CN203272951U - Electric actuator provided with potentiometer - Google Patents
Electric actuator provided with potentiometer Download PDFInfo
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- CN203272951U CN203272951U CN 201320274329 CN201320274329U CN203272951U CN 203272951 U CN203272951 U CN 203272951U CN 201320274329 CN201320274329 CN 201320274329 CN 201320274329 U CN201320274329 U CN 201320274329U CN 203272951 U CN203272951 U CN 203272951U
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- potentiometer
- electric actuator
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Abstract
The utility model relates to an electric actuator provided with a potentiometer. The electric actuator comprises a control circuit board, a transmission mechanism, an output shaft and a motor. The motor is connected with the transmission mechanism and drives the output shaft to rotate through the transmission mechanism. The control circuit board is arranged on the output shaft. The hollow potentiometer is fixedly mounted on the output shaft in a coaxial mode. The control circuit board comprises a positioning module, a user input module, an MCU, a power module and a motor driving module. The MCU is connected with the positioning module, the user input module, the power module and the motor driving module. The output end of the power module is connected to the MCU and the motor driving module. The MCU collects position signals through the positioning module and collects control signals through the user input module. The electric actuator provided with the potentiometer integrates circuit boards of multiple control modes and multiple valve circulation forms and conducts selection through dial switches, thereby tremendously improving production efficiency, lowering management cost and realizing standardized production.
Description
Technical field
The utility model belongs to the electric actuator field, specifically, is a kind of electric actuator with potentiometer.
Background technique
Electric actuator is a kind of drive unit that straight line is provided or rotatablely moves, the conventional electric final controlling element adopts mechanical switch usually, as modes such as reed location, sensitive switch location, main structure generally comprises cam, positioning means, control circuit board, cam vertically is arranged on control circuit board, vertically be provided with positioning means on the control circuit board of this cam one side, touch reed or the interface of described positioning means when this cam rotates, thereby produce control signal.
There is following shortcoming in above-mentioned orientation type: 1, the mechanical switch volume is larger, has taken most of space of final controlling element inside, makes the final controlling element volume increase; 2, reed is decided the simple in structure of mode, but the installation and adjustment process is complicated, and mechanical life is short; Although the installation and adjustment process of sensitive switch orientation type is simple, complicated in mechanical structure, mechanical life is short, and the repetitive positioning accuracy of two kinds of orientation types is low; 3, because the circulating form of valve is determined according to use condition, and the corresponding a kind of control circuit board of each circulating form, the various control circuit board therefore produced; 4, the control connection mode of conventional electric final controlling element has four kinds, and as shown in Figures 1 to 4, the corresponding a kind of control circuit board of a kind of Placement certainly will need to prepare a large amount of stocks like this, thereby reduces manufacturing efficiency, raising administration cost.
Through retrieval, find one piece of patent documentation relevant to this patent content, publication number is that the Chinese patent of CN2716876 discloses, patent name is: a kind of CAN bus type intelligent electric executor controller, this patent is lower for the control accuracy of the electric valve controller of being controlled by analogue signal, wiring and safeguard inconveniently, and the deficiency that can't carry out network service designs.This device has adopted digital control technology and bus communication technology, take microprocessor AD89C55 as control core, be provided with the modules such as input channel and feedback channel, electric current output, program storage, button and demonstration, Electric Machine Control, bus communication and power supply and form.
By contrast, above-mentioned patent publication us and present patent application have more different on technological scheme.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of electric actuator with potentiometer and controlling method thereof are provided, and this final controlling element volume is little, working stability, life-span are long, and can effectively enhance productivity, reduce the stock control cost.
Scheme of the present utility model is achieved in that
A kind of electric actuator with potentiometer, comprise control circuit board, driving mechanism, output shaft and motor, described motor is connected with driving mechanism and passes through the rotation of driving mechanism driver output axle, top at output shaft is coaxially arranged with control circuit board, the coaxial hollow potentiometer that is fixedly mounted with on the output shaft above described control circuit board;
Described control circuit board comprises locating module, user's load module, MCU main control module, power module and motor drive module, the MCU main control module is connected with motor drive module with locating module, user's load module, power module respectively, the output terminal of this power module is connected to MCU main control module and motor drive module, the MCU main control module is by locating module collection position signal, by user's load module collection control signal, and the MCU main control module is by the work of motor drive module drive motor.
And described locating module comprises resistance voltage conversion circuit, and the input end of this resistance voltage conversion circuit and hollow potentiometer link together.
And, described user's load module comprises user input unit and the control signal collecting unit that connects successively, this user input unit is connected with power module, and the control signal collecting unit is exported to the MCU main control module after user's input is converted into digitally encoded signal.
And the output terminal of described MCU main control module connects a feedback module, and this feedback module is transistor OC door feedback, relay feedback or controllable silicon feedback.
And described power module comprises two power circuits, a farad capacitor in parallel between two power circuits.
And the input end of described MCU main control module also connects a valve circulation pattern and selects module.
And described selection module is toggle switch.
And described MCU main control module adopts single-chip microcomputer, CPLD, FPGA or ARM intelligent chip.
Advantage of the present utility model and good effect are:
1, this electric actuator uses hollow potentiometer to replace traditional mode collection position signals such as mechanical switch, makes the repetitive positioning accuracy of electric actuator high, and Installation and Debugging are simple, increase work efficiency.
2, increase by a feedback module in the control circuit of this electric actuator, this feedback module has thoroughly solved valve return difference problem, makes final controlling element can realize standard-sized sheet, complete shut-down state, and the situation of having avoided final controlling element to open incomplete or Guan Buquan occurs.
3, the MCU main control module on this electric actuator control circuit board connects a valve circulation pattern selection module, this module has realized the circulating form of multiple valve is integrated on a circuit board control panel, and select circulating form by toggle switch, greatly improve manufacturing efficiency, reduced administration cost.
4, this electric actuator is by the optimum organization of some interfaces, control signal only is converted to OP(and opens the most at last), CL(closes) two states, can realize the circuit board of multiple control modes is integrated, and select by the form of toggle switch, greatly enhance productivity, reduced administration cost, realized the standardized production of electric actuator.
Description of drawings
Fig. 1 is prior art B2 control mode connection diagram;
Fig. 2 is prior art B3 control mode connection diagram;
Fig. 3 is prior art BD3 control mode connection diagram;
Fig. 4 is prior art KT2 control mode connection diagram;
Fig. 5 is the utility model structural representation;
Fig. 6 is the utility model schematic block circuit diagram;
Fig. 7 is the utility model user load module theory diagram;
Fig. 8 is the power supply connection diagram that the utility model adopts B2, B3, BD3 control mode;
Fig. 9 is the power supply connection diagram that the utility model adopts the KT2 control mode;
Figure 10 is 90 ° of type valve circulating form schematic diagram of the utility model two positions;
Figure 11 is 180 ° of type valve circulating form schematic diagram of the utility model two positions;
Figure 12 is the utility model 180 ° of three positions type valve circulating form schematic diagram;
Figure 13 is the utility model 90 ° of four positions type valve circulating form schematic diagram;
Figure 14 is the simple and easy control flow chart of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by specific embodiment, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of electric actuator with potentiometer, its structure as shown in Figure 5, comprise control circuit board 2, driving mechanism 3, motor 4 and output shaft 5, described motor is connected with driving mechanism and passes through the rotation of driving mechanism driver output axle, is coaxially arranged with control circuit board on the top of output shaft.
Innovative point of the present utility model is:
Coaxially on the output shaft of described control circuit board top be fixedly mounted with a hollow potentiometer 1, thereby output shaft drives hollow potentiometer rotation outgoing position signal.Described control circuit board comprises locating module 6, user's load module 7, MCU main control module, power module and motor drive module, as shown in Figure 6, described MCU main control module is connected with motor drive module with locating module, user's load module, power module respectively, this power module carries out power conversion with the control signal of user's input, is the power supply of the modules on control circuit board.The MCU main control module is by locating module collection position signal, by user's load module collection control signal, this locating module comprises the resistance voltage conversion circuit, this resistance voltage conversion circuit is connected with hollow potentiometer, the rotation of hollow potentiometer can make its resistance change, and the resistance that changes is converted into analog voltage and exports to the MCU main control module, the MCU main control module is the variation of the magnitude of voltage on the Real-time Collection potentiometer, represent the different resistances of potentiometer with different magnitude of voltage, thereby indirectly represent the angle that valve rotates.Described user's load module is made of user input unit and control signal collecting unit, this user's load module both can change user's control signal into the power supply of the control circuit board of final controlling element inside, user's control signal can be converted again to digital signal for MCU main control module collection user's external control order; The MCU main control module is by the work of motor drive module drive motor.MCU control module on control circuit board can adopt single-chip microcomputer, CPLD, FPGA or ARM intelligent chip.
In the present embodiment, the theory diagram of described user's load module as shown in Figure 7, the input unit that is formed by J1, J2, J3 and four interfaces of COM, wherein, both input also provided power supply simultaneously as control signal for J1, J2, J3 only provides power supply.According to the mode of connection of table 1 (● expression welding), welding J1 and J2 interface are the B2 control mode; Welding J1, J2 and com interface are the B3 control mode; Welding J1, J3 and com interface are the BD3 control mode; Welding J2 and com interface are the KT2 control mode.
Realize the optimum organization of signal by the connection of distinct interface, the connection of interface can be completed by the mode of welding, also can realize by one group of toggle switch, thereby B2, B3, BD3, four kinds of control modes of KT2 can be incorporated on a circuit board, realize the standardized production of final controlling element, effectively increase work efficiency, reduce administration cost.
| ? | J 1 | J 2 | J 3 | COM |
| B2 | ● | ● | ? | ? |
| B3 | ● | ● | ? | ● |
| BD3 | ● | ? | ● | ● |
| KT2 | ? | ● | ? | ● |
Table one
Work as J
XDuring energising, OP(opens), CL(closes) signal is arranged is 1, no signal is that 0(sees Table two), wherein, NC represents unsettled no signal.
Table two
The conclusion that is drawn by table two is:
When opening the valve state, OP=1, CL=0; During close valve state, OP=0, CL can be any value.
Described power module is that the modules on control circuit board is powered, and can support alternating direct-current, wide voltage is general and anti-ly connects anti-design.When using B2, B3, BD3 control mode, use power supply as shown in Figure 8 to connect block diagram, J1, J2, J3 and COM are connected with the power circuit input end and are connected, and the output terminal of this power circuit is powered with control panel respectively and is connected with motor feed circuit.When using the KT2 control mode, use power supply as shown in Figure 9 to connect block diagram, the above-mentioned control mode of its difference be that final controlling element inside connects a farad capacitor between two power circuits, as the standby power supply that continues as the control system power supply after outside power down, increase farad capacitor and realize the KT2 control mode, form unified external interface with other control modes.
As shown in Figure 6, the output terminal of described MCU main control module connects a feedback module, feedback system commonly used has transistor OC door feedback, relay feedback or controllable silicon feedback, after the MCU main control module is processed position signal, calculate the return difference of final controlling element by software program, thoroughly solve valve return difference problem, made all final controlling element can realize standard-sized sheet, complete shut-down state, avoided opening the situation of incomplete or Guan Buquan.
Input end at the MCU main control module also connects a valve circulation pattern selection module, this valve circulation pattern selects module to set the different circulating form of valve according to customer requirements in control circuit, and the selection mode of this selection module can be realized by toggle switch.The circulating form of valve is divided into four kinds of valves as shown in Figure 10 to 13, the circulating form that valve is different is encoded and is preset in control circuit, and this presets coding as shown in Table 3, can expand as required.
| Circulating form | Coding |
| 90 ° of type valves of two positions | 000 |
| 180 ° of type valves of two positions | 001 |
| Three position type valves | 010 |
| Four position type valves | 011 |
| … | … |
Table three
A kind of electric actuator controlling method with potentiometer, as shown in figure 14, step is:
A kind of controlling method of selecting the electric actuator of module with potentiometer and valve circulation pattern, as shown in figure 11, at first, arbitrary circulating form during the user selects as Figure 10 valve by valve circulation pattern selection module on a control circuit board, its step is as follows:
The first is selected two positions 90 degree rotary type valves
The second is selected two positions 180 degree rotary type valves
This operating method and the first are identical, and just the angle between two positions is different.
The third selects three position 180 degree (0 °, 90 °, 180 °) type valves
When user control command is position 3 (open 180 degree), final controlling element is carried out and is opened 180 degree actions, until valve turns to position 3, and the MCU main control module detects the signal that puts in place that reaches position 3 and just stops.
When closing valve, final controlling element is carried out and is closed valve events when user control command, until valve goes back to the pass valve position, and the MCU main control module detects and closes the signal that puts in place and just stop.
The 4th kind, select four position 90 degree (0 °, 30 °, 60 °, 90 °) type valves
This operating method and the third is basic identical just increases a position on the third basis.
The circulating form of valve is not limited to above-mentioned four kinds, can set according to user's request; In addition, the angle of swing of valve equally also can be set according to demand by the user.
Claims (8)
1. electric actuator with potentiometer, comprise control circuit board, driving mechanism, output shaft and motor, described motor is connected with driving mechanism and passes through the rotation of driving mechanism driver output axle, top at output shaft is coaxially arranged with control circuit board, it is characterized in that: the coaxial hollow potentiometer that is fixedly mounted with on the output shaft above described control circuit board;
Described control circuit board comprises locating module, user's load module, MCU main control module, power module and motor drive module, the MCU main control module is connected with motor drive module with locating module, user's load module, power module respectively, the output terminal of this power module is connected to MCU main control module and motor drive module, the MCU main control module is by locating module collection position signal, by user's load module collection control signal, and the MCU main control module is by the work of motor drive module drive motor.
2. the electric actuator with potentiometer according to claim 1, it is characterized in that: described locating module comprises resistance voltage conversion circuit, the input end of this resistance voltage conversion circuit and hollow potentiometer link together.
3. the electric actuator with potentiometer according to claim 1, it is characterized in that: described user's load module comprises user input unit and the control signal collecting unit that connects successively, this user input unit is connected with power module, and the control signal collecting unit is exported to the MCU main control module after user's input is converted into digitally encoded signal.
4. the electric actuator with potentiometer according to claim 1 is characterized in that: the output terminal of described MCU main control module connects a feedback module, and this feedback module is transistor OC door feedback, relay feedback or controllable silicon feedback.
5. the electric actuator with potentiometer according to claim 1, it is characterized in that: described power module comprises two power circuits, a farad capacitor in parallel between two power circuits.
6. the electric actuator with potentiometer according to claim 1 is characterized in that: the input end of described MCU main control module also connects a valve circulation pattern and selects module.
7. the electric actuator with potentiometer according to claim 6, it is characterized in that: described selection module is toggle switch.
8. the described electric actuator with potentiometer of according to claim 1 to 6 any one, is characterized in that: the described employing of MCU main control module single-chip microcomputer, CPLD, FPGA or ARM intelligent chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274329 CN203272951U (en) | 2013-05-17 | 2013-05-17 | Electric actuator provided with potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274329 CN203272951U (en) | 2013-05-17 | 2013-05-17 | Electric actuator provided with potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272951U true CN203272951U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320274329 Expired - Lifetime CN203272951U (en) | 2013-05-17 | 2013-05-17 | Electric actuator provided with potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244736A (en) * | 2013-05-17 | 2013-08-14 | 天津开利达控制技术开发有限公司 | Electric actuator with potentiometer and control method of electric actuator |
| CN104316240A (en) * | 2014-11-18 | 2015-01-28 | 天津市津达执行器有限公司 | Method for acquiring moment of electric actuator |
-
2013
- 2013-05-17 CN CN 201320274329 patent/CN203272951U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244736A (en) * | 2013-05-17 | 2013-08-14 | 天津开利达控制技术开发有限公司 | Electric actuator with potentiometer and control method of electric actuator |
| CN103244736B (en) * | 2013-05-17 | 2016-03-16 | 天津开利达控制技术开发有限公司 | A kind of electric actuator with potentiometer and controlling method thereof |
| CN104316240A (en) * | 2014-11-18 | 2015-01-28 | 天津市津达执行器有限公司 | Method for acquiring moment of electric actuator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |