Lithium ion soft package battery pole piece and seal thickness measuring device

Abstract

The utility model discloses a lithium ion soft package battery pole piece and seal thickness measuring device, which comprises a base platform, a detection platform, a positioning device and a measuring device, and is characterized in that the detection platform is mounted on the base platform; the positioning device comprises a positioning shaft; the positioning shaft is mounted on one side of the base platform; the measuring device comprises a sliding seat, a universal clamping seat and a micrometer, the sliding seat is arranged on the positioning shaft in a sliding fit mode, the universal clamping seat is installed on the sliding seat, and the universal clamping seat is suitable for clamping the micrometer; and the sliding seat is suitable for driving the micrometer to move for a fixed distance along the axial direction of the positioning shaft so as to measure the soft package battery placed on the detection platform. The flexible package battery pole piece and seal thickness measuring device can well measure the flexible package battery pole piece and seal thickness at a fixed position.

Description

Technical Field

[0001] The utility model relates to a device for measuring the thickness of a lithium ion soft-pack battery pole piece and a seal, and belongs to the technical field of battery measuring equipment. Background Art

[0002] Lithium-ion soft-pack batteries need to be rolled during the production process. Rolling is the process of compacting the coated pole roll to a specified thickness through two steel rods under a certain gap and pressure. If the thickness does not meet the standard, it will affect the battery capacity, internal resistance, etc., so a micrometer is needed to measure the thickness of the pole piece during the production process. After searching, it was found that the Chinese patent with announcement number CN215725822U discloses a thickness measuring device. The patent places the pole piece to be measured in the gap between the measuring part and the measuring piece. The tensile part fixes the measuring part in a suitable position through the first fixing part and the second fixing part, and applies an external force to the handle part to make the mounting assembly slide relative to the fixing assembly, thereby driving the measuring part to move, realizing the measurement of the pole piece thickness, reading the measurement data on the measuring piece, and obtaining the thickness of the pole piece. However, the position of each measurement in this patent is random, and it is difficult to improve the consistency of the thickness of the battery pole piece, which will affect the accuracy of the measurement results. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a lithium ion soft-pack battery pole piece and seal thickness measuring device, which can well measure the soft-pack battery pole piece and seal thickness at a fixed position.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a lithium ion soft pack battery electrode and seal thickness measuring device, comprising:

[0005] Base platform;

[0006] A detection platform, the detection platform is mounted on the base platform;

[0007] A positioning device, the positioning device comprising a positioning shaft, the positioning shaft being mounted on one side of the base platform;

[0008] A measuring device, the measuring device comprising a sliding seat, a universal clamp seat and a micrometer, the sliding seat is slidably mounted on the positioning shaft, the universal clamp seat is mounted on the sliding seat, and the universal clamp seat is suitable for clamping the micrometer;

[0009] The sliding seat is suitable for driving the micrometer to move a fixed distance along the axial direction of the positioning axis to measure the soft-pack battery placed on the detection platform.

[0010] Furthermore, in order to obtain an average value of the measurement data, the center distances between two adjacent positioning holes are the same.

[0011] Furthermore, in order to fix the positioning shaft, the positioning device also includes two installation components, and the installation components include a connecting plate, one end of the connecting plate is connected to the base platform, and the other end of the connecting plate is connected to the positioning shaft.

[0012] Furthermore, in order to facilitate adjustment of the distance between the positioning shaft and the base platform, a U-shaped groove is provided on the connecting plate, and the positioning shaft is installed in the U-shaped groove.

[0013] The mounting assembly further comprises a locking member, and the locking member is suitable for fixing the positioning shaft.

[0014] Furthermore, the ion soft-pack battery pole piece and seal thickness measuring device also includes a limiter, which is installed between the connecting plate and the positioning shaft, and the limiter is suitable for limiting the movement range of the sliding seat.

[0015] Furthermore, in order to reduce the supporting pressure and lower the weight of the measuring device, the detection platform is an acrylic plate.

[0016] Furthermore, a fixing groove is provided on the detection platform, and the fixing groove is suitable for fixing the soft-pack battery.

[0017] Furthermore, in order to better measure the value of the fixed position, a plurality of positioning holes are provided in the axial direction of the positioning shaft, and the center distances between two adjacent positioning holes are the same.

[0018] Furthermore, in order to prevent the sliding of the sliding seat from affecting the measurement result during measurement, the sliding seat is provided with a latch groove, the latch groove is adapted to communicate with the positioning hole when the sliding seat slides into place, the sliding seat is provided with a latch spring, the latch spring is installed in the latch groove, and the latch spring is adapted to eject the latch into the positioning hole to fix the sliding seat when the sliding seat slides into place.

[0019] Furthermore, a scale is provided on the detection platform.

[0020] After adopting the above technical solution, the utility model has the following beneficial effects:

[0021] 1. In the present invention, the soft-pack battery pole piece is placed on the detection platform so that the soft-pack battery pole piece is aligned with one side of the detection platform, and the micrometer is driven by the sliding seat to move to a suitable position along the axial direction of the positioning axis, and the micrometer is used for measurement. After the sliding seat slides into place, the latch spring bounces the latch into the positioning hole to fix the sliding seat to prevent sliding from affecting the measurement result. At this time, the measurement data of the micrometer is read to obtain the thickness value of the lithium-ion soft-pack battery pole piece;

[0022] When it is necessary to measure the seal thickness of the soft-pack battery, place the soft-pack battery in the fixed slot on the detection platform, drive the micrometer to move to the appropriate position along the axial direction of the positioning axis through the sliding seat, and drive the micrometer to rotate by rotating the universal clamp seat so that the micrometer and the seal layer of the soft-pack battery remain perpendicular to avoid an angle between the micrometer and the seal layer, thereby preventing measurement errors and affecting the measurement results.

[0023] 2. In the present invention, the center point distances between two adjacent positioning holes on the positioning shaft are equal. By ensuring the consistency of the distances between the positioning holes, the error in the measurement process can be reduced and the reliability of the average measurement data can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of a lithium-ion soft-pack battery electrode and seal thickness measuring device of the utility model;

[0025] Figure 2 This is a front view of a lithium-ion soft-pack battery electrode and seal thickness measuring device of the utility model;

[0026] Figure 3 It is a top view of a lithium-ion soft-pack battery electrode and seal thickness measuring device of the utility model;

[0027] Figure 4 It is a left view of a lithium-ion soft-pack battery electrode and seal thickness measuring device of the utility model;

[0028] Figure 5 It is a three-dimensional diagram of the second embodiment of the present utility model. DETAILED DESCRIPTION

[0029] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0030] Embodiment 1: Figure 1-5 , a lithium-ion soft-pack battery electrode and seal thickness measuring device, comprising:

[0031] Base platform 1;

[0032] Detection platform 2, the detection platform 2 is installed on the base platform 1;

[0033] A positioning device, the positioning device comprises a positioning shaft 31, and the positioning shaft 31 is installed on one side of the base platform 1;

[0034] The measuring device includes a sliding seat 41, a universal clamp seat 42 and a micrometer 43. The sliding seat 41 is slidably fitted on the positioning shaft 31, and the universal clamp seat 42 is installed on the sliding seat 41. The universal clamp seat 42 is suitable for clamping the micrometer 43;

[0035] The sliding seat 41 is suitable for driving the micrometer 43 to move a fixed distance along the axial direction of the positioning shaft 31 to measure the soft-pack battery placed on the detection platform 2.

[0036] In this embodiment, the universal clamp seat 42 is a cross universal fixing clamp, and the cross universal fixing clamp can rotate up, down, left, and right.

[0037] Specifically, Figure 4 As shown, the positioning device further includes two mounting components, and the mounting components include a connecting plate 32 , one end of the connecting plate 32 is connected to the base platform 1 , and the other end of the connecting plate 32 is connected to the positioning shaft 31 .

[0038] Specifically, Figure 4 As shown, a U-shaped groove 321 is provided on the connecting plate 32 , and the positioning shaft 31 is installed in the U-shaped groove 321 .

[0039] The mounting assembly further includes a locking member 33 , which is suitable for fixing the positioning shaft 31 .

[0040] Specifically, Figure 4 As shown, a limiting member 5 is also included. The limiting member 5 is installed between the connecting plate 32 and the positioning shaft 31 . The limiting member 5 is suitable for limiting the movement range of the sliding seat 41 .

[0041] In this embodiment, the locking member 33 is a fastening nut. When the positioning shaft 31 is installed on the connecting plate 32 , the fastening nut is screwed on to fix the positioning shaft 31 on the connecting plate in cooperation with the limiting member 5 .

[0042] Specifically, the detection platform 2 is an acrylic plate, which can reduce the supporting pressure and lower the weight of the entire device.

[0043] Specifically, Figure 1 As shown, a fixing groove 21 is provided on the detection platform 2, and the fixing groove 21 is suitable for fixing the soft-pack battery.

[0044] A plurality of positioning holes 311 are provided in the axial direction of the positioning shaft 31 , and the center distances between two adjacent positioning holes 311 are the same.

[0045] Specifically, Figure 1-3 As shown, the sliding seat 41 is provided with a latch groove, which is suitable for communicating with the positioning hole 311 when the sliding seat 41 slides into place. The sliding seat 41 is provided with a latch spring 411, which is installed in the latch groove. The latch spring 411 is suitable for springing the latch into the positioning hole 311 to fix the sliding seat 41 when the sliding seat 41 slides into place.

[0046] In this embodiment, the soft-pack battery electrode piece is placed on the detection platform 2 so that the soft-pack battery electrode piece is aligned with one side of the detection platform 2, and the micrometer 43 is driven by the sliding seat 41 to move to a suitable position along the axial direction of the positioning shaft 31, and the micrometer 43 is used for measurement. After the sliding seat 41 slides into place, the latch spring 411 bounces the latch into the positioning hole 311 to fix the sliding seat 41 to prevent sliding from affecting the measurement result. At this time, the measurement data of the micrometer 43 is read to obtain the thickness value of the lithium-ion soft-pack battery electrode piece;

[0047] When it is necessary to measure the seal thickness of the soft-pack battery, the soft-pack battery is placed in the fixed groove 21 on the detection platform 2, and the micrometer 43 is driven by the sliding seat 41 to move to a suitable position along the axial direction of the positioning axis 31. The micrometer 43 is driven to rotate by rotating the universal clamp seat 42 so that the micrometer 43 and the seal layer of the soft-pack battery are kept perpendicular to avoid an angle between the micrometer 43 and the seal layer, thereby preventing measurement errors from affecting the measurement results.

[0048] Embodiment 2: The structure of a lithium-ion soft-pack battery electrode and seal thickness measuring device of this embodiment is basically the same as that of the embodiment 1, except that:

[0049] like Figure 5 As shown, a scale 6 is also provided on the detection platform 2 .

[0050] In this embodiment, the positioning axis 31 may also be an optical axis, and the sliding seat 41 slides on the positioning axis. The sliding seat 41 is slid to the position corresponding to the scale of the scale 6 to measure the fixed position of the pole piece.

[0051] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium-ion soft-pack battery electrode and seal thickness measuring device, characterized in that: include: Base platform (1); A detection platform (2), the detection platform (2) being mounted on the base platform (1); A positioning device, the positioning device comprising a positioning shaft (31), the positioning shaft (31) being mounted on one side of the base platform (1); A measuring device, the measuring device comprising a sliding seat (41), a universal clamp seat (42) and a micrometer (43), the sliding seat (41) being slidably mounted on the positioning shaft (31), the universal clamp seat (42) being mounted on the sliding seat (41), and the universal clamp seat (42) being suitable for clamping the micrometer (43); The sliding seat (41) is suitable for driving the micrometer (43) to move a fixed distance along the axial direction of the positioning axis (31) to measure the soft-pack battery placed on the detection platform (2).

2. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 1, characterized in that: The positioning device further comprises two mounting components, wherein the mounting components comprise a connecting plate (32), one end of the connecting plate (32) being connected to the base platform (1), and the other end of the connecting plate (32) being connected to the positioning shaft (31).

3. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 2, characterized in that: The connecting plate (32) is provided with a U-shaped groove (321), and the positioning shaft (31) is installed in the U-shaped groove (321); The mounting assembly further comprises a locking member (33), wherein the locking member (33) is suitable for fixing the positioning shaft (31).

4. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 3, characterized in that: It also comprises a limiting member (5), wherein the limiting member (5) is installed between the connecting plate (32) and the positioning shaft (31), and the limiting member (5) is suitable for limiting the movement range of the sliding seat (41).

5. The device for measuring the thickness of a lithium-ion soft-pack battery electrode and seal according to claim 1, characterized in that: The detection platform (2) is an acrylic plate.

6. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 1, characterized in that: The detection platform (2) is provided with a fixing groove (21), and the fixing groove (21) is suitable for fixing a soft-pack battery.

7. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 1, characterized in that: A plurality of positioning holes (311) are provided in the axial direction of the positioning shaft (31), and the center distances between two adjacent positioning holes (311) are the same.

8. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 7, characterized in that: The sliding seat (41) is provided with a latch groove, the latch groove being adapted to communicate with the positioning hole (311) when the sliding seat (41) slides into place, the sliding seat (41) is provided with a latch spring (411), the latch spring (411) is installed in the latch groove, and the latch spring (411) is adapted to spring a latch into the positioning hole (311) to fix the sliding seat (41) when the sliding seat (41) slides into place.

9. A lithium-ion soft-pack battery electrode and seal thickness measuring device according to claim 1, characterized in that: The detection platform (2) is also provided with a scale (6).

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