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Line filter

A filter and circuit technology, applied in coils, circuits, transformer/inductor cores, etc., to achieve the effect of reducing cost, reducing height, and shortening operation time

Active Publication Date: 2013-04-17
TOKYO PARTS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010]However, since the frame of the terminal block inserted into a part of the bobbin is placed above the outer circumference of the bobbin, the height above the terminal block becomes high, which not only makes the circuit The height of the filter is increased, and the molding resin of the frame constituting the terminal block is increased, which increases the cost

Method used

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Embodiment Construction

[0025] Embodiments of the present invention will be illustrated below with reference to the accompanying drawings. However, the materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto unless otherwise specified.

[0026] figure 1 A perspective view showing a line filter according to an embodiment of the present invention before assembly; figure 2 It is a front view, a sectional view and a side view of the completed drawing of this embodiment; image 3 A front view, a sectional view and a side view showing the bobbin and the closed magnetic circuit core in the assembly process of this embodiment; Figure 4 A front view, a cross-sectional view, and a side view of the terminal block according to this embodiment are shown.

[0027] Figure 1 to Figure 4 The line filter in has: a bobbin 13 wound with a first coil 10 and a second coil 11 and having a through hole ...

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PUM

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Abstract

The present invention provides a line filter which prevents the rotation of bobbin when the ends of the coil are bound to the terminals, reduces the height of line filter and reduces the cost. The line filter comprises the following components: the bobbin (13) which is provided with a through hole (12) in the reel direction and is provided with a plurality of flanges; a first coil (10) and a second coil (12) which winds the bobbin; a closed magnetic circuit core (14) which inserts one magnetic pin (14A) into the through hole of the bobbin; and a terminal seat (15) which carries the bobbin andthe closed magnetic circuit core and is provided with ends (16) connected with the terminal of the coil. The terminal seat is provided with a plate shaped part (21) which is inserted into a clearancepart (17) between the other magnet pin (14B) of the closed magnetic circuit core and the outer periphery of the bobbin. The plate shaped part is provided with a blocking part (25) which is blocked with a groove part (24) formed between the flanges of the bobbin and prevents the rotation of the bobbin, and a positioning part (23) which fixes the position of the bobbin.

Description

technical field [0001] The present invention relates to line filters used in various electronic devices and the like. Background technique [0002] Conventionally, Patent Document 1 describes a line filter comprising a bobbin wound with a first coil and a second coil and having a through hole in the direction of the winding axis, and a closed magnetic coil inserted into the through hole of the bobbin. A circuit magnetic core, a terminal base for installing a bobbin and a closed magnetic circuit magnetic core, connecting the first coil and the second coil, and a terminal planted on the terminal base. [0003] Such a line filter is assembled in this way: install two combined bobbins on a magnetic foot of the closed magnetic circuit magnetic core, and make the bobbin center on a magnetic foot by rotating the gear arranged on the side of the bobbin Rotate, wind the coil. After winding, install the bobbin with the coil and the closed magnetic circuit core on the terminal base,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F17/04H01F27/30H01F27/24H01F27/29
CPCH01F5/02
Inventor 朝仓一彰
Owner TOKYO PARTS IND CO LTD