CN207581083U - Band-type brake circuit and elevator control system - Google Patents
Band-type brake circuit and elevator control system Download PDFInfo
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- CN207581083U CN207581083U CN201721102525.1U CN201721102525U CN207581083U CN 207581083 U CN207581083 U CN 207581083U CN 201721102525 U CN201721102525 U CN 201721102525U CN 207581083 U CN207581083 U CN 207581083U
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Abstract
The utility model provides a kind of band-type brake circuit and elevator control system, and the band-type brake circuit is included for the safety return circuit to the current supply circuit of band-type brake coil power supply and for the current supply circuit to be controlled to be connected and disconnect, wherein：The current supply circuit includes sequentially connected AC input cell, rectification unit and DC converting unit, and the AC input cell includes the first main contact of the first relay being connected in series in the AC input cell；The safety return circuit includes the first coil of first relay, and the first coil attracts the first main contact of first relay to be connected when the safety return circuit is connected.The utility model is arranged on the relay of the AC input cell of current supply circuit by safety return circuit control so that the volume-diminished of entire electric life controller, and it is mute.
Description
Technical field
The utility model is related to field of elevator control, more specifically to a kind of band-type brake circuit and elevator control system.
Background technology
In recent years, steeply rising with elevator usage, elevator safety accident is also in the situation being gradually increasing, wherein braking
Device failure accounts for about 80%.Here in addition to mechanical breakdown, a major reason for leading to brake troubles is exactly elevator brake
The contact of the switching switch of brake loop sticks together in system, makes brake can not brake application.And lead to the contact of switching switch
Most the underlying cause to stick together, in that the magnetizing coil of brake is serially connected in this brake loop, causes to flow through
The electric current of switching switch contact is excessive, and the freewheel current of brake magnetizing coil also all flows through switching switch contact.
As shown in Figure 1, being existing typical brake loop, door lock relay has been concatenated after full-wave rectifying circuit D1-D4
DJ, operation relay CJ, resistance R1, band-type brake relay ZJ and brake magnetizing coil L, are parallel at the both ends of resistance R1 and are used for
Realize the switching switch K of excitatory/holding voltage conversion.In the brake loop, due to each switching device and the excitatory line of brake
Circle L is connected in series with, so flowing through the excitation current of brake loop generally up to several amperes.It is disconnected in switching switch K
Moment, the freewheel current of brake magnetizing coil L will be by diode D3, D4 in full-wave rectifying circuit, with switching switch K shapes
Into circuit, the phenomenon of arc discharge of switch contact is thereby resulted in.
To avoid relay switch contact arcing, as disclosed in the Chinese patent of Publication No. CN104379479A,
Peace can be realized by cutting off the power supply on band-type brake power supply PWM (Pulse Width Modulation, pulse width modulation) access
Full band-type brake control.
However, the scheme of above-mentioned band-type brake dump there are volume it is big, it is of high cost, assembling trouble, noise is big the defects of.
Utility model content
The technical problem to be solved by the present invention is to, for above-mentioned brake loop there are security risk and volume it is big,
Of high cost, assembling trouble, the problems such as noise is big, provide a kind of new band-type brake circuit and elevator control system.
The utility model solve above-mentioned technical problem technical solution be to provide a kind of band-type brake circuit, including be used for embrace
The current supply circuit of lock coil power supply and the safety return circuit for the current supply circuit to be controlled to be connected and disconnect, wherein：The confession
Electrical circuit includes sequentially connected AC input cell, rectification unit and DC converting unit, and the AC input cell
The first main contact including being connected in series in the first relay in the AC input cell；The safety return circuit includes described
The first coil of first relay, and the first coil attracts the of first relay when the safety return circuit is connected
One main contact is connected.
In band-type brake circuit described in the utility model, the AC input cell of the current supply circuit includes connecting fire
The first terminal of line, and the first main contact of first relay is connected to the first terminal.
In band-type brake circuit described in the utility model, the band-type brake circuit includes the first measure loop, and described first
Measure loop includes the first interface for connecting master control borad；First measure loop includes the first auxiliary contact, and described
First auxiliary contact is connected when first main contact disconnects, is disconnected when first main contact is connected.
In band-type brake circuit described in the utility model, the AC input cell of the current supply circuit includes connecting zero
The Second terminal of line；The AC input cell further includes the second relay for being connected in series in the AC input cell
Second main contact, and second main contact is connected to the Second terminal；The safety return circuit includes second relay
The second coil, second coil is connected in parallel with the first coil, and second coil is led in the safety return circuit
The second main contact of second relay is attracted to be connected when logical.
In band-type brake circuit described in the utility model, the band-type brake circuit includes the second measure loop, and described second
Measure loop includes the second interface for connecting master control borad；Described second checks that circuit includes the second auxiliary contact, and described
Second auxiliary contact is connected when second main contact disconnects, is disconnected when second main contact is connected.
In band-type brake circuit described in the utility model, the DC converting unit of the current supply circuit includes DC converting
Device, and the input terminal of the DC converter is connected to the output terminal of the rectification unit, the output terminal of the DC converter
Connect the band-type brake coil.
In band-type brake circuit described in the utility model, the band-type brake circuit further includes switch unit and current attenuation list
Member, and the switch unit is connected in series in the output terminal of the DC converter, the attenuation units with the band-type brake coil
With the band-type brake parallel connection of coil.
In band-type brake circuit described in the utility model, the attenuation units include the resistance and diode that are connected in series with.
The utility model also provides a kind of elevator control system, including band-type brake circuit as described above.
The band-type brake circuit and elevator control system of the utility model have the advantages that：It is set by safety return circuit control
Put the relay in the AC input cell of current supply circuit so that the volume-diminished of entire electric life controller, and it is mute.Also,
The utility model greatly improves the safety of band-type brake circuit by Redundancy Design and measure loop.
Description of the drawings
Fig. 1 is the schematic diagram of existing band-type brake circuit；
Fig. 2 is the block diagram of the utility model band-type brake circuit embodiment；
Fig. 3 is the circuit diagram of the utility model band-type brake circuit embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Fig. 2, being the block diagram of the utility model band-type brake circuit embodiment, which can be applied to elevator control
System processed ensures lift running safety.Band-type brake circuit in the present embodiment includes current supply circuit 2 and for controlling above-mentioned power supply
The safety return circuit 1 that circuit 2 is connected and disconnects.
Above-mentioned current supply circuit 2 connects AC power and for powering to band-type brake coil 3, which includes connecting successively
AC input cell 21, rectification unit 22 and the DC converting unit 23 connect, wherein AC input cell 21 are connected to outside
AC power (such as 220V AC powers), the alternating current that AC input cell 21 inputs then is converted to direct current by rectification unit 22
Electricity, the direct current that DC converting unit 23 is exported using rectification unit 22 are powered for band-type brake coil 3.In elevator normal course of operation
In, safety return circuit 1 is connected (24V), and above-mentioned current supply circuit 2 makes brake keep the shape that declutches to 3 output services electric current of band-type brake coil
State.Elevator it is out of service or occur safety return circuit failure when, current supply circuit 2 disconnects, and stops powering to band-type brake coil 3.
With reference to Fig. 3, the AC input cell 21 of above-mentioned current supply circuit 2, which further includes, is connected in series in the AC input cell 21
In the first relay the first main contact K1, and current supply circuit 2 disconnects when above-mentioned first main contact K1 is disconnected, and the first master touches
Current supply circuit 2 is connected when head K1 is closed.Particularly, above-mentioned first main contact K1 is normally open contact, correspondingly, above-mentioned safety return circuit
1 includes the first coil L1 of the first relay, and first coil L1 attracts the first of the first relay when safety return circuit 1 is connected
Main contact K1 is connected.
In elevator normal operation, elevator control system (i.e. interface X1) to safety return circuit 1 export supply voltage (such as
24V), make to generate magnetic field in first coil L1, so as to attract the movable contact spring of the first main contact K1, be in the first main contact K1 and lead
Logical state, the alternating current (such as 220V) that current supply circuit 2 inputs interface X2 at this time are converted to direct current, and to band-type brake coil L
Normal power supply；When receiving band-type brake instruction or safety return circuit breaks down, elevator control system stops supplying to safety return circuit 1
Electricity, magnetic field disappears in first coil L1, so as to discharge the movable contact spring for attracting the first main contact K1, disconnects the first main contact K1,
So as to which current supply circuit 2 stops powering to band-type brake coil L, make brake.
Above-mentioned band-type brake circuit controls the relay for the AC input cell for being arranged on current supply circuit 2 by safety return circuit 1, makes
The volume-diminished of entire electric life controller is obtained, and mute.
The AC input cell 21 of above-mentioned current supply circuit includes the first terminal of the firewire for connecting interface X2, and first
First main contact K1 of relay is connected to first terminal.Above-mentioned band-type brake circuit further includes the first measure loop, and first inspection
Survey time road is included for the first interface X3 and the first auxiliary contact K1 ' that connect master control borad, and the first auxiliary contact K1 ' and the
There is forced guiding structure between one main contact K1, i.e. the first auxiliary contact K1 ' is connected when the first main contact K1 is disconnected,
First main contact K1 is disconnected when being connected.
When the first relay sticks together, that is, failure of causing danger, the first measure loop will be by first interface X3 to electricity
Terraced control system (master control borad) sends signal, so as to ensure that master control borad one surely detects the failure, and takes corresponding reply
Measure.
To ensure reliability, Redundancy Design can be taken, i.e. AC input cell 21 is further included for the zero of connecting interface X2
Second main contact K2 of the Second terminal of line and the second relay being connected in series in the AC input cell 21, and K2
Two main contacts are connected to the Second terminal；Correspondingly, safety return circuit 1 includes the second coil L2 of the second relay, the second line
Circle L2 and first coil L1 is connected in parallel, and the second coil L2 attracts the second of the second relay when safety return circuit 1 is connected
Main contact K2 is connected.Since two safety relays are connected in AC input cell 21, when wherein any one is disconnected, supply
Electrical circuit input can be cut off, and further improve safety.
Correspondingly, above-mentioned band-type brake circuit may also include the second measure loop, and second measure loop includes connecting
The second interface X4 of master control borad and the second auxiliary contact K2 ', and have between the second auxiliary contact K2 ' and the second main contact K2
There is forced guiding structure, i.e. the second auxiliary contact K2 ' is connected when the second main contact K2 is disconnected, is connected in the second main contact K2
When disconnect.
The DC converting unit 23 of above-mentioned current supply circuit 2 may include a DC converter, and the input of DC converter
End is connected to the output terminal of rectification unit (such as the full bridge rectifier being made of in Fig. 3 four diodes), DC converter
Output terminal connection band-type brake coil L.And band-type brake circuit may also include switch unit Q and current attenuation unit, and switch unit Q with
Band-type brake coil is connected in series in the output terminal of DC converter, and attenuation units are connected in parallel with band-type brake coil L.When the first relay
The first main contact K1 and the second relay the second main contact K2 in any one dead electricity, under the output voltage of DC converter
Under-voltage point is down to, then switch unit Q is made to open a way, the electric current commutation of band-type brake coil L is carried out via attenuation units, makes band-type brake control more
In time, it responds rapider.Common switching tube, such as MOSFET, IGBT can be used in above-mentioned switch unit Q.
Above-mentioned attenuation units specifically may include the resistance R and diode D being connected in series with.Certainly, in practical applications, it is above-mentioned
The structure of the quick bleed off of electric current in any achievable band-type brake coil L can be used in attenuation units.
The utility model also provides a kind of elevator control system for including band-type brake circuit as described above, compared to existing electricity
Terraced control system can not only reduce machine volume, but also its safety greatly improves.
Above-mentioned first main contact K1, the second main contact K2, the first auxiliary contact K2 ', the second auxiliary contact K2 ' are respectively included
Two contacts and a movable contact spring, the first main contact K1, the second main contact K2, the first auxiliary contact K2 ' or the second auxiliary contact
K2 ' conductings refer to that two contacts are electrically connected by movable contact spring, the first main contact K1, the second main contact K2, the first auxiliary contact K2 '
Or second auxiliary contact K2 ' disconnection refer to two contact opens.
The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, can be readily occurred in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
It is subject to the protection scope in claims.
Claims (9)
1. a kind of band-type brake circuit, which is characterized in that including being used for the current supply circuit of band-type brake coil power supply and for controlling
Current supply circuit conducting and the safety return circuit disconnected are stated, wherein：The current supply circuit includes sequentially connected AC input cell, whole
Flow unit and DC converting unit, and the AC input cell include being connected in series in the AC input cell the
First main contact of one relay；The safety return circuit includes the first coil of first relay, and the first coil
The first main contact of first relay is attracted to be connected when the safety return circuit is connected.
2. band-type brake circuit according to claim 1, it is characterised in that：The AC input cell of the current supply circuit includes using
In the first terminal of connection firewire, and the first main contact of first relay is connected to the first terminal.
3. band-type brake circuit according to claim 1, it is characterised in that：The band-type brake circuit includes the first measure loop, and
First measure loop includes the first interface for connecting master control borad；First measure loop includes the first auxiliary and touches
Head, and first auxiliary contact is connected when first main contact disconnects, is disconnected when first main contact is connected.
4. band-type brake circuit according to claim 2, it is characterised in that：The AC input cell of the current supply circuit includes using
In the Second terminal of connection zero curve；The AC input cell further includes second be connected in series in the AC input cell
Second main contact of relay, and second main contact is connected to the Second terminal；The safety return circuit includes described the
Second coil of two relays, second coil are connected in parallel with the first coil, and second coil is in the peace
Full loop attracts the second main contact of second relay to be connected when being connected.
5. band-type brake circuit according to claim 4, it is characterised in that：The band-type brake circuit includes the second measure loop, and
Second measure loop includes the second interface for connecting master control borad；Second measure loop includes the second auxiliary and touches
Head, and second auxiliary contact is connected when second main contact disconnects, is disconnected when second main contact is connected.
6. band-type brake circuit according to claim 1, it is characterised in that：The DC converting unit of the current supply circuit includes straight
Current converter, and the input terminal of the DC converter is connected to the output terminal of the rectification unit, the DC converter
Output terminal connects the band-type brake coil.
7. band-type brake circuit according to claim 6, it is characterised in that：The band-type brake circuit further includes switch unit and electric current
Attenuation units, and the switch unit is connected in series in the output terminal of the DC converter, the electricity with the band-type brake coil
Flow attenuation units and the band-type brake parallel connection of coil.
8. band-type brake circuit according to claim 7, it is characterised in that：The current attenuation unit includes the electricity being connected in series with
Resistance and diode.
9. a kind of elevator control system, it is characterised in that：Including the band-type brake circuit as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102525.1U CN207581083U (en) | 2017-08-30 | 2017-08-30 | Band-type brake circuit and elevator control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102525.1U CN207581083U (en) | 2017-08-30 | 2017-08-30 | Band-type brake circuit and elevator control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207581083U true CN207581083U (en) | 2018-07-06 |
Family
ID=62718867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721102525.1U Active CN207581083U (en) | 2017-08-30 | 2017-08-30 | Band-type brake circuit and elevator control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207581083U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109756158A (en) * | 2018-11-30 | 2019-05-14 | 武汉华中数控股份有限公司 | A kind of circuit that quick band-type brake can be achieved |
| CN110880904A (en) * | 2019-10-16 | 2020-03-13 | 珠海格力电器股份有限公司 | Servo motor and method for automatically eliminating back electromotive force of band-type brake |
| CN111824889A (en) * | 2020-08-21 | 2020-10-27 | 苏州汇川技术有限公司 | Elevator brake system fault detection method and device and elevator brake system |
| CN114275640A (en) * | 2021-12-30 | 2022-04-05 | 苏州汇川控制技术有限公司 | Elevator controller and elevator |
| CN114890256A (en) * | 2022-06-16 | 2022-08-12 | 苏州汇川控制技术有限公司 | Elevator brake control circuit based on PESSRAL and elevator equipment |
| CN115159291A (en) * | 2022-07-25 | 2022-10-11 | 苏州安驰控制系统有限公司 | Elevator brake circuit, detection method and computer storage medium |
-
2017
- 2017-08-30 CN CN201721102525.1U patent/CN207581083U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109756158A (en) * | 2018-11-30 | 2019-05-14 | 武汉华中数控股份有限公司 | A kind of circuit that quick band-type brake can be achieved |
| CN110880904A (en) * | 2019-10-16 | 2020-03-13 | 珠海格力电器股份有限公司 | Servo motor and method for automatically eliminating back electromotive force of band-type brake |
| CN111824889A (en) * | 2020-08-21 | 2020-10-27 | 苏州汇川技术有限公司 | Elevator brake system fault detection method and device and elevator brake system |
| CN114275640A (en) * | 2021-12-30 | 2022-04-05 | 苏州汇川控制技术有限公司 | Elevator controller and elevator |
| CN114890256A (en) * | 2022-06-16 | 2022-08-12 | 苏州汇川控制技术有限公司 | Elevator brake control circuit based on PESSRAL and elevator equipment |
| CN115159291A (en) * | 2022-07-25 | 2022-10-11 | 苏州安驰控制系统有限公司 | Elevator brake circuit, detection method and computer storage medium |
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