CN201682281U - Intelligent duplex magnetic control power saving device - Google Patents
Intelligent duplex magnetic control power saving device Download PDFInfo
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- CN201682281U CN201682281U CN2010201452056U CN201020145205U CN201682281U CN 201682281 U CN201682281 U CN 201682281U CN 2010201452056 U CN2010201452056 U CN 2010201452056U CN 201020145205 U CN201020145205 U CN 201020145205U CN 201682281 U CN201682281 U CN 201682281U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The utility model discloses an intelligent duplex magnetic control power saving device, which comprises a power energy-saving control loop with a three-phase power supply line, an intelligent information collection, processing and control system with an energy-saving control loop, and a temperature control and time control system with the energy-saving control loop; the power energy-saving control loop comprises a central control unit (CPU) (11) and a power circuit, wherein the power circuit is formed in the way that a pulse duration controller (6) and a sinusoidal wave former (7) are connected with a power amplifier (8); and the utility model is suitable for all electrical systems, and the current and the voltage applied to the electric equipment can be adjusted along with the variation of the actual load of the electric equipment in real time. No any harmonic pollution is caused to a power grid, and the original harmonic pollution in a power grid power supply system is eliminated, thereby achieving the reasonable combination between power saving effect and high-quality power grid power supply source, and high reliability.
Description
Technical field
The utility model relates to the field of energy-saving technology of electric power system medium power equipment and electric equipment operation, is particularly useful for the two merit magnetic control battery saving arrangements of a kind of intellectuality of motor, water pump, blower fan and electrical lighting system and electric equipment aspect.
Background technology
In the evolution of China's modernization construction at present, the development of electric power has become one of deciding factor of socio-economic development.In the GDP growth process of China, therefore the too high China's rapid economy development that had influence on of the energy consumption of per GDP develops the basic principle that electric power and saves energy will become China's long-run development from now on.
At present, all exist more energy waste phenomenon from electrical network conveying, block supply to the terminal temperature difference group.The first, the power station is the circuit loss of avoiding in the long distance power delivery process, transmit with higher voltage, reaches rated voltage to guarantee terminal temperature difference, causes virtual voltage often to be higher than the rated voltage of user's request.Second in the scope of block supply, promptly in the Mo Duan customer group, because the situation difference that goes into operation, has only the user of 70-80% carrying 100% supply of electric power usually, causes the dosage of electric power further superfluous.The 3rd; motor for a certain concrete unit; equipment operate as normal when protecting peak of power consumption; often require the output voltage of transformer to be higher than the rated voltage of motor; therefore in the running of this supply network, usually cause the power consumption of motor and the serious energy between the power supply amount of power supply state that do not match.Especially when motor is in zero load, underloading and moderate load, the situation of not matching of this energy will be more outstanding.
In order to solve the waste of energy problem of above-mentioned power consumption equipment, promptly begun Research on energy saving from 1840s abroad, China has also carried out corresponding power-saving technology research in the initial stage sixties in last century.Experienced the development in 60 years, up to the present, polytype power-saving technology and energy-saving device have successively appearred, as capacitance compensation, star angle conversion voltage regulation, single-circuit transformer step-down, silicon-controlled voltage regulation, reactor pressure regulation, inversion pressure regulation, harmonic wave and a series of power-saving techniques such as surge current inhibition and frequency control.But up to the present, these a series of power-saving techniques require inapplicable for many running status economize on electricitys of motor, as be operated in middle heavy duty, heavy duty, fully loaded and overload condition following time (its load is respectively 65-80%, 80-90%, 90-100%, 101-135%) when motor, when the power factor of motor operation is higher (0.65-0.98), when constant load and permanent torque motor are operated in middle heavy duty, heavy duty, fully loaded and overload condition following time or the like.And the quantity of the motor of this operating state and operation conditions accounts for society and has about 80% of motor total amount, so power-saving technology must be sought new breakthrough.
The electromagnetism regulation and control are the developing a kind of new methods that are used to regulate and control the electric current and the voltage swing of load (motor) of power-saving technique in modern age, and the reliability of its regulation and control and accuracy have determined the power saving rate of energy-saving device and the range size that is applicable to the economize on electricity field.Its basic principle is, utilizes the effect of inductance restricted electric current on daytime, the characteristic of consumed power not again, and with the critical component of inductance as power conversion, when power connection, inductance converts the electric energy that absorbs to magnetic field energy and is stored in the magnetic field.In certain running section, magnetic field energy progressively reduces again, and quickly falls to zero, and the original magnetic field energy that stores is returned power supply again in the inductance.The utility model utilizes this principle exactly, by the line design of science, and the accurate Calculation of various operational factors, in the intellectuality control of computer, realized effective power saving rate of battery saving arrangement.
Summary of the invention
Defective at above-mentioned prior art, the purpose of this utility model provides the two merit magnetic control battery saving arrangements of a kind of intellectuality, be applicable to the energy-conservation of motor, water pump, blower fan and electrical lighting system and electric equipment, and can utilize the accuracy controlling mode of electromagnetism, the power output of regulation and control power supply realizes the accurate coupling for the actual power consumption of all kinds of loads continuously.
In order to realize the foregoing invention purpose, the utility model adopts following technical scheme:
The two merit magnetic control battery saving arrangements of described intellectuality, power energy-saving control loop with three phase mains supply line, have information, the collection of energy-saving control loop, the intelligent control system of processing, have temperature control and time controlled system in the energy-saving control loop; Described power energy-saving control loop is made up of central controller CPU and motor circuit, described motor circuit is connected power amplifier by pulse width controller with sinusoidal wave former and forms, described pulse width controller power input is electrically connected three phase mains by air switch, the pulse width controller power output end is electrically connected with load by sinusoidal wave former, power amplifier, is electrically connected by A.C. contactor between pulse width controller power input and the power output end; The signal end of described pulse width controller, sinusoidal wave former is electrically connected with central controller CPU respectively; Described intelligent control system, the signal of telecommunication that is received by current sensor be by current amplifier, and one the tunnel is electrically connected with central controller CPU through the current digital amplifier, and another road is electrically connected with central controller CPU through the electric current comparison amplifier; Described temperature control and time controlled system are electrically connected with central controller CPU respectively by temperature controller and timer; Described central controller CPU, intelligent control system are electrically connected with low-tension supply.
The two merit magnetic control battery saving arrangements of described intellectuality, described pulse width controller, sinusoidal wave former and, the operating voltage of power amplifier is high, medium and low voltage, especially be 1140V, electric power system.
The two merit magnetic control battery saving arrangements of described intellectuality, described low-tension supply by air switch through transformer, rectifying tube provide+5V ,+8V ,+DC power supply of 15V.
The two merit magnetic control battery saving arrangements of described intellectuality, described air switch, A.C. contactor, current sensor, low-tension supply and pulse width controller are arranged on the top of cabinet.
The two merit magnetic control battery saving arrangements of described intellectuality, described central controller CPU, current amplifier, electric current comparison amplifier, current digital comparison amplifier, timer, temperature controller, power amplifier and synchronous tracer are arranged on the middle part of cabinet.
The two merit magnetic control battery saving arrangements of described intellectuality, described sinusoidal wave former and feedback device are arranged on the bottom of cabinet.
Owing to adopt aforesaid technical scheme, the utlity model has following beneficial effect:
The two merit magnetic control battery saving arrangements of this intellectuality, compared with prior art, by the intelligent control of the computer height of electronic circuit board, realize the output circuit control of pulse width controller, sinusoidal wave former, power amplifier, made the variation that is added in the actual load that electric current on the power consumption equipment and voltage can follow power consumption equipment in real time and adjusted.
When the actual load of power consumption equipment was very little, the electric current and the voltage that add thereon also can drop to very little.Otherwise when load increased, the supply power voltage of power supply and electric current also can increase thereupon, simultaneously by the intelligent control system of electronic circuit board, made the output power of the actual power consumption of power consumption equipment and power supply reach the effect of accurate coupling.In this intelligentized control procedure, accurate Calculation and the careful reasonable disposition of auxiliary element by various running parameters, realized bidirectional compensating function to the battery saving arrangement top and bottom, improve the power factor of circuit and power consumption equipment, realized the rational science combination of electromagnetism accuracy controlling, pulse width control and Computerized intelligent control.The major loop of this energy-saving device does not contain any electronic device, therefore reliability is very high, electrical network is not produced any harmonic pollution, can also eliminate original harmonic pollution in the mains supply system substantially, realized the reasonable combination of the high-quality power supply of power savings and mains supply preferably, compare with present existing other power-saving techniques, have unique technique characteristics and advantage, this battery saving arrangement can also be applicable to all using electricity systems.
Description of drawings
Fig. 1 is the structural representation of intelligent two merit magnetic control battery saving arrangements;
Fig. 2 is the control principle figure of intelligent two merit magnetic control battery saving arrangements.
1 air switch K1,2 current sensor IAV1, IBV1 and ICV1,3 current amplifier IAV2, IBV2 and ICV2,4 electric current comparison amplifier IETD, 5 current digital comparison amplifier ILTD, 6 pulse width controller IGTC, 7 sinusoidal wave former LP, 8 power amplifier LQ, 9 loads, 10 low-tension supplies, 11 central controller CPU, 12 temperature controller TP, 13 timer HT.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
As shown in Figure 1, 2, intelligent two merit magnetic control battery saving arrangements comprise cabinet and its inner polynary combination series controlling parts, are made up of three parts.
First, be mainly information gathering, information processing and information Control part comprise current sensor 2IAV1, IBV1 and ICV1, current amplifier 3IAV2, IBV2 and ICV2, electric current comparison amplifier 4IETD, electric current current digital comparison amplifier 5 ILTD and central controller 11 CPU; Secondly be the power circuit part, wherein motor circuit partly comprise air switch 1, A.C. contactor, control power circuit part branch comprise+5V ,+8V ,+low-tension supply 10 of 15V, directly supply with the DC power supply of central controller 11 CPU, electric current current digital comparison amplifier 5ILTD and electric current comparison amplifier 4IETD and current amplifier 3IAV2, IBV2 and ICV2 and corresponding indicator light.
Second portion is the power pack of the motor circuit of calculation control, comprises pulse width controller 6IGTC, sinusoidal wave former 7LP and power amplifier 8LQ.
Third part, i.e. the feedback part of the output power of three phase mains dump energy after the electromagnetism regulation and control are finished the accurate coupling of load 9M or the required real power of motor, i.e. feedback device.
As shown in Figure 1, air switch 1 is installed, A.C. contactor, current sensor 2 low-tension supplies 10, electric current and pulse width controller 6 on cabinet top; Current amplifier 3 and electric current comparison amplifier 4 are installed, current digital comparison amplifier 5, central controller 11, temperature controller 12, timer 13, power amplifier 8 in cabinet; Sinusoidal wave former 7 and feedback device PTD are installed in the bottom of cabinet.Wherein, described current sensor 2 is connected with current amplifier 3 respectively, and described current amplifier 3 is connected with comparison amplifier 4 with ICV2, and is connected with central controller 11 by electric current comparison amplifier 4; Described current sensor 2 respectively with current amplifier 3IAV2, IBV2 with after ICV2 is connected, current amplifier 3 with after electric current current digital comparison amplifier 5 is connected, is connected with central controller 11 again again; Described pulse width controller 6 is connected with sinusoidal wave former 7 with central controller 11 respectively; Described sinusoidal wave former 7 is connected with pulse width controller 6 and power amplifier 8 respectively again, and sinusoidal wave former 7 is connected with central controller 11 separately again simultaneously; Described temperature controller 12 is connected with central controller 11 respectively again with timer 13; Described low-tension supply 10+5V ,+8V ,+15V is connected with electric current current digital comparison amplifier 5, temperature controller 12 and timer 13 with central controller 11, current sensor 2 and current amplifier 3 and electric current comparison amplifier 4 respectively again.
As shown in Figure 2, described central controller 11CPU is by power circuit, constitute with voltage that links to each other with the amplifier tube base stage and electric current and voltage control circuit with its signal amplification circuit that is coupled, described central controller 11CPU is connected with sinusoidal wave former 7LP by pulse width controller 6IGTC, sinusoidal wave former 7LP is connected with output loading 9M or motor by power amplifier 8LQ again, and magnetic force control and the adjusting part of sinusoidal wave former 7LP are connected with central controller 11CPU separately again.
Three and the current sensor 2IAV1, the IBV1 that connect and ICV1 and three and the current amplifier 3IAV2, the IBV2 that connect are with after ICV2 is connected respectively, three and the current amplifier 3IAV2, the IBV2 that connect are connected with electric current comparison amplifier 4IETD respectively again with ICV2, and join by electric current comparison amplifier and central controller 11CPU.
Three and the current sensor 2IAV1, the IBV1 that connect and ICV1 and three and the current amplifier 3IAV2, the IBV2 that connect be with after ICV2 is connected respectively, and three and the current amplifier 3IAV2, the IBV2 that connect are connected with central controller 11CPU respectively with after electric current current digital comparison amplifier 5ILTD is connected again with ICV2 again.
Be connected in series in the three phase mains electric power system that constitutes by air switch 1K1, A.C. contactor TR, pulse width controller 6IGTC, sinusoidal wave former 7LP and power amplifier 8LQ, described feedback device PTD correspondence respectively is connected between pulse width controller 6IGTC and the sinusoidal wave former 7LP again.
Sinusoidal wave former 7LP is connected with pulse width controller 6IGTC and power amplifier 8LQ, and pulse width controller 6IGTC and sinusoidal wave former 7LP are connected with central controller 11CPU respectively; Sinusoidal wave former 7LP is connected with load M or motor by power amplifier 8LQ, forms the energy-saving control loop of the power-control section of three phase mains supply line.
In original line construction inconvenience, only change under the situation of the rated value of electronic devices and components and the specification that is connected lead the control of can in the electric power system of 380V, 660V, 1140V, 3000V, 6000V, 9000V, 10000V, 13800V and 15000V, economizing on electricity of its operating voltage.
Its working method is as follows:
1. after opening air switch 1,, make equipment begin to enter three-phase alternating current by A.C. contactor K2.After opening P cock and startup " button ", equipment promptly begins operate as normal, and the power consumption equipment that is driven promptly begins operate as normal as motor, light fixture, electrical equipment etc.
2. after starting " button " unlatching, when electric current passes through current sensor 2IAV1, IBV1 and ICV1, promptly produce the electric current and the voltage of induction, this signal is after current amplifier 3IAV2, IBV2 and ICV2 enhancing and handling, deliver to central controller 11CPU again, produce respective digital information, this control information is delivered to sinusoidal wave former after after the power amplifier amplification after central controller 11CPU is sent to pulse width controller 6IGTC, directly be sent to load 9 motor, then whole system promptly begins operate as normal in the power circuit of Energy Saving Control.
3. when the electric current of current sensor 2IAV1, IBV1 and ICV1 reduces, after it is felt emerging current amplifier 3IAV2, IBV2 and ICV2 and amplifies, after promptly amplifying and handling, promptly be sent to central controller 11CPU through current digital comparison amplifier 5ILTD.After the analysis-by-synthesis and processing through central controller 11CPU, i.e. transmission and control information is to pulse width controller 6IGTC, and then pulse width controller can increase according to the width of instruction with pulsewidth, and then the electric current of its output is corresponding reduces.Corresponding the reducing of exporting behind this electric current that reduces sinusoidal wave former 7LP of process and the power amplifier of electric current, corresponding the reducing of operating current that motor obtains.Otherwise, when the electric current of transducer IAV1, IBV1 and ICV1 induction increases, then can correspondingly increase by the output current behind pulse width controller 6IGTC and sinusoidal wave former 7LP and the power amplifier.
4. when pulse width controller breaks down, or when the operation of some motor does not need to modulate pulsewidth, then A.C. contactor K3 can connect automatically, the supply line of three phase mains directly is connected with load 9 with power amplifier 8LQ by sine-wave generator LP, can guarantee motor normal power-saving running under another running status, its detailed process is A.C. contactor K2 automatic disconnection at this moment, K3 connects automatically, current sensor 2IAV1, the induced current of IBV1 and ICV1 and voltage signal, through current amplifier 3IAV2, after IBV2 and ICV2 handle, after being sent to the further processing of electric current current digital comparison amplifier 5ILTD, be sent to central controller 11CPU, then control information promptly takes place to sinusoidal wave former 7LP in central controller 11CPU.Magnetic force control section among the sinusoidal wave former 7LP according to central controller 11CPU and control information, can be adjusted the intensity of magnetic force automatically continuously, and when magnetic force increased, corresponding current/voltage increased; Magnetic force spare hour, corresponding output current voltage reduces, make the actual power consumption of power output by sinusoidal wave former 7LP and power amplifier 8LQ and load 9 reach the effect of accurate coupling, and the electric current and the voltage waveform of power supply output are the sinusoidal waveform of standard.
5. when pulse width controller 6IGTC is opened and entered to three phase mains, original high order harmonic component and surge current also enter wherein immediately in the electrical network, at this moment pulse width controller not only can not be eliminated these power pollutions, and also will produce new harmonic wave in pulse-width modulation process.But when the high order harmonic component of these stacks and surge current enter sinusoidal wave former with three-phase current, by the accurate control of the electromagnetism regulation and control in this device and energy exchange and the inductor filter in the electromagnetic conversion, can eliminate the pollution of these surge currents and high order harmonic component basically.And the sinusoidal waveform that the voltage and current waveform that makes its output is near the mark basically.
6. when overcurrent, overvoltage and three-phase imbalance situation take place in the equipment operation, after then current sensor 2IAV1, IBV1 and ICV1 promptly passed through current amplifier 3IAV2, IBV2 and ICV2 processing and amplifying with this information in real time, 4IETD was sent to central controller 11CPU after processing through the electric current comparison amplifier.Promptly send after central controller 11CPU analysis-by-synthesis and processing and control signal to K2, then K2 disconnects, and equipment can be out of service immediately, and control rate can reach 10 milliseconds, thereby guarantees the safety of motor.
7. when load 9 had specific local space that will go and place for some to temperature, then temperature controller and timer can be set the specific temperature control of a cover and the software program of time measurement according to the temperature and time requirement in this place.When equipment operation, temperature control and time measurement information can directly be sent to central controller 11CPU.After it is handled through central authorities' control, promptly send out concrete control information to temperature being controlled the place that particular requirement is arranged.Temperature when this place is higher than, or when being lower than a certain particular value, then refrigerating system or heating system promptly begin to be freezed or heat in this place, when its temperature is below or above a certain particular value, then refrigerating system or heating system promptly stop refrigeration or heating, along with the change of temperature controlling mode, can make this place reach better power savings.In this course, timer can be to the time of refrigeration or heating, accumulative total refrigeration or heating time, and the dwell time of refrigeration or heating, and the time of year round cooling or heating and dwell time are carried out comprehensive record.
8. a kind of intelligent electromagnetism accuracy controlling formula efficient electricity-saving device described in the utility model, its bidirectional compensating function are to realize by following program:
When power connection, the inductance of sinusoidal wave former is storage power at first, continuous storage and constantly conversion along with electromagnetic energy, accurate in service in the Computerized intelligent control system, energy constantly compensates motor by power amplifier to its lower end, simultaneously the pulse width controller by its upper end and 1 pair of supply line of air switch compensates or continue to compensate by 1 pair of supply line of air switch when K3 connects again.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (6)
1. two merit magnetic control battery saving arrangements of an intellectuality, it is characterized in that: power energy-saving control loop with three phase mains supply line, have information, the collection of energy-saving control loop, the intelligent control system of processing, have temperature control and time controlled system in the energy-saving control loop; Described power energy-saving control loop is made up of with motor circuit central controller CPU (11), described motor circuit is connected power amplifier (8) by pulse width controller (6) with sinusoidal wave former (7) and forms, described pulse width controller power input is electrically connected three phase mains by air switch K1 (1), the pulse width controller power output end is electrically connected with load (9) by sinusoidal wave former, power amplifier, is electrically connected by A.C. contactor K2 between (6) pulse width controller power input and the power output end; The signal end of described pulse width controller, sinusoidal wave former is electrically connected with central controller CPU (11) respectively; Described intelligent control system passes through current amplifier (3) by the signal of telecommunication that current sensor (2) receives, one the tunnel is electrically connected with central controller CPU through current digital amplifier (5), and another road is electrically connected with central controller CPU through electric current comparison amplifier (4); Described temperature control and time controlled system are electrically connected with central controller CPU respectively by temperature controller (12) and timer (13); Described central controller CPU, intelligent control system are electrically connected with low-tension supply (10).
2. the two merit magnetic control battery saving arrangements of intellectuality according to claim 1, it is characterized in that: the operating voltage of described pulse width controller (6), sinusoidal wave former (7) and power amplifier is a high, medium and low voltage, is specially the electric power system of 1140V.
3. the two merit magnetic control battery saving arrangements of intellectuality according to claim 1 is characterized in that: described low-tension supply (10) by air switch through transformer, rectifying tube provide+5V ,+8V ,+DC power supply of 15V.
4. the two merit magnetic control battery saving arrangements of intellectuality according to claim 1, it is characterized in that: described air switch K1 (1), A.C. contactor, current sensor (2), low-tension supply (10) and pulse width controller (6) are arranged on the top of cabinet.
5. the two merit magnetic control battery saving arrangements of intellectuality according to claim 1, it is characterized in that: described central controller CPU (11), current amplifier (3), electric current comparison amplifier (4), current digital comparison amplifier (5), timer, temperature controller, power amplifier and synchronous tracer are arranged on the middle part of cabinet.
6. the two merit magnetic control battery saving arrangements of intellectuality according to claim 1, it is characterized in that: described sinusoidal wave former (7) and feedback device are arranged on the bottom of cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452056U CN201682281U (en) | 2010-03-31 | 2010-03-31 | Intelligent duplex magnetic control power saving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452056U CN201682281U (en) | 2010-03-31 | 2010-03-31 | Intelligent duplex magnetic control power saving device |
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| CN201682281U true CN201682281U (en) | 2010-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107765A (en) * | 2011-11-10 | 2013-05-15 | 洛阳沃德节电科技开发有限公司 | Controlling system of power saving device |
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2010
- 2010-03-31 CN CN2010201452056U patent/CN201682281U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107765A (en) * | 2011-11-10 | 2013-05-15 | 洛阳沃德节电科技开发有限公司 | Controlling system of power saving device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20130331 |