Lithium battery fault detection device

Abstract

The utility model relates to the technical field of lithium battery fault detection, and discloses a lithium battery fault detection device, which comprises a detector, a probe is electrically connected in the detector, a locking assembly is arranged on one side of the detector and comprises a fixing frame, one side of the fixing frame is fixedly connected to the side wall of the detector, and the other side of the fixing frame is fixedly connected to the side wall of the detector. Nuts are fixedly connected to the two sides of the fixing frame, screw rods are in threaded connection with the interiors of the nuts, a sliding groove is formed in the fixing frame, sliding plates which are in bilateral symmetry are slidably connected to the interior of the fixing frame, and a limiting assembly is arranged at the top of the detector. According to the utility model, the screw rod is rotated to drive the sliding plate to slide in the sliding groove, so that the limiting plate is further tightly attached to the outer wall of the probe, the spring I is extruded at the same time, the effect of quickly locking the probe is realized, the problem that the probe connection of the existing detection device is easy to loosen is solved, and the test connection efficiency and the accuracy of detection data are improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery fault detection technology, and in particular to a lithium battery fault detection device. Background Technology

[0002] Lithium batteries, as an important energy storage device, are widely used in mobile electronic devices, electric vehicles, energy storage power stations and many other fields. With the continuous increase in the use of lithium batteries and the increasing complexity of application scenarios, their performance and safety have attracted much attention. During use, lithium batteries are prone to various faults due to factors such as aging, improper use, and manufacturing defects, such as capacity decay, increased internal resistance, and short circuits. Therefore, accurate and efficient detection of lithium battery faults is crucial for ensuring the reliable operation of lithium batteries, extending their service life, and ensuring the safety of related equipment and systems. Lithium battery fault detection devices have emerged to meet this need.

[0003] Existing lithium battery fault detection devices typically have a display screen for data display, operation buttons for function selection and parameter setting, and a test interface for connecting the battery. The technical principle is mainly to collect electrical parameters such as voltage and current of the battery through the test interface, process them through internal circuitry, and then display the relevant data on the screen. Based on preset standards and algorithms, a preliminary judgment is made on the battery status. For example, by measuring the voltage and current values ​​of the battery during charging and discharging, and combining Ohm's law and other principles, parameters such as internal resistance are calculated to assess the battery's health status.

[0004] In practical use, the test interface connection stability of existing lithium battery fault detection devices is not good. When the detection device is subjected to vibration, accidental pulling of the test cable, or movement of the detection device, the connection between the test interface and the battery is prone to loosening, which leads to poor contact. This will cause the data collected during the detection process to deviate or be interrupted, seriously affecting the accuracy of the detection results and failing to provide a reliable basis for lithium battery fault diagnosis. Therefore, a lithium battery fault detection device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a lithium battery fault detection device, which aims to improve the problem that existing lithium battery fault detection devices suffer from poor contact due to unstable test interface connections, susceptibility to vibration, cable pulling, etc., resulting in deviations or interruptions in test data and poor accuracy of results.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lithium battery fault detection device includes a detector, wherein a probe is electrically connected inside the detector, and a locking component is provided on one side of the detector.

[0008] The locking assembly includes a fixing frame, one side of which is fixedly connected to the side wall of the detector. Nuts are fixedly connected to both sides of the fixing frame, and screws are threaded into the nuts. A sliding groove is provided inside the fixing frame, and symmetrical sliding plates are slidably connected inside the fixing frame. The sliding plates are slidably connected inside the sliding grooves. One end of the screw is rotatably connected to the inside of the sliding plate. A spring is provided on one side of the sliding plate. One end of the spring is fixedly connected to the side wall of the sliding plate, and the other end is fixedly connected to a limit plate. The limit plate is in contact with the outer wall of the probe. A limit assembly is provided on the top of the detector.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a fixed rod and a sliding piece. The bottom of the fixed rod is fixedly connected to the upper surface of the detector, and the outer wall of the sliding piece is slidably connected to the inside of the fixed rod.

[0011] As a further description of the above technical solution:

[0012] The sliding plate has symmetrically fixed blocks on its sidewalls, and each fixed block has a slidably connected pressing block inside it.

[0013] As a further description of the above technical solution:

[0014] The fixing rod has multiple limiting grooves inside, and each side of the fixing block is provided with a spring.

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the inner wall of the fixed block, and the other end is fixedly connected to the side wall of the extrusion block.

[0017] As a further description of the above technical solution:

[0018] Each of the extrusion blocks is fixedly connected to a limiting ball on one side, and the limiting ball fits into the limiting groove. A connecting block is fixedly connected to the top of the fixing block.

[0019] As a further description of the above technical solution:

[0020] A connecting ring is fixedly connected to the top of the connecting block, and multiple retractable rods are fixedly connected to one side of the connecting ring. A limit ring is fixedly connected to one end of each retractable rod.

[0021] As a further description of the above technical solution:

[0022] Each of the retractable rods is provided with a spring three, one end of which is fixedly connected to the inner wall of the connecting ring, and the other end is fixedly connected to the outer wall of the limiting ring.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by rotating the screw, the sliding plate is driven to slide inside the groove, thereby further making the limiting plate and the outer wall of the probe fit tightly together. At the same time, the spring is squeezed, causing the spring to deform elastically, thereby achieving the effect of quickly locking the probe, solving the problem of easy loosening of the probe connection in the existing detection device, and improving the test connection efficiency and the accuracy of the test data.

[0025] 2. In this utility model, by inserting the probe into the limiting ring, the limiting ring is squeezed and elastically deformed. By pulling the limiting ring, the fixing block can slide inside the fixing rod, thereby achieving the effect of quickly storing the probe. This solves the problem of messy probe storage in existing detection devices and improves the efficiency of detection preparation and the convenience of instrument carrying. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a lithium battery fault detection device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of one side of the detector of a lithium battery fault detection device proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a structural schematic diagram of the fixed rod of a lithium battery fault detection device proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Detector; 2. Probe; 3. Fixing frame; 4. Nut; 5. Screw; 6. Sliding plate; 7. Spring 1; 8. Limiting plate; 9. Slide groove; 10. Fixing rod; 11. Sliding piece; 12. Fixing block; 13. Extrusion block; 14. Spring 2; 15. Limiting ball; 16. Limiting groove; 17. Connecting block; 18. Connecting ring; 19. Retracting rod; 20. Spring 3; 21. Limiting ring. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-3 The present invention provides an embodiment of a lithium battery fault detection device, including a detector 1, a probe 2 electrically connected inside the detector 1, and a locking component provided on one side of the detector 1. The locking component is used to facilitate the user to quickly lock the connection between the probe 2 and the detector 1, and to ensure that the connection is stable.

[0035] The locking assembly includes a fixing frame 3, which is fixedly connected to the side wall of the detector 1 on one side. The fixing frame 3 provides stable support and connection for the locking assembly. Nuts 4 are fixedly connected to both sides of the fixing frame 3, and screws 5 are threaded inside the nuts 4. The screws 5 facilitate the user to quickly drive the locking assembly to move. Locking can be achieved quickly by rotating the screws 5. The fixing frame 3 has a sliding groove 9 inside, and symmetrical sliding plates 6 are slidably connected inside the fixing frame 3. The sliding plates 6 are slidably connected inside the sliding groove 9. One end of the screws 5 is rotatably connected inside the sliding plates 6. A spring 7 is provided on one side of the sliding plates 6. The spring 7 provides elastic support for the locking assembly by its own elastic deformation. One end of the spring 7 is fixedly connected to the side wall of the sliding plates 6, and the other end is fixedly connected to a limit plate 8. The limit plate 8 is made of rubber and its function is to contact the outer wall of the probe 2 to ensure the connection stability of the probe 2. The limit plate 8 contacts the outer wall of the probe 2. A limit assembly is provided on the top of the detector 1. The limit assembly is used to quickly store and limit the probe 2.

[0036] Specifically, when components may shift or loosen due to external forces during use, affecting equipment stability, data accuracy, or causing safety risks, or when it is necessary to ensure that components remain in a fixed position under specific working conditions, the operator inserts probe 2 into the detector 1 to connect probe 2 and the detector 1 for testing the lithium battery. When connecting probe 2 and detector 1, the operator can rotate screw 5, causing it to rotate inside nut 4, which in turn moves screw 5 back and forth, pushing sliding plate 6 to slide within groove 9. The movement of sliding plate 6 causes limiting plate 8 to contact the outer wall of probe 2. Limiting plate 8 is made of rubber, so it undergoes elastic deformation upon contact with probe 2, compressing spring 7. Spring 7, when compressed, undergoes elastic deformation, storing elastic potential energy, ultimately locking probe 2. This effectively prevents loosening of the connection between probe 2 and detector 1 during testing, ensuring testing stability.

[0037] Reference Figure 4 and Figure 5 The limiting assembly includes a fixed rod 10 and a sliding piece 11. The bottom of the fixed rod 10 is fixedly connected to the upper surface of the detector 1. The fixed rod 10 provides support and connection for the limiting assembly, and provides a sliding path for the sliding piece 11 and the fixed block 12 to ensure the stability of their movement. The outer wall of the sliding piece 11 is slidably connected to the inside of the fixed rod 10. The side wall of the sliding piece 11 is fixedly connected to symmetrically arranged fixed blocks 12. Each fixed block 12 has a slidably connected compression block 13 inside. The compression block 13 transmits power so that the second spring 14 can be stably compressed and deformed. The fixed rod 10 has multiple limiting grooves 16 inside. Each fixed block 12 has a second spring 14 on one side. The second spring 14 provides elastic restoring force to the limiting ball 15 so that it can quickly return to its original position after movement. One end of the second spring 14 is fixedly connected to the fixed block. The inner wall of the fixed block 12 is fixedly connected to the side wall of the extrusion block 13 at the other end. Each side of the extrusion block 13 is fixedly connected to a limiting ball 15, which fits into the limiting groove 16. A connecting block 17 is fixedly connected to the top of the fixed block 12, and a connecting ring 18 is fixedly connected to the top of the connecting block 17. Multiple retractable rods 19 are fixedly connected to one side of the connecting ring 18. One end of the retractable rod 19 is fixedly connected to a limiting ring 21, which is made of rubber. Its function is to contact the outer wall of the probe 2, thereby containing and restricting the movement of the probe 2. Each retractable rod 19 is provided with a spring 20 on its outer wall. The function of the spring 20 is to provide elastic support for the limiting ring 21 by its own elastic deformation, and at the same time provide a reverse force for the limiting ring 21, so that the limiting ring 21 can fit tightly against the outer wall of the probe 2. One end of the spring 20 is fixedly connected to the inner wall of the connecting ring 18, and the other end is fixedly connected to the outer wall of the limiting ring 21.

[0038] Specifically, when the lithium battery fault detection device is not in use, to prevent the probe 2 from being lost or damaged due to careless placement, or from being tangled or scattered, affecting portability and usability, the operator inserts the probe 2 into the limiting ring 21. The limiting ring 21 will elastically deform and fit tightly against the outer wall of the probe 2. The elastic deformation of the limiting ring 21 will simultaneously cause the retracting rod 19 to contract, thus causing the retracting rod 19 to elastically deform and provide a reverse force to the limiting ring 21 through its restoring force, thereby restricting the movement of the probe 2. To facilitate the adjustment of the position of the probe 2, the operator can pull the limiting ring 21, causing the fixing block 12 to slide within the fixing rod 10. The sliding of the fixing block 12 causes the limiting ball 15 to be squeezed against the inner wall of the fixing rod 10, driving the limiting ball 15 to contract inward into the fixing block 12, further pressurizing the second spring 14, causing it to elastically deform. In this way, through the elastic restoring effect of the second spring 14, the device can quickly and stably adjust the position of the probe 2, facilitating precise operation and adjustment by the user.

[0039] Working Principle: When using this lithium battery fault detection device, the operator first inserts probe 2 into the detector 1, connecting probe 2 to detector 1. Probe 2 and detector 1 work together to detect the lithium battery. When connecting probe 2 to detector 1, the operator rotates screw 5, causing it to rotate inside nut 4 and move back and forth. This movement of screw 5 further drives sliding plate 6 to slide inside groove 9, bringing limiting plate 8 into contact with the outer wall of probe 2. Since limiting plate 8 is made of rubber, it undergoes elastic deformation upon contact, further compressing spring 7. Spring 7 then undergoes simultaneous elastic deformation, storing elastic potential energy, thereby locking probe 2 and preventing connection failure between probe 2 and detector 1 during the detection process. To address the loosening issue, when the device is not in use, the operator can insert the probe 2 into the limiting ring 21, causing the limiting ring 21 to elastically deform and fit tightly against the outer wall of the probe 2. Simultaneously, the elastic deformation of the limiting ring 21 drives the retraction rod 19 to contract, causing it to elastically deform as well. The elastic restoring force of the retraction rod 19 provides a counterforce to the limiting ring 21, thus restricting the movement of the probe 2. Furthermore, by directly pulling the limiting ring 21, the operator can cause the fixing block 12 to slide inside the fixing rod 10, thereby causing the limiting ball 15 to press against the inner wall of the fixing rod 10, pushing the limiting ball 15 inwards towards the fixing block 12. This further compresses the second spring 14, causing it to elastically deform, allowing the operator to quickly move and adjust the position of the probe 2.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery fault detection device, comprising a detector (1), characterized in that: The detector (1) is electrically connected to a probe (2), and a locking component is provided on one side of the detector (1); The locking assembly includes a fixing frame (3), one side of which is fixedly connected to the side wall of the detector (1). Nuts (4) are fixedly connected to both sides of the fixing frame (3). A screw (5) is threaded inside each nut (4). A sliding groove (9) is provided inside the fixing frame (3). A left-right symmetrical sliding plate (6) is slidably connected inside the fixing frame (3). The sliding plate (6) is slidably connected inside the sliding groove (9). One end of the screw (5) is rotatably connected inside the sliding plate (6). A spring (7) is provided on one side of the sliding plate (6). One end of the spring (7) is fixedly connected to the side wall of the sliding plate (6), and the other end is fixedly connected to a limiting plate (8). The limiting plate (8) is in contact with the outer wall of the probe (2). A limiting assembly is provided on the top of the detector (1).

2. The lithium battery fault detection device according to claim 1, characterized in that: The limiting component includes a fixed rod (10) and a sliding piece (11). The bottom of the fixed rod (10) is fixedly connected to the upper surface of the detector (1), and the outer wall of the sliding piece (11) is slidably connected inside the fixed rod (10).

3. The lithium battery fault detection device according to claim 2, characterized in that: The sliding plate (11) is fixedly connected to a left-right symmetrical fixing block (12) on its side wall, and each fixing block (12) is slidably connected to a pressing block (13).

4. The lithium battery fault detection device according to claim 3, characterized in that: The fixing rod (10) has multiple limiting grooves (16) inside, and each side of the fixing block (12) is provided with a spring (14).

5. A lithium battery fault detection device according to claim 4, characterized in that: One end of the second spring (14) is fixedly connected to the inner wall of the fixed block (12), and the other end is fixedly connected to the side wall of the extrusion block (13).

6. The lithium battery fault detection device according to claim 5, characterized in that: Each of the extrusion blocks (13) has a limiting ball (15) fixedly connected to one side, the limiting ball (15) and the limiting groove (16) are matched, and a connecting block (17) is fixedly connected to the top of the fixing block (12).

7. A lithium battery fault detection device according to claim 6, characterized in that: A connecting ring (18) is fixedly connected to the top of the connecting block (17), and a plurality of retractable rods (19) are fixedly connected to one side of the connecting ring (18). A limit ring (21) is fixedly connected to one end of the retractable rod (19).

8. A lithium battery fault detection device according to claim 7, characterized in that: The outer wall of each retractable rod (19) is provided with a spring three (20), one end of which is fixedly connected to the inner wall of the connecting ring (18), and the other end is fixedly connected to the outer wall of the limiting ring (21).

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