CN203439864U - Elevator control cabinet - Google Patents
Elevator control cabinet Download PDFInfo
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- CN203439864U CN203439864U CN201320520339.5U CN201320520339U CN203439864U CN 203439864 U CN203439864 U CN 203439864U CN 201320520339 U CN201320520339 U CN 201320520339U CN 203439864 U CN203439864 U CN 203439864U
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Abstract
The utility model discloses an elevator control cabinet. An industrial frequency transformer type control power supply is replaced by an isolation type switch power supply, and an open-phase protection circuit is arranged in an integrated controller. The input end of a control power supply is connected with an elevator power supply, and the output end of the control power supply is multiple paths of direct-current power supplies which are connected into elevator control circuits such as the integrated controller, a safety circuit, an operation control circuit and a brake respectively. In order to adapt to power supply of the switch power supply, a contactor in the operation control circuit is a direct-current operation electromagnetic contactor. The detection circuit input end of an open-phase protection device is connected with a power supply input terminal of the integrated controller, and the detection circuit output end of the open-phase protection device is connected with a frequency converter output blocking circuit, an open-phase protection relay and an open-phase indicating circuit. The structure and the technology of the elevator control cabinet can be simplified, the production cost can be saved, and lightness and miniaturization of an elevator control system are facilitated.
Description
Technical field
The utility model relates to the electrical equipment of elevator, specifically, is a kind of electric apparatus to lift facility operation control and electric security protector.
Background technology
Existing elevator generally adopts frequency control electric drive system, and application continuum controller is assembled the current technology such as elevator control cabinet.Its control housing is conventionally by integrated controller, braking resistor, vital circuit, running control circuit, power supply open-phase protection circuit, and the Industrial Frequency Transformer of the Switching Power Supply of output DC24V, output DC110V and AC110V is controlled 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, mouth access security circuit is relatively many in the wiring of control housing; Industrial Frequency Transformer in control housing is controlled power supply, and volume and weight are relatively large, conventionally do not possess voltage stabilizing and current-limiting function.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, provides a kind of and uses isolation type switching power supply to replace Industrial Frequency Transformer to control power supply, open-phase protection circuit is arranged to the elevator control cabinet among integrated controller.
The utility model solves the technical scheme that its technical matters adopts: 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, controlling 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 into respectively among the elevator control circuits such as integrated controller, vital circuit, running control circuit and band-type brake; 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 output blocking circuit, phase failure relay circuit and disconnected phase indicating circuit.
Described elevator control cabinet, it controls supply unit can be the input of AC220V civil power, through rectifying and wave-filtering, DC/DC conversion, is output 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 the limiting capacitor that are connected to power supply first-phase, by rectifier diode and limiting capacitor, form first-phase half-wave rectifying circuit; 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 respectively zener diode and filter capacitor as load; The anode of first, second photoelectrical coupler is connected respectively to the positive pole of first-phase, second-phase power supply 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 power supply half-wave rectifying circuit; The emitter of the first photoelectrical coupler is connected with the collecting electrode of the second photoelectrical coupler.
The utility model compared with prior art, has the following advantages and beneficial effect:
1. adopt isolation type switching power supply to replace the elevator being formed by Industrial Frequency Transformer and control power supply, meeting under the prerequisite of elevator control circuit power demands, weight and volume that elevator is controlled supply unit reduce, designs simplification, efficiency improves, temperature rise reduces, and is conducive to lightness, the miniaturization of apparatus for controlling elevator.
2. elevator control cabinet power supply open phase protection is arranged among elevator integrated controller; replaced discrete dislocation phase protective relay; can simplify elevator control cabinet structure and technique, save production cost, can meet the concrete technical requirements of national legislation standard to elevator fault-phase protection.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further set forth, so that technical characterictic of the present utility model and advantage be easier to be understood by those skilled in the art, thereby protection domain of the present utility model is made more clearly and being defined.
Fig. 1 is the constructional drawing of the utility model embodiment.
Fig. 2 is the constructional drawing of open phase protection embodiment.
Fig. 3 is the constructional drawing that switch power supply type is controlled 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 converter output blocking circuits, 12. disconnected phase indicating circuits, 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.
The specific embodiment
The elevator control cabinet that is applicable to adopt integrated controller assembling embodiment illustrated in fig. 1.With the like product comparison of prior art, replaced the dislocation phase protective relay that the elevator that is comprised of Industrial Frequency Transformer is controlled power supply and discrete setting, more compact structure, volume is little, lightweight.
Integrated controller is the device that the driving frequency converter of elevator and control microcomputer plate are united two into one, and application is universal gradually.In Fig. 1, open phase protection is arranged among integrated controller (2), has replaced in prior art the dislocation phase protective relay in the discrete setting of elevator control cabinet; Controlling power supply (6) is the Switching Power Supply that isolated DC/DC conv forms, realized the electrical isolation of output with input, it inputs termination elevator power supply source (1), mouth is multi-channel dc power supply, is linked into respectively among the elevator control circuits such as integrated controller (2), vital circuit (7), running control circuit (4) and band-type brake (8); For adapting to Switching Power Supply 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 utility model embodiment; 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 output blocking circuit (11), phase failure relay circuit (13) and disconnected phase indicating circuit (12).Open-phase detection circuit (10) application photoelectrical coupler detects the phase voltage of power supply, when recognizing wherein mutually or when two-phase is opened circuit of three phase mains, drive immediately frequency converter output blocking circuit (11) to implement " current flowing in blocking-up static cell ", normally in frequency converter, DSP circuit is realized; Drive the output contact action of phase failure relay circuit (13), by the contactless switch of vital circuit (7) operation and control control circuit, cut off the supply line of elevator drive electrical motor; By phase indicator circuit (7), shown in real time without open phase fault, to facilitate check and upkeep operation.
Fig. 3 is that the switch power supply type of the utility model embodiment is controlled power supply architecture figure.Switching Power Supply has become a kind of modular product of technology maturation, is progressively replacing the application of Industrial Frequency Transformer on middle-size and small-size power supply.The utility model has selected isolated DC/DC conv to form Switching Power Supply, has realized the electrical isolation of output with input, can have the multichannel output of different voltages, can meet the power demands of elevator control circuit.
Technical standard to the requirement of 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 member 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 have been realized electrical isolation with AC input terminal (14), its "-" termination enters the ground wire of elevator device, "+" end is linked into respectively integrated controller computer control board (24), vital circuit (7), running control circuit (21), band-type brake circuit (8) through fuse (19), (20), (21), (22), the rated current of its fuse is by corresponding load apolegamy.Like this, when ground connection or contacting metal member occur for above-mentioned elevator control circuit, while causing ground connection, 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, with this, realize the control that elevator drive main frame is shut down, play the effect of ground protection.
Fig. 4 is the disconnected embodiment circuit diagram that detects mutually.In figure, rectifier diode (D1) forms first-phase half-wave rectifying circuit with current limiting capacitance (C1), and zener diode (D3) is load with filter capacitor (C2); Rectifier diode (D2) forms second-phase half-wave rectifying circuit with current limiting capacitance (C1), and zener diode (D4) is load with filter capacitor (C3); This circuit is used 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 respectively current-limiting resistance (R1), (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 and controls power supply (+) through resistance (R3), 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 loading capacity (C3).When power supply is normal, (U1), (U2) maintain saturation conduction, circuit output point (PL) is low level; When there is the disconnected phase time of power supply, (U1), (U2) cut-off, circuit output point (PL) is high level.This open-phase detection circuit can be by simple low and high level judgement testing result, and its output both can directly be connected with digital circuit, also can directly be connected with analogous circuit, did not need software computing, and simple circuit is easy to use.Application photoelectrical coupler detects, and its mouth has been realized the electrical isolation to power supply, and antijamming capability is strong, and working stability is reliable.
Below with embodiment, the utility model 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 utility model forms, and the technical solution of the utility model is not limited to this.Those of ordinary skill in the art should be understood that, in the situation that not departing from the utility model design philosophy, and the actual variation in some details of implementing also to have of the present utility model.So as long as meet aim of the present utility model, these variations include within protection domain of the present utility model.
Claims (3)
1. an elevator control cabinet, comprise that integrated controller, braking resistor, vital circuit, running control circuit, open phase protection, control supply unit form, it is characterized in that: the contactless switch in described running control circuit is DC operation electromagnetic contactor, controlling 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 into respectively among integrated controller, vital circuit, running control circuit and band-type brake elevator control circuit; 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 output blocking circuit, phase failure relay circuit and disconnected phase indicating 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, be output 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 the limiting capacitor that are connected to power supply first-phase, by rectifier diode and limiting capacitor, form first-phase half-wave rectifying circuit; 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 respectively zener diode and filter capacitor as load; The anode of first, second photoelectrical coupler is connected respectively to the positive pole of first-phase, second-phase power supply 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 power supply 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 |
|---|---|---|---|
| CN201320520339.5U CN203439864U (en) | 2013-08-23 | 2013-08-23 | Elevator control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520339.5U CN203439864U (en) | 2013-08-23 | 2013-08-23 | Elevator control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203439864U true CN203439864U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320520339.5U Expired - Fee Related CN203439864U (en) | 2013-08-23 | 2013-08-23 | Elevator control cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN203439864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418194A (en) * | 2013-08-23 | 2015-03-18 | 天津豪雅科技发展有限公司 | Elevator control cabinet |
| CN106144810A (en) * | 2016-07-13 | 2016-11-23 | 天津鑫宝龙电梯集团有限公司 | A kind of control cabinet for elevator group controlling |
| CN109095298A (en) * | 2018-08-21 | 2018-12-28 | 苏州汇川技术有限公司 | Elevator device |
-
2013
- 2013-08-23 CN CN201320520339.5U patent/CN203439864U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418194A (en) * | 2013-08-23 | 2015-03-18 | 天津豪雅科技发展有限公司 | Elevator control cabinet |
| CN106144810A (en) * | 2016-07-13 | 2016-11-23 | 天津鑫宝龙电梯集团有限公司 | A kind of control cabinet for elevator group controlling |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20190823 |