CN101201116A - Novel electronic expansion valve - Google Patents
Novel electronic expansion valve Download PDFInfo
- Publication number
- CN101201116A CN101201116A CNA2006101300102A CN200610130010A CN101201116A CN 101201116 A CN101201116 A CN 101201116A CN A2006101300102 A CNA2006101300102 A CN A2006101300102A CN 200610130010 A CN200610130010 A CN 200610130010A CN 101201116 A CN101201116 A CN 101201116A
- Authority
- CN
- China
- Prior art keywords
- expansion valve
- electronic expansion
- valve rod
- valve
- novel electronic
- 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
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000005057 refrigeration Methods 0.000 claims description 23
- 238000004378 air conditioning Methods 0.000 abstract description 6
- 239000012595 freezing medium Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 17
- 239000006200 vaporizer Substances 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention relates to a novel electronic expansion valve used for cooling, air conditioning and hot pump system. The invention aims at improving a drive mode and a displacement transmitting structure of the electronic expansion valve. The electronic expansion valve of the invention generates a magnetic field to lead a magnetostriction material drive rod to stretch to put a displacement transmitting rod (5) to move when a current is pumped into a loop (8). The displacement transmitting rod (5) then pushes a pushing valve rod (3) to move along a rotary shaft(4) to lead the distance between the valve rod (3) and a liquid inlet; thereby leading the current area of a freezing medium to be changed. Adjusting the current in the loop (8) can control the flow of the freezing medium.
Description
Technical field
The present invention relates to a kind ofly to be used to freeze, the electric expansion valve of air-conditioning, heat pump.Can be according to the temperature control flows of refrigeration agent flow to the refrigeration agent of vaporizer.
Background technique
The building block of mechanical compression type refrigeration, air-conditioning, heat pump is compressor, condenser, expansion valve and vaporizer.Refrigeration agent evaporates the gasification refrigeration under the vaporizer mesolow, refrigerant vapor is boosted by compressor and is delivered to condenser, and heat release condensation liquefaction under the condenser mesohigh, liquid refrigerant enter vaporizer and carry out next one circulation after the expansion valve step-down.
The effect of expansion valve is that control flows to the flow of the refrigeration agent of vaporizer by condenser, makes condenser enter the refrigerant flow of vaporizer and compressor through expansion valve and aspirates the refrigerant flow that flows to condenser be complementary from vaporizer.
Expansion valve has heating power expansion valve and electric expansion valve two big classes usually.Heating power expansion valve is surveyed the temperature of refrigeration agent by temperature sensing medium, and the pressure that is converted to temperature sensing medium comes the aperture of variable expansion valve and the flow of refrigeration agent, and the amplitude of accommodation is relatively little, and time lag is bigger.Electric expansion valve then is a temperature of surveying refrigeration agent by the electric or magnetic sensor, and with the aperture of electric executing part variable expansion valve and the flow of refrigeration agent, regulation range is big, is swift in response.When the refrigerating capacity or the heating capacity amplitude of accommodation of refrigeration, air-conditioning, heat pump are bigger, or cryogenic temperature, heat the variation of temperature scope when big, generally need to adopt electric expansion valve.
The electric executing part of electric expansion valve is generally stepper motor and electromagnet at present.Adopting stepper motor is the electronic expansion valve controls precision height of power unit, but complex structure; The employing electromagnet is that the electronic expansion valve arrangement of power unit is simple relatively, but control accuracy is low, and is easy to produce vibration.
Summary of the invention
In view of above problem, the purpose of this invention is to provide that a kind of structure is simple, also novel electronic expansion valve preferably of control accuracy.
Novel electronic expansion valve of the present invention is that employing magnetostriction materials driveshaft is a power unit, promptly when feeding electric current in the coil, produce magnetic field, make the elongation of magnetostriction materials driveshaft, promote displacement and transmit the bar action, displacement transmission bar promotes valve rod again and moves around the shaft, makes the variable in distance of valve rod and liquid entering hole, thereby the circulation area of refrigeration agent is changed.The size of electric current in the regulating winding can be controlled the circulation area of refrigeration agent and the flow of refrigeration agent quickly and accurately.
In addition, according to the actual use occasion of electric expansion valve, the magnetostriction materials of driveshaft can be common magnetostriction materials, also can be super magnetostriction materials; The surface of contact of valve rod and liquid entering hole can be the plane, also can be sphere, can also be the conical surface; The valve rod rotating shaft can be positioned at the appropriate location of valve rod; The contact position of displacement transmission bar and valve rod also can flexible arrangement.
Description of drawings
Fig. 1 is the sectional view when not feeding electric current in the coil of novel electronic expansion valve of the present invention.
Fig. 2 is the sectional view when feeding electric current in the coil of novel electronic expansion valve of the present invention.
Among the figure
Bar is transmitted in 1 valve body, 2 springs, 3 valve rods, 4 rotating shafts, 5 displacements
6 magnetostriction materials driveshafts, 7 upper end caps, 8 coils, 9 urceolus
10 lower end caps 11 are regulated bolt
Embodiment
Liquid refrigerant enters electric expansion valve by liquid entering hole.When refrigeration, air-conditioning, heat pump need bigger refrigerant flow, obstructed electric current in the coil 8 in the electric expansion valve, the magnetostriction materials driveshaft 6 of electric expansion valve is in the state shown in Fig. 1, this moment refrigeration agent the circulation area maximum.
When the working conditions change of refrigeration, air-conditioning, heat pump, in the time of the flow of refrigeration agent need being turned down, then feed electric current in the coil 8, produce magnetic field.Magnetostriction materials driveshaft 6 promotes displacement transmission bar 5 and moves up, thereby valve rod 3 is rotated counterclockwise along rotating shaft 4 at the action of a magnetic field lower edge axial elongation, and valve rod 3 reduces with the distance of liquid entering hole, and the circulation area of refrigeration agent reduces, and the flow of refrigeration agent reduces.By the size of current in the control coil 8, can fast, significantly, accurately regulate the circulation area of novel electronic expansion valve and the flow of refrigeration agent.
The effect of spring 2 has two: the one, and make magnetostriction materials driveshaft 6 that certain pretightening force be arranged, to bring into play the performance of magnetostriction materials better; The 2nd, prevent that refrigeration agent from impacting valve rod 3 and forming vibration.
Regulate bolt 11 and can be used for the suffered pretightening force size of the stroke of regulating valve stem 3 and magnetostriction materials driveshaft 6.
Claims (5)
1. a novel electronic expansion valve is characterized in that, valve rod adopts the magnetostriction materials driveshaft to drive, and valve rod makes the circulation area of electric expansion valve and the flow of refrigeration agent all have bigger regulation range simultaneously as the displacement amplifier unit of driveshaft.
2. novel electronic expansion valve as claimed in claim 1 is characterized in that, the magnetostriction materials of driveshaft can be common magnetostriction materials, also can be super magnetostriction materials.
3. novel electronic expansion valve as claimed in claim 1 is characterized in that, the surface of contact of valve rod and liquid entering hole can be the plane, also can be sphere, can also be the conical surface.
4. novel electronic expansion valve as claimed in claim 1 is characterized in that, the contact position that bar and valve rod are transmitted in displacement can be positioned at the valve rod end, also can be positioned at other positions on the valve rod.
5. novel electronic expansion valve as claimed in claim 1 is characterized in that, the position of valve rod rotating shaft can be positioned in the middle of the valve rod, also can be positioned at other positions of valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101300102A CN101201116A (en) | 2006-12-11 | 2006-12-11 | Novel electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101300102A CN101201116A (en) | 2006-12-11 | 2006-12-11 | Novel electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101201116A true CN101201116A (en) | 2008-06-18 |
Family
ID=39516411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101300102A Pending CN101201116A (en) | 2006-12-11 | 2006-12-11 | Novel electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101201116A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875039A (en) * | 2010-03-19 | 2010-11-03 | 中南大学 | Magnetostrictive rod drive-based dispensing valve with flexible magnifying arm |
| CN109813013A (en) * | 2018-03-26 | 2019-05-28 | 长城汽车股份有限公司 | Expansion valve and air-conditioning system |
| CN110630753A (en) * | 2019-10-11 | 2019-12-31 | 谢曲坚 | Magnetostrictive ultrasonic cleaning valve based on reinforced sealing of inner valve nozzle |
| CN114278401A (en) * | 2020-09-28 | 2022-04-05 | 中国航发商用航空发动机有限责任公司 | Turbine casing of turbine engine and turbine engine |
-
2006
- 2006-12-11 CN CNA2006101300102A patent/CN101201116A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875039A (en) * | 2010-03-19 | 2010-11-03 | 中南大学 | Magnetostrictive rod drive-based dispensing valve with flexible magnifying arm |
| CN101875039B (en) * | 2010-03-19 | 2012-07-25 | 中南大学 | Magnetostrictive rod drive-based dispensing valve with flexible magnifying arm |
| CN109813013A (en) * | 2018-03-26 | 2019-05-28 | 长城汽车股份有限公司 | Expansion valve and air-conditioning system |
| CN109813013B (en) * | 2018-03-26 | 2021-03-02 | 长城汽车股份有限公司 | Expansion valve and air conditioning system |
| CN110630753A (en) * | 2019-10-11 | 2019-12-31 | 谢曲坚 | Magnetostrictive ultrasonic cleaning valve based on reinforced sealing of inner valve nozzle |
| CN114278401A (en) * | 2020-09-28 | 2022-04-05 | 中国航发商用航空发动机有限责任公司 | Turbine casing of turbine engine and turbine engine |
| CN114278401B (en) * | 2020-09-28 | 2024-04-26 | 中国航发商用航空发动机有限责任公司 | Turbine casing of turbine engine and turbine engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080618 |