JPS6032723Y2 - Terminal structure of electrical parts - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a terminal structure for electrical components such as variable resistors and switches, and more particularly to a terminal structure for a plurality of electrical components installed in parallel on a printed circuit board.

The conventional terminal structure for this type of electrical component is that a terminal is implanted into an insulating board and has a tip that extends linearly toward the printed circuit board, and is inserted into a hole in the printed circuit board and soldered. be.

In such a structure, if the printed circuit board is bent, or if there is a misalignment between the printed circuit board on which the terminal is attached and the panel on which the bearings of electrical components are attached, strong stress will be applied to the terminal, causing undesirable damage to the terminal. There were drawbacks such as deformation and cracks in the solder, making the mechanical and electrical connection of the terminal unstable.

The present invention was developed to eliminate the drawbacks of the above-mentioned conventional example, and will be explained in detail below with reference to the drawings. In Fig. 1, 1 is an inner shaft, and 2 is a rotatable support for the inner shaft 1. A hollow outer shaft, 3 a bearing, and 4 a variable resistor case.

Reference numerals 5 and 6 denote a pair of insulating substrates for variable resistors arranged oppositely in this case, 7 a switch case, 8 a switch substrate, and 9 a plate body 9a and a mounting foot 9b provided at its tip. It is a mounting plate consisting of.

10 and 11 are a total of six terminals attached to a pair of insulating substrates 5 and 6 of the variable resistor, and 12 are two switch terminals attached to the switch case 7.

13 is a printed circuit board, and 13a is a terminal mounting hole.

In the above configuration, the variable resistor at the front stage housed in the case 4 is operated by the rotation of the outer shaft 2, and the variable resistor at the rear stage is operated by the rotation of the inner shaft 1, and the opening and closing of the switch is operated by the rotation of the inner shaft 1.
This is done by pushing and pulling.

The terminals io and it of the present invention have the same shape, and terminal 1
As shown in FIG. 2, the shape of 0 includes a mounting part 10a to the insulating substrate 5 with an eyelet in the center, a neck part 10c with a notch 10d and a locking piece 10d' formed in the eyelet direction. The U-shaped bending part 10e, the insertion part 10f inserted into the mounting hole 13a of the printed circuit board 13, and the locking part 10g secured to the upper surface of the printed circuit board 13 are used.

The terminal 10.11 has a U-shaped bent portion 10e as shown in FIG.
, lle are attached to the insulating substrates 5 and 6 so as to protrude opposite to each other in the axial direction B.

Switch terminal 1 attached to the bottom of switch case 7
2 does not have a dovetail portion, but a U-shaped bent portion 12e below the mounting portion 12a is arranged so as to protrude in the axial direction B and orthogonal direction C, as shown in FIG.

These terminals 10.11.12 are inserted into the insertion portions 10f, llf.
, 12f are inserted into the mounting holes 13a of the printed circuit board 13, and then fixed on the back side of the printed circuit board 13 by soldering.

In this case, the locking part 10 of each terminal 10, 11, 12
gt 11 gt 12 g is printed circuit board 13
It is locked on the top surface of.

As mentioned above, the terminal structure of the electrical component of the present invention is such that the printed circuit board 13 may be warped or bent slightly, or may be bent in the axial direction B and the opposite direction, or in the direction C orthogonal to the axis 1 and the opposite direction. The pushing force applied to the electrical component is applied to each terminal 10.
, 11.12, the bent portions 10e and 1let 12e deform to partially absorb this and do not exert its influence on the mounting portion 10a or the insertion portion 10f, thereby preventing mechanical and electrical connection of the terminals. There is also a panel (
Even if there is some positional deviation between the bent part 1 (not shown)
Not only can the calibration be easily performed by deforming the solder flux 0e, but also the bending portion 10e allows the solder flux to be attached to the solder flux attachment portion 10a.
This has the advantage that it can also prevent the influx of

[Brief explanation of drawings]

The drawings all relate to the present invention; FIG. 1 is a side view, FIG. 2 is a perspective view of the terminal, and FIG. 3 is an end view of FIG. 1 taken along line A-A'. 5.6 Insulated substrate of variable resistor, 9...
...Mounting plate, 10, 11, 12...Terminal, 10
e, 11e, 12e... U-shaped bent part, leg・
...Locking part.

Claims (1)

[Scope of utility model registration request] In a plurality of electrical components that are arranged in parallel on a concentric axis and have terminals that lead out in one direction, the terminal of each electrical component has a locking portion that locks on the printed circuit board surface, and a locking portion above the locking portion. In some of the plurality of terminals, the U-shaped bent portion protrudes in the axial direction, and in other portions, the U-shaped bent portion protrudes perpendicularly to the axial direction. terminal structure of electrical components.