CN214277325U - Lithium battery air tightness detection device - Google Patents
Lithium battery air tightness detection device Download PDFInfo
- Publication number
- CN214277325U CN214277325U CN202022754135.0U CN202022754135U CN214277325U CN 214277325 U CN214277325 U CN 214277325U CN 202022754135 U CN202022754135 U CN 202022754135U CN 214277325 U CN214277325 U CN 214277325U
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- China
- Prior art keywords
- fixed cylinder
- fixedly connected
- lithium battery
- plate
- top end
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 79
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 65
- 230000000694 effects Effects 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000012031 short term test Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 19
- 238000003466 welding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a lithium cell gas tightness detection device, its technical scheme is: including the solid fixed cylinder, gu fixed cylinder bottom opening, gu the fixed cylinder bottom is equipped with the end cover board, end cover board top fixedly connected with layer board, layer board top fixedly connected with end gasket, the retainer plate under the end cover board top fixedly connected with, the retainer plate cup joints the outside at the layer board down, the inlet port has all been seted up to the inside of end cover board and layer board, gu the inside top seal mechanism that is equipped with of fixed cylinder, the beneficial effects of the utility model are that: through setting up fixed box at the top of a solid fixed cylinder, the inside of a solid fixed cylinder is arranged in to the lithium cell, exposes the top of lithium cell in the airtight space in the solid fixed cylinder, and the lateral wall of lithium cell is inside solid fixed cylinder, through judging the inside atmospheric pressure change of solid fixed cylinder and solid fixed box, but the short-term test goes out the gas leakage face of lithium cell, and easy operation is convenient, has improved detection efficiency.
Description
Technical Field
The utility model relates to a battery detection technology field, concretely relates to lithium cell gas tightness detection device.
Background
In the production and manufacturing process of the lithium battery, the poor welding and sealing of the top cover of the lithium battery can cause the outflow of internal electrolyte, thereby affecting the quality of the battery; therefore, the battery needs to be checked for airtightness. When the lithium battery is tested, air with certain pressure is introduced into the test air hole in the battery, the battery is placed in a closed environment, and the air pressure change in the environment is tested, so that the air tightness of the battery can be detected
In the prior art, whether a lithium battery has air tightness can be detected only, and if the battery leaks air, the side wall of the battery or the end part of the battery cannot be detected, so that the air leakage surface of the battery cannot be judged quickly.
Therefore, it is necessary to invent a lithium battery airtightness detection device.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a lithium cell gas tightness detection device sets up fixed box through the top at a solid fixed cylinder, and the inside of a solid fixed cylinder is arranged in to the lithium cell, exposes the top of lithium cell in the airtight space in the fixed box, and the lateral wall of lithium cell is inside a solid fixed cylinder, through judging the inside atmospheric pressure change of solid fixed cylinder and fixed box, can detect out the gas leakage face of lithium cell fast, and easy operation is convenient, has improved detection efficiency to solve the problem that can't detect out the battery gas leakage face among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: a lithium battery air tightness detection device comprises a fixed cylinder, wherein the bottom end of the fixed cylinder is open, a bottom cover plate is arranged at the bottom end of the fixed cylinder, a supporting plate is fixedly connected to the top end of the bottom cover plate, a bottom gasket is fixedly connected to the top end of the supporting plate, a lower fixing ring is fixedly connected to the top end of the bottom cover plate, the lower fixing ring is sleeved on the outer side of the supporting plate, air inlets are formed in the bottom cover plate and the supporting plate, a lithium battery is arranged at the top end of the supporting plate, and a pushing mechanism is arranged at the bottom end of the bottom cover plate;
a top sealing mechanism is arranged in the fixed cylinder and comprises an upper sealing plate, the bottom end of the upper sealing plate is fixedly connected with an upper fixing ring, the bottom end of the upper sealing plate is fixedly connected with a top gasket, an exhaust hole is formed in the upper sealing plate, the top end of the upper sealing plate is fixedly connected with a sealing ring, the inner wall of the top end of the fixed cylinder is fixedly connected with a butt joint ring, the butt joint ring is arranged right above the sealing ring, the bottom end of the butt joint ring is provided with a butt joint groove, the inner side of the butt joint groove is matched with the sealing ring, the top end of the upper sealing plate is fixedly connected with a spring, and the top end of the spring is fixedly connected with the inner wall of the fixed cylinder;
the inner wall of the top end of the fixed cylinder is provided with a through hole, the through hole is arranged right above the exhaust hole, the top end of the fixed cylinder is fixedly connected with a fixed box, the inner wall of the fixed cylinder is fixedly provided with a first pressure sensor, and the inner wall of the fixed box is fixedly provided with a second pressure sensor;
go up the retainer plate outside and be equipped with guiding mechanism, guiding mechanism includes the retainer plate, the periphery lateral wall of retainer plate and the inner wall fixed connection of solid fixed cylinder, the outer side at last retainer plate is cup jointed in the guide ring activity.
Preferably, guiding mechanism includes slide bar and sliding sleeve, sliding sleeve one side and the fixed welding of outer wall of guide ring, the slide bar top is connected with the inner wall fixed connection of a fixed section of thick bamboo, the sliding sleeve slides and cup joints in the outside of slide bar.
Preferably, the sliding sleeves are arranged in two numbers, and the two sliding sleeves are symmetrically distributed about the central axis of the upper sealing plate.
Preferably, the pushing mechanism comprises a base, the base is arranged under the bottom cover plate, an air cylinder is fixedly arranged at the top end of the base, and the top end of the air cylinder is fixedly connected with the bottom cover plate.
Preferably, a supporting plate is fixedly connected to one side of the base, and one side of the fixed cylinder is fixedly connected with the supporting plate.
Preferably, an air pump is fixedly mounted on one side of the supporting plate, an output end of the air pump is communicated with an air hose, one end, far away from the air pump, of the air hose is fixedly connected with the bottom end of the bottom cover plate, and the air hose is communicated with the air inlet hole.
Preferably, the front side fixed mounting of fixed box has the control box, control box front side fixed mounting has the display screen, control box front side fixed mounting has the pilot lamp, pilot lamp quantity is established to two, control box internally mounted has the singlechip, singlechip input electric connection has the AD converter, singlechip output electric connection has the DA converter, first pressure sensor and second pressure sensor all with AD converter electric connection, pilot lamp and DA converter electric connection, singlechip and display screen electric connection.
Preferably, the top end of the bottom cover plate is fixedly connected with a sealing gasket.
The utility model has the advantages that:
1. the utility model discloses a set up the fixed box at the top of a fixed cylinder, the lithium cell is arranged in the inside of a fixed cylinder, exposes the top of lithium cell in the airtight space in the fixed box, and the lateral wall of lithium cell is inside a fixed cylinder, through judging the atmospheric pressure change in a fixed cylinder and a fixed box, can detect out the gas leakage face of lithium cell fast, and easy operation is convenient, has improved detection efficiency;
2. the utility model discloses a set up guiding mechanism, when going up the retainer plate rebound, go up retainer plate accessible sliding sleeve along the vertical stable rebound of slide bar for go up shifting up that the shrouding can be stable and drive the sealing washer butt joint and advance to the butt joint inslot, improved the precision of sealing washer with the butt joint groove butt joint, guarantee the sealed effect of fixed box inner space.
Drawings
Fig. 1 is a schematic view of the overall structure provided by the present invention;
fig. 2 is a front sectional view of the fixed cylinder and the bottom cover plate provided by the present invention;
fig. 3 is a schematic view of the overall structure of the fixing cylinder and the fixing box provided by the present invention;
fig. 4 is a schematic view of the overall structure of the bottom cover plate provided by the present invention;
fig. 5 is a schematic view of the overall structure of the upper sealing plate provided by the present invention;
fig. 6 is an enlarged view of a point a in fig. 2 according to the present invention;
fig. 7 is a block diagram of a detection system provided by the present invention;
fig. 8 is a cross-sectional view of a fixing cylinder according to embodiment 2 of the present invention.
In the figure: the device comprises a fixing cylinder 1, a bottom cover plate 2, a supporting plate 3, a bottom gasket 4, a lower fixing ring 5, an air inlet hole 6, a lithium battery 7, an upper sealing plate 8, an upper fixing ring 9, a top gasket 10, an exhaust hole 11, a sealing ring 12, a butt joint ring 13, a butt joint groove 14, a spring 15, a through hole 16, a first pressure sensor 17, a second pressure sensor 18, a guide ring 19, a sliding rod 20, a sliding sleeve 21, a base 22, a cylinder 23, a supporting plate 24, an air pump 25, an air hose 26, a fixing box 27, a control box 28, a display screen 29, an indicator lamp 30 and a sealing gasket 31.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
a top sealing mechanism is arranged in the fixed cylinder 1 and comprises an upper sealing plate 8, the bottom end of the upper sealing plate 8 is fixedly connected with an upper fixing ring 9, the bottom end of the upper sealing plate 8 is fixedly connected with a top gasket 10, an exhaust hole 11 is formed in the upper sealing plate 8, the top end of the upper sealing plate 8 is fixedly connected with a sealing ring 12, the inner wall of the top end of the fixed cylinder 1 is fixedly connected with a butt ring 13, the butt ring 13 is arranged right above the sealing ring 12, a butt groove 14 is formed in the bottom end of the butt ring 13, the inner side of the butt groove 14 is matched with the sealing ring 12, the top end of the upper sealing plate 8 is fixedly connected with a spring 15, and the top end of the spring 15 is fixedly connected with the inner wall of the fixed cylinder 1;
a through hole 16 is formed in the inner wall of the top end of the fixed cylinder 1, the through hole 16 is arranged right above the exhaust hole 11, a fixed box 27 is fixedly connected to the top end of the fixed cylinder 1, a first pressure sensor 17 is fixedly mounted on the inner wall of the fixed cylinder 1, and a second pressure sensor 18 is fixedly mounted on the inner wall of the fixed box 27;
go up the retainer plate 9 outside and be equipped with guiding mechanism, guiding mechanism includes guide ring 19, the periphery lateral wall of guide ring 19 and the inner wall fixed connection of solid fixed cylinder 1, guide ring 19 activity cup joints in the outside of last retainer plate 9.
Further, the pushing mechanism comprises a base 22, the base 22 is arranged right below the bottom cover plate 2, an air cylinder 23 is fixedly installed at the top end of the base 22, and the top end of the air cylinder 23 is fixedly connected with the bottom cover plate 2;
furthermore, a supporting plate 24 is fixedly connected to one side of the base 22, and one side of the fixed cylinder 1 is fixedly connected to the supporting plate 24;
further, an air pump 25 is fixedly installed on one side of the support plate 24, an output end of the air pump 25 is communicated with an air hose 26, one end, far away from the air pump 25, of the air hose 26 is fixedly connected with the bottom end of the bottom cover plate 2, and the air hose 26 is communicated with the air inlet 6;
further, a control box 28 is fixedly installed on the front side of the fixing box 27, a display screen 29 is fixedly installed on the front side of the control box 28, indicator lamps 30 are fixedly installed on the front side of the control box 28, the number of the indicator lamps 30 is two, a single chip microcomputer is installed inside the control box 28, the input end of the single chip microcomputer is electrically connected with an a/D converter, the output end of the single chip microcomputer is electrically connected with a D/a converter, the first pressure sensor 17 and the second pressure sensor 18 are both electrically connected with the a/D converter, the indicator lamps 30 are electrically connected with the D/a converter, and the single chip microcomputer is electrically connected with the display screen;
further, a sealing gasket 31 is fixedly connected to the top end of the bottom cover plate 2.
The utility model discloses a use as follows: by arranging the fixing cylinder 1 and the bottom cover plate 2, when the air tightness of the lithium battery 7 is detected, firstly, the starting cylinder 23 is contracted to drive the bottom cover plate 2 to move downwards, the bottom of the lithium battery 7 is arranged on the supporting plate 3, then, the starting cylinder 23 pushes the bottom cover plate 2 to move upwards, and further, the lithium battery 7 is driven to enter the inner fixing cylinder 1 of the fixing cylinder 1 to be provided with the upper sealing plate 8, the top end of the lithium battery 7 is abutted against the upper sealing plate 8, the lithium battery 7 pushes the upper sealing plate 8 to move upwards, the upper sealing plate 8 compresses the spring 15 when moving upwards, the sealing ring 12 at the top end of the upper sealing plate 8 is abutted into the abutting groove 14, so that the inner part of the fixing box 27 forms a closed space, at the moment, the internal pressure of the fixing box 27 is constant, the lithium battery 7 is fixed between the supporting plate 3 and the upper sealing plate 8, the lower fixing ring 5 can reinforce the bottom end of the lithium battery 7, and the upper fixing ring 9 can reinforce the top end of the lithium battery 7, so that the lithium battery 7 is kept stable in the fixed cylinder 1, the bottom cover plate 2 is abutted to the bottom outer wall of the fixed cylinder 1, the sealing gasket 31 is arranged at the top end of the bottom cover plate 2, the sealing gasket 31 is attached to the bottom outer wall of the fixed cylinder 1, at the moment, the space inside the fixed cylinder 1 is closed, the pressure inside the fixed cylinder 1 is constant, the air pump 25 is started to pump air into the air inlet 6 through the air hose 26, the test air hole of the lithium battery 7 is aligned to the top end of the air inlet 6, the air enters the lithium battery 7, the pressure is maintained inside the lithium battery 7 through the air pump 25, if the side wall of the lithium battery 7 has an air leakage phenomenon, the air inside the lithium battery 7 enters the fixed cylinder 1 through the side wall of the lithium battery 7, the first pressure sensor 17 inside the fixed cylinder 1 rapidly senses the air pressure change, and the first pressure sensor 17 transmits a sensing signal to the A/D converter, the sensing signal is converted into a digital signal through an A/D converter and transmitted to a single chip microcomputer, the single chip microcomputer transmits the digital signal to a display screen 29 for display, the display screen 29 displays the air pressure value inside the fixed cylinder 1, one indicator lamp 30 flickers, similarly, when the top of the lithium battery 7 leaks air, the air inside the lithium battery 7 enters the fixed box 27 through the exhaust hole 11 and the through hole 16, the second pressure sensor 18 inside the fixed box 27 senses the air pressure change, the air pressure value inside the fixed box 27 is displayed on the display screen 29, the other indicator lamp 30 flickers, the fixed box 27 is arranged at the top of the fixed cylinder 1, the lithium battery 7 is arranged inside the fixed cylinder 1, the top of the lithium battery 7 is exposed in the closed space inside the fixed box 27, the side wall of the lithium battery 7 is arranged inside the fixed cylinder 1, and by judging the air pressure change inside the fixed cylinder 1 and the fixed box 27, can detect out the gas leakage face of lithium cell 7 fast, easy operation is convenient, has improved detection efficiency, through set up guiding mechanism in the outside at last retainer plate 9, when going up retainer plate 9 rebound, goes up retainer plate 9 and can be along the stable rebound of the inner wall of guide ring 19 for it is more stable when going up shrouding 8 and rising.
Further, the number of the sliding sleeves 21 is two, and the two sliding sleeves 21 are symmetrically distributed about the central axis of the upper sealing plate 8.
The utility model discloses a use as follows: by arranging the fixing cylinder 1 and the bottom cover plate 2, when the air tightness of the lithium battery 7 is detected, firstly, the starting cylinder 23 is contracted to drive the bottom cover plate 2 to move downwards, the bottom of the lithium battery 7 is arranged on the supporting plate 3, then, the starting cylinder 23 pushes the bottom cover plate 2 to move upwards, and further, the lithium battery 7 is driven to enter the fixing cylinder 1, the upper sealing plate 8 is arranged in the fixing cylinder 1, the top end of the lithium battery 7 is abutted against the upper sealing plate 8, the lithium battery 7 pushes the upper sealing plate 8 to move upwards, the spring 15 is compressed when the upper sealing plate 8 moves upwards, the sealing ring 12 at the top end of the upper sealing plate 8 is abutted into the abutting groove 14, so that a closed space is formed in the fixing box 27, at the moment, the internal pressure of the fixing box 27 is constant, the lithium battery 7 is fixed between the supporting plate 3 and the upper sealing plate 8, the lower fixing ring 5 can reinforce the bottom end of the lithium battery 7, and the upper fixing ring 9 can reinforce the top end of the lithium battery 7, so that the lithium battery 7 is kept stable in the fixed cylinder 1, the bottom cover plate 2 is abutted to the bottom outer wall of the fixed cylinder 1, the sealing gasket 31 is arranged at the top end of the bottom cover plate 2, the sealing gasket 31 is attached to the bottom outer wall of the fixed cylinder 1, at the moment, the space inside the fixed cylinder 1 is closed, the pressure inside the fixed cylinder 1 is constant, the air pump 25 is started to pump air into the air inlet 6 through the air hose 26, the test air hole of the lithium battery 7 is aligned to the top end of the air inlet 6, the air enters the lithium battery 7, the pressure is maintained inside the lithium battery 7 through the air pump 25, if the side wall of the lithium battery 7 has an air leakage phenomenon, the air inside the lithium battery 7 enters the fixed cylinder 1 through the side wall of the lithium battery 7, the first pressure sensor 17 inside the fixed cylinder 1 rapidly senses the air pressure change, and the first pressure sensor 17 transmits a sensing signal to the A/D converter, the sensing signal is converted into a digital signal through an A/D converter and transmitted to a single chip microcomputer, the single chip microcomputer transmits the digital signal to a display screen 29 for display, the display screen 29 displays the air pressure value inside the fixed cylinder 1, one indicator lamp 30 flickers, similarly, when the top of the lithium battery 7 leaks air, the air inside the lithium battery 7 enters the fixed box 27 through the exhaust hole 11 and the through hole 16, the second pressure sensor 18 inside the fixed box 27 senses the air pressure change, the air pressure value inside the fixed box 27 is displayed on the display screen 29, the other indicator lamp 30 flickers, the fixed box 27 is arranged at the top of the fixed cylinder 1, the lithium battery 7 is arranged inside the fixed cylinder 1, the top of the lithium battery 7 is exposed in the closed space inside the fixed box 27, the side wall of the lithium battery 7 is arranged inside the fixed cylinder 1, and by judging the air pressure change inside the fixed cylinder 1 and the fixed box 27, can detect out the gas leakage face of lithium cell 7 fast, easy operation is convenient, has improved detection efficiency, through setting up guiding mechanism, when going up retainer plate 9 rebound, go up retainer plate 9 accessible sliding sleeve 21 along the vertical stable rebound of slide bar 20 for go up the shrouding 8 can be stable move up drive sealing washer 12 butt joint and advance in butt joint groove 14, improved the precision of sealing washer 12 and butt joint groove 14 butt joint, guarantee the sealed effect of 27 inner spaces of fixed box.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (8)
1. The utility model provides a lithium cell gas tightness detection device, includes a fixed section of thick bamboo (1), its characterized in that: the bottom end of the fixed cylinder (1) is open, a bottom cover plate (2) is arranged at the bottom end of the fixed cylinder (1), a supporting plate (3) is fixedly connected to the top end of the bottom cover plate (2), a bottom gasket (4) is fixedly connected to the top end of the supporting plate (3), a lower fixing ring (5) is fixedly connected to the top end of the bottom cover plate (2), the lower fixing ring (5) is sleeved on the outer side of the supporting plate (3), air inlets (6) are formed in the bottom cover plate (2) and the supporting plate (3), a lithium battery (7) is arranged at the top end of the supporting plate (3), and a pushing mechanism is arranged at the bottom end of the bottom cover plate (2);
the sealing device is characterized in that a top sealing mechanism is arranged inside the fixed cylinder (1), the top sealing mechanism comprises an upper sealing plate (8), the bottom end of the upper sealing plate (8) is fixedly connected with an upper fixing ring (9), the bottom end of the upper sealing plate (8) is fixedly connected with a top gasket (10), an exhaust hole (11) is formed inside the upper sealing plate (8), the top end of the upper sealing plate (8) is fixedly connected with a sealing ring (12), the inner wall of the top end of the fixed cylinder (1) is fixedly connected with a butt ring (13), the butt ring (13) is arranged right above the sealing ring (12), a butt groove (14) is formed in the bottom end of the butt ring (13), the inner side of the butt groove (14) is matched with the sealing ring (12), a spring (15) is fixedly connected to the top end of the upper sealing plate (8), and the top end of the spring (15) is fixedly connected with the inner wall of the fixed cylinder (1);
a through hole (16) is formed in the inner wall of the top end of the fixed cylinder (1), the through hole (16) is formed right above the exhaust hole (11), a fixed box (27) is fixedly connected to the top end of the fixed cylinder (1), a first pressure sensor (17) is fixedly mounted on the inner wall of the fixed cylinder (1), and a second pressure sensor (18) is fixedly mounted on the inner wall of the fixed box (27);
go up retainer plate (9) outside and be equipped with guiding mechanism, guiding mechanism includes guide ring (19), the periphery lateral wall of guide ring (19) and the inner wall fixed connection of solid fixed cylinder (1), guide ring (19) activity cup joints the outside at last retainer plate (9).
2. The lithium battery airtightness detection apparatus according to claim 1, wherein: the guide mechanism comprises a sliding rod (20) and a sliding sleeve (21), one side of the sliding sleeve (21) is fixedly welded with the outer wall of the guide ring (19), the top end of the sliding rod (20) is fixedly connected with the inner wall of the fixed cylinder (1), and the sliding sleeve (21) is slidably sleeved on the outer side of the sliding rod (20).
3. The lithium battery airtightness detection apparatus according to claim 2, wherein: the number of the sliding sleeves (21) is two, and the sliding sleeves (21) are symmetrically distributed about the central axis of the upper sealing plate (8).
4. The lithium battery airtightness detection apparatus according to claim 1, wherein: push mechanism includes base (22), establish under end cover plate (2) base (22), base (22) top fixed mounting has cylinder (23), cylinder (23) top and end cover plate (2) fixed connection.
5. The lithium battery airtightness detection apparatus according to claim 4, wherein: one side of the base (22) is fixedly connected with a supporting plate (24), and one side of the fixed cylinder (1) is fixedly connected with the supporting plate (24).
6. The lithium battery airtightness detection apparatus according to claim 5, wherein: an air pump (25) is fixedly mounted on one side of the supporting plate (24), an output end of the air pump (25) is communicated with an air hose (26), one end, far away from the air pump (25), of the air hose (26) is fixedly connected with the bottom end of the bottom cover plate (2), and the air hose (26) is communicated with the air inlet hole (6).
7. The lithium battery airtightness detection apparatus according to claim 1, wherein: the front side fixed mounting of fixed box (27) has control box (28), control box (28) front side fixed mounting has display screen (29), control box (28) front side fixed mounting has pilot lamp (30), pilot lamp (30) quantity is established to two, control box (28) internally mounted has the singlechip, singlechip input electric connection has the AD converter, singlechip output electric connection has the DA converter, first pressure sensor (17) and second pressure sensor (18) all with AD converter electric connection, pilot lamp (30) and DA converter electric connection, singlechip and display screen electric connection.
8. The lithium battery airtightness detection apparatus according to claim 1, wherein: the top end of the bottom cover plate (2) is fixedly connected with a sealing gasket (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022754135.0U CN214277325U (en) | 2020-11-25 | 2020-11-25 | Lithium battery air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022754135.0U CN214277325U (en) | 2020-11-25 | 2020-11-25 | Lithium battery air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214277325U true CN214277325U (en) | 2021-09-24 |
Family
ID=77776747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022754135.0U Expired - Fee Related CN214277325U (en) | 2020-11-25 | 2020-11-25 | Lithium battery air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214277325U (en) |
-
2020
- 2020-11-25 CN CN202022754135.0U patent/CN214277325U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |