KR20120038621A - Manufacturing method of pipe using heat exchanger - Google Patents

Manufacturing method of pipe using heat exchanger Download PDF

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Publication number
KR20120038621A
KR20120038621A KR1020100100164A KR20100100164A KR20120038621A KR 20120038621 A KR20120038621 A KR 20120038621A KR 1020100100164 A KR1020100100164 A KR 1020100100164A KR 20100100164 A KR20100100164 A KR 20100100164A KR 20120038621 A KR20120038621 A KR 20120038621A
Authority
KR
South Korea
Prior art keywords
copper pipe
heat dissipation
pipe
copper
diameter
Prior art date
Application number
KR1020100100164A
Other languages
Korean (ko)
Inventor
안명자
Original Assignee
(주)상원엔지니어링
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 (주)상원엔지니어링 filed Critical (주)상원엔지니어링
Priority to KR1020100100164A priority Critical patent/KR20120038621A/en
Publication of KR20120038621A publication Critical patent/KR20120038621A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/14—Tube expanders with balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

In the present invention, comprising: a copper pipe formed inside the hollow and the heat dissipation fin of aluminum material fitted to the outer peripheral surface of the copper pipe; Assembling a plurality of heat dissipation fins sequentially on the outer circumferential surface of the copper pipe; Holding both ends of the copper pipe through a jig to hold a plurality of heat radiation fins so as not to flow; And expanding the diameter of the copper pipe while passing through the inside of the copper pipe so that the heat dissipation fin is firmly fixed to the outer circumferential surface of the copper pipe. A method of manufacturing a heat exchange pipe is disclosed. When the heat exchange pipe is manufactured through the manufacturing method of the heat exchange pipe according to the present invention, the ring type heat dissipation fin can be easily and firmly coupled to the outer circumferential surface of the copper pipe without soldering, thereby improving workability and enabling mass production. have.

Description

Manufacturing method of heat exchange pipe {Manufacturing method of pipe using heat exchanger}

The present invention relates to a method for manufacturing a heat exchanger pipe, and more particularly, to a method for manufacturing a heat exchanger pipe having improved workability and productivity by improving a method of coupling a ring-type heat dissipation fin to an outer circumferential surface of a copper pipe.

In general, the heat exchange pipe is used for a heat exchanger such as an oil cooler and the like, and a heat dissipation fin is usually coupled to the outer circumferential surface of the copper pipe.

Korean Utility Model Registration No. 266582 discloses a structure of a conventional heat exchange pipe. 4 and 5 of the patent, a heat exchange pipe was manufactured by winding a heat dissipation fin when a heat dissipation fin is coupled to an outer circumferential surface of a copper pipe. That is, a heat exchanging pipe was manufactured by extruding a heat radiation fin for a long time and winding it in a screw method on the outer circumferential surface of the copper pipe.

However, such a conventional manufacturing method has a problem in that mass production is difficult because of poor workability. In addition, conventionally, the soldering welding to a portion to fix the heat radiating fins to the copper pipe, there is a problem that the performance of the product is not degraded due to the gap of the falling portion when the solder is incorrectly dropped or dropped to corrosion.

The present invention has been proposed to improve the above problems, the object of which is to improve the workability and production by improving the joining method to easily and firmly combine the ring-type heat radiation fins on the outer peripheral surface of the copper pipe without soldering It is to provide a method of manufacturing a pipe.

The object described above is configured to maintain a constant distance through the space portion when the copper pipe formed inside the hollow, and has a ring shape to be fitted to the outer circumferential surface of the copper pipe and the space portion is integrally formed on one surface and inserted into the copper pipe. Providing a heat dissipation fin made of aluminum; Assembling a plurality of heat dissipation fins sequentially on an outer circumferential surface of the copper pipe; Holding both ends of the copper pipe through a jig to hold a plurality of heat radiation fins so as not to flow; And expanding the diameter of the copper pipe while passing through the inside of the copper pipe so that the heat dissipation fin is firmly fixed to the outer circumferential surface of the copper pipe. It is achieved by a method for producing a heat exchange pipe.

And the heat radiation fin is formed to be bent inwardly in the middle portion of the space portion to minimize the friction when fitted to the copper pipe, and when the diameter of the copper pipe is expanded in the state fitted to the copper pipe to be in close contact with the outer diameter of the copper pipe It is characterized in that the heat dissipation fins located at the front and back while being unfolded to be perfectly in contact without gaps.

The object described above is configured to maintain a constant distance through the space portion when the copper pipe formed inside the hollow, and has a ring shape to be fitted to the outer circumferential surface of the copper pipe and the space portion is integrally formed on one surface and inserted into the copper pipe. Providing a heat dissipation fin made of aluminum; Inserting a diameter expansion hole having a diameter larger than an inner diameter of the copper pipe to a portion of one end of the copper pipe to expand the diameter of the copper pipe; Inserting a plurality of heat dissipation fins sequentially from opposite ends of the copper pipes so that the plurality of heat dissipation fins are assembled in a state of being caught in an extended portion of the copper pipe; Pressurizing the heat dissipation fins such that the plurality of heat dissipation fins assembled to the copper pipes do not flow in close contact with the extended ends of the copper pipes; And extending the diameter of the copper pipe by allowing the diameter expansion port to pass through the inside of the copper pipe to securely radiate the heat dissipation fins to the outer circumferential surface of the copper pipe. Is achieved by

When the heat exchange pipe is manufactured through the manufacturing method of the heat exchange pipe according to the present invention, the ring type heat dissipation fin can be easily and firmly coupled to the outer circumferential surface of the copper pipe without soldering, thereby improving workability and allowing mass production. As in the prior art, there is an effect that the problem of deterioration in product performance due to poor soldering state or corrosion is not caused.

1 is a cross-sectional view showing the configuration of a heat exchange pipe according to the present invention;
2 is a process chart sequentially showing a method of manufacturing a heat exchange pipe according to the present invention;
3 is a process chart showing another embodiment of the heat exchange pipe manufacturing method according to the present invention;
Figure 4 is a cross-sectional view showing another embodiment of the heat radiation fins used in the present invention.

The present invention will now be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a heat exchange pipe according to the present invention includes a copper pipe 10 having a hollow inside and a plurality of heat dissipation fins 20 made of aluminum to be fitted to and coupled to an outer circumferential surface of the copper pipe 10. Of course, the space portion 22 is integrally formed on one surface of the heat dissipation fin 20 to be configured to maintain a constant distance from each other when fitted and coupled to the copper pipe 10.

Referring to Figure 2 describes the manufacturing method of the heat exchange pipe according to the present invention, first shown in (a) the copper pipe 10 formed of the hollow 12 and the outer peripheral surface of the copper pipe 10 It is provided with a plurality of heat dissipation fins 20 having a ring shape to be fitted and assembled. Here, the heat dissipation fin 20 has a ring shape, but the space portion 22 is integrally formed on one surface thereof so that the heat dissipation fins 20 at the front and rear are spaced apart from each other through the space portion 22 when inserted into the copper pipe 10. Configured to maintain. And the copper pipe 10 is made of copper material and the heat dissipation fin 20 is made of aluminum material is configured to excellent thermal conductivity.

Next, as shown in (b), a plurality of heat dissipation fins 20 are sequentially assembled to the outer circumferential surface of the copper pipe 10. At this time, the heat dissipation fin 20 is assembled to be continuously repeated in one direction and assembled to maintain a state in close contact with each other,

Next, as shown in (c), both ends of the copper pipe 10 are gripped through the jig 30 to hold a plurality of heat dissipation fins 20 not to flow. Here, the jig 30 may be applied to a known technique, and any technique may be applied as long as the heat sink fin 20 is not held.

Next, as shown in (d), the diameter expansion hole 40 having a diameter larger than the inner diameter of the copper pipe 10 passes through the inside of the copper pipe 10 to expand the diameter of the copper pipe 10 and The heat dissipation fins 20 on the outer circumferential surface of the pipe 10 are firmly fixed in a crimping manner. Here, the diameter expansion port 40 may be applied to a known technique, it may be configured to move along the inner hollow 12 of the copper pipe 10 by using hydraulic pressure or pneumatic.

In this way, when the diameter of the copper pipe 10 is expanded and the heat dissipation fins 20 remain fixedly coupled, the diameter expansion port 40 and the jig 30 are finally released. .

On the other hand, in the present invention, the heat dissipation fin 20 will be preferably configured to have a structure as shown in FIG. That is, the deflection portion 24 is formed to be bent inwardly in the middle portion of the space portion 22 of the heat dissipation fin 20 so as to minimize the friction when the copper pipe 10 is fitted to the copper pipe 10. When the diameter of the copper pipe 10 is expanded in a state to be in close contact with the outer diameter of the copper pipe 10 is to ensure that the heat dissipation fins 20 located in front and rear perfectly close without gaps. Applying such a heat radiation fin 20 can improve the workability and improve the quality of the product.

Meanwhile, the heat exchange pipe according to the present invention may be manufactured by the manufacturing method as shown in FIG. 3 as well as the manufacturing method according to the above-described embodiment.

Referring to Figure 3 another manufacturing method of the heat exchange pipe according to the present invention, as shown in (a) first copper pipe 10 formed of the hollow 12 and the outer peripheral surface of the copper pipe 10 It is provided with a plurality of heat radiation fins 20 having a ring shape that is fitted to the assembly. Here, the heat dissipation fin 20 has a ring shape, but the space portion 22 is integrally formed on one surface thereof so that the heat dissipation fins 20 at the front and rear are spaced apart from each other through the space portion 22 when inserted into the copper pipe 10. Configured to maintain. And the copper pipe 10 is made of copper material and the heat dissipation fin 20 is made of aluminum material is configured to excellent thermal conductivity.

Next, as shown in (b), a diameter expansion hole 40 having a diameter larger than the inner diameter of the copper pipe 10 is inserted into a portion of one end of the copper pipe 10 to extend a part of the diameter of the copper pipe 10. Let's do it.

Next, as shown in (c), the plurality of heat dissipation fins 20 are sequentially inserted in the opposite side of the expanded end of the copper pipe 10 so that the plurality of heat dissipation fins 20 are caught by the expanded portion of the copper pipe 10. To be assembled in a state. At this time, the heat dissipation fin 20 is assembled to be continuously repeated in one direction and assembled to maintain a state in close contact with each other,

Next, as shown in (d), the plurality of heat dissipation fins 20 assembled to the copper pipe 10 pressurizes the heat dissipation fins 20 so that the heat dissipation fins 20 are not in close contact with the extended ends of the copper pipe 10. At this time, the method for pressing the heat dissipation fin 20 is preferably to use a separate jig 30, it may be pressed by pushing the heat dissipation fin 20 through a pusher (not shown). In other words, any technique may be applied as long as the heat sink fins 20 are not held.

Next, as shown in (e), the diameter expansion hole 40 having a diameter larger than the inner diameter of the copper pipe 10 passes through the inside of the copper pipe 10 to expand the diameter of the copper pipe 10 and The heat dissipation fins 20 on the outer circumferential surface of the pipe 10 are firmly fixed in a crimping manner. Here, the diameter expansion port 40 may be applied to a known technique, it may be configured to move along the inner hollow 12 of the copper pipe 10 by using hydraulic pressure or pneumatic.

As such, the diameter of the copper pipe 10 is expanded to release the pressurized state and release the diameter expansion holes 40 while the heat dissipation fins 20 remain fixedly coupled. .

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

10: copper pipe 12: hollow
20: heat dissipation fin 22: space portion
24: refractive portion 30: jig
40: diameter expansion opening

Claims (3)

A copper heat pipe having a hollow inside and an aluminum heat dissipation fin having a ring shape to be fitted to the outer circumferential surface of the copper pipe and having a space portion integrally formed on one surface thereof to maintain a predetermined distance through the space portion when inserted into the copper pipe. Providing;
Assembling a plurality of heat dissipation fins sequentially on an outer circumferential surface of the copper pipe;
Holding both ends of the copper pipe through a jig to hold a plurality of heat radiation fins so as not to flow; And
Characterized in that the diameter expansion port having a diameter larger than the inner diameter of the copper pipe is passed through the inside of the copper pipe to expand the diameter of the copper pipe to ensure that the heat radiation fin is firmly fixed to the outer peripheral surface of the copper pipe Method of manufacturing heat exchange pipes.
The method of claim 1,
The heat radiating fins are formed to bend inwardly in the middle of the space part to minimize friction when fitted in the copper pipe, and when the diameter of the copper pipe is expanded in the state of being fitted in the copper pipe, the heat pipe is stretched to be in close contact with the outer diameter of the copper pipe. The heat sink pipe manufacturing method characterized in that the front and rear heat sink fins to be completely in close contact without gaps.
A copper heat pipe having a hollow inside and an aluminum heat dissipation fin having a ring shape to be fitted to the outer circumferential surface of the copper pipe and having a space portion integrally formed on one surface thereof to maintain a predetermined interval when inserted into the copper pipe. Providing;
Inserting a diameter expansion hole having a diameter larger than an inner diameter of the copper pipe to a portion of one end of the copper pipe to expand the diameter of the copper pipe;
Inserting a plurality of heat dissipation fins sequentially from opposite ends of the copper pipes so that the plurality of heat dissipation fins are assembled in a state of being caught in an extended portion of the copper pipe;
Pressurizing the heat dissipation fins such that the plurality of heat dissipation fins assembled to the copper pipes do not flow in close contact with the extended ends of the copper pipes; And
And extending the diameter of the copper pipe by allowing the diameter expansion port to pass through the inside of the copper pipe to fix the heat dissipation fin to the outer circumferential surface of the copper pipe.
KR1020100100164A 2010-10-14 2010-10-14 Manufacturing method of pipe using heat exchanger KR20120038621A (en)

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KR1020100100164A KR20120038621A (en) 2010-10-14 2010-10-14 Manufacturing method of pipe using heat exchanger

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Application Number Priority Date Filing Date Title
KR1020100100164A KR20120038621A (en) 2010-10-14 2010-10-14 Manufacturing method of pipe using heat exchanger

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KR20120038621A true KR20120038621A (en) 2012-04-24

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423922A (en) * 2013-08-30 2013-12-04 苏州科瑞森制冷科技有限公司 Novel fin heat exchanger and manufacturing method thereof
CN103447753A (en) * 2013-09-05 2013-12-18 美尔森电气保护***(上海)有限公司 Method for inlaying copper plate in aluminum bottom plate
CN103831365A (en) * 2014-02-28 2014-06-04 宁波德业科技集团有限公司 Efficient pipe expander with automatic pipe drawing function
CN104015020A (en) * 2014-06-14 2014-09-03 江苏民丰特种设备制造有限公司 Machining method for liquefaction cooler
WO2016011073A1 (en) * 2014-07-15 2016-01-21 Dometic Sweden Ab Heat exchanger coil for a recreational vehicle
USD764035S1 (en) 2014-07-15 2016-08-16 Dometic Sweden Ab Heat exchanger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423922A (en) * 2013-08-30 2013-12-04 苏州科瑞森制冷科技有限公司 Novel fin heat exchanger and manufacturing method thereof
CN103447753A (en) * 2013-09-05 2013-12-18 美尔森电气保护***(上海)有限公司 Method for inlaying copper plate in aluminum bottom plate
CN103447753B (en) * 2013-09-05 2016-06-15 美尔森电气保护***(上海)有限公司 A kind of method inlaying copper coin on aluminum soleplate
CN103831365A (en) * 2014-02-28 2014-06-04 宁波德业科技集团有限公司 Efficient pipe expander with automatic pipe drawing function
CN104015020A (en) * 2014-06-14 2014-09-03 江苏民丰特种设备制造有限公司 Machining method for liquefaction cooler
WO2016011073A1 (en) * 2014-07-15 2016-01-21 Dometic Sweden Ab Heat exchanger coil for a recreational vehicle
USD764035S1 (en) 2014-07-15 2016-08-16 Dometic Sweden Ab Heat exchanger
USD764034S1 (en) 2014-07-15 2016-08-16 Dometic Sweden Ab Heat exchanger
US10107520B2 (en) 2014-07-15 2018-10-23 Beckett Gas, Inc. Heat exchanger coil for a recreational vehicle

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