CN212343338U - Elevator energy-saving device - Google Patents
Elevator energy-saving device Download PDFInfo
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- CN212343338U CN212343338U CN202020322937.1U CN202020322937U CN212343338U CN 212343338 U CN212343338 U CN 212343338U CN 202020322937 U CN202020322937 U CN 202020322937U CN 212343338 U CN212343338 U CN 212343338U
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Abstract
The utility model relates to an elevator economizer, include: the temperature difference power generation system comprises a motor, a temperature difference power generation unit, a frequency converter, a storage battery, an inverter and a controller, wherein the temperature difference power generation unit is attached to the motor, the output end of the temperature difference power generation unit is connected with the input end of the frequency converter, the output end of the frequency converter is connected with the input end of the storage battery, the output end of the storage battery is connected with the input end of the inverter, and the communication end of the inverter is connected with the control end; the controller is used for identifying the phase sequence, the phase, the voltage instantaneous value and the current instantaneous value of the power grid, controlling the inverter according to the identified phase sequence, the phase, the voltage instantaneous value and the current instantaneous value of the power grid to convert the direct current output by the frequency converter into alternating current with the same frequency and phase as the power grid, and outputting the alternating current to the power grid. The utility model discloses can merge the electric energy into the electric wire netting again with the heat conversion that the elevator motor produced, realize the recycle of energy.
Description
Technical Field
The utility model relates to an equipment energy saving field especially relates to an elevator economizer.
Background
Along with the development of cities, an elevator is becoming a tool which is used more frequently in our lives than automobiles, the elevator is a vertical elevator which takes a motor as power, great convenience is provided for daily life and work of people, meanwhile, a large amount of electric energy is consumed, due to the fact that the workload is huge, a motor of the elevator can release a large amount of heat energy in the working process, but the energy is not recycled in the prior art, and energy waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an elevator economizer can carry out recycle to the heat energy that produces when the elevator moves, practices thrift the environmental protection.
In order to achieve the above object, the utility model provides a following scheme:
an elevator energy saving device comprising:
the temperature difference power generation device comprises a motor, a temperature difference power generation unit, a frequency converter, a storage battery, an inverter and a controller, wherein the temperature difference power generation unit is attached to the motor, the output end of the temperature difference power generation unit is connected with the input end of the frequency converter, the output end of the frequency converter is connected with the input end of the storage battery, the output end of the storage battery is connected with the input end of the inverter, and the communication end of the inverter is connected with the control end of the controller;
the motor is used for driving the elevator car to move;
the temperature difference power generation unit is used for converting heat generated by the rotation of the motor into electric energy;
the frequency converter is used for converting the electric energy generated by the temperature difference power generation unit into direct current;
the storage battery is used for storing the direct current output by the frequency converter;
the controller is used for identifying the phase sequence, the phase, the voltage instantaneous value and the current instantaneous value of the power grid, controlling the inverter to convert the direct current output by the frequency converter into alternating current with the same frequency and phase as the power grid according to the identified phase sequence, the phase, the voltage instantaneous value and the current instantaneous value of the power grid, and outputting the alternating current to the power grid.
Optionally, the thermoelectric generation unit includes thermoelectric generation module, thermoelectric generation module includes thermoelectric generation piece, radiating fin and is used for bonding the silica gel layer on the cold junction of thermoelectric generation piece with radiating fin.
Optionally, the thermoelectric generation module is provided in plurality.
Optionally, the system further comprises a rectifying and filtering unit, wherein one end of the rectifying and filtering unit is connected with the output end of the frequency converter, and the other end of the rectifying and filtering unit is connected with the input end of the storage battery; and the direct current output by the frequency converter is rectified and filtered and then is output to the storage battery.
Optionally, the controller controls the inverter to convert the direct current output by the storage battery into alternating current with the same frequency and phase as those of the 220V single-phase alternating current power grid.
Optionally, the controller controls the inverter to convert the direct current output by the storage battery into alternating current with the same frequency and phase as the 380V three-phase alternating current network.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model discloses utilize thermoelectric generation unit to merge the heat conversion that elevator motor produced into the electric energy into the electric wire netting again, realized the recycle of energy, practice thrift the environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 inventive labor.
Fig. 1 is the structure schematic diagram of the elevator energy-saving device of the utility model.
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.
The utility model aims at providing an elevator economizer can carry out recycle to the heat energy that produces when the elevator moves, practices thrift the environmental protection.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is the utility model discloses elevator economizer schematic structure, as shown in fig. 1, an elevator economizer includes:
the system comprises a motor 101, a temperature difference power generation unit 102, a frequency converter 103, a storage battery 104, an inverter 105 and a controller 106, wherein the temperature difference power generation unit 102, the frequency converter 103, the storage battery 104, the inverter 105 and the controller 106 are sequentially connected, and the controller 106 and the inverter 105 are also connected with a power grid;
the thermoelectric generation unit 102 is attached to the motor 101, the output end of the thermoelectric generation unit 102 is connected to the input end of the frequency converter 103, the output end of the frequency converter 103 is connected to the input end of the storage battery 104, the output end of the storage battery 104 is connected to the input end of the inverter 105, and the communication end of the inverter 105 is connected to the control end of the controller 106;
the motor 101 is used for driving the elevator car to move; the thermoelectric generation unit 102 is used for converting heat generated by the rotation of the motor into electric energy; the frequency converter 103 is used for converting the electric energy generated by the thermoelectric generation unit into direct current; the storage battery 104 is used for storing the direct current output by the frequency converter; the controller 106 is configured to identify a phase sequence, a phase, a voltage instantaneous value, and a current instantaneous value of the power grid, and control the inverter 105 to convert the direct current output by the frequency converter 103 into an alternating current with the same frequency and phase as the power grid according to the identified phase sequence, phase, voltage instantaneous value, and current instantaneous value of the power grid, and output the alternating current to the power grid.
Specifically, thermoelectric generation unit 102 includes a plurality of thermoelectric generation modules, and a plurality of thermoelectric generation modules link together, the thermoelectric generation module includes thermoelectric generation piece, radiating fin and is used for bonding the silica gel layer on the cold junction of thermoelectric generation piece with radiating fin including thermoelectric generation piece, radiating fin.
The thermoelectric generation piece includes cold junction and hot junction, and wherein, the cold junction bonds with the silica gel layer, makes radiating fin bond on the cold junction of thermoelectric generation piece, the hot junction of thermoelectric generation piece with motor housing compresses tightly, so, can make thermoelectric generation module be in the inside and outside temperature difference environment of inlayer high temperature, outer microthermal to the heat with the motor converts the electric energy into.
After thermoelectric generation unit 102 converts heat energy into electric energy, because the elevator operating mode changes frequently, the potential difference size that its produced is also different, and the potential difference changes greatly and changes unstably, in order to utilize this part electric energy, the utility model discloses can also be connected thermoelectric generation unit's output and DC/DC voltage stabilizing unit, convert the voltage of thermoelectric generation unit output into stable voltage through DC/DC voltage stabilizing unit.
The frequency converter 103 includes a three-phase input R, S, T, a three-phase output U, V, W, a positive output P, and a negative output N. The three-phase input end R, S, T of the frequency converter 103 is respectively and electrically connected to the output end of the thermoelectric generation unit 102; the three-phase output terminals U, V, W are electrically connected to the input terminals of the battery 104, respectively.
The inverter 105 is configured to convert the direct current (direct voltage and direct current) output from the battery 104 into alternating current (alternating voltage and alternating current) and output the alternating current to the grid. Preferably, the inverter 105 is an Intelligent Power Module (IPM) using Insulated Gate Bipolar Transistors (IGBTs), i.e., an IPM-IGBT. The power grid can be 220V single-phase alternating current or 380V three-phase alternating current.
The utility model can also comprise a rectifying and filtering unit, wherein the input end of the rectifying and filtering unit is connected with the output end of the frequency converter 103, and the output end is connected with the input end of the storage battery 104; and is configured to rectify and filter the direct current output by the frequency converter 103 and output the rectified and filtered direct current to the storage battery 104.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
1. An elevator energy saving device, comprising:
the temperature difference power generation device comprises a motor, a temperature difference power generation unit, a frequency converter, a storage battery, an inverter and a controller, wherein the temperature difference power generation unit is attached to the motor, the output end of the temperature difference power generation unit is connected with the input end of the frequency converter, the output end of the frequency converter is connected with the input end of the storage battery, the output end of the storage battery is connected with the input end of the inverter, and the communication end of the inverter is connected with the control end of the controller;
the motor is used for driving the elevator car to move;
the temperature difference power generation unit is used for converting heat generated by the rotation of the motor into electric energy;
the frequency converter is used for converting the electric energy generated by the temperature difference power generation unit into direct current;
the storage battery is used for storing the direct current output by the frequency converter;
the controller is used for identifying the phase sequence, the phase, the voltage instantaneous value and the current instantaneous value of the power grid, controlling the inverter to convert the direct current output by the frequency converter into alternating current with the same frequency and phase as the power grid according to the identified phase sequence, the phase, the voltage instantaneous value and the current instantaneous value of the power grid, and outputting the alternating current to the power grid.
2. The elevator economizer of claim 1 wherein the thermoelectric generation unit comprises a thermoelectric generation module comprising thermoelectric generation fins, cooling fins and a silicone layer for bonding the cooling fins to the cold ends of the thermoelectric generation fins.
3. The elevator energy saving device according to claim 2, wherein the thermoelectric generation module is plural.
4. The elevator energy-saving device according to claim 1, further comprising a rectifying and filtering unit, wherein one end of the rectifying and filtering unit is connected with the output end of the frequency converter, and the other end of the rectifying and filtering unit is connected with the input end of the storage battery; and the direct current output by the frequency converter is rectified and filtered and then is output to the storage battery.
5. The elevator energy saving device according to claim 1, wherein the controller controls the inverter to convert the dc power output from the battery into ac power having the same frequency and phase as a 220V single-phase ac power grid.
6. The elevator energy saving device according to claim 1, wherein the controller controls the inverter to convert the dc power output from the battery into ac power having the same frequency and phase as a 380V three-phase ac power grid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922334665 | 2019-12-24 | ||
| CN2019223346657 | 2019-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212343338U true CN212343338U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020322937.1U Active CN212343338U (en) | 2019-12-24 | 2020-03-16 | Elevator energy-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212343338U (en) |
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2020
- 2020-03-16 CN CN202020322937.1U patent/CN212343338U/en active Active
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