CN108562403A - Battery case air-leakage test aerator and method - Google Patents
Battery case air-leakage test aerator and method Download PDFInfo
- Publication number
- CN108562403A CN108562403A CN201810205777.XA CN201810205777A CN108562403A CN 108562403 A CN108562403 A CN 108562403A CN 201810205777 A CN201810205777 A CN 201810205777A CN 108562403 A CN108562403 A CN 108562403A
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- China
- Prior art keywords
- battery case
- air
- leakage test
- aerating
- gas outlet
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a kind of battery case air-leakage test aerator and methods.Battery case air-leakage test aerator includes battery case, and the battery case sealed set further includes：Air entrainer, the air entrainer include air inlet and gas outlet, and the regulating part for adjusting tolerance is provided between the air inlet and the gas outlet；The air inlet is for connecting air source, and the air inlet is located at outside the battery case, and the gas outlet extends in the battery case, and the outer side surface of the gas outlet is tightly connected with the battery case.Battery case air-leakage test aerating method is used for battery case aerating.Battery case air-leakage test aerator provided by the invention and method, shorten the aerating time, increase the efficiency of battery case air-leakage test, accelerate actual production process, efficiently control the speed of aerating, accurately control the atmospheric pressure value of battery case.
Description
Technical field
The present invention relates to battery pack detection technique field more particularly to a kind of battery case air-leakage test aerator and sides
Method.
Background technology
Battery pack is the critical component of electric vehicle, and battery pack is placed in battery case, and the air-tightness of battery case is related to
The safety of electric vehicle and the service life of battery pack, it is weight in electric vehicle safety detection to be detected to the air-tightness of battery case
Want part.
In the prior art, general so that the atmospheric pressure value in battery case is more than extraneous gas using to the inside of battery case addition gas
Pressure value detects whether that mode that gas goes out from battery case internal leakage detects the air-tightness of battery case.Specifically, battery case
Upper cover seals, and stays an interface as air inlet, remaining interface all blocks, using air gauge control pressure, by not
Suds are applied to the outer wall of battery case by the aerating into battery case of the interface of closure, check that battery case whether there is gas leakage
Place.Inventor has found that above-mentioned test method comes with some shortcomings during realizing innovation and creation：First, battery case
Volume it is larger, and the mistake tolerance of plug receptacle is very small, causes to need the plenty of time to babinet aerating, reduces detection efficiency,
The process of actual production is dragged slowly；Second, interface only provides gas passage, and the aerating speed and aerating amount of battery case can not
It controls, the atmospheric pressure value in battery case can not be adjusted accurately.
Therefore, it is necessary to solve above-mentioned technical problem.
Invention content
A kind of battery case air-leakage test aerator of present invention offer and method, to solve existing in the prior art ask
Topic shortens the aerating time, increases the efficiency of battery case air-leakage test, accelerates actual production process, efficiently controls aerating
Speed accurately controls the atmospheric pressure value of battery case.
The present invention provides a kind of battery case air-leakage test aerator, including battery case, the battery case sealing is set
It sets, further includes：Air entrainer, the air entrainer include air inlet and gas outlet, are arranged between the air inlet and the gas outlet
It is useful for adjusting the regulating part of tolerance；The air inlet is for connecting air source, and the air inlet is located at outside the battery case, institute
It states gas outlet to extend in the battery case, the outer side surface of the gas outlet is tightly connected with the battery case.Pass through aerating
Gas is added to the inside of battery case in device, and the aerating flow of battery case can be simplified, far to battery case aerating by opening regulating part
It is more convenient than gas is added into battery case by the interface on battery case, the time of aerating is shortened, battery case is increased
The efficiency of air-leakage test accelerates actual production process, and the aperture by changing regulating part can adjust aerating amount and aerating speed
It spends, the atmospheric pressure value in accurate regulating cell case.
Optionally, the air entrainer is charging valve, and the regulating part is the spring assembly in the charging valve.Pass through adjusting
Spring assembly can change the mistake tolerance of charging valve, easy to operate, reliable and stable.
Optionally, the charging valve includes valve body and the spring assembly that is arranged in the valve body, the groups of springs
Part includes core bar and the spring that is set on the core bar, and the spring, which passes through, crosses tolerance described in telescopic adjustment.Core bar is in spring
Guiding role is played to spring in compression process, spring assembly is assemblied in valve inner, passes through special tooling compressed spring, filling
The inlet channel of valve is opened, and gas can be rapidly introduced into inside Battery case, compared to interface aerating is used, shorten aerating
Time.
Optionally, the battery case air-leakage test aerator further includes flange, the outer side surface of the gas outlet with
The flange seal connects, and offers connector on the battery case, the side pair of the air entrainer is connected on the flange
It is connected on the connector, the gas outlet is connected by the flange with the battery case.When installation, first by air entrainer
It is sealingly mounted on flange, then flange seal is mounted at connector, simplify stream of the air entrainer on battery case
Journey is more convenient.
Optionally, the battery case air-leakage test aerator further includes sealing ring, and the sealing ring is located at the method
It is blue between the end face of the side wall of the connector.Sealing ring can effectively increase connector on the outer wall and battery case of flange
Inner wall junction leakproofness, further increase battery case entirety sealing performance.
Optionally, injecting hole is offered on the flange, the outer side surface sealing welding of the gas outlet is in the flange
On, the gas outlet is connected with the injecting hole.The outer side surface of gas outlet, which is melt into flange in junction, integrally ensure that
The leakproofness of junction, gas outlet are connected with injecting hole, ensure that the gas in gas outlet can be can smoothly enter by injecting hole
The inside of battery case.
Optionally, the air entrainer further includes dustproof cover, and the dustproof cover removably covers the air inlet.Dustproof cover
It can be effectively prevented the inside that the impurity such as extraneous dust enter air entrainer, ensure that the tidiness of air entrainer internal environment.
Optionally, the dustproof cover includes the cover board and sleeve being connected, and the cover board is connected on the air inlet, institute
Sleeve is stated to be set in the outside of the air entrainer and towards close to the direction of the flange extend.The setting of sleeve can ensure cover board
It is steadily connected at air inlet, increases the stability of dustproof cover covering air inlet.
Based on same inventive concept, the present invention also provides a kind of battery case air-leakage test aerating methods, by above
Battery case air-leakage test aerator aerating into battery case described in any one, includes the following steps：By air entrainer
Air inlet is connected with air source；Regulating part is opened, so that the gas in the air source is passed through the air entrainer and is delivered to the battery
The inside of case；The aperture for changing the regulating part, to adjust aerating speed and aerating amount；When the air pressure in the battery case reaches
When preset value, the regulating part is closed.Gas is added to the inside of battery case by air entrainer, opening regulating part can be to battery
Case aerating simplifies the aerating flow of battery case, and gas is added more into battery case more than by the interface on battery case
It is convenient, the time of aerating is shortened, the efficiency of battery case air-leakage test is increased, accelerates actual production process, is adjusted by changing
The aperture of section part can adjust aerating amount and aerating speed, the atmospheric pressure value in accurate regulating cell case.
Optionally, gas flowmeter is provided on the air entrainer, the gas flowmeter is located at the gas outlet and institute
It states between regulating part.According to the registration of gas flowmeter, the aperture of regulating part can be adjusted flexibly, accurately control gas in battery case
Pressure value.
Battery case air-leakage test aerator provided by the invention and method, it is all other than air entrainer on battery case
Interface is respectively positioned on closure sealing state.Gas is added to the inside of battery case by air entrainer, opening regulating part can be to electricity
Pond case aerating simplifies the aerating flow of battery case, and gas is added more into battery case more than by the interface on battery case
It is convenient to add, and shortens the time of aerating, increases the efficiency of battery case air-leakage test, accelerates actual production process, passes through change
The aperture of regulating part can adjust aerating amount and aerating speed, the atmospheric pressure value in accurate regulating cell case.
Description of the drawings
Preferred embodiment in the present invention will be described in detail by attached drawing below, to help the purpose of the present invention and excellent is understood
Point, wherein:
Fig. 1 is the structural schematic diagram for the battery case air-leakage test aerator that alternative embodiment of the present invention provides.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is the structural schematic diagram of the spring assembly for the charging valve that alternative embodiment of the present invention provides.
Fig. 5 is the structural schematic diagram of the valve body for the charging valve that alternative embodiment of the present invention provides.
Fig. 6 is the spring assembly and the structural schematic diagram after valve body assembling that alternative embodiment of the present invention provides.
Fig. 7 is the flow chart for the battery case air-leakage test aerating method that alternative embodiment of the present invention provides.
Specific implementation mode
Up, down, left, right, before and after, front, the back side, top, the bottom etc. mentioned or may mentioned in the present specification
Orientation term is defined relative to construction shown in each attached drawing, and word "inner" and "outside" refer respectively to direction or remote
From the direction of geometric center of specific component, they are opposite concepts, and it is therefore possible to can be according to its residing different location, difference
Use state and correspondingly changed.So also should not these or other orientation term be construed to restricted use
Language.
Fig. 1 is the structural schematic diagram for the battery case air-leakage test aerator that alternative embodiment of the present invention provides, and Fig. 2 is
The vertical view of Fig. 1, Fig. 3 are the upward view of Fig. 1.As shown in Figure 1 to Figure 3, the present invention provides a kind of battery case air-leakage tests
Aerator, including battery case and air entrainer 1.
Referring to Fig. 1 to Fig. 3, battery case sealed set, i.e., all interfaces on battery case are in closure
Sealing state.The gas outlet of air entrainer 1 is connected with battery case, and the outer side surface of gas outlet is sealedly connected on battery case, with
Make gas outlet with battery case in junction sealed set.Air inlet is located at the outside of battery case, and air inlet, will for connecting air source
Gas in air source is delivered to the inside of battery case by air entrainer 1.In the process, the aperture of regulating part can between 0-1
It adjusts, by changing the aperture of regulating part, aerating speed and aerating amount can be adjusted.Open regulating part can by air entrainer 1 to
Aerating in battery case, simplifies the aerating flow of battery case, and gas is added into battery case more than by the interface on battery case
Body is more convenient, shortens the time of aerating, increases the efficiency of battery case air-leakage test, accelerates actual production process, leads to
Overregulate aerating amount and aerating speed, the atmospheric pressure value in accurate regulating cell case.
Battery case air-leakage test aerator provided in an embodiment of the present invention owns other than air entrainer 1 on battery case
Interface be respectively positioned on closure sealing state.Gas is added to the inside of battery case by air entrainer 1, opening regulating part can be right
Battery case aerating, simplifies the aerating flow of battery case, and gas is added into battery case more than by the interface on battery case
It is more convenient, the time of aerating is shortened, the efficiency of battery case air-leakage test is increased, accelerates actual production process, by changing
Aerating amount and aerating speed, the atmospheric pressure value in accurate regulating cell case can be adjusted by becoming the aperture of regulating part.
Fig. 4 is the structural schematic diagram of the spring assembly for the charging valve that alternative embodiment of the present invention provides.Fig. 5 is that the present invention can
The structural schematic diagram of the valve body of the charging valve of embodiment offer is provided.Fig. 6 be the spring assembly that provides of alternative embodiment of the present invention and
Structural schematic diagram after valve body assembling.
As shown in Figures 1 to 6, optionally, air entrainer 1 is charging valve, and regulating part is the spring assembly 12 in charging valve.It is logical
The mistake tolerance of charging valve can be changed by overregulating spring assembly 12, easy to operate, reliable and stable.
On the basis of the above embodiments, the charging valve includes valve body 11 and the bullet that is arranged in the valve body 11
Spring component 12, the spring assembly 12 include core bar 14 and the spring 13 being set on the core bar 14, and the spring 13 passes through
Tolerance is crossed described in telescopic adjustment.Core bar 14 plays guiding role during spring-compressed to spring 13, and spring assembly 12 assembles
Inside valve body 11, by special tooling compressed spring 13, the inlet channel of charging valve is opened, and gas can be rapidly introduced into battery
Box house shortens the aerating time compared to interface aerating is used.Specifically, which passes through adjustment spring component
The down stroke of 12 inner springs 13 can freely control the size of tolerance, and gas is added more than from the interface on battery case
More quickly, the speed of aerating is efficiently controlled, the atmospheric pressure value of battery case is accurately controlled, during shortening air-leakage test
It is the aerating time, very useful to improving working efficiency.Need pair when charging valve provided by the invention is different from traditional air-leakage test
Interface does special tooling, simplifies the operating process of aerating.
Optionally, battery case air-leakage test aerator further includes flange 2, and the outer side surface and flange 2 of gas outlet are close
Connector is offered on envelope connection battery case, the side that the air entrainer 1 is connected on the flange 2 is docked at the connector
On, gas outlet is connected by flange 2 with battery case.When installation, air entrainer 1 is sealingly mounted on flange 2 first, then will
Flange 2 is sealingly mounted at connector, simplifies flow of the air entrainer 1 on battery case, more convenient.
As an optional implementation process, battery case air-leakage test aerator further includes sealing ring 4, the sealing
Circle 4 is located between the end face of the side wall of the flange 2 and the connector.Side and the connection of air entrainer 1 are provided on flange 2
The end face of the side wall of mouth abuts against, and sealing ring 4 can effectively increase flange 2 with the side wall end face of connector on battery case even
The leakproofness at place is connect, the sealing performance of battery case entirety is further increased.Optionally, described add is provided on the flange 2
The slot that is embedded of annular is offered on the side of gas device 1, the setting of the sealing ring 4 is embedded described in slot, to increase by 4 knot of sealing ring
The stability of structure.
Preferably, flange 2 is fixed by screws on battery case.Screw connection has advantage easy for removal and installation,
Advantageously ensure that being rapidly assembled and disassembled for flange 2, while simplified operation flow.
Further, injecting hole is offered on flange 2, the outer side surface sealing welding of gas outlet is on flange 2, gas outlet
It is connected with injecting hole.The outer side surface of gas outlet is melt into the leakproofness that integrally ensure that junction in junction with flange 2, goes out
Gas port is connected with injecting hole, ensures that the gas in gas outlet can smoothly enter into the inside of battery case by injecting hole.
Optionally, air entrainer 1 further includes dustproof cover 3, and dustproof cover 3 removably covers air inlet.Dustproof cover 3 can be effective
Ground prevents the impurity such as extraneous dust from entering the inside of air entrainer 1, ensure that the tidiness of 1 internal environment of air entrainer.
Further, dustproof cover 3 includes the cover board and sleeve being connected, and cover board is connected on air inlet, and sleeve is set in
The outside of air entrainer 1 simultaneously extends towards close to the direction of flange 2.The setting of sleeve can ensure that cover board is steadily connected to air inlet
Place increases the stability that dustproof cover 3 covers air inlet.
Fig. 7 is the flow chart for the battery case air-leakage test aerating method that alternative embodiment of the present invention provides.
As shown in fig. 7, being based on same inventive concept, the present invention also provides a kind of battery case air-leakage test aerating sides
Method is included the following steps by above battery case air-leakage test aerator gas injection into battery case：S1, by air entrainer 1
Air inlet be connected with air source；S2 opens regulating part, so that the gas in air source is passed through air entrainer 1 and be delivered to the interior of battery case
Portion；S3 changes the aperture of regulating part, to adjust aerating speed and aerating amount；S4, when the air pressure in battery case reaches preset value
When, close regulating part.Open regulating part can the aerating into battery case by air entrainer 1, simplify the aerating flow of battery case,
It is more convenient more than gas is added into battery case by the interface on battery case, the time of aerating is shortened, battery is increased
The efficiency of case air-leakage test accelerates actual production process, by adjusting aerating amount and aerating speed, accurate regulating cell case
Interior atmospheric pressure value.
Optionally, it is provided with gas flowmeter on air entrainer 1, gas flowmeter is between gas outlet and regulating part.Root
According to the registration of gas flowmeter, the aperture of regulating part can be adjusted flexibly, accurately control atmospheric pressure value in battery case.
Battery case air-leakage test aerator provided in an embodiment of the present invention and method, in addition to air entrainer 1 on battery case
Outer all interfaces are respectively positioned on closure sealing state.Gas is added to the inside of battery case by air entrainer 1, opens regulating part
The aerating flow of battery case can be simplified to battery case aerating, added into battery case more than by the interface on battery case
Enter that gas is more convenient, shorten the time of aerating, increase the efficiency of battery case air-leakage test, accelerates actual production process,
Aperture by changing regulating part can adjust aerating amount and aerating speed, the atmospheric pressure value in accurate regulating cell case.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, the range for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of battery case air-leakage test aerator, including battery case, which is characterized in that the battery case sealed set,
Further include：
Air entrainer, the air entrainer include air inlet and gas outlet, are provided with and are used between the air inlet and the gas outlet
Adjusted the regulating part of tolerance；The air inlet is for connecting air source, and the air inlet is located at outside the battery case, the outlet
Mouth extends in the battery case, and the outer side surface of the gas outlet is tightly connected with the battery case.
2. battery case air-leakage test aerator according to claim 1, which is characterized in that the air entrainer is filling
Valve, the regulating part are the spring assembly in the charging valve.
3. battery case air-leakage test aerator according to claim 2, which is characterized in that the charging valve includes valve
Body and the spring assembly being arranged in the valve body, the spring assembly include core bar and the bullet that is set on the core bar
Spring, the spring is by crossing tolerance described in telescopic adjustment.
4. battery case air-leakage test aerator according to claim 1, which is characterized in that the battery case air-tightness
It further includes flange to detect aerator, and the outer side surface of the gas outlet is connect with the flange seal, is opened on the battery case
Equipped with connector, the side that the air entrainer is connected on the flange is docked on the connector, and the gas outlet passes through
The flange is connected with the battery case.
5. battery case air-leakage test aerator according to claim 4, which is characterized in that the battery case air-tightness
It further includes sealing ring to detect aerator, and the sealing ring is located between the end face of the side wall of the flange and the connector.
6. battery case air-leakage test aerator according to claim 5, which is characterized in that offered on the flange
Injecting hole, on the flange, the gas outlet is connected the outer side surface sealing welding of the gas outlet with the injecting hole.
7. the battery case air-leakage test aerator according to claim 1-6 any one, which is characterized in that described to add
Gas device further includes dustproof cover, and the dustproof cover removably covers the air inlet.
8. battery case air-leakage test aerator according to claim 7, which is characterized in that the dustproof cover includes phase
The cover board and sleeve of connection, the cover board are connected on the air inlet, and the sleeve is set in the outside of the air entrainer simultaneously
Extend towards close to the direction of the flange.
9. a kind of battery case air-leakage test aerating method, which is characterized in that pass through the electricity described in claim 1-8 any one
The aerating into battery case of pond case air-leakage test aerator, includes the following steps：
The air inlet of air entrainer is connected with air source；
Regulating part is opened, the gas in the air source is made to pass through the inside that the air entrainer is delivered to the battery case；
The aperture for changing the regulating part, to adjust aerating speed and aerating amount；
When the air pressure in the battery case reaches preset value, the regulating part is closed.
10. battery case air-leakage test aerating method according to claim 9, which is characterized in that set on the air entrainer
It is equipped with gas flowmeter, the gas flowmeter is between the gas outlet and the regulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205777.XA CN108562403A (en) | 2018-03-13 | 2018-03-13 | Battery case air-leakage test aerator and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205777.XA CN108562403A (en) | 2018-03-13 | 2018-03-13 | Battery case air-leakage test aerator and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108562403A true CN108562403A (en) | 2018-09-21 |
Family
ID=63531553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810205777.XA Pending CN108562403A (en) | 2018-03-13 | 2018-03-13 | Battery case air-leakage test aerator and method |
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| Country | Link |
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| CN (1) | CN108562403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109506856A (en) * | 2018-12-12 | 2019-03-22 | 东风时代(武汉)电池系统有限公司 | Battery pack air-tightness detection method |
| CN113405744A (en) * | 2021-06-16 | 2021-09-17 | 重庆科技学院 | Automatic detection system for air tightness of box |
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| CN113405744A (en) * | 2021-06-16 | 2021-09-17 | 重庆科技学院 | Automatic detection system for air tightness of box |
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