CN101663219B - Brake control device for elevator - Google Patents
Brake control device for elevator Download PDFInfo
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- CN101663219B CN101663219B CN2007800528576A CN200780052857A CN101663219B CN 101663219 B CN101663219 B CN 101663219B CN 2007800528576 A CN2007800528576 A CN 2007800528576A CN 200780052857 A CN200780052857 A CN 200780052857A CN 101663219 B CN101663219 B CN 101663219B
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- voltage
- elevator
- coil
- control device
- brake coil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
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- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
A brake control device for an elevator controls the voltage between the terminals of a brake coil (52) of the elevator, thereby controlling its brake operation. The brake control device comprises a transformer (25) having a primary coil (25a), one end of which is connected to a DC power supply, and a secondary coil (25b), a semiconductor switch element (27) connected to the other end of the primary coil (25a) of the transformer (25) and switching on or off the DC voltage applied to the transformer (25), a rectifier diode (31) for rectifying an AC voltage generated from the secondary coil (25b) of the transformer (25), and the brake coil (52) connected from the output of the rectifier diode (31) to the secondary coil (25b) through a normally-open contact point (33).
Description
Technical field
The present invention relates to the arrester control device of elevator.
Background technology
The arrester control device of elevator in the past such as following patent documentation 1 are said; Arrester control device carries out brakeage control through the voltage between terminals of the brake coil of control elevator; This arrester control device has: the 1st contact, and it is connected said brake coil and said voltage between terminals is carried out between the chopper circuit of copped wave control; And discharge circuit, its circuit by the circuit parallel that comprises resistance and capacitive element constitutes, and this discharge circuit and said brake coil are connected in parallel, so that when the 1st contact breaks off, make the current reflux of said brake coil.
According to this arrester control device, drg, elevator emergency is moved when stopping at once, can be reduced in the surge voltage that results from contact when promptly stopping simultaneously.
In addition; The arrester control device of elevator in the past such as following patent documentation 2 are said; Arrester control device carries out rectification to the alternating-current voltage/AC voltage from source of AC portion, and through contact component commutating voltage is imposed on brake coil, thus when carrying out the drg releasing action; The voltage that applies in making during the forced excitation is high potential; And the action of the on/off through contact component, being made as low voltage to the voltage that applies in during the maintenance afterwards, this arrester control device has: as the single phase alternating current power supply of source of AC portion; By the rectifier diode that carries out rectification (block diode) and the body that is connected in series that constitutes as the 1st and the 2nd contact of contact component; The divider resistance that is connected in parallel with the 2nd contact; With the flywheel diode that is connected in parallel with brake coil; One distolateral with brake coil via being connected in series distolateral connection of body with single phase alternating current power supply; With another of brake coil distolateral directly with another distolateral connection of single phase alternating current power supply; During forced excitation, be made as on-state to the 1st and the 2nd contact both sides, only be made as on-state to said the 1st contact in during keeping.
According to this arrester control device, as contact component, the AC load that can use capacity to cut off contact less than DC load is cut off contact.And, can omit divider resistance, perhaps in the time must using divider resistance, also can use the less divider resistance of capacity.
Patent documentation 1: TOHKEMY 2003-81543 communique
Patent documentation 2: TOHKEMY 2004-262582 communique
But, in the above-mentioned arrester control device of patent documentation 1 record, when chopper circuit occurs connecting fault, must utilize the 1st contact to cut off and flow to the DC current of brake coil, so exist the 1st contact to become large-scale problem.
In addition; In the above-mentioned arrester control device of patent documentation 2 records; Owing to the voltage that imposes on brake coil is not carried out copped wave, so exist as International Publication WO2004/028945 communique is disclosed, be difficult to reduce the problem of brakeage sound.
Summary of the invention
The present invention proposes in order to address the above problem; Its purpose is; A kind of arrester control device of elevator is provided; It utilizes thyristor that the voltage that imposes on brake coil is carried out on/off, when this thyristor occurs connecting fault, also can reduce to be used to cut off the rupturing capacity of the contact of the electric current that flows to brake coil.
The arrester control device of the elevator of first invention; Carry out brakeage control through the voltage between terminals of brake coil of control elevator; The arrester control device of this elevator is characterised in that; Have: voltage transformer, an end of its winding is connected with direct supply, and it has intensity coil; Semiconductor switching module, its other end with a winding of this voltage transformer is connected, and the said vdc that imposes on this voltage transformer is carried out on/off; Rectification unit, it carries out rectification to the alternating-current voltage/AC voltage that the intensity coil by said voltage transformer produces; And brake coil, its mouth from this rectification unit is connected with said intensity coil via contact.
The arrester control device of the elevator of second invention preferably has: the 1st reflux unit, and it makes the 1st current reflux that when semiconductor switching module carries out off action, flows to brake coil under the state of junction closure; With the 2nd reflux unit, when it breaks off at said contact, make the 2nd current reflux that flows to said brake coil, make said the 1st electric current of time ratio of said the 2nd current damping short simultaneously.Thus, for example when contact became disconnection by closure, the electric current that flows to brake coil was decayed rapidly.Therefore, elevator is stopped rapidly.
Contact in the arrester control device of the elevator of the 3rd invention is preferred only to become disconnection by closure when elevator emergency stops.
Has following effect according to the present invention; Can utilize thyristor that the voltage that imposes on brake coil is carried out on/off; When this thyristor occurs connecting fault, also can reduce to be used to cut off the rupturing capacity of the contact of the electric current that flows to brake coil.
Description of drawings
Fig. 1 is the overall diagram of arrester control device of the elevator of expression an embodiment of the invention.
Fig. 2 is the cut-away view of drg drive division shown in Figure 1.
Fig. 3 is the mode chart of the control of expression drg shown in Figure 2, and Fig. 3 (A) is that brake coil current mode chart, Fig. 3 (B) are that the mode chart of control signal, the mode chart that Fig. 3 (C) is a winding voltage of voltage transformer, the mode chart that Fig. 3 (D) is the intensity coil voltage of voltage transformer, terminal voltage mode chart, Fig. 3 (F) that Fig. 3 (E) is brake coil are the waveforms that flows to the electric current of field effect transister.
Fig. 4 is the cut-away view of the drg drive division of expression another embodiment of the present invention.
Label declaration
25 voltage transformers; Winding of 25a; The 25b intensity coil; 27 thyristors; 31 rectifier diodes; 33 normal opened contacts; 47 the 1st backflow diodes; 52 brake coils; 101 the 2nd backflow diodes; 103 the 1st backflow resistance.
The specific embodiment
Utilize Fig. 1 and Fig. 2 that an embodiment of the invention are described.Fig. 1 is the overall diagram of arrester control device of the elevator of expression an embodiment of the invention, and Fig. 2 is the cut-away view of drg drive division shown in Figure 1.
In Fig. 1, elevator control device has through no fusible disconnecting switch 4 and three-phase alternating-current supply 3 bonded assembly motor control part 5.Motor control part 5 forms the three-phase alternating voltage that applies the variable voltage variable frequency to three-phase motor 9; And driving three-phase motor 9 makes rope sheave 13 rotations; The rope 15 that hangs on the rope sheave 13 is moved up and down, the counterweight 17 of an end that is fixed on rope 15, the car 19 that is fixed on the other end of rope 15 are gone up and down.
Three-phase motor 9 is braked device 10 constraint/releases, and drg 10 forms through the voltage that imposes on brake coil 52 being carried out copped wave control, by the electric current of drg drive division 20 control flows to brake coil 52.Drg drive division 20 is connected with three-phase alternating-current supply 3 via no fusible disconnecting switch 4, and according to moving from the command signal of drg control part 40.
In Fig. 2, drg drive division 20 has: three-phase full wave rectifier circuit 21, and it is connected with three-phase alternating-current supply 3 via no fusible disconnecting switch 4, and this three-phase alternating-current supply 3 is carried out three phase full wave rectification; With cond 23, it makes the output voltage smoothed of three-phase full wave rectifier circuit 21, and reduces the high-frequency impedance of circuit.In addition, drg drive division 20 has: voltage transformer 25, and the end of its winding 25a is connected with the positive side of cond 23, and voltage transformer 25 has insulated intensity coil 25b simultaneously; With as the enhancement mode N-channel MOS FET of semiconductor switching module (below be called thyristor) 27, its drain electrode is connected with the other end of a winding 25a of voltage transformer 25, source electrode is connected with the minus side of three-phase full wave rectifier circuit 21.The grid of thyristor 27 is connected with drg control part 40, and thyristor 27 forms voltage at this grid when high, and thyristor 27 is connected, and thyristor 27 breaks off when the voltage of grid is low.
At this, normal opened contact 33 is set is for reliable cut-out the when the abnormal elevator flows to the electric current of brake coil 52 and retrain drg 10, car 19 is stopped, to guarantee safety.
Below, the relational expression of the various piece of the drg drive division 20 of formation as stated is described.At first, be made as V to the terminal voltage of intensity coil 25b (secondary voltage)
2The time, there is the relation shown in the following formula between winding 25a of voltage transformer 25 and the intensity coil 25b.
V
2＝(N
2/N
1)·V
1...(1)
Wherein, N
2: the number of turn of intensity coil, N
1: the number of turn of a winding, V
1: the terminal voltage of a winding (primary voltage)
And, be made as I to exciting current
1' time, flow through the primary current I of a winding
1With the secondary current I that flows through intensity coil
2Relation be shown below.
I
1＝(N
2/N
1)·I
2+I
1’...(2)
And, be made as E at lead-out terminal voltage three-phase full wave rectifier circuit
dThe time, flow through the exciting current I of voltage transformer 25
1' be shown below.
I
1’＝(E
d/L
1)·T
on ...(3)
Wherein, T
On: the turnon time of the on-off element in the PWM cycle.
In addition, the average terminal voltage V of brake coil 52
BavBe shown below.
V
Bav＝(N
2/N
1)·E
d·D
on-V
D·(1-D
on)...(4)
V
D: the terminal voltage of backflow diode
D
On: the ratiometric value of the time that the on-off element in the normalization method ground expression PWM carrier cycle is connected is called the connection ratio.
Be made as R to the resistance of brake coil 52
BThe time, flow through the electric current I of brake coil 52
BKBe shown below.
I
BK＝V
Bav/R
B ...(5)
< fault of thyristor 27 >
When the on-off element 27 of drive brake device coil 52 occurs being switched on or switched off fault, also can easily utilize normal opened contact 33 to cut off the electric current that flows to brake coil 52 according to following said.
Open failure
Owing to can not apply alternating voltage to a winding 25a of voltage transformer 25, so intensity coil 25b does not produce voltage.Therefore, can easily utilize normal opened contact 33 to cut off the electric current that flows to brake coil 52, can retrain drg 10 thus.
Connect fault
At the initial stage that fault appears connecting in semiconductor switch 27, electric current flows through a winding 25a of voltage transformer 25, and the average voltage that brake coil is 52 rises.But, because the component of current that increases pro rata with turnon time of a winding 25a of voltage transformer 25 continues to increase, so the magnetic substance of voltage transformer 25 produces magnetic saturation.Thus, the voltage of intensity coil 25b descends.Therefore, can easily cut off the electric current that flows to brake coil 52, retrain drg 10 thus through utilizing normal opened contact 33.
Utilize the action of the arrester control device of Fig. 1～elevator that Fig. 3 explanation constitutes as stated.Fig. 3 is the sequential chart of action of the arrester control device of expression elevator shown in Figure 1.
At first, car 19 stops, under the state of drg 10 brake motors 9; When the generation car is exhaled ladder; Make normal opened contact 33 become closure, utilize motor control part 5 to make electrical motor 9 rotations and starting car 19 then, and make thyristor 27 on/off by disconnection; Shown in Fig. 3 (c), produce the primary voltage of voltage transformer 25.In the intensity coil 25b of voltage transformer 25, because the mutual inductance effect shown in Fig. 3 (d), produces secondary voltage, and applies the rectangular wave of side of the positive electrode through 31 pairs of brake coils 52 of rectifier diode.Make bigger current direction brake coil 52 and forced excitation, drg 10 is discharged from restrained condition.During the forced excitation interval is graphic a and b.
Then, behind forced excitation process certain hour, the maintenance action of the current direction brake coil 52 of the electric current when making less than forced excitation.During keeping between active region being graphic c and d.Behind maintenance action process certain hour, drg 10 discharges.Under this state, the electric current holding current of the electric current when making less than forced excitation flows to brake coil 52, to keep the release position of drg 10.And, after car 19 is near destination, utilize motor control part 5 to make electrical motor 9 reduce speed now and stop, and drg control part 40 stops command signal from constant speed, thyristor 27 is broken off.After thyristor 27 breaks off, flow to the current direction backflow diode 47 and the decay of brake coil 52, and drg 10 becomes constraint from release, and constraint electrical motor 9.
Embodiment 2
Utilize Fig. 4 that another embodiment of the present invention is described.Fig. 4 is the cut-away view of the drg drive division of another embodiment of expression.In Fig. 4, use the label identical to represent same section, and omit explanation with Fig. 2.
In Fig. 4; The drive division 120 of drg will be connected with the cathode side of rectifier diode 31 as the cathode side of the 1st backflow diode 101 of the 1st reflux unit; The anode-side of the 1st backflow diode 101 is connected with the other end of the intensity coil 25b of voltage transformer 25, also is connected simultaneously with the other end of brake coil 52.The 2nd backflow diode 47 is connected with brake coil 52 through the 2nd backflow resistance 103.
In addition, the 2nd reflux unit is made up of the 2nd backflow diode 47 and the 2nd backflow resistance 103.
With reference to Fig. 3 and Fig. 4 explanation action of the arrester control device of formation as stated.
Usually the time
When common, drg 10 is according to the voltage command signal from drg control part 40 thyristor 27 to be broken off by the transformation that discharges to constraint, and cuts off the voltage of a winding 25a who imposes on voltage transformer 25.Thus, the output voltage of the intensity coil 25b of voltage transformer 25 becomes zero.And the 1st electric current that flows to brake coil 52 flows via the 1st backflow diode 101, and the resistance through brake coil 52 and consumed energy, current damping, and drg 10 becomes constraint from release.
Unusually the time
When unusual; Drg 10 realized through making normal opened contact 33 become to break off from closure by the transformation that discharges to constraint, and when normal opened contact 33 broke off, the 2nd electric current that flows to brake coil 52 flowed via the 2nd backflow diode 47 and the 2nd backflow resistance 103; Resistance and the 2nd backflow resistance 103 that energy is braked device coil 52 consume; So compare when common, electric current is decayed fast, drg 10 becomes constraint from release.
The arrester control device of the elevator of above-mentioned embodiment; Carry out the action control of drg 10 through the voltage between terminals of brake coil 52 of control elevator; The arrester control device of this elevator has: voltage transformer 25; The end of its winding 25a is connected with direct supply, and has intensity coil 25b; Thyristor 27, its other end with a winding 25a of this voltage transformer 25 is connected, and makes the vdc on/off that imposes on this voltage transformer 25; Rectifier diode 31, it carries out rectification to the alternating-current voltage/AC voltage that the intensity coil 25b by voltage transformer 25 produces; With brake coil 52, its mouth from this rectifier diode 31 is connected with the intensity coil 25b of voltage transformer 25 via normal opened contact 33.
According to this control setup; Can carry out on/off through the voltage that 27 pairs of thyristors impose on brake coil 52; And make the terminal voltage of brake coil 52 variable, when this thyristor 27 occurs connecting fault, squint in the magnetic field of voltage transformer 25 simultaneously; Only produce voltage among the intensity coil 25b of voltage transformer 25 at short notice, but just no longer produce voltage at once.Therefore, the electric current that flows to brake coil 52 reduces, so when cutting off this electric current in that normal opened contact 33 is broken off, also can reduce the rupturing capacity of normal opened contact 33.
And when open failure appearred in this thyristor 27, voltage transformer 25 was unexcited, so do not produce voltage among the intensity coil 25b of voltage transformer 25.Therefore, the electric current that flows to brake coil 52 also diminishes, so when cutting off this electric current in that normal opened contact 33 is broken off, also can reduce the rupturing capacity of normal opened contact 33.
And preferred arrester control device has: the 1st backflow diode 101, and it makes the 1st current reflux that when thyristor 27 carries out off action, flows to brake coil 52 under the state of normal opened contact 33 closures; With the 2nd backflow diode 47 and the 2nd backflow resistance 103, when they break off at normal opened contact 33, make the 2nd current reflux that flows to brake coil 52, make time ratio the 1st electric current of the 2nd current damping short simultaneously.Thus, 33 of normal opened contacts become disconnection from closure when elevator emergency stops, and the electric current that flows to brake coil 52 is decayed rapidly.Therefore, elevator can be tackled urgent halt instruction rapidly.
Utilizability on the industry
The present invention can be applicable to the arrester control device of elevator.
Claims (3)
1. the arrester control device of an elevator, its voltage between terminals through the brake coil of control elevator is carried out brakeage control, it is characterized in that the arrester control device of this elevator has:
Voltage transformer, an end of its winding is connected with direct supply, and this voltage transformer has intensity coil;
Semiconductor switching module, its other end with a winding of this voltage transformer is connected, and the said vdc that imposes on this voltage transformer is carried out on/off;
Rectification unit, it carries out rectification to the alternating-current voltage/AC voltage that the intensity coil by said voltage transformer produces; And
Brake coil, its mouth from this rectification unit is connected with said intensity coil via contact.
2. the arrester control device of elevator according to claim 1 is characterized in that, the arrester control device of this elevator has:
The 1st reflux unit, it makes the 1st current reflux that when said semiconductor switching module carries out off action, flows to said brake coil under the state of said junction closure; And
The 2nd reflux unit when it breaks off at said contact, makes the 2nd current reflux that flows to said brake coil, makes said the 1st electric current of time ratio of said the 2nd current damping short simultaneously.
3. the arrester control device of elevator according to claim 1 is characterized in that, said contact only becomes disconnection by closure when said elevator promptly stops.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2007/059493 WO2008139567A1 (en) | 2007-05-08 | 2007-05-08 | Brake control device for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101663219A CN101663219A (en) | 2010-03-03 |
| CN101663219B true CN101663219B (en) | 2012-04-04 |
Family
ID=40001799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800528576A Active CN101663219B (en) | 2007-05-08 | 2007-05-08 | Brake control device for elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4962566B2 (en) |
| CN (1) | CN101663219B (en) |
| WO (1) | WO2008139567A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492138B (en) * | 2009-03-12 | 2011-02-16 | 石家庄五龙制动器有限公司 | Control circuit and control method of elevator braking system |
| CN101844715B (en) * | 2010-06-11 | 2013-07-10 | 日立电梯（中国）有限公司 | Novel elevator brake control system |
| JP2012020825A (en) * | 2010-07-13 | 2012-02-02 | Toshiba Elevator Co Ltd | Brake control device of elevator |
| CN102070104B (en) * | 2011-01-28 | 2012-11-28 | 石家庄五龙制动器股份有限公司 | Pulse width modulation (PWM) control circuit of elevator brake |
| CN102295242B (en) * | 2011-08-29 | 2013-06-26 | 石家庄五龙制动器股份有限公司 | Elevator-brake mute-operation control circuit |
| CN102674194A (en) * | 2012-05-23 | 2012-09-19 | 佛山市顺德区金泰德胜电机有限公司 | Control circuit of elevator brake |
| FI123506B (en) * | 2012-05-31 | 2013-06-14 | Kone Corp | Elevator control and elevator safety arrangement |
| WO2014086669A1 (en) * | 2012-12-03 | 2014-06-12 | Inventio Ag | Actuating an electromagnetic lift brake for a lift system |
| CN105060037B (en) * | 2015-08-10 | 2017-03-22 | 上海新时达电气股份有限公司 | Brake control method and system |
| CN108639881B (en) * | 2018-05-11 | 2020-12-04 | 日立楼宇技术（广州）有限公司 | Control method and device for elevator brake, equipment and storage medium |
| EP3590879A1 (en) * | 2018-07-04 | 2020-01-08 | KONE Corporation | Elevator brake controller with earth fault detection |
| CN108792859B (en) * | 2018-08-14 | 2024-05-10 | 广东寰宇电子科技股份有限公司 | Method, device and system for realizing power supply of elevator system based on elevator power supply device |
| GB2615371A (en) * | 2022-02-08 | 2023-08-09 | Lester Control Systems Ltd | Lift control |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003081543A (en) * | 2001-09-14 | 2003-03-19 | Toshiba Elevator Co Ltd | Brake control device for elevator |
| JP3416795B2 (en) * | 1998-06-30 | 2003-06-16 | ミネベア株式会社 | Power supply method and device for electromagnetic equipment |
| JP2004262582A (en) * | 2003-02-28 | 2004-09-24 | Toshiba Elevator Co Ltd | Elevator brake control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0729746B2 (en) * | 1984-01-11 | 1995-04-05 | 株式会社日立製作所 | Elevator emergency stop control device |
| JPH03143884A (en) * | 1990-09-19 | 1991-06-19 | Hitachi Ltd | Control circuit of elevator |
-
2007
- 2007-05-08 CN CN2007800528576A patent/CN101663219B/en active Active
- 2007-05-08 WO PCT/JP2007/059493 patent/WO2008139567A1/en active Application Filing
- 2007-05-08 JP JP2009513907A patent/JP4962566B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3416795B2 (en) * | 1998-06-30 | 2003-06-16 | ミネベア株式会社 | Power supply method and device for electromagnetic equipment |
| JP2003081543A (en) * | 2001-09-14 | 2003-03-19 | Toshiba Elevator Co Ltd | Brake control device for elevator |
| JP2004262582A (en) * | 2003-02-28 | 2004-09-24 | Toshiba Elevator Co Ltd | Elevator brake control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2008139567A1 (en) | 2010-07-29 |
| WO2008139567A1 (en) | 2008-11-20 |
| CN101663219A (en) | 2010-03-03 |
| JP4962566B2 (en) | 2012-06-27 |
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