CN211823279U - Liquid pipe connecting structure of air conditioner condenser, condenser and air conditioner - Google Patents

Abstract

The utility model provides an air conditioner condenser liquid pipe connection structure, condenser and air conditioner, this air conditioner condenser liquid pipe connection structure include liquid pipe and U type pipe, U type pipe mouth of pipe department is provided with the horn mouth, the liquid pipe includes liquid pipe main part and sets up the terminal extension of liquid pipe main part, the external diameter of extension is less than the external diameter of liquid pipe main part just equals the internal diameter of U type pipe, the extension stretch into to the inside of U type pipe, the end of liquid pipe main part with horn mouth fixed connection. The connecting structure increases the contact surface of the liquid pipe and the U-shaped pipe by additionally arranging the extension part, reduces the stress of unit area and further improves the stability of the connecting structure. The utility model provides a condenser and air conditioner have included above-mentioned air conditioner condenser liquid pipe connection structure, consequently also have above-mentioned beneficial effect.

Description

Liquid pipe connecting structure of air conditioner condenser, condenser and air conditioner

Technical Field

The utility model relates to an air conditioner condenser technical field especially relates to an air conditioner condenser liquid pipe connection structure, condenser and air conditioner.

Background

The air conditioner condenser is an important heat exchange component of an air conditioner, the condenser is generally of a U-shaped tubular heat exchanger, and meanwhile, a liquid pipe is connected with the U-shaped pipe to achieve liquid circulation. The connection mode of the liquid pipe and the U-shaped pipe is that the pipe orifice at the tail end of the liquid pipe is inserted into the pipe orifice of the U-shaped pipe, and the U-shaped pipe and the liquid pipe are welded to realize fixed connection between the U-shaped pipe and the liquid pipe. However, the welding point between the U-shaped pipe orifice and the liquid pipe is only along the circle of the circumferential direction of the outer wall at the tail end of the liquid pipe, the U-shaped pipe and the liquid pipe are both slender, and the welding stress of the welding point at the position is very easily influenced by the vibration and the temperature change in the transportation and actual use processes of the air conditioner and the condenser, so that the welding point is caused to lose efficacy.

In order to solve the problem that the welding part of a liquid pipe and a U-shaped pipe of an air conditioner condenser is easy to lose efficacy, a reinforced pipe is welded between the liquid pipe and other pipelines arranged in parallel in the prior art, and the reinforced pipe is perpendicular to the liquid pipe and the other pipeline. Connect liquid pipe and another tube coupling as an organic whole through the reinforced pipe, improve the stability of liquid pipe and U type pipe weld. However, this technique introduces two welding points for reinforcing the tube and the liquid tube and the other tube, and the increase of the welding points increases the possibility of failure of the welding points and causes the liquid tube and the other tube to break at the welding points.

SUMMERY OF THE UTILITY MODEL

To the problem among the above-mentioned prior art, this application has proposed a condenser liquid pipe connection structure of air conditioner, condenser and air conditioner, replaces current reinforced pipe structure through improving the connection structure between liquid pipe and the U type pipe, utilizes the increase lifting surface area to reduce unit area's atress size, and then has just reduced the atress of solder joint, has improved the stability of solder joint, has also avoided the defect that prior art adopted the reinforced pipe to bring simultaneously.

The utility model discloses an air conditioner condenser liquid pipe connection structure, including liquid pipe and U type pipe, U type pipe mouth of pipe department is provided with the horn mouth, the liquid pipe includes liquid pipe main part and sets up the terminal extension of liquid pipe main part, the external diameter of extension is less than the external diameter of liquid pipe main part just equals the internal diameter of U type pipe, the extension stretches into to the inside of U type pipe, the end of liquid pipe main part with horn mouth fixed connection.

In one embodiment, the nominal diameter of the U-shaped pipe is less than or equal to 9.5mm, and the sum of the depths of the liquid pipe extending into the bell mouth and the U-shaped pipe is 20-25 mm.

In one embodiment, the fixed connection between the tail end of the liquid pipe main body and the bell mouth is welded, the opening of the bell mouth is a conical opening with the inner diameter gradually increasing from inside to outside, and a welding groove is formed in the space between the conical opening and the tail end outer wall of the liquid pipe main body. Through this embodiment, the welding groove is convenient for welding operation, also provides stable bearing space for welded structure simultaneously, is favorable to improving welded structure's stability.

In one embodiment, the extension part and the liquid pipe main body are connected into a whole in a welding mode.

In one embodiment, an adhesive is provided between the outer wall of the extension and the inner wall of the U-tube. In this embodiment, the extension portion and the U-shaped pipe are connected by the adhesive, and the liquid pipe main body and the bell mouth are fixedly connected, and the reinforcing liquid pipe and the U-shaped pipe are connected by the adhesive.

The utility model discloses a condenser, including foretell air conditioner condenser liquid pipe connection structure.

In one embodiment, the heat exchanger further comprises a box body, a heat exchange coil is arranged in the box body, the heat exchange coil is formed by connecting a plurality of U-shaped pipes through U-shaped joints, and one end of one U-shaped pipe in the heat exchange coil is connected with the liquid pipe.

In one embodiment, two ends of the U-shaped tube in the heat exchange coil pass through the wall of the tank body to the outside of the tank body, and the U-shaped joint is connected to the ends of the U-shaped tube. Through this embodiment, with all connection structure in the heat transfer coil, U type connects promptly, exposes in the box outside, not only is favorable to the connection operation of U type joint when heat transfer coil assembles, also is convenient for simultaneously to the maintenance of U type joint department.

The utility model discloses an air conditioner, including foretell condenser.

The above-mentioned technical characteristics can be combined in various suitable ways or replaced by equivalent technical characteristics as long as the purpose of the invention can be achieved.

The utility model provides a pair of air conditioner condenser liquid pipe connection structure, condenser and air conditioner compares with prior art, possesses following beneficial effect at least:

the utility model discloses make the improvement to current liquid pipe structure, increase the extension that one section diameter reduces at the end of liquid pipe main part, when liquid pipe and U type union coupling, the extension can stretch into to U type intraduct and its outer wall and U type intraductal wall in close contact with, thereby connection structure's stress surface between liquid pipe and the U type pipe has been enlarged, condenser transportation and use are by vibrations, the power that factors such as temperature variation brought can be because of the stress surface of expansion further dispersion, and then reduced the atress on the unit area, thereby liquid pipe and U type union coupling structure's stability has been improved.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings. Wherein:

fig. 1 shows a schematic structural view of a condenser of the present invention;

fig. 2 is a partial enlarged view of the liquid pipe connection structure of the condenser of the present invention shown in fig. 1, I;

in the drawings, like parts are provided with like reference numerals. The drawings are not to scale.

Reference numerals:

the method comprises the following steps of 1-liquid pipe, 11-liquid pipe main body, 12-extension part, 2-heat exchange coil pipe, 21-U-shaped pipe, 22-U-shaped joint, 3-bell mouth, 4-welding groove and 5-box body.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in the accompanying drawing fig. 1, the utility model provides an air conditioner condenser liquid pipe connection structure, including liquid pipe 1 and U type pipe 21, U type pipe 21 mouth of pipe department is provided with horn mouth 3, and liquid pipe 1 includes liquid pipe main part 11 and sets up extension 12 at liquid pipe main part 11 end, and the external diameter of extension 12 is less than the external diameter of liquid pipe main part 11 and equals the internal diameter of U type pipe 21, and extension 12 stretches into the inside to U type pipe 21, the end and the horn mouth 3 fixed connection of liquid pipe main part 11.

Specifically, when the liquid pipe 1 is connected to the U-shaped pipe 21, the liquid pipe 1 is inserted into the bell mouth 3 and the U-shaped pipe 21, and since the outer diameter of the extension portion 12 is smaller than the outer diameter of the liquid pipe main body 11 and equal to the inner diameter of the U-shaped pipe 21, the end of the liquid pipe main body 11 can only be inserted into the bottom of the bell mouth 3 while the extension portion 12 is inserted into the U-shaped pipe 21, and the outer wall of the extension portion 12 is closely attached to the inner wall of the U-shaped pipe 21. After the end of the liquid pipe main body 11 is fixedly connected with the bell mouth 3, the connecting structure of the air conditioner condenser liquid pipe 1 is formed.

The extension part 12 is additionally arranged at the tail end of the liquid pipe main body 11, the outer wall of the extension part 12 is tightly attached to the inner wall of the U-shaped pipe 21, and then the contact surface of the liquid pipe 1 and the U-shaped pipe 21 is increased, so that the acting force is dispersed, the stress on a unit area is reduced, and the structural stability of the fixed connection part between the tail end of the liquid pipe main body 11 and the bell mouth 3 is improved.

The outer diameter of the distal end of the liquid pipe body 11 is the same as the inner diameter of the bell 3, and the outer wall of the distal end of the liquid pipe body 11 is in close contact with the inner wall of the bell 3.

In one embodiment, the nominal diameter of the U-shaped pipe 21 is less than or equal to 9.5mm, and the sum of the depth of the liquid pipe 1 extending into the bell mouth 3 and the depth of the U-shaped pipe 21 is 20-25 mm.

Specifically, the reason why the size of the U-shaped pipe 21 and the connecting structure between the liquid pipe 1 and the U-shaped pipe 21 are limited is that if the nominal diameter of the U-shaped pipe 21 is too large, the size and mass of the liquid pipe 1 are increased, and the force generated by the vibration increases; the amount of heat exchange medium inside the condenser is also increased, and the stress caused by temperature change is increased. Accordingly, the stress on the connection structure between the liquid pipe 1 and the U-shaped pipe 21 is increased, the contact surface required for dispersing the stress is also increased, and the length of the extension portion 12 is further increased, which increases the manufacturing cost. And the stress is increased, and the possibility of instability of the whole connecting structure is improved. Therefore, the present embodiment has the above-mentioned limitations on the dimensions of the U-shaped tube 21 and the connection structure between the liquid tube 1 and the U-shaped tube 21, taking the above factors into consideration.

In one embodiment, the fixed connection between the end of the liquid tube main body 11 and the bell mouth 3 is welded, the opening of the bell mouth 3 is a tapered opening with an inner diameter gradually increasing from inside to outside, and a space between the tapered opening and the outer wall of the end of the liquid tube main body 11 forms the welding groove 4.

Specifically, during welding, a circle of welding is performed along the circumferential direction in the welding groove 4, so that the bell mouth 3 and the liquid pipe main body 11 can be connected.

In one embodiment, the extension portion 12 and the liquid pipe body 11 are integrally connected by welding.

In particular, the extension 12 is additionally welded to the tube body 11 to form the tube 1, so that the extension 12 is only additionally manufactured to produce the improved tube 1 from the existing tube tubing.

In one embodiment, there is an adhesive between the outer wall of the extension 12 and the inner wall of the U-tube 21.

Specifically, the adhesive can enhance the connection between the extension portion 12 and the U-shaped tube 21, and also seal the outer wall of the extension portion 12 and the inner wall of the U-shaped tube 21, thereby further improving the stability and sealing performance of the connection between the liquid tube 1 and the U-shaped tube 21.

The attached drawings fig. 2 show that the utility model provides an air conditioner condenser liquid pipe connection structure, it includes foretell air conditioner condenser liquid pipe connection structure. The condenser has all the technical effects of the liquid pipe connecting structure of the air conditioner condenser.

In one embodiment, the liquid pipe heat exchanger further comprises a box body 5, wherein a heat exchange coil 2 is arranged in the box body 5, the heat exchange coil 2 is formed by connecting a plurality of U-shaped pipes 21 through U-shaped joints 22, and one end of one U-shaped pipe 21 in the heat exchange coil 2 is connected with the liquid pipe 1.

In one embodiment, both ends of the U-shaped tube 21 in the heat exchange coil 2 pass through the wall of the box 5 to the outside of the box 5, and the U-shaped joint 22 is connected to the ends of the U-shaped tube 21.

Specifically, two ends of the U-shaped pipe 21 in the heat exchange coil 2 extend out of the box 5 from the same side and are connected through the U-shaped joint 22, so that the used connecting structure in the heat exchange coil 2 is located outside the box 5, and assembly operation and maintenance are facilitated.

The utility model provides an air conditioner, it includes foretell condenser. The air conditioner has all the technical effects of the liquid pipe connecting structure of the air conditioner condenser and the condenser.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.

Claims (9)

1. The utility model provides an air conditioner condenser liquid pipe connection structure, includes liquid pipe and U type pipe, its characterized in that, U type pipe mouth department is provided with the horn mouth, the liquid pipe includes liquid pipe main part and sets up the terminal extension of liquid pipe main part, the external diameter of extension is less than the external diameter of liquid pipe main part just equals the internal diameter of U type pipe, the extension stretches into to the inside of U type pipe, the end of liquid pipe main part with horn mouth fixed connection.

2. An air conditioner condenser liquid pipe connecting structure as claimed in claim 1, wherein the nominal diameter of the U-shaped pipe is less than or equal to 9.5mm, and the sum of the depth of the liquid pipe extending into the bell mouth and the U-shaped pipe is 20-25 mm.

3. The liquid pipe connecting structure of an air conditioner condenser as claimed in claim 1 or 2, wherein the fixed connection between the end of the liquid pipe body and the bell mouth is welded, the opening of the bell mouth is a tapered opening with an inner diameter gradually increasing from inside to outside, and a welding groove is formed in a space between the tapered opening and the outer wall of the end of the liquid pipe body.

4. A liquid pipe connection structure for a condenser of an air conditioner as claimed in claim 1, wherein the extension part is integrally connected to the liquid pipe main body by welding.

5. A liquid pipe connection structure for a condenser of an air conditioner as claimed in claim 1, wherein an adhesive is provided between an outer wall of the extension part and an inner wall of the U-shaped pipe.

6. A condenser, characterized in that it comprises the air conditioner condenser liquid pipe connection structure of any one of claims 1 to 5.

7. The condenser of claim 6, further comprising a box body, wherein a heat exchange coil is arranged in the box body, the heat exchange coil is formed by connecting a plurality of U-shaped pipes through U-shaped joints, and one end of one U-shaped pipe in the heat exchange coil is connected with the liquid pipe.

8. The condenser of claim 7, wherein both ends of the U-tubes in the heat exchange coil pass through a wall of the tank to an exterior of the tank, the U-joints being connected to the ends of the U-tubes.

9. An air conditioner characterized by comprising the condenser according to any one of claims 6 to 8.

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