Heat pump system, integrated system of energy supply coupling heat pump and control method for integrated system

By using a phase change heat exchanger instead of a water tank in a heat pump system, combined with a renewable energy power generation module, the problems of bacterial growth and space occupation in the water tank are solved, enabling instant hot water output and heat storage, and improving the system's safety and integration.

CN121557536APending Publication Date: 2026-02-24SHENZHEN OURUIBO ELECTRONICS
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Patent Information

Application Number
CN202512007408.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing heat pump systems suffer from bacterial growth in water tanks, high maintenance costs, and large space requirements, which limit the miniaturization and integration of the system.

Method used

A phase change heat exchanger is used to replace the water tank, and instant hot water output is achieved through heat exchange between the refrigerant and the domestic water circuit. It is combined with a renewable energy power generation module for heat storage, thus constructing an integrated energy supply coupled heat pump system.

Benefits of technology

Improve water safety, reduce maintenance costs, promote the miniaturization and integration of heat pump systems, and achieve peak shaving and valley filling effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a heat pump system, an integrated system of an energy supply coupling heat pump and a control method for the integrated system. The heat pump system comprises a compressor, an outdoor side heat exchanger, an indoor heat exchange device, a refrigerant pipeline, a living waterway and a first phase change heat exchanger. The compressor, the outdoor heat exchanger and the indoor heat exchange device are connected through the refrigerant pipeline. The domestic waterway is used for providing domestic water and is provided with a water outlet end for outputting water to the outside of the heat pump system; a refrigerant inlet and a refrigerant outlet of the first phase change heat exchanger are connected into a refrigerant pipeline so as to absorb and store refrigerant heat entering the first phase change heat exchanger, and therefore heat exchange between the first phase change heat exchanger and the living waterway is achieved. According to the heat pump system, domestic hot water is prepared through the phase change heat exchanger, and hot water can be output in an instant heating mode.
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Description

Technical Field

[0001] This invention relates to the field of heat pump technology, and more particularly to a heat pump system, an integrated system for power supply coupled to a heat pump, and a control method therefor. Background Technology

[0002] Current heat pump systems have multiple functions, including producing domestic hot water, cooling, and heating. Heat pump systems are typically equipped with a water tank for storing hot water.

[0003] However, the use of water tanks has certain limitations in practical applications. Firstly, the warm, relatively enclosed environment of a water tank makes it a breeding ground for bacteria and microorganisms, especially when water usage is infrequent or water replenishment is not timely, posing a potential health risk to users. Secondly, to inhibit bacterial growth, the water tank usually needs to be cleaned regularly, increasing system maintenance costs and operational complexity. Furthermore, water tanks occupy significant installation space, limiting the application of heat pump systems in space-constrained locations, and also increasing initial configuration costs and structural complexity, hindering the miniaturization and integration of heat pump systems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an improved heat pump system, an integrated system for power supply coupled to the heat pump, and a control method therefor.

[0005] The technical solution adopted by this invention to solve its technical problem is: constructing a heat pump system, which includes: The compressor is used to compress refrigerant; An outdoor heat exchanger is used to exchange heat between the refrigerant and the external environment. An indoor heat exchange device, which is used to achieve heat exchange in the indoor environment; The refrigerant piping connects the compressor, the outdoor heat exchanger, and the indoor heat exchange device to achieve refrigerant circulation. A domestic water system is provided for supplying domestic water; the domestic water system is provided with an outlet that outputs water to the outside of the heat pump system; The first phase change heat exchanger has a refrigerant inlet and a refrigerant outlet, wherein the refrigerant inlet and the refrigerant outlet are respectively connected to the refrigerant pipeline to absorb and store the heat of the refrigerant entering the first phase change heat exchanger, thereby realizing the heat exchange between the first phase change heat exchanger and the domestic water circuit.

[0006] In some embodiments, the heat pump system includes a housing disposed on the outdoor side, and an electrical control assembly and a valve assembly disposed within the housing; The interior of the housing defines a top-side mounting area at the top, two horizontally arranged side-by-side mounting areas below the top-side mounting area, and a bottom-side mounting area below at least one of the horizontal mounting areas. The compressor and the valve assembly are arranged in the same mounting area to form a co-location assembly; The electrical control assembly and the first phase change heat exchanger are respectively installed in the top side mounting area and the bottom side mounting area; the same-area assembly and the outdoor side heat exchanger are respectively installed in the two horizontal mounting areas.

[0007] In some embodiments, the two horizontal mounting areas include a first mounting area and a second mounting area; the bottom mounting area is located below the second mounting area and on the horizontal side of the first mounting area; the outdoor heat exchanger is mounted in the first mounting area, and the same-area component is mounted in the second mounting area; Alternatively, the bottom mounting area is located below the two horizontal mounting areas; the same-area component and the outdoor heat exchanger are respectively installed in the two horizontal mounting areas.

[0008] In some embodiments, the heat pump system includes a housing disposed on the outdoor side, and an electronic control assembly and a valve assembly disposed within the housing; The interior of the housing defines two horizontally arranged side-by-side mounting areas, as well as a side mounting area located on the longitudinal side of at least one of the horizontal mounting areas. The compressor, the valve assembly, and the electronic control assembly are arranged in the side mounting area; The first phase change heat exchanger and the outdoor heat exchanger are respectively installed in the two horizontal installation areas.

[0009] In some embodiments, the two horizontal mounting areas include a first mounting area and a second mounting area; the side mounting area is located on the longitudinal side of the second mounting area and on the horizontal side of the first mounting area; the first phase change heat exchanger is mounted in the first mounting area, and the outdoor heat exchanger is mounted in the second mounting area; Alternatively, the side mounting areas are all located on the longitudinal side of the two horizontal mounting areas; the first phase change heat exchanger and the outdoor heat exchanger are respectively installed in the two horizontal mounting areas.

[0010] In some embodiments, the indoor heat exchange device includes an air conditioning side pipe arranged on the indoor side and a second phase changer having a first end and a second end, wherein the first end and the second end are respectively connected to the refrigerant pipe to absorb and store the refrigerant energy entering the second phase changer, thereby realizing heat exchange between the second phase changer and the air conditioning side pipe.

[0011] In some embodiments, the heat pump system includes a housing disposed on the outdoor side, and an electrical control assembly and a valve assembly disposed within the housing; The interior of the housing defines three horizontally arranged mounting areas, as well as a side mounting area located on the longitudinal side of at least one of the three horizontal mounting areas. The outdoor heat exchanger is installed in one of the three horizontal installation areas; The compressor, the valve assembly, and the electronic control assembly are arranged in the same installation area to form a co-location assembly; the co-location assembly, the first phase change heat exchanger, and the second phase change heat exchanger are respectively installed in the remaining two horizontal installation areas and the side installation area.

[0012] In some embodiments, the three horizontal mounting areas include a second mounting area located in the middle, and a first mounting area and a third mounting area located on both horizontal sides of the second mounting area, respectively; the side mounting areas are all located on the same longitudinal side of the three horizontal mounting areas; the outdoor heat exchanger is installed in the first mounting area, the same-area component is installed in the second mounting area, the second phase change heat exchanger is installed in the third mounting area, and the first phase change heat exchanger is installed in the side mounting area; Alternatively, the three horizontal installation areas include a second installation area located in the middle, and a first installation area and a third installation area located on both horizontal sides of the second installation area; the side installation areas are all located on the same longitudinal side of the three horizontal installation areas; the same-area component is installed in the first installation area, the outdoor heat exchanger is installed in the second installation area, the second phase change heat exchanger is installed in the third installation area, and the first phase change heat exchanger is installed in the side installation area; Alternatively, the three horizontal installation areas include a second installation area located in the middle, and a first installation area and a third installation area located on both horizontal sides of the second installation area; the side installation areas are all located on the same longitudinal side of the three horizontal installation areas; the outdoor heat exchanger is installed in the first installation area, the second phase change heat exchanger is installed in the second installation area, the same-area component is installed in the third installation area, and the first phase change heat exchanger is installed in the side installation area; Alternatively, the three horizontal installation areas include a second installation area located in the middle, and a first installation area and a third installation area located on both horizontal sides of the second installation area; the side installation areas are all located on the same longitudinal side of the three horizontal installation areas; the outdoor heat exchanger is installed in the first installation area, one of the first phase change heat exchanger and the second phase change heat exchanger is installed in the second installation area, the other of the first phase change heat exchanger and the second phase change heat exchanger is installed in the third installation area, and the same-area component is installed in the side installation area; Alternatively, the three horizontal installation areas include a second installation area located in the middle, and a first installation area and a third installation area located on both horizontal sides of the second installation area; the side installation areas are all located on the same longitudinal side of the three horizontal installation areas; one of the first phase change heat exchanger and the second phase change heat exchanger is installed in the first installation area, the outdoor heat exchanger is installed in the second installation area, the other of the first phase change heat exchanger and the second phase change heat exchanger is installed in the third installation area, and the same-area component is installed in the side installation area; Alternatively, the three horizontal installation areas include a second installation area located in the middle, and a first installation area and a third installation area located on both horizontal sides of the second installation area; the side installation area and the third installation area are located on the same horizontal side of the second installation area, and the side installation area is located on the longitudinal side of the third installation area; the same-area component is installed in the first installation area, the outdoor heat exchanger is installed in the second installation area, one of the first phase change heat exchanger and the second phase change heat exchanger is installed in the third installation area, and the other of the first phase change heat exchanger and the second phase change heat exchanger is installed in the side installation area.

[0013] In some embodiments, the heat pump system has at least one of the following operating conditions: hot water operation, heating operation, and cooling operation; The hot water operating conditions include a hot water storage mode and a hot water supply mode. In the hot water storage mode, the first phase changer absorbs and stores the heat from the refrigerant in the refrigerant pipeline. In the hot water supply mode, the first phase changer exchanges the stored heat with the domestic water circuit, so that the domestic water circuit outputs hot water. The heating operation includes a heating energy storage mode and a heating mode; in the heating energy storage mode, the second phase changer absorbs and stores the heat from the refrigerant in the refrigerant pipeline; in the heating mode, the second phase changer exchanges the stored heat with the air conditioning side pipeline to achieve heating. The cooling operation includes a cooling capacity storage mode and a cooling mode. In the cooling capacity storage mode, the second phase changer absorbs and stores the cooling capacity of the refrigerant after it has been regulated by at least one device in the outdoor heat exchanger and the first phase changer. In the cooling mode, the second phase changer exchanges the stored cooling capacity with the air conditioning side piping to achieve cooling.

[0014] The present invention constructs an integrated system for a power supply coupled to a heat pump, comprising the aforementioned heat pump system and a power supply system connected to the heat pump system; The power supply system includes a mains interface module and / or a renewable energy generation module.

[0015] In some embodiments, the integrated system further includes a control system configured to: When the preset energy storage conditions are met, the renewable energy power generation module or the mains interface module is controlled to supply power to the heat pump system, so that the phase change heat exchanger performs energy storage work. When the preset energy release conditions are met, the phase change heat exchanger is controlled to perform heat exchange operations.

[0016] The present invention also provides a control method for an integrated system of a power-coupled heat pump as described above, the control method comprising: When the output power of the renewable energy power generation module is greater than or equal to the preset value, the renewable energy power generation module is used to supply power to drive the heat pump system and thus complete the energy storage work of the phase change heat exchanger. And / or, when the mains power is in off-peak hours, the heat pump main unit system is driven by off-peak electricity to complete the energy storage work of the phase change heat exchanger; And / or, when the mains power is at its peak, the phase change heat exchanger releases cooling or heating energy to regulate the ambient temperature or supply domestic hot water.

[0017] Implementing this invention offers the following advantages: This heat pump system, by employing a phase change heat exchanger to produce domestic hot water, can achieve instantaneous hot water output without the need for a water tank. This improves water safety and facilitates the miniaturization and integration of heat pump systems. Furthermore, the phase change heat exchanger can serve as a pre-storage unit, allowing it to be configured for heat storage during off-peak electricity hours or when powered by an externally connected renewable energy generation module, thereby achieving peak shaving and valley filling. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a system schematic diagram of the heat pump system of the present invention in Embodiment 1; Figure 2This is a system schematic diagram of the heat pump system of the present invention in Embodiment 2; Figure 3 This is a system schematic diagram of the heat pump system of the present invention in Embodiment 3; Figure 4 yes Figure 3 The diagram shown is a schematic of the refrigerant circulation loop of the heat pump system in the first loop. Figure 5 yes Figure 3 The diagram shown is a schematic of the refrigerant circulation loop of the heat pump system in the second loop. Figure 6 yes Figure 3 The diagram shows the refrigerant circulation loop of the heat pump system in the third loop. Figure 7 yes Figure 3 The diagram shows the refrigerant circulation loop of the heat pump system in the fourth loop. Figures 8-13 This is a schematic diagram showing the layout of the housing of the heat pump system of the present invention in some embodiments.

[0019] in, Figures 4-7 The straight line segments, dashed line segments, and dotted line segments shown represent the flow paths of high-temperature, high-pressure gaseous refrigerant, liquid / gas-liquid mixture refrigerant, and low-temperature, low-pressure gaseous refrigerant, respectively. Figure 4 The two dashed line segments represent the flow paths of gaseous refrigerant that has undergone one cryogenic treatment and gaseous refrigerant that has undergone two cryogenic treatments, respectively. Figure label: Compressor 1; Outdoor heat exchanger 2; First refrigerant port 21; Second refrigerant port 22; Indoor heat exchange device 3; Indoor heat exchanger 31; Third refrigerant port 311; Fourth refrigerant port 312; Air conditioning side piping 32; Domestic water circuit 4; Inlet 41; Outlet 42; First phase change heat exchanger 5; Refrigerant inlet 51; Refrigerant outlet 52; First throttling device 61; Gas pipe 62; Liquid pipe 63; First valve 64; Second valve 65; Third valve 66; Underfloor heating heat exchanger 71; Underfloor heating side circulation piping 72; One-way guide device 73; Second throttling device 74; Second phase change heat exchanger 8; First end 81; Second end 82; First reversing valve 91; Second reversing valve 92; Third reversing valve 93; Throttling device 94; First one-way valve 95; Second one-way valve 96; Housing 10; Top mounting area 101; Horizontal mounting area 102; First mounting area 1021; Second mounting area 1022; Third mounting area 1023; Bottom mounting area 103; Side mounting area 104. Detailed Implementation

[0020] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0021] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0022] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0023] Please refer to Figures 1-7 The present invention discloses a heat pump system, which mainly includes a refrigerant circulation architecture, a domestic water circuit 4, and a first phase conversion heat exchanger 5.

[0024] See also Figure 1 or Figure 3 The refrigerant circulation architecture can form a closed loop for refrigerant circulation. The refrigerant undergoes a phase change from gaseous to liquid states and completes heat exchange within this closed loop.

[0025] The domestic water circuit 4 is used to provide domestic water; the domestic water circuit 4 is provided with an inlet end 41 and an outlet end 42, and the outlet end 42 is configured to output hot water to the outside of the heat pump system.

[0026] The first phase change heat exchanger 5 is configured to be connected to the refrigerant circulation architecture. By absorbing and storing the heat of the refrigerant entering the first phase change heat exchanger 5, heat exchange is realized between the first phase change heat exchanger 5 and the domestic water circuit 4.

[0027] Understandably, since the first phase change heat exchanger 5 is connected to the refrigerant circulation architecture, the refrigerant in the refrigerant circulation architecture can flow through the first phase change heat exchanger 5. When the high-temperature, high-pressure refrigerant passes through the first phase change heat exchanger 5, the phase change material filled in the first phase change heat exchanger 5 can absorb and store the heat from the refrigerant (phase change material charging process). Then, when the user needs domestic hot water, the domestic water circuit 4 is opened, and the domestic water passes through the interior of the first phase change heat exchanger 5 and undergoes heat exchange (phase change material releasing process), so that the water output from the outlet 42 of the domestic water circuit 4 is hot water (equivalent to an instant water heater).

[0028] Therefore, the heat pump system of the present invention eliminates the water tank and outputs hot water in an instantaneous manner. This improves water safety and facilitates the miniaturization and integration of the heat pump system. Furthermore, the heat storage function of the first phase changer 5 can be pre-configured to operate during off-peak hours or during the power generation periods of an externally connected renewable energy power generation module. This reduces user costs and effectively avoids high-power operation during peak hours, thus achieving peak shaving and valley filling.

[0029] Further reading can be found here. Figure 1 or Figure 3 The refrigerant circulation architecture mainly includes a compressor 1, an outdoor heat exchanger 2, an indoor heat exchange device 3, and refrigerant pipelines.

[0030] The compressor 1 is used to compress refrigerant. The compressor 1 has an inlet and an outlet.

[0031] The outdoor heat exchanger 2 is used to achieve heat exchange between the refrigerant and the outside air. The outdoor heat exchanger 2 includes a first refrigerant port 21 and a second refrigerant port 22. The first refrigerant port 21 can be connected to the outlet and inlet of the compressor 1 through the refrigerant pipeline, respectively.

[0032] The indoor heat exchange device 3 is used to achieve heat exchange of indoor ambient air.

[0033] The refrigerant pipeline is provided in multiple lines, which respectively connect the compressor 1, the outdoor heat exchanger 2 and the indoor heat exchange device 3, so as to provide a basis for the circulation of refrigerant.

[0034] Further, see Figure 1 or Figure 3 The first phase change heat exchanger 5 is provided with a refrigerant inlet 51 and a refrigerant outlet 52, wherein the refrigerant inlet 51 and the refrigerant outlet 52 are respectively connected to the refrigerant pipeline. The refrigerant in the refrigerant pipeline can enter the first phase change heat exchanger 5 from the refrigerant inlet 51 and return to the refrigerant pipeline from the refrigerant outlet 52. A portion of the domestic water circuit 4 is arranged in the first phase change heat exchanger 5 and is independent of the refrigerant pipeline.

[0035] This heat pump system has a hot water storage mode and a hot water supply mode. In the hot water storage mode, the first phase change heat exchanger 5 absorbs and stores the heat from the refrigerant in the refrigerant pipeline. In the hot water supply mode, the first phase change heat exchanger 5 exchanges the stored heat with the domestic water circuit 4, so that the domestic water circuit 4 outputs hot water.

[0036] It is understood here that the hot water storage mode and the hot water supply mode can operate independently or simultaneously. Operating the hot water storage mode independently means that the first phase changer 5 only stores heat; operating the hot water supply mode independently means that the first phase changer 5 uses the previously stored heat to exchange heat with the domestic water circuit 4; and operating both modes simultaneously means that the first phase changer 5 absorbs heat while simultaneously exchanging heat.

[0037] The following uses the illustrated embodiment as an example to further illustrate the specific architecture of this heat pump system.

[0038] Example 1 Please see Figure 1 In this embodiment, the heat pump system includes a compressor 1, an outdoor heat exchanger 2, an indoor heat exchange device 3, refrigerant piping, a domestic water pipe 4, and a first phase changer 5.

[0039] The indoor heat exchange device 3 includes an indoor heat exchanger 31. The indoor heat exchanger 31 can be a finned heat exchanger or a plate heat exchanger. It should be noted that when the indoor heat exchanger 31 is a plate heat exchanger, the indoor heat exchange device 3 also includes plate piping for heat exchange with the plate heat exchanger.

[0040] like Figure 1As shown, the indoor heat exchanger 31 is provided with a third refrigerant port 311 and a fourth refrigerant port 312. The third refrigerant port 311 is connected to the second refrigerant port 22 via a refrigerant pipeline, and the fourth refrigerant port 312 is connected to the outlet and inlet of the compressor 1 via the refrigerant pipeline. A first throttling element 61 is provided on the refrigerant pipeline connecting the third refrigerant port 311 and the second refrigerant port 22, for throttling the refrigerant output from the third refrigerant port 311 or the refrigerant to be introduced into the third refrigerant port 311.

[0041] The refrigerant circulation architecture also includes components such as gas pipe 62, liquid pipe 63, and valve assemblies. Figure 1 As shown, the gas pipe 62 and the liquid pipe 63 serve to divide and merge the flow. The gas pipe 62 is connected to the outlet and inlet of the compressor 1, respectively. The second refrigerant port 22 and the third refrigerant port 311 are connected to the liquid pipe 63 through the refrigerant pipeline. The fourth refrigerant port 312, the outlet and the inlet of the compressor 1 are connected to the gas pipe 62 through the refrigerant pipeline.

[0042] The valve assembly includes a first valve 64, a second valve 65, and a third valve 66. The second valve 65 has two connection ends, connected via the refrigerant pipeline to the outlet of the compressor 1 and the refrigerant inlet 51 of the first phase change heat exchanger 5, respectively. The first valve 64 has three connection ends, connected via the refrigerant pipeline to the outlet of the compressor 1, the refrigerant outlet 52 of the first phase change heat exchanger 5, and one connection end of the third valve 66, respectively. The third valve 66 has four connection ends, connected via the refrigerant pipeline to the corresponding connection end of the first valve 64, the gas pipe 62, the first refrigerant port 21, and the inlet of the compressor 1, respectively.

[0043] It is understood that the refrigerant circulation architecture typically includes, but is not limited to, electronic control components, gas-liquid separators, and dryer filters. The structure, working principles, and specific connection methods of these devices in the system are all common knowledge or existing technology in the field. To simplify the explanation and highlight the key improvements of this invention, this embodiment only selects some devices for description; the remaining components are not described in detail here. Related details can be found in [reference needed]. Figure 1 Alternatively, it can be achieved by combining it with existing heat pump technology.

[0044] Therefore, the heat pump system of this embodiment can form multiple refrigerant circulation loops, including but not limited to: The refrigerant output from the compressor 1 flows sequentially through the first phase change heat exchanger 5, the outdoor heat exchanger 2, and the indoor heat exchanger 31 before returning to the first circuit of the compressor 1. The refrigerant output from the compressor 1 flows sequentially through the first phase change heat exchanger 5 and the indoor heat exchanger 31 before returning to the second circuit of the compressor 1. Part of the refrigerant output from the compressor 1 flows through the first phase change heat exchanger 5, and the other part flows through the indoor heat exchanger 31. Then the two refrigerants converge in the gas pipe 62 and return to the third circuit of the compressor 1 through the outdoor heat exchanger 2. The refrigerant from the compressor 1 flows sequentially through the indoor heat exchanger 31 and the outdoor heat exchanger 2 before returning to the fourth circuit of the compressor 1. The refrigerant produced by the compressor 1 flows sequentially through the first phase change heat exchanger 5 and the outdoor heat exchanger 2, and then returns to the fifth circuit of the compressor 1; The refrigerant output from the compressor 1 flows sequentially through the outdoor heat exchanger 2 and the indoor heat exchanger 31 before returning to the sixth circuit of the compressor 1.

[0045] It can be explained here that the first loop is used to achieve indoor cooling and hot water-side heating, with some heat being recovered and reused in the first phase changer 5. The second loop is used to achieve indoor cooling and hot water-side heating, with all heat being recovered and reused in the first phase changer 5. The third loop is used to achieve indoor heating and hot water-side heating. The fourth loop is used to achieve indoor heating. The fifth loop can achieve hot water-side heating. The sixth loop can achieve indoor cooling. The hot water-side heating mentioned here can be understood as the first phase changer 5 storing heat; whether or not hot water is supplied depends on the on / off state of the domestic water circuit 4.

[0046] In other words, a heat pump system has at least one of the following operating modes: hot water mode, heating mode, and cooling mode. The hot water mode, heating mode, and cooling mode can operate independently, or the hot water mode can be operated in conjunction with the heating mode or cooling mode.

[0047] The hot water operation includes a hot water storage mode and a hot water supply mode, as described above. In the heating mode, the high-temperature, high-pressure refrigerant generated by the compressor 1 flows through the indoor heat exchanger 31 and exchanges heat with the indoor heat exchange medium (air or refrigerant in a plate-type pipe system), thereby achieving heating. In the cooling mode, the high-temperature, high-pressure refrigerant generated by the compressor 1, after being regulated by at least one of the outdoor heat exchanger 2, the first phase changer 5, and the first throttling device 61, passes through the indoor heat exchanger 31 and exchanges heat with the indoor heat exchange medium, thereby achieving cooling.

[0048] Example 2 See Figure 2This embodiment is an improvement on embodiment 1. The improvement is that a floor heating heat exchanger 71 and a floor heating side circulation pipe 72 are added to the refrigerant circulation architecture to realize floor heating and / or floor cooling functions.

[0049] Specifically, the underfloor heating side circulation pipe 72 is used to be installed indoors, for example, laid on the indoor floor.

[0050] The underfloor heating heat exchanger 71 is used for heat exchange with the medium in the underfloor heating side circulation pipe 72. For example... Figure 2 As shown, the floor heating heat exchanger 71 has an inlet end and an outlet end for refrigerant to pass through. The inlet end of the floor heating heat exchanger 71 is connected to the outlet of the compressor 1 via the gas pipe 62, and the outlet end of the floor heating heat exchanger 71 is connected to the second refrigerant port 22 via the liquid pipe 63.

[0051] On the connecting pipe between the outlet end of the floor heating heat exchanger 71 and the liquid pipe 63, there is a one-way flow element 73 and a second throttling element 74. The input end of the one-way flow element 73 is connected to the outlet end of the floor heating heat exchanger 71 to prevent low-temperature refrigerant from entering the interior of the floor heating heat exchanger 71 from the outlet end during cooling by the heat pump system, thus preventing the floor heating heat exchanger 71 from freezing and damaging it. The second throttling element 74 is used to throttle the refrigerant output from the outlet end of the floor heating heat exchanger 71 to meet the refrigerant cooling requirements.

[0052] In this embodiment, in addition to the operating conditions mentioned above, the heat pump system also includes a floor heating mode and / or a floor cooling mode. The floor heating mode can operate independently or in combination with the heating mode and / or the hot water mode to meet user needs. The same applies to the floor cooling mode.

[0053] Example 3 See Figure 3 In Embodiment 3, the heat pump system also includes a compressor 1, an outdoor heat exchanger 2, an indoor heat exchange device 3, refrigerant piping, domestic water piping 4, and a first phase change heat exchanger 5. Notably, the air conditioning side of the heat pump system in Embodiment 3 also includes a phase change heat exchanger. This advantage lies in the fact that the phase change heat exchanger can function as an energy storage device, playing a positive role in optimizing system energy efficiency.

[0054] Specifically, such as Figure 3 As shown, the indoor heat exchange device 3 includes a second phase heat exchanger 8, which is part of the refrigerant circulation architecture. Simultaneously, the indoor heat exchange device 3 includes an air conditioning side pipe 32 arranged on the indoor side, a portion of which is arranged within the second phase heat exchanger 8 and is relatively independent from the refrigerant pipe.

[0055] The second phase change heat exchanger 8 is provided with a first end 81 and a second end 82, wherein the first end 81 and the second end 82 of the second phase change heat exchanger 8 are respectively connected to the refrigerant pipeline to absorb and store the refrigerant energy entering the second phase change heat exchanger 8, thereby realizing the heat exchange between the second phase change heat exchanger 8 and the air conditioning side pipeline 32.

[0056] It should be noted that refrigerant energy includes both heat and cold. When the weather is hot, the low-temperature liquid refrigerant in the refrigerant circulation architecture can pass through the second phase change heat exchanger 8. The phase change material in the second phase change heat exchanger 8 absorbs and stores the cold energy of the refrigerant (the phase change material cold storage process). Then, when air conditioning is needed, it directly exchanges heat with the second phase change heat exchanger 8 through the air conditioning side pipe 32 (the phase change material heat absorption process), thus achieving indoor cooling. Similarly, when the weather is cold, the high-temperature gaseous refrigerant in the refrigerant circulation architecture can pass through the second phase change heat exchanger 8. The phase change material in the second phase change heat exchanger 8 absorbs and stores the heat of the refrigerant (the phase change material heat storage process). Then, when air conditioning is needed for heating, it directly exchanges heat with the second phase change heat exchanger 8 through the air conditioning side pipe 32 (the phase change material heat release process), thus achieving indoor heating.

[0057] Therefore, the heat pump system in Example 3 is equipped with two phase change heat exchangers, which is equivalent to increasing the rated energy storage capacity. This gives the system a better peak shaving and valley filling capability, and allows it to make full use of off-peak electricity hours or the power generation hours of externally connected renewable energy power generation modules for energy storage, thereby reducing operating energy efficiency and electricity costs.

[0058] Furthermore, in this embodiment, the refrigerant circulation architecture also includes a throttling device 94, valve components, and other devices.

[0059] Specifically, see Figure 3 The refrigerant circulation architecture includes a first reversing valve 91, a second reversing valve 92, and a third reversing valve 93. The second reversing valve 92 has four connection ends, respectively connected to the outlet of the compressor 1, the second end 82 of the second phase change heat exchanger 5, the first refrigerant port 21, and the inlet of the compressor 1 via the refrigerant pipeline. The second reversing valve 92 also has three connection ends, respectively connected to the outlet of the compressor 1, the refrigerant inlet 51 of the first phase change heat exchanger 5, and the end of the first reversing valve 91 connected to the outlet of the compressor 1 via the refrigerant pipeline. The third reversing valve 93 has three connection ends, respectively connected to the refrigerant outlet 52 of the first phase change heat exchanger 5, the pipeline between the first end 81 of the second phase change heat exchanger 8 and the second refrigerant port 22, and the end of the first reversing valve 91 connected to the outlet of the compressor 1.

[0060] Two throttling devices 94 connected in series are also provided on the pipeline between the second refrigerant port 22 and the first end 81 of the second phase change heat exchanger 8, as well as a first check valve 95 and a second check valve 96 respectively installed at the two throttling devices 94. The first check valve 95 is connected in parallel with the switch valve of the two switch valves connected to the second refrigerant port 22, and the input end of the first check valve 95 is connected to the second refrigerant port 22 through the refrigerant pipeline; the second check valve 96 is connected in parallel with the switch valve of the two switch valves connected to the first end 81, and the input end of the second check valve 96 is connected to the first end 81 through the refrigerant pipeline.

[0061] It is understood here that the refrigerant circulation architecture typically includes, but is not limited to, electronic control components, gas-liquid separators, and dryer filters. The structure, working principles, and specific connection methods of these devices in the system are all common knowledge or existing technology in the field. To simplify the explanation and highlight the key improvements of this invention, this embodiment... Figure 3 Some conventional components will be concealed. The relevant details can be achieved by incorporating existing heat pump technology.

[0062] Based on this, the heat pump system of this embodiment can form multiple refrigerant circulation loops, including but not limited to: like Figure 4 As shown, the refrigerant produced by the compressor 1 flows sequentially through the first phase change heat exchanger 5, the outdoor heat exchanger 2, and the second phase change heat exchanger 8 before returning to the first circuit of the compressor 1. like Figure 5 As shown, the refrigerant output from the compressor 1 flows sequentially through the first phase change heat exchanger 5 and the second phase change heat exchanger 8, and then returns to the second circuit of the compressor 1; like Figure 6 As shown, part of the refrigerant output from the compressor 1 flows through the first phase change heat exchanger 5, and the other part flows through the second phase change heat exchanger 8. Then the two refrigerant lines merge at the refrigerant pipeline connected to the second refrigerant port 22 and return to the third circuit of the compressor 1 through the outdoor heat exchanger 2. like Figure 7 As shown, the refrigerant output from the compressor 1 flows sequentially through the second phase change heat exchanger 8 and the outdoor heat exchanger 2 before returning to the fourth circuit of the compressor 1.

[0063] It also includes: the refrigerant output from the compressor 1 flows sequentially through the first phase change heat exchanger 5 and the outdoor heat exchanger 2, before returning to the fifth circuit of the compressor 1. (This circuit is not shown in the figure.) The refrigerant output from the compressor 1 flows sequentially through the outdoor heat exchanger 2 and the second phase change heat exchanger 8, before returning to the sixth circuit of the compressor 1. (This circuit is not shown in the figure.) It can be explained here that the first loop is used to achieve air conditioning-side cooling and hot water-side heating, with some heat being recovered and reused in the first phase changer 5. The second loop is used to achieve air conditioning-side cooling and hot water-side heating, with all heat being recovered and reused in the first phase changer 5. The third loop is used to achieve air conditioning-side heating and hot water-side heating. The fourth loop is used to achieve air conditioning-side heating. The fifth loop can achieve hot water-side heating. The sixth loop is used to achieve air conditioning-side cooling. The hot water-side heating mentioned here can be understood as the first phase changer 5 storing heat; whether hot water is supplied depends on the on / off state of the domestic water circuit 4. Similarly, air conditioning-side cooling / heating can be understood as the second phase changer 8 storing cold / heat; whether cold / heating is supplied depends on whether the air conditioning-side pipe 32 is operational.

[0064] In other words, in this embodiment, the heat pump system also has at least one of the following operating modes: hot water mode, heating mode, and cooling mode. The hot water mode includes a hot water storage mode and a hot water supply mode, as detailed above. The heating mode includes a heating storage mode and a heating mode; in the heating storage mode, the second phase changer 8 absorbs and stores the refrigerant heat from the refrigerant pipeline; in the heating mode, the second phase changer 8 exchanges its stored heat with the air conditioning side pipeline 32 to achieve heating. The cooling mode includes a cooling capacity storage mode and a cooling mode; in the cooling capacity storage mode, the second phase changer 8 absorbs and stores the refrigerant cooling capacity regulated by at least one of the outdoor heat exchanger 2 and the first phase changer 5; in the cooling mode, the second phase changer 8 exchanges its stored cooling capacity with the air conditioning side pipeline 32 to achieve cooling.

[0065] Understandably, the aforementioned energy storage mode and braking mode (a collective term for hot water supply mode, heating mode, and cooling mode) can operate independently or simultaneously. Operating the energy storage mode alone means the phase change heat exchanger only stores energy; operating the braking mode alone means the phase change heat exchanger uses the previously stored energy for heat exchange; and operating both the energy storage and braking modes simultaneously means the phase change heat exchanger absorbs energy while simultaneously exchanging heat.

[0066] In summary, the above description, from an architectural perspective, details the heat pump systems in several embodiments of the present invention. The following description, from an installation layout perspective, details the specific installation of the phase change heat exchanger of the present invention. Specifically: Taking the heat pump system of Embodiment 1 as an example, the heat pump system includes a housing 10 for placement on the outdoor side. The housing 10 can accommodate the compressor 1, the first phase change heat exchanger 5 and the outdoor heat exchanger 2, and can also accommodate electronic control components, low-pressure gas-liquid separators and valve components, etc.

[0067] Example 1-1 See Figure 8 or Figure 9 The interior of the housing 10 defines a top-side mounting area 101 at the top, two horizontally arranged mounting areas 102 below the top-side mounting area 101, and a bottom-side mounting area 103 below at least one of the horizontal mounting areas 102. The compressor 1, the valve assembly, and the low-pressure gas-liquid separator are arranged in the same mounting area to form a co-mounted assembly; the electronic control assembly and the first phase change heat exchanger 5 are respectively installed in the top-side mounting area 101 and the bottom-side mounting area 103; the co-mounted assembly and the outdoor heat exchanger 2 are respectively installed in the two horizontal mounting areas 102.

[0068] Furthermore, such as Figure 8 As shown, the two horizontal installation areas 102 may include a first installation area 1021 and a second installation area 1022; the bottom side installation area 103 is located below the second installation area 1022 and on the horizontal side of the first installation area 1021; the outdoor heat exchanger 2 is installed in the first installation area 1021, and the same-area component is installed in the second installation area 1022.

[0069] Or, such as Figure 9 As shown, the bottom mounting area 103 is located below the two horizontal mounting areas 102; the same-area component and the outdoor heat exchanger 2 are respectively installed in the two horizontal mounting areas 102.

[0070] Examples 1-2 See Figure 10 or Figure 11 The interior of the housing 10 defines two horizontally arranged mounting areas 102, and a side mounting area 104 located on the longitudinal side of at least one of the horizontal mounting areas 102. The compressor 1, the valve assembly, the low-pressure gas-liquid separator, and the electrical control assembly are arranged in the side mounting area 104. The first phase change heat exchanger 5 and the outdoor heat exchanger 2 are respectively installed in the two horizontal mounting areas 102.

[0071] Furthermore, such as Figure 10As shown, the two horizontal mounting areas 102 include a first mounting area 1021 and a second mounting area 1022. The side mounting area 104 is located on the longitudinal side of the second mounting area 1022 and on the horizontal side of the first mounting area 1021. The first phase change heat exchanger 5 is installed in the first mounting area 1021, and the outdoor heat exchanger 2 is installed in the second mounting area 1022.

[0072] Or, such as Figure 11 As shown, the side mounting area 104 is located on the longitudinal side of the two horizontal mounting areas 102; the first phase change heat exchanger 5 and the outdoor side heat exchanger 2 are respectively installed in the two horizontal mounting areas 102.

[0073] Taking the heat pump system of Embodiment 3 as an example, the heat pump system also includes a housing 10 for placement on the outdoor side. In addition to accommodating the compressor 1, the first phase change heat exchanger 5, the outdoor heat exchanger 2, the electrical control components, the low-pressure gas-liquid separator and the valve components, the housing 10 is also used to accommodate the second phase change heat exchanger 8.

[0074] Example 3-1 See Figure 12 or Figure 13 The interior of the housing 10 defines three horizontally arranged mounting areas 102, and a side mounting area 104 located on the longitudinal side of at least one of the three horizontal mounting areas 102. The outdoor heat exchanger 2 is installed in one of the three horizontal mounting areas 102. The compressor 1, the valve assembly, the low-pressure gas-liquid separator, and the electrical control assembly are arranged in the same mounting area to form a co-mounted assembly; the co-mounted assembly, the first phase change heat exchanger 5, and the second phase change heat exchanger 8 are respectively installed in the remaining two horizontal mounting areas 102 and the side mounting area 104.

[0075] Further, refer to Figure 12 The three horizontal mounting areas 102 include a second mounting area 1022 located in the middle, and a first mounting area 1021 and a third mounting area 1023 located on both sides of the second mounting area 1022. The side mounting areas 104 are all located on the same longitudinal side of the three horizontal mounting areas 102.

[0076] The outdoor heat exchanger 2 is installed in the first installation area 1021, the same-area component is installed in the second installation area 1022, the second phase change heat exchanger 8 is installed in the third installation area 1023, and the first phase change heat exchanger 5 is installed in the side installation area 104.

[0077] Alternatively, the same-zone component is installed in the first installation area 1021, the outdoor heat exchanger 2 is installed in the second installation area 1022, the second phase change heat exchanger 8 is installed in the third installation area 1023, and the first phase change heat exchanger 5 is installed in the side-side installation area 104.

[0078] Alternatively, the outdoor heat exchanger 2 is installed in the first installation area 1021, the second phase change heat exchanger 8 is installed in the second installation area 1022, the same-area component is installed in the third installation area 1023, and the first phase change heat exchanger 5 is installed in the side installation area 104.

[0079] Alternatively, the outdoor heat exchanger 2 is installed in the first installation area 1021, one of the first phase change heat exchanger 5 and the second phase change heat exchanger 8 is installed in the second installation area 1022, the other of the first phase change heat exchanger 5 and the second phase change heat exchanger 8 is installed in the third installation area 1023, and the same-area component is installed in the side installation area 104.

[0080] Alternatively, one of the first phase change heat exchanger 5 and the second phase change heat exchanger 8 is installed in the first installation area 1021, the outdoor heat exchanger 2 is installed in the second installation area 1022, the other of the first phase change heat exchanger 5 and the second phase change heat exchanger 8 is installed in the third installation area 1023, and the same-area component is installed in the side installation area 104.

[0081] In addition to arranging the side mounting area 104 on the same longitudinal side of the three horizontal mounting areas 102, it can also be arranged as follows: Figure 13 As shown, the side mounting area 104 and the third mounting area 1023 are located on the same horizontal side of the second mounting area 1022, and the side mounting area 104 is located on the longitudinal side of the third mounting area 1023; the same-area component is installed in the first mounting area 1021, the outdoor heat exchanger 2 is installed in the second mounting area 1022, one of the first phase change heat exchanger 5 and the second phase change heat exchanger 8 is installed in the third mounting area 1023, and the other of the first phase change heat exchanger 5 and the second phase change heat exchanger 8 is installed in the side mounting area 104.

[0082] Based on the aforementioned various layout options for the internal structure of the casing, this invention also provides an outdoor unit. The outdoor unit includes a casing, inside which are installed components such as a compressor, an outdoor heat exchanger, a domestic water circuit, and a first phase change heat exchanger. The compressor is used to compress refrigerant, the outdoor heat exchanger is used to exchange heat between the refrigerant and the external environment, the domestic water circuit is used to provide domestic hot water and has an outlet terminal that outputs water to the outside of the outdoor unit, and the first phase change heat exchanger is used to exchange heat with the domestic water circuit to produce domestic hot water. Additionally, valve assemblies, low-pressure gas-liquid separators, etc., can also be installed inside the outdoor unit according to actual needs.

[0083] Example 4 Please refer to Figure 8 and Figure 9 The outdoor unit includes a housing 10, and the interior of the housing 10 includes a first mounting area 1021, a second mounting area 1022, a top mounting area 101, and a bottom mounting area 103. The specific layout of each component within the housing 10 is the same as in Embodiment 1-1, and will not be repeated here.

[0084] Example 5 Please refer to Figure 10 and Figure 11 The outdoor unit includes a housing 10, and the interior of the housing 10 includes a first mounting area 1021, a second mounting area 1022, and a bottom mounting area 104. The specific layout of each component within the housing 10 is the same as in embodiments 1-2, and will not be repeated here.

[0085] Example 6 Please refer to Figure 12 and Figure 13 The outdoor unit includes a housing 10, and the interior of the housing 10 includes a first mounting area 1021, a second mounting area 1022, a third mounting area 1023, and a side mounting area 104. Additionally, the outdoor unit in this embodiment also includes a second phase-change heat exchanger for storing cold or heat and for heat exchange. The specific layout of each component within the housing 10 is the same as in Embodiment 3-1, and will not be repeated here.

[0086] It should be noted that the first, second, and third mounting areas defined above only indicate their relative positions, not their sizes. For mounting areas with the same name in different layouts, their spatial dimensions may or may not be equal.

[0087] The above describes various implementation methods for installing the first phase change heat exchanger 5, and the first phase change heat exchanger 5 and the second phase change heat exchanger 8, into the outdoor unit and arranging them in conjunction with other components within the outdoor unit. By rationally setting the relative positions of each component within the outdoor unit, the internal structure of the outdoor unit can be made more compact while ensuring operational performance. This facilitates pipe connections and overall assembly, while also aiding in subsequent maintenance and repair, thus improving the overall practicality of the system. In particular, the heat pump system of this invention eliminates the need for a domestic water tank. This avoids the increased size and structural complexity associated with installing a water tank in the outdoor unit, and has positive implications for the miniaturization and integration of outdoor units.

[0088] Furthermore, the present invention also constructs an integrated system for a power supply coupled to a heat pump, comprising the aforementioned heat pump system and a power supply system connected to the heat pump system; the power supply system includes a mains power interface module and / or a renewable energy power generation module. The renewable energy power generation module may include at least one of a wind power generation module and a photovoltaic power generation module, for converting wind energy and / or solar energy into electrical energy and outputting it.

[0089] It is worth noting that this integrated system uses a phase change heat exchanger as one of the energy storage methods. By indirectly storing electricity generated during off-peak hours and from renewable energy sources through phase change thermal storage, it reduces reliance on battery modules and can even effectively utilize off-peak electricity and renewable energy generation without battery modules. This has a positive effect on reducing battery aging, safety risks, and subsequent maintenance burden.

[0090] The integrated system also includes a control system for detecting the system's operating status and executing control strategies. The control system may include a sensor module and a communication module. The sensor module is used to collect system operating parameters, such as the output power of the renewable energy generation module, mains electricity price information or peak / valley time information, and the temperature status of the phase-change heat exchanger. The communication module is used to enable interaction between the control system and external devices (such as an indoor control terminal or a mobile phone).

[0091] In some embodiments, the control system can be configured to: control the renewable energy generation module or the mains interface module to supply power to the heat pump system when preset energy storage conditions are met, so that the phase change heat exchanger performs energy storage operation; and control the phase change heat exchanger to perform heat exchange operation when preset energy release conditions are met.

[0092] The preset energy storage conditions may include: the output power of the renewable energy power generation module is greater than or equal to a preset value, and the mains power is during off-peak hours.

[0093] Preset energy storage conditions may include: the presence of an ambient temperature regulation or domestic hot water supply demand command and the phase changer storing energy, the mains power being in peak power hours, and the output power of the renewable energy power generation module being lower than a preset value.

[0094] Based on the above integrated system, this application also provides a control method, specifically including at least one of the following steps: When the output power of the renewable energy power generation module is greater than or equal to a preset value, the renewable energy power generation module is used as the primary power source to drive the heat pump system, thereby completing the energy storage function of the phase change heat exchanger. Optionally, when the output power of the renewable energy power generation module does not support the normal operation of the heat pump system, the power shortfall is supplemented by the mains power.

[0095] When the mains power is during off-peak hours, the heat pump main unit system is driven by off-peak electricity to complete the energy storage function of the phase change heat exchanger. Here, the control of whether the heat pump main unit system operates can also incorporate a judgment on the output power of the renewable energy power generation module. For example, when the mains power is during off-peak hours and the output power of the renewable energy power generation module is less than a preset value, the heat pump main unit system is driven by off-peak electricity to complete the energy storage function of the phase change heat exchanger.

[0096] When the mains power is at its peak, the phase-change heat exchanger releases cooling or heating energy to regulate the ambient temperature or supply domestic hot water. Here, the control of the heat pump system's operation can also incorporate a judgment of the output power of the renewable energy power generation module. For example, when the mains power is at its peak and the output power of the renewable energy power generation module is less than a preset value, the phase-change heat exchanger is preferentially used to release cooling or heating energy to regulate the ambient temperature or supply domestic hot water.

[0097] In some embodiments, the control method further includes: Energy monitoring steps: Real-time monitoring of the power generation status of the renewable energy generation module, as well as the electricity price and time period of the mains power; Secondly, the control method may also include: dynamically adjusting the operating period of the heat pump system and the energy storage or release timing of the phase change heat exchanger based on renewable energy power generation forecast information, electricity price information and load demand information.

[0098] Through the above technical solutions, the integrated system of energy-coupled heat pump can effectively utilize renewable energy power generation and off-peak electricity from the grid. It can store cold or heat during periods of abundant or low electricity prices and release the stored energy during periods of high electricity prices or energy shortages. This achieves peak shaving and valley filling, reduces operating costs, and improves the overall efficiency of energy utilization. At the same time, it reduces the frequent start-stop of compressor 1, thereby improving the stability and service life of the system.

[0099] It is understood that the above embodiments only illustrate some implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A heat pump system, characterized in that, It includes: Compressor (1), the compressor (1) being used to compress refrigerant; Outdoor heat exchanger (2), the outdoor heat exchanger (2) is used to exchange heat between the refrigerant and the external environment; Indoor heat exchange device (3), the indoor heat exchange device (3) is used to realize heat exchange in the indoor environment; The refrigerant pipeline connects the compressor (1), the outdoor heat exchanger (2) and the indoor heat exchange device (3) to each other to realize the circulation of refrigerant; A domestic water circuit (4) is used to provide domestic water; the domestic water circuit (4) is provided with an outlet (42) that outputs water to the outside of the heat pump system. The first phase change heat exchanger (5) is provided with a refrigerant inlet (51) and a refrigerant outlet (52), wherein the refrigerant inlet (51) and the refrigerant outlet (52) are respectively connected to the refrigerant pipeline to absorb and store the heat of the refrigerant entering the first phase change heat exchanger (5), thereby realizing the heat exchange between the first phase change heat exchanger (5) and the domestic water circuit (4).

2. The heat pump system according to claim 1, characterized in that, The heat pump system includes a housing (10) for placement on the outdoor side, and an electrical control assembly and a valve assembly disposed within the housing (10); The interior of the housing (10) defines a top side mounting area (101) at the top, two horizontal mounting areas (102) arranged horizontally side by side below the top side mounting area (101), and a bottom side mounting area (103) below at least one of the horizontal mounting areas (102). The compressor (1) and the valve assembly are arranged in the same installation area to form a co-installation assembly; The electrical control component and the first phase change heat exchanger (5) are respectively installed in the top side installation area (101) and the bottom side installation area (103); the same area component and the outdoor side heat exchanger (2) are respectively installed in the two horizontal installation areas (102).

3. The heat pump system according to claim 2, characterized in that, The two horizontal installation areas (102) include a first installation area (1021) and a second installation area (1022); the bottom side installation area (103) is located below the second installation area (1022) and is located on the horizontal side of the first installation area (1021); the outdoor heat exchanger (2) is installed in the first installation area (1021), and the same-area component is installed in the second installation area (1022); Alternatively, the bottom mounting area (103) is located below the two horizontal mounting areas (102); the same-area component and the outdoor heat exchanger (2) are respectively installed in the two horizontal mounting areas (102).

4. The heat pump system according to claim 1, characterized in that, The heat pump system includes a housing (10) arranged on the outdoor side, and an electrical control assembly and a valve assembly disposed within the housing (10); The interior of the housing (10) defines two horizontally arranged mounting areas (102) and a side mounting area (104) located on the longitudinal side of at least one of the horizontal mounting areas (102). The compressor (1), the valve assembly and the electronic control assembly are arranged in the side mounting area (104); The first phase change heat exchanger (5) and the outdoor heat exchanger (2) are respectively installed in the two horizontal installation areas (102).

5. The heat pump system according to claim 4, characterized in that, The two horizontal installation areas (102) include a first installation area (1021) and a second installation area (1022); the side installation area (104) is located on the longitudinal side of the second installation area (1022) and on the horizontal side of the first installation area (1021); the first phase change heat exchanger (5) is installed in the first installation area (1021), and the outdoor heat exchanger (2) is installed in the second installation area (1022); Alternatively, the side mounting area (104) is located on the longitudinal side of the two horizontal mounting areas (102); the first phase change heat exchanger (5) and the outdoor side heat exchanger (2) are respectively installed in the two horizontal mounting areas (102).

6. The heat pump system according to claim 1, characterized in that, The indoor heat exchange device (3) includes an air conditioning side pipe (32) arranged on the indoor side and a second phase change heat exchanger (8) with a first end (81) and a second end (82), wherein the first end (81) and the second end (82) are respectively connected to the refrigerant pipe to absorb and store the refrigerant energy entering the second phase change heat exchanger (8), thereby realizing the heat exchange between the second phase change heat exchanger (8) and the air conditioning side pipe (32).

7. The heat pump system according to claim 6, characterized in that, The heat pump system includes a housing (10) for placement on the outdoor side, and an electrical control assembly and a valve assembly disposed within the housing (10); The interior of the housing (10) defines three horizontally arranged mounting areas (102) and a side mounting area (104) located on the longitudinal side of at least one of the three horizontal mounting areas (102). The outdoor heat exchanger (2) is installed in one of the three horizontal installation areas (102); The compressor (1), the valve assembly and the electrical control assembly are arranged in the same installation area to form a co-location assembly; the co-location assembly, the first phase change heat exchanger (5) and the second phase change heat exchanger (8) are respectively installed in the remaining two horizontal installation areas (102) and the side installation area (104).

8. The heat pump system according to claim 7, characterized in that, The three horizontal installation areas (102) include a second installation area (1022) located in the middle, and a first installation area (1021) and a third installation area (1023) located on both sides of the second installation area (1022) respectively; the side installation areas (104) are all located on the same longitudinal side of the three horizontal installation areas (102); the outdoor heat exchanger (2) is installed in the first installation area (1021), the same-area component is installed in the second installation area (1022), the second phase change heat exchanger (8) is installed in the third installation area (1023), and the first phase change heat exchanger (5) is installed in the side installation area (104); Alternatively, the three horizontal installation areas (102) include a second installation area (1022) located in the middle, and a first installation area (1021) and a third installation area (1023) located on both sides of the second installation area (1022); the side installation areas (104) are all located on the same longitudinal side of the three horizontal installation areas (102); the same-area component is installed in the first installation area (1021), the outdoor heat exchanger (2) is installed in the second installation area (1022), the second phase change heat exchanger (8) is installed in the third installation area (1023), and the first phase change heat exchanger (5) is installed in the side installation area (104); Alternatively, the three horizontal installation areas (102) include a second installation area (1022) located in the middle, and a first installation area (1021) and a third installation area (1023) located on both sides of the second installation area (1022) respectively; the side installation areas (104) are all located on the same longitudinal side of the three horizontal installation areas (102); the outdoor heat exchanger (2) is installed in the first installation area (1021), the second phase change heat exchanger (8) is installed in the second installation area (1022), the same-area component is installed in the third installation area (1023), and the first phase change heat exchanger (5) is installed in the side installation area (104); Alternatively, the three horizontal installation areas (102) include a second installation area (1022) located in the middle, and a first installation area (1021) and a third installation area (1023) located on both sides of the second installation area (1022) respectively; the side installation areas (104) are all located on the same longitudinal side of the three horizontal installation areas (102); the outdoor heat exchanger (2) is installed in the first installation area (1021), one of the first phase change heat exchanger (5) and the second phase change heat exchanger (8) is installed in the second installation area (1022), the other of the first phase change heat exchanger (5) and the second phase change heat exchanger (8) is installed in the third installation area (1023), and the same-area component is installed in the side installation area (104). Alternatively, the three horizontal installation areas (102) include a second installation area (1022) located in the middle, and a first installation area (1021) and a third installation area (1023) located on both sides of the second installation area (1022) respectively; the side installation areas (104) are all located on the same longitudinal side of the three horizontal installation areas (102); one of the first phase change heat exchanger (5) and the second phase change heat exchanger (8) is installed in the first installation area (1021), the outdoor heat exchanger (2) is installed in the second installation area (1022), the other heat exchanger of the first phase change heat exchanger (5) and the second phase change heat exchanger (8) is installed in the third installation area (1023), and the same-area components are installed in the side installation areas (104). Alternatively, the three horizontal installation areas (102) include a second installation area (1022) located in the middle, and a first installation area (1021) and a third installation area (1023) located on the horizontal sides of the second installation area (1022); the side installation area (104) and the third installation area (1023) are located on the same horizontal side of the second installation area (1022), and the side installation area (104) is located on the longitudinal side of the third installation area (1023); the same-area component is installed in the first installation area (1021), the outdoor heat exchanger (2) is installed in the second installation area (1022), one of the first phase change heat exchanger (5) and the second phase change heat exchanger (8) is installed in the third installation area (1023), and the other of the first phase change heat exchanger (5) and the second phase change heat exchanger (8) is installed in the side installation area (104).

9. The heat pump system according to claim 6, characterized in that, The heat pump system has at least one of the following operating modes: hot water mode, heating mode, and cooling mode; The hot water operating conditions include a hot water storage mode and a hot water supply mode. In the hot water storage mode, the first phase heat exchanger (5) absorbs and stores the heat of the refrigerant in the refrigerant pipeline. In the hot water supply mode, the first phase heat exchanger (5) exchanges the heat stored in it with the domestic water circuit (4) so ​​that the domestic water circuit (4) outputs hot water. The heating conditions include a heating energy storage mode and a heating mode; in the heating energy storage mode, the second phase heat exchanger (8) absorbs and stores the heat from the refrigerant in the refrigerant pipeline; in the heating mode, the second phase heat exchanger (8) exchanges the stored heat with the air conditioning side pipeline (32) to achieve heating. The cooling operation includes a cold energy storage mode and a cooling mode. In the cold energy storage mode, the second phase changer (8) absorbs and stores the cold energy of the refrigerant after it has been regulated by at least one of the outdoor heat exchanger (2) and the first phase changer (5). In the cooling mode, the second phase changer (8) exchanges the cold energy it stores with the air conditioning side pipe (32) to achieve cooling.

10. An integrated system for power supply coupled with a heat pump, characterized in that, Includes a heat pump system as described in any one of claims 1-9, and an energy supply system connected to said heat pump system; The power supply system includes a mains interface module and / or a renewable energy generation module.

11. The integrated system for power supply coupled with a heat pump according to claim 10, characterized in that, The integrated system also includes a control system configured to: When the preset energy storage conditions are met, the renewable energy power generation module or the mains interface module is controlled to supply power to the heat pump system, so that the phase change heat exchanger performs energy storage work. When the preset energy release conditions are met, the phase change heat exchanger is controlled to perform heat exchange operations.

12. A control method for an integrated system of a power-coupled heat pump as described in claim 10 or 11, characterized in that, The control method includes: When the output power of the renewable energy power generation module is greater than or equal to the preset value, the renewable energy power generation module is used to supply power to drive the heat pump system and thus complete the energy storage work of the phase change heat exchanger. And / or, when the mains power is in off-peak hours, the heat pump main unit system is driven by off-peak electricity to complete the energy storage work of the phase change heat exchanger; And / or, when the mains power is at its peak, the phase change heat exchanger releases cooling or heating energy to regulate the ambient temperature or supply domestic hot water.