CN219998371U - Lower box of liquid cooling battery and assembly of lower box and battery module - Google Patents
Lower box of liquid cooling battery and assembly of lower box and battery module Download PDFInfo
- Publication number
- CN219998371U CN219998371U CN202321236885.6U CN202321236885U CN219998371U CN 219998371 U CN219998371 U CN 219998371U CN 202321236885 U CN202321236885 U CN 202321236885U CN 219998371 U CN219998371 U CN 219998371U
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- liquid
- box body
- battery module
- battery
- baffle
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- 239000007788 liquid Substances 0.000 title claims abstract description 55
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 239000000110 cooling liquid Substances 0.000 claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 14
- 238000011900 installation process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The lower box body of the liquid cooling battery comprises a plurality of baffle plates which are arranged in parallel in a staggered manner, and an accommodating space of the battery module is surrounded between the baffle plates and the side wall of the box body. The assembly of the lower box body of the liquid-cooled battery and the battery module comprises the lower box body of the liquid-cooled battery, and the battery module is arranged in an accommodating space of the lower box body; the lower box body comprises supporting parts which are respectively positioned on two opposite side surfaces perpendicular to the baffle plate in the lower box body, and the supporting parts are in lap joint with the wire harness isolation plates of the battery modules. According to the lower box body of the liquid-cooled battery and the assembly of the lower box body and the battery module, the battery module is arranged in the accommodating space surrounded by the baffle plate and the inner wall of the box body, and after cooling liquid is injected, the cooling liquid can be in contact with multiple sides of the battery module for heat exchange, so that a cooling effect is achieved; meanwhile, the battery module is assembled and connected with the box body supporting part, so that the installation process of the battery module and the box body is simplified.
Description
Technical Field
The utility model relates to the field of energy storage, in particular to a lower box body of a liquid cooling battery and an assembly of the lower box body and a battery module.
Background
With the rapid development of new energy industry, new energy automobiles and lithium battery energy storage are widely applied; the battery pack capacity is continuously increased, and components such as a battery core, a relay and the like are in a high-temperature working environment for a long time under severe working conditions such as super fast charge, instantaneous high-rate discharge and the like; in order to solve the high-temperature working problem of the battery cell, two types of thermal management systems exist in the current battery pack: 1. a cooling system is assembled from the harmonica tube; 2. the whole liquid cooling plate is arranged at the bottom of the battery cell to form a cooling system. However, the two cooling systems can only perform heat transfer to one side of the battery cell, so that the function of cooling the battery cell is realized, but the cooling performance is limited due to the limited contact area. In addition, as the requirements for the safety performance of the battery are continuously increased, the requirements for controlling the thermal runaway are also continuously increased, and an external fire-fighting system is generally adopted to control the thermal runaway of the battery pack through a fire-fighting pipeline connection box body in the market.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the utility model provides a lower box of liquid cooling battery and assembly with battery module carries out the heat exchange to battery module from the multiaspect, promotes the simplification that the cooling effect compromise assembly process.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the lower box body of the liquid cooling battery comprises a plurality of baffle plates which are arranged in parallel in a staggered manner, and a plurality of accommodating spaces for accommodating cooling liquid and a battery module are formed between the baffle plates and the side wall of the box body in a surrounding manner. Further, the baffle is perpendicular to the bottom surface of the box body, one end of the baffle is perpendicularly connected with the side wall of the box body, and a first preset distance is arranged between the other end of the baffle and the side wall of the box body.
Further, the first preset distance is 8-12mm.
Further, the device also comprises a liquid inlet and a liquid outlet, wherein the liquid inlet and the liquid outlet are arranged on the side wall of the box body vertical to the baffle plate, the liquid inlet is arranged at the starting point of the baffle direction, and the liquid outlet is arranged at the end point of the baffle direction.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the assembly of the lower box body of the liquid-cooled battery and the battery module comprises the lower box body of the liquid-cooled battery, wherein the battery module is arranged in the accommodating space and immersed in cooling liquid; the lower box body comprises supporting parts, the supporting parts are respectively positioned on two opposite side surfaces of the lower box body, which are perpendicular to the baffle plate, and the supporting parts are in lap joint with the wire harness isolation plates of the battery modules. Further, the supporting part is a boss structure connected with the inner wall of the box body.
Further, the top end of the boss structure is greater than the battery module in the lower case.
Further, an electrode joint is arranged on the boss structure.
Further, a second preset distance is arranged between the battery module and the inner wall of any accommodating space.
Further, the second preset distance is 2-4mm.
The utility model has the beneficial effects that: providing a lower box body of a liquid-cooled battery and an assembly of the lower box body and a battery module, wherein an accommodating space is surrounded by a baffle plate and the inner wall of the box body to accommodate the battery module, and after cooling liquid is injected, the cooling liquid can be in contact with multiple surfaces of the battery module to perform heat exchange, so that a cooling effect is realized; meanwhile, the battery module is assembled and connected with the box body supporting part, so that the installation process of the battery module and the box body is simplified.
Drawings
FIG. 1 is a block diagram of a lower case of a liquid-cooled battery according to an embodiment of the present utility model;
FIG. 2 is a top view of a lower housing of a liquid-cooled battery according to an embodiment of the utility model;
FIG. 3 is a side view of a lower housing of a liquid-cooled battery according to an embodiment of the utility model;
fig. 4 is a top view of a lower case of a liquid-cooled battery and an assembly of the lower case and a battery module according to an embodiment of the present utility model;
description of the reference numerals:
1. a lower box body; 2. A battery module;
11. a baffle plate; 12. An accommodation space; 13. A liquid inlet; 14. A liquid outlet;
15. a support part; 16. An electrode joint;
21. wire harness isolation board.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, a lower case 1 of a liquid-cooled battery includes a plurality of baffle plates 11 arranged in parallel and staggered, and an accommodating space 12 of the battery module 2 is surrounded between the baffle plates 11 and between the baffle plates and the side walls of the case.
From the above description, the beneficial effects of the utility model are as follows: the battery module 2 is arranged by encircling the accommodating space 12 with the inner wall of the box body through the baffle plate 11, and after the cooling liquid is injected, the cooling liquid can be in contact with multiple surfaces of the battery module 2 for heat exchange, so that the cooling effect is realized.
Further, the baffle 11 is perpendicular to the bottom surface of the box body, one end of the baffle 11 is perpendicularly connected with the side wall of the box body, and a first preset distance is arranged between the other end of the baffle 11 and the side wall of the box body.
As is apparent from the above description, in order to simplify the flow path arrangement, one end of the baffle plate is closely connected to the side wall of the case, and the other end is spaced from the side wall of the case by a first predetermined distance, so that the baffle plate and the case are arranged in a single arch shape, and after the cooling liquid is injected, the cooling liquid flows along the single arch-shaped flow path to prevent backflow, thereby sufficiently cooling the battery module 2.
Further, the first preset distance is 8-12mm.
From the above description, the first preset distance is controlled to be 8-12mm, so that the coolant is prevented from flowing through the gap, and the cooling effect is reduced; preferably, the first preset distance is 10mm.
Further, the device also comprises a liquid inlet 13 and a liquid outlet 14, wherein the liquid inlet 13 and the liquid outlet 14 are arranged on the side wall of the box body vertical to the baffle plate 11, the liquid inlet 13 is arranged at the starting point of the baffle direction, and the liquid outlet 14 is arranged at the ending point of the baffle direction.
It can be seen from the above description that, for the balanced flow state, the liquid inlet 13 and the liquid outlet 14 are respectively provided with a start point and an end point of the flow deflection direction, so as to avoid the collision between the liquid inlet and the side wall of the baffle 11 or the side wall when the cooling liquid is injected or flows out, and meanwhile, the liquid inlet 13 and the liquid outlet 14 are arranged on the side wall of the box body of the vertical baffle 11, i.e. the liquid inlet direction and the liquid outlet direction are ensured to be consistent with the flowing direction of the cooling liquid.
The assembly of the lower box body 1 of the liquid-cooled battery and the battery module 2 comprises the lower box body 1 of any one of the liquid-cooled batteries, wherein the battery module is arranged in the accommodating space and immersed in cooling liquid; the lower case 1 includes supporting parts 15, the supporting parts 15 are respectively positioned at two opposite sides of the case perpendicular to the baffle plate 11, and the supporting parts 15 overlap with the harness isolation plates 21 of the battery module 2.
As is apparent from the above description, the case design support part 15 is used to overlap the harness isolation plate 21 of the battery module 2 for convenience of assembly, simplifying the installation process of the battery module 2 and the case.
Further, the supporting portion 15 is a boss structure connected to the inner wall of the box body.
As can be seen from the above description, the supporting portion 15 is designed as a boss structure connected to the inner wall of the case, which facilitates the manufacture of the entire lower case 1, and may be integrally molded by injection molding while providing a large installation space for the harness isolation plate 21 of the battery module 2.
Further, the height of the top end of the boss structure in the lower case 1 is greater than the height of the battery module 2.
It can be seen from the above description that, in order to enhance the cooling effect, the height of the top end of the boss structure in the lower case 1 is designed to be greater than the height of the body of the battery module 2, and after the assembly is completed, a certain space is left between the bottom of the battery module 2 and the bottom of the case, so that the cooling liquid exchanges heat with the bottom and the side surfaces of the battery module 2 at the same time, and the cooling effect is enhanced.
Further, an electrode joint 16 is arranged on the boss structure.
As is apparent from the above description, in order to facilitate connection of the battery module 2 to external power distribution equipment, the boss is provided with the electrode tabs 16 to connect the battery module 2 to the outside.
Further, a second preset distance is provided between the battery module 2 and the inner wall of any one of the accommodating spaces 12.
As can be seen from the above description, the second preset space is fixedly reserved between the battery module 2 and the accommodating space 12, so that the cooling liquid can exchange heat with the battery module 2.
Further, the second preset distance is 2-4mm.
From the above description, the second preset interval is controlled to be 2-4mm, so that the coolant is prevented from flowing through the gap, and the cooling effect is reduced; preferably, the second preset distance is 3mm.
The utility model provides a lower box body 1 of a liquid-cooled battery and an assembly of the lower box body and a battery module 2, which are mainly applied to the field of cooling of a mobile power supply, and are specifically described below with reference to embodiments.
The first embodiment of the utility model is as follows: referring to fig. 1 to 4, a lower case 1 of a liquid-cooled battery includes a plurality of baffle plates 11 arranged in parallel and staggered, and a plurality of accommodating spaces 12 for accommodating a cooling liquid and a battery module 2 are defined between the side walls of the case of the baffle plates 11.
That is, in this embodiment, the battery module 2 is disposed by surrounding the accommodating space 12 with the baffle plate 11 and the inner wall of the case, and after the cooling liquid is injected, the cooling liquid can be in contact with the multiple surfaces of the battery module 2 to perform heat exchange, thereby realizing the cooling effect.
The second embodiment of the utility model is as follows: referring to fig. 1 to 4, in the first embodiment, a baffle 11 is perpendicular to the bottom surface of the case, one end of the baffle 11 is perpendicularly connected to the side wall of the case, and a distance of 10mm is provided between the other end of the baffle 11 and the side wall of the case. The device also comprises a liquid inlet 13 and a liquid outlet 14, wherein the liquid inlet 13 and the liquid outlet 14 are arranged on the side wall of the box body of the vertical baffle 11, the liquid inlet 13 is arranged at the starting point of the baffle direction, and the liquid outlet 14 is arranged at the end point of the baffle direction.
That is, in this embodiment, in order to simplify the flow path arrangement, one end of the baffle is closely connected to the side wall of the case, and the other end of the baffle is spaced from the side wall of the case by a first preset distance, so that the baffle and the case are arranged in a single arch shape, and after the cooling liquid is injected, the cooling liquid flows along the single arch-shaped flow path to prevent backflow, thereby sufficiently cooling the battery module 2. Meanwhile, in order to balance the flow state, the liquid inlet 13 and the liquid outlet 14 are respectively provided with a start point and an end point of the flow deflection direction, and meanwhile, the liquid inlet 13 and the liquid outlet 14 are arranged on the side wall of the box body of the vertical flow deflection baffle 11, namely, the liquid inlet direction and the liquid outlet direction are ensured to be consistent with the flowing direction of the cooling liquid.
Wherein, whether the liquid inlet 13 and the liquid outlet 14 are positioned on the same side wall of the box body is related to the number of baffle plates 11 and the installation mode, when the number of the baffle plates 11 is singular, the single arched arrangement mode determines that the liquid outlet 14 and the liquid inlet 13 are positioned on the same side wall of the box body; when the number of the baffle plates 11 is two, the arrangement mode of a single arch determines that the liquid outlet 14 and the liquid inlet 13 are positioned on the opposite side walls of the box body. In this embodiment, the number of baffle plates 11 is 3, so that the liquid inlet 13 and the liquid outlet 14 are located on the same side wall of the box body.
Specifically, in order to facilitate smooth discharge of the cooling liquid, the battery module 2 is not placed in the accommodating space 12 where the liquid outlet 14 is located, and the distance between the baffle 11 and the inner wall of the box is reduced, and in this embodiment, the distance between the baffle 11 and the inner wall of the box in the accommodating space 12 where the liquid outlet 14 is located is 15mm.
The third embodiment of the utility model is as follows: referring to fig. 1 to 4, an assembly of a lower case 1 of a liquid-cooled battery and a battery module 2 includes the lower case 1 of any one of the above liquid-cooled batteries, and the battery module is disposed in a receiving space of the lower case and immersed in a cooling liquid; the lower case 1 comprises supporting parts 15, wherein the supporting parts 15 are respectively positioned on two opposite side surfaces of the case, which are perpendicular to the baffle plate 11, and the supporting parts 15 are overlapped with the wire harness isolation plates 21 of the battery modules 2; the supporting part 15 is a boss structure connected with the inner wall of the box body; the top of the boss structure is higher than the battery module 2 in the lower case 1, and the boss structure is provided with an electrode joint 16.
That is, in the present embodiment, in order to facilitate assembly, the supporting portion 15 is designed in the case for overlapping with the harness isolation plate 21 of the battery module 2, simplifying the installation process of the battery module 2 and the case; specifically, the supporting portion 15 is designed to be a boss structure connected with the inner wall of the box body, so that the whole lower box body 1 is convenient to manufacture, and injection molding integrated forming can be adopted, and a larger installation space and an installation space of a functional module, such as a motor joint, are provided for the wire harness isolation plate 21 of the battery module 2; meanwhile, in order to enhance the cooling effect, the top end of the boss structure is designed to be higher than the body of the battery module 2 in the lower box 1, and after the assembly is completed, a certain space is reserved between the bottom of the battery module 2 and the bottom of the box, so that cooling liquid and the bottom and the side surfaces of the battery module 2 are subjected to heat exchange simultaneously, and the cooling effect is enhanced.
The fourth embodiment of the utility model is as follows: referring to fig. 1 to 4, in the third embodiment, a 3mm distance is provided between the battery module 2 and the inner wall of any one of the accommodation spaces 12.
That is, in this embodiment, a predetermined space is fixedly reserved between the battery module 2 and the accommodating space 12, so that the cooling liquid and the battery module 2 can exchange heat conveniently. Specifically, according to experience, the second preset distance is controlled to be 3mm, so that the cooling liquid is prevented from flowing through the gap, the cooling effect is reduced optimally, and meanwhile, the production is convenient. In summary, according to the lower box body of the liquid-cooled battery and the assembly of the lower box body and the battery module, the battery module is arranged by surrounding the accommodating space with the inner wall of the box body through the baffle plate, and after cooling liquid is injected, the cooling liquid can be in contact with multiple surfaces of the battery module for heat exchange, so that a cooling effect is achieved; meanwhile, the battery module is assembled and connected with the box body supporting part, so that the installation process of the battery module and the box body is simplified.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (9)
1. The utility model provides a lower box of liquid cooling battery which characterized in that: the device comprises a plurality of parallel baffle plates which are arranged in a staggered manner, and a plurality of accommodating spaces for accommodating cooling liquid and a battery module are surrounded between the baffle plates and the side wall of the box body;
the baffle is perpendicular to the bottom surface of the box body, one end of the baffle is perpendicularly connected with the side wall of the box body, and a first preset distance is arranged between the other end of the baffle and the side wall of the box body.
2. The lower case of a liquid-cooled battery according to claim 1, wherein: the first preset distance is 8-12mm.
3. The lower case of a liquid-cooled battery according to claim 1, wherein: the liquid inlet and the liquid outlet are arranged on the side wall of the box body perpendicular to the baffle plate, the liquid inlet is arranged at the starting point of the baffle direction, and the liquid outlet is arranged at the end point of the baffle direction.
4. An assembly of a lower case of a liquid-cooled battery and a battery module, comprising the lower case of a liquid-cooled battery as set forth in any one of claims 1 to 3, characterized in that: the battery module is arranged in the accommodating space and immersed in the cooling liquid; the lower box body comprises supporting parts, the supporting parts are respectively positioned on two opposite side surfaces of the lower box body, which are perpendicular to the baffle plate, and the supporting parts are in lap joint with the wire harness isolation plates of the battery modules.
5. The assembly of a lower case and a battery module of a liquid-cooled battery according to claim 4, wherein: the supporting part is a boss structure connected with the inner wall of the box body.
6. The assembly of a lower case and a battery module of a liquid-cooled battery according to claim 5, wherein: the top of the boss structure is higher than the battery module in the lower box.
7. The assembly of a lower case and a battery module of a liquid-cooled battery according to claim 5, wherein: and an electrode joint is arranged on the boss structure.
8. The assembly of a lower case and a battery module of a liquid-cooled battery according to claim 4, wherein: a second preset interval is arranged between the battery module and the inner wall of any accommodating space.
9. The assembly of a lower case and a battery module of a liquid-cooled battery according to claim 8, wherein: the second preset distance is 2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321236885.6U CN219998371U (en) | 2023-05-22 | 2023-05-22 | Lower box of liquid cooling battery and assembly of lower box and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321236885.6U CN219998371U (en) | 2023-05-22 | 2023-05-22 | Lower box of liquid cooling battery and assembly of lower box and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219998371U true CN219998371U (en) | 2023-11-10 |
Family
ID=88610752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321236885.6U Active CN219998371U (en) | 2023-05-22 | 2023-05-22 | Lower box of liquid cooling battery and assembly of lower box and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219998371U (en) |
-
2023
- 2023-05-22 CN CN202321236885.6U patent/CN219998371U/en active Active
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