CN217819233U

CN217819233U - Aluminum-shell large battery helium detection sealing device

Info

Publication number: CN217819233U
Application number: CN202123413496.XU
Authority: CN
Inventors: 侯博闻; 张亚儒; 刘江伊
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-11-15
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a leakproofness device is examined to big battery helium of aluminum hull, the device include the bottom suspension fagging, go up backup pad, two collateral branch backup pads that are used for supporting bottom suspension fagging and last backup pad, set up at the cylinder at last backup pad middle part, set up the cylinder switch at last backup pad left part and place the accredited testing organization in the space that forms between bottom suspension fagging and last backup pad, accredited testing organization include test briquetting down, go up test briquetting, set up at the sealing washer on last test briquetting, set up at the locating pin of last test briquetting lower surface, set up at the vacuum pumping spare of last test briquetting front side, set up the helium inflation spare of test briquetting front side down and be used for the side dog of fixed product, compare with prior art, the utility model has the advantages of simple structure is reliable, the processing cost is low, easily operation, process safety and effectively improve efficiency of software testing.

Description

Aluminum-shell large battery helium detection sealing device

Technical Field

The utility model belongs to the technical field of battery utmost point post leakproofness detects technique and specifically relates to a leakproofness device is examined to big battery helium of aluminum hull.

Background

The sealing performance of the pole is detected as a key link in the manufacturing process of the battery shell, after the aluminum shell and the cover plate after stamping are welded, the aluminum shell and the cover plate are compressed by means of tool matching, the pole and the sealing ring are subjected to vacuumizing test at the same time, and then helium test is carried out, so that whether the air tightness of a product meets requirements is judged.

In the prior art, a cover plate is welded on a shell firstly, the tightness is tested after inflation, the testing efficiency is low, and the shell is easy to deform in the testing process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a leakproofness device is examined to big battery helium of aluminum hull in order to overcome the defect that above-mentioned prior art exists, the device is simple reliable, can ensure the accuracy of the upper and lower cooperation position of frock, ensures that the casing does not take place to warp.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a big battery helium of aluminum hull examines leakproofness device, the device include the bottom suspension fagging, go up backup pad, two collateral branch backup pads that are used for supporting bottom suspension fagging and last backup pad, set up at the cylinder at last backup pad middle part, set up at the cylinder switch of last backup pad left part and place the accredited testing organization in the space that forms between bottom suspension fagging and last backup pad, accredited testing organization including test briquetting down, go up the test briquetting, set up the sealing washer on last test briquetting, set up the locating pin of last test briquetting lower surface, set up at the helium gas filling spare of last test briquetting front side, set up the side dog that tests the briquetting front side under and be used for fixed product.

Every the collateral branch backup pad respectively fixed set up the tip about the bottom suspension fagging, and the upside and the last backup pad fixed connection of collateral branch backup pad.

The air cylinder is internally provided with a push-pull rod, the center of the upper supporting plate is provided with a round hole for penetrating through the push-pull rod, and the push-pull rod moves up and down in the round hole at the center of the upper supporting plate under the control of an air cylinder switch.

Lower test briquetting upside middle part be equipped with a ladder groove, the ladder groove constitute by the first bar groove that link up each other and the second bar groove in first bar groove top, the inner space in second bar groove for test briquetting's vacuum pumping cavity down, test briquetting's second bar groove front side is opened and is established a first through-hole that is used for installing vacuum pumping spare down.

The vacuum pumping piece is arranged at the position corresponding to the first through hole on the front side of the lower test pressing block, and the vacuum pumping piece pumps gas in the vacuum pumping cavity through the first through hole.

Go up test briquetting bottom surface middle part be equipped with one and be used for inlaying the sealing washer recess of establishing the sealing washer, and the degree of depth of sealing washer recess is less than the thickness of sealing washer, the inside third bar groove that is equipped with one and sealing washer recess intercommunication of sealing washer recess, the inner space in third bar groove is the helium inflation chamber of last test briquetting, the second perforating hole that is used for installing helium inflation spare is seted up to the front side of the third bar inslot of going up test briquetting (6).

And the helium gas filling piece is arranged at the position corresponding to the second through hole on the front side of the upper test pressing block, and the helium gas filling piece fills helium gas into the helium gas filling cavity through the second through hole.

The sealing ring is characterized in that a sealing ring hole is formed in the middle of the sealing ring at the position corresponding to the third strip-shaped groove, the sealing ring hole is the same as the cross sections of the second strip-shaped groove and the third strip-shaped groove in shape, the cross sections of the second strip-shaped groove, the sealing ring hole and the third strip-shaped groove are corresponding in position, and a test piece accommodating cavity used for accommodating a test part of a product is formed in the inner cavity of the second strip-shaped groove, the sealing ring hole and the space between the second strip-shaped groove and the sealing ring hole.

The thickness of sealing washer be 5mm, the degree of depth of sealing washer recess be 4.2mm, sealing washer and sealing washer recess cooperation reserve 0.8 mm's thickness, last test briquetting and test briquetting's length down be 240mm.

The side dog have the bar piece of bellying for one side, and the side dog passes through the bellying and the lower surface of bolt and last test briquetting rear side is connected, side dog and test briquetting rear side plane cooperation down press from both sides tight product to prevent that the cylinder from compressing tightly the side perk of back product.

Compared with the prior art, the utility model has the advantages of it is following:

1. the structure is simple and reliable, the processing cost is low, the operation is easy, the process is safe, and the testing efficiency can be effectively improved.

2. The upper pressing block test fidelity hole is independently designed, and the utilization rate of products is improved.

3. The double-pin positioning ensures the accuracy of the upper and lower matching positions of the tool and improves the reliability of the testing process.

4. The mechanism tests and screens unqualified products in advance, and ensures the yield of products in the subsequent process.

5. The designed upper and lower pressing blocks, the sealing ring and the frame are perfectly attached, and deformation and damage are avoided in the testing process.

Drawings

Fig. 1 is a schematic structural diagram of a helium testing tightness device for a large aluminum-shell battery in the embodiment;

fig. 2 is a schematic diagram of a rear view 3D structure of the testing mechanism of the present invention;

fig. 3 is a schematic bottom view of the 3D structure of the testing mechanism of the present invention;

fig. 4 is a schematic view of the front view 3D structure of the present invention when testing a product;

FIG. 5 is a schematic view of the top view structure of the present invention when testing the product;

fig. 6 is the utility model discloses back vision 3D structure schematic diagram when testing the product.

Labeled as: 1. the bottom suspension plate, 2, the collateral branch backup pad, 3, go up the backup pad, 4, the cylinder, 5, cylinder switch, 6, go up the test briquetting, 7, locating pin, 8, sealing washer, 9, side dog, 10, test briquetting, 11, product down.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

The embodiment provides a leakproofness device is examined to big battery helium of aluminum hull, the device includes bottom suspension fagging 1, go up backup pad 3, two collateral branch backup pads 2 that are used for supporting bottom suspension fagging 1 and last backup pad 3, the cylinder 4 of setting at last backup pad 3 middle part, the cylinder switch 5 that sets up at last backup pad 3 left part and place the accredited testing organization in the space that forms between bottom suspension fagging 1 and last backup pad 3, for the leakproofness of test big battery of aluminum hull, accredited testing organization includes test briquetting 10 down, go up test briquetting 6, the setting is at the sealing washer 8 on last test briquetting 6, the setting is at the locating pin 7 of last test briquetting 6 lower surface and the side dog 9 that is used for fixed product 11.

As shown in fig. 1, each side supporting plate 2 is respectively fixed at the left and right ends of the lower supporting plate 1, and the upper side of the side supporting plate is respectively fixedly connected with the upper supporting plate 3, a push-pull rod is arranged in the control cylinder 4, a circular hole for passing through the push-pull rod is arranged at the center of the upper supporting plate 3, and the push-pull rod moves up and down in the circular hole at the center of the upper supporting plate 3 under the control of the cylinder switch 5.

As shown in fig. 2, a first step groove is formed in the middle of the upper side of the lower test pressing block 10, the first step groove is formed by a first strip-shaped groove and a second strip-shaped groove, the first strip-shaped groove is communicated with the second strip-shaped groove, the inner space of the second strip-shaped groove is a vacuum pumping cavity of the lower test pressing block 10, a first through hole for installing a vacuum pumping piece is formed in the front side of the second strip-shaped groove of the lower test pressing block 10, the vacuum pumping piece is arranged at a position corresponding to the first through hole in the front side of the lower test pressing block 10, and the vacuum pumping piece pumps gas in the vacuum pumping cavity through the first through hole;

go up test briquetting 6 downside middle part and be equipped with one and be used for inlaying the sealing washer recess of establishing sealing washer 8, and the degree of depth of sealing washer recess is less than the thickness of sealing washer 8, the inside third bar groove that is equipped with one and sealing washer recess intercommunication of sealing washer recess, the inner space in third bar groove is the helium inflation chamber of last test briquetting 6, the third bar groove front side of going up test briquetting 6 is opened and is established a second perforating hole that is used for installing the helium inflation spare, the helium inflation spare sets up the second perforating hole corresponding position department at last test briquetting 6 front side, the helium inflation spare fills the helium inflation chamber with the helium through the second perforating hole, it is equipped with a locating pin 7 that is used for guaranteeing device reliable positioning respectively to go up the left and right parts of test briquetting 6 downside.

A seal ring hole is formed in the middle of the seal ring 8 at the corresponding position of the third strip-shaped groove, the shapes of the second strip-shaped groove, the cross section of the third strip-shaped groove and the seal ring hole are the same, the positions of the cross sections of the second strip-shaped groove, the seal ring hole and the third strip-shaped groove are corresponding, and the second strip-shaped groove, the seal ring hole and the space between the second strip-shaped groove and the seal ring hole form a test piece accommodating cavity used for accommodating a test part of the product 11.

The depth of the sealing ring groove is 4.2mm, the thickness of the sealing ring 8 is 5mm, the thickness of the sealing ring is 0.8mm by matching with the upper test pressing block groove, the lengths of the upper test pressing block 6 and the lower test pressing block 10 are both 240mm,

the side stop block 9 is a strip-shaped block with a protruding part on one side, the protruding part of the side stop block 9 is connected with the lower surface of the rear side of the upper test pressing block 6 through a bolt and matched with the plane of the rear side of the lower test pressing block 10 to clamp the product 11, and the side edge of the product 11 after the air cylinder 4 is pressed is prevented from tilting.

The working mode of the device is as follows:

placing a test piece of a product 11 on the lower test pressing block 10, wherein the test piece of the product 11 is positioned in the test piece accommodating cavity;

assembling the upper test pressing block 6 and the side stop block 9 together, and enabling the side stop block 9 to be tightly attached to the rear side of the product 11;

placing the assembled product and the testing mechanism on the lower supporting plate 1;

controlling the cylinder to be switched on, and opening the cylinder to tightly press the upper test pressing block 6 and the lower test pressing block 10 so as to ensure the sealing property;

carrying out a vacuum sealing test: vacuumizing through a vacuum vacuumizing piece of the upper test pressing block 6;

performing a helium sealing test: the helium charge passed through the lower test block 10 was filled with helium.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The device is characterized by comprising a lower supporting plate (1), an upper supporting plate (3), two side supporting plates (2) for supporting the lower supporting plate (1) and the upper supporting plate (3), a cylinder (4) arranged in the middle of the upper supporting plate (3), a cylinder switch (5) arranged at the left part of the upper supporting plate (3) and a testing mechanism arranged in a space formed between the lower supporting plate (1) and the upper supporting plate (3), wherein the testing mechanism comprises a lower testing pressing block (10), an upper testing pressing block (6), a sealing ring (8) arranged on the upper testing pressing block (6), a positioning pin (7) arranged on the lower surface of the upper testing pressing block (6), a vacuum air-pumping piece arranged on the front side of the upper testing pressing block (6), a helium air-filling piece arranged on the front side of the lower testing pressing block (10) and a side baffle block (9) for fixing a product (11);

lower test briquetting (10) upside middle part be equipped with a ladder groove, the ladder groove constitute by the first bar groove that link up each other and the second bar groove in first bar groove top, the inner space in second bar groove for the vacuum chamber of bleeding of test briquetting (10) down, the second bar groove front side of test briquetting (10) is opened and is established a first through-hole that is used for installing vacuum pumping spare down.

2. The tightness apparatus for helium testing of aluminum-shell large battery according to claim 1, wherein each side supporting plate (2) is fixedly arranged at the left and right ends of the lower supporting plate (1), and the upper side of the side supporting plate (2) is fixedly connected with the upper supporting plate (3).

3. The device for detecting the tightness of the helium tank with the large aluminum cell as claimed in claim 1, wherein a push-pull rod is arranged in the cylinder (4), a circular hole for penetrating the push-pull rod is formed in the center of the upper support plate (3), and the push-pull rod moves up and down in the circular hole in the center of the upper support plate (3) under the control of a cylinder switch (5).

4. The helium testing tightness device for the large aluminum cell according to claim 1, wherein the vacuum pumping piece is arranged at a position corresponding to the first through hole in the front side of the lower test pressing block (10), and the vacuum pumping piece pumps gas in the vacuum pumping cavity through the first through hole.

5. The helium testing tightness device for the large aluminum cell according to claim 4, wherein a sealing ring groove for embedding a sealing ring (8) is formed in the middle of the bottom surface of the upper testing pressing block (6), the depth of the sealing ring groove is smaller than the thickness of the sealing ring (8), a third strip-shaped groove communicated with the sealing ring groove is formed in the sealing ring groove, the inner space of the third strip-shaped groove is a helium inflating cavity of the upper testing pressing block (6), and a second through hole for installing a helium inflating piece is formed in the front side of the third strip-shaped groove of the upper testing pressing block (6).

6. The tightness test device for helium of the aluminum-shell large battery according to claim 5, wherein the helium gas filling member is arranged at a position corresponding to the second through hole on the front side of the upper test pressure block (6), and the helium gas filling member fills helium gas into the helium gas filling cavity through the second through hole.

7. The helium testing tightness device for the aluminum-shell large battery according to claim 6, characterized in that a sealing ring hole is formed in the middle of the sealing ring (8) at a position corresponding to the third strip-shaped groove, the cross-sectional shapes of the sealing ring hole and the second strip-shaped groove are the same as the cross-sectional shapes of the third strip-shaped groove, the cross-sectional shapes of the second strip-shaped groove, the sealing ring hole and the third strip-shaped groove are corresponding, and a test piece accommodating cavity for accommodating the test part of the product (11) is formed in an inner cavity of the second strip-shaped groove, the sealing ring hole and a space between the second strip-shaped groove and the sealing ring hole.

8. The helium testing tightness device for the large aluminum cell according to claim 7, wherein the thickness of the sealing ring (8) is 5mm, the depth of the groove of the sealing ring is 4.2mm, the thickness of the sealing ring (8) is 0.8mm by matching with the groove of the sealing ring, and the lengths of the upper test pressing block (6) and the lower test pressing block (10) are 240mm.

9. The helium testing tightness device for the aluminum-shell large battery according to claim 1, characterized in that the side block (9) is a bar-shaped block with a boss at one side, the side block (9) is connected with the lower surface of the rear side of the upper test pressing block (6) through the boss and a bolt, and the plane of the rear side of the side block (9) and the plane of the rear side of the lower test pressing block (10) are matched to clamp a product (11) so as to prevent the side edge of the product (11) from tilting after the air cylinder (4) is pressed.