CN2400051Y - Starting device for electric machine of suction cleaner - Google Patents
Starting device for electric machine of suction cleaner Download PDFInfo
- Publication number
- CN2400051Y CN2400051Y CN 99252348 CN99252348U CN2400051Y CN 2400051 Y CN2400051 Y CN 2400051Y CN 99252348 CN99252348 CN 99252348 CN 99252348 U CN99252348 U CN 99252348U CN 2400051 Y CN2400051 Y CN 2400051Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- triode thyristor
- bidirectional triode
- motor
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Motor And Converter Starters (AREA)
Abstract
The utility model relates to a soft starting device for motors of suction cleaners. The utility model is characterized in that which comprises a first starting circuit, a second starting circuit, a power circuit and a logic control circuit. When a motor is started, the first starting circuit works, and hence, a conduction angle of a bidirectional thyristor TR3 is small, causing the rotary speed of the motor to accelerate from zero rotary speed to low rotary speed which is set by R5 and C5; after delaying, the rotary speed of the motor achieves the setting low rotary speed, the first starting circuit is changed, and the second starting circuit is used, causing the rotary speed which works at normal work time of the motor to accelerate. Because the motor starting is split into two stage gradual acceleration, starting current is small when the motor is started.
Description
The utility model relates to a kind of motor starting device of dust catcher.
In the prior art, motor starting device on the dust catcher as shown in Figure 2, W1 is used to regulate rotating speed of motor, the product of C5, (R6+W1) has determined the angle of flow of TR3, because W1 may be arranged at the maximum (top) speed position when starting, therefore motor directly quickens to maximum speed from zero rotating speed, transient voltage when it starts falls maximum greater than 5.23% of supply voltage, voltage during stable state falls also greater than 3.99% of supply voltage, does not meet the electromagnetic compatibility requirement of many in the world countries to household electrical appliance.
Even when the purpose of this utility model was to provide a kind of manual governing potentiometer to be positioned over maximum (top) speed, its starting resistor fell the soft starter for motor device of all less dust catcher.
The technical solution of the utility model is: a kind of soft starter for motor device of dust catcher, it comprises
First start-up circuit, it is in series and is formed by capacitor C 5, resistance R 5, the first bidirectional triode thyristor TR1;
Second start-up circuit, it is in series and is formed by capacitor C 5, resistance R 6, adjustable resistance W1, the second bidirectional triode thyristor TR2;
Motor circuit, it is in series by motor M, bidirectional triode thyristor TR3 and forms also cross-over connection in the AC power two ends;
Logic control circuit, the control that the control that its first output control terminal is connected on the described first bidirectional triode thyristor TR1 is extremely gone up, second output control terminal is connected on the described second bidirectional triode thyristor TR2 is extremely gone up;
The two ends cross-over connection of described first start-up circuit and second start-up circuit in the two ends of described motor circuit or cross-over connection in the two ends of described bidirectional triode thyristor TR3;
Described logic control circuit has two such output control terminals: when described motor circuit is applied alternating voltage, high potential of first output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR1 conducting, and this moment described logic control circuit electronegative potential of second output control terminal output make described bidirectional triode thyristor TR2 end; After time-delay, electronegative potential of first output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR1 end, and high potential of second output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR2 conducting;
One end of described capacitor C 5 connects the utmost point of bidirectional trigger diode DB, and another utmost point of this bidirectional trigger diode DB is connected to the control of described bidirectional triode thyristor TR3 and extremely goes up.
The utility model compared with prior art has following advantage:
Because elder generation is by the first start-up circuit work during electric motor starting, therefore the angle of flow of bidirectional triode thyristor TR3 is less, motor is quickened to the slow-speed of revolution of being set by R5 and C5 from zero rotating speed earlier, after the time-delay, motor speed reaches the slow-speed of revolution of described setting substantially, first start-up circuit is switched, and second start-up circuit comes into operation, make the rotating speed of described motor when operate as normal quicken, because electric motor starting is divided into two-stage and progressively goes on foot acceleration, starting current when therefore starting is little, after measured, it is about 2.2% that the transient voltage when it starts falls maximum, and it is 1.06% that the voltage during stable state falls, meet electromagnetic compatibility requirement to home appliance, little to the influence of electrical network.
The utility model will be further described below in conjunction with drawings and Examples:
Accompanying drawing 1 is the circuit theory diagrams of first embodiment of the present utility model;
Accompanying drawing 2 is the circuit theory diagrams of the electric motor starting circuit of prior art;
Accompanying drawing 3 is the circuit theory diagrams of second embodiment of the present utility model;
Accompanying drawing 4 is the circuit theory diagrams of the 3rd embodiment of the present utility model;
Embodiment: a kind of soft starter for motor device of dust catcher, it comprises:
First start-up circuit, it is in series and is formed by capacitor C 5, resistance R 5, the first bidirectional triode thyristor TR1;
Second start-up circuit, it is in series and is formed by capacitor C 5, resistance R 6, adjustable resistance W1, the second bidirectional triode thyristor TR2;
Motor circuit, it is in series by motor M, bidirectional triode thyristor TR3 and forms also cross-over connection in the AC power two ends;
Logic control circuit, the control that the control that its first output control terminal is connected on the described first bidirectional triode thyristor TR1 is extremely gone up, second output control terminal is connected on the described second bidirectional triode thyristor TR2 is extremely gone up;
The two ends cross-over connection of described first start-up circuit and second start-up circuit in the two ends of described motor circuit or cross-over connection in the two ends of described bidirectional triode thyristor TR3;
Described logic control circuit has two such output control terminals: when described motor circuit is applied alternating voltage, high potential of first output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR1 conducting, and this moment described logic control circuit electronegative potential of second output control terminal output make described bidirectional triode thyristor TR2 end; After time-delay, electronegative potential of first output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR1 end, and high potential of second output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR2 conducting;
One end of described capacitor C 5 connects the utmost point of bidirectional trigger diode DB, and another utmost point of this bidirectional trigger diode DB is connected to the control of described bidirectional triode thyristor TR3 and extremely goes up.The first anode of the first bidirectional triode thyristor TR1 on described first start-up circuit terminates at the second plate end of the bidirectional triode thyristor TR3 on the described motor circuit, and the other end of the capacitor C 5 on described first start-up circuit is connected on the first anode end of described bidirectional triode thyristor TR3 or the other end of motor circuit.The first anode of the second bidirectional triode thyristor TR2 on described second start-up circuit terminates at the second plate end of the bidirectional triode thyristor TR3 on the described motor circuit.
Referring to accompanying drawing 1, AC power becomes low-voltage AC through capacitor C 1, transformer B1, become low-voltage DC through bridge rectifier D1 to D4 and filter capacitor C2 again, supply with IC 1 (model is 555, its each pin order number referring to corresponding integrated pin explanation) and triode BG1 use.Capacitor C 3 in the accompanying drawing 1, resistance R 1, capacitor C 4, ic chip 1, resistance R 2, resistance R 3, resistance R 4, triode BG1 form described logic control circuit.When just powering up, the 2nd pin of IC1 and the 6th pin are electronegative potential, and the 3rd pin output high potential, the 7th pin are in and the ground off-state.Dc source is extremely gone up by the control that R2 output high potential is added to silicon symmetrical switch TR1, makes the TR1 conducting.Capacitor C 5 is charged to a certain degree by R5 and TR1 charging, and bidirectional trigger diode DB conducting produces the control utmost point of pulse to bidirectional triode thyristor TR3, makes bidirectional triode thyristor TR3 conducting, so motor M is connected.The conduction angle of TR3 when the product of R5 and C5 has determined to start, i.e. the motor slow-speed of revolution of She Dinging.Transient voltage fell maximum and is no more than standard when the selection of the value of R5 and C5 required to start.On the other hand, the 3rd pin of IC1 is a high potential, BG1 is satisfied close conducting, and the current collection of BG1 is electronegative potential very, so TR2 is obstructed.The charging current of C5 is without resistance R 6, manual governing potentiometer W1, TR2.Power up afterwards along with C3 charges gradually by R1,2 pin of IC1 and the current potential of 6 pin progressively improve, and (delay time about 0.5 second to 2.5 seconds) when being raised to greater than 2/3 supply voltage, and the conversion of IC1 state: the 7th pin and the 3rd pin of IC1 all become electronegative potential, make TR1 disconnect the TR2 conducting.C5 is by R6, W1, TR2 charging, with the conduction angle of control TR3.Manual adjustments W1 can regulate motor speed.First output control terminal of described logic control circuit is the 7th pin of IC1, and second output control terminal of described logic control circuit is the colelctor electrode of BG1.
Referring to accompanying drawing 3, described first start-up circuit is in series by C5, R5, TR1, second start-up circuit is in series by capacitor C 6, R6, W1, TR2, makes two start-up circuits use an electric capacity separately and is different from two shared electric capacity of start-up circuit in the accompanying drawing 1.The capacitance terminal of two start-up circuits connects a bidirectional trigger diode DB1 and DB2 respectively simultaneously.Circuit shown in the accompanying drawing 3 is that the equivalence of circuit shown in the accompanying drawing 1 is replaced.
Referring to accompanying drawing 4, this accompanying drawing provides another kind of logic control circuit, and the model of the IC2 in the accompanying drawing 4 is a NAND gate 4011, has used two triode BG1 and BG2.When just powering up, 5 pin of IC2 are high potentials, and 6 pin are electronegative potentials, and therefore 4 pin are high potentials.So just make BG1 be in saturation state, the colelctor electrode of BG1 is an electronegative potential, and it makes not conducting of TR2.The electronegative potential of BG1 colelctor electrode ends BG2, and the colelctor electrode of BG2 is a high potential, and power supply makes the TR1 conducting by the control utmost point power supply of resistance TR1.C5 by R5, TR1, charge, make motor be in the low-power starting state.Power supply charges to C3 through R1, when the voltage on the C3 is raised to (after delaying time 2 seconds) when being equivalent to high potential, 5 pin of IC2 and 6 pin all are high potentials, its 4 pin becomes electronegative potential, at this moment BG1 is in cut-off state, the colelctor electrode of BG1 is a high potential, power supply is by the control utmost point power supply of resistance to TR2, make the TR2 conducting, simultaneously the high potential of BG1 colelctor electrode makes BG2 be in saturation state, and the current collection that makes BG2 is electronegative potential very, therefore makes not conducting of TR1, C5 is by R6 and W1 and TR2 charging, and motor changes normal manual state over to.
Claims (3)
1, a kind of soft starter for motor device of dust catcher, it is characterized in that: it comprises
First start-up circuit, it is in series and is formed by capacitor C 5, resistance R 5, the first bidirectional triode thyristor TR1;
Second start-up circuit, it is in series and is formed by capacitor C 5, resistance R 6, adjustable resistance W1, the second bidirectional triode thyristor TR2;
Motor circuit, it is in series by motor M, bidirectional triode thyristor TR3 and forms also cross-over connection in the AC power two ends;
Logic control circuit, the control that the control that its first output control terminal is connected on the described first bidirectional triode thyristor TR1 is extremely gone up, second output control terminal is connected on the described second bidirectional triode thyristor TR2 is extremely gone up;
The two ends cross-over connection of described first start-up circuit and second start-up circuit in the two ends of described motor circuit or cross-over connection in the two ends of described bidirectional triode thyristor TR3;
Described logic control circuit has two such output control terminals: when described motor circuit is applied alternating voltage, high potential of first output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR1 conducting, and this moment described logic control circuit electronegative potential of second output control terminal output make described bidirectional triode thyristor TR2 end; After time-delay, electronegative potential of first output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR1 end, and high potential of second output control terminal of described logic control circuit output makes described bidirectional triode thyristor TR2 conducting;
One end of described capacitor C 5 connects the utmost point of bidirectional trigger diode DB, and another utmost point of this bidirectional trigger diode DB is connected to the control of described bidirectional triode thyristor TR3 and extremely goes up.
2, the soft starter for motor device of dust catcher according to claim 1, it is characterized in that: the first anode of the first bidirectional triode thyristor TR1 on described first start-up circuit terminates at the second plate end of the bidirectional triode thyristor TR3 on the described motor circuit, and the other end of the capacitor C 5 on described first start-up circuit is connected on the first anode end of described bidirectional triode thyristor TR3 or the other end of motor circuit.
3, the soft starter for motor device of dust catcher according to claim 1 is characterized in that: the first anode of the second bidirectional triode thyristor TR2 on described second start-up circuit terminates at the second plate end of the bidirectional triode thyristor TR3 on the described motor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99252348 CN2400051Y (en) | 1999-12-30 | 1999-12-30 | Starting device for electric machine of suction cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99252348 CN2400051Y (en) | 1999-12-30 | 1999-12-30 | Starting device for electric machine of suction cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2400051Y true CN2400051Y (en) | 2000-10-11 |
Family
ID=34036620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99252348 Expired - Fee Related CN2400051Y (en) | 1999-12-30 | 1999-12-30 | Starting device for electric machine of suction cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2400051Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913024A (en) * | 2016-10-10 | 2018-04-17 | 康塔有限公司 | Vacuum cleaner |
-
1999
- 1999-12-30 CN CN 99252348 patent/CN2400051Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913024A (en) * | 2016-10-10 | 2018-04-17 | 康塔有限公司 | Vacuum cleaner |
| CN107913024B (en) * | 2016-10-10 | 2021-04-27 | 康塔有限公司 | Vacuum cleaner with a vacuum cleaner head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202197227U (en) | Single-phase bridge type half-control rectification power supply | |
| CN200944560Y (en) | Resistance-capacitance voltage-reducing power circuit | |
| CN1073304C (en) | Two-wire power supply electronic switch | |
| CN2400051Y (en) | Starting device for electric machine of suction cleaner | |
| CN207117520U (en) | A kind of electricity-saving control cabinet of motor | |
| CN1141058C (en) | Soft starter for motor of dust collector | |
| CN201623677U (en) | Control circuit of single-phase alternating-current motor for clothes dryers | |
| CN212627141U (en) | Motor no-load short-time self-stop control circuit | |
| CN2538271Y (en) | Flexible starting and hand speed-regulating circuit for vacuum cleaner | |
| CN2475367Y (en) | Speed regulator for vacuum cleaner | |
| CN2482274Y (en) | Motor governor | |
| CN2744065Y (en) | Mutual inductance type contactless starter | |
| CN2453610Y (en) | Low harmonic current vacuum cleaner speed regulator | |
| CN1151413C (en) | Series electronic switching power source device | |
| CN2462609Y (en) | Power saving device of electrical appliances | |
| CN2822027Y (en) | Single phase asynchronous motor electronic start switch | |
| CN2146771Y (en) | Power-saving fire-proof device for electromagnet and contactor | |
| CN208522646U (en) | Power module output voltage soft starting circuit | |
| CN2490614Y (en) | Line voltage input-type AC voltage stabilizer | |
| CN2380719Y (en) | Multifunction controller for oil pump | |
| CN2168362Y (en) | Fan Controller | |
| CN2728072Y (en) | Exponent type motor protector | |
| CN2465310Y (en) | Energy-saving ac contact | |
| CN2184902Y (en) | Controller for refrigerating compressor | |
| CN2242475Y (en) | AC manostat with electric motor driven tap switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |