CN208778750U - A kind of diaphragm type electromagnetic valve for refrigeration - Google Patents
A kind of diaphragm type electromagnetic valve for refrigeration Download PDFInfo
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- CN208778750U CN208778750U CN201821441901.4U CN201821441901U CN208778750U CN 208778750 U CN208778750 U CN 208778750U CN 201821441901 U CN201821441901 U CN 201821441901U CN 208778750 U CN208778750 U CN 208778750U
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- pilot valve
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Abstract
The utility model discloses a kind of diaphragm type electromagnetic valve for refrigeration, includes valve body, with medium entrance, inlet plenum, media outlet, outlet chamber and valve port channel；Valve deck；Pilot valve mouth, is placed in the top in the valve port channel, and the lower end of the pilot valve mouth is connected with the valve port channel；Diaphragm unit, the periphery of its lower end for being surrounded on the pilot valve mouth, the diaphragm unit has intermediate diaphragm, upper press cover plate and the lower seal pad being placed in above the valve port channel, the inlet plenum is separated into chamber top and chamber lower portion, the connection waveform segment that there is the intermediate diaphragm outer straightway, interior straightway to connect the outer straightway Yu the interior straightway by the intermediate diaphragm；And armature component.The utility model has the beneficial effects that: improving the reliability of sealing, while the requirement to the machining accuracy of part is reduced, reduces the diameter of pilot valve mouth, to improve valve opening ability.
Description
Technical field
The utility model relates to a kind of diaphragm type electromagnetic valve for refrigeration.
Background technique
Referring to Figure 1, the diaphragm 1 of existing diaphragm type electromagnetic valve for refrigeration uses glass fabric at present, and two sides are used
Teflon package.Diaphragm 1 is whole in planar.When solenoid valve opens or closes, diaphragm 1, which needs to move integrally, is just able to satisfy function
It can need.When solenoid valve is opened, the amount of leakage of diaphragm and valve cover chamber plays conclusive effect to the unlatching of valve.Therefore to diaphragm
And valve body, the fit dimension and surface smoothness requirements between valve deck are stringent, want to the machining accuracy of diaphragm and related components
Ask higher, the slightly some deviations of dimensioned are affected to sealing effect, and leakage is caused to increase, and solenoid valve is fail to open.
Utility model content
The technical problems to be solved in the utility model be diaphragm be integrally in it is planar, a kind of novel diaphragm type refrigeration is provided
Use solenoid valve.
In order to realize the purpose, the technical solution of the utility model is as follows: a kind of diaphragm type electromagnetic valve for refrigeration includes
Have,
Valve body, with medium entrance, the inlet plenum being connected with the medium entrance, media outlet, with given an account of
The valve port channel of outlet chamber and the connection inlet plenum and the outlet chamber that matter outlet is connected, the snout cavity
Room has upward opening, and the inner face of the inlet plenum is formed with positioning step, and the valve port channel is vertically extending；
Valve deck, is used to cover the upward opening, and the bottom surface of the valve deck is formed with corresponding with the positioning step
Positioning protrusion；
Pilot valve mouth is placed in the top in the valve port channel, and the pilot valve opening's edge is vertically extending, under the pilot valve mouth
End is connected with the valve port channel；
Diaphragm unit is surrounded on the periphery of the lower end of the pilot valve mouth, and the diaphragm unit, which has, is placed in the valve
Intermediate diaphragm above mouthful channel, the upper press cover plate being placed in above the intermediate coat piece and it is placed in the intermediate diaphragm lower section
Lower seal pad, the inlet plenum is separated into chamber top and chamber lower portion by the intermediate diaphragm, the intermediate diaphragm tool
There is the connection waveform segment of outer straightway, interior straightway and the connection outer straightway and the interior straightway, wherein described outer straight
Line segment is placed between the positioning step and the positioning protrusion, and the interior straightway is for covering the valve port channel
End is formed with the balance port for being connected to the chamber top and the chamber lower portion and the balance port on the connection waveform segment
Internal diameter is less than the internal diameter of the pilot valve mouth；And
Armature component is placed in the top of the pilot valve mouth, and the armature component described in selectively sealing for leading
The upper end of valve port.
As a kind of preferred embodiment of diaphragm type electromagnetic valve for refrigeration, the intermediate diaphragm uses teflon material.
As a kind of preferred embodiment of diaphragm type electromagnetic valve for refrigeration, the armature component has moving armature and is fixed on
The armature of the moving armature bottom seals, and the armature sealing corresponds to the upper end of the pilot valve mouth, the moving armature
Direction of action is vertical.
As a kind of preferred embodiment of diaphragm type electromagnetic valve for refrigeration, the connection waveform segment includes 1 or more wave crest.
As a kind of preferred embodiment of diaphragm type electromagnetic valve for refrigeration, the pilot valve mouth is in the diaphragm unit upper and lower two
End is respectively formed locating flange and lower locating flange, and the bottom surface of the upper locating flange and the top surface of the upper press cover plate are practised physiognomy
Contact, the top surface of the lower locating flange and the bottom surface phase face contact of the lower seal pad, the cover clamp, the intermediate coat
Piece and the lower seal pad three phase tight fit.
Also include air distribution disk as a kind of preferred embodiment of diaphragm type electromagnetic valve for refrigeration, is surrounded on the valve port
It the periphery in channel and is placed between the outer straightway and the positioning step, the air distribution disk is the stainless steel material of eyelet
Disk, the entirety of the air distribution disk are in interior low outer height.
Compared with prior art, the beneficial effects of the utility model at least that: for intermediate diaphragm, outer straightway is consolidated
It is fixed, and interior straightway and connection waveform segment are not fixed, guarantee that interior straightway and connection waveform segment freely move up and down, and form
Static seal improves the reliability of sealing, while reducing the requirement to the machining accuracy of part, reduces the diameter of pilot valve mouth, thus
Improve valve opening ability.
In addition to the utility model described above solve the technical issues of, constitute technical solution technical characteristic and by
Except beneficial effect brought by the technical characteristic of these technical solutions, other technologies problem that the utility model can solve,
The other technical characteristics for including in technical solution and these technical characteristic bring beneficial effects, will make in conjunction with attached drawing into one
Step detailed description.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art.
Fig. 2 is the structural schematic diagram of an embodiment of the present invention.
Fig. 3 is the structural schematic diagram of diaphragm unit in an embodiment of the present invention.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.It needs herein
It is bright, the explanation of these embodiments is used to help to understand the utility model, but do not constitute the limit to the utility model
It is fixed.In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
Fig. 2 is referred to, a kind of diaphragm type electromagnetic valve for refrigeration is shown in the figure.
The solenoid valve is mainly by portions such as valve body 1, valve deck 2, pilot valve mouth 3, diaphragm unit 4, armature component 5 and air distribution disks 6
Part composition.
Inlet plenum 12, the media outlet that the valve body 1 has medium entrance 11, is connected with the medium entrance 11
13, outlet chamber 14 and the connection inlet plenum 12 and the outlet chamber 14 being connected with the media outlet 13
Valve port channel 15.11 left direction of medium entrance extends.13 right direction of media outlet extends.The inlet plenum
12 have upward opening.The inner face of the inlet plenum 12 is formed with positioning step.The positioning step is from the inlet plenum
12 inner face beginning extends internally.The valve port channel 15 is vertically extending.
The valve deck 2 is fixed on the valve body 1.The valve deck 2 is for covering the upward opening.The valve deck 2
Bottom surface is formed with positioning protrusion corresponding with the positioning step.Begin to downward the bottom surface of the positioning protrusion from the valve deck 2
It stretches.
The pilot valve mouth 3 is placed in the top in the valve port channel 15.The pilot valve mouth 3 is vertically extending.The pilot valve
The lower end of mouth 3 is connected with the valve port channel 15.
Fig. 3 is referred to, the diaphragm unit 4 is surrounded on the periphery of the lower end of the pilot valve mouth 3.The diaphragm unit 4 has
Have the intermediate diaphragm 41 for being placed in 15 top of the valve port channel, the upper press cover plate 42 being placed in above the intermediate diaphragm 41 and
It is placed in the lower seal pad 43 of 41 lower section of intermediate diaphragm.The inlet plenum 12 is separated into chamber by the intermediate diaphragm 41
Top and chamber lower portion.The intermediate diaphragm 41 uses teflon material.The intermediate diaphragm 41 has outer straightway 411, interior
The connection waveform segment 413 of straightway 412 and the connection outer straightway 411 and the interior straightway 412.As it can be seen that the centre
The non-fully plane of diaphragm 41, but there is Waveform Design.Wherein, the outer straightway 411 is placed in the positioning step and institute
It states between positioning protrusion.Whereby, the outer straightway 411 is fixed.The outer diameter of the interior straightway 412 is greater than the valve port channel
15 outer diameter.The interior straightway 412 is used to cover the upper end in the valve port channel 15.The connection waveform segment 413 includes 1
Above wave.In the present embodiment, an only wave.The connection chamber top and institute are formed on the connection waveform segment 413
The internal diameter for stating the balance port 4130 of chamber lower portion and the balance port 4130 is less than the internal diameter of the pilot valve mouth 3.
The pilot valve mouth 3 is respectively formed upper locating flange 31 and lower locating flange in 4 upper/lower terminal of diaphragm unit
32.The top surface phase face contact of the bottom surface of the upper locating flange 31 and the upper press cover plate 42.The top of the lower locating flange 32
The bottom surface phase face contact in face and the lower seal pad 43.The cover clamp 42, the intermediate diaphragm 41 and the lower seal pad
43 three's phase tight fits.
The armature component 5 is placed in the top of the pilot valve mouth 3.The armature component 5 is for selectively sealing institute
State the upper end of pilot valve mouth 3.The armature component 5 has moving armature and is fixed on the armature sealing of the moving armature bottom.
The armature sealing corresponds to the upper end of the pilot valve mouth 3.The direction of action of the moving armature is vertical.
The air distribution disk 6 be surrounded on the periphery in the valve port channel 15 and be placed in the outer straightway 411 with it is described fixed
Between the step of position.The air distribution disk 6 is the stainless steel material disk of eyelet.The entirety of the air distribution disk 6 is in interior low outer height.Due to
The intermediate diaphragm uses teflon material, and material is partially soft, and the air distribution disk 6 is used to support the intermediate diaphragm 41.And it is interior low
Outer height, arragement construction more reasonableization.
Working principle is as follows: when solenoid valve must not be electric, the moving armature drives under the action of reset spring and self weight
The armature seals the upper-end contact with the pilot valve mouth 3 and seals the pilot valve mouth 3.Since the intermediate diaphragm 41 separates
The chamber top and the chamber lower portion, the high-pressure medium of the medium entrance 11 can only be passed through described by the chamber lower portion
Balance port enters the chamber top, and forms high pressure in the top of the intermediate diaphragm 41.The institute of the intermediate diaphragm 41
It states interior straightway 412 and the connection waveform segment 413 moves downward under the action of above-mentioned high pressure, seal the valve port channel
15, that is, solenoid valve is closed.And when solenoid valve obtains electric, under the action of electromagnetic force, the moving armature is moved up and is driven described
Armature sealing is separated with the upper end of the pilot valve mouth 3, that is, the upper end of the pilot valve mouth 3 is in the conductive state.At this point, being given an account of
The low-pressure medium of matter outlet 13 passes sequentially through the chamber lower portion, the valve port channel 15, the pilot valve mouth 3 entrance chamber
Top.Since the internal diameter of the pilot valve mouth 3 is far longer than the internal diameter of the balance port, therefore, transfer above the intermediate diaphragm 41
Form the low pressure close to low-pressure medium.The interior straightway 412 and the connection waveform segment 413 of the intermediate diaphragm 41 are in height
It is moved upwards under the action of pressure medium, opens the valve port channel 15, that is, solenoid valve is opened.
By the way that the intermediate diaphragm 41 is arranged, the reliability of sealing is improved, while reducing and wanting to the machining accuracy of part
It asks, reduces the diameter of pilot valve mouth 3, to improve valve opening ability.
Only express the embodiments of the present invention above, the description thereof is more specific and detailed, but and cannot therefore and
It is interpreted as the limitation to utility model patent range.It should be pointed out that for those of ordinary skill in the art, not
Under the premise of being detached from the utility model design, various modifications and improvements can be made, these belong to the guarantor of the utility model
Protect range.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (6)
1. a kind of diaphragm type electromagnetic valve for refrigeration, which is characterized in that include,
Valve body with medium entrance, the inlet plenum being connected with the medium entrance, media outlet, goes out with the medium
The valve port channel of outlet chamber and the connection inlet plenum and the outlet chamber that mouth is connected, the inlet plenum tool
There is upward opening, the inner face of the inlet plenum is formed with positioning step, and the valve port channel is vertically extending；
Valve deck, is used to cover the upward opening, and the bottom surface of the valve deck is formed with positioning corresponding with the positioning step
Protrusion；
Pilot valve mouth is placed in the top in the valve port channel, and the pilot valve opening's edge is vertically extending, the lower end of the pilot valve mouth with
The valve port channel is connected；
Diaphragm unit, is surrounded on the periphery of the lower end of the pilot valve mouth, and the diaphragm unit is logical with the valve port is placed in
Intermediate diaphragm above road, the upper press cover plate being placed in above the intermediate coat piece and under being placed in below the intermediate diaphragm
The inlet plenum is separated into chamber top and chamber lower portion by gasket, the intermediate diaphragm, and the intermediate diaphragm has outer
The connection waveform segment of straightway, interior straightway and the connection outer straightway and the interior straightway, wherein the outer straightway
It is placed between the positioning step and the positioning protrusion, the interior straightway is used to cover the upper end in the valve port channel, institute
It states and is formed with the connection chamber top and the balance port of the chamber lower portion and the internal diameter of the balance port on connection waveform segment
Less than the internal diameter of the pilot valve mouth；And
Armature component is placed in the top of the pilot valve mouth, and the armature component is for selectively sealing the pilot valve mouth
Upper end.
2. a kind of diaphragm type electromagnetic valve for refrigeration according to claim 1, which is characterized in that the intermediate diaphragm is using special
Fluorine dragon material.
3. a kind of diaphragm type electromagnetic valve for refrigeration according to claim 1 or 2, which is characterized in that the armature component tool
There is moving armature and be fixed on the armature sealing of the moving armature bottom, the armature sealing corresponds to the upper of the pilot valve mouth
End, the direction of action of the moving armature is vertical.
4. a kind of diaphragm type electromagnetic valve for refrigeration according to claim 1 or 2, which is characterized in that the connection waveform segment
Including 1 or more wave crest.
5. a kind of diaphragm type electromagnetic valve for refrigeration according to claim 1 or 2, which is characterized in that the pilot valve mouth is in institute
State diaphragm unit upper/lower terminal and be respectively formed locating flange and lower locating flange, the bottom surface of the upper locating flange with it is described
The top surface phase face contact of upper press cover plate, the top surface of the lower locating flange and the bottom surface phase face contact of the lower seal pad, it is described
Cover clamp, the intermediate diaphragm and the lower seal pad three phase tight fit.
6. a kind of diaphragm type electromagnetic valve for refrigeration according to claim 1 or 2, which is characterized in that also include to divide gas
Disk is surrounded on the periphery in the valve port channel and is placed between the outer straightway and the positioning step, the air distribution disk
For the stainless steel material disk of eyelet, the entirety of the air distribution disk is in interior low outer height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441901.4U CN208778750U (en) | 2018-09-04 | 2018-09-04 | A kind of diaphragm type electromagnetic valve for refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441901.4U CN208778750U (en) | 2018-09-04 | 2018-09-04 | A kind of diaphragm type electromagnetic valve for refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778750U true CN208778750U (en) | 2019-04-23 |
Family
ID=66159777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821441901.4U Active CN208778750U (en) | 2018-09-04 | 2018-09-04 | A kind of diaphragm type electromagnetic valve for refrigeration |
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| Country | Link |
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| CN (1) | CN208778750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486497A (en) * | 2019-08-23 | 2019-11-22 | 安徽天豪制冷设备有限公司 | A kind of diaphragm type electromagnetic valve for refrigeration |
-
2018
- 2018-09-04 CN CN201821441901.4U patent/CN208778750U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486497A (en) * | 2019-08-23 | 2019-11-22 | 安徽天豪制冷设备有限公司 | A kind of diaphragm type electromagnetic valve for refrigeration |
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