CN210516414U

CN210516414U - Three-phase isolation transformer

Info

Publication number: CN210516414U
Application number: CN201921902220.8U
Authority: CN
Inventors: 吴帆; 吴志元
Original assignee: Suzhou Baoyinglong Motor Manufacturing Co Ltd
Current assignee: Suzhou Baoyinglong Motor Manufacturing Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-05-12
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a three-phase isolation transformer, which comprises a protective box body, a side plate of the protective box body is movably connected with a front panel through a hinge, a voltmeter is arranged on the front panel, the voltmeter is positioned on the upper part of the front panel, a fixed plate is arranged on the inner wall of a bottom plate and the inner wall of a top plate of the protective box body, a mounting hole is arranged on the fixed plate, an iron core winding is fixedly connected on the fixed plate through the mounting hole, the iron core winding is positioned in the protective box body, a wire inlet and outlet hole and a lateral part heat dissipation hole are arranged on the left side plate and the right side plate of the protective box body, a heat dissipation fan is arranged on the left side plate of the protective box body, a mounting frame is arranged on the outer wall of the bottom plate of the protective box body, a bearing lifting ring is arranged on the outer wall of the top plate of the, the connecting frame is movably connected with a handle through a screw.

Description

Three-phase isolation transformer

Technical Field

The utility model relates to a transformer technical field, in particular to three-phase isolation transformer.

Background

In electrical equipment and wireless circuits, a transformer is often used for voltage lifting, the transformer is a device for changing alternating-current voltage by utilizing the principle of electromagnetic induction, the three-phase isolation transformer is mainly used as a power supply in occasions where the power load requirements of power systems and industrial and mining enterprises are electrically isolated from a power grid, commercial power is changed into magnetoelectricity, the three-phase isolation transformer is used as an isolation device of a purification power supply and the power grid of a precision measurement test system, and the three-phase isolation transformer is widely applied to places with high safety and fire protection requirements, such as industrial and mining enterprises, power plants, airports, high-rise buildings, subways and the like, and is used for converting voltage, supplying lighting electrical equipment.

Electrical equipment can produce the heat in the use, and current transformer heat dispersion is relatively poor in three isolated phase, arouses the emergence of incident such as conflagration easily, is inconvenient for install the removal in many times because the difference of use occasion moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-phase isolation transformer to solve the problem of the heat dissipation of being not convenient for and installation that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: three-phase isolation transformer, including the protection box, a curb plate of protection box has positive panel through hinge swing joint, be provided with the voltmeter on the positive panel, just the voltmeter is located the upper portion of positive panel, all be provided with the fixed plate on the bottom plate inner wall of protection box and the roof inner wall, the mounting hole has been seted up on the fixed plate, the fixed plate passes through mounting hole fixed connection has the iron core winding, just the iron core winding is located the inside of protection box, inlet and outlet hole and lateral part louvre have all been seted up on the curb plate about the protection box, be provided with radiator fan on the left side board of protection box, just radiator fan is located the intermediate position of protection box left side board, be provided with the mounting bracket on the bottom plate outer wall of protection box.

Preferably, the mounting frame is welded with the protective box body.

Preferably, the outer wall of the top plate of the protection box body is provided with a bearing lifting ring, and the bearing lifting ring is welded with the protection box body.

Preferably, the outer walls of the left side plate and the right side plate of the protective box body are provided with connecting frames, and the connecting frames are located on the upper portion of the protective box body.

Preferably, the connecting frame is movably connected with a handle through a screw.

Preferably, a desiccant bag is placed on the inner wall of the bottom plate of the protective box body.

Preferably, a safety door lock is arranged on the front panel.

Preferably, a back plate is arranged on one side of the protection box body and is fixedly connected with the protection box body, and back heat dissipation holes are formed in the back plate.

The utility model discloses a technological effect and advantage:

1. the protection box body is provided with the side radiating holes and the back radiating holes, so that air in the protection box body can circulate conveniently, the heat radiating performance of the device is better, and the heat radiating effect of the device is further enhanced by the arranged heat radiating fan;

2. through the installation frame that sets up, be convenient for fix the device on the horizontal plane, under the restricted condition of mounted position, can hoist and mount the device aloft through the bearing rings, through the handle that sets up, the staff of being convenient for removes the device.

Drawings

Fig. 1 is a schematic view of the structure of the protective box of the present invention.

Fig. 2 is a cross-sectional view of the internal structure of the present invention.

Fig. 3 is a left side view of the structure of the present invention.

Fig. 4 is a schematic view of the back plate structure of the present invention.

In the figure: 1. a protective box body; 2. a front panel; 3. a voltmeter; 4. a fixing plate; 5. mounting holes; 6. an iron core winding; 7. an inlet and outlet wire hole; 8. side heat dissipation holes; 9. a heat radiation fan; 10. a mounting frame; 11. a load-bearing suspension ring; 12. a connecting frame; 13. a handle; 14. a desiccant bag; 15. a safety door lock; 16. a back plate; 17. and (4) heat dissipation holes in the back.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a three-phase isolation transformer as shown in figures 1-4, which comprises a protective box body 1, one side plate of the protective box body 1 is movably connected with a front panel 2 through a hinge, the front panel 2 is provided with a voltmeter 3, the voltmeter 3 is positioned at the upper part of the front panel 2, the inner walls of a bottom plate and a top plate of the protective box body 1 are both provided with a fixed plate 4, the fixed plate 4 is provided with a mounting hole 5, the fixed plate 4 is fixedly connected with an iron core winding 6 through the mounting hole 5, the iron core winding 6 is positioned inside the protective box body 1, the left side plate and the right side plate of the protective box body 1 are both provided with an inlet wire hole 7 and a side part heat dissipation hole 8, so that the air in the protective box body 1 is convenient to flow, the left side plate of the protective box body 1 is provided with a heat dissipation fan 9, and the heat dissipation fan, the device is characterized in that a mounting frame 10 is arranged on the outer wall of a bottom plate of the protective box body 1, the mounting frame 10 is welded with the protective box body 1, a bearing lifting ring 11 is arranged on the outer wall of a top plate of the protective box body 1, the bearing lifting ring 11 is welded with the protective box body 1, the device is fixed on a horizontal plane through the arranged mounting frame 10, and under the condition that the mounting position is limited, the device can be selectively lifted in the air through the bearing lifting ring 11.

Referring to fig. 1 and 3, the outer walls of the left and right side plates of the protective box body 1 are provided with connecting frames 12, the connecting frames 12 are located at the upper part of the protective box body 1, the connecting frames 12 are movably connected with handles 13 through screws, and the device can be conveniently moved to a designated position through the handles 13.

The desiccant bag 14 is placed on the inner wall of the bottom plate of the protection box body 1, so that the air humidity in the protection box body 1 is not too high, and short circuit of electrical equipment is avoided.

Be provided with safety door lock 15 on positive panel 2 to prevent that the foreign matter from getting into the inside of protection box 1, one side of protection box 1 is provided with backplate 16, and backplate 16 and protection box 1 fixed connection have seted up back louvre 17 on the backplate 16, thereby it reaches better radiating effect to be convenient for the air flow.

This practical theory of operation: the utility model discloses a three-phase isolation transformer, at first remove the device to the assigned position through handle 13, then fix the device on the horizontal plane through the mounting bracket 10 that sets up, under the restricted condition of mounted position, can select to hoist the device aloft through bearing rings 11, the installation is accomplished the back, through advancing wire hole 7 switch-on wire, realize the vary voltage through iron core winding 6, electrical equipment can produce the heat in the use, back louvre 17 of seting up on lateral part louvre 8 and the backplate 16 of seting up on through protection box 1, make protection box 1 air circulation comparatively convenient, thereby make the device's heat dispersion better, through the cooling fan 9 that sets up, further strengthened the device's radiating effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Three-phase isolation transformer, including protection box (1), its characterized in that: a positive panel (2) is movably connected to one side plate of the protection box body (1) through a hinge, a voltmeter (3) is arranged on the positive panel (2), the voltmeter (3) is positioned at the upper part of the positive panel (2), fixing plates (4) are arranged on the inner wall of a bottom plate and the inner wall of a top plate of the protection box body (1), mounting holes (5) are formed in the fixing plates (4), iron core windings (6) are fixedly connected to the fixing plates (4) through the mounting holes (5), the iron core windings (6) are positioned in the protection box body (1), wire inlet and outlet holes (7) and side heat dissipation holes (8) are formed in the left side plate and the right side plate of the protection box body (1), a heat dissipation fan (9) is arranged on the left side plate of the protection box body (1), and the heat dissipation fan (9) is positioned in the middle position of the left side plate of the protection box body (, and the outer wall of the bottom plate of the protective box body (1) is provided with a mounting rack (10).

2. The three-phase isolation transformer of claim 1, wherein: the mounting frame (10) and the protection box body (1) are welded together.

3. The three-phase isolation transformer of claim 1, wherein: the protection box is characterized in that a bearing lifting ring (11) is arranged on the outer wall of a top plate of the protection box body (1), and the bearing lifting ring (11) and the protection box body (1) are welded together.

4. The three-phase isolation transformer of claim 1, wherein: the protective box body is characterized in that connecting frames (12) are arranged on the outer walls of the left side plate and the right side plate of the protective box body (1), and the connecting frames (12) are located on the upper portion of the protective box body (1).

5. The three-phase isolation transformer of claim 4, wherein: the connecting frame (12) is movably connected with a handle (13) through a screw.

6. The three-phase isolation transformer of claim 1, wherein: and a drying agent bag (14) is placed on the inner wall of the bottom plate of the protective box body (1).

7. The three-phase isolation transformer of claim 1, wherein: and a safety door lock (15) is arranged on the front panel (2).

8. The three-phase isolation transformer of claim 1, wherein: a back plate (16) is arranged on one side of the protection box body (1), the back plate (16) is fixedly connected with the protection box body (1), and a back heat dissipation hole (17) is formed in the back plate (16).