Lithium battery cooling heat exchanger

Abstract

The utility model relates to lithium battery cooling heat exchanger technical field discloses a lithium battery cooling heat exchanger, including the connecting plate, the back wall fixed connection of connecting plate has the heat exchange plate, the front end of connecting plate is provided with the water outlet, the front end of connecting plate is provided with the water inlet, the outer wall of heat exchange plate is provided with clamping assembly, the outer wall of connecting plate is provided with dismounting assembly, clamping assembly includes U type groove board, the inside of U type groove board places the heat conduction silica gel pad, the top fixed connection of U type groove board has fixed block, the recess is established in the inside of fixed block. In the utility model, through setting up U type groove board, heat conduction silica gel pad, fixed block, the spring's elasticity of U type groove board in clamping assembly is used, and the clamping plate is pushed closely and is attached heat conduction silica gel pad, realizes the clamping heat conduction silica gel pad of different thickness, and simultaneously facilitates the effect of quick replacement heat conduction silica gel pad.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cooling heat exchanger technology, and in particular to a lithium battery cooling heat exchanger. Background Technology

[0002] With the continuous advancement of science and technology, energy shortages and environmental degradation have become increasingly prominent, leading to more stringent requirements for the performance of lithium-ion batteries. In numerous application scenarios such as electric vehicles, solar energy storage systems, large-scale energy storage power stations, smartphones, and laptops, lithium-ion batteries must simultaneously meet performance standards of high capacity, high rate capability, high stability, high safety, and high consistency.

[0003] The cooling heat exchanger of a lithium battery is a key component used to regulate the operating temperature of the lithium battery. It dissipates excess heat generated during battery operation through the principle of heat exchange, or heats the battery at low temperatures to ensure that the battery is in the optimal operating temperature range (usually 20-40℃), thereby ensuring its performance, safety and service life.

[0004] While the above technologies have achieved temperature control during lithium battery operation, the thermally conductive silicone pads at the connection between the lithium battery and the heat exchanger will age and fail after long-term use. However, the existing replacement process is complicated, time-consuming, and inconvenient to use. Therefore, a lithium battery cooling heat exchanger is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a lithium battery cooling heat exchanger, which aims to solve the problem that the thermally conductive silicone pad at the connection between the lithium battery and the heat exchanger will age and fail after long-term use, but the existing replacement process is complicated and time-consuming.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a lithium battery cooling heat exchanger, including a connecting plate, a heat exchange plate fixedly connected to the rear wall of the connecting plate, a water outlet and a water inlet at the front end of the connecting plate, a clamping assembly on the outer wall of the heat exchange plate, and a disassembly assembly on the outer wall of the connecting plate.

[0007] The clamping assembly includes a U-shaped groove plate, inside which a thermally conductive silicone pad is placed. A fixing block is fixedly connected to the top of the U-shaped groove plate, and a groove is formed inside the fixing block. A clamping plate is elastically connected inside the groove through a spring.

[0008] As a further description of the above technical solution:

[0009] One end of the spring is fixedly connected to the inside of the groove, and the other end of the spring is fixedly connected to the rear wall of the clamping plate.

[0010] As a further description of the above technical solution:

[0011] The fixing blocks are provided in two sets, and the two sets of fixing blocks are mirror-distributed along the central axis of the U-shaped groove plate.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the thermally conductive silicone pad is attached to the outer wall of the clamping plate, and the rear wall of the U-shaped groove plate is fixedly connected to the outside of the connecting plate.

[0014] As a further description of the above technical solution:

[0015] The disassembly assembly includes a mounting plate with mounting holes on its outer wall, a snap-fit ​​plate fixedly connected to the rear wall of the mounting plate, a vertical plate fixedly connected to the outer wall of the connecting plate, a hole on the outer wall of the vertical plate, and a locking block elastically connected to the interior of the vertical plate by a return spring.

[0016] As a further description of the above technical solution:

[0017] One end of the reset spring is fixedly connected to the inside of the upright plate, and the other end of the reset spring is fixedly connected to the rear wall of the locking block.

[0018] As a further description of the above technical solution:

[0019] The card slots are provided on both sides of the card plate, and the outer wall of the card block is engaged with the inside of the card slot, and the outer wall of the card block is engaged with the inside of the hole.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the card block is slidably connected to the inside of the hole.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting a U-shaped groove plate, a thermally conductive silicone pad, and a fixing block, the U-shaped groove plate in the clamping assembly uses the elastic force of the spring to push the clamping plate to tightly fit the thermally conductive silicone pad, thereby achieving the effect of clamping thermally conductive silicone pads of different thicknesses, while facilitating quick replacement of the thermally conductive silicone pad.

[0024] 2. In this utility model, by setting an installation plate, installation holes, and a vertical plate, and utilizing the snap-fit ​​structure between the snap-fit ​​plate and the vertical plate, it is only necessary to align the position and apply appropriate pushing force to make the snap-fit ​​block complete under the action of the return spring. This reduces the difficulty of installation and maintenance, saves manpower and time costs, and improves the efficiency of the equipment in lithium battery replacement and maintenance. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a lithium battery cooling heat exchanger proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the clamping assembly of a lithium battery cooling heat exchanger proposed in this utility model;

[0027] Figure 3 This utility model proposes a lithium battery cooling heat exchanger. Figure 2 Enlarged structural diagram of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the disassembly assembly of a lithium battery cooling heat exchanger proposed in this utility model;

[0029] Figure 5 This utility model proposes a lithium battery cooling heat exchanger. Figure 4 A magnified structural diagram of point B in the middle.

[0030] Legend:

[0031] 1. Connecting plate; 2. Outlet; 3. Inlet; 4. Heat exchange plate; 5. Clamping assembly; 51. U-shaped groove plate; 52. Thermally conductive silicone pad; 53. Fixing block; 54. Groove; 55. Spring; 56. Clamping plate; 6. Disassembly assembly; 61. Mounting plate; 62. Mounting hole; 63. Vertical plate; 64. Hole; 65. Return spring; 66. Locking block; 67. Locking plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 The present invention provides an embodiment of a lithium battery cooling heat exchanger, comprising a connecting plate 1, a heat exchange plate 4 for exchanging heat with the lithium battery fixedly connected to the rear wall of the connecting plate 1, an outlet 2 for discharging the cooling medium after absorbing heat at the front end of the connecting plate 1, an inlet 3 for introducing the cooling medium to participate in heat exchange at the front end of the connecting plate 1, a clamping assembly 5 provided on the outer wall of the heat exchange plate 4, and a disassembly assembly 6 provided on the outer wall of the connecting plate 1.

[0034] The clamping assembly 5 includes a U-shaped groove plate 51, which is the main mounting structure of the clamping assembly 5. A thermally conductive silicone pad 52 for improving heat conduction efficiency is placed inside the U-shaped groove plate 51. A fixing block 53 for installing a spring 55 and a clamping plate 56 is fixedly connected to the top of the U-shaped groove plate 51. A groove 54 for providing installation space for the spring 55 is opened inside the fixing block 53. A clamping plate 56 for clamping thermally conductive silicone pads 52 of different thicknesses is elastically connected inside the groove 54 through the spring 55. One end of the spring 55 is fixedly connected inside the groove 54, and the other end of the spring 55 is fixedly connected to the rear wall of the clamping plate 56. The cooling medium enters the heat exchanger through the water inlet 3 at the front end of the connecting plate 1. When it flows through the area of ​​the heat exchange plate 4, it absorbs the heat generated by the lithium battery during operation by means of the heat exchange between the heat exchange plate 4 and the lithium battery. Meanwhile, to enhance heat transfer efficiency, the U-shaped groove plate 51 in the clamping assembly 5, through the elastic force of the spring 55 inside the fixing block 53, pushes the clamping plate 56 to tightly adhere to the thermally conductive silicone pad 52, ensuring close contact between the thermally conductive silicone pad 52 and the lithium battery surface, further improving the heat transfer effect from the lithium battery to the heat exchange plate 4. The cooling medium, after absorbing heat, flows out through the outlet 2, completing the heat dissipation cycle.

[0035] Reference Figures 3-5Two sets of fixing blocks 53 are provided, located on both sides of the top of the U-shaped channel plate 51. The two sets of fixing blocks 53 are mirror-distributed along the central axis of the U-shaped channel plate 51. The outer wall of the thermal conductive silicone pad 52 is attached to the outer wall of the clamping plate 56. The clamping plate 56 applies pressure to the thermal conductive silicone pad 52 through the attachment. The rear wall of the U-shaped channel plate 51 is fixedly connected to the outside of the connecting plate 1. The disassembly assembly 6 includes a mounting plate 61 for mounting a lithium battery. The outer wall of the mounting plate 61 has mounting holes 62 for fixing the lithium battery with screws. The rear wall of the mounting plate 61 is fixedly connected to a snap-fit ​​plate 67 for snapping with the upright plate 63. The outer wall of the connecting plate 1 is fixedly connected to the upright plate 63. The outer wall of the upright plate 63 has holes 64 that provide sliding space for the snap-fit ​​block 66 and facilitate the snap-fit ​​between the snap-fit ​​plate 67 and the upright plate 63. The interior of the upright plate 63 is connected by a return spring 6. The elastic connection of plate 5 includes a locking block 66. One end of a return spring 65 is fixedly connected to the inside of the upright plate 63, and the other end of the return spring 65 is fixedly connected to the rear wall of the locking block 66. The locking plate 67 has locking slots on both sides, which are used to cooperate with the locking block 66 to achieve locking. The outer wall of the locking block 66 is locked inside the locking slot, and the outer wall of the locking block 66 is locked inside the hole 64. The outer wall of the locking block 66 is slidably connected inside the hole 64. During installation, the lithium battery is first installed on the mounting plate 61 with screws. Then, the locking plate 67 on the rear wall of the mounting plate 61 is aligned with the upright plate 63. The locking slots on both sides of the locking plate 67 will squeeze the locking block 66 inside the upright plate 63, causing the locking block 66 to compress the return spring 65 and slide into the hole 64. When the locking plate 67 is in place, the return spring 65 resets and pushes the locking block 66 out of the hole 64 and locked in the locking slot, thus achieving a stable connection between the mounting plate 61 and the connecting plate 1. When disassembly is required, pull the mounting plate 61 outward. The front end of the locking block 66 is arc-shaped. Under the elasticity of the return spring 65, it automatically releases the locking with the slot, and the mounting plate 61 can be removed.

[0036] Working principle: During use, the cooling medium enters the heat exchanger through the inlet 3 at the front end of the connecting plate 1. As it flows through the area of ​​the heat exchange plate 4, it absorbs the heat generated by the lithium battery during operation through the heat exchange between the heat exchange plate 4 and the lithium battery. At the same time, to enhance the heat transfer efficiency, the U-shaped groove plate 51 in the clamping assembly 5, through the elastic force of the spring 55 inside the fixing block 53, pushes the clamping plate 56 to tightly adhere to the thermally conductive silicone pad 52, making the thermally conductive silicone pad 52 in close contact with the surface of the lithium battery, further improving the heat conduction effect from the lithium battery to the heat exchange plate 4. After absorbing heat, the cooling medium flows out through outlet 2, completing the heat dissipation cycle. During installation, first, the lithium battery is screwed onto the mounting plate 61. Then, the snap-fit ​​plate 67 on the rear wall of the mounting plate 61 is aligned with the upright plate 63. The slots on both sides of the snap-fit ​​plate 67 will press against the snap-fit ​​blocks 66 inside the upright plate 63, causing the snap-fit ​​blocks 66 to compress the return spring 65 and slide into the hole 64. When the snap-fit ​​plate 67 is in place, the return spring 65 returns to its original position, pushing the snap-fit ​​blocks 66 out of the hole 64 and snapping them into the slots, thus achieving a stable connection between the mounting plate 61 and the connecting plate 1. When disassembly is required, the mounting plate 61 is pulled outward. The front end of the snap-fit ​​blocks 66 is arc-shaped, and under the elasticity of the return spring 65, it automatically releases the snap-fit ​​from the slots, allowing the mounting plate 61 to be removed.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery cooling heat exchanger, comprising a connecting plate (1), characterized in that: A heat exchange plate (4) is fixedly connected to the rear wall of the connecting plate (1). A water outlet (2) is opened at the front end of the connecting plate (1). A water inlet (3) is opened at the front end of the connecting plate (1). A clamping assembly (5) is provided on the outer wall of the heat exchange plate (4). A disassembly assembly (6) is provided on the outer wall of the connecting plate (1). The clamping assembly (5) includes a U-shaped groove plate (51), a thermally conductive silicone pad (52) is placed inside the U-shaped groove plate (51), a fixing block (53) is fixedly connected to the top of the U-shaped groove plate (51), a groove (54) is provided inside the fixing block (53), and a clamping plate (56) is elastically connected inside the groove (54) by a spring (55).

2. The lithium battery cooling heat exchanger according to claim 1, characterized in that: One end of the spring (55) is fixedly connected to the inside of the groove (54), and the other end of the spring (55) is fixedly connected to the rear wall of the clamp (56).

3. A lithium battery cooling heat exchanger according to claim 1, characterized in that: The fixing blocks (53) are provided in two sets, and the two sets of fixing blocks (53) are mirror-distributed along the central axis of the U-shaped groove plate (51).

4. A lithium battery cooling heat exchanger according to claim 1, characterized in that: The outer wall of the thermally conductive silicone pad (52) is attached to the outer wall of the clamping plate (56), and the rear wall of the U-shaped groove plate (51) is fixedly connected to the outside of the connecting plate (1).

5. A lithium battery cooling heat exchanger according to claim 1, characterized in that: The disassembly assembly (6) includes a mounting plate (61), the outer wall of which has a mounting hole (62), a snap-fit ​​plate (67) is fixedly connected to the rear wall of the mounting plate (61), a vertical plate (63) is fixedly connected to the outer wall of the connecting plate (1), the outer wall of the vertical plate (63) has a hole (64), and a locking block (66) is elastically connected to the inside of the vertical plate (63) through a return spring (65).

6. A lithium battery cooling heat exchanger according to claim 5, characterized in that: One end of the reset spring (65) is fixedly connected to the inside of the upright plate (63), and the other end of the reset spring (65) is fixedly connected to the rear wall of the locking block (66).

7. A lithium battery cooling heat exchanger according to claim 5, characterized in that: The snap-fit ​​plate (67) has snap-fit ​​slots on both sides, and the outer wall of the snap-fit ​​block (66) snaps into the inside of the snap-fit ​​slot, and the outer wall of the snap-fit ​​block (66) snaps into the inside of the hole (64).

8. A lithium battery cooling heat exchanger according to claim 5, characterized in that: The outer wall of the card block (66) is slidably connected to the inside of the hole (64).

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