CN113161668A - Battery pack box, battery pack and vehicle - Google Patents
Battery pack box, battery pack and vehicle Download PDFInfo
- Publication number
- CN113161668A CN113161668A CN202110257468.9A CN202110257468A CN113161668A CN 113161668 A CN113161668 A CN 113161668A CN 202110257468 A CN202110257468 A CN 202110257468A CN 113161668 A CN113161668 A CN 113161668A
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- China
- Prior art keywords
- plate
- side plate
- battery pack
- box
- rear side
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002131 composite material Substances 0.000 claims abstract description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 17
- 239000004917 carbon fiber Substances 0.000 claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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 application discloses box, battery package and vehicle of battery package, the box of battery package includes: a base plate; the side plates are arranged on the peripheral side edge of the bottom plate, and the end parts of the side plates are sequentially connected to limit an accommodating space with the bottom plate; wherein at least one of the plurality of side plates is configured as a carbon fiber composite, and the side plate configured as a carbon fiber composite has a cavity. According to the box of battery package of this application embodiment, through setting up the curb plate that the structure is carbon-fibre composite spare, at the structural strength who improves the box, make the box satisfy the collision protection requirement of battery package, can reduce the weight of box under the prerequisite of electrical component in the protection accommodation space effectively, make the box satisfy the lightweight requirement.
Description
Technical Field
The invention relates to the technical field of battery packs, in particular to a box body of a battery pack, the battery pack and a vehicle.
Background
In the related art, at present, with the development of electric vehicle technology, the requirement for the vehicle endurance mileage is higher and higher, and the volume and energy density of a battery pack of an electric vehicle are important determinants of the vehicle endurance mileage.
This results in an increasing weight of the battery pack. Therefore, the case of the battery pack needs to have better protection performance against impacts during driving. However, the side plates of the existing box body are mostly of aluminum alloy profile tailor-welding structures, and the scheme has the disadvantages of complex structure, heavy weight, low strength and low protective performance.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a box body of a battery pack, which has higher structural strength, good protection performance and low weight and can meet the requirement of light weight.
The application further provides a battery pack adopting the box body.
The application also provides a vehicle with the battery pack.
According to this application first aspect embodiment's box of battery package, includes: a base plate; the side plates are arranged on the peripheral side edge of the bottom plate, and the end parts of the side plates are sequentially connected to limit an accommodating space with the bottom plate; wherein at least one of the plurality of side plates is configured as a carbon fiber composite, and the side plate configured as a carbon fiber composite has a cavity.
According to the box of battery package of this application embodiment, through setting up the curb plate that the structure is carbon-fibre composite spare, at the structural strength who improves the box, make the box satisfy the collision protection requirement of battery package, can reduce the weight of box under the prerequisite of electrical component in the protection accommodation space effectively, make the box satisfy the lightweight requirement.
According to some embodiments of the application, the side plate comprises: the front side plate, the left side plate, the rear side plate and the right side plate are sequentially connected, and at least one of the front side plate, the left side plate, the right side plate and the rear side plate is constructed as a carbon fiber composite material.
According to some embodiments of the present application, the front side panel, the left side panel, the rear side panel, and the right side panel each comprise: the cavity comprises an upper plate and a lower plate, wherein the same side of the upper plate and the lower plate is connected through a vertical plate to define the cavity.
Furthermore, reinforcing ribs can be arranged in the cavity at intervals, and two ends of each reinforcing rib respectively push against the vertical plates on two sides of the top plate.
Further, the lower plate is connected with the bottom plate.
According to some embodiments of the application, the end of the side plate is provided with a connecting portion for connecting with a connecting portion of another side plate.
Further, the connecting portion is formed as a chamfer in which an end portion of the side plate is inclined inward.
In some embodiments, the base plate comprises: the bearing beam and the bottom plate are integrally formed or fixed on the bottom plate.
According to the battery pack of the embodiment of the second aspect of the present application, comprising: the box described in the above embodiments.
According to the vehicle of the embodiment of the third aspect of the present application, comprising: the battery pack described in the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a case according to an embodiment of the present application;
FIG. 2 is another schematic view of a case according to an embodiment of the present application.
Reference numerals:
the housing 100 is provided with a plurality of openings,
a bottom plate 10, a bottom plate body 11, a bearing beam 12,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The case 100, the battery pack, and the vehicle according to the embodiment of the invention are described below with reference to fig. 1 to 2.
As shown in fig. 1, a case 100 of a battery pack according to an embodiment of the first aspect of the present application includes: a bottom panel 10 and side panels 20.
The side plates 20 are arranged on the peripheral side edge of the bottom plate 10, and the end parts of the side plates 20 are sequentially connected to define an accommodating space with the bottom plate 10; wherein at least one of the plurality of side plates 20 is configured as a carbon fiber composite material piece, and the side plate 20 configured as a carbon fiber composite material piece has a cavity.
Specifically, curb plate 20 is connected at the circumference border of bottom plate 10 to the part that will set up in bottom plate 10 top region is spaced apart with other parts in the external world and barrier, when the battery package produced the collision, makes the barrier take place the striking preferentially with curb plate 20 and provides the protection with electrical components such as the battery module that set up in the accommodation space that bottom plate 10 and curb plate 20 injectd, avoids electrical components such as battery module to receive the thermal runaway phenomenon that appears after the striking, improves the safety in utilization of battery package.
Furthermore, based on current curb plate 20 adopts aluminum alloy mosaic structure, the great and structural strength of weight is difficult to satisfy the user demand of battery package, this application makes at least one in a plurality of curb plates 20 adopt carbon-fibre composite material spare, structural strength through carbon-fibre composite material spare promotes the overall structure intensity of box 100, so that the user demand of battery package is satisfied to the structural strength who makes box 100, simultaneously carbon-fibre composite material spare's weight is lower, can reduce the weight of box 100 effectively, make box 100 satisfy the lightweight requirement.
It will be appreciated that the plurality of side plates 20 are preferably each constructed as a carbon fiber composite piece.
The carbon fiber composite material member may be a structural member formed by sequentially stacking a plurality of layers of carbon fiber woven fabrics, or may be a structural member formed by constructing a frame with other materials and laying a carbon fiber woven fabric layer on the frame.
According to the box 100 of the battery pack of the embodiment of the application, the side plates 20 which are made of the carbon fiber composite material are arranged, so that the structural strength of the box 100 is improved, the box 100 meets the collision protection requirement of the battery pack, and the weight of the box 100 can be reduced on the premise that the electrical components in the accommodating space can be effectively protected, and the box 100 meets the requirement of light weight.
In the particular embodiment shown in fig. 1, according to some embodiments of the present application, the side panel 20 includes: the front plate 20a, the left rear plate 20b, the rear plate 20c and the right rear plate 20d are connected in sequence at the ends of the front plate 20a, the left rear plate 20b, the rear plate 20c and the right rear plate 20d, and at least one of the front plate 20a, the left rear plate 20b, the right rear plate 20d and the rear plate 20c is configured as a carbon fiber composite material.
That is, one end of the front side plate 20a is connected to the front end of the left rear side plate 20b, the other end of the front side plate 20a has the front end of the right rear side plate 20d connected thereto, one end of the rear side plate 20c is connected to the rear end of the left rear side plate 20b, and the other end of the rear side plate 20c is connected to the rear end of the right rear side plate 20d, so as to define a substantially rectangular frame structure, which is disposed on the peripheral side of the bottom plate 10 for protecting the electrical components in the accommodation space.
Further, at least one of the front side plate 20a, the left rear side plate 20b, the right rear side plate 20d, and the rear side plate 20c is configured as a carbon fiber composite material to effectively increase the structural strength of the cabinet 100 and reduce the weight of the cabinet 100.
As shown in fig. 2, according to some embodiments of the present application, each of the front side panel 20a, the left rear side panel 20b, the rear side panel 20c, and the right rear side panel 20d includes: the upper plate 21 and the lower plate 22, and the same side of the upper plate 21 and the lower plate 22 is connected by a vertical plate 23 to define a cavity.
That is, the side plate 20 is a hollow structure, and reinforcing ribs can be arranged in the hollow cavity at intervals, and two ends of each reinforcing rib respectively push against the vertical plates 23 on two sides of the top plate. Thus, the structural strength of the side panel 20 can be further improved by the reinforcing ribs on the premise that the weight of the side panel 20 is further reduced to satisfy the requirement of light weight.
According to some embodiments of the present application, lower plate 22 is coupled to base plate 10. In other words, the lower plate 22 is connected to the base plate 10 by means of gluing, or a plurality of nuts are provided on the lower plate 22 and screwed to the base plate 10 by means of the nuts.
As shown in fig. 1, the end of the side plate 20 is provided with a connecting portion for connecting with a connecting portion of the other side plate 20. Like this, the tip of curb plate 20 passes through connecting portion to be connected, makes the connection between the curb plate 20 inseparabler, reliable to can improve sealing performance, avoid dust and foreign matter to get into accommodation space via the clearance between the curb plate 20, improve the job stabilization nature of battery package.
It will be appreciated that the connecting portions are formed as inwardly inclined chamfers at the ends of the side plates 20. In this way, the chamfers at the ends of the two side plates 20 are fitted to connect the two side plates 20 at a certain angle (for example, 90 °), so that the size of the accommodating space defined by the side plates 20 and the bottom plate 10 is more reasonable, and the shape of the box 100 is more regular.
In the particular embodiment shown in fig. 2, the base plate 10 comprises: the floor comprises a floor body 11 and a carrier beam 12 positioned above the floor body 11, wherein the carrier beam 12 is integrally formed with the floor 10 or fixed on the floor 10.
Particularly, the carrier beam 12 is used for carrying the battery module and spacing the battery module from the bottom plate 10, so that a component for cooling the battery module can be arranged between the battery module and the bottom plate 10, the working stability of the battery pack is improved, and similarly, a cooling flow channel can be defined between the carrier beam 12 and the bottom plate 10 to cool the battery module in a liquid cooling manner.
According to the battery pack of the embodiment of the second aspect of the present application, comprising: the case 100 of the above embodiment.
According to the battery pack of the embodiment of the application, by adopting the box body 100, the battery pack can be effectively protected, the working stability of the battery pack is improved, the weight of the battery pack is reduced, and the battery pack meets the requirement of light weight.
According to the vehicle of the embodiment of the third aspect of the present application, comprising: the battery pack in the above embodiment.
According to the vehicle of the embodiment of the application, the technical effect of the battery pack is consistent with that of the battery pack, and the description is omitted here.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery pack case (100), comprising:
a base plate (10);
the side plates (20) are arranged on the peripheral side edge of the bottom plate (10), and the end parts of the side plates (20) are sequentially connected to limit an accommodating space with the bottom plate (10); wherein
At least one of the side plates (20) is configured as a carbon fiber composite material piece, and the side plate (20) configured as a carbon fiber composite material piece has a cavity.
2. The battery pack case (100) according to claim 1, wherein the side plate (20) comprises: the front-rear-side-plate-type automobile seat is characterized by comprising a front side plate (20a), a left rear side plate (20b), a rear side plate (20c) and a right rear side plate (20d), wherein the ends of the front side plate (20a), the left rear side plate (20b), the rear side plate (20c) and the right rear side plate (20d) are sequentially connected, and at least one of the front side plate (20a), the left rear side plate (20b), the right rear side plate (20d) and the rear side plate (20c) is made of a carbon fiber composite material.
3. The battery pack case (100) according to claim 2, wherein the front side plate (20a), the left rear side plate (20b), the rear side plate (20c), and the right rear side plate (20d) each include: the device comprises an upper plate (21) and a lower plate (22), wherein the same side of the upper plate (21) and the lower plate (22) is connected through a vertical plate (23) to define the cavity.
4. The battery pack box (100) of claim 3, wherein reinforcing ribs are arranged at intervals in the cavity, and two ends of each reinforcing rib respectively push against the vertical plates (23) on two sides of the top plate.
5. The battery pack case (100) according to claim 3, wherein the lower plate (22) is connected to the base plate (10).
6. The battery pack case (100) according to claim 2, wherein the end of the side plate (20) is provided with a connecting portion for connecting with a connecting portion of the other side plate (20).
7. The battery pack case body (100) according to claim 6, wherein the connection part is formed as a chamfer in which the end of the side plate (20) is inclined inward.
8. The battery pack case (100) according to claim 1, wherein the bottom plate (10) comprises: the bottom plate comprises a bottom plate body (11) and a bearing beam (12) positioned above the bottom plate body (11), wherein the bearing beam (12) and the bottom plate (10) are integrally formed or fixed on the bottom plate (10).
9. A battery pack, comprising: the cabinet (100) of any one of claims 1 to 8.
10. A vehicle, characterized by comprising: the battery pack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110257468.9A CN113161668A (en) | 2021-03-09 | 2021-03-09 | Battery pack box, battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110257468.9A CN113161668A (en) | 2021-03-09 | 2021-03-09 | Battery pack box, battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113161668A true CN113161668A (en) | 2021-07-23 |
Family
ID=76886756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110257468.9A Pending CN113161668A (en) | 2021-03-09 | 2021-03-09 | Battery pack box, battery pack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113161668A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898711A (en) * | 2017-02-28 | 2017-06-27 | 北京新能源汽车股份有限公司 | Battery pack lower shell, battery pack and vehicle |
| CN109103370A (en) * | 2018-07-05 | 2018-12-28 | 武汉理工大学 | A kind of light-weight electric automobile battery case |
-
2021
- 2021-03-09 CN CN202110257468.9A patent/CN113161668A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898711A (en) * | 2017-02-28 | 2017-06-27 | 北京新能源汽车股份有限公司 | Battery pack lower shell, battery pack and vehicle |
| CN109103370A (en) * | 2018-07-05 | 2018-12-28 | 武汉理工大学 | A kind of light-weight electric automobile battery case |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |
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| RJ01 | Rejection of invention patent application after publication |