WO2020024920A1 - 燃气比例阀及其电磁驱动装置 - Google Patents

燃气比例阀及其电磁驱动装置 Download PDF

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Publication number
WO2020024920A1
WO2020024920A1 PCT/CN2019/098297 CN2019098297W WO2020024920A1 WO 2020024920 A1 WO2020024920 A1 WO 2020024920A1 CN 2019098297 W CN2019098297 W CN 2019098297W WO 2020024920 A1 WO2020024920 A1 WO 2020024920A1
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WO
WIPO (PCT)
Prior art keywords
positioning ring
reed
wire frame
elastic
assembly
Prior art date
Application number
PCT/CN2019/098297
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English (en)
French (fr)
Inventor
王喜忠
Original Assignee
浙江三花智能控制股份有限公司
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Publication of WO2020024920A1 publication Critical patent/WO2020024920A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675Electromagnet aspects, e.g. electric supply therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid

Definitions

  • the invention relates to the technical field of electromagnetic drive control and gas control, in particular to a gas proportional valve and an electromagnetic drive device thereof.
  • the gas proportional valve includes an electromagnetic driving device, which includes a moving coil component and a valve plug.
  • the moving coil component undergoes axial lifting movement by receiving magnetic induction.
  • the moving coil component can drive the valve plug to perform axial movement to adjust the gas flowing through the valve port Flow, moving coil components can not control the radial sway during high frequency operation, which may cause unreliable product operation.
  • the main purpose of the present invention is to provide a gas proportional valve and an electromagnetic driving device thereof.
  • the moving coil assembly is actuated, the phenomenon of swaying in the radial direction can be reduced, and the operation reliability of the gas proportional valve is relatively improved.
  • the electromagnetic drive device includes a first reed assembly and a second reed assembly.
  • the first reed assembly includes a first reed, a first fixed part of the first reed, a first elastic part, and a second reed assembly.
  • the second spring includes a second fixing member and a second elastic member, and is fixedly connected to the first wire end of the wire frame through the first elastic member and the second wire frame to the second elastic member and the wire frame The ends are fixedly connected, which can reduce the sloshing of the moving coil component in the radial direction, and relatively improve the operating reliability of the electromagnetic driving device.
  • FIG. 1 is a schematic diagram of a gas proportional valve provided by the present invention
  • FIG. 2 is a schematic cross-sectional view of an electromagnetic driving device provided by the present invention.
  • FIG. 3 is a schematic structural diagram of a first reed of an electromagnetic driving device provided by the present invention.
  • FIG. 4 is a schematic structural diagram of a second reed of the electromagnetic driving device provided by the present invention.
  • FIG. 5 is a perspective view of a wire frame structure of an electromagnetic driving device provided by the present invention.
  • FIG. 6 is a schematic perspective view of a first reed assembly and a second reed assembly of the electromagnetic driving device provided by the present invention.
  • the gas proportional valve shown in FIG. 1 includes a main valve seat 1, which is provided with an inlet 1a and an outlet 1b. Gas flows from the inlet 1a and flows out from the outlet 1b.
  • the main valve seat 1 can be die-casted by aluminum alloy.
  • the valve seat 1 is fixedly connected with an electromagnetic drive assembly 2, a servo drive assembly 3, and an electromagnetic drive device 4.
  • the inner cavity of the main valve seat 1 is provided with a pressure difference adjustment device 5.
  • the main valve seat 1 is also provided with a first valve corresponding to the valve.
  • the gas proportional valve can be controlled by the electromagnetic drive assembly 2 and the servo drive assembly 3 as the gas safety switch.
  • the inner cavity is also provided with a first channel 15 and a second channel 16, and the gas passes through the first valve port 11 and enters the first channel 15 and the second channel through the second valve port 12. 16, because the third valve port 13 is constant State, the gas flows from the third port 13 is discharged through the relief hole 1b to the outlet 17, the outlet is connected to the combustion chamber 1b.
  • the electromagnetic driving device 4 includes a housing 40 and a magnet core 44.
  • the housing 40 includes at least a magnetic conductive portion including a top wall portion 401 and a side wall portion 402. 401 is fixedly connected to the magnetic guide core 44.
  • the outer periphery of the magnetic guide core 44 is provided with a moving coil component 43.
  • the moving coil component 43 can reciprocate along the axis of the magnetic guide core 44.
  • the electromagnetic driving device 4 is provided with a cavity 48.
  • the electromagnetic driving device 4 further includes a permanent magnet 41 and a magnet guide 42, the permanent magnet 41 and the magnet guide 42 are located in the cavity 48, the permanent magnet 41 and the magnet guide 42 are located on the outer peripheral portion of the moving coil assembly 43, and the housing 40 roughly includes the permanent magnet 41 And the magnet guide 42 is covered, and the permanent magnet 41 is sleeved on the outer peripheral portion of the magnet guide 42.
  • the permanent magnet 41 is located between the side wall portion 402 and the magnet guide 42, and the top wall portion 401 and the magnet guide 42 are not in direct contact.
  • the casing 40 generally forms a cavity 48 of the motor 4 through fixed connections with the magnetically permeable core 44 and the cover plate 47, respectively.
  • the casing 40 has magnetic permeability and includes at least a magnetically permeable portion.
  • the casing 40 may include only the magnetically permeable portion. That is, the entire casing 40 may be stamped and formed from a magnetically permeable metal plate.
  • the casing 40 may also be made of low carbon steel or other magnetically permeable materials, or the magnetically permeable portion may be injection-molded with plastic parts or other materials as the casing 40. It is only necessary to ensure that the outer casing 40 has magnetic permeability.
  • the outer casing 40 is generally a cylindrical structure.
  • the magnetic core 44 is made of pure iron or low-carbon steel magnetic material.
  • the top wall portion 401 of the outer casing 40 and the The magnet core 44 may be fixedly connected by welding or riveting.
  • the electromagnetic driving device 4 includes a moving coil assembly 43 including a field wire group 431 and a wire frame 432.
  • the field wire group 431 is fixedly connected to the wire frame 432.
  • the magnet 41 and the magnet guide 42 are located in the cavity 48 and the permanent magnet 41 and the magnet guide 42 are located on the outer periphery of the moving coil assembly 43.
  • As a housing 40 having a magnetic permeability function the permanent magnet 41 and the magnet guide 42 are generally covered, magnetic
  • the body 41 may be a generally hollow ring structure as a whole.
  • the permanent magnet 41 may be an integrated ring structure or a split ring structure.
  • the permanent magnet 41 is provided with an inner ring surface and an outer ring surface.
  • the permanent magnet 41 further includes an outer diameter magnetic pole portion.
  • the outer diameter magnetic pole portion 411 is relatively close to the outer ring surface
  • the inner diameter magnetic pole portion 412 is relatively close to the outer ring surface
  • the side wall portion 402 of the housing 40 substantially surrounds the outer ring surface of the permanent magnet 41.
  • the magnet 42 roughly surrounds the inner circumferential surface of the permanent magnet 41, and the outer diameter magnetic pole portion 411 is attached to the side wall portion 402, and the inner diameter magnetic pole portion 412 is attached to the outer wall of the magnet guide 42.
  • the N pole passes through The magnetic case 40 is transmitted to the magnet core 44 and loops back to the S pole from the magnet core 44.
  • the S pole of the inner diameter magnetic pole portion 412 is returned from the shell 40 to the N through the magnet core 44 which is magnetically concentrated to the magnet 42 via the magnet core 44.
  • the poles form a closed-loop permanent magnet magnetic circuit, and the magnetic force is in the cavity 4 during the transmission process.
  • the housing 40 includes a top wall portion 401 and a side wall portion 402.
  • the top wall portion 401 is fixedly connected to the magnet core 44.
  • the side wall portion 402 substantially surrounds an outer peripheral portion of the permanent magnet 41, and the permanent magnet 41 is located on the side wall portion 402.
  • the top wall portion 401 is not in direct contact with the magnet guide 42 and a first distance L1 is formed between the top wall portion 401 and the upper end face of the magnet guide 42.
  • a second distance L2 is formed between the sidewalls of the two sides.
  • the top wall portion 401 and the side wall portion 402 are connected by a step portion 404, and the step portion abuts the upper end surface of the permanent magnet 41.
  • the step portion can be eliminated, and the top wall portion 401 and the side wall portion 402 can be directly connected.
  • the excitation line group 431 of the moving coil assembly 43 is located between the magnetism boss and the magnetism core 44.
  • the first distance L1 is greater than the second distance L2, and the magnetic force can be concentrated on the guide during the transmission of magnetic force.
  • the magnet guide boss of the magnet 42 causes the magnetic force to be more concentrated on the second distance L2,
  • the axial magnetic field generated by the moving coil assembly 43 and the radial magnetic field formed by the second interval L2 opposite to the axial magnetic field generate mutual repulsive force or traction force, because the magnetic force is more concentrated on the second interval L2
  • the excitation component 431 can sense enough magnetic force to drive the moving coil component 43 as a whole to reciprocate along the axis direction of the magnet core 44. Because the first distance L1 is greater than the second distance L2, according to the principle that the closer the distance, the easier it is to gather magnetism.
  • the outer diameter magnetic pole portion 411 is transmitted from the side wall portion 402 of the housing 40 to the magnet core 44 through the step portion and the top wall portion 401. Since the first distance L1 is greater than the second distance L2, the magnetic force is easier to move to the second distance. In the direction of L2, the inner diameter magnetic pole portion 412 also concentrates the magnetic force on the magnet boss during the magnetic force transmission process. Because the first distance L1 is larger than the second distance L2, the magnetic leakage in the direction of the first distance L1 is reduced. The magnetic loss is relatively reduced, that is, the magnetic force is finally concentrated in the second distance L2, and the magnetic force concentrated toward the first distance L1 is relatively reduced.
  • the finally transmitted electromagnetic force can be relatively increased so that the moving coil assembly 43 generates sufficient magnetic thrust to reciprocate along the axis direction of the magnet core 44 to drive the valve plug to move, thereby further improving the accuracy of the valve plug operation and the electromagnetic driving device. Reliability of the overall operation.
  • the permanent magnet 41 has a generally hollow ring structure, and can be provided by more than one inner and outer diameter radiation magnetization processing. In this embodiment, one permanent magnet 41 is used as an example for illustration.
  • the permanent magnet 41 includes an outer diameter magnetic pole portion 411 and an inner diameter magnetic pole portion 412.
  • the outer diameter magnetic pole portion 411 and the inner diameter magnetic pole portion 412 of the permanent magnet 41 are two different magnetic poles.
  • the inner wall is the inner wall of the side wall portion 402.
  • the inner diameter magnetic pole portion 412 is attached to the outer wall of the magnet 42.
  • the magnet 42 is located between the moving coil assembly 43 and the permanent magnet 41.
  • the field line group 431 is located at the magnetic field.
  • the magnetically permeable 42 includes the magnetically permeable boss. 42 may be an integral or split structure. In this embodiment, when the magnet guide 42 is a split structure, it includes a first magnet 421 and a second magnet 422. The first magnet 421 has a first magnet boss 421a.
  • the second magnetically conductive body 422 has a second magnetically conductive protrusion 422a, the first magnet guide 421 and the second magnet 422 are symmetrically arranged, and the first magnet guide 421a and the second magnet guide 422a are abutted; when the magnet guide 42 is a split structure, a third magnet 423 may be included And at least one of the fourth magnetic guide 424, the third magnetic guide 423, and the fourth conductor 424 is provided with a magnetic conductive boss, and the magnetic guide 42 can also be processed and formed as an integrated structure. What needs to be explained is the above method.
  • the structure of the magnetically permeable magnet 42 may also have other extensible solutions. It should also be considered to be within the protection scope claimed by the present invention.
  • the outer diameter magnetic pole portion 411 transmits magnetic force to the housing 40 as a magnetically permeable member.
  • the magnetic guide core 44, the first magnetic guide boss 421a, the second magnetic guide boss 422a, and the side wall of the magnetic guide core 44 form a second distance L2
  • the inner diameter magnetic pole portion 412 passes through the first magnetic guide boss 421a and the second
  • the magnetically permeable boss 422a transmits magnetic force to the magnetically permeable core to form a ring-shaped permanent magnetic circuit in the inner cavity 48 of the motor 4.
  • the housing 40 further includes an extension portion 403 extending outward from the side wall portion 402.
  • the electromagnetic driving device 4 further includes a cover plate 47.
  • the cover plate 47 includes a parallel portion 471 and a convex portion 472.
  • the parallel portion 471 cooperates with the extension portion 403 and The two can be provided with corresponding screw holes.
  • the housing 40 and the cover plate 47 can be fixedly connected by means of screws or welding.
  • the housing 40 can form a cavity of the electromagnetic driving device by fixed connection with the magnetic core 44 and the cover plate 47, respectively. 48.
  • the motor 4 is also provided with a sheath component 46.
  • the sheath component 46 may use an insulating member.
  • the magnet 41 plays a protective positioning role to prevent the magnet 41 from moving in the axial direction.
  • the sheath assembly 46 includes a first sheath 461 and a second sheath 462.
  • the first sheath 461 is located at a first distance L1 and the first sheath. 461 abuts on the top wall portion 401 and the upper end surface of the permanent magnet 41 and / or the magnetizer, the second sheath 462 abuts the lower end surface of the permanent magnet 41 and / or the magnetizer 42 and the convex portion of the cover plate 47 472 presses against the second sheath 462.
  • the sheath assembly 46 restricts the axial direction of the permanent magnet 41 to prevent the permanent magnet 41 from being moved in the axial direction.
  • the electromagnetic drive device includes a valve plug 4b.
  • the valve plug 4b includes a valve plug body 41b and a diaphragm 42b.
  • the electromagnetic drive device 4 further includes an adjustment mechanism 45 that adjusts the initial position of the wire frame 432.
  • the adjustment mechanism 45 includes adjustment The lever 451, the spring seat 452 and the spring 453.
  • the adjustment lever 451 is screwed into the magnet core 44 to adjust the initial position of the wire frame 432.
  • the spring seat 452 is fixed to the end boss of the adjustment lever 451, and the spring 453 is assembled on the spring seat. 452 and the inner boss of the wire frame 432.
  • the moving coil assembly 43 includes a field wire group 431 and a wire frame 432.
  • the field wire group 431 is fixedly mounted on the wire frame 432.
  • the wire frame 432 includes a wire frame head 432a.
  • the wire frame head 432a can abut against the valve plug 4b.
  • the adjustment mechanism 45 The initial position of the wire frame 432 is adjusted.
  • the exciting line group 431 After the DC power is connected, the exciting line group 431 generates an axial magnetic field.
  • the second distance L2 which is relatively concentrated, has a radial magnetic field relative to the axial magnetic field.
  • the mutual formation of mutual axial traction or repulsive force causes the moving coil assembly 43 to reciprocate along the axial direction of the magnet core 44.
  • the moving coil assembly 43 can drive the valve plug 4b to move axially downward.
  • the electromagnetic driving device 4 further includes a first reed assembly 51 and a second reed assembly 52.
  • the first reed assembly 51 includes a first reed 51 a and a first cover.
  • the second spring piece assembly 52 includes a second spring piece 52a and a second covering piece 52b
  • the first spring piece 51a includes a first fixing piece and a first elastic piece
  • the second spring piece 52a includes a second fixing member and a second elastic member.
  • the second elastic member is connected to the second fixing member and has a second elasticity.
  • the first spring component is located above the wire frame 432, and the second spring component is located below the wire frame 432.
  • the wire frame 432 includes a first wire frame end 4321 and a second wire.
  • the end portion 4322 of the wire frame 432 has a generally cylindrical structure.
  • the first end portion 4321 of the wire frame is located above the line frame 432, and the second end portion 4322 of the wire frame is located below the line frame 432.
  • the frame end portion 4321 is provided with a first wire frame end protrusion 4321a extending upward
  • the second wire frame end 4322 is provided with a second wire frame end protrusion 4322a extending downward.
  • the first elastic member of the first spring piece 51a is fixedly connected to the first wire frame end 4321
  • the second spring piece 52a The two elastic members are fixedly connected to the second wire frame end 4322.
  • the wire frame 432 is axially moved by the elastic support of the first elastic member and the second elastic member.
  • the first covering member 51b can be made of plastic insulation or rubber insulation. Covering the first fixing member, the second covering member 52b may cover the second fixing member by a plastic insulation or rubber insulation process, and the first spring leaf 51a and the second spring leaf 52a are etched or stamped by a thin elastic metal plate. Therefore, the first reed 51a and the second reed 52a may be made of stainless steel or bronze material, and the first cover 51b and the second cover 52b may be made of rubber or plastic material. In this embodiment, the first spring The structure of the leaf spring 51a and the second leaf spring 52a are substantially the same.
  • the first leaf spring assembly 51 is taken as an example to describe the specific structure of the first leaf spring 51a.
  • the first leaf spring 51a includes a first inner positioning ring 511 and a first outer ring.
  • a first elastic portion 513 is provided between the outer positioning rings 512, and the first inner positioning ring 511 and the first outer positioning ring 512 are elastically connected through the first elastic portion 513.
  • the first elastic portion 513 is generally arc-shaped and surrounds the first An inner positioning ring 511 and a first outer positioning ring 512 extend.
  • the first elastic portion 513 has a first end portion 5131 and a second end portion 5132.
  • the first end portion 5131 is connected to an outer peripheral wall of the first inner positioning ring 511.
  • the second end portion 5132 is connected to the inner peripheral wall of the first outer positioning ring 512, the first end portion 5131 and the second end portion 5132 have a first end gap S1, the first elastic portion 513 and the first inner positioning ring 511 There is a first inner gap groove 5111 therebetween, and a first outer gap groove 5121 between the first elastic portion 513 and the first outer positioning ring 512.
  • the first elastic member includes a first inner positioning ring 511 and a first The elastic portion 513.
  • the first fixing member includes a first outer positioning ring 512. The first elastic member is fixedly connected to the first wire frame end portion 4321.
  • the first inner positioning ring 511 is fixedly connected to the first wire frame end portion 4321.
  • the first inner positioning ring 511 is provided with a first positioning hole 511a, and the first positioning hole 511a It is adapted to the first wire frame end protrusion 4321a.
  • the first inner positioning ring 511 and the first wire frame end protrusion 4321a can be fixedly connected by welding positioning or riveting process.
  • the second spring piece 52a includes a first Two inner positioning rings 521, a second outer positioning ring 522, and a second elastic portion 523.
  • the second elastic member includes a second inner positioning ring 521 and a second elastic portion 523.
  • the second fixing member includes a second outer positioning ring 522.
  • the two elastic members are fixedly connected to the second wire frame end portion 4322.
  • the second inner positioning ring 521 is fixedly connected to the second wire frame end portion 4322.
  • the second inner positioning ring 521 is provided with a second positioning hole 521a.
  • the hole 521a is adapted to the second wire frame end protrusion 4322a.
  • the second inner positioning ring 521 and the second wire frame end protrusion 4322a can be fixedly connected by welding positioning or riveting process.
  • the second elastic portion 523 has a first
  • the third end portion 5231 and the fourth end portion 5232 have a second end gap S2 between the third end portion 5231 and the fourth end portion 5232, and a second inner portion between the second elastic portion 523 and the second inner positioning ring 521.
  • the gap groove 5211 has a second outer space between the second elastic portion 523 and the second outer positioning ring 522 Gap 5221.
  • the wire frame 432 of the moving coil assembly 43 can drive the first inner positioning ring 511 and the second inner positioning ring 521 to move together in an axial direction.
  • the first inner positioning ring 511 and the second inner positioning ring 521 are relative to the first When the outer positioning ring 512 and the second outer positioning ring 522 perform axial movement, the first elastic portion 513 of the first elastic member and the second elastic portion 523 of the second elastic member provide elastic support for them.
  • the first wire frame end portion 4321 is fixedly connected, and the second elastic member is fixedly connected to the second wire frame end portion 4322. That is, when the moving coil assembly 43 is actuated, the first inner positioning ring 511 and the second inner positioning ring 521 can be driven together.
  • the first reed 51a and the second reed 52a play a certain positioning role in the axial direction of the moving coil assembly 43 to keep the operation in the axial direction at all times to prevent deflection in the radial direction, and Due to the existence of the first elastic portion 513 and the second elastic portion 523, the movable coil assembly 43 can provide elastic support when it is actuated, and the movable coil assembly 43 can perform more accurate stroke control to further enhance the electromagnetic drive Device
  • the gas flow adjustment range improves the accuracy of the position adjustment or thrust adjustment of the moving coil assembly 43.
  • the moving coil assembly 43 is always maintained in the axial direction to prevent radial movement and can further prevent the moving coil assembly 43 and the guide magnet.
  • the first inner positioning ring 511 is fixedly connected to the first wire frame end protrusion 4321a
  • the second inner positioning ring 521 is fixedly connected to the second wire frame end protrusion 4322a
  • the first outer positioning ring 512 is also A first auxiliary hole 512a is provided.
  • the first covering member 51b is bonded to the first auxiliary hole 512a to cover the first outer positioning ring 512.
  • the second outer positioning ring 522 is also provided with a second auxiliary hole 522a and a second package.
  • the covering member 52b is bonded to the second auxiliary hole 522a to cover the second outer positioning ring 522.
  • the first covering member 51b is located at the first distance L1, and the first fixing member, that is, the first outer positioning ring 512 passes through the first covering member. 51b indirectly abuts against the top wall portion 401 and indirectly abuts against the magnetism guide 42, or the first fixing member, the first outer positioning ring 512, indirectly abuts against the top wall portion 401 and indirectly abuts against the magnetism guide 42 and the permanent magnet through the first covering member 51b
  • the upper end portion of 41 is indirectly abutted
  • the second fixing member that is, the second outer positioning ring 522 is indirectly abutted with the lower ends of the permanent magnet 41 and the magnet guide 42 through the second covering member 52b, or the second fixing member is the second outer positioning
  • the ring 522 abuts indirectly with the lower end portion of the magnetizer through the second covering member 52b, and the electromagnetic driving device further includes Plate 47, cover plate 47 is fixedly connected to the housing 40, the cover 47 includes a raised portion 471 and a parallel portion 472,
  • the first fixing member and the second fixing member can be positioned.
  • the first fixing member that is, the first outer positioning ring 512 is formed by the top wall.
  • the portion 401 is clamped and fixed by the magnet guide 42, and the first fixing member, the first outer positioning ring 512, directly abuts against the top wall portion 401 and the magnet guide 42; or the first fixing member, the first outer positioning ring 512, is formed by the top wall.
  • the portion 401, the permanent magnet 41, and the magnet guide 42 are clamped together to fix it.
  • the first fixing member namely the first outer positioning ring 512, directly abuts the top wall portion 401, the permanent magnet 41, and the magnet guide 42.
  • the first outer ring The positioning ring 512 directly abuts against the top wall portion 401 and the magnetizer 42 or the first outer positioning ring 512 directly abuts the top wall portion 401, the permanent magnet 41 and the magnetizer 42.
  • the electromagnetic driving device of the gas proportional valve can also eliminate the setting of the magnet guide 42. That is, the electromagnetic driving device includes a housing 40, a magnet core 44, a permanent magnet 41, a first reed assembly 51, and a second reed assembly 52.
  • the first reed 51a indirectly abuts against the top wall portion 401 and the permanent magnet 41 indirectly through the first covering piece 51b
  • the second reed 52a indirectly abuts against the lower end portion of the permanent magnet 41 through the second covering piece 52b.
  • the first fixing member and the second fixing member can be positioned, that is, the first spring piece 51a is clamped by the top wall portion 401 and the permanent magnet 41.
  • the first spring leaf 51a directly contacts the top wall portion 401 and the permanent magnet 41
  • the second spring leaf 52a directly contacts the lower end portion of the permanent magnet 41.
  • the first outer positioning ring 512 and the top wall portion 401 and the upper end of the permanent magnet 41 directly abut
  • the second outer positioning ring 522 directly abuts on the lower end of the permanent magnet 41.
  • the first elastic portion 513 and the first end gap S1 are provided in two or more, and the second elastic portion 523 and the second end gap S2 are also provided in two or more.
  • the two elastic portions 523 are equivalent to two stable support points.
  • the friction phenomenon requires the first reed assembly 51 and the second reed assembly 52 to be provided at the same time when the moving coil assembly 43 is axially positioned.
  • the technical solution of this embodiment can be applied to a linear motion mechanism with small stroke requirements and accurate Positioning requires a high degree of linear motor adjustment.
  • the following describes another embodiment provided by the present invention.
  • the difference between this embodiment and the previous embodiment lies in the manner of cooperation of the first reed 51a, the structure of the second reed 52a with the foregoing embodiment, and the manner of cooperation with other components.
  • the first fixing member becomes the first inner positioning ring 511
  • the first elastic member becomes the first outer positioning ring 512
  • the first inner positioning ring 511 is fixedly connected to the magnetic core 44.
  • An outer positioning ring 512 can be provided with positioning holes to fit the first wire frame end portion 4321 of the wire frame 432 and fixedly connect the first outer positioning ring 512 and the first wire frame end portion 4321.
  • the wire frame 432 can drive the first An outer positioning ring 512 performs an axial movement together.
  • the first elastic portion 513 provides elastic support to make the first outer positioning ring 512 perform an axial lifting movement relative to the first inner positioning ring 511.
  • the moving coil assembly 43 moves along the magnet core 44.
  • the wire frame 43 can carry the first outer positioning ring 512 that is the first elastic member and the second inner positioning ring 521 that is the second elastic member to perform axial movement together, and the first fixing member and the second fixing member Both have positioning, the first reed 51a and the first
  • the second reed 52a can provide a certain positioning action for the axial direction of the moving coil assembly 43 to prevent it from swaying in the radial direction, relatively reduce friction with the magnet core 44, and relatively raise the electromagnetic driving device and the gas having the electromagnetic driving device.
  • the operation reliability of the proportional valve, the structure and function of the related reeds have been described in detail, and will not be repeated here.
  • the motor 44 further includes a sheath component 46.
  • the sheath component 46 can be made of an insulating material.
  • the sheath component 46 can achieve better positioning of the permanent magnet 41 in the inner cavity of the housing.
  • the component 46 is used for protecting and positioning the permanent magnet 41 to prevent axial series movement.
  • the sheath component 46 can position the first reed component 51 and the second reed component 52, and the sheath component 46
  • the first sheath 461 includes a first sheath 461 and a second sheath 462.
  • the first sheath 461 is located at a first distance L1 and can block the contact between the magnet guide 42 and the top wall portion 401.
  • the first sheath 461 includes a first annular body, and the first annular body is provided with a recessed first step portion 4611.
  • the second sheath 462 includes a second annular body, and the second annular body is provided with a recessed first portion.
  • the first covering member 51b is provided with a first mating portion 511b
  • the second covering member 52b is provided with a second mating portion 521b.
  • the first stepped portion 4611 is in contact with the first mating portion 511b of the first covering member 51b. Cooperate to position the first reed assembly 51 at a first distance L1.
  • the first mating portion 511b is a stepped portion provided on the first covering member 51b, and the first covering member 51b can communicate with at least a part of the permanent magnet 41
  • the upper end face abuts; the second step portion 4621 abuts with the second mating portion 521b of the second covering member 52b to position the second reed assembly 52 at the lower end portion of the permanent magnet 41.
  • the second covering member 52b can abut against at least a part of the table surface of the permanent magnet 41. It should be noted that the first reed assembly 51 and the first sheath 461 can be positioned relative to each other.
  • the electromagnetic driving device provided by the present invention includes a first reed assembly and a second reed assembly.
  • the first reed assembly includes a first reed, the first reed includes a first fixing member, a first elastic member, and a second reed.
  • the assembly includes a second reed, the second reed includes a second fixing member and a second elastic member, and is fixedly connected to the first wire end of the wire frame through the first elastic member and the second wire of the second elastic member and the wire frame.
  • the end of the frame is fixedly connected, and the wire frame can carry the first elastic member and the second elastic member to perform axial movement together, that is, the first reed and the second reed provide a certain axial positioning for the wire frame in the axial movement.
  • the operation can reduce the possibility of the moving coil component swaying in the radial direction, reduce the friction between the moving coil component and the magnet core, and relatively improve the operation reliability of the electromagnetic driving device and the gas proportional valve having the electromagnetic driving device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

一种电磁驱动装置,包括第一簧片组件(51)以及第二簧片组件(52),第一簧片组件包括第一簧片(51a),第一簧片包括第一固定件以及第一弹性件(513),第二簧片组件包括第二簧片(52a),第二簧片包括第二固定件以及第二弹性件(523),通过第一弹性件与线架(432)的第一线架端部(4321)固定连接以及第二弹性件与线架的第二线架端部(4322)固定连接,通过设置第一簧片组件以及第二簧片组件能够减少动线圈组件朝径向的晃动,相对提升电磁驱动装置作动可靠性。还公开了一种燃气比例阀。

Description

燃气比例阀及其电磁驱动装置
本申请要求于2018年7月31日提交中国专利局、申请号为201810855825.X、发明名称为“燃气比例阀及其电磁驱动装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电磁驱动控制及燃气控制技术领域,特别涉及一种燃气比例阀及其电磁驱动装置。
背景技术
燃气比例阀包括电磁驱动装置,其包括动线圈组件和阀塞,通电时动线圈组件通过受到磁感应进行轴向升降运动,动线圈组件能够带动阀塞进行轴向运动以调节流经阀口的燃气流量,动线圈组件在高频率作动过程中因无法控制其朝径向的晃动,可能会引起产品作动不可靠的现象。
发明内容
本发明的主要目的在于提供一种燃气比例阀及其电磁驱动装置,动线圈组件在作动时能够减少其朝径向晃动的现象,相对提升燃气比例阀的作动可靠性。
本发明提供的电磁驱动装置包括第一簧片组件以及第二簧片组件,第一簧片组件包括第一簧片,第一簧片第一固定件以及第一弹性件,第二簧片组件包括第二簧片,第二簧片包括第二固定件以及第二弹性件,通过第一弹性件与线架的第一线架端部固定连接以及第二弹性件与线架的第二线架端部固定连接,能够减少动线圈组件朝径向的晃动,相对提升电磁驱动装置作动可靠性。
附图说明
图1为本发明提供燃气比例阀示意图;
图2为本发明提供的电磁驱动装置剖面示意图;
图3为本发明提供的电磁驱动装置的第一簧片结构示意图;
图4为本发明提供的电磁驱动装置的第二簧片结构示意图;
图5为本发明提供的电磁驱动装置的线架结构立体图;
图6为本发明提供的电磁驱动装置的第一簧片组件以及第二簧片组件立体示意图。
具体实施方式
如图1所示的燃气比例阀包括主阀座1,该主阀座1设有进口1a和出口1b,燃气从进口1a流入由出口1b流出,主阀座1可以为铝合金压铸成型,主阀座1固定连接有电磁驱动组件2、伺服驱动组件3以及电磁驱动装置4,主阀座1的内腔设有压差调节装置5,主阀座1还设有与上述阀相对应的第一阀口11、第二阀口12、阀口13以及主阀口14,燃气比例阀可以由电磁驱动组件2和伺服驱动组件3主导燃气安全开关用途,当该两者的其中一道断电或两道同时断电时候均会切断燃气流通,电磁驱动装置4和压差调节装置5主导燃气流量调节功能,通过控制电磁驱动装置4的供应电流进行间接驱动差压调节装置5的开度以实现通过主阀口14的燃气流量的精确调节,内腔还设有第一通道15以及第二通道16,燃气通过第一阀口11后经第二阀口12进入第一通道15以及第二通道16,由于第三阀口13为常开状态,燃气由第三阀口13流出通过泄压孔17排出至出口1b,出口1b与燃烧室相连接。
如图1结合图2所示,电磁驱动装置4包括外壳40、导磁铁芯44,该外壳40至少包括导磁部,该导磁部包括顶壁部401和侧壁部402,该顶壁部401和导磁铁芯44固定连接,导磁铁芯44的外周部设有动线圈组件43,动线圈组件43能够沿导磁铁芯44的轴线防线进行往复运动,该电磁驱动装置4设有腔体48,电磁驱动装置4还包括永磁体41以及导磁体42,永磁体41以及导磁体42位于腔体48,永磁体41以及导磁体42位于动线圈组件43的外周部,外壳40大致将永磁体41以及导磁体42罩设,永磁体41套设于导磁体42的外周部,永磁体41位于侧壁部402与导磁体42之间,顶壁部401与导磁体42不直接接触。具体地,外壳40分别通过与导磁铁芯44以及盖板47的固定连接大致形成该电机4的腔体48,外壳40具有导磁性且至少包括导磁部,该外壳40可以只包含导磁部即外壳40整体可由导磁金属板材冲压成型,外壳40也可以为低碳钢或其他导磁性材料制成,或者也可将导磁部作为嵌件与塑料件或其他材料注塑成型为该外壳40,只需保证该外壳40具有导磁性即可,外壳40整体大致呈筒状结构,导磁铁芯44为纯铁或低碳钢导磁材料车削加工而成,外壳40的顶壁部401与导磁铁芯44可通过焊接或铆接等方式固定连接,电磁驱动装置4包括动线圈组件43,动线圈组件43包括励磁线组431以及线架432,该励磁线组431与线架432固定连接,永磁体41以及导磁体42位于腔体48且永磁体41以及导磁体42位于动线圈组件43的外周部,作为具有导磁功能的外壳40大致将永磁体41以及导磁体42罩设,所示永磁体41整体可为大致中空环状结构,永磁体41可为一体环形结构也可为分体的环形结构,永磁体41设有内环面以及外环面,永磁体41还包括外径磁极部411以及内径磁极部 412,该外径磁极部411相对靠近外环面,该内径磁极部412相对靠近外环面,外壳40的侧壁部402大致将永磁体41的外环面围设,导磁体42大致将永磁体41的内环面围设,且外径磁极部411与侧壁部402相贴合,内径磁极部412与导磁体42的外壁相贴合,需要说明的是这里的贴合指的是两者可以相抵也可以留有一定的间隙只要确保永磁体41不掉落即可,当外径磁极部411为N极,内径磁极部412为S极时,N极通过具有导磁性的外壳40传递至导磁铁芯44由导磁铁芯44回路至S极,内径磁极部412的S极通过聚磁于导磁体42的导磁凸台通过导磁铁芯44由外壳40回至N极以形成闭环式的永磁磁路形态,磁力在传递过程中均在腔体48内进行。
该外壳40包括顶壁部401以及侧壁部402,顶壁部401与导磁铁芯44固定连接,侧壁部402大致将永磁体41的外周部围设,永磁体41位于该侧壁部402与导磁体42之间,该顶壁部401与导磁体42不直接接触且与导磁体42的上端面之间形成有第一间距L1,该导磁体42的导磁凸台与导磁铁芯44的侧壁之间形成有第二间距L2,需要说明的是本实施例中顶壁部401与侧壁部402通过台阶部404相连接,且该台阶部与永磁体41的上端面相抵,也可取消该台阶部,直接将顶壁部401以及侧壁部402相连,另外还有其他根据该实施例可变换或延伸的结构只需保证该顶壁部401与导磁体42的上端面之间形成有一定的间距即可,动线圈组件43的励磁线组431位于该导磁体凸台与导磁铁芯44之间,第一间距L1大于第二间距L2,磁力传递时磁力能够聚磁于导磁体42的导磁体凸台使磁力最终较为集中于该第二间距L2,通电状态下动线圈组件43产生的轴向磁场与在该第二间距L2形成的相对该轴向磁场的径向磁场之间产生相互的排斥力或牵 引力,因磁力较为集中于该第二间距L2,励磁组件431能够感应到足够的磁力以驱动动线圈组件43整体沿导磁铁芯44的轴线方向进行往复运动,因第一间距L1大于第二间距L2,根据距离越近越容易聚磁的原理,磁力传递过程中外径磁极部411由外壳40的侧壁部402经台阶部以及顶壁部401传递至导磁铁芯44,因第一间距L1大于第二间距L2,磁力更容易往第二间距L2的方向去聚集,同样在磁力传递过程中内径磁极部412将磁力聚磁于该导磁体凸台,因第一间距L1大于第二间距L2,磁力朝第一间距L1方向的漏磁减少即磁损相对减少,即磁力最终较为集中于该第二间距L2朝第一间距L1聚集的磁力相对减少,能够减少磁损增强导磁以及聚磁效果,改善漏磁现象最终所传递的电磁力能够相对增大使动线圈组件43产生足够的磁推力沿导磁铁芯44的轴线方向进行往复运动以带动阀塞进行运动,进而进一步提升阀塞作动的精度以及电磁驱动装置的整体作动的可靠性。
下面简单介绍永磁体41以及导磁体42,永磁体41大致呈中空环状结构,可设置一个以上内、外径辐射充磁式加工而成,本实施例中以一个永磁体41为例进行说明,永磁体41包括外径磁极部部411以及内径磁极部部412,永磁体41的外径磁极部部411以及内径磁极部部412为两个不同的磁极,外径磁极部部411与外壳40的内壁即侧壁部402的内壁相贴合,内径磁极部部412与导磁体42的外壁相贴合,导磁体42位于动线圈组件43以及永磁体41之间,励磁线组431位于导磁凸台和导磁铁芯44之间,励磁线组431随线架432进行轴向升降过程中始终位于导磁凸台和导磁铁芯44之间,导磁体42包括导磁凸台,该导磁体42可为一体或分体结构, 在本实施例中当导磁体42为分体结构时包括第一导磁体421以及第二导磁体422,该第一导磁体421具有第一导磁体凸台421a,该第二导磁体422具有第二导磁体凸台422a,第一导磁体421与第二磁体422呈对称设置,第一导磁体凸台421a与第二导磁体凸台422a贴合;当导磁体42为分体结构时可包括第三导磁体423以及第四导磁体424,第三导磁体423以及第四导体424的两者中的至少一个设有导磁凸台,该导磁体42也可为一体结构加工成型,需要说明的是除以上方式外该导磁体42的结构还可以有其他可延伸的方案也应当被认为在本发明要求的保护范围中,本发明提供的实施例中外径磁极部411通过作为导磁件的外壳40传递磁力至导磁铁芯44,第一导磁体凸台421a与第二导磁体凸台422a与导磁铁芯44的侧壁形成有第二间距L2,内径磁极部412通过第一导磁体凸台421a与第二导磁体凸台422a传递磁力至导磁铁芯以形成在电机4内腔48的环形永磁磁路型态,。
外壳40还包括由侧壁部402向外延伸的延伸部403,电磁驱动装置4还包括盖板47,盖板47包括平行部471以及凸起部472,平行部471与延伸部403相配合且两者可开设有对应的螺钉孔,外壳40与盖板47可通过螺钉或焊接等方式固定连接,外壳40分别通过与导磁铁芯44以及盖板47的固定连接大致形成电磁驱动装置的腔体48,为使永磁体41在腔体48实现更好的定位,电机4,还设有护套组件46,护套组件46可采用绝缘件,本实施提供的为塑料件注塑成型用于对永磁体41起到防护定位作用防止其在轴向方向的串动,护套组件46包括第一护套461以及第二护套462,第一护套461位于第一间距L1且该第一护套461分别与顶壁部401以及与 永磁体41和/或导磁体的上端面相抵,第二护套462与永磁体41和/或导磁体42的下端部台面相抵,盖板47的凸起部472对第二护套462进行压抵。护套组件46对永磁体41的轴向进行限位防止其在轴向方向的串动。
该电磁驱动装置包括阀塞4b,阀塞4b包括阀塞本体41b以及隔膜片42b,电磁驱动装置4还包括调节机构45,调节机构45对线架432的初始位置进行调节,调节机构45包括调节杆451、弹簧座452以及弹簧453,调节杆451旋入导磁铁芯44内对线架432的初始位置进行调节,弹簧座452的固定于调节杆451的端面凸台,弹簧453装配在弹簧座452以及线架432的内凸台上。动线圈组件43包括励磁线组431以及线架432,励磁线组431固定安装于线架432,线架432包括线架头432a,线架头432a能够与阀塞4b相抵接配合,调节机构45对线架432的初始位置进行调节,接入直流电源后励磁线组431产生轴向磁场,磁力较为集中的第二间距L2具有相对轴向磁场的径向磁场,该轴向磁场与径向磁场相互作用形成相互轴向的牵引力或排斥力使驱动动线圈组件43沿导磁铁芯44的轴线方向进行往复运动,动线圈组件43能够带动阀塞4b轴向向下运动。
如图3、图4结合图2所示,电磁驱动装置4还包括第一簧片组件51以及第二簧片组件52,该第一簧片组件51包括第一簧片51a以及第一包覆件51b,该第二簧片组件52包括第二簧片52a以及第二包覆件52b,该第一簧片51a包括第一固定件以及第一弹性件,该第一弹性件与第一固定件相连接且第一弹性件能够相对第一固定件进行轴向运动,第二簧片52a包括第二固定件以及第二弹性件,第二弹性件与第二固定件相连接且第二弹性件能够相对第二固定件进行轴向运动,第一簧片组件位于线架 432的上方,第二簧片组件位于线架432的下方,线架432包括第一线架端部4321以及第二线架端部4322,该线架432整体呈大致圆筒状结构,第一线架端部4321位于该线架432的上方,第二线架端部4322位于该线架432的下方,且第一线架端部4321设有朝上方延伸的第一线架端部凸起4321a,第二线架端部4322设有朝下方延伸的第二线架端部凸起4322a,在一种实施例中第一簧片51a的第一弹性件与第一线架端部4321固定连接,第二簧片52a的第二弹性件与第二线架端部4322固定连接,线架432由第一弹性件以及第二弹性件的弹性支撑作用进行轴向运动,,第一包覆件51b可通过塑胶绝缘或橡胶绝缘工艺包覆第一固定件,第二包覆件52b可通过塑胶绝缘或橡胶绝缘工艺包覆第二固定件,第一簧片51a和第二簧片52a由较薄的弹性金属板蚀刻或冲压而成,第一簧片51a和第二簧片52a可为不锈钢或青铜材料制成,第一包覆件51b和第二包覆件52b可由橡胶或塑料材料制成,本实施例中第一簧片51a和第二簧片52a的结构大致相同,下面以第一簧片组件51为例具体介绍第一簧片51a的具体结构,第一簧片51a包括第一内定位环511、第一外定位环512以及第一弹性部513,该第一内定位环511以及第一外定位环512之间设有第一弹性部513,第一内定位环511以及第一外定位环512通过第一弹性部513进行弹性连接,该第一弹性部513大致呈弧状结构并围绕第一内定位环511以及第一外定位环512进行延伸,第一弹性部513具有第一端部5131以及第二端部5132,第一端部5131与第一内定位环511的外周壁相连接,第二端部5132与第一外定位环512的内周壁相连接,第一端部5131与第二端部5132具有第一端部间隙S1,第一弹性部513与第一内定位环511之间具有第一内间隙 槽5111,第一弹性部513与第一外定位环512之间具有第一外间隙槽5121,本实施例中第一弹性件包括第一内定位环511以及第一弹性部513,第一固定件包括第一外定位环512,第一弹性件与第一线架端部4321固定连接,具体地,第一内定位环511与第一线架端部4321固定连接,第一内定位环511设有第一定位孔511a,该第一定位孔511a与第一线架端部凸起4321a相适配,该第一内定位环511和第一线架端部凸起4321a可通过熔接定位或铆合工艺进行固定连接,第二簧片52a包括第二内定位环521、第二外定位环522以及第二弹性部523,第二弹性件包括第二内定位环521以及第二弹性部523,第二固定件包括第二外定位环522,第二弹性件与第二线架端部4322固定连接,具体地,第二内定位环521与第二线架端部4322固定连接,第二内定位环521设有第二定位孔521a,该第二定位孔521a与第二线架端部凸起4322a相适配,该第二内定位环521与第二线架端部凸起4322a可通过熔接定位或铆合工艺进行固定连接,第二弹性部523具有第三端部5231以及第四端部5232,第三端部5231和第四端部5232之间具有第二端部间隙S2,第二弹性部523与第二内定位环521之间具有第二内间隙槽5211,第二弹性部523与第二外定位环522之间具有第二外间隙槽5221。
通电状态下动线圈组件43的线架432能够带动该第一内定位环511以及第二内定位环521一起进行轴向运动,该第一内定位环511以及第二内定位环521相对第一外定位环512以及第二外定位环522进行轴向运动时,第一弹性件的第一弹性部513以及第二弹性件的第二弹性部523为其提供弹性支持,通过第一弹性件与第一线架端部4321固定连接,第二弹性 件与第二线架端部4322固定连接,即当动线圈组件43进行作动时能够带动第一内定位环511以及第二内定位环521一起进行作动,第一簧片51a以及第二簧片52a对动线圈组件43的轴向起到一定的定位作用,使其始终保持在轴向方向的作动防止朝径向偏斜晃动,且因第一弹性部513以及第二弹性部523的存在,在动线圈组件43作动时能够为其提供弹性的支撑,动线圈组件43作动时能够进行较为精确的行程控制从而进一步提升电磁驱动装置的燃气流量调节范围,提高动线圈组件43的位置调节或推力调节精度,动线圈组件43始终保持在轴向的作动能够避免朝径向晃动的情况,能进一步防止动线圈组件43与导磁铁芯44以及其他零部件之间产生摩擦的情况,克服了背景技术中动线圈组件在高频率作动过程中因轴向没有定位可能会朝径向进行晃动,进而引起电磁驱动装置乃至燃气比例阀作动不可靠的现象。
在该实施例中第一内定位环511与第一线架端部凸起4321a固定连接,第二内定位环521与第二线架端部凸起4322a固定连接,且第一外定位环512还设有第一辅助孔512a,第一包覆件51b与第一辅助孔512a粘合以包覆第一外定位环512,第二外定位环522还设有第二辅助孔522a,第二包覆件52b与第二辅助孔522a粘合以包覆第二外定位环522,第一包覆件51b位于第一间距L1,第一固定件即第一外定位环512通过第一包覆件51b与顶壁部401间接相抵且与导磁体42间接相抵,或者第一固定件即第一外定位环512通过第一包覆件51b与顶壁部401间接相抵且与导磁体42以及永磁体41的上端部间接相抵,第二固定件即第二外定位环522通过第二包覆件52b与永磁体41和导磁体42的下端部间接抵接,或者第二固定件即第 二外定位环522通过第二包覆件52b与导磁体的下端部间接相抵,且该电磁驱动装置还包括盖板47,盖板47与外壳40固定连接,盖板47包括平行部471以及凸起部472,凸起部472对所述第二包覆件52b进行压抵。包覆件51b以及第二包覆件52b可用于与外壳40的绝缘避免第一簧片51a和第二簧片52a距离外壳40过近而产生聚磁效应。
在上述方案中如未设置第一包覆件51b以及第二包覆件52b也可实现将第一固定件以及第二固定件进行定位,第一固定件即第一外定位环512由顶壁部401与导磁体42夹持使其固定,第一固定件即第一外定位环512与顶壁部401以及导磁体42直接相抵;或者第一固定件即第一外定位环512由顶壁部401、永磁体41以及导磁体42一起夹持使其固定,第一固定件即第一外定位环512与顶壁部401、永磁体41以及导磁体42直接相抵,具体地,第一外定位环512与顶壁部401以及导磁体42直接相抵或者第一外定位环512与顶壁部401、永磁体41以及导磁体42直接相抵。
该燃气比例阀的电磁驱动装置也可取消导磁体42的设置,即该电磁驱动装置包括外壳40、导磁铁芯44、永磁体41、第一簧片组件51以及第二簧片组件52,该方案中第一簧片51a通过第一包覆件51b与顶壁部401间接相抵且与永磁体41间接相抵,第二簧片52a通过第二包覆件52b与永磁体41的下端部间接抵接,且如未设置第一包覆件51b以及第二包覆件52b也可将第一固定件以及第二固定件进行定位,即第一簧片51a由顶壁部401与永磁体41夹持将其固定,第一簧片51a与顶壁部401以及永磁体41直接相抵,第二簧片52a与永磁体41的下端部直接相抵,具体地,第一外定位环512与顶壁部401以及永磁体41的上端部直接相抵,第二外定位环 522与永磁体41的下端部直接相抵。
第一弹性部513以及第一端部间隙S1设置为2个以上,第二弹性部523以及第二端部间隙S2也设置为2个以上,通过设置2个第一弹性部513以及2个第二弹性部523即相当于稳定的2个支撑点,在动线圈组件43进行作动过程中提高了轴向运动位置的稳定性防止其朝径向方向发生摇摆以及与内、外侧零部件发生的摩擦现象,在对动线圈组件43进行轴向定位时需同时设置第一簧片组件51以及第二簧片组件52,本实施例的技术方案能够适用于行程要求较小的直线运动机构以及精确度要求高的直线电机位置调节。
下面介绍本发明提供的另外一种实施方式,该实施方式与前述实施例的不同在于第一簧片51a的配合方式,第二簧片52a与前述实施例的结构以及与其他零部件的配合方式相同,该实施例中第一固定件变成了第一内定位环511,第一弹性件变成了第一外定位环512,该第一内定位环511与导磁铁芯44固定连接,第一外定位环512可开设有定位孔与线架432的第一线架端部4321相适配且使第一外定位环512与第一线架端部4321固定连接,线架432能带动第一外定位环512一起进行轴向作动,第一弹性部513提供弹性支撑作用使第一外定位环512相对第一内定位环511进行轴向升降运动,动线圈组件43沿导磁铁芯44的轴线方向进行作动时线架43能够带着第一外定位环512即第一弹性件以及第二内定位环521即第二弹性一起进行轴向运动,且第一固定件第二固定件都有定位,第一簧片51a以及第二簧片52a能够为动线圈组件43的轴向提供一定的定位作动,防止其朝径向方向晃动相对减少与导磁铁芯44的摩擦,相对提升电磁驱动 装置以及具有该电磁驱动装置的燃气比例阀的作动可靠性,相关簧片结构和作用已进行了详细的陈述在此不再一一赘述。
如图2所示电机44还包括有护套组件46,护套组件46可以由绝缘材料制作而成,一方面护套组件46能够对永磁体41在外壳内腔实现更好的定位,护套组件46用于对永磁体41起到防护定位作用防止其轴向串动,另一方面护套组件46能对第一簧片组件51以及第二簧片组件52可进行定位,护套组件46包括第一护套461以及第二护套462,第一护套461位于第一间距L1,能对导磁体42与顶壁部401的接触起到阻隔作用,第一护套461的上端部与外壳40的顶壁部401相抵,第一护套461与永磁体41的至少部分上端面相抵,盖板47的凸起部472对第二护套462进行压抵使其与永磁体41的至少部分下端部相抵,护套组件46对永磁体41的轴向进行限位防止其在轴向方向的串动。其中第一护套461包括第一环状本体,第一环状本体设有凹陷的第台阶部4611;该第二护套462包括第二环状本体,第二环状本体设有凹陷的第二台阶部4621。该第一包覆件51b设有第一配合部511b,第二包覆件52b设有第二配合部521b,该第一台阶部4611与第一包覆件51b的第一配合部511b相抵接配合以使第一簧片组件51第一间距L1定位,该第一配合部511b为设于第一包覆件51b的台阶部,该第一包覆件51b能够与永磁体41的至少又一部分上端面相抵;该第二台阶部4621与第二包覆件52b的第二配合部521b相抵接配合以使第二簧片组件52在永磁体41的下端部定位,该第二配合部511b设于第一包覆件511b的台阶部,该第二包覆件52b能够与永磁体41的至少又一部分台面相抵,需要说明的是第一簧片组件51可与第一护套461互相位置,也可位于第一 护套461的上方位置,第二簧片组件52可位于第二护套462的下方位置。本发明提供的电磁驱动装置包括第一簧片组件以及第二簧片组件,第一簧片组件包括第一簧片,第一簧片包括第一固定件以及第一弹性件,第二簧片组件包括第二簧片,第二簧片包括第二固定件以及第二弹性件,通过第一弹性件与线架的第一线架端部固定连接以及第二弹性件与线架的第二线架端部固定连接,线架能够带着第一弹性件以及第二弹性件一起进行轴向运动,即第一簧片以及第二簧片为线架在轴向运动时提供一定的轴向定位作动,能够减少动线圈组件朝径向晃动的可能性,减少动线圈组件与导磁铁芯的摩擦,相对提升电磁驱动装置以及具有该电磁驱动装置的燃气比例阀的作动可靠性。
以上仅是本发明的优选实施方式,需要说明的是本发明所提到的“第一、第二”等相关序数词仅仅为对相关零部件的命名方式不应当认为对各个零部件有相关顺序上的限制,同样提到的“内、外”等方位词也是基于本发明提供的说明书附图的说明,本发明提供的簧片结构不局限于本发明所提供的几个实施例的电磁驱动装置的结构还可以应用在其他的电磁驱动装置结构中,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应当视为本发明的保护范围。

Claims (14)

  1. 燃气比例阀,其特征在于,包括主阀座(1)和电磁驱动装置,所述主阀座(1)设有阀口(13),所述电磁驱动装置能够接近或远离所述阀口(13),所述电磁驱动装置包括外壳(40)、动线圈组件(43)、导磁铁芯(44)、永磁体(41)、导磁体(42)、第一簧片组件(51)以及第二簧片组件(52),所述外壳(40)包括顶壁部(401),所述动线圈组件(43)包括线架(432),所述线架(432)包括第一线架端部(4321)以及第二线架端部(4322),所述第一簧片组件(51)包括第一簧片(51a),所述第二簧片组件(52)包括第二簧片(52a),所述第一簧片(51a)包括第一固定件以及与所述第一固定件相连的第一弹性件,所述第二簧片(52a)包括第二固定件以及与所述第二固定件相连的第二弹性件,所述第一线架端部(4321)与所述第一弹性件的第一外定位环固定连接,所述第二线架端部(4322)与所述第二弹性件的第二外定位环固定连接,所述第一固定件与所述导磁铁芯(44)固定连接;所述第一线架端部(4321)与所述第一弹性件的第一内定位环固定连接,所述第二线架端部(4322)与所述第二弹性件的第二内定位环固定连接,所述第一固定件与所述顶壁部(401)直接或间接相抵且所述第一固定件与所述永磁体(41)以及所述导磁体(42)的至少一者直接或间接相抵,所述第二固定件与所述永磁体(41)以及所述导磁体(42)的至少一者直接或间接相抵。
  2. 根据权利要求1所述的燃气比例阀,其特征在于,所述第一簧片(51a)包括第一内定位环(511)、第一外定位环(512)以及第一弹性部(513),所述第一内定位环(511)以及所述第一外定位环(512)通过所 述第一弹性部(513)弹性连接。
  3. 根据权利要求2所述的燃气比例阀,其特征在于,所述第一弹性部(513)呈弧状结构并沿所述第一内定位环(511)以及所述第一外定位环(512)进行延伸,所述第一弹性部(513)具有第一端部(5131)以及第二端部(5132),所述第一端部(5131)与所述第一内定位环(511)的外周壁相连接,所述第二端部(5132)与所述第一外定位环(512)的内周壁相连接,所述第一端部(5131)与所述第二端部(5132)之间具有第一端部间隙(S1),所述第一弹性部(513)与所述第一内定位环(511)之间具有第一内间隙槽(5111),所述第一弹性部(513)与第一外定位环(512)之间具有第一外间隙槽(5121)。
  4. 根据权利要求3所述的燃气比例阀,其特征在于,所述第一端部间隙(S1)和所述第一弹性部(513)设置2个以上。
  5. 根据权利要求3所述的电磁驱动装置,其特征在于,所述第一线架端部(4321)设有第一线架端部凸起(4321a),所述第一弹性件包括所述第一外定位环(512)以及第一弹性部(513),所述第一固定件包括所述第一内定位环(511),所述第一外定位环(512)与所述第一线架端部凸起(4321a)固定连接,所述第一内定位环(511)与所述导磁铁芯(44)固定连接,所述第一外定位环(512)与所述线架(432)一起相对所述第一内定位环(511)进行轴向运动。
  6. 根据权利要求3所述的燃气比例阀,其特征在于,所述第一线架端部(4321)设有第一线架端部凸起(4321a),所述第一弹性件包括所述第一内定位环(511)以及第一弹性部(513),所述第一固定件包括所述第一 外定位环(512),所述第一内定位环(511)与所述第一线架端部凸起(4321a)固定连接,所述第一簧片组件(51)包括第一包覆件(51b),所述第一外定位环(512)通过第一包覆件(51b)与所述顶壁部(401)相抵,且所述第一外定位环(512)与所述导磁体(42)或与所述永磁体(41)以及所述导磁体(42)间接相抵,所述第一内定位环(511)与所述线架(432)一起相对所述第一外定位环(512)进行轴向运动。
  7. 根据权利要求6所述的电磁驱动装置,其特征在于,所述第一内定位环(511)具有第一定位孔(511a),所述第一定位孔(511a)与所述第一线架端部凸起(4321a)相适配,所述第一外定位环(512)设有第一辅助孔(512a),所述第一包覆件(51b)与所述第一辅助孔(512a)相粘合以包覆所述第一外定位环(512)。
  8. 根据权利要求1所述的燃气比例阀,其特征在于,所述第二簧片(52a)包括第二内定位环(521)、第二外定位环(522)以及第二弹性部(523),所述第二弹性部(523)具有第三端部(5231)以及第四端部(5232),所述第三端部(5231)和所述第四端部(5232)之间具有第二端部间隙(S2),所述第二弹性部(523)与所述第二内定位环(521)之间具有第二内间隙槽(5211),所述第二弹性部(523)与所述第二外定位环(522)之间具有第二外间隙槽(5221)。
  9. 根据权利要求8所述的燃气比例阀,其特征在于,所述第二线架端部(4322)设有第二线架端部凸起(4322a),所述第二弹性件包括所述第二内定位环(521)以及所述第二弹性部(523),所述第二固定件包括所述第二外定位环(522),所述第二内定位环(521)与所述第二线架端部凸起 (4322a)固定连接,所述第二簧片组件(52)包括第二包覆件(52b),所述第二外定位环(522)通过第二包覆件(52b)与所述导磁体(42)或与所述永磁体(41)以及所述导磁体(42)间接相抵。
  10. 根据权利要求1所述的燃气比例阀,其特征在于,所述电磁驱动装置还包括护套组件(46),所述护套组件(46)包括第一护套(461)以及第二护套(462),所述第一簧片组件(51)包括第一包覆件(51b),所述第二簧片组件(52)包括第二包覆件(52b),所述护套组件(46)可由绝缘材料制成,所述第一护套(461)具有第一台阶部(4611),所述第二护套(462)具有第二台阶部(4621),所述第一台阶部(4611)与所述第一配合部(511b)相抵,所述第台阶部(4621)与所述第二配合部(521b)相抵。
  11. 根据权利要求10所述的燃气比例阀,其特征在于,所述顶壁部(401)与所述导磁体(42)之间形成有第一间距(L1),所述第一护套(461)以及所述第一包覆件(51b)位于所述第一间距(L1)。
  12. 根据权利要求10所述的燃气比例阀,其特征在于,所述电磁驱动装置还包括盖板(47),所述外壳(40)与所述盖板(47)固定连接,所述盖板(47)对所述第二护套(462)相抵。
  13. 电磁驱动装置,其特征在于包括动线圈组件(43),所述动线圈组件(43)包括线架(432),所述线架(432)包括第一线架端部(4321)以及第二线架端部(4322),所述电磁驱动装置还包括第一簧片组件(51)以及第二簧片组件(52),所述第一簧片组件(51)包括第一簧片(51a),所述第二簧片组件(52)包括第二簧片(52a),所述第一簧片(51a)与所述 第一线架端部(4321)固定连接,所述第二簧片(52a)与所述第二线架端部(4322)固定连接,所述第一簧片(51a)为权利要求2-7所述的任一一项第一簧片(51a),所述第二簧片(52a)为权利要求8-9所述的任一一项第二簧片(52a)。
  14. 燃气比例阀,其特征在于,包括主阀座(1)和电磁驱动装置,所述主阀座(1)设有阀口(13),所述电磁驱动装置能够接近或远离所述阀口(13),所述电磁驱动装置包括外壳(40)、动线圈组件(43)、导磁铁芯(44)、永磁体(41)、第一簧片组件(51)以及第二簧片组件(52),所述外壳(40)包括顶壁部(401),所述动线圈组件(43)包括线架(432),所述线架(432)包括第一线架端部(4321)以及第二线架端部(4322),所述第一簧片组件(51)包括第一簧片(51a),所述第二簧片组件(52)包括第二簧片(52a),所述第一簧片(51a)包括第一固定件以及与所述第一固定件相连的第一弹性件,所述第二簧片(52a)包括第二固定件以及与所述第二固定件相连的第二弹性件,所述第一线架端部(4321)与所述第一弹性件固定连接,所述第二线架端部(4322)与所述第二弹性件固定连接,所述第一固定件与所述导磁铁芯(44)固定连接,或者所述第一固定件与所述顶壁部(401)以及所述永磁体(41)直接或间接相抵,所述第二固定件与所述永磁体(41)直接或间接相抵。
PCT/CN2019/098297 2018-07-31 2019-07-30 燃气比例阀及其电磁驱动装置 WO2020024920A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113108110A (zh) * 2021-03-17 2021-07-13 绍兴艾柯电气有限公司 先导驱动结构及燃气比例阀

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113108111B (zh) * 2021-03-30 2022-10-18 绍兴艾柯电气有限公司 先导驱动装置及燃气比例阀
CN113187946B (zh) * 2021-07-02 2021-09-07 星宇电子(宁波)有限公司 呼吸机用双碟簧式精密比例阀

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH102446A (ja) * 1996-06-19 1998-01-06 Rinnai Corp 比例制御弁装置
JP2001317652A (ja) * 2000-05-01 2001-11-16 Time Engineering Co Ltd 電磁比例弁
CN1789768A (zh) * 2004-12-14 2006-06-21 浙江三花制冷集团有限公司 电子膨胀阀
CN101498378A (zh) * 2008-01-31 2009-08-05 浙江三花股份有限公司 一种电动阀
CN101576172A (zh) * 2008-05-09 2009-11-11 浙江三花股份有限公司 套装式电子阀
CN201588991U (zh) * 2009-12-30 2010-09-22 湛江中信电磁阀有限公司 电子型燃气\空气比例阀
CN201636417U (zh) * 2009-12-14 2010-11-17 黄依华 燃气电磁比例阀

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725590A1 (de) * 1987-08-01 1989-02-09 Staiger Steuerungstech Membranventil
DE19655090C2 (de) * 1996-03-01 2000-04-27 Bosch Gmbh Robert Elektromagnetisch betätigtes Wegeventil
US6343751B1 (en) * 1999-02-23 2002-02-05 Aisan Kogyo Kabushiki Kaisha Electromagnetic fuel injection valve
JP4067786B2 (ja) * 2001-06-26 2008-03-26 シーケーディ株式会社 電磁弁
JP2005265097A (ja) * 2004-03-19 2005-09-29 Advance Denki Kogyo Kk 比例制御弁
TWI308814B (en) * 2006-04-19 2009-04-11 Chen Lin Teng Producible reaction voltage outputted single-phase electromotor
CN101686000B (zh) * 2008-09-26 2012-11-21 鸿富锦精密工业(深圳)有限公司 弹片成型装置及采用该成型装置制作弹片的方法
CN201273953Y (zh) * 2008-10-09 2009-07-15 华宏新技股份有限公司 镜头致动装置
JP5617196B2 (ja) * 2009-07-02 2014-11-05 マックス株式会社 多段圧縮機
CN201723807U (zh) * 2010-06-04 2011-01-26 赵洪东 磁力燃气定时阀
JP6036143B2 (ja) * 2012-10-11 2016-11-30 ミツミ電機株式会社 発電装置
TWM447970U (zh) * 2012-11-13 2013-03-01 Hwei Keh Entpr Co Ltd 燃氣供給閥(二)
CN106523723B (zh) * 2016-12-30 2019-05-24 西安航天动力研究所 一种流量控制电磁阀
TWM564146U (zh) * 2018-04-19 2018-07-21 黃依華 燃氣電磁閥的懸浮式可動線圈

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH102446A (ja) * 1996-06-19 1998-01-06 Rinnai Corp 比例制御弁装置
JP2001317652A (ja) * 2000-05-01 2001-11-16 Time Engineering Co Ltd 電磁比例弁
CN1789768A (zh) * 2004-12-14 2006-06-21 浙江三花制冷集团有限公司 电子膨胀阀
CN101498378A (zh) * 2008-01-31 2009-08-05 浙江三花股份有限公司 一种电动阀
CN101576172A (zh) * 2008-05-09 2009-11-11 浙江三花股份有限公司 套装式电子阀
CN201636417U (zh) * 2009-12-14 2010-11-17 黄依华 燃气电磁比例阀
CN201588991U (zh) * 2009-12-30 2010-09-22 湛江中信电磁阀有限公司 电子型燃气\空气比例阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113108110A (zh) * 2021-03-17 2021-07-13 绍兴艾柯电气有限公司 先导驱动结构及燃气比例阀
CN113108110B (zh) * 2021-03-17 2023-01-03 绍兴艾柯电气有限公司 先导驱动结构及燃气比例阀

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