CN205489795U - Generator and mains power supply conversion control system - Google Patents
Generator and mains power supply conversion control system Download PDFInfo
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- CN205489795U CN205489795U CN201620278506.3U CN201620278506U CN205489795U CN 205489795 U CN205489795 U CN 205489795U CN 201620278506 U CN201620278506 U CN 201620278506U CN 205489795 U CN205489795 U CN 205489795U
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Abstract
The utility model provides a pair of generator and mains power supply conversion control system, include: the control unit for acquire the commercial power to the status signal of load power supply, according to status signal output control signal, this control signal includes that the generator opens and stops signal and the load switching signal that supplies power, the generator opens and stops the unit for the generator of receiving control unit output opens and stops signal control generator pneumatics or flame -out, the switch unit for the load power supply switching signal of receiving control unit output and the supply access of control load change between commercial power and generator, through above -mentioned structure, can accomplish generator power supply and mains supply's switching automatically when the mains supply interrupt perhaps resumes, need not artificial intervention, and short response time is switching the in -process moreover and can guarantee the reliable start -up of generator and reliably shut down that job stabilization is reliable.
Description
Technical field
This utility model relates to a kind of switched system, particularly relates to a kind of electromotor and mains-supplied conversion and control
System.
Background technology
Electromotor is widely used in modern production life as stand-by power supply, such as commercial Application, high building
Elevator standby powers etc., in prior art, the switching between electromotor and civil power generally uses the side of manually booting
Formula, when, after mains failure, then manually booting electromotor and be operated, after city power recovery powers, then make
Electromotor quits work, and this mode is possible under the occasions such as general domestic, but in commercial production
In, there is in the middle of above-mentioned switching mode bigger time interval, thus commercial production can be caused serious
Loss in efficiency even potential safety hazard, although along with the development of technology, people gradually propose automatic switchover system
System or device, but there are the following problems for existing automatic switchover technology: poor stability, when electrical network is powered
During interruption, electromotor can not accurately identify enabling signal, and electromotor can not be reliable after power system restoration is powered
Shut down, thus have a strong impact on use.
It is, therefore, desirable to provide a kind of new electromotor and mains-supplied switching control system, in electrical network is powered
Disconnected or generator powered can be automatically performed when recovering and switching that electrical network is powered, it is not necessary to manual intervention, ring
Between Ying Shi short, and in handoff procedure, ensure that electromotor reliably starts and reliable shutdown, work is steady
Fixed reliable.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of electromotor and mains-supplied switching control system,
Generator powered can be automatically performed and switching that electrical network is powered when electrical network power failure or when recovering, it is not necessary to
Manual intervention, response time is short, and ensure that in handoff procedure electromotor reliably starts and reliably
Shut down, stable and reliable in work.
A kind of electromotor that this utility model provides and mains-supplied switching control system, including:
Control unit, for obtaining the status signal that civil power powers to the load, controls according to status signal output
Signal, this control signal includes electromotor start stop signal and load supplying switching signal；
Electromotor start and stop unit, the electromotor start stop signal for reception control unit output controls electromotor gas
Dynamic or flame-out；
Switch unit, the load supplying switching signal exported for reception control unit also controls the power supply loaded
Path is changed between civil power and electromotor, by said structure, the energy when electrical network power failure or recovery
Enough being automatically performed generator powered and switching that electrical network is powered, it is not necessary to manual intervention, response time is short, and
In handoff procedure, ensure that electromotor reliably starts and reliable shutdown, stable and reliable in work.
Further, described electromotor start and stop unit includes:
Temperature detecting module, for detecting the temperature of electromotor and to control unit output temperature signal；
Stepper motor driving circuit, the startup control signal exported for reception control unit also drives stepping electricity
Machine is turned on or off air door；
Starting motor-drive circuit, the startup control signal for reception control unit output drives and starts motor
Work and start electromotor；
Rotating speed and flame-out line break-make testing circuit, for detecting engine speed and the make-and-break signal of flame-out line
And export to control unit；
Flameout control circuit, the flame-out control signal exported for reception control unit also controls engine misses,
By this structure, when control unit output enabling signal, according to the temperature letter of temperature detecting module output
Number control the unlatching of air door and open degree, according to the rotating speed letter of rotating speed with the output of flame-out line break-make testing circuit
Number such that it is able to the accurately startup of electromotor enter into duty, when needs are flame-out, by flame-out
Control circuit, it is possible to accurately control engine misses.
Further, described flameout control circuit include resistance R11, optocoupler U1, resistance R12, resistance 13,
Resistance R14, resistance R15, resistance R16, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C8, audion
Q4, diode D4, diode D5 and controllable silicon SCR 1；
The positive pole of the light emitting diode of described optocoupler U1 connects power supply by resistance R11, the luminescence two of optocoupler U1
The negative pole of pole pipe is connected with control unit, and the negative pole of the light emitting diode of optocoupler U1 passes through electric capacity C5 and electric capacity
Ground connection after C6 parallel connection, the colelctor electrode of the phototriode of optocoupler U1 is connected with the base stage of audion Q4, optocoupler
The grounded emitter of the phototriode of U1, the grounded collector of audion Q4, the base of phototriode Q4
Pole is connected with emitter stage by resistance R12, and the emitter stage of audion Q4 is connected with the negative pole of diode D4,
The positive pole of audion D4 is connected with electric capacity C7 one end, and the other end of electric capacity C7 passes through resistance R15 and controllable silicon
The control pole of SCR1 connects, the plus earth of controllable silicon SCR 1, and the negative electrode of controllable silicon SCR 1 is with flame-out line even
Connecing, the points of common connection between resistance R15 with electric capacity C7 is connected with the negative pole of diode D5, diode D5
Positive pole be connected with flame-out line, one end of resistance R14 is connected to the negative pole of diode D5, and the other end is connected to
The positive pole of diode D4, the positive pole of diode D4 is connected by the positive pole of resistance R13 and diode D5, electricity
The points of common connection of resistance R15 and controllable silicon SCR 1 is connected by the positive pole of electric capacity C8 and diode D5；Wherein,
Audion Q4 is PNP type triode；When needs are flame-out, control unit output low level control signal, light
Coupling U1 turns on, now audion Q4 conducting, and electric capacity C7 is entered into charged state by the positive voltage of the line that stops working,
When the voltage of electric capacity C7 reaches the conducting voltage of controllable silicon SCR 1, and controllable silicon SCR 1 turns on, flame-out line is connect
Ground, thus ensure that electromotor can reliable and stable stop working, and then can effectively prevent electromotor from repeatedly starting.
Further, described startup motor-drive circuit includes diode D7, diode D8, resistance R27, electricity
Resistance R28, resistance R29, resistance R30, audion Q7, audion Q8 and audion Q9；
The positive pole of diode D7 is connected to the collection of the positive pole of accumulator, the negative pole of diode D7 and audion Q7
Electrode connect, the transmitting of audion Q7 extremely start motor-drive circuit outfan and with start motor defeated
Enter end connect, the base stage of audion Q7 is connected with the colelctor electrode of audion Q8, the emitter stage of audion Q8 and
The colelctor electrode of audion Q7 connects, and the base stage of audion Q8 is by the colelctor electrode of resistance R28 and audion Q9
Connecting, the base stage of audion Q8 is connected also by the negative pole of resistance R27 with diode D7, audion Q9
Base stage be connected with control unit by resistance R29, the grounded emitter of audion Q9, audion Q9's
Base stage passes through the transmitting of resistance R30 ground connection, the plus earth of described diode D8, negative pole and audion Q7
Pole connects, and wherein audion Q8 is PNP type triode, when control unit output engine starts injunctive,
Audion Q9 turns on, thus audion Q7 and Q8 the most sequentially turns on, and the voltage of accumulator output is by three poles
Pipe Q7 is loaded into startup motor, by this structure, it is possible to ensure that electromotor starts smoothly, so that it is guaranteed that send out
The reliability of motivation startup and stability.
Further, rotating speed and flame-out line break-make testing circuit include resistance R16, resistance R17, resistance R18,
Resistance R19, resistance R20, resistance R21, resistance R22, resistance R23, resistance R24, electric capacity C9, electricity
Hold C10, electric capacity C11, electric capacity C12, diode D6, audion Q5, audion Q6 and optocoupler U2；
The colelctor electrode of the phototriode of described optocoupler U2 connects power supply by resistance R16, and optocoupler U2's is photosensitive
The colelctor electrode of audion is also connected with control unit, and the colelctor electrode of the phototriode of optocoupler U2 passes through electric capacity
C9 ground connection, the grounded emitter of the phototriode of optocoupler U2, the positive pole of the light emitting diode of optocoupler U2 leads to
The negative pole crossing resistance R18 and diode D6 is connected, the plus earth of diode D6, the luminescence two of optocoupler U2
The negative pole of pole pipe is connected with flame-out line, and after resistance R17 and electric capacity C10 parallel connection, one end connects with the positive pole of optocoupler U2
Connecing, the other end is connected with flame-out line；
The base stage of audion Q5 is connected with flame-out line by resistance R19, and the emitter stage of audion Q5 connects power supply,
The base stage of audion Q5 is connected with emitter stage by resistance R20, and the colelctor electrode of audion Q5 passes through resistance R21
Being connected with one end of resistance R22, the other end of resistance R22 is connected with the base stage of audion Q6, resistance R21
Resistance R23 is passed through by electric capacity C11 ground connection, the base stage of audion Q6 with the points of common connection of resistance R22
Ground connection, the colelctor electrode of audion Q6 connects power supply, the colelctor electrode of audion Q6 and flame-out line by resistance R24
Connecting, the colelctor electrode of audion Q6 passes through electric capacity C12 ground connection, and wherein Q5 is PNP type triode；Wherein,
Rotating speed measring is for when negative voltage occurs in flame-out line, and the LEDs ON of optocoupler U2, phototriode is led
Logical, the current potential of the colelctor electrode of optocoupler U2 declines, and control unit is determined by the time span of detection trailing edge to be sent out
The rotating speed of motivation；Flame-out line break-make detection: when engine work, the voltage of flame-out line output makes three
Pole pipe Q5 turns on, thus audion Q6 conducting, the misfire detection end input of control unit is low level, from
And control unit is good according to judge now the to stop working connection of line of the low level of input, by said structure, one
The startup that aspect is electromotor controls to provide reliable reference signal, is on the other hand able to ensure that when electromotor supplies
When electricity is transferred to mains-supplied, electromotor can stop working accurately and reliably.
Further, the power module powered to control unit and electromotor start and stop unit, described electricity are also included
Source module includes diode D1, diode D2, diode D3, stabilivolt DW1, stabilivolt DW2, resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance
R9, resistance R10, resistance R11, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, three
Pole pipe Q1, audion Q2 and audion Q3；
The positive pole of diode D1 and diode D2 is all connected with control unit, diode D1 and diode D2
Negative pole connect, after resistance R1 and resistance R2 parallel connection, one end is connected with the negative pole of diode D1, the other end and
The colelctor electrode of audion D1 connects, the grounded emitter of audion Q1, and the colelctor electrode of audion Q1 is by electricity
The base stage of resistance R5 and audion Q2 is connected, and the base stage of audion Q1 passes through resistance R4 ground connection, audion Q2
Grounded emitter, the base stage of audion Q1 pass through electric capacity C1 ground connection, the base stage of audion Q1 passes through resistance
R6 ground connection, the colelctor electrode of audion Q2 is connected by the base stage of resistance R7 and audion Q3, audion Q3
Base stage be connected with emitter stage by resistance R8, the emitter stage of audion Q3 is connected with the negative pole of diode D3,
The positive pole of diode D3 is connected with accumulator, and the negative pole of diode D3 is by resistance R3 and stabilivolt DW1
Negative pole connect, the positive pole of stabilivolt DW1 is connected with the base stage of audion Q1, the colelctor electrode of audion Q3
Being connected with one end of resistance R11, the other end of resistance R11 is as the first outfan of power module and exports
5V voltage, the colelctor electrode of audion Q3 is as the second outfan of power module and exports 12V voltage, electricity
Resistance R10 and resistance R11 form parallel-connection structure, and the colelctor electrode of audion Q3 passes through electric capacity C2 ground connection, and first
Outfan is connected with the negative pole of stabilivolt DW2, the plus earth of stabilivolt DW2, and the first outfan is by electricity
Holding ground connection after C3 and electric capacity C4 parallel connection, wherein, audion Q3 is PNP type triode；Wherein, stabilivolt
DW1, audion Q1 and audion Q2 shield, when input voltage is higher than setting voltage, stabilivolt
DW1 turns on, thus audion Q1 and audion Q2 must conduct, the base stage of audion Q3 now current potential
Decline, enter cut-off, thus the posterior member such as stabilivolt DW2 are played a good protection, by upper
State structure, on the one hand can outwards export stable power supply, it is ensured that whole control system works continually and steadily,
On the other hand, it is possible to power supply self is played a good protection.
Further, also include that anti-driver element of blowing out, described anti-driver element of blowing out include relay J 1, electricity
Resistance R31, resistance R32, resistance R33, resistance R34, electric capacity C15, audion Q10 and diode D9；
The base stage of described audion Q10 is connected with control unit by resistance R31, the base stage of audion Q10
By resistance R32 ground connection, the grounded emitter of audion Q10, the colelctor electrode of audion Q10 passes through relay
The coil of device J1 is connected with power supply, and the colelctor electrode of audion Q10 is connected with the positive pole of diode D9, two poles
The negative pole of pipe D9 is connected with power supply, and the movable contact of relay J 1 is connected and relay J 1 with anti-electromagnetic valve of blowing out
Movable contact be connected with one end of electric capacity C15 also by after resistance R33 and resistance R34 parallel connection, electric capacity C15
The other end be connected with a wherein stationary contact of relay J 1, another stationary contact of relay J 1 is blown out with anti-
Electromagnetic valve connects；By said structure, when phenomenon, control unit output control signal occurs blowing out in electromotor
Making audion Q10 turn on, relay J 1 obtains electric work, and electromagnetic valve of anti-blowing out disconnects fuel oil, thus to sending out
Motivation plays a good protection, and resistance R33, resistance R34 and electric capacity C15 continue for release
The pulse voltage that electrical equipment J1 coil produces when obtaining electric or power-off, so that anti-driver element of blowing out stablizes work
Make.
Further, the start stop signal testing circuit for detecting electromotor start and stop, described start stop signal are also included
Testing circuit includes diode D10, resistance R40, resistance R41, resistance R42, electric capacity C16, electric capacity C17
And audion Q13；
The described positive pole of diode D10 is connected with the ignition coil of electromotor, and negative pole passes through resistance R40 and three
The base stage of pole pipe Q13 connects, and the base stage of audion Q13 passes through resistance R41 ground connection, the base of audion Q13
Electric capacity C16 ground connection, the grounded emitter of audion Q13 are passed through in pole, and the colelctor electrode of audion Q13 is by electricity
Resistance R42 connects power supply, and the colelctor electrode of audion Q13 is connected with control unit, and the colelctor electrode of audion Q13 leads to
Cross electric capacity C17 ground connection；When the engine starts, audion Q13 turns on, and the current collection of audion Q13 is extremely
Low level, according to this low level signal, control unit judges whether electromotor starts, thus carries for subsequent control
For accurate reference.
Further, also include indicating fault drive circuit, described indicating fault drive circuit include resistance R35,
Resistance R36, resistance R37, resistance R38, resistance R39, audion Q11 and audion Q12；
The base stage of described audion Q11 is connected with control unit by resistance R35, described audion Q11's
Base stage passes through resistance R36 ground connection, the grounded emitter of described audion Q11, the colelctor electrode of audion Q11
Being connected by the base stage of resistance R37 with audion Q12, the emitter stage of audion Q12 is connected with power supply, electricity
The two ends of resistance R38 are connected to emitter stage and the colelctor electrode of audion Q12, the colelctor electrode of audion Q12
It is connected with LED light by resistance R39, after electromotor or this control system break down, controls
Unit output control signal, audion Q12 turns on and also powers to LED light, and LED light obtains electric bright
Lamp indicating fault status, ratio notifies that staff carries out repair and maintenance the most in time.
Further, described control unit is chip MB95F564K.
The beneficial effects of the utility model: electromotor of the present utility model and mains-supplied switching control system,
Generator powered can be automatically performed and switching that electrical network is powered when electrical network power failure or when recovering, it is not necessary to
Manual intervention, response time is short, and ensure that in handoff procedure electromotor reliably starts and reliably
Shut down, stable and reliable in work.
Accompanying drawing explanation
With embodiment, this utility model is further described below in conjunction with the accompanying drawings:
Fig. 1 is the theory diagram of utility model.
Fig. 2 is control unit structural representation of the present utility model.
Fig. 3 is flameout control circuit schematic diagram of the present utility model.
Fig. 4 is startup motor-drive circuit schematic diagram of the present utility model.
Fig. 5 is rotating speed of the present utility model and flame-out line break-make testing circuit schematic diagram.
Fig. 6 is the circuit theory diagrams of power module of the present utility model.
Fig. 7 is anti-driving circuit principle figure of blowing out of the present utility model.
Fig. 8 is start stop signal testing circuit schematic diagram of the present utility model.
Fig. 9 is indicating fault driving circuit principle figure of the present utility model.
Figure 10 is stepper motor driving circuit schematic diagram of the present utility model.
Detailed description of the invention
Fig. 1 is the theory diagram of utility model, and Fig. 2 is control unit structural representation of the present utility model,
Fig. 3 is flameout control circuit schematic diagram of the present utility model, and Fig. 4 is that startup motor of the present utility model drives
Circuit theory diagrams, Fig. 5 is rotating speed of the present utility model and flame-out line break-make testing circuit schematic diagram, and Fig. 6 is
The circuit theory diagrams of power module of the present utility model, Fig. 7 is that anti-drive circuit of blowing out of the present utility model is former
Reason figure, Fig. 8 is start stop signal testing circuit schematic diagram of the present utility model, and Fig. 9 is event of the present utility model
Barrier instruction driving circuit principle figure, Figure 10 is stepper motor driving circuit schematic diagram of the present utility model, such as figure
Shown in, a kind of electromotor that this utility model provides and mains-supplied switching control system, including:
Control unit, for obtaining the status signal that civil power powers to the load, controls according to status signal output
Signal, this control signal includes electromotor start stop signal and load supplying switching signal, wherein, described control
Unit is chip MB95F564K, and the corresponding annexation between the pin of control unit with each circuit module is such as
Shown in figure, i.e. each pin of control unit is connected with the input being marked with letter designation in each circuit or outfan；
The status signal of mains-supplied can pass through the electrical signal detection equipment Inspection such as current sensor, current transformer
And export to control unit, such as: when civil power is in continued power state, and detection equipment is defeated to control unit
Go out high level signal, such as commercial power interruption, then detection equipment box control unit output low level signal；
Electromotor start and stop unit, the electromotor start stop signal for reception control unit output controls electromotor gas
Dynamic or flame-out；
Switch unit, the load supplying switching signal exported for reception control unit also controls the power supply loaded
Path is changed between civil power and electromotor, wherein, switch unit use switching relay or existing its
His switching circuit；By said structure, can be automatically performed when electrical network power failure or recovery and send out
The switching that motor is powered and electrical network is powered, it is not necessary to manual intervention, response time is short, and in handoff procedure
Ensure that electromotor reliably starts and reliable shutdown, stable and reliable in work.
In the present embodiment, described electromotor start and stop unit includes:
Temperature detecting module, for detecting the temperature of electromotor and to control unit output temperature signal, wherein,
Temperature detecting module can use temperature sensor or other temperature sensing circuits, for prior art, at this
Described the most in detail；
Stepper motor driving circuit, the startup control signal exported for reception control unit also drives stepping electricity
Machine is turned on or off air door, wherein, and the temperature of the electromotor that control unit exports according to temperature detecting module
Signal exports corresponding control command and controls the angle that stepper motor driving circuit driving air door rotates to set
Being turned on or off of degree, i.e. air door, wherein, opens and includes half-open and standard-sized sheet two states；
Starting motor-drive circuit, the startup control signal for reception control unit output drives and starts motor
Work and start electromotor；
Rotating speed and flame-out line break-make testing circuit, for detecting engine speed and the make-and-break signal of flame-out line
And export to control unit；
Flameout control circuit, the flame-out control signal exported for reception control unit also controls engine misses,
By this structure, when control unit output enabling signal, according to the temperature letter of temperature detecting module output
Number control the unlatching of air door and open degree, according to the rotating speed letter of rotating speed with the output of flame-out line break-make testing circuit
Number such that it is able to the accurately startup of electromotor enter into duty, when needs are flame-out, by flame-out
Control circuit, it is possible to accurately control engine misses；
In the present embodiment, described flameout control circuit includes resistance R11, optocoupler U1, resistance R12, resistance
13, resistance R14, resistance R15, resistance R16, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C8, three
Pole pipe Q4, diode D4, diode D5 and controllable silicon SCR 1；
The positive pole of the light emitting diode of described optocoupler U1 connects power supply by resistance R11, the luminescence two of optocoupler U1
The negative pole of pole pipe is connected with control unit, and the negative pole of the light emitting diode of optocoupler U1 passes through electric capacity C5 and electric capacity
Ground connection after C6 parallel connection, the colelctor electrode of the phototriode of optocoupler U1 is connected with the base stage of audion Q4, optocoupler
The grounded emitter of the phototriode of U1, the grounded collector of audion Q4, the base of phototriode Q4
Pole is connected with emitter stage by resistance R12, and the emitter stage of audion Q4 is connected with the negative pole of diode D4,
The positive pole of audion D4 is connected with electric capacity C7 one end, and the other end of electric capacity C7 passes through resistance R15 and controllable silicon
The control pole of SCR1 connects, the plus earth of controllable silicon SCR 1, and the negative electrode of controllable silicon SCR 1 is with flame-out line even
Connecing, the points of common connection between resistance R15 with electric capacity C7 is connected with the negative pole of diode D5, diode D5
Positive pole be connected with flame-out line, one end of resistance R14 is connected to the negative pole of diode D5, and the other end is connected to
The positive pole of diode D4, the positive pole of diode D4 is connected by the positive pole of resistance R13 and diode D5, electricity
The points of common connection of resistance R15 and controllable silicon SCR 1 is connected by the positive pole of electric capacity C8 and diode D5；Wherein,
Audion Q4 is PNP type triode；When needs are flame-out, control unit output low level control signal, light
Coupling U1 turns on, now audion Q4 conducting, and electric capacity C7 is entered into charged state by the positive voltage of the line that stops working,
When the voltage of electric capacity C7 reaches the conducting voltage of controllable silicon SCR 1, and controllable silicon SCR 1 turns on, flame-out line is connect
Ground, thus ensure that electromotor can reliable and stable stop working, and then can effectively prevent electromotor from repeatedly starting.
In the present embodiment, described startup motor-drive circuit include diode D7, diode D8, resistance R27,
Resistance R28, resistance R29, resistance R30, audion Q7, audion Q8 and audion Q9；
The positive pole of diode D7 is connected to the collection of the positive pole of accumulator, the negative pole of diode D7 and audion Q7
Electrode connect, the transmitting of audion Q7 extremely start motor-drive circuit outfan and with start motor defeated
Enter end connect, the base stage of audion Q7 is connected with the colelctor electrode of audion Q8, the emitter stage of audion Q8 and
The colelctor electrode of audion Q7 connects, and the base stage of audion Q8 is by the colelctor electrode of resistance R28 and audion Q9
Connecting, the base stage of audion Q8 is connected also by the negative pole of resistance R27 with diode D7, audion Q9
Base stage be connected with control unit by resistance R29, the grounded emitter of audion Q9, audion Q9's
Base stage passes through the transmitting of resistance R30 ground connection, the plus earth of described diode D8, negative pole and audion Q7
Pole connects, and wherein audion Q8 is PNP type triode, when control unit output engine starts injunctive,
Audion Q9 turns on, thus audion Q7 and Q8 the most sequentially turns on, and the voltage of accumulator output is by three poles
Pipe Q7 is loaded into startup motor, by this structure, it is possible to ensure that electromotor starts smoothly, so that it is guaranteed that send out
The reliability of motivation startup and stability.
In the present embodiment, rotating speed and flame-out line break-make testing circuit include resistance R16, resistance R17, resistance
R18, resistance R19, resistance R20, resistance R21, resistance R22, resistance R23, resistance R24, electric capacity C9,
Electric capacity C10, electric capacity C11, electric capacity C12, diode D6, audion Q5, audion Q6 and optocoupler U2；
The colelctor electrode of the phototriode of described optocoupler U2 connects power supply by resistance R16, and optocoupler U2's is photosensitive
The colelctor electrode of audion is also connected with control unit, and the colelctor electrode of the phototriode of optocoupler U2 passes through electric capacity
C9 ground connection, the grounded emitter of the phototriode of optocoupler U2, the positive pole of the light emitting diode of optocoupler U2 leads to
The negative pole crossing resistance R18 and diode D6 is connected, the plus earth of diode D6, the luminescence two of optocoupler U2
The negative pole of pole pipe is connected with flame-out line, and after resistance R17 and electric capacity C10 parallel connection, one end connects with the positive pole of optocoupler U2
Connecing, the other end is connected with flame-out line；
The base stage of audion Q5 is connected with flame-out line by resistance R19, and the emitter stage of audion Q5 connects power supply,
The base stage of audion Q5 is connected with emitter stage by resistance R20, and the colelctor electrode of audion Q5 passes through resistance R21
Being connected with one end of resistance R22, the other end of resistance R22 is connected with the base stage of audion Q6, resistance R21
Resistance R23 is passed through by electric capacity C11 ground connection, the base stage of audion Q6 with the points of common connection of resistance R22
Ground connection, the colelctor electrode of audion Q6 connects power supply, the colelctor electrode of audion Q6 and flame-out line by resistance R24
Connecting, the colelctor electrode of audion Q6 passes through electric capacity C12 ground connection, and wherein Q5 is PNP type triode；Wherein,
Rotating speed measring is for when negative voltage occurs in flame-out line, and the LEDs ON of optocoupler U2, phototriode is led
Logical, the current potential of the colelctor electrode of optocoupler U2 declines, and control unit is determined by the time span of detection trailing edge to be sent out
The rotating speed of motivation；Flame-out line break-make detection: when engine work, the voltage of flame-out line output makes three
Pole pipe Q5 turns on, thus audion Q6 conducting, the misfire detection end input of control unit is low level, from
And control unit is good according to judge now the to stop working connection of line of the low level of input, by said structure, one
The startup that aspect is electromotor controls to provide reliable reference signal, is on the other hand able to ensure that when electromotor supplies
When electricity is transferred to mains-supplied, electromotor can stop working accurately and reliably.
In the present embodiment, also include the power module powered to control unit and electromotor start and stop unit, institute
State power module include diode D1, diode D2, diode D3, stabilivolt DW1, stabilivolt DW2,
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8,
Resistance R9, resistance R10, resistance R11, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5,
Audion Q1, audion Q2 and audion Q3；
The positive pole of diode D1 and diode D2 is all connected with control unit, diode D1 and diode D2
Negative pole connect, after resistance R1 and resistance R2 parallel connection, one end is connected with the negative pole of diode D1, the other end and
The colelctor electrode of audion D1 connects, the grounded emitter of audion Q1, and the colelctor electrode of audion Q1 is by electricity
The base stage of resistance R5 and audion Q2 is connected, and the base stage of audion Q1 passes through resistance R4 ground connection, audion Q2
Grounded emitter, the base stage of audion Q1 pass through electric capacity C1 ground connection, the base stage of audion Q1 passes through resistance
R6 ground connection, the colelctor electrode of audion Q2 is connected by the base stage of resistance R7 and audion Q3, audion Q3
Base stage be connected with emitter stage by resistance R8, the emitter stage of audion Q3 is connected with the negative pole of diode D3,
The positive pole of diode D3 is connected with accumulator, and the negative pole of diode D3 is by resistance R3 and stabilivolt DW1
Negative pole connect, the positive pole of stabilivolt DW1 is connected with the base stage of audion Q1, the colelctor electrode of audion Q3
Being connected with one end of resistance R11, the other end of resistance R11 is as the first outfan of power module and exports
5V voltage, the colelctor electrode of audion Q3 is as the second outfan of power module and exports 12V voltage, electricity
Resistance R10 and resistance R11 form parallel-connection structure, and the colelctor electrode of audion Q3 passes through electric capacity C2 ground connection, and first
Outfan is connected with the negative pole of stabilivolt DW2, the plus earth of stabilivolt DW2, and the first outfan is by electricity
Holding ground connection after C3 and electric capacity C4 parallel connection, wherein, audion Q3 is PNP type triode；Wherein, stabilivolt
DW1, audion Q1 and audion Q2 shield, when input voltage is higher than setting voltage, stabilivolt
DW1 turns on, thus audion Q1 must conduct, the base stage of audion Q3 now dead electricity, enters cut-off,
Thus the posterior member such as stabilivolt DW2 are played a good protection, by said structure, on the one hand energy
Enough power supplys that outwards output is stable, it is ensured that whole control system works continually and steadily, on the other hand, it is possible to right
Power supply self plays a good protection, wherein, by diode D1 and resistance R9 and stabilivolt DW2
Exporting stable 5V voltage, this voltage provides power supply for control unit in resting state work, and (i.e. civil power is in
Power supply state), when, after commercial power interruption, control unit output triggers signal, i.e. diode D1 and diode D2
Arbitrary input triggers signal, audion Q2 and audion Q3 and turns on, so that the colelctor electrode of audion Q3
Export stable 12V voltage.
In the present embodiment, also include anti-driver element of blowing out, described anti-blow out driver element include relay J 1,
Resistance R31, resistance R32, resistance R33, resistance R34, electric capacity C15, audion Q10 and diode
D9；
The base stage of described audion Q10 is connected with control unit by resistance R31, the base stage of audion Q10
By resistance R32 ground connection, the grounded emitter of audion Q10, the colelctor electrode of audion Q10 passes through relay
The coil of device J1 is connected with power supply, and the colelctor electrode of audion Q10 is connected with the positive pole of diode D9, two poles
The negative pole of pipe D9 is connected with power supply, and the movable contact of relay J 1 is connected and relay J 1 with anti-electromagnetic valve of blowing out
Movable contact be connected with one end of electric capacity C15 also by after resistance R33 and resistance R34 parallel connection, electric capacity C15
The other end be connected with a wherein stationary contact of relay J 1, another stationary contact of relay J 1 is blown out with anti-
Electromagnetic valve connects；By said structure, when phenomenon, control unit output control signal occurs blowing out in electromotor
Making audion Q10 turn on, relay J 1 obtains electric work, and the movable contact of relay J 1 is connected to and prevents blowing out
The stationary contact that electromagnetic valve connects, the anti-electricity consumption circuit closed blowing out electromagnetic valve, thus anti-electromagnetic valve of blowing out is broken
Open fuel oil, electromotor is played a good protection, and resistance R33, resistance R34 and electric capacity C15
The pulse voltage produced when release relay J1 coil obtains electric or power-off, so that prevent blowing out driving
Unit steady operation.
In the present embodiment, also include the start stop signal testing circuit for detecting electromotor start and stop, described start and stop
Signal deteching circuit includes diode D10, resistance R40, resistance R41, resistance R42, electric capacity C16, electricity
Hold C17 and audion Q13；
The described positive pole of diode D10 is connected with the ignition coil of electromotor, and negative pole passes through resistance R40 and three
The base stage of pole pipe Q13 connects, and the base stage of audion Q13 passes through resistance R41 ground connection, the base of audion Q13
Electric capacity C16 ground connection, the grounded emitter of audion Q13 are passed through in pole, and the colelctor electrode of audion Q13 is by electricity
Resistance R42 connects power supply, and the colelctor electrode of audion Q13 is connected with control unit, and the colelctor electrode of audion Q13 leads to
Cross electric capacity C17 ground connection；When the engine starts, audion Q13 turns on, and the current collection of audion Q13 is extremely
Low level, according to this low level signal, control unit judges whether electromotor starts, thus carries for subsequent control
For accurate reference.
In the present embodiment, also include that indicating fault drive circuit, described indicating fault drive circuit include resistance
R35, resistance R36, resistance R37, resistance R38, resistance R39, audion Q11 and audion Q12；
The base stage of described audion Q11 is connected with control unit by resistance R35, described audion Q11's
Base stage passes through resistance R36 ground connection, the grounded emitter of described audion Q11, the colelctor electrode of audion Q11
Being connected by the base stage of resistance R37 with audion Q12, the emitter stage of audion Q12 is connected with power supply, electricity
The two ends of resistance R38 are connected to emitter stage and the colelctor electrode of audion Q12, the colelctor electrode of audion Q12
It is connected with LED light by resistance R39, after electromotor or this control system break down, controls
Unit output control signal, audion Q12 turns on and also powers to LED light, and LED light obtains electric bright
Lamp indicating fault status, ratio notifies that staff carries out repair and maintenance the most in time.
This utility model works according to following principle:
After commercial power interruption powers to the load, control unit obtains the temperature of electromotor, and according to electromotor
Temperature controls motor action makes the size that door opening is corresponding, and control unit controls to start motor and drives
The work of galvanic electricity road starts electromotor, in start-up course, rotating speed sends out with the detection of flame-out line break-make testing circuit
After the rotating speed of motivation and this rotating speed reach 1000 turns, control unit judges engine start success, and controls
Unit controls switch unit work, and the input of load is linked into the outfan of electromotor by civil power；
When, behind city power recovery, control unit gets city power recovery signal, and now control unit controls flame-out control
Circuit processed makes flame-out coil ground connection, so that engine misses, leads to flame-out line when control unit obtains rotating speed
The tach signal of disconnected testing circuit output also judges that rotating speed is 0 to make, and control unit controls switching relay will be negative
Zai Yu city electrically connects, and therefore, participates in without artificial, be automatically performed electromotor and civil power in whole handoff procedure
To the power switching of load, and whole handoff procedure is reliable and stable, and corresponding speed is fast, is prevented effectively from industry
The loss of production etc.；Certainly, whole system also includes charging control circuit, after city power recovery powers,
Charged to the accumulator of electromotor by charging control circuit, so that it is guaranteed that the electricity of accumulator, for follow-up use
Maintain a good state.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted,
Although being described in detail this utility model with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, the technical solution of the utility model can be modified or equivalent, without deviating from this reality
By objective and the scope of new technique scheme, it all should be contained in the middle of right of the present utility model.
Claims (10)
1. an electromotor and mains-supplied switching control system, it is characterised in that: including:
Control unit, for obtaining the status signal that civil power powers to the load, controls according to status signal output
Signal, this control signal includes electromotor start stop signal and load supplying switching signal；
Electromotor start and stop unit, the electromotor start stop signal for reception control unit output controls electromotor gas
Dynamic or flame-out；
Switch unit, the load supplying switching signal exported for reception control unit also controls the power supply loaded
Path is changed between civil power and electromotor.
Electromotor and mains-supplied switching control system the most according to claim 1, it is characterised in that: institute
State electromotor start and stop unit to include:
Temperature detecting module, for detecting the temperature of electromotor and to control unit output temperature signal；
Stepper motor driving circuit, the startup control signal exported for reception control unit also drives stepping electricity
Machine is turned on or off air door；
Starting motor-drive circuit, the startup control signal for reception control unit output drives and starts motor
Work and start electromotor；
Rotating speed and flame-out line break-make testing circuit, for detecting engine speed and the make-and-break signal of flame-out line
And export to control unit；
Flameout control circuit, the flame-out control signal exported for reception control unit also controls engine misses.
Electromotor and mains-supplied switching control system the most according to claim 2, it is characterised in that: institute
State flameout control circuit and include resistance R11, optocoupler U1, resistance R12, resistance 13, resistance R14, resistance
R15, resistance R16, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C8, audion Q4, diode D4,
Diode D5 and controllable silicon SCR 1；
The positive pole of the light emitting diode of described optocoupler U1 connects power supply by resistance R11, the luminescence two of optocoupler U1
The negative pole of pole pipe is connected with control unit, and the negative pole of the light emitting diode of optocoupler U1 passes through electric capacity C5 and electric capacity
Ground connection after C6 parallel connection, the colelctor electrode of the phototriode of optocoupler U1 is connected with the base stage of audion Q4, optocoupler
The grounded emitter of the phototriode of U1, the grounded collector of audion Q4, the base of phototriode Q4
Pole is connected with emitter stage by resistance R12, and the emitter stage of audion Q4 is connected with the negative pole of diode D4,
The positive pole of audion D4 is connected with electric capacity C7 one end, and the other end of electric capacity C7 passes through resistance R15 and controllable silicon
The control pole of SCR1 connects, the plus earth of controllable silicon SCR 1, and the negative electrode of controllable silicon SCR 1 is with flame-out line even
Connecing, the points of common connection between resistance R15 with electric capacity C7 is connected with the negative pole of diode D5, diode D5
Positive pole be connected with flame-out line, one end of resistance R14 is connected to the negative pole of diode D5, and the other end is connected to
The positive pole of diode D4, the positive pole of diode D4 is connected by the positive pole of resistance R13 and diode D5, electricity
The points of common connection of resistance R15 and controllable silicon SCR 1 is connected by the positive pole of electric capacity C8 and diode D5；Wherein,
Audion Q4 is PNP type triode.
Electromotor and mains-supplied switching control system the most according to claim 2, it is characterised in that: institute
State startup motor-drive circuit include diode D7, diode D8, resistance R27, resistance R28, resistance R29,
Resistance R30, audion Q7, audion Q8 and audion Q9；
The positive pole of diode D7 is connected to the collection of the positive pole of accumulator, the negative pole of diode D7 and audion Q7
Electrode connect, the transmitting of audion Q7 extremely start motor-drive circuit outfan and with start motor defeated
Enter end connect, the base stage of audion Q7 is connected with the colelctor electrode of audion Q8, the emitter stage of audion Q8 and
The colelctor electrode of audion Q7 connects, and the base stage of audion Q8 is by the colelctor electrode of resistance R28 and audion Q9
Connecting, the base stage of audion Q8 is connected also by the negative pole of resistance R27 with diode D7, audion Q9
Base stage be connected with control unit by resistance R29, the grounded emitter of audion Q9, audion Q9's
Base stage passes through the transmitting of resistance R30 ground connection, the plus earth of described diode D8, negative pole and audion Q7
Pole connects, and wherein audion Q8 is PNP type triode.
Electromotor and mains-supplied switching control system the most according to claim 2, it is characterised in that: turn
Fast and flame-out line break-make testing circuit includes resistance R16, resistance R17, resistance R18, resistance R19, resistance
R20, resistance R21, resistance R22, resistance R23, resistance R24, electric capacity C9, electric capacity C10, electric capacity C11,
Electric capacity C12, diode D6, audion Q5, audion Q6 and optocoupler U2；
The colelctor electrode of the phototriode of described optocoupler U2 connects power supply by resistance R16, and optocoupler U2's is photosensitive
The colelctor electrode of audion is also connected with control unit, and the colelctor electrode of the phototriode of optocoupler U2 passes through electric capacity
C9 ground connection, the grounded emitter of the phototriode of optocoupler U2, the positive pole of the light emitting diode of optocoupler U2 leads to
The negative pole crossing resistance R18 and diode D6 is connected, the plus earth of diode D6, the luminescence two of optocoupler U2
The negative pole of pole pipe is connected with flame-out line, and after resistance R17 and electric capacity C10 parallel connection, one end connects with the positive pole of optocoupler U2
Connecing, the other end is connected with flame-out line；
The base stage of audion Q5 is connected with flame-out line by resistance R19, and the emitter stage of audion Q5 connects power supply,
The base stage of audion Q5 is connected with emitter stage by resistance R20, and the colelctor electrode of audion Q5 passes through resistance R21
Being connected with one end of resistance R22, the other end of resistance R22 is connected with the base stage of audion Q6, resistance R21
Resistance R23 is passed through by electric capacity C11 ground connection, the base stage of audion Q6 with the points of common connection of resistance R22
Ground connection, the colelctor electrode of audion Q6 connects power supply, the colelctor electrode of audion Q6 and flame-out line by resistance R24
Connecting, the colelctor electrode of audion Q6 passes through electric capacity C12 ground connection, and wherein Q5 is PNP type triode.
Electromotor and mains-supplied switching control system the most according to claim 1, it is characterised in that: also
Including the power module powered to control unit and electromotor start and stop unit, described power module includes two poles
Pipe D1, diode D2, diode D3, stabilivolt DW1, stabilivolt DW2, resistance R1, resistance R2,
Resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10,
Resistance R11, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, audion Q1, audion
Q2 and audion Q3；
The positive pole of diode D1 and diode D2 is all connected with control unit, diode D1 and diode D2
Negative pole connect, after resistance R1 and resistance R2 parallel connection, one end is connected with the negative pole of diode D1, the other end and
The colelctor electrode of audion D1 connects, the grounded emitter of audion Q1, and the colelctor electrode of audion Q1 is by electricity
The base stage of resistance R5 and audion Q2 is connected, and the base stage of audion Q1 passes through resistance R4 ground connection, audion Q2
Grounded emitter, the base stage of audion Q1 pass through electric capacity C1 ground connection, the base stage of audion Q1 passes through resistance
R6 ground connection, the colelctor electrode of audion Q2 is connected by the base stage of resistance R7 and audion Q3, audion Q3
Base stage be connected with emitter stage by resistance R8, the emitter stage of audion Q3 is connected with the negative pole of diode D3,
The positive pole of diode D3 is connected with accumulator, and the negative pole of diode D3 is by resistance R3 and stabilivolt DW1
Negative pole connect, the positive pole of stabilivolt DW1 is connected with the base stage of audion Q1, the colelctor electrode of audion Q3
Being connected with one end of resistance R11, the other end of resistance R11 is as the first outfan of power module and exports
5V voltage, the colelctor electrode of audion Q3 is as the second outfan of power module and exports 12V voltage, electricity
Resistance R10 and resistance R11 form parallel-connection structure, and the colelctor electrode of audion Q3 passes through electric capacity C2 ground connection, and first
Outfan is connected with the negative pole of stabilivolt DW2, the plus earth of stabilivolt DW2, and the first outfan is by electricity
Holding ground connection after C3 and electric capacity C4 parallel connection, wherein, audion Q3 is PNP type triode.
Electromotor the most according to claim 1 or claim 2 and mains-supplied switching control system, it is characterised in that:
Also include that anti-driver element of blowing out, described anti-driver element of blowing out include relay J 1, resistance R31, resistance
R32, resistance R33, resistance R34, electric capacity C15, audion Q10 and diode D9；
The base stage of described audion Q10 is connected with control unit by resistance R31, the base stage of audion Q10
By resistance R32 ground connection, the grounded emitter of audion Q10, the colelctor electrode of audion Q10 passes through relay
The coil of device J1 is connected with power supply, and the colelctor electrode of audion Q10 is connected with the positive pole of diode D9, two poles
The negative pole of pipe D9 is connected with power supply, and the movable contact of relay J 1 is connected and relay J 1 with anti-electromagnetic valve of blowing out
Movable contact be connected with one end of electric capacity C15 also by after resistance R33 and resistance R34 parallel connection, electric capacity C15
The other end be connected with a wherein stationary contact of relay J 1, another stationary contact of relay J 1 is blown out with anti-
Electromagnetic valve connects.
Electromotor the most according to claim 1 or claim 2 and mains-supplied switching control system, it is characterised in that:
Also including the start stop signal testing circuit for detecting electromotor start and stop, described start stop signal testing circuit includes
Diode D10, resistance R40, resistance R41, resistance R42, electric capacity C16, electric capacity C17 and audion
Q13；
The described positive pole of diode D10 is connected with the ignition coil of electromotor, and negative pole passes through resistance R40 and three
The base stage of pole pipe Q13 connects, and the base stage of audion Q13 passes through resistance R41 ground connection, the base of audion Q13
Electric capacity C16 ground connection, the grounded emitter of audion Q13 are passed through in pole, and the colelctor electrode of audion Q13 is by electricity
Resistance R42 connects power supply, and the colelctor electrode of audion Q13 is connected with control unit, and the colelctor electrode of audion Q13 leads to
Cross electric capacity C17 ground connection.
Electromotor the most according to claim 1 or claim 2 and mains-supplied switching control system, it is characterised in that:
Also include that indicating fault drive circuit, described indicating fault drive circuit include resistance R35, resistance R36, electricity
Resistance R37, resistance R38, resistance R39, audion Q11 and audion Q12；
The base stage of described audion Q11 is connected with control unit by resistance R35, described audion Q11's
Base stage passes through resistance R36 ground connection, the grounded emitter of described audion Q11, the colelctor electrode of audion Q11
Being connected by the base stage of resistance R37 with audion Q12, the emitter stage of audion Q12 is connected with power supply, electricity
The two ends of resistance R38 are connected to emitter stage and the colelctor electrode of audion Q12, the colelctor electrode of audion Q12
It is connected with LED light by resistance R39.
Electromotor and mains-supplied switching control system the most according to claim 1, it is characterised in that: institute
Stating control unit is chip MB95F564K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620278506.3U CN205489795U (en) | 2016-04-06 | 2016-04-06 | Generator and mains power supply conversion control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620278506.3U CN205489795U (en) | 2016-04-06 | 2016-04-06 | Generator and mains power supply conversion control system |
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| Publication Number | Publication Date |
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| CN205489795U true CN205489795U (en) | 2016-08-17 |
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ID=56643300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620278506.3U Expired - Fee Related CN205489795U (en) | 2016-04-06 | 2016-04-06 | Generator and mains power supply conversion control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743213A (en) * | 2016-04-06 | 2016-07-06 | 隆鑫通用动力股份有限公司 | Power generator and mains supply automatic switching system |
| CN109944704A (en) * | 2019-03-18 | 2019-06-28 | 重庆建兴智能仪表有限责任公司 | A kind of engine misses automatic control circuit |
| CN111987767A (en) * | 2020-08-19 | 2020-11-24 | 重庆凯米尔汽油机有限公司 | Intelligent power-off control system |
| CN114320700A (en) * | 2021-12-29 | 2022-04-12 | 隆鑫通用动力股份有限公司 | Start-stop control method, device, equipment and medium of generator |
| CN114552992A (en) * | 2022-03-22 | 2022-05-27 | 青岛汉泰智能科技有限公司 | Direct-current power supply system and control method |
-
2016
- 2016-04-06 CN CN201620278506.3U patent/CN205489795U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743213A (en) * | 2016-04-06 | 2016-07-06 | 隆鑫通用动力股份有限公司 | Power generator and mains supply automatic switching system |
| CN105743213B (en) * | 2016-04-06 | 2018-11-16 | 隆鑫通用动力股份有限公司 | Generator and alternating current automatic switchover system |
| CN109944704A (en) * | 2019-03-18 | 2019-06-28 | 重庆建兴智能仪表有限责任公司 | A kind of engine misses automatic control circuit |
| CN109944704B (en) * | 2019-03-18 | 2022-09-02 | 重庆建兴智能仪表有限责任公司 | Engine flameout automatic control circuit |
| CN111987767A (en) * | 2020-08-19 | 2020-11-24 | 重庆凯米尔汽油机有限公司 | Intelligent power-off control system |
| CN111987767B (en) * | 2020-08-19 | 2023-09-05 | 重庆市凯米尔动力机械有限公司 | Intelligent power-off control system |
| CN114320700A (en) * | 2021-12-29 | 2022-04-12 | 隆鑫通用动力股份有限公司 | Start-stop control method, device, equipment and medium of generator |
| CN114320700B (en) * | 2021-12-29 | 2023-12-05 | 隆鑫通用动力股份有限公司 | Start-stop control method, device, equipment and medium for generator |
| CN114552992A (en) * | 2022-03-22 | 2022-05-27 | 青岛汉泰智能科技有限公司 | Direct-current power supply system and control method |
| CN114552992B (en) * | 2022-03-22 | 2024-01-26 | 青岛汉泰智能科技有限公司 | Direct-current power supply system and control method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
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