Lithium battery discharge detection device

Abstract

The utility model provides a lithium battery discharge detection device, which relates to the technical field of lithium batteries, and comprises a base, a fixing mechanism is arranged above the base, the fixing mechanism comprises two symmetrical moving plates, and one side surfaces, close to each other, of the two moving plates are fixedly connected with power connection blocks; two symmetrical dustproof mechanisms are arranged above the base, each dustproof mechanism comprises a bearing seat, a rotating rod and dustproof cloth fixedly connected to the outer surface of the corresponding movable plate, the outer surface of each rotating rod is fixedly connected with a winding roller, the outer surface of each winding roller is fixedly connected with a rope, and the ropes are matched with the dustproof cloth. According to the discharge detection device of the lithium battery, through the arrangement of the fixing mechanism and the dustproof mechanism, the connection position of the positive electrode and the negative electrode of the lithium battery can be subjected to dustproof wrapping during detection of the lithium battery, dust is prevented from falling to the connection position to affect the conductive effect, the smooth discharge process is ensured, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The utility model relates to a discharge detection device for a lithium battery, in particular to a discharge detection device for a lithium battery, and belongs to the technical field of lithium batteries. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and uses non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. After multiple charge and discharge cycles, the capacity of lithium-ion batteries will inevitably decrease. Therefore, discharge detection of lithium batteries is very important.

[0003] A discharge detection device for lithium batteries disclosed in Chinese patent application publication CN214624444U cools the airflow through a semiconductor refrigeration plate. The cooled airflow is then transmitted through a fan to a dehumidifier, which dries the airflow to prevent the moist airflow from damaging the lithium battery. The dried airflow is ejected through an air outlet, cooling the lithium battery, increasing the heat dissipation rate of the lithium battery, and extending the service life of the lithium battery.

[0004] However, during the implementation of the technical solution of the above patent, the connection position between the lithium battery and the detector is exposed. When using the discharge detector to perform discharge detection on the lithium battery, the positive and negative poles of the lithium battery need to be connected to the detector, and the metal at the connection position is exposed, which makes it easy for external dust to fall on the connection position of the positive and negative poles of the lithium battery during the detection, affecting the conductive effect, thereby affecting the discharge efficiency and causing inaccurate detection results. Utility Model Content

[0005] The purpose of the present utility model is to provide a discharge detection device for a lithium battery in order to solve the above problems.

[0006] The utility model is implemented by the following technical solutions: a discharge detection device for a lithium battery, comprising a base, a fixing mechanism is provided above the base, the fixing mechanism comprises two symmetrical movable plates, and a power connection block is fixedly connected to one side of the two movable plates close to each other;

[0007] Two symmetrical dust-proof mechanisms are provided above the base, and the dust-proof mechanisms include a bearing seat, a rotating rod, and a dust-proof cloth fixedly connected to the outer surface of the movable plate. The outer surface of the rotating rod is fixedly connected to a winding roller, and the outer surface of the winding roller is fixedly connected to a rope, the rope is adapted to the dust-proof cloth, the rope passes through the bearing seat and is slidably connected to the bearing seat, and the end of the rope away from the winding roller is fixedly connected to the outer surface of the bearing seat;

[0008] The outer surface of the rotating rod is fixedly connected to the limit plate, the outer surface of the bearing seat is fixedly connected to the guide seat, the inner wall of the guide seat is slidably connected to the limit rod, and the limit rod is adapted to the limit plate.

[0009] Preferably, the fixing mechanism also includes a bidirectional screw rotatably connected to the inner wall of the base, the outer surface of the bidirectional screw is threadedly connected to two internally threaded sliders, the two internally threaded sliders are both slidably connected to the inner wall of the base, and the two internally threaded sliders are respectively fixedly connected to the bottom surfaces of the two movable plates. When the bidirectional screw rotates, it drives the two internally threaded sliders to move away from or approach each other.

[0010] Specifically, the bottom end of the limit rod is fixedly connected to an operating plate, and the upper surface of the operating plate is fixedly connected to two springs. The top ends of the two springs are fixedly connected to the guide seat. The springs are always in a stretched state. The setting of the springs causes the limit rod to always be subjected to an upward force.

[0011] Preferably, the dustproof mechanism also includes a fixing rod fixedly connected to the upper surface of the base, and the outer surface of the supporting seat is fixedly connected with a connecting frame. The fixing rod and the connecting frame are adapted to each other, and the connecting frame is sleeved on the fixing rod, so that the supporting seat can be placed when the supporting seat is not in use.

[0012] Furthermore, the outer surface of the rotating rod is rotatably connected to two support seats, and the two support seats are fixedly connected to the upper surface of the bearing seat, and the support seats play a supporting role for the rotation of the rotating rod.

[0013] Specifically, a plurality of positioning rings are fixedly connected to the outer surface of the dustproof cloth, and the plurality of positioning rings are adapted to the ropes. The provision of the positioning rings can prevent the ropes from being separated from the dustproof cloth.

[0014] Preferably, a protective frame is fixedly connected to the upper surface of the base, and a discharge detector is fixedly connected to the upper surface of the base. The discharge detector is adapted to the power connection block, and the two power connection blocks are in close contact with the positive and negative poles of the lithium battery. The power connection block is electrically connected to the discharge detector, so that the discharge detector can discharge the lithium battery.

[0015] The utility model provides a discharge detection device for a lithium battery, which has the following beneficial effects:

[0016] 1. The lithium battery discharge detection device is equipped with a fixing mechanism and a dustproof mechanism to protect the positive and negative connection positions of the lithium battery from dust during lithium battery testing, thereby preventing dust from falling on the connection positions and affecting the conductive effect, thereby ensuring a smooth discharge process and improving the accuracy of the test results.

[0017] 2. The discharge detection device of the lithium battery places the lithium battery between two movable plates through the setting of the fixing mechanism, controls the operation of the motor on the base, drives the bidirectional screw to rotate, and makes the two internal thread sliders approach each other. The two movable plates clamp the lithium battery and make the two power blocks closely contact with the positive and negative poles of the lithium battery. Then, the lithium battery can be discharged and the test results are displayed on the discharge detector. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the split structure of the base and the internal thread slider of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable plate and the dustproof cloth of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing rod and the connecting frame of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting plate and the limiting rod of the utility model.

[0023] Description of Reference Numerals

[0024] 1. Base;

[0025] 2. Fixing mechanism; 21. Moving plate; 22. Power connection block; 23. Bidirectional screw; 24. Internal thread slider;

[0026] 3. Dustproof mechanism; 31. Dustproof cloth; 32. Bearing seat; 33. Rope; 34. Winding roller; 35. Rotating rod; 36. Limiting plate; 37. Guide seat; 38. Limiting rod; 39. Operating panel; 310. Spring; 311. Fixing rod; 312. Connecting frame; 313. Support seat; 314. Positioning ring;

[0027] 4. Protective frame; 5. Discharge detector. DETAILED DESCRIPTION

[0028] An embodiment of the utility model provides a discharge detection device for a lithium battery.

[0029] Please refer to Figure 1 、 Figure 2 and Figure 3 , including a base 1, a fixing mechanism 2 is provided above the base 1, the fixing mechanism 2 includes two symmetrical moving plates 21, and a power connection block 22 is fixedly connected to one side of the two moving plates 21 close to each other.

[0030] The fixing mechanism 2 also includes a bidirectional screw 23 rotatably connected to the inner wall of the base 1. The outer surface of the bidirectional screw 23 is threadedly connected to two internally threaded sliders 24. The two internally threaded sliders 24 are both slidably connected to the inner wall of the base 1. The two internally threaded sliders 24 are respectively fixedly connected to the bottom surfaces of the two movable plates 21. When the bidirectional screw 23 rotates, it drives the two internally threaded sliders 24 to move away from or approach each other.

[0031] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 5 Two symmetrical dust-proof mechanisms 3 are provided above the base 1. The dust-proof mechanism 3 includes a bearing seat 32, a rotating rod 35 and a dust-proof cloth 31 fixedly connected to the outer surface of the movable plate 21. A handle is provided on the rotating rod 35. The outer surface of the rotating rod 35 is fixedly connected to a winding roller 34. The outer surface of the winding roller 34 is fixedly connected to a rope 33. The rope 33 is adapted to the dust-proof cloth 31. The rope 33 passes through the bearing seat 32 and is slidably connected to the bearing seat 32. One end of the rope 33 away from the winding roller 34 is fixedly connected to the outer surface of the bearing seat 32. When the rope 33 is tightened, the dust-proof cloth 31 can be used to wrap lithium batteries of various sizes, round and square.

[0032] The outer surface of the rotating rod 35 is fixedly connected to the limit plate 36, and the outer surface of the bearing seat 32 is fixedly connected to the guide seat 37. The inner wall of the guide seat 37 is slidably connected to the limit rod 38. The limit rod 38 is adapted to the limit plate 36. An inclined surface is provided on the limit rod 38, so that when the limit plate 36 rotates counterclockwise, the limit rod 38 can be pushed downward by the inclined surface on the limit rod 38. When the limit plate 36 rotates clockwise, the limit rod 38 and the limit plate 36 are stuck together and cannot rotate.

[0033] The bottom end of the limiting rod 38 is fixedly connected to the operating plate 39, and the upper surface of the operating plate 39 is fixedly connected to two springs 310. The top ends of the two springs 310 are fixedly connected to the guide seat 37. The springs 310 are always in a stretched state. The setting of the springs 310 ensures that the limiting rod 38 is always subjected to an upward force.

[0034] The dustproof mechanism 3 also includes a fixing rod 311 fixedly connected to the upper surface of the base 1, and a connecting frame 312 is fixedly connected to the outer surface of the supporting seat 32. The fixing rod 311 and the connecting frame 312 are adapted to each other, and the connecting frame 312 is sleeved on the fixing rod 311, so that the supporting seat 32 can be placed when the supporting seat 32 is not in use.

[0035] The outer surface of the rotating rod 35 is rotatably connected to two support seats 313 . The two support seats 313 are both fixedly connected to the upper surface of the bearing seat 32 . The support seats 313 support the rotation of the rotating rod 35 .

[0036] A plurality of positioning rings 314 are fixedly connected to the outer surface of the dustproof cloth 31 . The plurality of positioning rings 314 are adapted to the rope 33 . The provision of the positioning rings 314 can prevent the rope 33 from detaching from the dustproof cloth 31 .

[0037] Please refer to Figure 1 and Figure 2 A protective frame 4 is fixedly connected to the upper surface of the base 1. An air conditioner is installed inside the protective frame 4 to ensure that the temperature of the lithium battery will not be too high during discharge. A discharge detector 5 is fixedly connected to the upper surface of the base 1. The discharge detector 5 is adapted to the power connection block 22. The two power connection blocks 22 are in close contact with the positive and negative poles of the lithium battery. The power connection block 22 is electrically connected to the discharge detector 5, so that the discharge detector 5 can discharge the lithium battery.

[0038] Working principle: After fixing the lithium battery between the two movable plates 21, put the dustproof cloth 31 on the end of the lithium battery, and then turn the handle on the rotating rod 35 to drive the rotating rod 35 and the winding roller 34 to rotate, so that the rope 33 is wound onto the winding roller 34. At this time, the limit plate 36 will push the limit rod 38 downward through the inclined surface on the limit rod 38. At this time, the spring 310 is stretched, and when the rope 33 is wound, the rope 33 will restrain the surface of the lithium battery and wrap the end of the lithium battery under the action of the dustproof cloth 31. Then the discharge of the lithium battery can be tested, and the results can be read from the display screen of the discharge tester 5. The device can perform dust-proof wrapping on the positive and negative connection positions of the lithium battery during the lithium battery test to prevent dust from falling at the connection position and affecting the conductive effect.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A discharge detection device for a lithium battery, comprising a base (1), characterized in that: A fixing mechanism (2) is provided above the base (1), and the fixing mechanism (2) comprises two symmetrical movable plates (21), and a power connection block (22) is fixedly connected to the side surfaces of the two movable plates (21) that are close to each other; Two symmetrical dustproof mechanisms (3) are provided above the base (1), and the dustproof mechanism (3) comprises a bearing seat (32), a rotating rod (35) and a dustproof cloth (31) fixedly connected to the outer surface of the movable plate (21); the outer surface of the rotating rod (35) is fixedly connected to a winding roller (34); the outer surface of the winding roller (34) is fixedly connected to a rope (33); the rope (33) is adapted to the dustproof cloth (31); the rope (33) passes through the bearing seat (32) and is slidably connected to the bearing seat (32); and one end of the rope (33) away from the winding roller (34) is fixedly connected to the outer surface of the bearing seat (32); The outer surface of the rotating rod (35) is fixedly connected to the limiting disk (36), the outer surface of the bearing seat (32) is fixedly connected to the guide seat (37), the inner wall of the guide seat (37) is slidably connected to the limiting rod (38), and the limiting rod (38) is adapted to the limiting disk (36).

2. A lithium battery discharge detection device according to claim 1, characterized in that: The fixing mechanism (2) further comprises a bidirectional screw (23) rotatably connected to the inner wall of the base (1); the outer surface of the bidirectional screw (23) is threadedly connected to two internally threaded sliders (24); the two internally threaded sliders (24) are both slidably connected to the inner wall of the base (1); and the two internally threaded sliders (24) are respectively fixedly connected to the bottom surfaces of the two movable plates (21).

3. The discharge detection device for a lithium battery according to claim 1, wherein: The bottom end of the limiting rod (38) is fixedly connected to an operating plate (39), the upper surface of the operating plate (39) is fixedly connected to two springs (310), and the top ends of the two springs (310) are fixedly connected to the guide seat (37).

4. The discharge detection device for a lithium battery according to claim 1, wherein: The dustproof mechanism (3) further comprises a fixing rod (311) fixedly connected to the upper surface of the base (1); the outer surface of the bearing seat (32) is fixedly connected to a connecting frame (312); the fixing rod (311) and the connecting frame (312) are adapted to each other.

5. The lithium battery discharge detection device according to claim 1, characterized in that: The outer surface of the rotating rod (35) is rotatably connected to two support seats (313), and the two support seats (313) are both fixedly connected to the upper surface of the bearing seat (32).

6. The lithium battery discharge detection device according to claim 1, characterized in that: The outer surface of the dustproof cloth (31) is fixedly connected with a plurality of positioning rings (314), and the plurality of positioning rings (314) are all adapted to the rope (33).

7. The lithium battery discharge detection device according to claim 1, characterized in that: A protective frame (4) is fixedly connected to the upper surface of the base (1), and a discharge detector (5) is fixedly connected to the upper surface of the base (1), wherein the discharge detector (5) is compatible with the power connection block (22).

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