A lithium battery test fixture

Abstract

The utility model relates to lithium cell test technical field, and disclose a kind of lithium cell test fixture, including base, the base is opened in slide groove, the inside of slide groove is provided with two light pole, two the light pole is slidably provided with slide seat, the slide seat is provided with rotating seat, rotating seat is provided with a vertical plate, the one side of vertical plate is outwardly extended and is provided with arc plate, the arc plate is semicircular cylinder structure, and the opening of this semicircular cylinder structure is towards the axis direction of light pole, the other side of vertical plate is provided with slide bar barrel, the inside of slide bar barrel is slidably provided with slide bar, the front end of slide bar passes through vertical plate and is clamped with arc plate to test battery, test battery can be thrown at set angle, test battery does not occur in air overturn, guarantee the impact angle of each test battery is same, it is convenient to carry out fixed angle impact test.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery testing technology, specifically a lithium battery testing fixture. Background Technology

[0002] With the development of technology, lithium batteries are gradually being used in people's lives. As a commonly used energy material in the new energy field, lithium batteries have very active chemical properties, which means that safety performance tests must be carried out during the production and use of lithium batteries.

[0003] According to the "Lithium Battery Drop Test Equipment" disclosed in Chinese Patent Publication No. CN211291929U, it includes a lithium battery transport frame, a drop test platform located near the lithium battery transport frame, and a test housing for supporting the drop test platform. The test housing contains a control circuit board, a data storage device, a wireless network communication module, a heat sink, an alarm, a signal display screen, and control buttons. Heat dissipation windows are provided on both sides of the test housing. The drop test platform includes a fixed platform located on the upper part of the test housing and a height adjustment frame mounted on the fixed platform. A lithium battery support platform for supporting the lithium battery and whose height can be adjusted is provided on the height adjustment frame. A first drive motor is provided in the height adjustment frame to drive the lithium battery support platform to move up and down on the height adjustment frame. In practical applications, the drop test platform can effectively complete the drop test of lithium batteries, and the equipment has a reasonable structural design and high reliability.

[0004] The device performs drop tests by releasing a test battery from a height, causing it to fall onto an impact plate. However, because the test battery is in free fall and flips in the air, the impact angle of each test battery is different, making it impossible to perform a drop test at a fixed angle. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a lithium battery testing fixture that can throw the test battery at a set angle, ensuring that the test battery will not flip in the air and guaranteeing that the impact angle of the test battery is the same for each test, thus facilitating fixed-angle impact testing.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A lithium battery testing fixture includes a base with a sliding groove. Two guide rods are arranged inside the sliding groove, and slide blocks are slidably mounted on the two guide rods. A rotating seat is mounted on the slide block, and a vertical plate is mounted on the rotating seat. An arc-shaped plate extends outward from one side of the vertical plate. The arc-shaped plate has a semi-cylindrical structure, with its opening facing the axis of the guide rod. A sliding rod cylinder is located on the other side of the vertical plate, and a sliding rod is slidably mounted inside the sliding rod cylinder. The front end of the sliding rod passes through the vertical plate and, together with the arc-shaped plate, clamps the test battery. A stop is located in the middle of the sliding rod, and a spring is arranged between the stop and the sliding rod cylinder. An armature is located at the rear end of the sliding rod, and an electromagnet is mounted on the sliding rod cylinder below the armature.

[0008] Preferably, the two terminals of the electromagnet are each connected to a brush via a wire, both brushes are fixedly connected to the slide, and two electric strips are arranged on the moving trajectory of the two brushes, with the two electric strips respectively connected to the two poles of the power supply.

[0009] Preferably, the distance from the slide block to the end of the slide groove is less than the distance from the brush to the end of the strip.

[0010] Preferably, the base is provided with an impact plate at its end.

[0011] Preferably, a baffle is provided on the outer side of the impact plate.

[0012] Preferably, the slide is fixedly connected to one end of the pull rope, and the other end of the pull rope passes through the end of the base 1.

[0013] Preferably, one end of the pull rope that passes through the base is connected to a counterweight.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] In use, the test battery is placed on the arc plate, with its end resting against the upright plate. The front end of the slide rod and the arc plate together fix the test battery in place. By rotating the rotating base, the test battery is rotated, the test angle is adjusted, and the slide rod is pushed to accelerate the test battery. Once the speed is reached, the electromagnet is energized, causing the end of the slide rod to retract to the inside of the upright plate. At this point, the end of the slide rod separates from the test battery, and the slide rod impacts the end of the slide groove, which can throw the test battery at a set angle. The test battery will not flip in the air, ensuring that the impact angle of the test battery is the same each time, which is convenient for fixed-angle impact tests. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the test battery of this utility model before it is ejected;

[0018] Figure 3 This is a schematic diagram of the structure of the test battery after it is ejected according to this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention in an embodiment.

[0020] The components are: 1. Base; 2. Slide groove; 3. Smooth rod; 4. Slide seat; 5. Rotary seat; 6. Vertical plate; 7. Arc plate; 8. Slide rod cylinder; 9. Slide rod; 10. Stop block; 11. Spring; 12. Armature; 13. Electromagnet; 14. Wire; 15. Brush; 16. Electric strip; 17. Power supply; 18. Impact plate; 19. Enclosure plate; 20. Pull rope; 21. Counterweight. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides the following technical solution:

[0023] Combination Figures 1 to 3 As shown in the figure, a lithium battery testing fixture disclosed in this embodiment includes a base 1, on which a sliding groove 2 is provided. Two guide rods 3 are arranged inside the sliding groove 2. A slide block 4 is slidably arranged on the two guide rods 3. A rotating seat 5 is arranged on the slide block 4. A vertical plate 6 is arranged on the rotating seat 5. An arc plate 7 is arranged extending outward from one side of the vertical plate 6. The arc plate 7 is a semi-cylindrical structure, and the opening of the semi-cylindrical structure faces the axis of the guide rod 3. A sliding rod cylinder 8 is arranged on the other side of the vertical plate 6. A sliding rod 9 is slidably arranged inside the sliding rod cylinder 8. The front end of the sliding rod 9 passes through the vertical plate 6 and clamps the test battery together with the arc plate 7. A stop block 10 is arranged in the middle of the sliding rod 9. A spring 11 is arranged between the stop block 10 and the sliding rod cylinder 8. An armature 12 is arranged at the rear end of the sliding rod 9. An electromagnet 13 is arranged on the sliding rod cylinder 8 below the armature 12.

[0024] In use, the test battery is placed on the arc plate 7, with its end resting against the upright plate 6. The spring 11 inside the slide rod cylinder 8 pushes the stop block 10, keeping the end of the slide rod 9 protruding from the upright plate 6. The front end of the slide rod 9 and the arc plate 7 together fix the test battery in place. By rotating the rotating base 5, the test battery is rotated, adjusting the test angle. After adjustment, the bolts on the rotating base 5 are tightened so that the ends of the bolts rest against the slide block 4, fixing the rotating base 5 and the slide block 4, thereby fixing the angle of the test battery. The slide rod is then pushed... The base 4 and slide 4 slide within the slide groove 2 via the light rod 3, accelerating the test battery. Once the speed is reached, the electromagnet 13 is energized, attracting the armature 12. The armature 12 drives the slide rod 9 to slide into the slide rod cylinder 8, causing the end of the slide rod 9 to retract to the inside of the upright plate 6. At this time, the end of the slide rod 9 separates from the test battery, and the slide 4 impacts the end of the slide groove 2, which can throw the test battery at a set angle. The test battery will not flip in the air, ensuring that the impact angle of the test battery is the same each time, which is convenient for fixed-angle impact tests.

[0025] Specifically, in combination Figure 1 As shown, the two terminals of the electromagnet 13 are respectively connected to a brush 15 through a wire 14. Both brushes 15 are fixedly connected to the slide block 4. Two electric strips 16 are arranged on the moving trajectory of the two brushes 15. The two electric strips 16 are respectively connected to the two poles of the power supply 17.

[0026] When the slide block 4 is pushed to accelerate the test battery, the two brushes 15 move with the slide block 4. After the brushes 15 come into contact with the electric strip 16, the wire 14 connects the power supply 17 to the electromagnet 13, so as to provide power to the electromagnet 13 during the acceleration of the test battery, thereby releasing the fixation of the test battery.

[0027] Specifically, in combination Figure 1 As shown, the distance from the slide block 4 to the end of the slide groove 2 is less than the distance from the brush 15 to the end of the electric strip 16.

[0028] Before the slide block 4 impacts the end of the slide groove 2, the brush 15 contacts the electric strip 16 to supply power to the electromagnet 13, ensuring that the test battery can be released before it is thrown out.

[0029] Specifically, in combination Figure 4 As shown, an impact plate 18 is provided at the end of the base 1.

[0030] A fixed-angle impact test is performed by throwing a test battery at a fixed angle and striking it against a vertically set impact plate 18.

[0031] Specifically, in combination Figure 4 As shown, a baffle plate 19 is provided on the outer side of the impact plate 18.

[0032] The test battery is prevented from flying out after an impact by the set-up barrier 19.

[0033] Specifically, in combination Figure 4 As shown, the slide block 4 is fixedly connected to one end of the pull rope 20, and the other end of the pull rope 20 passes through the end of the base 1.

[0034] By pulling the rope 20, the slide block 4 is moved, thus accelerating the test battery.

[0035] Specifically, in combination Figure 4 As shown, the pull rope 20 passes through one end of the base 1 and is connected to a counterweight 21.

[0036] The counterweight 21 falls, pulling the rope 20 and causing the slide 4 to move, thus accelerating the test battery.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery testing fixture, comprising a base (1), characterized in that: The base (1) has a groove (2) with two light rods (3) inside. A slide seat (4) is slidably mounted on the two light rods (3). A rotating seat (5) is mounted on the slide seat (4). A vertical plate (6) is mounted on the rotating seat (5). An arc plate (7) extends outward from one side of the vertical plate (6). The arc plate (7) is a semi-cylindrical structure, and the opening of the semi-cylindrical structure faces the axis of the light rod (3). The other side of the vertical plate (6) A sliding cylinder (8) is provided, and a sliding rod (9) is slidably arranged inside the sliding cylinder (8). The front end of the sliding rod (9) passes through the vertical plate (6) and clamps the test battery together with the arc plate (7). A stop block (10) is provided in the middle of the sliding rod (9). A spring (11) is provided between the stop block (10) and the sliding cylinder (8). An armature (12) is provided at the rear end of the sliding rod (9). An electromagnet (13) is provided on the sliding cylinder (8) below the armature (12).

2. The lithium battery testing fixture according to claim 1, characterized in that: The two terminals of the electromagnet (13) are connected to a brush (15) via a wire (14). Both brushes (15) are fixedly connected to the slide (4). Two electric strips (16) are set on the moving trajectory of the two brushes (15). The two electric strips (16) are respectively connected to the two poles of the power supply (17).

3. A lithium battery testing fixture according to claim 2, characterized in that: The distance from the slide block (4) to the end of the slide groove (2) is less than the distance from the brush (15) to the end of the electric strip (16).

4. A lithium battery testing fixture according to claim 1, characterized in that: An impact plate (18) is provided at the end of the base (1).

5. A lithium battery testing fixture according to claim 4, characterized in that: A baffle plate (19) is provided on the outside of the impact plate (18).

6. A lithium battery testing fixture according to claim 5, characterized in that: The slide (4) is fixedly connected to one end of the pull rope (20), and the other end of the pull rope (20) passes through the end of the base (1).

7. A lithium battery testing fixture according to claim 6, characterized in that: The pull rope (20) passes through one end of the base (1) and is connected to a counterweight (21).

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