CN206569857U - A kind of elevator drive - Google Patents
A kind of elevator drive Download PDFInfo
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- CN206569857U CN206569857U CN201621378550.8U CN201621378550U CN206569857U CN 206569857 U CN206569857 U CN 206569857U CN 201621378550 U CN201621378550 U CN 201621378550U CN 206569857 U CN206569857 U CN 206569857U
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Abstract
The utility model provides a kind of elevator drive, including rectification unit, energy storage filter unit, inversion unit, band-type brake power supply, and controller, rectification unit is connected between AC network and energy storage filter unit, for converting alternating current to direct current, inversion unit is connected between energy storage filter unit and hoisting motor, band-type brake power supply is connected between energy storage filter unit and traction brake, controller connects inversion unit and band-type brake power supply simultaneously, the frequency conversion of controller control inversion unit exports to control the frequency control of hoisting motor and control the voltage output of band-type brake power supply to realize the control for brake to traction brake.The utility model is by the way that band-type brake power supply is integrated into elevator drive, so as to reduce the volume of whole control system, saves cost, reduces wiring.Further, since whole elevator drive uses same controller, auxiliary reclay and contactor link are eliminated compared with prior art, so as to improve the safety and reliability of whole system.
Description
Technical field
The utility model is related to elevator control technology field, more particularly to a kind of elevator traction machine band-type brake power supply of being integrated with
Elevator drive.
Background technology
To realize the reliability service of elevator and stopping, it is necessary to install electromagnetic brake system additional on elevator traction machine.Normally closed type
Contracting brake is in elevator lifting in the state that declutches, and when powering off or arriving at a station, contracting brake makes car stop motion.
Existing apparatus for controlling elevator is mainly made up of elevator drive and band-type brake power supply two parts, and elevator drive is mainly realized to draging
Draw the frequency control of machine, band-type brake power supply mainly realizes the band-type brake control to traction machine brake, to prevent elevator electricity in stopping
There is " car slipping " phenomenon in terraced car.In existing elevator traction machine control system, the band-type brake power supply of traction machine brake is often
It is an independent part, required 110V or 80V direct currents is adjusted into by civil power, then pass through contactor, relay and electricity
Terraced driver realizes electric logic control.Although this apparatus for controlling elevator can realize the control to elevator traction machine,
Component needed for this control structure is more, and control logic is complicated, and failure risk is big, so as to influence elevator safety.This
Outside, also there is the problem of volume is big, cost is high, maintenance difficulty is larger in the control structure of existing elevator traction machine.
Therefore, at present be badly in need of one kind can integrated band-type brake power supply, and safe, small volume, cost it is low elevator driving
Device.
Utility model content
The purpose of this utility model be to provide one kind can integrated band-type brake power supply, and safe, small volume, cost are low
Elevator drive.
In order to solve the above technical problems, utility model uses technical scheme as described below.A kind of elevator drive, including
Rectification unit, energy storage filter unit, inversion unit, band-type brake power supply and controller, the rectification unit be connected to AC network with
Between the energy storage filter unit, for converting alternating current to direct current, the inversion unit is connected to the energy storage filtering
Between unit and hoisting motor, the band-type brake power supply is connected between the energy storage filter unit and traction brake, described
Controller connects the inversion unit and the band-type brake power supply simultaneously, and the controller controls the frequency conversion output of the inversion unit
To control the frequency control of the hoisting motor and the voltage output of the control band-type brake power supply to realize to the traction
The control for brake of brake.
Preferably, the band-type brake power supply includes being sequentially connected the first switch unit connect, tank circuit unit, second switch
Unit and afterflow unit, the band-type brake power supply also include first be connected between the tank circuit unit and the controller
Voltage detection unit, the controller connects the first switch unit and the second switch unit simultaneously, and described second opens
Close unit and the afterflow unit to be electrically connected with the traction brake respectively, the first voltage detection unit is used to detect
The output voltage of the tank circuit unit, the output voltage that the controller is detected according to the first voltage detection unit
The break-make of the first switch unit is controlled to realize the regulation of the output voltage to the band-type brake power supply, the controller control
The break-make of the second switch unit is controlled to realize the control for brake to the traction brake, and the afterflow unit is used to work as
During the traction brake, the energy in the traction brake coil is discharged.
Preferably, the band-type brake power supply also include being used for detecting the second switch unit whether the second abnormal electricity of break-make
Press detection unit, the second voltage detection unit be connected to simultaneously between the second switch unit and the controller and
Between the second switch unit and the afterflow unit.
Preferably, the second voltage detection unit and the first voltage detection unit are negative-feedback proportional integration electricity
Road.
Preferably, the first switch unit is the first metal-oxide-semiconductor, and the drain electrode of first metal-oxide-semiconductor connects the direct current
The positive pole of electricity, the source electrode of first metal-oxide-semiconductor connects the tank circuit unit, and the grid connection of first metal-oxide-semiconductor is described
The output end of controller, the second switch unit is managed for the 2nd MOS, and the drain electrode of second metal-oxide-semiconductor connects the energy storage and returned
Road unit, the source electrode of second metal-oxide-semiconductor connects the afterflow unit, and the grid of second metal-oxide-semiconductor connects the controller
Output end.
Preferably, the tank circuit unit includes the first inductance and the first electric capacity, and one end of first inductance connects
Connect the source electrode of first metal-oxide-semiconductor and the negative electrode of first diode, the other end connection described second of first inductance
The drain electrode of metal-oxide-semiconductor and one end of first electric capacity, the anode of first diode connect negative pole and the institute of the direct current
State the other end of the first electric capacity.
Preferably, the tank circuit unit includes the second inductance and the second electric capacity, and one end of second inductance connects
The source electrode of first metal-oxide-semiconductor and the negative electrode of second diode are connect, the other end of second inductance connects the direct current
The negative pole of electricity and one end of second electric capacity, the anode of second diode connect drain electrode and the institute of second metal-oxide-semiconductor
State the other end of the second electric capacity.
Preferably, the band-type brake power supply also includes overcurrent protection unit, and the overcurrent protection unit is connected to described
Between the positive pole of first switch unit and the direct current.
Preferably, the afterflow unit includes the 3rd diode and first resistor, and the negative electrode of the 3rd diode is connected
The source electrode of second metal-oxide-semiconductor, the anode of the 3rd diode connects one end of the first resistor, the first resistor
The other end connects the negative pole of the direct current.
Preferably, the afterflow unit includes the 4th diode and second resistance, and the anode of the 4th diode is connected
The source electrode of second metal-oxide-semiconductor, the negative electrode of the 4th diode connects one end of the second resistance, the second resistance
The other end connects the negative pole of the direct current.
Advantageous effects of the present utility model are：The elevator drive includes rectification unit, energy storage filter unit, inverse
Become unit, band-type brake power supply and controller, rectification unit is connected between AC network and energy storage filter unit, for that will exchange
Electricity is converted into direct current, and inversion unit is connected between energy storage filter unit and hoisting motor, and band-type brake power supply is connected to energy storage
Between filter unit and traction brake, controller connects inversion unit and band-type brake power supply, controller control inversion unit simultaneously
Frequency conversion export the frequency control to control hoisting motor and control the voltage output of band-type brake power supply to realize to traction system
The control for brake of dynamic device.The utility model is by the way that band-type brake power supply is integrated into elevator drive, so as to reduce whole control system
The volume of system, saves cost, reduces wiring.Further, since whole elevator drive uses same controller, compared to existing skill
Art eliminates auxiliary reclay and contactor link, so as to improve the safety and reliability of whole system.
Brief description of the drawings
Fig. 1 is a kind of structural representation for elevator drive that the utility model is provided；
Fig. 2 is the structural representation of the band-type brake power supply in Fig. 1；
Fig. 3 is a kind of circuit theory diagrams for band-type brake power supply that the utility model is provided；
Fig. 4 is the circuit theory diagrams for another band-type brake power supply that the utility model is provided.
Embodiment
To make one of ordinary skill in the art be more clearly understood from the purpose, technical scheme and advantage of utility model,
Utility model is further elaborated below in conjunction with drawings and examples.
Referring to figs. 1 to Fig. 4, the elevator drive 1 is connected to AC network and hoisting motor 100 and traction brake
Between 200, for the electric energy for converting alternating current to be available for hoisting motor 100 and traction brake 200 to use and it can control
The frequency conversion of hoisting motor 100 processed and the braking of traction brake 200.
The elevator drive 1 includes rectification unit 10, energy storage filter unit 20, inversion unit 30, band-type brake power supply 40 and control
Device 50 processed.Rectification unit 10 is connected between AC network and energy storage filter unit 20, for converting alternating current to direct current；
Inversion unit 30 is connected between energy storage filter unit 20 and hoisting motor 100；It is single that band-type brake power supply 40 is connected to energy storage filtering
Between member 20 and traction brake 200；Controller 50 connects inversion unit 30 and band-type brake power supply 40 simultaneously, and controller 50 controls inverse
The frequency conversion for becoming unit 30 exports to control the voltage output of the frequency conversion of hoisting motor 100 and control band-type brake power supply 40 to realize
To the control for brake of traction brake 200.
Wherein, rectification unit 10 is used for the convert alternating current for the three-phase alternating current RST such as 380V that will be accessed from AC network
Into direct current.Energy storage filter unit 20 is used to carry out voltage stabilizing to the direct current being converted into.Controller 50 sends control instruction and adopted
With the work combination of switching tube in vector controlled or V/F control algolithms adjustment inversion unit 30 so as to complete direct current to traction
The VFC of motor 100.In addition, rectification unit 10 and energy storage filter unit 20 can be using conventional three-phase bridge all-waves
Current rectifying and wave filtering circuit.Inversion unit 30 can select conventional bridge inverter main circuit.Due to rectification unit 10, energy storage filter unit
20 and inversion unit 30 use existing circuit structure, and those skilled in the art will appreciate that and decorrelation technique, therefore
Here is omitted.In addition, band-type brake power supply 40 is used to provide power supply, the control band-type brake power supply of controller 50 for traction brake 200
40 to adjust the output voltage of band-type brake power supply 40 so as to controlling the braking of traction brake 200.
The elevator drive 1 includes rectification unit 10, energy storage filter unit 20, inversion unit 30, band-type brake power supply 40 and control
Device 50 processed, rectification unit 10 is connected between AC network and energy storage filter unit 20, for converting alternating current to direct current,
Inversion unit 30 is connected between energy storage filter unit 20 and hoisting motor 100, and it is single that band-type brake power supply 40 is connected to energy storage filtering
Between member 20 and traction brake 200, controller 50 connects inversion unit 30 and band-type brake power supply 40 simultaneously, and controller 50 controls inverse
Become unit 30 frequency conversion export the voltage output of frequency control to control hoisting motor 100 and control band-type brake power supply 40 with
Realize that the braking to traction brake 200 is braked.The utility model by the way that band-type brake power supply 40 is integrated into elevator drive 1,
So as to reduce the volume of whole control system, cost is saved, wiring is reduced.Further, since the whole use of elevator drive 1 is same
Individual controller 50, eliminates auxiliary reclay and contactor link compared with prior art, so as to improve the safety of whole system
Property and reliability.
Preferably, band-type brake power supply 40 includes being sequentially connected the first switch unit 41 connect, tank circuit unit 42, second
Switch element 44 and afterflow unit 45.Band-type brake power supply 40 also includes being connected between tank circuit unit 42 and controller 50
First voltage detection unit 43.Controller 50 connects first switch unit 41 and second switch unit 44 simultaneously.Second switch list
Member 44 and afterflow unit 45 are electrically connected with traction brake 200 respectively.First voltage detection unit 43 is used to detect that energy storage is returned
The output voltage of road unit 42, the output voltage control first switch that controller 50 is detected according to first voltage detection unit 43
The break-make of unit 41 is to realize the regulation of the output voltage to band-type brake power supply 40, and controller 50 is by controlling second switch unit 44
Break-make to realize the control for brake to traction brake 200.Afterflow unit 45 is used for when traction 200 band-type brake of brake, releases
Put the energy in the coil of traction brake 200.
Specifically, in the utility model embodiment, band-type brake power supply 40 is connected across the direct current after energy storage filter unit 20
Electricity both positive and negative polarity between, 40 pairs of direct currents of band-type brake power supply be adjusted be converted into the voltage needed for traction brake 200 from
And realize the control for brake to traction brake 200.
Band-type brake power supply 40 includes first switch unit 41 and second switch unit 44, and positioned at the He of first switch unit 41
Tank circuit unit 42 between second switch unit 44.First voltage detection unit 43 is used to detect tank circuit unit 42
Output voltage, and the output voltage is fed back into controller 50 so that controller 50 is detected according to first voltage detection unit 43
Output voltage control first switch unit 41 break-make so as to realizing the regulation of output voltage to band-type brake power supply 40.Second opens
Close unit 44 to be serially connected in after first switch unit 41, output voltage is controlled whether by receiving the control instruction of controller 50
To traction brake 200.By the setting of first switch unit 41 and second switch unit 44, it is possible to achieve independent by two
Electric device is to cut off the electric current of brake to meet elevator safety specification.
Preferably, band-type brake power supply 40 also includes being used to detect second switch unit 44 whether examine by the abnormal second voltage of break-make
Unit 46 is surveyed, second voltage detection unit 46 is connected between second switch unit 44 and controller 50 and second switch simultaneously
Between unit 44 and afterflow unit 45.
Specifically,, should in the utility model embodiment in order to further improve the security control of the elevator drive 1
Band-type brake power supply 40 also include being used for detecting second switch unit 44 whether the abnormal second voltage detection unit 46 of break-make, second electricity
Pressure detection unit 46 is connected between second switch unit 44 and controller 50 and second switch unit 44 and afterflow unit 45
Between.The second voltage detection unit 46 leads to the Voltage Feedback of detection to controller 50 so as to realize to second switch unit 44
The detection of disconnected state.
Preferably, second voltage detection unit 46 and first voltage detection unit 43 are negative-feedback proportional integral circuit.
Specifically, in the utility model embodiment, first voltage detection unit 43 and second voltage detection unit 46 are equal
For negative-feedback proportional integral circuit.
Preferably, first switch unit 41 is the first metal-oxide-semiconductor VT1, and the first metal-oxide-semiconductor VT1 drain D connects direct current
Positive pole, the first metal-oxide-semiconductor VT1 source S connection tank circuit unit 42, the first metal-oxide-semiconductor VT1 grid G connection controller 50
Output end, second switch unit 44 connects tank circuit unit 42 for the second metal-oxide-semiconductor VT2, the second metal-oxide-semiconductor VT2 drain D, the
Two MOS pipes VT2 source S connection afterflow unit 45, the second metal-oxide-semiconductor VT2 grid G connects the output end of controller 50.
Specifically, in the utility model embodiment, first switch unit 41 is the first metal-oxide-semiconductor VT1.First metal-oxide-semiconductor
VT1 drain D connects the positive pole of direct current, the first metal-oxide-semiconductor VT1 source S connection tank circuit unit 42, the first metal-oxide-semiconductor
VT1 grid G connects the output end of controller 50, and the grid G to the first metal-oxide-semiconductor VT1 is instructed by the output control of controller 50
Control to be supplied to the output voltage of traction brake 200 to adjust the first metal-oxide-semiconductor VT1 break-make ratio (dutycycle).Reference
Fig. 3, in the utility model embodiment, U is set to by direct currentin, it is U by output voltage settingout, by the first metal-oxide-semiconductor VT1
Dutycycle be set to D, then output voltage Uout=Uin× D, can be by controlling the first metal-oxide-semiconductor VT1 break-make ratio D to adjust
Output voltage UoutSize.Wherein, tank circuit unit 42 is used to adjust and stablize output voltage Uout。
In the utility model embodiment, second switch unit 44 is the second metal-oxide-semiconductor VT2.2nd MOS pipes VT2 drain electrode
D connection tank circuits unit 42, the second metal-oxide-semiconductor VT2 source S connection afterflow unit 45, the second metal-oxide-semiconductor VT2 grid G connection
The output end of controller 50, instructs the grid G to the second metal-oxide-semiconductor VT2 to adjust the 2nd MOS by the output control of controller 50
Pipe VT2 break-make is controlled whether output voltage UoutIt is supplied to traction brake 200.
It is to be appreciated that first switch unit 41 and second switch unit 44 do not limit to this, such as first switch unit 41
Can also be IGBT etc. with second switch unit 44, and first switch unit 41 and second switch unit 44 can be identity unit
It can also be different components, be not construed as limiting herein.
Reference picture 3, tank circuit unit 42 includes the first inductance L1, the first diode D1 and the first electric capacity C1, and first
Inductance L1 one end connects the first metal-oxide-semiconductor VT1 source S and the first diode D1 negative electrode, and the first inductance L1 other end connects
Connect the second metal-oxide-semiconductor VT2 drain D and the first electric capacity C1 one end, the first diode D1 anode connection direct current UinNegative pole
With the first electric capacity C1 other end.
Specifically, in the utility model embodiment, direct current UinBy 41 couple of first inductance L1 of first switch unit and
Traction brake 200 is powered, and the first inductance L1 is charged simultaneously.Equivalent to one constant-current source of first inductance L1, plays transmission energy
Amount acts on the first electric capacity C1 equivalent to constant pressure source, plays a part of filtering in circuit.The energy stored in first inductance L1 can
Continue to power by the first diode D1 formation loops and to traction brake 200, so as to ensure that traction brake 200 is obtained
Continuous electric current.
Reference picture 4, in some other feasible embodiments, tank circuit unit 42 may include the second inductance L2, second
Diode D2 and the second electric capacity C2, and the second inductance L2 the first metal-oxide-semiconductor VT1 of one end connection source S and the second diode
D2 negative electrode, the second inductance L2 other end connection direct current UinNegative pole and the second electric capacity C2 one end, the second diode D2
Anode connect the second metal-oxide-semiconductor VT2 drain D and the second electric capacity C2 the other end.
By this set, due to the second diode D2 reversal connections, direct current UinBy electric current after first switch unit 41
Traction brake 200, direct current U can not be flowed toinPowered for the second inductance L2 and the second inductance L2 is charged.Second inductance L2 fills
Electricity discharges electric energy to be supplied to traction brake 200 so as to real by the loop being made up of the second electric capacity C2, the second diode D2
Now powered for traction brake 200.
It should be noted that being supplied to the output voltage U of traction brake 200 in Fig. 3outWith direct current UinDirection is identical,
The output voltage U of traction brake 200 is supplied in Fig. 4outWith direct current UinIn the opposite direction.
Preferably, band-type brake power supply 40 also includes overcurrent protection unit 47, and overcurrent protection unit 47 is connected to the first MOS
Pipe VT1 drain D and direct current UinPositive pole between.
In order to heighten the overcurrent protection of the elevator drive 1, in the utility model embodiment, in band-type brake power supply 40 also
Including overcurrent protection unit 47, and the overcurrent protection unit 47 is connected to the first MOS pipes VT1 drain D and direct current Uin
Positive pole between.It is preferred that the overcurrent protection unit 47 is fusible link.When electric current is excessive, the heat that the resistance of fusible link is produced becomes
Greatly, fusible link fuses after temperature exceedes predetermined threshold value, and then protection circuit.
Referring again to Fig. 3, afterflow unit 45 includes the 3rd diode D3 and first resistor R1, the 3rd diode D3 negative electrode
The second metal-oxide-semiconductor VT2 source S is connected, the 3rd diode D3 anode connects first resistor R1 one end, and first resistor R1's is another
One end connection direct current UinNegative pole.
Specifically, as the output voltage U of band-type brake power supply 40outIt is supplied to after traction brake 200, traction brake 200 is moved
Make carry out brake sticking brake.In order to discharge the energy of the coil of traction brake 200 in time, traction can be discharged by afterflow unit 45
The energy of the coil of brake 200.In the utility model embodiment, afterflow unit 45 is included into the 3rd diode D3 and first
Resistance R1, the 3rd diode D3 negative electrode connect the second metal-oxide-semiconductor VT2 source S, the 3rd diode D3 electricity of anode connection first
Hinder R1 one end, first resistor R1 other end connection direct current UinNegative pole.When traction 200 brake sticking brake of brake, drag
Draw the energy in brake 200 by first resistor R1 and the 3rd diode D3 formation loops to realize instant-free energy.
Referring again to Fig. 4, afterflow unit 45 includes the 4th diode D4 and second resistance R2, the 4th diode D4 anode
The second metal-oxide-semiconductor VT2 source S is connected, the 4th diode D4 negative electrode connects second resistance R2 one end, and second resistance R2's is another
One end connection direct current UinNegative pole.
Specifically, as the output voltage U of band-type brake power supply 40outIt is supplied to after traction brake 200, traction brake 200 is moved
Make carry out brake sticking brake.In order to discharge the energy of the coil of traction brake 200 in time, traction can be discharged by afterflow unit 45
The energy of the coil of brake 200.In the utility model embodiment, afterflow unit 45 is included into the 4th diode D4 and second
Resistance R2, the 4th diode D4 anode connect the second metal-oxide-semiconductor VT2 source S, the 4th diode D4 electricity of negative electrode connection second
Hinder R2 one end, second resistance R2 other end connection direct current UinNegative pole.When traction 200 brake sticking brake of brake, drag
Draw the energy in brake 200 by second resistance R2 and the 4th diode D4 formation loops to realize instant-free energy.
The preferred embodiment of utility model is the foregoing is only, rather than any formal limitation is done to utility model.This
The technical staff in field can impose various equivalent changes and improvement on the basis of above-described embodiment, all in right
Interior done equivalent variations or modification, all should fall within the protection domain of utility model.
Claims (10)
1. a kind of elevator drive, it is characterised in that：Including rectification unit, energy storage filter unit, inversion unit, band-type brake power supply,
And controller, the rectification unit is connected between AC network and the energy storage filter unit, for converting alternating current to
Direct current, the inversion unit is connected between the energy storage filter unit and hoisting motor, and the band-type brake power supply is connected to
Between the energy storage filter unit and traction brake, the controller connects the inversion unit and band-type brake electricity simultaneously
Source, the controller controls the frequency conversion of the inversion unit to export to control the frequency control and control of the hoisting motor
The voltage output of the band-type brake power supply is to realize the control for brake to the traction brake.
2. elevator drive as claimed in claim 1, it is characterised in that：The band-type brake power supply includes being sequentially connected first connect
Switch element, tank circuit unit, second switch unit and afterflow unit, the band-type brake power supply also include being connected to the energy storage
First voltage detection unit between circuit units and the controller, the controller connects the first switch unit simultaneously
With the second switch unit, the second switch unit and the afterflow unit electrically connect with the traction brake respectively
Connect, the first voltage detection unit is used for the output voltage for detecting the tank circuit unit, and the controller is according to described
The break-make of first switch unit described in the output voltage control that first voltage detection unit is detected is electric to the band-type brake to realize
The regulation of the output voltage in source, the controller controls the break-make of the second switch unit to realize to the traction brake
Control for brake, the afterflow unit is used for when the traction brake, discharges in the traction brake coil
Energy.
3. elevator drive as claimed in claim 2, it is characterised in that：The band-type brake power supply also includes being used to detect described the
Two switch elements whether the abnormal second voltage detection unit of break-make, the second voltage detection unit is connected to described the simultaneously
Between two switch elements and the controller and between the second switch unit and the afterflow unit.
4. elevator drive as claimed in claim 3, it is characterised in that：The second voltage detection unit and the described first electricity
It is negative-feedback proportional integral circuit to press detection unit.
5. elevator drive as claimed in claim 2, it is characterised in that：The first switch unit is the first metal-oxide-semiconductor, and institute
The positive pole of the drain electrode connection direct current of the first metal-oxide-semiconductor is stated, the source electrode of first metal-oxide-semiconductor connects the tank circuit list
Member, the grid of first metal-oxide-semiconductor connects the output end of the controller, and the second switch unit is the second metal-oxide-semiconductor, described
The drain electrode of second metal-oxide-semiconductor connects the tank circuit unit, and the source electrode of second metal-oxide-semiconductor connects the afterflow unit, described
The grid of second metal-oxide-semiconductor connects the output end of the controller.
6. elevator drive as claimed in claim 5, it is characterised in that：The tank circuit unit includes the first inductance, the
One diode and the first electric capacity, and one end of first inductance connects the source electrode of first metal-oxide-semiconductor and the one or two pole
The negative electrode of pipe, the other end of first inductance connects drain electrode and one end of first electric capacity of second metal-oxide-semiconductor, described
The anode of first diode connects the negative pole of the direct current and the other end of first electric capacity.
7. elevator drive as claimed in claim 5, it is characterised in that：The tank circuit unit includes the second inductance, the
Two diodes and the second electric capacity, and one end of second inductance connects the source electrode of first metal-oxide-semiconductor and the two or two pole
The negative electrode of pipe, the other end of second inductance connects the negative pole of the direct current and one end of second electric capacity, and described the
The anode of two diodes connects drain electrode and the other end of second electric capacity of second metal-oxide-semiconductor.
8. elevator drive as claimed in claim 5, it is characterised in that：The band-type brake power supply also includes overcurrent protection list
Member, the overcurrent protection unit is connected between the first switch unit and the positive pole of the direct current.
9. elevator drive as claimed in claim 6, it is characterised in that：The afterflow unit includes the 3rd diode and first
Resistance, the negative electrode of the 3rd diode connects the source electrode of second metal-oxide-semiconductor, and the anode connection of the 3rd diode is described
One end of first resistor, the other end of the first resistor connects the negative pole of the direct current.
10. elevator drive as claimed in claim 7, it is characterised in that：The afterflow unit includes the 4th diode and the
Two resistance, the anode of the 4th diode connects the source electrode of second metal-oxide-semiconductor, the negative electrode connection institute of the 4th diode
One end of second resistance is stated, the other end of the second resistance connects the negative pole of the direct current.
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|---|---|---|---|
| CN201621378550.8U CN206569857U (en) | 2016-12-15 | 2016-12-15 | A kind of elevator drive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378550.8U CN206569857U (en) | 2016-12-15 | 2016-12-15 | A kind of elevator drive |
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| CN206569857U true CN206569857U (en) | 2017-10-20 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471572A (en) * | 2018-04-26 | 2018-08-31 | 珠海锐视保科技有限公司 | Novel on-vehicle system |
| CN108667480A (en) * | 2018-04-26 | 2018-10-16 | 珠海锐视保科技有限公司 | Onboard system |
| CN108683973A (en) * | 2018-04-26 | 2018-10-19 | 珠海锐视保科技有限公司 | Vehicle-mounted monitoring system |
| CN110224620A (en) * | 2019-06-19 | 2019-09-10 | 日立楼宇技术（广州）有限公司 | A kind of elevator power supply system and elevator |
| CN110247561A (en) * | 2019-06-19 | 2019-09-17 | 日立楼宇技术（广州）有限公司 | A kind of band-type brake power supply, locking system and elevator |
| CN110350806A (en) * | 2019-07-18 | 2019-10-18 | 深圳市海浦蒙特科技有限公司 | A kind of band-type brake power supply |
| CN110733947A (en) * | 2019-09-12 | 2020-01-31 | 浙江威特电梯有限公司 | four-quadrant elevator control system and method |
| CN112631167A (en) * | 2020-12-08 | 2021-04-09 | 珠海格力电器股份有限公司 | Method and device for monitoring state of brake of servo motor |
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- 2016-12-15 CN CN201621378550.8U patent/CN206569857U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471572A (en) * | 2018-04-26 | 2018-08-31 | 珠海锐视保科技有限公司 | Novel on-vehicle system |
| CN108667480A (en) * | 2018-04-26 | 2018-10-16 | 珠海锐视保科技有限公司 | Onboard system |
| CN108683973A (en) * | 2018-04-26 | 2018-10-19 | 珠海锐视保科技有限公司 | Vehicle-mounted monitoring system |
| CN110224620A (en) * | 2019-06-19 | 2019-09-10 | 日立楼宇技术（广州）有限公司 | A kind of elevator power supply system and elevator |
| CN110247561A (en) * | 2019-06-19 | 2019-09-17 | 日立楼宇技术（广州）有限公司 | A kind of band-type brake power supply, locking system and elevator |
| CN110350806A (en) * | 2019-07-18 | 2019-10-18 | 深圳市海浦蒙特科技有限公司 | A kind of band-type brake power supply |
| CN110733947A (en) * | 2019-09-12 | 2020-01-31 | 浙江威特电梯有限公司 | four-quadrant elevator control system and method |
| CN112631167A (en) * | 2020-12-08 | 2021-04-09 | 珠海格力电器股份有限公司 | Method and device for monitoring state of brake of servo motor |
| CN112631167B (en) * | 2020-12-08 | 2021-09-28 | 珠海格力电器股份有限公司 | Method and device for monitoring state of brake of servo motor |
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