CN111430621A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN111430621A CN111430621A CN202010312988.0A CN202010312988A CN111430621A CN 111430621 A CN111430621 A CN 111430621A CN 202010312988 A CN202010312988 A CN 202010312988A CN 111430621 A CN111430621 A CN 111430621A
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- China
- Prior art keywords
- plate
- upper cover
- cover plate
- battery pack
- support plate
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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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery pack, which comprises: the device comprises a shell, a positioning device and a control device, wherein the shell is provided with an upper cover plate, a frame and a support plate, and the upper cover plate, the frame and the support plate jointly define an installation space; the battery module, the battery module has end plate and a plurality of electric core, and is a plurality of electric core stacks gradually, and is a plurality of electric core all with the upper cover plate with the backup pad is connected and is located the outermost end the outside of electric core is equipped with the end plate, the end plate with the upper cover plate with the backup pad is all connected. From this, all be connected with upper cover plate and backup pad through end plate, a plurality of electric core, can install end plate and a plurality of electric core in the battery package firmly, can prevent that the end plate is not hard up, also can make the mounted position of electric core more stable to can promote the assembly reliability of battery package.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery pack.
Background
In the correlation technique, be provided with the end plate in the battery package, the end plate is connected with electric core, is connected through the crossbeam in end plate and the battery package and fixes electric core in the battery package, but the installation intensity of end plate is not enough, leads to the end plate to become flexible easily to the mounted position that leads to electric core is unstable.
Disclosure of Invention
In view of this, the present invention is directed to a battery pack, which can solve the problem that an end plate is easy to loosen, and can also solve the problem that the installation position of a battery cell is unstable.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a battery pack includes: the device comprises a shell, a positioning device and a control device, wherein the shell is provided with an upper cover plate, a frame and a support plate, and the upper cover plate, the frame and the support plate jointly define an installation space; the battery module, the battery module has end plate and a plurality of electric core, and is a plurality of electric core stacks gradually, and is a plurality of electric core all with the upper cover plate with the backup pad is connected and is located the outermost end the outside of electric core is equipped with the end plate, the end plate with the upper cover plate with the backup pad is all connected.
In some examples of the invention, an insulating filler is arranged between two adjacent battery cells.
In some examples of the invention, the lower surface of the support plate is provided with a first connecting structure, and the first connecting structure is connected with a vehicle.
In some examples of the invention, the first connection structure comprises: the connecting plate, the connecting plate with the backup pad prescribes a limit to the assembly space jointly, be equipped with in the assembly space with the connecting piece that the vehicle is connected.
In some examples of the invention, the connecting plate is configured to be 'U' -shaped in longitudinal section, the bottom wall of the connecting plate is provided with a fitting hole, and the connecting member is arranged on the upper surface of the connecting plate and corresponds to the fitting hole; the end part of the connecting plate opposite to the supporting plate is provided with a connecting flanging, and the connecting flanging is connected with the supporting plate.
In some examples of the present invention, an edge of the support plate is recessed toward the upper cover plate in a width direction of the housing to form a notch, and the connection plate and the notch together define the fitting space.
In some examples of the invention, the upper surface of the upper cover plate is provided with a reinforcing plate and/or a second connecting structure; and heat exchange flow channels are arranged in the upper cover plate and/or the supporting plate.
In some examples of the invention, the end plate includes: the end plate comprises an end plate body, wherein the end plate body is provided with an upper cover plate connecting part and a support plate connecting part, the upper cover plate connecting part is connected with the upper cover plate, and the support plate connecting part is connected with the support plate.
In some examples of the present invention, the upper cover plate connection part is provided with a first connection hole connected with the upper cover plate; a first sealing groove is formed in the upper surface of the upper cover plate connecting part, and surrounds the first connecting hole; the supporting plate connecting part is provided with a second connecting hole, and the second connecting hole is connected with the supporting plate; the lower surface of the support plate connecting part is provided with a second sealing groove, and the second sealing groove surrounds the second connecting hole.
In some examples of the present invention, the upper surface of the end plate body is provided with a third connection hole; the height of the third connecting hole is smaller than that of the upper cover plate connecting part.
Compared with the prior art, the battery pack has the following advantages:
according to the battery pack, the end plate and the plurality of battery cells are connected with the upper cover plate and the supporting plate, so that the end plate and the plurality of battery cells can be stably installed in the battery pack, the end plate can be prevented from loosening, the installation positions of the battery cells can be more stable, and the assembly reliability of the battery pack can be improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a battery pack according to an embodiment of the present invention, the battery pack being provided with a reinforcing plate;
fig. 2 is a schematic diagram of a battery pack according to an embodiment of the invention, the battery pack being provided with a second connection structure;
fig. 3 is a schematic diagram of an upper cover plate, a support plate and a frame of a battery pack according to an embodiment of the present invention as separate components;
fig. 4 is a cross-sectional view of the battery pack depicted in fig. 3;
fig. 5 is a schematic view illustrating an upper cover plate and a frame of a battery pack according to an embodiment of the present invention as an integrally formed part;
fig. 6 is a cross-sectional view of the battery pack depicted in fig. 5;
fig. 7 is a cross-sectional view of a battery pack according to an embodiment of the present invention, in which a support plate and a frame are integrally formed;
fig. 8 is a sectional view of a battery pack according to an embodiment of the present invention, in which a notch is formed;
fig. 9 is a schematic view illustrating a first connection structure of a battery pack according to an embodiment of the present invention;
fig. 10 is a schematic view of the internal structure of a battery pack according to an embodiment of the present invention;
fig. 11 is a schematic view of an assembly of an end plate and a plurality of cells of a battery pack according to an embodiment of the invention;
fig. 12 is an enlarged view at a in fig. 11.
Description of reference numerals:
a battery pack 20;
a housing 200; an upper cover plate 201; a support plate 202; a cell 203; a bezel 204; an installation space 205; a notch 206; a reinforcing plate 207; a second connecting structure 208; a frame body 209; the upper cover plate is connected with a flange 210; the support plate is connected with a flange 211;
a first connection structure 212; a connecting plate 213; the fitting space 214; a connecting member 215; a fitting hole 216; a connecting flange 217;
a protective plate 218; an explosion-proof valve fitting hole 219; electrical equipment mounting holes 2190;
an end plate 40; an end plate body 401; an upper cover plate connecting portion 402; a support plate connecting portion 403; a first connection hole 404; a first seal groove 405; a second connection hole 406; a third connection hole 408; reinforcing ribs 409;
the battery module 90.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 12, a battery pack 20 according to an embodiment of the present invention includes: a case 200, and a battery module 90. The housing 200 has an upper cover plate 201, a bezel 204, and a support plate 202. The frame 204 is connected between the upper cover plate 201 and the support plate 202, the housing 200 may be provided with an explosion-proof valve assembly hole 219, the explosion-proof valve assembly hole 219 is used for assembling a vent valve or an explosion-proof valve, the frame 204 may be provided with an electrical apparatus assembly hole 2190, and the electrical apparatus assembly hole 2190 may be used for assembling and connecting an electrical apparatus plug-in unit and a cooling plug-in unit. Moreover, the upper cover plate 201, the frame 204 and the support plate 202 together define a mounting space 205, and the battery cells 203 and other components of the battery pack 20 are disposed in the mounting space 205.
After the battery pack 20 is assembled, the end plate 40 is connected to the upper cover plate 201 and the support plate 202 at the same time, and the plurality of battery cells 203 are connected to the upper cover plate 201 and the support plate 202, compared with the prior art, the end plate 40 can be stably installed in the battery pack 20, so that the end plate 40 can be prevented from loosening, the plurality of battery cells 203 can be reliably fixed in the battery pack 20, and the installation positions of the battery cells 203 can be more stable. Moreover, the number of parts for assembling the battery module 90 can be greatly reduced, and the installation space 205 in the battery pack 20 can be saved, so that the space utilization rate in the battery pack 20 can be improved, the arrangement number of the electric cores in the battery pack 20 can be increased, and the energy density of the battery pack 20 can be improved.
It should be noted that, the battery cell 203 is directly connected to the upper cover plate 201 and the support plate 202 by gluing, which saves a lot of bolt connection structures and space required for connection, so that the casing 200 of the battery pack 20 can be designed very simply, and the material, structure, weight and cost of the battery pack 20 are reduced. The battery pack 20 may have a collecting unit and a cutting unit therein, and the cutting unit may include components such as a relay and a fuse. The control unit may be externally disposed outside the battery pack 20, or may be disposed inside the battery pack 20.
Therefore, the end plate 40 and the plurality of cells 203 are connected with the upper cover plate 201 and the support plate 202, the end plate 40 and the plurality of cells 203 can be stably installed in the battery pack 20, the end plate 40 can be prevented from loosening, the installation positions of the cells 203 can be more stable, and the assembly reliability of the battery pack 20 can be improved.
In some embodiments of the present invention, an insulating filler may be disposed between two adjacent battery cells 203, where the filler is capable of spacing the two adjacent battery cells 203, maintaining a gap between the two adjacent battery cells 203, and preventing heat conduction between the two adjacent battery cells 203. Meanwhile, the upper surface of the battery cell 203 is bonded with the upper cover plate 201 through gluing, the lower surface of the battery cell 203 is connected with the support plate 202 through gluing, and the filler is arranged to prevent the glue from flowing or overflowing to a large extent between two adjacent battery cells 203.
In some embodiments of the present invention, the lower surface of the support plate 202 may be provided with a first connection structure 212, the first connection structure 212 being connected with the vehicle, for example: the first connecting structure 212 is connected with a vehicle body of the vehicle. Wherein, the in-process that battery package 20 was installed on the vehicle, through be provided with first connection structure 212 at the lower surface of backup pad 202, use the switching roof beam to connect and just can install battery package 20 on the vehicle between vehicle and battery package 20, compare with prior art, can make battery package 20 save the arrangement of installation roof beam, can reduce the weight of battery package 20, and, through be provided with first connection structure 212 at the lower surface of backup pad 202, change the structure and the size of switching roof beam, can make battery package 20 assemble on the vehicle of different wheelbases, sizes, can promote the commonality of battery package 20, thereby can save the required manpower and the material resources of research and development battery package 20, also can reduce the research and development expense of battery package 20, and then can reduce the manufacturing cost of battery package 20.
In some embodiments of the present invention, as shown in fig. 4, 6, 7, and 8, the first connection structure 212 may include: the connection plate 213, the connection plate 213 and the support plate 202 together define a fitting space 214, a connection member 215 connected to the vehicle may be disposed in the fitting space 214, and the connection member 215 may be configured as a nut. When the battery pack 20 is mounted on a vehicle, the battery pack 20 can be detachably mounted on the vehicle by using bolts and the connecting member 215 (bolts), so that the battery pack 20 can be reliably mounted on the vehicle, and the battery pack 20 can be easily attached and detached.
In some embodiments of the present invention, as shown in fig. 4, 6, 7, 8 and 9, the connecting plate 213 may be configured to have a "U" shape in longitudinal section, the bottom wall of the connecting plate 213 may be provided with a fitting hole 216, the connecting member 215 may be provided on the upper surface of the connecting plate 213, and the connecting member 215 may be provided corresponding to the fitting hole 216, wherein, when the battery pack 20 is mounted on a vehicle, a bolt is connected to the connecting member 215 after passing through the fitting hole 216, such an arrangement may enable the bolt to be fitted to the connecting member 215, may facilitate the connection of the bolt to the connecting member 215, and may further make the arrangement of the fitting hole 216 more reasonable.
In some embodiments of the present invention, the end of the connection plate 213 opposite to the support plate 202 may be provided with a connection flange 217, the connection flange 217 being connected with the support plate 202, for example: the connecting flange 217 is welded to the support plate 202, wherein the contact area between the connecting plate 213 and the support plate 202 can be increased by providing the connecting flange 217, and the connecting plate 213 can be stably mounted on the support plate 202, so that the support plate 202 and the first connecting structure 212 can be prevented from being separated.
In some embodiments of the present invention, in the width direction of the housing 200, the width direction of the housing 200 refers to the left-right direction in fig. 8, the edge of the supporting plate 202 is recessed toward the upper cover plate 201 to form the notch 206, it should be noted that the first connecting structure 212 is arranged to extend along the length direction of the battery pack 20, the left edge and the right edge of the supporting plate 202 are recessed toward the upper cover plate 201 to form the notch 206, and the connecting plate 213 and the notch 206 together define the assembling space 214, so that the height of the battery pack 20 can be reduced, and the ground clearance of the vehicle can be raised after the battery pack 20 is mounted on the vehicle.
In some embodiments of the present invention, as shown in fig. 1 and 2, the upper surface of the upper cover plate 201 may be provided with a reinforcing plate 207 and/or a second connecting structure 208, and the manner of connecting the reinforcing plate 207, the second connecting structure 208 and the upper cover plate 201 is not limited to gluing, welding, or riveting. In addition, the reinforcing plate 207 can improve the structural strength of the upper cover plate 201, thereby preventing the upper cover plate 201 from being deformed. Moreover, the second connecting structure 208 can improve the structural strength of the upper cover plate 201, and the second connecting structure 208 can be connected with the vehicle and can also be used for connecting and fixing other parts on the vehicle.
In some embodiments of the present invention, a heat exchange flow channel may be disposed in the upper cover plate 201 and/or the support plate 202, and a cooling medium may flow in the heat exchange flow channel, so that the upper cover plate 201 and the support plate 202 have cooling and heating functions, and the temperature of the battery pack 20 may be adjusted, so that the temperature of the battery pack 20 may be maintained within a suitable temperature range.
In some embodiments of the present invention, as shown in fig. 3, the upper cover plate 201 and/or the support plate 202 may be provided with a service hole and a protection plate 218, and the protection plate 218 may open or close the service hole. The frame 204 may also be provided with a maintenance hole and a protection plate 218, and when the parts in the battery pack 20 do not need to be maintained, the protection plate 218 is fixed at the maintenance hole through a bolt, so that the maintenance hole is closed, and when the parts in the battery pack 20 need to be maintained, the protection plate 218 is detached, so that the maintenance hole is opened, and the parts in the battery pack 20 can be maintained conveniently.
According to the first embodiment of the present invention, as shown in fig. 1 to 4, the frame 204 may include: the frame comprises a frame body 209, an upper cover plate connecting flange 210 and a support plate connecting flange 211, wherein the upper end of the frame body 209 is provided with the upper cover plate connecting flange 210, the lower end of the frame body 209 is provided with the support plate connecting flange 211, the upper cover plate connecting flange 210 is connected with the upper cover plate 201 through a bolt, and the support plate connecting flange 211 is connected with the support plate 202 through a bolt. Moreover, the joints between the upper cover plate connecting flange 210 and the upper cover plate 201 and between the support plate connecting flange 211 and the support plate 202 can be coated with sealant or filled with sealing foam, so that the upper cover plate connecting flange 210 and the upper cover plate 201 and the support plate connecting flange 211 and the support plate 202 can be sealed.
According to a second embodiment of the present invention, as shown in fig. 5 and 6, the upper cover plate 201 and the bezel 204 may be configured as an integrally formed component, and the bezel 204 may include: the turn-ups 211 is connected to frame body 209 and backup pad, and the upper end and the upper cover plate 201 integrated into one piece of frame body 209, the lower extreme of frame body 209 can be provided with the backup pad and connect the turn-ups 211, and the turn-ups 211 is connected with the backup pad 202 to the backup pad. The difference between this embodiment and the first embodiment is that the upper cover plate 201 and the frame 204 are integrally formed, and the upper cover plate connecting flange 210 is omitted.
According to a third embodiment of the present invention, as shown in fig. 7, the supporting plate 202 and the frame 204 are configured as an integral molding member, and the frame 204 may include: the frame body 209 and the upper cover plate connecting flange 210, the upper end of the frame body 209 can be provided with the upper cover plate connecting flange 210, and the lower end of the frame body 209 and the support plate 202 are integrally formed. The difference between this embodiment and the first embodiment is that the supporting plate 202 and the frame 204 are integrally formed, and the supporting plate connecting flange 211 is omitted.
As shown in fig. 10-12, the end plate 40 may include: the end plate body 401, the electric core 203 in end plate body 401 and the battery package 20 is connected, it should explain that, a plurality of electric cores 203 stack the back together in proper order in the thickness direction of electric core 203, through two end plates 40 with a plurality of electric cores 203 clamp between two end plates 40, adjacent electric core 203 bonds together. The end plate body 401 may be provided with an upper cover plate connection portion 402 and a support plate connection portion 403, the upper cover plate connection portion 402 being connected with the upper cover plate 201, and the support plate connection portion 403 being connected with the support plate 202.
It should be explained that, a plurality of electric cores 203 stack together in proper order in the thickness direction of electric core 203 and form the module, retrain a plurality of electric cores 203 through two end plates 40, then carry out electric connection between electric core 203 to the sampling pencil is connected. Wherein, upper cover plate connecting portion 402 and backup pad connecting portion 403 all can set up to a plurality ofly, after the assembly of battery package 20 was accomplished, upper cover plate connecting portion 402 on the end plate body 401 is connected with upper cover plate 201, backup pad connecting portion 403 on the end plate body 401 is connected with backup pad 202, be connected with upper cover plate 201 through upper cover plate connecting portion 402, backup pad connecting portion 403 is connected with backup pad 202, can be connected end plate 40 on upper cover plate 201 and backup pad 202 simultaneously, compare with prior art, can install end plate 40 in battery package 20 firmly, thereby can prevent that end plate 40 is not hard up, also can fix a plurality of electric cores 203 reliably in battery package 20, and then can make the mounted position of electric core 203 more stable.
In some embodiments of the present invention, as shown in fig. 12, the upper cover plate connection part 402 may be provided with a first connection hole 404, and the first connection hole 404 is connected to the upper cover plate 201, wherein when the upper cover plate connection part 402 is assembled with the upper cover plate 201, a bolt may be used to connect the upper cover plate connection part 402 and the upper cover plate 201 together through the first connection hole 404, so that the upper cover plate connection part 402 and the upper cover plate 201 can be reliably assembled together, and the upper cover plate connection part 402 and the upper cover plate 201 can be prevented from being separated. In addition, the end plate 40 can be detachably attached to the upper cover plate 201, and maintenance of the battery pack 20 can be facilitated.
In some embodiments of the present invention, as shown in fig. 12, a first sealing groove 405 may be disposed on an upper surface of the upper cover plate connecting portion 402, and the first sealing groove 405 is disposed around the first connecting hole 404, wherein a sealing ring may be disposed in the first sealing groove 405, and after the end plate 40 and the upper cover plate 201 are assembled, the sealing between the end plate 40 and the upper cover plate 201 may be achieved by disposing the sealing ring in the first sealing groove 405, so that the sealing performance of the battery pack 20 may be improved.
In some embodiments of the present invention, as shown in fig. 12, the supporting plate connecting portion 403 may be provided with a second connecting hole 406, and the second connecting hole 406 is connected to the supporting plate 202, wherein when the supporting plate connecting portion 403 is assembled with the supporting plate 202, a bolt or a screw may be used to connect the supporting plate connecting portion 403 and the supporting plate 202 together through the second connecting hole 406, so that the supporting plate connecting portion 403 and the supporting plate 202 can be reliably assembled together, and the supporting plate connecting portion 403 and the supporting plate 202 can be prevented from being separated. Also, the end plate 40 can be detachably mounted on the support plate 202, which can further facilitate maintenance of the battery pack 20.
In some embodiments of the present invention, a second sealing groove may be disposed on a lower surface of the support plate connection portion 403, and the second sealing groove is disposed around the second connection hole 406, wherein a sealing ring may be disposed in the second sealing groove, and after the end plate 40 and the support plate 202 are assembled, the sealing between the end plate 40 and the support plate 202 may be achieved by disposing the sealing ring in the second sealing groove, so that the sealing performance of the battery pack 20 may be further improved.
In some embodiments of the present invention, the upper cover plate connecting portion 402 may be disposed at the upper end of the end plate body 401, and the supporting plate connecting portion 403 may be disposed at the lower end of the end plate body 401, such arrangement may make a distance between the upper cover plate connecting portion 402 and the upper cover plate 201 and a distance between the supporting plate connecting portion 403 and the supporting plate 202 more suitable, which may facilitate assembly of the upper cover plate connecting portion 402 and the upper cover plate 201, and may also facilitate assembly of the supporting plate connecting portion 403 and the supporting plate 202, so that the arrangement positions of the upper cover plate connecting portion 402 and the supporting plate connecting portion 403 may be more reasonable.
In some embodiments of the present invention, as shown in fig. 12, the upper surface of the end plate body 401 may be provided with a third connection hole 408, and the third connection hole 408 may be used to connect with other components in the battery pack 20, so that the other components in the battery pack 20 may be fixed.
In some embodiments of the present invention, as shown in fig. 12, the height of the upper end of the third connecting hole 408 is smaller than the height of the upper end of the upper cover plate connecting portion 402 in the height direction of the end plate 40, i.e., in the up-down direction in fig. 12, so that the third connecting hole 408 and the upper cover plate connecting portion 402 can be arranged in a staggered manner in the up-down direction of the end plate 40, and after the end plate 40 and the upper cover plate 201 are mounted together, the upper cover plate 201 can be prevented from interfering with the components mounted at the third connecting hole 408, and thus the end plate 40 and the upper cover plate 201 can be reliably assembled together.
Also, the third connection hole 408 is located at the end of the upper surface of the end plate body 401 in the length direction of the end plate 40, i.e., the left-right direction in fig. 12, so that the third connection hole 408 is spaced apart from the upper cover plate connection portion 402 in the length direction of the end plate 40, and after the end plate 40 and the upper cover plate 201 are mounted together, the upper cover plate 201 can be further prevented from interfering with parts mounted at the third connection hole 408, so that it is possible to further ensure that the end plate 40 and the upper cover plate 201 are reliably assembled together.
In some embodiments of the present invention, as shown in fig. 12, the outer surface of the end plate body 401 may be provided with a reinforcing rib 409, it should be noted that when the end plate 40 is assembled with the battery cell 203, a surface of the end plate body 401 attached to the battery cell 203 is an attachment surface, the outer surface of the end plate body 401 refers to a surface of the end plate body 401 opposite to the attachment surface, the reinforcing rib 409 may be provided as a strip, a plurality of reinforcing ribs 409 may be arranged in a staggered manner, and the reinforcing rib 409 has a function of a reinforcing structure, so that the structural strength of the end plate body 401 can be improved, and the end plate body 401 can be prevented.
According to the energy storage device of the embodiment of the invention, the battery pack 20 comprises the battery pack 20 of the above embodiment, the battery pack 20 is arranged on the energy storage device, and the battery pack 20 can stably install the end plate 40 and the plurality of battery cells 203 in the battery pack 20, so that the end plate 40 can be prevented from loosening, the installation positions of the battery cells 203 can be more stable, and the assembly reliability of the battery pack 20 can be improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A battery pack (20), comprising:
a housing (200), the housing (200) having an upper cover plate (201), a bezel (204), and a support plate (202), the upper cover plate (201), the bezel (204), and the support plate (202) collectively defining a mounting space (205);
battery module (90), battery module (90) have end plate (40) and a plurality of electric core (203), and are a plurality of electric core (203) range upon range of in proper order, and are a plurality of electric core (203) all with upper cover plate (201) with backup pad (202) are connected and are located the outermost the outside of electric core (203) is equipped with end plate (40), end plate (40) with upper cover plate (201) with backup pad (202) all connect.
2. The battery pack (20) of claim 1, wherein adjacent two of the cells (203) have an insulating filler therebetween.
3. Battery pack (20) according to claim 1, wherein the lower surface of the support plate (202) is provided with a first connecting structure (212), the first connecting structure (212) being connected to a vehicle.
4. The battery pack (20) of claim 3, wherein the first connection structure (212) comprises: the connecting plate (213) and the supporting plate (202) jointly define a mounting space (214), and a connecting piece (215) connected with the vehicle is arranged in the mounting space (214).
5. The battery pack (20) according to claim 4, wherein the connecting plate (213) is configured in a "U" shape in longitudinal section, a bottom wall of the connecting plate (213) is provided with a fitting hole (216), and the connecting member (215) is provided on an upper surface of the connecting plate (213) and corresponds to the fitting hole (216);
the end part, opposite to the support plate (202), of the connecting plate (213) is provided with a connecting flanging (217), and the connecting flanging (217) is connected with the support plate (202).
6. The battery pack (20) according to claim 4, wherein an edge of the support plate (202) is recessed toward the upper cover plate (201) in a width direction of the case (200) to form a notch (206), and the connection plate (213) defines the fitting space (214) together with the notch (206).
7. The battery pack (20) according to claim 1, wherein the upper surface of the upper cover plate (201) is provided with a reinforcing plate (207) and/or a second connecting structure (208);
and heat exchange flow channels are arranged in the upper cover plate (201) and/or the support plate (202).
8. The battery pack (20) of claim 1, wherein the end plate (40) comprises: the end plate comprises an end plate body (401), wherein the end plate body (401) is provided with an upper cover plate connecting part (402) and a support plate connecting part (403), the upper cover plate connecting part (402) is connected with the upper cover plate (201), and the support plate connecting part (403) is connected with the support plate (202).
9. The battery pack (20) according to claim 8, wherein the upper cover connection part (402) is provided with a first connection hole (404), the first connection hole (404) being connected with the upper cover (201);
a first sealing groove (405) is formed in the upper surface of the upper cover plate connecting part (402), and the first sealing groove (405) surrounds the first connecting hole (404);
the support plate connecting part (403) is provided with a second connecting hole (406), and the second connecting hole (406) is connected with the support plate (202);
the lower surface of the support plate connecting part (403) is provided with a second sealing groove which surrounds the second connecting hole (406).
10. The battery pack (20) according to claim 8, wherein the end plate body (401) is provided at an upper surface thereof with a third connecting hole (408);
the height of the third connecting hole (408) is less than that of the upper cover plate connecting part (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312988.0A CN111430621B (en) | 2020-04-20 | 2020-04-20 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312988.0A CN111430621B (en) | 2020-04-20 | 2020-04-20 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111430621A true CN111430621A (en) | 2020-07-17 |
| CN111430621B CN111430621B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010312988.0A Active CN111430621B (en) | 2020-04-20 | 2020-04-20 | Battery pack |
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| CN (1) | CN111430621B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071837A1 (en) * | 2021-10-29 | 2023-05-04 | 宁德时代新能源科技股份有限公司 | Battery and power consumption device |
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| CN206907797U (en) * | 2017-04-28 | 2018-01-19 | 宝沃汽车（中国）有限公司 | Battery modules and the vehicle with the battery modules |
| CN110085780A (en) * | 2019-05-31 | 2019-08-02 | 杭州捷能科技有限公司 | A kind of battery modules of light-high-strength |
| CN210272597U (en) * | 2019-07-05 | 2020-04-07 | 欣旺达电动汽车电池有限公司 | Battery module end plate and battery module |
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| CN206907797U (en) * | 2017-04-28 | 2018-01-19 | 宝沃汽车（中国）有限公司 | Battery modules and the vehicle with the battery modules |
| CN110085780A (en) * | 2019-05-31 | 2019-08-02 | 杭州捷能科技有限公司 | A kind of battery modules of light-high-strength |
| CN210272597U (en) * | 2019-07-05 | 2020-04-07 | 欣旺达电动汽车电池有限公司 | Battery module end plate and battery module |
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| WO2023071837A1 (en) * | 2021-10-29 | 2023-05-04 | 宁德时代新能源科技股份有限公司 | Battery and power consumption device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111430621B (en) | 2022-03-22 |
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Address after: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Address before: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: SVOLT Energy Technology Co.,Ltd. |