Insulation resistance tester convenient to use

Abstract

The utility model discloses an insulation resistance tester convenient to use, which comprises a tester body, a fixed seat is arranged on one side of the tester body, a linear guide rail is inserted in the middle of the upper end of the fixed seat, a sliding sleeve is mounted on the linear guide rail, a sliding rod is fixed in the middle of one side wall of the sliding sleeve, and an adjusting block is mounted on the sliding rod. The beneficial effects of the utility model are that through the design of the linear guide rail, the sliding sleeve, the adjusting support, the sliding rod, the sliding ring and the fixed clamping block, the insulation resistance tester can conveniently hold and fix the positive electrode test pen and the negative electrode test pen when in use, thereby saving the tedious operation of manual holding; the measurement accuracy of the insulation resistance tester is improved while the labor intensity of workers is reduced, the storage of the positive electrode test pen, the negative electrode test pen and the grounding test pen is realized in cooperation with the storage box, and the disadvantage that each test pen is easy to damage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation resistance testers, in particular to an insulation resistance tester that is easy to use. Background Art

[0002] The insulation resistance tester is a tool for measuring the insulation resistance of battery cells. It applies a DC voltage to the object being tested and calculates the resistance value by detecting the current flowing when the voltage is applied. In the battery cell production line of lithium batteries, the measurement of insulation resistance is one of the important checks for detecting defective products. Due to structural reasons, it is necessary to ensure the insulation between the positive and negative electrodes of the lithium battery and between the electrode and the shell. If the insulation cannot be maintained, that is, the insulation resistance is insufficient, a fire accident may occur. In general, the insulation resistance tester is a very important test equipment in the production of lithium batteries, and it plays an important role in ensuring the safety and performance of lithium batteries.

[0003] The existing lithium battery insulation resistance tester includes a tester, a test pen interface, a test pen, an insulating protection layer and a component concentration device. This insulation resistance tester is simple to use, has good safety performance, accurate and reliable results, stable performance, and strong anti-interference ability. However, during the use of the insulation resistance tester with the above structure, the test pen lacks a fixing means, and one person needs to fix it with his hands while the other person presses the start switch, which is very inconvenient. In addition, using hands to fix it for a long time causes fatigue and measurement errors. At the same time, since the insulation resistance tester has no mechanism to store the test pen, the test pen is easily damaged and needs to be replaced frequently. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide an insulation resistance tester which is easy to use and can realize convenient fixation of the test pen during the test process without manual holding, thereby reducing the labor intensity and test errors, and conveniently storing the test pen to avoid damage to the test pen.

[0006] (II) Technical solution

[0007] The utility model is achieved through the following technical scheme: the utility model proposes an easy-to-use insulation resistance tester, including a tester body, a fixed seat is arranged on one side of the tester body, a linear guide is inserted in the middle of the upper end of the fixed seat, a sliding sleeve is installed on the linear guide, a sliding rod is fixed in the middle of one side wall of the sliding sleeve, an adjusting block is installed on the sliding rod, an adjusting bracket is fixed on one side wall of the adjusting block through a clamp, two slip rings are symmetrically sleeved on both sides of the lower part of the adjusting bracket, a fixed card block is installed on one side wall of each slip ring, a positive test pen is installed on the fixed card block of one of the slip rings, and a negative test pen is fixed on the fixed card block on the other side of the slip ring, a storage box is also installed in the middle of the upper end of the tester body, and a grounding pen is connected to the lower part of the positive test pen and the negative test pen interface on the tester body.

[0008] Furthermore, a second T-shaped locking bolt is fixed at the middle of the top end of the slip ring, and the second T-shaped locking bolt passes through the slip ring and is threadedly connected to the slip ring.

[0009] By adopting the above technical solution, after the position of the slip ring on the adjustment bracket is adjusted, the second T-shaped locking bolt is tightened to achieve reliable position limiting of the slip ring.

[0010] Furthermore, a T-shaped locking bolt 1 is fixed to the middle of the side wall of the sliding sleeve facing away from the sliding rod, and the T-shaped locking bolt 1 penetrates the side wall of the sliding sleeve and is screwed to the sliding sleeve.

[0011] By adopting the above technical solution, after the position of the sliding sleeve on the linear guide rail is adjusted, the T-shaped locking bolt is tightened to achieve reliable position limiting of the sliding sleeve.

[0012] Furthermore, a T-shaped locking bolt 3 is screwed on the middle part of the upper end of the adjusting block, and the T-shaped locking bolt 3 passes through the side wall of the adjusting block and contacts the sliding rod.

[0013] By adopting the above technical solution, after the position of the adjusting block on the sliding rod is adjusted, the T-shaped locking bolt is tightened to achieve reliable limiting of the adjusting block.

[0014] Furthermore, the sliding sleeve is slidably connected to the linear guide rail, and the sliding rod is welded to the sliding sleeve.

[0015] By adopting the above technical solution, the sliding sleeve slides along the linear guide rail to adjust the height of the positive electrode test pen and the negative electrode test pen to meet the testing needs of lithium battery cells of different sizes.

[0016] Furthermore, the adjusting block is slidably connected to the sliding rod, and the clamp is bolted to the adjusting block.

[0017] By adopting the above technical solution, the adjusting bracket can be reliably fixed on the adjusting block under the action of the clamp.

[0018] Furthermore, the adjusting bracket is composed of an inverted T-shaped cylindrical rod, and the slip ring is slidably connected to the adjusting bracket.

[0019] By adopting the above technical solution, the slip ring is slid along the adjustment bracket, so as to adjust the distance between the positive electrode test pen and the negative electrode test pen according to the test requirements.

[0020] Furthermore, the fixed block is made of rubber, and the fixed block is bonded to the slip ring.

[0021] By adopting the above technical solution, the fixed clamping block can stably clamp the positive electrode test pen and the negative electrode test pen to replace manual holding.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In order to solve the problem that the existing lithium battery insulation resistance tester includes a tester, a test pen interface, a test pen, an insulation protection layer and a component concentration device, the insulation resistance tester is simple to use, has good safety performance, accurate and reliable results, stable performance and strong anti-interference ability, but during the use of the insulation resistance tester with the above structure, the test pen lacks a fixing means, and one person needs to fix it with his hands, and the other person presses the start switch, which is very inconvenient, and the use of hands for a long time leads to fatigue of the person and measurement errors. At the same time, since the insulation resistance tester has no mechanism for storing the test pen, the test pen is easily damaged and needs to be replaced frequently. The utility model uses the design of a linear guide, a sliding sleeve, an adjustment bracket, a sliding rod, a sliding ring and a fixed card block, so that the insulation resistance tester can realize the convenient holding and fixing of the positive test pen and the negative test pen when in use, eliminating the tedious operation of manual holding, reducing the labor intensity and improving the measurement accuracy of the insulation resistance tester, and cooperating with a storage box to realize the storage of the positive test pen, the negative test pen and the grounding test pen, avoiding the disadvantage of each test pen being easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an insulation resistance tester that is easy to use according to the utility model;

[0026] Figure 2 It is a structural schematic diagram of a slip ring and a fixed block in an insulation resistance tester that is easy to use according to the utility model;

[0027] Figure 3 The utility model discloses a top view of an adjusting block and a clamp in an insulation resistance tester which is easy to use.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Tester body; 2. Adjustment block; 3. Slide bar; 4. Fixed block; 5. Positive test pen; 6. Adjustment bracket; 7. Negative test pen; 8. Fixed seat; 9. Slip ring; 10. T-type lock bolt 1; 11. Slide sleeve; 12. Linear guide; 13. Grounding pen; 14. T-type lock bolt 2; 15. T-type lock bolt 3; 16. Clamp; 17. Storage box. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] like Figure 1-Figure 3 As shown, an easy-to-use insulation resistance tester in this embodiment includes a tester body 1, a fixing seat 8 is arranged on one side of the tester body 1, a linear guide 12 is inserted in the middle of the upper end of the fixing seat 8, a sliding sleeve 11 is installed on the linear guide 12, a sliding rod 3 is fixed in the middle of one side wall of the sliding sleeve 11, an adjusting block 2 is installed on the sliding rod 3, an adjusting bracket 6 is fixed on one side wall of the adjusting block 2 through a clamp 16, two slip rings 9 are symmetrically sleeved on both sides of the lower part of the adjusting bracket 6, and a fixed card block 4 is installed on one side wall of each slip ring 9, a positive electrode test pen 5 is installed on the fixed card block 4 of one slip ring 9, and a positive electrode test pen 5 is installed on the fixed card block 4 on the other side of the slip ring 9 There is a negative electrode test pen 7, and the sliding sleeve 11 slides along the linear guide rail 12 to adjust the height of the positive electrode test pen 5 and the negative electrode test pen 7 to meet the testing needs of lithium battery cells of different sizes. The slip ring 9 is slid along the adjustment bracket 6 to adjust the distance between the positive electrode test pen 5 and the negative electrode test pen 7 according to the testing needs. A storage box 17 is also installed in the middle of the upper end of the tester body 1. The grounding pen 13 is connected to the lower part of the interface of the positive electrode test pen 5 and the negative electrode test pen 7 on the tester body 1. The storage box 17 can store the positive electrode test pen 5, the negative electrode test pen 7 and the grounding test pen, avoiding the disadvantage that each test pen is easily damaged.

[0032] like Figure 1-Figure 3As shown, in this embodiment, a T-bolt 2 14 is fixed to the middle of the top of the slip ring 9, and the T-bolt 2 14 penetrates the slip ring 9 and is threadedly connected to the slip ring 9. When the position of the slip ring 9 on the adjusting bracket 6 is adjusted, the T-bolt 2 14 is tightened to achieve reliable positioning of the slip ring 9. A T-bolt 10 is fixed to the middle of the side wall of the sliding sleeve 11 facing away from the sliding rod 3, and the T-bolt 10 penetrates the side wall of the sliding sleeve 11 and is screwed to the sliding sleeve 11. When the position of the sliding sleeve 11 on the linear guide rail 12 is adjusted, the T-bolt 10 is tightened to achieve reliable positioning of the sliding sleeve 11. A T-bolt 3 15 is screwed to the middle of the upper end of the adjusting block 2, and the T-bolt 3 15 penetrates the side wall of the adjusting block 2 and contacts with the sliding rod 3. When the position of the adjusting block 2 on the sliding rod 3 is adjusted, the T-bolt 3 15 is tightened to achieve reliable positioning of the adjusting block 2.

[0033] like Figure 1-Figure 3 As shown, in this embodiment, the sleeve 11 is slidably connected to the linear guide 12, the slide rod 3 is welded to the sleeve 11, the adjustment block 2 is slidably connected to the slide rod 3, and the clamp 16 is bolted to the adjustment block 2. Under the action of the clamp 16, the adjustment bracket 6 can be reliably fixed on the adjustment block 2. The adjustment bracket 6 is composed of an inverted T-shaped cylindrical rod. The slip ring 9 is slidably connected to the adjustment bracket 6. The fixed clamp block 4 is made of rubber, and the fixed clamp block 4 is bonded to the slip ring 9. The fixed clamp block 4 can stably clamp the positive test pen 5 and the negative test pen 7 to replace manual holding.

[0034] The specific implementation process of this embodiment is as follows: when it is necessary to test the insulation resistance of the lithium battery cell, first adjust the distance between the two slip rings 9 according to the size of the lithium battery to be tested, and limit the position under the action of the T-shaped lock bolt 14, then fix the positive electrode test pen 5 and the negative electrode test pen 7 on the corresponding fixed card block 4 respectively, and at the same time ground the grounding pen 13, and then adjust the positive electrode test pen 5 and the negative electrode test pen 7 to the top of the lithium battery to be tested through the adjustment block 2, and make the positive electrode test pen 5 and the negative electrode test pen 7 face the wiring on the lithium battery respectively Port, and then just move the sleeve 11 down along the linear guide 12 and limit it, so that the positive test pen 5 and the negative test pen 7 are respectively in contact with the wiring ports on the lithium battery, and the insulation resistance of the lithium battery cell can be measured. Because in the above measurement method, the tedious operation of manual holding is omitted, the measurement accuracy of the insulation resistance tester is improved while the labor intensity is reduced. At the same time, the storage box 17 is used to store the positive test pen 5, the negative test pen 7 and the grounding pen 13, avoiding the disadvantage of each test pen being easily damaged.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An easy-to-use insulation resistance tester, characterized in that: The invention comprises a tester body (1), a fixing seat (8) is arranged on one side of the tester body (1), a linear guide rail (12) is inserted in the middle of the upper end of the fixing seat (8), a sliding sleeve (11) is installed on the linear guide rail (12), a sliding rod (3) is fixed in the middle of one side wall of the sliding sleeve (11), an adjusting block (2) is installed on the sliding rod (3), an adjusting bracket (6) is fixed on one side wall of the adjusting block (2) through a clamp (16), and two sliding rings are symmetrically sleeved on both sides of the lower part of the adjusting bracket (6) (9), a fixed block (4) is installed on one side wall of each of the slip rings (9), a positive electrode test pen (5) is installed on the fixed block (4) of one of the slip rings (9), and a negative electrode test pen (7) is fixed on the fixed block (4) on the other side of the slip ring (9), a storage box (17) is also installed in the middle of the upper end of the tester body (1), and a grounding pen (13) is connected to the lower part of the interface of the positive electrode test pen (5) and the negative electrode test pen (7) on the tester body (1).

2. The easy-to-use insulation resistance tester according to claim 1, characterized in that: A second T-shaped locking bolt (14) is fixed at the middle of the top end of the slip ring (9); the second T-shaped locking bolt (14) passes through the slip ring (9) and is threadedly connected to the slip ring (9).

3. The easy-to-use insulation resistance tester according to claim 1, characterized in that: A T-shaped locking bolt (10) is fixed to the middle of the side wall of the sliding sleeve (11) facing away from the sliding rod (3); the T-shaped locking bolt (10) penetrates the side wall of the sliding sleeve (11) and is screwed to the sliding sleeve (11).

4. The easy-to-use insulation resistance tester according to claim 1, characterized in that: A T-shaped locking bolt (15) is screwed onto the middle portion of the upper end of the adjusting block (2); the T-shaped locking bolt (15) penetrates the side wall of the adjusting block (2) and contacts the sliding rod (3).

5. The easy-to-use insulation resistance tester according to claim 1, characterized in that: The sliding sleeve (11) is slidably connected to the linear guide rail (12), and the sliding rod (3) is welded to the sliding sleeve (11).

6. The easy-to-use insulation resistance tester according to claim 1, characterized in that: The adjusting block (2) is slidably connected to the sliding rod (3), and the clamp (16) is bolted to the adjusting block (2).

7. The easy-to-use insulation resistance tester according to claim 1, characterized in that: The adjusting bracket (6) is composed of an inverted T-shaped cylindrical rod, and the slip ring (9) is slidably connected to the adjusting bracket (6).

8. The easy-to-use insulation resistance tester according to claim 1, characterized in that: The fixed clamp block (4) is made of rubber, and the fixed clamp block (4) is bonded to the slip ring (9).

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