Alloy aluminum pipe structure for air conditioner

Abstract

The utility model relates to the technical field of air conditioner pipes, in particular to an alloy aluminum pipe structure for an air conditioner, which comprises a first alloy aluminum pipe, a second alloy aluminum pipe and a protective sleeve. The first alloy aluminum pipe is formed by welding a first copper pipe, a second copper pipe, a third copper pipe, a fourth copper pipe, a first aluminum pipe and a fifth copper pipe in sequence. The second alloy aluminum pipe is formed by welding a sixth copper pipe, a seventh copper pipe, an eighth copper pipe, a second aluminum pipe and a ninth copper pipe in sequence. The protective sleeves are respectively sleeved at the welded junctions of the aluminum pipe I, the copper pipe IV and the copper pipe VI; and the protective sleeves are respectively sleeved at the welded junctions of the aluminum pipe II, the copper pipe VIII and the copper pipe IX. Through structural improvement, the space pipe fitting has the advantages of being low in machining cost, high in welding quality, long in service life, more practical in performance and practical value and the like, and therefore the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning pipes, and more specifically, to a structure of an alloy aluminum pipe used for air-conditioning. Background Art

[0002] The raw materials of the indoor evaporator input and output pipes of split air conditioners on the market are all made of pure copper (see the attached manual). Figure 5 ), but due to the large fluctuations in the price of copper billets, the price of copper tubes has remained high. In order to improve the competitiveness of air-conditioning products in the market, it is urgent to use a relatively low-priced and reliable material to replace copper tubes.

[0003] At the same time, improvements are also made to the welding problems of copper-aluminum interfaces and the electrochemical corrosion problems of copper-aluminum welds during product use. Currently, the welding of copper-aluminum interfaces mainly adopts brazing, but due to differences in welding consistency among operators, the quality stability of mass production is poor.

[0004] In view of this, research and improvement are conducted on the existing problems, and a structure of an alloy aluminum tube for air conditioning is provided, aiming to reduce the cost of pipe fittings by replacing part of the copper tubes with aluminum tubes, and to ensure consistent quality of mass production by combining resistance welding and high-frequency welding. Interface sleeves with adhesive heat shrink tubing are used at the copper-aluminum welding points to solve the electrochemical corrosion problem, thereby achieving the purpose of solving the problem and improving practical value. Utility Model Content

[0005] The purpose of the utility model is to provide a structure of an alloy aluminum tube for an air conditioner to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides a structure of an alloy aluminum tube for air conditioning, which is achieved by the following specific technical means:

[0007] The invention discloses a structure of an alloy aluminum tube for an air conditioner, comprising: a first alloy aluminum tube, a copper tube 1, a copper tube 2, a copper tube 3, a copper tube 4, an aluminum tube 1, a copper tube 5, a second alloy aluminum tube, a copper tube 6, a copper tube 7, a copper tube 8, an aluminum tube 2, a copper tube 9, and a protective sleeve; the first alloy aluminum tube is formed by welding the copper tube 1, the copper tube 2, the copper tube 3, the copper tube 4, the aluminum tube 1 and the copper tube 5 in sequence; the second alloy aluminum tube is formed by welding the copper tube 6, the copper tube 7, the copper tube 8, the aluminum tube 2 and the copper tube 9 in sequence; the protective sleeves are respectively sleeved on the welding joints of the aluminum tube 1, the copper tube 4 and the copper tube 6; the protective sleeves are also respectively sleeved on the welding joints of the aluminum tube 2, the copper tube 8 and the copper tube 9.

[0008] As a further optimization of the technical solution, the utility model provides an alloy aluminum tube for air conditioning, in which the lower end of aluminum tube one is fixed to copper tube four by high-frequency welding, and the upper end of aluminum tube one is fixed to copper tube five by resistance welding.

[0009] As a further optimization of the technical solution, the utility model provides an alloy aluminum tube for air conditioning, in which the lower end of the aluminum tube 2 is fixed to the copper tube 8 by high-frequency welding, and the upper end of the aluminum tube 2 is fixed to the copper tube 9 by resistance welding.

[0010] As a further optimization of the technical solution, the protective sleeve of the structure of the alloy aluminum tube for air conditioning in the utility model is a heat shrinkable sleeve with glue.

[0011] As a further optimization of the technical solution, the utility model provides an alloy aluminum tube for air conditioning, wherein the aluminum tube 1 and the aluminum tube 2 are made of 3003 alloy aluminum.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] 1. The utility model discloses an alloy aluminum tube structure for air conditioners, which can reduce the processing cost of pipe fittings by replacing part of copper tubes with aluminum tubes.

[0014] 2. The utility model discloses an alloy aluminum tube structure for air conditioners. The resistance welding method and the high-frequency welding method are combined for welding. The equipment can ensure the consistency of mass production quality.

[0015] 3. The utility model provides an alloy aluminum tube structure for air conditioners, which increases the welding strength and service life of the weld joint by adding a protective cover to the weld joint after welding.

[0016] 4. The utility model improves the structure of the above-mentioned device, has the advantages of low processing cost of spatial pipe fittings, high welding quality, and long service life, making it more practical and valuable, thereby effectively solving the problems and shortcomings in the existing technology and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the protective cover of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the aluminum tube 1 of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the aluminum tube 2 of the utility model;

[0022] Figure 5 It is a schematic diagram of the existing pipe fitting structure of the utility model.

[0023] In the figure: first alloy aluminum tube 1, copper tube one 101, copper tube two 102, copper tube three 103, copper tube four 104, aluminum tube one 105, copper tube five 106, second alloy aluminum tube 2, copper tube six 201, copper tube seven 202, copper tube eight 203, aluminum tube two 204, copper tube nine 205, protective cover 3. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figures 1 to 5 The utility model provides a specific technical implementation scheme of the structure of an alloy aluminum tube for air conditioning:

[0026] A structure of an alloy aluminum tube for an air conditioner, comprising: a first alloy aluminum tube 1, a copper tube 101, a copper tube 2 102, a copper tube 3 103, a copper tube 4 104, an aluminum tube 105, a copper tube 5 106, a second alloy aluminum tube 2, a copper tube 6 201, a copper tube 7 202, a copper tube 8 203, an aluminum tube 2 204, a copper tube 9 205, and a protective sleeve 3; the first alloy aluminum tube 1 is composed of a copper tube 101 and a copper tube 2 102, a copper tube 3 103 , copper tube four 104, aluminum tube one 105 and copper tube five 106 are welded in sequence; the second alloy aluminum tube 2 is welded by copper tube six 201 and copper tube seven 202, copper tube eight 203, aluminum tube two 204 and copper tube nine 205 in sequence; the protective sleeves 3 are respectively sleeved on the welding joints of aluminum tube one 105 and copper tube four 104 and copper tube six 201; the protective sleeves 3 are also respectively sleeved on the welding joints of aluminum tube two 204 and copper tube eight 203 and copper tube nine 205.

[0027] Specifically, the lower end of the aluminum tube 105 is fixed to the copper tube 4 104 by high-frequency welding, and the upper end of the aluminum tube 105 is fixed to the copper tube 5 106 by resistance welding. The copper-aluminum interface is welded by resistance welding and high-frequency welding. For some special structures, high-frequency welding is used instead. The copper-aluminum welding wire, resistance welding machine, and high-frequency welding machine used are customized equipment to ensure quality and improve production efficiency.

[0028] Specifically, the lower end of the second aluminum tube 204 is fixed to the eighth copper tube 203 by high-frequency welding, and the upper end of the second aluminum tube 204 is fixed to the ninth copper tube 205 by resistance welding.

[0029] Specifically, the protective sleeve 3 is a heat shrink tubing with glue, and after the copper-aluminum interface is welded, the interface is covered with the protective sleeve 3 made of the heat shrink tubing with glue, and heated to above 150°C so that the protective sleeve shrinks and wraps the weld tightly to prevent the weld from contacting moisture and air.

[0030] Specifically, the first aluminum tube 105 and the second aluminum tube 204 are made of 3003 aluminum alloy, and the aluminum tube is made of 3003 aluminum alloy with a wall thickness of ≥1.0 mm to ensure that the material meets the pressure resistance and corrosion resistance requirements of the product.

[0031] Specific implementation steps:

[0032] In conjunction with the instruction manual Figure 1 As shown, when processing the input pipe fittings, the original copper material is replaced by aluminum tube 105 between copper tube 4 104 and copper tube 5 106, and resistance welding and high-frequency welding are selected for welding, and then a protective cover 3 is put on. In the same way, the output pipe uses aluminum tube 204 to replace the original copper material between copper tube 8 203 and copper tube 9 205, and resistance welding and high-frequency welding are selected for welding, and then a protective cover 3 is put on.

[0033] In summary: the structure of the alloy aluminum tube for air conditioning can reduce the processing cost of pipe fittings by replacing part of the copper tubes with aluminum tubes; by adopting resistance welding and high-frequency welding methods, combined welding can be carried out, and the consistency of mass production quality can be guaranteed through equipment; by adding a protective cover to the weld position after welding, the welding strength and service life of the weld position are improved, thereby solving the problems existing in the prior art.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A structure of an alloy aluminum tube for air conditioning, comprising: A first alloy aluminum tube (1), a copper tube one (101), a copper tube two (102), a copper tube three (103), a copper tube four (104), an aluminum tube one (105), a copper tube five (106), a second alloy aluminum tube (2), a copper tube six (201), a copper tube seven (202), a copper tube eight (203), an aluminum tube two (204), a copper tube nine (205), and a protective sleeve (3); characterized in that: the first alloy aluminum tube (1) is composed of a copper tube one (101) and a copper tube two (102), a copper tube three (103), a copper tube four (104), an aluminum tube one (105), a copper tube five (106), a second alloy aluminum tube (2), a copper tube six (201), a copper tube seven (202), a copper tube eight (203), an aluminum tube two (204), a copper tube nine (205), and a protective sleeve (3); 4), aluminum tube one (105) and copper tube five (106) are welded in sequence; the second alloy aluminum tube (2) is welded in sequence by copper tube six (201) and copper tube seven (202), copper tube eight (203), aluminum tube two (204) and copper tube nine (205); the protective sleeve (3) is respectively sleeved on the welding joints of aluminum tube one (105) and copper tube four (104) and copper tube six (201); the protective sleeve (3) is also respectively sleeved on the welding joints of aluminum tube two (204) and copper tube eight (203) and copper tube nine (205).

2. The structure of an alloy aluminum tube for air conditioning according to claim 1, characterized in that: The lower end of the aluminum tube 1 (105) is fixed to the copper tube 4 (104) by high-frequency welding, and the upper end of the aluminum tube 1 (105) is fixed to the copper tube 5 (106) by resistance welding.

3. The structure of an alloy aluminum tube for air conditioning according to claim 1, characterized in that: The lower end of the aluminum tube 2 (204) is fixed to the copper tube 8 (203) by high-frequency welding, and the upper end of the aluminum tube 2 (204) is fixed to the copper tube 9 (205) by resistance welding.

4. The structure of an alloy aluminum tube for air conditioning according to claim 1, characterized in that: The protective sleeve (3) is a heat shrinkable sleeve with adhesive.

5. The structure of an alloy aluminum tube for air conditioning according to claim 1, characterized in that: The aluminum tube 1 (105) and the aluminum tube 2 (204) are made of 3003 alloy aluminum.

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