CN210505179U - Independent star sealing control circuit for restraining vehicle sliding - Google Patents
Independent star sealing control circuit for restraining vehicle sliding Download PDFInfo
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- CN210505179U CN210505179U CN201921081783.5U CN201921081783U CN210505179U CN 210505179 U CN210505179 U CN 210505179U CN 201921081783 U CN201921081783 U CN 201921081783U CN 210505179 U CN210505179 U CN 210505179U
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Abstract
An independent star-sealing control circuit for inhibiting sliding of a car belongs to the field of forced drive type elevator control. This restrain independent star control circuit that seals of swift current car, set up solitary electron and seal star contactor between operation contactor and the elevator driving motor that drives by force, utilize three-phase rectifier bridge circuit, seal star relay KFX contact control three-phase rectifier bridge's work through the electron, the original mechanical type of system seals the star contactor and moves and realize quick star operation before, avoid the elevator longer swift current car distance to appear, guarantee the operation of forced drive elevator safety and stability, can effectively reduce the incident, guarantee the safety of taking advantage of the terraced people.
Description
Technical Field
The utility model relates to a force drive formula elevator control field, in particular to restrain independent star control circuit that seals of swift current car.
Background
The forced drive type elevator (forced drive elevator) is different from the traditional traction type elevator, the counterweight is not arranged, one end of a steel wire rope is connected with a motor winding drum, the other end of the steel wire rope is connected with a car, the winding drum is rotated after the motor is electrified, then the steel wire rope is rolled, and the car is forcibly lifted or descended.
In the existing forced drive type elevator, most of elevator control cabinets are extended to use a traction type elevator control cabinet, and the control logic of the elevator during normal parking still uses the traction type elevator control logic, namely zero speed, brake lowering, torque output stopping, voltage output stopping and star sealing; the control logic for abnormal parking still uses the stop voltage output, and simultaneously performs brake-off and then star-closing. Whether the elevator is normally stopped or abnormally stopped, the elevator car can be in an out-of-control state within hundreds of milliseconds from the output of the stop voltage to the real action of the band-type brake. For a traction elevator with a counterweight, in the out-of-control process, the counterweight can play a role of reverse resistance, so that the car can slowly slide, and the sliding distance is short; but for a strong drive elevator without counterweight the car will move freely falling with gravitational acceleration. In the period of hundreds of milliseconds, the elevator has a longer sliding distance, the elevator speed can be rapidly increased to reach the maximum rated speed which is several times of the maximum rated speed of a forced-drive elevator specified by the national standard, and the overhigh elevator speed easily causes the actions of a speed governor and a safety gear, so people trapping accidents occur and rescue is difficult.
Disclosure of Invention
The utility model aims at providing an it seals star control circuit independently to restrain swift current car to exist not enough to prior art.
The utility model adopts the technical proposal that: a star-sealing control circuit for inhibiting sliding is applied to a strong-drive elevator control system and comprises a strong-drive elevator driving motor, a traction type elevator controller and an operation contactor, wherein the output end of the traction type elevator controller is connected with a coil of the operation contactor so as to control the coil of the operation contactor to be electrified or deenergized; the traction type elevator controller is characterized by further comprising an independent star sealing loop, the independent star sealing loop is connected between the normally open contact of the operation contactor and the forced drive elevator driving motor, and the independent star sealing loop and the normally open contact of the operation contactor and the traction type elevator controller form a series loop.
In the scheme, the independent star sealing loop comprises a star sealing relay, a transistor, a three-phase full-bridge rectification circuit, a first resistor and a second resistor, one end of a coil of the star sealing relay is connected with a 24V power supply, and the other end of the coil of the star sealing relay is connected with an electronic star sealing control end of a traction type elevator controller; normally open contact one end of sealing star relay is connected with +15V power, the normally open contact other end of sealing star relay is connected with the forward input of amplifier, the reverse input of amplifier is connected with +15V, connect first resistance between the forward input of amplifier and the output of amplifier, the output of amplifier is connected with insulated gate bipolar transistor's grid, insulated gate bipolar transistor's drain electrode is connected with second resistance one end, the second resistance other end is connected with three-phase full-bridge rectifier circuit's common cathode group output, insulated gate bipolar transistor's source electrode is connected with three-phase full-bridge rectifier circuit's common anode group output, three-phase full-bridge rectifier circuit's three-phase center is taken a percentage and is linked to each other with strong motor three-phase winding that drives respectively.
In the scheme, a mechanical star sealing contactor is further connected between the operation contactor and the independent electronic star sealing loop.
In the scheme, one end of the mechanical star-sealing contactor coil is connected with one end of the coil of the operation contactor and is connected with one end of a power supply, the other end of the mechanical star-sealing contactor coil is respectively connected with the control signal output end of the traction type elevator controller and one end of the auxiliary contact of the operation contactor, and the other end of the auxiliary contact of the operation contactor is connected with the other output end of the traction type elevator controller and the other end of the power supply.
The utility model has the advantages that: this restrain independent star control circuit that seals of swift current car, set up solitary electron and seal star contactor between operation contactor and the elevator driving motor that drives by force, utilize three-phase rectifier bridge circuit, seal star relay KFX contact control three-phase rectifier bridge's work through the electron, the original mechanical type of system seals the star contactor and moves and realize quick star operation before, avoid the elevator longer swift current car distance to appear, guarantee the operation of forced drive elevator safety and stability, can effectively reduce the incident, guarantee the safety of taking advantage of the terraced people.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a strong-drive elevator control system for inhibiting vehicle sliding through electronic star sealing in the embodiment of the utility model;
FIG. 2 is a schematic circuit diagram of a strong-drive elevator control system for inhibiting vehicle slipping through electronic star sealing in the embodiment of the present invention;
the numbers in the figure illustrate the following: the system comprises a traction type elevator controller 1, an operation contactor 2, a mechanical star sealing contactor 3, an independent electronic star sealing loop 4 and a forced drive elevator driving motor 5.
The symbols of the electrical appliances in the figure are explained as follows: l1, L2, L3 and N are three-phase four-wire main power supplies, M is a strong drive elevator driving motor, K1 is an operation contactor, K2 is a mechanical star-sealing contactor, K3 is a band-type brake contactor, KFX is a star-sealing relay, SMQ and XMQ are upper and lower leveling switches respectively, S1-S4 are end station switches, S5 is a fire switch, S6 is an electric lock switch, DA 1-DA 6 are diodes, U1A is one unit of an integrated operational amplifier chip, and Q1 is an Insulated Gate Bipolar Transistor (IGBT).
Detailed Description
The above objects, features and advantages of the present invention will be more clearly understood and the present invention will be explained in more detail with reference to the accompanying drawings 1-2 and the detailed description thereof.
The model of a strong drive elevator driving motor 5 adopted in the embodiment is VT32M2-4-CJL, the model of a traction type elevator controller 1 is BL6-UO4007, the model of an operation contactor 2 is SC-E05PAC220V, the model of a mechanical star sealing contactor 3 is CJX2-25008, the model of an internal contracting brake contactor K3 is SC-E02PAC220V, the model of an emergency stop contactor K4 is EB6-ES542, the model of a door interlocking contactor K5 is SC-E02PAC110, the model of a star sealing relay 4 is HFA2, the models of rectifier diodes DA 1-DA 6 are MUR15120F, the model of an integrated operational amplifier chip is TL084, and the model of an IGBT is MM40G3T 120B.
The star circuit that seals of suppression swift current car that this embodiment adopted is applied to and drives elevator control system by force, drives elevator driving motor M, tows formula elevator controller 1, operation contactor K1 and band-type brake contactor K3, electron star relay KFX by force. The traction type elevator controller 1 is powered by a three-phase four-wire system power supply, an operation contactor K1 and a control signal of an electronic star sealing relay KFX are output by the traction type elevator controller 1, and the operation contactor K1 and the electronic star sealing relay KFX are controlled to be switched on and off through power on and power off of coils of the traction type elevator controller.
Referring to fig. 2, the independent electronic star sealing loop in this embodiment: the Y11 pin of the traction elevator controller 1 is connected with the coil A1 end of the electronic star-sealing relay KFX, and the other end A2 of the coil KFX is connected with a +24V power supply. A full bridge circuit is formed by rectifier diodes DA 1-DA 6, cathodes of the rectifier diodes DA1, DA13 and DA5 are connected with one another to form a cathode group, an anode of the rectifier diode DA1 is connected with a cathode of the DA2, an anode of the rectifier diode DA3 is connected with a cathode of the DA4, an anode of the rectifier diode DA5 is connected with a cathode of the DA6, anodes of the rectifier diodes DA2, DA4 and DA6 are connected with one another to form an anode group, an output end of the anode group is connected with a source electrode of the Q1, and an output end of the cathode group is connected with a drain electrode of the Q1 through a resistor R2 to form a closed loop. And three center taps of the full-bridge circuit are respectively connected with a three-phase winding of a strong-drive elevator driving motor M. The grid of the IGBT is driven by an operational amplifier U1A, the forward input end of the operational amplifier U1A is connected with a 15V power supply through a normally open main contact of a star-sealing relay KFX, the reverse input end of the operational amplifier U1A is connected with the 15V power supply, and a resistor R1 is connected between the forward output end and the output end of the operational amplifier U1A.
When the elevator is started, the control end Y11 of the star-sealing relay of the traction type elevator controller 1 has no output, the coil of the star-sealing relay KFX has no electricity, the main contact of the star-sealing relay KFX is kept in a normally open state, the voltage of the forward input end of the operational amplifier U1A is 0 due to the action of a pull-down resistor, the reverse input end is directly connected with a 15V power supply, the voltage of the forward input end of the operational amplifier U1A is lower than that of the reverse input end, the operational amplifier U1A does not work, the output is zero, the IGBT grid can not be driven to be conducted, the full-bridge circuit does not work.
When the elevator stops, the control end Y11 of the star-sealing relay of the traction type elevator controller 1 outputs high level, the coil of the star-sealing relay KFX is electrified, the main contact of the star-sealing relay KFX is closed, the positive input end of the operational amplifier U1A is connected with a 15V power supply, the operational amplifier U1A works to output current, the grid of the IGBT is driven, the IGBT is conducted, the three-phase rectifier bridge works, the three-phase winding of the elevator driving motor M is driven by short circuit, and star sealing is completed quickly.
The structure ensures that the star sealing can be rapidly implemented as long as the elevator controller outputs a star sealing control signal when the elevator stops. The mechanical star sealing structure is not needed, the star sealing operation is started only after the operation contactor receives the low level control signal and waits for hundreds of milliseconds, and the star sealing contactor receives the low level control signal, so that the star sealing action time is saved, and the sliding distance is shortened.
Example 2:
this example differs from example 1 in that: a mechanical star point contact K2 is also provided in the line connecting the travel contact K1 and the traction elevator controller 1. The control signal is output by the traction type elevator controller 1, and the on-off of the mechanical star-sealing contactor K2 is controlled by the power on and power off of the coil.
Referring to fig. 2, the mechanical seal star contact K2 in this embodiment is connected as follows:
an auxiliary contact 83 of an operation contactor K1 is respectively connected with an AC220V negative terminal and a COM3 pin of a traction type elevator controller 1, an 84 pin of the auxiliary contact of the operation contactor K1 is connected with an A1 pin of a mechanical star-sealing contactor coil K2 and then connected with a Y8 pin of the traction type elevator controller 1, an A2 pin of a mechanical star-sealing contactor coil K2, a coil A2 pin of the operation contactor K1 and a coil A2 pin of a band-type brake contactor K3 are simultaneously connected with an AC220V positive terminal, an A1 pin of the operation contactor K1 coil is connected with a Y9 pin of the traction type elevator controller 1, and an A1 pin of a coil of the band-type brake contactor K3 is connected with a Y7 pin of the traction type elevator controller 1.
The Y9 pin of the traction type elevator controller 1 is connected with the 1 end, the 3 end and the 5 end of the normally open main contact of the operation contactor K1, the 2 end, the 4 end and the 6 end of the normally open main contact of the operation contactor K1 are sequentially connected with the 2 end, the 4 end and the 6 end of the normally closed main contact of the mechanical star-sealing contactor K2 and then connected with the three stator windings of the strong-drive elevator driving motor M, and the 1 end, the 3 end and the 5 end of the normally closed main contact of the mechanical star-sealing contactor K2 are connected with each other. When the normally closed contacts of the mechanical star contactor K2 are closed, the three-phase winding of the strong drive elevator drive motor M is shorted. When the control output Y9 of the operating contactor K1 is at a high level, a coil of the operating contactor K1 is electrified, a normally open main contact of the operating contactor K1 is closed and conducted, and voltage is output to the strong-drive elevator driving motor M; when the control output Y9 of the operating contactor K1 is at a low level, the coil of the operating contactor K1 loses power, the normally open main contact of the operating contactor K1 resets, and the output voltage of the strong drive elevator driving motor M is stopped.
The mechanical star sealing working process in the embodiment is as follows:
when the elevator is started, the control ends of the operation contactor K1 and the mechanical star sealing contactor K2 of the traction type elevator controller 1 are high and flat at the same time, the coil of the operation contactor K1 is electrified, after a period of time, the main contact and the auxiliary contact of the operation contactor K1 are closed, at the moment, the coil of the mechanical star sealing contactor K2 is electrified, the normally closed main contact is disconnected, and star sealing is removed;
when the elevator is stopped, the operation contactor K1 of the traction type elevator controller 1 controls the output Y9 to output low level at first, and the control output of the mechanical star-sealing contactor K2 is set to be low level after waiting for a long time. The normally open main contact and the normally open auxiliary contact of the operation contactor K1 reset, and the mechanical star sealing contactor K2 is controlled to output a low level for a period of time, so that according to the circuit structure of the embodiment, as long as the normally open auxiliary contact of the operation contactor K1 resets, the coil of the mechanical star sealing contactor K2 can be triggered to lose power, the main contact of the mechanical star sealing contactor K2 is restored to a closed state, and the short circuit drives the three-phase winding of the elevator driving motor M forcibly, so that mechanical star sealing is realized.
The mechanical star seal contact K2 serves as a redundant arrangement of the independent star seal relay KFX.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. An independent star-sealing control circuit for inhibiting sliding is applied to a strong-drive elevator control system and comprises a strong-drive elevator driving motor, a traction type elevator controller and an operation contactor, wherein the output end of the traction type elevator controller is connected with a coil of the operation contactor so as to control the coil of the operation contactor to be electrified or deenergized; the traction type elevator controller is characterized by further comprising an independent electronic star sealing loop, the independent electronic star sealing loop is connected between the normally open contact of the operation contactor and the forced drive elevator driving motor, and the independent star sealing loop and the long open contact of the operation contactor and the traction type elevator controller form a series loop.
2. The independent star sealing control circuit for restraining the rolling of the vehicle as claimed in claim 1, wherein the independent star sealing loop comprises a star sealing relay, a transistor, a three-phase full-bridge rectification circuit, a first resistor and a second resistor, one end of a coil of the star sealing relay is connected with a 24V power supply, and the other end of the coil of the star sealing relay is connected with an electronic star sealing control end of a traction type elevator controller; normally open contact one end of sealing star relay is connected with +15V power, the normally open contact other end of sealing star relay is connected with the forward input of amplifier, the reverse input of amplifier is connected with +15V, connect first resistance between the forward input of amplifier and the output of amplifier, the output of amplifier is connected with insulated gate bipolar transistor's grid, insulated gate bipolar transistor's source electrode and second resistance one end are connected, the second resistance other end is connected with three-phase full-bridge rectifier circuit's common cathode group output, insulated gate bipolar transistor's drain electrode and three-phase full-bridge rectifier circuit's common anode group output are connected, three-phase full-bridge rectifier circuit's three-phase center is taken a percentage and is linked to each other with strong motor three-phase winding that drives respectively.
3. The independent star control circuit for inhibiting rolling stock of claim 1 further comprising a mechanical star sealer contact connected between the operating contactor and the independent electronic star sealer circuit.
4. The independent star blocking control circuit for restraining the rolling of vehicles according to claim 3, wherein one end of the mechanical star blocking contactor coil is connected to one end of the coil of the traveling contactor and to one end of the power supply, the other end of the mechanical star blocking contactor coil is connected to the control signal output terminal of the traction type elevator controller and one end of the auxiliary contact of the traveling contactor, respectively, and the other end of the auxiliary contact of the traveling contactor is connected to the other output terminal of the traction type elevator controller and the other end of the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921081783.5U CN210505179U (en) | 2019-07-11 | 2019-07-11 | Independent star sealing control circuit for restraining vehicle sliding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921081783.5U CN210505179U (en) | 2019-07-11 | 2019-07-11 | Independent star sealing control circuit for restraining vehicle sliding |
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| CN210505179U true CN210505179U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921081783.5U Active CN210505179U (en) | 2019-07-11 | 2019-07-11 | Independent star sealing control circuit for restraining vehicle sliding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715749A (en) * | 2022-03-15 | 2022-07-08 | 苏州汇川控制技术有限公司 | Elevator star-sealing function automatic detection method, system, equipment and storage medium |
| CN115072531A (en) * | 2022-06-23 | 2022-09-20 | 重庆大学 | Method for improving star sealing torque of permanent magnet synchronous traction machine of elevator |
| CN115490103A (en) * | 2022-10-25 | 2022-12-20 | 菱王电梯有限公司 | Star sealing control method and device |
-
2019
- 2019-07-11 CN CN201921081783.5U patent/CN210505179U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715749A (en) * | 2022-03-15 | 2022-07-08 | 苏州汇川控制技术有限公司 | Elevator star-sealing function automatic detection method, system, equipment and storage medium |
| CN114715749B (en) * | 2022-03-15 | 2024-01-09 | 苏州汇川控制技术有限公司 | Automatic detection method, system, equipment and storage medium for elevator star sealing function |
| CN115072531A (en) * | 2022-06-23 | 2022-09-20 | 重庆大学 | Method for improving star sealing torque of permanent magnet synchronous traction machine of elevator |
| CN115072531B (en) * | 2022-06-23 | 2023-10-27 | 重庆大学 | Method for improving star sealing torque of permanent magnet synchronous traction machine of elevator |
| CN115490103A (en) * | 2022-10-25 | 2022-12-20 | 菱王电梯有限公司 | Star sealing control method and device |
| CN115490103B (en) * | 2022-10-25 | 2023-11-28 | 菱王电梯有限公司 | Star sealing control method and device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20220507 Address after: 110000 No. 37, Century Road, Hunnan New District, Shenyang, Liaoning Patentee after: Shenyang blue light new generation technology Co.,Ltd. Address before: 110179 No. 37, Century Road, Hunnan Industrial Zone, Shenyang high tech Zone, Shenyang, Liaoning Patentee before: SHENYANG BLUELIGHT AUTOMATIC TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |