Outdoor host

Abstract

The utility model discloses an outdoor host which comprises a shell, and the interior of the shell is used for containing a compressor, an outdoor side heat exchanger, a throttling module, an air conditioner side heat exchanger, an air conditioner side water pump, a pressure buffer, a water storage tank, a heat recovery heat exchanger and a heat recovery heat exchanger water pump. The compressor is connected with at least two of the outdoor side heat exchanger, the air conditioner side heat exchanger and the heat recovery heat exchanger through pipelines. The throttling module is connected with at least two of the outdoor side heat exchanger, the air conditioner side heat exchanger and the heat recovery heat exchanger through pipelines. The air-conditioning side water pump is connected with the air-conditioning side heat exchanger, and the pressure buffer is connected with the air-conditioning side heat exchanger. The water storage tank is connected with the heat recovery heat exchanger, and the heat recovery heat exchanger water pump is connected with the heat recovery heat exchanger. According to the utility model, the outdoor host has the function of a hydraulic module, the parts of the hydraulic module are simplified, the integration level of the product is improved, the complexity of mounting a plurality of parts in the engineering mounting process is reduced, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to an outdoor main unit. Background Art

[0002] The existing dual or trigeneration heat pump system usually has hydraulic modules and buffer water tanks and other components installed outside the main unit. However, there are certain requirements for the floor space occupied by the components. For example, additional space is required to install buffer water tanks and hydraulic modules and other components. The installation process is complicated, which is not conducive to the promotion of dual or trigeneration systems. Utility Model Content

[0003] Based on this, it is necessary to provide an outdoor host to address the above technical issues.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct an outdoor host, including:

[0005] A housing, wherein the interior of the housing is used to accommodate a compressor, an outdoor heat exchanger, a throttling module, an air-conditioning side heat exchanger, an air-conditioning side water pump, a pressure buffer, a water storage tank, a heat recovery heat exchanger, and a heat recovery heat exchanger water pump;

[0006] Wherein, the compressor is used to provide refrigerant, and the compressor is connected to at least two of the outdoor heat exchanger, the air conditioning side heat exchanger and the heat recovery heat exchanger through pipelines;

[0007] The throttling module is used to realize throttling expansion of the refrigerant, and the throttling module is connected to at least two of the outdoor heat exchanger, the air conditioning side heat exchanger and the heat recovery heat exchanger through a pipeline;

[0008] The outdoor heat exchanger is used to realize heat exchange between the refrigerant and the outside air;

[0009] The air-conditioning side heat exchanger is used to realize heat exchange between the refrigerant and the water in the external terminal equipment;

[0010] The air-conditioning side water pump is connected to the air-conditioning side heat exchanger, and the air-conditioning side water pump is used to provide power for water circulation between the air-conditioning side heat exchanger and the external terminal device;

[0011] The pressure buffer is connected to the air conditioner side heat exchanger, and the pressure buffer is used to adjust the water pressure between the air conditioner side heat exchanger and the external terminal device;

[0012] The water storage tank is connected to the heat recovery heat exchanger, the heat recovery heat exchanger is used to prepare domestic water by heat exchange between a refrigerant and water in the water storage tank, and the water storage tank is used to store domestic water;

[0013] The heat recovery heat exchanger water pump is connected to the heat recovery heat exchanger, and the heat recovery heat exchanger water pump is used to provide power for water circulation between the heat recovery heat exchanger and the water storage tank.

[0014] In one of the embodiments, the water storage tank and the outdoor heat exchanger are installed on both sides of the inner length direction of the shell, and the water storage tank is vertically arranged.

[0015] In one of the embodiments, the heat recovery heat exchanger is installed below the corresponding water storage tank.

[0016] In one of the embodiments, the heat recovery heat exchanger water pump is installed below the corresponding water storage tank.

[0017] In one embodiment, the housing includes a chassis;

[0018] The outdoor host also includes:

[0019] A water tank bracket, wherein the water tank bracket is fixed on the chassis, the water tank is installed on the water tank bracket to form a containing space between the bottom of the water tank and the chassis, and the heat recovery heat exchanger and the heat recovery heat exchanger water pump are located in the containing space.

[0020] In one embodiment, the housing includes a chassis;

[0021] The outdoor host also includes:

[0022] A first water pump bracket, through which the heat recovery heat exchanger water pump is installed inside the shell.

[0023] In one embodiment, the housing includes a chassis, and the heat recovery heat exchanger is a shell and tube heat exchanger;

[0024] The outdoor host also includes:

[0025] A first heat exchanger bracket is fixed on the chassis, the shell and tube heat exchanger is installed on the first heat exchanger bracket, and the shell and tube heat exchanger is wound around the periphery of the heat recovery heat exchanger water pump.

[0026] In one of the embodiments, the compressor, the throttling module, the air-conditioning side heat exchanger, the air-conditioning side water pump and the pressure buffer are installed below the outdoor side heat exchanger.

[0027] In one of the embodiments, the air conditioner side water pump and the pressure buffer are stacked in the height direction of the interior of the shell, and the air conditioner side water pump and the pressure buffer are located at one end of the interior of the shell in the width direction.

[0028] In one embodiment, the outdoor heat exchanger includes a first refrigerant port and a second refrigerant port connected to the first refrigerant port;

[0029] The heat recovery heat exchanger comprises a refrigerant inlet, a refrigerant outlet connected to the refrigerant inlet, a first water inlet and a first water outlet connected to the first water inlet;

[0030] The air conditioning side heat exchanger comprises a third refrigerant port, a fourth refrigerant port connected to the third refrigerant port, a second water inlet and a second water outlet connected to the second water inlet;

[0031] Wherein, at least one of the refrigerant inlet, the first refrigerant port and the fourth refrigerant port is connected to the outlet of the compressor through a pipeline;

[0032] The refrigerant outlet is connected to at least one of the throttling module, the first refrigerant port and the fourth refrigerant port through a pipeline;

[0033] The second refrigerant port is connected to the third refrigerant port through the throttling module;

[0034] The inlet of the compressor is connected to the first refrigerant port and / or the fourth refrigerant port through a pipeline;

[0035] The water storage tank is connected to the first water inlet and the first water outlet respectively;

[0036] The heat recovery heat exchanger water pump is arranged at the first water inlet end or the first water outlet end;

[0037] The air conditioning side water pump is arranged at the second water inlet end or the second water outlet end;

[0038] The pressure buffer is arranged at the second water inlet end or the second water outlet end.

[0039] By implementing the utility model, the following beneficial effects are achieved:

[0040] The utility model integrates the air-conditioning side water pump and the pressure buffer in the hydraulic module of the traditional trigeneration equipment into the outdoor main unit, so that the outdoor main unit has the function of the hydraulic module, simplifies the hydraulic module components, and thus can simplify the number of components, which is conducive to the miniaturized design of the equipment.

[0041] At the same time, the compressor, the outdoor heat exchanger, the throttling module, the air-conditioning side heat exchanger, the water storage tank, the heat recovery heat exchanger and the heat recovery heat exchanger water pump are all integrated into the outdoor main unit, which can complete heating, cooling and preparation of domestic hot water without additional matching components such as hydraulic modules and domestic hot water modules, thereby improving the integration of the product, reducing the complexity of installing multiple components during the engineering installation process, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0043] Figure 1 It is a schematic diagram of the overall structure of the outdoor host of the utility model;

[0044] Figure 2 It is a schematic diagram of the positions of the first cavity and the second cavity inside the shell of the outdoor host of the utility model, wherein the dotted line is a virtual boundary, and the first space, the second space and the water tank space are connected;

[0045] Figure 3 It is a front view schematic diagram of the structure of the outdoor host of the utility model;

[0046] Figure 4 It is a back schematic diagram of the structure of the outdoor host of the utility model;

[0047] Figure 5 It is a schematic diagram of the heat pump system of the utility model;

[0048] Figure 6 It is a schematic diagram of the refrigerant flow direction of the heat pump system of the utility model in which hot water is prepared through a full heat recovery mode while refrigerating;

[0049] Figure 7 It is a schematic diagram of the flow direction of the first refrigerant in the heat pump system of the utility model for preparing hot water through the waste heat recovery mode while cooling;

[0050] Figure 8 It is a schematic diagram of the flow direction of the second refrigerant in the heat pump system of the utility model for preparing hot water through the waste heat recovery mode while cooling;

[0051] Fig. 9 This is a schematic diagram of the flow direction of the first refrigerant in the heat pump system of the utility model when preparing hot water while heating;

[0052] Fig.10 It is a schematic diagram of the flow direction of the second refrigerant in the heat pump system of the utility model for preparing hot water while heating;

[0053] Fig.11It is a schematic diagram of the refrigerant flow direction of the heat pump system of the utility model when preparing hot water purely;

[0054] Fig.12 It is a schematic diagram of the refrigerant flow direction of the heat pump system of the utility model in the cooling mode;

[0055] Fig.13 It is a schematic diagram of the refrigerant flow direction of the heat pump system of the utility model in the heating mode. DETAILED DESCRIPTION

[0056] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0057] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0058] In the description of the utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more.

[0059] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "located at", and "located at" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a chemical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0060] It should be noted that the height direction Z of the housing 10 is the vertical direction, and the length direction Y of the housing 10 is the horizontal direction, also called the lateral direction.

[0061] like Figures 1 to 4As shown, an embodiment of the utility model discloses an outdoor host, including a housing 10, wherein the housing 10 is used to accommodate a water storage tank 11, an outdoor heat exchanger 12, a heat recovery heat exchanger 13, an air conditioning side heat exchanger 14, an air conditioning side water pump 15, a pressure buffer 16, a compressor 17, a heat recovery heat exchanger water pump 18 and a throttling module, as follows:

[0062] The compressor 17 is used to provide refrigerant. The compressor 17 is connected to at least two of the outdoor heat exchanger 12, the air-conditioning side heat exchanger 14 and the heat recovery heat exchanger 13 through pipelines, and the connection modes can be seen as follows.

[0063] The throttling module is used to achieve throttling expansion of the refrigerant. The throttling module is connected to at least two of the outdoor heat exchanger 12, the air-conditioning side heat exchanger 14 and the heat recovery heat exchanger 13 through pipelines, and the connection modes can be seen as follows.

[0064] The outdoor side heat exchanger 12 is used to achieve heat exchange between the refrigerant and the outside air, and the air conditioning side heat exchanger 14 is used to achieve heat exchange between the refrigerant and water in the external terminal device 35.

[0065] The air conditioning side water pump 15 is connected to the air conditioning side heat exchanger 14 , and is used to provide power for the water circulation between the air conditioning side heat exchanger 14 and the external terminal device. The air conditioning side water pump 15 is arranged in the water inlet pipe or the water outlet pipe of the air conditioning side heat exchanger 14 .

[0066] The pressure buffer 16 is connected to the air-conditioning side heat exchanger 14 , and is used to adjust the water pressure between the air-conditioning side heat exchanger 14 and the external terminal device 35 . The pressure buffer 16 is arranged on the water inlet pipe or the water outlet pipe of the air-conditioning side heat exchanger 14 .

[0067] The water storage tank 11 is connected to the heat recovery heat exchanger 13. The heat recovery heat exchanger 13 is used to prepare domestic water by exchanging heat between a refrigerant and the water in the water storage tank 11. The water storage tank 11 is used to store domestic water.

[0068] The heat recovery heat exchanger water pump 18 is connected to the heat recovery heat exchanger 13 , and is used to provide power for the water circulation between the heat recovery heat exchanger 13 and the water storage tank. The heat recovery heat exchanger water pump 18 is arranged in the water inlet pipe or the water outlet pipe of the heat recovery heat exchanger 13 .

[0069] In this embodiment, the air-conditioning side water pump 15 and the pressure buffer 16 in the hydraulic module of the traditional trigeneration equipment are integrated into the outdoor main unit, so that the outdoor main unit has the function of the hydraulic module, simplifies the hydraulic module components, and thus can simplify the number of components, which is conducive to the miniaturized design of the equipment.

[0070] At the same time, the water storage tank 11, the outdoor heat exchanger 12, the heat recovery heat exchanger 13, the air-conditioning side heat exchanger 14, the compressor 17, the heat recovery heat exchanger water pump 18 and the throttling module are all integrated into the outdoor main unit, which can complete heating, cooling and preparation of domestic hot water without additional matching components such as hydraulic modules and domestic hot water modules, thereby improving the integration of the product, reducing the complexity of installing multiple components during the engineering installation process, and improving the user experience.

[0071] In some embodiments, Figure 3 As shown, the water storage tank 11 and the outdoor heat exchanger 12 are installed on both sides of the inner length direction Y of the shell 10, and the water storage tank 11 is vertically arranged.

[0072] In this embodiment, since the water storage tank 11 and the outdoor heat exchanger 12 are installed on both sides of the inner length direction Y of the housing 10, the water tank side does not need air intake and can be installed against a wall to be applied to installation spaces with poor ventilation environments. The gaps left at both ends during the original installation are changed to gaps left on one side, which has wide adaptability to the installation space and can save installation space. At the same time, since the outdoor heat exchanger 12 is set separately, it can also ensure that there is sufficient ventilation on the heat exchanger side to ensure heat exchange efficiency, and avoid the heat exchange efficiency of the outdoor heat exchanger 12 from decreasing due to insufficient ventilation space.

[0073] Since the density of hot water is lower than that of cold water, compared with installing the water tank 11 horizontally, installing the water tank 11 vertically is conducive to allowing the prepared hot water to quickly rise to the top of the water tank 11, so that the hot water outlet 114 at the top can quickly obtain high-temperature hot water, thereby improving the water discharge volume, water discharge rate and hot water supply capacity.

[0074] In some embodiments, the water tank 11 is a metal tank, such as a stainless steel cylindrical tank. The outer wall of the water tank 11 is wrapped with thermal insulation cotton, such as polyurethane foam, to prevent the heat of the prepared hot water from being lost. The stainless steel cylindrical tank, the thermal insulation cotton and the polyurethane foam are only examples and are not intended to limit the present invention.

[0075] In some embodiments, an electric auxiliary heater, such as an electric heating rod, is provided inside the water tank 11. In order to monitor the temperature inside the water tank 11 in real time, a temperature detector, such as a thermometer, is provided inside the water tank 11. The electric heating rod and the thermometer are merely examples and are not intended to limit the present invention.

[0076] In some embodiments, scale is generated after water is heated, and the scale may cause corrosion to the water tank 11. A water softening device and / or an anti-corrosion layer is provided inside the water tank 11. For example, the water softening device is a magnesium rod, and the anti-corrosion layer is a metal coating. After the magnesium rod is placed in the water tank 11, the magnesium rod releases magnesium ions, so that the water alkali and scale in the water tank 11 are reduced, effectively preventing a large amount of scale from being attached to the inner wall of the water tank 11, thereby avoiding corrosion to the water tank 11.

[0077] In some embodiments, a pressure relief device is provided on the top of the water storage tank 11, and the pressure relief device is used to release the pressure inside the water storage tank 11. For example, the pressure relief device is an exhaust valve, and the exhaust valve here is only an example and is not intended to limit the present application.

[0078] In some embodiments, Figure 3 As shown, the heat recovery heat exchanger 13 is installed at the corresponding lower part of the water storage tank 11, which can facilitate the design and arrangement of the pipelines, and is beneficial to reducing the pipelines between the heat recovery heat exchanger 13 and the water storage tank 11, avoiding the loss of heat and pipeline pressure during the hot water transportation process caused by too long pipelines.

[0079] In some embodiments, Figure 3 As shown, the heat recovery heat exchanger water pump 18 is installed at the corresponding lower part of the water storage tank 11.

[0080] In some embodiments, Figure 3 As shown, the air-conditioning side heat exchanger 14 , the air-conditioning side water pump 15 , the pressure buffer 16 , the compressor 17 and the throttling module are installed at the corresponding lower part of the outdoor side heat exchanger 12 .

[0081] In some embodiments, Figure 3 As shown, the outdoor host further includes a water tank bracket 19, and the housing 10 includes a chassis 103, and the chassis 103 is used to be fixed on an external fixture, such as fixed on the ground. The water tank bracket 19 is fixed on the chassis 103, and the water storage tank 11 is installed on the water tank bracket 19 so that a storage space is formed between the bottom of the water storage tank 11 and the chassis 103, and the heat recovery heat exchanger 13 and the heat recovery heat exchanger water pump 18 are located in the storage space.

[0082] In some embodiments, Figure 3 As shown, the outdoor main unit further includes a first heat exchanger bracket 20 , the first heat exchanger bracket 20 is fixed on the chassis 103 , and the heat recovery heat exchanger 13 is installed on the first heat exchanger bracket 20 .

[0083] For example, the heat recovery heat exchanger 13 is a shell-and-tube heat exchanger, and the shell-and-tube heat exchanger is arranged around the periphery of the heat recovery heat exchanger water pump 18 along the height direction Z of the housing 10 to fully utilize the peripheral space of the heat recovery heat exchanger water pump 18. The pipes inside the shell-and-tube heat exchanger can carry two heat exchange media, refrigerant and water, which are separated by copper pipes and heat exchanged, thereby providing hot water for the water storage tank 11. The shell-and-tube heat exchanger here is only an example and is not intended to limit the present application.

[0084] In some embodiments, the outdoor main unit further includes a first water pump bracket (not shown), and the heat recovery heat exchanger water pump 18 is installed inside the housing 10 through the first water pump bracket, specifically below the corresponding water tank 11. For example, the first water pump bracket can be a hard pipe at the inlet and outlet ends of the heat recovery heat exchanger water pump 18, and the hard pipe plays a supporting role. The first water pump bracket can also be fixed to a bracket on the chassis 103, and the heat recovery heat exchanger water pump 18 is installed on the first water pump bracket.

[0085] In some embodiments, the water storage tank 11 includes a water outlet 112 and a return water port 113, the heat recovery heat exchanger 13 includes a first water inlet 133 and a first water outlet 134 connected to the first water inlet 133, the water outlet 112 is connected to the first water inlet 133, the first water outlet 134 is connected to the return water port 113, the heat recovery heat exchanger water pump 18 is arranged on the pipeline connecting the water outlet 112 and the first water inlet 133, or the heat recovery heat exchanger water pump 18 is arranged on the pipeline connecting the first water outlet 134 and the return water port 113.

[0086] In some embodiments, in order to reduce the number of pipelines between the heat recovery heat exchanger 13 and the water tank 11 , the water outlet 112 is located at the bottom of the water tank 11 , and the water return port 113 is located in the middle of the water tank 11 .

[0087] In some embodiments, there is a space between the water storage tank 11 and the corner inside the housing 10, and the pipeline connecting the first water outlet 134 to the water return port 113 is located in the space to fully utilize the space in the corner. For example, the water storage tank 11 is cylindrical, and the cylindrical shape here is only an example and is not intended to limit the present application.

[0088] In some embodiments, Figure 2 and Figure 3 As shown, the outdoor heat exchanger 12 and the water storage tank 11 are arranged in a stepped manner inside the housing 10. Figure 2 As shown, a first space 1021 and a second space 1022 of different vertical lengths are formed in the lower area inside the shell 10, the first space 1021 is located below the outdoor heat exchanger 12, the second space 1022 is located below the water tank 11, and the vertical length of the first space 1021 is greater than the vertical length of the second space 1022.

[0089] In this embodiment, system components with different height requirements can be placed in the first space 1021 and the second space 1022, so that the internal space layout of the outdoor host is reasonable, which solves the problem of insufficient internal space of the outdoor host when the water tank 11 is built into the outdoor host, improves space utilization, and achieves miniaturization.

[0090] Specifically, Figure 3 As shown, the height of the water tank 11 is greater than the height of the outdoor heat exchanger 12, and the lowest point of the water tank 11 is lower than the lowest point of the outdoor heat exchanger 12, thereby making full use of the internal space of the outdoor host to increase the height of the water tank 11 and improve the water volume.

[0091] In some embodiments, the water tank 11 extends to the second space 1022 and is fixedly connected to the bottom plate 103 .

[0092] In some embodiments, Figure 2 As shown, a first cavity 101 and a second cavity 102 are formed inside the housing 10. The outdoor heat exchanger 12 is located in the first cavity 101, and the water storage tank 11, the heat recovery heat exchanger 13, the air conditioning side heat exchanger 14, the air conditioning side water pump 15, the pressure buffer 16, the compressor 17, the heat recovery heat exchanger water pump 18 and the throttling module are located in the second cavity 102. For example, the first cavity 101 is rectangular, and the second cavity 102 is "L" shaped. The rectangle and the "L" shape here are only examples and are not intended to limit the present application.

[0093] The first space 1021 , the second space 1022 and the water tank space 1023 on the side where the water tank 11 is located constitute the second cavity 102 .

[0094] Specifically, Figure 3 As shown, the outdoor main unit further includes a partition 21 , which is disposed between the outdoor heat exchanger 12 and the water storage tank 11 along a height direction Z of the housing 10 and is connected to the housing 10 .

[0095] The outdoor main unit further includes a water receiving pan 22 for collecting condensed water, the water receiving pan 22 is arranged at the bottom of the outdoor heat exchanger 12 along the length direction Y of the housing 10, and is connected to the partition 21 and the housing 10. The first cavity 101 and the second cavity 102 are defined by the partition 21, the water receiving pan 22 and the housing 10.

[0096] In some embodiments, the outdoor main unit further includes a compressor bracket (not shown), the compressor bracket is fixed on the chassis 103, and the compressor 17 is installed (eg, vertically installed) on the compressor bracket.

[0097] In some embodiments, Figure 3 As shown, the outdoor main unit further includes a fan 23, which is used to drive the external air to exchange heat with the outdoor heat exchanger 12. The fan 23 is installed on one side of the interior of the housing 10, that is, on the same side as the outdoor heat exchanger 12, and is located in the first cavity 101. For example, the outdoor heat exchanger 12 is a finned heat exchanger, which is only an example and is not intended to limit the present application.

[0098] Accordingly, if Figure 1 and Figure 4 As shown, the first side of the housing 10 corresponding to the fan 23 is provided with an air inlet 104, and the second side is provided with an air outlet 105. For example, the side of the housing 10 is provided with the air inlet 104, and the front is provided with the air outlet 105. The side and the front here are only examples and are not intended to limit the present application. It can be any two of the front, the side and the back.

[0099] In some embodiments, Figure 3 As shown, the water receiving tray 22 is provided with a heat dissipation hole 221, and the heat dissipation hole 221 connects the first cavity 101 and the second cavity 102. When the fan 23 is started, the first cavity 101 is negative pressure, and the hot air generated by the components in the second cavity 102 can be discharged to the outside.

[0100] In some embodiments, Figure 3 As shown, the outdoor main unit further includes a second heat exchanger bracket 24, the second heat exchanger bracket 24 is fixed on the chassis 103, the air-conditioning side heat exchanger 14 is installed on the second heat exchanger bracket 24, and the air-conditioning side heat exchanger 14 is vertically arranged.

[0101] For example, the air-conditioning side heat exchanger 14 is a plate heat exchanger, the air-conditioning side water pump 15 is arranged on the water inlet pipe or the water outlet pipe of the air-conditioning side heat exchanger 14, and the external terminal device 35 may include an air disk and / or floor heating installed indoors. The plate heat exchanger, the air disk and the floor heating here are only examples and are not intended to limit the present application.

[0102] In some embodiments, the outdoor main unit further includes a second water pump bracket (not shown), and the air-conditioning side water pump 15 is installed inside the housing 10 through the second water pump bracket, specifically below the outdoor side heat exchanger 12. For example, the second water pump bracket can be a hard pipe at the inlet and outlet ends of the air-conditioning side water pump 15, and the hard pipe plays a supporting role. The second water pump bracket can also be fixed to a bracket on the chassis 103, and the air-conditioning side water pump 15 is installed on the second water pump bracket.

[0103] In some embodiments, Figure 4 As shown, the air-conditioning side water pump 15 and the pressure buffer 16 are stacked in the height direction Z of the housing 10, and the air-conditioning side water pump 15 and the pressure buffer 16 are located at one end of the inner width direction X of the housing 10, and the air-conditioning side heat exchanger 14 is located at the other end of the inner width direction X of the housing 10. For example, the pressure buffer 16 is an expansion tank, which is installed (for example, horizontally installed) on the chassis 103, and the air-conditioning side water pump 15 is located above the pressure buffer 16. It should be noted that the horizontal installation is to extend along the length and width plane of the housing 10, and the expansion tank here is only an example and is not intended to limit the present application.

[0104] In some embodiments, Figure 4 As shown, the outdoor host further includes a first reversing valve 25, which is used to switch between the cooling mode and the heating mode. The first reversing valve 25 is connected to the outdoor heat exchanger 12, the air conditioning side heat exchanger 14 and the compressor, or the first reversing valve 25 is connected to the outdoor heat exchanger 12, the air conditioning side heat exchanger 14, the heat recovery heat exchanger 13 and the compressor. The first reversing valve 25 is installed inside the housing 10 and is located below the outdoor heat exchanger 12, that is, located in the second cavity 102. For example, the first reversing valve 25 is a four-way valve, which is only an example and is not intended to limit the present application.

[0105] In some embodiments, Figure 4As shown, the throttling module includes a first throttling device 27 and a second throttling device 29, and the second end of the first throttling device 27 is connected to the first end of the second throttling device 29, that is, the first throttling device 27 and the second throttling device 29 are connected in series.

[0106] Wherein, the first end of the first throttling device 27 is connected to the air-conditioning side heat exchanger 14, and the second end of the second throttling device 29 is connected to the outdoor side heat exchanger 12. Alternatively, the first end of the first throttling device 27 is connected to the air-conditioning side heat exchanger 14, and the heat recovery heat exchanger 13 is connected to the pipeline between the second end of the first throttling device 27 and the first end of the second throttling device 29. Alternatively, the second end of the second throttling device 29 is connected to the outdoor side heat exchanger 12, and the heat recovery heat exchanger 13 is connected to the pipeline between the second end of the first throttling device 27 and the first end of the second throttling device 29. Alternatively, the first end of the first throttling device 27 is connected to the air-conditioning side heat exchanger 14, the second end of the second throttling device 29 is connected to the outdoor side heat exchanger 12, and the heat recovery heat exchanger 13 is connected to the pipeline between the second end of the first throttling device 27 and the first end of the second throttling device 29.

[0107] In some embodiments, the throttling module further includes a first one-way valve 26 and a second one-way valve 28. The inlet of the first one-way valve 26 is connected to the second end of the second throttling device 29, and the outlet of the first one-way valve 26 is connected to the first end of the second throttling device 29, that is, the first one-way valve 26 is connected in parallel with the second throttling device 29. The inlet of the second one-way valve 28 is connected to the first end of the first throttling device 27, and the outlet of the second one-way valve 28 is connected to the second end of the first throttling device 27, that is, the second one-way valve 28 is connected in parallel with the first throttling device 27. The first one-way valve 26 and the first throttling device 27 are used for throttling and cooling in the cooling mode, and the second one-way valve 28 and the second throttling device 29 are used for throttling and cooling in the heating mode.

[0108] For example, the first throttling device 27 and the second throttling device 29 are electronic expansion valves or thermal expansion valves. The electronic expansion valves and thermal expansion valves mentioned here are only examples and are not intended to limit the present application.

[0109] In some embodiments, Figure 3 As shown, the outdoor host further includes a liquid storage container 30, the liquid storage container 30 is used to store liquid refrigerant, and the liquid storage container 30 is installed inside the housing 10 and is located below the outdoor heat exchanger 12, that is, located in the second cavity 102. Specifically, the liquid storage container 30 is installed (e.g., vertically installed) on the chassis 103.

[0110] In some embodiments, Figure 3 As shown, the outdoor main unit also includes a second reversing valve 31, which is used to regulate the amount of refrigerant entering the heat recovery heat exchanger 13 after the refrigerant comes out of the compressor 17. The second reversing valve 31 is connected to the compressor 17 and the heat recovery heat exchanger 13, and the second reversing valve 31 is connected to the outdoor heat exchanger 12 and / or the air-conditioning side heat exchanger 14. The second reversing valve 31 is installed inside the casing 10 and is located below the outdoor heat exchanger 12, that is, located in the second cavity 102.

[0111] The outdoor main unit also includes a third reversing valve 32, which is used to switch all or at least part of the heat of the refrigerant for heat exchange in the heat recovery heat exchanger 13. The third reversing valve 32 is connected to the heat recovery heat exchanger 13, and the third reversing valve 32 is connected to the outdoor side heat exchanger 12 and / or the air conditioning side heat exchanger 14. The third reversing valve 32 is installed inside the shell 10 and is located below the outdoor side heat exchanger 12, that is, located in the second cavity 102.

[0112] For example, the second reversing valve 31 and the third reversing valve 32 are three-way valves, and the three-way valves here are only examples and are not intended to limit the present application.

[0113] In some embodiments, Figure 3 As shown, the outdoor host further includes a gas-liquid separator 33, which is used to separate gaseous refrigerant and liquid refrigerant, and is disposed at the inlet 171 end of the compressor 17. The gas-liquid separator 33 is installed inside the housing 10 and is located below the outdoor heat exchanger 12, that is, in the second cavity 102. Specifically, the gas-liquid separator 33 is installed (e.g., vertically installed) on the chassis 103.

[0114] In some embodiments, Figure 3 As shown, the outdoor host further includes an electric control box 34, which is used to control various electric control components in the housing 10, such as the compressor 17, the heat recovery heat exchanger water pump 18, the fan 23, the air conditioning side water pump 15, the first reversing valve 25, the first throttling device 27, the second throttling device 29, the second reversing valve 31 and the third reversing valve 32. The electric control box 34 is installed inside the housing 10 and is located below the outdoor heat exchanger 12, that is, in the second cavity 102. Specifically, the electric control box 34 is installed (e.g., vertically installed) on the chassis 103.

[0115] Furthermore, the main control board of the control box 34 is provided with a heat sink 341, and the heat sink 341 corresponds to the heat dissipation hole 221. For example, the heat sink 341 is a heat dissipation fin, which is only an example and is not intended to limit the present application.

[0116] In some embodiments, Figure 3 and Figure 4 As shown, the main vibrating parts including the heat recovery heat exchanger 13, the heat recovery heat exchanger water pump 18, the air-conditioning side heat exchanger 14, the air-conditioning side water pump 15, the liquid storage container 30, the compressor 17, the gas-liquid separator 33, the electric control box 34 and the pressure buffer 16 are fixed on the chassis 103, so that the outdoor main unit has a low center of gravity and balanced weight, thereby improving the stability of the unit and reducing vibration and noise.

[0117] Through the above structural layout, the heat recovery heat exchanger 13, the heat recovery heat exchanger water pump 18, the air conditioning side heat exchanger 14, the air conditioning side water pump 15, the first reversing valve 25, the first one-way valve 26, the first throttling device 27, the second one-way valve 28, the second throttling device 29, the liquid storage container 30, the compressor 17, the second reversing valve 31, the third reversing valve 32, the gas-liquid separator 33, the electric control box 34 and the pressure buffer 16 are located between the water storage tank 11 and the room The space below the outside heat exchanger 12 does not occupy the space of the outdoor heat exchanger 12 or the space of the water tank 11. The space layout is reasonable and will not affect the air volume and heat exchange efficiency of the outdoor heat exchanger 12, thereby improving space utilization and the integration of the outdoor host. The product is miniaturized and can complete heating, cooling and preparation of domestic hot water without the need for additional matching components such as hydraulic modules and domestic hot water modules, thereby reducing the complexity of installing multiple components during the engineering installation process and improving user experience.

[0118] like Figure 5As shown, the water storage tank 11 includes a cold water inlet 111, a water outlet 112, a return water port 113 and a hot water outlet 114; the heat recovery heat exchanger 13 includes a refrigerant inlet 131, a refrigerant outlet 132 connected to the refrigerant inlet 131, a first water inlet 133 and a first water outlet 134 connected to the first water inlet 133; the outdoor heat exchanger 12 includes a first refrigerant port 121 and a second refrigerant port 122 connected to the first refrigerant port 121; the air conditioning side heat exchanger 14 includes a third refrigerant port 141, a fourth refrigerant port 142 connected to the third refrigerant port 141, and a fourth refrigerant port 143 connected to the third refrigerant port 144. Port 142, a second water inlet 143 and a second water outlet 144 connected to the second water inlet 143; the first reversing valve 25 includes a first valve port 251, a second valve port 252, a third valve port 253 and a fourth valve port 254; the liquid storage container 30 includes a first interface 301, a second interface 302 and a third interface 303; the compressor 17 includes an inlet 171 and an outlet 172; the second reversing valve 31 includes a fifth valve port 311, a sixth valve port 312 and a seventh valve port 313; the third reversing valve 32 includes an eighth valve port 321, a ninth valve port 322 and a tenth valve port 323.

[0119] In some embodiments, at least one of the refrigerant inlet 131 , the first refrigerant port 121 , and the fourth refrigerant port 142 is connected to the outlet 172 of the compressor 17 via a pipeline, and the connection modes can be seen as follows.

[0120] The refrigerant outlet 132 is connected to at least one of the throttling module, the first refrigerant port 121 and the fourth refrigerant port 142 through a pipeline, and the connection modes can be seen as follows.

[0121] The second refrigerant port 122 is connected to the third refrigerant port 141 through the throttling module, and the connection can be seen in the following various modes.

[0122] The first refrigerant port 121 and / or the fourth refrigerant port 142 are connected to the inlet 171 of the compressor 17 through a pipeline, and the connection modes can be seen as follows.

[0123] The water storage tank 11 is respectively connected to the first water inlet 133 and the first water outlet 134, the heat recovery heat exchanger water pump 18 is arranged at the first water inlet end 133 or the first water outlet end 134, the air conditioning side water pump 15 is arranged at the second water inlet 143 end or the second water outlet 144 end, and the pressure buffer 16 is arranged at the second water inlet 143 end or the second water outlet 144 end.

[0124] In some embodiments, Figure 5As shown, the connection relationship between the above-mentioned components is as follows: the outlet 172 of the compressor 17 is connected to the fifth valve port 311 of the second reversing valve 31, the sixth valve port 312 of the second reversing valve 31 is connected to the refrigerant inlet 131 of the heat recovery heat exchanger 13, and the seventh valve port 313 of the second reversing valve 31 is connected to the first valve port 251 of the first reversing valve 25; the refrigerant outlet 132 of the heat recovery heat exchanger 13 is connected to the eighth valve port 321 of the third reversing valve 32, and the ninth valve port 322 of the third reversing valve 32 is connected to the first valve port 251 of the first reversing valve 25 The tenth valve port 323 of the third reversing valve 32 is connected to the first interface 301 of the liquid storage container 30; the water outlet 112 of the water storage tank 11 is connected to the first water inlet 133 of the heat recovery heat exchanger 13 through the heat recovery heat exchanger water pump 18, and the first water outlet 134 of the heat recovery heat exchanger 13 is connected to the return water port 113 of the water storage tank 11; the second valve port 252 of the first reversing valve 25 is connected to the first refrigerant port 121 of the outdoor heat exchanger 12; the second refrigerant port 122 of the outdoor heat exchanger 12 is connected to the liquid storage container through the first one-way valve 26. The second refrigerant port 122 of the outdoor heat exchanger 12 is connected to the second interface 302 of the liquid storage container 30, the conducting direction of the first one-way valve 26 is toward the second interface 302 end of the liquid storage container 30, the second refrigerant port 122 of the outdoor heat exchanger 12 is connected to the second interface 302 of the liquid storage container 30 through the second throttling device 29; the third refrigerant port 141 of the air-conditioning side heat exchanger 14 is connected to the third interface 303 of the liquid storage container 30 through the first throttling device 27, and the third refrigerant port 141 of the air-conditioning side heat exchanger 14 is connected to the third interface 303 of the liquid storage container 30 through the second one-way valve 28. 3, the conduction direction of the second one-way valve 28 is toward the third interface 303 end of the liquid storage container 30; the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14 is connected to the fourth valve port 254 of the first reversing valve 25, and the third valve port 253 of the first reversing valve 25 is connected to the inlet 171 of the compressor 17 through the gas-liquid separator 33; the outlet of the external terminal device 35 is connected to the second water inlet 143 of the air-conditioning side heat exchanger 14 through the air-conditioning side water pump 15, and the second water outlet 144 of the air-conditioning side heat exchanger 14 is connected to the inlet of the external terminal device 35. It should be noted here that the directions of the first one-way valve 26 and the second one-way valve 28 refer to the flow direction of the refrigerant, not the direction of the spatial position.

[0125] It should also be noted that, except for the connection between the inlet and outlet, which has a refrigerant flow direction relationship, the connection between other interfaces, between interfaces and components, or between components is only a physical structure connection, and does not uniquely limit the connectivity and refrigerant flow direction therein. In addition, the connection through the pipeline can be a direct connection or a connection through other components in the middle.

[0126] A heat pump is a device that utilizes the principle of heat transfer to transfer heat energy from a low-temperature heat source to heat energy from a high-temperature heat source. An embodiment of the utility model discloses a heat pump system, comprising the outdoor host and the terminal device 35 described in the above embodiment, wherein the outdoor host is not described in detail here.

[0127] In full, different connections will be generated in different situations, as follows:

[0128] like Figure 6As shown, when full heat recovery is performed to produce domestic hot water in the cooling mode, the fifth valve port 311 of the second reversing valve 31 is connected to the sixth valve port 312, the eighth valve port 321 of the third reversing valve 32 is connected to the tenth valve port 323, the fourth valve port 254 of the first reversing valve 25 is connected to the third valve port 253, the first throttling device 27 is opened, and the second throttling device 29 is closed. That is, when hot water needs to be prepared quickly in the cooling mode, the high-temperature gaseous refrigerant output from the outlet 172 of the compressor 17 first passes through the fifth valve port 311 and the sixth valve port 312 of the second reversing valve 31 and then enters the refrigerant inlet 131 of the heat recovery heat exchanger 13. The high-temperature gaseous refrigerant exchanges heat with the water in the water storage tank 11 in the heat recovery heat exchanger 13 and becomes a medium-temperature liquid refrigerant after preparing hot water. The medium-temperature liquid refrigerant output from the refrigerant outlet 132 of the heat recovery heat exchanger 13 passes through the eighth valve port 321 and the tenth valve port 323 of the third reversing valve 32 and then enters the first interface 301 of the liquid storage container 30. The medium-temperature liquid refrigerant output by the interface 303 is throttled and cooled by the first throttling device 27 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the third refrigerant port 141 of the air-conditioning side heat exchanger 14. The low-temperature liquid refrigerant exchanges heat with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14, and the low-temperature liquid refrigerant absorbs the heat of the circulating water and evaporates to become a low-temperature gaseous refrigerant. The low-temperature gaseous refrigerant output by the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14 passes through the fourth valve port 254 and the third valve port 253 of the first reversing valve 25, and then passes through the gas-liquid separator 33 and returns to the inlet 171 of the compressor 17, and circulates back and forth. The heat recovery heat exchanger 13 is connected to the water storage tank 11, so that all the condensation heat originally used for heat exchange with the air by the outdoor heat exchanger 12 can be recovered and utilized during summer cooling, avoiding the waste of all heat in the heat exchange between the outdoor heat exchanger 12 and the air. The recovered heat is exchanged with the water in the water storage tank 11 in the heat recovery heat exchanger 13 to quickly prepare hot water, improve energy utilization, and increase the speed of hot water production.

[0129] like Figure 7As shown, when waste heat recovery is performed to produce domestic hot water in the cooling mode, the fifth valve port 311 of the second reversing valve 31 is connected to the sixth valve port 312, the eighth valve port 321 of the third reversing valve 32 is connected to the ninth valve port 322, the first valve port 251 of the first reversing valve 25 is connected to the second valve port 252, the fourth valve port 254 of the first reversing valve 25 is connected to the third valve port 253, the first throttling device 27 is opened, and the second throttling device 29 is closed. That is, when hot water needs to be prepared in the cooling mode, the high-temperature gaseous refrigerant outputted from the outlet 172 of the compressor 17 first passes through the fifth valve port 311 and the sixth valve port 312 of the second reversing valve 31 and then enters the refrigerant inlet 131 of the heat recovery heat exchanger 13. The high-temperature gaseous refrigerant exchanges heat with the water in the water storage tank 11 in the heat recovery heat exchanger 13 and becomes a medium-temperature gaseous refrigerant after preparing hot water. The medium-temperature gaseous refrigerant outputted from the refrigerant outlet 132 of the heat recovery heat exchanger 13 passes through the eighth valve port 321 and the ninth valve port 322 of the third reversing valve 32 and the first valve port 251 and the second valve port 252 of the first reversing valve 25 and then enters the first refrigerant port 121 of the outdoor heat exchanger 12. The medium-temperature gaseous refrigerant condenses and releases heat in the outdoor heat exchanger 12 and becomes a medium-temperature liquid refrigerant. The medium-temperature liquid refrigerant output from the second refrigerant port 122 passes through the first one-way valve 26 and enters the second interface 302 of the liquid storage container 30. The medium-temperature liquid refrigerant output from the third interface 303 of the liquid storage container 30 is throttled and cooled by the first throttling device 27 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the third refrigerant port 141 of the air-conditioning side heat exchanger 14. The low-temperature liquid refrigerant exchanges heat with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14, and the low-temperature liquid refrigerant absorbs the heat of the circulating water and evaporates to become a low-temperature gaseous refrigerant. The low-temperature gaseous refrigerant output from the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14 passes through the fourth valve port 254 and the third valve port 253 of the first reversing valve 25 and then returns to the inlet 171 of the compressor 17 through the gas-liquid separator 33, and circulates back and forth. The heat recovery heat exchanger 13 is connected to the water storage tank 11, so that at least part of the condensation heat originally used for heat exchange with the air by the outdoor heat exchanger 12 can be recovered and utilized during summer cooling, thereby avoiding the waste of all heat in the heat exchange between the outdoor heat exchanger 12 and the air. The recovered heat is exchanged with the water in the water storage tank 11 in the heat recovery heat exchanger 13 to prepare hot water, thereby improving energy utilization.

[0130] Specifically, Figure 7 and Figure 6 The difference between the shown embodiments is that Figure 7 In order to recycle at least part of the condensation heat originally used for heat exchange with air by the outdoor heat exchanger 12, Figure 6 The purpose is to recover and utilize all the condensation heat originally used by the outdoor heat exchanger 12 for heat exchange with the air.

[0131] like Figure 8As shown, when waste heat recovery is performed to produce domestic hot water in the cooling mode, the fifth valve port 311 of the second reversing valve 31 is respectively connected to the sixth valve port 312 and the seventh valve port 313, the eighth valve port 321 of the third reversing valve 32 is connected to the ninth valve port 322, the first valve port 251 of the first reversing valve 25 is connected to the second valve port 252, the fourth valve port 254 of the first reversing valve 25 is connected to the third valve port 253, the first throttling device 27 is opened, and the second throttling device 29 is closed. That is, when hot water needs to be prepared in the cooling mode, the high-temperature gaseous refrigerant output from the outlet 172 of the compressor 17 enters the refrigerant inlet 131 of the heat recovery heat exchanger 13 after passing through the fifth valve port 311 and the sixth valve port 312 of the second reversing valve 31, and enters the first valve port 251 and the second valve port 252 of the first reversing valve 25 after passing through the fifth valve port 311 and the seventh valve port 313 of the second reversing valve 31. The high-temperature gaseous refrigerant at the refrigerant port 121 is used for heat exchange with the water in the water storage tank 11 in the heat recovery heat exchanger 13, and becomes a medium-temperature gaseous refrigerant after preparing hot water. The medium-temperature gaseous refrigerant outputted from the refrigerant outlet 132 of the heat recovery heat exchanger 13 passes through the eighth valve port 321 and the ninth valve port 322 of the third reversing valve 32 and the first valve port 251 and the second valve port 252 of the first reversing valve 25, and then enters the first refrigerant port 121 of the outdoor heat exchanger 12. The gaseous refrigerant condenses and releases heat in the outdoor heat exchanger 12 to become a medium-temperature liquid refrigerant. The medium-temperature liquid refrigerant output from the second refrigerant port 122 of the outdoor heat exchanger 12 passes through the first one-way valve 26 and enters the second interface 302 of the liquid storage container 30. The medium-temperature liquid refrigerant output from the third interface 303 of the liquid storage container 30 passes through the first throttling device 27 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the third interface 303 of the air conditioning side heat exchanger 14. Refrigerant port 141, low-temperature liquid refrigerant exchanges heat with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14, and the low-temperature liquid refrigerant absorbs the heat of the circulating water and evaporates to become low-temperature gaseous refrigerant. The low-temperature gaseous refrigerant output by the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14 passes through the fourth valve port 254 and the third valve port 253 of the first reversing valve 25 and then returns to the inlet 171 of the compressor 17 through the gas-liquid separator 33, and circulates back and forth. The heat recovery heat exchanger 13 is connected to the water storage tank 11, so that at least part of the condensation heat originally used for heat exchange with air by the outdoor heat exchanger 12 is recovered and utilized during summer cooling, avoiding the waste of all heat in the heat exchange between the outdoor heat exchanger 12 and the air. The recovered heat is exchanged with the water in the water storage tank 11 in the heat recovery heat exchanger 13 to prepare hot water, thereby improving energy utilization.

[0132] Specifically, Figure 8 and Figure 7 The difference between the shown embodiments is that Figure 8 In the embodiment shown, an additional refrigerant path enters the outdoor heat exchanger 12 after passing through the fifth valve port 311 and the seventh valve port 313 of the second reversing valve 31 and the first valve port 251 and the second valve port 252 of the first reversing valve 25, so that the amount of refrigerant entering the heat recovery heat exchanger 13 can be better regulated, and the refrigerant coming out of the compressor 17 directly reaching the first reversing valve 25 can be guaranteed to be a gaseous refrigerant, while the refrigerant passing through the heat recovery heat exchanger 13 may contain liquid refrigerant after heat exchange. Pure gaseous refrigerant can better ensure that the first reversing valve 25 has sufficient pressure difference for reversing, so that the pressure loss of the refrigerant pipeline is small, and the second reversing valve 31 is not easily affected by impurities, so that the system runs stably.

[0133] like Fig. 9As shown, when domestic hot water is produced in the heating mode, the fifth valve port 311 of the second reversing valve 31 is connected with the sixth valve port 312, the eighth valve port 321 of the third reversing valve 32 is connected with the ninth valve port 322, the first valve port 251 of the first reversing valve 25 is connected with the fourth valve port 254, the second valve port 252 of the first reversing valve 25 is connected with the third valve port 253, the first throttling device 27 is closed, and the second throttling device 29 is opened. That is, when hot water needs to be prepared in the heating mode, the high-temperature gaseous refrigerant outputted from the outlet 172 of the compressor 17 first passes through the fifth valve port 311 and the sixth valve port 312 of the second reversing valve 31 and then enters the refrigerant inlet 131 of the heat recovery heat exchanger 13, and the high-temperature gaseous refrigerant exchanges heat with the water in the water storage tank 11 in the heat recovery heat exchanger 13, and becomes a medium-temperature gaseous refrigerant after preparing hot water, and the medium-temperature gaseous refrigerant outputted from the refrigerant outlet 132 of the heat recovery heat exchanger 13 passes through the eighth valve port 321 and the ninth valve port 322 of the third reversing valve 32 and the first valve port 251 and the fourth valve port 254 of the first reversing valve 25 and then enters the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14, and the medium-temperature gaseous refrigerant exchanges heat with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14. After heat exchange, the medium-temperature liquid refrigerant is converted into a medium-temperature liquid refrigerant. The medium-temperature liquid refrigerant outputted from the third refrigerant port 141 of the air-conditioning side heat exchanger 14 passes through the second one-way valve 28 and enters the third interface 303 of the liquid storage container 30. The medium-temperature liquid refrigerant outputted from the second interface 302 of the liquid storage container 30 passes through the second throttling device 29 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the second refrigerant port 122 of the outdoor side heat exchanger 12. The low-temperature liquid refrigerant evaporates and absorbs heat in the outdoor side heat exchanger 12 and becomes a low-temperature gaseous refrigerant. The low-temperature gaseous refrigerant outputted from the first refrigerant port 121 of the outdoor side heat exchanger 12 passes through the second valve port 252 and the third valve port 253 of the first reversing valve 25 and then passes through the gas-liquid separator 33 and returns to the inlet 171 of the compressor 17, and the cycle is repeated. The heat recovery heat exchanger 13 is connected to the water storage tank 11, so that hot water can be prepared while heating in winter, thereby improving energy utilization.

[0134] like Fig.10As shown, when domestic hot water is produced in the heating mode, the fifth valve port 311 of the second reversing valve 31 is respectively connected with the sixth valve port 312 and the seventh valve port 313, the eighth valve port 321 of the third reversing valve 32 is connected with the ninth valve port 322, the first valve port 251 of the first reversing valve 25 is connected with the fourth valve port 254, the second valve port 252 of the first reversing valve 25 is connected with the third valve port 253, the first throttling device 27 is closed, and the second throttling device 29 is opened. That is, when hot water needs to be prepared in the heating mode, the high-temperature gaseous refrigerant output from the outlet 172 of the compressor 17 enters the refrigerant inlet 131 of the heat recovery heat exchanger 13 after passing through the fifth valve port 311 and the sixth valve port 312 of the second reversing valve 31, and enters the air conditioning side heat exchanger after passing through the fifth valve port 311 and the seventh valve port 313 of the second reversing valve 31 and the first valve port 251 and the fourth valve port 254 of the first reversing valve 25. The high-temperature gaseous refrigerant is heat-exchanged with the water in the water storage tank 11 in the heat recovery heat exchanger 13 to prepare hot water and then becomes a medium-temperature gaseous refrigerant. The medium-temperature gaseous refrigerant outputted from the refrigerant outlet 132 of the heat recovery heat exchanger 13 passes through the eighth valve port 321 and the ninth valve port 322 of the third reversing valve 32 and the first valve port 251 and the fourth valve port 254 of the first reversing valve 25 and then enters the fourth refrigerant port 254 of the air conditioning side heat exchanger 14. Refrigerant port 142, the medium-temperature gaseous refrigerant is converted into medium-temperature liquid refrigerant after heat exchange with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14, the medium-temperature liquid refrigerant outputted from the third refrigerant port 141 of the air-conditioning side heat exchanger 14 passes through the second one-way valve 28 and enters the third interface 303 of the liquid storage container 30, the medium-temperature liquid refrigerant outputted from the second interface 302 of the liquid storage container 30 passes through the second throttling device 29 to be throttled and cooled to be a low-temperature liquid refrigerant with a lower temperature, and then enters the second refrigerant port 122 of the outdoor heat exchanger 12, the low-temperature liquid refrigerant evaporates and absorbs heat in the outdoor heat exchanger 12 to be converted into a low-temperature gaseous refrigerant, the low-temperature gaseous refrigerant outputted from the first refrigerant port 121 of the outdoor heat exchanger 12 passes through the second valve port 252 and the third valve port 253 of the first reversing valve 25 and then passes through the gas-liquid separator 33 and returns to the inlet 171 of the compressor 17, for a reciprocating cycle. The heat recovery heat exchanger 13 is connected to the water storage tank 11, so that hot water can be prepared while heating in winter, thereby improving energy utilization.

[0135] Specifically, Fig.10 and Fig. 9 The difference between the shown embodiments is that Fig.10In the embodiment shown, an additional path is provided to enter the air-conditioning side heat exchanger 14 after passing through the fifth valve port 311 and the seventh valve port 313 of the second reversing valve 31 and the first valve port 251 and the fourth valve port 254 of the first reversing valve 25, so that the amount of refrigerant entering the heat recovery heat exchanger 13 can be better regulated, and the refrigerant coming out of the compressor 17 directly reaching the first reversing valve 25 can be guaranteed to be a gaseous refrigerant, while the refrigerant passing through the heat recovery heat exchanger 13 may contain liquid refrigerant after heat exchange. Pure gaseous refrigerant can better ensure that the first reversing valve 25 has sufficient pressure difference for reversing, so that the pressure loss of the refrigerant pipeline is small, and the second reversing valve 31 is not easily affected by impurities, so that the system runs stably.

[0136] like Fig.11 As shown, in the pure hot water mode, the fifth valve port 311 of the second reversing valve 31 is connected with the sixth valve port 312, the eighth valve port 321 of the third reversing valve 32 is connected with the tenth valve port 323, the second valve port 252 of the first reversing valve 25 is connected with the third valve port 253, the first throttling device 27 is closed, and the second throttling device 29 is opened. That is, when only hot water needs to be prepared, the high-temperature gaseous refrigerant output from the outlet 172 of the compressor 17 first passes through the fifth valve port 311 and the sixth valve port 312 of the second reversing valve 31 and then enters the refrigerant inlet 131 of the heat recovery heat exchanger 13. The high-temperature gaseous refrigerant exchanges heat with the water in the water storage tank 11 in the heat recovery heat exchanger 13 to prepare hot water. After preparing the hot water, it becomes a medium-temperature liquid refrigerant. The medium-temperature liquid refrigerant output from the refrigerant outlet 132 of the heat recovery heat exchanger 13 passes through the eighth valve port 321 and the tenth valve port 323 of the third reversing valve 32 and then enters the first interface of the liquid storage container 30. 301, the medium-temperature liquid refrigerant output from the second interface 302 of the liquid storage container 30 is throttled and cooled by the second throttling device 29 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the second refrigerant port 122 of the outdoor heat exchanger 12, and the low-temperature liquid refrigerant evaporates and absorbs heat in the outdoor heat exchanger 12 to become a low-temperature gaseous refrigerant, and the low-temperature gaseous refrigerant output from the first refrigerant port 121 of the outdoor heat exchanger 12 passes through the second valve port 252 and the third valve port 253 of the first reversing valve 25 and then returns to the inlet 171 of the compressor 17 through the gas-liquid separator 33, and the cycle is repeated. The heat recovery heat exchanger 13 is connected to the water storage tank 11, so that all the heat from the compressor 17 can be used alone in the heat recovery heat exchanger 13 to exchange heat with the water in the water storage tank 11, and the energy is used in a targeted manner. When making hot water, the refrigerant loop is shortened, and it does not need to pass through the air-conditioning side heat exchanger 14, and the heat exchange efficiency is higher.

[0137] like Fig.12As shown, in the cooling mode, the fifth valve port 311 of the second reversing valve 31 is connected to the seventh valve port 313, the first valve port 251 of the first reversing valve 25 is connected to the second valve port 252, the fourth valve port 254 of the first reversing valve 25 is connected to the third valve port 253, the first throttling device 27 is opened, and the second throttling device 29 is closed. That is, when cooling is performed alone in summer, the high-temperature gaseous refrigerant output from the outlet 172 of the compressor 17 passes through the fifth valve port 311 and the seventh valve port 313 of the second reversing valve 31 and the first valve port 251 and the second valve port 252 of the first reversing valve 25, and then enters the first refrigerant port 121 of the outdoor heat exchanger 12. The high-temperature gaseous refrigerant condenses and releases heat in the outdoor heat exchanger 12 to become a medium-temperature liquid refrigerant. The medium-temperature liquid refrigerant output from the second refrigerant port 122 of the outdoor heat exchanger 12 passes through the first one-way valve 26 and then enters the second interface 302 of the liquid storage container 30. The third interface 303 of the liquid storage container 30 The output medium-temperature liquid refrigerant is throttled and cooled by the first throttling device 27 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the third refrigerant port 141 of the air-conditioning side heat exchanger 14. The low-temperature liquid refrigerant exchanges heat with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14, and the low-temperature liquid refrigerant absorbs the heat of the circulating water and evaporates to become a low-temperature gaseous refrigerant. The low-temperature gaseous refrigerant output from the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14 passes through the fourth valve port 254 and the third valve port 253 of the first reversing valve 25, and then passes through the gas-liquid separator 33 and returns to the inlet 171 of the compressor 17, and circulates back and forth.

[0138] like Fig.13As shown, in the heating mode, the fifth valve port 311 of the second reversing valve 31 is connected with the seventh valve port 313, the first valve port 251 of the first reversing valve 25 is connected with the fourth valve port 254, the second valve port 252 of the first reversing valve 25 is connected with the third valve port 253, the first throttling device 27 is closed, and the second throttling device 29 is opened. That is, when heating alone is used in winter, the high-temperature gaseous refrigerant output from the outlet 172 of the compressor 17 passes through the fifth valve port 311 and the seventh valve port 313 of the second reversing valve 31 and the first valve port 251 and the fourth valve port 254 of the first reversing valve 25 and then enters the fourth refrigerant port 142 of the air-conditioning side heat exchanger 14. The high-temperature gaseous refrigerant is converted into medium-temperature liquid refrigerant after heat exchange with the circulating water in the terminal device 35 in the air-conditioning side heat exchanger 14. The medium-temperature liquid refrigerant output from the third refrigerant port 141 of the air-conditioning side heat exchanger 14 passes through the second one-way valve 28 and then enters the first refrigerant port 142 of the liquid storage container 30. Three interfaces 303, the medium-temperature liquid refrigerant output from the second interface 302 of the liquid storage container 30 is throttled and cooled by the second throttling device 29 to become a low-temperature liquid refrigerant with a lower temperature, and then enters the second refrigerant port 122 of the outdoor heat exchanger 12. The low-temperature liquid refrigerant evaporates and absorbs heat in the outdoor heat exchanger 12 to become a low-temperature gaseous refrigerant. The low-temperature gaseous refrigerant output from the first refrigerant port 121 of the outdoor heat exchanger 12 passes through the second valve port 252 and the third valve port 253 of the first reversing valve 25 and then returns to the inlet 171 of the compressor 17 through the gas-liquid separator 33, and repeats the cycle.

[0139] It should be noted here that the above-mentioned high, medium and low temperatures are only relative expressions, and the gaseous refrigerant can also refer to a gas-liquid two-phase state or a gaseous state, which is not limited here.

[0140] By implementing the utility model, the following beneficial effects are achieved:

[0141] The utility model integrates the air-conditioning side water pump 15 and the pressure buffer 16 in the hydraulic module of the traditional trigeneration equipment into the outdoor main unit, so that the outdoor main unit has the function of the hydraulic module, simplifies the hydraulic module components, and thus can simplify the number of components, which is conducive to the miniaturized design of the equipment.

[0142] At the same time, the water storage tank 11, the outdoor heat exchanger 12, the heat recovery heat exchanger 13, the air-conditioning side heat exchanger 14, the compressor 17, the heat recovery heat exchanger water pump 18 and the throttling module are all integrated into the outdoor main unit, which can complete heating, cooling and preparation of domestic hot water without additional matching components such as hydraulic modules and domestic hot water modules, thereby improving the integration of the product, reducing the complexity of installing multiple components during the engineering installation process, and improving the user experience.

[0143] It can be understood that the above embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model; it should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above embodiments or technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model, that is, the embodiments described in "some embodiments" can be freely combined with any of the above and below embodiments; therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An outdoor host, characterized in that: include: A housing, wherein the interior of the housing is used to accommodate a compressor, an outdoor heat exchanger, a throttling module, an air-conditioning side heat exchanger, an air-conditioning side water pump, a pressure buffer, a water storage tank, a heat recovery heat exchanger, and a heat recovery heat exchanger water pump; Wherein, the compressor is used to provide refrigerant, and the compressor is connected to at least two of the outdoor heat exchanger, the air conditioning side heat exchanger and the heat recovery heat exchanger through pipelines; The throttling module is used to realize throttling expansion of the refrigerant, and the throttling module is connected to at least two of the outdoor heat exchanger, the air conditioning side heat exchanger and the heat recovery heat exchanger through a pipeline; The outdoor heat exchanger is used to realize heat exchange between the refrigerant and the outside air; The air-conditioning side heat exchanger is used to realize heat exchange between the refrigerant and the water in the external terminal equipment; The air-conditioning side water pump is connected to the air-conditioning side heat exchanger, and the air-conditioning side water pump is used to provide power for water circulation between the air-conditioning side heat exchanger and the external terminal device; The pressure buffer is connected to the air conditioner side heat exchanger, and the pressure buffer is used to adjust the water pressure between the air conditioner side heat exchanger and the external terminal device; The water storage tank is connected to the heat recovery heat exchanger, the heat recovery heat exchanger is used to prepare domestic water by heat exchange between a refrigerant and water in the water storage tank, and the water storage tank is used to store domestic water; The heat recovery heat exchanger water pump is connected to the heat recovery heat exchanger, and the heat recovery heat exchanger water pump is used to provide power for water circulation between the heat recovery heat exchanger and the water storage tank.

2. The outdoor host according to claim 1, characterized in that: The water storage tank and the outdoor heat exchanger are installed on both sides of the inner length direction of the shell, and the water storage tank is vertically arranged.

3. The outdoor host according to claim 1, characterized in that: The heat recovery heat exchanger is installed below the corresponding water storage tank.

4. The outdoor host according to claim 3, characterized in that: The heat recovery heat exchanger water pump is installed at the corresponding lower part of the water storage tank.

5. The outdoor host according to claim 4, characterized in that: The housing includes a chassis; The outdoor host also includes: A water tank bracket, wherein the water tank bracket is fixed on the chassis, the water tank is installed on the water tank bracket to form a containing space between the bottom of the water tank and the chassis, and the heat recovery heat exchanger and the heat recovery heat exchanger water pump are located in the containing space.

6. The outdoor host according to claim 1, characterized in that: The housing includes a chassis; The outdoor host also includes: A first water pump bracket, through which the heat recovery heat exchanger water pump is installed inside the shell.

7. The outdoor host according to claim 1, characterized in that: The housing includes a chassis, and the heat recovery heat exchanger is a shell-and-tube heat exchanger; The outdoor host also includes: A first heat exchanger bracket is fixed on the chassis, the shell and tube heat exchanger is installed on the first heat exchanger bracket, and the shell and tube heat exchanger is wound around the periphery of the heat recovery heat exchanger water pump.

8. The outdoor host according to claim 1, characterized in that: The compressor, the throttling module, the air-conditioning side heat exchanger, the air-conditioning side water pump and the pressure buffer are installed at the corresponding lower part of the outdoor side heat exchanger.

9. The outdoor host according to claim 1, characterized in that: The air conditioner side water pump and the pressure buffer are stacked in the height direction of the interior of the housing, and the air conditioner side water pump and the pressure buffer are located at one end in the width direction of the interior of the housing.

10. The outdoor host according to claim 1, characterized in that: The outdoor heat exchanger includes a first refrigerant port and a second refrigerant port connected to the first refrigerant port; The heat recovery heat exchanger comprises a refrigerant inlet, a refrigerant outlet connected to the refrigerant inlet, a first water inlet and a first water outlet connected to the first water inlet; The air conditioning side heat exchanger comprises a third refrigerant port, a fourth refrigerant port connected to the third refrigerant port, a second water inlet and a second water outlet connected to the second water inlet; Wherein, at least one of the refrigerant inlet, the first refrigerant port and the fourth refrigerant port is connected to the outlet of the compressor through a pipeline; The refrigerant outlet is connected to at least one of the throttling module, the first refrigerant port and the fourth refrigerant port through a pipeline; The second refrigerant port is connected to the third refrigerant port through the throttling module; The inlet of the compressor is connected to the first refrigerant port and / or the fourth refrigerant port through a pipeline; The water storage tank is connected to the first water inlet and the first water outlet respectively; The heat recovery heat exchanger water pump is arranged at the first water inlet end or the first water outlet end; The air conditioning side water pump is arranged at the second water inlet end or the second water outlet end; The pressure buffer is arranged at the second water inlet end or the second water outlet end.

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