KR101507854B1 - Energy Harvesting Amplifying Module and Amplifying Module Unit thereof - Google Patents

Abstract

The energy harvesting vibration module of the present invention is arranged such that the opposite side of the free end receiving the external force in the longitudinally spaced state of the piezoelectric element 20 provided on the seating bed 10 is connected to one end of the seating bed 10 A joint 40 acting as a center of the leverage of the lever 30 and a lever 40 connected to the joint 40 to receive a load applied to amplify the external force, 20, it is possible to realize infinite expandability by superimposing the principle of the lever principle with high efficiency as compared with the piezoelectric element stroke amplification method. Particularly, in the miniaturization using the lever principle, As shown in Fig.

Description

[0001] The present invention relates to an energy harvesting module and an energy harvesting module,

The present invention relates to an energy harvesting method and, more particularly, to an energy harvesting module which amplifies the pressure itself by several tens of times, thereby achieving high efficiency compared with a piezoelectric element stroke amplification method, To a harvesting force module unit.

Generally, energy harvesting refers to a method of acquiring energy from wind, waves, sunlight, temperature change, vibration, or pressure. In particular, a piezoelectric field that converts kinetic energy such as vibration or pressure into electric energy Is becoming more and more usable.

In order to realize energy harvesting as described above, development of a harvesting device capable of converting to a necessary type of energy and a power mechanism capable of amplifying a small force to a harvesting device by amplifying it with a very large force First, it must be preceded.

As an example of such a technique, a mechanism for amplifying a stroke generated from a piezoelectric element is exemplified. In this case, a maximum of about 10 times of stroke amplification is realized by expanding one side in response to the pressure of the piezoelectric element and contracting the other side .

Korean Patent Publication No. 10-2009-0022824 (March 04, 2009)

However, when energy harvesting is implemented by amplifying the strokes generated from the piezoelectric element, there are more restrictions than when the pressure itself is amplified, and in particular, the efficiency is very low.

An example of a constraint in the stroke amplification scheme of a piezoelectric element is an increase in cost due to the extremely high precision of the metallic amplification structure for amplifying the stroke of the piezoelectric element so that the cost is much higher than that of the harvesting element.

An example of the low efficiency of the stroke amplification scheme of a piezoelectric element is the reduction of the output pressure because the piezoelectric element output pressure depends not only on the pressure of the piezoelectric element but also on the volume and size of the amplification structure, And the transmission ability is largely influenced.

For example, when the stroke amplification of a piezoelectric element is amplified by about 10 times, the output pressure of the piezoelectric element is greatly reduced to about 1/20 times, and this reduction rate is further increased when elastic deformation occurs, It is forced to be low.

In particular, in order to increase the efficiency of the stroke amplification method of the piezoelectric element, the strain of the piezoelectric element must be enlarged, and the configuration of the amplification structure for the piezoelectric element must be further complicated, and the complicated configuration must further reduce the cost and performance.

In view of the above, the present invention, which is invented in view of the above, is to realize a high efficiency as compared with the piezoelectric element stroke amplification method and to realize infinite expansion through superposition of the lever principle by amplifying the pressure itself transmitted to the piezoelectric element by tens of times with the lever principle And it is an object of the present invention to provide an energy harvesting booster module unit to which an energy harvesting booster module capable of being easily mounted even in a limited space such as a Korean boiler with miniaturization using a lever principle.

In order to accomplish the above object, the energy harvesting power module of the present invention is connected to one end of a seating bed having a piezoelectric element opposite to a free end receiving an external force, A balance lever for amplifying the external force and applying the external force to the piezoelectric element with an amplified force to compress the piezoelectric element; Is included.

The balance lever is connected to one end of the seat bed opposite the free end receiving the external force in a state of being spaced apart in the longitudinal direction of the piezoelectric element.

The force lever may further include a joint at a connecting portion between the force lever and the seat bed so as to function as a center of the lever, and the load lever may be provided with a load that amplifies the external force through a portion connected to the joint, And a press for compressing the ink.

The piezoelectric elements are arranged in the same line on the press.

The joint is ball type and the press is wedge type.

The joint includes a hemispherical ball formed on the hemispherical lever, a hemispherical groove formed on the hemispherical ball to receive the hemispherical ball, and an end sloped surface formed by sloping one end of the hemispherical ball.

The press is constituted by a moving block formed with a pointed protruding pressure surface of a triangular cross section and a fixed block having a tapered depressed triangular sectional contact groove.

The inner angle of the triangular section formed by the pressing surface is relatively larger than the inner angle of the triangular section formed by the contact surface.

The pressing lever is further provided with a joint at a connecting portion between the pressing lever and the seating bed so as to function as a center of the lever, and a press receiving a load amplifying the external force through a portion of the pressing lever, And a stopper for compressing the piezoelectric element by a load exerted by the amplified force in the press.

The piezoelectric elements are arranged in the same line on the stopper, and the stoppers are arranged in the same line on the press.

The joint is ball-shaped, the press is a wedge type, and the stopper is a shear type.

Wherein the stopper has an input block formed with a front surface inclined to one side not connected to the press and a side surface having no other inclined surface which is in close contact with an inclined surface of the input block presses the piezoelectric element .

The input block and the output block simultaneously generate a shear force together with the axial force on the front end face, and the axial force and the shear force are 0.1 to 0.3 ratio.

The joint, the press, and the stopper are arranged on both right and left sides of the piezoelectric element, and the press and the stopper are arranged in a line on the piezoelectric element.

According to another aspect of the present invention, there is provided an energy harvesting power module including: a piezoelectric element; A seating bed having the piezoelectric element; A power lever connected to one end of the seating bed at a side opposite to a free end receiving an external force in a state of being spaced apart in the longitudinal direction of the piezoelectric element; A ball joint acting as a center of the leverage of the backup lever on a connection portion between the backup lever and the seating bed; A wedge-type press for compressing the piezoelectric element by a load that amplifies and applies the external force through a portion where the force lever is connected to the joint; Is included.

According to another aspect of the present invention, there is provided an energy harvesting power module including: a piezoelectric element; A seating bed having the piezoelectric element; A power lever connected to one end of the seating bed at a side opposite to a free end receiving an external force in a state of being spaced apart in the longitudinal direction of the piezoelectric element; A ball joint acting as a center of the leverage of the backup lever on a connection portion between the backup lever and the seating bed; A wedge-type press for receiving a load amplifying the external force through a portion where the force lever is connected to the joint; A stopper for compressing the piezoelectric element by a load exerted by the amplified force in the press; Is included.

In order to achieve the above object, an energy harvesting power module unit of the present invention is connected to one end of a seating bed having a piezoelectric element on the opposite side of a free end receiving an external force, A power lever for amplifying the external force and applying the external force to the piezoelectric element with an amplified force to compress the piezoelectric element; Characterized in that at least one further energy harvesting power module is connected in series so as to re-energize the external force energized by the energy harvesting power module.

In order to achieve the above object, an energy harvesting power module unit of the present invention is connected to one end of a seating bed having a piezoelectric element on the opposite side of a free end receiving an external force, A power lever for amplifying the external force and applying the external force to the piezoelectric element with an amplified force to compress the piezoelectric element; At least one or more other energy harvesting power modules are vertically overlapped with each other so that the energy harvesting power modules are stacked to each other so as to reinforce the external force exerted by the energy harvesting power module.

The present invention amplifies the pressure itself transmitted to the piezoelectric element by tens of folds on the basis of the lever principle, thereby achieving high efficiency as compared with the piezoelectric element stroke amplification method, and in particular, all the problems of the piezoelectric element stroke amplification method are solved.

Further, since the present invention can be infinitely expanded by the overlapping action of the lever principle, it is easy to increase the output to be transmitted to the piezoelectric element, and a special performance spherical shape can be obtained through a proper combination.

Further, since the structure of the present invention is greatly simplified by using the lever principle, the present invention can be easily mounted even in a limited space such as a box.

In addition, the present invention greatly simplifies the structure using the lever principle, and also has the effect of implementing energy harvesting at a low cost.

In addition, the present invention has the effect of minimizing the manufacturing process of the energy harvesting device and maximizing the productivity because the piezoelectric device and the amplifying mechanism using the lever principle are modularized through assembly.

2 is an operational state of the energy harvesting power module according to the present invention, FIG. 3 is an operating state of the joint of FIG. 2, and FIG. 4 is an operating state of the energy harvesting power module according to the present invention. Fig. 5 is a modification of the press and the stopper of Fig. 4, Fig. 6 is an operation state of the press of Fig. 5, and Fig. FIG. 7 is an example of an energy harvesting power module unit to which the energy harvesting power module of the present invention is applied, FIG. 8 is another example of the energy harvesting power module unit to which the energy harvesting power module according to the present invention is applied, 9 shows the layout and operation state of Fig.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

1 is a block diagram of an energy harvesting and powering module 1 according to an embodiment of the present invention. The energy harvesting and powering module 1 is connected to a plurality of powering modules 100, 200, Lt; / RTI >

As shown, the energy harvesting module 1 includes a seating bed 10 having a flat top surface, a piezoelectric element 20 positioned on the top surface of the seating bed 10, A force lever 30 whose force is applied to the joint 40 secured to the seat bed 10 by the force of a lever and a pressing force applied to the piezoelectric element 20 by a force applied through the joint 40, (50).

The mounting bed 10 is composed of a base 11 having a flat upper surface with a predetermined width and length and the base 11 is further provided with a bracket 15 for positioning the piezoelectric element 20 . The base 11 may further include vertical sidewalls 12 for functioning as a joint 40 by being bent perpendicularly to the base 11 from one side.

The piezoelectric element 20 is a kind of element in which a current, which is an electrical output, is generated at an applied pressure.

The extension lever 30 is formed with a displacement angle La that is pressed by an external force applied to one end and is vertically bent at the opposite end to be coupled with the joint 40 It acts as a leverage lever.

Therefore, the external force applied from one end of the force lever 30 pushes the force lever 30 downward by the displacement angle La, and the force lever 30 is lowered downward by the displacement angle La, An external force generated through the length A of the force lever 30 can be transmitted to the extension lever 31 bent in the lever 30. [

The external force generated through the force lever 30 is amplified by a leverage acting on the joint 40 connected to the extension lever 31 as a lever center LC and the amplified force is transmitted to the press 50 The piezoelectric element 20 can be compressed with a relatively large force as compared with the external force.

As shown in the schematic diagram of the leverage of FIG. 1, this levering action is given by the length A of the force lever 30 to which an external force is exerted in the joint 40 which is the center of the lever, (Pressure) P = external force F x (A / B) received by the piezoelectric element 20 when the distance B from the piezoelectric element 20 to the piezoelectric element 20 is given.

The joint 40 acts as the center of gravity LC of the force lever 30 and greatly amplifies the external force applied to the force lever 30 and transfers it to the press 50. Therefore, the joint 40 is constructed so as to amplify the force transmitted from the force lever 30 and effectively transmit the force to the press 50.

For example, the joint 40 includes a hemispherical ball 40-1a, a hemispherical groove 40-1b in which the hemispherical ball 40-1a is received, and an end inclined surface 40-1c cut out from the end surface (a).

The hemispherical ball 40-1a is formed directly on the force lever 30 and is formed directly on the extension lever 31 bent in the force lever 30.

The hemispherical groove 40-1b is formed directly on the seating bed 10 and specifically on the vertical side wall 12 bent perpendicularly to the base 11 of the seating bed 10.

The predetermined angle a of the end inclined plane 40-1c is set within about 3 degrees.

The press 50 includes a moving block 51 having a sharply protruding pressure surface 52 having a triangular cross section and a fixed block 56 having a triangular cross- 55).

The pressing surface 52 of the moving block 51 and the contact surface 56 of the fixing block 55 form a wedge structure.

However, since the internal angle of the triangular section formed by the pressing surface 52 has a relatively larger angle than the internal angle of the triangular section formed by the contact surface 56, the pressing surface 52 is formed on the contact surface 56 The pressing surface 52 can press the contact surface 56 with a wider contact area.

Therefore, when an external force applied to the balance lever 30 is applied to the joint 40 through the extension lever 31, the joint 40 is formed of the hemispherical ball 40-1a and the hemispherical groove 40-1b The pressing force generated in the joint 40 is transmitted to the moving block 51 of the press 50 and then the fixed block 55 subjected to the force is applied to the piezoelectric element 20), the piezoelectric element 20 can be compressed with a relatively large amplified force as compared with an external force.

As described above, by using the wedge type press 50 made up of the moving block 51 and the fixed block 55, the effect of the lever lever can be realized more efficiently.

FIG. 2 shows an operating state of the energy harvesting power module according to the present embodiment.

As shown in the figure, when the external force Pa is applied to the energy harvesting vibration generating module 1, the external force Pa is applied to one end of the boom lever 30 so that the boom lever 30 is displaced by a displacement angle La And the depressing force Pb amplified through the length A of the force lever 30 is applied to the extension lever 31 bent in the extension lever 30 by the downward displacement by the displacement angle La, ≪ / RTI >

The bulging force Pb is then converted to a pressing force Pc which is further strengthened by a leverage acting on the ball type joint 40 as the center of gravity LC and is transmitted to the press 50. In the press 50, The piezoelectric element 20 transmits the compressive force Pd that is further amplified through the wedge action of the moving block 51 and the fixed block 55 to the piezoelectric element 20 so that the piezoelectric element 20 is compressed Pd).

Fig. 3 shows the action of the ball joint 40 made up of the hemispherical ball 40-1a and the hemispherical groove 40-1b according to the present embodiment.

The center of the hemispherical ball 40-1a is changed from Ka-Ka to Ka-Kb, but the center of the hemispherical joint 40- The hemispherical balls 40-1a formed directly on the extension lever 31 are not separated from the hemispherical grooves 40-1b formed directly on the vertical side wall 12 of the deposit bed 10 so that a stable position can be secured.

Therefore, in the ball type joint 40, the bulging force Pb can be converted to an external force (pressing force Pc) which is further energized by the leverage action and transmitted to the press 50.

Particularly, the end inclined face 40-1c of about 3 degrees formed in the hemispherical ball 40-1a is formed so that any contact between the extension lever 31 and the vertical side wall 12 It prevents unnecessary energy consumption by not creating a collision area.

Therefore, as in the present embodiment, by using the coupling structure of the hemispherical groove 40-1a and the hemispherical groove 40-1b in which the ball type joint 40 forms the end inclined surface 40-1c, the pressure in the vertical direction Dispersion can be minimized.

4 shows the operation of the stopper 50 according to the present embodiment.

When the pressing force Pb of the force lever 30 is applied to the ball joint 40 and the pressing force Pc is transmitted to the stopper 50 due to the leverage acting through the joint 40 , The stopper 50 is pushed toward the piezoelectric element 20 so that the piezoelectric element 20 receives the compressive force Pd and is converted into a compressed state.

The stopper 50 is switched to the contact state Ca in which the pressing surface 52 of the moving block 51 presses the contact groove 56 of the fixed block 55, The pushing force Pc is generated in the fixed block 55 by the thickening force Pb because the moving block 51 is strongly pushed by the thickening force Pb in the caulking Ca.

Therefore, the pressing force Pc is generated in the stopper 50, and the piezoelectric element 20 receiving the pressing force Pc receives the compressive force Pd and is strongly compressed to generate energy conversion or current.

Generally, when the performance of the piezoelectric element 20 is excellent, power can be generated through a pressure of about 500 kgf. As the pressure applied to the piezoelectric element 20 increases, the output of the power increases further .

Therefore, even if the energy harvesting booster module 1 applies the force lever 30, the ball joint 40 and the wedge-type stopper 50 to relatively increase the external force, the external force is about 60 to 80 kgf The output size of the piezoelectric element 20 may be limited to a certain extent.

However, in the present embodiment, in addition to the force lever 30, the ball joint 40, and the wedge-type press 50, various methods for casting the external force to the piezoelectric element 20 are further implemented , It is possible to further increase the output size of the piezoelectric element 20 relatively even in a narrow space such as a cylinder chamber where the external force is about 60 to 80 kgf.

5 shows an example in which a wedge-type press 50 applied to an energy harvesting force application module and a force exerting an external force together with the stopper 60 further improves the force transfer efficiency.

As shown in the figure, a press 50 is made of a wedge type using a moving block 51 and a fixing block 55, and the presser 50 is provided with a stopper And the stopper 60 is arranged with the piezoelectric elements 20 in the same line so as to directly receive the more exerted force generated in the stopper 60. [

In the present embodiment, the stopper 60 further uses the shear force to further force the force transmitted from the press 50, and the piezoelectric element 20 is compressed by receiving the force of the stopper 60 The energy conversion and the power generation rate can be increased by about 20% as compared with the case where the stopper 60 is not provided.

The stopper 60 includes an input block 61 and an output block 62 arranged in a state of being closely attached to the input block 61. The input block 61 and the output block 62 are connected to each other And the front end faces 61a and 62a are further formed in the portion to be brought into close contact with each other.

The front end surfaces 61a and 62a are formed to be inclined at a shearing angle b within about 10 degrees.

As described above, since the front end faces 61a and 62a are formed between the input block 61 and the output block 62, the stopper 60 can be a shear type stopper.

As a result, the stopper 60, which receives the pressing force Fa from the press 50, acts on the input block 61 and the output block 62. As a result of this action, the stopper 60 presses the pressing force The shear force Fbb is simultaneously generated through the front end surfaces 61a and 62a of the input block 61 and the output block 62 inclined at about 10 degrees with the axial force Fba in the same direction as the axial direction Fba.

The axial force Fba and the shearing force Fbb are switched to the stopper pressing force Fb for pushing the input block 61 and the output block 62. At this time, the ratio of the axial force Fba to the shearing force Fbb is about 0.1 to 0.3.

The compressive force Fc received from the stopper 60 in a state in which the piezoelectric element 20 is arranged in line with the stopper 60 acts as the sum of the press force Fa and the stopper pressing force Fb, The piezoelectric element 20 generates a high energy conversion and power of at most 20% higher than when the press force Fa alone is received.

On the other hand, FIG. 6 shows that the energy harvesting vibration module can be arranged on both sides of one piezoelectric element 20 by paired press 50 and stopper 60.

A wedge type press 50 using a moving block 51 and a fixed block 55 and a shear type stopper 60 using an input block 61 and an output block 62 Another wedge type press 50-1 using the moving block 51 and the fixed block 55 and another shear type stopper using the input block 61 and the output block 62 60-1) is made up of another pair.

The pair of presses 50 and the stopper 60 are arranged on one side of the piezoelectric element 20 in the same line as the piezoelectric element 20 and on the opposite side of the piezoelectric element 20, Another pair of the press 50-1 and the stopper 60-1 may be arranged in line with the piezoelectric element 20. [

The pressing force Fa generated by the pair of presses 50 and the stopper 60 and the stopper pressing force Fb are transmitted to one side of the piezoelectric element 20, The pressure pressing force Fa-1 and the stopper pressing force Fb-1 generated in the other pair of presses 50-1 and 60-1 are transmitted to the other side of the piezoelectric element 20, The compressive force Fc of the two presser pressures Fa and Fa-1 is further increased by the sum of the two press pressures Fa and Fa-1 and the two stopper pressing forces Fb and Fb-1.

As described above, the compressive force Fc of the piezoelectric element 20 is further increased, so that the energy conversion and the power generation can be further improved in the piezoelectric element 20 as compared with the case where the piezoelectric element 20 is compressed by the pair of presses 50 and the stopper 60 .

In this embodiment, the energy harvesting power generation module 1 including the power lever 30, the ball joint 40 and the wedge type press 50, or the energy harvesting power module 1 or the ball lever 30 and the ball joint 40 and the wedge- The energy harvesting force generating module 1 composed of the type press 50 and the shear type stopper 60 are connected to each other to form a module unit so that the force is relatively small The output size of the piezoelectric element 20 can be further increased.

FIG. 7 shows an example of an energy harvesting power module unit to which the energy harvesting power module of this embodiment is applied.

As shown, the energy harvesting power module unit comprises an energy harvesting power module 1 comprised of a power lever 30, a ball joint 40 and a wedge-type press 50, a power lever 30 and a ball joint (40) and a wedge-type press (50).

In this case, the energy harvesting power generation module 1 and the another energy harvesting power generation module 100 are connected to each other in series, and the two or more energy harvesting power generation modules 1, By having a layout (Lay Out), two levers can be formed in the ball joint 40 of the energy harvesting power generating module 1 and the ball joint 40 of another energy harvesting power generating module 100.

Therefore, the energy harvesting power module unit can be powered by two or more piezoelectric elements 20 even in a narrow space such as a power plant where the external force can be about 60 to 80 kgf. The output size can be further increased.

However, the energy harvesting power module unit can be enlarged in size by arranging at least two or more of the energy harvesting power modules in series, and therefore, there is a limit to apply to the narrow space such as the kiln .

Meanwhile, FIG. 8 shows another example of the energy harvesting power module unit to which the energy harvesting power module of the present embodiment is applied.

As shown, the energy harvesting power module unit comprises an energy harvesting power module 1 comprising a power lever 30, a ball joint 40 and a wedge type press 50, and an energy harvesting power module 1) and at least three other energy harvesting power modules (100, 200, 300) having the same components as the energy harvesting power module (100, 200, 300).

In this case, the energy harvesting power generation module 1 and at least four or more of the energy harvesting power generation modules 100, 200, and 300 are connected to each other in a superposed state.

Therefore, as described above, at least four energy harvesting power modules (1, 100, 200, 300) have a layout (Lay Out) superimposed on each other, so that four ball centers can be formed in each ball joint 40.

Fig. 9 shows the layout (Lay Out) and the operating state of the energy harvesting power module unit.

As shown in the figure, the energy harvesting power module unit is installed in the energy harvesting power module 1, which is staggeredly stacked on the energy harvesting power module 1, on the basis of the energy harvesting power module 1, Which is divided into a lateral direction input load and a longitudinal direction input load, and then staggeredly stacked in the energy harvesting and power generation module 100 (hereinafter, referred to as " energy harvesting " 200, the load applied from the energy harvesting power module 100 is divided into a lateral direction input load and a longitudinal direction input load.

The horizontal input loads of the energy harvesting power module 100 and the energy harvesting power module 200 are added together and the energy harvesting power module 100 and the energy harvesting power module 200 200 are added together.

However, the energy harvesting power module 100 and the energy harvesting power module 200 vertically overlap each other in a staggered state, so that longitudinal input loads are canceled each other, while in the energy harvesting power module 100, And the horizontal input loads of the energy harvesting power module 200 may be transmitted to the pressure device 20 in a state of being summed with each other.

The force transfer relationship is also implemented in another energy harvesting power module 300 that receives the load of the energy harvesting power module 200.

 Therefore, the energy harvesting power module unit can be powered by four or more external forces, and the power can be supplied through two or more piezoelectric elements 20 even in a narrow space such as a power plant where the external force is about 60 to 80 kgf. The output size can be further increased.

Particularly, the energy harvesting power module unit is arranged in a state where the energy harvesting power generating modules (1,100,200,300) are superpositioned with each other, so that the overall size can be greatly reduced. Therefore, the energy harvesting power module units can be easily applied in a narrow space have.

As described above, the energy harvesting power module according to the present embodiment is arranged such that the opposite side of the free end receiving external force in the longitudinal direction of the piezoelectric element 20 provided on the seating bed 10 is connected to the seating bed A joint 40 acting as the center of the leverage of the force lever 30 and an external force being amplified through the joint of the force lever 30 and the joint 40 Since the piezoelectric element 20 receives the load applied thereto and includes the press 50 for compressing the piezoelectric element 20, it is possible to realize infinite expansion through the superposition action of the lever principle and high efficiency compared with the piezoelectric element stroke amplification system. Particularly, It can be easily mounted even in a limited space such as a military boom.

1,100,200,300: Power module
10: seating bed 11: base
12: vertical side wall 15: bracket
20: piezoelectric element
30: Power lever 31: Extension lever
40: joint 40-1a: hemispherical ball
40-1b: hemispherical groove 40-1c: end inclined surface
50: Press
51: moving block 52: pressing face
55: fixed block 56: contact groove
60: stopper 61: input block
61a, 62a: front end surface 62: output block

Claims (23)

The opposite side of the free end receiving the external force is connected to one end of the seat bed having the piezoelectric element and the external force is amplified with the connecting portion of the seat bed as the center of the lever, A power lever for applying pressure to the element to compress the piezoelectric element;
A ball-shaped joint provided at a connection portion between the force lever and the seat bed to serve as a center of the lever;
And a wedge type press for compressing the piezoelectric element by a load applied to amplify the external force through a portion connected to the joint, wherein the joint includes a hemispherical ball formed on the hemisphere lever, A hemispherical groove for receiving the hemispherical ball to prevent the center of the hemispherical ball from moving when the external force is amplified by a leverage action and then converted to a more biased pressing force, And an end inclined surface formed by sloping one end of the hemispherical ball so as not to create a collision site.
The energy harvesting power module according to claim 1, wherein the power lever is connected to one end of the seating bed opposite the free end receiving the external force in a state of being spaced apart from the piezoelectric element in the longitudinal direction.
delete The energy harvesting power module of claim 1, wherein the piezoelectric elements are collinearly arranged on the press.
delete delete The energy harvesting apparatus according to claim 1, wherein the press comprises a moving block formed with a pointed protruding pressing surface of a triangular cross-section, and a fixed block formed with a pointed recessed triangular- module.
The energy harvesting power module according to claim 7, wherein the internal angle of the triangular section formed by the pressing surface is relatively larger than the internal angle of the triangular section formed by the contact groove.
The energy harvesting power module as claimed in claim 1, further comprising a stopper for compressing the piezoelectric element under a load applied by a further amplified force in the press.
The energy harvesting assisting module according to claim 9, wherein the piezoelectric elements are arranged in the same line on the stopper, and the stoppers are arranged in the same line on the press.
The energy harvesting power module of claim 9, wherein the stopper is a shear type.
[12] The method of claim 11, wherein the stopper comprises: an input block formed with a front surface inclined to one surface not connected to the press; and one surface having no other inclined surface which is in close contact with an inclined surface of the input block, And an output block for pressurizing the energy harvesting module.
[Claim 12] The energy harvesting power module according to claim 12, wherein the input block and the output block simultaneously generate a shear force together with axial force on the front end surface, and the axial force and the shear force are 0.1 to 0.3 ratio.
delete delete delete delete The opposite side of the free end receiving the external force is connected to one end of the seat bed having the piezoelectric element and the external force is amplified with the connecting portion of the seat bed as the center of the lever, A ball lever which is provided at a connecting portion between the ball lever and the seating bed so as to serve as a center of the lever, a ball lever which is provided at a connecting portion between the ball lever and the ball lever, A wedge type press for compressing the piezoelectric element by a load applied to amplify the piezoelectric element;
At least one or more other energy harvesting power modules are connected in series so as to re-energize the external force exerted by the energy harvesting power module;
Wherein the joint comprises a hemispherical ball formed in the hemispherical ball and a hemispherical ball formed in the hemispherical ball so as to prevent the center of the hemispherical ball from moving when the external force applied to the hemispherical ball is amplified by a leverage action, And an end inclined face formed by sloping one end of the hemispherical ball so that the hemispherical ball does not make a contact or a collision part between the extending lever and the vertical side wall.
The opposite side of the free end receiving the external force is connected to one end of the seat bed having the piezoelectric element and the external force is amplified with the connecting portion of the seat bed as the center of the lever, A ball lever which is provided at a connecting portion between the ball lever and the seating bed so as to serve as a center of the lever, a ball lever which is provided at a connecting portion between the ball lever and the ball lever, A wedge type press for compressing the piezoelectric element by a load applied to amplify the piezoelectric element;
At least one or more other energy harvesting power modules vertically overlap and stack to each other in a staggered state so as to reinforce the external force exerted by the energy harvesting power module;
The joint includes a hemispherical ball formed on the hemispherical lever, and an anti-rotation mechanism for preventing center movement of the hemispherical ball (40-1a) when the external force applied to the hemispherical seat is amplified by a leverage action and then converted into a more pressing force And one end of the hemispherical ball is sloped so as not to create a contact or a collision area between the hemispherical ball 40-1a and the extension lever 31 and the vertical side wall 12 End inclined surface is formed on the inner surface of the energy harvesting power module unit.
delete The energy harvesting power module unit according to claim 18 or 19, wherein the piezoelectric elements are collinearly arranged on the press.
The energy harvesting power module unit according to claim 18 or 19, further comprising a stopper for compressing the piezoelectric element by a load exerted by the amplified force in the press.
23. The energy harvesting power module unit according to claim 22, wherein the press and the stopper are arranged in the same line on the piezoelectric element.

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