CN210290412U - Be applied to step bolt locking structure of battery package sealed department - Google Patents
Be applied to step bolt locking structure of battery package sealed department Download PDFInfo
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- CN210290412U CN210290412U CN201920942725.0U CN201920942725U CN210290412U CN 210290412 U CN210290412 U CN 210290412U CN 201920942725 U CN201920942725 U CN 201920942725U CN 210290412 U CN210290412 U CN 210290412U
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- nut
- battery pack
- locking structure
- sealing
- bolt locking
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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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Abstract
The utility model discloses a be applied to step bolt locking structure of sealed department of battery package, step bolt locking structure includes: the nut is arranged in a sealing locking hole of a box body of the battery pack; the sealing gasket is arranged between the box body and the box cover of the battery pack and is penetrated by a nut; the step bolt penetrates through the box cover and is connected with the nut in a matched mode, the step bolt comprises a step and a threaded connecting end, the threaded connecting end is in threaded connection with the nut, the lower surface of the step is in contact with the top end of the nut, and the diameter of the step is not smaller than that of the top end of the nut. The utility model discloses simple structure, simple to operate has improved the gas tightness greatly.
Description
Technical Field
The utility model relates to a locking structure, concretely relates to be applied to step bolt locking structure of sealed department of battery package.
Background
In new forms of energy battery package field, need carry out sealing connection through bolt locking structure between the box of battery package and the case lid, and set up the nut in the sealed locking hole of box, be connected through passing case lid and nut with the bolt to realize the sealing connection of box and case lid, but this bolt locking structure's gas tightness is very poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem to a be applied to step bolt locking structure of sealed department of battery package is provided.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a step bolt locking structure applied to a battery pack sealing part, the step bolt locking structure comprising:
the nut is arranged in a sealing locking hole of the box body of the battery pack;
the sealing gasket is arranged between the box body and the box cover of the battery pack and is penetrated by the nut;
the step bolt penetrates through the box cover and is connected with the nut in a matched mode, the step bolt comprises a step and a threaded connecting end, the threaded connecting end is connected with the nut in a threaded mode, the lower surface of the step is in contact with the top end of the nut, and the diameter of the step is not smaller than that of the top end of the nut.
In a preferred embodiment of the invention, the nut is a blind rivet nut.
In a preferred embodiment of the present invention, the upper surface of the step is provided with a flange surface.
In a preferred embodiment of the present invention, the top end of the flange face is provided with a bolt head, the diameter of the bolt head is not smaller than the diameter of the step, and the diameter of the flange face is larger than the diameter of the bolt head or the diameter of the step.
In a preferred embodiment of the present invention, the nut includes a nut body and a protruding ring, the protruding ring is disposed on the top end of the nut body and passes through the sealing pad, and the diameter of the protruding ring is greater than the aperture of the sealing and locking hole.
In a preferred embodiment of the present invention, the nut body and the projecting ring are integrally formed.
In a preferred embodiment of the invention, the upper surface of the projecting ring is flush with the upper surface of the sealing gasket and the lower surface of the projecting ring is flush with the lower surface of said sealing gasket.
In a preferred embodiment of the present invention, a part of the nut body protrudes from the box body.
In a preferred embodiment of the present invention, the lower surface of the step is in contact with the upper surface of the projecting ring.
In the utility model discloses a preferred embodiment, the lower surface of step is equipped with a plurality of latches, and the upper surface of bulge loop is equipped with a plurality of draw-in grooves, and a plurality of latches and draw-in groove match and are used for spacingly.
The utility model has the advantages that:
the utility model discloses simple structure, simple to operate has improved the gas tightness greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the installation of the present invention;
fig. 2 is a schematic structural view of a stepped bolt.
Reference numerals: the structure comprises a nut 100, a convex ring 110, a sealing gasket 200, a step bolt 300, a step 310, a threaded connection end 320, a flange surface 330, a bolt head 340, a box body 400 and a box cover 500.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 and 2, the present invention provides a stepped bolt locking structure applied to a battery pack sealing position, which includes a nut 100, a gasket 200 and a stepped bolt 300.
The nut 100, which is embodied as a blind rivet nut, is directly mounted in a sealing locking hole of the case 400 of the battery pack.
The nut 100 specifically includes a nut body and a protruding ring 110, the protruding ring 110 is disposed at the top end of the nut body and penetrates through the sealing gasket 200, and the diameter of the protruding ring 110 is larger than the aperture of the sealing locking hole.
The projecting ring 110 is formed integrally with the nut body, which greatly improves strength and rigidity.
In addition, the upper surface of the projecting ring 110 is flush with the upper surface of the gasket 200, and the lower surface of the projecting ring 110 is flush with the lower surface of the gasket 200.
Furthermore, part of the nut body protrudes out of the box body.
The lower surface of the step is in contact with the upper surface of the projecting ring
The gasket 200 is disposed between the case 400 and the cover 500 of the battery pack and penetrated by the nut 100 for improving sealability between the cover 500 and the case 400.
And a step bolt 300 which is fittingly coupled with the nut 100 in the case 400 through the cover 500 to fix the cover 500 to the case 400.
However, when the stepped bolt 300 is coupled to the nut 100, the gasket 200 is located between the cover 500 and the case 400, and thus the stepped bolt is flexibly coupled to the case, and the flexible coupling is liable to cause the attenuation of the torsion, thereby affecting the airtightness.
The present application provides a stepped bolt 300 including a step 310 and a threaded end 320.
The screw connection end 320 is in threaded connection with the nut 100, a flange surface 330 is arranged on the upper surface of the step 310, a bolt head 340 is arranged at the top end of the flange surface 330, and the flange surface 330 is in contact with the upper surface of the case cover 500.
The diameter of the bolt head 340 is not smaller than the diameter of the step 310, and the diameter of the flange face 330 is larger than the diameter of the bolt head 340 or the diameter of the step 310.
The step 310 is located in the cover 500, the lower surface of the step 310 is in direct contact with the upper surface of the projecting ring 110, and the diameter of the step 310 is not smaller than the diameter on the projecting ring 110.
The lower surface of the step is flush with the lower surface of the box cover,
thus, when the stepped bolt 300 is coupled to the nut 100, the coupling portion between the stepped bolt 300 and the nut 100 is the lower surface of the step 310 and the upper surface of the protrusion ring 110, which is a rigid coupling, so that the phenomenon of torsion attenuation when the stepped bolt 300 is fastened can be avoided, and the torsion attenuation is not caused because the dimensional change of the case cover 500 is not related to the rigid coupling. The structure can fundamentally solve the problem of poor sealing of the battery pack caused by the attenuation of the torsion.
In addition, a plurality of latches may be provided on the lower surface of the step 310, and a plurality of notches may be provided on the upper surface of the protruding ring 110, and each latch may be inserted into one notch, so that, when the step bolt 300 is fastened, the latch may be inserted into the notch after the lower surface of the step 310 contacts the upper surface of the protruding ring 110, to limit the step bolt 300, and prevent the step bolt 300 from continuing to rotate, thereby crushing the case cover 500. Plural as used herein means greater than two.
Because this structure is with bolt and rivet nut surface direct lock joint, avoided the structural design of flexible coupling, also avoided the poor problem of gas tightness that the flexible coupling caused because time, environmental factor. The air tightness is greatly ensured.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A step bolt locking structure applied to a battery pack sealing part is characterized by comprising:
the nut is arranged in a sealing locking hole of a box body of the battery pack;
the sealing gasket is arranged between the box body and the box cover of the battery pack and is penetrated by a nut;
the step bolt penetrates through the box cover and is connected with the nut in a matched mode, the step bolt comprises a step and a threaded connecting end, the threaded connecting end is connected with the nut in a threaded mode, the lower surface of the step is in contact with the top end of the nut, and the diameter of the step is not smaller than that of the top end of the nut.
2. The stepped bolt locking structure applied to the sealing part of the battery pack as claimed in claim 1, wherein the nut is a rivet nut.
3. The stepped bolt locking structure applied to the sealing part of the battery pack as claimed in claim 1, wherein the upper surface of the step is provided with a flange surface.
4. The stepped bolt locking structure applied to the battery pack sealing part according to claim 3, wherein a bolt head is arranged at the top end of the flange face, the diameter of the bolt head is not smaller than that of the step, and the diameter of the flange face is larger than that of the bolt head or that of the step.
5. The stepped bolt locking structure applied to the sealing of the battery pack as claimed in claim 1, wherein the nut includes a nut body and a protruding ring, the protruding ring is disposed at the top end of the nut body and penetrates through the sealing gasket, and the diameter of the protruding ring is larger than the diameter of the sealing locking hole.
6. The stepped bolt locking structure applied to the sealing part of the battery pack as claimed in claim 5, wherein the nut body and the protruding ring are integrally formed.
7. The stepped bolt locking structure applied to the sealing of a battery pack as claimed in claim 6, wherein the upper surface of the protruding ring is flush with the upper surface of the sealing gasket, and the lower surface of the protruding ring is flush with the lower surface of the sealing gasket.
8. The stepped bolt locking structure applied to the sealing part of the battery pack as claimed in claim 5, wherein a portion of the nut body protrudes from the case.
9. The stepped bolt locking structure applied to the sealing of a battery pack as claimed in claim 5, wherein the lower surface of the step is in contact with the upper surface of the protruding ring.
10. The stepped bolt locking structure applied to the sealing part of the battery pack as claimed in claim 9, wherein a plurality of latch teeth are arranged on the lower surface of the step, a plurality of slot grooves are arranged on the upper surface of the protruding ring, and a plurality of latch teeth and slot grooves are matched for limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942725.0U CN210290412U (en) | 2019-06-21 | 2019-06-21 | Be applied to step bolt locking structure of battery package sealed department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942725.0U CN210290412U (en) | 2019-06-21 | 2019-06-21 | Be applied to step bolt locking structure of battery package sealed department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290412U true CN210290412U (en) | 2020-04-10 |
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ID=70098012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920942725.0U Active CN210290412U (en) | 2019-06-21 | 2019-06-21 | Be applied to step bolt locking structure of battery package sealed department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290412U (en) |
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2019
- 2019-06-21 CN CN201920942725.0U patent/CN210290412U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210330 Address after: Room 201, building a, Xingli Zundian furniture factory, No.1 shouhe Road, Jinsha community, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Evergrande new energy technology (Shenzhen) Co.,Ltd. Patentee after: SHANGHAI CENAT NEW ENERGY Co.,Ltd. Patentee after: NANCHANG CENAT NEW ENERGY Co.,Ltd. Patentee after: GUANGXI CENAT NEW ENERGY Co.,Ltd. Patentee after: JIANGSU CENAT NEW ENERGY Co.,Ltd. Address before: 518052 Room 201, building a, No.1 Qianhai 1st Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen City, Guangdong Province Patentee before: Hengda New Energy Technology Group Co.,Ltd. Patentee before: SHANGHAI CENAT NEW ENERGY Co.,Ltd. Patentee before: NANCHANG CENAT NEW ENERGY Co.,Ltd. Patentee before: GUANGXI CENAT NEW ENERGY Co.,Ltd. Patentee before: JIANGSU CENAT NEW ENERGY Co.,Ltd. |