CN202204212U - Heat exchanger of air conditioner with copper-aluminum joint - Google Patents

Heat exchanger of air conditioner with copper-aluminum joint Download PDF

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Publication number
CN202204212U
CN202204212U CN2011202669341U CN201120266934U CN202204212U CN 202204212 U CN202204212 U CN 202204212U CN 2011202669341 U CN2011202669341 U CN 2011202669341U CN 201120266934 U CN201120266934 U CN 201120266934U CN 202204212 U CN202204212 U CN 202204212U
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CN
China
Prior art keywords
pipe
copper
aluminum
heat exchanger
aluminium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011202669341U
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Chinese (zh)
Inventor
程志明
郭芳程
黄小军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Original Assignee
Guangdong Midea Electric Appliances Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Midea Electric Appliances Co Ltd filed Critical Guangdong Midea Electric Appliances Co Ltd
Priority to CN2011202669341U priority Critical patent/CN202204212U/en
Application granted granted Critical
Publication of CN202204212U publication Critical patent/CN202204212U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A heat exchanger of an air conditioner with a copper-aluminum joint comprises U-shaped pipes which are in expansion joint with fins. The U-shaped pipes are integrated through pipeline members. An input end and an output end of each U-shaped pipe are connected with a copper-aluminum adapter. One end of a copper pipe is connected with a refrigeration system. One end of an aluminum pipe is connected with a heat exchanger. A thermal shrinkable pipe coats a jointing part between the copper pipe and the aluminum pipe. A reducing opening of the copper pipe is inserted into the aluminum pipe, or the aluminum pipe is inserted into an enlarging opening of the copper pipe, or the copper pipe is inserted into an enlarging opening of the aluminum pipe. The copper pipe and the aluminum pipe are integrated through flame welding, electric resistance welding, induction welding or friction welding. The thermal shrinkable pipe is longer than the joint part between the copper pipe and the aluminum pipe. Hot melt adhesive is also provided between the thermal shrinkable pipe and the copper-aluminum adapter. The thermal shrinkable pipe is made of polyolefin material. The aluminum pipe of the copper-aluminum adapter according to the heat exchanger does not directly contact with other metal and does not be exposed in the air. The heat exchanger of the air conditioner with the copper-aluminum joint has the following advantages: effective prevention for electrochemical corrosion between aluminum and other kinds of metal, greatly improved corrosion resistance of a full aluminum heat exchanger, higher reliability and longer service life.

Description

The idle call heat exchanger of band copper-aluminium joint
Technical field
The utility model relates to a kind of air-condition heat exchanger, specifically is a kind of idle call heat exchanger with copper-aluminium joint.
Background technology
Along with the copper resource is in short supply day by day, the aluminum pipe finned heat exchanger begins to be applied in the air-conditioning to substitute the copper pipe finned heat exchanger.
Existing aluminum pipe finned heat exchanger is general all to be welded direct to the copper pipeline fitting in the input, delivery outlet of aluminum heat exchanger; Perhaps, be connected to parts such as compressor, high pressure valve assembly again through the copper pipeline fitting from the input of aluminum heat exchanger, one section aluminum pipe of delivery outlet welding.Between the copper-aluminium joint or do not take any safeguard measure; Only take the protection of spraying paint simply, practice shows that this type connected mode can not effectively be avoided the corrosion between the copper-aluminium joint; Along with go over service time, copper-aluminium joint often causes the leakage of cold-producing medium because of corrosion failure.Have potential difference between copper and the aluminium, in case contact with water, copper-aluminium joint exists because potential difference causes producing electrochemical corrosion.Therefore, must adopt strong safeguard measure to copper-aluminium joint.
The utility model content
The purpose of the utility model aims to provide that a kind of simplicity of design is reasonable, cost of manufacture is low, corrosion resistance is strong, the idle call heat exchanger of the band copper-aluminium joint of long service life, to overcome weak point of the prior art.
A kind of idle call heat exchanger by this purpose design with copper-aluminium joint; Comprise the U-shaped pipe of expanded joint on fin; Fuse through pipeline fitting between the U type pipe, its architectural feature is that input, the output of U type pipe is connected with the adapter of copper aluminium, and its copper pipe one end is connected with refrigeration system; Aluminum pipe one end is connected with heat exchanger, and the junction of copper pipe and aluminum pipe is coated with heat-shrink tube.
Said copper pipe reducing is inserted in the aluminum pipe, and perhaps copper pipe enlarging, aluminum pipe insert in it, and perhaps aluminum pipe enlarging, copper pipe insert in it.
Between said copper pipe and the aluminum pipe through gas brazing, or electric resistance welding, or induction welding, or friction welding (FW) links into an integrated entity.
Said heat-shrink tube is than the be connected director of copper pipe with aluminum pipe.Heat-shrink tube and copper aluminium also are provided with PUR between taking over.Heat-shrink tube is made by polyolefine material.
Said heat exchanger is provided with side plate.Fin, U type pipe, pipeline fitting, side plate are made by aluminium.
The joint that the copper aluminium of the utility model is taken over is surrounded by one deck heat-shrink tube outward, is close to copper aluminium after the heat-shrink tube pyrocondensation and takes over the surface, can prevent that moisture, air from getting into.Aluminum pipe no longer directly contacts with other metal and is exposed in the air, has effectively prevented the electrochemical corrosion of aluminium and other metal, has improved the corrosion resistance of full aluminium heater greatly, and reliability is stronger, longer service life.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment.
Fig. 2-1 is the structural representation that a bronze medal aluminium is taken over.
Fig. 2-2 is the structural representation that another copper aluminium is taken over.
Fig. 2-3 is that a bronze medal aluminium is taken over the structural representation that coats heat-shrink tube.
Fig. 2-4 is that another copper aluminium is taken over the structural representation that coats heat-shrink tube.
Fig. 3 is the structural representation of second embodiment.
Fig. 4 is the structural representation of the 3rd embodiment.
Fig. 5 is the structural representation of the 4th embodiment.
Among the figure: 1 is fin, and 2 is the U-shaped pipe, and 3 are the adapter of copper aluminium, and 4 is side plate, and 21 is aluminum pipe, and 22 is copper pipe, and 23 is heat-shrink tube.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
First embodiment
Referring to Fig. 1, a kind of idle call heat exchanger with copper-aluminium joint is the off-premises station heat exchanger; Comprise the U-shaped pipe 2 of expanded joint on fin 1, fuse through pipeline fitting between the U type pipe 2 that input, the output of its U type pipe 2 is connected with copper aluminium and takes over 3; Its copper pipe 21 1 ends are connected with refrigeration system; Aluminum pipe 22 1 ends are connected with heat exchanger, and copper pipe 21 is coated with heat-shrink tube 23 with the junction of aluminum pipe 22, and it is folding type that copper aluminium takes over 3.
Referring to Fig. 2-1, copper aluminium is taken over 3 copper pipe 21 enlargings, and aluminum pipe 22 inserts in it; Referring to aluminum pipe 22 enlargings of Fig. 2-2 bronze medal aluminium adapter 3, copper pipe 21 inserts in it, referring to Fig. 2-3; Copper aluminium is taken over 21 reducings of 3 copper pipes, inserts in the aluminum pipe 22, referring to Fig. 2-4; Copper aluminium is taken over 22 reducings of 3 aluminum pipes, inserts in the copper pipe 21, and four technique effects that scheme reached are consistent.Between copper pipe 21 and the aluminum pipe 22 through gas brazing, or electric resistance welding, or induction welding, or friction welding (FW) links into an integrated entity.Heat-shrink tube 23 is than the be connected director of copper pipe 21 with aluminum pipe 22, shown in Fig. 2-5.Perhaps copper pipe 21 is coated with the heat-shrink tube 24 of not being with PUR with the junction of aluminum pipe 22, and heat-shrink tube 24 two ends coat the heat-shrink tube 23 of band PUR again, shown in Fig. 2-6.Heat-shrink tube 23 will shrink after being heated to uniform temperature, be close to copper aluminium and take over 3 surfaces, can prevent that moisture, air from getting into.Heat-shrink tube 23 is made by polyolefine material.Also be provided with side plate 4 on the heat exchanger of this instance.Above-mentioned fin 1, U type pipe 2, pipeline fitting, side plate 4 form by aluminum.
Second embodiment
Referring to Fig. 3, a kind of idle call heat exchanger with copper-aluminium joint is that with the first embodiment main distinction aft section of U type pipe 2 forms bending.Other do not state part, with first embodiment, no longer repeat.
The 3rd embodiment
Referring to Fig. 4, a kind of idle call heat exchanger with copper-aluminium joint is that with the first embodiment main distinction it is an indoor machine evaporation, and U-shaped pipe 2 one ends are fixedly connected with side plate 4, and an other end adopts plastic support board to fix, and it is straight pipe type that copper aluminium takes over 3.Other do not state part, with first embodiment, no longer repeat.
The 4th embodiment
Referring to Fig. 5, a kind of idle call heat exchanger with copper-aluminium joint is that with the first embodiment main distinction heat exchanger is not provided with side plate, and copper aluminium is taken over the bending of 3 parts.Other do not state part, with first embodiment, no longer repeat.
The utility model has been set forth a plurality of embodiment, under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and distortion to these embodiment, all falls into the protection domain of the utility model.

Claims (8)

1. idle call heat exchanger with copper-aluminium joint; Comprise the U-shaped pipe (2) of expanded joint on fin (1); Fuse through pipeline fitting between the U type pipe (2), it is characterized in that input, the output of U type pipe (2) is connected with copper aluminium adapter (3), its copper pipe (21) one ends are connected with refrigeration system; Aluminum pipe (22) one ends are connected with heat exchanger, and copper pipe (21) is coated with heat-shrink tube (23) with the junction of aluminum pipe (22).
2. according to the idle call heat exchanger of the said band copper-aluminium joint of claim 1; It is characterized in that in said copper pipe (21) the reducing insertion aluminum pipe (22); Perhaps aluminum pipe (22) reducing is inserted in the copper pipe (21); Perhaps copper pipe (21) enlarging, aluminum pipe (22) insert in it, and perhaps aluminum pipe (22) enlarging, copper pipe (21) insert in it.
3. according to the idle call heat exchanger of the said band copper-aluminium joint of claim 2, it is characterized in that between said copper pipe (21) and the aluminum pipe (22) through gas brazing, or electric resistance welding, or induction welding, or friction welding (FW) links into an integrated entity.
4. according to the idle call heat exchanger of each said band copper-aluminium joint of claim 1-3, it is characterized in that said heat-shrink tube (23) is longer with the junction of aluminum pipe (22) than copper pipe (21).
5. according to the idle call heat exchanger of the said band copper-aluminium joint of claim 4, it is characterized in that also being provided with PUR between said heat-shrink tube (23) and the copper aluminium adapter (3).
6. according to the idle call heat exchanger of the said band copper-aluminium joint of claim 4, it is characterized in that said heat-shrink tube (23) is made by polyolefine material.
7. according to the idle call heat exchanger of the said band copper-aluminium joint of claim 4, it is characterized in that said heat exchanger is provided with side plate (4).
8. according to the idle call heat exchanger of the said band copper-aluminium joint of claim 7, it is characterized in that said fin (1), U type pipe (2), pipeline fitting, side plate (4) are made by aluminium.
CN2011202669341U 2011-07-26 2011-07-26 Heat exchanger of air conditioner with copper-aluminum joint Expired - Lifetime CN202204212U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202669341U CN202204212U (en) 2011-07-26 2011-07-26 Heat exchanger of air conditioner with copper-aluminum joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202669341U CN202204212U (en) 2011-07-26 2011-07-26 Heat exchanger of air conditioner with copper-aluminum joint

Publications (1)

Publication Number Publication Date
CN202204212U true CN202204212U (en) 2012-04-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148544A (en) * 2013-03-26 2013-06-12 东莞市金瑞五金制品有限公司 Connecting pipe for air conditioner
CN103148566A (en) * 2013-03-26 2013-06-12 东莞市金瑞五金制品有限公司 Air conditioning tube
CN105240638A (en) * 2015-11-09 2016-01-13 成都长江热缩材料有限公司 Dropping-preventing type pipe sleeve for heat-shrinkable casing pipe with limiting teeth
CN105276318A (en) * 2015-11-09 2016-01-27 成都长江热缩材料有限公司 Firm connecting pipe sleeve based on heat sealing layer
CN105917173A (en) * 2014-01-30 2016-08-31 大金工业株式会社 Air conditioner indoor unit
CN110345642A (en) * 2019-07-03 2019-10-18 宁波方太厨具有限公司 Condensing heat exchanger and its manufacturing method, gas heater
US11118795B2 (en) 2019-02-08 2021-09-14 Johnson Controls Technology Company Composite interconnection conduits for HVAC systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148544A (en) * 2013-03-26 2013-06-12 东莞市金瑞五金制品有限公司 Connecting pipe for air conditioner
CN103148566A (en) * 2013-03-26 2013-06-12 东莞市金瑞五金制品有限公司 Air conditioning tube
CN103148544B (en) * 2013-03-26 2015-10-28 东莞市金瑞五金制品有限公司 A kind of air conditioner connecting pipe
CN103148566B (en) * 2013-03-26 2016-05-04 东莞市金瑞五金制品有限公司 A kind of air conditioner piping
CN105917173A (en) * 2014-01-30 2016-08-31 大金工业株式会社 Air conditioner indoor unit
CN105917173B (en) * 2014-01-30 2017-06-30 大金工业株式会社 The indoor unit of air conditioner
CN105240638A (en) * 2015-11-09 2016-01-13 成都长江热缩材料有限公司 Dropping-preventing type pipe sleeve for heat-shrinkable casing pipe with limiting teeth
CN105276318A (en) * 2015-11-09 2016-01-27 成都长江热缩材料有限公司 Firm connecting pipe sleeve based on heat sealing layer
US11118795B2 (en) 2019-02-08 2021-09-14 Johnson Controls Technology Company Composite interconnection conduits for HVAC systems
CN110345642A (en) * 2019-07-03 2019-10-18 宁波方太厨具有限公司 Condensing heat exchanger and its manufacturing method, gas heater

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: MIDEA GROUP CO., LTD.

Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG

Effective date: 20131211

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20131211

Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28

Patentee after: Midea Group Co., Ltd.

Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6

Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120425