CN103261766B - Electrical valve - Google Patents

Electrical valve Download PDF

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Publication number
CN103261766B
CN103261766B CN201180049855.8A CN201180049855A CN103261766B CN 103261766 B CN103261766 B CN 103261766B CN 201180049855 A CN201180049855 A CN 201180049855A CN 103261766 B CN103261766 B CN 103261766B
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CN
China
Prior art keywords
valve
needle
guide section
nut
core case
Prior art date
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Active
Application number
CN201180049855.8A
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Chinese (zh)
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CN103261766A (en
Inventor
魏先让
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sanhua Intelligent Controls Co Ltd
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Zhejiang Sanhua Co Ltd
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.)
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Publication date
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Priority claimed from CN2010105152341A external-priority patent/CN102454818A/en
Priority claimed from CN201010515238XA external-priority patent/CN102454819B/en
Priority claimed from CN201110184918.2A external-priority patent/CN102853086B/en
Application filed by Zhejiang Sanhua Co Ltd filed Critical Zhejiang Sanhua Co Ltd
Priority to CN201180049855.8A priority Critical patent/CN103261766B/en
Publication of CN103261766A publication Critical patent/CN103261766A/en
Application granted granted Critical
Publication of CN103261766B publication Critical patent/CN103261766B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/42Valve seats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor

Abstract

An electrical valve for adjusting fluid flow comprises a valve seat (12) provided with a valve chamber (121) and a valve plug seat (11) with a valve port (113) fixed on the valve seat; a valve needle-screw stem assembly comprises a screw stem (23) and a valve needle (21) drivable by the screw stem (23); a nut assembly comprises a nut (32) and a connecting plate (31), wherein the connecting plate is fixedly connected to the valve seat, the nut thread fits the screw stem, the nut is provided with a lower pilot segment (321) thereof, the valve needle is provided with a lower pilot segment (211), and the valve plug seat is provided with a first pilot segment (111) fitting the lower pilot segment of the nut and a second pilot segment (112) fitting the lower pilot of the valve needle. The electrical valve enables concentricity between the nut and the valve needle-screw stem assembly, and concentricity between the nut and the valve port of the valve plug seat to be easily ensured, so as to prevent the problems of the valve port not being sealed tightly or the valve port being worn eccentrically, such that the operational reliability of the electrical valve is increased.

Description

A kind of mortor operated valve
This application claims the preference of following patent application, its full content combines in this application all by reference:
1, the Chinese patent application that Patent Office of the People's Republic of China, application number are 201010515234.1, denomination of invention is " a kind of mortor operated valve " is submitted on October 15th, 2010;
2, the Chinese patent application that Patent Office of the People's Republic of China, application number are 201010515238.X, denomination of invention is " mortor operated valve and stopping device thereof " is submitted on October 15th, 2010;
3, the Chinese patent application that Patent Office of the People's Republic of China, application number are 201110184918.2, denomination of invention is " a kind of motor operated valve " is submitted on July 1st, 2011.
Technical field
The present invention relates to control valve technical field, particularly relating to a kind of for regulating the mortor operated valve of fluid flow.
Background technique
In air-conditioning, refrigerator, heat pump water heater and all kinds of refrigeration, heating device, mortor operated valve is usually adopted to regulate the flow of fluid.
Mortor operated valve generally includes valve component, nut assembly, needle screw component, rotor assembly, valve component generally includes valve core case, valve seat and connecting tube, valve seat has valve port, the usual integrally welded formation valve component of valve core case, valve seat and connecting tube, the needle of needle screw component is arranged in the nut of nut assembly.
Patent Document (JP 2010-25932 publication) discloses a kind of mortor operated valve, the nut of nut assembly is fixed in pilot sleeve, pilot sleeve is fixed on valve seat, needle needs again to be fixed in the valve port of valve seat, therefore require higher to the coaxality of valve seat and nut, said electric valve needs indirectly to control the coaxality of guarantee valve core case and nut through repeatedly assembling procedure, and the coaxality of valve seat and nut is subject to nut, pilot sleeve, valve seat, the impact of the machining accuracy of multiple part such as needle, coaxality not easily ensures, if there is valve core case and nut disalignment, easily there is needle and valve port disalignment phenomenon, and then cause the tight or valve port of sealing valve port to occur the problem of eccentric wear, thus make the reliability of the action of mortor operated valve lower, also the working life of mortor operated valve can be shortened.
Therefore, how to develop and a kind ofly meet the higher mortor operated valve of valve component, nut assembly and needle screw component coaxality, become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of mortor operated valve, comprise valve component, nut assembly, needle screw component, described valve component comprises the valve seat being provided with valve pocket and the valve core case being fixed on the band valve port on described valve seat, the needle that described needle screw component comprises screw mandrel and driven by described screw mandrel; Described nut assembly comprises nut and connecting sheet, described connecting sheet and described valve seat affixed; Described nut coordinates with described wire rod thread, described nut has nut bottom guide section, described needle has bottom guide section, and described valve core case has the first guide section coordinated with the bottom guide section of described nut and the second guide section coordinated with the bottom guide section of described needle.
Preferably, as the mortor operated valve of said structure, first guide section of described valve core case is arranged on valve core case from the outer edge of the reverse side of valve port or inner edge portion, correspondingly the bottom guide section of described nut and the first guide section of described valve core case are cooperatively arranged on inner edge portion or the outer edge of nut, and described valve core case and described nut screw connection are located;
Preferably, as the mortor operated valve of said structure, outer edge or the inner edge portion of the side reverse from valve port of described valve core case have stepped part, and described first guide section is the columned outside wall portions of opposite upper parts or the inner wall part of circular hole in outer edge or inner edge portion stepped part;
Preferably, as the mortor operated valve of said structure, the inner edge portion of the side reverse from valve port of described valve core case has stepped part, and described second guide section is the inner wall part of the endoporus relatively near valve port side in described inner edge portion stepped part;
Preferably, as the mortor operated valve of said structure, described valve core case is provided with spool receiving cavity, and the second guide section of described valve core case is arranged on the inner edge portion of described receiving cavity, and the bottom guide section of described needle is arranged on the outer edge of needle.
Preferably, as the mortor operated valve of said structure, the needle section that described needle comprises bottom guide section and coordinates with described valve port, the second guide section of described valve core case matches with the bottom guide section of described needle, makes described needle be arranged in the receiving cavity of described valve core case with sliding axially.
Preferably, as the mortor operated valve of said structure, described valve core case is also provided with the opening connecting described receiving cavity and described valve pocket.
Preferably, as the mortor operated valve of said structure, described nut also includes the thread section coordinated with described screw mandrel at the opposition side of its underpart guide section, also has the screw mandrel guide section coordinated with described screw mandrel in the upper end of thread section or lower end.
Preferably, as the mortor operated valve of said structure, be connected by spring between described screw mandrel with described needle.
Preferably, as the mortor operated valve of said structure, also be provided with valve needle cover between described screw mandrel and described needle, valve needle cover is fixedly connected with described needle, and described screw mandrel to enter in the inner chamber of described needle through described valve needle cover and directly or indirectly abuts against with described spring.
Mortor operated valve provided by the invention, needle screw component and nut are all provided with the guide section coordinated with valve core case, are coordinated with valve core case by guide section.Due to the valve port on the first guide portion of valve core case and the second guide portion and valve core case, can simultaneously disposable machine shaping or adopt mould-forming, to ensure tolerance and the precision of relative position, coaxality between the valve port of nut and needle screw component and valve core case is very easily guaranteed, avoids occurring that the problem of eccentric wear appears in the tight or valve port of sealing valve port; Meanwhile, because the coaxality of needle and valve port is improved, the frictional force during rotor turns of rotor assembly can obviously reduce, and the Reliability of Microprocessor of mortor operated valve also can improve.
Accompanying drawing explanation
Fig. 1: the structural representation of a kind of mortor operated valve specific embodiment provided by the present invention;
The outline drawing of nut assembly and axle sectional view in Fig. 2: Fig. 1;
The outline drawing of valve core case and axle sectional view in Fig. 3: Fig. 1;
Fig. 4: the structural representation of another kind of mortor operated valve specific embodiment provided by the present invention;
The outline drawing of nut assembly and axle sectional view in Fig. 5: Fig. 4;
The outline drawing of valve core case and axle sectional view in Fig. 6: Fig. 4.
Symbol description in figure:
11-valve core case;
111-first guide section, 112-second guide section;
113-valve port, 114 receiving cavities, 115-opening;
12-valve seat, 121-valve pocket;
13-first connecting tube, 14-second connecting tube;
21-needle, 211-guide section;
22-valve needle cover, 23-screw mandrel;
24-back-up ring, 25-spring;
31-connecting sheet;
32-nut;
321-guide section, 322-screw mandrel guide section;
33-spring guide rail, 34-slip ring;
41-rotor, 42-rotor retainer;
5-shell.
Embodiment
In order to make those skilled in the art better understand technological scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the structural representation of a kind of mortor operated valve specific embodiment provided by the present invention; Fig. 2 is outline drawing and the axle sectional view of nut assembly; Fig. 3 is outline drawing and the axle sectional view of valve core case.Please refer to Fig. 1, Fig. 2 and Fig. 3.
Mortor operated valve provided by the invention comprises valve component, nut assembly, needle screw component and rotor assembly.
Valve component comprises valve core case 11 and valve seat 12.Valve core case 11 is also processed with valve port 113, valve seat 12 be bottom with the roughly tubular structure with valve core case matching hole, it is inner forms valve pocket 121.In the present embodiment, valve component also comprises the first connecting tube 13 and the second connecting tube 14 further.Valve core case 11, valve seat 12, first connecting tube 13, second connecting tube 14 link into an integrated entity formation valve component.Certainly, valve core case 11, valve seat 12, first connecting tube 13, second connecting tube 14 can be integral by being welded to connect, also can be one-body molded.
Nut assembly comprises nut 32 and connecting sheet 31, connecting sheet 31 as inserts and nut 32 one-body molded, connecting sheet 31 welds affixed with valve seat 12, the screw thread that described nut 32 is arranged by upper end and screw mandrel 23 screw-thread fit.The inner edge portion of nut 32 bottom is provided with guide section 321.In the endoporus on the top of nut 32, be provided with the screw mandrel guide section 322 coordinated with screw mandrel 23, screw mandrel guide section 322 can be arranged on nut 32 with the upside of screw mandrel 23 matching thread section or downside, to be conducive to guiding when screw mandrel rotates.The excircle on the top of nut 32 is set with spring guide rail 33 and stop slip ring 34.
The needle 21 that needle screw component comprises screw mandrel 23 and driven by screw mandrel 23, in the present embodiment, needle screw component also comprises valve needle cover 22 further, back-up ring 24, spring 25, needle 21 and valve needle cover 22 link into an integrated entity, needle 21 and valve needle cover 22 specifically can by welding, the modes such as interference is press-fitted link into an integrated entity, the head of screw mandrel 23 is set with back-up ring 24, back-up ring 24 can by welding, the modes such as interference is press-fitted and screw mandrel 23 are set with, screw mandrel 23 is installed in the endoporus of needle 21, spring 25 is also provided with in needle 21 endoporus, the end of screw mandrel 23 can against spring 25.For elasticity is connected between screw mandrel 23 with needle 21.The outer edge of needle 21 has guide section 211.
Rotor assembly comprises rotor 41, rotor retainer 42 and connecting body both being connected, and rotor assembly is fixed on the upper end of screw mandrel 23.
In concrete scheme, mortor operated valve also comprises shell 5, and shell 5 is sleeved on valve seat 12, for sealed valve body.
The outer edge of valve core case 11 is provided with stepped part, the relative upside of the stepped part that the outer edge of valve core case 11 is arranged namely away from the columned outside wall portions of side, valve port direction as the first guide section 111 of the present invention, first guide section 111 of valve core case 11 coordinates with the bottom guide section 321 of nut 32, particularly, both can be that transition, interference or small―gap suture coordinate, and valve core case 11 is coordinated with nut 32 and locates.The coaxality between valve core case 11 and nut 32 can be made like this to be guaranteed, and coordinating further combined with valve core case 11 and the guide section arranged between needle, the coaxality of needle and nut is ensured.And then coordinate in conjunction with what nut was arranged the screw mandrel guide section 322 led with the screw mandrel on needle screw component, needle screw component is made to have upper and lower guiding respectively, thus make to have coaxality between the valve port of valve core case and needle and be more easily guaranteed, avoid occurring that the problem of eccentric wear appears in the tight or valve port of sealing valve port.
Valve core case 11 is also provided with spool receiving cavity 114, the inner edge portion of receiving cavity 114 is provided with the second guide section 112.Valve core case 11 is also provided with the opening 115 connecting receiving cavity 114 and valve pocket 121.Second guide section 112 of valve core case 11 coordinates with the guide section 211 of needle.Needle 21 can be arranged in the receiving cavity 114 of described valve core case 11 with sliding axially.Mortor operated valve provided by the invention, first needle screw component and nut are screwed togather, the guide end simultaneously making nut lower end arrange again and needle guide section coordinate with the first guide section on valve core case and the second guide section in axial sliding respectively and are in place, then the mode by connecting sheet and valve seat being carried out welding, is fixed on nut assembly on valve seat.Due to the valve port on the first guide portion of valve core case and the second guide portion and valve core case, can simultaneously disposable machine shaping or adopt mould-forming, to ensure tolerance and the precision of relative position, coaxality between the valve port of nut and needle screw component and valve core case is very easily guaranteed, avoids occurring that the problem of eccentric wear appears in the tight or valve port of sealing valve port; Meanwhile, because the coaxality of needle and valve port is improved, the frictional force during rotor turns of rotor assembly can obviously reduce, and the Reliability of Microprocessor of mortor operated valve also can improve.
It should be noted that, it will be appreciated by those skilled in the art that, the present invention's said " inner edge portion " or " outer edge ", the axial inner edge portion in the hole referred to or the axial outer edge of axle, as being the axial inner headed face in hole of nut or axial periphery in the present embodiment.
Fig. 4 is the structural representation of the another kind of specific embodiment of a kind of mortor operated valve provided by the present invention; Fig. 5 is outline drawing and the axle sectional view of nut assembly; Fig. 6 is outline drawing and the axle sectional view of valve core case.Please refer to Fig. 4, Fig. 5 and Fig. 6.
This embodiment and previous embodiment difference are, the outer edge of nut 32 bottom is provided with guide section 321; The outer edge of needle 21 has guide section 211.
The inner edge portion of valve core case 11 is provided with step cutting pattern portion, on the step surface that its aperture is larger i.e. valve core case 11 inner edge portion on the inner wall part of circular hole of opposite upper parts be provided with the first guide section 111, first guide section 111 of valve core case 11 coordinates with the guide section 321 of nut 32, valve core case 11 is coordinated with nut 32 and locates; The step surface that its aperture is less is provided with the second guide section 112, its endoporus then forms spool receiving cavity 114, second guide section 112 of valve core case 11 coordinates with the guide section 211 of needle, and needle 21 can be arranged in the receiving cavity 114 of described valve core case 11 with sliding axially.
The above is only the description of preferred implementation of invention, it should be pointed out that the orientation word such as upper and lower, inside and outside in specification of the present invention just more for clarity, should not regard as limitation of the present invention.Due to the finiteness of literal expression; and objectively there is unlimited concrete structure, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (8)

1. a mortor operated valve, comprise valve component, nut assembly, needle screw component, described valve component comprises the valve seat (12) being provided with valve pocket (121) and the valve core case (11) being fixed on the band valve port (113) on described valve seat (12), the needle (21) that described needle screw component comprises screw mandrel (23) and driven by described screw mandrel (23); Described nut assembly comprises nut (32) and connecting sheet (31);
Described connecting sheet (31) is affixed with described valve seat (12); Described nut (32) and described screw mandrel (23) screw-thread fit;
Described nut (32) has nut bottom guide section (321), it is characterized in that,
The outer edge of described needle (21) has bottom guide section (211), described valve core case (11) has the spool receiving cavity (114) that described needle (21) can be arranged axially slidably along it, and connects the opening (115) of described receiving cavity (114) and described valve pocket (121); Be located at outer edge or the inner edge portion of described valve core case (11), for the first guide section (111) coordinated with the bottom guide section (321) of described nut; With the inner edge portion being located at described receiving cavity (114), for the second guide section (112) coordinated with the bottom guide section (211) of described needle (21).
2. mortor operated valve according to claim 1, it is characterized in that, first guide section (111) of described valve core case (11) is arranged on valve core case (11) from the outer edge of the reverse side of valve port or inner edge portion, correspondingly the bottom guide section (321) of described nut (32) and first guide section (111) of described valve core case (11) are cooperatively arranged on inner edge portion or the outer edge of nut (32), described valve core case (11) is coordinated with described nut (32) and locates.
3. mortor operated valve according to claim 2, it is characterized in that, outer edge or the inner edge portion of the side reverse from valve port of described valve core case (11) have stepped part, and described first guide section (111) is the columned outside wall portions of opposite upper parts in outer edge or inner edge portion stepped part or the inner wall part of circular hole.
4. mortor operated valve according to claim 3, it is characterized in that, the inner edge portion of the side reverse from valve port of described valve core case (11) has stepped part, the inner wall part that described second guide section (112) is the endoporus relatively near valve port side in described inner edge portion stepped part.
5. mortor operated valve according to claim 1, it is characterized in that, the needle section that described needle (21) comprises bottom guide section (211) and coordinates with described valve port, second guide section (112) of described valve core case (11) matches with the bottom guide section (211) of described needle (21), and described needle (21) can be arranged in the receiving cavity (114) of described valve core case (11) with sliding axially.
6. the arbitrary mortor operated valve according to claim 1-5, it is characterized in that, described nut (32) also includes the thread section coordinated with described screw mandrel (23) at the opposition side of its underpart guide section, also have the screw mandrel guide section (322) coordinated with described screw mandrel (23) in the upper end of thread section or lower end.
7. the arbitrary mortor operated valve according to claim 1-5, is characterized in that, is connected between described screw mandrel (23) with described needle (21) by spring (25) elasticity.
8. mortor operated valve according to claim 7, it is characterized in that, valve needle cover (22) is also provided with between described screw mandrel (23) and described needle (21), valve needle cover (22) is fixedly connected with described needle, and described screw mandrel to enter in the inner chamber of described needle (21) through described valve needle cover (22) and directly or indirectly abuts against with described spring (25).
CN201180049855.8A 2010-10-15 2011-10-14 Electrical valve Active CN103261766B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201180049855.8A CN103261766B (en) 2010-10-15 2011-10-14 Electrical valve

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
CN2010105152341A CN102454818A (en) 2010-10-15 2010-10-15 Electric valve
CN2010105152341 2010-10-15
CN201010515238X 2010-10-15
CN201010515234.1 2010-10-15
CN201010515238XA CN102454819B (en) 2010-10-15 2010-10-15 Electric valve and stopping device thereof
CN201010515238.X 2010-10-15
CN2011101849182 2011-07-01
CN201110184918.2A CN102853086B (en) 2011-07-01 2011-07-01 Electrically operated valve device
CN201110184918.2 2011-07-01
CN201180049855.8A CN103261766B (en) 2010-10-15 2011-10-14 Electrical valve
PCT/CN2011/080797 WO2012048659A1 (en) 2010-10-15 2011-10-14 Electrical valve

Publications (2)

Publication Number Publication Date
CN103261766A CN103261766A (en) 2013-08-21
CN103261766B true CN103261766B (en) 2015-04-15

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ID=45937908

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CN201180049850.5A Active CN103261765B (en) 2010-10-15 2011-10-14 Electrically-operated valve
CN201180049855.8A Active CN103261766B (en) 2010-10-15 2011-10-14 Electrical valve

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Application Number Title Priority Date Filing Date
CN201180049850.5A Active CN103261765B (en) 2010-10-15 2011-10-14 Electrically-operated valve

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JP (2) JP5716980B2 (en)
KR (2) KR101455952B1 (en)
CN (2) CN103261765B (en)
WO (2) WO2012048658A1 (en)

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KR20220020398A (en) * 2018-08-17 2022-02-18 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 Electronic expansion valve
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CN112576800B (en) * 2019-09-29 2022-06-17 浙江盾安禾田金属有限公司 Electromagnetic three-way valve assembling method and electromagnetic three-way valve
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CN103261766A (en) 2013-08-21
KR20130085038A (en) 2013-07-26
KR101458424B1 (en) 2014-11-07
CN103261765A (en) 2013-08-21
JP2013539849A (en) 2013-10-28
CN103261765B (en) 2015-05-20
KR20130085039A (en) 2013-07-26
WO2012048659A1 (en) 2012-04-19
JP2013539850A (en) 2013-10-28
KR101455952B1 (en) 2014-10-28
JP5987834B2 (en) 2016-09-07
KR101455952B9 (en) 2024-01-26
JP5716980B2 (en) 2015-05-13
WO2012048658A1 (en) 2012-04-19

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