CN109340403A - A kind of motor-driven valve - Google Patents
A kind of motor-driven valve Download PDFInfo
- Publication number
- CN109340403A CN109340403A CN201811540878.9A CN201811540878A CN109340403A CN 109340403 A CN109340403 A CN 109340403A CN 201811540878 A CN201811540878 A CN 201811540878A CN 109340403 A CN109340403 A CN 109340403A
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- China
- Prior art keywords
- valve
- cavity
- motor
- iron core
- dynamic iron
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention provides a kind of motor-driven valves, it includes the Electric Actuator cavity separated by magnetic conductive board and the valve cavity flowed through for medium, at least one medium entrance and at least one media outlet are provided on valve cavity, it is provided with valve seat between medium entrance and media outlet, is furnished with a valve head sealed engagement therewith on valve seat；Electromagnetic coil is provided in Electric Actuator cavity, dynamic iron core and fixed core are coaxially arranged in the inner cavity of electromagnetic coil, spring is provided between dynamic iron core and fixed core, dynamic iron core is fixed on valve rod, and dynamic iron core is located in the back pressure cavity of sealing, valve rod passes through magnetic conductive board and is fixedly connected with valve head, and the flow-guiding channel of connection valve cavity and back pressure cavity is provided on valve rod.The problem of solving motor-driven valve in the prior art, structure is complicated, and under no power operating condition, the rated pressure that medium entrance closed state can be born is low, poor reliability.
Description
Technical field
The present invention relates to motor-driven valve technical field, in particular to a kind of control by on/off switches its operation
The motor-driven valve of state.
Background technique
Electric operator and valve are connected becomes motor-driven valve after installation and debugging.Motor-driven valve use electric energy as
Power drives valve to connect electric operator, realizes switch, the adjusting movement of valve.Pipeline medium is carried out to reach
Switch or the purpose adjusted.It is mainly used in automotive thermal tube reason and air-conditioning system.
In the prior art, the commutation of motor-driven valve is usually the energization for the electromagnet being located on different medium channel by control
To adsorb valve body, reaching makes valve body be located at different medium channels, to control the on-off of each medium channel.But there is structure
Complexity, the low problem of control sensitivity.
And when by the motor-driven valve on-off or commutation for controlling high-pressure medium on high-pressure medium channel, it is located at high pressure and is situated between
Valve head and valve seat in matter, it will usually since its pressure by high-pressure medium acts on, and lead to the opposite position of valve head and valve seat
Change is set, is closed when may cause valve head and be opened when should being closed with valve seat, and should open,
To influence the reliability of motor-driven valve.
Summary of the invention
For the above problem in the prior art, the present invention provides a kind of motor-driven valves, solve electricity in the prior art
Dynamic valve arrangement is complicated, and under no power operating condition, the rated pressure that medium entrance closed state can be born is low, poor reliability asks
Topic.
In order to achieve the above object of the invention, The technical solution adopted by the invention is as follows:
There is provided a kind of motor-driven valve comprising the Electric Actuator cavity separated by the magnetic conductive board that bottom is provided with gasket
With the valve cavity flowed through for medium, at least one medium entrance and at least one media outlet are provided on valve cavity, are situated between
It is provided with valve seat between matter import and media outlet, is furnished with a valve head sealed engagement therewith on valve seat；
It is provided with electromagnetic coil in Electric Actuator cavity, dynamic iron core is coaxially arranged in the inner cavity of electromagnetic coil and is determined
Iron core is provided with spring between dynamic iron core and fixed core, and dynamic iron core is fixed on valve rod, and dynamic iron core is located at the back pressure of sealing
In chamber, valve rod passes through magnetic conductive board and is fixedly connected with valve head, and the flow-guiding channel of connection valve cavity and back pressure cavity is provided on valve rod.
Further, the valve rod inner hole axially penetrated through along it is provided on valve rod, valve rod is provided with adjacent to one end of valve head
Through the first deflector hole of its side wall, it is provided with the second deflector hole through its side wall on the valve rod in back pressure cavity, first
Deflector hole, the second deflector hole and valve rod inner hole constitute flow-guiding channel.
Further, one end of dynamic iron core towards fixed core is provided with cone boss, and fixed core is towards one end of dynamic iron core
Conical indents corresponding with cone boss are provided with, spring is located in conical indents.Contact surface between dynamic iron core and fixed core
Be designed to the form of cone boss and conical indents cooperation, increase contact area, also increase dynamic iron core and fixed core it
Between adsorption capacity, to increase the reliability of motor-driven valve；And after dynamic iron core and fixed core absorption, the contact surface of taper can
Its play in the radial direction is prevented, ensure that valve head and valve seat contraposition are accurate, to ensure that the leakproofness of valve head and valve seat.
Further, bolster is provided at the top of valve rod.Bolster, which can be avoided, loses magnetic force by bullet in dynamic iron core
Other positions that motor-driven valve is touched after spring pop-up generate noise pollution and damage motor-driven valve.
Further, Electric Actuator cavity is surrounded by magnetic conductive cylinder and magnetic conductive board.Positioned at leading for electromagnetic coil both ends
Magnetic cylinder is all made of permeability magnetic material with magnetic conductive board and is made, and can integrate magnetic circuit, enhances the magnetic force of dynamic iron core and fixed core, to improve electricity
The sensitivity and reliability of dynamic valve.
Further, fixed core is fixed on the top surface of magnetic conductive cylinder, is provided in fixed core and to be axially moveable for valve rod
Pilot hole, dynamic iron core are located at the lower section of fixed core.Pilot hole in fixed core can be such that valve rod axially vertically moves always,
To guarantee the accurate fit of the valve head and valve seat that are connected as one with valve rod, to improve the reliability of motor-driven valve.
Further, plug is provided on magnetic conductive cylinder, electromagnetic coil and diodes in parallel are electrically connected on plug later.It inserts
Head is for connecting external control system, to control the power on/off of electromagnetic coil, to control cutting for motor-driven valve interior media channel
It changes；Diode in parallel is used for protection power source.
Further, valve head and valve seat are cooperated by conical surface seal, and the both ends of valve seat, which are provided with, to be sealed with valve head
The conical surface of cooperation.Conical surface seal performance is good, is not easy to accumulate impurity, high sealing reliability；Valve seat both ends are provided with the conical surface, can be with
The conical surface of different directions and valve body is selected to cooperate according to the actual use demand of motor-driven valve, to increase the application of this motor-driven valve
Range.
Further, it is formed integrally formed with several mounting ears on the shell of valve cavity, several mounting ears are symmetrical arranged
In on shell, being provided with mounting hole on mounting ear, becket is embedded in mounting hole.With the integrally formed mounting ear of shell, make
Installation is more firm；Mounting ear is symmetrical arranged, and increases this motor-driven valve by the constraint of installation direction, by answering for this motor-driven valve
Use range；The intensity of mounting hole can be enhanced in the becket being embedded in mounting hole, and the squeeze crack when being packed into connector is avoided to install
Hole.
The invention has the benefit that this motor-driven valve can control multiple medium channels by an electromagnetic coil simultaneously
Commutation, simplifies structure, so that motor-driven valve more lightweight, also just reduces the out of order probability of motor-driven valve.
In the case where electromagnetic coil power-off, when high-pressure medium impacts valve head, high-pressure medium is logical from the water conservancy diversion on valve rod
Road enters in back pressure cavity, balances the pressure that high-pressure medium gives valve head to one pressure of dynamic iron core being located in back pressure cavity,
Since dynamic iron core and valve head are in same medium, so that the two opposite power are equal always, thus cancel out each other, and
In addition the elastic force between valve head and valve seat there are one spring seals cooperation by it always, so that this motor-driven valve can be applied to height
It presses in medium, under no power operating condition, the rated pressure that medium entrance closed state can be born is big, and improve this motor-driven valve can
By property.
Detailed description of the invention
Fig. 1 is the explosive view of motor-driven valve.
Fig. 2 is the first schematic diagram of application structure of motor-driven valve.
Fig. 3 is two kinds of schematic diagram of application structure of motor-driven valve.
Fig. 4 is the third schematic diagram of application structure of motor-driven valve.
Wherein, 1, Electric Actuator cavity；2, valve cavity；21, medium entrance；22, media outlet；23, mounting ear；
231, mounting hole；232, becket；3, valve seat；4, valve head；5, valve rod；51, flow-guiding channel；511, the first deflector hole；512,
Two deflector holes；513, valve rod inner hole；6, dynamic iron core；61, conical indents；7, fixed core；71, cone boss；72, pilot hole；8,
Electromagnetic coil；9, magnetic conductive board；91, gasket；10, spring；11, bolster；12, magnetic conductive cylinder；13, plug；14, back pressure cavity.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
As shown in Figure 1, the motor-driven valve includes being provided with the magnetic conductive board 9 of gasket 91 by bottom to seal electronic holding of separating
Row device cavity 1 and the valve cavity 2 flowed through for medium.Medium entrance 21 and medium have been set as needed on valve cavity 2
Outlet 22, forms medium channel between medium entrance 21 and media outlet 22, is exported according to different medium import and different medium
Between permutation and combination, different medium channels can be formed, for convenience to each medium channel carry out on-off control,
It is embedded with a valve seat 3 on each medium channel, is furnished with a valve head 4 sealed engagement therewith on valve seat 3, passes through control
Valve head 4 controls the on-off of the medium channel at a distance from being spaced between valve seat 3.
The center of valve seat 3 is machined with a perforative hole, and the both ends in the hole are the outward conical surface, i.e. loudspeaker
Mouthful.There is the conical surface corresponding with the horn mouth on valve seat 3 on valve head 4, the conical surface of the cooperation can after valve seat 3 and valve head 4 are adjacent to
Enough achieve the effect that sealing.So guaranteeing that valve head 4 and coming into full contact with for valve seat 3 are the key that guarantee this motor-driven valve leakproofness.
Valve head 4 is fixedly sheathed on valve rod 5, and valve rod 5 passes through magnetic conductive board 9 and is passed into Electric Actuator cavity 1.It is electronic to hold
It is fixed with an electromagnetic coil 8 in row device cavity 1, the winding situation of electromagnetic coil 8 and situations such as generating the relationship of magnetic force be
Very mature technology in the prior art, details are not described herein again.In order to integrate the magnetic circuit of electromagnetic coil 8, it is encircled into Electric Actuator
The magnetic conductive board 9 and magnetic conductive cylinder 12 of cavity 1 are all made of permeability magnetic material and are made, such as ferrite material.
Magnetic conductive board 9, magnetic conductive cylinder 12 and valve cavity 2 are connected by screw to and are integrated, magnetic conductive board 9 and valve cavity 2 it
Between be clamped with the gasket 91 of rubber material, have the hole passed through for valve rod 5 in the middle part of gasket 91.Be equipped on magnetic conductive cylinder 12 with
The plug 13 of external electrical connections.Electromagnetic coil 8 and diodes in parallel are electrically connected on plug 13 later.Plug 13 and external control
System connection, for controlling the on-off of electric current in electromagnetic coil 8.
It is coaxially arranged with dynamic iron core 6 and fixed core 7 in the inner cavity of electromagnetic coil 8, when electromagnetic coil 8 being made to be powered, moves iron
Core 6 and fixed core 7 can be magnetized.Fixed core 7 is fixed in Electric Actuator cavity 1, and dynamic iron core 6 is solid by interference fit
Surely it is socketed on valve rod 5, valve head 4 is made to follow the movement of dynamic iron core 6 under the drive of valve rod 5 and move.
One end of dynamic iron core 7 towards fixed core 6 is provided with cone boss 71, and fixed core 6 is arranged towards one end of dynamic iron core 7
There are conical indents 61 corresponding with cone boss 71.Spring 10 is pressure spring, and set is located in conical indents 61 on valve rod 5,
Fixed core 6 and dynamic iron core 7 have extruding to spring 10, the extruding force and fixed core that spring 10 is subject to when electromagnetic coil 8 is not powered on
Mounting distance between 6 and dynamic iron core 7 is in inverse ratio, and valve head 4 is cooperated by the extruding force and valve seat 3 sealing of spring.
When electromagnetic coil 8 is powered, electric magnetisation, fixed core 7 and dynamic iron core 6 are in the magnetic field of the generation of electromagnetic coil 8, quilt
Magnetization, according to the opposite one end magnetic pole of Ampere's law fixed core 7 and dynamic iron core 6 on the contrary, generating attraction, fixed core 7 is inhaled
Priming iron core 6, further compressed spring 10, valve head 4 follow dynamic iron core 6 to move, to change the on-off shape of medium channel
State.After power-off, compressed spring 10 pops into position dynamic iron core 6.Magnetic conduction is hit in the process to prevent dynamic iron core 6 to be shot back
Cylinder 12 generates noise and vibration even damage motor-driven valve, is fixed with bolster 11 between 6 top of dynamic iron core and magnetic conductive cylinder 12,
Bolster 11 is rubber pad, for absorbing the momentum of the dynamic iron core 6 bounced by spring 10.
Valve rod 5 is cylindrical bar, is provided with the valve rod inner hole 513 axially penetrated through along it on valve rod 5, i.e. valve rod 5 is that section is
The cylinder of annular shape.Valve rod 5 is provided with the first deflector hole 511 through its side wall adjacent to one end of valve head 4, is located at back pressure cavity
The second deflector hole 512 through its side wall, the first deflector hole 511, the second deflector hole 512 and valve are provided on valve rod 5 in 14
Bar inner hole 513 constitutes flow-guiding channel 51.The specific location of deflector hole 511 need to design different according to the practical service environment of motor-driven valve
Position the medium for impacting valve head 4 is introduced back pressure cavity by flow-guiding channel 51 the purpose is on the medium channel of closing
In 14, the overall structure both ends for forming valve head 4, valve rod 5 and dynamic iron core 7 pressure opposite by same medium, from
And medium is balanced to the impact force of valve head 4, avoid motor-driven valve from failing under the percussion of medium.
It is tightly sleeved O-ring seal on the external cylindrical surface of dynamic iron core 6 and fixed core 7, O-ring seal passes through dynamic iron core
6 or fixed core 7 and wind electromagnetic coil 8 skeleton between extruding and seal, thus the cylinder between two O-ring seals
Back pressure cavity 14 is formed in space.
In order to enable the installation of this motor-driven valve is not limited by direction, the shell for constituting valve cavity 2 integrally formed with
Mounting ear 23, mounting ear 23 is symmetrical in 180 °, parallel with medium entrance 21 or media outlet 22, is provided on mounting ear 23
Mounting hole 231.Shell due to being usually formed valve cavity 2 is formed in mould plastic part, connector when installing in order to prevent
Squeeze crack mounting ear 23 is embedded with becket 232, in mounting hole 231 to increase the intensity of mounting hole 232.
As shown in Fig. 2, the motor-driven valve is mainly used for controlling the on-off of medium for the embodiment 1 of this motor-driven valve application, iron is moved
Core 6 is located at the lower section of fixed core 7.It only include a medium entrance 21 and a media outlet 22, medium entrance on valve cavity 2
21 are located at the lower end of media outlet 22, and the horn mouth sealing of valve head 4 and 3 upper end of valve seat cooperates, and such motor-driven valve is only used for controlling
The on-off of medium.
When electromagnetic coil 8 is not powered on, the valve that valve head 4 is formed with valve seat 3 is in close state, and high-pressure medium is from medium
Import 21 enters, and stops it to be advanced further by valve head 4, at this time since the high pressure of media interior can apply the bottom surface of valve head 4
One upwards pressure, but high-pressure medium can enter back pressure cavity by being located at the first deflector hole 511 of 4 bottom of valve head again simultaneously
In 14, high-pressure medium also can be located at back pressure cavity 14 in dynamic iron core 6 top surface apply a downward pressure, to almost put down
Weighing apparatus falls the power that high-pressure medium applies valve head 4, and the two power are always no matter how high the pressure of the inside of high-pressure medium is
Almost equal, avoiding high-pressure medium and washing valve head 4 open leads to valve invalidation.
When electromagnetic coil 8 is powered, fixed core 7 and dynamic iron core 6 are magnetized, and fixed core 7 attracts dynamic iron core 6 and is adsorbed on one
It rises, while compressed spring 10, the medium in back pressure cavity 14, which is squeezed, to be pushed back in valve cavity 2, and valve is opened at this time, and medium is from medium
22 outflow of outlet.
As shown in figure 3, for the embodiment 2 of this motor-driven valve application, the flow direction for being mainly used for switchable dielectric of the motor-driven valve is moved
Iron core 6 is located at the lower section of fixed core 7.A mouthfuls are medium entrance 21, and B mouthfuls and C mouthfuls are media outlet 22.A mouthfuls and B mouthfuls constitute first
The horn mouth of medium channel, valve head 4 and 3 upper end of valve seat on the channel cooperates, and when off-position, which is closed；A mouthfuls and C
Mouth is second medium channel, and the horn mouth of valve head 4 and 3 lower end of valve seat on the channel cooperates, and under off-position, which is beaten
It opens.
In the power-off state, high-pressure medium enters from A mouthfuls, flows out from C mouthfuls, high-pressure medium is to the valve on first medium channel
First 4 bottom surface applies one and upwards pressure.Valve seat and second medium on first medium channel is arranged in first deflector hole 511
Between valve seat on channel, high-pressure medium is imported into standby pressure chamber 14 by the first deflector hole 511, and principle is balanced with embodiment 1
Force of the high-pressure medium to the valve head 4 on first medium channel.
In the energized state, fixed core 7 adsorbs dynamic iron core 6, and band ovable valve stem 5 moves up, and the first medium channel made is opened, the
Second medium channel is closed, and medium is flowed out from B mouthfuls, to change medium flow direction, while the medium in back pressure cavity 14 is extruded.Again
When power-off, dynamic iron core 6 is popped into position by spring, and first medium channel is closed, and second medium channel is opened, and medium enters once more
Into standby pressure chamber 14, this motor-driven valve is protected, its failure is prevented, to be the flow direction of controllable medium by power on/off.
As shown in figure 4, for this motor-driven valve application embodiment 3, the motor-driven valve be mainly used for switchable dielectric forward to, move
Iron core 6 is located at the top of fixed core 7.A mouthfuls are media outlet 22, and B mouthfuls and C mouthfuls are medium entrance 21.B mouthfuls and A mouthfuls constitute first
The horn mouth of medium channel, valve head 4 and 3 lower end of valve seat on the channel cooperates, and when off-position, which is closed；C mouthfuls and A
Mouth is second medium channel, and the horn mouth of valve head 4 and 3 upper end of valve seat on the channel cooperates, and under off-position, which is beaten
It opens.
In the power-off state, the high-pressure medium on the medium pipeline of C mouthfuls of connections enters from C mouthfuls, flows out from A mouthfuls；B mouthfuls of connections
Medium pipeline on medium from B mouthfuls enter, by first medium channel valve head 4 blocking can not reach A mouthfuls.Due to first medium
The upper and lower ends of valve head 4 on channel and media contact, can pass through the pressure for controlling the medium that two medium entrances are passed through
This electronic defective valve is avoided close to equal.
But since valve rod 5 needs to move up and down, so valve rod 5 and magnetic conductive board 9 and existing between fixed core 7
Gap, the medium entered from B mouthfuls can enter standby pressure chamber 14 by the gap between valve rod 5 and magnetic conductive board 9 and fixed core 7
In, medium can be imported into second medium channel by the second deflector hole 512 in time, to standby pressure 14 row pressure of chamber.
In the energized state, fixed core 7 adsorbs dynamic iron core 6, and band ovable valve stem 5 moves down, and the first medium channel made is opened, the
Second medium channel is closed, and the medium on the medium pipeline of B mouthfuls of connections enters from B mouthfuls, is flowed out from A mouthfuls, to change medium
Forward to.When powering off again, dynamic iron core 6 is popped into position by spring, and first medium channel is closed, and second medium channel is opened, thus logical
Cross the i.e. controllable medium of power on/off forward to.
Claims (9)
1. a kind of motor-driven valve, which is characterized in that the magnetic conductive board (9) including being provided with gasket (91) by bottom separates electronic
Actuator cavity (1) and the valve cavity (2) flowed through for medium, be provided on the valve cavity (2) at least one medium into
Mouth (21) and at least one media outlet (22), are provided with valve seat between the medium entrance (21) and the media outlet (22)
(3), it is furnished with a valve head (4) sealed engagement therewith on the valve seat (3)；
Electromagnetic coil (8) are provided in the Electric Actuator cavity (1), are coaxially set in the inner cavity of the electromagnetic coil (8)
It is equipped with dynamic iron core (6) and fixed core (7), is provided between the dynamic iron core (6) and fixed core (7) spring (10), it is described dynamic
Iron core (6) is fixed on valve rod (5), and dynamic iron core (6) is located in the back pressure cavity (14) of sealing, and valve rod (5) passes through the magnetic conduction
Plate (9) is fixedly connected with the valve head (4), is provided on the valve rod (5) and is connected to the valve cavity (2) and the back pressure cavity
(14) flow-guiding channel (51).
2. motor-driven valve according to claim 1, which is characterized in that be provided on the valve rod (5) and to be axially penetrated through along it
One end of valve rod inner hole (513), the valve rod (5) neighbouring the valve head (4) is provided with the first deflector hole through its side wall
(511), the second deflector hole (512) through its side wall, institute are provided on the valve rod (5) being located in the back pressure cavity (14)
It states the first deflector hole (511), the second deflector hole (512) and the valve rod inner hole (513) and constitutes the flow-guiding channel (51).
3. motor-driven valve according to claim 1, which is characterized in that the dynamic iron core (7) is towards the one of the fixed core (6)
End is provided with cone boss (71), and one end of fixed core (6) towards the dynamic iron core (7) is provided with and the cone boss
(71) corresponding conical indents (61), the spring (10) are located in the conical indents (61).
4. motor-driven valve according to claim 1, which is characterized in that be provided with bolster at the top of the valve rod (5)
(11)。
5. motor-driven valve according to claim 4, which is characterized in that the Electric Actuator cavity (1) is by magnetic conductive cylinder (12)
It is surrounded with the magnetic conductive board (9).
6. motor-driven valve according to claim 5, which is characterized in that the fixed core (7) is fixed on the magnetic conductive cylinder (12)
Top surface on, the pilot hole (72) being axially moveable for the valve rod (5), the dynamic iron core are provided in the fixed core (7)
(6) it is located at the lower section of the fixed core (7).
7. motor-driven valve according to claim 5, which is characterized in that be provided with plug (13), institute on the magnetic conductive cylinder (12)
It states electromagnetic coil (8) and diodes in parallel is electrically connected on the plug (13) later.
8. motor-driven valve according to claim 1, which is characterized in that the valve head (4) is matched with valve seat (3) by conical surface seal
It closes, the both ends of the valve seat (3) are provided with the conical surface that cooperation can be sealed with the valve head (4).
9. motor-driven valve according to claim 1, which is characterized in that formed on the shell of the valve cavity (2) integrally at
Type has several mounting ears (23), and several mounting ears (23) are symmetrically disposed on the shell, sets on the mounting ear (23)
It is equipped with mounting hole (231), is embedded with becket (232) in the mounting hole (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540878.9A CN109340403B (en) | 2018-12-17 | 2018-12-17 | Electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540878.9A CN109340403B (en) | 2018-12-17 | 2018-12-17 | Electric valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340403A true CN109340403A (en) | 2019-02-15 |
| CN109340403B CN109340403B (en) | 2023-10-20 |
Family
ID=65304631
Family Applications (1)
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| CN201811540878.9A Active CN109340403B (en) | 2018-12-17 | 2018-12-17 | Electric valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413136A (en) * | 2020-10-15 | 2021-02-26 | 深圳市安保科技有限公司 | Proportional flow valve |
| CN114526342A (en) * | 2022-01-13 | 2022-05-24 | 中科首望无水染色智能装备(苏州)有限公司 | Long-range electromagnetic sealing flash explosion device and working method |
| WO2022111440A1 (en) * | 2020-11-24 | 2022-06-02 | 浙江三花汽车零部件有限公司 | Electromagnetic valve |
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| CN109340403B (en) | 2023-10-20 |
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