JPS6321060Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to an improvement of a switch structure in which a plurality of switch elements each having a switching element and a drive coil are arranged in parallel.

(b) Background of the technology In recent years, as communication equipment has become smaller and lighter, the switches installed in these equipment are also equipped with switching elements, each of which has a switching element and a drive coil, arranged in close proximity to each other, such as a yoke, etc. It is integrated into a common element to reduce weight and size.

(c) Prior art and problems The structure of these switches will be explained with reference to the perspective view of FIG. 1 showing important points.

In Fig. 1, a switching element (not shown) (for example, a reed piece sealed in a glass tube) is inserted into a hollow part 5 of a bobbin 2, and a drive coil (described later) is wound around the outer periphery. It is a switch element. The bobbin 2 is provided with a substantially rectangular plate-shaped lower flange 3 on the lower end surface of the main body, which has a hollow elliptical cross section in the direction perpendicular to the axis, and a substantially rectangular plate-shaped upper flange 4 on the upper end surface. A pair of winding terminals 6 are fixed to one end surface of the short side of the lower flange 3 in a direction parallel to the lower flange 3, and a pair of winding terminals 7 are fixed to protrude from the other end surface facing each other. There is.

A primary drive coil 8 is wound around the outer periphery of the main body of the bobbin 2 in a predetermined manner, and the winding start and winding ends are wound around each of a pair of winding terminals 6 and fixed, for example, by soldering. . Also, the primary drive coil 8
A secondary drive coil 9 is wound in a predetermined manner on the upper layer, and the winding start and winding ends are wound around each of a pair of winding terminals 7 and fixed thereto.

A plurality of switch elements 1 configured as described above
are placed in close proximity and in parallel on a mounting plate (not shown) (four switch elements 1 are shown in the figure), and then a pair of strip-shaped yoke plates 10 are inserted on both sides of the secondary drive coil 9. By appropriate means, as if
Each switch element 1 is fixed to a bobbin 2, thereby forming a switch including a plurality of switch elements 1.

However, in such a switch, the bobbin of each switch element is independent, so the winding and assembly work is complicated, and the drive coil is
When winding with an NC winding machine, the terminal of the drive coil is automatically wound around the winding terminal because the winding terminal protrudes in a direction perpendicular to the rotation direction of the nozzle bit of the NC winding machine. There is a problem of inefficiency in that it is impossible to do so.

(d) Purpose of the invention In view of the above-mentioned problems, the purpose of the invention is to integrate the bobbins of each switch element and change the direction in which the winding terminals protrude, thereby making the winding and assembly work easier and more efficient. The object of the present invention is to provide a low-cost switch structure.

(e) Structure of the device In order to achieve this object, the device has a structure in which the switching element is inserted into a hollow part on the upper surface of a plate-shaped lower flange common to each switch element, and the driving coil is arranged around the outer periphery. A bobbin in which bobbin bodies to be wound are arranged side by side and an upper flange with a corner cut out is formed on the upper end surface of each bobbin body, and a lower flange corresponding to each bobbin body. The winding terminal is provided with a winding terminal protruding parallel to the axis of the bobbin body at a position on the upper surface a predetermined distance larger than the maximum external dimension of the upper flange. The motion enables efficient winding of the drive coil and winding of the end of the coil around the winding terminal.

(f) Embodiments of the invention The invention will be described in detail below with reference to illustrated embodiments.

FIG. 2 is a perspective view of the bobbin section of a switch according to an embodiment of the present invention.

In FIG. 2, reference numeral 11 denotes a lower flange common to each of the rectangular plate-shaped switch elements. Perpendicularly to the upper surface of the lower flange 11, there are a plurality of bobbin bodies 12 (four in the figure) each having a hollow oval cross section in the direction orthogonal to the axis.
They are arranged in parallel at the desired pitch. An upper flange 13 is provided on the upper end surface of each bobbin body 12, and has an approximately rectangular shape with four notched corners.
Its maximum external dimension is D. An opening/closing element (not shown) is inserted into the hollow portion 14 of the bobbin body 12.

On one long side of the lower flange 11, at a position separated by a predetermined distance larger than the maximum external dimension D of the upper flange 13, there is a winding terminal 15 made of a pair of conductors corresponding to each bobbin body 12. is provided to protrude vertically. Lower flange 11
Similarly, a pair of winding terminals 16 are provided on the other long side of the wire.

A primary drive coil 17 is wound around the outer periphery of each bobbin body 12 in a predetermined manner, and the winding start and winding ends are respectively wound around a pair of winding terminals 15 and fixed, for example, by soldering. ing. Further, a secondary drive coil 18 is provided above the primary drive coil 17.
is wound in a predetermined manner, and the ends at the start and end of the winding are wound and fixed to each of the pair of winding terminals 16. External leads (not shown) are wound around these winding terminals 15 and 16, and drive coils 17 and 18 are driven. Note that the lower flanges 11 on both sides of the lower end of each bobbin body 12 are provided with protrusions 19 on which the winding material can be hooked, and the primary drive coil 17 and the secondary drive coil 18
The winding start of the bobbin body 12 is easily located at the lower end of the bobbin body 12.

A pair of yoke plates 20 made of strip-shaped magnetic material are fixed to the upper flange 13 and lower flange 11 of each switch element by appropriate means so as to be inserted on both sides of the secondary drive coil 18, A switch is composed of a plurality of switch elements.

Lower flange 11 with the switch structure as described above.
Since each switch element is integrated, handling and assembly work are easy. In addition, if the bobbin of this invention is attached to a multi-axis NC winding machine,
The nozzle bit 21 that rotates around the outer periphery of each bobbin body 12 allows winding to be performed on a plurality of bobbin bodies at the same time, and furthermore, the axial directions of the bobbin body 12 and the winding terminals 15 and 16 are aligned. Therefore, by moving the mounting table of the NC winding machine left and right and back and forth, the ends of each drive coil can be automatically wound around the required winding terminals using the nozzle bit 21.

Note that the present invention is not limited to the illustrated embodiment; for example, the respective switch elements may be arranged in a staggered manner on the lower flange. Alternatively, the winding terminals may be arranged in a concentrated manner on the lower flange, or other modifications may be made as appropriate within the scope of the utility model registration claims.

(g) Effects of the invention As explained above, the present invention integrates the bobbins of each switch element and further improves the protruding direction of the winding terminals, which streamlines the winding assembly work and reduces costs. This switch structure has excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing important parts of a conventional switch structure, and FIG. 2 is a perspective view of a bobbin portion of a switch structure according to an embodiment of the present invention. In the figure, 1 is a switch element, 2, 12 are bobbin bodies, 3, 11 are lower flanges, 4, 12 are upper flanges, 6, 7, 15, 16 are winding terminals, 8, 1
7 is a primary drive coil, 9 and 18 are secondary drive coils, 10 and 20 are yoke plates, and 21 is a nozzle bit.

Claims (1)

[Scope of utility model registration request] In a switch structure in which a plurality of switch elements each having a switch element and a drive coil are arranged in parallel, the switch element is inserted into a hollow part on the upper surface of a plate-shaped lower flange common to each of the switch elements, Corresponds to a bobbin in which bobbin bodies around which the drive coil is wound are arranged side by side, and an upper flange with a corner notched is formed on the upper end surface of each bobbin body, and each bobbin body. and a winding terminal provided on the upper surface of the lower flange at a position separated by a predetermined distance larger than the maximum external dimension of the upper flange and protruding parallel to the axis of the bobbin body. A switch structure that allows