WO2020143550A1 - 一种电子阀的双密封结构、一种电子阀的密封结构和一种静密封结构的电子阀 - Google Patents

一种电子阀的双密封结构、一种电子阀的密封结构和一种静密封结构的电子阀 Download PDF

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Publication number
WO2020143550A1
WO2020143550A1 PCT/CN2020/070301 CN2020070301W WO2020143550A1 WO 2020143550 A1 WO2020143550 A1 WO 2020143550A1 CN 2020070301 W CN2020070301 W CN 2020070301W WO 2020143550 A1 WO2020143550 A1 WO 2020143550A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
sealing
seal ring
electronic valve
Prior art date
Application number
PCT/CN2020/070301
Other languages
English (en)
French (fr)
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 CN201920027853.2U external-priority patent/CN209444826U/zh
Priority claimed from CN201910016511.5A external-priority patent/CN109538818A/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
Priority to DE112020000356.6T priority Critical patent/DE112020000356T5/de
Publication of WO2020143550A1 publication Critical patent/WO2020143550A1/zh
Priority to US17/370,754 priority patent/US11585443B2/en

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Classifications

    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
    • F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0457—Packings
    • F16K5/0464—Packings in the housing
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0457—Packings
    • F16K5/0485—Spindle sealing

Definitions

  • the present disclosure 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, in particular to a double sealing structure of an electronic valve, a sealing structure of an electronic valve and a static seal Structure of the electronic valve.
  • the electronic valve product is configured as a new energy cooling system to control the flow direction and flow size of the fluid medium circuit.
  • the objective of the present disclosure includes, for example, to provide a double-sealed structure of an electronic valve to solve at least one of the above technical problems existing in the prior art.
  • the objective of the present disclosure also includes, for example, providing a sealing structure of an electronic valve to solve at least one of the above technical problems existing in the prior art.
  • the purpose of the present disclosure also includes, for example, providing an electronic valve with a static seal structure to solve at least one of the above technical problems existing in the prior art.
  • the present disclosure provides a double seal structure of an electronic valve, which includes a valve body and a valve core.
  • the valve body is integrally formed by injection molding, and a first seal is provided between the valve body and the valve core to prevent fluid medium from leaking to the upper power device installation space A ring and a second sealing ring, the first sealing ring and the second sealing ring are spaced up and down along the axial direction of the valve core.
  • the valve body includes an upper portion of the valve body, a neck portion of the valve body and a lower portion of the valve body connected in sequence, and the first seal ring and the second seal ring are disposed on the neck portion of the valve body.
  • a convex ring is provided on the inner circumferential surface of the valve body, the convex ring facing away from the top plane of the lower part of the valve body, the inner circumferential surface of the valve body and the outer circumferential surface of the valve stem together form an annular first seal ring groove, the first The sealing ring is arranged in the first sealing groove; the bottom plane of the convex ring close to the lower part of the valve body, the inner circumferential surface of the neck portion of the valve body and the outer circumferential surface of the valve stem together constitute a second sealing ring groove, and the second sealing ring is arranged in the first Two grooves in the seal ring.
  • the first seal ring is spaced from the top plane, and/or the second seal ring is spaced from the bottom plane.
  • the valve core includes a core body and a valve stem, the core body is provided with a flow channel, and a step surface protruding from the outer peripheral surface of the valve stem is provided at the junction of the valve stem and the core body; the first seal ring and the second The sealing ring is sleeved outside the valve stem.
  • the present disclosure provides a sealing structure of an electronic valve, which includes a sealing member, a valve core and a connecting pipe, the sealing member has an inlet end connected to the valve core and an outlet end connected to the connecting pipe, and is characterized in that the inlet end of the sealing member and the valve
  • the core is interference-fitted to form a first sealing area;
  • the inner wall of the seal is provided with a ring-shaped rib, and the rib and the outer peripheral surface of the end of the take-up are interference-fitted to form a second sealing area;
  • the end of the take-up is also provided with an annular seal
  • the sealing plane cooperates with the outlet end of the seal to form a third sealing area.
  • At least two convex ribs there are at least two convex ribs, and at least two convex ribs are arranged at intervals from the entrance end to the exit end.
  • the inner diameter of the sealing member gradually increases in the direction from the inlet end to the outlet end.
  • the outer diameter of the portion where the tube and the sealing member are sleeved gradually increases along the end close to the valve core toward the end away from the valve core.
  • the inlet end of the sealing member has an inlet end face that fits the valve core, and the inlet end face is provided with a wear-resistant lubricating coating.
  • the interference between the rib and the takeover is not less than 5%.
  • the interference between the inlet end of the seal and the valve core is not less than 5%.
  • An embodiment of the present disclosure also provides an electronic valve with a static seal structure, including a valve body, a valve cover, a flow control device and a power device;
  • the flow control device includes a valve core;
  • the power device includes a gear train, a control board and a motor;
  • the motor includes Housing, stator and rotor; characterized in that a sleeve is provided between the stator and the rotor, the open end of the sleeve is connected to the valve body, and the rotor, gear train and valve core are placed in a closed fluid medium environment.
  • a sealing ring is provided between the open port of the sleeve and the valve body.
  • the sleeve includes a connected cylinder and an annular flange.
  • One end of the cylinder is closed and the other end is an open end.
  • the flange is located at the open end and extends outward.
  • the flange has a ring shape extending circumferentially around the cylinder The groove and the sealing ring are arranged in the annular groove.
  • the sleeve is integrally formed with the valve body.
  • the sleeve and the valve body are fixedly connected by screws, snaps or rivets.
  • the outer surface of the valve body has a flat mounting portion, the flat mounting portion is provided with a through hole communicating with the inner cavity of the valve body and an annular mounting groove surrounding the through hole, and the end surface of the sleeve where the open end is attached to the flat mounting portion Closed, the sleeve communicates with the through hole, and the sealing ring is provided in the annular installation groove.
  • the housing is detachably connected to the valve body.
  • the output shaft of the motor extends into the valve body, and the output shaft is drivingly connected to the input gear of the gear train, and the output gear of the gear train is configured to drive the movement of the spool.
  • valve cover is welded to the valve body.
  • the beneficial effects of the embodiments of the present disclosure include, for example:
  • the seal ring may be unreliable after the friction erosion, and the fluid medium in the valve body will appear. Leakage phenomenon, which leads to the failure of the electronic valve.
  • the sealing effect of the electronic valve can be greatly enhanced, which is beneficial to increase the reliability of the product and prolong the service life. Since the present disclosure adopts an integrated valve body structure, there is no need to provide a sealing ring between the upper portion of the valve body and the lower portion of the valve body, which improves the overall sealing effect of the electronic valve without increasing the number of sealing rings.
  • the present disclosure provides a sealing structure of an electronic valve.
  • the sealing member forms multiple seals with the valve core and the connecting pipe through three sealing areas, which greatly improves the sealing performance of the product, thereby ensuring that the fluid medium in the flow channel will not leak.
  • the sleeve separates the rotor of the motor from the stator so that the rotor and the stator are located in two independent spaces.
  • the end of the rotor is equipped with a motor gear and cooperates with the gear train.
  • the output gear of the gear train is connected to the spool.
  • the rotor, gear train and spool are all placed in a fluid medium environment.
  • the internal chamber of the valve body is closed by the bonnet There is no relative movement between the sealing position of the bonnet and valve body, and the sealing position of the sleeve and valve body, so it is easy to achieve sealing. And the sealing effect is good; at the same time, there will be no wear at the sealing position, the components at the sealing position have a long service life and the sealing is effective for a long time.
  • FIG. 1 is a schematic view of the sealing structure of the electronic valve of the present disclosure
  • FIG. 2 is a schematic diagram of the valve body structure of the electronic valve of the present disclosure
  • FIG. 3 is a schematic view of the valve core structure of the electronic valve of the present disclosure.
  • FIG. 4 is a schematic structural view of an embodiment of a valve body with a rib of the electronic valve of the present disclosure.
  • FIG. 5 is a schematic diagram of the sealing structure portion of the electronic valve of the present disclosure.
  • FIG. 6 is a perspective view of the seal of the present disclosure.
  • FIG. 9 is a schematic diagram of the electronic valve used in the battery thermal management circuit.
  • FIG. 10 is a perspective view of the electronic valve of the present disclosure.
  • FIG. 11 is a schematic structural view of the electronic valve of the present disclosure.
  • FIG. 13 is a perspective view of the sleeve of the present disclosure.
  • FIG. 14 is a schematic structural view of the sleeve of the present disclosure.
  • 15 is a perspective view of the motor housing of the present disclosure.
  • 16 is a schematic structural view of the motor housing of the present disclosure.
  • 17 is a perspective view of the valve body of the present disclosure.
  • FIG. 18 is a perspective view of another perspective view of the valve body of the present disclosure.
  • valve cover of the present disclosure is a schematic structural view of the valve cover of the present disclosure.
  • FIG. 20 is a structural schematic diagram of a deformed structure of the electronic valve of the present disclosure.
  • Valve body 2- Valve core, 3- Lower end cover, 4- First seal ring, 5- Second seal ring, 6-gear, 7- First seal ring groove, 8- Second seal ring groove; 101 -Spool accommodating cavity, 102-lower part of valve body, 103-neck of valve body, 104-convex ring, 105-upper part of valve body, 106-bottom plane, 107-inner side, 108-top plane, 109-inner Peripheral surface, 110-reinforcement rib; 201-core body, 202-channel, 203-stem, 205-step surface, 206-first outer peripheral surface;
  • a double-sealed structure of an electronic valve provided by the present disclosure includes a valve body 1 and a valve core 2, the valve body 1 is integrally formed by injection molding, and a fluid-proof structure is provided between the valve body 1 and the valve core 2
  • the medium leaks into the first seal ring 4 and the second seal ring 5 of the upper power plant installation space (not shown).
  • the first seal ring 4 and the second seal ring 5 are spaced up and down along the axial direction of the spool, in other words, The first seal ring 4 and the second seal ring 5 are spaced along the axis of the valve core, and the first seal ring 4 is farther away from the bottom of the valve body 1 than the second seal ring 5.
  • the valve body 1 includes a valve body upper part 105, a valve body constriction neck 103 and a valve body lower part 102, a valve body upper part 105, a valve body constriction neck 103 and a valve body connected in sequence
  • the lower portion 102 collectively forms a spool accommodating chamber 101 configured to receive the spool 2.
  • the inner diameter of the upper portion 105 of the valve body and the inner diameter of the lower portion 102 of the valve body are both larger than the inner diameter of the neck portion 103 of the valve body.
  • the first seal ring 4 and the second seal ring 5 are disposed in the neck portion 103 of the valve body.
  • the upper portion 105 of the valve body, the neck portion 103 of the valve body and the lower portion 102 of the valve body are integrally formed.
  • the valve core 2 includes a connected core body 201 and a valve stem 203, a flow channel 202 is opened on the core body 201, and a step surface is provided at the junction of the valve stem 203 and the core body 201 205; the first sealing ring 4 and the second sealing ring 5 are provided at the cooperation portion of the valve body neck portion 103 and the valve stem 203 to seal the gap between the valve body neck portion 103 and the valve stem 203.
  • the spool 201 of the spool 2 is located in the lower portion 102 of the valve body, and the stem 203 of the spool 2 passes through the neck portion 103 of the valve body and extends into the upper portion 105 of the valve body
  • an annular space is formed between the valve stem 203 and the neck portion 103 of the valve body, the first seal ring 4 and the second seal ring 5 are sleeved outside the valve stem 203 and are located in the annular space, and the outer circumferential surface of the valve stem 203 is simultaneously Sealing contact with the first sealing ring 4 and the second sealing ring 5, the inner peripheral wall of the neck portion 103 of the valve body is in sealing contact with the first sealing ring 4 and the second sealing ring 5, thereby sealing the stem 203 and the valve body necking An annular space between the sections 103.
  • the valve stem 203 is provided with a gear 6.
  • the valve stem 203 rotates with the rotation of the gear 6.
  • the gear 6 is configured to drively cooperate with the upper power unit to transmit torque to the gear 6 and to the valve stem 203. , So that the valve stem 203 is rotated to realize the switching of the flow path.
  • the gear 6 is located in the upper portion 105 of the valve body, and the end surface of the gear 6 facing the lower portion 102 of the valve body is spaced from the second seal ring 5 to reduce the wear of the second seal ring 5, and the second seal ring 5 is away from the first seal ring
  • the movement of 4 is restricted by the gear 6 and the position of the second seal ring 5 is stable.
  • a convex ring 104 is provided on the inner peripheral wall of the neck portion 103 of the valve body.
  • the convex ring 104 is an annular structure and extends along the circumferential direction of the neck portion 103 of the valve body.
  • the convex ring 104 has a top plane 108 facing away from the valve body lower part 102 and a bottom plane 106 opposite to the top plane 108.
  • the top plane 108, the inner peripheral surface 109 of the valve body neck 103 and the first outer peripheral surface 206 of the valve stem 203 are common A ring-shaped first sealing ring groove 7 is formed; the bottom plane 106 of the convex ring 104, the inner peripheral surface 109 of the valve body neck portion 103, and the first outer peripheral surface 206 of the valve stem together form an annular second sealing ring groove 8.
  • the first seal ring 4 is located in the first seal ring groove 7
  • the second seal ring 5 is located in the second seal ring groove 8
  • the first seal ring 4 and the second seal ring 5 are located on both sides of the convex ring 104 in the axial direction.
  • each seal ring is determined to facilitate installation; and the movement of the first seal ring 4 toward the second seal ring 5 is blocked by the convex ring 104, and the movement of the second seal ring 5 toward the first seal ring 4 is blocked by the convex ring 104, and The movement of the second sealing ring 5 away from the first sealing ring 4 is blocked by the stepped surface 205.
  • the positions of the first sealing ring 4 and the second sealing ring 5 are not easy to move in the axial direction of the valve stem 203, and the position is more stable.
  • the inner peripheral surface 109 of the neck portion 103 of the valve body and the first outer peripheral surface 206 of the valve stem 203 serve as sealing surfaces, and form an interference fit with the first sealing ring 4 and the second sealing ring 5.
  • the first seal ring 4 and the bottom plane 106, the first seal ring 4 and the step surface 205, and the second seal ring 5 and the top plane 108 are all clearance fit.
  • the first sealing ring 4 on both sides of the valve stem 203 in the axial direction and the second sealing ring 5 on both sides of the valve stem 203 in the axial direction are not in contact with the valve body 1 and the valve
  • the contact of the rod 2 can reduce the wear of the first seal ring 4 and the second seal ring 5, which is beneficial to prolong the service life of the seal ring and reduce the cost.
  • first sealing ring 4 and the second sealing ring 5 may be an O-ring or an X-ring.
  • the structures of the first sealing ring 4 and the second sealing ring 5 may be set differently.
  • the first sealing ring 4 is an O-ring
  • the second sealing ring 5 is an X ring.
  • the structures of the first seal ring 4 and the second seal ring 5 may be the same.
  • the electronic valve further includes a lower end cover 3, and the lower portion 102 of the valve body is provided as an opening, and the lower end cover 3 is detachably connected to the lower portion 102 of the valve body to facilitate assembly of the spool 2 from the lower portion 102 of the valve body Into the valve body 1.
  • the present disclosure also provides an electronic valve sealing structure.
  • a reinforcing rib 110 is provided between the outer peripheral wall of the valve body neck portion 103 and the valve body lower portion 102, and the strength of the valve body 1 can be greatly improved without increasing the size and wall thickness of the valve body 1.
  • the structure and shape of the reinforcing rib 110 are not limited, and it is suitable to achieve the purpose of enhancing the structural strength of the valve body 1.
  • the reinforcement ribs 110 are arranged radially with the axis of the valve core 2 as the center, and the number is 2 to 4.
  • a plurality of reinforcement ribs 110 are arranged uniformly. In other words, the number of the reinforcement ribs 110 is plural, the plurality of reinforcement ribs 110 are evenly spaced around the axis of the valve core 2, and the plurality of reinforcement ribs 110 are arranged radially with the axis of the valve core 2 as the center.
  • the reinforcing rib 110 has a plate-like structure.
  • the sealing structure of an electronic valve provided by the present disclosure can greatly enhance the sealing effect of the electronic valve, which is beneficial to increase the reliability of the product and prolong the service life. Since the valve body of the sealing structure of the electronic valve of the present disclosure adopts an integrated structure, there is no need to provide a sealing ring between the upper portion 105 of the valve body and the lower portion 102 of the valve body, which improves the overall electronic valve without increasing the number of sealing rings Sealing effect.
  • valve body upper part 105 and the valve body lower part 102 are integrated into an integral mold-forming, which reduces the number of parts of the electronic valve product and reduces the valve body upper part 105 and The assembly process of the lower part 102 of the valve body also reduces the number of mold openings of the product parts, greatly shortens the product development cycle, and reduces the product development cost; and the integrated electronic valve, through the mold integral molding, the size of the product is easier to ensure At the same time, the weight of the entire product is reduced, which makes it easier to meet the OEM's requirements for light weight and integration.
  • the present disclosure provides a sealing structure of an electronic valve, including a valve body 20, a sealing member 10, a valve core 40 and a connecting pipe 30.
  • the sealing member 10 is first removed in FIG. 5, and only the assembly structure of the valve body 20, the connecting pipe 30 and the valve core 40 is shown.
  • the valve body 20 is provided with a valve core accommodating cavity 2010 and a connecting port 202 for taking over.
  • the spool 40 is placed in the spool accommodating cavity 2010.
  • the connecting pipe 30 is welded to the end of the connecting pipe port 202 on the valve body 20.
  • a flow channel (not shown in the figure) is opened in the valve core 40.
  • the fluid medium flows from the flow path of the spool 40 to the flow path 305 in the nozzle 30 in the direction indicated by the arrow 80.
  • the upper part of the spool 40 is configured to be drivingly connected with the gear train of the power device (not shown in the figure), and can rotate around its core shaft under the drive of the power device.
  • the fluid medium that enters the flow channel 305 of the connecting pipe 30 from the flow channel of the valve core 40 cannot return to the valve core accommodating chamber 2010 of the valve body 20. Therefore, it is necessary to provide the sealing member 10 between the spool 40 and the connecting pipe 30.
  • the takeover 30 has an insertion portion 303 configured to be inserted into the takeover connection port 202.
  • the insertion portion 303 may be a circular tube structure or a tapered tube structure with a certain taper on the outer circumferential surface.
  • the outer peripheral surface 304 of the insertion portion 303 serves as a sealing surface sealingly connected to the sealing member 10.
  • the insertion portion 303 is provided in a tapered tube structure, and the second outer peripheral surface 304 of the insertion portion 303 is a conical surface, which can The seal 10 is better introduced and close contact is formed.
  • the thickness of the insertion portion 303 may be the same or may gradually decrease. For example, the thickness of the insertion portion 303 gradually decreases in the axial direction from the end away from the spool 40 to the end closer to the spool 40.
  • annular flange 301 is further provided on the outer peripheral surface of the insertion portion 303, and the annular flange 301 protrudes from the outer peripheral surface of the insertion portion 303 in a direction perpendicular to the axis of the receiving pipe 30.
  • the annular flange 301 is located between the end surface 307 of the insertion portion 303 near the valve core 40 and the welding portion 306 of the connecting pipe 30 and the valve body 20.
  • the annular flat surface 302 of the annular flange 301 facing the valve core 40 is set as the other sealing surface of the connecting pipe 30 and the seal 10.
  • the seal 10 of the present disclosure has an inlet end 1050 connected to the spool 40 and an outlet end 1060 connected to the nozzle 30, the inlet end 1050 and the outlet end 1060 communicating, the inlet The end 1050 has an inlet end surface 1070.
  • the inlet end surface 1070 may be a tapered surface, which can increase the contact area; the outlet end 1060 has an outlet end surface 1080.
  • the portion of the spool 40 extends into the seal 10 from the inlet end 1050, so that the inlet end face 1070 of the seal 10 and the spool 40 have an interference fit, and the seal 10 contacts the inlet end face 1070 to form the first sealing area 50.
  • annular rib 1030 is provided on the inner wall of the seal 10.
  • the rib 1030 is located on the inner wall of the insertion channel 1090, and the rib 1030 is an annular structure, and the rib 1030 extends along the circumferential direction of the sealing member 10.
  • the present disclosure provides a sealing structure for an electronic valve. Multiple seals are formed between the sealing member 10 and the valve core 40 and the connecting pipe 30 through three sealing areas, which greatly improves the sealing performance of the product, thereby ensuring that the fluid medium in the flow channel will not leakage.
  • the number of the ribs 1030 is two or more, and the two or more ribs 1030 are arranged at intervals along the axial direction of the seal 10, in other words, two or more ribs
  • the ribs 1030 are arranged at intervals from the inlet end 1050 to the outlet end 1060 of the seal 10.
  • the gap between adjacent ribs 1030 is greater than 1 mm. While increasing the sealing performance of the electronic valve, it will not affect the elasticity of the sealing member 10, so that the torsion force of the valve core 40 is kept within a relatively small range.
  • the interference between the rib 1030 and the outer peripheral surface 304 of the insertion portion 303 is not less than 5%.
  • the inner wall 1040 of the seal 10 is adapted to the structure of the insertion portion 303 of the nozzle 30.
  • the inner wall 1040 of the sealing member 10 is tapered.
  • the inner diameter of the inner wall 1040 of the sealing member 10 gradually increases from the inlet end 1050 to the outlet end 1060, that is, the sealing member 10 provides the insertion portion 303
  • the inner diameter of the inserted outlet end 1060 is larger, which facilitates the insertion of the insertion portion 303 into the seal 10.
  • the second outer peripheral surface 304 of the insertion portion 303 is provided as a tapered surface, and the outer diameter of the end of the insertion portion 303 near the spool 40 is smaller than the outer diameter of the end away from the spool 40, making it easier to insert the insertion portion 303 into the seal Within 10.
  • the standard structure of the electronic valve is not limited, for example, a butterfly valve may be used.
  • the spool 40 can be any shape, including but not limited to being cylindrical or spherical.
  • the inlet end 1050 of the seal 10 has an inlet end surface 1070 adapted to the shape of the spool 40.
  • the inlet end surface 1070 may be a curved surface, a parabolic surface, a spherical surface, or a saddle surface.
  • the interference between the inlet end 1050 of the seal 10 and the spool 40 is not less than 5%.
  • the inlet end surface 1070 of the seal 10 is covered with a wear-resistant lubricating coating.
  • the wear-resistant lubricating coating can reduce the frictional force between the seal 10 and the valve core 40 and prolong the service life of the electronic valve. At the same time, the torque of the spool 40 is kept within a relatively small range.
  • the material of the wear-resistant lubricating coating is not specifically limited, and materials meeting the performance requirements may be used.
  • the wear-resistant lubricating coating uses ceramic materials, such as Al 2 O 3 ceramics.
  • the ceramic material has the advantages of high hardness and good wear resistance. Adding ceramic materials and solid lubricants such as TiO 2 and ZrO 2 to Al 2 O 3 is beneficial to improve its friction and wear performance.
  • the wear-resistant lubricating coating can also use self-lubricating materials, such as graphite and Mo 2 S.
  • self-lubricating materials such as graphite and Mo 2 S.
  • composite materials based on these two materials can also be used.
  • a reinforcing rib 1020 is further provided on the outer wall 1010 of the seal 10.
  • the reinforcing ribs 1020 can increase the reaction force of the sealing member 10 after being compressed, increase the resistance to pressure change of the sealing member 10, and prevent the problem of a decrease in sealing performance due to sealing gaps, thereby further increasing the reliability of the sealing.
  • the number of reinforcing ribs 1020 is one or more.
  • the reinforcing ribs 1020 may be arranged circumferentially, and a plurality of reinforcing ribs 1020 are arranged at intervals in the axial direction of the seal 10; the reinforcing ribs 1020 may also be arranged axially, and a plurality of reinforcing ribs 1020 are arranged at intervals in the circumferential direction of the seal 10 .
  • the number of the reinforcing ribs 1020 is multiple, and each day the reinforcing ribs 1020 have a long structure and extend along the axial direction of the seal 10, and the plurality of reinforcing ribs 1020 are evenly distributed along the circumferential direction of the seal 10.
  • the sealing member 10 is made of elastic material.
  • the seal 10 is made of rubber material.
  • the sealing member 10 is made of EPDM. The present disclosure enables the sealing member 10 to have high cost performance, excellent aging resistance, excellent chemical resistance, excellent insulation performance, and wide application temperature characteristics.
  • FIG. 9 is a schematic diagram of a liquid cooling and heating system of a new energy battery in the prior art.
  • the electronic valve of the present disclosure is configured to control the flow direction and the size of the fluid medium circuit in the new energy cooling system.
  • the present disclosure provides an electronic valve with a static seal structure, including a valve body 4, a valve cover 2, a flow control device 3 and a power device 1;
  • the flow control device 3 includes a spool 31, The spool 31 is movably connected to the valve body 4 to adjust the position of the spool 31 relative to the valve body 4, thereby adjusting the flow path and flow rate;
  • the power plant 1 includes a gear train 12, a control board 13 and a motor 11, the motor 11 and the control board 13 is electrically connected, and the motor 11 is drivingly connected with the gear train 12 to drive the gear train 12 to rotate to output torque;
  • the motor 11 includes a housing 111, a stator 112, and a rotor 115, and the stator 112 and the rotor 115 are both located in the housing 111.
  • a sleeve 113 is also provided between the stator 112 and the rotor 115.
  • the first open end 1139 of the sleeve 113 is connected to the valve body 4, and the connection position of the sleeve 113 and the valve body 4 is sealed.
  • the rotor 115, the gear train 12 and The valve cores 31 are all placed in a closed fluid medium environment.
  • the sleeve 113 separates the rotor 115 of the motor from the stator 112 and positions the rotor 115 and the stator 112 in two independent spaces.
  • the end of the rotor 115 is provided with a motor gear 116 and cooperates with the gear train 12, the output gear 121 of the gear train 12 is connected to the spool 31, so that the moving parts such as the rotor 115, the gear train 12 and the spool 31 are placed in the fluid medium
  • the internal chamber of the valve body 4 is closed by the valve cover 2, the sealing positions of the valve cover 2 and the valve body 4 and the sealing positions of the sleeve 113 and the valve body 4 have no relative movement, and it is easy to achieve the seal and the seal
  • the effect is good; at the same time, there will be no wear at the sealing position, the components at the sealing position have a long service life and the sealing is effective for a long time.
  • the present disclosure adopts a static seal structure. Since there is no relative movement of the parts in the sealing position and no friction loss, the seal is very reliable, and the fluid medium in the valve body 4 will not leak, which can greatly extend the Service life.
  • the sleeve 113 and the valve body 4 may be integrally formed; obviously, the sleeve 113 and the valve body 4 may also be a separate structure, that is, the valve body 4 and the sleeve 113 are independently processed and then assembled into one body. In the present disclosure, the sleeve 113 and the valve body 4 are separated, and the two are separately processed and formed, which is convenient for processing and manufacturing and saves processing costs.
  • a third sealing ring 7 is provided between the sleeve 113 and the valve body 4, so as to achieve a sealed connection between the sleeve 113 and the valve body 4.
  • the third sealing ring 7 may be an O-ring or an X-ring. Since there is no relative movement between the sleeve 113 and the valve body 4, the sealing position of the sleeve 113 and the valve body 4 is a static seal, which is not only easy to realize, but also the third seal ring 7 is not easy to be worn and will not shorten the third seal ring 7 service life.
  • connection manner of the sleeve 113 and the valve body 4 may be a fixed type or a detachable type.
  • the fixed connection can be welded.
  • Removable connections include but are not limited to screws, snaps or rivets.
  • the sleeve 113 and the valve body 4 are connected with screws.
  • the sleeve 113 includes a barrel 1131 and an annular flange 1132 connected to the barrel 1131.
  • One end of the barrel 1131 is closed and the other end is a first open end 1139.
  • the flange 1132 is located at The first open end 1139 extends outward, the flange 1132 has an annular groove 1137 extending around the circumference of the cylinder 1131, and the third seal ring 7 is provided in the annular groove 1137.
  • the flange 1132 is provided with a through hole for the screw to pass through, and the flange 1132 is pressed against the valve body 4 and screwed to the valve body 4 after passing through the through hole with the screw to achieve the valve body 4 and the sleeve 113 connection.
  • the closed end of the sleeve of the first open end 1139 third sealing ring 7 is provided with a rear bearing housing 1138 configured to connect with the rotor.
  • the outer surface of the valve body 4 has a planar mounting portion 401, and the planar mounting portion 401 is provided with a through hole communicating with the inner cavity of the valve body 4 and an annular mounting groove (not shown) surrounding the through hole, a sleeve
  • the end surface of the first opening end 1139 of 113 is attached to the plane mounting portion, the sleeve 113 is in communication with the through hole, and the third sealing ring 7 is provided in the annular mounting groove. That is, the position of the third sealing ring 7 is easy to determine and install, and the position of the third sealing ring 7 is not easy to move, and the installation quality is high; at the same time, the sealing area of the third sealing ring 7 can also be increased, thereby improving the sealing effect .
  • the annular mounting groove and the annular groove 1137 may be arranged directly to limit the third sealing ring 7 within the space formed by the annular mounting groove and the annular groove 1137.
  • the rear bearing seat 1138 is located in the sleeve 113, the sleeve 113 has an inner bottom wall directly opposite to the first open end 1139, the rear bearing seat 1138 is connected to the inner bottom wall of the sleeve 113, and the rear bearing seat 1138 Coaxial with the inner bottom wall.
  • the barrel 1131 and the flange 1132 are integrally formed, which is convenient for processing and manufacturing, and the sleeve 113 has high structural strength and is not easily damaged.
  • the flange 1132 of the sleeve 113 is further provided with a second connecting lug 1133.
  • the protruding direction of the second connecting lug 1133 is outward in the radial direction of the flange 1132, and the second connecting lug 1133 is opened
  • the second connecting lug 1133 and the first mounting hole 1134 opened thereon are configured to be connected to the valve body 4 and the motor housing 111 at the same time. It should be noted that the number of the second connection lugs 1133 is set according to need, and the number of the second connection lugs 1133 may be one or more.
  • the number of the second connection lugs 1133 is multiple, multiple second The connecting lugs 1133 are arranged at intervals along the circumferential direction of the flange.
  • the number of the second connecting lugs 1133 is two, and each second connecting lug 1133 is provided with a first mounting hole 1134.
  • the outer circumferential surface of the flange 1132 of the sleeve 113 is further provided with a tooth groove 1136, and the tooth groove 1136 and the tooth groove 1113 on the motor housing 111 are assembled by clamping in a tooth-groove manner.
  • the sleeve 113 is made of stainless steel and has a thickness of 0.2 mm to 0.5 mm.
  • the sleeve 113 is made of austenitic stainless steel. Austenitic stainless steel not only has comprehensive and good comprehensive properties, such as rust and corrosion resistance, but also has excellent plasticity and toughness.
  • the rotor 115 is made of plastic magnetic material.
  • the plastic magnetic material is a material obtained by mixing plastic powder with plastic as a binder and supplemented with appropriate additives.
  • Plastic magnetic materials have the characteristics of low density and high impact strength, and will not crack when used. They can be processed by general plastic processing methods, and can be processed into products with high dimensional accuracy, thin walls and complex shapes, and can be formed. Products with inserts. Using plastic magnetic materials to process the rotor can realize the miniaturization, light weight, precision and high performance of the motor.
  • the motor housing 111 of the motor 11 may be connected to the valve body 4 by screws, snaps, or rivets.
  • the motor housing 111 has a cylindrical housing 1111, and the second open end 1116 of the housing 1111 is provided with a buckle 1112 and a first connecting lug 1114, and a second mounting is provided on the first connecting lug 1114 ⁇ 1115 ⁇ Hole 1115.
  • the buckle 1112 is buckled with the second chucking groove 47 on the valve body.
  • the first connecting lug 1114 is aligned with the second connecting lug 1133 on the sleeve 113, and is fixed to the valve body 4 by screws.
  • This connection method not only realizes the double connection of the buckle and the screw, but also realizes the integral connection of the motor housing 111, the sleeve 113 and the valve body 4.
  • the second open end 1116 of the housing 1111 is also provided with a tooth groove 1113, which is assembled with the tooth groove 1136 on the sleeve 1113 in a tooth-groove manner.
  • the valve body 4 has an internal cavity and a connecting port 43.
  • the inner chamber includes an upper chamber 42 configured to place the gear train 12 and the extended end of the motor shaft, and a lower chamber 44 where the spool 31 is placed. Since the present disclosure is designed as a static sealing structure, the upper chamber 42 and the lower chamber 44 can be completely connected, and there is no need to seal between the valve core 31 and the upper chamber 42, reducing the sealing structure and saving the cost.
  • the takeover connection port 43 is provided in the lower chamber 44 and communicates with the lower chamber 44.
  • the number of take-over connection ports 43 is at least two. Optionally, there are four takeover connection ports 43, arranged in a "ten" shape. When less than four pipelines are used, it is sufficient to block off the excess connecting port 43 with a plug.
  • the valve body 4 can be made as a unified module, which can save the cost of mold opening.
  • a motor mounting seat 41 is also provided on the valve body 4, and the motor mounting seat 41 may be formed on the side wall 47 of the valve body 4 or may be provided on the side wall 47 of the valve body 4 to connect to the valve body 4 on.
  • the motor mounting base 41 is provided with a through hole 49 through which the rotor 115 passes.
  • the motor mounting base 41 is also provided with a second clamping slot 46 connected to the motor housing 111 and is snap-fitted with a snap 1112 provided on the motor housing 111.
  • the motor mounting seat 41 is also provided with a front bearing housing cavity 48 of the motor.
  • the valve body 4 is also provided with a first clamping groove 45 connected to the PCB box 22 and connected with the snap 25 on the PCB box 22.
  • valve cover 2 includes a valve body sealing plate 21, the valve body sealing plate 21 and the valve body 4 are welded to ensure the sealing of the environment in the liquid medium.
  • a PCB box 22 and an upper end cover 24 are arranged in sequence above the valve body sealing plate 21, the control board 13 is placed in the PCB box 22, and the upper end cover 24 is connected to the PCB box 22.
  • a junction box 23 is also provided on one side of the PCB box 22.
  • the PCB box 22 may be connected to the valve body sealing plate 21, and the connection mode of the two includes but is not limited to screw, snap, or rivet fixing.
  • the PCB box 22 is provided with a snap 25, which is snap-fitted with the first snap groove 45 on the valve body 4.
  • the electronic valve may include the above-mentioned double sealing structure of the electronic valve and the sealing structure of the electronic valve, in other words, the above-mentioned sealing member may be provided between the connecting pipe 5 and the connecting port 43 10 to achieve a sealed connection; the above-mentioned first seal ring 4 and second seal ring 5 may be provided between the core rod of the valve core 31 and the valve body 4 to achieve a sealed connection.
  • the front end of the motor shaft is fitted with a rear bearing 114; a sleeve 113 is fitted on the rotor 115, and the rear bearing 114 is placed in the rear bearing seat 1138 of the sleeve 113; a third is placed in the groove 1137 of the sleeve 113 Sealing ring 7;
  • the above assembly method is not unique, and can be adjusted according to the shape and connection mode of each part.
  • the present disclosure also provides an electronic valve with a static seal structure.
  • the motor mounting seat 41 is placed outside the valve body 4, and the sleeve 113, the motor mounting seat 41 and the valve body 4 are integrally formed.
  • the PCB box 22 is provided on the motor housing 111, and the lead wire of the motor 11 can be directly introduced into the PCB box 22 and connected to the control board 13 provided therein.
  • the present disclosure provides a double sealing structure for an electronic valve, a sealing structure for an electronic valve, and a statically sealed electronic valve, which has a good sealing effect and a long service life.

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

Abstract

一种电子阀的双密封结构、一种电子阀的密封结构和一种静密封结构的电子阀，电子阀的双密封结构包括阀体（1）和阀芯（2），阀体（1）通过注塑一体成型，阀体（1）和阀芯（2）之间设有防止冷却液泄漏到上部动力装置安装空间的第一密封圈（4）和第二密封圈（5），第一密封圈（4）和第二密封圈（5）沿阀芯（2）轴向上下间隔设置。

Description

一种电子阀的双密封结构、一种电子阀的密封结构和一种静密封结构的电子阀
相关申请的交叉引用
本公开要求于2019年01月08日提交中国专利局的申请号为201910016511.5、名称为“一种电子阀的双密封结构”的中国专利申请的优先权；以及于2019年01月08日提交中国专利局的申请号为201920027853.2、名称为“一种电子阀的密封结构”的中国专利申请的优先权；其全部内容通过引用结合在本公开中。
技术领域
本公开涉及新能源汽车技术领域，尤其涉及新能源汽车热管理系统中所用的电子阀产品领域，具体地说是一种电子阀的双密封结构、一种电子阀的密封结构和一种静密封结构的电子阀。
背景技术
电子阀产品配置成新能源冷却系统中，控制流体介质回路的流向和流量大小。
在研究中发现：
电子阀经过长期使用后，阀芯与阀体对密封面摩擦侵蚀比较明显，密封件与阀芯以及密封件与阀体的密封位置处易出现密封不可靠的情况，阀体内的流体介质出现外漏现象，从而导致电子阀失效。
发明内容
本公开的目的包括，例如，提供一种电子阀的双密封结构，以解决现有技术存在的上述技术问题中的至少一个技术问题。
本公开的目的还包括，例如，提供一种电子阀的密封结构，以解决现有技术存在的上述技术问题中的至少一个技术问题。
本公开的目的还包括，例如，提供一种静密封结构的电子阀，以解决现有技术存在的上述技术问题中的至少一个技术问题。
本公开提供的实施例是这样实现的：
本公开提供了一种电子阀的双密封结构，包括阀体和阀芯，阀体通过注塑一体成型，阀体和阀芯之间设有防止流体介质泄漏到上部动力装置安装空间的第一密封圈和第二密封圈，第一密封圈和第二密封圈沿阀芯轴向上下间隔设置。
可选的，阀体包括依次连接的阀体上部、阀体缩颈部和阀体下部，第一密封圈和第二密封圈设置在阀体缩颈部。
可选的，阀体的内周面上设有凸环，凸环背离阀体下部的顶平面、阀体的内周面和阀杆的外周面共同构成环形的第一密封圈槽，第一密封圈设置于第一密封槽内；凸环靠近阀体下部的底平面、阀体缩颈部的内周面和阀杆的外周面共同构成第二密封圈槽，第二密封圈设置于第二密封圈槽内。
可选的，第一密封圈与顶平面具有间隔，和/或第二密封圈与底平面具有 间隔。
可选的，阀芯包括芯体和阀杆，芯体上开设有流道，阀杆与芯体的交界处设有凸出于阀杆的外周面的台阶面；第一密封圈和第二密封圈套设在阀杆外。
本公开提供了一种电子阀的密封结构，包括密封件、阀芯和接管，密封件具有与阀芯连接的入口端和与接管连接的出口端，其特征在于，密封件的入口端与阀芯过盈配合，形成第一密封区域；密封件的内壁设有环状的凸筋，凸筋与接管一端的外周面过盈配合，形成第二密封区域；接管一端还设有一个环形的密封平面，该密封平面与密封件的出口端配合，形成第三密封区域。
可选的，凸筋为至少两条，至少两条凸筋沿入口端向出口端的方向间隔排布。
可选的，密封件的内径沿入口端向出口端的方向逐渐增大，对应的，接管与密封件套接的部分的外径沿靠近阀芯的一端向远离阀芯的一端逐渐增大。
可选的，密封件的入口端具有与阀芯相贴合的入口端面，入口端面设置有耐磨润滑涂层。
可选的，凸筋与接管配合的过盈量不低于5％。
可选的，密封件的入口端与阀芯配合的过盈量不低于5％。
本公开实施例还提供了一种静密封结构的电子阀，包括阀体、阀盖、流量控制装置和动力装置；流量控制装置包括阀芯；动力装置包括齿轮系、控制板和电机；电机包括外壳、定子和转子；其特征在于，在定子和转子之间设有套筒，套筒的开口端与阀体连接，并将转子、齿轮系和阀芯置于密闭的流体介质环境中。
可选的，套筒的开端口与阀体之间设置有密封圈。
可选的，套筒包括相连的筒体以及环形的凸缘，筒体的一端封闭另一端为开口端，凸缘位于开口端且向外延伸，凸缘具有围绕筒体的周向延伸的环形凹槽，密封圈设于环形凹槽内。
可选的，套筒与阀体一体成型。
可选的，套筒与阀体采用螺钉、卡扣或铆钉固定连接。
可选的，阀体的外表面具有平面安装部，平面安装部设置有与阀体的内腔连通的通孔以及围绕通孔的环形安装槽，套筒的开口端所在端面与平面安装部贴合，套筒与通孔连通，密封圈设于环形安装槽内。
可选的，外壳与阀体可拆卸地连接。
可选的，电机的输出轴伸入阀体内，且输出轴与齿轮系的输入齿轮传动连接，齿轮系的输出齿轮配置成驱动阀芯运动。
可选的，阀盖与阀体焊接。
与现有的技术相比，本公开实施例的有益效果包括，例如：
综上所述，电子阀经过长期使用后，特别是阀芯、阀体对密封面摩擦侵蚀比较明显，密封圈在受到摩擦侵蚀后就有可能出现密封不可靠，阀体内的流体介质就会出现外漏现象，从而导致电子阀失效。采用本公开的双密封结构后， 可大大增强电子阀的密封效果，有利于增加产品的可靠性并可延长使用寿命。由于本公开采用一体式阀体结构，因而在阀体上部和阀体下部之间不需要设置密封圈，在不增加密封圈数量的情况下提高电子阀的整体密封效果。
本公开提供的一种电子阀的密封结构，密封件通过三个密封区域与阀芯和接管形成多重密封，大大提高了产品的密封性能，从而确保流道内的流体介质不会泄漏。
本公开提供的静密封结构的电子阀，套筒将电机的转子与定子分隔后使转子和定子位于相互独立的两个空间中。转子端部设有电机齿轮，并与齿轮系配合，齿轮系的输出齿轮与阀芯连接，转子、齿轮系和阀芯均置于流体介质环境中，通过阀盖将阀体的内部腔室封闭，阀盖和阀体的密封位置以及套筒和阀体的密封位置均没有相对运动，很容易实现密封。且密封效果好；同时，密封位置处不会产生磨损，密封位置处的部件使用寿命长，密封时效久。
附图说明
下面结合附图和实施例对本公开作进一步说明。
图1是本公开电子阀的密封结构示意图；
图2是本公开电子阀的阀体结构示意图；
图3是本公开电子阀的阀芯结构示意图；
图4是本公开电子阀的阀体带加强筋实施方式的结构示意图。
图5是本公开的电子阀的密封结构部分的示意图；
图6是本公开密封件的立体图；
图7是本公开密封件的结构示意图；
图8是本公开密封结构的示意图；
图9是电子阀使用在电池热管理回路的原理图；
图10是本公开电子阀的立体图；
图11是本公开电子阀的结构示意图；
图12是本公开电子阀的爆炸图；
图13是本公开套筒的立体图；
图14是本公开套筒的结构示意图；
图15是本公开电机外壳的立体图；
图16是本公开电机外壳的结构示意图；
图17是本公开阀体的立体图；
图18是本公开阀体另一个视角的立体图；
图19是本公开阀盖的结构示意图；
图20是本公开电子阀的变形结构的结构示意图。
图中：
1-阀体，2-阀芯，3-下端盖，4-第一密封圈，5-第二密封圈，6-齿轮，7-第一密封圈槽，8-第二密封圈槽；101-阀芯容置腔，102-阀体下部，103-阀体缩颈部，104-凸环，105-阀体上部，106-底平面，107-内侧面，108-顶平面， 109-内周面，110-加强筋；201-芯体，202-流道，203-阀杆，205-台阶面，206-第一外周面；
10-密封件，20-阀体，30-接管，40-阀芯，50-第一密封区域，60-第二密封区域，70-第三密封区域，80-箭头；1010-外壁，1020-加强筋，1030-凸筋，1040-内壁，1050-入口端，1060-出口端，1070-入口端面，1080-出口端面，1090-插接通道；2010-阀芯容置腔，2020-接管连接端口；3010-环形凸缘，3020-环形密封平面，3030-插入部，3040-第二外周面，3050-流道，3060-焊接部位；
001-动力装置，002-阀盖，003-流量控制装置，004-阀体，005-接管，007-第三密封圈，11-电机，12-齿轮系，13-控制板，111-电机外壳，112-定子，113-套筒，114-后轴承，115-转子，116-电机齿轮，117-前轴承，118-前轴承座，1111-壳体，1112-卡扣，1113-连接齿槽，1114-第一连接凸耳，1115-第二安装孔，1116-开口端，1131-筒体，1132-凸缘，1133-第二连接凸耳，1134-第一安装孔，1135-台阶，1136-连接齿槽，1137-环形凹槽，1138-后轴承座，1139-第一开口端，121-输出齿轮，21-阀体封板，22-PCB箱，23-接线盒，24-上端盖，25-卡扣，31-阀芯，41-电机安装座，42-上部腔室，43-接管连接端口，44-下部腔室，45-第一卡槽，46-第二卡槽，47-侧壁，48-前轴承座腔，49-穿孔，401-平面安装部。
具体实施方式
在本公开的描述中，“上”、“下、“左”、“右”、“顶”和“底”等指示的方向或位置为基于附图所示的方向或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
参照图1～图3，本公开提供的一种电子阀的双密封结构，包括阀体1和阀芯2，阀体1通过注塑一体成型，阀体1和阀芯2之间设有防止流体介质泄漏到上部动力装置安装空间(图未示)的第一密封圈4和第二密封圈5，第一密封圈4和第二密封圈5沿阀芯轴向上下间隔设置，换句话说，第一密封圈4和第二密封圈5沿阀芯的轴心间隔设置，且第一密封圈4相较于第二密封圈5更加远离阀体1的底部。
可选的，请参阅图1和图2，阀体1包括依次连接的阀体上部105、阀体缩颈部103和阀体下部102，阀体上部105、阀体缩颈部103和阀体下部102共同形成配置成容纳阀芯2的阀芯容置腔101。阀体上部105的内径以及阀体下部102的内径均大于阀体缩颈部103的内径，第一密封圈4和第二密封圈5设置在所述阀体缩颈部103内。
可选的，阀体上部105、阀体缩颈部103和阀体下部102一体成型。
可选的，请参阅图1和图3，阀芯2包括相连的芯体201和阀杆203，芯体201上开设有流道202，阀杆203与芯体201的交界处设有台阶面205；第一密封圈4和第二密封圈5设置在阀体缩颈部103与阀杆203的配合处，以密 封阀体缩颈部103和阀杆203之间的间隙。换句话说，阀芯2与阀体1配合后，阀芯2的芯体201位于阀体下部102内，阀芯2的阀杆203穿过阀体缩颈部103并伸入阀体上部105中，阀杆203与阀体缩颈部103之间形成环形空间，第一密封圈4和第二密封圈5均套设在阀杆203外且位于环形空间中，阀杆203的外周面同时与第一密封圈4和第二密封圈5密封接触，阀体缩颈部103的内周壁同时与第一密封圈4和第二密封圈5密封接触，从而密封阀杆203与阀体缩颈部103之间环形空间。
可选的，阀杆203外套设有齿轮6，阀杆203随齿轮6的转动而转动，齿轮6配置成与上部动力动力装置传动配合，以将扭矩传递至齿轮6，并传递至阀杆203，从而使阀杆203转动，实现流道的切换。同时，齿轮6位于阀体上部105内，齿轮6朝向阀体下部102的端面与第二密封圈5具有间隔，以降低第二密封圈5的磨损，且第二密封圈5远离第一密封圈4的运动被齿轮6限制，第二密封圈5的位置稳定。
可选的，阀体缩颈部103的内周壁上设有凸环104，凸环104为环形结构，且沿阀体缩颈部103的周向延伸。凸环104具有背离阀体下部102的顶平面108和与顶平面108相对的底平面106，顶平面108、阀体缩颈部103的内周面109和阀杆203的第一外周面206共同构成环形的第一密封圈槽7；凸环104的底平面106、阀体缩颈部103的内周面109、阀杆的第一外周面206共同构成环形的第二密封圈槽8。第一密封圈4位于第一密封圈槽7内，第二密封圈5位于第二密封圈槽8内，第一密封圈4和第二密封圈5位于凸环104轴向的两侧，两个密封圈的位置确定，便于安装；且第一密封圈4朝向第二密封圈5的运动被凸环104阻挡，第二密封圈5朝向第一密封圈4的运动被凸环104阻挡，以及第二密封圈5背离第一密封圈4的运动被台阶面205阻挡，第一密封圈4和第二密封圈5的位置不易沿阀杆203的轴向运动，位置更加稳定。
可选的，阀体缩颈部103的内周面109和阀杆203的第一外周面206作为密封面，与第一密封圈4和第二密封圈5形成过盈配合。第一密封圈4与底平面106、第一密封圈4与台阶面205以及第二密封圈5与顶平面108均为间隙配合。由于阀芯2与阀体1可转动地配合，第一密封圈4沿阀杆203轴向的两侧以及第二密封圈5沿阀杆203轴向的两侧均未与阀体1以及阀杆2接触，可减少第一密封圈4和第二密封圈5的磨损，有利于延长密封圈的使用寿命，降低成本。
可选的，第一密封圈4和第二密封圈5二者中的至少一个可以为O型圈或X型圈。显然，第一密封圈4和第二密封圈5的结构可以设置为不同，例如，第一密封圈4为O形圈，第二密封圈5为X圈。此外，第一密封圈4和第二密封圈5的结构可以设置相同。
本公开中，可选的，电子阀还包括下端盖3，阀体下部102的设置为敞口，下端盖3与阀体下部102可拆卸地连接，便于将阀芯2从阀体下部102装配至阀体1内。
参照图4，本公开也提供了一种电子阀的密封结构。本公开中，阀体缩颈 部103上的外周壁与阀体下部102之间设有加强筋110，在不增加阀体1尺寸和壁厚的情况下可大大提高阀体1的强度。
可选的，加强筋110的结构和形状不限，以其能够达到增强阀体1的结构强度的目的为宜。例如，加强筋110以阀芯2的轴线为中心呈径向设置，数量以2～4个，可选的，多个加强筋110呈均布设置。换句话说，加强筋110的数量为多个，多个加强筋110围绕阀芯2的轴线均匀间隔排布，多个加强筋110以阀芯2的轴线为中心呈放射状排布。
可选的，加强筋110为板状结构。
本公开提供的一种电子阀的密封结构，可大大增强电子阀的密封效果，有利于增加产品的可靠性并可延长使用寿命。由于本公开的电子阀的密封结构的阀体采用一体式结构，因而在阀体上部105和阀体下部102之间不需要设置密封圈，在不增加密封圈数量的情况下提高电子阀的整体密封效果。
同时，本公开提供的电子阀的密封结构的结构设计合理，把阀体上部105和阀体下部102集成为一体开模成型，减少了电子阀产品的零部件数量，减少了阀体上部105和阀体下部102装配的工艺，同时减少了产品零件的开模数量，大大缩短了产品的开发周期，降低了产品的研发费用；而且一体式电子阀，通过模具一体成型，产品的尺寸更加容易保证，同时整个产品的重量降低，更加容易满足主机厂对于的轻量化和集成化的目标要求。
请参照图5-图8，本公开提供了一种电子阀的密封结构，包括阀体20、密封件10、阀芯40和接管30。为了更好地说明各部分的结构特征，图5中先将密封件10移除，仅示出阀体20、接管30和阀芯40的装配结构。其中，阀体20内设有阀芯容置腔2010以及接管连接端口202。阀芯40置于阀芯容置腔2010内。接管30与阀体20上的接管连接端口202的端部焊接。
可选的，阀芯40内开设有流道(图中未显示)。流体介质按箭头80所示方向从阀芯40的流道流向接管30内的流道305。
阀芯40的上部配置成与动力装置(图中未示出)的齿轮系传动连接，并在动力装置的带动下可绕其芯轴转动。
当阀芯40的流道与接管30内的流道305不导通时，电子阀处于关闭状态。
当阀芯40在动力装置的驱动下沿预设方向转过一定角度后，阀芯40内的流道与接管30内的流道305部分开始导通。沿预设方向继续转动阀芯40，阀芯40的流道与接管30内的流道305导通的面积逐渐增大，与接管30连通的下游的流量也随之增大。
沿预设方向继续转动阀芯40，当阀芯40的流道的轴线与接管30内的流道305的轴线处于同一直线时，两者的导通面积最大，此时电子阀处于最大流量状态。
也即，通过控制阀芯40的转动角度，可以实现电子阀的切换和流量控制。
为了达到精确控制流量的目的，从阀芯40的流道内进入到接管30的流道305内的流体介质不能回流到阀体20的阀芯容置腔2010内。因此，需要在阀 芯40和接管30之间设置密封件10。
可选的，接管30具备配置成插入接管连接端口202内的插入部303。插入部303可以是圆管结构，也可以是外周面带一定锥度的锥管结构。本公开中，插入部303的外周面304作为与密封件10密封连接的一个密封面，可选的，插入部303设置为锥管结构，插入部303的第二外周面304为圆锥面，能够更好地导入密封件10并形成紧密接触。插入部303的厚度可以相同，也可以逐渐变小。例如，插入部303的厚度沿其轴线方向从远离阀芯40的一端向靠近阀芯40的一端逐渐减小。
可选的，插入部303的外周面上还设有环形凸缘301，环形凸缘301沿垂直于接管30的轴线的方向凸出于插入部303的外周面。该环形凸缘301位于插入部303靠近阀芯40的端面307和接管30与阀体20的焊接部位306之间。环形凸缘301朝向阀芯40的环形平面302设为接管30与密封件10的另一个密封面。
参照图6、图7和图8，可选的，本公开的密封件10具有与阀芯40连接的入口端1050以及与接管30连接的出口端1060，入口端1050和出口端1060连通，入口端1050具有入口端面1070，入口端面1070可以是锥面，能够增大接触面积；出口端1060具有出口端面1080。入口端1050和出口端1060之间具有配置成供接管30插入的插接通道1090。阀芯40的部分从入口端1050伸入密封件10内，以使密封件10的入口端面1070与阀芯40过盈配合，密封件10与入口端面1070接触形成第一密封区域50。
可选的，密封件10的内壁设有环状的凸筋1030。可选的，凸筋1030位于插接通道1090的内壁上，且凸筋1030为环形结构，凸筋1030沿密封件10的周向延伸。插入部303插入密封件10后，凸筋1030与插入部303的第二外周面304过盈配合，形成第二密封区域60；密封件10的出口端面1080与接管30的环形密封平面302配合，形成第三密封区域70。
本公开提供的一种电子阀的密封结构，密封件10与阀芯40和接管30之间通过三个密封区域形成多重密封，大大提高了产品的密封性能，从而确保流道内的流体介质不会泄漏。
可选的，凸筋1030的数量为两条或两条以上，两条或两条以上的凸筋1030沿密封件10的轴向间隔排布，换句话说，两条或两条以上的凸筋1030沿密封件10的入口端1050向出口端1060的方向间隔排布。可选的，相邻凸筋1030的间隙大于1mm。在增加电子阀的密封性能的同时，不会影响密封件10的弹性，使阀芯40的扭力保持在较小的范围内。凸筋1030与插入部303的外周面304配合的过盈量不低于5％。
可选的，密封件10的内壁1040与接管30的插入部303的结构相适配。可选的，密封件10的内壁1040呈锥形，换句话说，密封件10的内壁1040的内径沿入口端1050向出口端1060的方向逐渐增大，也即，密封件10供插入部303插入的出口端1060的内径更大，便于引导插入部303插入到密封件10内。对应的，插入部303的第二外周面304设置为锥面，插入部303靠近 阀芯40的一端的外径小于远离阀芯40的一端的外径，更加便于将插入部303插入到密封件10内。
可选的，电子阀的制式结构不作限定，例如可以采用蝶阀。阀芯40可以是任何形状，包括但不限于是圆柱形或球形。密封件10的入口端1050具有与阀芯40的形状相适配的入口端面1070，例如，入口端面1070可以是弧形面、抛物面、球面或马鞍面等。密封件10的入口端1050与阀芯40配合的过盈量不低于5％。
可选的，密封件10的入口端面1070上覆有耐磨润滑涂层。该耐磨润滑涂层能够减小密封件10与阀芯40之间的摩擦力，延长电子阀的使用寿命。同时使阀芯40的扭力保持在一个较小的范围内。
本公开中，耐磨润滑涂层的材料不作具体限定，采用符合性能要求的材料即可。可选的，耐磨润滑涂层采用陶瓷材料，如Al 2O 3陶瓷。该陶瓷材料具有硬度高，耐磨性好的优点。在Al 2O 3中加入TiO 2和ZrO 2等陶瓷材料和固体润滑剂有利于改善其摩擦磨损性能。
可选的，耐磨润滑涂层也可以采用自润滑材料，如石墨和Mo 2S等自润滑材料。为了更好发挥石墨和Mo 2S的摩擦磨损性能，也可以采用以这两种材料为基础的复合材料。
可选的，密封件10的外壁1010上还设有加强筋1020。加强筋1020可加大密封件10被压缩后的反作用力，增加了密封件10的抗压变能力，防止出现密封间隙而导致密封性能下降的问题，从而进一步增加了密封的可靠性。
可选的，加强筋1020的数量为一条或者多条。加强筋1020可以呈周向设置，多条加强筋1020沿密封件10的轴向间隔排布；加强筋1020也可以呈轴向设置，多条加强筋1020沿密封件10的周向间隔排布。在本公开中，可选的，加强筋1020的数量为多条，每天加强筋1020为长条结构且沿密封件10的轴向延伸，多条加强筋1020沿密封件10的周向均布。
可选的，密封件10采用弹性材料制成。可选的，密封件10采用橡胶材料制成。或者，密封件10采用EPDM制成，本公开使密封件10具有性价比高、优异的耐老化特性、优异的耐化学药品特性、优良的绝缘性能和适用温度范围广的特性。
本公开还提供了一种静密封结构的电子阀，图9所示是现有技术的新能源电池液冷和加热系统的原理图。本公开的电子阀配置成控制新能源冷却系统中的流体介质回路的流向和流量大小。
参照图10、图11和图12，本公开提供了一种静密封结构的电子阀,包括阀体4、阀盖2、流量控制装置3和动力装置1；流量控制装置3包括阀芯31，阀芯31与阀体4活动连接，以调节阀芯31相对于阀体4的位置，进而调节流道和流量；动力装置1包括齿轮系12、控制板13和电机11，电机11与控制板13电连接，电机11与齿轮系12传动连接，以驱动齿轮系12转动从而输出扭矩；电机11包括外壳111、定子112和转子115，定子112和转子115均位 于外壳111中。在定子112和转子115之间还设有套筒113，套筒113的第一开口端1139与阀体4连接，且套筒113和阀体4连接位置处密封，转子115、齿轮系12和阀芯31均置于密闭的流体介质环境中。
本公开提供的电子阀，套筒113将电机的转子115与定子112分隔且使转子115和定子112位于两个独立的空间内。转子115的端部设有电机齿轮116，并与齿轮系12配合，齿轮系12的输出齿轮121与阀芯31连接，使得转子115、齿轮系12和阀芯31等运动部件均置于流体介质环境中，通过阀盖2将阀体4的内部腔室封闭，阀盖2和阀体4的密封位置以及套筒113和阀体4的密封位置均没有相对运动，很容易实现密封，且密封效果好；同时，密封位置处不会产生磨损，密封位置处的部件使用寿命长，密封时效久。
换句话说，本公开采用静密封结构，由于密封位置的部件不存在相对运动，没有摩擦损耗，因此密封非常可靠，阀体4内的流体介质不会出现外漏现象，可大大延长电子阀的使用寿命。
套筒113与阀体4可以是一体成型的；显然，套筒113和阀体4也可以是分离结构，即阀体4和套筒113独立加工后再组装为一体。在本公开中，套筒113与阀体4是分离的，二者分别独立加工成型，加工制造方便，节省加工成本。在装配套筒113与阀体4时，在套筒113与阀体4之间设置一个第三密封圈7，从而实现套筒113与阀体4之间的密封连接。可选的，第三密封圈7可以是O型圈或X型圈。由于套筒113和阀体4之间没有相对运动，套筒113和阀体4的密封位置处为静密封，不仅容易实现，而且第三密封圈7不易被磨损，不会缩短第三密封圈7的使用寿命。
本公开中，可选的，套筒113与阀体4的连接方式可以为固定式或可脱卸式。固定式连接可以采用焊接。可脱卸式连接包括但不限于螺钉、卡扣或铆钉固定。在本公开中，套筒113与阀体4采用螺钉连接。
结合图13和图14，可选的，套筒113包括筒体1131以及与筒体1131连接的环形的凸缘1132，筒体1131的一端封闭另一端为第一开口端1139，凸缘1132位于第一开口端1139且向外延伸，凸缘1132具有围绕筒体1131的周向延伸的环形凹槽1137，第三密封圈7设于环形凹槽1137内。凸缘1132上设置有供螺钉穿过的通孔，将凸缘1132与阀体4抵持并利用螺钉穿过通孔后螺接在阀体4上，以实现阀体4与套筒113的连接。第一开口端1139第三密封圈7套筒的封闭端设有配置成与转子连接的后轴承座1138。
可选的，阀体4的外表面具有平面安装部401，平面安装部401上设置有与阀体4的内腔连通的通孔以及围绕通孔的环形安装槽(图未示)，套筒113的第一开口端1139所在端面与平面安装部贴合，套筒113与通孔连通，第三密封圈7设于环形安装槽内。也即，第三密封圈7的位置便于确定，便于安装，且第三密封圈7的位置不易移动，安装质量高；同时，还可以增大第三密封圈7的密封面积，进而提高密封效果。可选的，环形安装槽和环形凹槽1137可以正对设置，以将第三密封圈7限位于环形安装槽和环形凹槽1137形成的空间内。
可选的，后轴承座1138位于套筒113内，套筒113具有与第一开口端1139正对的内底壁，后轴承座1138与套筒113的内底壁连接，且后轴承座1138与内底壁同轴。
可选的，筒体1131与凸缘1132一体成型，便于加工制造，套筒113的结构强度高，不易损坏。且筒体1131与凸缘1132之间没有连接缝隙，套筒113与阀体4共同限定出的密封腔室的密封性更好。
可选的，套筒113的凸缘1132上还设有第二连接凸耳1133，第二连接凸耳1133的凸出方向沿凸缘1132的径向向外，第二连接凸耳1133上开设有供螺钉或者螺栓穿过的第一安装孔1134。第二连接凸耳1133及其上开设的第一安装孔1134配置成同时与阀体4和电机外壳111进行连接。需要说明的是，第二连接凸耳1133的数量按需设置，第二连接凸耳1133的数量可以是一个或者多个，当第二连接凸耳1133的数量为多个时，多个第二连接凸耳1133沿凸缘的周向间隔排布。本公开中，可选的，第二连接凸耳1133的数量为两个，每个第二连接凸耳1133上设置有一个第一安装孔1134。
可选的，套筒113的凸缘1132的外周面上还设有齿槽1136，该齿槽1136与电机外壳111上的齿槽1113通过齿-槽配合的方式进行卡接装配。
可选的，套筒113采用不锈钢材质，厚度为0.2mm～0.5mm。可选的，套筒113采用奥氏体不锈钢材质。奥氏体不锈钢不仅具有全面的和良好的综合性能，如防锈和耐腐蚀性能，又具有极佳的可塑性和韧性。
可选的，转子115采用塑磁材料。塑磁材料是以塑料为粘结剂，并辅以适当助剂，与磁粉混合后得到的材料。塑磁材料具有密度小和耐冲击强度大的特点，使用时不会碎裂，可采用一般塑料通用的加工方法进行加工，可加工成尺寸精度高、薄壁和复杂形状的制品，以及可成型带嵌件制品。采用塑磁材料加工转子，可实现电机小型化、轻量化、精密化和高性能化。
结合图15和图16，电机11的电机外壳111可以通过螺钉、卡扣或铆钉连接到阀体4。在公开中，电机外壳111具有圆筒状的壳体1111，壳体1111的第二开口端1116设有卡扣1112和第一连接凸耳1114，第一连接凸耳1114上开设有第二安装孔1115。卡扣1112与阀体上的第二卡槽47卡扣连接。第一连接凸耳1114与套筒113上的第二连接凸耳1133对齐，通过螺钉与阀体4固定。这种连接方式，不仅实现了卡扣和螺钉的双重连接，同时实现了电机外壳111、套筒113和阀体4的整体连接。壳体1111的第二开口端1116还设有齿槽1113，与套筒1113上的齿槽1136通过齿-槽配合的方式进行装配。
结合图17和图18，阀体4具有内部腔室和接管连接端口43。内部腔室包括配置成放置齿轮系12和电机轴伸出端的上部腔室42以及放置阀芯31的下部腔室44。由于本公开设计为静密封结构，上部腔室42和下部腔室44可以完全导通，阀芯31与上部腔室42之间无须密封，减少了密封结构，节省了成本。接管连接端口43设置在下部腔室44，并与下部腔室44导通。接管连接端口43的数量至少为两个。可选的，接管连接端口43为四个，呈“十”字形排布。当使用的管路少于四个时，采用堵头将多余的接管连接端口43封堵即 可。阀体4可制作为统一的模块，可节约开模成本。
可选的，阀体4上还设有电机安装座41，电机安装座41可以在阀体4的侧壁47上形成，也可以设置在阀体4的侧壁47上以连接到阀体4上。电机安装座41上开设有供转子115穿过的穿孔49。电机安装座41上还设有连接电机外壳111的第二卡槽46，并与电机外壳111上设置的卡扣1112卡接配合。电机安装座41上还设有电机的前轴承座腔48。
阀体4上还设有与PCB箱22连接的第一卡槽45，并与PCB箱22上的卡扣25配合连接。
结合图19，阀盖2包括阀体封板21，阀体封板21与阀体4焊接，以确保液体介质内环境的密封。
可选的，阀体封板21上方还设有依次排列的PCB箱22和上端盖24，控制板13置于PCB箱22内，上端盖24与PCB箱22连接。PCB箱22的一侧还设有接线盒23。
可选的，PCB箱22可以与阀体封板21连接，二者的连接方式包括但不限于是螺钉、卡扣或铆钉固定。在公开中，PCB箱22上设有卡扣25，与阀体4上的第一卡槽45卡接配合。
本公开中，可选的，电子阀可以包括上述提到的电子阀的双密封结构以及电子阀的密封结构，换句话说，接管5与接管连接端口43之间可以设置上述提到的密封件10以实现密封连接；阀芯31的芯杆与阀体4之间可以设置上述提到的第一密封圈4和第二密封圈5以实现密封连接。
本公开采用以下方式进行装配：
1、将阀芯31装入阀体4的下部腔室44中；
2、将齿轮系12装入阀体4的上部腔室42中，并使齿轮系12的输出齿轮121套设在阀芯31外以使二者配合连接，阀芯31随输出齿轮121的转动而转动。
3、将电机11的前轴承座118装入电机安装座41的前轴承座腔48内，在电机11的转子115的转轴上套装前轴承117，将电机11的转轴从外侧穿过电机安装座41上的穿孔49后，在转轴的前端装上电机齿轮116。电机齿轮116与齿轮系12的输入齿轮啮合。
4、电机转轴的前端套装上后轴承114；在转子115上套装套筒113，并使后轴承114置于套筒113的后轴承座1138内；在套筒113的凹槽1137内放置第三密封圈7；
5、在套筒113上套装电机外壳111，使套筒113上的凸耳第二连接凸耳1133与和电机外壳111上的第一连接凸耳对齐，以及使第一安装孔1134和第二安装孔1115对齐，同时，套筒113上齿槽1136与电机外壳111上的齿槽1113通过齿-槽相对的方式形成配合。
6、将电机外壳111通过卡扣1112与电机安装座41上的第二卡槽47连接，然后通过螺钉将套筒113和电机外壳111固定到电机安装座41上。
上述装配方式不是唯一的，根据各部件的形状和连接方式可以进行调整。
参照图20，本公开也提供了一种静密封结构的电子阀。电机安装座41置于阀体4外侧，套筒113、电机安装座41和阀体4一体成型。PCB箱22设置在电机外壳111上，电机11的引出线可直接引入PCB箱22与其内设置的控制板13连接。
应该理解到的是：上述实施例只是对本公开的说明，而不是对本公开的限制，任何不超出本公开实质精神范围内的实用新型创造，均落入本公开的保护范围之内。
工业实用性：
综上所述，本公开提供了一种电子阀的双密封结构、电子阀的密封结构以及静密封电子阀，密封效果好，使用寿命长。

Claims (20)

  1. 一种电子阀的双密封结构，包括阀体和阀芯，其特征在于，所述阀体通过注塑一体成型，所述阀体和所述阀芯之间设有防止冷却液泄漏到上部动力装置安装空间的第一密封圈和第二密封圈，所述第一密封圈和所述第二密封圈沿所述阀芯轴向上下间隔设置。
  2. 根据权利要求1所述的一种电子阀的双密封结构，其特征在于，所述阀体包括依次连接的阀体上部、阀体缩颈部和阀体下部，所述第一密封圈和第二密封圈设置在所述阀体缩颈部。
  3. 根据权利要求1或者2所述的一种电子阀的双密封结构，其特征在于，所述阀体的内周面上设有凸环，所述凸环背离所述阀体下部的顶平面、所述阀体的内周面和所述阀杆的外周面共同构成环形的第一密封圈槽，所述第一密封圈设置于所述第一密封槽内；所述凸环靠近所述阀体下部的底平面、所述阀体缩颈部的内周面和阀杆的外周面共同构成第二密封圈槽，所述第二密封圈设置于所述第二密封圈槽内。
  4. 根据权利要求3所述的一种电子阀的双密封结构，其特征在于，所述第一密封圈与所述顶平面具有间隔，和/或所述第二密封圈与所述底平面具有间隔。
  5. 根据权利要求1-4中任一项所述的一种电子阀的双密封结构，其特征在于，所述阀芯包括芯体和阀杆，所述芯体上开设有流道，所述阀杆与所述芯体的交界处设有凸出于所述阀杆的外周面的台阶面；所述第一密封圈和第二密封圈套设在所述阀杆外。
  6. 一种电子阀的密封结构，包括密封件、阀芯和接管，所述密封件具有与所述阀芯连接的入口端和与所述接管连接的出口端，其特征在于，所述密封件的入口端与所述的阀芯过盈配合，形成第一密封区域；所述密封件的内壁设有环状的凸筋，所述凸筋与接管一端的外周面过盈配合，形成第二密封区域；所述接管一端还设有一个环形的密封平面，该密封平面与所述密封件的出口端配合，形成第三密封区域。
  7. 根据权利要求6所述的一种电子阀的密封结构，其特征在于，所述凸筋为至少两条，至少两条所述凸筋沿所述入口端向所述出口端的方向间隔排布。
  8. 根据权利要求6或者7所述的一种电子阀的密封结构，其特征在于，所述密封件的内径沿所述入口端向所述出口端的方向逐渐增大，对应的，所述接管与所述密封件套接的部分的外径沿靠近所述阀芯的一端向远离所述阀芯的一端逐渐增大。
  9. 根据权利要求6-8中任一项所述的一种电子阀的密封结构，其特征在于，所述密封件的入口端具有与所述阀芯相贴合的入口端面，所述入口端面设置有耐磨润滑涂层。
  10. 根据权利要求6-9中任一项所述的一种电子阀的密封结构，其特征在于，所述凸筋与所述接管配合的过盈量不低于5％。
  11. 根据权利要求6-10中任一项所述的一种电子阀的密封结构，其特征在 于，所述密封件的入口端与所述阀芯配合的过盈量不低于5％。
  12. 一种静密封结构的电子阀，包括阀体、阀盖、流量控制装置和动力装置；所述流量控制装置包括阀芯；所述动力装置包括齿轮系、控制板和电机；所述电机包括外壳、定子和转子；其特征在于，在所述定子和所述转子之间设有套筒，所述套筒的开口端与所述阀体连接，并将所述转子、所述齿轮系和所述阀芯置于密闭的流体介质环境中。
  13. 根据权利要求12所述的电子阀，其特征在于，所述套筒的开端口与所述阀体之间设置有密封圈。
  14. 根据权利要求12或者13所述的一种静密封结构的电子阀,其特征在于，所述套筒包括相连的筒体以及环形的凸缘，所述筒体的一端封闭另一端为开口端，所述凸缘位于所述开口端且向外延伸，所述凸缘具有围绕所述筒体的周向延伸的环形凹槽，所述密封圈设于所述环形凹槽内。
  15. 根据权利要求12-14中任一项所述的电子阀，其特征在于，所述套筒与所述阀体一体成型。
  16. 根据权利要求12-14中任一项所述的电子阀，其特征在于，所述套筒与所述阀体采用螺钉、卡扣或铆钉固定连接。
  17. 根据权利要求12-16中任一项所述的电子阀，其特征在于，所述阀体的外表面具有平面安装部，所述平面安装部设置有与所述阀体的内腔连通的通孔以及围绕所述通孔的环形安装槽，所述套筒的开口端所在端面与所述平面安装部贴合，所述套筒与所述通孔连通，所述密封圈设于所述环形安装槽内。
  18. 根据权利要求12-17中任一项所述的电子阀，其特征在于，所述外壳与所述阀体可拆卸地连接。
  19. 根据权利要求12-18中任一项所述的电子阀，其特征在于，所述电机的输出轴伸入所述阀体内，且所述输出轴与所述齿轮系的输入齿轮传动连接，所述齿轮系的输出齿轮配置成驱动所述阀芯运动。
  20. 根据权利要求12-19中任一项所述的电子阀，其特征在于，所述阀盖与所述阀体焊接。
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