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Coil device

A coil device and lead wire technology, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor core, etc., can solve difficult terminal block positioning, insufficient terminal block retention, and low height of coil device Difficult to achieve etc.

Active Publication Date: 2020-07-07
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to position the terminal block along the reel direction of the bobbin
[0004] In addition, in the conventional coil device disclosed in Patent Document 2, there is a problem that since the terminal block is attached to the upper surface of the flange portion of the bobbin along the winding axis direction of the bobbin, if the winding If the thickness of the flange portion of the frame is sufficiently large or the reinforcement rib is not provided, the retention of the terminal block is likely to be insufficient.
In addition, it is also difficult to reduce the height of the coil device

Method used

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  • Coil device
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Examples

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Embodiment Construction

[0062] Hereinafter, the present invention will be described based on the embodiments shown in the drawings.

[0063] Figure 1A and Figure 1B The shown transformer 10 as the coil device of the present embodiment is used for, for example, an EV (Electric Vehicle), a PHV (Plug-in Hybrid Vehicle), or an on-board vehicle for commuting (vehicle). A charger, or a power supply circuit of household or industrial electrical equipment, or a power supply circuit of computer equipment, etc. like figure 2 As shown, the transformer 10 has a bobbin 20, a coil portion 30, magnetic cores (split cores) 40a and 40b, and terminal blocks 50 and 150 as lead wire arrangement blocks.

[0064] In addition, in the drawings, the X-axis, Y-axis, and Z-axis are perpendicular to each other, the Z-axis is parallel to the winding axis of the coil part 30, and the X-axis and the dividing line dividing the pair of split cores 42a, 42a or the pair of split cores 42b, 42b directions are roughly the same. I...

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PUM

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Abstract

The present invention provides a coil device (10) with a high degree of design freedom and easy positioning and low height. The coil device (10) has a bobbin (20) on which a first lead (36) constituting a first coil part (32) and a second lead (38) constituting a second coil part (34) are wound; a terminal block (50), which leads out a pair of first lead parts (36a, 36b) of the first lead (36); aterminal block (501) which leads out a pair of second lead parts (38a, 38b) of the second lead (38). The terminal block (50, 150) and the bobbin (20) are formed as separate bodies, and are installed at a terminal connecting portion (22, 122) of the bobbin (20) from a direction substantially perpendicular to the winding axis Z of the bobbin. The terminal blocks (50, 150) are provided with lead guide passages (52d, 152d) guiding the lead parts (36a, 36b, 38a, 38b) to a direction separated from each other from the central part.

Description

technical field [0001] The invention relates to a coil arrangement which is preferably used as, for example, a transformer or the like. Background technique [0002] Patent Document 1 discloses a coil device including a terminal block from which a pair of lead portions of lead wires are drawn out. However, in the coil device of Patent Document 1, since the terminal block and the bobbin are integrally formed, when the specifications of the terminal block are changed, the entire bobbin frame has to be remade, and the degree of freedom in design is low. [0003] In addition, as shown in Patent Document 2, there is also known a structure in which the terminal block and the bobbin are separately molded and mounted. However, at present, the terminal block is mounted from above along the direction of the reel of the bobbin. Therefore, it is difficult to position the terminal block along the winding axis direction of the bobbin. [0004] In addition, in the conventional coil devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/26H01F27/28H01F27/30
CPCH01F27/26H01F27/30H01F27/28
Inventor 熊谷胜比嘉晋士岩仓正明
Owner TDK CORPARATION