CN208887863U - A kind of battery air tightness detecting tool - Google Patents
A kind of battery air tightness detecting tool Download PDFInfo
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- CN208887863U CN208887863U CN201821173514.7U CN201821173514U CN208887863U CN 208887863 U CN208887863 U CN 208887863U CN 201821173514 U CN201821173514 U CN 201821173514U CN 208887863 U CN208887863 U CN 208887863U
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Abstract
The utility model provides a kind of battery air tightness detecting tool, including clamp for detecting air tightness, the clamp for detecting air tightness includes that clamping end is arc-shaped fixed chuck and movable chuck, the radian of the movable chuck clamping end is greater than 180 °, and the sum of the circular arc behind the clamping end of movable chuck and the clamping end cooperation of fixed chuck is 360 °.The structure of the air-tightness detection tool is simple, and the service life is long, and the effect of fixed battery to be detected is good, and air-tightness is preferable when detection, and pressure is more stable, and detection efficiency significantly improves.
Description
Technical field
The utility model belongs to battery sealing-performance detection technique field, is related to a kind of battery air tightness detecting tool.
Background technique
Since lithium ion battery is commercialized by Sony for the first time since 1991, market scale from scratch, is had been developed as
It is only second to the second largest secondary cell product of lead-acid battery.With constantly improve for lithium ion battery technology, production capacity and shipment amount
Just in further expansion.In future, lithium ion battery is in electric tool, light electric vehicle, new-energy automobile and energy storage system
The application in equal fields will constantly expand, and further stimulate the market of lithium ion battery.
Technique control and quality monitoring in the production process of battery determine the quality of product, need suitable tooling
Come whether timing testing product air-tightness reaches related process requirement.If battery air tightness occurs abnormal, it is easy to generate matter
Hidden danger is measured, such as safety problem leakage, is got rusty, corrosion products electronic component, and battery pack cisco unity malfunction is even caused
So that whole group is scrapped etc..
Battery is fixed unstable when existing battery air tightness detecting tool has the following disadvantages: air-leakage test, easily slides；
Leakproofness is not good enough when air-leakage test, pressure transient；The more difficult drilling on battery of gas nozzle is aligned；Air-leakage test low efficiency
Under.
CN 207423470 discloses a kind of battery gas tightness detector, and battery case bottom is equipped with detection hole, battery gas
Close property detection device includes: tooling platform, and tooling platform is equipped with transfer port corresponding with the detection hole position of battery case；It clamps
Mechanism is located on tooling platform, for battery case to be clamped in tooling platform；Gas transmission system is located on tooling platform, and defeated
Stomata connection；Supervisory control desk is connect with gas transmission system signal.Further include: sealant, between tooling platform and battery case.
Gas transmission system includes: cylinder；And tracheae, the transfer port of cylinder and tooling platform is connected.But the structure of the detection device
It is more complex, it manufactures and is not easy to industrialize.
107894304 A of CN discloses a kind of new energy battery pack air-tightness detection tool, includes machine frame, described
Pedestal is provided on machine frame, base top surrounding edge raises upward；Stretching out to the left among chassis left side is side；The bottom
Seat top is located in the surrounding edge to raise upward the silicone sealing strip for having annular；Clamp system is distributed in pedestal surrounding；Pedestal
Side at be provided with inflating port；Limited position mechanism is set on the left of the side of the pedestal.But the air-tightness detection tool
Structure is still more complex.
Therefore, this field also needs the air-tightness detection device that a kind of structure is simple, detection effect is good and detection efficiency is high.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of battery air tightness to detect work
Dress, the structure of the air-tightness detection tool is simple, and the service life is long, and the effect of fixed battery to be detected is good, when detection air-tightness compared with
Good, pressure is more stable, and detection efficiency significantly improves.
For this purpose, the utility model uses following technical scheme:
A kind of battery air tightness detecting tool, including clamp for detecting air tightness, the clamp for detecting air tightness include clamping
End is arc-shaped fixed chuck and movable chuck, and the radian of the movable chuck clamping end is greater than 180 °, such as 210 °,
240 °, 270 °, 300 ° or 330 ° etc..The sum of circular arc behind the clamping end of movable chuck and the cooperation of the clamping end of fixed chuck is
360°。
When the radian of the movable chuck clamping end is greater than 180 °, the cylindrical battery on movable chuck is placed in movement
Collet and fixed chuck are not easy to roll along the direction perpendicular to central axis when cooperating, and the fixation convenient for battery to be detected is gentle
Mouth connects with the aperture on battery steel shell.
Multiple protrusions are arranged in the clamping end of the movable chuck, the multiple to refer at least two, such as 2,3,4,5
A, 6,7,8,9 or 10 etc..
Preferably, the protrusion is round and/or angular.The protrusion can also be other shapes, this field skill
Art personnel can select suitable shape according to actual needs.
Technical solution more preferably, the convex surfaces are provided with anti-slip layer.
Protrusion set by the clamping end of the utility model movable chuck and anti-slip layer, which can be firmly fixed, detects electricity
Pond, and structure is simple, is conducive to industrialized production manufacture.
The fixed chuck and movable chuck are cooperated by fast locking pin, and the number of the fast locking pin can be one
It is a or multiple, it is the multiple to refer at least two, such as 2,3,4,5,6,7 or 8.The fixation of general tooling
All selection screw rods are fixed, but screw thread is once had damage, or is got rusty, and fixed effect is just had a greatly reduced quality；Fast locking pin is simpler
It is single, quickly；And it is possible to prevente effectively from the phenomenon that causing screw rod fixation that can not carry out of being got rusty due to screw thread.
The fast locking pin can realize that the locking and release of fixed chuck and movable chuck, locking are fast by rotating knob
Speed, convenient disassembly improve the efficiency of fixed battery to be detected.
Those skilled in the art will be appreciated that, the clamp for detecting air tightness further includes shell, frame, push rod, gas nozzle and close
Packing；
Fixed chuck and movable chuck are all set in shell, and fixed chuck is located at the top of shell, and fixed chuck is also set
It is equipped with cavity, cavity is provided with air inlet and air outlet, and gas outlet is connected to gas nozzle；Movable chuck is located at the lower part of shell, moves
Dynamic collet is fixed in frame；Gasket is provided on gas nozzle；Push rod passes through shell and is fixed on movable chuck；Fast locking pin
It is set in shell, housing bottom position corresponding with fast locking pin is provided with hole.
The size of the gas nozzle is less than the size of battery drilling.
Those skilled in the art will be appreciated that the battery air tightness detecting tool further includes gas supply device, pressure tune
Regulating device, gas communication device and multiple switch valve, gas communication device one end are connect with gas supply device, the other end and at least one
A clamp for detecting air tightness connection, pressure-regulating device is set between clamp for detecting air tightness and gas supply device, described
Switch valve is respectively arranged between gas supply device and gas communication device between gas conduction device and clamp for detecting air tightness.
The gas supply device includes but is not limited to nitrogen cylinder, argon gas steel cylinder, helium steel cylinder or air compressor.
The gas supply device is from a wealth of sources, convenient for the industrial applications of the battery air tightness detecting tool.
Those skilled in the art will be appreciated that, the pressure-regulating device include but is not limited to pressure reducing valve, pneumatic type regulating valve,
Electric regulation valve, self-contained pressure regulator or solenoid valve, those skilled in the art can select suitable according to actual needs
Type.
The pressure-regulating device can guarantee that the pressure inside the battery air tightness detecting tool is constant, improve inspection
The stability of survey process is conducive to industrial applications convenient for operation.
Those skilled in the art will be appreciated that, the gas communication device be can make the pipeline of gas axially movable, including
But it is not limited to metal tube and/or non-metallic pipe.
The metal tube includes but is not limited to carbon steel pipe, 304 stainless steel tubes or 306 stainless steel tubes.
The non-metallic pipe includes but is not limited to pvc pipe, PE pipe or rubber tube.
The gas communication device can make gas in entire tooling internal circulation.
Those skilled in the art will be appreciated that the multiple switch valve includes but is not limited to ball valve, shut-off valve or gate valve, ability
Field technique personnel can select suitable type according to actual needs.
The switch valve is easy to operate, can guarantee to operate timely and gas on-demand supply.
The battery air tightness detecting tool further includes the intelligent digital controller being set on gas communication device, intelligent number
Aobvious controller is between clamp for detecting air tightness and gas supply device.
The intelligent digital system can monitor the loine pressure of the battery air tightness detecting tool.
The intelligent digital system can automatically adjust the pressure-regulating device according to setting value to guarantee the battery
The loine pressure of air-tightness detection tool is constant.
The airtightness test technology process of battery air tightness detecting tool provided by the utility model are as follows:
After being drilled on needing the cylindrical lithium battery for carrying out air-leakage test, by battery insertion air-leakage test folder
In the movable chuck of tool, then the gas nozzle in fixed chuck is corresponding with the aperture on battery steel shell to be detected, movable chuck and solid
Clamp head is cooperatively connected, and fixes battery to be detected, the air-tightness fixture fixed is put into sink later, then carries out gas
Air-leakage test can be rapidly completed in the conveying of body.
Compared with prior art, the utility model has the following beneficial effects:
Battery sealing-performance detecting tool structure provided by the utility model is simple, can firmly fix battery to be detected.
The efficiency of battery sealing-performance detecting tool detection battery provided by the utility model significantly improves, battery installation,
Stomata alignment and tooling set time can shorten 75%.
Good airproof performance when battery sealing-performance detecting tool air-leakage test provided by the utility model, pressure are stablized.
Battery sealing-performance detecting tool long service life provided by the utility model.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of battery air tightness detecting tool.
Fig. 2 is the main view under the non-clamp position of clamp for detecting air tightness.
Fig. 3 is the main view under clamp for detecting air tightness clamp position.
Fig. 4 is the cross-sectional view of the structure of fixed chuck in clamp for detecting air tightness.
Fig. 5 is the main view of fast locking pin.
Fig. 6 is schematic diagram when fast locking pin is inserted into fixed chuck, wherein arrow refers to the direction of pressing.
Fig. 7 is the schematic diagram that fast locking pin is inserted into after fixed chuck.
Wherein: 1, gas supply device；2, first switch valve；3, gas communication device；4, pressure-regulating device；5, second opens
Close valve；6, intelligent digital controller；7, the first rubber gas-guide tube；8, clamp for detecting air tightness；9, third switch valve；10, the 4th
Switch valve；11, the second rubber gas-guide tube；8-1, fixed chuck；8-2, gasket；8-3, gas nozzle；8-4, movable chuck；8-5, fastly
Fast locking pin；8-6, push rod；8-7, cavity；8-8, shell；8-9, frame；8-5-1, button；8-5-2, knob；8-5-3, pin
Body；8-5-4, ball.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
A kind of battery air tightness detecting tool, structural schematic diagram is as shown in Figure 1, the tooling includes air-leakage test folder
Tool 8, gas supply device 1, pressure-regulating device 4, gas communication device 3, the first rubber gas-guide tube 7, the second rubber gas-guide tube 11,
Intelligent digital controller 6, first switch valve 2, second switch valve 5, third switch valve 9 and the 4th switch valve 10；
The gas supply device 1 includes nitrogen cylinder；Pressure-regulating device 4 includes solenoid valve；Gas communication device 3 is
304 stainless steel tubes；First switch valve 2 is needle valve；Second switch valve 5 is pressure reducing valve；Third switch valve 9 is ball valve；4th opens
Pass valve 10 is ball valve；
The first switch valve 2 is located at the top of gas supply device 1, is connected with gas communication device 3, control gas supply
Connection between device 1 and gas communication device 3；On gas communication device 3 apart from gas supply device 1 from closely to far be sequentially connected for
Second switch valve 5, pressure-regulating device 4, the second rubber gas-guide tube 11, the first rubber gas-guide tube 7 and the 4th switch valve 10；Second
11 one end of rubber gas-guide tube is connect with gas communication device 3, and the other end is connect with intelligent digital controller 6；First rubber gas-guide tube 7
One end is connect with gas communication device 3, and the other end is connect with clamp for detecting air tightness 8；Clamp for detecting air tightness 8 and gas communication device
Third switch valve 9 is provided between 3；
The clamp for detecting air tightness 8 such as Fig. 2 (wherein, one end of fast locking pin is located in fixed chuck, does not extend out)
With shown in Fig. 3, including shell 8-8, frame 8-9, fixed chuck 8-1, movable chuck 8-4, push rod 8-6 and fast locking pin 8-5；
Movable chuck 8-4 and fixed chuck 8-1 are all set in shell 8-8；Movable chuck 8-4 is located at the lower part shell 8-8, clamping end
Radian be 300 °, and the clamping end is provided with 6 circular protrusions, and each convex surfaces are provided with anti-slip layer；Movable chuck
8-4 is fixed on inside frame 8-9, and push rod 8-6 passes through shell 8-8 and is fixed on the lower part movable chuck 8-4；Fixed chuck 8-1 is located at
The top shell 8-8, the radian of clamping end are 60 °；Gas nozzle 8-3 protrudes from the lower part of fixed chuck 8-1, with fast locking pin 8-
5 axial directions are parallel, and gas nozzle 8-3 is arranged with gasket 8-2；The quantity of fast locking pin 8-5 is 2, movable chuck 8-4 and solid
Clamp head 8-1 is provided with corresponding hole, and the one end fast locking pin 8-5 is arranged between movable chuck 8-4 and frame 8-9, another
End sequentially passes through the hole on movable chuck 8-4 and fixed chuck 8-1, and movable chuck 8-4 and fixed chuck 8-1 are fixed；It is fixed
Collet 8-1 (its sectional view is as shown in Figure 4) is internally provided with cavity 8-7, and the top cavity 8-7 is air inlet, air inlet and first
Rubber gas-guide tube 7 connects, and the lower part cavity 8-7 is gas outlet, and gas outlet is connect with gas nozzle 8-3.
The tooling is used for operating procedure when detection cylinder type lithium ion battery airtightness are as follows:
(1) all valves of air-tightness detection tool are first closed, including first switch valve 2, second switch valve 5, third are opened
Close valve 9, the 4th switch valve 10 and pressure-regulating device 4；
(2) aperture is made a call on lithium ion battery steel shell to be detected, is later mounted on lithium ion battery and its specification
On matched clamp for detecting air tightness 8, push rod 8-6 is pushed, by gas nozzle 8-3 through utilizing in aperture insertion lithium ion battery steel shell
Gasket 8-2 sealing, and clamp the clamping end of fixed chuck 8-1 and movable chuck 8-4 by lithium ion battery to be detected；
(3) the button 8-5-1 for pressing fast locking pin 8-5 (its structural schematic diagram is as shown in Figure 5) end, by ball 8-5-
Shank 8-5-3 after 4 retractions is (as shown in Figure 6) across corresponding hole on fixed chuck 8-1, and release button 8-5-1 makes ball 8-
5-4 pops up (as shown in Figure 7), and then rotating knob 8-5-2 locks movable chuck 8-4 and fixed chuck 8-1；
(4) clamp for detecting air tightness 8 is put into the container for filling water, guarantees that the water surface floods lithium ion battery steel completely
Shell；
(5) first switch valve 2 and second switch valve 5 are opened, sets the work pressure in pipeline in intelligent digital controller 6
Power, so that intelligent digital controller 6 is adjusted pressure-regulating device 4 makes manifold pressure reach technique requirement standard；
(6) third switch valve 9 is slowly opened, whether observation steel shell seal location has bubble to emerge, judge to seal with this
Whether the air-tightness of process is up to standard；
(7) after the completion of testing, first switch valve 2 is closed, then slowly opens the 4th switch valve 10 and detects battery air tightness
The nitrogen purge of tooling internal residual.
Embodiment 2
A kind of battery air tightness detecting tool, the tooling include clamp for detecting air tightness 8, gas supply device 1, pressure
Regulating device 4, gas communication device 3, the first rubber gas-guide tube 7, the second rubber gas-guide tube 11, intelligent digital controller 6 and first
Switch valve 2, second switch valve 5, third switch valve 9 and the 4th switch valve 10；
Wherein, gas supply device 1 includes helium steel cylinder；Pressure-regulating device 4 includes electric regulation valve；Gas communication
Device 3 is pvc pipe；First switch valve 2 is needle valve；Second switch valve 5 is pressure reducing valve；Third switch valve 9 is needle valve；4th opens
Pass valve 10 is ball valve；
Wherein first switch valve 2 is located at the top of gas supply device 1, is connected with gas communication device 3, control gas supply
Connection between device 1 and gas communication device 3；On gas communication device 3 apart from gas supply device 1 from closely to far be sequentially connected for
Second switch valve 5, pressure-regulating device 4, the second rubber gas-guide tube 11, the first rubber gas-guide tube 7 and the 4th switch valve 10；Second
11 one end of rubber gas-guide tube is connect with gas communication device 3, and the other end is connect with intelligent digital controller 6；First rubber gas-guide tube 7
One end is connect with gas communication device 3, and the other end is connect with clamp for detecting air tightness 8；Clamp for detecting air tightness 8 and gas communication device
Third switch valve 9 is provided between 3；
The structure of clamp for detecting air tightness 8.Wherein clamp for detecting air tightness 8 includes shell 8-8, fixed chuck 8-1, movement
Collet 8-4, push rod 8-6 and fast locking pin 8-5；Movable chuck 8-4 and fixed chuck 8-1 are all set in shell 8-8；It is mobile
Collet 8-4 is located at the lower part shell 8-8, and the radian of clamping end is 240 °；Movable chuck 8-4 is fixed on inside frame 8-9, push rod
8-6 passes through shell 8-8 and is fixed on the lower part movable chuck 8-4；Fixed chuck 8-1 is located at the top shell 8-8, the radian of clamping end
It is 120 °；Gas nozzle 8-3 protrudes from the lower part of fixed chuck 8-1, parallel with fast locking pin 8-5 axial direction, and gas nozzle 8-3 is arranged
There is gasket 8-2；The quantity of fast locking pin 8-5 is 4, and between movable chuck 8-4 and frame 8-9, shank 8-5-3 hangs down
Directly it is inserted into the corresponding hole fixed chuck 8-1 in fixed chuck 8-1 and the contact surface of movable chuck 8-4；In fixed chuck 8-1
Portion is provided with cavity 8-7, and the top cavity 8-7 is air inlet, and air inlet is connect with the first rubber gas-guide tube 7, and the lower part cavity 8-7 is
Gas outlet, gas outlet are connect with gas nozzle 8-3.
The tooling is used for operating procedure when detection cylinder type lithium ion battery airtightness are as follows:
(1) all valves of air-tightness detection tool are first closed, including first switch valve 2, second switch valve 5, third are opened
Close valve 9, the 4th switch valve 10 and pressure-regulating device 4；
(2) aperture is made a call on lithium ion battery steel shell to be detected, is later mounted on lithium ion battery and its specification
On matched clamp for detecting air tightness 8, push rod 8-6 is pushed, by gas nozzle 8-3 through utilizing in aperture insertion lithium ion battery steel shell
Gasket 8-2 sealing, and clamp the clamping end of fixed chuck 8-1 and movable chuck 8-4 by lithium ion battery to be detected；
(3) the button 8-5-1 for pressing the end fast locking pin 8-5, the shank 8-5-3 after ball 8-5-4 is retracted are passed through
Corresponding hole on fixed chuck 8-1, release button 8-5-1 pop up ball 8-5-4, and then rotating knob 8-5-2 makes mobile folder
Head 8-4 and fixed chuck 8-1 locking；
(4) clamp for detecting air tightness 8 is put into the container for filling water, guarantees that the water surface floods lithium ion battery steel completely
Shell；
(5) first switch valve 2 and second switch valve 5 are opened, sets the work pressure in pipeline in intelligent digital controller 6
Power, so that intelligent digital controller 6 is adjusted pressure-regulating device 4 makes manifold pressure reach technique requirement standard；
(6) third switch valve 9 is slowly opened, whether observation steel shell seal location has bubble to emerge, judge to seal with this
Whether the air-tightness of process is up to standard；
(7) after the completion of testing, first switch valve 2 is closed, then slowly opens the 4th switch valve 10 and detects battery air tightness
The helium of tooling internal residual empties.
Embodiment 3
A kind of battery air tightness detecting tool, the tooling include clamp for detecting air tightness 8, gas supply device 1, pressure
Regulating device 4, gas communication device 3, the first rubber gas-guide tube 7, the second rubber gas-guide tube 11, intelligent digital controller 6 and first
Switch valve 2, second switch valve 5, third switch valve 9 and the 4th switch valve 10；
Gas supply device 1 includes nitrogen cylinder；Pressure-regulating device 4 includes solenoid valve；Gas communication device 3 is not 304 not
Become rusty steel pipe；First switch valve 2 is needle valve；Second switch valve 5 is pressure reducing valve；Third switch valve 9 is ball valve；4th switch valve 10
For ball valve；
Wherein first switch valve 2 is located at the top of gas supply device 1, is connected with gas communication device 3, control gas supply
Connection between device 1 and gas communication device 3；On gas communication device 3 apart from gas supply device 1 from closely to far be sequentially connected for
Second switch valve 5, pressure-regulating device 4, the second rubber gas-guide tube 11, the first rubber gas-guide tube 7 and the 4th switch valve 10；Second
11 one end of rubber gas-guide tube is connect with gas communication device 3, and the other end is connect with intelligent digital controller 6；First rubber gas-guide tube 7
One end is connect with gas communication device 3, and the other end is connect with clamp for detecting air tightness 8；Clamp for detecting air tightness 8 and gas communication device
Third switch valve 9 is provided between 3；
The structure of clamp for detecting air tightness 8.Wherein clamp for detecting air tightness 8 includes shell 8-8, fixed chuck 8-1, movement
Collet 8-4, push rod 8-6 and bolt；Movable chuck 8-4 and fixed chuck 8-1 are all set in shell 8-8；Movable chuck 8-4
In the lower part shell 8-8, the radian of clamping end is 300 °, and the clamping end is provided with 2 circular protrusions, each convex surfaces
It is provided with anti-slip layer；Movable chuck 8-4 is fixed on inside frame 8-9, and push rod 8-6 passes through shell 8-8 and is fixed on movable chuck 8-4
Lower part；Fixed chuck 8-1 is located at the top shell 8-8, and the radian of clamping end is 60 °；Gas nozzle 8-3 protrudes from fixed chuck 8-1
Lower part, parallel with the axial direction of bolt, gas nozzle 8-3 is arranged with gasket 8-2；The quantity of bolt is 6, is located at mobile folder
Between head 8-4 and frame 8-9, screw rod passes through fixed chuck 8-1 perpendicular to the contact surface of fixed chuck 8-1 and movable chuck 8-4
Corresponding hole, and fixed with matched nut；Fixed chuck 8-1 is internally provided with cavity 8-7, and the top cavity 8-7 is air inlet,
Air inlet is connect with the first rubber gas-guide tube 7, and the lower part cavity 8-7 is gas outlet, and gas outlet is connect with gas nozzle 8-3.
The tooling is used for operating procedure when detection cylinder type lithium ion battery airtightness are as follows:
(1) all valves of air-tightness detection tool are first closed, including first switch valve 2, second switch valve 5, third are opened
Close valve 9, the 4th switch valve 10 and pressure-regulating device 4；
(2) aperture is made a call on lithium ion battery steel shell to be detected, is later mounted on lithium ion battery and its specification
On matched clamp for detecting air tightness 8, push rod 8-6 is pushed, by gas nozzle 8-3 through utilizing in aperture insertion lithium ion battery steel shell
Gasket 8-2 sealing, and clamp the clamping end of fixed chuck 8-1 and movable chuck 8-4 by lithium ion battery to be detected；
(3) bolt is pushed, bolt is passed through corresponding hole on fixed chuck 8-1 and is fixed using nut, and mobile folder is made
Head 8-4 and fixed chuck 8-1 locking；
(4) clamp for detecting air tightness 8 is put into the container for filling water, guarantees that the water surface floods lithium ion battery steel completely
Shell；
(5) first switch valve 2 and second switch valve 5 are opened, sets the work pressure in pipeline in intelligent digital controller 6
Power, so that intelligent digital controller 6 is adjusted pressure-regulating device 4 makes manifold pressure reach technique requirement standard；
(6) third switch valve 9 is slowly opened, whether observation steel shell seal location has bubble to emerge, judge to seal with this
Whether the air-tightness of process is up to standard；
(7) after the completion of testing, first switch valve 2 is closed, then slowly opens the 4th switch valve 10 and detects battery air tightness
The nitrogen purge of tooling internal residual.
Comparative example 1
A kind of battery air tightness detecting tool, the tooling include clamp for detecting air tightness 8, gas supply device 1, pressure
Regulating device 4, gas communication device 3, the first rubber gas-guide tube 7, the second rubber gas-guide tube 11, intelligent digital controller 6 and first
Switch valve 2, second switch valve 5, third switch valve 9 and the 4th switch valve 10；
Gas supply device 1 includes nitrogen cylinder；Pressure-regulating device 4 includes solenoid valve；Gas communication device 3 is not 304 not
Become rusty steel pipe；First switch valve 2 is needle valve；Second switch valve 5 is pressure reducing valve；Third switch valve 9 is ball valve；4th switch valve 10
For ball valve；
Wherein first switch valve 2 is located at the top of gas supply device 1, is connected with gas communication device 3, control gas supply
Connection between device 1 and gas communication device 3；On gas communication device 3 apart from gas supply device 1 from closely to far be sequentially connected for
Second switch valve 5, pressure-regulating device 4, the second rubber gas-guide tube 11, the first rubber gas-guide tube 7 and the 4th switch valve 10；Second
11 one end of rubber gas-guide tube is connect with gas communication device 3, and the other end is connect with intelligent digital controller 6；First rubber gas-guide tube 7
One end is connect with gas communication device 3, and the other end is connect with clamp for detecting air tightness 8；Clamp for detecting air tightness 8 and gas communication device
Third switch valve 9 is provided between 3；
The structure of clamp for detecting air tightness 8.Wherein clamp for detecting air tightness 8 includes shell 8-8, fixed chuck 8-1, movement
Collet 8-4, push rod 8-6 and bolt；Movable chuck 8-4 and fixed chuck 8-1 are all set in shell 8-8；Movable chuck 8-4
In the lower part shell 8-8, the radian of clamping end is 180 °, and the clamping end is provided with 2 circular protrusions, each convex surfaces
It is provided with anti-slip layer；Movable chuck 8-4 is fixed on inside frame 8-9, and push rod 8-6 passes through shell 8-8 and is fixed on movable chuck 8-4
Lower part；Fixed chuck 8-1 is located at the top shell 8-8, and the radian of clamping end is 180 °；Gas nozzle 8-3 protrudes from fixed chuck 8-1
Lower part, parallel with the axial direction of bolt, gas nozzle 8-3 is arranged with gasket 8-2；The quantity of bolt is 6, is located at mobile folder
Between head 8-4 and frame 8-9, screw rod passes through fixed chuck 8-1 perpendicular to the contact surface of fixed chuck 8-1 and movable chuck 8-4
Corresponding hole, and fixed with matched nut；Fixed chuck 8-1 is internally provided with cavity 8-7, and the top cavity 8-7 is air inlet,
Air inlet is connect with the first rubber gas-guide tube 7, and the lower part cavity 8-7 is gas outlet, and gas outlet is connect with gas nozzle 8-3.
The tooling is used for operating procedure when detection cylinder type lithium ion battery airtightness are as follows:
(1) all valves of air-tightness detection tool are first closed, including first switch valve 2, second switch valve 5, third are opened
Close valve 9, the 4th switch valve 10 and pressure-regulating device 4；
(2) aperture is made a call on lithium ion battery steel shell to be detected, is later mounted on lithium ion battery and its specification
On matched clamp for detecting air tightness 8, push rod 8-6 is pushed, by gas nozzle 8-3 through utilizing in aperture insertion lithium ion battery steel shell
Gasket 8-2 sealing, and clamp the clamping end of fixed chuck 8-1 and movable chuck 8-4 by lithium ion battery to be detected；
(3) bolt is pushed, bolt is passed through corresponding hole on fixed chuck 8-1 and is fixed using nut, and mobile folder is made
Head 8-4 and fixed chuck 8-1 locking；
(4) clamp for detecting air tightness 8 is put into the container for filling water, guarantees that the water surface floods lithium ion battery steel completely
Shell；
(5) first switch valve 2 and second switch valve 5 are opened, sets the work pressure in pipeline in intelligent digital controller 6
Power, so that intelligent digital controller 6 is adjusted pressure-regulating device 4 makes manifold pressure reach technique requirement standard；
(6) third switch valve 9 is slowly opened, whether observation steel shell seal location has bubble to emerge, judge to seal with this
Whether the air-tightness of process is up to standard；
(7) after the completion of testing, first switch valve 2 is closed, then slowly opens the 4th switch valve 10 and detects battery air tightness
The nitrogen purge of tooling internal residual.
It records embodiment 1-3 and comparative example 1 detects the time of battery air tightness, wherein battery described in embodiment 1 is airtight
Property detecting tool detect one group of battery average time are as follows: 1min battery installation, stomata alignment and tooling fix, 3min is airtight
Property testing time, total 4min；
Battery air tightness detecting tool as described in example 2 detects the average time of one group of battery are as follows: the battery of 1.5min
Installation, stomata alignment and tooling are fixed, the 3min air tightness test time, total 4.5min；
Battery air tightness detecting tool described in embodiment 3 detects the average time of one group of battery are as follows: the battery of 2.5min
Installation, stomata alignment and tooling are fixed, the 3min air tightness test time, total 4min；
Battery air tightness detecting tool described in comparative example 1 detects the average time of one group of battery are as follows: the battery of 4min is pacified
Dress, stomata alignment and tooling are fixed, the 3min air tightness test time, total 7min.
To sum up, battery air tightness detecting tool structure provided by the utility model is simple, can efficiently fix to be detected
Battery improves the efficiency of detection battery air tightness.
The Applicant declares that the foregoing is merely specific embodiment of the present utility model, but the protection model of the utility model
It encloses and is not limited thereto, it should be clear to those skilled in the art, any to belong to those skilled in the art and exist
In the technical scope that the utility model discloses, any changes or substitutions that can be easily thought of, all falls within the protection scope of the utility model
Within the open scope.
Claims (10)
1. a kind of battery air tightness detecting tool, including clamp for detecting air tightness, the clamp for detecting air tightness include clamping end
It is arc-shaped fixed chuck and movable chuck, which is characterized in that the radian of the movable chuck clamping end is greater than 180 °, moves
The sum of circular arc behind the clamping end of dynamic collet and the clamping end cooperation of fixed chuck is 360 °.
2. battery air tightness detecting tool according to claim 1, which is characterized in that the circle of the movable chuck clamping end
Arc radian is 300 °.
3. battery air tightness detecting tool according to claim 1, which is characterized in that the clamping end of the movable chuck is set
Set multiple protrusions.
4. battery air tightness detecting tool according to claim 3, which is characterized in that the protrusion is round and/or angle
Shape.
5. battery air tightness detecting tool according to claim 3, which is characterized in that the convex surfaces setting is anti-skidding
Layer.
6. battery air tightness detecting tool according to claim 1, which is characterized in that the fixed chuck and movable chuck
Cooperated by least one fast locking pin.
7. battery air tightness detecting tool according to claim 6, which is characterized in that the clamp for detecting air tightness also wraps
Include shell, frame, push rod, gas nozzle and gasket；
Fixed chuck and movable chuck are all set in shell, and fixed chuck is located at the top of shell, and fixed chuck is additionally provided with
Cavity, cavity are provided with air inlet and air outlet, and gas outlet is connected to gas nozzle；Movable chuck is located at the lower part of shell, mobile folder
Head is fixed in frame；Gasket is provided on gas nozzle；Push rod passes through shell and is fixed on movable chuck；Fast locking pin setting
In in shell, housing bottom position corresponding with fast locking pin is provided with hole.
8. battery air tightness detecting tool according to claim 7, which is characterized in that the size of the gas nozzle is less than battery
The size of drilling.
9. battery air tightness detecting tool according to claim 1, which is characterized in that the battery air tightness detecting tool
It further include gas supply device, pressure-regulating device, gas communication device and multiple switch valve, gas communication device one end and gas supply
It is connected to device, the other end is connect at least one clamp for detecting air tightness, and pressure-regulating device is set to air-leakage test folder
Between tool and gas supply device, the switch valve is respectively arranged between gas supply device and gas communication device and leads with gas
Between logical device and clamp for detecting air tightness.
10. battery air tightness detecting tool according to claim 9, which is characterized in that the battery air tightness detects work
Dress further includes the intelligent digital controller being set on gas communication device, intelligent digital controller be located at clamp for detecting air tightness and
Between gas supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173514.7U CN208887863U (en) | 2018-07-24 | 2018-07-24 | A kind of battery air tightness detecting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173514.7U CN208887863U (en) | 2018-07-24 | 2018-07-24 | A kind of battery air tightness detecting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887863U true CN208887863U (en) | 2019-05-21 |
Family
ID=66507245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821173514.7U Active CN208887863U (en) | 2018-07-24 | 2018-07-24 | A kind of battery air tightness detecting tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873627A (en) * | 2019-11-29 | 2020-03-10 | 福建南平南孚电池有限公司 | Battery gas tightness detects frock |
| CN112629766A (en) * | 2019-09-24 | 2021-04-09 | 深圳市莫提尔科技有限公司 | Steel shell cylinder battery leakproofness testing arrangement |
-
2018
- 2018-07-24 CN CN201821173514.7U patent/CN208887863U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629766A (en) * | 2019-09-24 | 2021-04-09 | 深圳市莫提尔科技有限公司 | Steel shell cylinder battery leakproofness testing arrangement |
| CN110873627A (en) * | 2019-11-29 | 2020-03-10 | 福建南平南孚电池有限公司 | Battery gas tightness detects frock |
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