CN114744668A - Energy feedback device for elevator - Google Patents
Energy feedback device for elevator Download PDFInfo
- Publication number
- CN114744668A CN114744668A CN202210186760.0A CN202210186760A CN114744668A CN 114744668 A CN114744668 A CN 114744668A CN 202210186760 A CN202210186760 A CN 202210186760A CN 114744668 A CN114744668 A CN 114744668A
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- power
- terminal
- power supply
- transmission circuit
- normally closed
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- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 230000005611 electricity Effects 0.000 claims description 32
- 238000012423 maintenance Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an energy feedback device for an elevator, which comprises a power supply circuit, wherein a traction machine supplies power to the power supply circuit through a frequency converter, the power supply circuit supplies power to an external power utilization part, the power supply circuit comprises a first transmission circuit and a second transmission circuit, the first transmission circuit and the second transmission circuit can respectively supply power to the external power utilization part, the external power utilization part is only supplied with power by the first transmission circuit under the condition of no power failure, and the power supply circuit is switched to the second transmission circuit to supply power when the electric quantity of the first transmission circuit is used up under the condition of power failure. The first transmission circuit and the second transmission circuit can respectively supply power to the external power utilization component, the first transmission circuit only supplies power to the external power utilization component under the condition of no power failure, and the second transmission circuit is switched to supply power under the condition of power failure, so that the power of the external power utilization component can be continuously supplied for a long time when the power failure occurs.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to an energy feedback device for an elevator.
Background
Because the vertical ladders are all provided with the counterweight blocks, the weight of the counterweight blocks is about the dead weight of the elevator car plus one-half rated load. When the elevator is in light load ascending or heavy load descending, the traction machine is in a power generation state (braking), and correspondingly shows that the voltage of the direct-current bus of the frequency converter is increased.
In the prior art, the braking energy of the elevator is stored in the battery pack, and the battery pack can supply power to the elevator again so as to fully utilize the energy, but only one battery pack is usually arranged. When power failure occurs, if the battery pack is just in a low-power state, the power supply cannot be provided for the articles in the elevator, and the battery pack cannot be a necessary part for continuing. In addition, the conventional device consumes relatively much power.
Disclosure of Invention
The invention aims to provide an energy feedback device for an elevator, which can ensure that necessary components can be continuously supplied with electricity for a long time when power is cut off.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an energy feedback device for elevator, including supply circuit, the hauler supplies to charge to supply circuit through the converter, supply circuit supplies power to outside power consumption part, supply circuit includes first transmission circuit and second transmission circuit, first transmission circuit and second transmission circuit can supply power to outside power consumption part respectively, only supply power to outside power consumption part by first transmission circuit under the condition of not having taken place the power failure, under the first transmission circuit power consumption's that has taken place the power failure condition, switch to the power supply of second transmission circuit.
Further, the first transmission circuit includes:
the first power storage module can store the electricity generated by the tractor through the frequency converter;
the inverter module is used for converting the electricity of the first electricity storage module into alternating current for external electricity utilization parts to use;
the power supply switching module is in power supply connection with the inverter module and the power grid, and is switched to the power grid for power supply when the electric quantity of the first power storage module is low, and is switched to the first power storage module for power supply when the electric quantity of the first power storage module is high;
the normally closed switch K3-1 and the normally closed switch K3-1 are connected between the power supply switching module and external electric components;
the coil KM2, the coil KM2 is connected between the power supply switching module and the external power utilization component;
the second transmission circuit includes:
the second power storage module can store the electricity generated by the tractor through the frequency converter;
the inverter module is used for converting the electricity of the second electricity storage module into alternating current for external electricity utilization parts to use;
the normally closed switch K2-1 and the normally closed switch K2-1 are connected between the inverter module and an external electric component;
and the coil KM3 and the coil KM3 are connected between the power supply switching module and external electric parts.
Further, the external power consumption part includes essential parts and unnecessary parts.
Further, the positive electrode of the output end of the power supply circuit is connected with the first end of the essential component, the second end of the essential component is connected with the first end of the coil KM1, the second end of the coil KM1 is connected with the negative electrode of the output end of the power supply circuit, the first end of the normally closed switch K1-1 is connected with the positive electrode of the output end of the power supply circuit, the second end of the normally closed switch K1-1 is connected with the first end of the essential component, the second end of the essential component is connected with the negative electrode of the output end of the power supply circuit, the first end of the normally closed switch K3-1 is connected with the positive electrode of the output end of the power supply circuit, the second end of the normally closed switch K3-1 is connected with the first end of the non-essential component, and the second end of the non-essential component is connected with the negative electrode of the output end of the power supply circuit.
Furthermore, the first end of the K weight switch is connected with the positive pole of the output end of the power supply circuit, the second end of the K weight switch is connected with the first end of the delay coil KT, the second end of the delay coil KT is connected with the negative pole of the output end of the power supply circuit, and the delay normally closed switch KT-1 is connected between the normally closed switch K3-1 and unnecessary components.
Compared with the prior art, the invention has the beneficial effects that:
(1) the first transmission circuit and the second transmission circuit can respectively supply power to the external power utilization component, the first transmission circuit only supplies power to the external power utilization component under the condition of no power failure, and the second transmission circuit is switched to supply power under the condition of power failure, so that the external power utilization component can be continuously supplied with power for a long time when the power failure occurs;
(2) when a power failure condition occurs, the second transmission device supplies power to necessary components and unnecessary components such as advertising boards, and when the power failure condition occurs, the second transmission device does not supply power to the unnecessary components and slows down the electric quantity of the second electricity storage module;
(3) when essential components such as a bulb or a fan are broken, the coil KM1 is powered off, the normally closed switch K1-1 is powered on, and standby essential components are started, so that the elevator does not need to be stopped for maintenance immediately, and maintenance personnel can conveniently arrange time for maintenance.
Drawings
Fig. 1 is a schematic structural view of an energy feedback device for an elevator of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment;
fig. 3 is a schematic structural diagram of another embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution of an energy feedback device for an elevator,
an energy feedback device for an elevator comprises a power supply circuit, wherein a traction machine supplies power to the power supply circuit through a frequency converter, and the power supply circuit supplies power to an external electric component.
The power supply circuit comprises a first transmission circuit and a second transmission circuit, the first transmission circuit and the second transmission circuit can respectively supply power to the external power consumption component, and only the first transmission circuit supplies power to the external power consumption component under the condition of no power failure; and when power failure occurs, the first transmission circuit is switched to the second transmission circuit to supply power under the condition that the electric quantity of the first transmission circuit is used up.
The first transmission circuit includes:
the first power storage module can store the electricity generated by the tractor through the frequency converter;
the inverter module is used for converting the electricity of the first electricity storage module into alternating current for external electricity utilization parts to use;
the power supply switching module is in power supply connection with the inverter module and the power grid, and is switched to the power grid for power supply when the electric quantity of the first power storage module is low, and is switched to the first power storage module for power supply when the electric quantity of the first power storage module is high;
the normally closed switch K3-1 is connected between the power supply switching module and an external electric component, and the normally closed switch K3-1 is connected between the power supply switching module and the external electric component;
and the coil KM2 and the coil KM2 are connected between the power supply switching module and external electric parts.
The second transmission circuit includes:
the second power storage module can store the electricity generated by the tractor through the frequency converter;
the inverter module is used for converting the electricity of the second electricity storage module into alternating current for external electricity utilization parts to use;
the normally closed switch K2-1 and the normally closed switch K2-1 are connected between the inverter module and an external electric component;
and the coil KM3 and the coil KM3 are connected between the power supply switching module and external electric parts.
The external electricity utilization part comprises necessary parts and unnecessary parts, the necessary parts are bulbs, fans, emergency treatment buttons and the like, and when a power failure condition occurs, the second transmission device transmits the power to the necessary parts. The unnecessary components are billboards and the like, and when a power failure condition occurs, the second transmission device does not supply power to the unnecessary components.
As shown in FIG. 2, the circuit diagram for supplying power to the external power utilization component by the power supply circuit is provided, wherein the positive electrode of the output end of the power supply circuit is connected with the first end of the necessary component, the second end of the necessary component is connected with the first end of the coil KM1, the second end of the coil KM1 is connected with the negative electrode of the output end of the power supply circuit, the first end of the normally closed switch K1-1 is connected with the positive electrode of the output end of the power supply circuit, the second end of the normally closed switch K1-1 is connected with the first end of the necessary component, the second end of the necessary component is connected with the negative electrode of the output end of the power supply circuit, the first end of the normally closed switch K3-1 is connected with the positive electrode of the output end of the power supply circuit, the second end of the normally closed switch K3-1 is connected with the first end of the unnecessary component, and the second end of the unnecessary component is connected with the negative electrode of the output end of the power supply circuit.
The first transmission circuit and the second transmission circuit of the power supply circuit supply power to the external power consumption component independently. When the power grid normally supplies power, the first transmission circuit (the first power storage module or the power grid) normally supplies power to the necessary components and the unnecessary components, the coil KM1 is electrified, the normally closed switch K1-1 is opened, and the necessary components are not electrified. The coil KM2 is electrified, and the normally closed switch K2-1 is disconnected, so that the second transmission circuit is powered off when the first transmission circuit is electrified.
When essential components such as a bulb or a fan are broken, the coil KM1 is powered off, the normally closed switch K1-1 is powered on, and standby essential components are started, so that the elevator does not need to be stopped for maintenance immediately, passengers and maintenance personnel are facilitated, and the maintenance personnel can arrange time for maintenance.
When power failure occurs and the power of the first power storage module is used up, the coil KM2 loses power, the normally closed switch K2-1 is opened, and the second power storage module supplies power to the external electric component. At the moment, the coil KM3 is electrified, the normally closed switch K3-1 is opened, and unnecessary parts lose electricity, so that the loss of the electric quantity of the second electricity storage module can be reduced.
As shown in fig. 3, a first end of a K weight switch is connected to a positive electrode of an output end of a power supply circuit, a second end of the K weight switch is connected to a first end of a delay coil KT, a second end of the delay coil KT is connected to a negative electrode of the output end of the power supply circuit, and a delay normally-closed switch KT-1 is connected between a normally-closed switch K3-1 and an optional component.
Have weight in the weight sensor detects the car when elevator car, the acquiescence is someone in the car, K weight switch closes, delay coil KT gets electric, unnecessary parts such as advertisement normal play, when people in the car are all gone away, K weight switch opens, delay time T does not have the people to get into the car this moment in the second (because the people have the condition that someone entered the car after going out when opening the door, delay normal close switch KT-1 opens, the advertisement closes the broadcast, thereby can use electricity sparingly, only in someone just broadcast the advertisement in the car.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an energy feedback device for elevator, its characterized in that, including supply circuit, the hauler supplies to charge to supply circuit through the converter, supply circuit supplies power to outside consumer, supply circuit includes first transmission circuit and second transmission circuit, first transmission circuit and second transmission circuit can supply power to outside consumer respectively, only supply power to outside consumer by first transmission circuit under the condition that does not take place to have a power failure, under the condition that the first transmission circuit electric quantity of taking place to have a power failure runs out, switch to the power supply of second transmission circuit.
2. The energy feedback device for elevator according to claim 1,
the first transmission circuit includes:
the first power storage module can store the electricity generated by the tractor through the frequency converter;
the inverter module is used for converting the electricity of the first electricity storage module into alternating current for external electricity utilization parts to use;
the power supply switching module is in power supply connection with the inverter module and the power grid, and is switched to the power grid for power supply when the electric quantity of the first power storage module is low, and is switched to the first power storage module for power supply when the electric quantity of the first power storage module is high;
the normally closed switch K3-1 is connected between the power supply switching module and an external electric component, and the normally closed switch K3-1 is connected between the power supply switching module and the external electric component;
the coil KM2, the coil KM2 is connected between the power supply switching module and the external power utilization component;
the second transmission circuit includes:
the second electricity storage module can store electricity generated by the tractor through the frequency converter;
the inverter module is used for converting the electricity of the second electricity storage module into alternating current for external electricity utilization parts to use;
the normally closed switch K2-1 and the normally closed switch K2-1 are connected between the inverter module and an external electric component;
and the coil KM3 and the coil KM3 are connected between the power supply switching module and external electric components.
3. The energy feedback device for elevator as claimed in claim 2, wherein the external electricity consuming parts include essential parts and non-essential parts.
4. The energy feedback device for the elevator as claimed in claim 3, wherein the positive terminal of the output terminal of the power supply circuit is connected to the first terminal of the essential component, the second terminal of the essential component is connected to the first terminal of the coil KM1, the second terminal of the coil KM1 is connected to the negative terminal of the output terminal of the power supply circuit, the first terminal of the normally closed switch K1-1 is connected to the positive terminal of the output terminal of the power supply circuit, the second terminal of the normally closed switch K1-1 is connected to the first terminal of the essential component, the second terminal of the essential component is connected to the negative terminal of the output terminal of the power supply circuit, the first terminal of the normally closed switch K3-1 is connected to the positive terminal of the power supply circuit, the second terminal of the normally closed switch K3-1 is connected to the first terminal of the unnecessary component, and the second terminal of the unnecessary component is connected to the negative terminal of the output terminal of the power supply circuit.
5. An energy feedback device for an elevator as defined in claim 4, characterized in that the first terminal of the K weight switch is connected to the positive terminal of the output of the power supply circuit, the second terminal of the K weight switch is connected to the first terminal of the time-delay coil KT, the second terminal of the time-delay coil KT is connected to the negative terminal of the output of the power supply circuit, and the time-delay normally closed switch KT-1 is connected between the normally closed switch K3-1 and the optional components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186760.0A CN114744668A (en) | 2022-02-28 | 2022-02-28 | Energy feedback device for elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186760.0A CN114744668A (en) | 2022-02-28 | 2022-02-28 | Energy feedback device for elevator |
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| CN114744668A true CN114744668A (en) | 2022-07-12 |
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| CN202210186760.0A Pending CN114744668A (en) | 2022-02-28 | 2022-02-28 | Energy feedback device for elevator |
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