Heat exchange assembly, battery pack and vehicle

Abstract

The utility model provides a heat exchange assembly, a battery pack and a vehicle, and relates to the technical field of power batteries. The heat exchange assembly comprises a connecting piece, a connecting base and a cold plate. The connecting piece is arranged on the connecting seat, a first flow channel and a second flow channel are arranged in the connecting piece, and the first flow channel and the second flow channel are respectively communicated with the expansion valve; a liquid inlet through pipe and a liquid outlet through pipe are arranged on the cold plate, the liquid inlet through pipe is inserted into the connecting base and communicates with the first flow channel, and the liquid outlet through pipe is inserted into the connecting base and communicates with the second flow channel; the first flow channel of the connecting piece is communicated with the liquid inlet through pipe, and the second flow channel of the connecting piece is communicated with the liquid outlet through pipe so that the expansion valve and the cold plate can be directly integrated together, the overall structure is more compact, and installation with the expansion valve is facilitated. The connecting piece is arranged on the connecting base, the liquid inlet through pipe and the liquid outlet through pipe are both inserted into the connecting base, it can be guaranteed that connection between the connecting piece and the liquid inlet through pipe and connection between the connecting piece and the liquid outlet through pipe are more stable, and the problems of looseness or liquid leakage and the like caused by bumping of a vehicle are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, in particular to a heat exchange assembly, a battery pack and a vehicle. BACKGROUND

[0002] The battery pack of an electric vehicle will generate heat during operation, causing the temperature of the battery pack to rise. The longer the battery pack operates, the more heat it accumulates, and the higher the temperature. If the battery pack is not cooled in time, the working performance and service life of the battery pack will be affected.

[0003] In the battery pack, the cell module is arranged on the cold plate, and the cold plate is internally provided with a flow channel. The cooling medium becomes refrigerant through the expansion valve, and the refrigerant flows through the flow channel of the cold plate to cool and lower the temperature of each cell in the cell module. The cold plate and the expansion valve are connected through connecting pipes and adapters.

[0004] The cold plate and the expansion valve are connected in this indirect manner, and the connection structure is relatively complex, and the overall assembly is relatively large in size, which makes it inconvenient to install in the vehicle. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a heat exchange assembly, a battery pack and a vehicle to solve the problem that when the expansion valve and the cold plate are connected through connecting pipes and adapters, the connection structure is relatively complex, the overall assembly is relatively large in size, and it is inconvenient to install in the vehicle.

[0006] In a first aspect, the present application provides a heat exchange assembly, comprising a connecting piece, a connecting seat and a cold plate;

[0007] The connecting piece is arranged on the connecting seat, and the connecting piece has a first flow channel and a second flow channel therein, and the first flow channel and the second flow channel are respectively communicated with the expansion valve;

[0008] The cold plate is provided with an inlet pipe and an outlet pipe, the inlet pipe is inserted into the connecting seat and communicated with the first flow channel, and the outlet pipe is inserted into the connecting seat and communicated with the second flow channel, so that the refrigerant flows into the cold plate through the first flow channel and the inlet pipe in sequence, and flows to the expansion valve through the outlet pipe and the second flow channel in sequence.

[0009] In a possible implementation, the heat exchange assembly provided by the present application is provided, and one side of the cold plate is provided with a mounting seat, and the inlet pipe and the outlet pipe are arranged on the mounting seat;

[0010] The connecting seat is arranged between the connecting piece and the mounting seat.

[0011] In a possible implementation, the heat exchange assembly provided by the present application is provided, and the first flow channel has a first inlet and a first outlet, and the second flow channel has a second inlet and a second outlet;

[0012] The first inlet and the second outlet are both located on the same side of the connecting piece, and the first outlet and the second inlet are both located on the other side of the connecting piece.

[0013] The first inlet and the second outlet are both communicated with the expansion valve, the first outlet is communicated with the liquid inlet pipe, and the second inlet is communicated with the liquid outlet pipe.

[0014] In a possible implementation, the heat exchange assembly provided by the present application is provided with a mounting groove on one side of the connecting seat facing the mounting seat, and at least part of the mounting seat is located in the mounting groove.

[0015] In a possible implementation, the heat exchange assembly provided by the present application is provided with a first sealing member between the first flow channel and the liquid inlet pipe and between the second flow channel and the liquid outlet pipe.

[0016] In a possible implementation, the heat exchange assembly provided by the present application is provided with a second sealing member between the connecting piece and the connecting seat.

[0017] In a possible implementation, the heat exchange assembly provided by the present application further comprises a fastener.

[0018] The connecting piece is provided with a fixing part, and the fastener is used to fixedly connect the fixing part and the connecting seat.

[0019] In a possible implementation, the heat exchange assembly provided by the present application is provided with a fastener.

[0020] The battery cell module is arranged in the frame, the cold plate of the heat exchange assembly is arranged in the frame and located at the bottom of the battery cell module, and the connecting seat of the heat exchange assembly is connected with the frame.

[0021] In a possible implementation, the connecting seat of the heat exchange assembly is fixed to the outer side of the frame, and the liquid inlet pipe and the liquid outlet pipe of the heat exchange assembly are respectively located outside the frame.

[0022] In a possible implementation, the heat exchange assembly provided by the present application is provided with a fastener.

[0023] The expansion valve in the refrigerant system is connected with the connecting piece of the battery pack.

[0024] This utility model provides a heat exchange component, a battery pack, and a vehicle. The heat exchange component includes a connector, a connecting seat, and a cold plate. The connector is disposed on the connecting seat and has a first flow channel and a second flow channel, which are respectively connected to an expansion valve. The cold plate is provided with an inlet pipe and an outlet pipe. The inlet pipe is inserted into the connecting seat and communicates with the first flow channel, and the outlet pipe is inserted into the connecting seat and communicates with the second flow channel. The first flow channel of the connector communicates with the inlet pipe, and the second flow channel of the connector communicates with the outlet pipe, so as to directly integrate the expansion valve and the cold plate together, making the overall structure more compact and convenient for installation with the expansion valve. The connector is disposed on the connecting seat, and the inlet pipe and outlet pipe are both inserted into the connecting seat, which can ensure a more stable connection between the connector and the inlet and outlet pipes, and prevent problems such as loosening or leakage caused by vehicle bumps. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 This is a schematic diagram of the battery pack structure provided in an embodiment of this application;

[0027] Figure 2 for Figure 1 Exploded view;

[0028] Figure 3 for Figure 2 Exploded view of the heat exchange component provided in the embodiment of this application as referred to in Figure A;

[0029] Figure 4 for Figure 3 A cross-sectional view of the heat exchange component provided in the embodiments of this application;

[0030] Figure 5 for Figure 3 Another view of the heat exchange component provided in the embodiments of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - Heat exchanger assembly;

[0033] 110 - Connector;

[0034] 111 - First flow channel; 1111 - First inlet; 1112 - First outlet;

[0035] 112 - Second flow channel; 1121 - Second inlet; 1122 - Second outlet;

[0036] 113-Fixing part;

[0037] 120 - connecting seat;

[0038] 121 - mounting groove;

[0039] 130 - cold plate;

[0040] 131 - mounting seat;

[0041] 140 - liquid inlet passage;

[0042] 150 - liquid outlet passage;

[0043] 160 - first seal;

[0044] 170 - second seal;

[0045] 180 - fastener;

[0046] 200 - frame.

[0047] The specific embodiments of the application will now be described in detail with reference to the following figures. These figures and the following description are not meant to limit the application's concept to a particular embodiment, but to explain and teach the concept of the application to those skilled in the art. DETAILED DESCRIPTION

[0048] The exemplary embodiments will be described in detail with reference to the accompanying drawings. Unless specified otherwise, the same or similar components in the different drawings are referred to with the same or similar reference numerals. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the application as detailed in the appended claims.

[0049] The terms "first", "second", "third", and "fourth" and the like, if any, in the description and in the claims of the present application and in the above description of the drawings, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms in the description is not meant to limit the scope of the application to the precise embodiments described but rather a description of specific embodiments is meant to encompass all embodiments falling within the scope of the application, as will be detailed in the appended claims. Moreover, the terms "comprise", "have", "contain" and "include" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product or apparatus that comprises, has, contains or includes an item or list of items who are not mutually exclusive is not intended to be limited to the disclosure of those items unless specifically stated otherwise. Furthermore, unless specifically stated otherwise, the use of the singular is not intended to exclude the plural.

[0050] As described in the background, when the expansion valve in the cooling system of the vehicle and the cold plate in the battery pack are connected through components such as connecting pipes and adapters, the connection structure is relatively complex, the overall assembly is relatively large in size, and the installation in the vehicle is not convenient. Moreover, the connecting pipeline between the expansion valve and the cold plate is relatively long, the anti-vibration performance of the whole assembly is poor, and the connecting pipe is prone to breakage.

[0051] In view of the above problems existing in the prior art, the utility model provides a heat exchange assembly, a battery pack and a vehicle, the heat exchange assembly includes a connecting piece, a connecting seat and a cold plate, the connecting piece is arranged on the connecting seat, the connecting piece has a first flow channel and a second flow channel, the first flow channel and the second flow channel are communicated with the expansion valve respectively, the cold plate is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is inserted into the connecting seat and communicated with the first flow channel, the liquid outlet pipe is inserted into the connecting seat and communicated with the second flow channel, the first flow channel of the connecting piece is communicated with the liquid inlet pipe, the second flow channel of the connecting piece is communicated with the liquid inlet pipe and the liquid outlet pipe, so that the expansion valve and the cold plate are directly integrated together, the overall structure is more compact, the installation of the expansion valve is facilitated, the distance between the expansion valve and the cold plate is shortened, the anti-vibration performance is improved, and the cost is reduced, the connecting piece is arranged on the connecting seat, the liquid inlet pipe and the liquid outlet pipe are inserted into the connecting seat, the connection between the connecting piece and the liquid inlet pipe and the liquid outlet pipe is more stable, and the problems of loosening and liquid leakage caused by the bumping of the vehicle are prevented.

[0052] Next, the exemplary application scenarios of the utility model are introduced.

[0053] The heat exchange assembly provided by the utility model can be applied to the battery pack of a new energy vehicle, such as the battery pack of a pure electric drive vehicle and the battery pack of a plug-in hybrid vehicle. Specifically, the heat exchange assembly provided by the utility model can directly integrate the expansion valve and the cold plate together, improve the compactness of the structure, facilitate the installation of the expansion valve and the cold plate, and has strong stability and can prevent problems such as loosening and liquid leakage caused by the bumping of the vehicle.

[0054] Next, the technical solutions of the application and how the technical solutions of the application solve the above technical problems are described in detail with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the application will be described below with reference to the drawings.

[0055] In the first aspect, referring to Figures 1 to 5 The application provides a heat exchange assembly 100, which includes a connecting piece 110, a connecting seat 120 and a cold plate 130.

[0056] The connecting piece 110 is arranged on the connecting seat 120, and the connecting piece 110 has a first flow channel 111 and a second flow channel 112 inside, and the first flow channel 111 and the second flow channel 112 are respectively communicated with the expansion valve.

[0057] The cold plate 130 is provided with a liquid inlet pipe 140 and a liquid outlet pipe 150, the liquid inlet pipe 140 is inserted into the connecting seat 120 and communicated with the first flow channel 111, and the liquid outlet pipe 150 is inserted into the connecting seat 120 and communicated with the second flow channel 112, so that the refrigerant flows into the cold plate 130 through the first flow channel 111 and the liquid inlet pipe 140 in sequence, and flows to the expansion valve through the liquid outlet pipe 150 and the second flow channel 112 in sequence.

[0058] In the embodiment, the heat exchange assembly 100 is mainly used for a battery pack, and the cell module and electrical components of the battery pack can be arranged on the cold plate 130, the connecting piece 110 can be connected with the expansion valve in the refrigerant system in the vehicle, and the connecting seat 120 can be arranged on the frame 200 of the battery pack. The cooling medium becomes the refrigerant through the expansion valve, the refrigerant flows into the cold plate 130 through the first flow channel 111 on the connecting piece 110 and the liquid inlet pipe 140 on the cold plate 130 in sequence, so that the cold plate 130 can cool the cell module and electrical components of the battery pack. And the refrigerant can flow to the expansion valve through the liquid outlet pipe 150 and the second flow channel 112 in sequence.

[0059] The first flow channel 111 of the connecting piece 110 is communicated with the liquid inlet pipe 140, and the second flow channel 112 of the connecting piece 110 is communicated with the liquid inlet and outlet pipe 150, so as to directly integrate the expansion valve and the cold plate 130 together, avoid the setting of the connecting pipe, make the overall structure more compact, and facilitate the installation of the expansion valve. And it can shorten the distance between the expansion valve and the cold plate 130, improve the anti-vibration performance, and reduce the cost.

[0060] It can be understood that the shortening of the distance between the expansion valve and the cold plate 130 can also improve the refrigeration effect of the refrigerant.

[0061] The connecting piece 110 is arranged on the connecting seat 120, and the liquid inlet pipe 140 and the liquid outlet pipe 150 are both inserted into the connecting seat 120, which can ensure that the connection between the connecting piece 110 and the liquid inlet pipe 140 and the liquid outlet pipe 150 is more stable, so as to prevent problems such as loosening or liquid leakage caused by the bumping of the vehicle.

[0062] It can be understood that, as shown in Figure 5 , the cold plate 130 has a winding flow channel inside, the liquid inlet pipe 140 and the liquid outlet pipe 150 are respectively communicated with the flow channel inside the cold plate 130, and the refrigerant flows through the flow channel inside the cold plate 130 to absorb the heat of the cell module and electrical components of the battery pack.

[0063] Specifically, referring to Figure 3 As shown in the figure, two through holes are arranged on the connecting seat 120, the liquid inlet pipe 140 is communicated with the first flow channel 111 through the corresponding through hole, and the liquid outlet pipe 150 is communicated with the second flow channel 112 through the corresponding through hole.

[0064] In an embodiment, referring to Figure 3 As shown in the figure, the cold plate 130 is provided with a mounting seat 131 on one side, and the liquid inlet pipe 140 and the liquid outlet pipe 150 are arranged on the mounting seat 131.

[0065] The connecting seat 120 is arranged between the connecting piece 110 and the mounting seat 131.

[0066] In the above structure, the mounting seat 131 is mainly used for the mounting of the liquid inlet pipe 140 and the liquid outlet pipe 150, and the connecting seat 120 is arranged between the connecting piece 110 and the cold plate 130 to increase the stability of the connection between the connecting piece 110 and the mounting seat 131.

[0067] In a preferred embodiment, referring to Figure 2 , Figure 3 and Figure 4 As shown in the figure, the connecting piece 110, the connecting seat 120 and the mounting seat 131 are arranged in sequence from top to bottom, the liquid inlet pipe 140 passes through one of the through holes on the connecting seat 120 from the bottom of the connecting seat 120 and is communicated with the first flow channel 111, and the liquid outlet pipe 150 passes through the other through hole on the connecting seat 120 from the bottom of the connecting seat 120 and is communicated with the second flow channel 112.

[0068] In the above structure, the overall structure is more compact, which is convenient for the mounting and cooperation of the connecting piece 110, the connecting seat 120, the mounting seat 131, the liquid inlet pipe 140 and the liquid outlet pipe 150, and the stability is stronger.

[0069] In a specific embodiment, referring to Figure 4 As shown in the figure, the first flow channel 111 has a first inlet 1111 and a first outlet 1112, and the second flow channel 112 has a second inlet 1121 and a second outlet 1122.

[0070] The first inlet 1111 and the second outlet 1122 are located on the same side of the connecting piece 110, and the first outlet 1112 and the second inlet 1121 are located on the other side of the connecting piece 110.

[0071] The first inlet 1111 and the second outlet 1122 are communicated with the expansion valve, the first outlet 1112 is communicated with the liquid inlet pipe 140, and the second inlet 1121 is communicated with the liquid outlet pipe 150.

[0072] In the above structure, the refrigerant enters the first flow channel 111 through the first inlet 1111, enters the liquid inlet passage 140 through the first outlet 1112, and then enters the cold plate 130. The refrigerant flows out of the cold plate 130 through the liquid outlet passage 150, enters the second flow channel 112 through the second inlet 1121, and flows to the expansion valve through the second outlet 1122.

[0073] The first inlet 1111 and the second outlet 1122 are located on the same side of the connecting piece 110, and the first outlet 1112 and the second inlet 1121 are located on the other side of the connecting piece 110. This arrangement facilitates the connection between the connecting piece 110 and the expansion valve, the connecting piece 110 and the cold plate 130, and makes the overall structure more compact.

[0074] Preferably, referring to Figure 3 The first inlet 1111 and the second outlet 1122 are located on the side wall of the connecting piece 110, and the first outlet 1112 and the second inlet 1121 are located on the bottom of the connecting piece 110 (i.e. the side of the connecting piece 110 facing the connecting seat 120), so that the overall structure of the expansion valve, the connecting piece 110 and the cold plate 130 is more compact.

[0075] In a specific embodiment, referring to Figure 5 The connecting seat 120 is provided with a mounting groove 121 on the side facing the mounting seat 131, and at least part of the mounting seat 131 is located in the mounting groove 121.

[0076] In the above structure, the mounting groove 121 is mainly used for mounting and cooperating with the mounting seat 131 and the connecting seat 120. At least part of the mounting seat 131 is located in the mounting groove 121, which can limit the relative movement between the mounting seat 131 and the connecting seat 120, prevent the liquid inlet passage 140 and the liquid outlet passage 150 from being broken, and improve the stability of the overall structure.

[0077] Of course, the mounting groove 121 can also play a positioning role, facilitating the insertion of the liquid inlet passage 140 and the liquid outlet passage 150 into the corresponding through holes of the connecting seat 120.

[0078] In an embodiment, referring to Figure 3 and Figure 4 A first sealing member 160 is arranged between the first flow channel 111 and the liquid inlet passage 140, and between the second flow channel 112 and the liquid outlet passage 150.

[0079] In the above structure, the first sealing member 160 is mainly used to improve the sealing performance between the first flow channel 111 and the liquid inlet passage 140, and between the second flow channel 112 and the liquid outlet passage 150, to prevent refrigerant leakage and affect the refrigeration effect.

[0080] In the prior art, the expansion valve in the vehicle's cooling system is connected to the cold plate 130 in the battery pack through components such as connecting pipes and adapters. Since there are many related components, each connection point needs to be sealed, resulting in a complex overall structure and poor sealing effect, which affects the cooling effect of the refrigerant.

[0081] In the above embodiment, the expansion valve and the cold plate 130 are only connected by the connector 110, the liquid inlet pipe 140 and the liquid outlet pipe 150. The connector 110 is provided with a first sealing element 160 between the liquid inlet pipe 140 and the liquid outlet pipe 150. The overall structure is compact and has a good sealing effect, which can improve the cooling effect of the refrigerant.

[0082] For example, refer to Figure 3 and Figure 4 As shown, the first sealing element 160 can be a sealing ring commonly used in the prior art. The inlet pipe 140 and the outlet pipe 150 can be respectively provided with receiving grooves. The sealing ring is fitted into the receiving groove to avoid relative movement of the sealing ring relative to the inlet pipe 140 or the outlet pipe 150.

[0083] Specifically, refer to Figure 3 and Figure 4 As shown, the number of sealing rings fitted on the liquid inlet pipe 140 can be 2, and the number of sealing rings fitted on the liquid outlet pipe 150 can also be 2, in order to increase the sealing effect.

[0084] In one embodiment, reference is made to... Figure 3 and Figure 4 As shown, a second sealing element 170 is provided between the connector 110 and the connector 120.

[0085] In the above structural configuration, the liquid inlet pipe 140 passes through the connector 120 and communicates with the first flow channel 111 of the connector 110, and the liquid outlet pipe 150 passes through the connector 120 and communicates with the second flow channel 112 of the connector 110. If there is a gap between the connector 120 and the connector 110, outside air will enter through the gap between the connector 120 and the connector 110 and come into contact with the liquid inlet pipe 140 and the liquid outlet pipe 150, which will affect the cooling effect of the refrigerant.

[0086] Therefore, a second sealing element 170 is provided between the connector 110 and the connector 120, mainly to prevent outside air from contacting the liquid inlet pipe 140 and the liquid outlet pipe 150, thereby improving the cooling effect of the refrigerant.

[0087] Specifically, refer to Figure 3 and Figure 4As shown, the connecting piece 110, the connecting base 120 and the mounting base 131 are sequentially stacked from top to bottom, the second sealing member 170 is arranged between the connecting piece 110 and the connecting base 120, and the liquid inlet passage 140 and the liquid outlet passage 150 are arranged inside the second sealing member 170, so as to improve the sealing performance between the connecting piece 110 and the connecting base 120, and prevent the liquid inlet passage 140 and the liquid outlet passage 150 from contacting with the external air.

[0088] For example, the second sealing member 170 can be a sealing ring commonly used in the prior art. The number of the sealing ring can be one, and one sealing ring is arranged in the inner ring of the sealing ring to jointly surround the liquid inlet passage 140 and the liquid outlet passage 150. Of course, referring to Figure 3 and Figure 4 , the number of the sealing ring can also be two, and two sealing rings are arranged in the inner rings of the corresponding sealing rings to surround the liquid inlet passage 140 and the liquid outlet passage 150, respectively.

[0089] In an embodiment, referring to Figure 2 , Figure 3 and Figure 4 , the heat exchange assembly 100 further comprises a fastener 180.

[0090] The connecting piece 110 has a fixing portion 113, and the fastener 180 is used to fixedly connect the fixing portion 113 and the connecting base 120.

[0091] In the above structure, the fastener 180 and the fixing portion 113 are mainly used to realize the detachable connection between the connecting piece 110 and the connecting base 120, so as to facilitate the installation and disassembly of the connecting piece 110 and the connecting base 120.

[0092] For example, referring to Figure 3 , the fastener 180 can be a bolt, the fixing portion 113 is provided with a bolt through hole, the connecting base 120 is provided with a threaded hole matched with the bolt, the bolt passes through the bolt through hole and is screwed with the threaded hole, so as to fix the fixing portion 113 on the connecting base 120, thereby realizing the detachable connection between the connecting piece 110 and the connecting base 120.

[0093] Specifically, referring to Figure 3 , the number of the fastener 180 is two, and the number of the fixing portion 113 is also two, the two fixing portions 113 are respectively located on the opposite sides of the connecting piece 110, and each fastener 180 can fix the corresponding fixing portion 113 on the connecting base 120, so as to increase the stability of the connection between the connecting piece 110 and the connecting base 120, and facilitate the loosening.

[0094] Secondly, referring to Figure 1 , Figure 2 and Figure 3As shown, the battery pack provided by the present application comprises a frame 200, a battery cell module and a heat exchange assembly 100 as described above.

[0095] The battery cell module is arranged in the frame 200, the cold plate 130 of the heat exchange assembly 100 is arranged in the frame 200 and located at the bottom of the battery cell module, and the connecting seat 120 of the heat exchange assembly 100 is connected with the frame 200.

[0096] In the above structure, since the battery pack adopts the heat exchange assembly 100 in the above embodiment, it also has the advantages and benefits brought by the heat exchange assembly 100, that is, the overall structure of the heat exchange assembly 100 is more compact, the stability is stronger, and the installation with the expansion valve is facilitated; at the same time, the refrigeration effect of the refrigerant is improved.

[0097] Specifically, the cooling medium becomes refrigerant through the expansion valve, the refrigerant flows into the cold plate 130 through the connecting piece 110, so as to cool the battery cell module through the cold plate 130. Then, the refrigerant flows out of the cold plate 130 and returns to the expansion valve through the connecting piece 110.

[0098] When the connecting seat 120 and the connecting piece 110 of the heat exchange assembly 100 are arranged in the frame 200, a hole needs to be opened on the side wall of the frame 200 to connect the connecting piece 110 with the expansion valve, and due to the size limitation of the hole diameter, the actual operation is relatively troublesome.

[0099] Therefore, in one embodiment, referring to Figure 1 , Figure 2 and Figure 5 , the connecting seat 120 of the heat exchange assembly 100 is fixed to the outside of the frame 200, and the inlet liquid passage pipe 140 and the outlet liquid passage pipe 150 of the heat exchange assembly 100 are respectively located outside the frame 200.

[0100] In the above structure, by fixing the connecting seat 120 to the outside of the frame 200, the connecting piece 110 is also correspondingly arranged outside the frame 200, so as to facilitate the direct connection of the expansion valve with the connecting piece 110 in the heat exchange assembly 100, thereby avoiding the opening operation on the side wall of the frame 200.

[0101] It can be understood that the inlet liquid passage pipe 140 and the outlet liquid passage pipe 150 are respectively located outside the frame 200, and also do not need to perform the opening operation on the side wall of the frame 200, so as to facilitate the connection between the inlet liquid passage pipe 140 and the first flow channel 111 of the connecting piece 110 and the connection between the outlet liquid passage pipe 150 and the second flow channel 112 of the connecting piece 110.

[0102] In one specific embodiment, referring to Figure 1 , Figure 2 and Figure 5As shown, the cold plate 130 is arranged in the frame 200, and the mounting seat 131 on the cold plate 130 extends out of the frame 200, and the inlet pipe 140 and the outlet pipe 150 are arranged in the mounting seat 131, and the connecting piece 110, the connecting seat 120 and the mounting seat 131 are arranged in sequence from top to bottom.

[0103] In a third aspect, the application provides a vehicle, comprising a vehicle body, a refrigerant system arranged in the vehicle body, and the battery pack as described above.

[0104] The expansion valve in the refrigerant system is connected to the connecting piece 110 of the battery pack.

[0105] In the above structure, since the vehicle adopts the battery pack in the above embodiment, the vehicle also has the advantages and benefits brought by the battery pack, which will not be described here.

[0106] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The application is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains or can relate. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the application are indicated by the appended claims.

[0107] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A heat exchange assembly, characterized by The heat exchange assembly comprises a connecting piece (110), a connecting seat (120) and a cold plate (130); The connecting piece (110) is arranged on the connecting seat (120), and the connecting piece (110) has a first flow channel (111) and a second flow channel (112) therein, and the first flow channel (111) and the second flow channel (112) are respectively communicated with an expansion valve; The cold plate (130) is provided with an inlet pipe (140) and an outlet pipe (150), the inlet pipe (140) is inserted into the connecting seat (120) and communicated with the first flow channel (111), and the outlet pipe (150) is inserted into the connecting seat (120) and communicated with the second flow channel (112), so that the refrigerant flows into the cold plate (130) through the first flow channel (111) and the inlet pipe (140) in sequence, and flows to the expansion valve through the outlet pipe (150) and the second flow channel (112) in sequence.

2. The heat exchange assembly of claim 1, wherein, One side of the cold plate (130) is provided with a mounting seat (131), and the inlet pipe (140) and the outlet pipe (150) are arranged on the mounting seat (131); The connecting seat (120) is arranged between the connecting piece (110) and the mounting seat (131).

3. The heat exchange assembly of claim 2, wherein, The first flow channel (111) has a first inlet (1111) and a first outlet (1112), and the second flow channel (112) has a second inlet (1121) and a second outlet (1122); The first inlet (1111) and the second outlet (1122) are located on the same side of the connecting piece (110), and the first outlet (1112) and the second inlet (1121) are located on the other side of the connecting piece (110); The first inlet (1111) and the second outlet (1122) are communicated with the expansion valve, the first outlet (1112) is communicated with the inlet pipe (140), and the second inlet (1121) is communicated with the outlet pipe (150).

4. The heat exchange assembly of claim 2, wherein, One side of the connecting seat (120) is provided with a mounting groove (121) facing the mounting seat (131), and at least part of the mounting seat (131) is located in the mounting groove (121).

5. Heat exchange assembly according to any of claims 1 to 4, characterized in that First sealing members (160) are arranged between the first flow channel (111) and the inlet pipe (140) and between the second flow channel (112) and the outlet pipe (150).

6. Heat exchange assembly according to any of claims 1 to 4, characterized in that Second sealing members (170) are arranged between the connecting piece (110) and the connecting seat (120).

7. Heat exchange assembly according to any of claims 1 to 4, characterized in that A fastener (180) is further included; The connecting piece (110) has a fixed part (113), and the fastener (180) is used for fixedly connecting the fixed part (113) and the connecting seat (120).

8. A battery pack, characterized by, The heat exchange assembly comprises a connecting piece (110), a connecting seat (120) and a cold plate (130); The heat exchange assembly comprises a connecting piece (110), a connecting seat (120) and a cold plate (130); The battery cell module is arranged in the frame (200), the cold plate (130) of the heat exchange assembly (100) is arranged in the frame (200) and located at the bottom of the battery cell module, and the connecting seat (120) of the heat exchange assembly (100) is connected with the frame (200).

9. The battery pack of claim 8, wherein, The connecting seat (120) of the heat exchange assembly (100) is fixed to the outer side of the frame (200), and the liquid inlet pipe (140) and the liquid outlet pipe (150) of the heat exchange assembly (100) are respectively located outside the frame (200).

10. A vehicle characterized by comprising: The battery pack according to claim 8 or 9 is arranged in the vehicle body. The expansion valve in the refrigerant system is connected with the connecting piece (110) of the battery pack.

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