CN210245286U

CN210245286U - Variable-voltage low-noise transformer

Info

Publication number: CN210245286U
Application number: CN201921279614.2U
Authority: CN
Inventors: Xiaojun Zhao; 赵小军; Yuqing Zhou; 周雨晴
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-03
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a variable-voltage low-noise transformer, which comprises a transformer main body, wherein a top cover plate is arranged above the transformer main body, one ends of a high-voltage sleeve and a low-voltage sleeve are respectively provided with a wiring end, a noise reducer component is arranged on the transformer main body, the interior of the noise reducer component is jointly composed of a noise detection unit, an active noise reducer and a reverse cancellation sound wave module, a decibel detector is arranged on the noise detection unit, and a sound wave generator is arranged on one side of the reverse cancellation sound wave module. Therefore, the two can be mutually offset, and the interference of the environmental noise to the user is effectively solved.

Description

Variable-voltage low-noise transformer

Technical Field

The utility model relates to a transformer technical field especially relates to a variable voltage low noise transformer.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.). The circuit symbols are usually T as the beginning of the numbering, e.g., T01, T201, etc. The transformer consists of an iron core (or a magnetic core) and a coil, wherein the coil is provided with two or more than two windings, the winding connected with a power supply is called a primary coil, and the other windings are called secondary coils. It can transform alternating voltage, current and impedance. The simplest iron core transformer consists of an iron core made of soft magnetic material and two coils with different turns sleeved on the iron core. The transformer transformation principle was first discovered by faraday, but not started to be put into practical use until the 80 s of the nineteenth century. In the competition that a power plant should output both direct current and alternating current, it is one of its advantages to be able to use a transformer for alternating current. The transformer can convert the electric energy into a high-voltage low-current form and then convert the electric energy back, so that the loss of the electric energy in the transmission process is greatly reduced, and the economic transmission distance of the electric energy is further. Therefore, the power plant can be built at a place far away from the power utilization place. Most of the world's power goes through a series of transformers before it finally reaches the consumer.

The existing transformer has poor noise reduction effect, and cannot meet the requirements of production and application, so that a novel variable-voltage low-noise transformer is urgently needed to be developed to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The utility model discloses a variable voltage low noise transformer, through be provided with the subassembly of making an uproar that falls in the transformer, according to the principle of making an uproar that falls voluntarily generate with ambient noise information assorted fall the waveform of making an uproar, then regenerate and fall the waveform assorted acoustic signal of making an uproar, because ambient noise's waveform and the waveform size of the acoustic information of falling the waveform of making an uproar and generating are equal and sound opposite, therefore both can offset each other to the effectual ambient noise of having solved brings the interference to the user.

In order to achieve the above and other objects, the present invention adopts the following technical solutions:

the utility model provides a variable voltage low noise transformer, includes the transformer main part, the lamina tecti is installed to the top of transformer main part, installs high-voltage bushing and low-voltage bushing on the lamina tecti respectively, and high-voltage bushing and low-voltage bushing's one end all is provided with the wiring end, install the ware subassembly of making an uproar that falls in the transformer main part, fall the inside noise reduction ware subassembly by noise detection unit, the ware of making an uproar, reverse offset the sound wave module and constitute jointly, install the decibel detector on the noise detection unit, reverse offset a side-mounting of sound wave module has sound generator.

Preferably, in the variable voltage low noise transformer, a sound wave emitting port is formed on a surface of the counter cancellation sound wave module.

Preferably, in the variable voltage low noise transformer, two sets of active noise reducers are provided, and a filter is provided inside the active noise reducers.

Preferably, in the variable voltage low noise transformer, a sound absorbing plate is disposed at the bottom of the noise reducer assembly.

Preferably, in the variable voltage low noise transformer, a heat dissipation groove is formed on a surface of the transformer body.

Preferably, in the variable voltage low noise transformer, four corners of the bottom of the transformer body are fixed to the universal wheels by hinge brackets.

The utility model discloses at least, include following beneficial effect:

the utility model discloses a be provided with the subassembly of making an uproar in the transformer, the principle of making an uproar generates and falls the waveform of making an uproar with ambient noise information assorted according to initiatively falling, then regenerate and fall waveform phase-matched acoustic signal that makes an uproar, because ambient noise's waveform equals and sound is opposite with the waveform size of the acoustic information that waveform generated according to falling an uproar, consequently both can offset each other, thereby the effectual interference of having solved ambient noise and bringing the user, it is provided with the abatvoix to fall noise ware subassembly bottom, the abatvoix also can adsorb the noise that transformer self produced, effective noise abatement pollution.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a variable voltage low noise transformer provided by the present invention;

fig. 2 is a front view of the variable voltage low noise transformer provided by the present invention;

fig. 3 is a top view of a variable voltage low noise transformer provided by the present invention;

fig. 4 is a schematic structural diagram of a noise reducer assembly of a variable-voltage low-noise transformer according to the present invention.

Detailed Description

The present invention is described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.

As shown in fig. 1-4, a variable-voltage low-noise transformer, including a transformer main body 4, a top cover plate 3 is installed above the transformer main body 4, a high-voltage bushing 2 and a low-voltage bushing 9 are respectively installed on the top cover plate 3, terminals 1 are respectively installed at one ends of the high-voltage bushing 2 and the low-voltage bushing 9, a noise reducer assembly 10 is installed on the transformer main body 4, the inside of the noise reducer assembly 10 is jointly composed of a noise detection unit 12, an active noise reducer 15 and a reverse cancellation sound wave module 14, a decibel detector 11 is installed on the noise detection unit 12, and a sound wave generator 13 is installed at one side of the reverse cancellation sound wave module 14.

In the above scheme, the noise reduction waveform matched with the environmental noise information is generated according to the active noise reduction principle of the active noise reducer 15, and then the sound signal matched with the noise reduction waveform is generated, because the waveform of the environmental noise and the waveform of the sound information generated according to the noise reduction waveform are equal in size and opposite in sound, the sound wave is emitted by the reverse cancellation sound wave module 14, so that the two can be cancelled out, and the interference of the environmental noise to the user is effectively solved.

In a preferred embodiment, the surface of the counter-counteracting acoustic wave module 14 is provided with an acoustic wave emitting port.

In the above scheme, the acoustic wave is emitted by the reverse cancellation acoustic wave module 14 to cancel the waveform of the external environment noise.

In a preferred embodiment, two sets of active noise reducers 15 are provided, and a filter is provided inside the active noise reducer 15.

In the above-described scheme, a noise reduction waveform matching the ambient noise information is generated by the active noise reduction principle according to the active noise reducer 15, and then an acoustic signal matching the noise reduction waveform is generated.

In one preferred embodiment, the noise reducer assembly 10 is provided with an acoustic panel at the bottom.

In the above scheme, the sound-absorbing board can also absorb the noise generated by the transformer main body 4, so that the noise pollution is effectively reduced.

In a preferred scheme, the surface of the transformer body 4 is provided with a heat dissipation groove 5.

In the above scheme, through being provided with radiating groove 5, the convenient heat that produces the inside heat that produces of transformer main part 4 dispels the heat fast, prevents that the heat overstock from influencing transformer main part 4's steady operation.

In a preferred scheme, four corners of the bottom of the transformer main body 4 are fixed with universal wheels 8 through hinge brackets 7.

In the above scheme, the maneuvering characteristics of the transformer body 4 can be improved through the universal wheels 8, and flexible movement can be performed.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the invention, as defined by the claims and the equivalents thereof, and which fall within the limits of the claims and the equivalents thereof.

Claims

1. The utility model provides a variable voltage low noise transformer, includes transformer main part (4), its characterized in that, lamina tecti (3) are installed to the top of transformer main part (4), install high-voltage bushing (2) and low-voltage bushing (9) on lamina tecti (3) respectively, and the one end of high-voltage bushing (2) and low-voltage bushing (9) all is provided with wiring end (1), install on transformer main part (4) and fall the ware subassembly of making an uproar (10), fall the ware subassembly of making an uproar (10) inside by noise detecting element (12), fall ware (15) of making an uproar voluntarily, reverse cancellation sound wave module (14) constitute jointly, install decibel detector (11) on noise detecting element (12), reverse cancellation sound wave generator (13) are installed to one side of sound wave module (14).

2. The variable voltage low noise transformer according to claim 1, wherein a surface of the counter-canceling acoustic wave module (14) is provided with an acoustic wave emitting port.

3. A variable voltage low noise transformer according to claim 1, wherein said active noise reducer (15) is provided in two groups, and the active noise reducer (15) is internally provided with a filter.

4. A variable voltage low noise transformer according to claim 1, wherein the noise reducer assembly (10) is provided with a sound absorbing plate at the bottom.

5. The variable voltage low noise transformer according to claim 1, wherein a surface of the transformer body (4) is provided with a heat sink (5).

6. The variable voltage low noise transformer according to claim 1, wherein four corners of the bottom of the transformer body (4) are fixed to the casters (8) by means of hinge brackets (7).