A portable charge-discharge detection instrument

Abstract

This utility model discloses a portable charge and discharge testing instrument, including a main body of the instrument and a telescopic support device. By setting up the telescopic support device, the support plate can be pulled outwards, allowing it to move a long distance in conjunction with the telescopic frame. This ensures that the limiting groove at the upper end of the support frame is exposed to the outside, allowing the lithium battery to be tested to be placed in the limiting groove, ensuring its stability during charge and discharge testing. Simultaneously, rotating the screw at the upper right side of the support plate drives the clamping bars on the front and rear sides of the screw thread to firmly hold the lithium battery, further improving its stability, accelerating testing efficiency, and avoiding excessive cumbersome steps.

Description

Technical Field

[0001] This utility model relates to the field of charge and discharge testing instruments, specifically a portable charge and discharge testing instrument. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental conditions. With the development of science and technology, lithium-ion batteries have become mainstream. Charge-discharge testing is an essential part of lithium-ion battery production. The main functions of a battery charge-discharge tester include: constant current discharge function for battery packs, online monitoring function, rapid capacity analysis function, and activation function.

[0003] An existing application with application number 202321460200.6 discloses a testing device for charging and discharging a PACK battery pack, comprising: a testing mechanism for testing the charging and discharging of the PACK battery pack; and a protective mechanism disposed on one side of the testing mechanism for protecting the testing mechanism. The protective mechanism includes a protective component, which includes a protective plate. A support plate is disposed above the protective plate, and a connecting screw is disposed at the end of the support plate away from the protective plate. The protective component, comprising the protective plate, support plate, positioning hole, and connecting screw, is disposed on one side of the testing device. When the testing device is not in use, the protective component is placed on the surface of the vent hole, and then connected to the testing device by the connecting screw. The protective plate protects the vent hole, preventing dust from entering the testing device through the vent hole.

[0004] The existing device has a protective component on one side of the detector to protect it from dust when it is not in use, preventing dust from entering the detector. However, when the detector is performing charge and discharge tests on lithium batteries, it lacks a structure to place and fix the lithium batteries, making it inconvenient to place the lithium batteries, which is not conducive to the detection efficiency of lithium batteries and the operation process is time-consuming and laborious. Utility Model Content

[0005] The purpose of this invention is to provide a portable charge and discharge testing instrument to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a portable charging and discharging testing instrument, comprising a main body of the instrument, a strap on the top of the main body, a power button on the front side of the main body, a touch screen on the front side of the main body, with the touch screen and power button facing each other horizontally, positive cable interface and negative cable interface respectively on both sides of the lower front end of the main body, and a telescopic support device located at the lower end of the main body, the telescopic support device comprising a fixed shell, the fixed shell being fixedly connected to the lower end of the main body, a magnetic block being provided in the middle of the side of the fixed shell, a telescopic frame being connected to the side of the fixed shell, and the side of the telescopic frame away from the fixed shell being connected to a support plate, a limiting groove being provided at the upper end of the support plate, a handle being fixedly provided in the middle of the right side of the support plate, and a clamping component being provided inside the limiting groove.

[0007] Preferably, the telescopic frame includes a first connecting rod, one side of which is rotatably connected to the interior of the fixed shell, and the side of the first connecting rod away from the fixed shell is connected to the interior of the connecting shell. The second connecting rod is slidably connected to the interior of the fixed shell, and the side of the second connecting rod away from the fixed shell is rotatably connected to the connecting shell. The middle parts of the first connecting rod and the second connecting rod are connected to each other. A guide groove is provided on one side of the connecting shell, and the interior of the guide groove is connected to one end of the first connecting rod.

[0008] Preferably, the clamping assembly includes a screw, which is rotatably mounted inside the support plate. Clamping strips are threadedly connected to both sides of the screw, and the clamping strips are located on both sides inside the limiting groove. A guide rod is provided inside the clamping strip, and a slider is slidably mounted outside the guide rod. A spring is connected to one side of the slider. The upper end of the slider is rotatably connected to the connecting arm, and the side of the connecting arm away from the slider is rotatably connected to the lifting strip. Elastic locking rods are provided on both sides inside the lifting strip, and the outer ends of the elastic locking rods are inserted into and locked to the clamping strip.

[0009] Preferably, there are no fewer than five first connecting rods and two connecting rods, and each first connecting rod and second connecting rod rotates and connects sequentially.

[0010] Preferably, the length of the connecting shell is the same as the length of the fixed shell, and guide grooves are provided at both the upper and lower ends of the rear side of the connecting shell.

[0011] Preferably, the screw has external threads on both the front and rear sides along the middle, and the external threads on both sides of the screw are arranged in opposite directions.

[0012] Preferably, the lifting bar is embedded inside the upper end of the clamping bar, and connecting arms are rotatably connected to both the left and right sides of the bottom of the lifting bar.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model incorporates a telescopic support device, which allows the support plate to move outward over a long distance in conjunction with the telescopic frame by pulling the support plate outward. This ensures that the limiting groove at the upper end of the support frame can be exposed to the outside, allowing the lithium battery to be tested to be placed in the limiting groove, thus ensuring the stability of its charging and discharging test.

[0015] 2. This utility model incorporates a clamping assembly. By rotating the screw located on the upper right side of the support plate, the screw thread drives the clamping bars on the front and rear sides to clamp and secure the lithium battery, further improving its placement stability, accelerating testing efficiency, and avoiding excessive cumbersome steps. Furthermore, by releasing the locking mechanism between the elastic locking rods on both sides of the lifting plate and the clamping bars, the lifting plate can be raised by the linkage of the guide rod, slider, and spring, thereby increasing the clamping height of the clamping bars. This allows it to meet the clamping stability requirements of taller lithium batteries, further enhancing its flexibility of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the combined structure of the main body of the detector and the telescopic support device of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the telescopic support device of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the telescopic support device of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the clamping component of this utility model;

[0021] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: Detector body-1, strap-2, power button-3, touch screen-4, positive cable interface-5, negative cable interface-6, telescopic support device-7, fixed shell-71, magnetic block-72, telescopic frame-73, first connecting rod-731, second connecting rod-732, connecting shell-733, guide groove-734, support plate-74, limiting groove-75, handle-76, clamping assembly-77, screw-771, clamping bar-772, guide rod-773, slider-774, spring-775, connecting arm-776, lifting bar-777, elastic locking rod-778. Detailed Implementation

[0023] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0024] Please see Figures 1-2 This utility model provides a portable charge and discharge testing instrument, including a testing instrument body 1, a strap 2 on the top of the testing instrument body 1, a power button 3 on the front side of the testing instrument body 1, a touch screen 4 on the front side of the testing instrument body 1, with the touch screen 4 and the power button 3 facing each other horizontally, a positive cable interface 5 and a negative cable interface 6 respectively on the lower front side of the testing instrument body 1, and a telescopic support device 7 located at the lower end of the testing instrument body 1.

[0025] Please see Figures 3-4 In this embodiment, the telescopic support device 7 includes a fixed shell 71, which is fixedly connected to the lower left side of the detector body 1. A magnetic block 72 is provided in the middle of the upper right side of the fixed shell 71. A telescopic frame 73 is connected to the right side of the fixed shell 71, and the side of the telescopic frame 73 away from the fixed shell 71 is connected to the support plate 74. The middle of the upper left side of the support plate 74 can be magnetically fixed to the magnetic block 72. A limiting groove 75 for limiting the placement of lithium batteries is opened at the upper end of the support plate 74. A handle 76 is fixed in the middle of the right side of the support plate 74. A clamping component 77 is provided inside the limiting groove 75.

[0026] The telescopic frame 73 includes a first connecting rod 731. The left side of the first connecting rod 731 is rotatably connected to the front side of the interior of the fixed shell 71. The side of the first connecting rod 731 away from the fixed shell 71 is slidably connected to the rear side of the connecting shell 733. The second connecting rod 732 is slidably connected to the rear side of the interior of the fixed shell 71. The side of the second connecting rod 732 away from the fixed shell 71 is rotatably connected to the front side of the connecting shell 733. The sides of the first connecting rod 731 and the second connecting rod 732 away from the fixed shell 71 are also rotatably connected to another second connecting rod 732 and the first connecting rod 731, thus realizing the composition of a multi-segment telescopic structure to meet the telescopic inward or outward movement. The middle of the first connecting rod 731 and the second connecting rod 732 are rotatably connected. A guide groove 734 is provided on the rear side of the connecting shell 733. The interior of the guide groove 734 is connected to the rear end of the first connecting rod 731 and the rear end of the second connecting rod 732.

[0027] The number of first connecting rods 731 and second connecting rods 732 shall not be less than five, and each first connecting rod 731 and second connecting rod 732 shall be rotated and connected in sequence. The positions of the first connecting rods 731 and second connecting rods 732 shall be rotatably connected to the front side of the inner side of the connecting shell 733 and slidably connected to the guide groove 734 opened on the rear side of the connecting shell 733, respectively.

[0028] The length of the connecting shell 733 is the same as that of the fixed shell 71, and guide grooves 734 are provided at both the upper and lower ends of the rear side of the connecting shell 733. The consistent length ensures neat folding and storage. At the same time, the guide grooves 734 can meet the stable telescopic transmission of the telescopic frame 73.

[0029] Please see Figures 5-6 In this embodiment, the clamping assembly 77 includes a screw 771, which is rotatably mounted inside the upper right side of the support plate 74. Clamping bars 772 are threadedly connected to both the front and rear sides of the screw 771, and the clamping bars 772 are laterally embedded inside the front and rear sides of the limiting groove 75. A guide rod 773 for moving guidance is laterally installed inside the clamping bar 772. A slider 774 is slidably installed on both the left and right sides of the guide rod 773, and one side of each slider 774 is connected to a spring 775. The side of the spring 775 away from the slider 774 is connected to the inside of the clamping bar 772. The upper ends of each slider 774 are rotatably connected to a connecting arm 776, and the side of the connecting arm 776 away from the slider 774 is rotatably connected to a lifting bar 777. Elastic locking rods 778 are provided on both the left and right sides inside the lifting bar 777, and the outer ends of the elastic locking rods 778 are respectively inserted and locked into the upper left and right sides of the clamping bar 772.

[0030] The elastic locking rod 778 consists of a locking rod and a compression spring sleeved on the outside. By pulling the locking rod to compress the compression spring, the elastic locking rod 778 can be moved inward to unlock, so as to quickly release the locking of the lifting bar 777. When the elastic locking rod 778 is inserted and locked inside the clamping bar 772, the stability of the closed state of the lifting bar 777 is ensured.

[0031] The screw 771 has external threads on both the front and rear sides along the middle, and the external threads on both sides of the screw 771 are set in opposite directions, so that when the screw 771 rotates, the clamping bars 772 set on the front and rear sides can move in opposite directions.

[0032] The lifting bar 777 is embedded inside the upper end of the clamping bar 772, and the bottom left and right sides of the lifting bar 777 are rotatably connected to the connecting arms 776. That is, with the cooperation of the two connecting arms 776 moving relative to or opposite to each other, the lifting bar 777 can be conveniently moved up to unfold or down to retract.

[0033] The working principle is as follows:

[0034] First, the strap 2 on the upper part of the main body 1 of the detector can be easily picked up and carried. When in use, the power button 3 on the front of the main body 1 of the detector can be used to start the detector and light up the touch screen 4. At this time, the external wiring is connected to the positive cable interface 5, negative cable interface 6 and other interfaces on the front of the main body 1 of the detector to complete the wiring. In this way, the lithium battery charging and discharging detection can be realized through the control of the touch screen 4.

[0035] To ensure stable placement of lithium batteries during charging and discharging tests, the support plate 74 can be moved out from the lower right side of the main body 1 by pulling the handle 76 located in the middle of the right side of the support plate 74. During the movement of the support plate 74, the telescopic frame 73 will be extended. The telescopic frame 73, with the linkage of the first connecting rod 731, the second connecting rod 732, the connecting shell 733, and the guide groove 734, allows the support plate 74 to move out laterally. In this way, the limiting groove 75 opened at the upper end of the support plate 74 will be exposed to support the lithium battery to be tested, ensuring its stability during subsequent charging and discharging tests.

[0036] Meanwhile, to further improve its placement stability, after the lithium battery is placed inside the limiting groove 75, the screw 771 on the upper right side of the support plate 74 can be rotated. As the screw 771 rotates, the clamping bars 772 threaded to the front and rear sides of the screw 771 will move back and forth relative to each other inside the limiting groove 75 to clamp the lithium battery placed inside the limiting groove 75. This clamps the lithium battery to be tested, further enhancing its placement stability. At the same time, when the clamping bar 772 has a small clamping size and is difficult to adapt to taller lithium batteries, the locking of the elastic locking rods 77 on both sides inside the lifting bar 777 to the clamping bar 772 can be released. Thus, the clamping bars 772 located on the left and right sides of the guide rod 773 can be locked. The springs 775 on both sides, which are in a compressed state, will automatically rebound to pull the sliders 774 slidably mounted on the outside of the guide rod 773. Thus, the sliders 774 on the left and right sides of the guide rod 773 can move laterally in opposite directions in conjunction with the rebound pulling effect. As the sliders 774 on both sides move in opposite directions, the connecting arms 776 on the upper end of the sliders 774 on both sides can be rotated to lift the top connecting lifting bar 777, so that it moves out of the upper end of the clamping bar 772, thereby improving the clamping contact position and making it suitable for the stable clamping of higher lithium batteries. This greatly improves the stability and adjustability of lithium battery clamping, making the overall lithium battery testing process easy and convenient, without too many cumbersome steps.

[0037] The above description is merely 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 portable charge and discharge testing instrument, comprising a testing instrument body (1), a strap (2) provided on the top of the testing instrument body (1), a power button (3) provided on the front side of the testing instrument body (1), a touch screen (4) provided on the front side of the testing instrument body (1), and the touch screen (4) and the power button (3) being horizontally opposite each other, and a positive cable interface (5) and a negative cable interface (6) respectively provided on both sides of the lower front side of the testing instrument body (1). characterized in that It also includes a telescopic support device (7) located at the lower end of the main body (1) of the detector. The telescopic support device (7) includes a fixed shell (71) which is fixedly connected to the lower end of the main body (1) of the detector. A magnetic block (72) is provided in the middle of the side of the fixed shell (71). A telescopic frame (73) is connected to the side of the fixed shell (71), and the side of the telescopic frame (73) away from the fixed shell (71) is connected to the support plate (74). A limiting groove (75) is opened at the upper end of the support plate (74). A handle (76) is fixedly provided in the middle of the right side of the support plate (74). A clamping component (77) is provided inside the limiting groove (75).

2. The portable charge-discharge detection instrument according to claim 1, characterized in that: The telescopic frame (73) includes a first connecting rod (731), one side of which is rotatably connected to the inside of the fixed shell (71), and the side of the first connecting rod (731) away from the fixed shell (71) is connected to the inside of the connecting shell (733). A second connecting rod (732) is slidably connected to the inside of the fixed shell (71), and the side of the second connecting rod (732) away from the fixed shell (71) is rotatably connected to the connecting shell (733). The middle parts of the first connecting rod (731) and the second connecting rod (732) are connected to each other. A guide groove (734) is provided on one side of the connecting shell (733), and the inside of the guide groove (734) is connected to one end of the first connecting rod (731).

3. The portable charge / discharge testing instrument according to claim 1, characterized in that: The clamping assembly (77) includes a screw (771), which is rotatably mounted inside the support plate (74). Clamping bars (772) are threadedly connected to both sides of the screw (771), and the clamping bars (772) are located on both sides inside the limiting groove (75). A guide rod (773) is provided inside the clamping bar (772). A slider (774) is slidably mounted on the outside of the guide rod (773), and a spring (775) is connected to one side of the slider (774). The upper end of the slider (774) is rotatably connected to the connecting arm (776), and the side of the connecting arm (776) away from the slider (774) is rotatably connected to the lifting bar (777). Both sides of the lifting bar (777) are provided with elastic locking rods (778), and the outer end of the elastic locking rods (778) is inserted and locked to the clamping bar (772).

4. The portable charge-discharge detection instrument according to claim 2, characterized in that: The number of the first connecting rod (731) and the second connecting rod (732) shall not be less than five, and each of the first connecting rods (731) and the second connecting rod (732) shall rotate and connect in sequence.

5. The portable charge-discharge detection instrument according to claim 2, characterized in that: The length of the connecting shell (733) is consistent with the length of the fixed shell (71), and guide grooves (734) are provided at both the upper and lower ends of the rear side of the connecting shell (733).

6. The portable charge-discharge detection instrument according to claim 3, characterized in that: The screw (771) has external threads on both the front and rear sides along the middle, and the external threads on both sides of the screw (771) are arranged in opposite directions.

7. The portable charge-discharge detection instrument according to claim 3, characterized in that: The lifting bar (777) is embedded inside the upper end of the clamping bar (772), and the bottom left and right sides of the lifting bar (777) are rotatably connected to the connecting arms (776).

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