CN106505166A - Valve device, battery pack shell and electric automobile - Google Patents
Valve device, battery pack shell and electric automobile Download PDFInfo
- Publication number
- CN106505166A CN106505166A CN201611055461.4A CN201611055461A CN106505166A CN 106505166 A CN106505166 A CN 106505166A CN 201611055461 A CN201611055461 A CN 201611055461A CN 106505166 A CN106505166 A CN 106505166A
- Authority
- CN
- China
- Prior art keywords
- hole
- valve
- inner core
- valve inner
- battery pack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012856 packing Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4228—Leak testing of cells or batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention provides a valve device, a battery pack shell and an electric automobile. The valve device includes: the air valve is fixedly connected with the battery can shell through an air valve nut; a stepped bore passing through the valve; the valve inner core is positioned in the step hole and forms a preset clearance with the inner wall of the step hole, a through hole is formed in the valve inner core, the first end of the through hole is positioned on the side wall of the valve inner core, and the second end of the through hole is positioned on the upper end face of the valve inner core; the elastic pressure plate is sleeved on the upper part of the valve inner core and is in contact connection with the step surface of the step hole; the inner core nut is positioned above the elastic pressing plate and sleeved on the valve inner core, and the inner core nut is in contact connection with the elastic pressing plate; and the gasket is sleeved at the lower part of the valve inner core and is matched with the structure at the lower part of the valve inner core. The invention can realize the sealing of the battery pack, can also realize the detection of the sealing performance of the battery pack, improves the detection efficiency and is convenient for searching the leakage position.
Description
Technical field
The present invention relates to electric automobile power battery system technical field, more particularly to a kind of valve gear, battery bag
Housing and electric automobile.
Background technology
With the development of electric automobile, core component of the electrokinetic cell as electric automobile, its battery bag or battery
It is safe that sealing directly influences using for the work safety and electric automobile of battery system.So, the design of battery bag and close
The test of envelope property is just particularly important.
At present, for the detection of battery bag sealing property is present, efficiency is low, and the lookup of leak position is more difficult asks
Topic.
Content of the invention
It is an object of the invention to provide a kind of valve gear, battery pack housing and electric automobile, so as to solve existing skill
In art, the detection efficiency of battery bag sealing property is low, and reveals the difficult problem of the lookup of position.
In order to solve above-mentioned technical problem, the embodiment of the present invention is adopted the following technical scheme that：
A kind of valve gear, including：
The valve being fixedly connected with battery pack housing by valve nut；
Stepped hole through the valve；
It is located in the stepped hole, and the valve inner core with the inwall formation prepsetting gap of the stepped hole, the valve
Through hole is provided with inner core, and the first end of the through hole is located at the side wall of the valve inner core, and the second end of the through hole is located at
The upper surface of the valve inner core；
It is sheathed on the top of the valve inner core, and the spring bearer plate being connected with the step surface contact of the stepped hole；
Be located above the spring bearer plate, and the inner core nut being sheathed on the valve inner core, the inner core nut with
The spring bearer plate contact connection；
It is sheathed on the valve inner core bottom, and the packing ring being engaged with the structure of the bottom of the valve inner core.
Wherein, the first end of the through hole is located at the lower section of the spring bearer plate.
Wherein, the structure on the top of the valve inner core is cylinder, and the through hole includes：First through hole and second is led to
Hole；
The first through hole and second through hole extend upwardly to the cylinder by the side wall of the cylinder
Upper surface；
The first end of the first end of the first through hole and second through hole is respectively positioned on the side wall of the cylinder, and
It is symmetrical arranged；
Second end of the second end of the first through hole and second through hole overlaps, and is respectively positioned on the cylinder
Upper surface.
Wherein, the structure of the bottom of the valve inner core is Rotary-table；
The upper surface diameter of the Rotary-table and the equal diameters of the cylinder；
Upper surface diameter of the lower surface of the Rotary-table with diameter greater than the Rotary-table.
Wherein, annular protrusion is formed between the bottom of the top of the valve inner core and the valve inner core.
Wherein, the stepped hole includes：First hole portion and the second hole portion being connected with first hole portion, first hole
The diameter with diameter greater than second hole portion in portion；
Second hole portion is formed with the step surface with the junction of first hole portion.
Wherein, height of the hole depth of the stepped hole more than the valve inner core.
Wherein, the packing ring is rubber washer.
The present invention also provides a kind of battery pack housing, including：Valve gear as described above.
The present invention also provides a kind of electric automobile, including：Battery pack housing as described above.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In the such scheme of the embodiment of the present invention, by arranging valve gear on battery pack housing, not to battery bag
During interior insufflation gas, in the presence of the elastic force of spring bearer plate so that valve inner core is fitted close by packing ring with valve, realize
The sealing of battery bag；In the through hole by being arranged on valve inner core, into battery bag during insufflation gas, can achieve to battery bag
Sealing property detection, improve detection efficiency, the convenient lookup for revealing position.
Description of the drawings
Profiles of the Fig. 1 for the valve gear of the embodiment of the present invention；
Explosive views of the Fig. 2 for Fig. 1；
Structural representations of the Fig. 3 for Fig. 1
Description of reference numerals：
1- valve nuts；2- battery pack housings；3- valves；4- stepped holes；5- valve inner cores；6- spring bearer plates；7- inner cores
Nut；8- packing rings；9- annular protrusions；51- first through hole；The second through holes of 52-.
Specific embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As Figure 1-3, the invention discloses a kind of valve gear, including：By valve nut 1 and battery pack housing 2
The valve 3 being fixedly connected；
Here, arrange one to be open on battery pack housing 2, the opening is used for passing through for the bottom of valve 3, with battery pack housing
2 inwall is brought into close contact.Namely the bottom of valve 3 is located in battery pack housing 2, so, is easy to external pressurized device to pass through
With the valve gear that can be connected inside battery bag to insufflation gas in battery bag.
Stepped hole 4 through valve 3；It is located in stepped hole 4, and the valve with the inwall formation prepsetting gap of stepped hole 4
Inner core 5；
Wherein, through hole is provided with valve inner core 5, and the first end of through hole is located at the side wall of valve inner core 5, the second of through hole
End is located at the upper surface of valve inner core 5；
Here, the through hole for arranging on valve inner core 5 passes through the through hole to electricity as gas passage for external pressurized device
Insufflation gas in the bag of pond.
It is sheathed on the top of valve inner core 5, and the spring bearer plate 6 being connected with the step surface contact of stepped hole 4；
Here, spring bearer plate 6 is used for valve inner core 5 to be erected in valve 3, and the step surface of stepped hole 4 is to spring bearer plate 6
And certain supporting role is played together with valve inner core 5.
It is located above spring bearer plate 6, and the inner core nut 7 being sheathed on valve inner core 5, inner core nut 7 and spring bearer plate 6
Contact connection；It is sheathed on the bottom of valve inner core 5, and the packing ring 8 being engaged with the structure of the bottom of valve inner core 5.
Explanation is needed exist for, as shown in figure 1, after inner core nut 7 is tightened, 6 deformation of spring bearer plate is produced and hinders bullet
The elastic force upwards of property 6 deformation of pressing plate, now, valve inner core 5 under force to battery bag out-draw, press by valve inner core 5
Contracting packing ring 8, valve inner core 5 is fitted close with valve 3, realizes the sealing of battery bag and the holding of pressure in battery bag.Also
It is to say, packing ring 8 now plays sealing function.
Specifically, the first end of through hole is located at the lower section of spring bearer plate 6.
Here it should be noted that, the first end of through hole is located at the lower section of spring bearer plate 6, it is therefore an objective to logical in outside pressue device
When crossing through hole inflation, gas enters from the second end of through hole, and first brings out, and enters into by spring bearer plate 6, valve inner core 5 and gas
In the air chamber that door 3 is formed.
Preferably, as shown in Figures 1 and 2, the structure on the top of valve inner core 5 is cylinder, and through hole includes：First through hole
51 and second through hole 52.
Here, first through hole 51 and the second through hole 52 extend upwardly to the upper of the cylinder by the side wall of the cylinder
End face；The first end of the first end of first through hole 51 and the second through hole 52 is respectively positioned on the side wall of the cylinder, and is symmetrical arranged；
Second end of the second end of first through hole 51 and the second through hole 52 overlaps, and is respectively positioned on the upper surface of the cylinder.
Need exist for explanation, in the embodiment of the present invention as gas passage through hole, the through hole have a gas
Import, two gas vents.Here, gas feed is located at the upper surface of the cylinder, and gas vent is located at the side of the cylinder
Wall, and be symmetrical arranged, that is, first through hole 51 and the second through hole 52.
Preferably, as shown in Figures 1 and 2, the structure of the bottom of valve inner core 5 is Rotary-table；The upper surface of the Rotary-table
Diameter and the equal diameters of cylinder；Upper surface diameter of the lower surface of the Rotary-table with diameter greater than the Rotary-table.
Here, as shown in Fig. 2 being set in the structure of the packing ring 8 of the bottom of valve inner core 5 and the Rotary-table matches.
Specifically, annular protrusion 9 is formed between the bottom of the top of valve inner core 5 and valve inner core 5.
Here, annular protrusion 9 plays position-limiting action, can limit the installation site of packing ring 8 and towards the upper of valve inner core 5
The moveable distance in portion direction.
More specifically, stepped hole 4 includes：First hole portion and the second hole portion being connected with first hole portion, described first
The diameter with diameter greater than second hole portion of hole portion；Second hole portion is formed with step with the junction of first hole portion
Face.
Here it should be noted that, the first hole portion and the second hole portion are arranged along the top order of valve 3.
Here, when the preferred structure of the valve inner core 5 using the present invention, as shown in figure 1, the structure of the second hole portion and gas
Door inner core 5 be engaged, i.e., the top half of the second hole portion be diameter less than the first hole portion cylindrical hole, the latter half be diameter by
Cumulative big round platform hole.Here, the diameter of the circular hole of the lower end surface of the second hole portion is straight less than or equal to the circular hole of the first hole portion
Footpath.
Specifically, height of the hole depth of stepped hole 4 more than valve inner core 5.So, do not affect and be conducive to outside battery bag
Electric automobile on other parts layout designs.
Preferably, the packing ring 8 of the embodiment of the present invention is rubber washer.
The process of the sealing propertytest for applying the valve gear to carry out battery bag is specifically described below.
First, using external pressurized device, gas is filled with the through hole of valve inner core 5, now, valve 3, valve inner core
Air chamber is formed between 5 and spring bearer plate 6.
Produced when the gas pressure being filled with air chamber is deformed upon more than spring bearer plate 6 hinders its deformation upwards
Elastic force when, back down valve inner core 5, the sealant that valve 3 and packing ring 8 are formed, inflate into battery bag.
When air chamber is detected and the pressure in battery bag reaches balance, that is, predetermined pressure is reached in battery bag, this
When, as the pressure in battery bag is more than the pressure outside battery bag, the Rotary-table structure of the bottom of valve inner core 5 in addition can be real
The self-locking of existing valve, while inner core nut 7 is acted on the thrust of spring bearer plate 6, can be further ensured that the self-locking of valve, also
It is to re-form sealant between valve inner core 5, valve 3 and packing ring 8.
Here, a period of time after, detect again, if the pressure in battery bag still greater than battery bag outside pressure, electricity is described
Sealing in the bag of pond is good；If the pressure in battery bag is equal to the pressure outside battery bag, the sealing in battery bag is described
Difference.
Certainly, it can be coloured innocuous gas to be filled into the gas inside battery bag by external pressurized device, if
Observing has the coloured gas of the tool to get out from housing on battery pack housing 2, then the sealing in explanation battery bag is poor, and
And so can find out to intuitive and convenient the concrete leakage position of battery bag.
The embodiment of the present invention also provides a kind of battery pack housing, is provided with an opening, including as described in above-mentioned embodiment
Valve gear, the bottom of the valve gear are contacted with the inwall of battery pack housing by the opening.
The embodiment of the present invention also provides a kind of electric automobile, including the battery pack housing as described in above-mentioned embodiment.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of valve gear, it is characterised in that include：
The valve (3) being fixedly connected with battery pack housing (2) by valve nut (1)；
Stepped hole (4) through the valve (3)；
It is located in the stepped hole (4), and the valve inner core (5) with the inwall formation prepsetting gap of the stepped hole (4), described
Through hole is provided with valve inner core (5), and the first end of the through hole is located at the side wall of valve inner core (5), the through hole
Second end is located at the upper surface of valve inner core (5)；
It is sheathed on the top of valve inner core (5), and the spring bearer plate being connected with the step surface contact of the stepped hole (4)
(6)；
It is located above the spring bearer plate (6), and the inner core nut (7) being sheathed on valve inner core (5), the inner core spiral shell
Female (7) are connected with the spring bearer plate (6) contact；
It is sheathed on the bottom of valve inner core (5), and the packing ring being engaged with the structure of the bottom of valve inner core (5)
(8).
2. valve gear according to claim 1, it is characterised in that the first end of the through hole is located at the spring bearer plate
(6) lower section.
3. valve gear according to claim 1, it is characterised in that the structure on the top of valve inner core (5) is circle
Cylinder, the through hole include：First through hole (51) and the second through hole (52)；
First through hole (51) and second through hole (52) extend upwardly to the circle by the side wall of the cylinder
The upper surface of cylinder；
The first end of the first end of first through hole (51) and second through hole (52) is respectively positioned on the side of the cylinder
Wall, and be symmetrical arranged；
Second end of second end of first through hole (51) and second through hole (52) overlaps, and is respectively positioned on the cylinder
The upper surface of body.
4. valve gear according to claim 3, it is characterised in that the structure of the bottom of valve inner core (5) is circle
Stage body；
The upper surface diameter of the Rotary-table and the equal diameters of the cylinder；
Upper surface diameter of the lower surface of the Rotary-table with diameter greater than the Rotary-table.
5. valve gear according to claim 1, it is characterised in that the top of valve inner core (5) and the valve
Annular protrusion (9) is formed between the bottom of inner core (5).
6. valve gear according to claim 1, it is characterised in that stepped hole (4) include：First hole portion and with institute
State the second hole portion that the first hole portion is connected, the diameter with diameter greater than second hole portion of first hole portion；
Second hole portion is formed with the step surface with the junction of first hole portion.
7. valve gear according to claim 1, it is characterised in that the hole depth of stepped hole (4) is more than the valve
The height of inner core (5).
8. valve gear according to claim 1, it is characterised in that described packing ring (8) are rubber washer.
9. a kind of battery pack housing, it is characterised in that include：Valve gear as described in any one of claim 1～8.
10. a kind of electric automobile, it is characterised in that include：Battery pack housing as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055461.4A CN106505166B (en) | 2016-11-25 | 2016-11-25 | Valve device, battery pack shell and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055461.4A CN106505166B (en) | 2016-11-25 | 2016-11-25 | Valve device, battery pack shell and electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106505166A true CN106505166A (en) | 2017-03-15 |
| CN106505166B CN106505166B (en) | 2019-03-15 |
Family
ID=58328853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611055461.4A Active CN106505166B (en) | 2016-11-25 | 2016-11-25 | Valve device, battery pack shell and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106505166B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216912A (en) * | 2020-01-20 | 2021-01-12 | 蜂巢能源科技有限公司 | Battery, battery pack, and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0799045A (en) * | 1993-09-29 | 1995-04-11 | Hitachi Maxell Ltd | Square sealed storage battery |
| JPH097558A (en) * | 1995-06-16 | 1997-01-10 | Furukawa Battery Co Ltd:The | Manufacture of sealed battery |
| CN201476943U (en) * | 2009-06-26 | 2010-05-19 | 厦门永裕机械工业有限公司 | Seal detection clamp of sealed container |
| CN102097603A (en) * | 2011-01-12 | 2011-06-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cover plate |
| CN201877473U (en) * | 2010-11-30 | 2011-06-22 | 襄樊金博泰塑业有限公司 | Cover plate for lithium battery |
| CN203932167U (en) * | 2014-06-23 | 2014-11-05 | 中航锂电（洛阳）有限公司 | The detachable safety valve of electrokinetic cell |
-
2016
- 2016-11-25 CN CN201611055461.4A patent/CN106505166B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0799045A (en) * | 1993-09-29 | 1995-04-11 | Hitachi Maxell Ltd | Square sealed storage battery |
| JPH097558A (en) * | 1995-06-16 | 1997-01-10 | Furukawa Battery Co Ltd:The | Manufacture of sealed battery |
| CN201476943U (en) * | 2009-06-26 | 2010-05-19 | 厦门永裕机械工业有限公司 | Seal detection clamp of sealed container |
| CN201877473U (en) * | 2010-11-30 | 2011-06-22 | 襄樊金博泰塑业有限公司 | Cover plate for lithium battery |
| CN102097603A (en) * | 2011-01-12 | 2011-06-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cover plate |
| CN203932167U (en) * | 2014-06-23 | 2014-11-05 | 中航锂电（洛阳）有限公司 | The detachable safety valve of electrokinetic cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216912A (en) * | 2020-01-20 | 2021-01-12 | 蜂巢能源科技有限公司 | Battery, battery pack, and vehicle |
| CN112216912B (en) * | 2020-01-20 | 2022-04-29 | 蜂巢能源科技有限公司 | Battery, battery pack, and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106505166B (en) | 2019-03-15 |
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