CN218351556U - Battery core tab cooling structure and battery pack - Google Patents
Battery core tab cooling structure and battery pack Download PDFInfo
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- CN218351556U CN218351556U CN202222758688.2U CN202222758688U CN218351556U CN 218351556 U CN218351556 U CN 218351556U CN 202222758688 U CN202222758688 U CN 202222758688U CN 218351556 U CN218351556 U CN 218351556U
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- heat dissipation
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- bottom plate
- battery
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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
A battery core tab cooling structure and a battery pack relate to the field of battery thermal management and comprise a case and a heat dissipation structural part, wherein a through hole is formed in the bottom surface of the case; the heat dissipation structure part comprises a heat dissipation bottom plate and a heat conduction support arranged on the heat dissipation bottom plate, the heat dissipation bottom plate is arranged at the through hole and seals the case, the heat conduction support is arranged inside the case and is used for contacting with the electrode lug of the electric core, the heat dissipation bottom plate and the heat conduction support are both hollow and communicated, and phase change materials are arranged at the hollow parts of the heat dissipation bottom plate and the heat conduction support; the outer surface of the heat dissipation bottom plate is provided with heat dissipation teeth. The utility model provides an electricity core utmost point ear cooling structure can be pertinence cool off electricity core utmost point ear, with the heat discharge battery package that electricity core utmost point ear produced, and then improve the performance and the life of electric core. And simultaneously, the utility model also provides a battery package it has good cooling effect.
Description
Technical Field
The utility model relates to a battery thermal management field particularly, relates to an electricity core utmost point ear cooling structure and battery package.
Background
In recent years, the electric vehicle industry develops rapidly, and benefits from the technology which matures day by day, the concept of the clean and environment-friendly development of enterprises and the support of national policies. The battery pack is used as a power supply for providing a power source, and the safety of the automobile needs to be ensured when one of three electric sources is used. Common heat dissipation methods include natural air cooling, forced air cooling, liquid cooling, and phase change cooling. Research shows that under the condition of rapid discharge, the tab heat dissipation is more efficient than surface heat dissipation, the current distribution inside the battery is reduced, and the cycle life of the battery can be prolonged.
The inventor researches and discovers that the whole main heating component of battery package is electric core, copper bar, aluminium bar, fuse etc. wherein electric core is generally concentrated and is placed, and the heat gathering, internal resistance and the contact resistance of utmost point ear itself can lead to its temperature to rise simultaneously, when the temperature of utmost point ear is higher for a long time, can influence the performance of electric core, shortens the life of electric core.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electricity core utmost point ear cooling structure and battery package, it can be the pertinence cool off electricity core utmost point ear, with the heat discharge battery package that electricity core utmost point ear produced, and then improve the performance and the life of electric core.
The embodiment of the utility model is realized like this:
in a first aspect, the utility model provides an electricity core utmost point ear cooling structure, include:
the device comprises a case, a base and a cover, wherein a through hole is formed in the bottom surface of the case;
the heat dissipation structure comprises a heat dissipation bottom plate and a heat conduction support arranged on the heat dissipation bottom plate, the heat dissipation bottom plate is arranged at the through hole and sealed with the case, the heat conduction support is arranged in the case and used for contacting with an electric core lug, the heat dissipation bottom plate and the heat conduction support are both hollow and communicated, and a phase change material is arranged at the hollow part of the heat dissipation bottom plate and the heat conduction support.
In an alternative embodiment, the heat dissipation bottom plate is provided with heat dissipation teeth on the outer surface.
In an alternative embodiment, the heat dissipating teeth are hollow inside and communicate with the inside of the heat dissipating base plate.
In an alternative embodiment, the number of the heat dissipation teeth is multiple and is arranged at intervals along a first direction, and each of the heat dissipation teeth extends along a second direction perpendicular to the first direction.
In an optional implementation manner, the heat conducting support includes a fixing frame and a partition plate, the fixing frame is in an inverted U shape and is fixed on the heat dissipation bottom plate, the fixing frame is communicated with the inside of the heat dissipation bottom plate, and the partition plate is connected to the inner wall of the fixing frame and is communicated with the inside of the fixing frame.
In an optional embodiment, the heat dissipation bottom plate is provided with eight heat conduction supports, the eight heat conduction supports are divided into two groups on average, and the two groups of heat conduction supports are symmetrically arranged.
In an alternative embodiment, the phase change material is paraffin.
In an alternative embodiment, a cover is disposed on the top of the case, and the cover is used for sealing the case.
In an alternative embodiment, the heat dissipation base plate and the through hole are connected by a welding process.
In a second aspect, the utility model provides a battery pack, including electric core and the aforesaid arbitrary one an electricity core utmost point ear cooling structure, electric core place in heat conduction support just the utmost point ear of electric core with heat conduction support contact.
The embodiment of the utility model provides a beneficial effect is: the utility model discloses bottom at quick-witted case is provided with the perforating hole, it is sealed with the perforating hole through being provided with heat radiation structure spare on the perforating hole, heat radiation structure spare is including the heat dissipation bottom plate of sealed perforating hole and the heat conduction support of contact electric core utmost point ear simultaneously, the two inside cavity just communicates with each other, it has phase change material to fill in the two cavity department simultaneously, consequently, through above-mentioned structure, the heat that electric core utmost point ear produced just can transmit to the heat dissipation bottom plate through the phase change heat absorbing material in the heat conduction support on, because be provided with the heat dissipation tooth on the surface of heat dissipation bottom plate, consequently, the heat transmits the outside of battery package through the heat dissipation tooth at last, realize the cooling of electric core utmost point ear at last, compare in prior art the utility model discloses can the pertinence cool off electric core utmost point ear, transmit the battery package outside with the heat that electric core utmost point ear produced simultaneously, can also protect each spare part not damaged by high temperature in the battery package when improving the performance of electric core and life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of an overall first viewing angle provided by an embodiment of the present invention;
fig. 2 is a schematic view of a first viewing angle of a heat dissipation structure according to an embodiment of the present invention;
fig. 3 is a schematic view of a first viewing angle of a case according to an embodiment of the present invention.
An icon:
100-a chassis; 110-through holes; 120-box cover; 200-a heat dissipation structure; 210-a heat sink base plate; 211-heat dissipating teeth; 220-heat conducting support; 221-a fixing frame; 222-separation plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
An object of the present embodiment is to provide a battery pack that can be used for vehicles such as electric vehicles and hybrid electric vehicles. For prior art, the cooling methods to the battery package are mostly concentrated on cooling the battery package at present, set up cooling material in the case 100, cool down electric core, copper bar, aluminium bar, fuse, etc. in the battery package, and for the battery package in work, the electric core utmost point ear is the key point of generating heat, propose to set up the cooling chamber between the electric core utmost point ear in prior art (CN 202010617233.1) at present, set up cooling medium in the cooling chamber, and then disperse the heat that the electric core produced to the electric core outside through cooling medium, but the heat of dispersing out still in the battery package, the lasting rise of battery package temperature still can arouse the rise of electric core temperature at last, therefore this kind of mode addresses the symptoms and does not justify the basis, can not the permanent use. Consequently can last effectually cooling down electric core utmost point ear, this embodiment provides a battery package including electric core and an electric core utmost point ear cooling structure for solve above-mentioned problem.
First embodiment
Referring to fig. 1 to 3, the battery cell tab cooling structure provided in this embodiment includes a case 100 and a heat dissipation structure 200, where a through hole 110 is formed in a bottom surface of the case 100; the heat dissipation structure 200 comprises a heat dissipation bottom plate 210 and a heat conduction bracket 220 arranged on the heat dissipation bottom plate 210, the heat dissipation bottom plate 210 is arranged at the through hole 110 and seals the case 100, the heat conduction bracket 220 is arranged inside the case 100 and is used for contacting with the electrode lugs of the electric core, the heat dissipation bottom plate 210 and the heat conduction bracket 220 are hollow and communicated, and phase change materials are arranged at the hollow parts of the heat dissipation bottom plate 210 and the heat conduction bracket 220; heat radiating teeth 211 are provided on the outer surface of the heat radiating base plate 210.
It can be understood that, the phase change material is paraffin, become the liquid that can flow by the solid after absorbing heat, therefore, after electric core utmost point ear at the during operation heat dissipation back, the heat is transmitted for inside paraffin absorption by the heat conduction support 220 that contacts with electric core utmost point ear, paraffin reaches the fusing point, become the liquid that flows by the solid, then because the inside of radiating bottom plate 210 and heat conduction support 220 is communicating, therefore contain during thermal liquid paraffin flows to radiating bottom plate 210, because radiating bottom plate 210's surface is provided with heat dissipation tooth 211, when paraffin flows through heat dissipation tooth 211, the heat just is transmitted outside quick-witted case 100 by heat dissipation tooth 211, and then cool off the inside quick-witted case 100, finally realize the cooling of electric core utmost point ear. The scheme of this embodiment can improve the performance and the life of electric core, can also protect each spare part in the battery package not receive high temperature damage simultaneously.
Specifically, the number of the heat dissipation teeth 211 is multiple and is arranged at intervals along a first direction, and each heat dissipation tooth 211 extends along a second direction perpendicular to the first direction. It is understood that the number of the heat dissipation teeth 211 is generally set to 15-20, and the number of the heat dissipation teeth depends on the size of the heat dissipation base plate 210.
Specifically, as shown in fig. 2, the heat conducting bracket 220 includes a fixing frame 221 and a partition plate 222, the fixing frame 221 is in an inverted U shape and is fixed on the heat dissipating base plate 210, the fixing frame 221 is communicated with the heat dissipating base plate 210, and the partition plate 222 is connected to an inner wall of the fixing frame 221 and is communicated with an inner wall of the fixing frame 221. The partition plate 222 separates the fixing frame 221 into two battery cell modules (a plurality of battery cells are combined into one battery cell module), and the inside of the partition plate 222 is also a hollow structure and is communicated with the fixing frame 221. It can be understood that, the effect of mount 221 and division board 222 not only can play fixed effect to the electricity core module, contacts with a plurality of electric core utmost point ears in the electricity core module simultaneously for the heat that electric core utmost point ear produced can be dispersed outside quick-witted case 100 through mount 221 and division board 222.
Optionally, the heat conducting bracket 220 in this embodiment is formed by a bent hollow tube, and the bent hollow tube just passes through a set of opposite surfaces and a top surface of the battery cell module, and is further in contact with the battery cell tab.
In addition, since the heat conducting bracket 220 needs to be made of an insulating material, and the heat conducting bracket 220 is often located in a high temperature environment, the material of the heat conducting bracket 220 needs to be insulated and resistant to high temperature, and the heat conducting bracket 220 adopted in the embodiment is made of polytetrafluoroethylene, and can be used for a long time in an environment of-180 to 260 ℃.
Optionally, as shown in fig. 2, in this embodiment, eight heat conducting brackets 220 are disposed on the heat dissipation bottom plate 210, the eight heat conducting brackets 220 are equally divided into two groups, and symmetrically distributed on the heat dissipation bottom plate 210, and sixteen battery cell modules are fixed by the eight heat conducting brackets 220. Certainly, the quantity of the heat conduction support 220 on the heat dissipation bottom plate 210 can be determined according to actual conditions, if the work load of the battery cell module is large, the heat generation amount is high, the heat conduction support 220 can be increased, or the battery cell module can be reduced, the extra heat conduction support 220 can act on one battery cell module together with other heat conduction supports 220, and the cooling efficiency is improved.
Optionally, as shown in fig. 3, a cover 120 is disposed on the top of the chassis 100, the cover 120 is used to seal the chassis 100, and the cover 120 is provided to facilitate maintenance of damaged parts in the chassis 100.
Optionally, the heat dissipation base plate 210 and the through hole 110 are connected together by welding or glue sealing, so as to seal the chassis 100, and certainly, the sealing manner is not limited to welding and glue sealing, and a rubber sealing strip may be disposed between the heat dissipation base plate 210 and the through hole 110, so as to achieve the purpose of sealing.
In summary, the invention of the embodiment lies in that the utility model discloses be provided with perforating hole 110 in the bottom of quick-witted case 100, through being provided with heat radiation structure 200 on perforating hole 110 and seal perforating hole 110, heat radiation structure 200 is including the heat dissipation bottom plate 210 of sealed perforating hole 110 and the heat conduction support 220 of contact electric core utmost point ear simultaneously, the two inside hollows and communicates with each other, it has the phase transition heat absorbing material to fill in the two hollows simultaneously, therefore through above-mentioned structure, can be pertinence cool off electric core utmost point ear, transmit the heat that electric core utmost point ear produced to the battery package outside simultaneously, can also protect each spare part in the battery package not damaged by high temperature when improving the performance of electric core and life.
Second embodiment
The structure of the present embodiment is substantially the same as that of the first embodiment, and the difference is that the heat conducting bracket 220 in the present embodiment may be set to be a wrapped structure (not shown), specifically, the heat conducting bracket 220 is composed of four hollow tubes, phase change materials are disposed in the four hollow tubes, and the four hollow tubes are communicated with the heat dissipation bottom plate 210 at the bottom, the four hollow tubes are respectively located on four side surfaces of the battery cell module, the upper half portions of the four hollow tubes are bent, and the four hollow tubes are communicated with each other while converging on the top surface of the battery cell module, it can be understood that, compared with the heat conducting bracket 220 in the first embodiment, the cooling efficiency of the heat conducting bracket 220 in the present embodiment is higher than that in the first embodiment.
Third embodiment
The present embodiment is basically the same as the first embodiment in structure, except that transformer oil (not shown) is filled in the enclosure 100, and the transformer oil has low viscosity, good insulation property, and good cooling property, so that the enclosure 100 can be filled with the transformer oil as a coolant. It can be understood that, through this kind of mode, the inside copper bar, the aluminium bar, the fuse except that the electricity core module of quick-witted case 100 can all be to the cooling to can also carry out heat exchange to heat conduction support 220, the heat of exchange passes to quick-witted case 100 wall through transformer oil again, disperses outside quick-witted case 100 at last, compares in first embodiment, and the scheme in this embodiment can carry out holistic cooling to quick-witted case 100 is inside, and safe and reliable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery core utmost point ear cooling structure which characterized in that includes:
the bottom surface of the case is provided with a through hole;
the heat dissipation structure comprises a heat dissipation bottom plate and a heat conduction support arranged on the heat dissipation bottom plate, the heat dissipation bottom plate is arranged at the through hole and sealed with the case, the heat conduction support is arranged in the case and used for contacting with an electric core lug, the heat dissipation bottom plate and the heat conduction support are both hollow and communicated, and a phase change material is arranged at the hollow part of the heat dissipation bottom plate and the heat conduction support.
2. The battery cell tab cooling structure according to claim 1, wherein heat dissipation teeth are disposed on an outer surface of the heat dissipation bottom plate.
3. The battery tab cooling structure of claim 2, wherein the heat dissipation teeth are hollow and communicate with the interior of the heat dissipation base plate.
4. The battery tab cooling structure of claim 2, wherein the number of the heat dissipation teeth is multiple and is arranged at intervals along a first direction, and each of the heat dissipation teeth extends along a second direction perpendicular to the first direction.
5. The battery cell tab cooling structure of claim 1, wherein the heat conducting support comprises a fixing frame and a partition plate, the fixing frame is in an inverted U shape and is fixed on the heat dissipation bottom plate, the fixing frame is communicated with the inside of the heat dissipation bottom plate, and the partition plate is connected to the inner wall of the fixing frame and is communicated with the inside of the fixing frame.
6. The battery cell tab cooling structure according to claim 1, wherein eight heat conducting supports are disposed on the heat dissipation bottom plate, and are divided into two groups, and the two groups of heat conducting supports are symmetrically disposed.
7. The battery tab cooling structure of claim 1, wherein the phase change material is paraffin.
8. The battery cell tab cooling structure according to claim 1, wherein a case cover is disposed on a top of the case, and the case cover is used for sealing the case.
9. The battery tab cooling structure of claim 1, wherein the heat dissipation base plate is connected to the through hole by a welding process.
10. A battery pack, comprising an electric core and the battery core tab cooling structure of any one of claims 1 to 9, wherein the electric core is placed on the heat conducting support, and the tab of the electric core contacts with the heat conducting support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222758688.2U CN218351556U (en) | 2022-10-19 | 2022-10-19 | Battery core tab cooling structure and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222758688.2U CN218351556U (en) | 2022-10-19 | 2022-10-19 | Battery core tab cooling structure and battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN218351556U true CN218351556U (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222758688.2U Active CN218351556U (en) | 2022-10-19 | 2022-10-19 | Battery core tab cooling structure and battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117423943A (en) * | 2023-12-15 | 2024-01-19 | 可为科技(南通)有限公司 | Modularized battery cell support and battery pack |
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2022
- 2022-10-19 CN CN202222758688.2U patent/CN218351556U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117423943A (en) * | 2023-12-15 | 2024-01-19 | 可为科技(南通)有限公司 | Modularized battery cell support and battery pack |
| CN117423943B (en) * | 2023-12-15 | 2024-05-28 | 可为科技(南通)有限公司 | Modularized battery cell support and battery pack |
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