CN110243112A - A kind of heating power expansion valve with cutoff function - Google Patents
A kind of heating power expansion valve with cutoff function Download PDFInfo
- Publication number
- CN110243112A CN110243112A CN201910505959.3A CN201910505959A CN110243112A CN 110243112 A CN110243112 A CN 110243112A CN 201910505959 A CN201910505959 A CN 201910505959A CN 110243112 A CN110243112 A CN 110243112A
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- China
- Prior art keywords
- interface
- valve
- heating power
- additionally provided
- shut
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of heating power expansion valves with cutoff function；Including valve body, bellows, push rod；Bellows is set to body top, and valve body is equipped with first interface, second interface, third interface, the 4th interface；The axis of first interface is vertical with the axis of the 4th interface, and the axis of second interface is vertical with the axis of third interface, and first interface and the 4th interface connection；The valve body side opposite with third interface is additionally provided with the 5th interface；Shut-off valve is fixed on 5th interface；Shut-off valve includes valve rod and electromagnetic coil；Wherein, electromagnetic coil is embedded on valve rod；The end of valve rod is connect with the 5th interface spiral, and groove is additionally provided in it；Spool, spring, thimble are equipped in groove；The inventive structure is compact, layout is simple, enormously simplifies the arrangement of system pipeline, eliminates the flange and sealing ring bring cost for connecting needs between original two valves；Two tie points originally with shut-off valve junction are eliminated, the disclosure risk of whole system is reduced.
Description
Technical field
The invention belongs to field of automobile air conditioner, more particularly, to a kind of heating power expansion valve field.
Background technique
Expansion valve is also referred to as throttle valve, is the main component of formed automobile air-conditioning refrigeration plant, is mounted at evaporator inlet,
It is the high pressure of automobile air conditioning refrigerating system and the separation of low pressure；Its function is the high-pressure liquid refrigeration from liquid storage dryer
Agent expenditure and pressure, regulation and control enter the amount of liquid refrigerant in evaporator, are allowed to adapt to the variation of cooling load, while can
Prevent compressor from liquid hit phenomenon and evaporator outlet steam overheat extremely occurs；But heating power expansion valve cannot act as shut-off valve,
In order to avoid refrigerant continues to flow to low-pressure side after compressor stalls, cause low pressure liquid level excessively high, starting is negative when next time is switched on
Lotus is big, it is difficult to after starting or starting the case where liquid hammer compressor；Therefore, all to be required using the refrigeration system of heating power expansion valve
Installation solenoid valve does shut-off valve；In general, individually shut-off valve is placed between expansion valve and evaporator, but structure is complex,
Interface is relatively more, is easy to happen leakage, is also not easy to be arranged in the engine bin of narrow space, the flange largely used with
Sealing ring cost is also relatively high.
Summary of the invention
To solve the above-mentioned problems, the present invention through the following technical solutions to achieve the above objectives:
A kind of heating power expansion valve with cutoff function, including valve body, bellows, push rod；Bellows is on body top, valve body
Equipped with first interface, second interface, third interface, the 4th interface；Wherein, first interface is connect with evaporator outlet, and second connects
Mouth is connect with evaporator；Third interface is connect with compressor inlet；4th interface is connect with condensator outlet；First interface
Axis it is vertical with the axis of the 4th interface, and the axis of second interface is vertical with the axis of third interface, and first interface with
4th interface connection；Valve body, the side opposite with third interface are additionally provided with the 5th interface；Cut-off is fixed on 5th interface
Valve；Shut-off valve includes valve rod and electromagnetic coil；Wherein, electromagnetic coil is embedded on the valve rod；The end of valve rod connects with the 5th
Mouth spiral connection, and groove is additionally provided in it；Spool, spring, thimble are equipped in groove；The front end of spool and the fixed company of thimble
It connects, and its rear end is fixedly connected with spring；Inlet and liquid outlet are additionally provided on thimble；Inlet connects with the 5th interface and third
Mouth connection, liquid outlet and the 5th interface and second interface connection；When electromagnetic coil is powered, backward, refrigerant passes through for spool and thimble
Centre hole, inlet opening, mounting hole, fluid hole are connected with second interface；When electromagnetic coil powers off, under spring force,
Forward, channel is cut off thimble between inlet and liquid outlet.
As a further optimization solution of the present invention, described first, second, third, fourth and the 5th interface be equipped with
Sealing ring.
As a further optimization solution of the present invention, the sealing ring is teflin ring；Polytetrafluoroethylene (PTFE) is close
Seal have creep properties, can make it is seamless between sealing ring and interface, and for line contact, so that foul is not likely to enter sealing
Circle.
As a further optimization solution of the present invention, the first interface and third interface are additionally provided with strainer；The filter
Net is in infundibulate, and strainer frame is embedded between the sealing ring and valve body；When avoiding compressor scuffing of cylinder bore, the iron filings of abrasion
It enters in air-conditioning system, expansion valve is be easy to cause to block.
As a further optimization solution of the present invention, the quantity of the inlet is set as two.
As a further optimization solution of the present invention, the valve body is additionally provided with caulking groove, and described section close to the 5th interface
Protrusion is additionally provided on only valve, with the contact surface of valve body, and protrusion is embedded in caulking groove；Prevent shut-off valve from rotating.
As a further optimization solution of the present invention, the valve rod, far from spool end on, be equipped with annular groove；The ring
It is embedded with buckle on slot, is additionally provided with fixed block between the buckle and shut-off valve；By the cooperation of annular groove and buckle by shut-off valve
Firmly it is fixed on valve rod.
As a further optimization solution of the present invention, fixed block is additionally provided between the buckle and shut-off valve.
The beneficial effects of the present invention are:
1) realize that valve itself cost that said function needs reduces；Eliminate the cooperation that needs are connected between original two valves
Flange and sealing ring bring cost；
2) two tie points originally with shut-off valve junction are eliminated, two leakages for having disclosure risk are directly eliminated
Point reduces the disclosure risk of whole system；
3) compact-sized, layout simply, enormously simplifies the arrangement of system pipeline；
4) evaporator that enters for preventing liquid refrigerant excessive causes booting next time Wet Stroke of Compressor.
Detailed description of the invention
Fig. 1 is the heating power expansion valve structural schematic diagram of the invention with cutoff function；
Fig. 2 is the right side view of heating power expansion valve of the invention；
Fig. 3 is the diagrammatic cross-section of heating power expansion valve and shut-off valve in the present invention；
Fig. 4 is the partial structure diagram of shut-off valve in the present invention；
Fig. 5 is the structural schematic diagram of shut-off valve in the present invention；
Fig. 6 is the schematic diagram for removing the expansion valve after shut-off valve in the present invention；
Fig. 7 is the structural schematic diagram of filter screen in the present invention；
In figure: 1, valve body；11, first interface；12, second interface；13, third interface；14, the 4th interface；15, it the 5th connects
Mouthful；16, caulking groove；2, bellows；3, push rod；4, shut-off valve；41, valve rod；411, groove；412, annular groove；42, electromagnetic coil；43, valve
Core；44, spring；45, thimble；451, inlet；452, liquid outlet；46, raised；5, sealing ring；6, strainer；7, it buckles；8, solid
Determine block.
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below
Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field
Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
Embodiment one:
A kind of heating power expansion valve with cutoff function as shown in Figures 1 to 7, including valve body 1, bellows 2, push rod 3；It is described
Bellows 2 is set to 1 top of valve body, and the valve body 1 is equipped with first interface 11, second interface 12, third interface 13, the 4th interface
14；Wherein, first interface 11 is connect with evaporator outlet, and second interface 12 is connect with evaporator；Third interface 13 and pressure
Contracting machine import connection；The axis of the first interface 11 is vertical with the axis of the 4th interface 14, and the axis of the second interface 12
Line is vertical with the axis of third interface 13, and 14 connection of the first interface 11 and the 4th interface；The valve body 1, connects with third
13 opposite sides of mouth, are additionally provided with the 5th interface 15；First, second, third, fourth interface the 11,12,13,14 and the 5th
Teflin ring 5 is equipped at interface 15；Strainer 6 is additionally provided at first interface 11 and third interface 13；The filter
Net 6 is in infundibulate, and the side of strainer 6 is embedded between the sealing ring 5 and valve body 1；It is fixed on 5th interface 15
Shut-off valve 4；The shut-off valve 4 includes valve rod 41, electromagnetic coil 42；Wherein, the electromagnetic coil 42 is embedded at the valve rod 41
On；The end of the valve rod 41, connect with 15 spiral of the 5th interface, and groove 411 is additionally provided in it；It is set in the groove 411
There are spool 43, spring 44, thimble 445；The spool 43, front end are fixedly connected with thimble 45, and its rear end and spring 44 are fixed
Connection；Inlet 451 and liquid outlet 452 are additionally provided on the thimble 45；Wherein, the inlet 451 and the 5th interface 15 and
13 connection of third interface, 12 connection of the liquid outlet 452 and the 5th interface 15 and second interface；The quantity of inlet 451 is set as
Two；The valve body 1 is additionally provided with caulking groove 16, and the shut-off valve 4 at the 5th interface 15, and also sets on the contact surface of valve body 1
There is protrusion 46, and protrusion 46 is embedded in caulking groove 411；The valve rod 41, far from spool 43 end on, be equipped with annular groove 412；Institute
It states and is embedded with buckle 7 on annular groove 412；Fixed block 8 is additionally provided between the buckle 7 and shut-off valve 4；When electromagnetic coil 42 be powered,
Backward, refrigerant is connected by centre hole, inlet 451, mounting hole, liquid outlet 452 with second interface 12 for spool 43 and thimble 45
It is logical；When electromagnetic coil 42 powers off, under spring force, thimble forward, cut between inlet 451 and liquid outlet 452 by channel
It is disconnected.
Working principle；
Compressor will be transported to condenser cooling liquid first after refrigerant compression, again into people H after liquid storage dryer
Shape expansion valve first carries out expenditure and pressure, then into people's evaporator evaporation endothermic；Refrigerant flashes to after gas again into people's H-shaped
Expansion valve returns to compressor recycling after coming out in valve；When the temperature of evaporator is too low, after temperature detector senses, constant temperature
Device cuts off the electromagnetic coil circuit of clutch, and compressor is out of service；After temperature is got higher, turn on automatically clutch is electric again for thermostat
Road, compressor bring into operation again；
Solenoid valve must be synchronous with compressor, exactly in order to when compressor stalls while cut off the conveying of refrigerant, pressure
Refrigerant is supplied when contracting machine operates simultaneously；It avoids the refrigerant after compressor stalls from continuing to flow to low-pressure side, causes low pressure liquid level
Excessively high, starting load is big when next time is switched on, it is difficult to liquid hammer compressor after starting or starting.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (8)
1. a kind of heating power expansion valve with cutoff function, including valve body (1), bellows (2), push rod (3)；The bellows (2) is set to
At the top of valve body (1), the valve body (1) is equipped with first interface (11), second interface (12), third interface (13), the 4th interface
(14)；It is characterized by: the axis of the first interface (11) is vertical with the axis of the 4th interface (14), and the second interface
(12) axis is vertical with the axis of third interface (13), and the first interface (11) and the 4th interface (14) connection；It is described
Valve body (1), the opposite side with third interface (13), is additionally provided with the 5th interface (15)；Fixation is set on 5th interface (15)
There are shut-off valve (4)；The shut-off valve (4) includes valve rod (41), electromagnetic coil (42)；Wherein, the electromagnetic coil (42) is embedded
In on the valve rod (41)；The end of the valve rod (41) connect with the 5th interface (15) spiral, and is additionally provided with groove in it
(411)；Spool (43), spring (44), thimble (445) are equipped in the groove (411)；The spool (43), front end and thimble
(45) it is fixedly connected, and its rear end is fixedly connected with spring (44)；Inlet (451) and out liquid are additionally provided on the thimble (45)
Mouth (452)；Wherein, the inlet (451) and the 5th interface (15) and third interface (13) connection, the liquid outlet (452)
With the 5th interface (15) and second interface (12) connection.
2. a kind of heating power expansion valve with cutoff function according to claim 1, it is characterised in that: described first, second,
Third, the 4th interface (11,12,13,14) and the 5th interface (15) at be equipped with sealing ring (5).
3. a kind of heating power expansion valve with cutoff function according to claim 2, it is characterised in that: the sealing ring (5)
For teflin ring.
4. a kind of heating power expansion valve with cutoff function according to claim 2 or 3, it is characterised in that: described first connects
Strainer (6) are additionally provided at mouth (11) and third interface (13)；The strainer (6) is in infundibulate, and the side of strainer (6) is embedded at
Between the sealing ring (5) and valve body (1).
5. a kind of heating power expansion valve with cutoff function according to claim 1, it is characterised in that: the inlet
(451) quantity is set as two.
6. a kind of heating power expansion valve with cutoff function according to claim 1, it is characterised in that: the valve body (1) is leaned on
It is additionally provided with caulking groove (16) at nearly 5th interface (15), and the shut-off valve (4), and is additionally provided with protrusion on the contact surface of valve body (1)
(46), and raised (46) are embedded in caulking groove (411).
7. a kind of heating power expansion valve with cutoff function according to claim 1, it is characterised in that: the valve rod (41),
On end far from spool (43), it is equipped with annular groove (412)；Buckle (7) are embedded on the annular groove (412).
8. a kind of heating power expansion valve with cutoff function according to claim 7, it is characterised in that: the buckle (7) with
Fixed block (8) are additionally provided between shut-off valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505959.3A CN110243112A (en) | 2019-06-12 | 2019-06-12 | A kind of heating power expansion valve with cutoff function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505959.3A CN110243112A (en) | 2019-06-12 | 2019-06-12 | A kind of heating power expansion valve with cutoff function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110243112A true CN110243112A (en) | 2019-09-17 |
Family
ID=67886712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910505959.3A Pending CN110243112A (en) | 2019-06-12 | 2019-06-12 | A kind of heating power expansion valve with cutoff function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110243112A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69811838T2 (en) * | 1997-12-22 | 2003-11-06 | Denso Corp | Relief valve combined with an electromagnetic valve |
| CN1525121A (en) * | 2003-02-24 | 2004-09-01 | յ���ʽ���� | Expansion valve |
| CN202834112U (en) * | 2012-10-31 | 2013-03-27 | 上虞市职业教育中心 | Secondary throttling two-way thermostatic expansion valve for vehicle with filtering structure |
| CN206817827U (en) * | 2017-03-29 | 2017-12-29 | 宁波松鹰汽车部件有限公司 | Inner equilibrium electromagnetism heating power expansion valve |
| CN108954991A (en) * | 2018-09-09 | 2018-12-07 | 宁波松鹰汽车部件有限公司 | A kind of electromagnetism heating power expansion valve |
-
2019
- 2019-06-12 CN CN201910505959.3A patent/CN110243112A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69811838T2 (en) * | 1997-12-22 | 2003-11-06 | Denso Corp | Relief valve combined with an electromagnetic valve |
| CN1525121A (en) * | 2003-02-24 | 2004-09-01 | յ���ʽ���� | Expansion valve |
| CN202834112U (en) * | 2012-10-31 | 2013-03-27 | 上虞市职业教育中心 | Secondary throttling two-way thermostatic expansion valve for vehicle with filtering structure |
| CN206817827U (en) * | 2017-03-29 | 2017-12-29 | 宁波松鹰汽车部件有限公司 | Inner equilibrium electromagnetism heating power expansion valve |
| CN108954991A (en) * | 2018-09-09 | 2018-12-07 | 宁波松鹰汽车部件有限公司 | A kind of electromagnetism heating power expansion valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190917 |