CN104864641B - Capillary tube and transition tube assembly and air conditioner with same - Google Patents
Capillary tube and transition tube assembly and air conditioner with same Download PDFInfo
- Publication number
- CN104864641B CN104864641B CN201410060538.1A CN201410060538A CN104864641B CN 104864641 B CN104864641 B CN 104864641B CN 201410060538 A CN201410060538 A CN 201410060538A CN 104864641 B CN104864641 B CN 104864641B
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- CN
- China
- Prior art keywords
- tube
- capillary
- transition
- transition tube
- capillary tube
- Prior art date
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Links
- 230000007704 transition Effects 0.000 title claims abstract description 78
- 238000009826 distribution Methods 0.000 claims abstract description 25
- 238000003466 welding Methods 0.000 abstract description 14
- 239000012466 permeate Substances 0.000 abstract description 3
- 230000004907 flux Effects 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a capillary tube and transition tube assembly and an air conditioner with the same, wherein the capillary tube and transition tube assembly comprises a capillary tube (2) and a transition tube (1), the transition tube (1) comprises a transition tube body (12) and a connecting part (11) arranged at the connecting end of the transition tube body (12) and the capillary tube (2); the connecting part (11) comprises a pipe distribution section (111) matched with the outer wall of the capillary tube (2) and a clamping opening part (112) arranged on the outer wall of the pipe distribution section (111), and a hollow gap of the clamping opening part (112) is communicated with the inside of the pipe distribution section (111). According to the capillary tube and transition tube assembly provided by the invention, the inner wall of the matched tube section is matched with the outer wall of the capillary tube; the welding flux permeates between the outer wall of the capillary tube and the inner wall of the pipe distribution section from the clamping opening gap of the clamping opening part and is filled, and the welding stability of the capillary tube and the pipe distribution section is effectively ensured.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a capillary tube and transition tube assembly and an air conditioner with the same.
Background
In an air conditioner, the capillary tube mainly plays a role in throttling. At present, a capillary tube is in butt joint with a transition tube, the tube end of the transition tube is formed by cold punching or spinning necking, the formed tube opening is circular, and the inner wall of the formed tube opening is matched with the outer wall of the capillary tube.
However, due to the action of gravity, the boss on the capillary tube is in contact with the tube end of the transition tube to form a closed annular contact surface without a reserved gap, and in the welding process of welding the capillary tube and the transition tube, the reserved gap prevents the solder from spreading normally, so that the solder stays at the tube opening of the transition tube or overflows, the welding quality is seriously affected, and the welding stability is not high.
Therefore, how to improve the welding stability is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention discloses a capillary tube and transition tube assembly to improve welding stability. The invention also provides an air conditioner with the capillary tube and the transition tube assembly.
In order to achieve the purpose, the invention provides the following technical scheme:
a capillary and transition tube assembly comprises a capillary and a transition tube, wherein the transition tube comprises a transition tube body and a connecting part arranged at the connecting end of the transition tube body and the capillary;
the connecting part comprises a pipe distribution section matched with the outer wall of the capillary and a clamping opening arranged on the outer wall of the pipe distribution section, and the hollow gap of the clamping opening is communicated with the inside of the pipe distribution section.
Preferably, in the capillary tube and transition tube assembly, the length of the nip portion is the same as the length of the piping segment.
Preferably, in the capillary tube and transition tube assembly, a central line of the clamping opening portion is perpendicular to a central line of the pipe distribution section.
Preferably, in the capillary tube and transition tube assembly, the number of the clamping openings is two, and the clamping openings are symmetrically arranged on the pipe distribution section.
Preferably, in the capillary tube and transition tube assembly, the capillary tube is provided with a positioning protrusion.
Preferably, in the capillary tube and transition tube assembly, the positioning protrusion has a diameter larger than an inner diameter of the pipe fitting section and smaller than an outer diameter of the pipe fitting section.
Preferably, in the capillary tube and transition tube assembly, the pipe distribution section and the nip portion are of an integral structure formed by stamping.
Preferably, in the capillary tube and transition tube assembly, the nip portion is a U-shaped nip.
Preferably, in the capillary tube and transition tube assembly, a width of the hollow gap at the nip portion ranges from 0.05mm to 0.15 mm.
The invention also provides an air conditioner, which comprises the capillary tube and the transition tube assembly, wherein the capillary tube and the transition tube assembly are any one of the capillary tube and the transition tube assembly.
According to the technical scheme, the outer diameter of the capillary tube is consistent with the inner diameter of the tubing section, so that the inner wall of the tubing section is matched with the outer wall of the capillary tube; in the welding process, the welding flux permeates between the outer wall of the capillary tube and the inner wall of the pipe distribution section from the clamping opening gap of the clamping opening part and is filled, so that the welding stability of the capillary tube and the pipe distribution section is effectively ensured.
The invention also provides an air conditioner, which comprises the capillary tube and the transition tube assembly, wherein the capillary tube and the transition tube assembly are any one of the capillary tube and the transition tube assembly. Since the capillary tube and the transition tube assembly have the above advantages, an air conditioner having the capillary tube and the transition tube assembly should also have the same technical effects, and will not be described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a transition duct provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a capillary tube and transition tube assembly according to an embodiment of the present invention.
Wherein,
the connecting structure comprises a transition pipe-1, a connecting part-11, a pipe matching section-111, a clamping opening part-112, a transition pipe body-12, a capillary pipe-2 and a positioning bulge-21.
Detailed Description
The invention discloses a capillary tube and transition tube assembly for improving welding stability. The invention also provides an air conditioner with the capillary tube and the transition tube assembly.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a transition pipe according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a capillary tube and transition tube assembly according to an embodiment of the present invention.
As shown in fig. 1 and fig. 2, the capillary and transition tube assembly provided in the embodiment of the present invention includes a capillary 2 and a transition tube 1, where the transition tube 1 includes a transition tube body 12 and a connecting portion 11 disposed at a connecting end of the transition tube body 12 and the capillary 2; the connection portion 11 includes a pipe section 111 that is fitted to the outer wall of the capillary 2, and a clamp portion 112 provided on the outer wall of the pipe section 111, and a hollow gap of the clamp portion 112 communicates with the inside of the pipe section 111.
According to the capillary tube and transition tube assembly provided by the embodiment of the invention, the outer diameter of the capillary tube 2 is consistent with the inner diameter of the tubing section 111, so that the inner wall of the tubing section 111 is matched with the outer wall of the capillary tube 2; in the welding process, the solder permeates between the outer wall of the capillary tube 2 and the inner wall of the pipe section 111 from the clamping gap of the clamping opening part 112 and is filled, so that the welding stability of the capillary tube 2 and the pipe section 111 is effectively ensured.
As shown in fig. 2, the length of the pinch portion 112 is the same as the length of the pipe section 111. The solder spreads over the capillary 2 and the pipe segment 111 through the hollow gap of the nip portion 112, and the stability of soldering is further improved.
Further, the nip center line of the nip portion 112 is perpendicular to the center line of the pipe segment 111.
As shown in fig. 1, in the present embodiment, the number of the nip portions 112 is two and the nip portions are symmetrically disposed on the pipe distribution section 111. The number of the clamp openings 112 may also be set to be plural, and the clamp openings are uniformly distributed or distributed at a certain included angle along the circumferential direction of the pipe distribution section 111, and the specific number of the clamp openings 112 and the distribution structure thereof are not limited and are all within the protection range.
As shown in fig. 2, in order to improve the positioning effect of the capillary 2, a positioning protrusion 21 is provided on the capillary 2.
Preferably, the diameter of the positioning projection 21 is larger than the inner diameter of the pipe section 111 and smaller than the outer diameter of the pipe section 111.
The pipe distribution section 111 and the clamping opening 112 are of an integral structure formed by stamping. Preferably, one end of the transition pipe 1 is placed in a stamping die, and the connecting portion 11 is formed by stamping operation, i.e. the pipe section 111 and the clamping opening portion 112 are in an integral structure; the transition pipe part which is not punched is the transition pipe body 12, namely the connecting part 11 and the transition pipe body 12 are of the same integral structure. Through the arrangement, the overall strength of the transition pipe 1 is effectively ensured.
As shown in fig. 1, the nip portion 112 is a U-shaped nip. Through punching, the partial outer wall of the end part of the transition pipe part is radially extruded to form a clamping opening part 112, and one end of the clamping opening part 112, which is far away from the pipe distribution section 111, is of an arc transition structure, so that the clamping opening part 112 forms a U-shaped clamping opening.
Further, in order to ensure the penetration of the solder into the gap, the width of the hollow gap of the nip portion 112 is set to a value ranging from 0.05mm to 0.15 mm. Preferably, the width of the hollow slit is about 0.1 mm.
The embodiment of the invention also provides an air conditioner, which comprises the capillary tube and the transition tube assembly, wherein the capillary tube and the transition tube assembly are any one of the capillary tube and the transition tube assembly. Since the capillary tube and the transition tube assembly have the above advantages, an air conditioner having the capillary tube and the transition tube assembly should also have the same technical effects, and will not be described in detail herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A capillary and transition tube assembly comprises a capillary tube (2) and a transition tube (1), and is characterized in that the transition tube (1) comprises a transition tube body (12) and a connecting part (11) arranged at the connecting end of the transition tube body (12) and the capillary tube (2);
the connecting part (11) comprises a pipe distribution section (111) matched with the outer wall of the capillary (2) and a clamping opening part (112) arranged on the outer wall of the pipe distribution section (111), and a hollow gap of the clamping opening part (112) is communicated with the inside of the pipe distribution section (111);
the outer diameter of the capillary tube (2) is consistent with the inner diameter of the pipe distribution section (111), so that the inner wall of the pipe distribution section (111) is matched with the outer wall of the capillary tube (2);
the length of the clamping opening part (112) is the same as that of the pipe distribution section (111).
2. The capillary and transition tube assembly of claim 1, wherein a nip centerline of the nip portion (112) is perpendicular to a centerline of the tube section (111).
3. The capillary and transition tube assembly of claim 1, wherein the number of the pinch-off portions (112) is two and symmetrically disposed on the tube distribution section (111).
4. Capillary and transition tube assembly according to claim 1, characterized in that the capillary (2) is provided with positioning projections (21).
5. The capillary and transition tube assembly of claim 4, wherein the locating boss (21) has a diameter that is greater than an inside diameter of the tube section (111) and less than an outside diameter of the tube section (111).
6. The capillary and transition tube assembly of any of claims 1-5, wherein the tube piece (111) and the pinch portion (112) are a stamped, one-piece structure.
7. The capillary and transition tube assembly of claim 6, wherein the nip portion (112) is a U-shaped nip.
8. The capillary and transition tube assembly of claim 7, wherein the width of the hollow gap of the nip portion (112) ranges from 0.05mm to 0.15 mm.
9. An air conditioner comprising a capillary tube and transition tube assembly, wherein the capillary tube and transition tube assembly is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410060538.1A CN104864641B (en) | 2014-02-21 | 2014-02-21 | Capillary tube and transition tube assembly and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410060538.1A CN104864641B (en) | 2014-02-21 | 2014-02-21 | Capillary tube and transition tube assembly and air conditioner with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104864641A CN104864641A (en) | 2015-08-26 |
| CN104864641B true CN104864641B (en) | 2018-05-18 |
Family
ID=53910653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410060538.1A Active CN104864641B (en) | 2014-02-21 | 2014-02-21 | Capillary tube and transition tube assembly and air conditioner with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104864641B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021209156A1 (en) * | 2021-08-20 | 2023-02-23 | BSH Hausgeräte GmbH | Refrigeration device, refrigerant circuit for a refrigeration device and method for connecting a first tube and a capillary tube for a refrigerant circuit of a refrigeration device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2765114Y (en) * | 2004-11-17 | 2006-03-15 | 淳安千岛湖康盛制冷管路研究开发有限公司 | Welding seam free transition tube equipped between dry filter and capillary |
| CN201043835Y (en) * | 2007-05-24 | 2008-04-02 | 广东美的电器股份有限公司 | Capillary tube for air conditioner |
| CN102072599A (en) * | 2011-01-24 | 2011-05-25 | 合肥美的荣事达电冰箱有限公司 | Refrigeration equipment and transition pipe for same |
| CN203719272U (en) * | 2014-02-21 | 2014-07-16 | 珠海格力电器股份有限公司 | Capillary tube and transition tube assembly and air conditioner with same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1078270A (en) * | 1996-09-04 | 1998-03-24 | Showa Alum Corp | Refrigerant blow-off sound preventing structure of capillary tube |
| CN101995120A (en) * | 2009-08-13 | 2011-03-30 | 上海杜氏实业有限公司 | Refrigeration pipeline capable of reducing noise of refrigerator |
| CN102147175B (en) * | 2011-04-19 | 2012-11-28 | 江苏白雪电器股份有限公司 | Connecting structure of evaporator and capillary tube |
| CN203068888U (en) * | 2012-12-24 | 2013-07-17 | 宁波奥克斯空调有限公司 | Capillary tube component for heat pump air conditioner |
-
2014
- 2014-02-21 CN CN201410060538.1A patent/CN104864641B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2765114Y (en) * | 2004-11-17 | 2006-03-15 | 淳安千岛湖康盛制冷管路研究开发有限公司 | Welding seam free transition tube equipped between dry filter and capillary |
| CN201043835Y (en) * | 2007-05-24 | 2008-04-02 | 广东美的电器股份有限公司 | Capillary tube for air conditioner |
| CN102072599A (en) * | 2011-01-24 | 2011-05-25 | 合肥美的荣事达电冰箱有限公司 | Refrigeration equipment and transition pipe for same |
| CN203719272U (en) * | 2014-02-21 | 2014-07-16 | 珠海格力电器股份有限公司 | Capillary tube and transition tube assembly and air conditioner with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104864641A (en) | 2015-08-26 |
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