CN219915187U - Auxiliary jig for mechanical testing of lithium battery cover plate pole column - Google Patents
Auxiliary jig for mechanical testing of lithium battery cover plate pole column Download PDFInfo
- Publication number
- CN219915187U CN219915187U CN202321269072.7U CN202321269072U CN219915187U CN 219915187 U CN219915187 U CN 219915187U CN 202321269072 U CN202321269072 U CN 202321269072U CN 219915187 U CN219915187 U CN 219915187U
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- cover plate
- lithium battery
- counter bore
- holding part
- battery cover
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides an auxiliary jig for mechanical testing of a lithium battery cover plate pole column. The auxiliary jig for the mechanical test of the lithium battery cover plate pole column comprises a lower die, an upper die, a movable holding piece and a locking piece, wherein the lower die is provided with a counter bore, and the outer bottom wall of the counter bore is connected with the pole column; the upper die is detachably connected with the lower die, and a first holding part and a second holding part are respectively arranged on the peripheral wall of the upper die; the upper die is provided with a through hole which is communicated with the counter bore, and is also provided with a locking hole which is communicated with the through hole; the movable holding piece comprises a third holding part and a limiting part which are connected with each other, and the third holding part penetrates through the through hole limiting part to limit the movement in the counter bore; the locking piece is in threaded connection with the inner wall of the locking hole and is abutted with the third holding part. The utility model does not need to damage the polar column when in mechanical test, can better explain the mechanical risk after the polar column is connected with the module, lightens the work load of an operator and avoids the problem of work fatigue of the operator.
Description
Technical Field
The utility model relates to the technical field of battery testing, in particular to an auxiliary jig for mechanical testing of a lithium battery cover plate pole.
Background
Nowadays, with the great development of lithium battery technology, lithium batteries are widely used in the fields of transportation, national defense, science and technology and the like. The cover plate provides a closed space for the lithium battery and is also used as a medium for energy transmission of the lithium battery, the structure of the cover plate directly influences the use reliability of the lithium battery, and the pole is the most main stress part of the cover plate, so that the strength of the pole of the cover plate needs to be mechanically tested.
Currently, the performance test of thrust and torsion is generally performed on a pole in the market, and a torque wrench is generally adopted, so that the pole is destroyed, corresponding screw holes are processed on the surface of the pole, and then the corresponding screw holes are matched with a torsion meter for manual test.
The above-described pole mechanical test method is easy to operate, but also has the following problems:
when the pole is connected with the module, the pole can be subjected to torsion and thrust in the module, and as the pole is damaged, the accuracy of evaluation is difficult to ensure when a torque wrench is used for mechanical test, so that the mechanical risk after the pole is connected with the module cannot be interpreted; for a plurality of batteries, the operation of breaking the pole needs to be repeated, so that the workload of an operator is increased, and the operator is easy to work fatigue.
Disclosure of Invention
The auxiliary jig for the mechanical testing of the lithium battery cover plate pole column is capable of better explaining the mechanical risk after the pole column is connected with the module without damaging the pole column during mechanical testing, reducing the workload of an operator and avoiding the problem of working fatigue of the operator.
The aim of the utility model is realized by the following technical scheme:
the auxiliary jig for the mechanical test of the lithium battery cover plate pole comprises a lower die, an upper die, a movable holding piece and a locking piece, wherein a counter bore is formed in the lower die, and the outer bottom wall of the counter bore is connected with the pole; the upper die is positioned at one side of the lower die, which is away from the pole, and is detachably connected with the lower die, a first holding part and a second holding part are respectively arranged on the peripheral wall of the upper die, and the first holding part and the second holding part are mutually perpendicular; the upper die is provided with a through hole, the through hole is communicated with the counter bore, the upper die is also provided with a locking hole, and the locking hole is communicated with the through hole; the movable holding piece comprises a third holding part and a limiting part which are connected with each other, the third holding part penetrates through the through hole, the third holding part is perpendicular to the first holding part and the second holding part respectively, and the limiting part limits movement in the counter bore; the locking piece is in threaded connection with the inner wall of the locking hole and is in butt joint with the third holding part.
In one embodiment, the limiting portion is movably abutted against the inner bottom wall of the counter bore, and the outer bottom wall of the counter bore is welded to the pole.
In one embodiment, the distance between the outer bottom wall of the counterbore and the inner bottom wall of the counterbore is 1mm.
In one embodiment, the upper die is formed with a plurality of through holes, the lower die is formed with a plurality of screw holes, the screw holes correspond to the through holes one by one, the auxiliary jig for mechanical testing of the lithium battery cover plate pole further comprises a plurality of fixing screws, and each fixing screw penetrates through one through hole and is connected to the inner wall of the corresponding screw hole.
In one embodiment, the lower die is cylindrical, and four rectangular straight edge positioning parts are uniformly arranged on the peripheral wall of the lower die.
In one embodiment, the upper die is cylindrical and the diameter of the upper die is equal to the diameter of the lower die.
In one embodiment, the first holding portion, the second holding portion and the upper die are integrally formed.
In one embodiment, the third holding portion and the limiting portion are integrally formed.
In one embodiment, the limiting portion is cylindrical, the counter bore is cylindrical, and the aperture of the counter bore is larger than the diameter of the limiting portion.
In one embodiment, the diameter of the limiting portion is larger than the aperture of the through hole.
Compared with the prior art, the utility model has the following advantages:
1. the mechanical risk after the connection of the pole and the module can be well explained without damaging the pole when the mechanical test is carried out, and the accuracy of retesting the pole in performances such as air tightness, resistance and the like after the mechanical test is higher;
2. by reducing the operation of damaging the pole, the work load of an operator is reduced, and the problem of work fatigue of the operator is avoided;
3. because the upper die and the lower die are detachably connected, when only the pole is required to be subjected to thrust test, the lower die is not required to be installed, the limiting part is abutted against the inner bottom wall of the counter bore, and then the thrust meter is connected with the third holding part, so that the thrust test of the pole can be completed, the workload of an operator is reduced, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a connection structure between an auxiliary fixture for mechanical testing of a lithium battery cover plate pole and a battery cover plate in an embodiment;
FIG. 2 is an exploded view of an auxiliary fixture for mechanical testing of a lithium battery cover plate pole in an embodiment;
FIG. 3 is another schematic diagram of a connection structure between the auxiliary fixture for mechanical testing of the lithium battery cover plate pole and the battery cover plate shown in FIG. 1;
fig. 4 is a cross-sectional view of a connection structure of the auxiliary jig for mechanical testing of the lithium battery cover plate pole shown in fig. 3 and a battery cover plate along A-A line.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model provides an auxiliary jig for mechanical testing of a lithium battery cover plate pole, which comprises a lower die, an upper die, a movable holding piece and a locking piece, wherein a counter bore is formed in the lower die, and the outer bottom wall of the counter bore is connected with the pole; the upper die is positioned at one side of the lower die, which is away from the pole, and is detachably connected with the lower die, a first holding part and a second holding part are respectively arranged on the peripheral wall of the upper die, and the first holding part and the second holding part are mutually perpendicular; the upper die is provided with a through hole, the through hole is communicated with the counter bore, the upper die is also provided with a locking hole, and the locking hole is communicated with the through hole; the movable holding piece comprises a third holding part and a limiting part which are connected with each other, the third holding part penetrates through the through hole, the third holding part is perpendicular to the first holding part and the second holding part respectively, and the limiting part limits movement in the counter bore; the locking piece is in threaded connection with the inner wall of the locking hole and is in butt joint with the third holding part.
In order to better understand the technical scheme and beneficial effects of the present utility model, the following describes the present utility model in further detail with reference to specific embodiments:
referring to fig. 1 to 4, an auxiliary fixture 10 for mechanical testing of a lithium battery cover plate pole according to an embodiment of the utility model includes a lower mold 100, an upper mold 200, a movable grip 300 and a locking member 400, wherein the lower mold 100 is formed with a counterbore 101, and an outer bottom wall of the counterbore 101 is connected to a pole 20; the upper die 200 is located at a side of the lower die 100 away from the pole 20, the upper die 200 is detachably connected with the lower die 100, a first holding portion 210 and a second holding portion 220 are respectively provided on an outer peripheral wall of the upper die 200, and the first holding portion 210 and the second holding portion 220 are mutually perpendicular; the upper die 200 is formed with a through hole 201, the through hole 201 is communicated with the counter bore 101, the upper die 200 is also formed with a locking hole 202, and the locking hole 202 is communicated with the through hole 201; the movable holding piece 300 includes a third holding portion 310 and a limiting portion 320 that are connected to each other, the third holding portion 310 is disposed through the through hole 201, the third holding portion 310 is perpendicular to the first holding portion 210 and the second holding portion 220, respectively, and the limiting portion 320 limits movement in the counter bore 101; the locking member 400 is screwed to the inner wall of the locking hole 202 and abuts against the third holding portion 310.
In this embodiment, the lower die 100 is formed with a counter bore 101, the outer bottom wall of the counter bore 101 is connected with the pole 20, the limiting portion 320 of the movable holding member 300 is placed in the counter bore 101, and since the upper die 200 is formed with a through hole 201, the third holding portion 310 of the movable holding member 300 is inserted into the through hole 201, so that the other side of the lower die 100 is abutted against the upper die 200, and then the upper die 200 is connected with the lower die 100, and at this time, the through hole 201 is communicated with the counter bore 101; by moving the third holding part 310, the limiting part 320 is abutted against the inner bottom wall of the counter bore 101, the upper die 200 is further formed with a locking hole 202, the locking hole 202 is communicated with the through hole 201, and the locking piece 400 is penetrated and connected to the inner wall of the locking hole 202 and abutted against the third holding part 310 so as to lock and fix the third holding part 310, so that the limiting part 320 is kept in an abutted state with the inner bottom wall of the counter bore 101; it can be understood that, since the outer bottom wall of the counter bore 101 is connected with the pole 20, and the inner bottom wall of the counter bore 101 is abutted with the limiting portion 320, the limiting portion 320 is connected with the third holding portion 310, so that the thrust gauge is connected with the third holding portion 310 to perform the thrust test of the pole 20, the upper and lower dies 100 and 200 are connected, the limiting portion 320 is in limiting abutment with the inner bottom wall of the counter bore 101, the third holding portion 310 is limited in the through hole 201 of the upper die 200, and the torsion gauge is connected with the third holding portion 310 to perform the torsion test of the pole 20; similarly, the lower die 100 is respectively connected with the upper die 200 and the pole 20, the outer peripheral wall of the upper die 200 is respectively provided with a first holding part 210 and a second holding part 220 which are mutually perpendicular, and the thrust and torsion tests of the pole 20 can be completed through the first holding part 210 and the second holding part 220, and the third holding part 310 is respectively perpendicular to the first holding part 210 and the second holding part 220, so that the mechanical test of the pole 20 in the X, Y, Z three perpendicular directions can be realized.
In the implementation, the mechanical risk after the connection of the pole 20 and the module can be well explained without damaging the pole 20 when the mechanical test is performed, and the accuracy of the performance of the retest pole 20 in the air tightness, the resistance and the like after the mechanical test is higher; by reducing the operation of damaging the pole 20, the workload of the operator is reduced, and the problem of work fatigue of the operator is avoided; because the upper die 200 is detachably connected with the lower die 100, when only the pole 20 is required to be tested for thrust, the lower die 100 is not required to be installed, the limiting part 320 is abutted against the inner bottom wall of the counter bore 101, and then the thrust meter is connected with the third holding part 310, so that the thrust test of the pole 20 can be completed, the workload of an operator is reduced, and the working efficiency is improved.
In one embodiment, referring to fig. 4, the limiting portion 320 is movably abutted against the inner bottom wall of the counterbore 101, and the outer bottom wall of the counterbore 101 is welded to the pole 20. In this embodiment, the outer bottom wall of the counterbore 101 is securely connected to the post 20 by welding.
Further, the distance between the outer bottom wall of the counterbore 101 and the inner bottom wall of the counterbore 101 is 1mm. In this way, the thickness between the inner bottom wall of the counter bore 101 and the outer bottom wall thereof is thinner, so that the welding between the outer bottom wall of the counter bore 101 and the pole 20 is ensured to be firmer.
In one embodiment, referring to fig. 2, the upper die 200 is formed with a plurality of through holes 203, the lower die 100 is formed with a plurality of screw holes 102, the screw holes 102 are in one-to-one correspondence with the plurality of through holes 203, the auxiliary fixture 10 for testing the pole mechanics of the lithium battery cover plate further comprises a plurality of fixing screws 500, and each fixing screw 500 is inserted through one of the through holes 203 and connected to the inner wall of the corresponding screw hole 102. In this embodiment, each fixing screw 500 is inserted through a through hole 203 and connected to the inner wall of the corresponding screw hole 102, so that the upper die 200 is firmly connected to the lower die 100, and it is understood that when the upper die 200 is detached from the lower die 100, only the fixing screws 500 need to be disconnected from the inner wall of the corresponding screw hole 102.
In one embodiment, referring to fig. 1 and 2, the lower die 100 is cylindrical, and four rectangular straight edge positioning portions 110 are uniformly disposed on the outer peripheral wall of the lower die 100. In the present embodiment, since the lower die 100 is cylindrical, the four straight edge positioning portions 110 are uniformly distributed on the outer peripheral wall of the lower die 100, and therefore, two connecting lines between two adjacent straight edge positioning portions 110 and the center of the lower die 100 are perpendicular to each other; when the upper die 200 is connected with the lower die 100, since the outer peripheral wall of the upper die 200 is respectively provided with the first holding portion 210 and the second holding portion 220 which are perpendicular to each other, the first holding portion 210 and the second holding portion 220 are positioned by any two adjacent straight edge positioning portions 110, that is, the first holding portion 210 and the second holding portion 220 are respectively positioned right above the two adjacent straight edge positioning portions 110, and when the mechanical test is performed, the positions of the first holding portion 210 and the second holding portion 220 can be known by referring to the corresponding straight edge positioning portions 110 when the positions of the first holding portion 210 and the second holding portion 220 are deviated.
In one embodiment, referring to fig. 1, the upper die 200 has a cylindrical shape, and the diameter of the upper die 200 is equal to the diameter of the lower die 100. Thus, the upper die 200 is adapted to the lower die 100, and the appearance of the upper die and the lower die after being connected is beautiful.
In one embodiment, referring to fig. 2, the first holding portion 210, the second holding portion 220 and the upper die 200 are integrally formed. In this way, the connection strength between the first and second holding portions 210 and 220 and the upper die 200 is high, and damage is not easy to occur.
In one embodiment, referring to fig. 2, the third holding portion 310 and the limiting portion 320 are integrally formed. It can be appreciated that the third holding portion 310 and the limiting portion 320 are integrally formed, so as to improve the structural strength of the movable holding member 300.
In one embodiment, referring to fig. 2 and 4, the limiting portion 320 is cylindrical, the counterbore 101 is cylindrical, and the bore diameter of the counterbore 101 is larger than the diameter of the limiting portion 320. So that the limiting portion 320 can be well adapted to be accommodated in the counterbore 101.
Further, the diameter of the limiting portion 320 is larger than the aperture of the through hole 201. Thus, when the upper die 200 is connected with the lower die 100, the aperture of the through hole 201 is smaller than the diameter of the limiting portion 320, so that the limiting portion 320 is limited to move in the counter bore 101.
Compared with the prior art, the utility model has the following advantages:
1. the mechanical risk after the connection of the pole and the module can be well explained without damaging the pole when the mechanical test is carried out, and the accuracy of retesting the pole in performances such as air tightness, resistance and the like after the mechanical test is higher;
2. by reducing the operation of damaging the pole, the work load of an operator is reduced, and the problem of work fatigue of the operator is avoided;
3. because the upper die and the lower die are detachably connected, when only the pole is required to be subjected to thrust test, the lower die is not required to be installed, the limiting part is abutted against the inner bottom wall of the counter bore, and then the thrust meter is connected with the third holding part, so that the thrust test of the pole can be completed, the workload of an operator is reduced, and the working efficiency is improved.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. Auxiliary jig for mechanical testing of lithium battery cover plate pole, which is characterized by comprising:
the lower die is provided with a counter bore, and the outer bottom wall of the counter bore is connected with the pole;
the upper die is positioned at one side of the lower die, which is away from the pole, and is detachably connected with the lower die, a first holding part and a second holding part are respectively arranged on the peripheral wall of the upper die, and the first holding part and the second holding part are mutually perpendicular; the upper die is provided with a through hole, the through hole is communicated with the counter bore, the upper die is also provided with a locking hole, and the locking hole is communicated with the through hole;
the movable holding piece comprises a third holding part and a limiting part which are connected with each other, the third holding part is arranged through the through hole in a penetrating mode, the third holding part is perpendicular to the first holding part and the second holding part respectively, and the limiting part limits movement in the counter bore;
the locking piece is in threaded connection with the inner wall of the locking hole and is in butt joint with the third holding part.
2. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 1, wherein the limiting portion is movably abutted against an inner bottom wall of the counter bore, and an outer bottom wall of the counter bore is welded to the pole.
3. The auxiliary jig for mechanical testing of lithium battery cover plate poles according to claim 2, wherein a distance between an outer bottom wall of the counter bore and an inner bottom wall of the counter bore is 1mm.
4. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 1, wherein the upper die is formed with a plurality of through holes, the lower die is formed with a plurality of screw holes, the screw holes are in one-to-one correspondence with the through holes, the auxiliary jig for mechanical testing of a lithium battery cover plate pole further comprises a plurality of fixing screws, and each fixing screw penetrates through one through hole and is connected to the inner wall of the corresponding screw hole.
5. The auxiliary jig for mechanical testing of lithium battery cover plate poles according to claim 1, wherein the lower die is cylindrical, and four rectangular straight edge positioning parts are uniformly arranged on the peripheral wall of the lower die.
6. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 5, wherein the upper die is cylindrical, and the diameter of the upper die is equal to the diameter of the lower die.
7. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 1, wherein the first holding portion, the second holding portion and the upper die are of an integrally formed structure.
8. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 1, wherein the third holding portion and the limiting portion are integrally formed.
9. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 1, wherein the limiting portion is cylindrical, the counter bore is cylindrical, and the aperture of the counter bore is larger than the diameter of the limiting portion.
10. The auxiliary jig for mechanical testing of a lithium battery cover plate pole according to claim 9, wherein the diameter of the limiting portion is larger than the aperture of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321269072.7U CN219915187U (en) | 2023-05-23 | 2023-05-23 | Auxiliary jig for mechanical testing of lithium battery cover plate pole column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321269072.7U CN219915187U (en) | 2023-05-23 | 2023-05-23 | Auxiliary jig for mechanical testing of lithium battery cover plate pole column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915187U true CN219915187U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321269072.7U Active CN219915187U (en) | 2023-05-23 | 2023-05-23 | Auxiliary jig for mechanical testing of lithium battery cover plate pole column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915187U (en) |
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2023
- 2023-05-23 CN CN202321269072.7U patent/CN219915187U/en active Active
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