CN218664846U - Elevator flat bed energy-saving protection device - Google Patents
Elevator flat bed energy-saving protection device Download PDFInfo
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- CN218664846U CN218664846U CN202223216545.5U CN202223216545U CN218664846U CN 218664846 U CN218664846 U CN 218664846U CN 202223216545 U CN202223216545 U CN 202223216545U CN 218664846 U CN218664846 U CN 218664846U
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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 utility model belongs to the technical field of the elevator, a flat bed energy-saving protection device of elevator is disclosed. The system comprises a main control board, a super-capacity module, a DC/DC converter and an inverter, wherein a first detection end of the main control board is electrically connected with an external commercial power; the input end of the super-capacity module is electrically connected with a bus of an elevator frequency converter in the elevator control cabinet, the detection end is electrically connected with the second detection end of the main control board, and the output end is electrically connected with the input end of the DC/DC converter; the control end of the DC/DC converter is connected with the second control end of the main control board; the control end of the inverter is connected with the first control end of the main control board, and the output end of the inverter is electrically connected with the mains supply and is output to an elevator frequency converter and a control unit in the elevator control cabinet; the input end of the DC/DC converter is electrically connected with the output end of the super-capacity module, and the output end of the DC/DC converter is electrically connected with the input end of the inverter. The inverter output voltage is ensured to stably operate, and meanwhile, the elevator frequency converter operates in a rescue mode, so that the elevator can continuously operate, and trapped people can be rescued.
Description
Technical Field
The utility model belongs to the technical field of the elevator, concretely relates to elevator flat bed energy-saving protection device.
Background
With the development of urbanization and the improvement of science and technology, the height of buildings is continuously increased, and the use of elevators is more and more popular. However, in the use process of the elevator, people are trapped in power failure, the elevator stops running due to sudden power failure of a circuit or breakage of the circuit, and therefore the elevator safety emergency device is paid more and more attention. The conventional emergency device of the elevator generally adopts a lead-acid battery as a backup power supply, and although the battery can be started after the power supply of the elevator is cut off to keep the elevator running, the battery has the defects of short service life, difficulty in maintenance, easiness in damage, poor environmental protection and the like; in the braking process of an elevator motor, energy is fed back to an elevator frequency converter bus, in order to ensure safe and normal operation of an elevator, the conventional elevator frequency converter consumes the energy fed back in the elevator braking process in a heating mode by controlling a braking resistor, the energy generated in the elevator braking process cannot be well utilized, great waste is caused, the concept of energy conservation and emission reduction is not met, and the risk that personnel in the elevator are trapped due to elevator shutdown exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides an elevator flat bed energy-saving protection device, simple structure, easy to maintain, energy-concerving and environment-protective satisfies the requirement of environmental protection.
In order to achieve the above object, the present invention provides the following technical solutions:
an elevator flat-layer energy-saving protection device comprises a main control board, a super-capacity module, a DC/DC converter and an inverter, wherein,
the first detection end of the main control board is electrically connected with an external commercial power;
the detection end of the super-capacity module is electrically connected with the second detection end of the main control board, the input end of the super-capacity module is electrically connected with a bus of an elevator frequency converter in an elevator control cabinet, and the output end of the super-capacity module is electrically connected with the input end of the DC/DC converter;
the control end of the DC/DC converter is electrically connected with the second control end of the main control board;
the control end of the inverter is electrically connected with the first control end of the main control board, and the output end of the inverter is electrically connected with an externally input commercial power wire and is output to an elevator frequency converter and a control unit in an elevator control cabinet;
the input end of the DC/DC converter is electrically connected with the output end of the super-capacity module, and the output end of the DC/DC converter is electrically connected with the input end of the inverter.
Furthermore, the super-capacitor module is a module unit formed by sequentially connecting a plurality of capacitors in series.
Further, the DC/DC converter comprises a diode, an inductor and a MOS tube, wherein,
one end of the inductor is electrically connected with the anode of the diode, and the other end of the inductor is connected with the output end of the super-capacity module;
the drain electrode of the MOS tube is connected to a lead between the inductor and the diode, the grid electrode of the MOS tube is connected to the control end of the main control board, and the source electrode of the MOS tube is connected to the cathode of the super-capacitance module.
Further, the diode is a rectifier diode.
Further, the MOS tube is of an N-channel enhancement type.
Further, the output voltage of the inverter is the mains voltage.
Furthermore, a plurality of capacitors in the super-capacitor module are sequentially connected in series to form a module unit.
Furthermore, the ultra-capacity module is electrically connected with a frequency converter bus in the elevator control cabinet through a contactor.
Further, the contactor is a direct current contactor.
Further, the main control board is a TMS320F28335PGFA chip.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses an elevator flat bed energy-saving protection device, through the energy-saving protection device who increases main control board, super-capacity module, DC/DC converter and DC-to-ac converter in the outside of elevator switch board to be connected the sense terminal of main control board with outside commercial power looks electricity, the control end of super-capacity module is connected with the first control end of main control board, and directly be connected super-capacity module with the converter bus of elevator switch board, make when the commercial power is normal, the energy when the elevator brakes can feed back on the bus, can assist the elevator converter to stabilize the generating line; when the commercial power outage appears, the bus of elevator converter in the elevator control cabinet is disconnected to the super-capacity module, along with the continuous output of braking energy, when the voltage of super-capacity module falls to the minimum busbar voltage of inverter output, DC/DC converter began work, stabilizes inverter busbar voltage, guarantees that inverter output voltage is stable, and the elevator control cabinet is supplied power by the inverter this moment, and the elevator converter is with rescue mode operation, can make the elevator continue to operate to when rescuing stranded personnel, it is energy-conserving high-efficient.
Further, through the direct current bus of super capacitor direct-hanging elevator converter, the energy that elevator converter feedback when the braking tractor directly stored in super capacitor, made the busbar voltage undulant little, consequently practiced thrift the braking circuit cost of elevator converter, super capacitor is green more simultaneously, and whole charge-discharge process does not have chemical reaction, and the charge-discharge number of times increases, the non-staining environment, environmental protection more.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a circuit connection schematic diagram of an elevator flat bed energy-saving protection device of the utility model;
fig. 2 is a schematic diagram of the circuit connection between the elevator flat bed energy-saving protection device and the external elevator control cabinet of the present invention;
the system comprises a main control board 1, a super-capacity module 2, a DC/DC converter 3, an inverter 4, a diode D11, an inductor L, MOS tube Q1, a rectifier bridge 5, a control system power supply transformer 6, a tractor 7, an elevator control cabinet 8 and an elevator frequency converter 9.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
An elevator flat-layer energy-saving protection device is shown in figure 1 and comprises a main control board 1, a super-capacity module 2, a DC/DC converter 3 and an inverter 4, wherein a first detection end of the main control board 1 is electrically connected with an external commercial power; the input end of the super-capacity module 2 is electrically connected to a bus of an elevator frequency converter 9 in an elevator control cabinet 8, the detection end is electrically connected to the second detection end of the main control board 1, and the output end is electrically connected to the input end of the DC/DC converter 3; the control end of the DC/DC converter 3 is connected with the second control end of the main control board 1; the control end of the inverter 4 is connected with the first control end of the main control panel 1, and the output end of the inverter 4 is electrically connected with the mains supply and is output to an elevator frequency converter 9 and a control system power supply transformer 6 in an elevator control cabinet 8; the input end of the DC/DC converter 3 is electrically connected with the output end of the super-capacity module 2, and the output end of the DC/DC converter 3 is electrically connected with the input end of the inverter 4.
Preferably, the model of the main control board 1 is a TMS320F28335PGFA chip.
Specifically, the ultra-capacitor module 2 is a module unit formed by sequentially connecting a plurality of capacitors in series, and is an energy storage unit; the plurality of capacitors in the super capacitor module 2 are preferably the same size. The same capacitors are sequentially connected in series to form the ultra-capacitor module 2, so that the withstand voltage value of the ultra-capacitor module 2 is increased, and the super capacitor has the advantages of long service life, high charging and discharging frequency for tens of thousands of times, capability of large-current charging and discharging, no maintenance, sealing and wide working temperature range; meanwhile, the super capacitor is directly hung on the direct current bus of the elevator frequency converter 9, so that the cost of a charging circuit for the super capacitor is saved; and because the capacity of the super capacitor is large, the super capacitor is directly hung on a direct current bus of the elevator frequency converter 9, and the energy fed back by the tractor 7 is directly stored in the super capacitor when the elevator frequency converter 9 brakes, so that the fluctuation of the bus voltage is small, and the cost of a braking circuit of the elevator frequency converter 9 is saved. Therefore, the super capacitor is more environment-friendly, and the whole charging and discharging process has no chemical reaction and does not pollute the environment.
Preferably, the ultra-capacity module 2 and a frequency converter bus in the elevator control cabinet are electrically connected through a contactor. Preferably the contactor is a dc contactor.
The DC/DC converter 3 is characterized in that in the working process of the elevator flat-layer emergency protection device, the voltage of the ultra-capacitor module 2 continuously drops, stable voltage needs to be provided for the inverter 4 bus through DC/DC conversion, the inverter 4 unit inverts the stable bus voltage converted by the DC/DC into three-phase 380V + N alternating current which is output to an elevator control cabinet, and the elevator frequency converter 9 is used for driving the tractor 7 to run at the rescue speed and releasing trapped people. And meanwhile, the power is supplied to a control system of the elevator control cabinet, such as an elevator car lighting system, an intercom system, monitoring equipment and the like.
Specifically, the DC/DC converter 3 includes a diode D11, an inductor L, MOS, a tube Q1, wherein one end of the inductor L is electrically connected to the positive electrode of the diode D11; the drain electrode of the MOS tube Q1 is connected to a lead between the inductor L and the diode D11, the grid electrode of the MOS tube Q1 is connected to the control end of the main control board 1, and the source electrode of the MOS tube Q1 is connected to the negative electrode of the super-capacity module (2).
Preferably, the MOS transistor Q1 is of an N-channel enhancement type.
Preferably, the diode D11 is a rectifier diode.
Specifically, the output voltage of the inverter 4 is the mains voltage.
As shown in fig. 2, the utility model discloses an energy-conserving protection device of elevator flat bed is when being connected with elevator control cabinet 8, and the input of super-capacity module 2 and the bus electricity of 8 elevator converters 9 of elevator control cabinet are connected among the emergent protection device, and the commercial power of dc-to-ac converter 4 input is connected with the wire electricity between rectifier bridge 5 in the elevator control cabinet 8 and the control system power supply transformer 6 in the elevator control cabinet 8.
The utility model relates to an elevator flat bed energy-saving protection device's principle does, and when the commercial power was normal, elevator flat bed emergency protection device was in standby state, nevertheless super holds module 2 and directly hangs elevator converter 9 generating line, and when motor feedback energy arrived the generating line at every turn, the super holds help elevator converter 9 and stabilizes the bus. When the mains supply is cut off, the super-capacity module 2 cuts off a bus of the elevator frequency converter 9, the elevator control cabinet is powered by the inverter 4, the elevator frequency converter 9 operates in a rescue mode, trapped people are rescued, energy output is continuously provided, the voltage of the super-capacity module 2 drops to the lowest bus voltage output by the inverter 4, the DC/DC converter 3 starts to work, the bus voltage of the inverter 4 is stabilized, and the output voltage of the inverter 4 is ensured to be stable; inverter 4 outputs three-phase 380V + N, can take three-phase or single-phase unbalanced load, satisfies elevator switch board operation power supply demand, long service life, easy maintenance, more energy-concerving and environment-protective elevator flat bed emergency protection device.
Specifically, the utility model provides a control end, input, the output of all original papers correspond each other and connect. Implicitly connected ports or unnoticed port connections are all connections known to those skilled in the art.
It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the claims of the invention.
Claims (10)
1. An elevator flat floor energy-saving protection device is characterized by comprising a main control board (1), a super capacity module (2), a DC/DC converter (3) and an inverter (4), wherein,
the first detection end of the main control board (1) is electrically connected with an external commercial power;
the detection end of the super-capacity module (2) is electrically connected to the second detection end of the main control panel (1), the input end of the super-capacity module is electrically connected with a bus of an elevator frequency converter (9) in an elevator control cabinet (8), and the output end of the super-capacity module is electrically connected with the input end of the DC/DC converter (3);
the control end of the DC/DC converter (3) is electrically connected with the second control end of the main control board (1);
the control end of the inverter (4) is connected with the first control end of the main control panel (1), and the output end of the inverter (4) is electrically connected with an externally input commercial power lead and is output to an elevator frequency converter (9) and a control system power supply transformer (6) in an elevator control cabinet (8);
the input end of the DC/DC converter (3) is electrically connected with the output end of the super-capacity module (2), and the output end of the DC/DC converter (3) is electrically connected with the input end of the inverter (4).
2. The elevator flat floor energy-saving protection device according to claim 1, characterized in that the super-capacity module (2) is a module unit formed by a plurality of capacitors connected in series in sequence.
3. The elevator flat floor energy-saving protection device according to claim 1, wherein the DC/DC converter (3) comprises a diode (D11), an inductor (L) and a MOS tube (Q1), wherein,
one end of the inductor (L) is electrically connected with the positive electrode of the diode (D11), and the other end of the inductor (L) is connected with the output end of the super-capacity module;
the drain electrode of the MOS tube (Q1) is connected to a lead between the inductor (L) and the diode (D11), the grid electrode of the MOS tube is connected to the control end of the main control board (1), and the source electrode of the MOS tube is connected to the negative electrode of the super-capacitor module (2).
4. The elevator flat floor energy-saving protection device according to claim 3, characterized in that the diode (D11) is a rectifier diode.
5. The elevator flat floor energy-saving protection device according to claim 3, characterized in that the MOS transistor (Q1) is of an N-channel enhancement type.
6. The elevator flat floor energy-saving protection device according to claim 1, characterized in that the output voltage of the inverter (4) is mains voltage.
7. The elevator flat floor energy-saving protection device according to claim 1, characterized in that a plurality of capacitors in the super-capacity module (2) are sequentially connected in series to form a module unit.
8. The elevator flat floor energy-saving protection device according to claim 1, characterized in that the bus of the elevator frequency converter (9) in the super capacity module (2) and the elevator control cabinet (8) are electrically connected through a contactor.
9. The elevator flat bed energy saving protection device according to claim 8, wherein the contactor is a DC contactor.
10. The elevator flat floor energy-saving protection device according to claim 1, characterized in that the main control board (1) is a TMS320F28335PGFA chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223216545.5U CN218664846U (en) | 2022-11-30 | 2022-11-30 | Elevator flat bed energy-saving protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223216545.5U CN218664846U (en) | 2022-11-30 | 2022-11-30 | Elevator flat bed energy-saving protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218664846U true CN218664846U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223216545.5U Active CN218664846U (en) | 2022-11-30 | 2022-11-30 | Elevator flat bed energy-saving protection device |
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| Country | Link |
|---|---|
| CN (1) | CN218664846U (en) |
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- 2022-11-30 CN CN202223216545.5U patent/CN218664846U/en active Active
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