CN105406764A - Rotary type piezoelectric generator apparatus - Google Patents

Rotary type piezoelectric generator apparatus Download PDF

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Publication number
CN105406764A
CN105406764A CN201510820104.1A CN201510820104A CN105406764A CN 105406764 A CN105406764 A CN 105406764A CN 201510820104 A CN201510820104 A CN 201510820104A CN 105406764 A CN105406764 A CN 105406764A
Authority
CN
China
Prior art keywords
piezoelectric
cam
generator
house
generating
Prior art date
Application number
CN201510820104.1A
Other languages
Chinese (zh)
Inventor
徐煌
Original Assignee
南京工业职业技术学院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京工业职业技术学院 filed Critical 南京工业职业技术学院
Priority to CN201510820104.1A priority Critical patent/CN105406764A/en
Publication of CN105406764A publication Critical patent/CN105406764A/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
    • H02N2/18Electric machines in general using piezo-electric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators

Abstract

The invention relates to a rotary type piezoelectric generator apparatus. The rotary type piezoelectric generator apparatus comprises a lower shell, a cam, a cam shaft and a plurality of piezoelectric generation mechanisms; the cam is arranged in the central position of a base; the cam shaft is arranged in the center of the cam and used for driving the cam to rotate; each piezoelectric generation mechanism comprises a pushing rod, an elastic element and a piezoelectric stack; the multiple piezoelectric generation mechanisms are circumferentially arranged in the lower shell around the cam; the elastic element is in contact with the piezoelectric stack and tightly presses the piezoelectric stack; and one end of the pushing rod is connected with the elastic element while the other end of the pushing rod is in contact with the surface of the cam. The rotary type piezoelectric generator apparatus has the beneficial effects that the rotary type piezoelectric generator apparatus performs piezoelectric power generation by the cam, so that the generator apparatus is more reliable, and the service life of the generator apparatus is prolonged; and meanwhile, the seamless joint between the piezoelectric generator apparatus and equipment of industrial applications can be ensured without influencing the power generation efficiency.

Description

A kind of rotary piezoelectric generator device

Technical field

The present invention relates to piezo-electric generating technology, particularly relate to a kind of rotary piezoelectric generator device.

Background technology

Piezo-electric generating material owing to being squeezed and vibrating the characteristic that just can generate electricity, now extensively apply by Most scholars.But piezoelectric is mainly made piezoelectric sheet based on the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of piezo-electric generating material and is engaged with mass by great majority, vibration principle is utilized to make it generate electricity, make piezoelectric generating device generate electricity fluctuation range greatly like this, and complex structure work is unreliable, the life-span is shorter.

Summary of the invention

The present invention is directed to above reason, utilize cam rotor type structural design, rotarily drive piezo-electric device by cam and generate electricity.

For achieving the above object, rotary piezoelectric generator device of the present invention, comprise lower house, cam, camshaft and piezoelectric generating mechanism, described cam is arranged on base center, described camshaft is arranged on cam center, band moving cam rotates, described piezoelectric generating mechanism comprises push rod, flexible member and piezoelectric pile, described piezoelectric generating mechanism is arranged on lower house inside around cam circumference, described flexible member contacts with piezoelectric pile, and pressed against piezoelectric pile, described push rod one end is connected with flexible member, the other end and cam surface contact.

In order to be fixed piezoelectric generating mechanism, in described lower house, cam circumference is provided with six dead slot bodies, described piezoelectric pile and flexible member are arranged in the dead slot body on lower house, and piezoelectric pile is arranged on bottom dead slot body.

Further, in order to be fixed piezoelectric pile, rotary piezoelectric generator device also comprises upper shell, described upper shell is provided with six dead slot bodies suitable with lower house, center is provided with circular hole, described upper shell is bolted through camshaft and lower house, and piezoelectric generating mechanism is arranged in dead slot body.

In order to reduce the friction between cam and push rod, improve generating efficiency, described piezoelectric generating mechanism also comprises roller and pin, and described roller is connected with push rod by pin, and roller conflicting is at cam face.

Preferred flexible member material is rubber, spring or hydraulic means.

Further, the composition of described piezoelectric pile is piezoelectric.

In order to ensure camshaft rotation efficiency, upper shell, lower house and camshaft are provided with bearing.

Cam rotor type structure of the present invention is widely used in water pump and rotating machinery field, therefore utilizes cam piezo-electric generating, more reliably, improves useful life, can ensure carry out slitless connection with the equipment in commercial Application and do not affect its generating efficiency simultaneously.

Accompanying drawing explanation

Fig. 1 is the front view of rotary piezoelectric generator device;

Fig. 2 is the vertical view of rotary piezoelectric generator device;

In figure: 1 is upper shell, 2 is lower houses, and 3 is cams, and 4 is ball bearings, and 5 is rollers, and 6 is pins, and 7 is push rods, and 8 is flexible members, and 9 is piezoelectric pile, and 10 is camshafts, and 11 is dead slot bodies.

Embodiment

As Fig. 1, rotary piezoelectric generator device of the present invention is primarily of lower house 2, cam 3, camshaft 10, dead slot body 11, ball bearing 4 and piezoelectric generating mechanism composition, cam 3 center is connected with camshaft 10, cam 3 is arranged on the center of lower house 2, lower house 2 inner circumferential is provided with six dead slot bodies 11 around cam 3 position, it is inner that piezoelectric generating mechanism is arranged on dead slot body 11, piezoelectric generating mechanism is primarily of roller 5, pin 6, push rod 7, flexible member 8 and piezoelectric pile 9 form, wherein piezoelectric pile 9 is arranged on the bottom of lower house 2 overhead cell body 11, flexible member 8 presses piezoelectric pile 9, flexible member 8 is connected with push rod 7, push rod 7 top connects a roller 5 by pin 6, roller 5 is subject to the elastic force of flexible member 8 and center cams 3 surface is inconsistent.

As Fig. 2, this device top is provided with upper shell 1, upper shell 1 inside is provided with and position on lower house 2 and all consistent dead slot body 11 of quantity, and upper shell 1 center is provided with a circular hole suitable with camshaft 10, camshaft 10 is connected with utilizing ball bearing 4 between upper shell 1 and lower house 2, upper shell 1 is bolted through camshaft and lower house, dead slot body position and piezoelectric generating mechanism position are consistent, cam 3 and piezoelectric generating mechanism are embedded between upper shell 1 and lower house 2, cam 3 and piezoelectric generating mechanism are fixed.

Flexible member in this embodiment adopts elastomeric material, its compressive deformation is larger, when not stressing, strain recovers fast and long service life, the main component of its elastic element 8 can also be spring or hydraulic means, the main component of piezoelectric pile 9 is piezoelectric, and piezoelectric can produce voltage when compressive deformation.

During the work of rotary piezoelectric generator device, camshaft 10 connects external rotational force square, the engine such as rotated, windmill, joystick, the rotating mechanisms etc. such as wheel, because cam 3 is connected with camshaft 10, the rotating band moving cam 3 of camshaft 10 rotates, along with the rotation of cam 3, replaced by convex portion gradually with the base circle portion of the roller contact in piezoelectric generating mechanism, the convex portion pushing rolling wheels 5 of cam 3 moves, roller 5 promotes push rod 7 and moves to the direction of piezoelectric pile 9, push rod 7 promotes flexible member 8 makes it be out of shape, and pressure is passed to piezoelectric pile 9, piezoelectric forced compression distortion in piezoelectric pile 9 produces electric energy, when the highest salient position of projection on cam 3 and roller contact, piezo-electric device stress deformation is maximum.

Now, cam 3 continues along with camshaft 10 rotates, the convex portion contacted with roller 5 gradually replace by base circle portion, in this process, cam 3 convex portion moves away from roller, and now under the resilient force of flexible member 8, push rod 7 is pushed to cam 3 direction and moves, push rod pushing rolling wheels moves to cam 3 direction, until cam 3 moves to base circle position.Now, because the strain of flexible member discharges, piezoelectric pile 9 stress deformation reduces gradually, until recover reset condition.

Along with the continuous rotation of camshaft 10, band moving cam 3 rotates, and piezoelectric pile 9 constantly repeats deformation and recovery process, constantly produces electric energy.

External rotational force square in this device can from different external equipments, realize the slitless connection with other rotating mechanism by the size of modifier and the inner number of increase and decrease piezo-electric device, reliable operation and the life-span long.

Claims (7)

1. a rotary piezoelectric generator device, it is characterized in that: comprise lower house (2), cam (3), camshaft (10) and piezoelectric generating mechanism, described cam (3) is arranged on the center of lower house (2), described camshaft (10) is arranged on the center of cam (3), band moving cam (3) rotates, described piezoelectric generating mechanism comprises push rod (7), flexible member (8) and piezoelectric pile (9), some piezoelectric generating mechanisms are arranged on the inside of lower house (2) around the circumference of cam (3), described flexible member (8) contacts with piezoelectric pile (9) and pressed against piezoelectric pile (9), described push rod (7) one end is connected with flexible member (8), the other end and cam (3) surface contact.
2. rotary piezoelectric generator device according to claim 1, it is characterized in that: in described lower house (2), cam (3) circumference is provided with the dead slot body (11) consistent with piezoelectric generating mechanism quantity, described piezoelectric pile (9) and flexible member (8) are arranged in dead slot body (11), described piezoelectric pile (9) and flexible member (8) are arranged in the dead slot body (11) of lower house (2), and wherein piezoelectric pile (9) is arranged on dead slot body (11) bottom position.
3. rotary piezoelectric generator device according to claim 1 and 2, it is characterized in that: described rotary piezoelectric generator device also comprises upper shell (1), described upper shell (1) is provided with the dead slot body (11) consistent with piezoelectric generating mechanism quantity, upper shell (1) center is provided with a circular hole, described upper shell (1) is bolted through camshaft (10) and lower house (2), is fixed on by piezoelectric generating mechanism in dead slot body (11).
4. rotary piezoelectric generator device according to claim 1, it is characterized in that: described piezoelectric generating mechanism also comprises roller (5) and pin (6), described roller (5) is connected with push rod (7) by pin (6), and roller (5) is conflicted on cam (3) surface.
5. rotary piezoelectric generator device according to claim 1, is characterized in that: described flexible member (8) is rubber, spring or hydraulic means.
6. rotary piezoelectric generator device according to claim 1, is characterized in that: the composition of described piezoelectric pile (9) is piezoelectric.
7. rotary piezoelectric generator device according to claim 1, is characterized in that: described upper shell (1), be provided with ball bearing (4) between lower house (2) and camshaft (10).
CN201510820104.1A 2015-11-24 2015-11-24 Rotary type piezoelectric generator apparatus CN105406764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510820104.1A CN105406764A (en) 2015-11-24 2015-11-24 Rotary type piezoelectric generator apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510820104.1A CN105406764A (en) 2015-11-24 2015-11-24 Rotary type piezoelectric generator apparatus

Publications (1)

Publication Number Publication Date
CN105406764A true CN105406764A (en) 2016-03-16

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CN201510820104.1A CN105406764A (en) 2015-11-24 2015-11-24 Rotary type piezoelectric generator apparatus

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CN (1) CN105406764A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374685A (en) * 2016-11-03 2017-02-01 吉林大学 Integrated sensing-actuation-energy recovery device and brake system
CN108869148A (en) * 2018-05-28 2018-11-23 中国石油天然气股份有限公司 Down-hole electric generating apparatus and layered water filler
CN109546889A (en) * 2018-11-28 2019-03-29 厦门大学 A kind of piezoelectric type energy collection device of time-sharing multiplex
CN108869148B (en) * 2018-05-28 2020-11-03 中国石油天然气股份有限公司 Underground power generation device and separate-layer water injection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050269907A1 (en) * 2004-06-08 2005-12-08 Erickson David J Power generator employing piezoelectric materials
US20130069487A1 (en) * 2011-03-27 2013-03-21 Ocean Energy Management Limited Electrical energy generator using piezoelectric crystals
DE102013204102A1 (en) * 2013-03-11 2014-09-11 Siemens Aktiengesellschaft Electricity generation by electromechanical conversion
CN204304834U (en) * 2014-09-17 2015-04-29 扬州大学 Symmetric type wind power piezoelectric generation device
CN104728067A (en) * 2015-03-30 2015-06-24 苏州攀特电陶科技股份有限公司 Piezoelectric type energy collecting system of car body damper
CN205232064U (en) * 2015-11-24 2016-05-11 南京工业职业技术学院 Rotation type piezoelectric generator device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050269907A1 (en) * 2004-06-08 2005-12-08 Erickson David J Power generator employing piezoelectric materials
US20130069487A1 (en) * 2011-03-27 2013-03-21 Ocean Energy Management Limited Electrical energy generator using piezoelectric crystals
DE102013204102A1 (en) * 2013-03-11 2014-09-11 Siemens Aktiengesellschaft Electricity generation by electromechanical conversion
CN204304834U (en) * 2014-09-17 2015-04-29 扬州大学 Symmetric type wind power piezoelectric generation device
CN104728067A (en) * 2015-03-30 2015-06-24 苏州攀特电陶科技股份有限公司 Piezoelectric type energy collecting system of car body damper
CN205232064U (en) * 2015-11-24 2016-05-11 南京工业职业技术学院 Rotation type piezoelectric generator device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374685A (en) * 2016-11-03 2017-02-01 吉林大学 Integrated sensing-actuation-energy recovery device and brake system
CN108869148A (en) * 2018-05-28 2018-11-23 中国石油天然气股份有限公司 Down-hole electric generating apparatus and layered water filler
CN108869148B (en) * 2018-05-28 2020-11-03 中国石油天然气股份有限公司 Underground power generation device and separate-layer water injection device
CN109546889A (en) * 2018-11-28 2019-03-29 厦门大学 A kind of piezoelectric type energy collection device of time-sharing multiplex

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Application publication date: 20160316