CN108799528A - Valve gear - Google Patents
Valve gear Download PDFInfo
- Publication number
- CN108799528A CN108799528A CN201710292781.XA CN201710292781A CN108799528A CN 108799528 A CN108799528 A CN 108799528A CN 201710292781 A CN201710292781 A CN 201710292781A CN 108799528 A CN108799528 A CN 108799528A
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- China
- Prior art keywords
- valve
- sliding block
- base part
- open slot
- retainer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000008676 import Effects 0.000 claims abstract description 27
- 210000000664 rectum Anatomy 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010257 thawing Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a kind of valve gear, including driving part and valve base part, there is valve base part import, outlet and the valve port with outlet, import to be connected to valve chamber；Further include the sliding block supported by valve base part, the bottom surface of sliding block is bonded with the top surface of valve base part；Sliding block, which has, rotates around it multiple runner holes, an open slot and the closure part of center circumferentially；The aperture in each runner hole is not exactly the same and latus rectum of respectively less than valve port, the circulation area of open slot are not less than the circulation area of valve port, and each runner hole and open slot are connected to valve chamber；Driving part can drive sliding block opposite valve seat component to rotate, so that runner hole or open slot and outlet, or closure part is made to close outlet.The flow deviation of the valve gear can control in smaller range, to meet the flow accuracy demand for control of refrigerator and similar small refrigeration systems, and has the function of valve port standard-sized sheet, can realize evaporator surface defrosting and increase humidity in refrigerator, improve the fresh-keeping effect of refrigerator.
Description
Technical field
The present invention relates to fluid control component technical field, the valve more particularly to a kind of valve gear for flow-rate adjustment fills
It sets.
Background technology
With the adjustment of refrigerator Energy Efficiency Standard test request, the efficiency of refrigerator is required to improve, the throttle of current refrigerator
Divide and mostly use capillary-compensated greatly, since capillary does not have the function of flow-rate adjustment, under difficult environmental conditions, refrigeration system
Best operating condition cannot be reached, be affected to efficiency.
In the prior art, existing will be applied to electronic expansion valve for air conditioner in refrigerator, to realize the work(of flow-rate adjustment
Can, referring to FIG. 1, Fig. 1 is the diagrammatic cross-section of existing electronic expansion valve for air conditioner.
When work, by external magnet exciting coil, driving motor magnet rotor 1 ' rotates, and drives needle screw rod 2 ' and fixed spiral shell
Mother 3 ' relatively rotates, and realizes moving up and down for 4 ' position needle 5 ' of valve port, opposite by the conical surface end and valve port 4 ' of needle 5 '
The variation of the position flow area is realized in the change of position, to adjust the size of flow.
Within air-conditioning systems, electric expansion valve uses closed-loop control, is linear discharge characteristic, in certain pulses operating point
Flow deviation influence in systems it is relatively small, flow deviation allows to reach 20%；In addition, in air-conditioning system, compressor
It does not shut down, when reaching control equalized temperature, using extremely low frequency run compressor, such as the frequency of 10Hz, so, idle call
Electric expansion valve need not have the function of Close All.
But refrigeration for refrigerator amount is small, correspondingly, adjustable range is also small, electric expansion valve shown in FIG. 1 using valve port 4 ' and
Needle 5 ' with taper is come when adjusting flow, flow control accuracy deviation will reach 20%, considerably beyond the flow of refrigerator requirement
Control accuracy.
In addition, refrigerator is intermittent type refrigerating device, it is solidifying to close refrigeration for the compressor shutdown after reaching equalized temperature after shutdown
Device refrigerant inflow evaporator not only contributes to energy saving, moreover it is possible to ensure more accurate temperature control, so existing electronic expansion
Valve cannot be satisfied the interior leakage demand of refrigerator system, i.e., needle 5 ' can be made 4 ' Close All of valve port, valve port 4 ' and needle 5 '
Also influence flow control accuracy easy to wear, and be easy stuck.
It is appreciated that other than refrigerator, for other small refrigeration systems, there is also similar problems.
Therefore, a kind of function that can not only realize flow-rate adjustment how is designed, and disclosure satisfy that refrigerator and similar simultaneously
The valve gear of the flow accuracy demand for control of small refrigeration systems is that those skilled in the art need the technology solved to ask at present
Topic.
Invention content
The object of the present invention is to provide a kind of valve gear, the flow deviation of the valve gear can control smaller range with
It is interior, it disclosure satisfy that the flow accuracy demand for control of refrigerator and similar small refrigeration systems, and have the function of valve port standard-sized sheet, it can
It realizes evaporator surface defrosting and increases humidity in refrigerator, improve the fresh-keeping effect of refrigerator.
In order to solve the above technical problems, the present invention provides a kind of valve gear, including driving part and valve base part, the valve
There is base member import, outlet and the valve port with the outlet, the import to be connected to valve chamber；
Further include the sliding block supported by the valve base part, the bottom surface of the sliding block and the top surface of the valve base part are pasted
It closes；
The sliding block, which has, rotates around it multiple runner holes, an open slot and the closure part of center circumferentially；Each institute
State runner hole aperture is not exactly the same and the latus rectum of respectively less than described valve port, the circulation area of the open slot is not less than described
The circulation area of valve port, each runner hole and the open slot are connected to the valve chamber；
The driving part can drive the sliding block to be rotated relative to the valve base part, so that the runner hole or described
Open slot is connected to the valve port, or the closure part is made to close the valve port.
Valve gear provided by the invention has abandoned the needle structure of electronic expansion valve for air conditioner in the prior art, will be used for
Adjust flow component realized using slide block structure, circumferentially arranged multiple runner holes, an open slot and envelope on sliding block
Stifled portion, wherein each runner hole and open slot are connected to valve chamber, and the import of valve base part is also connected to valve chamber, passes through driving portion
Part driving sliding block rotates to make runner hole or open slot are connected to the valve port of valve base part, to make import and outlet, or
Person makes closure part close port, to make import be separated with outlet, in this way, by the rotation of sliding block opposite valve seat component come real
The connection or partition of existing import and outlet, make valve gear have the function of Close All, and be not in stuck mistake when fully closed
The case where effect.
In addition, the aperture in each runner hole is not exactly the same and latus rectum of respectively less than valve port makes in this way, being rotated by sliding block
Different runner holes is connected to valve port on sliding block, and the adjusting of flow is realized with this, because runner hole is easy to process and accuracy error
It can control in smaller range, it can be according to the smaller of system requirements setting, so the setting for passing through sliding block runner hole is held
Easily by flow deviation control in smaller range, such as within 5%, the flow of refrigerator and similar small refrigeration systems disclosure satisfy that
Control accuracy requirement；Meanwhile the circulation area of open slot is not less than the circulation area of valve port, when open slot is connected to valve port,
Valve gear has the function of standard-sized sheet, and throttle degree is relatively small, so as to realize evaporator surface defrosting and increase wet in refrigerator
Degree improves fridge freshness retaining effect.
The driving part includes rotor part, and the rotor part includes magnet and is plugged in the shaft of the magnet,
The slide block set is set to the shaft, and the rotor part can drive the sliding block to rotate when rotating.
It is additionally provided with clamping structure between the magnet and the sliding block.
There is the key portion of protrusion, the sliding block to have the keyway coordinated with the key portion, the key for the lower end of the magnet
Portion and the keyway form the clamping structure.
Further include the shell for being coated at the magnet, the bottom of the shell is fixed with the valve base part；The magnet
Including canister portion and partition board portion, the inner cavity of cartridge is divided into epicoele and cavity of resorption by the partition board portion, wherein the week of the cavity of resorption
Wall, the shell and the valve base part are enclosed the valve chamber.
It is additionally provided with preloading spring between the sliding block and the partition board portion, so that the sliding block is tightly attached to the valve base part
Top surface.
There is the partition board portion more than one balance hole, the balance hole to be connected to the epicoele and the cavity of resorption.
The shaft is also plugged in the valve base part, and the two clearance fit, so that the shaft can be relatively described
Valve base part rotates.
Further include stop component, to limit the initial relative position of the sliding block and the valve base part.
The stop component includes being fixedly arranged on the first retainer of the valve base part and being set to the driving part
Second retainer, the driving part can drive second retainer to be rotated synchronously with the sliding block；And it is configured to：
Second retainer is in the state that abuts with the side of first retainer, and the valve is closed in the closure part
Mouthful；Second retainer with the sliding block rotate during, multiple runner holes, the open slot successively with the valve
Mouth connection, and in rotational direction, in the state that the open slot is connected to the valve port, second retainer and described first
The other side of retainer abuts.
First retainer is elastic component.
The bottom surface of the sliding block has multiple inner groovies, corresponding with multiple positions in runner hole respectively, and each described
The size of inner groovy is all higher than the corresponding runner hole.
The latus rectum of the valve port is more than 1.6mm, and the aperture in each runner hole is chosen between 0.1mm~0.3mm.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of existing electronic expansion valve for air conditioner；
Fig. 2 is a kind of diagrammatic cross-section of specific embodiment of valve gear provided by the present invention；
Fig. 3 is a kind of structural schematic diagram of angle of sliding block shown in Fig. 2；
Fig. 4 is the structural schematic diagram of sliding block another kind angle shown in Fig. 2；
Fig. 5 is the vertical view of sliding block shown in Fig. 2；
Fig. 6 is the diagrammatic cross-section of sliding block shown in Fig. 2；
Fig. 7 is the vertical view for the sliding block that filter element is equipped in specific embodiment；
Fig. 8 is the diagrammatic cross-section for the sliding block that filter element is equipped in Fig. 7；
Fig. 9 is the structural schematic diagram of valve base part shown in Fig. 2；
Figure 10 is the vertical view of valve base part shown in Fig. 9；
Figure 11 be Figure 10 in C-C to diagrammatic cross-section；
Figure 12 is the structural schematic diagram of rotor part shown in Fig. 2；
Figure 13 is the diagrammatic cross-section of rotor part shown in Fig. 2.
In Fig. 1：
Magnet rotor 1 ', needle screw rod 2 ', fixing nut 3 ', valve port 4 ', needle 5 '；
In Fig. 2-13：
Rotor part 10, magnet 11, canister portion 111, partition board portion 112, balance hole 1121, key portion 113, the second retainer 114,
Shaft 12, axle sleeve 121；
Valve base part 20, fulcrum bearing 21, valve body 22, import 221, outlet 222, valve port 223, communication port 224, axis hole
225；
Sliding block 30, runner hole 31 (31a, 31b, 31c, 31d), cavity 32, supporting table 33, keyway 34, inner groovy 35 pre-tighten
Spring 36, open slot 37；
Filter element 40；
First retainer 50, latch 51；
Shell 60, inlet tube 70, outlet 80, valve chamber R1, accommodating chamber R2.
Specific implementation mode
Core of the invention is to provide a kind of valve gear, the flow deviation of the valve gear can control smaller range with
It is interior, it disclosure satisfy that the flow accuracy demand for control of refrigerator and similar small refrigeration systems, and have the function of valve port standard-sized sheet, it can
It realizes evaporator surface defrosting and increases humidity in refrigerator, improve the fresh-keeping effect of refrigerator.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Referring to FIG. 2, Fig. 2 is a kind of diagrammatic cross-section of specific embodiment of valve gear provided by the present invention.
In the embodiment, valve gear includes driving part and valve base part 20, wherein valve base part 20 have import 221,
Outlet 222 and the valve port 223 being connected to outlet 222, import 221 are connected to the valve chamber R1 of valve gear.
The valve gear further includes the sliding block 30 supported by valve base part 20, the top surface of the bottom surface and valve base part 20 of sliding block 30
Fitting.
The sliding block 30, which has, rotates around it 31, one, the multiple runner holes circumferentially in center open slot 37 and closure part；
Wherein, the aperture in each runner hole 31 is not exactly the same and latus rectum of respectively less than valve port 223, the circulation area of open slot 37 are not less than
The circulation area of valve port 223；Each runner hole 31 and open slot 37 are connected to valve chamber R1.
Driving part can drive 30 opposite valve seat component 20 of sliding block to rotate, so that runner hole 31 or open slot 37 and valve port
223 connections to be connected to import 221 and outlet 222, or make closure part close port 223, to separate import 221 and go out
Mouth 222.
It is appreciated that distance of the runner hole 31 away from 30 center of rotation of sliding block, runner hole 31 when sliding block 30 should be made to rotate
It can be connected to valve port 223.
As above, which has abandoned the needle structure of electronic expansion valve for air conditioner in the prior art, will be used to adjust stream
The component of amount realized using slide block structure, 31, one, circumferentially arranged multiple runner holes open slot 37 and envelope on sliding block 30
Stifled portion, wherein each runner hole 31 and open slot 37 are connected to valve chamber R1, and the import 221 of valve base part 20 is also connected to valve chamber R1,
Drive the rotation of sliding block 30 that runner hole 31 or open slot 37 is made to be connected to the valve port 223 of valve base part 20 by driving part, from
And so that import 221 222 be connected to outlet, or make closure part close port 223, to make import 221 with export 222 by every
It is disconnected, in this way, realizing the connection or partition of import 221 and outlet 222 by the rotation of 30 opposite valve seat component 20 of sliding block, make valve
Device has the function of Close All, and the case where be not in stuck failure when fully closed.
In addition, the aperture in each runner hole 31 is not exactly the same and latus rectum of respectively less than valve port 223, in this way, passing through sliding block 30
Rotation, is made runner hole 31 different on sliding block 30 be connected to valve port 223, the adjusting of flow is realized with this, because runner hole 31 is easy
In processing and accuracy error can control in smaller range, can according to system requirements be arranged it is smaller, so passing through cunning
The setting in 30 upper runner hole 31 of block is easy to control flow deviation in smaller range, such as within 5%, disclosure satisfy that refrigerator and
The flow control accuracy requirement of similar small refrigeration systems；Meanwhile the circulation area of open slot 37 is not less than the circulation of valve port 223
Area, when open slot 37 is connected to valve port 223, valve gear has the function of standard-sized sheet, and throttle degree is relatively small, so as to reality
Humidity in existing evaporator surface defrosting and increase refrigerator, improves fridge freshness retaining effect.
Please also refer to Fig. 3-6, Fig. 3 is a kind of structural schematic diagram of angle of sliding block shown in Fig. 2；Fig. 4 is shown in Fig. 2
The structural schematic diagram of sliding block another kind angle；Fig. 5 is the vertical view of sliding block shown in Fig. 2；Fig. 6 is cuing open for sliding block shown in Fig. 2
Face schematic diagram.
In specific embodiment, multiple runner holes 31 are circumferentially arranged around the center of rotation of sliding block 30 in arcuation, open slot 37
A runner hole 31 close to outer end is arranged, in this way, the position between open slot 37 and the runner hole 31 of another outer end forms sliding block
30 closure part.
In scheme shown in Fig. 4 and Fig. 5, sliding block 30 is specifically set there are four runner hole 31, with visual angle shown in Fig. 5, along suitable
Clockwise, four runner holes 31 are followed successively by 31a, 31b, 31c and 31d, and open slot 37 is arranged close to runner hole 31d, sliding block 30
Circumferential position between upper open slot 37 and runner hole 31a is closure part.
In illustrated scheme, the aperture of four runner holes 31a, 31b, 31c and 31d are incremented by successively, and two neighboring runner hole
Angle between 31 is equal, that is to say, that on the arc section in arrangement runner hole 31, multiple runner holes 31 are uniformly arranged；Specifically
Ground, angle of the angle also between adjacent two runner hole 31 between the center and runner hole 31d of open slot 37 are equal；It sets in this way
After meter, sliding block 30 often turns over identical angle, i.e., is once adjusted to flow, convenient for the operation to valve gear.
As above, the aperture of the structure design in multiple runner holes 31, number and each runner hole 31 to runner hole 31 is easy control
System, convenient for controlling flow, to meet the demand for control of refrigerator and similar small refrigeration systems.Such as a kind of specific embodiment
In, the aperture of runner hole 31a, 31b, 31c and 31d are set as 0.15mm, 0.18mm, 0.21mm and 0.24mm successively.
It is appreciated that open slot 37 is set to the bottom surface of sliding block 30, when sliding block 30 is bonded with valve base part 20, in open slot
37 position, there are gap between sliding block 30 and valve base part 20, the size in the gap is the depth of open slot 37, works as sliding block
30 turn to open slot 37 and 223 position of valve port to it is corresponding when valve chamber R1 in refrigerant can enter open slot 37 by the gap,
Then outlet 222 is flowed by valve port 223.When specific setting, to realize that the defrosting requirement of refrigerator, the latus rectum of valve port 223 are larger
Setting, so as to reduce restriction effect as far as possible, usually not less than 1.6mm settings are correspondingly arranged the circulation area of open slot 37.
It is appreciated that in practice, when arrangement, the aperture in each runner hole 31 can be irregular, in addition, in arrangement runner hole 31
Arc section on, multiple runner holes 31 can arrange uneven.Only in contrast, rule, uniformly arrangement as illustrated, more
Convenient for the control to product.
Further, with reference to figure 4, multiple inner groovies 35 are offered in the bottom surface of sliding block 30, respectively with multiple runner holes 31
Position correspond to, and the size of each inner groovy 35 is all higher than corresponding runner hole 31.
As above after design, when 30 opposite valve seat component 20 of sliding block rotates, end and the valve base part in runner hole 31 are avoided
20 direct frictions, rotation abrasion that can be between 20 top surface of 30 bottom surface of anti-limited slip block and valve base part block runner hole 31, can be true
Protect the reliability of product flow control.
Specifically, it is easy to process, the size of each inner groovy 35 can be unified, and in scheme shown in Fig. 4, each inner groovy 35 is
The consistent counter bore structure in aperture.It should be appreciated that the shape of inner groovy 35 is unlimited, as long as end and the valve in runner hole 31 can be avoided
20 direct friction of base member.
Please also refer to Fig. 7-8, Fig. 7 is the vertical view for the sliding block that filter element is equipped in specific embodiment；Fig. 8 is figure
The diagrammatic cross-section of the sliding block of filter element is equipped in 7.
The valve gear is additionally provided with filter element 40, the refrigerant for filtering the runner hole 31 for flowing through sliding block 30, to avoid stream
Road hole 31 influences the performance of product by foreign matters from being blocked.
Wherein, the filter capacity of filter element 40 can according to the aperture in runner hole 31 in conjunction with other use demands come really
It is fixed, by taking the specific aperture value in aforementioned each runner hole 31 as an example, it is known that the pore diameter range in each runner hole 31 0.1mm~0.3mm it
Between, so in application, filter element 40 can at least filter out the impurity and foreign matter more than 0.1mm.When specific setting, filter house
The mesh number of part 40 is more than 100 mesh, to meet basic use demand.
Specifically, filter element 40 can be sintered by tin bronze ball or stainless steel ball and be formed, can also be by multilayer stainless steel
Screen cloth is made.
Obviously, for the flow direction of refrigerant, the upstream position in the runner hole 31 of sliding block 30 should be arranged in filter element 40.
In specific scheme, the top of sliding block 30 is equipped with cavity 32, by filter element 40 in the cavity 32, and mistake
Filtering component 40 and the bottom wall of the cavity 32 has preset distance, in this way, forming accommodating chamber between filter element 40 and cavity 32
R2, filtered refrigerant flow into runner hole 31 by accommodating chamber R2, it is clear that each runner hole 31 should connect with accommodating chamber R2
It is logical.
Preset distance between 32 bottom wall of filter element 40 and cavity can be arranged as needed.
More specifically, the medium position in 32 bottom of cavity is equipped with the supporting table 33 of support filter element 40, Fig. 3 can refer to
Understood with Fig. 6 so that it is convenient to the positioning in cavity 32 of filter element 40.
As shown in figure 8, in this way after setting, aforementioned accommodating chamber R2 is specially the side wall of the bottom wall of filter element 40, cavity 32
And the annular chamber that bottom wall and the periphery wall of supporting table 33 are enclosed.
It should be pointed out that in the program, by filter element 40 in sliding block 30, but sliding block 30 is in opposite valve seat
When component 20 rotates, filter element 40 can rotate therewith, and can not also rotate, this can't influence filter element 40
Filtration.
It is provided herein to understand together with reference to figure 9-11 with the matched valve base part of sliding block, wherein Fig. 9 is in Fig. 2
The structural schematic diagram of shown valve base part；Figure 10 is the vertical view of valve base part shown in Fig. 9；Figure 11 be Figure 10 in C-C to cut open
Face schematic diagram.
In the embodiment, the bottom of valve base part 20 offer import 221 and outlet 222, respectively with inlet tube 70, go out
Mouth pipe 80 connects.
Valve port 223 is opened in the top of valve base part 20, is connected to outlet 222, is offered in the side of valve base part 20
The communication port 224 being connected to import 221, and the communication port 224 is connected to valve chamber R1.
It is appreciated that import 221 is not connected to directly with the runner hole 31 of sliding block 30 or open slot 37.
It should be appreciated that after valve base part 20 is as above arranged, the position in the runner hole 31 of sliding block 30 should be with 223 position of valve port
Corresponding, so that in 30 rotation process of sliding block, runner hole 31 can be connected to valve port 223, be then connected to outlet 222.
In this way, refrigerant is flowed into from inlet tube 70, import 221, communication port 224 through valve base part 20 flow into valve chamber R1, then
Runner hole 31 or open slot 37 are flowed by filter element 40, is flowed out from outlet 80 through valve port 223, outlet 222.
In specific scheme, valve base part 20 includes fulcrum bearing 21 and fixed valve body 22 thereon, and the two fission is set
It sets, can fix by welding, it is not only simple but also reliable.
Valve port 223 and communication port 224 are opened on valve body 22, that is to say, that sliding block 30 is directly pasted with valve body 22
It closes, opposite valve seat body 22 rotates.
Specifically, import 221 and outlet 222 can be opened on valve body 22, setting and valve seat in fulcrum bearing 21
Valve body 22 is embedded in the through-hole of fulcrum bearing 21 by 22 compatible through-hole of body admittedly.
Certainly, import 221 and outlet 222 can be opened in fulcrum bearing 21, and valve body 22 is fixed on fulcrum bearing 21
Top surface, and keep its valve port 223 and communication port 224 corresponding with outlet 222 and 221 position of import respectively.
Certainly, import 221 and outlet 222 a part of can be also arranged on valve body 22, and another part is arranged in fulcrum bearing
On 21.
In addition, valve base part 20 can also be set as integral structure, in contrast, separate structure it is easy to process and reduce at
This.
It is the structural schematic diagram of rotor part shown in Fig. 2 please also refer to Figure 12-13, Figure 12；Figure 13 is shown in Fig. 2
The diagrammatic cross-section of rotor part.
In the embodiment, the driving part that driving sliding block 30 rotates is motor, specifically includes rotor part 10 and coil part
Part.
Wherein, rotor part 10 includes magnet 11 and the shaft 12 for being plugged in magnet 11, and the lower end of shaft 12 is sequentially inserted into
Filter element 40 and sliding block 30 when work, drive rotor part 10 to rotate by external coil component, and band movable slider 30 is opposite
Valve body 22 rotates.
It, can be relatively solid with shaft 12 by sliding block 30 in order to be rotated together with movable slider 30 when rotor part 10 being enable to rotate
It is fixed, for example sliding block 30 is made to be combined into interference fit with matching for shaft 12.
Certainly, sliding block 30 and magnet 11 can be also relatively fixed, in the present embodiment, is arranged between magnet 11 and sliding block 30
There is clamping structure, so that sliding block 30 can be rotated together with magnet 11.
Specifically, the lower end of magnet 11 has the key portion 113 of protrusion, is provided on sliding block 30 and coordinates with key portion 113
Keyway 34 makes sliding block 30 be relatively fixed with magnet 11 by being fixed for key portion 113 and keyway 34.In addition, the key of magnet 11
113 inlay card of portion plays the role of sliding block 30 being pressed in valve body 22, it can be ensured that sliding block 30 to a certain extent in keyway 34
It is bonded with valve body 22, prevents refrigerant from being flowed into from the joint place of the two.
The valve gear further includes the shell 60 for being coated at magnet 11, and bottom and the valve base part 20 of shell 60 are fixed, specifically
Into the embodiment, the bottom of shell 60 is fixed with the fulcrum bearing 21 of valve base part 20.
Specifically, the top of fulcrum bearing 21 has step surface upward, in order to the positioning with shell 60.
In specific scheme, magnet 11 includes canister portion 111 and partition board portion 112, wherein partition board portion 112 will be in canister portion 111
Chamber is divided into epicoele and cavity of resorption, is fixed in this way, rotor 12 is specifically inserted with partition board portion 112, the top of rotor 12 can connecting bushing
121, axle sleeve 121 and the inner roof wall of shell 60 coordinate.
Wherein, the peripheral wall of 11 cavity of resorption of magnet, shell 60 and fulcrum bearing 21 are enclosed valve chamber R1, that is to say, that the program
In, the cavity of resorption of magnet 11 is a part of valve chamber R1, can shorten the axial dimension of valve gear in this way, is conducive to its miniaturization.
In specific scheme, preloading spring 36 is equipped between partition board portion 112 and sliding block 30, so that sliding block 30 is tightly attached to valve
The top surface of pedestal 22.
In scheme shown in Fig. 1, sliding block 30 be equipped with filter element 40 in the case of, preloading spring 36 really and filter house
Part 40 abuts.
In specific scheme, it is additionally provided with more than one balance hole 1121 in the partition board portion 112 of magnet 11, the balance hole
1121 connection epicoeles and cavity of resorption avoid about 11 vibration of magnet to keep the pressure balance of 11 upper and lower chamber of magnet.
In specific scheme, to ensure that the center of rotation of 30 opposite valve seat component 20 of sliding block does not change, to ensure to slide
In 30 rotation process of block, each runner hole 31 can be connected to outlet 222, and the lower end of shaft 12 is also plugged in valve base part 20,
To ensure the concentricity of 20 three of rotor part 10, sliding block 30 and valve base part.
Specifically, valve body 22 is equipped with the axis hole 225 coordinated with shaft 12, it is clear that shaft 12 is matched with 225 gap of axis hole
It closes, so that shaft 12 can be rotated relative to valve base part 20.
The valve gear further includes stop component, to limit the initial relative position of sliding block 30 and valve base part 20, is convenient for
The determination of benchmark when the debugging and application of product.
In specific scheme, stop component includes being fixedly arranged on the first retainer 50 of valve base part 20 and being set to driving portion
Second retainer 114 of part, driving part can drive the second retainer 114 to be rotated synchronously with sliding block 30；And it is configured to：
Second retainer 114 is in the side of the first retainer 50 and abuts state, closure part close port 223；Second
During retainer 114 is rotated with sliding block 30, each runner hole 31 and open slot 37 are sequentially connected to valve port 223, and along rotation
Direction, in the state that open slot 37 is connected to valve port 223, the second retainer 114 is abutted with the other side of the first retainer 50.
In specific scheme, the first retainer 50 is elastic component, in this way, the second retainer 114 with its against when there is bullet
Property buffering, avoid that abrasion is caused after longtime running to cause position configuration inaccurate.
Specifically, the first retainer 50 can be rubber, be fixed in fulcrum bearing 21 by latch 51, wherein stop
The top of pin 51 is provided with anti-dropout boss, in case the first retainer 50 is deviate from.
Valve gear provided by the present invention is described in detail above.Specific case used herein is to the present invention
Principle and embodiment be expounded, the explanation of above example is only intended to help understand the present invention method and its core
Thought is thought.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention,
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection domain of the claims in the present invention
It is interior.
Claims (13)
1. valve gear, including driving part and valve base part (20), which is characterized in that the valve base part (20) has import
(221), the valve port (223) for exporting (222) and being connected to the outlet (222), the import (221) are connected to valve chamber (R1)；
Further include the sliding block (30) supported by the valve base part (20), bottom surface and the valve base part of the sliding block (30)
(20) top surface fitting；
The sliding block (30) has multiple runner holes (31), an open slot (37) and the closure of the center that rotates around it circumferentially
Portion；The aperture of each runner hole (31) is not exactly the same and the latus rectum of respectively less than described valve port (223), the open slot (37)
Circulation area be not less than the circulation area of the valve port (223), each runner hole (31) and the open slot (37) with
Valve chamber (R1) connection；
The driving part can drive the sliding block (30) to be rotated relative to the valve base part (20), so that the runner hole
(31) or the open slot (37) is connected to the valve port (223), or the closure part is made to close the valve port (223).
2. valve gear according to claim 1, which is characterized in that the driving part includes rotor part (10), described
Rotor part (10) includes magnet (11) and is plugged in the shaft (12) of the magnet (11), and the sliding block (30) is sheathed on described
Shaft (12), the rotor part (10) can drive the sliding block (30) to rotate when rotating.
3. valve gear according to claim 2, which is characterized in that also set between the magnet (11) and the sliding block (30)
There is clamping structure.
4. valve gear according to claim 3, which is characterized in that the lower end of the magnet (11) has the key portion of protrusion
(113), the sliding block (30) has the keyway (34) coordinated with the key portion (113), the key portion (113) and the keyway
(34) clamping structure is formed.
5. valve gear according to claim 2, which is characterized in that further include the shell for being coated at the magnet (11)
(60), the bottom of the shell (60) and the valve base part (20) are fixed；The magnet (11) includes canister portion (111) and partition board
The inner cavity of cartridge (111) is divided into epicoele and cavity of resorption by portion (112), the partition board portion (112), wherein the cavity of resorption
Peripheral wall, the shell (60) and the valve base part (20) are enclosed the valve chamber (R1).
6. valve gear according to claim 5, which is characterized in that between the sliding block (30) and the partition board portion (112)
It is additionally provided with preloading spring (36), so that the sliding block (30) is tightly attached to the top surface of the valve base part (20).
7. valve gear according to claim 5, which is characterized in that the partition board portion (112) has more than one balance
Hole (1121), the balance hole (1121) are connected to the epicoele and the cavity of resorption.
8. valve gear according to claim 2, which is characterized in that the shaft (12) is also plugged in the valve base part
(20), and the two clearance fit, so that the shaft (12) can be rotated relative to the valve base part (20).
9. according to claim 1-8 any one of them valve gears, which is characterized in that further include stop component, to limit
State the initial relative position of sliding block (30) and the valve base part (20).
10. valve gear according to claim 9, which is characterized in that the stop component includes being fixedly arranged on the seat portion
The first retainer (50) of part (20) and the second retainer (114) for being set to the driving part, the driving part can
Second retainer (114) is driven to be rotated synchronously with the sliding block (30)；And it is configured to：
Second retainer (114) is in the state that abuts with the side of first retainer (50), and the closure part is closed
The valve port (223)；During second retainer (114) rotates with the sliding block (30), multiple runner holes
(31), the open slot (37) is connected to the valve port (223) successively, and in rotational direction, the open slot (37) with it is described
In the state of valve port (223) connection, second retainer (114) abuts with the other side of first retainer (50).
11. valve gear according to claim 10, which is characterized in that first retainer (50) is elastic component.
12. according to claim 1-8 any one of them valve gears, which is characterized in that the bottom surface of the sliding block (30) has more
A inner groovy (35), it is corresponding with multiple positions of runner hole (31) respectively, and the size of each inner groovy (35) is big
In the corresponding runner hole (31).
13. according to claim 1-8 any one of them valve gears, which is characterized in that the latus rectum of the valve port (223) is more than
It is chosen between 0.1mm~0.3mm in the aperture of 1.6mm, each runner hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292781.XA CN108799528B (en) | 2017-04-28 | 2017-04-28 | Valve device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292781.XA CN108799528B (en) | 2017-04-28 | 2017-04-28 | Valve device |
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| CN108799528A true CN108799528A (en) | 2018-11-13 |
| CN108799528B CN108799528B (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710292781.XA Active CN108799528B (en) | 2017-04-28 | 2017-04-28 | Valve device |
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| CN112576797A (en) * | 2019-09-30 | 2021-03-30 | 浙江三花智能控制股份有限公司 | Electric valve |
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| CN108799528B (en) | 2020-01-03 |
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