JP2885690B2 - Tilt / vibration switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt / vibration switch, and more particularly to a tilt / vibration switch for detecting the tilt and vibration of an object based on a conductive state or a non-conductive state created by a conductive sphere moving in a case.

[0002]

2. Description of the Related Art The following can be cited as examples of this type of conventional tilt / vibration switch.

Japanese Patent Laid-Open No. 61-180 as a first conventional example
The "portable alarm" described in Japanese Patent Publication No. 392 discloses a container composed of a cylindrical portion made of a non-magnetic conductive material and two disk portions formed of an electrically insulating material, and an inner surface of the disk portion. It is composed of a radially extending wire and a metal sphere. The vibration of the wearer causes the metal sphere to roll and contact the wire and the outer wall to sense vibration.

[0004] Next, Japanese Patent Application Laid-Open No. Hei 6-5 as a second conventional example.
No. 2763, entitled "Tipping / Seismic Switch", has two terminal plates arranged opposite to each other at the center of a recess in which the center of the body is lowered, and the opposing inner edges of the two terminal plates are arranged. A gap is formed between the two terminal plates by positioning them on substantially the same circular locus, a cap is placed on the body, and a conductive ball is movably placed in a space formed by the body and the cap, and the ball is a terminal facing the ball. The terminal boards are placed on the inner peripheral edge of the board and electrically connected to each other via balls.

A third conventional example is disclosed in Japanese Unexamined Patent Publication No.
The "vibration sensor" described in Japanese Patent Publication No. 187621 discloses a method in which a conductive sphere is movably provided in a portion of a surface half of which is a conductive portion and a half of which is surrounded by a plurality of pillars of an insulating portion. Is a vibration sensor that moves on two pillars, and the two pillars are conductive or non-conductive.

[0006]

In the first prior art, when there is no vibration, the wire is supported by the wire and the outer wall. When there is vibration, the wire is separated from the wire and the outer wall, and when there is no vibration. Also, because of the structure that returns to the supported state,
There is a problem that it is not possible to detect a weak vibration so that the user cannot leave the supported state.

Next, the second conventional example has a problem that it is impossible to detect a weak vibration or the like because it cannot be detected unless a tilt or vibration exceeding a certain angle is applied.

In the third conventional example, when the vibration sensor is inclined and becomes conductive or non-conductive, the conductive ball remains in contact with the pillar even if it moves due to vibration, and the conductive or non-conductive state is detected. There was a problem that it was not possible.

An object of the present invention is to make it possible for a conductive sphere to move freely in a case without moving vertically and vertically as much as possible, and for the conductive sphere to move in the case due to vibration or inclination. An object of the present invention is to provide a tilt / vibration switch that reliably detects a weak vibration or a small tilt by detecting that the power is on or off.

[0010]

According to the present invention, a non-conductive hollow cylindrical case, a non-conductive lower substrate and an upper substrate attached to the bottom and top surfaces of the case, respectively, A conductive sphere that can freely move in the space of the first and second substrates, wherein the upper substrate and the lower substrate each have a first conductive pattern and a second conductive The first conductive pattern and the second conductive pattern of the upper substrate are alternately arranged so as to be separated from the pattern, and the second conductive pattern and the first conductive pattern of the lower substrate are And the conductive spheres attached to the upper surface and the lower surface of the case so as to face each other.
Are the first conductive pattern and the second conductive pattern.
It is located at an appropriate position where it can be
The diameter of the conductive sphere is the concave of the upper substrate or the lower substrate.
Larger than the diameter of the lower substrate and
In this state, the conductive sphere moves around the recess of the upper substrate.
It has a size that does not make contact with the edge, and becomes conductive only when the conductive sphere simultaneously contacts the first conductive pattern and the second conductive pattern, and is non-conductive otherwise. The inclination characterized by becoming
A vibration switch is obtained.

[0011] A first terminal connected to the first conductive pattern and a second terminal connected to the second conductive pattern are provided on an outer surface of the upper substrate and an outer surface of the lower substrate. Having a first connection point connecting all the first terminals and all the second terminals to detect the conductive state and the non-conductive state created by the conductive sphere. A tilt / vibration switch characterized by providing the connected second connection point is obtained.

[0012]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view showing one embodiment of the tilt / vibration switch of the present invention. 2A is a top view of the lower substrate in FIG. 1, and FIG. 2B is a cross-sectional view taken along line II in FIG. Further, FIG.
5A is a schematic diagram showing an internal state, and FIG. 5A shows a state of being stationary at a normal position, and FIG. 5B shows a state of being at a position inclined with respect to a vertical line.

Referring to FIGS. 1 and 2, a tilt / vibration switch according to the present embodiment includes a non-conductive hollow cylindrical case 2 and a non-conductive lower part attached to the bottom and top surfaces of the case 2, respectively. A substrate 1 and an upper substrate 4,
A conductive metal sphere 3 capable of freely moving in a space in the case 2, and the upper substrate 4 and the lower substrate 1 are each provided with a first conductive material around a central recess C on a surface to be formed in the case 2. The pattern A as the pattern and the pattern B as the second conductive pattern are separately and alternately arranged, and the patterns A42 and 44 and the pattern B4 of the upper substrate 4 are arranged.
1 and 43 are opposed to patterns B12 and 14 and patterns A11 and 13 of lower substrate 1, respectively.
Mounted on the top and bottom, and although such a matter of course
The metal sphere 3 contacts the pattern A and the pattern B at the same time.
The metal sphere 3 is placed at an appropriate position where it can be touched, and the pattern A
And only when they come into contact with the pattern B at the same time, and at other times, they become non-conductive.

The diameter of the metal sphere 3 is larger than the diameter of the depression C of the lower substrate 1 or the upper substrate 4, and the metal sphere 3 is placed on the depression C of the lower substrate 1 and
The size is such that it does not come into contact with the periphery of the dent C of FIG.

Therefore, when the case 2 is in a normal stationary state, the metal sphere 3 is placed on the recess C of the lower substrate 1, so that the pattern A11,1
3 and the patterns B12 and B14 at the same time.
When the case 2 is in a state of being inclined to some extent,
The metal sphere 3 jumps out of the recess C of the lower substrate 1 and simultaneously contacts both the pattern A11 of the lower substrate 1 and the pattern B41 of the upper substrate 4 or the pattern A13 of the lower substrate 1 and the pattern B43 of the upper substrate 4 At the same time, or simultaneously contacts the pattern B12 of the lower substrate 1 and the pattern A42 of the upper substrate 4, or simultaneously contacts the pattern B14 of the lower substrate 1 and the pattern A44 of the upper substrate 4. Also in these cases, the conduction state is established.

On the outer surface of the upper substrate 4 and the outer surface of the lower substrate 1, patterns A42, 44 and pattern A
First terminals 42a, 4 connected to the first and third terminals 11, 13, respectively;
4a and first terminals 11a and 13a, and patterns B41 and 43 and patterns B12 and 14
And second terminals 41b and 43b and second terminals 12b and 14b respectively connected to the first and second terminals 11a, 13a, and 13b to detect the conductive state and the non-conductive state of the metal sphere 3. The first connection point connecting between 42a and 44a and all the second terminals 12b and 14
b, 41b and a second connection point connecting between 43b.

It is to be noted that, between the first connection point and the second connection point, a generally known conduction detecting means comprising, for example, an SCR gate circuit and a power supply is connected, and the metal sphere 3 is connected. The state of conduction / non-conduction created by the movement of the object is detected.

Next, the operation of this embodiment will be described with reference to FIG.

When the object equipped with the tilt / vibration switch operates and tilts or vibrates, the metal sphere 3 moves in the space in the case 2 and comes into contact with both the pattern A and the pattern B at the same time. Become. In other cases, that is, when both the pattern A and the pattern B are not simultaneously contacted, the state is non-conductive.

The conduction or non-conduction is detected by a conduction detecting means connected to the outside, thereby determining that the object is moving.

When the tilt / vibration switch is in a normal stationary state, as shown in FIG. 3 (a), the metal sphere 3 is placed on the depression C created by the pattern A and the pattern B of the lower substrate 1, and A conductive state is established between the pattern A and the pattern B of the substrate 1 through the metal sphere 3.

In this state, when vibration is applied to the tilt / vibration switch, the metal sphere 3 jumps out of the recess C of the lower substrate 1 and separates from the patterns A and B, so that a non-conductive state is established. When the vibration stops, the metal sphere 3 returns to the original state (the state shown in FIG. 3A).

When a larger vibration is applied, the metal sphere 3
Jumps out of the recess C of the lower substrate 1 and contacts the upper substrate 4. Since the patterns A and B of the upper substrate 4 are arranged so as to have a phase difference of 90 degrees from the patterns A and B of the lower substrate 1, the metal spheres 3 simultaneously contact the upper substrate 4 and the lower substrate 1. Then, when both the pattern A of the upper substrate 4 and the pattern B of the lower substrate 1 or both the pattern B of the upper substrate 4 and the pattern A of the lower substrate 1 are brought into contact, a conductive state is established.

As described above, in the present embodiment, the conduction / non-conduction state is repeated while the object vibrates.

Next, when the tilt / vibration switch itself is tilted at an angle φ (for example, 45 degrees or more), as shown in FIG. 3 (b), the metal sphere 3 is divided into a pattern of the upper substrate 4 and a pattern of the lower substrate 1. It falls into the groove between. In the figure,
The metal sphere 3 is simultaneously in contact with the pattern B of the upper substrate 4 and the pattern A of the lower substrate 1. When a rotation in the circumferential direction is applied to the tilt / vibration switch in this state, the metal sphere 3 moves in a groove between the upper substrate 4 and the lower substrate 1, thereby causing conduction between the pattern A and the pattern B. The non-conductive state is repeated.

Even if the angle φ is greatly inclined and the tilt / vibration switch is turned over and turned upside down, similar patterns A and B are arranged on the upper substrate 4 and the lower substrate 1. The present embodiment can detect any tilt or vibration in any direction.

In this embodiment, two patterns A and B are alternately arranged on the upper substrate and the lower substrate, respectively. However, the number of each pattern is not limited to two, and three or more are used. They may be arranged alternately at intervals around the depressions.

[0029]

As described above, the present invention provides a non-conductive hollow cylindrical case, a non-conductive lower substrate and an upper substrate mounted respectively on the bottom and top surfaces of the case, and a space in the case. The upper substrate and the lower substrate each have a first conductive pattern and a second conductive pattern that are separated from each other around a central recess on a surface in the case. Top and bottom surfaces of the case so that the first conductive pattern and the second conductive pattern of the upper substrate face the second conductive pattern and the first conductive pattern of the lower substrate, respectively. And the conductive sphere is attached to the first
Simultaneous contact with the conductive pattern and the second conductive pattern
It is placed in the appropriate position where it can be touched, and the diameter of the conductive sphere is
The diameter of the recess of the substrate or the lower substrate is larger than the diameter of the lower substrate.
When the conductive sphere rests on the recess of the plate,
It has a size that does not contact the peripheral edge of the sole, and becomes conductive only when the conductive sphere contacts the first conductive pattern and the second conductive pattern at the same time, and otherwise becomes non-conductive. In addition, the first terminal connected to the first conductive pattern and the second terminal connected to the second conductive pattern are provided on the outer surface of the upper substrate and the outer surface of the lower substrate. A first connection point connecting all the first terminals and a second connection point connecting all the second terminals to detect a conductive state and a non-conductive state created by the conductive sphere; By providing,
Since the inclination and vibration of the object can be detected from the outside without providing a power supply in the case, the configuration of the inclination / vibration switch can be simplified.

Further, since the conductive sphere has contact points with the first and second patterns in all directions, the inclination and vibration of the switch can be detected regardless of the direction of the switch. Having.

Further, since the case, the upper and lower substrates, and the conductive spheres are formed, there is an effect that assembly is extremely easy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a tilt / vibration switch of the present invention.

FIG. 2A is a top view of a lower substrate in FIG. 1,
FIG. 2B is a cross-sectional view taken along line II in FIG.

FIG. 3 is a schematic diagram showing an internal state in FIG. 1;
Shows a state in which it is stationary at a normal position, and (b) shows a state in which it is at a position inclined with respect to a vertical line.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 lower substrate 2 case 3 metal sphere 4 upper substrate 11, 13, 42, 44 pattern A 12, 14, 41, 43 pattern B 11a, 13a, 42a, 44a first terminal 41b, 43b second terminal C recess

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01H 35/14 H01H 35/02

Claims (2)

(57) [Claims] 1. A non-conductive hollow cylindrical case, a non-conductive lower substrate and an upper substrate respectively attached to a bottom surface and an upper surface of the case, and a conductive member capable of freely moving in a space in the case. A spherical body, wherein the upper substrate and the lower substrate are arranged such that a first conductive pattern and a second conductive pattern are alternately arranged around a concave portion at a central portion on a surface inside the case. The first conductive pattern and the second conductive pattern of the upper substrate are respectively opposed to the second conductive pattern and the first conductive pattern of the lower substrate. The conductive sphere attached to the top surface and the bottom surface and the conductive sphere is provided on the first conductive pattern and
And an appropriate position capable of simultaneously contacting the second conductive pattern.
And the diameter of the conductive sphere is the same as that of the upper substrate.
The lower substrate is larger than the diameter of the recess and
When the conductive sphere rests on the recess of the substrate,
Having a size that does not come into contact with the periphery of the recess of the partial substrate ,
A tilt / vibration switch which is in a conductive state only when the conductive sphere contacts the first conductive pattern and the second conductive pattern simultaneously, and is in a non-conductive state otherwise. . 2. A first conductive pattern connected to the first conductive pattern on an outer surface of the upper substrate and an outer surface of the lower substrate.
And a second terminal connected to the second conductive pattern, and all the first terminals for detecting the conductive state and the non-conductive state created by the conductive sphere. The tilt / vibration switch according to claim 1, further comprising a first connection point connecting between the second terminals, and a second connection point connecting between all of the second terminals.