A portable lithium battery safety performance detection tool

Abstract

The utility model discloses a portable lithium battery safety performance detection instrument, including explosion -proof board, battery package and work table, the bottom of explosion -proof board is provided with fixed assembly, the top of explosion -proof board is provided with detection assembly, spring cover is connected in the mobile pole outside, the top of mobile pole is located the top of explosion -proof board, the top fixed mounting of mobile pole has the pull -back, the utility model relates to lithium battery detection technical field, the portable lithium battery safety performance detection instrument utilizes U -shaped frame, first screw rod, clamping plate etc.

Description

Technical Field

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

[0002] With the booming development of the new energy industry, lithium batteries are widely used in many fields such as portable electronic devices, electric vehicles, and energy storage systems due to their advantages such as high energy density and long cycle life. However, lithium batteries have certain safety hazards during use, such as fire and explosion in cases of overcharging, over-discharging, short circuit, and puncture. Therefore, it is crucial to test the safety performance of lithium batteries.

[0003] Currently, there are many types of lithium battery safety performance testing tools on the market, but most of them have problems such as being bulky, complex in structure, and inconvenient to carry, making it difficult to meet the needs of on-site or mobile testing. At the same time, some testing tools are not convenient to operate and have low testing efficiency when performing puncture tests, and their safety needs to be further improved.

[0004] To address these issues, this invention provides a portable lithium battery safety performance testing tool. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a portable lithium battery safety performance testing tool, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable lithium battery safety performance testing tool, comprising an explosion-proof plate, a battery pack, and a workbench. A fixing component is provided at the bottom of the explosion-proof plate, and a testing component is provided at the top of the explosion-proof plate. The testing component includes a puncture needle, a movable plate is fixedly mounted on the top of the puncture needle, and a movable rod is fixedly mounted on the top of the movable plate. The movable rod movably penetrates the interior of the explosion-proof plate. A spring is fixedly installed between the top of the puncture needle and the bottom of the explosion-proof plate, and the spring is sleeved on the outside of the movable rod. The top of the movable rod is located above the explosion-proof plate, and a pull block is fixedly mounted on the top of the movable rod.

[0007] Preferably, the battery pack is placed on top of the workbench, and the fixing component includes a U-shaped frame that is sleeved on the outside of the battery pack and the workbench. A first screw is screwed through the bottom wall of the U-shaped frame, and a clamping plate is rotatably connected to the top of the first screw. The clamping plate is attached to the bottom of the explosion-proof plate, and a knob is fixedly installed at the bottom of the first screw. A connecting rod is fixedly installed at the top of the U-shaped frame, and the connecting rod is fixedly installed at the bottom of the explosion-proof plate.

[0008] Preferably, the thread lead angle of the first screw is less than the equivalent friction angle, and the first screw is coated with a protective and lubricating grease, which is a grease with strong adhesion, anti-leakage, wear resistance and anti-pollution properties.

[0009] Preferably, a bracket is fixedly installed on the top of the explosion-proof plate, an electric push rod is fixedly installed on the inner side of the top of the bracket, a movable frame is fixedly installed on the output end of the electric push rod, two adjusting plates are slidably connected between the movable frames, and a plug rod is fixedly installed on the opposite side of the two adjusting plates, and the two plug rods are respectively inserted into both sides of the pull block.

[0010] Preferably, a second screw is rotatably connected inside the movable frame. The threads on both sides of the center of the second screw have different directions of rotation, and two adjusting plates are respectively screwed to the outer sides of the threads with different directions of rotation of the second screw.

[0011] Preferably, a motor is fixedly installed on the outside of the movable frame, and the output end of the motor movably passes through the inside of the movable frame and is fixedly connected to the second screw.

[0012] Preferably, the thread lead angle of the second screw is less than the equivalent friction angle, and the outer side of the second screw is coated with a protective and lubricating grease. The grease is a grease with strong adhesion, anti-leakage, wear resistance and anti-pollution properties.

[0013] Preferably, an infrared controller is fixedly installed on the top of the explosion-proof plate, and the infrared controller is electrically connected to the motor and the electric push rod. Beneficial effects

[0014] This invention provides a portable lithium battery safety performance testing tool. Compared with the prior art, it has the following advantages:

[0015] 1. This portable lithium battery safety performance testing tool utilizes a U-shaped frame, a first screw, and a clamping plate to firmly fix the battery pack on the workbench, preventing it from moving during testing and ensuring the accuracy and safety of the test. At the same time, the lead angle of the first screw is less than the equivalent friction angle, providing a self-locking function and ensuring that the clamping plate provides a stable and reliable fixation effect on the battery pack.

[0016] 2. This portable lithium battery safety performance testing tool features a puncture needle in the testing component that can be reset under the action of a spring, making it easy to operate. Through the cooperation of the moving rod and the pull block, the puncture needle can be easily moved up and down to complete the puncture test of the battery pack. The components are reasonably connected, the size is small, and it is easy to carry, meeting the needs of on-site or mobile testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a three-dimensional view of the bottom structure of this utility model;

[0020] Figure 3 This is a three-dimensional view of the overall bottom structure of this utility model;

[0021] Figure 4 This is a three-dimensional side view of the structure of this utility model.

[0022] In the diagram: 1. Explosion-proof plate; 2. Fixing component; 21. U-shaped frame; 22. First screw; 23. Knob; 24. Clamping plate; 25. Connecting rod; 3. Detection component; 31. Puncture needle; 32. Moving plate; 33. Spring; 34. Moving rod; 35. Pull block; 36. Bracket; 37. Electric push rod; 38. Moving frame; 39. Second screw; 310. Adjusting plate; 311. Insert rod; 312. Motor; 4. Battery pack; 5. Workbench; 6. Infrared controller. Detailed Implementation

[0023] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 4This application provides a portable lithium battery safety performance testing tool, including an explosion-proof plate 1, a battery pack 4, and a workbench 5. The explosion-proof plate 1 is made of high-strength alloy material and has good explosion-proof performance, which can effectively prevent the battery pack 4 from exploding during the testing process and causing harm to the surrounding environment and personnel.

[0026] A fixing component 2 is provided at the bottom of the explosion-proof plate 1. The fixing component 2 includes a U-shaped frame 21, which is sleeved on the outside of the battery pack 4 and the workbench 5. A first screw 22 is screwed through the bottom wall of the U-shaped frame 21. A clamping plate 24 is rotatably connected to the top of the first screw 22 via a bearing. The clamping plate 24 is made of rubber and has a certain degree of elasticity to avoid damage to its surface when fixing the battery pack 4. The clamping plate 24 fits against the bottom of the explosion-proof plate 1. A knob 23 is fixedly installed at the bottom of the first screw 22. The outer side of the knob 23 is provided with anti-slip texture for easy rotation by the operator. A connecting rod 25 is fixedly installed at the top of the U-shaped frame 21 and fixedly installed at the bottom of the explosion-proof plate 1. The connecting rod 25 connects the U-shaped frame 21 and the explosion-proof plate 1 into a whole, improving the stability of the structure.

[0027] The lead angle of the first screw 22 is less than the equivalent friction angle, giving it a self-locking property. When the first screw 22 is rotated via the knob 23 to fix the battery pack 4 with the clamp 24, the first screw 22 will not rotate on its own, ensuring the stability of the fixing effect. The first screw 22 is coated with a protective and lubricating grease. The grease is a lithium-based grease with strong adhesion, anti-leakage, wear resistance, and anti-pollution properties, which can effectively reduce friction and wear between the first screw 22 and the U-shaped frame 21, while preventing dust and moisture from entering the thread gap and extending its service life.

[0028] A detection component 3 is provided on the top of the explosion-proof plate 1. The detection component 3 includes a puncture needle 31, which is made of high-strength steel with a sharp tip for easy puncture of the battery pack 4. A movable plate 32 is fixedly installed on the top of the puncture needle 31, and a movable rod 34 is fixedly installed on the top of the movable plate 32. The movable rod 34 moves through the interior of the explosion-proof plate 1. A spring 33 is fixedly installed between the top of the puncture needle 31 and the bottom of the explosion-proof plate 1, and the spring 33 is sleeved on the outside of the movable rod 34. The top of the movable rod 34 is located above the explosion-proof plate 1, and a pull block 35 is fixedly installed on the top of the movable rod 34. The pull block 35 has slots on both sides that are adapted to the insertion rod 311, and the structural design of the pull block 35 can better cooperate with the insertion rod 311 to achieve stable limiting and release.

[0029] A bracket 36 is fixedly installed on the top of the explosion-proof plate 1. The bracket 36 has an L-shaped structure. An electric actuator 37 is fixedly installed on the inner side of the top of the bracket 36. The electric actuator 37 can be an ANT-52. A movable frame 38 is fixedly installed at the output end of the electric actuator 37. The movable frame 38 has a rectangular frame structure. Two adjusting plates 310 are slidably connected between the movable frames 38. The two sides of the adjusting plates 310 are in contact with the inner sidewall of the movable frame 38 to ensure that the adjusting plates 310 can slide stably. A plug rod 311 is fixedly installed on the opposite side of each of the two adjusting plates 310. The two plug rods 311 are respectively inserted into the two sides of the pull block 35. The ends of the plug rods 311 are designed to be arc-shaped to facilitate smooth insertion and disengagement from the slots of the pull block 35.

[0030] The movable frame 38 is rotatably connected to a second screw 39. The second screw 39 is rotatably connected to the inner wall of the movable frame 38 through a bearing. The threads on both sides of the center of the second screw 39 have different directions of rotation. Two adjusting plates 310 are screwed onto the outer sides of the threads of the second screw 39 with different directions of rotation. When the second screw 39 rotates, the two adjusting plates 310 will move relative to each other or towards each other under the action of the threads.

[0031] A motor 312 is fixedly installed on the outside of the movable frame 38. The model of the motor 312 can be 57BYG250H. The output end of the motor 312 passes through the inside of the movable frame 38 through a coupling and is fixedly connected to the second screw 39. When the motor 312 is working, it can drive the second screw 39 to rotate.

[0032] The thread lead angle of the second screw 39 is less than the equivalent friction angle, and it has a self-locking function. When the adjusting plate 310 is moved to the appropriate position, the second screw 39 will not rotate on its own, ensuring the stable connection between the insert rod 311 and the pull block 35. The outer side of the second screw 39 is coated with the same grease as the first screw 22, which serves as lubrication and protection.

[0033] An infrared controller 6 is fixedly installed on the top of the explosion-proof plate 1. The infrared controller 6 can be of model RM-L101. The infrared controller 6 is electrically connected to the motor 312 and the electric push rod 37. The operator can send commands to the infrared controller 6 through the infrared remote control to control the start and stop of the motor 312 and the electric push rod 37.

[0034] The working principle of this embodiment is as follows: When using this portable lithium battery safety performance testing tool, first place the battery pack 4 on the top of the workbench 5, then fit the U-shaped frame 21 onto the outside of the battery pack 4 and the workbench 5, turn the knob 23 to drive the first screw 22 to rotate, and the first screw 22 moves upward under the action of the thread, pushing the clamping plate 24 to move upward until the clamping plate 24 is tightly attached to the bottom of the battery pack 4, thus fixing the battery pack 4 firmly.

[0035] Next, the operator sends a command to the infrared controller 6 via the infrared remote control to start the motor 312. The motor 312 drives the second screw 39 to rotate. Since the threads on both sides of the center of the second screw 39 rotate in different directions, the two adjusting plates 310 will move relative to each other, causing the insertion rod 311 to move towards the pull block 35 until the insertion rod 311 is inserted into the slots on both sides of the pull block 35. Then, the motor 312 is stopped. At this time, the insertion rod 311 forms a stable limit on the pull block 35.

[0036] Then, the electric push rod 37 is started by controlling the infrared remote control. The output end of the electric push rod 37 retracts upward, driving the moving frame 38, adjusting plate 310, insertion rod 311 and pull block 35 to move upward. The pull block 35 drives the puncture needle 31 to move upward through the moving rod 34 and moving plate 32. The spring 33 is compressed. When the pull block 35 moves to the appropriate height, that is, when the spring 33 is compressed to the required degree, the electric push rod 37 is stopped.

[0037] Subsequently, the control motor 312 rotates in the reverse direction, driving the second screw 39 to rotate in the reverse direction, causing the two adjusting plates 310 to move towards each other, separating the insertion rod 311 from the pull block 35, and releasing the limit on the pull block 35. Under the elastic force of the spring 33, the pull block 35 moves downward rapidly, driving the puncture needle 31 to move downward rapidly through the moving rod 34 and the moving plate 32, performing a puncture detection on the battery pack 4.

[0038] After the test is completed, if a second test is required, the above operation can be repeated; if the test is finished, simply reset all components.

[0039] Furthermore, all contents not described in detail in this specification are existing technologies known to those skilled in the art, and all electrical components mentioned in this document are powered by external power supply lines.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable lithium battery safety performance testing tool, comprising an explosion-proof plate (1), a battery pack (4), and a workbench (5), characterized in that: The bottom of the explosion-proof plate (1) is provided with a fixing component (2), and the top of the explosion-proof plate (1) is provided with a detection component (3). The detection component (3) includes a puncture needle (31). A movable plate (32) is fixedly installed on the top of the puncture needle (31). A movable rod (34) is fixedly installed on the top of the movable plate (32). The movable rod (34) moves through the interior of the explosion-proof plate (1). A spring (33) is fixedly installed between the top of the puncture needle (31) and the bottom of the explosion-proof plate (1). The spring (33) is sleeved on the outside of the movable rod (34). The top of the movable rod (34) is located above the explosion-proof plate (1). A pull block (35) is fixedly installed on the top of the movable rod (34).

2. The portable lithium battery safety performance testing tool according to claim 1, characterized in that: The battery pack (4) is placed on top of the workbench (5). The fixing component (2) includes a U-shaped frame (21). The U-shaped frame (21) is sleeved on the outside of the battery pack (4) and the workbench (5). A first screw (22) is screwed through the bottom wall of the U-shaped frame (21). A clamp (24) is rotatably connected to the top of the first screw (22). The clamp (24) is attached to the bottom of the explosion-proof plate (1). A knob (23) is fixedly installed at the bottom of the first screw (22). A connecting rod (25) is fixedly installed at the top of the U-shaped frame (21). The connecting rod (25) is fixedly installed at the bottom of the explosion-proof plate (1).

3. The portable lithium battery safety performance testing tool according to claim 2, characterized in that: The thread lead angle of the first screw (22) is less than the equivalent friction angle. The first screw (22) is coated with a protective and lubricating grease. The grease is a grease with strong adhesion, anti-leakage, wear resistance and anti-pollution properties.

4. The portable lithium battery safety performance testing tool according to claim 1, characterized in that: A bracket (36) is fixedly installed on the top of the explosion-proof plate (1). An electric push rod (37) is fixedly installed on the inner side of the top of the bracket (36). A movable frame (38) is fixedly installed at the output end of the electric push rod (37). Two adjusting plates (310) are slidably connected between the movable frames (38). A plug rod (311) is fixedly installed on the opposite side of the two adjusting plates (310). The two plug rods (311) are respectively inserted into the two sides of the pull block (35).

5. A portable lithium battery safety performance testing tool according to claim 4, characterized in that: The movable frame (38) is rotatably connected to a second screw (39). The threads on both sides of the center of the second screw (39) have different directions of rotation. Two adjusting plates (310) are respectively screwed to the outside of the threads of the second screw (39) with different directions of rotation.

6. A portable lithium battery safety performance testing tool according to claim 5, characterized in that: A motor (312) is fixedly installed on the outside of the movable frame (38). The output end of the motor (312) moves through the inside of the movable frame (38) and is fixedly connected to the second screw (39).

7. A portable lithium battery safety performance testing tool according to claim 6, characterized in that: The thread lead angle of the second screw (39) is less than the equivalent friction angle. The outer side of the second screw (39) is coated with a protective and lubricating grease. The grease is a grease with strong adhesion, anti-leakage, wear resistance and anti-pollution properties.

8. A portable lithium battery safety performance testing tool according to claim 1, characterized in that: An infrared controller (6) is fixedly installed on the top of the explosion-proof plate (1), and the infrared controller (6) is electrically connected to the motor (312) and the electric push rod (37).

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