CN114512755B - Battery package and vehicle - Google Patents
Battery package and vehicle Download PDFInfo
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- CN114512755B CN114512755B CN202011288545.9A CN202011288545A CN114512755B CN 114512755 B CN114512755 B CN 114512755B CN 202011288545 A CN202011288545 A CN 202011288545A CN 114512755 B CN114512755 B CN 114512755B
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- battery module
- frame
- bottom plate
- battery
- module body
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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 embodiment of the invention provides a battery pack and a vehicle, wherein the battery pack specifically comprises: the battery module comprises a battery module body and a bottom plate, and the bottom plate is fixedly connected to the bottom of the battery module body; the frame comprises a plurality of frame beams, the frame beams surround to form a first accommodating space, and the first accommodating space is used for accommodating the battery module; the frame is also provided with a first protruding structure, and the first protruding structure extends to the first accommodating space along the circumferential direction of the frame; the first bonding piece is respectively connected with the bottom plate and the first bulge structure so as to fix the battery module in the frame. In the embodiment of the invention, the welding of the frame bottom plate on the frame is avoided, so that the weight and cost investment of the battery pack can be reduced; adopt first bonding piece to fix the battery module in the frame, simple process, the cost is lower, and the equipment process of battery package is simple moreover, can avoid using the fixed battery module of fastener, alleviates the weight of battery package.
Description
Technical Field
The invention relates to the technical field of battery management, in particular to a battery pack and a vehicle.
Background
With the rapid development of electronic technology, the application field of battery modules is also wider and wider. Currently, the battery module is generally welded and fixed with end plates and side plates to improve the surface strength of the battery module. A plurality of battery modules are generally fixed in a tray by a person skilled in the art and assembled into a battery pack for use, the tray may include a tray frame, a tray bottom plate and a sealing cover, and the tray bottom plate and the tray frame are generally connected by welding. In the prior art, the battery module is generally assembled in the tray in a hoisting manner, the end plates and the side plates on the battery module are fixed in the tray by using fasteners, and then the sealing cover is fastened with the side frame of the tray, so that the battery module can be sealed in the tray to form a battery pack.
However, the tray bottom plate and the tray side frame are welded and connected, and the thickness of the tray bottom plate is required to be thick, so that the weight of the tray bottom plate is large, and the cost is high; the welding process is difficult, further resulting in increased costs; the battery module with the tray adopts the fastener to fix, leads to the equipment process of battery package is more, and the cost is higher, and the fastener still increases easily moreover the weight of battery package.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a battery pack and a vehicle that overcome or at least partially solve the above problems.
In order to solve the above problem, in a first aspect, an embodiment of the present invention discloses a battery pack, including: a battery module, a frame and a first adhesive member,
the battery module comprises a battery module body and a bottom plate, and the bottom plate is fixedly connected to the bottom of the battery module body;
the frame comprises a plurality of frame beams, the frame beams surround to form a first accommodating space, and the first accommodating space is used for accommodating the battery module;
the frame is also provided with a first protruding structure, and the first protruding structure extends to the first accommodating space along the circumferential direction of the frame;
the first bonding piece is respectively connected with the bottom plate and the first protruding structure so as to fix the battery module in the frame.
Optionally, the number of the battery modules is multiple, at least one cross beam is arranged in the first accommodating space, the cross beam divides the first accommodating space into multiple second accommodating spaces, and one second accommodating space is used for accommodating one battery module;
the two sides of the beam are provided with second protruding structures, the second protruding structures are parallel and level to the first protruding structures, and the second protruding structures are used for bearing the battery module.
Optionally, a heat-conducting adhesive layer is arranged between the bottom plate and the bottom of the battery module body, and the heat-conducting adhesive layer is respectively connected with the bottom plate and the bottom of the battery module body so as to fixedly connect the bottom plate to the bottom of the battery module body.
Optionally, the battery module further includes: the top plate is fixedly connected to the top of the battery module body.
Optionally, the top plate is a plastic plate and the bottom plate is a metal plate.
Optionally, a second bonding piece is arranged between the top plate and the top of the battery module body, and the second bonding piece is respectively connected with the top plate and the top of the battery module body so as to fixedly connect the top plate to the top of the battery module body.
Optionally, the bonding strength of the second bonding member is greater than the bonding strength of the first bonding member.
Optionally, the battery pack further includes: a heat sink and a heat-conducting adhesive layer,
the heat-conducting adhesive layer is respectively connected with one side, far away from the battery module body, of the base plate and the heat dissipation part, so that the heat dissipation part is fixedly connected with the base plate.
Optionally, the battery pack further includes: and the cover plate is buckled and connected with the frame so as to seal the battery module in the frame.
In a second aspect, the embodiment of the invention further provides a vehicle, which specifically includes the battery pack.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, the bottom of the battery module body is fixedly connected with the bottom plate, and the first bonding pieces are respectively connected with the bottom plate and the first bulge structures, so that the battery module can be fixed on the frame. Therefore, the frame bottom plate is prevented from being welded on the frame, and the weight and cost investment of the battery pack can be reduced; the battery module is fixed in the frame by the first bonding piece, so that the process is simple and the cost is low; adopt first bonding piece to connect bottom plate and first protruding structure can fix the battery module in the frame, make the assembly process of battery package is simple, can avoid using the fixed battery module of fastener, alleviates the weight of battery package.
Drawings
Fig. 1 is a schematic view of a battery pack according to the present invention 1;
fig. 2 is a schematic structural view of a battery pack according to the present invention 2;
fig. 3 is a schematic structural view illustrating a case where the number of battery modules is two according to the present invention;
fig. 4 is a schematic structural view illustrating a frame corresponding to the battery module of fig. 3 according to the present invention;
fig. 5 is a schematic structural view of a battery module according to the present invention;
description of reference numerals:
1-battery module, 11-battery module body, 12-bottom plate, 13-top plate, 2-frame, 20-frame beam, 21-first protrusion structure, 22-beam, 23-second protrusion structure, 24-first accommodation space, 25-second accommodation space, 3-first bonding member, 4-heat sink, 5-cover plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Referring to fig. 1, a schematic structural diagram of a battery pack according to the present invention is shown, and as shown in fig. 1, the battery pack may specifically include: the battery module 1 comprises a battery module body 11 and a bottom plate 12, wherein the bottom plate 12 can be fixedly connected to the bottom of the battery module body 11; the frame 2 may include a plurality of frame beams 20, the plurality of frame beams 20 may enclose a first receiving space 24, the first receiving space 24 may be configured to receive the battery module 1, the frame 2 is further provided with a first protruding structure 21, the first protruding structure 21 may extend to the first receiving space 24 along a circumferential direction of the frame 2, and the first bonding member 3 may be connected to the bottom plate 12 and the first protruding structure 21, respectively, so as to fix the battery module 1 in the frame 2.
In the embodiment of the present invention, the bottom plate 12 is fixedly connected to the bottom of the battery module body 11, and the first adhesive member 3 is respectively connected to the bottom plate 12 and the first protrusion structure 21, so as to fix the battery module 1 to the frame 2. Therefore, the frame bottom plate is prevented from being welded on the frame 2, and the weight and cost investment of the battery pack can be reduced; the first bonding piece 3 is adopted to fix the battery module 1 in the frame 2, so that the process is simple and the cost is low; adopt first bonding piece 3 to connect bottom plate 12 and first protruding structure 21 and can fix battery module 1 in frame 2 for the equipment process of battery package is simple, can avoid using the fixed battery module 1 of fastener, lightens the weight of battery package.
In practical applications, the battery module body 11 is an assembly formed by connecting a plurality of batteries in series.
Alternatively, the base plate 12 may be a metal plate. In practical application, because the heat conductivity of metal sheet is better, can be through the outside of bottom plate 12 with the heat transfer to battery module 1 that battery module 11 produced, to the heat dissipation of battery module body 11, improve battery module 1's life.
Specifically, the bottom plate 12 can be aluminum plate, aluminum alloy sheet or copper sheet and the like metal materials with good heat conductivity, and like this, the bottom plate 12 can in time transmit the heat that the battery module body 11 produced to the outside of battery module 1 to dispel the heat to battery module 1, improve battery module 1's life. In practical applications, the thickness of the bottom plate 12 may be 1 to 1.5mm, which may be specifically set according to practical requirements, and the embodiment of the present invention is not particularly limited.
Specifically, the bottom plate 12 is fixed on the first protruding structure 21 of the frame 2 through the first bonding member 3, the first bonding member 3 can bond the circumferential edge of the bottom plate 12 on the frame 2, and the first bonding member 3 can be a sealing structure such as a sealant or a sealing ring, so as to connect the circumferential edge of the bottom plate 12 with the frame 2 more tightly, and more safely and reliably. In practical application, the battery module 1 and the frame 2 are sealed in an adhesive mode, and reliable sealing can be achieved by fully utilizing the characteristics of the sealant and the dead weight of the battery module 1. Meanwhile, the frame 2 does not need to be sealed by independently designing a frame bottom plate, so that the welding times can be reduced, and the weight of the battery pack can be reduced. Because sealed glue can provide the adhesion, can avoid using fasteners such as bolt, screw rod to connect fixed battery module 1 and frame 2, alleviate the weight of battery package.
Specifically, the battery pack may further include a control module, the control module may be electrically connected to the battery module body 11, and the control module may be configured to control charging and discharging of the battery pack.
Alternatively, a heat conductive adhesive layer may be disposed between the bottom plate 12 and the bottom of the battery module body 11, and the heat conductive adhesive layer may be connected to the bottom plate 12 and the bottom of the battery module body 11, respectively, to fixedly connect the bottom plate 12 to the bottom of the battery module body 11.
In the embodiment of the invention, the heat-conducting adhesive layer is arranged between the bottom plate 12 and the bottom of the battery module body 11, and the heat-conducting adhesive has good adhesion, so that the bottom plate 12 can be stably fixed at the bottom of the battery module body 11 to form an integral structure, the rigidity and the strength of the battery module 1 can be enhanced, and the extrusion strength of the battery module 1 can be improved. And add bottom plate 12 structure in the bottom of battery module body 11 for the bottom of battery module body 11 has higher plane degree and integrality, and the bottom of the battery module body 11 of being convenient for forms sealed face. Specifically, the heat-conducting glue also has good heat conductivity, and the heat dissipation effect of the battery module 1 can be further improved.
Specifically, due to the presence of the bottom plate 12, the bottom of the battery module body 11 has high flatness, and a sealing design is possible.
Specifically, the first protrusion structure 21 may extend inward along the circumferential direction of the frame 2, and the base plate 12 may be fixedly connected to the frame 2 by the first adhesive member 3 being connected to the base plate 12 and the first protrusion structure 21, respectively. The first protrusion structure 21 may be used to support the battery module 1, and may improve the stability of the fixed connection of the base plate 12 and the frame 2.
In practical applications, the first protrusion structure 21 may be a first flange structure, and the first flange structure may extend inward along the circumferential direction of the bottom of the frame 2; the first adhesive member 3 may be connected to the first flange structure to fixedly connect the bottom plate 12 to the first flange structure. The first flanging structure extends inwards along the circumferential direction of the bottom of the frame 2, so that the bottom plate 12 can be fixedly connected to the bottom of the frame 2, the structure of the frame 2 is reduced, the used material of the frame 2 is reduced, and the weight of the battery pack is reduced. Alternatively, the first protrusion structure 21 may also be a ring plate, which may be bonded to the frame beam 20 of the frame 2 by a sealant for supporting the battery module 1, and the ring plate may be bonded to the middle or bottom of the frame 2, which may be adjusted by those skilled in the art according to actual needs, and the present invention is not limited in particular.
Referring to fig. 2, which is a schematic structural diagram of a battery pack of the present invention, as shown in fig. 2, the number of battery modules 1 may be multiple, at least one cross beam 22 may be disposed in the first accommodating space 24, the cross beam 22 may divide the first accommodating space 24 into a plurality of second accommodating spaces 25, and one second accommodating space 25 may be used for accommodating one battery module 1; both sides of the beam 22 may be provided with second protruding structures 23, the second protruding structures 23 and the first protruding structures 21 may be arranged in parallel and level, and the second protruding structures 23 may be used for bearing the battery module 1.
In the embodiment of the present invention, when the number of the battery modules 1 is multiple, at least one cross beam 22 is disposed in the frame 2, so that the cross beam 22 can divide the first accommodating space 24 into a plurality of second accommodating spaces 25, and one second accommodating space 25 can accommodate one battery module 1, so that when the number of the battery modules 1 is multiple, the structure of the frame 2 is simple by disposing the cross beam 22.
Referring to fig. 3, which shows a structural schematic diagram of a battery module of the present invention when the number of the battery modules is two, referring to fig. 4, which shows a structural schematic diagram of a frame of the present invention corresponding to the battery module of fig. 3, referring to fig. 5, which shows a structural schematic diagram of a battery module of the present invention, as shown in fig. 3-5, the number of the battery modules 1 may be two, one cross beam 22 may be disposed in the frame 2, one cross beam 22 may divide the first receiving space 24 into two second receiving spaces 25, and one second receiving space 25 may be used to receive one battery module 1. Other situations can be set with reference to fig. 3 to 5, and the embodiment of the present invention is not particularly limited.
In a preferred embodiment of the present invention, the number of the battery modules 1 may be one or two, so as to increase the composition ratio of the battery modules 1, and reduce the usage amount of the battery pack structural member, so as to reduce the cost.
Optionally, the battery module 1 may further include: and a top plate 13, the top plate 13 being fixedly coupled to the top of the battery module body 11.
In the embodiment of the present invention, the top of the battery module body 11 may further be fixedly connected with a top plate 13, and the top plate 13 may further enhance the strength of the top of the battery module body 11. Like this, the top of battery module body 11 is equipped with roof 13, and the bottom is equipped with bottom plate 12, and roof 13, bottom plate 12 and battery module body 11 form an overall structure for the sandwich design is constituteed to battery module 1's whole, can strengthen battery module 1's rigidity and intensity, promotes battery module 1's backlog intensity.
Alternatively, the top plate 13 may be a plastic plate. In practical application, the weight of the battery pack can be reduced due to the light weight of the plastic material, and in practical application, the thickness of the top plate 13 can be 1-1.5 mm, and can be specifically set according to practical requirements, and the embodiment of the invention is not particularly limited.
Alternatively, a second adhesive member may be provided between the top plate 13 and the top of the battery module body 11, and the second adhesive member may be connected to the top plate 13 and the top of the battery module body 11, respectively, to fixedly connect the top plate 13 to the top of the battery module body 11.
In the embodiment of the present invention, a second adhesive member may be disposed between the top plate 13 and the top of the battery module body 11, the second adhesive member is respectively connected to the top plate 13 and the top of the battery module body 11, and the top plate 13 and the battery module body 11 are fixedly connected by the second adhesive member, so that the stability of the fixed connection between the top plate 13 and the battery module body 11 can be improved. And the top plate 13 is provided on the top of the battery module body 11 so that the top of the battery module body 11 has high flatness and integrity.
Alternatively, the adhesive strength of the second adhesive member may be greater than that of the first adhesive member 3. In practical applications, the bonding strength of the second bonding member is greater than that of the first bonding member 3, so that the top plate 13 can be more firmly bonded to the top of the battery module body 11.
Specifically, the second adhesive member may be a structural adhesive having a relatively high adhesive strength, such as a high-performance silicone structural adhesive, a neutral transparent silicone structural adhesive, or the like.
Optionally, the battery pack may further include: the heat dissipation member 4 and the heat conductive adhesive layer may be respectively connected to one side of the bottom plate 12 away from the battery module body 11 and the heat dissipation member 4, so as to fixedly connect the heat dissipation member 4 to the bottom plate 12.
In the embodiment of the invention, the heat dissipation member 4 is connected to one side of the bottom plate 12 of the battery module 1, which is far away from the battery module body 11, and the heat dissipation member 4 can accelerate the heat dissipation speed of the battery module 1 and prolong the service life of the battery module 1.
Specifically, a heat-conducting adhesive layer is provided between the heat sink 4 and the bottom plate 12 of the battery module 1, so that the heat sink 4 can dissipate heat of the battery module 1 relatively quickly due to the good heat-conducting property of the heat-conducting adhesive.
Specifically, the heat sink 4 may be a liquid-cooled plate made of an aluminum material or an alloy thereof, a copper material or an alloy thereof.
Optionally, the battery pack may further include: the cover plate 5, the cover plate 5 and the frame 2 may be snap-coupled to seal the battery module 1 within the frame 2.
In the embodiment of the present invention, the battery pack may further include a cover plate 5, and the cover plate 5 and the frame 2 are fastened to seal the battery module 1 in the frame 2, so as to protect the battery module 1.
The battery pack provided by the embodiment of the invention at least comprises the following advantages:
in the embodiment of the invention, the bottom of the battery module body is fixedly connected with the bottom plate, and the first bonding pieces are respectively connected with the bottom plate and the first bulge structures, so that the battery module can be fixed on the frame. Therefore, the welding of the frame bottom plate on the frame is avoided, and the weight and cost investment of the battery pack can be reduced; the battery module is fixed in the frame by the first bonding piece, so that the process is simple and the cost is low; adopt first bonding piece to connect bottom plate and first protruding structure can fix the battery module in the frame, make the assembly process of battery package is simple, can avoid using the fixed battery module of fastener, alleviates the weight of battery package.
On the other hand, the embodiment of the invention also provides a vehicle which specifically comprises the battery pack.
The vehicle provided by the embodiment of the invention at least comprises the following advantages:
in the embodiment of the invention, the bottom of the battery module body is fixedly connected with the bottom plate, and the first bonding piece is respectively connected with the bottom plate and the first bulge structure, so that the battery module can be fixed on the frame. Therefore, the frame bottom plate is prevented from being welded on the frame, and the weight and cost investment of the battery pack can be reduced; the battery module is fixed in the frame by the first bonding piece, so that the process is simple and the cost is low; the battery module can be fixed in the frame by adopting the first bonding piece to connect the bottom plate and the first protruding structure, so that the assembly process of the battery pack is simple, the battery module can be prevented from being fixed by using a fastener, and the weight of the battery pack is reduced.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those of skill in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the embodiments of the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the true scope of the embodiments of the present invention.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "include", "including" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or terminal device that comprises the element.
The above detailed description of the battery pack and the vehicle according to the present invention is provided, and the principle and the embodiment of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A battery pack, comprising: a battery module, a frame and a first adhesive member,
the battery module comprises a battery module body and a bottom plate, and the bottom plate is fixedly connected to the bottom of the battery module body;
the frame comprises a plurality of frame beams, the frame beams surround a first accommodating space, and the first accommodating space is used for accommodating the battery module;
the frame is also provided with a first protruding structure, and the first protruding structure extends to the first accommodating space along the circumferential direction of the frame; the frame is not provided with a frame bottom plate;
the first bonding piece is respectively connected with the bottom plate and the first protruding structure so as to fix the battery module in the frame.
2. The battery pack according to claim 1, wherein the number of the battery modules is plural, at least one cross member is provided in the first receiving space, the cross member divides the first receiving space into a plurality of second receiving spaces, and one of the second receiving spaces is used for receiving one of the battery modules;
the two sides of the beam are provided with second protruding structures, the second protruding structures are parallel and level to the first protruding structures, and the second protruding structures are used for bearing the battery module.
3. The battery pack according to claim 1, wherein a heat conductive adhesive layer is disposed between the bottom plate and the bottom of the battery module body, and the heat conductive adhesive layer is connected to the bottom plate and the bottom of the battery module body, respectively, so as to fixedly connect the bottom plate to the bottom of the battery module body.
4. The battery pack according to claim 1, wherein the battery module further comprises: the top plate is fixedly connected to the top of the battery module body.
5. The battery pack of claim 4, wherein the top plate is a plastic plate and the bottom plate is a metal plate.
6. The battery pack according to claim 4, wherein a second adhesive member is provided between the top plate and the top of the battery module body, and the second adhesive member is connected to the top plate and the top of the battery module body, respectively, to fixedly connect the top plate to the top of the battery module body.
7. The battery pack according to claim 6, wherein the second adhesive member has an adhesive strength greater than that of the first adhesive member.
8. The battery pack of claim 1, further comprising: a heat sink and a heat-conducting adhesive layer,
the heat-conducting adhesive layer is respectively connected with one side of the bottom plate, which is far away from the battery module body, and the heat-radiating piece so as to fixedly connect the heat-radiating piece with the bottom plate.
9. The battery pack of claim 1, further comprising: and the cover plate is buckled and connected with the frame so as to seal the battery module in the frame.
10. A vehicle comprising the battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011288545.9A CN114512755B (en) | 2020-11-17 | 2020-11-17 | Battery package and vehicle |
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| CN202011288545.9A CN114512755B (en) | 2020-11-17 | 2020-11-17 | Battery package and vehicle |
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| CN114512755A CN114512755A (en) | 2022-05-17 |
| CN114512755B true CN114512755B (en) | 2023-03-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730616A (en) * | 2014-01-24 | 2014-04-16 | 大连理工大学 | Corrugated sandwich protective structure of battery box of electric vehicle |
| CN208806285U (en) * | 2018-10-09 | 2019-04-30 | 重庆长安新能源汽车科技有限公司 | A kind of lightweight power battery cabinet |
| CN110190216A (en) * | 2019-03-08 | 2019-08-30 | 比亚迪股份有限公司 | Power battery pack, energy storage device and electric vehicle |
| CN211295208U (en) * | 2020-01-14 | 2020-08-18 | 欣旺达电动汽车电池有限公司 | Battery pack and electric automobile |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450091B (en) * | 2016-11-25 | 2019-07-09 | 北京海博思创科技有限公司 | Power battery |
| CN210535716U (en) * | 2019-08-28 | 2020-05-15 | 蜂巢能源科技有限公司 | Lower shell of battery pack and battery pack |
-
2020
- 2020-11-17 CN CN202011288545.9A patent/CN114512755B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730616A (en) * | 2014-01-24 | 2014-04-16 | 大连理工大学 | Corrugated sandwich protective structure of battery box of electric vehicle |
| CN208806285U (en) * | 2018-10-09 | 2019-04-30 | 重庆长安新能源汽车科技有限公司 | A kind of lightweight power battery cabinet |
| CN110190216A (en) * | 2019-03-08 | 2019-08-30 | 比亚迪股份有限公司 | Power battery pack, energy storage device and electric vehicle |
| CN211295208U (en) * | 2020-01-14 | 2020-08-18 | 欣旺达电动汽车电池有限公司 | Battery pack and electric automobile |
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| CN114512755A (en) | 2022-05-17 |
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