High and low temperature test clamp for medium and wide range current sensor

Abstract

The utility model relates to the field of test fixtures, and discloses a medium and wide range current sensor high and low temperature test fixture, which comprises a base, the top of the base is fixedly connected with a test board, the base is internally provided with a clamping assembly, and the left side and the right side of the base are fixedly connected with two sliding rods respectively. A moving block is slidably connected between the exteriors of the two sliding rods on the same side, a first pin is fixedly connected to the top of the moving block on the right side, a second pin is fixedly connected to the top of the moving block on the right side, a plurality of wires are fixedly connected into the second pin, and a carding assembly is installed on the top of the second pin. According to the utility model, the push rod is pushed to drive the baffle ring to compress the spring, the connecting rod pulls the pull rod to move towards the inner side, and the fixing bolt automatically falls down and is inserted into the jack due to gravity, so that the current sensor can be quickly clamped for detection, and the current sensor can be loosened only by pulling the jack, time and labor are saved, and the working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test fixture field especially relates to a middle large range current sensor high and low temperature test fixture. BACKGROUND

[0002] The current sensor high and low temperature test fixture is a kind of test equipment specially used to evaluate the performance of current sensor under extreme temperature conditions, the fixture is usually designed to adapt to different sizes and types of current sensor, with good temperature control function, ensure accurate testing of sensor in high temperature and low temperature environment, during testing process, fixture can stably fix sensor, ensure the consistency of data acquisition at various temperatures.

[0003] The fixture is equipped with data acquisition system, real-time records the output characteristics and temperature variation of current sensor, provides important basis for subsequent analysis, high and low temperature test fixture plays a vital role in the research and development and quality control of current sensor, helps to ensure the reliability and accuracy of sensor in practical application.

[0004] In the traditional test fixture, by rotating bidirectional threaded rod, two accelerations are moved towards to clamp current sensor, realize test operation, but, this rotating threaded rod clamping mode is very slow, cannot quickly clamp and release, cannot batch work, time-consuming and laborious, therefore, a middle large range current sensor high and low temperature test fixture is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a middle large range current sensor high and low temperature test fixture, aims at improving the problem of rotating threaded rod clamping mode being very slow, unable to quickly clamp and release, unable to batch work, time-consuming and laborious.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a middle large range current sensor high and low temperature test fixture, including base, the base top is fixedly connected with test table, the base interior is installed with clamping assembly, the base left and right sides are fixedly connected with two slide rods, and the slide rod outside same side is slidably connected with shift block, the right side shift block top is fixedly connected with pin one, the right side shift block top is fixedly connected with pin two, the pin two interior is fixedly connected with a plurality of electric wires, and the pin two top is installed with carding assembly;

[0007] The clamping assembly comprises a sleeve rod, a fixing bolt and a baffle, the sleeve rod is fixedly connected to the inside of the test table, a push rod is slidably connected to the inner wall of the sleeve rod, a baffle ring is fixedly connected to the rear side of the push rod, a spring is fixedly connected to the rear side of the baffle ring, connecting rods are rotatably connected to the left and right sides of the baffle ring, pull rods are rotatably connected to the outer sides of the connecting rods, a limiting rod is slidably connected to the inside of the pull rod, a hole is formed in the front side of the push rod, the fixing bolt is slidably connected to the front side of the base, and the baffle is fixedly connected to the front side of the test table.

[0008] As a further description of the above technical solution:

[0009] The combing assembly comprises a combing groove, the combing groove is fixedly connected to the top of the second pin, a top cover is rotatably connected to the top of the combing groove, two clamping hooks are fixedly connected to the rear side of the top cover, and a handle is fixedly connected between the rear sides of the two clamping hooks.

[0010] As a further description of the above technical solution:

[0011] The fixing bolt is inserted into the hole, and the top of the fixing bolt abuts against the bottom of the baffle.

[0012] As a further description of the above technical solution:

[0013] The rear end of the spring is fixedly connected to the inner wall of the base.

[0014] As a further description of the above technical solution:

[0015] The push rod is slidably connected to the inside of the front side of the base, and the limiting rod is fixedly connected to the outside of the sleeve rod.

[0016] As a further description of the above technical solution:

[0017] The pull rod is slidably connected to the inside of the base, and the pull rod is fixedly connected to the inside of the moving block.

[0018] As a further description of the above technical solution:

[0019] The wire is sleeved on the inside of the combing groove, and the clamping hooks are clamped between the inside of the clamping hooks and the rear side of the combing groove.

[0020] As a further description of the above technical solution:

[0021] The bottom of the top cover abuts against the top of the wire.

[0022] The utility model has the advantages of:

[0023] 1. In the utility model, through pushing the push rod, the blocking ring compression spring is driven, and the connecting rod pulls the pull rod to move to the inside at the same time, and the fixed peg falls automatically due to gravity and is inserted into the insertion hole, so that the current sensor can be quickly clamped for detection, and only the insertion hole needs to be pulled to release, which saves time and effort and effectively improves work efficiency.

[0024] 2. In the utility model, the electric wire is clamped in the carding groove, the top cover is clamped above the carding groove by cooperating with the clamping hook, the electric wire is carded, the electric wire is prevented from being exposed and affecting the appearance, and the electric wire is prevented from falling off due to accidental touch and affecting the test effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of a large-range current sensor high-low temperature test fixture is provided for the utility model;

[0026] Figure 2 A structure schematic view of a fixed peg of a large-range current sensor high-low temperature test fixture is provided for the utility model;

[0027] Figure 3 A structure schematic view of an insertion hole of a large-range current sensor high-low temperature test fixture is provided for the utility model;

[0028] Figure 4 A structure schematic view of a carding groove of a large-range current sensor high-low temperature test fixture is provided for the utility model;

[0029] Figure 5 A structure schematic view of a clamping hook of a large-range current sensor high-low temperature test fixture is provided for the utility model.

[0030] LEGEND:

[0031] 1, base; 2, test table; 3, sliding rod; 4, moving block; 5, pin one; 6, pin two; 7, sleeve rod; 8, push rod; 9, blocking ring; 10, spring; 11, connecting rod; 12, pull rod; 13, limiting rod; 14, insertion hole; 15, fixed peg; 16, baffle; 17, carding groove; 18, top cover; 19, clamping hook; 20, handle; 21, electric wire. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] REFERENCEFigure 1 Figure 5 The utility model provides a kind of embodiment provided by the utility model: a large range of current sensor high-low temperature test fixture, including base 1, base 1 top is fixedly connected with test table 2, clamping assembly is installed in base 1, base 1 left and right sides are fixedly connected with two slide bars 3, same side two slide bars 3 between outside are slidably connected with shift block 4, right side shift block 4 top is fixedly connected with pin one 5, right side shift block 4 top is fixedly connected with pin two 6, pin two 6 inside is fixedly connected with multiple electric wires 21, pin two 6 top is installed with carding component, base 1 is used to support and protect internal parts, test table 2 is to place current sensor, so that it keeps stable, slide bar 3 is used to limit the moving direction of shift block 4, ensure that shift block 4 can only move left and right, cannot move and shake randomly, shift block 4 is to support pin one 5 and pin two 6, pin one 5 and pin two 6 are to contact with the pin of current sensor, electric wire 21 is used to transport test data;

[0034] Clamping assembly includes sleeve rod 7, fixed peg 15 and baffle 16, sleeve rod 7 outside is fixedly connected in test table 2 inside, sleeve rod 7 inner wall is slidably connected with push rod 8, push rod 8 rear side is fixedly connected with fender ring 9, fender ring 9 rear side is fixedly connected with spring 10, fender ring 9 left and right sides are rotatably connected with connecting rod 11, connecting rod 11 outside is rotatably connected with pull rod 12, pull rod 12 inside is slidably connected with limit rod 13, push rod 8 front side is provided with insertion hole 14, fixed peg 15 outside is slidably connected in base 1 front side, baffle 16 rear side is fixedly connected in test table 2 front side, sleeve rod 7 is used to limit the moving direction of push rod 8, ensure that push rod 8 can only move back and forth, cannot move and shake randomly, push rod 8 is to manually push and drive fender ring 9 to compress spring 10, fender ring 9 bears the thrust from spring 10 and drives push rod 8 to move, spring 10 is used to push fender ring 9 and make push rod 8 reset, connecting rod 11 is to drive pull rod 12 to move, pull rod 12 is used to drive shift block 4 to move left and right, limit rod 13 is to limit the movement direction of pull rod 12, ensure that pull rod 12 can only move left and right, cannot move and shake randomly, insertion hole 14 is used to cooperate with fixed peg 15, fixed peg 15 is fixed, prevent automatic reset, baffle 16 is to limit the moving distance of fixed peg 15, avoid to fall off, fixed peg 15 outside is inserted in insertion hole 14 inside, realize fixed, fixed peg 15 top and baffle 16 bottom between abut, avoid to fall off, spring 10 rear end is fixedly connected in base 1 inner wall, make spring 10 keep stable, push rod 8 outside is slidably connected in base 1 front side inside, limit the moving direction of push rod 8, limit rod 13 inside is fixedly connected in sleeve rod 7 outside, make limit rod 13 keep stable, pull rod 12 outside is slidably connected in base 1 inside, pull rod 12 outside is fixedly connected in shift block 4 inside, ensure that pull rod 12 drives shift block 4 to move synchronously.

[0035] Refer to Figure 1 Figure 5 ​​The combing assembly comprises a combing groove 17 fixedly connected at the top of the second pin 6, a top cover 18 rotatably connected at the top of the combing groove 17, two clamping hooks 19 fixedly connected at the rear side of the top cover 18, a handle 20 fixedly connected between the rear sides of the two clamping hooks 19, the combing groove 17 is used for separating the electric wires 21 to avoid mutual entanglement, the top cover 18 is used for preventing the electric wires 21 from falling off the combing groove 17, the clamping hooks 19 are used for fixing the top cover 18, and the handle 20 is used for facilitating the clamping hooks 19 to be moved to be unlocked, the electric wires 21 are sleeved on the inside of the combing groove 17 to be separated individually, and the device is both beautiful and practical, the clamping hooks 19 are clamped between the inside of the clamping hooks 19 and the rear side of the combing groove 17 to be fixed, and the top cover 18 is abutted between the bottom of the top cover 18 and the top of the electric wires 21 to keep the electric wires 21 stable.

[0036] Working principle: when the device is used, the combing groove 17 is first fixed on the second pin 6, then the handle 20 is moved to make the clamping hooks 19 separated from the combing groove 17, the top cover 18 is opened, then the electric wires 21 are put into the combing groove 17 according to the path in the combing groove 17, finally the top cover 18 is closed, the clamping hooks 19 are clamped on the combing groove 17 to be fixed, the electric wires 21 are prevented from falling off, then the current sensor is placed on the test table 2, the push rod 8 is pushed under the limiting of the sleeve rod 7 to make the blocking ring 9 compress the spring 10, at the same time, the connecting rod 11 pulls the pull rod 12 to move inward, the pull rod 12 is collected in the inside of the second pin 6, the pull rod 12 drives the moving block 4 to pull the first pin 5 and the second pin 6 to move inward to clamp the pin of the current sensor, at the same time, the fixing bolt 15 falls into the insertion hole 14 to fix the push rod 8, the device can handle the large current from dozens of amperes to thousands of amperes, clamp the pin of the sensor, increase the contact area, reduce the contact resistance, and thus can withstand the large current impact, the materials used for the clamp are high-temperature-resistant materials, the clamp can be directly placed in a high-temperature or low-temperature box for testing, and is suitable for the sensor measurement in the normal temperature, high-temperature and low-temperature environments, when the detection is completed, the fixing bolt 15 is pulled upward to be separated from the insertion hole 14, the spring 10 immediately pushes the blocking ring 9 to reset the push rod 8, under the limiting of the limiting rod 13, the connecting rod 11 pushes the pull rod 12 outward, the pull rod 12 is popped out to make the first pin 5 and the second pin 6 loose the sensor to be unlocked, the operation is time-saving and labor-saving, the device can be batch detected, and the working efficiency is effectively improved.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to some technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A high-low temperature test fixture for a middle-range current sensor, comprising a base (1), characterized in that: The base (1) top fixedly connected with test table (2), the base (1) inside mounting clamping assembly, the base (1) left and right sides are fixedly connected with two slide rods (3), the same side two slide rods (3) outside between slidingly connected with shift block (4), right side shift block (4) top fixedly connected with pin one (5), right side shift block (4) top fixedly connected with pin two (6), pin two (6) inside fixedly connected with a plurality of electric wires (21), pin two (6) top mounting carding assembly; The clamping assembly includes a sleeve rod (7), a fixed bolt (15) and a baffle (16), the sleeve rod (7) is fixedly connected inside the test table (2), the sleeve rod (7) inner wall is slidably connected with a push rod (8), the push rod (8) rear side is fixedly connected with a baffle ring (9), the baffle ring (9) rear side is fixedly connected with a spring (10), the baffle ring (9) left and right sides are rotatably connected with a connecting rod (11), the connecting rod (11) outer side is rotatably connected with a pull rod (12), the pull rod (12) inside is slidably connected with a limiting rod (13), the push rod (8) front side is provided with a insertion hole (14), the fixed bolt (15) outside is slidably connected in front of the base (1), the baffle (16) rear side is fixedly connected in front of the test table (2).

2. The high and low temperature test fixture for a wide-range current sensor according to claim 1, characterized in that: The carding assembly includes a carding groove (17), the carding groove (17) bottom is fixedly connected in the top of pin two (6), the carding groove (17) top is rotatably connected with a top cover (18), the top cover (18) rear side is fixedly connected with two hooks (19), two hooks (19) rear side is fixedly connected with a handle (20).

3. The high and low temperature test fixture for a wide-range current sensor according to claim 1, characterized in that: The fixed bolt (15) is inserted into the insertion hole (14), and the fixed bolt (15) top and the baffle (16) bottom abut.

4. The high and low temperature test fixture for a wide-range current sensor according to claim 1, characterized in that: The spring (10) rear end is fixedly connected to the inner wall of the base (1).

5. The high and low temperature test fixture for a wide-range current sensor according to claim 1, characterized in that: The push rod (8) is slidably connected outside the front side of the base (1), and the limiting rod (13) is fixedly connected inside the sleeve rod (7).

6. The high and low temperature test fixture for a wide-range current sensor according to claim 1, characterized in that: The pull rod (12) is slidably connected inside the base (1), and the pull rod (12) is fixedly connected inside the shift block (4).

7. The high and low temperature test fixture for a wide-range current sensor according to claim 2, characterized in that: The electric wire (21) is externally sleeved in the carding groove (17), and the hook (19) is engaged between the inside and the rear side of the carding groove (17).

8. The high and low temperature test fixture for a wide-range current sensor according to claim 2, characterized in that: The top cover (18) bottom and the electric wire (21) top abut.

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