CN104565392A - Electric valve - Google Patents
Electric valve Download PDFInfo
- Publication number
- CN104565392A CN104565392A CN201510003282.5A CN201510003282A CN104565392A CN 104565392 A CN104565392 A CN 104565392A CN 201510003282 A CN201510003282 A CN 201510003282A CN 104565392 A CN104565392 A CN 104565392A
- Authority
- CN
- China
- Prior art keywords
- valve
- nut
- connecting sheet
- assembly
- mortor operated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
An electric valve comprises a valve body assembly, a nut assembly, a valve needle lead screw assembly and a rotor assembly; the valve body assembly comprises a valve body and a valve core seat which is welded on the valve body; the nut assembly comprises a plastic nut and a connecting piece, wherein the plastic nut is used for installing the valve needle lead screw assembly and the connecting piece is connected with the plastic nut. The electric valve is characterized in that the nut assembly is provided with a circumferential positioning portion and an axial positioning portion, wherein the circumferential positioning portion is matched with the valve body assembly so as to limit the circumferential rotation of the nut assembly and the axial positioning portion is used for limiting the axial movement of the nut assembly; the valve body is provided with a riveting pressure portion which is matched with the axial positioning portion; the nut assembly is fixed on the valve body assembly through the riveting pressure. According to the electric valve, the coaxiality of a valve needle and the valve core seat is high and the operation of the valve need is reliable.
Description
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 heating-cooling equipment, 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, the working life of mortor operated valve is also shorter.In addition, a development trend of related domain has been become at present with plastic materials alternative metals material, in said electric valve, if nut adopts plastic material, nut and pilot sleeve not easily guarantee the join strength of the two by means of only interference fit, and connection reliability is lower, make nut not adopt plastic material, still must adopt expensive metal material, make the processing cost of mortor operated valve higher.
For improvement opportunity, first declare in disclosed patent CN201180049867.0 at another, valve component and plastic nut are welded together to provide reliability, but this welding process can produce thermal distortion to plastic nut, the needle screw component controlling run precision leading and be engaged in nut intracavity can be had influence on.On the other hand, as there are substandard products in welding process, whole semifinished part cannot be done over again and scrap, and causes cost higher.How to develop a kind of nut and the higher mortor operated valve of valve core case 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, this mortor operated valve, while the coaxality improving nut, valve core case, can ensure the precision that needle screw component runs, simple for assembly process.
To achieve these goals, a kind of mortor operated valve disclosed by the invention, comprise valve component, nut assembly, needle screw component, rotor assembly, described valve component comprises valve body and is welded on the valve core case on described valve body, the connecting sheet that described nut assembly comprises the plastic nut for installing described needle screw component and is connected with described nut, described nut is provided with the auxiliary section coordinated with described valve core case, described nut assembly is provided with and coordinates to limit circumferential positioning part that described nut assembly circumference rotates and the axially locating portion limiting described nut assembly and move axially with described valve component, described valve body is provided with the riveting portion coordinated with described axially locating portion, described nut assembly is fixed on described valve component by riveting.
Further, as the mortor operated valve of said structure, described connecting sheet is ring structure, and described circumferential positioning part and described axially locating portion are arranged on the outer edge of described connecting sheet;
Further, described valve body is tubular structure, and the opening portion of its perisporium is provided with stepped part, and described riveting portion is arranged on the end of described stepped part;
Further, the circumferential positioning part of described connecting sheet is specially outward flange, described stepped part is provided with the notch coordinated with described outward flange;
Preferably, described connecting sheet is that metallic material is made, and with described nut integrated injection molding;
Further, the auxiliary section of described nut is inner hole wall, and described circumferential positioning part is the stop inwall be opened on described inner hole wall, described valve core case is provided with the stop outer wall coordinated with described stop inwall; Described axially locating portion is arranged on the outer edge of described connecting sheet;
Further, described axially locating portion is specially the guide surface on the outer edge of described connecting sheet;
Further, described stop inwall and described stop outer wall are that plane coordinates or male-female;
Preferably, described nut and described connecting sheet are integrated material structure.
Mortor operated valve provided by the invention, by nut assembly being arranged axially locating portion, making nut assembly be fixed on described valve component by riveting, not needing to be welded and fixed.Avoid and produce thermal distortion to plastic nut and affect needle screw component running precision, technique is simply easy to control.
Accompanying drawing explanation
Fig. 1: the sectional structure schematic diagram of a kind of specific embodiment of mortor operated valve provided by the invention;
In Fig. 2: Fig. 1, nut assembly is at the schematic cross-section of main apparent direction;
In Fig. 3: Fig. 1, nut assembly overlooks the schematic cross-section in direction;
In Fig. 4: Fig. 1, valve component is at the schematic cross-section of main apparent direction;
In Fig. 5: Fig. 1, valve component overlooks the schematic cross-section in direction;
Fig. 6: another kind of nut assembly provided by the invention is at the schematic cross-section of main apparent direction;
Fig. 7: another kind of nut assembly provided by the invention overlooks the schematic cross-section in direction;
Fig. 8: another kind of valve component provided by the invention is at the schematic cross-section of main apparent direction;
Fig. 9: another kind of valve component provided by the invention overlooks the schematic cross-section in direction;
Figure 10: the third nut assembly provided by the invention is at the schematic cross-section of main apparent direction.Wherein:
Valve component 1;
Valve core case 11, valve seat 15, valve body 12;
First connecting tube 13, second connecting tube 14, valve port 16;
Riveting portion 101, stepped part 102, notch 103, stop outer wall 104, cylindrical portion 105
Needle screw component 2, screw mandrel 21;
Nut assembly 3;
Connecting sheet 31, nut 32;
Auxiliary section 33, stop inwall 34;
Flange 301, axially locating portion 302, open pore 303;
Guide surface 305, face 306 directly;
Rotor assembly 4;
Rotor 41, fixing part 42;
Shell 5, valve pocket 51.
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 sectional structure schematic diagram of a kind of specific embodiment of mortor operated valve provided by the invention; Fig. 2 and Fig. 3 to be respectively in Fig. 1 nut assembly at main apparent direction and the schematic cross-section overlooking direction; Fig. 4 and Fig. 5 to be respectively in Fig. 1 valve component at main apparent direction and the schematic cross-section overlooking direction.
Please refer to Fig. 1-Fig. 5.The valve body 12 that the valve component 1 of mortor operated valve comprises the tubular made by metallic plate punching and the valve core case 11 made by metal cutting process, valve core case 11 is fixed by welding in valve body 12.The valve seat 15 with valve port 16 is processed to form in the endoporus of valve core case 11.In the present embodiment, valve seat 15 is directly processed on valve core case 11, and certain valve seat 15 can be processed separately, then is welded to valve core case 11.Certainly, valve core case 11 also can be split-type structural, and namely band valve port 16 part is as shown in Figure 1 a part, and be another part to one section of needle guiding, and both are by weld or the mode such as interference fit is fixed.The shell 5 of tubbiness is welded on the upper outside of valve component 1, and valve component 1 coordinates with shell 5 and forms valve pocket 51.
First connecting tube 13 and the second connecting tube 14 are welded on bottom and the sidepiece of valve body 12 respectively, and the first connecting tube 13 is communicated with by valve port 16 in valve pocket 51 with the second connecting tube 14, result in formation of throttling control access.
Stop component (not marking in figure) is set with at the excircle on nut assembly 3 top, the lower end of nut assembly 3 is provided with endoporus, the hole wall of endoporus is as auxiliary section 33, the upper end of valve core case 11 is provided with cylindrical portion 105, and nut assembly 3 is set in the cylindrical portion 105 of valve core case 11 by auxiliary section 33.Needle screw component 2 is installed in the inner chamber of nut assembly 3.
Needle screw component 2 comprises screw mandrel 21, needle and valve needle cover (not marking in figure).Rotor assembly 4 comprises rotor 41 and connecting portion 42, and screw mandrel 21 is fixed on this fixing part 42.
Nut assembly 3 comprises nut 32 and connecting sheet 31.In this embodiment, connecting sheet 31 is made for metallic material, and nut 32 is made for nonmetallic plastics, and connecting sheet 31 is injection molded into one as inserts and nut 32.
Connecting sheet 31 is roughly ring structure, is provided with the cambered outwards some flanges 301 in footpath in the outer edge of its circumference.Some open pores 303 are also set in outer edge simultaneously.
Valve body 12 is roughly tubular structure, and valve core case 11 is welded on the bottom of its tubular.Valve body 12 opening portion is on the outer periphery provided with stepped part 102, and stepped part 102 upper end is provided with some notches 103.On valve body 12 notch 103 setting position and magnitude setting corresponding with the flange 301 on connecting sheet 31, the width of notch 103 is consistent with the width dimensions of flange 301.
In mortor operated valve assembly process, the upper end of first stop component being inserted in nut assembly 3 is outside, again needle screw component 2 is inserted in the endoporus of nut assembly 3, after the auxiliary section, lower end 33 of nut assembly 3 be set with the cylindrical portion, upper end 105 of valve core case 11 coordinate, and the notch 103 on the flange 301 of connecting sheet 31 and the valve body 12 of valve component 1 is engaged, move with the circumference limiting connecting sheet 31.
After nut assembly 3 and valve component 1 have been assembled, by the end 101 of the stepped part 102 of riveting valve body 12, material deformation is made to abut the outer edge of connecting sheet 31, to limit moving axially of connecting sheet 31, on the outer edge of connecting sheet 31 with the riveting material portion of valve body 12 as axially locating portion 302.Nut assembly 3 is made to be fixed on valve body 12 like this.
After nut assembly 3 is fixing with valve component 1 riveting, step surface shell 5 being welded on the stepped part 102 of valve body 12 forms mortor operated valve.Shell 5 and valve component 1 form inner valve pocket.Some open pores 303 on connecting sheet 31 balance the isostasy on connecting sheet 31 in lower valve chamber.
The mortor operated valve Standard more than provided is simple, and can ensure the running precision of valve.
Fig. 6 and Fig. 7 is that another kind of nut assembly provided by the invention is at main apparent direction and the schematic cross-section overlooking direction; Fig. 8 and Fig. 9 is that another kind of valve component provided by the invention is at main apparent direction and the schematic cross-section overlooking direction.
Please refer to Fig. 6-Fig. 9.With preceding solution unlike, the inner hole wall of the auxiliary section 33 of nut 32 offers symmetrically arranged axially extended plane as stop inwall 34, the cylindrical portion 105 of valve core case 11 offers symmetrical plane as stop outer wall 104.
In mortor operated valve assembly process, the lower end of nut assembly 3 is set with the upper end cylindrical of valve core case 11 and coordinates.And make the stop inwall 34 on nut 32 coordinate to limit the rotation of nut assembly 3 with the stop outer wall 104 of valve core case 11, again by the end 101 of the stepped part 102 of riveting valve body 12, material deformation is made to abut the outer edge of connecting sheet 31, to limit moving axially of connecting sheet 31.Nut assembly 3 is made to be fixed on valve body 12 like this.
In the present embodiment, the stop inwall 34 of nut 32 is the rotations realizing limiting nut assembly 3 by plane fit form with the stop outer wall 104 of valve core case 11.The stop inwall 34 of certain nut 32 also can be arranged to concaveconvex structure with the stop outer wall 104 of valve core case 11, realizes same function, does not repeat them here.
In this embodiment, because the bottom, the connecting sheet 31 that the circumferential limiting unit of nut assembly 3 are arranged on nut 32 are relatively stressed less, nut 32 and connecting sheet 31 can be made of one material structure (alleged " integral material structure " here, namely as a single part with materials processing), so both can save the use of metallic material, also connecting sheet can be made to be easier to shaping, and not need to carry out machining, structure is simpler simultaneously.
Figure 10 is that the third nut assembly provided by the invention overlooks the schematic cross-section in direction.
As shown in Figure 10.In this embodiment, nut 32 and connecting sheet 31 are made of one material structure, and the outer rim of connecting sheet 31 has guide surface 305 and faces 306 formations directly.In nut assembly 3 with valve body 12 riveting assembly process, nut assembly 3 face directly 306 with the stability of the inwall Spielpassung retention nut assembly 3 of valve body 12.Abut the guide surface 305 of connecting sheet 31 after the distortion of valve body 12 riveting, make connecting sheet 31 uniform force of plastic materials.
The above is only the description of the preferred implementation of invention; should be understood that; 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 (9)
1. a mortor operated valve, comprise valve component (1), nut assembly (3), needle screw component (2), rotor assembly (4), described valve component (1) comprises valve body (12) and is welded on the valve core case (11) on described valve body (12), the connecting sheet (31) that described nut assembly (3) comprises the plastic nut (32) for installing described needle screw component (2) and is connected with described nut (32), described nut (32) is provided with the auxiliary section (33) coordinated with described valve core case (11), it is characterized in that, described nut assembly (3) is provided with and coordinates to limit circumferential positioning part that described nut assembly (3) circumference rotates and the axially locating portion limiting described nut assembly (3) and move axially with described valve component (1), described valve body (12) is provided with the riveting portion (101) coordinated with described axially locating portion, described nut assembly (3) is fixed on described valve component (1) by riveting.
2. mortor operated valve according to claim 1, is characterized in that, described connecting sheet (31) is ring structure, and described circumferential positioning part and described axially locating portion are arranged on the outer edge of described connecting sheet (31).
3. mortor operated valve according to claim 1, it is characterized in that, described valve body (12) is tubular structure, and the opening portion of its perisporium is provided with stepped part (102), and described riveting portion (101) is arranged on the end of described stepped part (102).
4. mortor operated valve according to claim 3, it is characterized in that, the circumferential positioning part of described connecting sheet (31) is specially outward flange (301), described stepped part (102) is provided with the notch (103) coordinated with described outward flange (301).
5. the mortor operated valve according to any one of claim 1-4, is characterized in that, described connecting sheet (31) is made for metallic material, and with described nut (32) integrated injection molding.
6. mortor operated valve according to claim 1, it is characterized in that, the auxiliary section (33) of described nut (32) is inner hole wall, described circumferential positioning part is the stop inwall (34) be opened on described inner hole wall, described valve core case (11) is provided with the stop outer wall (104) coordinated with described stop inwall (34); Described axially locating portion is arranged on the outer edge of described connecting sheet (31).
7. mortor operated valve according to claim 6, is characterized in that, described axially locating portion is specially the guide surface on the outer edge of described connecting sheet (31).
8. mortor operated valve according to claim 6, is characterized in that, described stop inwall (34) with described stop outer wall (104) for plane coordinates or male-female.
9. the mortor operated valve according to any one of claim 6-8, is characterized in that, described nut (32) and described connecting sheet (31) are integrated material structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003282.5A CN104565392A (en) | 2015-01-05 | 2015-01-05 | Electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003282.5A CN104565392A (en) | 2015-01-05 | 2015-01-05 | Electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565392A true CN104565392A (en) | 2015-04-29 |
Family
ID=53082140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510003282.5A Pending CN104565392A (en) | 2015-01-05 | 2015-01-05 | Electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565392A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883003A (en) * | 2017-12-14 | 2018-04-06 | 浙江中宝自控元件有限公司 | A kind of motor-driven valve for being used to adjust fluid flow |
| WO2019148693A1 (en) * | 2018-01-31 | 2019-08-08 | 浙江三花制冷集团有限公司 | Electric valve and manufacturing method thereof |
| CN110296267A (en) * | 2018-03-23 | 2019-10-01 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN111853252A (en) * | 2019-04-30 | 2020-10-30 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN113339511A (en) * | 2020-03-03 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve nut seat structure and mounting method thereof |
| CN114391076A (en) * | 2020-08-18 | 2022-04-22 | 太平洋工业株式会社 | Electric valve |
| JP2023035814A (en) * | 2021-08-31 | 2023-03-13 | 浙江盾安人工環境股▲ふん▼有限公司 | electronic expansion valve |
| WO2024067455A1 (en) * | 2022-09-29 | 2024-04-04 | 浙江三花汽车零部件有限公司 | Electric valve |
| WO2024067457A1 (en) * | 2022-09-29 | 2024-04-04 | 浙江三花汽车零部件有限公司 | Electric valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
| CN103090024A (en) * | 2011-10-27 | 2013-05-08 | 株式会社鹭宫制作所 | Electric valve |
-
2015
- 2015-01-05 CN CN201510003282.5A patent/CN104565392A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
| CN103090024A (en) * | 2011-10-27 | 2013-05-08 | 株式会社鹭宫制作所 | Electric valve |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883003A (en) * | 2017-12-14 | 2018-04-06 | 浙江中宝自控元件有限公司 | A kind of motor-driven valve for being used to adjust fluid flow |
| CN107883003B (en) * | 2017-12-14 | 2023-05-09 | 浙江中宝自控元件有限公司 | Electric valve for regulating fluid flow |
| KR102313777B1 (en) | 2018-01-31 | 2021-10-15 | 저장 산후아 클라이메이트 앤드 어플라이언스 컨트롤스 그룹 컴퍼니 리미티드 | Electric valve and its manufacturing method |
| WO2019148693A1 (en) * | 2018-01-31 | 2019-08-08 | 浙江三花制冷集团有限公司 | Electric valve and manufacturing method thereof |
| KR20200086718A (en) * | 2018-01-31 | 2020-07-17 | 저장 산후아 클라이메이트 앤드 어플라이언스 컨트롤스 그룹 컴퍼니 리미티드 | Electric valve and its manufacturing method |
| US11313485B2 (en) | 2018-01-31 | 2022-04-26 | Zhejiang Sanhua Climate And Appliance Controls Group Co., Ltd | Electric valve and manufacturing method thereof |
| CN110296267A (en) * | 2018-03-23 | 2019-10-01 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN110296267B (en) * | 2018-03-23 | 2021-02-26 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN111853252A (en) * | 2019-04-30 | 2020-10-30 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2021175028A1 (en) * | 2020-03-03 | 2021-09-10 | 浙江盾安人工环境股份有限公司 | Nut seat structure of electronic expansion valve and mounting method therefor |
| JP2023506686A (en) * | 2020-03-03 | 2023-02-20 | 浙江盾安人工環境股▲ふん▼有限公司 | Nut seat structure of electronic expansion valve and its mounting method |
| CN113339511A (en) * | 2020-03-03 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve nut seat structure and mounting method thereof |
| JP7321374B2 (en) | 2020-03-03 | 2023-08-04 | 浙江盾安人工環境股▲ふん▼有限公司 | Nut seat structure of electronic expansion valve and its mounting method |
| CN114391076A (en) * | 2020-08-18 | 2022-04-22 | 太平洋工业株式会社 | Electric valve |
| CN114391076B (en) * | 2020-08-18 | 2024-05-17 | 太平洋工业株式会社 | Electric valve |
| JP2023035814A (en) * | 2021-08-31 | 2023-03-13 | 浙江盾安人工環境股▲ふん▼有限公司 | electronic expansion valve |
| JP7389850B2 (en) | 2021-08-31 | 2023-11-30 | 浙江盾安人工環境股▲ふん▼有限公司 | electronic expansion valve |
| WO2024067455A1 (en) * | 2022-09-29 | 2024-04-04 | 浙江三花汽车零部件有限公司 | Electric valve |
| WO2024067457A1 (en) * | 2022-09-29 | 2024-04-04 | 浙江三花汽车零部件有限公司 | Electric valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant before: Zhejiang Sanhua Group Co., Ltd. |
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| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |