CN202019319U - Power generation device for lamp switch based on hollow piezoelectric transducer - Google Patents

Power generation device for lamp switch based on hollow piezoelectric transducer Download PDF

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Publication number
CN202019319U
CN202019319U CN2011200919408U CN201120091940U CN202019319U CN 202019319 U CN202019319 U CN 202019319U CN 2011200919408 U CN2011200919408 U CN 2011200919408U CN 201120091940 U CN201120091940 U CN 201120091940U CN 202019319 U CN202019319 U CN 202019319U
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piezoelectric
hollow
upper shell
pzt
piezoelectric transducer
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阚君武
王淑云
马继杰
曾平
程光明
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Zhejiang Normal University CJNU
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Zhejiang Normal University CJNU
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Abstract

The utility model relates to a power generation device for a lamp switch based on a hollow piezoelectric transducer and belongs to the technical field of new energy and power generation. A connection pin shaft is fixed at the end of the upper shell; a circuit board is fixedly connected with a support in the upper shell; a circuit board is fixedly connected with an interior support of the upper shell, a pressing board is fixedly connected with the interior of the upper shell through a screw; a switch button is arranged on the upper surface of the upper shell; a connection lug is arranged on the lower shell; a guide board is fixedly connected with the lower shell through a screw; a force application pin shaft is in sliding connection with the interior of the guide board; 1 to 10 hollow piezoelectric transducers are positioned in the lower shell; the pressing board is pressure-welded with the force application pin shaft; the force application pin shaft is adhered to a conductive rubber pressing block; the conductive rubber pressing block is adhered to piezoelectric vibrators of the hollow piezoelectric transducers; and the upper shell and the lower shell are hinged with a hole in the connection lug through the connection pin shaft. The power generation device has the advantages of pressing the button on the shell to drive the shell and make the piezoelectric vibrators generate power and finishing switch control simultaneously, so the power generation device obeys the operation habit of the lamp switch.

Description

Lamp switch Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on the hollow PZT (piezoelectric transducer)
Technical field
The utility model belongs to new forms of energy and technical field of power generation, is specifically related to a kind of lamp switch Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on the hollow PZT (piezoelectric transducer), is used for the remote switch for lamps power supply.
Background technology
Utilize the patent of piezoelectric generating device structure electric non-battery remote controller and lamp switch domestic morning application to be arranged, but because of the existence of aspects such as generating device structure and generating capacity certain deficiency and drawback, still manque so far applying.For example, Chinese patent 200520111441.5 and 00817016.9 has been introduced two kinds respectively based on hitting, clashing into the piezoelectric generating device of mode, and Chinese utility model patent 200520008424.9 has been introduced a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT) and remote controller thereof that utilizes button for the piezoelectric element application of force.In the above-mentioned patent, what utilize all is single piezoelectric vibrator, the energy that its generating operation produces can't satisfy the power demand of remote controller emission system at all, and can only adopt the method power supply of repeatedly generating storage accumulation, does not meet the operating habit of remote controller, especially fixed lamp switch.Therefore, the inventor had once proposed the remote controller of two kinds of dial type piezoelectric self-powersupplies: Chinese invention patent 200810051579.9,200810051157.1, but Development Practice subsequently shows that the generating operation scheme of above-mentioned self-powered remote controller is difficult to realize: piezoelectric vibrator also resets the button of patent 200810051579.9 smoothly, reliability is relatively poor because of the guide and limit that lacks necessity can't be stirred reliably; Patent 200810051157.1 and 200820072434.2 is stirred cantilever beam piezoelectric vibrators by rotating moving tooth, its structure and motion process complexity, and small fretting wear can cause moving tooth to lose efficacy, and manufacturing cost is higher.Deficiency at above-mentioned dial type piezoelectric generating device, the inventor proposes a kind of new dial type Blast Furnace Top Gas Recovery Turbine Unit (TRT) once more: Chinese patent 201010165882.9, practice shows, this structure Blast Furnace Top Gas Recovery Turbine Unit (TRT) is easy to processing and fabricating, and can produces enough electric energy and be used for remote controller emission system power supply, weak point is the control that is difficult to realize a plurality of light fixtures, can't establish a plurality of buttons, a switch only can be controlled a lamp, and exist campaign-styled trigger mechanism parts to lose efficacy equally and stir problems such as producing noise in the process because of fretting wear.
Summary of the invention
The utility model provides a kind of lamp switch Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on the hollow PZT (piezoelectric transducer), be used for fixing formula remote switch for lamps power supply, with solve existing piezo-electric generating scheme because of generating capacity a little less than, operation inconvenience or unreasonable structure etc. are former thereby problem such as be difficult to apply.
The technical scheme that the utility model is taked is: the fixedly connected bearing pin in upper shell end, circuit board is fixedlyed connected with the inner bearing of upper shell, pressing plate is connected with the upper shell internal fixation by screw, upper surface is equipped with shift knob, lower house is provided with engaging lug, guide plate is fixedlyed connected with lower house by screw, application of force bearing pin is connected with the guide plate slides within, 1-10 hollow PZT (piezoelectric transducer) is positioned at lower house, pressing plate and the crimping of application of force bearing pin, application of force bearing pin and conductive rubber briquetting are bonding, piezoelectric vibrator in conductive rubber briquetting and the hollow PZT (piezoelectric transducer) is bonding, and upper shell is hinged by the hole that is connected on bearing pin and the engaging lug with lower house.
Described hollow PZT (piezoelectric transducer) is made of conductive rubber support ring, two circular metal plates and two circular piezoelectric wafers, and described piezoelectric chip is adhered on the described sheet metal and constitutes piezoelectric vibrator, and sheet metal is embedded in the annular groove of conductive rubber support ring; The sheet metal of different hollow PZT (piezoelectric transducer)s is crossed lead one connection, and the piezoelectric chip of same hollow PZT (piezoelectric transducer) is connected by the hole of lead two on sheet metal; Sheet metal and piezoelectric chip are connected with power circuit on the circuit board through lead group one again, and this power circuit links to each other with shift knob by lead group two again.
For the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that the utility model proposed based on the hollow PZT (piezoelectric transducer), in the used piezoelectric vibrator diameter of pottery and thickness excessive or too small all can be that energy output reduces, have best radius ratio: the ratio and the thickness ratio of piezoelectric chip radius and metallic plate radius: the ratio of piezoelectric chip thickness and piezoelectric vibrator gross thickness makes the energy output maximum.When ceramic wafers diameter and metallic plate equal diameters, ceramic wafers edge is subjected to tension stress and the core compression chord, is just producing respectively, secondary electric charge, cancels each other, so make the generating capacity reduction.The optimum radius ratio of used piezoelectric vibrator and thickness ratio are by energy output
Figure 860887DEST_PATH_IMAGE001
Formula is tried to achieve: promptly
Figure 648322DEST_PATH_IMAGE002
,
Figure 889947DEST_PATH_IMAGE003
The formula kind,
Figure 555284DEST_PATH_IMAGE004
Be energy output,
Figure 559274DEST_PATH_IMAGE005
Be defined as radius ratio,
Figure 284653DEST_PATH_IMAGE006
,
Figure 747996DEST_PATH_IMAGE007
Be respectively metal substrate radius and piezoelectric chip radius;
Figure 721418DEST_PATH_IMAGE008
, Be defined as the thickness ratio,
Figure 476195DEST_PATH_IMAGE010
,
Figure 817047DEST_PATH_IMAGE011
Be respectively piezoelectric chip and metal substrate thickness;
Figure 699552DEST_PATH_IMAGE012
Electromechanical coupling factor for piezoelectric;
Figure 675205DEST_PATH_IMAGE013
,
Figure 476808DEST_PATH_IMAGE014
,
Figure 914742DEST_PATH_IMAGE015
,
Figure 227037DEST_PATH_IMAGE016
,
Figure 558661DEST_PATH_IMAGE017
Be respectively the Young's modulus of substrate and piezoelectric, ,
Figure 226370DEST_PATH_IMAGE019
Be respectively the Poisson's ratio of substrate and piezoelectric;
Figure 575312DEST_PATH_IMAGE020
Figure 528486DEST_PATH_IMAGE021
With Be respectively equivalent bending stiffness, equivalent Young's modulus and the equivalent Poisson's ratio of piezoelectricity-metal composite layer;
Figure 84419DEST_PATH_IMAGE023
Be the suffered external force of piezoelectric vibrator.
In the utility model, when pressing described button, upper shell connected and drive by button and inner circuit board and pressing plate rotates along the end bearing pin, simultaneously, the pressing plate that rotates with upper shell promotes the motion of application of force bearing pin, and application of force bearing pin forces piezoelectric vibrator to occur bending and deformation by the conductive rubber briquetting again; With the lasting rotation of upper shell, the deflection of piezoelectric vibrator increases gradually, and the pressing plate in upper shell touches the guide plate on the lower house, and this is a power generation process; After discharging button, external force removal, button disconnects, and piezoelectric vibrator recovers distortion and push to housing by conductive rubber briquetting, application of force bearing pin and pressing plate to return back to initial position in the effect of himself elastic force.
Characteristics of the present utility model and advantage are:
Figure 735586DEST_PATH_IMAGE024
Used casement transducer is formed by two piezoelectric vibrator serial connections, and Blast Furnace Top Gas Recovery Turbine Unit (TRT) is in series by a plurality of hollow transducers, need not any auxiliary body each piezoelectric vibrator is generated electricity simultaneously;
Figure 41803DEST_PATH_IMAGE025
Used piezoelectric vibrator self structure adopts optimization method to obtain, and energy converting between mechanical efficient is higher;
Figure 497055DEST_PATH_IMAGE026
Adopt conductive rubber to make the support ring of the fixing metal substrate of piezoelectric vibrator and be used for the briquetting of transferring power between transducer, that machinery and circuit connect is simple, piezoelectric vibrator is not fragile, operate noiselessness;
Figure 22976DEST_PATH_IMAGE027
Make the piezoelectric vibrator generating by the button drive housing of pushing on the housing, and finish switch control simultaneously, meet the operating habit of lamp switch.
Description of drawings
Fig. 1 is a structural representation of the present utility model, is the structural representation under nature;
Fig. 2 is the vertical view of the Blast Furnace Top Gas Recovery Turbine Unit (TRT) part in the utility model;
Fig. 3 is the structural profile schematic diagram of the utility model after power generation process finishes.
Embodiment
The fixedly connected bearing pin 102 in upper shell 1 end, circuit board 5 is fixedlyed connected with the inner bearing 101 of upper shell, pressing plate 2 is connected with upper shell 1 internal fixation by screw, upper surface is equipped with shift knob 3, lower house 7 is provided with engaging lug 701, guide plate 12 is fixedlyed connected with lower house 7 by screw, application of force bearing pin 13 is connected with guide plate 12 slides within, 1-10 hollow PZT (piezoelectric transducer) 8 is positioned at lower house 7, pressing plate 2 and 13 crimping of application of force bearing pin, application of force bearing pin 13 is bonding with conductive rubber briquetting 10, piezoelectric vibrator in conductive rubber briquetting and the hollow PZT (piezoelectric transducer) 8 is bonding, and upper shell 1 is hinged with the hole on the engaging lug 701 by being connected bearing pin 102 with lower house 7.
Described hollow type PZT (piezoelectric transducer) 8 is made of conductive rubber support ring 801, two circular metal plates 802 and two circular piezoelectric wafers 803, described piezoelectric chip 803 is adhered on the described sheet metal 802 and constitutes piezoelectric vibrator, and sheet metal 802 is embedded in the annular groove of conductive rubber support ring 801; The sheet metal 802 of different hollow PZT (piezoelectric transducer)s connects by lead 1, and the piezoelectric chip 803 of same hollow PZT (piezoelectric transducer) is connected by the hole 804 of lead 2 11 on sheet metal 801; Sheet metal 802 and piezoelectric chip 803 are connected with power circuit on the circuit board 5 through lead group 1 again, and this power circuit links to each other with shift knob 3 by lead group 24 again.
For the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that the utility model proposed based on the hollow PZT (piezoelectric transducer), in the used piezoelectric vibrator diameter of pottery and thickness excessive or too small all can be that energy output reduces, have best radius ratio: the ratio and the thickness ratio of piezoelectric chip radius and metallic plate radius: the ratio of piezoelectric chip thickness and piezoelectric vibrator gross thickness makes the energy output maximum.When ceramic wafers diameter and metallic plate equal diameters, ceramic wafers edge is subjected to tension stress and the core compression chord, is just producing respectively, secondary electric charge, cancels each other, so make the generating capacity reduction.The optimum radius ratio of used piezoelectric vibrator and thickness ratio are by energy output
Figure 713721DEST_PATH_IMAGE001
Formula is tried to achieve: promptly
Figure 378838DEST_PATH_IMAGE002
,
Figure 4992DEST_PATH_IMAGE003
The formula kind, Be energy output,
Figure 247065DEST_PATH_IMAGE005
Be defined as radius ratio,
Figure 403240DEST_PATH_IMAGE006
,
Figure 324929DEST_PATH_IMAGE007
Be respectively metal substrate radius and piezoelectric chip radius;
Figure 556933DEST_PATH_IMAGE008
,
Figure 589480DEST_PATH_IMAGE009
Be defined as the thickness ratio,
Figure 600162DEST_PATH_IMAGE010
,
Figure 194216DEST_PATH_IMAGE011
Be respectively piezoelectric chip and metal substrate thickness; Electromechanical coupling factor for piezoelectric; ,
Figure 862944DEST_PATH_IMAGE014
,
Figure 126435DEST_PATH_IMAGE015
,
Figure 70383DEST_PATH_IMAGE016
,
Figure 585678DEST_PATH_IMAGE017
Be respectively the Young's modulus of substrate and piezoelectric, ,
Figure 628513DEST_PATH_IMAGE019
Be respectively the Poisson's ratio of substrate and piezoelectric;
Figure 558291DEST_PATH_IMAGE020
Figure 237797DEST_PATH_IMAGE021
With
Figure 454408DEST_PATH_IMAGE022
Be respectively equivalent bending stiffness, equivalent Young's modulus and the equivalent Poisson's ratio of piezoelectricity-metal composite layer; Be the suffered external force of piezoelectric vibrator.
Piezoelectric vibrator can be bonding two piezoelectric chips of metal substrate and constitutes three-decker.
When external force pull switch button 3 moves downward, button 3 connect and drive upper shell 1 with and inner circuit board 5 and pressing plate 2 102 rotate around the shaft together; Simultaneously, pressing plate 2 promotes 13 motions of application of force bearing pin, and forces the piezoelectric vibrator on the hollow type PZT (piezoelectric transducer) 8 to occur bending and deformation by conductive rubber briquetting 10, and then converts mechanical energy to electric energy; The electric energy that is produced is delivered to circuit board 5 through lead group 6; When described upper shell 1 turn to make pressing plate 2 and annular protrusion on the guide plate 12 contact fully after, as shown in Figure 3, upper shell 1 stops operating, power generation process finishes; Simultaneously, the power circuit on the circuit board 4 sends corresponding remote controller control signal by the position judgment to the shift knob pressed, has promptly finished the overall process of generating and signal emission synchronously.After external force removes from switch button 3, piezoelectric vibrator on the hollow type PZT (piezoelectric transducer) 8 and conductive rubber briquetting 10 return to the original form under the effect of himself elastic force and promote upper shell 1 counter-rotating counterclockwise, state before being reset to triggering, as shown in Figure 1.
In the utility model, the energy output of a pressing operation is the independent energy output sum of each piezoelectric vibrator, and the energy output of single piezoelectric vibrator is calculated and got by following formula, that is:
Figure 119186DEST_PATH_IMAGE004
In the formula,
Figure 835339DEST_PATH_IMAGE005
Be called the diameter ratio,
Figure 424233DEST_PATH_IMAGE006
,
Figure 75794DEST_PATH_IMAGE007
Be respectively metal substrate radius and piezoelectric chip radius; ,
Figure 1473DEST_PATH_IMAGE009
Be called the thickness ratio,
Figure 940479DEST_PATH_IMAGE010
,
Figure 762941DEST_PATH_IMAGE011
Be respectively the thickness of piezoelectric chip and metal substrate;
Figure 653143DEST_PATH_IMAGE012
Electromechanical coupling factor for piezoelectric;
Figure 976677DEST_PATH_IMAGE013
, ,
Figure 265019DEST_PATH_IMAGE015
Be modular ratio,
Figure 143982DEST_PATH_IMAGE016
,
Figure 775601DEST_PATH_IMAGE017
Be respectively the Young's modulus of substrate and piezoelectric,
Figure 298986DEST_PATH_IMAGE018
,
Figure 587885DEST_PATH_IMAGE019
Be respectively the Poisson's ratio of substrate and piezoelectric;
Figure 455609DEST_PATH_IMAGE020
Figure 120946DEST_PATH_IMAGE021
With Be respectively equivalent bending stiffness, equivalent Young's modulus and the equivalent Poisson's ratio of piezoelectricity-metal composite layer;
Figure 722752DEST_PATH_IMAGE023
Be the suffered external force of piezoelectric vibrator.

Claims (2)

1. lamp switch Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on the hollow PZT (piezoelectric transducer), it is characterized in that: the fixedly connected bearing pin in upper shell end, circuit board is fixedlyed connected with the inner bearing of upper shell, pressing plate is connected with the upper shell internal fixation by screw, upper surface is equipped with shift knob, lower house is provided with engaging lug, guide plate is fixedlyed connected with lower house by screw, application of force bearing pin is connected with the guide plate slides within, 1-10 hollow PZT (piezoelectric transducer) is positioned at lower house, pressing plate and the crimping of application of force bearing pin, application of force bearing pin and conductive rubber briquetting are bonding, piezoelectric vibrator in conductive rubber briquetting and the hollow PZT (piezoelectric transducer) is bonding, and upper shell is hinged by the hole that is connected on bearing pin and the engaging lug with lower house.
2. the lamp switch Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on the hollow PZT (piezoelectric transducer) according to claim 1, it is characterized in that, the hollow PZT (piezoelectric transducer) is made of conductive rubber support ring, two circular metal plates and two circular piezoelectric wafers, described piezoelectric chip is adhered on the described sheet metal and constitutes piezoelectric vibrator, and sheet metal is embedded in the annular groove of conductive rubber support ring; The sheet metal of different hollow PZT (piezoelectric transducer)s is crossed lead one connection, and the piezoelectric chip of same hollow PZT (piezoelectric transducer) is connected by the hole of lead two on sheet metal; Sheet metal and piezoelectric chip are connected with power circuit on the circuit board through lead group one again, and this power circuit links to each other with shift knob by lead group two again.
CN2011200919408U 2011-04-01 2011-04-01 Power generation device for lamp switch based on hollow piezoelectric transducer Expired - Fee Related CN202019319U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158126A (en) * 2011-04-01 2011-08-17 浙江师范大学 Generating set for lamp switches based on hollow piezoelectric transducer
CN102661424A (en) * 2012-06-01 2012-09-12 浙江师范大学 Plunger piston type piezoelectric valve based on multi-vibrator tandem drive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158126A (en) * 2011-04-01 2011-08-17 浙江师范大学 Generating set for lamp switches based on hollow piezoelectric transducer
CN102661424A (en) * 2012-06-01 2012-09-12 浙江师范大学 Plunger piston type piezoelectric valve based on multi-vibrator tandem drive
CN102661424B (en) * 2012-06-01 2013-11-20 浙江师范大学 Plunger piston type piezoelectric valve based on multi-vibrator tandem drive

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Granted publication date: 20111026

Termination date: 20120401