Power generation device for improving efficiency by using resonance

Abstract

The invention relates to a power generation device using resonance to improve efficiency. More specifically, the present invention relates to a power generation device which generates power by using vibration generated by a cylindrical base part and improves efficiency by using resonance. According to the present invention, a power generation device for improving efficiency by resonance may comprise: a cylindrical base part (Base Part); and a piezoelectric part which includes at least one piezoelectric element, is provided on an outer surface of the base part, and generates power by vibration generated by the base part.

Description

Technical Field

[0001] The invention relates to a power generation device which utilizes resonance to improve efficiency. Background Art

[0002] Recently, people are increasingly concerned about environmentally friendly new renewable energy technologies.

[0003] Among new renewable energy technologies, power generation technology using vibration has recently become an active research and development field. Summary of the invention

[0004] The power generation device for improving efficiency by utilizing resonance according to the present invention may include: a cylindrical base portion; and a piezoelectric portion including at least one piezoelectric element disposed on an outer surface of the base portion and generating electricity through vibration generated by the base portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 A schematic diagram for explaining the structure of a power generation device for improving efficiency by utilizing resonance according to the present invention;

[0006] Figures 2 to 12 is a schematic diagram for explaining the base portion and the piezoelectric portion in detail;

[0007] Figure 13 to Figure 14 A schematic diagram for illustrating in detail the vibration generating device and its related parts;

[0008] Figure 15 to Figure 16 A schematic diagram for explaining in detail the cover part, the column part and their related parts;

[0009] Figures 17 to 19 It is a schematic diagram for explaining another structure of a power generation device for improving efficiency by utilizing resonance according to the present invention. DETAILED DESCRIPTION

[0010] Figure 1 It is a schematic diagram for explaining the structure of a power generation device for improving efficiency by utilizing resonance according to the present invention.

[0011] See also Figure 1 According to the present invention, a power generation device 10S (hereinafter referred to as “power generation device”) for improving efficiency by using resonance may include a base portion 10 and a piezoelectric portion 20 .

[0012] Meanwhile, the power generating device 10S may further include at least one of the vibration generating device 30 , the driving unit 40 , or the arm unit 50 .

[0013] The base portion 10 may be cylindrical.

[0014] The base 10 can be made of any material that can generate vibration. Preferably, the base 10 is made of metal materials such as aluminum and copper.

[0015] The piezoelectric portion 20 may be disposed on an outer side surface of the base portion 10 .

[0016] The piezoelectric portion 20 may include at least one piezoelectric element and generate electricity through vibration generated by the base portion 10 .

[0017] The vibration generating device 30 generates vibration of the base portion 10 by applying at least one of friction or impact.

[0018] The arm portion 50 may drive the vibration generating device 30 according to the control of the driving portion 40 .

[0019] The driving portion 40 may control the arm portion 50 to apply friction and / or impact to the base portion 10 .

[0020] The driving part 40 may store or supply electricity generated by the piezoelectric part 20 using vibration of the base part 10 to the system.

[0021] To this end, the driving portion 40 may receive electricity from the piezoelectric portion 20 through the power line PL.

[0022] Not present Figure 1 Reference symbol IS described in the accompanying drawings may denote an inner side surface corresponding to the outer side surface OS of the base portion 10 .

[0023] When the vibration generating device 30 applies impact and / or friction to the base portion 10 , the base portion 10 may generate vibration.

[0024] Here, the base portion 10 may resonate according to the vibration frequency.

[0025] Therefore, the vibration of the base portion 10 does not disappear in a short time, but gradually weakens and is maintained for a sufficiently long time.

[0026] Thus, the amount of electricity generated by the piezoelectric portion 20 using the vibration of the base portion 10 can be increased.

[0027] Then, the driving part 40 may receive the electricity generated by the piezoelectric part 20 to store or supply it to the system.

[0028] Next, each part of the power generation device 10S according to the present invention will be described in detail.

[0029] Figures 2 to 12 Detailed description of the base and the piezoelectric part may be omitted below.

[0030] See also Figure 2 The base portion 10 may be in the shape of a cylinder with one side E1 open and the other side E2 closed.

[0031] To this end, the power generating device 10S according to the present invention may further include a cover portion 110 closing the other side E2 of the base portion 10 .

[0032] The cover part 110 may include a portion protruding rearward in the length direction DR1 of the base part 10 .

[0033] The cover portion 110 may be made of the same material as the base portion 10 .

[0034] The cover portion 110 may be connected to the other side E2 of the base portion 10 .

[0035] Alternatively, the cover portion 110 and the base portion 10 may be integrally formed to form a whole.

[0036] The cover portion 110 may have a hemispherical shape.

[0037] The power generating device 10S according to the present invention may further include a column portion 120 .

[0038] One side of the pillar portion 120 may be connected to a central portion of the cover portion 110 .

[0039] The other side of the rod 120 may be connected to a bracket (not shown).

[0040] The inner diameter R1 of the base portion 10 , the length D3 of the base portion 10 , and the average wall thickness D2 of the base portion 10 may be appropriately adjusted so that the base portion 10 can sufficiently and effectively resonate in accordance with the vibration frequency.

[0041] Preferably, the ratio of the inner diameter R1 of the base portion 10 to the length D3 of the base portion 10 along the length direction DR1 is 1:0.5 to 1:2.

[0042] More preferably, the ratio of the inner diameter R1 of the base portion 10 to the length D3 of the base portion 10 along the longitudinal direction DR1 is 1:0.8 to 1:3.

[0043] Preferably, the ratio of the inner diameter R1 of the base portion 10 to the average wall thickness D2 of the base portion 10 is 200:1 to 5:1.

[0044] More preferably, the ratio of the inner diameter R1 of the base portion 10 to the average wall thickness D2 of the base portion 10 is 100:1 to 20:1.

[0045] A plurality of piezoelectric elements 20 may be provided on the outer side surface of the base portion 10 along the circumferential direction DR2 of the base portion 10 .

[0046] In the longitudinal direction DR1 of the base portion 10 , the piezoelectric portion 20 and the one side E1 of the base portion 10 may be separated by a predetermined distance D1 .

[0047] In the longitudinal direction DR1 of the base portion 10 , a curved surface CS may be provided between the piezoelectric portion 20 and the one side E1 of the base portion 10 .

[0048] At the same time, in the longitudinal direction DR1 of the base portion 10 , the piezoelectric portion 20 and the other side E2 of the base portion 10 may be separated by a predetermined distance D1 a.

[0049] In the longitudinal direction DR1 of the base portion 10 , another curved surface CS1 may be provided between the piezoelectric portion 20 and the other side E2 of the base portion 10 .

[0050] In the length direction DR1 of the base portion 10 , a distance D1 between the piezoelectric portion 20 and one side E1 of the base portion 10 may be greater than a distance D1 a between the piezoelectric portion 20 and the other side E2 of the base portion 10 .

[0051] See also Figure 3 The outer side surface (OS) of the base portion 10 may have at least one plane.

[0052] The outer side surface of the base portion 10 may include a plurality of flat surfaces FS along the circumferential direction DR2 of the base portion 10 .

[0053] The piezoelectric portion 20 may be disposed on the plane FS.

[0054] At this time, the curved surface CS may be located between the plane FS and the one side E1 of the base portion 10 in the length direction DR1 of the base portion 10 .

[0055] The curved surface CS may have a smooth surface.

[0056] The length D4 of the plane FS in the longitudinal direction DR1 of the base portion 10 may be greater than the width D5 of the plane FS in the circumferential direction DR2 of the base portion 10 .

[0057] The length D6 of the piezoelectric portion 20 in the longitudinal direction DR1 may be greater than the width D7 in the circumferential direction DR2 .

[0058] An adhesive layer 200 for attaching the piezoelectric portion 20 to the base portion 10 is provided between the flat surface FS and the piezoelectric portion 20 .

[0059] The adhesive layer 200 may be made of epoxy resin material.

[0060] The piezoelectric portion 20 may be fixed on the plane FS via the adhesive layer 200 .

[0061] Figure 4 (A) is a schematic diagram showing the base portion 10 cut along the line A1 - A2 corresponding to the curved surface CS.

[0062] See also Figure 4(A), the base portion 10 may have a constant wall thickness D8 in a region corresponding to the curved surface CS.

[0063] at the same time, Figure 4 (B) is a schematic diagram showing the base portion 10 cut along the line A3 - A4 corresponding to the plane FS.

[0064] See also Figure 4 (B), the base portion 10 has a variable wall thickness in a region corresponding to the plane FS.

[0065] In the region corresponding to the plane FS, the base portion 10 may have a minimum wall thickness D9 at a portion corresponding to the center of the plane FS in the circumferential direction DR2 .

[0066] At the same time, in the region corresponding to the plane FS, the average wall thickness of the base portion 10 may be thinner than the wall thickness D10 of the base portion 10 in the region corresponding to between the two planes FS.

[0067] See also Figure 5 (A), the wall thickness D10 of the base portion 10 in the region corresponding to between the two flat surfaces FS may be substantially equal to the wall thickness D8 of the base portion 10 in the region corresponding to the curved surface CS.

[0068] See also Figure 5 (B), the wall thickness D8 in the area corresponding to the curved surface CS of the base portion 10 may be greater than the maximum wall thickness D10 in the area corresponding to the flat surface FS of the base portion 10 .

[0069] See also Figure 6 Another curved surface CS2 may be provided between two adjacent piezoelectric portions 20 in the peripheral direction DR2 of the base portion 10 .

[0070] The base portion 10 may have a constant wall thickness D11 in a region corresponding to the other curved surface CS2 .

[0071] In the circumferential direction DR2 of the base portion 10 , a width D12 of the other curved surface CS2 may be smaller than a width D13 of the flat surface FS.

[0072] From another perspective, based on the center of the base portion 10 , an angle θ2 corresponding to the other curved surface CS2 may be smaller than an angle θ1 corresponding to the plane FS.

[0073] See also Figure 7 (A), the wall thickness D11 of the base portion 10 corresponding to the other curved surface CS2 may be smaller than the wall thickness D8 of the base portion 10 in the region corresponding to the curved surface CS.

[0074] See also Figure 7 (B), and the above Figure 6Different from the case of (A), in the circumferential direction DR2 of the base portion 10, the width D15 of the other curved surface CS2 may be greater than the width D14 of the flat surface FS.

[0075] From another perspective, based on the center of the base portion 10 , the angle θ4 corresponding to the other curved surface CS2 may be greater than the angle θ3 corresponding to the plane FS.

[0076] At this time, the adhesive layer 200 corresponds to the plane FS in the first area AR1 , and corresponds to the other curved surface CS2 in the second area AR2 located on both sides of the first area AR1 .

[0077] Furthermore, the piezoelectric portion 20 also corresponds to the flat surface FS in the first region AR1 , and corresponds to the other curved surface CS2 in the second region AR2 .

[0078] See also Figure 8 , another curved surface CS1 may be omitted between the plane FS in the length direction DR1 and the other side E2 of the base portion 10 .

[0079] At this time, the plane FS may be adjacent to the cover portion 110 .

[0080] See also Fig. 9 The curved surface CS of the base portion 10 may include a plurality of protrusions 130 having a convex shape.

[0081] In this case, the contact area of ​​the base portion 10 with the vibration generating device 30 can be increased.

[0082] See also Fig.10 The curved surface CS of the base portion 10 may include a groove 140 extending along the length direction DR1 and recessed to a predetermined depth.

[0083] Between two adjacent grooves 140 , there may be a peak 141 extending along the length direction DR1 .

[0084] The diameter of the base portion 10 at a region corresponding to the groove 140 may be smaller than the diameter of the base portion 10 at a region corresponding to the peak 141 .

[0085] See also Fig.11 , a concave-shaped recessed portion 150 may be formed on the plane FS of the base portion 10 .

[0086] The recessed portion 150 may include a portion extending in the length direction DR1 of the base portion 10 .

[0087] The recessed portion 150 may include another plane FS1 therein.

[0088] The piezoelectric portion 20 may be disposed on another plane FS1 in the recessed portion 150 .

[0089] A length D16 of the recessed portion 150 in the length direction DR1 of the base portion 10 may be smaller than a length D4 of the plane FS.

[0090] A width D17 of the recessed portion 150 in the circumferential direction DR2 of the base portion 10 may be smaller than a width D5 of the plane FS.

[0091] The piezoelectric portion 20 may correspond to a portion of the base portion 10 having the minimum thickness D9.

[0092] In this case, the base portion 10 can be made to resonate more easily.

[0093] See also Fig.12 (A), a width D17 of the recessed portion 150 in the circumferential direction DR2 of the base portion 10 may be greater than a distance D18 between two adjacent recessed portions 150 .

[0094] The minimum thickness D9 of the base portion 10 may be smaller than the average depth D19 of the recessed portion 150 .

[0095] See also Fig.12 (B) The power generating device 10S according to the present invention may further include a protective layer 210 covering the piezoelectric portion 20 disposed in the recessed portion 150 .

[0096] Figure 13 to Figure 14 1 is a schematic diagram for explaining the vibration generating device and its related parts in detail.

[0097] See also Fig.13 The vibration generating device 30 generates vibration of the base portion 10 by applying at least one of friction and impact to the curved surface CS of the base portion 10 .

[0098] For example, the vibration generating device 30 may rotate or reciprocate along the curved surface CS while being in contact with the curved surface CS of the base portion 10 .

[0099] In order to generate vibration more effectively, the portion 300 contacting the curved surface CS of the vibration generating device 30 may be made of a material softer than the base portion 10 .

[0100] The portion 300 that contacts the curved surface CS of the vibration generating device 30 may be made of a leather material, a polyurethane material, a rubber material, a PC (Poly Carbonate) material, and / or a synthetic resin material.

[0101] One base portion 10 may include a plurality of vibration generating devices 30 .

[0102] For example, Fig.14As shown, a first sub-vibration generating device 30S1 and a second sub-vibration generating device 30S2 may be provided corresponding to one base portion 10 .

[0103] The arm portion 500 may include a first sub-arm portion 50S1 , a second sub-arm portion 50S2 , and a rotating portion 500 .

[0104] One end of the first sub-arm 50S1 may be connected to the first sub-vibration generating device 30S1 , and one section of the second sub-arm 50S2 may be connected to the second sub-vibration generating device 30S2 .

[0105] The other end of the first sub-arm 50S1 and the other end of the second sub-arm 50S2 may be connected to the rotating portion 500 .

[0106] The base portion 10 may be disposed between the first sub-arm portion 50S1 and the second sub-arm portion 50S2 .

[0107] When the first sub-arm portion 50S1 and the second sub-arm portion 50S2 are in contact with the curved surface CS of the base portion 10 , the rotating device 500 can rotate.

[0108] At this time, the base portion 10 may vibrate through the first sub-arm portion 50S1 and the second sub-arm portion 50S2 .

[0109] Figure 15 to Figure 16 1 is a schematic diagram for explaining the cover part, the column part and related parts in detail.

[0110] See also Fig.15 (A), the other side of the rod 120 can be connected to the bracket (60).

[0111] See also Fig.15 (B), a first hole H1 may be formed in the central portion of the cover portion 110 .

[0112] The column part 120 may include a portion that supports the cover part 110 and is inserted into the first hole H1 .

[0113] See also Fig.16 The power generation device 10S according to the present invention may further include a buffer portion 111 including a portion located on a side wall of the first hole H1 .

[0114] The buffer portion 111 may be made of a material softer than the cover portion 110 .

[0115] For example, the buffer portion 111 is made of a rubber material, a synthetic resin material, and / or a plastic material.

[0116] A thread may be formed on the surface of the buffer 111 .

[0117] The column portion 120 may include a column body portion 121 , a first portion 122 forming a thread, and a nut portion 123 coupled to the first portion 122 .

[0118] The first portion 122 of the column part 120 may be inserted into the first hole H1 while being engaged with the thread of the buffer part 111 .

[0119] In this case, the base portion 10 can be vibrated more effectively.

[0120] Figures 17 to 19 This is a schematic diagram for explaining another structure of a power generation device for improving efficiency by utilizing resonance according to the present invention.

[0121] See also Fig.17 Another power generating device 10S1 according to the present invention may include a first base portion 10A, a second base portion 10B, a piezoelectric portion 20, a first cover portion 110A, and a second cover portion 110B.

[0122] The first base portion 10A and the second base portion 10B may each have a cylindrical shape.

[0123] The piezoelectric portion 20 may include at least one piezoelectric element, which is disposed on the outer side surfaces of the first base portion 10A and the second base portion 10B, respectively, and generates electricity through vibration generated by the first base portion 10A or the second base portion 10B.

[0124] The first base portion 10A and the second base portion 10B each have one side E1 open and another side E2 closed.

[0125] The first cover portion 110A may close the other side E2 of the first base portion 10A, and the second cover portion 110B may close the other side E2 of the second base portion 10B.

[0126] Here, the one side E1 of the first base portion 10A and the two sides E1 of the second base portion 10B may be opposite to each other.

[0127] Another power generation device 10S1 according to the present invention may further include a first pillar portion 120A, a first bracket 60A, a second pillar portion 120B, and a second bracket 60B.

[0128] One end of the first column portion 120A may be connected to a central portion of the first cover portion 110A.

[0129] The other end of the first column portion 120A may be connected to the first bracket 60A.

[0130] One end of the second pillar portion 120B may be connected to the center portion of the second cover portion 110B.

[0131] The other end of the second column portion 120B may be connected to the second bracket 60B.

[0132] Here, the first bracket 60A may be located on the ground, and the second bracket 60B may be located on the top of the first bracket 60A.

[0133] Corresponding to the first base portion 10A, the 1-1th sub-vibration generating device 30AS1 and the 2-1th sub-vibration generating device 30AS2 can be applied.

[0134] Corresponding to the first base portion 10B, the 2-2nd sub-vibration generating device 30BS1 and the 2-2nd sub-vibration generating device 30BS2 can be applied.

[0135] At this time, the vibration generated by the first base portion 10A is transmitted to the second base portion 10B to amplify the vibration of the second base portion 10B.

[0136] At the same time, the vibration generated by the second base portion 10B is transmitted to the first base portion 10A to amplify the vibration of the first base portion 10A.

[0137] The distance D20 between the first and second base portions 10A and 10B may be smaller than the lengths D1A and D1B of the curved surfaces CS of the first and second base portions 10A and 10B in the longitudinal direction DR1 .

[0138] See also Fig.18 The 1-1th sub-vibration generating device 30AS1 can reciprocate in the third area AR3 while being in contact with the curved surface CS of the first base portion 10A.

[0139] The 2-1st sub-vibration generating device 30AS2 can reciprocate in the fourth area AR4 while being in contact with the curved surface CS of the first base portion 10A.

[0140] In this manner, the 1-1th sub-vibration generating device 30AS1 and the 2-1th sub-vibration generating device 30AS2 can generate vibrations by applying friction to the curved surface CS of the first base portion 10A.

[0141] The 1-2 sub-vibration generating device 30BS1 can reciprocate in the fifth area AR5 while being in contact with the curved surface CS of the second base portion 10B.

[0142] The 2-2nd sub-vibration generating device 30BS2 can reciprocate in the sixth area AR6 while being in contact with the curved surface CS of the second base portion 10B.

[0143] In this manner, the 1-2 sub-vibration generating device 30BS1 and the 2-2 sub-vibration generating device 30BS2 can generate vibrations by applying friction to the curved surface CS of the second base portion 10B.

[0144] See also Fig.19 , the 1-1th sub-vibration generating device 30AS1 and the 2-1th sub-vibration generating device 30AS2 can be integrated into the first resonance generating device 30CS1.

[0145] The first resonance generating device 30CS1 can generate vibration by applying friction to the curved surface CS in the third area AR3 of the first base portion 10A and the fifth area AR5 of the second base portion 10B.

[0146] The 1-2nd sub-vibration generating device 30BS1 and the 2-2nd sub-vibration generating device 30BS2 may be integrated into a second resonance generating device 30CS2.

[0147] The second resonance generating device 30CS2 can generate vibration by applying friction to the curved surface CS in the fourth area AR4 of the first base portion 10A and the sixth area AR6 of the second base portion 10B.

Claims

1. A power generation device utilizing resonance to improve efficiency, characterized in that: include: a cylindrical base part (BasePart); and A piezoelectric part (Piezoelectric Part), including at least one piezoelectric element (Piezoelectric Element), is disposed on the outer surface of the base part, and generates electricity through vibration generated by the base part; Wherein, one side of the base is open and the other side is closed.

2. The power generation device for improving efficiency by utilizing resonance according to claim 1, characterized in that: Also includes a cover part (Cover Part) that closes the other side of the base part; and A pillar part connected to the central part of the cover part; wherein the cover includes a protruding portion; The column is connected to the bracket.

3. The power generation device for improving efficiency by utilizing resonance according to claim 1, characterized in that: The base portion has at least one flat surface on the outer side surface; The piezoelectric portion is disposed on the plane.

4. The power generation device for improving efficiency by utilizing resonance according to claim 3, characterized in that: A curved surface is provided between the plane and one side of the base portion along a longitudinal direction of the base portion.

5. The power generation device for improving efficiency by utilizing resonance according to claim 4, characterized in that: Also included is a vibration generating means (Vibration Generating Means), which is used to make the base vibrate by applying at least one of friction or impact to the curved surface; The portion of the curved surface that contacts the vibration generating device may be made of a material softer than the base portion.

6. The power generation device for improving efficiency by utilizing resonance according to claim 4, characterized in that: The base portion has a constant wall thickness in an area corresponding to the curved surface; The base portion has a variable wall thickness in a region corresponding to the plane.

7. The power generation device for improving efficiency by utilizing resonance according to claim 6, characterized in that: In a region corresponding to the plane, an average wall thickness of the base portion is thinner than a wall thickness of the base portion in a region corresponding to between the two planes.

8. The power generation device for improving efficiency by utilizing resonance according to claim 4, characterized in that: An adhesive layer for attaching the piezoelectric portion to the base portion is provided between the flat surface and the piezoelectric portion.

9. The power generation device for improving efficiency by utilizing resonance according to claim 4, characterized in that: forming a concave portion in a concave shape on the plane; The recessed portion includes a portion extending along the length direction of the base portion; The piezoelectric portion is disposed in the recessed portion.

10. A power generation device utilizing resonance to improve efficiency, characterized in that: include: A first cylindrical base part (BasePart); A cylindrical second base part (Base Part); and A piezoelectric part, comprising at least one piezoelectric element, each of which is disposed on an outer surface of the first base part and the second base part, and generates electricity through vibration generated by the first base part or the second base part; Wherein, one side of the first base part and the second base part is open and the other side is closed; Also includes a first cover part (First Cover Part) that closes the other side of the first base part; and A second cover part (Second Cover Part) closing the other side of the second base part; The one side of the first base portion and the one side of the second base portion are opposite to each other.

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