CN212230498U - Thermal diffusion protector, battery module and car - Google Patents
Thermal diffusion protector, battery module and car Download PDFInfo
- Publication number
- CN212230498U CN212230498U CN202021141822.9U CN202021141822U CN212230498U CN 212230498 U CN212230498 U CN 212230498U CN 202021141822 U CN202021141822 U CN 202021141822U CN 212230498 U CN212230498 U CN 212230498U
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- sheet
- thermal diffusion
- protection
- protection device
- battery module
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 39
- 230000001012 protector Effects 0.000 title abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 12
- 230000009471 action Effects 0.000 abstract description 6
- 239000011521 glass Substances 0.000 description 13
- 238000012216 screening Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer 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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a thermal diffusion protector, battery module and car relates to car technical field. The thermal diffusion protection device comprises: a thermal diffusion protection device, a support; a first protective sheet disposed below the bracket; wherein, a plurality of avoiding holes are arranged on the first protective sheet; be provided with the bellying on the support, the bellying is in the planar orthographic projection of first protection piece place covers a plurality ofly dodge the hole, just the bellying with form the interval space between the first protection piece. Form through support, first protection piece and second protection piece and be used for deriving the flow channel who has thermal gas and electrolyte, derive the battery module with gas and electrolyte that the electric core that will take place thermal runaway produced, prevent that it from producing heat-conduction with other electric cores, play the guard action, prevent that the battery module from taking place thermal runaway.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to thermal diffusion protector, battery module and car.
Background
The new energy automobile battery system is currently severe in terms of safety problems, wherein the cause of fire is basically that the single battery is exploded and ignited, thereby causing the whole module and the battery system to catch fire. In order to reduce the thermal runaway of the module caused by the cell monomer, a new solution is provided for the module. Through a large amount of experiments and principle analysis, the reason that arouses module thermal diffusion is mainly because the electric core of out of control gives adjacent battery heat transfer in the short time, arouses out of control of adjacent battery, and then causes whole module and system PACK's out of control to bring the safety risk for the passenger.
At present, in a mainstream battery factory and a host factory, a battery core and a battery core are mainly used for increasing heat insulation materials in a module heat dissipation method, so that heat conduction between the battery core and a contact surface of the battery core is reduced, but a failed battery can spray a large amount of high-temperature gas and liquid from an explosion-proof valve at the upper part of the battery during heat diffusion of the battery, and the gas and the liquid are not effectively isolated from other non-failed batteries, so that heat diffusion failure is caused.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a thermal diffusion protector, battery module and car for solve and how to carry out the thermal diffusion to the battery that became invalid and prevent the problem of heat conduction to adjacent battery.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a thermal diffusion protection device comprising:
a support;
a first protective sheet disposed below the bracket;
wherein, a plurality of avoiding holes are arranged on the first protective sheet;
be provided with the bellying on the support, the bellying is in the planar orthographic projection of first protection piece place covers a plurality ofly dodge the hole, just the bellying with form the interval space between the first protection piece.
Further, a second protective sheet is arranged between the bracket and the first protective sheet, and a spacing space is also arranged between the lug boss and the second protective sheet, and forms a flow channel.
Further, the second protection piece is including sealing the plane lamellar body, it is in to seal the plane lamellar body the orthographic projection on first protection piece place plane covers a plurality ofly dodge the hole.
Further, the protruding portion extends from a first end of the bracket to an opposite second end, wherein a direction from the first end to the second end is an arrangement direction of the plurality of avoidance holes.
Furthermore, the second protection sheet is made of mica sheets.
Furthermore, the first protection sheet is made of a heat insulating material.
Further, the holder is adhered to the second protective sheet; the first protective sheet and the second protective sheet are bonded.
Furthermore, a plurality of first through holes are respectively formed in the two sides of the protruding portion on the support; a plurality of second through holes are respectively formed in the first protection sheet and on two sides of the avoidance hole; a plurality of third through holes are respectively formed in the two sides of the closed plane sheet body on the second protective sheet;
the orthographic projection of the first through hole on the plane where the first protection sheet is located covers the second through hole, and the orthographic projection of the first through hole on the plane where the second protection sheet is located covers the third through hole.
The embodiment of the utility model also provides a battery module, which comprises a plurality of battery units arranged side by side and the thermal diffusion protection device;
each battery unit is correspondingly provided with one thermal diffusion protection device in a laminating manner, the battery unit is provided with an explosion-proof valve, and the avoidance hole is located above the explosion-proof valve.
The embodiment of the utility model provides a still provide an automobile, including foretell battery module.
The utility model has the advantages that:
above-mentioned scheme forms through support, first protection piece and second protection piece and is used for deriving the flow channel who has thermal gas and electrolyte, and the battery module is derived to gas and electrolyte that the electric core that will take place thermal runaway produced, prevents that it from producing heat-conduction with other electric cores, plays the guard action, prevents that the battery module from taking place thermal runaway.
Drawings
FIG. 1 shows one of the schematic structural views of a thermal diffusion barrier according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a thermal diffusion protection device according to an embodiment of the present invention;
fig. 3 is a third schematic structural view of a thermal diffusion protection device according to an embodiment of the present invention;
fig. 4 shows a fourth schematic structural view of the thermal diffusion protection device according to the embodiment of the present invention.
Description of reference numerals:
1-a scaffold; 11-a boss; 12-a first via; 2-a first protective sheet; 21-avoiding holes; 22-a second via; 3-a second protective sheet; 31-a closed planar sheet; 32-a third via; 4-flow channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses to how to carry out the problem that thermal diffusion prevented heat conduction to adjacent battery to the inefficacy battery, provide a thermal diffusion protector, battery module and car.
As shown in fig. 1 to 4, an embodiment of the present invention provides a thermal diffusion protection device, including:
a bracket 1; a first protective sheet 2 disposed below the holder 1; wherein, a plurality of avoidance holes 21 are arranged on the first protection sheet 2; be provided with bellying 11 on the support 1, bellying 11 is in the planar orthographic projection of first protection piece 2 covers a plurality ofly dodge hole 21, just bellying 11 with form the interval space between the first protection piece 2.
A second protection sheet 3 is arranged between the bracket 1 and the first protection sheet 2, and a spacing space is also arranged between the lug boss 11 and the second protection sheet 3, and forms a flow channel 4.
The embodiment of the utility model provides a form through support, first protection piece and second screening glass and be used for deriving the flow channel who has thermal gas and electrolyte, the battery module is derived to gas and electrolyte that the electric core that will take place the thermal runaway produced, prevents that it from producing heat-conduction with other electric cores, plays the guard action, prevents that the battery module from taking place the thermal runaway.
The reason that electric automobile's battery module takes place thermal runaway is hot conduction mainly, consequently, can effectively reduce the risk that takes place thermal runaway through reducing heat exchange between the electricity core. The embodiment of the utility model provides a through adopting this thermal diffusion protector, dodge the top position that hole 21 is located the explosion-proof valve of battery cell, when the battery cell takes place the thermal runaway, the battery cell can be washed out through explosion-proof valve to the gaseous and electrolyte that have a large amount of heats that produce in the electricity core, and this thermal diffusion protector's second screening glass 2 is broken through, gaseous and electrolyte continue upwards to spray, because stopping of support 1, change into the horizontal flow, and then through this flow channel 4 discharge battery module, at this in-process, because the setting of first screening glass 2 and second screening glass 3 can keep apart heat and other battery cells, thereby play the guard action, prevent that battery module from taking place the thermal runaway.
Specifically, the second protection sheet 3 includes a closed plane sheet 31, the closed plane sheet 31 covers a plurality of the avoidance holes 21 in the orthographic projection of the plane where the first protection sheet 2 is located. The protruding portion 11 extends from the first end of the bracket 1 to the opposite second end, wherein the direction from the first end to the second end is a plurality of the arrangement direction of the avoiding holes 21. The bracket 1 is adhered with the second protection sheet 3; the first protective sheet 2 and the second protective sheet 3 are bonded.
The first protective sheet 2 is made of a heat insulating material. The second protection plate 3 is made of mica sheets. When electric core takes place thermal runaway, need break through the sealed plane lamellar body 31 of second screening glass 3 through gas and the liquid of explosion-proof valve spun, so second screening glass 3 should not too thick, if too thin can't play thermal-insulated effect again, so first screening glass 2 mainly plays thermal-insulated effect.
Specifically, in order to perform a thermal diffusion effect on the battery module and provide a space for not affecting the subsequent connection of each cell post on the battery unit, the post position needs to be avoided, and the posts are usually located on two sides of the explosion-proof valve, so that a plurality of first through holes 12 are respectively arranged on two sides of the protruding portion 11 on the bracket 1; a plurality of second through holes 22 are respectively formed in the first protection sheet 2 on two sides of the avoidance hole 21; a plurality of third through holes 32 are respectively arranged on two sides of the closed plane sheet 31 on the second protective sheet 3;
wherein, the orthographic projection of the first through hole 12 on the plane of the first protection sheet 2 covers the second through hole 22, and the orthographic projection of the first through hole 12 on the plane of the second protection sheet 3 covers the third through hole 32.
The embodiment of the utility model also provides a battery module, which comprises a plurality of battery units arranged side by side and the thermal diffusion protection device;
each battery unit is correspondingly provided with one thermal diffusion protection device in a laminating manner, each battery unit is provided with an explosion-proof valve, and the avoidance hole 21 is located above the explosion-proof valve.
It should be noted that, be provided with this thermal diffusion protector's battery module, can be when the battery unit takes place thermal runaway, the battery unit can be washed out through explosion-proof valve to the gas that has a large amount of heats and electrolyte that produce in the electricity core, and this thermal diffusion protector's second screening glass 2 is broken, gas and electrolyte continue upwards to spray, because the blocking of support 1, change into horizontal flow, and then through this flow channel 4 discharge battery module, at this in-process, because the setting of first screening glass 2 and second screening glass 3 can keep apart heat and other battery units, thereby play the guard action, prevent that the battery module from taking place thermal runaway.
The embodiment of the utility model provides a still provide an automobile, including foretell battery module.
It should be noted that, the car that is equipped with this battery module, can be when the battery unit takes place thermal runaway, the battery unit can be washed out through explosion-proof valve to the gas that has a large amount of heats and electrolyte that produce in the electricity core, and this thermal diffusion protector's second screening glass 2 is broken, gas and electrolyte continue upwards to spray, because the blockking of support 1, change into horizontal flow, and then through this flow channel 4 discharge battery module, at this in-process, because the setting of first screening glass 2 and second screening glass 3 can keep apart heat and other battery units, thereby play the guard action, prevent that the battery module from taking place thermal runaway. The battery module thermal runaway caused by the overcharge and the overdischarge of the battery in the use process of the automobile is inhibited, so that the safety accidents are reduced.
The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (10)
1. A thermal diffusion protection device, comprising:
a support (1);
a first protective sheet (2) arranged below the bracket (1);
wherein a plurality of avoiding holes (21) are arranged on the first protective sheet (2);
be provided with bellying (11) on support (1), bellying (11) are in the planar orthographic projection in first protection piece (2) place covers a plurality ofly dodge hole (21), just bellying (11) with form the interval space between first protection piece (2).
2. The thermal diffusion protection device according to claim 1, characterized in that a second protection sheet (3) is arranged between the holder (1) and the first protection sheet (2), and that there is also a spacing space between the protrusions (11) and the second protection sheet (3), which spacing space forms a flow channel (4).
3. The thermal diffusion protection device according to claim 2, characterized in that said second protection sheet (3) comprises a closed planar sheet (31), said closed planar sheet (31) covering a plurality of said avoiding holes (21) in an orthographic projection of said first protection sheet (2) in a plane thereof.
4. The thermal diffusion protection device according to claim 1, wherein the protrusion (11) extends from a first end to an opposite second end of the bracket (1), wherein the direction from the first end to the second end is an arrangement direction of the plurality of avoiding holes (21).
5. The thermal diffusion protection device according to claim 2, characterized in that the second protection sheet (3) is made of mica sheet.
6. The thermal diffusion protection device of claim 1, wherein the first protection sheet (2) is made of a heat insulating material.
7. The thermal diffusion protection device according to claim 2, characterized in that said support (1) is glued to said second protection sheet (3); the first protective sheet (2) and the second protective sheet (3) are adhered.
8. The thermal diffusion protection device according to claim 3, characterized in that on said support (1) a plurality of first through holes (12) are provided, respectively, on both sides of said boss (11); a plurality of second through holes (22) are respectively formed in the first protection sheet (2) and on two sides of the avoidance hole (21); a plurality of third through holes (32) are respectively formed in two sides of the closed plane sheet body (31) on the second protective sheet (3);
wherein, the orthographic projection of the first through hole (12) on the plane of the first protection sheet (2) covers the second through hole (22), and the orthographic projection of the first through hole (12) on the plane of the second protection sheet (3) covers the third through hole (32).
9. A battery module comprising a plurality of battery cells arranged side by side, characterized by further comprising a thermal diffusion protection device according to any one of claims 1 to 8;
each battery unit is correspondingly provided with one thermal diffusion protection device in a laminating manner, each battery unit is provided with an explosion-proof valve, and the avoidance hole (21) is located above the explosion-proof valve.
10. An automobile characterized by comprising the battery module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141822.9U CN212230498U (en) | 2020-06-18 | 2020-06-18 | Thermal diffusion protector, battery module and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141822.9U CN212230498U (en) | 2020-06-18 | 2020-06-18 | Thermal diffusion protector, battery module and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212230498U true CN212230498U (en) | 2020-12-25 |
Family
ID=73930344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021141822.9U Active CN212230498U (en) | 2020-06-18 | 2020-06-18 | Thermal diffusion protector, battery module and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212230498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006099A (en) * | 2021-10-29 | 2022-02-01 | 孚能科技(赣州)股份有限公司 | Battery module and battery package that delay thermal diffusion |
-
2020
- 2020-06-18 CN CN202021141822.9U patent/CN212230498U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006099A (en) * | 2021-10-29 | 2022-02-01 | 孚能科技(赣州)股份有限公司 | Battery module and battery package that delay thermal diffusion |
| CN114006099B (en) * | 2021-10-29 | 2023-11-28 | 孚能科技(赣州)股份有限公司 | Battery module and battery pack for delaying thermal diffusion |
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