WO2021169037A1 - 一种电动阀 - Google Patents

一种电动阀 Download PDF

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Publication number
WO2021169037A1
WO2021169037A1 PCT/CN2020/088922 CN2020088922W WO2021169037A1 WO 2021169037 A1 WO2021169037 A1 WO 2021169037A1 CN 2020088922 W CN2020088922 W CN 2020088922W WO 2021169037 A1 WO2021169037 A1 WO 2021169037A1
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WO
WIPO (PCT)
Prior art keywords
transmission
groove
wall
side wall
gear
Prior art date
Application number
PCT/CN2020/088922
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English (en)
French (fr)
Inventor
严卫林
徐铭辉
Original Assignee
浙江三花制冷集团有限公司
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Publication date
Application filed by 浙江三花制冷集团有限公司 filed Critical 浙江三花制冷集团有限公司
Publication of WO2021169037A1 publication Critical patent/WO2021169037A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K5/06—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 spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K5/06—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 spherical surfaces; Packings therefor

Definitions

  • the invention relates to the technical field of fluid control, in particular to an electric valve.
  • Electric valves are used in fluid control systems to control the on-off or flow of fluid.
  • the coil of the electric valve When working, the coil of the electric valve is energized to drive the rotor to rotate.
  • the rotor drives the reduction gear mechanism and amplifies the output torque, and drives the valve stem to rotate to drive the valve core to open, close or adjust the flow.
  • the transmission part When the rotor shaft of the electric valve rotates, the transmission part is driven to rotate, and the transmission part drives the sun gear to rotate; usually, the motor of the electric valve adopts a stepping motor structure, and the rotor rotates intermittently. There will be intermittent impacts from time to time, causing noise during the operation of the electric valve.
  • the invention provides an electric valve comprising a valve body, a rotor part, a transmission part and a gear reduction mechanism.
  • the rotor part comprises a rotor shaft
  • the transmission part is fixedly connected to the transmission end of the rotor shaft, and the rotor shaft It can drive the transmission member to rotate.
  • One of the transmission member and the input gear of the gear reduction mechanism is provided with a groove portion, and the other is provided with a transmission portion inserted into the groove portion, the transmission member
  • the input gear is driven to rotate by the cooperation of the transmission portion and the groove portion
  • the electric valve further includes an elastic member, and the elastic member is provided at least on one of the transmission portion and the groove portion against the contact surface.
  • one of the transmission component and the input gear in the present invention is provided with a groove portion, and the other is provided with a transmission portion inserted into the groove portion.
  • the electric valve further includes an elastic member, which is arranged at least on the abutting contact surface of one of the transmission part and the groove part, thereby reducing noise during operation of the electric valve.
  • Figure 1 is a schematic structural diagram of an electric valve in an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the assembly of the rotor shaft, the transmission member, the elastic member and the input gear in Fig. 1;
  • Fig. 3 is a schematic diagram of the assembly of the transmission part and the elastic part in Fig. 1;
  • Figure 4 is a schematic diagram of the structure of a transmission element in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the assembly of the rotor shaft, the transmission member, the elastic member and the input gear in the second embodiment of the present invention
  • Fig. 6 is a schematic diagram of the assembly of the rotor shaft, the transmission member, the elastic member and the input gear in the third embodiment of the present invention.
  • 31-input gear 311-large diameter portion; 312-small diameter portion; 31a-groove portion; 31a1-groove wall portion; 31a2-bottom wall; 31b-mounting hole; 32-gear ring; 321-top wall; 322- Peripheral wall; 31-1-first side wall; 31-2-second side wall; 31-3-bottom wall;
  • Figure 1 is a schematic diagram of the structure of an electric valve in an embodiment of the present invention
  • Figure 2 is a schematic diagram of the assembly of the rotor shaft, transmission member, elastic member and input gear in Figure 1
  • Figure 3 is Figure 1 The assembly diagram of the middle transmission part and the elastic part
  • FIG. 4 is a schematic diagram of the structure of the transmission part in an embodiment of the present invention.
  • the present invention provides an electric valve, which comprises a valve body part and a coil, wherein the valve body part is mainly used for flow adjustment, and the coil part provides driving force.
  • the electric valve of the present invention includes a valve body, a valve seat, a coil, a rotor component 20, a transmission member 22 and a gear reduction mechanism.
  • the valve seat 10 is provided with a first port and a second port.
  • the valve seat 10 is provided with a valve core.
  • the first port and the second port are connected through a through hole of the valve core.
  • the first port and the second port are usually used for installation.
  • the external connection pipe 11a is installed at the first port
  • the external connection pipe 12a is installed at the second port.
  • the first port can be the refrigerant inlet or the refrigerant outlet.
  • the second port is the refrigerant outlet; when the first port is the refrigerant outlet, the second port Imported for refrigerant.
  • the external refrigerating medium flows from the external pipe of the first port (or the second port) to the inside of the valve seat 10, and flows out from the external pipe of the second port (or the first port) after passing through the valve core.
  • the rotor component 20 includes a rotor shaft 21, a transmission member 22 is fixedly connected to the transmission end of the rotor shaft 21, and the rotor shaft 21 drives the input gear 31 of the gear reduction mechanism to rotate through the transmission member 22.
  • the main function of the gear reduction mechanism is to reduce the speed to obtain a suitable torque to drive the valve stem inside the valve body to rotate.
  • the valve stem can drive the valve core to rotate to realize the opening and closing of the electric valve and the flow adjustment function.
  • the gear reduction mechanism can have many forms. This article takes the gear reduction mechanism as a planetary gear mechanism as an example, and continues to introduce the technical solutions and technical effects. Those skilled in the art should understand that the technical solutions in this article are also applicable to other types of gear reductions. mechanism.
  • the transmission member 22 can be a transmission plate, and of course, other structural forms that play a transmission role are not excluded.
  • the electric valve in the present invention further includes an elastic member 23, and the transmission member 22 elastically contacts the input gear 31 through the elastic member 23 to realize power transmission. That is, an elastic member 23 is provided on the contact surface of the transmission member 22 and the input gear 31, and the transmission member 22 elastically drives the input gear 31 to rotate through the elastic member 23.
  • the coil When the electric valve in the present invention is working, the coil is energized to drive the rotor component to rotate, and the rotor shaft 21 drives the transmission member 22 to rotate synchronously.
  • the transmission member 22 elastically contacts the input gear 31 through the elastic member 23, and then transmits the rotational power to the input gear 31.
  • the input gear 31 transmits power to the valve stem through the transmission of the gears in the gear reduction mechanism, so as to realize the rotation of the valve stem and realize the opening and closing of the electric valve and the function of flow adjustment.
  • the transmission member 22 and the input gear 31 in the present invention are elastically contacted by the elastic member 23 to achieve power transmission, which greatly reduces the transmission noise and reduces the electric valve. Transmission noise is polluted, and it is conducive to the application of electric valves in environments with harsher noise requirements, and improves the flexibility of the use of electric valves.
  • one of the transmission member 22 and the input gear 31 is provided with a groove portion, and the other is provided with a transmission portion inserted into the groove portion, and the transmission member 22 is matched with the groove portion through the transmission portion.
  • the input gear 31 is driven to rotate, and the elastic member 23 is disposed at least on the abutting contact surface of one of the transmission portion and the groove portion.
  • the transmission member 22 can be provided with a groove portion or a transmission portion. Accordingly, the input gear 31 is provided with a transmission portion that is inserted into the groove portion of the transmission member 22 or is matched with the transmission portion of the transmission member 22 Insert the groove part.
  • a transmission part is provided on the transmission member 22 and a groove part is provided on the input gear 31 as an example to continue to introduce the technical solution.
  • the transmission member 22 may include a base portion 221 and a transmission portion 222 extending outward from the base portion 221, and the base portion 221 is provided with a fixing hole 22 b for fixed connection with the rotor shaft 21.
  • the transmission part 222 includes a side wall, and the shape, extension length and thickness of the transmission part 222 can be set reasonably according to the specific application environment. The fact that the above parameters are not disclosed herein does not prevent those skilled in the art from understanding and implementing the technical solution.
  • the upper end of the input gear 31 herein is provided with a groove portion 31a, and the groove portion 31a may open upward, of course, it may also have other structural forms.
  • a gear portion is provided at the lower end of the input gear 31, and the input gear 31 meshes with an adjacent transmission gear to transmit power through the gear portion.
  • the transmission portion 222 at least partially extends into the groove portion 31a.
  • the groove portion 31a includes a groove wall portion 31a1 capable of abutting against the side wall portion of the transmission portion 222, and the elastic member 23 is disposed between the side wall portion and the groove wall portion 31a1 .
  • the input gear 31 is provided with a groove portion 31a at the upper end and a gear portion at the lower end is conducive to the overall structural layout of the components of the electric valve, minimizes the volume of the electric valve, and improves its application flexibility.
  • the elastic member 23 may be an annular elastic ring, and the annular elastic ring may be an O-ring or a rectangular ring. Of course, it may also be of other types of ring structures.
  • the side walls on both sides of the transmission part are provided with inwardly recessed accommodating parts 22a, the annular elastic ring is sleeved on the accommodating part 22a, and the shape of the accommodating part 22a can be adapted to the inner ring of the annular elastic ring.
  • Positioning the annular elastic ring on the transmission member 22 has relatively high positioning reliability and is convenient for assembly and maintenance.
  • the opening of the groove portion 31a of the input gear 31 can be upward. It should be noted that the direction shown in FIG. 1 is used as a reference for description here, which is only to achieve the concise description of the technical solution.
  • the groove portion 31a includes two side walls and a bottom wall 31a2.
  • the two side walls are provided with groove wall portions 31a1.
  • the two side walls are respectively defined as a first side wall and a second side wall.
  • the first side wall and the second side wall are both A groove wall portion 31a1 is provided.
  • the bottom wall 31a2 has a shape that matches the peripheral wall of the outer ring of the annular elastic ring. Taking the annular elastic ring as an example of an O-ring, the bottom wall 31a2 may form an arc structure to fit the outer ring of the annular elastic ring.
  • the groove portion of the input gear 31 opens upward, and includes two side walls and a bottom wall.
  • the two side walls are provided with groove wall portions.
  • the corresponding positions of the bottom wall 31a2 and the groove wall portion 31a1 are formed with positioning
  • the cavity of the elastic member 23 is installed. In this embodiment, the elastic member 23 is mounted on the input gear 31.
  • FIG. 5 is a schematic diagram of the assembly of the rotor shaft, the transmission member, the elastic member and the input gear in the second embodiment of the present invention
  • FIG. 5 shows the structure diagram of the elastic member in the second specific embodiment.
  • the elastic member 23A includes a first arm portion 231A, a second arm 232A and a connecting portion 233A connecting the first arm portion (231A) and the second arm (232A), and a connecting portion 233A of the input gear 31 oppositely arranged.
  • the groove portion 31a opens upward and includes a first side wall 31-1, a second side wall 31-2 and a bottom wall 31-3.
  • the first side wall 31-1 and the second side wall 31-2 serve as the groove wall portion 31 a 1
  • the first arm portion 231A elastically abuts against the first side wall 31-1
  • the second arm portion 232A elastically abuts against the second side wall 31-2
  • the corresponding position of the bottom wall 31-3 has a shape matching the connecting portion 233A .
  • the elastic member may have a U-shaped structure, which has a simple structure and is convenient for the installation of the transmission member.
  • first side wall 31-1 includes a first axial groove portion
  • second side wall 31-2 includes a second axial groove portion
  • the first arm portion 231A is embedded in the first axial groove portion
  • the second The arm 232A is fitted into the second axial groove.
  • the elastic member is directly embedded in the axial groove of the input gear, which increases the stability of the installation position of the elastic member and improves the reliability of the transmission operation.
  • FIG. 6 is a schematic diagram of the assembly of the rotor shaft, the transmission member, the elastic member and the input gear in the third embodiment of the present invention
  • FIG. 6 shows another specific structure of the elastic member.
  • the elastic member may be an elastic gasket 23B, and the elastic gasket 23B is adhered to the abutting contact surface of the side wall portion or the groove wall portion.
  • the transmission member 22 may include two transmission parts 222, which are symmetrically arranged with respect to the central axis of the fixing hole 22b of the base part 221.
  • the upper end of the input gear 31 is provided with two groove parts, respectively It is used to cooperate with two transmission parts 222, and an elastic member 23 is provided between the side wall part and the groove wall part of each transmission part 222.
  • the transmission member 22 is provided with two symmetrical transmission parts, which can improve the stability of power transmission.
  • the input gear 31 in each of the foregoing embodiments may include a large-diameter portion 311 and a small-diameter portion 312 that are coaxially arranged.
  • the large-diameter portion 311 is provided with a mounting hole 31b that is coaxial with the rotor shaft 21.
  • the base portion 221 of the member 22 is at least partially located inside the mounting hole 31b.
  • This article provides an embodiment in which the base portion 221 of the transmission member 22 is completely located inside the mounting hole 31b.
  • the peripheral wall of the mounting hole 31b is provided with a groove portion with an upward opening, and the outer peripheral wall of the small-diameter portion 312 is provided with a gear portion.
  • the planetary gear mechanism may include a gear ring 32, a sun gear, and a planetary gear assembly.
  • the input gear 31 is a sun gear.
  • the gear ring 32 is fixed to the valve body.
  • the gear ring includes a top wall 321 and a top wall 321 downward.
  • the extended peripheral wall 322 encloses a cavity with a downward opening.
  • the peripheral wall 322 is provided with an inner meshing section, and the inner meshing section of the gear ring 32 meshes with the planet gears at various levels correspondingly.
  • the top wall of the gear ring 32 is provided with a through hole.
  • the small diameter portion 312 of the sun gear penetrates the through hole of the top wall and extends into the cavity.
  • the step surface between the large diameter portion 311 and the small diameter portion 312 is rotatably supported on the top of the gear ring. The outside of the wall.
  • the number of planetary gear assemblies can be determined according to the actual application of the electric valve, and can be one, or two or more than two.
  • the planetary gear assembly includes a planetary carrier and at least two planetary gears.
  • the planetary carrier mainly supports the planetary gears and transmits power.
  • the main structure of the planetary carrier can take many forms, which are not specifically limited herein.

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

Abstract

一种电动阀，包括阀体、转子部件(20)、传动件(22)和齿轮减速机构，转子部件(20)包括转子轴(21)，传动件(22)固定连接于转子轴(21)的传动端部，转子轴(21)通过传动件(22)驱动齿轮减速机构的输入齿轮(31)转动；还包括弹性件(23)，传动件(22)通过弹性件(23)与输入齿轮(31)弹性接触以实现动力传递。该电动阀的传动件与输入齿轮通过弹性件弹性接触以实现动力的传递，大大降低了传动噪音，降低电动阀传动噪声污染，并且有利于电动阀应用于对噪音要求比较苛刻的环境，提高电动阀的使用灵活性。

Description

一种电动阀
本申请要求2020年02月28日提交中国专利局、申请号为202010129405.0、发明名称为“一种电动阀”的中国专利申请的优先权，其中，该专利所记载的全部内容通过引用结合在本申请中
技术领域
本发明涉及流体控制技术领域，特别涉及一种电动阀。
背景技术
电动阀用于流体控制系统，用来控制流体的通断或流量。
工作时，电动阀的线圈通电驱动转子旋转，通过转子带动减速齿轮机构并放大输出扭矩，带动阀杆旋转，以带动阀芯动作，使阀芯开启、关闭或调节流量。
该电动阀转子轴转动时带动传动部件转动，传动部件带动太阳轮转动；通常，电动阀的电机选用步进电机结构，转子进行的是间歇式转动，因此在工作时，传动部件与太阳轮之间会有间歇式的撞击，使得电动阀在运转过程中会产生噪音。
背景因此，如何降低背景技术中电动阀工作时的噪音，是本领域内技术人员目前需要解决的技术问题。
发明内容
本发明提供一种电动阀，包括阀体、转子部件、传动件和齿轮减速机构，所述转子部件包括转子轴，所述传动件固定连接于所述转子轴的传动端部，所述转子轴能够带动所述传动件转动，所述传动件与所述齿轮减速机构的输入齿轮其中一者设置有凹槽部，另一者设置有插入所述凹槽部内部的传动部，所述传动件通过所述传动部与所述凹槽部的配合带动所述输入齿轮转动，所述电动阀还包括弹性件，所述弹性件至少设置于所述传动部与所述凹槽部其中一者的抵靠接触面。
与背景技术中传动部件与输入齿轮直接碰撞传动动力相比，本发明中的传动件与输入齿轮其中一者设置有凹槽部，另一者设置有插入凹槽部内部的传动部，传动件通过传动部与凹槽部的配合带动输入齿轮转动，电动 阀还包括弹性件，弹性件至少设置于传动部与凹槽部其中一者的抵靠接触面，降低了电动阀工作时的噪音。
附图说明
图1为本发明一种实施例中电动阀的结构示意图；
图2为图1中转子轴、传动件、弹性件及输入齿轮的组装示意图；
图3为图1中传动件与弹性件的组装示意图；
图4为本发明一种实施例中传动件的结构示意图；
图5为本发明第二种实施例中转子轴、传动件、弹性件及输入齿轮的组装示意图；
图6为本发明第三种实施例中转子轴、传动件、弹性件及输入齿轮的组装示意图。
其中，图1至图6中：
10-阀座；11a-外部接管；12a-外部接管；
20-转子部件；21-转子轴；22-传动件；22a-容纳部；22b-固定孔；221-基体部；222-传动部；23-弹性件；
31-输入齿轮；311-大径部；312-小径部；31a-凹槽部；31a1-槽壁部；31a2-底壁；31b-安装孔；32-齿轮圈；321-顶壁；322-周壁；31-1-第一侧壁；31-2-第二侧壁；31-3-底壁；
231A-第一臂部；232A-第二臂部；233A-连接部。
具体实施方式
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施例对本发明作进一步的详细说明。
请参考图1至图4，图1为本发明一种实施例中电动阀的结构示意图；图2为图1中转子轴、传动件、弹性件及输入齿轮的组装示意图；图3为图1中传动件与弹性件的组装示意图；图4为本发明一种实施例中传动件的结构示意图。
本发明提供了一种电动阀，该电动阀包括阀体部分和线圈，其中阀体 部分主要用于流量调节，线圈部分提供驱动力。
本发明的电动阀包括阀体、阀座、线圈、转子部件20、传动件22和齿轮减速机构。其中阀座10的开设有第一口和第二口，阀座10内部设置有阀芯，第一口和第二口通过阀芯的贯通孔连通，第一口和第二口通常用于安装外部接管，如图1所示，第一口安装有外部接管11a，第二口安装有外部接管12a。第一口可以为制冷剂进口，也可以为制冷剂出口，相应地，当第一口为制冷剂进口时，第二口为制冷剂出口；当第一口为制冷剂出口时，第二口为制冷剂进口。
外部制冷介质自第一口(或第二口)的外部接管流至阀座10内部，经阀芯后，由第二口(或第一口)的外部接管流出。
转子部件20包括转子轴21，传动件22固定连接于转子轴21的传动端部，转子轴21通过传动件22带动齿轮减速机构的输入齿轮31转动。其中齿轮减速机构主要作用是降低速度以获得合适的扭矩驱动阀体内部的阀杆转动。阀杆能够带动阀芯转动，以实现电动阀的开闭及流量调节功能。齿轮减速机构的形式可以有多种，本文以齿轮减速机构为行星齿轮机构为例，继续介绍技术方案和技术效果，本领域内技术人员应当理解，本文中技术方案同样适用于其他类型的齿轮减速机构。
通常传动件22可以为传动板，当然也不排除其他起到传动作用的结构形式。
本发明中的电动阀还包括弹性件23，传动件22通过弹性件23与输入齿轮31弹性接触以实现动力传递。即传动件22和输入齿轮31的接触面上设置有弹性件23，传动件22通过弹性件23弹性驱动输入齿轮31转动。
本发明中的电动阀工作时，线圈通电驱动转子部件转动，转子轴21带动传动件22同步转动，传动件22通过弹性件23与输入齿轮31弹性接触，进而将转动动力传递至输入齿轮31，输入齿轮31通过齿轮减速机构中各齿轮的传递将动力传递至阀杆，以实现阀杆的转动，实现电动阀的开闭及流量调节功能。
与背景技术中传动件22与输入齿轮31直接碰撞传动动力相比，本发明中的传动件22与输入齿轮31通过弹性件23弹性接触以实现动力的传递，大大降低了传动噪音，降低电动阀传动噪声污染，并且有利于电动阀应用 于对噪音要求比较苛刻的环境，提高电动阀的使用灵活性。
在一种具体实施方式中，传动件22和输入齿轮31其中一者设置有凹槽部，另一者设置有插入凹槽部内部的传动部，传动件22通过传动部与凹槽部的配合驱动输入齿轮31转动，弹性件23至少设置于传动部与凹槽部其中一者的抵靠接触面。
也就是说，传动件22上可以设置凹槽部，也可以设置传动部，相应地输入齿轮31上设置与传动件22的凹槽部配合插入的传动部，或者与传动件22上传动部配合插入的凹槽部。
本文以传动件22上设置传动部，输入齿轮31上设置凹槽部为例继续介绍技术方案。
具体地，传动件22可以包括基体部221和从基体部221向外延伸的传动部222，基体部221设置有固定孔22b，用于与转子轴21固定连接。传动部222包括侧壁部，传动部222的形状、伸出长度和厚度均可以通过具体应用环境合理设置，本文不公开上述参数并不妨碍本领域内技术人员理解和实施该技术方案。
本文中的输入齿轮31的上端设置有凹槽部31a，凹槽部31a可以开口朝上，当然也可以为其他结构形式。输入齿轮31的下端设有齿轮部，输入齿轮31通过齿轮部与相邻的传动齿轮啮合传递动力。传动部222至少部分伸入凹槽部31a内部，凹槽部31a包括能够与传动部222的侧壁部抵靠的槽壁部31a1，弹性件23设置于侧壁部和槽壁部31a1之间。
上述实施例中，输入齿轮31上端设置凹槽部31a，下端设置齿轮部有利于电动阀各零部件整体结构布局，尽量降低电动阀体积，提高其应用灵活性。
上述各实施例中，弹性件23可以为环形弹性圈，环形弹性圈可以为O型圈，也可以为矩形圈，当然也可以为其他形式圈结构。传动部两侧的侧壁部均设置有向内凹陷的容纳部22a，环形弹性圈的套设于容纳部22a，容纳部22a的形状可以与环形弹性圈的内圈相适配。
将环形弹性圈定位于传动件22上，定位可靠性比较高，且便于装配和维修。
如上所述，输入齿轮31的凹槽部31a开口可以向上，需要说明的是， 此处以图1所示方向为参考描述，仅是为了实现技术方案描述的简洁。
凹槽部31a包括两个侧壁和底壁31a2，两侧壁设置有槽壁部31a1，两侧壁分别定义为第一侧壁和第二侧壁，第一侧壁和第二侧壁均设置有槽壁部31a1。底壁31a2具有与环形弹性圈的外圈周壁配合的形状。以环形弹性圈为O型圈例，底壁31a2部分可以形成弧形结构，以与环形弹性圈的外圈相适配。在另一种具体实施方式中，输入齿轮31的凹槽部开口向上，包括两个侧壁和底壁，两侧壁设置有槽壁部，底壁31a2相应位置和槽壁部31a1形成有定位安装弹性件23的凹腔。该实施方式中弹性件23安装于输入齿轮31。
请参考图5，图5为本发明第二种实施例中转子轴、传动件、弹性件及输入齿轮的组装示意图；图5中给出了弹性件第二种具体实施方式中的结构图。
在第二种具体实施例中，弹性件23A包括相对设置的第一臂部231A、第二臂232A及连接第一臂部(231A)和第二臂(232A的连接部233A，输入齿轮31的凹槽部31a开口向上，包括第一侧壁31-1、第二侧壁31-2和底壁31-3，第一侧壁31-1、第二侧壁31-2作为槽壁部31a1，第一臂部231A与第一侧壁31-1弹性抵接，第二臂部232A与第二侧壁31-2弹性抵接，底壁31-3相应位置具有与连接部233A配合的形状。
该实施例中弹性件可以为U型结构，结构简单，便于传动件的安装。
进一步地，第一侧壁31-1包括第一轴向槽部，第二侧壁31-2包括第二轴向槽部，第一臂部231A嵌入所述第一轴向槽部，第二臂部232A嵌入第二轴向槽部。
该实施例中弹性件直接嵌入输入齿轮的轴向槽部内部，增加弹性件安装位置的稳定性，提高传动工作的可靠性。
请参考图6，图6为本发明第三种实施例中转子轴、传动件、弹性件及输入齿轮的组装示意图；图6中示出了弹性件的另一种具体结构。
在第三种具体实施方式中，弹性件可以为弹性垫片23B，弹性垫片23B粘接于侧壁部或槽壁部的抵靠接触面。
以上三种具体实施例中弹性件的结构均属于同一发明思路。
上述各实施例中传动件22可以包括两个传动部222，两传动部222关 于基体部221的固定孔22b的中心轴线对称设置，相应地，输入齿轮31的上端设置有两个凹槽部分别用于与两个传动部222配合，每一个传动部222的侧壁部与槽壁部之间均设置有弹性件23。
传动件22设置有对称的两个传动部，可以提高动力传动的稳定性。
在一种具体实施例中，上述各实施例中的输入齿轮31可以包括同轴设置的大径部311和小径部312，大径部311设置有与转子轴21同轴的安装孔31b，传动件22的基体部221至少部分位于安装孔31b内部，本文给出了传动件22的基体部221完全位于安装孔31b内部的实施方式。安装孔31b的周壁开设有开口向上的凹槽部，小径部312的外周壁设置有齿轮部。
上述各实施方式中，行星齿轮机构可以包括齿轮圈32、太阳轮和行星轮组件，输入齿轮31为太阳轮，齿轮圈32固定于阀体，齿轮圈包括顶壁321和自顶壁321向下延伸的周壁322，周壁322围成开口向下的腔体，周壁322设置有内啮合段，齿轮圈32的内啮合段与各级行星轮对应啮合。
齿轮圈32的顶壁设置有通孔，太阳轮的小径部312穿过顶壁的通孔伸入腔体内部，大径部311与小径部312之间的台阶面转动支撑于齿轮圈的顶壁外侧。
行星轮组件的数量可以根据实际应用的电动阀而定，可以为一个，也可以为两个或者两个以上。行星轮组件包括行星架和至少两个行星轮，行星架主要对行星轮起到支撑作用以及传动动力的作用，行星架的主要结构可以由多种形式，本文不做具体限定。
以上对本发明所提供的一种电动阀进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种电动阀，其特征在于，包括阀体、转子部件(20)、传动件(22)和齿轮减速机构，所述转子部件(20)包括转子轴(21)，所述传动件(22)固定连接于所述转子轴(21)的传动端部，所述转子轴(21)能够带动所述传动件(22)转动，所述传动件(22)与所述齿轮减速机构的输入齿轮(31)其中一者设置有凹槽部，另一者设置有插入所述凹槽部内部的传动部，所述传动件(22)通过所述传动部与所述凹槽部的配合带动所述输入齿轮(31)转动，所述电动阀还包括弹性件(23)，所述弹性件(23)至少设置于所述传动部与所述凹槽部其中一者的抵靠接触面。
  2. 如权利要求1所述的电动阀，其特征在于，所述传动件(22)包括基体部(221)和从所述基体部(221)向外延伸的所述传动部(222)，所述传动部(222)包括侧壁部，所述输入齿轮(31)的上端设置有所述凹槽部(31a)，下端设有齿轮部，所述传动部(222)至少部分伸入所述凹槽部(31a)内部，所述凹槽部(31a)包括能够与所述侧壁部抵靠的槽壁部，所述弹性件(23)设置于所述侧壁部和所述槽壁部之间。
  3. 如权利要求2所述的电动阀，其特征在于，所述弹性件(23)为环形弹性圈，所述传动部(222)两侧的所述侧壁部均设置有向内凹陷的容纳部(22a)，所述环形弹性圈套设所述容纳部(22a)。
  4. 如权利要求3所述的电动阀，其特征在于，所述输入齿轮(31)的凹槽部(31a)开口向上，包括第一侧壁、第二侧壁和底壁(31a2)，所述第一侧壁、所述第二侧壁设置有所述槽壁部(31a1)，所述底壁相应位置具有与所述环形弹性圈的外圈周壁配合的形状。
  5. 如权利要求2所述的电动阀，其特征在于，所述弹性件(23A)包括相对设置的第一臂部(231A)、第二臂部(232A)及连接所述第一臂部(231A)和所述第二臂部(232A)的连接部(233A)，所述输入齿轮(31)的凹槽部(31a)开口向上，包括第一侧壁(31-1)、第二侧壁(31-2)和底壁(31-3)，所述第一侧壁(31-1)、所述第二侧壁(31-2)作为所述槽壁部(31a1)，所述第一臂部(231A)与所述第一侧壁(31-1)弹性抵接，所述第二臂部(232A)与所述第二侧壁(31-2)弹性抵接，所述底壁(31-3)相应位置具有与所 述连接部(233A)配合的形状。
  6. 如权利要求5所述的电动阀，其特征在于，所述第一侧壁(31-1)包括第一轴向槽部，所述第二侧壁(31-2)包括第二轴向槽部，所述第一臂部(231A)嵌入所述第一轴向槽部，所述第二臂部(232A)嵌入所述第二轴向槽部。
  7. 如权利要求2所述的电动阀，其特征在于，所述弹性件为弹性垫片(23B)，所述弹性垫片(23B)粘接于所述侧壁部或所述槽壁部的抵靠接触面。
  8. 如权利要求2至7任一项所述的电动阀，其特征在于，所述传动件(22)包括两个所述传动部(222)，两所述传动部(222)关于所述基体部的固定孔(22b)的中心轴线对称设置，相应地，所述输入齿轮(31)的上端设置有两个凹槽部(31a)，分别用于与两个所述传动部(222)配合，每一个所述传动部(222)的侧壁部与所述槽壁部(31a1)之间均设置有所述弹性件(23)。
  9. 如权利要求8所述的电动阀，其特征在于，所述输入齿轮(31)包括同轴设置的大径部(311)和小径部(312)，所述大径部(311)设置有与所述转子轴(21)同轴的安装孔，所述传动件(22)的基体部(221)至少部分位于所述安装孔内部，所述安装孔的周壁开设有开口向上的所述凹槽部(31a)，所述小径部(312)的外周壁设置有所述齿轮部。
  10. 如权利要求9所述的电动阀，其特征在于，所述齿轮减速机构为行星齿轮机构，所述行星齿轮机构包括齿轮圈(32)、太阳轮和行星轮组件，所述输入齿轮(31)为太阳轮，所述齿轮圈(32)支撑固定于所述阀体，所述齿轮圈(32)包括顶壁(321)和自所述顶壁(321)向下延伸的周壁，所述周壁围成开口向下的腔体，所述周壁设置有内啮合段，所述顶壁(321)设置有通孔，所述太阳轮的小径部穿过所述顶壁(321)的通孔伸入所述腔体内部，所述大径部与小径部之间的台阶面转动支撑于所述齿轮圈(32)的顶壁外侧。
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