Structure for optimizing connection between cold plate and battery cell supporting beam

Abstract

The utility model discloses a structure for optimizing the connection between a cold plate and a battery cell support beam, which comprises a cold plate and a runner plate, one end of the cold plate is provided with a water-cooling joint structure connected with the cold plate, and two sides of the end face of the cold plate are respectively provided with a first battery cell support beam and a second battery cell support beam which are connected with the cold plate. The utility model has the beneficial effects that the cold plate and the battery cell support beam are integrated by adopting an integrated furnace brazing mode for connection, so that the problem of subsequent looseness is effectively solved, meanwhile, the battery cell support beam is made of an aluminum material and is consistent with the cold plate by adopting brazing, so that the problem of potential difference before different materials are avoided, and the service life of the battery cell support beam is prolonged. Therefore, the problem of potential corrosion is avoided, the cold plate does not need to be provided with through holes, and the total number of the through holes of the cold plate is reduced, so that the problem of poor airtightness of the whole battery pack is solved.

Description

Technical Field

[0001] This utility model relates to the field of cold plate support beam technology, specifically to an optimized structure for connecting the cold plate and the battery cell support beam. Background Technology

[0002] Existing cold plate heat exchangers involve first fabricating the cold plate, then drilling holes in the cold plate at the locations of the cell support beams, and finally securing the support beams with blind rivets. This structure suffers from the problem of rivets loosening and causing the cells to shift and wobble after prolonged use, leading to a decrease in the heat exchange efficiency of the cold plate. Furthermore, the cell support beams are typically made of hollow steel tubing, while the cold plate is made of aluminum, which is susceptible to galvanic corrosion. Additionally, some battery packs require an airtight seal to prevent corrosion of the cells from the external environment. However, the current structure necessitates drilling holes in the cold plate to secure the cell support beams, compromising the airtightness of the cells' internal structure. Utility Model Content

[0003] The purpose of this invention is to provide an optimized structure for connecting the cold plate and the cell support beam, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an optimized structure for connecting a cold plate and a cell support beam, characterized in that: it includes a cold plate and a flow channel plate, one end of the cold plate is provided with a water-cooling connector structure connected thereto, and a first cell support beam and a second cell support beam are respectively provided on both sides of the end face of the cold plate and connected thereto.

[0005] In a further optimized configuration, the cold plate is welded to the flow channel plate to form an integral heat exchange cold plate.

[0006] In a further optimized version, the water-cooled connector structure consists of a connector, two first connecting pipes, and two second connecting pipes, which are welded together.

[0007] In a further optimized configuration, the first cell support beam and the second cell support beam are of equal size and are respectively welded to both sides of the end face of the cold plate.

[0008] In a further optimized configuration, the cold plate, the first battery cell support beam, and the second battery cell support beam are all made of aluminum.

[0009] In a further optimization, both the first and second battery cell support beams are provided with multiple protrusions, and the height of the multiple protrusions is consistent with the thickness of the cold plate.

[0010] Beneficial effects

[0011] The optimized connection structure between the cold plate and the cell support beam provided by this utility model adopts an integrated furnace brazing method. The integrated furnace brazing makes the cold plate and the cell support beam a whole, effectively solving the problem of loosening later. At the same time, because the cell support beam is made of aluminum, which is the same material as the cold plate, the potential difference problem between different materials is avoided, thereby avoiding the problem of potential corrosion. The cold plate does not need to be drilled with through holes, reducing the overall number of holes in the cold plate, thereby reducing the problem of poor airtightness of the entire battery pack. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] Example

[0015] like Figure 1 As shown, an optimized structure for connecting the cold plate and the cell support beam includes a cold plate 1 and a flow channel plate 7. One end of the cold plate 1 is provided with a water-cooling connector structure connected thereto, and the two sides of the end face of the cold plate 1 are respectively provided with a first cell support beam 5 and a second cell support beam 6 connected thereto.

[0016] In this embodiment, the cold plate 1 is welded to the flow channel plate 7.

[0017] The water-cooled connector structure consists of connector 2, two first connecting pipes 3 and two second connecting pipes 4, which are welded together.

[0018] The first cell support beam 5 and the second cell support beam 6 are of equal size and are welded to both sides of the end face of the cold plate 1, respectively.

[0019] Cold plate 1, first cell support beam 5, and second cell support beam 6 are all made of aluminum.

[0020] Multiple protrusions are provided on both the first battery cell support beam 5 and the second battery cell support beam 6, and the height of the multiple protrusions is the same as the thickness of the cold plate 1.

[0021] The cells are connected using a furnace brazing method, and the cell support beams must be made of aluminum. This achieves the brazing process and avoids potential differences between different materials. The cell support beams need to be designed with small bosses for positioning. The height of the small bosses must be the same as the thickness of the plate, and the openings in the plate should be positioned to avoid the flow channels.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A structure for optimizing the connection between the cold plate and the cell support beam, characterized in that: Including cold plate (1) and flow channel plate (7), one end of the cold plate (1) is provided with a water cooling connector structure connected thereto, and the end face of the cold plate (1) is respectively provided with a first cell support beam (5) and a second cell support beam (6) connected thereto.

2. The structure of claim 1, wherein: The cold plate (1) and the flow channel plate (7) are welded.

3. The structure of claim 1, wherein: The water cooling connector structure is composed of a connector (2), two first connecting pipes (3) and two second connecting pipes (4), and the connector (2), the two first connecting pipes (3) and the two second connecting pipes (4) are welded.

4. The structure of claim 1, wherein: The first cell support beam (5) and the second cell support beam (6) are equal in size and are respectively welded to the two sides of the end face of the cold plate (1).

5. The structure of claim 1, wherein: The cold plate (1) and the first cell support beam (5) and the second cell support beam (6) are all made of aluminum material.

6. The structure of claim 1, wherein: A plurality of bosses are formed on the first cell support beam (5) and the second cell support beam (6), and the height of the plurality of bosses is consistent with the thickness of the cold plate (1).

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