CN220585393U - Battery box and battery pack - Google Patents
Battery box and battery pack Download PDFInfo
- Publication number
- CN220585393U CN220585393U CN202322171962.0U CN202322171962U CN220585393U CN 220585393 U CN220585393 U CN 220585393U CN 202322171962 U CN202322171962 U CN 202322171962U CN 220585393 U CN220585393 U CN 220585393U
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- Prior art keywords
- plate
- top surface
- battery
- plate body
- frame
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Links
- 238000003780 insertion Methods 0.000 claims description 37
- 230000037431 insertion Effects 0.000 claims description 37
- 238000001125 extrusion Methods 0.000 claims description 34
- 230000007704 transition Effects 0.000 claims description 19
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery box and a battery pack, wherein the battery box comprises a bottom plate and a frame, the frame is circumferentially arranged along the bottom plate and is connected with the bottom plate, and the bottom plate and the frame form an accommodating space for accommodating a battery module; the bottom plate includes first plate body and second plate body, and one side terminal surface of first plate body is connected with one side terminal surface of second plate body, and at least part of the top surface of first plate body is concave for the top surface of second plate body. According to the battery box and the battery pack provided by the utility model, the volume of the accommodating space of the battery box can be increased, so that the energy density of the battery pack can be improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery box and a battery pack.
Background
With the development of new energy industry, the power battery is used as a key component of a new energy automobile, the low cost and high energy demand of the market on the power battery is gradually increased, and on the basis that the function of the power battery is not affected, the structure is simplified as much as possible, and the energy density is improved.
The current power battery package generally includes battery module and battery box, and the battery box includes bottom plate and frame, and the frame encircles the setting along the circumference of bottom plate to be connected with the bottom plate, bottom plate and frame form the accommodation space that is used for holding battery module.
However, the volume of the accommodating space of the existing battery box body is small, so that the energy of the battery module which can be accommodated by the battery box body is low, and the energy density of the power battery pack is low.
Disclosure of Invention
The utility model aims to at least solve one of the technical problems in the prior art, and provides a battery box and a battery pack, which can increase the energy density of the battery pack by increasing the volume of an accommodating space of the battery box.
The utility model provides a battery box body for achieving the purpose, which comprises a bottom plate and a frame, wherein the frame is circumferentially arranged along the bottom plate and is connected with the bottom plate, and the bottom plate and the frame form an accommodating space for accommodating a battery module;
the bottom plate comprises a first plate body and a second plate body, wherein one side end face of the first plate body is connected with one side end face of the second plate body, and at least part of the top surface of the first plate body is concave relative to the top surface of the second plate body.
Optionally, the thickness of at least part of the first plate body is smaller than the thickness of the second plate body.
Optionally, the bottom surface of the first plate body is flush with the bottom surface of the second plate body.
Optionally, the first plate body includes concave section and changeover portion, the top surface of concave section is relative the top surface of changeover portion is concave, concave section through the changeover portion with the second plate body is connected, the top surface of changeover portion with the top surface parallel and level of second plate body.
Optionally, the first plate body further includes a connection section, the concave section is connected with the frame through the connection section, the top surface of the connection section is flush with the top surface of the transition section.
Optionally, one end face of the two end faces where the first plate body and the second plate body are connected is provided with a first grafting convex part, and the other end face is provided with a first grafting concave part for grafting the first grafting convex part.
Optionally, one end face of the two ends, where the first plate body is connected with the frame, is provided with a second grafting convex part, and the other end face is provided with a second grafting concave part for the second grafting convex part to be spliced.
Optionally, the first plate body and the second plate body are both formed by extrusion, and an included angle is formed between the extrusion direction of the first plate body and the extrusion direction of the second plate body.
Optionally, an included angle between the extrusion molding direction of the first plate body and the extrusion molding direction of the second plate body is an acute angle, a right angle or an obtuse angle.
The utility model also provides a battery pack comprising the battery box body provided by the utility model.
The utility model has the following beneficial effects:
according to the battery box provided by the utility model, at least part of the top surface of the first plate body is recessed relative to the top surface of the second plate body, so that the bottom plate of the battery box body is provided with the recessed part, the volume of the accommodating space of the battery box body can be increased, the energy of the battery module accommodated by the battery box body can be increased, and the energy density of the battery pack can be improved.
According to the battery pack, the battery box body provided by the utility model can be used for increasing the volume of the accommodating space of the battery box body, so that the energy density of the battery pack can be improved.
Drawings
Fig. 1 is a schematic perspective view of a battery case and a battery pack according to an embodiment of the present utility model;
fig. 2 is a schematic cross-sectional structure of a battery case according to an embodiment of the present utility model;
fig. 3 is a schematic top view of a first plate of a battery case according to an embodiment of the present utility model, where the extrusion direction of the first plate is perpendicular to the extrusion direction of the second plate;
fig. 4 is a schematic top view of an extrusion direction of a first plate body and an extrusion direction of a second plate body of a battery case according to an embodiment of the present utility model;
reference numerals illustrate:
1-a box body; 11-a bottom plate; 111-a first plate body; 1111-a recessed section; 1112-transition section;
1113-a connecting segment; 1114—top surface of first plate; 1115—the bottom surface of the first plate; 112-a second plate; 1121-the top surface of the second plate; 1122-the bottom surface of the second plate; 113-a first mating protrusion; 114-a second mating protrusion; 12-frame; 121-a frame; 122-butt joint; 2-a case cover; 21-a first cover part; 22-a second cover part; 100-battery pack; 200-battery module; 300-an electrical component; 400-cooling assembly.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the utility model, the battery box and the battery pack provided by the utility model are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, an embodiment of the present utility model provides a battery case 1, which includes a bottom plate 11 and a frame 12, wherein the frame 12 is circumferentially disposed along the bottom plate 11 and connected to the bottom plate 11, and the bottom plate 11 and the frame 12 form an accommodating space for accommodating a battery module 200; the bottom plate 11 includes a first plate body 111 and a second plate body 112, one side end surface of the first plate body 111 is connected with one side end surface of the second plate body 112, and at least a portion of a top surface 1114 of the first plate body 111 is concave relative to a top surface 1121 of the second plate body 112.
In practical applications, the bottom plate 11 may have a top surface and a bottom surface that are disposed opposite to each other, the battery module 200 may be disposed above the top surface of the bottom plate 11, and the frame 12 is disposed around the bottom plate 11 in the circumferential direction of the bottom plate 11 and connected to the bottom plate 11, and may protrude with respect to the top surface of the bottom plate 11 so that the frame 12 can surround the battery module 200 disposed above the top surface of the bottom plate 11, thereby enabling the bottom plate 11 and the frame 12 to form an accommodating space for accommodating the battery module 200. That is, the top surface of the bottom plate 11 may be a surface of the bottom plate 11 facing into the receiving space, the bottom surface of the bottom plate 11 may be a surface of the bottom plate 11 facing out of the receiving space, such that the surface of the first plate 111 facing into the receiving space may be a top surface 1114 of the first plate 111, the surface of the first plate 111 facing out of the receiving space may be a bottom surface 1115 of the first plate 111, the surface of the second plate 112 facing into the receiving space may be a top surface 1121 of the second plate 112, the surface of the second plate 112 facing out of the receiving space may be a bottom surface 1122 of the second plate 112, and one side end surface of the circumference side of the first plate 111 may be connected with one side end surface of the circumference side of the second plate 112 to form part or all of the bottom plate 11, that is, the bottom plate 11 may be formed by connecting the first plate 111 with the second plate 112, or may be formed by connecting the first plate 111 with the second plate 112 entirely.
According to the battery box 1 provided by the embodiment of the utility model, at least part of the top surface 1114 of the first plate body 111 is recessed relative to the top surface 1121 of the second plate body 112, so that the bottom plate 11 of the battery box 1 can be provided with a recessed part, the volume of the accommodating space of the battery box 1 can be increased, the energy of the battery module 200 accommodated by the battery box 1 can be increased, and the energy density of the battery pack 100 can be improved.
That is, at least part of the surface of the first plate body 111 facing into the receiving space is recessed with respect to the surface of the second plate body 112 facing into the receiving space, so that at least part of the top surface of the bottom plate 11 may be recessed, i.e., at least part of the top surface of the bottom plate 11 may be protruded toward the outside of the receiving space, so that at least part of the receiving space may be protruded toward the outside of the receiving space, which in turn may increase the energy of the battery module 200 received by the battery case 1 by increasing the volume of the receiving space of the battery case 1, which in turn may increase the energy density of the battery pack 100.
Optionally, a portion of the top surface 1114 of the first plate 111 is recessed relative to the top surface 1121 of the second plate 112, or the entirety of the top surface 1114 of the first plate 111 is recessed relative to the top surface 1121 of the second plate 112.
As shown in fig. 2, in an embodiment of the present utility model, at least a portion of the first plate 111 may have a thickness smaller than that of the second plate 112.
By making the thickness of at least part of the first plate 111 smaller than the thickness of the second plate 112, it is achieved that at least part of the top surface 1114 of the first plate 111 is recessed with respect to the top surface 1121 of the second plate 112. For example, if the thickness of the portion of the first plate 111 is smaller than the thickness of the second plate 112, the top surface of the portion of the first plate 111 having a thickness smaller than the thickness of the second plate 112 may be recessed with respect to the top surface 1121 of the second plate 112, and if the thickness of the entire first plate 111 is smaller than the thickness of the second plate 112, the entire top surface 1114 of the first plate 111 may be recessed with respect to the top surface 1121 of the second plate 112.
As shown in fig. 2, in an embodiment of the present utility model, the bottom surface 1115 of the first plate 111 may be flush with the bottom surface 1122 of the second plate 112.
That is, the bottom surface 1115 of the first plate 111 (i.e., the surface of the first plate 111 facing the outside of the receiving space) and the bottom surface 1122 of the second plate 112 (i.e., the surface of the second plate 112 facing the outside of the receiving space) may be one plane, and the bottom surface 1115 of the first plate 111 and the bottom surface 1122 of the second plate 112 may be one plane. The design can make the bottom surface of the bottom plate 11 (i.e. the surface of the bottom plate 11 facing the outer side of the accommodating space) be a plane, so that the power battery pack adopted by the new energy automobile can meet the planarization design of the chassis of the new energy automobile, can meet the requirement of the power battery pack on the chassis of the new energy automobile, and is convenient for being mounted on the chassis of the planarization design of the new energy automobile.
As shown in fig. 2 and 3, in an embodiment of the present utility model, the first plate 111 may include a concave section 1111 and a transition section 1112, wherein a top surface of the concave section 1111 is concave relative to a top surface of the transition section 1112, the concave section 1111 is connected to the second plate 112 through the transition section 1112, and a top surface of the transition section 1112 is flush with a top surface 1121 of the second plate 112.
That is, recessed section 1111 is connected to transition section 1112 and transition section 1112 is connected to second plate 112 such that first plate 111 is connected to second plate 112 via transition section 1112. By recessing the top surface of the recessed section 1111 relative to the top surface of the transition section 1112, it is achieved that a portion of the top surface 1114 of the first plate body 111 is recessed relative to the top surface 1121 of the second plate body 112. Through making the top surface of changeover portion 1112 and the top surface 1121 parallel and level of second plate 112, can increase changeover portion 1112's thickness, make changeover portion 1112's thickness the same with the thickness of second plate 112, can be convenient for the fixed connection of first plate 111 and second plate 112 like this to can increase the leakproofness and the joint strength of first plate 111 and second plate 112 junction, thereby can improve the performance of battery box 1, and then can improve the performance of battery package 100.
As shown in fig. 2 and 3, in an embodiment of the present utility model, the first plate 111 may further include a connection section 1113, the concave section 1111 is connected to the frame 12 through the connection section 1113, and a top surface of the connection section 1113 is flush with a top surface of the transition section 1112.
That is, the concave section 1111 is connected to the connection section 1113, and the connection section 1113 is connected to the frame 12, so that the first plate 111 can be connected to the frame 12 through the connection section 1113. Through making the top surface of linkage segment 1113 and the top surface parallel and level of changeover portion 1112, can increase the thickness of linkage segment 1113, can be so the fixed connection of first plate body 111 and frame 12 to can increase the leakproofness and the joint strength of first plate body 111 and frame 12 junction, thereby can improve the performance of battery box 1, and then can improve the performance of battery package 100.
As shown in fig. 2 and 3, alternatively, the frame 12 may include a frame body 121 and a docking portion 122, where the frame body 121 is bent and connected with the docking portion 122, and the frame body 121 is circumferentially disposed around the base plate 11, and the docking portion 122 is connected with the base plate 11.
Specifically, the frame 121 can surround the battery module 200 placed above the top surface of the base plate 11, and the docking portion 122 may be connected with the connection segment 1113.
Optionally, the thickness of the docking portion 122 may be the same as the thickness of the connection section 1113, and the top surface of the docking portion 122 may be flush with the top surface of the connection section 1113, and the bottom surface of the docking portion 122 may be flush with the bottom surface of the connection section 1113, so that the first plate 111 and the frame 12 may be conveniently and fixedly connected, and the tightness and the connection strength at the connection position of the first plate 111 and the frame 12 may be increased, thereby improving the performance of the battery case 1, and further improving the performance of the battery pack 100.
As shown in fig. 2, in an embodiment of the present utility model, one end surface of two ends of the first plate 111 and the second plate 112 connected may be provided with a first insertion protrusion 113, and the other end surface may be provided with a first insertion recess into which the first insertion protrusion 113 is inserted.
As shown in fig. 2, for example, an end surface of the transition section 1112 connected to the second plate body 112 may be provided with a first insertion protrusion 113, an end surface of the second plate body 112 connected to the transition section 1112 may be provided with a first insertion recess, that is, an end surface of the first plate body 111 connected to the second plate body 112 may be provided with a first insertion protrusion 113, an end surface of the second plate body 112 connected to the first plate body 111 may be provided with a first insertion recess, and by inserting the first insertion protrusion 113 into the first insertion protrusion 113, the splicing of the first plate body 111 and the second plate body 112 may be achieved.
However, the arrangement of the first insertion protrusion 113 and the first insertion recess is not limited thereto, and for example, a first insertion protrusion 113 may be provided on an end surface of the second plate 112 connected to the transition section 1112, a first insertion recess may be provided on an end surface of the transition section 1112 connected to the second plate 112, that is, a first insertion protrusion 113 may be provided on an end surface of the second plate 112 connected to the first plate 111, and a first insertion recess may be provided on an end surface of the first plate 111 connected to the second plate 112.
Alternatively, the first base plate 11 and the second base plate 11 may be welded, riveted or bonded. This makes it possible to fix the first base plate 11 to the second base plate 11.
As shown in fig. 2, in an embodiment of the present utility model, one end surface of the two ends where the first plate 111 and the frame 12 are connected may be provided with a second insertion protrusion 114, and the other end surface may be provided with a second insertion recess into which the second insertion protrusion 114 is inserted.
As shown in fig. 2, for example, an end surface of the docking portion 122 connected to the connection section 1113 may be provided with the second insertion protrusion 114, an end surface of the connection section 1113 connected to the docking portion 122 may be provided with the second insertion protrusion 114, that is, an end surface of the frame 12 connected to the first plate body 111 may be provided with the second insertion protrusion 114, and an end surface of the first plate body 111 connected to the frame 12 may be provided with the second insertion protrusion 114, and by inserting the second insertion protrusion 114 into the second insertion protrusion 114, the splicing of the first plate body 111 and the frame 12 may be achieved.
However, the arrangement of the second insertion convex portion 114 and the second insertion concave portion is not limited thereto, and for example, the second insertion convex portion 114 may be provided on one end surface of the connection section 1113 connected to the abutting portion 122, the second insertion concave portion may be provided on one end surface of the abutting portion 122 connected to the connection section 1113, that is, the second insertion convex portion 114 may be provided on one end surface of the first plate body 111 connected to the frame 12, and the second insertion concave portion may be provided on one end surface of the frame 12 connected to the first plate body 111.
Alternatively, the first bottom plate 11 and the frame 12 may be welded, riveted or bonded. This allows the first base plate 11 to be fixed to the frame 12.
In an embodiment of the present utility model, the first plate 111 and the second plate 112 may be both extruded, and an included angle may be formed between the extrusion direction of the first plate 111 and the extrusion direction of the second plate 112.
That is, the first plate 111 and the second plate 112 may be manufactured by extrusion, and after the first plate 111 and the second plate 112 are connected, the extrusion direction of the first plate 111 is not parallel to the extrusion direction of the second plate 112, that is, an included angle is formed between the extrusion direction of the first plate 111 and the extrusion direction of the second plate 112, so that the strength of the whole bottom plate 11 can be improved, and for the bottom plate 11 including the first plate 111 and the second plate 112, the concave-convex adjustment of the top surface of the bottom plate 11 can be flexibly performed, thereby improving the performance of the battery case 1 and further improving the performance of the battery pack 100.
In an embodiment of the present utility model, the included angle between the extrusion direction of the first plate 111 and the extrusion direction of the second plate 112 may be an acute angle, a right angle or an obtuse angle.
As shown in fig. 3, for example, the extrusion direction of the first plate 111 is shown by an arrow a in fig. 3, the extrusion direction of the second plate 112 is shown by an arrow B in fig. 3, the angle between the arrow a and the arrow B in fig. 3 is a right angle, that is, the angle between the extrusion direction of the first plate 111 and the extrusion direction of the second plate 112 is a right angle, and the extrusion direction of the first plate 111 is perpendicular to the extrusion direction of the second plate 112.
As shown in fig. 4, for example, the extrusion direction of the first plate 111 is shown by an arrow C in fig. 4, the extrusion direction of the second plate 112 is shown by an arrow D in fig. 4, the included angle between the arrow C and the arrow D in fig. 4 is an acute angle or an obtuse angle, that is, the included angle between the extrusion direction of the first plate 111 and the extrusion direction of the second plate 112 is an acute angle or an obtuse angle, and the extrusion direction of the first plate 111 and the extrusion direction of the second plate 112 are not perpendicular.
As shown in fig. 1, the embodiment of the present utility model further provides a battery pack 100, including a battery case 1 according to the embodiment of the present utility model.
According to the battery pack 100 provided by the embodiment of the utility model, with the aid of the battery box 1 provided by the embodiment of the utility model, the energy density of the battery pack 100 can be improved by increasing the volume of the accommodating space of the battery box 1.
As shown in fig. 1, optionally, the battery pack 100 may further include a case cover 2, where the case cover 2 is disposed on the battery case 1.
That is, the battery module 200 is received in the battery case 1, and the case cover 2 covers the top of the battery case 1 and the top of the battery module 200.
As shown in fig. 1, alternatively, the case cover 2 may include a first cover part 21 and a second cover part 22, and the first cover part 21 may be shaped to correspond to the shape of the first plate 111, and the second cover part 22 may be shaped to correspond to the shape of the second plate 112.
As shown in fig. 1, optionally, the battery pack 100 may further include a battery module 200, an electric component 300, and a liquid cooling system, wherein the battery module 200 is received in the battery case 1 and the case cover 2, the electric component 300 is received in the battery case 1 and the case cover 2 and electrically connected with the battery module 200, and the cooling assembly 400 is received in the battery case 1 and the case cover 2 and is disposed corresponding to the battery module 200 for cooling the battery module 200.
As shown in fig. 1, alternatively, the battery module 200 may be shaped to correspond to the shape of the second plate 112, and the element first plate 111 of the electrical element 300 may be shaped to correspond to the shape of the first plate. Thus, the battery module 200 may be placed corresponding to the second plate 112, and the electric component 300 may be placed corresponding to the first plate 111.
In summary, according to the battery case 1 and the battery pack 100 provided by the embodiments of the present utility model, the energy density of the battery pack 100 can be improved by increasing the volume of the accommodating space of the battery case 1.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.
Claims (10)
1. The battery box body is characterized by comprising a bottom plate and a frame, wherein the frame is circumferentially arranged along the bottom plate and is connected with the bottom plate, and the bottom plate and the frame form an accommodating space for accommodating a battery module;
the bottom plate comprises a first plate body and a second plate body, wherein one side end face of the first plate body is connected with one side end face of the second plate body, and at least part of the top surface of the first plate body is concave relative to the top surface of the second plate body.
2. The battery box of claim 1, wherein at least a portion of the first plate has a thickness that is less than a thickness of the second plate.
3. The battery box of claim 1, wherein the bottom surface of the first plate is flush with the bottom surface of the second plate.
4. The battery box of claim 1, wherein the first plate includes a recessed section and a transition section, the top surface of the recessed section is recessed relative to the top surface of the transition section, the recessed section is connected to the second plate by the transition section, and the top surface of the transition section is flush with the top surface of the second plate.
5. The battery box of claim 4, wherein the first plate further comprises a connecting section, the recessed section is connected to the frame by the connecting section, and a top surface of the connecting section is flush with a top surface of the transition section.
6. The battery box according to claim 1, wherein one of two end surfaces of the first plate body and the second plate body connected is provided with a first insertion convex portion, and the other end surface is provided with a first insertion concave portion into which the first insertion convex portion is inserted.
7. The battery box according to claim 1, wherein one end face of the two ends of the first plate body connected with the frame is provided with a second insertion convex portion, and the other end face is provided with a second insertion concave portion for insertion of the second insertion convex portion.
8. The battery box of claim 1, wherein the first plate and the second plate are both extruded, and an included angle is formed between the extrusion direction of the first plate and the extrusion direction of the second plate.
9. The battery case according to claim 8, wherein an included angle between the extrusion direction of the first plate body and the extrusion direction of the second plate body is an acute angle, a right angle, or an obtuse angle.
10. A battery pack comprising a battery case according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322171962.0U CN220585393U (en) | 2023-08-14 | 2023-08-14 | Battery box and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322171962.0U CN220585393U (en) | 2023-08-14 | 2023-08-14 | Battery box and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220585393U true CN220585393U (en) | 2024-03-12 |
Family
ID=90108643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322171962.0U Active CN220585393U (en) | 2023-08-14 | 2023-08-14 | Battery box and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220585393U (en) |
-
2023
- 2023-08-14 CN CN202322171962.0U patent/CN220585393U/en active Active
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