CN214754061U - Sandwich-structured battery frame and battery module applied by same - Google Patents
Sandwich-structured battery frame and battery module applied by same Download PDFInfo
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- CN214754061U CN214754061U CN202120515711.8U CN202120515711U CN214754061U CN 214754061 U CN214754061 U CN 214754061U CN 202120515711 U CN202120515711 U CN 202120515711U CN 214754061 U CN214754061 U CN 214754061U
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- conductive
- conductive plate
- handle
- sandwich
- battery frame
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- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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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
Abstract
The utility model provides a battery frame with a sandwich structure, which comprises a first current-conducting plate and a second current-conducting plate; a plurality of conductive handles are sandwiched between the first and second conductive plates, and a portion of each of those conductive handles is exposed out of the second conductive plate so as to be welded or directly contacted with the battery cell. The battery frame with the sandwich structure has the advantages of high mechanical strength, low resistance, high electric conductivity, high heat conductivity and the like.
Description
Technical Field
The present invention relates to a battery frame having a conductive tab (tab) and capable of being electrically connected to a battery cell (battery cell) and a battery module using the same, and more particularly, to a battery frame formed by a sandwich structure and a battery module using the same.
Background
At present, the market of the electric automobile and the electric locomotive develops rapidly mainly because governments all over China are forced to push the policy of energy saving and carbon reduction and provide certain amount of subsidy for users purchasing the electric automobile and the electric locomotive. The battery modules of the electric vehicle and the electric locomotive supply electric power and convert the electric power into power, and the battery modules are electrically connected with a plurality of battery units to provide electric power together because the cruising power (i.e. the driving distance which can be reached by the battery modules charged at a time) is not too poor.
In the battery module, a plurality of battery units are welded with the conductive handle of the battery frame and are electrically connected with each other through a lead or other electrical connection means. However, the fixing manner of the conductive handle in the conventional battery frame is not necessarily stable, which makes the welded portion of the battery cell and the conductive handle easily released, resulting in malfunction of the battery module. In particular, in the case of a part of the battery module, the maintenance side cannot replace the conductive handle or re-weld the conductive handle after the battery module is shipped from the factory, so that the user must purchase a new battery module at a cost. In view of this, the present invention provides a battery frame with an innovative structure, wherein the battery frame not only has better mechanical strength, but also the welding portion of the conductive handle of the battery frame and the battery unit is not easy to be loosened to increase the safety of the battery module in use.
SUMMERY OF THE UTILITY MODEL
An embodiment of the present invention provides a battery frame with a sandwich structure, which includes a first conductive plate and a second conductive plate. The plurality of conductive handles are clamped and positioned between the first conductive plate and the second conductive plate, wherein part of the conductive handles is exposed out of the second conductive plate so that the conductive handles are welded or directly contacted with a corresponding battery unit.
In an embodiment of the present invention, the first conductive plate has a plurality of first openings, the second conductive plate has a plurality of second openings corresponding to the plurality of first openings, and the second conductive plate has a peripheral wall surrounding the second conductive plate to form a conductive plate accommodating space. The current conducting plate accommodating space is used for accommodating the first current conducting plate, and when the first current conducting plate is accommodated in the current conducting plate accommodating space, the periphery of the first current conducting plate can abut against the peripheral wall surface of the current conducting plate accommodating space.
In an embodiment of the present invention, a conductive handle receiving space is disposed near each second opening of the second conductive plate to receive a portion of the conductive handle; when the first conductive plate is accommodated in the conductive plate accommodating space, the conductive handle is clamped and positioned between the first conductive plate and the second conductive plate.
In an embodiment of the present invention, the conductive handle includes a tail end, at least one handle and at least one welding point, wherein the tail end is connected to the handle, the welding point is disposed on the handle, and the handle is exposed to the second opening.
In an embodiment of the present invention, the conductive handle further includes a connecting portion, and the conductive handle penetrates through the connecting portion to connect to another adjacent conductive handle.
In an embodiment of the present invention, the conductive handle storage space is used for storing the tail end and the connecting portion of the conductive handle.
In the embodiment of the present invention, the conductive handle includes two handle portions and four welding points, and each handle portion is provided with two welding points.
In the embodiment of the present invention, the first conductive plate and the second conductive plate are respectively a thick metal plate with low resistance and high conductivity, and the conductive handle is a conductive plate with high mechanical strength.
In the embodiment of the present invention, two adjacent conductive handles face each other and are welded or directly contacted with the same battery unit.
Based on at least one of the aforesaid purpose, the embodiment of the present invention provides a battery module, including: any one of the above sandwich-structured battery frames; and a plurality of battery cells welded or in direct contact with the plurality of conductive handles.
Briefly, an embodiment of the present invention provides a battery frame with a sandwich structure, which has high mechanical strength, low resistance, high electrical conductivity and high thermal conductivity, and when the battery frame with the sandwich structure is applied to a battery module, the safety of the battery module during use can be increased.
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is an exploded view of a sandwich-structured battery frame according to a first embodiment of the present invention.
Fig. 2 is a first perspective view of a sandwich-structured battery frame according to a first embodiment of the present invention.
Fig. 3 is a second perspective view of the sandwich-structured battery frame according to the first embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a battery module using a battery frame of a sandwich structure according to a first embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a battery module using a sandwich-structured battery frame according to a second embodiment of the present invention.
Description of reference numerals: 1-sandwich structured battery frame; 11-a first conductive plate; 111-a first opening; 12-a second conductive plate; 121-peripheral wall surface; 123-a second opening; 124-conductive handle receiving space; 13. 13' -a conductive handle; 131-a tail end; 132-a connecting portion; 133-a handle; 134. 134' -solder joints; 2-battery cell.
Detailed Description
For a fuller understanding of the objects, features and functions of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
An embodiment of the utility model provides a sandwich structure's battery frame, it is including first current conducting plate, second current conducting plate and a plurality of electrically conductive handle, wherein a plurality of electrically conductive handles are pressed from both sides and are established and be located between first current conducting plate and the second current conducting plate to form sandwich structure. Furthermore, the first conductive plate and the second conductive plate are selectively made of thick metal plates made of low-resistance and high-conductivity materials, so that the battery frame with low-resistance and high-conductivity characteristics is provided. In addition, the plurality of conductive handles clamped between the first conductive plate and the second conductive plate are made of conductive metal sheets with high mechanical strength, such as nickel sheets, and each conductive handle is welded with the battery unit through a plurality of welding points, so that the welded parts of the conductive handles and the battery unit are not easy to loosen. The first conductive plate and the second conductive plate are electrically connected with the conductive handle, so that the first conductive plate, the second conductive plate and the conductive handle are substantially equipotential, and an equipotential electric connector is formed.
Put simply, the utility model discloses use first current conducting plate and second current conducting plate to press from both sides and establish a plurality of electrically conductive handles of location to form the good, low resistance of mechanical strength, the high electrically conductive sandwich framework's of mechanical strength battery frame. In addition, in other embodiments of the present invention, a battery module using the battery frame with the sandwich structure is also provided.
Referring to fig. 1 to 3, fig. 1 is an exploded view of a sandwich-structured battery frame according to a first embodiment of the present invention, fig. 2 is a first perspective view of the sandwich-structured battery frame according to the first embodiment of the present invention, and fig. 3 is a second perspective view of the sandwich-structured battery frame according to the first embodiment of the present invention. The battery frame 1 with a sandwich structure includes a first conductive plate 11, a second conductive plate 12, and a plurality of conductive handles 13, wherein the plurality of conductive handles 13 are sandwiched and positioned between the first conductive plate 11 and the second conductive plate 12. And, a portion of each conductive handle 13 is exposed to the outside of the second conductive plate 12 so as to be welded with the battery cell to electrically connect the battery cell. Thereby, the plurality of conductive handles 13 are sandwiched and positioned between the first conductive plate 11 and the second conductive plate 12 to form the battery frame 1 having a sandwich structure. The utility model discloses sandwich structure's battery frame 1 has the mechanical strength of preferred than traditional battery frame.
Further, the first conductive plate 11 defines a plurality of first openings 111. The periphery of the second conductive plate 12 is provided with a peripheral wall surface 121, so that a conductive plate accommodating space for accommodating the first conductive plate 11 is formed on the second conductive plate 12. The second conductive plate 12 further defines a plurality of second openings 123 corresponding to the plurality of first openings 111. In this embodiment, the first openings 121 and the second openings 123 are square, the first openings 121 are arranged in an array manner, and the second openings 123 are arranged in an array manner, but the present invention is not limited to the shapes and arrangements of the first openings 121 and the second openings 123. The second conductive plate 12 is provided with a conductive handle receiving space 124 near each second opening 123, and the conductive handle receiving space 124 is used for receiving and positioning the conductive handle 13.
Each conductive shank 13 includes a tail end 131, a connecting portion 132, a plurality of shanks 133 and a plurality of solder joints 134. The rear end 131 is connected to the plurality of handles 133 (in this embodiment, the number of the handles 133 is two, but the present invention is not limited thereto), and the plurality of welding points 134 are disposed on the plurality of handles 133 (in this embodiment, each handle 133 is provided with two welding points 134, but the present invention is not limited thereto, the welding points 134 are used for welding with the battery cell, so that the battery frame 1 is electrically connected with the battery cell.
The tail 131 is formed by extending the tail of the shank 133 in an oblique upward direction and then in a horizontal direction relative to the direction of the shank 133. The connecting portion 132 of the conductive stem 13 is formed by extending the tail portion 131 in a specific direction (e.g., a row direction, but the present invention is not limited thereto), and the connecting portion 132 of the conductive stem 13 is used to connect the connecting portion 132 of another conductive stem 13, so that the plurality of conductive stems 13 in the specific direction (e.g., the row direction, but the present invention is not limited thereto) are connected to each other.
In the embodiment of the present invention, the first conductive plate 11 and the second conductive plate 12 may be low-resistance high-conductivity conductive plates, for example, they may be formed through thick metal plates, so as to reduce ohm loss of the battery cells electrically connected thereto. Furthermore, high electrical conductivity means high thermal conductivity, so that when thermal runaway of the battery module occurs, heat can be more rapidly distributed on the first conductive plate 11 and the second conductive plate 12, thereby realizing a design of preventing burn-up and greatly improving the safety of the battery module. The conductive handle 13 may be made of a conductive metal sheet with high mechanical strength, such as a nickel sheet, but the present invention is not limited thereto.
Referring to fig. 1 and 4, fig. 4 is a schematic cross-sectional view of a battery module using a battery frame with a sandwich structure according to a first embodiment of the present invention. In the assembly process of the battery module, the plurality of conductive shanks 13 are first placed in alignment with the plurality of second openings 123 of the second conductive plate 12, the shanks 133 and the welding points 134 are exposed to the second openings 123, and the tail ends 131 and the connecting portions 132 are received in the conductive shank receiving spaces 124. Then, when the first conductive plate 11 is placed in the conductive plate receiving space of the second conductive plate 12, the periphery of the first conductive plate 11 will abut against the peripheral wall surface 121 of the second conductive plate 12, so that the first conductive plate 11 and the second conductive plate 12 are fixed to each other, and the plurality of conductive handles 13 are sandwiched and positioned between the first conductive plate 11 and the second conductive plate 12. Next, the top plate of the battery cell 2 is welded or directly contacted to the welding point 134 of the conductive shank 13.
It should be noted that the bottom plate of the battery unit 2 can be electrically connected to the soldering point 134 of the conductive handle 13 of another battery frame 1, so that a loop can be formed when the two battery frames 1 are electrically connected to the load. Wherein, the architecture of the battery frame 1 may be the same as that of another battery frame 1. The battery frame 1 may be assembled after shipment, and thus the assembly process of the battery module may be directly completed only by welding or directly contacting the top plate or the bottom plate of the battery unit 2 to the welding points 134.
In addition, referring to fig. 5, fig. 5 is a schematic cross-sectional view of a battery module using a battery frame with a sandwich structure according to a second embodiment of the present invention. Unlike the conductive frame 1 of the sandwich structure of the first embodiment, in the second embodiment, the two adjacent conductive handles 13, 13 'are disposed correspondingly, that is, the conductive handles 13, 13' exposed to the two adjacent second openings 123 face each other, and the two welding points 134, 134 'of the two conductive handles 13, 13' are used for welding or contacting with the top plate of the same battery unit 2.
In summary, the present invention provides a battery frame with a sandwich structure having good mechanical strength, low resistance, high electrical conductivity and high thermal conductivity and a battery module using the same. The utility model discloses a sandwich structure's battery frame easily realizes to the technical problem that the easy pine of the welding department between the electrically conductive handle of having solved traditional battery frame and the battery unit takes off, consequently, the utility model provides a sandwich structure's battery frame has very good market advantage, and has high practicality.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e., all equivalent changes and modifications in the shape, structure, characteristics and spirit of the claims of the present invention are included in the claims of the present invention.
Claims (10)
1. A sandwich-structured battery frame, comprising:
a first conductive plate;
a second conductive plate;
a plurality of conductive handles sandwiched and positioned between the first and second conductive plates, wherein a portion of each of the plurality of conductive handles is exposed outside the second conductive plate such that each of the conductive handles is welded or directly contacted with a corresponding battery cell.
2. The sandwich battery frame of claim 1, wherein the first conductive plate defines a plurality of first openings, the second conductive plate defines a plurality of second openings corresponding to the plurality of first openings, the second conductive plate defines a peripheral wall around an outer periphery thereof to form a conductive plate receiving space for receiving the first conductive plate; when the first conductive plate is received in the conductive plate receiving space, the periphery of the first conductive plate will abut against the peripheral wall surface of the conductive plate receiving space.
3. The sandwich battery frame of claim 2, wherein a conductive handle receiving space is disposed near each of the second openings of the second conductive plate for receiving a portion of the conductive handle; when the first conductive plate is received in the conductive plate receiving space, the conductive handle is clamped and positioned between the first conductive plate and the second conductive plate.
4. The sandwich battery frame of claim 3, wherein the conductive stem comprises a tail portion, at least one handle portion, and at least one solder joint, wherein the tail portion is connected to the handle portion, the solder joint is disposed on the handle portion, and the handle portion is exposed to the second opening.
5. The sandwich battery frame of claim 4, wherein the conductive handle further comprises a connecting portion, and the conductive handle penetrates through the connecting portion to connect to another adjacent conductive handle.
6. The sandwich battery frame of claim 5, wherein the conductive handle receiving space is configured to receive the tail portion of the conductive handle and the connecting portion.
7. The sandwich battery frame of claim 4, wherein the conductive handle includes two handle portions and four solder joints, two solder joints being provided on each handle portion.
8. The sandwich battery frame of claim 1, wherein the first conductive plate and the second conductive plate are respectively a thick metal plate with low resistance and high conductivity, and the conductive handle is a conductive plate with high mechanical strength.
9. The sandwich battery frame of claim 1, wherein the two adjacent conductive handles face each other and are welded or directly contacted to the same battery cell.
10. A battery module, comprising:
the sandwich-structured battery frame of one of claims 1 to 9; and
the plurality of battery cells welded or in direct contact with the plurality of conductive handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515711.8U CN214754061U (en) | 2021-03-11 | 2021-03-11 | Sandwich-structured battery frame and battery module applied by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515711.8U CN214754061U (en) | 2021-03-11 | 2021-03-11 | Sandwich-structured battery frame and battery module applied by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214754061U true CN214754061U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120515711.8U Active CN214754061U (en) | 2021-03-11 | 2021-03-11 | Sandwich-structured battery frame and battery module applied by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214754061U (en) |
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2021
- 2021-03-11 CN CN202120515711.8U patent/CN214754061U/en active Active
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