JP4038535B2 - Shock vibration detection switch - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an impact vibration detection switch, and more particularly to a small impact vibration switch that automatically detects non-directional impact vibration in fields from household appliances to industrial equipment.
[0002]
[Prior art]
Commonly used vibration switches include mechanical vibration switches and vibration switches using mercury.
[0003]
[Problems to be solved by the invention]
Conventional mechanical vibration switches are aged by using springs and weights. ■ The operating sensitivity cannot be adjusted. ■ External dimensions are. Higher sensitivity increases. Slow vibration is not detected. ■ In the slope. Does not work at all. ■ Automatic solder mounting is impossible because mounting to equipment requires soldering to metal fittings and lead wires. ■ The cost increases because there are many parts. ■ There were problems such as difficulty in reducing the diameter. In addition, vibration switches using mercury are easily damaged because they use mercury or glass. ● Because it does not work with minute vibration. Low operating sensitivity. ■ It is difficult to downsize. ■ Because mercury is used, it is dangerous when damaged. ■ Speed vibration is not detected. ■ Even if a tilt is given, it does not work at all. ■ Soldering is necessary for lead wires, so automatic solder mounting is impossible. ■ Because it uses mercury and glass, it becomes expensive. ■ Since mercury expands and contracts in response to seasonally changing temperatures, it has problems such as malfunctions and reduced sensitivity.
[0004]
Accordingly, the present invention has been developed to solve the above-described problems of the prior art, and includes, for example, an anti-theft device, a game machine, a toy, a measuring instrument, an industrial machine vibration detection device, an accessory, and a home appliance. To provide a small impact vibration detection switch for automatically and non-directionally delivering vibration in fields ranging from home appliances to industrial equipment such as detection devices, ON / OFF automatic detection devices for household products, hobby products, security devices, etc. With the goal.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, an impact vibration switch according to the present invention comprises a pair of circular cap-shaped electrodes having a disk portion and a peripheral wall portion, and the electrodes are opposed to each other on the peripheral wall side leaving a required gap. And an annular holding frame that fits and holds, and a plurality of rollable conductive balls having the same diameter that contact the electrodes and make the electrodes conductive with each other, and the disk portion has a diameter smaller than its diameter inside. On the other hand, the annular holding frame has an annular groove having a substantially V-shaped cross section on which the conductive ball accommodated therein can be placed, and the diameter of the conductive ball is It is set to be larger than the width of the space between the middle and high part of the circular protrusion of the electrode and the middle and high part of the circular protrusion of the other electrode, and each conductive sphere is prevented from moving into the space. In the absence of vibration, the conductive sphere contacts the annular groove, And it is characterized in that it is prevented from contacting the serial electrodes both.
Also, the guard vibration detection switch of the present invention is. A pair of circular cap-shaped electrodes having a disk part and a peripheral wall part, and an annular holding frame that holds the electrodes facing the peripheral wall side leaving a required gap and is fitted and held via a ring-shaped insulating member And a plurality of rollable conductive balls having the same diameter which are in contact with the electrodes and are electrically connected to each other, and the lead plate portion has a medium-high circular protrusion having a diameter smaller than the diameter inside thereof. The annular holding frame has an annular groove having a substantially V-shaped cross section in which the conductive sphere accommodated in the annular holding frame can be placed, and the diameter of the conductive sphere is a mid-high portion of the circular protrusion of one electrode. Is set to be larger than the width dimension of the space between the circular protrusion of the other electrode and the middle and high portions of the circular protrusion so that each conductive sphere does not move into the space, The sphere contacts the annular groove and does not contact both electrodes And it is characterized in that it is.
[0006]
[Action]
When the outer circular surface of the disk part of the electrode is positioned on the printed circuit board pattern with the conductive plate and then placed horizontally so that it does not vibrate by being fixed with solder, the conductive spheres form the middle and high circular protrusions of both electrodes. Since it does not contact, it is in an off state. In such an off state, when vibration is applied to the impact vibration detection switch from the outside in the vertical or horizontal direction , the conductive ball comes into contact with the circular protrusion, so that the switch is turned on. In addition, after the sides of both electrodes of the switch are positioned on the printed circuit board pattern. In a state where it is fixed with solder and is vertically disposed so as not to vibrate, it is placed on the bottom of the annular groove and is not in contact with either electrode , so it is in an off state. In such an off state, when a vibration is applied to the impact vibration detection switch from the outside in the vertical or horizontal direction, the conductive ball comes into contact with the middle and high circular protrusions of both electrodes . Turn on.
[0007]
【Example】
Next, an embodiment in which a non-directional vibration detection switch of the present invention is installed vertically will be described with reference to the drawings. FIG. 1 is an explanatory view showing a schematic configuration, and FIG. 2 is an explanatory view showing a state where each member is disassembled. The impact vibration detection switch 10 (hereinafter referred to as the present invention switch) of this embodiment includes three conductive balls 17 having the same diameter, but the number is not limited to three. The switch 10 of the present invention includes a pair of electrodes.
[0008]
Reference numeral 11 denotes a first electrode which is one of a pair of electrodes. The first electrode 11 is a circular cap-shaped electrode having a disc portion 111A and a peripheral wall portion 11B, and the disc portion 11A is disposed on the inside thereof. It has a middle and high circular protrusion having a step portion 11A1 smaller in diameter than the diameter. Reference numeral 11B denotes a peripheral wall portion that constitutes a circular cap-shaped electrode together with the disc portion 11A. In the illustrated example, an annular locking portion 11B1 is provided between the peripheral wall portion and the middle-high circular protrusion. Is formed. Reference numeral 12 denotes a second electrode which is the other electrode of the pair of electrodes. The second electrode 12 has the same shape and structure as the first electrode 11, and each of the first electrode 11 has a circular plate portion, a peripheral wall portion, a stepped portion, a medium-high circular protrusion, and an annular locking portion. corresponding disc portion 12A, and includes a peripheral wall portion 12B, crowned circular projections have a stepped portion 12A1, an annular locking portion 12B1, respectively.
[0009]
Reference numeral 15 denotes an annular holding frame for fitting and holding the first electrode 11 and the second electrode 12 with their peripheral walls 11B and 12B facing each other leaving a required gap 14 as shown in FIG. An annular groove G having a substantially V-shaped cross section on which the conductive ball 17 accommodated inside can be placed. The diameter of each conductive sphere 17 is set to be larger than the width D of the space 13 between the middle and high part of the circular protrusion of the first electrode 11 and the middle and high part of the circular protrusion of the second electrode 12. . Each conductive ball is prevented from moving into the space 13.
[0010]
In the example shown in the figure, the first electrode 11 and the second electrode 12 are provided with ring-shaped insulating members 16 and 16 that are stretched and engaged in a ring shape in the respective annular locking portions 11B1 and 12B1. Are closely fitted and held on the annular holding frame 15. In the illustrated example, the substantially V-shaped annular groove G of the annular holding frame 15 includes protrusions 15A and 15A, inclined surfaces 15A1 and 15A1 of about 30 degrees, and a flat portion 15A2. When impact vibration is applied to the inventive switch, the conductive ball 17 is moved from the state or position placed in the emotional groove G, as can be seen from FIG. In the movable cavity, the electrodes 11 and 12 are brought into contact with each other, and the two electrodes are brought into conduction. In FIG. 2, 15B and 15B are locking portions, and 15C and 15D are circular protrusions having the middle and high portions 11A1 and 12A1 of the electrodes described above when the electrodes 11 and 12 are fitted to the annular holding frame 15, respectively. It is a through hole for allowing insertion into the frame.
[0011]
In one embodiment of the non-directional vibration switch according to the present invention having the above-described configuration,. In a state where there is no vibration, the conductive member 17 is placed on the annular holding frame 15 as shown by a solid line in FIG. 1 and does not contact the step portion 11A of the first electrode 11 and the step portion 12A of the second electrode 12. It ’s off. That is. The conductive member 17 contacts only the inclined surface 15A1 of about 30 degrees of the annular groove G as shown by the solid line in FIG. It does not contact any of the step portion 11A of the first electrode 11 and the step portion 12A of the second electrode 12. In this state, when vibration is applied to the vibration detection switch 10 in the vertical or horizontal direction from the outside, one of the three conductive members 17 is the first as shown by the one-dot chain line in FIG. Since it contacts the step portion 11A of the electrode 11 and the step portion 12A of the second electrode 12, it is turned on. In this ON state, the diameter of the conductive member 17 is longer than the distance D of the space 13 formed by the step portion 11A of the first electrode 11 and the step portion 12A of the second electrode 12. The conductive member 17 does not move into the void 13. For this reason, as indicated by a one-dot chain line in FIG. 1, only one of the three conductive members 17 is on while it is in contact with the step portion 11A1 of the first electrode 11 and the step portion 12A of the second electrode 12. However, if the conductive member 17 moves to the position where it is placed on the holding frame 15 as shown by the solid line in FIG. Also. For the first electrode 11, the measure 2 electrode 12 and the conductive member 17. Since plating is applied, it is possible to improve conductivity and prevent internal oxidation. Furthermore, as shown in FIGS. 3 and 4, the shock vibration detection switch 10 is vertically or horizontally placed and fixed to the printed circuit board 19 with the solder 21, so that it can be used according to the application. Furthermore again. The first electrode 11, the second electrode 12 and the conductive member 17 are. Since plating is applied, it is possible to improve conductivity and prevent internal oxidation. By the way, three spherical conductive members 17 are accommodated in the first electrode 11 and the second electrode 12 in the case where they are placed vertically, the conductive member 17 located at the bottom is the base. This is because the remaining two conductive members 17 are close to the horizontal direction and can easily come into contact with the stepped portion 11A of the first electrode 11 and the stepped portion 12A of the second electrode 12.
(2) When the device is placed horizontally, the conductive member 17 prevents the circumferential movement inside.
[0012]
In such an embodiment of the impact vibration detection switch according to the present invention, the detection of vibration is omnidirectional, so that it can deal with vibrations in all directions and has a wide range of applications. ■ External strength is high because the electrode is metal. ■ Since a ball bearing ball is used for the conductive ball, it can be downsized. ■ Because it is a mechanical contact, unlike the conventional case, no signal amplification circuit is required, so the configuration is simplified. In addition, the sensitivity is higher than that of a conventional omnidirectional vibration switch, and the sensitivity can be adjusted. ■ Spring magnets Since mercury and magnets are not used, the unstable operation due to changes over time, the danger to the human body, and the effects of external magnetism are eliminated. ■ Since the material is a general-purpose product, the cost can be reduced.
[0013]
【The invention's effect】
As described above, the impact vibration detection switch according to the present invention can automatically detect vibrations with no directivity, and thus can be reduced in size and performance and reliability compared to conventional vibration switches. As a result, the cost can be significantly reduced and the number of applications can be greatly increased.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a schematic configuration of a first embodiment of an impact vibration detection switch. FIG. 2 is an explanation of each member of the first embodiment of the impact vibration detection switch. FIG. FIG. 4 is an explanatory diagram of a state where the embodiment is used in a vertical position. FIG. 4 is an explanatory diagram of a state where the first embodiment of the shock vibration detection switch is used in a horizontal position. FIG. FIG. 6 is an explanatory view showing a schematic configuration of the second embodiment. FIG. 6 is an explanatory view of each member of the second embodiment of the shock vibration detection switch. FIG. 7 is a vertical use of the second embodiment of the shock vibration detection switch. Explanatory diagram of the state in which it is in operation [Fig. 8] Explanatory diagram of the state of using the shock vibration detection switch measure 2 embodiment in a horizontal position [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Shock vibration detection switch 11 ... 1st electrode 12 ... 2nd electrode 13 ... Cavity part 14 ... Cavity part 15 ... Mounting member 16 ... Insulating member 17 ... Conductive member 100 ... shock vibration detection switch 110 ... first electrode 120 ... second electrode 130 ... cavity 140 ... gap 150 ... mounting member 160 ... lid 170- ..Conductive members

Claims (2)

A pair of circular cap-shaped electrodes having a disk part and a peripheral wall part, an annular holding frame for fitting and holding the electrodes with their peripheral wall sides facing each other leaving a required gap, and the electrodes in contact with the electrodes It is composed of a plurality of rollable conductive balls having the same diameter that conduct each other, and the disk portion has a medium-high circular protrusion having a diameter smaller than its diameter on the inner side, while the annular holding frame is on the inner side. An annular groove having a substantially V-shaped cross section on which the conductive sphere accommodated therein can be placed, and the diameter of the conductive sphere is the middle height of the circular protrusion of one electrode and the circular protrusion of the other electrode. It is set to be larger than the width dimension of the space between the middle and high portions, so that each conductive ball does not move into the space, and in the absence of vibration, the conductive ball contacts the annular groove, The electrodes are configured not to contact both electrodes. Vibration detection switch. A pair of circular cap-shaped electrodes having a disk part and a peripheral wall part, and an annular holding frame that holds the electrodes facing the peripheral wall side leaving a required gap and is fitted and held via a ring-shaped insulating member And a plurality of rollable conductive balls having the same diameter that are in contact with the electrodes and electrically connect the electrodes, and the disk portion has a medium-high circular protrusion having a diameter smaller than the diameter inside thereof. The annular holding frame has an annular groove having a substantially V-shaped cross section in which the conductive sphere accommodated in the annular holding frame can be placed, and the diameter of the conductive sphere is a mid-high portion of the circular protrusion of one electrode. Is set to be larger than the width dimension of the space between the circular protrusion of the other electrode and the middle and high portions of the circular protrusion so that each conductive sphere does not move into the space, The sphere contacts the annular groove and does not contact both electrodes Shock vibration detecting switch, characterized in that it is.

Images