CN108386585A - Electric expansion valve and air conditioner - Google Patents
Electric expansion valve and air conditioner Download PDFInfo
- Publication number
- CN108386585A CN108386585A CN201810205278.0A CN201810205278A CN108386585A CN 108386585 A CN108386585 A CN 108386585A CN 201810205278 A CN201810205278 A CN 201810205278A CN 108386585 A CN108386585 A CN 108386585A
- Authority
- CN
- China
- Prior art keywords
- electric expansion
- expansion valve
- limiting section
- limit
- spiral shell
- 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.)
- Pending
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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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
- F16K31/0655—Lift valves
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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
- F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
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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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention provides a kind of electric expansion valve and air conditioners.Electric expansion valve includes：Valve seat, valve body and cover assembly；Nut is fixedly mounted in installation cavity；Moving parts, top in installation cavity and positioned at nut, moving parts include spiral shell axis, needle-valve, magnet and connecting locating mechanism, needle-valve is threaded through on spiral shell axis, magnet is fixed together with spiral shell axis by connecting locating mechanism, and spiral shell axis connect with nut thread and along the axially movably setting of nut；Upper end position-limit mechanism is arranged between cover assembly and connecting locating mechanism to carry out upper end limit to moving parts；Lower end position-limit mechanism is arranged between nut and connecting locating mechanism to carry out lower end limit to moving parts.The upper end position-limit mechanism and lower end position-limit mechanism of the present invention is not located on magnet, can be avoided magnet participation braking, be improved the durability of magnet, while being avoided that abrasion generation powder causes electric expansion valve stuck when magnet participates in braking.
Description
Technical field
The present invention relates to air-conditioning technical fields, in particular to a kind of electric expansion valve and air conditioner.
Background technology
The patent of invention of the motor-driven valve of Japanese " KK Saginomiya Seisakusyo ", number of patent application are：
" 200910151775.8 ", the technical patent main points be in order to make support member, armature spindle, magnet assembling work be easier into
Row, has carried out the structure design of upper and lower end bridle on three parts；And the fixation between armature spindle and magnet rotor is set
Meter scheme.
Magnet is more fragile in the prior art above-mentioned, wears no resistance, is directly used in stop, be easy to cause abrasion, wears
The powder of generation enter the positions such as screw thread, magnet outer wall and housing slot, needle-valve and valve port gap be easy to cause it is stuck；Magnet with
If the fixation of armature spindle, using elastic engaging mode, assembling process be easy to cause magnet damage, if using electrically heated side
Formula carries out thermal welding indentation assembly, and the stability requirement of stability and cylinder pressure to equipment heating temperature is high；Magnet assembles
After good, total is fixed, and cannot be removed easily, and going wrong all to scrap；Magnet material includes rare earth material, price
Very high, the magnet structure materials'use amount is big, it is easy to cause cost increase.
Invention content
The main purpose of the present invention is to provide a kind of electric expansion valve and air conditioners, to solve electronics in the prior art
The chocking construction short life of expansion valve, the problem of stability difference.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of electric expansion valve, including：Valve seat,
Valve body and cover assembly, the valve body are arranged on the valve seat, and the cover assembly setting is in the valve body far from described
It simultaneously encloses to set to form installation cavity with the valve body in one end of valve seat；Nut, the nut are fixedly mounted in the installation cavity；Movement
Component, the moving parts be mounted on the installation cavity in and positioned at the nut top, the moving parts include spiral shell axis,
Needle-valve, magnet and connecting locating mechanism, the needle-valve are threaded through on the spiral shell axis, and the magnet passes through described with the spiral shell axis
Connecting locating mechanism is fixed together, and the spiral shell axis connect with the nut thread and along the axially movable of the nut
Ground is arranged；Upper end position-limit mechanism, the upper end position-limit mechanism are arranged between the cover assembly and the connecting locating mechanism
To carry out upper end limit to the moving parts；Lower end position-limit mechanism, the lower end position-limit mechanism are arranged in the nut and institute
It states between connecting locating mechanism to carry out lower end limit to the moving parts.
Further, the lower end position-limit mechanism includes：First lower end limiting section, the setting of first lower end limiting section exist
The top of the nut；Second lower end limiting section, second lower end limiting section are arranged in the bottom of the connecting locating mechanism,
First lower end limiting section and second lower end limiting section are in contact to carry out lower end limit to the moving parts.
Further, first lower end limiting section and second lower end limiting section are limit protrusion.
Further, it is provided with limit outward flange on the spiral shell axis；The connecting locating mechanism includes：Check plate, it is described
Mounting hole is provided on check plate, the spiral shell axis is mounted in the mounting hole, and is limited to institute by the limit outward flange
It states on check plate；Connecting plate, the connecting plate are fixed together with the check plate, and the magnet is solid with the connecting plate
Fixed setting；The bottom in the check plate or the connecting plate is arranged in second lower end limiting section.
Further, the limited block of at least one piece upper surface for protruding from the check plate is provided on the check plate,
The periphery of the limit outward flange is provided with limit plane compatible with the limited block.
Further, it is arranged fluted on the connecting plate, the connecting plate buckle closure is on the spiral shell axis, the top of the spiral shell axis
End is located in the groove, and the magnet is magnet ring, and the magnet ring is arranged with the connecting plate integrated injection molding.
Further, the outer side edges of the connecting plate are provided at least one trimming.
Further, the limited block is two pieces, and there are two connecting hole, two pieces of limited blocks for setting on the connecting plate
It riveting or is welded in two connecting holes correspondingly.
Further, the upper end position-limit mechanism includes：First upper end limiting section, the setting of first upper end limiting section exist
On the cover assembly；Second upper end limiting section, second upper end limiting section is arranged on the check plate, on described second
End limiting section is contacted with first upper end limiting section to carry out upper end limit to the moving parts.
Further, second upper end limiting section is the limit raised line being arranged in the upper surface of the check plate；It is described
Cover assembly includes shell and inner cover, and first upper end limiting section is to be arranged at the edge of the inner cover and towards the inner cover
Extend internally spacing block set.
Further, abdicating through hole is provided on the connecting plate, the limit raised line is threaded through in the abdicating through hole.
Further, the check plate is stainless steel sheet metal component.
Further, the moving parts further include spring, are arranged along the axially extending of the spiral shell axis on the spiral shell axis
Through-hole, the needle-valve are mounted in the through-hole, and the both ends of the spring are supported respectively in the bottom of the groove and the needle
The top of valve.
Further, the connecting plate includes link block and the spring cup that is welded on the link block.
Further, the connecting plate is made using stainless steel sheet metal component or metallic sintered products.
According to another aspect of the present invention, a kind of air conditioner, including electric expansion valve are provided, the electric expansion valve is
Above-mentioned electric expansion valve.
It applies the technical scheme of the present invention, during actual use, electric expansion valve is by applying to coil part
Pulse current controls the rotation of magnet and spiral shell axis, keeps the needle-valve inside spiral shell axis opposite with the screw thread feeding of nut effect with spiral shell axis
Valve port on valve seat is retreated, to which control passes through the flow of the fluid of valve port.In order to limit the valve closing side in flow-control scope
To needle-valve lowest positions and valve opening position needle-valve the top position, and have for limit magnet, spiral shell axis turn
The upper end position-limit mechanism and lower end position-limit mechanism of dynamic position.
Since the upper end position-limit mechanism of the electric expansion valve in the present invention is provided in cover assembly and connecting locating mechanism
Between to carry out upper end limit to moving parts, and lower end position-limit mechanism be provided between nut and connecting locating mechanism with
Lower end limit is carried out to moving parts.As it can be seen that the upper end position-limit mechanism and lower end position-limit mechanism in the present invention are not provided with
It on magnet, avoids magnet from participating in braking, improves the durability of magnet, while being avoided that abrasion generates powder when magnet participates in braking
End causes electric expansion valve stuck, improves the life and reliability of the brake structure of the electric expansion valve in the present invention, reduces electricity
The production cost of sub- expansion valve.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 diagrammatically illustrates the sectional view of the electric expansion valve of the present invention；
Fig. 2 diagrammatically illustrates the sectional view when upper end position-limit mechanism limit work of the electric expansion valve of the present invention；
Fig. 3 diagrammatically illustrates the sectional view when lower end position-limit mechanism limit work of the electric expansion valve of the present invention；
The electric expansion valve that Fig. 4 diagrammatically illustrates the present invention is dismantled the stereogram after cover assembly and magnet；
Fig. 5 diagrammatically illustrates the stereogram of the check plate in first embodiment of the invention；
Fig. 6 diagrammatically illustrates the stereogram of the connecting plate in first embodiment of the invention；
Fig. 7 diagrammatically illustrates the stereogram of the spiral shell axis in first embodiment of the invention；
Fig. 8 diagrammatically illustrates magnet in first embodiment of the invention and solid when connecting plate is fixed together
Figure；
Fig. 9 diagrammatically illustrates the stereogram of the moving parts in first embodiment of the invention；
Figure 10 diagrammatically illustrates the stereogram that the moving parts in first embodiment of the invention are dismantled after magnet；
Figure 11 diagrammatically illustrates the sectional view of the moving parts in first embodiment of the invention；
Figure 12 diagrammatically illustrates the stereogram of the inner cover of the present invention；
Figure 13 diagrammatically illustrates the sectional view of the cover assembly of the present invention；
Figure 14 diagrammatically illustrates stereogram of the limited block riveting of present invention when on connecting plate；
Figure 15 diagrammatically illustrates the stereogram of the check plate in second embodiment of the invention；
Figure 16 diagrammatically illustrates the stereogram of the connecting plate in second embodiment of the invention；
Figure 17 diagrammatically illustrates the stereogram of the spiral shell axis in second embodiment of the invention；
Figure 18 diagrammatically illustrates the moving parts in second embodiment of the invention and dismantles the stereogram after magnet；
Figure 19 diagrammatically illustrates the sectional view of the moving parts in second embodiment of the invention.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, valve seat；20, valve body；30, cover assembly；31, inner cover；32, shell；40, nut；50, moving parts；51, spiral shell
Axis；511, outward flange is limited；5111, plane is limited；512, through-hole；52, needle-valve；53, magnet；54, connecting locating mechanism；541、
Check plate；5411, mounting hole；5412, limited block；542, connecting plate；5421, groove；5422, trimming；5423, connecting hole；
5424, abdicating through hole；5425, link block；5426, spring cup；55, spring；60, upper end position-limit mechanism；61, the first upper end limits
Portion；62, the second upper end limiting section；70, lower end position-limit mechanism；71, the first lower end limiting section；72, the second lower end limiting section；80、
Fixed plate.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Those of be necessarily limited to clearly to list step or unit, but may include not listing clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... 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 understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Shown in Fig. 1 to Figure 19, according to an embodiment of the invention, a kind of electric expansion valve is provided, the electronic expansion
Valve includes valve seat 10, valve body 20, cover assembly 30, nut 40, moving parts 50, upper end position-limit mechanism 60, lower end position-limit mechanism
70 and coil part (not shown).
Wherein, valve body 20 be arranged on valve seat 10, cover assembly 30 be arranged the one end of valve body 20 far from valve seat 10 and with
Valve body 20, which encloses, to be set to form installation cavity；Nut 40 is fixedly mounted in installation cavity；Moving parts 50 are mounted in installation cavity and are located at
The top of nut 40, moving parts 50 include spiral shell axis 51, needle-valve 52, magnet 53 and connecting locating mechanism 54, and needle-valve 52 is worn
On spiral shell axis 51, magnet 53 is fixed together with spiral shell axis 51 by connecting locating mechanism 54, spiral shell axis 51 and 40 screw thread of nut
It connects and along the axially movably setting of nut 40；Upper end position-limit mechanism 60 is arranged in cover assembly 30 and connecting locating mechanism
To carry out upper end limit to moving parts 50 between 54；The setting of lower end position-limit mechanism 70 nut 40 and connecting locating mechanism 54 it
Between with to moving parts 50 carry out lower end limit.
During actual use, electric expansion valve be by coil part apply pulse current come control magnet 53 and
The rotation of spiral shell axis 51 is made with the screw thread feeding effect of spiral shell axis 51 and nut 40 on 52 opposite valve seat 10 of needle-valve inside spiral shell axis 51
Valve port is retreated, to which control passes through the flow of the fluid of valve port.In order to limit the needle-valve in the valve closing direction in flow-control scope
The top position of 52 lowest positions and the needle-valve 52 of valve opening position, and have for limiting turning for magnet 53, spiral shell axis 51
The upper end position-limit mechanism 60 and lower end position-limit mechanism 70 of dynamic position.
As shown in Figure 1, two piece-root grafting pipes, valve body 20, the valve seat 10 on electric expansion valve constitute the flow cycle of fluid, it should
Structure is by being welded and fixed.Nut 40 is pressed into valve body 20 by fixed plate 80, is relatively fixed with valve body 20.
Cover assembly 30 is provided in by the upper end position-limit mechanism 60 of electric expansion valve in this present embodiment and connection is fixed
To carry out upper end limit to moving parts 50 between the mechanism 54 of position, and lower end position-limit mechanism 70 is provided in nut 40 and connection
To carry out lower end limit to moving parts 50 between detent mechanism 54.As it can be seen that 60 He of upper end position-limit mechanism in the present embodiment
Lower end position-limit mechanism 70 is not located on magnet 53, and magnet 53 is avoided to participate in braking, improves the durability of magnet 53, simultaneously
It is avoided that abrasion generation powder causes electric expansion valve stuck when magnet 53 participates in braking, improves the electronic expansion in the present embodiment
The life and reliability of the brake structure of valve reduces the production cost of electric expansion valve.
Shown in Figure 3, the lower end position-limit mechanism 70 in the present embodiment includes the first lower end limiting section 71 and the second lower end
Limiting section 72, wherein the first lower end limiting section 71 is arranged on the top of nut 40；The setting of second lower end limiting section 72 is fixed in connection
The bottom of position mechanism 54, when work, the first lower end limiting section 71 and the second lower end limiting section 72 are in contact with to moving parts 50
Carry out lower end limit.
Shown in Fig. 3 and Fig. 5, the first lower end limiting section 71 and the second lower end limiting section 72 in the present embodiment are limited
Position protrusion.It certainly, in other embodiments of the invention, can also be by the first lower end limiting section 71 and the second lower end limiting section 72
Be set as buckle etc. structures, as long as the present invention design under other modes of texturing, protection scope of the present invention it
It is interior.
In conjunction with shown in Fig. 7, limit outward flange 511 is provided on the spiral shell axis 51 in the present embodiment, connecting locating mechanism 54 wraps
Check plate 541 and connecting plate 542 are included, is provided with mounting hole 5411 on check plate 541, when installation, spiral shell axis 51 is mounted on installation
In hole 5411, and it is limited on check plate 541 by limiting outward flange 511；Connecting plate 542 is fixedly connected on check plate 541
Together, magnet 53 is fixedly installed with connecting plate 542, makes the needle-valve 52 inside spiral shell axis 51 convenient for the screw thread feeding effect with nut 40
Valve port on opposite valve seat 10 is retreated.
Shown in Figure 5, in the first embodiment of the present invention, the second lower end limiting section 72 is arranged in check plate 541
Bottom.
In conjunction with shown in Fig. 7, it is provided at least one piece on the check plate 541 in the present embodiment and protrudes from the upper of check plate 541
The periphery of the limited block 5412 on surface, limit outward flange 511 is provided with limit plane 5111 compatible with limited block 5412, just
In preventing spiral shell axis 51 and 541 circumferentially opposed rotation of check plate.
Shown in Fig. 6, Fig. 8, Fig. 9, Figure 10 and Figure 11, fluted 5421 are arranged on connecting plate 542, connecting plate 542
On spiral shell axis 51, the top of spiral shell axis 51 is located in groove 5421 buckle closure, and magnet 53 is magnet ring, and magnet ring is noted with 542 one of connecting plate
Be moulded into type setting, magnet and 542 integrated injection molding of connecting plate in the present embodiment, follow-up assembly by connecting plate 542 and other zero
Part erection welding, simple for process, sound construction avoid magnet 53 from directly participating in assembly and magnet 53 are caused to damage.
Preferably, the outer side edges of the connecting plate 542 in the present embodiment are provided at least one trimming 5422, ensure injection molding
Afterwards, with connecting plate 542 circumferentially opposed rotation will not occur for magnet 53.
Shown in Fig. 5 and Fig. 6, the limited block 5412 in the first embodiment of the present invention is two pieces, is set on connecting plate 542
It sets there are two connecting hole 5423, two pieces of limited blocks 5412 are welded on correspondingly in two connecting holes 5423.
Shown in Fig. 2, Fig. 5, Fig. 6, Fig. 8, Fig. 9, Figure 10 and Figure 11, the upper end limit in the first embodiment of the present invention
Position mechanism 60 includes the first upper end limiting section 61 and the second upper end limiting section 62, wherein the first upper end limiting section 61 is arranged upper
On cap assemblies 30；Second upper end limiting section 62 is arranged on connecting locating mechanism 54, when installation, the second upper end limiting section 62 and the
The contact of one upper end limiting section 61 to moving parts 50 to carry out upper end limit.
Preferably, the second upper end limiting section 62 in the present embodiment is the upper table being arranged in check plate 541 or connecting plate 542
The limit raised line in face；Cover assembly 30 includes shell 32 and inner cover 31, and the first upper end limiting section 61 is to be arranged on the side of inner cover 31
Edge simultaneously extends internally spacing block set towards inner cover 31.
For the ease of installation, abdicating through hole 5424 is provided on the connecting plate 542 in the present embodiment, limit raised line is threaded through
In abdicating through hole 5424, convenient for coordinating to carry out upper end to moving parts 50 with the limit protrusion on the inner cover 31 of cover assembly 30
Limit.
Preferably, the check plate 541 in the present embodiment and connecting plate 542 are stainless steel sheet metal component, certainly, in the present invention
Other embodiment in, check plate 541 and connecting plate 542 can also be made using the high material of other structures intensity,
As long as under the design of the present invention, within protection scope of the present invention.
Show referring to Fig. 1 to Figure 13, the moving parts 50 in the present embodiment further include spring 55, are arranged along spiral shell on the spiral shell axis 51
The axially extending through-hole 512 of axis 51, needle-valve 52 are mounted in through-hole 512, and the both ends of spring 55 are supported respectively in groove 5421
Bottom and needle-valve 52 top.
According to the above embodiments it is recognised that the nut 40 of the present invention is pressed into valve body 20 by fixed plate 80, with valve body
20 are relatively fixed, and there is outwardly extending first lower end limiting section 71 in 40 the top of nut, constitute fixed lower end limiter.
Moving parts 50 are made of spiral shell axis 51, needle-valve 52, spring 55, check plate 541, connecting plate 542, magnet 53.Specifically
Assembling mode is：541 structure of check plate is as shown in figure 5, it is preferred that stainless steel sheet metal component, there is 2 symmetrical shorter bendings on one side
There are a shorter bending edges, i.e. the second lower end limit in side and a longer bending edges, i.e. the second upper end limiting section 62, another side
Portion 72, longer bending edges constitute movable second upper end limiting section 62, and there are one shorter bending edges for another side, under constituting movably
Hold limiter.Two of first assembly check plate 541 and spiral shell axis 51,541 symmetrical 2 shorter bending edges of check plate and spiral shell axis 51
It limits plane 5111 to coordinate, prevents spiral shell axis 51 and 541 circumferentially opposed rotation of check plate, be then sequentially loaded into the inner cavity of spiral shell axis 51
Needle-valve 52 and spring 55.542 structure of connecting plate is as shown in fig. 6, magnet 53 and 542 integrated injection molding of connecting plate, connecting plate 542
It is preferred that stainless steel sheet metal component, there are 2 trimmings 5422 on 542 excircle of connecting plate, after ensureing injection molding, magnet 53 and connecting plate 542
Circumferentially opposed rotation will not occur.On spiral shell axis 51 before the magnet 53 of one is mounted on connecting plate 542.Connecting plate 542
3 holes and check plate 541 it is upward 3 bending edges it is corresponding.The limit of two shorter bendings of check plate 541 after installation is complete
Position block 5412 carries out laser welding with connecting plate 542 and fixes, spiral shell axis 51 and 53 relatively complete fixation of magnet.
The structure of inner cover 31 is as shown in figure 12, and the part that periphery is bent to center constitutes the first upper end of fixed upper end limiting section
61, inner cover 31 is pressed into 32 top of shell, gets fixation ready on shell 32, as shown in figure 13.
Moving parts 50 are packed into nut 40, and threaded engagement is reloaded into the shell 32 for pressing inner cover 31, by welded seal,
Complete the assembly of electric expansion valve.
When work, the pulse current drive motion component 50 of coil input moves upwards, can when move to check plate 541
When fixing the first upper end limiting section 61 and engaging of dynamic second upper end limiting section 62 and inner cover 31, prevention magnet 53 is rotated further,
Form upper limit.
The pulse current drive motion component 50 of coil input moves downward, when moving to movable the second of check plate 541
When fixing the first lower end limiting section 71 and engaging of lower end limiting section 72 and nut 40, prevents being rotated further for magnet 53, under formation
Limit.
Shown in Figure 14 to Figure 19, according to the second embodiment of the present invention, a kind of electric expansion valve, this implementation are provided
Electric expansion valve and first embodiment is essentially identical in example, the difference is that the check plate 541 in the present embodiment and connecting plate
It can also be fixed together by way of riveting between 542,5412 riveting of limited block is specially fixed on connecting hole 5423
It is interior, it is simple in structure, it is easy to implement.The connection type decreases relative to welded type, fastness.
In addition, the second lower end limiting section 72 in the present embodiment can be changed on connecting plate 542, connecting plate 542 is divided into two
Part link block 5425 and spring cup 5426, two last laser weldings of part are fixed, 542 preferred powder metallurgy system of connecting plate
Make.The optimal embodiment of the Structure Comparison, since the precision of the ratio of precision sheet metal component of powder metallurgy is high, can be improved can lower end limit
The precision of mechanism, but the cost of metallic sintered products is higher, and increase a part, overall cost is risen.
According to another aspect of the present invention, a kind of air conditioner, including electric expansion valve are provided, electric expansion valve is above-mentioned
Electric expansion valve.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
1. movable second lower end limiting section and the second upper end limiting section are metalworks, magnet is avoided to participate in stop, improved
Endurance quality, while being avoided that abrasion generation powder causes stuck when magnet participates in stop；
2. magnet and connecting plate integrated injection molding, follow-up assembly is by connecting plate and other parts erection welding, technique letter
Single, sound construction avoids magnet from directly participating in assembly and magnet is caused to damage；
3. moving parts are easily split with valve component, defective products only scraps rotor assembly or valve component, another recycling
It utilizes, effectively reduces cost；
4. magnet material contains rare earth material, cost is very high, which can save the material for magnet and spiral shell axis guide section
Material, can effectively reduce cost.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of electric expansion valve, which is characterized in that including：
Valve seat (10), valve body (20) and cover assembly (30), the valve body (20) are arranged on the valve seat (10), it is described on
Cap assemblies (30) setting in the one end of the valve body (20) far from the valve seat (10) and encloses to set to form peace with the valve body (20)
It behave affectedly；
Nut (40), the nut (40) are fixedly mounted in the installation cavity；
Moving parts (50), the moving parts (50) are mounted on the top in the installation cavity and positioned at the nut (40),
The moving parts (50) include spiral shell axis (51), needle-valve (52), magnet (53) and connecting locating mechanism (54), the needle-valve
(52) it is threaded through on the spiral shell axis (51), the magnet (53) is solid by the connecting locating mechanism (54) with the spiral shell axis (51)
Surely link together, the spiral shell axis (51) be threadedly coupled with the nut (40) and along the nut (40) axially movably
Setting；
Upper end position-limit mechanism (60), upper end position-limit mechanism (60) setting are positioned in the cover assembly (30) and the connection
To carry out upper end limit to the moving parts (50) between mechanism (54)；
Lower end position-limit mechanism (70), the lower end position-limit mechanism (70) are arranged in the nut (40) and the connecting locating mechanism
(54) to carry out lower end limit to the moving parts (50) between.
2. electric expansion valve according to claim 1, which is characterized in that the lower end position-limit mechanism (70) includes：
First lower end limiting section (71), first lower end limiting section (71) are arranged on the top of the nut (40)；
Second lower end limiting section (72), second lower end limiting section (72) are arranged at the bottom of the connecting locating mechanism (54)
Portion, first lower end limiting section (71) and second lower end limiting section (72) be in contact with to the moving parts (50) into
Row lower end limits.
3. electric expansion valve according to claim 2, which is characterized in that first lower end limiting section (71) and described
Two lower end limiting sections (72) are limit protrusion.
4. electric expansion valve according to claim 2, which is characterized in that be provided with limit outward flange on the spiral shell axis (51)
(511)；The connecting locating mechanism (54) includes：
Check plate (541), mounting hole (5411) is provided on the check plate (541), and the spiral shell axis (51) is mounted on the peace
It fills in hole (5411), and is limited on the check plate (541) by the limit outward flange (511)；
Connecting plate (542), the connecting plate (542) are fixed together with the check plate (541), the magnet (53) with
Connecting plate (542) fixed setting；
Second lower end limiting section (72) is arranged in the bottom of the check plate (541) or the connecting plate (542).
5. electric expansion valve according to claim 4, which is characterized in that be provided at least one on the check plate (541)
Block protrudes from the limited block (5412) of the upper surface of the check plate (541), and the periphery of the limit outward flange (511) is provided with
The compatible limit plane (5111) with the limited block (5412).
6. electric expansion valve according to claim 5, which is characterized in that be arranged on the connecting plate (542) fluted
(5421), for connecting plate (542) buckle closure on the spiral shell axis (51), the top of the spiral shell axis (51) is located at the groove
(5421) in, the magnet (53) is magnet ring, and the magnet ring is arranged with the connecting plate (542) integrated injection molding.
7. electric expansion valve according to claim 6, which is characterized in that the outer side edges of the connecting plate (542) are provided with
At least one trimming (5422).
8. electric expansion valve according to claim 5, which is characterized in that the limited block (5412) is two pieces, the company
Setting is there are two connecting hole (5423) on fishplate bar (542), and two pieces of limited blocks (5412) riveting or are welded on correspondingly
In two connecting holes (5423).
9. electric expansion valve according to claim 4, which is characterized in that the upper end position-limit mechanism (60) includes：
First upper end limiting section (61), first upper end limiting section (61) are arranged on the cover assembly (30)；
Second upper end limiting section (62), second upper end limiting section (62) are arranged on the check plate (541), and described second
Upper end limiting section (62) is contacted with first upper end limiting section (61) to carry out upper end limit to the moving parts (50).
10. electric expansion valve according to claim 9, which is characterized in that second upper end limiting section (62) is setting
Limit raised line in the upper surface of the check plate (541)；
The cover assembly (30) includes shell (32) and inner cover (31), and first upper end limiting section (61) is to be arranged described
The edge of inner cover (31) simultaneously extends internally spacing block set towards the inner cover (31).
11. electric expansion valve according to claim 10, which is characterized in that be provided with resigning on the connecting plate (542)
Through-hole (5424), the limit raised line are threaded through in the abdicating through hole (5424).
12. electric expansion valve according to claim 4, which is characterized in that the check plate (541) is stainless steel metal plate
Part.
13. electric expansion valve according to claim 6, which is characterized in that the moving parts (50) further include spring
(55), the axially extending through-hole (512) along the spiral shell axis (51) is set on the spiral shell axis (51), and the needle-valve (52) is mounted on
In the through-hole (512), the both ends of the spring (55) are supported respectively in the bottom of the groove (5421) and the needle-valve
(52) top.
14. electric expansion valve according to claim 4, which is characterized in that the connecting plate (542) includes link block
(5425) and the spring cup (5426) that is welded on the link block (5425).
15. electric expansion valve according to claim 14, which is characterized in that the connecting plate (542) uses stainless steel metal plate
Golden part or metallic sintered products are made.
16. a kind of air conditioner, including electric expansion valve, which is characterized in that the electric expansion valve is to appoint in claim 1 to 15
Electric expansion valve described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205278.0A CN108386585A (en) | 2018-03-13 | 2018-03-13 | Electric expansion valve and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205278.0A CN108386585A (en) | 2018-03-13 | 2018-03-13 | Electric expansion valve and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108386585A true CN108386585A (en) | 2018-08-10 |
Family
ID=63067208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810205278.0A Pending CN108386585A (en) | 2018-03-13 | 2018-03-13 | Electric expansion valve and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386585A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524232A (en) * | 2019-08-16 | 2019-12-03 | 珠海励高精工制造有限公司 | A kind of valve rod fills O-ring device and method automatically |
| WO2021098302A1 (en) * | 2019-11-19 | 2021-05-27 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN113969985A (en) * | 2020-07-24 | 2022-01-25 | 龙泉市惠丰进出口有限公司 | Electronic expansion valve |
| EP3998210A1 (en) * | 2021-02-19 | 2022-05-18 | Lilium eAircraft GmbH | Valve apparatus for controlling a fluid flow through a duct or opening of an air conditioning system of an aircraft |
| EP4047249A1 (en) * | 2021-02-19 | 2022-08-24 | Alfred Gaile | Valve apparatus for controlling a fluid flow through a duct or opening |
| CN113969985B (en) * | 2020-07-24 | 2024-05-17 | 浙江智汇汽车热管理科技有限公司 | Electronic expansion valve |
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| EP4047249A1 (en) * | 2021-02-19 | 2022-08-24 | Alfred Gaile | Valve apparatus for controlling a fluid flow through a duct or opening |
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Effective date of registration: 20230912 Address after: 311835 Diankou Industrial Zone, Zhuji City, Shaoxing City, Zhejiang Province Applicant after: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT Co.,Ltd. Address before: No.2 workshop of Zhuhai Lingda Compressor Co., Ltd., no.2097, Jiuzhou Avenue, Zhuhai, Guangdong 519000 Applicant before: ZHUHAI LIGAO PRECISION MANUFACTURING CO.,LTD. Applicant before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |
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