CN110890196A

CN110890196A - Voltage-adjustable transformer

Info

Publication number: CN110890196A
Application number: CN201911229449.4A
Authority: CN
Inventors: 朱治景; 贾新民; 轩晓华; 土振国
Original assignee: TIANJIN ZHONGTUO TRANSFORMER Co Ltd
Current assignee: TIANJIN ZHONGTUO TRANSFORMER Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-03-17

Abstract

The invention provides a voltage-adjustable transformer, which comprises a transformer shell, a voltage regulating device, a partition plate, a voltage regulating knob, a fixed coil device and a connecting wire, wherein the voltage regulating knob is arranged on the transformer shell; the left side in the transformer shell is provided with a voltage regulation and control device, the front side of the voltage regulation and control device is provided with an electric shock prevention shell, a glass window and a voltage regulation and control knob are arranged on the electric shock prevention shell, the voltage regulation and control knob is connected with the internal structure of the voltage regulation and control device, and the voltage regulation and control device also comprises a voltmeter; the right side in the transformer shell is provided with a fixed coil device which is used for connecting a coil, and an iron core is arranged in the coil; the voltage regulation and control device is connected with the fixed coil device through a connecting wire; and a partition plate is arranged between the voltage regulation and control device and the fixed coil device. The invention avoids the problem of electric shock caused by regulation and control, is convenient to operate, and is provided with the heat dissipation plate to prevent the internal temperature of the transformer from being overhigh.

Description

Voltage-adjustable transformer

Technical Field

The invention belongs to the field of voltage-adjustable transformers, and particularly relates to a voltage-adjustable transformer.

Background

A transformer is a device that transforms ac voltage, current and impedance, and when ac current flows through a primary winding, ac magnetic flux is generated in an iron core, which induces voltage (or current) in a secondary winding. The transformer consists of an iron 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. In a generator, an electric potential is induced in a coil, whether the coil is moved through a magnetic field or the magnetic field is moved through a stationary coil, in both cases the value of the flux is constant, but the amount of flux linked to the coil varies, which is the principle of mutual induction. The transformer is a device for transforming voltage, current and impedance by utilizing the electromagnetic mutual inductance effect.

Transformers work primarily using the principle of electromagnetic induction. The method comprises the following steps: when an alternating current voltage U1 is applied to the primary side of the transformer, the current flowing through the primary winding is I1, the current can generate alternating magnetic flux in the iron core, so that the primary winding and the secondary winding are in electromagnetic connection, according to the principle of electromagnetic induction, the alternating magnetic flux can induce electromotive force through the two windings, the electromotive force is proportional to the number of turns of the windings and the maximum value of main magnetic flux, the voltage on the side with more turns of the windings is high, the voltage on the side with less turns of the windings is low, when the secondary side of the transformer is open-circuited, namely the transformer is unloaded, the voltage on the primary side and the voltage on the secondary side are proportional to the number of turns of the secondary winding, namely U1/U2 is N1/N2, but the primary. We therefore improve a tuneable transformer.

Disclosure of Invention

In order to solve the technical problem, the invention provides a voltage-adjustable transformer, which comprises a transformer shell, a voltage regulation and control device, a partition plate, a voltmeter, a glass window, an electric shock prevention shell, a voltage regulation and control knob, a fixed coil device, a coil, an iron core and a connecting wire, wherein the voltage regulation and control device is arranged on the transformer shell; the transformer comprises a transformer shell, a voltage regulation device, a voltage protection shell, a glass window and a voltage regulation knob, wherein the transformer shell is rectangular, a heat dissipation plate is arranged on the back surface of the transformer shell, the voltage regulation device is arranged on the left side inside the transformer shell, the voltage regulation device is rectangular in shape, the electric shock protection shell is arranged on the front surface of the voltage regulation device, the electric shock protection shell is provided with the glass window and the voltage regulation knob, the voltage regulation knob is connected with the internal structure of the voltage regulation device, and the voltage regulation device; the right side in the transformer shell is provided with a fixed coil device which is used for connecting a coil, and an iron core is arranged in the coil; the voltage regulation and control device is connected with the fixed coil device through a connecting wire; and a partition plate is arranged between the voltage regulation and control device and the fixed coil device.

Preferably, the length, width and height of the rectangle of the voltage regulation and control device are smaller than those of the rectangle of the transformer shell.

Preferably, the material of protection against electric shock shell is insulating material.

Preferably, the wire wound on the coil is a copper wire.

Preferably, the number of the voltage regulating knobs and the number of the coils are three, one coil in the middle of the three coils is a primary coil, and the coils on two sides are secondary coils.

Compared with the prior art, the invention has the beneficial effects that: the externally mounted of voltage regulation and control device has the protection against electric shock shell, installs the regulation and control voltage knob on the protection against electric shock shell, and the user can come control voltage through rotating the regulation and control voltage knob, can also look over the voltage condition in the inside voltmeter through the glass window on the protection against electric shock shell, and the regulation and control voltage has avoided the problem because of regulating and controlling and leading to the electric shock like this, and the operation of being convenient for to install the heating panel and can prevent that the transformer inside temperature is too high.

Drawings

Fig. 1 is a schematic diagram of a voltage-regulated transformer.

In the figure: 1-a transformer housing; 2-a voltage regulation device; 3-a separator; 4-a voltmeter; 5-a glass window; 6-electric shock prevention shell; 7-a first regulated voltage knob; 8-a second regulated voltage knob; 9-a third regulation voltage knob; 10-fixing the coil arrangement; 11-a primary coil; 12 a first secondary coil; 13-a second secondary coil; 14-a core; 15-connecting the wires.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is further described below:

example (b):

as shown in fig. 1, a voltage-adjustable transformer comprises a transformer housing 1, a voltage regulation device 2, a partition plate 3, a fixed coil device 10 and a connecting wire 15; the transformer shell 1 is rectangular in shell shape, and a heat dissipation plate is arranged on the back of the transformer shell; the transformer housing 1 is internally divided into a left side and a right side: the left side in the transformer shell 1 is provided with a voltage regulation and control device 2, the voltage regulation and control device 2 is rectangular in appearance, the front side of the voltage regulation and control device 2 is provided with an electric shock prevention shell 6, the electric shock prevention shell 6 is provided with a glass window 5, a first regulation and control voltage knob 7, a second regulation and control voltage knob 8 and a third regulation and control voltage knob 9, the first regulation and control voltage knob 7, the second regulation and control voltage knob 8 and the third regulation and control voltage knob 9 are all connected with the internal structure of the voltage regulation and control device 2, and the voltage regulation and control device also comprises a voltmeter 4; a fixed coil device 10 is arranged on the right side inside the transformer shell 1 and is respectively connected with a primary coil 11, a first secondary coil 12 and a second secondary coil 13, the primary coil 11 is positioned between the first secondary coil 12 and the second secondary coil 13, and iron cores are arranged inside the primary coil 11, the first secondary coil 12 and the second secondary coil 13; the voltage regulation and control device 2 is connected with the fixed coil device 10 through a connecting lead; a partition plate 3 is arranged between the voltage regulation device 2 and the fixed coil device 10.

Specifically, a user controls the voltage by rotating a first voltage regulation and control knob 7, a second voltage regulation and control knob 8 and a third voltage regulation and control knob 9 on an external electric shock prevention shell 6 of the voltage regulation and control device 2, and can observe the change condition of the voltmeter 4 through the glass window 5, at the moment, the voltage regulation and control device 2 regulates and controls the change of a primary coil 11, a first secondary coil 12 and a second secondary coil 13 on a fixed coil device 10 connected with the voltage regulation and control device, so that the effect of changing the voltage is achieved.

Specifically, the length, width and height of the rectangle of the voltage regulation and control device are smaller than those of the rectangle of the transformer shell.

Specifically, the electric shock prevention shell is made of an insulating material.

It should be noted that, in this document, moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A voltage-adjustable transformer is characterized by comprising a transformer shell, a voltage regulation and control device, a partition plate, a voltmeter, a glass window, an electric shock prevention shell, a voltage regulation and control knob, a fixed coil device, a coil, an iron core and a connecting wire; the left side in the transformer shell is provided with a voltage regulation and control device, the front side of the voltage regulation and control device is provided with an electric shock prevention shell, a glass window and a voltage regulation and control knob are arranged on the electric shock prevention shell, the voltage regulation and control knob is connected with the internal structure of the voltage regulation and control device, and the voltage regulation and control device also comprises a voltmeter; the right side in the transformer shell is provided with a fixed coil device which is used for connecting a coil, and an iron core is arranged in the coil; the voltage regulation and control device is connected with the fixed coil device through a connecting wire; and a partition plate is arranged between the voltage regulation and control device and the fixed coil device.

2. A voltage tunable transformer according to claim 1, wherein the transformer housing has a rectangular shell shape, and the voltage control device has a rectangular outer shape, and the length, width and height of the rectangular shape of the voltage control device are smaller than those of the rectangular shape of the transformer housing.

3. A voltage tunable transformer according to claim 1, wherein a heat sink is further installed on the back of the transformer housing for preventing the temperature inside the transformer from being too high.

4. The voltage tunable transformer of claim 1, wherein the shell is made of an insulating material.

5. A voltage tunable transformer according to claim 1, wherein the wire wound around the coil is a copper wire.

6. The voltage-tunable transformer of claim 1, wherein the number of the voltage-adjusting knobs and the number of the coils are three, and one of the three coils is a primary coil, and the coils on two sides are secondary coils.