WO2020259458A1 - 三通水阀 - Google Patents

三通水阀 Download PDF

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Publication number
WO2020259458A1
WO2020259458A1 PCT/CN2020/097567 CN2020097567W WO2020259458A1 WO 2020259458 A1 WO2020259458 A1 WO 2020259458A1 CN 2020097567 W CN2020097567 W CN 2020097567W WO 2020259458 A1 WO2020259458 A1 WO 2020259458A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve core
way water
port
sealing
Prior art date
Application number
PCT/CN2020/097567
Other languages
English (en)
French (fr)
Inventor
俞舟
叶小红
林元阳
Original Assignee
浙江盾安人工环境股份有限公司
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
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to US17/433,600 priority Critical patent/US20220146003A1/en
Priority to JP2021546231A priority patent/JP7321278B2/ja
Priority to KR1020217027833A priority patent/KR20210119516A/ko
Priority to EP20832521.7A priority patent/EP3919790A4/en
Publication of WO2020259458A1 publication Critical patent/WO2020259458A1/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
    • 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
    • F16K11/087—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 spherical plug
    • 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
    • F16K11/087—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 spherical plug
    • F16K11/0873—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 spherical plug the plug being only rotatable around one spindle
    • F16K11/0876—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 spherical plug the plug being only rotatable around one spindle one connecting conduit having the same axis as the spindle
    • 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
    • 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
    • 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
    • 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
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • 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
    • F16K5/08—Details
    • 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
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using 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
    • F16K31/02—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
    • F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor

Definitions

  • This application relates to the technical field of flow control, and in particular to a three-way water valve.
  • the valve seat of the three-way water valve has three connection ports, one of which is the inlet and the other two are the outlets.
  • the valve core in the three-way water valve rotates in the valve seat, the valve core can interact with the inlet on the valve seat.
  • the passage between the two outlets is selectively switched to realize the flow control when the three-way water valve is working.
  • the shaft used to drive the valve core to rotate in the valve seat and the valve core are usually set in a split structure. Specifically, a groove is opened on the valve core, and the shaft is inserted into the valve core correspondingly In the groove of the valve and the valve core is circumferentially limited, so that when the three-way water valve is working, the actuator drives the valve core to rotate in the valve seat through the shaft.
  • the above-mentioned three-way water valve works, it can switch the passage between the inlet and the two outlets on the valve seat.
  • the shaft is inserted into the groove of the valve core and cooperates with the valve core to realize the valve core in the valve
  • the rotation in the seat that is to say, there is a clearance fit between the shaft and the valve core, which makes the connection strength between the shaft and the valve core weak, and during long-term use, the part where the shaft and the valve core are connected is prone to wear. Thereby reducing the rotation accuracy of the valve core.
  • a three-way water valve which includes a valve seat, a valve core, a valve cover, and an actuator.
  • the valve core is provided in the valve seat, the valve cover is provided on the valve seat, the actuator is fixed on the valve cover, one end of the valve core is provided with a rotating shaft, the rotating shaft and The valve core is integrally arranged, the other end of the rotating shaft is rotatably connected with the driving part, and the driving part can limit the rotating shaft in a circumferential direction.
  • the rotation shaft and the valve core are integrated to strengthen the connection strength between the rotation shaft and the valve core and avoid the connection between the rotation shaft and the valve core when they are installed separately
  • the parts are worn, which affects the rotation accuracy of the valve core; at the same time, the integral arrangement can ensure that the valve core can rotate with the rotating shaft at the same time, so as to improve the rotation accuracy of the valve core.
  • a limiting portion is provided on the rotating shaft, and a limiting matching portion is provided on the driving portion.
  • the limiting portion can be connected to the limiting portion.
  • a positioning convex portion is provided on the outer side wall of the rotating shaft to form the limiting portion, and a positioning groove is opened on the driving portion to form the limiting matching portion.
  • a guiding structure is provided between the valve core and the valve seat, and between the valve core and the valve cover, and a guiding structure that cooperates with the guiding structure is provided on the valve core. unit. In this way, when the valve core rotates, the cooperation of the guide structure and the guide portion can guide the rotation of the valve core, so as to reduce the friction generated when the valve core rotates, and extend The service life of the valve core.
  • the guiding structure is a sealing ring, and the sealing ring is in sliding connection with the valve core.
  • the guiding structure is a bearing.
  • the bottom surface of the valve core is provided with a first connection port
  • the side surface of the valve core is provided with a second connection port
  • the first connection port is in communication with the second connection port
  • the cross section of the second connection port is square
  • the valve seat is provided with a first valve port and a second valve port
  • the valve core can be simultaneously connected with the valve through the second connection port.
  • the first valve port and the second valve port are in communication.
  • both the first valve port and the second valve port are provided with a first sealing element and a second sealing element, so that the valve core and the valve seat are assembled in a sealed manner. In this way, the sealing performance between the valve core and the valve seat is enhanced.
  • the first sealing element is a gasket
  • the second sealing element is an O-ring
  • the gasket is provided on the valve seat
  • the O-ring is embedded in the The sealing gasket abuts on one end surface of the valve seat, and the sealing gasket abuts against the valve core on the side facing away from the O-ring. In this way, the structure is simple.
  • the first sealing member is disposed close to the valve core, and one end of the first sealing member close to the first valve port or the second valve port is provided with a first sealing protrusion,
  • the first sealing protrusion can abut the valve core.
  • Figure 1 is an exploded view of the structure of the three-way water valve provided by this application;
  • Figure 2 is a cross-sectional view of the three-way water valve provided by this application.
  • FIG. 3 is a schematic structural diagram of the three-way water valve provided by this application when the first connecting branch pipe and the second connecting branch pipe are in communication;
  • FIG. 4 is a schematic structural diagram of the three-way water valve provided by this application when the first connecting branch pipe is connected with the second connecting branch pipe and the third connecting branch pipe at the same time;
  • FIG. 5 is a schematic diagram of the structure when the first connecting branch pipe and the third connecting branch pipe of the three-way water valve provided by this application are in communication;
  • Figure 6 is a schematic structural diagram of the valve seat of the three-way water valve provided by this application.
  • Figure 7 is a schematic diagram of the assembly of the valve core and the rotating shaft of the three-way water valve provided by this application;
  • Fig. 8 is a schematic diagram of the assembly of the first sealing element and the second sealing element in one of the embodiments provided by this application.
  • the three-way water valve 100 provided by the present application is used to switch the pipeline in the pipeline system.
  • the three-way water valve 100 is used in an automobile thermal management system.
  • the three-way water valve 100 can also be used in pipeline systems such as heating, water supply and drainage.
  • the three-way water valve 100 includes a valve seat 10, a valve core 20 arranged in the valve seat 10, a valve cover 30 arranged on the valve seat 10, and a valve cover 30 fixed on the valve seat 10
  • the actuator 40 on the cover 30.
  • the actuator 40 can drive the valve core 20 to rotate in the valve seat 10 so as to realize the flow control of the three-way water valve 100 during operation.
  • the bottom surface of the valve core 20 is provided with a first connection port 21, the side surface of the valve core 20 is provided with a second connection port 22, and the first connection port 21 is in communication with the second connection port 22.
  • a first connecting branch pipe 11 is connected to the bottom of the valve seat 10, a second connecting branch pipe 12 and a third connecting branch pipe 13 are connected to the side wall of the valve seat 10, and the first connecting branch pipe 11 is always connected. It communicates with the first connecting port 21 of the valve core 20, and the second connecting branch pipe 12 and/or the third connecting branch pipe 13 can communicate with the second connecting port 22 of the valve core 20.
  • the first connecting branch pipe 11 is used as an inlet
  • the second connecting branch pipe 12 and the third connecting branch pipe 13 are used as outlets.
  • the first connecting branch pipe 11 can be used as an outlet
  • the second One of the connecting branch pipe 12 and the third connecting branch pipe 13 can be used as an inlet.
  • the three-way water valve of the present application can realize the following three passage situations: the first connection The branch pipe 11 communicates with the second connecting branch pipe 12 through the first connecting port 21 and the second connecting port 22 of the valve core 20; the second connecting branch pipe 12 passes through the first connecting port 21, The second connecting port 22 is in communication with the third connecting branch pipe 13; the first connecting branch pipe 11 is connected to the second connecting branch pipe 12 and the second connecting branch pipe 12 through the first connecting port 21 and the second connecting port 22 of the valve core 20
  • the third connecting branch pipe 13 is connected, that is, the first connecting branch pipe 11 is in communication with the second connecting branch pipe 12 and the third connecting branch pipe 13, so as to realize that the three-way water valve 100 can pass through the three-way water valve 100 when working.
  • the upper path is switched to achieve flow control.
  • the cross section of the second connection port 22 of the valve core 20 is square. Since the cross section of the valve core 20 is square, the cross section of the second connection port 22 is the same as that of the valve core 20. The cross section is the same, so that the caliber of the second connection port 22 on the valve core 20 can be maximized, and the flow area of the inner cavity of the valve core 20 is fully utilized to increase the flow rate. In other embodiments, the cross section of the second connection port 22 can be set to other shapes according to the cross section of the valve core 20.
  • the valve seat 10 is provided with a first valve port 14 and a second valve port 15, the second connecting branch pipe 12 is connected to the first valve port 14, the third connecting branch pipe 13 is connected to the second valve port 15, and the valve core 20 passes through
  • the second connecting port 22 can communicate with the first valve port 14 and the second valve port 15 at the same time, so as to ensure that the first connecting branch pipe 11 on the valve seat 10 is simultaneously connected with the second connecting branch pipe 12 and the third connecting branch pipe 13 At this time, the second connecting branch pipe 12 and the third connecting branch pipe 13 have a large enough flow to be exported outwards, so as to realize the full flow of the three connecting branch pipes on the valve seat 10; at the same time, the valve core 20 is on the first
  • the arrangement of the two connecting ports 22 can fully fill the injection molded product during injection molding, so as to improve the overall injection molding process of the valve core 20.
  • Both the first valve port 14 and the second valve port 15 are provided with a first sealing member 201 and a second sealing member 202 to make the valve core 20 and the valve seat 10 hermetically connected, thereby The overall internal leakage prevention and sealing of the three-way water valve 100 is realized.
  • the first sealing member 201 is a sealing gasket 102
  • the second sealing member 202 is an O-ring 103
  • the sealing gasket 102 is provided on the valve seat 10
  • the sealing gasket 102 is far from the end of the valve core 20.
  • the end surface is provided with a sealing groove 105
  • the O-ring 103 is embedded in the sealing groove 105
  • the end surface of the sealing gasket 102 away from the O-ring 103 serves as a sealing surface to abut against the valve seat 10, so as to realize the valve seat 10 and the valve seat 10
  • the assembly and sealing between the valve cores 20 are described.
  • the assembling and sealing between the valve seat 10 and the valve core 20 is not limited to the above-mentioned gasket 102 and O-ring 103, and those skilled in the art can also adopt mutual matching according to the needs of use.
  • the other first sealing element 201 and the second sealing element 202 for example, the first sealing element 201 is made of other sealing materials with lower hardness, which are arranged on the valve seat 10, and the first sealing element
  • the member 201 is made of other materials with wear resistance and low friction coefficient, and is attached to the first sealing member 201.
  • the first sealing member 201 is disposed close to the valve core 20 relative to the second sealing member 202, and the first sealing member 201 is close to the first valve port 14 or the second valve port 15.
  • a first sealing protrusion 203 is provided at one end of the valve, and the first sealing protrusion 203 can abut against the valve core 20. It can be understood that the first sealing protrusion 203 can increase the interaction force of the first sealing member 201 and the valve core 20 when abutting and fitting, thereby ensuring the first sealing member 201 and the second sealing member 202 The sealing effect of the assembly and sealing of the valve core 20 and the valve seat 10.
  • the second sealing member 202 is provided with a second sealing convex portion 205, the second sealing convex portion 205 has a first sealing groove 204 matched with the first sealing convex portion 203, and the first sealing groove 204 is located at the second sealing convex portion Inside 205, the second sealing protrusion 205 can further increase the force when the first sealing element 201 abuts the valve core 20, and the first sealing protrusion 203 is provided in the first sealing groove 204, enabling the first The sealing element 201 and the second sealing element 202 are arranged in close contact with each other, thereby enhancing the sealing performance.
  • the three-way water valve 100 of the present embodiment has an integral structure of the rotating shaft 41 for driving the valve core 20 to rotate in the valve seat 10 and the valve core 20.
  • the rotating shaft 41 and the valve core 20 may be connected as a whole by welding, or the valve core 20 and the rotating shaft 41 may be manufactured in an integrated manner.
  • valve core 20 is connected to the rotating shaft 41 as a whole, thereby improving the connection strength between the rotating shaft 41 and the valve core 20, and ensuring that the valve core 20 is in operation when the actuator 40 is working. ⁇ can rotate; and when the valve core 20 rotates in the valve seat 10, the rotation shaft 41 and the valve core 20 rotate at the same time, the rotation angle of the two is always the same, avoiding the rotation shaft 41 and the valve There is an assembly error between the cores 20, or when the shaft 41 and the valve core 20 rotate due to wear during use, there is a difference in the rotation angle of the two, so as to improve the rotation accuracy of the actuator 40 when driving the valve core 20. Furthermore, the accuracy of the flow control of the three-way water valve 100 is ensured.
  • a limiting portion 411 is provided on the rotating shaft 41
  • a limiting matching portion 421 is provided on the driving portion 42 of the actuator 40
  • the limiting portion 411 cooperates with the limiting matching portion 421. That is to say, when the rotating shaft 41 of this embodiment is assembled with the driving part 42 of the actuator 40, the assembly position of the rotating shaft 41 on the actuator 40 is determined, so that the actuator 40 can be easily installed When the valve core 20 is driven to rotate in the valve seat 10 through the rotating shaft 41, the actuator 40 controls the rotational driving of the valve core 20.
  • the three-way water valve 100 may also be provided with an angle sensor (not shown) at the position where the actuator 40 and the shaft 41 cooperate with each other, so that the actuator 40 can pass through When the rotating shaft 41 drives the valve core 20 to rotate, the angle sensor can feed back a signal, thereby further improving the precise control of the rotation angle of the valve core 20 when the valve core 20 rotates in the valve seat 10.
  • an angle sensor (not shown) at the position where the actuator 40 and the shaft 41 cooperate with each other, so that the actuator 40 can pass through
  • the angle sensor can feed back a signal, thereby further improving the precise control of the rotation angle of the valve core 20 when the valve core 20 rotates in the valve seat 10.
  • the rotating shaft 41 is provided with a positioning protrusion 412 on its outer side wall to form a limiting portion 411
  • the driving portion 42 is provided with a positioning groove 422 to form a limiting mating portion 421.
  • the positioning protrusion 412 can interact with the positioning groove 422 cooperates to realize the circumferential limit of the rotating shaft 41.
  • the position on the rotating shaft 41 of the present application that is used to cooperate with the driving portion 42 of the actuator 40 is not unique, and can be set at different positions of the driving portion 42, and the positioning protrusion 412 can be specifically set On one of the side walls of the rotating shaft 41.
  • a guide structure 104 is provided between the valve core 20 and the valve seat 10, and between the valve core 20 and the valve cover 30, respectively.
  • the valve core 20 is provided with a guide structure that cooperates with the guide structure 104
  • the part 23 is used to guide the rotation of the valve core 20. In this way, the positioning accuracy of the valve core 20 of the three-way water valve 100 of the present application in the valve seat 10 and the valve cover 30 is improved, the service life of the valve core 20 can be prolonged, and the rotation of the valve core 20 can be reduced. The action of the friction force.
  • the guiding structure 104 is a sealing ring, and the sealing ring is slidingly connected to the valve core 20. That is to say, when the valve core 20 of this embodiment is assembled and positioned in the valve seat 10 and the valve cover 30 through the sealing ring, and the actuator 40 drives the valve core 20 to rotate, the valve The core 20 can rotate relative to the seal ring.
  • the guiding structure 104 is a bearing, so as to realize the rotational connection of the valve core 20 relative to the valve seat 10 and the valve cover 30.
  • the present application does not limit the guide structure 104 to the above-mentioned two structures, and the guide structure 104 may also be other, as long as the friction force generated when the valve core 20 rotates can be reduced.
  • the rotating shaft 41 and the valve core 20 are integrated to strengthen the connection strength between the rotating shaft 41 and the valve core 20 and the service life of the valve core 20.
  • the valve core 20 is integrated with the rotating shaft 41 The arrangement can ensure that the valve core 20 and the rotating shaft 41 rotate at the same time, thereby improving the rotation accuracy when the actuator 40 drives the valve core 20 to rotate.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Sliding Valves (AREA)

Abstract

三通水阀（100），包括阀座（10），设于阀座（10）内的阀芯（20），盖设于阀座（10）的阀盖（30）；其中阀盖（30）上固定有执行器（40），执行器（40）能够驱动阀芯（20）在阀座（10）内转动；执行器（40）的驱动部（42）上可转动地连接有一转轴（41），转轴（41）的一端与阀芯（20）连接为一体，驱动部（42）能够对转轴（41）周向限位。

Description

三通水阀
相关申请
本申请要求2019年6月24日申请的，申请号为201920957520.X，发明名称为“三通水阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及流量控制技术领域，特别是涉及一种三通水阀。
背景技术
三通水阀的阀座具有三个连接口，其中一个为进口，另外两个为出口，且三通水阀内的阀芯在阀座内转动时，阀芯能够对阀座上的进口与两个出口之间的通路进行选择性切换，以此实现该三通水阀工作时，对流量的控制。
传统的三通水阀中，用于驱动阀芯在阀座内转动的转轴与阀芯之间通常设置为分体式结构，具体在阀芯上开设凹槽，并将转轴对应的插入至阀芯的凹槽内，并与阀芯周向限位，使得三通水阀在工作时，执行器通过转轴驱动阀芯在阀座内转动。
上述的三通水阀工作时，能够实现对阀座上进口与两个出口之间的通路进行切换，然而由于转轴是通过插入阀芯的凹槽，并与阀芯配合以实现阀芯在阀座内的转动，也就是说转轴与阀芯之间是间隙配合，使得转轴与阀芯之间的连接强度较弱，且在长期使用过程中，转轴与阀芯相连接的部位容易发生磨损，从而降低阀芯的旋转精度。
发明内容
根据本申请的各种实施例，提供一种三通水阀，该三通水阀包括：阀座、阀芯、阀盖及执行器。
所述阀芯设于所述阀座内，所述阀盖盖设于所述阀座，所述执行器固定于所述阀盖上，所述阀芯的一端设有转轴，所述转轴与所述阀芯一体式设置，所述转轴的另一端与所述驱动部转动连接，且所述驱动部能够对所述转轴周向限位。
上述的三通水阀，通过将所述转轴与所述阀芯设置为一体，以加强转轴与阀芯之间的连接强度，避免所述转轴与所述阀芯分体设置时两者的连接部位产生磨损，影响阀芯的旋转精度；同时，一体设置能够保证所述阀芯能够随着所述转轴同时旋转，以提高所述阀芯的旋转精度。
在其中一个实施方式中，所述转轴上设置有限位部，所述驱动部上设有限位配合部，所述转轴与所述驱动部装配连接时，所述限位部能够与所述限位配合部配合。如此，通过所述限位部与所述限位配合部的配合，实现所述驱动部对于所述转轴的周向限位。
在其中一个实施方式中，所述转轴外侧壁上设置有的定位凸部以形成所述限位部，所述驱动部上开设有定位凹槽以形成所述限位配合部。如此，结构简单。
在其中一个实施方式中，所述阀芯与所述阀座，以及所述阀芯与所述阀盖之间分别设置有导向结构件，所述阀芯上设置有与导向结构件配合的导向部。如此，在所述阀芯进行旋转时，所述导向结构件与所述导向部的配合能够对于所述阀芯的旋转起到导向作用，以减少所述阀芯旋转时产生的摩擦力，延长所述阀芯的使用寿命。
在其中一个实施方式中，所述导向结构件为密封圈，所述密封圈与所述阀芯滑动连接。
在其中一个实施方式中，所述导向结构件为轴承。
在其中一个实施方式中，所述阀芯的底面开设有第一连接口，所述阀芯的侧面开设有第二连接口，所述第一连接口与所述第二连接口连通。
在其中一个实施方式中，所述第二连接口的横截面呈方形，所述阀座开设有第一阀口及第二阀口，且所述阀芯通过所述第二连接口能够同时与所述第一阀口及所述第二阀口连通。如此，由于所述阀芯的横截面呈方形，第二连接口的横截面与阀芯的横截面相同，充分利用阀芯内腔的流通面积，增大流通量。
在其中一个实施方式中，所述第一阀口及所述第二阀口处均设有第一密封件和第二密封件，以使所述阀芯与所述阀座之间密封装配。如此，以加强所述阀芯与所述阀座之间的密封性。
在其中一个实施方式中，所述第一密封件为密封垫，所述第二密封件为O型圈，所述密封垫设于所述阀座上，所述O型圈嵌装在所述密封垫抵接于所述阀座的一侧端面上，所述密封垫背离所述O型圈的一侧端面与所述阀芯抵接。如此，结构简单。
在其中一个实施方式中，所述第一密封件靠近所述阀芯设置，所述第一密封件靠近所述第一阀口或所述第二阀口的一端设有第一密封凸部，所述第一密封凸部能够与所述阀芯抵接。如此设置，以加强所述第一密封件对于所述阀芯的作用力，进一步加强密封效果。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或 多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为本申请提供的三通水阀的结构爆炸图；
图2为本申请提供的三通水阀的剖视图；
图3为本申请提供的三通水阀的第一连接支管与第二连接支管连通时的结构示意图；
图4为本申请提供的三通水阀的第一连接支管与第二连接支管和第三连接支管同时连通时的结构示意图；
图5为本申请提供的三通水阀的第一连接支管与第三连接支管连通时的结构示意图；
图6为本申请提供的三通水阀的阀座的结构示意图；
图7为本申请提供的三通水阀的阀芯与转轴的装配示意图；
图8为本申请提供的其中一个实施例中第一密封件和第二密封件的装配示意图。
附图中标号的含义为：
100表示三通水阀；10表示阀座；11表示第一连接支管；12表示第二连接支管；13表示第三连接支管；14表示第一阀口；15表示第二阀口；20表示阀芯；21表示第一连接口；22表示第二连接口；23表示导向部；30表示阀盖；40表示执行器；41表示转轴；411表示限位部；412表示定位凸部；42表示驱动部；421表示限位配合部；422表示定位凹槽；102表示密封垫；103表示O型圈；104表示导向结构件；105表示密封槽；201表示第一密封件；202表示第二密封件；203表示第一密封凸部；204表示第一密封凹槽；205表示第二密封凸部。
具体实施方式
为了便于理解本申请，下面将对本申请进行更全面的描述。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具 体的实施例的目的，不是旨在于限制本申请。
请参阅图1至图8，本申请提供的三通水阀100，该三通水阀100用于在管路系统中实现管路的切换。在本实施例中，三通水阀100应用于汽车热管理系统中，在其他实施例中，三通水阀100还可应用于供热、给排水等管路系统中。
请参见图1及图2，三通水阀100包括阀座10、设于所述阀座10内的阀芯20、盖设于所述阀座10的阀盖30，以及固定在所述阀盖30上的执行器40。其中所述执行器40能够驱动所述阀芯20在所述阀座10内转动，以此实现该三通水阀100工作时的流量控制。
具体地，所述阀芯20的底面开设有第一连接口21，所述阀芯20的侧面开设有第二连接口22，所述第一连接口21与所述第二连接口22连通。
相应地，所述阀座10的底部连接有第一连接支管11，所述阀座10的侧壁上连接有第二连接支管12及第三连接支管13，且所述第一连接支管11始终与所述阀芯20的第一连接口21连通，而所述第二连接支管12和/或所述第三连接支管13能够与所述阀芯20的第二连接口22连通。在本实施例中，第一连接支管11作为进口，第二连接支管12与第三连接支管13作为出口，在其他实施例中，根据不同的设计，第一连接支管11可作为出口，第二连接支管12与第三连接支管13中的其中之一可作为进口。
请参见图3至图5，所述执行器40驱动所述阀芯20在所述阀座10内转动时，本申请的三通水阀能够实现以下三种通路的情形：所述第一连接支管11通过所述阀芯20的第一连接口21、第二连接口22与所述第二连接支管12连通；所述第二连接支管12通过所述阀芯20的第一连接口21、第二连接口22与所述第三连接支管13连通；所述第一连接支管11通过所述阀芯20的第一连接口21、第二连接口22与所述第二连接支管12和所述第三连接支管13连通，即，第一连接支管11与第二连接支管12和第三连接支管13均连通，以此实现该三通水阀100工作时能够通过对该三通水阀100上通路的切换，来实现流量的控制。
请参见图7，本实施例中，所述阀芯20的第二连接口22的横截面呈方形，由于阀芯20的横截面呈方形，第二连接口22的横截面与阀芯20的横截面相同，使得阀芯20上第二连接口22的口径能够最大化设置，充分利用阀芯20的内腔的流通面积，增大流通量。在其他实施例中，第二连接口22的横截面可根据阀芯20的横截面不同而设置为其他形状。
阀座10开设有第一阀口14及第二阀口15，第二连接支管12连接于第一阀口14，第三连接支管13连接于第二阀口15，且所述阀芯20通过所述第二连接口22能够同时与第一阀口14及第二阀口15连通，以此确保阀座10上的第一连接支管11同时与第二连接支管12和第三连接支管13连通时，所述第二连接支管12和所述第三连接支管13拥有足 够大的流量向外导出，以此实现该阀座10上三条连接支管的全流通；同时，所述阀芯20上第二连接口22的设置，能够在注塑时使注塑制品充分填充，以改善该阀芯20整体的注塑工艺。
所述第一阀口14及所述第二阀口15处均设有第一密封件201和第二密封件202，以使所述阀芯20与所述阀座10之间密封连接，从而实现三通水阀100的整体的防内漏密封。
在其中一个实施例中，第一密封件201为密封垫102，第二密封件202为O型圈103，密封垫102设于所述阀座10上，密封垫102远离阀芯20的一端的端面开设有密封槽105，O型圈103嵌设于密封槽105内，密封垫102远离O型圈103的一侧端面作为密封面与阀座10抵接，以实现所述阀座10与所述阀芯20之间的装配密封。
可以理解，用于对所述阀座10与所述阀芯20之间的装配密封不局限于上述的密封垫102和O型圈103，本领域技术人员还可以根据使用的需要采用相互配合的其他的第一密封件201和第二密封件202，例如所述第一密封件201采用其他硬度较低的密封材料制备而成，其设于所述阀座10上，而所述第一密封件201则由采用其他具有耐磨性及低摩擦系数的材料制备而成，并贴合于所述第一密封件201设置。
请参见图8，在其中一个实施方式中，进一步地，第一密封件201相对于第二密封件202靠近阀芯20设置，第一密封件201靠近第一阀口14或第二阀口15的一端设有第一密封凸部203，第一密封凸部203能够与阀芯20抵接。可以理解，第一密封凸部203能够提高所述第一密封件201与所述阀芯20抵接配合时的相互作用力，进而确保所述第一密封件201和所述第二密封件202对阀芯20与所述阀座10装配密封的密封效果。
第二密封件202设有第二密封凸部205，第二密封凸部205具有与第一密封凸部203相配合的第一密封凹槽204，第一密封凹槽204位于第二密封凸部205的内侧，第二密封凸部205能够进一步提高第一密封件201与阀芯20抵接时的作用力，且第一密封凸部203设于第一密封凹槽204内，能够使第一密封件201与第二密封件202贴合设置，从而加强密封性。
阀芯20的一端设有转轴41，转轴41与阀芯20连接并一体式设置，所述执行器40设有驱动部42，驱动部42与转轴41远离阀芯20的一端转动连接，驱动部42能够对于转轴41进行周向限位。也就是说，本实施方式的三通水阀100将用于驱动所述阀芯20在所述阀座10内旋转的转轴41与所述阀芯20设为一体式结构。需要说明的是，所述转轴41与所述阀芯20可以以焊接的方式连接为一体，也可将阀芯20与转轴41采用一体成型的方式制备而成。
由上可知，所述阀芯20与所述转轴41连接为一体，以此提高所述转轴41与所述阀芯20之间的连接强度，确保所述执行器40工作时所述阀芯20的能够旋转；且所述阀芯20在所述阀座10内旋转时，所述转轴41与所述阀芯20的同时旋转，两者的转动角度始终保持一致，避免了因转轴41与阀芯20之间存在装配误差，或者使用过程中的因磨损而造成转轴41与阀芯20旋转时，两者的转动角度存在差别，以此提高执行器40对阀芯20驱动时的旋转精度，进而确保了该三通水阀100对流量控制的精度。
进一步地，所述转轴41上设置有限位部411，所述执行器40的驱动部42上设置限位配合部421，所述转轴41与所述执行器40的驱动部42装配连接时，所述限位部411与所述限位配合部421配合。也就是说，本实施方式的转轴41与所述执行器40的驱动部42相互装配时，所述转轴41在所述执行器40上装配的位置是确定的，进而便于所述执行器40在通过所述转轴41驱动所述阀芯20在所述阀座10内转动时，所述执行器40对所述阀芯20旋转驱动的控制。
需要说明的是，在其他实施例中，三通水阀100还可在所述执行器40与所述转轴41相互配合的位置处设置角度传感器(图未示)，使得所述执行器40通过所述转轴41对所述阀芯20旋转驱动时，所述角度传感器能够反馈信号，进而进一步提高所述阀芯20在所述阀座10内旋转时转动角度的精确控制。
具体地，转轴41在其外侧壁上设置有定位凸部412，以形成限位部411，驱动部42开设有定位凹槽422以形成限位配合部421，定位凸部412能够与定位凹槽422相配合以实现转轴41的周向限位。需要说明的是，本申请的转轴41上用于与所述执行器40的驱动部42配合的部位设置不单一，可设置在驱动部42的不同位置，而所述定位凸部412具体可设置在所述转轴41的其中一个侧壁上。
所述阀芯20与所述阀座10，以及所述阀芯20与所述阀盖30之间分别设置有导向结构件104，所述阀芯20上设置有与导向结构件104配合的导向部23，用于对所述阀芯20的旋转进行导向。以此提高本申请的三通水阀100的阀芯20在所述阀座10及所述阀盖30内的定位精度，能够延长所述阀芯20的使用寿命，减少所述阀芯20转动时所受到的摩擦力的作用。
具体地，所述导向结构件104为密封圈，所述密封圈与所述阀芯20滑动连接。也就是说，本实施方式的阀芯20通过所述密封圈在所述阀座10和所述阀盖30内装配定位，且所述执行器40驱动所述阀芯20旋转时，所述阀芯20能够相对于所述密封圈旋转。
在另外的实施例中，所述导向结构件104为轴承，以此实现所述阀芯20相对于所述阀座10和所述阀盖30的转动连接。本申请并不限制导向结构件104为上述的两种结构， 导向结构件104还可为其他，只要能够实现减少阀芯20转动时产生的摩擦力即可。
本申请提供的三通水阀100，通过将转轴41与阀芯20一体设置，以加强转轴41与阀芯20的连接强度，增强阀芯20的使用寿命，同时，阀芯20与转轴41一体设置，能够保证阀芯20与转轴41同时旋转，以此提高执行器40对阀芯20转动驱动时的旋转精度。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (11)

  1. 一种三通水阀，包括阀座、设于所述阀座内的阀芯、盖设于所述阀座的阀盖及执行器，所述执行器固定于所述阀盖上，所述执行器能够驱动所述阀芯在所述阀座内转动，所述执行器设有驱动部；
    其特征在于，所述阀芯的一端设有转轴，所述转轴与所述阀芯一体式设置，所述转轴的另一端与所述驱动部转动连接，且所述驱动部能够对所述转轴周向限位。
  2. 根据权利要求1所述的三通水阀，其特征在于，所述转轴上设置有限位部，所述驱动部设有限位配合部，所述转轴与所述执行器的驱动部装配连接时，所述限位部与所述限位配合部配合。
  3. 根据权利要求2所述的三通水阀，其特征在于，所述转轴的外侧壁设置有定位凸起以形成所述限位部，所述驱动部开设有定位凹槽，以形成所述限位配合部。
  4. 根据权利要求1所述的三通水阀，其特征在于，所述阀芯与所述阀座，以及所述阀芯与所述阀盖之间分别设置有导向结构件，所述阀芯上设置有与导向结构件配合的导向部。
  5. 根据权利要求4所述的三通水阀，其特征在于，所述导向结构件为密封圈，所述密封圈与所述阀芯滑动连接。
  6. 根据权利要求4所述的三通水阀，其特征在于，所述导向结构件为轴承。
  7. 根据权利要求1所述的三通水阀，其特征在于，所述阀芯的底面开设有第一连接口，所述阀芯的侧面开设有第二连接口，所述第一连接口与所述第二连接口连通。
  8. 根据权利要求7所述的三通水阀，其特征在于，所述第二连接口的横截面呈方形，所述阀座开设有第一阀口及第二阀口，且所述阀芯通过所述第二连接口能够同时与所述第一阀口及所述第二阀口连通。
  9. 根据权利要求8所述的三通水阀，其特征在于，所述第一阀口及所述第二阀口处均设有第一密封件和第二密封件，以使所述阀芯与所述阀座之间密封装配。
  10. 根据权利要求9所述的三通水阀，其特征在于，所述第一密封件为密封垫，所述第二密封件为O型圈，所述密封垫设于所述阀座上，所述O型圈嵌装在所述密封垫抵接于所述阀座的一侧端面上，所述密封垫背离所述O型圈的一侧端面与所述阀芯抵接。
  11. 根据权利要求9所述的三通水阀，其特征在于，所述第一密封件靠近所述阀芯设置，所述第一密封件靠近所述第一阀口或所述第二阀口的一端设有第一密封凸部，所述第一密封凸部能够与所述阀芯抵接。
PCT/CN2020/097567 2019-06-24 2020-06-23 三通水阀 WO2020259458A1 (zh)

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KR1020217027833A KR20210119516A (ko) 2019-06-24 2020-06-23 삼방향 워터 밸브
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