Double-row large-surface cooling module battery box

Abstract

The invention discloses a double-row large-area cooling module battery box which is characterized by comprising a box body, cooling battery units, a water inlet pipe and a water outlet pipe, the box body is provided with a mounting space, the plurality of cooling battery units are arranged side by side and form a battery module, and the battery module is mounted in the mounting space; the water inlet pipe and the water outlet pipe are wound on the outer wall of the battery module, a water inlet hole and a water outlet hole are formed in one surface of the box body, one end of the water inlet pipe penetrates through the water inlet hole, and one end of the water outlet pipe penetrates through the water outlet hole. Through the application of the invention, the double-row large-area cooling module battery box is provided, the cooling area is increased, the cooling efficiency is improved, the problem that the temperature difference between the adjacent battery cells and the top and the bottom of the battery module is too high is solved, and the service life of the battery box is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries and related technologies, and particularly to a double-row large-surface cooling module battery box. Background Art

[0002] The solution adopted in the prior art is that after the single cells are grouped into battery modules, the battery modules are placed on the liquid cooling plate, and the bottom cooling method is used to dissipate heat from the battery modules. Although the bottom cooling has a certain cooling effect, the cooling effect on the battery modules is limited, and the bottom cooling may exacerbate the temperature imbalance inside the battery, resulting in loss of cell capacity and lifespan. At the same time, a large temperature difference is formed between the top and bottom of the battery module, exacerbating the temperature imbalance inside the cells. The temperature imbalance also directly reduces the working safety and durability of the battery pack. Summary of the Invention

[0003] In view of this, to solve the above problems, the purpose of the present invention is to provide a double-row large-surface cooling module battery box, which includes:

[0004] A box body, a cooling battery unit, a water inlet pipe, and a water outlet pipe;

[0005] The box body has an installation space, and several of the cooling battery units are arranged side by side to form a group of battery modules, and the battery modules are installed in the installation space;

[0006] The water inlet pipe and the water outlet pipe are both wound around the outer wall of the battery module, and a water inlet hole and a water outlet hole are opened on one surface of the box body. One end of the water inlet pipe passes through the water inlet hole, and one end of the water outlet pipe passes through the water outlet hole;

[0007] Wherein, each of the cooling battery units includes: several battery cells, two fixing frames, several liquid cooling plates, and two end plates; several of the battery cells are arranged side by side in pairs, and one of the liquid cooling plates is installed between every four adjacent battery cells in the front and back. One end of each of the liquid cooling plates is provided with a liquid inlet hole and a liquid outlet hole. Several of the liquid inlet holes are all communicated with the water inlet pipe, and several of the liquid outlet holes are all communicated with the water outlet pipe. One of the fixing frames is installed on the upper surface of several of the battery cells, and the other fixing frame is installed on the lower surface of several of the battery cells. One of the end plates is installed on one surface of the two frontmost battery cells, and the other end plate is installed on one surface of the two rearmost battery cells.

[0008] In the above-mentioned double-row large-surface cooling module battery box, both of the two fixing frames are made of steel material.

[0009] In the above-mentioned double-row large-surface cooling module battery box, the water inlet pipe and the water outlet pipe are arranged parallel to each other up and down.

[0010] In the above-mentioned double-row large-surface cooling module battery box, a plurality of heat dissipation holes are provided on each of the end plates.

[0011] In the above-mentioned double-row large-surface cooling module battery box, each of the heat dissipation holes is arranged in a long strip shape.

[0012] In the above-mentioned double-row large-surface cooling module battery box, a plurality of heat dissipation fins are installed on the outer walls on both sides of the box body, and all the heat dissipation fins are arranged in the horizontal direction.

[0013] The positive effects of the above technical solution compared with the prior art are as follows:

[0014] By applying the present invention, a double-row large-surface cooling module battery box is provided, which increases the cooling area, improves the cooling efficiency, reduces the problem of excessive temperature difference between adjacent battery cells and between the top and bottom of the battery module, and prolongs the service life of the battery box. Description of the Drawings

[0015] Figure 1 It is an overall schematic diagram of a double-row large-surface cooling module battery box of the present invention.

[0016] Figure 2 It is a schematic diagram of a cooling battery unit of a double-row large-surface cooling module battery box of the present invention.

[0017] Figure 3 It is a schematic diagram of a liquid cooling plate of a double-row large-surface cooling module battery box of the present invention.

[0018] 1. Box body; 2. Cooling battery unit; 3. Water inlet pipe; 4. Water outlet pipe; 5. Water inlet hole; 6. Water outlet hole; 7. Battery cell; 8. Fixed frame; 9. Liquid cooling plate; 10. End plate; 11. Liquid inlet hole; 12. Liquid outlet hole; 13. Heat dissipation hole. Detailed Embodiments

[0019] The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not intended to limit the present invention.

[0020] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope in which the present invention can be implemented.

[0021] As Figures 1 to 3 shown, a double-row large-surface cooling module battery box of a preferred embodiment is shown, including: a box body 1, a cooling battery unit 2, a water inlet pipe 3, and a water outlet pipe 4.

[0022] The box body 1 has an installation space. Two cooling battery units 2 are arranged side by side to form a battery module, and the battery module is installed in the installation space; both the water inlet pipe 3 and the water outlet pipe 4 are wound around the outer wall of the battery module. An inlet hole 5 and an outlet hole 6 are opened on one surface of the box body 1. One end of the water inlet pipe 3 passes through the inlet hole 5, and one end of the water outlet pipe 4 passes through the outlet hole 6; wherein, each cooling battery unit 2 includes: a plurality of battery cells 7, two fixing frames 8, a plurality of liquid cooling plates 9, and two end plates 10; a plurality of battery cells 7 are arranged side by side in pairs, and a liquid cooling plate 9 is installed between every four adjacent battery cells 7 in the front and back. An inlet liquid hole 11 and an outlet liquid hole 12 are opened at one end of each liquid cooling plate 9. A plurality of inlet liquid holes 11 are all communicated with the water inlet pipe 3, and a plurality of outlet liquid holes 12 are all communicated with the water outlet pipe 4. One of the fixing frames 8 is installed on the upper surface of the plurality of battery cells 7, and the other fixing frame 8 is installed on the lower surface of the plurality of battery cells 7. One of the end plates 10 is installed on one surface of the two frontmost battery cells 7, and the other end plate 10 is installed on one surface of the two rearmost battery cells 7.

[0023] During the actual use process, coolant is injected into the water inlet pipe 3 through the inlet liquid hole 11. The coolant flows into the inlet liquid holes 11 of a plurality of liquid cooling plates 9 through the water inlet pipe 3, and then the coolant flows into the water outlet pipe 4 through the outlet liquid holes 12 of the plurality of liquid cooling plates 9, and finally flows out through the outlet hole 6, thereby cooling a plurality of battery cells 7.

[0024] The present invention further has the following implementation manners on the above basis:

[0025] Further, in a double-row large-surface cooling module battery box, wherein, both of the two fixing frames 8 are made of steel material. Further, the fixing frame 8 is made of steel material, which improves the heat dissipation effect and reduces the temperature difference between the top and bottom of the battery module.

[0026] Furthermore, a battery box with a double-row large-surface cooling module, wherein the water inlet pipe 3 and the water outlet pipe 4 are arranged parallel to each other vertically. Further, the water inlet pipe 3 and the water outlet pipe 4 are vertically parallel and arranged around the outer wall of the battery module, increasing the contact area with the battery module and improving the heat dissipation effect.

[0027] Furthermore, a battery box with a double-row large-surface cooling module, wherein a plurality of heat dissipation holes 13 are formed in each end plate 10. Further, the end plate 10 is provided with heat dissipation holes 13, improving the heat dissipation effect.

[0028] Furthermore, a battery box with a double-row large-surface cooling module, wherein each heat dissipation hole 13 is arranged in a long strip shape. Further, the heat dissipation holes 13 are arranged in a long strip shape, and the heat dissipation effect is better.

[0029] Furthermore, a battery box with a double-row large-surface cooling module, wherein a plurality of heat dissipation fins are installed on the outer walls on both sides of the box body 1, and the plurality of heat dissipation fins are all arranged in the horizontal direction. Further, a plurality of heat dissipation fins are installed on the outer walls on both sides of the box body 1, improving the heat dissipation effect.

[0030] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-row large-surface cooling module battery box, characterized in that, Including: A box body, a cooling battery unit, a water inlet pipe, and a water outlet pipe; The box body has an installation space, and a number of the cooling battery units are arranged side by side to form a battery module group, and the battery module group is installed in the installation space; Both the water inlet pipe and the water outlet pipe are wound around the outer wall of the battery module group. An inlet hole and an outlet hole are formed on one surface of the box body. One end of the water inlet pipe passes through the inlet hole, and one end of the water outlet pipe passes through the outlet hole; Wherein, each of the cooling battery units includes: a number of battery cells, two fixing frames, a number of liquid cooling plates, and two end plates; the number of battery cells are arranged side by side in pairs, and one of the liquid cooling plates is installed between every four adjacent battery cells in the front and back. Each end of each liquid cooling plate is provided with a liquid inlet hole and a liquid outlet hole. A number of the liquid inlet holes are all communicated with the water inlet pipe, and a number of the liquid outlet holes are all communicated with the water outlet pipe. One of the fixing frames is installed on the upper surface of the number of battery cells, and the other fixing frame is installed on the lower surface of the number of battery cells. One of the end plates is installed on one surface of the two frontmost battery cells, and the other end plate is installed on one surface of the two rearmost battery cells.

2. The double-row large-surface cooling module battery box according to claim 1, wherein Both of the two fixing frames are made of steel materials.

3. A double-row large-surface cooling module battery box according to claim 1, characterized in that, The water inlet pipe and the water outlet pipe are arranged parallel to each other vertically.

4. A double-row large-surface cooling module battery box according to claim 1, characterized in that, A number of heat dissipation holes are formed on each of the two end plates.

5. The battery box of a double-row large-surface cooling module according to claim 4, characterized in that, Each of the heat dissipation holes is arranged in a long strip shape.

6. The battery box of a double-row large-surface cooling module according to claim 1, characterized in that A number of heat dissipation fins are installed on the outer walls on both sides of the box body, and the number of heat dissipation fins are all arranged in the horizontal direction.

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