Portable voltage internal resistance instrument for security check of lithium battery

Abstract

The utility model belongs to the technical field of lithium batteries, and particularly relates to a portable voltage internal resistance instrument for lithium battery security check, which comprises a voltage internal resistance instrument body, the top surface of the voltage internal resistance instrument body is connected with a start button and an adjusting knob, and the top surface of the voltage internal resistance instrument body is also connected with a display screen and a docking port. The voltage internal resistance instrument comprises a voltage internal resistance instrument body, the two sides of the voltage internal resistance instrument body are connected with handles, a detection probe is inserted into the butt joint port, and a protection plate is arranged on the surface of the top end, close to the butt joint port, of the voltage internal resistance instrument body. The butt joint port can be shielded through the protection plate, the butt joint port is prevented from being exposed in air, dust in the air is prevented from falling into the butt joint port to affect data transmission, and therefore the protection effect is achieved, meanwhile, the taken-down detection probe is stored through the storage box, the situation that the detection probe is placed at will is avoided, and the storage effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, specifically relating to a portable voltage and internal resistance meter for lithium battery safety inspection. Background Technology

[0002] A lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and employs a non-aqueous electrolyte solution. The working principle of a lithium battery utilizes the property that lithium ions can carry electrons. Lithium batteries are generally made of lithium compounds and carbon materials. Lithium ions can intercalate or deintercalate between these two materials. During this process, electrons migrate along with the lithium ions; this process can be understood as the charging and discharging process of the battery.

[0003] During the lithium battery manufacturing process, safety testing is required to prevent quality issues. This necessitates the use of a voltage internal resistance meter, which calculates the voltage and internal resistance values ​​by applying a certain current or voltage to the tested object and measuring its response. However, existing voltage internal resistance meters have certain shortcomings. For example, after use, the detection probe needs to be removed, exposing the interface. Furthermore, the meter lacks protective components for this interface, leaving it exposed to air. Air contains dust, which can easily fall into the interface and interfere with the probe's readings during subsequent use. To avoid these issues, we provide a portable voltage internal resistance meter for lithium battery safety testing. Utility Model Content

[0004] The purpose of this invention is to provide a portable voltage resistance meter for lithium battery security inspection, aiming to solve the shortcomings of existing voltage resistance meters. For example, after using the voltage resistance meter, the detection probe needs to be removed, which exposes the interface. Furthermore, the voltage resistance meter lacks protective components for the interface, leaving it exposed to air. Air contains dust, which can easily fall into the interface and affect the normal detection data of the detection probe during subsequent use. To avoid these issues, we provide a portable voltage resistance meter for lithium battery security inspection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable voltage internal resistance meter for lithium battery safety inspection, comprising a voltage internal resistance meter body, a start button and an adjustment knob connected to the top surface of the voltage internal resistance meter body, a display screen and a docking interface also connected to the top surface of the voltage internal resistance meter body, handles connected to both sides of the voltage internal resistance meter body, a detection probe inserted into the docking interface, a protective plate provided on the top surface of the voltage internal resistance meter body near the docking interface, fixing posts connected to both ends of the protective plate, a snap-fit ​​lock connected to the top surface of the protective plate, a docking block connected to the top surface of the voltage internal resistance meter body, and a threaded insertion pin connected to the side wall of the docking block.

[0006] As a preferred embodiment of the portable voltage resistance meter for lithium battery safety inspection of this utility model, the protective plate is rotatably connected to the top of the voltage resistance meter body through a fixed column, and the protective plate is made of transparent plastic.

[0007] As a preferred embodiment of the portable voltage and internal resistance meter for lithium battery safety inspection of this utility model, the top of the docking block has a notch larger than the snap-fit ​​latch, and the snap-fit ​​latch is fixedly connected to the docking block through a pin.

[0008] As a preferred embodiment of the portable voltage and internal resistance meter for lithium battery safety inspection of this utility model, the protective plate and the snap-fit ​​buckle are integrally connected, and the protective plate is fixedly connected to the docking block through the snap-fit ​​buckle and the insertion pin.

[0009] As a preferred embodiment of the portable voltage resistance meter for lithium battery security inspection of this utility model, a storage box is built into the front end of the voltage resistance meter body, and a key lock is connected to the front end of the storage box.

[0010] As a preferred embodiment of the portable voltage resistance meter for lithium battery safety inspection of this utility model, the storage box is fixedly connected to the voltage resistance meter body by a key lock.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This invention allows the voltage internal resistance meter body to be used without the detection probe removed from the interface. The protective plate can cover the interface to prevent it from being exposed to the air and allowing dust to fall into the interface and affect data transmission, thus providing protection. At the same time, the removed detection probe is stored in a storage box to avoid the detection probe being placed randomly, thus serving a storage function. Attached Figure Description

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the connection structure of the detection probe of the main body of this utility model;

[0017] Figure 4 This is a schematic diagram of the protective plate connection structure of this utility model.

[0018] In the diagram: 1. Voltage and internal resistance meter body; 2. Start button; 3. Adjustment knob; 4. Display screen; 5. Handle; 6. Storage box; 7. Key lock; 8. Protective plate; 9. Fixing post; 10. Snap-fit ​​lock; 11. Connecting block; 12. Insertion pin; 13. Detection probe; 14. Interface. Detailed Implementation

[0019] 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. Example

[0020] Please see Figure 1-4 This utility model provides the following technical solution: a portable voltage internal resistance meter for lithium battery safety inspection, including a voltage internal resistance meter body 1, a start button 2 and an adjustment knob 3 connected to the top surface of the voltage internal resistance meter body 1, a display screen 4 and a docking interface 14 also connected to the top surface of the voltage internal resistance meter body 1, handles 5 connected to both sides of the voltage internal resistance meter body 1, a detection probe 13 inserted into the inside of the docking interface 14, a protective plate 8 provided on the top surface of the voltage internal resistance meter body 1 near the docking interface 14, fixing posts 9 connected to both ends of the protective plate 8, a snap-fit ​​lock 10 connected to the top surface of the protective plate 8, a docking block 11 connected to the top surface of the voltage internal resistance meter body 1, and a plug pin 12 threadedly connected to the side wall of the docking block 11.

[0021] In a preferred embodiment: the protective plate 8 is rotatably connected to the top of the voltage internal resistance meter body 1 via the fixing column 9, and the protective plate 8 is made of transparent plastic.

[0022] In a preferred embodiment: the top of the docking block 11 has a notch larger than the snap-fit ​​latch 10, and the snap-fit ​​latch 10 is fixedly connected to the docking block 11 through the insertion pin 12.

[0023] In a preferred embodiment: the protective plate 8 and the snap-fit ​​latch 10 are integrally connected, and the protective plate 8 is fixedly connected to the docking block 11 through the snap-fit ​​latch 10 and the insertion pin 12.

[0024] In the embodiments, firstly, the voltage internal resistance meter body 1 belongs to the existing mature technology, and its working principle also belongs to the current mature operating procedure. At the same time, the voltage internal resistance meter body 1 has no obvious connection with the technical features described in this article, so it will not be described in detail here.

[0025] After the voltage internal resistance meter body 1 is used, the detection probe 13 is removed from the interface 14, and then the protective plate 8 is rotated. Then, the protective plate 8 drives the fixing post 9 to rotate at the top of the voltage internal resistance meter body 1. At this time, the protective plate 8 drives the locking buckle 10 to approach the docking block 11. Then, the locking buckle 10 is inserted into the opening at the top of the docking block 11. Next, the plug pin 12 is taken out and screwed in along the side wall of the docking block 11 until the plug pin 12 passes through the docking block 11 and the locking buckle 10 and stops. Then, the protective plate 8 is fixed at the top of the interface 14 to prevent the interface 14 from being exposed to the air and allowing dust in the air to fall into the interface 14 and affect the data transmission, thereby playing a protective role. Example

[0026] Please see Figure 1-4 The front end of the voltage internal resistance meter body 1 is connected to a storage box 6, and the front end of the storage box 6 is connected to a key lock 7.

[0027] In a preferred embodiment, the storage box 6 is fixedly connected to the voltage internal resistance meter body 1 via a key lock 7.

[0028] In the embodiments described in Embodiment 1 above, after the detection probe 13 is removed from the interface 14, the key lock 7 can be opened to remove the storage box 6 from the inside of the voltage internal resistance meter body 1, and then the detection probe 13 can be placed into the storage box 6. Then the storage box 6 can be pushed back into the inside of the voltage internal resistance meter body 1 and fixed with the key lock 7 to prevent the detection probe 13 from being placed randomly, thereby achieving the purpose of storage.

[0029] It should be noted that: the start button 2 is used to start the operation of the voltage internal resistance meter body 1, the adjustment knob 3 is used to adjust the detection voltage, the handle 5 is used to carry the voltage internal resistance meter body 1, the detection probe 13 is used to connect the lithium battery for safety testing, and the display screen 4 is used to observe the voltage internal resistance. At the same time, the voltage internal resistance meter body 1 is used for lithium battery safety testing, so there is no further description above.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A portable voltage resistance meter for lithium battery safety inspection, comprising a voltage resistance meter body (1), characterized in that: The top surface of the voltage internal resistance meter body (1) is connected to a start button (2) and an adjustment knob (3). The top surface of the voltage internal resistance meter body (1) is also connected to a display screen (4) and a docking interface (14). The two sides of the voltage internal resistance meter body (1) are connected to handles (5). The docking interface (14) is connected to a detection probe (13). The voltage internal resistance meter body (1) has a protective plate (8) on its top surface near the interface (14). The two ends of the protective plate (8) are connected to fixed posts (9). The top surface of the protective plate (8) is connected to a snap-fit ​​latch (10). The top surface of the voltage internal resistance meter body (1) is connected to a docking block (11). The side wall of the docking block (11) is threaded with a plug pin (12).

2. The portable voltage and internal resistance meter for lithium battery safety inspection according to claim 1, characterized in that: The protective plate (8) is rotatably connected to the top of the voltage internal resistance meter body (1) via a fixed column (9), and the protective plate (8) is made of transparent plastic.

3. The portable voltage and internal resistance meter for lithium battery safety inspection according to claim 1, characterized in that: The top of the docking block (11) has a notch larger than the snap-fit ​​latch (10), and the snap-fit ​​latch (10) is fixedly connected to the docking block (11) through the insertion pin (12).

4. The portable voltage and internal resistance meter for lithium battery safety inspection according to claim 1, characterized in that: The protective plate (8) is integrally connected with the snap-fit ​​latch (10), and the protective plate (8) is fixedly connected to the docking block (11) through the snap-fit ​​latch (10) and the insertion pin (12).

5. The portable voltage and internal resistance meter for lithium battery safety inspection according to claim 1, characterized in that: The front end of the voltage internal resistance meter body (1) is connected to a storage box (6), and the front end of the storage box (6) is connected to a key lock (7).

6. The portable voltage and internal resistance meter for lithium battery safety inspection according to claim 5, characterized in that: The storage box (6) is fixedly connected to the voltage internal resistance meter body (1) via a key lock (7).

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