Device and method for detecting physical compressive property of battery

Abstract

The invention relates to the technical field of battery detection, in particular to a battery physical compression resistance detection device and method. And the triggering assembly comprises a fixing plate, and the top of the fixing plate is fixedly connected with a guide plate. The first spring releases potential energy to push the detection cone to penetrate into the battery main body, and under the inertia effect until the clamping piece abuts against the tail end of the sliding column, so that the crochet hook is not hung on the V-shaped buckle any more, the potential energy of the first spring is released, and the clamping piece is impacted through the impact block to enable the detection cone to be separated from the battery main body. Therefore, when the detection cone performs physical pressure puncture detection on the battery main body, the detection cone can be quickly separated from the battery main body, so that the phenomena of structural damage and annealing on the surface and the tail end of the detection cone caused by detonation when the internal structure of the battery main body is damaged are avoided; and the molten material in the battery main body is attached to the tail end and the surface of the detection cone.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and in particular to a device and method for detecting the physical compressive properties of a battery. Background Art

[0002] The physical compression test of the battery is a standard to measure the stability of the battery during use. According to the usage scenario and battery type, it is divided into a variety of physical compression test methods, including physical puncture test.

[0003] When conducting physical penetration testing, traditional testing methods generally use the free fall of heavy objects to perform physical pressure penetration testing on batteries. However, after piercing the battery, this method damages the internal structure of the battery, causing the battery to explode, and causing the detection cone that has penetrated the battery to remain in the battery and be affected by the explosion. The surface and head of the detection cone will be affected by high temperature, which will cause the detection cone to anneal and reduce its hardness. The explosion will also cause damage to the surface of the detection cone and adhesion of residual molten material from the battery. As a result, after multiple tests, the puncture ability of the detection cone will decrease, affecting its service life. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for testing the physical compressive properties of batteries, so as to solve the problem mentioned in the above background technology that the detection cone inserted into the battery remains in the battery and is affected by the explosion, which will cause the surface and cone head of the detection cone to be affected by high temperature, thereby annealing the detection cone, reducing its hardness, and also causing damage to the surface of the detection cone and residual molten material in the battery due to the explosion, so that after multiple tests, the puncture ability of the detection cone is reduced, affecting the service life. To achieve the above purpose, the present invention provides the following technical solutions: a device and method for testing the physical compressive properties of batteries, including a test bench;

[0005] A trigger assembly, the trigger assembly comprising a fixed plate, the top of the fixed plate is fixedly connected to a guide plate, the top of the fixed plate is fixedly connected to a V-shaped buckle, a hook is hung on the V-shaped groove on the V-shaped buckle, the other end of the hook is fixedly connected to a sliding column, and the surface of the sliding column is movably sleeved with a support rod;

[0006] An impact assembly, the impact assembly comprising a first slide bar, a slide sleeve movably connected to the side surface of the first slide bar, an impact block is fixedly connected to the opposite sides of the two slide sleeves, an L-shaped rod is fixedly connected to one side of one of the slide sleeves, the other end of the L-shaped rod is fixedly connected to one side of the slide column, one end of the first slide bar is fixedly connected to a first vertical plate, a first spring is movably connected to the side surface of the first slide bar on the side of the first vertical plate opposite to the slide sleeve, and the first spring is movably connected to the side surface of the first slide bar;

[0007] A force storage component, the force storage component includes a second vertical plate, one side of the second vertical plate is fixedly connected to a support platform, the top of the support platform is fixedly connected to a push rod motor, the output end of the push rod motor is fixedly connected to a slider, a slide groove is provided inside the second vertical plate and the slider is movably sleeved in the slide groove, the top and bottom of the slider are fixedly connected to a clamping spring sheet, the second vertical plate is fixedly connected to a second slide rod on the side opposite to the first vertical plate, a limiting ring is fixedly sleeved on the side surface of the second slide rod, and a second spring is movably sleeved on the side surface of the second slide rod;

[0008] The puncture assembly includes a snap-in piece, which is movably sleeved on the second sliding rod, a detection cone is fixedly connected to one side of the snap-in piece, a snap-in groove for snapping the snap-in spring piece is provided inside the snap-in piece, and the two ends of the second spring are respectively movably connected to the snap-in piece and the side opposite to the second vertical plate.

[0009] Further preferably, one side of the fixed plate is fixedly connected to one side of the first vertical plate, a through hole is opened inside the first vertical plate for detecting the penetration of the cone, the bottom of the first vertical plate is fixedly connected to the top of the test bench, and the hook is made of metal material that can be elastically deformed and bent.

[0010] Further preferably, the snap-on spring piece is made of metal material that can be elastically deformed and bent, the surface contour of the slider matches the slide groove, the limit ring is used to limit the movement limit position of the snap-on piece, and the bottom of the second vertical plate is fixedly connected to one side of the top of the test bench.

[0011] Further preferably, a baffle is fixedly connected to the other side of the top of the test bench, an enclosure is fixedly connected to the top of the top of the test bench and both ends of the enclosure are fixedly connected to one side of the baffle, and a U-shaped bracket is fixedly connected to one side of the baffle.

[0012] Further preferably, a battery body to be physically tested for compression resistance is provided on the top of the test bench, one side of the battery body is in contact with a baffle, and the other three sides of the battery body are movably connected with clamps.

[0013] Further preferably, one end of the clamping plate away from the battery body is fixedly connected to a threaded rod, and the threaded rod is threadedly connected to the U-shaped bracket, and the other end of the threaded rod is fixedly connected to an adjustment button.

[0014] A method for detecting the physical compressive properties of a battery comprises the following steps:

[0015] S1: Before use, first place the battery body to be physically tested for compression resistance in the enclosure, and fix the battery body by rotating the threaded rod, the clamping plate and the adjusting knob;

[0016] S2: When in use, the push rod motor is started to move the output end of the push rod motor in the direction of the push rod motor, thereby driving the slider and the clamping spring piece to move in the direction of the push rod motor. Since the clamping spring piece pulls the clamping piece through the clamping groove, the detection cone is also moved together, and the second spring accumulates potential energy at the same time;

[0017] S3: When the connection between the clamping spring piece and the slider moves to the edge of the slide groove, the two clamping spring pieces are elastically deformed and approach each other under the reaction force of the slide groove edge, until the end of the clamping spring piece is separated from the clamping groove. After the separation, the clamping piece and the detection cone lose their constraints and are pushed in the opposite direction and quickly toward the battery body under the potential energy accumulated by the second spring until the detection cone penetrates into the battery body. As the detection cone continues to penetrate, the clamping piece will contact the slide column and the limit ring, and the excessively long slide column will first contact the clamping piece. Before the clamping piece and the end of the slide column are not in contact, the hook is hooked in the V-shaped groove on the V-shaped buckle, so that the potential energy of the first spring cannot be released;

[0018] S4: When the clamping piece contacts the end of the sliding column, the hook moves toward the battery body under the force. Since the guide plate is inclined, the hook abuts against the inclined surface of the guide plate and forces the hook to deform elastically. When the hook moves to the farthest end of the guide plate, the first spring pushes the impact block and the hook to move toward the clamping piece under the force of the first spring. At this time, the hook gradually recovers through elastic deformation and abuts against the inclined surface on the other side of the guide plate. Due to the excessively long guide plate, the hook cannot be hooked on the V-shaped buckle again, so that the first spring is no longer constrained. At this time, the clamping piece and the limit ring have formed abutment.

[0019] S5: The first spring releases potential energy to push the impact block and after a certain distance, it moves under the action of inertia until the impact block contacts the card plate, so that the impact block applies a force to make the card plate and the detection cone slide in the opposite direction until they are gradually offset under the action of the second spring. At this time, the detection cone has been separated from the battery body. The physical pressure puncture detection result is obtained by observing whether the battery body explodes, the changes in the internal structure after puncture, and whether it is punctured.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, the potential energy released by the first spring pushes the detection cone to penetrate into the battery body, and under the action of inertia, the clamping piece abuts against the end of the sliding column, so that the hook needle is no longer hooked on the V-shaped buckle, thereby releasing the potential energy of the first spring, and the impact block impacts the clamping piece to separate the detection cone from the battery body, so that when the detection cone performs physical pressure puncture detection on the battery body, the detection cone can be quickly separated from the battery body, avoiding explosion when the internal structure of the battery body is damaged, causing structural damage and annealing to the surface and end of the detection cone, and the molten material in the battery body is attached to the end and surface of the detection cone, so that the service life of the detection cone can be effectively extended, and subsequent surface cleaning of the detection cone can be avoided, thereby improving the continuity and detection efficiency during detection.

[0022] In the present invention, the potential energy release of the first spring is constrained by the elastically deformable hook needle, so that the detection cone can be quickly released when the battery body is subjected to physical pressure puncture detection, and the impact block impacts the clamping piece, so that the detection cone and the battery body are further separated, thereby further reducing the impact of the explosion on the detection cone when the battery body structure is damaged, and the detection cone is separated from the battery body before the heat of the battery body is completely released. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 Schematic diagram of the explosion structure of the present invention Figure 1 ;

[0025] Figure 3 Schematic diagram of the explosion structure of the present invention Figure 2 ;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of part of the trigger assembly and the impact assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the top view of the structure of part of the trigger assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of part of the trigger assembly of the present invention.

[0029] In the figure: 1, test bench; 2, trigger assembly; 3, impact assembly; 4, power storage assembly; 5, puncture assembly; 6, perforation; 7, baffle; 8, U-shaped bracket; 9, adjustment button; 10, threaded rod; 11, clamping plate; 12, battery body; 13, enclosure; 14, first vertical plate; 201, fixing plate; 202, guide plate; 203, V-shaped buckle; 204, hook; 205, sliding column; 206, L-shaped rod ; 207, support rod; 301, first slide rod; 302, impact block; 303, sliding sleeve; 304, first spring; 401, second vertical plate; 402, slide groove; 403, slider; 404, snap-on spring piece; 405, push rod motor; 406, support table; 407, second spring; 408, second slide rod; 409, limit ring; 501, snap-on piece; 502, detection cone; 503, snap-on groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 6 , the present invention provides a technical solution: a device and method for detecting the physical compressive properties of a battery, comprising a test bench 1;

[0032] The trigger assembly 2 includes a fixing plate 201, a guide plate 202 is fixedly connected to the top of the fixing plate 201, a V-shaped buckle 203 is fixedly connected to the top of the fixing plate 201, a hook 204 is hung on the V-shaped groove on the V-shaped buckle 203, the other end of the hook 204 is fixedly connected to a sliding column 205, and a support rod 207 is movably sleeved on the surface of the sliding column 205;

[0033] The impact assembly 3 includes a first slide bar 301, a side surface of the first slide bar 301 is movably sleeved with a slide sleeve 303, and the two opposite sides of the two slide sleeves 303 are fixedly connected with an impact block 302, one side of one slide sleeve 303 is fixedly connected with an L-shaped rod 206, and the other end of the L-shaped rod 206 is fixedly connected to one side of the slide column 205, one end of the first slide bar 301 is fixedly connected with a first vertical plate 14, and the first vertical plate 14 is movably connected with a first spring 304 on the side opposite to the slide sleeve 303, and the first spring 304 is movably sleeved on the side surface of the first slide bar 301;

[0034] The force storage component 4 includes a second vertical plate 401, a support platform 406 is fixedly connected to one side of the second vertical plate 401, a push rod motor 405 is fixedly connected to the top of the support platform 406, a slider 403 is fixedly connected to the output end of the push rod motor 405, a slide groove 402 is provided inside the second vertical plate 401 and the slider 403 is movably sleeved in the slide groove 402, a clamping spring 404 is fixedly connected to the top and bottom of the slider 403, a second slide bar 408 is fixedly connected to the side of the second vertical plate 401 opposite to the first vertical plate 14, a limiting ring 409 is fixedly sleeved on the side surface of the second slide bar 408, and a second spring 407 is movably sleeved on the side surface of the second slide bar 408;

[0035] The puncture assembly 5 includes a snap-in piece 501, which is movably sleeved on the second slide rod 408. A detection cone 502 is fixedly connected to one side of the snap-in piece 501. A snap-in groove 503 for snapping the snap spring 404 is provided inside the snap-in piece 501. The two ends of the second spring 407 are movably connected to the snap-in piece 501 and the opposite side of the second vertical plate 401.

[0036] In this embodiment, Figure 1 and Figure 2 As shown, one side of the fixed plate 201 is fixedly connected to one side of the first vertical plate 14, a through hole 6 is provided inside the first vertical plate 14 for the detection cone 502 to pass through, the bottom of the first vertical plate 14 is fixedly connected to the top of the test bench 1, and the hook 204 is made of metal material that can be elastically deformed and bent.

[0037] In this embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the snap-on spring piece 404 is made of metal material that can be elastically deformed and bent, the surface contour of the slider 403 matches the slide groove 402, the limiting ring 409 is used to limit the movement limit position of the snap-on piece 501, and the bottom of the second vertical plate 401 is fixedly connected to one side of the top of the test bench 1.

[0038] In this embodiment, Figure 1 and Figure 2 As shown, a baffle 7 is fixedly connected to the other side of the top of the test bench 1, a fence 13 is fixedly connected to the top of the top of the test bench 1 and both ends of the fence 13 are fixedly connected to one side of the baffle 7, and a U-shaped bracket 8 is fixedly connected to one side of the baffle 7.

[0039] In this embodiment, Figure 1 and Figure 2 As shown, a battery body 12 for physical compression resistance test is provided on the top of the test bench 1 , one side of the battery body 12 abuts against the baffle 7 , and the other three sides of the battery body 12 are movably connected with clamps 11 .

[0040] In this embodiment, Figure 1 and Figure 2 As shown, one end of the clamping plate 11 away from the battery body 12 is fixedly connected to a threaded rod 10 and the threaded rod 10 is threadedly connected to the U-shaped bracket 8, and the other end of the threaded rod 10 is fixedly connected to the adjusting button 9.

[0041] A method for detecting the physical compressive properties of a battery comprises the following steps:

[0042] S1: Before use, the battery body 12 to be physically tested for compression resistance is first placed in the enclosure 13, and the battery body 12 is fixed by rotating the threaded rod 10, the clamping plate 11 and the adjusting button 9;

[0043] S2: When in use, the push rod motor 405 is started to move the output end of the push rod motor 405 in the direction of the push rod motor 405, thereby driving the slider 403 and the clamping spring 404 to move in the direction of the push rod motor 405. Since the clamping spring 404 pulls the clamping sheet 501 through the clamping groove 503, the detection cone 502 also moves together, and the second spring 407 accumulates potential energy.

[0044] S3: When the connection between the clamping spring piece 404 and the slider 403 moves to the edge of the slide slot 402, the two clamping spring pieces 404 are elastically deformed and move closer to each other under the reaction force of the edge of the slide slot 402 until the end of the clamping spring piece 404 is separated from the clamping slot 503. After the separation, the clamping piece 501 and the detection cone 502 lose their constraints and push the clamping piece 501 and the detection cone 502 in the opposite direction and quickly under the potential energy accumulated by the second spring 407. The cone 502 moves toward the battery body 12 until the detection cone 502 penetrates into the battery body 12. As the detection cone 502 continues to penetrate, the clamping piece 501 contacts the slide post 205 and the limit ring 409, and the excessively long slide post 205 first contacts the clamping piece 501. Before the clamping piece 501 contacts the end of the slide post 205, the hook 204 is hooked in the V-shaped groove on the V-shaped buckle 203, so that the potential energy of the first spring 304 cannot be released.

[0045] S4: When the clamping piece 501 contacts the end of the sliding column 205, the hook needle 204 moves toward the battery body 12 under the force. Since the guide plate 202 is inclined, the hook needle 204 abuts against the inclined surface of the guide plate 202 and forces the hook needle 204 to deform elastically. When the hook needle 204 moves to the farthest end of the guide plate 202, the first spring 304 pushes the impact block 302 and the hook needle 204 to move toward the clamping piece 501 under the force of the first spring 304. At this time, the hook needle 204 gradually recovers through elastic deformation and abuts against the inclined surface on the other side of the guide plate 202. Due to the excessively long guide plate 202, the hook needle 204 cannot be hooked on the V-shaped buckle 203 again, so that the first spring 304 is no longer constrained. At this time, the clamping piece 501 has abutted against the limiting ring 409.

[0046] S5: The first spring 304 releases potential energy to push the impact block 302 and after a certain distance, it moves under the action of inertia until the impact block 302 contacts the clamping piece 501, so that the impact block 302 applies a force to make the clamping piece 501 and the detection cone 502 slide in opposite directions until they are gradually offset under the action of the second spring 407. At this time, the detection cone 502 has been separated from the battery body 12. The physical pressure puncture detection result is obtained by observing whether the battery body 12 explodes, the changes in the internal structure after puncture, and whether it is punctured.

[0047] The use method and advantages of the present invention: The battery physical compressive property detection device and method, when used, the working process is as follows:

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, before use, the battery body 12 to be physically tested for compression resistance is first placed in the enclosure 13, and the battery body 12 is fixed by rotating the threaded rod 10, the clamping plate 11 and the adjusting button 9. When in use, the push rod motor 405 is started to move the output end of the push rod motor 405 in the direction of the push rod motor 405, thereby driving the slider 403 and the snap-on spring 404 to move in the direction of the push rod motor 405. Since the snap-on spring 404 pulls the snap-on piece 501 through the snap-on groove 503, the detection cone 502 is also moved. At the same time, the second spring 407 accumulates potential energy. When the connection between the snap-on spring 404 and the slider 403 moves to When the slide groove 402 is at the edge, the two engaging springs 404 are elastically deformed and approach each other under the reaction force of the slide groove 402, until the end of the engaging spring 404 is separated from the engaging groove 503. After the separation, the engaging piece 501 and the detection cone 502 lose their constraints and push the engaging piece 501 and the detection cone 502 in the opposite direction and quickly move toward the battery body 12 under the potential energy accumulated by the second spring 407, until the detection cone 502 penetrates into the battery body 12. As the detection cone 502 continues to penetrate, the engaging piece 501 will contact the sliding column 205 and the limiting ring 409, and the sliding column 205 that is too long will first abut against the engaging piece 501. Before the end of the slide post 205 makes contact, the hook needle 204 is hooked in the V-shaped groove on the V-shaped buckle 203, so that the potential energy of the first spring 304 cannot be released. When the clamping piece 501 contacts the end of the slide post 205, the hook needle 204 moves toward the battery body 12 under the force. Since the guide plate 202 is inclined, the hook needle 204 abuts against the inclined surface of the guide plate 202 and forces the hook needle 204 to deform elastically. When the hook needle 204 moves to the farthest end of the guide plate 202, the first spring 304 pushes the impact block 302 and the hook needle 204 to move toward the clamping piece 501 under the force of the first spring 304. At this time, the hook needle 204 gradually deforms through elastic deformation. It gradually recovers and abuts against the inclined surface on the other side of the guide plate 202. Due to the excessively long guide plate 202, the hook needle 204 cannot be hooked on the V-shaped buckle 203 again, so that the first spring 304 is no longer constrained. At this time, the snap-fit ​​plate 501 and the limiting ring 409 have formed an abutment. The first spring 304 releases potential energy to push the impact block 302 and moves a certain distance under the action of inertia until the impact block 302 contacts the snap-fit ​​plate 501, so that the impact block 302 applies a force to make the snap-fit ​​plate 501 and the detection cone 502 slide in the opposite direction until they are gradually offset under the action of the second spring 407. At this time, the detection cone 502 has been detached from the battery body 12.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A battery physical compressive property detection device, characterized in that: A test bench (1) is included; A trigger assembly (2), the trigger assembly (2) comprising a fixing plate (201), the top of the fixing plate (201) being fixedly connected to a guide plate (202), the top of the fixing plate (201) being fixedly connected to a V-shaped buckle (203), a hook (204) being hung on a V-shaped groove on the V-shaped buckle (203), the other end of the hook (204) being fixedly connected to a sliding column (205), and a support rod (207) being movably sleeved on the surface of the sliding column (205); An impact assembly (3), the impact assembly (3) comprising a first sliding rod (301), a side surface of the first sliding rod (301) being movably sleeved with a sliding sleeve (303), two opposite sides of the two sliding sleeves (303) being fixedly connected with an impact block (302), one side of one of the sliding sleeves (303) being fixedly connected with an L-shaped rod (206), the other end of the L-shaped rod (206) being fixedly connected with one side of a sliding column (205), one end of the first sliding rod (301) being fixedly connected with a first vertical plate (14), a first spring (304) being movably sleeved with a side surface of the first sliding rod (301); A force storage component (4), the force storage component (4) comprising a second vertical plate (401), one side of the second vertical plate (401) is fixedly connected to a support platform (406), the top of the support platform (406) is fixedly connected to a push rod motor (405), the output end of the push rod motor (405) is fixedly connected to a slider (403), a slide groove (402) is provided inside the second vertical plate (401) and the slider (403) is movably sleeved in the slide groove (402), the top and bottom of the slider (403) are fixedly connected to a snap-on spring sheet (404), the side of the second vertical plate (401) opposite to the first vertical plate (14) is fixedly connected to a second slide bar (408), a limit ring (409) is fixedly sleeved on the side surface of the second slide bar (408), and a second spring (407) is movably sleeved on the side surface of the second slide bar (408); The puncture assembly (5) comprises a snap-in plate (501), the snap-in plate (501) is movably sleeved on the second slide bar (408), a detection cone (502) is fixedly connected to one side of the snap-in plate (501), a snap-in groove (503) for snapping with a snap-in spring sheet (404) is provided inside the snap-in plate (501), and two ends of the second spring (407) are movably connected to the snap-in plate (501) and the side opposite to the second vertical plate (401), respectively.

2. A battery physical compressive property detection device according to claim 1, characterized in that: One side of the fixed plate (201) is fixedly connected to one side of the first vertical plate (14); a through hole (6) for the detection cone (502) to pass through is provided inside the first vertical plate (14); the bottom of the first vertical plate (14) is fixedly connected to the top of the test bench (1); and the hook needle (204) is made of a metal material that can be elastically deformed and bent.

3. A battery physical compressive property detection device according to claim 1, characterized in that: The snap-fit ​​spring piece (404) is made of a metal material that can be elastically deformed and bent, the surface contour of the slider (403) matches the slide groove (402), the limiting ring (409) is used to limit the movement limit position of the snap-fit ​​piece (501), and the bottom of the second vertical plate (401) is fixedly connected to one side of the top of the test bench (1).

4. A battery physical compressive property detection device according to claim 1, characterized in that: A baffle (7) is fixedly connected to the other side of the top of the test bench (1), a fence (13) is fixedly connected to the top of the top of the test bench (1), and both ends of the fence (13) are fixedly connected to one side of the baffle (7), and a U-shaped bracket (8) is fixedly connected to one side of the baffle (7).

5. A battery physical compressive property detection device according to claim 1, characterized in that: A battery body (12) for physical compression resistance testing is provided on the top of the test bench (1); one side of the battery body (12) is in contact with a baffle (7); and the remaining three sides of the battery body (12) are movably connected to clamping plates (11).

6. A battery physical compressive property detection device according to claim 5, characterized in that: One end of the clamping plate (11) away from the battery body (12) is fixedly connected to a threaded rod (10), and the threaded rod (10) is threadedly connected to the U-shaped bracket (8), and the other end of the threaded rod (10) is fixedly connected to an adjustment button (9).

7. A method for detecting the physical compressive properties of a battery, characterized in that: The steps include: S1: Before use, the battery body (12) to be physically tested for compression resistance is first placed in the enclosure (13), and the battery body (12) is fixed by rotating the threaded rod (10), the clamping plate (11) and the adjusting button (9); S2: When in use, the push rod motor (405) is started to move the output end of the push rod motor (405) in the direction of the push rod motor (405), thereby driving the slider (403) and the engaging spring (404) to move in the direction of the push rod motor (405). Since the engaging spring (404) pulls the engaging sheet (501) through the engaging groove (503), the detection cone (502) also moves together, and at the same time, the second spring (407) accumulates potential energy; S3: When the connection between the clamping spring piece (404) and the slider (403) moves to the edge of the slide groove (402), the two clamping spring pieces (404) are elastically deformed and move closer to each other under the reaction force of the edge of the slide groove (402) until the end of the clamping spring piece (404) is separated from the clamping groove (503). After the separation, the clamping piece (501) and the detection cone (502) lose their restraint and are pushed in the opposite direction and quickly under the potential energy accumulated by the second spring (407). 2) moving toward the battery body (12) until the detection cone (502) penetrates into the battery body (12). As the detection cone (502) continues to penetrate, the clamping piece (501) will contact the slide post (205) and the limit ring (409), and the excessively long slide post (205) will first contact the clamping piece (501). Before the clamping piece (501) and the end of the slide post (205) are not in contact, the hook (204) is hooked in the V-shaped groove on the V-shaped buckle (203), so that the potential energy of the first spring (304) cannot be released; S4: When the clamping piece (501) contacts the end of the sliding column (205), the hook needle (204) moves toward the battery body (12) under the force. Since the guide plate (202) is inclined, the hook needle (204) abuts against the inclined surface of the guide plate (202), and the hook needle (204) is forced to deform elastically. When the hook needle (204) moves to the farthest end of the guide plate (202), the first spring (304) is pressed under the force of the first spring (304). The impact block (302) and the hook needle (204) are pushed to move in the direction of the clamping plate (501). At this time, the hook needle (204) gradually recovers through elastic deformation and abuts against the inclined surface on the other side of the guide plate (202). Since the guide plate (202) is too long, the hook needle (204) cannot be hooked on the V-shaped buckle (203) again, so that the first spring (304) is no longer constrained. At this time, the clamping plate (501) and the limiting ring (409) have formed abutment; S5: The first spring (304) releases potential energy to push the impact block (302) and move it over a certain distance under the action of inertia until the impact block (302) contacts the clamping piece (501), so that the impact block (302) applies a force to make the clamping piece (501) and the detection cone (502) slide in opposite directions until they are gradually offset by the action of the second spring (407). At this time, the detection cone (502) has been separated from the battery body (12). By observing whether the battery body (12) explodes, the changes in the internal structure after puncture, and whether it is punctured, the physical pressure puncture detection result is obtained.

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