Heat pump device and clothing processing equipment

Abstract

The present invention provides a heat pump device and a clothing processing equipment. The heat pump device comprises a shell and a heat exchange component, and the heat exchange component is arranged in a heat exchange area of ​​the shell; an evaporator, a first auxiliary heat exchanger and a condenser are arranged in sequence; the evaporator air duct, the A auxiliary air duct and the condenser air duct are connected in sequence to form a main heat exchange air duct, a part of the air can flow through the main heat exchange air duct, and the evaporator dehumidifies the part of the air; the other part of the air can enter the B auxiliary air duct through the bypass air duct and exchange heat with the air flowing through the A auxiliary air duct, and then enter the ventilation duct; according to the humidity of the air in the ventilation duct, the exhaust damper can be controlled to open the pipe exhaust port to allow the air to directly enter the condenser air duct; or the first air outlet damper can be controlled to open the first pipe outlet port to allow the air to enter the B auxiliary air duct again; or the second air outlet damper can be controlled to open the second pipe outlet port to allow the air to enter the condenser air duct through the C auxiliary air duct; the heat pump device has low energy consumption, a large dehumidification range and obvious dehumidification effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of dehumidification equipment, and in particular relates to a heat pump device and clothing processing equipment. Background Art

[0002] Electric heating dryers generally use electric heating wires as heat sources. Although they overcome some of the shortcomings of natural drying of clothes, they have problems such as high energy consumption and humid air discharged into the room causing wet pollution. Heat pump dryers use evaporator dehumidification and condenser heating, which have the advantages of energy saving, short drying time and environmental friendliness; but as the moisture content of the drying load decreases, the cooling capacity provided by the evaporator is difficult to effectively dehumidify, resulting in poor dehumidification effect and only cooling without dehumidification. Some people have proposed that a cross-flow heat exchanger be set between the air inlet and outlet of the evaporator, and the cross-flow heat exchanger includes a hot fluid channel and a cold fluid channel, which are composed of parallel and spaced heat-conducting plates; the humid air flows through the hot fluid channel, the evaporator and the cold fluid channel to become dry air. Others have proposed that the compressor, the main condenser, the auxiliary condenser, the throttling device and the evaporator are connected in sequence by refrigerant pipes; an auxiliary condensing fan is set on the side of the auxiliary condenser close to the compressor, and the auxiliary condensing fan is controlled to start and stop according to the temperature point of the main condenser to reduce the compressor power and evaporator temperature in the later stage of drying. However, these solutions require additional cooling or heat dissipation devices, the overall structure is complex, the dehumidification effect is not obvious, and the dehumidification range is narrow. Summary of the invention

[0003] In view of this, the present invention provides a heat pump device and a clothes processing device to solve the problems of the heat pump device in the prior art, such as complex structure, unclear dehumidification effect and narrow dehumidification range.

[0004] The present invention provides a heat pump device for dehumidification; the heat pump device comprises a shell and a heat exchange component, a heat exchange area is formed inside the shell, and the heat exchange component is arranged in the heat exchange area; the heat exchange component comprises an evaporator, a first auxiliary heat exchanger, a condenser and a ventilation pipe which are arranged in sequence along the flow direction of the drying airflow; the evaporator forms an evaporator air duct, and the drying airflow flowing through the evaporator air duct has a heat exchange relationship with the refrigerant in the evaporator; the condenser forms a condenser air duct, and the drying airflow flowing through the condenser air duct has a heat exchange relationship with the refrigerant in the condenser; the first auxiliary heat exchanger forms an A auxiliary air duct and a B auxiliary air duct, and the A auxiliary air duct and the B auxiliary air duct have a heat exchange relationship; the evaporator air duct, the A auxiliary air duct and the condenser air duct are connected in sequence to form a main heat exchange air duct;

[0005] The heat exchange component and the shell are located between the shell wall of the heat exchange zone to form a bypass air duct, and the bypass air duct is connected to the air inlet end of the B auxiliary air duct; the ventilation pipe is formed with a pipe air inlet, a pipe air outlet and a pipe air outlet, and the pipe air inlet is connected to the air outlet end of the B auxiliary air duct, and the pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the condenser air duct according to the humidity of the air in the ventilation pipe, and the pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the B auxiliary air duct according to the humidity of the air in the ventilation pipe;

[0006] Further optionally, the pipe air outlet includes a first pipe air outlet, the first pipe air outlet is connected to the air inlet end of the B auxiliary air duct; a first air outlet baffle is provided at the first pipe air outlet, and the first air outlet baffle can be controlled to open or close the first pipe air outlet; and / or,

[0007] The pipe air outlet includes a second pipe air outlet, a second air outlet baffle is provided at the second pipe air outlet, and the second air outlet baffle can be controlled to open or close the second pipe air outlet; the heat exchange assembly also includes a second auxiliary heat exchanger, the second auxiliary heat exchanger forms a C auxiliary air duct and a flow channel with a heat exchange relationship, the air inlet end of the C auxiliary air duct is connected to the second pipe air outlet, and the air outlet end of the C auxiliary air duct is connected to the air inlet end of the condenser air duct; the flow channel is used to flow condensed water or ambient air;

[0008] The ambient air is the air in the environment where the heat pump device is located.

[0009] Further optionally, the air inlet end of the B auxiliary air duct is located at the top of the first auxiliary heat exchanger, and the air outlet end of the B auxiliary air duct is located at the bottom of the first auxiliary heat exchanger; the ventilation pipe is arranged at the bottom of the first auxiliary heat exchanger and is located between the evaporator and the condenser; a plurality of the pipe air inlets are formed on the side wall of the ventilation pipe close to the air outlet end of the B auxiliary air duct, and the plurality of the pipe air inlets are arranged at intervals along the extension direction of the ventilation pipe;

[0010] A plurality of the tube air outlets are formed on the side wall of the ventilation duct close to the air inlet end of the condenser air duct, and the plurality of the tube air outlets are arranged at intervals along the extension direction of the ventilation duct; the first tube air outlet is formed at at least one end of the ventilation duct; or, the tube air outlet is formed at one end of the ventilation duct, and the first tube air outlet is formed at the other end of the ventilation duct.

[0011] Further optionally, the heat exchange assembly includes a return air duct, the return air duct is arranged on one side of the first auxiliary heat exchanger, and the return air duct is connected to the first pipe air outlet and an end of the bypass air duct close to the B auxiliary air duct;

[0012] The air in the ventilation duct can enter the condenser air duct through the duct exhaust port, or enter the B auxiliary air duct again through the return air duct.

[0013] Further optionally, the air inlet end of the B auxiliary air duct is located at the top of the first auxiliary heat exchanger, and the air outlet end of the B auxiliary air duct is located at the bottom of the first auxiliary heat exchanger; the second auxiliary heat exchanger is arranged at the bottom of the first auxiliary heat exchanger and is located between the evaporator and the condenser; the air inlet end of the C auxiliary air duct is located at the top of the second auxiliary heat exchanger, and the air outlet end of the C auxiliary air duct is located at the bottom of the second auxiliary heat exchanger;

[0014] The second pipe air outlet is formed on the side wall of the ventilation pipe close to the air inlet end of the C auxiliary air duct.

[0015] Further optionally, the heat exchange component also includes a water receiving pan and a first condensation water pipe, the water receiving pan is arranged at the bottom of the evaporator, and the water receiving pan is used to collect condensation water generated by the evaporator; the flow channel is a condensation water channel, and the water receiving pan, the first condensation water pipe and the condensation water channel are connected to form a condensation water circuit.

[0016] Further optionally, the second auxiliary heat exchanger is also formed with a D auxiliary air duct, and the condensation water channel, C auxiliary air duct and D auxiliary air duct are arranged alternately in pairs and have a heat exchange relationship; the D auxiliary air duct connects the air outlet end of the evaporator and the air inlet end of the condenser.

[0017] Further optionally, the second auxiliary heat exchanger includes a condensate shell and a plurality of second heat exchange tubes, the condensate shell is surrounded by the condensate water channel, the plurality of second heat exchange tubes are arranged at intervals and pass through the condensate shell, and the second heat exchange tubes form the C auxiliary air duct; or,

[0018] The second auxiliary heat exchanger includes a plurality of second condensing water pipes and a plurality of second heat exchange pipes arranged at intervals, and the second condensing water pipes and the second heat exchange pipes are arranged alternately; the second condensing water pipes form the condensing water channel, and the second heat exchange pipes form the C auxiliary air duct; the A auxiliary air duct is formed between adjacent second condensing water pipes and second heat exchange pipes.

[0019] Further optionally, the first auxiliary heat exchanger includes a bracket and a plurality of first heat exchange tubes, the plurality of first heat exchange tubes are spaced and arranged in parallel on the bracket along the length direction of the bracket, the extension direction of the first heat exchange tube is inclined relative to the height direction of the bracket, or the first heat exchange tube extends along the height direction of the bracket; the first heat exchange tube forms the B auxiliary air duct, and the A auxiliary air duct is formed between two adjacent first heat exchange tubes; or,

[0020] The first auxiliary heat exchanger comprises a bracket and a plurality of heat exchange tube groups, wherein the plurality of heat exchange tube groups are arranged at intervals along the length direction of the bracket; each of the heat exchange tube groups comprises a plurality of the first heat exchange tubes, wherein the plurality of the first heat exchange tubes are arranged staggered along the width direction of the bracket; the first heat exchange tubes are formed with the B auxiliary air duct, and the A auxiliary air duct is formed between two adjacent first heat exchange tubes; or,

[0021] The first auxiliary heat exchanger includes an auxiliary heat exchange shell, a plurality of the B auxiliary air ducts are formed inside the auxiliary heat exchange shell, and the plurality of the B auxiliary air ducts are arranged at intervals along the length direction of the auxiliary heat exchange shell; the auxiliary heat exchange shell forms the A auxiliary air duct between two adjacent B auxiliary air ducts.

[0022] Further optionally, an air inlet area and an air outlet area are further formed inside the shell, the air inlet area, the heat exchange area and the air outlet area are sequentially connected, the heat exchange assembly further includes a heat exchange frame, and the heat exchange frame is arranged in the heat exchange area; the evaporator, the first auxiliary heat exchanger and the condenser are sequentially arranged inside the heat exchange frame, the air inlet end of the evaporator air duct is connected to the air inlet area, and the air outlet end of the condenser air duct is connected to the air outlet area;

[0023] A first bypass air duct section is formed between the top wall of the evaporator and the top wall of the heat exchange zone, and the air inlet end of the first bypass air duct section is connected to the air inlet zone; a second bypass air duct section is formed between the top wall of the first auxiliary heat exchanger and the top wall of the shell, and the air outlet end of the second bypass air duct section is connected to the air inlet end of the B auxiliary air duct; the air outlet end of the first bypass air duct section and the air inlet end of the second bypass air duct section are connected to form the bypass air duct.

[0024] The present invention also provides a clothing processing device, which includes a clothing processing drum and a heat pump device as described above, wherein the clothing processing drum is formed with a drying air inlet and a drying air outlet, and the heat pump device also includes a fan and a filter; the drying air inlet, the shell, the fan and the drying air outlet are connected in sequence, and the filter is arranged inside the shell and close to the drying air inlet.

[0025] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0026] The evaporator duct, A auxiliary duct and condenser duct are connected in sequence to form a main heat exchange duct, and a part of the air can flow through the main heat exchange duct and be dehumidified by the evaporator; a bypass duct is formed between the heat exchange component and the shell wall of the heat exchange area, and the bypass duct is connected to the pipe air inlet through the B auxiliary duct, and another part of the air can enter the B auxiliary duct through the bypass duct and exchange heat with the air flowing through the A auxiliary duct, and then enter the ventilation duct; the pipe exhaust port is connected to the air inlet end of the condenser duct, the first pipe outlet is connected to the air inlet end of the B auxiliary duct, and the second pipe outlet is connected to the condenser duct through the C auxiliary duct end. According to the humidity of the air in the ventilation duct, the pipe exhaust port can be opened or closed, and the pipe outlet can be opened or closed, so that the air in the ventilation duct can directly enter the condenser duct or enter the B auxiliary duct again; the heat pump device has a simple structure, low energy consumption, a large dehumidification range and obvious dehumidification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0029] Figure 1 This is an axial schematic diagram of a heat pump device embodiment 1 provided by the present invention;

[0030] Figure 2a and Figure 2b A schematic cross-sectional view of a heat pump device embodiment 1 provided by the present invention;

[0031] Figure 3 This is an axial schematic diagram of Embodiment 1 of the heat exchange assembly provided by the present invention;

[0032] Figure 4 A schematic cross-sectional view of a heat exchange assembly embodiment 1 provided by the present invention;

[0033] Figure 5a , Figure 5b , Figure 5c , Figure 5d and Figure 5eThey are schematic structural diagrams of different embodiments of the first auxiliary heat exchanger provided by the present invention;

[0034] Figure 5f A schematic diagram of a half-section structure of an auxiliary heat exchange shell embodiment provided by the present invention;

[0035] Figure 6 A schematic diagram of the assembly structure of the first auxiliary heat exchanger, ventilation pipe and return air pipe according to Embodiment 2 of the present invention;

[0036] Figure 7a A schematic diagram of the structure of Embodiment 2 of the present invention in which the air in the ventilation duct directly enters the condenser air duct;

[0037] Figure 7b A schematic diagram of the structure of Example 2 of the present invention in which the air in the ventilation duct reenters the auxiliary air duct B;

[0038] Figure 8 A schematic diagram of the assembly structure of the first auxiliary heat exchanger, the second auxiliary heat exchanger, the water receiving tray and the evaporator embodiment 2 provided by the present invention;

[0039] Fig. 9 A schematic diagram of the assembly structure of a second auxiliary heat exchanger embodiment 2 provided by the present invention;

[0040] In the figure:

[0041] 1- Evaporator;

[0042] 21-first auxiliary heat exchanger; 211-bracket; 212-first heat exchange tube; 213-B auxiliary air duct; 214-auxiliary heat exchange shell; 215-A auxiliary air duct; 216-fin; 22-second auxiliary heat exchanger; 221-condensate shell; 222-second heat exchange tube;

[0043] 3-condenser; 4-compressor; 5-throttling device; 6-filter;

[0044] 7-shell; 71-shell body; 72-shell cover; 73-bypass air duct; 731-first bypass air duct section; 732-second bypass air duct section; 741-air inlet area; 742-heat exchange area; 743-air outlet area;

[0045] 81 - water tray; 82 - ventilation duct; 821 - exhaust duct; 83 - return air duct; 831 - first return air section; 832 - second return air section. DETAILED DESCRIPTION

[0046] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0048] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0050] In the existing heat pump dryers, some people have proposed to set a cross-flow heat exchanger between the air inlet and the air outlet of the evaporator. The cross-flow heat exchanger includes a hot fluid channel and a cold fluid channel. The hot fluid channel and the cold fluid channel are composed of heat-conducting plates arranged in parallel and at intervals. The humid air flows through the hot fluid channel, the evaporator and the cold fluid channel to become dry air. Others have proposed that the compressor, the main condenser, the auxiliary condenser, the throttling device and the evaporator are connected in sequence by refrigerant pipes. An auxiliary condensing fan is provided on the side of the auxiliary condenser close to the compressor. The auxiliary condensing fan is controlled to start and stop according to the temperature point of the main condenser to reduce the compressor power and evaporator temperature in the later stage of drying. However, these solutions require additional cooling or heat dissipation devices, and the overall structure of the machine is complex, the dehumidification effect is not obvious, and the dehumidification range is narrow.

[0051] The present invention creatively provides a heat pump device, including a shell and a heat exchange component, a heat exchange area is formed inside the shell, and the heat exchange component is arranged in the heat exchange area; an evaporator, a first auxiliary heat exchanger and a condenser are arranged in sequence; the evaporator air duct, the A auxiliary air duct and the condenser air duct are connected in sequence to form a main heat exchange air duct, a part of the air can flow through the main heat exchange air duct, and the part of the air is dehumidified by the evaporator; the other part of the air can enter the B auxiliary air duct through the bypass air duct and exchange heat with the air flowing through the A auxiliary air duct, and then enter the ventilation duct; according to the humidity of the air in the ventilation duct, the pipe exhaust port can be opened to allow the air in the ventilation duct to directly enter the condenser air duct; or the pipe outlet can be opened to allow the air in the ventilation duct to enter the B auxiliary air duct again; the dehumidification range is large and the dehumidification effect is obvious.

[0052] It should be noted that the “A”, “B” and “C” limitations regarding auxiliary air ducts in the present application do not have specific meanings, but are only for the convenience of distinguishing and expressing different auxiliary air ducts.

[0053] Example 1

[0054] like Figures 1 to 6 As shown, this embodiment provides a heat pump device for dehumidification; the heat pump device includes a shell 7 and a heat exchange component, the shell 7 has a heat exchange area 742 formed inside, and the heat exchange component is arranged in the heat exchange area 742; the heat exchange component includes a ventilation pipe 82, a compressor 4, a throttling device 5, and an evaporator 1, a first auxiliary heat exchanger 21 and a condenser 3 arranged in sequence along the flow direction of the drying airflow; the evaporator 1 forms an evaporator refrigerant channel and an evaporator air duct with a heat exchange relationship, the evaporator refrigerant channel can flow through the refrigerant, and the evaporator air duct can flow through the air; the condenser The condenser 3 forms a condenser refrigerant channel and a condenser air duct with a heat exchange relationship, the condenser refrigerant channel can flow through the refrigerant, and the condenser air duct can flow through the air; the evaporator refrigerant channel, the condenser refrigerant channel, the compressor 4 and the throttling device 5 are connected through the refrigerant pipe to form a refrigerant circuit; the first auxiliary heat exchanger 21 forms an A auxiliary air duct 215 and a B auxiliary air duct 213, and the A auxiliary air duct 215 and the B auxiliary air duct 213 have a heat exchange relationship; the evaporator air duct, the A auxiliary air duct 215 and the condenser air duct are connected in sequence to form a main heat exchange air duct;

[0055] A bypass air duct 73 is formed between the heat exchange component and the shell wall of the heat exchange area 742, and the bypass air duct 73 is connected to the air inlet end of the B auxiliary air duct 213; the ventilation pipe 82 is formed with a pipe air inlet, a pipe exhaust port 821 and a pipe air outlet, and the pipe air inlet is connected to the air outlet end of the B auxiliary air duct 213, and the pipe exhaust port 821 can be controlled to be connected or disconnected with the air inlet end of the condenser air duct according to the humidity of the air in the ventilation pipe 82; an exhaust baffle is provided at the pipe exhaust port 821, and the exhaust baffle can be controlled to open or close the pipe exhaust port 821. When the pipe exhaust port 821 is in the open state, the pipe exhaust port 821 and the air inlet of the condenser air duct The ends are connected; when the pipe exhaust port 821 is in a closed state, the pipe exhaust port 821 and the air inlet end of the condenser air duct are disconnected; a part of the air can flow through the evaporator air duct, the A auxiliary air duct 215 and the condenser air duct, and the other part of the air can flow through the bypass air duct 73, the B auxiliary air duct 213 and the ventilation pipe 82; the air in the A auxiliary air duct 215 and the air in the B auxiliary air duct 213 exchange heat to dehumidify the air in the B auxiliary air duct 213; the sensible heat of the heat pump device is converted into latent heat, thereby increasing the dehumidification capacity of the heat pump device; the evaporator 1 can reduce more air to below the dew point temperature, thereby increasing the dehumidification efficiency of the evaporator 1;

[0056] The pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the B auxiliary air duct 213 according to the humidity of the air in the ventilation pipe 82; specifically, the pipe air outlet includes a first pipe air outlet, and the first pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the B auxiliary air duct 213; a first air outlet baffle is provided at the first pipe air outlet, and the first air outlet baffle can be controlled to open or close the first pipe air outlet; when the first pipe air outlet is in an open state, the first pipe air outlet is connected with the air inlet end of the B auxiliary air duct 213; when the first pipe air outlet is in a closed state, the first pipe air outlet is disconnected from the air inlet end of the B auxiliary air duct 213;

[0057] According to the humidity of the air in the ventilation pipe 82, the exhaust damper can be controlled to open the pipe exhaust port 821, so that the air in the ventilation pipe 82 directly enters the condenser air duct; or the first air outlet damper can be controlled to open the first pipe air outlet, so that the air in the ventilation pipe 82 enters the B auxiliary air duct 213 again; the heat pump device has a simple structure, low energy consumption, a large dehumidification range and obvious dehumidification effect.

[0058] In view of the problem that the air in the B auxiliary air duct 213 cannot smoothly enter the ventilation duct 82 and the air in the ventilation duct 82 cannot smoothly be discharged due to the unreasonable structural design of the ventilation duct 82, the present embodiment proposes that the air inlet end of the B auxiliary air duct 213 is located at the top of the first auxiliary heat exchanger 21, and the air outlet end of the B auxiliary air duct 213 is located at the bottom of the first auxiliary heat exchanger 21; the ventilation duct 82 is arranged at the bottom of the first auxiliary heat exchanger 21 and between the evaporator 1 and the condenser 3; a plurality of pipe air inlets are formed on the side wall of the ventilation duct 82 near the air outlet end of the B auxiliary air duct 213, and the plurality of pipe air inlets are arranged at intervals along the extension direction of the ventilation duct 82;

[0059] A pipe exhaust port 821 is formed at one end of the ventilation pipe 82, and a first pipe outlet port is formed at the other end of the ventilation pipe 82;

[0060] In other embodiments, a plurality of pipe exhaust ports 821 are formed on the side wall of the ventilation pipe 82 near the air inlet end of the condenser air duct, and the plurality of pipe exhaust ports 821 are arranged at intervals along the extension direction of the ventilation pipe 82; a first pipe outlet is formed at at least one end of the ventilation pipe 82.

[0061] Further, if Figure 6 As shown, the heat exchange assembly includes a return air duct 83, which is arranged on one side of the first auxiliary heat exchanger 21, and the return air duct 83 is connected to the first pipe air outlet and the bypass air duct 73 at one end close to the B auxiliary air duct 213;

[0062] The air in the ventilation pipe 82 can enter the condenser air duct through the exhaust port 821, or enter the B auxiliary air duct 213 again through the return air pipe 83;

[0063] Specifically, the return air duct 83 includes a first return air section 831 and a second return air section 832, one end of the first return air section 831 and the first pipe air outlet, and the other end of the first return air section 831 is connected to one end of the second return air section 832; the second return air section 832 is formed with a plurality of return air ports, and the plurality of return air ports are arranged in sequence and at intervals along the length direction of the second return air section 832, and each return air port is connected to the corresponding B auxiliary air duct 213; the air in the second return air section 832 can enter the corresponding B auxiliary air duct 213 through the plurality of return air ports respectively, and the return air is distributed to the plurality of B auxiliary air ducts 213, thereby increasing the heat exchange area between the air in the B auxiliary air duct 213 and the air in the A auxiliary air duct 215.

[0064] In other embodiments, the return air duct 83 is also formed with a fresh air inlet, and a fresh air duct is arranged at the fresh air inlet, which can input ambient air into the return air duct 83, and then the ambient air can be mixed with the air flowing through the B auxiliary air duct 213; when the temperature of the ambient air is lower than the temperature of the air in the B auxiliary air duct 213, the ambient air has a dehumidification effect on the air in the B auxiliary air duct 213.

[0065] like Figure 5a to Figure 5e As shown, in order to solve the problem of low heat exchange efficiency of the first auxiliary heat exchanger 21, the present embodiment proposes that the first auxiliary heat exchanger 21 includes a bracket 211 and a plurality of first heat exchange tubes 212, the plurality of first heat exchange tubes 212 are arranged on the bracket 211 in parallel and spaced along the length direction of the bracket 211, the first heat exchange tubes 212 extend along the height direction of the bracket 211, or the extension direction of the first heat exchange tubes 212 is inclined relative to the height direction of the bracket 211; the first heat exchange tubes 212 are formed with B auxiliary air ducts 213, and the gap between two adjacent first heat exchange tubes 212 An A auxiliary air duct 215 is formed in between; a part of the air in the air inlet area 741 enters the A auxiliary air duct 215 through the evaporator air duct, and another part of the air in the air inlet area 741 enters the B auxiliary air duct 213 through the bypass air duct 73. The air in the A auxiliary air duct 215 and the air in the B auxiliary air duct 213 exchange heat, which has a dehumidification effect on the air in the B auxiliary air duct 213; the water vapor in the B auxiliary air duct 213 condenses into water droplets and flows downward along the first heat exchange tube 212; specifically, the multiple first heat exchange tubes 212 and the multiple return air outlets are connected one by one.

[0066] In some other embodiments, the first auxiliary heat exchanger 21 includes a bracket 211 and a plurality of heat exchange tube groups, and the plurality of heat exchange tube groups are arranged at intervals along the length direction of the bracket 211; each heat exchange tube group includes a plurality of first heat exchange tubes 212, and the plurality of first heat exchange tubes 212 are staggered along the width direction of the bracket 211; the first heat exchange tubes 212 are formed with B auxiliary air ducts 213, and A auxiliary air ducts 215 are formed between two adjacent first heat exchange tubes 212;

[0067] In some other embodiments, Figure 5f As shown, the first auxiliary heat exchanger 21 includes an auxiliary heat exchange shell 214, and a plurality of B auxiliary air ducts 213 are formed inside the auxiliary heat exchange shell 214. The plurality of B auxiliary air ducts 213 are arranged at intervals along the length direction of the auxiliary heat exchange shell 214; the auxiliary heat exchange shell 214 forms an A auxiliary air duct 215 between two adjacent B auxiliary air ducts 213.

[0068] In view of the problem that the bypass air duct 73 is not properly positioned so that the air cannot smoothly enter the B auxiliary air duct 213 through the bypass air duct 73, the present embodiment proposes that an air inlet area 741 and an air outlet area 743 are further formed inside the shell 7, the air inlet area 741, the heat exchange area 742 and the air outlet area 743 are sequentially connected, the heat exchange assembly further includes a heat exchange frame, and the heat exchange frame is arranged in the heat exchange area 742; the evaporator 1, the first auxiliary heat exchanger 21 and the condenser 3 are sequentially arranged inside the heat exchange frame, the air inlet end of the evaporator air duct is connected to the air inlet area 741, and the air outlet end of the condenser air duct is connected to the air outlet area 743; a part of the air in the air inlet area 741 can flow through the evaporator air duct, the A auxiliary air duct 215 and the condenser air duct in sequence to enter the air outlet area 743;

[0069] A first bypass air duct section 731 is formed between the top wall of the evaporator 1 and the top wall of the shell 7, and the air inlet end of the first bypass air duct section 731 is connected to the air inlet area 741; a second bypass air duct section 732 is formed between the top wall of the first auxiliary heat exchanger 21 and the top wall of the shell 7, and the air outlet end of the second bypass air duct section 732 is connected to the air inlet end of the B auxiliary air duct 213; the air outlet end of the first bypass air duct section 731 and the air inlet end of the second bypass air duct section 732 are connected to form the bypass air duct 73; another part of the air in the air inlet area 741 can flow through the first bypass air duct section 731, the second bypass air duct section 732 and the B auxiliary air duct 213 in sequence to enter the ventilation pipe 82, and then enter the air outlet area 743 through the condenser air duct or enter the B auxiliary air duct 213 again through the return air duct 83;

[0070] Specifically, the top wall of the evaporator 1 is higher than the top wall of the first auxiliary heat exchanger 21, and the top wall of the condenser 3 is larger than the top wall of the first auxiliary heat exchanger 21; the distance between the top wall of the evaporator 1 and the top wall of the heat exchange zone 742 is greater than the distance between the top wall of the first auxiliary heat exchanger 21 and the top wall of the heat exchange zone 742.

[0071] Specifically, the shell 7 includes a shell body 71 and a shell cover 72. The top of the shell body 71 is formed with an opening, and the shell cover 72 is set at the opening; a first bypass air duct section 731 is formed between the top wall of the evaporator 1 and the shell cover 72, and a second bypass air duct section 732 is formed between the top wall of the first auxiliary heat exchanger 21 and the shell cover 72; the top wall of the condenser 3 and the shell cover 72 are sealed and fitted; the evaporator 1 is generally composed of a copper tube and an aluminum fin 216, and the copper tube is tightly connected to the fin 216 after expansion. The copper tube is connected to the evaporator 1, and the copper tubes of the two adjacent evaporators 1 form an evaporator air duct; the first auxiliary heat exchanger 21 is composed of a copper tube and aluminum fins, and the copper tube is a B auxiliary air duct 213, and the copper tube is formed between the two adjacent copper tubes of the first auxiliary heat exchanger 21. The auxiliary air duct 215 is formed; the condenser 3 is generally composed of a copper tube and aluminum fins. The copper tube is tightly connected to the fins after expansion. The copper tube is a refrigerant channel, and the condenser air duct is formed between the copper tubes of the two adjacent condensers 3;

[0072] The present embodiment also provides a clothing processing device, which includes a clothing processing drum and any of the above-mentioned heat pump devices, the clothing processing drum is formed with a drying air inlet and a drying air outlet, the heat pump device also includes a fan and a filter 6; the drying air inlet, the shell 7, the fan and the drying air outlet are connected in sequence, the fan is used to provide power to the drying airflow, under the action of the fan, the drying airflow circulates between the clothing processing drum and the inside of the shell 7, the drying airflow enters the clothing processing drum and exchanges heat with the clothes, the evaporator 1 dehumidifies the drying airflow when the drying airflow enters the evaporator 1, and the condenser 3 heats the drying airflow when the drying airflow enters the condenser 3; the drying airflow flowing through the B auxiliary air duct 213 and the drying airflow flowing through the A auxiliary air duct 215 are heat-exchanged, thereby improving the dehumidification efficiency of the evaporator 1 and shortening the drying time; the filter 6 is arranged inside the shell 7 and close to the drying air inlet, and is used to filter hair debris in the drying airflow.

[0073] The number of rows of the first auxiliary heat exchanger 21 of this embodiment can be single row, multiple rows, etc., and the number of rows of the evaporator 1 and the condenser 3 can also be single row, multiple rows, etc.; the fin structure of the first auxiliary heat exchanger 21 can be flat fins, corrugated fins, window fins, etc., but is not limited to a certain type, and its tube diameter and the number of fins are not limited to a certain type.

[0074] The heat pump device of this embodiment is applicable to heat pump dryers, dehumidifiers and other drying equipment. The structural arrangement of the heat pump device is not limited to one type and can be located at any position of the drying equipment.

[0075] Example 2

[0076] like Figures 7a to 9 As shown, different from Example 1, the pipe air outlet includes a second pipe air outlet, a second air outlet baffle is provided at the second pipe air outlet, and the second air outlet baffle can be controlled to open or close the second pipe air outlet; the heat exchange component also includes a second auxiliary heat exchanger 22, the second auxiliary heat exchanger 22 forms a C auxiliary air duct and a flow channel with a heat exchange relationship, the second pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the C auxiliary air duct, when the second pipe air outlet is in an open state, the second pipe air outlet is connected with the air inlet end of the C auxiliary air duct; when the second pipe air outlet is in a closed state, the second pipe air outlet is disconnected from the air inlet end of the C auxiliary air duct; the air outlet end of the C auxiliary air duct is connected with the air inlet end of the condenser air duct; the flow channel is used to flow through condensed water or ambient air; wherein the ambient air is the air in the environment where the heat pump device is located;

[0077] The second air outlet baffle can be controlled to open the second pipe air outlet, so that the air in the ventilation pipe 82 enters the condenser air duct through the C auxiliary air duct.

[0078] Further, the air inlet end of the B auxiliary air duct 213 is located at the top of the first auxiliary heat exchanger 21, and the air outlet end of the B auxiliary air duct 213 is located at the bottom of the first auxiliary heat exchanger 21; the second auxiliary heat exchanger 22 is arranged at the bottom of the first auxiliary heat exchanger 21 and is located between the evaporator 1 and the condenser 3; the air inlet end of the C auxiliary air duct is located at the top of the second auxiliary heat exchanger 22, and the air outlet end of the C auxiliary air duct is located at the bottom of the second auxiliary heat exchanger 22;

[0079] A second duct air outlet is formed on the side wall of the ventilation duct 82 close to the air inlet end of the C auxiliary air duct.

[0080] In response to the problem of low utilization rate of condensed water generated by the evaporator 1, this embodiment proposes that the heat exchange component also includes a water receiving pan 81 and a first condensed water pipe. The water receiving pan 81 is arranged at the bottom of the evaporator 1, and the water receiving pan 81 is used to collect the condensed water generated by the evaporator 1; the flow channel is a condensed water channel, and the water receiving pan 81, the first condensed water pipe and the condensed water channel are connected to form a condensed water circuit; the condensed water in the water receiving pan 81 enters the condensed water channel through the first condensed water pipe and exchanges heat with the air flowing through the C auxiliary air duct, thereby dehumidifying the air in the C auxiliary air duct; specifically, the first condensed water pipe extends along the width direction of the first auxiliary heat exchanger 21.

[0081] Furthermore, the second auxiliary heat exchanger 22 is also formed with a D auxiliary air duct, and the condensation water duct, the C auxiliary air duct and the D auxiliary air duct are arranged alternately in pairs and have a heat exchange relationship; the D auxiliary air duct connects the air outlet end of the evaporator 1 and the air inlet end of the condenser 3; the condensation water in the water receiving tray 81 enters the condensation water duct through the first condensation water pipe, and a part of the air in the air inlet area 741 enters the C auxiliary air duct through the bypass air duct 73, the B auxiliary air duct 213 and the ventilation pipe 82, and another part of the air in the air inlet area 741 enters the D auxiliary air duct through the evaporator air duct, and the water in the condensation water duct, the air in the C auxiliary air duct and the air in the D auxiliary air duct exchange heat with each other, so that the air in the C auxiliary air duct and the air in the D auxiliary air duct are dehumidified; specifically, the condensation water duct extends along the width direction of the first auxiliary heat exchanger 21, the C auxiliary air duct extends along the height direction of the first auxiliary heat exchanger 21, and the D auxiliary air duct extends along the length direction of the first auxiliary heat exchanger 21.

[0082] In other embodiments, the second auxiliary heat exchanger 22 includes a condensation water shell 221 and a plurality of second heat exchange tubes 222, the condensation water shell 221 is surrounded by a condensation water channel 223, the plurality of second heat exchange tubes 222 are arranged at intervals and pass through the condensation water shell 221, and the second heat exchange tubes 222 form a C auxiliary air channel; specifically, the condensation water channel 223 extends along the width direction of the first auxiliary heat exchanger 21, and the C auxiliary air channel extends along the height direction of the first auxiliary heat exchanger 21;

[0083] In some other embodiments, the second auxiliary heat exchanger 22 includes a plurality of second condensation water pipes and a plurality of second heat exchange pipes 222 arranged at intervals, and the second condensation water pipes and the second heat exchange pipes 222 are arranged alternately; the second condensation water pipes are formed with condensation water channels 223, and the second heat exchange pipes 222 are formed with C auxiliary air channels; an A auxiliary air channel 215 is formed between adjacent second condensation water pipes and second heat exchange pipes 222; specifically, the second condensation water pipes and the second heat exchange pipes 222 both extend along the height direction of the first auxiliary heat exchanger 21.

[0084] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A heat pump device for dehumidification; It is characterized in that The heat pump device comprises a shell and a heat exchange component, a heat exchange area is formed inside the shell, and the heat exchange component is arranged in the heat exchange area; the heat exchange component comprises an evaporator, a first auxiliary heat exchanger, a condenser and a ventilation pipe arranged in sequence; the evaporator forms an evaporator air duct through which a drying airflow can flow, and the condenser forms a condenser air duct through which a drying airflow can flow; the first auxiliary heat exchanger forms an A auxiliary air duct and a B auxiliary air duct having a heat exchange relationship; The evaporator air duct, the A auxiliary air duct and the condenser air duct are connected in sequence to form a main heat exchange air duct; The heat exchange assembly and the shell are located between the shell wall of the heat exchange zone to form a bypass air duct connected to the air inlet end of the B auxiliary air duct; the ventilation pipe is formed with a pipe air inlet, a pipe air outlet, a first pipe air outlet and a second pipe air outlet, and the pipe air inlet is connected to the air outlet end of the B auxiliary air duct; the pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the condenser air duct according to the humidity of the air in the ventilation pipe, and the first pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the B auxiliary air duct according to the humidity of the air in the ventilation pipe; The heat exchange assembly further includes a second auxiliary heat exchanger, the second auxiliary heat exchanger forms a C auxiliary air duct and a flow channel having a heat exchange relationship; the air outlet end of the C auxiliary air duct is connected to the air inlet end of the condenser air duct, and the flow channel is used to flow condensed water or ambient air; the second pipe air outlet can be controlled to be connected or disconnected with the air inlet end of the C auxiliary air duct; The ambient air is the air in the environment where the heat pump device is located.

2. The heat pump device according to claim 1, It is characterized in that A first air outlet baffle is provided at the air outlet of the first pipe, and the first air outlet baffle can be controlled to open or close the air outlet of the first pipe; A second air outlet baffle is provided at the second pipe air outlet, and the second air outlet baffle can be controlled to open or close the second pipe air outlet.

3. The heat pump device according to claim 2, It is characterized in that The air inlet end of the B auxiliary air duct is located at the top of the first auxiliary heat exchanger, and the air outlet end of the B auxiliary air duct is located at the bottom of the first auxiliary heat exchanger; the ventilation pipe is arranged at the bottom of the first auxiliary heat exchanger and is located between the evaporator and the condenser; a plurality of pipe air inlets are formed on the side wall of the ventilation pipe close to the air outlet end of the B auxiliary air duct, and the plurality of pipe air inlets are arranged at intervals along the extension direction of the ventilation pipe; A plurality of the tube air outlets are formed on the side wall of the ventilation duct close to the air inlet end of the condenser air duct, and the plurality of the tube air outlets are arranged at intervals along the extension direction of the ventilation duct; the first tube air outlet is formed at at least one end of the ventilation duct; or, the tube air outlet is formed at one end of the ventilation duct, and the first tube air outlet is formed at the other end of the ventilation duct.

4. The heat pump device according to claim 2, It is characterized in that The heat exchange assembly includes a return air duct, which is arranged on one side of the first auxiliary heat exchanger and communicates with the first pipe air outlet and one end of the bypass air duct close to the B auxiliary air duct; The air in the ventilation duct can enter the condenser air duct through the duct exhaust port, or enter the B auxiliary air duct again through the return air duct.

5. The heat pump device according to claim 2, It is characterized in that The air inlet end of the B auxiliary air duct is located at the top of the first auxiliary heat exchanger, and the air outlet end of the B auxiliary air duct is located at the bottom of the first auxiliary heat exchanger; the second auxiliary heat exchanger is arranged at the bottom of the first auxiliary heat exchanger and is located between the evaporator and the condenser; the air inlet end of the C auxiliary air duct is located at the top of the second auxiliary heat exchanger, and the air outlet end of the C auxiliary air duct is located at the bottom of the second auxiliary heat exchanger; The second pipe air outlet is formed on the side wall of the ventilation pipe close to the air inlet end of the C auxiliary air duct.

6. The heat pump device according to claim 5, It is characterized in that The heat exchange component also includes a water receiving pan and a first condensation water pipe. The water receiving pan is arranged at the bottom of the evaporator, and the water receiving pan is used to collect condensation water generated by the evaporator. The flow channel is a condensation water channel. The water receiving pan, the first condensation water pipe and the condensation water channel are connected to form a condensation water circuit.

7. The heat pump device according to claim 6, It is characterized in that The second auxiliary heat exchanger is also formed with a D auxiliary air duct, and the condensation water channel, C auxiliary air duct and D auxiliary air duct are arranged alternately in pairs and have a heat exchange relationship; the D auxiliary air duct connects the air outlet end of the evaporator and the air inlet end of the condenser.

8. The heat pump device according to claim 6, It is characterized in that The second auxiliary heat exchanger comprises a condensing water shell and a plurality of second heat exchange tubes, the condensing water shell is surrounded by the condensing water channel, the plurality of second heat exchange tubes are arranged at intervals and pass through the condensing water shell, and the second heat exchange tubes form the C auxiliary air duct; or, The second auxiliary heat exchanger includes a plurality of second condensing water pipes and a plurality of second heat exchange pipes arranged at intervals, and the second condensing water pipes and the second heat exchange pipes are arranged alternately; the second condensing water pipes form the condensing water channel, and the second heat exchange pipes form the C auxiliary air duct; the A auxiliary air duct is formed between adjacent second condensing water pipes and second heat exchange pipes.

9. The heat pump device according to claim 1, It is characterized in that The first auxiliary heat exchanger comprises a bracket and a plurality of first heat exchange tubes, the plurality of first heat exchange tubes are arranged on the bracket at intervals and in parallel along the length direction of the bracket, the extension direction of the first heat exchange tube is arranged obliquely relative to the height direction of the bracket, or the first heat exchange tube extends along the height direction of the bracket; the first heat exchange tube forms the B auxiliary air duct, and the A auxiliary air duct is formed between two adjacent first heat exchange tubes; or, The first auxiliary heat exchanger comprises a bracket and a plurality of heat exchange tube groups, wherein the plurality of heat exchange tube groups are arranged at intervals along the length direction of the bracket; each of the heat exchange tube groups comprises a plurality of the first heat exchange tubes, wherein the plurality of the first heat exchange tubes are arranged staggered along the width direction of the bracket; the first heat exchange tubes are formed with the B auxiliary air duct, and the A auxiliary air duct is formed between two adjacent first heat exchange tubes; or, The first auxiliary heat exchanger includes an auxiliary heat exchange shell, a plurality of the B auxiliary air ducts are formed inside the auxiliary heat exchange shell, and the plurality of the B auxiliary air ducts are arranged at intervals along the length direction of the auxiliary heat exchange shell; the auxiliary heat exchange shell forms the A auxiliary air duct between two adjacent B auxiliary air ducts.

10. The heat pump device according to claim 9, It is characterized in that The shell is further provided with an air inlet area and an air outlet area, the air inlet area, the heat exchange area and the air outlet area are connected in sequence, the heat exchange assembly further comprises a heat exchange frame, the heat exchange frame is arranged in the heat exchange area; the evaporator, the first auxiliary heat exchanger and the condenser are arranged in sequence in the heat exchange frame, the air inlet end of the evaporator air duct is connected with the air inlet area, and the air outlet end of the condenser air duct is connected with the air outlet area; A first bypass air duct section is formed between the top wall of the evaporator and the top wall of the heat exchange zone, and the air inlet end of the first bypass air duct section is connected to the air inlet zone; a second bypass air duct section is formed between the top wall of the first auxiliary heat exchanger and the top wall of the shell, and the air outlet end of the second bypass air duct section is connected to the air inlet end of the B auxiliary air duct; the air outlet end of the first bypass air duct section and the air inlet end of the second bypass air duct section are connected to form the bypass air duct.

11. A clothes processing device, It is characterized in that The clothing processing equipment includes a clothing processing drum and a heat pump device according to any one of claims 1 to 10, the clothing processing drum is formed with a drying air inlet and a drying air outlet, the heat pump device also includes a fan and a filter; the drying air inlet, the shell, the fan and the drying air outlet are connected in sequence, and the filter is arranged inside the shell and close to the drying air inlet.

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