CN215178387U - Explosion-proof valve plugging device for air tightness test of lithium battery pack - Google Patents
Explosion-proof valve plugging device for air tightness test of lithium battery pack Download PDFInfo
- Publication number
- CN215178387U CN215178387U CN202121229101.8U CN202121229101U CN215178387U CN 215178387 U CN215178387 U CN 215178387U CN 202121229101 U CN202121229101 U CN 202121229101U CN 215178387 U CN215178387 U CN 215178387U
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- support
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- plugging
- proof valve
- positioning
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 21
- 238000012856 packing Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a lithium cell package air tightness test is with explosion-proof valve plugging device, including the arc housing, be fixed in the support positioning seat on arc housing top, be fixed in the U-shaped picture peg of arc housing bottom, lower part stretch into the shutoff support in the arc housing, connect in the pneumatic joint on shutoff support top, suit on the shutoff support and be located the spring of arc housing and connect in the magnet and the sealed pad of shutoff support bottom. The utility model discloses the cover is equipped with the spring on the shutoff support, and shutoff support bottom is provided with magnet, utilizes elasticity and magnetic force stack, and the decurrent extrusion force of increase shutoff support realizes sealed the inseparable extrusion of filling up with explosion-proof valve, and sealed a plurality of pores of filling up on to explosion-proof valve seal up the shutoff, and is sealed effectual, and has improved the bearing capacity when testing, has guaranteed the accuracy of test. The utility model discloses a hand wheel drives the shutoff support and reciprocates, realizes the dismouting fast, improves the efficiency of test greatly.
Description
Technical Field
The utility model relates to a lithium cell test technical field specifically is an explosion-proof valve plugging device is used in test of lithium cell package gas tightness.
Background
Lithium cell package need carry out the gas tightness to lithium cell package and detect in process of production to judge the waterproof dustproof ability of lithium cell package, need aerify and test lithium cell package internal pressure to lithium cell package inside during the detection, and then reach the purpose of test lithium cell package gas tightness. Because the lithium cell package is equipped with explosion-proof valve, and it has a plurality of pores to open on the explosion-proof valve, and the pore can circulate with outside air, consequently, when carrying out the gas tightness to the lithium cell package and examining, need carry out effective shutoff to explosion-proof valve, just can guarantee the accuracy of test.
In the prior art, the explosion-proof valve is plugged by winding an adhesive tape and a sealant manually, so that time and labor are wasted, the labor intensity and labor cost of workers are increased, and the testing efficiency is low. Meanwhile, when the mode is adopted for plugging, the plugging effect is poor, and the test effect is seriously influenced because the plugging device cannot bear larger pressure during testing.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a lithium cell package air tightness test is with explosion-proof valve plugging device, the dismouting is convenient fast, realizes the quick seal to explosion-proof valve, and is sealed effectual, has improved bearing capacity and efficiency of software testing when testing, has guaranteed the accuracy of test.
The technical scheme of the utility model is that:
an explosion-proof valve plugging device for a lithium battery pack airtightness test comprises an arc-shaped housing, a support positioning seat fixed at the top end of the arc-shaped housing, a U-shaped plug board fixed at the bottom end of the arc-shaped housing, a plugging support, a pneumatic connector, a spring, a magnet and a sealing gasket; the pneumatic connector is connected to the top end of the plugging support, the magnet and the sealing gasket are connected to the bottom end of the plugging support, the sealing gasket is located on the periphery of the magnet, a positioning block is fixed on the outer wall of the upper portion of the plugging support, the lower portion of the plugging support penetrates through the support positioning seat from top to bottom and extends into the arc-shaped housing, the positioning block is matched with a positioning groove towards the upper opening of the support positioning seat, the spring is sleeved on the lower portion of the plugging support, the top end of the spring is fixedly connected with the lower end face of the support positioning seat, and the bottom end of the spring is fixedly connected with the bottom end of the plugging support; when the positioning block is supported on the support positioning seat, the distance between the sealing gasket and the U-shaped inserting plate is greater than the thickness of the explosion-proof valve, and when the positioning block is embedded into the positioning groove of the support positioning seat, the distance between the sealing gasket and the U-shaped inserting plate is not greater than the thickness of the explosion-proof valve.
The top of the plugging support is fixed with a hand wheel, and the pneumatic connector is positioned above the hand wheel.
The bottom mounting of shutoff support have the positioning groove shell, the opening of positioning groove shell is down, the positioning groove shell internal fixation is provided with annular baffle and cuts apart into the inside circular shape magnet constant head tank and the sealed constant head tank of annular of packing of cutting apart of positioning groove shell, magnet be fixed in the magnet constant head tank, sealed pad be fixed in sealed pad constant head tank, the level of sealed pad bottom is less than the level of magnet bottom and is higher than the level of positioning groove shell bottom, the locating piece support when on the support positioning seat, the distance between positioning groove shell bottom and the U-shaped picture peg is greater than the thickness of explosion-proof valve.
Two positioning blocks which are symmetrical along the radial direction of the plugging support are fixed on the outer wall of the upper part of the plugging support, and the shape of the cross section of the positioning groove of the support positioning seat is consistent with the shape of the cross section of the plugging support at the height position of the positioning blocks.
The utility model has the advantages that:
the utility model discloses the cover is equipped with the spring on the shutoff support, and shutoff support bottom is provided with magnet, utilizes elasticity and magnetic force stack, and the decurrent extrusion force of increase shutoff support realizes sealed the inseparable extrusion of filling up with explosion-proof valve, and sealed a plurality of pores of filling up on to explosion-proof valve seal up the shutoff, and is sealed effectual, and has improved the bearing capacity when testing, has guaranteed the accuracy of test. The utility model discloses a hand wheel drives the shutoff support and reciprocates, realizes the dismouting fast, improves the efficiency of test greatly.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a schematic structural diagram of the explosion-proof valve connected to a structural plate of a lithium battery pack box body.
Fig. 3 is a sectional view of the present invention connected to an explosion-proof valve.
Fig. 4 is a schematic structural view of the plugging bracket of the present invention.
Fig. 5 is a schematic structural diagram of the arc-shaped housing of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the explosion-proof valve plugging device for the air tightness test of the lithium battery pack comprises an arc-shaped housing 1, a support positioning seat 2 fixed at the top end of the arc-shaped housing 1, a U-shaped plug board 3 fixed at the bottom end of the arc-shaped housing 1, a plugging support 4, a pneumatic connector 5, a spring 6, a magnet 7 and a sealing gasket 8;
the pneumatic connector 5 is connected on the top of the plugging support 4, a hand wheel 9 is fixed at the top of the plugging support 4, the pneumatic connector 5 is positioned above the hand wheel 9, a positioning groove shell 10 is fixed at the bottom end of the plugging support 4, the opening of the positioning groove shell 10 faces downwards, an annular partition plate 11 is fixedly arranged in the positioning groove shell 10 to divide the inside of the positioning groove shell 10 into a circular magnet positioning groove and an annular sealing gasket positioning groove, a magnet 7 is fixed in the magnet positioning groove, a sealing gasket 8 is fixed in the sealing gasket positioning groove, the horizontal height of the bottom end of the sealing gasket 8 is lower than that of the bottom end of the magnet 7 and higher than that of the bottom end of the positioning groove shell 10, two positioning blocks 12 which are radially symmetrical along the plugging support 4 are fixed on the outer wall of the upper portion of the plugging support 4, the lower portion of the plugging support 4 penetrates through the support 2 from top to bottom to extend into the arc-shaped housing 1, the cross-section shape of the positioning groove of the support positioning seat 2 is consistent with that of the plugging support 4 is positioned at the height of the positioning blocks 12 The positioning block 12 is embedded into a positioning groove 13 with an upward opening of the support positioning seat 2, the spring 6 is sleeved at the lower part of the plugging support 4, the top end of the spring 6 is fixedly connected with the lower end face of the support positioning seat 2, and the bottom end of the spring 6 is fixedly connected with the positioning groove shell 10; when the two positioning blocks 12 are supported on the bracket positioning seat 2, namely are not embedded into the positioning groove 13 of the bracket positioning seat 2, the distance between the sealing gasket 8 and the U-shaped inserting plate 3 is greater than the thickness of the explosion-proof valve 14, and when the two positioning blocks 12 are embedded into the positioning groove 13 of the bracket positioning seat 2, the distance between the sealing gasket 8 and the U-shaped inserting plate 3 is less than the thickness of the explosion-proof valve 14.
The utility model discloses a theory of operation:
(1) firstly, the hand wheel 9 is held to pull up the plugging support 4, the spring 6 is compressed at the moment, then the hand wheel 9 rotates 90 degrees anticlockwise, so that the two positioning blocks 12 and the positioning groove 13 are staggered by 90 degrees, the hand wheel 9 is loosened, the plugging support 4 moves downwards under the action of the spring 6, the two positioning blocks 12 cannot be embedded into the positioning groove 13 but are supported on the support positioning seat 2 due to the fact that the two positioning blocks 12 and the positioning groove 13 are staggered, the distance between the bottom end of the positioning groove shell 10 and the U-shaped plug board 3 is larger than the thickness of the explosion-proof valve 14 at the moment, then the U-shaped plug board 3 is inserted into an annular groove between the explosion-proof valve 14 and the lithium battery pack box body structure board 15, and the explosion-proof valve 14 is positioned between the positioning groove shell 10 and the U-shaped plug board 3;
(2) the sealing support 4 is pulled upwards by holding the hand wheel 9, then the hand wheel 9 rotates clockwise by 90 degrees, so that the two positioning blocks 12 are reset, the hand wheel 9 is loosened, the sealing support 4 moves downwards under the action of the spring 6, the two positioning blocks 12 are embedded into the positioning grooves 13 of the support positioning seat 2, and the sealing gasket 8 is tightly extruded on the explosion-proof valve 14 to seal a plurality of pores on the explosion-proof valve 14 due to the action of the pressure of the spring 6 and the suction force of the magnet 5, so that a sealing space is formed, and at the moment, the air tightness test can be carried out;
(3) after the airtightness test is completed, the hand wheel 9 is held by hands again to pull up the plugging support 4, the hand wheel 9 rotates anticlockwise for 90 degrees again, the hand wheel 9 is loosened, the two positioning blocks 12 are supported on the support positioning seat 2, the distance between the bottom end of the positioning groove shell 10 and the U-shaped inserting plate 3 is larger than the thickness of the explosion-proof valve 14, the U-shaped inserting plate 3 is taken out from the annular groove between the explosion-proof valve 14 and the lithium battery pack box body structural plate 15, the whole explosion-proof valve plugging device can be taken down from the explosion-proof valve 14, and the whole test is finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an explosion-proof valve plugging device is used in test of lithium cell package gas tightness which characterized in that: the device comprises an arc-shaped housing, a support positioning seat fixed at the top end of the arc-shaped housing, a U-shaped inserting plate fixed at the bottom end of the arc-shaped housing, a plugging support, a pneumatic connector, a spring, a magnet and a sealing gasket; the pneumatic connector is connected to the top end of the plugging support, the magnet and the sealing gasket are connected to the bottom end of the plugging support, the sealing gasket is located on the periphery of the magnet, a positioning block is fixed on the outer wall of the upper portion of the plugging support, the lower portion of the plugging support penetrates through the support positioning seat from top to bottom and extends into the arc-shaped housing, the positioning block is matched with a positioning groove towards the upper opening of the support positioning seat, the spring is sleeved on the lower portion of the plugging support, the top end of the spring is fixedly connected with the lower end face of the support positioning seat, and the bottom end of the spring is fixedly connected with the bottom end of the plugging support; when the positioning block is supported on the support positioning seat, the distance between the sealing gasket and the U-shaped inserting plate is greater than the thickness of the explosion-proof valve, and when the positioning block is embedded into the positioning groove of the support positioning seat, the distance between the sealing gasket and the U-shaped inserting plate is not greater than the thickness of the explosion-proof valve.
2. The explosion-proof valve plugging device for the lithium battery pack airtightness test according to claim 1, wherein: the top of the plugging support is fixed with a hand wheel, and the pneumatic connector is positioned above the hand wheel.
3. The explosion-proof valve plugging device for the lithium battery pack airtightness test according to claim 1, wherein: the bottom mounting of shutoff support have the positioning groove shell, the opening of positioning groove shell is down, the positioning groove shell internal fixation is provided with annular baffle and cuts apart into the inside circular shape magnet constant head tank and the sealed constant head tank of annular of packing of cutting apart of positioning groove shell, magnet be fixed in the magnet constant head tank, sealed pad be fixed in sealed pad constant head tank, the level of sealed pad bottom is less than the level of magnet bottom and is higher than the level of positioning groove shell bottom, the locating piece support when on the support positioning seat, the distance between positioning groove shell bottom and the U-shaped picture peg is greater than the thickness of explosion-proof valve.
4. The explosion-proof valve plugging device for the lithium battery pack airtightness test according to claim 1, wherein: two positioning blocks which are symmetrical along the radial direction of the plugging support are fixed on the outer wall of the upper part of the plugging support, and the shape of the cross section of the positioning groove of the support positioning seat is consistent with the shape of the cross section of the plugging support at the height position of the positioning blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121229101.8U CN215178387U (en) | 2021-06-02 | 2021-06-02 | Explosion-proof valve plugging device for air tightness test of lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121229101.8U CN215178387U (en) | 2021-06-02 | 2021-06-02 | Explosion-proof valve plugging device for air tightness test of lithium battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215178387U true CN215178387U (en) | 2021-12-14 |
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ID=79377674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121229101.8U Active CN215178387U (en) | 2021-06-02 | 2021-06-02 | Explosion-proof valve plugging device for air tightness test of lithium battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215178387U (en) |
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2021
- 2021-06-02 CN CN202121229101.8U patent/CN215178387U/en active Active
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