Power transformer convenient to maintain

Abstract

The utility model discloses a power transformer convenient to maintain, and relates to the technical field of transformers. A mounting plate is fixedly connected to the interior of the bearing box; an air extracting pump is mounted at the top of the mounting plate; an air suction pipe is fixedly connected to the side surface of the air extracting pump; a valve is fixedly connected to the bottom of the air suction pipe; the bottom of the elastic ring is fixedly connected with a sucker. The vacuum adsorption device composed of the air pump, the air suction pipe, the suction cup and the like is utilized, atmospheric pressure serves as acting force, a certain amount of gas molecules are pumped out through the air pump to reduce pressure in a closed volume formed between the suction cup and the installation face, pressure difference is formed inside and outside the suction cup, and adsorption and fixation are conducted under the action of the pressure difference. The device has the characteristics of stable suction, small volume, simple structure, convenience in installation, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of mutual inductors, and in particular relates to a power mutual inductor which is easy to maintain. Background Art

[0002] The mutual inductor, also known as the instrument transformer, is a general term for current transformers and voltage transformers. It can convert high voltage into low voltage and large current into small current, thus facilitating the standardization of measuring instruments, protection equipment and automatic control equipment.

[0003] The Chinese authorized announcement number CN217085074U is a power transformer that is easy to maintain. By pressing a pressing block and a sleeve, in conjunction with a movable rod and a reset spring, the staff can separate the base and the transformer body by pressing, thereby achieving the purpose of disassembling the transformer body and facilitating the staff to maintain it. By fixing the plug board and the slot, the transformer body can be fixed on the outside of the base by plugging. However, this patent still has certain shortcomings when used. When used, this patent fixes the power transformer by pressing a pressing block and a sleeve and cooperating with a movable rod and a reset spring. The pressing block and the sleeve may cause rupture at the indentation or become brittle due to hardening. It is also possible that the sleeve at the indentation is too thin and may be broken at the indentation when stretched. The greater the deformation of the reset spring during work, the greater the compression ratio, the lower its service life. If the compression ratio is too small, the reset force provided is insufficient, and it is difficult to complete the reset work. In addition, the transformer has no anti-interference effect, thereby reducing the practicality of the power transformer in use, installation, and maintenance. Therefore, we propose a power transformer that is easy to maintain. Utility Model Content

[0004] The utility model aims to provide a power transformer that is easy to maintain, so as to solve the existing problem: a power transformer that is easy to maintain and has a publication number of CN217085074U authorized by China is used to fix the power transformer by pressing a block and a sleeve and cooperating with a movable rod and a reset spring. The pressing block and the sleeve may cause rupture at the indentation or become brittle due to hardening. The sleeve may also be too thin at the indentation and may be broken at the indentation when stretched. The greater the deformation of the reset spring during work, the greater the compression ratio, and the lower its service life. If the compression ratio is too small, the reset force provided is insufficient, and it is difficult to complete the reset work. In addition, the transformer has no anti-interference effect, thereby reducing the practicability of the power transformer in use, installation and maintenance.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an electric transformer which is easy to maintain, comprising a carrying box, wherein a mounting plate is fixedly connected to the interior of the carrying box, a vacuum pump is installed on the top of the mounting plate, a suction pipe is fixedly connected to the side of the vacuum pump, a valve is fixedly connected to the bottom of the suction pipe, a telescopic rod is fixedly connected to the bottom of the valve, an elastic ring is fixedly connected to the bottom of the telescopic rod, and a suction cup is fixedly connected to the bottom of the elastic ring.

[0007] Furthermore, an exhaust pipe is fixedly connected to the side of the air pump, and a sensor is fixedly connected to the top of the air pump.

[0008] Furthermore, a ventilation window is provided on the side of the carrier box, and a metal mesh is installed on the outer side of the ventilation window.

[0009] Furthermore, a transformer housing is fixedly connected to the top of the carrying box, and an anti-interference magnetic ring is fixedly connected to the interior of the transformer housing.

[0010] Furthermore, a wire group is fixedly connected inside the anti-interference magnetic ring, and a plurality of wire groups are provided, and an iron core is fixedly connected inside the wire group.

[0011] Furthermore, a bracket is fixedly connected to the bottom of the transformer housing, a mounting hole is provided at the bottom of the bracket, and a plurality of mounting holes are provided.

[0012] Furthermore, a fan-shaped plate is fixedly connected to the top of the transformer housing, and a plurality of fan-shaped plates are provided.

[0013] Furthermore, an integrated block is fixedly connected to the top of the sector plate, and a wiring terminal is fixedly connected to the top of the integrated block.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model uses a vacuum adsorption device composed of an air pump, an air suction pipe, a suction cup, etc., and uses atmospheric pressure as a force to form a closed volume between the suction cup and the installation surface. A certain amount of gas molecules are extracted by the air pump to reduce the pressure, so that a pressure difference is formed inside and outside the suction cup. Adsorption and fixation are carried out under the action of this pressure difference. The utility model has the characteristics of stable suction, small size, simple structure, easy installation, and long service life.

[0016] 2. The utility model uses anti-interference magnetic rings, also known as EMI absorption magnetic rings, and magnetic beads to suppress EMI interference on multi-strand cables, including noise and spike interference on power lines, so that electronic equipment meets the corresponding international standards for electromagnetic compatibility and electrostatic discharge. The anti-interference magnetic rings reduce external interference on signal lines, improve the quality and stability of signal transmission, and save equipment maintenance and replacement costs.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the vacuum adsorption structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mutual inductor of the utility model when viewed from above;

[0022] Figure 4 It is a schematic diagram of the top view structure of the mutual inductor of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Carrying box; 2. Ventilation window; 3. Mounting plate; 4. Vacuum pump; 5. Sensor; 6. Intake pipe; 7. Exhaust pipe; 8. Valve; 9. Telescopic rod; 10. Elastic ring; 11. Suction cup; 12. Transformer housing; 13. Bracket; 14. Mounting hole; 15. Fan-shaped plate; 16. Wire group; 17. Iron core; 18. Integrated block; 19. Terminal; 20. Anti-interference magnetic ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4As shown, the utility model is a power transformer that is easy to maintain, including a carrier box 1, a mounting plate 3 is fixedly connected inside the carrier box 1, a vacuum pump 4 is installed on the top of the mounting plate 3, a suction pipe 6 is fixedly connected to the side of the vacuum pump 4, a valve 8 is fixedly connected to the bottom of the suction pipe 6, a telescopic rod 9 is fixedly connected to the bottom of the valve 8, an elastic ring 10 is fixedly connected to the bottom of the telescopic rod 9, a suction cup 11 is fixedly connected to the bottom of the elastic ring 10, an exhaust pipe 7 is fixedly connected to the side of the vacuum pump 4, and the top of the vacuum pump 4 is fixedly connected to A sensor 5 is provided, a ventilation window 2 is provided on the side of the carrier box 1, a metal mesh is installed on the outside of the ventilation window 2, and a vacuum adsorption device composed of an air pump 4, an air suction pipe 6, a suction cup 11, etc. is used to form a closed volume between the suction cup 11 and the installation surface with atmospheric pressure as the force. A certain amount of gas molecules are extracted by the air pump 4 to reduce the pressure, so that a pressure difference is formed inside and outside the suction cup 11. Adsorption and fixation are carried out under the action of this pressure difference, and the device has the characteristics of stable suction, small size, simple structure, easy installation, long service life, etc.

[0027] The top of the carrier box 1 is fixedly connected to the transformer housing 12, the interior of the transformer housing 12 is fixedly connected to the anti-interference magnetic ring 20, the interior of the anti-interference magnetic ring 20 is fixedly connected to the wire group 16, the wire group 16 is provided with a plurality of wires, the interior of the wire group 16 is fixedly connected to the iron core 17, the bottom of the transformer housing 12 is fixedly connected to the bracket 13, the bottom of the bracket 13 is provided with a mounting hole 14, the mounting hole 14 is provided with a plurality of holes, the top of the transformer housing 12 is fixedly connected to the fan-shaped plate 15, the fan-shaped plate 15 is provided with a plurality of fans, the top of the fan-shaped plate 15 is fixedly connected to the integrated block 18, the top of the integrated block 18 is fixedly connected to the terminal 19, the anti-interference magnetic ring 20 is used to make the electronic equipment meet the corresponding international standards of electromagnetic compatibility and electrostatic discharge, the anti-interference magnetic ring 20 reduces the external interference on the signal line, improves the quality and stability of signal transmission, and saves the cost of equipment maintenance and replacement.

[0028] A specific application of this embodiment is: first, use the suction pipe 6 to connect the air outlet of the vacuum pump 4 to the air inlet of the valve 8, fix the suction cup 11 and the mounting surface together, adjust the position, open the valve 8 to start the vacuum pump 4, and start to draw out the external air, so that the suction cup 11 generates suction, adjust the pressure of the vacuum pump 4 to obtain the best state, install and fix the suction cup 11 and the mounting surface, and complete the work. This vacuum adsorption technology uses atmospheric pressure as the force, and forms a closed volume between the suction cup 11 and the mounting surface. A certain amount of gas molecules are extracted by the vacuum pump 4 to reduce the pressure, so that a pressure difference is formed inside and outside the suction cup 11, and adsorption and fixation are carried out under the action of this pressure difference, and then the transformer housing 12 is fixed to facilitate later replacement and maintenance.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A power transformer that is easy to maintain, comprising a carrying box (1), characterized in that: The interior of the carrier box (1) is fixedly connected to a mounting plate (3), a vacuum pump (4) is installed on the top of the mounting plate (3), a suction pipe (6) is fixedly connected to the side of the vacuum pump (4), a valve (8) is fixedly connected to the bottom of the suction pipe (6), a telescopic rod (9) is fixedly connected to the bottom of the valve (8), an elastic ring (10) is fixedly connected to the bottom of the telescopic rod (9), and a suction cup (11) is fixedly connected to the bottom of the elastic ring (10).

2. The power transformer easy to maintain according to claim 1, characterized in that: An exhaust pipe (7) is fixedly connected to the side of the air pump (4), and a sensor (5) is fixedly connected to the top of the air pump (4).

3. The power transformer easy to maintain according to claim 1, characterized in that: A ventilation window (2) is provided on the side of the carrier box (1), and a metal mesh is installed on the outside of the ventilation window (2).

4. The power transformer easy to maintain according to claim 1, characterized in that: The top of the carrying box (1) is fixedly connected to a transformer housing (12), and the interior of the transformer housing (12) is fixedly connected to an anti-interference magnetic ring (20).

5. The power transformer easy to maintain according to claim 4, characterized in that: The anti-interference magnetic ring (20) is fixedly connected to a wire group (16) inside, the wire group (16) is provided with a plurality of wire groups, and the wire group (16) is fixedly connected to an iron core (17) inside.

6. The power transformer easy to maintain according to claim 4, characterized in that: A bracket (13) is fixedly connected to the bottom of the transformer housing (12), and a mounting hole (14) is provided at the bottom of the bracket (13). The mounting holes (14) are provided in a plurality.

7. The power transformer easy to maintain according to claim 4, characterized in that: A sector plate (15) is fixedly connected to the top of the transformer housing (12), and a plurality of sector plates (15) are provided.

8. The power transformer easy to maintain according to claim 7, characterized in that: The top of the sector plate (15) is fixedly connected to an integrated block (18), and the top of the integrated block (18) is fixedly connected to a terminal (19).

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