CN208634406U - Electric expansion valve - Google Patents
Electric expansion valve Download PDFInfo
- Publication number
- CN208634406U CN208634406U CN201821352128.4U CN201821352128U CN208634406U CN 208634406 U CN208634406 U CN 208634406U CN 201821352128 U CN201821352128 U CN 201821352128U CN 208634406 U CN208634406 U CN 208634406U
- Authority
- CN
- China
- Prior art keywords
- needle
- guide sleeve
- valve
- suspension
- component
- 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.)
- Active
Links
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a kind of electric expansion valves, including valve seat, valve core case, screw rod component and needle component with valve chamber；Valve core case is at least partially disposed in valve chamber and is fixedly connected with valve seat；Screw rod component can be moved axially with respect to valve core case to drive needle component close to or far from valve port；Needle component includes needle body part and guide part, and the two is fixedly connected or is integrally formed；It further include director element comprising guide sleeve, the inner wall of valve core case and the outer wall clearance sliding fit of guide sleeve, the inner wall of guide sleeve and the outer wall clearance sliding fit of guide part；Screw rod component support guide set, guide sleeve can support needle component in suspension in suspension；It further include elastic element, one end of elastic element is abutted with screw rod component, and the other end is abutted with needle component.The invention also discloses another electric expansion valves.The electric expansion valve of the utility model can reduce the abrasion of the guide part of needle, reduces the stuck probability of valve, improves the service life of valve.
Description
Technical field
The utility model relates to fluid control component technical fields, more particularly to a kind of electric expansion valve.
Background technique
A kind of currently used electric expansion valve drives external screw thread axis by the rotor rotation of stepper motor, external screw thread axis
External thread part is threadedly coupled with the inner thread piece for being fixed on valve seat, using the threaded connection so that external screw thread axis rotor driving
Under move in the axial direction, so that needle be driven to open or close valve port, wherein in order to enable needle to be precisely directed to valve
Mouthful, needle itself is equipped with guide part, inserts in the valve core case for being formed with valve port in the guide part.The guide part and valve core case of needle begin
There is interaction force eventually, cause the guide part of needle frayed always, the service life of valve is directly affected when serious.
It is that those skilled in the art need to solve at present in view of this, how to reduce the abrasion that needle is generated in valve operation
Certainly the technical issues of.
Utility model content
The purpose of the utility model is to provide a kind of electric expansion valve, the structure design of the electric expansion valve can reduce valve
The abrasion of the guide part of needle improves the service life of valve to reduce the stuck probability of valve.
In order to solve the above technical problems, the utility model provides a kind of electric expansion valve, including valve seat, valve core case, screw rod
Component and needle component；The valve core case is at least partially disposed in the valve chamber of the electric expansion valve and consolidates with the valve seat
Fixed connection；The screw rod component can valve core case axial movement relatively to drive the needle component close to or far from valve
Mouthful；The needle component includes needle body part and guide part, and the needle body part is fixedly connected or one with the guide part
It is body formed；It further include director element, the director element includes guide sleeve, and the inner wall of the valve core case is outer with the guide sleeve
Wall clearance sliding fit, the outer wall clearance sliding fit of the inner wall of the guide sleeve and the guide part；The screw rod component energy
Enough to support the guide sleeve in suspension, the guide sleeve can support the needle component in suspension；
Further include elastic element, one end of the elastic element is abutted with the screw rod component, the elastic element it is another
One end is abutted with the needle component.
The utility model also provides another electric expansion valve, which includes valve seat, valve core case, screw rod component
With needle component；The valve core case, which is at least partially disposed in the valve chamber of the electric expansion valve and fixes with the valve seat, to be connected
It connects；The screw rod component can valve core case axial movement relatively to drive the needle component close to or far from valve port；Institute
Stating needle component includes needle body part and guide part, the needle body part be fixedly connected with the guide part or one at
Type；It further include director element, the director element includes the first guide sleeve and the second guide sleeve；The inner wall of the valve core case and institute
State the outer wall clearance sliding fit of the first guide sleeve, the outer wall gap of the inner wall of first guide sleeve and second guide sleeve
It is slidably matched, the inner wall of second guide sleeve and the outer wall clearance sliding fit of the guide part；
The screw rod component can support the director element in suspension, and the director element can support described in suspension
Needle component.
Electric expansion valve provided by the utility model has additional guiding member between valve core case and the guide part of needle component
Part avoids the guide part of needle component from persistently being ground in the whole service stage and causes to be seriously worn, and can reduce stuck general
Rate is effectively improved the service life of electric expansion valve.
Detailed description of the invention
The electric expansion valve that Fig. 1 provides first embodiment by the utility model is in the structural schematic diagram of valve opening state；
Fig. 2 is the partial enlarged view at the position A in Fig. 1；
The electric expansion valve that Fig. 3 provides first embodiment by the utility model is in the structural schematic diagram of closed valve state；
Fig. 4 is the partial enlarged view at the position B in Fig. 3；
The electric expansion valve that Fig. 5 provides second embodiment by the utility model is in the structural schematic diagram of valve opening state；
Fig. 6 is the partial enlarged view at the position C in Fig. 5；
The electric expansion valve that Fig. 7 provides second embodiment by the utility model is in the structural schematic diagram of closed valve state；
Fig. 8 is the partial enlarged view at the position D in Fig. 7.
Description of symbols:
Valve seat 11, valve core case 12, valve port 13, inner thread piece 14, screw rod component 15, the first support portion 151, rotor 16, bullet
Property element 18；
Needle component 17, guide part 171, the second suspension part 172, needle body part 173；
Outer guide sleeve 19, the first suspension part 191, the second support portion 192；
Needle element 17 ' is oriented to branch 171 ', needle main part 173 ', radial flange 174 '；
First guide sleeve 19a, first hangs the guide sleeve 19b of branch 191a, first annular protrusion 192a, second, the second ring
Shape protrusion 191b.
Specific embodiment
It should be noted that noun of locality "up" and "down" used herein etc., is to be with shown position in attached drawing
What benchmark defined, " axial direction " that is directed to refers to the axis direction of electric expansion valve, i.e., paper where attached drawing from top to bottom or
Vertical direction from bottom to top, " radial direction " being related to refer to the direction perpendicular with the axis direction of aforementioned electronic expansion valve；It can be with
Understand, the use of the noun of locality is intended merely to the clear of description technique scheme and conveniently, should not constitute the limit to protection scope
System.
It should also be noted that, herein " supporting in suspension ", refer between two components one support another one but
It is between the two and to be not fixed, under some states of electric expansion valve, the two can regard Integral synchronous movement as, in electronic expansion
Under other states of valve, relative displacement can occur between the two.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for mode.
Please refer to figs. 1 to 4, and the electric expansion valve that Fig. 1 provides first embodiment by the utility model is in valve opening shape
The structural schematic diagram of state；Fig. 2 is the partial enlarged view at the position A in Fig. 1；Fig. 3 provides first embodiment by the utility model
Electric expansion valve is in the structural schematic diagram of closed valve state；Fig. 4 is the partial enlarged view at the position B in Fig. 3.
In the embodiment, electric expansion valve includes valve seat 11, valve core case 12, inner thread piece 14, screw rod component 15, rotor 16
With needle component 17.
Wherein, the first adapter tube of connection valve chamber is connected on valve seat 11；The lower end of valve core case 12 offers valve port 13, spool
Seat 12 is set in valve chamber, and is fixedly connected with valve seat 11, and the lower end of valve core case 12 is stretched out from valve chamber and is connected with the second adapter tube.
That is, valve core case 12 is partially provided in valve chamber in the embodiment, it will be understood that when actual setting, valve core case 12
It is also feasible for being fully located in valve chamber, in addition, valve port 13 can also be opened in the bottom of valve seat 11.When actual setting, spool
Seat 12 can also can be integrated structure with valve seat 11.
Needle component 17 can be set in valve core case 12, and can be with respect to the axial movement of valve core case 12, with close port 13
Or open valve port 13.
The upper end of valve seat 11 forms valve chamber after being connected with shell, and rotor 16 is located at valve chamber, inner thread piece 14 and screw rod component
15 are located in valve chamber；Specifically, inner thread piece 14 and valve seat 11 are affixed, and screw rod component 15 and the upper end of rotor 16 are affixed, and insert
Enter in inner thread piece 14 and be threadedly engaged with inner thread piece 14, the lower end of screw rod component 15 and needle component 17 cooperate.
When rotor 16 rotates, driving screw rod component 15 is rotated synchronously, in the threaded connection effect of itself and inner thread piece 14
Under, screw rod component 15 can be mobile relative to the axis direction of valve core case 12, thus drive needle component 17 be axially away from or
Close to valve port 13 to open or close valve port 13.
In the embodiment, needle component 17 includes needle body part 173 and guide part 171, and the two is integrally formed；It can manage
Solution, when actual setting, needle body part 173 and guide part 171 can also be set as relatively independent component, then be fixedly connected on one
It rises.
The electric expansion valve further includes director element, and in the embodiment, director element only includes a guide sleeve, for it is rear
Continuous embodiment difference, referred to as outer guide sleeve 19.It is understood that being only including a guide sleeve with director element herein
Example is illustrated, and is not the limitation to this programme guide sleeve number.
With reference to Fig. 2 and Fig. 4, the guide part 171 of valve core case 12, outer guide sleeve 19 and needle component 17 is set gradually, specifically
Ground, the inner wall of valve core case 12 and the outer wall clearance sliding fit of outer guide sleeve 19, inner wall and the guide part 171 of outer guide sleeve 19
Outer wall clearance sliding fit, that is to say, that the inner wall of valve core case 12 has the guide section being oriented to outer guide sleeve 19, outer guide sleeve
19 inner wall has the guide section being oriented to guide part 171.
Wherein, screw rod component 15 can support outer guide sleeve 19 in suspension, and outer guide sleeve 19 can support needle in suspension
The guide part 171 of component 17, in this way, screw rod component 15 is able to drive outer guide sleeve 19 when moving axially and needle component 17 is axial
It is mobile.
In specific scheme, the guide part 171 of needle component 17 has blind hole, which further includes elastic element
18, specifically, elastic element 18 is plugged in blind hole, and one end of elastic element 18 is abutted with screw rod component 15, elastic element 18
The other end is abutted with needle component 17.
It should be pointed out that elastic element 18 has pre compressed magnitude, and elastic element 18 hereafter is not after normal assembly
Compression stage and by compression stage is defined on the basis of elastic element 18 has pre compressed magnitude.
Fig. 1 and Fig. 2 are please referred to, in uncompressed 18 stage of elastic element, that is, needle component 17 is not in contact with 13 rank of valve port
Section, screw rod component 15 do rotation movement downwards (or upwards), by the work of 18 pre-compression force of elastic element under the driving of rotor 16
With screw rod component 15 drives outer guide sleeve 19 and needle component 17 to do rotation movement downwards (or upwards) together, at this point, outer guiding
The outer wall of set 19 and the inner wall of valve core case 12, which exist, to be mutually displaced and rubs, that is, outer guide sleeve 19 and valve core case 12 it
Between the guide section that is formed wear；At this time under the action of elastic element 18, do not have between needle component 17 and outer guide sleeve 19
There is relative displacement, that is to say, that the guide section formed between the guide part 171 and outer guide sleeve 19 of needle component 17 is produced without friction
It is raw.
Fig. 3 and Fig. 4 are please referred to, in 18 stage of compression elastic element, that is, 13 stage of 17 close port of needle component,
After 17 close port 13 of needle component, the axial position of needle component 17 is no longer changed, and is influenced by the driving force of rotor 16,
Screw rod component 15 continues to move and compression elastic element 18, at this point, outer guide sleeve 19 is no longer by the elastic force etc. of elastic element 18
External force, abrasion are reduced, and needle component 17 is directly made rotating motion by the effect of elastic element 18 with screw rod component 15, so that
Relative displacement may occur between needle component 17 and outer guide sleeve 19 and generate friction, that is to say, that at this stage, mainly
The guide section formed between the guide part 171 and outer guide sleeve 19 of needle component 17 is worn.
Therefore in the embodiment, outer guiding is added between the guide part 171 and valve core case 12 of needle component 17
After set 19, the guiding between needle component 17 and valve core case 12 is divided into the guiding between valve core case 12 and outer guide sleeve 19 and leads outside
Guiding between set 19 and guide part 171, in this way, undertaking electric expansion valve respectively in the different operation phase by two groups of guiding
The abrasion loss of generation avoids the guide part 171 of needle component 17 from persistently being ground in the whole service stage and cause to be seriously worn,
It can reduce stuck probability, effectively improve the service life of electric expansion valve.
In specific scheme, outer guide sleeve 19 includes the first suspension part 191 and the second support portion 192, and screw rod component 15 wraps
The first support portion 151 is included, needle component 17 further includes the second suspension part 172；Wherein, the first support portion 151 supports in suspension
One suspension part 191, so that outer guide sleeve 19 be made to be supported in suspension by screw rod component 15；Second support portion 192 supports in suspension
Two suspension parts 172, so that needle component 17 be made to be supported in suspension by outer guide sleeve 19.
Specifically, it is formed with reference to Fig. 2 and Fig. 4, the guide part 171 of needle component 17 and the junction of needle body part 173
Towards the stage portion of valve port 13, which forms the second suspension part 172；The lower end of outer guide sleeve 19 is bent radially inward
Cyclic structure is formed, which forms the second support portion 192, that is to say, that is placed in the guide part 171 of needle component 17
Outer guide sleeve 19, stage portion offset with the second support portion 192, and needle body part 173 passes through aforementioned cyclic structure.
In illustrated scheme, outer guide sleeve 19 and the second support portion 192 are integrally formed, it will be understood that, can also when actual setting
The second support portion 192 is separately provided, then it is fixedly connected with outer guide sleeve 19.
The lower end of screw rod component 15 has the radially protruding portion extended radially outward, which forms first
The upper end of support part 151, outer guide sleeve 19 is connected with annular component, which forms the first suspension part 191, such as institute in figure
Show, the inner cavity of outer guide sleeve 19 is protruded into the lower end of screw rod component 15, under the upper end and annular component in radially protruding portion
End surface offsets.
In illustrated scheme, the first suspension part 191 to be separately provided, then it is affixed with outer guide sleeve 19 convenient for assembling, have
Body, annular groove can be opened up in the inner wall of outer guide sleeve 19 to form the installation space of the first suspension part 191.
In specific scheme, spring is can be selected in elastic element 18, is additionally provided in the inner cavity of the guide part 171 of needle component 17
Mounting base, the lower end of spring are coated at mounting base, and one end of spring is abutted with the first support portion 151, the other end and peace of spring
Dress seat abuts after directly abutting with the inner bottom wall of the blind hole of guide part 171, to prevent spring bias.
Fig. 5 to Fig. 8 is please referred to, the electric expansion valve that Fig. 5 provides second embodiment by the utility model is in valve opening shape
The structural schematic diagram of state；Fig. 6 is the partial enlarged view at the position C in Fig. 5；Fig. 7 provides second embodiment by the utility model
Electric expansion valve is in the structural schematic diagram of closed valve state；Fig. 8 is the partial enlarged view at the position D in Fig. 7.
In the embodiment, electric expansion valve includes valve seat 11, valve core case 12, inner thread piece 14, screw rod component 15, rotor 16
With needle element 17 '；Mutual cooperation relationship between these components is consistent with aforementioned first embodiment, and and will not be described here in detail.
Needle element 17 ' also includes guiding branch 171 ' and needle main part 173 ', specific constructive form and aforementioned first
Embodiment is different, will be described in detail in expansion below.
The electric expansion valve also includes director element, different from aforementioned first embodiment, in the embodiment, director element packet
Two guide sleeves are included, for ease of description, hereinafter referred to as the first guide sleeve 19a and the second guide sleeve 19b.
With reference to Fig. 6 and Fig. 8, the guiding of valve core case 12, the first guide sleeve 19a, the second guide sleeve 19b and needle element 17 '
Branch 171 ' sets gradually, specifically, the outer wall clearance sliding fit of the inner wall of valve core case 12 and the first guide sleeve 19a, first
The outer wall clearance sliding fit of the inner wall of guide sleeve 19a and the second guide sleeve 19b, the inner wall and guiding point of the second guide sleeve 19b
The outer wall clearance sliding fit in portion 171 '；That is, the inner wall of valve core case 12 has the guiding being oriented to the first guide sleeve 19a
Section, the inner wall of the first guide sleeve 19a have the guide section being oriented to the second guide sleeve 19b, the inner wall tool of the second guide sleeve 19b
There is the guide section being oriented to guiding branch 171 '.
Wherein, screw rod component 15 can support the first guide sleeve 19a, the first guide sleeve 19a that can hang twelve Earthly Branches in suspension
The second guide sleeve 19b is supportted, the second guide sleeve 19b can support the guiding branch 171 ' of needle element 17 ' in suspension, in this way, silk
Rod unit 15 is able to drive the first guide sleeve 19a, the second guide sleeve 19b when moving axially and needle element 17 ' moves axially.
In specific scheme, needle element 17 ' includes needle and valve needle cover, and needle is fixedly connected with valve needle cover, wherein valve
Needle includes needle main part 173 ', and valve needle cover includes guiding branch 171 '.
In illustrated scheme, needle and valve needle cover are two relatively independent components, and the two is fixedly connected, it will be understood that real
When border is arranged, under the premise of not influencing assembly, the two can also be integrally formed.
In illustrated scheme, valve needle cover forms guiding branch 171 '.
The electric expansion valve further includes elastic element 18, and one end of elastic element 18 is abutted with the second guide sleeve 19b, elasticity
The other end of element 18 is abutted with needle element 17 '.In specific scheme, the lower part of needle main part 173 ' have radially to
The radial flange 174 ' of outer extension, the elastic element 18 are coated at needle main part 173 ', both ends respectively with the second guide sleeve
19b and radial flange 174 ' abut；In the state of 17 ' close port 13 of needle element, screw rod component 15 can also compress
Two guide sleeve 19b.
It should be pointed out that elastic element 18 has pre compressed magnitude, and elastic element 18 hereafter is not after normal assembly
Compression stage and by compression stage is defined on the basis of elastic element 18 has pre compressed magnitude.
Fig. 5 and Fig. 6 are please referred to, in uncompressed 18 stage of elastic element, that is, needle element 17 ' is not in contact with valve port 13
Stage, screw rod component 15 are rotation movement downwards (or upwards), the first guide sleeve 19a, the second guiding under the driving of rotor 16
Cover the movement downwardly together (or upwards) therewith of 19b and needle element 17 ', the outer wall of the first guide sleeve 19a is interior with valve seat core 12
There is mutually displacement and rub in wall, that is to say, that the guide section formed between the first guide sleeve 19a and valve seat core 12 occurs
Abrasion, at this point, being generated without relative displacement between the second guide sleeve 19b and the first guide sleeve 19a, guiding branch 171 ', also
It is to say, the guide section and the second guide sleeve 19b formed between the second guide sleeve 19b and the first guide sleeve 19a and needle member
The guide section formed between the guiding branch 171 ' of part 17 ' is generated without friction.
Fig. 7 and Fig. 8 are please referred to, in 18 stage of compression elastic element, that is, 13 stage of 17 ' close port of needle element,
After 17 ' close port 13 of needle element, the axial position of needle element 17 ' is no longer changed, in the driving masterpiece of rotor 16
Under, screw rod component 15 continues to move, and the second guide sleeve 19b is compressed and compression elastic element 18, at this point, the first guide sleeve 19a
Not by resilient force, the second guide sleeve 19b is made rotating motion by resilient force with screw rod component 15, so that the second guide sleeve
19b may occur relative displacement between the first guide sleeve 19a and/or the guiding branch 171 ' of needle element 17 ' and generate and rub
It wipes, that is to say, that at this stage, the guide section formed between mainly the second guide sleeve 19b and the first guide sleeve 19a, and/
Or, the guide section formed between the second guide sleeve 19b and guiding branch 171 ' is worn.
Therefore in the embodiment, had additional between the guiding branch 171 ' and valve core case 12 of needle element 17 '
Two guide sleeves, the guide frame between needle element 17 ' and valve core case 12 are divided between valve core case 12 and the first guide sleeve 19a
Outer guide section, middle guide section and the second guide sleeve 19b between the first guide sleeve 19a and the second guide sleeve 19b with lead
To the interior guide section between branch 171 ', exist in this way, sharing electric expansion valve by outer guide section, middle guide section and interior guide section
The abrasion loss that different operation phase generate, avoid the guiding branch 171 ' of needle element 17 ' in the whole service stage persistently by
It grinds and causes to be seriously worn, can reduce stuck probability, effectively improve the service life of electric expansion valve.
In specific scheme, the first guide sleeve 19a includes the first suspension branch 191a and third support portion, the second guide sleeve
19b includes the second support portion and third suspension part, and screw rod component 15 includes the first support portion 151, and needle element 17 ' further includes
Second suspension part；Wherein, the first support portion 151 can support the first suspension branch 191a in suspension, to make the first guide sleeve
19a can be supported in suspension by screw rod component 15；Second support portion can support the second suspension part in suspension, to make needle
Element 17 ' can be supported in suspension by the second guide sleeve 19b；Third support portion can support third suspension part in suspension, thus
The second guide sleeve 19b is set to be supported in suspension by the first guide sleeve 19a.
Specifically, with reference to Fig. 6 and Fig. 8, the lower end of screw rod component 15 has the radially protruding portion extended radially outward, should
Radially protruding portion forms the first support portion 151, and the first upper end guide sleeve 19a is connected with annular component, which forms the
One suspension branch 191a, as shown in the figure, the inner cavity of the first guide sleeve 19a, radially protruding are protruded into the lower end of screw rod component 15
The upper end in portion and the lower end surface of annular component offset.
In the embodiment, as shown in fig. 6, screw rod component 15 is hung in the state that needle element 17 ' is not turned off valve port 13
Ground supports the first guide sleeve 19a, and there are prepsetting gaps between screw rod component 15 and the second guide sleeve 19b, in this way, in needle
In the state of 17 ' close port 13 of element, after screw rod component 15 moves the prepsetting gap towards 13 direction of valve port, with the second guiding
Set 19b contact is to compress the second guide sleeve 19b, and then compression elastic element 18.
Specifically, the lower end surface of valve needle cover forms aforementioned second suspension part, the lower end of the second guide sleeve 19b radially to
Inner bending forms the second annular protrusion 191b, and the upper end face of second annular protrusion 191b forms aforementioned second support portion, should
The lower end face of second annular protrusion 191b forms aforementioned third suspension part, and the lower end of the first guide sleeve 19a is curved radially inward
Folding forms first annular protrusion 192a, which forms third support portion.
As above after setting, the first guide sleeve 19a, the second annular protrusion 191b is placed in the second guide sleeve 19b can be with the
One annular protrusion 192a is abutted, and the top of needle element 17 ' is located in the second guide sleeve 19b, so that it is oriented to branch 171 '
Lower end can be abutted with the second annular protrusion 191b of the second guide sleeve 19b；The second annular is stretched out in the lower part of needle element 17 '
Protrusion 191b and first annular protrusion 192a.
Specifically, the upper end of elastic element 18 is abutted with the second annular protrusion 191b of the second guide sleeve 19b, Ke Yili
Solution, in order to enable the upper end of elastic element 18 to abut with the second annular protrusion 191b, the internal diameter of first annular protrusion 192a is answered
When the outer diameter less than the second annular protrusion 191b, and it is greater than the internal diameter of the second annular protrusion 191b.
Electric expansion valve provided by the utility model is described in detail above.Specific case used herein
The principles of the present invention and embodiment are expounded, the above embodiments are only used to help understand, and this is practical
Novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this reality
Under the premise of with new principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen into
In the protection scope of the utility model claims.
Claims (11)
1. electric expansion valve, including valve seat (11), valve core case (12), screw rod component (15) and needle component (17)；The spool
Seat (12) is at least partially disposed in the valve chamber of the electric expansion valve and is fixedly connected with the valve seat (11)；The screw rod
Component (15) can the valve core case (12) axial movement relatively to drive the needle component (17) close to or far from valve port
(13)；The needle component (17) includes needle body part (173) and guide part (171), the needle body part (173) and institute
Guide part (171) is stated to be fixedly connected or be integrally formed；It is characterized in that, further including director element, the director element includes leading
To set, the outer wall clearance sliding fit of the inner wall of the valve core case (12) and the guide sleeve, the inner wall of the guide sleeve and institute
State the outer wall clearance sliding fit of guide part (171)；The screw rod component (15) can support the guide sleeve in suspension, described
Guide sleeve can support the needle component (17) in suspension；
Further include elastic element, one end of the elastic element is abutted with the screw rod component (15), the elastic element it is another
One end is abutted with the needle component (17).
2. electric expansion valve according to claim 1, which is characterized in that the guide sleeve includes the first suspension part (191)
With the second support portion (192)；The screw rod component (15) includes the first support portion (151), and the needle component (17) further includes
Second suspension part (172)；First support portion (151) can support first suspension part (191) in suspension, and described second
Support portion (192) can support second suspension part (172) in suspension.
3. electric expansion valve according to claim 2, which is characterized in that the guide part (171) and the needle ontology
The junction in portion (173) forms the stage portion towards the valve port (13), and the stage portion is second suspension part (172)；
The lower end of the guide sleeve is bent to form second support portion (192) radially inward.
4. electric expansion valve according to claim 2, which is characterized in that the lower end of the screw rod component (15) has along diameter
To protrusion is outwardly extending diametrically, the radially protruding portion forms first support portion (151)；The upper end of the guide sleeve
It is connected with annular component, the annular component forms first suspension part (191).
5. according to the described in any item electric expansion valves of claim 2-4, which is characterized in that the guide part (171) has blind
Hole, the elastic element (18) are plugged in the blind hole；One end of the elastic element (18) and first support portion (151)
It abuts, the other end of the elastic element (18) is abutted with the inner bottom wall of the blind hole.
6. electric expansion valve, including valve seat (11), valve core case (12), screw rod component (15) and needle element (17 ')；The spool
Seat (12) is at least partially disposed in the valve chamber of the electric expansion valve and is fixedly connected with the valve seat (11)；The screw rod
Component (15) can the valve core case (12) axial movement relatively to drive the needle element (17 ') close to or far from valve port
(13)；The needle element (17 ') includes needle main part (173 ') and guiding branch (171 '), the needle main part
(173 ') are fixedly connected or are integrally formed with the guiding branch (171 ')；It is characterized in that, further include director element, it is described to lead
It include the first guide sleeve (19a) and the second guide sleeve (19b) to element；The inner wall of the valve core case (12) and first guiding
The outer wall clearance sliding fit of (19a) is covered, the inner wall of first guide sleeve (19a) is outer with second guide sleeve (19b)
Wall clearance sliding fit, the inner wall of second guide sleeve (19b) and the outer wall gap sliding of guiding branch (171 ') are matched
It closes；
The screw rod component (15) can support the director element in suspension, and the director element can support described in suspension
Needle element (17 ').
7. electric expansion valve according to claim 6, which is characterized in that it further include elastic element (18), the elasticity member
One end of part (18) is abutted with second guide sleeve (19b), the other end and the needle element of the elastic element (18)
(17 ') it abuts.
8. electric expansion valve according to claim 7, which is characterized in that first guide sleeve (19a) includes first outstanding
Branch (191a) and third support portion are hung, second guide sleeve (19b) includes the second support portion and third suspension part, the silk
Rod unit (15) includes the first support portion (151), and the needle element (17 ') further includes the second suspension part；First support
Portion (151) can support first suspension branch (191a) in suspension, and second support portion can support described in suspension
Second suspension part, the third support portion can support the third suspension part in suspension.
9. electric expansion valve according to claim 8, which is characterized in that the upper end of first guide sleeve (19a) is affixed
There is annular component, the annular component forms first suspension branch (191a), and the lower end of the screw rod component (15) has
The radially protruding portion extended radially outward, the radially protruding portion form first support portion (151).
10. electric expansion valve according to claim 9, which is characterized in that the needle element (17 ') includes needle and valve
Needle guard, the needle are fixedly connected with the valve needle cover, and the needle includes the needle main part (173 '), the valve needle cover
Including the guiding branch (171 ')；The lower end face of the valve needle cover forms second suspension part；Second guide sleeve
The lower end of (19b) is bent to form the second annular protrusion (191b) radially inward, the upper end of second annular protrusion (191b)
Face forms second support portion, and the lower end face of second annular protrusion (191b) forms the third suspension part；Institute
The lower end for stating the first guide sleeve (19a) is bent to form first annular protrusion (192a) radially inward, the first annular protrusion
(192a) forms the third support portion.
11. electric expansion valve according to claim 10, which is characterized in that the lower part of the needle main part (173 ') has
There is the radial flange (174 ') extended radially outward；The elastic element (18) is coated at the needle main part (173 '),
And the both ends of the elastic element (18) are abutted with second annular protrusion (191b) and the radial flange (174 ') respectively；
The needle element (17 ') is closed in the state of the valve port (13), and the screw rod component (15) can compress described second and lead
To set (19b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821352128.4U CN208634406U (en) | 2018-08-21 | 2018-08-21 | Electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821352128.4U CN208634406U (en) | 2018-08-21 | 2018-08-21 | Electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208634406U true CN208634406U (en) | 2019-03-22 |
Family
ID=65742528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821352128.4U Active CN208634406U (en) | 2018-08-21 | 2018-08-21 | Electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208634406U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259656A1 (en) * | 2019-06-28 | 2020-12-30 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2021057299A1 (en) * | 2019-09-24 | 2021-04-01 | 浙江盾安人工环境股份有限公司 | Valve core assembly and electronic expansion valve having same |
| CN112621164A (en) * | 2019-09-24 | 2021-04-09 | 浙江盾安禾田金属有限公司 | Press fitting method, valve core assembly and electronic expansion valve |
| KR20210137564A (en) * | 2019-06-28 | 2021-11-17 | 쯔지앙 산화 인텔리전트 컨트롤스 씨오., 엘티디. | Electronic Expansion Valve |
| WO2022127265A1 (en) * | 2020-12-14 | 2022-06-23 | 广东威灵电机制造有限公司 | Valve needle assembly, electronic expansion valve and refrigeration apparatus |
| US11982477B2 (en) | 2019-06-28 | 2024-05-14 | Zhejiang Sanhua Intelligent Controls Co., Ltd | Electronic expansion valve |
-
2018
- 2018-08-21 CN CN201821352128.4U patent/CN208634406U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259656A1 (en) * | 2019-06-28 | 2020-12-30 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| KR20210137564A (en) * | 2019-06-28 | 2021-11-17 | 쯔지앙 산화 인텔리전트 컨트롤스 씨오., 엘티디. | Electronic Expansion Valve |
| CN113748287A (en) * | 2019-06-28 | 2021-12-03 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| KR102578174B1 (en) | 2019-06-28 | 2023-09-13 | 쯔지앙 산화 인텔리전트 컨트롤스 씨오., 엘티디. | Electronic expansion valve |
| CN113748287B (en) * | 2019-06-28 | 2023-12-15 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| US11906055B2 (en) | 2019-06-28 | 2024-02-20 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
| US11982477B2 (en) | 2019-06-28 | 2024-05-14 | Zhejiang Sanhua Intelligent Controls Co., Ltd | Electronic expansion valve |
| WO2021057299A1 (en) * | 2019-09-24 | 2021-04-01 | 浙江盾安人工环境股份有限公司 | Valve core assembly and electronic expansion valve having same |
| CN112621164A (en) * | 2019-09-24 | 2021-04-09 | 浙江盾安禾田金属有限公司 | Press fitting method, valve core assembly and electronic expansion valve |
| WO2022127265A1 (en) * | 2020-12-14 | 2022-06-23 | 广东威灵电机制造有限公司 | Valve needle assembly, electronic expansion valve and refrigeration apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208634406U (en) | Electric expansion valve | |
| EP2322882B1 (en) | Electronic expansion valve | |
| CN208252794U (en) | A kind of motor-driven valve | |
| CN108317259A (en) | A kind of electric expansion valve | |
| JP2010508457A (en) | Oil pump for refrigeration compressor | |
| CN208519284U (en) | A kind of motor-driven valve | |
| CN1721724A (en) | Damper and washing machine having the damper | |
| CN105937632B (en) | Motor-driven valve | |
| CN110345267A (en) | A kind of motor-driven valve | |
| CN2911342Y (en) | Integrally packed mechanical sealing means | |
| CN112413149B (en) | Electronic expansion valve and mounting method thereof | |
| CN113748287B (en) | Electronic expansion valve | |
| CN205907510U (en) | Rotary drum washing machine | |
| CN111765251B (en) | Electronic expansion valve | |
| CN208578879U (en) | A kind of bearing pre-tightened mechanism of electro spindle | |
| CN203257632U (en) | Crank axial magnetic suspension thrust bearing supporting structure of refrigeration compressor | |
| CN102282975B (en) | Braking structure of lawn mower | |
| CN110359235A (en) | Damp door lock and washing machine | |
| CN208890570U (en) | A kind of novel oepration at full load energy-saving electric machine | |
| CN209140437U (en) | Rotor machining fixture | |
| US20220154984A1 (en) | Electronic expansion valve | |
| CN208685149U (en) | A kind of circular weaving machine oscillating rod device | |
| CN205479083U (en) | Low noise air spring | |
| CN207952311U (en) | A kind of new automobile bushing flanging device | |
| CN104011386B (en) | Hermetic compressor including oil suction component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220817 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |