Heat exchange assembly, battery module and vehicle

Abstract

The application relates to the technical field of battery heat dissipation, and particularly discloses a heat exchange assembly, a battery module and a carrier. The heat exchange assembly comprises a pipeline, a liquid cooling piece and a current collector. The liquid cooling piece has a plurality of flow channels; the current collector comprises a first interface end and a second interface end, the first interface end is communicated with the pipeline, the second interface end is provided with a plurality of blocking parts and a plurality of opening parts; the second interface end is connected with the liquid cooling piece, the blocking parts block the flow channels, and the opening parts are communicated with the flow channels. In the application, the current collector is provided with the plurality of blocking parts and the plurality of opening parts at the second interface end, so that the current collector can replace the separating sheet in the prior art, that is, the current collector itself is integrated with the function structure of the separating sheet, so that the connecting process of the current collector and the separating sheet is cancelled, the cost is reduced, the production efficiency is improved, the hole positions can be prevented from being staggered due to the deviation of the separating sheet, and the sealing performance of the liquid channel is ensured.

Description

Technical Field

[0001] This application relates to the technical field of battery heat dissipation, and specifically proposes a heat exchange component, a battery module, and a carrier. Background Technology

[0002] Battery modules are core components of power battery systems. They are composed of multiple individual cells connected and mechanically fixed together, designed to provide higher voltage, capacity, and system stability. Furthermore, most battery modules also include heat exchange components to dissipate heat from the multiple individual cells.

[0003] In practical applications, heat exchange components generally include a liquid cooling plate, a liquid delivery pipeline, and a collector. The heat exchange medium flows to the collector through the liquid delivery pipeline. The collector is connected to the liquid cooling plate, and a partition is usually provided between the collector and the liquid cooling plate to make the flow path of the heat exchange medium in the liquid cooling plate S-shaped, thereby increasing the contact area between the heat exchange medium and the liquid cooling plate and improving the heat exchange efficiency.

[0004] However, the separate arrangement of the separator and the current collector requires additional connection steps, resulting in high production costs. Furthermore, the separator may shift during assembly with the current collector, making it difficult to align with the holes in the liquid cooling plate and potentially causing leakage. Utility Model Content

[0005] The purpose of this application is to solve at least some of the technical problems mentioned above, and this purpose is achieved through the following technical solutions:

[0006] In a first aspect, this application proposes a heat exchange assembly comprising a pipeline, a liquid cooling element, and a collector. The liquid cooling element has multiple flow channels; the collector includes a first interface end and a second interface end, the first interface end being connected to the pipeline, and the second interface end having multiple sealing portions and multiple opening portions, with the sealing portions and opening portions alternately arranged; the second interface end is directly or indirectly connected to the liquid cooling element, and the sealing portions block the flow channels, while the opening portions are connected to the flow channels.

[0007] In some embodiments, the heat exchange assembly further includes a connector, the current collector is made of plastic, the connector is injection molded to the second interface end, and the connector is welded to the liquid cooling component.

[0008] In some embodiments, the second interface end is provided with a slot, and the end of the liquid cooler protrudes to form a protrusion, which is inserted into the slot; or, the opening is provided with a protruding tube, which is inserted into the flow channel of the liquid cooler.

[0009] In some embodiments, the current collector further includes a third interface end; the heat exchange assembly further includes a connecting pipe that connects to the third interface ends of two adjacent current collectors.

[0010] In some embodiments, the current collector is connected to the peripheral wall of the connecting pipe, the peripheral wall of the connecting pipe is provided with an opening, the opening is in communication with the interior of the current collector; one end of the connecting pipe is provided with a latch, the other end is provided with a first slot, and the latches of two adjacent connecting pipes engage with the first slot.

[0011] In some embodiments, the manifold and the connecting pipe are integrally formed, or the manifold is provided with a hoop portion that fixes the connecting pipe.

[0012] In some embodiments, both ends of the connecting pipe are provided with second slots, and the manifold is provided with two locking parts, which respectively engage with the second slots of two adjacent connecting pipes.

[0013] In some embodiments, the liquid cooling component includes a liquid cooling plate having a plurality of parallel flow channels formed therein; or, the liquid cooling component includes a plurality of liquid cooling pipes, each of which has a flow channel formed inside.

[0014] Secondly, this application proposes a battery module that includes the heat exchange component of the first aspect.

[0015] Thirdly, this application proposes a vehicle that includes the battery module of the second aspect.

[0016] The technical solution proposed in this application has at least the following technical effects:

[0017] In this application, the current collector is provided with multiple sealing parts and multiple opening parts at the second interface end, which can replace the separator in the prior art. That is, the current collector itself integrates the functional structure of the separator, thereby eliminating the connection process between the current collector and the separator, reducing costs, improving production efficiency, and avoiding the misalignment of the holes caused by the separator displacement, thus ensuring the sealing of the liquid circuit. Attached Figure Description

[0018] To better integrate the content illustrated in the accompanying drawings with the description of the specific embodiments, a brief introduction to the drawings is provided below. It is understood that the accompanying drawings mentioned below are merely schematic illustrations of some embodiments of the relevant technical solutions and the technical solutions of this application. Without creative effort, those skilled in the art can create drawings illustrating other embodiments.

[0019] Specifically, the annotations for the accompanying drawings are as follows:

[0020] Figure 1 This is a schematic diagram of the overall structure of the heat exchange components described in some embodiments of this application;

[0021] Figure 2 This is a partial structural schematic diagram of the heat exchange components described in some embodiments of this application;

[0022] Figure 3 This is a cross-sectional schematic diagram of the heat exchange components described in some embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the structure of the current collector described in some embodiments of this application;

[0024] Figure 5 This is a schematic cross-sectional view of the connection between the current collector and the liquid cooler as described in some embodiments of this application;

[0025] Figure 6 This is a schematic cross-sectional view of another connection between the current collector and the liquid cooler as described in some embodiments of this application;

[0026] Figure 7 This is a schematic cross-sectional view of the connection between the current collector and the connecting pipe as described in some embodiments of this application;

[0027] Figure 8 This is a schematic cross-sectional view of another connection between the current collector and the connecting pipe as described in some embodiments of this application.

[0028] Specifically, the annotations for the figure marks in the instruction manual are as follows:

[0029] 10. Piping; 101. Liquid inlet; 102. Liquid outlet; 20. Liquid cooling component; 201. Flow channel; 202. Protrusion; 30. Current collector; 311. First current collector; 322. Second current collector; 301. First interface end; 302. Second interface end; 3021. Sealing part; 3022. Opening; 303. Insert tube; 304. Third interface end; 305. Snap-fit ​​part; 40. Connector; 50. Connecting tube; 501. Opening; 502. Tongue; 503. First slot; 504. Second slot; 60. Sealing ring. Detailed Implementation

[0030] To make the embodiments of this application clearer, they will be described below in conjunction with the accompanying drawings. It should be understood that the content mentioned below represents only some embodiments of this application, and not all embodiments are listed exhaustively. Therefore, other embodiments that can be obtained based on the following embodiments without any inventive effort fall within the protection scope of this application.

[0031] It should be understood that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to impose strict limitations on the technical solutions unless the context clearly indicates otherwise. For example, the use of "a," "an," and "the" to modify a feature does not preclude the possibility that the feature may be plural in other embodiments.

[0032] It should be understood that the terms "comprising," "including," and "having" are open-ended, indicating the presence of the stated features but not excluding the possibility of other features in the embodiment. Similarly, the use of terms such as "first," "second," etc., to describe multiple features only indicates the distinction between one feature and another, and such terms do not imply order or sequence unless explicitly stated in the context.

[0033] It should be understood that, unless the context clearly indicates otherwise, the terms "setup," "connection," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a direct connection or an indirect connection via a medium. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.

[0034] In addition, for ease of description, the text will use terms of spatial relative relationship to describe the position of one feature relative to another feature, such as "inner", "outer", "end", "side", "upper", "middle", "lower", "high", "low", "axial", "circumferential", "radial", "horizontal", "vertical", "first direction", "second direction", etc. It can be understood that the spatial relative relationship between two features should include other specific situations besides those shown in the accompanying drawings of the specification.

[0035] The embodiments of this application are described below with reference to the accompanying drawings. It can be understood that the technical features involved in the different embodiments described below can be combined with each other as long as they do not conflict with each other.

[0036] Firstly, referring to Figures 1 to 4 This application provides a heat exchange assembly comprising a pipe 10, a liquid cooler 20, and a collector 30. The liquid cooler 20 has multiple flow channels 201; the collector 30 includes a first interface end 301 and a second interface end 302. The first interface end 301 is connected to the pipe 10, and the second interface end 302 has multiple blocking portions 3021 and multiple opening portions 3022, which are alternately arranged. The second interface end 302 is directly or indirectly connected to the liquid cooler 20, and the blocking portions 3021 block the flow channels 201, while the opening portions 3022 communicate with the flow channels 201.

[0037] In this embodiment, refer to Figure 4 The current collector 30 is provided with multiple sealing parts 3021 and multiple opening parts 3022 at the second interface end 302, which can replace the separator in the prior art. That is, the current collector 30 itself integrates the functional structure of the separator, thereby eliminating the connection process between the current collector 30 and the separator, reducing costs, improving production efficiency, and avoiding the misalignment of the holes caused by the separator displacement, thus ensuring the sealing of the liquid circuit.

[0038] It should be noted that in the prior art, the current collector 30 and the liquid cooling component 20 are generally made of metal and can be directly welded together; however, the current collector 30 has a complex structure and is costly to form by machining.

[0039] In this embodiment, the current collector 30 can be made of plastic and integrally injection molded, which reduces manufacturing costs and makes it lighter, thereby reducing the weight of the battery module.

[0040] In particular, such as Figure 3 As shown, the sealing part 3021 and the opening part 3022 on the current collector 30 can guide the flow direction of the liquid path to form an S-shaped path and increase the heat exchange area.

[0041] In some embodiments, refer to Figure 2 The heat exchange assembly also includes a connector 40, the current collector 30 is made of plastic, the connector 40 is injection molded to the second interface end 302, and the connector 40 is welded to the liquid cooling component 20.

[0042] In this embodiment, a first implementation method is proposed to connect the second interface end 302 with the liquid cooling component 20. The connector 40 can be a metal ring structure, which can be sleeved on the end of the liquid cooling component 20 and welded to the liquid cooling component 20. The connector 40 can be pre-injected and connected to the current collector 30, thereby realizing the connection between the plastic current collector 30 and the metal liquid cooling component 20.

[0043] Specifically, the plastics involved in this application include, but are not limited to, polyethylene, polypropylene, and polyvinyl chloride.

[0044] In some embodiments, refer to Figure 5 The second interface end 302 is provided with a slot, and the end of the liquid cooling component 20 protrudes to form a protrusion 202, which is inserted into the slot.

[0045] In this embodiment, a second implementation is proposed to connect the second interface end 302 to the liquid cooling component 20. The protrusion 202 of the liquid cooling component 20 is inserted into a slot opened on the current collector 30, thereby completing the connection between the two. Specifically, a sealant can also be provided between the protrusion 202 and the slot for sealing.

[0046] In some embodiments, refer to Figure 6 The opening 3022 is provided with a protruding insertion tube 303, which is inserted into the flow channel 201 of the liquid cooling component 20.

[0047] In this embodiment, a third implementation method is proposed to connect the second interface end 302 with the liquid cooling component 20. The current collector 30 is provided with a protruding insertion tube 303 and inserted into the flow channel 201 of the liquid cooling component 20 to realize the connection between the two. Specifically, a sealant may be provided between the insertion tube 303 and the wall of the flow channel 201.

[0048] In some embodiments, refer to Figure 4 The collector 30 also includes a third interface end 304; the heat exchange assembly also includes a connecting pipe 50, which connects to the third interface ends 304 of two adjacent collectors 30.

[0049] In this embodiment, with Figure 1 Taking the structure shown as an example, the current collector 30 includes a first current collector 311 and a second current collector 322. The first current collector 311 includes a first interface end 301, a second interface end 302, and a third interface end 304. The second current collector 322 includes a second interface end 302 and a third interface end 304. That is, the pipeline 10 is only connected to the first current collector 311 and not to the second current collector 322. The first current collector 311 is connected to the pipeline 10 through the first interface end 301, and to a liquid cooling component 20 through the second interface end 302. It is also connected to the second current collector 322 through the third interface end 304 and the connecting pipe 50. The second current collector 322 is connected to a liquid cooling component 20 through the second interface end 302, and to an adjacent second current collector 322 or first current collector 311 through the third interface end 304 and the connecting pipe 50. The pipeline 10 has a liquid inlet end 101 and a liquid outlet end 102, thus realizing a complete loop.

[0050] In some embodiments, refer to Figure 7 The current collector 30 is connected to the peripheral wall of the connecting pipe 50. The peripheral wall of the connecting pipe 50 is provided with an opening 501, which communicates with the interior of the current collector 30. One end of the connecting pipe 50 is provided with a latch 502, and the other end is provided with a first slot 503. The latches 502 of two adjacent connecting pipes 50 are engaged with the first slot 503.

[0051] In this embodiment, an implementation method is proposed for connecting the current collector 30 to the connecting pipe 50 and for connecting two adjacent connecting pipes 50. Specifically, the latch 502 at one end of one connecting pipe 50 can engage with the first groove 503 at one end of the other connecting pipe 50, which facilitates assembly and ensures a secure connection. Furthermore, the current collector 30 is connected to the peripheral wall of the connecting pipe 50, and the peripheral wall of the connecting pipe 50 is provided with an opening 501 to achieve fluid passage communication. Specifically, a sealing ring 60 can be provided in the first groove 503.

[0052] In some embodiments, refer to Figure 7 The current collector 30 and the connecting pipe 50 are integrally formed, or the current collector 30 is provided with a hoop portion, which fixes the connecting pipe 50.

[0053] In this embodiment, a connection method between the current collector 30 and the connecting pipe 50 is further specified. The connecting pipe 50 can also be made of plastic and can be integrally injection molded with the current collector 30. In addition, the current collector 30 can also be provided with a hoop to fix the connecting pipe 50, and a sealant can be provided at the connection position between the two.

[0054] In some embodiments, refer to Figure 8 Both ends of the connecting pipe 50 are provided with second slots 504, and the collector 30 is provided with two locking parts 305. The two locking parts 305 are respectively locked with the second slots 504 of the two adjacent connecting pipes 50.

[0055] In this embodiment, another implementation is proposed for connecting the connecting pipe 50 to the current collector 30 and two adjacent connecting pipes 50. The current collector 30 is provided with two snap-fit ​​parts 305 so as to simultaneously snap the second snap-fit ​​slots 504 of the two connecting pipes 50. This can realize the connection of two adjacent connecting pipes 50 and the connection of the current collector 30 to the connecting pipe 50. The design is ingenious. In addition, the gap between two adjacent connecting pipes 50 is connected to the inside of the current collector 30.

[0056] In some embodiments, refer to Figure 2 The liquid cooling component 20 includes a liquid cooling plate with multiple parallel flow channels 201 formed therein. Specifically, the liquid cooling plate can be connected to a single cell in the battery module and can dissipate heat and support the single cell. Alternatively, in some embodiments not shown in the figures, the liquid cooling component 20 includes multiple liquid cooling pipes, each of which forms a flow channel 201. Optionally, the liquid cooling pipes can be disposed only between the openings 3022 of two current collectors 30. Of course, the liquid cooling pipes can also be disposed between the blocking portions 3021 of two current collectors 30, and the flow channels 201 formed by the liquid cooling pipes can be blocked by the blocking portions 3021.

[0057] Secondly, this application proposes a battery module that includes the heat exchange component of the first aspect.

[0058] In this embodiment, the battery module has all the technical effects of the heat exchange component. In addition, the battery module also includes multiple individual batteries and a housing, which is used to house the multiple individual batteries and the heat exchange component.

[0059] Thirdly, this application proposes a vehicle that includes the battery module of the second aspect.

[0060] In this embodiment, the vehicle also has all the technical effects of the heat exchange components. Optionally, the vehicle is a new energy vehicle.

[0061] In particular, the term "and / or" in this application should be understood as follows:

[0062] In the first case, the term “and / or” between the first subject and the second subject includes any of the following meanings: (1) only the first subject; (2) only the second subject; and (3) both the first subject and the second subject.

[0063] In the second case, the term "and / or" between the last two of three or more subjects means including at least any one of the subjects. For example, "first subject, second subject and / or third subject" has the same meaning as "first subject and / or second subject and / or third subject", specifically including the following combinations: (1) only the first subject; (2) only the second subject; (3) only the third subject; (4) first subject and second subject and no third subject; (5) first subject and third subject and no second subject; (6) second subject and third subject and no first subject; and (7) first subject, second subject and third subject;

[0064] Furthermore, the character " / " in this application indicates that the objects before and after it are in an "or" relationship.

[0065] Finally, although the embodiments of this application have been described above in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the concept of this application, and such modifications and variations all fall within the scope of protection of this application.

Claims

1. A heat exchange component, characterized in that, include: Pipeline (10); The liquid cooling component (20) has multiple flow channels (201); The current collector (30) includes a first interface end (301) and a second interface end (302). The first interface end (301) is connected to the pipeline (10). The second interface end (302) is provided with multiple blocking parts (3021) and multiple opening parts (3022). The blocking parts (3021) and the opening parts (3022) are alternately arranged. The second interface end (302) is directly or indirectly connected to the liquid cooling component (20). The blocking parts (3021) block the flow channel (201), and the opening parts (3022) are connected to the flow channel (201).

2. The heat exchange assembly according to claim 1, characterized in that, The heat exchange assembly also includes a connector (40), the current collector (30) is made of plastic, the connector (40) is injection molded to the second interface end (302), and the connector (40) is welded to the liquid cooling component (20).

3. The heat exchange assembly according to claim 1 or 2, characterized in that, The second interface end (302) is provided with a slot, and the end of the liquid cooling component (20) protrudes to form a protrusion (202), which is inserted into the slot; Alternatively, the opening (3022) may be provided with a protruding insertion tube (303), which is inserted into the flow channel (201) of the liquid cooling component (20).

4. The heat exchange assembly according to claim 1 or 2, characterized in that, The current collector (30) further includes a third interface end (304); the heat exchange assembly further includes a connecting pipe (50), which connects to the third interface ends (304) of two adjacent current collectors (30).

5. The heat exchange assembly according to claim 4, characterized in that, The current collector (30) is connected to the peripheral wall of the connecting pipe (50), and the peripheral wall of the connecting pipe (50) is provided with an opening (501), which communicates with the interior of the current collector (30). One end of the connecting pipe (50) is provided with a latch (502), and the other end is provided with a first slot (503). The latches (502) of two adjacent connecting pipes (50) are engaged with the first slot (503).

6. The heat exchange assembly according to claim 5, characterized in that, The current collector (30) and the connecting pipe (50) are integrally formed, or the current collector (30) is provided with a hoop portion, and the hoop portion fixes the connecting pipe (50).

7. The heat exchange assembly according to claim 4, characterized in that, Both ends of the connecting pipe (50) are provided with second slots (504), and the collector (30) is provided with two snap-fit ​​parts (305). The two snap-fit ​​parts (305) are respectively snapped into the second slots (504) of the two adjacent connecting pipes (50).

8. The heat exchange assembly according to claim 1 or 2, characterized in that, The liquid cooling component (20) includes a liquid cooling plate in which a plurality of parallel flow channels (201) are formed; Alternatively, the liquid cooling component may include multiple liquid cooling tubes, each of which forms a flow channel (201) inside.

9. A battery module, characterized in that, Includes the heat exchange component as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the battery module as described in claim 9.

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