Liquid cooling plate structure of power lithium battery

Abstract

The utility model relates to the field of liquid cooling of power lithium batteries, in particular to a liquid cooling plate structure of a power lithium battery. The problems that in the prior art, a liquid cooling plate is single in structure, the needed cooling plate area is inconvenient to adjust according to the sizes and arrangement of various lithium batteries, certain limitation exists, the effect is poor when the liquid cooling plate is integrally used, and the liquid cooling plate cannot adapt to the sizes of different lithium batteries are solved. The liquid cooling plate comprises a liquid cooling plate body, and further comprises a first splicing assembly, a second splicing assembly and a dismounting assembly, through arrangement of the first splicing assembly, a plurality of liquid cooling plates can be spliced and assembled according to lithium batteries of different sizes, and then through the second splicing assembly, the liquid cooling plates can be disassembled and assembled according to the lithium batteries of different sizes. According to the liquid cooling plate assembly, the liquid cooling plates can be assembled in the other direction, the assembly effect of the liquid cooling plates is improved, and then through the disassembly assembly, a user can conveniently disassemble and separate the assembled liquid cooling plates.

Description

Technical Field

[0001] The utility model relates to the field of liquid cooling for power lithium batteries, in particular to a liquid cooling plate structure for power lithium batteries. Background Art

[0002] At present, various lithium battery solutions on the market are different, the required number of lithium batteries is different, and the structural wiring methods are different. When lithium batteries are operating, a large amount of heat is generated. If the heat cannot be transferred and dissipated as soon as possible, it will cause the local ambient temperature to gather too high, which will burn out the lithium batteries. In severe cases, the service life of the lithium batteries will be reduced. Therefore, a liquid cooling plate is provided to dissipate the heat generated by the lithium batteries to ensure that the lithium batteries are always at the most ideal working temperature. Moreover, during the use of the liquid cooling plate, the existing liquid cooling plates on the market have a single structure, and it is inconvenient to adjust the required liquid cooling plate area according to the size and layout of various lithium batteries, which has certain limitations. The overall effect of the liquid cooling plate during use is not good, and it cannot adapt to different lithium battery sizes. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In order to overcome the problems that the existing liquid cooling plates on the market have a single structure, it is inconvenient to adjust the required cooling plate area according to the size and layout of various lithium batteries, which has certain limitations, and the overall effect of the liquid cooling plate during use is not good, and it cannot adapt to different lithium battery sizes.

[0005] (2) Technical Solutions

[0006] The technical solution of the utility model is: a liquid cooling plate structure for power lithium batteries, which includes a liquid cooling plate body, and also includes a water inlet, a water outlet, a diversion pipe, a quick connector, a liquid cooling hole groove, a splicing component one, a splicing component two and a disassembly component. The inner cavity of the liquid cooling plate body is provided with a liquid cooling hole groove, and the liquid cooling hole groove is arranged in a winding manner in the liquid cooling plate body. The surface of the liquid cooling plate body is provided with a water inlet, and the surface of the liquid cooling plate body is provided with a water outlet. The surface of the water inlet and the water outlet is connected with a quick connector, and the surface of the quick connector is connected with a diversion pipe. The surface of the liquid cooling body is provided with a splicing component one, the surface of the liquid cooling plate body is provided with a splicing component two, and the surface of the liquid cooling plate body is provided with a disassembly component; the liquid cooling plate body adopts a laser welding process, so that the IP level of the welding part can reach 68; the quick connector adopts a standard connector for connection; the liquid cooling plate body is a component made of aluminum material; the quick connector is a metal quick connector; the outer shape of the liquid cooling plate body is regularly and evenly distributed; a plug is sleeved at the front end of the quick connector.

[0007] Preferably, by setting and splicing a component, the assembly of multiple liquid cooling plates can be carried out, and they can be assembled according to different sizes of lithium batteries, further improving the use effect of the device. Then, through the second splicing component, multiple liquid cooling plates can be assembled in another direction, improving the assembly effect between the liquid cooling plates and reducing the limitation of the assembly between the liquid cooling plates. Furthermore, through the disassembly component, it is convenient for the user to disassemble and separate the assembled liquid cooling plates, further improving the working efficiency of the assembly and disassembly of the liquid cooling plates.

[0008] Furthermore, the first splicing component includes a card slot, a connection block, a support rod, and an arc rod. A card slot is formed on the surface of the liquid cooling plate body. A connection block is installed on one side surface of the liquid cooling plate body. A support rod is installed in the groove formed on the surface of the connection block. An arc rod is slidably connected in the groove formed inside the support rod. One end of the arc rod penetrates through the connection block and extends to the outside of the connection block, thus facilitating the assembly of the liquid cooling plate body and enabling the liquid cooling plate body to adapt to different sizes of lithium batteries.

[0009] Furthermore, arc plates are symmetrically installed on the surface of the liquid cooling plate body. The arc plates are adapted to the arc rod, thus facilitating the position movement of the arc rod and enabling the arc rod to abut against the inside of the card slot, further improving the use effect of the device.

[0010] Furthermore, a compression spring is arranged in the groove formed inside the support rod. One end of the compression spring is connected to the support rod, and the other end of the compression spring is connected to the arc rod, thus facilitating the reset of the position of the arc rod and further facilitating the operation of the user.

[0011] Furthermore, the second splicing component includes a clamping block, a groove plate, a magnetic attraction block one, and a magnetic attraction block two. A clamping block is installed on the other side surface of the liquid cooling plate body. A groove plate is installed on the surface of the liquid cooling plate body. The groove plate is adapted to the clamping block. A magnetic attraction block one is installed inside the groove plate. A magnetic attraction block two is installed on one side surface of the clamping block, thus facilitating the assembly of the liquid cooling plate body in another direction and further improving the adaptation effect of the liquid cooling plate body.

[0012] Furthermore, the disassembly component includes a flexible plate, a hinge rod, and a disassembly rod. Flexible plates are symmetrically installed on the surface of the liquid cooling plate body. A hinge rod is rotatably connected in the groove formed on the surface of the flexible plate. A disassembly rod is hinged on the surface of the hinge rod. The disassembly rod is slidably connected in the card slot formed on the surface of the liquid cooling plate body, thus facilitating the user to disassemble the assembled liquid cooling plate body and further improving the working effect of the operation on the liquid cooling plate body.

[0013] Furthermore, a reset spring is arranged between the flexible plate and the liquid cooling plate body. One end of the reset spring is connected to the flexible plate, and the other end of the reset spring is connected to the liquid cooling plate body, so as to facilitate the reset process of the flexible plate and greatly improve the use effect of the device.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By setting a composite structure of a splicing component one, a splicing component two and a disassembly component to replace the original single structure, it is possible to facilitate the heat dissipation treatment of the lithium battery, avoid the situation that during use, due to the operation of the lithium battery, a large amount of heat cannot be transferred, resulting in a relatively high local environmental temperature, reducing the service life of the lithium battery or even burning out the lithium battery, and it is possible to conveniently assemble according to lithium batteries of different sizes, reduce the limitations between liquid cooling plates, so that different sizes of lithium batteries can be adapted, and further improve the use effect of the liquid cooling plate;

[0017] 2. Through the splicing component one, it is possible to assemble multiple liquid cooling plates and assemble them according to lithium batteries of different sizes, further improving the use effect of the device;

[0018] 3. Through the splicing component two, multiple liquid cooling plates can be assembled in another direction, improving the assembly effect between the liquid cooling plates and reducing the limitations of the assembly between the liquid cooling plates;

[0019] 4. Through the disassembly component, it is possible to facilitate the user to disassemble and separate the assembled liquid cooling plate, further improving the working efficiency of assembling and disassembling the liquid cooling plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is the first three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 Shown is the sectional structural schematic diagram of the liquid cooling plate body of the present utility model;

[0022] Figure 3 Shown is the three-dimensional structural schematic diagram of the support rod and the connecting block etc. of the present utility model;

[0023] Figure 4 Shown is the enlarged three-dimensional structural schematic diagram of the arc plate of the present utility model;

[0024] Figure 5 Shown is the sectional three-dimensional structural schematic diagram of the support rod of the present utility model;

[0025] Figure 6The figure shows a schematic three-dimensional structure diagram of the liquid cooling plate body and the diversion pipe of the present utility model;

[0026] Figure 7 The figure shows a schematic three-dimensional structure diagram of the arc-shaped rod and the arc-shaped plate of the present utility model;

[0027] Figure 8 The figure shows a schematic three-dimensional structure diagram of the flexible plate and the disassembly rod of the present utility model;

[0028] Figure 9 The figure shows a schematic three-dimensional structure diagram of the first magnetic attraction block and the second magnetic attraction block of the present utility model;

[0029] Figure 10 The figure shows a schematic three-dimensional structure diagram of the liquid cooling plate body of the present utility model.

[0030] Explanation of reference numerals in the drawings: 1 - liquid cooling plate body, 2 - water inlet, 3 - water outlet, 4 - diversion pipe, 5 - quick connector, 6 - liquid cooling hole groove, 7 - first splicing component, 8 - second splicing component, 9 - disassembly component, 701 - clamping groove, 702 - connecting block, 703 - support rod, 704 - arc-shaped rod, 705 - arc-shaped plate, 706 - compression spring, 801 - clamping block, 802 - groove plate, 803 - first magnetic attraction block, 804 - second magnetic attraction block, 901 - flexible plate, 902 - hinged rod, 903 - disassembly rod, 904 - return spring. Detailed implementation manners

[0031] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0032] Embodiment 1:

[0033] Please refer to Figures 1 - 10 , the present utility model provides an embodiment: a liquid cooling plate structure for a power lithium battery, including a liquid cooling plate body 1, and further including a water inlet 2, a water outlet 3, a diversion pipe 4, a quick connector 5, a liquid cooling hole groove 6, a first splicing component 7, a second splicing component 8 and a disassembly component 9. A liquid cooling hole groove 6 is opened in the inner cavity of the liquid cooling plate body 1, and the liquid cooling hole groove 6 is arranged in a meandering manner in the liquid cooling plate body 6. A water inlet 2 is opened on the surface of the liquid cooling plate body 1, and a water outlet 3 is opened on the surface of the liquid cooling plate body 1. A quick connector 5 is communicated with the surfaces of the water inlet 2 and the water outlet 3, and a diversion pipe 1 is communicated with the surface of the quick connector 5. A first splicing component 7 is arranged on the surface of the liquid cooling body 1, a second splicing component 8 is arranged on the surface of the liquid cooling plate body 7, and a disassembly component 9 is arranged on the surface of the liquid cooling plate body 7; the liquid cooling plate body 1 adopts a laser welding process, so that the IP level at the welding part can reach IP68; the quick connector 5 adopts a standard connector for connection; the liquid cooling plate body 1 is a component made of aluminum material; the quick connector 5 is a metal quick connector; the outer shape of the liquid cooling plate body 1 is regularly and evenly distributed; a plug is sleeved at the front end of the quick connector 5.

[0034] The splicing component 7 includes a card slot 701, a connecting block 702, a support rod 703, and an arc rod 704. A card slot 701 is provided on the surface of the liquid cooling plate body 1. A connecting block 702 is installed on one side surface of the liquid cooling plate body 1. A support rod 703 is installed in the groove provided on the surface of the connecting block 702. An arc rod 704 is slidably connected in the groove provided inside the support rod 703. One end of the arc rod 704 penetrates through the connecting block 702 and extends to the outside of the connecting block 702. Arc plates 705 are symmetrically installed on the surface of the liquid cooling plate body 1. The arc plates 705 are adapted to the arc rod 704. A compression spring 706 is provided in the groove provided inside the support rod 703. One end of the compression spring 706 is connected to the support rod 703, and the other end of the compression spring 706 is connected to the arc rod 704. The splicing component 8 includes a clamping block 801, a groove plate 802, a magnetic attraction block 803, and a magnetic attraction block 804. A clamping block 807 is installed on the other side surface of the liquid cooling plate body 1. A groove plate 802 is installed on the surface of the liquid cooling plate body 1. The groove plate 802 is adapted to the clamping block 807. A magnetic attraction block 803 is installed inside the groove plate 802. A magnetic attraction block 804 is installed on one side surface of the clamping block 807. Thus, the liquid cooling plate body 1 can be assembled in different directions, enabling the liquid cooling plate body 1 to be adapted to different sizes of lithium batteries, and further reducing the limitations of the liquid cooling plate body 1.

[0035] Embodiment 2:

[0036] Please refer to Figures 1 - 10 In this embodiment, the disassembly component 9 includes a flexible plate 901, a hinge rod 902, and a disassembly rod 903. Flexible plates 901 are symmetrically installed on the surface of the liquid cooling plate body 1. A hinge rod 902 is rotatably connected in the groove provided on the surface of the flexible plate 901. A disassembly rod 903 is hinged to the surface of the hinge rod 902. The disassembly rod 903 is slidably connected in the card slot 701 provided on the surface of the liquid cooling plate body 1. A return spring 904 is provided between the flexible plate 901 and the liquid cooling plate body 1. One end of the return spring 904 is connected to the flexible plate 901, and the other end of the return spring 904 is connected to the liquid cooling plate body 1. Thus, it is convenient for the user to disassemble the assembled liquid cooling plate body 1, and further improves the effect of the liquid cooling plate body 1 during use.

[0037] For the liquid cooling plate body 1 used in power lithium batteries, when a single liquid cooling plate body 1 is used, only the water inlet guide pipe 4 needs to be connected to the water inlet 2 on the liquid cooling plate body 1 by means of a quick connector 5, and the guide pipe 4 on the water outlet 3 is connected to the water outlet guide pipe 4 of the liquid cooling plate body 1. When the lithium battery works to a certain extent and the ambient temperature reaches the control temperature designed by the BMS, the water pump starts and the cooling fan turns on. A flowing water flow will appear inside the guide pipe 4, quickly taking away the heat generated by the lithium battery during operation;

[0038] When the occupied area of the multi-module lithium battery is relatively large, the liquid cooling plate body 1 of this patent can also be spliced in several unequal ways. When splicing, only need to align two liquid cooling plate bodies 1 and use the diversion pipe 4 to connect the water outlet of the No. 1 liquid cooling plate body 1 to the water inlet of the No. 2 liquid cooling plate body. Each connection port of this patent uses a metal quick connector 5, and a plugging seal sleeve is designed at the interface. The liquid cooling plate body 1 is made of aluminum material, with fast heat dissipation and strong thermal conductivity, which is convenient for the heat energy of the lithium battery to dissipate quickly. If it is necessary to strengthen the heat exchange between the heat energy of the lithium battery itself and the liquid cooling plate body 1, a silica gel pad with a strong thermal conductivity coefficient can also be added to the outer steel shell of the lithium battery to further improve the heat exchange efficiency.

[0039] Working process: When assembling the liquid cooling plate body 1, first insert the connecting block 702 on one liquid cooling plate body 1 into the card slot 701 opened on the surface of another liquid cooling plate body 1. During the process of inserting the connecting block 702 into the card slot 701 opened on the surface of the liquid cooling plate body 1, at this time, the arc-shaped plate 705 on another liquid cooling plate body 1 squeezes the arc-shaped rod 704, so that the arc-shaped rod 704 slides inside the support rod 703. During the process of the arc-shaped rod 704 sliding inside the support rod 703, the arc-shaped rod 704 squeezes the compression spring 706. At this time, the compression spring 706 deforms, and the compression spring 706 can facilitate the reset process of the position of the arc-shaped rod 704, avoiding the situation that the arc-shaped rod 704 cannot be reset during use. When the connecting block 702 is inserted into the inside of the card slot 701, at this time, the compression spring 706 drives the arc-shaped rod 704 to abut against the inside of the card slot 701, thus completing the assembly of the liquid cooling plate body 1. When assembling the liquid cooling plate body 1 in another direction, first insert the clamping block 801 on one liquid cooling plate body 1 into the groove plate 802 on another liquid cooling plate body 1. At this time, the clamping block 801 is magnetically attracted to the magnetic attraction block one 803 and the magnetic attraction block two 804 on the groove plate 802, so that the clamping block 801 is tightly clamped inside the groove plate 802, realizing the assembly of the liquid cooling plate body 1 in another direction, and further improving the use effect of the liquid cooling plate body 1;

[0040] When disassembling the liquid cooling plate body 1 in one of the directions, first press the flexible plate 901. Since the material of the flexible plate 901 is relatively soft, the flexible plate 901 can deform. The flexible plate 901 squeezes the return spring 904. At this time, the return spring 904 deforms, and the return spring 904 can assist the flexible plate 901 to be reset, further improving the use effect of the device. At this time, the flexible plate 901 drives the articulated rod 902 to push the disassembly rod 903 to move. During the movement of the disassembly rod 903, the disassembly rod 903 squeezes the arc-shaped rod 704. At this time, the arc-shaped rod 704 slides inside the support rod 703. At this time, the arc-shaped rod 704 is separated from the card slot 701. At this time, the user pulls the liquid cooling plate body 1, thus realizing the disassembly process of the liquid cooling plate body 1.

[0041] When disassembling the liquid cooling plate body 1 after assembly is completed, when the liquid cooling plate body 1 is in another direction, at this time, pull the clamping block 801 so that the magnetic attraction block two 804 on the clamping block 801 is separated from the magnetic attraction block one 803 inside the groove plate 802, thereby disassembling a plurality of liquid cooling plate bodies 1;

[0042] The above has described in detail the implementation manners of the present utility model in conjunction with the accompanying drawings. However, the present utility model is not limited to the above implementation manners. Within the scope of knowledge possessed by those skilled in the art, various changes can also be made without departing from the gist of the present utility model.

Claims

1. A liquid cooling plate structure for a power lithium battery, comprising a liquid cooling plate body (1); characterized in that: It also includes a water inlet (2), a water outlet (3), a diversion pipe (4), a quick connector (5), a liquid cooling hole groove (6), a splicing component one (7), a splicing component two (8) and a disassembly component (9). A liquid cooling hole groove (6) is formed in the inner cavity of the liquid cooling plate body (1). The liquid cooling hole groove (6) is arranged in a winding manner in the liquid cooling plate body (1). A water inlet (2) is formed on the surface of the liquid cooling plate body (1), and a water outlet (3) is formed on the surface of the liquid cooling plate body (1). A quick connector (5) is communicated with the surfaces of the water inlet (2) and the water outlet (3). A diversion pipe (4) is communicated with the surface of the quick connector (5). A splicing component one (7) is arranged on the surface of the liquid cooling plate body (1), a splicing component two (8) is arranged on the surface of the liquid cooling plate body (1), and a disassembly component (9) is arranged on the surface of the liquid cooling plate body (1).

2. The liquid cooling plate structure of a power lithium battery according to claim 1, characterized in that: The splicing component one (7) includes a clamping groove (701), a connecting block (702), a support rod (703), and an arc-shaped rod (704). A clamping groove (701) is formed on the surface of the liquid cooling plate body (1). A connecting block (702) is installed on one side surface of the liquid cooling plate body (1). A support rod (703) is installed in a groove formed on the surface of the connecting block (702). An arc-shaped rod (704) is slidably connected in a groove formed inside the support rod (703). One end of the arc-shaped rod (704) penetrates through the connecting block (702) and extends to the outside of the connecting block (702).

3. The liquid cooling plate structure of a power lithium battery according to claim 2, characterized in that: Arc-shaped plates (705) are symmetrically installed on the surface of the liquid cooling plate body (1), and the arc-shaped plates (705) are adapted to the arc-shaped rod (704).

4. The liquid cooling plate structure of a power lithium battery according to claim 3, wherein: A compression spring (706) is arranged in a groove formed inside the support rod (703). One end of the compression spring (706) is connected to the support rod (703), and the other end of the compression spring (706) is connected to the arc-shaped rod (704).

5. The liquid cooling plate structure of a power lithium battery according to claim 4, wherein: The splicing component two (8) includes a clamping block (801), a groove plate (802), a magnetic attraction block one (803), and a magnetic attraction block two (804). A clamping block (801) is installed on the other side surface of the liquid cooling plate body (1). A groove plate (802) is installed on the surface of the liquid cooling plate body (1). The groove plate (802) is adapted to the clamping block (801). A magnetic attraction block one (803) is installed inside the groove plate (802), and a magnetic attraction block two (804) is installed on one side surface of the clamping block (801).

6. The liquid cooling plate structure of a power lithium battery according to claim 5, characterized in that: The disassembly component (9) includes a flexible plate (901), a hinge rod (902), and a disassembly rod (903). Flexible plates (901) are symmetrically installed on the surface of the liquid cooling plate body (1). A hinge rod (902) is rotatably connected in a groove formed on the surface of the flexible plate (901). A disassembly rod (903) is hinged to the surface of the hinge rod (902). The disassembly rod (903) is slidably connected in the clamping groove (701) formed on the surface of the liquid cooling plate body (1).

7. The liquid cooling plate structure of a power lithium battery according to claim 6, characterized in that: A return spring (904) is provided between the flexible plate (901) and the liquid cooling plate body (1). One end of the return spring (904) is connected to the flexible plate (901), and the other end of the return spring (904) is connected to the liquid cooling plate body (1).

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