CN213278203U - Power battery top cover structure and power battery - Google Patents
Power battery top cover structure and power battery Download PDFInfo
- Publication number
- CN213278203U CN213278203U CN202022072950.9U CN202022072950U CN213278203U CN 213278203 U CN213278203 U CN 213278203U CN 202022072950 U CN202022072950 U CN 202022072950U CN 213278203 U CN213278203 U CN 213278203U
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- plastic part
- utmost point
- power battery
- point post
- top cover
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- 238000005452 bending Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a power battery top cap structure and power battery, wherein, power battery top cap structure includes the lamina tecti and joins in marriage the first plastic part of locating the lamina tecti downside, be equipped with two at least utmost point post connection pieces on the lamina tecti, be equipped with second plastic part between every utmost point post connection piece and the lamina tecti, every utmost point post connection piece correspondence is equipped with two switching pieces, be equipped with the bending plate on the switching piece, the switching piece is located first plastic part downside, the bending plate upwards runs through first plastic part, lamina tecti and second plastic part, the bending plate top is equipped with draws forth the end, draw forth end and utmost point post connection piece fixed connection, the parcel of bending plate side has third plastic part. Through set up a plurality of utmost point posts on the battery cell top cap and connect electric core, reduce the connection internal resistance and the self material internal resistance of electric core switching utmost point post, utmost point post connection piece is convenient for also carry out corresponding adaptability structural design according to the battery package actual demand simultaneously.
Description
Technical Field
The utility model relates to a power battery technical field, concretely relates to power battery top cap structure and power battery.
Background
The power battery generally includes a battery core, an electrolyte, a battery case, and a top cover assembled on the battery case. When the power battery is assembled, the battery core electrode lug is connected with the top cover pole column through the adapter sheet. In the prior art, a single-pole column output pole is generally adopted, namely, the pole column and the switching piece are single, the internal resistance of connection with a battery cell is large, the circulating temperature and the temperature rise of the battery cell are high, and the service life of the battery cell is further influenced; meanwhile, the existing pole has a single structure, and can not achieve ideal effects and cost reduction corresponding to different application scenes and working environments.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at: to utmost point post and switching piece singleness among the prior art, it is big to be connected the internal resistance with electric core to and current utmost point post structure singleness, be not convenient for carry out the problem of adaptability design, provide a power battery top cap structure and power battery, connect electric core through setting up a plurality of utmost point posts on the battery cell top cap, reduce the connection internal resistance and the self material internal resistance of electric core switching utmost point post, be convenient for simultaneously carry out corresponding adaptability structural design according to the actual demand of battery package.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a power battery top cap structure, includes the lamina tecti and joins in marriage the first plastic part of locating the lamina tecti downside, be equipped with two at least utmost point post connection pieces on the lamina tecti, be equipped with second plastic part between every utmost point post connection piece and the lamina tecti, every utmost point post connection piece correspondence is equipped with two switching pieces, be equipped with the bending plate on the switching piece, the switching piece is located first plastic part downside, the bending plate upwards runs through first plastic part, lamina tecti and second plastic part, the bending plate top is equipped with draws forth the end, draw forth end and utmost point post connection piece fixed connection, the parcel of bending plate side has third plastic part.
The utility model discloses a set up the top deck and allocate the first plastic part on the top deck downside, be equipped with two at least utmost point post connection pieces on the top deck, be equipped with the second plastic part between every utmost point post connection piece and the top deck, every utmost point post connection piece correspondence is equipped with two switching pieces, be equipped with the bending plate on the switching piece, the switching piece is located first plastic part downside, the bending plate upwards runs through first plastic part, top deck and second plastic part, the bending plate top is equipped with the end of drawing forth, draw forth end and utmost point post connection piece fixed connection, the bending plate side parcel has third plastic part; because be provided with two or two above utmost point post connection electric cores on the monomer battery top cap, reduce the internal resistance of connection and the self material internal resistance of electric core switching utmost point post, produce less heat when recycling, especially at heavy current during operation, and adopted utmost point post connection piece after, be convenient for carry out corresponding adaptability structural design according to the battery package actual demand, also make things convenient for battery equipment production operation, and first plastic part, second plastic part and third plastic part are used for insulating the protection to the top cap board.
As the utility model discloses a preferred scheme, be equipped with on the utmost point post connection piece and draw forth end assorted through-hole, it stretches into to draw forth the end in the through-hole. So, draw the end with the switching piece and insert the back in the through-hole, be convenient for make the switching piece draw the end and weld firmly with utmost point post connection piece.
As the utility model discloses a preferred scheme, be equipped with the boss around being close to switching piece department on the third plastic part, the boss is along outstanding with third plastic part side looks vertically direction. Through set up the boss on the third plastic part, the boss top surface plays the thrust effect with the contact of first plastic part during the installation.
As the utility model discloses an optimal scheme, be equipped with the dop on the second plastic part, the dop sets up with third plastic part side relatively, be equipped with the draw-in groove that matches with the dop on the third plastic part. Through set up the dop on the second plastic part to set up the draw-in groove that matches with the dop on the third plastic part, the boss top surface plays the thrust effect with the contact of first plastic part during the installation, and the dop card is gone into in the draw-in groove and with draw-off end downside contact, thereby realizes fixing a position and connecting of butt-joint piece on the lamina tecti.
As an optimized scheme of the utility model, be equipped with the sealing washer on the third plastic part, the sealing washer side with the side is laminated mutually on the boss. Through set up the sealing washer on third plastic part for seal the clearance between roof board and first plastic part and the third plastic part side.
As the preferred scheme of the utility model, still be equipped with explosion-proof valve subassembly on the lamina tecti. When the internal pressure of the battery cell is overlarge, the explosion-proof valve assembly can be opened automatically to release pressure, so that the explosion condition is prevented.
As the preferred scheme of the utility model, still be equipped with on the lamina tecti and annotate the liquid mouth. In the liquid injection process of the power battery, electrolyte is injected into the battery shell through a liquid injection port in the top cover plate.
A power battery comprises the power battery top cover structure.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a set up the top deck and allocate the first plastic part on the top deck downside, be equipped with two at least utmost point post connection pieces on the top deck, be equipped with the second plastic part between every utmost point post connection piece and the top deck, every utmost point post connection piece correspondence is equipped with two switching pieces, be equipped with the bending plate on the switching piece, the switching piece is located first plastic part downside, the bending plate upwards runs through first plastic part, top deck and second plastic part, the bending plate top is equipped with the end of drawing forth, draw forth end and utmost point post connection piece fixed connection, the bending plate side parcel has third plastic part; because be provided with two or two above utmost point post connection electric cores on the monomer battery top cap, reduce the internal resistance of connection and the self material internal resistance of electric core switching utmost point post, produce less heat when recycling, especially at heavy current during operation, and adopted utmost point post connection piece after, be convenient for carry out corresponding adaptability structural design according to the battery package actual demand, also make things convenient for battery equipment production operation, and first plastic part, second plastic part and third plastic part are used for insulating the protection to the top cap board.
Drawings
Fig. 1 is a top view of the top cover structure of the power battery of the present invention.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is an enlarged sectional view of a-a in fig. 1.
Fig. 4 is an exploded view of fig. 1.
Fig. 5 is a schematic view of a second plastic part.
Fig. 6 is a schematic view of an interposer fabric assembly.
Fig. 7 is a schematic view of an interposer.
The labels in the figure are: 1-top cover plate, 2-first plastic part, 3-pole connecting piece, 31-through hole, 4-second plastic part, 41-clamping head, 42-groove, 5-adapter piece, 51-bending plate, 511-anchoring hole, 52-leading-out end, 6-third plastic part, 61-lug boss, 62-clamping groove, 7-sealing ring, 8-explosion-proof valve component and 9-liquid injection port.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
The embodiment provides a top cover structure of a power battery;
as shown in fig. 1-7, the top cap structure of the power battery in this embodiment includes a top cap plate 1 and a first plastic part 2 disposed on a lower side of the top cap plate 1, the top cap plate 1 is provided with at least two terminal connecting sheets 3, a second plastic part 4 is disposed between each terminal connecting sheet 3 and the top cap plate 1, the second plastic part 4 is provided with a groove 42 adapted to the size of the terminal connecting sheet 3, the terminal connecting sheet 3 is located in the groove 42, each terminal connecting sheet 3 is correspondingly provided with two adapter sheets 5, the adapter sheet 5 is provided with a bending plate 51, the bending plate 51 is bent upward at 90 degrees relative to the adapter sheet 5, the adapter sheet 5 is located on a lower side of the first plastic part 2, the bending plate 51 upwardly penetrates through the first plastic part 2, the top cap plate 1 and the second plastic part 4, a connecting sheet 52 is disposed on a top end of the bending plate 51, the leading-out end 52 is fixedly connected with the terminal 3, the side of the bending plate 51 is wrapped with a third plastic part 6.
The utility model discloses a set up the top deck and allocate the first plastic part on the top deck downside, be equipped with two at least utmost point post connection pieces on the top deck, be equipped with the second plastic part between every utmost point post connection piece and the top deck, every utmost point post connection piece correspondence is equipped with two switching pieces, be equipped with the bending plate on the switching piece, the switching piece is located first plastic part downside, the bending plate upwards runs through first plastic part, top deck and second plastic part, the bending plate top is equipped with the end of drawing forth, draw forth end and utmost point post connection piece fixed connection, the bending plate side parcel has third plastic part; because be provided with two or two above utmost point post connection electric cores on the monomer battery top cap, reduce the internal resistance of connection and the self material internal resistance of electric core switching utmost point post, produce less heat when recycling, especially at heavy current during operation, and adopted utmost point post connection piece after, be convenient for carry out corresponding adaptability structural design according to the battery package actual demand, also make things convenient for battery equipment production operation, and first plastic part, second plastic part and third plastic part are used for insulating the protection to the top cap board.
In this embodiment, the pole connecting sheet 3 is provided with a through hole 31 matching with the leading-out terminal 52, and the leading-out terminal 52 extends into the through hole 31. So, draw the end with the switching piece and insert the back in the through-hole, be convenient for make the switching piece draw the end and weld firmly with utmost point post connection piece.
In this embodiment, bosses 61 are disposed on the third plastic part 6 at the periphery near the interposer 5, and the bosses 61 protrude in a direction perpendicular to the side surface of the third plastic part 6. Through set up the boss on the third plastic part, the boss top surface plays the thrust effect with the contact of first plastic part during the installation. In order to increase the connecting force between the third plastic part 6 and the bending plate 51, two anchoring holes 511 are formed on the bending plate 51, and the third plastic part 6 is connected to the bending plate 51 through the anchoring holes 511 to prevent the third plastic part from sliding relative to the bending plate.
In this embodiment, a clamping head 41 is disposed on the second plastic part 4, the clamping head 41 is disposed opposite to a side surface of the third plastic part 6, a clamping groove 62 matched with the clamping head 41 is disposed on the third plastic part 6, the clamping groove 62 is located at a lower edge of a top end surface of the third plastic part 6, and an opening communicated with a lower side of the leading-out terminal 52 is formed in an upper side surface of the clamping groove 622. Through set up the dop on the second plastic part to set up the draw-in groove that matches with the dop on the third plastic part, the boss top surface plays the thrust effect with the contact of first plastic part during the installation, and the dop card is gone into in the draw-in groove and with draw-off end downside contact, thereby realizes fixing a position and connecting of butt-joint piece on the lamina tecti.
In this embodiment, the third plastic part 6 is provided with a sealing ring 7, and after installation, the lower side surface of the sealing ring 7 is attached to the upper side surface of the boss 61. Through set up the sealing washer on third plastic part for seal the clearance between roof board and first plastic part and the third plastic part side. In order to avoid the up-and-down movement of the sealing ring 7 on the third plastic part 6, a rectangular groove is arranged at the position on the third plastic part 6 surrounding the sealing ring 7, the sealing ring 7 is arranged in the rectangular groove after being arranged on the third plastic part 6, and one side of the sealing ring opposite to the rectangular groove is in contact with the top cover plate and the first plastic part.
In this embodiment, the top cover plate 1 is further provided with an explosion-proof valve assembly 8. When the internal pressure of the battery cell is overlarge, the explosion-proof valve assembly can be opened automatically to release pressure, so that the explosion condition is prevented.
In this embodiment, the top cover plate 1 is further provided with a liquid injection port 9, and the liquid injection port is arranged close to the explosion-proof valve assembly. In the liquid injection process of the power battery, electrolyte is injected into the battery shell through a liquid injection port in the top cover plate.
It should be noted that in this embodiment, the top cover plate 1 and the first plastic part 2 are provided with openings at positions corresponding to the leading-out end 52, the explosion-proof valve assembly 8, and the liquid injection port 9, so as to facilitate the installation of the leading-out end of the adaptor sheet and the explosion-proof valve assembly and the liquid injection operation.
Example 2
The embodiment provides a power battery, which comprises the power battery top cover structure described in embodiment 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the principles of the present invention should be included within the scope of the present invention.
Claims (8)
1. The utility model provides a power battery top cap structure, its characterized in that includes the lamina tecti and joins in marriage the first plastic part of locating the lamina tecti downside, be equipped with two at least utmost point post connection pieces on the lamina tecti, be equipped with second plastic part between every utmost point post connection piece and the lamina tecti, every utmost point post connection piece correspondence is equipped with two switching pieces, be equipped with the bending plate on the switching piece, the switching piece is located first plastic part downside, the bending plate upwards runs through first plastic part, lamina tecti and second plastic part, the bending plate top is equipped with draws forth the end, draw forth end and utmost point post connection piece fixed connection, the parcel of bending plate side has third plastic part.
2. The power battery top cover structure of claim 1, wherein the pole connecting piece is provided with a through hole matched with the leading-out end, and the leading-out end extends into the through hole.
3. The top cover structure of the power battery as claimed in claim 2, wherein the third plastic part is provided with a boss at the periphery near the adaptor plate, and the boss protrudes along the direction perpendicular to the side surface of the third plastic part.
4. The top cap structure of claim 3, wherein the second plastic part is provided with a clamping head, the clamping head is arranged opposite to the side surface of the third plastic part, and the third plastic part is provided with a clamping groove matched with the clamping head.
5. The top cover structure of the power battery as claimed in claim 4, wherein a sealing ring is arranged on the third plastic part, and the side surface of the sealing ring is attached to the upper side surface of the boss.
6. The power battery top cover structure according to any one of claims 1-5, wherein an explosion-proof valve assembly is further arranged on the top cover plate.
7. The top cover structure of the power battery as claimed in any one of claims 1 to 5, wherein the top cover plate is further provided with a liquid injection port.
8. A power battery comprising the power battery top cover structure of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022072950.9U CN213278203U (en) | 2020-09-21 | 2020-09-21 | Power battery top cover structure and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022072950.9U CN213278203U (en) | 2020-09-21 | 2020-09-21 | Power battery top cover structure and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213278203U true CN213278203U (en) | 2021-05-25 |
Family
ID=75943346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022072950.9U Active CN213278203U (en) | 2020-09-21 | 2020-09-21 | Power battery top cover structure and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213278203U (en) |
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2020
- 2020-09-21 CN CN202022072950.9U patent/CN213278203U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |