CN220752214U

CN220752214U - Testing arrangement with location structure

Info

Publication number: CN220752214U
Application number: CN202322419150.3U
Authority: CN
Inventors: 杭洋; 高玉荣
Original assignee: Nanjing Xinyue Electronic Technology Co ltd
Current assignee: Nanjing Xinyue Electronic Technology Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-04-09
Anticipated expiration: 2033-09-06

Abstract

The utility model relates to the technical field of testing devices and discloses a testing device with a positioning structure, which comprises a sensor, wherein the sensor is movably connected with a fixed table, the fixed table is movably connected with a buckle, the buckle is movably connected with a fixed plate, the fixed plate is movably connected with the fixed table through the buckle, the buckle is fixedly connected with a support frame, the support frame is sleeved on the fixed plate, the fixed plate is fixedly connected with a stretching table, the stretching table is movably connected with a workbench, the workbench is fixedly connected with a universal meter, the universal meter is fixedly connected with a connecting table, the connecting table is fixedly connected with a supporting column, a rotating column is arranged in the supporting column, the rotating column is fixedly connected with a connecting support, the connecting support is fixedly connected with a receiver, the position of the receiver is enabled to be more flexible, and the position of the fixed table can be adjusted for the sensors with different lengths through adding the fixed plate and the buckle.

Description

Testing arrangement with location structure

Technical Field

The utility model relates to the technical field of testing devices, in particular to a testing device with a positioning structure.

Background

A hall current sensor is a sensor for measuring current. It uses the hall effect principle that when a current is passed through a conductor, a magnetic field is formed perpendicular to the direction of the current. The hall current sensor senses the magnetic field by using a hall element and converts the magnetic field into an electric signal which is directly proportional to the current. Non-contact measurement: one of the advantages of hall current sensors is that a contactless current measurement can be performed. This means that there is no need to directly contact the cable or wire under test, reducing the safety risk and impact on the circuit under test during the measurement process, high precision: the hall current sensor can provide higher measurement accuracy. They generally have low distortion and high linearity, can accurately measure the magnitude of current, and have a wide measurement range: hall current sensors can cover a wide current range. The optional current measurement range of the sensors with different types is different from a few milliamperes to a few kiloamperes, so that the requirements of different application scenes are met. Small and convenient: because of the adoption of integrated design and modern manufacturing technology, hall current sensors are generally compact and easy to install and integrate into various devices. Low power consumption: hall current sensors generally have low power consumption characteristics that make them suitable for applications that require long term stable operation or use of battery power. The Hall current sensor is widely applied to the fields of power systems, electric vehicles, industrial automation and the like. In the power system, the system can be used for electric energy metering, overload protection and fault detection; in the field of electric vehicles, it can be used for battery management systems and motor control; in industrial automation, it can be used for current monitoring and control. In general, the hall current sensor has the advantages of high precision, non-contact measurement, wide measurement range and the like, is suitable for various current measurement scenes, plays an important role in the fields of electric power, automobiles, industry and the like, and is also a problem for better application of the hall current sensor to detect whether the sensor normally needs to accurately fix the position of the sensor.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a testing device with a positioning structure.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a testing arrangement with location structure, includes the sensor, sensor swing joint has the fixed station, fixed station swing joint has the buckle, buckle swing joint has the fixed plate, the fixed plate passes through buckle swing joint on the fixed station, buckle fixedly connected with support frame, the support frame cup joints on the fixed plate, support frame swing joint is on the fixed station, fixed plate fixedly connected with stretching table, stretching table swing joint has the workstation, workstation fixedly connected with universal meter, universal meter fixedly connected with connection board, connection board fixedly connected with support column, be provided with the column spinner in the support column, column spinner fixedly connected with linking bridge, the linking bridge passes through the column spinner to be connected on the support column, linking bridge fixedly connected with receiver, receiver and sensor swing joint, fixedly connected with knob switch on the universal meter, universal meter fixedly connected with display, display one side is provided with current interface, and current interface and universal meter electric connection, workstation fixedly connected with bracing piece, be provided with column, be provided with the column spinner fixedly connected with.

Preferably, the fixing plate is composed of a space of five millimeters, and the width of the supporting frame is four millimeters.

Preferably, the two holes of the current interface are the same size.

Preferably, the number of the buckles is eight, and the buckles are arranged on two sides of the fixed table.

Preferably, the number of the fixing tables is three, and the fixing tables are provided with position grooves for placing the sensors.

Preferably, the connecting bracket is parallel to the workbench and perpendicular to the support column.

(III) beneficial effects

Compared with the prior art, the utility model provides a testing device with a positioning structure, which has the following beneficial effects:

1. the test device with the positioning structure can adjust the positions of the fixing tables for sensors with different lengths by adding the fixing plates and the buckles.

2. According to the testing device with the positioning structure, the position of the receiver is adjusted by adding the rotating column and the supporting column, so that the position of the receiver is more flexible.

3. According to the testing device with the positioning structure, the metal net is added, and the metal net workbench prevents interference of a magnetic field.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a front view of a test apparatus with a positioning structure;

FIG. 2 is a schematic top view of a test apparatus with a positioning structure;

FIG. 3 is a schematic cross-sectional view of a test device connection structure with a positioning structure;

FIG. 4 is an enlarged view of a test device A with a positioning structure;

FIG. 5 is a schematic side view of a test device with a positioning structure.

In the figure: 1. a sensor; 2. a multimeter; 3. a receiver; 4. a fixing plate; 5. a fixed table; 6. a connection station; 7. a knob switch; 8. a connecting bracket; 9. a spin column; 10. a support column; 11. a stretching table; 12. a buckle; 13. a display; 14. a support frame; 15. a current interface; 16. a metal mesh; 17. a work table; 18. and (5) supporting the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1-5, the utility model provides a testing device with a positioning structure, which comprises a sensor 1, wherein the sensor 1 is movably connected with a fixed table 5, three fixed tables 5 are arranged, the fixed table 5 is provided with position grooves for placing the sensor 1, the fixed table 5 is movably connected with a buckle 12, the buckle 12 is movably connected with a fixed plate 4, the fixed plate 4 is clamped on the fixed table 5 through the buckle 12, the fixed plate 4 consists of a blank with the width of five millimeters, a supporting frame 14 is four millimeters, the buckle 12 is clamped with a supporting frame 14, the supporting frame 14 is sheathed on the fixed plate 4, the supporting frame 14 is movably connected on the fixed table 5, the fixed plate 4 is welded with a stretching table 11, the stretching table 11 is movably connected with a workbench 17, the workbench 17 is connected with a universal meter 2 through bolts, the universal meter 2 welding has connection board 6, connection board 6 bolted connection has support column 10, the column spinner 9 has been cup jointed in the support column 10, the column spinner 9 welding has linking bridge 8, linking bridge 8 is L, linking bridge 8 passes through column spinner 9 rotation to be connected on the support column 10, linking bridge 8 is on a parallel with workstation 17 and perpendicular to support column 10, linking bridge 8 joint has receiver 3, receiver 3 and sensor 1 swing joint, fixedly connected with rotary switch 7 on the universal meter 2, universal meter 2 bolted connection has display 13, display 13 one side is provided with current interface 15, and current interface 15 and universal meter 2 electric connection, two hole sizes of current interface 15 are the same, workstation 17 bolted connection has bracing piece 18, bracing piece 18 bolted connection has metal mesh 16.

In this embodiment, the position of the fixing table 5 is adjusted by adding the fixing plate 4 and the buckle 12, so that the positions of the receivers 3 can be adjusted for the sensors 1 with different lengths, the positions of the receivers 3 can be more flexibly adjusted by adding the rotary columns 9 and the support columns 10, and the magnetic field interference can be prevented by adding the metal net 16 and the workbench 17.

The working principle of the test device with the positioning structure is specifically described below.

As shown in fig. 1-5, the connection circuit: the current source is connected with the input end of the Hall current sensor 1, so that firm and reliable connection is ensured. Meanwhile, the output end of the Hall current sensor 1 is connected with the digital multimeter 2 so as to measure an output signal and set a current source: the output current of the current source is set according to the requirement, and the output current is ensured to be in a required range. Measuring output voltage: after the current source is turned on to stabilize its output, the output voltage of the hall current sensor 1 is measured using the digital multimeter 2. The direct voltage gear or the alternating voltage gear can be selected for measurement according to the requirements. Recording a test result: and recording the output voltage obtained by measurement, carrying out measurement for a plurality of times according to the requirement, and taking the average value as a final result to influence the test result. Meanwhile, to ensure the circuit connection to be correct, the inaccurate test result caused by poor contact or wiring error is avoided, and besides the basic test method, other tests such as the sensitivity, the linearity, the temperature characteristic and the like of the Hall current sensor 1 can be performed according to specific requirements. For the sensitivity test, the sensitivity of the sensor 1 can be evaluated by varying the input current magnitude, measuring the change in output voltage. For linearity test, the linearity of the sensor 1 can be evaluated for temperature characteristic test by measuring output voltages at different currents and then drawing current-voltage curves, measurement can be performed at different temperatures, and then the change condition of the output voltages is analyzed, and electromagnetic shielding is generally realized by adopting a well-grounded metal net 16, so that not only can external electromagnetic field interference be prevented, but also interference of electromagnetic field radiation per se to the outside can be prevented.

Claims

1. Test device with location structure, including sensor (1), its characterized in that: sensor (1) swing joint has fixed station (5), fixed station (5) swing joint has buckle (12), buckle (12) swing joint has fixed plate (4), fixed plate (4) pass through buckle (12) swing joint on fixed station (5), buckle (12) fixedly connected with support frame (14), support frame (14) cup joint on fixed plate (4), support frame (14) swing joint is on fixed station (5), fixed plate (4) fixedly connected with tensile platform (11), tensile platform (11) swing joint has workstation (17), workstation (17) fixedly connected with universal meter (2), universal meter (2) fixedly connected with connection platform (6), connection platform (6) fixedly connected with support column (10), be provided with column (9) in support column (10), column (9) fixedly connected with linking bridge (8), linking bridge (8) pass through column (9) rotation and connect on support column (10), linking bridge (8) fixedly connected with sensor (3) and receiver (3), fixedly connected with rotary switch (7) on universal meter (2), universal meter (2) fixedly connected with display (13), display (13) one side is provided with current interface (15), and current interface (15) and universal meter (2) electric connection, workstation (17) fixedly connected with bracing piece (18), bracing piece (18) fixedly connected with metal mesh (16).

2. A test device with positioning structure according to claim 1, characterized in that: the fixing plate (4) is composed of a space of five millimeters, and the width of the supporting frame (14) is four millimeters.

3. A test device with positioning structure according to claim 1, characterized in that: the two holes of the current interface (15) are the same size.

4. A test device with positioning structure according to claim 1, characterized in that: eight buckles (12) are arranged on two sides of the fixed table (5).

5. A test device with positioning structure according to claim 1, characterized in that: the number of the fixing tables (5) is three, and the fixing tables (5) are provided with position grooves for placing the sensors (1).

6. A test device with positioning structure according to claim 1, characterized in that: the connecting bracket (8) is parallel to the workbench (17) and perpendicular to the support column (10).