CN210092167U - Lithium ion battery pack adopting liquid cooling - Google Patents
Lithium ion battery pack adopting liquid cooling Download PDFInfo
- Publication number
- CN210092167U CN210092167U CN201920953226.1U CN201920953226U CN210092167U CN 210092167 U CN210092167 U CN 210092167U CN 201920953226 U CN201920953226 U CN 201920953226U CN 210092167 U CN210092167 U CN 210092167U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- battery cell
- lithium ion
- liquid cooling
- battery pack
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 title claims abstract description 24
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- 230000017525 heat dissipation Effects 0.000 claims abstract description 30
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 16
- 238000005538 encapsulation Methods 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 150000002739 metals Chemical class 0.000 claims abstract description 5
- 238000005057 refrigeration Methods 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 229920006268 silicone film Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005611 electricity Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 108010025899 gelatin film Proteins 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010024796 Logorrhoea Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The application discloses a lithium ion battery pack adopting liquid cooling, which comprises a base and a plurality of electric cores arranged on the base in parallel, wherein a liquid cooling pipe is arranged between every two adjacent electric cores, the liquid cooling pipe is connected with a heat dissipation substrate, and a heat dissipation assembly is arranged on the heat dissipation substrate; the battery cell comprises a base, a battery cell and a battery cell, wherein encapsulation silicon rubber is arranged in the base, the bottom of the battery cell is arranged in the encapsulation silicon rubber, and the surface of the battery cell is coated with a silicon rubber film layer; the battery cell comprises battery cells and is characterized in that a positive electrode lug and a negative electrode lug are arranged at the top of each battery cell and are both rigid metals, and the positive electrode lug and the negative electrode lug between every two adjacent battery cells are connected through riveting. The utility model discloses have good antidetonation effect, improve life to the electricity is connected firmly.
Description
Technical Field
The application relates to the technical field of battery preparation, in particular to a lithium ion battery pack adopting liquid cooling.
Background
A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.
When the lithium ion battery is used, due to the difference of use requirements, the situation of series connection use exists, the vibration can be brought to normal use of some electric tools, toy cars, battery cars and the like, and the use is influenced due to open circuit or virtual connection in the vibration caused by problems of virtual welding, aging and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an adopt lithium ion battery group of liquid cooling, have good antidetonation effect, improve life to the electricity is connected firmly.
In order to solve the technical problem, the utility model provides a lithium ion battery pack adopting liquid cooling, which comprises a base and a plurality of electric cores arranged on the base in parallel, wherein a liquid cooling pipe is arranged between two adjacent electric cores, the liquid cooling pipe is connected with a heat dissipation substrate, and a heat dissipation assembly is arranged on the heat dissipation substrate;
the battery cell comprises a base, a battery cell and a battery cell, wherein encapsulation silicon rubber is arranged in the base, the bottom of the battery cell is arranged in the encapsulation silicon rubber, and the surface of the battery cell is coated with a silicon rubber film layer;
the battery cell comprises battery cells and is characterized in that a positive electrode lug and a negative electrode lug are arranged at the top of each battery cell and are both rigid metals, and the positive electrode lug and the negative electrode lug between every two adjacent battery cells are connected through riveting.
Further, the radiating assembly comprises a refrigerating piece and radiating fins, the cold end of the refrigerating piece is abutted to the radiating base plate, the hot end of the refrigerating piece is connected with a radiating block, and the radiating block is connected with the radiating base plate through a spring bolt.
Further, a heat dissipation fan is arranged on the heat dissipation sheet.
Further, the silicon pellicular membrane layer includes the annular cover and sets up the cover type cover at both ends, the internal surface of cover type cover is connected with the surface bonding of annular cover.
Further, the surface of the liquid cooling pipe is coated with a heat conduction silica gel sheet.
Furthermore, a connecting sheet is arranged between the positive electrode lug and the negative electrode lug which are correspondingly connected together.
Further, the surface of the connecting sheet is coated with conductive paste.
The utility model has the advantages that:
the position of the battery cell is positioned by adopting the encapsulation silicon rubber of the base, so that the effect of buffering and damping can be achieved in actual use; and also can increase the heat dissipation effect.
The positive pole lug and the negative pole lug are both rigid metals and are riveted, so that the sufficient connection firmness is realized at the top of the battery cell, the stability is good, the problems of insufficient solder joint, desoldering and the like do not exist, and the effective positioning effect is also realized.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the surface structure of the battery cell of the present invention;
fig. 3 is a schematic view of a heat dissipating portion of the present invention.
Wherein:
the structure comprises a base 1, a battery core 2, a liquid cooling pipe 3, a heat dissipation substrate 4, a heat dissipation assembly 5, packaging silicon rubber 6, a silicon rubber film layer 7, a positive electrode tab 8, a negative electrode tab 9, a rivet 10, a refrigerating sheet 11, a heat dissipation sheet 12, a spring bolt 13, an annular sleeve 14, a cover-shaped sleeve 15, a heat conduction silicon rubber sheet 16 and a connecting sheet 17.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1 to 3, an embodiment of a lithium ion battery pack using liquid cooling according to the present invention includes a base 1 and a plurality of parallel battery cells 2 disposed on the base, wherein a liquid cooling tube 3 is disposed between two adjacent battery cells, the liquid cooling tube is connected to a heat dissipation substrate 4, and a heat dissipation assembly 5 is disposed on the heat dissipation substrate; the heat that electric core produced when charging and discharging can be taken away and transmit to the heat dissipation base plate by the liquid cooling pipe on, the heat dissipation base plate releases the heat away through radiator unit, guarantees that the operating temperature of electric core is in stable interval. The liquid cooling pipe has the advantages of good cooling effect and small volume. The surface of the liquid cooling pipe is coated with the heat-conducting silica gel sheet 16, so that the liquid cooling pipe has good heat-conducting property, insulating property and wear-resisting property, and can effectively conduct heat and protect electric core abrasion, short circuit and the like.
The encapsulation silicon rubber 6 is arranged in the base, the bottom of the battery cell is arranged in the encapsulation silicon rubber, and after the encapsulation rubber is cured, the position of the battery cell can be fixed, so that the positioning effect is achieved, the encapsulation silicon rubber has good insulation and heat conduction effects, and the stability of the battery cell during working is improved; the surface of the battery cell is coated with the silica gel film layer 7 to play an isolation role, the silica gel film layer comprises an annular sleeve 14 and cover type sleeves 15 arranged at two ends, the inner surface of each cover type sleeve is bonded and connected with the outer surface of the annular sleeve, the battery cell is hermetically wrapped under the condition of not increasing the processing difficulty, so that the inside of the battery cell is isolated from the outside better, moist air and moisture outside are prevented from permeating into the inside, the battery cell can be stably charged and discharged, the moisture resistance is good, and the service life is prolonged;
and the top of the battery cell is provided with a positive electrode tab 8 and a negative electrode tab 9, the positive electrode tab and the negative electrode tab are both rigid metals, and the positive electrode tab and the negative electrode tab between two adjacent battery cells are riveted and connected through a rivet 10. Two adjacent electric cores after riveting are connected apart from stably, can increase whole firmness, have the antidetonation effect to two adjacent electric cores also can produce and press from both sides tight effect, make the transmission that the heat can be better give the liquid cooling pipe. And a connecting sheet 17 is also arranged between the positive electrode lug and the negative electrode lug which are correspondingly connected together, so that the preparation difficulty is reduced, and the production efficiency is improved. The surface of the connecting sheet is coated with conductive paste to improve the conductivity after riveting.
Specifically, foretell radiator unit includes refrigeration piece 11 and fin 12, and the cold junction and the heat dissipation base plate butt of refrigeration piece, the hot junction and the radiating block of refrigeration piece are connected, and the radiating block passes through spring bolt 13 and is connected with the heat dissipation base plate, and spring bolt has the effect of preventing pressing from both sides garrulous when the lock solid, provides the equipment yield. The radiating fins are provided with radiating fans. The refrigeration piece structure is small, and the cooling is effectual to can also effective control temperature variation, make electric core operating temperature steady, improve life and performance.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (7)
1. A lithium ion battery pack adopting liquid cooling is characterized by comprising a base and a plurality of electric cores arranged on the base in parallel, wherein a liquid cooling pipe is arranged between every two adjacent electric cores and connected with a heat dissipation substrate, and a heat dissipation assembly is arranged on the heat dissipation substrate;
the battery cell comprises a base, a battery cell and a battery cell, wherein encapsulation silicon rubber is arranged in the base, the bottom of the battery cell is arranged in the encapsulation silicon rubber, and the surface of the battery cell is coated with a silicon rubber film layer;
the battery cell comprises battery cells and is characterized in that a positive electrode lug and a negative electrode lug are arranged at the top of each battery cell and are both rigid metals, and the positive electrode lug and the negative electrode lug between every two adjacent battery cells are connected through riveting.
2. The liquid-cooled lithium ion battery pack according to claim 1, wherein the heat dissipation assembly comprises a refrigeration sheet and a heat dissipation sheet, the cold end of the refrigeration sheet is abutted against the heat dissipation substrate, the hot end of the refrigeration sheet is connected with the heat dissipation block, and the heat dissipation block is connected with the heat dissipation substrate through a spring bolt.
3. The lithium ion battery pack employing liquid cooling of claim 2, wherein a heat dissipation fan is disposed on the heat dissipation plate.
4. The liquid-cooled lithium ion battery pack according to claim 1, wherein the silicone film layer comprises an annular sleeve and cover sleeves arranged at two ends, and the inner surface of each cover sleeve is bonded with the outer surface of the annular sleeve.
5. The liquid-cooled lithium ion battery pack according to claim 1, wherein the surface of the liquid-cooled tube is coated with a heat conductive silicone sheet.
6. The liquid-cooled lithium ion battery pack according to claim 1, wherein a connecting piece is further disposed between the positive electrode tab and the negative electrode tab which are correspondingly connected together.
7. The lithium ion battery pack employing liquid cooling of claim 6, wherein the connecting tab surface is coated with a conductive paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920953226.1U CN210092167U (en) | 2019-06-24 | 2019-06-24 | Lithium ion battery pack adopting liquid cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920953226.1U CN210092167U (en) | 2019-06-24 | 2019-06-24 | Lithium ion battery pack adopting liquid cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210092167U true CN210092167U (en) | 2020-02-18 |
Family
ID=69483916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920953226.1U Expired - Fee Related CN210092167U (en) | 2019-06-24 | 2019-06-24 | Lithium ion battery pack adopting liquid cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210092167U (en) |
-
2019
- 2019-06-24 CN CN201920953226.1U patent/CN210092167U/en not_active Expired - Fee Related
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Legal Events
| 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: 20200218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |