Quick verification tool for magnetic core of open-loop Hall current sensor

Abstract

The utility model belongs to the technical field of open-loop Hall current sensor detection, and particularly relates to an open-loop Hall current sensor magnetic core quick verification tool which comprises a tool shell provided with a Hall sensor, and a movable shell is arranged on the surface of one side of the tool shell. A groove used for containing a magnetic core is formed in the surface of the tool shell in a penetrating mode, a clamping mechanism is arranged on the inner wall of the groove and comprises clamping plates distributed in a bilateral symmetry mode, and the magnetic core is clamped through relative movement of the two clamping plates. According to the quick verification tool for the magnetic core of the open-loop Hall current sensor, the clamping mechanism is arranged, two clamping plates are driven by rotation of a bidirectional lead screw to move relatively, and the magnetic core placed in a groove is clamped conveniently, so that the magnetic core is prevented from moving in the testing process, and the testing result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to open loop hall current sensor detection technical field especially relates to a kind of open loop hall current sensor magnetic core rapid verification frock. BACKGROUND

[0002] Open loop hall current sensor is a kind of sensor for detecting current size on automobile, open loop hall current sensor is usually composed of magnetic core, hall element and amplifier circuit.Magnetic core has an open air gap, hall element is placed at air gap.When external conductor flows through current, the magnetic field intensity around conductor is proportional to the magnetic field of current size, magnetic core gathers magnetic line to air gap, hall element outputs voltage signal proportional to the magnetic induction intensity at air gap, amplifier circuit amplifies the signal and outputs.

[0003] The Chinese patent with the authorization announcement number CN221841109U discloses a kind of open loop hall current sensor magnetic core rapid verification frock, including frock shell, the inside of the frock shell is provided with magnetic core installation groove, the bottom of the magnetic core installation groove is connected with PCBA module installation groove.The open loop hall current sensor magnetic core rapid verification frock provided by the utility model can be positioned and installed magnetic core in the magnetic core installation groove in the front of frock shell, can be placed into corresponding PCBA module according to different test needs in the PCBA module installation groove in the back of frock shell, then the copper bar that needs to be tested is inserted into magnetic core interior, and verification can be started, the scheme, magnetic core verification cost is lower, and magnetic core verification efficiency is higher.

[0004] But the frock shell in the above-mentioned patent can only place magnetic core, and cannot clamp magnetic core, so that magnetic core is easily moved during testing, and the accuracy of test result is reduced. UTILITY MODEL CONTENT

[0005] Based on the above-mentioned technical problems of the prior art, the utility model provides an open loop hall current sensor magnetic core rapid verification frock.

[0006] The utility model provides an open loop hall current sensor magnetic core rapid verification frock, including the frock shell of hall sensor installation, the side surface of the frock shell is provided with mobile shell, adjusting mechanism is arranged between the frock shell and the mobile shell, and the adjusting mechanism includes telescopic scissor holder.

[0007] The surface of the frock shell is penetrated and is provided with recess for placing magnetic core, the inner wall of the recess is provided with clamping mechanism, the clamping mechanism includes the clamping plate that is symmetrically distributed and arranged left and right, and magnetic core is clamped by the relative movement of two clamping plates.

[0008] Preferably, the adjusting mechanism further comprises two hinged seats and two concave seats symmetrically arranged on opposite side surfaces of the tool shell and the moving shell, the surfaces of the four hinged seats are hingedly connected with fixed rods, the surfaces of the four concave seats are provided with sliding grooves, the inner walls of the sliding grooves are slidingly connected with sliding rods, and the two ends of the two fixed rods and the two sliding rods are hingedly connected with the two telescopic scissor frames.

[0009] By the movement of the sliding rods in the sliding grooves, the telescopic scissor frames are driven to be telescoped, so that the distance between the tool shell and the moving shell is adjusted.

[0010] Preferably, a push cylinder is fixedly arranged on the side surface of the tool shell close to the telescopic scissor frame, and the piston rod of the push cylinder is fixedly connected with the surface of the sliding rod.

[0011] By the telescoping of the piston rod of the push cylinder, the sliding rod connected with the piston rod is driven to move along the inner wall of the sliding groove.

[0012] Preferably, the surface of the moving shell is provided with a mounting groove for mounting a permanent magnet.

[0013] The above technical scheme facilitates the mounting of the permanent magnet, and cooperates with the adjusting mechanism to adjust the distance between the permanent magnet and the magnetic core.

[0014] Preferably, the clamping mechanism further comprises a cavity arranged in the top wall of the groove, a double-threaded screw is arranged on the inner wall of the cavity through a bearing, the inner walls of the two clamping plates are threadedly connected with the surface of the double-threaded screw, and the surface of the clamping plate is slidingly connected with the inner wall of the cavity.

[0015] By the rotation of the double-threaded screw, the two clamping plates connected with the double-threaded screw are driven to relatively move along the inner wall of the cavity.

[0016] Preferably, a driving motor is fixedly arranged on the side surface of the tool shell, and the output shaft of the driving motor is fixedly connected with one end of the double-threaded screw through a rotating shaft.

[0017] By the rotation of the output shaft of the driving motor, the rotating shaft connected with the output shaft is driven to rotate, and the rotation of the rotating shaft drives the double-threaded screw to rotate.

[0018] Preferably, an infrared sensor is fixedly arranged on the side surface of the tool shell close to the telescopic scissor frame.

[0019] The above technical scheme facilitates the mounting of the permanent magnet, and cooperates with the adjusting mechanism to adjust the distance between the permanent magnet and the magnetic core.

[0020] The utility model discloses a beneficial effect for:

[0021] 1. By setting the adjusting mechanism, the telescopic scissors frame is driven to stretch out and draw back by the telescopic push cylinder piston rod, the distance between the permanent magnet and the magnetic core is adjusted, and the magnetic field is adjusted.

[0022] 2. By setting the clamping mechanism, the two clamping plates are driven to move relatively by the rotation of the bidirectional screw rod, the magnetic core placed in the groove is clamped, the movement of the magnetic core in the test process is prevented, and the test result is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A schematic view of the open loop hall current sensor magnetic core quick verification tool is provided for the utility model;

[0024] Figure 2 A telescopic scissors frame structure perspective view of the open loop hall current sensor magnetic core quick verification tool is provided for the utility model;

[0025] Figure 3 A tool shell structure perspective view of the open loop hall current sensor magnetic core quick verification tool is provided for the utility model;

[0026] Figure 4 A bidirectional screw rod structure perspective view of the open loop hall current sensor magnetic core quick verification tool is provided for the utility model.

[0027] In the drawing: 1, tool shell; 2, moving shell; 3, telescopic scissors frame; 31, hinged seat; 32, concave seat; 33, fixed rod; 34, sliding groove; 35, sliding rod; 36, push cylinder; 4, recess; 5, clamping plate; 51, cavity; 52, bidirectional screw rod; 53, driving motor; 54, rotating shaft; 6, mounting groove; 7, infrared sensor. DETAILED DESCRIPTION

[0028] The technical scheme 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, not all the embodiments.

[0029] REFER Figures 1-4 An open loop hall current sensor magnetic core quick verification tool, including the tool shell of installing hall sensor 1, the surface of one side of tool shell 1 is provided with moving shell 2, and the adjusting mechanism is arranged between tool shell 1 and moving shell 2, the adjusting mechanism includes telescopic scissors frame 3, and the distance between tool shell 1 and moving shell 2 is adjusted by the telescopic adjustment of telescopic scissors frame 3.

[0030] In order to drive the telescopic shears frame 3 to be telescopic, the adjusting mechanism further comprises two hinged seats 31 and two concave seats 32 symmetrically arranged on the opposite side surfaces of the tool shell 1 and the moving shell 2, the surfaces of the four hinged seats 31 are hingedly connected with fixed rods 33, the surfaces of the four concave seats 32 are provided with sliding grooves 34, the inner walls of the sliding grooves 34 are slidably connected with sliding rods 35, and the two ends of the two fixed rods 33 and the two sliding rods 35 are respectively hingedly connected with the two telescopic shears frames 3, so that the telescopic shears frame 3 is driven to be telescopic by the movement of the sliding rod 35 in the sliding groove 34, thereby adjusting the distance between the tool shell 1 and the moving shell 2.

[0031] In order to drive the sliding rod 35 to move, a push cylinder 36 is fixedly arranged on the side surface of the tool shell 1 close to the telescopic shears frame 3, one end of the piston rod of the push cylinder 36 is fixedly connected with the surface of the sliding rod 35, and the sliding rod 35 connected with the piston rod of the push cylinder 36 is driven to move along the inner wall of the sliding groove 34 by the telescopic movement of the piston rod.

[0032] In order to adjust the magnetic field, the surface of the moving shell 2 is provided with a mounting groove 6 for mounting a permanent magnet, which is convenient for mounting the permanent magnet and adjusting the distance between the permanent magnet and the magnetic core in cooperation with the adjusting mechanism.

[0033] In order to measure the distance, an infrared sensor 7 is fixedly arranged on the side surface of the tool shell 1 close to the telescopic shears frame 3, the infrared sensor 7 emits an infrared light beam, and the distance between the tool shell 1 and the moving shell 2 is calculated by measuring the intensity or phase change of the reflected light beam.

[0034] By arranging the adjusting mechanism, the telescopic shears frame 3 is driven to be telescopic by the telescopic movement of the piston rod of the push cylinder 36, the distance between the permanent magnet and the magnetic core is adjusted, and the magnetic field is adjusted.

[0035] The surface of the tool shell 1 is provided with a recess 4 for placing the magnetic core, and the inner wall of the recess 4 is provided with a clamping mechanism, which comprises two clamping plates 5 arranged symmetrically left and right, and the magnetic core is clamped by the relative movement of the two clamping plates 5.

[0036] In order to drive the clamping plate to move, the clamping mechanism further comprises a cavity 51 arranged in the top wall of the recess 4, a double-threaded screw 52 is arranged on the inner wall of the cavity 51 through a bearing, the inner walls of the two clamping plates 5 are threadedly connected with the surface of the double-threaded screw 52, the surfaces of the clamping plates 5 are slidably connected with the inner wall of the cavity 51, and the two clamping plates 5 connected with the double-threaded screw 52 are driven to move relative to each other along the inner wall of the cavity 51 by the rotation of the double-threaded screw 52.

[0037] In order to drive the bidirectional screw rod 52 to rotate, the driving motor 53 is fixedly installed on the side surface of the tool shell 1, one end of the output shaft of the driving motor 53 is fixedly sleeved with the one end of the bidirectional screw rod 52 through the rotating shaft 54, the rotating shaft 54 is driven to rotate through the rotation of the output shaft of the driving motor 53, and the bidirectional screw rod 52 is driven to rotate through the rotation of the rotating shaft 54.

[0038] By arranging the clamping mechanism, the two clamping plates 5 are driven to relatively move through the rotation of the bidirectional screw rod 52, the magnetic core placed in the groove 4 is clamped, the movement of the magnetic core in the testing process is prevented, and the testing result is improved.

[0039] Working principle: when in use, the magnetic core is placed in the groove 4 of the tool shell 1, the driving motor 53 is started, the rotating shaft 54 connected with the output shaft of the driving motor 53 is driven to rotate through the rotation of the output shaft of the driving motor 53, the bidirectional screw rod 52 is driven to rotate through the rotation of the rotating shaft 54, and the two clamping plates 5 connected with the bidirectional screw rod 52 are driven to relatively move along the inner wall of the cavity 51 through the rotation of the bidirectional screw rod 52, so that the two clamping plates 5 are close to each other and clamp the magnetic core.

[0040] According to the distance between the permanent magnet and the magnetic core, the push air cylinder 36 is started, the sliding rod 35 connected with the piston rod of the push air cylinder 36 is driven to move along the inner wall of the sliding groove 34 through the extension and retraction of the piston rod, the telescopic scissor frame 3 is driven to extend and retract through the movement of the sliding rod 35, so that the distance between the tool shell 1 and the moving shell 2 is adjusted, the infrared sensor 7 measures the distance, the permanent magnet and the magnetic core generate a magnetic field with a predetermined strength, the Hall sensor detects the response of the magnetic core in the magnetic field, and outputs a Hall voltage signal.

[0041] The above merely describes a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model makes equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A quick verification tool for open-loop Hall current sensor magnetic core, comprising a tool shell (1) mounted with a Hall sensor, characterized in that: One side surface of the tool shell (1) is provided with a moving shell (2), an adjusting mechanism is arranged between the tool shell (1) and the moving shell (2), the adjusting mechanism comprises telescopic scissors frames (3), the distance between the tool shell (1) and the moving shell (2) is adjusted through telescopic adjustment of the telescopic scissors frames (3); A groove (4) for placing a magnetic core is arranged through the surface of the tool shell (1), the inner wall of the groove (4) is provided with a clamping mechanism, the clamping mechanism comprises left and right symmetrically arranged clamping plates (5), the magnetic core is clamped through the relative movement of the two clamping plates (5).

2. The open-loop Hall current sensor core quick verification fixture of claim 1, wherein: The adjusting mechanism further comprises two hinged seats (31) and two concave seats (32) symmetrically arranged on the opposite side surfaces of the tool shell (1) and the moving shell (2), the surfaces of the four hinged seats (31) are hinged with fixed rods (33), the surfaces of the four concave seats (32) are throughly provided with sliding grooves (34), the inner walls of the sliding grooves (34) are slidably connected with sliding rods (35), and the two ends of the two fixed rods (33) and the two sliding rods (35) are respectively hinged with the two telescopic scissors frames (3).

3. The open-loop Hall current sensor core quick verification fixture of claim 2, wherein: The tool shell (1) is fixedly installed with a push air cylinder (36) on the side surface close to the telescopic scissors frame (3), and the piston rod of the push air cylinder (36) is fixedly connected with the surface of the sliding rod (35).

4. The open-loop Hall current sensor core quick verification fixture of claim 1, wherein: The surface of the moving shell (2) is throughly provided with a mounting groove (6) for mounting a permanent magnet.

5. The open-loop Hall current sensor core quick verification fixture of claim 1, wherein: The clamping mechanism further comprises a cavity (51) arranged in the inner top wall of the groove (4), the inner wall of the cavity (51) is provided with a bidirectional screw rod (52) through a bearing, the inner walls of the two clamping plates (5) are threadedly connected with the surface of the bidirectional screw rod (52), and the surface of the clamping plate (5) is slidably connected with the inner wall of the cavity (51).

6. The open-loop Hall current sensor core quick verification fixture of claim 5, wherein: The tool shell (1) is fixedly installed with a driving motor (53) on the side surface, and the output shaft of the driving motor (53) is fixedly connected with one end of the bidirectional screw rod (52) through a rotating shaft (54).

7. The open-loop Hall current sensor core quick verification fixture of claim 1, wherein: The tool shell (1) is fixedly installed with an infrared sensor (7) on the side surface close to the telescopic scissors frame (3).

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