Fuse fusing test tool

Abstract

The utility model relates to the technical field of fuse test equipment, and particularly discloses a fuse fusing test tool, which comprises a base, an insulating column shell A and an insulating column shell B. The insulating column shell A and the insulating column shell B are internally provided with fuse electrode connecting structures. The fuse electrode connecting structure comprises a long straight conductive plate, a butt clamping piece A fixed at the top end of the long straight conductive plate, and a butt clamping piece B fixed at one side of the middle part of the long straight conductive plate, wherein one side of the bottom end of the long straight conductive plate is elastically connected with a conductive contact piece. According to the device, two symmetrical fuse electrode connection structures are designed, the device is suitable for electrode pairing of fuses of most shapes in the market, one fuse electrode connection structure can move transversely, the device is suitable for electrode pairing of fuses of most sizes, the testing efficiency is improved, the potentiometer can adjust the circuit current value, and the testing precision is improved. The potentiometer is used for testing the fusing current value of the fuse, and the potentiometer is quickly connected in series with the fuse electrode connection structure through the wire harness, thereby facilitating disassembly and storage.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuse testing equipment technical field, specifically, relate to a fuse fuse testing tool. BACKGROUND

[0002] When the working current of a certain electrical equipment in the circuit exceeds its rated current, if no timely protective measures are taken, it may cause the equipment to overheat, damage and even cause a fire. As a kind of overcurrent protection device, fuse can quickly fuse and cut off the circuit when the current exceeds its rated value, thereby avoiding the damage of electrical equipment caused by excessive current. This overload protection function is crucial to protect the integrity of the circuit and the equipment. Due to the difference of power consumption scene, the fuse current is tested, so as to be used in circuits with different current protection values. At present, there are many types of fuses, and the test method of directly adopting contact and fuse electrode lap joint is not safe, and there is no test tool suitable for so many types and sizes of fuses. Therefore, we propose a fuse fuse testing tool. SUMMARY

[0003] In view of the above technical problems in the related art, the utility model provides a fuse fuse testing tool, which can solve the above problems.

[0004] To achieve the above technical purpose, the technical scheme of the utility model is as follows:

[0005] A fuse fuse testing tool, comprising a base, an insulating column shell A and an insulating column shell B, the insulating column shell A and the insulating column shell B are provided with a fuse electrode connecting structure inside, the fuse electrode connecting structure comprises a long straight conductive plate, a pair of clamping pieces A fixed on the top end of the long straight conductive plate, a pair of clamping pieces B fixed on one side of the middle part of the long straight conductive plate, a conductive contact piece is elastically connected to one side of the bottom end of the long straight conductive plate, a sliding groove is formed in the top of the base, the insulating column shell A is embedded and slidably arranged in the sliding groove, the insulating column shell B is fixed on the top of the base and is oppositely arranged with the insulating column shell A, an adjusting screw is threadedly connected to one side of the base, the adjusting screw penetrates through the base, extends into the sliding groove and is rotatably connected with one side of the insulating column shell A, a wiring end A and a wiring end B are respectively arranged on the surface of the base, the wiring end A and the wiring end B are electrically connected with the fuse electrode connecting structure of the insulating column shell A and the insulating column shell B respectively, and the wiring end A and the wiring end B are connected with a potentiometer through wires respectively.

[0006] Further, a conductive circular piece is fixedly arranged on one side of the bottom end of the long straight conductive plate, and the conductive circular piece is connected with the conductive contact piece through a conductive spring.

[0007] Further, a through hole A for accommodating the pair of clamping pieces A is formed in the top end of the insulating column shell A, a through hole B for accommodating the pair of clamping pieces B and a through hole C for accommodating the conductive contact piece are formed in one side of the insulating column shell A.

[0008] Further, the terminal A is electrically connected with the fuse electrode connection structure inside the insulating column shell A through a flexible wire.

[0009] Further, the pair of clamping pieces A and the pair of clamping pieces B are each composed of two elastic conductive clamping pieces, the top ends of the two elastic conductive clamping pieces are arc-shaped and abut against each other.

[0010] Further, the insulating column shell A is embedded with a bearing on one side, and the end of the adjusting screw is in interference fit with the inner ring of the bearing.

[0011] The device of the present application is designed with two symmetrical fuse electrode connection structures, is suitable for electrode pairing of most fuses on the market, one fuse electrode connection structure can be moved horizontally, is suitable for electrode pairing of most size fuses, reduces the time consumption of fuse electrode connection, and improves the test efficiency.

[0012] The potentiometer can adjust the circuit current value, is used for testing the fuse current value, and the potentiometer is connected in series with the fuse electrode connection structure through a wire harness, and is convenient to disassemble and store. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0014] The present application will be further described in detail below according to the drawings.

[0015] Fig. 1 is a structural schematic view of a fuse blowout test tool;

[0016] Fig. 2 is a structural schematic view of the symmetrical arrangement of the fuse electrode connection structure of the two insulating column shells;

[0017] Fig. 3 is an exploded view of the insulating column shell A and the adjusting screw.

[0018] In the drawings:

[0019] 1, base; 2, adjusting screw; 3, sliding groove; 4, transparent insulating cover; 5, insulating column shell A; 6, fuse electrode connection structure; 601, pair of clamping pieces A; 602, long straight conductive plate; 603, pair of clamping pieces B; 604, conductive contact piece; 7, insulating column shell B; 8, terminal A; 9, terminal B; 10, potentiometer; 11, conductive disc; 12, conductive spring; 13, bearing. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0021] like Figs. 1-3 As shown, this utility model discloses a fuse failure testing tool, including a base 1, an insulating shell A5, and an insulating shell B7. Both insulating shells A5 and B7 have a fuse electrode connection structure 6 inside. The fuse electrode connection structure 6 includes a long straight conductive plate 602, a clamping piece A601 fixed to the top of the long straight conductive plate 602, and a clamping piece B603 fixed to one side of the middle of the long straight conductive plate 602. A conductive contact piece 604 is elastically connected to one side of the bottom of the long straight conductive plate 602. A groove 3 is provided on the top of the base 1, and the bottom of the insulating shell A5 is slidably embedded in the groove 3. The insulating shell B7 is fixed to the top of the base 1 and is opposite to the insulating shell A5. An adjusting screw 2 is threadedly connected to one side of the base 1, and the adjusting screw 2 passes through the base. 1. Extending into the groove 3 and rotatably engaging with one side of the insulating column housing A5, the base 1 surface is respectively provided with terminal A8 and terminal B9. Terminal A8 and terminal B9 are electrically connected to the fuse electrode connection structure 6 of the insulating column housing A5 and the insulating column housing B7, respectively. Terminal A8 and terminal B9 are respectively connected to potentiometer 10 through wires. The top of the insulating column housing A5 is provided with a through hole A for accommodating the clamping piece A601. One side of the insulating column housing A5 is provided with a through hole B for accommodating the clamping piece B603 and a through hole C for accommodating the conductive contact piece 604. Terminal A8 is electrically connected to the fuse electrode connection structure 6 inside the insulating column housing A5 through a flexible wire. Terminal B9 is electrically connected to the fuse electrode connection structure inside the insulating column housing B7 through a flexible wire.

[0022] In the preferred technical solution, the bottom end of the long straight conductive plate 602 is fixedly provided with a conductive round sheet 11, the conductive round sheet 11 is connected with the conductive contact sheet 604 through a conductive spring 12, the conductive spring 12 is a wire metal spring, and is used for forming a passage of the conductive round sheet 11, the conductive contact sheet 604 and the long straight conductive plate 602.

[0023] When the cylindrical fuse is adapted, the two ends of the fuse are respectively attached to the conductive contact sheet 604, the interval between the insulating column shell A5 and the insulating column shell B7 is adjusted, the compression of the conductive spring 12 is realized to clamp the cylindrical fuse.

[0024] When the elongated fuse with horizontal electrodes is adapted, the two electrodes of the fuse are respectively clamped and matched with the clamping piece B603.

[0025] When the elongated fuse with vertical electrodes is adapted, the two electrodes of the fuse are respectively clamped and matched with the clamping piece A601.

[0026] The wiring terminal A8 and the wiring terminal B9 are connected to the potentiometer 10 through a wire harness, the potentiometer 10 is connected to a power supply, the output current is adjusted through the control knob matched with the internal electrical element, so that the fusing current value of the fuse is tested.

[0027] In the preferred technical solution, the bottom end of the long straight conductive plate 602 is fixedly provided with a conductive round sheet 11, the conductive round sheet 11 is connected with the conductive contact sheet 604 through a conductive spring 12, the conductive spring 12 is a wire metal spring, and is used for forming a passage of the conductive round sheet 11, the conductive contact sheet 604 and the long straight conductive plate 602.

[0028] In the preferred technical solution, the clamping piece A601 and the clamping piece B603 are both composed of two elastic conductive clamping pieces, the top ends of the two elastic conductive clamping pieces are arc-shaped and are attached to each other, the clamping direction of the clamping piece A601 is vertical, the clamping direction of the clamping piece B603 is horizontal, the electrode end of the fuse is clamped, and the fuse electrode end is suitable for cylindrical and flat fuses.

[0029] In the preferred technical scheme, the bearing 13 is inlaid on one side of the insulating column shell A5, the end of the adjusting screw 2 is in interference fit with the inner ring of the bearing 13, the end of the adjusting screw 2 rotates in the inner ring of the bearing 13 on the side wall of the insulating column shell A5, and the insulating column shell A5 cannot be rotated, but the insulating column shell A5 can be pushed to move laterally during the rotation of the adjusting screw 2, so as to adjust the distance between the insulating column shell A5 and the insulating column shell B7.

[0030] Specifically, in use, the potentiometer 10 is connected with the connection terminals A and B through a wire harness, the electrode end of the fuse is clamped and connected with the matching position of the fuse electrode connecting structure 6 of the insulating column shell A5 and the insulating column shell B7, the potentiometer 10 is connected with a power supply to form a voltage dividing circuit, the size of the output current can be infinitely changed by adjusting the resistance value of the potentiometer, the potentiometer 10 and the fuse form a series circuit, so as to test the fusing current value of the fuse, and the transparent insulating cover 4 needs to be covered during the test process, so as to improve the safety.

[0031] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fuse blowout testing tool, characterized in that, The device includes a base (1), an insulating cylindrical shell A (5), and an insulating cylindrical shell B (7). Both the insulating cylindrical shell A (5) and the insulating cylindrical shell B (7) have a fuse electrode connection structure (6). The fuse electrode connection structure (6) includes a long straight conductive plate (602), a clamping piece A (601) fixed to the top of the long straight conductive plate (602), and a clamping piece B (603) fixed to one side of the middle of the long straight conductive plate (602). A conductive contact piece (604) is elastically connected to one side of the bottom of the long straight conductive plate (602). A sliding groove (3) is provided on the top of the base (1), and the bottom of the insulating cylindrical shell A (5) is slidably embedded in the sliding groove (3). The insulating column shell B (7) is fixed to the top of the base (1) and is opposite to the insulating column shell A (5). An adjusting screw (2) is threaded to one side of the base (1). The adjusting screw (2) passes through the base (1), extends into the slide groove (3), and rotates with one side of the insulating column shell A (5). The surface of the base (1) is provided with terminals A (8) and B (9). Terminals A (8) and B (9) are electrically connected to the fuse electrode connection structure (6) of the insulating column shell A (5) and the insulating column shell B (7), respectively. Terminals A (8) and B (9) are connected to the potentiometer (10) through wires.

2. The fuse blowout testing tool according to claim 1, characterized in that, A conductive disc (11) is fixedly provided on one side of the bottom end of the long straight conductive plate (602), and the conductive disc (11) is connected to the conductive contact piece (604) through a conductive spring (12).

3. The fuse blowout testing tool according to claim 1, characterized in that, The top of the insulating cylindrical shell A (5) is provided with a through hole A to accommodate the clamping piece A (601), and the side of the insulating cylindrical shell A (5) is provided with a through hole B to accommodate the clamping piece B (603) and a through hole C to accommodate the conductive contact piece (604).

4. The fuse blowout testing tool according to claim 1, characterized in that, The terminal A (8) is electrically connected to the fuse electrode connection structure (6) inside the insulating cylindrical shell A (5) via a flexible wire.

5. A fuse blowout testing tool according to claim 1, characterized in that, Both the clip A (601) and the clip B (603) are composed of two elastic conductive clips, the tops of which are arc-shaped and fit together.

6. The fuse blowing test tool according to claim 1, characterized in that, A bearing is embedded on one side of the insulating cylindrical shell A (5), and the end of the adjusting screw (2) is interference-fitted with the inner ring of the bearing.

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