CN204030710U - The self-service electric power system of a kind of single-store frame formula - Google Patents
The self-service electric power system of a kind of single-store frame formula Download PDFInfo
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- CN204030710U CN204030710U CN201420425610.1U CN201420425610U CN204030710U CN 204030710 U CN204030710 U CN 204030710U CN 201420425610 U CN201420425610 U CN 201420425610U CN 204030710 U CN204030710 U CN 204030710U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The self-service electric power system of a kind of single-store frame formula, belongs to emergency power supply field.Comprise the piezoelectric vibration energy gatherer group, rectification circuit, charging circuit and the storage battery that connect successively; Piezoelectric vibration energy gatherer group comprises multiple piezoelectric vibration energy gatherers; An individual layer general frame structure is set, individual layer general frame structure is a frame structure with multiple tabulas, between every two tabulas, be fixed with multiple piezoelectric vibration energy gatherers, one end of each piezoelectric vibration energy gatherer is fixed on tabula, forms an array piezoelectric vibration energy gatherer group; Described individual layer general frame structure is fixed on the body of transformer or the accessory structure of transformer.It makes full use of the vibrational energy of transformer, turns waste into wealth, and can realize the emergency lighting under malfunction, contributes to save energy and reduce the cost, and improves substation operation coefficient of safety.Can be widely used in design, the manufacture field of transformer station's emergency lighting system or primary line way switch emergency operation power supply.
Description
Technical field
The utility model belongs to emergency power supply field, relates in particular to a kind of self-service electric power system for transformer station.
Background technology
In existing transformer station, emergent accident illuminator, as a kind of standard configuration, is widely used.
The emergent accident illuminator of a standard, is made up of a set of ac-dc converting means, at least one group storage battery and emergence lighting lamp of being distributed in each crucial lighting point etc. conventionally.When normal by AC power supply system at the station of transformer station, emergent accident illuminator is powered by AC power supply system by standing, batteries in emergent accident illuminator is charged, once the station of transformer station disappears by AC power, by commutation circuit (or control switch), by the batteries in charged state (also claiming direct current system) at ordinary times, transformer station's emergent accident illuminator puts into operation state automatically, the power output end of batteries is powered to each emergence lighting lamp, guarantees essential illumination in the state of accident.
Existing various emergent accident illuminator, its operation principle is in fact similar with UPS device with computer, be all in the time that AC power has electricity, batteries is charged by AC power, in the time of AC power dead electricity, batteries proceeds to operating state, for emergence lighting lamp or system provide emergency power supply, ensures in emergency circumstances required minimum and necessary brightness of illumination.
Along with the development of lighting technology, the lighting of various employing LED luminescent devices arises at the historic moment, for example, open day is on 03 12nd, 2014, publication number is in the Chinese invention patent application of CN103632621A, disclose a kind of " energy-saving LED emergency lighting and equipment nameplate one label ", its label body is transparent light guide panel, is marked with device numbering at transparent light guide panel; LED luminescent device is set around transparent light guide panel; The exiting surface of LED luminescent device is towards transparent light guide panel; LED luminescent device is connected with the power supply of transformer station emergent accident lighting device through wire.After transformer station's emergent accident lighting device starts, LED luminescent device obtains electroluminescence, illuminate the device numbering on transparent light guide panel, help operating personnel to carry out correct reading rapidly to device numbering famous brand, and provide accident emergency lighting source to position, label place.Its transparent light guide panel both can be numbered word by display device, can be used as again planar light source and illuminate surrounding enviroment, can avoid operations staff's misoperation, utilized to greatest extent illumination energy, make two one of emergent accident lighting device and device numbering famous brand, play double action.
Transformer noise is by body construction design, type selecting layout, installation, use procedure, machinery noise irregular, that cause intermittently, continuously or at random and airborne noise summation that transformer body and cooling system produce.
Specifically, the noise of transformer body generation of vibration has its source in:
(1) core vibration that the magnetostriction of silicon steel sheet causes;
(2) between silicon steel sheet seam crossing and lamination, exist the electromagnetic attraction producing because of leakage field and cause the vibration of iron core;
(3), in the time having load current to pass through in Transformer Winding, the leakage field that load current produces causes the vibration of coil, oil tank wall.
Along with economic development, the fossil energy resources such as coal, oil are because constantly consuming day by day and reduce, and various regenerative resources are all being greatly developed in countries in the world, and hope can collect the energy that can recycle in environment and change.Piezoelectric vibration energy gatherer is exactly a kind of device of realizing this function, and it is collected the various vibrational energies in environment to be converted to electric energy by piezoelectric (normally piezoelectric ceramic) " piezoelectric effect ".
Piezoelectric ceramic be a kind of can be by mechanical energy and the electric energy ceramic material of conversion mutually.So-called " piezoelectric effect " refers to that some medium is in the time being subject to mechanical pressure, even this pressure is small as acoustic vibration, all can produce the change of shape such as compression or elongation, causes that dielectric surface is charged, and this is direct piezoelectric effect.Otherwise, applying excitation electrical field, medium will produce mechanical deformation, claim inverse piezoelectric effect.
Prepare the self-service electric power system of one based on piezoelectric vibration energy gatherer if can utilize " piezoelectric effect ", the vibrational energy of transformer is collected and stored, piezoelectric vibration energy gatherer is combined with the emergency lighting system of transformer station, in the time that transformer station breaks down, be emergency-lighting set power supply in time, both can realize the emergency lighting under malfunction, improve breakdown repair efficiency, guarantee personal safety and device security; Can make full use of again the vibrational energy of transformer, turn waste into wealth, contribute to save energy and reduce the cost, reduce the cost of operation maintenance work, the realization of its design and completing, is of great significance for the economical operation tool of transformer station.
Utility model content
Technical problem to be solved in the utility model is to provide the self-service electric power system of a kind of single-store frame formula, it adopts array piezoelectric vibration energy gatherer as energy gathering apparatus, pass through single-storeyed frame structure, multiple piezoelectric vibration energy gatherers are installed, be fixed on the assigned address of transformer body or its accessory structure, under resonance condition, collect the energy of transformer generation of vibration, for the emergency operation of transformer station's Emergency Light and primary line way switch, both can realize the emergency lighting under malfunction, improve breakdown repair efficiency, guarantee personal safety and device security, can make full use of again the vibrational energy of transformer, turn waste into wealth, contribute to save energy and reduce the cost, improve the coefficient of safety of substation operation.
The technical solution of the utility model is: provide a kind of single-store frame formula self-service electric power system, it is characterized in that: described self-service electric power system comprises the piezoelectric vibration energy gatherer group, rectification circuit, charging circuit and the storage battery that connect successively; Described piezoelectric vibration energy gatherer group comprises multiple piezoelectric vibration energy gatherers; An individual layer general frame structure is set, described individual layer general frame structure is a frame structure with multiple tabulas, between every two tabulas, be fixed with multiple described piezoelectric vibration energy gatherers, one end of each piezoelectric vibration energy gatherer is fixed on described tabula, forms an array piezoelectric vibration energy gatherer group; Described individual layer general frame structure is fixed on the body of transformer or the accessory structure of transformer; Described multiple piezoelectric vibration energy gatherers are parallel-connection structure on circuit; The electric energy output end of described piezoelectric vibration energy gatherer group, successively through described rectification circuit and charging circuit, with the corresponding connection of positive and negative electrode of described storage battery; The positive and negative electrode of described storage battery is through a control switch, with the corresponding connection of DC supply input of transformer station's emergency lighting system or primary line way switch DC operating system.
Concrete, the individual layer general frame structure described in it, is arranged on the connecting rod place between spray bar and the body of transformer.
Further, connecting rod place between spray bar and the body of described transformer, individual layer general frame structure described in longitudinal setting at least two groups respectively, between two groups of individual layer general frame structures, process clamping plate and fastening bolt and connecting rod fix as one, and form the vibrational energy collection assembly of double end dumbbell type structure.
Further, the piezoelectric vibration energy gatherer described in it is twin lamella cantilever beam structure piezoelectric vibration energy gatherer, drum organization piezoelectric vibration energy gatherer or big cymbals structure piezoelectric vibration energy gatherer.
Described rectification circuit is voltage doubling rectifing circuit.
Described charging circuit is the charging circuit of the fast mold filling formula of current limliting-constant voltage.
Described storage battery is lithium battery.
Compared with the prior art, the utility model has the advantages that:
1. adopt array piezoelectric vibration energy gatherer group, this array piezoelectric vibration energy gatherer group is fixed on to the assigned address on transformer, under resonance condition, collect transformer and vibrate the energy producing, for the emergency operation of transformer station's Emergency Light and primary line way switch, not only reach energy-conservation effect, transformer has also been had the function of vibration and noise reducing simultaneously;
2. adopt the individual layer general frame structure that can be fastened on vibration source, by multiple piezoelectric vibration energy gatherer composition array architectures, be fixed in individual layer general frame structure, to improve its electric energy fan-out capability;
3. whole self-service electric power system both can realize the emergency lighting under malfunction, can make full use of again the vibrational energy of transformer, turned waste into wealth, and also can realize to transformer the function of vibration and noise reducing.
Brief description of the drawings
Fig. 1 is the circuit module schematic diagram of the self-service electric power system of the utility model;
Fig. 2 is the structural representation of the utility model individual layer general frame structure;
Fig. 3 is the end view of Fig. 2;
Fig. 4 is the actual installation structural representation of individual layer general frame structure;
Fig. 5 is the structural representation of the utility model twin lamella cantilever beam structure piezoelectric vibration energy gatherer;
Fig. 6 is the structural representation of the utility model big cymbals structure piezoelectric vibration energy gatherer;
Fig. 7 is the structural representation of the utility model drum organization piezoelectric vibration energy gatherer;
Fig. 8 is the line map of the utility model charging circuit embodiment.
In figure, 1 is piezoelectric vibration energy gatherer, 2 is individual layer general frame structure, and 2-1 is the screw arbor assembly with tubular distance piece, and 2-2 is clamping plate, 2-3 is connecting rod, 3 is vibration source, and 4 is mass loading, and 5-1 is the first piezoelectric monocrystal sheet, 5-2 is the second piezoelectric monocrystal sheet, 6 is substrate, and 7-1 is upper metal cap, and 7-2 is lower metal cap, 8 is relaxor ferroelectric monocrystal sheet, 9 is copper ring, and 10-1 is upper copper sheet, and 10-2 is lower copper sheet, 11 is circular piezoelectric single-chip, 12 is copper billet mass loading, and K1 is the automatic control switch of emergency lighting system control, and K2 is control switch.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
In Fig. 1, the technical solution of the utility model provides a kind of single-store frame formula self-service electric power system, and the self-service electric power system described in it comprises the piezoelectric vibration energy gatherer group, rectification circuit, charging circuit and the storage battery that connect successively.
Described piezoelectric vibration energy gatherer group comprises multiple piezoelectric vibration energy gatherers.
In technical solutions of the utility model, an individual layer general frame structure is set, described individual layer general frame structure is a frame structure with multiple tabulas, between every two tabulas, be fixed with multiple described piezoelectric vibration energy gatherers, one end of each piezoelectric vibration energy gatherer, is separately fixed on described tabula, forms an array piezoelectric vibration energy gatherer group; Described individual layer general frame structure is fixed on the body of transformer or the accessory structure of transformer.
Further, in technical solutions of the utility model, at storage battery source output terminal and serve as between the LED luminescent device of emergency lighting system light emitting source, be serially connected with the automatic control switch K1 of emergency lighting system control; Or, between storage battery source output terminal and primary line way switch emergency operation power input, be serially connected with control switch K2.
The electric energy output end of described piezoelectric vibration energy gatherer group is through described rectification circuit, charging circuit, with the corresponding connection of positive and negative electrode of described storage battery.
Piezoelectric vibration energy gatherer group described in it, for collect the energy of transformer generation of vibration under resonance condition, and utilizes " piezoelectric effect " to be converted into electric energy.
Self-service for electric system in the technical program, by described rectification circuit, by the collected electric energy of described piezoelectric vibration energy gatherer group, converts stable, controllable direct current energy to, sends into and in storage battery, carries out stored energy through described charging circuit.
By in the power output end access emergency lighting system of transformer station of described storage battery or the DC operating system of a switch; In the time that power supply dead electricity is used in the Exchange Station of transformer station, emergency lighting system is by controlling the automatic closure of automatic control switch K1, connect the power output end of described storage battery, described self-service electric power system, for LED luminescent device provides power supply, realizes the emergency lighting function of transformer station.Or in the time of the DC operating system power supply dead electricity of transformer station, by Closed control K switch 2, described self-service electric power system provides emergency operation DC power supply for the operation of transforming plant primary line switching.
Self-service electric power system described in the technical program, based on the piezoelectric vibration energy gatherer with " piezoelectric effect ", under resonance condition, collect transformer in piezoelectric vibration energy gatherer group and vibrate the energy producing, adopt storage battery that the vibrational energy of transformer is collected and stored; Emergency Light power supply using storage battery as transformer station or the emergency operation power supply of primary line way switch; Break down or when the power supply dead electricity of its Exchange Station in transformer station, in time for emergency lighting is powered, or provide emergency operation power supply for primary line way switch; Both can realize the Emergency Light under malfunction, improve breakdown repair efficiency, guarantee personal safety and device security; Can make full use of again the vibrational energy of transformer, turn waste into wealth, contribute to save energy and reduce the cost, reduce the cost of operation/maintenance work, reach energy-saving and cost-reducing effect, reduce operating cost, improve the coefficient of safety of substation operation.
In Fig. 2 and Fig. 3, aforesaid piezoelectric vibration energy gatherer group comprises multiple piezoelectric vibration energy gatherers 1, and multiple piezoelectric vibration energy gatherers are fixed in an individual layer general frame structure 2.
Described individual layer general frame structure, it is a frame structure with multiple tabulas, between every two tabulas, be fixed with multiple piezoelectric vibration energy gatherers 1, one end of each piezoelectric vibration energy gatherer is fixed on described tabula, in the time that the vibrational energy of transformer generation conducts to each piezoelectric vibration energy gatherer by individual layer general frame structure, each piezoelectric vibration energy gatherer, by received mechanical oscillation, is converted to electric energy output.
As shown in Figure 3, described individual layer general frame structure can arrange multiple, between each frame structure, fixes as one by the screw arbor assembly 2-1 with tubular distance piece.
Described multiple piezoelectric vibration energy gatherers are parallel-connection structure on circuit, it can avoid on the one hand affecting because of the damage of or local several piezoelectric vibration energy gatherers the output of overall electric energy, on the other hand, adopt parallel-connection structure, can export larger electric current, for follow-up rectification circuit or charging circuit provide larger operating current, to meet the charging current requirement of storage battery.
Described individual layer general frame structure and the accessory structure of described transformer body or transformer are connected to one, and the vibrational energy that described transformer is produced is passed to described multiple piezoelectric vibration energy gatherers.
In Fig. 4, connecting rod 2-3 place between described transformer spray bar and body, be vertically arranged with respectively the aforesaid individual layer general frame of at least two groups structure, between two groups of individual layer general frame structures, through clamping plate 2-2 and fastening bolt, fix as one with connecting rod, form the vibrational energy collection assembly of double end dumbbell type structure, drive described multiple piezoelectric vibration energy gatherer vibrations, generating.
As shown in this figure, at the upper and lower of connecting rod 2-3, some groups of (being equivalent to arrange in couples) individual layer general frame structures are all set symmetrically, so on the one hand multiple individual layer general frame structures can be as much as possiblely set, form a group pattern vibrational energy collection assembly structure, on the other hand, also relate to resonance frequency problem and the vibration balancing problem of individual layer general frame structural entity part.
Because piezoelectric vibration energy gatherer in the technical program is under resonance condition (referring to that resonance frequency is the vibration applications environment of 100Hz), make individual layer general frame structure drive the described vibration of piezoelectric vibration energy gatherer group, generating, therefore choose suitable individual layer general frame construction weight, the vibration frequency of its resonance frequency and the transformer body at fixing individual layer general frame structure place or the accessory structure of transformer is matched, only in this way, just can make piezoelectric vibration energy gatherer in optimum vibration frequency, output maximum power.
When actual enforcement, can first make a single-storeyed frame structure, the piezoelectric vibration energy gatherer of some (is for example fixed on single-store frame, each single-store frame is installed respectively piezoelectric vibration energy gatherer 3 row, 3 of every row, totally 9), then use with the screw arbor assembly 2-1 of tubular distance piece and multiple single-store frames are run through and tightened together, be i.e. the vibrational energy collection assembly of forming array formula.
Learn by test, the vibration acceleration of the spray bar of transformer and body connecting rod is in 0.4m/s2 left and right, and the vibration of transformer is with 100Hz frequency accounting maximum.
From the viewpoint of oscillation intensity and installation difficulty two, select the connecting rod place of spray bar and body, as the fixing position of individual layer general frame structure, individual layer general frame structure (being referred to as power generation part) with multiple piezoelectric vibration energy gatherers is arranged on this connecting rod, drives power generation part vibrating power-generation by connecting rod.
Because the resonance frequency of bar linkage structure is far above the frequency 100Hz of transformer body vibration source.After individual layer general frame structure (power generation part) is arranged on connecting rod, power generation part is as mass loading, the resonance frequency of bar linkage structure can decline, if resonance frequency can drop to just 100Hz, individual layer general frame structure can receive the vibration of maximum intensity, in other words, it can absorb the vibration of maximum intensity.
Simulate and field measurement by finite element simulation, for the main transformer of a 35kV, its power generation part gross mass (weight) is 13.6kg; On the connecting rod position between transformer spray bar and body, apart from body 8.6cm place, be best position.
In Fig. 5, the piezoelectric vibration energy gatherer of the technical program can adopt twin lamella cantilever beam structure piezoelectric vibration energy gatherer.
The structure of twin lamella cantilever beam structure piezoelectric vibration energy gatherer is by upper and lower surface each bonding piezoelectric monocrystal sheet 5-1, a 5-2 at a laminar substrate 6 (for sheet metal) (conventionally alleged piezoelectric layer or piezoelectric patches) composition, and the area of piezoelectric monocrystal sheet is conventionally equal with sheet metal or be slightly smaller than sheet metal.
One end of described twin lamella is fixed on vibration source 3 and vibrates with vibration source, and the other end is adhesively fixed with mass loading 4.
In Fig. 6, the piezoelectric vibration energy gatherer of the technical program can also adopt big cymbals structure piezoelectric vibration energy gatherer.
The structure of its big cymbals structure piezoelectric vibration energy gatherer is made up of with the upper metal cap 7-1 and the lower metal cap 7-2 that are fixed in its upper and lower surface middle relaxor ferroelectric monocrystal sheet 8.
After the metal cap of relaxor ferroelectric monocrystal sheet one side (copper cap) is fixed on vibration source, bond copper billet (being equivalent to aforesaid mass loading) on the copper cap of opposite side time, the vibration mode that copper cap top displacement is larger is suppressed, from its impedance spectrum, along with the increase of mass loading, resonance point moves to low frequency direction, and the corresponding device output impedance of resonance point increases, and increases therefore power output reaches the required external build-out resistor of maximum.
In Fig. 7, the piezoelectric vibration energy gatherer of the technical program can also adopt cydariform piezoelectric structure energy harvester.
Its cydariform piezoelectric structure energy harvester is by middle copper ring 9, be positioned at the upper copper sheet 10-1 on the upper and lower surface of copper ring, lower copper sheet 10-2, on upper copper sheet, bonding is fixed a circular piezoelectric single-chip 11 (PMNT single-chip) again, the lower surface of cydariform piezoelectric structure energy harvester is fixed on vibration source, and in the center of upper surface, bonding is fixed a copper billet mass loading 12.
When actual enforcement, be stained with the upper and lower copper sheet of diameter 25mm, thick 0.15mm in the copper ring upper and lower surface of external diameter 23mm, internal diameter 21mm, high 3mm, on upper copper sheet, be stained with again the circular piezoelectric single-chip (PMNT single-chip) of diameter 17mm, thick 0.5mm, the lower surface of cydariform piezoelectric structure energy harvester is fixed on vibration source, and the copper billet of sticky diameter 5mm, a quality 0.5g of the center on surface is as mass loading thereon.
The resonance frequency of this kind of cydariform piezoelectric structure energy harvester structure is 710Hz left and right, more than maximum output voltage can reach 7V.
Compared with the structure of the cantilever beam structure of twin lamella shown in Fig. 5 piezoelectric vibration energy gatherer, the piezoelectric vibration energy gatherer of this drum organization has its distinctive advantage: on the one hand, this structure does not need the required space of long-armed and swing arm of cantilever beam structure, only in drum surface internal vibration very among a small circle up and down, therefore the requisite space of working is smaller, is more suitable for working in the vibration environment in little space; On the other hand, drum organization bottom surface is larger, together with can being bonded and fixed at vibration source better.
In Fig. 8, the charging circuit of the technical program, that the battery proposing according to 20 th century America scientist Maas (J.A.Mas) fills three laws soon, high-impedance behavior in conjunction with piezoelectric is carried out improved charging circuit, this charging circuit is taking DC-DC converter as core, overcome unstable, the shortcoming that can not manual control of the electric energy of electricity generation material output, the electric energy collected on vibrational energy collector has been converted to stable, controllable electric energy for charge in batteries.
In whole charging process, cell voltage will be exponential form in time to be increased, but battery current is the constant current charge stage in the charging starting stage, is then in time exponential form and reduces.Therefore can predict: when at the beginning of charging, cell voltage is lower, with a larger electric current, battery is charged, rear charging current reduces gradually, until be full of.
Concrete, its charging circuit is made up of boost chip, resistance R 0～R8, adjustable resistance RT, capacitor C 1～C6, diode D1～D4, inductance L 11 and field effect transistor BGA of DC-DC; Wherein, the boost AVIN pin of chip of power input INPUT and DC-DC is connected, this power input is also connected through the boost PVIN pin of chip of diode D1 and DC-DC, this power input is also connected through the boost CHC pin of chip of resistance R 2, diode D2 and DC-DC simultaneously, also be connected through the boost EOC pin of chip of resistance R 3, diode D3 and DC-DC, and through capacitor C 1 ground connection.
The boost LVO pin of chip of DC-DC is connected with one end of resistance R 1 and capacitor C 2 with NC pin, the other end ground connection of capacitor C 2, the boost TP pin of chip of the other end of resistance R 1 and DC-DC is connected, the other end of resistance R 1 is connected with one end of adjustable resistance RT and resistance R 0 simultaneously, the other end ground connection of adjustable resistance RT and resistance R 0.
The DC-DC GND pin ground connection of chip of boosting.
DC-DC boosts the ISET pin of chip through resistance R 4 ground connection, and DC-DC boosts the IEOC pin of chip through resistance R 5 ground connection, and DC-DC boosts the VAD pin of chip through resistance R 6 ground connection.
Boost one end of the VBAT pin of chip and capacitor C 3, capacitor C 6, resistance R 8 of DC-DC, and the positive pole of storage battery (representing with battery in figure) is corresponding connects, construction system load SYSTEM LOAD end, the minus earth of storage battery.
The other end ground connection of capacitor C 3 and capacitor C 6.
The boost DRI pin of chip of DC-DC is connected with the grid G of field effect transistor BGA, the boost PVIN pin of chip of the source S of field effect transistor BGA and DC-DC is connected, and be connected with load SYSTEM LOAD end simultaneously, the drain D of field effect transistor BGA is connected with one end, the negative pole of diode D4 and one end of resistance R 7 of inductance L 11 simultaneously, the plus earth of diode D4, the other end of resistance R 7 is through capacitor C 4 ground connection.
The boost SNS pin of chip of the other end of inductance L 11 and DC-DC is connected, and is connected with the other end of resistance R 5 simultaneously, also passes through capacitor C 5 ground connection.
Significantly, this is an inductance type field DC-DC booster circuit, the effect that effect pipe BGA wherein serves as switching tube.
Its DC-DC chip that boosts can be selected the commercially available prod such as LK8811, MAX732 or MC34063A, because this series products manufacturer or dealer in the time buying all can give the service manual of chip product as an addition, wherein have standard application circuit, pin numbering/function and the test/operational factor of its chip, therefore its concrete pin label, function and test.
Adopt the DC-DC booster circuit of the technical program, piezoelectric vibration energy gatherer group (generating body) electricity can be boosted to 3V to two joint lithium battery (350mAh) chargings, as calculated according to the generating body charging current 0.416mA of actual measurement, being full of two joint lithium batteries approximately needs 70 days, can drive the LED white light of 3 60mW to throw light on approximately 3.88 hours.
Above-mentioned DC-DC booster circuit and storage battery are connected to form to one, can form a DC-DC accumulator.
This DC-DC accumulator not only can serve as the power supply of the transformer station's emergency lighting system that adopts LED luminescent device, also can serve as the emergency operation power supply of primary line way switch.
Because the utility model adopts array piezoelectric vibration energy gatherer as energy gathering apparatus, installed, be fixed on the assigned address of transformer body or its accessory structure, under resonance condition, collect the energy of transformer generation of vibration, for the emergency operation of transformer station's Emergency Light and primary line way switch, both can realize the emergency lighting under malfunction, improve breakdown repair efficiency, guarantee personal safety and device security; Can make full use of again the vibrational energy of transformer, turn waste into wealth, contribute to save energy and reduce the cost, improve the coefficient of safety of substation operation.
The utility model can be widely used in design, the manufacture field of transformer station's emergency lighting system or primary line way switch emergency operation power supply.
Claims (7)
1. the self-service electric power system of single-store frame formula, is characterized in that:
Described self-service electric power system comprises the piezoelectric vibration energy gatherer group, rectification circuit, charging circuit and the storage battery that connect successively;
Described piezoelectric vibration energy gatherer group comprises multiple piezoelectric vibration energy gatherers;
An individual layer general frame structure is set, described individual layer general frame structure is a frame structure with multiple tabulas, between every two tabulas, be fixed with multiple described piezoelectric vibration energy gatherers, one end of each piezoelectric vibration energy gatherer is fixed on described tabula, forms an array piezoelectric vibration energy gatherer group;
Described individual layer general frame structure is fixed on the body of transformer or the accessory structure of transformer;
Described multiple piezoelectric vibration energy gatherers are parallel-connection structure on circuit;
The electric energy output end of described piezoelectric vibration energy gatherer group, successively through described rectification circuit and charging circuit, with the corresponding connection of positive and negative electrode of described storage battery;
The positive and negative electrode of described storage battery is through a control switch, with the corresponding connection of DC supply input of transformer station's emergency lighting system or primary line way switch DC operating system.
2. according to the self-service electric power system of single-store frame formula claimed in claim 1, it is characterized in that described individual layer general frame structure, be arranged on the connecting rod place between spray bar and the body of transformer.
3. according to the self-service electric power system of single-store frame formula described in claim 1 or 2, it is characterized in that the connecting rod place between spray bar and the body of described transformer, individual layer general frame structure described in longitudinal setting at least two groups respectively, between two groups of individual layer general frame structures, process clamping plate and fastening bolt and connecting rod fix as one, and form the vibrational energy collection assembly of double end dumbbell type structure.
4. according to the self-service electric power system of single-store frame formula claimed in claim 1, it is characterized in that described piezoelectric vibration energy gatherer is twin lamella cantilever beam structure piezoelectric vibration energy gatherer, drum organization piezoelectric vibration energy gatherer or big cymbals structure piezoelectric vibration energy gatherer.
5. according to the self-service electric power system of single-store frame formula claimed in claim 1, it is characterized in that described rectification circuit is voltage doubling rectifing circuit.
6. according to the self-service electric power system of single-store frame formula claimed in claim 1, it is characterized in that described charging circuit is the charging circuit of the fast mold filling formula of current limliting-constant voltage.
7. according to the self-service electric power system of single-store frame formula claimed in claim 1, it is characterized in that described storage battery is lithium battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420425610.1U CN204030710U (en) | 2014-07-30 | 2014-07-30 | The self-service electric power system of a kind of single-store frame formula |
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| CN201420425610.1U CN204030710U (en) | 2014-07-30 | 2014-07-30 | The self-service electric power system of a kind of single-store frame formula |
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