CN213085146U - Elevator energy-saving device for improving operation reliability of elevator - Google Patents
Elevator energy-saving device for improving operation reliability of elevator Download PDFInfo
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- CN213085146U CN213085146U CN202021269809.1U CN202021269809U CN213085146U CN 213085146 U CN213085146 U CN 213085146U CN 202021269809 U CN202021269809 U CN 202021269809U CN 213085146 U CN213085146 U CN 213085146U
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- storage battery
- battery pack
- traction motor
- elevator
- controller
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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
Abstract
The utility model discloses an elevator energy-saving device, which is connected with a power grid; comprises a controller, a traction motor and a storage battery pack; the controller is respectively connected with the power grid, the traction motor and the storage battery pack. The traction motor works in an electric state, and when the power grid normally supplies power, the power grid supplies power to the traction motor through the controller; when the power grid is cut off, the storage battery supplies power to the traction motor through the controller, and normal operation of the elevator is guaranteed. The traction motor works in a power generation state, and when the charge state of the storage battery pack is lower than a set value, the traction motor charges the storage battery pack through the controller; when the charge state of the storage battery pack is higher than a set value, the traction motor outputs the generated electric energy to the power grid through the controller. The utility model provides an elevator economizer has improved elevator operation's reliability and security when practicing thrift the electric energy.
Description
Technical Field
The utility model belongs to the technical field of the elevator, especially, relate to an elevator economizer that can improve elevator operational reliability.
Background
The elevator can not operate with electric energy, and the electricity consumption of the ordinary elevator which is normally used is about 30 to 150 degrees every day. It follows that elevator energy consumption has become a significant part of building energy consumption. The traction motor is a power component of the elevator, and its operation includes an electromotive state and a power generation (brake feedback) state. In conventional elevator control systems, the energy generated when the hoisting machine is operating in the generating mode is temporarily stored in the capacitor of the dc circuit of the frequency converter, and in order to avoid an overvoltage fault, this energy is usually consumed by connecting a brake resistor to the dc bus. This way causes a great waste of energy and the large amount of generated heat worsens the environment around the elevator control cabinet, reducing the safety of the elevator operation.
Elevators have become an indispensable part of people's daily lives as vehicles. According to statistics, the total reserved quantity of the elevators used in China reaches millions, and the elevator system becomes the country with the largest total reserved quantity of the elevators in the world. In many cities in China, due to the fact that electricity load is large and circuit infrastructure can be aged, power failure happens occasionally, and great inconvenience is brought to elevator users, particularly high-rise residents.
In view of the above, it is desirable to provide a new energy saving device for an elevator to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The technical insufficiency exists, the utility model aims to provide a moxa stick automatic propeller which has simple structure, operates with depression and is convenient to clean.
In order to solve the technical problem, the utility model adopts the following technical scheme:
an elevator energy-saving device for improving the running reliability of an elevator comprises a controller, a traction motor and a storage battery pack, wherein the controller is connected with a power grid; the controller is respectively connected with the power grid, the traction motor and the storage battery pack; when the power grid normally supplies power, the power grid supplies power to the traction motor through the controller; when the power grid is cut off, the storage battery supplies power to the traction motor through the controller.
Preferably, the storage battery pack comprises a state detection module for detecting self information and communicating with the controller in real time, the storage battery pack is provided with three sequentially reduced state of charge setting values, namely a state of charge setting value I, a state of charge setting value II and a state of charge setting value III, the storage battery pack stops charging when the state of charge of the storage battery pack is higher than the state of charge setting value I, the storage battery pack stops discharging when the state of charge of the storage battery pack is lower than the state of charge setting value III, and the storage battery pack discharges when the state of charge of the storage battery pack is higher than the state.
Preferably, when the state of charge of the storage battery pack is lower than a set value, the storage battery pack is charged by the electric energy generated by the traction motor in the power generation state through the controller, otherwise, the electric energy generated by the traction motor in the power generation state is output to the power grid through the controller.
The beneficial effects of the utility model reside in that: when the traction motor works in a power generation state, the generated electric energy can be output to a power grid or a storage battery pack, so that the use of energy consumption resistors in the prior art is avoided, the generation of heat is reduced, the electric energy is saved, and the running safety of the elevator is improved. Due to the storage battery pack, when the power grid is powered off, normal operation of the elevator can be guaranteed, and reliability of the elevator is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the embodiment of the utility model provides an improve elevator operational reliability's elevator economizer's that provides a schematic structure diagram.
Description of reference numerals:
10-a controller; 20-an elevator car; 30-an elevator counterweight; 40-a traction motor; 50-a battery pack; 100-elevator energy saving device; 200-power grid.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic block diagram of an elevator energy saving device 100 according to the present invention. The elevator energy-saving device 100 is connected with the power grid 200, and can realize mutual electric energy transmission. The elevator energy-saving device 100 comprises a controller 10, a traction motor 40 and a storage battery pack 50; the controller 10 is connected to the power grid 200, the traction motor 40, and the battery pack 50, respectively. When the power grid 200 supplies power normally, the power grid 200 supplies power to the traction motor 40 through the controller 10 in the electric state of the traction motor 40; when the power grid 200 is powered off, the traction motor is supplied with power by the storage battery pack through the controller in the electric state. When the charge state of the storage battery pack 50 is higher than the set charge state value in the power generation state of the traction motor 200, the electric energy generated by the traction motor 40 is output to the power grid 200 through the controller 10; when the charge state of the storage battery pack 50 is lower than the charge state set value, the electric energy generated by the traction motor 40 charges the storage battery pack 50 through the controller 10.
The utility model provides an elevator economizer 100 total five operating condition:
the power grid 200 supplies power to the traction motor 40 in an electric state. The power grid 200 supplies power normally, when the weight of the elevator car 20 is larger than that of the elevator counterweight 30 and goes upwards or the weight of the elevator car 20 is smaller than that of the elevator counterweight 30 and goes downwards, the traction motor 40 works in an electric state, and the power grid 200 supplies power to the traction motor 40 through the controller 10.
And the storage battery pack 50 supplies power to the traction motor 40 in an electric state. When the power grid 200 is powered off, when the weight of the elevator car 20 is greater than that of the elevator counterweight 30 and moves upwards or the weight of the elevator car 20 is less than that of the elevator counterweight 30 and moves downwards, the traction motor 40 works in an electric state, the charge state of the storage battery pack 50 is higher than a set value three of the charge state, and the storage battery pack 50 supplies power to the traction motor 40 through the controller 10.
And thirdly, outputting the power generation state of the traction motor 40 to the power grid 200. When the weight of the elevator car 20 is larger than that of the elevator counterweight 30 and moves downwards or the weight of the elevator car 20 is smaller than that of the elevator counterweight 30 and moves upwards, the traction motor 40 works in a power generation state, and if the charge state of the storage battery pack 50 is higher than the set value two of the charge state, the power generated by the traction motor 40 is output to the power grid 200 through the controller 10.
Fourthly, the traction motor 40 is in a power generation state, and the storage battery pack 50 is charged. When the weight of the elevator car 20 is larger than that of the elevator counterweight 30 to move downwards or the weight of the elevator car 20 is smaller than that of the elevator counterweight 30 to move upwards, the traction motor 40 works in a power generation state, and if the charge state of the storage battery pack 50 is lower than the set value two of the charge state, the power generated by the traction motor 40 charges the storage battery pack 50 through the controller 10.
And stopping running. When the power grid 200 is powered off for a long time, the state of charge of the storage battery pack 50 is lower than the state of charge set value three, and in order to protect the storage battery pack 50, the elevator stops running at the moment.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (2)
1. An elevator energy-saving device for improving the running reliability of an elevator is connected with a power grid and is characterized by comprising a controller, a traction motor and a storage battery pack; the controller is respectively connected with the power grid, the traction motor and the storage battery pack; when the power grid normally supplies power, the power grid supplies power to the traction motor through the controller; when the power grid is cut off, the storage battery supplies power to the traction motor through the controller; the storage battery pack comprises a state detection module and is used for detecting self information and communicating with the controller in real time, the storage battery pack is provided with three sequentially reduced charge state set values which are a charge state set value I, a charge state set value II and a charge state set value III, the storage battery pack stops charging when the charge state of the storage battery pack is higher than the charge state set value I, the storage battery pack stops discharging when the charge state of the storage battery pack is lower than the charge state set value III, and the storage battery pack discharges when the charge state of the storage battery pack is higher than the charge state set value II.
2. The energy-saving device for the elevator, according to claim 1, is characterized in that when the state of charge of the storage battery pack is lower than a set value, the storage battery pack is charged by the electric energy generated by the traction motor in the power generation state, otherwise, the electric energy generated by the traction motor in the power generation state is output to the power grid through the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021269809.1U CN213085146U (en) | 2020-07-02 | 2020-07-02 | Elevator energy-saving device for improving operation reliability of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021269809.1U CN213085146U (en) | 2020-07-02 | 2020-07-02 | Elevator energy-saving device for improving operation reliability of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213085146U true CN213085146U (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021269809.1U Active CN213085146U (en) | 2020-07-02 | 2020-07-02 | Elevator energy-saving device for improving operation reliability of elevator |
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| Country | Link |
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| CN (1) | CN213085146U (en) |
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2020
- 2020-07-02 CN CN202021269809.1U patent/CN213085146U/en active Active
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