Utility model content
The purpose of this utility model is to provide a kind of test systems for detecting battery liquid-filling hole leakproofness, to solve
The air-leakage test efficiency in battery liquid-filling hole existing in the prior art is low, and cannot be carried out to battery liquid-filling hole effective airtight
Property detection defect.
To achieve the above object, the technical solution adopted in the utility model is:It provides a kind of for detecting battery liquid-filling hole
The enclosed inside of the test system of leakproofness, the battery has detection gas, including:
Feed conveying device, for conveying battery to be detected, the feed conveying device includes for battery to be two-by-two
The feeding web that one group of mode is placed, the feed conveying device have the feeder sequentially laid along battery conveying direction
Position, feeding station and discharging station;
Detector;
At least one test device for air tightness, including:Test mounting bracket;Detection case is installed on the test mounting bracket,
The detection case has the test chamber of a side opening;Guide post is installed on the test mounting bracket;End cover, for covering
It closes in the opening and test chamber is made to form confined space, the guide post is arranged in the end cover;Bearing support is used
In placing each group battery, the bearing support is fixed on the side towards detection case of end cover;Gas pipeline, for this
Test chamber vacuumizes;Pipeline is detected, is connected to detector so that detector tests to the detection gas concentration in test chamber;
Lower material conveying device, for placing each group battery detected through the test device for air tightness;
Transfer device, each group battery for will be located on the feeding station are moved to the bearing support, and will
This group of battery after detection is moved on the lower material conveying device;
Drawing mechanism, for each group battery on the lower material conveying device to be moved to the discharging station.
Further, further include base station, the detector, test device for air tightness, lower material conveying device, transfer device and
Drawing mechanism is arranged on the base station and is supported by the base station.
Further, the surface of the base station has parallel with the battery conveying direction on the feed conveying device one
Laterally and vertical with the transverse direction one is longitudinal;
The quantity of test device for air tightness is four, and respectively two first test device for air tightness and two second air-tightness are surveyed
Trial assembly is set, and two first test device for air tightness are arranged side by side along the longitudinal direction is parallel to, two second air tightness tests dress
It sets and is arranged side by side along being parallel to the longitudinal direction, and two first test device for air tightness and two second test device for air tightness
It is symmetrical arranged on the lateral center line;
The quantity of feeding station be two, respectively the first feeding station and on battery conveying direction be located at the first feeding
Second feeding station of station downstream;
The quantity of the transfer device is two, respectively for moving each group battery on first feeding station
To the first transfer device of the first test device for air tightness and for each group battery on second feeding station to be moved to
Second transfer device of the second test device for air tightness.
Further, first transfer device and the second transfer device are parallel to the longitudinal direction including edge and prolong
The transfer crossbeam stretched, the transfer skid, the transfer skid for driving transfer skid movement that are slidably installed on transfer crossbeam
Actuator, the transfer clamping jaw mounting bracket being liftably arranged on transfer skid, for driving transfer clamping jaw installation
The transfer mounting bracket actuator of holder lifting, the transfer clip claw assembly being fixed in the transfer clamping jaw mounting bracket.
Further, the lower material conveying device includes along parallel with the battery conveying direction on the feed conveying device
Direction extend blanking guide rail, be slidably installed on the blanking guide rail and for place each group battery translator slider and make institute
State the slider-actuated part of translator slider movement.
Further, the test device for air tightness further includes being connected to the test chamber of the detection case and breaking for outside atmosphere
Vacuum pipe and the vacuum-breaking valve being arranged on the vacuum breaker pipeline.
Further, the feed conveying device further includes for sweeping to the battery scanning in the feed station
Code device, the code reader are arranged above the feed station.
Further, the feed conveying device in be provided in the feed station for limit battery movement charging
Baffle plate assembly, the charging baffle plate assembly include charging baffle for being abutted with battery and make charging baffle described in be parallel to
The charging barrier driving part of longitudinal direction movement.
Further, the detection gas are inert gas.
Further, the inert gas is helium, and the detector is helium mass spectrometer leak detector.
It is compared with the prior art, the test system provided by the utility model for detecting battery liquid-filling hole leakproofness is adopted
With feed conveying device, detector, lower material conveying device, transfer device, drawing mechanism and test device for air tightness, in this way, from
Dynamicization degree is high, and can improve production efficiency, cost-effective, and can ensure accuracy of detection, improves the quality of battery.
Description of the drawings
Fig. 1 is that the solid for the test system for detecting battery liquid-filling hole leakproofness that the utility model embodiment provides is shown
It is intended to;
Fig. 2 is the stereoscopic schematic diagram for the feed conveying device that the utility model embodiment provides;
Fig. 3 is the stereoscopic schematic diagram for the test device for air tightness that the utility model embodiment provides;
Fig. 4 is the stereoscopic schematic diagram for the transfer device that the utility model embodiment provides;
Fig. 5 is the stereoscopic schematic diagram for the lower material conveying device that the utility model embodiment provides;
Fig. 6 is the stereoscopic schematic diagram for the drawing mechanism that the utility model embodiment provides;
Fig. 7 is the stereoscopic schematic diagram for the repetition measurement pallet that the utility model embodiment provides;
Fig. 8 is the stereoscopic schematic diagram for the buffer storage that the utility model embodiment provides;
Fig. 9 is the stereoscopic schematic diagram with positioning mechanism that the utility model embodiment provides.
Main element symbol description
100:Test system 200:Battery
110:Base station 120:Compressed air source unit
10:Feed conveying device 11:Feeding web
10a:Feed station 10b:Feeding station
10c:Discharge station 12:Feed supporting rack
13:Feed initiative roll shaft 14:Feed driven roll shaft
15:Feed actuator 101b:First feeding station
102b:Second feeding station 16:It is oriented to schedule
17:Code reader 18:Feed baffle plate assembly
181:Feed barrier driving part 19:Feeding baffle plate assembly
191:Feeding barrier driving part
20:Lower material conveying device 21:Blanking guide rail
22:Translator slider 23:Slider-actuated part
30:Transfer device 301:First transfer device
302:Second transfer device 31:Transfer crossbeam
32:Transfer skid 33:Transfer skid actuator
34:Transfer clamping jaw mounting bracket 35:Transfer mounting bracket actuator
36:Transfer clip claw assembly
40:Drawing mechanism 41:Discharge crossbeam
42:Discharge skid 43:Discharge skid actuator
44:Discharge clamping jaw mounting bracket 45:Discharge mounting bracket actuator
46:Discharge clip claw assembly
50:Test device for air tightness 51:Mounting bracket
52:Detection case 53:Guide post
54:End cover 55:Bearing support
57:Detect pipeline
501:First test device for air tightness 502:Second test device for air tightness
521:Bleeding point 511:Mounting base
512:Case supports plate 513:Endcap support plate
514:End cap actuator 522:Exhaust outlet
60:Repetition measurement pallet
70:Buffer storage 71:Cache holder
72:Cache actuator
80:With positioning mechanism 81:Match guide rail
82:Match sliding block 83:Match actuator
Specific implementation mode
In order to make technical problem to be solved in the utility model, technical solution and advantageous effect be more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that described embodiment is this
A part of the embodiment of utility model, instead of all the embodiments.Based on described the embodiments of the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of without creative work, belongs to the utility model
The range of protection.
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to specific attached drawing
The realization of the utility model is described in detail.
For sake of convenience, hereinafter so-called " preceding " " rear " " left side " " right side " "upper" "lower" and attached drawing itself it is forward and backward, left,
Right, upper and lower does not play restriction effect to consistent to the structure of the utility model.
Unless otherwise defined, the technical term or scientific term used herein is should be in the utility model fields
The ordinary meaning that personage with general technical ability is understood.Make in the utility model patent application specification and claims
" first ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish
Different component parts.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but indicates exist at least
One.
As shown in Figure 1 to 9, it is a preferred embodiment provided by the utility model.
Test system 100 provided in this embodiment for detecting battery liquid-filling hole leakproofness, the enclosed inside of battery 200
There are detection gas comprising feed conveying device 10, detector (not shown), lower material conveying device 20, transfer device 30, discharging
Device 40 and at least one test device for air tightness 50.Feed conveying device 10 is fed for conveying battery 200 to be detected
Conveying device 10 include for battery 200 by two-by-two for one group in a manner of the feeding web 11 placed, feed conveying device 10 has
There is feed station 10a, the feeding station 10b sequentially laid along 200 conveying direction of battery and discharging station 10c;Blanking conveys
Device 20 is for placing each group battery 200 detected through test device for air tightness 50;Transfer device 30 will be for that will be located at feeding work
Each group battery 200 on the 10b of position is moved on bearing support 55, and this group of battery 200 after detection is moved to blanking conveying
On device 20;Drawing mechanism 40 is used to each group battery 200 on lower material conveying device 20 being moved to discharging station 10c.Gas
Close system safety testing device 50 includes test mounting bracket 51, detection case 52, guide post 53, end cover 54, bearing support 55, flue
Road (not shown) and detection pipeline 57, detection case 52 are installed on test mounting bracket 51, and detection case 52 has the inspection of a side opening
Survey chamber (not shown);Guide post 53 is installed on test mounting bracket 51;End cover 54 is for covering conjunction in opening and making detection
Chamber forms confined space, and guide post 53 is arranged in end cover 54;Bearing support 55 is for placing each group battery 200, carrying branch
Frame 55 is fixed on the side towards detection case 52 of end cover 54;Gas pipeline is for vacuumizing the test chamber;Detection pipe
Road 57 is connected to detector so that detector tests to the detection gas concentration in test chamber.
The above-mentioned test system 100 for detecting battery liquid-filling hole leakproofness, using feed conveying device 10, detection
Instrument, lower material conveying device 20, transfer device 30, drawing mechanism 40 and test device for air tightness 50, in this way, high degree of automation,
And production efficiency can be improved, it is cost-effective, and can ensure accuracy of detection, improve the quality of battery 200.
Referring to Fig. 1 and 2, the feed conveying device 10 of the present embodiment, including feeds supporting rack 12, is installed in rotation on this
The charging initiative roll shaft 13 on supporting rack 12 is fed, charging driven roll shaft 14, surrounds charging initiative roll shaft 13 and feeds driven
The charging actuator 15 that feeding web 11 and driving charging initiative roll shaft 13 on roll shaft 14 rotate, battery 200 is with two
Two are placed on for one group of mode on feeding web 11, and side by side and interval is arranged.Figure it is seen that in the present embodiment
In, feed conveying device 10 has the feed station 10a, the feeding station 10b that are sequentially laid along 200 moving direction of battery and goes out
Expect that station 10c, feed station 10a are located at 10 left end of feed conveying device (left end of diagram), feed supporting rack 12 in this into
Inductor (not shown) is installed at material station 10a, to incude whether feed station 10a has battery 200, feeding station 10b's
Quantity is but is not limited to two, and two feeding station 10b are respectively the first feeding station 101b and in 200 conveying direction of battery
Upper the second feeding station 102b positioned at the first downstreams feeding station 101b.Actuator 15 is fed to be but be not limited to motor,
When feeding the rotation of actuator 15, driving feeding web 11 rotates, to which the battery 200 for carrying out upstream equipment transport moves.It is special
It is other to be, multiple guiding schedules 16 are provided on feed conveying device 10, multiple guiding schedules 16 are arranged in crossbar array, are being hung down
Directly the guiding steadily moved for battery 200 is constructed between guiding schedule 16 adjacent on the direction of 200 moving direction of battery
Space, each be oriented on schedule 16 are provided with directive wheel.
Referring to Fig. 2, feed conveying device 10 further includes being swept to what is scanned to the battery 200 in feed station 10a
Code device 17, code reader 17 are arranged above feed station 10a, and code reader 17 is but is not limited to barcode scanning gun.It is understood that
After code reader 17 senses battery 200, code reader 17 carries out barcode scanning to battery 200.
As further optimizing, which is provided with charging baffle plate assembly 18 at feed station 10a,
Charging baffle plate assembly 18 includes charging baffle (not shown) for being abutted with battery 200 and makes charging baffle along feeding web
The charging barrier driving part 181 of 11 width direction movement, charging barrier driving part 181 is but is not limited to cylinder, in this way, working as
After inductor senses battery 200, middle control cabinet control charging barrier driving part 181 to release charging baffle, blocking battery 200 after
Continuous movement, to be positioned to battery 200, in order to 17 barcode scanning of code reader.That is, each group battery 200 be moved into
When expecting station 10a, inductor senses that the rear feeding baffle of material stretches out blocking battery 200, and code reader 17 carries out barcode scanning, and barcode scanning is complete
Battery 200 after is moved to the first feeding station 101b or the second feeding station 102b, to wait for that transfer device 30 captures.
Referring to Fig. 1 and 2, feeding baffle plate assembly is both provided at the first feeding station 101b and the second feeding station 102b
19, charging baffle plate assembly 18 includes feeding baffle (not shown) for being abutted with battery 200 and keeps the edge charging of feeding baffle defeated
The feeding barrier driving part 191 for sending the width direction of band 11 to move, feeding barrier driving part 191 are but are not limited to cylinder, lead to
The feeding baffle plate assembly 19 added at the first feeding station 101b and the second feeding station 102b is crossed, may be selected to move on battery 200
It moves in the first feeding station 101b or in the second feeding station 102b and carries out feeding.
Referring to Fig. 1 and 3, the present embodiment further includes being located at for detecting the test system 100 of battery liquid-filling hole leakproofness
The base station 110 and compressed air source unit 120 of 10 side of feed conveying device, compressed air source unit 120, test device for air tightness 50, blanking are defeated
Device 20, transfer device 30 and drawing mechanism 40 is sent to be arranged on base station 110 and supported by base station 110.The table of base station 110
Face has one parallel with 200 conveying direction of battery on feed conveying device 10, and laterally (directions D1 in diagram, unite below
Claim first direction D1) and the longitudinal direction vertical with first direction D1 (second direction D2 is referred to as in the directions D2 in diagram below).Air source
Device 120 includes cabinet and the detector and vacuum extractor that are arranged in cabinet, and detector is that can verify that in the prior art
All existing detectors of the detection gas leaked in confined space.
Referring to Fig. 1 and 3, test device for air tightness 50, to place each group battery 200 in order to 200 liquid injection port of battery
Sealing propertytest.In the present embodiment, the quantity of test device for air tightness 50 is but is not limited to four, four air tightness tests
Device 50 is respectively two first test device for air tightness 501 and two second test device for air tightness 502, two first air tightness tests
Device 501 is arranged side by side along the direction for being parallel to second direction D2, and two second test device for air tightness 502 are along being parallel to second party
It is arranged side by side to the direction of D2, and two first test device for air tightness 501 and two second test device for air tightness 502 are in first party
It is symmetrical arranged on the center line of D1, the first test device for air tightness 501 is corresponding with the first feeding station 101b, and the second air-tightness is surveyed
It is corresponding with the second feeding station 102b that trial assembly sets 502.First test device for air tightness 501 and the second test device for air tightness 502
Include test mounting bracket 51, detection case 52, guide post 53, end cover 54, bearing support 55, gas pipeline and detection pipeline
57, detection case 52 is installed on test mounting bracket 51, and detection case 52 has the test chamber of a side opening, and the top of detection case 52 is opened
Equipped with the bleeding point 521 with test chamber;Guide post 53 is installed on test mounting bracket 51;End cover 54 is closed for covering
Opening simultaneously makes test chamber form confined space, and guide post 53 is arranged in end cover 54;Bearing support 55, for placing each group
Battery 200, bearing support 55 are fixed on the side towards detection case 52 of end cover 54;Gas pipeline, for the detection
Chamber vacuumizes;Pipeline 57 is detected, is connected to detector so that detector tests to the detection gas concentration in test chamber.Gas
One end of body pipeline is connect with the bleeding point 521 that detection case 52 is connected to, and the other end connects vacuum extractor, detects pipeline 57 1
End is connect with detection case 52, other end connecting detection instrument, and detection gas are but are not limited to inert gas, and inert gas is but not
It is confined to helium, detector is helium mass spectrometer leak detector (Helium Mass SpectrometerLeakDetector).It needs
Battery 200 bright, that the test system in the present embodiment is detected is rectangular dynamic lithium battery 200, the manufacture of battery 200
In the process, inside to battery 200 after (battery core) note electrolyte, then to injection detection gas inside battery 200 and in liquid injection hole
Sealing nail is inside squeezed into, liquid injection hole is sealed.Before 200 fluid injection of battery, the aluminum hull of battery 200 can pass through an air-tightness and survey
Examination to examine the air-tightness of aluminum hull edge (welding position), and after fluid injection inflation, then surveys the leakproofness of liquid injection hole
Examination.After detection case 52 is sealingly engaged with end cover 54, vacuum extractor vacuumizes test chamber by gas pipeline, after pressurize
Detector starts to test to the concentration of (battery 200 is leaked) detection gas in test chamber by detecting pipeline 57,
And data are transmitted to test program.Specifically, the background noise of helium is low, and molecular weight and the coefficient of viscosity are small, thus easily pass through
Leakage hole is simultaneously easily spread;In addition, helium system inert gas, not etching apparatus;If detected 200 weld seam of battery has leakage hole, examine
Instrument is surveyed to be reacted.
Specifically, test mounting bracket 51 includes mounting base 511 and the case supports plate being fixed on mounting base 511
512, endcap support plate 513, detection case 52 are fixedly mounted in case supports plate 512, the both ends of guide post 53 respectively with babinet
Support plate 512 and endcap support plate 513 are connected and fixed, and end cover 54 is slidably located in guide post 53, endcap support plate
End cap actuator 514 for making end cover 54 with respect to detection case 52 is installed, end cap actuator 514 is but not office on 513
It is limited to cylinder, in this way, by the effect of end cap actuator 514, pushes end cover 54 to be enclosed with detection case 52, and detecting
End cover 54 is pulled away from detection case 52 after.
As further optimizing, test device for air tightness 50 further includes the test chamber and outside atmosphere of communication with detection case 52
Vacuum breaker pipeline (not shown) and the vacuum-breaking valve (not shown) that is arranged on vacuum breaker pipeline, the top of detection case 52 opens up
There are the exhaust outlet 522 being connected to test chamber, one end of vacuum breaker pipeline to connect the exhaust outlet 522.In this way, complete in performing leak test
End cover 54 is pulled away from detection case by Cheng Hou by vacuum-breaking valve communication with detection chamber and outside atmosphere, then by end cap actuator 514
52。
Referring to Fig. 1 and 4, transfer device 30, each group battery 200 for will be located on feeding station 10b is moved to carrying
On holder 55, and this group of battery 200 after detection is moved on lower material conveying device 20.In the present embodiment, transfer device
30 quantity is but is not limited to two, and two transfer devices 30 are respectively for by each group electricity on the first feeding station 101b
Pond 200 is moved to the first transfer device 301 of the first test device for air tightness 501 and is used for the second feeding station 102b
Each group battery 200 be moved to the second transfer device 302 of the second test device for air tightness 502.
From fig. 4, it can be seen that the first transfer device 301 and the second transfer device 302, which include edge, is parallel to second direction
The transfer crossbeam 31 of the direction extension of D2, the transfer skid 32 being slidably installed on transfer crossbeam 31 transfer skid for driving
32 movement transfer skid actuator 33, be liftably arranged transfer skid 32 on transfer clamping jaw mounting bracket 34,
For driving the transfer mounting bracket actuator 35 of 34 lifting of transfer clamping jaw mounting bracket, being fixed on transfer clamping jaw mounting bracket 34
On transfer clip claw assembly 36, transfer skid actuator 33 is but is not limited to cylinder, and transfer mounting bracket actuator 35 is
But it is not limited to cylinder, each group battery 200 on feed conveying device 10 is moved to after barcode scanning on feed station 10a, transfer
Two transfer clip claw assemblies 36 of device 30 decline with transfer clamping jaw mounting bracket 34 and capture two electricity in each group battery 200 respectively
Pond 200, and each group battery 200 is moved in test device for air tightness 50, after the completion of to be tested, transfer device 30 is again by battery
200 are moved on lower material conveying device 20.
Referring to Fig. 1 and 5, lower material conveying device 20, for placing each group battery detected through test device for air tightness 50
200, in the present embodiment, lower material conveying device 20 includes along parallel with 200 conveying direction of battery on feed conveying device 10
Direction extend blanking guide rail 21, be slidably installed on blanking guide rail 21 and for place the translator slider 22 of each group battery 200 with
And the slider-actuated part 23 for making translator slider 22 move, slider-actuated part 23 are but are not limited to electric cylinders, it is worth mentioning at this point that, it surveys
Each group battery 200 is moved in translator slider 22 by transfer device 30 after the completion of examination, then is controlled translation by slider-actuated part 23 and slided
Block 22 drives battery 200 to move, and the battery 200 in translator slider 22 is moved to charging conveying dress finally by drawing mechanism 40
It sets on 10 discharging station 10c.
Referring to Fig. 1 and 6, drawing mechanism 40, for each group battery 200 on lower material conveying device 20 to be moved to discharging
On station 10c.In the present embodiment, drawing mechanism 40 includes the discharging crossbeam extended along the direction for being parallel to second direction D2
41, discharging skid 42, the discharging skid for driving discharging skid 42 to move being slidably installed on discharging crossbeam 41 drive
Part 43, the discharging clamping jaw mounting bracket 44 being liftably arranged on discharging skid 42 install branch for driving discharging clamping jaw
The discharging mounting bracket actuator 45 of the lifting of frame 44, the discharging clip claw assembly 46 being fixed in discharging clamping jaw mounting bracket 44, go out
Material skid actuator 43 is but is not limited to cylinder, and 45 are but are not limited to cylinder discharging mounting bracket actuator, and blanking is defeated
Send device 20 receive by the first transfer device 301 and the second transfer device 302 clamping come detected after battery 200, and general
Battery 200 is moved to the corresponding position in 40 lower section of drawing mechanism, and the scene 2 feed collet claw assembly 46 of drawing mechanism 40 is with discharging clamping jaw
Mounting bracket 44 declines and captures respectively two batteries 200 in each group battery 200, and battery 200 is moved to feed conveying device
On 10 discharging station 10c, battery 200 is sent to upstream device.
Referring to Fig. 1 and 7, repetition measurement pallet 60, for placing the underproof single battery of liquid injection hole leakproofness primary detection
200, which is arranged side by side with test device for air tightness 50.In the present embodiment, repetition measurement pallet 60 is but not
Two are confined to, it is placed side by side with the first test device for air tightness 501, the second test device for air tightness 502 respectively, pass through first
The underproof battery of primary detection 200 is moved to corresponding repetition measurement pallet 60 by transfer device 301 and the second transfer device 302
On, wait for repetition measurement again.
Referring to Fig. 1 and 8, buffer storage 70, barcode scanning is unqualified and the underproof battery 200 of repetition measurement for placing, caching
Device 70 and test device for air tightness 50 are arranged side by side and between test device for air tightness 50 and repetition measurement pallet 60.At this
In embodiment, buffer storage 70 is but is not limited to two, is surveyed respectively with the first test device for air tightness 501, the second air-tightness
Trial assembly is set 502 placed side by side, and buffer storage 70 includes caching holder 71, the caching driving wheel (figure that is arranged on caching holder 71
Do not show), caching driven wheel (not shown), surround caching driving wheel and cache the caching band (not shown) between driven wheel with
And the caching actuator 72 for making caching driving wheel rotate, which is but is not limited to motor, which takes can
Three groups of batteries 200 are at most placed simultaneously.
Referring to Fig. 1 and 9, match positioning mechanism 80, the single battery 200 for placing retest-ok is matched in the present embodiment
Positioning mechanism 80, include along be parallel to first direction D1 direction extend pairing guide rail 81, be slidably installed in pairing guide rail 81 on and
For placing battery 200 pairing sliding block 82 and make pairing sliding block 82 move pairing actuator 83, pairing actuator 83 be
But it is not limited to cylinder, the single battery 200 of retest-ok is temporarily placed on pairing sliding block 82, waits for the list of another retest-ok
A battery 200 is moved to after being matched on lower material conveying device 20 together;When having battery 200 on pairing sliding block 82, pairing
Actuator 83 stretching so that it is avoided the blanking path of drawing mechanism 40, when the battery 200 of drawing mechanism 40 being avoided to fall off with it is beneath
Electric conduction phenomena occurs for battery 200.
In addition, the system that the present embodiment proposes, battery 200 is examined using automatic helium, full-automation is run, more than cleaning by hand
Has following advantages:
1, human resources consumption is small, and production capacity is high, and production efficiency is high;
2, battery 200 when detecting, avoids the contact by worker, leaves the pollutants such as sweat on 200 surface of battery, disappears
In addition to quality hidden danger;
3, battery 200 is placed on the inspection of closed environment helium when automatic detection, No leakage is safer, more environmentally friendly;
200 leakage events of battery occur when 4, manual operation being avoided to slip up.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Any modification, equivalent replacement or improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.