CN103916048A - Piezoelectric vibration generating set and manufacturing method thereof - Google Patents
Piezoelectric vibration generating set and manufacturing method thereof Download PDFInfo
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- CN103916048A CN103916048A CN201310004914.0A CN201310004914A CN103916048A CN 103916048 A CN103916048 A CN 103916048A CN 201310004914 A CN201310004914 A CN 201310004914A CN 103916048 A CN103916048 A CN 103916048A
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 60
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- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 3
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a manufacturing method of a piezoelectric vibration generating set. The method comprises the steps that (1) piezoelectric component sub units are obtained in batches through laser welding, a piezoelectric plate and a free vibrator are mounted on each piezoelectric component sub unit to obtain a piezoelectric component; (2) a base of a hollow structure is provided, and the hollow structure of the base forms a containing cavity; (3) at least two piezoelectric components are provided and mounted on the base in parallel, and the free vibrators of the piezoelectric components are contained in the containing cavity; (4) bottom caps are provided and arranged at the two ends of the base in a covering mode correspondingly; (5) at least two conductive welding pins are provided to be connected with the piezoelectric components and penetrate through one bottom cap to form a conductive electrode. Due to the fact that laser welding is adopted to obtain the piezoelectric component sub units in batches, in the assembling and producing processes, accurate alignment is facilitated, assembling accuracy is improved, production efficiency is improved greatly through batch production, and therefore production cost is lowered. In addition, the invention further discloses the piezoelectric vibration generating set.
Description
Technical field
The present invention relates to micro-energy technology field, relate in particular to a kind of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) and manufacture method thereof.
Background technology
Along with fast development and the application of minute mechanical and electrical system (MEMS, NEMS) technology, drive the development of technology of wireless sensing network, and progressively realize commercial applications in industry, space flight, communication, business, consumption and military field, but still face a very serious problem, how to ensure that the electric energy of these wireless sensing units and mobile communication equipment is supplied with.Traditional method is to use battery, but because the unit component quantity of formation radio sensing network and mobile communication equipment is huge, volume is small, and position disperses, and this just requires, and its power supply device has that volume is little, usefulness is high, easy of integration, unattended operation and do not need the features such as replacing.So, adopt conventional batteries can not meet the demand for development of radio sensing network and mobile communication equipment.
Therefore, a kind of micro-nano system that can be provides the miniature power generating device of confession electric energy reliably and with long-term to arise at the historic moment, it is by the mechanical energy (as vibrations, wind energy, air flow energy etc.) in absorbing environmental and/or heat energy, solar energy, electrostatic energy etc., thereby in corresponding system, produces electric power output.Existing miniature power generating device generally comprises piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), magnetoelectricity shaking generating set or static shaking generating set, no matter which kind of miniature power generating device, using bonding agent to carry out Assembling Production is a kind of conventional means, and this just exists the problem that assembly precision is poor, quality is unstable and assembly cost is high.
Therefore, be necessary to provide a kind of assembly precision is high, production efficiency is high and cost is low piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) with and manufacture method to solve the deficiencies in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), while manufacturing piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) by the method, assembly precision is high, production efficiency is high and cost is low.
Another object of the present invention is to provide a kind of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), in its manufacture process, assembly precision is high, production efficiency is high and cost is low, and this piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) is simple in structure, and volume is little, thin thickness, usefulness are high.
For achieving the above object, technical scheme of the present invention is: the manufacture method that a kind of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) is provided, it comprises the steps: that (1) obtains piezoelectric element subelement in batches by laser welding, installs piezoelectric patches and free oscillator to obtain piezoelectric element described in each on piezoelectric element subelement; (2) provide pedestal, described pedestal is hollow structure, and the hollow structure of described pedestal forms containing cavity; (3) provide at least two described in piezoelectric element, described piezoelectric element is installed on described pedestal in parallel to each other, and the free oscillator of described piezoelectric element is placed in described containing cavity; (4) provide bottom, described bottom correspondence is covered on to the two ends of described pedestal; (5) provide at least two conduction capillaries, thereby described conduction capillary is connected with described piezoelectric element and passes wherein bottom formation conductive electrode described in.
Preferably, above-mentioned steps (1) also specifically comprises the steps: that (11) provide a metallic matrix plate, are provided with at least two metallic matrixes on described metallic matrix plate; (12) provide a cantilever sheet plate, on described cantilever sheet plate, be provided with the cantilever sheet corresponding with described metallic matrix quantity; (13) described cantilever sheet plate correspondence is installed on described metallic matrix plate, and makes described cantilever sheet corresponding one by one with described metallic matrix, and by location structure, described cantilever sheet plate and metallic matrix plate are located; (14) incite somebody to action one to one described at least two cantilever sheet by laser welding and described metallic matrix is disposable is welded as a whole; (15) thus by pelletizing, the corresponding described cantilever sheet being welded as a whole and described metallic matrix are one by one taken off and obtain multiple piezoelectric element subelements; (16) provide some piezoelectric patches, bonding multiple piezoelectric patches on the cantilever sheet of piezoelectric element subelement described in each, and multiple described piezoelectric patches is radial setting; (17) provide multiple free oscillators, bonding free oscillator on the cantilever sheet of described piezoelectric element subelement that is bonded with piezoelectric patches, and described free oscillator correspondence is adhered to the center position with respect to the another side of described piezoelectric patches, thereby form piezoelectric element.
Preferably, described metallic matrix plate structure in the form of sheets, is provided with at least one metallic matrix bar on described metallic matrix plate, on each described metallic matrix bar, is provided with at least two metallic matrixes.
Preferably, described cantilever sheet plate structure in the form of sheets, is provided with at least one cantilever slip on described cantilever sheet plate, on each described cantilever slip, is provided with at least two cantilever sheets.
Preferably, rounded or the square sheet shape of described cantilever sheet, the center position of described cantilever sheet forms central active region, be provided with at least one elastic arm around described central active region, described elastic arm outer has the support portion of structure ringwise, between described central active region, elastic arm and support portion, all there is certain gap, in described gap, be distributed with supporting bridge to connect adjacent central active region, elastic arm and support portion.
Preferably, described elastic arm has several, between adjacent described elastic arm, all has certain gap, is distributed with supporting bridge to connect adjacent described elastic arm in described gap.
Preferably, multiple described piezoelectric patches are and are arranged at radially on described cantilever sheet, and the two ends of multiple described piezoelectric patches are adhered to respectively central active region and the support portion of described cantilever sheet, and multiple described piezoelectric patches is in series or in parallel.
Preferably, described piezoelectric patches is relaxor ferroelectric monocrystal film, piezoelectric fabric film, piezoelectric polymer thin-film, piezo-electricity composite material film, has lead piezoelectric ceramics lead zirconate titanate piezoelectric sheet, PMN-PT piezoelectric patches, leadless piezoelectric ceramics barium titanate sheet, leadless piezoelectric ceramics sheet, niobate lead-free piezoelectric ceramics sheet or a niobium nickel acid potassium piezoelectric patches.
Preferably, described piezoelectric patches is strip or trapezoidal shape.
Preferably, described piezoelectric element is two, and described in two, piezoelectric element correspondence is arranged at the two ends of described pedestal, and described in two, the free oscillator of piezoelectric element is all placed in described containing cavity, and described in two, the free end of the free oscillator of piezoelectric element is connected.
Preferably, described free oscillator is permanent magnet.
Preferably, described permanent magnet is for single or multiple; More specifically, in the time that described free oscillator is multiple permanent magnet, the polarity of the opposite face of multiple described permanent magnets is contrary.
Compared with prior art, due to the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention, obtain in batches piezoelectric element subelement by laser welding, described in each, on piezoelectric element subelement, install piezoelectric patches and free oscillator to obtain piezoelectric element, again at least two piezoelectric elements are installed on pedestal, thereby and bottom be installed on pedestal obtained piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT); Adopt laser welding to obtain in batches piezoelectric element subelement, carrying out, in the process of Assembling Production, being convenient to exactitude position, thereby improve assembly precision, batch production has improved production efficiency greatly, thereby reduces production costs.
Accordingly, the present invention also provides a kind of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) that uses the manufacture method of above-mentioned piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) to manufacture, it comprises pedestal, bottom, at least two piezoelectric elements and at least two conduction capillaries, wherein, described pedestal is hollow structure, and the hollow structure of described pedestal forms containing cavity; Described at least two, piezoelectric element is arranged on described pedestal and is parallel to each other, and the free oscillator of piezoelectric element is placed in described containing cavity described at least two, described conduction capillary is connected with described piezoelectric element and passes wherein bottom described in one and form conductive electrode.
Preferably, described piezoelectric element comprises piezoelectric element subelement, free oscillator and multiple piezoelectric patches, and described piezoelectric element subelement is installed on one end of described pedestal corresponding with described containing cavity; Multiple described piezoelectric patches are a side that is adhered to radially described piezoelectric element subelement; Described free oscillator is adhered to the center position of the another side with respect to described piezoelectric patches of described piezoelectric element subelement, and described free oscillator is placed in described containing cavity.
Preferably, described piezoelectric element subelement comprises cantilever sheet and supports the metallic matrix of described cantilever sheet, on described metallic matrix, offer the perforate corresponding with described cantilever sheet, described cantilever sheet correspondence is arranged at described tapping and is integrated with described metallic matrix laser welding, described piezoelectric piece bonding is in a side of described cantilever sheet, and described free oscillator is adhered to the center position of the another side of relatively described piezoelectric patches.
Compared with prior art, due to piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention, its piezoelectric piece bonding, in the surface of described cantilever sheet, can arrange area large, improves generating efficiency; And whens vibrations, described cantilever sheet drives described piezoelectric patches along its vertical direction vibrations, makes piezoelectric patches remain valid deformation and vibrations, and mechanical energy conversion efficiency is high, further improves generating efficiency; And cantilever chip architecture is simple, volume is little, thin thickness, usefulness is high and cost is low; And in the production process of this piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), by laser welding, to obtain piezoelectric element subelement in batches, in production process, assembly precision is high, production efficiency is high and cost is low.
Accompanying drawing explanation
Fig. 1 is the flow chart of the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention.
Fig. 2 is the sub-process figure of step S01 in Fig. 1.
Fig. 3 is the structural representation of metallic matrix plate of the present invention.
Fig. 4 is the structural representation of cantilever sheet plate of the present invention.
Fig. 5 is that cantilever sheet plate of the present invention is installed on the structural representation on metallic matrix plate.
Fig. 6 is metallic matrix plate and the cantilever sheet plate view of carrying out pelletizing after welding.
Fig. 7 is the enlarged diagram of piezoelectric element subelement of the present invention.
Fig. 8 is the vertical view of piezoelectric element of the present invention.
Fig. 9 is the structural representation of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention.
Figure 10 is the cutaway view of Fig. 9.
Figure 11 is the exploded view of Fig. 9.
Figure 12 is the decomposing schematic representation of piezoelectric element subelement in Fig. 9.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, in accompanying drawing, similarly element numbers represents similar element.The manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) provided by the invention, carrying out, in the process of Assembling Production, being convenient to exactitude position, thereby improves assembly precision, and batch production has improved production efficiency greatly, thereby reduces production costs.
As shown in Figure 1, the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) provided by the present invention, it comprises the steps:
S01: obtain piezoelectric element subelement in batches by laser welding, install piezoelectric patches and free oscillator on piezoelectric element subelement to obtain piezoelectric element described in each;
S02: pedestal is provided, and described pedestal is hollow structure, the hollow structure of described pedestal forms containing cavity;
S03: piezoelectric element described in providing at least two, is installed on described piezoelectric element in parallel to each other on described pedestal, and the free oscillator of described piezoelectric element is placed in described containing cavity;
S04: bottom is provided, described bottom correspondence is covered on to the two ends of described pedestal; And
S05: provide at least two conduction capillaries, thereby described conduction capillary is connected with described piezoelectric element and passes wherein bottom formation conductive electrode described in.
As shown in Figure 2, in the manufacture method of above-mentioned piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), described step S01 also specifically comprises the steps:
S11: a metallic matrix plate is provided, is provided with at least two metallic matrixes on described metallic matrix plate;
S12: a cantilever sheet plate is provided, is provided with the cantilever sheet corresponding with described metallic matrix quantity on described cantilever sheet plate;
S13: described cantilever sheet plate correspondence is installed on described metallic matrix plate, and makes described cantilever sheet corresponding one by one with described metallic matrix, and by location structure, described cantilever sheet plate and metallic matrix plate are located;
S14: incite somebody to action one to one described at least two cantilever sheet and described metallic matrix is disposable is welded as a whole by laser welding;
S15: thus by pelletizing, the corresponding described cantilever sheet being welded as a whole and described metallic matrix are one by one taken off and obtain multiple piezoelectric element subelements;
S16: some piezoelectric patches are provided, bonding multiple piezoelectric patches on the cantilever sheet of piezoelectric element subelement described in each, and multiple described piezoelectric patches is radial setting;
S17: multiple free oscillators are provided, bonding free oscillator on the cantilever sheet of described piezoelectric element subelement that is bonded with piezoelectric patches, and described free oscillator correspondence is adhered to the center position with respect to the another side of described piezoelectric patches, thereby form piezoelectric element.
Shown in Fig. 3-Fig. 8, manufacture method and process to piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention are elaborated.
As shown in Figure 3, Figure 4, metallic matrix plate of the present invention structure in the form of sheets, at least one metallic matrix bar 31 is set on each metallic matrix plate, on each described metallic matrix bar 31, be provided with at least two metallic matrixes 311, in the present embodiment, described metallic matrix plate only has a metallic matrix bar 31, is provided with ten metallic matrixes 311 on this metallic matrix bar 31; Certainly, the quantity of the metallic matrix 311 arranging on each metallic matrix bar 31 is not as limit, and the structure of metallic matrix plate, also not as limit, can also be other shapes, and multiple metallic matrixes 311 are set on it; Accordingly, described cantilever sheet plate structure in the form of sheets, is provided with at least one cantilever slip 32 on described cantilever sheet plate, on each described cantilever slip 32, is provided with at least two cantilever sheets 321, and all corresponding with metallic matrix 311 of cantilever sheet 321 quantity and position; In the present embodiment, cantilever sheet plate only has a cantilever slip 32, and the structure of cantilever slip 32 is completely corresponding with the structure of metallic matrix bar 31; Understandably, described cantilever slip 32 is not limited to this shape, as long as the cantilever sheet 321 arranging on it is corresponding one by one with metallic matrix 311.
On described metallic matrix plate, be laid with electronic circuit and connect pad, being provided with location structure 312 in the marginal position compartment of terrain of each metallic matrix bar 31; The marginal position of each cantilever slip 32 also compartment of terrain is provided with location structure 322, and the location structure 312 arranging on metallic matrix bar 31 is completely corresponding with the location structure 322 arranging on cantilever slip 32, for realizing both accurate location.
As shown in Figure 5, before welding, cantilever slip 32 correspondences in the present embodiment are installed on metallic matrix bar 31, both press the contraposition of edge strip benchmark, then position by both upper location structures 312,322 that arrange; Now, described cantilever sheet 321 is corresponding one by one with metallic matrix 311; After completing, by laser welding, all corresponding cantilever sheets that arrange 321 are welded as a whole with metallic matrix 311 is disposable, thereby form multiple piezoelectric element subelements in batches.
Shown in Fig. 6, Fig. 7, after the above-mentioned metallic matrix bar 31 that is strip has welded with cantilever slip 32, need carry out pelletizing step, to obtain single piezoelectric element subelement 131; Particularly, the cantilever sheet being welded as a whole 321 and metallic matrix 311 are taken off one by one, see Fig. 7 thereby obtain single piezoelectric element subelement 131(), wherein, cantilever sheet 321 is welded as a whole with metallic matrix 311 by the solder joint 323 on it.
Again in conjunction with shown in Fig. 7, described cantilever sheet 321 is rounded laminar, the center position of described cantilever sheet 321 forms central active region 321a, be provided with at least one elastic arm 321b around described central active region 321a, described elastic arm 321b outer has the support portion 321c of structure ringwise, between described central active region 321a, elastic arm 321b and support portion 321c, all there is certain gap, in described gap, be distributed with supporting bridge 321d to connect adjacent central active region 321a, elastic arm 321b and support portion 321c; Preferably, described elastic arm 321b has several, between adjacent described elastic arm 321b, all has certain gap, is distributed with supporting bridge 321d to connect adjacent described elastic arm 321b in described gap.Understandably, the shape of described cantilever sheet 321, not as limit, can also be arranged to other shape, for example, be arranged to square structure.
Shown in Fig. 7, Fig. 8, the piezoelectric element subelement 131 that above-mentioned pelletizing is obtained is further assembled to obtain piezoelectric element; Particularly, multiple piezoelectric patches 132 are set on the cantilever sheet 321 of piezoelectric element subelement 131, multiple piezoelectric patches 132 are radial setting, and the two ends of each piezoelectric patches 132 are adhered to respectively central active region 321a and the support portion 321c of cantilever sheet 321, simultaneously, derive by capillary at the two ends of piezoelectric patches 132, and multiple described piezoelectric patches 132 is in series or parallel connection.Preferably, described piezoelectric patches 132 for relaxor ferroelectric monocrystal film, piezoelectric fabric film, piezoelectric polymer thin-film, piezo-electricity composite material film and, have lead piezoelectric ceramics lead zirconate titanate piezoelectric sheet, PMN-PT piezoelectric patches, leadless piezoelectric ceramics barium titanate sheet, leadless piezoelectric ceramics sheet, niobate lead-free piezoelectric ceramics sheet or a niobium nickel acid potassium piezoelectric patches; Described piezoelectric patches 132 is strip or trapezoidal shape, especially to be trapezoidal shape optimum.Then, free oscillator (figure does not look) is installed on piezoelectric element subelement 131, particularly, free oscillator is adhered to the central active region 321a of cantilever sheet 321, and described free oscillator correspondence is adhered to the another side with respect to described piezoelectric patches 132, thereby forms complete piezoelectric element.
Then, piezoelectric element is further assembled to obtain piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT).In one embodiment of the invention, pedestal and bottom are provided, this pedestal is hollow structure, the hollow structure of described pedestal forms containing cavity, when installation, piezoelectric element correspondence is installed on described pedestal and described piezoelectric element is parallel to each other, and the free oscillator of piezoelectric element is placed in described containing cavity; Then, bottom is covered on to the two ends of pedestal, thereby obtains a piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) at installation conduction capillary.
In a preferred embodiment of the present invention, two piezoelectric elements are provided, two piezoelectric element correspondences are connected in to the two ends of pedestal, and the free oscillator of two piezoelectric elements is all placed in described containing cavity, and the free end of the free oscillator of two piezoelectric elements is connected, two bottoms are covered on respectively the two ends of pedestal; Then, then two conduction capillaries are installed on pedestal, and make to conduct electricity capillary and be connected with two piezoelectric elements and pass wherein a bottom and form two conductive electrodes.
Due to the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention, obtain in batches piezoelectric element subelement 131 by laser welding, described in each, on piezoelectric element subelement 131, install piezoelectric patches 132 and free oscillator to obtain piezoelectric element, again at least two piezoelectric elements are installed on pedestal, and piezoelectric element is parallel to each other, thereby and bottom be installed on pedestal obtained complete piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT); Owing to adopting laser welding to obtain in batches piezoelectric element subelement 131, carrying out, in the process of Assembling Production, being convenient to exactitude position, thereby improve assembly precision, batch production has improved production efficiency greatly, thereby reduces production costs.
Shown in Fig. 9-Figure 12, the structure of the specific embodiment to piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention describes.
In a preferred embodiment of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention, it comprises bottom, pedestal, two conduction capillaries 30 and at least two piezoelectric elements, described pedestal is hollow structure, the hollow structure of described pedestal forms containing cavity, at least two piezoelectric elements are arranged at respectively on pedestal and are parallel to each other, the free oscillator of at least two piezoelectric elements is placed in described containing cavity, and two conduction capillaries 30 are connected with at least two piezoelectric elements and pass wherein a bottom and form conductive electrode.
Preferably, described pedestal can be one, also can need and is integrally connected by multiple according to assembling, and in the present embodiment, pedestal is preferably two, and described in two, pedestal is respectively the first pedestal 12 and the second pedestal 22.And the piezoelectric element in this enforcement is also two, two piezoelectric elements are respectively the first piezoelectric element 13 and the second piezoelectric element 23, and correspondingly, described piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) also comprises the first bottom 11 and the second bottom 21.
Concrete, the first pedestal 12 is hollow structure, the hollow structure of the first pedestal 12 forms the first containing cavity 121, the first piezoelectric element 13 is installed in the upper end of the first pedestal 12, the first bottom 11 is covered on the upper end of the first pedestal 12, and these the first bottom 11 inside are provided with a projection 111, play position-limiting action.Accordingly, the second pedestal 22 is hollow structure, and the hollow structure of the second pedestal 22 forms the second containing cavity 221; The second piezoelectric element 23 is installed in the lower end of the second pedestal 22, the second bottom 21 is covered on the lower end of the second pedestal 22, and the upper end of the second pedestal 22 is connected with the lower end of the first pedestal 12, the free end of the first piezoelectric element 13 is connected with the free end of the second piezoelectric element 23.
Shown in Fig. 8-Figure 12, described the first piezoelectric element 13 comprises piezoelectric element subelement 131, piezoelectric patches 132 and free oscillator 133, wherein, piezoelectric element subelement 131 comprises cantilever sheet 321 and supports the metallic matrix 311 of described cantilever sheet 321, on described metallic matrix 311, offer the perforate corresponding with described cantilever sheet 321, described cantilever sheet 321 correspondences are arranged at described tapping and are integrated with described metallic matrix 311 laser welding; Multiple described piezoelectric patches 132 are adhered to a side of described cantilever sheet 321, and multiple piezoelectric patches 132 is radially and arranges, and derive by probe at the two ends of piezoelectric patches 132, and described piezoelectric patches 132 is strip or trapezoidal shape; Described free oscillator 133 is adhered to the center position of the another side of relatively described piezoelectric patches 132; While being installed on the first pedestal 12, piezoelectric element subelement 131 is supported in one end of the first pedestal 12, and described free oscillator 133 is placed in described the first containing cavity 121.
The structure of the second piezoelectric element 23 is identical with the structure of the first piezoelectric element 13, is not repeating.
In addition, in the present invention, the free oscillator 133 of the first piezoelectric element 13 is connected with the free end of the free oscillator 233 of the second piezoelectric element 23, free oscillator 133,233 is permanent magnet, and free oscillator 133,233 can be a permanent magnet, also can be multiple permanent magnets, when free oscillator the 133, the 233rd, when multiple permanent magnet, the contrary (see figure 10) of obverse polarity of two adjacent permanent magnets
The cantilever sheet of described the first piezoelectric element 13 is identical with the structure of the cantilever sheet of the second piezoelectric element 23, and below take the cantilever sheet 321 of the first piezoelectric element 13 as example, the concrete structure of the cantilever sheet to the present invention's electricity shaking generating set describes.
Consult shown in Figure 12, described cantilever sheet 321 is rounded laminar, the center position of described cantilever sheet 321 forms central active region 321a, be provided with at least one elastic arm 321b around described central active region 321a, described elastic arm 321b outer has the support portion 321c of structure ringwise, between described central active region 321a, elastic arm 321b and support portion 321c, all there is certain gap, in described gap, be distributed with supporting bridge 321d to connect adjacent central active region 321a, elastic arm 321b and support portion 321c; Preferably, described elastic arm 321b has several, between adjacent described elastic arm 321b, all has certain gap, is distributed with supporting bridge 321d to connect adjacent described elastic arm 321b in described gap.In the present embodiment, the elastic arm 321b of cantilever sheet 321 has four, between adjacent elastic arm 321b, all has certain gap, is distributed with supporting bridge 321d to connect adjacent elastic arm 321b in described gap, and the supporting bridge 321d in each gap has two.Supporting bridge 321d in same gap is uniformly distributed along described central active region 321a, being interspersed along described central active region 321a of the supporting bridge 321 in adjacent segment.Certainly, described elastic arm 321b is not limited with four, can also be two, three or other numbers, the corresponding increase and decrease of quantity of supporting bridge 321d.This structure of this cantilever sheet 321 can shake along its vertical direction it in the time being subject to external force, thereby drives the piezoelectric patches 132 on it to shake along its vertical direction, remain valid deformation and vibrations, and mechanical energy conversion efficiency is high, improves generating efficiency; Moreover described cantilever sheet 321 is simple in structure, volume is little, thin thickness, usefulness is high and cost is low.
Preferably, described cantilever sheet for example, for example, for example, for example, is made up of metal material (stainless steel), metal oxide (aluminium oxide), nonmetallic materials (plastics), nonmetal oxide () silicon dioxide or ceramic material.
In the time that piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention is positioned in mobile electronic product or terminal, along with the movement of mobile electronic product or terminal, can there is resonance thereby drive piezoelectric patches 132 to produce deformation in the cantilever sheet 321 of described piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), the deformation meeting of piezoelectric patches 132 makes it produce a piezoelectricity output, like this, due to the vibrations repeatedly of cantilever sheet 321 and piezoelectric patches 132, just be able to continuously generation output voltage, thereby electric energy be provided or repeatedly charge to its battery to mobile electronic product or terminal.
It should be noted that in above-described embodiment, described cantilever sheet 321 is circular configuration, and certainly, the structure of cantilever sheet 321 is as limit, and described cantilever sheet 321 can also be triangular in shape, square or other deformable bodys of polygon, assembly etc.
Due to piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention, its piezoelectric patches 132 is adhered to the surface of described cantilever sheet 321, can area be set large, improves generating efficiency; And whens vibrations, described cantilever sheet 321 drives described piezoelectric patches 132 along its vertical direction vibrations, makes piezoelectric patches 132 remain valid deformation and vibrations, and mechanical energy conversion efficiency is high, further improves generating efficiency; And cantilever chip architecture is simple, volume is little, thin thickness, usefulness is high and cost is low; And in the production process of this piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), by laser welding, to obtain piezoelectric element subelement 131 in batches, in production process, assembly precision is high, production efficiency is high and cost is low.
Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (16)
1. a manufacture method for piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT), is characterized in that, comprises the steps:
(1) obtain piezoelectric element subelement in batches by laser welding, described in each, on piezoelectric element subelement, install piezoelectric patches and free oscillator to obtain piezoelectric element;
(2) provide pedestal, described pedestal is hollow structure, and the hollow structure of described pedestal forms containing cavity;
(3) provide at least two described in piezoelectric element, described piezoelectric element is installed on described pedestal in parallel to each other, and the free oscillator of described piezoelectric element is placed in described containing cavity;
(4) provide bottom, described bottom correspondence is covered on to the two ends of described pedestal; And
(5) provide at least two conduction capillaries, thereby described conduction capillary is connected with described piezoelectric element and passes wherein bottom formation conductive electrode described in.
2. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 1, is characterized in that, described step (1) specifically comprises the steps:
(11) provide a metallic matrix plate, on described metallic matrix plate, be provided with at least two metallic matrixes;
(12) provide a cantilever sheet plate, on described cantilever sheet plate, be provided with the cantilever sheet corresponding with described metallic matrix quantity;
(13) described cantilever sheet plate correspondence is installed on described metallic matrix plate, and makes described cantilever sheet corresponding one by one with described metallic matrix, and by location structure, described cantilever sheet plate and metallic matrix plate are located;
(14) incite somebody to action one to one described at least two cantilever sheet by laser welding and described metallic matrix is disposable is welded as a whole;
(15) thus by pelletizing, the corresponding described cantilever sheet being welded as a whole and described metallic matrix are one by one taken off and obtain multiple piezoelectric element subelements;
(16) provide some piezoelectric patches, bonding multiple piezoelectric patches on the cantilever sheet of piezoelectric element subelement described in each, and multiple described piezoelectric patches is radial setting;
(17) provide multiple free oscillators, bonding free oscillator on the cantilever sheet of described piezoelectric element subelement that is bonded with piezoelectric patches, and described free oscillator correspondence is adhered to the center position with respect to the another side of described piezoelectric patches, thereby form piezoelectric element.
3. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 2, it is characterized in that, described metallic matrix plate structure in the form of sheets, is provided with at least one metallic matrix bar on described metallic matrix plate, on each described metallic matrix bar, be provided with at least two metallic matrixes.
4. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 2, is characterized in that, described cantilever sheet plate structure in the form of sheets, is provided with at least one cantilever slip on described cantilever sheet plate, on each described cantilever slip, is provided with at least two cantilever sheets.
5. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 2, it is characterized in that, rounded or the square sheet shape of described cantilever sheet, the center position of described cantilever sheet forms central active region, be provided with at least one elastic arm around described central active region, described elastic arm outer has the support portion of structure ringwise, between described central active region, elastic arm and support portion, all there is certain gap, in described gap, be distributed with supporting bridge to connect adjacent central active region, elastic arm and support portion.
6. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 5, it is characterized in that, described elastic arm has several, between adjacent described elastic arm, all has certain gap, is distributed with supporting bridge to connect adjacent described elastic arm in described gap.
7. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 5, it is characterized in that, multiple described piezoelectric patches are and are arranged at radially on described cantilever sheet, and the two ends of multiple described piezoelectric patches are adhered to respectively central active region and the support portion of described cantilever sheet, and multiple described piezoelectric patches is in series or parallel connection.
8. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 7, it is characterized in that, described piezoelectric patches is relaxor ferroelectric monocrystal film, piezoelectric fabric film, piezoelectric polymer thin-film, piezo-electricity composite material film, have lead piezoelectric ceramics lead zirconate titanate piezoelectric sheet, PMN-PT piezoelectric patches, leadless piezoelectric ceramics barium titanate sheet, leadless piezoelectric ceramics sheet, niobate lead-free piezoelectric ceramics sheet or niobium nickel acid potassium piezoelectric patches.
9. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 7, is characterized in that, described piezoelectric patches is strip or trapezoidal shape.
10. the manufacture method of piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 1, it is characterized in that, described piezoelectric element is two, described in two, piezoelectric element correspondence is arranged at the two ends of described pedestal, described in two, the free oscillator of piezoelectric element is all placed in described containing cavity, and described in two, the free end of the free oscillator of piezoelectric element is connected.
The manufacture method of 11. piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 10, is characterized in that, described free oscillator is permanent magnet.
The manufacture method of 12. piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 10, is characterized in that, described permanent magnet is for single or multiple.
The manufacture method of 13. piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 12, is characterized in that, the polarity of the opposite face of multiple described permanent magnets is contrary.
The 14. piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) that use the manufacture method of the piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as described in claim 1-13 any one to manufacture, it is characterized in that, comprise pedestal, bottom, at least two piezoelectric elements and at least two conduction capillaries, wherein, described pedestal is hollow structure, and the hollow structure of described pedestal forms containing cavity; Described at least two, piezoelectric element is arranged on described pedestal and is parallel to each other, and the free oscillator of piezoelectric element is placed in described containing cavity described at least two, described conduction capillary is connected with described piezoelectric element and passes wherein bottom described in one and form conductive electrode.
15. piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 14, is characterized in that, described piezoelectric element comprises:
Piezoelectric element subelement, described piezoelectric element subelement is installed on one end of described pedestal corresponding with described containing cavity;
Multiple piezoelectric patches, multiple described piezoelectric patches are a side that is adhered to radially described piezoelectric element subelement; And
Free oscillator, described free oscillator is adhered to the center position of the another side with respect to described piezoelectric patches of described piezoelectric element subelement, and described free oscillator is placed in described containing cavity.
16. piezoelectric shock Blast Furnace Top Gas Recovery Turbine Unit (TRT) as claimed in claim 15, it is characterized in that, described piezoelectric element subelement comprises: cantilever sheet and support the metallic matrix of described cantilever sheet, on described metallic matrix, offer the perforate corresponding with described cantilever sheet, described cantilever sheet correspondence is arranged at described tapping and is integrated with described metallic matrix laser welding, described piezoelectric piece bonding is in a side of described cantilever sheet, and described free oscillator is adhered to the center position of the another side of relatively described piezoelectric patches.
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| CN201310004914.0A CN103916048B (en) | 2013-01-07 | 2013-01-07 | Piezoelectric vibration generation device and manufacture method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6469421B1 (en) * | 1998-10-26 | 2002-10-22 | Seiko Instruments Inc. | Piezoelectric device and production method thereof |
| US7197799B2 (en) * | 2003-12-02 | 2007-04-03 | Seiko Epson Corporation | Method for manufacturing a piezoelectric device |
| JP2008141307A (en) * | 2006-11-30 | 2008-06-19 | Citizen Holdings Co Ltd | Piezoelectric vibrator, its manufacturing method, and physical quantity sensor |
| CN102797517A (en) * | 2012-09-01 | 2012-11-28 | 浙江师范大学 | Electricity generation device for oil gas pipeline monitoring system |
-
2013
- 2013-01-07 CN CN201310004914.0A patent/CN103916048B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6469421B1 (en) * | 1998-10-26 | 2002-10-22 | Seiko Instruments Inc. | Piezoelectric device and production method thereof |
| US7197799B2 (en) * | 2003-12-02 | 2007-04-03 | Seiko Epson Corporation | Method for manufacturing a piezoelectric device |
| JP2008141307A (en) * | 2006-11-30 | 2008-06-19 | Citizen Holdings Co Ltd | Piezoelectric vibrator, its manufacturing method, and physical quantity sensor |
| CN102797517A (en) * | 2012-09-01 | 2012-11-28 | 浙江师范大学 | Electricity generation device for oil gas pipeline monitoring system |
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