WO2025001385A1 - 电动阀的阀芯组件、电动阀、热管理系统及车辆 - Google Patents

电动阀的阀芯组件、电动阀、热管理系统及车辆 Download PDF

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Publication number
WO2025001385A1
WO2025001385A1 PCT/CN2024/084974 CN2024084974W WO2025001385A1 WO 2025001385 A1 WO2025001385 A1 WO 2025001385A1 CN 2024084974 W CN2024084974 W CN 2024084974W WO 2025001385 A1 WO2025001385 A1 WO 2025001385A1
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WIPO (PCT)
Prior art keywords
groove
valve
section
valve core
groove section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2024/084974
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English (en)
French (fr)
Inventor
卢音波
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BYD Co Ltd
Original Assignee
BYD Co Ltd
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Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025001385A1 publication Critical patent/WO2025001385A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • 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
    • F16K1/02—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 screw-spindle
    • F16K1/04—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 screw-spindle with a cut-off member rigid with the spindle, e.g. main 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
    • 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
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid 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
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise

Definitions

  • the present disclosure relates to the technical field of electric valve structures, and in particular to a valve core assembly of an electric valve, an electric valve, a thermal management system and a vehicle.
  • the electric valve controls the movement of the valve stem through the driving member to realize the conduction or cutoff of the control flow path.
  • a stopper and an abutment portion for stopping the stopper are usually provided in the related technology.
  • the driving member is connected to the stopper, so that the stopper is driven to move together with the driving member when the valve stem is driven to move.
  • the stopper abuts against the abutment portion, the movement of the driving member is restricted, thereby further limiting the movement range of the valve stem.
  • the stopper In the process of the stopper abutting against the abutment portion, the stopper is prone to a large impact with the abutment portion due to excessive speed, thereby generating noise, causing abnormal noise inside the electric valve, affecting the user experience.
  • the purpose of the present disclosure is to provide a valve core assembly of an electric valve, an electric valve, a thermal management system and a vehicle to solve the problems in the above-mentioned related technologies.
  • the first aspect of the present disclosure provides a valve core assembly of an electric valve, the valve core assembly comprising a valve core body and a stopper, the valve core body is used for a valve stem of the electric valve to pass through, the stopper is used to connect with a driving member that drives the valve stem to move, a spiral limiting groove and an abutment are formed on the outer peripheral surface of the valve core body, the spiral limiting groove cooperates with the stopper guide, and the abutment is used to stop the stopper;
  • the spiral limiting groove includes a first groove section and a second groove section, the groove width of the second groove section is smaller than the groove width of the first groove section, and the second groove section is located between the first groove section and the abutting portion.
  • the second slot section includes a first portion and a second portion, the first portion is located between the first slot section and the second portion, and along the direction from the first slot section to the second portion, the slot width of the first portion is Gradually decrease.
  • the first groove section has two opposite first side groove walls
  • the second groove section has two opposite second side groove walls
  • the second side groove walls protrude outwardly from the first side groove walls along the radial direction of the valve core body.
  • one end of two second side groove walls away from the first groove section is connected to the abutment portion.
  • a distance between the inner surfaces of the two second side groove walls gradually decreases.
  • the anti-rotation member includes an annular main body and a connecting portion, the annular main body is movably arranged in the spiral limiting groove, one end of the connecting portion is connected to the annular main body, and the other end of the connecting portion extends outward from the spiral limiting groove and is used to connect with the driving member, and at least part of the connecting portion can be located in the second groove section when the anti-rotation member abuts against the abutting portion.
  • the connecting portion further includes an arcuate transition section and an extension section, one end of the arcuate transition section is connected to the end of the annular main body portion close to the abutting portion, and the extension section extends from the other end of the arcuate transition section in a direction away from the spiral limiting groove, and at least a portion of the arcuate transition section can be located in the second groove section when the connecting portion abuts against the abutting portion.
  • the abutment portion includes an abutment member and a buffer member, and when the anti-rotation member abuts against the abutment portion, the buffer member is located between the abutment member and the anti-rotation member.
  • the anti-rotation member is made of elastic material
  • the abutment portion includes a first abutment portion arranged at one end of the spiral limiting groove and a second abutment portion arranged at the other end of the spiral limiting groove, the second groove section is located between one end of the first groove section and the first abutment portion, and the second abutment portion is located at the other end of the first groove section.
  • the abutment portion includes a first abutment portion arranged at the first end of the spiral limiting groove and a second abutment portion arranged at the second end of the spiral limiting groove
  • the spiral limiting groove includes two second groove sections, one of the two second groove sections is located between the first abutment portion and the first end of the first groove section, and the other of the two second groove sections is located between the second abutment portion and the second end of the first groove section.
  • a difference between a groove width of the second groove segment and a thickness of a portion of the detent member located in the second groove segment is less than or equal to 0.1 mm.
  • the second aspect of the present disclosure provides an electric valve, including a valve stem, a driving member and the valve core assembly of the above-mentioned electric valve, the valve stem passes through the valve core body of the valve core assembly, the driving member is connected to the valve stem and is used to drive the valve stem to move, and the stop member is connected to the driving member.
  • the driving member comprises a magnetic rotor, which is sleeved on the outside of the valve core body and can rotate relative to the valve core body;
  • a protrusion is formed on the inner top wall or the inner side wall of the magnetic rotor, and the protrusion is connected to the anti-rotation member to drive the anti-rotation member to move in the spiral limiting groove.
  • a third aspect of the present disclosure provides a thermal management system, comprising the above-mentioned electric valve.
  • a fourth aspect of the present disclosure provides a vehicle, comprising the above-mentioned thermal management system.
  • the second groove section in the valve core assembly can play a tighter clamping role on the stopper, which can reduce the shaking amplitude or stringing amplitude of the stopper when moving in the second groove section, thereby reducing the noise generated by the stopper in the second groove section and improving the stability of the stopper moving in the second groove section.
  • the second groove section can also play a deceleration and buffering role on the movement of the driving member.
  • the stopper Before the stopper moves toward the abutment portion and abuts with it, the stopper passes through the second groove section and decelerates in the second groove section to achieve buffering, so that the stopper has a smaller speed when abutting with the abutment portion, thereby effectively reducing the collision noise when the stopper abuts with the abutment portion.
  • FIG. 1 is a perspective view of a valve core assembly provided in accordance with an exemplary embodiment of the present disclosure, wherein a rotation stopper abuts against a first abutting portion.
  • FIG. 2 is an enlarged view of portion A in FIG. 1 .
  • FIG. 3 is a partial front view of a valve core assembly provided in accordance with an exemplary embodiment of the present disclosure.
  • FIG. 4 is a perspective view of a valve core assembly provided by another exemplary embodiment of the present disclosure, wherein the rotation-stopping member abuts against the second abutting portion.
  • FIG. 5 is a perspective view of a rotation stopper of a valve core assembly provided in accordance with an exemplary embodiment of the present disclosure.
  • FIG. 6 is a cross-sectional view of an electric valve provided according to an exemplary embodiment of the present disclosure.
  • FIG. 7 is a perspective view of a driving member of an electric valve provided in accordance with an exemplary embodiment of the present disclosure.
  • the terms "disposed” and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements.
  • the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
  • an electric valve generally refers to a valve structure that electrically drives the valve core to move to block or open the valve port, such as a solenoid valve.
  • the electric valve generally includes a driving member, a valve stem, and a valve needle connected to the valve stem.
  • the driving member can drive the valve stem to rotate under the action of a driving mechanism (for example, a coil assembly drives the magnetic rotor to rotate) to drive the valve needle to approach or move away from the valve port, thereby achieving the blocking or opening of the valve port.
  • a stopper and an abutment portion are generally required to be provided in the electric valve to achieve corresponding position limits on the stroke of the driving member or the screw, so as to prevent its movement from exceeding the stroke range and affecting the functionality of the electric valve.
  • a stopper connected to the driving member is generally provided in the electric valve, and the stopper can cooperate with the abutment portion in the stroke following the movement of the driving member to limit the further movement of the driving member.
  • the first aspect of the present disclosure provides a valve core assembly 10 of an electric valve 100, which includes a valve core body 1 and a stop member 2.
  • the valve core body 1 is used for the valve stem 3 of the electric valve 100 to pass through, and the stop member 2 is used to connect with the driving member 4 that drives the valve stem 3 to move.
  • a spiral limit groove 11 and an abutment 14 are formed on the outer peripheral surface of the valve core body 1.
  • the spiral limit groove 11 is guided and matched with the stop member 2, and the abutment 14 is used to stop the stop member 2.
  • the spiral limit groove 11 includes a first groove section 12 and a second groove section 13.
  • the groove width of the second groove section 13 is smaller than the groove width of the first groove section 12, and the second groove section 13 is located between the first groove section 12 and the abutment 14.
  • valve core assembly 10 is applied to the electric valve 100, and the valve core body 1 can be used for the valve stem 3 of the electric valve 100 to pass through, and the driving member 4 of the electric valve 100 is connected to the valve stem 3 and the stop member 2, and the spiral limit groove 11 is guided and matched with the stop member 2.
  • the driving member 4 can drive the valve stem 3 to move, and at the same time drive the stop member 2 to move along the spiral limit groove 11.
  • the stop member 2 is guided and matched with the spiral limit groove 11, that is, the stop member 2 can move along the extension direction of the spiral limit groove 11 under the guidance of the spiral limit groove 11.
  • the spiral limiting groove 11 is a spiral groove formed on the outer peripheral surface of the valve core body 1, when the stop member 2 moves along the extension direction of the spiral limit groove 11, the stop member 2 It also rotates around the valve core body 1.
  • the spiral limiting groove 11 includes a first groove section 12 and a second groove section 13.
  • the groove width of the second groove section 13 is smaller than that of the first groove section 12.
  • the groove width of the first groove section 12 refers to the distance between the two groove walls forming the first groove section 12.
  • the first groove section 12 has two opposite first side groove walls 121, and the straight-line distance between the two first side groove walls 121 is the groove width of the first groove section 12.
  • the groove width of the second groove section 13 refers to the distance between the two groove walls forming the second groove section 13.
  • the second groove section 13 Since the groove width of the second groove section 13 is smaller than that of the first groove section 12, when the stopper 2 moves from the first groove section 12 to the second groove section 13, the second groove section 13 can clamp the stopper 2 more tightly, which can reduce the shaking amplitude or stringing amplitude of the stopper 2 when moving in the second groove section 13, thereby reducing the noise generated by the stopper 2 in the second groove section 13 and improving the movement stability of the stopper 2. In addition, since the groove width of the second groove section 13 is smaller, the stopper 2 is more likely to rub against the groove wall of the second groove section 13 when moving in the second groove section 13.
  • the resistance encountered by the stopper 2 when moving in the second groove section 13 is greater than the resistance encountered by the stopper 2 when moving in the first groove section 12, and the second groove section 13 can slow down the movement of the stopper 2.
  • the second groove section 13 is located between the first groove section 12 and the abutment portion 14. Before the stop member 2 moves toward the abutment portion 14 and contacts the abutment portion 14, the stop member 2 first passes through the second groove section 13.
  • the second groove section 13 has a speed-reducing and buffering effect on the stop member 2, so that the stop member 2 has a smaller speed when abutting against the abutment portion 14, thereby effectively reducing the collision noise when the stop member 2 abuts against the abutment portion 14.
  • the second groove section 13 in the valve core assembly 10 can play a tighter clamping role on the stopper 2, and can reduce the shaking amplitude or stringing amplitude of the stopper 2 when moving in the second groove section 13, thereby reducing the noise generated by the stopper 2 in the second groove section 13 and improving the stability of the stopper 2 moving in the second groove section 13.
  • the second groove section 13 can also play a deceleration and buffering role on the movement of the driving member 4.
  • the stopper 2 Before the stopper 2 moves toward the abutment portion 14 and abuts therewith, the stopper 2 passes through the second groove section 13 and decelerates in the second groove section 13 to achieve buffering, so that the stopper 2 has a smaller speed when abutting the abutment portion 14, thereby effectively reducing the collision noise when the stopper 2 abuts the abutment portion 14.
  • connection between the above-mentioned stopper 2 and the driving member 4 refers to that the stopper 2 and the driving member 4 can be fixedly connected by welding, bonding or clamping, or the above-mentioned stopper 2 can also abut against the driving member 4, that is, there is no fixed connection relationship between the stopper 2 and the driving member 4, but a selectively separable connection is achieved by abutment, and the present disclosure does not limit the specific connection method between the stopper 2 and the driving member 4.
  • the above-mentioned second groove segment 13 is located between the first groove segment 12 and the abutment portion 14, specifically, the first groove segment 12, the second groove segment 13 and the abutment portion 14 are arranged in sequence in the spiral extension direction of the spiral limiting groove 11, so that when the stopper 2 moves under the guidance of the spiral limiting groove 11, it can pass through the first groove segment 12 and the second groove segment 13 in sequence to achieve abutment with the abutment portion 14. catch.
  • the above-mentioned spiral limiting groove 11 can be formed as a continuous spiral limiting groove 11, or the spiral limiting groove 11 can also be formed as a discontinuous spiral limiting groove 11.
  • the spiral limiting groove 11 can include a plurality of groove body portions spaced apart along the extension direction, and the plurality of groove body portions are arranged in a spiral manner on the outer peripheral surface of the valve core body 1 to form the spiral limiting groove 11.
  • the first groove section 12 can include one or more of the plurality of groove body portions, or the first groove section 12 can be a part of the groove body portion.
  • the second groove section 13 can include one or more of the plurality of groove body portions, or the first groove section 12 can be a part of the groove body portion.
  • the end of the groove body portion away from the abutment portion 14 constitutes a partial structure of the first groove section 12, and the end of the groove body portion close to the abutment portion is the second groove section 13.
  • the present disclosure does not limit the specific composition of the spiral limiting groove 11.
  • the spiral limit groove 11 is a discontinuous spiral limit groove 11 , it can be understood that when the stop member 2 moves in the spiral limit groove 11 , part of the stop member 2 may be in the groove body of the spiral limit groove 11 .
  • the above-mentioned abutment portion 14 is used to stop the anti-rotation member 2.
  • the abutment portion 14 can be located at the end of the spiral limiting groove 11 in the spiral extension direction.
  • the abutment portion 14 can be connected to the end of the spiral limiting groove 11, or the abutment portion 14 can be spaced apart from the end of the spiral limiting groove 11, that is, there can be a gap between the abutment portion 14 and the end of the spiral limiting groove 11.
  • the valve core assembly 10 provided in the present disclosure is applied to the electric valve 100, where the electric valve 100 can be an electric switch valve or a flow control valve, etc., and the present disclosure does not limit the specific type of the electric valve 100.
  • the driving member 4 in the electric valve 100 can be any structure such as a magnetic rotor 41 or a threaded sleeve.
  • the driving member 4 can be a magnetic rotor 41, and the magnetic rotor 41 can rotate under the drive of the coil assembly to drive the valve stem 3 to rotate.
  • the valve core body 1 is used for the valve stem 3 of the electric valve 100 to pass through.
  • the valve core body 1 can be formed with a mounting hole for the valve stem 3 to pass through.
  • the interior of the mounting hole is at least partially formed with a threaded section, and the outer peripheral surface of the valve stem 3 can be formed with an external thread.
  • the valve stem 3 is inserted into the mounting hole and is threadedly connected with the mounting hole. In the process of the magnetic rotor 41 driving the valve stem 3 to rotate, the valve stem 3 will also move axially relative to the valve core body 1.
  • the electric valve 100 those skilled in the art can realize it through relevant technologies, and the present disclosure does not specifically limit this.
  • the stopper 2 is movable in the spiral limit groove 11, that is, the groove width of the spiral limit groove 11 is greater than the thickness of the portion of the stopper 2 located in the spiral limit groove 11.
  • the groove width of the spiral limit groove 11 and the thickness of the stopper 2 are in the same direction, thereby allowing the stopper 2 to move along the spiral limit groove 11. Therefore, the groove width of the first groove section 12 is greater than the thickness of the portion of the stopper 2 located in the first groove section 12, and the groove width of the second groove section 13 is greater than the thickness of the portion of the stopper 2 located in the first groove section 12.
  • the slot width of the second slot segment 13 may be the dimension shown by W1
  • the thickness of the portion of the stopper 2 located in the second slot segment 13 may be the dimension shown by W2 .
  • the difference between the groove width of the second groove segment 13 and the thickness of the portion of the stop member 2 located in the second groove segment 13 can be less than or equal to 0.1 mm, and the groove width of the second groove segment 13 (as shown in W1 in FIG3 ) and the thickness of the portion of the stop member 2 located in the second groove segment 13 (as shown in W2 in FIG3 ) are in the same direction.
  • the direction of the groove width of the second groove segment 13 and the direction of the thickness of the portion of the stop member 2 located in the second groove segment 13 are both parallel to the axial direction of the valve core body 1, that is, W1 and W2 are parallel to each other. 2 can be less than or equal to 0.1mm.
  • the gap between the groove wall of the second groove section 13 and the stop member 2 is small, the second groove section 13 can play a good and tight clamping effect on the stop member 2, and the stop member 2 is more likely to contact with the groove wall of the second groove section 13 to generate friction when moving in the second groove section 13.
  • the resistance encountered by the stop member 2 when moving in the second groove section 13 is large, and the second groove section 13 can play a good speed reduction and buffering effect on the movement of the stop member 2, thereby more effectively reducing the noise generated by the movement of the stop member 2.
  • the second slot section 13 may include a first portion 131 and a second portion 132, wherein the first portion 131 is located between the first slot section 12 and the second portion 132, and the slot width of the first portion 131 gradually decreases along the direction from the first slot section 12 to the second portion 132, and the first portion 131 can guide the stopper 2, so that the process of the stopper 2 entering the second slot section 13 from the first slot section 12 is smoother, further reducing noise.
  • the connection between the first portion 131 and the first slot section 12 can be smoothly transitioned, that is, the slot width of the first portion 131 near the end of the first slot section 12 can be the same as the slot width of the first slot section 12.
  • the slot width of each position of the second portion 132 can be the same, or, along the direction from the first slot section 12 to the abutment portion 14, the slot width of the second portion 132 can be gradually reduced.
  • the first groove section 12 has two opposite first side groove walls 121
  • the second groove section 13 has two opposite second side groove walls 133.
  • the second side groove walls 133 can protrude outward from the first side groove wall 121 radially along the valve core body 1. Since the second side groove walls 133 have a larger area in the radial direction of the valve core body 1, the two second side groove walls 133 can be more stably clamped on both sides of the stop member 2, and have a good limiting effect, which is beneficial to reducing the possibility of shaking, stringing or shifting of the stop member 2 in the second groove section 13, thereby further reducing noise.
  • one end of the two second side groove walls 133 away from the first groove section 12 can be connected to the abutment portion 14, that is, the two second side groove walls 133 and the abutment portion 14 can form a groove-shaped structure, and when the stop member 2 moves to a position where it abuts against the abutment portion 14, the abutment portion 14 can limit the movement of the stop member 2.
  • the two second side groove walls 133 can be clamped on both sides of the anti-rotation member 2 , and the two second side groove walls 133 and the abutting portion 14 can jointly play a good limiting role on the anti-rotation member 2 .
  • the distance between the inner surfaces of the two second side groove walls 133 facing each other can be gradually reduced, so that the inner surfaces of the two second side groove walls 133 facing each other can better clamp and limit the stop member 2 and prevent the stop member 2 from slipping out of the second groove section 13.
  • the stopper 2 can be formed into an annular structure.
  • the stopper 2 can include an annular main body 21 and a connecting portion 22, the annular main body 21 is movably arranged in the spiral limit groove 11, one end of the connecting portion 22 is connected to the annular main body 21, and the other end of the connecting portion 22 extends outward from the spiral limit groove 11 and is used to connect with the driving member 4, and at least part of the connecting portion 22 can be located in the second groove section 13 when the stopper 2 abuts against the abutment portion 14.
  • the annular main body 21 can be sleeved on the outer side of the valve core body 1 and arranged in the spiral limit groove 11, and the connecting part 22 is connected between the annular main body 21 and the driving member 4. Since the driving member 4 drives the stop member 2 to move as a whole through the connecting part 22 of the stop member 2, the driving force on the connecting part 22 is greater than that on the annular main body 21, and it is more likely to shake or shift.
  • the connecting part 22 can be located in the second groove section 13, ensuring that the connecting part 22 can be affected by the buffering and limiting effect of the second groove section 13, thereby reducing the amplitude of shaking or displacement of the connecting part 22 during the force-bearing process, thereby effectively reducing the noise generated by the stop member 2.
  • connection part 22 can be connected to the end of the annular main body 21, or the connection part 22 can also be connected to the middle of the annular main body 21.
  • connection part 22 can be one or more, and as an exemplary embodiment, the connection part 22 can be two and respectively connected to the two ends of the annular main body 21.
  • the connecting portion 22 may include an arcuate transition section 221 and an extension section 222, one end of the arcuate transition section 221 is connected to the end of the annular main body portion 21 close to the abutting portion 14, and the extension section 222 extends from the other end of the arcuate transition section 221 toward a direction away from the spiral limiting groove 11, and at least a portion of the arcuate transition section 221 can be located in the second groove section 13 when the connecting portion 22 abuts against the abutting portion 14, and the connecting portion 22 can be smoothly connected to the annular main body portion 21 through the arcuate transition section 221, and the arcuate transition section 221 can have good force transmission performance.
  • the arcuate transition section 221 is limited by the second groove section 13, and can provide a limiting force for both the annular main body portion 21 and the extension section 222, thereby ensuring that the stop member 2 has good stability.
  • the abutment portion 14 includes an abutment member and a buffer member.
  • the buffer member may be located between the abutment member and the anti-rotation member 2.
  • the buffer member may be a gasket or a spring.
  • the impact force of the anti-rotation member 2 moving toward the abutting member can be buffered, thereby reducing the noise generated when the anti-rotation member 2 abuts against the abutting portion 14 .
  • the abutment portion 14 may include a first abutment portion 141 disposed at one end of the spiral limiting groove 11 and a second abutment portion 142 disposed at the other end of the spiral limiting groove 11.
  • the second groove section 13 may be located between the first abutment portion 141 and the first groove section 12, or the second groove section 13 may be located between the second abutment portion 142 and the first groove section 12, or a second groove section 13 may be disposed between the first abutment portion 141 and the first groove section 12 and between the second abutment portion 142 and the first groove section 12, respectively.
  • the abutment portion 14 may include a first abutment portion 141 arranged at the first end of the spiral limit groove 11 and a second abutment portion 142 arranged at the second end of the spiral limit groove 11, and the spiral limit groove 11 includes two second groove sections 13, one of the two second groove sections 13 is located between the first abutment portion 141 and the first end of the first groove section 12 to reduce the noise generated when the stop member 2 abuts against the first abutment portion 141, and the other second groove section 13 is located between the second abutment portion 142 and the second end of the first groove section 12 to reduce the noise generated when the stop member 2 abuts against the second abutment portion 142.
  • the stopper 2 can be made of elastic material, such as a spring or a spring, that is, the stopper 2 can buffer the external force received by its own elastic deformation.
  • the second slot section 13 can be located between one end of the first slot section 12 and the first abutment portion 141, and the second abutment portion 142 is located at the other end of the first slot section 12, that is, the second abutment portion 142 is directly connected to the first slot section 12.
  • the second aspect of the present disclosure provides an electric valve 100, which includes a valve stem 3, a driving member 4 and the valve core assembly 10 of the above-mentioned electric valve 100, the valve stem 3 passes through the valve core body 1 of the valve core assembly 10, the driving member 4 is connected to the valve stem 3 and is used to drive the valve stem 3 to move, and the stop member 2 is connected to the driving member 4.
  • the second groove section 13 in the valve core assembly 10 can play a clamping role on the stop member 2, reducing the shaking amplitude or stringing amplitude of the stop member 2 when moving in the second groove section 13, thereby reducing the noise generated by the stop member 2 in the second groove section 13.
  • the second groove section 13 can also play a deceleration and buffering role on the movement of the driving member 4, so that the stop member 2 has a lower speed when abutting against the abutting portion 14, thereby effectively reducing the abutment between the stop member 2 and the abutting portion 14. 14 collision noise during abutment. It can be seen that the electric valve 100 described above has less noise during use and has a better user experience.
  • valve core body 1 and the valve stem 3 are threadedly matched, so that when the driving member 4 can drive the valve stem 3 to rotate, due to the threaded matching between the valve core body 1 and the valve stem 3, when the valve stem 3 rotates, it will move along the axial direction of the valve core body 1.
  • the drive member 4 can optionally include a magnetic rotor 41, which is sleeved on the outside of the valve core body 1 and can rotate relative to the valve core body 1.
  • the inner top wall or inner side wall of the magnetic rotor 41 is formed with a protrusion 411, which is connected to the stop member 2 to drive the stop member 2 to move in the spiral limit groove 11.
  • the electric valve 100 may further include a coil assembly, which may be sleeved on the outer side of the magnetic rotor 41 and drive the magnetic rotor 41 to rotate.
  • the valve core body 1 is connected to the valve seat 6, and the valve core body 1 may be formed with a mounting hole for the valve stem 3 to pass through, and the interior of the mounting hole is at least partially formed with a threaded section, and the outer peripheral surface of the valve stem 3 may be formed with an external thread, and the valve stem 3 is inserted into the mounting hole and is threadedly connected with the mounting hole.
  • the valve stem 3 will also move axially relative to the valve core body 1.
  • valve stem 3 located in the valve core body 1 can be connected to the valve needle 5, and the valve needle 5 cooperates with the valve port 61 formed on the valve seat 6.
  • valve stem 3 moves axially, it will drive the valve needle 5 to approach or move away from the valve port 61 to block or open the valve port 61, so as to realize the function of the electric valve 100 to control the flow path switch or control the flow.
  • the third aspect of the present disclosure provides a thermal management system, including the above-mentioned electric valve 100.
  • the thermal management system can be an equipment heat exchange system, an air conditioning system, a vehicle air conditioning thermal management system, a battery thermal management system, or a motor electronic control thermal management system, etc.
  • the present disclosure does not specifically limit the type and application scenario of the thermal management system.
  • the above-mentioned electric valve 100 is applied to the thermal management system.
  • the electric valve 100 can be used to adjust the flow or cut-off of the refrigerant or coolant, or to adjust the liquid flow in the flow channel, etc.
  • the present disclosure does not limit the specific position and function of the electric valve 100 in the thermal management system.
  • the fourth aspect of the present disclosure provides a vehicle, including the above-mentioned thermal management system.
  • the vehicle here can be a fuel vehicle, an electric vehicle, or a hybrid vehicle, etc., and the present disclosure does not limit the specific type of the vehicle.
  • the above-mentioned thermal management system is an air conditioning thermal management system, a battery thermal management system, or a motor electronic control thermal management system, etc. of the vehicle, and the present disclosure does not limit the application location and function of the thermal management system in the vehicle.

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  • General Engineering & Computer Science (AREA)
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Abstract

一种车辆，具有热管理系统，该热管理系统具有电动阀(100)，该电动阀具有阀芯组件(10)。阀芯组件(10)包括用于供电动阀的阀杆(3)穿过的阀芯本体(1)和用于与驱动阀杆(3)移动的驱动件(4)连接的止转件(2)，阀芯本体(1)的外周面上形成有螺旋限位槽(11)和抵接部(14)，螺旋限位槽(11)与止转件(2)导向配合，抵接部(14)用于止挡止转件(2)，螺旋限位槽(11)包括第一槽段(12)和第二槽段(13)，第二槽段(13)的槽宽小于第一槽段(12)的槽宽，第二槽段(13)位于第一槽段(11)与抵接部(14)之间。

Description

电动阀的阀芯组件、电动阀、热管理系统及车辆
相关申请的交叉引用
本公开要求在2023年06月27日提交中国专利局、申请号为202321656480.8、名称为“电动阀的阀芯组件、电动阀、热管理系统及车辆”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
本公开涉及电动阀结构技术领域，具体地，涉及一种电动阀的阀芯组件、电动阀、热管理系统及车辆。
背景技术
电动阀通过驱动件控制阀杆移动以实现控制流路的导通或截断，为限制阀杆的移动范围，在相关技术中通常设置有止转件和用于止挡止转件的抵接部，具体地，驱动件与止转件连接，从而在驱动件带动阀杆运动的过程中带动止转件一同运动，当止转件与抵接部抵顶时，驱动件的运动被限制，从而进而限制阀杆的移动范围。而在止转件与抵接部抵接的过程中，止转件容易因速度过大而与抵接部发生较大冲击，从而产生噪音，使电动阀内部产生异响，影响使用体验。
发明内容
本公开的目的是提供一种电动阀的阀芯组件、电动阀、热管理系统及车辆，以解决上述相关技术中的问题。
为了实现上述目的，本公开第一方面提供一种电动阀的阀芯组件，所述阀芯组件包括阀芯本体和止转件，所述阀芯本体用于供电动阀的阀杆穿过，所述止转件用于与驱动所述阀杆移动的驱动件连接，所述阀芯本体的外周面上形成有螺旋限位槽和抵接部，所述螺旋限位槽与所述止转件导向配合，所述抵接部用于止挡所述止转件；
所述螺旋限位槽包括第一槽段和第二槽段，所述第二槽段的槽宽小于所述第一槽段的槽宽，所述第二槽段位于所述第一槽段与所述抵接部之间。
可选地，所述第二槽段包括第一部分和第二部分，所述第一部分位于所述第一槽段与所述第二部分之间，沿从所述第一槽段到所述第二部分的方向，所述第一部分的槽宽 逐渐减小。
可选地，所述第一槽段具有相对的两个第一侧槽壁，所述第二槽段具有相对的两个第二侧槽壁，所述第二侧槽壁沿所述阀芯本体的径向向外凸出于所述第一侧槽壁。
可选地，两个所述第二侧槽壁远离所述第一槽段的一端连接于所述抵接部。
可选地，沿所述阀芯本体的径向向外远离所述阀芯本体的方向，两个所述第二侧槽壁朝向于彼此的内表面之间的间距逐渐减小。
可选地，所述止转件包括环状主体部和连接部，所述环状主体部可移动地设置在所述螺旋限位槽内，所述连接部的一端连接于所述环状主体部，所述连接部的另一端向外伸出于所述螺旋限位槽并用于与所述驱动件连接，至少部分所述连接部能够在所述止转件与所述抵接部抵顶时位于所述第二槽段内。
可选地，所述连接部还包括弧形过渡段和延伸段，所述弧形过渡段的一端与所述环状主体部靠近所述抵接部的端部连接，所述延伸段从所述弧形过渡段的另一端朝向远离所述螺旋限位槽的方向延伸，至少部分所述弧形过渡段能够在所述连接部与所述抵接部抵顶时位于所述第二槽段内。
可选地，所述抵接部包括抵接件和缓冲件，在所述止转件与抵接部抵接时，所述缓冲件位于所述抵接件和所述止转件之间。
可选地，所述止转件由弹性材料制成，所述抵接部包括设置在所述螺旋限位槽的一端的第一抵接部和设置在所述螺旋限位槽的另一端的第二抵接部，所述第二槽段位于所述第一槽段的一端与所述第一抵接部之间，所述第二抵接部位于所述第一槽段的另一端。
可选地，所述抵接部包括设置在所述螺旋限位槽的第一端的第一抵接部和设置在所述螺旋限位槽的第二端的第二抵接部，所述螺旋限位槽包括两个所述第二槽段，两个所述第二槽段中的一个所述第二槽段位于所述第一抵接部与所述第一槽段的第一端之间，两个所述第二槽段中的另一个第二槽段位于所述第二抵接部和所述第一槽段的第二端之间。
可选地，所述第二槽段的槽宽与所述止转件位于所述第二槽段内的部分的厚度的差值小于或等于0.1mm。
本公开第二方面提供一种电动阀，包括阀杆、驱动件和上述的电动阀的阀芯组件，所述阀杆穿过所述阀芯组件的阀芯本体，所述驱动件与所述阀杆连接并用于驱动所述阀杆移动，所述止转件连接于所述驱动件。
可选地，所述驱动件包括磁转子，所述磁转子套设在所述阀芯本体的外部并能够相对于所述阀芯本体转动；
所述磁转子的内顶壁或者内侧壁形成有凸出部，所述凸出部与所述止转件连接，以带动所述止转件在所述螺旋限位槽内运动。
本公开第三方面提供一种热管理系统，包括上述的电动阀。
本公开第四方面提供一种车辆，包括上述的热管理系统。
通过上述技术方案，阀芯组件中的第二槽段能够对止转件起到更紧密的夹持作用，可以降低止转件在第二槽段内移动时的晃动幅度或者串动幅度，从而降低止转件在第二槽段内产生的噪音，提高止转件在第二槽段内移动的稳定性。第二槽段还能够对驱动件的移动起到降速缓冲作用，在止转件朝向于抵接部移动并与其抵接之前，止转件穿过第二槽段并在第二槽段中减速移动以实现缓冲，使得止转件与抵接部发生抵接时具有较小的速度，从而有效降低止转件与抵接部抵接时的碰撞噪音。
本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：
图1是本公开一种示例性实施方式提供的阀芯组件的立体图，其中，止转件抵顶于第一抵接部。
图2是图1中A部分的放大图。
图3是本公开一种示例性实施方式提供的阀芯组件的局部正视图。
图4是本公开另一种示例性实施方式提供的阀芯组件的立体图，其中，止转件抵顶于第二抵接部。
图5是本公开一种示例性实施方式提供的阀芯组件的止转件的立体图。
图6是本公开一种示例性实施方式提供的电动阀的截面图。
图7是本公开一种示例性实施方式提供的电动阀的驱动件的立体图。
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述 的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。
在本公开中，在未作相反说明的情况下，使用的方位词如“上、下、左、右”通常是附图的图面的方向定义的。“内、外”是指相关零部件的内、外。此外，术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本公开的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接，可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
相关技术中，电动阀通常是指电动驱动阀芯运动以封堵或者打开阀口的阀结构，例如电磁阀。电动阀通常包括驱动件、阀杆以及与阀杆连接的阀针，驱动件在驱动机构的作用下(例如线圈组件驱动磁转子转动)能够带动阀杆转动，以驱动阀针靠近或者远离阀口，从而实现对阀口的封堵或者打开。在上述过程中，电动阀内通常需要设置止转件以及抵接部以对驱动件或螺杆的行程实现相应的限位，避免其运动超过行程范围而对电动阀的功能性造成影响。相关技术中，电动阀内通常设置有与驱动件连接的止转件，止转件在跟随驱动件移动的行程中能够与抵接部配合，以限制驱动件的进一步运动。然而，在止转件与抵接部抵接的过程中容易与抵接部发生较大撞击，从而产生碰撞噪音，使得电动阀内部产生异响，影响使用体验。
有鉴于此，如图1至图6所示，本公开第一方面提供了一种电动阀100的阀芯组件10，该阀芯组件10包括阀芯本体1和止转件2，阀芯本体1用于供电动阀100的阀杆3穿过，止转件2用于与驱动阀杆3移动的驱动件4连接，阀芯本体1的外周面上形成有螺旋限位槽11和抵接部14，螺旋限位槽11与止转件2导向配合，抵接部14用于止挡止转件2，螺旋限位槽11包括第一槽段12和第二槽段13，第二槽段13的槽宽小于第一槽段12的槽宽，第二槽段13位于第一槽段12与抵接部14之间。
上述的阀芯组件10应用于电动阀100中，阀芯本体1可以用于供电动阀100的阀杆3穿过，电动阀100的驱动件4连接于阀杆3和止转件2，螺旋限位槽11与止转件2导向配合，驱动件4可以驱动阀杆3移动，并同时带动止转件2沿螺旋限位槽11运动。需要说明的是，止转件2与螺旋限位槽11导向配合，即止转件2可以在螺旋限位槽11的导向作用下沿螺旋限位槽11的延伸方向移动，由于螺旋限位槽11是形成在阀芯本体1的外周面上的螺旋形的槽，止转件2沿螺旋限位槽11的延伸方向移动的同时，止转件2 也围绕阀芯本体1转动。螺旋限位槽11包括第一槽段12和第二槽段13，第二槽段13的槽宽小于第一槽段12的槽宽，需要说明的是，第一槽段12的槽宽是指形成第一槽段12的两个槽壁之间的距离，例如，第一槽段12具有相对的两个第一侧槽壁121，两个第一侧槽壁121之间直线距离即为第一槽段12的槽宽。同理，第二槽段13的槽宽指形成第二槽段13的两个槽壁之间的距离。
由于第二槽段13的槽宽小于第一槽段12的槽宽，当止转件2从第一槽段12移动至第二槽段13内时，第二槽段13能够对止转件2起到更紧密的夹持作用，可以降低止转件2在第二槽段13内移动时的晃动幅度或者串动幅度，从而降低止转件2在第二槽段13内产生的噪音，提高止转件2的移动稳定性。并且，由于第二槽段13的槽宽较小，止转件2在第二槽段13内移动时更容易与第二槽段13的槽壁发生摩擦，因此，止转件2在第二槽段13内移动所受到的阻力大于止转件2在第一槽段12内移动所受到的阻力，第二槽段13能够对止转件2的移动起到降速缓冲作用。而第二槽段13位于第一槽段12与抵接部14之间，在止转件2朝向于抵接部14移动并与抵接部14接触之前，止转件2先穿过第二槽段13，第二槽段13对止转件2起到降速缓冲作用，使得止转件2与抵接部14发生抵接时具有较小的速度，从而有效降低止转件2与抵接部14抵接时的碰撞噪音。
通过上述技术方案，阀芯组件10中的第二槽段13能够对止转件2起到更紧密的夹持作用，可以降低止转件2在第二槽段13内移动时的晃动幅度或者串动幅度，从而降低止转件2在第二槽段13内产生的噪音，提高止转件2在第二槽段13内移动的稳定性。第二槽段13还能够对驱动件4的移动起到降速缓冲作用，在止转件2朝向于抵接部14移动并与其抵接之前，止转件2穿过第二槽段13并在第二槽段13中减速移动以实现缓冲，使得止转件2与抵接部14发生抵接时具有较小的速度，从而有效降低止转件2与抵接部14抵接时的碰撞噪音。
需要说明的是，上述的止转件2与驱动件4连接，指的是止转件2与驱动件4可以通过焊接、粘接或卡接等方式固定连接，或者，上述的止转件2也可以与驱动件4抵接，即，止转件2和驱动件4之间没有固定连接关系，而是通过抵接的方式实现可选择性分离的连接，本公开对于止转件2与驱动件4之间的具体连接方式不做限制。上述的第二槽段13位于第一槽段12与抵接部14之间，具体是指，第一槽段12、第二槽段13与抵接部14在螺旋限位槽11的螺旋延伸方向上依次排列，使得止转件2在螺旋限位槽11导向配合的作用下活动时，能够依次经过第一槽段12和第二槽段13以与抵接部14实现抵 接。
此外，上述的螺旋限位槽11可以形成为连续的螺旋限位槽11，或者，螺旋限位槽11也可以形成为非连续性的螺旋限位槽11，在该实施例中，如图1所示，螺旋限位槽11可以包括沿延伸方向间隔设置的多个槽体部，多个槽体部在阀芯本体1的外周面上呈螺旋方式排列以构成螺旋限位槽11，第一槽段12可以包括该多个槽体部中的一者或多者，或者，第一槽段12可以为槽体部中的一部分，同理，第二槽段13可以包括多个槽体部中的一者或多者，或者，第一槽段12可以为槽体部中的一部分，例如，如图2所示，槽体部的远离抵接部14的一端构成为第一槽段12的部分结构，槽体部的靠近抵接部的一端为第二槽段13。本公开对于螺旋限位槽11的具体构成不做限制。对于螺旋限位槽11为非连续性的螺旋限位槽11的情况而言，可以理解的是，当止转件2在螺旋限位槽11内运动时，可以是部分止转件2在螺旋限位槽11的槽体部内。
上述的抵接部14用于止挡止转件2，抵接部14可以位于螺旋限位槽11在螺旋延伸方向上的端部，抵接部14可以与螺旋限位槽11的端部连接，或者，抵接部14也可以与螺旋限位槽11的端部间隔设置，即，抵接部14可以与螺旋限位槽11的端部之间具有间隙。如图1所示，抵接部14可以为两个，两个抵接部14可以分别位于螺旋限位槽11在螺旋延伸方向上的两端。
本公开提供的阀芯组件10应用于电动阀100，这里的电动阀100可以为电动开关阀或者流量调节阀等，本公开对于电动阀100的具体类型不做限制。电动阀100内的驱动件4可以为磁转子41或者螺纹套筒等任意结构，作为一种示例性实施方式，驱动件4可以为磁转子41，磁转子41可以在线圈组件的驱动下转动，以带动阀杆3转动。而阀芯本体1用于供电动阀100的阀杆3穿过，阀芯本体1可以形成有用于供阀杆3穿过的安装孔，可选地，安装孔的内部至少部分形成有螺纹段，阀杆3的外周面可以形成有外螺纹，阀杆3穿设于安装孔内且与安装孔螺纹连接，在磁转子41驱动阀杆3转动的过程中，阀杆3同时也会相对于阀芯本体1发生轴向的移动。对于电动阀100的运行原理以及具体结构，本领域技术人员可以通过相关技术实现，本公开对此不做具体限定。
在上述实施例中，止转件2在螺旋限位槽11内可移动，即，螺旋限位槽11的槽宽大于止转件2位于螺旋限位槽11内的部分的厚度，这里的螺旋限位槽11的槽宽与止转件2的厚度为同一方向，从而允许止转件2能够实现沿螺旋限位槽11的移动。因此，第一槽段12的槽宽大于止转件2位于第一槽段12内的部分的厚度，第二槽段13的槽宽大 于止转件2位于第二槽段13内的部分的厚度。在一种示例性实施方式中，如图3所示，第二槽段13的槽宽可以为W1所示出的尺寸，止转件2位于第二槽段13内的部分的厚度可以为W2所示出的尺寸。
如图3所示，可选地，第二槽段13的槽宽与止转件2位于第二槽段13内的部分的厚度的差值可以小于或等于0.1mm，第二槽段13的槽宽(参考图3中的W1所示)与止转件2位于第二槽段13内的部分的厚度(参考图3中的W2所示)的方向为同一方向，如图3所示，第二槽段13的槽宽的方向和止转件2位于第二槽段13内的部分的厚度的方向均与阀芯本体1的轴向平行，即W1与W2的差值可以小于或等于0.1mm，在该实施例中，第二槽段13的槽壁与止转件2之间的间隙小，第二槽段13能够对止转件2起到良好而紧密的夹持作用，且止转件2在第二槽段13内移动时更易与第二槽段13的槽壁接触以发生摩擦，止转件2在第二槽段13内移动所受到的阻力大，第二槽段13能够对止转件2的移动起到良好的降速缓冲作用，从而更有效地降低止转件2移动所产生的噪音。
在一种示例性实施方式中，可选地，第二槽段13可以包括第一部分131和第二部分132，第一部分131位于第一槽段12与第二部分132之间，沿从第一槽段12到第二部分132的方向，第一部分131的槽宽逐渐减小，第一部分131能够对止转件2起到导向作用，使得止转件2从第一槽段12进入第二槽段13的过程更加平缓，进一步降低噪音。在该实施例中，可选地，第一部分131与第一槽段12的连接处可以平滑过渡，即，第一部分131靠近第一槽段12的端部的槽宽可以与第一槽段12的槽宽相同。可选地，第二部分132的各个位置的槽宽可以相同，或者，沿从第一槽段12到抵接部14的方向，第二部分132的槽宽可以逐渐减小。
如图2所示，可选地，第一槽段12具有相对的两个第一侧槽壁121，第二槽段13具有相对的两个第二侧槽壁133，第二侧槽壁133可以沿阀芯本体1的径向向外凸出于第一侧槽壁121，由于第二侧槽壁133在阀芯本体1的径向具有更大的面积，两个第二侧槽壁133能够更稳定地夹持在止转件2的两侧，具有良好的限位作用，有利于降低止转件2在第二槽段13中产生晃动、串动或者移位的可能性，从而进一步降低噪音。
在上述实施例中，如图3和图4所示，可选地，两个第二侧槽壁133远离第一槽段12的一端可以连接于抵接部14，即，两个第二侧槽壁133与抵接部14能够构成一个槽状结构，止转件2移动与抵接部14相互抵接的位置时，抵接部14能够限制止转件2的 进一步移动，而两个第二侧槽壁133能够夹持在止转件2的两侧，两个第二侧槽壁133与抵接部14能够共同对止转件2起到良好的限位作用。
可选地，沿阀芯本体1的径向向外远离阀芯本体1的方向，两个第二侧槽壁133朝向于彼此的内表面之间的间距可以逐渐减小，使得两个第二侧槽壁133朝向于彼此的内表面能够对止转件2起到更好的夹持、限位作用，并防止止转件2向外脱出于第二槽段13。
为了便于止转件2与螺旋限位槽11配合，止转件2可以形成为环形结构。如图2至图5所示，可选地，止转件2可以包括环状主体部21和连接部22，环状主体部21可移动地设置在螺旋限位槽11内，连接部22的一端连接于环状主体部21，连接部22的另一端向外伸出于螺旋限位槽11并用于与驱动件4连接，至少部分连接部22能够在止转件2与抵接部14抵顶时位于第二槽段13内。如图2所示，环状主体部21可以套接在阀芯本体1的外侧并设置在螺旋限位槽11内，连接部22连接在环状主体部21和驱动件4之间，由于驱动件4通过止转件2的连接部22带动止转件2整体移动，连接部22上受到的驱动力相比于环状主体部21更大，也更容易产生晃动或者移位，而在止转件2与抵接部14抵顶时，至少部分连接部22能够位于第二槽段13内，保证连接部22能够受到第二槽段13的缓冲限位作用，降低连接部22在受力过程中产生的晃动或者移位的幅度，从而有效降低止转件2产生的噪音。
在上述实施例中，连接部22可以连接于环状主体部21的端部，或者，连接部22也可以连接于环状主体部21的中部。此外，连接部22可以为一个或者多个，作为一种示例性实施例，连接部22可以为两个并分别连接于环状主体部21的两个端部。在连接部22连接于环状主体部21的端部的实施例中，如图5所示，可选地，连接部22可以包括弧形过渡段221和延伸段222，弧形过渡段221的一端与环状主体部21靠近抵接部14的端部连接，延伸段222从弧形过渡段221的另一端朝向远离螺旋限位槽11的方向延伸，至少部分弧形过渡段221能够在连接部22与抵接部14抵顶时位于第二槽段13内，连接部22通过弧形过渡段221能够与环状主体部21平滑连接，弧形过渡段221能够具有良好的传力性能，弧形过渡段221受到第二槽段13的限位作用，能够为环状主体部21与延伸段222均提供限位的作用力，从而保证止转件2具有良好的稳定性。
可选地，抵接部14包括抵接件和缓冲件，在止转件2与抵接部14抵接时，缓冲件可以位于抵接件和止转件2之间，例如，缓冲件可以为垫片或者弹片等。缓冲件位于抵 接件和止转件2之间，可以对止转件2朝向于抵接件运动的冲击力进行缓冲，从而降低止转件2与抵接部14抵接时产生的噪音。
可选地，抵接部14可以包括设置在螺旋限位槽11的一端的第一抵接部141和设置在螺旋限位槽11的另一端的第二抵接部142。其中，第二槽段13可以位于第一抵接部141与第一槽段12之间，或者，第二槽段13可以位于第二抵接部142与第一槽段12之间，或者，第一抵接部141与第一槽段12之间以及第二抵接部142与第一槽段12之间分别设置有一个第二槽段13。
作为一种示例性实施方式，可选地，抵接部14可以包括设置在螺旋限位槽11的第一端的第一抵接部141和设置在螺旋限位槽11的第二端的第二抵接部142，螺旋限位槽11包括两个第二槽段13，两个第二槽段13中的一个第二槽段13位于第一抵接部141与第一槽段12的第一端之间，以降低止转件2与第一抵接部141抵接时产生的噪音，两个第二槽段13中的另一个第二槽段13位于第二抵接部142和第一槽段12的第二端之间，以降低止转件2与第二抵接部142抵接时产生的噪音。
作为另一种示例性实施方式，可选地，止转件2可以为弹性材料制成，例如弹片或者弹簧等，即止转件2可以通过自身的弹性形变对受到的外力进行缓冲。在该实施例中，作为一种示例性实施方式，第二槽段13可以位于第一槽段12的一端与第一抵接部141之间，第二抵接部142位于第一槽段12的另一端，即第二抵接部142直接连接于第一槽段12。在上述实施例中，如图1至图3所示，当止转件2朝向于第一抵接部141移动时，止转件2能够受到第二槽段13的夹持和缓冲作用，能够降低止转件2与第一抵接部141接触所产生的异响。如图4所示，当止转件2抵接于第二抵接部142时，由于止转件2由弹性材料制成，止转件2产生弹性形变的过程中能够缓冲撞击过程中产生的噪音，从而降低止转件2与第二抵接部142接触所产生的异响。
如图6所示，本公开第二方面提供了一种电动阀100，该电动阀100包括阀杆3、驱动件4和上述的电动阀100的阀芯组件10，阀杆3穿过阀芯组件10的阀芯本体1，驱动件4与阀杆3连接并用于驱动阀杆3移动，止转件2连接于驱动件4。
在上述的电动阀100中，阀芯组件10中的第二槽段13能够对止转件2起到夹持作用，降低止转件2在第二槽段13内移动时的晃动幅度或者串动幅度，从而降低止转件2在第二槽段13内产生的噪音。第二槽段13还能够对驱动件4的移动起到降速缓冲作用，使得止转件2与抵接部14发生抵接时具有较小的速度，从而有效降低止转件2与抵接部 14抵接时的碰撞噪音。由此可见，上述的电动阀100在使用过程中的噪音更小，具有更良好的用户体验。
可选地，阀芯本体1与阀杆3之间螺纹配合，这样，当驱动件4可以驱动阀杆3转动，由于阀芯本体1与阀杆3之间螺纹配合，当阀杆3转动时会沿着阀芯本体1的轴向移动。
对于上述的电动阀100的运行原理以及具体结构，本领域技术人员可以通过相关技术实现，本公开对此不做具体限定。作为一种示例性实施方式，如图6和图7所示，可选地，驱动件4可以包括磁转子41，磁转子41套设在阀芯本体1的外部并能够相对于阀芯本体1转动，磁转子41的内顶壁或者内侧壁形成有凸出部411，凸出部411与止转件2连接，以带动止转件2在螺旋限位槽11内运动。
在上述实施例中，电动阀100还可以包括线圈组件，线圈组件可以套设在磁转子41的外侧并驱动磁转子41转动。作为一种示例性实施方式，阀芯本体1连接于阀座6，阀芯本体1可以形成有用于供阀杆3穿过的安装孔，安装孔的内部至少部分形成有螺纹段，阀杆3的外周面可以形成有外螺纹，阀杆3穿设于安装孔内且与安装孔螺纹连接，在磁转子41驱动阀杆3转动的过程中，阀杆3同时也会相对于阀芯本体1发生轴向的移动。阀杆3位于阀芯本体1内的端部可以连接于阀针5，阀针5与阀座6上形成的阀口61配合，阀杆3发生轴向的移动的同时会驱动阀针5靠近或者远离阀口61，以封堵或者打开阀口61，实现电动阀100控制流路开关或者控制流量的功能。
本公开第三方面提供一种热管理系统，包括上述的电动阀100。该热管理系统可以为设备换热系统、空调系统、车辆的空调热管理系统、电池热管理系统或者电机电控热管理系统等，本公开对于热管理系统的类型和应用场景不做具体限制。上述的电动阀100应用于热管理系统内，电动阀100可以用于调节制冷剂或者冷却液的通流、断流或者用于调节流道内的液体流量等，本公开对于电动阀100在热管理系统中所布置的具体位置和功能不做限制。
本公开第四方面提供一种车辆，包括上述的热管理系统。这里的车辆可以为燃油车辆、电动车辆或者混合动力车辆等，本公开对于车辆的具体类型不做限制。上述的热管理系统为车辆的空调热管理系统、电池热管理系统或者电机电控热管理系统等，本公开对于热管理系统在车辆中的应用位置和功能均不做限制。
以上结合附图详细描述了本公开的优选实施方式，但是，本公开并不限于上述实施 方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。
此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。

Claims (15)

  1. 一种电动阀(100)的阀芯组件(10)，其特征在于，包括：
    阀芯本体(1)，用于供电动阀(100)的阀杆(3)穿过，所述阀芯本体(1)的外周面上形成有螺旋限位槽(11)和抵接部(14)；和
    止转件(2)，用于与驱动所述阀杆(3)移动的驱动件(4)连接，所述螺旋限位槽(11)与所述止转件(2)导向配合，所述抵接部(14)用于止挡所述止转件(2)；
    其中，所述螺旋限位槽(11)包括第一槽段(12)和第二槽段(13)，所述第二槽段(13)的槽宽小于所述第一槽段(12)的槽宽，所述第二槽段(13)位于所述第一槽段(12)与所述抵接部(14)之间。
  2. 根据权利要求1所述的电动阀(100)的阀芯组件(10)，其特征在于，所述第二槽段(13)包括第一部分(131)和第二部分(132)，所述第一部分(131)位于所述第一槽段(12)与所述第二部分(132)之间，沿从所述第一槽段(12)到所述第二部分(132)的方向，所述第一部分(131)的槽宽逐渐减小。
  3. 根据权利要求1或2所述的电动阀(100)的阀芯组件(10)，其特征在于，所述第一槽段(12)具有相对的两个第一侧槽壁(121)，所述第二槽段(13)具有相对的两个第二侧槽壁(133)，所述第二侧槽壁(133)沿所述阀芯本体(1)的径向向外凸出于所述第一侧槽壁(121)。
  4. 根据权利要求3所述的电动阀(100)的阀芯组件(10)，其特征在于，两个所述第二侧槽壁(133)远离所述第一槽段(12)的一端连接于所述抵接部(14)。
  5. 根据权利要求3或4所述的电动阀(100)的阀芯组件(10)，其特征在于，沿所述阀芯本体(1)的径向向外远离所述阀芯本体(1)的方向，两个所述第二侧槽壁(133)朝向于彼此的内表面之间的间距逐渐减小。
  6. 根据权利要求1-5中任一项所述的电动阀(100)的阀芯组件(10)，其特征在于，所述止转件(2)包括环状主体部(21)和连接部(22)，所述环状主体部(21)可移动地设置在所述螺旋限位槽(11)内，所述连接部(22)的一端连接于所述环状主体部(21)， 所述连接部(22)的另一端向外伸出于所述螺旋限位槽(11)并用于与所述驱动件(4)连接，至少部分所述连接部(22)能够在所述止转件(2)与所述抵接部(14)抵顶时位于所述第二槽段(13)内。
  7. 根据权利要求6所述的电动阀(100)的阀芯组件(10)，其特征在于，所述连接部(22)还包括弧形过渡段(221)和延伸段(222)，所述弧形过渡段(221)的一端与所述环状主体部(21)靠近所述抵接部(14)的端部连接，所述延伸段(222)从所述弧形过渡段(221)的另一端朝向远离所述螺旋限位槽(11)的方向延伸，至少部分所述弧形过渡段(221)能够在所述连接部(22)与所述抵接部(14)抵顶时位于所述第二槽段(13)内。
  8. 根据权利要求1-7中任一项所述的电动阀(100)的阀芯组件(10)，其特征在于，所述抵接部(14)包括抵接件和缓冲件，在所述止转件(2)与抵接部(14)抵接时，所述缓冲件位于所述抵接件和所述止转件(2)之间。
  9. 根据权利要求1-8中任一项所述的电动阀(100)的阀芯组件(10)，其特征在于，所述止转件(2)由弹性材料制成，所述抵接部(14)包括设置在所述螺旋限位槽(11)的一端的第一抵接部(141)和设置在所述螺旋限位槽(11)的另一端的第二抵接部(142)，所述第二槽段(13)位于所述第一槽段(12)的一端与所述第一抵接部(141)之间，所述第二抵接部(142)位于所述第一槽段(12)的另一端。
  10. 根据权利要求1-9中任一项所述的电动阀(100)的阀芯组件(10)，其特征在于，所述抵接部(14)包括设置在所述螺旋限位槽(11)的第一端的第一抵接部(141)和设置在所述螺旋限位槽(11)的第二端的第二抵接部(142)，所述螺旋限位槽(11)包括两个所述第二槽段(13)，两个所述第二槽段(13)中的一个所述第二槽段(13)位于所述第一抵接部(141)与所述第一槽段(12)的第一端之间，两个所述第二槽段(13)中的另一个所述第二槽段(13)位于所述第二抵接部(142)和所述第一槽段(12)的第二端之间。
  11. 根据权利要求1-10中任一项所述的电动阀(100)的阀芯组件(10)，其特征在 于，所述第二槽段(13)的槽宽与所述止转件(2)位于所述第二槽段(13)内的部分的厚度的差值小于或等于0.1mm。
  12. 一种电动阀(100)，其特征在于，包括阀杆(3)、驱动件(4)和权利要求1-11中任一项所述的电动阀(100)的阀芯组件(10)，所述阀杆(3)穿过所述阀芯组件(10)的阀芯本体(1)，所述驱动件(4)与所述阀杆(3)连接并用于驱动所述阀杆(3)移动，所述止转件(2)连接于所述驱动件(4)。
  13. 根据权利要求12所述的电动阀(100)，其特征在于，所述驱动件(4)包括磁转子(41)，所述磁转子(41)套设在所述阀芯本体(1)的外部并能够相对于所述阀芯本体(1)转动；
    所述磁转子(41)的内顶壁或者内侧壁形成有凸出部(411)，所述凸出部(411)与所述止转件(2)连接，以带动所述止转件(2)在所述螺旋限位槽(11)内运动。
  14. 一种热管理系统，其特征在于，包括权利要求12或13所述的电动阀(100)。
  15. 一种车辆，其特征在于，包括权利要求14所述的热管理系统。
PCT/CN2024/084974 2023-06-27 2024-03-29 电动阀的阀芯组件、电动阀、热管理系统及车辆 Ceased WO2025001385A1 (zh)

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CN220168717U (zh) * 2023-06-27 2023-12-12 比亚迪股份有限公司 电动阀的阀芯组件、电动阀、热管理系统及车辆

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CN115076434A (zh) * 2021-03-10 2022-09-20 浙江三花汽车零部件有限公司 电动阀及其装配方法
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CN220168717U (zh) * 2023-06-27 2023-12-12 比亚迪股份有限公司 电动阀的阀芯组件、电动阀、热管理系统及车辆

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