CN205748839U - Battery steel shell air tightness test fixture - Google Patents
Battery steel shell air tightness test fixture Download PDFInfo
- Publication number
- CN205748839U CN205748839U CN201620723466.9U CN201620723466U CN205748839U CN 205748839 U CN205748839 U CN 205748839U CN 201620723466 U CN201620723466 U CN 201620723466U CN 205748839 U CN205748839 U CN 205748839U
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- China
- Prior art keywords
- buckle
- lower mold
- ring
- box hat
- test fixture
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Abstract
This utility model provides a kind of battery steel shell air tightness test fixture, including lower mold, upper mold and buckle group, described buckle group includes at least two buckle, described buckle is circumferentially stuck in outside described box hat, and described buckle group and box hat are placed in the endoporus of described lower mold, it is embossed on described in buckle group, and produces downward pressure and make box hat be fixed in lower mold endoporus by buckle group.A kind of battery steel shell air tightness test fixture that this utility model provides, buckle group is used to be fixed in lower mold by box hat, multiple buckle splits are arranged can take out from lower mold, on the one hand different buckle groups can be equipped with according to different box hats, only need to change buckle group for different product and reduce the cost of test equipment, there is simple in construction, the advantage that easy and simple to handle, the suitability is strong.
Description
Technical field
This utility model relates to equipment for testing lithium ion cell technical field, particularly relates to a kind of battery steel shell air-tightness
Test fixture.
Background technology
Lithium ion battery is mainly made up of upper and lower covers, both positive and negative polarity, electrolyte and battery case, and battery case is divided into box hat and aluminum hull
Two kinds, it is widely used owing to box hat has the feature that concordance is good, coating is stable.Air-tightness is a weight of lithium ion battery
Want index, and the sealing of box hat, play an important role in battery entirety air-tightness.
Technique management and control in the production process of battery and quality monitoring determine the quality of product, need suitable frock
Regularly detect whether products air tightness reaches related process requirement.If battery air tightness occurs abnormal, it is easy to produce matter
Amount hidden danger, such as safety problem, leakage, get rusty, corrosion products electronic devices and components, even cause set of cells cisco unity malfunction
To such an extent as to whole group is scrapped etc..The problem that existing cylindrical lithium ion battery box hat detecting tool exists is as follows: frock is general
Property is poor, and detection efficiency is low；Can only test and be relatively fixed size battery, need the survey changing different model is installed according to the condition of production
Examination fixture, it is difficult to adapt to quickly produce and the requirement of quality monitoring.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome deficiency of the prior art, this utility model carries
A kind of simple in construction of confession, the battery steel shell air tightness test fixture that easy and simple to handle, the suitability is strong.
The technical scheme that this utility model solves its technical problem to be taken is: a kind of battery steel shell air tightness test folder
Tool, including lower mold, upper mold and buckle group, described buckle group includes that at least two buckle, described buckle are circumferentially stuck in described steel
In the annular groove of shell, and described buckle group and box hat are placed in the endoporus of described lower mold, described on be embossed in buckle group, and
Producing downward pressure makes box hat be fixed in lower mold endoporus by buckle group.Coordinated with the annular groove of box hat by buckle,
And box hat is fixed in lower mold endoporus by the downward pressure produced by upper mold, it is simple to test.
Further, owing to buckle group includes multiple buckle, upper mold can drive buckle circumference rotating shaft when rotating simultaneously, makes buckle
Position is unstable, in order to the stress making each card buckle is unanimously uniform, also includes pressure ring, is provided with in the endoporus at described pressure ring top
First bulge loop, described buckle upper end is provided with the Access Division mated with box hat annular groove, and described first bulge loop is pressed in the card of buckle
Connecing in portion, described pressure ring lower end is placed in described lower mold endoporus, described on be embossed on described pressure ring, described upper mold produces downwards
Pressure pass sequentially through pressure ring and buckle group makes box hat be fixed in lower mold endoporus.By pressure ring, multiple buckles are fixed, in rotation
When turning upper mold, owing to upper mold is not directly contacted with buckle by the isolation of pressure ring, therefore, the rotation of upper mold does not interferes with buckle
Position, it is ensured that stability that buckle and box hat are fixing and positioning precision.
Concrete, described Access Division includes that card T-Ring, described card T-Ring inwall are provided with the annular protrusion of circumference, described ring
Shape projection is stuck on described box hat annular groove, and the bottom of described card T-Ring is connected with described buckle one, and outside card T-Ring
Footpath forms electrolysis less than the external diameter of described buckle, the buckle top outside described card T-Ring.
Further, in order to realize the connection between upper mold and lower mold, and upper mold produces downward thrust, described upper mold
Inwall is provided with female thread, and described lower mold outer wall is provided with external screw thread, and described upper mold is by female thread and external screw thread and lower mold spiral shell
Stricture of vagina connects.
Further, for equilibrium air pressure, inside simulated battery, bottom described lower mold endoporus, it is provided with the second bulge loop, described
Being provided with the first passage on two bulge loops vertically, described first passage bottom is provided with air chamber.It is provided with air chamber as relief area, enters
Row buffering and gas storage.
Further, in order to ensure stablizing of air pressure, it is to avoid the abrupt change of cross-section of air-flow, described first passage and described air chamber
Junction be provided with transition part, the aperture of described transition part is gradually reduced to the first passage direction by air chamber.
Further, in order to avoid the joint face between box hat and lower mold leaks gas, the precision of impact test, described box hat and institute
The contact surface stating bulge loop is provided with sealing ring.In employing sealing ring guarantee box hat, pressed gas is airtight, in accurate simulated battery
Portion, improves the accuracy of test.
Further, in order to improve accuracy during test, the endoporus at described upper mold top is provided with the 3rd bulge loop, and the described 3rd
Bulge loop is pressed in described first bulge loop top.It is in communication with the outside in the middle part of 3rd bulge loop, it is ensured that with actual feelings in box hat test process
Condition is identical.
Further, for the ease of fixing and being connected with ambient pressure system, base and base plate, described base bottom are also included
Being fixed on base plate, described base is provided with the pressure channel connected with air chamber.
Work process:
First base plate is fixed, then base is fixed on base plate, lower mold is fixed on base and makes pressure channel
Outlet aligns with the air chamber in lower mold, is circumferentially stuck on the annular groove of box hat by buckle, and is put together with box hat by buckle
Enter in the endoporus of lower mold, then pressure ring is pressed in card and buckles, the position of buckle is fixed, it is to avoid buckle drops from box hat, on
Mould covers on pressure ring, threadeds with lower mold in upper mold lower end, makes the Distance Shortened between upper mold and lower mold by screwing upper mold, from
And oppress pressure ring downwards, make pressure ring produce downward active force, by buckle, box hat is pressed abd fixed in lower mold endoporus, then
External pressure system inputs gases at high pressure, simulated battery air pressure inside by pressure channel, makes internal pressure be maintained at a level pressure
In the range of power, monitoring box hat internal pressure by pressure system, in Preset Time, the excursion of box hat internal pressure is permitting
In the range of Xuing, then explanation box hat sealing is good, box hat qualified, otherwise defective.
The beneficial effects of the utility model are: a kind of battery steel shell air tightness test fixture that this utility model provides, and adopt
Being fixed in lower mold by box hat by buckle group, multiple buckle splits are arranged can take out from lower mold, on the one hand can be according to not
Same box hat is equipped with different buckle groups, only need to change buckle group for different product and reduce the cost of test equipment, have
Simple in construction, the advantage that easy and simple to handle, the suitability is strong.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of box hat；
Fig. 2 is the structural representation of this utility model most preferred embodiment；
Fig. 3 is the test fixture superstructure schematic diagram without pressure ring；
Fig. 4 is the enlarged diagram in Fig. 3 at A；
Fig. 5 is the test fixture superstructure schematic diagram having pressure ring；
Fig. 6 is the enlarged diagram in Fig. 5 at B；
Fig. 7 is the structural representation of lower mold；
Fig. 8 is the structural representation that base plate is overlooked；
Fig. 9 is the structural representation that base is overlooked.
In figure: 1, box hat, 1-1, body, 1-2, annular groove, 2, lower mold, 2-1, external screw thread, 2-2, the second bulge loop, 2-3,
First passage, 2-4, air chamber, 2-5, transition part, 3, upper mold, 3-1, female thread, 3-2, the 3rd bulge loop, 4, buckle, 4-1, clamping
Ring, 4-2, annular protrusion, 4-3, electrolysis, 5, pressure ring, 5-1, the first bulge loop, 6, sealing ring, 7, base, 7-1, the 3rd screw thread
Hole, 7-2, pressure channel, 8, base plate, 8-1, the first screwed hole, 8-2, the second screwed hole.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in detail.This figure is the schematic diagram simplified, the most in a schematic way
Basic structure of the present utility model is described, therefore it only shows the composition relevant with this utility model.
As it is shown in figure 1, this utility model box hat 1 to be tested includes that body 1-1 and annular groove 1-2, body 1-1 are
The cylinder of hollow, uses steel material to make, and annular groove 1-2 is positioned at body 1-1 top.
As in Figure 2-4, a kind of battery steel shell air tightness test fixture of the present utility model, including lower mold 2, upper mold 3 and
Buckle group, described buckle group includes that at least two buckle 4, described buckle 4 are circumferentially stuck in the outside of described box hat 1, and described
Buckle group and box hat 1 are placed in the endoporus of described lower mold 2, and described upper mold 3 is pressed in buckle group, and produce downward pressure and pass through
Buckle group makes box hat 1 be fixed in lower mold 2 endoporus.In the present embodiment, described buckle group includes two semicolumn buckles 4, two halves
Cylinder buckle 4 is stuck in outside box hat 1 relatively.Described buckle 4 upper end is provided with the Access Division mated with box hat 1 annular groove 1-2, institute
State Access Division and include that card T-Ring 4-1, described card T-Ring 4-1 inwall are provided with the annular protrusion 4-2, described annular protrusion 4-of circumference
2 are stuck in described box hat 1 annular groove 1-2, and the bottom of described card T-Ring 4-1 is connected with described buckle 4 one, and card T-Ring 4-
The external diameter of 1 is less than the external diameter of described buckle 4, and electrolysis 4-3 is formed on buckle 4 top outside described card T-Ring 4-1, such as Fig. 4 institute
Showing, the 3rd bulge loop 3-2 of upper mold 3 is pressed on electrolysis 4-3.
As shown in Figure 2, Figure 5 and Figure 6, battery steel shell air tightness test fixture also includes pressure ring 5, described pressure ring 5 top
Endoporus is provided with the first bulge loop 5-1, described first bulge loop 5-1 be pressed on the electrolysis 4-3 of buckle 4 Access Division, described pressure ring 5 times
End is placed in described lower mold 2 endoporus, and the endoporus at described upper mold 3 top is provided with the 3rd bulge loop 3-2, described 3rd bulge loop 3-2 and is pressed in
Described first bulge loop 5-1 top, described upper mold 3 is pressed on described pressure ring 5 by the 3rd bulge loop 3-2, and described upper mold 3 produces downwards
Pressure pass sequentially through all buckles 4 of pressure ring 5 and buckle group and make box hat 1 be fixed in lower mold 2 endoporus.
Described upper mold 3 inwall is provided with female thread 3-1, and described lower mold 2 outer wall is provided with external screw thread 2-1, and described upper mold 3 is led to
Cross female thread 3-1 and external screw thread 2-1 to threaded with lower mold 2.
It is provided with the second bulge loop 2-2 bottom described lower mold 2 endoporus, described second bulge loop 2-2 is provided with the first ventilation vertically
Hole 2-3, described first passage 2-3 bottom is provided with air chamber 2-4.As it is shown in fig. 7, described first passage 2-3 and described air chamber
The junction of 2-4 is provided with transition part 2-5, and the aperture of described transition part 2-5 is by air chamber 2-4 to the first passage 2-3 direction gradually
Reduce.Described box hat 1 is provided with sealing ring 6 with the contact surface of described second bulge loop 2-2.
As shown in Fig. 2, Fig. 8 and Fig. 9, also including base 7 and base plate 8, described base plate 8 is rectangular slab, and four angles are provided with
First screwed hole 8-1, can be fixed base plate 8 by the first screwed hole 8-1, be additionally provided with in the middle part of base plate 8 four for base 7
The the second screwed hole 8-2 connected, described base 7 bottom is provided with the 3rd screwed hole 7-1 and the second screwed hole 8-2 on base plate 8
Position is corresponding, will be fixed on bottom base 7 on base plate 8 by screw, and described base 7 is provided with the pressure connected with air chamber 2-4
Passage 7-2, pressure channel 7-2 are connected with outside pressure system.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant work
Personnel can carry out various change and amendment completely in the range of without departing from this utility model.This utility model
Technical scope is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (9)
1. a battery steel shell air tightness test fixture, it is characterised in that: include lower mold (2), upper mold (3) and buckle group, described
In buckle group includes the annular groove (1-2) that at least two buckle (4), described buckle (4) are circumferentially stuck in described box hat (1),
And described buckle group and box hat (1) are placed in the endoporus of described lower mold (2), described upper mold (3) is pressed in buckle group, and produce to
Under pressure make box hat (1) be fixed in lower mold (2) endoporus by buckle group.
2. battery steel shell air tightness test fixture as claimed in claim 1, it is characterised in that: also include pressure ring (5), described pressure
Being provided with the first bulge loop (5-1) in the endoporus at ring (5) top, described buckle (4) upper end is provided with the annular groove (1-with box hat (1)
2) Access Division mated, described first bulge loop (5-1) is pressed on the Access Division of buckle (4), and described pressure ring (5) lower end is placed in described
In lower mold (2) endoporus, described upper mold (3) is pressed on described pressure ring (5), and described upper mold (3) produces downward pressure and passes sequentially through
Pressure ring (5) and buckle group make box hat (1) be fixed in lower mold (2) endoporus.
3. battery steel shell air tightness test fixture as claimed in claim 2, it is characterised in that: described Access Division includes card T-Ring
(4-1), described card T-Ring (4-1) inwall is provided with the annular protrusion (4-2) of circumference, and described annular protrusion (4-2) is stuck in described
On the annular groove (1-2) of box hat (1), the bottom of described card T-Ring (4-1) is connected with described buckle (4) one, and card T-Ring
(4-1) external diameter forms electrolysis less than the external diameter of described buckle (4), buckle (4) top in described card T-Ring (4-1) outside
(4-3)。
4. battery steel shell air tightness test fixture as claimed in claim 2, it is characterised in that: set on described upper mold (3) inwall
Having female thread (3-1), described lower mold (2) outer wall to be provided with external screw thread (2-1), described upper mold (3) is by female thread (3-1) and outward
Screw thread (2-1) is threadeded with lower mold (2).
5. battery steel shell air tightness test fixture as claimed in claim 2, it is characterised in that: bottom described lower mold (2) endoporus
It is provided with the second bulge loop (2-2), described second bulge loop (2-2) is provided with the first passage (2-3), described first passage vertically
(2-3) bottom is provided with air chamber (2-4).
6. battery steel shell air tightness test fixture as claimed in claim 5, it is characterised in that: described first passage (2-3)
Be provided with transition part (2-5) with the junction of described air chamber (2-4), the aperture of described transition part (2-5) by air chamber (2-4) to first
Passage (2-3) direction is gradually reduced.
7. battery steel shell air tightness test fixture as claimed in claim 5, it is characterised in that: described box hat (1) is convex with described
The contact surface of ring is provided with sealing ring (6).
8. battery steel shell air tightness test fixture as claimed in claim 5, it is characterised in that: described upper mold (3) top interior
Hole is provided with the 3rd bulge loop (3-2), and described 3rd bulge loop (3-2) is pressed in described first bulge loop (5-1) top.
9. battery steel shell air tightness test fixture as claimed in claim 5, it is characterised in that: also include base (7) and base plate
(8), described base (7) bottom is fixed on base plate (8), and described base (7) is provided with the pressure channel connected with air chamber (2-4)
(7-2)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620723466.9U CN205748839U (en) | 2016-07-08 | 2016-07-08 | Battery steel shell air tightness test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620723466.9U CN205748839U (en) | 2016-07-08 | 2016-07-08 | Battery steel shell air tightness test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205748839U true CN205748839U (en) | 2016-11-30 |
Family
ID=57378914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620723466.9U Active CN205748839U (en) | 2016-07-08 | 2016-07-08 | Battery steel shell air tightness test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205748839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345163A (en) * | 2020-10-16 | 2021-02-09 | 天津七所高科技有限公司 | Device and method for detecting air leakage position of welding seam of lower cover of automobile battery box |
-
2016
- 2016-07-08 CN CN201620723466.9U patent/CN205748839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345163A (en) * | 2020-10-16 | 2021-02-09 | 天津七所高科技有限公司 | Device and method for detecting air leakage position of welding seam of lower cover of automobile battery box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213000 11 and 11-1 Jinghu Road, Wujin national hi tech Industrial Development Zone, Changzhou, Jiangsu, China Patentee after: Changzhou Wujin Zhong Rui electronic Polytron Technologies Inc Address before: 213161 801 people's road, Wujin District, Changzhou, Jiangsu Patentee before: Changzhou Wujin Zhongrui Electronics Co.,Ltd. |
|
| CP03 | Change of name, title or address |