KR101416952B1 - Self-power generating apparatus for rf switch without battery or electrical energy and for the same - Google Patents

Abstract

A self power generation apparatus for implementing a power-free wireless switch according to the present invention comprises: a housing; a coil wound around the housing; a first magnetic body laid to penetrate through the inner part of the coil; a magnet arranged in an inner space of the first magnetic body; and a second magnetic body composed of an upper plate with N polarity and a lower plate with S polarity, attaching the upper plate with the N polarity on an upper surface of the magnet and attaching the lower plate with the S polarity, wherein the first magnetic body changes directions of a magnetic field flowing into the center of the coil while moving up and down within the housing to generate flowing electric current in the coil. The present invention minimizes a displacement of the magnetic body within the coil by fixating the magnet and the coil and changing the property of the magnetic body passing through the coil, and causes changes of the magnetic field within a set space by changing magnetic polarities to maximize the changes of the magnetic field within the coil, thereby, minimizing a space needed for a rotational or a linear movement in order to change the magnetic field within the coil, so a product may be small-sized.

Description

[0001] SELF-POWER GENERATING APPARATUS FOR RF SWITCH WITHOUT BATTERY OR ELECTRICAL ENERGY AND FOR THE SAME [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric power generating device for implementing a non-power wireless switch, and more particularly, to an electric power generating device for realizing a non-power wireless switch for wirelessly transmitting operation information of a switch without an energy source, ≪ / RTI >

Conventional wireless switches require a separate power supply because the data transmission method is wireless. That is, it is necessary to perform piping, wiring work or periodic battery replacement for electricity supply.

Ubiquitous Sensor Network (Ubiquitous Sensor Network) data communication is wireless, but power is supplied through battery and wire. The wired connection for powering USN nodes in large areas and the regular replacement of batteries in thousands of sensors are costly and labor intensive. Therefore, it is necessary to provide persistence technology of RFID / USN sensor nodes.

Lithium-ion secondary batteries are mainly used as power sources for portable wireless electronic devices and various sensors. However, if current battery is used as a power source, data can be transmitted wirelessly for one to three years. If the current battery capacity is limited to the power source to the wireless sensor system.

One disposable battery can contaminate 600,000 liters of water and 1.6 square meters of land. Cell phones, digital cameras, and other essential devices are easily used in everyday life, but when you throw it away, most of them are left in the trash. However, if the waste batteries are not treated in the correct way, environmental and heavy metal contamination problems can occur. The accumulation of heavy metals such as lead, cadmium, and arsenic from batteries that have reached the end of their useful life is a toxic substance that can damage the nervous system and liver and damage the skin and digestive system. If sewage is discharged, there is a risk of causing environmental pollution including soil and groundwater.

Rare earths are used to produce batteries, and the price of rare earths now rises to the ceiling. In addition, the amount is not so large, and it takes a lot of burden to secure rare earths. Therefore, it is necessary to improve environmental pollution through No Battery technology.

Of the following prior art documents, Patent Documents 1 and 2 require the design of space and structure for rotational motion in converting kinetic energy by rotational motion into electrical energy. Although the electric energy system by the linear motion of the magnet in the coil can be considered, this method also requires a moving space equal to the length of the magnet in order to obtain the maximum magnetic field changing effect. Patent Document 3 requires a piezoelectric element as a structure for converting vertical kinetic energy into electric energy using a piezoelectric element, has a structure for applying a pressure perpendicular to the piezoelectric element, and has a disadvantage that the price of the piezoelectric element is high.

KR 0980206 B1 KR 1061692 B1 KR 2010-0125282 A

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a magnetic recording medium in which the magnetism and the coil are fixed and the properties of the magnetic substance passing through the coil are changed to minimize the displacement of the magnetic substance in the coil, And it is an object of the present invention to provide a self-power generation device for implementing a wireless power switch which can cause a change in a magnetic field in a predetermined space.

It is another object of the present invention to provide a self-generating device for implementing a power-free wireless switch capable of generating a maximum efficiency power with a minimum displacement in a given space by adding an elastic body to the iron core.

To achieve the above object, according to an aspect of the present invention, there is provided a self-powered device for implementing a wireless power switch, comprising: a housing; A coil wound around the housing; A first magnetic body placed through the inside of the coil; A magnet disposed in an inner space of the first magnetic body; And an upper plate having an N pole and an upper plate having an S pole, wherein an upper plate having the N pole is attached to an upper side portion of the magnet, and a second magnetic body having a lower plate having the S pole attached to a lower side portion of the magnet, And the first magnetic body moves up and down in the housing to change a direction of a magnetic field flowing to the center of the coil to generate a current flowing in the coil.

According to the present invention, magnetic poles are changed to change the magnetic field in a predetermined space by fixing the magnet and the coil, changing the property of the magnetic body passing through the coil, minimizing the displacement of the magnetic body in the coil and maximizing the change of the magnetic field in the coil It is possible to minimize the space required for the rotation or linear motion for changing the magnetic field in the coil, thereby achieving the miniaturization of the product.

Further, by adding an elastic body on the iron core, it is possible to generate a maximum efficiency power with a minimum displacement in a given space.

In addition, the method using the change of the magnetic field is superior in efficiency in the same area (volume) than the method using the piezoelectric element, and the electromagnetic induction method can realize the mechanism with the primary processed product without using the expensive piezoelectric element, The mechanism of the mechanism can be configured, which leads to superior productivity and economical efficiency.

In addition, since no countermeasures are required for a separate power source, it is possible to prevent the secondary environmental damage such as the reduction of the construction cost and the production and disposal of the subsidiary materials necessary for the construction.

In addition, it is possible to install the wireless switch even in a harsh environment, and the system can be continuously operated.

In addition, there is an effect that the battery recycling cost and the pollutant treatment cost incurred in the landfill / incineration process can be reduced by enlarging the apparatus of the no battery type.

Further, since the space for changing the magnetic field is considerably small as compared with the conventional one, it is suitable for realizing a small self-power generating device, and the effect of maximizing the variation width of the magnetic field by maximizing the magnetic flux at the time of changing the polarity is achieved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a case where a bar magnet is present in a coil. Fig.
Fig. 2 is a diagram showing an example of current generation at the moment when the NS pole of the bar magnet is changed to the SN pole in Fig. 1; Fig.
Fig. 3 is a diagram showing an example in which a current is generated by changing the polarity of the left and right sides of the magnetic body; Fig.
4 is a view showing an example of a miniature power generation module according to an embodiment of the present invention;
Fig. 5 is a side view showing the polarity when the left side of the first magnetic body is inclined downward in Fig. 4; Fig.
FIG. 6 is a plan view showing the polarity when the left side of the first magnetic body is inclined downward in FIG. 4; FIG.
Fig. 7 is a side view showing the polarity when the left side of the first magnetic body is inclined in Fig. 4; Fig.
FIG. 8 is a plan view showing the polarity when the left side of the first magnetic body is inclined in FIG. 4; FIG.
9 is a view showing an example of a power-free wireless switch module to which the miniature power generation module of FIG. 4 is applied.
Fig. 10 is a view showing an example of the operating range of the first magnetic body in Fig. 4; Fig.
11 is a diagram showing an example of an output voltage of the magnetic field direction switching type power generation module of the present invention.
12 is a diagram showing an example of a polarity conversion method of a magnetic field direction conversion type power generation module according to the present invention;
13 is a view showing a basic structure of a magnetic field direction switching type power generation module of the present invention.
FIG. 14 is an enlarged view of a magnetic field direction switching type power generation module according to the present invention; FIG.
15 is a diagram showing an example of electric energy generation by the magnetic field direction switching type power generation module of the present invention.
FIGS. 16 to 19 are diagrams showing results of analysis of a magnetic flux density distribution (B field) at a stop point of 1.854 ° of the magnetic field direction switching power generation module of the present invention. FIG.
20 to 22 are diagrams showing results of analysis of a magnetic flux density distribution (B field) at the 0-degree point of the magnetic field direction switching power generation module of the present invention.
23 to 25 are diagrams showing results of analysis of a magnetic flux density distribution (B field) at a stop point of -1.854 ° in the magnetic field direction switching type power generation module of the present invention.
26 is a view showing the flow of magnetic flux at a point of 1.854 °;
27 is a view showing the flow of magnetic flux at -1.854 °;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

Conventionally, a magnetic field is changed by making one of a coil and a magnet change by a method of changing a magnetic field with respect to a linear motion. Hereinafter, a mechanism for switching the direction of the magnetic field on the minimum stroke will be described with reference to FIGS. 1 to 3 attached hereto.

FIG. 2 is a diagram showing an example of current generation at the moment when the NS pole of the rod magnet is changed to the SN pole in FIG. 1, and FIG. 3 is a diagram showing an example of a current To generate a current.

The rotary generator is a generator in which the conductor stops and the magnet rotates inside. The rotation of the magnet here means that the direction of the magnetic field around the stationary conductor changes. And the current is generated when the direction of the magnetic field changes. As shown in FIG. 1, it is assumed that the bar magnet 20 exists inside the coil 10. In this structure, current also occurs at the moment when the N-S pole of the bar magnet 20 shown in the left side of FIG. 2 is changed to the S-N pole as shown in the right figure.

3, the magnetic body 30 is placed in the coil 10 instead of the bar magnet, and the NS poles of the magnet 20 are brought into contact with both ends of the magnet 20 as shown in the following figure, 10). If such a principle is used, only the left and right polarities of the magnetic body 30 can be easily changed, so that the structure can be downsized.

Hereinafter, a miniature power generation module to which an energy harvesting mechanism is applied will be described with reference to FIGS. 4 to 9 attached hereto.

4 is a side view showing the polarity when the left side of the first magnetic body is tilted downward in FIG. 4, and FIG. 6 is a cross- FIG. 7 is a side view showing the polarity when the left side of the first magnetic body is inclined upward in FIG. 4, and FIG. 8 is a side view showing the polarity when the left side of the first magnetic body is inclined downward in FIG. FIG. 9 is a view showing an example of a non-power source wireless switch module to which the miniature power generation module in FIG. 4 is applied, FIG. 10 is a view showing an example of a polarity when the left side of the magnetic body is tilted, Fig.

As shown in the figure, a coil 50 is wound around a housing 40, a first magnetic body 60 penetrates the inside of the coil 50, and the first magnetic body 60 is wound around the coil 50 So as to be movable up and down in the housing 40. Preferably, the first magnetic body 60 moves in a seesaw form within an angle of ± 45 degrees in the up-and-down direction with respect to the horizontal plane in the housing 40, and the first magnetic body 60 moves in the up- It takes less than 1 second to move from a maximum of + 45 ° to a minimum of -45 °. Further, another second magnetic body 80 is attached to the upper and lower portions of the magnet 70, one of which has an N pole and the other has an S pole. When the left side of the first magnetic body 60 is tilted downward, the left portion of the first magnetic body 60 is tilted to the left side of the second magnetic body 80 (N pole) of the second magnetic body 80, so that the left side of the first magnetic body 60 is in contact with the lower plate (S pole) S pole and N pole on the right side.

On the contrary, when the left side of the first magnetic body 60 is tilted upwards, the left portion of the first magnetic body 60 comes into contact with the upper plate (N-pole) of the second magnetic body 80, (S-pole) of the first magnetic body 60. As a result, as shown in Figs. 7 and 8, the left side of the first magnetic body 60 has an N-pole and the right side thereof has an S-pole.

That is, as shown in FIG. 9, when a handle 90 is formed on one side of the first magnetic body 60 to apply a vertical motion from the outside, a current is generated in the coil.

The specifications of the magnets used in the configuration of the magnetic field direction switching type power generation module of the present invention are as shown in Table 1 below.

Adsorption force N (kgf) Surface magnetic flux density (G) 8.5 N (0.87 kgf) 3000 to 3200

10, the operating range in which the first magnetic body 60, which serves to change the direction of the magnetic field flowing to the center of the coil 50, moves within the housing 40 is a range in which the second magnetic body 80, Is designed to move a total of 3.7 ° in 1.854 ° increments above and below the horizontal plane when the gap between the upper plate and the lower plate is within 2mm. Actual 3.7 ° operation time is about 25ms. Preferably, the first magnetic body 60 moves in a seesaw form within an angle of ± 45 degrees in the up-and-down direction with respect to the horizontal plane in the housing 40, and the first magnetic body 60 moves in the up- It takes less than 1 second to move from a maximum of + 45 ° to a minimum of -45 °.

11 is a diagram showing an example of the output voltage of the magnetic field direction switching type power generation module of the present invention.

As shown in the figure, the magnets and the plates and the magnets shown in Tables 2 and 3 below were used for the power generation performance test of the magnetic field direction switching power generation module of the present invention.

Plate-S Self-manufactured Plate for square type magnet Plate-L Self made Plate for Ring type magnet

Types of magnets Adsorption force N (kgf) Surface magnetic flux density (G) Ring type (HXCW 10-3-2) 10.8 N (1.1 kgf) 2600-2800 Square (MGLN 10-5-2) 8.5 N (0.87 kgf) 3000 to 3200

As a result, a peak voltage of 5 V was generated when Plate-L and a square magnet were used as shown in FIG.

13 is a diagram showing a basic structure of a magnetic field direction switching power generation module according to the present invention, and FIG. 14 is a diagram showing a basic structure of a magnetic field direction switching power generation module according to the present invention, 15 is a diagram showing an example of electric energy generation by the magnetic field direction switching type power generation module of the present invention.

As shown, the displacement of the first magnetic body 60 in the coil 50 is minimized and the magnetic polarity of the metal is changed. That is, the displacement space of the magnet for the change of the magnetic field in the coil 50 is minimized, thereby miniaturizing the product oriented in the present invention, and maximizing the change of the magnetic field in the coil 50. In addition, by adding the elastic body 62 to the iron core portion 61 as shown in FIG. 14, it is possible to generate the maximum efficiency power with the minimum displacement in a given space.

As shown in Figs. 12 to 15 showing the self-generating method and apparatus mechanism for implementing the electroless wireless switch, the displacement of the first magnetic body 60 in the coil 50 is minimized and the change of the magnetic field in the coil 50 Thereby minimizing the space required for the rotation or linear motion, which is the auxiliary space for changing the magnetic field in the coil 50, thereby contributing to miniaturization of the product. In the expansion structure of FIG. 14, two magnetic field changes are provided in one motion. In Fig. 15, a magnetic force is induced like a closed circuit through a movable plate Ms. The generation voltage generates a maximum of 5V peak, and the current direction changes from (1) to (3) during exercise, and (3) to (1) during exercise.

FIGS. 16 to 19 are diagrams showing results of analysis of a magnetic flux density distribution (B field) at a stop point of 1.854 ° of the magnetic field direction switching power generation module of the present invention, and FIGS. 20 to 22 are graphs FIG. 23 to FIG. 25 are graphs showing the result of analysis on the magnetic flux density distribution (B field) when the switching power generation module passes through the 0 ° point. FIG. FIG. 26 is a view showing the flow of magnetic flux at a point of 1.854 °, and FIG. 27 is a view showing a flow of magnetic flux at a point of -1.854 °.

As shown in the figure, in the magnetic field direction switching type power generation module of the present invention, when the coil is wound on the mover during operation from the point of 1.854 ° → 0 ° → -1.854 °, at the point of 1.854 °, The flow flows from the left side to the right side, and the flow of the magnetic flux flows from the right side to the left side as shown in FIG. 27 at the point of -1.854 DEG, thereby inducing an induced electromotive force.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

40: Housing
50: Coil
60: first magnetic body
70: Magnet
80: second magnetic body

Claims (6)

A self-generating device for implementing a non-powered wireless switch,
housing;
A coil wound around the housing;
A first magnetic body placed through the inside of the coil;
A magnet disposed in an inner space of the first magnetic body; And
And an upper plate having the N pole is attached to an upper side portion of the magnet and a lower magnetic plate having the S pole is attached to a lower side portion of the magnet, In addition,
Wherein the first magnetic body moves in a vertical seesaw shape in the housing to change a direction of a magnetic field flowing to the center of the coil to generate a current flowing in the coil,
Wherein the first magnetic body moves in a seesaw form within an angle of +/- 45 degrees in a vertical direction with respect to a horizontal plane in the housing and the first magnetic body moves in a vertical direction at a maximum of + , Which takes less than 1 second to move.
delete delete The method according to claim 1,
When the upper surface of the second magnetic body is N pole and the lower magnetic pole is S pole, when the left side of the first magnetic body is inclined downward, the left portion of the first magnetic body is in contact with the lower plate having S pole of the second magnetic body, And the right portion of the first magnetic body comes into contact with the top plate having the N pole of the second magnetic body and becomes N pole
Wherein the power supply is connected to the power supply.
The method according to claim 1,
When the upper surface of the second magnetic body is N pole and the lower plate is S pole, when the left side of the first magnetic body is tilted upward, the left portion of the first magnetic body contacts the upper plate having the N pole of the second magnetic body, And the right portion of the first magnetic body comes into contact with the lower plate having the S-pole of the second magnetic body,
Wherein the power supply is connected to the power supply.
The method according to claim 1,
An elastic body is provided on an inner iron core of the first magnetic body moving in a vertical seesaw shape in the housing to maximize a change in the magnetic field in the coil
Wherein the power supply is connected to the power supply.

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