CN207180107U

CN207180107U - Expansion valve component

Info

Publication number: CN207180107U
Application number: CN201720775956.8U
Authority: CN
Inventors: 不公告发明人
Original assignee: Xinchang Four Link Electromechanical Co Ltd
Current assignee: Xinchang Four Link Electromechanical Co Ltd
Priority date: 2017-06-29
Filing date: 2017-06-29
Publication date: 2018-04-03
Anticipated expiration: 2027-06-29

Abstract

The utility model discloses a kind of expansion valve component, including the first electric expansion valve, at least one muffler part and the first filter element, muffler part includes path section, connector and solder portion, connector outer wall includes multiple first pressure contact portions, first pressure contact portion is compressed with path section inwall and set, and electrolysis is formed between the first pressure contact portion and path section inwall or is crimped a little；And/or path section inwall includes multiple second pressure contact portions, the second pressure contact portion is compressed with connector outer wall and set, and electrolysis is formed between the second pressure contact portion and connector outer wall or is crimped a little；Space between connector outer wall and path section inwall sets at least part of solder portion.Muffler part of the present utility model can carry out noise reduction to caused noise in electric expansion valve or pipeline, it is welded and fixed by itself or is welded and fixed by pipeline between muffler part and electric expansion valve in addition so that whole expansion valve component is as an entirety not only with noise reduction but also with throttling function.

Description

Expansion valve component

Technical field

Refrigerating field is the utility model is related to, is in particular related to air-conditioning system.

Background technology

Compressor, restricting element, indoor external heat exchanger and other parts are generally required in existing air-conditioning system.Root Different according to indoor and outdoor operating mode, compressor rotary speed is different, and degree of supercooling difference occurs after flowing through heat exchanger in refrigerant, when flowing through heat exchanger Refrigerant when being gas-liquid two-phase, when the refrigerant in gas-liquid two-phase enters expansion valve, because liquid refrigerants and gaseous state refrigerant flow rate are poor Causing the throttle mechanism crushing at electric expansion valve to change, vibration occurs and produces refrigerant sound, refrigerant sound is incoming indoor via pipeline, Room noise is so produced, influences Consumer's Experience.

Utility model content

The purpose of this utility model is to provide a kind of expansion valve component solve noise problem caused by coolant throttle.

To achieve the above object, adopt the following technical scheme that：A kind of expansion valve component, including the first electric expansion valve, extremely In a muffler part and the first filter element less, first electric expansion valve and the muffler part, the first filter element It is at least one be welded and fixed, the muffler part includes path section, and the path section is located at the both ends of the muffler part, The muffler part includes connector, the connector inner hollow, and the connector is at least partially disposed at the path section And it is welded and fixed with the path section through stove；

The connector outer wall includes multiple first pressure contact portions, and first pressure contact portion is compressed with the path section inwall and set Put, electrolysis is formed between first pressure contact portion and the path section inwall or is crimped a little；And/or the path section inwall bag Include multiple second pressure contact portions, second pressure contact portion is compressed with the connector outer wall and set, second pressure contact portion with it is described Electrolysis or crimping point are formed between connector outer wall；The muffler part includes solder portion, the connector outer wall with it is described Space between path section inwall sets at least part of the solder portion, and institute is set between the adjacent electrolysis or crimping point State at least part of solder portion.

Above-mentioned technical proposal of the present utility model includes muffler part and electric expansion valve, and muffler part can be to electronic expansion Caused noise carries out noise reduction in valve or pipeline, be welded and fixed in addition by itself between muffler part and electric expansion valve or It is welded and fixed by pipeline so that whole expansion valve component, not only with noise reduction but also with throttling function, and disappears as an entirety Part part is not only facilitated and is welded and fixed with miscellaneous part, and also ensured preferably by connector, the setting of solder portion Welding quality.

Brief description of the drawings

Fig. 1 is a kind of dimensional structure diagram of embodiment of the utility model；

Fig. 2 is the dimensional structure diagram of the utility model another embodiment；

Fig. 3 is a kind of dimensional structure diagram of embodiment of muffler part；

Fig. 4 is the diagrammatic cross-section in A-A faces in muffler part shown in Fig. 3；

Fig. 5 is a kind of partial cutaway schematic of embodiment of the muffler part of position shown in I in Fig. 4；

Fig. 6 is the partial cutaway schematic of second of embodiment of the muffler part of position shown in I in Fig. 4；

Fig. 7 is the partial cutaway schematic of the third embodiment of the muffler part of position shown in I in Fig. 4；

Fig. 8 is the partial cutaway schematic of the 4th kind of embodiment of the muffler part of position shown in I in Fig. 4；

Fig. 9 is a kind of dimensional structure diagram of embodiment of connector；

Figure 10 is the diagrammatic cross-section in B-B faces shown in Fig. 9；

Figure 11 is the diagrammatic cross-section of muffler part another embodiment；

Figure 12 is the diagrammatic cross-section of another embodiment of muffler part；

Figure 13 is the diagrammatic cross-section of the another embodiment of connector；

Figure 14 is the diagrammatic cross-section of muffler part another embodiment；

Figure 15 is the close-up schematic view of C in Figure 14；

Figure 16 is the planar structure schematic diagram of muffler part other embodiment；

Figure 17 is the planar structure schematic diagram of the other embodiment of muffler part；

Figure 18 is a kind of part section enlarged diagram of embodiment of muffler part shown in Figure 16；

Figure 19 is the part section enlarged diagram of second of embodiment of muffler part shown in Figure 16；

Figure 20 is the part section enlarged diagram of the third embodiment of muffler part shown in Figure 16；

Figure 21 is the part section enlarged diagram of the 4th kind of embodiment of muffler part shown in Figure 16；

Figure 22 is a kind of part section enlarged diagram of embodiment of muffler part shown in Figure 17；

Figure 23 is the part section enlarged diagram of second of embodiment of muffler part shown in Figure 17；

Figure 24 is the part section enlarged diagram of the third embodiment of muffler part shown in Figure 17；

Figure 25 is the part section enlarged diagram of the 4th kind of embodiment of muffler part shown in Figure 17；

Figure 26 is the dimensional structure diagram of another embodiment of the present utility model；

Figure 27 is the dimensional structure diagram of another embodiment of the present utility model；

Figure 28 is the dimensional structure diagram of other embodiment of the present utility model.

Figure 29 is the schematic cross-section of connector shown in Fig. 9；

Figure 30 is the schematic cross-section in the other embodiment D-D directions in fig.9 of connector；

Figure 31 is the schematic cross-section in the other embodiment D-D directions in fig.9 of connector；

Figure 32 is the schematic cross-section in the other embodiment D-D directions in fig.9 of connector；

Figure 33 is the schematic cross-section of path section；

Figure 34 is a kind of schematic cross-section of the embodiment edge of path section parallel to path section axis；

Figure 35 is schematic cross-section of the path section other embodiment edge parallel to path section axis；

Figure 36 is schematic cross-section of the path section other embodiment edge parallel to path section axis.

Embodiment

Reference picture 1, Fig. 1 illustrate a kind of embodiment of expansion valve component, and expansion valve component 100 includes the first electricity Sub- expansion valve 10, muffler part 20, the first filter element 30, the first electric expansion valve 10 and muffler part 20, the first filter house At least one in part 30 is welded and fixed, and the first electric expansion valve 10 includes the first adapter 11, the second adapter 12, the first adapter 11 First interface portion 110 is set, and the second adapter 12 sets second interface portion 120.When first electric expansion valve works, fluid is therefrom One interface enters, and is left from another interface, the first electric expansion valve is internally provided with restricting element, by the first electronics Expansion valve is controlled, and can adjust restriction effect, to adjust the flow of the first electronic expansion valve outlet.

First filter element 30 includes main part 31, first connecting portion 32 and second connecting portion 33, the connection of main part 31 the One connecting portion 32, second connecting portion 33, first connecting portion 32, the internal diameter of second connecting portion 33 are less than main part 31；Reference picture 1, the One connecting portion 32 is connected with first interface portion 110, and second connecting portion 33 is connected with external devices or pipeline, and second interface portion is with disappearing Part part connects, and caused noise is through muffler part noise reduction in electric expansion valve and pipeline, so that not influenceing users'comfort.Make For other embodiment, reference picture 2, Fig. 2 shows the structural representation of expansion valve component 200, and first connecting portion 32 connects with first Oral area 110 is connected, and second connecting portion 33 is connected with muffler part 20.

Reference picture 3- Figure 10, muffler part 20 include main part 21, connector 22 and solder portion 23, and main part 21 includes big Footpath section 211, path section 212, path section 212 are located at the both ends of main part 21, and big footpath section 211 axially connects path section 212, big footpath The internal diameter of section 211 is more than the internal diameter of path section 212, such as the internal diameter of big footpath section is more than twice of path section internal diameter.As illustrated, Big footpath section is columnar structured, and certainly, big footpath section is alternatively non-regular tubular, for example, big footpath section can be that middle part is relatively large, The relatively small structure in both sides, or can also be by two or more relatively large, relatively small structures in both sides in middle part It is linked to be, or big footpath section radial section is alternatively the regular geometric shapes such as triangle, rectangle, ellipse, or other are irregular several What shape.Muffler part may be integrally formed, and can also be welded by each branch point.Main part material can be copper or stainless Steel, connecting piece material can be copper or stainless steel.Main part can generally be manufactured with copper material, and copper material welds easy but copper material Price is higher；Preferably to reduce production cost, main part can use steel to manufacture, such as stainless steel, although the weldering of steel It is higher to connect difficulty, but according to content described herein, is designed by the special construction of connector and main part, can obviously reduce assembling Difficulty, the installation of expansion valve component and refrigeration system other pipelines is not influenceed.

Herein, unless otherwise specified, described end is included apart from one section of part of port.

As a kind of embodiment, main part 21 includes big footpath section 211, path section 212 and inside contracts section 213, inside contracts section 213 Including choke 2131 and expansion mouth 2132, choke 2131 is connected with path section 212, and expansion mouth 2132 connects with big footpath section 211 Connect, inside contract section 213 and big footpath section 211 and path section 212, the so fluid from path section entrance are connected with similar horn-like shape, Such as gas-liquid two-phase, flow through when inside contracting section, caliber starts to become big, and when then flowing to path section through big footpath section, caliber diminishes, so Noise caused by reducing fluid resonant, reach the purpose of expansion valve component noise elimination.

As other embodiment, big footpath section can be directly connected to path section, i.e., enter from the fluid moment that path section enters Big footpath section, the fluid moment for then flowing through big footpath section enter path section so that fluid is in the big intracavitary stream to diminish again of the small change of caliber It is dynamic, realize the purpose of noise elimination.

Connector 22 is welded and fixed with path section 212, to ensure welding quality, the path section 212 and/or the connection Part 22 includes limiting section, and the limiting section includes the first confined planes, and the solder portion is at least partially arranged at the limiting section, and The solder portion is at least partly oppositely arranged or contacted setting with first confined planes.

Specifically, connector 22 and solder portion 23 are included as a kind of embodiment, reference picture 5- Fig. 7, muffler part 20, The inner hollow of connector 22, the inner chamber of connector 22 are connected with big footpath section 211, and at least part and the path section 212 of connector 22 are welded Connect fixation；Path section 212 includes limiting section 2121, and limiting section 2121 includes the first confined planes 2122, and solder portion 23 is at least partly Limiting section 2121 is arranged at, and at least part of solder portion 23 is oppositely arranged or contacted setting with the first confined planes 2122.Connecting In the assembling process of part and main part, solder, such as weld-ring are positioned over limiting section, then again coordinated connector and main part Connection, and it is welded, melt solder and flow into path section inwall and connector outer wall, so that both are fixed, preferably protect Demonstrate,prove welding quality.More specifically, path section 212 has from the axially extending body 2124 in the port 2123 of path section 212, this Body portion 2124 coordinates with connector 22, and connector 22 has the first end 222 and second end 223 being oppositely arranged, the first end End 222 is inside path section 212, and second end 223 is located at the port position of muffler part 20, and the first confined planes 2122 limit The axial location of first weld part 23, limiting section 2121 are located at the inwall of path section 212, the first confined planes 2122 and path section 212 Port 2123 is oppositely arranged, and the first end 222 of the opposite joints 22 of the first confined planes 2122 is away from the port of path section 212 2123, being positioned over the solder of limiting section 2121 can flow between the outer wall of connector 22 and body 2124 after thawing, i.e. solder Portion is extended between connector outer wall and body, both is kept fixed.Reference picture 4, Fig. 5, limiting section for example can be spacing Step；As other embodiment, reference picture 7, limiting section is alternatively stopper slot, in place with the institute of second end 223 of connector Put and compare, stopper slot is relatively distant from the position of port 2123 of path section.

As other embodiment, reference picture 8, connector 22 includes limiting section 221, and limiting section 221 is located at connector 22 The position of first end 222, limiting section 221 include the first confined planes 2211, and limiting section 221 includes the first confined planes 2211, solder Portion 23 is at least partially arranged at limiting section 221, and at least part of solder portion 23 is oppositely arranged or contacted with the first confined planes 2211 Set, limiting section 221 be located at connector 22 and relative proximity first end 222, and limiting section 221 includes the first sidepiece 2212 and the Two sidepieces 2213, so that, as inward direction, the outer wall of the first sidepiece 2212 from connector 22 is inside towards the axis direction of connector 22 Extension, the first confined planes 2211 are located at the first sidepiece 2212, and the second sidepiece 2213 axially prolongs with the junction of the first sidepiece 2212 certainly Stretch, solder portion 23 is at least partially disposed at the first sidepiece 2212 and the second sidepiece 2213；First sidepiece 2212 and the second sidepiece 2213 be in step sample.In the assembling process of connector and main part, solder, such as weld-ring are placed in limiting section first, then The connector for carrying weld-ring is connected with main part, and it is welded, melts solder and flows into path section inwall with being connected Between part outer wall, both is kept fixed, ensure preferably welding quality.

To ensure that the solder melted is flowed between path section inwall and connector outer wall, muffler part includes gap, gap Between path section inwall and connector outer wall, the gap is used for the part for accommodating solder portion, and wherein gap is too small, can It can make it that solder can not effectively be permeated, gap is excessive, and solder may penetrate path section port, thereby result in outside solder portion Dew, influences welding quality.Herein, the length of the solder portion between the connector outer wall and the path section inwall is More than 2 times of the path section wall thickness, the length of the solder portion between the connector outer wall and the path section inwall For more than 2 times of the connector wall thickness, the solder portion is between the connector outer wall and the path section inwall Length is 5mm-15mm, and width of the solder portion between the connector outer wall and the path section inwall is 0.025mm-0.15mm, width of the solder portion between the connector outer wall and the path section inwall are the weldering Material portion so that the welding of path section and connector is relatively reliable, and is protected perpendicular to the distance of the connector axis direction Demonstrate,proving solder, effect is permeated as expected.

More specifically, reference picture 9, connector 22 include groove 224, and groove 224 is located at least part outer wall of connector 22, And groove 224 is oppositely arranged with path section 212, connector 22 includes being formed the bottom wall part 225 of groove 224, and solder portion 23 is from limiting section 2121st, 221 extend along bottom wall part 225；Solder portion 23 is throughout groove inner chamber so that the outer wall of connector 22 and the inwall of path section 212 Between sealing and both fixed setting.

As other embodiment, path section inwall is provided with groove, and groove extends to path section end from limiting section correspondence position Portion, solder portion extend from limiting section along wall portion.

Certainly, connector and path section inwall all may be provided with groove, under the tight fit of connector and path section, solder portion In the groove set full of connector and path section inwall so that connector outer wall and path section inner wall sealing and fixation.Connector When being assembled with path section, connector can be fixed with path section with interference fit, therefore can pass through the setting of groove so that solder exists Melting state is more easily entered between connector outer wall and path section inwall, keeps both fixations, while ensure one Fixed welding quality.

Herein, it is inside and outside be relative expansion valve module inner chamber for, such as path section inwall refers to the side wall towards inner chamber.

Reference picture 9, Figure 29-Figure 32, connector 22 are at least partially disposed at the path section and welded with the path section stove, The connector outer wall 2240 includes multiple first pressure contact portions 2242, and it is the to define perpendicular to the section of the axis of connector 22 One section, first pressure contact portion 2242 include positioned at first section first crimping subdivision 2244, define parallel to The section of the axis of connector 22 is the second section, and first pressure contact portion 2242 includes the positioned at second section Two crimping subdivisions 2246, the second crimping subdivision 2246 are extended in single axis or set in two or more interval Put, the first crimping subdivision 2244 is arranged at intervals in two or more or in single circumferentially disposed；First pressure contact portion 2242 with The inwall of path section 212, which compresses, to be set, formed with crimping between first pressure contact portion 2242 and the inwall of path section 212 Face or crimping point, muffler part 20 include solder portion, and space sets weldering between connector outer wall 2240 and the path section inwall At least part in material portion, at least part of solder portion is set, in the axial direction of the connector between adjacent electrolysis or crimping point Direction, the solder portion is from the connector port perimeter position curve or linear extension to the path section port perimeter position Put.

Reference picture 5, reference picture 33- Figure 36, the inwall 2250 of path section 212 include multiple second pressure contact portions 2252, fixed Justice is the 3rd section perpendicular to the section of the axis of path section 212, and second pressure contact portion 2252 includes being located at the described 3rd The 3rd crimping subdivision 2254 in section, the section defined parallel to the axis of path section 212 is the 4th section, described second Pressure contact portion 2252 includes the 4th crimping subdivision 2256 positioned at the 4th section, and the 4th crimping subdivision 2256 is in single Individual axis be extended or be arranged at intervals in two or more, it is described 3rd crimping subdivision 2254 in two or more be arranged at intervals or In single circumferentially disposed；Second pressure contact portion 2252 compresses with the outer wall of connector 22 to be set, the second pressure contact portion 2252 and connector 22 Include solder portion formed with electrolysis or crimping point, muffler part between outer wall, connector outer wall and the path section inwall it Between space set solder portion at least part, and adjacent electrolysis or crimping point between set solder portion at least part, even The axial direction of fitting, solder portion is from connector port perimeter position curve or linear extension to path section port perimeter position.

Specifically, first pressure contact portion is extended in the form of convex tendon and along connector axis direction, and first Pressure contact portion is positioned apart from discretely setting in the form of salient point in the connector outer wall, or first pressure contact portion with multiple Put；Second pressure contact portion is extended in the form of convex tendon and along path section axis direction, and the second pressure contact portion is with multiple Path section inwall is arranged at every ground, or second pressure contact portion is discretely set in the form of salient point.

It should be known that the upper illustrated shape of figure is not the limitation to the first pressure contact portion, the second pressure contact portion etc., the first crimping Portion, the second pressure contact portion can have variously-shaped.In first pressure contact portion and the second pressure contact portion, or the first pressure contact portion and path section Wall, compress and set between the second pressure contact portion and connector outer wall so that connector can snugly cross stove weldering with path section Connect, it is not necessary to it is fixed using frock in addition, convenient operation.Structure shown on figure is schematic construction, is not influenceing signal In the case of, certain structures can be saved, for example, Figure 29-Figure 36 is only to illustrate, the hatching in figure is with omission.

Reference picture 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, the external diameter of connector 22 are less than or equal to path section 212 Internal diameter, connector can in the form of sleeve, can also connecting tube form, connector 22 includes flange part 226, flange part 226 Positioned at the position of 212 port of path section 2123, flange part 226 includes positioning table 2261 and root 2262, and positioning table 2261 is from flange The root 2262 in portion 226 outwards circumferentially extends, and positioning table 2261 offsets with the end of path section 212, contributes to solder heated It is not easy to run that the solder between connector outer wall and path section inwall is heated to be moved to path to outside path section, particularly avoiding in journey Outside section port, so that overall structure is more aesthetically pleasing.Solder portion is located inside path section, and the bare area of solder portion is relatively It is small, so as to reduce the corrosion of the potential difference of solder portion and air contact；The welding of connector and path section only needs once simultaneously It can complete, relative to gas brazing, avoid connector, the multiple welding of path section, the uniformity of solder portion is relatively preferable, So improve welding quality so that the connection between product component is more reliable, and once welding also simplify welding sequence, carry High efficiency.

Specifically, reference picture 5- Figure 14, connector is two, the of one of connector and the first electric expansion valve 10 One interface portion 110 connects, and for ease of more clearly distinguishing structure, it is the to define the connector being connected with first interface portion 110 A connection piece 22a, define other connector and be welded and fixed for the second connector 22b, the first connector 22a with path section, the Two connector 22b are welded and fixed with path section 212,

Any one of the first connector 22a in following：

(1) reference picture 11, Figure 12, one end and the path section 212 of the first connector 22a are welded and fixed, described The first connector 22a other end is connected with first filter element 30 or is connected with the first interface portion 110；First Connector connects the first filter element and path section in the form of connecting tube, or, the first connector connection path section and first The first interface portion of electric expansion valve, during welding, by by muffler part and the first connector cross after stove welding again with other portions Part assembles.

(2) reference picture 14, Figure 15, the first connector 22a are welded and fixed with the path section 212, the expansion valve Component 100 includes the first connecting tube 50, and at least part of first connecting tube 50 is welded with the first connector 22a inwalls It is fixed；In the form of sleeve or axle sleeve, outer wall and the path section inwall of the first connector are welded and fixed first connector, and first connects Fitting first be connected pipe furnace with muffler part, first and welded, formation overall structure, the first connecting tube other end and the first filter element or First interface portion is welded and fixed, convenient for assembly.

And/or any one of the second connector 22b in following：

(1) reference picture 11, Figure 12, one end and the path section 212 of the second connector 22b are welded and fixed；Second Connector 22b can be the form of connecting tube, and the second connector 22b one end and path are fixedly installed, and the second connector 22b's is another Welded with external structure one end.

(2) reference picture 14, Figure 15, the second connector 22b are welded and fixed with the path section 212, the expansion valve Component 100 includes the second connecting tube 70, and at least part of second connecting tube 70 is welded with the second connector 22b inwalls It is fixed.In this way, the second connector, in the form of sleeve or axle sleeve, the second connector outer wall is welded and fixed with path section inwall, the Two connectors are connected pipe furnace weldering with muffler part, second, form overall structure, and the second connecting tube other end can fill with external structure Match somebody with somebody, it is easy to assembly.

Herein, for structural relation is more clearly illustrated, the first connecting tube and the second connecting tube are specially defined, should Understand, the first connecting tube, the second connecting tube are not limited to pipe fitting in the narrow sense, are welded in the first connecting tube and first interface portion In the case of fixation, the first connecting tube can be substituted by the first adapter；It is welded and fixed in the first connecting tube and the first filter element In the case of, the first connecting tube can be substituted by the connecting portion of the first filter element, and analogue.

Reference picture 5- Fig. 8, connector 22 include body 227 and stopper protrusion 228, and stopper protrusion 228 is from body 227 Extend to the inner chamber of connector 22, the connector 22 includes second end 223, and stopper protrusion 228 is located at the position of first end 222 Place, stopper protrusion 228 are protruded from body 227 towards the inner chamber of connector 22, and stopper protrusion 228 has the second confined planes 2280, The phase of first end 222 of second confined planes 2280 and connector 22 is back to setting, and the second confined planes are towards the port of path section. Connector is under the form of sleeve, connector needs to weld, and the setting of stopper protrusion is efficiently reduced in connector with connecting tube Solder between wall and connection pipe outer wall melts the inwall for flowing into connecting tube, and the depth of connector is stretched into available for restriction connecting tube Spend position.

Expansion valve component 100 includes stop valve 40, and stop valve 40 includes valve port portion 401, the second connector 22b and path Section 212 is welded and fixed, and expansion valve component includes the second connecting tube 70, in one end of the second connecting tube 70 and the second connector 22b Wall is welded and fixed, and the other end of the second connecting tube is welded and fixed with the valve port portion 401, or reference picture 16, and described second connects One end of adapter 70 is welded and fixed with the second connector 22b inwalls, and the other end of the second connecting tube 70 sets the 3rd connector 71, 3rd connector 71 and a part of inwall of the second connecting tube 70 are welded and fixed, and the 3rd connector 71 and the welding of valve port portion 401 are solid It is fixed；Or reference picture 17, the second connector 22b one end and path section 212 are welded and fixed, the second connector 22b other end It is welded and fixed with valve port portion 401；Or second connector 22b one end be welded and fixed with path section 212, the second connector 22b The other end the 4th connector 72 is set, a part of inwall of the 4th connector 72 and the second connector 22b is welded and fixed, 4th connector 72 is welded and fixed with valve port portion 401.Because the 3rd connector 71, the 4th connector 72 are in channel interior, for just In the position of the apparent connector 71 of expression the 3rd, the 4th connector 72, the 3rd connection is probably illustrated in Figure 16, Figure 17 The position of part 71, the 4th connector 72 on muffler part, its particular location reference picture 18- Figure 25.

3rd connector 71, the 4th connector 72 structure with reference to the first connector, the second connector, referring for example to Fig. 5- Figure 14, due to similar with the first connector, the second connector in structure, same or similar parts title and numbering use equally Title and numbering.Second connecting tube or the second connector include solder portion 23 and limiting section 2121, or the 3rd connector or 4th connector includes limiting section 221, and the second connecting tube 70 sets limiting section 2121, the first confined planes 2122, or the 3rd connects Fitting sets limiting section 221, the first confined planes 2211, and limiting section 221,2121 includes the first confined planes 2211,2122, solder portion 23 are at least partially arranged at limiting section 221,2121, and at least part of solder portion 23 and the first confined planes of limiting section 221,2121 2211st, 2122 it is oppositely arranged or contacts setting.

Reference picture 9, the 3rd connector 71 include the groove 224 of one and the above, and groove 224 is located at the 3rd connector 71 at least Outer wall, and groove 224 is oppositely arranged with the inwall of the second connecting tube 70, the 3rd connector 71 includes forming the bottom wall part of groove 224 225, solder portion 23 extends along bottom wall part 225；And/or the inwall of the second connecting tube 70 is provided with the groove 224 of one and the above, the The inwall of two connecting tube 70 includes forming the bottom wall part 225 of groove 224, and groove 224 extends to the end of path section 212, and solder portion 23 limits certainly Position portion 221,2121 extends along bottom wall part 225；

4th connector 72 includes the groove 224 of one and the above, and groove 224 is located at outside at least part of the 4th connector 72 Wall, and groove 224 is oppositely arranged with the second connector 22b inwalls, the 4th connector 72 includes forming the bottom wall part of groove 224, solder Portion 23 extends along bottom wall part 225；And/or second connector 22b inwalls be provided with the groove 224 of one and the above, the second connection Part 22b inwalls include being formed the bottom wall part 225 of groove 224, and groove 224 extends to the end of path section 212, and solder portion 23 is from limiting section 221st, 2121 extend along bottom wall part 225；

Reference picture 9, Figure 29-Figure 36, although these figures are the signals to the grade of connector 22, the 3rd connector and second The relation of the relation of connecting tube, the 4th connector and the second connector can also refer to Fig. 9, Figure 29-Figure 36, and identical title can join According to reference described above.The 3rd connector outer wall includes multiple first pressure contact portions, defines perpendicular to the connection The section of part axis is the first section, and first pressure contact portion includes the first crimping subdivision positioned at first section, fixed Justice be the second section parallel to the section of the connector axis, and first pressure contact portion includes being located at the of second section Two crimping subdivisions, the second crimping subdivision are extended in single axis or are arranged at intervals in two or more, and described the One crimping subdivision is arranged at intervals in two or more or in single circumferentially disposed；First pressure contact portion is connected inside pipe wall with second and compressed Set, form electrolysis between the first pressure contact portion and the second connection inside pipe wall or crimp a little；And/or the second connection inside pipe wall Including multiple second pressure contact portions, it is the 3rd section to define perpendicular to the section of the second connecting tube axis, second crimping Portion includes the 3rd crimping subdivision positioned at the 3rd section, defines section parallel to the second connecting tube axis as the Four sections, second pressure contact portion include the 4th crimping subdivision positioned at the 4th section, the 4th crimping subdivision Be extended in single axis or be arranged at intervals in two or more, the 3rd crimping subdivision be arranged at intervals in two or more or In single circumferentially disposed；Second pressure contact portion and the 3rd connector outer wall, which compress, to be set, the second pressure contact portion and the 3rd connector outer wall Between formed with electrolysis or crimping point, the second connecting tube include solder portion, the 3rd connector outer wall and second connecting tube Space between inwall sets at least part of solder portion, and at least portion of solder portion is set between adjacent electrolysis or crimping point Point；

Or the 4th connector outer wall includes multiple first pressure contact portions, defines perpendicular to the 4th connector axis Section be the first section, first pressure contact portion includes the first crimping subdivision positioned at first section, defines parallel It is the second section in the section of the 4th connector axis, first pressure contact portion includes second positioned at second section Subdivision is crimped, the second crimping subdivision is extended or is arranged at intervals in two or more, described first in single axis Subdivision is crimped to be arranged at intervals in two or more or in single circumferentially disposed；First pressure contact portion is compressed with the second connector inwall and set Put, formed with electrolysis or crimped a little between the first pressure contact portion and the second connector inwall；And/or the second connector inwall Including multiple second pressure contact portions, it is the 3rd section to define perpendicular to the section of the second connector axis, second crimping Portion includes the 3rd crimping subdivision positioned at the 3rd section, defines section parallel to the second connector axis as the Four sections, second pressure contact portion include the 4th crimping subdivision positioned at the 4th section, the 4th crimping subdivision Be extended in single axis or be arranged at intervals in two or more, the 3rd crimping subdivision be arranged at intervals in two or more or In single circumferentially disposed；Second pressure contact portion and the second connector inwall, which compress, to be set, the second pressure contact portion and the second connector inwall Between formed with electrolysis or crimping point；Second connector includes solder portion, the second connector inwall and described the Space between four connector inwalls sets at least part of the solder portion, and is set between the adjacent electrolysis or crimping point Put at least part of the solder portion；

Preferably, first pressure contact portion is set in the form of convex tendon and along the 3rd connector axis direction extension Put, and first pressure contact portion with it is multiple be positioned apart from the 3rd connector outer wall, or first pressure contact portion with The form of salient point is discretely set；Second pressure contact portion prolongs in the form of convex tendon and along the described second connection tube axis direction Setting is stretched, second pressure contact portion is positioned apart from connecting inside pipe wall, or second pressure contact portion in described second with multiple Discretely set in the form of salient point；In the axial direction of the 3rd connector, the solder portion is from the 3rd connector Single port peripheral position curve or linear extension are to the 3rd connector another port peripheral position；

Preferably, first pressure contact portion is set in the form of convex tendon and along the 4th connector axis direction extension Put, and first pressure contact portion with it is multiple be positioned apart from the 4th connector outer wall, or first pressure contact portion with The form of salient point is discretely set；Second pressure contact portion prolongs in the form of convex tendon and along the second connector axis direction Setting is stretched, second pressure contact portion is positioned apart from the second connector inwall, or second pressure contact portion with multiple Discretely set in the form of salient point；In the axial direction of second connector, the solder portion is from the 4th connector Single port peripheral position curve or linear extension are to the 4th connector another port peripheral position；

It is preferably located at the 3rd connector outer wall and the described second length for connecting the solder portion between inside pipe wall is More than 2 times of the second connection thickness of pipe wall, between the 3rd connector outer wall and the second connection inside pipe wall The length of solder portion is more than 2 times of the 3rd connector wall thickness, the solder portion be located at the 3rd connector outer wall and Length between the second connection inside pipe wall is 5mm-15mm, the solder portion be located at the 3rd connector outer wall with it is described Width between second connection inside pipe wall is 0.025mm-0.15mm, and the solder portion is located at the 3rd connector outer wall and institute State distance of the width between the second connection inside pipe wall for the solder portion perpendicular to the 3rd connector axis direction；

The length for the solder portion being preferably located between the 4th connector outer wall and the second connector inwall is More than 2 times of the second connector wall thickness, between the 4th connector outer wall and the second connector inwall The length of solder portion is more than 2 times of the 4th connector wall thickness, the solder portion be located at the 4th connector outer wall and Length between the second connector inwall is 5mm-15mm, the solder portion be located at the 4th connector outer wall with it is described Width between second connector inwall is 0.025mm-0.15mm, and the solder portion is located at the 4th connector outer wall and institute State distance of the width between the second connector inwall for the solder portion perpendicular to the 4th connector axis direction；

Reference picture 9, Figure 18-Figure 21, the external diameter of the 3rd connector 71 are less than or equal to the internal diameter of the second connecting tube 70；3rd connects Fitting 71 includes flange part 226, and the flange part 226 of the 3rd connector 71 is located at the port position of the 3rd connector 71, the 3rd connection The flange part 226 of part 71 includes positioning table 2261 and root 2262, and the positioning table 2261 of the 3rd connector 71 is from the 3rd connector The root 2262 of 71 flange part 226 outwards circumferentially extends, the positioning table 2261 of the 3rd connector 71 and the end of the 3rd connector 71 Portion offsets；

3rd connector 71 includes first end 222 and second end 223, the first end of the 3rd connector 71 222 Inside the second connecting tube 70, the 3rd connector 71 includes body 227 and stopper protrusion 228, the 3rd connector 71 it is spacing Convex portion 228 is located at the opening position of first end 222 of the 3rd connector 71, and the stopper protrusion 228 of the 3rd connector 71 connects from the 3rd The body 227 of fitting 71 extends to the inner chamber of the 3rd connector 71, and the stopper protrusion 228 of the 3rd connector 71 is spacing including second Face 2280, the second confined planes 2280 of the 3rd connector 71 and the phase of first end 222 of the 3rd connector 71 are back to setting；

Reference picture 9, Figure 22-Figure 25, the external diameter of the 4th connector 72 are less than or equal to the second connector 22b internal diameters；4th Connector 72 includes flange part 226, and the flange part 226 of the 4th connector 72 is located at the port position of the 4th connector 72, and the 4th connects The flange part 226 of fitting 72 includes positioning table 2261 and root 2262, and the positioning table 2261 of the 4th connector 72 connects from the 4th The root 2262 of the flange part 226 of part 72 outwards circumferentially extends, the connector 72 of positioning table 2261 and the 4th of the 4th connector 72 End offsets；

4th connector 72 includes first end 222 and second end 223, the first end of the 4th connector 72 222 Inside the second connector 22b, the 4th connector 72 includes body 227 and stopper protrusion 228, the 4th connector 72 it is spacing Convex portion 228 is located at the opening position of first end 222 of the 4th connector 72, and the stopper protrusion 228 of the 4th connector 72 connects from the 4th The body 227 of fitting 72 extends to the inner chamber of the 4th connector 72, and the stopper protrusion 228 of the 4th connector 72 is spacing including second Face 2280, the second confined planes 2280 of the 4th connector 72 and the phase of first end 222 of the 4th connector 72 are back to setting.

As a kind of embodiment, the first electric expansion valve 10 includes the first adapter 11 and the second adapter 12, the first adapter 11 set first interface portion 110, and the second adapter 12 sets second interface portion 120；First filter element 30 includes main part 31, the One connecting portion 32 and second connecting portion 33, the connection of main part 31 first connecting portion 32, second connecting portion 33, first connecting portion 32, The internal diameter of second connecting portion 33 is less than main part 31；At least part outer wall of the end of first connecting portion 32 welds with the inwall of connector 22 Fixation is connect, the gap of 33 and first adapter of second connecting portion 11 coordinates, and second connecting portion 33 is welded and fixed with the first adapter 11；Or The gap of 32 and second adapter of first connecting portion 12 coordinates, and first connecting portion 32 is welded and fixed with the second adapter 12, the first adapter 11 At least part of outer wall be welded and fixed with the inwall of connector 22.

First filter element includes screen pack, and filtering net week portion is fixedly installed with main part, and the first filter element can be used for Impurity in filter pipeline, impurity is avoided to enter the first electric expansion valve so that the first electronic expansion valve controls are more accurate.

Reference picture 26, expansion valve component include the second filter element 80, and the second filter element 80 connects first electronics The second interface portion 120 of expansion valve, the first of the first filter element 30 connection electric expansion valve 10 of muffler part 20 and first connects Oral area 110, the first filter element 30, the second filter element 80 include main part 31, first connecting portion 32 and second connecting portion 33, Main part 31 connects first connecting portion 32, second connecting portion 33, and first connecting portion 32, the internal diameter of second connecting portion 33 are less than main part 31；At least part outer wall of the end of the first connecting portion 32 of first filter element 30 is welded and fixed with the inwall of connector 22, the The gap of 33 and first adapter of second connecting portion 11 of one filter element 30 coordinates, the second connecting portion 33 of the first filter element 30 with First adapter 11 is welded and fixed；The gap of 32 and second adapter of first connecting portion 12 of second filter element 80 coordinates, the second filtering The first connecting portion 32 of part 80 is welded and fixed with the second adapter 12.The first adapter, the second adapter of first electric expansion valve are equal Filter element is connected, so when the expansion valve component is used for refrigeration system, electric expansion valve is applicable to refrigerant flowing side To changeable system.

Reference picture 27, Figure 28, Figure 27, Figure 28 show the other embodiment of expansion valve component, and expansion valve component includes the One electric expansion valve 10 and the second electric expansion valve 90, the first electric expansion valve 10 include the first adapter 11 and the second adapter 12, First adapter 11 sets first interface portion 110, and the second adapter 12 sets second interface portion 120；Second electric expansion valve 90 includes 3rd adapter 91 and the 4th adapter 92, the 3rd adapter 91 set the 3rd interface portion 910, and the 4th adapter 94 sets the 4th interface portion 920, the first filter element 30 includes main part 31, first connecting portion 32 and second connecting portion 33, and the connection of main part 31 first connects Socket part 32, second connecting portion 33, first connecting portion 32, the internal diameter of second connecting portion 33 are less than main part 31；Expansion valve component includes First connectedness 60a and the second connectedness 60b, the first connectedness 60a connection first interfaces portion 110, the 3rd interface portion 910 and Muffler part 20, the second connectedness 60b connection second interfaces portion 120, the 4th interface portion 920；The connection of first filter element 30 disappears The connectedness 60a of part part 20 and first；Or first filter element 30 be connected with the second connectedness 60b.

First connectedness 60a, the second connectedness 60b have the first auxiliary section 61, the second auxiliary section 62 and the 3rd auxiliary section 63, the first auxiliary section 61, the second auxiliary section 62 connect with the inner chamber of the 3rd auxiliary section 63, and the first of the first connectedness 60a coordinates Portion 61 is welded and fixed with the first adapter 11, and the first connectedness 60a the second auxiliary section 62 and the 3rd adapter 91 are welded and fixed, and first Connectedness 60a the 3rd auxiliary section 63 and second connecting portion 33 is welded and fixed, and the of the connectedness 60a of second connecting portion 33 and first The gap of three auxiliary section 63 coordinates, and at least part outer wall and the inwall of connector 22 of the end of first connecting portion 32 are welded and fixed；The Two connectedness 60b the first auxiliary section 61 is welded and fixed with the second adapter 12, the second connectedness 60b the second auxiliary section 62 and Four adapters 92 are welded and fixed.

First connectedness 60a, the second connectedness 60b are, for example, three-port structure, to cause the first connectedness, the second connectedness With the first electric expansion valve 10, that the second electric expansion valve 90 is connected is more convenient, expansion valve component includes bend pipe, the first connectedness The first auxiliary section connected with the first interface portion of the first electric expansion valve by bend pipe, the second auxiliary section of the first connectedness with 3rd interface portion of the second electric expansion valve is connected by bend pipe, the first auxiliary section and the first electric expansion valve of the second connectedness Second interface portion connected by bend pipe, the second auxiliary section of the second connectedness leads to the 4th interface portion of the second electric expansion valve Cross bend pipe connection.The end of bend pipe with the first connectedness, the second connectedness by being welded and fixed, the end of bend pipe and the first electronics By being welded and fixed, the both ends of bend pipe are respectively protruding into the adapter of connectedness and electric expansion valve for expansion valve, the second electric expansion valve, And adapter gap of the both ends of bend pipe respectively with connectedness, electric expansion valve coordinates, and weld.Wherein, bend pipe, the first connection Part, the material of the second connectedness can be copper, in order to weld.

Herein, connection includes being directly connected to and being indirectly connected with, i.e. the connection of two parts, including the two parts directly company of contact Connect, also can be by setting other parts to be attached.

It should be noted that：Above example is merely to illustrate the utility model and not limited described by the utility model Technical scheme, such as isotropy defines to "front", "rear", "left", "right", " on ", " under ", although this specification reference The above embodiments have been carried out being described in detail to the utility model, still, it will be understood by those within the art that, Person of ordinary skill in the field still can be mutually combined to the utility model, be changed or equivalent substitution, and one The technical scheme for not departing from spirit and scope of the present utility model and its improvement are cut, all should cover will in right of the present utility model In the range of asking.

Claims

1. a kind of expansion valve component, including the first electric expansion valve, at least one muffler part and the first filter element, described One electric expansion valve is welded and fixed with least one in the muffler part, the first filter element, and the muffler part includes Path section, the path section are located at the both ends of the muffler part, and the muffler part includes connector, in the connector Portion is hollow, and the connector is at least partially disposed at the path section and is welded and fixed with the path section through stove；

The connector outer wall includes multiple first pressure contact portions, and first pressure contact portion is compressed with the path section inwall and set, Electrolysis is formed between first pressure contact portion and the path section inwall or is crimped a little；And/or the path section inwall includes Multiple second pressure contact portions, second pressure contact portion are compressed with the connector outer wall and set, second pressure contact portion and the company Electrolysis or crimping point are formed between fitting outer wall；The muffler part includes solder portion, the connector outer wall with it is described small Space between the section inwall of footpath sets at least part of the solder portion, between the adjacent electrolysis or crimping point described in setting At least part of solder portion.

2. expansion valve component according to claim 1, it is characterised in that：Definition is perpendicular to the section of the connector axis For the first section, first pressure contact portion includes the first crimping subdivision positioned at first section, defined parallel to described The section of connector axis is the second section, and first pressure contact portion includes the second crimping sub-portion positioned at second section Point, the second crimping subdivision is extended in single axis or is arranged at intervals in two or more, the first crimping sub-portion Divide and be arranged at intervals in two or more or in single circumferentially disposed；

Definition is the 3rd section perpendicular to the section of the path section axis, and second pressure contact portion includes being located at described 3rd section The 3rd crimping subdivision in face, the section defined parallel to the path section axis is the 4th section, the second pressure contact portion bag The 4th crimping subdivision positioned at the 4th section is included, the 4th crimping subdivision is extended in single axis or in two It is arranged at intervals more than individual, the 3rd crimping subdivision is arranged at intervals in two or more or in single circumferentially disposed；

First electric expansion valve includes first interface portion and second interface portion；First filter element connects the noise elimination Part and the first interface portion；Or first filter element is connected with the second interface portion；The first interface portion It is connected with one of path section；First pressure contact portion is set in the form of convex tendon and along connector axis direction extension Put, and first pressure contact portion is positioned apart from the connector outer wall with multiple, or first pressure contact portion is with salient point Form discretely set；Second pressure contact portion is extended in the form of convex tendon and along the path section axis direction, Second pressure contact portion is positioned apart from the path section inwall with multiple, or second pressure contact portion is in the form of salient point Discretely set；In the axial direction of the connector, the solder portion is from the connector port perimeter position curve or directly Line extends to the path section port perimeter position；

The path section and/or the connector include limiting section, and the limiting section includes the first confined planes, and the solder portion is extremely Small part is arranged at the limiting section, and the solder portion is at least partly oppositely arranged or contacted with first confined planes and sets Put, the length of the solder portion between the connector outer wall and the path section inwall is 2 times of the path section wall thickness More than, the length of the solder portion between the connector outer wall and the path section inwall is the 2 of the connector wall thickness More than times, length of the solder portion between the connector outer wall and the path section inwall is 5mm-15mm, described Width of the solder portion between the connector outer wall and the path section inwall is 0.025mm-0.15mm, the solder Width of the portion between the connector outer wall and the path section inwall is the solder portion perpendicular to the connector shaft The distance in line direction；

The area that first pressure contact portion accounts for the perisporium of the connector is less than 8%, and/or second pressure contact portion account for it is described The area of the perisporium of path section is less than 8%, is coordinated wherein the perisporium of the connector is the connector with the path section The outer wall of the connector at place, the perisporium of the path section are interior for the connector and the path section at the path section cooperation Wall.

3. expansion valve component according to claim 1, it is characterised in that：The path section has from the path section port Axially extending body, at least part of the body and the connector coordinate, and the connector has first end And second end, the first end are located inside the path section, second end is located at the port position of the muffler part；

The path section and/or the connector include limiting section, and the limiting section includes the first confined planes, and the solder portion is extremely Small part is arranged at the limiting section, and the solder portion is at least partly oppositely arranged or contacted with first confined planes and sets Put, the length of the solder portion between the connector outer wall and the path section inwall is 2 times of the path section wall thickness More than, the length of the solder portion between the connector outer wall and the path section inwall is the 2 of the connector wall thickness More than times, length of the solder portion between the connector outer wall and the path section inwall is 5mm-15mm, described Width of the solder portion between the connector outer wall and the path section inwall is 0.025mm-0.15mm, the solder portion Width between the connector outer wall and the path section inwall is the solder portion perpendicular to the connector axis The distance in direction；

The limiting section is located at the path section inwall, and first confined planes are oppositely arranged with the path section port, described The first end of the relatively described connector of first confined planes is away from the path section port；Or the limiting section is located at the company First end described in fitting and relative proximity, the limiting section include the first sidepiece and the second sidepiece, the first sidepiece and the second side Portion is in step sample, using towards the connector axis direction as inward direction, outer wall of first sidepiece from the connector Extend internally, first confined planes are located at first sidepiece, second sidepiece from the first sidepiece junction axle To extension, the solder portion is at least partially disposed at first sidepiece and the second sidepiece.

4. according to the expansion valve component described in claim 1 or 2 or 3, it is characterised in that：The muffler part includes inside contracting section, The section that inside contracts includes expansion mouth and choke, and the muffler part includes big footpath section, and axially connection is described small for the big footpath section Footpath section, and the big footpath section internal diameter is more than the path section, the expansion mouth is connected with the big footpath section, the choke and institute State path section connection；The connector includes flange part, and the flange part is located at the path section port position, the flange part Including positioning table and root, the positioning table outwards circumferentially extends from the root of the flange part, the positioning table with it is described small Footpath section end offsets.

5. expansion valve component according to claim 1 or 2, it is characterised in that：

The connector has first end and second end, and the first end is located inside the path section, second end Positioned at the port position of the muffler part；

The connector includes second end, and the second end is located at the port position of the muffler part, the connector Including body and stopper protrusion, the stopper protrusion is located at the first end opening position, and the stopper protrusion is from described Body portion extends to the connector inner chamber, and the stopper protrusion includes the second confined planes, second confined planes and the path The port of section is oppositely arranged.

6. expansion valve component according to claim 1, it is characterised in that：The muffler part includes big footpath section, described big Footpath section axially connects the path section, and the big footpath section internal diameter is more than the path section, the connector inner chamber with it is described greatly Footpath section connection, the connector is two, and at least part of the connector is welded and fixed with the path section, first electricity Sub- expansion valve includes first interface portion and second interface portion；First filter element connects the muffler part and described first Interface portion；Or first filter element is connected with the second interface portion；The first interface portion and one of path Section connection；It is the first connector to define the connector being connected with the first interface portion, defines other connector and connects for second Fitting；

Any one of first connector in following：

(1) one end of first connector is welded and fixed with the path section, the other end of first connector with it is described First filter element is connected or is connected with the first interface portion；

(2) external diameter of first connector is less than or equal to the path section internal diameter, first connector and the path Section is welded and fixed, and the expansion valve component includes the first connecting tube, and at least part of first connecting tube connects with described first Fitting inwall is welded and fixed；

And/or any one of second connector in following：

(1) one end of second connector is welded and fixed with the path section；

(2) external diameter of second connector is less than or equal to the path section internal diameter, second connector and the path Section is welded and fixed, and the expansion valve component includes the second connecting tube, and at least part of second connecting tube connects with described second Fitting inwall is welded and fixed.

7. expansion valve component according to claim 2, it is characterised in that：The muffler part includes big footpath section, described big Footpath section axially connects the path section, and the big footpath section internal diameter is more than the path section, the connector inner chamber with it is described greatly The connection of footpath section, the connector are two, and at least part of the connector is welded and fixed with the path section, definition with it is described The connector of first interface portion connection is the first connector, and it is the second connector to define other connector；

Any one of first connector in following：

And/or any one of second connector in following：

(1) one end of second connector is welded and fixed with the path section；

8. expansion valve component according to claim 3, it is characterised in that：The muffler part includes big footpath section, described big Footpath section axially connects the path section, and the big footpath section internal diameter is more than the path section, the connector inner chamber with it is described greatly Footpath section connection, the connector is two, and at least part of the connector is welded and fixed with the path section, first electricity Sub- expansion valve includes first interface portion and second interface portion；First filter element connects the muffler part and described first Interface portion；Or first filter element is connected with the second interface portion；The first interface portion and one of path Section connection；It is the first connector to define the connector being connected with the first interface portion, defines other connector and connects for second Fitting；

Any one of first connector in following：

And/or any one of second connector in following：

(1) one end of second connector is welded and fixed with the path section；

9. expansion valve component according to claim 4, it is characterised in that：The muffler part includes big footpath section, described big Footpath section axially connects the path section, and the big footpath section internal diameter is more than the path section, the connector inner chamber with it is described greatly Footpath section connection, the connector is two, and at least part of the connector is welded and fixed with the path section, first electricity Sub- expansion valve includes first interface portion and second interface portion；First filter element connects the muffler part and described first Interface portion；Or first filter element is connected with the second interface portion；The first interface portion and one of path Section connection；It is the first connector to define the connector being connected with the first interface portion, defines other connector and connects for second Fitting；

Any one of first connector in following：

And/or any one of second connector in following：

(1) one end of second connector is welded and fixed with the path section；

10. expansion valve component according to claim 5, it is characterised in that：The muffler part includes big footpath section, described big Footpath section axially connects the path section, and the big footpath section internal diameter is more than the path section, the connector inner chamber with it is described greatly Footpath section connection, the connector is two, and at least part of the connector is welded and fixed with the path section, first electricity Sub- expansion valve includes first interface portion and second interface portion；First filter element connects the muffler part and described first Interface portion；Or first filter element is connected with the second interface portion；The first interface portion and one of path Section connection；It is the first connector to define the connector being connected with the first interface portion, defines other connector and connects for second Fitting；

Any one of first connector in following：

And/or any one of second connector in following：

(1) one end of second connector is welded and fixed with the path section；

11. according to the expansion valve component any one of claim 6-10, it is characterised in that：The expansion valve component includes Stop valve, the stop valve include valve port portion；Second connector is welded and fixed with the path section, the expansion valve component Including the second connecting tube, one end of second connecting tube is welded and fixed with the second connector inwall, second connection The other end of pipe is welded and fixed with the valve port portion, or one end of second connecting tube is welded with the second connector inwall Connect fixation, the other end of second connecting tube sets the 3rd connector, at least part of the 3rd connector and described the Two connection inside pipe walls are welded and fixed, and the 3rd connector is welded and fixed with the valve port portion；Or second connector One end is welded and fixed with the path section, and the other end of second connector is welded and fixed with the valve port portion；It is or described One end of second connector is welded and fixed with the path section, and the other end of second connector sets the 4th connector, institute At least part and the second connector inwall for stating the 4th connector are welded and fixed, the 4th connector and the valve port portion It is welded and fixed.

12. expansion valve component according to claim 11, it is characterised in that：The 3rd connector outer wall includes multiple the One pressure contact portion, it is the first section to define perpendicular to the section of the connector axis, and first pressure contact portion is included positioned at described The first crimping subdivision in the first section, the section defined parallel to the connector axis is the second section, first pressure Socket part includes the second crimping subdivision positioned at second section, and the second crimping subdivision is extended in single axis Or be arranged at intervals in two or more, the first crimping subdivision is arranged at intervals in two or more or in single circumferentially disposed, institute State the first pressure contact portion and be connected inside pipe wall compression setting with described second, and first pressure contact portion is connected inside pipe wall with described second Between formed with electrolysis or crimping point；And/or it is described second connection inside pipe wall include multiple second pressure contact portions, define perpendicular to The section of the second connecting tube axis is the 3rd section, and second pressure contact portion includes the 3rd pressure positioned at the 3rd section Subdivision is connect, the section defined parallel to the second connecting tube axis is the 4th section, and second pressure contact portion includes being located at The 4th crimping subdivision in the 4th section, the 4th crimping subdivision are extended in single axis or in two or more It is arranged at intervals, the 3rd crimping subdivision is arranged at intervals in two or more or in single circumferentially disposed；Second pressure contact portion Compress and set with the 3rd connector outer wall, formed with crimping between second pressure contact portion and the 3rd connector outer wall Face or crimping point, second connecting tube include solder portion, the 3rd connector outer wall with described second be connected inside pipe wall it Between space at least part of the solder portion is set, and the solder portion is set between the adjacent electrolysis or crimping point At least partly；

Or the 4th connector outer wall includes multiple first pressure contact portions, cutting perpendicular to the 4th connector axis is defined Face is the first section, and first pressure contact portion includes the first crimping subdivision positioned at first section, defined parallel to institute The section for stating the 4th connector axis is the second section, and first pressure contact portion includes the second crimping positioned at second section Subdivision, the second crimping subdivision are extended in single axis or are arranged at intervals in two or more, first crimping Subdivision is arranged at intervals in two or more or in single circumferentially disposed；First pressure contact portion and wall pressure in second connector It is tight to set, electrolysis is formed between first pressure contact portion and the second connector inwall or is crimped a little；And/or described second Connector inwall includes multiple second pressure contact portions, and it is the 3rd section to define perpendicular to the section of the second connector axis, institute Stating the second pressure contact portion includes crimping subdivision positioned at the 3rd of the 3rd section, defines parallel to the second connector axis Section be the 4th section, second pressure contact portion includes the 4th crimping subdivision positioned at the 4th section, the described 4th Crimping subdivision is extended in single axis or is arranged at intervals in two or more, and the 3rd crimping subdivision is in two or more It is arranged at intervals or in single circumferentially disposed；Second pressure contact portion is compressed with the 4th connector outer wall and set, and described second Electrolysis is formed between pressure contact portion and the 4th connector outer wall or is crimped a little；Second connector includes solder portion, institute State at least part that the space between the second connector inwall and the 4th connector inwall sets the solder portion, the phase At least part of the solder portion is set between adjacent electrolysis or crimping point；

First pressure contact portion is extended in the form of convex tendon and along the 3rd connector axis direction, and described first Pressure contact portion with it is multiple be positioned apart from it is discrete in the form of salient point in the 3rd connector outer wall, or first pressure contact portion Ground is set；Second pressure contact portion is extended in the form of convex tendon and along the described second connection tube axis direction, and described the Two pressure contact portions with it is multiple be positioned apart from described second connect inside pipe wall, or second pressure contact portion in the form of salient point from Set scatteredly；In the axial direction of the 3rd connector, the solder portion is from the 3rd connector Single port peripheral position Curve or linear extension are to the 3rd connector another port peripheral position；

First pressure contact portion is extended in the form of convex tendon and along the 4th connector axis direction, and described One pressure contact portion is positioned apart from the 4th connector outer wall with multiple, or first pressure contact portion in the form of salient point from Set scatteredly；Second pressure contact portion is extended in the form of convex tendon and along the second connector axis direction, described Second pressure contact portion is positioned apart from the second connector inwall with multiple, or second pressure contact portion is in the form of salient point Discretely set；In the axial direction of second connector, the solder portion is from the 4th connector Single port periphery position Curve or linear extension are put to the 4th connector another port peripheral position；

The length of solder portion between the 3rd connector outer wall and the second connection inside pipe wall connects for described second More than 2 times of adapter wall thickness, the length of the solder portion between the 3rd connector outer wall and the second connection inside pipe wall Spend for more than 2 times of the 3rd connector wall thickness, the solder portion is located at the 3rd connector outer wall and connected with described second Length between nozzle inner wall is 5mm-15mm, and the solder portion is located at the 3rd connector outer wall and second connecting tube Width between inwall is 0.025mm-0.15mm, and the solder portion is located at the 3rd connector outer wall and is connected with described second Distance of the width for the solder portion perpendicular to the 3rd connector axis direction between inside pipe wall；

The length of solder portion between the 4th connector outer wall and the second connector inwall is the described second company More than 2 times of fitting wall thickness, the length of the solder portion between the 4th connector outer wall and the second connector inwall Spend for more than 2 times of the 4th connector wall thickness, the solder portion is located at the 4th connector outer wall and connected with described second Length between fitting inwall is 5mm-15mm, and the solder portion is located at the 4th connector outer wall and second connector Width between inwall is 0.025mm-0.15mm, and the solder portion is located at the 4th connector outer wall and is connected with described second Distance of the width for the solder portion perpendicular to the 4th connector axis direction between part inwall；

3rd connector includes flange part, and the flange part of the 3rd connector is located at the 3rd connector port position Put, the flange part of the 3rd connector includes positioning table and root, and the positioning table of the 3rd connector connects from the described 3rd The root of the flange part of fitting outwards circumferentially extends, positioning table and the 3rd connector end phase of the 3rd connector Support；

4th connector includes flange part, and the flange part of the 4th connector is located at the 4th connector port position Put, the flange part of the 4th connector includes positioning table and root, and the positioning table of the 4th connector connects from the described 4th The root of the flange part of fitting outwards circumferentially extends, positioning table and the 4th connector end phase of the 4th connector Support；

3rd connector includes first end and second end, and the first end of the 3rd connector is located at described second Inside connecting tube, the 3rd connector includes body and stopper protrusion, and the stopper protrusion of the 3rd connector is located at institute State the first end opening position of the 3rd connector, the body of the stopper protrusion of the 3rd connector from the 3rd connector Extend to the 3rd connector inner chamber, the stopper protrusion of the 3rd connector includes the second confined planes, the 3rd connection The first end of second confined planes of part and the 3rd connector is mutually back to setting；

4th connector includes first end and second end, and the first end of the 4th connector is located at described second Inside connector, the 4th connector includes body and stopper protrusion, and the stopper protrusion of the 4th connector is located at institute State the first end opening position of the 4th connector, the body of the stopper protrusion of the 4th connector from the 4th connector Extend to the 4th connector inner chamber, the stopper protrusion of the 4th connector includes the second confined planes, the 4th connection The first end of second confined planes of part and the 4th connector is mutually back to setting.

13. the expansion valve component according to claim 1 or 3, it is characterised in that：The connector is two, the connection At least part of part is welded and fixed with the path section, and first electric expansion valve includes first interface portion and second interface Portion；First filter element connects the muffler part and the first interface portion；Or first filter element and institute State the connection of second interface portion；The first interface portion is connected with one of path section；Definition is connected with the first interface portion Connector be the first connector, it is the second connector to define other connector；First electric expansion valve includes first Adapter and the second adapter, first adapter set the first interface portion, and second adapter sets the second interface portion； First filter element includes main part, first connecting portion and second connecting portion, main part connection first connection Portion, second connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；The end of the first connecting portion At least part outer wall in portion is welded and fixed with the first connector inwall, the second connecting portion and the described first adapter gap Coordinate, the second connecting portion is welded and fixed with the described first adapter；Or the first connecting portion is matched somebody with somebody with the second adapter gap Close, the first connecting portion is welded and fixed with the described second adapter, at least part of the described first outer wall taken over and described the A connection piece inwall is welded and fixed.

14. expansion valve component according to claim 4, it is characterised in that：The connector is two, the connector At least partly it is welded and fixed with the path section, first electric expansion valve includes first interface portion and second interface portion；Institute State the first filter element and connect the muffler part and the first interface portion；Or first filter element and described second Interface portion connects；The first interface portion is connected with one of path section；Define the connection being connected with the first interface portion Part is the first connector, and it is the second connector to define other connector；First electric expansion valve include first adapter and Second adapter, first adapter set the first interface portion, and second adapter sets the second interface portion；Described One filter element includes main part, first connecting portion and second connecting portion, and the main part connects the first connecting portion, second Connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；The end of the first connecting portion is at least Outer wall is welded and fixed with the first connector inwall, and the second connecting portion coordinates with the described first adapter gap, institute Second connecting portion is stated to be welded and fixed with the described first adapter；It is described or the first connecting portion coordinates with the second adapter gap First connecting portion is welded and fixed with the described second adapter, at least part of the outer wall of first adapter and first connector Inwall is welded and fixed.

15. expansion valve component according to claim 5, it is characterised in that：The connector is two, the connector At least partly it is welded and fixed with the path section, first electric expansion valve includes first interface portion and second interface portion；Institute State the first filter element and connect the muffler part and the first interface portion；Or first filter element and described second Interface portion connects；The first interface portion is connected with one of path section；Define the connection being connected with the first interface portion Part is the first connector, and it is the second connector to define other connector；First electric expansion valve include first adapter and Second adapter, first adapter set the first interface portion, and second adapter sets the second interface portion；Described One filter element includes main part, first connecting portion and second connecting portion, and the main part connects the first connecting portion, second Connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；The end of the first connecting portion is at least Outer wall is welded and fixed with the first connector inwall, and the second connecting portion coordinates with the described first adapter gap, institute Second connecting portion is stated to be welded and fixed with the described first adapter；It is described or the first connecting portion coordinates with the second adapter gap First connecting portion is welded and fixed with the described second adapter, at least part of the outer wall of first adapter and first connector Inwall is welded and fixed.

16. the expansion valve component according to Claims 2 or 3, it is characterised in that：The expansion valve component includes the second filtering Part, second filter element connect the second interface portion of first electric expansion valve, the first filter element connection The first interface portion of the muffler part and first electric expansion valve；First electric expansion valve include first adapter and Second adapter, first adapter set the first interface portion, and second adapter sets the second interface portion；Described One filter element, the second filter element include main part, first connecting portion and second connecting portion, the main part connection described the One connecting portion, second connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；First filtering At least part outer wall of the end of the first connecting portion of part is welded and fixed with the connector inwall, first filter element Second connecting portion with described first adapter gap coordinate, the second connecting portion of first filter element with described first adapter It is welded and fixed；The first connecting portion of second filter element coordinates with the described second adapter gap, second filter element First connecting portion with described second adapter be welded and fixed；

The expansion valve component includes the second electric expansion valve, and second electric expansion valve connects including the 3rd interface portion and the 4th Oral area, first filter element include main part, first connecting portion and second connecting portion, the connection of main part connection first Portion, second connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；The expansion valve component includes First connectedness and the second connectedness, first connectedness connect the first interface portion, the 3rd interface portion and described disappeared Part part, second connectedness connect the second interface portion, the 4th interface portion；Disappear described in the first filter element connection Part part and first connectedness；Or first filter element is connected with second connectedness；

First connectedness, the second connectedness have the first auxiliary section, the second auxiliary section and the 3rd auxiliary section, and described first matches somebody with somebody Conjunction portion, the second auxiliary section connect with the inner chamber of the 3rd auxiliary section, the first auxiliary section of first connectedness and described the One interface portion is connected, and the second auxiliary section of first connectedness is connected with the 3rd interface portion, first connectedness 3rd auxiliary section is welded and fixed with the second connecting portion, the second connecting portion and the 3rd auxiliary section of first connectedness Gap coordinates, and at least part outer wall of the end of the first connecting portion is welded and fixed with the connector inwall；Described second First auxiliary section of connectedness is connected with the second interface portion, and the second auxiliary section of second connectedness connects with the described 4th Oral area connects.

17. expansion valve component according to claim 4, it is characterised in that：The expansion valve component includes the second filter house Part, second filter element connect the second interface portion of first electric expansion valve, and first filter element connects institute State the first interface portion of muffler part and first electric expansion valve；First electric expansion valve includes the first adapter and the Two adapters, first adapter set the first interface portion, and second adapter sets the second interface portion；Described first Filter element, the second filter element include main part, first connecting portion and second connecting portion, the main part connection described first Connecting portion, second connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；First filter house At least part outer wall of the end of the first connecting portion of part is welded and fixed with the connector inwall, first filter element Second connecting portion with described first adapter gap coordinate, the second connecting portion of first filter element with described first adapter It is welded and fixed；The first connecting portion of second filter element coordinates with the described second adapter gap, second filter element First connecting portion with described second adapter be welded and fixed；

18. expansion valve component according to claim 5, it is characterised in that：The expansion valve component includes the second filter house Part, second filter element connect the second interface portion of first electric expansion valve, and first filter element connects institute State the first interface portion of muffler part and first electric expansion valve；First electric expansion valve includes the first adapter and the Two adapters, first adapter set the first interface portion, and second adapter sets the second interface portion；Described first Filter element, the second filter element include main part, first connecting portion and second connecting portion, the main part connection described first Connecting portion, second connecting portion, the first connecting portion, second connecting portion internal diameter are less than the main part；First filter house At least part outer wall of the end of the first connecting portion of part is welded and fixed with the connector inwall, first filter element Second connecting portion coordinates with the described first adapter gap, and the second connecting portion of first filter element is welded with the described first adapter Connect fixation；The first connecting portion of second filter element coordinates with the described second adapter gap, second filter element First connecting portion is welded and fixed with the described second adapter；