CN219779060U - Heat dissipation explosion-proof type battery structure - Google Patents
Heat dissipation explosion-proof type battery structure Download PDFInfo
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- CN219779060U CN219779060U CN202320311095.3U CN202320311095U CN219779060U CN 219779060 U CN219779060 U CN 219779060U CN 202320311095 U CN202320311095 U CN 202320311095U CN 219779060 U CN219779060 U CN 219779060U
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- Prior art keywords
- battery
- explosion
- proof
- piece
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 39
- 238000009423 ventilation Methods 0.000 claims abstract description 39
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 46
- 229910052759 nickel Inorganic materials 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 4
- 235000007340 Hordeum vulgare Nutrition 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 240000005979 Hordeum vulgare Species 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 9
- 229910001416 lithium ion Inorganic materials 0.000 description 9
- 238000004880 explosion Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000209219 Hordeum Species 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a heat dissipation explosion-proof battery structure, which comprises a shell component, a battery unit, an explosion-proof piece, a waterproof ventilation piece and a protective cover, wherein the shell component is arranged on the shell component; the battery unit comprises a plurality of battery cells, the shell component is provided with a first through hole, a second through hole and a plurality of battery bins matched with the battery cells, the battery bins correspond to the battery cells one by one, the battery cells are arranged in the battery bins, and the first through hole and the second through hole are communicated with the battery bins; the waterproof ventilation piece encapsulates the first through hole, the protective cover is arranged outside the waterproof ventilation piece, the protective plate is of a net structure and is provided with a plurality of protrusions arranged towards the waterproof ventilation piece, and when the air pressure in the battery bin reaches a first threshold value, the protrusions puncture the waterproof ventilation piece to accelerate pressure relief; the explosion-proof piece is arranged on the second through hole, and when the air pressure in the battery bin reaches a second threshold value, the explosion-proof piece automatically explodes. The utility model solves the problem of difficult heat dissipation of the battery structure by using the waterproof breathable piece, and solves the problem of low safety performance of the battery structure by using the protective cover and the explosion-proof piece.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a heat dissipation explosion-proof battery structure.
Background
In recent years, lithium ion batteries are being pursued by the public with various advantages such as environmental protection and large specific energy, and are widely applied to various industries.
Although lithium-ion batteries have many advantages, the disadvantages of lithium-ion batteries are not quite as varied, and current lithium-ion batteries generally suffer from two problems:
firstly, the heat dissipation of lithium ion battery group is difficult, and prior art sets up the louvre on the casing generally and strengthens the heat dissipation, and though effective, the rainwater also can get into in the lithium battery group along with the louvre, shortens the life of lithium battery group.
Secondly, the safety performance of the lithium ion battery pack is poor, an explosion-proof piece is not arranged in the prior art, and a large amount of gas is easily accumulated due to the damaged battery cell, so that the safety accident of combustion or explosion occurs.
Therefore, an improvement is needed to be made on the lithium ion battery pack in the prior art to solve the technical problems of difficult heat dissipation and low safety performance of the lithium ion battery pack.
Disclosure of Invention
The utility model aims to provide a radiating explosion-proof battery structure so as to solve the technical problems of difficult radiating and low safety performance of a lithium ion battery pack in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a heat dissipation explosion-proof battery structure comprises a shell component, a battery unit, an explosion-proof piece, a waterproof and breathable piece and a protective cover;
the battery unit comprises a plurality of battery cells, the shell assembly is provided with a first through hole, a second through hole and a plurality of battery bins matched with the battery cells, the battery bins correspond to the battery cells one by one, the battery cells are arranged in the battery bins, and the first through hole and the second through hole are communicated with the battery bins;
the waterproof ventilation piece encapsulates the first through hole, the protective cover is arranged outside the waterproof ventilation piece, the protective plate is of a net structure and is provided with a plurality of protrusions arranged towards the waterproof ventilation piece, and when the air pressure in the battery compartment reaches a first threshold value, the protrusions pierce the waterproof ventilation piece to accelerate pressure relief;
the explosion-proof piece is arranged on the second through hole, and when the air pressure in the battery compartment reaches a second threshold value, the explosion-proof piece automatically explodes.
Preferably, the first threshold is higher than the second threshold, the explosion-proof piece is any one of an explosion-proof plug, an explosion-proof piece, an explosion-proof membrane or an explosion-proof valve, the waterproof ventilation piece is a waterproof ventilation membrane, and the waterproof ventilation membrane is packaged on the first through hole by adopting a pasting or hot pressing process.
Preferably, the heat dissipation explosion-proof battery structure further comprises a buffer pad, and the buffer pad is arranged on the inner surface of the shell assembly.
Preferably, the heat dissipation explosion-proof battery structure further comprises a protection plate, wherein the protection plate is electrically connected with the battery unit, and the protection plate is used for conducting charge and discharge protection on the battery unit.
Preferably, the heat dissipation explosion-proof battery structure further comprises a charging terminal and a discharging terminal, the charging terminal and the discharging terminal are electrically connected with the protection plate, the shell assembly is provided with an avoidance port, the discharging terminal and the charging terminal penetrate through the avoidance port, the power supply is connected with the charging terminal so as to charge the battery unit, and the discharging terminal is electrically connected with external equipment so as to supply power to the external equipment.
Preferably, the plurality of battery bins are arranged along the preset direction of the shell assembly, and the plurality of battery cells are arranged in series, parallel or series-parallel.
Preferably, the heat dissipation explosion-proof battery structure further comprises a nickel sheet assembly and an insulating piece, wherein the nickel sheet assembly is electrically connected with the battery unit and the protection plate, and the outer ends of the positive electrode and the negative electrode of the battery unit are bonded with the insulating piece.
Preferably, the multiple sections of electric cores are arranged in parallel, the nickel sheet assembly comprises an anode nickel sheet and a cathode nickel sheet, the anode nickel sheet is connected with the protection plate and anodes of all the electric cores, and the cathode nickel sheet is connected with cathodes of all the electric cores and is connected with the protection plate through a cathode line spot welding.
Preferably, the shell assembly comprises an upper shell and a lower shell, one of the upper shell and the lower shell is provided with a convex block, the other one is provided with a groove matched with the convex block, and the upper shell and the lower shell are clamped.
Preferably, the waterproof breathable film is any one of polytetrafluoroethylene, polyethylene or thermoplastic polyurethane elastomer, and the insulating piece is highland barley paper.
Compared with the prior art, the utility model has the beneficial effects that:
the heat dissipation explosion-proof battery structure is provided with the shell assembly, the battery unit, the explosion-proof piece, the waterproof ventilation piece and the protective cover, wherein the shell assembly is provided with the first through hole, the second through hole and the battery bin for accommodating the battery unit, the waterproof ventilation piece encapsulates the first through hole, the waterproof ventilation piece can take away heat in the shell assembly and can block water from entering the shell assembly, the problem of difficult heat dissipation of the battery structure is solved, is additionally provided with the explosion-proof piece and the protective cover, the protective cover is arranged outside the waterproof ventilation piece and provided with the protrusions arranged towards the waterproof ventilation piece, the explosion-proof piece is arranged on the second through hole, when air pressure in the shell assembly is accumulated to a second threshold value, the explosion-proof piece automatically explodes and quickens pressure release, and when the air pressure in the shell assembly is continuously increased to the first threshold value, the protrusions on the protective cover puncture the waterproof ventilation piece, so that the safety accident of combustion or explosion caused by air accumulation of the battery structure is greatly avoided, and compared with the traditional battery structure, the heat dissipation explosion-proof battery structure is long in service life, and heat dissipation performance are greatly enhanced.
Drawings
Fig. 1 is an exploded view of a heat dissipation explosion-proof battery structure of the present utility model;
FIG. 2 is a schematic structural view of the protective cover of the present utility model;
FIG. 3 is a schematic structural view of the housing assembly of the present utility model;
fig. 4 is a schematic structural view of the charge terminal and the discharge terminal of the present utility model.
Illustration of: the battery pack comprises an upper shell 1, a lower shell 2, a first through hole 3, a second through hole 4, a battery compartment 5, a waterproof and breathable piece 6, an explosion-proof piece 7, a protection board 8, a charging terminal 9, a discharging terminal 10, a positive electrode nickel piece 11, a negative electrode nickel piece 12, an insulating piece 13, a battery cell 14, a protection cover 15 and a protrusion 16.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the heat dissipation explosion-proof battery structure of the present embodiment includes a housing assembly, a battery unit, an explosion-proof member, a waterproof and breathable member 6 and a protective cover 15;
the battery unit comprises a plurality of battery cells 14, the shell component is provided with a first through hole 3, a second through hole 4 and a plurality of battery bins 5 matched with the battery cells 14, the battery bins 5 are in one-to-one correspondence with the battery cells 14, the battery cells 14 are arranged in the battery bins 5, and the first through hole 3 and the second through hole 4 are communicated with the battery bins 5;
the waterproof ventilation piece 6 encapsulates the first through hole 3, the protective cover 15 is arranged outside the waterproof ventilation piece 6, the protective plate 8 is of a net structure and is provided with a plurality of protrusions 16 arranged towards the waterproof ventilation piece 6, and when the air pressure in the battery compartment 5 reaches a first threshold value, the protrusions 16 pierce the waterproof ventilation piece 6 to accelerate pressure relief;
the explosion-proof piece is arranged on the second through hole 4, and when the air pressure in the battery compartment 5 reaches a second threshold value, the explosion-proof piece automatically explodes.
It should be noted that, the first threshold value is larger than the second threshold value, the housing assembly is provided with the first through hole 3, the second through hole 4 and the battery compartment 5 for accommodating the battery unit, the waterproof ventilation member 6 encapsulates the first through hole 3, the waterproof ventilation member 6 can take away heat in the housing assembly and simultaneously block water from entering the housing assembly, the problem of difficult heat dissipation of the battery structure is solved, the protection cover 15 is arranged outside the waterproof ventilation member 6 and is provided with the plurality of protrusions 16 arranged towards the waterproof ventilation member 6, the explosion-proof member is arranged on the second through hole 4, when air pressure in the housing assembly is accumulated to the second threshold value, the explosion-proof member automatically bursts and releases pressure, when the air pressure in the housing assembly is continuously increased to the first threshold value, the protrusions 16 on the protection cover 15 can puncture the waterproof ventilation member 6 except for the automatic explosion of the explosion-proof member, at this time, compared with the traditional battery structure, the service life of the explosion-proof battery structure is long, the heat dissipation performance and the safety performance are also greatly enhanced, and of course, the requirement of the utility model is that the heat dissipation performance of the first threshold value and the second threshold value can not be set according to the requirement of people.
Specifically, the explosion-proof piece is any one of an explosion-proof plug, an explosion-proof membrane, an explosion-proof sheet 7 or an explosion-proof valve, the waterproof breathable piece 6 is a waterproof breathable membrane, and the waterproof breathable membrane is sealed on the first through hole 3 by adopting a pasting or hot pressing process.
Preferably, the waterproof breathable film is any one of polytetrafluoroethylene, polyethylene, or thermoplastic polyurethane elastomer. The size of the waterproof breathable film of the embodiment is slightly larger than that of the first through hole 3, so that the first through hole 3 can be covered, and meanwhile, a part of connecting edge can be reserved for hot pressing or pasting.
Specifically, in order to reduce the impact on the battery unit when the shell component falls, the heat dissipation explosion-proof battery structure also comprises a buffer cushion, and the buffer cushion is arranged on the inner surface of the shell component.
Specifically, the explosion-proof battery structure of heat dissipation still includes protection shield 8, and battery cell is connected to protection shield 8 electricity, and protection shield 8 is used for carrying out charge and discharge protection to the battery cell.
Specifically, referring to fig. 4, the heat dissipation explosion-proof battery structure further includes a charging terminal 9 and a discharging terminal 10, the charging terminal 9 and the discharging terminal 10 are electrically connected with the protection plate 8, the housing assembly is provided with an avoidance port, the discharging terminal 10 and the charging terminal 9 all penetrate through the avoidance port, and the power supply is connected with the charging terminal 9 to charge the battery unit, and the discharging terminal 10 is electrically connected with an external device to supply power to the external device. Of course, it should be noted that the interface types of the charging terminal 9 and the discharging terminal 10 are not limited in the present utility model, and in practical application, people can adjust the interface according to the needs.
Specifically, the battery bins 5 are arranged along the preset direction of the housing assembly, and the multiple battery cells 14 are arranged in series, parallel or series-parallel. The preset direction in this embodiment is the length direction of the housing assembly, however, it should be emphasized that the preset direction may be the width direction of the housing assembly, which is not limited in this utility model.
Specifically, the explosion-proof battery structure of heat dissipation still includes nickel piece subassembly and insulating part 13, and battery cell and protection shield 8 are connected to nickel piece subassembly electricity, and insulating part 13 is glued to the outer end of battery cell positive and negative pole.
Preferably, the insulating member 13 of the present utility model is highland barley paper,
specifically, the multiple battery cells 14 are arranged in parallel, the nickel plate assembly comprises an anode nickel plate 11 and a cathode nickel plate 12, the anode nickel plate 11 is connected with the protection plate 8 and anodes of all the battery cells 14, and the cathode nickel plate 12 is connected with cathodes of all the battery cells 14 and is connected with the protection plate 8 through a cathode wire spot welding.
Preferably, the housing assembly includes an upper shell 1 and a lower shell 2, one of the upper shell 1 and the lower shell 2 is provided with a bump, the other is provided with a groove matched with the bump, the upper shell 1 and the lower shell 2 are clamped together during assembly, and of course, it is noted that the upper shell 1 and the lower shell 2 can be further reinforced by bolts to connect, and the utility model is not limited to this.
In combination with fig. 1-4, the first through hole 3 is encapsulated by the waterproof ventilation piece 6, the waterproof ventilation piece 6 can take away heat in the shell assembly and can block water from entering the shell assembly, so that the problem of difficult heat dissipation of a battery structure is solved, in addition, the explosion-proof piece and the protective cover 15 are additionally arranged, the protective cover 15 is arranged outside the waterproof ventilation piece 6 and is provided with the plurality of protrusions 16 arranged towards the waterproof ventilation piece 6, the explosion-proof piece is arranged on the second through hole 4, when air pressure in the shell assembly is accumulated to a second threshold value, the explosion-proof piece automatically bursts to accelerate pressure release, when the air pressure in the shell assembly is continuously increased to the first threshold value, the protrusions 16 on the protective cover 15 puncture the waterproof ventilation piece 6 except for the automatic burst of the explosion-proof piece, so that the safety accident of combustion or explosion caused by air accumulation of the battery structure is greatly avoided, and compared with the traditional battery structure, the heat dissipation and explosion-proof battery structure has greatly improved heat dissipation performance and safety performance.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A heat dissipation explosion-proof battery structure, its characterized in that: the battery pack comprises a shell assembly, a battery unit, an explosion-proof piece, a waterproof and breathable piece, a protection plate and a protection cover;
the battery unit comprises a plurality of battery cells, the shell assembly is provided with a first through hole, a second through hole and a plurality of battery bins matched with the battery cells, the battery bins correspond to the battery cells one by one, the battery cells are arranged in the battery bins, and the first through hole and the second through hole are communicated with the battery bins;
the waterproof ventilation piece encapsulates the first through hole, the protective cover is arranged outside the waterproof ventilation piece, the protective plate is of a net structure and is provided with a plurality of protrusions arranged towards the waterproof ventilation piece, and when the air pressure in the battery compartment reaches a first threshold value, the protrusions pierce the waterproof ventilation piece to accelerate pressure relief;
the explosion-proof piece is arranged on the second through hole, and when the air pressure in the battery compartment reaches a second threshold value, the explosion-proof piece automatically explodes.
2. The heat dissipation explosion-proof battery structure as set forth in claim 1, wherein: the first threshold is higher than the second threshold, the explosion-proof piece is any one of an explosion-proof plug, an explosion-proof piece, an explosion-proof membrane or an explosion-proof valve, the waterproof ventilation piece is a waterproof ventilation membrane, and the waterproof ventilation membrane is packaged on the first through hole by adopting a pasting or hot pressing process.
3. The heat dissipation explosion-proof battery structure as set forth in claim 1, wherein: the device also comprises a cushion pad, wherein the cushion pad is arranged on the inner surface of the shell assembly.
4. The heat dissipation explosion-proof battery structure as set forth in claim 2, wherein: the battery pack further comprises a protection plate, wherein the protection plate is electrically connected with the battery unit, and the protection plate is used for protecting the battery unit from charge and discharge.
5. The heat dissipation explosion-proof battery structure as set forth in claim 4, wherein: the battery pack is characterized by further comprising a charging terminal and a discharging terminal, the charging terminal and the discharging terminal are electrically connected with the protection plate, the shell assembly is provided with an avoidance port, the discharging terminal and the charging terminal penetrate through the avoidance port, the power supply is connected with the charging terminal so as to charge the battery unit, and the discharging terminal is electrically connected with external equipment so as to supply power to the external equipment.
6. The heat dissipation explosion-proof battery structure as set forth in claim 1, wherein: the battery bins are arranged along the preset direction of the shell assembly, and the multiple battery cores are arranged in series, parallel or series-parallel.
7. The heat dissipation explosion-proof battery structure as set forth in claim 4, wherein: the battery pack comprises a battery unit, a protective plate, a nickel sheet assembly and an insulating piece, wherein the nickel sheet assembly is electrically connected with the battery unit and the protective plate, and the outer ends of the anode and the cathode of the battery unit are adhered to the insulating piece.
8. The heat dissipation explosion-proof battery structure as set forth in claim 7, wherein: the multi-section battery cells are arranged in parallel, the nickel plate assembly comprises an anode nickel plate and a cathode nickel plate, the anode nickel plate is connected with the protection plate and anodes of all the battery cells, and the cathode nickel plate is connected with cathodes of all the battery cells and is connected with the protection plate through a cathode line spot welding.
9. The heat dissipation explosion-proof battery structure as set forth in claim 1, wherein: the shell assembly comprises an upper shell and a lower shell, one of the upper shell and the lower shell is provided with a convex block, the other one of the upper shell and the lower shell is provided with a groove matched with the convex block, and the upper shell and the lower shell are connected in a clamping mode.
10. The heat dissipation explosion-proof battery structure as set forth in claim 7, wherein: the waterproof and breathable film is any one of polytetrafluoroethylene, polyethylene or thermoplastic polyurethane elastomer, and the insulating piece is highland barley paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320311095.3U CN219779060U (en) | 2023-02-24 | 2023-02-24 | Heat dissipation explosion-proof type battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320311095.3U CN219779060U (en) | 2023-02-24 | 2023-02-24 | Heat dissipation explosion-proof type battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219779060U true CN219779060U (en) | 2023-09-29 |
Family
ID=88132137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320311095.3U Active CN219779060U (en) | 2023-02-24 | 2023-02-24 | Heat dissipation explosion-proof type battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219779060U (en) |
-
2023
- 2023-02-24 CN CN202320311095.3U patent/CN219779060U/en active Active
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