JPH0582014U - Multiple bobbins - Google Patents

Abstract

(57) [Abstract] [Purpose] A bobbin for a winding coil used in an electric circuit such as an electromagnetic delay line composed of a plurality of inductance elements, the electric circuit being manufactured at low cost and having good characteristics. The resulting multiple bobbin is provided. [Structure] Collars (2), (2) at both ends of the winding part (1)
A plurality of bobbins (4) are provided, and a plurality of flexible connecting portions (3) are provided between the adjacent brim portions (2), (2) of adjacent bobbins (4), (4). (3) ... are connected one after another in the axial direction to be integrated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a multiple bobbin for a winding coil used in an electric circuit such as an electromagnetic delay line including a plurality of inductance elements.

[0002]

[Prior Art]

 Conventionally, as shown in FIG. 4, the electromagnetic type delay line uses a plurality of bobbins 4 each having a coil portion 6 and a collar portion 2 on both ends of a coil 6, or a plurality of bobbins 4 as shown in FIG. A plurality of the same bobbins 4, 4, 4, 4 were connected in the axial direction to use an integrally formed multiple bobbin.

[0003]

[Problems to be solved by the device]

 The use of a plurality of bobbins 4, 4, 4, 4 as shown in FIG. 4 has the following drawbacks. (A) Since winding is performed on a plurality of bobbins 4 and the windings are mounted on the substrate 7, it takes man-hours and cannot be manufactured at low cost. (B) When the bobbin 4 was small, it was difficult to handle. On the other hand, in the case of using a multiple bobbin formed by integrally connecting a plurality of bobbins 4, 4, 4, 4 in the axial direction as shown in FIG. However, it has the advantage that it can be manufactured at low cost and is easy to handle. However, since this multiple bobbin is connected in the axial direction, there is magnetic circuit coupling between the adjacent coils 6 and 6, and when an electromagnetic delay line is formed, characteristically, the output of It had the drawbacks of a poor start-up and large ringing. This is very difficult to improve because it depends on the structure of the magnetic circuit. The present invention has been made to eliminate these drawbacks.

[0004]

[Means for Solving the Problems]

 A multiple bobbin according to the present invention will be described with reference to FIGS. 1, 2 and 3 corresponding to the embodiment. A plurality of bobbins 4 having flanges 2 and 2 at both ends of a winding part 1 are connected in series to form adjacent bobbins 4 and 4. The flange portions 2 and 2 that are in contact with each other are integrally connected by a plurality of flexible connecting portions 3, 3 ...

[0005]

[Action]

 At the time of winding, the bobbin 4 is integrally connected in the axial direction, and the coil 6 is formed by winding around the winding portion 1 of the multiple bobbin. When mounting a multi-threaded bobbin to form an electromagnetic delay line, a plurality of flexible connecting portions for connecting the flange portions 2 and 2 between the adjacent bobbins 4 and 4 are mounted. 3 and 3 are left, one is left between the bobbins 4 and 4, and the other is removed. Then, it is possible to freely set the angle formed by the axes of the adjacent bobbins 4 without separating the individual bobbins 4. In this way, the angle formed by the axes of the adjacent bobbins 4 can be freely set, so that the magnetic circuit coupling between the adjacent coils 6 is reduced and the characteristics are improved.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an embodiment according to the present invention. A plurality of bobbins 4 provided with flanges 2 and 2 at both ends of the winding portion 1 are connected, and a plurality of flexible connecting portions 3 and 3 are provided between the flanges 2 and 2 of the adjacent bobbins 4 and 4.・ ・ Connect with the axial direction one after another to integrate them. The present invention has the above structure. When the multiple bobbins of the present invention are wound, the winding portion 1 is wound while the individual bobbins 4 are integrally connected in the axial direction, and the coils 6 are formed one after another. When forming the electromagnetic delay line, a plurality of flexible connecting portions 3, 3 ... For connecting between the brim portions 2, 2 of the adjacent bobbins 4, 4 of the wound bobbin are connected. , Leave one for each of bobbins 4 and 4 and remove the others. Then, each bobbin 4 is connected to the adjacent bobbin 4 by one connecting portion 3, and since this connecting portion 3 is flexible, the individual bobbins 4 do not separate from each other and the adjacent bobbins 4 are not separated from each other. The angle formed by the axes can be set freely. In this way, when mounting the multiple bobbins wound on the circuit board 7, the angle of the axis of the adjacent bobbins 4 can be freely set, so that the distance between the adjacent coils 6 can be increased. Magnetic circuit coupling can be reduced. For example, as shown in FIG. 2, if the axes of the adjacent bobbins 4 are made orthogonal to each other, the magnetic circuit coupling between the adjacent coils 6 is at a negligible level. Note that, as shown in FIG. 3, the collar portion 2 may be provided with a terminal 5 if necessary.

[0007]

[Effect of the device]

 As described in detail above, according to the present invention, (a) since a plurality of bobbins are integrally connected during winding, winding is easy, the number of winding steps is small, and the cost is low. Can be manufactured. (B) At the time of mounting, since the individual bobbins are connected by one connecting portion, the work is easier and the manufacturing cost is lower than mounting one bobbin one by one. (C) Even if the number of turns of the coil of each bobbin is changed to change the inductance, the bobbins are connected, and therefore the arrangement is not wrong. (D) Compared with a multi-series bobbin in which the bobbins are integrally connected in the axial direction, the angle formed by the axes of the adjacent bobbins can be changed, so that the magnetic coupling between the adjacent coils can be reduced, which is excellent. The characteristics can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a plan view showing a mounting state on the circuit board of the present invention.

FIG. 3 is a perspective view of another embodiment of the present invention.

FIG. 4 is a plan view showing a mounting state on a circuit board of a conventional example.

FIG. 5 is a plan view showing a mounting state on another conventional circuit board.

[Explanation of symbols]

 1 winding part 2 collar part 3 connecting part 4 bobbin 5 terminal 6 coil 7 circuit board

Claims (1)

[Scope of utility model registration request] 1. A collar portion (2) at both ends of the winding portion (1),
A plurality of bobbins (4) provided with (2) are connected in series, and a plurality of flexible connecting parts (2) between adjacent flanges (2), (2) of adjacent bobbins (4), (4) are connected. A multiple bobbin characterized in that it is integrally connected by axially connecting with 3), (3), and so on.