CN215183495U

CN215183495U - Demagnetization protection structure of voltage transformer

Info

Publication number: CN215183495U
Application number: CN202121355955.0U
Authority: CN
Inventors: 朱毅
Original assignee: Shanghai Yihu Electrical Appliance Co ltd
Current assignee: Shanghai Yihu Electrical Appliance Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-14
Anticipated expiration: 2031-06-17

Abstract

The application relates to a demagnetizing protection structure of a voltage transformer, which relates to the technical field of electrical devices and comprises a transformer body, wherein two wiring terminals are fixedly connected to the top of the transformer body; the mutual inductor is characterized in that a cooling piece is arranged on the mutual inductor body, the cooling piece is erected on the mutual inductor body, and the cooling piece reduces the temperature of the mutual inductor body. This application has the ferromagnetic resonance that prevents that the mutual-inductor body from taking place in the use and leading to the mutual-inductor body to take place serious damage, does benefit to the effect of popularization and use.

Description

Demagnetization protection structure of voltage transformer

Technical Field

The application relates to the technical field of electrical devices, in particular to a demagnetizing protection structure of a voltage transformer.

Background

At present, voltage transformers, like transformers, are instruments for transforming the voltage on the line. However, the purpose of transforming voltage by the transformer is to transmit electric energy, so the capacity is large, and the capacity is generally calculated by kilovolt-ampere or mega volt-ampere; the voltage transformer is mainly used for supplying power to a measuring instrument and a relay protection device, measuring the voltage, power and electric energy of a line, or protecting valuable equipment, a motor and a transformer in the line when the line fails, so that the capacity of the voltage transformer is small, generally only a few volt-amperes and dozens of volt-amperes, and the maximum voltage of the voltage transformer does not exceed one thousand volt-amperes.

In the related art, a worker usually installs a voltage transformer outdoors, connects a wire to the voltage transformer when installing the voltage transformer, grounds a secondary coil after connecting the voltage transformer to the wire, installs fuses on both primary and secondary sides, and installs a disconnector on the primary side.

For the related technologies, the inventor thinks that ferromagnetic resonance easily occurs in the use process of the voltage transformer, and the ferromagnetic resonance can cause the voltage transformer to be seriously damaged, which is not beneficial to popularization and use.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the voltage transformer is seriously damaged due to ferromagnetic resonance generated in the use process of the voltage transformer, the application provides a demagnetization protection structure of the voltage transformer.

The application provides a voltage transformer's except that magnetism protective structure adopts following technical scheme:

a demagnetization protection structure of a voltage transformer comprises a transformer body, wherein two wiring terminals are fixedly connected to the top of the transformer body, a fixed plate is arranged on the transformer body and fixed with the transformer body, a coil is arranged on the fixed plate and detachably fixed on the fixed plate, a direct-current power supply box is arranged on the transformer body and detachably fixed with the transformer body, and the direct-current power supply box supplies power to the coil; the mutual inductor is characterized in that a cooling piece is arranged on the mutual inductor body, the cooling piece is erected on the mutual inductor body, and the cooling piece reduces the temperature of the mutual inductor body.

Optionally, the mutual inductor body is provided with two supporting plates, the two supporting plates are arranged oppositely, the cooling part comprises a fan and a driving motor, the driving motor is erected between the two supporting plates, and the fan is fixed with the rotating shaft of the driving motor.

Optionally, a magnet ball is arranged on the fan, and the magnet ball is fixed to the fan.

Optionally, the supporting plate is provided with heat dissipation holes, and the heat dissipation holes penetrate through the supporting plate.

Optionally, a fixing groove is formed in the fixing plate, one end of the fixing groove is opened, one end of the opening of the fixing groove faces away from the transformer body, and the coil is embedded in the fixing groove.

Optionally, a side plate is arranged on the direct current power supply box, one end of the side plate is fixed to the direct current power supply box, the other end of the side plate extends to one side far away from the direct current power supply box, a fixing bolt is arranged on the side plate, a screw of the fixing bolt penetrates through the side plate, and one end of the fixing bolt penetrating through the side plate is fixed to the mutual inductor body.

To sum up, this application includes following at least one voltage transformer's the beneficial technological effect of protection structure that removes magnetism:

according to the principle of electromagnetic induction, the coil is fixed on the fixed plate of the mutual inductor body, direct current is conducted to the coil through the direct current power supply box, then the direction and the size of the current are well controlled, then the cooling part cools the mutual inductor body, heat is avoided gathering in the mutual inductor body, ferromagnetic resonance which helps prevent the mutual inductor body from happening in the using process leads to the mutual inductor body to happen serious damage, and popularization and use are facilitated.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a demagnetizing protection structure of a voltage transformer according to this embodiment.

Reference numerals: 1. a transformer body; 11. a wiring terminal; 2. a fixing plate; 21. fixing grooves; 3. a DC power supply box; 31. a side plate; 32. fixing the bolt; 33. a coil; 4. a cooling member; 41. a support plate; 411. heat dissipation holes; 42. a transverse plate; 43. a fan; 431. a magnet ball; 44. the motor is driven.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses voltage transformer's protection architecture that removes magnetism.

Referring to fig. 1, a voltage transformer removes magnetism protective structure, including mutual-inductor body 1, be provided with binding post 11 on mutual-inductor body 1, binding post 11 is provided with two on mutual-inductor body 1, two binding post 11 all with mutual-inductor body 1 is fixed.

Referring to fig. 1, be provided with fixed plate 2 outside mutual-inductor body 1, fixed plate 2 is whole to be rectangular plate-like, and fixed plate 2 is provided with a plurality of around the interval in the 1 outside of mutual-inductor body, and the one end of 2 width directions of a plurality of fixed plate all is fixed with mutual-inductor body 1, and the other end all extends to the one side of keeping away from mutual-inductor body 1. All seted up fixed slot 21 on a plurality of fixed plate 2, fixed slot 21 is along corresponding 2 evenly spaced apart of length direction of fixed plate and being equipped with threely, and one side of fixed slot 21 is openly, and one side orientation that open department of fixed slot 21 deviates from one side of mutual-inductor body 1.

Referring to fig. 1, a direct current power supply box 3 is arranged on a transformer body 1, side plates 31 are arranged on two sides of the direct current power supply box 3, one ends of the side plates 31 on two sides of the direct current power supply box 3 are fixed with the direct current power supply box 3, and the other ends of the side plates extend to one side far away from the direct current power supply box 3. Be provided with fixing bolt 32 on the curb plate 31, the one end of fixing bolt 32 screw rod all passes curb plate 31, and the one end that fixing bolt 32 screw rod passed curb plate 31 all is fixed with mutual-inductor body 1.

Referring to fig. 1, coils 33 are arranged on the transformer body 1, the coils 33 are annular as a whole, the annular coils 33 are sleeved outside the transformer body 1, three coils 33 are arranged at intervals along the length direction of the fixing plate 2, the three coils 33 are embedded in the corresponding fixing grooves 21, the coils 33 penetrate through the dc power box 3, and the coils 33 are supplied with power by the dc power box 3. According to the principle of electromagnetic induction, the direction and the size of the current of the direct-current power supply box 3 are adjusted to reduce ferromagnetic resonance of the mutual inductor body 1 in the using process.

Referring to fig. 1, when the mutual inductor body 1 and the dc power supply box 3 operate, a large amount of heat is generated, and the heat is accumulated in the mutual inductor body 1, which tends to shorten the service life of the mutual inductor body 1. So the designer sets up cooling 4 on mutual-inductor body 1, and cooling 4 includes backup pad 41, and backup pad 41 is whole to be rectangular plate-like, and backup pad 41 is provided with two relatively along its self thickness direction, and two backup pad 41 width direction's one end all is fixed with one side that mutual-inductor body 1 deviates from binding post 11, and the other end all extends to one side of keeping away from mutual-inductor body 1.

Referring to fig. 1, a transverse plate 42 is disposed between the two support plates 41, the transverse plate 42 is formed in a rectangular plate shape as a whole, the transverse plate 42 is horizontally disposed in a longitudinal direction, and both ends of the transverse plate 42 in the longitudinal direction are fixed to the support plates 41 at both sides, respectively.

Referring to fig. 1, the cooling member 4 includes a fan 43 and a driving motor 44, a rotating shaft of the driving motor 44 faces the transformer body 1, and the driving motor 44 is detachably fixed on the horizontal plate 42. The fan 43 is fixed with the output shaft of the driving motor 44, the driving motor 44 drives the fan 43 to rotate, the air flow on the surface of the mutual inductor body 1 is accelerated through the fan 43, the accumulation of heat generated when the mutual inductor body 1 and the direct-current power supply box 3 work in the mutual inductor body 1 is reduced, and the service life of the mutual inductor body 1 is prolonged.

Referring to fig. 1, heat dissipation holes 411 have been all seted up on two backup pads 41, and heat dissipation holes 411 are equipped with a plurality of along backup pad 41 length direction interval, and the steam between two backup pads 41 is discharged through heat dissipation holes 411 on backup pad 41 to make, the air flow effect between two backup pads 41 is better, increases the radiating efficiency of mutual-inductor body 1.

Referring to fig. 1, a magnet ball 431 is arranged on the fan 43, the magnet ball 431 corresponds to the fan blades of the fan 43, the magnet ball 431 is fixed to the corresponding fan blades, the driving motor 44 drives the fan 43 to rotate, the fan 43 drives the magnet ball 431 to do circular motion, and ferromagnetic resonance generated in the using process of the transformer body 1 is further reduced by the fact that the magnet ball 431 does far circular motion on the lower side of the transformer body 1.

The implementation principle of the demagnetization protection structure of the voltage transformer in the embodiment of the application is as follows: in the application, according to the electromagnetic induction principle, the direction and the magnitude of the current provided by the direct current power supply box 3 to the coil 33 are adjusted, then the driving motor 44 drives the fan 43 to rotate, the fan 43 accelerates the air flow on the surface of the mutual inductor body 1, the heat between the two supporting plates 41 is exhausted from the heat dissipation holes 411 on the two supporting plates 41, and the magnet ball 431 on the fan 43 makes a circular motion on the mutual inductor body 1 while the fan 43 rotates.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a voltage transformer remove magnetism protective structure, includes mutual-inductor body (1), two binding post (11) of mutual-inductor body (1) top fixedly connected with, its characterized in that: the mutual inductor comprises a mutual inductor body (1), and is characterized in that a fixing plate (2) is arranged on the mutual inductor body (1), the fixing plate (2) is fixed with the mutual inductor body (1), a coil (33) is arranged on the fixing plate (2), the coil (33) is detachably fixed on the fixing plate (2), a direct current power supply box (3) is arranged on the mutual inductor body (1), the direct current power supply box (3) is detachably fixed with the mutual inductor body (1), and the direct current power supply box (3) supplies power to the coil (33); be provided with cooling piece (4) on mutual-inductor body (1), cooling piece (4) erect on mutual-inductor body (1), cooling piece (4) reduce the temperature of mutual-inductor body (1).

2. The demagnetizing protection structure of the voltage transformer, according to claim 1, wherein: be provided with backup pad (41) on mutual-inductor body (1), backup pad (41) are provided with two relatively, and cooling piece (4) include fan (43) and driving motor (44), driving motor (44) erect two between backup pad (41), fan (43) with the axis of rotation of driving motor (44) is fixed.

3. The demagnetizing protection structure of the voltage transformer, according to claim 2, wherein: the fan (43) is provided with a magnet ball (431), and the magnet ball (431) is fixed with the fan (43).

4. The demagnetizing protection structure of the voltage transformer, according to claim 2, wherein: the supporting plate (41) is provided with heat dissipation holes (411), and the heat dissipation holes (411) penetrate through the supporting plate (41).

5. The demagnetizing protection structure of the voltage transformer, according to claim 1, wherein: fixed slot (21) have been seted up on fixed plate (2), the one end of fixed slot (21) is open and sets up, just the open one end orientation of department of fixed slot (21) deviates from mutual-inductor body (1), coil (33) inlay and establish in fixed slot (21).

6. The demagnetizing protection structure of the voltage transformer, according to claim 1, wherein: be provided with curb plate (31) on direct current power supply case (3), the one end of curb plate (31) with direct current power supply case (3) are fixed, and the other end extends to the one side of keeping away from direct current power supply case (3), be provided with fixing bolt (32) on curb plate (31), the screw rod of fixing bolt (32) passes curb plate (31), fixing bolt (32) pass the one end of curb plate (31) with mutual-inductor body (1) is fixed.