Battery aluminum shell air tightness detection equipment

Abstract

The utility model discloses air tightness detection equipment for a battery aluminum shell. The air tightness detection equipment comprises an air tightness detection machine main body, two detection tables arranged at the inner side of the air tightness detection machine main body, a plurality of air tightness seats arranged at the tops of the detection tables, and a substrate fixed at the inner side of the air tightness detection machine main body and positioned above the detection tables, the surface of the bottom end of the airtight seat is sleeved with the sealing ring, and a stable disassembly and assembly structure is arranged between the sealing ring and the detection table; according to the utility model, an existing air tightness detection machine is improved, a stable sealing ring is additionally arranged on the air tightness seat, the air tightness seat can be effectively attached to the outer wall of a battery aluminum shell, a good sealing interface is ensured to be formed in the pressing process, and meanwhile, the sealing ring seat is additionally arranged at the top of the sealing ring, so that the sealing performance is improved. Due to the design, the possibility of gas leakage is further reduced, and the high sealing performance can be kept even under the high-pressure test condition; according to the utility model, a rotatable protective strip is innovatively designed above the airtight seat.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery aluminum shell detection technical field, concretely relates to a battery aluminum shell air tightness detection equipment. BACKGROUND

[0002] In the battery manufacturing industry, battery aluminum shell as the key component of lithium ion battery and other chemical power supply, its air tightness directly influences the safety, service life and overall performance of battery, therefore, battery aluminum shell must pass through strict air tightness detection in the production process to ensure that each product can reach the established quality standard, traditional battery aluminum shell air tightness detection mainly relies on various air tightness detection machines to realize, these equipment judges whether it exists leakage by filling certain pressure gas to the inside of battery aluminum shell and monitoring the change of internal air pressure, thereby realizes the air tightness detection of battery aluminum shell, the basic working principle of existing air tightness detection machine is as follows: the operator first places a cylindrical battery aluminum shell on the air tightness seat of the equipment, then starts the air cylinder device, the air cylinder presses the battery aluminum shell on the air tightness seat through mechanical force, at the same time, the external gas source is activated, and the gas is filled into the inside of battery aluminum shell through the preset air hole on the air tightness seat, during the filling process and after the filling, the sensor built-in the equipment will continuously monitor the air pressure change in the inside of battery aluminum shell, any abnormal air pressure drop will be regarded as potential leakage sign, thereby realizes the effective evaluation of the air tightness of battery aluminum shell.

[0003] But the air tightness detection machine in the prior art does not adopt stable sealing structure on the air tightness seat when detecting the air tightness of battery aluminum shell, which leads to the situation that gas may escape from the gap between the air tightness seat and the contact surface of battery aluminum shell during the detection process, and the air leakage will reduce the accuracy of detection, at the same time, the air hole at the top of the air tightness seat is in long-term exposed state in the inactivated state of the existing air tightness detection machine, which is easy to cause unnecessary blockage due to the intrusion of external dust and impurities, and causes unnecessary hindrance to the next air tightness detection, therefore, the utility model provides a battery aluminum shell air tightness detection equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a battery aluminum shell air tightness detection equipment to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a battery aluminum shell air tightness detection equipment, comprising

[0006] The utility model provides a kind of airtightness detection machine body, two detection tables being arranged in the inside of airtightness detection machine body, a plurality of airtight seats being arranged on the top of detection table, substrate being fixed in the inside of airtightness detection machine body and being above detection table, a plurality of air cylinders are installed on the top of substrate, the free end of the air cylinder is penetrated to the bottom of substrate and is connected with pressure seat, the top center of the airtight seat is provided with air hole, and the bottom end of airtight seat is connected with outside air source, and the surface of one airtight seat is sleeved with battery aluminum shell;

[0007] And sealing ring is sleeved on the bottom end surface of airtight seat, and the sealing ring is provided with sealing ring seat corresponding to battery aluminum shell on the top surface between the sealing ring and detection table, and the bottom end of battery aluminum shell is inserted into the inside of sealing ring seat.

[0008] Preferably, the sealing ring and the sealing ring seat are integrated.

[0009] Preferably, the top end inner diameter of the sealing ring seat is 1.2 times of the bottom end inner diameter of the sealing ring seat.

[0010] Preferably, the stability dismounting structure includes T-shaped clamping head and annular clamping groove, the bottom surface of the sealing ring is provided with a plurality of integrated T-shaped clamping heads, the top surface of the detection table is provided with annular clamping grooves corresponding to the T-shaped clamping heads on the outside of the airtight seat, and the bottom end of the T-shaped clamping head is clamped into the annular clamping groove.

[0011] Preferably, the T-shaped clamping head is provided with a cavity, and the cavity is elliptical.

[0012] Preferably, the top of each airtight seat is rotatably provided with a protective strip corresponding to the annular clamping groove.

[0013] Preferably, the top surface of the airtight seat is fixed with a shaft block on one side of the air hole, and one end of the protective strip is rotatably sleeved on the shaft block.

[0014] Preferably, the front surface of the top end of the airtightness detection machine body is provided with a display screen, and a plurality of indicator lights are arranged on both sides of the display screen.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The utility model improves the existing airtightness detection machine, adds a stable sealing ring on the airtight seat, effectively fits the outer wall of battery aluminum shell, ensures the formation of a good sealing interface in the pressing process, and further reduces the possibility of gas leakage by additionally providing a sealing ring seat on the top of the sealing ring, even under high pressure test conditions, the sealing performance is high.

[0017] 2, the utility model further innovatively designs a rotatable protection strip above the air -tight seat, the protection strip can accurately block the air hole on the air -tight seat through the operation of simply rotating ninety degrees under the premise of not interfering with normal detection process, effectively prevent the dust, impurity and other foreign matters from entering the air hole, thereby avoid the detection error caused by foreign matter blockage, provide more reliable environmental protection for next air -tight detection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a partial enlarged view of the area A in the utility model; Figure 1

[0020] Figure 3 It is a structural schematic diagram of the air -tight seat and the sealing ring in the utility model;

[0021] Figure 4 It is a sectional view of the connecting place of the sealing ring and the detection table in the utility model;

[0022] Figure 5 It is a partial enlarged view of the area B in the utility model; Figure 4

[0023] In the drawing: 1, air -tightness detection machine main part;11, display screen;12, pilot lamp;2, detection table;21, annular clamping groove;3, air -tight seat;31, air hole;32, shaft block;4, base plate;5, air cylinder;6, pressing seat;7, battery aluminum shell;81, sealing ring;82, sealing ring seat;83, T-shaped clamping head;9, protection strip. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] EMBODIMENT

[0026] Please refer to Figures 1 to 5 , it is an embodiment of the utility model, and the embodiment provides a technical scheme: a battery aluminum shell air -tightness detection equipment, comprising

[0027] ​​The air tightness detection machine body 1, two detection tables 2 arranged in the air tightness detection machine body 1, a plurality of air tightness seats 3 arranged on the top of the detection table 2, a base plate 4 fixed in the air tightness detection machine body 1 and above the detection table 2, a plurality of air cylinders 5 installed on the top of the base plate 4, the free end of the air cylinder 5 penetrates to the bottom of the base plate 4 and is connected with a pressing seat 6, a gas hole 31 is arranged at the center of the top of the air tightness seat 3, and the bottom end of the air tightness seat 3 is connected with an external air source, the surface of one of the air tightness seats 3 is sleeved with a battery aluminum shell 7, and subsequent detection only needs to sleeve the bottom end of the battery aluminum shell 7 on the surface of the air tightness seat 3, then drive the air cylinder 5, so that the free end of the air cylinder 5 moves downwardly to make the pressing seat 6 tightly press the battery aluminum shell 7, at the same time, the external air source is opened to inflate the inside of the battery aluminum shell 7 through the gas hole 31, so that the air tightness detection of the battery aluminum shell 7 can be carried out;

[0028] and a sealing ring 81 sleeved on the bottom surface of the air tightness seat 3, after the bottom end of the battery aluminum shell 7 is sleeved on the surface of the air tightness seat 3, the sealing ring 81 can be tightly combined with the sealing ring 81 under the pressing action of the pressing seat 6, so as to achieve the sealing effect, ensure that a good sealing interface is formed during the pressing process, prevent air leakage, ensure the accuracy of the air tightness detection of the battery aluminum shell 7, and the stability dismounting structure is arranged between the sealing ring 81 and the detection table 2, the top surface of the sealing ring 81 is further provided with a sealing ring seat 82 corresponding to the battery aluminum shell 7, and the bottom end of the battery aluminum shell 7 is inserted into the inside of the sealing ring seat 82, so that the sealing property of the bottom end of the battery aluminum shell 7 can be further improved.

[0029] In the embodiment, preferably, the sealing ring 81 and the sealing ring seat 82 are integrated structures, and both are made of rubber material and can be elastically deformed when being extruded.

[0030] In the embodiment, preferably, the top inner diameter of the sealing ring seat 82 is 1.2 times of the bottom inner diameter of the sealing ring seat 82, so that the bottom end of the battery aluminum shell 7 is more easily inserted into the inside of the sealing ring seat 82 when the battery aluminum shell 7 is sleeved on the surface of the air tightness seat 3.

[0031] In the embodiment, preferably, the stability dismounting structure includes a T-shaped clamping head 83 and a ring-shaped clamping groove 21, the bottom surface of the sealing ring 81 is provided with a plurality of integrated T-shaped clamping heads 83, the T-shaped clamping head 83 is made of rubber material and can be elastically deformed when being extruded, the top surface of the detection table 2 is provided with a ring-shaped clamping groove 21 corresponding to the T-shaped clamping head 83 relative to the outside of the air tightness seat 3, the bottom end of the T-shaped clamping head 83 is clamped into the ring-shaped clamping groove 21, the stability installation of the sealing ring 81 is realized, so that the sealing ring 81 will not be taken off together with the battery aluminum shell 7 when the battery aluminum shell 7 is taken off after detection, and the installation stability of the sealing ring 81 is ensured.

[0032] In the embodiment, preferably, the T-shaped clamping head 83 is provided with a cavity, and the cavity is in an elliptical shape, so that the T-shaped clamping head 83 is easy to elastically deform when being extruded, and has a good deformation space.

[0033] In the embodiment, preferably, the top of each air-tight seat 3 is rotatably provided with a protection strip 9 corresponding to the annular clamping groove 21, and in the subsequent device downtime, the protection strip 9 can be rotated by ninety degrees, so that the protection strip 9 blocks the annular clamping groove 21, thereby avoiding the intrusion of foreign matters such as dust from the outside, and preventing unnecessary blockage of the annular clamping groove 21, and when the device needs to be started again for air-tightness detection of the battery aluminum shell 7, the protection strip 9 only needs to be rotated and moved away from the top end of the air hole 31, so as not to block the air hole 31, and at this time, the protection strip 9 is completely on the top surface of the air-tight seat 3, and does not have any part extending out of the edge of the air-tight seat 3, so that the protection strip 9 does not affect the normal sleeving of the battery aluminum shell 7 on the surface of the air-tight seat 3, and because the battery aluminum shell 7 is a hollow cylindrical structure, only the inner wall of the battery aluminum shell 7 contacts the circumferential surface of the air-tight seat 3 after installation, so that the protection strip 9 does not contact the battery aluminum shell 7, and does not affect the subsequent air-tightness detection process of the battery aluminum shell 7.

[0034] In the embodiment, preferably, the top surface of the air-tight seat 3 is fixed with a shaft block 32 relative to one side of the air hole 31, and one end of the protection strip 9 is rotatably sleeved on the shaft block 32, so that the protection strip 9 can be smoothly rotated on the top of the air-tight seat 3.

[0035] In the embodiment, preferably, the front surface of the top end of the air-tightness detection machine main body 1 is provided with a display screen 11, and the two sides of the display screen 11 are provided with a plurality of indicator lights 12.

[0036] Although the embodiments of the utility model have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A battery aluminum can airtightness detection device, characterized in that: The utility model relates to a kind of air-tightness detection machine, including air-tightness detection machine body (1), two detection tables (2) being arranged in the inside of air-tightness detection machine body (1), multiple air-tight seats (3) being arranged on the top of detection table (2), base plate (4) being fixed in the inside of air-tightness detection machine body (1) and being above detection table (2), multiple air cylinders (5) are installed on the top of base plate (4), the free end of the air cylinder (5) penetrates to the bottom of base plate (4) and is connected with pressure seat (6), air hole (31) is arranged at the top center of air-tight seat (3), and the bottom end of air-tight seat (3) is connected with external gas source, and the surface of one air-tight seat (3) is sleeved with battery aluminum shell (7); And sealing ring (81) is sleeved on the bottom end surface of air-tight seat (3), and stability dismounting structure is arranged between sealing ring (81) and detection table (2), the top surface of sealing ring (81) is further provided with sealing ring seat (82) corresponding to battery aluminum shell (7), and the bottom end of battery aluminum shell (7) is inserted into the inside of sealing ring seat (82). The sealing ring (81) and the sealing ring seat (82) are integrated.

2. The battery aluminum shell air tightness detection equipment according to claim 1, characterized in that: The top end inner diameter of the sealing ring seat (82) is one point two times of the bottom end inner diameter of the sealing ring seat (82).

3. The battery aluminum shell air tightness detection equipment according to claim 1, characterized in that: The stability dismounting structure includes T-shaped clamping head (83) and annular clamping groove (21), the bottom surface of the sealing ring (81) is provided with a plurality of integrated T-shaped clamping heads (83), the top surface of the detection table (2) is provided with an annular clamping groove (21) corresponding to the T-shaped clamping head (83) relative to the outside of the air-tight seat (3), and the bottom end of the T-shaped clamping head (83) is clamped into the annular clamping groove (21).

4. The battery aluminum shell air tightness detection equipment according to claim 1, characterized in that: The T-shaped clamping head (83) is provided with a cavity, and the cavity is elliptical.

5. The battery aluminum shell air tightness detection equipment according to claim 4, characterized in that: The top of each air-tight seat (3) is rotatably installed with a protective strip (9) corresponding to the annular clamping groove (21).

6. The battery aluminum shell airtightness detection equipment according to claim 1, characterized in that: The top surface of the air-tight seat (3) is fixed with a shaft block (32) relative to one side of the air hole (31), and one end of the protective strip (9) is rotatably sleeved on the shaft block (32).

7. The battery aluminum shell air tightness detection equipment according to claim 6, characterized in that: The front surface of the top end of the air-tightness detection machine body (1) is provided with a display screen (11), and a plurality of indicator lights (12) are arranged on both sides of the display screen (11).

8. The battery aluminum shell air tightness detection equipment according to claim 1, characterized in that: ​

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