CN211150625U - Lithium ion battery with explosion-proof structure - Google Patents
Lithium ion battery with explosion-proof structure Download PDFInfo
- Publication number
- CN211150625U CN211150625U CN201922234548.3U CN201922234548U CN211150625U CN 211150625 U CN211150625 U CN 211150625U CN 201922234548 U CN201922234548 U CN 201922234548U CN 211150625 U CN211150625 U CN 211150625U
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- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- explosion
- main body
- battery main
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- 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.)
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 69
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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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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- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A lithium ion battery with an explosion-proof structure comprises a lithium ion battery main body, a shell, a fixing block, a transverse plate, an explosion-proof membrane, a fixing plate, a positive electrode joint, a negative electrode joint, a lug, a power device and fan blades; the two fixing blocks are oppositely arranged on the inner side wall of the shell; the lithium ion battery main body is arranged between the two fixed blocks; the transverse plate is arranged between the inner side walls of the shell; the transverse plate is provided with a groove; the anti-explosion film is arranged between the lithium ion battery main body and the transverse plate, and two ends of the anti-explosion film are fixed on the transverse plate; the explosion-proof film is provided with an air outlet; one side of the groove on the transverse plate is provided with the vent hole, the utility model has simple structure, can detect the temperature of the lithium ion battery main body in real time, and can cool down in time when detecting that the temperature is too high; and when the pressure intensity is increased due to the gas generated in the lithium ion battery main body, the gas in the lithium ion battery main body can be discharged in time, so that the explosion of the lithium ion battery main body is prevented, and the service life of the lithium ion battery main body is prolonged.
Description
Technical Field
The utility model relates to a lithium ion battery technical field especially relates to a lithium ion battery with explosion-proof structure.
Background
With the rapid development and application of lithium batteries, the safety and the universality of the batteries are concerned, and the main factor influencing the safety and the stability of the batteries is the temperature. When the internal temperature of the battery is too high, the greater the heating effect is, the greater the possibility of explosion of the battery is, and the lithium ion battery generates certain gas under the influence of adverse factors such as high temperature, short circuit and overcharge, so that the pressure inside the lithium ion battery is increased, and further the shell of the lithium ion battery deforms and even explodes, and a larger potential safety hazard exists; the interior of the traditional lithium battery is not provided with an explosion-proof structure, so that the personal safety of users can not be effectively protected.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the technical problems existing in the background technology, the utility model provides a lithium ion battery with an explosion-proof structure, which has a simple structure, can detect the temperature of the lithium ion battery main body in real time, and can cool down in time when detecting that the temperature is too high; and when the pressure intensity is increased due to the gas generated in the lithium ion battery main body, the gas in the lithium ion battery main body can be discharged in time, so that the explosion of the lithium ion battery main body is prevented, and the service life of the lithium ion battery main body is prolonged.
(II) technical scheme
The utility model provides a lithium ion battery with explosion-proof structure, which comprises a lithium ion battery main body, a shell, two fixed blocks, a transverse plate, an explosion-proof membrane, a fixed plate, a positive electrode joint, a negative electrode joint, a lug, a power device and fan blades;
the two fixing blocks are oppositely arranged on the inner side wall of the shell; the lithium ion battery main body is arranged between the two fixed blocks; the transverse plate is arranged between the inner side walls of the shell; the transverse plate is provided with a groove; the anti-explosion film is arranged between the lithium ion battery main body and the transverse plate, and two ends of the anti-explosion film are fixed on the transverse plate; the explosion-proof film is provided with an air outlet; one side of the groove on the transverse plate is provided with a vent hole, the vent hole is not overlapped with the air outlet hole, and the transverse plate is provided with a mounting hole; the mounting hole is positioned right below the vent hole and communicated with the vent hole, and the upper end of the mounting hole is provided with a certain taper; the fixing plate is arranged at the bottom of the mounting hole; a plurality of air guide holes are arranged on the fixing plate; a pressure relief mechanism is arranged on the fixing plate; the pressure relief mechanism is positioned in the mounting hole;
the pressure relief mechanism comprises a mounting seat, a sliding rod, an elastic piece and a plug; the mounting seat is arranged on the fixed plate; a sliding groove is arranged in the mounting seat, one end of the sliding rod is arranged in the sliding groove in a sliding manner, and the other end of the sliding rod is provided with a plug; an elastic part is arranged between one end of the sliding rod positioned in the sliding chute and the bottom of the sliding chute;
the positive electrode joint and the negative electrode joint are arranged on the lithium ion battery main body; the positive electrode joint and the negative electrode joint are respectively electrically connected with the two tabs through leads; the power device is arranged on the inner wall of the top of the shell, and the positive electrode and the negative electrode of the power device are respectively electrically connected with the positive electrode joint and the negative electrode joint through leads; the fan blades are in transmission connection with the power end of the power device; the bottom of one side of the shell is provided with an air hole.
Preferably, the fixed block is provided with a temperature controller; and a detection probe of the temperature controller is arranged on the outer wall of the lithium ion battery main body.
Preferably, an electromagnetic switch is arranged on a lead connected with the positive electrode interface and the positive electrode connector of the power device; the electromagnetic switch is electrically connected with the temperature controller.
Preferably, a filter plate is arranged in the air hole.
Preferably, the plug is a rubber plug, and the plug is in the shape of a frustum.
The above technical scheme of the utility model has following profitable technological effect:
the utility model discloses in, during the use, set for temperature range through temperature controller, the temperature of test probe real-time supervision lithium ion battery main part, correspond two utmost point ears with the positive negative pole of electrical apparatus and be connected and supply power, in the battery use, after the high temperature that surpasss temperature controller's when lithium ion battery main part sets for the temperature, test probe transmits the signal to temperature controller, temperature controller control electromagnetic switch closes the circuit, for the power device power supply, power device drives the flabellum and rotates and carries out the forced air cooling to lithium ion battery main part, when the temperature of lithium ion battery main part falls below temperature controller's setting for the temperature, temperature controller control electromagnetic switch closes, thereby make power device outage, reduce the consumption of electric energy, the energy saving, effectively cool down, prevent that the too high temperature of lithium ion battery main part from causing the explosion; when the electrolyte temperature in the lithium ion battery main part rose and produced the bubble, the rupture membrane bloated and made venthole and air vent intercommunication, and gaseous extrusion blocks up, blocks up and drives slide bar compression elastic component and open the breach, is the bubble discharge that produces in the lithium ion battery main part to effective pressure release prevents that the too big package of playing of lithium ion battery main part internal pressure from prolonging the life of lithium ion battery main part.
Drawings
Fig. 1 is a schematic structural diagram of a lithium ion battery with an explosion-proof structure provided by the present invention.
Fig. 2 is an enlarged view of a position a in the lithium ion battery with the explosion-proof structure according to the present invention.
Reference numerals: 1. a lithium ion battery main body; 2. a housing; 21. air holes; 3. a fixed block; 4. a temperature controller; 5. a transverse plate; 51. a groove; 52. a vent hole; 53. mounting holes; 6. an explosion-proof membrane; 61. a vent hole; 7. a fixing plate; 71. an air vent; 8. a mounting seat; 9. a slide bar; 10. an elastic member; 11. blocking; 12. a positive electrode tab; 13. a negative electrode tab; 14. an electromagnetic switch; 15. a tab; 16. a power plant; 17. a fan blade.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the lithium ion battery with an explosion-proof structure provided by the present invention comprises a lithium ion battery main body 1, a housing 2, two fixing blocks 3, a transverse plate 5, an explosion-proof membrane 6, a fixing plate 7, a positive electrode connector 12, a negative electrode connector 13, a tab 15, a power device 16 and a fan blade 17;
the two fixing blocks 3 are oppositely arranged on the inner side wall of the shell 2; the lithium ion battery main body 1 is arranged between the two fixing blocks 3; the transverse plate 5 is arranged between the inner side walls of the shell 2; the transverse plate 5 is provided with a groove 51; the explosion-proof membrane 6 is arranged between the lithium ion battery main body 1 and the transverse plate 5, and two ends of the explosion-proof membrane 6 are fixed on the transverse plate 5; the explosion-proof film 6 is provided with an air outlet 61; a vent hole 52 is arranged on one side of the groove 51 on the transverse plate 5, the vent hole 52 is not overlapped with the air outlet 61, and a mounting hole 53 is arranged on the transverse plate 5; the mounting hole 53 is positioned under the vent hole 52 and communicated with the vent hole 52, and the upper end of the mounting hole 53 is provided with a certain taper; the fixing plate 7 is arranged at the bottom of the mounting hole 53; a plurality of air vents 71 are arranged on the fixing plate 7; a pressure relief mechanism is arranged on the fixing plate 7; the pressure relief mechanism is positioned in the mounting hole 53;
the pressure relief mechanism comprises a mounting seat 8, a sliding rod 9, an elastic piece 10 and a plug 11; the mounting seat 8 is arranged on the fixed plate 7; a sliding groove is formed in the mounting seat 8, one end of the sliding rod 9 is arranged in the sliding groove in a sliding mode, and a plug 11 is arranged at the other end of the sliding rod 9; an elastic part 10 is arranged between one end of the sliding rod 9 positioned in the sliding chute and the bottom of the sliding chute;
the positive electrode joint 12 and the negative electrode joint 13 are arranged on the lithium ion battery body 1; the positive electrode joint 12 and the negative electrode joint 13 are respectively electrically connected with two tabs 15 through leads; the power device 16 is arranged on the inner wall of the top of the shell 2, and the positive electrode and the negative electrode of the power device 16 are respectively and electrically connected with the positive electrode joint 12 and the negative electrode joint 13 through leads; the fan blade 17 is in transmission connection with the power end of the power device 16; the bottom of one side of the shell 2 is provided with an air hole 21.
In the utility model, when in use, the temperature controller 4 is used for setting the temperature range, the detection probe monitors the temperature of the lithium ion battery main body 1 in real time, the two pole lugs 15 are correspondingly connected with the positive pole and the negative pole of the electric appliance for supplying power, when the battery is in use, when the temperature of the lithium ion battery main body 1 is too high to exceed the set temperature of the temperature controller 4, the detection probe transmits a signal to the temperature controller 4, the temperature controller 4 controls the electromagnetic switch 14 to be connected with a circuit to supply power for the power device 16, the power device 16 drives the fan blades 17 to rotate to cool the lithium ion battery main body 1 in an air cooling way, when the temperature of the lithium ion battery main body 1 is reduced to be lower than the set temperature of the temperature controller 4, the temperature controller 4 controls the electromagnetic switch 14 to be closed, therefore, the power device 16 is powered off, the consumption of electric energy is reduced, energy is saved, the temperature is effectively reduced, and explosion caused by overhigh temperature of the lithium ion battery main body 1 is prevented; when the temperature of the electrolyte in the lithium ion battery main body 1 rises to generate bubbles, the explosion-proof membrane 6 is bulged to enable the air outlet 61 to be communicated with the air vent 52, the air is extruded to block 11, the block 11 drives the sliding rod 9 to compress the elastic piece 10 to open the notch, the bubbles generated in the lithium ion battery main body 1 are discharged, and therefore pressure is effectively relieved, the phenomenon that the pressure in the lithium ion battery main body 1 is too large to pack is prevented, and the service life of the lithium ion battery main body 1 is prolonged.
In an alternative embodiment, the fixed block 3 is provided with a temperature controller 4; the detection probe of the temperature controller 4 is arranged on the outer wall of the lithium ion battery main body 1, monitors the temperature of the lithium ion battery main body 1 in real time, cools down in time, prevents the lithium ion battery main body 1 from exploding due to overhigh temperature, and prolongs the service life of the lithium ion battery main body 1.
In an alternative embodiment, the electromagnetic switch 14 is arranged on a lead connected with the positive electrode connector 12 at the positive electrode interface of the power device 16; electromagnetic switch 14 and temperature controller 4 electric connection, steerable electromagnetic switch 14 is opened when the high temperature, supplies power to power device 16, and then effectively cools down lithium ion battery main part 1, the energy saving.
In an alternative embodiment, the air holes 21 are provided with the filter plates 18, and the air in the housing 2 is exhausted through the air holes 21 and the filter plates 18, and at the same time, the filter plates 18 can effectively filter the air entering the housing 2.
In an optional embodiment, the plug 11 is a rubber plug, and the plug 11 is in a frustum shape, so that the sealing effect is good, and the pressure relief is convenient.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. A lithium ion battery with an explosion-proof structure is characterized by comprising a lithium ion battery main body (1), a shell (2), two fixing blocks (3), a transverse plate (5), an explosion-proof membrane (6), a fixing plate (7), an anode electrode joint (12), a cathode electrode joint (13), a tab (15), a power device (16) and fan blades (17);
the two fixing blocks (3) are oppositely arranged on the inner side wall of the shell (2); the lithium ion battery main body (1) is arranged between the two fixing blocks (3); the transverse plate (5) is arranged between the inner side walls of the shell (2); the transverse plate (5) is provided with a groove (51); the explosion-proof membrane (6) is arranged between the lithium ion battery main body (1) and the transverse plate (5), and two ends of the explosion-proof membrane (6) are fixed on the transverse plate (5); the explosion-proof film (6) is provided with an air outlet (61); a vent hole (52) is formed in one side of the groove (51) in the transverse plate (5), the vent hole (52) is not overlapped with the air outlet hole (61), and a mounting hole (53) is formed in the transverse plate (5); the mounting hole (53) is positioned right below the vent hole (52) and communicated with the vent hole (52), and the upper end of the mounting hole (53) is provided with a certain taper; the fixing plate (7) is arranged at the bottom of the mounting hole (53); a plurality of air vents (71) are arranged on the fixing plate (7); a pressure relief mechanism is arranged on the fixing plate (7); the pressure relief mechanism is positioned in the mounting hole (53);
the pressure relief mechanism comprises a mounting seat (8), a sliding rod (9), an elastic piece (10) and a plug (11); the mounting seat (8) is arranged on the fixing plate (7); a sliding groove is formed in the mounting seat (8), one end of the sliding rod (9) is arranged in the sliding groove in a sliding mode, and a plug (11) is arranged at the other end of the sliding rod (9); an elastic part (10) is arranged between one end of the sliding rod (9) positioned in the sliding chute and the bottom of the sliding chute;
the positive electrode joint (12) and the negative electrode joint (13) are arranged on the lithium ion battery main body (1); the positive electrode joint (12) and the negative electrode joint (13) are respectively electrically connected with two tabs (15) through leads; the power device (16) is arranged on the inner wall of the top of the shell (2), and the positive electrode and the negative electrode of the power device (16) are respectively electrically connected with the positive electrode joint (12) and the negative electrode joint (13) through leads; the fan blade (17) is in transmission connection with the power end of the power device (16); an air hole (21) is arranged at the bottom of one side of the shell (2).
2. The lithium ion battery with the explosion-proof structure according to claim 1, wherein a temperature controller (4) is arranged on the fixing block (3); and a detection probe of the temperature controller (4) is arranged on the outer wall of the lithium ion battery main body (1).
3. The lithium ion battery with the explosion-proof structure is characterized in that an electromagnetic switch (14) is arranged on a lead connected with the positive electrode connector (12) and a positive interface of the power device (16); the electromagnetic switch (14) is electrically connected with the temperature controller (4).
4. The lithium ion battery with the explosion-proof structure according to claim 1, wherein a filter plate (18) is provided in the air hole (21).
5. The lithium ion battery with the explosion-proof structure is characterized in that the plug (11) is a rubber plug, and the shape of the plug (11) is a frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922234548.3U CN211150625U (en) | 2019-12-13 | 2019-12-13 | Lithium ion battery with explosion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922234548.3U CN211150625U (en) | 2019-12-13 | 2019-12-13 | Lithium ion battery with explosion-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211150625U true CN211150625U (en) | 2020-07-31 |
Family
ID=71746531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922234548.3U Expired - Fee Related CN211150625U (en) | 2019-12-13 | 2019-12-13 | Lithium ion battery with explosion-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211150625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361653A (en) * | 2022-03-03 | 2022-04-15 | 武汉理工大学 | Electric automobile battery deflagration emergency treatment device and electric automobile |
| CN114464934A (en) * | 2022-01-13 | 2022-05-10 | 深圳市格盛力能源有限公司 | Explosion-proof type lithium battery shell |
| CN115498355A (en) * | 2022-09-05 | 2022-12-20 | 电子科技大学长三角研究院(湖州) | Lithium ion battery explosion-proof device and explosion-proof lithium ion battery |
-
2019
- 2019-12-13 CN CN201922234548.3U patent/CN211150625U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464934A (en) * | 2022-01-13 | 2022-05-10 | 深圳市格盛力能源有限公司 | Explosion-proof type lithium battery shell |
| CN114361653A (en) * | 2022-03-03 | 2022-04-15 | 武汉理工大学 | Electric automobile battery deflagration emergency treatment device and electric automobile |
| CN114361653B (en) * | 2022-03-03 | 2022-06-21 | 武汉理工大学 | Electric automobile battery detonation emergency treatment device and electric automobile |
| CN115498355A (en) * | 2022-09-05 | 2022-12-20 | 电子科技大学长三角研究院(湖州) | Lithium ion battery explosion-proof device and explosion-proof lithium ion battery |
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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: 20200731 |