CN104418194A - Elevator control cabinet - Google Patents
Elevator control cabinet Download PDFInfo
- Publication number
- CN104418194A CN104418194A CN201310373520.2A CN201310373520A CN104418194A CN 104418194 A CN104418194 A CN 104418194A CN 201310373520 A CN201310373520 A CN 201310373520A CN 104418194 A CN104418194 A CN 104418194A
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- China
- Prior art keywords
- circuit
- phase
- power supply
- elevator
- control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Elevator Control (AREA)
Abstract
The invention provides an elevator control cabinet. The elevator control cabinet is characterized in that an industrial frequency transformer type control power supply is replaced by a disconnecting switch power supply and a phase-failure protection circuit is arranged into an integral controller. The elevator control cabinet is characterized in that the input end of the control power supply is connected with an elevator power supply, and while the output end of the control power supply serves as multi-path DC power supplies which are respectively connected to the integral controller, a safety circuit, an operation control circuit, a band-type brake and other elevator control circuits; a DC operating electromagnetic contactor is used as the contactor of the operation control circuit, in order to adapted to the power supplying of the switch power supply; the input end of a detecting circuit of a phase-failure protection circuit is connected with a power input terminal of the integral controller, and while the output end of the detecting circuit is connected with a transducer output interrupting circuit, a phase-failure protection relay and a phase-failure indicating circuit. According to the elevator control cabinet, the structure and process are both simplified, the production cost is decreased, and a lightweight and small-size elevator control system is realized.
Description
Technical field
The present invention relates to the electrical equipment of elevator, specifically, is a kind of electric apparatus lift facility being run to control and electric security protector.
Background technology
Existing elevator generally adopts frequency control electric drive system, and the current technology such as elevator control cabinet assembled by application continuum controller.Its control housing usually by integrated controller, braking resistor, vital circuit, running control circuit, power supply open-phase protection circuit, and exports the Switching Power Supply of DC24V, the Industrial Frequency Transformer of output DC110V and AC110V controls the compositions such as power supply.Wherein, power supply open-phase protection circuit is generally the dislocation phase protective relay of discrete setting, the power supply three phase mains of its input termination control housing, and mouth access security circuit is relatively many in the wiring of control housing; Industrial Frequency Transformer in control housing controls power supply, volume and weight relatively large, usually do not possess voltage stabilizing and current-limiting function.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, providing a kind of and using isolation type switching power supply to replace Industrial Frequency Transformer to control power supply, open-phase protection circuit is arranged at elevator control cabinet among integrated controller.
The technical solution adopted for the present invention to solve the technical problems is: this elevator control cabinet comprises integrated controller, braking resistor, vital circuit, running control circuit, open phase protection, control supply unit etc., contactless switch in described running control circuit is DC operation electromagnetic contactor, control supply unit is the Switching Power Supply based on DC/DC conv, a wherein part for the integrated controller of open phase protection; The input termination elevator power supply source of described control power supply, mouth is multi-channel dc power supply, is linked among the elevator control circuits such as integrated controller, vital circuit, running control circuit and band-type brake respectively; Its input end of the open-phase detection circuit of described open phase protection is connected with the power input terminal of integrated controller, and its mouth connects frequency converter and exports blocking-up circuit, phase failure relay circuit and open-phase indicting circuit.
Described elevator control cabinet, it controls supply unit and can input for AC220V civil power, through rectifying and wave-filtering, DC/DC conversion, exports as DC110V and DC24V power supply; DC110V power supply "-" end ground connection wherein, "+" end is through vital circuit, running control circuit, the band-type brake circuit of fuse access elevator; DC24V power supply "-" end ground connection, "+" end connects integrated controller computer control board through fuse.
Described elevator control cabinet, the open-phase detection circuit of its open phase protection is the testing circuit based on photoelectrical coupler technology, comprise the rectifier diode and limiting capacitor that are connected to power supply first-phase, form first-phase half-wave rectifying circuit by rectifier diode and limiting capacitor; Power supply second-phase half-wave rectifying circuit is identical with the structure of first-phase half-wave rectifying circuit; First-phase, second-phase half-wave rectifying circuit access zener diode and filter capacitor respectively as load; The anode of first, second photoelectrical coupler is connected respectively to the positive pole of first-phase, second-phase mains half-wave rectifying circuit after serial connection current-limiting resistance, and its negative electrode is connected respectively to the negative pole of first-phase, second-phase mains half-wave rectifying circuit; The emitter of the first photoelectrical coupler is connected with the collecting electrode of the second photoelectrical coupler.
The present invention compared with prior art, has the following advantages and beneficial effect:
1. adopt isolation type switching power supply to instead of the elevator controlling power supply be made up of Industrial Frequency Transformer, under the prerequisite meeting elevator control circuit power demands, the weight of elevator controlling supply unit and volume reduce, designs simplification, efficiency improves, temperature rise reduces, and is conducive to the lightness of apparatus for controlling elevator, miniaturization.
2. elevator control cabinet open phase protection of powering is arranged among elevator integrated controller; instead of discrete dislocation phase protective relay; structure and the technique of elevator control cabinet can be simplified, save production cost, the concrete technical requirements of national legislation standard to elevator fault-phase protection can be met.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is set forth further, to be easier to by those skilled in the art to make technical characteristic of the present invention and advantage understand, thus protection scope of the present invention made more clearly define.
Fig. 1 is the constructional drawing of the embodiment of the present invention.
Fig. 2 is the constructional drawing of open phase protection embodiment.
Fig. 3 is the constructional drawing that switch power supply type controls power supply embodiment.
Fig. 4 is the circuit diagram of open-phase detection circuit embodiment.
In figure, 1. power supply, 2. integral control cabinet, 3. braking resistor, 4. running control circuit, 5. hoisting motor, 6. control power supply, 7. vital circuit, 8. band-type brake, 9. power input terminal, 10. open-phase detection circuit, 11. frequency converters export and block circuit, 12. open-phase indicting circuit, 13. phase failure relay circuit, 14.AC input terminal, 15. rectifiers, 16. electric capacity, 17.DC/DC conv, 18.DC110V and DC24V lead-out terminal, 19. fuses, 20. fuses, 21. fuses, 22. fuses, 23. fuses, 24. integrated controller computer control boards.
Detailed description of the invention
The elevator control cabinet being applicable to adopt integrated controller to assemble embodiment illustrated in fig. 1.Compare with the like product of prior art, instead of the dislocation phase protective relay of elevator controlling power supply and the discrete setting be made up of Industrial Frequency Transformer, more compact structure, volume is little, lightweight.
Integrated controller is the device united two into one with control microcomputer plate by the driving frequency converter of elevator, and application is popularized gradually.In FIG, open phase protection is arranged among integrated controller (2), instead of the dislocation phase protective relay in the discrete setting of elevator control cabinet in prior art; Control the Switching Power Supply that power supply (6) forms for isolated DC/DC conv, achieve the electrical isolation exported with input, its input termination elevator power supply source (1), mouth is multi-channel dc power supply, is linked among the elevator control circuits such as integrated controller (2), vital circuit (7), running control circuit (4) and band-type brake (8) respectively; Power for adapting to Switching Power Supply, the contactless switch in running control circuit is DC operation electromagnetic contactor.
Fig. 2 is the open phase protection constructional drawing of the embodiment of the present invention; open phase protection is arranged among elevator integrated controller; the input end of its open-phase detection circuit (10) is connected with the power input terminal (9) of integrated controller, and its mouth connects frequency converter and exports blocking-up circuit (11), phase failure relay circuit (13) and open-phase indicting circuit (12).The phase voltage of open-phase detection circuit (10) application photoelectrical coupler to power supply detects, when recognizing a wherein phase or the two-phase generation open circuit of three phase mains, drive frequency converter to export immediately and block circuit (11) enforcement " in blocking-up static cell current flowing ", normally by DSP circuit realiration in frequency converter; Drive the output contact action of phase failure relay circuit (13), cut off the supply line of elevator drive electrical motor by the contactless switch of vital circuit (7) operation and control control circuit; Shown in real time without open phase fault by phase indicator circuit (7), to facilitate inspection and upkeep operation.
Fig. 3 is that the switch power supply type of the embodiment of the present invention controls power supply architecture figure.Switching Power Supply has become a kind of modular product of technology maturation, progressively replaces the application of Industrial Frequency Transformer on middle-size and small-size power supply.The present invention has selected isolated DC/DC conv composition Switching Power Supply, achieves the electrical isolation exported with input, can have the multiple-channel output of different voltage, can meet the power demands of elevator control circuit.
The requirement of technical standard to elevator ground protection is: " zero line separates all the time with ground wire ", " if include the circuit ground of electric safety device or contacting metal component and cause ground connection, this circuit should make elevator drive main frame shut down immediately ".Because DC110V and the DC24V lead-out terminal (18) of this device achieves electrical isolation with AC input terminal (14), its "-" termination enters the ground wire of elevator device, "+" end is linked into integrated controller computer control board (24), vital circuit (7), running control circuit (21), band-type brake circuit (8) through fuse (19), (20), (21), (22) respectively, and the rated current of its fuse matches by corresponding load.Like this, when causing ground connection when above-mentioned elevator control circuit generation ground connection or contacting metal component, line electricity fails to be convened for lack of a quorum and greatly increases; cause fuse blows; cut off the power supply of elevator control circuit, realize with this control that elevator drive main frame is shut down, play the effect of ground protection.
Fig. 4 is open phase detection embodiment circuit diagram.In figure, rectifier diode (D1) and current limiting capacitance (C1) form first-phase half-wave rectifying circuit, and zener diode (D3) and filter capacitor (C2) are load; Rectifier diode (D2) and current limiting capacitance (C1) form second-phase half-wave rectifying circuit, and zener diode (D4) and filter capacitor (C3) are load; This circuit uses two photoelectrical couplers to detect input power, the input end of the first photoelectrical coupler (U1), the second photoelectrical coupler (U2) is connected in series current-limiting resistance (R1) respectively, (R2) is connected to first-phase, second-phase half-wave rectifying circuit afterwards, (U1), the mouth of (U2) is connected in series, (U1) collecting electrode connects through resistance (R3) and controls power supply (+), and (U2) emitter connects and controls power supply (GED).Filter capacitor (C2) is designed to drive (U1), (U2) operate in saturation 1/20 to 1/40 second with the loading capacity of (C3).When power supply is normal, (U1), (U2) maintain saturation conduction, and circuit output point (PL) is low level; When generation power supply breaks phase time, (U1), (U2) end, and circuit output point (PL) is high level.This open-phase detection circuit can judge testing result by simple low and high level, and its output both can directly be connected with digital circuit, also directly can be connected with analogous circuit, not need software computing, simple circuit, easy to use.Application photoelectrical coupler detects, and its mouth achieves the electrical isolation to power supply, and antijamming capability is strong, and working stability is reliable.
Below launch to describe to invention has been with embodiment by reference to the accompanying drawings, this description does not have restricted, and be also the embodiment that the present invention is formed shown in accompanying drawing, technical scheme of the present invention is not limited thereto.Those of ordinary skill in the art should be understood that, when not departing from design philosophy of the present invention, reality of the present invention implements the change also had in some details.So as long as aim according to the invention, these changes include within protection scope of the present invention.
Claims (3)
1. an elevator control cabinet, comprise the compositions such as integrated controller, braking resistor, vital circuit, running control circuit, open phase protection, control supply unit, it is characterized in that: the contactless switch in described running control circuit is DC operation electromagnetic contactor, control supply unit is the Switching Power Supply based on DC/DC conv, a wherein part for the integrated controller of open phase protection; The input termination elevator power supply source of described control power supply, mouth is multi-channel dc power supply, is linked among the elevator control circuits such as integrated controller, vital circuit, running control circuit and band-type brake respectively; Its input end of the open-phase detection circuit of described open phase protection is connected with the power input terminal of integrated controller, and its mouth connects frequency converter and exports blocking-up circuit, phase failure relay circuit and open-phase indicting circuit.
2. elevator control cabinet as claimed in claim 1, is characterized in that: described control supply unit be input as AC220V civil power, through rectifying and wave-filtering, DC/DC conversion, export as DC110V and DC24V power supply; DC110V power supply "-" end ground connection wherein, "+" end is through vital circuit, running control circuit, the band-type brake circuit of fuse access elevator; DC24V power supply "-" end ground connection, "+" end connects integrated controller computer control board through fuse.
3. elevator control cabinet as claimed in claim 1, it is characterized in that: the open-phase detection circuit of described open phase protection is the testing circuit based on photoelectrical coupler technology, comprise the rectifier diode and limiting capacitor that are connected to power supply first-phase, form first-phase half-wave rectifying circuit by rectifier diode and limiting capacitor; Power supply second-phase half-wave rectifying circuit is identical with the structure of first-phase half-wave rectifying circuit; First-phase, second-phase half-wave rectifying circuit access zener diode and filter capacitor respectively as load; The anode of first, second photoelectrical coupler is connected respectively to the positive pole of first-phase, second-phase mains half-wave rectifying circuit after serial connection current-limiting resistance, and its negative electrode is connected respectively to the negative pole of first-phase, second-phase mains half-wave rectifying circuit; The emitter of the first photoelectrical coupler is connected with the collecting electrode of the second photoelectrical coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310373520.2A CN104418194A (en) | 2013-08-23 | 2013-08-23 | Elevator control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310373520.2A CN104418194A (en) | 2013-08-23 | 2013-08-23 | Elevator control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104418194A true CN104418194A (en) | 2015-03-18 |
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ID=52968469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310373520.2A Pending CN104418194A (en) | 2013-08-23 | 2013-08-23 | Elevator control cabinet |
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| CN (1) | CN104418194A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452130A (en) * | 2016-11-29 | 2017-02-22 | 株洲麦格米特电气有限责任公司 | Power source of elevator contracting brake |
| CN109095298A (en) * | 2018-08-21 | 2018-12-28 | 苏州汇川技术有限公司 | Elevator device |
| CN109592550A (en) * | 2019-01-24 | 2019-04-09 | 通力电梯有限公司 | Control cabinet and escalator including it |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006151577A (en) * | 2004-11-29 | 2006-06-15 | Toshiba Elevator Co Ltd | Elevator control device |
| CN2834014Y (en) * | 2005-06-28 | 2006-11-01 | 广州日立电梯有限公司 | Energy-saving drive controller for elevator |
| 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 |
| CN202586732U (en) * | 2012-02-28 | 2012-12-05 | 朱延东 | Open-phase protection circuit of frequency converter |
| CN202687673U (en) * | 2012-07-10 | 2013-01-23 | 广东铃木电梯有限公司 | Elevator control cabinet |
| CN203439864U (en) * | 2013-08-23 | 2014-02-19 | 天津豪雅科技发展有限公司 | Elevator control cabinet |
-
2013
- 2013-08-23 CN CN201310373520.2A patent/CN104418194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006151577A (en) * | 2004-11-29 | 2006-06-15 | Toshiba Elevator Co Ltd | Elevator control device |
| CN2834014Y (en) * | 2005-06-28 | 2006-11-01 | 广州日立电梯有限公司 | Energy-saving drive controller for elevator |
| 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 |
| CN202586732U (en) * | 2012-02-28 | 2012-12-05 | 朱延东 | Open-phase protection circuit of frequency converter |
| CN202687673U (en) * | 2012-07-10 | 2013-01-23 | 广东铃木电梯有限公司 | Elevator control cabinet |
| CN203439864U (en) * | 2013-08-23 | 2014-02-19 | 天津豪雅科技发展有限公司 | Elevator control cabinet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452130A (en) * | 2016-11-29 | 2017-02-22 | 株洲麦格米特电气有限责任公司 | Power source of elevator contracting brake |
| CN109095298A (en) * | 2018-08-21 | 2018-12-28 | 苏州汇川技术有限公司 | Elevator device |
| CN109095298B (en) * | 2018-08-21 | 2021-01-19 | 苏州汇川技术有限公司 | Elevator system |
| CN109592550A (en) * | 2019-01-24 | 2019-04-09 | 通力电梯有限公司 | Control cabinet and escalator including it |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |