CN104753403B - A kind of motor internal contracting brake control system of building hoist - Google Patents
A kind of motor internal contracting brake control system of building hoist Download PDFInfo
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- CN104753403B CN104753403B CN201510148668.5A CN201510148668A CN104753403B CN 104753403 B CN104753403 B CN 104753403B CN 201510148668 A CN201510148668 A CN 201510148668A CN 104753403 B CN104753403 B CN 104753403B
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Abstract
The embodiment of the invention discloses a kind of motor internal contracting brake control systems of building hoist, and for passing through brake sticking brake circuit, motor DC brake is realized to motor internal contracting brake or the control declutched.The embodiment of the present invention includes：Three-phase input end, brake sticking brake circuit, braking contactor (KM1), isolating transformer, electric control circuit, input contactor, the frequency converter for driving motor and motor DC brake；The three-phase input end is connected with the brake sticking brake circuit；The brake sticking brake circuit is connected by the braking contactor (KM1) with the motor DC brake；The three-phase input end is connected by the isolating transformer with the electric control circuit；The three-phase input end is connected by the input contactor with the frequency converter；The frequency converter is connected with the electric control circuit, and the electric control circuit is connected with the brake sticking brake circuit.The embodiment of the present invention avoids increasing the extra duty of isolating transformer, reduces the volume and design cost of isolating transformer.
Description
Technical field
The present invention relates to the motor internal contracting brake controls of the brake sticking brake control field more particularly to a kind of building hoist of motor
System.
Background technology
In building machinery industry, when frequency converter failure, manual stoppage or the main electric power down of input AC, construction
Elevator needs to shut down in time, i.e., motor is needed immediately by locking.In field application, general motor operation and stopping are to pass through electricity
Machine DC brake is dead electricity (or static) band-type brake in motor DC brake principle come what is controlled, obtain it is electric declutch, motor DC
What the brake block and motor of brake were connected to, at dead electricity (or static), no electric current flows through motor DC brake
Coil, motor is by brake block machinery locking, it is impossible to operate, this action abbreviation band-type brake；When motor DC brake obtains centainly
During voltage, there is electric current to flow through electromagnetic coil, electromagnetic force is attracted brake block so that brake block discharges, and motor can run well, this
Action is referred to as declutched, and usually, the rated voltage of motor DC brake is certain value, such as direct current 195V.Brake sticking brake fills
The purpose put is exactly to realize that output is approximately equal to a DC voltage of motor DC brake rated voltage, to control motor DC
It the band-type brake of brake and declutches, so as to ensure the normal operation of the startup of motor and building hoist and halt command, in reality
It, can be real when voltage is in rated voltage or a certain fluctuation range of rated voltage on motor DC brake coil in the measurement of border
The normal work of existing motor DC brake.
A kind of motor control assembly of existing building hoist mainly realizes direct current by three phase rectifier bridge circuit
Pressure is exported to control the band-type brake of motor DC brake and declutched：The voltage of three-phase alternating current is 380V, this voltage is far above
The nominal control volatge of DC brake；Since the input terminal of building hoist electric main has isolating transformer, isolate transformation
The output of device is 220V alternating currents, thus in existing scheme, the 220V that rectifier circuit input is derived from isolating transformer output is handed over
Galvanic electricity as shown in Figure 1, being mainly a three-phase commutation bridge on rectifier circuit, is derived from the 220V exchanges of isolating transformer output
Electricity can obtain the DC voltage of about 200V, meet the nominal control volatge requirement of DC brake by rectifier bridge rectification, from
And realize the control to motor DC brake.
But this scheme can additionally increase the load of isolating transformer, be illustrated with practical situations：2 15kW electricity
Machine respectively carries a motor DC brake, and the rated voltage of motor DC brake is 195VDC, rated current 0.82A,
, it is necessary to isolating transformer volume when then power required during 2 motor brakings is P=195*0.82*2=320W, i.e. motor braking
The outer braking power that 320W is provided so that isolating transformer is in design, except meeting other building hoists auxiliary control work(
Outside power needed for energy, it is also necessary to the brake sticking brake power of 320W, thus the volume of isolating transformer certainly will be increased, add every
Design cost from transformer.
The content of the invention
An embodiment of the present invention provides a kind of motor internal contracting brake control system of building hoist, for passing through brake sticking brake electricity
The extra duty for motor DC brake or the control declutched, avoiding and increasing isolating transformer is realized on road, is reduced
The volume and design cost of isolating transformer.
In view of this, first aspect present invention provides a kind of motor internal contracting brake control system of building hoist, including：
Three-phase input end, brake sticking brake circuit, braking contactor (KM1), isolating transformer, electric control circuit, input contact
Device, the frequency converter for driving motor and motor DC brake；
The three-phase input end is connected with the brake sticking brake circuit；
The brake sticking brake circuit is connected by the braking contactor (KM1) with the motor DC brake；
The three-phase input end is connected by the isolating transformer with the electric control circuit；
The three-phase input end is connected by the input contactor with the frequency converter；
The frequency converter is connected with the electric control circuit, and the electric control circuit is connected with the brake sticking brake circuit.
Optionally：
The brake sticking brake circuit includes input and output terminal, rectification circuit and control circuit.
Optionally：
The rectification circuit includes first input end (L11), the second input terminal (L12), the first bridge arm, the second bridge arm, straight
Flow output cathode (DC+) and direct current output cathode (DC-)；
First bridge arm includes bridge arm and the first lower bridge arm on first, and bridge arm and the first lower bridge arm on described first
Between draw contact point be connected with the first input end (L11)；
Second bridge arm includes bridge arm and the second lower bridge arm on second, and bridge arm and the second lower bridge arm on described second
Between draw contact point be connected with second input terminal (L12)；
Bridge arm on described first, the first lower bridge arm, any one half bridge arm on second in bridge arm and the second lower bridge arm
Thyristor (Q3) is provided with, the thyristor (Q3) is connected with the control circuit；
The both ends of first bridge arm and the second bridge arm respectively with the direct current output anode (DC+) and direct current output
Cathode (DC-) is connected.
Optionally：
Bridge arm includes the first rectifier diode (D1) on described first, and bridge arm includes the second rectifier diode on described second
(D2), first lower bridge arm includes the 3rd rectifier diode (D3), and second lower bridge arm includes thyristor (Q3)；
The anode of first rectifier diode (D1) is connected with the cathode of the 3rd rectifier diode (D3), and described
Contact point and the first input end (L11) phase are drawn between first rectifier diode (D1) and the 3rd rectifier diode (D3)
Even；
The anode of second rectifier diode (D2) is connected with the cathode of the thyristor (Q3), and second rectification
Contact point is drawn between diode (D2) and thyristor (Q3) with second input terminal (L12) to be connected；
The cathode of first rectifier diode (D1) and the cathode of the second rectifier diode (D2) respectively with it is described straight
Output cathode (DC+) is flowed to be connected；
The anode of 3rd rectifier diode (D3) and the anode of thyristor (Q3) are born respectively with the direct current output
Pole (DC-) is connected；
The gate pole of the thyristor (Q3) is connected with the control circuit.
Optionally：
It is whole to include the first rectifier diode (D11), the second rectifier diode (D12) and the 3rd for bridge arm on described first
Flow diode (D13)；
It is whole that first lower bridge arm includes the 4th rectifier diode (D14), the 5th rectifier diode (D15) and the 6th
Flow diode (D16)；
Bridge arm includes the 7th rectifier diode (D21), the 8th rectifier diode (D22), the 9th rectification two on described second
Pole pipe (D23) and the tenth rectifier diode (D24)；
Second lower bridge arm includes thyristor (Q3)；
First rectifier diode (D11), the second rectifier diode (D12) and the 3rd rectifier diode (D13)
Anode respectively with the 4th rectifier diode (D14), the 5th rectifier diode (D15) and the 6th rectifier diode (D16)
Cathode be connected, and in first rectifier diode (D11) and the 4th rectifier diode (D14), the second rectifier diode
(D12) with the 5th rectifier diode (D15) and the 3rd rectifier diode (D13) and the 6th rectifier diode (D16) it
Between draw contact point respectively and be connected with the first input end (L11)；
The anode of 7th rectifier diode (D21) and the 8th rectifier diode (D22) is whole with the described 9th respectively
The cathode of stream diode (D23) and the tenth rectifier diode (D24) is connected；
The cathode of 7th rectifier diode (D21) and the 8th rectifier diode (D22) is defeated with the direct current respectively
Go out anode (DC+) to be connected；
The cathode of 9th rectifier diode (D23) is connected with the cathode of the tenth rectifier diode (D24)；
Anode, the anode of the tenth rectifier diode (D24) and the thyristor (Q3) of 9th rectifier diode (D23)
Cathode be connected respectively with second input terminal (L12)；
The anode of the thyristor (Q3) is connected with the direct current output cathode (DC-)；
The gate pole of the thyristor (Q3) is connected with the control circuit.
Optionally：
The control circuit includes control diode (D5), first resistor (R1), second resistance (R2), 3rd resistor
(R3), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), charging capacitor (C1), the first triode (Q1) and
Two triodes (Q2)；
The anode of the control diode (D5) is connected with the first input end (L11)；
The cathode of the control diode (D5) passes sequentially through the first resistor (R1), second resistance (R2), the 3rd electricity
Resistance (R3) and the 4th resistance (R4) are connected with second input terminal (L12)；
The second end of the second resistance (R2) respectively with the first end of the 5th resistance (R5), the 6th resistance (R6)
First end and the first end of charging capacitor (C1) are connected；
The second end of 5th resistance (R5) is connected with the collector of second triode (Q2)；
The second end of 6th resistance (R6) is connected with the emitter of first triode (Q1)；
The base stage of first triode (Q1) is connected with the collector of second triode (Q2)；
The collector of first triode (Q1) is connected with the base stage of second triode (Q2)；
The base stage of second triode (Q2) is connected with the second end of the 3rd resistor (R3)；
The emitter of second triode (Q2) is connected with the gate pole of the thyristor (Q3)；
The second end of the charging capacitor (C1) is connected with the second end of the 4th resistance (R4).
Optionally：
First triode (Q1) is PNP type triode, and second triode (Q2) is NPN type triodes.
Optionally：
The brake sticking brake circuit further includes protection circuit, and the protection circuit includes：
Lightning protection resistance (RV1) is provided between the first input end (L11) and the second input terminal (L12)；
Guarantor is provided between the first input end (L11) and first bridge arm and the control diode (D5)
Danger pipe (F1)；
Clamper is provided between the first end of the second resistance (R2) and the second end of the 4th resistance (R4)
Diode (Z1), the cathode of the clamp diode (Z1) are connected with the first end of the second resistance (R2), the clamper two
The anode of pole pipe (Z1) and the 4th resistance (R4)；
Protection diode (D6), the protection diode are provided between the gate pole and cathode of the thyristor (Q3)
(D6) anode is connected with the cathode of the thyristor (Q3), cathode and the thyristor (Q3) of the protection diode (D6)
Gate pole be connected.
Optionally：
The input and output terminal (CN1) is 6PIN terminal boards；
The first input ends (L11) of 6PIN terminal boards including the brake sticking brake circuit, the second input terminal (L12),
It direct current output anode (DC+), direct current output cathode (DC-) and is respectively used to be connected with the coil of the motor DC brake
Anode (+), cathode (-)；
The first input end (L11) and the second input terminal (L12) and the arbitrary two-phase phase in the three-phase input end
Even；
The direct current output anode (DC+) by the first contact of the braking contactor (KM1) and the second contact with
The anode (+) of the CN1 is connected；
The direct current output cathode (DC-) by the 3rd contact of the braking contactor (KM1) and the 4th contact with
The cathode (-) of the CN1 is connected.
Optionally：
Be sequentially connected in series between the anode (+) and cathode (-) output protection diode (D7), the 7th resistance (R7) and
8th resistance (R8), the cathode of the output protection diode (D7) are connected with the anode (+).
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：The motor internal contracting brake of building hoist
Control system can realize band-type brake or the pine to construction lifter motor by brake sticking brake circuit and motor DC brake
The control of lock, the input of brake sticking brake circuit are directly derived from three-phase input end and (directly take electricity from three-phase input power supply),
Output without being taken from isolating transformer, thus by brake sticking brake circuit control motor internal contracting brake when, will not increase isolation become
The extra duty of depressor reduces the volume and design cost of isolating transformer.
Description of the drawings
Fig. 1 is a kind of motor internal contracting brake control device schematic diagram of existing building hoist；
Fig. 2 is the motor internal contracting brake control system schematic diagram of building hoist in the embodiment of the present invention；
Fig. 3 is one embodiment schematic diagram of brake sticking brake circuit in the embodiment of the present invention；
Fig. 4 is another embodiment schematic diagram of brake sticking brake circuit in the embodiment of the present invention；
Fig. 5 is another embodiment schematic diagram of brake sticking brake circuit in the embodiment of the present invention；
Fig. 6 is another embodiment schematic diagram of brake sticking brake circuit in the embodiment of the present invention；
Fig. 7 is another embodiment schematic diagram of brake sticking brake circuit in the embodiment of the present invention.
Specific embodiment
An embodiment of the present invention provides a kind of motor internal contracting brake control system of building hoist, for passing through brake sticking brake electricity
Road, motor DC brake are realized to the band-type brake of motor or the control declutched, and avoid the additional negative for increasing isolating transformer
Lotus reduces the volume and design cost of isolating transformer.
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
Term " first ", " second ", " the 3rd " " in description and claims of this specification and above-mentioned attached drawing
The (if present)s such as four " are the objects for distinguishing similar, without being used to describe specific order or precedence.It should manage
The data that solution so uses can exchange in the appropriate case, so that the embodiments described herein can be with except illustrating herein
Or the order beyond the content of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit
In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production
The intrinsic other steps of product or equipment or unit.
Referring to Fig. 2, one embodiment of the motor internal contracting brake control system of building hoist includes in the embodiment of the present invention：
Three-phase input end 201, brake sticking brake circuit 202, braking contactor (KM1), isolating transformer 203, electric control circuit
204th, contactor 205 is inputted, for the frequency converter 206 of driving motor and motor DC brake 207；
Three-phase input end 201 is connected with brake sticking brake circuit 202；
Brake sticking brake circuit 202 is connected by braking contactor (KM1) with motor DC brake 207；
Three-phase input end 201 is connected by isolating transformer 203 with electric control circuit 204；
Three-phase input end 201 is connected by inputting contactor 205 with frequency converter 206；
Frequency converter 206 is connected with electric control circuit 204；
Electric control circuit 204 is connected with brake sticking brake circuit 202.
It should be noted that in practical applications, three-phase input end 201 is electrically connected for being exchanged with power grid three-phase 380V,
The input of brake sticking brake circuit 202 is derived from the arbitrary two-phase in three-phase alternating current, does not limit herein specifically.
It should be noted that in the present embodiment and following embodiment, electric control circuit 204 refers to building hoist in itself
Electric control part, there are the prior art, electric control circuit 204 is specifically connected with the control panel in frequency converter 206, electric control circuit 204
Also it is connected with the operation console of building hoist, in following embodiment, this part repeats no more.
The motor internal contracting brake control system of building hoist can pass through brake sticking brake circuit and electricity in the embodiment of the present invention
Machine DC brake is realized to the band-type brake of construction lifter motor or the control declutched, and the input of brake sticking brake circuit directly takes
From in three-phase input end (directly electricity is taken from three-phase input power supply), the output without being taken from isolating transformer, thus it is logical
When crossing brake sticking brake circuit control motor internal contracting brake, the extra duty of isolating transformer will not be increased, reduce isolating transformer
Volume and design cost.
For ease of understanding, the work to the motor internal contracting brake control system of a kind of building hoist in the embodiment of the present invention below
Principle is described：
Please continue to refer to Fig. 2, when needing to run the motor of building hoist, electric control circuit control braking contactor KM1
It is attracted, the specific can be send control instruction by frequency converter to control KM1 actuations or automatically controlled time by electric control circuit
Road directly controls KM1 actuations, at this point, brake sticking brake circuit output control voltage gives motor DC brake so that motor DC
Brake declutches, motor operation；
It is automatically controlled when situations such as main electric power down is handed in frequency converter failure, manual stoppage or input occur and needing motor stopping
Circuit control KM1 is disconnected, so that without control voltage, motor DC brake, motor on motor DC brake
It shuts down.
In practical applications, the brake sticking brake circuit in the motor internal contracting brake control system of building hoist of the embodiment of the present invention
Including input and output terminal, rectification circuit and control circuit, it is further explained below：
Referring to Fig. 3, one embodiment of brake sticking brake circuit includes in the embodiment of the present invention：
Input and output terminal (CN1), rectification circuit 301, control circuit 302；
Wherein, rectification circuit 301 includes the second input terminal of first input end (L11) (L12), the first bridge arm 3011, second
Bridge arm 3012, direct current output anode (DC+) and direct current output cathode (DC-)；
First input end (L11), the second input terminal (L12) are connected with the arbitrary two-phase in three-phase input end；
First bridge arm 3011 includes 30111 and first lower bridge arm 30112 of bridge arm on first；
Contact point is drawn on first between bridge arm 30111 and the first lower bridge arm 30112 with first input end (L11) to be connected；
Second bridge arm 3012 includes 30121 and second lower bridge arm 30122 of bridge arm on second；
Contact point is drawn on second between bridge arm 30121 and the second lower bridge arm 30122 with the second input terminal (L12) to be connected；
Bridge arm on first, the first lower bridge arm, any one half bridge arm on second in bridge arm and the second lower bridge arm are set
There is thyristor (Q3), thyristor (Q3) is connected with control circuit 302；
The both ends of first bridge arm 3011 and the second bridge arm 3012 are defeated with direct current output anode (DC+) and direct current respectively
Go out cathode (DC-) to be connected.
It should be noted that in the present embodiment and following embodiment, input and output terminal (CN1) is 6PIN terminals
Platform, first input end (L11), the second input terminal (L12), direct current output anode (DC+), direct current including brake sticking brake circuit are defeated
Go out cathode (DC-) and the anode (+) being connected respectively with the coil of DC brake, cathode (-)；
Direct current output anode (DC+) passes through the first contact of braking contactor (KM1) and the anode of the second contact and CN1
(+) is connected；
Direct current output cathode (DC-) passes through the 3rd contact of braking contactor (KM1) and the cathode of the 4th contact and CN1
(-) is connected, and is repeated no more in following embodiment.
It is understood that in practical applications, output protection two can also be in series between anode (+) and cathode (-)
Pole pipe (D7), the 7th resistance (R7) and the 8th resistance (R8), the cathode of output protection diode (D7) are connected with anode (+)；
This partial content repeats no more.
The motor internal contracting brake control system of building hoist can pass through brake sticking brake circuit and electricity in the embodiment of the present invention
Machine DC brake is realized to the band-type brake of construction lifter motor or the control declutched, and the input of brake sticking brake circuit directly takes
From in three-phase input end (directly electricity is taken from three-phase input power supply), the output without being taken from isolating transformer, thus it is logical
When crossing brake sticking brake circuit control motor internal contracting brake, the extra duty of isolating transformer will not be increased, reduce isolating transformer
Volume and design cost.
Secondly, the rectifier circuit portion of brake sticking brake circuit is single-phase rectification bridge in the present embodiment, and input takes three-phase alternating current
Arbitrary two-phase in electricity, thus compared with three phase rectifier of the prior art, saved cost.
In practical applications, the first bridge arm of rectifier circuit portion and the second bridge arm can be realized using single-phase bridge arm,
And the control to brake sticking brake circuit output voltage size is realized by control circuit, specifically：
Referring to Fig. 4, another embodiment of brake sticking brake circuit includes in the embodiment of the present invention：
Input and output terminal (CN1), rectification circuit 401, control circuit 402；
Rectification circuit 401 includes the second input terminal of first input end (L11) (L12), the first bridge arm 4011, the second bridge arm
4012nd, direct current output anode (DC+) and direct current output cathode (DC-)；
First bridge arm 4011 includes 40111 and first lower bridge arm 40112 of bridge arm on first；
Contact point is drawn on first between bridge arm 40111 and the first lower bridge arm 40112 with first input end (L11) to be connected；
Second bridge arm 4012 includes 40121 and second lower bridge arm 40122 of bridge arm on second；
Contact point is drawn on second between bridge arm 40121 and the second lower bridge arm 40122 with the second input terminal (L12) to be connected；
Bridge arm on first, the first lower bridge arm, any one half bridge arm on second in bridge arm and the second lower bridge arm are set
There is thyristor (Q3), thyristor (Q3) is connected with control circuit 302；
The both ends of first bridge arm 4011 and the second bridge arm 4012 are defeated with direct current output anode (DC+) and direct current respectively
Go out cathode (DC-) to be connected；
Wherein, bridge arm 40111 includes the first rectifier diode (D1) on first, and it is whole to include second for bridge arm 40121 on second
Diode (D2) is flowed, the first lower bridge arm 40112 includes the 3rd rectifier diode (D3), and the second lower bridge arm 40122 includes thyristor
(Q3)；
The anode of first rectifier diode (D1) is connected with the cathode of the 3rd rectifier diode (D3), and two pole of the first rectification
Contact point is drawn between pipe (D1) and the 3rd rectifier diode (D3) with first input end (L11) to be connected；
The anode of second rectifier diode (D2) is connected with the cathode of thyristor (Q3), and the second rectifier diode (D2) with
Contact point is drawn between thyristor (Q3) with the second input terminal (L12) to be connected；
The cathode of first rectifier diode (D1) and the cathode of the second rectifier diode (D2) respectively with direct current output just
Pole (DC+) is connected；
The anode of 3rd rectifier diode (D3) and the anode of thyristor (Q3) respectively with direct current output cathode (DC-) phase
Even；
The gate pole of thyristor (Q3) is connected with control circuit.
The motor internal contracting brake control system of building hoist can pass through brake sticking brake circuit and electricity in the embodiment of the present invention
Machine DC brake is realized to the band-type brake of construction lifter motor or the control declutched, and the input of brake sticking brake circuit directly takes
From the arbitrary two-phase in three-phase input end, the output without being taken from isolating transformer, thus controlled by brake sticking brake circuit
During motor internal contracting brake, the extra duty of isolating transformer will not be increased, reduce the volume and design cost of isolating transformer.
Secondly, the rectifier circuit portion of brake sticking brake circuit is single-phase rectification bridge in the present embodiment, and input takes three-phase alternating current
Arbitrary two-phase in electricity, thus compared with three phase rectifier of the prior art, saved cost.
In practical applications, the control to the angle of flow of thyristor (Q3) can be realized by control circuit, so as to fulfill
Control to brake sticking brake circuit output voltage, specifically：
Referring to Fig. 5, another embodiment of brake sticking brake circuit includes in the embodiment of the present invention：
Input and output terminal (CN1), first input end (L11), the second input terminal (L12), the first rectifier diode (D1),
Second rectifier diode (D2), the 3rd rectifier diode (D3), thyristor (Q3), direct current output anode (DC+), direct current output are born
Pole (DC-), control diode (D5), first resistor (R1), second resistance (R2), 3rd resistor (R3), the 4th resistance (R4),
5th resistance (R5), the 6th resistance (R6), charging capacitor (C1), the first triode (Q1) and the second triode (Q2)；
Wherein, the anode of the first rectifier diode (D1) is connected with the cathode of the 3rd rectifier diode (D3), and first is whole
Contact point is drawn between stream diode (D1) and the 3rd rectifier diode (D3) with first input end (L11) to be connected；
The anode of second rectifier diode (D2) is connected with the cathode of thyristor (Q3), and the second rectifier diode (D2) with
Contact point is drawn between thyristor (Q3) with the second input terminal (L12) to be connected；
The cathode of first rectifier diode (D1) and the cathode of the second rectifier diode (D2) respectively with direct current output just
Pole (DC+) is connected；
The anode of 3rd rectifier diode (D3) and the anode of thyristor (Q3) respectively with direct current output cathode (DC-) phase
Even；
The anode of control diode (D5) is connected with first input end (L11)；
Control diode (D5) cathode pass sequentially through first resistor (R1), second resistance (R2), 3rd resistor (R3) with
And the 4th resistance (R4) be connected with the second input terminal (L12)；
The second end of second resistance (R2) respectively with the first end of the 5th resistance (R5), the first end of the 6th resistance (R6)
And the first end of charging capacitor (C1) is connected；
The second end of 5th resistance (R5) is connected with the collector of the second triode (Q2)；
The second end of 6th resistance (R6) is connected with the emitter of the first triode (Q1)；
The base stage of first triode (Q1) is connected with the collector of the second triode (Q2)；
The collector of first triode (Q1) is connected with the base stage of the second triode (Q2)；
The base stage of second triode (Q2) is connected with the second end of 3rd resistor (R3)；
The emitter of second triode (Q2) is connected with the gate pole of thyristor (Q3)；
The second end of charging capacitor (C1) is connected with the second end of the 4th resistance (R4).
In the present embodiment, the first triode (Q1) is PNP type triode, and the second triode (Q2) is NPN type triode.
It should be noted that in the present embodiment and in subsequent embodiment, thyristor (Q3) can be arranged at any one
The upper bridge arm or lower bridge arm of a bridge arm for example, bridge arm on the first of the first bridge arm can be arranged at, can also be arranged at the second bridge
The second lower bridge arm (as shown in this embodiment) of arm, does not limit specifically, will not be described in great detail in following embodiment herein.
The motor internal contracting brake control system of building hoist can pass through brake sticking brake circuit and electricity in the embodiment of the present invention
Machine DC brake is realized to the band-type brake of construction lifter motor or the control declutched, and the input of brake sticking brake circuit directly takes
From the arbitrary two-phase in three-phase input end, the output without being taken from isolating transformer, thus controlled by brake sticking brake circuit
During motor internal contracting brake, the extra duty of isolating transformer will not be increased, reduce the volume and design cost of isolating transformer.
Secondly, the rectifier circuit portion of brake sticking brake circuit is single-phase rectification bridge in the present embodiment, and input takes three-phase alternating current
Arbitrary two-phase in electricity, thus compared with three phase rectifier of the prior art, saved cost.
In practical applications, going back equipment in order to protect the component in brake sticking brake circuit, in brake sticking brake circuit has guarantor
Protection circuit, specifically：
Refer to Fig. 6, another embodiment of brake sticking brake circuit includes in the embodiment of the present invention：
Input and output terminal (CN1), first input end (L11), the second input terminal (L12), the first rectifier diode (D1),
Second rectifier diode (D2), the 3rd rectifier diode (D3), thyristor (Q3), direct current output anode (DC+), direct current output are born
Pole (DC-), control diode (D5), first resistor (R1), second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the
Five resistance (R5), the 6th resistance (R6), charging capacitor (C1), the first triode (Q1), the second triode (Q2), lightning protection resistance
(RV1), protective tube (F1), clamp diode (Z1) and protection diode (D6)；
Wherein, the anode of the first rectifier diode (D1) is connected with the cathode of the 3rd rectifier diode (D3), and first is whole
Contact point is drawn between stream diode (D1) and the 3rd rectifier diode (D3) with first input end (L11) to be connected；
The anode of second rectifier diode (D2) is connected with the cathode of thyristor (Q3), and the second rectifier diode (D2) with
Contact point is drawn between thyristor (Q3) with the second input terminal (L12) to be connected；
The cathode of first rectifier diode (D1) and the cathode of the second rectifier diode (D2) respectively with direct current output just
Pole (DC+) is connected；
The anode of 3rd rectifier diode (D3) and the anode of thyristor (Q3) respectively with direct current output cathode (DC-) phase
Even；
The anode of control diode (D5) is connected with first input end (L11)；
Control diode (D5) cathode pass sequentially through first resistor (R1), second resistance (R2), 3rd resistor (R3) with
And the 4th resistance (R4) be connected with the second input terminal (L12)；
The second end of second resistance (R2) respectively with the first end of the 5th resistance (R5), the first end of the 6th resistance (R6)
And the first end of charging capacitor (C1) is connected；
The second end of 5th resistance (R5) is connected with the collector of the second triode (Q2)；
The second end of 6th resistance (R6) is connected with the emitter of the first triode (Q1)；
The base stage of first triode (Q1) is connected with the collector of the second triode (Q2)；
The collector of first triode (Q1) is connected with the base stage of the second triode (Q2)；
The base stage of second triode (Q2) is connected with the second end of 3rd resistor (R3)；
The emitter of second triode (Q2) is connected with the gate pole of thyristor (Q3)；
The second end of charging capacitor (C1) is connected with the second end of the 4th resistance (R4)；
Lightning protection resistance (RV1) is provided between first input end (L11) and the second input terminal (L12)；
Protective tube (F1) is provided between first input end (L11) and the first bridge arm and control diode (D5)；
Clamp diode is provided between the first end of second resistance (R2) and the second end of the 4th resistance (R4)
(Z1), the cathode of clamp diode (Z1) is connected with the first end of second resistance (R2), the anode of clamp diode (Z1) and institute
State the 4th resistance (R4)；
Protection diode (D6), the anode of protection diode (D6) are provided between the gate pole and cathode of thyristor (Q3)
It is connected with the cathode of thyristor (Q3), the cathode of protection diode (D6) is connected with the gate pole of thyristor (Q3).
In the present embodiment, the first triode (Q1) is PNP type triode, and the second triode (Q2) is NPN type triode.
The motor internal contracting brake control system of building hoist can pass through brake sticking brake circuit and electricity in the embodiment of the present invention
Machine DC brake is realized to the band-type brake of construction lifter motor or the control declutched, and the input of brake sticking brake circuit directly takes
From the arbitrary two-phase in three-phase input end, the output without being taken from isolating transformer, thus controlled by brake sticking brake circuit
During motor internal contracting brake, the extra duty of isolating transformer will not be increased, reduce the volume and design cost of isolating transformer.
Secondly, the rectifier circuit portion of brake sticking brake circuit is single-phase rectification bridge in the present embodiment, and input takes three-phase alternating current
Arbitrary two-phase in electricity, thus compared with three phase rectifier of the prior art, saved cost.
For ease of understanding, the operation principle of brake sticking brake circuit in the embodiment of the present invention is described below, specifically：
Please continue to refer to Fig. 6, brake sticking brake circuit is realized by rectifier bridge, rectifier bridge by 3 diodes (D1, D2,
D3) thyristor (Q3) forms, and during positive half cycle, D2 and D3 form a half-bridge.During negative half period, D1 and Q3 form a half-bridge,
The angle of flow of middle thyristor is controlled by peripheral circuit.C1 is charging capacitor, and D5, R1~R2 are the charging circuits of C1, on C1
Voltage is added on R3 and R4, when the voltage got on R3 is more than 0.7V, Q2 conductings.When Q2 is turned on, there is voltage on R5, and
And will be turned on more than 0.7V, Q1, the conducting of Q1 can be such that the base current of Q2 persistently increases, it is ensured that Q2 is operated in saturation region.
So, as long as after thyristor conducting, the angle of flow can be kept fixed.The effect of Z1 is：When input voltage is excessive, Z1 will
The voltage clamp at R2, R3, R4 both ends will not change too big at certain value, guarantee turn on thyristors angle with the variation of input voltage.
D6 is connected in parallel between the G and K of thyristor Q3, is shielded to thyristor.F1 is protective tube, to circuit particularly two pole of rectification
Pipe shields.RV1 is varistor, plays lightning protection.
In practical applications, in order to increase the pressure-resistant and overcurrent grade of rectification circuit bridge arm, the bridge in rectification circuit
Arm can also use the single phase rectifier circuit in rectified three-phase circuit replacement previous embodiment, specifically：
Refer to Fig. 7, another embodiment of brake sticking brake circuit includes in the embodiment of the present invention：
Input and output terminal (CN1), first input end (L11), the second input terminal (L12), the first rectifier diode
(D11), the second rectifier diode (D12), the 3rd rectifier diode (D13), the 4th rectifier diode (D14), the 5th rectification two
It is pole pipe (D15), the 6th rectifier diode (D16), the 7th rectifier diode (D21), the 8th rectifier diode (D22), the 9th whole
Flow diode (D23), the tenth rectifier diode (D24), thyristor (Q3), direct current output anode (DC+), direct current output cathode
(DC-), diode (D5), first resistor (R1), second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the 5th are controlled
Resistance (R5), the 6th resistance (R6), charging capacitor (C1), the first triode (Q1), the second triode (Q2), lightning protection resistance
(RV1), protective tube (F1), clamp diode (Z1) and protection diode (D6)；
Wherein, the first rectifier diode (D11), the second rectifier diode (D12) and the 3rd rectifier diode (D13)
Anode the moon with the 4th rectifier diode (D14), the 5th rectifier diode (D15) and the 6th rectifier diode (D16) respectively
Extremely it is connected, and in the first rectifier diode (D11) and the 4th rectifier diode (D14), the second rectifier diode (D12) and the 5th
Contact point is drawn respectively between rectifier diode (D15) and the 3rd rectifier diode (D13) and the 6th rectifier diode (D16)
It is connected with first input end (L11)；
The anode of 7th rectifier diode (D21) and the 8th rectifier diode (D22) respectively with the 9th rectifier diode
(D23) and the cathode of the tenth rectifier diode (D24) is connected；
The cathode of 7th rectifier diode (D21) and the 8th rectifier diode (D22) respectively with direct current output anode (DC
+) be connected；
The cathode of 9th rectifier diode (D23) is connected with the cathode of the tenth rectifier diode (D24)；
The anode of 9th rectifier diode (D23) and the tenth rectifier diode (D24) respectively with the second input terminal (L12)
It is connected；
The cathode of thyristor (Q3) is connected with the second input terminal (L12)；
The anode of thyristor (Q3) is connected with direct current output cathode (DC-)；
The anode of control diode (D5) is connected with first input end (L11)；
Control diode (D5) cathode pass sequentially through first resistor (R1), second resistance (R2), 3rd resistor (R3) with
And the 4th resistance (R4) be connected with the second input terminal (L12)；
The second end of second resistance (R2) respectively with the first end of the 5th resistance (R5), the first end of the 6th resistance (R6)
And the first end of charging capacitor (C1) is connected；
The second end of 5th resistance (R5) is connected with the collector of the second triode (Q2)；
The second end of 6th resistance (R6) is connected with the emitter of the first triode (Q1)；
The base stage of first triode (Q1) is connected with the collector of the second triode (Q2)；
The collector of first triode (Q1) is connected with the base stage of the second triode (Q2)；
The base stage of second triode (Q2) is connected with the second end of 3rd resistor (R3)；
The emitter of second triode (Q2) is connected with the gate pole of thyristor (Q3)；
The second end of charging capacitor (C1) is connected with the second end of the 4th resistance (R4)；
Lightning protection resistance (RV1) is provided between first input end (L11) and the second input terminal (L12)；
Protective tube (F1) is provided between first input end (L11) and the first bridge arm and control diode (D5)；
Clamp diode is provided between the first end of second resistance (R2) and the second end of the 4th resistance (R4)
(Z1), the cathode of clamp diode (Z1) is connected with the first end of second resistance (R2), the anode of clamp diode (Z1) and institute
State the 4th resistance (R4)；
Protection diode (D6), the anode of protection diode (D6) are provided between the gate pole and cathode of thyristor (Q3)
It is connected with the cathode of thyristor (Q3), the cathode of protection diode (D6) is connected with the gate pole of thyristor (Q3).
In the present embodiment, the first triode (Q1) is PNP type triode, and the second triode (Q2) is NPN type triode.
The motor internal contracting brake control system of building hoist can pass through brake sticking brake circuit and electricity in the embodiment of the present invention
Machine DC brake is realized to the band-type brake of construction lifter motor or the control declutched, and the input of brake sticking brake circuit directly takes
From the arbitrary two-phase in three-phase input end, the output without being taken from isolating transformer, thus controlled by brake sticking brake circuit
During motor internal contracting brake, the extra duty of isolating transformer will not be increased, reduce the volume and design cost of isolating transformer.
Secondly, the rectifier circuit portion of brake sticking brake circuit is single-phase rectification bridge in the present embodiment, and input takes three-phase alternating current
Arbitrary two-phase in electricity, thus compared with three phase rectifier of the prior art, saved cost.
Again, in the embodiment of the present invention, single-phase rectification bridge first on the three-phase that is made of three diodes in parallel of bridge arm
Rectification circuit substitutes the D1 of single phase rectifier circuit in previous embodiment, and three diodes in parallel replacement of the first lower bridge arm is single-phase whole
The D3 of current circuit, four diodes two of bridge arm and two strings, increase pressure-resistant and overcurrent grade on second.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit may be referred to the corresponding process in preceding method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
Division is only a kind of division of logic function, can there is other dividing mode, such as multiple units or component in actual implementation
It may be combined or can be integrated into another system or some features can be ignored or does not perform.It is another, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or carry out equivalent substitution to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is not made to depart from the spirit and scope of various embodiments of the present invention technical solution.
Claims (7)
1. a kind of motor internal contracting brake control system of building hoist, which is characterized in that including：
Three-phase input end, brake sticking brake circuit, braking contactor (KM1), isolating transformer, electric control circuit, input contactor, use
In the frequency converter of driving motor and motor DC brake, the brake sticking brake circuit includes input and output terminal, rectified current
Road and control circuit, the rectification circuit include first input end (L11), the second input terminal (L12), the first bridge arm, second
Bridge arm, direct current output anode (DC+) and direct current output cathode (DC-), the control circuit include control diode (D5), the
One resistance (R1), second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6),
Charging capacitor (C1), the first triode (Q1) and the second triode (Q2)；
Wherein, the first input end (L11) and the second input terminal (L12) and the arbitrary two-phase phase in the three-phase input end
Even；First bridge arm includes bridge arm and the first lower bridge arm on first, and on described first between bridge arm and the first lower bridge arm
Contact point is drawn with the first input end (L11) to be connected；Second bridge arm includes bridge arm and the second lower bridge arm on second,
And contact point is drawn between bridge arm and the second lower bridge arm on described second and be connected with second input terminal (L12)；Described first
Upper bridge arm, the first lower bridge arm, any one half bridge arm on second in bridge arm and the second lower bridge arm are provided with thyristor (Q3),
The thyristor (Q3) is connected with the control circuit；The both ends of first bridge arm and the second bridge arm respectively with the direct current
Output cathode (DC+) and direct current output cathode (DC-) are connected；
The anode of the control diode (D5) is connected with the first input end (L11)；The moon of the control diode (D5)
Pole passes sequentially through the first resistor (R1), second resistance (R2), 3rd resistor (R3) and the 4th resistance (R4) and described the
Two input terminals (L12) are connected；The second end of the second resistance (R2) respectively with the first end of the 5th resistance (R5), the 6th
The first end of resistance (R6) and the first end of charging capacitor (C1) are connected；The second end of 5th resistance (R5) and described the
The collector of two triodes (Q2) is connected；The second end of 6th resistance (R6) and the emitter of first triode (Q1)
It is connected；The base stage of first triode (Q1) is connected with the collector of second triode (Q2)；First triode
(Q1) collector is connected with the base stage of second triode (Q2)；The base stage and the described 3rd of second triode (Q2)
The second end of resistance (R3) is connected；The emitter of second triode (Q2) is connected with the gate pole of the thyristor (Q3)；Institute
The second end for stating charging capacitor (C1) is connected with the second end of the 4th resistance (R4)；
The direct current output anode (DC+) and direct current output cathode (DC-) pass through the braking contactor (KM1) and the electricity
Machine DC brake is connected；
The three-phase input end is connected by the isolating transformer with the electric control circuit；
The three-phase input end is connected by the input contactor with the frequency converter；
The frequency converter is connected with the electric control circuit.
2. the motor internal contracting brake control system of building hoist according to claim 1, which is characterized in that bridge on described first
Arm includes the first rectifier diode (D1), and bridge arm includes the second rectifier diode (D2), first lower bridge arm on described second
Including the 3rd rectifier diode (D3), second lower bridge arm includes thyristor (Q3)；
The anode of first rectifier diode (D1) is connected with the cathode of the 3rd rectifier diode (D3), and described first
Contact point is drawn between rectifier diode (D1) and the 3rd rectifier diode (D3) with the first input end (L11) to be connected；
The anode of second rectifier diode (D2) is connected with the cathode of the thyristor (Q3), and two pole of the second rectification
Contact point is drawn between pipe (D2) and thyristor (Q3) with second input terminal (L12) to be connected；
The cathode of first rectifier diode (D1) and the cathode of the second rectifier diode (D2) are defeated with the direct current respectively
Go out anode (DC+) to be connected；
The anode of 3rd rectifier diode (D3) and the anode of thyristor (Q3) respectively with the direct current output cathode
(DC-) it is connected；
The gate pole of the thyristor (Q3) is connected with the control circuit.
3. the motor internal contracting brake control system of building hoist according to claim 2, which is characterized in that bridge on described first
Arm includes the first rectifier diode (D11), the second rectifier diode (D12) and the 3rd rectifier diode (D13)；
First lower bridge arm includes the 4th rectifier diode (D14), the 5th rectifier diode (D15) and two pole of the 6th rectification
It manages (D16)；
Bridge arm includes the 7th rectifier diode (D21), the 8th rectifier diode (D22), the 9th rectifier diode on described second
(D23) and the tenth rectifier diode (D24)；
Second lower bridge arm includes thyristor (Q3)；
The anode of first rectifier diode (D11), the second rectifier diode (D12) and the 3rd rectifier diode (D13)
Respectively with the moon of the 4th rectifier diode (D14), the 5th rectifier diode (D15) and the 6th rectifier diode (D16)
Extremely be connected, and first rectifier diode (D11) and the 4th rectifier diode (D14), the second rectifier diode (D12) with
Draw respectively between 5th rectifier diode (D15) and the 3rd rectifier diode (D13) and the 6th rectifier diode (D16)
Go out contact point with the first input end (L11) to be connected；
The anode of 7th rectifier diode (D21) and the 8th rectifier diode (D22) respectively with the 9th rectification two
The cathode of pole pipe (D23) and the tenth rectifier diode (D24) is connected；
The cathode of 7th rectifier diode (D21) and the 8th rectifier diode (D22) respectively with the direct current output just
Pole (DC+) is connected；
The cathode of 9th rectifier diode (D23) is connected with the cathode of the tenth rectifier diode (D24)；
Anode, the anode of the tenth rectifier diode (D24) and the moon of thyristor (Q3) of 9th rectifier diode (D23)
Pole is connected respectively with second input terminal (L12)；
The anode of the thyristor (Q3) is connected with the direct current output cathode (DC-)；
The gate pole of the thyristor (Q3) is connected with the control circuit.
4. the motor internal contracting brake control system of building hoist according to claim 3, which is characterized in that the one or three pole
It is PNP type triode to manage (Q1), and second triode (Q2) is NPN type triode.
5. the motor internal contracting brake control system of building hoist according to claim 1, which is characterized in that the brake sticking brake
Circuit further includes protection circuit, and the protection circuit includes：
Lightning protection resistance (RV1) is provided between the first input end (L11) and the second input terminal (L12)；
Protective tube is provided between the first input end (L11) and first bridge arm and the control diode (D5)
(F1)；
Two pole of clamper is provided between the first end of the second resistance (R2) and the second end of the 4th resistance (R4)
It manages (Z1), the cathode of the clamp diode (Z1) is connected with the first end of the second resistance (R2), the clamp diode
(Z1) anode and the 4th resistance (R4)；
Protection diode (D6) is provided between the gate pole and cathode of the thyristor (Q3), the protection diode (D6)
Anode is connected with the cathode of the thyristor (Q3), the cathode of the protection diode (D6) and the gate pole of the thyristor (Q3)
It is connected.
6. the motor internal contracting brake control system of the building hoist according to any one of claim 2 to 5, which is characterized in that
The input and output terminal (CN1) is 6PIN terminal boards；
The 6PIN terminal boards include first input end (L11), the second input terminal (L12), the direct current of the brake sticking brake circuit
It output cathode (DC+), direct current output cathode (DC-) and is respectively used to be connected just with the coil of the motor DC brake
Pole (+), cathode (-)；
The direct current output anode (DC+) by the first contact of the braking contactor (KM1) and the second contact with it is described
The anode (+) of input and output terminal (CN1) is connected；
The direct current output cathode (DC-) by the 3rd contact of the braking contactor (KM1) and the 4th contact with it is described
The cathode (-) of input and output terminal (CN1) is connected.
7. the motor internal contracting brake control system of building hoist according to claim 6, which is characterized in that the anode (+)
Output protection diode (D7), the 7th resistance (R7) and the 8th resistance (R8) have been sequentially connected in series between cathode (-), it is described defeated
The cathode for going out protection diode (D7) is connected with the anode (+).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148668.5A CN104753403B (en) | 2015-03-31 | 2015-03-31 | A kind of motor internal contracting brake control system of building hoist |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148668.5A CN104753403B (en) | 2015-03-31 | 2015-03-31 | A kind of motor internal contracting brake control system of building hoist |
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| CN104753403A CN104753403A (en) | 2015-07-01 |
| CN104753403B true CN104753403B (en) | 2018-05-22 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112234584A (en) * | 2020-09-17 | 2021-01-15 | 邯郸钢铁集团有限责任公司 | Improved voltage type frequency converter brake circuit protection method |
| CN113472224A (en) * | 2021-05-25 | 2021-10-01 | 长春汇通光电技术有限公司 | Elevator band-type brake power supply, elevator control system and elevator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3656039A (en) * | 1970-09-21 | 1972-04-11 | Gen Electric | Direct current control circuit |
| US3750002A (en) * | 1971-09-17 | 1973-07-31 | Bosch Gmbh Robert | Battery connected dynamo electric machine system |
| ES408105A1 (en) * | 1971-10-29 | 1975-11-01 | Hitachi Ltd | An apparatus for controlling a continuous current engine with serial windings. (Machine-translation by Google Translate, not legally binding) |
| CN85103691A (en) * | 1985-05-13 | 1986-11-12 | 龙飞 | Thyristor gating circuit |
| CN1641994A (en) * | 2004-12-31 | 2005-07-20 | 中原工学院 | Low-voltage low-frequency transformer of high-voltage wound asynchronous motor for drining mine hoister |
| CN201130923Y (en) * | 2007-11-23 | 2008-10-08 | 广州市京龙工程机械有限公司 | Frequency speed control system |
| CN201315552Y (en) * | 2008-11-17 | 2009-09-23 | 鞍钢股份有限公司 | Control circuit for pressing internal contracting brake |
| CN204138062U (en) * | 2014-10-15 | 2015-02-04 | 重庆红岩建设机械制造有限责任公司 | A kind of variable frequency lifting device |
| CN104379479A (en) * | 2012-05-31 | 2015-02-25 | 通力股份公司 | Brake controller, elevator system and a method for performing an emergency stop with an elevator hoisting machine driven with a frequency converter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205678U (en) * | 1987-03-26 | 1988-06-22 | 蔡多福 | Detector for operating control box of generator |
| CN87207012U (en) * | 1987-04-29 | 1987-12-30 | 周关荣 | Electrosparking impactor |
| CN1063979A (en) * | 1991-02-08 | 1992-08-26 | 李富顺 | Silicon-controlled large-power ac-dc power converting circuit |
| CN1067770A (en) * | 1991-06-06 | 1993-01-06 | 龚秋声 | Rectification of electric capacity unsteady flow and controlled rectification circuit |
-
2015
- 2015-03-31 CN CN201510148668.5A patent/CN104753403B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3656039A (en) * | 1970-09-21 | 1972-04-11 | Gen Electric | Direct current control circuit |
| US3750002A (en) * | 1971-09-17 | 1973-07-31 | Bosch Gmbh Robert | Battery connected dynamo electric machine system |
| ES408105A1 (en) * | 1971-10-29 | 1975-11-01 | Hitachi Ltd | An apparatus for controlling a continuous current engine with serial windings. (Machine-translation by Google Translate, not legally binding) |
| CN85103691A (en) * | 1985-05-13 | 1986-11-12 | 龙飞 | Thyristor gating circuit |
| CN1641994A (en) * | 2004-12-31 | 2005-07-20 | 中原工学院 | Low-voltage low-frequency transformer of high-voltage wound asynchronous motor for drining mine hoister |
| CN201130923Y (en) * | 2007-11-23 | 2008-10-08 | 广州市京龙工程机械有限公司 | Frequency speed control system |
| CN201315552Y (en) * | 2008-11-17 | 2009-09-23 | 鞍钢股份有限公司 | Control circuit for pressing internal contracting brake |
| CN104379479A (en) * | 2012-05-31 | 2015-02-25 | 通力股份公司 | Brake controller, elevator system and a method for performing an emergency stop with an elevator hoisting machine driven with a frequency converter |
| CN204138062U (en) * | 2014-10-15 | 2015-02-04 | 重庆红岩建设机械制造有限责任公司 | A kind of variable frequency lifting device |
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|---|---|
| CN104753403A (en) | 2015-07-01 |
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