CN104864641B - Capillary tube and transition tube assembly and air conditioner with same - Google Patents

Abstract

The invention discloses a capillary tube and transition tube assembly and an air conditioner having the same. The capillary tube and transition tube assembly includes a capillary tube (2) and a transition tube (1), and the transition tube (1) includes a transition tube body (12 ) and the connecting part (11) provided at the connecting end of the transition pipe body (12) and the capillary (2); the connecting part (11) includes a piping section that matches the outer wall of the capillary (2) (111) and a clamping portion (112) disposed on the outer wall of the piping section (111), the hollow gap of the clamping portion (112) communicating with the interior of the piping segment (111). In the capillary tube and transition tube assembly provided by the present invention, the inner wall of the piping section matches the outer wall of the capillary tube; the solder penetrates into and fills the gap between the outer wall of the capillary tube and the inner wall of the piping section through the gap of the jaw portion, effectively ensuring Welding stability of capillary and piping sections.

Description

Capillary tube and transition tube assembly and air conditioner with same

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 technique

In the air conditioner, the capillary mainly plays a throttling role. At present, the capillary and the transition tube are connected by butt joints. The tube end of the transition tube is formed by cold punching or screwing. The formed tube mouth is circular, and its inner wall matches the outer wall of the capillary.

However, due to the action of gravity, the boss on the capillary contacts with the tube end of the transition tube to form a closed annular contact surface without a reserved gap. The normal spreading of the solder makes the solder stay at the nozzle or overflow of the transition tube, which seriously affects the welding quality and makes the welding stability not high.

Therefore, how to improve welding stability is an urgent problem to be solved by those skilled in the art.

Contents of the invention

In view of this, the invention discloses a capillary tube and transition tube assembly to improve welding stability. The present invention also provides an air conditioner with the above-mentioned capillary tube and transition tube assembly.

To achieve the above object, the present invention provides the following technical solutions:

A capillary tube and transition tube assembly, including a capillary tube and a transition tube, and the transition tube includes a transition tube body and a connecting portion arranged at the connecting end of the transition tube body and the capillary;

The connecting portion includes a pipe section matched with the outer wall of the capillary and a clamping portion arranged on the outer wall of the piping section, and the hollow gap of the clamping portion communicates with the interior of the piping section.

Preferably, in the above-mentioned capillary tube and transition tube assembly, the length of the clamping part is the same as the length of the piping section.

Preferably, in the above-mentioned capillary tube and transition tube assembly, the centerline of the clamping part of the clamping part is perpendicular to the centerline of the piping section.

Preferably, in the above-mentioned capillary and transition tube assembly, the number of the clamping parts is two and symmetrically arranged on the piping section.

Preferably, in the above-mentioned capillary and transition tube assembly, the capillary is provided with a positioning protrusion.

Preferably, in the above-mentioned capillary tube and transition tube assembly, the diameter of the positioning protrusion is larger than the inner diameter of the piping section and smaller than the outer diameter of the piping section.

Preferably, in the above-mentioned capillary tube and transition tube assembly, the piping section and the clamping part are an integral structure formed by stamping.

Preferably, in the above-mentioned capillary tube and transition tube assembly, the clamp part is a U-shaped clamp.

Preferably, in the above-mentioned capillary tube and transition tube assembly, the width of the hollow slit in the jaw part ranges from 0.05 mm to 0.15 mm.

The present invention also provides an air conditioner, including a capillary tube and a transition tube assembly, wherein the capillary tube and transition tube assembly is the capillary tube and transition tube assembly described in any one of the above.

It can be seen from the above-mentioned technical scheme that in the capillary and transition pipe assembly provided by the present invention, the outer diameter of the capillary is consistent with the inner diameter of the piping section, so that the inner wall of the piping section matches the outer wall of the capillary; The clamp gap of the clamp part penetrates into and fills up between the outer wall of the capillary and the inner wall of the pipe section, effectively ensuring the welding stability of the capillary and the pipe section.

The present invention also provides an air conditioner, including a capillary tube and a transition tube assembly, wherein the capillary tube and transition tube assembly is any one of the above capillary tube and transition tube assemblies. Since the above-mentioned capillary tube and transition tube assembly has the above-mentioned beneficial effects, the air conditioner having the above-mentioned capillary tube and transition tube assembly should also have the same technical effect, which will not be described in detail here.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural schematic diagram of the transition pipe that the embodiment of the present invention provides;

Fig. 2 is a schematic structural view of the capillary and transition tube assembly provided by the embodiment of the present invention.

in,

Transition pipe-1, connecting part-11, piping section-111, clamp part-112, transition pipe body-12, capillary tube-2, positioning protrusion-21.

Detailed ways

The invention discloses a capillary tube and transition tube assembly to improve welding stability. The present invention also provides an air conditioner with the above-mentioned capillary tube and transition tube assembly.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic structural diagram of a transition tube provided by an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a capillary tube and a transition tube assembly provided by an embodiment of the present invention.

As shown in Figures 1 and 2, the capillary and transition tube assembly provided by the embodiment of the present invention includes a capillary 2 and a transition tube 1, and the transition tube 1 includes a transition tube body 12 and a connection between the transition tube body 12 and the capillary 2. The connecting portion 11 at the end; the connecting portion 11 includes a pipe section 111 matched with the outer wall of the capillary 2 and a jaw portion 112 arranged on the outer wall of the pipe section 111, and the hollow gap of the jaw portion 112 communicates with the inside of the pipe section 111.

In the capillary tube and transition tube assembly provided by the embodiment of the present invention, the outer diameter of the capillary tube 2 is consistent with the inner diameter of the piping section 111, so that the inner wall of the piping section 111 matches the outer wall of the capillary tube 2; The clamp gap of 112 penetrates into and fills up between the outer wall of the capillary 2 and the inner wall of the piping section 111 , effectively ensuring the welding stability of the capillary 2 and the piping section 111 .

As shown in FIG. 2 , the length of the nip part 112 is the same as the length of the pipe section 111 . The solder spreads on the capillary 2 and the pipe section 111 through the hollow gap of the clamping portion 112, which further improves the stability of welding.

Furthermore, the center line of the clamp portion 112 is perpendicular to the center line of the pipe section 111 .

As shown in FIG. 1 , in this embodiment, there are two jaws 112 and they are arranged symmetrically on the pipe section 111 . It is also possible to set the number of jaws 112 to a plurality, and distribute them uniformly or at a certain angle along the circumference of the piping section 111. The specific number of jaws 112 and their distribution structure are not limited and are all protected. within 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 protrusion 21 is larger than the inner diameter of the piping section 111 and smaller than the outer diameter of the piping section 111 .

The piping section 111 and the jaw portion 112 are an integral structure formed by stamping. Preferably, one end of the transition pipe 1 is placed in a stamping die, and the connection part 11 is formed by stamping operation, that is, the piping section 111 and the clamping part 112 are integrated in one structure; and the transition pipe part that has not been stamped is the transition pipe The main body 12 , that is, the connecting portion 11 and the transition pipe main body 12 also have an integrated structure. Through the above arrangement, the overall strength of the transition pipe 1 is effectively ensured.

As shown in FIG. 1 , the jaw portion 112 is a U-shaped jaw. By stamping, part of the outer wall of the end of the transition pipe is extruded radially to form a clamping portion 112, and the end of the clamping portion 112 away from the piping section 111 has a circular arc transition structure, so that the clamping portion 112 forms a U Type clamp.

Further, in order to ensure that the solder penetrates in the gap, the width of the hollow gap of the clamp part 112 ranges from 0.05 mm to 0.15 mm. Preferably, the width of the hollow gap is about 0.1 mm.

An embodiment of the present invention also provides an air conditioner, including a capillary tube and transition tube assembly, wherein the capillary tube and transition tube assembly is any one of the capillary tube and transition tube assembly described above. Since the above-mentioned capillary tube and transition tube assembly has the above-mentioned beneficial effects, the air conditioner having the above-mentioned capillary tube and transition tube assembly should also have the same technical effect, which will not be described in detail here.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not 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, comprising capillary (2) and transition tube (1), it is characterized in that, described transition tube (1) comprises transition tube body (12) and is arranged on described transition tube body ( 12) a connecting portion (11) with the connecting end of the capillary (2); The connecting part (11) includes a pipe segment (111) matched with the outer wall of the capillary (2) and a clamping part (112) arranged on the outer wall of the piping segment (111), the clamping part The hollow gap of (112) communicates with the interior of the piping section (111); The outer diameter of the capillary (2) is consistent with the inner diameter of the piping section (111), so that the inner wall of the piping section (111) matches the outer wall of the capillary (2); The length of the clamp part (112) is the same as the length of the pipe section (111). 2. The capillary and transition tube assembly according to claim 1, characterized in that, the centerline of the clamping part (112) is perpendicular to the centerline of the piping section (111). 3 . The capillary and transition tube assembly according to claim 1 , characterized in that, the number of the clamping portions ( 112 ) is two and symmetrically arranged on the piping section ( 111 ). 4 . 4. The capillary and transition tube assembly according to claim 1, characterized in that, the capillary (2) is provided with a positioning protrusion (21). 5. The capillary and transition tube assembly according to claim 4, characterized in that, the diameter of the positioning protrusion (21) is larger than the inner diameter of the piping section (111) and smaller than the piping section (111) of the outer diameter. 6. The capillary tube and transition tube assembly according to any one of claims 1-5, characterized in that, the piping section (111) and the clamping part (112) are an integral structure formed by stamping. 7. The capillary and transition tube assembly according to claim 6, characterized in that, the clamp portion (112) is a U-shaped clamp. 8 . The capillary and transition tube assembly according to claim 7 , characterized in that, the width of the hollow gap of the jaw portion ( 112 ) ranges from 0.05 mm to 0.15 mm. 9. An air conditioner, comprising a capillary tube and transition tube assembly, characterized in that the capillary tube and transition tube assembly is the capillary tube and transition tube assembly according to any one of claims 1-8.