JPH0521792Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a small switch, and particularly to a thin tilting switch mounted on a printed circuit board.

(Summary of the invention) The present invention is suitable for mounting on printed circuit boards, especially surface mounting, by providing an inclined surface on the upper surface of a converter that moves up and down with the tilting of the handle, and on the lower side of this converter. In addition to providing a locking portion for locking the return spring, a recess is provided on at least one other surface of the converter, and a clip-shaped movable contact piece formed of an elastic thin plate is held in this recess. A terminal connected to a fixed contact that contacts the contact piece is made to protrude from both first side surfaces of the switch body, and the terminal surface of this terminal is the second side surface of the switch body, that is, the side surface that is placed on the printed circuit board. It is arranged so as to be substantially flat.

(Prior Art) Conventionally, as a small switch mounted on this type of printed circuit board, for example, FIG. 10 and FIG.
There was something like the one shown in the picture.

Hereinafter, a conventional small switch for mounting on a printed circuit board will be explained with reference to FIGS. 10 and 11.

In the figure, 1 is the switch board (see Figure 13), 2
3 is a cylindrical portion formed on the upper part of the switch case; 4 is a mounting bracket; 5 is a switch case that constitutes a switch housing together with the switch board;
6 is a handle supported by the cylindrical portion 3, 6 is a converter, and 6-
1 is a clip-shaped movable contact, 6-2 is a spring, 6-
3 is a push rod, and 7 is a terminal led out from the switch board 1.

The switch configured in this manner is mounted on a printed circuit board as shown in FIGS. 12 and 13. That is, the tips of the terminals 7 led out from the switch board 1 are inserted into holes 9 provided in the printed circuit board 8 and soldered.

In this way, the conventional switch has a printed circuit board 8
In order to mount the switch on the switch board 1, the terminals 7 of the switch were concentrated on the switch board 1, and moreover, the terminals 7 were bent at a position away from the switch body.
For this reason, for example, chip components for resistors and capacitors are manufactured and used for surface mounting on printed circuit boards, but surface mounting of switches has been considered difficult due to the above-mentioned structure. In this case, surface mounting was considered to be even more difficult when it came to a two-circuit changeover switch. Furthermore, here,
Surface mounting refers to soldering the terminals of electronic components by directly overlapping them on the printed wiring pattern surface of the printed circuit board, as shown in Figures 12 and 13.
The terminal 7 is not inserted into the hole 9 of the printed circuit board and soldered to the printed wiring pattern on the back side of the printed circuit board as shown in the figure. By the way, switches differ from resistors and capacitors in that they require the handle to be operated, and external force is applied to the switch, so when mounting it on a printed circuit board, it is necessary to solder the terminal wiring, etc. It is necessary to meet the following conditions: the left and right sides of the switch body must be firmly fixed.

Also, when it comes to a 2-circuit changeover switch, the terminals also have 2
Since the terminals are stacked in stacks, even if the terminals are soldered to the printed circuit board, it will not be strong enough to withstand the operation of the switch handle. It was necessary to use a separate sturdy mounting bracket 4 as shown in FIG.

(Problems to be solved by the invention) As mentioned above, conventional switches for mounting on printed circuit boards are difficult to surface-mount by themselves.
It was a problem.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned problems and provide a thin tilting switch for mounting on a printed circuit board that is suitable for surface mounting on a printed circuit board, is inexpensive, and is miniaturized.

(Means for solving the problem) In order to solve the above problem, the present invention is a switch that is mounted on a printed circuit board and is opened and closed by tilting the handle left and right. An inclined surface is provided on the upper surface of the converter, a locking portion for locking the return spring is provided below the converter, and a recess is provided in at least one other surface of the converter, and a recess is provided in the recess. holds a clip-shaped movable contact piece formed of an elastic thin plate, and makes a terminal that comes into contact with this movable contact piece and is connected to a fixed contact part protrude from both first sides of the switch body, and the terminal surface of this terminal is disposed so that it is substantially flush with the second side surface of the switch body, that is, the side surface that is placed on the printed circuit board.

(Function) According to the present invention, since the terminals are arranged on both vertical sides of the switch body, which are the sides in the left-right tilting direction of the handle, the switch can be firmly fixed to the printed circuit board, and the switch can be operated to open and close. The switch will not peel off from the printed circuit board even if you do this. In particular, as a surface-mounted switch, wiring to a printed circuit board is easy and the mounting strength can be greatly increased. In addition, on each of the three or four sides of the converter, an inclined surface where the pressing part of the handle comes into contact, a recess where the movable contact piece is held, a locking part of the return spring for automatic return of the converter, etc. are distributed. This makes it possible to obtain a small and thin switch.
Furthermore, the clip-shaped movable contact mechanism can be distributed to the left and right, and the clip-shaped movable contact piece slides into contact with the mechanism, that is, self-cleaning.
A highly reliable contact mechanism with little chatter is adopted, and a thin multi-pole switch can be obtained.

Furthermore, by shaping the sloped surface provided at the top of the converter in accordance with the purpose, the operating mode of the handle can be easily changed.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Fig. 1 is an exploded perspective view of the thin tilting switch for mounting on a printed circuit board of the present invention, Fig. 2 is a cross-sectional view of the switch, Fig. 3 is an enlarged perspective view of the terminals of the switch, and Fig. 4 is an exploded perspective view of the switch. FIG. 3 is a perspective view showing the mounting state on a printed circuit board.

In the figure, 10 is a lower switch main body, 11 is a handle support part provided at one end of the lower switch main body, and a hemispherical recess is formed in this support part to receive the handle in a freely tiltable manner. 12 is a recess for mounting a Z-type terminal on both sides of the lower switch main body 10, 13 is a recess used when installing the converter into the lower switch main body, and 14 is a guide surface for guiding the side surface of the converter. It is. 15 is a Z-shaped terminal formed integrally with the fixed contact piece, and is located in the recess 13 described above.
will be installed on the 16 is the upper switch main body; 17 is a protrusion whose tip surface abuts the above-mentioned Z-shaped terminal and is fitted into the above-mentioned recess 12; 18 is a protrusion which is fitted into the above-mentioned recess 13; A recess 18-1 (see FIG. 2) is formed in which the other end of the return spring is locked. Reference numeral 19 denotes a handle support part having the same structure as the above-mentioned handle support part 11, and receives and supports the pivoting spherical part 27 of the handle when the lower switch main body 10 and the upper switch main body 16 are combined. 20 is a converter, 21 is a recess in which a clip-shaped movable contact piece is held, and 22 is a return spring 2.
5 is a recess into which one end of the converter 20 is locked; 23 is an inclined surface with which a pressing portion 28 of a handle provided on the upper surface of the converter 20 engages; 24 is held in recesses 21 provided on both sides of the converter 20; A clip-shaped movable contact piece 25 is formed of an elastic thin plate, and 25 is a movable contact piece 25 that is connected to the recess 22 and the protrusion 1 described above.
A return spring is provided between the inner bottom surfaces of 8, 26 is a handle, 27 is a spherical part for pivoting the handle, and 28 is a pressing part.

As shown in FIG. 3, the Z-shaped terminal integrally formed with the fixed contact piece has a first flat part 15-1 that is soldered to the printed wiring of the printed circuit board, and a first flat part 15-1 that is bent from one end of the flat part. It consists of a vertical portion 15-2, which is bent from the vertical portion, and a second flat portion 15-3, which is bent from the vertical portion and serves as a fixed contact piece.

The switch configured in this manner is mounted on a printed circuit board as shown in FIG. That is, the first flat portion 15- of the Z-shaped terminal 15 is placed on the printed wiring (copper foil) 31 formed on the printed circuit board 30.
1, place the bottom surface of the lower switch main body 10 on the printed circuit board 30, and in that state, connect the first flat part 15-1 of the Z-shaped terminal 15 with the solder 3.
Perform soldering using 2.

Further, in the present invention, the switching mode of the switch can be changed by changing the shape of the inclined surface of the converter. For example, when an inclined surface toward the converter 51 is formed as shown in FIG. Then, it is switched and terminals 32 and 33 are turned on. When an inclined surface toward the converter 20 is formed as shown in FIG. 5b (FIGS. 1 and 2 as well), the terminals 34 and 35 is on and handle 1
When the operating force 6 is released, the switch instantly returns to the position 6 and is switched, and the terminals 33 and 34 are turned on, that is, it is a momentary type. When an inclined surface toward the converter 52 is formed as shown in FIG. There is no bridge between any of the terminals, resulting in an off state, and at the position , terminals 36 and 37 are in an on state. A switch of this switching mode type according to the invention is shown in FIG. Furthermore, a converter 5 as shown in FIG.
3, when the pressing part 28 of the handle 26 is in the position, the terminals 40 and 41 are in the on state, and in the neutral position, there is no bridge between any of the terminals and the terminals are in the off state. At the position , terminals 41 and 42 are turned on. It is a momentary type that can be switched instantly from position to position.

Next, FIG. 7 is a perspective view of a converter showing another embodiment of the present invention, and in this embodiment, the recess 22 for receiving one end of the return spring 25 in FIGS. , the return spring 2 is provided with a protrusion 61.
5 is designed to be locked at one end.

Next, FIG. 8 is an exploded perspective view of a switching mechanism showing another embodiment of the present invention, and FIG. 9 is a bottom perspective view of the converter.

In this embodiment, a recess 71 for holding two clip-shaped movable contact pieces 73 is provided parallel to the bottom surface of the converter 70, and each clip-shaped movable contact piece 73 contacts a lower switch body (not shown). A three-shaped terminal 75 is provided, and its tip portion forms a terminal surface to be soldered to the printed wiring of the same printed circuit board as described above.

By the way, since the switch of the present invention is a switch for mounting on a printed circuit board, it naturally opens and closes minute voltages and minute currents, and the most suitable contact mechanism for this is a clip-shaped movable contact piece. It uses a sliding contact mechanism, that is, a self-cleaning contact mechanism with minimal chatter. In addition, the structure has all the necessary conditions such as terminal arrangement on the wiring for mounting on a printed circuit board in which the terminal arrangement is arranged separately on the left and right sides, and fixing conditions as a surface mounting switch. This is possible because each of the four sides of the converter is utilized and configured to have its own function.

It should be noted that the present invention is not limited to the above embodiments, and various modifications can be made based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

(Effects of the invention) As described above in detail, according to the invention, the following effects can be achieved.

(1) Since terminals are provided on both vertical sides of the switch body, which are the sides in the left-right tilting direction of the handle, the switch can be firmly fixed to the printed circuit board. Therefore, even if the switch is opened or closed, the switch will not be peeled off from the printed circuit board.

(2) The clip-shaped movable contact mechanism can be distributed to the left and right sides of the switch body, allowing terminals to be drawn out from the left and right sides of the switch body and soldered to the printed circuit board on both sides, allowing it to be used as a switch for mounting printed circuit boards. Furthermore, as a surface-mounted switch, wiring to a printed circuit board is easy, and the mounting strength can be greatly increased.

(3) On each of the three or four sides of the converter, an inclined surface where the tip of the handle comes into contact, a recess where the movable contact piece is held, a locking part of the return spring for automatic return of the converter, etc. are distributed. As a result, a small and thin switch can be obtained.

(4) The operating mode of the handle can be changed by shaping the sloped surface provided at the top of the converter according to the purpose, so it is possible to easily obtain a switch with various opening/closing modes.

(5) This type of switch opens and closes minute voltages and currents, and has the most suitable contact mechanism for this purpose, that is, a mechanism in which a clip-shaped movable contact piece slides into contact, that is, it is self-cleaning. , a highly reliable contact mechanism with little chatter is adopted, and a thin multi-pole switch can be obtained.

(6) Since the switch can be made thin, if the solder applied between the terminal and the printed circuit board during wiring is heated from above using an infrared lamp, the heat applied will be reduced by the thickness of the switch body. As a result, the heating of the top surface of the switch body is reduced, and deterioration of the material of the switch can be prevented.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a thin tilting switch for mounting on a printed circuit board showing an embodiment of the present invention, Fig. 2 is a sectional view of the switch, Fig. 3 is an enlarged perspective view of the terminals of the switch, and Fig. 4 The figure is a perspective view showing how the switch is mounted on a printed circuit board, Figure 5 is an explanatory diagram of the switching mode when changing the slope of the converter of the present invention, and Figure 6 is an example of changing the switching mode. FIG. 7 is a partially cutaway side view of a switch showing another embodiment of the present invention; FIG. 8 is a perspective view of a converter showing another embodiment of the present invention;
The figure is an exploded perspective view of a switching mechanism of a switch showing another embodiment of the present invention, FIG. 9 is a bottom perspective view of a converter of the switching mechanism, and FIG. 10 is a perspective view of a conventional small switch for mounting on a printed circuit board. , FIG. 11 is a perspective view of the operating section of a conventional switch, and FIG. 12 is a side view showing a state in which the conventional switch is mounted on a printed circuit board.
FIG. 13 is a rear perspective view showing a conventional switch mounted on a printed circuit board. 10... Lower switch main body, 11, 19... Handle support part, 12, 13, 21, 22, 71...
Recess, 14... Guide surface, 15... Z-type terminal, 1
6... Upper switch body, 17, 18, 61...
Protrusion, 20, 70... converter, 23... inclined surface,
24, 73... Clip-shaped movable contact piece, 25...
Return spring, 26... Handle, 27... Pivoting spherical part, 28... Pressing part, 30... Printed circuit board, 7
5...3-shaped terminal.

Claims (1)

[Claims for Utility Model Registration] (1) In a switch that is mounted on a printed circuit board and is opened and closed by tilting the handle from side to side, an inclined surface is provided on the upper surface of the converter which moves up and down as the handle tilts. A locking portion for locking a return spring is provided below the converter, and a recess is provided on at least one other surface of the converter, and a movable clip-shaped clip formed of an elastic thin plate is provided in the recess. A terminal that holds the contact piece, contacts the movable contact piece, and is connected to the fixed contact protrudes from both first side surfaces of the switch body, and the terminal surface of the terminal is substantially flush with the second side surface of the switch body. A thin tilting switch for printed circuit board mounting, characterized in that it is arranged so that (2) The printed circuit board according to claim 1, wherein the terminal has a substantially Z-shape protruding from within the switch main body, and is formed such that the lower surface of the terminal is in contact with the printed wiring board. Thin tilting switch for mounting.