Heat pump host

Abstract

The utility model relates to a heat pump host. The heat pump host comprises a case; the indoor heat exchange module is arranged in the case and comprises a plate heat exchanger, a water inlet pipe and a water outlet pipe; the water inlet pipe comprises a first water inlet end and a second water inlet end communicated with the first water inlet end; the first water inlet end is connected with the plate heat exchanger; the water outlet pipe comprises a first water outlet end and a second water outlet end communicated with the first water outlet end, and the first water outlet end is connected with the plate heat exchanger; and the connecting and positioning piece is arranged in the case, is fixed on the first side plate in parallel, and is used for limiting displacement generated when the second water inlet end and the second water outlet end are connected with an external pipeline. The heat pump host is beneficial to improving the efficiency, simplicity and stability of connection with an external water pipe. The heat pump host has the advantages of being simple in structure and easy and convenient to install.

Description

Technical Field

[0001] The utility model relates to the field of heating and ventilation, in particular to a heat pump host. Background Art

[0002] Existing heat pumps usually have plate heat exchangers and / or hot water shell-and-tube heat exchangers inside the heat pump main unit to complete the heat exchange between the two media for cooling, heating and preparing hot water, and are fixed to the outer casing of the heat pump main unit through inlet and outlet water pipes to form water inlets and outlets. The external inlet and outlet water pipes will be connected to the inlet and outlet water ports of the outer casing of the heat pump main unit to enable the hot water prepared by the heat pump main unit to be output to domestic water tanks, terminals and other equipment.

[0003] However, in existing designs, due to differences in design or assembly, the inlet and outlet water pipes and the water inlets and outlets may have certain installation and welding deviations, which may result in the inability to fix the external water pipes to the inlet and outlet water pipes in the heat pump host during subsequent installation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an improved heat pump host.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct a heat pump host, including:

[0006] A chassis, including a first side panel;

[0007] An indoor heat exchange module is arranged in the chassis, and includes a plate heat exchanger, a water inlet pipe and a water outlet pipe; the water inlet pipe includes a first water inlet end and a second water inlet end connected to the first water inlet end; the first water inlet end is connected to the plate heat exchanger; the water outlet pipe includes a first water outlet end and a second water outlet end connected to the first water outlet end, and the first water outlet end is connected to the plate heat exchanger;

[0008] A connection positioning member is arranged in the chassis and fixed parallel to the first side plate. The connection positioning member is used to limit the displacement generated when the second water inlet end and the second water outlet end are connected to an external pipeline.

[0009] In some embodiments, the connection positioning member is provided with a first pre-installed hole and a second pre-installed hole; the first pre-installed hole and the second pre-installed hole are arranged at intervals;

[0010] The first pre-installed hole is arranged corresponding to the second water inlet end;

[0011] The second pre-installed hole is arranged corresponding to the second water outlet end.

[0012] In some embodiments, the connection positioning member is in the shape of a longitudinal plate;

[0013] The first pre-installed hole and the second pre-installed hole are arranged at intervals along the length direction of the connecting positioning member.

[0014] In some embodiments, the first pre-installed hole is provided with a first joint, and the first joint is sleeved on the second water inlet end;

[0015] The second pre-installed hole is provided with a second joint, and the second joint is sleeved on the second water outlet end.

[0016] In some embodiments, the first joint includes a first sleeve portion and at least one first connecting portion; the first sleeve portion is inserted into the first pre-installed hole, and the first connecting portion is arranged at one end of the first sleeve portion and extends outward from the side wall of the first sleeve portion, and is used to be connected and fixed with the connecting positioning member;

[0017] The second joint includes a second sleeve portion and at least one second connecting portion; the second sleeve portion is inserted into the second pre-installed hole, the second connecting portion is arranged at one end of the second sleeve portion, and extends outward from the side wall of the second sleeve portion, for being connected and fixed to the connecting positioning member.

[0018] In some embodiments, the chassis includes a panel; a first side panel is disposed on one side of the panel;

[0019] The connection positioning member is provided with a through hole; the first side plate is provided with a first through hole, and the through hole is provided corresponding to the first through hole for allowing a screw assembly to pass through to fix the connection positioning member to the first side plate.

[0020] In some embodiments, a first mounting hole and a second mounting hole are provided on the first side plate; the first mounting hole and the second mounting hole are arranged at intervals and correspond to the second water inlet end and the second water outlet end respectively.

[0021] In some embodiments, the heat pump host further comprises:

[0022] A water pump for the shell and tube heat exchanger is arranged in the chassis;

[0023] A first connecting pipe, comprising a first connecting end and a second connecting end; the first connecting end is connected to the shell and tube heat exchanger water pump;

[0024] A first limiting structure, arranged and fixed in the chassis, for limiting and fixing the second connecting end;

[0025] A shell and tube heat exchanger is arranged in the chassis;

[0026] A second connecting pipe includes a third connecting end and a fourth connecting end; the third connecting end is connected to the shell and tube heat exchanger;

[0027] The second limiting structure is arranged in the chassis and is used for limiting and fixing the fourth connecting end.

[0028] In some embodiments, the first limiting structure includes a first limiting plate, a first limiting hole is provided on the first limiting plate, a third joint is installed in the first limiting hole: the second connection end is connected to the third joint;

[0029] And / or, the second limiting structure includes a second limiting plate, the second limiting plate is provided with a second limiting hole, the second limiting hole is installed with a fourth joint: the fourth connecting end is connected to the fourth joint.

[0030] In some embodiments, the chassis includes a chassis and a receiving cavity formed on the chassis, and a partition disposed in the chassis and parallel to and spaced from the chassis;

[0031] One end of the first limiting plate is connected to the partition plate and extends in a direction perpendicular to the partition plate;

[0032] One end of the second limiting plate is connected to the chassis, and the other end is connected to the partition.

[0033] The implementation of the utility model heat pump host has the following beneficial effects: the heat pump host sets a connection positioning piece in the chassis and fixes it parallel to the first side plate, and limits the displacement of the second water inlet end and the second water outlet end when connected to the external pipeline through the connection positioning piece, so as to facilitate the connection with the external pipeline, and avoid the installation or welding deviation of the water inlet pipe and the water outlet pipe due to the difference in design or assembly, so as to improve the connection efficiency with the external water pipe and the connection stability. The heat pump host has the advantages of simple structure and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0035] Figure 1 It is a schematic diagram of the structure of the heat pump host in some embodiments of the utility model;

[0036] Figure 2 yes Figure 1 The schematic diagram of partial structural decomposition of the heat pump main unit shown;

[0037] Figure 3 yes Figure 2 The schematic diagram of the partial structure of the heat pump host is shown;

[0038] Figure 4 yes Figure 3 Another partial structural schematic diagram of the heat pump main unit shown;

[0039] Figure 5 yes Figure 4 The enlarged schematic diagram of the local structure of the heat pump host is shown;

[0040] Figure 6 yes Figure 4 Another enlarged schematic diagram of the local structure of the heat pump main unit is shown. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in specific directions, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0043] Figure 1 as well as Figure 2 Some preferred embodiments of the heat pump host of the utility model are shown. The heat pump host is a dual or trigeneration equipment, which can complete heating, cooling, and preparing domestic hot water. The heat pump host can be connected to an external water tank to prepare hot water.

[0044] like Figure 1 as well as Figure 2As shown, the heat pump host includes a chassis 10, an outdoor heat exchange module 20, an indoor heat exchange module 30, and a connection and positioning component 40. The chassis 10 is used to accommodate the outdoor heat exchange module 20, the outdoor heat exchange module 20, the indoor heat exchange module 30, and the connection and positioning component 40. When the heat pump host is running, the external air can exchange heat with the outdoor heat exchange module 20 to achieve the purpose of releasing heat into the air or absorbing heat in the air. The indoor heat exchange module 30 can be connected to the terminal device to form a terminal loop, and heat exchange with the terminal loop through a refrigerant to achieve cooling or heating. A water pump, an expansion tank, etc. are provided between the indoor heat exchange module 30 and the terminal loop. The connection positioning member 41 can be used to limit the displacement generated when the second water inlet end 322 and the second water outlet end 332 are connected to the external pipeline, so as to facilitate the rapid connection and installation of the heat pump host and the external pipeline.

[0045] In some embodiments, the chassis 10 is roughly rectangular, and its inner side is hollow to form a housing chamber 100, which can be used to accommodate various components. The housing chamber 100 can be divided into a first cavity 10a and a second cavity 10b; the first cavity 10a and the second cavity 10b are adjacently arranged along the length direction of the chassis 10. An outdoor heat exchange module 20 can be arranged in the first cavity 10a. An indoor heat exchange module 30 can be arranged in the second cavity 10b. In some embodiments, a compressor, a shell and tube heat exchanger 81, a shell and tube heat exchanger water pump 50, an expansion water tank and other components can also be arranged in the second cavity 10b.

[0046] In some embodiments, the chassis 10 may include a chassis 11, a top cover 12, a panel 13, a back plate 14, a first side plate 15, a second side plate 16, and a middle partition 17. The chassis 11 and the top cover 12 are arranged opposite to each other, and the accommodating cavity 100 is formed on the chassis 11 and is located between the chassis 11 and the top cover 12. The panel 13 is arranged between the chassis 11 and the top cover 12. The back plate 14 can be arranged opposite to the panel 13, and the back plate 14 can cover the second cavity 10b. The first side plate 15 is arranged on one side of the panel 13. The second side plate 16 is arranged on the other side of the panel 13. The first side plate 15 and the second side plate 16 are arranged opposite to each other. The first side plate 15 is connected to the back plate 14, and the two are bent and arranged, and the two can be integrally formed. The middle partition 17 is arranged between the first side plate 15 and the second side plate 16, and is vertically connected to the panel 13, and the accommodating cavity 100 is divided into a first cavity 10a and a second cavity 10b. In some embodiments, a partition 18 is further provided on the inner side of the chassis 10. The partition 18 is arranged in the second cavity 10b and is parallel to and spaced from the chassis 11. The partition 18 can separate the second cavity 10b into two upper and lower spaces and play a role in supporting some components.

[0047] In some embodiments, the chassis 10 has a first mounting hole 151, a second mounting hole 152, a third mounting hole 153, and a fourth mounting hole 154. The first mounting hole 151, the second mounting hole 152, the third mounting hole 153, and the fourth mounting hole 154 are arranged at intervals on the first side plate 15 and are arranged through the thickness of the first side plate 15. The first mounting hole 151, the second mounting hole 152, the third mounting hole 153, and the fourth mounting hole 154 can be used for installing and fixing the pipes respectively.

[0048] like Figure 2 and Figure 3 As shown, in some embodiments, the outdoor heat exchange module 20 is disposed in the first cavity 10a, and may include an outdoor heat exchanger 21 and a fan (not shown), wherein the fan (not shown) is disposed near the panel 13. When the heat pump is running, the fan (not shown) is started and drives the external air to exchange heat with the outdoor heat exchanger 21.

[0049] In some embodiments, the indoor heat exchange module 30 is disposed in the second cavity 10b. In some embodiments, the indoor heat exchange module may include a plate heat exchanger 31, a water inlet pipe 32, and a water outlet pipe 33. When the heat pump is running, the high-temperature or low-temperature refrigerant exchanges heat with water in the plate heat exchanger 31, and under the action of the water pump, the hot water or cold water after the heat exchange is transported to the terminal device. The water inlet pipe 32 may include a first water inlet end 321 and a second water inlet end 322. The first water inlet end 321 is connected and fixed to the plate heat exchanger 31, and the second water inlet end 322 is connected to the first water inlet end 321. The water outlet pipe 33 includes a first water outlet end 331 and a second water outlet end 332. The first water outlet end 331 is connected and fixed to the plate heat exchanger 31, and the second water outlet end 332 is connected to the first water outlet end 331. The second water inlet end 322 and the second water outlet end 332 can be connected by a connection positioning component 40, and fixed to the chassis 10 by the connection positioning component 40. Specifically, the second water inlet end 322 can be fixed to the first mounting hole 151 by connecting the positioning component 40, and the second water outlet end 332 can be fixed to the chassis 10 by connecting the positioning component 40, specifically, it can be fixed to the second mounting hole 152 by connecting the positioning component 40.

[0050] like Figures 4 to 6As shown, in some embodiments, the connection positioning assembly 40 may include a connection positioning member 41. The connection positioning member 41 is disposed in the chassis 10, specifically fixedly disposed in the second cavity 10b, located on the side of the first side plate 15 facing the second side plate 16, and may be connected and fixed to the first side plate 15. The connection positioning member 41 may connect and fix the second water inlet end 322 and the second water outlet end 332, so that they are aligned with the first mounting hole 151 and the second mounting hole 152, respectively, and position the second water inlet end 322 and the second water outlet end 332, that is, limit the displacement generated when the second water inlet end 322 and the second water outlet end 332 are connected to the external pipe, thereby facilitating the connection with the external pipe and improving the connection efficiency.

[0051] In some embodiments, the connection positioning member 41 is in the shape of a longitudinal plate, specifically, the connection positioning member 41 can be a rectangular plate, which is a sheet metal member. The connection positioning member 41 can be arranged in parallel with the first side plate 15, and extend in a direction perpendicular to the chassis 11, and can be connected and fixed to the first side plate 15. In some embodiments, the connection positioning member 41 is provided with a first pre-installed hole 411 and a second pre-installed hole 412, and the first pre-installed hole 411 and the second pre-installed hole 412 can be arranged at intervals along the length direction of the connection positioning member 41, and are both arranged through the thickness direction of the connection positioning member 41. In some embodiments, the first pre-installed hole 411 and the second pre-installed hole 412 can both be round holes. The first pre-installed hole 411 can be arranged corresponding to the second water inlet end 322. The second pre-installed hole 412 can be arranged corresponding to the second water outlet end 332. In some embodiments, the connection positioning member 41 is provided with a through hole 413, and the through hole 413 can be connected and fixed to the first side plate 15 by setting a screw assembly. There may be two through holes 413, and the two through holes 413 may be spaced apart along the length direction of the connection positioning member 41. Specifically, the first side plate 15 may be provided with a first through hole 15a, and the first through hole 15a may be provided in a one-to-one correspondence with the through hole 413. The screw connection assembly may sequentially connect and fix the connection positioning member 41 to the first side plate 15 through the first through hole 15a and the through hole 413, which may further increase the stability of the connection positioning member 41. In some embodiments, the screw connection assembly may be a screw.

[0052] In some embodiments, the connection and positioning assembly 40 further includes a first joint 42, which is disposed at the first pre-installed hole 411, and is sleeved on the second water inlet end 322, and is fixed to the chassis 10 to form a water inlet connected to an external pipe. Specifically, the first joint 42 can be fixed to the first side panel 15. This allows the second water inlet end 322 to be fully aligned with the first mounting hole 151 of the first side panel 15, which is convenient for later installation and debugging, and achieves a shaping effect.

[0053] In some embodiments, the first joint 42 may include a first sleeve portion 421 and a first connecting portion 422. The first sleeve portion 421 is installed at the first pre-installed hole 411 and is a tubular structure with internal threads. The first sleeve portion 421 can be fixed to the second water inlet end 322 by interference fit or threaded connection, and can be fixed to the external pipe by threaded connection. The first connecting portion 422 can be two ends arranged at one end of the first sleeve portion 421, and can extend radially outwardly along the first sleeve portion 421, and is used to be connected and fixed to the connection positioning member 41 and the first side plate 15. The first connecting portion 422 is provided with a first connecting hole 4221, and the first connecting hole 4221 can be connected to the connecting positioning member 41 and the first side panel 15 by setting a screw assembly, or can be connected only to the first side panel 15. The first side panel 15 is provided with a second through hole 15b, and the second through hole 15b can be set one-to-one with the first connecting hole 4221. The screw assembly can be connected and fixed to the first side panel 15 with the first joint 42 through the second through hole 15b and the first connecting hole 4221.

[0054] In some embodiments, the connection and positioning assembly 40 further includes a second joint 43, which is disposed at the second pre-installed hole 412, and is sleeved on the second water outlet 332, and is fixed to the chassis 10 to form a water outlet connected to an external pipe. Specifically, the second joint 43 can be fixed to the first side panel 15. This allows the second water outlet 332 to be fully aligned with the first mounting hole 151 of the first side panel 15, which is convenient for later installation and debugging, and achieves a shaping effect.

[0055] In some embodiments, the second joint 43 may include a second sleeve portion 431 and a second connection portion 432. The second sleeve portion 431 is installed at the second pre-installed hole 412 and is a tubular structure with internal threads. The second sleeve portion 431 can be fixed to the second water outlet end 332 by interference fit or threaded connection, and can be fixed to the external pipe by threaded connection. The second connection portion 432 can be two ends arranged at one end of the second sleeve portion 431, and can extend radially outward along the second sleeve portion 431, and is used to be connected and fixed to the connection positioning member 41 and the chassis 10. The second connection portion 432 is provided with a second connection hole 4321. The second connection hole 4321 can be connected to the connection positioning member 41 and the first side plate 15 by setting a screw assembly, or it can be connected only to the first side plate 15.

[0056] In some embodiments, the heat pump host further includes a shell and tube heat exchanger water pump 50 and a shell and tube heat exchanger module 80, and the shell and tube heat exchanger module includes a shell and tube heat exchanger 81. The shell and tube heat exchanger water pump 50 can be connected to the shell and tube heat exchanger 81, and both are arranged in the chassis 10, specifically in the second cavity 10b. The shell and tube heat exchanger water pump 50 can be connected to an external water tank to pump water in the external water tank into the shell and tube heat exchanger 81 for heat exchange. The shell and tube heat exchanger 81 can be connected to an external water tank to transport the hot water after heat exchange to the external water tank.

[0057] In some embodiments, the heat pump host further includes a first connecting pipe 60, and the first connecting pipe 60 may include a first connecting end 61 and a second connecting end 62. The first connecting end 61 and the second connecting end 62 are connected to each other. The first connecting end 61 may be connected and fixed to the shell and tube heat exchanger water pump 50. The second connecting end 62 may be limited and fixed to the chassis 10.

[0058] In some embodiments, the heat pump host also includes a first limiting structure 70, which can be fixed in the chassis 10. Specifically, the first limiting structure 70 can be arranged in the second cavity 10b and installed on the partition 18. The first limiting structure 70 is used to limit and fix the second connection end 62. In some embodiments, the first limiting structure 70 includes a first limiting plate 71 and a third joint 72. The first limiting plate 71 is arranged on the partition 18 and extends in a direction perpendicular to the partition 18 toward the top cover 12. A first limiting hole 711 is provided on the first limiting plate 71, and the first limiting hole 711 can be used for the installation of the third joint 72, so that the second connection end 62 can be fully aligned with the third mounting hole 153 of the first side plate 15, which is convenient for later installation and debugging to achieve a plastic effect. The third joint 72 is passed through the first limiting hole 711 and can be sleeved on the second connection end 62. The third joint 72 can be fixed on the first side plate 15, and is located at the third mounting hole 153 of the first side plate 15, so as to form a water inlet connected to the external water tank. The third joint 72 may include a third sleeve portion 721 and a third connecting portion 722, wherein the third sleeve portion 721 can be installed at the first limiting hole 711, and is sleeved on the second connecting end 62, and is fixed to the second connecting end 62 by interference fit or threaded connection, and can be fixed to the external pipe by threaded connection. There are two third connecting portions 722, and the third connecting portion 722 is located at one end of the third sleeve portion 721 and extends radially outward along the third sleeve portion 721, and is used to be connected and fixed to the first limiting plate 71. The third connecting portion 722 is provided with a third connecting hole 7221, and the third connecting hole 7221 can be connected and fixed to the first limiting plate 71 and the first side plate 15 by setting a screw assembly, or it can be connected only to the first side plate 15.

[0059] In some embodiments, the shell and tube heat exchanger module 80 further includes a second connecting pipe 82, and the second connecting pipe 82 may include a third connecting end 821 and a fourth connecting end 822. The third connecting end 821 and the fourth connecting end 822 are connected to each other. The third connecting end 821 may be connected and fixed to the shell and tube heat exchanger 81. The fourth connecting end 822 may be limited and fixed on the chassis 10.

[0060] In some embodiments, the heat pump host also includes a second limiting structure 90, which can be fixed in the chassis 10. Specifically, the second limiting structure 90 can be arranged in the second cavity 10b and installed on the chassis 11. The second limiting structure 90 is used to limit and fix the fourth connection end 822. In some embodiments, the second limiting structure 90 includes a second limiting plate 91 and a fourth joint 92. The second limiting plate 91 is arranged on the chassis 11, and extends in the direction of the top cover 12 in a direction perpendicular to the chassis 11, and can be connected and fixed with the partition 18. A second limiting hole 911 is provided on the second limiting plate 91, and the second limiting hole 911 can be used for the installation of the fourth joint 92, so that the fourth connection end 822 can be fully aligned with the fourth mounting hole 154 of the first side plate 15, which is convenient for later installation and debugging to achieve a plastic effect. The fourth joint 92 is penetrated by the second limiting hole 911 and can be sleeved on the fourth connection end 822. The fourth joint 92 can be fixed on the first side plate 15, and is located at the fourth mounting hole 154 of the first side plate 15, so as to form a water outlet connected to the external water tank. The fourth joint 92 may include a fourth sleeve portion 921 and a fourth connecting portion 922, wherein the fourth sleeve portion 921 can be installed at the second limiting hole 911, and is sleeved on the fourth connecting end 822, and is fixed to the fourth connecting end 822 by interference fit or threaded connection, and can be fixed to the external pipe by threaded connection. There are two fourth connecting portions 922, and the fourth connecting portion 922 is located at one end of the fourth sleeve portion 921 and extends radially outwardly along the fourth sleeve portion 921, and is used to be connected and fixed to the second limiting plate 91. The fourth connecting portion 922 is provided with a fourth connecting hole 9221, and the fourth connecting hole 9221 can be connected and fixed to the second limiting plate 91 and the first side plate 15 by setting a screw assembly, or it can be connected only to the first side plate 15.

[0061] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they 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-mentioned 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. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A heat pump host, characterized in that: include: The chassis (10) comprises a first side panel (15); An indoor heat exchange module (30) is arranged in the chassis (10), and comprises a plate heat exchanger (31), a water inlet pipe (32) and a water outlet pipe (33); the water inlet pipe (32) comprises a first water inlet end (321) and a second water inlet end (322) in communication with the first water inlet end (321); the first water inlet end (321) is connected to the plate heat exchanger (31); the water outlet pipe (33) comprises a first water outlet end (331) and a second water outlet end (332) in communication with the first water outlet end (331); the first water outlet end (331) is connected to the plate heat exchanger (31); A connection positioning member (41) is arranged in the chassis (10) and is fixed parallel to the first side plate (15); the connection positioning member (41) is used to limit the displacement generated when the second water inlet end (322) and the second water outlet end (332) are connected to an external pipe.

2. The heat pump host according to claim 1, characterized in that: The connecting positioning member (41) is provided with a first pre-installed hole (411) and a second pre-installed hole (412); the first pre-installed hole (411) and the second pre-installed hole (412) are arranged at intervals; The first pre-installed hole (411) is arranged corresponding to the second water inlet end (322); The second pre-installed hole (412) is arranged corresponding to the second water outlet end (332).

3. The heat pump host according to claim 2, characterized in that: The connection positioning member (41) is in the shape of a longitudinal plate. The first pre-installed hole (411) and the second pre-installed hole (412) are arranged at intervals along the length direction of the connecting positioning member (41).

4. The heat pump host according to claim 3, characterized in that: The first pre-installed hole (411) is provided with a first joint (42), and the first joint (42) is sleeved on the second water inlet end (322); The second pre-installed hole (412) is provided with a second joint (43), and the second joint (43) is sleeved on the second water outlet end (332).

5. The heat pump main unit according to claim 4, characterized in that: The first joint (42) comprises a first sleeve portion (421) and at least one first connecting portion (422); the first sleeve portion (421) is inserted into the first pre-installed hole (411); the first connecting portion (422) is arranged at one end of the first sleeve portion (421) and extends outward from a side wall of the first sleeve portion (421) for being connected and fixed to the connecting positioning member (41); The second joint (43) comprises a second sleeve portion (431) and at least one second connecting portion (432); the second sleeve portion (431) is inserted into the second pre-installed hole (412); the second connecting portion (432) is arranged at one end of the second sleeve portion (431) and extends outward from the side wall of the second sleeve portion (431) for being connected and fixed to the connecting positioning member (41).

6. The heat pump host according to claim 1, characterized in that: The chassis (10) comprises a panel (13); the first side panel (15) is arranged on one side of the panel (13); The connecting positioning member (41) is provided with a through hole (413); the first side plate (15) is provided with a first through hole (15a), and the through hole (413) is arranged corresponding to the first through hole (15a) for allowing a screw connection component to pass through and fix the connecting positioning member (41) to the first side plate (15).

7. The heat pump host according to claim 6, characterized in that: The first side plate (15) is provided with a first mounting hole (151) and a second mounting hole (152); the first mounting hole (151) and the second mounting hole (152) are arranged at intervals and correspond to the second water inlet end (322) and the second water outlet end (332) respectively.

8. The heat pump host according to claim 1, characterized in that: The heat pump host also includes: A shell and tube heat exchanger water pump (50), arranged in the chassis (10); A first connecting pipe (60) comprising a first connecting end (61) and a second connecting end (62); the first connecting end (61) is connected to the shell-and-tube heat exchanger water pump (50); A first limiting structure (70) is disposed in the chassis (10) and is used to limit and fix the second connecting end (62); A shell and tube heat exchanger (81) is arranged in the chassis (10); A second connecting pipe (82) comprising a third connecting end (821) and a fourth connecting end (822); the third connecting end (821) is connected to the shell and tube heat exchanger (81); A second limiting structure (90) is disposed in the chassis (10) and is used to limit and fix the fourth connecting end (822).

9. The heat pump host according to claim 8, characterized in that: The first limiting structure (70) comprises a first limiting plate (71), the first limiting plate (71) is provided with a first limiting hole (711), the first limiting hole (711) is installed with a third joint (72), and the second connecting end (62) is connected to the third joint (72); And / or, the second limiting structure (90) comprises a second limiting plate (91), the second limiting plate (91) is provided with a second limiting hole (911), the second limiting hole (911) is installed with a fourth connector (92), and the fourth connecting end (822) is connected to the fourth connector (92).

10. The heat pump host according to claim 9, characterized in that: The chassis (10) comprises a chassis (11) and a partition (18) arranged parallel to and spaced from the chassis (11); One end of the first limiting plate (71) is connected to the partition plate (18) and extends in a direction perpendicular to the partition plate (18); One end of the second limiting plate (91) is connected to the chassis (11), and the other end is connected to the partition (18).

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