CN105422912B - Four-way valve and air conditioning system - Google Patents
Four-way valve and air conditioning system Download PDFInfo
- Publication number
- CN105422912B CN105422912B CN201511002613.XA CN201511002613A CN105422912B CN 105422912 B CN105422912 B CN 105422912B CN 201511002613 A CN201511002613 A CN 201511002613A CN 105422912 B CN105422912 B CN 105422912B
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- Prior art keywords
- valve
- pilot valve
- block
- valve block
- pilot
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 19
- 230000005611 electricity Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a four-way valve and an air conditioning system. The four-way valve comprises a main valve and a pilot valve, wherein the pilot valve is provided with a pilot valve body, a pilot valve block and a valve position switching device, the valve position switching device is used for controlling the pilot valve block to switch between a first valve position and a second valve position, the main valve block is in a first working position when the pilot valve block is in the first valve position, the main valve block is in a second working position when the pilot valve block is in the second valve position, the valve position switching device comprises an actuating device and a switching and maintaining device, the switching and maintaining device can enable the pilot valve block of the pilot valve to switch between the first valve position and the second valve position once when the actuating device receives energy to act once, and the switching and maintaining device can enable the pilot valve block to be maintained at the valve position switched by the last action of the actuating device after the energy supply to the actuating device is cut off. According to the invention, energy sources for switching and maintaining the valve position of the four-way valve can be saved.
Description
Technical field
The present invention relates to air-conditioning equipment field, more particularly to a kind of four-way valve and air-conditioning system.
Background technology
Four-way valve can be used for the flow direction for controlling refrigerant, make pump type heat and Wind-cooling type air conditioner carry out heating with
During refrigerating operaton, heat pump refrigeration, the switching of heat-production functions are realized.However, in the prior art, air-conditioning is in heating circulation pattern
, it is necessary to the power supply lasting to pilot valve during lower operation, the pilot valve block of pilot valve is under magneticaction caused by magnet coil gram
Take the tension force of compression spring and slide, promote the valve port on guide valve blocks to switch, high pressure refrigerant is entered the one of cross valve main valve
Hydraulic cavities are held, and the low pressure refrigerant in other end hydraulic cavities is then discharged, so as to establish the pressure at the main valve valve block both ends of main valve
Difference, due to the presence of pressure differential, promote main valve valve block to slide, blast pipe is communicated with indoor heat exchanger connecting tube, air intake duct and
Outdoor heat exchanger connecting tube communicates, and forms heating circulation.And under the long-term severe cold operating mode such as severe winter, want air-conditioning and be constantly in system
Thermal cycling profile must be powered to the magnet coil of pilot valve for a long time, cause the loss and waste of the energy.
The content of the invention
It is an object of the invention to provide a kind of four-way valve and air-conditioning system, it is intended to saves the switching of control four-way valve valve position
The energy.
First aspect present invention provides a kind of four-way valve, including main valve and the pilot valve for controlling the main valve events,
The main valve includes valve body of main valve and main valve valve block, and the main valve valve block has the first working position and the second working position, the elder generation
Pilot valve has guide valve blocks, pilot valve block and valve position switching device, and the pilot valve block has the first valve position and the second valve position, institute
State valve position switching device to be used to control the pilot valve block between the first valve position and the second valve position to switch, described
Pilot valve block is in pilot valve during the first valve position and controls the main valve valve block to be in the first working position, in the pilot valve block
The pilot valve controls the main valve valve block to be in the second working position during in the second valve position, and valve position switching device includes causing
Dynamic device and the switching holding meanss controlled by the actuation means, wherein, the actuation means often receive energy motion once,
The switching holding meanss can be such that the pilot valve block of the pilot valve switches once between the first valve position and the second valve position, and cut
It is disconnected the pilot valve block to be made to be held in the actuating dress switching holding meanss after the energy supply of the actuation means
Put last time and act switched valve position.
Further, the actuation means include magnet coil and the sliding block driven by the magnet coil, the guide
Valve block is connected with the sliding block.
Further, the actuation means also include valve rod, and the pilot valve block is consolidated with the sliding block by the valve rod
Fixed connection.
Further, the switching holding meanss include sliding sleeve, tooth post, runner and the first spring, the sliding sleeve, tooth post and
Runner is located at the axial first end of the pilot valve block, and first spring is located at axially the second end of the pilot valve block and right
The pilot valve block applies the pressure towards its axial first end, and the sliding sleeve is fixed on the guide valve blocks, the sliding sleeve
Inwall be provided with circumferentially and N number of first chute for axially extending, wherein N is the integer more than or equal to 1, the cunning
Set towards one end of the pilot valve block have 2 × N number of guiding surface, the tooth post and the runner with the sliding sleeve coaxially
It is arranged in juxtaposition and can be slid axially in the sliding sleeve vertically, and the circumference of the tooth post has first rib so that institute
State without relative rotation between tooth post and the sliding sleeve, the runner is between the tooth post and the pilot valve block, the tooth
Post has 2 × N number of driving inclined-plane towards one end of the runner, and the runner, which has to slide with N number of first chute, matches somebody with somebody
N number of second rib closed, the surface of the direction tooth post of second rib have and the driving inclined-plane and the guiding
The cooperation inclined-plane that inclined-plane can be slidably matched, the tooth post are servo-actuated with the pilot valve block in the axial direction, and the tooth post is dynamic
Work can make the driving inclined-plane driving cooperation inclined-plane reach the guiding surface, and the guiding surface can be by second rib
Bar is guided in first chute or guiding is to the end face of the direction runner of the sliding sleeve.
Further, the inwall of the sliding sleeve be additionally provided with N number of first chute it is circumferentially staggered be evenly arranged it is N number of
Second chute, second chute axially extend, and the 2 of the sliding sleeve × N number of guiding surface and N number of first chute and
N number of second chute corresponds in the axial direction, and the circumference of the tooth post has and N number of first chute and N number of described
Second chute corresponds 2 × N number of first rib being slidably matched, 2 × N number of driving inclined-plane and the first rib of the tooth post
Bar corresponds in the axial direction, and the distance between the radial outer end of second rib and the axis of the runner are more than described the
The distance of the axis of the bottom land of two chutes and the sliding sleeve, and the guiding surface can guide second rib to described the
In one chute or guiding is to the end face of the direction runner of the sliding sleeve and relative with the opening of second chute.
Further, the switching holding meanss also include second spring, and the second spring is arranged at the pilot valve
Between block and the runner.
Further, the coefficient of elasticity of the second spring is more than first spring.
Further, the coefficient of elasticity of the second spring is less than first spring, and the switching holding meanss are also wrapped
Position limiting structure is included, the position limiting structure is used to limit the minimum axial direction distance between the pilot valve block and the runner.
Further, the position limiting structure includes the sleeve pipe being arranged between the pilot valve block and the runner, described
Second spring is sheathed on described sleeve pipe periphery.
Further, the switching holding meanss also include the 3rd spring, and the 3rd spring is arranged at the tooth post
One end away from the pilot valve block simultaneously applies the pressure towards the pilot valve block to the tooth post.
Further, the switching holding meanss also include connecting rod, and the connecting rod connects the pilot valve block and institute
Tooth post is stated, the runner is movably sheathed in the connecting rod.
Second aspect of the present invention provides a kind of air-conditioning system, including four-way valve, the four-way valve are first aspect present invention
Any one of four-way valve.
Based on four-way valve provided by the invention and air-conditioning system, because the valve position switching device of four-way valve includes actuation means
With switching holding meanss, wherein, actuation means often receive energy motion once make the pilot valve block of pilot valve in the first valve position and
Switch once between second valve position, and cut off is held in pilot valve block to switching holding meanss after the energy supply of actuation means
Actuation means last time acts switched valve position, and main valve is controlled by pilot valve, is linked with pilot valve, so as to actuating dress
Putting every action can once be such that the main valve valve block of four-way valve switches once between the first working position and the second working position simultaneously, and
Cut off and act switched valve position to making main valve valve block be held in actuation means last time after the energy supply of actuation means.Cause
This, no matter four-way valve needs to switch to the first working position or the second working position, need not persistently provide energy for actuation means,
So as to save the energy kept for the switching of four-way valve valve position and valve position.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is broken section structural representation of the four-way valve of the embodiment of the present invention in kind of refrigeration cycle.
Fig. 2 is Fig. 1 A portions mplifying structure schematic diagram.
Fig. 3 is broken section structural representation of the four-way valve of the embodiment of the present invention in kind of refrigeration cycle.
Fig. 4 is Fig. 3 B portions mplifying structure schematic diagram.
Fig. 5 be the embodiment of the present invention four-way valve pilot valve valve position switching device in switch holding meanss sliding sleeve,
Tooth post and runner fit structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to the proportionate relationship of reality.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
As shown in Figures 1 to 4, the embodiment of the present invention provides a kind of four-way valve, including main valve 4 and dynamic for control bound 4
The pilot valve 10 of work, main valve 4 include valve body of main valve 41 and main valve valve block 42, and main valve valve block 42 has the first working position and the second work
Make position, pilot valve 10 has guide valve blocks 11, pilot valve block 12 and a valve position switching device, pilot valve block 12 have the first valve position and
Second valve position, valve position switching device is used to control pilot valve block 12 between the first valve position and the second valve position to switch, in pilot valve
The control bound valve block 42 of pilot valve 10 is in the first working position when block 12 is in the first valve position, and the second valve is in pilot valve block 12
The control bound valve block 42 of pilot valve 10 is in the second working position during position, it is characterised in that valve position switching device includes actuation means
The switching holding meanss 19 controlled with device actuated, wherein, actuation means often receive energy motion once, switch holding meanss
19 can be such that the guide valve blocks 12 of pilot valve 10 switch once between the first valve position and the second valve position, and cut off to actuation means
Switching holding meanss 19 after energy supply can make pilot valve block 12 be held in the switched valve position of actuation means last time action.
Because the valve position switching device of four-way valve includes actuation means and switching holding meanss 19, wherein, actuation means are every
Receiving energy motion once makes the guide valve blocks 12 of pilot valve 10 switch once between the first valve position and the second valve position, and cuts off
Make pilot valve block 12 be held in actuation means last time action to switching holding meanss after the energy supply of actuation means to be cut
The valve position changed, and main valve 4 can be linked, so as to which actuation means, which often act, once may be used by the control of pilot valve 10 with pilot valve 10
So that the main valve valve block 42 of four-way valve switches once between the first working position and the second working position, and cut off to actuation means
Main valve valve block is held in actuation means last time after energy supply and act switched valve position.Therefore, no matter four-way valve needs
The first working position or the second working position are switched to, energy need not be persistently provided for actuation means, so as to economize on
In the energy that the switching of four-way valve valve position and valve position are kept.
Preferably, actuation means include magnet coil 14 and by magnet coil 14 drive sliding block 13, pilot valve block 12 with
Sliding block 13 connects.Certainly, actuation means of the invention can also be other activation manners such as hydraulic actuation, manual.Preferably, cut
Changing holding meanss 19 includes sliding sleeve 191, tooth post 192, the spring 194 of runner 193 and first, sliding sleeve 191, tooth post 192 and runner 193
Positioned at the axial first end of pilot valve block 12, the first spring 194 is located at axially the second end of pilot valve block 12 and to pilot valve block
12 apply the pressure towards its axial first end, and sliding sleeve 191 is fixed on guide valve blocks 11, and the inwall of sliding sleeve 191 was provided with week
To N number of first chute 1911 arranged and axially extended, wherein N is the integer more than or equal to 1, and sliding sleeve 191 is towards guide
One end of valve block 12 has 2 × N number of guiding surface, and tooth post 192 and runner 193 are coaxially arranged in juxtaposition vertically with sliding sleeve 191
And can be slid axially in sliding sleeve 191, and the circumference of tooth post 192 has first rib 1921 so that tooth post 192 and sliding sleeve
Without relative rotation between 191, runner 193 is between tooth post 192 and pilot valve block 12, and tooth post 192 is towards one end of runner 193
With 2 × N number of driving inclined-plane, runner 193 has N number of second rib 1931 that can be slidably matched with N number of first chute 1911, the
The surface towards tooth post 192 of two ribs 1931 has the cooperation inclined-plane that can be slidably matched with driving inclined-plane and guiding surface,
Tooth post 192 is servo-actuated with pilot valve block 12 in the axial direction, and the action of tooth post 192 can make driving inclined-plane driving coordinate inclined-plane arrival to lead
To inclined-plane, guiding surface can guide the second rib 1931 in the first chute 1911 or guiding is to sliding sleeve towards runner
193 end face.
It is highly preferred that the inwall of sliding sleeve 191 be additionally provided with N number of first chute 1911 it is circumferentially staggered be evenly arranged it is N number of
Second chute, the second chute axially extend, and the 2 of sliding sleeve 191 × N number of guiding surface and the first chute 1911 and the second chute
Correspond in the axial direction, the circumference of tooth post 192, which has to correspond with N number of first chute 1911 and N number of second chute, to be slided
2 coordinated × N number of first rib 1921,2 × N number of driving inclined-plane and one a pair in the axial direction of first rib 1921 of tooth post 192
Should, the distance between the radial outer end of the second rib 1931 and the axis of runner 193 are more than the bottom land and sliding sleeve 191 of the second chute
Axis distance, and guiding surface can guide the second rib 1931 in the first chute 1911 or guiding is to sliding sleeve 191
Towards the end face of runner 193 and relative with the opening of the second chute.
The embodiment of the present invention is specifically described below in conjunction with Fig. 1 to Fig. 5.
As shown in figures 1 and 3, the four-way valve of the embodiment includes main valve 4, pilot valve 10 and multiple connecting tubes.Multiple companies
Adapter include pilot valve exhaust connection 1, blast pipe 2, the left balance pipe 3 of pilot valve, indoor heat exchanger connecting tube 5, air intake duct 6,
Outdoor heat exchanger connecting tube 7, pilot valve balance muffler 8, the right balance pipe 9 of pilot valve.
Main valve 4 includes valve body of main valve 41 and the main valve valve block 42 being arranged inside valve body of main valve 41.Main valve valve block 42 is along master
The axial direction of valve body 41 can reciprocally be set.Four working holes are provided with valve body of main valve 41, one of them individually sets
The first working hole 411 put is connected with blast pipe 2, the other three working hole --- the second working hole 412, the 3rd working hole 413
It is arranged side by side with axial direction of the 4th working hole 414 along valve body of main valve 41.Second working hole 412 connects with indoor heat exchanger connecting tube 5
Connect, the 3rd working hole 413 is connected with air intake duct 6, and the 4th working hole 414 is connected with outdoor heat exchanger connecting tube 7.
Wherein, when four-way valve is connected to air-conditioning system, blast pipe 2 is used to be connected with the exhaust outlet of compressor, and air intake duct 6 is used
It is connected in the air entry with compressor, indoor heat exchanger connecting tube 5 is used to be connected with indoor heat exchanger, outdoor heat exchanger connecting tube
7 are used to be connected with outdoor heat exchanger.
It is different according to operating position of the main valve valve block 42 in valve body of main valve 41, main valve valve block 42 have the first working position and
Second working position.In the first working position of main valve valve block 42, the first working hole 411 of main valve 4 connects with the 4th working hole 414,
Second working hole 412 connects with the 3rd working hole 413, so as to which blast pipe 2 connects with outdoor heat exchanger connecting tube 7, and air intake duct 6
Connected with indoor heat exchanger connecting tube 5, now air-conditioning system will be in refrigeration work pattern.In the second work of main valve valve block 42
Position, the first working hole 411 of main valve 4 connect with the second working hole 412, and the 3rd working hole 413 connects with the 4th working hole 414,
So as to which blast pipe 2 connects with indoor heat exchanger connecting tube 5, and air intake duct 6 connects with outdoor heat exchanger connecting tube 7, now, four-way
Air-conditioning system where valve will be in heating mode of operation.
As shown in figure 1, main valve valve block 42 is located inside valve body of main valve 41 when main valve valve block 42 is in its first working position
Left side；As shown in figure 3, when main valve valve block 42 is in its second working position, it is right that main valve valve block 42 is located at the inside of valve body of main valve 41
Side.
Switching of the main valve valve block 42 between its first working position and the second working position is controlled by pilot valve 10, i.e. main valve valve
Motion of the block 42 inside valve body of main valve 41 is controlled by pilot valve 10.Therefore, be additionally provided with valve body of main valve 41 respectively with elder generation
The the first main valve control mouth 415 and the second main valve control mouth 416 that pilot valve 10 connects.In the present embodiment, the first main valve control mouth 415
It is located at the axial both ends of main valve 4 respectively with the second main valve control mouth 416.As shown in figures 1 and 3, the first main valve control mouth 415
In the left end of main valve valve block 42, the second main valve control mouth 416 is located at the right-hand member of main valve valve block 42.When the first main valve control mouth 415
More than the Fluid pressure at the second main valve control mouth 416, (pressure that the left end of main valve valve block 42 is subject to is more than master to the Fluid pressure at place
The pressure that the right-hand member of valve valve block 42 is subject to) and when overcoming the resistance of main valve valve block 41, main valve valve block 42 can be moved from left dislocation to
Right position, i.e. main valve valve block 42 switch to the second working position from its first working position；Conversely, when at the second main valve control mouth 416
Fluid pressure be more than the first main valve control mouth 415 at Fluid pressure (pressure that the right-hand member of main valve valve block 41 is subject to is more than main valve
The pressure that the left end of valve block 41 is subject to) and when overcoming the resistance of main valve valve block 41, main valve valve block 42 can be moved to a left side from right position
Position, so as to which main valve valve block 42 switches to the first working position from its second working position.
As shown in Figures 1 to 4, pilot valve 10 includes guide valve blocks 11, pilot valve block 12 and valve position switching device.Guide
Valve block 12 is arranged inside guide valve blocks 11, and pilot valve block 12 can reciprocally be set along the axis of guide valve blocks 11.
Valve position switching device can control reciprocating motion of the pilot valve block 12 in guide valve blocks 11, so that pilot valve block 12 is in the first valve position
And second switch between valve position, and then main valve valve block 42 can be made to switch between the first working position and the second working position.
Four valve ports, respectively the first valve port 111, the second valve port 112, the 3rd valve port 113 are provided with guide valve blocks 11
With the 4th valve port 114.First valve port 111 is separately provided, and the second valve port 112, the 3rd valve port 113 and the 4th valve port 114 are along guide
The axis of valve body 11 is arranged side by side.
As shown in figures 1 and 3, the first valve port 111 of pilot valve 11 is connected by pilot valve exhaust connection 1 and blast pipe 2
Connect, the second valve port 112 is connected by the left balance pipe 3 of pilot valve with the first main valve control mouth 415 of main valve 4, and the 3rd valve port 113 is logical
Pilot valve balance muffler 8 is crossed to be connected with air intake duct 6, the 4th valve port 114 pass through the right equality pipe 9 of pilot valve and main valve 4 second
Main valve control mouth 416 connects.
Pilot valve 10 has the first valve position and the second valve position.In the first valve position of pilot valve 10, the second valve port 112 and the 3rd
Valve port 113 connects, and the first valve port 111 connects with the 4th valve port 114, so that the first main valve control mouth 415 of main valve 42 is logical
Cross the left balance pipe 3 of pilot valve and pilot valve balance muffler 8 connects with air intake duct 6, the second main valve control mouth 416 passes through pilot valve
Right balance pipe 9 and pilot valve exhaust connection 1 connect with blast pipe 2, are more than even if obtaining the pressure that the left end of main valve valve block 42 is subject to
The pressure that the right-hand member of main valve valve block 42 is subject to, so as to so that main valve valve block 42 switches to the second working position from its first operating position
Put or maintain its second operating position.In the second valve position of pilot valve 10, the first valve port 111 connects with the second valve port 112, the
Three valve ports 113 connect with the 4th valve port 114, so that the first main valve control mouth 415 of main valve 42 passes through the left balance of pilot valve
Pipe 3 and pilot valve exhaust connection 1 connect with blast pipe 2, and the second main valve control mouth 416 is by the right balance pipe 9 of pilot valve and first
Pilot valve balance muffler 8 connects with air intake duct 6, even if obtaining the pressure that the left end of main valve valve block 42 is subject to is less than the right-hand member of main valve valve block 42
The pressure being subject to, so as to so that main valve valve block 42 from its second operating position switch to the first operating position or maintain its
One operating position.
In the present embodiment, as depicted in figs. 1 and 2, when pilot valve block 12 is in left position, pilot valve block 12 is in first
Valve position；As shown in Figure 3 and Figure 4, when pilot valve block 12 is in right position, pilot valve block 12 is in the first valve position.
As it was previously stated, switching of the pilot valve 10 between its first valve position and the second valve position is controlled by valve position switching device.
As shown in Figures 1 to 4, valve position switching device includes actuation means and switching holding meanss 19.In the present embodiment, cause
Dynamic device includes magnet coil 14, the sliding block 13 and valve rod 15 that coordinate with magnet coil.
Sliding block 13, valve rod 15 and switching holding meanss 19 may be contained within inside valve body 12.Sliding block 13 is by valve rod 15 and first
Pilot valve block 12 connects.For Fig. 1 into Fig. 4, sliding block 13 and valve rod 15 are located at the right side of pilot valve block 12.Magnet coil 14 is set formerly
The periphery of the right-hand member of pilot valve body 11.
Wherein, magnet coil 14 often it is electric once, actuation means and switching holding meanss 19 collective effect under, guide
Valve block 12 all makees the switching of position, and magnet coil 14 it is electric after dead electricity, pilot valve block 12 will also keep magnet coil 14 again
Respective valve position before dead electricity.Specific explanations are as follows：If magnet coil 14 obtains electric pilot valve block 12 before and is in left position (the first valve
Position), magnet coil 14 it is electric after, pilot valve block 12 will move to right position from left dislocation and (switch to the second valve from the first valve position
Position), and after the dead electricity of magnet coil 14, pilot valve block 12 maintains right position (maintaining the second valve position).Magnet coil 14 is again
It is electric after, pilot valve block 12 will be moved to left position (switching to the first valve position from the second valve position) from right position, and in magnet coil 14
Again after dead electricity, pilot valve block 12 will be maintained at left position (maintaining the first valve position).
As shown in Figures 1 to 5, in the present embodiment, switching holding meanss 19 include sliding sleeve 191, tooth post 192, runner 193,
Second spring 195, the 3rd spring 196 and connecting rod 197.
Sliding sleeve 191, tooth post 192 and runner 193 are arranged at the axial first end (Fig. 1 to Fig. 4 left end) of pilot valve block 12,
First spring 194 is arranged at axially the second end (Fig. 1 to Fig. 4 right-hand member) of pilot valve block 12.In the present embodiment, the also position of sliding block 13
In the right-hand member of pilot valve block 12, the first spring 194 is arranged between sliding block 13 and the right-hand member wall of guide valve blocks 11, the first spring
194 can apply the power (being power to the left in the present embodiment) towards its axial first end by sliding block 13 to valve block 14.Sliding sleeve
191st, tooth post 192, runner 193 are coaxially disposed, and tooth post 192 and runner 193 are arranged side by side and can be in the interior edges of sliding sleeve 191 vertically
Slide axially.Runner 193 is between tooth post 192 and pilot valve block 12.
The inside sidewalls of sliding sleeve 191 have been evenly distributed N number of first chute 1911, while the inside sidewalls of sliding sleeve 191 are also
It has been evenly distributed N number of second chute.N number of first chute 1911 and N number of second chute along the axially extending of sliding sleeve 191 and are handed over
Mistake arrangement, and the angle between each first chute 1911 and adjacent two the second chutes is equal, i.e. uniform cloth in the circumferential
Put.The radial depth of first chute 1911 is more than the radial depth of the second chute.In the present embodiment, the first chute 1911 is in depth
The side wall of sliding sleeve 191 is penetrated on direction, the bottom land of the second chute has a certain distance with the side-wall outer side of sliding sleeve 191.
Setting 2 × N number of cunning axially extended on right-hand member (one end relative with pilot valve block 12) end face of sliding sleeve 191
Tooth 1912 is covered, sliding sleeve tooth 1912 is set correspondingly with N number of first chute 1911 and N number of second chute 1912.Sliding sleeve tooth
1912 have from tooth top to tooth root along the axially arranged straight-sided flank of sliding sleeve 191 and from tooth top to tooth root with straight-sided flank into angle
Pitch face, the pitch face form guiding surface.The straight-sided flank of the adjacent sliding sleeve tooth 1912 of each two passes through a pitch face interval.
Each chute of first chute 1911 and second is arranged at corresponding pitch face close to tooth location of root, and the first chute 1911 and the
One side wall of two chutes is connected with the straight-sided flank of the adjacent sliding sleeve tooth 1912 of corresponding sliding sleeve tooth 1912 and is in same
In individual plane.
Axis of the tooth post 192 along sliding sleeve 191 is arranged in sliding sleeve 191 with being reciprocally moveable.The periphery of tooth post 192 is evenly equipped with
2 × it is N number of with N number of first chute 1911 and the one-to-one first rib 1921 of N number of second chute 1912, first rib 1921 with
The corresponding slide of first chute 1911 and second coordinates.Right-hand member (one end relative with the pilot valve block 12) end of tooth post 192
It is provided with first rib 1,921 2 on face correspondingly × N number of tooth post tooth 1922.Each tooth post tooth 1922 include from tooth top to
Two pitch faces of tooth root, two pitch faces intersect at tooth top, in two pitch faces, on axial direction with the guiding of sliding sleeve tooth 191
The relative pitch face in inclined-plane is driving inclined-plane.The driving inclined-plane of each first rib 1921 of tooth post 192 can at least slide into
The guiding surface of the sliding sleeve tooth 1912 of sliding sleeve 191 is concordant.
Runner 193 is included along N number of second rib 1931 that rotor periphery is uniform and axially extends.Second rib 1931
Radial outer end to the axis of runner 193 distance be more than the second chute bottom land to sliding sleeve 191 axis distance.Slided first
In the case of the side wall of the non-through sliding sleeve of groove, the distance of the axis of the radial outer end of the second rib 1931 to runner 193 is less than the
The distance of the bottom land of one chute 1911 and the axis of sliding sleeve 191.Runner 193 can slide axially in sliding sleeve 191.Second rib
1931 side towards tooth post 192 has the cooperation inclined-plane for being used for being slidably matched with driving inclined-plane and guiding surface, the
When two ribs 1931 are in contact with tooth post tooth 1922, the driving inclined-plane on the cooperation inclined-plane and tooth post tooth 1922 of the second rib 1931 is matched somebody with somebody
Close, when the second rib 1931 contacts with the sliding sleeve tooth 1912 of sliding sleeve 191, coordinate the guiding surface on inclined-plane and sliding sleeve tooth 1912 to match somebody with somebody
Close.
Switching holding meanss 19 also include connecting rod 197, and connecting rod 197 connects pilot valve block 12 and tooth post 192, for making
The two keeps linkage, so that tooth post 192 keeps linking with sliding block 13, so that the action of sliding block 13 drives tooth post 192 to act,
I.e. magnet coil 14, which is powered, once can cause tooth post 192 to act once.Runner 193 is sleeved in connecting rod 197, and runner
193 can be in the translation of the periphery of connecting rod 197 and rotation.
Second spring 195 is between pilot valve block 12 and runner 193, for alloing runner 193 freely rotating
Keep that there is certain distance between pilot valve block 12 and runner 193 simultaneously.
In the present embodiment, the coefficient of elasticity of second spring 195 is more than the first spring 194.
In other unshowned embodiments, the coefficient of elasticity of second spring 195 might be less that the first spring 194, but
Runner 193 can prevent guide valve blocks 12 from automatically reseting after now cutting off energy supply in order to ensure actuation means, and switching is kept
Device 19 also includes position limiting structure, and position limiting structure is used to limit the minimum axial direction distance between pilot valve block 12 and runner 193.Its
In, position limiting structure includes the sleeve pipe being arranged between pilot valve block 12 and runner 193, and second spring 195 is sheathed on sleeve pipe periphery,
Sleeve pipe can be set in connecting rod 197.
3rd spring 196 is arranged between the left end of guide valve blocks 11 and the bottom surface of tooth post 192.3rd spring 196 can be with
Tooth post 192 is set to be in abutment condition all the time with runner 193, when magnet coil 14 is powered, it is ensured that switching holding meanss 19
Quick acting, so as to ensure the speed of the valve position of guide valve blocks 12 switching.
With reference to Fig. 1 to Fig. 4, phase is made to the operation principle of the switching device of the guide valve 10 of the above embodiment of the present invention
It should describe：
As depicted in figs. 1 and 2, it is the left position in Fig. 1 and Fig. 2 that now pilot valve block 12, which is in the first valve position, the master of main valve 4
Valve valve block 42 is then in the first working position, and the air-conditioning system where four-way valve is in kind of refrigeration cycle pattern.Now magnet coil 14
Dead electricity, the first spring 16 are uncompressed.
Now, the first rib 1921 in tooth post 192 is arranged on the first chute 1911 and the second chute of sliding sleeve 191
The second rib 1931 on interior, runner 193 is arranged in the first chute 1911 of sliding sleeve 191.First chute 1911 and second
Chute has fettered the rotation of tooth post 192, and the first chute 1911 has also fettered the rotation of runner 193, made tooth post 192 and runner simultaneously
193 can only axially slide.Due to the effect of second spring 195, now tooth post 192 with the first chute 1911 coordinates first
In the driving inclined-plane of tooth post tooth 1922 corresponding to rib 1921 with the part that the first chute 1911 overlaps and the second of runner 193
The cooperation inclined-plane of the left end of rib 1931 abuts.
When magnet coil 14 must be electric, sliding block 13 overcomes the spring force of the first spring 194 member related to the grade of pilot valve block 12
Acted to the right after the resistance of part, sliding block 13 drives tooth post 192 to be axially moved to the right.The driving inclined-plane of tooth post 192 with turn
The part that cooperation inclined-plane on wheel 193 abuts, which promotes, coordinates inclined-plane and runner 193 to be axially moved to the right simultaneously, works as driving
When inclined-plane is moved to concordant with guiding surface, runner 193 slide axially to cross the first chute 1911 and with the first chute
The position of the straight-sided flank of 1911 cell wall connection, circumferential constraint of the sliding sleeve 191 to runner 193 disappear, and runner 193 can occur to turn
It is dynamic, then coordinate inclined-plane to be moved to driving inclined-plane part corresponding with the guiding surface of sliding sleeve 191 along driving inclined-plane, that is, drive
Inclined-plane will coordinate inclined-plane to push to the position that can coordinate with the guiding surface of sliding sleeve 191, coordinate inclined-plane to continue along guiding surface
It is mobile, you can to rotate to left movement a small distance and simultaneously and be moved to after an angle and the under the guiding of guiding surface
The end of the relative sliding sleeve 191 of two chutes 1911, the second rib 1931 be diametrically higher by the part of the second chute depth with
The end face overlap joint of sliding sleeve 191, then runner 193 relative to Fig. 1 and Fig. 2 state pushed to the right after a segment distance again gently towards
Stop after left rollback, retract the height that distance is sliding sleeve tooth 1912, no longer retracts afterwards, so as in the presence of runner 193
It is the second valve position that pilot valve block 12, which is in right position,.
The dead electricity of magnet coil 14 can now be made, and even if the dead electricity of magnet coil 14, it is first because of the backstop action of runner 193
Pilot valve block 12 also will not return to left position from its right position, so as to which pilot valve block 12 switches to the second valve position from the first valve position and can tie up
Hold and be changed into the state shown in Fig. 3 to Fig. 4 in the second valve position, the state shown in pilot valve 10 from Fig. 1 and Fig. 2.Correspondingly, main valve 4
Main valve valve block 42 switch to the second working position from the first working position, and be held in the second working position.Therefore, the four of the present embodiment
Port valve also can keep air-conditioning system to be in heating circulation pattern for a long time in the case of not to the continued power of pilot valve 10.
As shown in Figure 3 and Figure 4, it is the second valve position that now pilot valve block 12, which is in right position, the main valve valve block 42 of main valve 4 then phase
The second working position is should be at, the air-conditioning system where four-way valve is in heating circulation pattern.
When magnet coil 14 again it is electric, driving sliding block 13 moves right, and it is one small that sliding block 13 drives tooth post 192 to move right
When segment distance makes the driving inclined-plane in tooth post 192 connect with the guiding surface of corresponding sliding sleeve tooth 1912, inclined-plane driving driven
Runner 193 move to right therewith, and the cooperation inclined-plane of runner 193 with driving inclined-plane be moved to guiding surface coordinate position after
An angle is rotated further by the openend of the first chute 1911, now, magnet coil 14 simultaneously along guiding surface to left movement
Dead electricity, then the first spring 194 by promote sliding block 13 be moved to the left, tooth post 192 is moved to the left with sliding block 13, loses tooth post 192
Backstop, the second rib 1931 of runner 193 can slide along the first chute 1911, and return to the state shown in Fig. 1 to Fig. 2,
Pilot valve block 12 returns to left position, i.e., switches to the first valve position from the second valve position.So as to which main valve valve block 42 switches from the second working position
To the first working position.
In the handoff procedure of valve position, tooth post 192 is past vertically under the limitation of the first chute 1911 and the second chute all the time
Multiple motion, and runner 192 then often switches once rotation 180/N degree in the same direction.
From the above description, it can be seen that after the four-way valve of the present embodiment is installed in air-conditioning system, no matter air-conditioning is set to locate for a long time
Circulation pattern is still heated in kind of refrigeration cycle pattern, without for a long time powering to magnet coil 14, is used to cut so as to save
The energy of the valve position of the pilot valve block 12 of pilot valve 10 is changed, namely has saved the work of the main valve valve block 42 for switching main valve 4
The energy of position.Moreover, it is also possible to the problem of avoiding causing control to be failed because of long-term power supply.In addition, in existing four-way valve
The parts such as increase sliding sleeve, tooth post and runner can realize the valve position handover operation without continued power, and cost is relatively low, processing side
Just.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (12)
1. a kind of four-way valve, including main valve (4) and the pilot valve (10) for controlling the main valve (4) to act, the main valve (4)
Including valve body of main valve (41) and main valve valve block (42), the main valve valve block (42) has the first working position and the second working position, institute
Stating pilot valve (10) has guide valve blocks (11), pilot valve block (12) and valve position switching device, and the pilot valve block (12) has
First valve position and the second valve position, valve position switching device are used to control the pilot valve block (12) in the first valve position and institute
State and switch between the second valve position, the pilot valve (10) controls the main valve when the pilot valve block (12) is in the first valve position
Valve block (42) is in the first working position, when the pilot valve block (12) is in the second valve position described in pilot valve (10) control
Main valve valve block (42) is in the second working position, it is characterised in that valve position switching device includes actuation means and by the cause
The switching holding meanss (19) of dynamic device control, wherein, the actuation means often receive energy motion once, and the switching is kept
Device (19) can be such that the pilot valve block (12) of the pilot valve (10) switches once between the first valve position and the second valve position, and cut
It is disconnected the pilot valve block (12) to be made to be held in institute the switching holding meanss (19) after the energy supply of the actuation means
State actuation means last time and act switched valve position.
2. four-way valve according to claim 1, it is characterised in that the actuation means include magnet coil (14) and by institute
The sliding block (13) of magnet coil (14) driving is stated, the pilot valve block (12) is connected with the sliding block (13).
3. four-way valve according to claim 2, it is characterised in that the actuation means also include valve rod (15), the elder generation
Pilot valve block (12) is fixedly connected with the sliding block (13) by the valve rod (15).
4. four-way valve according to claim 1, it is characterised in that it is described switching holding meanss (19) include sliding sleeve (191),
Tooth post (192), runner (193) and the first spring (194), the sliding sleeve (191), tooth post (192) and runner (193) are positioned at described
The axial first end of pilot valve block (12), first spring (194) are located at axially the second end of the pilot valve block (12) simultaneously
Pressure towards its axial first end is applied to the pilot valve block (12), the sliding sleeve (191) is fixed on the guide valve blocks
(11) on, the inwall of the sliding sleeve (191) is provided with circumferentially and N number of first chute (1911) for axially extending, wherein N
For the integer more than or equal to 1, the sliding sleeve (191) has 2 × N number of guiding oblique towards one end of the pilot valve block (12)
Face, the tooth post (192) and the runner (193) are coaxially arranged in juxtaposition and can be in institutes vertically with the sliding sleeve (191)
State and slid axially in sliding sleeve (191), and the circumference of the tooth post (192) has first rib (1921) so that the tooth post
(192) it is located at the tooth post (192) and the pilot valve without relative rotation, the runner (193) between the sliding sleeve (191)
Between block (12), the tooth post (192) has 2 × N number of driving inclined-plane, the runner towards one end of the runner (193)
(193) there is N number of second rib (1931) that can be slidably matched with N number of first chute (1911), second rib
(1931) surface of the direction tooth post (192) has what can be slidably matched with the driving inclined-plane and the guiding surface
Coordinate inclined-plane, the tooth post (192) is servo-actuated with the pilot valve block (12) in the axial direction, and the action energy of the tooth post (192)
The driving inclined-plane driving cooperation inclined-plane is set to reach the guiding surface, the guiding surface can be by second rib
(1931) guiding in first chute (1911) or guiding to the sliding sleeve (191) the direction runner (193)
End face.
5. four-way valve according to claim 4, it is characterised in that the inwall of the sliding sleeve (191) be additionally provided with it is described N number of
First chute (1911) is in circumferentially staggered N number of second chute being evenly arranged, and second chute axially extends, and the cunning
The 2 of set (191) × N number of guiding surface and N number of first chute (1911) and N number of second chute, one a pair in the axial direction
Should, the circumference of the tooth post (192), which has, to be corresponded and slides with N number of first chute (1911) and N number of second chute
The 2 of dynamic cooperation × N number of first rib (1921), 2 × N number of driving inclined-plane of the tooth post (192) and the first rib
(1921) correspond in the axial direction, between the radial outer end of second rib (1931) and the axis of the runner (193)
Distance be more than second chute bottom land and the sliding sleeve (191) axis distance, and the guiding surface can be by institute
State in the second rib (1931) guiding to first chute (1911) or guiding turns to described in the direction of the sliding sleeve (191)
Take turns the end face of (193) and relative with the opening of second chute.
6. four-way valve according to claim 4, it is characterised in that the switching holding meanss (19) also include second spring
(195), the second spring (195) is arranged between the pilot valve block (12) and the runner (193).
7. four-way valve according to claim 6, it is characterised in that the coefficient of elasticity of the second spring (195) is more than institute
State the first spring (194).
8. four-way valve according to claim 6, it is characterised in that the coefficient of elasticity of the second spring (195) is less than institute
The first spring (194) is stated, the switching holding meanss (19) also include position limiting structure, and the position limiting structure is used to limit the elder generation
Minimum axial direction distance between pilot valve block (12) and the runner (193).
9. four-way valve according to claim 8, it is characterised in that the position limiting structure includes being arranged at the pilot valve block
(12) sleeve pipe between the runner (193), the second spring (195) are sheathed on described sleeve pipe periphery.
10. four-way valve according to claim 4, it is characterised in that the switching holding meanss also include the 3rd spring
(196), the 3rd spring (196) is arranged at one end of the remote pilot valve block (12) of the tooth post (192) and to institute
State pressure of tooth post (192) application towards the pilot valve block (12).
11. four-way valve according to claim 4, it is characterised in that the switching holding meanss also include connecting rod
(197), the connecting rod (197) connects the pilot valve block (12) and the tooth post (192), and the runner (193) is removable
Ground is sheathed in the connecting rod (197).
12. a kind of air-conditioning system, including four-way valve, it is characterised in that the four-way valve is according to any in claim 1 to 11
Four-way valve described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002613.XA CN105422912B (en) | 2015-12-25 | 2015-12-25 | Four-way valve and air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002613.XA CN105422912B (en) | 2015-12-25 | 2015-12-25 | Four-way valve and air conditioning system |
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| CN105422912A CN105422912A (en) | 2016-03-23 |
| CN105422912B true CN105422912B (en) | 2018-04-06 |
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| CN201511002613.XA Active CN105422912B (en) | 2015-12-25 | 2015-12-25 | Four-way valve and air conditioning system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122559B (en) * | 2016-08-01 | 2019-03-12 | 珠海格力电器股份有限公司 | Air conditioner, four-way valve and switching device thereof |
| JP7140416B2 (en) * | 2018-11-29 | 2022-09-21 | 株式会社不二工機 | Flow switching valve |
| CN112066034A (en) * | 2020-09-15 | 2020-12-11 | 珠海格力电器股份有限公司 | Four-way valve, heat exchange system and air conditioning unit |
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| CN205244476U (en) * | 2015-12-25 | 2016-05-18 | 珠海格力电器股份有限公司 | Four-way valve and air conditioning system |
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| CN2434494Y (en) * | 2000-08-11 | 2001-06-13 | 浙江春晖集团公司 | Four-way electromagnetic change valve |
| JP2003021433A (en) * | 2001-07-11 | 2003-01-24 | Saginomiya Seisakusho Inc | Driving device for fluid control valve and air conditioner |
| CN101440880A (en) * | 2007-11-22 | 2009-05-27 | 浙江三花制冷集团有限公司 | Large-scale four-way reversing valve |
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| CN105422912A (en) | 2016-03-23 |
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