CN209054093U - The electric expansion valve that refrigeration equipment is opened with no pressure difference - Google Patents
The electric expansion valve that refrigeration equipment is opened with no pressure difference Download PDFInfo
- Publication number
- CN209054093U CN209054093U CN201821856821.5U CN201821856821U CN209054093U CN 209054093 U CN209054093 U CN 209054093U CN 201821856821 U CN201821856821 U CN 201821856821U CN 209054093 U CN209054093 U CN 209054093U
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- Prior art keywords
- needle
- valve
- pressure difference
- opened
- hole
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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
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses the electric expansion valves that a kind of refrigeration equipment is opened with no pressure difference, including valve bonnet interconnected and valve body, first medium runner and second medium runner are installed on valve body, the inner space that valve bonnet and valve body surround is equipped with stop assembly and magnet rotor, stop assembly includes the silk braid nut of integrated injection molding, magnet rotor center connection wire rod one end, the screw rod other end connect needle, are equipped with vertical through holes and the cross through hole through needle side wall in the needle；The silk braid nut axial centre is through-hole structure, and extension diameter section is additionally provided in through-hole, and cooperation is equipped with needle in extension diameter section, and extension diameter section is laterally provided with cross-drilled hole.The utility model by first medium runner be connected to needle in vertical through holes, be sequentially communicated cross through hole, silk braid nut through hole, cross-drilled hole, magnet rotor realize needle opening process in up and down without pressure difference performance.
Description
Technical field
The utility model relates to a kind of expansion valve, the electronic expansion opened in particular to a kind of refrigeration equipment with no pressure difference
Valve.
Background technique
At present for universal component electric expansion valve in refrigeration equipment, electric expansion valve utilizes the electricity for being conditioned parameter generation
Signal controls the voltage or electric current being applied on expansion valve, and then achievees the purpose that adjust liquid supply rate.Stepless variable capacitance amount refrigeration system
The cold liquid supply rate adjustable range of controlling is wide, it is desirable that adjusts reaction fastly, traditional throttling set (such as heating power expansion valve) is difficult to well win
Appoint, and electric expansion valve can be met the requirements well.Electric expansion valve is that pressure difference is smaller due to the sensibility to switch DP
It is better, how to reduce the object that the pressure difference during electronic expansion valve core is opened and closed is those skilled in the art's research.
Summary of the invention
The utility model provides the refrigeration that a kind of structure is simple, flow control is accurate, valve inner structure height is integrated
The electric expansion valve that equipment is opened with no pressure difference.
A kind of electric expansion valve that refrigeration equipment is opened with no pressure difference, including valve bonnet interconnected and valve body, on valve body
First medium runner and second medium runner are installed, the inner space that valve bonnet and valve body surround is equipped with stop assembly and magnetic turn
Son, stop assembly include the silk braid nut of integrated injection molding, and installation steel disc is connected on silk braid nut, install steel disc and valve body
It is fixedly connected；Silk braid nut periphery on the upside of steel disc is installed and is equipped with guide thread, guide thread periphery is combined with locating snap ring, stop
Ring cooperation contact is set to the guiding rib on the inside of magnet rotor, magnet rotor center connection wire rod one end, screw rod other end connection valve
Needle, the needle is interior to be equipped with vertical through holes and the cross through hole through needle side wall；The silk braid nut axial centre is
Through-hole structure, through-hole is interior to be equipped with one section of screw thread, is threadedly coupled screw rod, and extension diameter section is additionally provided in through-hole, and cooperation is equipped in extension diameter section
Needle, extension diameter section are laterally provided with cross-drilled hole；The vertical through holes are connected to first medium runner.This kind of electromagnetic valve body is using one
The silk braid nut structure of injection molding is completed to control screw rod or more by magnet rotor rotation for locating snap ring on one component
Operation, screw rod run the control for driving needle up and down motion to reach for valve port opening up and down, realize the stream for medium runner
Amount control.It due to locating snap ring controlled magnetic rotor, is rotated along guide thread, reaches the technical performance of flow control precision.Make
It is the vertical through holes that first medium runner is connected in needle for the core technology that no pressure difference is opened, is sequentially communicated cross through hole, silk
Cover nut through hole, cross-drilled hole, magnet rotor realize needle opening process in up and down without pressure difference performance.The first medium runner
It is located on same axis with valve bonnet, valve body.
The silk braid nut guide thread bottom is equipped with lower backstop muscle, and baffle ring, control valve are housed at the top of guide thread
The stroke up and down of needle.
Vertical through holes and screw rod connecting pin are equipped with the needle lid of limit in the needle, are equipped with needle bullet in vertical through holes
Spring, needle spring one end connect needle, other end connecting spring guiding axis, and spring guiding axis contacts screw rod end.This kind of technology
The rotary force that structure rotates screw rod is dissolved by spring guiding axis and needle spring, is not transferred to needle, that is, valve
Needle can't rotate in off position, can only move up and down with screw rod, greatly reduce the abrasion of needle, improve and use the longevity
Life.
The needle top peripheral is conical structure, the valve port on conical surface linear sealing valve body, valve port connection the
One medium runner.Conical structure at the top of needle not only can be further improved leakproofness by pressure, but also it had been opened and closed
Since compression area is minimum in journey, linear contact is almost opening between first medium runner and second medium runner without pressure difference
It opens.
Connection sheet, the protruding circular ring connection wire rod at connection sheet center are installed on the magnet rotor.The connection
On piece is equipped with venthole, realizes pressure balance between magnet rotor and valve bonnet, and then reach the pressure between first medium runner
Dynamic balance, auxiliary reach no pressure difference and open performance.
Silk braid nut periphery and needle periphery on the downside of the installation steel disc jointly are sleeved on valve needle cover, valve needle cover bottom
It is equipped with retaining ring between portion and needle, one side fitting needle is equipped on the upside of retaining ring, is equipped with the sealing ring of concave ring on one side, concave ring is embedded in
O-ring, O-ring airtight connection valve needle cover.Sealing ring airtight connection valve body is equipped on the outside of the valve needle cover.The utility model is logical
The sealing structure for crossing diversified forms reaches good obturation effect.
The utility model is connected to the vertical through holes in needle by first medium runner, is sequentially communicated cross through hole, silk braid
Nut through hole, cross-drilled hole, magnet rotor realize needle opening process in up and down without pressure difference performance.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view for the electric expansion valve that the utility model refrigeration equipment is opened with no pressure difference.
Specific embodiment
A kind of electric expansion valve that refrigeration equipment is opened with no pressure difference as shown in Figure 1, including valve bonnet interconnected 1 and valve
Body 11 is equipped with first medium runner 12 and second medium runner 8, the inner space that valve bonnet 1 and valve body 11 surround on valve body 11
Equipped with stop assembly and magnet rotor 3, stop assembly includes the silk braid nut 6 of integrated injection molding, is connected on silk braid nut 6
Steel disc 24 is installed, installation steel disc 24 is fixedly connected with valve body 11；6 periphery of silk braid nut for installing 24 upside of steel disc is equipped with guiding spiral shell
Line, guide thread periphery are combined with locating snap ring 5, and the cooperation contact of locating snap ring 5 is set to the guiding rib on the inside of magnet rotor, magnet rotor
3 center connection wire rod, 2 one end, 2 other end of screw rod connect needle 10, and vertical through holes 23 are equipped with 2 connecting pin of screw rod in needle 10
The needle lid 19 of limit, vertical through holes 23 are interior to be equipped with needle spring 9, and 9 one end of needle spring connects needle 10, and the other end connects bullet
Spring guiding axis 7, spring guiding axis 7 contact screw rod end.
In order to realize that no pressure difference is opened, vertical through holes 23 and the cross through hole through needle side wall are equipped in needle 10
18.6 axial centre of silk braid nut is through-hole structure, is equipped with one section of screw thread in through-hole, is threadedly coupled screw rod 2, is additionally provided in through-hole
Extension diameter section, the interior cooperation of extension diameter section are equipped with needle 10, and extension diameter section is laterally provided with cross-drilled hole 20.Since vertical through holes 23 are connected to first medium
Runner 12 is then sequentially communicated cross through hole 18, silk braid nut through hole 25, cross-drilled hole 20, pressure balance between magnet rotor 3, real
Performance is opened without pressure difference up and down in existing 10 opening process of needle.As further technical pattern first medium runner 12 and valve
Cover 1, valve body 11 are located on same axis.
It is equipped with lower backstop muscle 5 as the preferred 6 guide thread bottom of silk braid nut of structure, baffle ring is housed at the top of guide thread
4, control the stroke up and down of needle.
In order to further increase sealing performance, reduce the starting pressure between first medium runner 12 and second medium runner 8
Difference, 10 top peripheral of needle are conical structure, and the valve port on conical surface linear sealing valve body, valve port is connected to first medium runner
12。
In order to further increase the pressure balance between each component of entire electric expansion valve, the company of being equipped on magnet rotor 3
Contact pin 22, the protruding circular ring connection wire rod 2 at 22 center of connection sheet, connection sheet 22 are equipped with venthole 21 and balance valve bonnet 1 and magnetism
Pressure balance ability between rotor 3 in space.
Sealing structure as one preferred, 6 periphery of silk braid nut and 10 periphery of needle of 24 downside of installation steel disc are total
With valve needle cover 17 is socketed with, it is equipped with retaining ring 13 between 17 bottom of valve needle cover and needle 10, one side fitting valve is equipped on the upside of retaining ring 13
Needle 10 is equipped with the sealing ring 15 of concave ring on one side, and concave ring is embedded in O-ring 14, and O-ring close 14 closes connection valve needle cover 17.Valve needle cover
17 outsides are equipped with 16 airtight connection valve body 11 of sealing ring.
Claims (9)
1. the electric expansion valve that a kind of refrigeration equipment is opened with no pressure difference, including valve bonnet interconnected and valve body, pacify on valve body
Equipped with first medium runner and second medium runner, the inner space that valve bonnet and valve body surround is equipped with stop assembly and magnetic turn
Son, stop assembly include the silk braid nut of integrated injection molding, and installation steel disc is connected on silk braid nut, install steel disc and valve body
It is fixedly connected；Silk braid nut periphery on the upside of steel disc is installed and is equipped with guide thread, guide thread periphery is combined with locating snap ring, stop
Ring cooperation contact is set to the guiding rib on the inside of magnet rotor, magnet rotor center connection wire rod one end, screw rod other end connection valve
Needle, it is characterised in that: vertical through holes and the cross through hole through needle side wall are equipped in the needle；The silk braid nut
Axial centre is through-hole structure, is equipped with one section of screw thread in through-hole, is threadedly coupled screw rod, is additionally provided with extension diameter section, extension diameter section in through-hole
Interior cooperation is equipped with needle, and extension diameter section is laterally provided with cross-drilled hole；The vertical through holes are connected to first medium runner.
2. the electric expansion valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: described
One medium runner and valve bonnet, valve body are located on same axis.
3. the electric expansion valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: the silk
It covers nut guide thread bottom and is equipped with lower backstop muscle, baffle ring is housed at the top of guide thread, controls the stroke up and down of needle.
4. the electric expansion valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: the valve
Vertical through holes and screw rod connecting pin are equipped with the needle lid of limit in needle, are equipped with needle spring, needle spring one end in vertical through holes
Needle, other end connecting spring guiding axis are connected, spring guiding axis contacts screw rod end.
5. the electric expansion valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: the valve
Needle top peripheral is conical structure, and the valve port on conical surface linear sealing valve body, valve port is connected to first medium runner.
6. the electric expansion valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: the magnetic
Connection sheet, the protruding circular ring connection wire rod at connection sheet center are installed on property rotor.
7. the electric expansion valve that refrigeration equipment according to claim 6 is opened with no pressure difference, it is characterised in that: the company
Contact pin is equipped with venthole.
8. the electric expansion valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: the peace
Silk braid nut periphery and needle periphery on the downside of steel loading piece jointly are sleeved on valve needle cover, are equipped between valve needle cover bottom and needle
Retaining ring, retaining ring upside are equipped with one side fitting needle, are equipped with the sealing ring of concave ring on one side, concave ring is embedded in O-ring, and O-ring is closed
Connect valve needle cover.
9. the electric expansion valve that refrigeration equipment according to claim 8 is opened with no pressure difference, it is characterised in that: the valve
Sealing ring airtight connection valve body is equipped on the outside of needle guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856821.5U CN209054093U (en) | 2018-11-13 | 2018-11-13 | The electric expansion valve that refrigeration equipment is opened with no pressure difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856821.5U CN209054093U (en) | 2018-11-13 | 2018-11-13 | The electric expansion valve that refrigeration equipment is opened with no pressure difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209054093U true CN209054093U (en) | 2019-07-02 |
Family
ID=67053164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821856821.5U Active CN209054093U (en) | 2018-11-13 | 2018-11-13 | The electric expansion valve that refrigeration equipment is opened with no pressure difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209054093U (en) |
-
2018
- 2018-11-13 CN CN201821856821.5U patent/CN209054093U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |