Lithium battery performance testing device

Abstract

The utility model provides a lithium battery performance testing device. The lithium battery performance testing device comprises a testing mechanism, a sealing box, a pressure mechanism and a gas transmission mechanism, a sealing box is arranged on one side of the testing mechanism, a pressure mechanism is arranged at the position, close to the testing mechanism, of the sealing box in a communicating mode, the pressure mechanism is arranged in the testing mechanism, and a gas transmission mechanism is arranged between the sealing box and the testing mechanism in a communicating mode. Through mutual cooperation of the testing mechanism, the sealing box, the pressure mechanism and the gas transmission mechanism, the lithium battery performance testing efficiency can be improved, and the safety of testing personnel can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery testing, in particular to a lithium battery performance testing device. Background Art

[0002] Lithium battery refers to a battery containing lithium (including metallic lithium, lithium alloys, lithium ions, and lithium polymers) in the electrochemical system. With the widespread application of lithium batteries for energy storage, the market demand and quality requirements for lithium batteries are also increasing rapidly. A lithium battery tester is required for lithium battery testing.

[0003] However, traditional lithium battery testing devices often only achieve insulation by attaching rubber to the surface, or rely on personnel to wear insulating gloves and then use electrode clamps to touch the outside of the lithium battery electrode sheet to create an electrical connection between the electrode sheet and the test wire. During this process, if the gloves are damaged or touch the part of the instrument surface that is not attached with rubber, it is very easy to cause electric shock to personnel, making it difficult to ensure the safety of test personnel and test efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to improve the efficiency of lithium battery performance testing and ensure the safety of testers.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A lithium battery performance testing device comprises a testing mechanism (1), a sealing box (2), a pressure mechanism (3), and a gas transmission mechanism (4); the sealing box (2) is arranged on one side of the testing mechanism (1); the sealing box (2) is connected to the testing mechanism (1) and is provided with a pressure mechanism (3); the pressure mechanism (3) is arranged inside the testing mechanism (1); and the gas transmission mechanism (4) is connected to the sealing box (2) and the testing mechanism (1).

[0007] Beneficial effect: Through the cooperation of the test mechanism, the sealing box, the pressure mechanism and the gas transmission mechanism, the efficiency of lithium battery performance testing can be improved and the safety of testers can be guaranteed.

[0008] Furthermore, a plurality of through holes (21) are provided on the sealing box (2) near the pressure mechanism (3), and the sealing box (2) is connected to the pressure mechanism (3) via the plurality of through holes (21).

[0009] Furthermore, the pressure mechanism (3) comprises a sealing sleeve (31), a spring (32), and an extrusion rod (33); the sealing sleeve (31) is fixedly connected to the sealing box (2) near the through hole (21); the extrusion rod (33) is slidably connected inside the sealing sleeve (31); a plurality of springs (32) are arranged inside the sealing sleeve (31); the two ends of the plurality of springs (32) are respectively fixedly connected to the sealing box (2) and the extrusion rod (33); the sealing sleeve (31) is connected to the sealing box (2) through the through hole (21).

[0010] Beneficial effect: Through the mutual cooperation of the sealing sleeve, the spring and the extrusion rod, the gas delivered by the gas transmission mechanism can drive the extrusion rod to slide in the sealing sleeve.

[0011] Furthermore, the testing mechanism (1) comprises a base (11), a sealing cover (12), a rotating shaft (13), and a testing component (15); the base (11) is hollow, the top of the base (11) is rotatably connected to the sealing cover (12) via the rotating shaft (13), and three testing components (15) are provided, which are respectively arranged on the left and right sides and the upper side of the base (11).

[0012] Beneficial effect: By setting the position of the test component, lithium battery bodies of different sizes can be tested, thereby ensuring the applicability of the device.

[0013] Furthermore, the testing mechanism (1) further comprises a transmission wheel (14), and a plurality of transmission wheels (14) are rotatably connected to the bottom of the inner wall of the base (11).

[0014] Beneficial effect: Through the setting of the conveying wheel, the staff can conveniently send the lithium battery body into the testing mechanism, avoiding the situation where the lithium battery body is difficult to slide due to excessive friction between the lithium battery body and the inside of the device.

[0015] Furthermore, a control panel (111) is fixed on the outer shell of the base body (11).

[0016] Furthermore, the test assembly (15) comprises a telescopic sleeve (151) and a metal test piece (152), each of the telescopic sleeves (151) being fixedly connected to the left and right sides and the upper side of the inside of the base (11), and the free ends of the telescopic sleeves (151) are fixedly connected to the metal test piece (152), and the telescopic sleeves (151) are connected to the gas transmission mechanism (4).

[0017] Furthermore, a rotating shaft (13) is fixedly connected to the top of the sealing cover (12), two bearings (131) are sleeved on both sides of the rotating shaft (13), and the two bearings (131) are respectively clamped on opposite surfaces of two first support plates (132), and the two first support plates (132) are fixedly connected to the base (11).

[0018] Furthermore, the gas transmission mechanism (4) comprises a four-way (41), a sliding sleeve (42), a sliding rod (43), and a connecting pipe (44); one port of the four-way (41) is connected and fixed on the top wall of the sealing box (2), and the other three ports of the four-way (41) are respectively connected to three connecting pipes (44); the free end of the connecting pipe (44) located in the middle is connected to the sliding sleeve (42), and a sliding rod (43) is slidably connected in the sliding sleeve (42); the sliding rod (43) is slidably connected in the sliding sleeve (42) through a piston plate, the bottom end of the sliding sleeve (42) is fixedly connected to the base (11), the free end of the sliding rod (43) is fixedly connected to the sealing cover (12), and the free ends of the other two connecting pipes (44) pass through the base (11) and are respectively connected to the three test components (15), and the sliding rod (43) and the sliding sleeve (42) are both arranged in an arc shape.

[0019] Beneficial effect: The arc-shaped setting of the slide rod and the slide sleeve ensures that while the gas enters the slide sleeve, the slide rod can simultaneously squeeze the sealing cover to flip along the rotating shaft, thereby ensuring the stability of the sealing cover during operation.

[0020] Furthermore, a second support plate (45) is fixedly connected to the bottom end of the sliding sleeve (42), and the second support plate (45) is fixedly connected to the base (11).

[0021] The advantages of the utility model are:

[0022] The utility model can improve the efficiency of lithium battery performance testing and ensure the safety of testers through the mutual cooperation of the testing mechanism, the sealing box, the pressure mechanism and the gas transmission mechanism.

[0023] In the utility model, the sealing sleeve, the spring and the extrusion rod cooperate with each other, and the gas delivered by the gas transmission mechanism can drive the extrusion rod to slide in the sealing sleeve.

[0024] The utility model can test lithium battery bodies of different sizes by setting the position of the test component, thereby ensuring the applicability of the device.

[0025] The utility model provides a transmission wheel so that the staff can conveniently send the lithium battery body into the testing mechanism, thereby avoiding the situation that the lithium battery body is difficult to slide due to excessive friction between the lithium battery body and the inside of the device.

[0026] The utility model ensures that the sliding rod can synchronously squeeze the sealing cover to flip along the rotating shaft through the arc-shaped arrangement of the sliding rod and the sliding sleeve when the gas enters the sliding sleeve, thereby ensuring the stability of the sealing cover during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional diagram of a lithium battery performance testing device according to a first embodiment of the present utility model;

[0028] Figure 2 This is a three-dimensional view of the lithium battery performance testing device of the first embodiment of the utility model from another perspective;

[0029] Figure 3 This is an assembly diagram of a pressure mechanism and a sealing box in a lithium battery performance testing device according to a first embodiment of the present utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1

[0032] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides a lithium battery performance testing device, including a testing mechanism 1, a sealing box 2, a pressure mechanism 3, and a gas transmission mechanism 4; the back of the testing mechanism 1 is fixedly connected to the sealing box 2, the front of the sealing box 2 is fixedly connected to the pressure mechanism 3, a plurality of through holes 21 are opened on the front of the sealing box 2 near the pressure mechanism 3, the sealing box 2 is connected to the pressure mechanism 3 through the plurality of through holes 21, and the pressure mechanism 3 is located inside the testing mechanism 1; a gas transmission mechanism 4 is arranged to connect the sealing box 2 and the testing mechanism 1.

[0033] like Figure 1 , Figure 2As shown, the testing mechanism 1 includes a base 11, a sealing cover 12, a rotating shaft 13, a transmission wheel 14, and a testing assembly 15. The top of the base 11 is rotatably connected to the sealing cover 12 through the rotating shaft 13. A control panel 111 is fixed on the outer shell of the base 11. The base 11 is hollow, and a transmission wheel 14 is arranged at the bottom of the base 11; the top of the sealing cover 12 is fixedly connected to the rotating shaft 13, and two bearings 131 are sleeved on both sides of the rotating shaft 13. The two bearings 131 are respectively clamped on the opposite surfaces of two first support plates 132, and the two first support plates 132 are fixedly connected to the base 11; a plurality of transmission wheels 14 are rotatably connected to the bottom of the inner wall of the base 11, and a lithium battery body 5 is placed in the base 11. The lithium battery body 5 is located on the transmission wheel 14. Because the transmission wheel 14 is arranged, the workers can The staff can conveniently send the lithium battery body 5 into the testing mechanism 1 to avoid the situation where the friction between the lithium battery body 5 and the inside of the device is too large and it is difficult to slide; there are three test components 15, which are respectively arranged on the left and right sides and the upper side of the inside of the base 11. The test component 15 includes a telescopic sleeve 151 and a metal test piece 152. Each telescopic sleeve 151 is fixedly connected to the left and right sides and the upper side of the inside of the base 11, and the free end of the telescopic sleeve 151 is fixedly connected to the metal test piece 152. Due to the use of the telescopic sleeve 151 and the metal test piece 152, when the gas enters the telescopic sleeve 151, the telescopic sleeve 151 will push the metal test piece 152 to move, so that the device can test lithium battery bodies 5 of different sizes, thereby ensuring the applicability of the device.

[0034] like Figure 3 As shown, the pressure mechanism 3 includes a sealing sleeve 31, a spring 32, and an extrusion rod 33. The sealing sleeve 31 is fixedly connected to the sealing box 2 near the through hole 21. The extrusion rod 33 is slidably connected inside the sealing sleeve 31. A plurality of springs 32 are arranged inside the sealing sleeve 31. The two ends of the plurality of springs 32 are respectively fixedly connected to the sealing box 2 and the extrusion rod 33. The sealing sleeve 31 is connected to the sealing box 2 through the through hole 21.

[0035] like Figure 1 , Figure 2As shown, the gas transmission mechanism 4 includes a four-way 41, a sliding sleeve 42, a sliding rod 43, and a connecting pipe 44. One port of the four-way 41 is connected and fixed on the top wall of the sealing box 2, and the other three ports of the four-way 41 are respectively connected to three connecting pipes 44; the free end of the connecting pipe 44 located in the middle is connected to the sliding sleeve 42, and the sliding sleeve 42 is slidably connected with the sliding rod 43. The sliding rod 43 is slidably connected in the sliding sleeve 42 through a piston plate (not shown in the figure), and the bottom end of the sliding sleeve 42 is fixedly connected with a second support plate 45, and the second support plate 45 is fixedly connected to the base 11. The free end of the sliding rod 43 is fixedly connected to the sealing cover 12, and the free ends of the other two connecting pipes 44 pass through the base 11 and are respectively connected to the three telescopic sleeves 151. The sliding rod 43 and the sliding sleeve 42 are both arranged in an arc shape, which ensures that when the gas enters the sliding sleeve 42, the sliding rod 43 can synchronously squeeze the sealing cover 12 to flip along the rotating shaft 13, thereby ensuring the stability of the sealing cover 12 during operation.

[0036] The working principle of the utility model is:

[0037] When using the device, it is only necessary to open the sealing cover 12 through the control panel 111, so that the sealing cover 12 is turned over along the rotating shaft 13, and at this time the sliding rod 43 will slide in the sliding sleeve 42, so that the sliding sleeve 42 will transport the gas into the sealing box 2, and as the sealing cover 12 is opened, the squeezing rod 33 will squeeze the lithium battery body 5 inside the device, so that the device can simultaneously discharge the lithium battery body 5 inside the test mechanism 1 through the squeezing rod 33 while opening the sealing cover 12, thereby reducing the difficulty of using the device;

[0038] After the sealing cover 12 is opened, it is only necessary to place the lithium battery body 5 to be tested on the conveying wheel 14, and then squeeze the lithium battery body 5 backwards, so that the lithium battery body 5 contacts the squeezing rod 33 and pushes the squeezing rod 33 to transport the gas in the sealing sleeve 31 to the sealing box 2. After the lithium battery body 5 is completely pushed into the testing mechanism 1, it is necessary to close the fixation of the sealing cover 12 through the control panel 111. At this time, the gas will enter the three telescopic sleeves 151 and the sliding sleeve 42 along the three connecting tubes 44 respectively, and push the sliding rod 43 and the sealing cover 12 to flip along the rotating shaft 13 while pushing the metal test piece 152 to contact the lithium battery body 5. After the lithium battery body 5 contacts the metal test piece 152, the metal test piece 152 can be used to detect whether the lithium battery body 5 has leakage. During the test, there is no need for personnel to touch the lithium battery body 5, thereby effectively improving the safety of the device when used and avoiding electric shock.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lithium battery performance testing device, characterized in that: It comprises a testing mechanism (1), a sealing box (2), a pressure mechanism (3), and a gas transmission mechanism (4); A sealed box (2) is provided on one side of the test mechanism (1); a pressure mechanism (3) is provided in communication with the sealed box (2) near the test mechanism (1); the pressure mechanism (3) is provided inside the test mechanism (1); and a gas transmission mechanism (4) is provided in communication with the sealed box (2) and the test mechanism (1).

2. A lithium battery performance testing device according to claim 1, characterized in that: A plurality of through holes (21) are provided on the sealing box (2) near the pressure mechanism (3), and the sealing box (2) is connected to the pressure mechanism (3) through the plurality of through holes (21).

3. A lithium battery performance testing device according to claim 2, characterized in that: The pressure mechanism (3) comprises a sealing sleeve (31), a spring (32), and an extrusion rod (33); the sealing sleeve (31) is fixedly connected to the sealing box (2) near the through hole (21); the extrusion rod (33) is slidably connected inside the sealing sleeve (31); a plurality of springs (32) are arranged inside the sealing sleeve (31); two ends of the plurality of springs (32) are respectively fixedly connected to the sealing box (2) and the extrusion rod (33); the sealing sleeve (31) is connected to the sealing box (2) through the through hole (21).

4. A lithium battery performance testing device according to claim 1, characterized in that: The testing mechanism (1) comprises a base (11), a sealing cover (12), a rotating shaft (13), and a testing assembly (15); the base (11) is hollow; the top of the base (11) is rotatably connected to the sealing cover (12) via the rotating shaft (13); and three testing assemblies (15) are provided, which are respectively arranged on the left and right sides and the upper side of the base (11).

5. A lithium battery performance testing device according to claim 4, characterized in that: The testing mechanism (1) further comprises a transmission wheel (14), and a plurality of transmission wheels (14) are rotatably connected to the bottom of the inner wall of the base (11).

6. A lithium battery performance testing device according to claim 4, characterized in that: A control panel (111) is fixed on the outer shell of the base body (11).

7. A lithium battery performance testing device according to claim 4, characterized in that: The test assembly (15) comprises a telescopic sleeve (151) and a metal test piece (152), each of the telescopic sleeves (151) being fixedly connected to the left and right sides and the upper side of the inside of the base (11), and the free ends of the telescopic sleeves (151) are fixedly connected to the metal test piece (152), and the telescopic sleeves (151) are connected to the gas transmission mechanism (4).

8. A lithium battery performance testing device according to claim 4, characterized in that: The top of the sealing cover (12) is fixedly connected to a rotating shaft (13), and two bearings (131) are sleeved on both sides of the rotating shaft (13). The two bearings (131) are respectively clamped on opposite surfaces of two first support plates (132), and the two first support plates (132) are fixedly connected to the base (11).

9. A lithium battery performance testing device according to claim 4, characterized in that: The gas transmission mechanism (4) comprises a four-way (41), a sliding sleeve (42), a sliding rod (43), and a connecting pipe (44); one port of the four-way (41) is connected and fixed on the top wall of the sealing box (2); the other three ports of the four-way (41) are respectively connected to three connecting pipes (44); the free end of the connecting pipe (44) located in the middle is connected to the sliding sleeve (42); a sliding rod (43) is slidably connected in the sliding sleeve (42); the sliding rod (43) is slidably connected in the sliding sleeve (42) through a piston plate; the bottom end of the sliding sleeve (42) is fixedly connected to the base (11); the free end of the sliding rod (43) is fixedly connected to the sealing cover (12); the free ends of the other two connecting pipes (44) pass through the base (11) and are respectively connected to the three test assemblies (15); the sliding rod (43) and the sliding sleeve (42) are both arranged in an arc shape.

10. A lithium battery performance testing device according to claim 9, characterized in that: The bottom end of the sliding sleeve (42) is fixedly connected to a second support plate (45), and the second support plate (45) is fixedly connected to the base (11).

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