JPS6158183A - Method of mounting leads on terminal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for attaching a lead wire to a terminal for connecting the lead wire to a terminal attached to a case of an electronic device.

<Prior art> For example, in a piezoelectric buzzer, etc., the conventional method of attaching a lead wire taken out from an electrode to a terminal attached to a case 1 is as shown in Fig. 4. A cutout 4 for inserting the lead wire 3 on one side of the terminal 2
The lead wire 3 is connected to the terminal 2 by soldering.

<Problems to be Solved by the Invention> By the way, the above-mentioned attachment method involves winding the lead wire, inserting the lead wire into the cut-and-raised part, and connecting the lead wire.
There is a problem in that not only is efficiency low due to the need for soldering and many other work steps, but also the work of cutting and raising the lead wires and sandwiching them requires a skilled technique.

This invention was made to solve the above-mentioned problems in VR, and it is possible to easily connect lead wires with a small number of steps without requiring skilled technology. The purpose is to provide a method for attaching wires to terminals.

Means for Solving the Problems In order to solve the above problems, the present invention provides a metal terminal that is inserted into the insertion hole of the case and installed, and a lead wire that extends in the longitudinal direction from the end on the installation side. and a lead wire fixing notch that extends from this notch and has a narrow inner end into which the lead wire is inserted, and the lead wires are placed in a cross shape over the insertion hole of the case. After that, insert the terminal into the insertion hole with the lead wire fitted over the lead wire, and attach it to the case. Next, pull the lead wire from the lead wire into the fixing notch. It is press-fitted and fixed into the narrow fitting part, and the lead wire is connected to the terminal by soldering.

Function: The lead wires taken out from the electrodes of the electronic component are placed in a cross shape over the insertion hole of the case, and the lead wires are inserted into the notch in the longitudinal direction from the end of the mounting side, and from this notch. Prepare a terminal with a notch for fixing the lead wire that extends in an extended manner and whose inner end becomes a narrow part of the lead wire, and insert this terminal into the insertion hole and attach it to the base. Insert the notch for insertion into the lead wire.

Next, the lead wire is simply pulled upward, the lead wire is press-fitted into the fixing notch to be fixed to the terminal, and the lead wire is connected to the terminal by soldering.

Embodiments The embodiments of this invention will be described below with reference to Figures 1 to 3 of the accompanying drawings.
Explain based on diagrams.

As shown in the figure, a metal terminal 13, which is inserted and fixed into a case 11 of a piezoelectric buzzer or the like, and which is taken out from an electrode and connects an lζ lead wire 12, is a lead wire inlet that extends upward in the longitudinal direction from the lower end of the mounting side. A notch 14 and a lead wire fixing notch 16 that extends from the upper end of the notch 14 and whose inner end becomes the narrow part 15 into which the lead wire 12 is inserted.
is provided.

The notch 14 for taking in the lead wire is formed wider than the diameter of the lead wire 12, and has a lower end with a lower floor.

The upper end of the notch 16 for fixing the lead wire is the lead wire 12,
In order to form a narrow portion 15 that is slightly thinner than the core wire diameter, and to communicate this narrow portion 15 with the intake notch 14,
Narrow width part 15 lead fJ! 12 is formed wide toward the notch 14 so that the rust can be guided smoothly.

The case 11 is provided with an insertion hole 17 into which the terminal 13 is attached, and the insertion hole 17 is deep enough to accommodate the middle part of the fixing notch 16.

The mounting method of the present invention is carried out using the terminals as described above, and in order to connect the lead wires 12 and the terminals 13, the lead wires 12 are placed above the insertion holes 17 so as to cross each other. Then, the terminal 13 is placed directly above the insertion hole 17 as shown in FIG. 1, and the terminal 13 is inserted into the insertion hole 17.

At this time, the notch 14 of the terminal 13 for insertion is fitted onto the lead wire 12.

Next, hold the end of the lead wire 12 and cut the notch 1 for intake.
4 into the fixing notch 16 and press-fit into the fitting narrow part 15 to temporarily fix the lead wire 12 to the terminal 13. (See Figure 2) After this, the work is completed by connecting the lead wire 12 and the terminal 13 by soldering.

Note that the lead wire 12 may be either a bare wire or a synthetic resin-coated wire, and in the case of a coated wire, the core wire may be exposed at the end connected to the terminal.

<Effects> As described above, according to the present invention, the terminal is provided with a notch for introducing the lead wire and a fixing notch having a narrow portion at the inner end, and the terminal is inserted into the insertion hole in which the lead wires are not crossed. After installing the lead wire, the lead wire is pulled up into the narrow part, so the lead wire can be fixed to the terminal simply by attaching the terminal to the case and pulling up the lead wire, and the lead wire can be wrapped around the terminal. This eliminates the need for any additional work, and allows connections to be made without the need for skilled techniques or special jigs.

Furthermore, since connections can be made by simply attaching terminals and pulling up lead wires, the number of steps required for connection is reduced, greatly improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the method of the present invention before the terminal is attached, Fig. 2 is a perspective view after the terminal is fixed, Fig. 3 is a front view of the terminal used in the above, and Fig. 4 is a conventional It is a perspective view which does not show the attachment method. 11...Case 12...Lead wire 13...
・Terminal 14... Notch for intake 15... Narrow insertion part 16... Notch for fixing 17... Insertion hole Patent applicant Murata Manufacturing Co., Ltd. Representative Patent attorney Kazu 1) Showa 1
Figure 2

Claims (1)

[Claims] The metal terminal is inserted into the insertion hole of the case and installed.
A notch for taking in the lead wire in the longitudinal direction from the installation end, and a notch for fixing the lead wire that extends from this notch and whose inner end becomes the narrow part into which the lead wire is inserted, are provided to secure the case. After placing the lead wires in a cross pattern over the insertion hole, insert the terminal into the insertion hole with the lead wire fitted over the lead wire and attach it to the case, then place the lead wire in the insertion hole. A method of attaching the lead wire to the terminal by pulling it up from the notch into the fixing notch, press-fitting it into the narrow part, and connecting the lead wire with soldering.