A battery voltage measurement assisting device

Abstract

The utility model relates to a kind of battery pack voltage measurement auxiliary devices, including frame body, bottom plate is equipped in the bottom of frame body, two insulating plates that can be up and down are equipped on the frame body above bottom plate, a plurality of first long strip type through holes are equipped with interval on insulating plate, the first long strip type through hole is set along the length direction of insulating plate extension;A plurality of conductive probes are detachably equipped in the first long strip type through hole, when two insulating plates are up and down to work position, the lower end of conductive probe on one insulating plate and the positive plate of battery pack placed on bottom plate conductive abut, the lower end of conductive probe on another insulating plate and the negative plate of battery pack conductive abut, the upper end of conductive probe has the conductive clamping portion projecting from insulating plate.Solve the technical problem that current battery pack voltage measurement is not convenient, security is low.

Description

Technical Field

[0001] This utility model relates to the field of battery pack testing technology, and in particular to an auxiliary device for measuring battery pack voltage. Background Technology

[0002] With the development of new energy sources, battery packs have been widely used in power applications. In practical use, after a period of time, some batteries in a battery pack may experience voltage loss, necessitating voltage testing of each battery. Current testing methods typically involve using a voltmeter with alligator clips on the leads. The clips are directly engaged with the raised grips on the positive and negative electrode plates, allowing for a more stable reading and preventing slippage and short circuits. However, not all electrode plates have these grips. For plates without grips, the test leads must be held directly against the electrode plate to measure the voltage. This method is unreliable, requiring manual reading and recording, and can even cause short circuits due to tremors or slippage. Short circuit currents can reach hundreds of amperes, resulting in instantaneous sparks, electrode ablation, fuse blowouts, and in severe cases, battery thermal runaway or burns. Therefore, a voltage measurement auxiliary device is urgently needed that can be used to measure the voltage of battery packs with different electrode structures, improving the convenience and safety of voltage measurement. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model discloses a battery pack voltage measurement auxiliary device, which solves the technical problems of inconvenient and low-safety battery pack voltage measurement.

[0004] This utility model is achieved through the following technical solution:

[0005] A battery pack voltage measurement auxiliary device includes a frame with a base plate at the bottom. Two vertically movable insulating plates are mounted on the frame above the base plate. Several elongated through holes are spaced apart on the insulating plates, extending along the length of the insulating plates. Several conductive probes are detachably mounted within the elongated through holes. When the two insulating plates are raised or lowered to their working positions, the lower end of a conductive probe on one insulating plate makes conductive contact with the positive electrode of the battery pack placed on the base plate, and the lower end of a conductive probe on the other insulating plate makes conductive contact with the negative electrode of the battery pack. The upper end of each conductive probe has a conductive clamping portion protruding from the insulating plate.

[0006] Further optimized, two sets of lifting mechanisms are respectively provided on the left and right sides of the frame of the base plate. The lifting mechanism includes a vertically arranged lead screw, which is rotatably mounted on the frame. A guide rod is provided on the frame on one side of the lead screw, which is parallel to the lead screw. A nut is threadedly connected to the threaded part of the lead screw, and a through hole is provided on the nut. The nut is sleeved on the guide rod through the through hole. The nut located on the left side of the frame is connected to the nut located on the right side of the frame through the insulating plate.

[0007] In a further optimized manner, the insulating plate and each corresponding nut are connected by an L-shaped connecting plate. One side of the connecting plate is detachably connected to the nut, and the other side is provided with a second elongated through hole extending along the width direction of the insulating plate. The insulating plate is provided with a mounting hole corresponding to the position of the second elongated through hole. Fasteners pass through the second elongated through hole and the mounting hole to detachably connect the insulating plate and the connecting plate.

[0008] In a further optimized configuration, the conductive probe includes a conductive metal rod with an insulating sleeve over it. The metal rod is movable up and down relative to the insulating sleeve. The outer circumference of the metal rod covered by the insulating sleeve has a stepped design and is fitted with a compression spring. A limiting nut is threaded onto the metal rod above the insulating sleeve. A limiting protrusion is provided on the outer circumference of the insulating sleeve. The insulating sleeve above the limiting protrusion passes through a first elongated through hole and is threaded onto a mounting nut. When the lower end of the metal rod is compressed, the metal rod is pushed upward, and the upper part of the metal rod protrudes beyond the mounting nut.

[0009] Further optimized, a rotating handle is provided at the top of the lead screw.

[0010] The beneficial effects of this utility model are as follows:

[0011] The voltage measurement auxiliary device of this utility model can free people's hands to read or record, avoiding the risk of short circuit. Moreover, it is applicable to a wider range of battery packs. Regardless of whether the electrode plates of the battery pack have protruding clamping parts such as studs or bosses, it can complete the convenient and safe measurement of battery pack voltage. It is especially suitable for battery packs with electrode plates without protruding clamping parts. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0015] Figure 3 A schematic diagram of the conductive probe structure after the mounting nut has been removed;

[0016] In the diagram, 1. Frame, 2. Base plate, 3. Insulating plate, 4. First elongated through hole, 5. Conductive probe, 6. Battery pack, 7. Lead screw, 8. Guide rod, 9. Nut, 10. Connecting plate, 11. Second elongated through hole, 12. Adjusting foot, 13. Rotating handle, 14. Handle, 15. Electrode plate, 51. Metal rod, 52. Insulating jacket, 53. Compression spring, 54. Limiting nut, 55. Limiting ring, 56. Mounting nut. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0018] like Figure 1-3 As shown, a battery pack voltage measurement auxiliary device includes a frame 1, a base plate 2 at the bottom of the frame 1, and two vertically movable insulating plates 3 on the frame 1 above the base plate 2. Several first elongated through holes 4 are spaced apart on the insulating plates 3, extending along the length of the insulating plates 3. Several conductive probes 5 are detachably disposed within the first elongated through holes 4. The two insulating plates 3 have working and non-working positions along their lifting paths. When the two insulating plates 3 are raised to the working position, the lower end of the conductive probe 5 on one insulating plate 3 makes conductive contact with the positive electrode of the battery pack 6 placed on the base plate 2, and the lower end of the conductive probe 5 on the other insulating plate 3 makes conductive contact with the negative electrode of the battery pack 6. The upper end of the conductive probe 5 has a conductive clamping part protruding from the insulating plate 3.

[0019] When using this auxiliary device to measure battery pack voltage, first place the battery pack 6 on the base plate 1. Then, corresponding to the positions of the positive and negative electrodes of each battery, adjust the positions of the conductive probes 5 on the two insulating plates 3 so that each positive and negative electrode of each battery corresponds to a conductive probe 5. Next, adjust the height of the two insulating plates 3 so that the lower end of the conductive probe 5 makes conductive contact with the electrode plate 15 of the battery pack 6. Then, use the alligator clips of the voltmeter to clamp the upper end of the conductive probe 5 to measure the voltage of each battery. Using this auxiliary voltage measurement device, people can free their hands to read or record the voltage, avoiding the risk of short circuits. Moreover, it is applicable to a wider range of battery packs. Regardless of whether the electrode plate 15 of the battery pack 6 has protruding clamping parts such as studs or bosses, the voltage of the battery pack 6 can be measured conveniently and safely. It is especially suitable for battery packs with electrode plates without protruding clamping parts.

[0020] In some embodiments, two sets of lifting mechanisms are respectively provided on the left and right sides of the frame 1 of the base plate 2. The lifting mechanism includes a vertically arranged lead screw 7, which is rotatably mounted on the frame 1. A guide rod 8 is provided on the frame 1 on one side of the lead screw 7, which is parallel to the lead screw 7. A nut 9 is threadedly connected to the threaded part of the lead screw 7. A through hole is provided on the nut 9, and the nut 9 is sleeved on the guide rod 8 through the through hole. The nut 9 located on the left side of the frame 1 is connected to the nut 9 located on the right side of the frame 1 through the insulating plate 3.

[0021] The height of the insulating plate 3 can be adjusted by rotating the lead screws 7 on both the left and right sides. In this embodiment of the invention, the rotation of the two lead screws is adjusted manually at the same time. It is not necessary to be absolutely synchronized. Manual adjustment can meet the synchronous rotation accuracy requirements of the scenario, while reducing costs.

[0022] In some embodiments, the insulating plate 3 and each corresponding nut 9 are connected by an L-shaped connecting plate 10. One side of the connecting plate 10 is detachably connected to the nut 9, and the other side is provided with a second elongated through hole 11 extending along the width direction of the insulating plate 3. The insulating plate 3 is provided with a mounting hole corresponding to the position of the second elongated through hole 11. Fasteners pass through the second elongated through hole 11 and the mounting hole to detachably connect the insulating plate 3 and the connecting plate 10.

[0023] To accommodate battery packs of different sizes, the spacing between the two insulating plates 3 can be adjusted using the structure described above. The adjustment method is as follows: adjust the relative position of the mounting hole and the second elongated through hole 11, and then use fasteners to connect and fix them, thereby achieving the adjustment of the spacing between the two insulating plates 3.

[0024] In some embodiments, the conductive probe 5 includes a conductive metal rod 51, an insulating sleeve 52 is fitted over the metal rod 51, the metal rod 51 is movable up and down relative to the insulating sleeve 52, the outer circumferential portion of the metal rod 51 fitted with the insulating sleeve 52 is stepped and fitted with a compression spring 53, a limiting nut 54 is threaded onto the metal rod 51 above the insulating sleeve 52, a limiting protrusion 55 is provided on the outer circumferential surface of the insulating sleeve 52, the insulating sleeve 52 above the limiting protrusion 55 passes through a first elongated through hole 4 and is threaded onto a mounting nut 56, when the lower end of the metal rod 51 is compressed, the metal rod 51 is pushed upward, and the upper part of the metal rod 51 protrudes beyond the mounting nut 56.

[0025] Adjusting the height of the two insulating plates 3 allows the lower end of the metal rod 51 of the conductive probe to make conductive contact with the electrode plate of the battery pack 6. Under the pressure of the electrode plate, the metal rod 51 is pushed up, with its upper part protruding beyond the mounting nut 56, facilitating clamping by the alligator clips of the voltmeter. Alternatively, in the non-working state, i.e., when the lower end of the metal rod 51 is not under pressure from the electrode plate, the upper part of the metal rod 51 protrudes beyond the mounting nut 56. In the working state, i.e., when the lower end of the metal rod 51 is under pressure from the electrode plate 15, the portion of the metal rod 51 protruding beyond the mounting nut 56 increases. Using the above structure, the conductive probe 5 avoids rigid contact between the lower end of the metal rod 51 and the electrode plate 15, improving contact quality. Once sufficient contact is achieved, the upper part of the metal rod 51 is pushed out, making it easy to determine whether the conductive probe 5 is in good contact with the electrode plate 15.

[0026] When disassembling the conductive probe of this utility model, simply unscrew the mounting nut 56 to remove the metal rod 51 with the insulating jacket 52 from the insulating plate 3. Disassembly is convenient.

[0027] In some embodiments, a rotating handle 13 is provided at the top of the lead screw 7.

[0028] In some embodiments, handles 14 are provided on both sides of the frame 1, and several adjustable feet 12 are provided at the bottom of the base plate 2 for adjusting the height and level of the equipment.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0030] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A battery pack voltage measurement auxiliary device, characterized in that: The device includes a frame with a base plate at the bottom. Two vertically movable insulating plates are mounted on the frame above the base plate. Several elongated through holes are spaced apart on the insulating plates, extending along the length of the insulating plates. Several conductive probes are detachably mounted within the elongated through holes. When the two insulating plates are raised or lowered to their working positions, the lower end of a conductive probe on one insulating plate makes conductive contact with the positive electrode of the battery pack placed on the base plate, and the lower end of a conductive probe on the other insulating plate makes conductive contact with the negative electrode of the battery pack. The upper end of each conductive probe has a conductive clamping portion protruding from the insulating plate.

2. The battery pack voltage measurement auxiliary device according to claim 1, characterized in that: Two sets of lifting mechanisms are respectively installed on the left and right sides of the frame of the base plate. The lifting mechanism includes a vertically installed lead screw, which is rotatably mounted on the frame. A guide rod is installed on the frame on one side of the lead screw, which is parallel to the lead screw. A nut is threaded to the threaded part of the lead screw, and a through hole is provided on the nut. The nut is sleeved on the guide rod through the through hole. The nut located on the left side of the frame is connected to the nut located on the right side of the frame through the insulating plate.

3. The battery pack voltage measurement auxiliary device according to claim 2, characterized in that: The insulating plate and each corresponding nut are connected by an L-shaped connecting plate. One side of the connecting plate is detachably connected to the nut, and the other side is provided with a second elongated through hole extending along the width of the insulating plate. The insulating plate is provided with a mounting hole corresponding to the position of the second elongated through hole. Fasteners pass through the second elongated through hole and the mounting hole to detachably connect the insulating plate and the connecting plate.

4. The battery pack voltage measurement auxiliary device according to claim 1, characterized in that: The conductive probe includes a conductive metal rod with an insulating sleeve over it. The metal rod can move up and down relative to the insulating sleeve. The outer circumference of the metal rod covered by the insulating sleeve is stepped and fitted with a compression spring. A limiting nut is threaded onto the metal rod above the insulating sleeve. A limiting protrusion is provided on the outer circumference of the insulating sleeve. The insulating sleeve above the limiting protrusion extends through a first elongated through hole and is threaded onto a mounting nut. When the lower end of the metal rod is compressed, the metal rod is pushed upward, and the upper part of the metal rod protrudes beyond the mounting nut.

5. The battery pack voltage measurement auxiliary device according to claim 1, characterized in that: A rotating handle is provided at the top of the lead screw.

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