CN203516959U - Electronic expansion valve and liquid lens thereof - Google Patents
Electronic expansion valve and liquid lens thereof Download PDFInfo
- Publication number
- CN203516959U CN203516959U CN201320682799.8U CN201320682799U CN203516959U CN 203516959 U CN203516959 U CN 203516959U CN 201320682799 U CN201320682799 U CN 201320682799U CN 203516959 U CN203516959 U CN 203516959U
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- sighting glass
- boss
- valve seat
- end surface
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- 239000007788 liquid Substances 0.000 title abstract description 8
- 239000011521 glass Substances 0.000 claims description 83
- 238000012856 packing Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 37
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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- Check Valves (AREA)
Abstract
The utility model provides an electronic expansion valve and a liquid lens thereof. By means of the liquid lens, the sealing reliability can be improved. The liquid lens comprises a cylindrical lens body, wherein the lens body is provided with a connecting end surface abutted against a valve seat; a boss is arranged on the inner edge of the connecting end surface in the circumferential direction of the connecting end surface; and the end, facing the valve seat, of the boss is shorter than the end, connected with the lens body, of the boss. After the lens body of the liquid lens is abutted against the valve seat, the boss is tightly pressed between the lens body and the valve seat, so that a whole valve body is sealed, and a special sealing element is not required; the boss is arranged on the lens body and belongs to a part of the liquid lens, and all that is required is to effectively connect the liquid lens with the valve seat, so that the sealing performance of the valve body can be guaranteed, and influences of external factors such as vibration and the like on the sealing performance are avoided; and the short edge of the boss is abutted against the valve seat, and the extrusion force borne by the boss is certain, so that pressure acted on the valve seat is larger when the short edge of the boss is contacted with the valve seat, therefore, the sealing effectiveness is guaranteed.
Description
Technical field
The utility model relates to expansion valve technical field, particularly relates to a kind of liquid-sighting glass of electric expansion valve.The utility model also relates to a kind of electric expansion valve with above-mentioned liquid-sighting glass.
Background technique
Along with the shortcoming of heating power expansion valve is more obvious, existing large-scale freezing unit adopts electric expansion valve more and more.
Existing electric expansion valve is provided with liquid-sighting glass, and liquid-sighting glass is mainly used in indication: the refrigerant condition of liquid line in refrigeration plant; In water content in refrigeration agent and return line from the flow condition of the lubricant oil of oil separator.
Please refer to Fig. 1, Fig. 1 is that liquid-sighting glass seat of the prior art is arranged on the cross-sectional view on valve seat in a kind of embodiment.
The liquid-sighting glass of prior art, mainly comprise mirror body 1 ', Glass optical lenses 2 ' and indication paper 3 ', mirror body 1 ' is arranged to tubular structure, and Glass optical lenses 2 ' is arranged on the top of mirror body 1 ', the bottom of mirror body 1 ' is provided with female thread structure, to be spirally connected fixing with the joint 41 ' on valve seat 4 '; Indication paper 3 ' is arranged on mirror body 1 ' inside by support 5 ', as shown in Figure 1, the lower end surface of support 5 ' and the upper-end surface of joint 41 ' sealing butt, indication paper 3 ' is by the lower end surface carrying of support 5 '.
The sidewall of support 5 ' and the laminating of the side of Glass optical lenses 2 ', for realizing the sealing of support 5 ' and Glass optical lenses 2 ', between is provided with O type packing ring 6 '; Meanwhile, the upper-end surface of Glass optical lenses 2 ' is also provided with annular gasket 7 ', and whole electric expansion valve is realized sealing setting by O type packing ring 6 ' and annular gasket 7 ', prevents refrigerant external leakage.
But in said structure, sealing relies on the structures such as packing ring and pad completely, and the package assemblies such as pad or packing ring are when being subject to the vibration of Transport Vibration or equipment, easily produce loosening inefficacy, and then cause the refrigerant external leakage in valve, cause refrigeration to lose efficacy and environmental pollution;
Meanwhile, packing ring and pad etc. conventionally adopt plastic material to make, and under the cold and hot percussion of refrigerant, easily aging, sclerosis and produce distortion and loosening, may cause seal failure equally, causes the risk of refrigerant external leakage.
In addition, the support 5 ' that is used to indicate paper 3 ' installation need to be connected with mirror body 1 ' with valve seat 4 ', and its processing is difficulty comparatively, and cost is higher, and assembling difficulty is also larger.
Therefore, how designing a kind of liquid-sighting glass of electric expansion valve, to improve the sealing of liquid-sighting glass and valve seat, is the current technical issues that need to address of those skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of liquid-sighting glass of electric expansion valve, can improve sealing reliability.
Another object of the present utility model is to provide a kind of electric expansion valve with above-mentioned liquid-sighting glass.
For solving the problems of the technologies described above, the utility model provides a kind of liquid-sighting glass of electric expansion valve, comprise and be the mirror body that tubular arranges, described mirror body has the connecting end surface with valve seat butt, the inner edge of described connecting end surface is circumferentially with boss along it, and described boss is shorter than its one end being connected with described mirror body towards one end of described valve seat.
Liquid-sighting glass of the present utility model has the connecting end surface with valve seat butt, and the inner edge of described connecting end surface is provided with boss,, after the mirror body and valve seat butt of liquid-sighting glass, boss is pressed between mirror body and valve seat, realize the sealing of whole valve body, without special Sealing is set; Because boss is arranged on mirror body, a part that belongs to liquid-sighting glass, with the Sealings such as packing ring or pad be set separately in prior art compare, as long as liquid-sighting glass is effective with being connected of valve seat, just can guarantee the sealing of valve body, therefore avoided the impact of the external factor such as vibration on sealing, made sealing of the present utility model more reliable; Boss is connected with valve seat with its minor face, and the pressure of generation is larger, can improve the reliability of sealing.
Preferably, described boss described mirror body axially on cross section be inverted trapezoidal, the angle that trapezoidal two kidney-shapeds of described boss become is between 60～120 degree, the length of its minor face is arranged between 0.3～0.8mm, to guarantee that the minor face of boss has certain width, be unlikely to be cut off when active force is excessive, also can not affect because minor face is wide sealing.
Boss can be set to inverted trapezoidal, therefore when mirror body is connected with valve seat, boss is with its trapezoidal minor face and valve seat butt, the extruding force being subject to due to boss is certain, and while contacting with minor face, the pressure that acts on valve seat is larger, to guarantee the validity of sealing.
Preferably, described boss described mirror body axially on cross section be inverted triangle, the angle that del two kidney-shapeds of described boss become is between 60～120 degree.
Preferably, described boss described mirror body axially on cross section be the inverted triangle with arc round angle, the angle that del two kidney-shapeds of described boss become is between 60～120 degree, described arc round angle and described valve seat connect.
In like manner, inverted triangular structure makes leg-of-mutton top be connected to valve seat, in the situation that the extruding force that boss bears is certain, the distortion that apex produces is larger, can improve the reliability of sealing.
Preferably, described connecting end surface is provided with some described boss, and some described boss distribute along the spaced radial of described connecting end surface.
Preferably, described liquid-sighting glass also comprises eyeglass, described mirror body comprises the upper, middle and lower axially connecting successively, the endoporus on described top is for fixing len, the outer wall at described middle part is the outstanding protuberance of being convenient to clamping that is provided with outwards, the endoporus of described bottom or outer wall are provided with the worm structure coordinating with the threaded joints of valve seat, and the lower end surface of described middle part or described bottom forms described connecting end surface.
Liquid-sighting glass can subsection setup, then eyeglass is arranged on to top, at middle part, protuberance is set, and while being connected with valve seat with its underpart with convenient liquid-sighting glass, spanner etc. can being screwed to part and act on the protuberance at middle part, and then liquid-sighting glass is tightened on valve seat.
By said structure, liquid-sighting glass of the present utility model can act on the inner protuberance that eyeglass is not installed when installing, and also just the power of screwing can be delivered to eyeglass, has avoided broken because screwing the excessive eyeglass causing of power; Meanwhile, the setting of protuberance is convenient to the parts such as spanner and is gripped, and can save the power of screwing, and has solved because of problems such as skidding of gripping that shakiness causes, has improved connection convenience.
Preferably, described eyeglass is sintered to fix in the endoporus on described top.
Preferably, the recessed formation riveted holes of inner hole wall of Yi Qi upper end, described top, so that described eyeglass is riveted in the endoporus on described top, and then has simplified processing technology, is convenient to assemble and dismantle.
Preferably, between the lower end surface of described eyeglass and the end face at described middle part, have and compress the seal washer arranging, further to improve sealing reliability.
Preferably, the axial cross section of described protuberance is set to hexagon or other non-circular structures.
Preferably, described bottom near the one end at described middle part with the inside recessed groove that is formed for installing packing ring of its outer wall.
The setting of groove is convenient to install packing ring, and, in liquid-sighting glass of the present utility model, packing ring can assist boss to seal, and the structure of this double seal has improved the reliability of sealing.
Preferably, the roof on described top is provided with for clamping the draw-in groove of label.
Preferably, described liquid-sighting glass also comprises the snap ring of indication paper and fixing described indication paper, and described snap ring is installed on the endoporus top at described middle part, so that by the solid bottom at described eyeglass of described indication paper card.
Snap ring can fix in liquid-sighting glass, compares with support of the prior art, and it is simple in structure, easy to assembly, and is convenient to indicate the installation of paper, and it is more convenient to use.
The utility model also provides a kind of electric expansion valve, comprises valve seat and is connected to the liquid-sighting glass on described valve seat, and described liquid-sighting glass is the liquid-sighting glass described in above-mentioned any one.
Because electric expansion valve of the present utility model has the liquid-sighting glass described in above-mentioned any one, therefore the technical effect that the liquid-sighting glass described in above-mentioned any one produces is all applicable to electric expansion valve of the present utility model, repeat no more herein.
Accompanying drawing explanation
Fig. 1 is that liquid-sighting glass seat of the prior art is arranged on the cross-sectional view on valve seat in a kind of embodiment;
Fig. 2 is the partial cutaway schematic of electric expansion valve that the utility model provides in a kind of embodiment;
Fig. 3 is the partial cutaway schematic of electric expansion valve that the utility model provides in another kind of embodiment;
Fig. 4 is the assembling process decomposing schematic representation of liquid-sighting glass that the utility model provides in a kind of embodiment;
Fig. 5 is the cross-sectional view of liquid-sighting glass that the utility model provides in another kind of embodiment;
Fig. 6 provides the perspective view of a kind of set-up mode of mirror body for the utility model;
Fig. 7 is the generalized section of mirror body shown in Fig. 6;
Fig. 8 is the local enlarged diagram of A part in Fig. 7.
In Fig. 1:
1 ' mirror body, 2 ' Glass optical lenses, 3 ' indication paper, 4 ' valve seat, 41 ' joint, 5 ' support, 6 ' O type packing ring, 7 ' annular gasket
In Fig. 2-8:
1 mirror body, 11 connecting end surfaces, 12 boss, 13 tops, 131 riveted holes, 132 draw-in grooves, 133 seal grooves, 14 middle parts, 141 protuberances, 15 bottoms, 151 worm structures, 152 grooves, 2 valve seats, 3 eyeglasses, 4 indication paper, 5 snap rings, 6 labels, 7 seal washers
Embodiment
Core of the present utility model is to provide a kind of liquid-sighting glass of electric expansion valve, can improve the reliability of sealing.
Another core of the present utility model is to provide a kind of electric expansion valve with above-mentioned liquid-sighting glass.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the partial cutaway schematic of electric expansion valve that the utility model provides in a kind of embodiment; Fig. 3 is the partial cutaway schematic of electric expansion valve that the utility model provides in another kind of embodiment.
In a kind of embodiment, electric expansion valve of the present utility model comprises valve seat 2 and is arranged on the liquid-sighting glass on valve seat 2, to observe in refrigeration plant refrigerant condition etc. by liquid-sighting glass.
As shown in Figures 2 and 3, a side of valve seat 2 can arrange opening, and the two side of opening stretches out, and forms threaded joints 21, and the exterior edge face of threaded joints 21 or inwall can arrange outside thread or internal thread, so that carry out the installation of liquid-sighting glass.
Liquid-sighting glass of the present utility model comprises mirror body 1, and mirror body 1 is tubular setting, and the outer wall of mirror body 1 or inner hole wall can arrange outside thread or internal thread, to coordinate with internal thread or the outside thread of threaded joints 21, realizes being connected of liquid-sighting glass and valve seat 2.
Please further refer to Fig. 4-8, Fig. 4 is the assembling process decomposing schematic representation of liquid-sighting glass that the utility model provides in a kind of embodiment; Fig. 5 is the cross-sectional view of liquid-sighting glass that the utility model provides in another kind of embodiment; Fig. 6 provides the perspective view of a kind of set-up mode of mirror body for the utility model; Fig. 7 is the generalized section of mirror body shown in Fig. 6; Fig. 8 is the local enlarged diagram of A part in Fig. 7.
In liquid-sighting glass of the present utility model, after liquid-sighting glass is connected with valve seat 2, mirror body 1 forms connecting end surface 11 with the end face that valve seat 2 connects, and the inner edge of connecting end surface 11 is circumferentially provided with boss 12 along it, the cross section of boss 12 on mirror body 1 is axial is inverted trapezoidal setting, as shown in Figure 8.
Liquid-sighting glass of the present utility model, on the connecting end surface 11 of itself and valve seat 2 butts, be provided with boss 12,, after connecting end surface 11 and valve seat 2 butts, boss 12 is equivalent to a seal ring and is pressed between valve seat 2 and connecting end surface 11, has realized the sealing of liquid-sighting glass and valve seat 2; With the Sealings such as packing ring be additionally set in prior art compare, boss 12 of the present utility model belongs to a part for liquid-sighting glass, even if vibrated, because being connected between liquid-sighting glass and valve seat 2 is comparatively reliable, boss 12 can not produce loosening yet, and then has guaranteed the sealing reliability between valve seat 2 and liquid-sighting glass.
The cross section of boss 12 is set to inverted trapezoidal,, with its minor face and valve seat 2 butts, that is to say, boss 12 is less with the area of contact of valve seat 2, in the situation that between mirror body 1 and valve seat 2, active force is certain, the pressure that the minor face of boss 12 produces is larger, thereby can guarantee the reliability of sealing.
In addition, the structure of boss 12 is comparatively simple, is convenient to processing, and its cost of production is lower, also without assembling separately.
It should be noted that, the noun of locality such as described upper and lower, inside and outside, axial and circumferential be take mirror body 1 as reference herein, the length direction of mirror body 1 be described axially, the barrel of mirror body 1 around direction be described circumferentially; At the length direction of mirror body 1, near the direction of valve seat 2, be below, away from the direction of valve seat 2, be top; Described inner side or an inner side or one end referring near the longitudinal center line of mirror body 1, be described outside or outer end away from a side or one end of its longitudinal center line.
In the present embodiment, the sectional shape of boss 12 is set to inverted trapezoidal, relies on the pressure that minor face produces to guarantee the reliability sealing.Based on this design, can also carry out various conversion to the sectional shape of boss 12, as be set to inverted-triangular or with del (being wherein arc round angle with the position of valve seat 2 butts) of arc round angle etc., should be understood that above-mentioned del, the technical characteristics with the del of arc round angle for being equal to mutually with " inverted trapezoidal ".That is to say, when one end that every boss 12 is set to minor face towards one end of valve seat 2 in the axial direction, be connected with mirror body 1 is set to be longer than the structure of described minor face, all form the variant structure of boss 12 in the utility model, belong to protection domain of the present utility model.
On the basis of the above, two waists of boss 12 can be mutually several angle setting, as shown in Figure 8, the trapezoidal angled α of two kidney-shapeds, the number of degrees of α can be arranged between 60～120 degree, to guarantee that boss 12 has certain height, and then the axial clearance between connecting end surface 11 and valve seat 2 is filled to sealing; When α is arranged on above-mentioned angular range, can make trapezoidal minor face there is certain width, can guarantee the reliability of sealing, can not cut off because active force is excessive again.
Can expect, the length h of the minor face of boss 12 can be arranged between 0.3～0.8mm, to take into account its intensity and sealing demand.
It will also be appreciated that, on connecting end surface 11 of the present utility model, some described boss 12 can be set, each boss 12 distributes along the spaced radial of connecting end surface, be equivalent to the joint at liquid-sighting glass and valve seat 2, be provided with from inside to outside multi-layer sealed circle, guarantee sealing reliability, can effectively prevent refrigerant external leakage.
Particularly, mirror body 1 can be divided into three sections of settings, and as shown in Fig. 4-7, mirror body 1 can comprise perforation successively between top 13, middle part 14 and 15, three of the bottoms part axially connecting successively; Liquid-sighting glass of the present utility model also comprises eyeglass 3, and eyeglass 3 is fixedly installed in the endoporus on top 13; The outer wall at middle part 14 can outwards be given prominence to setting, and to form protuberance 141, protuberance 141 forms one and is convenient to the service portion that retaining member clamps; The inner hole wall of bottom 15 or outer wall can arrange worm structure, so as with threaded joints 21 threaded, form the valve body shown in Fig. 2 or Fig. 3.
At length, when the worm structure of bottom 15 is the outside thread shown in Fig. 4-7, the threaded joints 21 of valve seat 2 is female thread structure, and liquid-sighting glass is connected in valve seat 2 with the outside thread screw-casing of bottom 15; As shown in Figure 2, due to outside outstanding setting the in middle part 14, and bottom 15 is socketed in threaded joints 21 completely, the now lower end surface at middle part 14 and the open end butt of threaded joints 21, in the middle part of 14 lower end surface form described connecting end surface 11;
When the worm structure of bottom 15 is internal thread, the threaded joints 21 on valve seat 2 is set to external thread structure, and liquid-sighting glass is set with threaded joints 21 within it with the internal thread of bottom 15; Now, as shown in Figure 3, the lower end surface of bottom 15 contacts butt with valve seat 2, therefore the lower end surface of bottom 15 forms described connecting end surface 11.
Certainly, it will be understood by those skilled in the art that liquid-sighting glass is not limited to above-mentioned being threaded with the Placement of valve seat 2, when both Placements change, can define connecting end surface 11 with reference to above-mentioned position relationship too, and then on this connecting end surface 11, boss 12 is set.
Those skilled in the art are to be understood that, while carrying out the installation of liquid-sighting glass, conventionally adopt the retaining members such as spanner to act on liquid-sighting glass, to screwed, be fixed on valve seat 2, because liquid-sighting glass is hollow structure, and it is built-in with eyeglass 3, if overexerted, probably cause the breakage of eyeglass 3.When mirror body 1 subsection setup, the retaining members such as spanner can be clamped on the protuberance 141 at middle part 14, and eyeglass 3 is in top 13, like this, can use the larger power that screws that liquid-sighting glass is connected on valve seat 2 reliably, can not cause damage to eyeglass 3 again.
Meanwhile, protuberance 141 can be set to hexagon or other non-circular cross sections, so that grip, prevents from skidding.
Simultaneously, can also be on top 13 with the joint at middle part 14, seal groove 133 be set, then seal washer 7 is inserted in seal groove 133, and its compression is arranged between the lower end surface of eyeglass 3 and the end face at middle part 14, further really to improve the sealing reliability of mirror body 1.
On the other hand, the outer wall of bottom 15 can inside recessed formation groove 152, and groove 152 is arranged on the one end near middle part 14, and for packing ring is installed, to assist boss 12 to realize sealing, the structure setting of this double seal has guaranteed the validity of sealing.
In addition, the roof on top 13 can also arrange draw-in groove 132, and draw-in groove 132 is for clamping label 6, as shown in Figure 4.
On the basis of the above, liquid-sighting glass of the present utility model can also comprise indication paper 4 and snap ring 5, and snap ring 5 coordinates with indication paper 4, for fixing indication paper 4; As shown in Figure 4, snap ring 5 is installed on the endoporus top at middle part 14, and, after snap ring 5 will indicate paper 4 fixing, the bottom of indication paper 4 in eyeglass 3, is convenient to user and observes.
In the utility model, by snap ring 5, realize the fixing of indication paper 4, fixedly compare with support of the prior art, snap ring 5 simple in structure, is convenient to dismounting, and fixes comparatively reliable.
Above electric expansion valve provided by the utility model and liquid-sighting glass thereof are described in detail.Applied specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (14)
1. the liquid-sighting glass of an electric expansion valve, comprise and be the mirror body (1) that tubular arranges, it is characterized in that, described mirror body (1) has the connecting end surface (11) with valve seat (2) butt, the inner edge of described connecting end surface (11) is circumferentially with boss (12) along it, and described boss (12) is shorter than one end that it is connected with described mirror body (1) towards one end of described valve seat (2).
2. liquid-sighting glass as claimed in claim 1, it is characterized in that, described boss (12) described mirror body (1) axially on cross section be inverted trapezoidal, the angle that trapezoidal two kidney-shapeds of described boss (12) become is between 60～120 degree, the length of its minor face is arranged between 0.3～0.8mm.
3. liquid-sighting glass as claimed in claim 1, is characterized in that, described boss (12) described mirror body (1) axially on cross section be inverted triangle, the angle that del two kidney-shapeds of described boss (12) become is between 60～120 degree.
4. liquid-sighting glass as claimed in claim 1, it is characterized in that, described boss (12) described mirror body (1) axially on cross section be the inverted triangle with arc round angle, the angle that del two kidney-shapeds of described boss (12) become is between 60～120 degree, and described arc round angle and described valve seat (2) connect.
5. liquid-sighting glass as claimed in claim 1, is characterized in that, described connecting end surface (11) is provided with some described boss (12), and some described boss (12) distribute along the spaced radial of described connecting end surface (11).
6. the liquid-sighting glass as described in claim 1-5 any one, it is characterized in that, described liquid-sighting glass also comprises eyeglass (3), described mirror body (1) comprises the top (13) axially connecting successively, middle part (14) and bottom (15), the endoporus on described top (13) is for fixing len (3), the outer wall at described middle part (14) is the outstanding protuberance (141) of being convenient to clamping that is provided with outwards, the endoporus of described bottom (15) or outer wall are provided with the worm structure (151) coordinating with the threaded joints (21) of valve seat (2), the lower end surface of described middle part (14) or described bottom (15) forms described connecting end surface (11).
7. liquid-sighting glass as claimed in claim 6, is characterized in that, described eyeglass (3) is sintered to fix in the endoporus of described top (13).
8. liquid-sighting glass as claimed in claim 6, is characterized in that, described top (13) are with the recessed formation riveted holes of inner hole wall (131) of its upper end, so that described eyeglass (3) is riveted in the endoporus of described top (13).
9. liquid-sighting glass as claimed in claim 8, is characterized in that, has and compress the seal washer (7) arranging between the lower end surface of described eyeglass (3) and the end face of described middle part (14).
10. liquid-sighting glass as claimed in claim 6, is characterized in that, the axial cross section of described protuberance (141) is set to hexagon or other non-circular structures.
11. liquid-sighting glass as claimed in claim 6, is characterized in that, the one end at described bottom (15) close described middle part (14) is with the inside recessed groove (152) that is formed for installing packing ring of its outer wall.
12. liquid-sighting glass as claimed in claim 6, is characterized in that, the roof of described top (13) is provided with the draw-in groove (132) for clamping label.
13. liquid-sighting glass as claimed in claim 6, it is characterized in that, described liquid-sighting glass also comprises the snap ring (5) of indication paper (4) and fixing described indication paper (4), described snap ring (5) is installed on the endoporus top at described middle part (14), to described indication paper (4) is fixed to the bottom in described eyeglass (3).
14. 1 kinds of electric expansion valves, comprise valve seat (2) and are connected to the liquid-sighting glass on described valve seat (2), it is characterized in that, described liquid-sighting glass is the liquid-sighting glass described in above-mentioned 1-13 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320682799.8U CN203516959U (en) | 2013-10-30 | 2013-10-30 | Electronic expansion valve and liquid lens thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320682799.8U CN203516959U (en) | 2013-10-30 | 2013-10-30 | Electronic expansion valve and liquid lens thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516959U true CN203516959U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320682799.8U Expired - Lifetime CN203516959U (en) | 2013-10-30 | 2013-10-30 | Electronic expansion valve and liquid lens thereof |
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| Country | Link |
|---|---|
| CN (1) | CN203516959U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093460A (en) * | 2014-05-08 | 2015-11-25 | 浙江三花股份有限公司 | Liquid indicator |
| CN105546134A (en) * | 2016-01-29 | 2016-05-04 | 浙江绿洲制冷设备有限公司 | Electronic expansion valve |
| CN105866916A (en) * | 2015-01-23 | 2016-08-17 | 浙江三花股份有限公司 | Liquid sight glasses and electronic expansion valve provided with same |
| CN108087605A (en) * | 2016-11-21 | 2018-05-29 | 浙江三花汽车零部件有限公司 | A kind of solenoid valve |
-
2013
- 2013-10-30 CN CN201320682799.8U patent/CN203516959U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093460A (en) * | 2014-05-08 | 2015-11-25 | 浙江三花股份有限公司 | Liquid indicator |
| CN105866916A (en) * | 2015-01-23 | 2016-08-17 | 浙江三花股份有限公司 | Liquid sight glasses and electronic expansion valve provided with same |
| CN105546134A (en) * | 2016-01-29 | 2016-05-04 | 浙江绿洲制冷设备有限公司 | Electronic expansion valve |
| CN108087605A (en) * | 2016-11-21 | 2018-05-29 | 浙江三花汽车零部件有限公司 | A kind of solenoid valve |
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Effective date of registration: 20160815 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Liquan village of Chengguan Zhejiang city of Shaoxing province Xinchang County town Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
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