CN215342840U - Power battery package structure - Google Patents
Power battery package structure Download PDFInfo
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- CN215342840U CN215342840U CN202121424643.0U CN202121424643U CN215342840U CN 215342840 U CN215342840 U CN 215342840U CN 202121424643 U CN202121424643 U CN 202121424643U CN 215342840 U CN215342840 U CN 215342840U
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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 utility model discloses a power battery pack structure which comprises a box body, a box cover and a module, wherein the box cover is arranged at the top of the box body, the module is arranged in the box body, the module comprises a plurality of electric cores and supports arranged at two ends of the electric cores, the height direction of the electric cores is parallel to the bottom of the box body, a first limiting structure is arranged between the supports and the bottom of the box body and used for limiting the displacement of the module relative to the side wall of the box body in the direction perpendicular to the height direction of the electric cores, a second limiting structure is arranged between the supports and the top of the box body and used for limiting the displacement of the module relative to the side wall of the box body in the height direction of the electric cores, and a cushion pad is arranged between the supports and the box cover and used for limiting the displacement of the module relative to the box body up and down. The battery pack internal module is simple in limiting, bolt fixing is reduced, battery pack cost is reduced, and assembling efficiency is high; and the battery core is laid down to reduce the influence of the battery core play on the aluminum bar welding in the vibration process.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a power battery pack structure.
Background
With the development of modern society and the enhancement of environmental awareness of people, more and more devices select lithium batteries as power sources, such as mobile phones, notebook computers, electric tools, electric vehicles and the like, and the lithium batteries used in the electric vehicles are also generally called power batteries. The battery pack is a finished battery which can be directly loaded on a vehicle, and is formed by connecting a plurality of battery cores in series and in parallel to form a module and then packaging the module in a box body. The module is fixed mostly in the power battery package at present adopts bolt fastening and sticky mode fixed, adopts the bolt fastening can increase operation process and time, and manual work and material cost are higher, and sticky mode then can not dismantle. And in order to restrict the module displacement in the battery package, pack a large amount of bubbles cotton in the box, this restraint mode reliability is low, and the module radiating effect is poor, very big reduction the factor of safety of battery package.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the problem of there are multiple defect to the fixed mode of installation of present module in the battery package box provides a power battery package structure, and this battery package carries out optimal design through the structure to box and module, can be in the box with the module restraint betterly, has reduced the bolt fastening, has reduced the battery package cost, and the battery package is joined in marriage efficiently.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a power battery package structure, includes box, case lid and module, the box top is located to the case lid, the module is located in the box, the module includes a plurality of electric cores and locates the support at electric core both ends, the direction of height of electric core is on a parallel with the bottom half, be equipped with first limit structure between support and the bottom half, first limit structure is used for injecing the module at the perpendicular to electric core direction of height displacement for the box lateral wall, be equipped with second limit structure between support and the box top, second limit structure is used for injecing the module at the electric core direction of height displacement for the box lateral wall, be equipped with the blotter between support and the case lid, the blotter is used for injecing the module for the displacement about the box.
According to the battery pack limiting device, the first limiting structure and the second limiting structure are arranged between the box body and the support to limit the moving freedom degree of the module relative to the side wall direction of the box body, and the cushion pad is arranged between the support and the box cover to limit the displacement of the module relative to the vertical direction of the box body, so that the module is well constrained in the battery pack, the module limiting mode is simple, bolt fixing is reduced, the cost of the battery pack is reduced, and the battery pack assembly efficiency is high; simultaneously because electric core adopts the flat mode of arranging of lying in the battery package, and battery package car back is the biggest at vertical direction vibration volume, and the aluminium bar has avoided the biggest direction of vibration volume to module electricity connection promptly to reduce the influence of vibration in-process electric core drunkenness to aluminium bar welding.
As a preferable scheme of the utility model, the first limiting structure comprises a positioning hole arranged at the lower end of the support and a positioning column correspondingly arranged at the bottom of the box body, the positioning hole is a waist-shaped hole, the length direction of the positioning hole is arranged along the height direction of the battery cell, and the width of the positioning hole is matched with the outer diameter of the positioning column. Through set up waist type locating hole and bottom half on the support and set up the reference column, put into the box with the module during installation and make the reference column stretch into in the locating hole, the reference column is adjustable for locating hole length direction position moreover to the displacement of module relative to the box lateral wall in the perpendicular to electricity core direction of height has been injectd.
As a preferred scheme of the utility model, the second limiting structure comprises a buckle arranged on the bracket and a limiting plate correspondingly arranged on the side wall of the box body, the buckle protrudes out of the bracket body in the height direction of the battery cell, and the buckle and the limiting plate form pressure contact after the module is installed in the box body. Through set up the limiting plate on buckle and the box lateral wall on setting up the support, the module is installed in the box after, utilizes buckle and limiting plate to form pressure contact and compresses tightly the module to the displacement of module for the box lateral wall in electric core direction of height has been injectd.
As a preferred scheme of the utility model, the second limiting structure comprises elastic cards arranged on two sides of the module and limiting plates correspondingly arranged on the side walls of the box body, the elastic cards are arranged along the height direction of the battery cell and detachably connected with the limiting plates, and the elastic cards are in pressure contact with the limiting plates after the module is installed in the box body. Through set up the limiting plate on the box lateral wall to installation elasticity card on the limiting plate utilizes elasticity card and limiting plate to form pressure contact and compresses tightly the module, thereby has injectd the displacement of module relative to the box lateral wall in electric core direction of height.
As a preferable scheme of the utility model, the elastic card is in a shape structure of twice U-shaped bending, and the size of at least one U-shaped opening on the elastic card is matched with the thickness of the limiting plate. After the elastic card is arranged to be of the structure, a U-shaped opening of the elastic card is hung on the top end of the limiting plate during installation, and the elastic card is convenient to disassemble and assemble and the battery pack is convenient to assemble.
As the preferable scheme of the utility model, a matched guide round angle is arranged between the lower end of the bracket and the bottom of the box body. When battery packing is in time, utilize the direction fillet of bottom half and support lower extreme to assemble the direction for the module is put into in the box the position more accurate, so that the locating hole of support lower extreme embolias on the reference column of bottom half, further improves battery packing and joins in marriage efficiency, also can reduce the bolt moreover and fix the module, also can play reduce cost's effect.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
according to the battery pack limiting device, the first limiting structure and the second limiting structure are arranged between the box body and the support to limit the moving freedom degree of the module relative to the side wall direction of the box body, and the cushion pad is arranged between the support and the box cover to limit the displacement of the module relative to the vertical direction of the box body, so that the module is well constrained in the battery pack, the module limiting mode is simple, bolt fixing is reduced, the cost of the battery pack is reduced, and the battery pack assembly efficiency is high; simultaneously because electric core adopts the flat mode of arranging of lying in the battery package, and battery package car back is the biggest at vertical direction vibration volume, and the aluminium bar has avoided the biggest direction of vibration volume to module electricity connection promptly to reduce the influence of vibration in-process electric core drunkenness to aluminium bar welding.
Drawings
Fig. 1 is a schematic structural diagram of a power battery pack according to the present invention.
Fig. 2 is a schematic diagram of the module shown in fig. 1.
Fig. 3 is a schematic view of the case of fig. 1.
FIG. 4 is a schematic view of the lower end of the module and the bottom of the case.
FIG. 5 is a schematic view of the upper end of the module cooperating with a side limiting plate of the case.
Fig. 6 is a schematic view of the elastic card of the present invention after installation.
The labels in the figure are: the battery box comprises a box body 1, a positioning column 11, a limiting plate 12, a box cover 2, a module 3, an electric core 31, a support 32, a positioning hole 321, a positioning buckle 322, a battery management system 33, a cushion pad 4, an elastic card 5 and an R-guide round angle.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
The embodiment provides a power battery pack structure;
as shown in fig. 1 to 5, the power battery pack structure in this embodiment includes a box body 1, a box cover 2 and a module 3, the box cover 2 is disposed on the top of the box body 1, the module 3 is disposed in the box body 1, the module 3 includes a plurality of cylindrical battery cells 31, brackets 32 disposed at two ends of the battery cells 31, and a battery management system 33 disposed on the brackets 32, a height direction of the battery cells 31 is parallel to the bottom of the box body, a first limit structure is disposed between the brackets 32 and the bottom of the box body 1, the first limit structure is configured to limit displacement of the module 3 relative to a sidewall of the box body 1 in a direction perpendicular to a height (axis) direction of the battery cells 31, a second limit structure is disposed between the brackets 32 and the top of the box body 1, the second limit structure is configured to limit displacement of the module 3 relative to the sidewall of the box body 1 in the height (axis) direction of the battery cells 31, a cushion 4 is disposed between the brackets 32 and the box cover 2, the cushion pad 4 is used for limiting the displacement of the module 3 relative to the box body 1 in the up-and-down direction.
According to the battery pack limiting device, the first limiting structure and the second limiting structure are arranged between the box body and the support to limit the moving freedom degree of the module relative to the side wall direction of the box body, and the cushion pad is arranged between the support and the box cover to limit the displacement of the module relative to the vertical direction of the box body, so that the module is well constrained in the battery pack, the module limiting mode is simple, bolt fixing is reduced, the cost of the battery pack is reduced, and the battery pack assembly efficiency is high; simultaneously because electric core adopts the flat mode of arranging of lying in the battery package, and battery package car back is the biggest at vertical direction vibration volume, and the aluminium bar has avoided the biggest direction of vibration volume to module electricity connection promptly to reduce the influence of vibration in-process electric core drunkenness to aluminium bar welding.
In this embodiment, the first limiting structure includes two positioning holes 321 disposed at the lower end of each support 32 and a positioning column 11 correspondingly disposed at the bottom of the box body 1, the positioning holes 321 are waist-shaped holes and are arranged along the height (axis) direction of the battery cell 31 in the length direction, and the width of the positioning holes 321 is matched with the outer diameter of the positioning column 11. Through set up waist type locating hole and bottom half on the support and set up the reference column, put into the box with the module during installation and make the reference column stretch into in the locating hole, the reference column is adjustable for locating hole length direction position moreover to the displacement of module relative to the box lateral wall in the perpendicular to electricity core direction of height has been injectd.
In this embodiment, the second limiting structure includes two buckles 322 disposed on each bracket 32 and the corresponding limiting plate 12 disposed on the side wall of the box 1, the buckles 322 protrude from the body of the bracket 32 in the direction of the height (axis) of the battery cell 31, that is, the whole module 3 has four buckles 322, and two pairs of the buckles are arranged oppositely, the side wall of the box 1 has four limiting plates 12, and after the module 3 is installed in the box 1, the buckles 322 and the limiting plates 12 form pressure contact. Set up the limiting plate through setting up on buckle and the box lateral wall on two supports, the module is installed in the box after, utilizes the buckle on two supports to form pressure contact with the limiting plate respectively and compress tightly the module to the displacement of module for the box lateral wall in electric core direction of height has been injectd.
In this embodiment, a guiding round corner R is disposed between the lower end of the support 32 and the bottom of the box 1. When battery packing is in time, utilize the direction fillet of bottom half and support lower extreme to assemble the direction for the module is put into in the box the position more accurate, so that the locating hole of support lower extreme embolias on the reference column of bottom half, further improves battery packing and joins in marriage efficiency, also can reduce the bolt moreover and fix the module, also can play reduce cost's effect. Specifically, the guiding round corners R on the box body 1 are arranged on rib plates at the bottom of the box body 1, two rib plates are correspondingly arranged on each bracket 32 for supporting, and the lower end of each bracket 32 is provided with two guiding round corners R.
Example 2
As shown in fig. 6, the present embodiment is different from embodiment 1 in that: in this embodiment the second limit structure includes the elasticity card 5 of locating module 3 both sides and corresponds the limiting plate 12 of locating on the lateral wall of box 1, elasticity card 5 sets up and can dismantle with limiting plate 12 along electric core 31 height (axis) direction and be connected, and whole module 3 has four elasticity cards 5 promptly, and two liang of mutual dispositions, has four limiting plates 12 on the lateral wall of box 1, installs the back in box 1 at module 3, elasticity card 5 with limiting plate 12 forms pressure contact. Through set up the limiting plate on the box lateral wall to installation elasticity card on the limiting plate, utilize positive two elasticity cards of every support to form pressure contact and compress tightly the module with the limiting plate respectively, thereby injectd the displacement of module for the box lateral wall in electric core direction of height.
In this embodiment, the elastic card 5 is in a shape structure of two times of U-shaped bending, and the size of at least one U-shaped opening on the elastic card 5 is adapted to the thickness of the limiting plate 12. After the elastic card is arranged to be of the structure, a U-shaped opening of the elastic card is hung on the top end of the limiting plate during installation, and the elastic card is convenient to disassemble and assemble and the battery pack is convenient to assemble.
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 utility model, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a power battery package structure, its characterized in that, includes box, case lid and module, the box top is located to the case lid, the module is located in the box, the module includes a plurality of electric cores and locates the support at electric core both ends, the direction of height of electric core is on a parallel with the bottom half, be equipped with first limit structure between support and the bottom half, first limit structure is used for injecing the module at the perpendicular to electric core direction of height displacement for the box lateral wall, be equipped with second limit structure between support and the box top, second limit structure is used for injecing the module at the electric core direction of height displacement for the box lateral wall, be equipped with the blotter between support and the case lid, the blotter is used for injecing the module for the displacement about the box.
2. The power battery pack structure of claim 1, wherein the first limiting structure comprises a positioning hole and a positioning column, the positioning hole is arranged at the lower end of the support, the positioning column is correspondingly arranged at the bottom of the box body, the positioning hole is a kidney-shaped hole, the length direction of the positioning hole is arranged along the height direction of the battery cell, and the width of the positioning hole is matched with the outer diameter of the positioning column.
3. The power battery pack structure of claim 2, wherein the second limiting structure comprises a buckle disposed on the bracket and a limiting plate correspondingly disposed on a sidewall of the box, the buckle protrudes from the bracket body in a height direction of the battery cell, and the buckle is in pressure contact with the limiting plate after the module is mounted in the box.
4. The power battery pack structure of claim 2, wherein the second limiting structure comprises elastic clips disposed on two sides of the module and limiting plates correspondingly disposed on side walls of the box, the elastic clips are disposed along a height direction of the battery cell and detachably connected to the limiting plates, and after the module is mounted in the box, the elastic clips are in pressure contact with the limiting plates.
5. The power battery pack structure of claim 4, wherein the elastic clip is in a shape of two times of U-shaped bending, and the size of at least one U-shaped opening on the elastic clip is matched with the thickness of the limiting plate.
6. The power battery pack structure according to any one of claims 1 to 5, wherein a guiding fillet is arranged between the lower end of the bracket and the bottom of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121424643.0U CN215342840U (en) | 2021-06-25 | 2021-06-25 | Power battery package structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121424643.0U CN215342840U (en) | 2021-06-25 | 2021-06-25 | Power battery package structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215342840U true CN215342840U (en) | 2021-12-28 |
Family
ID=79561686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121424643.0U Active CN215342840U (en) | 2021-06-25 | 2021-06-25 | Power battery package structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215342840U (en) |
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2021
- 2021-06-25 CN CN202121424643.0U patent/CN215342840U/en active Active
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Address after: Room 201-1, Comprehensive Building 5#, No. 11, Butang Middle Road, Industrial Base, Xiamen Torch High-tech Zone (Tongxiang), Xiamen City, Fujian Province, 361000 Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: Room 201-1, Comprehensive Building 5#, No. 11, Butang Middle Road, Industrial Base, Xiamen Torch High-tech Zone (Tongxiang), Xiamen City, Fujian Province, 361000 Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |