CN203670814U - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN203670814U CN203670814U CN201320638884.4U CN201320638884U CN203670814U CN 203670814 U CN203670814 U CN 203670814U CN 201320638884 U CN201320638884 U CN 201320638884U CN 203670814 U CN203670814 U CN 203670814U
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- Prior art keywords
- fixed
- needle
- magnet steel
- screw mandrel
- valve
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Abstract
An electronic expansion valve comprises a valve body shell and a valve base. The valve body shell is welded to the valve base. An excitation coil is arranged outside the valve body shell. A connecting pipe is fixedly connected to the bottom of the valve base, and a connecting pipe is fixedly connected to the side wall of the valve base. A spring fixing base is fixed to the top end face of the inner side of the valve body shell, a guide rod is fixed to the spring fixing base, a spring guide rail is fixed to the guide rod, a check spring is arranged on the spring guide rail, a locking part of the check spring is pressed against a magnetic steel check rod, and the magnetic steel check rod is formed on the upper end face of a magnetic steel plastic coating. According to the electronic expansion valve, the radial size of a stop rod is increased, and thus the flexure strength of the magnetic steel check rod is enhanced; meanwhile, because the guide rod is fixed to the spring fixing base inside the valve body shell, forming is conducted through the cold heading technology and the parts are assembled through the buckling-pressing and riveting technologies, the production efficiency of the parts is improved, the assembling speed of the parts is increased, the production efficiency is improved, and equipment investment is reduced.
Description
Technical field:
The utility model relates to the technical field of solenoid valve, more specifically to a kind of electric expansion valve.
Background technique:
At present electric expansion valve is the Important Components of realizing cold medium flux control in refrigeration system between condenser and vaporizer.Follow screw mandrel to realize the adjusting of needle and be generally provided with one in existing electric expansion valve, thereby control the adjusting of flow, and obtaining upper end, electric expansion valve is generally provided with a stopping device, thereby the turning collar of the screw mandrel of restriction, in prior art, general using one follows the lever being fixedly linked with screw mandrel as its stop lever, the generally less while of the width of existing lever and thickness, its upper end was not fixed, and the moment of lever upper end is larger, so thereby lever can run-off the straight distortion cause electric expansion valve to be scrapped for a long time, generally to be fixed on valve shell as the guide rod of fixed stop parts and guide rail now simultaneously, it is subject to environmental factors larger, can make guide rod depart from from valve shell.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and a kind of electric expansion valve is provided, and it has strengthened the radial dimension of lever, has strengthened the resistance to flexure of lever, has increased the working life of electric expansion valve.
Technology solution of the present utility model is as follows:
A kind of electric expansion valve, comprise valve shell and valve seat, valve shell is welded on valve seat, valve shell is provided with electromagnetic coil outward, on the bottom of valve seat, be fixedly connected with inlet tube, on the sidewall of valve seat, be fixedly connected with outer pipe, the top end of described valve shell inner side is fixed with spring fixed seat, on spring fixed seat, be fixed with guide rod, on guide rod, be fixed with spring guide rail, spring guide rail is provided with stop bit spring, and the retainer of stop bit spring is pressed against on magnet steel stop rod, and magnet steel stop rod takes shape on the plastic upper-end surface of magnet steel.
The cross section of described magnet steel stop rod is the thick block of long strip, plastic being fixed on magnet rotor of magnet steel at magnet steel stop rod place, and magnet rotor is located at valve shell inside.
On the plastic madial wall of described magnet steel, fix magnet steel nut, the upper end of magnet steel nut is provided with needle pad, the holding of needle pad magnet steel nut and magnet steel plastic between, on described needle pad, be interspersed with needle, the upper end of needle is fixed with minipad, minipad is pressed against on the upper-end surface of needle pad, described needle upper sleeve has stage clip, the upper end of stage clip is pressed against on needle pad, in described magnet steel nut, be bolted with screw mandrel, the lower end of screw mandrel is fixed on screw mandrel fixed base, screw mandrel endoporus is interspersed with needle, needle is pressed against on the seat of needle hole, needle hole seat is fixed on valve seat and with inlet tube and is sealed connected together.
Described needle, needle hole seat and screw mandrel all adopt cold-heading molding, and valve seat adopts sheet metal forming, all forms step on the outer wall of valve seat upper end, and screw mandrel fixed base has been withheld in the upper end bending of valve seat, on screw mandrel fixed base, is fixed with screw mandrel.
Described screw mandrel and screw mandrel fixed base adopt independent moulding or both cold-headings to be integral molding.
Described guide rod is by riveting or being weldingly fixed on spring fixed seat.
The beneficial effects of the utility model are:
1, it has increased the radial dimension of lever, thereby strengthen the resistance to flexure of lever, guide rod has been fixed on the spring fixed seat of valve shell inside simultaneously, avoided being subject to the impact of environmental factors, be difficult for making guide rod to come off, thereby increased the working life of electric expansion valve.
2, its needle, needle hole and screw mandrel all adopt cold heading technique moulding, adopt needle, needle hole and the screw mandrel compactness of cold heading technique better, it can prevent the appearance of crackle, thereby effective carry out leakproof, and valve seat adopts the moulding of plate integrated punching, no matter be the production and processing speed that cold heading technique moulding or sheet metal forming have been accelerated part, thereby improved manufacturing efficiency.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the screw mandrel of integral type of the present utility model;
Fig. 3 is the structural representation of welding type spring fixed seat of the present utility model;
Fig. 4 is the structural representation of riveted type spring fixed seat of the present utility model;
Fig. 5 is the structural representation of the expansion valve of integral type injection moulding nut of the present utility model;
Fig. 6 is the structural representation of the expansion valve of copper nut of the present utility model;
Fig. 7 is the structural representation of the expansion valve of the one-body molded screw mandrel of cold-heading of the present utility model;
Fig. 8 is the local enlarged diagram in valve seat clinching of the present utility model joint.
In figure: 1, valve shell; 2, electromagnetic coil; 3, spring fixed seat; 4, guide rod; 5, spring guide rail; 6, magnet steel is plastic; 7, stop bit spring; 8, magnet rotor; 9, minipad; 10, needle pad; 11, screw mandrel; 12, stage clip; 13, magnet steel nut; 14, needle; 15, inlet tube; 16, valve seat; 17, outer pipe; 18, needle hole; 19, screw mandrel fixed base; 61, magnet steel stop rod; 71, retainer.
Embodiment:
Embodiment: see Fig. 1, shown in 2, a kind of electric expansion valve, comprise valve shell 1 and valve seat 16, valve shell 1 is welded on valve seat 16, the outer electromagnetic coil 2 that is provided with of valve shell 1, on the bottom of valve seat 16, be fixedly connected with inlet tube 15, on the sidewall of valve seat 16, be fixedly connected with outer pipe 17, it is characterized in that: the top end of described valve shell 1 inner side is fixed with spring fixed seat 3, on spring fixed seat 3, be fixed with guide rod 4, on guide rod 4, be fixed with spring guide rail 5, spring guide rail 5 is provided with stop bit spring 7, the retainer 71 of stop bit spring 7 is pressed against on magnet steel stop rod 61, magnet steel stop rod 61 takes shape on the upper-end surface of magnet steel plastic 6.
The cross section of described magnet steel stop rod 61 is the thick block of long strip, and the magnet steel plastic 6 at magnet steel stop rod 61 places is fixed on magnet rotor 8, and magnet rotor 8 is located at valve shell 1 inside.
On the madial wall of described magnet steel plastic 6, fix magnet steel nut 13, the upper end of magnet steel nut 13 is provided with needle pad 10, 10 holdings of needle pad are between magnet steel nut 13 and magnet steel plastic 6, on described needle pad 10, be interspersed with needle 14, the upper end of needle 14 is fixed with minipad 9, minipad 9 is pressed against on the upper-end surface of needle pad 10, described needle 14 upper sleeves have stage clip 12, the upper end of stage clip 12 is pressed against on needle pad 10, in described magnet steel nut 13, be bolted with screw mandrel 11, the lower end of screw mandrel 11 is fixed on screw mandrel fixed base 19, screw mandrel 11 endoporus are interspersed with needle 14, needle 14 is pressed against on needle hole seat 18, needle hole seat 18 is fixed on valve seat 16 and with inlet tube 15 and is sealed connected together.
Described needle 14, needle hole seat 18 and screw mandrel 11 all adopt cold-heading molding, valve seat 16 adopts sheet metal forming, on the outer wall of valve seat 10 upper ends, all form step, screw mandrel fixed base 19 has been withheld in the upper end bending of valve seat 16, is fixed with screw mandrel 11 on screw mandrel fixed base 19.
Described screw mandrel 11 and screw mandrel fixed base 19 adopt independent moulding or both cold-headings to be integral molding.
Described guide rod 4 is by riveting or be weldingly fixed on spring fixed seat 3.
Working principle: change the lever being originally fixedly connected with magnet rotor 8 into an integrated magnet steel with lever plastic 6, strengthened lever simultaneously and obtained radial dimension, increase contacts with magnet rotor 8 area being connected, thereby has strengthened the resistance to flexure of lever.On the position, top of valve shell 1 inside, settle spring fixed seat, make guide rod be fixed on spring fixed seat, thereby be subject to external influence less, strengthened the protection of guide rod, indirectly increased the use hand life-span of electric expansion valve simultaneously.Described needle 11, needle hole 14 and screw mandrel 4 all adopt cold heading technique moulding, adopt needle 11, needle hole 14 and screw mandrel 4 compactness of cold heading technique better, it can prevent the appearance of crackle, thereby effective carry out leakproof, and valve seat 10 adopts the moulding of plate integrated punching, no matter be the production and processing speed that cold heading technique moulding or sheet metal forming have been accelerated part, thereby improved manufacturing efficiency.
Claims (6)
1. an electric expansion valve, comprise valve shell (1) and valve seat (16), valve shell (1) is welded on valve seat (16), the outer electromagnetic coil (2) that is provided with of valve shell (1), on the bottom of valve seat (16), be fixedly connected with inlet tube (15), on the sidewall of valve seat (16), be fixedly connected with outer pipe (17), it is characterized in that: the top end of described valve shell (1) inner side is fixed with spring fixed seat (3), on spring fixed seat (3), be fixed with guide rod (4), on guide rod (4), be fixed with spring guide rail (5), spring guide rail (5) is provided with stop bit spring (7), the retainer (71) of stop bit spring (7) is pressed against on magnet steel stop rod (61), magnet steel stop rod (61) takes shape on the upper-end surface of magnet steel plastic (6).
2. a kind of electric expansion valve according to claim 1, it is characterized in that: the cross section of described magnet steel stop rod (61) is the thick block of long strip, it is upper that the magnet steel plastic (6) at magnet steel stop rod (61) place is fixed on magnet rotor (8), and magnet rotor (8) is located at valve shell (1) inside.
3. a kind of electric expansion valve according to claim 1, it is characterized in that: on the madial wall of described magnet steel plastic (6), fix magnet steel nut (13), the upper end of magnet steel nut (13) is provided with needle pad (10), needle pad (10) holding is between magnet steel nut (13) and magnet steel plastic (6), on described needle pad (10), be interspersed with needle (14), the upper end of needle (14) is fixed with minipad (9), minipad (9) is pressed against on the upper-end surface of needle pad (10), described needle (14) upper sleeve has stage clip (12), the upper end of stage clip (12) is pressed against on needle pad (10), in described magnet steel nut (13), be bolted with screw mandrel (11), the lower end of screw mandrel (11) is fixed on screw mandrel fixed base (19), screw mandrel (11) endoporus is interspersed with needle (14), needle (14) is pressed against on needle hole seat (18), needle hole seat (18) is fixed on valve seat (16) above and is sealed connected together with inlet tube (15).
4. a kind of electric expansion valve according to claim 3, it is characterized in that: described needle (14), needle hole seat (18) and screw mandrel (11) all adopt cold-heading molding, valve seat (16) adopts sheet metal forming, on the outer wall of valve seat (10) upper end, all form step, screw mandrel fixed base (19) has been withheld in the upper end bending of valve seat (16), is fixed with screw mandrel (11) on screw mandrel fixed base (19).
5. a kind of electric expansion valve according to claim 3, is characterized in that: described screw mandrel (11) and screw mandrel fixed base (19) adopt independent moulding or both cold-headings to be integral molding.
6. a kind of electric expansion valve according to claim 1, is characterized in that: described guide rod (4) is by riveting or be weldingly fixed on spring fixed seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638884.4U CN203670814U (en) | 2013-10-16 | 2013-10-16 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638884.4U CN203670814U (en) | 2013-10-16 | 2013-10-16 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670814U true CN203670814U (en) | 2014-06-25 |
Family
ID=50967112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638884.4U Expired - Fee Related CN203670814U (en) | 2013-10-16 | 2013-10-16 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670814U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369208A (en) * | 2016-08-31 | 2017-02-01 | 浙江新三荣制冷有限公司 | Mute electronic expansion valve |
| CN109780301A (en) * | 2017-11-15 | 2019-05-21 | 浙江盾安机械有限公司 | A kind of valve coil and expansion valve |
| CN113374916A (en) * | 2021-06-28 | 2021-09-10 | 浙江恒森实业集团有限公司 | Positioning support and positioning method of electromagnetic electronic expansion valve |
| WO2021218782A1 (en) * | 2020-04-26 | 2021-11-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
-
2013
- 2013-10-16 CN CN201320638884.4U patent/CN203670814U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369208A (en) * | 2016-08-31 | 2017-02-01 | 浙江新三荣制冷有限公司 | Mute electronic expansion valve |
| CN109780301A (en) * | 2017-11-15 | 2019-05-21 | 浙江盾安机械有限公司 | A kind of valve coil and expansion valve |
| CN109780301B (en) * | 2017-11-15 | 2022-06-17 | 浙江盾安机械有限公司 | Coil and expansion valve for valve |
| WO2021218782A1 (en) * | 2020-04-26 | 2021-11-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN113374916A (en) * | 2021-06-28 | 2021-09-10 | 浙江恒森实业集团有限公司 | Positioning support and positioning method of electromagnetic electronic expansion valve |
| CN113374916B (en) * | 2021-06-28 | 2023-02-10 | 浙江恒森实业集团有限公司 | Positioning support and positioning method of electromagnetic electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |