Small-sized power transformer

A technology of power transformers and transformers, which is applied in the direction of transformers, variable transformers, inductors, etc., and can solve the problem that the output voltage cannot be continuously adjusted

Active Publication Date: 2011-10-05
ZHEJIANG JULION TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the output voltage of the existing small power transformers cannot be continuously adjusted, the present invention provides a small power transformer, which can not only fix the output, but also continuously adjust the output

Method used

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Embodiment Construction

[0021] exist Figure 2-13 In the shown embodiment, the primary winding, the first group of secondary windings (10) and the second group of secondary windings (11) of the small power transformer are respectively wound on the silicon steel sheet (20), and ensure that the first group of secondary windings (10) and the second group of secondary windings (11) have the same number of turns. When winding the second group of secondary windings (11), clamp the support block (2) between the first group of secondary windings (10) and the second group of secondary windings (11), so that the second group of secondary windings ( 11) Protrusions appear in the coil to ensure good contact with the exposed part of the second group of secondary windings (11) when the carbon brush rotates. Clamp the silicon steel sheet (20) with the transformer front end frame (1) and the transformer rear end frame (22), then fasten with the screw rod (26) and the nut (27). Install the bearing (21) on the beari...

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Abstract

The invention relates to a small-sized power transformer, which can simultaneously output two paths of voltages with the fixed value and a path of continuous adjustable voltage and is beneficial to solving of the problem that the traditional transformer is only provided with a fixed output or an adjustable output. According to a design provided by the invention, the small-sized power transformer is provided with two groups of secondary windings with the same number of turns and simultaneously is provided with an adjusting device; and the two groups of secondary windings realize the continuous adjustment under the action of the adjusting device. Coil taps of the two groups of secondary windings of the transformer are respectively led out so as to serve as two fixed outputs.

Description

Technical field [0001] The invention relates to a small power transformer, which can output both a fixed voltage and a continuously adjustable voltage. Background technique [0002] At present, the structure of the known small power transformer is composed of an iron core, a silicon steel sheet, a primary winding (the number of turns N 1 ), secondary winding (number of turns N 2 )composition. The primary winding is connected to AC voltage U i , the output voltage U of the secondary winding o with input voltage U i The relation is U o =N 2 / N 1 × U i . When the input voltage U i When fixed, the output voltage U o The size of the primary winding and the secondary winding turns ratio (N 2 / N 1 ) is related, the turns ratio of known small power transformers (N 2 / N 1 ) is fixed, so the output voltage is fixed. However, the known voltage regulator not only has a complex structure, but also has a large volume and only has an adjustable output without a fixed output...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F29/06H01F27/28
Inventor 潘峰
Owner ZHEJIANG JULION TECH DEV CO LTD
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