KR100736658B1 - Tip-over sensor for all direction - Google Patents

Abstract

A tip-over sensor for all direction is provided to easily detect whether being returned within a predetermined angle after downwardly inclining by a predetermined angle. A tip-over sensor(20) for all direction includes a case(21), a placing recess(22), a first slope(23), a second slope(24), a conductor(25), and a central electrode(26). The case has the placing recess formed in the inner center and the entrance of the placing recess upwardly orients when the tip-over sensor vertically erects. The first slope is an inclined surface with a funnel shape coupled with the entrance of the placing recess, and the second slope is an inclined surface made of a conductive material and extended from the first slope. The second slope has an oblique angle with respect to a horizontal axis less than that of the first slope. The conductor is a sphere made of conductive material, is placed in the placing recess when the case is vertically erected, and moves toward the second slope along the first slope.

Description

Tilt-over tilt sensor {TIP-OVER SENSOR FOR ALL DIRECTION}

1 is a perspective view of an omnidirectional tilt sensor according to an embodiment of the present invention;

2 is a conceptual diagram showing the operating principle of the omnidirectional tilt sensor;

3 is a conceptual diagram of an omnidirectional tilt sensor according to another embodiment of the present invention;

4 is a perspective view of an omnidirectional tilt sensor according to another embodiment of the present invention;

5 is a conceptual diagram of an omnidirectional tilt sensor according to another embodiment of the present invention;

6 is a conceptual diagram illustrating an operation principle of a omnidirectional tilt sensor according to another embodiment;

7 is a detailed view of the inclined surface inlet edge portion.

<Description of Symbols for Major Parts of Drawings>

20: omnidirectional tilt sensor 21: case

22: seating groove 23: the first slope

24: 2nd inclined surface 25: Challenge tool

26: center electrode 27: electric wire

28: cone 29: slope

30: insulator 40: lubricant

The present invention relates to an omnidirectional inclination sensor, and more particularly to an omnidirectional inclination sensor for detecting the inclination according to the energization of the conductive sphere moving according to the inclination of the sensor.

The inclination sensor is applied to various devices, and may be classified into several types according to the characteristics to be specifically detected. That is, the sensor is divided into a sensor used to measure the inclination angle of the object, a sensor for determining whether the inclination is greater than the reference angle.

In the case of the first sensor, the angle is measured using the change of resistance value of the variable resistor connected to the weight always pointing downward, regardless of the sensor's inclination by gravity, or of the conductive liquid flowing according to the inclination in the closed tube. A sensor using the change of current according to the change of contact point was developed.

The second sensor is used to visually check the location of water droplets contained in the liquid, or to detect a rolling ball according to the tilt of the sensor.

However, in addition to the above-described applications, there is also a need for a sensor that detects whether the tilted angle is more than a predetermined angle with respect to the repetitive movement and then returned within another predetermined angle. For example, it is a sensor required for measuring the number of times of operation of the breaker, or a full manifold, which is a rhythm counter for measuring the number of times. In addition, it can be used in a variety of general-purpose devices that detect a constant angle, such as detecting the trunk of the car, pedometer, rice cooker door, kimchi refrigerator door.

In the case of a sensor for measuring an accurate inclination angle of the conventional sensor, since the number of components and the structure is complicated, the manufacturing cost is high due to the high material cost and assembly cost. Therefore, there is a need for the development of a sensor that is not suitable for application to the tilt change as described above, can be applied at low cost, and the structure is simple and easy to manufacture and repair.

In addition, in the case of the tilt sensor of the method of simply comparing with a certain angle, there is a problem of malfunction is difficult to apply. That is, even when there is tremor or slight inclination change in the vicinity of the reference angle, the sensor judges that the sensor is inclined and returned again, so that it is impossible to accurately measure the number of times.

In addition, the existing sensors can detect the change in the inclination only in one direction because the sensor can operate only in a certain direction, there is a problem that the mounting position and mounting direction of the sensor is limited.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above contents, and an object thereof is to provide an omnidirectional inclination sensor that detects whether an inclination is lowered below a predetermined angle and returned within another predetermined angle.

Another object of the present invention is to provide an economical omnidirectional tilt sensor that can be manufactured at low cost.

Still another object of the present invention is to provide an omnidirectional inclination sensor which can check whether the sensor is inclined in all directions regardless of the installation direction of the sensor, and there is no risk of malfunction.

In order to achieve the above object, the omnidirectional inclination sensor of the present invention, the omnidirectional inclination sensor, a case in which a seating groove is formed in the inner center lower portion; A funnel-shaped first inclined surface coupled to the inlet of the seating groove; A second inclined surface extending from the first inclined surface and having an inclination with respect to a vertical axis greater than the first inclined surface and made of a conductive material; A conductive tool disposed in a seating groove when the case is standing vertically and moving to the second inclined surface along the first inclined surface as the case is inclined; And a center electrode mounted on an upper portion of the center of the case to electrically contact the second inclined surface through the conductive sphere when the conductive sphere is located on the second inclined surface.

The electronic device may further include a signal processor configured to detect whether electricity is supplied between the center electrode and the second inclined surface and determine whether the omnidirectional inclination sensor is inclined by a predetermined angle or more and returned within another predetermined angle.

At this time, the seating groove has a concave groove shape in which the conductive tool is seated, and the inclination of the seating groove inlet tangent plane is the same as that of the first inclined plane.

For stable measurement, it is also possible to fill the inner space of the case in which the conductive sphere is moved with lubricating oil.

In addition, it may further include an insulating cone mounted between the center electrode and the first inclined surface and having a side surface parallel to the first inclined surface.

In addition, the omnidirectional inclination sensor of the present invention, the omnidirectional inclination sensor, a case in which a seating groove is formed in the inner center lower portion; An inclined surface made of a funnel-shaped conductive material coupled to the inlet of the seating groove; A cylindrical center electrode installed to be spaced apart from the inlet of the inclined surface opposite the seating groove; When the case is standing vertically, it is disposed in a seating groove, and as the case is inclined, the case moves to the opposite side along the inclined surface so that the inclined surface and the center electrode are energized with each other, between the inlet of the inclined surface and the center electrode. A conductive ball that is settled by losing; And a signal processor that detects whether electricity is supplied between the center electrode and the inclined surface and determines whether the omnidirectional inclination sensor is inclined by a predetermined angle or more and returned within another predetermined angle.

Even in this case, the inner space of the case in which the conductive sphere is moved may be filled with lubricating oil, or may further include an insulating cone mounted between the center electrode and the inclined surface and having a side surface parallel to the inclined surface.

In addition, the edge of the inlet of the inclined surface and the corner of the center electrode, which the conductive sphere contacts, may be formed as an arc having a radius equal to the radius of the conductive sphere.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an omnidirectional tilt sensor according to an embodiment of the present invention.

Referring to FIG. 1, the omnidirectional tilt sensor 20 of the present invention includes a case 21, a seating groove 22, a first inclined surface 23, a second inclined surface 24, a conductive hole 25, and a center electrode ( 26).

The case 21 has a seating groove 22 formed at an inner center thereof, and when the omnidirectional tilt sensor 20 stands vertically, the inlet of the seating groove 22 faces upward.

As shown in FIG. 1, the first inclined surface 23 is a funnel-shaped inclined surface coupled to the inlet of the seating groove 22, and the second inclined surface 24 extends from the first inclined surface 23. An inclined surface consisting of: an inclination angle with respect to the horizontal axis is smaller than the inclination angle of the first inclined surface 23.

The conductive sphere 25 is a sphere made of a conductive material, and as described above, when the case 21 stands vertically, it is disposed in the seating groove 22, and as the case 21 is inclined, the first inclined surface ( The second inclined surface 24 is moved along the 23.

When the inclined omnidirectional inclination sensor returns to the inclination within a predetermined angle, the conductive tool 25 is moved along the first inclined surface 23 again to be disposed in the seating groove 22.

The center electrode 26 is mounted on the center of the case 21, and when the conductive sphere 25 is positioned on the second inclined surface 24, the center electrode 26 is in electrical contact with the second inclined surface 24 through the conductive sphere 25. .

As described above, according to the inclination of the omnidirectional inclination sensor 20, the conductive opening 25 is positioned in the seating groove 22 or the second inclined surface 24. In this case, the center electrode 26 and the second inclined surface 24 are disposed. When each of the wires 27a and 27b is connected to each other to check whether electricity is supplied from the wire ends A and B, the two wires 27a and 27b are energized or disconnected depending on the position of the conductive hole 25.

As described above, the basic operation principle of the omnidirectional tilt sensor 20 is to check whether the sensor 20 is inclined by checking whether the omnidirectional tilt sensor 20 is energized.

The operation principle of the omnidirectional tilt sensor 20 is described in detail as follows.

2 is a conceptual diagram showing the operating principle of the omnidirectional tilt sensor.

Referring to FIG. 2, when the omnidirectional inclination sensor 20 stands vertically (step a), the conductive holes 25 are disposed in the seating grooves 22.

When the wires 27a and 27b are connected to the center electrode 26 and the second inclined surface 24, respectively, the A stage connected to the center electrode 26 and the B stage connected to the second inclined surface 24 are disconnected from each other.

The next step (b step) means a state in which the omnidirectional tilt sensor 20 is inclined by a predetermined angle. At this time, when the angle formed by the first inclined surface 23 with the horizontal axis is α, and the angle formed by the second inclined surface 24 with the horizontal axis is β, the omnidirectional inclination sensor 20 is inclined by α with respect to the vertical and the first The inclined surface 23 is horizontal.

When the omnidirectional inclination sensor 20 is inclined at more than α with respect to the vertical, the conductive sphere 25 disposed in the seating groove 22 is rolled in the direction of the second inclined surface 24 along the first inclined surface 23, At this time, the A stage and the B stage are still disconnected.

The center electrode 26 and the second inclined surface 24 are electrically contacted when the conductive tool 25 which has started to roll along the first inclined surface 23 is positioned on the second inclined surface 24 (step c). The A stage and the B stage can be energized with each other, and the controller 30 checks whether the inclination sensor 20 is inclined by the energization of the A stage and the B stage.

When the omnidirectional tilt sensor 20 returns by a predetermined angle (step d), that is, when the omnidirectional tilt sensor 20 is inclined by β with respect to the vertical, the conductive sphere 25 is rolled again from the second inclined surface 24. Begin and eventually return to the original standing state (step a).

At this time, while the conductive sphere 25 is separated between the second inclined surface 24 and the center electrode 26, the A stage and the B stage are disconnected again, and the omnidirectional inclination sensor is inclined at a predetermined angle α or more. , It means to return to within another predetermined angle β again.

The angle at which the omnidirectional inclination sensor 20 is energized while being tilted, that is, the angle at which the first inclined surface 23 is formed with the horizontal plane is referred to as an energization angle, and the angle at which the omnidirectional inclination sensor 20 is disconnected as it is returned to its original state, namely When the angle formed by the second inclined surface 24 with the horizontal plane is a short electric angle, the energization of the omnidirectional inclination sensor 20 is determined by the energizing angle and the short electrical angle.

For example, when the conduction angle α is 80 ° and the disconnection angle β is 30 °, it is energized when the omnidirectional inclination sensor 20 is inclined by 80 ° or more, and power is cut only when it is set within 30 ° again.

When the omnidirectional tilt sensor of the present invention is applied to detect the operation frequency of the breaker, the omnidirectional tilt sensor is mounted on the breaker bar of the breaker, and the breaker bar of the breaker standing horizontally rises above the short-circuit angle with respect to the vertical and falls below the conduction angle. By detecting it, the breaker operation count is detected.

At this time, if the blocking bar is simply shaken up or down, or if the blocking bar is slightly raised and lowered, it is not included in the number of operations, so that the correct number of openings of the blocking bar can be detected.

Another application method is to detect the number of times of baptism in Buddhist rituals, and when applying the omnidirectional tilt sensor of the present invention, the omnidirectional tilt sensor is vertically attached to the body of the bowed man, and the bowel bends the waist by bowing. Is to detect the case using the omni-directional inclination sensor.

At this time, the omnidirectional inclination sensor is energized when it is inclined below the conduction angle with respect to the vertical direction, and is disconnected only when it is returned above the shorten angle. Therefore, it is possible to count the number of cuts, that is, the number of times of baptism by checking whether the omnidirectional inclination sensor is energized. have.

In this case, like the breaker, the sensor does not operate when the performer simply bends the waist slightly or moves slightly up, down, left, and right, so that the exact number of times of baptism is possible.

In other words, it is recognized as having completed 1 times when energization and disconnection have been made, such as when the user leans slightly at the waist, performs a different motion (for example, a cloud motion) while bowing lower back, or does not extend the waist completely. Incomplete baptisms do not count.

Referring to FIG. 1, since the first inclined surface 23 and the second inclined surface 24 have a funnel shape symmetrical with respect to the vertical axis, the same inclination in the omnidirectional inclination sensor 20 performs the same operation. .

That is, the omnidirectional inclination sensor 20 is mounted in any position and in which direction, the omnidirectional inclination sensor 20 operates in the same way.

In order to check whether the omnidirectional inclination sensor 20 is operated as described above, the omnidirectional inclination sensor 20 is inclined at a predetermined angle or more by sensing the energization between the center electrode 26 and the second inclined surface 24. The apparatus may further include a signal processor (not shown) for determining whether to return within another predetermined angle.

The signal processor for detecting the number of energizations of the omnidirectional tilt sensor 20 may be generally made of a microcomputer or a single chip.

Referring to FIG. 1, the mounting groove 22 has a concave groove shape in which the conductive holes 25 are seated, and the inclination of the inlet contact plane of the mounting groove 22 may be the same as the inclination of the first inclined surface 23.

This is for the conductive sphere 25 to immediately react when the omnidirectional inclination sensor 20 is inclined to roll in the direction of the second inclined surface 24.

3 is a conceptual diagram of an omnidirectional tilt sensor according to another embodiment of the present invention.

Referring to FIG. 3, the inner space of the case 21 in which the conductive sphere 25 moves may be filled with the lubricating oil 40.

If the moving space of the conductive sphere 25 is empty, there is an advantage that reacts sensitively according to the inclination of the case 21. However, there is a problem that the conductive sphere 25 bounces due to the external shock applied to the case 21 while having the advantage of reacting sensitively. In other words, energization and power failure do not occur according to the change of the slope, but power failure may occur due to a momentary impact.

That is, as shown in FIG. 2, when the conductive sphere 25 is located between the second inclined surface 24 and the center electrode 26 (step c), the conductive sphere 25 is temporarily damaged by an external impact. There is a possibility that the second inclined surface 24 and the center electrode 26 are separated and short-circuited momentarily.

Accordingly, there is an inconvenience in that the signal processor performs a separate signal processing in software to remove noise due to an impact or to solve a problem by a hardware method such as a filter.

In order to prevent such a problem, as shown in FIG. 3, when the moving space of the conductive sphere is filled with a liquid material such as the lubricating oil 40, the lubricating oil 40 and the conductive sphere 25, which are filling materials in the moving space, are filled. The density difference between them becomes small, and the movement of the electrically conductive tool 25 becomes smooth. Although, the reaction time due to the change in the slope may be slightly slow, there is an advantage that the conductive sphere is not splashed by the external impact.

Therefore, stable tilt detection is possible by preventing instantaneous short-circuit of the omnidirectional tilt sensor due to external shock, and it is easy to obtain a normal operation signal without noise signal without additional signal processing. have.

The liquid material that fills the moving space of the conductive sphere is a material that smoothes the movement of the conductive sphere, such as lubricating oil. In addition to the lubricating oil, rust preventive oil may be used to prevent corrosion of the conductive sphere and the center electrode.

4 is a perspective view of an omnidirectional tilt sensor according to another embodiment of the present invention.

Referring to FIG. 4, the omnidirectional inclination sensor 20 of the present invention is mounted between the center electrode 26 and the first inclined surface 24 and has an insulating cone 28 having a side surface parallel to the first inclined surface 23. ) May be further included.

The conductive tool 25 reciprocates the seating groove 22 and the second inclined surface 24 along the first inclined surface 23, and suddenly impacts the conductive tool 25 while moving along the first inclined surface 23. As a result, it may be caused to bounce off the first inclined surface.

As described above, when the impact of the conductive tool 25 is shaken and the impact on the first inclined surface 23 is repeated, the first inclined surface 23 may be damaged, so that the durability of the omnidirectional inclination sensor 20 may be improved and stable inclination may be detected. Mounting an insulating cone 28.

5 is a conceptual diagram of an omnidirectional tilt sensor according to another embodiment of the present invention, and FIG. 6 is a conceptual diagram illustrating an operation principle of an omnidirectional tilt sensor according to another embodiment.

Referring to FIG. 5, the omnidirectional tilt sensor of the present invention includes a case 21, an inclined surface 29, a center electrode 26, a conductive sphere 25, and a signal processor (not shown).

Compared with the first embodiment of the omnidirectional tilt sensor described above, the difference is as follows.

In another embodiment of the present invention, the omnidirectional inclination sensor is provided with the center electrode 26 separated from the inlet 29a of the inclined surface 29 corresponding to the first inclined surface of the first embodiment at a predetermined distance d. The electrode 26 has a cylindrical shape and is electrically connected between the A end electrically connected to the center electrode 26 and the B end electrically connected to the inclined surface 29 while the conductive sphere is seated between the inlet 29a and the center electrode of the inclined surface 29. Energized.

In the first embodiment, the conductive sphere is in contact with the second inclined plane and the bottom of the cylindrical center electrode. In this case, the conductive sphere is in point contact with the second inclined surface and the bottom surface of the center electrode, and as described above, the conductive sphere bounces instantaneously due to an external impact, thereby causing a power failure.

However, as illustrated in FIG. 5, when the conductive hole 25 is seated between the inclined plane inlet 29a and the inner edge 26a of the center electrode 26, even if the same point contact is made, the conductive hole 25 Since the portion in contact with the () corresponds to the edge, the surface of the conductive sphere 25 is finely pressed by the edges (29a, 26a) has the advantage that the electrical conductivity is improved.

Also, referring to FIG. 2, in the first embodiment, the basic operating principle is that the conductive sphere 25 is placed between the second inclined surface 24 and the center electrode 26 and is energized, and the second inclined surface 24 and the horizontal surface are electrically operated. The angle β, that is, the angle at which the sensor operates is determined according to the short electric angle β.

In another embodiment, the omnidirectional inclination sensor, as shown in FIG. 6, the conductive hole 25 is seated in the position where the vertical line in the direction of gravity from the center of the conductive hole 25 crosses the edge of the inclined surface inlet. A short circuit occurs as it begins to roll.

At this time, the angle at which the vertical line in the direction of gravity passes the edge of the inclined surface inlet is determined by the distance d between the inclined surface inlet and the center electrode 26. For example, when the distance d1 is narrow as shown in (b) of FIG. 6 (a), when the distance d2 is wide as shown in (b), the power failure occurs in a case where the case 21 is further upright. Able to know. In this way, it is possible to adjust the angle at which the power failure occurs by adjusting the distance d between the inclined plane inlet 29a and the center electrode 26.

In addition, it is preferable to insert the insulator 30 between the center electrode 26 and the inclined surface 29 in order to prevent the malfunction in the standing state.

In addition, it is also possible to improve the contact performance with the conductive sphere by processing the shape of the inclined surface inlet into an arc shape having the same radius as the conductive sphere.

Fig. 7 is a detailed view of the inclined inlet edge portion, and as shown in Fig. 7, the corner 29a of the inclined plane inlet and the corner 26a of the center electrode, which the conductive opening 25 contacts, correspond to the radius of the conductive opening. It is possible to form a circular arc.

This is to prevent the phenomenon of instantaneous power cut-off by external impact by improving contactability by changing the contact area with the conductive sphere instead of point contact.

As described above, the omnidirectional inclination sensor according to the exemplary embodiment of the present invention may easily detect whether the object is inclined below a certain angle and returned within a predetermined angle.

Conventional inclination sensor has been the mainstream to use mercury, mercury is a powerful industrial waste containing the problem of environmental pollution, whereas the omnidirectional tilt sensor of the present invention is harmless to the human body and has an environmentally friendly effect.

In addition, since it is a simple structure and easy to manufacture and repair, there is an effect of reducing the cost economically.

In addition, since it can be manufactured in a small size, it is easy to install at various positions, and thus has an excellent applicability.

What has been described above is only one embodiment for implementing the omni-directional inclination sensor according to the present invention, the present invention is not limited to the above-described embodiment, the subject matter of the present invention as claimed in the following claims Without departing, those skilled in the art to which the present invention pertains to the technical spirit of the present invention to the extent that various modifications can be made.

Claims (9)

In the omnidirectional tilt sensor, A case in which a seating groove is formed in the lower inner center; A funnel-shaped first inclined surface coupled to the inlet of the seating groove; A second inclined surface extending from the first inclined surface and having an inclination with respect to a vertical axis greater than the first inclined surface and made of a conductive material; A conductive tool disposed in a seating groove when the case is standing vertically and moving to the second inclined surface along the first inclined surface as the case is inclined; And And a center electrode mounted on the center of the case to electrically contact the second inclined surface through the conductive sphere when the conductive tool is located on the second inclined surface. The method of claim 1, And a signal processor for detecting whether the center electrode and the second inclined surface are energized and determining whether the omnidirectional inclination sensor is inclined at a predetermined angle or more and returned within another predetermined angle. . The method of claim 2, The seating groove has a concave groove shape in which the conductive tool is seated, and the inclination of the seating groove inlet contact plane is equal to the inclination of the first inclined plane. The method according to any one of claims 1 to 3, The omnidirectional tilt sensor, characterized in that the inner space of the case to which the conductive sphere is moved is filled with lubricating oil. The method of claim 4, wherein And an insulating cone mounted between the center electrode and the first inclined surface, the insulating cone having a side surface parallel to the first inclined surface. In the omnidirectional tilt sensor, A case in which a seating groove is formed in the lower inner center; An inclined surface made of a funnel-shaped conductive material coupled to the inlet of the seating groove; A cylindrical center electrode installed to be spaced apart from the inlet of the inclined surface opposite the seating groove; When the case is standing vertically, it is disposed in a seating groove, and as the case is inclined, the case moves to the opposite side along the inclined surface so that the inclined surface and the center electrode are energized with each other, between the inlet of the inclined surface and the center electrode. A conductive ball that is settled by losing; And And a signal processor that detects whether electricity is supplied between the center electrode and the inclined surface and determines whether the omnidirectional inclination sensor is inclined by a predetermined angle or more and returned within another predetermined angle. The method of claim 6, The omnidirectional tilt sensor, characterized in that the inner space of the case to which the conductive sphere is moved is filled with lubricating oil. The method of claim 7, wherein And an insulating cone mounted between the center electrode and the inclined surface, the insulating cone having a side surface parallel to the inclined surface. The method according to any one of claims 6 to 8, And the corner of the inlet of the inclined surface and the corner of the center electrode contacted by the conductive sphere are formed in an arc having a radius equal to the radius of the conductive sphere.

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