Isolation type control transformer

Abstract

The utility model discloses an isolation type control transformer which comprises an isolation transformer body, an air inlet structure is fixedly installed in a through hole in the side face of the isolation transformer body, a cabinet door is movably installed on the front surface of the isolation transformer body through a hinge, and a door lock is fixedly installed at the end, away from the hinge, in the cabinet door. A transformer voltmeter is fixedly installed in the rectangular through holes, close to the two corners of the upper end, of the front surface of the cabinet door, and a transformer indicating lamp is fixedly installed in the round through hole, close to the transformer voltmeter, of the front surface of the cabinet door. According to the isolation type control transformer, the air inlet structure is matched with the exhaust fan so that the isolation type control transformer can dissipate heat through the fan, the heat dissipation effect is better, dust and rainwater cannot be adsorbed into the isolation transformer body, the supporting and anti-skid effects are achieved through the limiting support, and the isolation type control transformer is convenient to use. And the isolation type control transformer can be prevented from sliding up and down on a slope and shifting on a plane.

Description

Technical Field

[0001] The utility model relates to the technical field of isolation transformer structures, in particular to an isolation control transformer. Background Art

[0002] An isolation transformer is a transformer with electrical isolation between the input and output windings. It is used to prevent accidental contact with live parts. The isolation of the transformer is to isolate the currents of the primary and secondary windings. Isolation transformers are safe power supplies and are generally used for machine repair and maintenance. They provide protection, lightning protection, and filtering. The main function of the isolation transformer is to completely insulate the primary and secondary sides of the circuit. In addition, the high-frequency loss of the iron core is used to suppress the transmission of high-frequency noise into the control circuit.

[0003] Existing isolation control transformers have certain disadvantages when in use. Traditional isolation transformers have no heat dissipation structure, and the heat dissipation effect of the isolation transformer is poor. In addition, the isolation transformer is too heavy and easily slides down on a slope. When it is hit on a flat surface, its position is easily shifted. Utility Model Content

[0004] The main purpose of the present invention is to provide an isolated control transformer, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An isolation control transformer comprises an isolation transformer main body, an air intake structure is fixedly installed inside the through hole on the side of the isolation transformer main body, a cabinet door is movably installed on the front surface of the isolation transformer main body through a hinge, a door lock is fixedly installed on the end of the cabinet door away from the hinge, a transformer voltmeter is fixedly installed in the rectangular through holes on the front surface of the cabinet door near the two upper corners, a transformer indicator light is fixedly installed in the circular through holes on the front surface of the cabinet door near the transformer voltmeter, a box cover is fixedly installed on the upper surface of the isolation transformer main body by bolts, limiting brackets are movably installed on the front and rear surfaces of the isolation transformer main body near the two lower corners, an exhaust fan is fixedly installed in the circular through holes on the lower surface of the isolation transformer main body, universal wheels are fixedly installed at the four corners of the lower surface of the isolation transformer main body, and handles are fixedly installed at the two upper corners of the front surface of the isolation transformer main body.

[0007] Preferably, the air intake structure includes an air intake fan, a No. 1 filter, a No. 2 filter, a limiting elastic rubber ring and a rain cover clip.

[0008] Preferably, the air inlet fan is fixedly installed in a through hole on the side of the isolation transformer body, and the limiting elastic rubber ring is fixedly installed on the outside of the No. 1 filter and the No. 2 filter.

[0009] Preferably, an annular groove is provided on the outer side of the inlet fan and the No. 1 filter, the front surface of the No. 1 filter fits in the front surface of the inlet fan, the front surface of the No. 2 filter fits in the rear surface of the No. 1 filter, the rear end of the inlet fan is stuck in the inside of the upper limit elastic rubber ring of the No. 1 filter, and the rear end of the No. 1 filter is stuck in the inside of the upper limit elastic rubber ring of the No. 2 filter.

[0010] Preferably, the rain cover clip is clamped on the outside of the air inlet fan, and the No. 1 filter, No. 2 filter and the limiting elastic rubber ring are located inside the rain cover clip.

[0011] Preferably, the limiting bracket includes a movable bracket, a U-shaped spring sheet and a triangular rubber pad.

[0012] Preferably, the upper end of the movable bracket is movably mounted inside the through hole on the front and rear surfaces of the isolation transformer body, the U-shaped spring sheet is fixedly mounted on the lower surface of the movable bracket, the triangular rubber pad is fixedly mounted on the lower surface of the U-shaped spring sheet, and a transverse groove is provided on the lower surface of the triangular rubber pad. There are several transverse grooves on the lower surface of the triangular rubber pad, and the transverse grooves on the lower surface of the triangular rubber pad are evenly distributed.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, the air intake structure and the exhaust fan are provided, and the air intake structure cooperates with the exhaust fan to enable the isolation control transformer to dissipate heat through the fan, and the heat dissipation effect is better, and dust and rainwater will not be adsorbed into the interior of the isolation transformer body. The limit bracket is provided, and the limit bracket plays a supporting and anti-skid role, which can prevent the isolation control transformer from sliding down on the slope and displacing on the plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an isolated control transformer of the utility model;

[0016] Figure 2 This is an exploded schematic diagram of an isolation transformer body and an air inlet structure of an isolation control transformer of the utility model;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a limit bracket of an isolated control transformer of the utility model;

[0018] Figure 4 This utility model is an isolated control transformer Figure 2 Enlarged schematic diagram of part A.

[0019] In the figure: 1. Isolation transformer body; 2. Air inlet structure; 201. Inlet fan; 202. Filter No. 1; 203. Filter No. 2; 204. Limiting elastic rubber ring; 205. Rain cover clip; 3. Box cover; 4. Exhaust fan; 5. Door lock; 6. Transformer voltmeter; 7. Transformer indicator light; 8. Limiting bracket; 801. Movable bracket; 802. U-shaped spring sheet; 803. Triangular rubber pad; 9. Universal wheel; 10. Handle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, an isolation control transformer includes an isolation transformer body 1, an air inlet structure 2 is fixedly installed inside the through hole on the side of the isolation transformer body 1, a cabinet door 3 is movably installed on the front surface of the isolation transformer body 1 through a hinge, a door lock 4 is fixedly installed on the end of the cabinet door 3 away from the hinge, a transformer voltmeter 5 is fixedly installed in the rectangular through holes on the front surface of the cabinet door 3 near the two corners of the upper end, a transformer indicator light 6 is fixedly installed in the circular through holes on the front surface of the cabinet door 3 near the transformer voltmeter 5, a box cover 7 is fixedly installed on the upper surface of the isolation transformer body 1 by bolts, and the front and rear surfaces of the isolation transformer body 1 near the two lower ends are fixed with a cover. A limit bracket 8 is movably installed at the corner position, an exhaust fan 9 is fixedly installed in the circular through hole on the lower surface of the isolation transformer main body 1, universal wheels 10 are fixedly installed at the four corners of the lower surface of the isolation transformer main body 1, and handles 11 are fixedly installed at the two upper corners of the front surface of the isolation transformer main body 1. The air inlet structure 2 cooperates with the exhaust fan 9 to enable the isolation control transformer to dissipate heat through the fan, and the heat dissipation effect is better, and dust and rainwater will not be adsorbed into the interior of the isolation transformer main body 1. The limit bracket 8 plays a supporting and anti-skid role, which can prevent the isolation control transformer from sliding on the slope and displacing on the plane.

[0022] The air intake structure 2 includes an air intake fan 201, a filter screen 202 No. 1, a filter screen 203 No. 2, a limiting elastic rubber ring 204 and a rain cover clip 205; the air intake fan 201 is fixedly installed in the through hole on the side of the isolation transformer body 1, and the limiting elastic rubber ring 204 is fixedly installed on the outside of the filter screen 202 No. 1 and the filter screen 203 No. 2; an annular groove is provided on the outside of the air intake fan 201 and the filter screen 202 No. 1, the front surface of the filter screen 202 fits the front surface of the air intake fan 201, the front surface of the filter screen 203 fits the rear surface of the filter screen 202, the rear end of the air intake fan 201 is stuck in the inside of the upper limit elastic rubber ring 204 of the filter screen 202, and the rear end of the filter screen 202 is stuck in the upper limit elastic rubber ring of the filter screen 203 204; the rain cover clip 205 is clamped on the outside of the fan inlet 201, and the No. 1 filter 202, the No. 2 filter 203 and the limiting elastic rubber ring 204 are located inside the rain cover clip 205; the limiting bracket 8 includes a movable bracket 801, a U-shaped spring sheet 802 and a triangular rubber pad 803; the upper end of the movable bracket 801 is movably mounted inside the through hole on the front and rear surfaces of the isolation transformer body 1, the U-shaped spring sheet 802 is fixedly mounted on the lower surface of the movable bracket 801, and the triangular rubber pad 803 is fixedly mounted on the lower surface of the U-shaped spring sheet 802. A transverse groove is provided on the lower surface of the triangular rubber pad 803, and the number of transverse grooves provided on the lower surface of the triangular rubber pad 803 is several, and the transverse grooves on the lower surface of the triangular rubber pad 803 are evenly distributed.

[0023] It should be noted that the present invention is an isolation control transformer. When in use, the handle 11 can be held by hand to push the isolation transformer body 1 through the universal wheel 10. When on a slope, in the limit bracket 8, the movable bracket 801 can be stepped on downward, the U-shaped spring piece 802 is compressed, and the triangular rubber pad 803 plays an anti-slip role to prevent the isolation transformer body 1 from sliding down. The horizontal grooves on the lower surface of the triangular rubber pad 803 play a role in increasing friction. When on a plane, step on the movable brackets 801 at both ends of the isolation transformer body 1 to prevent the isolation transformer body 1 from being displaced. The limit bracket 8 plays a supporting and anti-slip role, which can prevent the isolation control transformer from sliding down on the slope and displacing on the plane. In the air inlet structure 2 and the exhaust fan 9, the inlet fan 201 blows air into the isolation transformer body 1, and the exhaust fan 9 isolates the air inside the transformer body 1. The air is discharged, and the inlet fan 201 and the exhaust fan 9 accelerate the air flow in the isolation transformer main body 1 and accelerate the heat dissipation of the internal device structure of the isolation transformer main body 1. The No. 1 filter 202 and the No. 2 filter 203 play a filtering role, and the rain cover clip 205 plays a rain shield role to prevent rainwater from entering the interior of the isolation transformer main body 1 through the inlet fan 201. When you want to clean the No. 1 filter 202 and the No. 2 filter 203, remove the rain cover clip 205, unplug the No. 1 filter 202 and the No. 2 filter 203, and then re-sleeve them on the front surface of the inlet fan 201 through the limiting elastic rubber ring 204, and re-clamp the rain cover clip 205 on the outside of the inlet fan 201. The air inlet structure 2 cooperates with the exhaust fan 9 to dissipate heat from the isolation control transformer through the fan, and the heat dissipation effect is better, and dust and rainwater will not be adsorbed into the interior of the isolation transformer main body 1.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An isolated control transformer, characterized in that: The invention comprises an isolation transformer body (1), wherein an air inlet structure (2) is fixedly installed in a through hole on the side of the isolation transformer body (1), a cabinet door (3) is movably installed on the front surface of the isolation transformer body (1) through a hinge, a door lock (4) is fixedly installed on the end of the cabinet door (3) away from the hinge, a transformer voltmeter (5) is fixedly installed in the rectangular through holes near the upper two corners of the front surface of the cabinet door (3), a transformer indicator light (6) is fixedly installed in the circular through holes near the transformer voltmeter (5) on the front surface of the cabinet door (3), a box cover (7) is fixedly installed on the upper surface of the isolation transformer body (1) through bolts, a limiting bracket (8) is movably installed on the front and rear surfaces of the isolation transformer body (1) near the lower two corners, an exhaust fan (9) is fixedly installed in the circular through hole on the lower surface of the isolation transformer body (1), universal wheels (10) are fixedly installed at the four corners of the lower surface of the isolation transformer body (1), and a handle (11) is fixedly installed at the upper two corners of the front surface of the isolation transformer body (1).

2. The isolated control transformer according to claim 1, characterized in that: The air intake structure (2) comprises an air intake fan (201), a No. 1 filter (202), a No. 2 filter (203), a limiting elastic rubber ring (204) and a rain cover clip (205).

3. The isolated control transformer according to claim 2, characterized in that: The air inlet fan (201) is fixedly mounted in a through hole on the side of the isolation transformer body (1), and the limiting elastic rubber ring (204) is fixedly mounted on the outside of the first filter (202) and the second filter (203).

4. The isolated control transformer according to claim 3, characterized in that: An annular groove is provided on the outer sides of the inlet fan (201) and the first filter (202); the front surface of the first filter (202) is fitted with the front surface of the inlet fan (201); the front surface of the second filter (203) is fitted with the rear surface of the first filter (202); the rear end of the inlet fan (201) is inserted into the interior of the upper limit elastic rubber ring (204) of the first filter (202); and the rear end of the first filter (202) is inserted into the interior of the upper limit elastic rubber ring (204) of the second filter (203).

5. The isolated control transformer according to claim 4, characterized in that: The rain cover clip (205) is clamped on the outside of the air inlet fan (201), and the No. 1 filter (202), the No. 2 filter (203) and the limiting elastic rubber ring (204) are located inside the rain cover clip (205).

6. The isolated control transformer according to claim 5, characterized in that: The position-limiting bracket (8) comprises a movable bracket (801), a U-shaped spring sheet (802) and a triangular rubber pad (803).

7. The isolated control transformer according to claim 6, characterized in that: The upper end of the movable bracket (801) is movably mounted inside the through-holes on the front and rear surfaces of the isolation transformer body (1); the U-shaped spring piece (802) is fixedly mounted on the lower surface of the movable bracket (801); the triangular rubber pad (803) is fixedly mounted on the lower surface of the U-shaped spring piece (802); a transverse groove is provided on the lower surface of the triangular rubber pad (803); the number of transverse grooves provided on the lower surface of the triangular rubber pad (803) is several, and the transverse grooves on the lower surface of the triangular rubber pad (803) are evenly distributed.

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