CN211907491U - Top cover assembly, battery and battery module - Google Patents
Top cover assembly, battery and battery module Download PDFInfo
- Publication number
- CN211907491U CN211907491U CN202020464551.4U CN202020464551U CN211907491U CN 211907491 U CN211907491 U CN 211907491U CN 202020464551 U CN202020464551 U CN 202020464551U CN 211907491 U CN211907491 U CN 211907491U
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- Prior art keywords
- insulator
- top cap
- utmost point
- battery
- point post
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- 239000012212 insulator Substances 0.000 claims abstract description 104
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 229910000679 solder Inorganic materials 0.000 claims description 32
- 238000003466 welding Methods 0.000 claims description 19
- 239000007769 metal material Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000001465 metallisation Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 229910052755 nonmetal Inorganic materials 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a new energy automobile's power battery's field discloses a top cap subassembly, battery and battery module. The utility model provides a top cap subassembly includes top cap and utmost point post, seals through the insulator between utmost point post and the top cap, and the top cap is worn to establish by the one end of insulator, and the insulator is worn to establish by the one end of utmost point post, and the insulator respectively with top cap and utmost point post seal weld. The utility model provides a top cap subassembly passes through the insulator and realizes the sealing connection between utmost point post and the top cap, sealing performance is good, moreover, the steam generator is simple in structure, the part is few, the insulating seal between utmost point post and the top cap has been realized, need not to carry out the metallization with the sealing member and realize connecting and sealing, and insulator environmental suitability is strong, mechanical properties is good, the state does not have any change all the time when making the battery breathe, the security performance of battery has been improved, the cost is reduced, simultaneously under long-term use state, any change can not appear in the insulator state, and effective life is up to more than fifteen years.
Description
Technical Field
The utility model relates to a new energy automobile's power battery's field especially relates to a top cap subassembly, battery and battery module.
Background
With the increasing attention of people to the environment, new energy automobiles are rapidly developed. The development of the power battery as a power core component of the new energy automobile also inevitably affects the progress of the new energy automobile, particularly the sealing of the top cover of the power battery, and the safety of the power battery is the root, and the development affects the overall performance of the battery.
In the prior art, the pole and the top cover are pressed and sealed through the plastic sealing ring and positioned through the plastic material to realize sealing and insulation, and the problems of complex structure, more parts, high cost and poor high-low temperature impact performance exist; can also carry out the metallization with the upper and lower face of insulator between utmost point post and the top cap, then with utmost point post and link piece welding, whole subassembly is with the top cap welding again at last, and the structure is complicated and with high costs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a top cap subassembly makes the leakproofness good between utmost point post and the top cap, simple structure, and environmental suitability is strong, and with low costs.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a top cap subassembly, includes top cap and utmost point post, utmost point post with seal through the insulator between the top cap, the one end of insulator is worn to establish the top cap, the one end of utmost point post is worn to establish the insulator, just the insulator respectively with the top cap with utmost point post seal weld.
Preferably, a gap is formed between the insulator and the top cover, solder is filled in the gap, and the solder is used for sealing and connecting the insulator and the top cover.
Preferably, a gap is formed between the insulator and the pole, solder is filled in the gap, and the solder is used for sealing and connecting the insulator and the pole.
Preferably, the solder is made of metal or alloy.
Preferably, the insulator is made of an inorganic non-metallic material.
Preferably, the welding temperature of the insulator, the top cover and the pole is 450-650 ℃.
An object of the utility model is to provide a battery still, battery quality is good, and application safety factor is high.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery comprises a shell and a top cover assembly arranged at the end part of the shell, wherein the top cover assembly is the top cover assembly.
An object of the utility model is to provide a battery module still, of high quality and low in production cost.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery module comprises a plurality of single batteries which are connected in series and/or in parallel, wherein the single batteries are the batteries.
The utility model has the advantages that:
the utility model provides a top cap subassembly passes through the insulator and realizes the sealing connection between utmost point post and the top cap, sealing performance is good, moreover, the steam generator is simple in structure, the part is few, the insulating seal between utmost point post and the top cap has been realized, need not to carry out the metallization with the sealing member and realize connecting and sealing, and insulator environmental suitability is strong, mechanical properties is good, the state does not have any change all the time when making the battery breathe, the security performance of battery has been improved, the cost is reduced, simultaneously under long-term use state, any change can not appear in the insulator state, and effective life is up to more than fifteen years.
The utility model provides a battery adopts foretell top cap subassembly, and battery quality is good, and is with low costs, and application safety factor is high.
The utility model provides a battery module adopts foretell battery, and is of high quality and low in production cost.
Drawings
Fig. 1 is a cross-sectional view of a header assembly provided by an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a flow chart illustrating the main steps of a method for manufacturing a cap assembly according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating the detailed steps of a method for manufacturing a cap assembly according to an embodiment of the present invention.
In the figure:
1. a top cover; 11. a first mounting hole; 2. a pole column; 3. an insulator; 31. a second mounting hole; 4. a gap.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Among the prior art, sealed and insulating between utmost point post and the top cap has the structure complicacy, and the part is many, with high costs scheduling problem, and to this problem, this embodiment provides a top cap subassembly in order to solve above-mentioned problem.
Specifically, as shown in fig. 1 and fig. 2, the top cap assembly provided in this embodiment includes a top cap 1 and a post 2, the post 2 is sealed with the top cap 1 through an insulator 3, the top cap 1 is penetrated through one end of the insulator 3, the insulator 3 is penetrated through one end of the post 2, and the insulator 3 is respectively seal-welded with the top cap 1 and the post 2. The top cap subassembly that this embodiment provided passes through insulator 3 and realizes the sealing connection between utmost point post 2 and the top cap 1, sealing performance is good, moreover, the steam generator is simple in structure, the part is few, the insulating seal between utmost point post 2 and the top cap 1 has been realized, need not to carry out the metallization with the sealing member and realize connecting and sealing, and 3 environmental suitability of insulator is strong, mechanical properties is good, the state does not have any change all the time when making the battery breathe, the security performance of battery has been improved, the cost is reduced, simultaneously under long-term service condition, any change can not appear in 3 states of insulator, and effective life is up to more than fifteen years.
In this embodiment, the top cover 1 is provided with a first mounting hole 11 for mounting the insulator 3, the insulator 3 is provided with a second mounting hole 31 for mounting the post 2, the insulator 3 is mounted on the top cover 1, and the post 2 is mounted on the insulator 3. Preferably, the first mounting hole 11 is a rectangular hole, and the insulator 3 is rectangular, and the rectangular hole is convenient to process and mount.
Top cap 1 is made by metal material, insulator 3 is inorganic non-metal material, and insulator 3 can be inorganic non-metal material such as pottery, in order to realize insulator 3 and top cap 1's fixed connection, and be convenient for connect inorganic non-metal material and metal material, in this embodiment, when insulator 3 installs on top cap 1, be equipped with clearance 4 between insulator 3 and the top cap 1, the clearance 4 intussuseption is filled with the solder, the solder is used for sealing connection insulator 3 and top cap 1. When the insulator 3 and the cap 1 are connected, a predetermined temperature is first applied to the solder in the gap 4 to sufficiently penetrate the solder into the gap 4, thereby facilitating sufficient soldering and improving the reliability of the connection between the insulator 3 and the cap 1.
Further, for example, the gap 4 between the insulator 3 and the top cap 1 is set to be 0.2-0.3mm, which can ensure that sufficient solder can be filled between the insulator 3 and the top cap 1 and ensure the stability of the connection between the insulator 3 and the top cap 1. Of course, the gap 4 may be set to be less than 0.2mm or greater than 0.3mm in other embodiments, and may be selected appropriately according to actual situations.
Further, for example: the gap 4 between the insulator 3 and the pole 2 is set to be 0.2-0.3mm, so that sufficient solder can be filled between the insulator 3 and the pole 2, and the stability of connection between the insulator 3 and the top cover 1 can be ensured, of course, in other embodiments, the gap 4 can also be set to be less than 0.2mm or more than 0.3mm, and the reasonable selection can be carried out according to actual conditions.
In this embodiment, the solder filled between the insulator 3 and the top cover 1 and the solder filled between the insulator 3 and the post 2 are both made of metal or alloy so that the insulator 3 is connected to the top cover 1 and the post 2.
In the present embodiment, the welding temperature of the insulator 3 with the top cap 1 and the post 2 is 450-650 ℃. The welding temperature is set to weld the solder containing the aluminum component, the requirement on the welding temperature of welding equipment is reduced, and the insulator 3 is not easy to crack at the welding temperature, so that the insulator 3 is effectively protected, and the qualification rate of products is improved.
The present embodiment further provides a method for manufacturing a cap assembly, for machining the cap assembly, as shown in fig. 3, the method includes:
assembling the insulator 3 and the pole 2 on the top cover 1;
the gap 4 between the insulator 3 and the post 2 and the gap 4 between the insulator 3 and the cap 1 are filled with solder and soldered.
According to the manufacturing method of the top cover assembly, the sealing connection of the pole column 2 and the top cover 1 can be realized only by adding the solder between the insulator 3 and the pole column 2 and the top cover 1 and welding, so that the processing technology is greatly simplified, and the processing cost is reduced.
Fig. 4 is a flowchart illustrating the detailed steps of the method for manufacturing the top cover assembly, and the steps of the method for manufacturing the top cover assembly provided in this embodiment are described below with reference to fig. 4. The manufacturing method mainly comprises the following steps:
step one, processing a pole 2 and an insulator 3 in preset shapes, arranging a first mounting hole 11 matched with the pole 2 on the insulator 3, and arranging a second mounting hole 31 matched with the insulator 3 on the top cover 1.
Specifically, a first mounting hole 11 for mounting the insulator 3 is formed in the top cover 1, a second mounting hole 31 for mounting the post 2 is formed in the insulator 3, the insulator 3 is mounted on the top cover 1, and the post 2 is mounted on the insulator 3. Preferably, first mounting hole 11 sets up to the slot, preferably processes the slot through tensile mode, and insulator 3 is rectangle glass, and the slot facilitates processing and installation. Of course, the first mounting hole 11 and the insulator 3 may have other shapes, such as a circle, an ellipse, etc., and are not limited herein.
And step two, assembling the insulator 3 on the top cover 1 and assembling the pole 2 on the insulator 3.
Specifically, install insulator 3 in the first mounting hole 11 of top cap 1, preferably make the both ends of insulator 3 and top cap 1's both sides surface parallel and level, utmost point post 2 installs on insulator 3's second mounting hole 31, and top cap 1 is worn to locate by the one end of preferred utmost point post 2, makes the both ends of utmost point post 2 all bulge in top cap 1's both sides surface setting to make utmost point post 2 be connected with utmost point ear and external equipment.
And step three, filling solder into the gap 4 between the insulator 3 and the pole 2 and the gap 4 between the insulator 3 and the top cover 1.
Specifically, after the insulator 3 is mounted in the first mounting hole 11 of the top cap 1, a gap 4 is formed between the insulator 3 and the wall of the first mounting hole 11, so that solder is added to connect the insulator 3 and the top cap 1.
After the post 2 is mounted in the second mounting hole 31 of the insulator 3, a gap 4 is left between the post 2 and the wall of the second mounting hole 31, so that the insulator 3 and the post 2 can be connected by adding solder.
And step four, applying a preset temperature to enable the solder to penetrate into the gap 4.
Specifically, the solder is usually made of metal or alloy, and different temperatures are applied to the solders made of different materials, so that the solders fully penetrate into the gap 4, so that soldering is fully performed, and the reliability of the connection between the insulator 3 and the top cap 2 is improved.
And fifthly, welding and cooling to realize the connection of the insulator 3, the pole 2 and the top cover 1.
Specifically, after the solder fully permeates into the gap 4, the insulator 3 is connected with the top cover 1 and the pole column 2 respectively by welding, and then cooling is performed, so that the connection between the inorganic non-metal material and the metal material is realized, namely the connection between the insulator 3 and the pole column 2 and the top cover 1 is realized, and the insulator 3 is good in sealing property, strong in environmental adaptability and good in insulativity.
The welding temperature of the insulator 3, the top cover 1 and the pole 2 is 450-650 ℃. The welding temperature is set to weld the solder containing the aluminum component, the requirement on the welding temperature of welding equipment is reduced, and the insulator 3 is not easy to crack at the welding temperature, so that the insulator 3 is effectively protected, and the qualification rate of products is improved.
The embodiment also provides a battery, which comprises a shell and a top cover assembly arranged at the end part of the shell, wherein the top cover assembly is the top cover assembly. By adopting the top cover assembly, the battery has good quality, low cost and high use safety factor.
Meanwhile, the embodiment also provides a battery module, which comprises a plurality of single batteries connected in series and/or in parallel, and the single batteries are the batteries provided by the embodiment.
In summary, the present embodiment has the above-mentioned excellent characteristics, so that the present embodiment can enhance the effect of the prior art in use and has practicability, and becomes a product with practical value.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a top cap subassembly, its characterized in that, includes top cap (1) and utmost point post (2), utmost point post (2) with seal-in through insulator (3) between top cap (1), the one end of insulator (3) is worn to establish top cap (1), the one end of utmost point post (2) is worn to establish insulator (3), just insulator (3) respectively with top cap (1) with utmost point post (2) seal weld.
2. Cap assembly according to claim 1, wherein a gap (4) is provided between the insulator (3) and the cap (1), the gap (4) being filled with a solder for sealing the insulator (3) and the cap (1).
3. The top cap assembly according to claim 1, characterized in that a gap (4) is provided between the insulator (3) and the post (2), the gap (4) being filled with solder for sealing connection of the insulator (3) and the post (2).
4. The header assembly of claim 2 or 3, wherein the solder is a metal or alloy.
5. Cap assembly according to claim 1, characterized in that said insulator (3) is of an inorganic non-metallic material.
6. The cap assembly according to claim 1, wherein the welding temperature of the insulator (3) with the cap (1) and the post (2) is 450-650 ℃.
7. A battery comprising a housing and a cap assembly disposed at an end of the housing, wherein the cap assembly is the cap assembly of any one of claims 1-6.
8. A battery module, comprising a plurality of single batteries connected in series and/or in parallel, wherein the single batteries are the batteries of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020464551.4U CN211907491U (en) | 2020-04-01 | 2020-04-01 | Top cover assembly, battery and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020464551.4U CN211907491U (en) | 2020-04-01 | 2020-04-01 | Top cover assembly, battery and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211907491U true CN211907491U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020464551.4U Active CN211907491U (en) | 2020-04-01 | 2020-04-01 | Top cover assembly, battery and battery module |
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| Country | Link |
|---|---|
| CN (1) | CN211907491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276649A (en) * | 2020-04-01 | 2020-06-12 | 湖北亿纬动力有限公司 | Top cover assembly, manufacturing method, battery and battery module |
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2020
- 2020-04-01 CN CN202020464551.4U patent/CN211907491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276649A (en) * | 2020-04-01 | 2020-06-12 | 湖北亿纬动力有限公司 | Top cover assembly, manufacturing method, battery and battery module |
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