JPH10233143A - Switch and its layout structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch and its layout structure which can be manufactured relatively easily at low cost and be placed rationally even in a limited small space, so that degrees of freedom in the design of the outer shape of equipment such as a remote controller on which the switch is placed can be increased for effective miniaturization, etc. SOLUTION: A switch 2 is formed by securing a clicking spring 20 made of a coned spring or the like to a flexible wiring board 10 with cover tape, and a switch-equipped flexible wiring board 1 having the switches 2 provided on plural portions thereof is curved or twisted at its narrow part 1a and is bonded to not only the upper surface 36 but also the side faces 31-33 of a three- dimensional frame 30 with double-sided tape, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch (key) which is provided on a large number of devices such as a remote controller and is operated by a finger, and a rational arrangement for disposing the switch on a frame of the device. Regarding the structure.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a large number of switches 60, 60,... The switches 60, 60,...
Is usually a circuit board that supports reflow soldering.
And mounted on the wiring board 50 together with the frame 70.

In this case, the frame 70 is, for example,
It is a rectangular cylindrical three-dimensional frame having a rectangular mounting window 72 for mounting the liquid crystal display 71, and the three-dimensional frame 70 is mounted and fixed on the wiring board 50. In this case, the switches 60, 60,.
The three-dimensional frame 70 is provided on the wiring board 50 so as to surround the three-dimensional frame 70 on the same plane around its periphery.

[0004]

However, as described above, the switches provided in the conventional small electronic operation devices such as remote controllers are mounted on the wiring board and are compatible with reflow soldering. Even when a large number of switches are arranged on a wiring board of a small electronic operation device such as a remote controller, they can be arranged only on the same plane (upper surface).

For this reason, the outer shape of the wiring board on which the switch is disposed is restricted, and the area of electronic components mounted thereon is also restricted. However, there is a problem that the degree of design freedom is reduced and miniaturization cannot be achieved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to make it relatively easy and inexpensive to manufacture, and to reduce space in a limited space. A switch that can be arranged in a flexible manner, thereby increasing the degree of freedom in designing the external shape of equipment such as a remote controller to be arranged, and effectively achieving downsizing, and the like. It is intended to provide an arrangement structure.

[0007]

In order to achieve the above object, a switch according to the present invention has a click spring disposed on a flexible printed circuit board and the click spring sandwiched between the flexible printed circuit board and the flexible printed circuit board. By applying a cover tape as described above and pressing the click spring via the cover tape, the first contact portion and the second contact portion formed on the wiring pattern of the flexible printed circuit board are The first contact portion and the second contact portion are brought into a non-conductive state and turned off by releasing the click spring from the ON state by being made conductive through the click spring. It was done.

In a preferred embodiment of the switch according to the present invention, the click spring is a disc spring made of a conductor, and an outer peripheral edge of the click spring is in contact with the first contact portion, and the click spring is pressed. By doing so, the central portion is brought into contact with the second contact portion.

Further, in the switch arrangement structure according to the present invention, at least one switch is bent on at least two surfaces of a three-dimensional frame, respectively, on a flexible wiring board with switches provided with a plurality of switches. And / or twisted and attached.

In this case, in a preferred embodiment, the flexible wiring board with the switch is formed in an elongated tape shape having uneven steps in the width direction, and the flexible wiring board with the switch is bent and twisted at a narrow portion in the middle. At least one switch is mounted on each of the top and side surfaces of the three-dimensional frame.

In another preferred embodiment, the flexible wiring board with a switch is attached to the three-dimensional frame with a double-sided tape.

In another preferred embodiment, the three-dimensional frame is a fixing plate for fixing a liquid crystal display.

The switch of the present invention having the above-described structure has a relatively simple structure in which the click spring is fixed to the flexible wiring board with a cover tape.
Since the arrangement structure is such that the flexible wiring board with the switch is bent or twisted and attached to two or more surfaces of the three-dimensional frame, it is simpler than a conventional switch compatible with reflow soldering. In addition to being able to be manufactured at low cost, it can be rationally arranged even in a narrow space with restrictions, so that the degree of freedom in designing the external shape of equipment such as a remote controller in which it is arranged is remarkably increased. And the size can be effectively reduced.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a switch according to the present invention.

FIG. 1 is a perspective view showing a case where the switch according to the present invention and its arrangement structure are applied to a three-dimensional frame of a small electronic operation device such as a remote controller, and FIG. 2 is an exploded perspective view thereof.

The switches 2, 2,...
4 and FIG. 4, the required number (here, 9) of conductive metal disc springs disposed on an elongated tape-shaped flexible wiring board 10 having uneven steps in the width direction is provided. Click springs 20, 2
0,... This click spring 20,2
Are sandwiched between the flexible wiring board 10 and the translucent cover tape 15 attached thereto.

A double-sided tape 17 and a release paper 18 are sequentially adhered to the lower surface (back surface) of the flexible wiring board 10.

Although not shown, a wiring pattern is formed on the upper surface of the flexible wiring board 10,
Each click spring 20, 20, in this wiring pattern
, A first contact portion 11 with which the peripheral edge contacts is formed, and a portion located immediately below a central portion of the click springs 20, 20,. Is formed with a second contact portion 12.

Therefore, the switches 2 and 2 of this embodiment
In 2, by pressing the click spring 20 via the cover tape 15, the first contact portion 11 formed on the wiring pattern (not shown) of the flexible wiring board 10 is connected to the first contact portion 11. The second contact portion 12 is electrically connected to the second contact portion 12 through the click spring 20 to be turned on. When the click spring 20 is released from the ON state, the first contact portion 11 and the second contact portion 12 are connected to each other. The non-conductive state is set to the OFF state.

The switches 2, 2,...
The flexible wiring board with switch 1 provided at nine locations is attached to the three-dimensional frame 30 of small electronic operation equipment such as a remote controller as described later.

The three-dimensional frame 30 is mounted on a wiring board 40 and has a rectangular cylindrical shape having a rectangular mounting window 37 for mounting a liquid crystal display 38.
(5) A front side surface 3 having a rear portion, left and right side surfaces 32, 33 excluding a rear side surface 34, and chamfered inclined surfaces 31a, 31a at both ends.
1 and 4 switches, 1 switch, 2 switches and 2 switches 2
It is made to arrange.

That is, in this embodiment, the three-dimensional frame 30 is formed by bending and twisting the flexible wiring board with switch 1 including the nine switches 2, 2,. , One on each of the upper surface 35, the left and right side surfaces 32, 33 and the front side surface 31,
The upper surface is placed at the rear of the upper surface 35 of the three-dimensional frame 30 so that the two and two switches 2 are in contact with each other, and the side peripheral surfaces are left and right side surfaces 32 and 33 of the three-dimensional frame 30. The space between the respective surfaces is appropriately bent along the front side surface 31 and attached.

The flexible wiring board with switch 1
In mounting, the release paper 18 adhered to the back side of the flexible wiring board 10 is peeled off, and the positioning pins 36, 36,.
Is positioned by inserting it into the through-hole 5 formed in the flexible wiring board 1 with the switch, and is adhered and fixed with the double-sided tape 17.

The switch of this embodiment having such a configuration has a relatively simple configuration in which the click spring 20 is fixed to the flexible wiring board 10 with the cover tape 15. Since the flexible wiring board with switch 1 is bent or twisted and attached not only to the top surface but also to the side surface of the three-dimensional frame 30, it is simpler and easier than a conventional switch compatible with reflow soldering. It can be manufactured at low cost and can be rationally arranged in confined and narrow space, so that the degree of freedom in designing the external shape of equipment such as remote controllers in which it is arranged is greatly increased. Therefore, miniaturization and the like can be effectively achieved.

[0025]

As will be understood from the above description, according to the switch of the present invention and the arrangement structure thereof, it is possible to manufacture the switch easily and at low cost, and it is possible to reduce the size of the switch in a limited space. And therefore, the degree of freedom in designing the external shape of equipment such as a remote controller to which the remote control is to be installed can be greatly increased, and the size of the equipment can be effectively reduced. It works.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a case where a switch and an arrangement structure according to the present invention are applied to a three-dimensional frame of small electronic operation equipment such as a remote controller.

FIG. 2 is an exploded perspective view of the three-dimensional frame and the flexible wiring board with switches shown in FIG. 1;

FIG. 3 is a plan view showing a natural state (unfolded state) of the flexible wiring board with a switch shown in FIGS. 1 and 2;

FIG. 4 is a sectional view taken along line XX of FIG. 3;

FIG. 5 is a diagram provided for explaining a conventional switch and an arrangement structure thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible wiring board with a switch 2 Switch 10 Flexible wiring board 11 1st contact part 12 2nd contact part 15 Cover tape 17 Double-sided tape 18 Release paper 20 Click spring (disc spring) 30 Three-dimensional frame 31 Front side 32, 33 Left and right side 34 Back side 35 Top side

Claims (6)

[Claims] 1. A click spring is disposed on a flexible printed circuit board, a cover tape is applied so as to sandwich the click spring between the flexible printed circuit board and the click spring, and the click spring is interposed via the cover tape. By pressing, the first contact portion and the second contact portion formed on the wiring pattern of the flexible wiring board are made conductive through the click spring and turned on, and from this ON state, the click spring is turned off. A switch in which, when released, the first contact portion and the second contact portion are turned off and turned off. 2. The click spring is a disc spring made of a conductor, and the outer peripheral edge of the click spring is in contact with the first contact portion. The switch according to claim 1, wherein the switch is configured to contact the second contact portion. 3. A flexible wiring board with a switch, wherein the switch according to claim 1 is provided at a plurality of positions, is provided on at least two surfaces of a three-dimensional frame, at least one each.
A switch arrangement structure, wherein said switches are mounted by bending and / or twisting. 4. The three-dimensional frame of the three-dimensional frame, wherein the flexible wiring board with a switch is formed in an elongated tape shape having an uneven step in a width direction. The switch arrangement structure according to claim 3, wherein at least one switch is attached to each of an upper surface and a side surface. 5. The switch arrangement structure according to claim 3, wherein the flexible wiring board with a switch is attached to the three-dimensional frame with a double-sided tape. 6. The switch arrangement structure according to claim 3, wherein the three-dimensional frame is a fixing plate for fixing a liquid crystal display.