KR101514923B1 - Apparatus for turning page - Google Patents

Abstract

The page switching apparatus according to one embodiment includes a pedal, a power generating unit provided in the pedal for generating electricity when an external force is applied to the pedal, an operating unit for receiving electricity from the power generating unit, And a display unit to which pages are switched.

Description

{APPARATUS FOR TURNING PAGE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a page switching apparatus, and more particularly, to a page switching apparatus capable of generating electricity when an external force is applied to a pedal and switching pages displayed on the display unit by generated electricity.

Recently, energy depletion has become a serious problem in the world, and research on alternative energy is actively being carried out. Currently, most of the energy is obtained from thermal power, hydro power, wind power, fossil fuel, and nuclear power, and solar energy, bio energy and renewable energy are attracting attention as alternative energy.

However, each energy is not environmentally friendly, and many pollutants are emitted, environmental problems are serious, and resource depletion has a practical life span of decades.

In addition, nuclear power and solar energy, which have no environmental problems, are currently attracting attention, but their own facility costs and technology development problems remain.

Therefore, various power generation devices have been studied.

For example, a prior art document KR10-2009-0060343, filed on July 2, 2009, discloses a self-powered LED safety light pedal for a bicycle using a stacked piezoelectric actuator.

And, the prior art document KR10-2010-0091206 filed on September 16, 2010 discloses an energy harvesting electronic device.

An object of an embodiment is to provide a page switching device capable of easily generating electric power by providing a power generation portion on a pedal and allowing an operation portion to switch pages of a display portion using generated electricity.

An object according to an embodiment is to provide a page switching device capable of supplying electric power from a power generation section to an operation section by wire or radio, and the operation section can transmit a page switch signal to a display section.

An object according to an embodiment is to provide a page switching device in which electricity generated in a power generation portion is transmitted to a pedal so that the pedal can generate an acoustic control signal.

An object according to an embodiment is to provide a page switching device which includes a power generating portion on an operating portion and can easily generate self-power by applying an external force to the operating portion.

An object of an embodiment is to provide a page switching device capable of wirelessly controlling a laptop, a tablet PC, an application of a smart phone, and a page on various apps.

An object according to an embodiment is to provide a page switching device that can utilize electricity generated in various ways such as electromagnetic induction, piezoelectric or electrostatic induction.

According to another aspect of the present invention, there is provided a page switching apparatus comprising: a pedal; a power generating unit provided in the pedal for generating electricity when an external force is applied to the pedal; And a display unit for switching pages according to a page switching signal from the operation unit.

According to one aspect of the present invention, the pedal includes an upper surface to which an external force is applied, a lower surface spaced apart from the upper surface, and an elastic element mounted between the upper surface and the lower surface. When an external force is applied to the pedal, .

According to one aspect of the present invention, the power generation section includes a first magnet mounted on the upper surface to face the lower surface, a second magnet mounted on the lower surface so as to face the upper surface, and a second magnet mounted on the first magnet or the second magnet in a protruding manner And a coil disposed between the first magnet and the second magnet, and electricity can be generated in the coil by moving the third magnet in and out of the coil.

According to one aspect of the present invention, the power generation unit further includes a piezoelectric element provided in a portion that can be pressed by an external force applied to the pedal, and electricity can be generated by deformation of the piezoelectric element.

According to one aspect, the power generation section includes a piezoelectric body mounted on the upper surface or the lower surface, and electricity can be generated by the deformation of the piezoelectric body.

According to one aspect of the present invention, the power generation portion includes a first charging element mounted on the upper surface to face the lower surface, and a second charging element mounted on the lower surface so as to face the upper surface, wherein the first charging element and the second charging element Electricity can be generated by proximity or friction of the elements.

According to one aspect of the present invention, the electricity generated in the power generation portion is transmitted to the pedal, and the pedal can generate a sound control signal.

According to one aspect of the present invention, the power generation unit may further include a storage unit for storing electricity generated by the power generation unit.

According to another aspect of the present invention, there is provided a page switching apparatus including a display unit displaying a page, an operation unit transmitting a page switching signal to the display unit so as to switch the page, And the operating portion can be self-generated.

According to one aspect of the present invention, electricity can be generated in the power generation unit by an external force applied to the operation unit, and the page switching signal can be transmitted wirelessly.

According to one aspect of the present invention, the operation unit can control the direction in which pages of the display unit are switched.

According to the page switching apparatus of the embodiment, the power generation unit is provided in the pedal, so that electricity can be easily generated, and the operation unit can switch pages of the display unit using the generated electricity.

According to the page switching apparatus of the embodiment, electric power is supplied from the power generation section to the operation section by wire or wireless, and the operation section can transmit the page switch signal to the display section.

According to the page switching device of the embodiment, the electricity generated in the power generation portion is transmitted to the pedal, and the pedal can generate the sound control signal.

According to the page switching apparatus of one embodiment, the power generating section is provided on the operating section, and the operating section can easily generate power by applying an external force to the operating section.

According to the page switching apparatus of one embodiment, it is possible to wirelessly control a laptop, a tablet PC, a smart phone, and a page on various apps.

According to the page switching apparatus according to one embodiment, electricity generated in various manners such as electromagnetic induction, piezoelectric or electrostatic induction can be used.

1 shows a configuration of a page switching device according to an embodiment.
Fig. 2 shows an operation unit in the page switching device according to one embodiment.
FIG. 3 shows a page switching apparatus according to an embodiment in which a pedal is provided separately from a musical instrument.
4 shows a case where the operation unit and the power generation unit are combined in the page switching apparatus according to the embodiment.
5 (a) and 5 (b) illustrate an electromagnetic induction generator in a page switching device according to an embodiment.
6 (a) and 6 (b) illustrate an electromagnetic induction and piezoelectric generation section in a page switching apparatus according to an embodiment.
7 shows a piezoelectric power generating unit in the page switching apparatus according to one embodiment.
FIG. 8 shows a static electricity induction type power generation unit in the page switching apparatus according to an embodiment.

Hereinafter, configurations and applications according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION The following description is one of many aspects of the claimed invention and the following description forms part of a detailed description of the present invention.

In the following description, well-known functions or constructions are not described in detail for the sake of clarity and conciseness.

Fig. 1 shows a configuration of a page switching apparatus according to an embodiment, and Fig. 2 shows an operating section in a page switching apparatus according to an embodiment.

1, a page switching device 10 according to an embodiment may include a pedal 100, a power generator 200, an operation unit 300, a display unit 400, and a storage unit 500 .

The pedal 100 may be provided in a musical instrument and the power generation unit 200 may be provided in the pedal 100 to generate electricity when an external force is applied to the pedal 100, The display unit 400 may be turned on by the page switching signal from the operation unit 300 and the storage unit 500 may be powered by the electricity generated by the power generation unit 200, Can be stored.

The page switching device 10 according to this embodiment configured as described above can be operated as follows.

First, the pedal 100 is provided on the piano A, and the pedal 100 can be depressed when the piano A is playing. In this manner, an external force can be applied to the pedal 100.

Electricity may then be generated by the external force applied to the pedal 100 in the power generation unit 200 provided in the pedal 100.

The electricity generated in the power generation unit 200 may be supplied to the operation unit 300 by wire or wirelessly.

Thereby, the electricity generated in the power generation section 200 can operate the operation section 300.

Referring to FIG. 2, the operation unit 300 may be provided as a page turner.

For example, the operation unit 300 includes a first operation element 310 for switching the page of the display unit 400 to the left side, a second operation element 320 for switching the page of the display unit 400 to the right side, A power supply source 330 and a supporting element 340 for supporting the first operating element 310, the second operating element 320, and the power source 330.

The first operating element 310 and the second operating element 320 may be provided in the form of a pedal so that the first operating element 310 and the second operating element 320 can be pushed.

2, the operation unit 300 includes a plurality of operation elements 310 and 320 to control the direction of page switching. However, the direction of page switching can be controlled by one operation element 310 and 320 Of course.

In addition, when electricity is supplied from the power generator 200 to the operation unit 300 wirelessly, a separate power source 330 may not be required. Accordingly, the supporting element 340 can be provided to support the first operating element 310 and the second operating element 320. [

The page switching signal can be transmitted to the display unit 400 by the operation of the operation unit 300 described above.

At this time, the display unit 400 may include a laptop, a tablet PC, a smart phone, or the like, and may display any page as long as it can display a page.

For example, a score can be displayed through the display unit 400, and the score can be turned to the left and right by the operation of the operation unit 300. Specifically, when the first operation element 310 is pressed, the score can be turned to the left, and when the second operation element 320 is pressed, the score can be turned to the right. Thereby, it is possible to easily pass the musical score during musical instrument performance or performance.

However, what is displayed on the display unit 400 is not limited to a score, and may include a laptop, a tablet PC, or an application on a smart phone and a page on various apps.

Further, the electricity generated by the power generation unit 200 may be stored in the storage unit 500.

The storage unit 500 may be connected to the power generation unit 200 and may store electricity in the storage unit 500 when necessary. Alternatively, the electricity generated in the power generation unit 200 may be used to operate the operation unit 300 immediately, without storing the electricity in the storage unit 500.

The page switching device 10 according to the embodiment supplies electricity to the operation unit 300 by the operation of the pedal 100 provided on the musical instrument and supplies the electricity to the display unit 400 by the operation of the operation unit 300 The displayed page can be switched.

FIG. 3 shows a page switching apparatus according to an embodiment in which a pedal is provided separately from a musical instrument.

Referring to FIG. 3, the pedal 100 may be provided separately from the electronic piano B.

The pedal 100 may send an acoustic control signal to the electronic piano B. [

The pedal may function as a damper pedal.

For example, when the pedal 100 is depressed, the sound length can be adjusted by the pedal 100, such that the sound can be sustained and the volume can be increased.

At this time, the pedal 100 can send an acoustic control signal to the electronic piano B using the electricity generated in the power generator 200.

Concretely, whether the pedal 100 is pressed (PUSH ON) or the pedal 100 is not pushed (PUSH OFF) can be transmitted to the electronic piano B as a radio acoustic control signal.

Although not shown in the drawing, the pedal 100 and the electronic piano B may be equipped with a transmitter or a receiver.

Electricity is generated in the power generation unit 200 by the depression of the pedal 100 and electricity generated in the power generation unit 200 is supplied to the operation unit 300 in a wired or wireless manner, A configuration in which electricity generated by the power generation unit 200 can be stored in the storage unit 500 is similar to that shown in Fig.

However, the page switching device 10 according to the embodiment shown in FIG. 3 is different from the page switching device 10 shown in FIG. 1 in that the electric power generated from the power generator 200 is additionally used to generate the acoustic control signal by the pedal 100, Which is different from the page switching device 10 according to the embodiment shown in FIG.

In this way, even when the pedal 100 is provided separately from the musical instrument, electricity can be generated in the power generation unit 200 by pressing the pedal 100, and electricity generated in the power generation unit 200 can be supplied to the operation unit 300) to switch pages displayed on the display unit (400). In addition, the electricity generated in the power generation section 200 can be used by the pedal 100 to send a radio acoustic control signal to the musical instrument, for example, the electronic piano B.

4 shows a case where the operation unit and the power generation unit are combined in the page switching apparatus according to the embodiment.

Referring to FIG. 4, the operation unit 300 and the power generation unit 200 may be combined.

This is because electricity is not generated in the power generation unit 200 due to the depression of the pedal 100 as shown in FIG. 1 or 3 but the operation unit 300 is coupled to the power generation unit 200, There is a difference in that electricity is generated in the power generator 200 by the operation of the power generator 200. [

Specifically, the power generating unit 200 may be mounted on the first operating element 310 and the second operating element 320 in the operating unit 300 shown in FIG.

For example, the power generating unit 200 may be mounted on the first operating element 310 and the second operating element 320, or the power generating unit 200 may be mounted on the first operating element 310 and the second operating element 320, (200) can be mounted.

Thereby, electricity can be generated in the power generator 200 simultaneously with the first operation element 310 or the second operation element 320 being pressed.

Thus, the electricity generated in the power generation unit 200 can send a wireless page switching signal to the display unit 400.

The wireless page switch signal transmitted to the display unit 400 by the operation unit 300 can switch the page displayed on the display unit 400 to the left or right side.

This allows the operation unit 300 to be self-generated, and even when the pedal 100 is not provided, electricity can be generated only by the operation of the operation unit 300.

For example, when a guitar player who does not need to press the pedal when playing the instrument plays the guitar while watching the score displayed on the display unit 400, the guitar player presses the operation unit 300 to generate electricity, The music score displayed on the display unit 400 can be turned over.

In addition, the storage unit 500 is connected to the power generation unit 200, so that the electricity generated in the power generation unit 200 can be stored in the storage unit 500.

As described above, the page switching device according to the embodiment can generate electricity easily by providing the power generation portion on the pedal, and the operation portion can switch pages of the display portion using the generated electricity, Electricity is supplied wirelessly, and the operation unit can transmit a page switching signal to the display unit. In addition, when the pedal is provided separately from the musical instrument, it is possible to transmit a wireless acoustic control signal from the pedal to the musical instrument using the electricity generated from the power generation section. Further, the power generating unit is provided on the operation unit, and an external force is applied to the operation unit, so that the operation unit can easily generate self-power and can wirelessly control a laptop, a tablet PC, .

Hereinafter, the overall configuration and operation of the page switching device according to one embodiment will be described. Hereinafter, the specific structure of the power generating part and the process of generating electricity in the power generating part in the page switching device according to the embodiment will be described .

5 (a) and 5 (b) illustrate an electromagnetic induction generator in a page switching device according to an embodiment.

The power generation units 210 and 220 can generate electricity by an external force F applied to the pedal 100. The detailed structure of the pedal 100 will be described below.

The pedal 100 may be provided on a musical instrument such as a piano.

For example, the player can step on the pedal 100 when playing the piano.

However, it is natural that the pedal 100 can be provided to an object other than the musical instrument.

In particular, the pedal 100 may include an upper surface 102, a lower surface 104 and an elastic element 106.

An external force F may be applied to the upper surface 102.

For example, the player can step on the upper surface 102 of the pedal 100 and the direction of the external force F can be in the vertical direction from the upper surface 102 toward the lower surface 104. [

The lower surface 104 may be spaced apart from the upper surface 102.

For example, the lower surface 104 may be positioned opposite to the upper surface 102 in the pedal 100, so that the player may not directly apply the external force F to the lower surface 104.

In addition, the elastic element 106 may be disposed between the upper surface 102 and the lower surface 104.

Although the elastic element 106 is shown as a spring in the drawing, the elastic element 106 is not limited to this, and any elastic element 106 can be used as long as it is elastically deformable by an external force F.

Specifically, when an external force F is applied to the upper surface 102, a compressive force is applied to the elastic element 106 to deform the elastic element 106, and the gap between the upper surface 102 and the lower surface 104 may be narrowed have.

On the other hand, when the external force F is removed from the upper surface 102, the compressive force applied to the elastic element 106 is removed so that the deformed elastic element 106 returns to its original state, Can also be returned to the original state.

The pedal 100 thus configured is deformed by the external force F, and can be returned to its original state when the external force F is removed.

The pedal 100 may be provided with power generators 210 and 220.

The power generation units 210 and 220 can generate electricity through an electromagnetic induction method by the external force F applied to the pedal 100.

The electromagnetic induction method refers to generating electricity in the coil by changing the magnetic flux passing through the coil.

For example, when a magnet is moved close to and away from a coil, a change in the magnetic flux line passing through the coil can cause electricity to be generated in the coil. In other words, a current flows through the coil, and the direction of the current becomes a direction in which the magnetic line of force generated by the current interferes with the change of the original magnetic line of force. Therefore, the direction of the current is opposite when the magnet is close to and away from the coil.

In this case, the intensity of the current may be proportional to the number of turns of the coil and the change of the magnetic field lines. For example, the number of turns of the coil is large, and the magnitude of the current can be increased as the magnetic line of force or the speed at which the magnet is moved increases.

Or, the same thing can be done by moving the coil with the magnet left. The induction current can be generated without the movement of the magnet or the coil. When two coils are adjacent to each other, a switch is put on one coil, and when this switch is opened and closed, an induction current flows in the other coil, so that the needle of the galvanometer system moves. The phenomenon that the electromotive force is generated in the conductor by the change of the magnetic field is called the electromagnetic induction.

5 (a), the power generation section 210 includes a first magnet 2122, a second magnet 2142, a third magnet 216, and a coil 218 .

The first magnet 2122 and the second magnet 2142 may be formed of, for example, permanent magnets, and may be fixed to the upper surface 102 and the lower surface 104, respectively.

The first magnet 2122 may be mounted on the upper surface 102 to face the lower surface 104.

At this time, a first support 2124 is mounted on the upper surface 102, and a first magnet 2122 can be mounted on the first support 2124.

The first support 2124 can reduce the space between the first magnet 2122 and the second magnet 2142 and can play a role of reliably mounting the first magnet 2122.

Specifically, the first bearing 2124 is made of a material different from that of the first magnet 2122 and is bonded by adhesion, or the first bearing 2124 is also made of a material having magnetism, so that the first bearing 2124, (2122) can be coupled by an electric force such as a pulling force.

However, when the first magnet 2122 is directly mounted on the upper surface 102, the first pedestal 2124 may not be needed. At this time, the size of the first magnet 2122 may be larger than that of the first magnet 2124.

Also, the second magnet 2142 may be mounted on the lower surface 104 so as to face the upper surface 102.

At this time, a second bearing 2144 is mounted on the lower surface 104, and a second magnet 2142 can be mounted on the second bearing 2144.

The second support 2144 can reduce the space between the first magnet 2122 and the second magnet 2142 and can function to securely mount the second magnet 2142. [

A detailed description of the second support 2144 is similar to that of the first support 2124 described above, and thus a detailed description thereof will be omitted.

Also, the third magnet 216 may be mounted so as to protrude from the first magnet 2122 or the second magnet 2142.

The third magnet 216 may be provided as a permanent magnet in the same manner as the first magnet 2122 or the second magnet 2142.

However, the third magnet 216 differs from the first magnet 2122 and the second magnet 2142 in that the third magnet 216 is penetrable in the coil 218 to be described later.

Accordingly, the third magnet 216 may have a predetermined length so as to change a magnetic line of force passing through the coil 218.

For example, the length of the third magnet 216 is located in the coil 218 when the external force F is applied to the pedal 100. When the external force F is removed from the pedal 100, It can be arranged to escape from within.

Specifically, when the upper end of the coil 218 is fixed to the first magnet 2122, a portion of the third magnet 216 is located in the coil 218, and the lower end of the coil 218 and the lower end of the second magnet 2142 May be spaced apart.

The third magnet 216 may be formed in a cylindrical shape or a cylindrical shape having a tube at its center and the third magnet 216 may penetrate the coil 218 to generate electricity to the coil 218 The third magnet 216 can be formed in any shape.

Although the third magnet 216 is shown protruding from the second magnet 2142, it is obvious that the third magnet 216 can be mounted to the first magnet 2122 in a protruding manner. At this time, the coil 218 may be mounted on the second magnet 2142.

Specifically, the third magnet 216 and the second magnet 2142 may be mounted by gravity with different polarities.

For example, if the second magnet 2142 facing the third magnet 216 is an N pole, one side of the third magnet 216 facing the second magnet 2142 becomes the S pole, and the third magnet 216 ) May be an N-pole. Furthermore, one side of the first magnet 2122 facing the other side of the third magnet 216 may be an N pole.

Further, as described above, the coil 218 may be located outside the third magnet 216. [

The coil 218 may be disposed between the first magnet 2122 and the second magnet 2142 and may be disposed in a fixed or non-fixed position within the first magnet 2122 and the second magnet 2142 .

For example, the coil 218 may be fixed to the first magnet 2122 or the second magnet 2142, and when the coil 218 is fixed to the first magnet 2122, the third magnet 216 Is mounted on the second magnet 2142 and the coil 218 is fixed to the second magnet 2142, the third magnet 216 can be mounted on the first magnet 2122. [

The coil 218 may have a predetermined length in the relation of the third magnet 216 described above.

Specifically, when the upper end of the coil 218 is fixed to the first magnet 2122, the lower end of the coil 218 is positioned at the center or the upper side of the third magnet 216, 2 magnet 2142. The magnet 2142 may be a magnet.

Therefore, when the external force F is applied to the pedal 100, the third magnet 216 is positioned in the coil 218, so that the lower end of the coil 218 can come into contact with the second magnet 2142.

On the other hand, when the external force F is removed from the pedal 100, the power generator 200 may return to its original state. That is, the third magnet 216 is released in the coil 218, and the lower end of the coil 218 can be disposed apart from the second magnet 2142.

Specifically, electricity may be generated in the coil 218 as follows.

When an external force F is applied to the upper surface 102 of the pedal 100, a compressive force is applied to the elastic element 106 so that the elastic element 106 is deformed and the upper surface 102 is deformed toward the lower surface 104 have.

The distance between the upper surface 102 and the lower surface 104 becomes narrow and the coil 218 fixed to the first magnet 2122 also moves toward the lower surface 104, Lt; RTI ID = 0.0 > 216 < / RTI >

On the other hand, when the external force F is removed from the upper surface 102 of the pedal 100, the compressive force is removed from the elastic element 106 to return the elastic element 106 to its original state and the upper surface 102 to return to its original state have.

The gap between the upper surface 102 and the lower surface 104 is returned to the original state and the coil 218 fixed to the first magnet 2122 is further moved away from the lower surface 104 and the third magnet 216 And may gradually escape from the coil 218.

The third magnet 216 is moved up and down in the coil 218 by repeating the process of applying and removing the external force F to the pedal 100. The change in the magnetic force line passing through the coil 218 And electricity can be generated in the coil 218. [ At this time, as the external force F is hardly or rapidly applied to the pedal 100, more electricity may be generated in the coil 218.

5 (b), the power generation unit 220 may include a fixed magnet 222 and a coil 224. [

For example, the stationary magnet 222 may be mounted to the lower surface 104 and the coil 224 may be mounted to the upper surface 102. Or the stationary magnet 222 may be mounted on the upper surface 102 and the coil 224 may be mounted on the lower surface 104.

At this time, the stationary magnet 222 may be provided such that a part of the stationary magnet 222 is located in the coil 224. [

When the external force is applied to the upper surface 102 of the pedal 100 by the arrangement of the stationary magnet 222 and the coil 224, the stationary magnet 222 ascends and descends within the coil 224, Electricity may be generated in the coil 224.

The process of generating electricity in the coil 224 by the electromagnetic induction method has been described in detail above, and a further explanation will be omitted.

In this way, electricity can be relatively easily obtained by generating electricity using the electromagnetic induction method in the power generating units 210 and 220, and the cost of the power generating units 210 and 220 can be reduced.

6 (a) and 6 (b) show the electromagnetic induction and piezoelectric type power generation units 230 and 240 in the page switching apparatus according to one embodiment.

6A and 6B, the page switching device 10 according to the embodiment is configured such that the configuration of the power generation units 210 and 220 shown in FIGS. (P1, P2) may be further provided.

The piezoelectric elements P1 and P2 may act to generate electricity while being deformed by an external force. Basically, a ceramic piezoelectric element having excellent power generation, a polymer having excellent physical flexibility, a polymer and a ceramic Mixed hybrid piezoelectric elements can be used. Therefore, it has durability due to excellent physical flexibility and is thus easy to generate.

In addition, as the types of the piezoelectric elements P1 and P2, the use of PVDF is basic and may include barium titanate, PZT crystal, or PZT fiber. In addition, lead-free piezoelectric materials such as NKN type, BZT-BCT type, BNT type, BSNN and BNBN type, PLZT, P (VDF-TrFE), quartz, tourmaline, rochelite, barium titanate, Ammonium, tartaric acid ethylenediamine, and the like.

However, the types and materials of the piezoelectric elements P1 and P2 are not limited thereto, and other materials may be used as long as sufficient electricity can be generated by the external force applied to the page switching device 10 according to the embodiment Of course.

The piezoelectric elements P1 and P2 are connected to a rectifying part (not shown) by a conductor (not shown), so that electricity generated by the deformation of the piezoelectric elements P1 and P2 is fed to the rectifying part along the conductor, .

The piezoelectric elements P1 and P2 may be provided at a portion where the pedal 100 can be pressed when receiving an external force.

6A, the piezoelectric element P1 may be provided between the coil 238 and the first magnet 2322. Specifically, the piezoelectric element P1 may be provided between the coil 238 and the first magnet 2322, 3 magnet 236 and deformed.

Alternatively, the piezoelectric element P1 may be provided at the upper end or the lower end of the coil 238. Specifically, when the piezoelectric element P1 is provided at the upper end of the coil 238, When the piezoelectric element P1 is provided at the lower end of the coil 238, the piezoelectric element P1 is pressed by the second magnet 2342 through the second magnet 2342, And can be deformed.

Alternatively, the piezoelectric element P1 may be provided in the first magnet 2322 or the second magnet 2342. Specifically, when the piezoelectric element P1 is provided in the first magnet 2322, P1 is pressed and deformed by the coil 238 or the third magnet 236 and when the piezoelectric element P1 is provided in the second magnet 2342, And can be deformed.

In this way, when the external force F is applied to the pedal 100, pressure is applied to the piezoelectric element P1, so that the piezoelectric element P1 is deformed and electricity can be generated.

In other words, electricity can be generated not only by the electromagnetic induction but also by the piezoelectric method through the power generator 230 shown in FIG. 6 (a).

Specifically, when an external force F is applied to the upper surface 102 of the pedal 100, a compressive force is applied to the elastic element 106 so that the elastic element 106 is deformed and the upper surface 102 contacts the lower surface 104 Lt; / RTI >

The distance between the upper surface 102 and the lower surface 104 is narrowed so that the coil 238 fixed to the first magnet 2322 also moves toward the lower surface 104 and the third magnet Lt; RTI ID = 0.0 > 236 < / RTI >

The upper surface 102 and the lower surface 104 are brought as close to each other as possible by the compression of the elastic element 106 so that the third magnet 236 located in the coil 238 is eventually pressed against the first magnet 2322 . At this time, the piezoelectric element P1 mounted on the top of the first magnet 2322 or the coil 238 can be deformed.

On the other hand, when the external force F is removed from the upper surface 102 of the pedal 100, the compressive force is removed from the elastic element 106 to return the elastic element 106 to its original state and the upper surface 102 to return to its original state have.

The gap between the upper surface 102 and the lower surface 104 is returned to the original state and the coil 238 fixed to the first magnet 2322 is further moved away from the lower surface 104 and the third magnet 236 And may gradually escape from the coil 238.

Furthermore, the piezoelectric element P1 deformed by an external force can also be returned to its original state.

6 (b), the piezoelectric element P2 can be positioned between the upper surface 102 and the coil 244. [

At this time, the coil 244 is mounted on the upper surface 102, and the stationary magnet 242 can be mounted on the lower surface 104.

When the external force is applied to the upper surface 102 of the pedal 100 by the arrangement of the piezoelectric element P2, the fixed magnet 242 ascends and descends within the coil 244, As electricity is generated, at the same time, the fixed magnet 242 presses the piezoelectric element P2 so that electricity can be generated in the piezoelectric element P2.

As described above, in the power generators 230 and 240, electricity can be generated not only by the electromagnetic induction method but also by the piezoelectric type. Therefore, when electromagnetic induction and piezoelectric methods are used together, it can be advantageous in that a large electricity can be obtained with relatively small external force.

7 shows a piezoelectric power generating unit in the page switching apparatus according to one embodiment.

The power generation unit 250 shown in FIG. 7 differs from the power generation units 210, 220, 230, and 240 described above in that the power generation unit 250 generates electricity only by a piezoelectric method without using an electromagnetic induction method.

The power generation unit 250 may include a piezoelectric body 252.

The piezoelectric body 252 may be deformed when an external force is applied to the pedal 100 to generate electricity as in the piezoelectric elements P1 and P2 described above.

The piezoelectric body 252 may be made of the same or similar material as the piezoelectric elements P1 and P2 described above.

Further, the piezoelectric body 252 may be provided in a bulk shape.

For example, the length of the piezoelectric body 252 may be set such that the upper surface 102 of the pedal 100 contacts the lower surface 104 when an external force is applied to the pedal 100.

To this end, the pedestal 254 may be further disposed on the piezoelectric body 252. [ The pedestal 254 is disposed between the piezoelectric body 252 and the lower surface 104 so that the piezoelectric body 252 can be deformed by the external force F applied to the pedal 100. [

Electricity can be generated by the piezoelectric method through the power generation unit 250 provided with the piezoelectric body 252 as follows.

Specifically, when an external force F is applied to the upper surface 102 of the pedal 100, a compressive force is applied to the elastic element 106 so that the elastic element 106 is deformed and the upper surface 102 contacts the lower surface 104 Lt; / RTI >

As a result, the distance between the upper surface 102 and the lower surface 104 becomes narrower, and the upper surface 102 contacts the piezoelectric body 252, and the piezoelectric body 252 can be deformed.

On the other hand, when the external force F is removed from the upper surface 102 of the pedal 100, the compressive force is removed from the elastic element 106 to return the elastic element 106 to its original state and the upper surface 102 to return to its original state have.

As a result, the gap between the upper surface 102 and the lower surface 104 is returned to the original state, the upper surface 102 moves away from the piezoelectric body 252, and the piezoelectric body 252 deformed by the external force F returns to the original state .

As described above, electricity can be generated in the power generation section 250 by the piezoelectric type. Electricity can be easily generated with a relatively simple structure.

FIG. 8 shows a static electricity induction type power generation unit in the page switching apparatus according to an embodiment.

Referring to FIG. 8, the power generation unit 260 can generate electricity by the electrostatic induction method.

Electrostatic induction refers to a phenomenon in which the charge of the opposite kind and the charge of the opposite type are collected at the near side of the object, and the charge of the same kind as that of the large object is collected at the far side of the object. At this time, even if the object does not necessarily contact with the entire body, static electricity can be sufficiently induced by proximity of the whole body.

Furthermore, when two objects are in contact and rubbing, the two objects can be charged by friction. That is, triboelectricity, which is a kind of static electricity, can occur in two objects.

In this way, electrostatic induction is a phenomenon in which electrons are moved or rearranged by an external mass in an object, and triboelectricity is a phenomenon in which electrons move between two objects to attract electrons.

The power generation unit 260 can generate electricity by using the electrostatic induction (or triboelectric) method.

The power generating unit 260 includes a first charging element 262 mounted on the upper surface 102 to face the lower surface 104 and a second charging element 264 mounted on the lower surface 104 to face the upper surface 102. [ . ≪ / RTI >

The first charging element 262 may be formed of a material that is easily charged with a positive polarity and may be formed of a material such as aluminum, paper, wool, silk, iron, wood, rubber, nickel, brass, Polyformaldehyde, and the like.

The second charging element 264 may be made of a material that is easily charged with a negative polarity, for example, polystyrene, polyethylene, polypropylene, polyimide, PVC, polydimethylsiloxane (PDMS) , Polytetrafluoroethylene (Teflon), and the like.

It goes without saying that the first charging element 262 may be mounted on the lower surface 104 and the second charging element 264 may be mounted on the upper surface 102. [

The first charging element 262 and the second charging element 264 may be provided to close or rub against each other when an external force is applied to the pedal 100. [

For example, when the first charging element 262 and the second charging element 264 are rubbed, triboelectricity may occur due to friction between the first charging element 262 and the second charging element 264.

Although not specifically shown, the electric power generated by the first charging element 262 and the second charging element 264 is supplied to the first charging element 262 and the second charging element 264, Not shown) or the storage unit 500 described above.

Electricity can be generated by the electrostatic induction method through the power generation unit 260 provided with the first charging element 262 and the second charging element 264 as follows.

Specifically, when an external force F is applied to the upper surface 102 of the pedal 100, a compressive force is applied to the elastic element 106 so that the elastic element 106 is deformed and the upper surface 102 contacts the lower surface 104 Lt; / RTI >

This narrows the gap between the upper surface 102 and the lower surface 104 so that the first charging element 262 provided on the upper surface 102 can be brought close to the second charging element 264. [ Furthermore, the first charging element 262 and the second charging element 264 can rub against each other.

When the first charging element 262 is made of aluminum and the second charging element 264 is made of polystyrene, the first charging element 262 is positively charged and the second charging element 264 is positively charged. Can be charged to-pole.

Thereby, electricity is generated, and the generated electricity can be stored in the capacitor or storage unit 500.

As described above, electricity can be generated in the electricity generating section 260 by the electrostatic induction method. Electricity can be easily generated with a relatively simple structure.

Therefore, the page switching device according to one embodiment includes a power generation unit using various methods such as electromagnetic induction, piezoelectric or electrostatic induction, and can utilize electricity generated in various ways.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: Page switching device
100: Pedal
102: upper surface
104: when
106: Elastic element
200, 210, 220, 230, 240, 250, 260:
2122, 2322: first magnet
2124, 2324: First base
2142, 2342: Second magnet
2144, 2344: Second base
216, 236: third magnet
218: 238: Coil
222, 242: fixed magnet
224, 244: coil
P1, P2: piezoelectric element
252:
254: Pedestal
262: first charge element
264: Second Charged Element
300:
310: first operating element
320: Second operating element
330: Power source
340: Support element
400:
500:

Claims (11)

pedal;
A power generating unit provided in the pedal and generating electricity when an external force is applied to the pedal;
An operating unit for receiving electricity from the power generating unit; And
A display unit for switching a page by a page switching signal from the operation unit;
Lt; / RTI >
The power generation unit includes:
A first magnet mounted on an upper surface of the pedal so as to face the lower surface of the pedal;
A second magnet mounted on the lower surface of the pedal so as to face the upper surface of the pedal;
A third magnet protruding from the first magnet or the second magnet; And
A coil disposed between the first magnet and the second magnet;
/ RTI >
And electricity is generated in the coil by the upward and downward movement of the third magnet in the coil.
The method according to claim 1,
The pedal,
An upper surface to which an external force is applied;
A lower surface spaced from the upper surface; And
An elastic element mounted between the upper surface and the lower surface;
Lt; / RTI >
And the elastic element is deformed when an external force is applied to the pedal.
delete The method according to claim 1,
The power generation unit includes:
A piezoelectric element provided at a portion that can be pressed by an external force applied to the pedal;
Further comprising:
And electricity is generated by deformation of the piezoelectric element.
delete delete The method according to claim 1,
Wherein the electricity generated by the power generation portion is transmitted to the pedal, and the pedal is capable of generating a sound control signal.
The method according to claim 1,
And a storage unit for storing electricity generated by the power generation unit.
A display unit displaying a page;
An operation unit for transmitting a page switching signal to the display unit so as to switch the page; And
A power generating unit provided in the operating unit and supplying electricity to the operating unit;
Lt; / RTI >
Wherein the operating portion is self-
The power generation unit includes:
A coil provided on any one of an upper surface and a lower surface of the operation portion; And
A magnet provided on the other of the upper surface and the lower surface of the operating portion;
/ RTI >
And the magnet can move up and down within the coil by an external force applied to the operating portion.
10. The method of claim 9,
Wherein electricity is generated in the power generation unit by an external force applied to the operation unit, and the page switching signal can be transmitted wirelessly.
10. The method of claim 9,
Wherein the operation unit is capable of controlling a direction in which pages of the display unit are switched.

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