CN215596520U - Electric actuator capable of controlling opening and closing amount and controlling in adjustable mode - Google Patents
Electric actuator capable of controlling opening and closing amount and controlling in adjustable mode Download PDFInfo
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- CN215596520U CN215596520U CN202122205347.8U CN202122205347U CN215596520U CN 215596520 U CN215596520 U CN 215596520U CN 202122205347 U CN202122205347 U CN 202122205347U CN 215596520 U CN215596520 U CN 215596520U
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Abstract
The utility model discloses an electric actuator capable of controlling on/off and adjusting, which comprises a circuit board arranged on the electric actuator and a motor connected with the electric actuator, wherein a transformer, a microprocessor, a relay, a dial switch and a plurality of wiring terminals are arranged on the circuit board, the wiring terminals #14 and #15 are used for connecting an external power supply source of 220Vac/50Hz, the wiring terminals #1 and #2 are used for connecting external control signals of 4-20 mA or 2-10V, the dial switch can be used for controlling the access of the external control signals of the wiring terminals #1 and #2, the relays comprise a plurality of relays which are opened and closed by relays, the wiring terminals #12 and #13 respectively control the opening and closing of the valves, the motor is connected with three cables which are respectively an opening cable, a closing cable and a public cable, and the opening cable is connected with the three cables, The valve-closing cable and the common cable are used to accomplish a modulating or switching amount control of the actuator.
Description
Technical Field
The utility model relates to the field of electric actuators, in particular to an electric actuator capable of controlling both opening and closing amount and regulating type.
Background
A large number of electric valves are used in the field of heating ventilation air conditioners, and an electric actuator for driving the valves is divided into a switching value control mode and a regulating type control mode in terms of a control mode. The switching value control is realized by supplying power to/cutting off power from the actuator, and the actuator has only two positions of full on or full off; the regulation type control is continuous control, a control signal (such as an analog quantity of 4-20 mA or 2-10V) is input into an actuator, and the actuator reaches a corresponding position according to the signal.
In practical application, the problems are often encountered, after the valves are installed, some valves are originally controlled by switching value, but the design change requires the realization of regulation type control; similarly, there are also existing actuators of the regulating type, which are now switched to switching value control, thus requiring actuator replacement. The actuator is not easy to replace in actual operation, and particularly, actuators of valves with large calibers have large volumes and heavy weights; in addition, the installation position is special, such as the installation of a commonly adopted suspended ceiling, the position is high, the space is small, and the factors cause that the replacement work is very difficult.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the electric actuator which can be controlled by switching value and regulating value, the control mode can be switched by changing the setting of the dial switch on the actuator control circuit board, and the actuator does not need to be replaced.
In order to solve the technical problems, the utility model provides the following technical scheme: the electric actuator comprises a circuit board arranged on the electric actuator and a motor connected with the electric actuator, wherein a transformer, a microprocessor, a relay, a dial switch and a plurality of wiring terminals are arranged on the circuit board, the wiring terminals # 14 and #15 are used for connecting an external power supply source of 220Vac/50Hz, the wiring terminals # 1 and #2 are used for connecting external control signals of 4-20 mA or 2-10V, the dial switch can be used for controlling the access of the external control signals of the wiring terminals # 1 and #2, the relay comprises a plurality of relays which are opened and closed, the wiring terminals # 12 and #13 respectively control the opening and closing of the valves, the motor is connected with three cables which are respectively an opening cable, a closing cable and a public cable, and the opening cable comprises a first cable, a second cable, a third cable and a fourth cable, The valve closing cable and the public cable are used for completing the adjustment type or switching value control of the actuator, and the microprocessor is used for controlling the opening and closing of the relay valve or the relay valve closing after operation according to the transmission requirement of an external control signal.
In a preferred embodiment of the present invention, the connection terminal is composed of 22 connection terminals # 1 to # 22.
As a preferred embodiment of the present invention, the transformer is used to step down the 220V supply voltage to a voltage suitable for the microprocessor.
In a preferred embodiment of the present invention, the valve-opening cable, the valve-closing cable and the common cable are connected to terminals #20, #19 and #16 on the circuit board in this order.
In a preferred embodiment of the present invention, the relay-open valve is connected to terminals #16 and #20, and the relay-close valve is connected to terminals #16 and # 19.
As a preferred technical scheme of the utility model, an actuator reduction box is also arranged below the motor.
Compared with the prior art, the utility model can achieve the following beneficial effects: when the adjustment control is needed, the #1 and the #2 of the dial switch are positioned at the OFF position and are connected with an external control signal through the #1 and the #2 terminals, the microprocessor controls the opening and closing of the relay valve or the relay valve after the operation, the valve opening cable, the valve closing cable and the common cable of the motor are sequentially connected with terminals #20, #19 and #16 ON the circuit board to complete the adjustment type control of the actuator, when the switch control is needed, the #1 and #2 of the dial switch are both dialed to the ON position, the valve is opened and closed by the energization or non-energization of terminals # 12 and #13, respectively, and the microprocessor detects the change in the setting of the dip switches # 1 and #2, therefore, the input signals of the terminals # 1 and #2 are ignored, and the switching value control is realized, so that the regulation control and the switching control can be realized, and different control requirements of the electric actuator can be met.
Drawings
FIG. 1 is a schematic view of the structure of the circuit board of the present invention.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in figure 1, the utility model provides an electric actuator capable of both on-off control and regulation control, which comprises a circuit board arranged on the electric actuator and a motor connected with the electric actuator, wherein a transformer, a microprocessor, a relay, a dial switch and a plurality of connecting terminals are arranged on the circuit board, the connecting terminals consist of 22 connecting terminals from #1 to #22, the connecting terminals # 14 and #15 are used for connecting an external power supply of 220Vac/50Hz, the transformer is used for reducing the 220V power supply voltage into a voltage suitable for the microprocessor, the connecting terminals # 1 and #2 are used for connecting external control signals of 4-20 mA or 2-10V, the dial switch can be used for controlling the connection of the external control signals of the connecting terminals # 1 and #2, the relays comprise a plurality of relays which comprise a relay opening valve and a relay closing valve, and the connecting terminals # 12 and #13 respectively control the opening and closing valves, the motor is connected with three cables which are respectively a valve opening cable, a valve closing cable and a public cable, the valve opening cable, the valve closing cable and the public cable are used for completing the adjustment type or switching value control of the actuator, and the number of the relays is three, namely a relay valve opening, a relay valve closing and a fault alarm relay, and the three relays are used for controlling the opening and closing of the relay valve or the relay valve closing after being operated by the microprocessor according to the transmission requirement of an external control signal;
the valve opening cable, the valve closing cable and the common cable are sequentially connected with wiring terminals #20, #19 and #16 on the circuit board;
the relay open valve is connected with the wiring terminals #16 and #20, and the relay close valve is connected with the terminals #16 and # 19;
an actuator reduction box is also arranged below the motor and used for reducing the rotating speed of the motor.
When the switching value control is needed, firstly, the #1 bit and the #2 bit of the dial switch are both dialed to the ON position; terminals # 14 and #15 are connected with an external power supply, terminals # 12 and #13 respectively control the valve to be opened and closed, and the specific operation is as follows: when the 220V voltage is applied to the wiring terminal # 12 and the wiring terminal # 13 is not applied, the microprocessor conducts the wiring terminals #20 and #16 through the relay, and the actuator performs a valve opening action; when the terminal # 13 is energized with the voltage of 220V and the terminal # 12 is not energized, the microprocessor turns on the terminals # 19 and #16 through the relay, and the actuator performs a valve-closing action. Since the microprocessor detects a change in the setting of the dip switches # 1 and #2, the input signals to the terminals # 1 and #2 are ignored, thus achieving the switching amount control.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an electric actuator that can switching value control also can regulation type control which characterized in that: the electric control switch comprises a circuit board arranged on an electric actuator and a motor connected with the electric actuator, wherein a transformer, a microprocessor, a relay, a dial switch and a plurality of wiring terminals are arranged on the circuit board, the wiring terminals #14 and #15 are used for connecting an external power supply of 220Vac/50Hz, the wiring terminals #1 and #2 are used for connecting external control signals of 4-20 mA or 2-10V, the dial switch can be used for controlling the access of the external control signals of the wiring terminals #1 and #2, the relays comprise a plurality of relay opening valves and relay closing valves, the wiring terminals #12 and #13 respectively control the opening and closing of the valves, the motor is connected with three cables which are respectively an opening cable, a closing cable and a public cable, and the opening cable, the closing cable and the public cable are used for completing the adjustment type or the switching value control of the actuator, and the microprocessor is used for controlling the opening and closing of the relay valve or the relay valve after operation according to the transmission requirement of the external control signal.
2. An electric actuator capable of both on-off and on-off control as well as on-off control as set forth in claim 1 wherein: the connecting terminal consists of 22 connecting terminals from #1 to # 22.
3. An electric actuator capable of both on-off and on-off control as well as on-off control as set forth in claim 1 wherein: the transformer is used for reducing the 220V power supply voltage to a voltage suitable for the microprocessor.
4. An electric actuator capable of both on-off and on-off control as well as on-off control as set forth in claim 1 wherein: the valve-opening cable, the valve-closing cable and the common cable are connected with wiring terminals #20, #19 and #16 on the wiring board in sequence.
5. An electric actuator capable of both on-off and on-off control as well as on-off control as set forth in claim 1 wherein: the relay-open valve is connected to terminals #16 and #20, and the relay-close valve is connected to terminals #16 and # 19.
6. An electric actuator capable of both on-off and on-off control as well as on-off control as set forth in claim 1 wherein: and an actuator reduction box is also arranged below the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122205347.8U CN215596520U (en) | 2021-09-13 | 2021-09-13 | Electric actuator capable of controlling opening and closing amount and controlling in adjustable mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122205347.8U CN215596520U (en) | 2021-09-13 | 2021-09-13 | Electric actuator capable of controlling opening and closing amount and controlling in adjustable mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596520U true CN215596520U (en) | 2022-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122205347.8U Active CN215596520U (en) | 2021-09-13 | 2021-09-13 | Electric actuator capable of controlling opening and closing amount and controlling in adjustable mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596520U (en) |
-
2021
- 2021-09-13 CN CN202122205347.8U patent/CN215596520U/en active Active
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