JPH09265881A - Inclination and vibration switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect inclination and vibration of a case from the outside by simple constitution by providing a metal globe in the case having two patterns being in conductive state during simultaneous contact with both patterns. SOLUTION: A metal globe 3 moves in a space in a case 2 and enters conductive state when the globe contacts with both patterns A and B simultaneously and enters non-conductive state in the other case. This state is detected by an external conductivity detection means, and it is judged that the case 2 moves. When the metal globe 3 is placed in a recess C which the pattern A of a lower board 1 produces, between patterns A and B enters non-conductive state. If great vibration is applied to the case 2 in this state, the metal globe 3 jumps the recess C, and when the globe contacts with the upper board 4 and the lower board 1 simultaneously, conductive state is entered. Thus, while the case 2 is vibrating, conductive and non-conductive state are repeated. Thus, inclination and vibration of an object on which the case in mounted from the outside without providing a power supply in the case can be detected by simple constitution.

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 tilt and vibration of an object according to 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 are examples of conventional tilt / vibration switches of this type.

Japanese Patent Laid-Open No. 61-180 as a first conventional example.
The "portable alarm device" described in Japanese Patent No. 392 publication has a container formed of a cylindrical portion made of a non-magnetic conductive material and two disc portions formed of an electrically insulating material, and an inner surface of the disc portion. It is composed of radially extending wire rods and metal balls, and the vibration of the wearer causes the metal balls to roll and make contact with the wire rod and the outer wall to detect vibration.

Next, Japanese Patent Laid-Open No. 6-5 as a second conventional example.
In the "fallover / seismic switch" described in Japanese Patent No. 2763, two terminal plates are arranged so as to face each other in the central portion of a recess where the central portion of the body is lowered, and the inner edges of the two terminal plates facing each other are arranged. Position the terminals on substantially the same circle locus to form a gap between the two terminal plates, cover the body with a cap, and insert a conductive ball into the space defined by the body and the cap so that it can move freely. It is placed on the inner peripheral edge of the plate and electrically connects the terminal plates to each other via a ball.

A third conventional example is Japanese Patent Laid-Open No. 61-
In the "vibration sensor" described in Japanese Patent No. 187621, a conductive sphere is movably provided in a portion surrounded by a plurality of pillars, a half of the surface of which is a conductive portion and the other half of which is an insulating portion. Is a vibration sensor that moves on two pillars and causes the two pillars to be conductive or non-conductive.

[0006]

In the first conventional example, when there is no vibration, the wire is supported by the wire and the outer wall, and when there is vibration, the wire and the outer wall are separated from each other and the vibration disappears. Also, because of the structure that returns to a supported state,
There is a problem in that it is impossible to detect a weak vibration that cannot be separated from the supported state.

Next, in the second conventional example, there is a problem that even weak vibrations cannot be detected because they cannot be detected unless an inclination or vibration of a certain angle or more is applied.

Further, in the third conventional example, when the vibration sensor is tilted to be conductive or non-conductive, even if the conductive sphere is moved by vibration, it remains in contact with the pillar material, and detection of conductive or non-conductive is detected. There was a problem that it could not be done.

The object of the present invention is to allow the conductive spheres to move freely within the case without moving vertically or vertically as much as possible, and the conductive spheres move within the case due to vibration or inclination. An object of the present invention is to provide a tilt / vibration switch that reliably detects even weak vibrations and minute tilts by detecting the presence or absence of conduction as non-conduction.

[0010]

According to the present invention, a non-conductive hollow cylindrical case, a non-conductive lower substrate and an upper substrate which are attached to the bottom surface and the top surface of the case, respectively, in the case. Conductive spheres that can freely move in the space, and the upper substrate and the lower substrate each have a first conductive pattern and a second conductive pattern around the center recess on the surface inside the case. Patterns are separated and alternately arranged, and the first conductive patterns and the second conductive patterns of the upper substrate are the second conductive patterns and the first conductive patterns of the lower substrate. And the conductive spheres are attached to the upper surface and the bottom surface of the case so as to face the first conductive pattern and the second conductive pattern, respectively. Tilt and vibration switches are obtained, characterized in that a non-conductive state the other cases with the only conducting state when the.

A first terminal connected to the first conductive pattern and a second terminal connected to the second conductive pattern are formed 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 for detecting the conductive state and the non-conductive state created by the conductive sphere, and between all the second terminals. A tilt / vibration switch is obtained which is provided with a second connecting point connected thereto.

[0012]

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

FIG. 1 is an exploded perspective view showing an 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 sectional view taken along line I-I in FIG. Further, FIG.
6A and 6B are schematic diagrams showing the internal state in FIG. 4A, in which FIG. 7A shows a state of being stationary at a normal position, and FIG. 7B shows a state of being inclined with respect to a vertical line.

Referring to FIGS. 1 and 2, the tilt / vibration switch according to the present embodiment has a non-conductive hollow cylindrical case 2 and a non-conductive lower portion attached to the bottom surface and the top surface of the case 2, respectively. Substrate 1 and upper substrate 4,
The upper substrate 4 and the lower substrate 1 are provided with a conductive metal sphere 3 which can freely move in the space inside the case 2, and the upper substrate 4 and the lower substrate 1 each have a first conductive region around the center recess C on the surface inside the case 2. The pattern A as the pattern and the pattern B as the second conductive pattern are isolated and alternately arranged, and the patterns A 42, 44 and the pattern B 4 of the upper substrate 4 are arranged.
Case 2 so that 1, 43 are opposed to the patterns B12, 14 and the patterns A11, 13 of the lower substrate 1, respectively.
Attached to the upper and lower surfaces of the metal sphere 3 and becomes conductive only when the metal sphere 3 is in contact with the pattern A and the pattern B at the same time, and becomes non-conductive otherwise.

The diameter of the metal sphere 3 is larger than the diameter of the recess C of the lower substrate 1 or the upper substrate 4, and the metal sphere 3 is placed in the recess C of the lower substrate 1 and the metal sphere 3 is in the upper substrate 4.
The size is such that it does not come into contact with the peripheral edge of the recess C.

Therefore, when the case 2 is in a normal stationary state, the metal sphere 3 is placed in the recess C of the lower substrate 1, so that the patterns A11,1 of the lower substrate are formed.
3 and the patterns B12 and 14 simultaneously.
When the case 2 is tilted to some extent,
The metal sphere 3 jumps out from 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. Both of them are simultaneously contacted, or the pattern B12 of the lower substrate 1 and the pattern A42 of the upper substrate 4 are simultaneously contacted, or the pattern B14 of the lower substrate 1 and the pattern A44 of the upper substrate 4 are simultaneously contacted. In these cases as well, it becomes conductive.

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

Between the first connection point and the second connection point, a generally known continuity detecting means composed of, for example, an SCR gate circuit and a power supply is connected to connect the metal sphere 3 to each other. The conduction / non-conduction state created by the movement of 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, the metal sphere 3 moves in the space inside the case 2 due to the tilt or vibration, and when both the pattern A and the pattern B come into contact with each other at the same time, the conductive state is established. Become. In other cases, that is, when both the pattern A and the pattern B are not in contact at the same time, the non-conductive state is established.

It is judged that the object is moving by detecting the conduction or non-conduction by the conduction detecting means connected to the outside.

When the tilt / vibration switch is in a normal stationary state, as shown in FIG. 3 (a), the metal sphere 3 is placed in the recess C formed by the pattern A and the pattern B of the lower substrate 1, and the lower part The pattern A and the pattern B on the substrate 1 are electrically connected through the metal spheres 3.

When vibration is applied to the tilt / vibration switch in this state, the metal sphere 3 pops out of the recess C of the lower substrate 1 and leaves the pattern A and the pattern B, so that the metal sphere 3 becomes non-conductive. When the vibration disappears, the metallic 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 with the patterns A and B of the lower substrate 1, the metal spheres 3 contact the upper substrate 4 and the lower substrate 1 at the same time. Then, if 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 with each other, a conductive state is established.

As described above, in this embodiment, the conductive / non-conductive state is repeated while the object is vibrating.

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

Even if the angle φ is greatly tilted 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, but the number of each pattern is not limited to two, and three or more patterns are used. The recesses may be alternately arranged at intervals around the recesses.

[0029]

As described above, according to the present invention, a non-conductive hollow cylindrical case, a non-conductive lower substrate and an upper substrate which are respectively attached to the bottom surface and the upper surface 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 the central recess on the surface of the upper substrate and the lower substrate. And the first conductive pattern and the second conductive pattern of the upper substrate are arranged alternately and are opposed to the second conductive pattern and the first conductive pattern of the lower substrate, respectively. Attached to the first conductive pattern and the second conductive pattern at the same time, the conductive sphere is brought into a conducting state, and is otherwise brought into a non-conducting state. And, on the outer surface of the upper substrate and the outer surface of the lower substrate, a first terminal connected to the first conductive pattern and a second terminal connected to the second conductive pattern, A first connection point connecting all the first terminals and a second connection point connecting all the second terminals for detecting the conductive state and the non-conductive state created by the conductive sphere; With the provision, since the inclination and vibration of the object can be detected from the outside without providing a power source in the case, there is an effect that the configuration of the inclination / vibration switch can be simplified.

Since the conductive sphere has contact points with the first and second patterns in all directions, the tilt and vibration can be detected regardless of the direction of the switch. Have.

Further, since it is composed of the case, the upper and lower substrates, and the conductive sphere, it has an effect that the assembly is extremely easy.

[Brief description of drawings]

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

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

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

[Explanation of symbols]

 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

Claims (2)

[Claims] 1. A non-conductive hollow cylindrical case, a non-conductive lower substrate and an upper substrate attached to the bottom surface and the top surface of the case, respectively, and a conductive material that can freely move in a space inside the case. A spherical body, and the upper substrate and the lower substrate are alternately arranged with a first conductive pattern and a second conductive pattern separated from each other around a recess in the central portion on a surface inside the case. , The case 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. It is attached to the top surface and the bottom surface and becomes conductive only when the conductive spheres simultaneously contact the first conductive pattern and the second conductive pattern. In addition, the tilt / vibration switch is in a non-conducting state at other times. 2. A first surface connected to the first conductive pattern on the outer surface of the upper substrate and the outer surface of the lower substrate.
And a second terminal connected to the second conductive pattern, 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, wherein a first connection point connecting between the second terminals and a second connection point connecting between all the second terminals are provided.