WO2020143511A1 - Vanne, vanne électronique et structure de fixation de moteur pour vanne électronique - Google Patents

Vanne, vanne électronique et structure de fixation de moteur pour vanne électronique Download PDF

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Publication number
WO2020143511A1
WO2020143511A1 PCT/CN2019/130793 CN2019130793W WO2020143511A1 WO 2020143511 A1 WO2020143511 A1 WO 2020143511A1 CN 2019130793 W CN2019130793 W CN 2019130793W WO 2020143511 A1 WO2020143511 A1 WO 2020143511A1
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WO
WIPO (PCT)
Prior art keywords
motor
positioning
valve
end cover
valve body
Prior art date
Application number
PCT/CN2019/130793
Other languages
English (en)
Chinese (zh)
Inventor
马俊
Original Assignee
浙江银轮机械股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201910013344.9A external-priority patent/CN111412322A/zh
Priority claimed from CN201910016607.1A external-priority patent/CN109611597A/zh
Priority claimed from CN201910425113.9A external-priority patent/CN110056704A/zh
Application filed by 浙江银轮机械股份有限公司 filed Critical 浙江银轮机械股份有限公司
Publication of WO2020143511A1 publication Critical patent/WO2020143511A1/fr

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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
    • 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
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • 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
    • F16K27/10—Welded housings
    • 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
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • 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
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K51/00—Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts

Definitions

  • This application relates to the technical field of valves. Further, this application relates to the technical field of new energy vehicles, in particular to the field of electronic valve products used in thermal management systems of new energy vehicles, specifically a valve, an electronic valve, and an electric motor for an electronic valve Fixed structure.
  • Electronic valve products generally include two accessories, a flow control device and a power device.
  • the flow control device includes a valve core for controlling the flow direction and flow of the fluid medium, so the flow control device generally needs to be installed in a liquid medium environment, and the power device generally includes a motor
  • the original electric components such as the control board need to be installed in a dry environment.
  • a magnetic coupling is generally used to connect the power device and the flow control device to achieve power transmission
  • the static seal is achieved, which better avoids the problem of liquid medium leakage.
  • the present application provides a valve, which can at least solve one of the technical problems of low assembly efficiency due to high coaxiality requirements and high assembly precision requirements of the two valves during assembly.
  • the present application provides a valve, including: a housing, and a power unit and a valve core installed in the housing, the valve further includes an active magnetic member connected to the power unit and connected to the valve core Passive magnetic parts on the
  • the active magnetic force component has an active magnetic force surface, and the extending direction of the active magnetic force surface is perpendicular to the axial direction of the output shaft of the power unit.
  • the passive magnetic force component has a passive magnetic force surface, and the active magnetic force surface and the passive magnetic force The surfaces are oppositely arranged to transmit the power generated by the power unit to the valve core through the magnetic force between the active magnetic member and the passive magnetic member.
  • the active magnetic force surface and the passive magnetic force surface are both flat, and the active magnetic force surface is parallel to the passive magnetic force surface.
  • the beneficial effects of the technical solution include at least: relative to making the active magnetic force surface and the passive magnetic force surface arc-shaped or other non-planar forms, designing the active magnetic force surface and the passive magnetic force surface into two parallel planes can be used to form The space required for the active magnetic force surface and the passive magnetic force surface is minimized, thereby reducing the space occupied by the active magnetic force component and the passive magnetic force component respectively; and, the active magnetic force surface and the passive magnetic force surface can be increased as close as possible to increase the active
  • the magnetic force between the magnetic part and the passive magnetic part reduces the space occupied by the active magnetic part and the passive magnetic part and the distance between the two, providing a mounting position for other parts in the valve, so that each part can be more
  • the compact and reasonable layout reduces the volume of the valve.
  • the active magnetic member and the passive magnetic member have the same size.
  • the beneficial effects of the technical solution include at least: in this way, the active magnetic member and the passive magnetic member can be formed using the same mold, without having to provide different specifications of molds for two different specifications of magnetic components, thereby reducing production costs, Save the production process.
  • the active magnetic member and the passive magnetic member are both circular members, and the circular member includes a plurality of sector-shaped magnetic blocks distributed in the circumferential direction of the circular member and connected in sequence.
  • the number of the sector magnetic blocks is greater than or equal to four.
  • the active magnetic member and the passive magnetic member are both ring members.
  • the beneficial effects of the technical solution include at least: This allows the active magnetic member and the passive magnetic member to be respectively fitted on the corresponding mounting shaft when installing the active magnetic member and the passive magnetic member, which is convenient for installation and improves the assembly efficiency; in addition, Compared with designing the active magnetic member and the passive magnetic member into a disc shape or other circular structures, designing the two into a ring shape can reduce the materials used for the active magnetic member and the passive magnetic member, and further reduce production costs.
  • a first accommodating cavity and a second accommodating cavity are formed in the housing, the power unit and the active magnetic member are installed in the first accommodating cavity, the valve core and the passive magnetic member Installed in the second accommodating cavity, the housing includes a partition that separates the first accommodating cavity and the second accommodating cavity, and the extension direction of the partition is perpendicular to the output shaft of the power unit .
  • the beneficial effects of the technical solution include at least: since the active magnetic force surface and the passive magnetic force surface are arranged oppositely, the active magnetic member and the passive magnetic member can be separated only by forming the partition into a structure such as a thin plate or a sheet , Reduces the volume and space occupied by the partition, and can make the active magnetic member and the passive magnetic member as close to the partition as possible, so as to reduce the distance between the active magnetic member and the passive magnetic member, and thus the active magnetic member and the magnetic member A sufficiently large magnetic force can be generated between passive magnetic members.
  • a first anti-wear boss for separating the partition and the active magnetic member is formed on the active magnetic member.
  • the beneficial effects of this technical solution include at least: In order to generate a sufficiently large magnetic force between the active magnetic member and the passive magnetic member, the active magnetic force surface needs to be placed as close as possible to the partition, in order to make the active magnetic member difficult to cause during movement Contact with the separator produces wear to prolong the service life of the active magnetic member, so that the active magnetic member and the separator are separated, and by using the first anti-wear boss in the collision between the active magnetic member and the separator may occur Blocking, can better avoid possible contact between the active magnetic member and the separator.
  • the gear train assembly includes a first-stage transmission member that directly receives power generated by the power unit, and the passive magnetic member is installed at the first stage Transmission parts.
  • the beneficial effects of the technical solution include at least: among the transmission members of the gear train assembly, the torque required to move the first-stage transmission member is minimized, so the passive magnetic member is installed on the first-stage transmission member to enable the active magnetic force
  • the magnetic force generated between the component and the passive magnetic component is sufficient to realize the synchronous movement of the first-stage transmission component driven by the power unit, thereby ensuring the continuous synchronous motion of the active magnetic component and the passive magnetic component.
  • a mounting seat is provided in the housing, and the gear train assembly includes an Nth-stage transmission member, and the Nth-stage transmission member is installed on the installation seat to attach the Nth-stage transmission member Isolated from the housing, the N is a natural number.
  • the beneficial effects of this technical solution include at least: installing the Nth-stage transmission member through the mounting seat, there is no need to make holes in the wall of the casing for the installation of the Nth-stage transmission member, thereby avoiding the holes in the wall of the casing
  • the wall of the housing becomes thinner, or the medium leaks at the opening.
  • the Nth-stage transmission member is a first-stage transmission member, and a second anti-wear boss is formed on the passive magnetic member to separate the mounting seat and the passive magnetic member.
  • the beneficial effects of the technical solution include at least: the provision of the second anti-wear boss can prevent the passive magnetic member from colliding with the mounting seat during the movement, thereby reducing the possibility of passive magnetic member wear and prolonging the passive The service life of magnetic parts.
  • the gear train assembly includes a final-stage transmission member connected to the valve core, and the final-stage transmission member and the valve core are integrally formed as a valve core unit.
  • the beneficial effects of the technical solution include at least: not only saving the assembly process of the valve, but also manufacturing the valve core unit as an integrated structure at the same time when manufacturing the valve core, and also saving the manufacturing process.
  • a dustproof part is formed on the valve core unit, a communication channel is formed in the housing, and the dustproof part is located in the communication channel.
  • the beneficial effects of the technical solution include at least: through the setting of the dustproof portion on the valve core unit, the dust in the medium can be reduced or even prevented from entering the gear train assembly from the communication channel, thereby avoiding the transmission effect of the dust on the gear train assembly as much as possible And adversely affect the service life.
  • the last-stage transmission member is a sector gear.
  • the beneficial effects of this technical solution include at least: making the final-stage transmission member a sector gear, which not only can ensure the effective transmission of power, but also reduces the gear material and saves costs, and because the sector gear is relatively small, it is The other components in the valve save installation space, make the arrangement of the components in the valve more compact and reasonable, and then reduce the space occupied by the valve.
  • the beneficial effects of the technical solution provided by the present application include at least: the valve provided by the present application realizes the power transmission between the power unit and the valve core through the magnetic force between the active magnetic force surface and the passive magnetic force surface, and only requires the active magnetic force during assembly
  • the face-to-face and passive magnetic force can be arranged face-to-face and generate sufficient magnetic force to realize power transmission. Since the coaxiality between the active magnetic member and the passive magnetic member is low, assembly efficiency can be improved.
  • This application is to solve the technical problems in the prior art, and aims to provide an improved electronic valve, which can at least one of the technical effects of improving the overall performance of the product through the laser welding process.
  • an electronic valve including a valve body, an upper end cover and a lower end cover, the upper part of the valve body is connected to the upper end cover, and the lower part of the valve body is connected to the lower end cover,
  • the upper end cover and/or the lower end cover are fixed to the valve body by laser welding; and of the two components welded by laser, one of the components is made of a light-transmitting material, and the other component is made of a light-absorbing material.
  • the end cover is connected to the valve body by laser welding. Since laser welding is welding in a pressureless state, there will be no common phenomena such as scratches, cracks or cracks on the surface of the product, and the product is qualified. High rate and good sealing performance; at the same time, no welding slag is generated during the welding process, the appearance of the product is good, and the size of the product can be guaranteed.
  • the upper end cover and the lower end cover can be fixed to the valve body by laser welding, and the other components are still connected by ultrasonic welding or fasteners.
  • both the upper end cover and the lower end cover are fixed to the valve body by laser welding.
  • the inner surface of the upper end cover is bonded to the upper end surface of the valve body, and the bonded portion is a laser welding surface.
  • the upper end surface of the valve body has outward flanges, which can increase the contact area between the valve body and the upper end cover, which is beneficial to positioning and increase the welding area.
  • the inner surface of the lower end cover is bonded to the lower end surface of the valve body, and the bonded portion is a laser welding surface.
  • the lower end surface of the valve body has an outward flange, which can increase the contact area between the valve body and the lower end cover, which is beneficial to positioning and increase the welding area.
  • the positioning between the upper portion of the valve body and the upper end cover is achieved through cooperation of a pair of positioning pin shafts and positioning shaft holes.
  • one of the positioning pin shafts is circular and the other is elliptical, and the pair of positioning shaft holes are circular holes with a diameter slightly larger than the pin shaft, which can avoid over-positioning.
  • valve body uses a light-absorbing material
  • the upper end cover and the lower end cover use a light-transmitting material
  • valve body uses PA (Polyamide, polyamide) plastic, PPA (Polyphthalamide) plastic, or PPS (Polyphenylene Sulfide) plastic.
  • PA Polyamide, polyamide
  • PPA Polyphthalamide
  • PPS Polyphenylene Sulfide
  • the upper end cover and the lower end cover are made of PA9T plastic, and a light-transmitting carrier is added, and the light transmittance is greater than 20%.
  • the light transmittance of the end cover material is 50%-60%.
  • valve body and the end cover are made of the same material, and a light-transmitting carrier is added to the end cover material to make it have a certain light transmittance to meet the requirements of laser welding. Since the two parts of laser welding have the same material, the closer the melting point, the stronger the welding strength.
  • the laser welding is heat conduction welding or laser deep welding.
  • the principle of thermal conduction laser welding is: laser radiation heats the surface to be processed, and the surface heat diffuses to the inside through thermal conduction.
  • the laser parameters such as the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool .
  • Laser deep penetration welding generally uses continuous laser beams to complete the material connection, and its energy conversion mechanism is completed through the "small hole” structure. Under sufficiently high power density laser irradiation, the material evaporates and forms small holes. This small hole filled with steam is like a black body, absorbing almost all the energy of the incident beam. The equilibrium temperature in the cavity is about 2500C. Heat is transferred from the outer wall of the high-temperature cavity, melting the plastic surrounding the cavity. The small holes are filled with high-temperature steam generated by the continuous evaporation of the wall material under the beam of light. The four walls of the small holes are surrounded by molten plastic and the liquid plastic is surrounded by solid materials.
  • the energy is first (Deposited on the surface of the workpiece, then transported to the inside by transfer).
  • the liquid flow outside the hole wall and the surface tension of the wall layer are consistent with the steam pressure continuously generated in the hole cavity and maintain a dynamic balance.
  • the light beam continuously enters the small hole, and the material outside the small hole is continuously flowing. As the light beam moves, the small hole is always in a stable state of flow. In other words, the small hole and the molten plastic surrounding the hole wall move forward with the speed of the leading beam.
  • the molten plastic fills the gap left by the small hole and condenses, and the weld is formed.
  • a motor fixing structure of an electronic valve includes an upper portion of a valve body and an upper end cover.
  • the upper portion of the valve body and the upper end cover are provided with at least a first motor fixing mechanism and a second motor fixing mechanism.
  • the axes of the first motor and the second motor coincide later.
  • a set of electronic valve body structure can be suitable for the fixing and installation of at least two motors, which can greatly save the cost of mold opening and the development cycle.
  • the two motors can be different types of motors, such as stepper motors and DC motors; they can also be two different types of motors of the same type, which can be flexibly adjusted according to the design and use needs.
  • the present application is not limited to the fixation of two motors, but can also be applied to the fixation of multiple motors, as long as the fixation mechanism of each motor does not interfere with the installation of other motors.
  • the conventional electronic valve drive motors are stepper motor drives and DC motors.
  • the stepper motor is a circular junction, its length is less than the length of the DC motor, and the diameter is greater than the width of the current motor;
  • the DC motor is mainly square or square-like structure, its bottom and top are flat, the side is flat or arc surface .
  • the fixing structure of each motor includes a front and rear end surface fixing device, a fuselage fixing device and a bearing fixing device.
  • the motor is interference fit with the front and rear end surface fixing devices; the motor and the body fixing device and the bearing fixing device can be interference fit, or can also be gap fit, for self-adjusting the position of the motor shaft.
  • the bearing fixing device can position the front and rear bearings of the motor at the same time, or can only position the front or rear bearings. For a motor with a circular structure, it is best to provide an anti-rotation device to prevent the motor from rotating during use.
  • the first motor has a circular structure as an example.
  • the first motor fixing mechanism includes a front and rear end surface fixing device, a fuselage fixing device, a bearing fixing device and an anti-rotation device.
  • the front and rear end surface fixing device and the The first motor has an interference fit.
  • the front and rear end surface fixing device of the first motor fixing mechanism includes a front end limiting surface and a rear end limiting surface provided on the upper portion of the valve body and/or the upper end cover. Further, the front end limiting surface is also provided with a slanted rib position, so that the motor can be introduced along the slanted rib position until the inlay is in place to form an interference fit.
  • the body fixing device of the first motor fixing mechanism includes a positioning point, a positioning line or a positioning surface matched with the first motor body, and the positioning point, the positioning line or the positioning surface is provided on a corresponding positioning member On the upper part of the valve body and/or the upper end cover.
  • the positioning members include but are not limited to positioning blocks, positioning bars, positioning columns, claws or similar structures, the number of which is 1 to more, and can be flexibly set according to the structure and position of the positioning members.
  • the positioning member has a profiling groove adapted to the shape of the body of the first motor.
  • the radius of the profiling groove is equal to or slightly larger than the radius of the first motor.
  • the bearing fixing device of the first motor fixing mechanism includes a bearing positioning groove provided on the upper part of the valve body and the upper end cover.
  • bearing positioning grooves There may be two bearing positioning grooves, which are respectively matched with the front and rear bearings of the first motor.
  • there is one bearing positioning groove which is matched with the front bearing of the first motor.
  • the first motor is reliably fixed on the upper part of the valve body and the upper end cover through the positioning device of the body and the front bearing. The space at the rear end of the first motor can be used to install the second motor.
  • the radius of the bearing positioning groove is equal to or slightly larger than the radius of the front bearing of the first motor.
  • the anti-rotation device of the first motor fixing mechanism includes a front mounting panel provided at the front end of the motor, the front mounting panel is provided with at least one lug, and the upper part of the valve body and/or the upper end cover are provided with Describe the slot where the lugs fit.
  • the second motor takes a square structure or a square-like structure as an example, and has at least a bottom plane and a top plane.
  • the second motor fixing mechanism includes a front and rear surface fixing device, a body fixing device, and a bearing fixing device.
  • the front and rear end surface fixing devices are interference fit with the second motor.
  • the front and rear end surface fixing device of the second motor fixing mechanism includes a front end positioning surface and a rear end positioning surface provided on the upper portion of the valve body and/or the upper end cover.
  • the front end positioning surface is also provided with a slanted rib position, so that the motor can be introduced along the slanted rib position until the inlay is in place to form an interference fit.
  • the first motor fixing mechanism and the second motor fixing mechanism share the same front end positioning surface.
  • it can save space, simplify the structure, and avoid interference with the positioning surfaces of other motors when different motors are installed; on the other hand, it can ensure that the axes of different motors coincide.
  • the body fixing device of the second motor fixing mechanism includes a positioning point, a positioning line or a positioning surface matched with the second motor body, and the positioning point, the positioning line or the positioning surface is provided on a corresponding positioning member On the upper part of the valve body and/or the upper end cover.
  • the positioning member includes, but is not limited to, a positioning block, a positioning bar, a positioning column or a jaw, and the number is 1 to multiple.
  • the bearing fixing device of the second motor fixing mechanism includes a bearing positioning groove provided on the upper part of the valve body and the upper end cover.
  • bearing positioning grooves There may be two bearing positioning grooves, which are respectively matched with the front and rear bearings of the second motor.
  • the second motor is reliably fixed on the upper portion of the valve body and the upper end cover by the positioning device of the body and the rear bearing. The space left at the front end of the second motor can be used to install the first motor.
  • the first motor has a circular structure, a front mounting panel is provided on the front end of the first motor, and a pair of lugs are symmetrically provided on the front mounting panel; on the upper part of the valve body And the upper end cover are provided with a front end positioning surface, a first motor rear end positioning surface, a first motor body profiling groove, a first motor front bearing positioning groove and a slot matched with the lug;
  • the second motor has a square-like structure, with a bottom plane and a top plane, and a circular arc transition is used between the top plane and the side surfaces; a rear end positioning surface of the second motor is provided on the upper part of the valve body 1.
  • the front end positioning surface on the upper part of the valve body and the upper end cover serves as the common positioning surface of the first motor and the second motor, and there is also a slanted rib on it to form an interference fit between the front and the rear.
  • the first motor has a circular structure, a front mounting panel is provided on the front end of the first motor, and a pair of lugs are symmetrically provided on the front mounting panel; on the upper part of the valve body And the upper end cover are provided with a front end positioning surface, a first motor rear end positioning surface, a first motor body profiling groove, a first motor front bearing positioning groove and a slot matched with the lug;
  • the second motor has a square-like structure, and has a bottom plane and a top plane; on the upper part of the valve body, a rear motor positioning surface, a boss matching the bottom of the second motor body and a first Two motor rear bearing positioning grooves; the upper end cover is provided with a second motor rear end positioning surface, a set of protrusions matching the top surface of the second motor body, and a second motor rear bearing positioning groove;
  • the front end positioning surface on the upper part of the valve body and the upper end cover serves as the common positioning surface of the first motor and the second motor, and there is also a slanted rib on it to form an interference fit between the front and the rear.
  • the motor fixing structure is made of plastic parts.
  • the elasticity of the plastic parts allows the motor to form good contact and fit with the fixed structure.
  • FIG. 1 is a schematic view of the internal structure from a perspective of an embodiment of a valve provided by an example of the present application;
  • FIG. 2 is a partially enlarged schematic view at A in FIG. 1;
  • FIG. 3 is a three-dimensional structural schematic diagram of an implementation manner of a passive magnetic member provided by an embodiment of the present application.
  • FIG. 4 is a schematic view of the internal structure of another embodiment of the valve according to an embodiment of the present application from another perspective;
  • FIG. 5 is a schematic perspective structural view of an implementation manner of a valve core unit provided by an example of the present application.
  • FIG. 6 is a schematic structural diagram of an upper end cover of an electronic valve provided by an embodiment of the present application.
  • FIG. 7 is a cross-sectional view along A-A direction of FIG. 6;
  • FIG. 8 is a schematic structural diagram of a lower end cover of an electronic valve provided by an embodiment of the present application.
  • FIG. 9 is a cross-sectional view of FIG. 8 along B-B;
  • FIG. 10 is a schematic structural diagram of a valve body of an electronic valve provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of an electronic valve laser welding process of an electronic valve provided by an embodiment of the present application.
  • FIG. 12 is a structural schematic diagram of a stepping motor of a motor fixing structure of an electronic valve provided by an embodiment of the present application;
  • FIG. 13 is a schematic structural diagram of a valve body of a motor fixing structure of an electronic valve provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a motor fixing mechanism portion at an upper portion of a valve body of an electronic valve motor fixing structure provided by an embodiment of the present application;
  • 15 is a schematic structural view of another part of the motor fixing mechanism portion of the upper portion of the valve body of the motor fixing structure of the electronic valve provided by the embodiment of the present application;
  • 16 is a front end schematic diagram of a stepping motor of a motor fixing structure of an electronic valve provided in an embodiment of the present application and a motor fixing mechanism at an upper portion of a valve body;
  • 17 is a schematic diagram of a rear end surface of a stepping motor of a motor fixing structure of an electronic valve provided in an embodiment of the present application and a motor fixing mechanism at an upper portion of a valve body;
  • FIG. 18 is a schematic structural diagram of an upper end cover of a motor fixing structure of an electronic valve provided by an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a motor fixing mechanism portion of an upper end cover of a motor fixing structure of an electronic valve provided by an embodiment of the present application;
  • 20 is a schematic diagram of a stepping motor of a motor fixing structure of an electronic valve provided in an embodiment of the present application and a motor fixing mechanism of an upper end cover;
  • 21 is a side view of the stepping motor of the motor fixing structure of the electronic valve provided in the embodiment of FIG. 20 and the motor fixing mechanism of the upper end cover;
  • 22 is a schematic diagram of the installation and fixing of the DC motor of the electronic valve motor fixing structure provided by the embodiment of the present application;
  • FIG. 23 is a schematic diagram of the installation and fixing of the front end of the DC motor and the upper part of the valve body of the electronic valve motor fixing structure provided by the embodiment of the present application;
  • 24 is a schematic diagram of the installation and fixing of the rear end of the DC motor and the upper part of the valve body of the motor fixing structure of the electronic valve provided by the embodiment of the present application;
  • FIG. 25 is a schematic structural view of an embodiment in which the first motor body positioning member of the electronic valve motor fixing structure provided by an embodiment of the present application uses two strips;
  • 26 is a schematic structural view of an embodiment in which the first motor body positioning member of the electronic valve motor fixing structure provided by an embodiment of the present application adopts an integrated structure;
  • FIG. 27 is a structural schematic diagram of another structural manner of a valve body of a motor fixing structure of an electronic valve provided by an embodiment of the present application;
  • 29 is an assembly schematic diagram of the second motor and the upper portion of the valve body of the electronic valve motor fixing structure provided by an embodiment of the present application;
  • FIG. 30 is a structural schematic diagram of another structural manner of an upper end cover of a motor fixing structure of an electronic valve provided by an embodiment of the present application;
  • 31 is an assembly diagram of the first motor and the upper end cover of the motor fixing structure of the electronic valve provided by the embodiment of the present application;
  • 32 is an assembly diagram of a second motor and an upper end cover of a motor fixing structure of an electronic valve provided by an embodiment of the present application.
  • an aspect of the present application provides a valve including: a housing 100, and a power unit 200 and a spool 930 installed in the housing 100, and the valve further includes a power unit 200 On the active magnetic member 400 and the passive magnetic member 500 connected to the spool 930,
  • the active magnetic member 400 has an active magnetic surface.
  • the extending direction of the active magnetic surface is perpendicular to the axis of the output shaft 210 of the power unit 200.
  • the passive magnetic member 500 has a passive magnetic surface 530.
  • the active magnetic surface and the passive magnetic surface 530 are oppositely arranged.
  • the power generated by the power unit 200 is transmitted to the spool 930 by the magnetic force acting between the active magnetic member 400 and the passive magnetic member 500.
  • the active magnetic member 400 and the passive magnetic member 500 provided in the embodiments of the present application are preferably made of ruthenium boron; the power unit 200 is preferably a power device that can generate rotational power, such as an electric motor, etc.
  • the magnetic member 400 rotates, and the magnetic force between the active magnetic member 400 and the passive magnetic member 500 drives the passive magnetic member 500 to rotate, thereby realizing the rotation of the spool 930; of course, the valve provided in the embodiment of the present application is also suitable for power
  • the unit 200 is a power device that generates a linear driving force or other forms of driving force.
  • the power unit 200 can drive the active magnetic member 400 to perform a linear movement by generating a linear driving force.
  • the active magnetic member 400 passes the magnetic force between the passive magnetic member 500
  • the action drives the passive magnetic member 500 to produce a linear motion, which in turn drives the spool 930 to produce a linear movement.
  • the above-mentioned closed medium environment may not be destroyed, but
  • the power transmission is realized by the magnetic force between the active magnetic member 400 and the passive magnetic member 500, thereby avoiding the problem of media leakage that may be caused due to the power transmission between the power unit 200 and the spool 930;
  • the active magnetic member 400 and The passive magnetic member 500 is preferably arranged coaxially; the vertical in the embodiments of the present application includes absolute vertical and approximately vertical.
  • the valve provided in this application realizes the power transmission between the power unit 200 and the spool 930 through the magnetic force between the active magnetic force surface and the passive magnetic force surface 530. Only the active magnetic force surface and the passive magnetic force surface 530 need to be set face-to-face during assembly. It suffices to generate a magnetic force sufficient for power transmission. Since the coaxiality between the active magnetic member 400 and the passive magnetic member 500 is low, assembly efficiency can be improved.
  • the active magnetic force surface and the passive magnetic force surface 530 are both flat, and the active magnetic force surface and the passive magnetic force surface 530 are parallel.
  • the distance between the active magnetic force surface and the passive magnetic force surface 530 can be selected from 2 to 4 mm, preferably 3 mm.
  • the active magnetic surface and the passive magnetic surface 530 Relative to making the active magnetic surface and the passive magnetic surface 530 arc-shaped or other non-planar forms, designing the active magnetic surface and the passive magnetic surface 530 into two parallel planes can be used to form the active magnetic surface and the passive magnetic surface
  • the space required by 530 is minimized, thereby reducing the space occupied by the active magnetic member 400 and the passive magnetic member 500 respectively; and the active magnetic member 400 can be increased by bringing the active magnetic surface and the passive magnetic surface 530 as close as possible
  • the magnetic force between the passive magnetic member 500 and reduce the space occupied by the active magnetic member 400 and the passive magnetic member 500 and the distance between the two provide a mounting position for other components in the valve, so that each component can A more compact and reasonable arrangement, thereby reducing the volume of the valve; of course, as long as the extension direction of the active magnetic force surface is perpendicular to the output axis of the power unit 200, the active magnetic force surface and the passive magnetic force surface 530 can also be curved, uneven Surface or
  • the active magnetic member 400 and the passive magnetic member 500 have the same size. In this way, the active magnetic member 400 and the passive magnetic member 500 can be formed using the same mold during production, without having to provide different specifications of molds for two different types of magnetic members, thereby reducing production costs and saving the production process;
  • FIG. 3 is a perspective schematic diagram of the passive magnetic member 500.
  • FIG. 3 is also a perspective schematic diagram of the active magnetic member 400, and the passive magnetic force shown in the figure
  • the surface 530 may correspondingly be an active magnetic surface.
  • both the active magnetic member 400 and the passive magnetic member 500 are circular members, and the circular member includes a plurality of sector-shaped magnetic blocks 520 distributed in the circumferential direction of the circular member and connected in sequence.
  • the number of sector magnetic blocks 520 is greater than or equal to four.
  • both the active magnetic member 400 and the passive magnetic member 500 are ring members. This makes it possible to install the active magnetic member 400 and the passive magnetic member 500 on the corresponding mounting shaft when installing the active magnetic member 400 and the passive magnetic member 500, which is convenient for installation and improves the assembly efficiency;
  • the member 400 and the passive magnetic member 500 are designed into a disc shape or other circular structures, and designing the two into a ring shape can reduce the materials used for the active magnetic member 400 and the passive magnetic member 500, and further reduce production costs.
  • the currently used magnetic coupling generally requires that the two magnets are located in the medium environment and outside the medium environment, in order to avoid medium leakage, it is necessary to use a spacer to separate the two magnets located in different environments.
  • the two magnets of the coupling are generally in the form of being put together, which requires the spacer to adopt the corresponding structural form to adapt to the assembly form of the two magnets.
  • one magnet is a cylindrical magnet and the other magnet is When a cylindrical magnet is used, it is necessary to make the spacer barrel-shaped, and put the spacer outside the cylindrical magnet, and the cylindrical magnet outside the spacer to isolate the two magnets.
  • a first accommodating cavity 300 and a second accommodating cavity 600 are formed in the housing 100, and the power unit 200 and the active magnetic member 400 are installed in the first In an accommodating chamber 300, the valve core 930 and the passive magnetic member 500 are installed in the second accommodating chamber 600.
  • the housing 100 includes a partition 700 separating the first accommodating chamber 300 and the second accommodating chamber 600, and the extending direction of the partition 700 It is perpendicular to the output shaft of the power unit 200.
  • the extension direction of the partition 700 is preferably parallel to the active magnetic surface and/or the passive magnetic surface 530; the above-mentioned parallel includes the case of absolute parallel and approximately parallel; the partition 700 may be It is preferably a plate structure or a sheet structure.
  • the partition 700 may be a hard structure, an elastic structure or a flexible structure.
  • the first receiving cavity 300 provided in the embodiment of the present application is formed in the housing 100.
  • the second receiving cavity 600 may be a cavity in a smaller housing within the housing 100, and the partition 700 is a part of the wall of the smaller housing; the second receiving cavity 600 may also be located in the housing 100 Outside the chamber of another casing connected to the casing 100, the partition 700 is a part that realizes the connection between the casing 100 and the other casing.
  • the active magnetic member 400 and the passive magnetic member 500 can be separated only by forming the partition 700 into a structure such as a thin plate or sheet, which reduces the volume of the partition 700 And occupy the space, and can make the active magnetic member 400 and the passive magnetic member 500 as close as possible to the partition 700, so as to reduce the distance between the active magnetic member 400 and the passive magnetic member 500, and then the active magnetic member 400 and the passive magnetic force Between pieces 500, a sufficiently large magnetic force can be generated.
  • a first anti-wear boss 410 for separating the partition 700 and the active magnetic member 400 is formed on the active magnetic member 400.
  • the first anti-wear boss 410 is preferably formed on the active magnetic force surface; in order for the active magnetic force element 400 and the passive magnetic force element 500 to generate a sufficiently large magnetic force, the active magnetic force surface needs to be as much as possible Located close to the partition 700, in order to prevent the active magnetic member 400 from wearing easily due to contact with the partition 700 during the movement, so as to prolong the service life of the active magnetic member 400, and separate the active magnetic member 400 from the partition 700, and By using the first anti-wear boss 410 to block when a collision may occur between the active magnetic member 400 and the partition 700, the contact between the active magnetic member 400 and the partition 700 may be better avoided.
  • the valve provided in the embodiment of the present application includes a gear train assembly 800 installed in the housing 100, and the gear train assembly 800 includes a power receiving unit 200 directly
  • the first-stage transmission member 810 of the generated power and the passive magnetic member 500 are mounted on the first-stage transmission member 810.
  • the gear train assembly 800 used in the embodiments of the present application may include gears, turbines, worms, and other transmission parts used to achieve power transmission; the gear train assembly 800 used in the embodiments of the present application is preferably a reduction gear set, and through the gear train assembly 800 increases the torque that the power unit 200 finally uses on the spool 930.
  • the passive magnetic member 500 is installed on On the first-stage transmission member 810, the magnetic force generated between the active magnetic member 400 and the passive magnetic member 500 is sufficient to realize the power unit 200 to drive the first-stage transmission member 810 to move synchronously, thereby ensuring the active magnetic member 400 and the passive magnetic member 500 Continuous synchronized movement.
  • the passive magnetic member 500 may also be installed on other transmission members in the gear train assembly 800, as long as the synchronous movement between the active magnetic member 400 and the passive magnetic member 500 can be ensured.
  • the gear train assembly 800 includes an Nth stage transmission member, and the Nth stage transmission member is installed on the mounting base 710 to connect the Nth stage transmission member with the housing 100 Isolated, N is a natural number.
  • the N-th stage transmission member is a first-stage transmission member 810
  • a second anti-wear boss 510 is formed on the passive magnetic member 500 to separate the mounting base 710 and the passive magnetic member 500.
  • the setting of the second anti-wear boss 510 can prevent the passive magnetic member 500 from colliding with the mounting base 710 during the movement, thereby reducing the possibility of the passive magnetic member 500 wearing, and prolonging the use of the passive magnetic member 500 Lifetime;
  • the second anti-wear boss 510 is preferably formed on the passive magnetic force surface 530; when the active magnetic member 400 and the passive magnetic member 500 have the same size, FIG.
  • the first-stage transmission member 810 includes a worm 712 and a support shaft 711, the worm 712 is sleeved on the support shaft 711, and one end of the support shaft 711 penetrates the passive magnetic member 500 and is installed on the mounting base 710.
  • the worm 712 is fixedly connected to the passive magnetic member 500.
  • the gear train assembly 800 includes a final-stage transmission member 910 connected to the valve core 930, and the final-stage transmission member 910 and the valve core 930 are integrally formed as a valve core unit 900.
  • the spool 930 and the gear train assembly 800 are installed in two chambers, respectively, and a spool 930 and a gear train assembly 800 are generally formed between the two chambers.
  • connection channel the spool 930 and the gear train assembly 800 extend into the connection channel from both sides of the connection passage to realize the connection between the spool 930 and the gear train assembly 800, and the spool 930 is connected to the gear train assembly 800 Before, the seal must be placed between the spool 930 and the gear train assembly 800. After the spool 930 and the gear train assembly 800 are connected, the seal is fixed and the connection channel is sealed to avoid the medium in the two chambers Flow between.
  • the medium will not affect the power unit 200, so that the gear train assembly 800 and the spool 930 Located in the same chamber, the aforementioned connection channel does not need to be sealed, so that there is no need to use a traditional connection between the spool 930 and the gear train assembly 800 for installing the seal, and the last-stage transmission member of the gear train assembly 800 can be used 910 and the spool 930 are integrally formed into the spool unit 900 and then directly installed in the housing 100, not only saving the valve assembly process, but also the spool unit 900 can be manufactured as an integrated structure at the same time when manufacturing the spool 930, Save the manufacturing process.
  • a dustproof portion 920 is formed on the valve core unit 900, a communication passage is formed in the housing 100, and the dustproof portion 920 is located in the communication passage.
  • the dustproof portion 920 provided by the embodiment of the present application is preferably an annular structure formed on the valve core 930 and protruding in the radial direction of the valve core 930.
  • the annular structure is arranged coaxially with the valve core 930, preferably in the annular structure
  • a dust-proof groove 921 is formed on the outer edge of the valve.
  • the dust-proof groove 921 may not be provided, but close to the ring structure itself to shield dust; by setting the dust-proof portion 920 on the spool unit 900, the dust in the medium can be reduced or even avoided Enter the gear train assembly 800 from the communication channel, and avoid as much as possible the dust on the transmission effect and service life of the gear train assembly 800; when the dustproof groove 921 is formed on the dustproof portion 920, the dustproof groove 921 can be passed Accommodating the dust that enters between the dustproof portion 920 and the inner wall of the connection channel is equivalent to adding a dustproof barrier to the dustproof portion 920 to more effectively prevent the dust from entering the gear train assembly 800 from the medium.
  • the final transmission element 910 is a sector gear.
  • to realize the switch of the valve may only require the spool 930 to rotate within a certain angle range.
  • the final transmission member 910 only needs to realize the function of transmitting power within this angle range, so that the end
  • the stage transmission part 910 is a sector gear, which not only can ensure the effective transmission of power, but also reduces the material used for the gear, saving costs, and because the sector gear is relatively small, it saves installation space for other components in the valve. Make the arrangement of various components in the valve more compact and reasonable, and then reduce the space occupied by the valve.
  • an electronic valve of the present application belongs to the electronic valve product in the valve.
  • an electronic valve of the present application includes a valve body assembly, a flow control device, and a power device.
  • the valve body assembly includes a valve body 3, an upper end cover 1, a lower end cover 2, and a connecting pipe; the upper part 303 of the valve body is connected to the upper end cover 1, and the lower part 310 of the valve body is connected to the lower end cover 2 and the connecting pipe.
  • the power device includes a gear train, a motor and a control board, and is placed in a space 308 formed by the upper end cover 1 and the upper portion 303 of the valve body.
  • the flow control device includes a valve core, and is placed in a space 309 formed by the lower end cover 2 and the lower portion 310 of the valve body.
  • the upper end cover 1 and 2 are schematic structural diagrams of the upper end cover 1 of the present application.
  • the upper end cover 1 has flanges 103 around it, so as to better cooperate with the upper end periphery of the valve body 3.
  • the upper end cover 1 has an inner surface 101.
  • a circle of the inner surface 101 close to the flange 103 is a welding area 102.
  • the welding area 102 is attached to the upper end surface 304 of the valve body 3.
  • a first positioning shaft hole 104 and a second positioning shaft hole 105 are also provided in the upper end cover.
  • the first positioning shaft hole 104 and the second positioning shaft hole 105 are respectively opened in the first positioning boss 106 and the second positioning boss Taiwan 107.
  • the first positioning boss 106 and the second positioning boss 107 are preferably separated by a certain distance. The larger the distance, the better the positioning performance.
  • FIG. 3 and 4 are schematic structural diagrams of the lower end cover 2 of the present application.
  • the lower end cover 2 has flanges 205 around it, so as to better fit the periphery of the lower end of the valve body 3.
  • a flow channel 203 is provided in the center of the lower end cover 2.
  • the lower end cover 2 has an inner surface 201.
  • a circle of the inner surface 201 close to the flange 205 is a welding area 202.
  • the welding area 202 is attached to the lower end surface 305 of the valve body 3.
  • a set of radially distributed reinforcing ribs 204 is also provided between the welding area 202 and the runner 203.
  • FIG. 5 is a schematic structural diagram of the valve body 3 of the present application.
  • the valve body 3 includes an upper valve body 303 and a lower valve body 310.
  • the upper part 303 of the valve body has an upper space 308 for accommodating the power device.
  • the upper end surface 304 of the upper portion 303 of the valve body has an outward flange 306, which can increase the contact area between the valve body and the upper end cover, which is beneficial to positioning and increase the welding area.
  • the upper end surface 304 and the flange 306 on the upper part of the valve body are in contact with the welding area 102 on the inner surface of the upper end cover.
  • the upper portion 303 of the valve body is further provided with a first positioning pin 301 and a second positioning pin 302.
  • the first positioning pin shaft 301 and the second positioning pin shaft 302 cooperate with the first positioning shaft hole 104 and the second positioning shaft hole 105 of the upper end cover respectively to realize the positioning of the upper portion 303 of the valve body and the upper end cover 1.
  • one of the positioning pin shafts is circular and the other is oval, and the first positioning shaft hole 104 of the upper end cover matched therewith
  • the second positioning shaft hole 105 is a circular hole with a diameter slightly larger than the pin shaft to avoid over-positioning.
  • the lower part 310 of the valve body has a lower space 309 for accommodating the flow control device.
  • the lower end surface 305 of the lower portion 310 of the valve body has an outward flange 307, which can increase the contact area between the valve body and the lower end cover, which is beneficial to positioning and increase the welding area.
  • the lower end surface 305 and the flange 307 are bonded to the welding area 202 on the inner surface of the lower end cover.
  • the electronic valve of this application is assembled according to the method:
  • one component uses light-transmitting materials and the other component uses light-absorbing materials.
  • the valve body 3 uses a light-absorbing material
  • the upper end cover 1 and the lower end cover use a light-transmitting material.
  • the valve body 3 is made of PA plastic, PPA plastic or PPS plastic. These materials can replace metal materials, have good comprehensive properties, including mechanical properties, heat resistance, abrasion resistance, chemical resistance, flame retardancy, mold release, no need to add a mold release agent, and easy to process , Suitable for modification, etc.
  • the upper end cover and the lower end cover are made of PA9T plastic, and a light-transmitting carrier is added, and the light transmittance is greater than 20%. If the material has high light transmittance, the thickness of the end cap can be increased. Conversely, if the light transmittance of the material is low, the thickness of the end cap should not be too large.
  • the light transmittance of the end cap material is preferably 50% to 60%, and the thickness is in the range of 2mm ⁇ 0.2mm.
  • the power of laser welding is about 150 watts.
  • the valve body 3 and the upper and lower end covers 1 and 2 are made of PA9T plastic, and the models used for the two can be different.
  • PA9T plastic itself is a light-absorbing material and can be directly used in the manufacture of the valve body 3.
  • the PA9T plastic used for the upper and lower end caps 1 and 2 is added with a light-transmitting carrier to make it have certain light transmittance and meet the requirements of laser welding. Because the two parts of the laser welding have the same material and the melting point is around 300°C, the welding strength can be greatly improved. And the high density characteristics of PA9T plastic can also improve the welding strength.
  • An electronic valve of the present application has the following beneficial effects: the end cover is connected to the valve body by laser welding, and because the laser welding is welding in a pressureless state, no scratches, cracks or cracks on the surface of the product will occur Common phenomenon, high product qualification rate and good sealing performance; at the same time, no welding slag is generated during the welding process, the appearance of the product is good, and the size of the product can be guaranteed.
  • FIGS. 1-12 are a typical implementation of a motor fixing structure of an electronic valve of the present application Schematic.
  • the first motor 3 is a stepper motor
  • the second motor is a DC motor.
  • the two motors are alternately placed in the motor fixing mechanism in the upper part 1 of the valve body and the upper end cover 2. After the upper end cover is fixed to the upper part of the valve body, the motor is reliably fixed.
  • the stepping motor 3 has a circular structure.
  • a front mounting panel 301 is provided at the front end.
  • a pair of lugs 302 and 303 are symmetrically arranged on the front mounting panel.
  • an electric valve motor fixing structure of the present application includes a fixing structure 5 provided in the upper part of the valve body and a fixing structure 6 provided in the upper end cover.
  • the fixing structure 5 includes a first motor positioning mechanism and a second motor positioning mechanism disposed on the inner surface of the upper portion 1 of the valve body.
  • the first motor positioning mechanism includes a first motor front bearing positioning member 507, a front end positioning member 501, a first motor body positioning member 502, and a first motor rear positioning member 503, which are sequentially arranged.
  • the first motor front bearing positioning member 507 is disposed above the front end positioning member 501 and has a bearing positioning groove 508.
  • the bearing positioning groove 508 is a semi-circular structure, and its radius is equal to or slightly larger than the radius of the front bearing of the first motor.
  • the front-end positioning member 501 has a positioning surface 515 that cooperates with the front end of the first motor, and an inclined surface rib 514 is also provided thereon.
  • a slot 516 adapted to the lug 303 on the first motor mounting plate is also provided inside the positioning surface 515.
  • the first motor rear end positioning member 503 has a positioning surface 511.
  • the first motor and the front end positioning surface 515 and the rear end positioning surface 511 form an interference fit through the inclined surface rib positions 514.
  • the first motor body positioning member 502 has a profiling groove 509 adapted to the shape of the first motor body.
  • the inner surface of the profiling groove is a semi-circular positioning surface.
  • the positioning member 502 is an I-shaped structure, which can reduce the amount of material while meeting the positioning requirements.
  • the positioning member 502 may also be composed of two strip-shaped bodies, and each strip-shaped body has a profiling groove 509 of the same shape, as shown in FIG. 13.
  • the positioning member 502 is a whole or structure, as shown in FIG. 14.
  • the profiling groove 509 may also be a section of arc surface, such as 1/4 section of arc surface.
  • the profiling groove 509 may also be composed of two arc-shaped surfaces.
  • the first motor 3 is placed in the motor fixing structure on the upper part of the valve body, so that the front and rear surfaces of the first motor cooperate with the front end positioning surface 515 and the rear end positioning surface 511 respectively, and the front bearing of the first motor Cooperating with the front bearing positioning groove 508, the body of the first motor is matched with the profiling groove 509.
  • the second motor 4 has a square-like structure, and has a bottom plane and a top plane, and a circular arc transition is used between the top plane and the side surfaces.
  • the length L2 of the second motor is 25 ⁇ 0.2mm
  • the width W2 is 18.2 ⁇ 0.15mm
  • the height H is 18.2 ⁇ 0.15mm
  • the radius R of the arc transition surface between the top plane and the side is 6.2mm
  • the bearing diameter is 5 ⁇ 0.1mm.
  • the length of the second motor 4 is greater than the length of the first motor 3, the length and width are smaller than the diameter of the first motor 3, and the diameter of the front and rear bearings is smaller than the bearing diameter of the first motor 3.
  • the second motor positioning mechanism includes a motor front positioning surface 515, a second motor body positioning member 504, a second motor rear positioning member 505, and a second motor rear bearing that are sequentially disposed on the upper inner surface of the valve body ⁇ 506.
  • the positioning surface 515 of the front end of the motor serves as a shared positioning surface of the first motor 3 and the second motor 4.
  • the second motor body positioning member 504 is a pair of convex strips.
  • the convex surface has a second motor body positioning surface 510.
  • the positioning surface 510 of the second motor body is a flat surface adapted to the bottom of the second motor body.
  • the second motor rear end positioning member 505 is provided with a second motor rear positioning surface 512.
  • the front end surface of the convex strip can also be used as the rear end positioning surface of the first motor.
  • the second motor rear end positioning member 505 may be a square bump, as shown in FIG. 13.
  • the second motor rear end positioning member 505 is a set of convex posts, as shown in FIG. 14.
  • the second motor rear bearing positioning member 506 is disposed above the second motor rear end positioning member 505 and has a second motor rear bearing positioning groove 513 adapted to the shape of the bearing.
  • the positioning members can be independent of each other, so that they can be connected back and forth or up and down according to the set position.
  • the fixing structure 6 in the upper end cover includes a first motor fixing structure and a second motor fixing structure provided on the inner surface of the upper end cover 2.
  • the first motor fixing structure includes a first motor front bearing positioning member 602, a motor front end positioning surface 603, a first motor body anti-shaped groove 606, and a first motor rear end positioning surface 611, which are sequentially arranged.
  • the first motor front bearing positioning member 602 has a bearing positioning groove 601.
  • the bearing positioning groove 601 is a semi-circular structure, and its radius is equal to or slightly larger than the radius of the front bearing of the first motor.
  • the first motor body anti-shaped groove 606 is a semi-circular groove formed on the upper end cover.
  • the front and rear surfaces of the first motor body anti-shaped groove 606 respectively constitute a motor front end positioning surface 603 and a first motor rear end positioning surface 611.
  • An inclined surface 604 is provided on the positioning surface 603 at the front end of the motor.
  • a slot 605 adapted to the lug 304 on the first motor mounting plate is also provided inside the motor front end positioning surface 603.
  • the second motor positioning mechanism includes a motor front positioning surface 603, a second motor body positioning member 607, a second motor rear positioning surface 608, and a second motor rear bearing positioning, which are sequentially arranged on the inner surface of the upper end cover Piece 609.
  • the motor front end positioning surface 603 is a positioning surface shared by the first motor and the second motor front end.
  • the second motor body positioning member 607 is a pair of claws, which respectively clamp the arc transition surfaces of the left and right shoulders of the second motor.
  • the second motor rear end positioning surface 608 is the rear wall surface of the groove 612 opened by the upper end cover.
  • the second motor rear bearing positioning member 609 is provided with a second motor rear bearing positioning groove 610 adapted to the shape of the bearing.
  • the second motor 4 is assembled as follows:
  • the size of the profile groove of the first motor body in the upper part of the valve body should also avoid interference with the second motor body. If necessary, two or more arcs can be used.
  • the upper part 1 of the valve body, the upper end cover 2 and the motor fixing structure provided thereon are all made of plastic parts.
  • FIGS. 1-12 another typical structure of the electric valve motor fixing structure of the present application, specifically, differs from the embodiment of FIGS. 1-12 in that:
  • the second motor 4 has a square-like structure, and has a bottom plane, a top plane, and arc surfaces on both sides. All positioning elements in the upper part of the valve body are integrated on a base 517.
  • the base 517 is fixed to the inner surface of the upper portion 1 of the valve body.
  • the base 517 and the upper portion 1 of the valve body may be integrally injection molded.
  • the rear section of the base 517 has a planar structure, and the platform surface constitutes the positioning surface 510 of the second motor body.
  • the first section of the base 517 defines a first motor body profiling slot 509.
  • the front and rear surfaces of the profiling groove 509 of the first motor body are the front positioning surface 515 of the motor and the rear positioning surface 511 of the first motor, respectively.
  • the second motor body positioning member of the upper end cover is a set of positioning protrusions 607.
  • the valve provided in this application realizes the power transmission between the power unit and the valve core through the magnetic force between the active magnetic force surface and the passive magnetic force surface. Only the active magnetic force surface and the passive magnetic force surface need to be set face-to-face during assembly and generate enough power to realize the power The transmitted magnetic force is sufficient. Since the coaxiality between the active magnetic member and the passive magnetic member is low, assembly efficiency can be improved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

L'invention concerne une vanne, qui comprend : un boîtier (100), et une unité de puissance (200) et un embout de vanne (930) montés dans le boîtier (100). La vanne comprend en outre un élément magnétique d'entraînement (400) relié à l'unité de puissance (200) et un élément magnétique entraîné (500) relié à l'embout de vanne (930) ; l'élément magnétique d'entraînement (400) a une surface magnétique d'entraînement ; la direction d'extension de la surface magnétique d'entraînement est perpendiculaire à la direction axiale d'un arbre de sortie (210) de l'unité de puissance (200) ; l'élément magnétique entraîné (500) a une surface magnétique entraînée (530) ; la surface magnétique d'entraînement est opposée à la surface magnétique entraînée (530), de façon à transférer une puissance générée par l'unité de puissance (200) à l'embout de vanne (930) à l'aide de l'action magnétique entre l'élément magnétique d'entraînement (400) et l'élément magnétique entraîné (500).
PCT/CN2019/130793 2019-01-07 2019-12-31 Vanne, vanne électronique et structure de fixation de moteur pour vanne électronique WO2020143511A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201910013344.9A CN111412322A (zh) 2019-01-07 2019-01-07 一种电子阀的电机固定结构
CN201910013344.9 2019-01-07
CN201910016607.1A CN109611597A (zh) 2019-01-08 2019-01-08 一种电子阀
CN201910016607.1 2019-01-08
CN201910425113.9 2019-05-21
CN201910425113.9A CN110056704A (zh) 2019-05-21 2019-05-21 阀门

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