Device for efficiently detecting sealing performance of battery seal

Abstract

The utility model discloses a device for efficiently detecting the sealing performance of a battery seal, which comprises an operation table, and the upper end of the operation table is provided with a punching test mechanism, a battery positioning mechanism and a control system. The punching test mechanism comprises a transverse moving assembly, the transverse moving assembly is connected with a first moving seat and a second moving seat, a punching motor is arranged on the first moving seat, a nitrogen blowing heating assembly is arranged on the second moving seat, and the punching test mechanism further comprises a thermal induction probe; the battery positioning mechanism comprises a vertical moving assembly, the vertical moving assembly is connected with a third moving seat, the third moving seat is provided with a battery fixing groove, through the automatic punching testing mechanism and the nitrogen blowing heating assembly, the sealing performance of a battery seal can be rapidly and efficiently detected, and the labor and time cost is saved. Compared with traditional manual detection, the working efficiency can be remarkably improved by using the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery cover detection equipment field especially relates to a kind of device for efficiently detecting battery seal tightness. BACKGROUND

[0002] With lithium ion battery being widely applied in various industries, the safety of lithium ion use is widely concerned, and major lithium ion battery production plants pay more attention to safety factors, and battery seal is one of the important links affecting safety. Poor seal or air leakage will affect the durability of electrolyte in the shell, and easily cause capacity attenuation, even cause fire and explosion. The sealing inspection is particularly important in the lithium ion battery manufacturing industry.

[0003] The so-called sealing inspection process is to detect the battery cover and air tightness in the production process. In order to investigate the above problems, the existing technology usually adopts manual punching ventilation, and determines whether it is qualified by observing bubbles with naked eyes. Manual detection takes a long time, and the efficiency is low. The detection workload is huge, and the naked eye determination is easy to misjudge. Therefore, a device for efficiently detecting battery seal tightness is needed. UTILITY MODEL CONTENT

[0004] The purpose of the utility model is to provide a device for efficiently detecting battery seal tightness, which can quickly and efficiently detect the sealing of battery seal through automatic punching test mechanism and nitrogen blowing heating assembly, saving labor and time cost. Compared with traditional manual detection, the device can significantly improve work efficiency.

[0005] TECHNICAL SCHEME

[0006] A device for efficiently detecting battery seal tightness, comprising an operation table, the upper end of the operation table is provided with a punching test mechanism, a battery positioning mechanism and a control system;

[0007] The punching test mechanism comprises a horizontal moving assembly, the horizontal moving assembly is connected with a first moving seat and a second moving seat, the first moving seat is provided with a punching motor, the second moving seat is provided with a nitrogen blowing heating assembly, and the punching test mechanism further comprises a thermal induction probe;

[0008] The battery positioning mechanism comprises a vertical moving assembly, the vertical moving assembly is connected with a third moving seat, and the third moving seat is provided with a battery fixing groove.

[0009] Further, the nitrogen blowing heating assembly comprises a nitrogen outlet nozzle, the nitrogen outlet nozzle is connected with a nitrogen tank through a hose, and the hose is further provided with a solenoid valve and a nitrogen heating device.

[0010] Further, the punching test mechanism further comprises a protective cover arranged on the nitrogen blowing heating assembly and the upper end of the punching motor.

[0011] Further, the control system comprises a display, a three-color indicator light and a nitrogen pressure display instrument.

[0012] Further, the control system further comprises an emergency stop button electrically connected with the punching test mechanism.

[0013] Further, the three-color indicator light comprises a green light which is bright when the battery sealing detection is normal, a red light which is bright when the battery sealing detection is abnormal, and a yellow light which is bright when the battery sealing detection is interrupted.

[0014] Further, the battery fixing groove is provided with a strong magnet.

[0015] Further, the horizontal moving assembly and the vertical moving assembly both adopt a screw nut structure.

[0016] Further, the nitrogen outlet nozzle is provided with a sealing ring.

[0017] Beneficial effects: through the automatic punching test mechanism and the nitrogen blowing heating assembly, the sealing property of the battery sealing can be quickly and efficiently detected, and the labor and time cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the perspective view of the utility model;

[0019] Figure 2 is the enlarged perspective view of the nitrogen blowing heating assembly of the utility model;

[0020] Figure 3 is the side view of the utility model;

[0021] Figure 4 is the sectional view of the utility model;

[0022] Mark: 1, operation table; 2, punching test mechanism; 21, horizontal moving assembly; 22, first moving seat; 23, second moving seat; 24, punching motor; 25, nitrogen blowing heating assembly; 251, nitrogen outlet nozzle; 252, hose; 253, nitrogen tank; 254, electromagnetic valve; 255, nitrogen heating device; 256, sealing ring; 26, thermal induction probe; 27, protective cover; 3, battery positioning mechanism; 31, vertical moving assembly; 32, third moving seat; 33, battery fixing groove; 34, strong magnet; 4, control system; 41, display; 42, three-color indicator light; 43, nitrogen pressure display instrument; 44, emergency stop button. DETAILED DESCRIPTION

[0023] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figures 1-4 As shown, a device for efficiently testing the sealing performance of a battery includes an operating table 1, with a punching test mechanism 2, a battery positioning mechanism 3, and a control system 4 provided at the upper end of the operating table 1.

[0026] The drilling test mechanism 2 includes a transverse component 21, which is connected to a first movable seat 22 and a second movable seat 23. A drilling motor 24 is provided on the first movable seat 22, and a nitrogen blowing heating component 25 is provided on the second movable seat 23. The drilling test mechanism 2 also includes a thermal induction probe 26.

[0027] The battery positioning mechanism 3 includes a vertical moving component 31 connected to a third movable seat 32, on which a battery fixing slot 33 is provided. The battery positioning mechanism is responsible for accurately placing the battery to be tested into the test position. The battery fixing slot 33 and the strong magnet 34 ensure that the battery is stably fixed during the test, preventing movement or deviation. This ensures the accuracy of the drilling and sealing tests.

[0028] The function of the perforation testing mechanism 2 is to perforate the seal of the battery under test and conduct a sealing test through the nitrogen blowing heating assembly 25. The nitrogen blowing heating assembly 25 ensures that the battery's sealing performance is evaluated through changes in gas pressure and temperature. The thermal sensing probe 26 can monitor the temperature change of the battery seal in real time to determine if there are any sealing defects.

[0029] Furthermore, the nitrogen blowing heating assembly 25 includes a nitrogen outlet 251, which is connected to a nitrogen tank 253 via a hose 252. The hose 252 is also equipped with a solenoid valve 254 and a nitrogen heating device 255. The nitrogen outlet 251 is connected to the nitrogen tank 253 via the hose 252, the solenoid valve 254 controls the nitrogen flow rate, and the nitrogen heating device 255 heats the nitrogen during testing. The heated nitrogen enters the battery, and as the gas pressure gradually increases, it helps determine whether the battery seal is intact. If the seal is poor, nitrogen leakage will cause abnormal pressure and temperature, and the system will determine the seal problem based on these signals.

[0030] Further, the punching testing mechanism 2 further comprises a protective cover 27 arranged on the nitrogen blowing heating assembly 25 and the upper end of the punching motor 24. The main function of the protective cover 27 is to protect the operator from possible dangers, especially the high temperature and high pressure gas generated by the punching motor 24 and the nitrogen blowing heating assembly 25 during the working process. The protective cover 27 can effectively avoid accidents and improve the operation safety.

[0031] Further, the control system 4 comprises a display 41, a three-color indicator light 42 and a nitrogen pressure display instrument 43.

[0032] Further, the control system 4 further comprises an emergency stop button 44 electrically connected with the punching testing mechanism 2.

[0033] Further, the three-color indicator light 42 comprises a green light which is on when the battery seal detection is normal, a red light which is on when the battery seal detection is abnormal, and a yellow light which is on when the battery seal detection is interrupted.

[0034] Further, the battery fixing groove 33 is provided with a strong magnet 34, which ensures the stable fixation of the battery during the whole testing process.

[0035] Further, the horizontal moving assembly 21 and the vertical moving assembly 31 both adopt a lead screw nut structure. The lead screw nut structure is a high-precision transmission mode, which can provide smooth and stable movement and ensure the accurate alignment of each component during the testing process. This structure effectively reduces mechanical errors and improves the operation precision and stability of the whole system.

[0036] Further, the nitrogen outlet nozzle 251 is provided with a sealing ring 256. The sealing ring 256 ensures the sealing property of the nitrogen outlet nozzle and the punching position, which effectively prevents the nitrogen leakage during the nitrogen blowing testing process.

[0037] Working principle: the battery to be tested is placed in the battery fixing groove 33 and fixed under the action of the strong magnet 34, the battery to be tested is moved to the front end of the punching test mechanism 2 under the driving of the vertical moving assembly 31, the punching motor 24 is first moved to the front end of the battery to be tested through the horizontal moving assembly 21, the battery to be tested is punched, after the punching is completed, the horizontal moving assembly 21 drives the nitrogen blowing and heating assembly 25 to move to the front end of the battery to be tested, the nitrogen gas outlet nozzle 251 is aligned with the battery to be tested, then the vertical moving assembly 31 continues to drive the battery to be tested to move to the nitrogen gas outlet nozzle 251, sealing and pressing are completed under the action of the sealing ring 256, then the nitrogen gas heating device 255 is started, then the electromagnetic valve 254 is slowly opened, after heating, nitrogen gas enters the battery to be tested, with the gradual increase of the pressure, the nitrogen gas pressure display instrument 43 displays the value, the thermal induction probe 26 collects the pattern and displays on the display 41, and the corresponding temperature range is displayed. If the sealing is normal, the temperature is uniformly distributed on the sealing surface, the program determines that the sealing is normal, and the three-color indicator light 42 is green and long bright. If the sealing is abnormal and leaks, there is hot nitrogen gas escaping in the surrounding air, the program determines that the temperature is abnormal, and the three-color indicator light 42 is red and always bright. If an abnormality occurs in the test process, the emergency stop button 44 can be pressed, the action is stopped, and the three-color indicator light 42 is yellow and always bright.

[0038] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A device for efficiently detecting the sealing performance of a battery seal, characterized in that, Including operation platform (1), the upper end of operation platform (1) is provided with punch test mechanism (2), battery positioning mechanism (3) and control system (4); The punch test mechanism (2) includes a horizontal moving assembly (21), the first moving seat (22) and the second moving seat (23) are connected to the horizontal moving assembly (21), the punch motor (24) is arranged on the first moving seat (22), the nitrogen blowing and heating assembly (25) is arranged on the second moving seat (23), and the punch test mechanism (2) further includes a thermal induction probe (26). The battery positioning mechanism (3) includes a vertical moving assembly (31), the third moving seat (32) is connected to the vertical moving assembly (31), and the battery fixing groove (33) is arranged on the third moving seat (32).

2. The device for efficiently detecting the sealing property of a battery seal according to claim 1, wherein The nitrogen blowing and heating assembly (25) includes a nitrogen outlet nozzle (251), the nitrogen outlet nozzle (251) is connected with a nitrogen tank (253) through a hose (252), and an electromagnetic valve (254) and a nitrogen heating device (255) are further arranged on the hose (252).

3. The device for efficiently detecting the sealing property of a battery seal according to claim 1, wherein The punch test mechanism (2) further includes a protective cover (27) arranged on the upper end of the nitrogen blowing and heating assembly (25) and the punch motor (24).

4. The device for efficiently detecting the sealing property of a battery seal according to claim 1, wherein The control system (4) includes a display (41), a three-color indicator light (42) and a nitrogen pressure display instrument (43).

5. The device for detecting the sealing property of a battery seal according to claim 4, wherein The control system (4) further includes an emergency stop button (44) electrically connected with the punch test mechanism (2).

6. The device for detecting the sealing property of a battery seal according to claim 4, wherein The three-color indicator light (42) includes a green light that is bright when the battery seal detection is normal, a red light that is bright when the battery seal detection is abnormal, and a yellow light that is bright when the battery seal detection is interrupted.

7. The device for efficiently detecting the sealing property of a battery seal according to claim 1, wherein The battery fixing groove (33) is provided with a strong magnet (34).

8. The device for efficiently detecting the sealing property of a battery seal according to claim 1, wherein The horizontal moving assembly (21) and the vertical moving assembly (31) both adopt a lead screw and nut structure.

9. The device for detecting the sealing property of a battery seal according to claim 2, wherein The nitrogen outlet nozzle (251) is provided with a sealing ring (256).

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