Detection box convenient for limiting lithium ion battery

Abstract

The utility model discloses a detection box convenient to limit a lithium ion battery, and relates to the technical field of lithium ion battery detection, the detection box comprises a box body and a detection box, the top of the box body is movably connected with a box cover through a rotating shaft, the bottom of the box cover is fixedly connected with a vibration motor, the box body is internally provided with a battery detector, and the battery detector is fixedly connected with the detection box. An electrode contact piece is mounted at the top of the box cover, the output end of the electrode contact piece is electrically connected with the battery detector, and the top of the box cover is in threaded connection with a threaded rod through a mounting plate. According to the detection box capable of conveniently limiting the lithium ion battery, the battery is placed in the detection box, then a limiting belt is pulled to move, after a connecting block on one side of the limiting belt enters a fixing block, a clamping block is clamped with the connecting block, fixing of the limiting belt is completed, and at the moment, the limiting belt can be fixed to the top of the detection box; and the battery in the detection box is limited, so that the battery in the detection box can be conveniently limited through the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion battery detection, in particular to a detection box which is convenient for limiting the position of lithium ion batteries. Background Art

[0002] Lithium-ion batteries are a type of secondary battery that relies primarily on the movement of lithium ions between the positive and negative electrodes to work. After lithium-ion batteries are produced, they need to be tested in a test box to ensure that the produced lithium-ion batteries meet the standards for use.

[0003] For example, application number CN201621159881.2 is a stable shell structure for lithium-ion battery testing. The vibration detection method can obtain more realistic test results. The vibration detection can expose more defects of the battery, which is convenient for designers to improve. The fixing belt in the detection fixing box can be fixed on the button nail, so that the test battery will not shift during vibration, thereby improving stability.

[0004] When limiting the battery, the above patent moves the fixing belt on the detection fixing box by pulling it, and fixes the button nail on one side of the fixing belt to the other side of the detection fixing box, and limits the battery in the box by the fixing belt across the top of the detection fixing box. However, fixing the fixing belt by the button nail is not firm. When the detection box is subjected to vibration detection, the button nail will be separated from the detection box, which is not convenient for limiting the lithium-ion battery. Utility Model Content

[0005] The utility model aims to provide a detection box which is convenient for limiting the position of lithium-ion batteries, so as to solve the problem that the existing detection box mentioned in the background technology is not convenient for limiting the position of lithium-ion batteries.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection box for lithium-ion batteries that is convenient for limiting the position, comprising: a box body and a detection box, the top of the box body is movably connected to a box cover through a rotating shaft, the bottom of the box cover is fixedly connected to a vibration motor, a battery tester is installed inside the box body, an electrode contact piece is installed on the top of the box cover, the output end of the electrode contact piece is electrically connected to the battery tester, the top of the box cover is threadedly connected to a threaded rod through a mounting plate, one end of the threaded rod is movably connected to the detection box through a bearing, a slide groove matching the slider at the bottom of the detection box is opened in the middle of the upper end surface of the box cover, and the detection box is slidably connected to the slide groove,

[0007] A shell is welded and fixed to the outside of the detection box, and a connecting shaft is movably connected to the inside of the shell through a bearing, a coil spring is fixedly connected to one side of the connecting shaft, a limiting band is wound around the side of the connecting shaft away from the coil spring, one side of the coil spring is fixedly connected to the shell, a connecting block is fixedly connected to the free end of the limiting band, the connecting block is movably inserted in a fixed block, sliding grooves are provided on both sides of the connecting block, and a card block that is engaged with the outer wall of the connecting block is slidably installed in the sliding groove, and a first spring is also provided on the side of the card block away from the connecting block.

[0008] Preferably, a movable groove for installing the rack block is opened at the bottom of the fixed block, and the rack block is vertically slidably connected to the movable groove, gears are meshedly connected on both sides of the rack block, and a lever is fixedly connected to the outer side of the gear.

[0009] Preferably, a movable groove matching the lever is provided inside the clamping block, and the lever is movably connected to the movable groove, both sides of the gear are movably connected to the fixed block through a rotating shaft, and one side of the fixed block is fixedly connected to the box body.

[0010] Preferably, one end of the first spring is fixedly connected to the fixing block, a slot matching the clamping block is provided inside the connecting block, and the clamping block is clamped and connected to the slot.

[0011] Preferably, one side of the box cover is movably connected to a toggle rod via a rotating shaft, a protrusion is fixedly connected to the bottom of the box cover, one side of the toggle rod is fixedly connected to a connecting rope, and a roller and a pulley are wound around the outer side of the connecting rope.

[0012] Preferably, both sides of the roller are movably connected to the box cover via a rotating shaft, both sides of the pulley are movably connected to the box cover and the protrusion via a rotating shaft, and one end of the connecting rope is fixedly connected to the limiting block.

[0013] Preferably, a limiting groove matching the limiting block is opened on the inner side of the box body, and the limiting block is engaged with the limiting groove, and a second spring is fixedly connected to one side of the limiting block.

[0014] Preferably, one end of the second spring is fixedly connected to the protrusion, and a magnet is fixedly connected to a side of the box body away from the toggle rod.

[0015] Compared with the prior art, the detection box for lithium-ion batteries that is easy to limit has the following beneficial effects: by placing the battery in the detection box and then pulling the limiting belt to move it, when the connecting block on one side of the limiting belt enters the interior of the fixing block, the clamping block will engage with the connecting block to complete the fixation of the limiting belt. At this time, the limiting belt can be fixed on the top of the detection box to limit the battery inside the detection box. By toggling the arc-shaped toggle rod and pulling the connecting rope to move it, the connecting rope will pull the limiting block out of the engagement with the box body. At this time, the box cover can be rotated to open, and when the box cover made of magnetic conductive material contacts the magnet, it will be attracted to it to complete the limiting of the box cover.

[0016] 1. When testing the lithium-ion batteries that have been produced, a test box is required to detect whether the batteries have defects. When limiting the batteries in the test box, the batteries are placed in the test box and then the limiting belt is pulled to move. When the connecting block on one side of the limiting belt enters the inside of the fixed block, the card block will engage with the connecting block to complete the fixation of the limiting belt. At this time, the limiting belt can be fixed on the top of the test box to limit the batteries inside the test box. In this way, the above operation can facilitate the limiting of the batteries in the test box.

[0017] 2. When testing the lithium-ion batteries that have been produced, a test box is required to detect whether the batteries have defects. When maintaining the interior of the test box, the arc-shaped toggle lever is rotated by toggling the lever, and the toggle lever can pull the connecting rope to move, and the connecting rope will pull the limit block to move. When the limit block is disengaged from the box body, the box cover can be rotated and opened by toggling the toggle lever. When the box cover made of magnetic conductive material contacts the magnet, it will be attracted to it to complete the limit of the box cover. At this time, the interior of the test box can be maintained. In this way, the above operations can facilitate the opening and maintenance of the test box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-section of the utility model;

[0020] Figure 3 It is a right side view schematic diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-section of the box cover of the utility model;

[0022] Figure 5 It is a right side cross-sectional schematic diagram of the fixing block of the utility model;

[0023] Figure 6 It is an enlarged schematic diagram of A of the present utility model.

[0024] In the figure: 1. box body; 2. box cover; 3. vibration motor; 4. battery tester; 5. electrode contact piece; 6. threaded rod; 7. test box; 8. shell; 9. limit belt; 10. connecting shaft; 11. coil spring; 12. connecting block; 13. fixing block; 14. clamping block; 15. first spring; 16. rack block; 17. gear; 18. lever; 19. toggle lever; 20. connecting rope; 21. roller; 22. pulley; 23. limit block; 24. second spring; 25. bump; 26. magnet. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a detection box for lithium-ion batteries that is convenient for limiting the position, comprising: a box body 1 and a detection box 7, the top of the box body 1 is movably connected with a box cover 2 through a rotating shaft, the bottom of the box cover 2 is fixedly connected with a vibration motor 3, a battery tester 4 is installed inside the box body 1, an electrode contact piece 5 is installed on the top of the box cover 2, the output end of the electrode contact piece 5 is electrically connected to the battery tester 4, a threaded rod 6 is threadedly connected to the top of the box cover 2 through a mounting plate, one end of the threaded rod 6 is movably connected to the detection box 7 through a bearing, a slide groove matching the bottom slider of the detection box 7 is opened in the middle of the upper end surface of the box cover 2, and the detection box 7 is slidably connected to the slide groove,

[0027] The outer side of the detection box 7 is welded and fixed with a shell 8, and the inside of the shell 8 is movably connected with a connecting shaft 10 through a bearing. A coil spring 11 is fixedly connected to one side of the connecting shaft 10, and a limiting belt 9 is wound around the side of the connecting shaft 10 away from the coil spring 11. One side of the coil spring 11 is fixedly connected to the shell 8, and the free end of the limiting belt 9 is fixedly connected to a connecting block 12. The connecting block 12 is movably inserted in a fixed block 13. The fixed block 13 is provided with sliding grooves located on both sides of the connecting block 12, and a card block 14 that is engaged with the outer wall of the connecting block 12 is slidably installed in the sliding groove, and a first spring 15 is also provided on the side of the card block 14 away from the connecting block 12; the bottom of the fixed block 13 is provided with a rack block for mounting The rack block 16 is vertically slidably connected to the movable groove, the two sides of the rack block 16 are meshedly connected with the gear 17, and the outer side of the gear 17 is fixedly connected with a lever 18; the inside of the block 14 is provided with a movable groove matching the lever 18, and the lever 18 is movably connected to the movable groove, the two sides of the gear 17 are movably connected to the fixed block 13 through a rotating shaft, and one side of the fixed block 13 is fixedly connected to the box body 1; one end of the first spring 15 is fixedly connected to the fixed block 13, the inside of the connecting block 12 is provided with a slot matching the block 14, and the block 14 is engaged with the slot, the connecting block 12 and the block 14 constitute a locking structure, and the rack block 16 and the gear 17 constitute a meshing transmission structure.

[0028] In specific implementation, when testing the lithium-ion batteries that have been produced, a test box is needed to be used. The test box is used to detect whether the batteries have defects. When limiting the batteries in the test box, the batteries are placed in the test box 7, and then the limiting belt 9 is pulled to move. When the limiting belt 9 moves, it will drive the connecting shaft 10 to rotate, and when the connecting shaft 10 rotates, it will drive the coil spring 11 to extend. When the connecting block 12 on one side of the limiting belt 9 contacts the inclined surface of the clamping block 14 inside the fixed block 13, the clamping block 14 will move. When the clamping block 14 moves, it will squeeze the first spring 15 on one side to make it contract. When the clamping block 14 contacts the clamping groove inside the connecting block 12, the first spring 15 will reset, pushing the clamping block 14 to move and engage with the connecting block 12 to complete the fixation of the limiting belt 9. At this time, the limiting belt 9 can be fixed on the top of the test box 7 to limit the battery inside the test box 7.

[0029] When it is necessary to take out the battery in the detection box 7, the rack block 16 is pushed upward. When the rack block 16 moves, it will mesh with the gear 17 through the racks on both sides, driving the two sets of gears 17 to rotate. The gear 17 can drive the lever 18 to rotate. When the lever 18 rotates, it will move the block 14 through the movable groove inside the block 14, so that the block 14 is disengaged from the engagement with the connecting block 12. At this time, the coil spring 11 will shrink, driving the connecting shaft 10 to reverse, and the connecting shaft 10 can rewind the limiting belt 9. In this way, the above operation can facilitate the limiting of the battery in the detection box.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 One side of the box cover 2 is movably connected with a toggle rod 19 through a rotating shaft, and a protrusion 25 is fixedly connected to the bottom of the box cover 2. One side of the toggle rod 19 is fixedly connected with a connecting rope 20, and the outer side of the connecting rope 20 is wound with a roller 21 and a pulley 22; both sides of the roller 21 are movably connected with the box cover 2 through a rotating shaft, and both sides of the pulley 22 are movably connected with the box cover 2 and the protrusion 25 through a rotating shaft, and one end of the connecting rope 20 is fixedly connected to a limiting block 23; a limiting groove matching the limiting block 23 is opened on the inner side of the box body 1, and the limiting block 23 is engaged with the limiting groove, and one side of the limiting block 23 is fixedly connected with a second spring 24; one end of the second spring 24 is fixedly connected with the protrusion 25, and a magnet 26 is fixedly connected to the side of the box body 1 away from the toggle rod 19, and the toggle rod 19 forms a rotating structure with the box cover 2 through a rotating shaft, and the limiting block 23 forms a locking structure with the box body 1.

[0031] In specific implementation, when testing the lithium-ion batteries that have been produced, a test box is needed. The test box is used to detect whether the batteries have defects. When maintaining the interior of the test box, the arc-shaped toggle rod 19 is rotated by toggling the toggle rod 19, and the toggle rod 19 can pull the connecting rope 20 to move. When the connecting rope 20 moves, it will contact the pulley 22. The rotating pulley 22 can reduce the friction when the connecting rope 20 moves. The two sets of pulleys 22 can change the direction of the connecting rope 20, pull the limit block 23 to move, and when the limit block 23 moves, it will squeeze the second spring 24 on one side. When the limit block 23 is disengaged from the engagement with the box body 1, the box cover 2 can be rotated and opened by toggling the toggle rod 19. When the box cover 2 made of magnetic conductive material contacts the magnet 26, it will be attracted to it to complete the limiting of the box cover 2. At this time, the interior of the test box can be maintained. In this way, the above operation can facilitate the opening and maintenance of the test box.

[0032] To sum up: when using the detection box that is easy to limit the position of lithium-ion batteries, first put the battery into the detection box 7 and limit it, then rotate the threaded rod 6, the threaded rod 6 will be threaded with the mounting plate on the top of the box body 1, driving the detection box 7 to move, and when the detection box 7 moves, it will drive the battery to contact the electrode contact piece 5, the electrode contact piece 5 and the battery tester 4 can detect the battery, and starting the vibration motor 3 for vibration detection can expose more defects of the battery. This is the feature of the detection box that is easy to limit the position of lithium-ion batteries. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A detection box for limiting lithium-ion batteries, comprising: A box body (1) and a detection box (7), wherein the top of the box body (1) is movably connected to a box cover (2) via a rotating shaft, the bottom of the box cover (2) is fixedly connected to a vibration motor (3), a battery tester (4) is installed inside the box body (1), an electrode contact sheet (5) is installed on the top of the box cover (2), the output end of the electrode contact sheet (5) is electrically connected to the battery tester (4), the top of the box cover (2) is threadedly connected to a threaded rod (6) via a mounting plate, one end of the threaded rod (6) is movably connected to the detection box (7) via a bearing, a slide groove matching the bottom slider of the detection box (7) is provided in the middle of the upper end surface of the box cover (2), and the detection box (7) is slidably connected to the slide groove, characterized in that: A shell (8) is welded and fixed on the outer side of the detection box (7); a connecting shaft (10) is movably connected to the inside of the shell (8) via a bearing; a coil spring (11) is fixedly connected to one side of the connecting shaft (10); a limiting band (9) is wound around the side of the connecting shaft (10) away from the coil spring (11); one side of the coil spring (11) is fixedly connected to the shell (8); a connecting block (12) is fixedly connected to the free end of the limiting band (9); the connecting block (12) is movably plugged into a fixed block (13); a sliding groove is provided inside the fixed block (13) on both sides of the connecting block (12); a clamping block (14) is slidably installed in the sliding groove and is engaged with the outer wall of the connecting block (12); a first spring (15) is also provided on the side of the clamping block (14) away from the connecting block (12).

2. A detection box for lithium-ion batteries that is convenient for limiting position according to claim 1, characterized in that: The bottom of the fixed block (13) is provided with a movable groove for installing a rack block (16), and the rack block (16) is vertically slidably connected to the movable groove. Gears (17) are meshedly connected on both sides of the rack block (16), and a shifting rod (18) is fixedly connected to the outer side of the gear (17).

3. A detection box for lithium-ion batteries that facilitates position limiting according to claim 2, characterized in that: The clamping block (14) is provided with a movable groove matching the shifting rod (18), and the shifting rod (18) is movably connected to the movable groove. Both sides of the gear (17) are movably connected to the fixed block (13) via a rotating shaft, and one side of the fixed block (13) is fixedly connected to the box body (1).

4. A detection box for lithium-ion batteries that facilitates position limiting according to claim 3, characterized in that: One end of the first spring (15) is fixedly connected to the fixed block (13); a slot matching the clamping block (14) is provided inside the connecting block (12); and the clamping block (14) is clamped and connected to the slot.

5. The detection box for lithium-ion batteries according to claim 1, characterized in that: One side of the box cover (2) is movably connected to a toggle rod (19) via a rotating shaft, a protrusion (25) is fixedly connected to the bottom of the box cover (2), one side of the toggle rod (19) is fixedly connected to a connecting rope (20), and a roller (21) and a pulley (22) are wound around the outer side of the connecting rope (20).

6. A detection box for lithium-ion batteries that facilitates position limiting according to claim 5, characterized in that: The two sides of the roller (21) are movably connected to the box cover (2) via a rotating shaft, the two sides of the pulley (22) are movably connected to the box cover (2) and the protrusion (25) via a rotating shaft, and one end of the connecting rope (20) is fixedly connected to the limiting block (23).

7. A detection box for lithium-ion batteries that facilitates position limiting according to claim 6, characterized in that: A limiting groove matching the limiting block (23) is provided on the inner side of the box body (1), and the limiting block (23) is snap-connected with the limiting groove, and a second spring (24) is fixedly connected to one side of the limiting block (23).

8. The detection box for lithium-ion batteries according to claim 7, characterized in that: One end of the second spring (24) is fixedly connected to the protrusion (25), and a magnet (26) is fixedly connected to the side of the box body (1) away from the toggle rod (19).

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