CN220022320U - Control circuit for integral control type electric actuating mechanism - Google Patents
Control circuit for integral control type electric actuating mechanism Download PDFInfo
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- CN220022320U CN220022320U CN202320826366.9U CN202320826366U CN220022320U CN 220022320 U CN220022320 U CN 220022320U CN 202320826366 U CN202320826366 U CN 202320826366U CN 220022320 U CN220022320 U CN 220022320U
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- electric actuator
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- 230000007246 mechanism Effects 0.000 title abstract description 14
- 230000001012 protector Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model relates to the technical field of control of electric execution mechanisms, and particularly discloses a control circuit for an integrally controlled electric execution mechanism, which comprises the following components: a power input circuit: the power supply is used for connecting a three-phase power supply; a central instruction circuit: the control device is used for inputting a control command and controlling the working state of the integral control type electric actuator according to the control command; phase failure protection circuit: the power supply input circuit is connected with the central command circuit in an electric connection manner, so that the central command circuit is protected, and the problem that the control loop cannot be operated due to burning loss of the phase failure protection module caused by the fact that the stability of the phase failure protection module is reduced in long-term use of a traditional LK-3 type integrally-controlled electric actuating mechanism is solved.
Description
Technical Field
The utility model relates to the technical field of control of electric actuators, and particularly discloses a control circuit for an integrally controlled electric actuator.
Background
The most broad definition for an actuator is: a driving device capable of providing linear or rotary motion, which uses a driving energy and operates under a control signal. The actuator uses a liquid, gas, electric or other energy source and converts it into a driving action by means of an electric motor, cylinder or other device.
The present utility model is directed to an electric actuator which uses electricity as an energy source and converts the energy source into a driving force by a motor, and particularly to an LK-3 type integrally controlled electric actuator.
The LK-3 type integral control electric actuator consists of a motor with a thermal switch, a power supply for accessing a power supply, a plug-in board, a film panel for inputting control instructions and a functional board for receiving the control instructions and transmitting and issuing control signals. LK-3 type integral control electric actuator has two working states, namely a 'far' state and a 'on-site' state.
The LK-3 type integral control electric actuating mechanism can be operated in a 'far' or 'on-site' state respectively, so that the 'far' state and the 'on-site' state can be switched, when the 'far' state is switched to a 'grounding' state, the green luminous tube indicated by the 'far' state is extinguished, the red luminous tube indicated by the 'on-site' state is on, and the 'on, off and stop' keys operated remotely are not operated, and only the 'on, off and stop' keys can be operated on the on-site operation panel.
LK-3 type integral control electric actuating mechanism still is equipped with open-phase protection module (external power supply open-phase protection module), and when external power supply open-phase, the device stops work, and the node is closed, and each pilot lamp goes out on the film panel, and it is the power loss to judge fast.
However, the electric door has the defects that the stability of the power supply phase-failure protection module is poor, burning loss is easy to occur after the electric door is used for 5 years, the overhaul workload and the investment of funds are increased, the transformer cannot transform when the two sides of the three-phase power supply are powered off in a phase-to-phase mode, the power supply and the plug-in board cannot work, and the electric device cannot act; when the middle one phase of the three-phase power supply loses power, a control loop for controlling the motor of the electric actuating mechanism cannot be started, and the electric actuating mechanism still cannot act, so that on the premise of no phase failure protection module, when the three-phase power supply lacks any one phase, the actuating mechanism still cannot operate, and the fault expansion cannot be caused as well, and therefore the phase failure protection module can be removed.
Accordingly, the present inventors have provided a control circuit for an integrally controlled electric actuator to solve the above-described problems.
Disclosure of Invention
The utility model aims to solve the problem that the stability of a phase failure protection module is reduced and a control loop cannot be operated due to burning loss of the phase failure protection module when a traditional LK-3 type integral control type electric actuator is used for a long time.
In order to achieve the above object, a basic solution of the present utility model provides a control circuit for an integrally controlled electric actuator, comprising:
a power input circuit: the power supply is used for connecting a three-phase power supply;
a central instruction circuit: the control device is used for inputting a control command and controlling the working state of the integral control type electric actuator according to the control command;
phase failure protection circuit: the central command circuit is used for being connected with the power input circuit and electrically connected with the central command circuit, and protecting the central command circuit.
Further, the three-phase power supply voltage is 380V.
Further, the open-phase protection circuit comprises an open-phase protection module for connecting the power input circuit and the central command circuit.
Further, the phase-failure protection module is a phase-failure protector.
Further, the center instruction circuit includes:
film panel module: for inputting control instructions;
function board module: the control device is used for receiving the control instruction and controlling the whole control type electric actuator;
power supply and card module: the power supply is used for accessing power supply input voltage, and supplying power to the power utilization elements on the functional board module and the film panel module in the circuit after the power supply input voltage is reduced.
Further, a plurality of luminous function buttons are arranged on the film panel module.
Further, the power supply and the plug-in board module are provided with plug-ins electrically connected with the phase-failure protector.
Further, the plug-in is electrically connected with the X1-1 and X1-3 interfaces on the power supply and the plug-in board.
Further, the functional board module is electrically connected with a status display circuit.
The principle and effect of this scheme lie in:
compared with the prior art, after one or more phases of the three-phase power supply have the defects, the power is cut off, the phase-failure protection module and the plug-in thereof are disassembled, the power supply and the left sides X1-1 and X1-3 of the plug-in boards are short-circuited by using the jumper wire, so that the electric power supply and the plug-in boards can be continuously used, the improved control loop increases the running stability of the electric actuating mechanism, reduces the overhaul workload and the investment of funds, and solves the problem that the stability of the phase-failure protection module is reduced when the traditional LK-3 type integral control electric actuating mechanism is used for a long time, and the control loop cannot be operated due to the burning loss of the phase-failure protection module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a circuit connection diagram of a control circuit for an integrally controlled electric actuator according to an embodiment of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
Reference numerals in the drawings of the specification include: the motor 1, the power supply, the plug-in board module 2, the film panel module 3, the phase-failure protection module 4, the power supply 5, the off-direction torque control switch 6, the on-direction torque control switch 7, the off-direction travel control switch 8, the on-direction travel control switch 9 and the temperature controller 10.
An embodiment of a control circuit for an integrally controlled electric actuator is shown in fig. 1:
the main power supply 5 input circuit, the open-phase protection circuit and the central command circuit in the control circuit.
The power supply 5 connected to the power supply 5 input circuit is a three-phase power supply 5, and the voltage of the three-phase power supply 5 is as follows: AC380V.
The three phases of the three-phase power supply 5 are L1, L2 and L3 from left to right, respectively.
The three-phase power supply 5 is also connected with alternating current contactors KMC and KMO, and three phases L1, L2 and L3 are respectively connected with a normally open contact to be connected with the KMC. And a closed loop is correspondingly connected between the three phases, a normally open contact is connected in the loop and connected with a KMO, and the KMO and the KMC are connected in parallel and are connected with a normally closed contact. The working voltages of the alternating current contactors KMC and KMO are as follows: AC380V.
The open-phase protection circuit is connected to a closed loop on the three phases L1, L2 and L3 and mainly comprises an open-phase protection module 4, and the model of the open-phase protection module 4 is a QXBH Siemens open-phase protector.
The central instruction circuit mainly comprises three modules: a power supply and plug-in board module 2, a function board module and a film panel module 3. The power supply and plug-in board module 2 is used for accessing the input voltage of the power supply 5, and supplying power to the power utilization elements on the functional board module and the film panel module 3 in the circuit after the voltage is reduced. The QXBH Siemens open-phase protector is connected to the power supply 5 and the plug-in board after being connected with the input circuit of the power supply 5. QXBH (phase failure protection module) is connected to power supply 5 and to the left side card in the card, and is connected to power supply 5 and to X1-1 and X1-3 in the card.
The control command can be input to the functional board through the film panel, and after the functional board receives the control command, the control switch indicates the on-off state of the circuit in the circuit through circuit connection, so that the control of the output of the motor 1 is completed. The LK-3 type integral control electric actuator can be selected in a 'far' state and a 'on-site' state through the film panel, and three buttons are further arranged on the film panel and are respectively as follows: "on", "off" and "off".
The LK-3 type integral control electric actuating mechanism can be controlled to operate in a remote or local state through the film panel, so that the remote and local states can be switched, when the remote state is switched to a grounding state, the green luminous tube indicated by the remote state is extinguished, the red luminous tube indicated by the local state is on, and the remote operating on, off and stop keys are not activated and can only be operated on the local operating panel.
In this embodiment, the internal wiring circuit of the electric device of the LK-3 type integrally controlled electric actuator mainly comprises a motor 1, a temperature controller 10 electrically connected with the motor 1, a switch indicating circuit and an output circuit.
The motor 1 is electrically connected with the temperature controller 10 to prevent the motor 1 from overheating. The motor 1, the switch indication circuit and the output circuit are electrically connected with the control circuit.
The switch indication circuit comprises a turning-off torque control switch 6, a turning-on torque control switch 7, a turning-off travel control switch 8 and a turning-on travel control switch 9 which are connected into the circuit and used for controlling the torque and the travel of the motor 1, and is also connected with a temperature controller 10. When the temperature of the motor 1 is too high, the switch indication circuit is controlled by the temperature controller 10 to keep open.
A standby circuit is also provided in the internal wiring circuit, including an off-standby travel control switch and an on-standby travel control switch.
The output circuit includes a trip status signal display, an "in-situ" and "remote" operating status display, and a fault information display.
When the power supply 5 is out of phase, two contact points of X1-1 and X1-3 on the power supply 5 and the plug-in board are disconnected, the device stops working, the node for displaying fault information is closed, and each indicator lamp on the film panel is extinguished, so that only a jumper wire is needed to short-circuit the two contact points, and the electric actuating mechanism can normally operate after the phase-failure protection module is removed.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (9)
1. The utility model provides a control circuit for whole control formula electric actuator which characterized in that: comprising the following steps:
a power input circuit: the power supply is used for connecting a three-phase power supply;
a central instruction circuit: the control device is used for inputting a control command and controlling the working state of the integral control type electric actuator according to the control command;
phase failure protection circuit: the central command circuit is used for being connected with the power input circuit and electrically connected with the central command circuit, and protecting the central command circuit.
2. The control circuit for an integrally controlled electric actuator according to claim 1, wherein the three-phase power supply voltage is 380V.
3. The control circuit for an integrally controlled electric actuator of claim 2, wherein the open-phase protection circuit comprises an open-phase protection module for connecting the power input circuit and the central command circuit.
4. A control circuit for an integrally controlled electric actuator as claimed in claim 3, wherein said open-phase protection module is an open-phase protector.
5. The control circuit for an integrally controlled electric actuator as claimed in claim 4, wherein said central command circuit comprises:
film panel module: for inputting control instructions;
function board module: the control device is used for receiving the control instruction and controlling the whole control type electric actuator;
power supply and card module: the power supply is used for accessing power supply input voltage, and supplying power to the power utilization elements on the functional board module and the film panel module in the circuit after the power supply input voltage is reduced.
6. The control circuit for an integrally controlled electric actuator of claim 5, wherein said membrane panel module has a plurality of lighted feature buttons thereon.
7. The control circuit for an integrally controlled electric actuator of claim 5, wherein said power and board module has a plug-in electrically connected to a phase failure protector.
8. The control circuit for an integrally controlled electric actuator of claim 6, wherein said plug-in is electrically connected to a power source and to the X1-1 and X1-3 interfaces on the plug-in board.
9. The control circuit for an integrally controlled electric actuator according to any one of claims 5 to 8, wherein the function board module is further electrically connected to a status display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826366.9U CN220022320U (en) | 2023-04-13 | 2023-04-13 | Control circuit for integral control type electric actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826366.9U CN220022320U (en) | 2023-04-13 | 2023-04-13 | Control circuit for integral control type electric actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022320U true CN220022320U (en) | 2023-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320826366.9U Active CN220022320U (en) | 2023-04-13 | 2023-04-13 | Control circuit for integral control type electric actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022320U (en) |
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2023
- 2023-04-13 CN CN202320826366.9U patent/CN220022320U/en active Active
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