Clamp for aging needling serial experiment

Abstract

The utility model discloses a clamp for an aging acupuncture serial experiment, which belongs to the technical field of battery experiments, and comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate fix a battery body through a fixing assembly, a through pinhole groove for an acupuncture experiment is formed in the first clamping plate or the second clamping plate, and the clamp further comprises a blocking block, the blocking block comprises an aging experiment state and a needling experiment state, when the blocking block is in the aging experiment state, the blocking block penetrates through the pinhole groove to be in contact with the battery body, and the outer wall of the blocking block is in contact connection with the inner wall of the pinhole groove; when the blocking block is in the acupuncture experiment state, the blocking block is separated from the needle hole groove. Through the mode, the first clamping plate and the second clamping plate fix the battery body, and when an aging experiment is carried out, the blocking block is inserted into the pinhole groove, so that the pinhole groove is prevented from influencing the expansion of the battery body in the aging experiment process; when an acupuncture experiment is carried out, the blocking block is taken away from the needle hole groove.

Description

Technical Field

[0001] The utility model relates to the technical field of battery experiments, in particular to a clamp for aging needle puncture serial experiments. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Lithium batteries will age during use, and the safety performance of the aged battery cells is an area that needs to be focused on. Therefore, the serial experiment of aging plus safety experiment is currently a very common experimental method. However, in actual practice, since the aging experiment is an ordinary electrical performance experiment, a general general fixture can be used, but the needle puncture experiment in safety requires a hole to be opened so that the needle can penetrate the battery cell, so a hole needs to be equipped in the fixture. However, the existence of this hole will affect the aging generation experiment, resulting in negative effects such as lithium precipitation. In addition, during the aging experiment, gas will be generated inside the battery, causing the battery to have obvious expansion. If the fixture is disassembled, the battery will expand immediately, resulting in too thick a thickness to be installed in the needle puncture test fixture. Therefore, a fixture that is suitable for both aging generation experiments and needle puncture experiments is needed. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model provides a fixture for aging acupuncture serial experiment.

[0004] The utility model proposes a clamp for aging needle puncture serial experiment, comprising a first clamp and a second clamp, the first clamp and the second clamp fix the battery body through a fixing assembly, the first clamp or the second clamp is provided with a penetrating pinhole slot for needle puncture experiment, and also comprises a blocking block, the blocking block comprises an aging experiment state and a needle puncture experiment state, when the blocking block is in the aging experiment state, the blocking block passes through the pinhole slot and contacts with the battery body, and the outer wall of the blocking block contacts and connects with the inner wall of the pinhole slot; when the blocking block is in the needle puncture experiment state, the blocking block is separated from the pinhole slot.

[0005] In the utility model, a clamp for aging needle puncture serial experiment is proposed, a buffer component is installed on the second clamp or the first clamp, the other side of the buffer component is in contact with the battery body, and the buffer component and the pinhole groove are located on both sides of the battery body.

[0006] The utility model provides a fixture for aging acupuncture serial experiment, wherein one side of a first clamping plate and a second clamping plate is provided with an observation port, and the observation port runs through the first clamping plate and the second clamping plate.

[0007] In the utility model, a fixture for aging acupuncture serial experiment is proposed, and the fixing assembly includes a screw and a nut. The two ends of the screw pass through the first clamp and the second clamp respectively, and the screw extending from the first clamp and the second clamp is respectively threadedly connected with a group of nuts.

[0008] The utility model provides a fixture for aging acupuncture serial experiment, wherein the outer part of the screw rod is sleeved with a screw sleeve, and the two ends of the screw sleeve are respectively in contact with and connected to the inner walls of the first clamping plate and the second clamping plate.

[0009] In the utility model, a clamp for aging needle puncture serial experiment is proposed, which also includes a support plate, the pinhole groove is close to the support plate, a driving member is installed on the support plate, the first clamp plate / the second clamp plate is fixedly connected to the output end of the driving member, and a linkage component for changing the state of the blocking block with the movement of the battery body is installed on the output end of the driving member, and the other end of the linkage component is connected to the blocking block.

[0010] In the utility model, a fixture for aging needle puncture serial experiment is proposed. When the battery body is located at the aging position, the linkage component drives the blocking block to be inserted into the pinhole groove; when the battery body is located at the needle puncture position, the linkage component drives the blocking block to leave the pinhole groove.

[0011] In the utility model, a clamp for an aging acupuncture serial experiment is proposed, and a linkage component includes an elastic member and a connecting plate, the connecting plate is installed on the blocking block, the two ends of the elastic member are respectively fixedly connected to the connecting plate and the support plate, an inclined hole is opened on the blocking block, and the end of the inclined hole away from the support plate is a first inclined surface that gradually moves away from the support plate from the acupuncture station to the aging station, an L-shaped plate is installed on the output end of the driving member, the L-shaped plate is slidably connected to the first inclined surface of the inclined hole, and the end of the L-shaped plate close to the inclined hole is a second inclined surface parallel to the first inclined surface.

[0012] In the utility model, a clamp for an aging needle-puncture serial experiment is proposed. When the battery body is located at the needle-puncture station, the elastic member is stretched, and the side of the L-shaped plate away from the support plate is in contact and connected with the side of the first inclined surface close to the support plate; when the battery body is located at the aging station, the elastic member returns to its original shape, and the tip of the L-shaped plate is in contact and connected with the end of the first inclined surface away from the needle-puncture station.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] Place the battery body between the second clamping plate and the sponge pad, and then tighten the nut. Fix the battery body with the first clamping plate and the second clamping plate through the screw and the screw sleeve. When conducting an aging test, insert the blocking block into the pinhole groove to prevent the pinhole groove from affecting the expansion of the battery body during the aging test, and observe the expansion of the battery from the observation port. When conducting a puncture test, remove the blocking block from the pinhole groove to facilitate the experimental needle to penetrate into the battery body from the pinhole groove for the test.

[0015] The second clamping plate is placed on the aging position on the support plate. At this time, the driving part drives the highest point of the inclined surface of the L-shaped plate to be flush with the lowest point of the bottom end of the inclined hole, and the elastic part returns to its original shape. The elastic part drives the blocking block to pass through the give-way groove and be inserted into the pinhole groove until the blocking block contacts the bottom end of the battery body. The second clamping plate becomes a complete plate to prevent the pinhole groove from affecting the expansion of the battery body during the aging experiment; when a puncture test is required, the driving part pushes the nut at the lower end of the second clamping plate to move on the support plate, and the driving part drives the L-shaped plate to pass through the moving groove and slide on the inclined hole. Since the L-shaped plate moves horizontally and the contact surface with the inclined hole is an inclined surface, the L-shaped plate drives the blocking block to descend through the inclined hole until the blocking block leaves the pinhole groove, the elastic part stretches, and the second clamping plate moves to the top of the experimental groove, so that the experimental groove and the pinhole groove are aligned in the vertical direction to facilitate acupuncture.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the utility model Figure 1 ;

[0018] Figure 2 It is a left view of the utility model;

[0019] Figure 3 The three-dimensional structure of the utility model Figure 2 ;

[0020] Figure 4 For this utility model Figure 2 Cross-sectional view in the AA direction.

[0021] Figure numerals: 1. Support plate; 2. First clamping plate; 3. Second clamping plate; 4. Fixing assembly; 41. Screw; 42. Nut; 43. Screw sleeve; 5. Buffer assembly; 51. Sponge pad; 6. Battery body; 7. Pinhole slot; 8. Experimental slot; 9. Observation port; 10. Blocking block; 11. Driving member; 111. Cylinder; 12. Linkage assembly; 121. Elastic member; 122. L-shaped plate; 123. Connecting plate; 124. Oblique hole; 13. Moving slot; 14. Give way slot. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] Example 1

[0024] like Figure 1-4 The fixture for a serial aging needle punching experiment shown includes a first clamping plate 2 and a second clamping plate 3;

[0025] The battery body 6 to be tested is placed between the first clamping plate 2 and the second clamping plate 3. The first clamping plate 2 and the second clamping plate 3 fix the battery body 6 through the fixing assembly 4. A buffer assembly 5 is installed between the first clamping plate 2 and the battery body 6. A pinhole slot 7 for the pinhole test is provided on the second clamping plate 3. A blocking block 10 is also included. The blocking block 10 includes an aging test state and a pinhole test state. When the blocking block 10 is in the aging test state, the blocking block 10 is inserted into the pinhole slot 7, and the outer wall of the blocking block 10 is in contact with the inner wall of the pinhole slot 7.

[0026] The fixing assembly 4 includes a screw rod 41 and a nut 42 . Two ends of the screw rod 41 pass through the first clamping plate 2 and the second clamping plate 3 respectively. The screw rod 41 extending out of the first clamping plate 2 and the second clamping plate 3 is threadedly connected with a set of nuts 42 respectively.

[0027] Preferably, a threaded sleeve 43 is sleeved on the outside of the screw rod 41 , and two ends of the threaded sleeve 43 are in contact and connected with the inner walls of the first clamping plate 2 and the second clamping plate 3 respectively.

[0028] Preferably, the buffer assembly 5 includes a sponge pad 51 , and two ends of the sponge pad 51 are in contact and connected with the first clamping plate 2 and the battery body 6 respectively.

[0029] Preferably, four sets of screw rods 41 are respectively installed on both sides of the battery body 6 .

[0030] Preferably, an observation port 9 is opened on one side of the first clamping plate 2 and the second clamping plate 3 , and the observation port 9 passes through the first clamping plate 2 and the second clamping plate 3 . Two sets of screws 41 are installed on one side of the observation port 9 , and the two sets of screws 41 are installed on both sides of the observation port 9 respectively.

[0031] The battery body 6 is placed between the second clamping plate 3 and the sponge pad 51, and the nut 42 is tightened. The first clamping plate 2 and the second clamping plate 3 are fixed to the battery body 6 through the screw 41 and the screw sleeve 43. When the aging test is carried out, the blocking block 10 is inserted into the pinhole groove 7 to prevent the pinhole groove 7 from affecting the expansion of the battery body 6 during the aging test, and the expansion degree of the battery can be conveniently observed from the observation port 9; when the puncture test is carried out, the blocking block 10 is removed from the pinhole groove 7 to facilitate the experimental needle to penetrate into the battery body 6 from the pinhole groove 7 for the experiment.

[0032] It also includes a support plate 1, on which are provided an experimental slot 8 located at the acupuncture station, a yield slot 14 located at the aging station, and a moving slot 13. A driving member 11 for driving the second clamping plate 3 to move on the support plate 1 is installed at one end of the support plate 1 close to the moving slot 13. The output end of the driving member 11 is fixedly connected to the second clamping plate 3. The output end of the driving member 11 is fixedly connected to a linkage component 12 for changing the state of the blocking block 10 as the second clamping plate 3 moves. The other end of the linkage component 12 passes through the moving slot 13 and is connected to the bottom end of the blocking block 10. When the second clamping plate 3 is located at the aging station, the linkage component 12 drives the blocking block 10 to pass through the yield slot 14 and be inserted into the pinhole slot 7; when the second clamping plate 3 is located at the acupuncture station, the linkage component 12 drives the blocking block 10 to leave the pinhole slot 7, and the pinhole slot 7 and the experimental slot 8 are in the same vertical direction.

[0033] The linkage assembly 12 includes an elastic member 121, an L-shaped plate 122 and a connecting plate 123. The connecting plate 123 is installed on the blocking block 10. The two ends of the elastic member 121 are fixedly connected to the connecting plate 123 and the bottom end of the support plate 1 respectively. An inclined hole 124 is provided on the blocking block 10 below the connecting plate 123. The bottom end of the inclined hole 124 gradually moves away from the support plate 1 from the experimental slot 8 to the give way slot 14. One end of the L-shaped plate 122 is fixedly connected to the output end of the driving member 11, and the other end of the L-shaped plate 122 is slidably connected to the bottom end of the inclined hole 124. The end of the L-shaped plate 122 close to the inclined hole 124 is an inclined surface parallel to the bottom end of the inclined hole 124.

[0034] The driving member 11 comprises a cylinder, and the top end of the L-shaped plate 122 is fixedly connected to the output end of the cylinder.

[0035] When the second splint 3 is located at the aging station, the elastic member 121 returns to its original shape, and the highest point of the inclined surface of the L-shaped plate 122 is flush with the lowest point of the bottom end of the inclined hole 124; when the second splint 3 is located at the acupuncture station, the elastic member 121 is stretched, and the lowest point of the L-shaped plate 122 is flush with the highest point of the bottom end of the inclined hole 124.

[0036] Preferably, the elastic member 121 is a spring, both ends of the spring are fixedly connected to the connecting plate 123 and the bottom end of the supporting plate 1 respectively, and the blocking block 10 is inserted into the spring.

[0037] The second clamping plate 3 is placed on the aging position on the support plate 1. At this time, the driving member 11 drives the highest point of the inclined surface of the L-shaped plate 122 to be flush with the lowest point of the bottom end of the inclined hole 124, and the elastic member 121 returns to its original shape. The elastic member 121 drives the blocking block 10 to pass through the clearance groove 14 and be inserted into the pinhole groove 7 until the blocking block 10 contacts the bottom end of the battery body 6. The second clamping plate 3 becomes a complete plate to prevent the pinhole groove 7 from affecting the expansion of the battery body 6 during the aging test. When the needle puncture test is required, the driving member 1 The nut 42 at the lower end of the second clamping plate 3 is pushed to move on the supporting plate 1, and the driving member 11 drives the L-shaped plate 122 to pass through the moving groove 13 and slide on the inclined hole 124. Since the L-shaped plate 122 moves horizontally and the contact surface with the inclined hole 124 is an inclined surface, the L-shaped plate 122 drives the blocking block 10 to descend through the inclined hole 124 until the blocking block 10 leaves the pinhole groove 7, and the elastic member 121 is stretched, and the second clamping plate 3 moves to the top of the experimental groove 8, so that the experimental groove 8 is aligned with the pinhole groove 7 in the vertical direction, which is convenient for acupuncture.

[0038] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixture for a serial aging needle punch test, comprising a first clamping plate (2) and a second clamping plate (3), characterized in that: The first clamping plate (2) and the second clamping plate (3) fix the battery body (6) through a fixing assembly (4); a pinhole groove (7) for a pinhole test is provided on the first clamping plate (2) or the second clamping plate (3); and the first clamping plate (2) or the second clamping plate (3) further comprises a blocking block (10); the blocking block (10) comprises an aging test state and a pinhole test state; when the blocking block (10) is in the aging test state, the blocking block (10) passes through the pinhole groove (7) and contacts the battery body (6), and the outer wall of the blocking block (10) contacts and connects with the inner wall of the pinhole groove (7); when the blocking block (10) is in the pinhole test state, the blocking block (10) is separated from the pinhole groove (7).

2. The fixture for aging acupuncture serial experiment according to claim 1, characterized in that: A buffer component (5) is installed on the second clamping plate (3) or the first clamping plate (2), the other side of the buffer component (5) is in contact with and connected to the battery body (6), and the buffer component (5) and the pinhole groove (7) are located on both sides of the battery body (6).

3. The fixture for aging acupuncture serial experiment according to claim 1, characterized in that: An observation port (9) is provided on one side of the first clamping plate (2) and the second clamping plate (3), and the observation port (9) passes through the first clamping plate (2) and the second clamping plate (3).

4. The fixture for aging acupuncture serial experiment according to claim 1, characterized in that: The fixing assembly (4) comprises a screw rod (41) and a nut (42). Two ends of the screw rod (41) respectively pass through the first clamping plate (2) and the second clamping plate (3). The screw rod (41) extending out of the first clamping plate (2) and the second clamping plate (3) are respectively threadedly connected to a set of nuts (42).

5. The fixture for aging acupuncture serial experiment according to claim 4, characterized in that: A screw sleeve (43) is sleeved on the outside of the screw rod (41), and two ends of the screw sleeve (43) are respectively in contact with and connected to the inner walls of the first clamping plate (2) and the second clamping plate (3).

6. The fixture for aging acupuncture serial experiment according to claim 1, characterized in that: The invention also comprises a support plate (1), the pinhole slot (7) is close to the support plate (1), a driving member (11) is mounted on the support plate (1), the first clamping plate (2) / the second clamping plate (3) is fixedly connected to the output end of the driving member (11), a linkage assembly (12) is mounted on the output end of the driving member (11) and is used to change the state of the blocking block (10) along with the movement of the battery body (6), and the other end of the linkage assembly (12) is connected to the blocking block (10).

7. The fixture for aging acupuncture serial experiment according to claim 6, characterized in that: When the battery body (6) is located at the aging position, the linkage assembly (12) drives the blocking block (10) to be inserted into the pinhole slot (7); when the battery body (6) is located at the acupuncture position, the linkage assembly (12) drives the blocking block (10) to leave the pinhole slot (7).

8. A fixture for aging acupuncture serial experiment according to claim 6 or 7, characterized in that: The linkage assembly (12) comprises an elastic member (121) and a connecting plate (123), wherein the connecting plate (123) is mounted on the blocking block (10), and the two ends of the elastic member (121) are respectively fixedly connected to the connecting plate (123) and the support plate (1), and an inclined hole (124) is provided on the blocking block (10), and the end of the inclined hole (124) away from the support plate (1) is a first inclined surface that gradually moves away from the support plate (1) from the acupuncture station to the aging station, and an L-shaped plate (122) is mounted on the output end of the driving member (11), and the L-shaped plate (122) is slidably connected to the first inclined surface of the inclined hole (124), and the end of the L-shaped plate (122) close to the inclined hole (124) is a second inclined surface parallel to the first inclined surface.

9. The fixture for aging acupuncture serial experiment according to claim 8, characterized in that: When the battery body (6) is located at the acupuncture station, the elastic member (121) is stretched, and the side of the L-shaped plate (122) away from the support plate (1) is in contact and connection with the side of the first inclined surface close to the support plate (1); when the battery body (6) is located at the aging station, the elastic member (121) returns to its original shape, and the tip of the L-shaped plate (122) is in contact and connection with the end of the first inclined surface away from the acupuncture station.

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