Device for fixing sensor in type test

Abstract

The utility model discloses a device for fixing a sensor in a type test, and belongs to the technical field of electrical equipment. The device comprises a sensor, an insulating plate and a coupler, the sensor is mounted at one end of the insulating plate and is connected with a mechanism main shaft of the ring main unit through the coupler; the other end of the insulating plate is connected with a frame of the ring main unit; the insulating plate comprises a first insulating plate; the first insulating plate is provided with a third hole; a rotating rod of the sensor penetrates through the third hole to be connected with the coupler. According to the utility model, the installation difficulty of the sensor is reduced, the risk of falling in the test process is avoided, and the initial angle of the sensor can be adjusted, so that the accuracy of the test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and particularly relates to a device for fixing a sensor in a type test. Background Art

[0002] A ring main unit is a kind of power equipment widely used in a distribution system, and its function is to perform main power distribution and distribution in an integrated power supply system such as a city. With the continuous development of urbanization and industrialization, the requirements for the reliability and quality of power supply are getting higher and higher. As an important part of traditional power equipment, the market demand for ring main units is also increasing. The national standard stipulates that when a circuit breaker undergoes a type test, the opening time and arcing time of the switch must be recorded, and the installation of a travel sensor is required for the measurement of the arcing time.

[0003] Since the current ring main unit is small in volume and compact in structure, it is rather troublesome to install the sensor during the test. If the sensor is directly connected to the main shaft of the circuit breaker mechanism by bolts without additional support, it is likely to become loose and deformed after experiencing multiple switch operations, resulting in a large deviation in waveform measurement, and further affecting the accuracy of the arcing time. At the same time, due to the long test period, there is a risk of the sensor falling off, which may cause damage to the sensor at least and lead to the failure of the test at worst. In addition, the above connection method is a "fixed" connection, and the initial angle of the sensor cannot be adjusted arbitrarily. If the angle exceeds the measurement range during installation, the measured travel curve will return to zero and there will be no further change. At this time, it is undoubtedly more troublesome to adjust the angle of the sensor.

[0004] Therefore, in the ring main unit experiment, during the installation and measurement of the sensor, there are difficulties in installation, the initial angle of the sensor cannot be adjusted arbitrarily, and there is also a risk of falling off, which affects the measurement accuracy. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art that in the ring main unit experiment, it is difficult to install the sensor, there is a risk of falling off during the test process, and the initial angle of the sensor cannot be adjusted arbitrarily, which affects the measurement accuracy. The utility model provides a device for fixing a sensor in a type test, which reduces the installation difficulty of the sensor, avoids the risk of falling off during the test process, and the initial angle of the sensor can be adjusted, thereby improving the accuracy of the test results.

[0006] In order to achieve the above object, the utility model provides the following technical solutions.

[0007] A device for fixing a sensor in a type test, comprising a sensor, an insulating plate and a coupling; the sensor is installed at one end of the insulating plate, and the sensor is connected to the mechanism main shaft of the ring main unit through the coupling; the other end of the insulating plate is connected to the frame of the ring main unit; the insulating plate includes a first insulating plate; the first insulating plate is provided with a third hole; the rotating rod of the sensor passes through the third hole and is connected to the coupling.

[0008] Preferably, the first insulating plate is provided with a first hole and a second hole; the sensor is fixed on the first insulating plate through the first hole and the second hole.

[0009] Preferably, the coupling is provided with a first setscrew; the first setscrew is used to fix the rotating rod.

[0010] Preferably, the coupling is provided with a second setscrew; the second setscrew is fixed to one end of a long screw; the other end of the long screw is connected to the mechanism main shaft of the ring main unit.

[0011] Preferably, the first insulating plate is provided with a forty-first hole and a forty-second hole; several wires of the sensor are fixed to the side of the first insulating plate through the forty-first hole and the forty-second hole.

[0012] Preferably, the first insulating plate is provided with a fifth hole; the fifth hole is arranged in the middle area of the first insulating plate; the first insulating plate is installed on the ring main unit through the fifth hole.

[0013] Preferably, the first insulating plate is provided with a sixth hole.

[0014] Preferably, the first insulating plate is connected to the frame of the ring main unit through the sixth hole.

[0015] Preferably, the insulating plate further includes a second insulating plate; the first insulating plate is connected to the second insulating plate through the sixth hole.

[0016] Preferably, the second insulating plate is provided with a seventh hole; the second insulating plate is connected to the frame of the ring main unit through the seventh hole.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model reliably connects the sensor to the mechanism main shaft of the ring main unit through a coupling. Compared with the traditional direct connection or bolt fixation, this connection method has higher stability and durability. The reliable connection ensures that the sensor will not shift or fall off during the measurement process due to vibration or external forces, thus ensuring the accuracy and reliability of the measurement data. Secondly, as a transmission component, the coupling can not only transmit torque but also effectively absorb and reduce vibration. During the type test, vibration may interfere with the measurement results, and the use of the coupling can significantly reduce such interference. The coupling can also compensate for radial, angular, and axial deviations, which is crucial for ensuring the alignment between the sensor and the mechanism main shaft. Good alignment can further improve the measurement accuracy. At the same time, the utility model allows the sensor to adjust the initial rotation angle at any time. When conducting multiple tests or comparing data under different conditions, it may be necessary to change the installation angle of the sensor. By simple adjustment without repeatedly disassembling and installing the sensor, it can greatly save time and labor costs.

[0019] Furthermore, the utility model adopts the design of multiple insulating plates. By adjusting the relative positions of the multiple insulating plates, it can adapt to the differences in the main shaft positions of ring main units from different manufacturers. This design makes the device highly flexible and adaptable, and can be widely applied to the type tests of various models of ring main units. The use of insulating plates can also effectively isolate the electrical connection between the sensor and the ring main unit, avoiding the influence of electrical interference on the measurement results. At the same time, the insulating plates also have a certain strength and stiffness, which can support and protect the sensor from being damaged during the test. Description of the Drawings

[0020] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the utility model in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic, used to assist in understanding the utility model, and do not specifically define the shapes and proportional dimensions of the components of the utility model. In the drawings:

[0021] Figure 1 is an overall schematic diagram of a device for fixing a sensor in a type test of the utility model;

[0022] Figure 2 is a side view of a device for fixing a sensor in a type test of the utility model;

[0023] Figure 3 is an installation side view of a device for fixing a sensor in a type test of the utility model;

[0024] Figure 4 is an installation front view of a device for fixing a sensor in a type test of the utility model.

[0025] In the figure, 1 is the first hole; 2 is the second hole; 3 is the third hole; 31 is the rotating rod; 41 is the forty-first hole; 42 is the forty-second hole; 5 is the fifth hole; 6 is the sixth hole; 7 is the seventh hole; 81 is the first set screw; 82 is the second set screw; 9 is the long screw; 10 is the fixing screw; 101 is the sensor; 102 is the coupling; 111 is the first insulating plate; 112 is the second insulating plate; 121 is the main shaft of the mechanism; 122 is the vacuum interrupter; 201 is the ring main unit; 202 is the frame. Specific embodiments

[0026] In order to enable those skilled in the art of the present technology to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] Aiming at the problems existing in the prior art that in the ring main unit experiment, it is difficult to install the sensor, there is a risk of falling off during the test process, and the initial angle of the sensor cannot be adjusted arbitrarily, which affects the measurement accuracy. The present invention provides a device for fixing the sensor in the type test, as Figure 1 shown, including: the sensor 101, the insulating plate and the coupling 102.

[0030] The sensor 101 is installed at one end of the insulating plate, and the sensor 101 is connected to the main shaft 121 of the mechanism of the ring main unit 201 through the coupling 102; the other end of the insulating plate is connected to the frame 202 of the ring main unit 201.

[0031] The insulating board includes a first insulating board 111 and a second insulating board 112.

[0032] The sensor 101 is installed at one end of the first insulating board 111.

[0033] At one end of the first insulating board 111, there are a first hole 1, a second hole 2 and a third hole 3. The sensor 101 is fixed in the first hole 1 and the second hole 2 by screws, and the center position of the sensor 101 is aligned with the third hole 3. The rotating rod 31 of the sensor 101 passes through the first insulating board 111 through the third hole 3, and a cable tie fixes several wires led out from the sensor 101 to the side of the first insulating board 111 through a forty-first hole 41 and a forty-second hole 42.

[0034] At the middle position of the first insulating board 111, there is a fifth hole 5. The fifth hole 5 is an elongated hole, and the screw can move freely in the fifth hole 5, which is convenient for fixing the first insulating board 111 on the ring main unit 201 according to different installation positions of the sensor 101 on the mechanism main shaft 121 in the ring main unit 201. It ensures a reliable connection between the sensor 101 and the mechanism main shaft 121, greatly improves the stability of the installation of the sensor 101, and ensures the accuracy of the test results of the sensor 101.

[0035] At the other end of the first insulating board 111, there is a sixth hole 6. The first insulating board 111 is connected to one end of the second insulating board 112 through the sixth hole 6. The first insulating board 111 and the second insulating board 112 use screws to pass through the sixth hole 6. At the other end of the second insulating board 112, there is a seventh hole 7, and the second insulating board 112 is fixed on the ring main unit 201 through the seventh hole 7.

[0036] According to the installation requirements, the second insulating board 112 can be disassembled or added.

[0037] When the second insulating board 112 is disassembled, the sixth hole 6 provided on the first insulating board 111 is directly fixed on the ring main unit 201.

[0038] As Figure 2 shown, the rotating rod 31 of the sensor 101 passes through the third hole 3 and is connected to the coupling 102. When the rotating rod 31 of the sensor 101 penetrates into the coupling 102, the rotating rod 31 is fixed by the first set screw 81 of the coupling 102.

[0039] The second set screw 82 of the coupling 102 fixes one end of the long screw 9, and the other end of the long screw 9 is connected to the mechanism main shaft 121 of the ring main unit 201. There are several vacuum interrupters 122 provided on the mechanism main shaft 121.

[0040] The coupling 102 can absorb vibrations, solving the problem of compensating for radial, angular, and axial deviations that occur when the sensor is directly connected to the mechanism main shaft by bolts. Therefore, the present utility model can improve the accuracy of arc ignition time measurement. At the same time, the sensor 101 in the present utility model can adjust the initial rotation angle at any time through the first insulating plate 111, saving the trouble of repeated installation.

[0041] As Figure 3 shown, when the other end of the long screw 9 is fixedly connected to the mechanism main shaft 121 of the ring main unit 201, at this time, adjust the angle of the first insulating plate 111, and pass the fixing screw 10 through the sixth hole 6 to fix the first insulating plate 111 at the hole position on the frame 202 of the ring main unit 201. The fixing state of the first insulating plate 111 and the ring main unit 201 is as Figure 4 shown.

[0042] After the first insulating plate 111 is installed, connect the three measurement lines of the sensor 101 to the measurement device. When the mechanism main shaft 121 makes a closing and opening movement, the mechanism main shaft 121 drives the rotating rod 31 of the sensor 101 to rotate together through the coupling 102. At this time, the resistance value inside the sensor 101 will change, and this change will be converted into an electrical signal for output, thereby collecting the stroke curve.

[0043] If the mechanism main shaft 121 is located in the middle position of the ring main unit 201, resulting in the inability to meet the installation requirements only by using the first insulating plate 111, then the second insulating plate 112 can be added. At this time, the fixing screw 10 passes through the seventh hole 6 on the second insulating plate 112 to fix the second insulating plate 112 at the hole position on the frame 202 of the ring main unit 201.

[0044] The present utility model uses several insulating plates, and through the coordinated use of several insulating plates, it can cope with the different main shaft positions of ring main units from various manufacturers.

[0045] Upon reading the above description, many embodiments and many applications beyond the provided examples will be obvious to those skilled in the art. Therefore, the scope of this teaching should not be determined with reference to the above description, but rather should be determined with reference to the full scope of the foregoing claims and the equivalents of those claims. For the sake of completeness, all articles and references, including patent applications and published announcements, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to abandon such subject matter, nor should it be considered that the applicant has not considered such subject matter as part of the disclosed utility model subject matter.

[0046] The above content is a further detailed description of the present utility model. It cannot be determined that the specific implementation of the present utility model is limited to this. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as falling within the protection scope determined by the claims submitted for the present utility model.

Claims

1. A device for fixing a sensor in a type test, characterized in that, It includes a sensor (101), an insulating plate and a coupling (102); The sensor (101) is installed at one end of the insulating plate, and the sensor (111) is connected to the mechanism main shaft (121) of the ring main unit (201) through the coupling (102); The other end of the insulating plate is connected to the frame (202) of the ring main unit (201); The insulating plate includes a first insulating plate (111); The first insulating plate (111) is provided with a third hole (3); The rotating rod (31) of the sensor (101) passes through the third hole (3) and is connected to the coupling (102).

2. The device for fixing a sensor in a type test according to claim 1, characterized in that, The first insulating plate (111) is provided with a first hole (1) and a second hole (2); The sensor (1) is fixed to the first insulating plate (111) through the first hole (1) and the second hole (2).

3. The device for fixing a sensor in a type test according to claim 1, characterized in that, The coupling (102) is provided with a first setscrew (81); The first setscrew (81) is used to fix the rotating rod (31).

4. A device for fixing a sensor in a type test according to claim 1, characterized in that, The coupling (102) is provided with a second setscrew (82); The second setscrew (82) is fixed to one end of the long screw (9); The other end of the long screw (9) is connected to the mechanism main shaft (121) of the ring main unit (201).

5. A device for fixing a sensor in a type test according to claim 1, characterized in that, The first insulating plate (111) is provided with a forty-first hole (41) and a forty-second hole (42); Several wires of the sensor (101) are fixed to the side of the first insulating plate (111) through the forty-first hole (41) and the forty-second hole (42).

6. The device for fixing a sensor in a type test according to claim 1, wherein, The first insulating plate (111) is provided with a fifth hole (5); The fifth hole (5) is set in the middle area of the first insulating plate (111); The first insulating plate (111) is installed on the ring main unit (201) through the fifth hole (5).

7. A device for fixing a sensor in a type test according to claim 1, characterized in that, The first insulating plate (111) is provided with a sixth hole (6).

8. A device for fixing a sensor in a type test according to claim 7, characterized in that, The first insulating plate (111) is connected to the frame (202) of the ring main unit (201) through the sixth hole (6).

9. The device for fixing a sensor in a type test according to claim 7, characterized in that, The insulating plate further includes a second insulating plate (112); The first insulating plate (111) is connected to the second insulating plate (112) through the sixth hole (6).

10. The device for fixing a sensor in a type test according to claim 9, characterized in that, The second insulating plate (112) is provided with a seventh hole (7); The second insulating plate (112) is connected to the frame (202) of the ring main unit (201) through the seventh hole (7).

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