CN215644663U - Rapid heating battery module - Google Patents
Rapid heating battery module Download PDFInfo
- Publication number
- CN215644663U CN215644663U CN202121324431.5U CN202121324431U CN215644663U CN 215644663 U CN215644663 U CN 215644663U CN 202121324431 U CN202121324431 U CN 202121324431U CN 215644663 U CN215644663 U CN 215644663U
- Authority
- CN
- China
- Prior art keywords
- heat
- heating
- battery module
- battery cell
- main body
- 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)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a rapid heating battery module, comprising: the cell group comprises a plurality of cell units, the cell units are arranged side by side along the thickness direction of the cell unit, each cell unit comprises a cell main body and a heat conducting sheet, one side surface of the cell main body is tightly attached to one side surface of the heat conducting sheet, two ends of the heat conducting sheet are respectively provided with a hem outwards, the hems are respectively attached to the upper surface and the lower surface of the cell main body, and two side surfaces of the heat conducting sheet are respectively provided with a radiation coating layer; the two heating plates are respectively arranged on the upper surface and the lower surface of the electric core group; the two heat-conducting rubber pads are respectively arranged between the heating plate and the electric core group, one surface of each heat-conducting rubber pad is tightly attached to the folded edge of the heat-conducting sheet, and the other surface of each heat-conducting rubber pad is tightly attached to the heating plate.
Description
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a quick heating battery module.
Background
In the application of the new energy battery, the service temperature of the battery is a key parameter for the use of the battery module. At low temperature, the concentration difference of the electrolyte becomes large, the polarization is enhanced, the polarization internal resistance is increased, the charge and discharge capacity expressed by the single battery cell is obviously reduced, and the capacity of the battery is difficult to normally exert. In order to avoid the influence of temperature on the performance of the battery, the cell is generally required to be heated in a low-temperature environment.
With the vigorous development of new energy automobiles, the power battery system is developed very rapidly, but at low temperature, the concentration difference of the electrolyte becomes large, the polarization is enhanced, the polarization internal resistance is increased, the charge-discharge capacity represented by a monomer battery cell is remarkably reduced, and the capacity of the battery is difficult to normally exert. Therefore, the service temperature of the battery becomes a key parameter of the battery module, and in order to avoid the influence of the temperature on the performance of the battery, the battery core is generally required to be heated in a low-temperature environment.
Current battery module heating device adopts heat conduction aluminum plate to press from both sides to draw forth the hem between monomer electricity core usually, and the hem through heating heat conduction aluminum plate heats electric core with heat transfer to monomer electricity core both sides limit, but the efficiency of this kind of heating scheme is limited, needs the heating time more than half an hour under low temperature environment to make electric core heat up to normal use temperature, and heat transfer is inhomogeneous.
Patent document cn201621014423.x discloses a power battery module capable of rapid heat equalization, which comprises a battery module body, a heating plate and a heat conduction layer, wherein the heating plate is internally provided with a heating element, the heating element is externally connected with a power supply, the battery module body is arranged on the heating plate, the bottom of the battery module body is in contact with the top of the heating plate, the heat conduction layer is respectively attached to two sides of the battery module body, and the lower end of the heat conduction layer is in contact connection with the top of the heating plate. The disclosed scheme of this patent can improve rate of heating to a certain extent, but only heats battery module body bottom through the hot plate, recycles hot plate transfer heat and gives heat conduction layer, and heat conduction layer gives battery module body both sides with heat transfer again, to the unable way rapid heating of the upper portion of battery module body and middle part, still has the inhomogeneous phenomenon of heat transfer.
Therefore, how to heat the battery module rapidly and uniformly becomes a problem to be solved in the battery field.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a rapid heating battery module, which can rapidly and uniformly heat the battery module to improve the overall performance of the battery.
The utility model provides a rapid heating battery module, comprising:
the battery cell group comprises a plurality of battery cell units, the battery cell units are arranged side by side along the thickness direction of the battery cell units, each battery cell unit comprises a battery cell main body and a heat conducting sheet, one side surface of the battery cell main body is tightly attached to one side surface of the heat conducting sheet, two ends of the heat conducting sheet are respectively provided with a hem outwards, the hems are respectively attached to the upper surface and the lower surface of the battery cell main body, and two side surfaces of the heat conducting sheet are respectively provided with a radiation coating layer;
the two heating plates are respectively arranged on the upper surface and the lower surface of the electric core group;
and the two heat-conducting rubber pads are respectively arranged between the heating plate and the electric core group, one surface of each heat-conducting rubber pad is tightly attached to the folded edge of the heat-conducting fin, and the other surface of each heat-conducting rubber pad is tightly attached to the heating plate.
As a further improvement of the above scheme, the radiation coating layer is a radiation material.
As a further improvement of the above scheme, the battery cell unit further includes a support for supporting and mounting the battery cell main body, the support is a casing having an opening on a side surface, and the upper surface and the lower surface of the support are both provided with slits through which folded edges of the heat conducting fins pass.
As a further improvement of the above scheme, the electric core unit further includes a heat insulating layer, and the heat insulating layer is disposed on an opposite surface of the electric core main body to the heat conducting fin close-to surface, and is adjacent to the opening side of the bracket.
As a further improvement of the above scheme, a plurality of the battery cell units are arranged side by side along the thickness direction thereof, and the openings of the brackets face in the same direction.
As a further improvement of the scheme, the heat insulation layer material comprises, but is not limited to, heat insulation cotton.
As a further improvement of the scheme, the rapid heating battery module further comprises an end plate, and the end plate is arranged on the side face of the battery core group.
As a further improvement of the scheme, PCT heating elements are arranged in the two heating plates.
As a further improvement of the above aspect, the thermally conductive sheet is a high thermally conductive metal material, preferably aluminum or copper.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. the utility model relates to a rapid heating battery module, which comprises: the battery cell group comprises a plurality of battery cell units, the battery cell units are arranged side by side along the thickness direction of the battery cell units, each battery cell unit comprises a battery cell main body and a heat conducting sheet, one side surface of the battery cell main body is tightly attached to one side surface of the heat conducting sheet, two ends of the heat conducting sheet are respectively provided with a hem outwards, the hems are respectively attached to the upper surface and the lower surface of the battery cell main body, and two side surfaces of the heat conducting sheet are respectively coated with a radiation coating; the two heating plates are respectively arranged on the upper surface and the lower surface of the electric core group; the two heat-conducting rubber pads are respectively arranged between the heating plate and the electric core group, one surface of each heat-conducting rubber pad is tightly attached to the folded edge of the heat-conducting strip, and the other surface of each heat-conducting rubber pad is tightly attached to the heating plate; on the other hand, the two side surfaces of the heat conducting strip are coated with the radiation coatings, the radiation coatings can effectively radiate the heat of the heat conducting strip, and the heat radiation generated by the radiation coatings can penetrate through an object, so that the interior of the electric core main body can be efficiently heated; in a word, the heating mode combining direct contact and radiation can prevent the local temperature of the battery module from being overhigh, and can quickly heat the battery module to recover the charge and discharge performance, so that the heating time is greatly shortened compared with the traditional heating mode.
2. According to the rapid heating battery module, the heat-conducting rubber pad is arranged between the heating plate and the electric core group, one surface of the heat-conducting rubber pad is tightly attached to the folded edge of the heat-conducting sheet, the other surface of the heat-conducting rubber pad is tightly attached to the heating plate, on one hand, the heat-conducting rubber pad enables all parts to be more attached to each other, heat transfer is facilitated, the heating effect is improved, and on the other hand, the heat-conducting rubber pad has a buffering effect on a contact surface.
3. According to the rapid heating battery module, the battery cell units further comprise the heat insulation layers, the heat insulation layers are arranged on the opposite surfaces of the battery cell main bodies and the surfaces, close to the heat conducting fins, of the heat insulation layers, on one hand, heat dissipation is prevented, and on the other hand, a buffer effect is achieved between every two adjacent battery cell units.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
fig. 1 is an exploded view of a rapid heating battery module according to the present invention;
fig. 2 is an exploded view of a cell unit of the present invention;
FIG. 3 is a perspective view of the bracket of the present invention;
FIG. 4 is a perspective view of a thermally conductive sheet of the present invention;
reference numerals:
1. the electric core group; 11. a cell unit; 111. a cell main body; 112. a heat conductive sheet; 1121. folding edges; 113. a support; 114. a heat-insulating layer; 2. heating plates; 3. a heat-conducting rubber pad; 4. and an end plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators such as the first, second, upper, lower, left, right, front and rear … … in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model will be further described with reference to the following figures:
referring to fig. 1 to 4, the present invention provides a rapid heating battery module, including:
the cell pack 1 comprises a plurality of cell units 11, wherein the cell units 11 are arranged side by side along the thickness direction of the cell units, each cell unit 11 comprises a cell main body 111, a heat conducting fin 112, a support 113 and a heat insulating layer 114, one side surface of the cell main body 111 is tightly attached to one side surface of the heat conducting fin 112, two ends of the heat conducting fin 112 are respectively provided with a hem 1121 outwards, the hems 1121 are respectively attached to the upper surface and the lower surface of the cell main body 111, and two side surfaces of the heat conducting fin 112 are respectively provided with a radiation coating layer; the support 113 is used for supporting and mounting the cell main body 111, the support 113 is a casing with an opening on a side surface, gaps for the folded edge 1121 of the heat conducting fin 112 to pass through are formed on the upper surface and the lower surface of the support 113, two ends of the heat conducting fin 112 penetrate through the gaps and are exposed out of the support 113, and the exposed portion of the support 113 is bent to form the folded edge 1121; the insulating layer 114 is arranged on the opposite surface of the cell main body 111 and the surface of the heat conducting fin 112, and is adjacent to the opening side of the bracket 113;
the two heating plates 2 are respectively arranged on the upper surface and the lower surface of the electric core group 1;
and the two heat-conducting rubber pads 3 are respectively arranged between the heating plate 2 and the electric core group 1, one surface of each heat-conducting rubber pad 3 is tightly attached to the folded edge 1121 of the heat-conducting fin 112, and the other surface of each heat-conducting rubber pad 3 is tightly attached to the heating plate 2.
With such arrangement, on one hand, the heating plate 2 is electrified to radiate heat, the heat is conducted to the folded edge 1121 of the heat conducting strip 112 tightly attached to the heat conducting strip through the heat conducting rubber pad 3, the heat conducting strip 112 conducts the heat to the middle part of the whole heat conducting strip 112 through the folded edges 1121 at the two ends, and the middle part of the heat conducting strip 112 is directly tightly attached to the side surface of the cell main body 111, so that the side surface of the cell main body 111 is heated in a contact manner, the heat transfer speed is high, and the heat transfer efficiency is high; on the other hand, the two side surfaces of the heat conducting strip 112 are coated with the radiation coating, the radiation coating can effectively radiate the heat of the heat conducting strip 112, and the heat radiation generated by the radiation coating can penetrate through an object, so that the interior of the electric core main body 111 can be efficiently heated; in a word, the heating mode combining direct contact and radiation can prevent the local temperature of the battery module from being overhigh, and can quickly heat the battery module to recover the charge and discharge performance, so that the heating time is greatly shortened compared with the traditional heating mode. Through experimental comparison, the traditional heating mode needs more than half an hour to heat the electric core group 1 to the normal use temperature in a low-temperature environment, and by adopting the heating mode provided by the utility model, the battery module can heat the electric core group 1 to the normal use temperature in about 10 minutes, so that the overall performance of the battery is improved.
In the present embodiment, the radiation coating material is ink PITT IC-200(PITT, Phase-change Thermal-management Technology), which is a heat treatment coating material specially applied to the surface of the metal object.
The radiation coating is specially applied to radiation heat transfer of the surface of a metal object, and is directly sprayed on the surfaces of two sides of the middle part of the heat conducting fin 112, so that the heat of the heat conducting fin 112 can be effectively radiated. Because the heat radiation can penetrate through the object, the inside of the battery cell main body 111 can be efficiently heated, and the temperature of the battery cell main body 111 can be rapidly and uniformly raised. Meanwhile, the radiation coating is used as a heat transfer material of the soft package battery module, and has the advantages of uniform transfer temperature, light weight, good heat conduction and high reliability.
As a preferred embodiment, the plurality of battery cell units 11 are arranged side by side along the thickness direction thereof, and the openings of the brackets 113 are in the same direction, and are arranged side by side in sequence and the openings of the brackets 113 are in the same direction, so that the insulating layers 114 between the adjacent battery cell units 11 can also play a role of buffering while preserving heat.
As a preferred embodiment, the insulating layer 114 includes, but is not limited to, insulating cotton, which is disposed to prevent heat dissipation on one hand and to buffer between adjacent cell units 11 on the other hand.
As a preferred embodiment, the rapid heating battery module further comprises an end plate 4, and the end plate 4 is disposed at the side of the electric core pack 1.
As a preferred embodiment, PCT heating elements are disposed in both the two heating plates 2, and the use of PTC heating elements to heat the cell main body 111 has the advantages of safety in use, high heat conversion efficiency, rapid temperature rise, no open fire, automatic constant temperature, and the like.
As a preferred embodiment, the heat conducting sheet 112 is a high heat conducting metal material, preferably aluminum or copper, and in this embodiment, the heat conducting sheets 112 are all made of aluminum.
The foregoing is a detailed description of the utility model, and specific examples are used herein to explain the principles and implementations of the utility model, the above description being merely intended to facilitate an understanding of the principles and core concepts of the utility model. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A rapid heating battery module, comprising:
the battery cell group comprises a plurality of battery cell units, the battery cell units are arranged side by side along the thickness direction of the battery cell units, each battery cell unit comprises a battery cell main body and a heat conducting sheet, one side surface of the battery cell main body is tightly attached to one side surface of the heat conducting sheet, two ends of the heat conducting sheet are respectively provided with a hem outwards, the hems are respectively attached to the upper surface and the lower surface of the battery cell main body, and two side surfaces of the heat conducting sheet are respectively provided with a radiation coating layer;
the two heating plates are respectively arranged on the upper surface and the lower surface of the electric core group;
and the two heat-conducting rubber pads are respectively arranged between the heating plate and the electric core group, one surface of each heat-conducting rubber pad is tightly attached to the folded edge of the heat-conducting fin, and the other surface of each heat-conducting rubber pad is tightly attached to the heating plate.
2. The rapid-heating battery module according to claim 1, wherein the cell unit further comprises a support for supporting and mounting the cell main body, the support is a casing with an opening on a side surface, and the upper surface and the lower surface of the support are provided with gaps for the folded edges of the heat-conducting sheet to pass through.
3. The rapid-heating battery module according to claim 2, wherein the cell unit further comprises a heat insulating layer, and the heat insulating layer is disposed on an opposite surface of the cell main body to the heat conducting fin, and is adjacent to the opening side of the support.
4. The rapid heating battery module according to claim 2, wherein the plurality of battery cell units are arranged side by side along a thickness direction of the battery cell units, and openings of the support face in a consistent direction.
5. The rapid heating battery module according to claim 3, wherein the heat insulation layer is made of heat insulation cotton.
6. The rapid heating battery module according to claim 1 or 2, further comprising end plates disposed at the sides of the electric core pack.
7. A rapid heating battery module according to claim 1 or 2, wherein PCT heating elements are provided in both heating plates.
8. The rapid-heating battery module according to claim 1 or 2, wherein the heat conductive sheet is a high-thermal-conductivity metal material.
9. The rapid-heating battery module according to claim 1 or 2, wherein the thermally conductive sheet is made of aluminum or copper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021209811727 | 2021-05-10 | ||
| CN202120981172 | 2021-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644663U true CN215644663U (en) | 2022-01-25 |
Family
ID=79943514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121324431.5U Active CN215644663U (en) | 2021-05-10 | 2021-06-15 | Rapid heating battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644663U (en) |
-
2021
- 2021-06-15 CN CN202121324431.5U patent/CN215644663U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2018503934A (en) | Heat sink and power battery system | |
| US20050026014A1 (en) | Polymer batteries having thermal exchange apparatus | |
| US20170025722A1 (en) | Heater for electric vehicle batteries | |
| CN206490115U (en) | Battery modules | |
| CN211530140U (en) | Battery module and battery pack | |
| CN207459121U (en) | Battery modules, battery system and vehicle | |
| CN210430029U (en) | Plate-type heating and cooling heat conduction device and temperature-controllable lithium battery pack adopting same | |
| CN210073975U (en) | High-efficient radiating laminate polymer battery module | |
| CN213988982U (en) | Heat dissipation laminate polymer battery group | |
| CN108054018B (en) | Energy-type super-capacitor battery capable of rapidly radiating heat | |
| CN215644663U (en) | Rapid heating battery module | |
| CN210926233U (en) | Battery module and battery pack | |
| CN107833747A (en) | A kind of combined type super capacitor module radiator structure | |
| CN218769754U (en) | Heat conduction and dissipation device for power battery of automobile | |
| CN110635083A (en) | Rapid heating battery module | |
| CN108091962A (en) | A kind of new soft pack cell heat conduction module | |
| CN112687975A (en) | Electronic equipment and heat dissipation method | |
| CN216597749U (en) | Power battery thermal management system | |
| CN214013025U (en) | Heating element, battery box and vehicle | |
| CN215816100U (en) | Battery module and battery pack | |
| CN210576081U (en) | Battery package thermal runaway protector and use its battery package | |
| CN210576139U (en) | Laminate polymer battery module | |
| KR20230039025A (en) | Battery assembly with thermal spread and preheating functions and a battery thermal management system including the same | |
| CN112786998A (en) | Radiating electric core of mass flow body extension | |
| CN219226411U (en) | Lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230426 Granted publication date: 20220125 |