CN207278995U - A kind of regulating valve with motor protection function - Google Patents
A kind of regulating valve with motor protection function Download PDFInfo
- Publication number
- CN207278995U CN207278995U CN201720938259.XU CN201720938259U CN207278995U CN 207278995 U CN207278995 U CN 207278995U CN 201720938259 U CN201720938259 U CN 201720938259U CN 207278995 U CN207278995 U CN 207278995U
- Authority
- CN
- China
- Prior art keywords
- motor
- nand gate
- resistance
- capacitance
- regulating valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a kind of regulating valve with motor protection function; including control circuit, motor, transmission mechanism and valve body; the control circuit is equipped with motor protecting circuit; can motor occur over current fault when quick response; cut off motor power; high sensitivity, can effectively prevent that high current causes motor to malfunction caused by motor start-up, and then avoid motor malfunction damage regulating valve.
Description
Technical field
It the utility model is related to the control technology field of regulating valve, more particularly to a kind of tune with motor protection function
Save valve.
Background technology
Electric control valve is the important execution unit instrument in industrial automation process control, automatic with industrial circle
Change degree is higher and higher, is just more and more applied in various field of industrial production.Existing electric control valve uses electricity
Motivation is as prime mover, the unlatching with movable valve, closure after motor is slowed down by main drive gear, therefore, motor conduct
It is most important whether one of important component of regulating valve works normally.In order to ensure the normal work of motor, most electricity
Dynamic regulating valve all specially protects motor.The existing mode protected to regulating valve motor is using open circuit
The electrical equipments such as device, electrothermal relay, thermostat, motor power realization is cut off when motor overcurrent occurs when failure to electronic
The protection of machine, but which is there are the shortcomings that the response time is long, poor sensitivity, the ability usually after the over current fault several seconds occurs
Responded, cut off motor power, frequently resulted in burn-down of electrical machinery or motor malfunction, damage regulating valve.
Utility model content
The purpose of this utility model is to provide a kind of regulating valve with motor protection function, solves above-mentioned technology and asks
Topic, using motor protecting circuit, is enable to respond quickly when over current fault occurs for motor, cuts off motor power, effectively
Prevent that high current causes motor to malfunction caused by motor start-up, and then avoid motor malfunction damage regulating valve.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of regulating valve with motor protection function, including control circuit, motor, transmission mechanism and valve body,
The control circuit and electronic mechatronics, for sending control instruction；
The motor is mechanically connected with transmission mechanism, and for the control instruction sent according to control circuit, electric energy is turned
Mechanical energy is turned to, drives transmission mechanism action；
The transmission mechanism is mechanically connected with valve body, for driving valve body to act；
The valve body is used to control medium to pass through；
The control circuit includes motor protecting circuit, the motor protecting circuit and electronic mechatronics, is used for
Excessive current flow in motor is protected, specifically includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance,
Six resistance, the first adjustable resistance, the second adjustable resistance, the 3rd adjustable resistance, the first capacitance, the second capacitance, the 3rd capacitance, the 4th
Capacitance, the first diode, the second diode, the first triode, the second triode, the first NAND gate, the second NAND gate, the 3rd with
NOT gate and relay, wherein, power positive end connects power supply through the first capacitance, first resistor with the first adjustable resistance fixing end successively
The common port of negative terminal, the first capacitance and first resistor connects two input terminals of the first NAND gate, the output terminal of the first NAND gate
An input terminal of the 3rd NAND gate is connected, another input terminal of the 3rd NAND gate connects the anode of the first diode all the way,
The second NAND gate output terminal is connected through the 3rd adjustable resistance fixing end all the way, connects the 3rd adjustable resistance adjustable side all the way, is also had
Adjustable side all the way through the 3rd the first adjustable resistance of capacitance connection, the adjustable side connection power cathode of the first adjustable resistance, second
Resistance one end connects power positive end, and the other end connects the first transistor collector through the second adjustable resistance fixing end all the way, another
Road connects the second adjustable resistance adjustable side, and the second capacitance is connected the emitter of the first triode with one end after the 6th resistor coupled in parallel,
The other end connects the first transistor base, the first transistor emitter connection power supply negative terminal, the collector connection of the first triode
Two input terminals of the second NAND gate, the output terminal of the second NAND gate connect the first diode cathode, the 3rd NAND gate output terminal
Connect the base stage of the second triode all the way after 3rd resistor, another way connects after the 5th resistance, relay normally open contact successively
Motor is connect, power positive end connects motor through relay normally closed contact all the way, connects successively through the 4th capacitance, the 4th resistance all the way
Motor is connect, also connects the second transistor emitter through relay coil all the way, the second transistor collector connection power supply is born
End, the second diode is in parallel with relay coil, and the second diode anode connects the second transistor emitter, the first triode base
Pole connects motor.
Especially, the control circuit includes MC51 microcontrollers.
Especially, first NAND gate, the second NAND gate, the 3rd NAND gate concrete model are CD4093.
Especially, the first triode concrete model is S8050.
Especially, the second triode concrete model is 2SA1306.
Especially, the first diode concrete model is IN4004.
Especially, the second diode concrete model is IN4001.
The utility model proposes a kind of regulating valve with motor protection function, beneficial effect compared with prior art
Fruit is：The electric control valve is equipped with motor protecting circuit, being capable of quick response, cut-out when over current fault occurs for motor
Motor power, high sensitivity, can effectively prevent that high current causes motor to malfunction caused by motor start-up, and then
Avoid motor malfunction damage regulating valve.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, does not form the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the regulating valve structure block diagram with motor protection function that the utility model embodiment 1 provides.
Fig. 2 is the motor protecting circuit schematic diagram that the utility model embodiment 1 provides.
Embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model, is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, Fig. 1 is the regulating valve structure with motor protection function that the utility model embodiment 1 provides
Block diagram.
Regulating valve described in the present embodiment includes control circuit, motor, transmission mechanism and valve body,
The control circuit and electronic mechatronics, send control instruction, specifically include control unit and its corresponding outer
Enclose circuit, the preferred MC51 microcontrollers of described control unit.Control circuit sends control instruction to motor, and control is electronic motor-driven
Make.
The motor is mechanically connected with transmission mechanism, and for the control instruction sent according to control circuit, electric energy is turned
Mechanical energy is turned to, drives transmission mechanism action.One of the important component of motor as regulating valve, if normal work is heavy to closing
Will.In order to ensure the normal work of motor, most electric control valve all specially protects motor.It is existing
The mode protected to regulating valve motor is using electrical equipments such as breaker, electrothermal relay, thermostats, is gone out in motor
Existing overcurrent cuts off protection of the motor power realization to motor when failure, but there are response time length, sensitivity for which
The shortcomings that poor, usually after the over current fault several seconds occurs or motor current considerably beyond threshold range when just rung
Should, motor power is cut off, burn-down of electrical machinery or motor malfunction is frequently resulted in, damages regulating valve.
To solve the above problems, regulating valve described in the present embodiment is separately provided with motor protecting circuit in control circuit.Such as
Shown in Fig. 2, Fig. 2 is the motor protecting circuit schematic diagram that the utility model embodiment 1 provides.The motor protecting circuit bag
Include first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, first adjustable
Resistance RP1, the second adjustable resistance RP2, the 3rd adjustable resistance RP3, the first capacitance C1, the second capacitance C2, the 3rd capacitance C3, the 4th
Capacitance C4, the first diode D1, the second diode D2, the first triode Q1, the second triode Q2, the first NAND gate F1, second
NAND gate F2, the 3rd NAND gate F3 and relay K, wherein, power positive end is successively through the first capacitance C1, first resistor R1 and first
Adjustable resistance RP1 fixing ends connect power supply negative terminal, and the first capacitance C1 is connected the first NAND gate F1 with the common port of first resistor R1
Two input terminals, the output terminal of the first NAND gate F1 connects an input terminal of the 3rd NAND gate F3, the 3rd NAND gate F3's
Another input terminal connects the anode of the first diode D1 all the way, all the way through the 3rd adjustable resistance RP3 fixing ends connection second with
NOT gate F2 output terminals, connect the 3rd adjustable resistance RP3 adjustable sides, also all the way through the 3rd capacitance C3 the first adjustable electrics of connection all the way
The adjustable side of RP1, the adjustable side connection power supply negative terminal of the first adjustable resistance RP1 are hindered, second resistance R2 one end connects power positive end,
The other end connects the first triode Q1 collectors through the second adjustable resistance RP2 fixing ends all the way, and another way connects the second adjustable electric
RP2 adjustable sides are hindered, the second capacitance C2 is connected the emitter of the first triode Q1 with one end after the 6th resistance R6 parallel connections, and the other end connects
Connect the first triode Q1 base stages, the first triode Q1 emitters connection power cathode, the collector connection of the first triode Q1 the
Two input terminals of two NAND gate F2, the output terminal of the second NAND gate F2 connect the first diode D1 cathodes, the 3rd NAND gate F3
Output terminal connects the base stage of the second triode Q2 all the way after 3rd resistor R3, and another way is successively through the 5th resistance R5, relay K
Motor is connected after normally opened contact, power positive end connects motor through relay K normally-closed contacts all the way, all the way successively through the 4th electricity
Hold C4, the 4th resistance R4 connection motor, also all the way through relay coil K connection the second triode Q2 emitters, the two or three
Pole pipe Q2 collectors connect power supply negative terminal, and the second diode D2 is in parallel with relay coil K, and the second diode D2 anodes connect the
Two triode Q2 emitters, the first triode Q1 base stages connection motor.
The preferred embodiment of the present embodiment is first NAND gate, the second NAND gate, the 3rd NAND gate concrete model
For CD4093；The first triode concrete model is S8050；The second triode concrete model is 2SA1306；Described
One diode concrete model is IN4004；The second diode concrete model is IN4001.
The operation principle of the motor protecting circuit is as follows：
In order to avoid producing malfunction in motor start-up procedure, by the first capacitance C1, first resistor R1, the first adjustable resistance
RP1, the first NAND gate F1, the second NAND gate F2 composition power-on protection delay circuits, then during motor start-up, on the first capacitance C1
No-voltage, the first NAND gate F1 output low levels, the 3rd NAND gate F3 output high level, the second triode Q2 cut-offs, relay K
Coil losing electricity, the conducting of relay K normally-closed contacts, motor obtain normal power supply.Charged, the terminal voltage of the first capacitance C1 gradually rises
Height, (namely delay time) first NAND gate F1 upsets output high level when being raised to certain, the 3rd NAND gate F3's is defeated
Go out, the current detection circuit control being made of the second adjustable resistance RP2, second resistance R2, the first triode Q1, the 6th resistance R6
System, current of electric is bigger, and the pressure drop of the 6th resistance R6 is also bigger, and the current collection step voltage of the first triode Q1 is lower, works as motor
When electric current exceedes protective current, the second NAND gate F2 output high level, is delayed through the 3rd adjustable resistance RP3, the 3rd capacitance C3, row
After interference, the 3rd NAND gate F3 output low levels, relay K is acted and self-locking, cuts off motor current supply circuit, protects motor.
If in the delay time that the 3rd adjustable resistance RP3, the 3rd capacitance C3 are formed, electric current drops back to rated value, then the 3rd capacitance C3
On voltage discharge rapidly through the first diode D1, ensure sensitivity.The motor protecting circuit high sensitivity, response speed
It hurry up, when over current fault occurs for motor, can at the first time cut off the power, protect motor, while avoid because of motor
Malfunction damage regulating valve.
The transmission mechanism is mechanically connected with valve body, for driving valve body to act.The biography of transmission mechanism described in the present embodiment
Flowing mode is using appointing in spur gear transmission, worm gear drive, the shake-up of spur gear planet, Forces In The Cycloid Drive, harmonic drive
One kind, can also use the combination of spur gear transmission and worm gear drive.The torque of transmission mechanism output is converted to by trapezoidal thread
Thrust, band moving valve act, and control to adjust the unlatching of valve, close.
The valve body is turned on and off under transmission mechanism driving, and control medium is by the way that its aperture is controlled by control unit.
The technical solution of the utility model, can be fast when over current fault occurs for motor by motor protecting circuit
Speed response, cuts off motor power, high sensitivity, can effectively prevent that high current causes motor caused by motor start-up
Malfunction, and then avoid motor malfunction damage regulating valve.
Above-described embodiment, the purpose of this utility model, technical solution and beneficial effect have been carried out into
One step describes in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, where within the spirit and principles of the present invention, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of regulating valve with motor protection function, it is characterised in that including control circuit, motor, transmission mechanism
And valve body,
The control circuit and electronic mechatronics, for sending control instruction；
The motor is mechanically connected with transmission mechanism, for the control instruction sent according to control circuit, is converted electrical energy into
Mechanical energy, drives transmission mechanism action；
The transmission mechanism is mechanically connected with valve body, for driving valve body to act；
The valve body is used to control medium to pass through；
The control circuit includes motor protecting circuit, the motor protecting circuit and electronic mechatronics, for electricity
Motivation overcurrent is protected, and specifically includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th electricity
Resistance, the first adjustable resistance, the second adjustable resistance, the 3rd adjustable resistance, the first capacitance, the second capacitance, the 3rd capacitance, the 4th electricity
Appearance, the first diode, the second diode, the first triode, the second triode, the first NAND gate, the second NAND gate, the 3rd with it is non-
Door and relay, wherein, power positive end connects power supply with the first adjustable resistance fixing end and bears through the first capacitance, first resistor successively
The common port of end, the first capacitance and first resistor connects two input terminals of the first NAND gate, and the output terminal of the first NAND gate connects
Connecing an input terminal of the 3rd NAND gate, another input terminal of the 3rd NAND gate connects the anode of the first diode all the way, and one
Tri- adjustable resistance fixing ends of Lu Jing connect the second NAND gate output terminal, connect the 3rd adjustable resistance adjustable side all the way, also have one
The adjustable side of tri- the first adjustable resistances of capacitance connection of Lu Jing, the adjustable side connection power cathode of the first adjustable resistance, the second electricity
One end connection power positive end is hindered, the other end connects the first transistor collector, another way through the second adjustable resistance fixing end all the way
The second adjustable resistance adjustable side is connected, the second capacitance is connected the emitter of the first triode with one end after the 6th resistor coupled in parallel, separately
One end connects the first transistor base, the first transistor emitter connection power supply negative terminal, the collector connection the of the first triode
Two input terminals of two NAND gates, the output terminal of the second NAND gate connect the first diode cathode, the 3rd NAND gate output terminal warp
The base stage of the second triode is connected after 3rd resistor all the way, another way connects after the 5th resistance, relay normally open contact successively
Motor, power positive end connect motor through relay normally closed contact all the way, are connected successively through the 4th capacitance, the 4th resistance all the way
Motor, also connects the second transistor emitter through relay coil all the way, and the second transistor collector connects power supply negative terminal,
Second diode is in parallel with relay coil, and the second diode anode connects the second transistor emitter, the first transistor base
Connect motor.
2. the regulating valve according to claim 1 with motor protection function, it is characterised in that the control circuit bag
Include MC51 microcontrollers.
3. the regulating valve according to claim 1 with motor protection function, it is characterised in that described first with it is non-
Door, the second NAND gate, the 3rd NAND gate concrete model are CD4093.
4. the regulating valve according to claim 1 with motor protection function, it is characterised in that first triode
Concrete model is S8050.
5. the regulating valve according to claim 1 with motor protection function, it is characterised in that second triode
Concrete model is 2SA1306.
6. the regulating valve according to claim 1 with motor protection function, it is characterised in that first diode
Concrete model is IN4004.
7. the regulating valve according to claim 1 with motor protection function, it is characterised in that second diode
Concrete model is IN4001.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938259.XU CN207278995U (en) | 2017-07-31 | 2017-07-31 | A kind of regulating valve with motor protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938259.XU CN207278995U (en) | 2017-07-31 | 2017-07-31 | A kind of regulating valve with motor protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278995U true CN207278995U (en) | 2018-04-27 |
Family
ID=61986676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720938259.XU Active CN207278995U (en) | 2017-07-31 | 2017-07-31 | A kind of regulating valve with motor protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923385A (en) * | 2018-08-23 | 2018-11-30 | 明光市鸿晟机电设备制造有限公司 | A kind of motor driving protection circuit of steering controller |
-
2017
- 2017-07-31 CN CN201720938259.XU patent/CN207278995U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923385A (en) * | 2018-08-23 | 2018-11-30 | 明光市鸿晟机电设备制造有限公司 | A kind of motor driving protection circuit of steering controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100561813C (en) | Method for restraining late-class circuit hot swap impact current and buffering asynchronous start circuit thereof | |
| CN102629751B (en) | Over-current protection circuit | |
| CN101834558A (en) | Vector controller of alternating current asynchronous motor | |
| CN102571053A (en) | Control method for alternate current solid power switch and switch device | |
| CN105322522A (en) | Method and circuit for restraining surge current of DC electrical source | |
| CN207278995U (en) | A kind of regulating valve with motor protection function | |
| CN111180281A (en) | Automatic overcurrent circuit breaking protector | |
| CN102946106B (en) | Silicon controlled rectifier combination switch | |
| CN107907777A (en) | A kind of short-circuit detecting circuit and method, control circuit | |
| CN201656898U (en) | AC asynchronous motor vector controller | |
| CN111029226B (en) | Prevent expense accuse circuit breaker control system and expense accuse circuit breaker of destruction | |
| WO2024031994A1 (en) | Current backflow preventing circuit structure | |
| CN112564468A (en) | Passive discharge circuit of low-voltage system and use method thereof | |
| CN200976576Y (en) | Plane solid state relay for short circuit and overload protection | |
| CN112165076A (en) | Lithium battery secondary overvoltage overcharge-prevention protection system and control method | |
| CN207320817U (en) | Intelligent electric machine breaker used for electric vehicle | |
| CN103023044B (en) | Combination switch with intelligent zero-crossing switching function | |
| CN201523209U (en) | Load over-current protection circuit for automobile electrical appliance | |
| CN214674969U (en) | H-bridge bidirectional motor driving circuit based on two paths of AND gates | |
| CN109799453B (en) | Switch electromagnetic valve control monitoring circuit and method | |
| CN113258917A (en) | Control device for monitoring and protecting electric equipment | |
| CN218733952U (en) | Current pulse output control and safety protection diagnosis circuit | |
| CN205176703U (en) | Transmitter water route control panel | |
| CN214544158U (en) | Brushless controller of electric bicycle | |
| CN205847213U (en) | A kind of Drive Protecting Circuit being applied to all-controlling power electronics device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |