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Transformer and power supply device provided with same

A technology for transformers and rectifier circuits, applied in transformers, transformer/inductor components, fixed transformers, etc., can solve the problems of longer current paths, larger losses, and low workability, reducing current loss and improving heat dissipation. Effect

Active Publication Date: 2022-03-25
TDK CORPARATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the above-mentioned transformer, one end of each of the two secondary coils is fastened with a screw. Therefore, in a structure in which the fastened part is screwed to another component, there is a problem that the workability is low and it must be installed on the body of the above-mentioned transformer. The problem that the board has a space for the fastening part of the two secondary coils
In addition, in the above-mentioned transformer structure, when one end of each of the two secondary coils is connected by a screw and the other end of the two secondary coils is used as an output, there may be two secondary coils The problem that the current path of the part where one end of each is connected by a screw becomes longer and the loss becomes larger

Method used

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  • Transformer and power supply device provided with same
  • Transformer and power supply device provided with same
  • Transformer and power supply device provided with same

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Embodiment Construction

[0017] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Here, in the description of the drawings, the same reference numerals are assigned to the same or corresponding elements, and overlapping descriptions are omitted.

[0018] figure 1 It is a perspective view showing a schematic configuration in the case of full-bridge rectification in the transformer according to the present embodiment. figure 2 It is a circuit diagram showing a schematic configuration in the case of full-bridge rectification in the transformer according to the present embodiment. image 3 It is a perspective view showing a schematic configuration in the case of center-tap rectification in the transformer according to the present embodiment. Figure 4 It is an exploded perspective view showing a schematic configuration of a secondary coil and a bus bar in the case of center-tap rectification in the transformer according to the presen...

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Abstract

The invention relates to a transformer and a power supply apparatus including the same. In a transformer, a first secondary coil has a first flat coil, a second flat coil, and a first holding portion formed between one end of the first flat coil and one end of the second flat coil. The second secondary coil has a third flat coil, a fourth flat coil, and a second holding portion formed between one end of the third flat coil and one end of the fourth flat coil, and the first secondary coil is disposed between the third flat coil and the fourth flat coil. The other end of the first flat coil and the other end of the third flat coil are in solder connection, the other end of the second flat coil and the other end of the fourth flat coil are in solder connection, and when the secondary-side rectifying circuit is a center-tapped rectifying circuit, the first holding part, the second holding part and the bus bar are in solder connection through connecting holes. When the secondary-side rectifying circuit is a rectifying circuit other than the center-tap rectifying circuit, the first holding portion and the second holding portion are solder-connected via the connection hole.

Description

technical field [0001] The present invention relates to a transformer and a power supply device including the same. Background technique [0002] Conventionally, as a transformer, a transformer having a primary coil and two secondary coils has been used. For example, Patent Document 1 discloses a transformer in which two secondary coils are fastened to each other by screws through fastening holes provided at respective one ends of the two secondary coils. [0003] In the above-mentioned transformer, one end of each of the two secondary coils is fastened with a screw. Therefore, in a structure in which the fastened part is mounted on another component with a screw, there is a problem that the workability is low and it is necessary to install the above-mentioned transformer. There is a problem that the substrate has a structure in which a space for fastening parts of the two secondary coils is drawn out. In addition, in the above-mentioned transformer structure, when one end...

Claims

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Application Information

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IPC IPC(8): H01F27/28H01F27/30H01F27/29H01F19/04H02M3/335
CPCH01F27/2847H01F27/2852H01F27/306H01F27/29H01F19/04H02M3/33523H01F2027/2857H01F2019/085H02M3/003H02M3/335H01F27/40H01F2027/408H02M7/043H01F30/00H02M7/003
Inventor 邹炼文秦庆鲁
Owner TDK CORPARATION
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