Battery pack liquid cooling plate

Abstract

The utility model discloses a kind of battery pack liquid cooling plate, it is related to battery liquid cooling technical field, including the plate body of inside setting cooling pipeline, the plate body one end is provided with and the liquid inlet pipe and the liquid outlet pipe of cooling pipeline intercommunication, the two sides side edge of the plate body is respectively fixed with multiple limit protrusions, the two sides side edge of box body is provided with the limit slot for limit protrusion to be clamped, the two sides of the plate body and located above the two sides edge of box body are respectively provided with fixed block, the opposite side of two the fixed block is respectively provided with the pressure groove for the two sides edge of box body to be worn, adjusting assembly for adjusting the fixed block compression degree is arranged between the fixed block and the plate body, so that the pressure groove is abutted to the two sides edge of box body. The present application has the effect of improving installation efficiency.

Description

Technical Field

[0001] This application relates to the field of battery liquid cooling technology, and in particular to a battery pack liquid cooling plate. Background Technology

[0002] An energy storage cabinet is a device used to store electrical energy. It typically consists of battery packs, inverters, control chips, and other components. The battery packs are usually arranged at equal intervals within the cabinet. Since a large amount of heat is generated during the charging and discharging of the battery packs, a liquid cooling unit is installed inside the cabinet. A liquid cooling plate is fixed at the bottom of each battery pack, and liquid cooling pipes are installed inside the liquid cooling plate. The liquid cooling plate is then installed on the inner wall of the cabinet. The liquid cooling unit is connected to the liquid cooling pipes inside the liquid cooling plate through a pipe plug. The liquid cooling unit drives the coolant to circulate within the liquid cooling pipes, thereby achieving continuous heat dissipation for the battery packs.

[0003] Since the battery pack is composed of multiple cells connected in series, the usual method of fixing the battery pack to the liquid cooling plate is to arrange the multiple cells neatly and fix them on the upper surface of the liquid cooling plate, then cover the cells with a box, and open a row of screw holes on each of the four sides of the liquid cooling plate. Then, the box is fixed to the liquid cooling plate with bolts. However, the number of bolts is large, resulting in low installation efficiency. Therefore, this application proposes a new technical solution. Utility Model Content

[0004] To improve installation efficiency, this application provides a liquid cooling plate for a battery pack.

[0005] This application provides a liquid cooling plate for a battery pack, employing the following technical solution:

[0006] A liquid cooling plate for a battery pack includes a plate body with internal cooling pipes. One end of the plate body is provided with an inlet pipe and an outlet pipe communicating with the cooling pipes. Multiple limiting protrusions are fixed on both sides of the plate body. Limiting grooves for the limiting protrusions to engage are opened on both sides of the plate body. Fixing blocks are respectively provided on both sides of the plate body and above the two sides of the box body. Pressing grooves for the two sides of the box body to pass through are opened on the opposite side of the two fixing blocks. An adjusting component for adjusting the pressing degree of the fixing blocks is provided between the fixing blocks and the plate body, so that the pressing grooves abut against the sides of the box body.

[0007] Optionally, an adjustment groove is provided on the upper surface of the plate and below the fixing block. The adjustment assembly includes a spring and an adjustment screw. The spring is fixedly connected to the bottom of the adjustment groove. The bottom of the fixing block extends into the adjustment groove and abuts against the upper end of the spring. The adjustment screw is threaded longitudinally through the middle of the fixing block and is connected to the bottom of the adjustment groove.

[0008] Optionally, the upper surface of the plate is provided with a groove for the bottom of the power supply core to be embedded.

[0009] Optionally, an anti-collision pad is provided on the inner side of the groove.

[0010] Optionally, heat-conducting sheets are fixedly connected to both sides of the battery cell within the groove, and the heat-conducting sheets are attached to the side of the battery cell.

[0011] Optionally, a plurality of spacers are fixedly connected to the side of the heat-conducting sheet facing the battery cell. The spacers are arranged at equal intervals along the battery cell arrangement direction, and the spacers are located between two adjacent battery cells.

[0012] Optionally, both the inlet pipe and the outlet pipe can be detachably fitted with dust covers.

[0013] Optionally, the plate body is provided with hoisting holes on both sides to facilitate hoisting and transfer.

[0014] In summary, this application includes the following beneficial technical effects: after the battery cell is placed on the board, the housing is placed above the battery cell, so that the limiting protrusions are inserted into each limiting groove. Then, the pressing groove of the fixing block presses against the two sides of the housing. The adjusting component makes the housing and the board fit tightly together, thereby achieving fixation and improving installation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the separated state of the box and the plate in an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the structure of the fixing block in an embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Plate; 11. Limiting protrusion; 2. Fixing block; 21. Pressure groove; 3. Adjustment component; 4. Adjustment groove; 41. Spring; 42. Adjustment screw; 5. Embedded groove; 51. Anti-collision pad; 6. Heat-conducting plate; 7. Partition plate; 8. Dust cover; 9. Lifting hole. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0020] This application discloses a liquid cooling plate for a battery pack.

[0021] Reference Figure 1The battery pack liquid cooling plate includes a plate body 1 with internal cooling pipes. The cooling pipes can be arranged in a serpentine pattern as in the prior art. One end of the plate body 1 is provided with an inlet pipe and an outlet pipe for communicating with the cooling pipes. The inlet pipe is connected to one end of the cooling pipes, and the outlet pipe is connected to the other end of the cooling pipes, so that the cooling unit can circulate the coolant into the cooling pipes.

[0022] Reference Figure 2 and Figure 3 Multiple limiting protrusions 11 are integrally formed on the upper surface of each side of the plate 1, and the limiting protrusions 11 on each side are equidistantly arranged along the length of the plate 1. The lower surface of each side of the box is provided with limiting grooves for the limiting protrusions 11 to be inserted. On both sides of the plate 1 along the length of the box and above the sides of the box, there are horizontal fixing blocks 2 that can be detached. On the opposite side of the two fixing blocks 2 and at the lower edge, there are pressing grooves 21 for the sides of the box to pass through. The pressing grooves 21 are opened along the length of the fixing blocks 2. On the upper surface of the plate 1 and below the fixing blocks 2, there is an adjustment groove 4 along the longitudinal direction. The bottom of the fixing blocks 2 extends into the adjustment groove 4. An adjustment component 3 for adjusting the pressing degree of the fixing blocks 2 is provided between the fixing blocks 2 and the plate 1, so that the pressing groove 21 abuts against the side of the box.

[0023] It should be noted that the enclosure is existing technology. The enclosure is equipped with a BMS management system to realize the basic functions of the liquid-cooled battery pack. A sealing ring is set between the enclosure and the plate 1 to form a sealed space to prevent coolant leakage and external moisture or contaminants from entering the cell area.

[0024] With the above setup, after the battery cell is placed on the plate 1, the housing is placed above the battery cell, so that the limiting protrusions 11 are inserted into each limiting groove. Then, the pressing groove 21 of the fixing block 2 presses against the two sides of the housing, and the clamping degree between the fixing block 2 and the housing is adjusted by the adjusting component 3.

[0025] Reference Figure 3 The adjusting assembly 3 includes two springs 41 and an adjusting screw 42. The adjusting groove 4 is fixedly connected to the springs 41 at both ends. The bottom of the fixing block 2 can extend into the adjusting groove 4 and abut against the upper end of the springs 41. The adjusting screw 42 is threaded longitudinally through the middle of the fixing block 2. The lower end of the adjusting screw 42 is threaded to the bottom of the adjusting groove 4. Therefore, after the inner side of the pressing groove 21 abuts against the upper edge of the housing, the height of the fixing block 2 can be adjusted by rotating the adjusting screw 42, causing the bottom of the fixing block 2 to move through the adjusting groove 4, and the fixing block 2 to move downwards as a whole. This allows the pressing groove 21 to tightly press against the upper edge of the housing, ensuring that the lower edge of the housing abuts tightly against the upper surface of the plate 1. It should be noted that the height of the limiting protrusion 11 is less than the opening depth of the limiting groove.

[0026] The upper surface of the board 1 has a groove 5 for the bottom of the power supply core to be embedded, and an anti-collision pad 51 is glued to the inside of the groove 5 to protect the power supply core and prevent it from being bumped during installation.

[0027] Reference Figure 3 In another embodiment of this application, heat-conducting sheets 6 are fixedly connected to both sides of the battery cell in the groove 5. The heat-conducting sheets 6 are attached to the side of the battery cell, and multiple spacers 7 are integrally formed on the side of the heat-conducting sheets 6 facing the battery cell. The multiple spacers 7 are equidistantly distributed along the battery cell arrangement direction, so that the spacers 7 are located between two adjacent battery cells and are attached to the side of the battery cell, so that the spacers 7 on the two heat-conducting sheets 6 are aligned with each other, and a distance is left between the two aligned spacers 7.

[0028] Through the above configuration, the heat generated on the side of the battery cell is conducted to the plate 1 through the heat-conducting plates 6 on both sides, allowing the heat at the top of the battery cell to dissipate in a timely manner, reducing the temperature difference between the top and bottom of the battery cell, and improving temperature uniformity. Furthermore, the partition plate 7 creates a gap between adjacent battery cells, facilitating heat dissipation. In this embodiment, both the heat-conducting plate 6 and the partition plate 7 are made of a metal material with high thermal conductivity, such as copper or aluminum.

[0029] In existing technologies, battery cells are fixed by bundling multiple cells into a module using cable ties. End plates (not shown in the figure) are then tied to both ends of the module, and the end plates are fixed to the surface of the board 1 with bolts. Typically, multiple modules are arranged to form a cell matrix to achieve the fixation between the cells and the board 1. In this application, a heat-conducting sheet 6 and a spacer 7 are added. The heat-conducting sheet 6 can be first attached to the side of the cell, and then the heat-conducting sheet 6 can be bundled together with the cell using cable ties. Alternatively, the heat-conducting sheet 6 can be fixed to the surface of the board 1 with bolts.

[0030] Reference Figure 1 In another embodiment of this application, both the inlet pipe and the outlet pipe are detachably fitted with dust covers 8 to prevent foreign objects or dust from falling into the pipes during the transport of the plate 1 or the installation of the discharge core.

[0031] In another embodiment of this application, in order to facilitate the hoisting and relocation of the plate 1, two hoisting holes 9 are provided on both sides of the plate 1, so that the hoisting equipment can pass ropes through the hoisting holes 9 to hoist and relocate the plate 1.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid cooling plate for a battery pack, comprising a plate body (1) with internal cooling pipes, wherein one end of the plate body (1) is provided with an inlet pipe and an outlet pipe communicating with the cooling pipes, characterized in that: Multiple limiting protrusions (11) are fixed on both sides of the plate (1). Limiting grooves for the limiting protrusions (11) to be inserted are provided on both sides of the box. Fixing blocks (2) are respectively provided on both sides of the plate (1) and above the two sides of the box. Pressing grooves (21) for the two sides of the box to pass through are respectively provided on the opposite side of the two fixing blocks (2). An adjusting component (3) for adjusting the pressing degree of the fixing block (2) is provided between the fixing block (2) and the plate (1) so that the pressing groove (21) abuts against the side of the box.

2. The battery pack liquid cooling plate according to claim 1, characterized in that: An adjustment groove (4) is provided on the upper surface of the plate (1) and below the fixing block (2). The adjustment assembly (3) includes a spring (41) and an adjustment screw (42). The spring (41) is fixedly connected to the bottom of the adjustment groove (4). The bottom of the fixing block (2) extends into the adjustment groove (4) and abuts against the upper end of the spring (41). The adjustment screw (42) is threaded along the longitudinal direction through the middle of the fixing block (2) and is connected to the bottom of the adjustment groove (4).

3. The battery pack liquid cooling plate according to claim 1, characterized in that: The upper surface of the plate (1) is provided with a groove (5) into which the bottom of the power supply core is embedded.

4. The battery pack liquid cooling plate according to claim 3, characterized in that: An anti-collision pad (51) is provided on the inner side of the groove (5).

5. The battery pack liquid cooling plate according to claim 4, characterized in that: Heat-conducting plates (6) are fixedly connected to both sides of the battery cell in the groove (5), and the heat-conducting plates (6) are attached to the side of the battery cell.

6. The battery pack liquid cooling plate according to claim 5, characterized in that: The heat-conducting sheet (6) is fixedly connected to a plurality of spacers (7) on the side facing the battery cell. The plurality of spacers (7) are arranged at equal intervals along the battery cell arrangement direction, and the spacers (7) are located between two adjacent battery cells.

7. The battery pack liquid cooling plate according to claim 1, characterized in that: Both the inlet pipe and the outlet pipe are detachably fitted with dust covers (8).

8. The battery pack liquid cooling plate according to claim 1, characterized in that: The plate (1) has hoisting holes (9) on both sides to facilitate hoisting and transfer.

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