CN107664605A - A kind of detection device of lithium battery pack shell - Google Patents
A kind of detection device of lithium battery pack shell Download PDFInfo
- Publication number
- CN107664605A CN107664605A CN201710821003.5A CN201710821003A CN107664605A CN 107664605 A CN107664605 A CN 107664605A CN 201710821003 A CN201710821003 A CN 201710821003A CN 107664605 A CN107664605 A CN 107664605A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- battery pack
- testing agency
- detection device
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 88
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000012360 testing method Methods 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000003028 elevating effect Effects 0.000 claims description 12
- 230000000740 bleeding effect Effects 0.000 claims description 11
- 230000001953 sensory effect Effects 0.000 claims description 10
- 230000006837 decompression Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
Abstract
The invention provides a kind of detection device of lithium battery pack shell, including：Casing, built-in sealing space；Testing agency, it is installed in sealing space, wherein, one end of testing agency is connected with air pump, and lithium battery is placed in the other end of testing agency.A kind of detection device of lithium battery pack shell provided by the invention, lithium battery is positioned in a sealing space, and positioned at one end of testing agency, compressed gas is conveyed by air pump, then lithium battery pressure release gas leakage is simulated toward pressurising in battery bag by testing agency, within the 30s times, pressure inside lithium battery pack is reduced to 70KPa by 2070KPa, check whether li battery shell surface ruptures, so as to quickly judge whether the lithium battery is qualified products, in addition, lithium battery is positioned in sealing space, even if li battery shell ruptures, cause hydrogen leak, and then simulating hydrogen leak causes battery bag to be exploded.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of detection device, particularly a kind of detection of lithium battery pack shell
Equipment.
Background technology
Lithium battery has a wide range of applications, either in domestic electric appliance field or work as new cleaning fuel
Industry processing equipment field, but lithium battery pack is during much time using, easily occurs internal gas leakage phenomenon, and lithium
The gas typically filled in battery is hydrogen, and when the hydrogen of leakage reaches certain numerical value, lithium battery pack will explode,
So as to which the shell of lithium battery pack be burst, and then trigger safety problem, therefore, before lithium battery dispatches from the factory, it is necessary to lithium battery
The compression situation of incrustation carries out necessary detection, to ensure security that lithium battery uses.
In summary, it is necessary to design a kind of compression situation that can accurately and fast detect lithium battery pack shell, lithium electricity is improved
The detection device of pond bag safety in utilization.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that one kind can be detected accurately and fast
The compression situation of lithium battery pack shell, improve the detection device of lithium battery safety in utilization.
The purpose of the present invention can be realized by following technical proposal：A kind of detection device of lithium battery pack shell, including：
Casing, built-in sealing space；Testing agency, it is installed in sealing space, wherein, one end of testing agency is connected with air pump, will
Lithium battery pack is placed in the other end of testing agency, and by air pump to compressed gas is filled in testing agency, then testing agency is past
Lithium battery pressure release gas leakage is simulated in pressurising in battery bag, and within the 30s times, the pressure inside lithium battery pack is reduced to by 2070KPa
70KPa, and check whether lithium battery pack appearance ruptures, and this judges whether lithium battery is qualified products.
In a kind of detection device of above-mentioned lithium battery pack shell, detection device includes operating mechanism, is installed on casing
On, and electrically connected with testing agency, control the pressure of lithium battery pack case surface and the time of decompression.
In a kind of detection device of above-mentioned lithium battery pack shell, the mode of operation of operating mechanism be divided into it is manually operated with
It is automatically brought into operation.
In a kind of detection device of above-mentioned lithium battery pack shell, testing agency is set with air pump two-piece unit.
In a kind of detection device of above-mentioned lithium battery pack shell, detection device also includes elevating lever, and positioned at sealing
In space, and elevating lever is detachably connected with testing agency.
It is nested encryptions in a kind of detection device of above-mentioned lithium battery pack shell, between testing agency and elevating lever,
And it is locked by threaded fastener.
In a kind of detection device of above-mentioned lithium battery pack shell, testing agency includes pressurising cylinder body and bleeds off pressure cylinder body,
Wherein, pressurising cylinder body and bleeding off pressure is connected by the first valve body between cylinder body, and pressurising cylinder body passes through the second valve body, pipeline and air pump phase
Even.
In a kind of detection device of above-mentioned lithium battery pack shell, testing agency also includes sensory package, is installed on cylinder
On body, and electrically connected with operating mechanism, to detect pressurising cylinder body and bleed off pressure the pressure value in cylinder body, and by the numeric feedback
To operating mechanism.
In a kind of detection device of above-mentioned lithium battery pack shell, sensory package includes first sensor and the second sensing
Device, wherein, first sensor is installed on pressurising cylinder body, and second sensor, which is installed on, to be bled off pressure on cylinder body.
Compared with prior art, the detection device of a kind of lithium battery pack shell provided by the invention, lithium battery is positioned over
In one sealing space, and positioned at one end of testing agency, compressed gas is conveyed by air pump, then testing agency is toward battery bag
Lithium battery pressure release gas leakage is simulated in interior pressurising, and within the 30s times, the pressure inside lithium battery pack is reduced to 70KPa by 2070KPa,
Check whether lithium battery pack case surface ruptures, so as to quickly judge whether the lithium battery is qualified products, separately
Outside, lithium battery is positioned in sealing space, even if lithium battery pack shell ruptures, causes hydrogen leak, and then simulate hydrogen
Gas leakage causes battery bag to be exploded, and certain hazard to person will not be also caused to testing staff, improves the peace of lithium battery detection
Quan Xing.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the detection device of lithium battery pack shell of the present invention.
Fig. 2 is a kind of structural representation at another visual angle of detection device of lithium battery pack shell of the present invention.
In figure, 100, casing；110th, sealing space；111st, bottom plate；200th, testing agency；210th, pressurising cylinder body；220th, put
Cylinder pressure body；230th, the first valve body；240th, the second valve body；250th, sensory package；251st, first sensor；252nd, second sensor；
300th, air pump；400th, operating mechanism；410th, power key；420th, selection key；430th, pressurising key；440th, pressure display screen；When the 450th,
Between shield；460th, key is bled off pressure；470th, automatic key；480th, stop key；500th, elevating lever.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, the detection device of a kind of lithium battery pack shell provided by the invention, including：Casing 100, it is interior
Put sealing space 110；Testing agency 200, it is installed in sealing space 110, wherein, one end and the air pump 300 of testing agency 200
It is connected, detected lithium battery is placed in the other end of testing agency 200, by air pump 300 to filling pressure in testing agency 200
Contracting gas is filled with lithium battery pack to certain pressure intensity, and by the compressed air, by one section of short period, the drop of pressure to certain
Individual numerical value, if now lithium battery pack shell does not rupture, the lithium battery is judged for qualified products, conversely, then judging to be somebody's turn to do
Lithium battery is substandard product, it is further preferred that when air pump 300 is to filling compressed gas in testing agency 200, is reached
Pressure be 2070KPa, then drop to some numerical value, the numerical value is 70KPa, wherein by one shorter time, at that time
Between be 30s, i.e. the lithium battery pack shell on the one end of testing agency 200, in 30s, the pressure on its surface is dropped by 2070KPa
For as little as 70KPa without rupturing, it is qualified products to show the lithium battery.
A kind of detection device of lithium battery pack shell provided by the invention, lithium battery is positioned over a sealing space 110
In, and positioned at one end of testing agency 200, compressed gas is conveyed by air pump 300, then testing agency is toward pressurising in battery bag
Lithium battery pressure release gas leakage is simulated, within the 30s times, the pressure inside lithium battery pack is reduced to 70KPa by 2070KPa, checks lithium
Whether battery pack case surface ruptures, so as to quickly judge whether the lithium battery is qualified products, in addition, by lithium
Battery is positioned in sealing space 110, even if lithium battery pack shell ruptures, causes hydrogen leak, and then is exploded,
Certain hazard to person will not be caused to testing staff, improves the security of lithium battery detection.
Preferably, as depicted in figs. 1 and 2, detection device includes operating mechanism 400, is installed on casing 100, and with inspection
Survey mechanism 200 to electrically connect, control the pressure of lithium battery pack case surface and the time of decompression, it is further preferred that operation machine
It is manual mode that structure 400, which is divided to for two kinds of operation techniques, one, secondly be automated manner, wherein, the operation principle of manual mode
For：Press power key 410 first, connect detection device, selection key 420 is then dialed into manual gear, (its mode of stirring can be with
Stirred for rotary dial, or formula of vacillating now to the left, now to the right), then press pressurising key 430, open air pump 300, and to testing agency 200
Middle charged air pressure, when the data on the pressure display screen 440 corresponding with pressurising key 430 reach 2070KPa, stop filling
Pressure；It is 30s finally to open count down time screen 450, and presses and bleed off pressure key 460, after 30s, the pressure corresponding with bleeding off pressure key 460
Data on display screen 440 are 70KPa, stop bleeding off pressure, and complete the detection process of lithium battery pack shell.Wherein, automated manner
Operation principle：Power key 410 is pressed first, open detection equipment, selection key 420 is then dialed into automatic catch, then pressed
Automatic key 470, air pump 300 and the charged air pressure into testing agency 200 are opened, when the pressure corresponding with automatic key 470
Data on display screen 440 (being same display screen with the pressure display screen 440 corresponding to pressurising key 430) reach 2070KPa,
Automatic to close automatic key 470, it is 30s then to open count down time screen 450, when another (manual mode of pressure display screen 440
When, bleeding off pressure the pressure display screen 440 corresponding to key 460) display data when being 70KPa, presses stop key 480, complete lithium battery
The detection process of incrustation.
Preferably, as depicted in figs. 1 and 2, testing agency 200 is set with the two-piece unit of air pump 300 so that, testing agency
Sealing space 110 where 200 is a separate space, improves security when detection device detects to lithium battery pack shell
Higher sealing, in addition, the power supply of detection device is located in the same space with air pump 300, reduce the interior lines of sealing space 110
Road or the connecting line of gas circuit so that the structure of testing agency 200 becomes compact, neatly.
It is further preferred that as depicted in figs. 1 and 2, detection device also includes elevating lever 500, and is located at sealing space 110
It is interior, wherein, one end of elevating lever 500 is connected on the bottom plate 111 of sealing space 110, the other end and detection machine of elevating lever 500
Structure 200 is detachably connected, and realizes that testing agency 200 moves up and down along elevating lever 500, and it is empty apart from sealing to change testing agency 200
Between the distance between 110 bottom plates 111, so as to realize the detection of the lithium battery pack shell of different volumes, and then improve detection device
Flexibility.It is further preferred that being nested encryptions between testing agency 200 and elevating lever 500, and locked by threaded fastener
Fasten, when the distance between bottom plate 111 for needing adjustment testing agency 200 and sealing space 110, need to only unscrew tight
Firmware, change testing agency 200 and the relative distance of the end of elevating lever 500, when being adjusted to required height, tighten screw threads for fastening again
Part, it is simple to operate, maintenance conditions mechanism 200 is also allowed in addition.
Preferably, as depicted in figs. 1 and 2, testing agency 200 includes pressurising cylinder body 210 and bleeds off pressure cylinder body 220, wherein, fill
Cylinder pressure body 210 and bleeding off pressure is connected by the first valve body 230 between cylinder body 220, and pressurising cylinder body 210 passes through the second valve body 240, pipeline
It is connected with air pump 300.During pressurising, the second valve body 240 is in opening, and the first valve body 230 is closed, and opens air pump
300, the charged air pressure into pressurising cylinder body 210, when the pressure in pressurising cylinder body 210 reaches 2070KPa, close air pump
300 and second valve body 240 so that 2070KPa pressure is remained in pressurising cylinder body 210, when bleeding off pressure, opens the first valve body
230, the compressed air flow direction in pressurising cylinder body 210 is bled off pressure in cylinder body 220, until the pressure of lithium battery pack case surface is down to
During 70KPa, the second valve body 240 is closed, the pressurising of compressed air is completed and bleeds off pressure process.It is further preferred that the first valve body 230
The effect of switch valve is not only acted as with the second valve body 240, and plays a part of one-way flow, when preventing from bleeding off pressure, bleeds off pressure cylinder body
Compressed air in 220 is flowed backward in pressurising cylinder body 210, and during pressurising, the compressed air in pressurising cylinder body 210 passes through pipeline
Flow backwards to air pump 300, so as to the security for improving pressurising, bleeding off pressure, and then improve the detection of lithium battery pack shell accuracy and can
By property.
It is further preferred that as depicted in figs. 1 and 2, testing agency 200 also includes sensory package 250, is installed on cylinder body
On, and electrically connected with operating mechanism 400, to detect pressurising cylinder body 210 and bleed off pressure the pressure value in cylinder body 220, and should
Numeric feedback shows the numerical value by the pressure display screen 440 in operating mechanism 400 to operating mechanism 400, wherein, fill
Pressure value in cylinder pressure body 210 shown by sensory package 250 on the pressure display screen 440 corresponding with pressurising key 430,
The pressure value bled off pressure in cylinder body 220 is shown by sensory package 250 on the pressure display screen 440 corresponding with bleeding off pressure key 460
Show, between the two independently of each other and connect each other so that user can be expressly understood that test when, pressurising cylinder body 210 is with putting
Real-time pressure value in cylinder pressure body 220, and corresponding operation is made, it is convenient, reliable.It is further preferred that sensory package 250
Used sensor is pressure transducer.
It is further preferred that as depicted in figs. 1 and 2, sensory package 250 includes first sensor 251 and second sensor
252, wherein, first sensor 251 is installed on pressurising cylinder body 210, and second sensor 252, which is installed on, to be bled off pressure on cylinder body 220, is led to
Cross first sensor 251 and monitor pressure in pressurising cylinder body 210 in real time, monitoring bleeds off pressure cylinder body in real time by second sensor 252
Pressure in 220, during pressurising, both are independently arranged, non-interference；When bleeding off pressure, both collective effects, connect each other, improve
The intellectuality of detection device.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (9)
- A kind of 1. detection device of lithium battery pack shell, it is characterised in that including：Casing, built-in sealing space；Testing agency, It is installed in sealing space, wherein, one end of testing agency is connected with air pump, and lithium battery pack is placed in into the another of testing agency End, by air pump to compressed gas is filled in testing agency, then lithium battery pressure release is simulated toward pressurising in battery bag by testing agency Gas leakage, within the 30s times, the pressure inside lithium battery pack is reduced to 70KPa by 2070KPa, and checks that lithium battery pack appearance is No rupture, and thus judge whether lithium battery is qualified products.
- 2. the detection device of a kind of lithium battery pack shell according to claim 1, it is characterised in that detection device includes behaviour Make mechanism, be installed on casing, and electrically connected with testing agency, control lithium battery pack case surface pressure and decompression when Between.
- A kind of 3. detection device of lithium battery pack shell according to claim 2, it is characterised in that the operation of operating mechanism Mode is divided into manually operated with being automatically brought into operation.
- A kind of 4. detection device of lithium battery pack shell according to claim 1 or 2, it is characterised in that testing agency with Air pump two-piece unit is set.
- 5. the detection device of a kind of lithium battery pack shell according to claim 1 or 2, it is characterised in that detection device is also Including elevating lever, and in sealing space, and elevating lever is detachably connected with testing agency.
- 6. the detection device of a kind of lithium battery pack shell according to claim 5, it is characterised in that testing agency and lifting It is nested encryptions between bar, and is locked by threaded fastener.
- 7. the detection device of a kind of lithium battery pack shell according to claim 1 or 2, it is characterised in that testing agency wraps Include and pressurising cylinder body and bleed off pressure cylinder body, wherein, pressurising cylinder body and bleeding off pressure is connected by the first valve body between cylinder body, and pressurising cylinder body passes through Second valve body, pipeline are connected with air pump.
- 8. the detection device of a kind of lithium battery pack shell according to claim 7, it is characterised in that testing agency also includes Sensory package, it is installed on cylinder body, and is electrically connected with operating mechanism, detects pressurising cylinder body and bleed off pressure the pressure number in cylinder body Value, and by the numeric feedback to operating mechanism.
- 9. the detection device of a kind of lithium battery pack shell according to claim 8, it is characterised in that sensory package includes the One sensor and second sensor, wherein, first sensor is installed on pressurising cylinder body, and second sensor, which is installed on, bleeds off pressure cylinder body On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821003.5A CN107664605A (en) | 2017-09-13 | 2017-09-13 | A kind of detection device of lithium battery pack shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821003.5A CN107664605A (en) | 2017-09-13 | 2017-09-13 | A kind of detection device of lithium battery pack shell |
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| Publication Number | Publication Date |
|---|---|
| CN107664605A true CN107664605A (en) | 2018-02-06 |
Family
ID=61097429
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710821003.5A Pending CN107664605A (en) | 2017-09-13 | 2017-09-13 | A kind of detection device of lithium battery pack shell |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414257A (en) * | 2018-03-02 | 2018-08-17 | 北京空间技术研制试验中心 | A kind of precision of equipment installation measurement method for spacecraft |
| CN113405916A (en) * | 2021-06-23 | 2021-09-17 | 东莞理工学院 | Lithium cell automated production is with deformation detection mechanism that has multiaspect detection |
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| CN1773305A (en) * | 2004-11-14 | 2006-05-17 | 比亚迪股份有限公司 | Method and apparatus for testing battery safety performance |
| CN102116703A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院沈阳自动化研究所 | Air-tight cabin air filling and air tightness detecting device |
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| CN207197951U (en) * | 2017-09-13 | 2018-04-06 | 莱茵技术-商检（宁波）有限公司 | A kind of detection device of lithium battery pack shell |
-
2017
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|---|---|---|---|---|
| JPS62115652A (en) * | 1985-11-14 | 1987-05-27 | Japan Storage Battery Co Ltd | Sealed lead-acid battery |
| CN1773305A (en) * | 2004-11-14 | 2006-05-17 | 比亚迪股份有限公司 | Method and apparatus for testing battery safety performance |
| CN102116703A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院沈阳自动化研究所 | Air-tight cabin air filling and air tightness detecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414257A (en) * | 2018-03-02 | 2018-08-17 | 北京空间技术研制试验中心 | A kind of precision of equipment installation measurement method for spacecraft |
| CN113405916A (en) * | 2021-06-23 | 2021-09-17 | 东莞理工学院 | Lithium cell automated production is with deformation detection mechanism that has multiaspect detection |
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