CN205504133U - Two -period form electronic expansion valve - Google Patents
Two -period form electronic expansion valve Download PDFInfo
- Publication number
- CN205504133U CN205504133U CN201620036925.6U CN201620036925U CN205504133U CN 205504133 U CN205504133 U CN 205504133U CN 201620036925 U CN201620036925 U CN 201620036925U CN 205504133 U CN205504133 U CN 205504133U
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- screw rod
- nut
- screw
- valve
- seat
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Abstract
The utility model discloses a two -period form electronic expansion valve, including the magnetic rotor subassembly, first screw thread subassembly, first valve head and second screw thread subassembly, first screw thread subassembly includes screw -thread fit's first screw rod and first nut, the first screw rod of magnetic rotor subassembly drive rotates, first screw rod nut axial motion first relatively, second screw thread subassembly includes screw -thread fit's second screw rod and second nut, be equipped with axial guide structure between second nut and the disk seat, the axle center of second screw rod is equipped with the screw rod hole, first screw rod is worn to locate the screw rod downtheholely, the lower extreme of first screw rod is fixed with first valve head, be equipped with circumference drive structure between first screw rod and the second screw rod, screw thread and screw thread that the screw thread of first screw thread subassembly is less than second screw thread subassembly revolve to on the contrary, work to the drive structure to settlement scope later zhou dynasty, one of the five dynasties at first screw rod and the 2nd the axial of the screw rod relative motion, first screw rod drives the second screw rod in step and rotates. The utility model discloses an accurate adjust of valve when the low discharge operating mode.
Description
Technical field
This utility model relates to air-conditioning technical, is specifically related to electric expansion valve.
Background technology
During air conditioner refrigerating dehumidifying at present, it is disposed in the interior in the middle of machine heat exchanger frequently with by electromagnetic valve, will room
Interior machine heat exchanger is divided into heat exchanger and lower heat exchanger, is connected by electromagnetic valve.Existing dehumidifying electromagnetic valve is deposited
In following shortcoming
1, being contained in indoor set due to dehumidifying electromagnetic valve, have higher requirements noise, existing dehumidifying electromagnetic valve shows
So there is bigger action noise.
2, dehumidifying electromagnetic valve is because electric magnet stroke is shorter, bore is less, there is bigger flow resistance after standard-sized sheet,
I.e. there is the bigger pressure loss when not dehumidifying, the overall performance of air-conditioning is had large effect.
3, dehumidifying electromagnetic valve only opens and closes two states, it is impossible to refined condition flow.To dehumidifying operating mode
Under fluid pressure, temperature and flow cannot accomplish regulate control.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of two-period form electric expansion valve, it is achieved that
The valve accurate regulation when low flow rate condition.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that two-period form electric expansion valve,
Including the sleeve pipe being docking together and valve seat, in described sleeve pipe, it is provided with magnet rotor assembly and the first threaded components,
Being provided with the first valve head and the second threaded components in described valve seat, described first threaded components includes threaded engagement
First screw rod and the first nut, described magnet rotor Component driver the first screw rod rotates, described first screw rod phase
To the first nut axially-movable, described second threaded components includes the second screw rod and second nut of threaded engagement,
Being provided with axially directed structure between described second nut and valve seat, the axle center of described second screw rod is provided with screw rod
Hole, the first screw rod is arranged in screw hole, and the lower end of described first screw rod is fixed with the first valve head, and described
Being provided with circumference between one screw rod and the second screw rod and drive structure, the screw thread of described first threaded components is less than second
Screw thread and the thread rotary orientation of threaded components are contrary；Moving axially relative to setting at the first screw rod and the second screw rod
The scope Later Zhou Dynasty, one of the Five Dynasties is to driving structure to work, and the first screw rod synchronizes to drive the second screw rod to rotate.
As preferably, described circumference drives structure to include the second motion guide rod, described first screw rod, second leads
Bar and the first valve head are fixed together, and corresponding described second motion guide rod of the second end face of described second screw rod is provided with
Positioning boss and motion guide rod spacing hole.
As preferably, the first end end face of described first valve head is provided with axial screw hole, location and motion guide rod is fixed
Hole, position, the first screw rod and the second motion guide rod insert in axial screw hole, location and hole, motion guide rod location the most respectively
It is welded and fixed.
As preferably, described first nut includes that the nut of body and body the second end fixes seat, described nut
Fixing seat is fixed with valve seat by nut connecting plate, is combined with spring guide rail and Sealing shield ring on body.
As preferably, described magnet rotor assembly includes magnet rotor and rotor connecting plate, and described rotor connects
Plate and the first screw rod are fixed, circumferentially disposed around the first nut of described magnet rotor, magnet rotor top with
Rotor connecting plate is fixed.
As preferably, between described first nut and the second screw rod, it is provided with rolling assembly.
As preferably, the second port part of described first nut is provided with positioning step, and described rolling assembly includes
The steel ball seat being positioned on positioning step, the first end face of described second screw rod is circumferentially arranged with steel-ball groove, institute
Being provided with steel ball in stating steel-ball groove, described steel ball seat is sealed on steel ball.
As preferably, it is parallel decided at the higher level but not officially announced that described axially directed structure includes that limit base, limit base endoporus are provided with two
Bit plane, the cylindrical of described second nut is provided with two parallel outside fix planes, and described inner position plane is with outer
Location plane cooperation limits the second nut and rotates.
As preferably, the lower end of described second nut is provided with the second valve head, described second valve head and the second nut
Between be provided with spring, described second valve head is provided with the first valve port.
As preferably, the bottom of described valve seat is provided with valve port seat, and described valve port seat is provided with the second valve port.
Electric expansion valve of the present utility model is two-period form structure, respectively by the first threaded components and the second spiral shell
Stricture of vagina assembly goes to control the first valve port and the keying of the second valve port respectively, due to pitch ratio first spiral shell of the second screw thread
The pitch of stricture of vagina is big, by utilizing the different size of screw thread of step motor drive, has both achieved valve in low discharge work
Accurate regulation during condition, ensures again the valve big stroke big aperture state under standard-sized sheet, reduces valve opening process noise,
Reduce fluid resistance during standard-sized sheet.
Accompanying drawing explanation
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings:
Fig. 1 is the cross-sectional view of two-period form electric expansion valve；
Fig. 2 is the internal structure outline drawing of two-period form electric expansion valve；
Fig. 3 is the structural representation one of the second screw rod；
Fig. 4 is the structural representation two of the second screw rod；
Fig. 5 is the assembling schematic diagram of the first screw rod, the second guide post and the first valve head；
Fig. 6 is the second motion guide rod and structural representation under positioning boss released state；
Fig. 7 is the second motion guide rod and structural representation under positioning boss active state；
Fig. 8 is the assembling schematic diagram of limit base and the second nut；
Fig. 9 is the structural representation of limit base.
Detailed description of the invention
As shown in Figures 1 to 9, two-period form electric expansion valve, including the sleeve pipe 14 being docking together and valve seat
1, it is provided with magnet rotor assembly and the first threaded components in described sleeve pipe 14, in valve seat 1, is provided with the first valve
23 and second threaded components, wherein, the first threaded components is minor thread, and the second threaded components is major thread,
Minor thread nominal diameter and pitch are respectively less than major thread, and minor thread and major thread is oppositely oriented.
As depicted in figs. 1 and 2, wherein, described first threaded components includes the first screw rod 21 of threaded engagement
With the first nut 22, relative first nut 22 axially-movable of described first screw rod 21, described second screw thread group
Part includes the second screw rod 31 and the second nut 32 of threaded engagement, between described second nut 32 and valve seat 1
Being provided with axially directed structure, the axle center of described second screw rod 31 is provided with screw hole 310, and the first screw rod 21 is worn
Being located in screw hole 310, the lower end of described first screw rod 21 is fixed with the first valve head 23, described first spiral shell
It is provided with circumference between bar 21 and the second screw rod 31 and drives structure；At the first screw rod 21 and the second screw rod 31 axle
To relative motion to the set point Later Zhou Dynasty, one of the Five Dynasties to driving structure to work, the first screw rod 21 is made to synchronize to drive the second spiral shell
Bar 31 rotates.
Described magnet rotor assembly includes magnet rotor 15 and rotor connecting plate 16, described rotor connecting plate 16
Fixing with the upper end of the first screw rod 21, described magnet rotor 15 is circumferentially disposed around the first nut 22, institute
State magnet rotor 15 top to fix with rotor connecting plate 16.Under magnet rotor 15 acts on, the first screw rod 21
Rotate.
Described first nut 22 includes that the nut of body and body the second end fixes seat, and described nut is fixed seat and led to
Cross nut connecting plate 26 to fix with valve seat 1, body is combined with spring guide rail 24 and Sealing shield ring 25, the
The upper end of one screw rod 21 upper end and the first motion guide rod 17 is fixed, and the lower end of the first motion guide rod 17 is located at outside body
Side, interacts with Sealing shield ring 25.
The lower end of described second nut 32 is provided with the second valve head 12, described second valve head 12 and the second nut 32
Between be provided with spring 13, the first end and second end of the second valve head 12 are connected to spring base 122 and snap ring
123。
Described second valve head 12 is provided with the first valve port 121.The bottom of described valve seat 1 is provided with valve port seat 11,
Described valve port seat 11 is provided with the second valve port 111.
When the second valve head 12 and the second valve port are close to close valve state, the second valve head 12 is at upper end fluid pressure
Effect under, axle moves downward, and is adjacent to and closes the second valve port, and spring 13 is compressed simultaneously.Due to second
The pitch of pitch ratio first screw thread of screw thread is big, and therefore when rising, it is fast that the second screw rod 31 rises, and works as magnetic
Property rotor 15 rotate n circle after, the first valve head 23 props up the first valve port, makes the second relative second spiral shell of valve head 12
Bar 31 axle moves downward, and spring 13 is compressed simultaneously.
As it is shown in figure 5, described circumference drives structure to include the second motion guide rod 231, described first screw rod 21,
Second motion guide rod 231 and the first valve head 23 are fixed together.Concrete, the first of described first valve head 23
End end face is provided with axial screw hole 232, location and hole 233, motion guide rod location, and the first screw rod 21 and second is led
Lever bar 231 is welded and fixed in inserting axial screw hole 232, location and hole 233, motion guide rod location the most respectively.
As shown in Figure 3 and Figure 4, the first end of described second screw rod 31 is flange part 314, flange part 314
Connecting with threaded portion 311, the second end face of described second screw rod 31 is provided with positioning boss 312 and motion guide rod limit
Hole 313, position, motion guide rod spacing hole 313 is parallel with screw hole 310.
As it is shown in fig. 7, when the second motion guide rod 231 inserts the second screw rod 31, the first screw rod 21 and second
Screw rod 31 stirs two synchronous axial system by the second motion guide rod 231；As shown in Figure 6, when the second motion guide rod 231
When departing from the second screw rod 31, the second screw rod 31 stops operating, and the first screw rod 21 rotates with magnet rotor 15.
The end face of positioning boss 312 is provided with the gradient, and the height of positioning boss 312 is less than the pitch of the first screw rod 21.
It addition, be provided with rolling assembly between described first nut 22 and the second screw rod 31.Described first nut
The second port part be provided with positioning step, described rolling assembly includes the steel ball seat 34 being positioned on positioning step,
First end face of described second screw rod, circumferentially arranged with steel-ball groove 315, is provided with steel ball in described steel-ball groove 315,
Described steel ball seat 34 is sealed on steel ball, and under rolling assembly effect, the second screw rod 31 can rotate in place.Its
In the first nut 22 can be incorporated as a part with steel ball seat 34.
As shown in Figure 8 and Figure 9, axially directed structure includes limit base 33, and it is parallel that limit base endoporus is provided with two
Inner position plane 331, the cylindrical of described second nut is provided with two parallel outside fix planes 321, described in
Location plane 331 coordinates with outside fix plane 321, limits the second nut 32 and rotates.Second screw rod 31
First end is columnar head, and columnar head diameter is more than the diameter of second screw rod the second end thread segment, therefore limit base
Columnar head end face is blocked in upper end, limits the axially-movable of the second screw rod 31.
Fully closed to standard-sized sheet process, total corotating n of two-period form electric expansion valve is enclosed, coil block is driven magnetic
After rotor 15 rotates, magnet rotor 15 drives the first threaded components axle to rotate up, and opens the first valve simultaneously
Mouth 121；After m (wherein m < n) encloses, the second motion guide rod 231 groups being arranged on the first screw rod 21
Dynamic second screw rod 31, makes the second screw rod 31 original place rotate (n-m) circle, drives the second nut 32 axial simultaneously
Rise, thus open the second valve port 111.
Fully closed to standard-sized sheet process, total corotating n of two-period form electric expansion valve is enclosed, coil block is driven magnetic
After rotor 15 rotates, magnet rotor 15 drives the first screw arbor assembly axle to be rotated down, and is simultaneously located at first
The second motion guide rod 231 on screw arbor assembly stirs the second screw rod 31, makes the second screw rod 31 original place rotate (n-m)
Circle, drives the second nut 32 axially to decline, closes the second valve port 111, and the second motion guide rod 231 departs from simultaneously
Second screw rod 31, the i.e. second screw rod 31 stops operating, and the first screw rod 21 continues under the drive of magnet rotor 15
Continuous axle is rotated down m circle, closes the first valve port 121.
Claims (10)
1. two-period form electric expansion valve, including the sleeve pipe being docking together and valve seat, it is characterised in that: described sleeve pipe
Inside it is provided with magnet rotor assembly and the first threaded components, in described valve seat, is provided with the first valve head and the second screw thread group
Part, described first threaded components includes the first screw rod and first nut of threaded engagement, described magnet rotor group
Part drives the first screw rod to rotate, and described first screw rod is relative to the first nut axially-movable, described second screw thread group
Part includes the second screw rod and second nut of threaded engagement, is provided with and axially draws between described second nut and valve seat
Guide structure, the axle center of described second screw rod is provided with screw hole, and the first screw rod is arranged in screw hole, described
The lower end of the first screw rod is fixed with the first valve head, is provided with circumference driving between described first screw rod and the second screw rod
Structure, the screw thread of described first threaded components is contrary less than the screw thread of the second threaded components and thread rotary orientation；?
First screw rod and the second screw rod moving axially relative to the set point Later Zhou Dynasty, one of the Five Dynasties to drive structure work, the first spiral shell
Bar synchronizes to drive the second screw rod to rotate.
Two-period form electric expansion valve the most according to claim 1, it is characterised in that: described circumference drives structure
Including the second motion guide rod, described first screw rod, the second motion guide rod and the first valve head are fixed together, and described
Corresponding described second motion guide rod of second end face of two screw rods is provided with positioning boss and motion guide rod spacing hole.
Two-period form electric expansion valve the most according to claim 2, it is characterised in that: the of described first valve head
One end end face is provided with axial screw hole, location and hole, motion guide rod location, and the first screw rod and the second motion guide rod are simultaneously
It is welded and fixed in inserting axial screw hole, location and hole, motion guide rod location respectively.
Two-period form electric expansion valve the most according to claim 1, it is characterised in that: described first nut includes
The nut of body and body the second end fixes seat, and described nut is fixed seat and fixed with valve seat by nut connecting plate,
Body is combined with spring guide rail and Sealing shield ring.
Two-period form electric expansion valve the most according to claim 1, it is characterised in that: described magnet rotor assembly
Including magnet rotor and rotor connecting plate, described rotor connecting plate and the first screw rod are fixed, described magnet rotor
Circumferentially disposed around the first nut, magnet rotor top is fixed with rotor connecting plate.
6. according to the two-period form electric expansion valve described in claim 1 to 5 any one, it is characterised in that: described
It is provided with rolling assembly between first nut and the second screw rod.
Two-period form electric expansion valve the most according to claim 6, it is characterised in that: the of described first nut
Two-port netwerk portion is provided with positioning step, and described rolling assembly includes the steel ball seat being positioned on positioning step, described
First end face of the second screw rod, circumferentially arranged with steel-ball groove, is provided with steel ball, described steel ball seat in described steel-ball groove
It is sealed on steel ball.
Two-period form electric expansion valve the most according to claim 1, it is characterised in that: described axially directed structure
Including limit base, limit base endoporus is provided with two parallel inner position planes, and the cylindrical of described second nut is provided with
Two parallel outside fix planes, described inner position plane coordinate with outside fix plane limit second nut rotate.
Two-period form electric expansion valve the most according to claim 1, it is characterised in that: under described second nut
End is provided with the second valve head, is provided with spring, described second valve head sets between described second valve head and the second nut
There is the first valve port.
Two-period form electric expansion valve the most according to claim 9, it is characterised in that: the bottom of described valve seat
Being provided with valve port seat, described valve port seat is provided with the second valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036925.6U CN205504133U (en) | 2016-01-15 | 2016-01-15 | Two -period form electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036925.6U CN205504133U (en) | 2016-01-15 | 2016-01-15 | Two -period form electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504133U true CN205504133U (en) | 2016-08-24 |
Family
ID=56722928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620036925.6U Active CN205504133U (en) | 2016-01-15 | 2016-01-15 | Two -period form electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101878A1 (en) * | 2015-12-19 | 2017-06-22 | 浙江三花智能控制股份有限公司 | Two-section electronic expansion valve |
| CN110230706A (en) * | 2019-07-10 | 2019-09-13 | 诸暨市亿霸电子阀门有限公司 | A kind of executive module of electric expansion valve |
-
2016
- 2016-01-15 CN CN201620036925.6U patent/CN205504133U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101878A1 (en) * | 2015-12-19 | 2017-06-22 | 浙江三花智能控制股份有限公司 | Two-section electronic expansion valve |
| CN110230706A (en) * | 2019-07-10 | 2019-09-13 | 诸暨市亿霸电子阀门有限公司 | A kind of executive module of electric expansion valve |
| CN110230706B (en) * | 2019-07-10 | 2024-04-16 | 诸暨市亿霸电子阀门有限公司 | Execution assembly of electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |