JPH0452968Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a coil mounting structure, and in particular, an automatic coil mounting structure even when there are many shapes and types of coils mounted on a printed circuit board housed in a tuner, etc. This invention relates to a coil mounting structure that can be handled by a mounting machine.

[Conventional technology]

Conventionally, the structure for mounting a coil on a printed circuit board has been as shown in FIG. 2 or 3. That is, FIG. 2 is a perspective view showing a first conventional example, and FIG. 3 is a perspective view showing a second conventional example. In Figure 2, 1 is the printed circuit board 2.
This coil 1 has both ends of the winding extending in the same direction to form lead parts 1a, 1a.
, and the lead portions 1a, 1a are connected to the mounting holes 2a, 2a of the printed circuit board 2, which are pre-drilled.
It is designed to be inserted into.

In the case of FIG. 3, 3 is a coil, and the lead parts 3a, 3a of this coil 3 are placed on the copper foil lands 4a, 4a (electrodes) of the printed circuit board 4, and the copper foil lands 4a are placed on the copper foil lands 4a, 4a (electrodes) of the printed circuit board 4. , 4a and the lead portions 3a, 3a of the coil 3 are soldered.

[Problem that the invention attempts to solve]

However, in the case of the first conventional example described above, it is difficult to handle and hold the coil 1 itself due to its springiness, and it is also difficult to keep the lead parts 1a, 1a parallel, so an automatic mounting machine is not used. Connect the lead parts 1a, 1a to the mounting hole 2 of the printed circuit board 2.
It has become very difficult to automatically insert data into A and 2a.

Furthermore, in the case of the second conventional example, the lead parts 3a, 3a of the coil 3 cannot be held and placed on the printed circuit board 4 by an automatic mounting machine due to its mounting structure. If the number of coil shapes increases, it becomes difficult for an automatic mounting machine to handle the situation.

Therefore, the present invention was devised by focusing on the problems of the conventional technology, and it solves the problems and automatically mounts coils with different diameters and numbers of turns even when mounting multiple types of coils on a printed circuit board. The purpose of this invention is to provide a coil mounting structure that can be handled by a machine.

[Means for solving problems]

In order to achieve this purpose, the coil mounting structure according to the present invention has an extension part formed at both ends of the coil in the same direction away from the winding axis of the coil, and a side opposite to the extension direction of the extension part. It is characterized by being placed and fixed on the electrodes of a printed circuit board.

[Effect]

By adopting the above-mentioned mounting structure, the automatic mounting machine can hold the extended portion of the coil, transport it onto the printed circuit board, and place it on the printed circuit board. The holding device only needs to be adjusted according to the length of the coil, making it extremely easy to automate the work of attaching the coil to the printed circuit board.

〔Example〕

Next, an example of implementation of the present invention will be described in detail with reference to FIG.

FIG. 1 is a perspective view showing a coil mounting structure according to the present invention, and numeral 10 in the figure is a coil. This coil 10 has a pair of extension parts 11, 11 formed in the same direction at both ends thereof in a direction away from the winding axis of the coil 10. Further, at both end portions of this coil 10, the insulation coating is peeled off from the above-mentioned extended portions 11, 11 and more than half the circumference of the winding following the extended portions 11, 11, and exposed portions 12, 12 are formed. The portions 12, 12 are soldered to copper foil lands (electrodes) 14, 14 formed on the printed circuit board 13.

In order to obtain such a coil mounting structure, the coil 10
This is done by holding the extension parts 11, 11 in an automatic mounting machine so as to pinch them, transporting them to a predetermined position on the printed circuit board 13, and placing them thereon.

That is, by using the extension parts 11, 11 as holding parts by the automatic mounting machine, even if the diameter or number of turns of the coil 10 differs, the automatic mounting machine can simply adjust it according to the length of the coil. .

In this embodiment, the exposed parts 12, 12 are formed over more than half the circumference of the winding, but the extension parts 11, 11 and the copper foil lands 14, 14 located on a straight line are It is also possible to expose only the abutting portion to facilitate soldering.

[Effect of idea]

As described above, according to the coil mounting structure according to the present invention, even if the coils mounted on the printed circuit board, such as tuners, come in a variety of shapes, the work can be easily performed using an automatic mounting machine. Ru.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a coil mounting structure according to the present invention, FIG. 2 is a perspective view showing a first conventional example, and FIG. 3 is a perspective view showing a second conventional example. DESCRIPTION OF SYMBOLS 10...Coil, 11...Extension part, 12...Exposed part, 13...Printed circuit board, 14...Copper foil land.

Claims (1)

[Claims for Utility Model Registration] (1) Extension parts are formed at both ends of the coil in the same direction away from the winding axis of the coil, and the opposite side of the extension part is placed on the electrode of the printed circuit board. A coil mounting structure characterized by being placed and fixed. (2) The installation of the coil according to claim 1, wherein the coil has an insulating film removed from more than half of the circumference at both ends of the coil, and is soldered onto an electrode. structure.