CN105041630B - Electromagnetic control valve for variable displacement compressor - Google Patents
Electromagnetic control valve for variable displacement compressor Download PDFInfo
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- CN105041630B CN105041630B CN201510395867.6A CN201510395867A CN105041630B CN 105041630 B CN105041630 B CN 105041630B CN 201510395867 A CN201510395867 A CN 201510395867A CN 105041630 B CN105041630 B CN 105041630B
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Abstract
An electromagnetic control valve for a variable displacement compressor is mainly composed of valve parts, electromagnet parts and pressure sensing parts which are arranged on the same axis. The electromagnet parts are arranged between the valve parts and the pressure sensing parts, and each valve part comprises a valve body and a valve element arranged in the valve body, wherein the opening end of the lower end of the valve body is connected with a valve element support plate in an interference fit mode, the lower end of the valve element is contained in a middle through hole formed in the valve element support plate, and an inner cavity of the valve body is provided with multiple through holes which are used for communicating the exhaust pressure, the suction pressure and the crank pressure; the electromagnet parts can generate an electromagnetic force used for driving the adjacent valve element arranged over the electromagnet parts to move after being powered on; the pressure sensing parts can also generate a force used for driving the valve element to move due to the change of the suction pressure. The electromagnetic control valve for the variable displacement compressor has the advantages of being reasonable in structure, capable of improving the control precision and being used for the variable displacement compressor without a clutch, beneficial for the lightweight design of a car and the like.
Description
Technical field
The present invention relates to a kind of be applied to the solenoid electric valve controlling variable compressor discharge capacity.
Background technology
Automobile air conditioning refrigerating system mainly include to circulate in automobile air-conditioning refrigeration in flowing coolant and become height
The gas coolant of warm high pressure and discharge compressor, make condenser that this gas coolant condenses, by making it, low to become low temperature low
Pressure coolant expansion valve and and in-car air is evaporated freeze vaporizer, in vaporizer evaporate after coolant again
Return to compressor and form kind of refrigeration cycle.
Automobile air conditioner compressor is the heart of automobile air conditioning refrigerating system, and it, by the direct-connected driving of electromotor, therefore can not be controlled
Compressor rotary speed processed.In order to provide one not affected to obtain suitable cooling capacity by engine speed, it is proposed that adopting
With the variable displacement compressor of compression volume can be changed.
The swash plate that this compressor mainly by reciprocating piston, drives piston movement and a set of linkwork form.Logical
Cross the stroke to change piston for the inclination angle changing swash plate, thus adjust compressor output discharge.When crankcase pressure pc increases, right
The moment that twisted branch point produces makes swashplate angle reduce, and compressor minimum capacity works；When pc pressure reduces, swashplate angle increases
Greatly, compressor maximum capacity work.
When generally variable compressor works, its discharge pressure pd numerical value is larger and can become with the change of operating mode
Change when therefore designing valve member because eliminating the impact to valve element for pressure at expulsion pd as far as possible.Electromagnet component, it can produce after powered up
The electromagnetic force of a raw driving valve core movement.Likewise, pressure-sensitive part also can produce a drive because of the change of pressure of inspiration(Pi) ps
The power of movable valve plug motion.Part variable compressor eliminates electromagnetic clutch, for such variable compressor, no matter vapour
Car air conditioning system is that to open be to close, and variable compressor operates with electromotor always.Therefore when automotive air-conditioning system is in pass
During closed state, solenoid electric valve must assure that now variable compressor can be worked with minimum injection rate.
Content of the invention
It is an object of the invention to overcoming the shortcomings of that prior art exists, and providing a kind of rational in infrastructure, improving and controlling
Precision, can be used for the variable compressor without clutch, not only contributes to reduce electromagnetic clutch adhesive or departs to starting
The impact of machine work, is also beneficial to the variable compressor solenoid electric valve of automotive light weight technology design.
The purpose of the present invention to complete by following technical solution, a kind of variable compressor solenoid electric valve,
It is mainly made up of the valve member arranged on the same axis, electromagnet component and pressure-sensitive part three part, wherein electric magnet portion
Part is arranged between valve member and pressure-sensitive part, and described valve member includes valve body, the valve element in valve body, this valve body
Underpart opening end valve element gripper shoe is connected with by interference fit, the bottom of described valve element is contained in valve element gripper shoe
In intermediate throughholes, described body cavity is provided with some through holes, and this some through hole is used for connecting pressure at expulsion, pressure of inspiration(Pi)
And swash plate cavity pressure；Described electromagnetic component can produce an electricity driving the adjacently positioned valve core movement in top after powered up
Magnetic force；Described pressure-sensitive part is as the change of pressure of inspiration(Pi) produces the power of a driving valve core movement；
Described valve element is formed by the big end on top and the small end disjunctor of bottom, and the big end of its middle and upper part is contained in valve body
In chamber, the end of small end is contained in valve element gripper shoe intermediate throughholes；Valve element gripper shoe is provided with an inclined-plane, this inclined-plane and valve body
On a right-angle side contact；Described valve element upper and lower ends are each provided with configuring the seal groove of an o type circle, on described valve element
It is mounted with one in the body cavity of side and presses pressure spring in valve element, be provided with one above this pressure spring and revolved by screw thread
It is connected on valve body and spinning in and out can adjust the adjustment seat of described pressure spring pressure.
Described valve body lower end is connected with a connecting seat by interference fit, and makes valve member and electromagnetism by this connecting seat
Ferrum part links together；Described electromagnetic valve components produce the coil block of surrounding magnetic field, this coil group after including an energising
Part is arranged in coil case, also includes magnetic conductor, static iron core and dynamic iron core in this coil case, described coil
The upper end of shell is fixedly connected described connecting seat, and the upper end of a magnetism-isolating loop and the bottom of connecting seat are existed by laser welding
Together, static iron core in the middle of lower section for the laser welding is passed through in lower end, and dynamic iron core is placed in the top of static iron core and is housed inside connection
In the central duct of seat and magnetism-isolating loop, and can be along the direction axially-movable of top valve element gripper shoe；
It is provided with the working clearance producing electromagnetic force between described static iron core and dynamic iron core, be provided with this working clearance
One is used for controlling the spacing ring of working clearance minimum widith；It is machined with one in static iron core inner hollow cavity to be used for accommodating c type gear
The groove of circle, the big end of a volute spring is mutually butted on described c type back-up ring, and its small end is by being pressed on drive link, and passes through drive link
Transmission tube that top connects connects the dynamic iron core of top, and described volute spring spring force upwards is in the case of being not powered on,
Dynamic iron core is mutually butted on valve element gripper shoe all the time and forces valve element to be maintained at set upper extreme position so that valve port is maintained at institute
The maximum opening setting；It is butted under described drive link on the spring base of bottom pressure-sensitive part, described pressure-sensitive part includes a peace
It is contained in the diaphragm capsule housing of bottom in coil case, the upper end of this diaphragm capsule housing is linked together with diaphragm and static iron core, bellows
It is equipped with pressure-sensitive spring, the lower end of this pressure-sensitive spring is pressed on and is rotatably connected in duct lower end in the middle of diaphragm capsule housing in the middle duct of shell
Pressure regulating seat or by the sleeve-shaped diaphragm capsule housing bottom surface of drawing and forming, upper end is pressed on the spring base of an adjacent top diaphragm
On.
As preferred: be machined with two holes intersecting connection inside described dynamic iron core, be also machined with friendship inside drive link
Two holes of fork connection, above-mentioned hole and transmission tube together form one for pressure of inspiration(Pi) is introduced to the gas at pressure-sensitive part
Body passage；
Described pressure-sensitive spring middle setting has one for the guide post that guide springs seat axially moves, this guide post
One end be contained in spring base internal holes, the other end is contained in pressure regulating seat internal holes.
The invention has the advantages that
One is that valve element two ends are respectively accommodated in valve body and valve element gripper shoe internal holes it is ensured that stablizing of valve core movement is suitable
Freely；
Two are a cancellation the impact for valve element for pressure at expulsion pd, improve the control accuracy of solenoid electric valve；
Three be o type circle using first internal leakage can be reduced it is ensured that variable compressor has a higher volumetric efficiency, two
It is the damping that can increase valve element, reduce the probability that valve element occurs resonance abnormal sound；
Four is the variable compressor that the present invention can be used for without clutch, not only contributes to reduce electromagnetic clutch adhesive
Or depart from the impact that electromotor is worked, it is also beneficial to the light-weight design of automobile.
Brief description
Fig. 1 is the structural profile schematic diagram of solenoid electric valve of the present invention.
Fig. 2 is the structural representation of valve member of the present invention.
Fig. 3 is enlarged diagram at sealing shown in Fig. 2.
Fig. 4 is valve member internal gas flow direction schematic diagram of the present invention.
Fig. 5 is the schematic diagram of electromagnet component internal gas passageways of the present invention.
Fig. 6 is the structural representation of pressure-sensitive part of the present invention.
Fig. 7 is the structural representation of another kind pressure-sensitive part of the present invention.
Specific embodiment:
In order that those skilled in the art are better understood from the solution of the present invention, below in conjunction with the accompanying drawings with specific embodiment to this
Invention is described in further detail.
With reference to shown in Fig. 1, a kind of variable compressor solenoid electric valve of the present invention, it is mainly same by being arranged in
Valve member on one axis, electromagnet component and pressure-sensitive part three part composition, wherein electromagnet component is arranged on valve member
And pressure-sensitive part between, described valve member 1 includes valve body 16, the valve element 15 in valve body 16, the lower end of this valve body 16
Portion's opening is connected with valve element gripper shoe 17 by interference fit, and the bottom of described valve element 15 is contained in valve element gripper shoe 17
In intermediate throughholes, described valve body 16 inner chamber is provided with some through holes 18, and this some through hole 18 is used for connecting pressure at expulsion pd, suction
Atmospheric pressure ps and swash plate chamber pressure p c；
Described electromagnetic component 2 can produce an electromagnetic force driving adjacently positioned valve element 15 motion in top after powered up；
Described pressure-sensitive part 3 is as the change of pressure of inspiration(Pi) ps produces the power driving valve element 15 motion.
The preferred embodiment of the invention is: described valve element 15 is formed by the big end on top and the small end disjunctor of bottom, its
The big end of middle and upper part is contained in valve body 16 inner chamber, and the end of small end is contained in valve element gripper shoe 17 intermediate throughholes；Valve element props up
Fagging 17 is provided with an inclined-plane, and this inclined-plane is contacted with the right-angle side on valve body 16.
Described valve element 15 upper and lower ends are each provided with configuring the seal groove of an o type circle 13, the valve of described valve element 15 top
It is mounted with one in intracoelomic cavity and presses pressure spring 12 in valve element 15, be provided with one above this pressure spring 12 and revolved by screw thread
It is connected on valve body 16 and spinning in and out can adjust the adjustment seat 11 of described pressure spring 12 pressure.
The preferred embodiment of the invention is: described valve body 16 lower end is connected with a connecting seat 21 by interference fit, and
Valve member 1 is made to link together with electromagnet component 2 by this connecting seat 21；After described electromagnetic valve components 2 include an energising
Produce the coil block 20 of surrounding magnetic field, this coil block 20 is arranged in coil case 25, in this coil case 25 also
Include magnetic conductor 26, static iron core 23 and dynamic iron core 24, the upper end of described coil case 25 is fixedly connected described company
Joint chair 21, the upper end of a magnetism-isolating loop 22 and the bottom of connecting seat 21 are passed through to be laser welded, lower end pass through laser welding in
Static iron core 23 in the middle of lower section, dynamic iron core 24 is placed in the top of static iron core 23 and is housed inside in connecting seat 21 and magnetism-isolating loop 22
In heart duct, and can be along the direction axially-movable of top valve element gripper shoe 17.
It is provided with the working clearance 291 producing electromagnetic force, this working clearance between described static iron core 23 and dynamic iron core 24
It is provided with one for controlling the spacing ring 292 of working clearance minimum widith in 291；
It is machined with one for accommodating the groove of c type back-up ring 282 in static iron core 23 inner hollow cavity, a volute spring 281
Big end is mutually butted on described c type back-up ring 282, and its small end is by being pressed on drive link 272, and is connected by drive link 272 top
Transmission tube 271 connects the dynamic iron core 24 of top, and described volute spring 281 spring force f3 upwards is in the case of being not powered on,
Dynamic iron core 24 is mutually butted on valve element gripper shoe 17 all the time and forces valve element 15 to be maintained at set upper extreme position so that valve port 19
It is maintained at set maximum opening.
Fig. 6, shown in 7, it is butted under described drive link 272 on the spring base of bottom pressure-sensitive part 3, described pressure-sensitive part bag
Include a diaphragm capsule housing 35 being arranged on bottom in coil case 25, the upper end of this diaphragm capsule housing 35 and diaphragm 31 and static iron core 23
Link together, be equipped with pressure-sensitive spring 36 in the middle duct of diaphragm capsule housing 35, the lower end of this pressure-sensitive spring 36 is pressed on and spins
In the pressure regulating seat 34 of diaphragm capsule housing 35 middle duct lower end or by sleeve-shaped diaphragm capsule housing 35 bottom surface of drawing and forming, upper end
It is pressed on the spring base 32 of an adjacent top diaphragm 31.
It is machined with two holes intersecting connection inside described dynamic iron core 24, be also machined with intersection inside drive link 272 even
Two logical holes, above-mentioned hole and transmission tube 271 together form one for being introduced to pressure of inspiration(Pi) ps at pressure-sensitive part 3
Gas passage；
Described pressure-sensitive spring 36 middle setting has one for the guide post 33 that guide springs seat 32 axially moves, should
One end of guide post 33 is contained in spring base 32 internal holes, and the other end is contained in pressure regulating seat 34 internal holes.
Embodiment: Fig. 1 is the structural representation of solenoid electric valve of the present invention.Solenoid electric valve is mainly same by being arranged in
Valve member 1 on one axis, electromagnet component 2 and pressure-sensitive part 3 three part composition.If valve member 1 is usually provided with dry gas
Passage is used for introducing pressure at expulsion pd, pressure of inspiration(Pi) ps and swash plate chamber pressure p c.By control valve element 15 axially-movable Lai
Control the size 19 of the gas passage between pressure at expulsion pd and swash plate chamber pressure p c thus realizing the tune to swash plate chamber pressure p c
Section.Electromagnet component 2 can produce an electromagnetic force driving valve element 15 motion after powered up.Likewise, pressure-sensitive part 3 also can be because
Change for pressure of inspiration(Pi) ps produces the power driving valve element 15 motion.
Fig. 2,3 be valve member 1 of the present invention structural representation.Wherein valve body 16 and valve element gripper shoe 17 pass through interference
Cooperate together, in order to improve the reliability of both connections, if can press in valve body 16 lower surface doing.Valve element supports
Plate 17 is provided with an inclined-plane, this inclined-plane is contacted with the right-angle side on valve body 16, so can improve and seal between the two
Reliability.
Valve element 15 is held greatly and is contained in valve body 16 internal holes, and small end is contained in valve element gripper shoe 17 internal holes, so i.e.
Make the comparatively short of valve element 15 design it is also ensured that valve element 15 obtains reasonable supporting in motion.Shorter valve element 15 can
So that valve member 1 more compact structure, take up room less, also reduce valve element 15 itself and matched valve body 16 simultaneously
Technology difficulty.
O type circle 13 and o type circle 14 are arranged in the seal groove at valve element 15 two ends, and o type circle 13 is used for intercepting first chamber
Gas flowing between pc and second chamber pd, o type circle 14 is used for intercepting the gas between the 3rd chamber pc and the 4th chamber ps
Flowing.Its advantage one is to can ensure that variable compressor obtains higher volumetric efficiency, and two is to produce after o type circle is squeezed
The power to valve element 15 can improve the damping of valve element 15, reduce valve element 15 and the probability of abnormal sound that resonates occur at the volley.
Pressure spring 12 gives 15 1 power downward as shown in the figure of valve element, and adjustment seat 11 is by screw thread cooperation and valve body 16
It is connected, and the size being adjusted by the spinning in and out of screw thread.
Electromagnet component 2, it can produce an electromagnetic force driving valve element 15 motion after powered up, comes with reference to Fig. 1
Illustrate its structure.
Coil block 20, it can produce a magnetic field after powered up around.It is centered around the connection inside and outside coil block 20
Seat 21, coil case 25, magnetic conductor 26, diaphragm capsule housing 35, static iron core 23 and dynamic iron core 24 can be upper after being magnetized by this magnetic field
State inside parts and form a magnetic strength line loop.
Connecting seat 21, its effect is that valve member 1 is linked together with electromagnet component 2, as shown in figure 1, its upper end with
Valve body 16 lower end is linked together by interference fit, connecting seat 21 can be pressed after valve body 16 press-in connecting seat 21, valve
It is machined with body 16 and accommodates connecting seat 21 and press the groove of deflection, so can improve the reliability that valve body 16 is connected with connecting seat 21
Property.
Magnetism-isolating loop 22, its one end is linked together with connecting seat 21 by laser welding, the other end pass through laser welding with
Static iron core 23 links together, and laser welding can ensure that junction obtains excellent air-tightness and resistance to pressure.
Dynamic iron core 24 is housed inside connecting seat 21, magnetism-isolating loop 22, static iron core 23, valve body 16 and valve element gripper shoe 17 and forms
Interior volume and the axis direction that is allowed to along above-mentioned space move.
Working gas gap 291 is arranged between static iron core 23 and dynamic iron core 24, and electromagnetic force f2 producing at working gas gap 291 is total
It is towards reducing the direction of working gas gap 291 width, as shown in figure 1, coil to the electromagnetic force f2 direction of dynamic iron core 24 is herein
Downwards.Above-mentioned magnetism-isolating loop 22 is formed using austenitic stainless steel stretching, needs to do demagnetization process after molding, as much as possible to ensure
Magnetic induction line passes through from working gas gap 291.It is provided with the spacing ring 292 that a copper alloy is made, it is used for controlling in working gas gap 291
The minimum widith of air gap 291.
It is machined with a groove inside static iron core 23 to be used for accommodating c type back-up ring 282.Volute spring 281, its big end phase is butted on above-mentioned
C type back-up ring 282, its small end passes through drive link 272 and transmission tube 271 gives dynamic iron core 24 1 spring as shown in Figure 1 upwards
Power f3.Permanent power f1 giving valve element 15 more than spring 12 of above-mentioned power f3, so in the case of being not powered on, dynamic iron core 24 offsets all the time
In valve element gripper shoe 17 and force valve element 15 to be maintained at set upper extreme position, that is, valve port 19 is made to be maintained at set
Maximum opening.Simultaneously after coil electricity, downward electromagnetic force f2 overcome on spring force f3 make dynamic iron core 24, transmission tube
271 are mutually butted on pressure-sensitive part 3 with drive link 272.The power that now pressure-sensitive part 3 produces because of the change of pressure of inspiration(Pi) ps is just permissible
Acted on valve element 15 by drive link 272, transmission tube 271 and dynamic iron core 24.Therefore above-mentioned volute spring 281 has from (obstructed
Electricity) close (energising) pressure-sensitive part 3 effect.
It is machined with two holes intersecting connection inside dynamic iron core 24, be also machined with inside drive link 272 and intersect the two of connection
Individual hole.Above-mentioned hole and transmission tube 271 together form a gas passage for pressure of inspiration(Pi) ps is introduced to pressure-sensitive part 3
Place, refers to Fig. 5.
Pressure-sensitive part 3, its effect is the power experienced the change of pressure of inspiration(Pi) ps and produce a driving valve core movement.In order to
Eliminate the impacts to pressure-sensitive part 3 precision for the factor such as temperature, height above sea level, the present invention adopts aneroid capsule form herein, with reference to
Fig. 6 is illustrating its structure.
Diaphragm capsule housing 35 is used for accommodating the remaining parts of pressure-sensitive part 3, by laser welding, it is with diaphragm 31 and quiet
Iron core 23 links together.Diaphragm 31,, as specific pressure-sensitive part, side is subject to the power being derived from pressure of inspiration(Pi) ps for it
F4, opposite side is subject to power f5 being derived from pressure-sensitive spring 36.Spring base 32 is used for transmitting the power to diaphragm 31 for the pressure-sensitive spring 36
F5, adjustment seat 34 is connected with diaphragm capsule housing 35 by screw thread cooperation, and adjusts the size of f5 by the spinning in and out of screw thread,
Need after being adjusted in place to be welded it with diaphragm capsule housing 35 with laser welding under vacuum conditions.Guide post 33, one end is contained in bullet
In spring abutment 32 internal holes, the other end is contained in adjustment seat 34 internal holes, and its effect is that guide springs seat 32 axially moves.
Be described below the present invention as the control of the variable compressor (hereinafter referred to as compressor) without clutch
Concrete operating principle during element.
After automobile starting, compressor is just in, under the ordering about of electromotor, the state of operating without stopping.When occupant does not open
During Automobile air conditioner switch, valve element 15 is subject to an above-mentioned downward spring force f1 and above-mentioned spring force f3 upwards and f3 ＞ f1,
F3 orders about valve element and moves upwards and be maintained at set upper extreme position, that is, make valve port 19 be maintained at set maximum and open
Degree.Now swash plate chamber pressure p c is in a higher numerical value, and compressor maintains and works under minimum injection rate state.
After occupant opens air conditioning for automobiles, after coil electricity, a downward electromagnetic force can be produced to dynamic iron core 24
F2, f2 overcome above-mentioned spring force f3 upwards so that dynamic iron core 24, transmission tube 271 are mutually butted on diaphragm 31 with drive link 272.Simultaneously
Valve element 15 moves downward and is mutually butted on dynamic iron core 24 under the ordering about of above-mentioned downward spring force f1, and valve port 19 reduces.Due to pressure
Be machined with contracting machine connection swash plate chamber and suction muffler throttle orifice, so when swash plate chamber pressure p c can decline, swashplate angle increase,
Compressor displacement increases.
When compressor with certain displacement operation for a period of time after, vehicle interior temperature declines, and pressure of inspiration(Pi) ps declines therewith, diaphragm
31 power f4 from pressure of inspiration(Pi) ps being subject to decline, so diaphragm 31 can expand in the presence of spring force f5 upwards, pass through
Drive link 272, transmission tube 271 and dynamic iron core 24 are ordered about valve element 15 and are moved upwards, and valve port 19 increases, and swash plate chamber pressure p c increases,
Swashplate angle reduces, and compressor displacement reduces.
Claims (2)
1. a kind of variable compressor solenoid electric valve, it is mainly by the valve member arranged on the same axis, electric magnet portion
Part and pressure-sensitive part three part composition, wherein electromagnet component be arranged between valve member and pressure-sensitive part it is characterised in that
Described valve member (1) includes valve body (16), the valve element (15) in valve body (16), and the bottom of this valve body (16) is opened
Mouth end is connected with valve element gripper shoe (17) by interference fit, and the bottom of described valve element (15) is contained in valve element gripper shoe (17)
Intermediate throughholes in, described valve body (16) inner chamber is provided with some through holes (18), this some through hole (18) be used for connection row
Atmospheric pressure (pd), pressure of inspiration(Pi) (ps) and swash plate cavity pressure (pc)；Described electromagnetic component (2) can produce one after powered up
The electromagnetic force that the valve element (15) driving top adjacently positioned moves；Described pressure-sensitive part (3) is as pressure of inspiration(Pi) (ps)
Change produces the power driving valve element (15) to move；
Described valve element (15) is formed by the big end on top and the small end disjunctor of bottom, and the big end of its middle and upper part is contained in valve body
(16), in inner chamber, the end of small end is contained in valve element gripper shoe (17) intermediate throughholes；It is oblique that valve element gripper shoe (17) is provided with one
Face, this inclined-plane is contacted with the right-angle side on valve body (16)；Described valve element (15) upper and lower ends are each provided with configuring an o
The seal groove of type circle (13), is mounted with one in the body cavity above described valve element (15) and presses in the pressure spring of valve element (15)
(12), being provided with one above this pressure spring (12), to be screwed in valve body (16) by screw thread upper and can be described in spinning in and out adjust
The adjustment seat (11) of pressure spring (12) pressure.
Described valve body (16) lower end is connected with a connecting seat (21) by interference fit, and makes valve portion by this connecting seat (21)
Part (1) is linked together with electromagnet component (2)；Described electromagnetic valve components (2) produce surrounding magnetic field after including an energising
Coil block (20), this coil block (20) is arranged in coil case (25), also includes in this coil case (25)
Magnetic conductor (26), static iron core (23) and dynamic iron core (24), the upper end of described coil case (25) be fixedly connected have described
Connecting seat (21), the bottom of the upper end of a magnetism-isolating loop (22) and connecting seat (21) is passed through to be laser welded, and lower end is passed through to swash
Flush weld is connected to the static iron core (23) in the middle of lower section, and dynamic iron core (24) is placed in the top of static iron core (23) and is housed inside connecting seat
(21) and in the central duct of magnetism-isolating loop (22), and can be along the direction axially-movable of top valve element gripper shoe (17)；
It is provided with the working clearance (291) producing electromagnetic force, this workplace between described static iron core (23) and dynamic iron core (24)
It is provided with one for controlling the spacing ring (292) of working clearance minimum widith in gap (291)；Static iron core (23) inner hollow cavity
Inside it is machined with one and is used for accommodating the groove of c type back-up ring (282), the big end of a volute spring (281) is mutually butted on described c type back-up ring
(282), its small end is by being pressed on drive link (272), and transmission tube (271) connection connecting by drive link (272) top
The dynamic iron core (24) of top, and described volute spring (281) spring force (f3) upwards is in the case of being not powered on, dynamic iron core
(24) mutually it is butted on valve element gripper shoe (17) all the time and forces valve element (15) to be maintained at set upper extreme position so that valve port
(19) it is maintained at set maximum opening；It is butted under described drive link (272) on the spring base of bottom pressure-sensitive part (3), institute
The pressure-sensitive part stated includes a diaphragm capsule housing (35) being arranged on the interior bottom of coil case (25), the upper end of this diaphragm capsule housing (35)
Portion is linked together with diaphragm (31) and static iron core (23), is equipped with pressure-sensitive spring (36) in the middle duct of diaphragm capsule housing (35),
The lower end of this pressure-sensitive spring (36) is pressed on and is rotatably connected in the middle of diaphragm capsule housing (35) pressure regulating seat (34) of duct lower end or by stretching
On sleeve-shaped diaphragm capsule housing (35) bottom surface of molding, upper end is pressed on the spring base (32) of adjacent top diaphragm (31).
2. variable compressor solenoid electric valve according to claim 1 is it is characterised in that described dynamic iron core (24)
Inside is machined with two holes intersecting connection, and drive link (272) is internal to be also machined with two holes intersecting connection, above-mentioned Kong Yuchuan
Dynamic pipe (271) together form a gas passage for pressure of inspiration(Pi) (ps) is introduced to pressure-sensitive part (3) place；
Described pressure-sensitive spring (36) middle setting has one for the guide post (33) that guide springs seat (32) axially moves,
One end of this guide post (33) is contained in spring base (32) internal holes, and the other end is contained in pressure regulating seat (34) internal holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510395867.6A CN105041630B (en) | 2015-07-08 | 2015-07-08 | Electromagnetic control valve for variable displacement compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510395867.6A CN105041630B (en) | 2015-07-08 | 2015-07-08 | Electromagnetic control valve for variable displacement compressor |
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| CN105041630A CN105041630A (en) | 2015-11-11 |
| CN105041630B true CN105041630B (en) | 2017-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106812690A (en) * | 2015-11-27 | 2017-06-09 | 浙江三花汽车零部件有限公司 | For the control valve of inclined disc type variable compressor |
| CN107178492B (en) * | 2016-03-11 | 2019-12-13 | 浙江三花汽车零部件有限公司 | Control valve of variable displacement compressor |
| CN106678382B (en) * | 2016-12-13 | 2022-06-17 | 盾安环境技术有限公司 | Electronic expansion valve of vehicle air conditioning system |
| CN114483968B (en) * | 2016-12-13 | 2023-06-06 | 盾安环境技术有限公司 | Pilot valve and main valve body connecting structure and method |
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| US6302656B1 (en) * | 1998-10-08 | 2001-10-16 | Tgk Co. Ltd. | Solenoid controlled valve and variable displacement compressor |
| JP4829419B2 (en) * | 2001-04-06 | 2011-12-07 | 株式会社不二工機 | Control valve for variable displacement compressor |
| JP4247225B2 (en) * | 2005-10-24 | 2009-04-02 | 株式会社不二工機 | Control valve for variable capacity compressor |
| CN101469696A (en) * | 2007-12-27 | 2009-07-01 | 上海三电贝洱汽车空调有限公司 | Electrical controlled valve of variable displacement compressor |
| JP2011202510A (en) * | 2010-03-24 | 2011-10-13 | Shinhan Electro-Mechanics Co Ltd | Displacement control valve of variable displacement compressor |
| JP6281046B2 (en) * | 2012-04-23 | 2018-02-21 | 株式会社テージーケー | Control valve for variable capacity compressor |
| CN103375391B (en) * | 2013-07-15 | 2016-03-02 | 上海酷风汽车部件有限公司 | Compressor capacity controlling gear and workflow thereof |
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2015
- 2015-07-08 CN CN201510395867.6A patent/CN105041630B/en active Active
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