CN102338569A - Heat exchanger structure and assembly method thereof - Google Patents

Heat exchanger structure and assembly method thereof Download PDF

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Publication number
CN102338569A
CN102338569A CN2010102276408A CN201010227640A CN102338569A CN 102338569 A CN102338569 A CN 102338569A CN 2010102276408 A CN2010102276408 A CN 2010102276408A CN 201010227640 A CN201010227640 A CN 201010227640A CN 102338569 A CN102338569 A CN 102338569A
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CN
China
Prior art keywords
fin
heat exchanger
locating hole
pipe
fins
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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.)
Pending
Application number
CN2010102276408A
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Chinese (zh)
Inventor
崔静
车金峰
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Publication date
Application filed by LG Electronics Tianjin Appliances Co Ltd filed Critical LG Electronics Tianjin Appliances Co Ltd
Priority to CN2010102276408A priority Critical patent/CN102338569A/en
Publication of CN102338569A publication Critical patent/CN102338569A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a heat exchanger structure, which comprises fins and flat pipes, wherein the flat pipes are arranged in pipeline slots and are positioned and connected with the fins, positioning holes are formed in the fins, and flanges are formed in the positioning holes. The invention also discloses an assembly method of the heat exchanger structure, which comprises the following steps: (1) the fins are stacked, the pipeline slots are correspondingly arranged, and the adjacent fins are spaced by the flanges of the positioning holes; (2) positioning rods matched with the positioning holes are inserted into the positioning holes of the stacked fins; (3) the flat pipes are inserted into the pipeline slots so as to be fixedly connected with the fins; and (4) the positioning rods are pulled out from the positioning holes, and the fins and the flat pipes, which are fixedly connected, are placed in a heating furnace to be welded. According to the invention, the corners of the fins are provided with the positioning holes, and the spaces between the adjacent fins are respectively positioned by the flanges of the positioning holes, so that the flanges of the pipeline slots are prevented from being influenced, and the heat exchange efficiency of a heat exchanger is improved; in addition, the fins are positioned by the positioning rods, so that the flat pipes can be conveniently inserted into the positioning holes of the fins, and further, the flat pipes and the fins are more simply fixed.

Description

Heat exchanger structure and assembly method thereof
Technical field
The present invention relates to a kind of condenser, particularly a kind of heat exchanger structure and assembly method thereof.
Background technology
When room air conditioner moved at cooling condition, the room air evaporimeter of flowing through made temperature reduce.Simultaneously because the temperature of evaporator surface generally is starkly lower than the dew-point temperature of air, so air is when flowing through evaporator surface, and airborne part moisture will be separated out, thereby forms condensate at evaporator surface.Condensate at evaporator surface should in time be drained; If it is more that condensate is gathered at evaporator surface,, increase the flow resistance of air with the obstruct airflow road; Efficient with the reduction evaporimeter: water droplet also might take place be blown into indoor situation, cause the off quality of air-conditioner.
Fin-tube heat exchanger is a heat exchanger pattern with the most use in the present refrigerating air conditioning device, and room air conditioner and air-cooled handpiece Water Chilling Units mostly adopt this heat exchanger.This heat exchanger is adding man-hour, is punching on fin, flange, and the height of flange is the spacing between fin, and the annulus that flange forms is enclosed within on the pipe, makes that fin is able to through this annulus and pipe excellent contact arranged, and improves heat transfer efficiency.
Fig. 1 is the heat exchanger structure sketch map of prior art air-conditioning.Fig. 2 is the cross sectional view of heat exchanger structure shown in Figure 1.Like Fig. 1, shown in Figure 2, the multiple input multiple output type tube-strip heat exchanger structure of prior art, it comprises fin 3 and the flat tube 2 that runs through fin 3; Wherein said flat tube is a high frequency aluminium welded tube; For guarantee flat tube 2 and fin 3 combine have good thermal diffusivity, employing be that the mode of welding combines both, the upper end of flat tube 2 is welded to connect with inlet header 1 with being communicated with; The lower end of flat tube 2 is welded to connect with outlet header 4 with being communicated with; Thereby the refrigerant in the inlet header 1 disperses to flow in a plurality of flat tubes 2, is compiled in the outlet header 4 through after the heat exchange, facilitates heat exchanger like this and is connected with exterior line.
In existing nest plate type flat tubular fin, can only use the distance that turn-up portion assigns to locate fin and fin.Owing to the restriction of flat tube and pipe-line tank size, make the flange insufficient height of fin, flange can only have the height about 1mm at most, can not regulate control FPI and wind resistance, influences exchange capability of heat.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming that overcomes prior art, and a kind of fin structure is provided, and it is provided with the locating hole that the flange height conveniently is set, and improves the regulating power to FPI (inches is apart from the number of plies of inner fin) and windage.
The technical scheme that the present invention adopted is:
A kind of heat exchanger structure, it comprise the fin that is provided with pipe-line tank and coupling ground be inserted into the pipe-line tank of said fin interior and with the flat tube that fin is located by connecting, on described fin, be formed with locating hole, described locating hole is formed with flange.
The diagonal angle setting of described locating hole perhaps is arranged on each fin angle.
Described fin pipe-line tank is U-shaped or round rectangle structure.
The end of described locating hole flange is formed with radius and progressively becomes big loudspeaker opening shape expansion limit.
U-shaped pipe-line tank and fin side oblique.
A kind of heat exchanger assembly method as claimed in claim 1 may further comprise the steps:
1) fin is piled up, pipe-line tank is corresponding to be provided with, and the flange of locating hole is spaced apart and guarantee the spacing between two fins with adjacent fin;
2) will insert with the locating bar that described locating hole is complementary in the fin locating hole that piles up;
3) insert flat tube in the pipe-line tank successively and realize being fixedly connected of flat tube and fin;
4), and fin that is fixedly connected and flat tube be placed in the heating furnace weld the solder bond of realization flat tube and fin with extracting in the self-align hole of locating bar.
Preferably, for avoiding the locating hole flange unaffected, the opposition side of the self-align hole flanging of described locating bar inserts in the fin locating hole that piles up.
It between described locating bar and the locating hole matched in clearance.
The invention has the beneficial effects as follows: aim of the present invention is on the angle of fin, to be provided with at least one pair of locating hole; Utilize locating hole flange location adjacent fins spacing, the radius of locating hole and the setting of flange height are not influenced by flat tube and pipe-line tank, can be provided with according to the FPI design pitch fully; Protected the pipe-line tank flange unaffected; The integrality of the pipe-line tank flange that has guaranteed simultaneously to contact with flat tube has improved the exchanger heat exchange efficiency, and the present invention adopts the locating bar that runs through locating hole that fin is carried out horizontal location; Make things convenient for the insertion of flat tube; Save fin fixed station structure, made that the fixing operation of flat tube and fin is simpler, improved production efficient.
Description of drawings
Fig. 1 is the heat exchanger structure sketch map of prior art air-conditioning;
Fig. 2 is the cross sectional view of heat exchanger structure shown in Figure 1;
Fig. 3 is a fin structure sketch map of the present invention;
Fig. 4 is the local enlarged diagram of locating hole shown in Figure 3;
Fig. 5 is an assembling process sketch map of the present invention;
Fig. 6 is a flat tube assembling process sketch map of the present invention;
Fig. 7 is a heat exchanger structure sketch map of the present invention;
Fig. 8 is the second fin structure sketch map of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explain:
Shown in Fig. 3 and 4, fin 13 is the rectangular aluminum thin slice, offers many group punching (not shown)s on it evenly and at intervals, and described punching helps air-flow and circulates within it to strengthen the radiating effect of radiator.Between two groups of punchings, offer U-shaped pipe-line tank 32; The width of described pipe-line tank 32 is a bit larger tham the thickness at flat tube 22; Make flat tube 22 can successfully get in the pipe-line tank 32; Preferably, flow out for ease of condensed water, the angle between the bearing of trend of described U-shaped pipe-line tank 32 and the fin seamed edge is the oblique angle.
Further, be provided with flange around the described pipe-line tank 32, to strengthen being connected between fin 13 and the flat tube 22.
On fin 13 of the present invention, also be provided with the flange 34 that punching press is formed with locating hole 33 and forms because of punching press locating hole 33, described flange 34 is provided with around locating hole 33.For reducing of the influence of described locating hole to the air flow stream general character between fin; Described locating hole 33 operated by rotary motion are at lateral edges or four jiaos of places of fin; Wherein, described locating hole 33 can be formed on two corners on the diagonal of fin 13 symmetrically or on the every nook and cranny, be provided with, and described locating hole 33 be circular perhaps square structure; Circular configuration preferably; Its radius is looked the FPI difference of setting and is changed, and the aperture can be controlled at 4-7mm, and the flange that described locating hole forms when punching press is higher than pipe-line tank flange; And be formed with radius in the end of locating hole flange 34 and progressively become big loudspeaker opening shape expansion limit 35, avoid it that deformation takes place with the carrying that increases flange 34.
Shown in accompanying drawing 6 or 7; Flat tube 22 of the present invention is hollow flat tube or micro-channel flat; Be generally aluminium matter flat tube; Described micro-channel flat is for being provided with a plurality of demarcation strips in its tube chamber, demarcation strip is divided into several not connected microchannels equably along the duct orientation extension of flat tube and with tube chamber.
To combine the simple assemble method of describing heat exchanger of the present invention of Fig. 5 to Fig. 7 structure of the present invention and aim to be set forth further below with it:
At first, fin is piled up, pipe-line tank is corresponding to be provided with, and the flange of locating hole is spaced apart and guarantee the spacing between two fins with adjacent fin;
Second step; The opposition side of the locating bar 38 self-align hole flangings that will be complementary with described locating hole inserts in the fin that piles up; Leave certain clearance between described locating bar 38 and the locating hole 33; Generally about 0.1-0.2mm, convenient locating bar is inserted perhaps extracted when with assurance fin being realized the location.
The 3rd step, the opening of flat tube from the U-shaped pipe-line tank inserted in the fin of folding successively, realize being fixedly connected of flat tube and fin until inserting the pipe-line tank penetralia fully;
In the 4th step, with extracting in the self-align hole of locating bar, and fin that is fixedly connected and flat tube be placed in the heating furnace weld the solder bond of realization flat tube and fin.
Process such as the welding of other steps such as flat tube and collector and prior art are as good as so repeat no more at this.
In the present invention, utilize locating hole flange location adjacent fins spacing, and the radius of locating hole and the setting of flange height are not influenced by flat tube and pipe-line tank; Can be provided with according to the FPI design pitch fully, protect the pipe-line tank flange unaffected, guarantee the contact-making surface of pipe-line tank flange and flat tube; Improved the exchanger heat exchange efficiency; And the present invention adopts locating bar that fin is carried out horizontal location, makes things convenient for the insertion of flat tube, has saved fin fixed station structure; Operate simplyr, improved production efficient.
Further; Described fin pipe-line tank not only is confined to the U-shaped structure; Pipe-line tank to offering round rectangle on it can adopt implementation method of the present invention equally, and is as shown in Figure 8, and fin 50 is the rectangular aluminum thin slice; Offer the punching 51 of many groups on it evenly and at intervals, described punching helps air-flow and circulates within it to strengthen the radiating effect of radiator.Between two groups of punchings, offer round rectangle pipe-line tank 52; The width of described pipe-line tank 52 is a bit larger tham the thickness at flat tube; Flat tube can successfully be got in the pipe-line tank; For strengthening the contact-making surface between described fin and the flat tube, improve heat exchange efficiency, around described pipe-line tank 52, form turnup structure.Wherein, on described fin 50, also offer the locating hole 53 that comprises flange, for reducing of the influence of described locating hole to the air flow stream general character between fin; Described locating hole 53 operated by rotary motion are at lateral edges or four jiaos of places of fin; Wherein, described locating hole 53 can be formed on two corners on the diagonal of fin 50 symmetrically or on the every nook and cranny, be provided with, and described locating hole 53 be circular perhaps square structure; Circular configuration preferably; Its radius is looked the FPI difference of setting and is changed, and the aperture can be controlled at 4-7mm, and the flange that described locating hole forms when punching press is higher than pipe-line tank flange; And be formed with radius in the end of locating hole flange 53 and progressively become big loudspeaker opening shape expansion limit, avoid it that deformation takes place with the carrying that increases flange 53.Present embodiment utilizes the locating hole flange to realize that spacing is confirmed between fin equally; Utilization runs through the locating bar realization of locating hole to piling up the fin location; Then the opposite side of flat tube from the fin flange inserted, its assembling process and effect and above-mentioned basic identical are so repeat no more at this.
In sum, aim of the present invention is at least one pair of locating hole is set on the angle of fin, utilizes locating hole flange location adjacent fins spacing; The radius of locating hole and the setting of flange height are not influenced by flat tube and pipe-line tank, can be provided with according to the FPI design pitch fully, have protected the pipe-line tank flange unaffected; The integrality of the pipe-line tank flange that has guaranteed simultaneously to contact with flat tube has improved the exchanger heat exchange efficiency, and the present invention adopts the locating bar that runs through locating hole that fin is carried out horizontal location; Make things convenient for the insertion of flat tube; Save fin fixed station structure, made that the fixing operation of flat tube and fin is simpler, improved production efficient.
The above only is a preferred implementation of the present invention; Should be understood that; For those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching; As change locating hole shape or position etc. are set, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (8)

1. heat exchanger structure, it comprise the fin that is provided with pipe-line tank and coupling ground be inserted into the pipe-line tank of said fin interior and with the flat tube that fin is located by connecting, it is characterized in that: on described fin, be formed with locating hole, described locating hole is formed with flange.
2. heat exchanger structure as claimed in claim 1 is characterized in that: the diagonal angle setting of described locating hole perhaps is arranged on each fin angle.
3. heat exchanger structure as claimed in claim 1 is characterized in that: described fin pipe-line tank is U-shaped or round rectangle structure.
4. heat exchanger structure as claimed in claim 1 is characterized in that: the end of described locating hole flange is formed with radius and progressively becomes big loudspeaker opening shape expansion limit.
5. heat exchanger structure as claimed in claim 3 is characterized in that: U-shaped pipe-line tank and fin side oblique.
6. a heat exchanger assembly method as claimed in claim 1 is characterized in that, may further comprise the steps:
1) fin is piled up, pipe-line tank is corresponding to be provided with, and the flange of locating hole is spaced apart and guarantee the spacing between two fins with adjacent fin;
2) will insert with the locating bar (38) that described locating hole is complementary in the fin locating hole that piles up;
3) insert flat tube in the pipe-line tank successively and realize being fixedly connected of flat tube and fin;
4), and fin that is fixedly connected and flat tube be placed in the heating furnace weld the solder bond of realization flat tube and fin with extracting in the self-align hole of locating bar.
7. heat exchanger assembly method as claimed in claim 6 is characterized in that: the opposition side locating hole of the self-align hole flanging of locating bar in the described step 2.
8. heat exchanger assembly method as claimed in claim 6 is characterized in that: be matched in clearance between described locating bar and the locating hole.
CN2010102276408A 2010-07-16 2010-07-16 Heat exchanger structure and assembly method thereof Pending CN102338569A (en)

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CN2010102276408A CN102338569A (en) 2010-07-16 2010-07-16 Heat exchanger structure and assembly method thereof

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Application Number Priority Date Filing Date Title
CN2010102276408A CN102338569A (en) 2010-07-16 2010-07-16 Heat exchanger structure and assembly method thereof

Publications (1)

Publication Number Publication Date
CN102338569A true CN102338569A (en) 2012-02-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968610A (en) * 2013-02-05 2014-08-06 珠海格力电器股份有限公司 Air conditioner and micro-channel heat exchanger thereof
CN109186308A (en) * 2018-09-19 2019-01-11 珠海格力电器股份有限公司 Heat exchange fin, micro-channel heat exchanger and heat pump system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679380A (en) * 1992-09-02 1994-03-22 Showa Alum Corp Manufacture of heat exchanger
JPH0829084A (en) * 1994-07-13 1996-02-02 Hitachi Ltd Alignment method of laminated plate
CN1550285A (en) * 2003-05-09 2004-12-01 日高精机株式会社 Heat exchanger fin overlying device
JP2008121921A (en) * 2006-11-09 2008-05-29 Matsushita Electric Ind Co Ltd Heat exchanger
CN201417108Y (en) * 2009-06-25 2010-03-03 山西汾西热能工程有限公司 Air cooler fin
CN101769689A (en) * 2009-01-05 2010-07-07 三菱电机株式会社 Heat exchanger, method of manufacturing a heat exchanger and air conditioner with the heat exchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679380A (en) * 1992-09-02 1994-03-22 Showa Alum Corp Manufacture of heat exchanger
JPH0829084A (en) * 1994-07-13 1996-02-02 Hitachi Ltd Alignment method of laminated plate
CN1550285A (en) * 2003-05-09 2004-12-01 日高精机株式会社 Heat exchanger fin overlying device
JP2008121921A (en) * 2006-11-09 2008-05-29 Matsushita Electric Ind Co Ltd Heat exchanger
CN101769689A (en) * 2009-01-05 2010-07-07 三菱电机株式会社 Heat exchanger, method of manufacturing a heat exchanger and air conditioner with the heat exchanger
CN201417108Y (en) * 2009-06-25 2010-03-03 山西汾西热能工程有限公司 Air cooler fin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968610A (en) * 2013-02-05 2014-08-06 珠海格力电器股份有限公司 Air conditioner and micro-channel heat exchanger thereof
CN103968610B (en) * 2013-02-05 2016-07-06 珠海格力电器股份有限公司 Air conditioner and micro-channel heat exchanger thereof
CN109186308A (en) * 2018-09-19 2019-01-11 珠海格力电器股份有限公司 Heat exchange fin, micro-channel heat exchanger and heat pump system
CN109186308B (en) * 2018-09-19 2024-05-03 珠海格力电器股份有限公司 Heat exchange fin, micro-channel heat exchanger and heat pump system

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Application publication date: 20120201