CN103807486A - Limiting structure for rotor of expansion valve body - Google Patents
Limiting structure for rotor of expansion valve body Download PDFInfo
- Publication number
- CN103807486A CN103807486A CN201410054992.6A CN201410054992A CN103807486A CN 103807486 A CN103807486 A CN 103807486A CN 201410054992 A CN201410054992 A CN 201410054992A CN 103807486 A CN103807486 A CN 103807486A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- valve body
- magnet
- threaded sleeve
- limit structure
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention provides a limiting structure for a rotor of an expansion valve body. The limiting structure is simple, small in size and low in cost. The limiting structure comprises a support, the magnetic rotor and a fixing sleeve with internal threads. The magnetic rotor comprises a magnet sleeve, a threaded casing pipe and a rotating shaft. The threaded casing pipe is arranged in the magnet sleeve, and one end of the threaded casing pipe and the bottom of the magnet sleeve are injected to form an integrated structure. The rotating shaft is arranged in the threaded casing pipe in a penetrating mode. The wall of the periphery of the threaded casing pipe is provided with an external thread section matched with the fixing sleeve threads. The upper end face of the magnet sleeve protrudes and extends outwards to form an upper limiting boss. The lower end face of the magnet sleeve protrudes and extends outwards to form a lower limiting boss. The lower end face of the fixing sleeve protrudes and extends in the radial direction to form a limiting lug. The upper limiting boss and the support are matched to form an upper limiting structure. The lower limiting boss and the limiting lug are matched to form a lower limiting structure.
Description
Technical field
The invention belongs to expansion valve preparing technical field, relate to a kind of limit structure of expanding valve body rotor.
Background technique
Electric expansion valve is to utilize coil drive magnetic rotor component to rotate, and the rotating operation of magnetic rotor component is converted into moving up and down of screw mandrel.Drive the needle being attached thereto to rise or decline by screw mandrel, thereby control the flow of electric expansion valve.Electromagnetic expanding valve is provided with the valve body with valve chamber, and being fixed on cylindric on valve body has bottom shell body, and the axially magnet rotor of lifting is installed in above-mentioned housing.How many direct relations of ascending, descending of magnet rotor the folding size of valve, thereby reach the control to cold medium flux.Conventionally, need in housing, be provided with limit structure and limit the ascending, descending distance of magnet rotor.As shown in Figure 1, magnet rotor comprises magnet sleeve 1, threaded sleeve 2 and rotating shaft 3 to conventional limit structure; The inner side of one end of threaded sleeve 2 is provided with the opening for accommodating rotating shaft 3, and the outside of this one end is provided with external thread section; The other end and described magnet sleeve 1 integrated injection molding are shaped, and protrude out described magnet sleeve 1; In described housing 1, be also provided with the fixed cover 4 with the thread section screw-thread fit of threaded sleeve 2; Described threaded sleeve 2 protrudes out on the other end of magnet sleeve 1 and is arranged with spring 5; Also be provided with support 6, support 6 is arranged on the break of valve body; This support 6 forms limit structure with described spring 5, thus the ascending, descending distance of restriction magnet rotor.
But mainly there is following shortcoming in this limit structure: 1, this limit structure adopts spring housing to be located on the threaded sleeve protruding out, and match with the support of housing bottom, make the entire length of whole valve body longer, and due to machining accuracy impact, easily produce the situations such as stuck; 2, its valve inner number of spare parts is more, and complex structure has increased Assembly of the parts difficulty, has increased the cost of product.
Therefore, how addressing the above problem, is the content that those skilled in the art will study.
Summary of the invention
The invention provides a kind of limit structure of simple in structure, volume is little, cost is low expanding valve body rotor, effectively to overcome the technological deficiency existing in existing design.
For achieving the above object, the technical solution used in the present invention is: a kind of limit structure of expanding valve body rotor, comprises support, magnet rotor and be with female fixed cover; Described magnet rotor comprises magnet sleeve, threaded sleeve and rotating shaft; Described threaded sleeve is located in magnet sleeve, and at the bottom of its one end and described magnet sleeve cylinder, injection molded is structure as a whole; Described rotating shaft is arranged in described threaded sleeve; The periphery wall of described threaded sleeve is provided with external thread section, this external thread section and described fixed cover screw-thread fit; On the upper-end surface of described magnet sleeve, outwards protrude out and be provided with upper limit boss, on the lower end surface of described magnet sleeve, outwards protrude out and be provided with lower limit boss; On the lower end surface of described fixed cover, radial projection is provided with spacing lug; Described upper limit boss and described support assorted form upper limit structure; Described lower limit boss coordinates formation lower limit structure with described spacing lug.
Preferred technological scheme is: described upper limit boss is two, is symmetricly set on the upper-end surface of described magnet sleeve.
Preferred technological scheme is: described spacing lug is the ledge arrangement radially protruding out on the circumference of described fixed cover lower end surface.
Preferred technological scheme is: described spacing lug is the ledge arrangement radially protruding out on a section of circumference of described fixed cover lower end surface.
Preferred technological scheme is: described support is arranged on the break of described expansion valve.
Preferred technological scheme is: described rotating shaft is arranged in described threaded sleeve; Its end protrudes out described threaded sleeve and is fixed on described threaded sleeve through a rotating shaft axle sleeve.
Preferred technological scheme is: between described rotating shaft axle sleeve and the end face of described threaded sleeve, be provided with pad.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, the present invention adopts, at the upper and lower end face of magnet sleeve, upper and lower spacing boss is set respectively, and upper limit boss coordinates with the support arranging on break (playing position-limiting action), form upper limit structure, lower limit boss coordinates formation lower limit structure with the spacing lug on fixed cover, and then the position that screws of limiting screw thread, control valve is for the pretension amount of valve port, compared with prior art, not only simple in structure, also greatly reduced the size of valve body, and can prevent due to close that valve tension causes to drive valve stuck and difficult.
2, the present invention is simple in structure, and volume is little, greatly reduces cost of production, has saved raw material.
Accompanying drawing explanation
Accompanying drawing 2 is structural representation of the present invention;
Accompanying drawing 3 is the view of the present invention in the time that valve port is closed;
Accompanying drawing 4 is the view of the present invention in the time of valve port folding;
Accompanying drawing 5 is the structural representation of magnet sleeve for the present invention.
In above accompanying drawing: 1, magnet sleeve; 11, upper limit boss; 12, lower limit boss; 2, threaded sleeve; 3, rotating shaft; 31, rotating shaft axle sleeve; 4, fixed cover; 41, spacing lug; 5, spring; 6, support; 8, pad.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Refer to Fig. 2 to Fig. 5.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., all contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, all should still drop in the scope that disclosed technology contents will contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the present invention without essence.
Embodiment:
As shown in Figures 2 to 5, a kind of limit structure of expanding valve body rotor, comprises support 6, magnet rotor and is with female fixed cover 4; Described magnet rotor comprises magnet sleeve 1, threaded sleeve 2 and rotating shaft 3; Described threaded sleeve 2 is located in magnet sleeve 1, and at the bottom of 1 of its one end and described magnet sleeve, injection molded is structure as a whole; Described rotating shaft 3 is arranged in described threaded sleeve 2; The periphery wall of described threaded sleeve 2 is provided with external thread section, this external thread section and described fixed cover 4 screw-thread fit; On the upper-end surface of described magnet sleeve 1, outwards protrude out and be provided with upper limit boss 11, on the lower end surface of described magnet sleeve 1, outwards protrude out and be provided with lower limit boss 12; On the lower end surface of described fixed cover 4, radial projection is provided with spacing lug 41; Described upper limit boss 11 coordinates formation upper limit structure with described support 7; Described lower limit boss 12 coordinates formation lower limit structure with described spacing lug 41.
Described upper limit boss 11 is two, is symmetricly set on the upper-end surface of described magnet sleeve 1.
The ledge arrangement radially protruding out on the circumference that described spacing lug 41 is described fixed cover 4 lower end surfaces.
The ledge arrangement radially protruding out on one section of the circumference that described spacing lug 41 is described fixed cover 4 lower end surfaces.
Described support 6 is arranged on the break of described expansion valve.
Described rotating shaft 3 is arranged in described threaded sleeve 2; Its end protrudes out described threaded sleeve 2 and is fixed on described threaded sleeve through a rotating shaft axle sleeve 31.
Between described rotating shaft axle sleeve 31 and the end face of described threaded sleeve 2, be provided with pad 8.
Invention employing is upper magnet sleeve, lower end surface arranges respectively, lower limit boss, and upper limit boss coordinates with the support arranging on break (playing position-limiting action), form upper limit structure, lower limit boss coordinates formation lower limit structure with the spacing lug on fixed cover, and then the position that screws of limiting screw thread, control valve is for the pretension amount of valve port, compared with prior art, not only simple in structure, also greatly reduce the size of valve body, volume is little, greatly reduce cost of production, raw material are saved, and can prevent due to close that valve tension causes to drive valve stuck and difficult.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a limit structure for expanding valve body rotor, comprises support (6), magnet rotor and is with female fixed cover (4); Described magnet rotor comprises magnet sleeve (1), threaded sleeve (2) and rotating shaft (3); It is characterized in that: described threaded sleeve (2) is located in magnet sleeve (1), its one end and described magnet sleeve (1) cylinder end injection molded are structure as a whole; Described rotating shaft (3) is arranged in described threaded sleeve (2); The periphery wall of described threaded sleeve (2) is provided with external thread section, this external thread section and described fixed cover (4) screw-thread fit; On the upper-end surface of described magnet sleeve (1), outwards protrude out and be provided with upper limit boss (11), on the lower end surface of described magnet sleeve (1), outwards protrude out and be provided with lower limit boss (12); On the lower end surface of described fixed cover (4), radial projection is provided with spacing lug (41); Described upper limit boss (11) coordinates formation upper limit structure with described support (7); Described lower limit boss (12) coordinates formation lower limit structure with described spacing lug (41).
2. the limit structure of expanding valve body rotor according to claim 1, is characterized in that: described upper limit boss (11) is two, is symmetricly set on the upper-end surface of described magnet sleeve (1).
3. the limit structure of expanding valve body rotor according to claim 1, is characterized in that: the ledge arrangement radially protruding out on the circumference that described spacing lug (41) is described fixed cover (4) lower end surface.
4. the limit structure of expanding valve body rotor according to claim 1, is characterized in that: the ledge arrangement radially protruding out on a section of the circumference that described spacing lug (41) is described fixed cover (4) lower end surface.
5. the limit structure of expanding valve body rotor according to claim 1, is characterized in that: described support (6) is arranged on the break of described expansion valve.
6. the limit structure of expanding valve body rotor according to claim 1, is characterized in that: described rotating shaft (3) is arranged in described threaded sleeve (2); Its end protrudes out described threaded sleeve (2) and is fixed on described threaded sleeve through a rotating shaft axle sleeve (31).
7. the limit structure of expanding valve body rotor according to claim 6, is characterized in that: between described rotating shaft axle sleeve (31) and the end face of described threaded sleeve (2), be provided with pad (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054992.6A CN103807486A (en) | 2014-02-19 | 2014-02-19 | Limiting structure for rotor of expansion valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054992.6A CN103807486A (en) | 2014-02-19 | 2014-02-19 | Limiting structure for rotor of expansion valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103807486A true CN103807486A (en) | 2014-05-21 |
Family
ID=50704667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054992.6A Pending CN103807486A (en) | 2014-02-19 | 2014-02-19 | Limiting structure for rotor of expansion valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807486A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061363A (en) * | 2014-06-11 | 2014-09-24 | 珠海格力电器股份有限公司 | Limit structure and electronic expansion valve |
| CN104482274A (en) * | 2014-10-28 | 2015-04-01 | 珠海格力电器股份有限公司 | Electronic expansion valve |
| CN108386585A (en) * | 2018-03-13 | 2018-08-10 | 珠海励高精工制造有限公司 | Electric expansion valve and air conditioner |
| CN110529608A (en) * | 2018-05-25 | 2019-12-03 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN110805699A (en) * | 2019-11-22 | 2020-02-18 | 东台市高科技术创业园有限公司 | Electronic expansion valve for refrigerating system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220614A (en) * | 1997-02-05 | 1998-08-21 | Denso Corp | Electric control valve |
| CN1439832A (en) * | 2002-02-23 | 2003-09-03 | 浙江三花集团有限公司 | Electronic expansion valve limiters |
| CN2573812Y (en) * | 2002-09-29 | 2003-09-17 | 浙江三花集团有限公司 | Magnetic rotor structure of solenoid valve |
| CN2607486Y (en) * | 2003-03-26 | 2004-03-24 | 浙江三花集团有限公司 | Electronic expansion valve |
| CN2656749Y (en) * | 2003-06-17 | 2004-11-17 | 浙江三花集团有限公司 | Rotary electromagnetic valve body structure |
| CN203743578U (en) * | 2014-02-19 | 2014-07-30 | 碧茂科技（苏州）有限公司 | Limiting structure of expansion-valve valve body rotor |
-
2014
- 2014-02-19 CN CN201410054992.6A patent/CN103807486A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220614A (en) * | 1997-02-05 | 1998-08-21 | Denso Corp | Electric control valve |
| CN1439832A (en) * | 2002-02-23 | 2003-09-03 | 浙江三花集团有限公司 | Electronic expansion valve limiters |
| CN2573812Y (en) * | 2002-09-29 | 2003-09-17 | 浙江三花集团有限公司 | Magnetic rotor structure of solenoid valve |
| CN2607486Y (en) * | 2003-03-26 | 2004-03-24 | 浙江三花集团有限公司 | Electronic expansion valve |
| CN2656749Y (en) * | 2003-06-17 | 2004-11-17 | 浙江三花集团有限公司 | Rotary electromagnetic valve body structure |
| CN203743578U (en) * | 2014-02-19 | 2014-07-30 | 碧茂科技（苏州）有限公司 | Limiting structure of expansion-valve valve body rotor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061363A (en) * | 2014-06-11 | 2014-09-24 | 珠海格力电器股份有限公司 | Limit structure and electronic expansion valve |
| CN104482274A (en) * | 2014-10-28 | 2015-04-01 | 珠海格力电器股份有限公司 | Electronic expansion valve |
| CN104482274B (en) * | 2014-10-28 | 2016-09-14 | 珠海格力电器股份有限公司 | Electric expansion valve |
| CN108386585A (en) * | 2018-03-13 | 2018-08-10 | 珠海励高精工制造有限公司 | Electric expansion valve and air conditioner |
| CN110529608A (en) * | 2018-05-25 | 2019-12-03 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN110805699A (en) * | 2019-11-22 | 2020-02-18 | 东台市高科技术创业园有限公司 | Electronic expansion valve for refrigerating system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |