CN103482441A - Novel elevator power supply control device - Google Patents
Novel elevator power supply control device Download PDFInfo
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- CN103482441A CN103482441A CN201310409964.7A CN201310409964A CN103482441A CN 103482441 A CN103482441 A CN 103482441A CN 201310409964 A CN201310409964 A CN 201310409964A CN 103482441 A CN103482441 A CN 103482441A
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- circuit
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- power
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The invention discloses a novel elevator power supply control device which is a switching-power-supply type elevator control power supply with a phase failure monitoring function. An isolation-type switching power supply adopting three-phase alternating-current power input takes the place of a power-frequency transformer type control power supply, a photoelectric coupler is adopted to monitor power supply phase failure, and the elevator control power supply is integrated with elevator power supply failure phase protection. The novel elevator power supply control device is simplified in structure, is high in integration level and less in weight and volume, and thereby being favorable for light-weight trend and miniaturization of an elevator control system.
Description
Technical field
The present invention relates to the electrical equipment of elevator, specifically, is that a kind of switch power supply type elevator with disconnected phase monitoring function is controlled supply unit.
Background technology
Modem elevator has generally adopted frequency conversion Electric Traction and microcomputer operation control technology, in the control system of this elevator, usually is provided with elevator and controls power circuit and open-phase protection circuit.For example use the elevator control cabinet of NICE3000 elevator integrated controller assembling, the control power circuit is comprised of the line-frequency transformer type power supply of Switching Power Supply, output DC110V and the AC110V of output DC24V; Its open-phase protection circuit is comprised of the dislocation phase relay.
Above-mentioned the deficiencies in the prior art part is that elevator is controlled power circuit and the discrete setting of open-phase protection circuit, causes the assembling wiring of elevator control cabinet relatively many; Volume and the weight of line-frequency transformer type power supply are larger, are unfavorable for miniaturization, the lightness of elevator control cabinet, usually do not possess voltage stabilizing function.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, provide a kind of switch power supply type elevator with disconnected phase monitoring function to control supply unit.
The technical solution adopted for the present invention to solve the technical problems is: described novel elevator is controlled supply unit, comprises switching power circuit and input thereof, output unit, it is characterized in that: described novel elevator is controlled in supply unit and is increased and resolve the phase observation circuit; The three-phase alternating-current supply that is input as elevator supply of described switching power circuit, switching power circuit shares one group of three-phase power input end with disconnected phase observation circuit; Described disconnected phase observation circuit is by relay contact lead-out terminal and the normal indicator lamp of power supply, and the output power supply has or not the information of open phase fault.
Described novel elevator is controlled supply unit, its disconnected phase observation circuit comprises power acquisition collector, open phase fault identification circuit and driver output circuit, it is characterized in that, photoelectrical coupler (OC1) with (OC2) form NAND gate circuit the open phase fault of power supply identified, (OC1) collecting electrode connects power supply (+) through current-limiting resistance (R7), its emitter is connected with the collecting electrode of (OC2), and emission (OC2) is the output of open phase fault identification circuit very; Drive relay (J) work through aerotron (BG).
The output that described novel elevator is controlled supply unit can be DC110V and DC24V, DC110V power supply (-) end ground connection wherein, (+) end is connected to respectively vital circuit (11), contactor control circuit (10), the brake circuit (9) of elevator through fuse (6), (7), (8); DC24V power supply (-) end ground connection, (+) end connects the microcomputer control circuit (12) of elevator through fuse (5).
The present invention compared with prior art, has the following advantages and beneficial effect:
1. adopt isolation type switching power supply to replace line-frequency transformer type and control power supply, alleviated weight, dwindled volume, and there is the voltage stabilizing current-limiting function;
2. be input as three-phase alternating-current supply, to adapt to the power supply mode of elevator, compare with common single phase poaer supply input scheme, the three-phase input is easier to the load of each phase power supply of balance;
3. the phase observation circuit that will break is arranged at one with controlling power circuit, has higher integrated level, can simplify structure and the technique of elevator control cabinet, reduces control housing assembling wiring, saves production cost, and is conducive to lightness, the miniaturization of apparatus for controlling elevator.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further elaborated:
Fig. 1 is the structured flowchart of the embodiment of the present invention.
Fig. 2 is the circuit diagram of the disconnected phase observation circuit embodiment of the present invention.
Fig. 3 is the structured flowchart of switching power circuit embodiment of the present invention.
In figure, 1. three-phase power input end, 2. current rectifying and wave filtering circuit, 3.DC/DC change-over circuit, 4.DC110V and DC24V lead-out terminal, 5. fuse, 6. fuse, 7. fuse, 8. fuse, 9. brake circuit, 10. running control circuit, 11. vital circuits, 12. microcomputer control circuits.
The specific embodiment
In Fig. 1, switching power circuit be input as three-phase alternating-current supply, to adapt to the power supply mode of elevator, with common single phase poaer supply input scheme, compare, the three-phase input is easier to the load of each phase power supply of balance.Switching power circuit is output as multi-channel dc power supply, can be to the elevator control circuit power supply of different voltages.
Special safety equipment specification regulation: " elevator should possess the mutually disconnected and fault-phase protection function of electric power system, and when mutually disconnected or misphase appear in the elevator supply circuit, elevator should out of service and maintenance halted state "; " the elevator operation is irrelevant with phase sequence, can not establish the fault-phase protection function ".According to this requirement, the Frequency converting driving elevator can only possess phase failure protection function.
The novel elevator of Fig. 1 controls among supply unit to arrange and resolves the phase observation circuit, replaced in the prior art dislocation phase protective relay in the discrete setting of elevator control cabinet.The input end of disconnected phase observation circuit is connected with three-phase power input end; when recognize three phase mains wherein one mutually or two-phase while opening circuit; by the disconnected phase signals of relay contact lead-out terminal out-put supply; normally by the elevator safety circuit be attached thereto, gone to cut off the supply line of driving motor, to realize the phase failure protection function of elevator.The normal indicator lamp of power supply is for showing without open-phase fault, to facilitate elevator check and upkeep operation.
In the disconnected phase observation circuit of Fig. 2, the power acquisition collector comprises that rectifier diode (D1), (D3), current-limiting resistance (R1), (R3), filter capacitor (C1) form the first-phase half-wave rectifying circuit, and rectifier diode (D2), (D3), current-limiting resistance (R2), (R4), filter capacitor (C2) form the second-phase half-wave rectifying circuit; This circuit is used two photoelectrical couplers to be detected input power, and the input end of the first photoelectrical coupler (OC1), the second photoelectrical coupler (OC2) is connected in series respectively current-limiting resistance (R4), (R5) is connected in first-phase, second-phase half-wave rectifying circuit afterwards.The open phase fault identification circuit is the NAND gate circuit that (OC1), (OC2) form, (OC1) collecting electrode connects power supply (+) through current-limiting resistance (R7), its emitter is connected with the collecting electrode of (OC2), the output of the very disconnected phase identification circuit of emission (OC2); When power supply occurs that a phase or two-phase are opened circuit, disconnected phase identification circuit is output as active potential, is output as high potential during without open phase fault.The driver output circuit comprises aerotron (BG), relay (J) and the normal indicator lamp of power supply (D5) etc., and the output signal of disconnected phase identification circuit amplifies through aerotron (BG) relay (J) work that drives.When elevator power supply source is normal; relay (J) adhesive, moving together contact (J-1) the normal indicator lamp that switches on power means that power supply is without open-phase fault, another moving together contact (J-2) connects lead-out terminal; for connecting the vital circuit of elevator, realize the phase failure protection function of elevator.This circuit application " the normal indicator lamp of power supply " and do not select " phase shortage indicator lamp ", can avoid occurring that mistake shows, because likely occur during power phase shortage that the power supply of disconnected phase observation circuit interrupts, " phase shortage indicator lamp " now can not work because of non-transformer, causes mistake to show.
Filter capacitor (C1) and loading capacity (C2) are designed to drive the output energy saturation conduction 1/40 second to 1/20 second of (OC1), (OC2), and when power supply is normal, the output of (OC1), (OC2) maintains the saturation conduction state.
The embodiment of switching power circuit shown in Fig. 3, be input as three-phase power input end (1) that elevator power supply source is introduced, and through current rectifying and wave filtering circuit (2), becomes direct current (DC), by DC/DC change-over circuit (3), is output as DC110V and DC24V power supply.
Special safety equipment specification regulation: " zero line separates all the time with ground wire ", " cause ground connection if include the circuit ground of electric safety device or contacting metal member, this circuit should make the elevator drive main frame shut down immediately ".Because DC110V and the DC24V lead-out terminal (4) of this device have been realized electrical isolation with three-phase power input end (1) by DC/DC change-over circuit (3), its (-) termination enters the ground wire of elevator device, (+) end is linked into respectively microcomputer control circuit (12), vital circuit (11), running control circuit (10), brake circuit (9) through fuse (5), (6), (7), (8), the rated current of its fuse is by corresponding load apolegamy.Like this, ground connection or contacting metal member occur and while causing ground connection, line electricity fails to be convened for lack of a quorum and greatly increases, and causes fuse blows, cuts off the power supply of circuit, with this, realizes the control that the elevator drive main frame is shut down, and plays the effect of ground protection when foregoing circuit.
The brake circuit of the present embodiment (8), running control circuit (7) are chosen to be DC110V with the operating voltage of vital circuit (6).The running control circuit of prior art is used the alternating current operation contactless switch usually, and this circuit is selected DC operation contactor, and to adapt to the DC supply of Switching Power Supply, its running noises lowers, and cost has increased slightly.Microcomputer control circuit comprises computer control board and call circuit, display circuit etc., and its operating voltage is chosen to be DC24V.
Below with embodiment, the present invention has been carried out launching to describe by reference to the accompanying drawings, this description does not have restricted, the embodiment that shown in accompanying drawing, also just the present invention forms, and technical scheme of the present invention is not limited to this.Those of ordinary skill in the art should be understood that, in the situation that do not break away from design philosophy of the present invention, the actual variation on some details of implementing also to have of the present invention.So as long as, aim according to the invention, these variations include within protection scope of the present invention.
Claims (3)
1. a novel elevator is controlled supply unit, comprises switching power circuit and input thereof, output unit, it is characterized in that: described novel elevator is controlled in supply unit and is increased and resolve the phase observation circuit; The three-phase alternating-current supply that is input as elevator supply of described switching power circuit, switching power circuit shares one group of three-phase power input end with disconnected phase observation circuit; Described disconnected phase observation circuit is by relay contact lead-out terminal and the normal indicator lamp of power supply of its setting, and the output power supply has or not the information of open phase fault.
2. novel elevator according to claim 1 is controlled supply unit, its disconnected phase observation circuit comprises power acquisition collector, open phase fault identification circuit and driver output circuit, it is characterized in that, photoelectrical coupler (OC1) with (OC2) form NAND gate circuit the open phase fault of power supply identified, (OC1) collecting electrode connects power supply (+) through current-limiting resistance (R7), its emitter is connected with the collecting electrode of (OC2), and emission (OC2) is the output of open phase fault identification circuit very; Drive relay (J) work through aerotron (BG).
3. novel elevator according to claim 1 is controlled supply unit, it is characterized in that: the output of switching power circuit can be DC110V and DC24V, DC110V power supply (-) end ground connection wherein, (+) end is connected to respectively vital circuit (11), contactor control circuit (10), the brake circuit (9) of elevator through fuse (6), (7), (8); DC24V power supply (-) end ground connection, (+) end connects the microcomputer control circuit (12) of elevator through fuse (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310409964.7A CN103482441A (en) | 2013-09-10 | 2013-09-10 | Novel elevator power supply control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310409964.7A CN103482441A (en) | 2013-09-10 | 2013-09-10 | Novel elevator power supply control device |
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| CN103482441A true CN103482441A (en) | 2014-01-01 |
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| CN201310409964.7A Pending CN103482441A (en) | 2013-09-10 | 2013-09-10 | Novel elevator power supply control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037725A (en) * | 2014-06-25 | 2014-09-10 | 江南嘉捷电梯股份有限公司 | Elevator safeguard detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902573A (en) * | 1974-01-23 | 1975-09-02 | Donald E Grove | Elevator control system |
| CN1433950A (en) * | 2002-01-24 | 2003-08-06 | 北京航天万源稀土电机应用技术有限公司 | Rareearth permanent-magnet self-synchronous gearless elevator driving control system |
| CN101640472A (en) * | 2008-07-28 | 2010-02-03 | 上海斯堪亚电气调速设备有限公司 | Intelligent integrated elevator system assistant power device |
| JP2011051695A (en) * | 2009-08-31 | 2011-03-17 | Toshiba Elevator Co Ltd | Control device of elevator |
| JP2011088708A (en) * | 2009-10-22 | 2011-05-06 | Mitsubishi Electric Corp | Open-phase detecting device of power source for elevator |
-
2013
- 2013-09-10 CN CN201310409964.7A patent/CN103482441A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902573A (en) * | 1974-01-23 | 1975-09-02 | Donald E Grove | Elevator control system |
| CN1433950A (en) * | 2002-01-24 | 2003-08-06 | 北京航天万源稀土电机应用技术有限公司 | Rareearth permanent-magnet self-synchronous gearless elevator driving control system |
| CN101640472A (en) * | 2008-07-28 | 2010-02-03 | 上海斯堪亚电气调速设备有限公司 | Intelligent integrated elevator system assistant power device |
| JP2011051695A (en) * | 2009-08-31 | 2011-03-17 | Toshiba Elevator Co Ltd | Control device of elevator |
| JP2011088708A (en) * | 2009-10-22 | 2011-05-06 | Mitsubishi Electric Corp | Open-phase detecting device of power source for elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037725A (en) * | 2014-06-25 | 2014-09-10 | 江南嘉捷电梯股份有限公司 | Elevator safeguard detector |
| CN104037725B (en) * | 2014-06-25 | 2018-01-19 | 江南嘉捷电梯股份有限公司 | Elevator safety protects detection means |
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Application publication date: 20140101 |