CN215816124U - Battery box and battery package - Google Patents
Battery box and battery package Download PDFInfo
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- CN215816124U CN215816124U CN202121509686.9U CN202121509686U CN215816124U CN 215816124 U CN215816124 U CN 215816124U CN 202121509686 U CN202121509686 U CN 202121509686U CN 215816124 U CN215816124 U CN 215816124U
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- liquid cooling
- box body
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- box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application relates to a battery box and a battery pack. The battery box body is provided with a liquid cooling part, and the liquid cooling part is used for corresponding to the battery module arranged in the box body; the liquid cooling portion comprises a liquid cooling structure integrally formed with the box body, the liquid cooling structure comprises a liquid cooling runner, and the liquid cooling runner is communicated with a liquid inlet and a liquid outlet formed in the box body. The scheme that this application provided through setting up box and liquid cooling structure integrated into one piece, has reduced the connecting piece between box and the liquid cooling structure, has strengthened the structural strength of box and liquid cooling structure, makes the difficult deformation problem that leads to because of the difference in strength of liquid cooling structure appear.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery box body and a battery pack.
Background
In order to carry out thermal management on the power battery, a liquid cooling plate is required to be arranged in the battery box body so as to provide a proper working temperature for the power battery.
In the related technology, the battery box body is mainly formed by combining a plurality of sub-parts in a welding mode, an adhesion mode and the like, and then the liquid cooling plate is installed on the battery box body. The number of the sub-parts is large, the strength of the battery box body is poor, the manufacturing process of the battery box body is multiple in steps, and the production time of the battery box body is long; in addition, the liquid cooling plate in the related art has poor strength and is easy to deform, and the problems of non-uniform flow field and poor heat conduction can occur after deformation.
SUMMERY OF THE UTILITY MODEL
In order to solve or partially solve the problems existing in the related art, the application provides a battery box and a battery pack, which can enhance the structural strength of the box and a liquid cooling structure.
The first aspect of the application provides a battery box body, wherein the box body is provided with a liquid cooling part, and the liquid cooling part is used for corresponding to a battery module arranged in the box body;
the liquid cooling portion comprises a liquid cooling structure integrally formed with the box body, the liquid cooling structure comprises a liquid cooling runner, and the liquid cooling runner is communicated with a liquid inlet and a liquid outlet formed in the box body.
In one embodiment, the liquid cooling portion is provided with a liquid cooling accommodating groove, the liquid cooling accommodating groove is provided with a first reinforcing structure, the first reinforcing structure comprises a plurality of reinforcing beams which are arranged in the liquid cooling accommodating groove in an interlaced and spaced mode, and two ends of each reinforcing beam are connected to the side wall of the liquid cooling accommodating groove;
the bottom of the stiffening beam is connected with the bottom of the liquid cooling accommodating groove.
In one embodiment, the reinforcing beam is integrally formed with the tank and the liquid-cooled structure.
In one embodiment, the plurality of reinforcing beams are arranged along the transverse direction and the longitudinal direction of the liquid cooling part, a plurality of liquid cooling subareas are defined in the liquid cooling part, and the plurality of liquid cooling subareas correspond to the plurality of battery modules arranged in the box body in a one-to-one manner.
In one embodiment, the liquid cooling device further comprises a box body upper cover arranged above the liquid cooling part, and the reinforcing beam is supported on the box body upper cover.
In one embodiment, the box body is provided with a second reinforcing structure, the second reinforcing structure comprises a plurality of reinforcing ribs formed on the peripheral wall of the box body, and the plurality of reinforcing ribs extend along the height direction of the box body and are arranged at intervals along the width direction and the length direction of the box body.
In one embodiment, the box body is configured as a lower box body of the battery pack, the battery pack is further provided with an upper box body assembled on the lower box body, the edge of an opening on the upper side of the box body extends outwards to form a flange, and a box body mounting part is arranged on the flange.
In one embodiment, the first reinforcing structure and the second reinforcing structure are integrally formed with the box body.
In one embodiment, the integral molding comprises integral die casting.
A second aspect of the present application provides a battery pack including the battery case as described above.
The technical scheme provided by the application can comprise the following beneficial effects:
according to the battery box body provided by the application, the box body is provided with the liquid cooling part, and the liquid cooling part is used for corresponding to the battery module arranged in the box body; the liquid cooling portion comprises a liquid cooling structure integrally formed with the box body, the liquid cooling structure comprises a liquid cooling runner, and the liquid cooling runner is communicated with a liquid inlet and a liquid outlet formed in the box body. Through setting up box and liquid cooling structure integrated into one piece, reduced the connecting piece between box and the liquid cooling structure, strengthened the structural strength of box and liquid cooling structure, make the difficult deformation problem that leads to because of the intensity difference of appearing of liquid cooling structure.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic structural diagram of a battery case according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another view angle of the battery case according to the embodiment of the present application.
Reference numerals:
a battery case 10; a case 100; a liquid cooling structure 200; a reinforcing beam 300; a second reinforcing structure 400; mounting points 110; a mounting point 120; a liquid inlet 101; a liquid outlet 102; a liquid cooling flow passage 210; the liquid cooling receiving tank 201.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the related technology, the battery box body is mainly formed by combining a plurality of sub-parts in a welding mode, an adhesion mode and the like, and then the liquid cooling plate is installed on the battery box body. The number of the sub-parts is large, the strength of the battery box body is poor, the manufacturing process of the battery box body is multiple in steps, and the production time of the battery box body is long; in addition, the liquid cooling plate in the related art has poor strength and is easy to deform, and the problems of non-uniform flow field and poor heat conduction can occur after deformation. The application provides a battery box, this battery box can strengthen the structural strength of box and liquid cooling structure.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a battery case according to an embodiment of the present application.
Referring to fig. 1, the present embodiment provides a battery case 10, wherein the case 100 is provided with a liquid cooling portion, and the liquid cooling portion is used for corresponding to a battery module installed in the case 100; the liquid cooling portion includes a liquid cooling structure 200 integrally formed with the box 100, and the liquid cooling structure 200 includes a liquid cooling runner 210, and the liquid cooling runner 210 is communicated with the liquid inlet 101 and the liquid outlet 102 formed in the box 100.
As can be seen from this embodiment, by integrally forming the tank 100 and the liquid cooling structure 200, the number of connecting members between the tank 100 and the liquid cooling structure 200 is reduced, the production cost is saved, the structural strength of the tank 100 and the liquid cooling structure 200 is enhanced, and the liquid cooling structure 200 is not prone to deformation caused by poor strength; meanwhile, installation steps between the box body 100 and the liquid cooling structure 200 are reduced, production time is reduced, and production efficiency is improved.
The liquid cooling portion is arranged corresponding to the battery module, so that the battery module can be conveniently mounted on the box body 100 to dissipate heat. Further, in order to improve the heat dissipation efficiency of the liquid cooling structure 200, the liquid cooling structure 200 includes a plurality of liquid cooling channels 210 for flowing a cooling liquid, and the cooling liquid in the liquid cooling channels 210 can be added or reduced through the liquid inlet 101 and the liquid outlet 102.
In some embodiments, the plurality of liquid cooling channels 210 are distributed in an S-shape to increase the effective surface area for heat exchange between the liquid cooling structure 200 and the battery module.
In some embodiments, the tank 100 and the liquid cooling structure 200 may be integrally formed, for example, by die casting, by injection molding the liquid cooling structure 200 into the tank 100, or by integrally forming the tank 100 and the liquid cooling structure 200, which is not limited herein. Through box 100 and liquid cooling structure 200 integrated into one piece, effectively reduced the weight of battery box 10, reduced the complexity of installation, reduced production time.
In some embodiments, the tank 100 and the liquid cooling structure 200 may be assembled by a profile or a stamping and welding method, but it is difficult to achieve the effects of reducing weight, reducing system complexity, and reducing production time.
In some embodiments, the liquid cooling portion is provided with a liquid cooling container 201, the liquid cooling container 201 is provided with a first reinforcing structure, the first reinforcing structure comprises a plurality of reinforcing beams 300 arranged in the liquid cooling container 201 in an interlaced and spaced manner, and two ends of the reinforcing beams 300 are connected to the side wall of the liquid cooling container 201; the bottom of the reinforcing beam 300 is connected to the bottom of the liquid cooling container 201. The plurality of reinforcing beams 300 are arranged in the liquid cooling accommodating groove 201 in an interlaced and spaced manner, the interlaced parts of the plurality of reinforcing beams 300 can have stronger supporting force, and the bearing capacity of the upper cover of the box body above the liquid cooling accommodating groove 201 can be effectively increased; meanwhile, the reinforcing beam 300 enhances the connection strength between the side wall and the bottom of the liquid cooling accommodating tank 201, and further, enhances the structural strength of the liquid cooling accommodating tank 201; the load that liquid cooling storage tank 201 bore can be decomposed through many stiffening beams 300 transmission, effectively prevents liquid cooling structure 200 and warp, has avoided the uneven and poor problem of conducting heat of flow field that liquid cooling structure 200 warp and leads to.
In the present embodiment, in order to further enhance the structural strength of the reinforcement beam 300, the reinforcement beam 300 is configured as a structural reinforcement having a multi-layer structure. In some embodiments, the reinforcement beam 300 is configured as a structural reinforcement having a two-layer structure, and in order to reduce stress concentration at the intersection portion between the plurality of reinforcement beams 300, the two-layer structure on the structural reinforcement is spaced apart by a certain distance, and preferably, the two-layer structure is disposed parallel to each other. In some embodiments, the two-layer structure is disposed in a sheet shape to reduce the space occupied by the liquid cooling accommodating tank 201, so as to arrange more liquid cooling flow channels 210.
In this embodiment, in order to reduce the usage of the connecting members among the reinforcing beam 300, the tank 100, and the liquid cooling structure 200 and enhance the structural strength of the three, the reinforcing beam 300, the tank 100, and the liquid cooling structure 200 are integrally formed, and similarly, the reinforcing beam 300, the tank 100, and the liquid cooling structure 200 are integrally formed, for example, the reinforcing beam 300, the tank 100, and the liquid cooling structure 200 are integrally die-cast, and other integrally formed methods are not repeated in this application.
In some embodiments, the plurality of reinforcing beams 300 are arranged in the transverse and longitudinal directions of the liquid cooling part, where a plurality of liquid cooling partitions are defined, in one-to-one correspondence with the plurality of battery modules mounted in the case 100. The stiffening beam 300 comprises cross beams transversely arranged along the liquid cooling portion and longitudinal beams longitudinally arranged along the liquid cooling portion, the cross beams and the longitudinal beams are arranged in the liquid cooling accommodating groove 201 in an interlaced mode, the liquid cooling accommodating groove 201 is divided into a plurality of liquid cooling subareas by the cross beams and the longitudinal beams, and each liquid cooling subarea corresponds to one battery module and is used for cooling the corresponding battery module.
In some embodiments, a top cover is provided over the liquid cooling portion, and the stiffening beam 300 is supported on the top cover. The downside of stiffening beam 300 is connected with the tank bottom of liquid cooling storage tank 201, and stiffening beam 300 upside supports in the upper cover, has strengthened the bearing capacity and the intensity of upper cover, can effectively avoid battery box 10 to lead to the electrically conductive part in the box 100 to receive the damage because of the artificial trample.
Fig. 2 is a schematic structural diagram of another view angle of the battery case according to the embodiment of the present application.
Referring to fig. 2, in some embodiments, the box 100 is provided with a second reinforcing structure 400, and the second reinforcing structure 400 includes a plurality of ribs formed on the outer circumferential wall of the box 100, the plurality of ribs extending along the height direction of the box 100 and being spaced apart along the width and length directions of the box 100. In this embodiment, in order to reduce the usage of the connecting members between the second reinforcing structure 400 and the box 100 and enhance the structural strength of the two, the second reinforcing structure 400 and the box 100 are integrally formed, and similarly, a plurality of integrally forming methods are provided between the second reinforcing structure 400 and the box 100, which is not described in detail herein.
In some embodiments, the reinforcing bar is wedge-shaped in cross-section. The reinforcing rib with the wedge-shaped cross section has better structural stability and stronger supporting capacity, and further the structural strength of the lower box body 100 can be greatly improved.
In this embodiment, the battery pack includes box and lower box, goes up box and box down and inject the accommodation space that is used for holding the battery module jointly, and wherein, liquid cooling structure 200 integrated into one piece is on the box down.
In this embodiment, the box 100 is configured as a lower box of the battery pack, the battery pack is further provided with an upper box assembled on the lower box, an opening edge on the upper side of the box 100 extends outwards to form a flange, a box mounting portion is arranged on the flange, the box mounting portion includes an upper box mounting point and a mounting point, the mounting point 110 is used for being connected with the upper box, and the mounting point is used for fixing the battery box on an external supporting component or a bearing component. In some embodiments, the mounting point and the mounting point may include a connecting hole provided in the flange, and the lower box body is connected to the upper box body or mounted through the connecting hole. In some embodiments, the mounting points and the mounting points are multiple and uniformly arranged on the flange, wherein the mounting points can be arranged on the flange close to one side inside the battery box body, and the mounting points can be arranged on the flange far away from one side inside the battery box body.
In this embodiment, the reinforcing rib of the second reinforcing structure 400 can be connected to the outer side wall of the box body and the flange, and can reinforce the flange, thereby enhancing the connection strength of the mounting point 110 and the mounting point, and further enhancing the overall structural strength of the battery box body.
The battery box body of the embodiment of the application is introduced above, and correspondingly, the application also provides a battery pack which comprises the battery box body of the embodiment.
The battery box body comprises a box body 100, wherein the box body 100 is provided with a liquid cooling part, and the liquid cooling part is used for corresponding to a battery module arranged in the box body 100; the liquid cooling part comprises a liquid cooling structure 200 integrally formed with the box body 100, the liquid cooling structure 200 comprises a liquid cooling runner 210, and the liquid cooling runner 210 is communicated with a liquid inlet 101 and a liquid outlet 102 formed in the box body 100, so that after the arrangement, connecting pieces between the box body 100 and the liquid cooling structure 200 are reduced, the production cost is saved, the structural strength of the box body 100 and the liquid cooling structure 200 is enhanced, and the liquid cooling structure 200 is not easy to deform due to the strength difference; meanwhile, installation steps between the box body 100 and the liquid cooling structure 200 are reduced, production time is reduced, and production efficiency is improved.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. The utility model provides a battery box which characterized in that:
the box body is provided with a liquid cooling part, and the liquid cooling part is used for corresponding to the battery module arranged in the box body;
the liquid cooling portion comprises a liquid cooling structure integrally formed with the box body, the liquid cooling structure comprises a liquid cooling runner, and the liquid cooling runner is communicated with a liquid inlet and a liquid outlet formed in the box body.
2. The battery case according to claim 1, characterized in that:
the liquid cooling part is provided with a liquid cooling accommodating groove, the liquid cooling accommodating groove is provided with a first reinforcing structure, the first reinforcing structure comprises a plurality of reinforcing beams which are arranged in the liquid cooling accommodating groove in an intersecting and spaced mode, and two ends of each reinforcing beam are connected to the side wall of the liquid cooling accommodating groove; the bottom of the stiffening beam is connected with the bottom of the liquid cooling accommodating groove.
3. The battery case according to claim 2, characterized in that:
the stiffening beam, the box body and the liquid cooling structure are integrally formed.
4. The battery case of claim 3, wherein:
the plurality of stiffening beams are arranged along the transverse direction and the longitudinal direction of the liquid cooling part, a plurality of liquid cooling subareas are limited by the liquid cooling part, and the plurality of liquid cooling subareas correspond to the plurality of battery modules arranged in the box body in a one-to-one mode.
5. The battery case according to claim 2, characterized in that:
the reinforced beam is supported on the upper cover of the box body.
6. The battery case according to claim 2, characterized in that:
the box is equipped with second additional strengthening, second additional strengthening including form in many strengthening ribs of box periphery wall, many strengthening ribs extend and follow the width and the length direction interval arrangement of box along the direction of height of box.
7. The battery case according to claim 6, characterized in that:
the battery pack is characterized in that the box body is configured into a lower box body of the battery pack, the battery pack is further provided with an upper box body assembled on the lower box body, the edge of an opening on the upper side of the box body extends outwards to form a turned edge, and a box body mounting part is arranged on the turned edge.
8. The battery case according to claim 6, characterized in that:
the first reinforcing structure, the second reinforcing structure and the box body are integrally formed.
9. The battery case according to claim 8, characterized in that:
the integral molding comprises integral die-casting molding.
10. A battery pack, comprising: the battery pack includes a battery case according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509686.9U CN215816124U (en) | 2021-07-04 | 2021-07-04 | Battery box and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509686.9U CN215816124U (en) | 2021-07-04 | 2021-07-04 | Battery box and battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816124U true CN215816124U (en) | 2022-02-11 |
Family
ID=80180406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121509686.9U Active CN215816124U (en) | 2021-07-04 | 2021-07-04 | Battery box and battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215816124U (en) |
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2021
- 2021-07-04 CN CN202121509686.9U patent/CN215816124U/en active Active
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