CN215726608U - Battery shell testing device - Google Patents
Battery shell testing device Download PDFInfo
- Publication number
- CN215726608U CN215726608U CN202122420013.2U CN202122420013U CN215726608U CN 215726608 U CN215726608 U CN 215726608U CN 202122420013 U CN202122420013 U CN 202122420013U CN 215726608 U CN215726608 U CN 215726608U
- Authority
- CN
- China
- Prior art keywords
- main body
- battery shell
- testing device
- battery
- pressing
- 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.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a battery shell testing device, which relates to the technical field of lithium batteries and comprises a testing main body, a supporting frame arranged on the testing main body and a cylinder arranged on the supporting frame; the battery shell arranged in the containing cavity is immersed in water, and the inflation inlet of the battery shell is positioned at the right lower end of the inflation nozzle. When the battery shell testing device provided by the utility model is used for testing the battery shell, the battery shell is arranged in the testing main body, water is filled in the testing main body, and when the gas with rated pressure is injected into the charging port of the battery shell through the charging connector, if bubbles are generated in the testing main body and indicate that the battery shell leaks gas, the welding is poor; if no bubble is generated in the test main body, the airtightness of the battery shell is good, and the welding is qualified; compare with prior art's gas tightness detection mode, do not need manual AB glue of scribbling, and need not wait for the solidification of AB glue, improved detection efficiency.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a battery shell testing device.
Background
The method for detecting the lithium battery strength and air tightness of the lithium battery shell and the liquid injection port caused by solder leakage and insufficient solder at present does not meet the industrial standard: the air pipe and the explosion-proof opening are bonded together manually by AB glue, then the air is inflated into the air pipe manually, and after the air pressure in the lithium battery cavity reaches 0.8Mpa, the air inflation is cut off manually.
At present, the method has the following disadvantages: 1. the efficiency is low, a large amount of AB glue needs to be manually coated on each battery, and the solidification of the AB glue needs to be waited; 2. the safety is poor, only three sides of the existing tool have safety protection, the pole column surface of the battery is not shielded, and when the battery is badly manufactured, the upper shell of the battery can be popped out under the action of air pressure, so that the detection personnel are injured; 3. the consistency is poor, and because the air pressure value is judged by a tester, each tested battery can not be ensured to be charged with the same air pressure value.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery shell testing device to solve the technical problem that the existing battery shell is low in sealing detection efficiency.
In a first aspect, the utility model provides a battery shell testing device, which comprises a testing main body, a supporting frame arranged on the testing main body and a cylinder arranged on the supporting frame;
the air cylinder is provided with an inflating nozzle, and the inflating nozzle can move towards the test main body under the action of the air cylinder;
the testing main body is provided with a containing cavity for containing water, and a fixing tool for fixing the battery shell in the containing cavity is arranged in the containing cavity; the battery shell arranged in the containing cavity is immersed in water, and the inflation inlet of the battery shell is positioned at the right lower end of the inflation nozzle.
In an alternative embodiment, the fixing tool comprises a tool main body with an upper opening and two pressing elastic components arranged on the tool main body;
the two elastic pressure applying components are respectively arranged on the side walls of the tool main body, and the two side walls provided with the elastic pressure applying components are oppositely arranged;
the two elastic pressing components are matched to clamp the battery shell.
In an optional embodiment, the pressing elastic assembly further comprises a pressing plate, a guide rod arranged on the pressing plate, and a pressing spring sleeved on the guide rod;
the side wall is provided with a through hole, a linear bearing penetrates through the through hole, one end of the guide rod is inserted into the linear bearing, and the pressure applying spring is positioned between the side wall and the pressure applying plate and enables the pressure applying plate to have the tendency of moving away from the side wall.
In an alternative embodiment, the tool body is provided with a pull handle connected to the pressing plate 803.
In an alternative embodiment, four guide rods are arranged on the pressure plate, and the four guide rods are arranged in a rectangular shape.
In an optional embodiment, a limiting plate is arranged on the guide rod, and the limiting plate is located outside the tool main body.
In an alternative embodiment, a guide assembly is arranged on the support frame; the guide assembly comprises a guide rail and a sliding block arranged on the guide rail, the sliding block is fixedly connected with a cylinder rod of the cylinder, and the guide rail is used for enabling the cylinder rod to drive the inflating nozzle to move towards the inflating opening.
In an alternative embodiment, an O-ring seal is provided on the inflation nozzle.
In an optional embodiment, the inflation nozzle is connected with a fluid valve through a pipeline, the fluid valve is used for being connected with an air supply system, the inflation nozzle is connected with a pressure sensor through a pipeline, and the pressure sensor is used for detecting the pressure at the inflation nozzle.
In an alternative embodiment, the test body is provided with a handle for facilitating movement of the battery housing test apparatus.
When the battery shell testing device provided by the utility model is used for testing the battery shell, the battery shell is arranged in the testing main body, water is filled in the testing main body, and when the gas with rated pressure is injected into the charging port of the battery shell through the charging connector, if bubbles are generated in the testing main body and indicate that the battery shell leaks gas, the welding is poor; if no bubble is generated in the test main body, the airtightness of the battery shell is good, and the welding is qualified; compare with prior art's gas tightness detection mode, do not need manual AB glue of scribbling, and need not wait for the solidification of AB glue, improved detection efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery casing testing device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fixture of the battery casing testing device shown in FIG. 1;
fig. 3 is a schematic structural diagram of another angle of the fixing tool of the battery case testing device shown in fig. 1.
Icon: 100-a test subject; 200-a support frame; 300-a fluid valve; 400-cylinder; 500-air charging connector; 600-a guide assembly; 601-a slide block; 602-a guide rail; 700-a handle; 800-a pressure applying elastic component; 801-guide bar; 802-a pressure spring; 803-pressing plate; 900-a battery case; 110-an inflation port; 120-pulling a handle; 130-a tool body; 140-a side wall; 150-a pressure sensor; 160-linear bearing.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 3, the present invention provides a battery case testing apparatus, including a testing body 100, a supporting frame 200 disposed on the testing body 100, and a cylinder 400 disposed on the supporting frame 200;
the air cylinder 400 is provided with an air charging connector 500, and the air charging connector 500 can move towards the test main body 100 under the action of the air cylinder 400;
the test main body 100 is provided with a cavity for containing water, and a fixing tool for fixing the battery case 900 in the cavity is arranged in the cavity; the battery case 900 placed in the cavity is immersed in water and the charging port 110 of the battery case 900 is located at the right lower end of the charging connector 500.
In some embodiments, when the airtightness of the battery case 900 needs to be tested, the battery case 900 is connected to the fixing tool, so that the battery case 900 can be firmly fixed in the test main body 100 without being influenced by the buoyancy of water, and the position of the battery case 900 is changed.
After the air cylinder 400 lowers the air charging nozzle 500 and is connected with the air charging port 110, gas is injected into the battery case 900, and whether the welding airtightness of the cover plate of the battery case 900 is good or not is determined by observing whether bubbles exist in water in the test main body 100 or not; the height of the gas filling port 110 of the battery case 900 is lower than the water surface when the gas is filled into the battery case 900 by the gas filling nozzle 500; when the seal pin welds leak, air bubbles may appear in the test body 100.
Compare with prior art, compare with prior art's gas tightness detection mode, do not need manual AB glue of scribbling, and need not wait for the solidification of AB glue, improved detection efficiency.
In an alternative embodiment, the fixing tool includes a tool body 130 having an upper opening and two pressing elastic assemblies 800 disposed on the tool body 130;
the two elastic pressing components 800 are respectively arranged on the side walls 140 of the tool main body 130, and the two side walls 140 provided with the elastic pressing components 800 are oppositely arranged;
the two pressing elastic members 800 cooperate to hold the battery case 900.
In some embodiments, to enable the battery case 900 to be securely fixed within the test body 100; the tool main body 130 has an upper opening, the battery case 900 is inserted into the tool main body 130 from the upper opening and between the two pressing elastic members 800, and the two pressing elastic members 800 hold the battery case 900 so that it can be kept fixed by the buoyancy of water.
The tool main body 130 is provided with an installation cavity, the upper opening is connected with the installation cavity, and the tool main body 130 is combined with the inflating nozzle 500, so that when the tightness of the battery shell 900 is measured, the periphery of the battery shell 900 is protected, and the safety of personnel in the testing process is ensured.
Referring to fig. 2 and 3, in an alternative embodiment, the pressing elastic assembly 800 further includes a pressing plate 803, a guide rod 801 disposed on the pressing plate 803, and a pressing spring 802 sleeved on the guide rod 801;
a through hole is formed in the sidewall 140, a linear bearing 160 is inserted into the through hole, one end of the guide rod 801 is inserted into the linear bearing 160, and the pressure spring 802 is located between the sidewall 140 and the pressure plate 803 and makes the pressure plate 803 have a tendency to move away from the sidewall 140.
In an alternative embodiment, the tool body 130 is provided with a pull handle 120 connected to the pressing plate 803.
In order to conveniently take out the battery case 900 clamped by the two pressing elastic assemblies 800, the tool main body 130 is provided with a pull handle 120; when the casing needs to be taken out, the pulling handle 120 is pulled, so that the pressing plate 803 connected with the pulling plate moves towards the direction far away from the battery casing 900, and further the battery casing 900 is under a small clamping force or loses the clamping force, and an operator can take the battery casing 900 out of the fixing tool conveniently.
In an alternative embodiment, four guide rods 801 are disposed on the pressing plate 803, and the four guide rods 801 are disposed in a rectangular shape.
In an alternative embodiment, a limiting plate is disposed on the guide rod 801, and the limiting plate is located outside the tool main body 130.
The two pressing plates 803 are divided into a first pressing plate 803 and a second pressing plate 803, the pressing plate 803 of the pressing elastic assembly 800 is used for pressing the battery shell 900, the guide rod 801 is used for guiding the pressing force applied to the pressing plate 803 by the pressing spring 802, and then the pressing spring 802 is matched with the guide rod 801 to enable the first pressing plate 803 to push the battery shell 900 to the second pressing plate 803, the second pressing plate 803 also pushes the battery shell 900 to the first pressing plate 803 under the action of the pressing spring 802, and then the first pressing plate 803 is matched with the second pressing plate 803 to clamp the battery shell 900.
In order to enable the two pressing plates 803 to clamp the battery shell 900 more firmly, the four guide rods 801 are arranged on the pressing plates 803, the four guide rods 801 enable the pressing plates 803 to be stressed uniformly, and further, the external force applied to the battery shell 900 is uniform; thus, the battery case 900 is not deformed by compression while the battery case 900 is held firmly between the two pressing plates 803.
In an alternative embodiment, a guide assembly 600 is disposed on the supporting frame 200; the guide assembly 600 includes a guide rail 602 and a slider 601 disposed on the guide rail 602, the slider 601 is fixedly connected to a cylinder rod of the cylinder 400, and the guide rail 602 is configured to enable the cylinder rod to drive the charging connector 500 to move toward the charging port 110.
The guide assembly 600 guides the cylinder rod to move towards the charging port 110, so that the charging connector 500 can accurately correspond to the charging port 110 under the action of the cylinder 400; the guide rail 602 is generally vertically disposed, and the length direction of the guide rail 602 is parallel to the moving direction of the air charging nozzle 500; and the sliding block 601 is generally connected with a flange fixed on the cylinder rod, so that the guide assembly 600 is connected with the cylinder rod.
In an alternative embodiment, an O-ring seal is disposed on the inflation nozzle 500.
In an alternative embodiment, the charging connector 500 is connected to the fluid valve 300 through a pipeline, the fluid valve 300 is used for connecting to an air supply system, the charging connector 500 is connected to the pressure sensor 150 through a pipeline, and the pressure sensor 150 is used for detecting the pressure at the charging connector 500.
In order to ensure that sufficient pressure can be present within the battery case 900, i.e., the pressure within the battery case 900 reaches 0.8 Mpa; the gas supply system is connected with the charging connector 500 through the fluid valve 300, gas is injected into the battery shell 900 through the charging connector 500, and an O-shaped sealing ring is arranged on the charging connector 500 to avoid gas leakage at the joint of the charging connector 500 and the charging connector 110; the O-shaped sealing ring fills a gap between the charging connector 500 and the battery under the pressure of the cylinder 400, solves the problem of air leakage in the testing process, replaces the coating of AB glue, and improves the testing efficiency.
The charging connector 500 is connected with the pressure sensor 150, the pressure sensor 150 can detect the pressure at the charging connector 500 in real time, and the charging connector 500 is communicated with the interior of the battery shell 900, namely the pressure value detected by the pressure sensor 150 is consistent with the pressure value in the battery shell 900; when the air pressure reaches 0.8Mpa, the fluid valve 300 is automatically closed, so as to ensure that the compressed air filled in each tested battery shell 900 has the same pressure value.
The closing of the fluid valve 300 is generally controlled by a PLC, and when the pressure sensor 150 transmits the detected pressure information to the PLC, the PLC determines whether the fluid valve 300 should be closed according to a preset pressure value, which is generally 0.8 Mpa.
In an alternative embodiment, the test body 100 is provided with a handle 700 for facilitating the movement of the battery housing test apparatus.
In order to facilitate the movement of the battery case testing apparatus, a handle 700 is provided on the test main body 100.
When the battery shell testing device provided by the utility model is used for testing the battery shell 900, the battery shell 900 is arranged in the testing main body 100, water is filled in the testing main body 100, and after the gas at rated pressure is injected into the charging port 110 of the battery shell 900 through the charging connector 500, if bubbles are generated in the testing main body 100, which indicates that the battery shell 900 leaks gas, the welding is poor; if no bubble is generated in the test main body 100, the airtightness of the battery case 900 is good, and the welding is qualified; compared with the air tightness mode in the prior art, the detection efficiency is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The battery shell testing device is characterized by comprising a testing main body (100), a supporting frame (200) arranged on the testing main body (100) and a cylinder (400) arranged on the supporting frame (200);
an inflating nozzle (500) is arranged on the air cylinder (400), and the inflating nozzle (500) can move towards the test main body (100) under the action of the air cylinder (400);
the testing main body (100) is provided with a containing cavity for containing water, and a fixing tool for fixing the battery shell (900) in the containing cavity is arranged in the containing cavity; the battery shell (900) arranged in the containing cavity is immersed in water, and the air charging port (110) of the battery shell (900) is positioned at the right lower end of the air charging nozzle (500).
2. The battery shell testing device according to claim 1, wherein the fixing tool comprises a tool main body (130) with an upper opening and two pressing elastic components (800) arranged on the tool main body (130);
the two elastic pressing components (800) are respectively arranged on the side wall (140) of the tool main body (130), and the two side walls (140) provided with the elastic pressing components (800) are oppositely arranged;
the two pressing elastic components (800) are matched to clamp the battery shell (900).
3. The battery shell testing device according to claim 2, wherein the pressing elastic assembly (800) further comprises a pressing plate (803), a guide rod (801) arranged on the pressing plate (803), and a pressing spring (802) sleeved on the guide rod (801);
a through hole is formed in the side wall (140), a linear bearing (160) is arranged in the through hole in a penetrating mode, one end of the guide rod (801) is inserted into the linear bearing (160), and the pressing spring (802) is located between the side wall (140) and the pressing plate (803) and enables the pressing plate (803) to have the tendency of moving away from the side wall (140).
4. The battery case testing device according to claim 3, wherein a pull handle (120) connected with the pressure plate (803) is arranged on the tool body (130).
5. The battery case testing device according to claim 4, wherein four guide bars (801) are arranged on the pressing plate (803), and the four guide bars (801) are arranged in a rectangular shape.
6. The battery shell testing device according to claim 4, wherein a limiting plate is arranged on the guide rod (801), and the limiting plate is located outside the tool main body (130).
7. The battery case testing device according to claim 1, wherein a guide assembly (600) is provided on the supporting frame (200); the guide assembly (600) comprises a guide rail (602) and a sliding block (601) arranged on the guide rail (602), the sliding block (601) is fixedly connected with a cylinder rod of the cylinder (400), and the guide rail (602) is used for enabling the cylinder rod to drive the inflating nozzle (500) to move towards the inflating opening (110).
8. The battery case testing device according to claim 7, wherein an O-ring is disposed on the air charging nozzle (500).
9. The battery case testing device according to claim 1, wherein the air charging nozzle (500) is connected with a fluid valve (300) through a pipeline, the fluid valve (300) is used for being connected with an air supply system, the air charging nozzle (500) is connected with a pressure sensor (150) through a pipeline, and the pressure sensor (150) is used for detecting the pressure at the air charging nozzle (500).
10. The battery case testing device according to claim 1, wherein a handle (700) for facilitating the movement of the battery case testing device is provided on the testing body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122420013.2U CN215726608U (en) | 2021-10-08 | 2021-10-08 | Battery shell testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122420013.2U CN215726608U (en) | 2021-10-08 | 2021-10-08 | Battery shell testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215726608U true CN215726608U (en) | 2022-02-01 |
Family
ID=80027267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122420013.2U Active CN215726608U (en) | 2021-10-08 | 2021-10-08 | Battery shell testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215726608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608758A (en) * | 2022-05-09 | 2022-06-10 | 潍坊市工程技师学院 | Air tightness detection tool for battery electric core shell |
-
2021
- 2021-10-08 CN CN202122420013.2U patent/CN215726608U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608758A (en) * | 2022-05-09 | 2022-06-10 | 潍坊市工程技师学院 | Air tightness detection tool for battery electric core shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210426902U (en) | Helium detecting device | |
| CN215726608U (en) | Battery shell testing device | |
| CN108195519A (en) | Quick air-tightness precise testing device and test method | |
| CN109959488A (en) | Energy storage battery electrode column sealing device for detecting performance and its detection method | |
| CN106679896A (en) | Helium leak detection device of minitype pipe tube sheet welding specimen | |
| CN215524966U (en) | Simple air tightness testing device of puncture outfit | |
| CN217560884U (en) | Square lithium cell welding seam withstand voltage test frock | |
| CN206563637U (en) | A kind of Minitype pipe Tube-sheet Welding test specimen helium-leakage detecting apparatus | |
| CN206740331U (en) | A kind of pressure vessel leak detection apparatus | |
| CN217111363U (en) | Lithium ion battery leak detection device | |
| CN216483776U (en) | Pressure-tight seal detection device of valve | |
| CN212779805U (en) | Oil tank sealing detection equipment for oil-immersed transformer production | |
| CN113313993B (en) | Cable lead sealing experiment detection device and using method thereof | |
| CN212779823U (en) | Automatic quick airtight detection device | |
| KR100886175B1 (en) | A water-filling and gas-evacuating equipment for pressure containers | |
| CN210571249U (en) | Auxiliary water tank leakage detection device | |
| CN208254738U (en) | Seal for pipe joints system safety testing device | |
| CN110887614A (en) | Motor flange end cover air tightness detection device | |
| CN218937665U (en) | Water pipe valve check out test set | |
| CN215952904U (en) | Pressure pipeline welding seam defect detection device | |
| CN213957032U (en) | Explosion-proof testing arrangement of battery aluminum hull | |
| CN109141756A (en) | Press water air tightness tester | |
| CN111829731B (en) | Test device and method for verifying sealing performance of flange connection | |
| CN220120323U (en) | Pressure vessel leakage detection device | |
| CN220063307U (en) | Pressure vessel head leakproofness check out test set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |