Battery state detection device for lead-acid storage battery pack

Abstract

The utility model discloses a battery state detection device for a lead-acid storage battery pack, which comprises a battery resistance detection device of a lead-acid storage battery, a battery resistance tester and a data line with a probe, the rotating assembly comprises a fixed column fixedly connected with the battery resistance tester shell, a connecting rod rotationally connected with the fixed column and a fixed box fixedly connected with one end of the connecting rod through a screw, and a separation frame is fixedly connected in the fixed box; the moving assembly comprises a fixing rod which is fixedly connected with the fixing box and the separation frame; the portable internal resistance tester is provided with the fixing mechanism fixed on the battery placing cabinet or the battery rack, the fixing box and the permanent magnet iron sheet are attached to the battery placing cabinet or the battery rack, and the permanent magnet iron sheet is connected with the battery placing cabinet or the battery rack made of magnetic metal through magnetic adsorption. And the fixing box is fixed on a battery placing cabinet or a battery rack, so that the battery resistance tester can be placed in a suspended manner.

Description

Technical Field

[0001] This utility model belongs to the field of lead-acid battery pack testing technology, specifically relating to a battery status testing device for lead-acid battery packs. Background Technology

[0002] Lead-acid battery packs are power sources composed of multiple lead-acid batteries connected in series, parallel, or series-parallel configurations. After prolonged use, these batteries may become unhealthy, requiring monitoring to assess their condition and provide a comprehensive evaluation. A portable internal resistance tester is a device used to measure the internal resistance of battery packs. The tester consists of a main unit and a data cable with probe clips. To use it, connect the data cable with the probe clips to the positive and negative terminals of the battery. Operate the panel on the tester to apply an AC voltage signal of known frequency and amplitude to the battery terminals. Measure the AC current in phase with the voltage. According to Ohm's law, the ratio of the AC voltage component to the AC current is the battery's internal resistance. This method allows for quick and accurate measurement of battery internal resistance, helping to determine the battery's health. It is widely used for battery pack maintenance in substations, power plants, and other similar locations.

[0003] Portable internal resistance testers are used in substations, power plants and other places where battery packs are usually arranged in an orderly manner inside metal battery cabinets or on battery racks. It is necessary to use a handheld portable internal resistance tester to test the internal resistance of different battery packs. The testing process requires holding the portable internal resistance tester continuously, which is inconvenient. It is also not possible to fix the handheld portable internal resistance tester to the battery cabinet or battery rack, which is a drawback.

[0004] When existing handheld portable internal resistance testers test batteries in battery storage cabinets or battery racks that are arranged in an orderly manner, there is a problem that the portable internal resistance testers do not have a fixing mechanism to be fixed to the battery storage cabinets or battery racks. To address this issue, this application proposes a battery status detection device for lead-acid battery packs. Utility Model Content

[0005] The purpose of this invention is to provide a battery status detection device for lead-acid battery packs, so as to solve the problem mentioned in the background art that the portable internal resistance tester does not have a fixing mechanism for fixing to the battery storage cabinet or battery rack.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery status detection device for lead-acid battery packs, comprising...

[0007] A battery resistance testing device for lead-acid batteries, including a battery resistance tester and a data cable with a probe;

[0008] The rotating assembly includes a fixed column fixedly connected to the housing of the battery resistance tester, a connecting rod rotatably connected to the fixed column, and a fixed box fixedly connected to one end of the connecting rod by screws. The fixed box has a partition frame fixedly connected inside.

[0009] The movable assembly includes a fixed rod fixedly connected to a fixed box and a partition frame, a compression spring and a fixed plate sleeved on the outside of the fixed rod, and a movable plate fixedly connected between opposing fixed plates, the surface of which is glued with a permanent magnet sheet.

[0010] Preferably, the fixing box is connected to a blocking member, which includes a limiting strip and a blocking strip that is pulled out of the fixing box.

[0011] Preferably, a groove is formed on the surface of the fixing box, and the blocking strip is inserted into the groove.

[0012] Preferably, the fixed box has an internal movable cavity that communicates with the groove, the partition frame separates the groove and the movable cavity, and the movable plate is located inside the movable cavity.

[0013] Preferably, the cross-section of the movable plate is a "U" shaped structure, and the two ends of the compression spring are respectively connected to the fixed box and the fixed plate.

[0014] Preferably, the distance between the fixed plate and the partition frame is H1, and the distance between the movable plate and the surface of the fixed box is H2, wherein H1 and H2 are the same.

[0015] Preferably, a limiting pad is glued to the outer surface of the fixing box, and a recessed groove is formed on the surface of the limiting pad.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this utility model, the portable internal resistance tester has a fixing mechanism designed to be fixed on a battery storage cabinet or battery rack. The fixing box and the permanent magnet are attached to the battery storage cabinet or battery rack. The permanent magnet is connected to the battery storage cabinet or battery rack made of magnetic metal by magnetic adsorption, so that the fixing box is fixed on the battery storage cabinet or battery rack, thereby realizing the suspension of the battery resistance tester. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0020] Figure 3This is a top view of the fixing box of this utility model;

[0021] Figure 4 This is a cross-sectional view of the fixing box of this utility model;

[0022] In the diagram: 1. Battery resistance tester; 2. Data cable; 3. Fixing post; 4. Connecting rod; 5. Fixing box; 6. Limiting pad; 8. Moving plate; 51. Groove; 52. Divider frame; 61. Cable groove; 71. Limiting strip; 72. Blocking strip; 81. Permanent magnet sheet; 91. Fixing rod; 92. Compression spring; 93. Fixing plate. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a battery status detection device for lead-acid battery packs, including a battery resistance detection device for lead-acid batteries, comprising a battery resistance tester 1 and a data cable 2 with a probe. The usage method and principle of the battery resistance tester 1 and the data cable 2 with a probe are existing technologies and will not be described in detail in this application; a rotating component, including a fixed column 3 fixedly connected to the housing of the battery resistance tester 1, a connecting rod 4 rotatably connected to the fixed column 3, and a fixed box 5 fixedly connected to one end of the connecting rod 4 by screws. A partition frame 52 is fixedly connected inside the fixed box 5. The fixed column 3 is fixed to the housing of the battery resistance tester 1 by studs. The connecting rod 4 rotates about the fixed column 3 as an axis, which can change the angle between the connecting rod 4 and the fixed box 5. There is frictional resistance between the connecting rod 4 and the fixed column 3. Under the action of frictional resistance, the connecting rod 4 and the fixed box 5 remain stable; a moving component, including a fixed rod 91 fixedly connected to the fixed box 5 and the partition frame 52, and a sleeve on the fixed rod The compression spring 92 and the fixed plate 93 on the outside of 91, and the movable plate 8 fixedly connected between the opposing fixed plates 93, when not obstructed by external force, the fixed plate 93 moves along the b direction due to the elastic force generated by the contraction of the compression spring 92. The movable plate 8 moves towards the outside of the fixed box 5. A permanent magnet piece 81 is glued to the surface of the movable plate 8. The permanent magnet piece 81 is flush with the surface of the movable plate 8 on the same side. When the movable plate 8 inside the fixed box 5 is flush with the surface of the fixed box 5 on the same side, the permanent magnet piece 81 is flush with the surface of the fixed box 5. The fixed box 5 and the permanent magnet piece 81 can be attached to the battery storage cabinet or battery rack. The permanent magnet piece 81 is attracted to the battery storage cabinet or battery rack made of magnetic metal, so that the fixed box 5 is fixed on the battery storage cabinet or battery rack. This allows the battery resistance tester 1 to be suspended in the air, freeing up the hands of the tester for other test items or recording of test data, making it easy to operate and use.

[0025] In this embodiment, a blocking member is connected to the fixing box 5. The blocking member includes a limiting strip 71 and a blocking strip 72 that is pulled and connected to the fixing box 5. A groove 51 is provided on the surface of the fixing box 5. The blocking strip 72 is inserted into the groove 51. The blocking strip 72 serves to block the moving plate 8, so that there is a gap between the moving plate 8 and the permanent magnet sheet 81 and the fixing box 5, so as to prevent the permanent magnet sheet 81 from being attracted to the external metal products.

[0026] In this embodiment, the fixed box 5 has an open movable cavity inside, which is connected to the groove 51. The partition frame 52 separates the groove 51 and the movable cavity. The movable plate 8 is located in the movable cavity. The partition frame 52 limits the fixed plate 93, so that the fixed plate 93 and the movable plate 8, which are subjected to the elastic force of the compression spring 92, remain stable.

[0027] In this embodiment, the cross-section of the movable plate 8 is a "U" shaped structure. The two ends of the compression spring 92 are connected to the fixed box 5 and the fixed plate 93 respectively. The fixed plate 93 and the movable plate 8 will move under the elastic force of the compression spring 92. The positions of the fixed plate 93 and the movable plate 8 can be changed by the compression and extension of the compression spring 92.

[0028] In this embodiment, the distance between the fixed plate 93 and the partition frame 52 is H1, and the distance between the movable plate 8 and the surface of the fixed box 5 is H2. H1 and H2 are the same. When the fixed plate 93 moves a distance of H1, the movable plate 8 is flush with the surface of the fixed box 5.

[0029] In this embodiment, a limiting pad 6 is glued to the outer surface of the fixing box 5. A recessed groove 61 is formed on the surface of the limiting pad 6. The limiting pad 6 is made of rubber material. One end of the data cable 2 can be inserted into the groove 61 to limit the data cable 2.

[0030] Working principle and usage process of this utility model:

[0031] When using a portable internal resistance tester to test the internal resistance of the battery pack in the battery storage cabinet or battery rack, the connecting rod 4 is rotated about the fixed column 3 as the axis to change the angle between the connecting rod 4 and the fixed box 5. There is frictional resistance between the connecting rod 4 and the fixed column 3. Under the action of frictional resistance, the connecting rod 4 and the fixed box 5 remain stable.

[0032] Pull out the limiting bar 71 and the blocking bar 72 along direction a;

[0033] Without being obstructed by the external force of the blocking bar 72, the fixed plate 93 moves along the b direction due to the elastic force generated by the contraction of the compression spring 92, and the moving plate 8 moves towards the outside of the fixed box 5.

[0034] When the fixed plate 93 moves a distance of H1, the moving plate 8 is flush with the surface of the fixed box 5, and the permanent magnet piece 81 is flush with the surface of the fixed box 5.

[0035] The fixing box 5 and the permanent magnet piece 81 are attached to the battery storage cabinet or battery rack. The permanent magnet piece 81 is magnetically connected to the battery storage cabinet or battery rack made of magnetic metal, so that the fixing box 5 is fixed on the battery storage cabinet or battery rack. This allows the battery resistance tester 1 to be suspended in the air, freeing up the hands of the tester to perform other tests or record test data, making it easier to operate and use.

[0036] When the battery resistance tester 1 and the data cable 2 are in a retracted state and not being detected, one end of the data cable 2 can be inserted into the groove 61 of the limiting pad 6 to limit the data cable 2.

[0037] In summary: The portable internal resistance tester in this application has a fixing mechanism designed to be fixed on a battery storage cabinet or battery rack. The fixing box 5 and the permanent magnet plate 81 are attached to the battery storage cabinet or battery rack. The permanent magnet plate 81 is connected to the battery storage cabinet or battery rack made of magnetic metal by magnetic adsorption, so that the fixing box 5 is fixed on the battery storage cabinet or battery rack, thereby realizing the suspension of the battery resistance tester 1.

[0038] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery status detection device for lead-acid battery packs, characterized in that: include A battery resistance testing device for lead-acid batteries includes a battery resistance tester (1) and a data cable (2) with a probe; The rotating assembly includes a fixed column (3) fixedly connected to the housing of the battery resistance tester (1), a connecting rod (4) rotatably connected to the fixed column (3), and a fixed box (5) fixedly connected to one end of the connecting rod (4) by screws. The fixed box (5) has a partition frame (52) fixedly connected inside. The movable assembly includes a fixed rod (91) fixedly connected to the fixed box (5) and the partition frame (52), a compression spring (92) sleeved on the outside of the fixed rod (91) and a fixed plate (93), and a movable plate (8) fixedly connected between the opposing fixed plates (93), on the surface of the movable plate (8) by adhesive bonding of a permanent magnet sheet (81).

2. The battery status detection device for lead-acid battery packs according to claim 1, characterized in that: The fixing box (5) is connected to a blocking member, which includes a limiting strip (71) and a blocking strip (72) that is pulled out and connected to the fixing box (5).

3. The battery status detection device for lead-acid battery packs according to claim 2, characterized in that: The surface of the fixing box (5) is provided with a groove (51), and the blocking strip (72) is inserted into the groove (51).

4. The battery status detection device for lead-acid battery packs according to claim 3, characterized in that: The fixed box (5) has an open movable cavity inside, which is connected to the groove (51). The partition frame (52) separates the groove (51) and the movable cavity, and the movable plate (8) is located inside the movable cavity.

5. The battery status detection device for lead-acid battery packs according to claim 1, characterized in that: The movable plate (8) has a U-shaped cross-section, and the two ends of the compression spring (92) are connected to the fixed box (5) and the fixed plate (93) respectively.

6. The battery status detection device for lead-acid battery packs according to claim 1, characterized in that: The distance between the fixed plate (93) and the partition frame (52) is H1, and the distance between the movable plate (8) and the surface of the fixed box (5) is H2, where H1 and H2 are the same.

7. The battery status detection device for lead-acid battery packs according to claim 1, characterized in that: A limiting pad (6) is glued to the outer surface of the fixing box (5), and a recessed groove (61) is formed on the surface of the limiting pad (6).

Images