemblies 145 and multiple air outlet air ducts 152 can improve the air outlet efficiency of the airflow.

In some embodiments, the exhaust air assembly 145 may include a centrifugal fan. The airflow can enter the centrifugal fan from the axial direction of the impeller of the centrifugal fan, turn 90 degrees through the centrifugal fan, and flow out from the casing (volute) of the centrifugal fan into the air outlet duct 152 . Of course, in other embodiments, the air exhaust assembly 145 may also include other fans, such as axial fans. The application does not specifically limit the type of the air exhaust assembly 145 .

Referring further to FIG. 18 , in some embodiments, when the number of air exhaust assemblies 145 is two, air guide elements 153 may also be provided in the air inlet air duct 151 . Wherein, the guide element 153 is adjacent to the evaporator 144 and is located at the rear side of the evaporator 144 along the air inlet direction X1 of the air inlet duct 151 . By arranging the guide elements 153, the airflow after passing through the evaporator 144 can be guided, so as to enter the corresponding exhaust components 145 along both sides respectively, thereby making the airflow entering the exhaust components 145 more uniform and improving the exhaust air. Exhaust effect of component 145. Of course, in other embodiments, such a guide element 153 may not be provided, as long as it is ensured that the airflow entering the evaporator 144 can enter the corresponding air exhaust assembly 145 relatively uniformly. This application does not specifically limit this.

In some embodiments, the air guide element 153 may be disposed in the middle of the first side wall 1513 of the air inlet duct 151 .

In some embodiments, referring to FIG. 18 , the flow guiding element 153 includes a first inclined surface 153 a and a second inclined surface 153 b located between the evaporator 144 and the first side wall 1513 and inclined relative to the first side wall 1513 . The side of the first inclined surface 153a adjacent to the evaporator 144 and the side of the second inclined surface 153b adjacent to the evaporator 144 intersect with each other. In some embodiments, the first inclined surface 153a and the second inclined surface 153b are both connected to the first side wall 1513 and the evaporator 144, and the first inclined surface 153a and the second inclined surface 153b are both solid structures without any Through holes, as shown in FIG. 18 , a substantially triangular cross-section can be formed and the air inlet duct 151 on the rear side of the evaporator 144 is divided into two independent channels.

Of course, in other embodiments, through holes may be provided on the first inclined surface 153a and the second inclined surface 153b, such as baffles with holes, so that it is also feasible to partially cut off the air inlet duct 151 on the rear side of the evaporator 144 . As long as it is ensured that the airflow can enter the first air exhaust assembly 145a and the second air exhaust assembly 145b uniformly.

In the embodiment shown in FIG. 18 , the air inlet direction X1 of the air inlet duct 151 is substantially parallel to the air outlet direction X2 of the air inlet air duct 151, and the first air exhaust assembly 145a and the second air exhaust assembly 145b are along the inlet air direction X2. The air inlet direction X1 of the air duct 151 is located at the rear side of the evaporator 144 and is disposed on the first side wall 1513 . However, in other embodiments, the first air exhaust assembly 145a and the second air exhaust assembly 145b may also be arranged at other positions.

For example, referring to FIGS. 19-20 , the air inlet direction X1 of the air inlet duct 151 may be substantially perpendicular to the air outlet direction X2 of the air inlet air duct 151 . At this time, the first air exhaust assembly 145a and the second air exhaust assembly 145b can be respectively disposed on both sides of the air intake air duct 151 along the air outlet direction X2 of the air intake air duct, and the first air exhaust assembly 145a and the second air exhaust assembly 145a and the second air exhaust assembly 145a and the second air exhaust assembly 145a and the second air exhaust assembly The air components 145b are all communicated with the air inlet air duct 151 . When this structure is adopted, since the first air exhaust assembly 145a and the second air exhaust assembly 145b are not disposed on the rear side of the air intake duct 151 along the air intake direction X1, but are disposed on the left and right sides of the air intake duct 151 Therefore, the space occupation on the rear side of the air inlet duct 151 on the base 120 can be reduced, and the layout of the various components on the base 120 can be more reasonable.

Referring further to FIGS. 19-20 , in some embodiments, the first exhaust element 145 a is disposed on the second side wall 1514 , and the second exhaust element 145 b is disposed on the third side wall 1515 . Correspondingly, the base 120 is further provided with two air outlet air ducts 152 , and the two air outlet air ducts 152 are respectively located on both sides of the air inlet air duct 151 along the air outlet direction X2 of the air inlet air duct 151 .

The first air exhaust assembly 145a and the second air exhaust assembly 145b both have an air inlet 1451 and an air outlet 1452, and the first air exhaust assembly 145a and the second air exhaust assembly 145b pass through the corresponding air inlet 1451 and the air inlet duct 151 respectively. The first air exhaust assembly 145a and the second air exhaust assembly 145b are also communicated with the corresponding air outlet air duct 152 through the corresponding air outlet 1452, and the plane where the air inlet 1451 is located is substantially perpendicular to the plane where the air outlet 1452 is located. . In this way, the air flow through the first air exhaust assembly 145a and the second air exhaust assembly 145b can achieve 90-degree reversal and then the air is discharged, and then the plane of the air inlet duct 151 at the air inlet 151a can be adjusted to each other. The planes of the air outlet ducts 152 at the corresponding air outlets 152a are substantially parallel.

In some embodiments, the first air exhaust assembly 145a and the second air exhaust assembly 145b can also be implemented by means of centrifugal fans. In addition, each air outlet duct 152 is generally linear, so that the layout space requirement on the base 120 can be met. Among them, in the embodiment shown in Figures 19-20, the air inlet guide plate and the air outlet guide plate are both arranged on the base, and their specific settings are similar to the embodiment shown in Figures 5-8. The descriptions of the air guide plate 122 ″ and the first air outlet guide plate 123 are not repeated here.

In some embodiments, referring to FIGS. 21-22 , when the first exhaust air assembly 145a and the second air exhaust assembly 145b can be respectively disposed on both sides of the air intake air duct 151 along the air outlet direction X2 of the air intake air duct, Similarly, the air inlet guide plate can also be arranged on the base, and the air outlet guide plate can be arranged on the door body. The specific arrangement is similar to the embodiment shown in Figs. 9-10. The description of the "second air outlet guide plate 163" will not be repeated here.

In the above-mentioned embodiment, the air exhaust assembly 145 is realized by a centrifugal fan. At this time, the air inlet air duct 151 and the air outlet air duct 152 are two independent air ducts, and the air intake air The airflow in the air duct 151 is guided to the air outlet duct 152, and the plane of the air inlet duct 151 at the air inlet 151a is substantially parallel to the plane of the air outlet duct 152 at the air outlet 152a.

However, in other embodiments, the air exhaust assembly 145 may also be implemented in other ways, for example, a cross-flow fan may be used. 23-25, in some embodiments of the present application, the heat pump type washing device 200 may generally include a casing, a base 220 fixedly connected to the casing and forming an inner tank with the outer casing, and a washing circulation system accommodated in the inner tank 230 and the heat pump system 240, the air duct 250 arranged on the base 220, and the door 260 connected to the housing. Therein, the heat pump system 240 may generally include a compressor 241 , a condenser 242 , a throttling device 243 , an evaporator 244 and an exhaust air assembly 245 interconnected to form a circuit.

The structures and connection relationships of the base 220 , the washing cycle system 230 and the door body 260 can be referred to the descriptions in the embodiments shown in FIGS. 5-8 . The base 220 can also include a water receiving tray, and the specific structural arrangement and the connection and positional relationship between the evaporator 244 and the water receiving tray can be referred to the descriptions in the embodiments shown in FIGS. 5-8 .

In the embodiment shown in FIGS. 23-25 , the exhaust air assembly 245 may be a cross-flow fan. At this time, the air inlet air duct and the air outlet air duct can be integrated together, that is, the same air duct 250 realizes the functions of air inlet and air outlet.

The evaporator 244 and the cross-flow fan are both disposed in the air duct 250 , and the cross-flow fan is located on the rear side of the evaporator 244 along the air intake direction of the airflow (or the air intake direction of the air duct 250 ). In addition, the air duct 250 includes an air inlet 251a and an air outlet 252a, and the plane of the air duct 250 at the air inlet 251a is substantially perpendicular to the plane of the air duct 250 at the air outlet 252a. In other words, the air inlet direction of the air entering the air duct 250 is substantially perpendicular to the air outlet direction of the air flowing out of the air inlet air duct 250 . Therefore, by using a cross-flow fan, the airflow can enter from the front of the heat pump washing machine and flow out from the bottom of the heat pump washing machine, so that the opening for air outlet can be arranged at the bottom instead of the bottom of the base or the door. On the front, the aesthetics of the whole heat pump washing equipment can be improved and the user experience can be improved. Moreover, by arranging the air outlet at the bottom of the base, the area of the air outlet can be set larger, so as to realize large-area air outlet and improve air outlet efficiency.

Referring further to FIGS. 23-25 , in some embodiments, the air duct 250 may generally include an air duct floor 253 and a plurality of air duct side panels 254 connected to the air duct floor 253 . An air inlet 251a is opened on one of the plurality of air duct side plates 254, and an air outlet 252a is opened on the air duct bottom plate 253, so that the air can be entered from one side of the air duct 250, and the air can be drawn from the bottom of the air duct 250. wind effect.

Further referring to FIGS. 23-25 , in some embodiments, the compressor 241 , the condenser 242 and the throttling device 243 are all provided on the base 220 . In addition, the compressor 241 , the condenser 242 and the throttling device 243 are all located on the side of the cross-flow fan away from the evaporator 244 and outside the air duct 250 . Specifically, the compressor 241 , the condenser 242 and the throttling device 243 are all located outside another air duct side plate 254 on the air duct 250 that is opposite to the air duct side plate 254 with the air inlet 251 a . By adopting this kind of structure arrangement, the arrangement structure of the components on the base 220 can be made compact, and the volume of the whole heat pump type washing apparatus 200 can be reduced.

In the embodiments shown in FIGS. 1-25 , the heat pump system (including the evaporator) is arranged on the base, which can make the overall structure of the heat pump system relatively compact. However, in other embodiments, the evaporator of the heat pump system may also be provided on the door body.

In some embodiments of the present application, referring to FIGS. 26-28 , the heat pump type washing device 300 may generally include a casing, a base 320 fixedly connected to the casing and forming an inner tank with the outer casing, and a washing cycle system accommodated in the inner tank 330 and the heat pump system 340, the air duct 350 arranged on the base 320, and the door 360 connected to the housing. Among them, the heat pump system 340 may generally include a compressor 341 , a condenser 342 , a throttling device 343 , an evaporator 344 and an exhaust air assembly 345 interconnected to form a circuit.

The structure and connection relationship of the base 320 and the washing cycle system 330 can generally be referred to the descriptions in the embodiments shown in FIGS. 5-8 , which will not be repeated here.

When the evaporator 344 is disposed on the door body 360 , the air flow can enter the heat pump type washing device 300 from the base 320 , pass through the evaporator 344 for heat exchange, and the heat-exchanged air flow can flow out from the door body 360 . Alternatively, the airflow may enter the heat pump type washing apparatus 300 from the door body 360 , pass through the evaporator 344 for heat exchange, and the heat-exchanged airflow may flow out from the base 320 . The working principle can be seen in FIG. 26, and the working principle is basically similar to the working principle shown in FIG. 1, and will not be repeated here.

Since the space of the door body 360 is usually large, arranging the evaporator 344 on the door body 360 can increase the heat exchange area of the evaporator 344, thereby ensuring the heat exchange effect. Furthermore, the power requirement for the exhaust air assembly can be reduced, so the noise that may be generated when the heat pump system is working can be reduced. Moreover, the base 320 does not need to carry too many components, which can provide a larger layout space for the components on the base 320 .

27-29 are schematic diagrams showing the specific structure of the heat pump type washing equipment using the schematic diagram shown in FIG. 26 in some embodiments of the present application. In the embodiment shown in FIGS. 27-29 , the air duct 350 may generally include a first air duct 351 and a second air duct 352 . Among them, one of the first air duct 351 and the second air duct 352 is an air inlet air duct, and the other is an air outlet air duct. The first air duct 351 is arranged on the base 320 , and the second air duct 352 is arranged on the door body 360 .

Specifically, referring to FIGS. 27 and 29 , the base 320 includes a base body 321 and a first air deflector 322 connected with the base body 321 . The first air guide plate 322 is provided with a plurality of first air guide holes 322 a, and the first air guide holes 322 a can communicate with the first air duct 351 . The first air duct 351 may include a first air duct bottom plate (not shown) disposed on the base 320 and a side plate (not shown) connected to the first air duct bottom plate and enclosing a receiving space.

The air exhaust assembly 345 can be disposed on the base 320 and disposed adjacent to the first air guide hole 322a. The air exhaust assembly 345 has an air inlet (not shown) and an air outlet 3452 . Wherein, the air inlet is communicated with the air inlet duct, and the air outlet 3452 is communicated with the air outlet duct. For example, when the first air duct 351 is an air inlet air duct and the second air duct 352 is an air outlet air duct, the air inlet is communicated with the first air duct 351 , and the air outlet 3452 is communicated with the second air duct 352 . When the first air duct 351 is an outlet air duct and the second air duct 352 is an air inlet air duct, the air inlet is communicated with the second air duct 352 , and the air outlet 3452 is communicated with the first air duct 351 .

The compressor 341 , the condenser 342 and the throttling device 343 are all disposed on the base body 321 and are located away from the first air guide plate 322 of the air exhaust assembly 345 . The evaporator 344 is disposed in the second air passage 352 of the door body 360 . The air flow may enter the heat pump washing apparatus 300 through one of the first air duct 351 and the second air duct 352 (ie, the air inlet air duct), pass through the evaporator 344 for heat exchange, and the heat-exchanged air flow passes through the first air duct 352 . The other of the air duct 351 and the second air duct 352 (ie, the outlet air duct) flows out.

In some embodiments, referring to FIGS. 27 and 28 , the door body 360 may generally include a first door panel 361 , a second door panel 362 disposed opposite to the first door panel 361 , and connected to the first door panel 361 and the second door panel 362 the second wind deflector 363. Wherein, when the door body 360 is in the closed state, the distance between the first door panel 361 and the housing is greater than the distance between the second door panel 362 and the housing. In other words, the first door panel 361 faces the "front side" of the user, while the second door panel 362 faces the inner space or inner pot of the heat pump washing apparatus 300 . The second air guide plate 363 is disposed on the side of the door body 360 . The second air duct 352 is formed between the first door panel 361 , the second door panel 362 and the second air guide plate 363 . The second air guide plate 362 is provided with a second air guide hole 362a, and the air flow enters or flows out of the heat pump type washing device 300 through the second air guide hole 362a.

In some embodiments, when the door body 360 is in the closed state, the first air deflector 322 is substantially flush with the first door panel 361 .

In some embodiments, the air exhaust assembly 345 may be implemented in the form of a cross-flow fan. 27 and 29, when the exhaust air assembly 345 is a cross-flow fan, the first air duct 351 is an air outlet air duct, and the second air duct 352 is an air inlet air duct. The air inlet of the cross-flow fan is communicated with the second air duct 352 , and the air outlet of the cross-flow fan is communicated with the first air duct 351 . Therefore, during operation, the air flow will enter the door body 360 from the second air guide hole 363a, exchange heat with the evaporator 344, and then be guided to the first air guide plate 322 through the cross-flow fan, and pass through the first air guide hole 322a. The heat pump type washing apparatus 300 flows out.

Of course, in other embodiments, the air exhaust assembly 345 may also be implemented in other manners. For example, in the embodiment shown in FIGS. 30-32 , the air exhaust assembly 345 can be implemented by a centrifugal fan. 30-31, when the air exhaust assembly 345 is a centrifugal fan, the first air duct 351 is an air inlet air duct, and the second air duct 352 is an air outlet air duct. The air inlet of the centrifugal fan communicates with the first air duct 351 , and the air outlet 3452 of the centrifugal fan communicates with the second air duct 352 . During operation, the air flow enters the heat pump washing device 300 from the first air guide hole 322a, is guided into the door body 360 by the centrifugal fan, exchanges heat with the evaporator 344, and then passes through the second air guide plate 363a. The second air guide holes 363a flow out of the heat pump type washing device 300 .

In the embodiments shown in FIG. 1 and FIG. 26 , the evaporator 344 is implemented in the form of a gas-liquid heat exchanger. However, in other embodiments, the heat pump system may also include other heat exchangers. For example, in the embodiment shown in FIG. 32 , the heat pump system 340 may further include a heat exchanger 346 . The evaporator 344 is disposed on the door body 360 . The heat exchanger 346 is disposed on the base 320 and communicates with the evaporator 344 . Wherein, the first cooling liquid and the second cooling liquid circulating in the heat exchanger 346 are provided, and the second cooling liquid can flow into the evaporator 344, so as to realize "liquid-liquid heat exchange". In addition, the heat pump system 340 may further include a circulating liquid pump 347 . The circulating liquid pump 347 is arranged on the base 320 and communicates with the heat exchanger 346 for pumping the second cooling liquid into the evaporator 344 . At this time, referring further to FIG. 33 , the compressor 341 and the condenser 342 are both disposed on the base 320 and located on the side of the air exhaust assembly 345 away from the first air guide plate 322.

When the heat pump type washing device 300 is working, the water can fall into the water cup 331 from the water return port 331a to realize filtration. The filtered water will pass through the water channels of the condenser 342 in sequence, and complete heat exchange with the refrigerant (the first cooling liquid) in the condenser 342 . At this time, the temperature of the water increases through the heat exchange of the condenser 342, while the temperature of the refrigerant decreases, and the heating process of the water is completed. The heated water can continue to be pumped to the spray arm through the suction and pumping action of the suction pump, and then sprayed from the spray arm to the inner tank to wash the items to be washed in the inner tank. The washed water falls into the water cup 331 through the water return port 331a again, and continues to circulate.

The cooling medium (first cooling liquid) cooled by the heat exchange of the condenser 342 enters the heat exchanger 346 after passing through the throttling device 343 , and exchanges heat with the second cooling liquid in the heat exchanger 346 . The first cooling liquid after heat exchange enters the compressor 341 and continues to be used for the subsequent water heating process. The second cooling liquid is pumped to the evaporator 344 located in the door body 360 by the action of the circulating water pump 347, and exchanges heat with the air flow in the evaporator 344, so that the temperature of the second cooling liquid is increased and the temperature of the air flow is lowered. . The increased temperature of the second coolant is returned to the heat exchanger 346 to continue the circulation.

Wherein, the heat exchanger 346 may be a plate heat exchanger. The first cooling liquid is a refrigerant, and the second cooling liquid is water. Of course, in other embodiments, the first cooling liquid and the second cooling liquid may also be implemented by using other cooling liquids.

A new heat exchanger 346 is added to the heat pump system. Since it adopts the liquid-liquid heat exchange method, the refrigerant does not need to be transported to the evaporator 344 located on the door, and the heat exchanger 346 located on the base 320 completes the cooling of the refrigerant. cycle. The second cooling liquid delivered to the evaporator 344 can be realized by using water, so the reliability of the refrigerant pipe can be ensured, and the loosening of the refrigerant pipe caused by frequent opening and closing of the evaporator 344 when the evaporator 344 is installed in the door body can be reduced. Moreover, the design has a simple structure and is relatively easy to implement.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims

A heat pump type washing equipment is characterized in that, comprises:

a base with an air inlet duct and an air outlet duct communicating with the air inlet duct, the air inlet duct has an air inlet, and the air outlet duct has an air outlet; and

Heat pump system, including:

an evaporator, which is arranged in the air inlet duct and adjacent to the air inlet, so that the air flow entering through the air inlet is used for heat exchange in the evaporator, and the air after heat exchange passes through the air inlet. outflow from the air outlet;

The plane of the air inlet duct at the air inlet is substantially parallel to the plane of the air outlet duct at the air outlet.
The heat pump type washing device according to claim 1, wherein the ratio of the area of the air outlet to the area of the air inlet is less than or equal to 1:3.
The heat pump type washing device according to claim 1, further comprising a door body rotatably arranged relative to the base, the door body comprising a door panel;

The base includes an air inlet guide plate, the air inlet guide plate is arranged adjacent to the door body, is connected with the air inlet air duct, and covers the air inlet port, and a plurality of air inlets are opened on the air inlet guide plate a hole, and the air inlet hole communicates with the air inlet;

The base also includes a first air outlet guide plate, the first air outlet guide plate is arranged on one side of the air inlet guide plate and is substantially parallel to the air inlet guide plate, and the first air outlet guide plate corresponds to the outlet air guide plate. The air duct is arranged and covered with the air outlet, and the first air outlet guide plate is provided with a plurality of first air outlet holes, and the first air outlet holes are communicated with the air outlet; or

The door body further includes a second air outlet guide plate and a wind shield connected with the door panel, the second air outlet guide plate is arranged on the side of the door plate, and is arranged at an interval from the wind shield portion, and the second air outlet guide plate is arranged at a distance from the wind shield portion. The second air outlet guide plate is perpendicular to the air inlet guide plate; an air guide channel is formed between the second air outlet guide plate, the wind shield and the door panel, and a plurality of air guides are opened on the second air outlet guide plate. A second air outlet, and the second air outlet, the air guide channel and the air outlet communicate with each other.
The heat pump type washing device according to claim 3, wherein the air inlet guide plate and the first air outlet guide plate are coplanar and integrally formed.
The heat pump type washing device according to any one of claims 1-4, wherein the heat pump system further comprises:

an air exhaust assembly, arranged on the base, located outside the air inlet air duct, and communicated with the air inlet air duct and the air outlet air duct;

a compressor, arranged on the base and connected to the evaporator, and the compressor is located on the side of the exhaust assembly away from the air inlet duct; and

The condenser is arranged on the base and is connected to the compressor and the evaporator, and the condenser is located on the side of the air exhaust assembly away from the air inlet air duct.
The heat pump type washing device according to claim 5, wherein the air exhaust assembly has an air inlet and an air outlet, and the air exhaust assembly communicates with the air inlet duct through the air inlet and passes through the air outlet. The air outlet is communicated with the air outlet duct, and the plane where the air inlet is located is substantially perpendicular to the plane where the air outlet is located.
The heat pump type washing equipment according to claim 6, wherein the air outlet duct comprises:

a first sub-channel, communicated with the air outlet; and

The second sub-channel communicates with the first sub-channel and is substantially vertical, and the air outlet of the air outlet air duct is located on the second sub-channel.
The heat pump type washing device according to claim 5, wherein the number of the air exhaust components is two, the number of the air outlet air ducts is two, and the two air exhaust components are arranged at intervals from each other , and is communicated with the air inlet air duct, and the exhaust air assembly is in one-to-one correspondence with the air outlet air duct;

The two air outlet air ducts are respectively located on opposite sides of the air inlet air duct.
The heat pump type washing device according to claim 1, wherein the base comprises:

the base body; and

The water receiving tray is connected to the base body, the evaporator is arranged on the water receiving tray and is inclined relative to the base body, and the water receiving tray includes:

The bottom plate of the water receiving tray is inclined relative to the main body of the base, and the bottom plate of the water receiving tray includes a first side close to the air inlet and a second side away from the air inlet, and the first side is connected to the base the vertical distance between the bodies is greater than the vertical distance between the second side and the base body; and

The drainage groove is connected with the base body and is disposed adjacent to the second side of the bottom plate of the water receiving tray.
The heat pump type washing device according to claim 9, further comprising a water cup provided on the base body and a drain pipe connected to the water cup, and the drain pipe is further communicated with the drain groove, and A one-way valve is arranged between the drain pipe and the water cup;

The heat pump system also includes:

a condenser, arranged on the base and connected with the evaporator;

a throttling device connected to the condenser; and

A connecting pipe is located in the drainage groove and connects the condenser and the throttling device.