CN219368980U

CN219368980U - Frequency conversion mutual inductor tester

Info

Publication number: CN219368980U
Application number: CN202223498999.6U
Authority: CN
Inventors: 杨道立; 文武; 翁应坤; 贺成飞
Original assignee: Guizhou Changzheng Transmission And Distribution Electric Co ltd
Current assignee: Guizhou Changzheng Transmission And Distribution Electric Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-07-18
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of testers, in particular to a variable frequency transformer tester which comprises a box body and a testing host arranged in the box body, wherein a temperature measuring component is further arranged on the outer wall of the box body; the temperature measuring assembly comprises a control unit and a temperature measuring component, wherein a groove I and a groove II are formed in the outer side of the box body, the design of adding a temperature sensor is adopted in the utility model, so that the use temperature of the tester is detected, the frequency conversion transformer tester can work at a preset temperature, the working stability and the detection accuracy of the frequency conversion transformer tester are ensured, and the whole rotating plate can be stored when the temperature measuring component is not used by adopting a mode of fixing the temperature sensor by the rotating plate, so that the damage or loss of the temperature measuring component is avoided, the whole structural design is simple, and the functionality of the existing frequency conversion transformer tester is optimized.

Description

Frequency conversion mutual inductor tester

Technical Field

The utility model relates to the technical field of testers, in particular to a variable frequency transformer tester.

Background

The comprehensive tester for frequency conversion transformer is designed to detect the volt-ampere characteristic, transformation ratio, polarity, demagnetization, error curve of 5% and 10%, angular difference ratio difference, primary through-flow detection and the like of CT on site, the output voltage of a single machine can reach 2500V, the current reaches 400A, the test voltage/current value is only required to be set during the experiment, the step length is not required to be set, the tester can automatically boost/boost the current, and the experimental results of volt-ampere characteristic curve or transformation ratio, polarity and the like of the transformer can be rapidly displayed,

the utility model discloses a comprehensive tester for a variable frequency transformer, which comprises a box body, a knob, a display screen and a handle, wherein the two sides of the box body are respectively fixed with a protective structure, the knob is arranged on one side of the bottom end inside the box body, the display screen is arranged on the other side of the bottom end inside the box body, a cover body is fixed on one side of a mounting plate, a heat radiation fan is movably connected inside the cover body, and heat radiation holes are formed in the two sides of the box body.

In the technical scheme, although the heat dissipation of the tester can be realized, when the tester works outdoors, the requirement on the environment is strict, and the working environment temperature of the existing tester is between about-10 ℃ and 40 ℃, so that how to determine whether the current environment temperature accords with the working of the tester is worth further exploration of the person skilled in the art.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a frequency conversion transformer tester.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the frequency conversion transformer tester comprises a box body and a testing host arranged in the box body, wherein a temperature measuring component is further arranged on the outer wall of the box body;

the temperature measuring assembly comprises a control unit and a temperature measuring part, a first groove and a second groove are formed in the outer side of the box body, the control unit is installed in the first groove, a rotating plate is rotatably connected to the opening of the second groove, a fixing part is arranged between the rotating plate and the second groove, and the temperature measuring part is installed on the rotating plate and is electrically connected with the control unit.

Further, the fixing part comprises an elastic clamp arranged on the free end of the rotating plate, a clamping groove matched with the elastic clamp is formed in the top of the second groove, and a positioning protrusion is arranged in the clamping groove.

Further, a buzzer is further arranged on the side wall of the box body, and the buzzer is electrically connected with the control unit.

Further, two groups of L-shaped sheets are arranged at the top of the rotating plate at intervals, the temperature measuring part is clamped between the two groups of L-shaped sheets, and the temperature measuring part is a temperature sensor.

Further, still there is the conflict board through spring coupling on the revolving plate, the conflict board is located two sets of between the L type piece, and the top of conflict board can with the bottom of temperature measurement part contacts.

Further, a display screen is arranged at the top of the rotating plate, and the display screen is electrically connected with the control unit and used for displaying the current ambient temperature.

Further, a cover plate is covered on the outer side of the first groove, and the cover plate is fixed with the box body through bolts.

The frequency conversion transformer tester provided by the utility model has the beneficial effects that:

according to the utility model, the design of adding the temperature sensor is adopted to realize the detection of the use temperature of the tester, so that the variable frequency transformer tester can work at a preset temperature, the working stability and the detection accuracy of the variable frequency transformer tester are ensured, and secondly, the whole rotating plate can be stored when the temperature measuring component is not used by adopting the mode of fixing the temperature sensor by the rotating plate, so that the damage or loss of the temperature measuring component is avoided, the overall structural design is simple, and the functionality of the conventional variable frequency transformer tester is optimized.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the area A of FIG. 1;

fig. 3 is a schematic view of a rotating plate structure according to the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the temperature measuring device comprises a box body 1, a first groove 11, a second groove 12, a buzzer 13, a cover plate 14, a temperature measuring component 2, a control unit 21, a temperature measuring component 22, a rotating plate 23, an elastic clamp 24, an L-shaped sheet 25, a spring 26, an abutting plate 27 and a display screen 28.

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.

Referring to fig. 1-3, a variable frequency transformer tester comprises a box body 1 and a testing host arranged in the box body 1, wherein a temperature measuring component 2 is further arranged on the outer wall of the box body 1;

the temperature measuring assembly 2 includes a control unit 21 and a temperature measuring component 22, in this embodiment, the temperature measuring component 22 is a temperature sensor, a first groove 11 and a second groove 12 are formed on the outer side of the box 1, the control unit 21 is installed in the first groove 11, an opening of the second groove 12 is rotatably connected with a rotating plate 23, a fixing component is disposed between the rotating plate 23 and the second groove 12, the temperature measuring component 22 is installed on the rotating plate 23, and the temperature measuring component 22 is electrically connected with the control unit 21.

Furthermore, in the present utility model, the fixing component includes an elastic card 24 mounted on the free end of the rotating plate 23, a clamping groove adapted to the elastic card 24 is provided at the top of the second groove 12, a positioning protrusion is provided in the clamping groove, the elastic card 24 is of the prior art, the specific structure is not described herein, and during operation, the fixing of the rotating plate 23 is achieved by the protrusion of the elastic card 24 and the positioning protrusion in the clamping groove, which aims to store the whole rotating plate 23 when the temperature measuring component 22 is used, so as to avoid damage or loss of the temperature measuring component 22.

Still further, a buzzer 13 is further disposed on a side wall of the case 1, and the buzzer 13 is electrically connected to the control unit 21, and the buzzer 13 is configured to alarm through the buzzer 13 when the detected temperature is lower than or higher than a threshold value, so as to prompt for stopping the operation in time.

In other words, in this embodiment, two sets of L-shaped pieces 25 are disposed at intervals on the top of the rotating plate 23, the L-shaped pieces 25 are elastic pieces, and a chamfer is further disposed at the free end of the L-shaped pieces 25, the temperature measuring component 22 is clamped between the two sets of L-shaped pieces 25, and the temperature measuring component 22 is fixed by adopting the design of the two sets of L-shaped pieces 25 so as to achieve detachable connection design.

Specifically, in order to facilitate protection and disassembly of the temperature sensor, the rotating plate 23 is further connected with a supporting plate 27 through a spring 26, the supporting plate 27 is located between two groups of L-shaped sheets 25, the top of the supporting plate 27 can be contacted with the bottom of the temperature measuring component 22, in the embodiment, elastic support of the temperature sensor is achieved by adopting the mode that the spring 26 is matched with the supporting plate 27, firstly, the elastic protection capability is enhanced, hard impact during transportation is avoided, and secondly, when the temperature sensor is disassembled, the temperature sensor is pushed upwards through the supporting plate 27, so that a user can take the temperature sensor conveniently.

It should be noted that, in order to further intuitively observe the detected temperature, the top of the rotating plate 23 is provided with a display screen 28, and the display screen 28 is electrically connected with the control unit 21 for displaying the current ambient temperature.

Moreover, the outer side of the first groove 11 is covered with the cover plate 14, the cover plate 14 is fixed with the box body 1 through bolts, and the cover plate 14 is designed to cover the control unit 21, and meanwhile, when the control unit 21 needs to be overhauled later, the cover plate 14 can be disassembled conveniently, so that the internal overhauling is realized.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a frequency conversion mutual-inductor tester, includes box (1) and arranges the test host computer in this box (1), its characterized in that: the outer wall of the box body (1) is also provided with a temperature measuring component (2);

the temperature measuring assembly (2) comprises a control unit (21) and a temperature measuring component (22), a first groove (11) and a second groove (12) are formed in the outer side of the box body (1), the control unit (21) is installed in the first groove (11), a rotating plate (23) is rotatably connected to the opening of the second groove (12), a fixing component is arranged between the rotating plate (23) and the second groove (12), and the temperature measuring component (22) is installed on the rotating plate (23), and the temperature measuring component (22) is electrically connected with the control unit (21).

2. The variable frequency transformer tester according to claim 1, wherein: the fixing part comprises an elastic clamp (24) arranged on the free end of the rotating plate (23), a clamping groove matched with the elastic clamp (24) is formed in the top of the second groove (12), and a positioning protrusion is arranged in the clamping groove.

3. The variable frequency transformer tester according to claim 1, wherein: a buzzer (13) is further arranged on the side wall of the box body (1), and the buzzer (13) is electrically connected with the control unit (21).

4. The variable frequency transformer tester according to claim 1, wherein: two groups of L-shaped sheets (25) are arranged at the top of the rotating plate (23) at intervals, the temperature measuring component (22) is clamped between the two groups of L-shaped sheets (25), and the temperature measuring component (22) is a temperature sensor.

5. The variable frequency transformer tester according to claim 4, wherein: the rotating plate (23) is also connected with a supporting plate (27) through a spring (26), the supporting plate (27) is positioned between the two groups of L-shaped sheets (25), and the top of the supporting plate (27) can be contacted with the bottom of the temperature measuring part (22).

6. The variable frequency transformer tester according to claim 4, wherein: the top of the rotating plate (23) is provided with a display screen (28), and the display screen (28) is electrically connected with the control unit (21) and used for displaying the current ambient temperature.

7. The variable frequency transformer tester according to claim 4, wherein: the outer side of the first groove (11) is covered with a cover plate (14), and the cover plate (14) is fixed with the box body (1) through bolts.