CN206618172U - A kind of outer balanced electromagnetic heating power expansion valve - Google Patents
A kind of outer balanced electromagnetic heating power expansion valve Download PDFInfo
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- CN206618172U CN206618172U CN201720327214.9U CN201720327214U CN206618172U CN 206618172 U CN206618172 U CN 206618172U CN 201720327214 U CN201720327214 U CN 201720327214U CN 206618172 U CN206618172 U CN 206618172U
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Abstract
A kind of outer balanced electromagnetic heating power expansion valve, including valve body, unit head, O-ring, top stem casing, thimble, pearl base member, damping folder, spring, adjustment cap, magnetic valve；Project Technical adds magnetic valve on the basis of original heating power expansion valve, can flow to evaporator while power-off from expansion valve to cut off refrigerant using the closure of magnetic valve, protect compressor not by liquid hammer.
Description
Technical field
The utility model, which is related to, is related to field of automobile air conditioner, in particular, is related to a kind of expansion valve.
Background technology
Expansion valve is the important component of formed automobile air-conditioning refrigeration plant, is one of four basic equipments in refrigeration system,
Expansion valve is the liquid refrigerant that the HTHP liquid refrigerant reducing pressure by regulating flow for carrying out condenser is low-temp low-pressure, and according to steaming
Send out the refrigerant flow of device outlet superheat degree regulation feeding evaporator.Expansion valve is by power to the control principle of refrigerant flow
Head experiences the evaporator outlet degree of superheat, and pressure differential drives valve opening caused by the saturation refrigerant in superheated refrigerant and unit head
Opening and closing, so that many refrigerants enter evaporator as far as possible, makes evaporator play maximum efficiency.
The heating power expansion valve of prior art only plays regulation refrigerant pressure and flow, when system is shut down or broken suddenly
When electric, the refrigerant in system can be continued through expansion valve due to pressure difference and flow into evaporator, cause liquid level too high, when turning back on
Liquid hammer can be produced to compressor, system is caused to damage.
The content of the invention
In order to overcome the deficiencies in the prior art, the utility model provides one kind can automatically cut off system in shutdown or power-off
The outer balanced electromagnetic heating power expansion valve for having defencive function to refrigeration system of cryogen flowing.
The utility model solves the technical scheme that its technical problem used：A kind of outer balanced electromagnetic heating power expansion valve,
Including valve body, unit head, O-ring, top stem casing, thimble, pearl base member, damping folder, spring, adjustment cap, magnetic valve；The valve body
It is interior to go out liquid provided with inlet, liquid outlet, air inlet, gas outlet, centre hole, magnetic valve mounting hole, magnetic valve inlet opening, magnetic valve
Hole；The magnetic valve inlet opening connection magnetic valve mounting hole and centre hole, the quantity of magnetic valve inlet opening is two；The electromagnetism
Valve fluid hole connects magnetic valve mounting hole and liquid outlet；It is connected through a screw thread between the valve body and unit head, it is close by O-ring
Envelope；The push rod is set on valve body intermediate power head lower section；The thimble is arranged on valve body intermediate power head lower section and passed through
Top stem casing and centre hole；O-ring, cut-off centre hole and air inlet and gas outlet are provided with below top stem casing between thimble and valve body
Between connection；The pearl base member is arranged on below thimble；Damping folder and spring are provided with below the pearl base member, with tune
Save cap and fix support；It is connected through a screw thread, is sealed by O-ring between the adjustment cap and valve body；Under the unit head includes
Lid, upper lid, diaphragm, top plate steel ball, argon arc welding rotating welding fixing seal is passed through between the lower cover, diaphragm, upper lid three；Film
Temperature sensing medium is filled between piece and upper lid, by upper lid and steel ball welded seal, prevents temperature sensing medium to be lost in；Its feature exists
In：The magnetic valve is threaded on the magnetic valve mounting hole of valve body, is sealed between valve body and magnetic valve by O-ring；Institute
Magnetic valve is stated including valve element, spring, magnet coil, magnet plunger, electromagnetism valve base is provided with the valve body, electromagnetism valve base with
Valve element partners sealing pair；Magnet coil is powered, and valve element departs from electromagnetism valve base, and inlet passes through centre hole, magnetic valve
Inlet opening, magnetic valve mounting hole, magnetic valve fluid hole are connected with liquid outlet；Magnet coil is powered off, under spring force,
Valve element is contacted with electromagnetism valve base, and passage is cut off between inlet and liquid outlet.
Compared with prior art, the utility model has the advantage of：Electricity is added on the basis of original heating power expansion valve
Magnet valve, can flow to evaporator from expansion valve to cut off refrigerant using the closure of magnetic valve, protects pressure while power-off
Contracting machine is not by liquid hammer.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the structural representation of unit head described in the utility model.
Fig. 4 is the structural representation of valve body described in the utility model.
Fig. 5 is Fig. 4 left view.
Fig. 6 is Fig. 5 C-C direction views.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
A kind of outer balanced electromagnetic heating power expansion valve, including valve body 1, unit head 2, O-ring 3, top stem casing 4, top as described in Figure
Pin 5, O-ring 6, pearl base member 7, damping folder 8, spring 9, O-ring 10, adjustment cap 11, magnetic valve 13；It is provided with the valve body 1
Inlet 101, liquid outlet 102, air inlet 103, gas outlet 104, centre hole 105, magnetic valve mounting hole 106, magnetic valve feed liquor
Hole 108, magnetic valve fluid hole 107；The connection magnetic valve of magnetic valve inlet opening 108 mounting hole 106 and centre hole 105, electromagnetism
The quantity of valve inlet opening 108 is two；The connection magnetic valve of magnetic valve fluid hole 107 mounting hole 106 and liquid outlet 102；Institute
State and be connected through a screw thread between valve body 1 and unit head 2, sealed by O-ring 3；The top stem casing 4 is arranged on dynamic in the middle of valve body 1
First 2 lower section of power；The thimble 5 is arranged on first 2 lower section of the intermediate power of valve body 1 and passes through top stem casing 4 and centre hole 105；Top stem casing 4
O-ring 6, the company between cut-off centre hole 105 and air inlet 103 and gas outlet 104 are provided between lower section thimble 5 and valve body 1
It is logical；The pearl base member 7 is arranged on the lower section of thimble 5；The lower section of pearl base member 7 is provided with damping folder 8 and spring 9, with regulation
Cap 11 fixes support；It is connected through a screw thread, is sealed by O-ring 10 between the adjustment cap 11 and valve body 1；The unit head 2
Including lower cover 21, upper lid 22, diaphragm 23, top plate 24, steel ball 25, argon is passed through between the lower cover 21, diaphragm 23, the three of upper lid 22
Arc-welding rotating welding fixing seal；Temperature sensing medium is filled between diaphragm 23 and upper lid 22, is welded by upper lid 22 and steel ball 25
Sealing, prevents temperature sensing medium to be lost in；It is characterized in that：The magnetic valve 13 is threaded in the magnetic valve mounting hole 106 of valve body 1
On, sealed between valve body 1 and magnetic valve 13 by O-ring 12；The magnetic valve 13 includes valve element 131, spring 132, electromagnetic wire
Electromagnetism valve base 109 is provided with circle 133, magnet plunger 134, the valve body 1, electromagnetism valve base 109 partners with valve element 131
Sealing pair；Magnet coil 133 is powered, and valve element 131 departs from electromagnetism valve base 109, and inlet 101 passes through centre hole 105, electromagnetism
Valve inlet opening 108, magnetic valve mounting hole 106, magnetic valve fluid hole 107 are connected with liquid outlet 102；Magnet coil 133 is powered off,
Under spring force, valve element 131 is contacted with electromagnetism valve base 109, and passage is cut off between inlet 101 and liquid outlet 102.
Compared with prior art, the utility model has the advantage of：Electricity is added on the basis of original heating power expansion valve
Magnet valve, can flow to evaporator from expansion valve to cut off refrigerant using the closure of magnetic valve, protects pressure while power-off
Contracting machine is not by liquid hammer.
Claims (1)
1. a kind of outer balanced electromagnetic heating power expansion valve, including valve body, unit head, O-ring, top stem casing, thimble, pearl base member, resistance
Buddhist nun's folder, spring, adjustment cap, magnetic valve；Inlet, liquid outlet, air inlet, gas outlet, centre hole, electromagnetism are provided with the valve body
Valve mounting hole, magnetic valve inlet opening, magnetic valve fluid hole；The magnetic valve inlet opening connection magnetic valve mounting hole and centre hole,
The quantity of magnetic valve inlet opening is two；The magnetic valve fluid hole connection magnetic valve mounting hole and liquid outlet；The valve body with
It is connected through a screw thread, is sealed by O-ring between unit head；The push rod is set on valve body intermediate power head lower section；It is described
Thimble is arranged on valve body intermediate power head lower section and passes through top stem casing and centre hole；Set below top stem casing between thimble and valve body
There are O-ring, the connection between cut-off centre hole and air inlet and gas outlet；The pearl base member is arranged on below thimble；It is described
Damping folder and spring are provided with below pearl base member, support is fixed with adjustment cap；Pass through screw thread between the adjustment cap and valve body
Connection, is sealed by O-ring；The unit head includes lower cover, upper lid, diaphragm, top plate steel ball, the lower cover, diaphragm, upper lid three
Pass through argon arc welding rotating welding fixing seal between person；Temperature sensing medium is filled between diaphragm and upper lid, passes through upper lid and steel ball
Welded seal, prevents temperature sensing medium to be lost in；It is characterized in that：The magnetic valve is threaded in the magnetic valve mounting hole of valve body
On, sealed between valve body and magnetic valve by O-ring；The magnetic valve includes valve element, spring, magnet coil, magnet plunger, described
It is provided with electromagnetism valve base on valve body, electromagnetism valve base and valve element partner sealing pair；Magnet coil is powered, valve element and electromagnetism
Valve base departs from, and inlet passes through centre hole, magnetic valve inlet opening, magnetic valve mounting hole, magnetic valve fluid hole and liquid outlet phase
Connection；Magnet coil is powered off, and under spring force, valve element is contacted with electromagnetism valve base, is led between inlet and liquid outlet
Road is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327214.9U CN206618172U (en) | 2017-03-30 | 2017-03-30 | A kind of outer balanced electromagnetic heating power expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327214.9U CN206618172U (en) | 2017-03-30 | 2017-03-30 | A kind of outer balanced electromagnetic heating power expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206618172U true CN206618172U (en) | 2017-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720327214.9U Active CN206618172U (en) | 2017-03-30 | 2017-03-30 | A kind of outer balanced electromagnetic heating power expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206618172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-03-30 CN CN201720327214.9U patent/CN206618172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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