CN107327579A - A kind of electric expansion valve - Google Patents
A kind of electric expansion valve Download PDFInfo
- Publication number
- CN107327579A CN107327579A CN201710229116.6A CN201710229116A CN107327579A CN 107327579 A CN107327579 A CN 107327579A CN 201710229116 A CN201710229116 A CN 201710229116A CN 107327579 A CN107327579 A CN 107327579A
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- China
- Prior art keywords
- valve
- bearing block
- electric expansion
- spring
- groove
- Prior art date
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Links
- 238000003466 welding Methods 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
-
- 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)
- Lift Valve (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to valve arrangement field, in particular to a kind of electric expansion valve；It includes valve part, the valve part includes valve seat, straight tube and bend pipe, bearing block is provided with the valve seat, match valve rod on the bearing block, the groove of up/down perforation is formed on the valve seat, the bearing block that insertion matches in the groove, valve rod is provided with the bearing block, the straight tube matched in the bottom welding of the groove, provided with the lateral aperture communicated with the groove on the valve seat outer wall, the bend pipe that the lateral aperture welding matches, a disrance sleeve is welded on the outer wall of the valve seat, magnet rotor is provided with outside the valve rod upper end；The present invention can not only realize electric expansion valve No leakage under full off state, while reducing production cost.
Description
Technical field
The present invention relates to valve arrangement field, in particular to a kind of electric expansion valve.
Background technology
At present, electric expansion valve both domestic and external is various in style, and architectural feature is each different, but their throttle structure is all
It is similar, mainly cone valve structure.Because the valve opening point location of this cone valve structure sets (fully closed without flow) so that electronics
Needle inside expansion valve is in contact with following valve opening, and valve rod starts to produce an axial compressive force to needle.Work as electronic expansion
Valve is under full off state, and produced axial compressive force reaches maximum each other for valve rod and needle, because needle is fully closed
When under state, remain static, the spring of stem internal is compressed spring by the downward pressure of valve rod；Work as spring
Decrement to certain degree when, the pressure that needle is subject to reaches maximum；At the same time, the spring of stem internal is produced to valve rod
A raw elastic force (the reverse axial compressive force that i.e. needle is produced to valve rod), now, between valve rod external screw thread and valve body internal thread
Frictional force becomes big.When air inlet pipe is passed through gases at high pressure, and electric expansion valve, when descending in off position, needle seals valve opening,
Now the high pressure of valve opening upper end is more than the low pressure of lower end, forms a positive differential pressure so that gases at high pressure generate one to needle
Individual axial compressive force.Therefore, the generation of axial compressive force, causes inside electric expansion valve between valve rod external screw thread and valve body internal thread
Frictional force becomes big, more likely because the driving force that stepper motor is produced is less than reaction torque, causes electric expansion valve clamping stagnation.
Needle and valve opening below in this cone valve structure, have certain gap.Due to depositing for these gaps
Quantity of gas leakage is being caused to increase.Therefore, the gap of this cone valve structure is reduced, it is necessary to improve between needle and valve opening
Matching degree.Matching degree is improved, it is necessary to greatly improve the processing precise degree of equipment, that is, needs to put into high cost.
Therefore, the valve opening location device and sealing device of this cone valve structure are broken through, while so that reducing part processing
Two kinds of devices of electric expansion valve are improved by cost, have invented a kind of structure of more rational electric expansion valve.
The content of the invention
The invention aims to provide a kind of to can solve the problem that the weak point and technology that refer in above-mentioned background technology
The electric expansion valve of problem.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of electric expansion valve, including valve part, the valve part include valve seat, straight tube and bend pipe, in the valve
Seat is provided with bearing block, the bearing block valve rod that matches, and is formed on the valve seat in the groove of up/down perforation, the groove
The bearing block matched is inserted, valve rod is provided with the bearing block, the straight tube matched in the bottom welding of the groove, described
Valve seat outer wall is provided with the lateral aperture communicated with the groove, the bend pipe that the lateral aperture welding matches, in the outer of the valve seat
A disrance sleeve is welded on wall, magnet rotor is provided with outside the valve rod upper end.
Further setting is done to the present invention, the valve seat upper surface is provided with a locating notch, is used in the locating notch
Quiet spring fixed plate is positioned, an endoporus is provided with the quiet spring fixed plate, in its described endoporus size and the external diameter size of bearing block
It is identical, and valve seat upper surface is installed in, it is coaxial with bearing block.
Do further setting to the present invention, the valve rod includes the body of rod, the axial hole post that the interior formation of the body of rod runs through,
Two annular grooves are formed on the outer wall of the axial hole post bottom, the top of the axial hole post is provided with a spring eye.
Further setting is done to the present invention, the bearing block includes pedestal, the through hole run through, institute are formed in the pedestal
State through hole with the valve rod to match, in the middle and upper part of the through hole provided with a horizontal hole post, in through-hole wall top shape
Into an internal thread segment, an axle collar groove is formed in the middle part of the pedestal outer wall.
The present invention is done and forms circular groove on further setting, the pedestal lower port inwall, in the pedestal lower port
Outer wall is provided with rectangle valve port, can be 2, either 4 or 6 in the quantity of the rectangle valve port, and valve port two
Two is symmetrical, seal washer is provided with the circular groove, the material used in the seal washer is PTFE or PEEK.
Further setting is done to the present invention, the middle-end outer wall of the pedestal is provided with fixing groove, in the fixing groove and institute
Valve seat is stated mutually to rivet.
Further setting is done to the present invention, the middle part of the valve seat is provided with one and the rectangle valve on the bearing block
The equal annular trough of open height.
Further setting is done to the present invention, coaxial mounted spacing quiet spring is provided with the outer wall of the bearing block, in institute
State spacing quiet spring to be fixed on the fixing hole of the quiet spring fixed plate, embedding limited location in the helicla flute of the spacing quiet spring moves
Spring.
Further setting is done to the present invention, there is upper position-arresting portion, lower position-arresting portion and spirally-guided portion in the spacing quiet spring,
Upper position-arresting portion is located at the upper end in spirally-guided portion, and lower position-arresting portion is located at the lower end in spirally-guided portion, described with lower position-arresting portion phase
The positioning handle of connection is embedded on the fixing hole of the quiet spring fixed plate.
Further setting is done to the present invention, the quiet spring fixed plate has 36 teeth and 36 tooth sizes are identical, and distribution is equal
It is even, there is fixing hole in the quiet spring fixed plate, the end face of the fixing hole perpendicular to quiet spring fixed plate plane and be connected.
Do further setting to the present invention, be provided with magnet rotor inside the bearing block, the magnet rotor by modeling magnetic material and
The embedding axle composition of rotor, in being internally formed for the embedding axle of the rotor and the valve rod external diameter size identical axis hole, in the axis hole
Outer wall on formed and the external thread section that matches of internal thread segment on the bearing block.
Further setting is done to the present invention, the top of the embedding axle of rotor is provided with an axle sleeve, the inside shape of the axle sleeve
Hole is covered with valve rod external diameter identical into one, the axle sleeve and the valve rod are coaxial, and the upper surface of the axle sleeve and the valve
The upper surface of bar maintains an equal level.
Further setting is done to the present invention, the spring eye of the valve rod is embedded with valve rod stage clip.
Further setting is done to the present invention, the top of the embedding axle of rotor is provided with a spring press-cover, the spring press-cover
Middle and lower part form the first slotted eye one bigger than the axle sleeve external diameter, the middle part of the spring press-cover forms one and the valve
3rd slotted eye is formed at bar stage clip external diameter size the second slotted eye of identical, the top of the spring press-cover.
The axle collar groove on further setting, the bearing block is done to the present invention, for being embedded in axle collar, described
Axle collar, it is therefore intended that prevent the quiet spring fixed plate from moving up and down.
Further setting is done to the present invention, when the afterbody of the spacing dynamic spring is located at the lower position-arresting portion of spacing quiet spring and true
When determining the closing point and electric expansion valve No leakage of electric expansion valve, the limit for dialling handle and the magnet rotor of the spacing dynamic spring
Position muscle is in contact, while by specified frock, by the quiet spring fixed plate corresponding with above the valve seat locating notch
One tooth is withheld.
Further setting is done to the present invention, the setting of the closing point of the electric expansion valve, is the bottom by the valve rod
End is mutually touched with the seal washer, then magnet rotor is reversed into 90 °~135 °.
Further setting is done to the present invention, the electronic expansion valve sealing means are to incite somebody to action described by the valve rod stage clip
Valve rod is pressed on the seal washer.
Compared with the prior art, the present invention has following beneficial effect：
Electronic expansion valve sealing means,, will by valve rod stage clip specifically when stem bottom is mutually touched with seal washer
Valve rod is pressed on seal washer so that electric expansion valve when closed, reduces leakage rate.
The valve opening location device of electric expansion valve, is specifically when stem bottom is mutually touched with seal washer, then by magnetic
Rotor reverses 90 °~135 ° so that valve opening pulse (note in the range of 32 ± 20：1 pulse=4.5 °).
From the foregoing, it will be observed that the present invention can solve the problem that the shortcomings of the prior art, electric expansion valve can not only be realized
The No leakage under full off state, while reducing cost.
Brief description of the drawings
The present invention is elaborated with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of electric expansion valve upper sealing device of the present invention and valve opening location device.
Fig. 2 is the structural representation of valve part in the present invention.
Fig. 3 is the profile in A-A directions in Fig. 2.
Fig. 4 is the structural representation of bottom bracket of the present invention and the profile in B-B directions.
Fig. 5 is the structural representation of quiet spring fixed plate in the present invention.
Fig. 6 is the structural representation of spacing quiet spring in the present invention.
Fig. 7 is the structural representation of spacing dynamic spring in the present invention.
Fig. 8 is the structural representation of bottom bracket of the present invention and the profile in C-C directions.
Fig. 9 is the structural representation and the profile in D-D directions of magnet rotor in the present invention.
Figure 10 is the structural representation of bottom bracket axle of the present invention.
Figure 11 is the structural representation and the profile in E-E directions of spring press-cover in the present invention.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of electric expansion valve, including valve part 1, the valve part
Including valve seat 101, straight tube 102 and bend pipe 103, match valve rod is provided with bearing block 2, the bearing block 2 on the valve seat 101
9, the bearing block 2 that insertion matches in the groove 1011 of up/down perforation, the groove 1011 is formed on the valve seat 101, in institute
State and valve rod 9 is provided with bearing block 2, the straight tube 102 matched in the bottom welding of the groove 1011, in the outer wall of valve seat 101
Provided with the lateral aperture communicated with the groove 1011, the bend pipe 103 that the lateral aperture welding matches, in the valve seat 101
A disrance sleeve 13 is welded on outer wall, magnet rotor 8 is provided with outside the upper end of valve rod 9.
The heretofore described upper surface of valve seat 101 is provided with a locating notch 1013, and it is fixed to be used in the locating notch 1013
The quiet spring fixed plate 4 in position, an endoporus 401 is provided with the quiet spring fixed plate 4, in the outer of its described size of endoporus 401 and bearing block 2
Footpath size is identical, and is installed in the upper surface of valve seat 101, coaxial with the bearing block 2.
Heretofore described bearing block 2 includes pedestal 201, and the through hole 202 run through is formed in the pedestal 201, described
Through hole 202 matches with the valve rod 9, in the middle and upper part of the through hole 202 provided with a horizontal hole post 203, in the through hole 202
Upper inside wall one internal thread segment 204 of formation, forms an axle collar groove 205, described in the middle part of the outer wall of pedestal 201
Axle is with, provided with a fixing groove 206, the fixing groove 206 is mutually riveted with the valve seat 101 below collar 7.
Circular groove 208 is formed on the heretofore described lower port inwall of pedestal 201, in the outer wall of the lower port of pedestal 201
Rectangle valve port 207 is provided with, can be 2, either 4 or 6 in the quantity of the rectangle valve port 207, and valve port
It is symmetrical two-by-two, seal washer 3 is provided with the circular groove 208, the material used in the seal washer 3 is PTFE or PEEK.
The heretofore described quiet spring fixed plate 4 has 36 teeth 402 and 36 sizes of tooth 402 are identical, is evenly distributed,
There is fixing hole 403, the plane of the end face 404 of the fixing hole 403 perpendicular to quiet spring fixed plate 4 in the quiet spring fixed plate 4
405 and be connected.
Coaxial mounted spacing quiet spring 5 is provided with the present invention on the outer wall of the bearing block 2, in the spacing quiet spring 5
On the fixing hole 403 for being fixed on the quiet spring fixed plate, embed limited location in the helicla flute of the spacing quiet spring 5 and move spring 6.
Heretofore described spacing quiet spring 5 has upper position-arresting portion 501, lower position-arresting portion 502 and spirally-guided portion 503, upper to stop
Position portion 501 is located at the upper end in spirally-guided portion 503, and lower position-arresting portion 502 is located at the lower end in spirally-guided portion 503, described with
The positioning handle 504 that position-arresting part 502 is connected is embedded on the fixing hole 403 of the quiet spring fixed plate 4.
Heretofore described valve rod 9 includes the body of rod 901, the axial hole post 902 that the interior formation of the body of rod 901 runs through, institute
2 annular grooves 903 of formation on the outer wall of the axial bottom of hole post 902 are stated, the top of the axial hole post 902 is provided with a spring eye 904.
The middle part of heretofore described valve seat 101 is provided with one and the height of rectangle valve port 207 on the bearing block 2
Equal annular trough 1012.
The heretofore described inside of bearing block 2 is provided with magnet rotor 8, and the magnet rotor 8 is by modeling magnetic material 801 and the embedding axle of rotor
802 compositions, in being internally formed for the embedding axle 802 of the rotor and the external diameter size identical axis hole 8021 of valve rod 9, in the axle
The external thread section 8022 matched with the internal thread segment 204 on the bearing block 2 is formed on the outer wall in hole 8021.
The top of the heretofore described embedding axle 802 of rotor is provided with axle sleeve 11, and the axle sleeve 11 is internally formed one
Hole 1101 is covered with the external diameter identical of valve rod 9, the axle sleeve 11 and the valve rod 9 are coaxial, and upper surface and the institute of the axle sleeve 11
The upper surface for stating valve rod 9 maintains an equal level, while both are linked together by way of welding.
The spring eye 904 of heretofore described valve rod 9 is embedded with valve rod stage clip 10.
Under the top of the heretofore described embedding axle 802 of rotor is provided with a spring press-cover 12, the spring press-cover 12
Portion forms the first slotted eye 1,201 one bigger than the external diameter of axle sleeve 11, the middle part of the spring press-cover 12 formed one with it is described
3rd slotted eye 1203 is formed at the second slotted eye of external diameter size identical 1202 of valve rod stage clip 10, the top of the spring press-cover 12.
Axle collar groove 205 on heretofore described bearing block 2, for being embedded in axle collar 7, in the axle collar
7, it is therefore intended that prevent the quiet spring fixed plate 4 from moving up and down.
A kind of electric expansion valve in the present invention, when the afterbody of the spacing dynamic spring 6 is located at the lower position-arresting portion of spacing quiet spring 5
502 and when having determined that the closing point and electric expansion valve No leakage of electric expansion valve or somewhat revealing, it is described spacing dynamic
The handle 601 of dialling of spring 6 is in contact with the limit rib 8011 of the magnet rotor 8, while by specified frock, will be with the valve seat
One tooth 402 of the 101 corresponding quiet spring fixed plate 4 in the top of locating notch 1013 is withheld.
A kind of sealing device of electric expansion valve in the present invention：The valve rod 9 is pressed in by institute by the valve rod stage clip 10
State on seal washer 3.
The valve opening location device of a kind of electric expansion valve in the present invention：Bottom and the sealing by the valve rod 9
Packing ring 3 is mutually touched, then magnet rotor 8 is reversed into 90 °~135 °, now, and the position is confirmed to be closing point.
Above-described embodiment is simply to illustrate that the technical concepts and features of the present invention, the purpose is to be to allow in the art
Those of ordinary skill can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent change or modification according to made by the essence of present invention, should all covers within the scope of the present invention.
Claims (10)
1. a kind of electric expansion valve, including valve part, the valve part include valve seat, straight tube and bend pipe, in the valve seat
The valve rod that matches is provided with bearing block, the bearing block, the groove of up/down perforation, the groove interpolation are formed on the valve seat
Enter the bearing block of matching, valve rod is provided with the bearing block, the straight tube matched in the bottom welding of the groove, in the valve
Seat outer wall is provided with the lateral aperture communicated with the groove, the bend pipe that the lateral aperture welding matches, in the outer wall of the valve seat
One disrance sleeve of upper welding, is provided with magnet rotor outside the valve rod upper end.
2. a kind of electric expansion valve according to claim 1, it is characterised in that：The valve seat upper surface is provided with a locating slot
Mouthful, it is used to position quiet spring fixed plate in the locating notch, an endoporus is provided with the quiet spring fixed plate, it is big in its described endoporus
It is small identical with the external diameter size of bearing block, and valve seat upper surface is installed in, the middle part of the valve seat coaxial with the bearing block
Provided with one and the highly equal annular trough of the rectangle valve port on the bearing block.
3. a kind of electric expansion valve according to claim 1, it is characterised in that：The valve rod includes the body of rod, the body of rod
Interior formed forms 2 annular grooves on the axial hole post run through, the outer wall of the axial hole post bottom, the top of the axial hole post is set
There is a spring eye.
4. a kind of electric expansion valve according to claim 3, it is characterised in that：The spring eye of the valve rod is embedded with valve rod pressure
Spring.
5. a kind of electric expansion valve according to claim 1, the bearing block includes pedestal, formed and run through in the pedestal
Through hole, the through hole and the valve rod match, in the middle and upper part of the through hole provided with a horizontal hole post, in the through hole
One internal thread segment is formed at wall top, and an axle collar groove is formed in the middle part of the pedestal outer wall, in the outer of the bearing block
Wall is provided with coaxial mounted spacing quiet spring, is fixed in the spacing quiet spring on the fixing hole of the quiet spring fixed plate, in institute
The helicla flute for stating spacing quiet spring embeds the dynamic spring of limited location.
6. a kind of electric expansion valve according to claim 5, it is characterised in that：Circle is formed on the pedestal lower port inwall
Groove, on the outer wall of the pedestal lower port be provided with rectangle valve port, the quantity of the rectangle valve port be 2,4 or
6, and valve port is symmetrical two-by-two, be provided with seal washer in the circular groove, the material used in the seal washer be PTFE or
PEEK, the middle-end outer wall of the pedestal is provided with fixing groove, is mutually riveted with the valve seat in the fixing groove.
7. a kind of electric expansion valve according to claim 5 or 6, it is characterised in that：Magnet rotor is provided with inside the bearing block,
The magnet rotor is made up of modeling magnetic material and the embedding axle of rotor, in being internally formed and the valve rod external diameter size for the embedding axle of the rotor
Identical axis hole, forms the external thread section matched with the internal thread segment on the bearing block on the outer wall of the axis hole；
The spacing quiet spring has upper position-arresting portion, lower position-arresting portion and spirally-guided portion, and upper position-arresting portion is located at the upper of spirally-guided portion
End, lower position-arresting portion is located at the lower end in spirally-guided portion, and the quiet spring is embedded in the positioning handle being connected with lower position-arresting portion
On the fixing hole of fixed plate.
8. a kind of electric expansion valve according to claim 7, it is characterised in that：The quiet spring fixed plate has 36 teeth and 36
Individual tooth size is identical, is evenly distributed, and has fixing hole in the quiet spring fixed plate, and the end face of the fixing hole is solid perpendicular to quiet spring
The plane of fixed board and be connected；
The top of the embedding axle of rotor is provided with axle sleeve, and the axle sleeve is internally formed one and valve rod external diameter identical set
Hole, the axle sleeve and the valve rod are coaxial, and the upper surface of the axle sleeve and the upper surface of the valve rod maintain an equal level；
The top of the embedding axle of rotor forms one than the axle sleeve provided with a spring press-cover, the middle and lower part of the spring press-cover
The first big slotted eye of external diameter, the middle part of the spring press-cover forms one and valve rod stage clip external diameter size second groove of identical
3rd slotted eye is formed at hole, the top of the spring press-cover.
9. a kind of electric expansion valve according to claim 7 or 8, it is characterised in that：Axle on bearing block collar groove,
For being embedded in axle collar, in the axle collar, it is therefore intended that prevent the quiet spring fixed plate from moving up and down.
10. a kind of electric expansion valve according to claim 9, it is characterised in that：When the afterbody of the spacing dynamic spring is located at limit
The lower position-arresting portion of the quiet spring in position and when having determined that the closing point and electric expansion valve No leakage of electric expansion valve, the spacing dynamic spring
Handle of dialling be in contact with the limit rib of the magnet rotor, will be with valve seat locating notch top while by specified frock
One tooth of the corresponding quiet spring fixed plate is withheld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229116.6A CN107327579B (en) | 2017-04-10 | 2017-04-10 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229116.6A CN107327579B (en) | 2017-04-10 | 2017-04-10 | Electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327579A true CN107327579A (en) | 2017-11-07 |
| CN107327579B CN107327579B (en) | 2024-03-29 |
Family
ID=60192508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229116.6A Active CN107327579B (en) | 2017-04-10 | 2017-04-10 | Electronic expansion valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110107729A (en) * | 2019-06-18 | 2019-08-09 | 诸暨市亿霸电子阀门有限公司 | A kind of self-sustaining, magnetic-coupled Direct Action Type four-way reversing valve |
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| CN102252119A (en) * | 2010-05-21 | 2011-11-23 | 浙江三花股份有限公司 | Electrically operated valve and heat exchange device comprising same |
| CN102252470A (en) * | 2011-06-02 | 2011-11-23 | 上海俊乐制冷自控元件有限公司 | Straight-way type electronic expansion valve |
| CN103133707A (en) * | 2011-11-22 | 2013-06-05 | 浙江三花股份有限公司 | Motorized valve and manufacture method of motorized valve |
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| CN110107729A (en) * | 2019-06-18 | 2019-08-09 | 诸暨市亿霸电子阀门有限公司 | A kind of self-sustaining, magnetic-coupled Direct Action Type four-way reversing valve |
| CN110107729B (en) * | 2019-06-18 | 2024-02-02 | 诸暨市亿霸电子阀门有限公司 | Self-holding magnetic coupling direct-acting four-way reversing valve |
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| CN107327579B (en) | 2024-03-29 |
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