Novel connecting piping for indoor unit and outdoor unit of air conditioner

Abstract

The utility model discloses a novel air conditioner indoor and outdoor unit connecting pipe, which comprises a basic pipe, a pipe connecting nut, a transition connecting pipe section and a pipe plug, the basic pipe is welded on the transition connecting pipe section, the pipe connecting nut is connected with the transition connecting pipe section, and the pipe plug is connected with the end part of the transition connecting pipe section. The installation stability and reliability of the connecting piping can be improved, the overall structure can be simplified, the manufacturing cost is reduced, the pipe plug is used for preventing dust and moisture, and the service life of the connecting piping is prolonged.

Description

Technical Field

[0001] The utility model relates to a novel connecting pipe for indoor and outdoor units of an air conditioner. Background Art

[0002] With the development of the economy, air conditioners have multiple functions such as cooling, dehumidification, heating and air purification. Conventional air conditioners generally consist of an indoor unit and an outdoor unit, with two refrigerant pipes connecting the indoor and outdoor units to form a refrigerant circulation loop. These two refrigerant pipes are generally copper pipes.

[0003] However, no matter whether the connecting pipe is a copper pipe or a copper-aluminum combination pipe, the method of connecting it to the indoor and outdoor units is to put the two ends of the pipe into nuts, then expand the ends into a trumpet-shaped bell mouth, and rotate it with the external thread on the indoor and outdoor unit stop valve connecting pipe through the nut. The nut presses the bell mouth onto the port of the stop valve connecting pipe to form a sealed connection.

[0004] The above connection method has high technical requirements, and the contact area of ​​the connection part is small, which easily causes radial relative displacement of the two ports, thereby causing misaligned connection. The stability and reliability of the connection are poor, and leakage is easy to occur. Utility Model Content

[0005] The purpose of this utility model is to provide a new technical solution for connecting the indoor and outdoor units of air conditioners to address the shortcomings of the existing technology. It can not only improve the stability and reliability of the installation of the connecting pipes, but also simplify the overall structure and reduce manufacturing costs. The pipe plugging is used to prevent dust and moisture, thereby extending the service life of the connecting pipes.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A new type of connecting piping for indoor and outdoor units of an air conditioner is characterized in that it includes a base pipe, a pipe connecting nut, a transition connecting pipe section and a pipe plug. The base pipe is welded to the transition connecting pipe section, the pipe connecting nut is connected to the transition connecting pipe section, and the pipe plug is connected to the end of the transition connecting pipe section. Through the design of the above structure, not only can the stability and reliability of the connecting piping installation be improved, but also the overall structure can be simplified and the manufacturing cost can be reduced. The pipe plug is used to prevent dust and moisture, thereby extending the service life of the connecting piping.

[0008] Furthermore, the base pipe adopts a single-head or multi-head spiral corrugated pipe or annular corrugated pipe, which is easy to bend and meets the needs of connecting pipes in different occasions.

[0009] Furthermore, the corrugated tube has a wave crest height of 0.5 to 10 mm, a wave pitch of 2 to 20 mm, and a wall thickness of 0.15 to 1.5 mm.

[0010] Furthermore, the corrugated shape of the bellows is one of a U-shape, an S-shape or an Ω-shape.

[0011] Furthermore, the basic pipe includes a liquid pipe and a gas pipe, and an insulation pipe is provided on the outside of the liquid pipe and the gas pipe. The liquid pipe and the gas pipe are used to transport liquid and gas respectively. The insulation pipe can reduce heat loss of liquid or gas during the transportation process.

[0012] Furthermore, the diameter of the liquid pipe is 5 to 19 mm, and the diameter of the gas pipe is 9 to 30 mm.

[0013] Furthermore, the base pipe is made of stainless steel, the transition connecting pipe section is made of copper, the total length of the transition connecting pipe section is 20 to 500 mm, the wall thickness of the transition connecting pipe section is 0.5 to 2.5 mm, and the length of the base pipe is 1000 to 20000 mm, thereby reducing manufacturing costs.

[0014] Furthermore, one end of the transition connecting pipe section is connected to the indoor and outdoor connection ends of the air conditioner, and the pipe end of the transition connecting pipe section is in a 90° flare shape, which matches the flare angle a of the pipe union nut, and a is 90°.

[0015] Furthermore, the connecting pipe is in a coiled or spiral shape, which is flexible and convenient to use.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The utility model can not only improve the stability and reliability of the installation of the connecting pipes, but also simplify the overall structure and reduce the manufacturing cost. The pipe plugging is used to prevent dust and moisture, and prolong the service life of the connecting pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a structural diagram of the pipe connection between the indoor and outdoor units of a new type of air conditioner in this utility model;

[0020] Figure 2 It is a structural schematic diagram of the pipe connecting nut in the utility model.

[0021] In the figure: 1-base pipe; 2-insulation pipe; 3-pipe joint nut; 4-pipe plug; 5-transition connection pipe section. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," and so on in the specification and claims of this utility model and the aforementioned drawings are used to distinguish similar items and are not necessarily used to describe a specific order or precedence. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0025] like Figures 1 to 2 As shown, this utility model is a new type of connecting piping for indoor and outdoor units of air conditioners, including a base pipe 1, a pipe nut 3, a transition connecting pipe section 5 and a pipe plug 4. The base pipe 1 is welded to the transition connecting pipe section 5. The base pipe 1 adopts a single-head or multi-head spiral corrugated pipe or annular corrugated pipe, which is easy to bend and meets the use of connecting piping in different occasions.

[0026] The peak height of the corrugated pipe is 0.5 to 10 mm, the wave distance is 2 to 20 mm, and the wall thickness is 0.15 to 1.5 mm.

[0027] The corrugated shape of the bellows is one of U-shape, S-shape or Ω-shape.

[0028] The basic pipe 1 includes a liquid pipe and a gas pipe, and an insulation pipe 2 is provided on the outside of the liquid pipe and the gas pipe. The liquid pipe and the gas pipe are used to transport liquid and gas respectively. The insulation pipe 2 can reduce heat loss of the liquid or gas during the transportation process.

[0029] The diameter of the liquid pipe is 5 to 19 mm, and the diameter of the gas pipe is 9 to 30 mm.

[0030] The base pipe 1 is made of stainless steel, the transition connecting pipe section 5 is made of copper, the total length of the transition connecting pipe section 5 is 20 to 500 mm, the wall thickness of the transition connecting pipe section 5 is 0.5 to 2.5 mm, and the length of the base pipe 1 is 1000 to 20000 mm, thereby reducing manufacturing costs.

[0031] One end of the transition connecting pipe section 5 is connected to the indoor and outdoor connection ends of the air conditioner. The pipe end of the transition connecting pipe section 5 is in a 90° flare shape, which matches the flare angle a of the pipe union nut 3, and a is 90°.

[0032] The pipe plug 4 is connected to the end of the transition connecting pipe section 5. The pipe plug 4 is used to prevent dust and moisture. Through the design of the above structure, not only the stability and reliability of the installation of the connecting pipe can be improved, but also the overall structure can be simplified, the manufacturing cost can be reduced, and the service life of the connecting pipe can be extended.

[0033] The connecting pipes are in a coiled or spiral shape, which is flexible and convenient to use.

[0034] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications based on the present invention to achieve substantially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A new type of connecting pipe for indoor and outdoor air conditioners, characterized by: It includes a base pipe, a pipe connecting nut, a transition connecting pipe section and a pipe plug, the base pipe is welded to the transition connecting pipe section, the pipe connecting nut is connected to the transition connecting pipe section, and the pipe plug is connected to the end of the transition connecting pipe section; the base pipe adopts a single-head or multi-head spiral corrugated pipe or annular corrugated pipe; the base pipe is made of stainless steel, the transition connecting pipe section is made of copper, the total length of the transition connecting pipe section is 20 to 500 mm, the wall thickness of the transition connecting pipe section is 0.5 to 2.5 mm, and the length of the base pipe is 1000 to 20000 mm; one end of the transition connecting pipe section is connected to the indoor and outdoor connection ends of the air conditioner, the pipe end of the transition connecting pipe section is in a 90° flare shape, which matches the flare angle a of the pipe connecting nut; the connecting piping is in a roll or spiral shape.

2. A new type of connecting pipe for indoor and outdoor air conditioners according to claim 1, characterized in that: The corrugated tube has a wave crest height of 0.5 to 10 mm, a wave pitch of 2 to 20 mm, and a wall thickness of 0.15 to 1.5 mm.

3. The novel connecting pipe for indoor and outdoor units of an air conditioner according to claim 1 is characterized in that: The corrugated shape of the bellows is one of U-shape, S-shape or Ω-shape.

4. The novel connecting pipe for indoor and outdoor air conditioner according to claim 1 is characterized in that: The basic pipe includes a liquid pipe and an air pipe, and insulation pipes are provided on the outsides of the liquid pipe and the air pipe.

5. The novel connecting pipe for indoor and outdoor units of an air conditioner according to claim 4 is characterized in that: The diameter of the liquid pipe is 5 to 19 mm, and the diameter of the air pipe is 9 to 30 mm.

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