CN220583688U - Cylindrical battery roller groove hemming structure sealing test tool - Google Patents
Cylindrical battery roller groove hemming structure sealing test tool Download PDFInfo
- Publication number
- CN220583688U CN220583688U CN202322242761.5U CN202322242761U CN220583688U CN 220583688 U CN220583688 U CN 220583688U CN 202322242761 U CN202322242761 U CN 202322242761U CN 220583688 U CN220583688 U CN 220583688U
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- plate
- cylindrical battery
- battery
- sealing
- outer frame
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- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000009957 hemming Methods 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000010030 laminating 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
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a sealing test fixture for a cylindrical battery roller groove hemming structure, which comprises an upper pressing component, a lower pressing component, a front end sealing component and a rear end positioning component, wherein the upper pressing component and the lower pressing component are arranged in an outer frame; the front end sealing assembly comprises a sealing ring for installing the front end of the outer frame, wherein the front end of the outer frame is positioned at the inner side of the sealing ring and is also provided with an air injection assembly. This application compresses tightly the outside of cylinder battery through adopting seal structure all around, compresses tightly subassembly and front end seal assembly formation from top to bottom to and the battery positive pole annotates the fixed of liquid hole one side, solves the unable atress of battery negative pole roller groove turn-up bottom surface's condition, and rear end locating component can also carry out the position to the negative pole of battery and prescribe a limit to, this application utilizes the frictional force of battery face of cylinder and the anodal packing force of top surface, combines the packaging structure all around, can guarantee that big cylinder roller groove turn-up battery is stable to be beaten and test, the accuracy and the security that the gas tightness that improve greatly detect.
Description
Technical Field
The utility model relates to the technical field of battery testing, in particular to a sealing testing tool for a cylindrical battery roller groove hemming structure.
Background
In recent years, the development of new energy industry has entered the prime stage of high-speed development. On the one hand, the national policy promotes the result, and on the other hand, the new energy industry gradually steps into the mature mark. Lithium battery is the most common technology applied in new energy industry, and has the characteristics of high stability and high energy density. The main structural style of lithium cell is square and cylinder, and wherein the core is rolled up in the constraint that the structure of cylinder can be better, possesses better security. The roller groove hemming is a structure of a cylindrical battery seal, and has the characteristics of simple structure, low cost, excellent sealing performance and the like.
But the detection of the roll groove crimp tightness is often inaccurate. Because traditional detection frock compresses tightly through the both ends of cylinder battery and tests, can produce great pressure to roller groove turn-up bottom surface, and roller groove turn-up structure itself is sealed through compressing tightly the sealing washer, and its structure is once receiving external force, will influence the result that the gas tightness detected, often appears the condition of false detection.
The utility model provides a cylinder battery roller groove turn-up structure seals test fixture to solve above-mentioned problem based on this application.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: how to solve the problems of poor detection effect and false detection in the current roller groove hemming air tightness test.
In order to solve the technical problems, the utility model provides the following technical scheme:
a sealing test fixture for a cylindrical battery roller groove hemming structure comprises an upper pressing assembly, a lower pressing assembly, a front end sealing assembly and a rear end positioning assembly, wherein the upper pressing assembly and the lower pressing assembly are arranged in an outer frame; the front end sealing assembly comprises a sealing ring for installing the front end of the outer frame, wherein the front end of the outer frame is positioned at the inner side of the sealing ring and is also provided with an air injection assembly.
This application compresses tightly the outside of cylinder battery through adopting seal structure all around, compresses tightly subassembly and front end seal assembly formation from top to bottom to and the positive fixed of filling hole one side of battery, solves the unable atress of battery negative pole roller groove turn-up bottom surface, and the rear end locating component can also carry out the position to the negative pole of battery and prescribe a limit to, this application utilizes the frictional force of battery face of cylinder and the anodal packing force of top surface, combines the packaging structure all around, can guarantee that cylinder roller groove turn-up battery is stable and is beaten the test, the accuracy and the security that the gas tightness that improve greatly detect.
As a further scheme of the utility model: the upper pressing assembly and the lower pressing assembly comprise a connecting plate, an upper pressing plate, a lower pressing plate and a pressing driving piece, the upper pressing plate and the lower pressing plate are symmetrically arranged, the connecting plate is mounted at the top of the upper pressing plate, and the upper part of the connecting plate is connected with the pressing driving piece mounted on the outer frame.
As a further scheme of the utility model: the compressing driving piece is an upper compressing adjusting nut, wherein the top of the upper compressing adjusting nut is arranged on the outer frame, and the bottom of the upper compressing adjusting nut is arranged on the connecting plate.
As a further scheme of the utility model: the arc-shaped groove corresponding to the cylindrical battery is formed in one side, facing the lower pressing plate, of the upper pressing plate, and the arc-shaped groove corresponding to the cylindrical battery is formed in one side, facing the upper pressing plate, of the lower pressing plate.
As a further scheme of the utility model: the two sides of the upper compacting plate are connected with the lower compacting plate through springs.
As a further scheme of the utility model: the outer frame comprises a top plate, a bottom plate, a rear sealing plate, a front pressing plate and two side sealing plates, wherein the top of each side sealing plate is detachably arranged with the top plate, and the bottom of each side sealing plate is detachably arranged with the bottom plate; the rear ends of the two side sealing plates are detachably mounted with the rear sealing plate, and the front ends of the two side sealing plates are detachably mounted with the front pressing plate through adjustable lock catches.
As a further scheme of the utility model: the gas injection assembly comprises a gas inlet arranged on the front pressing plate.
As a further scheme of the utility model: the rear end locating component comprises a locating partition board, the locating partition board is inserted onto the bottom board from the top of the outer frame, and a clamping groove corresponding to the cylindrical battery is formed in the bottom of the locating partition board.
Compared with the prior art, the utility model has the beneficial effects that:
firstly, the periphery sealing structure is adopted, the upper and lower compressing assemblies and the front end sealing assembly form the outside compression of the cylindrical battery, the fixing of one side of the battery anode liquid injection hole is realized, the problem that the bottom surface of the battery anode roller groove curled edge cannot be stressed is solved, the rear end positioning assembly can also limit the position of the battery anode, the cylindrical surface friction force and the top surface anode compressing force of the battery are utilized, the periphery wrapping structure is combined, the cylindrical roller groove curled edge battery can be stably subjected to compression test, and the accuracy and the safety of the air tightness detection are greatly improved;
secondly, this application is through setting up the front bezel at the cylinder battery front end, and the inboard of front bezel sets up the sealing washer, through the battery annotates the liquid hole side of the pressure at cylinder battery front end that adjustable hasp with front bezel and sealing washer are tight, ensures the leakproofness when cylinder battery test, avoids influencing the test accuracy in roller groove.
Drawings
FIG. 1 is a schematic structural view of a cylindrical battery roll groove hemming structure seal test fixture according to an embodiment of the utility model;
FIG. 2 is an exploded view of FIG. 1 according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a portion of the structure of FIG. 1 according to an embodiment of the present utility model;
FIG. 4 is a front view of the embodiment of the present utility model shown in FIG. 3;
fig. 5 is a plan view of a cylindrical battery according to an embodiment of the present utility model;
FIG. 6 is a top view of FIG. 5 according to an embodiment of the present utility model;
reference numerals illustrate: 1. positioning a baffle; 2. a top plate; 3. a connecting plate; 4. an upper compacting plate; 5. a rear sealing plate; 6. a side sealing plate; 7. an adjustable lock catch; 8. a bottom plate; 9. a cylindrical battery; 10. a front platen; 11. an air inlet; 12. an upper compression adjusting nut; 13. a seal ring; 14. a battery roller groove structure; 15. a battery liquid injection hole; 16. and a lower pressing plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are 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.
Referring to fig. 1, a sealing test tool for a cylindrical battery roll groove hemming structure comprises an outer frame composed of a top plate 2, a bottom plate 8, a rear sealing plate 5, a front pressing plate 10 and two side sealing plates 6, wherein a cylindrical battery 9 is mounted in the outer frame, and the rear sealing plate 5 is a transparent plate, so that air bubble changes can be observed during subsequent testing.
Further, the top of the two side sealing plates 6 and the top plate 2 are detachably mounted through bolts or pin shafts, and the bottoms of the two side sealing plates 6 and the bottom plate 8 are detachably mounted through bolts or pin shafts; the rear ends of the two side sealing plates 6 are detachably mounted with the rear sealing plate 5 through bolts or pin shafts, the front ends of the two side sealing plates 6 are detachably mounted with the front pressing plate 10 through the adjustable lock catches 7, and when the cylindrical battery is used, the front pressing plate 10 is taken down through the adjustable lock catches 7 and then the cylindrical battery is mounted.
Referring to fig. 2, fig. 3 and fig. 4, a sealed test fixture of cylinder battery roller groove hemming structure, still including installing at the inside last pressure strip 4 of outer frame and pressure strip 16 down, go up pressure strip 4 and pressure strip 16 down adopts the resin material, wherein the cylinder battery is located between pressure strip 4 and the pressure strip 16 down, go up pressure strip 4 and pressure strip 16 symmetry setting down, and go up pressure strip 4 and offer the arc groove corresponding with the cylinder battery towards one side of pressure strip 16 down, down pressure strip 16 also offers the arc groove corresponding with the cylinder battery towards one side of pressure strip 4, then when using, cylinder battery 9 can just be located between two upper and lower arc grooves, and two upper and lower arc grooves just laminating cylinder battery 9's outer curved surface (as shown in fig. 3), two upper and lower pressure strips can ensure cylinder battery 9's stability to cylinder battery 9 radial direction's frictional force.
Further, referring to fig. 3 and 4, both sides of the upper compression plate 4 are connected with the lower compression plate 16 through springs, and the arrangement of the springs plays a role in buffering and shock resistance when fixing the cylindrical battery. It should be noted that the connecting plate 3 is installed at the top of going up the pressure strip 4, and the connecting plate 3 top is connected with last pressure adjusting nut 12 of installing on roof 2, and wherein the top of going up pressure adjusting nut 12 is installed at roof 2, and connecting plate 3 is installed to the bottom, can drive the connecting plate 3 through rotatory last pressure adjusting nut 12 and move down vertically, and then drives last pressure strip 4 and move down, makes it can realize radial spacing to cylindrical battery 9 with the cooperation of lower pressure strip 16.
Referring to fig. 2, a sealing ring 13 is disposed on the front pressing plate 10 facing the inner side of the cylindrical battery 9, the sealing ring 13 is a fluororubber sealing ring, an air inlet 11 is further formed on the front pressing plate 10 and located on the inner side of the sealing ring 13, air is injected from the air inlet 11 through an external air injection piece, then is injected into a battery liquid injection hole 15 on the cylindrical battery 9 from the air inlet 11, and then a sealing test can be performed on the cylindrical battery roller groove structure.
Referring to fig. 2 and 3, the top of the top plate 2 and one side located on the upper compression adjusting nut 12 are provided with a positioning baffle 1, the positioning baffle 1 can be inserted into the bottom plate 8 from the top plate 2, and it is noted that the positioning baffle 1 is provided with two, and is specifically required to be provided with several, according to the size of the cylindrical battery, if the cylindrical battery is small and mountable, two can be mounted on the contrary, the positioning baffle 1 is used for limiting the cylindrical battery 9, the bottom of the positioning baffle 1 is provided with a clamping groove corresponding to the cylindrical battery 9, and when limiting, only the positioning baffle 1 needs to be inserted, and then the clamping groove at the bottom of the positioning baffle 1 can be clamped on the outer curved surface of the cylindrical battery 9.
Referring to fig. 3, 4, 5 and 6, a battery liquid injection hole 15 is formed in the middle position of the positive electrode of the cylindrical battery 9, and a battery roller groove structure 14 is formed in the negative electrode.
The specific operating principle of the application is as follows: when the battery is used, the battery is placed on the lower pressing plate 6, then the positioning partition plate 1 is inserted from the top plate 2, and the clamping groove at the bottom of the positioning partition plate 1 is just clamped into the outer curved surface of the cylindrical battery 9, so that the cylindrical battery is positioned; after the positioning is finished, the upper compression adjusting nut 12 is rotated to drive the upper compression plate 4 to move, so that the upper compression plate 4 and the lower compression plate 16 realize tight compression on the cylindrical battery 9, and the periphery of the battery is fixed; then the front pressing plate 10 and the sealing ring 13 on the inner side of the front pressing plate are tightly pressed on the side of the battery liquid injection hole 15 through the adjustable lock catch 7;
after the cylinder battery 9 is fixed, insert the gas injection trachea at front clamp plate 10 center to take out behind the location baffle 1 (take out the baffle here and be used for being convenient for observe the bubble change of battery roller groove structure 14 department), then put this application into water, ventilate to battery notes liquid hole 15 through the gas injection trachea this moment, then observe the bubble change of battery roller groove structure 14 department, if there is the bubble to produce, then judge that battery roller groove structure 14 department leakproofness is not good, if there is not the bubble to produce, then judge that battery roller groove structure 14 department leakproofness is good, observe through transparent back shrouding 5 during the test.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; 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 (8)
1. The sealing test tool for the cylindrical battery roller groove hemming structure is characterized by comprising an upper pressing component, a lower pressing component, a front end sealing component and a rear end positioning component, wherein the upper pressing component and the lower pressing component are arranged in an outer frame;
the front end sealing assembly comprises a sealing ring (13) for installing the front end of the outer frame, wherein the inner side of the sealing ring (13) at the front end of the outer frame is also provided with an air injection assembly.
2. The cylindrical battery roll groove hemming structure seal test tool according to claim 1, wherein: the upper and lower compressing assembly comprises a connecting plate (3), an upper compressing plate (4), a lower compressing plate (16) and compressing driving parts, wherein the upper compressing plate (4) and the lower compressing plate (16) are symmetrically arranged, the connecting plate (3) is arranged at the top of the upper compressing plate (4), and the upper part of the connecting plate (3) is connected with the compressing driving parts arranged on the outer frame.
3. The cylindrical battery roll groove hemming structure seal test tool according to claim 2, wherein: the compression driving piece is an upper compression adjusting nut (12), wherein the top of the upper compression adjusting nut (12) is arranged on the outer frame, and the bottom of the upper compression adjusting nut is arranged on the connecting plate (3).
4. The cylindrical battery roll groove hemming structure seal test tool according to claim 2, wherein: an arc-shaped groove corresponding to the cylindrical battery is formed in one side, facing the lower pressing plate (16), of the upper pressing plate (4), and an arc-shaped groove corresponding to the cylindrical battery is formed in one side, facing the upper pressing plate (4), of the lower pressing plate (16).
5. The cylindrical battery roll groove hemming structure seal test tool according to claim 2, wherein: the two sides of the upper pressing plate (4) are connected with the lower pressing plate (16) through springs.
6. The cylindrical battery roll groove hemming structure seal test tool according to claim 1, wherein: the outer frame comprises a top plate (2), a bottom plate (8), a rear sealing plate (5), a front pressing plate (10) and two side sealing plates (6), wherein the top of each side sealing plate (6) is detachably mounted with the top plate (2), and the bottom of each side sealing plate is detachably mounted with the bottom plate (8); the rear ends of the two side sealing plates (6) are detachably mounted with the rear sealing plate (5), and the front ends of the two side sealing plates are detachably mounted with the front pressing plate (10) through the adjustable lock catch (7).
7. The cylindrical battery roll groove hemming structure seal test tool according to claim 6, wherein: the gas injection assembly comprises a gas inlet (11) arranged on the front pressing plate (10).
8. The cylindrical battery roll groove hemming structure seal test tool according to claim 1, wherein: the rear end locating component comprises a locating partition board (1), the locating partition board (1) is inserted into the bottom board (8) from the top of the outer frame, and a clamping groove corresponding to the cylindrical battery is formed in the bottom of the locating partition board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322242761.5U CN220583688U (en) | 2023-08-18 | 2023-08-18 | Cylindrical battery roller groove hemming structure sealing test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322242761.5U CN220583688U (en) | 2023-08-18 | 2023-08-18 | Cylindrical battery roller groove hemming structure sealing test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583688U true CN220583688U (en) | 2024-03-12 |
Family
ID=90114891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322242761.5U Active CN220583688U (en) | 2023-08-18 | 2023-08-18 | Cylindrical battery roller groove hemming structure sealing test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583688U (en) |
-
2023
- 2023-08-18 CN CN202322242761.5U patent/CN220583688U/en active Active
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