JPH0644085Y2 - Coil parts - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention relates to a coil component used for signal processing, timing adjustment, etc. in televisions, videos, computer-related equipment, measuring equipment, medical equipment.

2. Description of the Related Art Conventionally, there is a bobbin that obtains one or more coils by winding. This bobbin had a structure as shown in FIG. This bobbin 1 is made of an insulating resin in which a plurality of winding grooves 3 are formed by a plurality of flanges 2. A winding is applied to this bobbin 1 to connect the ends of the windings to the bobbin terminal 5, so that at least one bobbin is formed. The coil 4 is formed to form the coil component 6. In addition, convex portions 7 are provided on both sides in the width direction of the bobbin 1 on the upper side of each collar 2, and as shown in FIG. 4, the convex portions 7 can be used to relay the winding and reverse the winding direction. Therefore, it is not necessary to use the bobbin terminal 5 for relaying and inversion, the bobbin terminal 5 can be effectively used, and the coupling coefficient between the coils 4 can be arbitrarily set in polarity and value by the winding. It has a structure.

Further, it is installed so that the winding direction can be reversed by the convex portion 7 regardless of the number of windings, and the convex portion 7 can be projected even when the bobbin width dimension is fully wound as shown in FIG. It is installed on both sides as thin as possible within a range in which the mechanical strength, heat resistance, etc. of the convex portion 7 are maintained to some extent.

Problems to be Solved by the Invention In such a conventional configuration, when winding is performed, the convex portions 7 are installed as thin as possible on both sides in the width direction of the bobbin. There has been a problem that the winding width of the winding is widened, the variation of the inductance value due to the winding is increased, and the defect rate is increased.

The present invention eliminates the above-mentioned conventional drawbacks and provides a coil component capable of preventing the winding width of a winding from expanding even if the number of turns is increased.

Means for Solving the Problems The technical means of the present invention for solving the above problems is to provide a projecting portion at a portion where a convex portion of each collar is installed to prevent the winding width of a winding from widening. It is what

Action With the above configuration, since the wound copper wire is held by the protrusions, the winding width does not become wider than the pitch of each protrusion, and the winding width is the same as the pitch dimension of each protrusion. .

Embodiment One embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2 show a coil component according to an embodiment of the present invention. In the drawings, 11 is a bobbin made of an insulating material such as synthetic resin. The bobbin 11 has a plurality of collars at both ends and an intermediate portion. 12 has a plurality of winding grooves 13 formed between the flanges 12. A bobbin terminal 14 is provided on the front or back of the collar 12.
And projecting parts 15 and 16 projecting upward are formed at both ends of the upper surface of the collar 12, and projecting parts 17 projecting upward are provided in an intermediate part between the projecting parts 15 and 16. Has been.

A winding is wound around the winding groove 13 of the bobbin 11 to form a coil 18, and this winding is connected to the bobbin terminal 14 and hooked on the convex portions 15 and 16 of the collar 12. The winding direction can be reversed.

When the bobbin 11 is wound, as shown in FIGS. 2A and 2B, it is squeezed by the protruding portion 17, so that the winding width a of the winding of each winding groove 13 is the distance b between the protruding portions 17 of the collars 12. The size is equal to and constant. Since the protruding portion 17 protrudes to the same height as the height h of the bobbin 11, even if the bobbin 11 is wound to the full size, the winding width should be the same as the winding width when the number of turns is small. You can

Since the projections 15 and 16 and the projection 17 are sufficiently spaced from each other, the projection 17 does not cause any trouble when the winding direction is reversed by using the projections 15 and 16.

The above is one embodiment of the bobbin of the present invention, and it goes without saying that the design can be changed within a range that does not impair the gist of the present invention. For example, in the above-mentioned embodiment, the convex portions 15 and 16 are installed on the upper portion of the bobbin 11, but this location is arbitrary, and similarly, the location of the projecting portion 17 is also arbitrary and is not limited.

Further, the number of winding grooves, the number of bobbin terminals, the shapes of the protrusions and protrusions, the number of flanges, and the like are arbitrary. Further, it goes without saying that the present invention can be applied and designed as a part of a coil composite component in combination with other electric elements such as an LC composite component and an LR composite component within the range not impairing the gist of the present invention.

Effect of the Invention As described above, the effect obtained by the present invention is that by making the winding width of the winding constant, it is possible to suppress the variation of the inductance value obtained by the winding and reduce the defective rate. The cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a coil component showing an embodiment of the present invention,
2A and 2B are a top view and a side view of the coil component, FIG. 3 is a perspective view of a coil component using a conventional bobbin, and FIG. 4 is a partially enlarged perspective view of an example of a winding. FIG. 5 is a side view of a coil component using a conventional bobbin, and FIG. 6 is a partially enlarged view of the top view. 11 …… bobbin, 12 …… tsuba, 13 …… roll groove, 14 …… bobbin terminal, 15,16 …… projection, 17 …… protrusion, 18 …… coil.

Claims (1)

[Scope of utility model registration request] 1. One or more collars forming one or more winding grooves to which windings are applied, bobbin terminals planted in the collars to which the windings are connected, and both ends of one side of the collars. A coil component obtained by winding a coil around a bobbin provided with a protrusion for reversing the winding, and a protrusion for making the winding width of the winding constant, which is provided in the middle of the protrusion on one side of the collar.