CN202695677U - Device for regulating heat balance of battery packs by using foamy copper material - Google Patents
Device for regulating heat balance of battery packs by using foamy copper material Download PDFInfo
- Publication number
- CN202695677U CN202695677U CN 201220269521 CN201220269521U CN202695677U CN 202695677 U CN202695677 U CN 202695677U CN 201220269521 CN201220269521 CN 201220269521 CN 201220269521 U CN201220269521 U CN 201220269521U CN 202695677 U CN202695677 U CN 202695677U
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- batteries
- battery
- foamy copper
- foam copper
- heat
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- Y02E60/12—
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a device for regulating the heat balance of battery packs by using a foamy copper material. According to the technical scheme, holes are formed in foamy copper, and batteries are embedded into the foamy copper; the batteries are flexibly adhered to the foamy copper material through conductive insulating layers; and a plurality of groups of foamy copper can be conducted through heat conduction materials, so that the heat balance of the battery packs in the whole battery box is realized. The device has the functional characteristics that: (a) the device has a simple and reliable structure; (b) moving parts are eliminated, so that noise is avoided in the heat transferring process; (c) difference of temperature of all points can be controlled in a small range; (d) the device is wide in application range and can be applied to square batteries, round batteries and irregularly-shaped batteries; (e) foamy copper fixed among the single batteries is flexibly connected with the batteries, so that a phenomenon that the batteries can be damaged due to hard connection can be effectively avoided; and (f) the foamy copper can be welded with other metal materials in the battery box, so that an electricity equipotential volume is formed among the heat conduction bodies in the battery box, a phenomenon that electric sparks can be generated due to potential difference among the heat conduction bodies is effectively avoided, and the safety is enhanced.
Description
Technical field
The utility model relates to a kind of device with foam copper material regulating cell thermal balance.
Background technology
Modern society is along with the development of novel battery technology, and secondary cell is used for storing and providing energy in increasing field.Especially application is more and more aspect the mobile device stored energy, and particularly new-energy automobile is more and more to the demand of battery.And the current secondary battery product is electrochemical reaction owing to know-why, and it is extremely responsive to ambient temperature.Cross when low when temperature, its chemism reduces, and causes the battery available capacity significantly to reduce even can't discharge and recharge, and irreversible variation occurs for serious also can cause battery electrolyte and both positive and negative polarity structure, has a strong impact on battery life.When excess Temperature, although the battery increased activity, danger is also following.Under the condition of high temperature, discharge and recharge and to cause cell internal pressure to raise, there will be severe battery explosion, the security incident such as on fire.On the other hand, Dian Chi Cheng Group technology is very crucial, keeps numerous cell temperature even, and is extremely important to the whole efficiency for charge-discharge of battery pack, cycle life.And be subject to battery manufacturing process, and the difference of installation site, in the battery pack of hundreds of individual and even thousands of cells compositions, the temperature difference of cell is very large.Therefore how to guarantee effectively that battery pack temperature is balanced, and battery pack is controlled at is conducive to most in the battery operated temperature range, become one of major subjects of battery applications technology.The main working temperature that adopts cool ambient air circulation temperature lowering and battery case internal placement thermo electric material heating technique control battery in present battery applications technology.Also have and adopt water circulation that battery temperature is controlled.Though but be cooling or heat that all need can't guarantee thermal balance by the gas heat-shift in the battery case, thermal resistance is large simultaneously, and it is slow to conduct heat, and efficient is low, and the control difficulty is large.
Current foam metal material makes a breakthrough, this so that utilize foam metal material particularly foam copper material transfer battery pack heat become possibility.Because foam copper conducts heat and to belong to the solid conductive heat category, exchange heat is direct, can form more uniform isothermal body within the extremely short time, thus for the better enforcement of battery temperature control strategy provides may.When the foam copper material has kept the high thermal conductivity characteristics of copper, again the unit mass surface area is enlarged several times and even decades of times, thereby increased in the little situation at installation weight and cost, greatly strengthened heat-conducting effect.
The utility model content
The utility model utilizes the foam copper material for the deficiency in the above existing battery group technology, and a kind of device that can the Fast-Balance battery pack temperature is provided.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: perforate on foam copper embeds foam copper with battery; Battery is by the heat conductive insulating layer, and flexible is adhered on the foam copper.
Operation principle of the present utility model is that the foam copper material is connected the heat conductive insulating layer and directly connects with battery, can realize fast two-way heat exchange between battery and the Heat Conduction Material, thereby has improved greatly the efficient of battery thermal management.The loose structure of foam copper is so that the surface area of unit mass copper increases greatly, and the increase of surface area effectively raises again heat transfer efficiency.When in groups battery was fixed on the foam copper, the temperature anomaly that cell occurs can be by rapid dispersion to the monoblock foam copper, and the temperature difference between the cell can be effectively controlled in reasonable level, thereby realized the thermal balance of battery pack.On this basis by the reload temperature transducer, the heat abstractors such as air-cooled, water-cooled, the heaters such as electric heating then can effectively be realized the temperature control to battery pack.
The utlity model has following functions characteristics: a, simple and reliable for structure; B, there is not moving component, noiseless in the heat transfer process; C, can guarantee that the each point temperature difference is controlled in the very little scope; D, applied widely, rectangular cell, circular batteries, Special-shaped battery are all applicable; E, the foam copper that is fixed between each cell are connected with the elasticity that is connected to of battery, can prevent effectively that the battery that hard connection may cause from damaging; Can weld between other metal materials in f, foam copper and the battery case, make the interior heat carrier of battery case form electric equipotential volume, effectively prevent from having strengthened security performance because the potential difference between heat carrier may produce the electric spark phenomenon.
Description of drawings
Fig. 1 is structural representation of the present utility model, among the figure: 1. battery, 2. heat conductive insulating layer, 3. foam copper
Fig. 2 is that the utility model is installed in the schematic diagram in the battery case, among the figure: 1. battery, 2. heat conductive insulating layer, 3. foam copper, 4. Heat Conduction Material, 5. supporting construction, 6. battery case body.
Embodiment
As shown in Figure 1, overall dimension according to battery is processed through hole at foam copper 3, and coated with thermally conductive insulating barrier 2 in the hole inserts battery 1 fixing at last, the heat conductive insulating layer of thin layer can be realized the rapidly heat exchange of battery and foam copper, and the individual layer battery connects as one by foam copper.As shown in Figure 2, this application of installation in battery case body 6, can be installed in the device of finishing among Fig. 1 on the supporting construction 5, by Heat Conduction Material 4 with multi-layered foamed copper conducting, thereby realize the heat balance of all battery pack in the whole battery case.
Above-mentioned embodiment of the present utility model and range of application only are schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away from the scope situation that the utility model aim and claim protect; can also make a lot of forms, these all belong within the protection range of the present utility model.
Claims (6)
1. device with foam copper material regulating cell group thermal balance, it is characterized in that: this device comprises battery 1, heat conductive insulating layer 2, foam copper 3.
2. a kind of device with foam copper material regulating cell group thermal balance as claimed in claim 1 is characterized in that: according to battery 1 size perforate, battery is embedded foam copper on foam copper 3.
3. a kind of device with foam copper material regulating cell group thermal balance as claimed in claim 2, it is characterized in that: battery 1 is by heat conductive insulating layer 2, flexible is adhered on the foam copper 3.
4. a kind of device with foam copper material regulating cell group thermal balance as claimed in claim 3, it is characterized in that: heat conductive insulating layer 2 has heat conduction and insulation function, can be a kind of individual layer of material, also can be the composite bed of multiple material.
5. a kind of device with foam copper material regulating cell group thermal balance as claimed in claim 3, it is characterized in that: between battery 1 and the heat conductive insulating layer 2, be direct contact between heat conductive insulating layer 2 and the foam copper 3, be heat conductive insulating between battery 1 and the foam copper 3.
6. such as claim 1 or 2 or 3 described a kind of devices with foam copper material regulating cell group thermal balance, it is characterized in that: can interconnect with Heat Conduction Material 4 between the foam copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269521 CN202695677U (en) | 2012-06-08 | 2012-06-08 | Device for regulating heat balance of battery packs by using foamy copper material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269521 CN202695677U (en) | 2012-06-08 | 2012-06-08 | Device for regulating heat balance of battery packs by using foamy copper material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695677U true CN202695677U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269521 Expired - Fee Related CN202695677U (en) | 2012-06-08 | 2012-06-08 | Device for regulating heat balance of battery packs by using foamy copper material |
Country Status (1)
| Country | Link |
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| CN (1) | CN202695677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790246A (en) * | 2012-06-08 | 2012-11-21 | 苏州市莱赛电车技术有限公司 | Copper foam material device for adjusting thermal balance of battery pack |
-
2012
- 2012-06-08 CN CN 201220269521 patent/CN202695677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790246A (en) * | 2012-06-08 | 2012-11-21 | 苏州市莱赛电车技术有限公司 | Copper foam material device for adjusting thermal balance of battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140608 |