CN110375081A - Valve gear and its valve block - Google Patents
Valve gear and its valve block Download PDFInfo
- Publication number
- CN110375081A CN110375081A CN201810332388.3A CN201810332388A CN110375081A CN 110375081 A CN110375081 A CN 110375081A CN 201810332388 A CN201810332388 A CN 201810332388A CN 110375081 A CN110375081 A CN 110375081A
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- China
- Prior art keywords
- valve
- valve block
- plate
- throttle orifice
- upper body
- 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.)
- Granted
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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
- 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
- F16K3/04—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 with pivoted closure members
- F16K3/06—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 with pivoted closure members in the form of closure plates arranged between supply and discharge passages
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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
- 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
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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
- 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
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- 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
- F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
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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
- 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
- F16K31/0644—One-way valve
- F16K31/0668—Sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a kind of valve gear and its valve block, the valve block can be rotated relative to the valve base part of the valve gear;The valve block includes plate-like portion, the lower body positioned at the upper body of the plate-like portion top surface and positioned at the plate-like portion bottom surface, and three is fixed to be integrated;The plate-like portion throttle orifice not exactly the same with the multiple apertures of the center of rotation around the valve block circumferentially;The upper body has lumen therethrough, and each throttle orifice is directly connected to the lumen therethrough;The lower body have with multiple throttling hole sites multiple intercommunicating pores correspondingly, and the size of each intercommunicating pore is all larger than the throttle orifice of corresponding position;The upper body and the lower body are integrally formed at the plate-like portion by way of injection molding.The structure of the valve block is conducive to process, while can ensure that the precision of throttle orifice.
Description
Technical field
The present invention relates to refrigeration technology fields, more particularly to a kind of valve gear and its valve block.
Background technique
For small refrigeration systems, capillary-compensated is mostly used, because capillary does not have the function of flow adjusting, in difference
Under environmental condition, refrigeration system cannot reach optimal operating condition, be affected to efficiency.
For the growth requirement for adapting to small refrigeration systems, existing improve on dynamoelectric switching valve can be smaller
Flow is adjusted in deviation range, and usually each throttle orifice for adjusting flow is arranged in valve block.
Wherein, valve block generallys use engineering plastics and is made, and throttle orifice aperture is small, is not suitable for direct injection molding, needs
Will by the way of machining, and in actual use, valve block can opposite valve seat rotation, so to guarantee the low friction of valve block
The performances such as coefficient, low abrasion, self-lubricating also need to increase in engineering plastics the fillers such as glass, carbon fiber and graphite, and material
In if will lead to can be containing Filamentous residual fiber left in the throttle orifice of processing, while throttling containing the fillers such as carbon fiber
Easy-clear does not influence the burr that hole port is generated relative to valve seat friction due to valve block to influence the precision of throttle orifice yet
The flow degree of regulation of valve member.
Therefore, the structure of valve block how is improved, in order to the processing of throttle orifice, while ensuring the precision of throttle orifice, is this
The current technical issues that need to address of field technical staff.
Summary of the invention
The object of the present invention is to provide a kind of valve gear and its valve block, structure design the adding convenient for throttle orifice of the valve block
Work, while ensuring the precision of throttle orifice.
In order to solve the above technical problems, the present invention provides a kind of valve block, it is used for valve gear, the valve block can be relatively described
The valve base part of valve gear rotates;The valve block includes plate-like portion and upper body and lower body, the upper body and it is described under
Body portion is integrally formed at the plate-like portion by way of injection molding;
The plate-like portion throttling not exactly the same with the multiple apertures of the center of rotation around the valve block circumferentially
Hole;The upper body has lumen therethrough, and each throttle orifice is directly connected to the lumen therethrough;
The lower body has and the multiple throttling hole site multiple intercommunicating pores, and each intercommunicating pore correspondingly
Size be all larger than the throttle orifice of corresponding position.
The valve block of valve gear provided by the invention, valve block include plate-like portion and upper body, lower body, upper body and lower body
The plate-like portion is integrally formed at by way of injection molding, wherein throttle orifice is opened in plate-like portion, plate-like portion can be by being convenient for
Machining material is made, so being more advantageous to the processing of the throttle orifice of micro-aperture relative to engineering plastics;In plate-like portion
The upper body and lower body that top and bottom setting engineering plastics are molded, to guarantee the wearability of valve block, because of throttle orifice
It is formed in plate-like portion, so the lumen therethrough for the upper body being connected to throttle orifice and the intercommunicating pore for the lower body being connected to throttle orifice
Size larger can be arranged, and can avoid forming residual in throttle orifice and influencing the precision of the throttle orifice of valve block, at the same intercommunicating pore by
It is also not easy to influence the precision of throttle orifice in the burr that valve block is generated relative to valve seat friction, to can ensure that the throttle orifice of valve block
Precision.
Detailed description of the invention
Fig. 1 is a kind of diagrammatic cross-section of specific embodiment of valve gear provided by the present invention;
Fig. 2 is a kind of structural schematic diagram of angle of valve block that filter element is equipped with shown in Fig. 1;
Fig. 3 is the structural schematic diagram that the valve block another kind angle of filter element is equipped with shown in Fig. 1;
Fig. 4 is the top view that the valve block of filter element is equipped with shown in Fig. 1;
Fig. 5 be Fig. 4 in A-A to diagrammatic cross-section;
Fig. 6 is the structural schematic diagram of the plate-like portion of valve block in specific embodiment;
Fig. 7 is the structural schematic diagram of valve base part shown in Fig. 1;
Fig. 8 is the top view of valve base part shown in Fig. 7;
Fig. 9 is the diagrammatic cross-section of B-B direction in Fig. 8.
Wherein, one-to-one relationship of the Fig. 1 into Fig. 9 between component names and appended drawing reference is as follows:
Rotor part 10, magnet 11, shaft 12;
Valve base part 20, fulcrum bearing 21, valve body 22, import 221, outlet 222, valve port 223, communication port 224, axis hole
225;
Valve block 30, plate-like portion 31, throttle orifice 311, port 312, upper body 32, lumen therethrough 321, lower body 33, intercommunicating pore
331, sleeve part 34, keyway 35;
Filter element 40;
Shell 60, inlet tube 70, outlet 80, valve chamber R1, accommodating chamber R2.
Specific embodiment
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.
It is succinct with description for ease of understanding, illustrate that beneficial effect is not repeated together below in conjunction with valve gear and its valve block
It discusses.
Referring to FIG. 1, Fig. 1 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 has import 221
With outlet 222, import 221 is connected to the valve chamber R1 of valve gear.
The valve gear further includes the valve block 30 supported by valve base part 20, the bottom surface of valve block 30 and the top surface of valve base part 20
Fitting.
The valve block 30, which has, rotates around it the multiple throttle orifices 311 of center circumferentially, wherein circumferentially, each throttle orifice
311 aperture is not exactly the same, and throttle orifice 311 is connected to valve chamber R1.
Driving part can drive 30 opposite valve seat component 20 of valve block to rotate, so that throttle orifice 311 is connected to outlet 222,
To be connected to import 221 and outlet 222, or the part of not set throttle orifice 311 in valve block 30 is made to close outlet 222, thus
Separate import 221 and outlet 222;Hereinafter for purposes of illustration only, the part of throttle orifice 311 not set in valve block 30 is referred to as to seal
Stifled portion.
It is appreciated that distance of the throttle orifice 311 away from 30 center of rotation of valve block, throttle orifice when valve block 30 should be made to rotate
311 can be connected to outlet 222.
The valve gear realizes the tune of cold medium flux using 30 opposite valve seat component 20 of the valve block rotation with throttle orifice 311
Section, wherein the throttle orifice 311 of valve block 30 is connected to valve chamber R1, and the import 221 of valve base part 20 is also connected to valve chamber R1, is passed through
Driving part drive valve block 30 rotation be connected to throttle orifice 311 with the outlet 222 of valve base part 20, thus make import 221 and
222 connection of outlet, or closure part is made to close outlet 222, to make import 221 be separated with outlet 222, in this way, passing through valve block
The rotation of 30 opposite valve seat components 20 has valve gear and all closes the connection or partition realizing import 221 with export 222
Function, and the case where be not in stuck failure in complete close.
In addition, circumferentially, the aperture of throttle orifice 311 is not quite identical, in this way, making different sections by rotation valve block 30
Discharge orifice 311 is connected to outlet 222, and the adjusting of cold medium flux can be realized.
The structure design of the valve gear can make the smaller setting in the aperture of throttle orifice 311, to meet small refrigeration systems such as
The flow control accuracy requirement of refrigerator, therefore, the machining accuracy of the throttle orifice 311 of valve block 30 are to influence valve gear flow to adjust essence
The key factor of degree.
The specific structure of valve block 30 in the present invention is described in detail below.
Please also refer to Fig. 2 to Fig. 5, Fig. 2 shows to be equipped with a kind of structure of angle of valve block of filter element shown in Fig. 1
It is intended to;Fig. 3 is the structural schematic diagram that the valve block another kind angle of filter element is equipped with shown in Fig. 1;Fig. 4 is shown in Fig. 1
It is equipped with the top view of the valve block of filter element;Fig. 5 be Fig. 4 in A-A to diagrammatic cross-section.
In the embodiment, valve block 30 includes plate-like portion 31, positioned at the upper body 32 of 31 top surface of plate-like portion and positioned at plate-like portion
The lower body 33 of 31 bottom surfaces, three is fixed to be integrated.
It should be noted that the upper and lower, top and bottom of the noun of locality etc. being referred to herein is to be located at figure with components shown in Fig. 1
In and the mutual positional relationship of components come what is defined, only for the purpose of expressing the technical solution clearly and conveniently, should manage
Solution, the noun of locality employed herein should not limit the protection scope of this patent.
Wherein, the throttling not exactly the same with the multiple apertures of the center of rotation around valve block 30 circumferentially of plate-like portion 31
Hole 311;The middle part of upper body 32 has lumen therethrough 321, and each throttle orifice 311 is directly connected to lumen therethrough 321;Lower body 33 has
With multiple 311 positions of throttle orifice multiple intercommunicating pores 331 correspondingly, and the size of each intercommunicating pore 331 is all larger than corresponding position
Throttle orifice 311.
In this way, plate-like portion 31 can be made according to needed for structure of different materials from upper body 32, lower body 33, than
Such as, plate-like portion 31 is made of cutting material easy to process, and upper body 32 and lower body 33 are that work is formed at plastic injection.
As above after design, the plane that valve block 30 is bonded with the top surface of valve base part 20 is the bottom surface of lower body 33, upper body
32 lumen therethrough 321 is directly connected to valve chamber R1;It is appreciated that the throttle orifice 311 set on plate-like portion 31 passes through in the embodiment
Lumen therethrough 321 is connected to valve chamber R1, can be connected to outlet 222 by the intercommunicating pore 331 of corresponding position.
The valve block 30 that the embodiment provides is made of two kinds of materials, wherein throttle orifice 311 is opened in plate-like portion 31, because
Plate-like portion 31 is made of cutting material easy to process, so being more advantageous to micro-aperture (usually less than relative to engineering plastics
The processing of throttle orifice 311 0.5mm), upper body 32 and lower body 33 are integrally formed at plate-like portion 31 by way of injection molding, use
To guarantee the wearability of valve block 30, because throttle orifice 311 is formed in plate-like portion 31, so the upper body 32 being connected to throttle orifice 311
Lumen therethrough 321 and the size of intercommunicating pore 331 of the lower body 33 being connected to throttle orifice 311 larger can be arranged, and can avoid
In throttle orifice 311 or port forms residual, to can ensure that the machining accuracy of the throttle orifice 311 of valve block 30, improves valve gear
Flow degree of regulation.
In the embodiment, valve gear is additionally provided with filter element 40, for filter flow through valve block 30 throttle orifice 311 it is cold
Matchmaker influences the service performance of product to avoid throttle orifice 311 by foreign matters from being blocked.
Wherein, the filter capacity of filter element 40 can according to the aperture of throttle orifice 311 in conjunction with other use demands come really
It is fixed, by taking the specific aperture value of aforementioned each throttle orifice 311 as an example, it is known that the pore diameter range of each throttle orifice 311 is in 0.1mm~0.3mm
Between, so in application, filter element 40 can at least filter out the impurity and foreign matter greater than 0.1mm.When specific setting, filtering
The mesh number of component 40 is greater 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.
It is appreciated that the upstream of the throttle orifice 311 of valve block 30 should be arranged in filter element 40 for the flow direction of refrigerant
Position;In specific scheme, filter element 40 is in the lumen therethrough 321 of the upper body 32 of valve block 30, and filter element 40
There is preset distance with the top surface of plate-like portion 31, in this way, filter element 40, plate-like portion 31 and upper body 32 are enclosed accommodating chamber
R2, the refrigerant for flowing into valve chamber R1 flow into accommodating chamber R2 after the filtering of filter element 40, then through throttle orifice 311 and its corresponding company
Through-hole 331 flows out.
When actual setting, the preset distance between 31 top surface of filter element 40 and plate-like portion be can according to need to be arranged.
In specific scheme, plate-like portion 31 has the middle through-hole being connected to lumen therethrough 321, and valve block 30 further includes being embedded in admittedly
Sleeve part 34 in the middle through-hole of plate-like portion 31, which protrudes from the top surface of plate-like portion 31, to support filter house
Part 40 also facilitates the fixation of filter element 40 Yu 30 relative position of valve block.Obviously, sleeve part 34 protrudes from 31 top surface of plate-like portion
Height is the distance between filter element 40 and 31 top surface of plate-like portion, i.e., aforementioned preset distance.
In specific scheme, upper body 32, lower body 33 and sleeve part 34 are integrally formed at plate by way of injection molding
Portion 31, it can be understood as integrated injection molding forms upper body 32, lower body 33 and sleeve part 34 on the basis of plate-like portion 31.
Please also refer to Fig. 6, Fig. 6 is the structural schematic diagram of the plate-like portion of valve block in specific embodiment, is shown in the figure
The structure of undressed throttle orifice.
Specifically, multiple ports 312, upper body 32 and lower body 33 is opened up in the periphery of plate-like portion 31 to be formed by injection molding
Integral structure is formed in the transition part of port 312, the fixation that can also improve upper body 32, lower body 33 and plate-like portion 31 in this way can
By property.
More specifically, multiple ports 312 are arranged along the periphery of plate-like portion 31.
When actual setting, port 312 can also be opened in the other positions of plate-like portion 31, such as inner circumferential, as long as nonintervention
Throttle orifice 311.
In specific scheme, plate-like portion 31 other metal materials can be made of brass or aluminium etc., and the two is easy to process
Cutting material, be conducive to the raising of 31 processing technology of plate-like portion.Certainly, plate-like portion 31 also can be selected other and be convenient in practice
The cutting material of processing, it is possible to understand that preferred free machining material, to improve processing technology.
Upper body 32 and lower body 33 concretely PPS engineering plastics or PEEK engineering plastics, it can be ensured that valve block 30 is low
Coefficient of friction, low abrasion.
Valve block 30 in the embodiment can be made up of following manner: plate-like portion 31 is made by way of first using machining
Ontology, throttle orifice 311 is had an impact when to avoid subsequent injection molding, at this point, the ontology of plate-like portion 31 be no throttle orifice 311
Structure;It is integrally formed aforementioned upper body 32, lower body 33 and sleeve part 34 on plate-like portion 31 by way of injection molding again, shows
Lumen therethrough 321, intercommunicating pore 331 are so formed when injection molding;Finally processing forms throttle orifice 311 on the ontology of plate-like portion 31.
In specific scheme, each throttle orifice 311 of valve block 30 rotates around it center arrangement in arcuation, in this way, being located at outer end
Two throttle orifices 311 between position can form the closure part of aforementioned valve block 30.
Specifically, circumferentially, the aperture of each throttle orifice 311 can be incremented by successively or successively decreases, and between two adjacent sections discharge orifice 311
Angle it is equal, that is to say, that in the segmental arc of arrangement throttle orifice 311, the uniformly arrangement of multiple throttle orifices 311.After designing in this way,
Valve block 30 often turns over identical angle, i.e., is once adjusted to flow, convenient for the operation to valve gear.
Certainly, when arranging in practice, the aperture of each throttle orifice 311 can be irregular.
Design in lower body 33 corresponding to the intercommunicating pore 331 of throttle orifice 311, is on the one hand to that throttle orifice can be connected to
311 are greater than the design of throttle orifice 311, not only help to improve Shooting Technique, but also can with outlet 222, another aspect, size
The abrasion generated in 30 rotation process of valve block with the friction of valve base part 20 is avoided to block throttle orifice 311, to ensure product flow control
The reliability of system.
To be easy to process, the size of each intercommunicating pore 331 of lower body 33 can be unified to be arranged.
It is the structural schematic diagram of valve base part shown in Fig. 1 please also refer to Fig. 7 to Fig. 9, Fig. 7;Fig. 8 is valve shown in Fig. 7
The top view of base member;Fig. 9 is the diagrammatic cross-section of B-B direction in Fig. 8.
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.
The valve port 223 being connected to outlet 222 is offered at the top of valve base part 20, is opened up in the side of valve base part 20
There is 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 throttle orifice 311 of valve block 30.
It should be appreciated that the position of the throttle orifice 311 of valve block 30 should be 223 with valve port after valve base part 20 is as above arranged
It sets corresponding, so that throttle orifice 311 can be connected to valve port 223 in 30 rotation process of valve block, is 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
Throttle orifice 311 is flowed by filter element 40, is flowed out through valve port 223, outlet 222 from outlet 80.
In specific scheme, valve base part 20 includes that fulcrum bearing 21 and fixed valve body 22 thereon, the two fission are 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 valve 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 provided on valve body 22, setting and valve seat in fulcrum bearing 21
The compatible through-hole of body 22, by valve body 22 admittedly in the through-hole of fulcrum bearing 21.
Certainly, import 221 and outlet 222 can be provided 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 also be arranged on valve body 22, and another part is arranged in fulcrum bearing
On 21.
In addition, valve base part 20 also can be set to integral structure, in contrast, separate structure it is easy to process and reduce at
This.
Scheme as shown in Figure 1 drives in the embodiment valve block 30 to rotate by motor.Motor specifically includes rotor part
10 and coil component.
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 valve block 30 when work, drive rotor part 10 to rotate by external coil component, and band movable valve block 30 is opposite
Valve body 22 rotates.
It is rotated together to make rotor part 10 be able to drive valve block 30 when rotating, it can be relatively solid with shaft 12 by valve block 30
It is fixed, for example valve block 30 and matching for shaft 12 is made to be combined into interference fit.
Certainly, can also be relatively fixed by valve block 30 and magnet 11, such as in the key portion (figure of the lower end of magnet 11 setting protrusion
In be not shown), in valve block 30 be arranged with key portion cooperation keyway 35, be fixed by the key portion and keyway 35 of magnet 11,
Keep magnet 11 and valve block 30 relatively fixed.
In addition, the key portion inlay card of magnet 11 plays to a certain extent valve block 30 being pressed in valve body in keyway 35
22 effect, it can be ensured that valve block 30 is bonded with valve body 22, prevents refrigerant from flowing into from the joint place of the two.
The valve gear further includes the shell 60 for being coated at magnet 11, and the bottom of shell 60 and valve base part 20 are fixed, specifically
Into the embodiment, the bottom of shell 60 and the fulcrum bearing 21 of valve base part 20 are fixed.
A kind of valve gear provided by the present invention and its valve block are described in detail above.Tool used herein
Principle and implementation of the present invention are described for body example, the above embodiments are only used to help understand this hair
Bright method and its core concept.It should be pointed out that for those skilled in the art, not departing from the present invention
, can be with several improvements and modifications are made to the present invention under the premise of principle, these improvement and modification also fall into right of the present invention
It is required that protection scope in.
Claims (9)
1. valve block, is used for valve gear, the valve block (30) can rotate relative to the valve base part (20) of the valve gear;Its feature
It is, the valve block (30) includes plate-like portion (31) and upper body (32) and lower body (33), the upper body (32) and institute
It states lower body (33) and is integrally formed at the plate-like portion (31) by way of injection molding;
The plate-like portion (31) is not exactly the same with the multiple apertures of the center of rotation around the valve block (30) circumferentially
Throttle orifice (311);The upper body (32) has lumen therethrough (321), each throttle orifice (311) and the lumen therethrough (321)
Directly it is connected to;
The lower body (33) have with multiple throttle orifice (311) positions multiple intercommunicating pores (331) correspondingly, and it is each
The size of the intercommunicating pore (331) is all larger than the throttle orifice (311) of corresponding position.
2. valve block according to claim 1, which is characterized in that the plate-like portion (31) has and the lumen therethrough (321)
The middle through-hole of connection, the valve block (30) further include the sleeve part (34) being embedded in the middle through-hole admittedly, the sleeve part
(34) top surface of the plate-like portion (31) is protruded from;The sleeve part (34) and the upper body (32), lower body (33) one
Molding, and the plate-like portion (31) are formed in by way of injection molding.
3. valve block according to claim 1, which is characterized in that the plate-like portion (31) has multiple ports (312), described
Upper body (32) and the lower body (33) are formed in the transition part formation integral structure of the port (312) by injection molding.
4. valve block according to claim 3, which is characterized in that multiple ports (312) are set to the plate-like portion (31)
Periphery, and be evenly arranged along the periphery of the plate-like portion (31).
5. valve block according to claim 1-4, which is characterized in that the plate-like portion (31) is specially brass material
Or aluminum material is made.
6. valve block according to claim 1-4, which is characterized in that the upper body (32) and the lower body
It (33) is specially that PPS engineering plastics or PEEK engineering plastics are made.
7. valve gear, including valve base part (20), the valve base part (20) has import (221) and exports (222), it is described into
Mouth (221) is connected to valve chamber (R1);It is characterized in that, further include valve block as claimed in any one of claims 1 to 6 (30), it is described
The bottom surface of the lower body (33) of valve block (30) is bonded with the top surface of the valve base part (20);The valve block (30) being capable of phase
The valve base part (20) are rotated, so that the throttle orifice (311) is connected to the outlet (222), or close the outlet
(222)。
8. valve gear according to claim 7, which is characterized in that further include filter element (40), the filter element
(40) in the lumen therethrough (321) of the upper body (32), and have with the top surface of the plate-like portion (31) and make a reservation for
Distance, the throttle orifice (311) is connected to the filter element (40) and the plate-like portion (31), the upper body (32) enclose shape
At accommodating chamber (R2).
9. valve gear according to claim 8, which is characterized in that the filter element (40) is by tin bronze ball or stainless steel
Ball is sintered to be formed;Alternatively, the filter element (40) is made of multilayer stainless steel mesh cloth.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810332388.3A CN110375081B (en) | 2018-04-13 | 2018-04-13 | Valve device and valve block thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810332388.3A CN110375081B (en) | 2018-04-13 | 2018-04-13 | Valve device and valve block thereof |
Publications (2)
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Cited By (1)
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CN113685592A (en) * | 2021-08-12 | 2021-11-23 | 江苏鱼跃医疗设备股份有限公司 | Flow control dish and medical oxygen governing valve |
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