CN105805989B - Heating power expansion valve - Google Patents
Heating power expansion valve Download PDFInfo
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- CN105805989B CN105805989B CN201410848117.5A CN201410848117A CN105805989B CN 105805989 B CN105805989 B CN 105805989B CN 201410848117 A CN201410848117 A CN 201410848117A CN 105805989 B CN105805989 B CN 105805989B
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Abstract
The present invention provides a kind of heating power expansion valves, comprising: valve body, valve body have the first valve chamber, be provided with outlet in the middle part of valve body；Temperature sensing part；Core assembly, the second end of valve body is set, core assembly is at least partially disposed in the first valve chamber, core assembly includes: valve core case, spool and valve core spring, valve core case has the second valve chamber and valve port, spool and valve core spring are arranged in the second valve chamber, and valve port is connected to the second valve chamber and the first valve chamber, and valve core spring, which is supported to match to merge with spool, is threaded through spool in valve port；Driving member, it is arranged in the first valve chamber, the both ends of driving member are contacted with diaphragm and spool respectively, core assembly further includes position adjustment section, position adjustment section makes core assembly before connecting with valve body, can along the first valve chamber axially movably setting in the first valve chamber, the aperture at valve port is adjusted to preset value.Technical solution of the present invention efficiently solves the problems, such as that the consistency of aperture in the prior art is difficult to ensure.
Description
Technical field
The present invention relates to refrigeration system technical fields, in particular to a kind of heating power expansion valve.
Background technique
In refrigeration systems, heating power expansion valve is important control device, is gone out by evaporator in induction refrigeration system
The temperature of mouth or compressor suction casing carrys out the opening size of control valve, to realize the tune to refrigerant flow in refrigeration system
Section, plays the role of reducing pressure by regulating flow.
The refrigerative circle system of refrigeration system is generally as follows:
As shown in Figure 1, being formed after the reducing pressure by regulating flow that the cryogenic high pressure liquid for carrying out condenser 1 ' passes through heating power expansion valve 2 '
The liquid of low-temp low-pressure, and enter in evaporator 3 ', the gas of high-temperature low-pressure is evaporated and becomes in heat absorption in evaporator 3 '.Come
The high-temperature low-pressure gas of flash-pot 3 ' enters compressor 4 ' and is changed into high temperature and high pressure gas, enters back into condenser 1 ', and
The liquid of cryogenic high pressure is condensed into condenser 1 ', to complete refrigeration cycle.
In above-mentioned refrigeration system, the temperature sensing package 30 ' of heating power expansion valve is located at the outlet of evaporator 3 ' or compressor 4 ' sucks
Section, and it is used to experience the temperature of the outlet of evaporator 3 ' or 4 ' suction casing of compressor, and then the corresponding pressure of the temperature is introduced into
In 2 ' gas tank of heating power expansion valve.The pressure is the unlatching driving force of spool, while the compressed spring of spool lower part can produce spool
The power of raw closing direction.When diaphragm reaches stress balance, spool generates certain aperture relative to valve seat, cold so as to adjust
Condenser 1 ' arrives the refrigerant flow of evaporator 3 '.
Specifically, as shown in Figures 2 to 4, the outlet of heating power expansion valve is connected with the import of evaporator, when enter evaporator
Refrigerant flow it is less than normal when, evaporator outlet temperature is excessively high, and the temperature of temperature sensing package 30 ' can be made also higher.In this way, temperature sensing package
Refrigerant pressure in 30 ' is bigger than normal, which is transmitted to the intracavitary of gas tank lid 13 ', and diaphragm 40 ' is caused to move down.Diaphragm 40 '
Driver blade 12 ' can be headed on by moving down, and driver blade 12 ' heads on support seat 11 ', and support seat 11 ' heads on drive rod 62 ', drive rod
62 ' head on spool 52 ', move down spool 52 ', so that the aperture h ' for forming spool 52 ' and valve core case 51 ' increases.Into
And refrigerant is become larger by the flow of heating power expansion valve valve port 90 ', final adjust also becomes larger the flow into evaporator.Instead
It, when the refrigerant flow for entering evaporator is bigger than normal, evaporator outlet temperature is too low, causes the temperature of temperature sensing package 30 ' also inclined
It is low.Refrigerant pressure in temperature sensing package 30 ' is less than normal, which is transmitted to the intracavitary of gas tank lid 13 ', with 52 ' lower part of spool
Under the collective effect of compressed spring, diaphragm 40 ' is moved up, and spool 52 ' is caused to move up, and makes spool 52 ' and valve core case 51 '
The aperture h ' of formation reduces, and refrigerant is become smaller by the flow of heating power expansion valve valve port 90 ', and final adjust makes into evaporator
Flow also becomes smaller.
Heating power expansion valve is mainly to come adjusting refrigerant flow rate, therefore, valve by adjusting the aperture h ' at spool and valve port
Aperture consistency to get well.Above-mentioned aperture refers to two extreme positions (closed position and the maximum flow area position of spool movement
The distance between set).Above-mentioned aperture is the characteristic of heating power expansion valve, once heating power expansion valve can not be adjusted again after assembling.
In above-mentioned heating power expansion valve, since the aperture of valve is determined by multiple element sizes, each parts machining tolerance and dress
With tolerance stack, it is difficult to ensure that the consistency of aperture.The bad total displacement that can make diaphragm of aperture consistency and upper and lower displacement distribution
There is deviation, and then the consistency of the maximum cooling capacity of influence heating power expansion valve, service life and product.
Summary of the invention
The main purpose of the present invention is to provide a kind of heating power expansion valves, to solve the consistency of aperture in the prior art
The problem of being difficult to ensure.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of heating power expansion valve, comprising: valve body,
Valve body has the first valve chamber, is provided with outlet in the middle part of valve body；The first end of valve body, temperature sensing part packet is arranged in temperature sensing part
Include the diaphragm that displacement is generated according to the temperature of temperature sensing package；The second end of valve body is arranged in core assembly, and core assembly is at least partly
Ground is arranged in the first valve chamber, and core assembly includes: valve core case, spool and valve core spring, valve core case have the second valve chamber with
And valve port, spool and valve core spring are arranged in the second valve chamber, valve port is connected to the second valve chamber and the first valve chamber, valve core spring and valve
Core, which is supported, is threaded through spool in valve port with merging；Driving member, be arranged in the first valve chamber, the both ends of driving member respectively with diaphragm
And spool contacts, core assembly further includes position adjustment section, and position adjustment section makes core assembly before connecting with valve body,
Can along the first valve chamber axially movably setting in the first valve chamber, the aperture at valve port is adjusted to preset value.
Further, position adjustment section is support base, and valve core case is connected on support base, radial direction of the support base in valve core case
On protrude from valve core case, the circumferential side wall of support base is adapted and matches with the inner wall of valve body.
Further, it is provided with flowing hole on support base, entrance sleeve is connected on support base, flowing hole connection import connects
Pipe and the second valve chamber.
Further, driving member includes driver blade and drive rod, and driver blade includes central through hole, one end riveting of drive rod
In central through hole.
Further, heating power expansion valve further includes the pedestal being mounted in the first valve chamber, and pedestal is located at the first end of valve body
Between outlet, adjustment spring is provided between driver blade and pedestal.
Further, driver blade includes stacked the first driver blade and the second driver blade, the first driver blade be located at diaphragm and
Between second driver blade, less than the diameter of the first driver blade, adjustment spring is set in the second driver blade for the diameter of the second driver blade
On.
Further, heating power expansion valve further includes the sleeve being mounted on the base, and drive rod is threaded through in the inner hole of sleeve.
According to another aspect of the present invention, a kind of heating power expansion valve is provided, comprising: valve body, valve body have the first valve chamber,
Outlet is provided in the middle part of valve body；Temperature sensing part, is arranged in the first end of valve body, and temperature sensing part includes the temperature according to temperature sensing package
Generate the diaphragm of displacement；Core assembly, is arranged in the second end of valve body, and core assembly is at least partially disposed on the first valve chamber
Interior, core assembly includes: valve core case, spool and valve core spring, and valve core case has the second valve chamber and valve port, spool and spool
Spring is arranged in the second valve chamber, and valve port is connected to the second valve chamber and the first valve chamber, and valve core spring, which is supported to match to merge with spool, makes valve
Core is threaded through in valve port；Driving member is arranged in the first valve chamber, and the both ends of driving member are contacted with diaphragm and spool respectively,
Wherein, there is fitting limit, core assembly is mounted in fitting limit, and core assembly is in the difference in fitting limit on valve body
Aperture when position at valve port is not identical.
Further, core assembly further includes support base, and valve core case is connected on support base, diameter of the support base in valve core case
It projects upwards in valve core case, fitting limit is formed on the inner wall of valve body, and the circumferential side wall of support base is mutually fitted with the inner wall of valve body
Match and matches.
Further, it is provided with flowing hole on support base, entrance sleeve is connected on support base, flowing hole connection import connects
Pipe and the second valve chamber.
Further, driving member includes driver blade and drive rod, and driver blade includes central through hole, one end riveting of drive rod
In central through hole.
Further, heating power expansion valve further includes the pedestal being mounted in the first valve chamber, and pedestal is located at the first end of valve body
Between outlet, adjustment spring is provided between driver blade and pedestal.
Further, driver blade includes stacked the first driver blade and the second driver blade, the first driver blade be located at diaphragm and
Between second driver blade, less than the diameter of the first driver blade, adjustment spring is set in the second driver blade for the diameter of the second driver blade
On.
It applies the technical scheme of the present invention, position adjustment section is provided in core assembly.Connect in core assembly and valve body
Before connecing, core assembly mobile position in the first valve chamber of valve body can be allow to adjust by the above-mentioned position adjustment section of movement
It is whole.In the case where the top to diaphragm applies certain pressure, the driving member contacted with diaphragm is solid relative to valve body position
It is fixed.Since driving member and the spool in core assembly contact, spool is fixed relative to valve body position.Valve in core assembly
The setting of core spring supports cooperation between spool and position adjustment section, and with spool.Since spool is threaded through in valve port, in this way may be used
The aperture at valve port is adjusted with the relative position by adjusting spool and valve core case.The movement of position adjustment section can drive valve
The movement of core print seat, and then the aperture at adjustable valve port, thus asking of being difficult to ensure of the consistency for efficiently solving aperture
Topic.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the course of work schematic diagram of refrigeration system in the prior art；
Fig. 2 shows the structural schematic diagrams of heating power expansion valve in the prior art；
Fig. 3 shows the spool of heating power expansion valve in the prior art and the schematic diagram of the aperture h ' at valve port；
Fig. 4 shows the structural schematic diagram of the driving member of heating power expansion valve in the prior art；
Fig. 5 shows the structural schematic diagram of one embodiment of heating power expansion valve according to the present invention；
Fig. 6 shows the partial enlarged view at the position I of Fig. 5；
Fig. 7 shows the structural schematic diagram of the driving member of the heating power expansion valve of Fig. 5；
Fig. 8 shows the structural schematic diagram of the valve body of the heating power expansion valve of Fig. 5；
Fig. 9 shows the temperature sensing part of the valve body of the heating power expansion valve of Fig. 5 and the structural schematic diagram of diaphragm；
Figure 10 shows the assembling schematic diagram of the valve body of the heating power expansion valve of Fig. 5；
Figure 11 shows the assembling schematic diagram of the valve body of another embodiment of heating power expansion valve according to the present invention；And
Figure 12 shows the general assembly drawing of the valve body of the heating power expansion valve of Figure 11.
Wherein, the above drawings include the following reference numerals:
1 ', condenser；2 ', heating power expansion valve；3 ', evaporator；4 ', compressor；11 ', support seat；12 ', driver blade；
13 ', gas tank lid；30 ', temperature sensing package；51 ', valve core case；52 ', spool；40 ', diaphragm；62 ', drive rod；90 ', valve port；H ', it opens
Degree；10, valve body；102, valve body lower end face；21, the first valve chamber；22, the second valve chamber；30, temperature sensing package；40, diaphragm；50, spool group
Part；51, valve core case；52, spool；53, valve core spring；54, support base；541, support base lower end surface；61, driver blade；62, it is driven
Bar；621, drive rod lower end surface；70, pedestal；80, adjustment spring；90, valve port；100, sleeve；13, gas tank lid；14, capillary；
H, aperture.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 5 and Figure 6, the heating power expansion valve of the present embodiment include valve body 10, temperature sensing part, core assembly 50 and
Driving member.Valve body 10 has the first valve chamber 21, and the middle part of valve body 10 is provided with outlet.The first of valve body 10 is arranged in temperature sensing part
End, temperature sensing part include the diaphragm 40 that displacement is generated according to the temperature of temperature sensing package 30.The of valve body 10 is arranged in core assembly 50
Two ends, core assembly 50 are at least partially disposed in the first valve chamber 21.Core assembly 50 include valve core case 51, spool 52 and
Valve core spring 53.Valve core case 51 has the second valve chamber 22 and valve port 90, and spool 52 and valve core spring 53 are arranged in the second valve chamber
In 22, valve port 90 is connected to the second valve chamber 22 and the first valve chamber 21, and valve core spring 53, which is supported to match to merge with spool 52, wears spool 52
It is located in valve port 90.Driving member is arranged in the first valve chamber 21, and the both ends of driving member abut and match with diaphragm 40 and spool 52 respectively
It closes.Core assembly 50 further includes position adjustment section, and position adjustment section makes core assembly 50 before connecting with valve body 10, can be along
The axially movably setting of one valve chamber 21 is adjusted to preset value in the first valve chamber 21, by the aperture h at valve port 90.
Using the heating power expansion valve of the present embodiment, position adjustment section is provided in core assembly 50.In core assembly 50
Before connecting with valve body 10, core assembly 50 can be made to move in the first valve chamber 21 of valve body 10 by the above-mentioned position adjustment section of movement
It is dynamic.In the case where the top to diaphragm 40 applies certain pressure, the driving member contacted with diaphragm 40 is relative to valve body 10
Position is fixed.Since driving member and the spool 52 in core assembly 50 contact, spool 52 is fixed relative to 10 position of valve body.
The setting of valve core spring 53 in core assembly 50 supports cooperation between spool 52 and position adjustment section, and with spool 52.Due to
Spool 52 is threaded through in valve port 90, can be adjusted by adjusting the relative position of spool 52 and the valve core case 51 in core assembly 50
Aperture at whole valve port 90.The movement of position adjustment section can drive the movement of valve core case 51, and then at adjustable valve port 90
Aperture, to efficiently solve the problems, such as that the consistency of aperture is difficult to ensure.It can after the position of position adjustment section determines
Position adjustment section and valve body 10 to be fixed together.The mode of connection is preferably welded.
On the other hand, in the present embodiment, there is fitting limit, core assembly 50 is mounted on the peace on valve body 10
It fills in range.Wherein, the aperture h that core assembly 50 is in when the different location in fitting limit at the valve port 90 is not identical.
By adjusting position of the core assembly 50 in fitting limit and then it is capable of the relative position of adjusting spool and valve core case and adjusts
Aperture at valve port.In the present embodiment, above-mentioned fitting limit is formed on the inner wall of valve body 10.
As shown in Figure 5 and Figure 6, in the heating power expansion valve of the present embodiment, position adjustment section is support base 54, valve core case 51
It is connected on support base 54, support base 54 radially protrudes from valve core case 51, the circumferential side wall of support base 54 valve core case 51
It is adapted and matches with the inner wall of valve body 10, be provided with flowing hole on support base 54.Above structure is simple, easy to accomplish.
The circumferential side wall of support base 54 is adapted and matches with the inner wall of valve body 10, and the leakproofness of expansion valve also can be enhanced.Branch
Flowing hole on support seat 54 can be such that refrigerant flows through.
As shown in Figure 5 and Figure 6, it in the heating power expansion valve of the present embodiment, is provided on support base 54 and valve core spring 53
The locating slot of cooperation.Above-mentioned locating slot plays the role of positioning to valve core spring 53, and valve core spring 53 can be prevented in support base
It generates and moves radially on 54.
As shown in Figure 5 and Figure 6, in the heating power expansion valve of the present embodiment, entrance sleeve, overcurrent are connected on support base 54
Hole is connected to entrance sleeve and the second valve chamber 22.Entrance sleeve is connected to flowing hole, the second valve chamber 22, can make refrigerant swimmingly
It is flowed into the second valve chamber 22.
In the prior art, as shown in figure 4, driver blade 12 ' is linked together with support seat 11 ' by riveting method.It passes
Lever 62 ' is independently arranged with driver blade 12 ' and support seat 11 '.Above structure increases amount of parts and build-up tolerance.
The technical solution of the present embodiment solves the above problem.As shown in fig. 7, in the heating power expansion valve of the present embodiment,
Driving member includes driver blade 61 and the drive rod connecting with driver blade 61 62.Driver blade 61 in above-mentioned driving member is integrated knot
Structure reduces number of parts and build-up tolerance, reduces costs simultaneously.
As shown in fig. 7, driver blade 61 includes central through hole, and central through hole is rank in the heating power expansion valve of the present embodiment
The one end in terraced hole, drive rod 62 is riveted in central through hole.The riveting structure of drive rod 62 and driver blade 61 is simple, is easy to
It realizes, and connectivity robustness is stronger.
As shown in figure 5 and figure 7, in the heating power expansion valve of the present embodiment, heating power expansion valve further includes being mounted on the first valve
Pedestal 70 in chamber 21, pedestal 70 are located between the first end and outlet of valve body 10, are provided between driver blade 61 and pedestal 70
Adjustment spring 80.Driver blade 61 includes stacked the first driver blade and the second driver blade, and the first driver blade is located at diaphragm 40 and the
Between two driver blades, less than the diameter of the first driver blade, adjustment spring 80 is set in the second driver blade for the diameter of the second driver blade
On.
Specifically, pedestal 70 is fixed in the first valve chamber 21, and adjusting bullet is provided between driver blade 61 and pedestal 70
Spring 80.One end of adjustment spring 80 is set on the second driver blade, and the other end setting of adjustment spring 80 is on mount 70.When right
When the top of diaphragm 40 applies certain pressure, adjustment spring 80 generates upward power to driver blade 61 and diaphragm 40, diaphragm 40 to
Lower mobile a certain distance, diaphragm 40 head on driver blade 61, and driver blade 61 heads on drive rod 62, and drive rod 62 heads on spool 52,
Spool 52 is moved down relative to valve core case 51, and aperture h is generated between spool 52 and valve port 90.The setting of adjustment spring 80, can
Play the role of buffering to diaphragm 40, is damaged caused by mitigating diaphragm 40 due to top pressure is excessive, extend the use of diaphragm 40
Service life.
As shown in Figure 7 and Figure 8, in the heating power expansion valve of the present embodiment, heating power expansion valve further includes being mounted on pedestal 70
On sleeve 100, drive rod 62 is threaded through in the inner hole of sleeve 100.Sleeve 100 can play the work of positioning to drive rod 62
With.
In the present embodiment, the sleeve 100 in component shown in Fig. 7 and gas tank seat shown in Fig. 8 is in the form of concentric shafts
It is assembled in valve body 10, the upper surface of sleeve 100 can limit the distance to bottom offset of driver blade 61.
As shown in figure 9, temperature sensing part is by gas tank lid 13, capillary 14 and temperature-sensitive in the heating power expansion valve of the present embodiment
Packet 30 is formed by welding in advance.Weld together at the top of above-mentioned temperature sensing part and gas tank seat shown in Fig. 8, and
The axis of the gentle block of the axis of temperature sensing part is overlapped.Diaphragm 40 is arranged between the gentle block of temperature sensing part, and temperature-sensitive portion
Part and diaphragm 40 are mutually indepedent, and gas tank seat and diaphragm 40 are mutually indepedent.
As shown in Figure 10, in the present embodiment, the main element of components and the core assembly 50 such as including valve body 10 are being assembled
When, first apply air pressure above the diaphragm 40 of main element, diaphragm 40 is made to reach maximum to bottom offset.At this point, driver blade 61 with
Sleeve 100 fits closely, and drive rod 62 reaches maximum to bottom offset, and the lower end surface of drive rod 62 and the lower end surface of valve body 10 are formed
Distance L.Because distance L can not change once assembly is completed, the influence of each parts design tolerance and build-up tolerance will lead to away from
It is bad from the consistency of L.
As shown in figs. 6 and 10, the circumferential side wall of support base 54 is adapted and matches with the inner wall of valve body 10, spool
Component 50 can be moved up and down axially relative to valve body 10.The lower end surface of support base 54 and the lower end surface of valve body 10 are formed
Distance A.By moving up and down core assembly 50 come adjustable range A, to adjust aperture h, aperture is made to reach setting value, to subtract
The influence for the deviation that small machining tolerance and build-up tolerance generate.
In another embodiment, as shown in figure 11, including valve body 10 etc. in the main element of components, in advance by refrigerant
It is filled in temperature sensing package 30.Under identical environment temperature, refrigerant, which generates certain pressure to diaphragm 40, moves down diaphragm 40, drives and passes
Lever 62 moves down, and drive rod lower end surface 621 and valve body lower end face 102 form distance L1.Due to parts machining error and assembly
The influence that error generates, the consistency of L1 are bad.At this point, using special tooling, with drive rod lower end surface 621 for benchmark face, if
It is desired distance that meter, which requires the drive rod lower end surface 621 of control to arrive the distance in valve body lower end face 102,.By valve body lower end face 102
Plane Vehicle Processing is carried out, by the indefinite L1 strict control of original size to desired distance.As shown in figure 12, by Vehicle Processing
Main element assembles in the direction of the arrow with core assembly 50, the valve body lower end face 102 and support base lower end of 10 Vehicle Processing of valve body
Face 541 is overlapped, and forms heating power expansion valve.
It can be seen from the above description that the above embodiments of the present invention may insure the consistency of aperture h, in turn
It can guarantee the design nominal capacity and service life of heating power expansion valve.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of heating power expansion valve characterized by comprising
Valve body (10), the valve body (10) have the first valve chamber (21), are provided with outlet in the middle part of the valve body (10)；
The first end in the valve body (10) is arranged in temperature sensing part, and the temperature sensing part includes the temperature according to temperature sensing package (30)
Generate the diaphragm (40) of displacement；
Core assembly (50), is arranged the second end in the valve body (10), and the core assembly (50) is at least partially disposed on
In first valve chamber (21), the core assembly (50) includes: valve core case (51), spool (52) and valve core spring (53),
The valve core case (51) has the second valve chamber (22) and valve port (90), the spool (52) and the valve core spring (53) setting
In second valve chamber (22), the valve port (90) is connected to second valve chamber (22) and first valve chamber (21), described
Valve core spring (53), which is supported to match to merge with the spool (52), is threaded through the spool (52) in the valve port (90)；
Driving member, setting in first valve chamber (21), the both ends of the driving member respectively with the diaphragm (40) and described
Spool (52) contacts,
The core assembly (50) further includes position adjustment section, the position adjustment section make the core assembly (50) with it is described
Before valve body (10) connection, can along first valve chamber (21) axially movably setting in first valve chamber (21),
The aperture (h) at the valve port (90) is adjusted to preset value, the position adjustment section is support base (54), the valve core case
(51) it is connected on the support base (54).
2. heating power expansion valve according to claim 1, which is characterized in that the support base (54) is in the valve core case (51)
Radially protrude from the valve core case (51), the circumferential side wall of the support base (54) and the inner wall of the valve body (10) are mutually fitted
Match and matches.
3. heating power expansion valve according to claim 2, which is characterized in that it is provided with flowing hole on the support base (54),
Entrance sleeve is connected on the support base (54), the flowing hole is connected to the entrance sleeve and second valve chamber (22).
4. heating power expansion valve according to claim 1, which is characterized in that the driving member includes driver blade (61) and transmission
Bar (62), the driver blade (61) includes central through hole, and one end of the drive rod (62) is riveted in the central through hole.
5. heating power expansion valve according to claim 4, which is characterized in that the heating power expansion valve further include be mounted on it is described
Pedestal (70) in first valve chamber (21), the pedestal (70) are located between the first end and the outlet of the valve body (10),
Adjustment spring (80) are provided between the driver blade (61) and the pedestal (70).
6. heating power expansion valve according to claim 5, which is characterized in that the driver blade (61) includes the first stacked biography
Movable plate and the second driver blade, first driver blade is between the diaphragm (40) and second driver blade, and described second
The diameter of driver blade is less than the diameter of first driver blade, and the adjustment spring (80) is set on second driver blade.
7. heating power expansion valve according to claim 5, which is characterized in that the heating power expansion valve further include be mounted on it is described
Sleeve (100) on pedestal (70), the drive rod (62) are threaded through in the inner hole of the sleeve (100).
8. a kind of heating power expansion valve characterized by comprising
Valve body (10), the valve body (10) have the first valve chamber (21), are provided with outlet in the middle part of the valve body (10)；
The first end in the valve body (10) is arranged in temperature sensing part, and the temperature sensing part includes the temperature according to temperature sensing package (30)
Generate the diaphragm (40) of displacement；
Core assembly (50), is arranged the second end in the valve body (10), and the core assembly (50) is at least partially disposed on
In first valve chamber (21), the core assembly (50) includes: valve core case (51), spool (52) and valve core spring (53),
The valve core case (51) has the second valve chamber (22) and valve port (90), the spool (52) and the valve core spring (53) setting
In second valve chamber (22), the valve port (90) is connected to second valve chamber (22) and first valve chamber (21), described
Valve core spring (53), which is supported to match to merge with the spool (52), is threaded through the spool (52) in the valve port (90)；
Driving member, setting in first valve chamber (21), the both ends of the driving member respectively with the diaphragm (40) and described
Spool (52) contacts,
Wherein, there is fitting limit, the core assembly (50) is mounted in the fitting limit, described on the valve body (10)
The aperture (h) that core assembly (50) is in when the different location in the fitting limit at the valve port (90) is not identical, described
Core assembly (50) further includes support base (54), and the valve core case (51) is connected on the support base (54).
9. heating power expansion valve according to claim 8, which is characterized in that the support base (54) is in the valve core case (51)
Radially protrude from the valve core case (51), the fitting limit is formed on the inner wall of the valve body (10), the support
The circumferential side wall of seat (54) is adapted and matches with the inner wall of the valve body (10).
10. heating power expansion valve according to claim 9, which is characterized in that it is provided with flowing hole on the support base (54),
Entrance sleeve is connected on the support base (54), the flowing hole is connected to the entrance sleeve and second valve chamber (22).
11. heating power expansion valve according to claim 8, which is characterized in that the driving member includes driver blade (61) and passes
Lever (62), the driver blade (61) includes central through hole, and one end of the drive rod (62) is riveted in the central through hole.
12. heating power expansion valve according to claim 11, which is characterized in that the heating power expansion valve further includes being mounted on institute
State the pedestal (70) in the first valve chamber (21), the pedestal (70) is located at the first end and the outlet of the valve body (10)
Between, adjustment spring (80) are provided between the driver blade (61) and the pedestal (70).
13. heating power expansion valve according to claim 12, which is characterized in that the driver blade (61) includes stacked first
Driver blade and the second driver blade, first driver blade is between the diaphragm (40) and second driver blade, and described
The diameter of two driver blades is less than the diameter of first driver blade, and the adjustment spring (80) is set in second driver blade
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848117.5A CN105805989B (en) | 2014-12-29 | 2014-12-29 | Heating power expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848117.5A CN105805989B (en) | 2014-12-29 | 2014-12-29 | Heating power expansion valve |
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| Publication Number | Publication Date |
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| CN105805989A CN105805989A (en) | 2016-07-27 |
| CN105805989B true CN105805989B (en) | 2019-01-29 |
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|---|---|---|---|
| CN201410848117.5A Active CN105805989B (en) | 2014-12-29 | 2014-12-29 | Heating power expansion valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444724B (en) * | 2010-10-08 | 2015-10-14 | 浙江三花股份有限公司 | The heating power expansion valve of a kind of valve hole part and these parts of use |
| CN102589207B (en) * | 2011-01-14 | 2015-07-01 | 浙江三花股份有限公司 | Refrigeration system and thermostatic expansion valve thereof |
| CN102588641B (en) * | 2011-01-14 | 2016-05-04 | 浙江三花股份有限公司 | Refrigeration system and heating power expansion valve thereof |
| JP2012225561A (en) * | 2011-04-19 | 2012-11-15 | Tgk Co Ltd | Expansion valve |
| CN102979945B (en) * | 2011-09-02 | 2016-08-31 | 浙江三花股份有限公司 | A kind of heating power expansion valve |
| CN202229490U (en) * | 2011-09-16 | 2012-05-23 | 浙江三花股份有限公司 | Valve part |
| CN103245141B (en) * | 2013-05-28 | 2016-04-27 | 浙江三花制冷集团有限公司 | A kind of heating power expansion valve and assembly method thereof |
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Effective date of registration: 20170116 Address after: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant before: ZHEJIANG SANHUA Co.,Ltd. |
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Effective date of registration: 20220823 Address after: 312500 Daming new area, 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. |