CN202321891U - Energy-saving type driving and energy converting device of elevator - Google Patents
Energy-saving type driving and energy converting device of elevator Download PDFInfo
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- CN202321891U CN202321891U CN2011203989703U CN201120398970U CN202321891U CN 202321891 U CN202321891 U CN 202321891U CN 2011203989703 U CN2011203989703 U CN 2011203989703U CN 201120398970 U CN201120398970 U CN 201120398970U CN 202321891 U CN202321891 U CN 202321891U
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Abstract
The utility model discloses an energy-saving type driving and energy converting device of an elevator for balanced power consumption of the elevator and solves the problems that the elevator cannot operate under the condition that a traditional commercial power supply stops supplying and the power supply contradiction is intensified when the elevator operates during power peak and the like. The energy-saving type driving and energy converting device is technically characterized in that a solar power supply is connected with the input end of a direct current battery pack in parallel; the output end of the direct current battery pack is connected with a motor of a traction machine through a direct current bus and a rectifier inverting unit; an IGBT (Insulated Gate Bipolar Transistor) module as a control switch is assembled at the bottom of a casing and is attached to a heat radiating fin; a speed regulating fan for controlling the work temperature of the IGBT module is arranged on the lateral surface of the heat radiating fin; and control panels of various units of a control circuit are sequentially arranged in a laminating way. The energy-saving type driving and energy converting device is reasonable in design, compact in structure, timely in energy conversion of the power supply and is reasonable in power matching; and according to the energy-saving type driving and energy converting device, the relationship between a power load for an elevator driving device and a power wave crest for a power system as well as the relationship between the power load for the elevator driving device and a power wave trough for the power system are effectively adjusted, energy loss caused by converting direct current into alternating current is reduced and the aims of saving energy and increasing the operation efficiency of the elevator are achieved.
Description
Technical field
The utility model relates to a kind of control setup that is used for the balanced electricity consumption of elevator; Particularly a kind of dc-battery group of utilizing is directly charged to the dc bus of drive system, the energy-saving elevator drive and the energy conversion device that concern between adjustment drive unit for lift power load and electric system electricity consumption crest, the trough.Belong to manned, loading jacking equipment technical field.
Background technology
Existing elevator devices etc. are manned, the loading jacking equipment; General mainly constitute by car, counterweight, towing machine and actuating device etc.; Towing machine connects lift car and counterweight through traction with steel rope, and the weight of counterweight is about the 40-60% of the deadweight of car together with payload ratings usually.The towing machine of elevator adopts the type of drive of frequency control mostly, directly supplies with frequency converter by mains supply, after frequency converter conversion modulation, supplies with towing machine again.Elevator device mainly contains two kinds of mode of operations, first power consumption state: the cage side weight of elevator is during greater than the counterweight amount of stressing, and lift car is operation upwards; The cage side weight of elevator is during less than the counterweight amount of stressing, and lift car is two kinds of operating modes of operation downwards.It two is generating states: the cage side weight of elevator is during greater than the counterweight amount of stressing, and lift car moves downwards; The cage side weight of elevator is less than the counterweight amount of stressing, and lift car is two kinds of operating modes of operation upwards, the potential energy acting, and elevator is in generating state.
When elevator was in generating state, common way was that the electric energy that towing machine sends is fed back on the dc bus of frequency converter.At this moment, with the rising that causes DC bus-bar voltage, when direct current bus bar pressure value is higher than given threshold value, electric energy is drawn from the dc bus again and change the industrial frequency AC civil power into through inversion and feed back to electrical network.Therefore, the voltage of inverse transformation, frequency, and parameter request such as phase place higher, otherwise will become the quality that influences civil power.Common way also has: with the heating used up method of this electric energy that sends through braking resistor, this method is not suitable for current energy-saving and emission-reduction requirement; The direct current emergency source of electrical power of low capacity is set; Its significant feature is when mains supply takes place to have a power failure; DC power system in support provides elevator to stop nearby; Open elevator door, accomplish overcoming difficulties of personnel etc., but the direct current emergency source of electrical power of this low capacity can't provide the needed electric energy of normal operation of elevator device.Can under the situation that mains supply stops supplying, move if want to guarantee elevator, can only adopt the independently many groups of increase emergency source of electrical power to supply power simultaneously, but and the method switched of fast speed, eliminate the elevator that temporary transient a certain road power supply stops supplying to cause and stop transport.
Like publication number is that " the alternating-current electrical lift supply unit " of CN1425214A adopts Ni-MH battery as energy storing device; Utilize the dc bus link charging of supply unit; Electric energy when failing to use electric wave paddy effectively utilizes, and can not use this clean energy resource of solar power; Publication number be CN1835329A's " a kind of elevator is with mixing energy storage equipment and control method thereof " adopted super capacitor and storage battery; Charge power supply is utilized electric network source or dc bus link; Electric energy when failing effectively to utilize electric wave paddy can not use this clean energy resource of solar power; Publication number is that CN101262139A " solar conversion control device for elevator " has utilized solar power, but the electric energy can not be with electricity consumption at night trough the time rationally uses electricity consumption on the daytime crest period.
Because jacking equipments such as current elevator often adopt mains supply after (frequency converter) rectification, (pulsewidth) modulation, are used for towing machine is supplied power.When elevator device was in generating state, this system also can feed back to network system with the electric energy that motor produced of towing machine; When the mains supply for elevator device power supply had a power failure, elevator device generally can't carry out work again under the situation of backup power not having.Simultaneously, usually the main time of run of elevator device by day, also be the peak time of electricity consumption daytime usually, elevator device is as one of consumer main in the civil construction.When arrived night, the frequency of utilization of elevator also reduced until quitting work, and also be the trough phase of network system this moment.Therefore, during peak of power consumption elevator be used in the contradiction of also having aggravated electric power supply in a way.
The utility model content
The purpose of the utility model provides a kind of energy-saving elevator drive and energy conversion device that is used for the balanced electricity consumption of elevator; It has solved when elevator can't move with peak of power consumption under the situation that existing mains supply stops supplying problems such as operation elevator aggravation electric power supply contradiction; It is reasonable in design, compact conformation, and the power supply energy conversion is in time; The electricity consumption coupling rationally; Adjusted the relation between drive unit for lift power load and electric system electricity consumption crest, the trough effectively, reduced, reached purpose energy-conservation and raising elevator operating efficiency because of DC converting becomes to exchange the degradation of energy that causes.
The technical scheme that the utility model adopted is: this energy-saving elevator drive and energy conversion device comprise the commutation inversion unit that is connected with mains supply, dc-battery group, towing machine and the electric energy that towing machine sends are fed back to the dc bus of dc-battery group; And charge and discharge control loop; Its technical essential is: the power supply that is parallel with sun-generated electric power or non-civil power at the input end of said dc-battery group; The mouth of dc-battery group is connected with the motor of towing machine through dc bus and commutation inversion unit; Be contained in the bottom of housing as the IGBT module groups of master cock; Be close to radiating gill, and the speed-regulating fan of control IGBT module operating temperature be set in the radiating gill side; The main control unit of control loop, charhing unit, the control desk of converting unit and commutation inversion unit adopts overlapped way to place in proper order automatically, charhing unit overlay automatic converting unit directly over; Main control unit overlays directly over the commutation inversion unit; Main control unit is connected through flat cable with the port of commutation inversion unit, and charhing unit and automatic converting unit are through transmission drive signal of the flat cable between the port and power supply signal, and main control unit utilizes flat cable to be connected to charhing unit; And the port of dc bus through automatic converting unit is connected with rigid line with the port of commutation inversion unit, as a passage of the electric energy of the normal operation of elevator of when mains supply can't satisfy the demands, giving security rapidly of major loop.
In the said master cock of D1, D2, D3, D4, D5, D6, D7, D8 and the D9 that is made up of the IGBT module, D1, D4 are as being the electrically-charged master cock of dc-battery group from dc bus; The master cock that D2, D3 discharge as the dc-battery group; D5 is as the resistance braking master cock; D6, D7 are as the conducting or the isolation control switch of mains supply; D8, D9 are as utilizing solar power to be the electrically-charged master cock of dc-battery group.
Advantage and the good effect that the utlity model has are: because the input end of the dc-battery group of the utility model is parallel with the power supply of sun-generated electric power or non-civil power; The mouth of dc-battery group is connected with the motor of towing machine through dc bus and commutation inversion unit; As the IGBT module groups of master cock, be assembled in the bottom of housing, be close to radiating gill; And the speed-regulating fan of control IGBT module operating temperature is set in the radiating gill side; The control desk of the main control unit of control loop, charhing unit, automatic converting unit and commutation inversion unit adopts overlapped way to place in proper order, so it is reasonable in design, and compact conformation.Adopt the master cock of insulated gate formula bipolar transistor (IGBT) module formation because of this energy conversion device; Control through automatic converting unit, in conjunction with trough energy accumulating technique, solar energy generation technology, so the power supply energy conversion in time; The electricity consumption coupling rationally; Adjust the relation between drive unit for lift power load and electric system electricity consumption crest, the trough effectively, and can make full use of solar power, reached purpose energy-conservation and raising elevator operating efficiency.Therefore, it has solved when elevator can't move with peak of power consumption under the situation that existing mains supply stops supplying problems such as operation elevator aggravation electric power supply contradiction.
Its principle of work is: because the existence of dc-battery group; The electric energy storage and the buffering of carrying out to input; Adjusted the relation between elevator device power load and electric system electricity consumption crest, the trough; With originally having transferred to the trough electricity consumption at the crest of electric system electricity consumption, be equivalent to practice thrift the energy, promoted energy-saving and emission-reduction; Simultaneously also can introduce sun-generated electric power (solar panel or other non-mains supply) in said system supplies power to drive unit for lift; Because the sun-generated electric power directly direct current (DC) of output can be used for the dc bus of actuating device is supplied power; When it has the more electric energy surplus, also can be used for charging to the dc-battery group.Moreover, owing to introduced the power supply of dc-battery group, and no longer be the driving power of meeting an urgent need as elevator drive, the minimizing elevator of limit that can be maximum since mains supply have a power failure cause stop ladder close the people can not operation problem.In addition; The dc-battery group can be directly charged to the dc bus of drive system; No longer carry out conversion; Reduced part because DC converting becomes to exchange the degradation of energy that causes, and the charging of dc-battery group is when electric system is in trough, to carry out electrically-chargedly, the degradation of energy that causes of its conversion can think energy-conservation with comparing in the crest electricity consumption.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the decomposing schematic representation of a kind of concrete structure of the utility model.
Fig. 2 is that the utility model adopts the schematic diagram when battery-powered.
Schematic diagram when Fig. 3 is the utility model employing mains-supplied.
Fig. 4 is the electric control theory figure of a kind of automatic switching circuit of the utility model.
Sequence number explanation among the figure: 1 main control unit (IC1), 2 charhing units (IC2), 3 automatic converting units, 4 commutation inversion unit (AC/DC), 5 master cocies (D1～D9), 6 radiating gills, 7 fans, E1, E2 ... The motor of En dc-battery group, DC+/DC-dc bus, M towing machine.
The specific embodiment
Specify the concrete structure of the utility model according to Fig. 1～4.This energy-saving elevator drive and energy conversion device comprise the AC/DC commutation inversion unit 4 that is connected with mains supply; With commutation inversion unit 4 selectivity bonded assembly dc-battery group E1, E2 ... En; Towing machine and the electric energy that towing machine sends fed back to the dc bus of dc-battery group and charge and discharge control loop.Wherein at the power supply of common selectable parallelly connected sun-generated electric power of the input end of dc-battery group or other non-civil power; The mouth of dc-battery group connects dc bus DC+/DC-and commutation inversion unit 4; The mouth of commutation inversion unit 4 is connected with the motor M of towing machine, is used for motor M is supplied power.Control loop wherein
IC1 main control unit 1 mainly is the control core with CPU1, and its peripheral circuit comprises the voltage detecting circuit of dc bus and communicating circuit that output control circuit, working state of system display circuit, serial data are uploaded and keyboard circuit etc.
Automatically formations such as the grouping commutation circuit that mainly constitutes as master cock 5 of converting unit 3 and output short circuit protection circuit by charge circuit, discharge circuit, battery voltage testing circuit, by D1～D9 (IGBT module).
Commutation inversion unit 4 comprises formations such as driving buffer circuit, rectifying circuit, inverter circuit, power supply circuit, the whole circuit of fan wind velocity modulation, load current detection circuit.
The control desk of the IC1 main control unit 1 in the above-mentioned control loop, IC2 charhing unit 2, automatic converting unit 3 and commutation inversion unit 4 adopts overlapped way to place in proper order, therefore, and compact overall structure.Problems such as taking up room that the circuit card that it has solved existing control loop adopts that separate structure brought be big, need to connect the certain-length cable, difficult in maintenance.The order that it adopts overlapped way to place: IC2 charhing unit 2 overlays directly over the automatic converting unit 3; IC1 main control unit 1 overlays directly over the commutation inversion unit 4.Two unit of IC1 and IC2 can carry out monolateral rotating freely respectively, when each element circuit damages, can replace broken parts, convenient for maintaining at any time.Be contained in the bottom of housing as the high-power IGBT module groups of master cock 5, be close to radiating gill 6, and speed adjustable fan 7 be set, control IGBT module operating temperature in the side of radiating gill 6.Only connect with extremely short winding displacement between each control unit and get final product: promptly the port x 40 of IC1 main control unit 1 is connected to the port x 19 of commutation inversion unit 4 through 14 pin flat cables, and port x 50 is connected to the port x 20 of commutation inversion unit 4 through 20 pin flat cables.The port x 31 of IC1 main control unit 1 is connected to the port x 10 of IC2 charhing unit 2 through 50 pin flat cables, and to communication signal between the two, real-time exchange information is monitored total system, heightens efficient.Is connected by one 20 pin flat cable between the port of the port x 7 of IC2 charhing unit 2 and automatic converting unit 3, transmits drive signal and power supply signal.And the port x 5 of dc bus DC+/DC-through automatic converting unit 3 is connected with rigid line with X2 with the port x 1 of commutation inversion unit 4 with X6; As a passage of major loop,, mains supply provide electric energy to guarantee the normal operation of elevator to system when can't satisfying the demands rapidly.
Wherein the output control circuit of IC1 all through isolating the output of optocoupler drive controlling commutation inversion unit 4, makes the towing machine even load obtain the better controlling waveform.Voltage detecting circuit can cut off output circuit rapidly through detecting the output voltage of commutation inversion unit 4 in real time under abnormal condition, quit work, and prevents dangerous the generation.Keyboard circuit and display circuit mainly are that parameters such as the electric current and voltage of each unit of system and frequency are provided with or monitor.Also comprise parameters such as system operation time, failure record and system information in addition.
Commutation inversion unit 4 is power cells of total system, when accomplishing basic rectification, invert function, the electric power loop of total system is provided.Buffer circuit is isolated high pressure and low-pressure section fully, burns total system when avoiding circuit abnormality.The alignment circuit of load detecting circuit and fan 7 cooperatively interacts, during underloading, and fan 7 low cruises, during heavy duty, fan 7 high-speed cruising, protection core component IGBT works the safety of protection system in normal range of temperatures.
The D1, D2, D3, D4, D5, D6, D7, D8 and the D9 that adopt insulated gate formula bipolar transistor (IGBT) module formation in the present embodiment respectively are as master cock 5.Wherein D1, D4 conduct are the electrically-charged master cock of dc-battery group from dc bus; The master cock that D2, D3 discharge as the dc-battery group; D5 is as the resistance braking master cock; D6, D7 are as the conducting or the isolation control switch of mains supply; D8, D9 are as utilizing sun-generated electric power to be the electrically-charged master cock of dc-battery group.
When adopting mains powered, can for elevator power supply be provided with the mains supply access through the IC1 main control unit 1 control D6 that has cpu central processing unit, the conducting of D7; IC1 main control unit 1 is controlled ending of D6, D7 when power failure taking place or adopt the power supply of dc-battery group, and mains supply is isolated; Be in low power consumption when night, and IC1 main control unit 1 is when detecting elevator and being in readiness for action (unmanned use elevator), control D1, D4 conducting, D2, D3 turn-off, and mains supply capable of using is dc-battery group E1, E2 ... The En charging; Also can be in generating state at motor in the same way, make when voltage is higher than threshold values between the dc bus, unlatching D1, D4 are the charging of dc-battery group; System detects dc-battery group voltage when low when daytime; Also can use sun-generated electric power to charge as the dc-battery group; IC1 main control unit 1 turn-offs through control D1, D2, D3, D4, and when IC2 charhing unit 2 control D8, D9 conducting, sun-generated electric power capable of using or other non-mains supply are the charging of dc-battery group; Adopt dual port RAM to carry out real-time communication, exchange system information between IC1 and the IC2; When be in peak of power consumption daytime; Electric energy stored drives elevator in the dc-battery group capable of using, and by IC1 main control unit 1 control D2, D3 conducting, D1, D4 turn-off; Discharge dc-battery group E1, E2 ... The electric energy that En stores is used to drive the elevator operation, thereby plays the purpose of balanced electricity consumption.Dc-battery group E1, E2 ... The charging of En, discharge process can be controlled respectively, also can control simultaneously.
Embodiment:
The commutation inversion unit 4 that is connected with mains supply is used for accomplishing electric main is carried out rectification, and becoming can be to dc-battery group and DC bus powered direct current (DC); With commutation inversion unit 4 selectivity bonded assembly dc-battery group E1, E2 ... En accomplishes the charging to the dc-battery group with the direct current (DC) after the rectification; Commutation inversion unit 4 comprises dc bus and rectifying circuit, inverter circuit, and the direct current (DC) after the rectification is accomplished the charging to dc bus; In the selectable usually power supply input that is parallel with sun-generated electric power or other non-civil power of the input end of dc-battery group; The power supply of non-civil power is imported direct supply normally or other source of AC through being transformed into direct supply and being higher than the output voltage of dc-battery group, the dc-battery group is charged guaranteeing.The output of dc-battery group connects and comprises dc bus and commutation inversion unit 4; The output of this unit is connected with the motor M of towing machine; Be used for to motor M power supply, when elevator device was in generating state, the electric energy that is sent by motor M also can feed back to through inverter circuit DC bus-bar voltage is raise; When the magnitude of voltage on the dc bus was higher than defined threshold, dc bus oppositely charged to the dc-battery group.Conversion between each power supply can be through the IGBT module groups conducting or end and control.
Its principle of work is: IC1 main control unit 1 is in the trough time (like evening) of electricity consumption when elevator through the internal system time clock circuit judges; Through control D1, D4 conducting; With civil power change into direct current (DC) be stored in dc-battery group E1, E2 ... Among the En; Simultaneously, also its electric energy that sends is directly supplied in the dc-battery group through D1, D4 on by dc bus under the generating state when elevator moves, be used for charging to the dc-battery group.When elevator is worked, directly to supply power to towing machine with the dc-battery group, towing machine can adopt brush DC towing machine or permanent magnetic synchronous traction machine; When adopting the brush DC towing machine, the dc-battery group is DC bus powered to frequency converter (controller) directly, when dc bus is higher than defined threshold (towing machine is in generating state); This moment, dc bus charged reverse dc-battery group; In the dc-battery group, the electric power that this moment, elevator was equivalent to adopt self dc-battery group to store is accomplished the driving of elevator with unnecessary electrical power storage, and extraneous civil power has only when the power shortage in the battery pack of elevator; Just this electric power is introduced in the elevator drive system; Bide one's time like the peak times of power consumption that are in electric system this moment, and the preferential electricity consumption needs that satisfy elevator drive are then preferentially accomplished the batteries charging to elevator at this moment when the electricity consumption of electric system is in trough; Because the existence of the dc-battery group of elevator; To storage and the buffering that the electric energy of importing carries out, adjusted the relation between elevator device power load and the electric system electricity consumption Wave crest and wave trough, with originally having transferred to the trough electricity consumption in the crest electricity consumption of electric system electricity consumption; Be equivalent to practice thrift the energy, promoted energy-saving and emission-reduction; Simultaneously also can utilize the energy of sun-generated electric power that elevator drive system is supplied power through automatic converting unit at this device; The direct current (DC) of directly exporting through automatic converting unit can be used for the dc bus that drives towing machine is supplied power; When it has the more electric energy surplus, also can be used for charging to elevator dc-battery group.Moreover, owing to introduced the power-supply system of dc-battery group, and no longer be the power supply of the driving of meeting an urgent need as elevator drive, the minimizing elevator of limit that can be maximum since mains failure cause stop ladder close the people can not operation problem.In addition; The dc-battery group can directly be charged to the dc bus of drive system through the passage that automatic converting unit provides; No longer carry out conversion; Reduced part because DC converting becomes to exchange the degradation of energy that causes, and the charging of dc-battery group be when electric system is in trough, carry out electrically-charged.
Its working process is following:
1, adopt electric main that dc-battery group E1 is charged; When operating in the electric energy that generating state following time produced, elevator also dc-battery group E1 is charged simultaneously by dc bus; The dc-battery group E2 that is full of electricity simultaneously is used for supplying direct current (DC) to dc bus and other annex that towing machine drives; Be used for driving elevator operation, when dc-battery group E2 power consumption stops, the power supply of towing machine switched to dc-battery group E1; Operate in the electric energy that generating state following time produced through mains supply and elevator this moment dc-battery group E2 is charged, so accomplish charge and discharge all dc-battery group En.
2, adopt electric main power supply and sun-generated electric power that dc-battery group E1 is charged; When operating in the electric energy that generating state following time produced, elevator also dc-battery group E1 is charged simultaneously by dc bus; The dc-battery group E2 that is full of electricity simultaneously is used for supplying direct current (DC) to dc bus and other annex of the frequency converter of towing machine; Be used for driving elevator operation, when dc-battery group E2 power consumption stops, the power supply of towing machine switched to dc-battery group E1; Operate in the electric energy that generating state following time produced through sun-generated electric power, mains supply and elevator this moment dc-battery group E2 is charged, so accomplish a circulation.
Claims (2)
1. an energy-saving elevator drive and energy conversion device that is used for the balanced electricity consumption of elevator; Comprise the commutation inversion unit that is connected with mains supply, dc-battery group, towing machine and the electric energy that towing machine sends fed back to the dc bus of dc-battery group; And charge and discharge control loop; It is characterized in that: the power supply that is parallel with sun-generated electric power or non-civil power at the input end of said dc-battery group; The mouth of dc-battery group is connected with the motor of towing machine through dc bus and commutation inversion unit; Be contained in the bottom of housing as the IGBT module groups of master cock, be close to radiating gill, and the speed-regulating fan of control IGBT module operating temperature is set in the radiating gill side; The main control unit of control loop, charhing unit, the control desk of converting unit and commutation inversion unit adopts overlapped way to place in proper order automatically, charhing unit overlay automatic converting unit directly over; Main control unit overlays directly over the commutation inversion unit; Main control unit is connected through flat cable with the port of commutation inversion unit, and charhing unit and automatic converting unit are through transmission drive signal of the flat cable between the port and power supply signal, and main control unit utilizes flat cable to be connected to charhing unit; And the port of dc bus through automatic converting unit is connected with rigid line with the port of commutation inversion unit, as a passage of the electric energy of the normal operation of elevator of when mains supply can't satisfy the demands, giving security rapidly of major loop.
2. energy-saving elevator drive according to claim 1 and energy conversion device; It is characterized in that: in the said master cock of D1, D2, D3, D4, D5, D6, D7, D8 and the D9 that is made up of the IGBT module, D1, D4 are as being the electrically-charged master cock of dc-battery group from dc bus; The master cock that D2, D3 discharge as the dc-battery group; D5 is as the resistance braking master cock; D6, D7 are as the conducting or the isolation control switch of mains supply; D8, D9 are as utilizing solar power to be the electrically-charged master cock of dc-battery group.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203989703U CN202321891U (en) | 2011-10-19 | 2011-10-19 | Energy-saving type driving and energy converting device of elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203989703U CN202321891U (en) | 2011-10-19 | 2011-10-19 | Energy-saving type driving and energy converting device of elevator |
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| CN202321891U true CN202321891U (en) | 2012-07-11 |
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| CN2011203989703U Expired - Fee Related CN202321891U (en) | 2011-10-19 | 2011-10-19 | Energy-saving type driving and energy converting device of elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367143A (en) * | 2011-10-19 | 2012-03-07 | 沈阳博林特电梯股份有限公司 | Energy saving type elevator driving and energy conversion device |
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2011
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367143A (en) * | 2011-10-19 | 2012-03-07 | 沈阳博林特电梯股份有限公司 | Energy saving type elevator driving and energy conversion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENYANG BRILLIANT ELEVATOR GROUP CO., LTD. Free format text: FORMER NAME: SHENYANG BRILLIANT ELEVATOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee after: SHENYANG BRILLIANT ELEVATOR CO., LTD. Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee before: Shenyang Brilliant Elevator Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 110027, No. 27, development road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee after: SHENYANG YUANDA INTELLECTUAL INDUSTRY GROUP CO., LTD. Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee before: SHENYANG BRILLIANT ELEVATOR CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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