CN108254137A - Battery case welding airtightness detection device and its detection method - Google Patents
Battery case welding airtightness detection device and its detection method Download PDFInfo
- Publication number
- CN108254137A CN108254137A CN201711489141.4A CN201711489141A CN108254137A CN 108254137 A CN108254137 A CN 108254137A CN 201711489141 A CN201711489141 A CN 201711489141A CN 108254137 A CN108254137 A CN 108254137A
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- Prior art keywords
- battery case
- bearing
- air
- pressure sensor
- detection
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention discloses battery case welding airtightness detection device, it includes being located at the monitor station in rack, monitor station is equipped with multiple detection stations, the surface of monitor station is equipped with resilient sleeper-bearing, battery case is placed on the resilient sleeper-bearing of corresponding detection station, the top of each detection station is equipped with stamping cylinder, battery case air-tightness is fastened on resilient sleeper-bearing by stamping cylinder when pushing, the resilient sleeper-bearing of each detection station is equipped with the pressurization tracheae and pressure sensor for being passed through battery case inner cavity, pressurization tracheae is used to be passed through compressed gas into battery case, pressure sensor is used to detect the air pressure of battery case inner cavity, the output terminal of pressure sensor is connected with display terminal.The present invention solves the airtight test problem of battery case, is suitble to batch detection, easy to operate, and quick to detect, judgement is accurate.
Description
Technical field
The present invention relates to the equipment more particularly to battery case welding airtightness detection dress that metal plate is stored in metal machining
It puts and its detection method.
Background technology
At present, the use of lithium ion battery is more and more extensive, it is known that in electric automobiles lithium ion battery with its body
Long-pending small, light-weight, environmentally protective the advantages of reusing, is gradually replacing the leading position of plumbic acid class nickel chromium triangle class battery.
Conventional batteries box is unsatisfactory for airtight requirement, but part electric vehicle particularly scooter battery case shell in the market
There is airtight requirement, especially need to meet airtight requirement in charge and discharge power port position.At present, more and more battery case shell designs
In, increase in overall structure to it is airtight the considerations of, the housing after optimization design is required to meet airtight requirement.But for shell
The detection method of the airtight requirement of body never has good method.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide battery case welding airtightness detection device and its inspections
Survey method.
The technical solution adopted by the present invention is：
Battery case welding airtightness detection device, including the monitor station being located in rack, monitor station is equipped with multiple detection works
Position, the surface of monitor station are equipped with resilient sleeper-bearing, and battery case is placed on the resilient sleeper-bearing of corresponding detection station, each detection station
Top be equipped with stamping cylinder, stamping cylinder push when battery case air-tightness is fastened on resilient sleeper-bearing, each detection station
Resilient sleeper-bearing be equipped with and be passed through the pressurization tracheae and pressure sensor of battery case inner cavity, pressurization tracheae is used to lead into battery case
Enter compressed gas, pressure sensor is used to detect the air pressure of battery case inner cavity, and the output terminal of pressure sensor is connected with display eventually
End.
Further, 4 stamping cylinders are fixed in each detection station, 4 stamping cylinders correspond to battery case
Four corner settings.
Further, the resilient sleeper-bearing is foam-rubber cushion.
Further, the invention also includes seal plug, seal plug is used to be sealed the through-hole that battery case opens up
It blocks.
Battery case welding airtightness detection method employs above-mentioned battery case welding airtightness detection device, detection method
Include the following steps：
Step 1, battery case is put into detection station；
Step 2, starting switch ejects stamping cylinder piston rod, the opening of battery case under the action of stamping cylinder with elasticity
Backing plate closely connects；
Step 3, the upper trepanning of battery case is blocked using seal plug,
Step 4, it is inflated by the tracheae that pressurizes to battery case inner cavity, when the acquisition pressure reading of pressure sensor reaches 10Kpa,
Terminate inflation；
Step 5, after keeping and waiting for 30s, the pressure reading of pressure sensor is read；When pressure reading is not less than in battery case
5Kpa then judges battery case air-leakage test qualification, and cylinder resets；When pressure reading is less than 3Kpa in battery case after 30s, then
Judge that battery case air-leakage test is unqualified, cylinder resets and sends out alarm；
Step 6, to air-leakage test, underproof battery case repeats step 2-5 and tests 2 times or more for the first time, when battery case gas twice
When close property detects unqualified, then judge that the final air-leakage test of battery case is unqualified.
During waiting for 30s in step 5, suds are applied to each weld of battery case；Observe each weld
Suds whether bubble；When weld has bubble to rise, then the battery case air-leakage test is unqualified；Otherwise, it further sees
Examine the pressure reading of pressure sensor.
The present invention is using above technical scheme, and battery case to be detected is placed in the corresponding detection station of monitor station, battery case
Open face be fastened on resilient sleeper-bearing, control stamping cylinder pushes, and battery case closely fastens under the action of stamping cylinder
On resilient sleeper-bearing, the setting of resilient sleeper-bearing, battery case open face air-tightness requirement when ensure that detection.It and will be on battery case
The through-hole opened up is stoppered using seal plug.After being ready to complete, by pressurizeing, tracheae is passed through compressed gas to battery case inner cavity
Body.Terminate to inflate when the pressure reading of pressure sensor reaches 10Kpa.Wait for 30 seconds after, then by display terminal check by
The atmospheric pressure value that pressure sensor is read, if pressure reading variable quantity is in permissible range, the air-leakage test qualification of the battery case.
If pressure reading variable quantity is more than permissible range, the air-leakage test of the battery case is unqualified.In addition, in 30 seconds waiting times
Inspector further can smear suds further to detect battery case air-tightness, dual airtight detection in the weld of battery case
It is more accurate.The present invention solves the airtight test problem of battery case, is suitble to batch detection, easy to operate, quick to detect, judgement
Accurately.
Description of the drawings
The present invention is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is one of structure diagram of battery case welding airtightness detection device of the present invention；
Fig. 2 is the second structural representation of battery case welding airtightness detection device of the present invention.
Specific embodiment
As shown in Fig. 1 or one of 2, the invention discloses battery case welding airtightness detection device, including being located at rack 1
On monitor station 2, monitor station 2 is equipped with multiple detection stations, and the surface of monitor station 2 is equipped with resilient sleeper-bearing 3, and battery case 4 is placed
On the resilient sleeper-bearing 3 of corresponding detection station, the top of each detection station is equipped with stamping cylinder 5, will when stamping cylinder 5 pushes
4 air-tightness of battery case is fastened on resilient sleeper-bearing 3, and the resilient sleeper-bearing 3 of each detection station, which is equipped with, is passed through 4 inner cavity of battery case
Pressurize tracheae 6 and pressure sensor 7, and for being passed through compressed gas into battery case 4, pressure sensor 7 is used to examine pressurization tracheae 6
The air pressure of 4 inner cavity of battery case is surveyed, the output terminal of pressure sensor 7 is connected with display terminal 8.
Further, 4 stamping cylinders, 5,4 stamping cylinders 5 are fixed in each detection station and correspond to battery case 4
Four corners setting.
Further, the resilient sleeper-bearing 3 is foam-rubber cushion.
Further, the invention also includes seal plug 9, seal plug 9 is used to carry out the through-hole that battery case 4 opens up close
Block plug.
4 welding airtightness detection method of battery case employs above-mentioned 4 welding airtightness detection device of battery case, detection side
Method includes the following steps：
Step 1, battery case 4 is put into detection station；
Step 2, starting switch ejects 5 piston rod of stamping cylinder, the opening of battery case 4 under the action of stamping cylinder 5 with
Resilient sleeper-bearing 3 closely connects；
Step 3, the upper trepanning of battery case 4 is blocked using seal plug 9,
Step 4, it is inflated by the tracheae 6 that pressurizes to 4 inner cavity of battery case, when the acquisition pressure reading of pressure sensor 7 reaches 10Kpa
When, terminate inflation；
Step 5, after keeping and waiting for 30s, the pressure reading of pressure sensor 7 is read；When pressure reading is not less than in battery case 4
5Kpa then judges 4 air-leakage test of battery case qualification, and cylinder resets；When pressure reading is less than 3Kpa in battery case 4 after 30s,
Then judge that 4 air-leakage test of battery case is unqualified, cylinder resets and sends out alarm；
Step 6, to air-leakage test, underproof battery case 4 repeats step 2-5 and tests 2 times or more for the first time, when battery case 4 twice
When air-leakage test is unqualified, then judge that 4 final air-leakage test of battery case is unqualified.
During waiting for 30s in step 5, suds are applied to each weld of battery case 4；Observe each weld
Suds whether bubble；When weld has bubble to rise, then 4 air-leakage test of battery case is unqualified；Otherwise, it further sees
Examine the pressure reading of pressure sensor 7.
The present invention is placed using above technical scheme, battery case 4 to be detected in 2 corresponding detection station of monitor station, battery
The open face of box 4 is fastened on resilient sleeper-bearing 3, and control stamping cylinder 5 pushes, and battery case 4 is tight under the action of stamping cylinder 5
It is close to be fastened on resilient sleeper-bearing 3, the setting of resilient sleeper-bearing 3,4 open face air-tightness of battery case requirement when ensure that detection.And
The through-hole opened up on battery case 4 is stoppered using seal plug 9.After being ready to complete, by the tracheae 6 that pressurizes to battery case 4
Inner cavity is passed through compressed gas.Terminate to inflate when the pressure reading of pressure sensor 7 reaches 10Kpa.After waiting for 30 seconds, then pass through
Display terminal 8 checks the atmospheric pressure value read by pressure sensor 7, if pressure reading variable quantity is in permissible range, the battery case 4
Air-leakage test it is qualified.If pressure reading variable quantity is more than permissible range, the air-leakage test of the battery case 4 is unqualified.
In addition, further suds can be smeared in the weld of battery case 4 further to detect battery in 30 seconds waiting time inspectors
4 air-tightness of box, dual airtight detection are more accurate.The present invention solves the airtight test problem of battery case 4, and batch is suitble to examine
It surveys, easy to operate, quick to detect, judgement is accurate.
Claims (6)
1. battery case welding airtightness detection device, it is characterised in that：It includes being located at the monitor station in rack, is set on monitor station
There are multiple detection stations, the surface of monitor station is equipped with resilient sleeper-bearing, and battery case is placed on the resilient sleeper-bearing of corresponding detection station,
The top of each detection station is equipped with stamping cylinder, and battery case air-tightness is fastened on resilient sleeper-bearing by stamping cylinder when pushing,
The resilient sleeper-bearing of each detection station is equipped with the pressurization tracheae and pressure sensor for being passed through battery case inner cavity, and pressurization tracheae is used for
Compressed gas is passed through into battery case, pressure sensor is used to detect the air pressure of battery case inner cavity, the output terminal of pressure sensor
It is connected with display terminal.
2. battery case welding airtightness detection device according to claim 1, it is characterised in that：Each detection station
On be fixed with 4 stamping cylinders, 4 stamping cylinders correspond to four corners setting of battery case.
3. battery case welding airtightness detection device according to claim 1, it is characterised in that：The resilient sleeper-bearing is sea
Silk floss pad.
4. battery case welding airtightness detection device according to claim 1, it is characterised in that：It further includes seal plug
Head, seal plug are used to be sealed blocking to the through-hole that battery case opens up.
5. battery case welding airtightness detection method employs the battery case welding airtightness inspection described in one of Claims 1-4
Survey device, it is characterised in that：Detection method includes the following steps：
Step 1, battery case is put into detection station；
Step 2, starting switch ejects stamping cylinder piston rod, the opening of battery case under the action of stamping cylinder with elasticity
Backing plate closely connects；
Step 3, the upper trepanning of battery case is blocked using seal plug,
Step 4, it is inflated by the tracheae that pressurizes to battery case inner cavity, when the acquisition pressure reading of pressure sensor reaches 10Kpa,
Terminate inflation；
Step 5, after keeping and waiting for 30s, the pressure reading of pressure sensor is read；When pressure reading is not less than in battery case
5Kpa then judges battery case air-leakage test qualification, and cylinder resets；When pressure reading is less than 3Kpa in battery case after 30s, then
Judge that battery case air-leakage test is unqualified, cylinder resets and sends out alarm；
Step 6, to air-leakage test, underproof battery case repeats step 2-5 and tests 2 times or more for the first time, when battery case gas twice
When close property detects unqualified, then judge that the final air-leakage test of battery case is unqualified.
6. battery case welding airtightness detection method according to claim 5, it is characterised in that：The 30s phases are waited in step 5
Between, suds are applied to each weld of battery case；Observe each weld suds whether bubble；Work as weld
There is bubble to rise, then the battery case air-leakage test is unqualified；Otherwise, the pressure reading of pressure sensor is further looked at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489141.4A CN108254137A (en) | 2017-12-29 | 2017-12-29 | Battery case welding airtightness detection device and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489141.4A CN108254137A (en) | 2017-12-29 | 2017-12-29 | Battery case welding airtightness detection device and its detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108254137A true CN108254137A (en) | 2018-07-06 |
Family
ID=62725290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711489141.4A Pending CN108254137A (en) | 2017-12-29 | 2017-12-29 | Battery case welding airtightness detection device and its detection method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017954A (en) * | 2019-01-18 | 2019-07-16 | 德玛克（长兴）自动化系统有限公司 | A kind of battery case detection of negative pressure equipment and its detection method |
| CN111678656A (en) * | 2020-06-05 | 2020-09-18 | 哈尔滨锅炉厂有限责任公司 | Sealing detection method of multi-pass heat exchanger |
| CN112964993A (en) * | 2019-12-14 | 2021-06-15 | 中国科学院大连化学物理研究所 | Single cell detection device and detection method for fuel cell stack |
| CN113340537A (en) * | 2021-04-26 | 2021-09-03 | 江苏海天微电子股份有限公司 | Leakproofness detection mechanism for photovoltaic terminal box |
| CN117358837A (en) * | 2023-12-05 | 2024-01-09 | 新乡市正元电子材料有限公司 | Stamping forming die for large-diameter battery steel shell |
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| CN113340537A (en) * | 2021-04-26 | 2021-09-03 | 江苏海天微电子股份有限公司 | Leakproofness detection mechanism for photovoltaic terminal box |
| CN117358837A (en) * | 2023-12-05 | 2024-01-09 | 新乡市正元电子材料有限公司 | Stamping forming die for large-diameter battery steel shell |
| CN117358837B (en) * | 2023-12-05 | 2024-03-12 | 新乡市正元电子材料有限公司 | Stamping forming die for large-diameter battery steel shell |
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Application publication date: 20180706 |