WO2014050418A1 - 空気調和機用フィン・アンド・チューブ型熱交換器 - Google Patents
空気調和機用フィン・アンド・チューブ型熱交換器 Download PDFInfo
- Publication number
- WO2014050418A1 WO2014050418A1 PCT/JP2013/073099 JP2013073099W WO2014050418A1 WO 2014050418 A1 WO2014050418 A1 WO 2014050418A1 JP 2013073099 W JP2013073099 W JP 2013073099W WO 2014050418 A1 WO2014050418 A1 WO 2014050418A1
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- Prior art keywords
- fin
- cut
- heat exchanger
- fins
- air conditioner
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
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- 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
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/006—Preventing deposits of ice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/08—Fins with openings, e.g. louvers
Definitions
- the present invention relates to a heat exchanger in which heat exchange is performed between a heat exchange fluid such as air and a refrigerant, and particularly to a fin-and-tube heat exchange suitably used for a heat exchanger for an air conditioner.
- cross fin tube type heat exchangers are mainly used as heat exchangers for air conditioners.
- This cross fin tube type heat exchanger is formed by joining a plurality of heat transfer tubes having a hairpin bent vertically to a plurality of fins and expanding the heat transfer tubes to join the fins and the heat transfer tube. It is considered to be a structure. Then, heat is exchanged between the refrigerant and the air by allowing the air to flow along the fins in the direction perpendicular to the heat transfer pipe while allowing the predetermined refrigerant to flow in the heat transfer pipe. It has become.
- Such a cross fin tube type heat exchanger is generally composed of fins made of aluminum or aluminum alloy and heat transfer tubes made of copper or copper alloy, and one large fin is made of a plurality of heat transfer tubes. It is considered to be a structure in which the For example, in an indoor heat exchanger of an air conditioner, as disclosed in JP-A-2008-138913 (Patent Document 1), an arc-shaped heat exchanger which is in a state of covering the scroll fan And, a multistage bent heat exchanger is used. Moreover, in the outdoor heat exchanger of the air conditioner, a flat heat exchanger and a heat exchanger having a bent flat shape are generally used.
- the heat exchanger is constituted by bending the refrigerant tubes to which the independent fins are attached in a zigzag manner, the brazing point is While being able to reduce, it is possible to improve productivity, and it becomes possible to measure improvement of heat exchange performance by the leading edge effect etc. which are obtained by using independent fins.
- the heat exchanger for an actual air conditioner is considered.
- the cross fin tube type heat exchanger as described above is used, and so far, the fin and tube type heat exchanger has not been adopted.
- the heat exchanger for the air conditioner is a heat exchanger (2 to 3 stages) which is relatively thin in the air flow direction as compared to the heat exchanger for the refrigerator. The reason is that the small effect obtained from the fin is considered as the reason.
- the heat exchanger described in Patent Document 3 is designed as a heat exchanger for a refrigerator, the heat transfer pipe pitch and the fin pitch (fin pitch) are large in order to suppress clogging between the fins due to frost formation. Since the heat transfer area on the air side is reduced, it has been difficult to apply the heat exchanger for an air conditioner as it is. In addition, it is difficult to apply to an arc-shaped heat exchanger as an indoor heat exchanger of an air conditioner also from the fin shape.
- Patent Document 5 discloses a heat exchanger for a refrigerator provided with a fin in which a narrow slit-like cut-and-raised part is provided parallel to the fin with respect to the fin. Is being revealed.
- Patent Document 5 discloses a heat exchanger for a refrigerator provided with a fin in which a narrow slit-like cut-and-raised part is provided parallel to the fin with respect to the fin. Is being revealed.
- the fin-and-tube heat exchangers particularly in the case where one heat transfer tube is inserted for one fin, a plurality of heat transfer tubes are inserted for one large fin. Since the size of the fin is smaller than in the case of the exchanger, and a plurality of slit-like cut and raised portions are formed in such a small fin, the fin is likely to be broken starting from the cut and raised portion of the slit It was inherent. That is, when an excessive external force is applied to the fins when assembling the heat exchanger, etc., the fins may be bent starting from the slit-like cut-and-raised portion formed on such fins, and the fin pitch may be disturbed. Cause problems such as blocking the gaps between the fins, resulting in increased ventilation resistance and heat transfer between the fins and the heat exchange fluid (air) passing between the fins. It becomes the cause of falling greatly.
- JP 2008-138913 A Japanese Utility Model Publication No. 62-156275 Japanese Utility Model Application Publication No. 59-108079 JP 10-54683 A Japanese Patent Application Laid-Open No. 10-292994
- the present invention has been made in the background of such circumstances, and the problem to be solved is that the present invention is provided at the central portion of each fin constituting a fin group consisting of a large number of fins.
- air conditioning in which bending of the fin in the slit-like cut-and-raised part provided in the fin is less likely to occur to provide a fin-and-tube type heat exchanger for aircraft.
- a square shape is disposed parallel to each other and separated by a fixed distance in the y direction perpendicular to the x direction in which the heat exchange fluid flows.
- a plurality of fin groups comprising a plurality of fins exhibiting a plurality of fins are arranged in a row at a predetermined distance from each other in the z direction perpendicular to the x direction and the y direction, and provided at the central portion of one fin
- a fin and tube type heat exchange in which the heat transfer tube is arranged in a serpentine form so as to sequentially penetrate the fin group
- each of the fins constituting the fin group is positioned corresponding to each of two regions divided into right and left at a center line in a direction parallel to the x direction passing through the insertion portion of the heat transfer tube
- a pair of narrow slit-like first and second cut-and-raised portions extending parallel
- first and second cut-and-raised portions at least a pair of first cut-and-raised portions located corresponding to the regions on both sides of the center line are arranged.
- a fin-and-tube type air conditioner for air conditioner characterized in that a cutting line defining the first direction is formed so as not to be located on a straight line in the z direction, and is disposed offset in the x direction.
- the heat exchanger shall be the summary That.
- the first positioned corresponding to the regions on both sides of the center line.
- the pair of cut and raised portions are formed to have the same width, and are displaced in the x direction by a distance of 5% to 95% of the width.
- the first and second cut-and-raised parts are cut to define their respective widths. It has a trapezoidal shape obtained by forming a region sandwiched by two of the ground wires so as to rise above the surface of the fin.
- the pair of second cut-and-raised parts positioned corresponding to the regions on both sides of the center line have score lines defining their widths. It is formed so as not to be located on a straight line in the z direction, and is arranged to be deviated in the x direction, and according to one of the further preferable embodiments, the first cut and raised portion is The z-direction is formed to have a length longer than that of the second cut-and-raised portion.
- the fins are formed in both side regions divided by the center line. , Each having two first cut and raised portions and two second cut and raised portions, and in each region, the two first cut and raised portions are respectively positioned on both end sides in the x direction
- the two second cutouts are disposed so as to be located between the two first cutouts.
- the insertion portion of the heat transfer tube is a through hole formed at a central portion of the fin and a predetermined one erected at a peripheral portion of the through hole.
- the collar portion has a flared portion at its tip, the opening of which gradually increases in diameter toward the outside. ing.
- edge convex deformation portions having heights lower than the first and second cut and raised portions are provided at both end portions of the fin in the x direction, It will be provided over the entire length in the z-direction, and according to one of the further desirable embodiments, the edge convex deformation portion is disposed to extend in the z-direction in a triangular cross-sectional shape .
- a central convex having a height lower than that of the first and second cut and raised portions is provided at the central portion in the z direction of the fin.
- a deformed portion is provided in the x direction at a length not reaching the insertion portion, and in still another desirable embodiment, the central convex deformed portion has the above-mentioned x in a triangular sectional shape. It will be arranged to extend in the direction.
- the fins are parallel to the x direction passing through the insertion portion of the heat transfer tube.
- the one corresponding to at least the first cut-and-raised portion is disposed offset in the x-direction
- the risk of bending of the fin can be effectively eliminated or reduced.
- the heat transfer improving action by the slit-like cut-and-raised portions provided in such fins can be more effectively exhibited.
- the heat exchange performance of the heat exchanger can be advantageously improved.
- FIG. 3 is a cross-sectional explanatory view showing a cross section II in FIG. 2; It is a figure which expands and shows the cut-and-raised part formed in the fin shown in FIG. 2, Comprising: (a) has shown the plane form, (b) shows the II-II cross section in (a) ing.
- FIG. 1 schematically shows one embodiment of a fin-and-tube heat exchanger for an air conditioner according to the present invention in the form of a perspective view.
- a plurality of fin groups 14 consisting of a large number of fins 12 arranged parallel to one another and at a constant distance from one another are arranged parallel to one another at a constant distance
- the heat transfer tube 16 is disposed in a meandering manner via the bending portion 18 so as to sequentially penetrate the plurality of fin groups 14.
- the fin 12 is a thin plate-like fin having a rectangular shape and formed of a predetermined metal plate made of aluminum or an aluminum alloy or the like, as in the prior art. Then, on the surface of the fin 12, as shown in FIG. 2 and FIG. 3, z is formed at the central portion of the fin 12 with the insertion hole 20 as an insertion portion through which the heat transfer tube 16 is inserted. 2 on both sides of the direction (left and right direction in FIG. 2), in other words, center lines in a direction parallel to the x direction passing through the insertion hole 20: A pair of slit-shaped first and second cut-and-raised portions 22, 24 erected with a predetermined height from the surface 12 has a predetermined distance in the x direction (vertical direction in FIG.
- the pair of first cut and raised portions 22 is positioned in a region not straddling the insertion hole 20, in other words, positioned on the left and right of the center line C to directly sandwich the insertion hole 20 2 is provided so as to be located in the upper and lower regions in FIG. 2 respectively, while the pair of the second cut-and-raised portions 24 is in the left and right regions directly sandwiching the insertion hole 20, Each is provided.
- the edge convex deformed portions 26 having a height lower than that of the slit-like first and second cut and raised portions 22 and 24 extend over the entire length in the z direction.
- a central convex deformation 28 is provided at a central portion in the z direction with a length that is located on the center line C and does not reach the insertion hole 20 (see FIG. 3 and FIG. 4).
- the first and second cut and raised portions 22 and 24 thus formed on the surface of the fin 12 are also apparent from FIG. 5 (a) showing one of the cut and raised portions 22 and 24 in an enlarged manner.
- the width (W) and the length (L) are defined by the piercing lines 30, 30 which cut the fins 12 in the thickness direction, and the fins 12 are sandwiched between such piercing lines 30, 30.
- the cut-off portion is cut and raised from the surface of the fin 12 with a predetermined height (H), and the cross-sectional shape perpendicular to the length direction of the cut and raised portion 22 is trapezoidal It is made to be a hat shape).
- Such first and second cut and raised portions 22 and 24 can be easily formed by press processing or the like as in the prior art. Further, in this case, two kinds of cut and raised portions 22 and 24 having different lengths (L) having the same width (W) are formed in the fin 12, and among them, the first cut and raised portion is formed. The portion 22 is longer than the second cut-and-raised portion 24. The fin 12 is provided with a total of eight such four pieces of the cut and raised portions 22 and 24 each having a length of two.
- the two cut lines 30 and 30 forming the first and second cut and raised portions 22 and 24 are formed so as to extend in parallel to each other in the z direction, and the x direction passing through the insertion hole 20 Center lines in a direction parallel to each other: arranged in each region divided into right and left by C, and arranged at positions substantially symmetrical with respect to such center lines C to form a pair
- the two cut and raised portions 22, 22; 24, 24 are respectively made to have the same length (L).
- the left and right cut and raised portions 22, 24 thus arranged on the surface of the fin 12 are such that the cut lines 30, 30 defining their width (W) are not located on a straight line in the z direction It is formed. That is, here, as shown in FIG.
- the distance of ⁇ 95% is displaced in the x direction.
- the displacement amount d in the pair of the first and second cut-and-raised portions 22 and 24 is, for example,
- the state where the cutting lines 30 of the corresponding first and second cut and raised portions 22, 22; 24, 24 are respectively positioned on a straight line in the z direction is the displacement amount: 0%, 6 (b), the state in which the first and second cut and raised portions 22, 24 are displaced in the x direction by a half distance of the width (W) is taken as 50% of the amount of displacement;
- W the width
- Deviation state is expressed as deviation amount: 100%.
- a fin collar 32 is provided integrally at a central portion of the fin 12 and around the insertion hole 20 through which the heat transfer tube 16 is inserted and attached. Further, on the tip side of the fin collar 32, there is formed a flared portion 34 whose opening diameter is gradually increased toward the tip (outwardly) (see FIG. 3).
- both ends of the fin 12 in the x direction have heights lower than the first and second cut and raised portions 22 and 24.
- the cross-sectional shape An edge convex deformation 26 having a substantially triangular shape is provided over the entire length in the z direction.
- a central convex deformation portion 28 having a cross-sectional shape similar to that of the edge convex deformation portion 26 is provided in a length not reaching the insertion hole 20
- the reason why the central convex deformation portion 28 is formed so as not to reach the insertion hole 20 is that when the fin 12 is manufactured by press working, it is provided upright in the insertion hole 20 or around it.
- a flat portion is required around the insertion hole 20. Therefore, the central convex deformation portion 28 is extended to the root of the insertion hole 20 (fin collar 32). It can not be extended.
- a plurality of fins 12 shaped as described above are in the y direction which is a direction perpendicular to the x direction which is the flow direction of the air as the heat exchange fluid, that is,
- the fin group 14 is formed by being arranged parallel to each other and at a predetermined interval (fin pitch) such that the thickness direction of the plate is perpendicular to the air flow direction.
- the spacing (fin pitch) between the respective fins 12 is appropriately set as in the prior art, generally, all of the spacings are about the same, and about 1.0 mm to 3.0 mm. Is desirable.
- the fin pitch is less than 1.0 mm, the influence of frost formation on the heat exchange performance due to the clogging of the fins can not be ignored.
- the fin pitch exceeds 3.0 mm, the distance between the fins becomes too large, so the number of fins inevitably decreases in the heat exchanger of the same size, resulting in heat transfer Since the area is reduced, sufficient heat transfer performance can not be exhibited, and the heat exchange performance may be lowered.
- a plurality of such fin groups 14 consisting of a large number of fins 12 are separated in a row by a predetermined distance from each other.
- the heat exchangers 10 are arranged so as to have a flat plate shape as a whole, and the heat exchanger 10 is configured as described later.
- the heat transfer tube 16 is a tube having a substantially circular cross section formed by using a metal material made of a material such as aluminum or an alloy thereof, copper or an alloy thereof, The straight portion sequentially penetrates through the insertion holes 20 formed in the center portions of the plurality of fins 12 constituting the fin group 14, and the insertion holes formed in the outer peripheral surface of the heat transfer tube 16 and the plurality of fins 12. 20 and the inner circumferential surface are in close contact.
- connection between the fins 12 and the heat transfer tube 16 can be appropriately selected and used from conventionally known various methods, and in particular, in the central portion of the fins 12, the heat transfer tube 16 is A hole having an inner diameter slightly larger than the outer diameter is opened, and after the heat transfer tube 16 is inserted into such a hole, an expanded tube plug is inserted into the heat transfer tube 16 to enlarge the outer diameter of the heat transfer tube 16 By doing this, a method for bringing the outer peripheral surface of the heat transfer tube 16 into close contact with the inner peripheral surface of the insertion hole 20 provided in the fin 12 is suitably adopted.
- FIG. 1 a heat transfer tube 16 is, as shown in FIG. 1, a direction perpendicular to the flow direction (x direction) of air which is a heat exchange fluid and the arrangement direction (y direction) of a large number of fins 12.
- a plurality of fins 14 arranged in the (z direction) are sequentially penetrated and in a meandering form, whereby fins for an air conditioner having a substantially flat plate shape as a whole are obtained.
- the and tube heat exchanger 10 is configured.
- the fin-and-tube type heat exchanger 10 shown in FIG. 1 is arranged in the y direction in a configuration in which the fins 12 shown in FIG. 2 are rotated by 90 ° to form a fin group 14. That is, FIG. 1 and FIG.
- FIG. 2 With regard to the plurality of fins 12 constituting the fin group 14, the first and second cut and raised portions 22 and 24 and the edge portions are only provided to the fins 12 disposed on the most front side in the figure.
- the convex deformation portion 26 and the like are drawn, in order to make the drawing easy to understand, those depictions in the overlapping fins 12 are only omitted, and it is also in the other than the foremost fins 12, It is needless to say that the cut and raised portions 22 (24), the edge convex deformation portions 26 and the like are provided.
- each fin 12 constituting the fin group 14 is divided by the center line C.
- First and second slits provided in one of the two slit-like first and second slit-and-raised portions 22 and 24 extending in the z-direction respectively provided in the left and right two regions on the fin 12
- the cut lines 30, 30 defining the width of the cut and raised portions 22, 22; 24, 24 are not positioned on a straight line in the z direction. And, Therefore, even when a large external force is applied to the fins 12, the risk of the fins being bent at the formation sites of the first and second cut and raised portions 22, 24 is effectively eliminated. Or will be reduced.
- a plurality of fins 12 constituting one fin group 14 is penetrated by one heat transfer tube 16 to form a plurality of fin groups constituting the heat exchanger 10.
- the independent form of the heat exchanger 14 can advantageously enhance the fin efficiency in heat exchange, and advantageously block the heat conduction (conduction) between adjacent heat transfer tubes 16 through the fins. Therefore, the heat exchange performance of the heat exchanger 10 can be effectively improved. And, by improving the heat exchange performance, it is possible to realize the compactness of the heat exchanger 10, and it can be suitably adopted also as a heat exchanger in the indoor unit of the compacted air conditioner. Become.
- the first and second slit-like raised portions 22 and 24 in a total of eight sizes of two types are disposed on the surface of the fin 12, but The width, length, number, and shape of the raised portions 22 and 24 are appropriately determined in accordance with the size and heat transfer performance of the fin 12 to be obtained.
- the amount of deviation in the pair of first cut-and-raised parts 22 and 22 and the amount of deviation in the pair of second cut-and-raised parts 24 and 24 may be the same or different. Even if it is said, it does not matter at all. That is, the center line passing through the insertion hole 20: the cutting lines 30 of the first and second cut and raised portions 22 and 24 present on both sides in the z direction on both sides in the z direction on both sides in the z direction It is good if it is not located in
- both of the pair of cut-and-raised portions 22 and 24 are cut lines 30 that are not positioned on a straight line in the z direction on both left and right sides of the center line: C.
- at least one of the pair of the two raised portions 22 and 24 is configured to have the structure such that the occurrence of bending of the fins 12 can be advantageously avoided.
- the cutting lines 30 of the first cut-and-raised portions 22 and 22 on both sides in the x direction located in the region where there is no straddling the insertion hole 20 are offset in the x direction on both sides of the center line C
- the cutting lines 30 of the two pairs of the second cut-and-raised portions 24, 24 on both sides of the insertion hole 20 are not deviated in the x direction (they are positioned in a straight line) No matter what, even if configured Not support.
- the insertion portion specifically, the fin collar 32 and the flared portion 34 exist between the left and right second cut and raised portions 24, 24, It is because a large resistance can be exhibited.
- a plate material made of pure aluminum (JIS A1050-H24) having a thickness of 0.08 mm in order to manufacture a fin used to construct a fin-and-tube type heat exchanger for an air conditioner according to the present invention Were prepared and subjected to a predetermined pressing process to produce rectangular fins (50) as shown in FIG. 7 (a).
- the x-direction in which the heat exchange fluid flows is the short side: 20 mm
- the z-direction perpendicular to the x-direction is the long side: 24 mm.
- FIG. 7 An edge convex deformation portion (56) exhibiting a triangular cross-sectional shape as shown in FIG. 1 is formed over the entire length in the z direction with a dimension of width: 1.4 mm, height: 0.5 mm.
- a portion near the center of the fin (50) than the edge convex deformation (56) has a predetermined height from the fin surface
- Two slit-like raised portions (52, 52 ') are formed, each rising in the direction of H and extending parallel to the z direction.
- one (52) of the two cut-and-raised portions has a predetermined width in the z direction from a location 2.5 mm away from one side in the x direction and 1 mm away from one side in the z direction It is formed to extend with (W) and length (L).
- another cut and raised part (52 ') is added to the same 2.5 mm as the first cut and raised part (52) from one side in the x direction, and the amount of deviation (displacement amount): d
- the position in the z direction is a predetermined width (W) and length in the z direction from a position 1 mm away from the side opposite to the side on which the first cut and raised portion (52) is formed. (L) is formed to extend.
- the two cut and raised portions (52, 52 ') are parallel to the x direction passing through the heat transfer tube insertion hole equivalent portion (54) at the center portion of the fin (50): center line C It was formed to be located at
- the dimensions of the two slit-like cut and raised portions (52, 52 ') are length (L): 8.5 mm, width (W): 1.6 mm, height (H): 0.8 mm I was told.
- Each test fin prepared in this manner was set in a test apparatus as shown in FIG. 8, and a weight drop test was performed to check whether or not the fins were bent. That is, the end in the x direction on the side where the cut and raised portion (52, 52 ') and the edge convex deformation portion (56) are formed protrudes by 5.9 mm from the fixing jig. After fixing so as to make it possible, a 1 gf weight is allowed to freely fall from a height of 100 mm and made to collide with the center of the x direction end of the test fin and cut and raised (slit) (52, 52 ') It was investigated whether or not bending occurred in the fins.
- the number of tests is 10 times for each test fin, and the number of times the bending occurs in the 10 times of the tests and the one where the bending of the fins occurs 3 times or more is evaluated: x, 2 or less
- count of bending of 4 was evaluated: It is collectively shown in following Table 1 as (circle) and the result.
- the offset amount (d) of the cut-and-raised part (52, 52 ') is within the range according to the present invention. 3 to No. It was confirmed that in the test fins of No. 9, bending of the fins was difficult to occur.
- Example 2- A plate material made of pure aluminum (JIS A1050-H24) having a thickness of 0.10 mm is prepared and subjected to a predetermined pressing process, and as shown in FIG. 7A, the short side: 20 mm, the long side: 24 mm Rectangular fins (50) were produced.
- two slit-like cut-and-raised portions (52, 52 ') and an edge-convex-shaped deformed portion (56) are formed in this fin (50), and cut-and-raised there
- the part (52, 52 ') has a length (L) of 9 mm, a width (W) of 2 mm and a height (H) of 0.8 mm, and the arrangement position thereof is one cut and raised part (52)
- the other cut-and-raised part (52 ') is the first cut-and-raised part as in Example 1 as a place separated 1.9 mm from one side in the x direction and 1 mm from one side in the z direction.
- the edge convex deformation (56) has a width of 1.4 mm and a height from a position 0.2 mm away from the end on which the two cut and raised portions (52, 52 ') are formed. : Formed to be 0.5 mm.
- the offset amount (d) of the cut-and-raised part (52, 52 ') is within the range according to the present invention. 14 to No. It was confirmed that bending of the fins was difficult to occur with the 20 test fins.
Abstract
Description
先ず、本発明に従う空気調和機用フィン・アンド・チューブ型熱交換器を構成するために用いられるフィンを製作するために、板厚:0.08mmの純アルミニウム(JIS A1050-H24)製の板材を準備し、それに所定のプレス加工を施して、図7(a)に示されるような長方形のフィン(50)を作製した。なお、かかるフィン(50)の外形寸法は、熱交換流体の流通する方向であるx方向を短辺:20mmとする一方、x方向に直角なz方向を長辺:24mmとした。
板厚:0.10mmの純アルミニウム(JIS A1050-H24)製の板材を準備し、それに所定のプレス加工を施して、図7(a)に示される如き、短辺:20mm、長辺:24mmの長方形のフィン(50)を作製した。なお、このフィン(50)には、実施例1と同様にして、2つのスリット状の切り起こし部(52,52’)と縁部凸状変形部(56)が形成され、そこで、切り起こし部(52,52’)は、長さ(L):9mm、幅(W):2mm、高さ(H):0.8mmとされ、その配設位置は、一方の切り起こし部(52)が、x方向の一方の辺から1.9mm、z方向の一方の辺から1mm離れた箇所として、他方の切り起こし部(52’)は、実施例1と同様に、一つ目の切り起こし部(52)から所定の距離(d)だけ偏位するようにされた。また、縁部凸状変形部(56)は、2つの切り起こし部(52,52’)が形成されている側の端部から0.2mm離れた位置から、幅:1.4mm、高さ:0.5mmとなるように形成された。
12 フィン
14 フィン群
16 伝熱管
18 曲げ部
20 挿通孔
22 第一の切り起こし部
24 第二の切り起こし部
26 縁部凸状変形部
28 中央凸状変形部
30 切込線
Claims (12)
- 熱交換流体の流通するx方向に対して直角なy方向において互いに平行に且つ一定距離を隔てて配される、四角形状を呈する多数枚のフィンからなるフィン群の複数が、それらx方向及びy方向に対して直角なz方向に互いに一定距離を隔てて一列に配列され、1枚のフィンの中央部位に設けられた挿通部に1本の伝熱管が挿通されて取り付けられてなる形態において、それらフィン群を順次貫通するように、該伝熱管が蛇行形態において配されてなる構造のフィン・アンド・チューブ型熱交換器において、
前記フィン群を構成する各フィンには、前記伝熱管の挿通部を通る前記x方向に平行な方向の中心線にて左右に分割される二つの領域にそれぞれ対応して位置するように、前記z方向に互いに平行に延びる細幅のスリット状の第一及び第二の切り起こし部の対が、それぞれ前記x方向に所定距離を隔てて設けられ、且つ該第一の切り起こし部の対が該中心線の両側において前記挿通部を挟むことのない領域に対応して配置され、また該第二の切り起こし部の対が該中心線の両側において前記挿通部を挟む領域に対応して配置されてなると共に、それら第一及び第二の切り起こし部のうち、少なくとも、該中心線を挟んでその両側の領域に対応して位置する第一の切り起こし部の対が、それらの幅を規定する切込線が前記z方向において一直線上に位置しないように形成されて、前記x方向に偏位して配設されていることを特徴とする空気調和機用フィン・アンド・チューブ型熱交換器。 - 前記中心線を挟んでその両側の領域に対応して位置する第一の切り起こし部の対が、同一の幅を有して形成されていると共に、かかる幅の5%~95%の距離だけ前記x方向に偏位せしめられていることを特徴とする請求項1に記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記第一及び第二の切り起こし部が、それぞれの幅を規定する切込線の2本にて挟まれた領域をフィン表面より立ち上がるように成形して得られた台形形状を有していることを特徴とする請求項1又は請求項2に記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記中心線を挟んでその両側の領域に対応して位置する第二の切り起こし部の対が、それらの幅を規定する切込線が前記z方向において一直線上に位置しないように形成されて、前記x方向に偏位して配設されていることを特徴とする請求項1乃至請求項3の何れか一つに記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記第一の切り起こし部が、前記z方向において、前記第二の切り起こし部よりも長い長さをもって形成されていることを特徴とする請求項1乃至請求項4の何れか一つに記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記フィンが、前記中心線にて分割された両側の領域において、それぞれ、二つの第一の切り起こし部と二つの第二の切り起こし部とを有し、且つそれぞれの領域において、該二つの第一の切り起こし部が前記x方向における両端側にそれぞれ位置するように配設される一方、該二つの第一の切り起こし部の間に位置するように、前記二つの第二の切り起こし部が配設されていることを特徴とする請求項1乃至請求項5の何れか一つに記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記伝熱管の挿通部が、前記フィンの中央部位に形成された貫通孔と、該貫通孔の周縁部に立設された所定高さのカラー部とから構成されていることを特徴とする請求項1乃至請求項6の何れか一つに記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記カラー部が、その先端に、外方に向かうに従って開口径が漸次大きくされたフレアー部を有していることを特徴とする請求項7に記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記フィンの前記x方向における両端部位に、前記第一及び第二の切り起こし部よりも高さの低い縁部凸状変形部が、前記z方向における全長に亘って設けられていることを特徴とする請求項1乃至請求項8の何れか一つに記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記縁部凸状変形部が、三角形断面形状において前記z方向に延びるように配設されていることを特徴とする請求項9に記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記フィンの前記z方向における中央部位に、前記第一及び第二の切り起こし部よりも高さの低い中央凸状変形部が、前記挿通部に達しない長さにおいて前記x方向に設けられていることを特徴とする請求項1乃至請求項10の何れか一つに記載の空気調和機用フィン・アンド・チューブ型熱交換器。
- 前記中央凸状変形部が、三角形断面形状において前記x方向に延びるように配設されていることを特徴とする請求項11に記載の空気調和機用フィン・アンド・チューブ型熱交換器。
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JP2014538300A JP6122860B2 (ja) | 2012-09-26 | 2013-08-29 | 空気調和機用フィン・アンド・チューブ型熱交換器 |
KR1020157009951A KR20150062165A (ko) | 2012-09-26 | 2013-08-29 | 공기 조화기용 핀 앤드 튜브형 열 교환기 |
CN201380050468.5A CN104685313B (zh) | 2012-09-26 | 2013-08-29 | 空调机用翅片管式换热器 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104879957A (zh) * | 2015-06-03 | 2015-09-02 | 河南新科隆电器有限公司 | 一种风冷翅片蒸发器 |
WO2019159520A1 (ja) * | 2018-02-13 | 2019-08-22 | 株式会社Uacj | 冷凍冷蔵庫用熱交換器 |
JPWO2018147125A1 (ja) * | 2017-02-09 | 2019-11-07 | ダイキン工業株式会社 | フィンおよび熱交換器 |
EP3702712A4 (en) * | 2017-12-22 | 2020-12-09 | Shanghai Power Equipment Research Institute Co., Ltd. | OUTER FINED HEAT EXCHANGER TUBE AND METHOD OF USING THEREOF |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106500185A (zh) * | 2016-12-09 | 2017-03-15 | 美的集团武汉制冷设备有限公司 | 空调室内机换热器和空调室内机 |
CN106679484A (zh) * | 2017-03-02 | 2017-05-17 | 珠海格力电器股份有限公司 | 翅片、换热器以及空调 |
DE102018117457A1 (de) * | 2018-07-19 | 2020-01-23 | Kelvion Machine Cooling Systems Gmbh | Wärmetauscher |
CN111947486B (zh) * | 2019-05-17 | 2021-10-15 | 广东美的白色家电技术创新中心有限公司 | 换热器以及电器设备 |
CN110726322A (zh) * | 2019-11-19 | 2020-01-24 | 广东美的暖通设备有限公司 | 用于换热器的散热翅片、散热组件和制冷设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6237692A (ja) * | 1985-08-12 | 1987-02-18 | Hitachi Ltd | 熱交換器 |
JPH1054683A (ja) * | 1996-08-08 | 1998-02-24 | Hitachi Ltd | 熱交換器 |
JP2000171187A (ja) * | 1998-12-04 | 2000-06-23 | Daikin Ind Ltd | 空調用熱交換器の伝熱フィン |
JP2003240475A (ja) * | 2002-02-20 | 2003-08-27 | Fujitsu General Ltd | 熱交換器 |
JP2010223578A (ja) * | 2009-03-19 | 2010-10-07 | Shanghai Jiao Tong Univ | 熱交換器用フィン及び熱交換器 |
JP2012017970A (ja) * | 2010-06-09 | 2012-01-26 | Sumitomo Light Metal Ind Ltd | クロスフィンチューブ型熱交換器用アルミニウムフィン及びそれを用いたクロスフィンチューブ型熱交換器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0128678B1 (ko) * | 1994-07-21 | 1998-04-04 | 김광호 | 공기조화기의 열교환기 |
CN1095065C (zh) * | 1994-12-27 | 2002-11-27 | Lg电子株式会社 | 热交换器的结构 |
JP3292077B2 (ja) * | 1997-01-30 | 2002-06-17 | 株式会社日立製作所 | 熱交換器及び空気調和機 |
JPH10292994A (ja) * | 1997-04-18 | 1998-11-04 | Hitachi Ltd | 冷蔵庫用熱交換器 |
WO2006055916A2 (en) * | 2004-11-18 | 2006-05-26 | Allan Stikeleather | Heat exchanger tube and method of making |
-
2013
- 2013-08-29 KR KR1020157009951A patent/KR20150062165A/ko not_active Application Discontinuation
- 2013-08-29 JP JP2014538300A patent/JP6122860B2/ja active Active
- 2013-08-29 WO PCT/JP2013/073099 patent/WO2014050418A1/ja active Application Filing
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6237692A (ja) * | 1985-08-12 | 1987-02-18 | Hitachi Ltd | 熱交換器 |
JPH1054683A (ja) * | 1996-08-08 | 1998-02-24 | Hitachi Ltd | 熱交換器 |
JP2000171187A (ja) * | 1998-12-04 | 2000-06-23 | Daikin Ind Ltd | 空調用熱交換器の伝熱フィン |
JP2003240475A (ja) * | 2002-02-20 | 2003-08-27 | Fujitsu General Ltd | 熱交換器 |
JP2010223578A (ja) * | 2009-03-19 | 2010-10-07 | Shanghai Jiao Tong Univ | 熱交換器用フィン及び熱交換器 |
JP2012017970A (ja) * | 2010-06-09 | 2012-01-26 | Sumitomo Light Metal Ind Ltd | クロスフィンチューブ型熱交換器用アルミニウムフィン及びそれを用いたクロスフィンチューブ型熱交換器 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104879957A (zh) * | 2015-06-03 | 2015-09-02 | 河南新科隆电器有限公司 | 一种风冷翅片蒸发器 |
JPWO2018147125A1 (ja) * | 2017-02-09 | 2019-11-07 | ダイキン工業株式会社 | フィンおよび熱交換器 |
EP3702712A4 (en) * | 2017-12-22 | 2020-12-09 | Shanghai Power Equipment Research Institute Co., Ltd. | OUTER FINED HEAT EXCHANGER TUBE AND METHOD OF USING THEREOF |
US11118847B2 (en) | 2017-12-22 | 2021-09-14 | Shanghai Power Equipment Research Institute Co., Ltd. | Finned heat exchanger tube |
JP7011079B2 (ja) | 2017-12-22 | 2022-02-10 | シャンハイ パワー エクイプメント リサーチ インスティテュート カンパニー,リミテッド | アウターフィン付き熱交換チューブ及びその使用方法 |
WO2019159520A1 (ja) * | 2018-02-13 | 2019-08-22 | 株式会社Uacj | 冷凍冷蔵庫用熱交換器 |
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CN104685313A (zh) | 2015-06-03 |
CN104685313B (zh) | 2017-03-08 |
JP6122860B2 (ja) | 2017-04-26 |
JPWO2014050418A1 (ja) | 2016-08-22 |
KR20150062165A (ko) | 2015-06-05 |
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