Cylindrical cell test fixture

Abstract

The utility model discloses a cylindrical cell test fixture, which comprises a first clamping block and a second clamping block, a battery is arranged on the opposite sides of the first clamping block and the second clamping block, a contact is arranged at the top end of the battery, a supporting plate mechanism is arranged at the bottom end of the battery, a mounting plate is arranged on the back surface of the second clamping block, and a clamping plate is arranged on the mounting plate. A moving box is arranged at the top of the contact; the supporting plate mechanism comprises a moving supporting plate; by utilizing the design of the battery, the mounting plate and the supporting plate mechanism, the height of the movable supporting plate can be adjusted in a plurality of ways by pulling the pull rod and driving the clamping block to be far away from the adjusting groove, so that the movable supporting plate can better meet the requirements of batteries with different heights; the clamping blocks are driven to be inserted into the adjusting grooves in the corresponding positions, the position of the movable supporting plate is fixed, and the top end of the movable supporting plate is stably attached to the bottom end of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core testing devices, in particular to a cylindrical battery core testing fixture. Background Art

[0002] With the gradual development of new energy, its power source - battery, plays a key role. When testing new energy cylindrical batteries, it is necessary to use a fixture to fix the cylindrical battery cells for testing. However, the existing test fixture has a fixed height for placing the battery tray, which cannot be adjusted, so it is not convenient to test cylindrical batteries of different heights. Utility Model Content

[0003] The purpose of the utility model is to provide a cylindrical battery cell testing fixture to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cylindrical battery cell testing fixture, comprising a first clamp block and a second clamp block, a battery for testing is arranged on the opposite side of the first clamp block and the second clamp block, a contact is arranged on the top of the battery, a support plate mechanism for supporting the battery is arranged on the bottom of the battery, a mounting plate for installing the second clamp block and the support plate mechanism is arranged on the back side of the second clamp block, a movable box for driving the contact to move is arranged on the top of the contact, and the support plate mechanism includes a movable support plate.

[0005] Preferably, a quick push rod for driving the moving box is provided at the top of the moving box, the top of the moving box is fixedly connected to the moving end of the quick push rod, the back of the quick push rod is fixedly connected to the front of the mounting plate, the back of the second clamping block is fixedly connected to the front of the mounting plate, and the first clamping block is hinged to the second clamping block.

[0006] Preferably, a first movable groove is opened at the top of the front side of the mounting plate, and a T-shaped block is fixedly connected to the back side of the movable box, and the T-shaped block is interlaced and connected with the first movable groove.

[0007] Preferably, a block for limiting the movement of the movable pallet is provided on the back side of the movable pallet, and an adjustment slot for adjusting the height of the movable pallet is provided on the back side of the mounting plate, and the block is interlaced and connected with the adjustment slot.

[0008] Preferably, a pull rod is sleeved inside the block, and a pushing spring is sleeved on the outer wall of one end of the pull rod. A cavity for installing the pushing spring is opened inside the movable support plate, and a circular hole is opened on the back of the inner wall of the cavity, and the other end of the pull rod is inserted and connected with the circular hole.

[0009] Preferably, one end of the pull rod is fixedly connected with a baffle for limiting the movement of the pushing spring.

[0010] Preferably, a limiting rod for limiting the rotation of the movable support plate is fixedly connected to the back side of the movable support plate, and a through-slot for inserting the limiting rod is provided on the front side of the mounting plate.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model utilizes the design of the battery, the mounting plate and the support plate mechanism, and can perform various adjustments to the height of the movable support plate by pulling the pull rod to drive the card block away from the adjustment slot, so that the movable support plate can better meet the needs of batteries of different heights. When the movable support plate is adjusted to a suitable position, the pull rod is released, and the card block is driven to insert into the adjustment slot at the corresponding position under the action of the rebound force of the pushing spring, so as to fix the position of the movable support plate, so that the top end of the movable support plate is stably fitted with the bottom end of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a side structural schematic diagram of the utility model.

[0015] Figure 3 It is a rear view structural schematic diagram of the utility model.

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the support plate mechanism of the utility model.

[0017] In the figure: 1. first clamping block; 2. second clamping block; 3. battery; 4. contact; 5. support plate mechanism; 51. moving support plate; 52. pull rod; 53. clamping block; 54. pushing spring; 55. baffle; 56. limiting rod; 6. moving box; 7. quick push rod; 8. T-shaped block; 9. mounting plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0019] The utility model provides Figure 1-4A cylindrical battery cell testing fixture is shown, comprising a first clamp 1 and a second clamp 2, a battery 3 for testing is arranged on the opposite side of the first clamp 1 and the second clamp 2, a contact 4 is arranged at the top of the battery 3, a support plate mechanism 5 for supporting the battery 3 is arranged at the bottom of the battery 3, a mounting plate 9 for installing the second clamp 2 and the support plate mechanism 5 is arranged on the back of the second clamp 2, a moving box 6 for driving the contact 4 to move is arranged on the top of the contact 4, and the support plate mechanism 5 includes a moving support plate 51.

[0020] Specifically, a quick push rod 7 for driving the mobile box 6 is provided at the top of the mobile box 6, the top of the mobile box 6 is fixedly connected to the moving end of the quick push rod 7, the back of the quick push rod 7 is fixedly connected to the front of the mounting plate 9, the back of the second clamping block 2 is fixedly connected to the front of the mounting plate 9, the first clamping block 1 is hinged to the second clamping block 2, a first moving groove is opened at the top of the front of the mounting plate 9, and a T-shaped block 8 is fixedly connected to the back of the mobile box 6, and the T-shaped block 8 is interlaced with the first moving groove.

[0021] Furthermore, the battery 3 is an existing cylindrical battery cell, the positive and negative electrodes of which are both at the top, and a semicircular groove is provided on the opposite side of the first clamp block 1 and the second clamp block 2 for clamping the battery 3, so that the first clamp block 1 and the second clamp block 2 can stably clamp the battery 3, and a hinge is provided on one side of the first clamp block 1 and the second clamp block 2, so that the first clamp block 1 and the second clamp block 2 are hinged, and the first clamp block 1 can rotate, and the first clamp block 1 and the second clamp block 2 are made of bakelite, which has the characteristics of non-absorbent, non-conductive, high temperature resistant and high strength, so that the internal resistance of the first clamp block 1 and the second clamp block 2 can meet the use requirements, and the battery 3 can be pushed quickly. The action principle of rod 7 is similar to that of existing quick clamps. By moving the handle up and down, the output shaft of the quick push rod 7 is driven to move up and down in the vertical direction. The output shaft of the quick push rod 7 is fixedly connected to the moving box 6 through a nut. The first moving groove is a vertical strip groove. The T-shaped block 8 is T-shaped. One end of the T-shaped block 8 passes through the first moving groove and is fixedly connected to the back of the moving box 6. Therefore, when the output end of the quick push rod 7 drives the moving box 6 to move, it can only move in a straight line in the vertical direction under the restriction of the T-shaped block 8. The moving box 6 drives the contact 4 set at the bottom to squeeze and fit the top of the first clamping block 1.

[0022] Specifically, a block 53 for limiting the movement of the movable pallet 51 is provided on the back side of the movable pallet 51, an adjusting groove for adjusting the height of the movable pallet 51 is provided on the back side of the mounting plate 9, the block 53 is interlaced with the adjusting groove, a pull rod 52 is sleeved inside the block 53, and a pushing spring 54 is sleeved on the outer wall of one end of the pull rod 52, a cavity for installing the pushing spring 54 is provided inside the movable pallet 51, a circular hole is provided on the back side of the inner wall of the cavity, the other end of the pull rod 52 is interlaced with the circular hole, a baffle 55 for limiting the movement of the pushing spring 54 is fixedly connected to one end of the pull rod 52, a limiting rod 56 for limiting the rotation of the movable pallet 51 is fixedly connected to the back side of the movable pallet 51, and a through-slot for inserting the limiting rod 56 is provided on the front side of the mounting plate 9.

[0023] Furthermore, the adjustment slot is composed of a plurality of transverse slots and a vertical slot. The transverse slot is used to engage the card block 53 to adjust the different heights of the movable support plate 51. The vertical slot is used to move the pull rod 52. The pushing spring 54 and the baffle 55 are both arranged in the cavity. The pushing spring 54 is always in a compressed state in the cavity. The size of the pushing spring 54 is larger than the diameter of the circular hole. The size of the pull rod 52 is 0.98 times the diameter of the circular hole. The size of the baffle 55 is 1.2 times the size of the pushing spring 54. Two limiting rods 56 are symmetrically arranged and fixedly connected to the back side of the movable support plate 51 by gluing. The through slot is a vertical slot. The limiting rod 56 is interlaced and connected with the through slot, so that the movable support plate 5 When adjusting the height, the movable support plate 51 is kept from rotating and can only be moved vertically in a horizontal state. The block 53 is fixedly sleeved on the outer wall of the pull rod 52. When the movable support plate 51 is adjusted, by pulling the pull rod 52, the pull rod 52 drives the baffle plate 55 and the block 53, respectively, so that the pushing spring 54 is further compressed and the block 53 is separated from the horizontal groove of the adjustment groove. At this time, by moving the pull rod 52 up and down, the height of the movable support plate 51 is driven to move. When the top end of the movable support plate 51 is in contact with the bottom end of the battery 3, the block 53 is inserted into the horizontal groove at the corresponding position, and the height of the movable support plate 51 can be fixed to meet the placement requirements of different battery 3 heights.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 cylindrical battery cell test fixture, comprising a first clamp (1) and a second clamp (2), wherein a battery (3) for testing is arranged on one side opposite to the first clamp (1) and the second clamp (2), and a contact (4) is arranged on the top of the battery (3), characterized in that: The bottom end of the battery (3) is provided with a support plate mechanism (5) for supporting the battery (3); the back of the second clamping block (2) is provided with a mounting plate (9) for mounting the second clamping block (2) and the support plate mechanism (5); the top of the contact (4) is provided with a moving box (6) for driving the contact (4) to move; and the support plate mechanism (5) comprises a moving support plate (51).

2. A cylindrical battery cell testing fixture according to claim 1, characterized in that: A quick push rod (7) for driving the moving box (6) is arranged at the top end of the moving box (6); the top end of the moving box (6) is fixedly connected to the moving end of the quick push rod (7); the back side of the quick push rod (7) is fixedly connected to the front side of the mounting plate (9); the back side of the second clamping block (2) is fixedly connected to the front side of the mounting plate (9); and the first clamping block (1) is hinged to the second clamping block (2).

3. A cylindrical battery cell testing fixture according to claim 1, characterized in that: A first moving groove is provided at the top of the front side of the mounting plate (9), and a T-shaped block (8) is fixedly connected to the back side of the moving box (6), wherein the T-shaped block (8) is interlaced and connected with the first moving groove.

4. A cylindrical battery cell testing fixture according to claim 1, characterized in that: A clamping block (53) for limiting the movement of the movable support plate (51) is provided on the back of the movable support plate (51), and an adjusting slot for adjusting the height of the movable support plate (51) is provided on the back of the mounting plate (9), and the clamping block (53) is interlaced and connected with the adjusting slot.

5. A cylindrical battery cell testing fixture according to claim 4, characterized in that: A pull rod (52) is sleeved inside the clamping block (53), and a pushing spring (54) is sleeved on the outer wall of one end of the pull rod (52). A cavity for installing the pushing spring (54) is provided inside the movable support plate (51), and a circular hole is provided on the back of the inner wall of the cavity. The other end of the pull rod (52) is inserted and connected with the circular hole.

6. A cylindrical battery cell testing fixture according to claim 5, characterized in that: One end of the pull rod (52) is fixedly connected to a baffle (55) for limiting the movement of the pushing spring (54).

7. A cylindrical battery cell testing fixture according to claim 1, characterized in that: A limiting rod (56) for limiting the rotation of the movable support plate (51) is fixedly connected to the back side of the movable support plate (51), and a slot for inserting the limiting rod (56) is provided on the front side of the mounting plate (9).

Images