CN205939839U - Thermal expansion valve - Google Patents
Thermal expansion valve Download PDFInfo
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- CN205939839U CN205939839U CN201620648494.9U CN201620648494U CN205939839U CN 205939839 U CN205939839 U CN 205939839U CN 201620648494 U CN201620648494 U CN 201620648494U CN 205939839 U CN205939839 U CN 205939839U
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- valve
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- throttle
- heating power
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Abstract
The utility model discloses a thermal expansion valve belongs to throttle control field, has solved the great problem of noise among the thermal expansion valve throttle process, and the technical scheme who solves this problem mainly includes valve body, valve rod and the case of being connected with the one end of valve rod, be equipped with in the valve body orifice and with the throttle chamber of orifice intercommunication, the opening size of valve rod area movable valve element control orifice, the intracavity of throttling are equipped with the valve core case of being connected with the case, the valve core case is equipped with along valve rod direction sliding connection in the guide part in throttle chamber, be equipped with the parietal spigot surface of laminating in the throttle chamber on the guide part. The utility model discloses well guide part reduces radially rocking of valve core case, avoids the valve core case to rock the vibration and noise who arouses.
Description
Technical field
This utility model is related to the control field that throttles, more particularly, to a kind of heating power expansion valve.
Background technology
Heating power expansion valve is the commonly used throttle part of air conditioning for automobiles, and it can be to the liquid refrigerant carrying out condenser
Throttled and blood pressure lowering, and the flow that the cold-producing medium of vaporizer sent into by condenser adjusted according to the degree of superheat of evaporator outlet,
The Throttle Principle of whole heating power expansion valve is that high pressure refrigerant enters low pressure chamber after the throttling of throttling chamber, but high in throttling process
Pressure coolant the effect due to impulsive force would generally produce larger noise when spring base.
For solving the above problems, prior art provides a kind of heating power expansion valve, in the valve pocket on the downside of throttle orifice in valve body
It is provided with the valve element that upper and lower is supported respectively by drive link and valve core frame, drive link is from the air box head parts located at valve body upper end
Obtain power to support valve element to valve opening position, described valve core frame obtains power by valve element from the compression spring being supported on
Suppress to valve closing direction, being provided with valve core movement on valve core frame prevents part, it is described that valve core movement prevents part to be welded on
On valve core frame.Such scheme prevents part to be firmly secured on valve core frame due to valve element, makes valve core frame stable motion, reduces
Vibration and noise that valve core movement causes with displacement.But in such scheme, valve element prevents the installation of part from needing after positioning
Completed by welding, its installation is loaded down with trivial details to be unfavorable for improving the qualification rate of production and the reduction of cost.
Content of the invention
This utility model purpose to be reached is exactly to provide a kind of heating power expansion valve, reduces the noise of heating power expansion valve.
In order to achieve the above object, this utility model adopts the following technical scheme that：A kind of heating power expansion valve, including valve body,
Valve rod and the valve element being connected with one end of valve rod, are provided with throttle orifice and the throttling chamber connecting with throttle orifice, valve rod in valve body
Control the openings of sizes of throttle orifice with movable valve plug, throttling intracavity is provided with the valve core case being connected with valve element, and described valve core case is provided with edge
Stem movement direction is slidably connected to the guide part in throttling chamber, and described guide part is provided with the guiding of the cavity wall fitting in throttling chamber
Face.
Further, described valve core case includes the fixed part being connected with guide part, and the chamber that throttles is divided into first by fixed part
Throttling chamber and the second throttling chamber, described valve body is provided with import connecting hole, first throttle chamber connection import connecting hole and throttle orifice.
Further, described fixed part is communicated with first throttle chamber and the first through hole in the second throttling chamber.
Further, the junction of described fixed part and guide part is communicated with the of first throttle chamber and the second throttling chamber
Two through holes.
Further, described guide part is the side wall extending along stem movement direction, and guide part is additionally provided with spigot surface even
The circulating face connecing, described circulating face forms the circulation groove connecting first throttle chamber and the second throttling chamber with the cavity wall in throttling chamber.
Further, the cavity wall that described import connecting hole is fitted with spigot surface positioned at first throttle chamber, and import connecting hole
Hole wall with setting throttle orifice throttling chamber cavity wall concordant.
Further, described valve body is additionally provided with the import connecting with import connecting hole and the outlet connecting with throttle orifice,
From import flow into cold-producing medium stream through import connector, throttling chamber, throttle orifice and from outlet flow out.
Further, described second throttling intracavity is provided with the regulation spring driving valve core case resilience, and fixed part is tied for tabular
Structure, guide part stretches into the second throttling chamber, and fixed part is formed for adjusting the mounting groove that spring is installed with guide part, adjusts spring
One end is against the bottom surface of mounting groove, the other end is provided with regulating bolt, and regulating bolt stretches out valve body.
Further, described spigot surface extends along stem movement direction, and spigot surface is along two sides in stem movement direction
It is provided with fillet surface.
Further, described valve body is additionally provided with gas returning port and unit head, and the valve body between gas returning port and outlet is provided with
Stem through-hole, the other end of described valve rod passes through stem through-hole and gas returning port to stretch out valve body, and stretches out valve rod and the power of valve body
Head connects, and sets sealing device in stem through-hole.
After technique scheme, this utility model has the advantage that：
1st, first, guide part and throttling chamber are slidably connected, and spigot surface fits in the cavity wall in throttling chamber, limit valve core case relatively
The movement locus of throttling chamber cavity wall, the radial direction decreasing in valve element and valve core case motor process is rocked, and not only ensures valve element and section
The quality of fit of discharge orifice and the control of flow, and the vibration avoiding valve core case to rock and causing and noise, meanwhile, reduce valve
Bar and the degree of wear of valve core case；Secondly, valve core case arranges guide part, does not need to increase other parts to improve stably
Property it is only necessary to ensure the size with the cooperation of throttling chamber in the valve core case course of processing, not only easy for installation but also low cost
Honest and clean.
2nd, the chamber that throttles is separated into first throttle chamber and the second throttling chamber by fixed part, and import connecting hole and first throttle chamber
Connection is it is ensured that the cold-producing medium major part that import connecting hole flows out flows to throttle orifice by first throttle chamber, it is to avoid cold-producing medium and the
Parts in two throttling chambeies produce sinuous flow and noise due to percussion.
3rd, setting first through hole or the second through hole reduce first throttle chamber and the second draught head throttling between chamber, make throttling
The pressure balance of intracavity, it is to avoid the pressure imbalance of fixed part both sides affects the precision that valve rod controls valve element.
4th, guide part arranges circulating face and the cavity wall with throttling chamber forms circulation groove, not only balances the pressure of fixed part both sides
Power, and circulating face is processed with spigot surface simultaneously, it is to avoid repeatedly load and unload and to the heart, meanwhile, the outside of guide part arranges circulating face,
Avoid holing on fixed part or fluting is it is ensured that intensity within valve core case.
5th, fixed part and guide part form mounting groove, and adjusting spring insertion mounting groove can fix, and simplify consolidating of spring
Determine mode, mounting groove and the cooperation adjusting spring simultaneously is prevented effectively from the play adjusting spring, further increases valve core case fortune
Dynamic stability.
Brief description
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the sectional view of heating power expansion valve in embodiment one；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the sectional view of valve core case in embodiment one；
Fig. 4 is the top view of valve core case in embodiment one；
Fig. 5 is the sectional view of valve core case in embodiment two；
Fig. 6 is the top view of valve core case in embodiment two；
Fig. 7 is the sectional view of valve core case in embodiment three；
Fig. 8 is the top view of valve core case in embodiment three.
Specific embodiment
Embodiment one：
A kind of heating power expansion valve is provided in the present embodiment, a kind of as illustrated in figs. 1 and 2, heating power expansion valve, including valve body 1,
The valve element 3 that valve rod 2 and the one end with valve rod 2 are connected, be provided with valve body 3 import 14, outlet 15, throttle orifice 11 and with throttling
The throttling chamber 12 of hole 11 connection, throttle orifice 11 and throttling chamber 12 connect import 14 and outlet 15, and valve rod 2 band movable valve plug 3 controls section
The openings of sizes of discharge orifice 11, throttling is provided with, in chamber 12, the valve core case 4 being connected with valve element 3, and described valve core case 4 is provided with to be transported along valve rod 2
Dynamic direction is slidably connected to the guide part 5 in throttling chamber 12, and described guide part 5 is provided with the guiding of the cavity wall fitting in throttling chamber 12
Face 51.Guide part 5 is slidably connected with throttling chamber 12, and spigot surface 51 fits in the cavity wall in throttling chamber 12, decreases valve element 3 and valve element
Radial direction in seat 4 motor processs is rocked, and not only ensures valve element 3 and the quality of fit of throttle orifice 11 and the control of flow, and keeps away
Exempt from vibration and noise that valve core case 4 rocks and causes, meanwhile, reduce valve rod 2 and the degree of wear of valve core case 4.
In conjunction with Fig. 3 and Fig. 4, valve core case 4 includes the fixed part 41 perpendicular to valve rod 2 direction of motion, and fixed part 41 is tabular
Structure, the chamber 12 that throttles is divided into first throttle chamber 121 and the second throttling chamber 122 by described fixed part 41, is communicated with valve body 1
The import connecting hole 13 in import 14 and first throttle chamber 121, throttle orifice 11 connection first throttle chamber 121 and outlet 15, this enforcement
In example, import connecting hole 13 is in the cavity wall fitted with spigot surface 51 in first throttle chamber 121, and the hole wall of import connecting hole 13
Concordant with the top chamber wall in first throttle chamber 121 it is ensured that cold-producing medium steadily flows into first throttle chamber 121 from import connecting hole 13
Interior, it is to avoid cold-producing medium sinuous flow by drag effect.Guide part 5 be along valve rod 2 direction of motion and to second throttling chamber 122 in prolong
The side wall stretched, guide part 5 is connected to the edge of fixed part 41, and described spigot surface 51 is located at the lateral wall of guide part, and valve core case 4 is no
By being to install or slip, spigot surface 51 all provides guiding and supporting role, in the present embodiment, described spigot surface for valve core case 4
51 extend along valve rod 2 direction of motion, and spigot surface 51 is provided with fillet surface 52 along two sides of valve rod 2 direction of motion, beneficial to valve
Core print seat 4 is attached to throttle in chamber 12.Flow first to first throttle chamber to ensure the cold-producing medium in import connecting hole 13 simultaneously
121, the bottom of guide part 5 is less than import connecting hole 13 when valve element 3 completely closes throttle orifice 11, it is to avoid cold-producing medium is directly entered
Second throttling chamber 122 is impacted the part in the second throttling chamber 122 and is produced sinuous flow and noise.
Fixed part 41 is provided with the first through hole 61 running through fixed part 41, first through hole 61 connection first throttle chamber 121 He
Second throttling chamber 122, cold-producing medium flows into first throttle chamber 121, the then cold-producing medium in first throttle chamber 121 from import connecting hole 13
Most of throttle orifice 11 that passes through flows into outlet 15, and the cold-producing medium of fraction flows into the second throttling intracavity by first through hole 61,
Maintain the pressure balance of fixed part 41 both sides, it is to avoid the refrigerant pressure that fixed part 41 is only subject in first throttle chamber 121 acts on
And carry movable valve plug to move downward, increase the aperture area that valve element 3 is cooperatively formed with throttle orifice 11, reduce the essence that throttling controls
Degree.
Import 14 is parallel with outlet 15 and is oppositely arranged, and import 14, import connecting hole 13 and throttling chamber 12 are located at outlet 15
Lower section, from import 14 flow into cold-producing medium stream through import connector 13, throttling chamber 12, throttle orifice 11 and from outlet 15 outflow.
Import 14 is all shoulder hole with outlet 15, is easy to the connection with extraneous device, and the axis direction of import 14 and outlet 15 and valve
The direction of motion of bar 2 is vertical, this kind of intensity shifting to install the not only entirety of guarantee valve body 1, decreases cold-producing medium in valve simultaneously
The length of flowing in body 1, improves cold-producing medium stream efficiency of movement.
It is provided with, in described second throttling chamber 122, the regulation spring 7 placed along stem movement direction, and adjust spring 7 for pressure
Contracting spring, fixed part 41 and guide part 5 are formed for adjusting the mounting groove 42 that spring 7 is installed, and one end insertion adjusting spring 7 is installed
In groove 42 and be against the bottom surface of mounting groove 42, adjust spring 7 and drive valve core case 4 and valve element 3 resilience upwards, its mounting means is simple
Convenience and stability height.The other end adjusting spring 7 is provided with regulating bolt 8, is provided with reciprocating for regulating bolt in valve body
Bolt hole 16, and bolt hole 16 with second throttling chamber 122 connect, regulating bolt 8 stretches out valve body 1 through bolt hole 16, be easy to behaviour
Author's manual operation.
Valve body 1 is additionally provided with gas returning port 9 and unit head 10, and gas returning port 9 is be arranged in parallel with import 14 and outlet 15, and is located at back
Valve body between QI KOU 9 and outlet 15 is provided with stem through-hole 17, and the other end of valve rod 2 passes through stem through-hole 17 and gas returning port 9 to stretch
Go out valve body 1, and stretch out the valve rod 2 of valve body 1 and be connected with unit head 10, unit head 10 realizes valve element 3 with ovable valve stem 2 axially-movable
Throttling, meanwhile, is provided with sealing ring 21, isolation gas returning port 9 and the cold-producing medium exporting in 15 between stem through-hole 17 and valve rod, it is to avoid
The throttling of the different cold-producing medium mixed influence expansion valve of temperature controls.
In the present embodiment, to upper and lower description, to define with reference to Fig. 1, in Fig. 1, top is upper, under lower section is, for example
Adjust the lower section that spring is located at valve rod, unit head is located at the top of valve core case.
Embodiment two：
The present embodiment provides a kind of heating power expansion valve, and as shown in Figure 5 and Figure 6, described guide part 5 is provided with and moves along valve rod 2
Circulating face 53 and spigot surface 51 that direction extends, spigot surface 51 is alternate with circulating face 53 to be uniformly distributed and is connected with each other, guide part 5
When in insertion throttling chamber 12, circulating face 53 is formed with the cavity wall in throttling chamber 12 and connects first throttle chamber 121 and the second throttling chamber 122
Circulation groove, then the cold-producing medium flowing into first throttle chamber 121 from import connecting hole 13 most of flows into outlet by throttle orifice 11
15, and the cold-producing medium of fraction flows in the second throttling chamber 122 it is ensured that first throttle chamber 121 and the second throttling by circulation groove
The pressure in chamber 122 is equal.Guide part 5 arrange circulating face 53 and with throttling chamber 12 cavity wall formed circulation groove, circulating face 53 with lead
Process to face 51, it is to avoid repeatedly with to the heart, meanwhile, circulation groove is located at outside guide part 5, it is to avoid inside valve core case 4 for handling simultaneously
Hole or slot and weaken the intensity within valve core case 4.
Other non-description scheme reference implementation example one.
Embodiment three：
The present embodiment provides a kind of heating power expansion valve, as described in Fig. 7 and Fig. 8, the connection of described fixed part 41 and guide part 5
Place is communicated with first throttle chamber 121 and second through hole 62 in the second throttling chamber 122, and the second through hole 122 arranges multiple, and uniformly
It is distributed in the junction of fixed part 41 and guide part 5, the cold-producing medium being not only beneficial in first throttle chamber 121 passes rapidly through second and leads to
Hole 62 flows into the second throttling chamber 122, and avoids weakening the intensity of guide part 5 and fixed part 41 junction.
Other non-description scheme reference implementation example one.
In addition to above preferred embodiment, this utility model also has other embodiments, and those skilled in the art can root
It is variously modified according to this utility model and deforms, without departing from spirit of the present utility model, this utility model all should be belonged to
Scope as defined in the claims.
Claims (10)
1. a kind of heating power expansion valve, including valve body, valve rod and the valve element being connected with one end of valve rod, is provided with throttle orifice in valve body
And the throttling chamber connecting with throttle orifice, valve rod with movable valve plug control throttle orifice openings of sizes it is characterised in that：Described throttling
Intracavity is provided with the valve core case being connected with valve element, and described valve core case is provided with the guiding being slidably connected to throttling chamber along stem movement direction
Portion, described guide part is provided with the spigot surface of the cavity wall fitting in throttling chamber.
2. heating power expansion valve according to claim 1 it is characterised in that：What described valve core case included being connected with guide part consolidates
Determine portion, the chamber that throttles is divided into first throttle chamber and the second throttling chamber by fixed part, described valve body is provided with import connecting hole, first segment
Stream chamber connection import connecting hole and throttle orifice.
3. heating power expansion valve according to claim 2 it is characterised in that：First throttle chamber is communicated with described fixed part
First through hole with the second throttling chamber.
4. heating power expansion valve according to claim 2 it is characterised in that：Described fixed part is provided with the junction of guide part
Connection first throttle chamber and second through hole in the second throttling chamber.
5. heating power expansion valve according to claim 2 it is characterised in that：Described guide part is to extend along stem movement direction
Side wall, guide part is additionally provided with the circulating face being connected with spigot surface, and described circulating face is formed with the cavity wall in throttling chamber and connects first
Throttling chamber and the circulation groove in the second throttling chamber.
6. the heating power expansion valve according to claim 2 to 5 any one it is characterised in that：Described import connecting hole is located at
The cavity wall fitted with spigot surface in first throttle chamber, and the hole wall of import connecting hole is flat with the cavity wall in the throttling chamber of setting throttle orifice
Together.
7. the heating power expansion valve according to claim 2 to 5 any one it is characterised in that：Described valve body is additionally provided with and enters
The import of mouth connecting hole connection and the outlet connecting with throttle orifice, the liquid flowing into from import flows through import connector, throttling
Chamber, throttle orifice simultaneously flow out from outlet.
8. the heating power expansion valve according to claim 2 to 5 any one it is characterised in that：Described second throttling intracavity sets
Have the regulation spring driving valve core case resilience, fixed part is platy structure, and guide part stretches into the second throttling chamber, and fixed part with lead
Formed for adjusting the mounting groove that spring is installed to portion, the one end adjusting spring is against the bottom surface of mounting groove, the other end is provided with regulation
Bolt, and regulating bolt stretches out valve body.
9. the heating power expansion valve according to claim 1 to 5 any one it is characterised in that：Described spigot surface is transported along valve rod
Dynamic direction extends, and spigot surface is provided with fillet surface along two sides in stem movement direction.
10. the heating power expansion valve according to claim 1 to 5 any one it is characterised in that：Described valve body is additionally provided with return-air
Mouth and unit head, the valve body between gas returning port and outlet is provided with stem through-hole, and the other end of described valve rod passes through valve rod to lead to
Hole and gas returning port stretch out valve body, and stretch out the valve rod of valve body and be connected with unit head, set sealing device in stem through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648494.9U CN205939839U (en) | 2016-06-23 | 2016-06-23 | Thermal expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620648494.9U CN205939839U (en) | 2016-06-23 | 2016-06-23 | Thermal expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205939839U true CN205939839U (en) | 2017-02-08 |
Family
ID=57929921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620648494.9U Active CN205939839U (en) | 2016-06-23 | 2016-06-23 | Thermal expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205939839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469997A (en) * | 2017-09-07 | 2019-03-15 | 浙江三花智能控制股份有限公司 | Refrigeration system and its electric expansion valve |
| WO2019105334A1 (en) * | 2017-11-30 | 2019-06-06 | 浙江三花汽车零部件有限公司 | Expansion valve |
| WO2020192541A1 (en) * | 2019-03-27 | 2020-10-01 | 杭州三花研究院有限公司 | Heat management assembly and heat management system |
-
2016
- 2016-06-23 CN CN201620648494.9U patent/CN205939839U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469997A (en) * | 2017-09-07 | 2019-03-15 | 浙江三花智能控制股份有限公司 | Refrigeration system and its electric expansion valve |
| CN109469997B (en) * | 2017-09-07 | 2021-10-29 | 浙江三花智能控制股份有限公司 | Refrigerating system and electronic expansion valve thereof |
| WO2019105334A1 (en) * | 2017-11-30 | 2019-06-06 | 浙江三花汽车零部件有限公司 | Expansion valve |
| WO2020192541A1 (en) * | 2019-03-27 | 2020-10-01 | 杭州三花研究院有限公司 | Heat management assembly and heat management system |
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| GR01 | Patent grant |