CN209497404U - U-shaped beam element piezoelectric generator - Google Patents

Abstract

The utility model discloses one kind with U-shaped beam element piezoelectric generator, wherein, U-shaped beam element piezoelectric generator includes rotor assembly and an at least vibrator component, the rotor assembly is rotated relative to the vibrator component, the rotor assembly includes rotary shaft and at least one first magnet, first magnet is located at around the rotary shaft, the vibrator component includes at least one U-shaped beam, the surface of the U-shaped beam is equipped with piezoelectric patches, the free end of the U-shaped beam is additionally provided with the second magnet, the rotary shaft rotation, drive first magnet opposite with second magnet, first magnet drives second magnet movement, drive the free end motion of the U-shaped beam, the piezoelectric patches is set to generate deformation.Technical solutions of the utility model use the design of U-shaped beam, can securely and reliably charge to various electronic equipments, more efficient converts mechanical energy into electric energy.

Description

U-shaped beam element piezoelectric generator

Technical field

The utility model relates to technical field of generators, in particular to a kind of U-shaped beam element piezoelectric generator.

Background technique

In the modern life, electronic equipment is essential communication tool in people's daily life, because of electronic equipment Battery capacity be all limited, so needing to charge when dead battery capability.In the field work of not power supply or long-distance In travelling, electronic equipment situation out of power happens occasionally, this just travels outdoors to people or field work brings inconvenience.So And the mechanical energy in environment is ubiquitous, realizes that the generator of electromechanical transformation can play these collection of energy using piezoelectric effect Come, continually provides energy for electronic device.And presently used electromagnetic generator energy transition density is not high, if with Realize that the generator of electromechanical transformation replaces traditional electromagnetic generator using piezoelectric effect, it more efficient will turn mechanical energy It is changed to electric energy, to reduce cost of electricity-generating.

Utility model content

The main purpose of the utility model is to provide a kind of U-shaped beam element piezoelectric generator, it is intended to which safe and reliable giving is each The electronic equipments charging such as kind toy, mobile phone, more efficient converting wind energy and wave energy are electric energy.

To achieve the above object, U-shaped beam element piezoelectric generator provided by the utility model includes rotor assembly and at least One vibrator component, the rotor assembly are rotated relative to the vibrator component, and the rotor assembly includes rotary shaft and at least one First magnet, first magnet are located at around the rotary shaft, and the vibrator component includes at least one U-shaped beam, the U-shaped beam Surface be equipped with piezoelectric patches, the free end of the U-shaped beam is additionally provided with the second magnet, and the rotary shaft rotation drives described first Magnet is opposite with second magnet, and first magnet drives second magnet movement, drives the free end of the U-shaped beam Movement makes the piezoelectric patches generate deformation.

Optionally, the vibrator component further includes pedestal, and the U-shaped beam includes fixed part, top portion, bending part and terminal Portion, the fixed part are fixed with the pedestal and connect, and the top portion is from one end of fixed part to the side of the rotary shaft To linear extension, the one end of the bending part from top portion far from fixed part is bent to the direction of the parallel rotary shaft to be extended, The one end of the terminal part from bending part far from top portion is bent to the direction far from rotary shaft to be extended.The top portion, bending Portion and/or the surface of the terminal part are equipped with piezoelectric patches, and second magnet is embedded in the free end of the terminal part.

Optionally, second magnet is opposite with first magnet embedded in the terminal part free end.

Optionally, the vibrator component includes multiple U-shaped beams, and multiple U-shaped beams are set along the circumferentially-spaced of the pedestal It sets, the vibrator component further includes pedestal, and the U-shaped beam is fixedly connected with the pedestal, and the fixed part is fastened on institute It states in pedestal mounting groove.

Optionally, the rotor assembly further includes at least one set of turntable, and the turntable is sheathed on the rotary shaft, and with institute It states rotary shaft to be fixedly connected, the turntable is equipped with an at least mounting hole, and first magnet is embedded at the mounting hole.

Optionally, the turntable includes multiple mounting holes, the multiple mounting hole being provided at circumferentially spaced along the turntable, One first magnet is embedded in a mounting hole.

Optionally, the relationship of the thickness h 2 of the thickness h 1 and turntable of first magnet are as follows: h1≤h2.

Optionally, the rotor assembly includes at least one set of turntable, and the turntable is fixed in the rotary shaft, every group of institute Turntable is stated between two vibrator components.

Optionally, the U-shaped beam element piezoelectric generator further includes shell, and the shell and the pedestal are fixed company It connects, the U-shaped beam element piezoelectric generator further includes end cap and bearing, and the end cap is fixedly connected with the shell, the end Lid center offers mounting hole, and the bearing is installed on the mounting hole, and is fixedly connected with the end cap, the rotation axle portion Divide and is fixedly connected across the bearing, and with the inner ring of the bearing.

Optionally, the rotor assembly further includes at least one set of turntable, and the turntable is sheathed on the rotary shaft, and with institute It states rotary shaft and is fixedly connected by keyway with snap ring, the turntable is equipped with an at least mounting hole, and first magnet is embedded in institute State mounting hole.

The technical solution of the utility model passes through setting vibrator component and rotor assembly, and in the U type beam table of vibrator component Piezoelectric patches is arranged in face, and the second magnet is arranged in the free end of U-shaped beam, and the first magnet is arranged in the turntable outer rim of rotor assembly. When needing using U-shaped beam element piezoelectric generator, rotary shaft, the second magnet of the U-shaped beam free end of the first magnet face are rotated When, it is generated when the magnetic pole of the first magnet and the second magnet is that the same sex is oppositely arranged, between the first magnet and the second magnet mutual The magnetic force of repulsion, so that the second magnet drives the free end of U-shaped beam move to far from the direction of the first magnet, when the first magnet and When the magnetic pole of second magnet is that the opposite sex is oppositely arranged, the magnetic force to attract each other is generated between the first magnet and the second magnet, thus Second magnet drives the free end of U-shaped beam to move to the direction close to the first magnet, at this point, the piezoelectricity on U-shaped beam surface is arranged in Piece is by the elastically-deformable pressing of U-shaped beam, and deformation occurs for piezoelectric patches, so that electric current is generated, when the first magnet is driven by rotary shaft When leaving the magnetic force range of the second magnet, U-shaped beam restPoses, and U-shaped beam presses piezoelectric patches again during recovery, Deformation occurs for piezoelectric patches, to generate electric current again.In this way, technical solutions of the utility model use the design of U-shaped beam, Ke Yian It reliably charges entirely to various electronic equipments, more efficient converts mechanical energy into electric energy.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the top view of this U-shaped beam element piezoelectric generator；

Fig. 2 be Fig. 1 in U-shaped one embodiment of beam element piezoelectric generator along A-A to cross-sectional view；

Fig. 3 is the structural schematic diagram of U-shaped beam element piezoelectric generator vibrator component and rotor assembly；

Fig. 4 is the structural schematic diagram of U-shaped beam element piezoelectric generator vibrator component；

Fig. 5 is the structural schematic diagram of U-shaped beam element piezoelectric generator rotor assembly；

Fig. 6 is U-shaped beam element piezoelectric generator rotor assembly in Fig. 5 along the cross-sectional view of B-B direction；

Fig. 7 is the structural schematic diagram of U-shaped beam element piezoelectric generator turntable.

Fig. 8 is the structural schematic diagram of U-shaped beam element piezoelectric generator shell and end cap.

Drawing reference numeral explanation:

Label	Title	Label	Title
				100	U-shaped beam element piezoelectric generator	24	Piezoelectric patches
10	Rotor assembly	25	Bending part
				11	Rotary shaft	27	Top portion
12	Snap ring	29	Fixed part
				13	Bearing	30	Pedestal
14	Card slot	31	Mounting groove
				15	First magnet mounting hole	33	Base projection portion
16	Cyclic annular tabletting	40	Vibrator component
				17	Turntable	50	Shell
18	Keyway	51	First recessed portion
				19	First magnet	52	Second recessed portion
20	U-shaped beam	60	End cap
				21	Terminal part	61	End cap lug boss
22	Second magnet	62	Mounting hole
				23	Second magnet mounting hole

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model Protection scope within.

The utility model proposes a kind of U-shaped beam element piezoelectric generators 100.

Referring to figs. 1 to Fig. 8, technical solutions of the utility model propose a kind of U-shaped beam element piezoelectric generator 100, this is U-shaped Beam element piezoelectric generator 100 includes rotor assembly 10 and an at least vibrator component 40, and rotor assembly 10 is relative to vibrator component 40 rotations, rotor assembly 10 include that rotary shaft 11 and at least one first magnet 19, the first magnet 19 are located at around rotary shaft 11, can With understanding, the first magnet 19 can be directly fixed on turntable 17 or be fixedly connected by other means with rotary shaft 11, Vibrator component 40 includes at least one U-shaped beam 20, is equipped with piezoelectric patches 24 on the surface of U-shaped beam 20, the free end of U-shaped beam 20 is also set There is the second magnet 22, rotary shaft 11 rotates, and drives the first magnet 19 and the second magnet 22 opposite, the first magnet 19 drives the second magnetic Body 22 moves, and drives the free end motion of U-shaped beam, and piezoelectric patches 24 is made to generate deformation.

The technical solution of the utility model passes through setting vibrator component 40 and rotor assembly 10, and in the U of vibrator component 40 20 surface of type beam is respectively provided with piezoelectric patches 24, and the second magnet 22, and the turntable in rotor assembly 10 is arranged in the free end of U-shaped beam 20 17 the first magnets 19 of setting.When needing using U-shaped beam element piezoelectric generator 100, rotary shaft 11 is rotated, the first magnet 19 is just When to the second magnet 22 of U-shaped 20 free end of beam, when the magnetic pole of the first magnet 19 and the second magnet 22 is that the same sex is oppositely arranged, Mutually exclusive magnetic force is generated between first magnet 19 and the second magnet 22, so that the second magnet 22 drives oneself of U-shaped beam 20 It is moved from end to the direction far from the first magnet 19, when the magnetic pole of the first magnet 19 and the second magnet 22 is that the opposite sex is oppositely arranged When, the magnetic force to attract each other is generated between the first magnet 19 and the second magnet 22, so that the second magnet 22 drives oneself of U-shaped beam 20 It is moved from end to the direction close to the first magnet 19.At this point, the piezoelectric patches 24 on U-shaped 20 surface of beam is arranged in by U-shaped 20 bullet of beam Property deformation pressing, deformation occurs for piezoelectric patches 24, to generate electric current, when the first magnet 19 leaves second by the drive of rotary shaft 11 When the magnetic force range of magnet 22, U-shaped beam 20 restPoses, and U-shaped beam 20 presses piezoelectric patches 24 again during recovery, Deformation occurs for piezoelectric patches 24, to generate electric current again.In this way, technical solutions of the utility model can be safe and reliable to various Toy or mobile phone charging, can be also used for wind-power electricity generation and ocean wave energy for generating electricity.

It drives rotor assembly 10 that can use spring energy-storage system or gear acceleration system, is driven using elastic deformation or gear Dynamic rotary shaft 11, or by rotating rotary shaft 11 manually, U-shaped beam element piezoelectric generator 100 can also be made to run.

Further, referring to Fig. 3, Fig. 4, vibrator component 40 further includes pedestal 30, and U-shaped beam 20 includes fixed part 29, beginning Portion 27, bending part 25 and terminal part 21, fixed part 29 are fixed with the mounting groove of pedestal 30 and connect, and top portion 27 is from fixed part 29 one end is to rotary axis direction linear extension, and the one end of bending part 25 from top portion 27 far from fixed part 29 is to parallel rotary axes 11 direction bending extends, and the surface of top portion 27, bending part 25 and/or terminal part 21 is equipped with piezoelectric patches 24, the second magnet 22 are set to the free end of terminal part 21.In the present embodiment, 30 outer rim of pedestal is arranged in a ring and is uniformly distributed three protrusions Portion 33, inner edge are arranged in regular polygon, and such setting can make the lug boss for easily making pedestal 30 33 be fixed outside In first recessed portion 51 of shell 50, while the fixed part 29 of U-shaped beam easily being made to be fixed between the positive shape changeable in pedestal inner edge In mounting groove 31 corresponding to edge.Certainly fixed part 29 is sticked in is only one be fixedly connected in the mounting groove 31 of pedestal 30 Kind embodiment, can also be fixedly connected with (not shown) with pedestal 30 for fixed part 29 by bolt, or be arranged in pedestal 30 Boss (not shown), then fixed part 29 is fixed on boss by through hole (not shown), in the protection model of the utility model Within enclosing.It is understood that the at right angles setting of top portion 27, bending part 25 and terminal part 21, such setting can make U-shaped Beam 20 produces more deformations during vibration, thus keep the effect for pressing piezoelectric patches 24 more preferable, U-shaped beam element piezo-electric generating The generating effect of machine 100 is more preferable.Also, piezoelectric patches is respectively provided in the upper and lower surface of top portion 27, bending part 25 and terminal part 21 24 tension and compression that piezoelectric patches 24 can be made to make full use of U-shaped 20 surface of beam strain, to keep generating efficiency higher, certainly consider at Under the premise of this, piezoelectric patches 24 individually can also be set in the outer surface of U-shaped beam 20 or inner surface.And terminal part 21 is additionally provided with Two magnets 22 are arranged what the second magnet 22 can make to generate when the second magnet 22 is by magneticaction in 21 free end of terminal part Torque is bigger, to keep U type 20 deformation effects of beam more preferable, the generating efficiency of U-shaped beam element piezoelectric generator 100 is higher.

Terminal part 21 is equipped with the second magnet 22 inside one end of the first magnet 19.It is arranged in the free end of terminal part 21 It is maximum that the deflection that can make U-shaped beam 20 in vibration processes is arranged such in second magnet 22, to make to press piezoelectric patches 24 Effect is best, and then U-shaped beam element piezoelectric generator 100 has better generating efficiency.

In the present embodiment, the opening of the U-shaped mouth of the U-shaped beam 20 is directed away from the direction of the rotary shaft 11, described The end of the free end of the terminal part 21 is arranged in second magnet 22, and can make on multiple U-shaped beams 20 second is arranged such 22 spacing of magnet maximizes, and avoids also avoiding the end of U-shaped beam 20 because mutually leaning on to obtain excessively close generation interference between the second magnet 22 End 21 in vibration processes it is possible that interfere with each other, and then U-shaped beam element piezoelectric generator 100 have preferably hair Electrical efficiency.

Further, referring to Figure 2 to Figure 4, vibrator component 40 includes multiple U-shaped beams 20, and multiple U-shaped beams 20 are along pedestal 30 It is provided at circumferentially spaced, fixed part 21 is fastened in the mounting groove 31 of pedestal 30.The U being provided at circumferentially spaced on pedestal 30 Type beam 20 can make the arrangement mode of U-shaped beam 20 best, take full advantage of the installation space of pedestal 30, and make U-shaped beam 20 freely Second magnet 22 at end is mutually unaffected.In the present embodiment, fixed part 29 be fastened on pedestal 30 mounting groove 31 it In fixed effect can be made fine, can also be by U-shaped beam alternatively, fixed part 29 is fixedly connected by bolt with pedestal 30 20 is fixed well.

In the present embodiment, referring to 5, Fig. 6, Fig. 7, rotor assembly 10 further includes at least one set of two turntables 17 and a ring Shape tabletting 16, two turntables 17 are sheathed on rotary shaft 11, and are fixedly connected with rotary shaft 11, and it is cyclic annular that one is pressed from both sides among two turntables First magnet 22 of the tabletting 16 to separate two disk peripherals, turntable 17 are equipped with an at least mounting hole 15, the first magnet 19 It is embedded at mounting hole 15.It is additionally provided with keyway 18 on turntable 17, key body (not shown) is additionally provided in rotary shaft 11, passes through keyway 18 With the engaging of key body, one group of two turntable 17 is fixed in rotary shaft 11, and is also arranged with snap ring 12 in rotary shaft 11, is blocked Ring 12 is fastened in the card slot 14 of shaft 11, fixes bearing 12 and turntable 17 in shaft in the axial direction.By first Magnet 19, which is embedded at mounting hole 15, can save space, and turntable 17 is preferably rotated, to make U-shaped beam element pressure Electric generator 100 preferably generates electricity.

Further, the homopolarity of the first magnet 22 on two turntables 17 is opposite, and cyclic annular tabletting 16 is arranged in two turntables 17 the first magnet 22 to separate two disk peripherals avoids the repulsion mistake between the first magnet 22 on two turntables 17 Greatly.

Further, turntable 17 include multiple mounting holes 15, multiple being provided at circumferentially spaced along turntable 17 of mounting hole 15, one A first magnet 19 is embedded at a mounting hole 15.Multiple first magnets 19 are embedded at multiple circumferentially spaced mounting holes 15 The interaction of the first magnet 19 and the second magnet 22 can be made more abundant, so that piezoelectric patches 24 is more efficient.And The quantity of mounting hole 15 is much larger than the quantity of U-shaped beam 20, and U-shaped beam can be made to generate high-frequency vibration, and piezoelectric patches 24 harvests more Energy.Such setting can make the generating effect of U-shaped beam element piezoelectric generator 100 best.

Further, the relationship of the thickness h 2 of the thickness h 1 and turntable 17 of the first magnet 19 are as follows: h1≤h2.That is, first Magnet 19 at most maintains an equal level with turntable 17, accordingly even when the second magnet 22 is installed with the first magnet 19 in the opposite mode of opposite pole When, turntable 17 can also rotate well, do not influence U-shaped beam element piezoelectric generator 100 and work normally.

Referring to Fig.1, Fig. 2 and Fig. 8, further, U-shaped beam element piezoelectric generator 100 further includes shell 50, shell 50 with Pedestal 30 is connected together, specifically, the end of shell 50 is equipped with an at least recessed portion 51, pedestal 30 is equipped with an at least lug boss 33, recessed portion 51 engages with lug boss 33, and pedestal 30 is fixedly connected with shell 50, and U-shaped beam element piezoelectric generator 100 is also Including end cap 60 and bearing 11, end cap 60 is fixedly connected with shell 50, and the surface of end cap 60 offers mounting hole 62, and bearing 13 is pacified It is fixedly connected loaded on mounting hole 62, and with end cap 60, rotary shaft 11 partially passes through bearing 13, and fixes with the inner ring of bearing 13 Connection.In the present embodiment, pass through an at least recessed portion 51 and/or 52 for an at least lug boss 61 for end cap 60 and shell 50 The two is fixedly connected, it certainly can also be by the way that threaded hole be arranged in end cap 60 and shell 50, by spiro connecting piece by the two spiral shell It connects, both is within the protection scope of the present invention.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (9)

1. a kind of U-shaped beam element piezoelectric generator, which is characterized in that the U-shaped beam element piezoelectric generator includes rotor assembly An at least vibrator component, the rotor assembly are rotated relative to the vibrator component, the rotor assembly include rotary shaft and At least one first magnet, first magnet are located at around the rotary shaft, and the vibrator component includes U-shaped beam, the U-shaped beam Surface be equipped with piezoelectric patches, be additionally provided with the second magnet on the U-shaped beam, the rotary shaft rotation, drive first magnet with Second magnet is opposite, and first magnet drives second magnet movement, drives the free end motion of the U-shaped beam, The piezoelectric patches is set to generate deformation；The vibrator component further includes pedestal, and the U-shaped beam includes fixed part, top portion, bending part And terminal part, the fixed part are fixedly connected with the pedestal, the top portion is from one end of fixed part to the rotary shaft Direction linear extension, direction bending of the one end of the bending part from top portion far from fixed part to the parallel rotary shaft are prolonged It stretches, the one end of the terminal part from bending part far from top portion is bent to the direction far from rotary shaft to be extended, the top portion, curved The surface of folding part is equipped with piezoelectric patches, and second magnet is embedded in the free end of the terminal part.

2. U-shaped beam element piezoelectric generator as described in claim 1, which is characterized in that the terminal part surface is equipped with piezoelectricity Piece.

3. U-shaped beam element piezoelectric generator as claimed in claim 1 or 2, which is characterized in that the U-shaped beam is along the pedestal Be provided at circumferentially spaced, the pedestal further includes mounting groove, and the fixed part is fastened in the pedestal mounting groove, described Second magnet is opposite with first magnet embedded in the terminal part free end.

4. U-shaped beam element piezoelectric generator as claimed in claim 3, which is characterized in that the opening of the U-shaped mouth of the U-shaped beam It is directed away from the direction of the rotary shaft, the end of the free end of the terminal part is arranged in second magnet.

5. U-shaped beam element piezoelectric generator as claimed in claim 4, which is characterized in that the rotor assembly further includes at least One group of turntable, the turntable is sheathed on the rotary shaft, and is fixedly connected with the rotary shaft by keyway and snap ring, described turn Disk is equipped with an at least mounting hole, and first magnet is embedded in the mounting hole.

6. U-shaped beam element piezoelectric generator as claimed in claim 5, which is characterized in that one group of turntable includes two phases The same turntable and an annular preform being clipped between two turntables, the annular preform are pacified two turntables are embedded in The first magnet filled in hole separates, and the first magnet in described two turntable mounting holes is opposite one by one.

7. U-shaped beam element piezoelectric generator as claimed in claim 6, which is characterized in that the turntable includes multiple mounting holes, The multiple mounting hole being provided at circumferentially spaced along the turntable, first magnet are embedded in a mounting hole.

8. U-shaped beam element piezoelectric generator as claimed in claim 7, which is characterized in that the thickness h 1 of first magnet with The relationship of the thickness h 2 of the turntable are as follows: h1≤h2.

9. U-shaped beam element piezoelectric generator as claimed in claim 8, which is characterized in that the rotor assembly includes at least one Group turntable, the turntable are fixed in the rotary shaft, and turntable described in every group is located between two vibrator components.