JPH064506Y2 - Power switch mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a mounting structure of a power switch mounted on a printed circuit board, and particularly when mounting the power switch on the circuit board, a lead terminal of the power switch and the printed circuit board. By inserting and locking the plate-like protrusion at the bottom of the power switch and the groove at the top of the insulating locking member that is inserted through the opening of the substrate from the insulating base between the connecting portions that are close to each other with the upper conductor, the terminal connecting portion The present invention relates to a mounting structure of a power switch that can secure an insulation distance between them.

[Prior Art] Generally, a plurality of terminals of a general-purpose power switch are provided close to each other, and a connecting portion between this terminal and another conductor is connected by soldering or the like, so that portion is bulged. The distance between the terminals is closer than the specified distance, and the insulation distance (about 4
mm) cannot be secured, the safety standards of other countries cannot be satisfied.

Therefore, conventionally, the following measures have been taken.

That is, in the conventional power switch mounting structure shown in FIGS. 4 to 5, the power switch 10 has a case main body 11 having a part thereof inserted through the opening 14 of the base 12 and projecting to both sides of the case main body 11. The provided mounting portion 16 is fixed with a screw 18. In this case, the plurality of terminals 2 taken out from the bottom of the insulating case body 11 of the power switch 10
0 and 20 are connected to the other conductive wires 22 and 22 by soldering, respectively.

In particular, the power switch 10 is a high voltage type (100V-25
0V), the connection part 2 is connected by soldering
Since the portions 4 and 24 are easily swollen with each other and short-circuited easily, the portion is, for example, an insulating heat-shrinkable tube 2
6 and 26 were attached and insulation-protected.

[Problems to be solved by the invention] In this case, when the power switch is attached, the insulating heat-shrinkable tubes are inserted in advance into the other conductors connected to the four terminals taken out from the power switch. In addition, after the soldering is completed, the tube is moved to its connecting portion and mounted by thermal contraction.

Therefore, there is a problem in that the wiring process at the time of mounting the power switch is troublesome and the workability is impaired because the terminals are close to each other.

Further, when the tube is attached to the connecting portion, there is a problem that the soldered portion cannot be inspected later.

An object of the present invention is a mounting structure for mounting a power switch on a board, in which a plate-like protrusion on the bottom of the power switch and a groove on the top of an insulating locking member through which an opening of the board is inserted from an insulating base are inserted. By stopping the connection of the power switch terminal and the conductor on the printed circuit board from each other and mounting the power switch on the printed circuit board in an insulated state, the insulation distance can be secured and the number of parts is reduced. Another object of the present invention is to provide a power switch mounting structure that facilitates wiring processing and improves workability.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, a power switch mounted on a printed circuit board fixed to an insulating base has a plurality of terminals of the power switch and the circuit board. A mounting structure of a power switch configured to insulate a connection portion with a conductive wire from each other, wherein a plate-shaped protrusion protruding longitudinally between terminals protruding from the bottom of an insulating case of the power switch. And an insulating locking member having a groove having a recessed cross-section at the top is inserted into the opening of a printed circuit board fixed on the insulating base at a predetermined interval, and the insulating locking member is erected on the insulating base. The power switch is mounted on the printed circuit board by inserting and locking the plate-like protruding portion of the device and the groove of the insulating locking member so that the connecting portions are separated from each other. And said that you configure.

[Operation] According to the mounting structure of the power switch according to the present invention, when mounting the power switch on the substrate, the groove at the top of the insulating locking member is formed by inserting the plate-like protrusion at the bottom of the power switch and the substrate opening from the insulating base. By inserting and locking and connecting the power switch terminal and the conductor on the printed circuit board to each other to isolate the connection part from each other and to secure the insulation distance, the power switch is mounted on the printed circuit board. Thus, the insulation can be improved, the wiring process can be facilitated, and the workability can be improved.

[Embodiment] Next, an embodiment of a power switch mounting structure according to the present invention will be described in detail below with reference to the accompanying drawings.

The same parts as those in FIGS. 4 to 5 showing the conventional example are designated by the same reference numerals and the description thereof will be omitted.

FIG. 1 shows an embodiment of the present invention and is a front view showing a mounting state of a power switch, and FIG. 2 is a partial sectional view of the mounting state of a power switch as seen from a side surface.

In FIGS. 1 and 2, reference numeral 30 designates an insulating power switch 10 and a terminal 2 taken out from the bottom of the case body 11.
Reference numeral 32 denotes a plate-like protruding portion that protrudes in the longitudinal direction between 0 and 20, and 32 is erected on an insulating base 34 formed with a plastic case, for example, and is fixed on the insulating base 34 with a predetermined space therebetween. Opening 3 of printed circuit board 36
8 is an insulating locking member in which a groove 40 having a recessed cross section is formed on the top thereof.

That is, as shown in the partially enlarged cross-sectional view of FIG. 3, the power switch 10 includes the spacer 42, the spacer 42, and the spacer 42 on the substrate 36.
The mounting portion 16 is fixed by screws 18 and 18 via 42, and the plate-like protruding portion 30 at the bottom of the case body 11 and the groove 40 of the insulating locking member 32 are in the insertion locking state.

Each terminal of the power switch supported in such a state is connected to the conductor 22 standing from the board 36 by solder.

In this way, the connected joints 24, 24 expand and expand, but as shown by the dotted line 38 in FIG. 3, a sufficient insulation distance is secured between the joints, which is the same as in the conventional case. The coated tube is no longer needed.

[Effects of the Invention] As is apparent from the above-described embodiments, according to the power switch mounting structure of the present invention, the power switch mounting structure is such that the power switch is mounted on the substrate. And the groove on the top of the insulating locking member that is inserted through the board opening from the insulating base to lock the terminals of the power switch and the conductors on the printed circuit board isolated from each other, and print the power switch in an insulated state. By mounting it on the board, the insulation distance can be secured with a simple structure, the heat shrink tube for coating is not required, the number of parts can be reduced, and the wiring process can be facilitated to improve workability. Therefore, the manufacturing cost can be reduced.

Although the preferred embodiment of the present invention has been described above, it is needless to say that the present invention is not limited to the above-described embodiment and various design changes can be made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 shows an embodiment of the invention, a front view showing a mounting state of a power switch, FIG. 2 is a partial sectional view of the mounting state of a power switch seen from a side, and FIG. 3 is a partially enlarged sectional view.
FIG. 4 is a front view showing a mounting state of a conventional power switch, and FIG. 5 is a side view showing a mounting state of a conventional power switch. 10 …… Power switch, 11 …… Case body 12 …… Base, 14 …… Opening 16 …… Mounting part, 18 …… Screw 20 …… Terminal, 22 …… Lead wire 24 …… Connecting part, 26 …… Heat Shrinkable tube 30 …… Plate-like protrusion, 32 …… Insulation locking member 34 …… Insulation base, 36 …… Printed circuit board 38 …… Opening, 40 …… Groove 42 …… Spacer

Claims (1)

[Scope of utility model registration request] 1. A power switch configured so that a power switch mounted on a printed circuit board fixed to an insulating base electrically insulates a plurality of terminals of the power switch and a conductor on the circuit board from each other. In the mounting structure of the power switch, a printed circuit board is provided at the bottom of the insulating case of the power switch, with plate-like protrusions protruding in the longitudinal direction between terminals protruding from the bottom, and fixed on the insulating base at a predetermined interval. An insulating locking member having a groove having a recessed section in the top is inserted into the opening of the insulating locking member and is erected on the insulating base, and the plate-like protrusion of the power switch and the groove of the insulating locking member are inserted and locked. Accordingly, the power switch mounting structure is characterized in that the power switch is mounted on the printed circuit board with the connection portions separated from each other.