CN1576728A - Heat exchanger with fins and producing method thereof - Google Patents
Heat exchanger with fins and producing method thereof Download PDFInfo
- Publication number
- CN1576728A CN1576728A CNA2004100699510A CN200410069951A CN1576728A CN 1576728 A CN1576728 A CN 1576728A CN A2004100699510 A CNA2004100699510 A CN A2004100699510A CN 200410069951 A CN200410069951 A CN 200410069951A CN 1576728 A CN1576728 A CN 1576728A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- fin
- side heat
- front face
- face side
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
In a substantially L-shaped front side heat exchanger, a heat exchanger with a fin of different thicknesses of the front heat exchanger across one curved portion (the distance between a leading edge on the windward side of the fin and a trailing edge on the leeway side) is manufactured. The heat exchanger of the small thickness is disposed immediately before the fin (on the upstream side) to reduce the thickness of an air-conditioner body, and the thickness is increased in an area of higher air velocity. A curved portion on the leading edge on the windward side and the curved portion of the trailing edge on the leeway side are continuously pressed to a same shape, and efficiently produced without much wasteful materials of the fin. In addition, a press die can be easily worked by an arc-shape, and the maintenance is facilitated thereby.
Description
Technical field
The present invention relates to carry the band fin heat exchanger in the indoor unit of air conditioner.
Background technology
Below, the band fin heat exchanger of conventional art is described.
Fig. 4 is the plane that just fin of band fin heat exchanger has been carried out 1 fin after the punch process with technology in the past.Fig. 5 is that fin that the continuous punch process of the fin of Fig. 4 is formed is towards the continuously arranged plane of the feed direction of punching press.
But, be housed in occasion in the body of air conditioner, the thickness thickening of air conditioner body at the heat exchanger that will utilize conventional art.Especially, if 2 bisectors of the angle of bend of roughly " L " font at obtuse angle during as the fin of the different heat exchanger of feed direction, the making width dimensions of punch process continuously, will be produced many waste materials.
Summary of the invention
The present invention makes in order to solve above-mentioned problem in the past, and its purpose is, provides the waste material of the reduced thickness that can make the air conditioner body, generation few, can improve the air quantity performance, helps the band fin heat exchanger and the manufacture method thereof of low noiseization.
The band fin heat exchanger of the present invention's the 1st technical scheme, it is used for being made of framework that is provided with suction inlet and blow-off outlet and the cross flow fan that is housed in this framework the indoor unit of the air conditioner in wind loop, it is characterized in that, by the way in wind loop from suction inlet to cross flow fan, or front face side heat exchanger that disposes the way in wind loop and rear side heat exchanger formation from cross flow fan to blow-off outlet, described front face side heat exchanger and rear side heat exchanger, by arranging respectively with the interval of regulation and many fins of gas flow are arranged betwixt and generally perpendicularly inserting with described fin, the many heat-transfer pipes that have fluid to flow in inside constitute, the windward leading edge of the described fin of described front face side heat exchanger and leeward trailing edge form the roughly L font at the obtuse angle that constitutes by 2 line parts that constitute identical obtuse angle with 1 curve part that connects between described 2 straight lines respectively, make the windward leading edge of described 2 line parts that accompany this 1 curve part and the width dimensions between the leeward trailing edge in the upper and lower difference.
The present invention adopts said structure, has 2 line parts constituting identical obtuse angle, is being in the heat exchanger of fin of parallel windward leading edge and leeward trailing edge, makes wind speed profile stable and bias current and turbulent composition are reduced.This can improve the air quantity performance and help low noiseization.Say further that again the width dimensions of heat exchanger directly exerts an influence to the size of flowing resistance.That is, owing to make parallel with the leeward trailing edge windward leading edge and identical as long as parallel then width dimensions becomes, wind speed in each zone does not just have big difference so flowing resistance becomes identical.Therefore, bias current is few, and turbulent flow reduces.
In addition, the windward leading edge of front face side fin and leeward trailing edge, by will connecting between 2 straight lines with curve part, the water that flows down from the top of front face side heat exchanger reveals easily and flows to the bottom along heat exchanger, and successfully transmits mobile from the top of the fin of front face side heat exchanger to the bottom.If the top and the bottom of front face side heat exchanger are made the structure that intersects with straight line, the water that then flows down from top reveals can not flow down the danger that existence is forwards splashed sleekly to the bottom.
In addition, the band fin heat exchanger of the present invention's the 2nd technical scheme is characterized in that, on the basis of described the 1st technical scheme, makes the windward leading edge of the fin of described front face side heat exchanger and the described curve part separately of leeward trailing edge identical shaped.
By the windward leading edge of described front face side heat exchanger and the described curve part separately of leeward trailing edge are made identical shape, when described fin is carried out continuous punch process, can not produce the useless waste material of described fin, can produce efficiently.
In addition, by curve part being made identical shape because the thickness of heat exchanger is little by little changed at this curve part, thus the flowing resistance in heat exchanger also change, so flow velocity is also with regard to little by little variation.Therefore, reduce turbulent flow, improve wind pushing performance in heat exchanger inside.
In addition, the band fin heat exchanger of the present invention's the 3rd technical scheme, it is characterized in that, be the described the 1st or the basis of the 2nd technical scheme on, the described windward leading edge of the described fin of described front face side heat exchanger and the described curve part separately of described leeward trailing edge are made circular shape.
By the described windward leading edge of the described fin of described front face side heat exchanger and the described curve part separately of described leeward trailing edge are made circular shape, just can easily carry out the processing and the maintenance of the diel of fin.
In addition, by curve part is made circular shape, the water that flows down from the front face side heat exchanger reveals mobile along heat exchanger easily, just mobile along the heat exchanger bottom easily.
In addition, the band fin heat exchanger of the present invention's the 4th technical scheme is characterized in that, be the described the 1st or the basis of the 2nd technical scheme on, the windward leading edge of described rear side heat exchanger constitutes with parallel straight line with the leeward trailing edge.
Owing to the windward leading edge of rear side heat exchanger is constituted with parallel straight line with the leeward trailing edge and the windward leading edge of front face side heat exchanger and the line part of leeward trailing edge is constituted with parallel straight line, so can carry out punch process (top of front face side heat exchanger and the bottom of rear side heat exchanger can be formed continuously) continuously to the fin of front face side heat exchanger and rear side heat exchanger.Thus, fin no longer produces useless waste material, can reasonably produce.In addition, by the part of the boundary member of the other end of end of front face side fin and rear side fin is cut off, can easily produce the rear side heat exchanger of example of the present invention.
The band fin heat exchanger of the present invention's the 5th technical scheme is characterized in that, is on the basis of described the 1st technical scheme, does the bottom of described front face side heat exchanger thin.
As mentioned above, thin by the bottom of described front face side heat exchanger is done, the thickness of air conditioner body can be reduced.In addition, with the positive front portion of front face side heat exchanger arrangement, be effectively to improving performance at cross flow fan, at this moment the heat exchanger arrangement that reduces by the width dimensions with heat exchanger also can reduce the thickness of air conditioner body in the front face side of cross flow fan.
The manufacture method of the band fin heat exchanger of the present invention's the 6th technical scheme, it is characterized in that, when the described fin to described band fin heat exchanger carries out continuous punch process, make the fin of described heat exchanger tilt, make described front face side heat exchanger become the fin of making heat exchanger in the same manner at the feed direction width with respect to feed direction.
When the described fin to described band fin heat exchanger carries out continuous punch process, described heat exchanger is tilted with respect to feed direction, make heat exchanger in the same manner by described front face side heat exchanger is become at the feed direction width, can reduce the generation of waste material.
Description of drawings
Fig. 1 is the plane of fin of the band fin heat exchanger of example of the present invention.
Fig. 2 arranges the fin of Fig. 1 towards the feed direction of punching press 2 plane continuously.
Fig. 3 is the longitudinal section of indoor unit of air conditioner that contains the band fin heat exchanger of the embodiment of the invention.
Fig. 4 is the fin plane of band fin heat exchanger of example in the past.
Fig. 5 arranges the fin of routine in the past Fig. 4 towards the feed direction of punching press 2 plane continuously.
The specific embodiment
Below, with reference to accompanying drawing example of the present invention is described.
Fig. 1 is the plane with 1 fin after the firm punch process of fin of band fin heat exchanger.Fig. 2 is the plane that is arranged with the fin of several pieces Fig. 1 that make through continuous punch process towards the feed direction of punching press continuously.Fig. 3 is the longitudinal section that contains the indoor unit of the air conditioner of being with fin heat exchanger.
The front face side fin 2A of front face side heat exchanger 2 forms the roughly L font at obtuse angle.That is, front face side fin 2A has: the windward leading edge 2B that intersects obtuse-angulate 2 line part 2-O-1 and line part 2-O-2 and the curve part 4-O that these line parts connect is constituted on extended line; The leeward trailing edge 2C that similarly on extended line, intersects obtuse-angulate 2 line part 2-I-1 and line part 2-I-2 and the curve part 4-I that these line parts connect is constituted, and form the L font at obtuse angle.Curve part 4-O, 4-I have elliptic curve, hyperbola, spline curve etc.Here, the mean breadth size between line part 2-O-1 and the 2-I-1 being made as A, the mean breadth size between line part 2-O-2 and the 2-I-2 being made as the occasion of B, become the relation of B＜A.This be accompany this curve part 4-O, 4-I described front face side heat exchanger 2 front face side fin 2A width dimensions (distance of the windward leading edge 2B of described fin 1 and leeward trailing edge 2C), be the band fin heat exchanger that A and B are not all feature.Be configured in the bottom of front face side heat exchanger 2 by the B that the width dimensions of heat exchanger is little, the body thickness of indoor unit is reduced.In addition, from improving the viewpoint of heat exchanger ability, be effective at the big fin of width dimensions of the fin 1 of the fast area configurations heat exchanger of wind speed.
Here, identical shaped as if this curve part 4-O, 4-I are made, when carrying out continuous punch process, described fin can not produce too many useless waste material, can produce efficiently.
In addition, by this curve part 4-O, 4-I are made arc sections, just can carry out the processing and the maintenance of the diel of fin easily.
In addition, because the windward leading edge 3B of rear side heat exchanger 3 is constituted with parallel straight line with leeward trailing edge 3C and the windward leading edge 2B of front face side heat exchanger 2 and the line part 2-O-1 of leeward trailing edge 2C is constituted with parallel straight line with 2-I-1, so can be as shown in Figure 1 and Figure 2 the fin 1 of front face side heat exchanger 2 and rear side heat exchanger 3 be carried out punch process (in Fig. 2, can with the top of front face side heat exchanger 2 and the bottom shaping integratedly continuously of rear side heat exchanger) continuously.Thus, can the situation that fin 1 produces useless waste material be suppressed and produce economically.In addition, carry out partial cutoff, can easily produce the rear side heat exchanger 3 of example of the present invention by boundary member with the other end of the end of front face side fin 2A and rear side fin 3A.
As shown in Figure 2, the feed direction towards punching press is arranged with continuously through carrying out punch process continuously makes the situation that the waste material that produces in the plane of fin of 2 Fig. 1 suppresses and describe.Here, mean breadth size between 2-O-1 and the 2-I-1 is made as A, mean breadth size between 2-O-2 and the 2-I-2 is made as B, the angle of bend of the front face side fin 2A that line part 2-I-1 and 2-I-2 are intersected is made as T, the straight line that feed direction (left and right directions of Fig. 2) that will be when punch process extends is made as α with the angle that the straight line vertical with the windward leading edge 3B of rear side heat exchanger 3 intersects, the straight line that feed direction that will be when punch process extends is made as β with the angle that the straight line vertical with line part 2-I-2 intersects, the width of sending to during with punch process is made as X, then sets up following relational expression.
COSα＝A/X COSβ＝B/X
β＝α+T
Here, because the value of A, B, T is known, unknown number is α, β, X, so can derive unknown number α, β, X from 3 kinds of relational expressions.Thus, be identical by heat exchanger being manufactured at the feed direction width, just can greatly reduce the generation of waste material.
Fig. 3 represents to accommodate the indoor unit 8 of the air conditioner of being with fin heat exchanger.Pass through filter 9 by suction inlet 15 from the air that room space is taken into, enter front face side heat exchanger 2 and rear side heat exchanger 3, the fan 10 that carries out being rotated after the heat exchange sucks.And heat-exchanged air is emitted to the outside from blow-off outlet 16 by the wind path 13 that is made of stabilizer 11, back cover 12 after blowing out from fan 10.In addition, the 14th, the many heat-transfer pipes that generally perpendicularly insert with described fin, have fluid to flow in inside.
By with the shape of the fin 1 of heat exchanger, as previously mentioned, the mean breadth size B between line part 2-O-2 and the 2-I-2 is reduced, owing to can reduce the size of indoor set of the fore-and-aft direction (left and right directions of Fig. 3) at thickness effect to the body of indoor set center quite big, by fan 10, so can reduce the body thickness of indoor unit 8.In addition, the thickness of heat exchanger can be increased, the heat exchanger ability can be improved at the big position of wind speed.
As mentioned above, band fin heat exchanger of the present invention, from above-mentioned example as can be known, utilization is used for the front face side heat exchanger of indoor unit of air conditioner and the form and the manufacture method thereof of the band fin heat exchanger that the rear side heat exchanger is constituted, the windward leading edge of the fin of front face side heat exchanger and leeward trailing edge are formed the roughly L font at the obtuse angle that the curve part by 2 long line parts that constitute identical obtuse angle and 1 weak point between 2 straight lines 2 straight lines being connect constitutes respectively, make the curve part of windward leading edge and the curve part of leeward trailing edge identical shaped, the windward leading edge of the fin of rear side heat exchanger forms with parallel straight line with the leeward trailing edge, and the windward leading edge of 2 line parts that accompany this 1 curve part and the width dimensions between the leeward trailing edge are form differently.And, be configured in the dead ahead (upstream side) of fan by the side that the thickness of described heat exchanger is little, can reduce the body thickness of the indoor unit of air conditioner.
In addition, analyze, and the part that the width of heat exchanger is big is configured in the fast zone of wind speed, can improves the heat exchanger ability by wind speed profile to inflow region.
In addition, make identical shape with the curve part of leeward trailing edge, when carrying out continuous punch process, do not produce the useless waste material of described fin, can produce efficiently by curve part with the windward leading edge.
In addition, make identical circular shape with the curve part of leeward trailing edge, just can easily carry out the processing and the maintenance of the diel of fin by curve part with the windward leading edge.
In addition, the windward leading edge of rear side heat exchanger is passed through to constitute with parallel straight line with the leeward trailing edge, and since the top of the windward leading edge of front face side heat exchanger and leeward trailing edge with parallel straight line formation, so the fin of front face side heat exchanger and rear side heat exchanger can be carried out continuously punch process (can the bottom of front face side fin top and rear side fin is integrally formed).Thus, fin no longer produces useless waste material, can reasonably produce.In addition, by partial cutoff, can easily produce the rear side heat exchanger of example of the present invention.
In addition, when the described fin to the band fin heat exchanger carries out continuous punch process, described heat exchanger is tilted with respect to feed direction and make the different described front face side heat exchanger of width dimensions (the windward leading edge of described fin and the distance between the leeward trailing edge) of top with the bottom of the front face side fin that accompanies described curve part, by being become, the feed direction width makes heat exchanger in the same manner, as 1 fin, carry out continuous punch process, so fin not too produces waste material, can make at an easy rate efficiently.
Claims (6)
1, a kind of band fin heat exchanger, the indoor unit that it is used for being made of framework that is provided with suction inlet and blow-off outlet and the cross flow fan that is housed in this framework the air conditioner in wind loop is characterized in that,
Described band fin heat exchanger by the way in wind loop from suction inlet to cross flow fan or the front face side heat exchanger that disposes the way in wind loop and rear side heat exchanger from cross flow fan to blow-off outlet constitute,
Described front face side heat exchanger and rear side heat exchanger, by arrange respectively with the interval of regulation and have betwixt many fins of gas flow and generally perpendicularly insert with described fin, have many heat-transfer pipes that fluid flows constitute in inside,
The windward leading edge of the described fin of described front face side heat exchanger and leeward trailing edge, the roughly L font, the windward leading edge that makes described 2 line parts that accompany this 1 curve part and the width dimensions between the leeward trailing edge that form the obtuse angle that constitutes by 2 line parts that constitute identical obtuse angle with 1 curve part that connects between described 2 straight lines respectively are in the upper and lower difference.
2, band fin heat exchanger as claimed in claim 1 is characterized in that, makes the windward leading edge of the fin of described front face side heat exchanger and the curve part separately of leeward trailing edge identical shaped.
3, band fin heat exchanger as claimed in claim 1 or 2 is characterized in that, the described windward leading edge of the described fin of described front face side heat exchanger and the described curve part separately of described leeward trailing edge are made circular shape.
As each described band fin heat exchanger of claim 1 or 2, it is characterized in that 4, the windward leading edge of described rear side heat exchanger constitutes with parallel straight line with the leeward trailing edge.
5, band fin heat exchanger as claimed in claim 1 is characterized in that, does the bottom of described front face side heat exchanger thin.
6, a kind of manufacture method with fin heat exchanger, it is characterized in that, when the described fin to described band fin heat exchanger carries out continuous punch process, make the fin of described heat exchanger tilt, make the feed direction width of described front face side heat exchanger become the fin of making heat exchanger in the same manner with respect to feed direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003197145 | 2003-07-15 | ||
| JP2003197145A JP3938109B2 (en) | 2003-07-15 | 2003-07-15 | Manufacturing method of heat exchanger with fins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1576728A true CN1576728A (en) | 2005-02-09 |
| CN100532958C CN100532958C (en) | 2009-08-26 |
Family
ID=34207386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100699510A Active CN100532958C (en) | 2003-07-15 | 2004-07-15 | Heat exchanger with fins and producing method thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3938109B2 (en) |
| KR (1) | KR20050008484A (en) |
| CN (1) | CN100532958C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907374A (en) * | 2010-07-23 | 2010-12-08 | 广东美的电器股份有限公司 | Finned tube type heat exchanger and manufacture method thereof |
| CN103277943A (en) * | 2013-05-31 | 2013-09-04 | 向运明 | Heat exchanger |
| CN103900152A (en) * | 2012-12-28 | 2014-07-02 | 松下电器产业株式会社 | Air conditioner |
| WO2022252681A1 (en) * | 2021-06-01 | 2022-12-08 | 广东美的暖通设备有限公司 | Wall-mounted air conditioner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4075947B2 (en) * | 2006-07-18 | 2008-04-16 | ダイキン工業株式会社 | Heat exchanger, air conditioner and heat exchanger manufacturing method |
| JP2010216673A (en) * | 2009-03-13 | 2010-09-30 | Daikin Ind Ltd | Air conditioner |
| JP2013217585A (en) * | 2012-04-10 | 2013-10-24 | Panasonic Corp | Heat exchanger with fin |
| CN108954794B (en) * | 2018-08-31 | 2023-11-10 | 四川长虹空调有限公司 | Heat exchange assembly of air conditioner cross-flow fan |
-
2003
- 2003-07-15 JP JP2003197145A patent/JP3938109B2/en not_active Expired - Lifetime
-
2004
- 2004-07-09 KR KR1020040053504A patent/KR20050008484A/en not_active Application Discontinuation
- 2004-07-15 CN CNB2004100699510A patent/CN100532958C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907374A (en) * | 2010-07-23 | 2010-12-08 | 广东美的电器股份有限公司 | Finned tube type heat exchanger and manufacture method thereof |
| CN101907374B (en) * | 2010-07-23 | 2012-07-18 | 广东美的电器股份有限公司 | Finned tube type heat exchanger and manufacture method thereof |
| CN103900152A (en) * | 2012-12-28 | 2014-07-02 | 松下电器产业株式会社 | Air conditioner |
| CN103900152B (en) * | 2012-12-28 | 2018-08-03 | 松下电器产业株式会社 | Air regulator |
| CN103277943A (en) * | 2013-05-31 | 2013-09-04 | 向运明 | Heat exchanger |
| WO2022252681A1 (en) * | 2021-06-01 | 2022-12-08 | 广东美的暖通设备有限公司 | Wall-mounted air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100532958C (en) | 2009-08-26 |
| KR20050008484A (en) | 2005-01-21 |
| JP2005036991A (en) | 2005-02-10 |
| JP3938109B2 (en) | 2007-06-27 |
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