CN211907636U - Lithium battery heating structure - Google Patents
Lithium battery heating structure Download PDFInfo
- Publication number
- CN211907636U CN211907636U CN202020170636.1U CN202020170636U CN211907636U CN 211907636 U CN211907636 U CN 211907636U CN 202020170636 U CN202020170636 U CN 202020170636U CN 211907636 U CN211907636 U CN 211907636U
- Authority
- CN
- China
- Prior art keywords
- battery
- heating
- layer
- heat
- lithium
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium cell heating structure, include: the battery comprises a plurality of battery cores, a plurality of battery cores and a plurality of battery fixing supports, wherein the plurality of battery cores are assembled with series-parallel connection guide sheets, and heating films are adhered to the outer side surfaces of the series-parallel connection guide sheets; the heating film comprises a back glue layer, an electric heating layer and a heat insulation layer which are sequentially laminated from inside to outside; the electric heating layer is electrically connected with the battery core or an external power supply. The utility model discloses a heating film heats, and the heating film pastes on the parallelly connected conducting strip of cluster, utilizes the heat transfer of heat-conduction mode through the conducting strip to heat the battery core, and this kind of mode that sees through the conducting strip heating can be with the stable and unanimous biography of heat source to the battery core, and the conducting strip has high heat conduction characteristic, can let the heating temperature rise of every battery core reach unanimously, reduces the uneven production of battery temperature heating, and then promotes battery life.
Description
Technical Field
The utility model relates to a lithium cell heating structure.
Background
The lithium ion battery has the advantages of light weight, large specific capacity, long cycle service life and the like, and compared with the lead-acid battery of the traditional power carrier, the lithium ion battery serving as a vehicle-mounted power supply is light in weight, portable and convenient to charge, and contributes to light weight and simplified design of the finished vehicle product. However, lithium ion batteries have a fatal defect that they cannot be charged at temperatures below 0 ℃, and thus they have not been widely used as vehicle-mounted batteries.
The current lithium battery heating technology adopts a fan to bring the heat of a heater to a battery so as to increase the temperature of the battery. However, this method requires an additional fan, which increases the cost, and also requires an additional power supply to the fan, and this heating method is also prone to uneven temperature rise of the battery due to the distance from the fan.
The lithium battery heating technology also utilizes a liquid heating mode to achieve the effect of temperature equalization, but the liquid heating mode causes great cost increase, and the liquid heating mode needs additional parts such as a water pump, a liquid flow channel cavity and the like, so that the system is more complex, and is not suitable for electric vehicles with simpler structures such as electric bicycles and the like.
In addition, in the lithium battery heating technology, the heating component is directly contacted with the battery, but the heating component is difficult to realize under the condition of multiple strings and multiple parallel batteries, and the condition of uneven heating temperature of the same string is easily caused, so that the pressure difference of the same string of batteries is further caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a lithium battery heating structure, include: the battery comprises a plurality of battery cores, a plurality of battery cores and a plurality of battery fixing supports, wherein the plurality of battery cores are assembled with series-parallel connection guide sheets, and heating films are adhered to the outer side surfaces of the series-parallel connection guide sheets;
the heating film comprises a back glue layer, an electric heating layer and a heat insulation layer which are sequentially laminated from inside to outside;
the electric heating layer is electrically connected with the battery core or an external power supply.
Preferably, still install the BMS control panel on the battery fixed bolster, electric heating layer is connected with BMS control panel electricity, and electric heating layer is by BMS control panel control ohmic heating.
Preferably, the electric heating layer is composed of a flexible circuit board layer and a heating circuit layer.
Preferably, the heating line layer includes a heating coil.
Preferably, the heat insulation layer is a heat insulation foam layer.
Preferably, the battery cell is a lithium ion battery or other lithium batteries.
Preferably, the combination of the series-parallel connection guide sheets and the battery core is welded, locked or in other modes capable of transmitting electric energy.
The utility model discloses a heating film heats, and the heating film pastes on the parallelly connected conducting strip of cluster, utilizes the heat transfer of heat-conduction mode through the conducting strip to heat the battery core, and this kind of mode that sees through the conducting strip heating can be with the stable and unanimous biography of heat source to the battery core, and the conducting strip has high heat conduction characteristic, can let the heating temperature rise of every battery core reach unanimously, reduces the uneven production of battery temperature heating, and then promotes battery life.
Drawings
Fig. 1 and 2 are schematic views of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and 2, the assembly 1 is a lithium ion battery pack having a plurality of battery cells (lithium ion batteries); the components 2 and 3 are lithium battery fixing supports; the components 4 and 5 are series-parallel connection guide sheets and are welded on the battery core to achieve the functions of series connection and parallel connection; the component 6 is a BMS control board and has a battery core temperature sensing function; the components 7 and 8 are heating films and are adhered to the series-parallel connection guide vanes 4 and 5 to achieve the function of heating the battery; the assembly 9 is a final positive and negative electrode guide sheet locking screw and is locked on the BMS control board 6; the assembly 10 is a locking screw for fixing the BMS control board 6 to the lithium battery fixing brackets 2, 3.
The heating films 7 and 8 are a multilayer composite material and comprise a back glue layer, an electric heating layer and a heat insulation layer which are sequentially laminated from inside to outside; the back glue layer is adhered to the series-parallel connection guide sheet; the electric heating layer is electrically connected with the battery core or an external power supply and is powered by the battery core or the external power supply; the electric heating layer is also electrically connected with the BMS control board, and the electric heating layer is controlled by the BMS control board to be electrified and heated; specifically, the electrical heating layer may be composed of a flexible circuit board layer and a heating line layer; the heating circuit layer includes a heating coil; the insulating layer may be an insulating foam layer.
When the BMS control board senses the low-temperature condition of the battery, the heating films 7 and 8 are electrified and heated, after heat energy is generated, the heat energy is directly provided for the series-parallel connection guide sheets 4 and 5, and then the heat energy is directly transmitted to the battery through the series-parallel connection guide sheets 4 and 5, so that the battery can be rapidly heated at lower power, the manufacturing and assembling mode is simple and convenient, and the cost advantage is very high. The heat source can be stably and uniformly transferred to the battery cores in the mode of penetrating through the conducting sheet for heating, the conducting sheet has the characteristic of high heat conduction, the heating temperature rise of each battery core can be uniform, the generation of uneven heating of the battery temperature is reduced, and the service life of the battery is further prolonged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. Lithium cell heating structure, its characterized in that includes: the battery comprises a plurality of battery cores, a plurality of battery cores and a plurality of battery fixing supports, wherein the plurality of battery cores are assembled with series-parallel connection guide sheets, and heating films are adhered to the outer side surfaces of the series-parallel connection guide sheets;
the heating film comprises a back glue layer, an electric heating layer and a heat insulation layer which are sequentially laminated from inside to outside;
the electric heating layer is electrically connected with the battery core or an external power supply.
2. The lithium battery heating structure as claimed in claim 1, wherein a BMS control board is further mounted on the battery fixing bracket, and the electric heating layer is electrically connected to the BMS control board and is controlled by the BMS control board to be electrically heated.
3. The lithium battery heating structure according to claim 1, wherein the electric heating layer is composed of a flexible circuit board layer and a heating wiring layer.
4. The lithium battery heating structure as claimed in claim 3, wherein the heating wire layer comprises a heating coil.
5. The lithium battery heating structure as claimed in claim 1, wherein the heat insulating layer is a heat insulating foam layer.
6. The heating structure for lithium battery as claimed in claim 1, wherein the battery cell is a lithium ion battery or other lithium battery.
7. The heating structure for lithium battery as claimed in claim 1, wherein the combination of the series-parallel connection conductive tabs and the battery cell is welded, locked or other means capable of transmitting electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170636.1U CN211907636U (en) | 2020-02-14 | 2020-02-14 | Lithium battery heating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170636.1U CN211907636U (en) | 2020-02-14 | 2020-02-14 | Lithium battery heating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211907636U true CN211907636U (en) | 2020-11-10 |
Family
ID=73291426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020170636.1U Active CN211907636U (en) | 2020-02-14 | 2020-02-14 | Lithium battery heating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211907636U (en) |
-
2020
- 2020-02-14 CN CN202020170636.1U patent/CN211907636U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102800905B (en) | Battery unit, battery module, power storage system and electronic installation | |
| CN105633506B (en) | Battery heating system | |
| CN206293500U (en) | A kind of electrostrictive polymer core power battery module for collecting radiating heating one | |
| CN106602177B (en) | Module top heating system suitable for soft package power battery and control method | |
| CN210984899U (en) | Heating sheet for automobile battery | |
| CN211320267U (en) | Battery module, battery pack and device | |
| CN205882128U (en) | Electricity core heating module | |
| CN111900511A (en) | Lithium ion battery radiating through pole piece | |
| CN103192731B (en) | Solar energy compensated electric vehicle battery vehicle-mounted charging heating device | |
| CN115884451A (en) | Heating film, battery, electric device, manufacturing method, and manufacturing apparatus | |
| CN216698508U (en) | Battery module and battery pack | |
| CN206532849U (en) | A kind of heat conductive silica gel vulcanization silica gel etching chip battery heating plate | |
| CN211907636U (en) | Lithium battery heating structure | |
| CN104716401A (en) | Power battery heating apparatus | |
| CN210350043U (en) | Electric automobile and power battery thereof | |
| CN205680760U (en) | A kind of new energy car battery bag heat management system | |
| CN214898596U (en) | Battery thermal management system with zone heating function | |
| CN113161648B (en) | Electric automobile battery uniform heating device and application method thereof | |
| CN210168248U (en) | Electric heating film containing multi-power heating system | |
| CN209948006U (en) | Laminate polymer battery module and electric vehicle who has this laminate polymer battery module | |
| CN213278293U (en) | Battery pack with heating and battery core temperature equalization functions | |
| CN205264833U (en) | Battery system with preheating device | |
| CN108091801B (en) | Monomer battery with hexagonal honeycomb structure | |
| CN108110152B (en) | Square battery pack based on honeycomb structure | |
| CN110911782A (en) | Low-temperature heating system for power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |