CN220065990U - Explosion venting structure of battery pack box - Google Patents
Explosion venting structure of battery pack box Download PDFInfo
- Publication number
- CN220065990U CN220065990U CN202321693490.9U CN202321693490U CN220065990U CN 220065990 U CN220065990 U CN 220065990U CN 202321693490 U CN202321693490 U CN 202321693490U CN 220065990 U CN220065990 U CN 220065990U
- Authority
- CN
- China
- Prior art keywords
- explosion venting
- box body
- connecting plates
- explosion
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000013022 venting Methods 0.000 title claims abstract description 130
- 238000004880 explosion Methods 0.000 title claims abstract description 127
- 238000007789 sealing Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 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
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
Abstract
The utility model belongs to the technical field of battery pack boxes, and relates to an explosion venting structure of a battery pack box. The explosion venting structure comprises: the box body is of a hollow structure; the explosion venting port extends into the box body along the outer side wall of the box body; the explosion venting device is fixed relative to the box body through the connecting structure, the explosion venting device seals the explosion venting opening, and the connecting structure fails after the pressure in the box body reaches a set value. According to the utility model, the explosion venting opening is formed in the box body, and the explosion venting piece is arranged on the explosion venting opening through the connecting structure, so that the connecting structure is disabled after the pressure in the box body reaches the threshold value, and the explosion venting piece is extruded from the explosion venting opening, and the pressure relief is realized after the explosion venting opening is opened.
Description
Technical Field
The utility model belongs to the technical field of battery pack boxes, and relates to an explosion venting structure of a battery pack box.
Background
The battery pack box is a box body in which a battery pack is packaged, and the battery stored in the battery pack box can be a single battery or a series-parallel battery module.
In the use process or the charging process of the energy storage battery, the internal pressure of the battery can be increased sharply and exceeds a safety threshold value due to short circuit or other conditions, explosion is caused when the internal pressure of the battery is severe, and hidden danger is caused to the personal safety of a user.
Disclosure of Invention
The utility model aims to solve the technical problems that: aiming at the technical problem in the background technology, the explosion venting structure of the battery pack box is provided, and the pressure relief of the battery pack box is realized.
The technical scheme provided by the utility model is as follows:
an explosion venting structure of a battery pack case, comprising:
the box body is of a hollow structure;
the explosion venting port extends into the box body along the outer side wall of the box body;
the explosion venting device is fixed relative to the box body through the connecting structure, the explosion venting device seals the explosion venting opening, and the connecting structure fails after the pressure in the box body reaches a set value.
Optionally, the explosion venting member is a GPS unit.
Optionally, a sealing element is arranged between the explosion venting member and the explosion venting port.
Optionally, the cross-sectional area of the explosion venting port is sequentially increased outwards along the inside of the box body, the cross-sectional area of the explosion venting member is sequentially increased outwards along the inside of the box body, and the taper of the explosion venting port is consistent with that of the explosion venting member.
Optionally, the connection structure includes at least two evenly distributed in let out the first connecting plate of exploding piece cross-sectional area less one end outer edge department, and first connecting plate is buckled the back and is closely with the box inner wall.
Optionally, connection structure includes two at least evenly distributed at the second connecting plate of letting out and exploding an lateral wall, and the second connecting plate is located and lets out the great one side of exploding an cross-sectional area, the box outer wall is equipped with a plurality of first mounting grooves with second connecting plate one-to-one, first mounting groove stretches into and lets out in the exploding mouthful, and in corresponding first mounting groove was gone into to the second connecting plate card, second connecting plate and first mounting groove bolt or welding.
Optionally, the explosion venting port is a step hole, a limiting groove is formed in the peripheral wall of one end of the explosion venting member, inserted into the explosion venting port, the outer side wall of the limiting groove is located in the small hole of the explosion venting port, and the outer side wall of the explosion venting member is tightly attached to the inner wall of the large hole of the explosion venting port.
Optionally, the connecting structure comprises at least two third connecting plates which are uniformly distributed at the outer edge of the smaller end of the cross section area of the explosion venting member, and the third connecting plates are tightly adhered to the inner wall of the box body after being bent.
Optionally, connection structure includes at least two evenly distributed and explodes the fourth connecting plate of piece lateral wall at letting out, and the fourth connecting plate is perpendicular with the lateral wall that explodes the piece that lets out, and the fourth connecting plate is located and lets out the great one side of a cross-sectional area that explodes the piece, the box outer wall be equipped with a plurality of and fourth connecting plate one-to-one second mounting grooves, the second mounting groove stretches into to let out in the mouth that explodes, in corresponding second mounting groove was gone into to fourth connecting plate card, fourth connecting plate and second mounting groove bolt or welding.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the explosion venting opening is formed in the box body, and the explosion venting piece is arranged on the explosion venting opening through the connecting structure, so that the connecting structure is disabled after the pressure in the box body reaches the threshold value, and the explosion venting piece is extruded from the explosion venting opening, and the pressure relief is realized after the explosion venting opening is opened.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the explosion venting port in embodiment 2 of the present utility model;
FIG. 3 is a schematic view of an explosion venting member with a first connection plate according to the present utility model;
FIG. 4 is a schematic view of an explosion venting member with a second connection plate according to the present utility model;
FIG. 5 is a schematic view of an explosion venting member with a third connection plate according to the present utility model;
FIG. 6 is a schematic view of an explosion venting member with a fourth connection plate according to the present utility model;
FIG. 7 is a top view of the explosion venting member of the present utility model;
fig. 8 is a schematic view of the explosion venting port in embodiment 3 of the present utility model.
In the figure: 1. a case; 2. explosion venting ports; 3. explosion venting pieces; 31. a limit groove; 4. a connection structure; 41. a first connection plate; 42. a second connecting plate; 43. a third connecting plate; 44. a fourth connecting plate; 5. a seal; 6. a first mounting groove; 7. and a second mounting groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
Referring to fig. 1-8, an explosion venting structure of a battery pack case includes:
the box body 1, the box body 1 is a hollow structure;
the explosion venting port 2 extends into the box body 1 along the outer side wall of the box body 1;
the explosion venting device comprises an explosion venting piece 3 and a connecting structure 4, wherein the explosion venting piece 3 is fixed relative to the box body 1 through the connecting structure 4, the explosion venting piece 3 seals the explosion venting port 2, and the connecting structure 4 fails after the pressure in the box body 1 reaches a set value.
As a further scheme, the explosion venting member 3 is a GPS unit, and the GPS unit is adopted as the explosion venting member 3, so that the cost for independently manufacturing the explosion venting member 3 is reduced, and the installation time is saved. Obviously, the explosion venting member 3 is not limited, and other units, such as a marking unit, a power interface, etc., may be used.
As a further scheme, a sealing piece 5 is arranged between the explosion venting piece 3 and the explosion venting port 2, and the sealing piece 5 is used for sealing a gap between the explosion venting piece 3 and the explosion venting port 2, so that impurities such as moisture and the like are prevented from entering the box body 1 in the daily use process.
Example 2
The structures of the explosion venting member 3 and the explosion venting port 2 are described in detail.
Referring to fig. 2, the cross-sectional area of the explosion venting port 2 is sequentially increased outwards along the inside of the box body 1, and referring to fig. 3 and 4, the cross-sectional area of the explosion venting member 3 is sequentially increased outwards along the inside of the box body 1, and the conicity of the explosion venting port 2 is consistent with that of the explosion venting member 3.
The connection structure 4 will be described in detail based on the structures of the explosion venting port 2 and the explosion venting member 3 in the present embodiment.
Referring to fig. 3, one of the connection structures 4 is: at least two first connecting plates 41 which are uniformly distributed at the outer edge of the smaller end of the cross section area of the explosion venting member 3 are adopted, and the first connecting plates 41 are tightly attached to the inner wall of the box body 1 after being bent.
During specific installation, the first connecting plate 41 is perpendicular to the end face of the explosion venting member 3, after the first connecting plate 41 is inserted into the explosion venting port 2, the first connecting plate 41 is bent by a stamping process, and the bent horizontal end of the first connecting plate is tightly attached to the inner wall of the box body 1.
In order to ensure that the connection structure 4 fails when the pressure in the case 1 reaches a predetermined value, the cross-sectional area of the first connection plate 41 needs to be determined according to the set pressure value and the material of the first connection plate 41, so that the first connection plate 41 can deform under the action of pressure when the pressure reaches the predetermined value, and is separated from the inner wall of the case 1.
In order to ensure that the first connecting plate 41 is firmly attached to the inner wall of the box body 1, the first connecting plate 41 can be fixed to the inner wall of the box body 1 in a bolting or welding mode. When bolting or welding is adopted, referring to fig. 7, a fracture guide line may be disposed on the bending surface of the first connecting plate 41 (the fracture guide line may be disposed on one side or both sides), and a through groove may be further formed at the bending portion of the first connecting plate 41.
Referring to fig. 4, one of the connection structures 4 is: adopt at least two evenly distributed to let out the second connecting plate 42 of exploding piece 3 lateral wall, obviously, here second connecting plate 42 level sets up, and second connecting plate 42 is located let out the great one side of exploding piece 3 cross-sectional area, box 1 outer wall is equipped with a plurality of first mounting grooves 6 with second connecting plate 42 one-to-one, first mounting groove 6 stretches into let out in exploding mouth 2, and second connecting plate 42 card is gone into corresponding first mounting groove 6, second connecting plate 42 and first mounting groove 6 bolt or welding.
In order to ensure that the connecting structure 4 can fail when the pressure in the box body 1 reaches a preset value, when bolting is adopted, a explosion venting bolt can be adopted, and when the pressure in the box body 1 reaches the preset value, the bolt fails, and the explosion venting piece 3 and the second connecting plate 42 can be separated from the explosion venting port 2. With bolting, referring to fig. 7, a fracture guide line may be provided on the surface of the second connecting plate 42, and the fracture guide line may be provided on one side, or may be provided on both sides at the same time, or may further be provided with a through groove at the location where the fracture guide line is provided. Obviously, the second solution is also applicable to welding.
In this embodiment, the sealing member 5 (not shown) is a sealing ring or a sealing gasket, and the installation position of the sealing ring or the sealing gasket is between the inner wall of the explosion venting port 2 and the outer wall of the explosion venting member 3.
Example 3
A vent 2 and a vent member 3 different from those of example 2 are provided.
Referring to fig. 8, the explosion venting port 2 is a stepped hole. Referring to fig. 5 and 6, a limiting groove 31 is formed in the outer peripheral wall of one end of the explosion venting member 3 inserted into the explosion venting port 2, the outer side wall of the limiting groove 31 is located in the small hole of the explosion venting port 2, and the outer side wall of the explosion venting member 3 is tightly attached to the inner wall of the large hole of the explosion venting port 2.
The connection structure 4 will be described in detail based on the structures of the explosion venting port 2 and the explosion venting member 3 in the present embodiment.
Referring to fig. 5, one of the connection structures 4 is: the connecting structure 4 comprises at least two third connecting plates 43 which are uniformly distributed at the outer edge of the smaller end of the cross section area of the explosion venting member 3, and the third connecting plates 43 are tightly attached to the inner wall of the box body 1 after being bent.
In order to ensure that the connection structure 4 fails when the pressure in the tank 1 reaches a predetermined value, it is necessary to ensure that the third connection plate 43 deforms under the pressure when the pressure reaches a predetermined value, and is thus disengaged from the inner wall of the tank 1.
In order to ensure that the third connecting plate 43 is firmly attached to the inner wall of the box body 1, the third connecting plate 43 can be fixed to the inner wall of the box body 1 by bolting or welding. When bolting or welding is adopted, in order to realize the explosion venting function, referring to fig. 7, a fracture guide line may be provided on the bending surface of the third connecting plate 43 (the fracture guide line may be provided on one side or may be provided on both sides at the same time), and a through groove may be further provided at the fracture guide line.
Referring to fig. 6, one of the connection structures 4 is: adopt at least two evenly distributed to let out the fourth connecting plate 44 of exploding piece 3 lateral wall, fourth connecting plate 44 is perpendicular with the lateral wall who lets out exploding piece 3, and fourth connecting plate 44 is located and lets out the great one side of exploding piece 3 cross-sectional area, box 1 outer wall is equipped with a plurality of second mounting grooves 7 that correspond with fourth connecting plate 44 one by one, second mounting groove 7 stretches into let out explosion port 2 in, and fourth connecting plate 44 card is gone into corresponding second mounting groove 7, fourth connecting plate 44 and second mounting groove 7 bolt or welding.
In order to ensure that the connecting structure 4 can fail when the pressure in the box body 1 reaches a preset value, when bolting is adopted, a explosion venting bolt can be adopted, and when the pressure in the box body 1 reaches the preset value, the bolt fails, and the explosion venting piece 3 and the fourth connecting plate 44 can be separated from the explosion venting port 2. With bolting, referring to fig. 7, a fracture guide line may be provided on the surface of the fourth connecting plate 44, and the fracture guide line may be provided on one side, or may be provided on both sides at the same time, or may further be provided with a through groove at the location where the fracture guide line is provided. Obviously, the second solution is also applicable to welding.
In this embodiment, the sealing member 5 (not shown) is a sealing ring or a sealing gasket, and the installation position of the sealing member is between the step surface of the explosion venting port 2 and the top surface of the limiting groove 31.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a let out and explode structure of battery pack case which characterized in that includes:
the box body (1), the box body (1) is of a hollow structure;
the explosion venting port (2) extends into the box body (1) along the outer side wall of the box body (1);
explosion venting parts (3) and connecting structures (4), the explosion venting parts (3) are fixed relative to the box body (1) through the connecting structures (4), the explosion venting parts (3) are used for plugging the explosion venting ports (2), and the connecting structures (4) fail after the pressure in the box body (1) reaches a set value.
2. Explosion venting structure according to claim 1, characterized in that the explosion venting member (3) is a GPS unit.
3. Explosion venting structure according to claim 1, characterized in that a sealing member (5) is arranged between the explosion venting member (3) and the explosion venting port (2).
4. A venting structure according to any one of claims 1-3, characterized in that the cross-sectional area of the venting port (2) increases gradually outwards along the interior of the box body (1), the cross-sectional area of the venting member (3) increases gradually outwards along the interior of the box body (1), and the taper of the venting port (2) is consistent with that of the venting member (3).
5. The explosion venting structure according to claim 4, wherein the connecting structure (4) comprises at least two first connecting plates (41) which are uniformly distributed at the outer edge of the smaller end of the cross-sectional area of the explosion venting member (3), and the first connecting plates (41) are tightly attached to the inner wall of the box body (1) after being bent.
6. The explosion venting structure according to claim 4, wherein the connecting structure (4) comprises at least two second connecting plates (42) which are uniformly distributed on the outer side wall of the explosion venting piece (3), the second connecting plates (42) are located on one side with larger cross-sectional area of the explosion venting piece (3), a plurality of first mounting grooves (6) which are in one-to-one correspondence with the second connecting plates (42) are formed in the outer wall of the box body (1), the first mounting grooves (6) extend into the explosion venting opening (2), the second connecting plates (42) are clamped into the corresponding first mounting grooves (6), and the second connecting plates (42) are bolted or welded with the first mounting grooves (6).
7. The explosion venting structure according to any one of claims 1-3, wherein the explosion venting opening (2) is a step hole, a limit groove (31) is formed in the outer peripheral wall of one end of the explosion venting member (3) inserted into the explosion venting opening (2), the outer side wall of the limit groove (31) is located in a small hole of the explosion venting opening (2), and the outer side wall of the explosion venting member (3) is tightly attached to the inner wall of the large hole of the explosion venting opening (2).
8. The explosion venting structure according to claim 7, wherein the connecting structure (4) comprises at least two third connecting plates (43) which are uniformly distributed at the outer edge of the smaller end of the cross-sectional area of the explosion venting member (3), and the third connecting plates (43) are tightly adhered to the inner wall of the box body (1) after being bent.
9. The explosion venting structure according to claim 7, wherein the connecting structure (4) comprises at least two fourth connecting plates (44) uniformly distributed on the outer side wall of the explosion venting member (3), the fourth connecting plates (44) are perpendicular to the outer side wall of the explosion venting member (3), the fourth connecting plates (44) are located on one side with larger cross-sectional area of the explosion venting member (3), a plurality of second mounting grooves (7) which are in one-to-one correspondence with the fourth connecting plates (44) are arranged on the outer wall of the box body (1), the second mounting grooves (7) extend into the explosion venting openings (2), the fourth connecting plates (44) are clamped into the corresponding second mounting grooves (7), and the fourth connecting plates (44) are bolted or welded with the second mounting grooves (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321693490.9U CN220065990U (en) | 2023-06-30 | 2023-06-30 | Explosion venting structure of battery pack box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321693490.9U CN220065990U (en) | 2023-06-30 | 2023-06-30 | Explosion venting structure of battery pack box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220065990U true CN220065990U (en) | 2023-11-21 |
Family
ID=88767164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321693490.9U Active CN220065990U (en) | 2023-06-30 | 2023-06-30 | Explosion venting structure of battery pack box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220065990U (en) |
-
2023
- 2023-06-30 CN CN202321693490.9U patent/CN220065990U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102468463B (en) | Battery module | |
| EP3525263B1 (en) | One-way valve, top cover component, box and battery module | |
| CN210403875U (en) | Battery module, power battery package and vehicle | |
| CN211907477U (en) | Battery and battery module | |
| CN216872224U (en) | Automatic drain valve, battery and electric device | |
| EP3812632B1 (en) | Explosion-proof valve, battery pack and electric vehicle | |
| CN214848811U (en) | Battery cover plate assembly and battery | |
| CN113270684B (en) | Battery module and new forms of energy car | |
| CN216488385U (en) | Directional exhaust apparatus, battery and prefabricated storehouse of energy storage | |
| CN202019008U (en) | Explosion-proof cover plate of lithium battery | |
| CN220065990U (en) | Explosion venting structure of battery pack box | |
| CN102598356A (en) | Secondary battery | |
| CN210136896U (en) | Top cover explosion-proof structure and battery comprising same | |
| CN117638389A (en) | Battery monomer, battery and power consumption device | |
| KR101993145B1 (en) | Battery case of electric vehicle | |
| CN217405562U (en) | Battery upper cover and battery | |
| CN108713263B (en) | Battery pack including tray stopper for preventing battery pack cover from rebounding | |
| KR20010061303A (en) | Li-ION BATTERY USING SIMPLIFIED SAFETY VENT | |
| EP1150365A3 (en) | Battery assembly | |
| CN220474796U (en) | Explosion-proof waterproof lithium cell case of high security | |
| CN216648463U (en) | Soft package VDA module end plate | |
| CN210897362U (en) | Battery support and battery module with same | |
| CN218070103U (en) | Battery module and electric equipment | |
| CN220209208U (en) | Explosion-proof top cap structure of integrated into one piece's lithium ion battery | |
| CN218939860U (en) | Battery and electricity utilization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |