CN117128349A - Method for manufacturing electric valve body and electric valve body - Google Patents
Method for manufacturing electric valve body and electric valve body Download PDFInfo
- Publication number
- CN117128349A CN117128349A CN202311024635.0A CN202311024635A CN117128349A CN 117128349 A CN117128349 A CN 117128349A CN 202311024635 A CN202311024635 A CN 202311024635A CN 117128349 A CN117128349 A CN 117128349A
- Authority
- CN
- China
- Prior art keywords
- shell
- positioning sleeve
- valve body
- manufacturing
- valve seat
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 9
- 239000003507 refrigerant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a manufacturing method of an electric valve body and the electric valve body, wherein the manufacturing method of the electric valve body comprises the following steps: providing a valve seat, wherein a positioning sleeve is arranged inside one end of the valve seat, a fixing body is arranged outside the positioning sleeve, and a slit is formed between the inner surface of the fixing body and the positioning sleeve; providing a shell, wherein one end of the shell is open, and the other end of the shell is closed; inserting one end of the opening of the shell into a slit between the inner surface of the fixed body of the valve seat and the positioning sleeve; and plastic is injected between the fixed body of the valve seat and the shell, and the fixed body and the shell are fixed into a whole, so that a welding step is not needed, the manufacturing cost is reduced, and the production efficiency is improved.
Description
[ field of technology ]
The invention belongs to the field of machine manufacturing, and particularly relates to a manufacturing method of an electric valve body and the electric valve body.
[ background Art ]
The prior art related to the present invention can be seen from chinese patent 00800383.1, 201110184918.2, 201710292756.1 and 202211319213.1, which disclose a structure of an electric valve used in a refrigerating apparatus such as an air conditioner and a refrigerator for controlling a flow rate of a refrigerant or controlling opening and closing of a flow path, wherein the electric valve disclosed in the patents includes a housing having a rotor inside and an exciting coil (stator) outside, and the rotor inside the housing is connected to a valve needle through a screw and nut structure, and in operation, the rotor is driven to rotate by the exciting coil, and the rotational movement is converted into the up-and-down movement of the valve needle through the screw and nut structure, thereby adjusting the position of the valve needle relative to the valve port, thereby realizing the flow rate control of the refrigerant or the opening and closing control of the flow path, which is described in detail in the' 00800383.1 patent. In practice, the housing (e.g., element 22 of FIG. 1 of 00800383.1) is secured to other structure of the electrically operated valve by welding to prevent leakage of liquid or gaseous refrigerant from the interior of the housing, as described in the 201110184918.2, 201710292756.1 and 202211319213.1 patents. However, in the actual manufacturing process, because the size of the component is smaller, only special welding equipment or a special welding robot can be used in welding, and air tightness inspection is needed after the welding is completed, so that the manufacturing cost is too high and the efficiency is too low, and therefore, a more concise way for fixing the air tightness of the shell to other structures of the electric valve is needed to be provided.
[ invention ]
The invention aims to provide a manufacturing method of an electric valve body and the electric valve body, which are used for solving the problems of high manufacturing cost and low efficiency caused by the fact that a shell is fixed in a welding mode in the prior art.
In order to achieve the above object, the present invention provides a method for manufacturing an electric valve body, comprising the steps of:
providing a valve seat, wherein a positioning sleeve is arranged inside one end of the valve seat, a fixing body is arranged outside the positioning sleeve, and a slit is formed between the inner surface of the fixing body and the positioning sleeve;
providing a shell, wherein one end of the shell is open, and the other end of the shell is closed;
inserting one end of the opening of the shell into a slit between the inner surface of the fixed body of the valve seat and the positioning sleeve;
and injecting plastic between the valve seat fixing body and the shell to fix the fixing body and the shell into a whole.
According to the main characteristics, one end of the opening of the shell is connected with the positioning sleeve in a tight fit manner.
According to the above main feature, the method further comprises providing a recess or a space on the outer surface of the open end of the housing, such that the plastic fills the recess or the space when the plastic is injected.
According to the main characteristics, the method further comprises the step of arranging a through hole at one end of the opening of the shell, arranging a groove on the surface of the fixing body, which is opposite to the positioning sleeve and the shell, and filling the plastic into the groove.
According to the main features, the method further comprises providing a sealing ring, and arranging a containing groove in the positioning sleeve, wherein the sealing ring is contained in the containing groove, and the other end face of the sealing ring is abutted against the inner surface of the shell.
In order to achieve the above object, the present invention provides an electric valve body, which comprises a valve seat and a housing, wherein a positioning sleeve is arranged inside one end of the valve seat, a fixing body is arranged outside the positioning sleeve, and a slit is formed between the inner surface of the fixing body and the positioning sleeve; and one end of the shell is open, the other end of the shell is closed, one end of the shell opening is accommodated in a slit between the inner surface of the fixed body and the positioning sleeve, and a plastic part for connecting the fixed body and the shell is arranged in the slit between the fixed body and the shell.
According to the main characteristics, the outer surface of one end of the opening of the shell is provided with grooves or interval depressions.
According to the main characteristics, the positioning sleeve protrudes out of the fixing body, a containing groove is formed in the protruding portion, a sealing ring is arranged in the containing groove, and the other end face of the sealing ring is abutted against the inner surface of the shell.
According to the main characteristics, one end of the opening of the shell is provided with a through hole, the surface of the fixing body, which is opposite to the positioning sleeve and the shell, is provided with a groove, and the plastic part is correspondingly provided with a protrusion protruding into the groove.
According to the main features, the valve seat is made of an aluminum alloy material, and the housing is made of a stainless steel material.
Compared with the prior art, the invention ensures the airtight connection of the shell and the valve seat by arranging the spaced positioning sleeve and the fixed body at one end of the valve seat and inserting one end of the shell opening between the positioning sleeve and the fixed body and then fixing the fixed body and the shell into a whole in a manner of filling plastic between the fixed body and the shell, thus being more beneficial to reducing the manufacturing cost and improving the production efficiency without adopting a welding step.
[ description of the drawings ]
Fig. 1 is a schematic cross-sectional view of an electrically operated valve body embodying the present invention.
Fig. 2 is a partial enlarged view at a in fig. 1.
[ detailed description ] of the invention
Referring to fig. 1 to 2, in order to illustrate a structure of an electric valve body of the present invention, the present invention provides a method for manufacturing an electric valve body, the method comprises the following steps:
providing a valve seat 10, wherein a positioning sleeve 101 is arranged inside one end of the valve seat 10, a fixed body 100 is arranged outside the positioning sleeve 101, and a slit (not numbered) is formed between the inner surface of the fixed body 100 and the positioning sleeve 101;
providing a shell 11, wherein one end of the shell 11 is open, and the other end is closed;
inserting one end of the opening of the housing 11 into a slit between the inner surface of the fixed body 100 of the valve seat 10 and the positioning sleeve 101;
plastic is injected between the fixing body 100 of the valve seat 10 and the housing 11 to fix the fixing body 100 and the housing 11 as one body.
In practice, the open end of the housing 11 is connected to the positioning sleeve 101 in a tight fit.
The method further includes providing recesses (not shown) in the outer surface of the open end of the housing 11, such that the recesses are filled with plastic during injection.
Alternatively, the method further comprises providing a through hole 110 at the open end of the housing 11, providing a groove (not numbered) on the surface of the fixing body opposite to the positioning sleeve and the housing, and filling the groove with the plastic.
In addition, the method further includes providing a sealing ring 18, and providing a receiving groove (not numbered) in the positioning sleeve 101, where the sealing ring 18 is received in the receiving groove, and the other end surface of the sealing ring abuts against the inner surface of the housing 11.
In order to achieve the above-mentioned objective, the present invention provides an electric valve body, which comprises a valve seat 10 and a housing 11, wherein a positioning sleeve 101 is disposed inside one end of the valve seat 10, a fixing body 100 is disposed outside the positioning sleeve 101, and a slit is formed between the inner surface of the fixing body 100 and the positioning sleeve 101; the casing has one end open and the other end closed, one end of the casing 11 open is accommodated in a slit between the inner surface of the fixing body 100 and the positioning sleeve 101, and a plastic part for connecting the fixing body 100 and the casing 11 is arranged in the slit between them.
In particular embodiments, the outer surface of the open end of the housing 11 is provided with grooves or spaced depressions.
In addition, the positioning sleeve 101 protrudes from the fixing body 100, and a receiving groove is formed in the protruding portion, a sealing ring 18 is disposed in the receiving groove, and the other end face of the sealing ring abuts against the inner surface of the housing 11.
Furthermore, a through hole 110 is provided at one end of the opening of the housing 11, a groove is provided on the surface of the fixing body opposite to the positioning sleeve and the housing, and the plastic piece 19 is correspondingly provided with a protrusion protruding into the groove, i.e. the plastic is filled into the groove. Also, the valve seat 10 is made of an aluminum alloy material, and the housing 11 is made of a stainless steel material.
The elements of the motor-driven valve, such as stator (not shown), rotor 12, rotor shaft 13, needle 15, and screw and nut structure 14, are described in more detail in the prior art and are not described in detail herein. The first bearings 16 and the second bearings 17 are arranged at the two ends of the rotor shaft 13, so that the radial disturbance of the rotor shaft 13 is reduced, noise is reduced, abrasion between the rotor shaft 13 and other objects can be avoided, and other impurities are avoided.
Compared with the prior art, the invention ensures the airtight connection of the shell and the valve seat by arranging the spaced positioning sleeve and the fixed body at one end of the valve seat and inserting one end of the shell opening between the positioning sleeve and the fixed body and then fixing the fixed body and the shell into a whole in a manner of filling plastic between the fixed body and the shell, thus being more beneficial to reducing the manufacturing cost and improving the production efficiency without adopting a welding step.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.
Claims (10)
1. A method for manufacturing an electric valve body, which is characterized in that: the manufacturing method of the electric valve body comprises the following steps:
providing a valve seat, wherein a positioning sleeve is arranged inside one end of the valve seat, a fixing body is arranged outside the positioning sleeve, and a slit is formed between the inner surface of the fixing body and the positioning sleeve;
providing a shell, wherein one end of the shell is open, and the other end of the shell is closed;
inserting one end of the opening of the shell into a slit formed between the inner surface of the fixed body of the valve seat and the positioning sleeve;
and injecting plastic between the fixing body of the valve seat and the shell, and fixing the fixing body and the shell into a whole.
2. The method of manufacturing an electrically operated valve body according to claim 1, wherein: one end of the opening of the shell is connected with the positioning sleeve in an excessively tight fit mode.
3. The method of manufacturing an electrically operated valve body according to claim 2, wherein: the method further includes providing a recess or spaced depressions in the outer surface of the open end of the housing.
4. A method of manufacturing an electrically operated valve body as set forth in claim 3, wherein: the method further comprises the step of arranging a through hole at one end of the opening of the shell, arranging a groove on the surface of the fixing body, which is opposite to the positioning sleeve and the shell, and filling the plastic into the groove.
5. The method of manufacturing an electrically operated valve body according to claim 4, wherein: the method further comprises the steps of providing a sealing ring, arranging a containing groove in the positioning sleeve, wherein the sealing ring is contained in the containing groove, and the other end face of the sealing ring is abutted against the inner surface of the shell.
6. An electric valve body, the electric valve body includes disk seat and casing, its characterized in that: a positioning sleeve is arranged inside one end of the valve seat, a fixing body is arranged outside the positioning sleeve, and a slit is formed between the inner surface of the fixing body and the positioning sleeve; and one end of the shell is open, the other end of the shell is closed, one end of the shell opening is accommodated in a slit between the inner surface of the fixed body and the positioning sleeve, and a plastic part for connecting the fixed body and the shell is arranged in the slit between the fixed body and the shell.
7. The electrically operated valve body of claim 6, wherein: the outer surface of one end of the opening of the shell is provided with grooves or alternate depressions.
8. The electrically operated valve body of claim 6, wherein: the positioning sleeve protrudes out of the fixing body, a containing groove is formed in the protruding portion, a sealing ring is arranged in the containing groove, and the other end face of the sealing ring is abutted to the inner surface of the shell.
9. The electrically operated valve body of claim 6, wherein: the shell opening one end is equipped with the through-hole, and the fixed body is equipped with the recess with the surface that positioning sleeve is relative with the casing, the plastic part corresponds to be equipped with the protrusion that stretches into in the recess.
10. The electrically operated valve body of claim 6, wherein: the valve seat is made of an aluminum alloy material, and the shell is made of a stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311024635.0A CN117128349A (en) | 2023-08-14 | 2023-08-14 | Method for manufacturing electric valve body and electric valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311024635.0A CN117128349A (en) | 2023-08-14 | 2023-08-14 | Method for manufacturing electric valve body and electric valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117128349A true CN117128349A (en) | 2023-11-28 |
Family
ID=88860912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311024635.0A Pending CN117128349A (en) | 2023-08-14 | 2023-08-14 | Method for manufacturing electric valve body and electric valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117128349A (en) |
-
2023
- 2023-08-14 CN CN202311024635.0A patent/CN117128349A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |