CN210838021U - Metal casing power battery utmost point post heat radiation structure - Google Patents
Metal casing power battery utmost point post heat radiation structure Download PDFInfo
- Publication number
- CN210838021U CN210838021U CN201921568336.2U CN201921568336U CN210838021U CN 210838021 U CN210838021 U CN 210838021U CN 201921568336 U CN201921568336 U CN 201921568336U CN 210838021 U CN210838021 U CN 210838021U
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- China
- Prior art keywords
- battery
- pole column
- power battery
- heat dissipation
- heat
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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.)
- Expired - Fee Related
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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
Abstract
The utility model discloses a square metal casing power battery pole column heat dissipation structure, a power battery is provided with a metal casing (1) and a sealing cover (2), the sealing cover (2) is provided with a positive pole column (3) and a negative pole column (4), wherein the positive pole column (3) is connected with a metal substrate of the sealing cover (2) into a whole, and the negative pole column (4) is arranged on the metal substrate of the sealing cover (2) through an insulation structure; one side to four sides of the heat dissipation structure around the negative pole column (4) are provided with a filling and sealing cavity (6), and the filling and sealing cavity (6) is filled and sealed by adopting insulating heat-conducting pouring sealant. By adopting the technical scheme, the heat-conducting insulating pouring sealant is used to form a heat dissipation structure of the square metal shell pole, so that the temperature rise of the battery core pole is reduced, and the discharge power of the battery core is widened; the temperature difference between the battery cores is reduced, the service life of the battery is prolonged, the performance of the battery pack is improved, the heat dissipation requirement of a battery system is reduced, and the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of hybrid vehicle driving system, a power battery structure is related to, more specifically says, the utility model relates to a square metal casing power battery utmost point post heat radiation structure.
Background
The plug-in hybrid electric vehicle generally adopts a high-voltage direct-current battery system for power supply, and during operation, charging and discharging with large multiplying power can be performed frequently. Due to technical limitations, the internal resistance of the battery cannot be made too low, and the amount of heat generation is very large. Especially, the welding position of the battery pole piece and the pole ear or the pole column, and the welding position of the pole column and the bus bar have more serious heating of the interface resistance due to the limited welding area.
In the prior art, a power module of a soft package battery is formed by stacking and assembling a bracket and aluminum sheets, a heat dissipation aluminum sheet is clamped between two battery cores, and the heat dissipation aluminum sheet is in contact with a liquid cooling plate of a liquid cooling system for heat transfer; the square metal shell battery is contacted with the liquid cooling plate to dissipate heat by the metal shell. In the cooling design that the battery core pole is not in contact with the cooling liquid, the battery core pole is mainly radiated by the conductive connecting body. The place with the largest temperature difference among the battery cores is often the position of the battery pole, and the position with the highest temperature of the battery cores is also often the position of the pole.
Such battery core design and battery system heat dissipation design cause the damage to the battery easily, also do not do benefit to the performance of battery performance, can influence the whole car performance even.
SUMMERY OF THE UTILITY MODEL
The utility model provides a metal casing power battery utmost point post heat radiation structure, its purpose is reliability and the dynamic behavior that improves battery system.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
the utility model discloses a metal casing power battery utmost point post heat radiation structure, power battery be equipped with metal casing and closing cap, the closing cap on be equipped with anodal post and negative pole post, wherein anodal post and closing cap metal substrate connect an organic whole, the negative pole post passes through insulation system and installs on closing cap metal substrate; one side to four sides of the heat dissipation structure around the negative pole column are provided with a filling and sealing cavity, and the filling and sealing cavity is filled and sealed by insulating heat conduction pouring sealant.
The power battery adopts a square metal shell.
The insulating heat-conducting pouring sealant is a high-molecular polymer matrix and heat-conducting fillers.
The insulating heat-conducting pouring sealant is a composite material of silicon carbide and boron nitride.
In order to realize the same purpose of the invention as the technical proposal, the utility model also provides a forming method of the metal casing power battery pole column heat radiation structure, and the technical proposal is that the process of the method is as follows:
and erecting the battery core, forming a potting cavity by using a potting tool, pouring the prepared potting adhesive into the potting cavity, and removing the potting tool after the potting adhesive is cured to form the power battery pole column heat dissipation structure.
The utility model adopts the above technical scheme, use heat conduction insulating casting glue, form square metal casing utmost point post heat radiation structure, reduce the temperature rise of battery core utmost point post, widen the discharge power of battery core; the temperature difference between the battery cores is reduced, the service life of the battery is prolonged, the performance of the battery pack is improved, the heat dissipation requirement of a battery system is reduced, and the cost is reduced.
Drawings
The contents of the drawings and the reference numbers in the drawings are briefly described as follows:
fig. 1 is a schematic view of the appearance structure of the present invention;
fig. 2 is a structural schematic view of the heat dissipation structure of the battery post of the present invention;
fig. 3 is the heat dissipation structure of battery post according to the present invention (schematic representation).
Labeled as:
1. the battery comprises a metal shell, 2, a sealing cover, 3, a positive pole column, 4, a negative pole column, 5, a battery core, 6, a filling and sealing cavity, 7 and a decompression exhaust valve.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention by those skilled in the art.
As shown in fig. 1 to fig. 3 the utility model discloses a structure, for a metal casing power battery utmost point post heat radiation structure, power battery be equipped with metal casing 1 and closing cap 2, closing cap 2 on be equipped with anodal post 3 and negative pole post 4, wherein anodal post 3 is connected integratively with closing cap 2 metal substrate, negative pole post 4 passes through insulation system and installs on closing cap 2 metal substrate.
The utility model discloses a be applied to the heat radiation structure of square metal casing power battery's heat conduction insulation casting glue, specially adapted VDA2714891 square aluminum hull power battery negative pole heat radiation structure.
In order to overcome the problems and the defects existing in the prior art, the invention aims to improve the reliability and the power performance of a battery system, and the utility model discloses the technical scheme who takes is:
as shown in fig. 2 and 3, the metal-clad power battery post heat dissipation structure of the present invention has a potting cavity 6 disposed on one side to four sides of the negative post 4, and the potting cavity 6 is filled and sealed by using an insulating heat-conducting potting adhesive.
The heat dissipation structure of the power battery pole with the square metal shell is encapsulated from one side to four sides around the negative pole 4 by using insulating heat-conducting embedding glue as shown in fig. 2.
Since the structurally hard organic material is an electrical insulator and has a low thermal conductivity, the negative electrode tab 4 is likely to generate a high temperature. The utility model discloses use heat conduction insulation casting glue, form square metal casing utmost point post heat radiation structure. The utility model discloses a square metal casing power battery utmost point post heat radiation structure reduces utmost point post and the inside temperature difference of battery core, improves battery system's reliability and dynamic property. Specifically speaking, the utility model has the advantages that:
1. the temperature rise of the battery core pole is reduced, and the discharge power of the battery core is widened;
2. the temperature difference among the battery cores is reduced, the service life of the battery is prolonged, and the performance of the battery pack is improved;
3. the heat dissipation requirement of the battery system is reduced, and the cost is reduced.
The power battery adopts a square metal shell.
The insulating heat-conducting pouring sealant is a high-molecular polymer matrix and heat-conducting fillers.
The insulating heat-conducting pouring sealant is a composite material of silicon carbide and boron nitride.
The heat-conducting pouring sealant is formed by compounding a high-molecular polymer matrix and heat-conducting fillers such as silicon carbide, boron nitride and the like.
The battery core is encapsulated in the thickness direction of the battery core 5 and cannot exceed the plane of the square power battery shell; the height of the pole cannot be exceeded in the height direction, and the decompression exhaust valve 7 cannot be covered in the longitudinal direction, so that the decompression exhaust valve 7 cannot interfere with the structure of the battery module.
As shown in fig. 3, a potting structure having the same height and width as the negative electrode column 4 was designed, and the dimension in the longitudinal direction of the potting structure (i.e., the direction indicated by the broken-line arrow in fig. 3) was 10 mm.
In order to realize the same purpose of the invention as the technical proposal, the utility model also provides a forming method of the metal casing power battery pole column heat radiation structure, and the technical proposal is that the process of the method is as follows:
erecting the battery core 5, forming a potting cavity 6 by using a potting tool, then pouring the prepared potting adhesive into the potting cavity 6, and after the potting adhesive is cured, removing the potting tool to form the power battery pole column heat dissipation structure.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (3)
1. A metal casing power battery pole column heat dissipation structure is characterized in that a metal casing (1) and a sealing cover (2) are arranged on a power battery, a positive pole column (3) and a negative pole column (4) are arranged on the sealing cover (2), the positive pole column (3) and a metal substrate of the sealing cover (2) are connected into a whole, and the negative pole column (4) is installed on the metal substrate of the sealing cover (2) through an insulation structure; the method is characterized in that: one side to four sides of the heat dissipation structure around the negative pole column (4) are provided with a filling and sealing cavity (6), and the filling and sealing cavity (6) is filled and sealed by adopting insulating heat-conducting pouring sealant.
2. The metal-enclosed power battery pole heat dissipation structure of claim 1, characterized in that: the power battery adopts a square metal shell.
3. The metal-enclosed power battery pole heat dissipation structure of claim 1, characterized in that: the insulating heat-conducting pouring sealant is a high-molecular polymer matrix and heat-conducting fillers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568336.2U CN210838021U (en) | 2019-09-20 | 2019-09-20 | Metal casing power battery utmost point post heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568336.2U CN210838021U (en) | 2019-09-20 | 2019-09-20 | Metal casing power battery utmost point post heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210838021U true CN210838021U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921568336.2U Expired - Fee Related CN210838021U (en) | 2019-09-20 | 2019-09-20 | Metal casing power battery utmost point post heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210838021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571497A (en) * | 2019-09-20 | 2019-12-13 | 江西优特汽车技术有限公司 | metal shell power battery pole column heat dissipation structure and forming method thereof |
-
2019
- 2019-09-20 CN CN201921568336.2U patent/CN210838021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571497A (en) * | 2019-09-20 | 2019-12-13 | 江西优特汽车技术有限公司 | metal shell power battery pole column heat dissipation structure and forming method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |