WO2013094162A1 - Finned heat exchanger - Google Patents
Finned heat exchanger Download PDFInfo
- Publication number
- WO2013094162A1 WO2013094162A1 PCT/JP2012/007985 JP2012007985W WO2013094162A1 WO 2013094162 A1 WO2013094162 A1 WO 2013094162A1 JP 2012007985 W JP2012007985 W JP 2012007985W WO 2013094162 A1 WO2013094162 A1 WO 2013094162A1
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- WIPO (PCT)
- Prior art keywords
- heat exchanger
- fin
- heat transfer
- fins
- fin collar
- 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
- F28F1/32—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 having portions engaging further tubular elements
- F28F1/325—Fins with openings
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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
- F24F1/0067—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
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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
- 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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
Definitions
- the present invention relates to a heat exchanger with fins mounted on an indoor unit of an air conditioner.
- the casing 101 has one or more suction ports such as a front suction port 102a and an upper suction port 102b, and a plurality of outlets divided on the lower surface.
- One or more outlets such as 103 are provided.
- a once-through fan 105 and finned heat exchangers 104A, 104B, 104C, 104D are accommodated (for example, see Patent Document 1).
- the finned heat exchanger 104 is disposed on the front side in the casing 101.
- the finned heat exchanger 104 includes two front side heat exchangers 104A and 104A that are bent near the center in the vertical direction, a back side heat exchanger 104B that is disposed on the back side in the casing 101,
- the auxiliary heat exchangers 104C and 104D are attached to the front surfaces of the front-side heat exchangers 104A and 104A divided into two.
- the front side heat exchanger 104A and the back side heat exchanger 104B are arranged in a form surrounding the once-through fan 105 from the windward side.
- the conventional air conditioner is configured such that the finned heat exchangers 104A, 104B, 104C, and 104D are accommodated in a limited space in the casing 101 as much as possible.
- the auxiliary heat exchangers 104C and 104D attached to the front surface of the front side heat exchanger 104A are provided to improve the heat exchange capability, and are the main heat exchangers.
- 104A and the back side heat exchanger 104B are manufactured in separate steps, and are additionally connected and attached to the main front side heat exchanger 104A and the back side heat exchanger 104B. In the heat exchanger shown in FIG. 2, the case where it is additionally connected to the main front surface side heat exchanger 104A is shown.
- the spacer 106 is disposed at the bent portion of the front side heat exchanger 104A shown in FIG. It is installed.
- Patent Document 1 discloses a configuration in which a front-side heat exchanger is formed in an arc shape.
- the indoor unit of an air conditioner in which the shape of the fin 201A of the front side heat exchanger 201 is formed in an arc shape so as to surround a part of the peripheral surface of the once-through fan 203. Is disclosed.
- the spacer 106 shown in FIG. 2 is not necessary, and no waste material is generated in a portion corresponding to the spacer 106 in the material of the fin 201A at the time of manufacture. There are advantages that can be reduced.
- the spacer 106 since the spacer 106 is not provided, the area of the fin 201A is increased by an area corresponding to the location where the spacer 106 is provided, and the heat exchange capability is improved. .
- the ventilation resistance at the places where the heat transfer tubes are arranged in three rows is increased, and the wind speed distribution of the heat exchanger is not uniform, which may cause a decrease in performance.
- the generation of singular noise proportional to the product of the number of blades of the blower and the number of rotations in use is caused by the non-uniform wind speed distribution in the vicinity of the once-through blower. There is a risk of generating loud noise.
- Patent Document 3 discloses a configuration in which a cut-and-raised portion is formed in a region where the wind speed increases, and the shape of the cut-and-raised surface is inclined with respect to the main flow of gas flowing into the fin.
- the raised parts disclosed in Patent Document 3 are arranged in a plurality of rows in the fins to achieve uniform wind speed distribution.
- FIG. 4 is a cross-sectional view showing a configuration of a conventional heat exchanger disclosed in Patent Document 3
- FIGS. 5 and 6 are views showing a cut-and-raised portion 322 disclosed in Patent Document 3.
- FIG. 5 and 6, (a) is a perspective view showing the cut-and-raised portion 322, and (b) is a cross-sectional view showing two fins stacked.
- the configuration of the conventional heat exchanger has a problem that depending on the shape of the heat exchanger, the wind speed distribution cannot be adjusted and the singular sound cannot be completely erased. Furthermore, in the case where a cut and raised portion is provided so as to have an inclination with respect to the main flow of the gas that flows into the fin and the wind that cuts off the wind, the air heat transfer coefficient at the corresponding location is lowered and the heat exchange capacity is lowered. It had the problem of end.
- the present invention has been made in view of the above-described problems of the prior art. Even when the wind speed distribution is large and non-uniform, the wind speed distribution can be made substantially uniform and has good heat exchange performance. And it aims at providing the heat exchanger with a fin which can suppress generation
- a finned heat exchanger comprises: A heat transfer tube in which the refrigerant flows; A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted; In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A second fin collar that is not inserted is provided.
- the finned heat exchanger according to the present invention configured as described above can achieve uniform wind speed distribution even when the wind speed distribution is large and non-uniform, and has good heat exchange performance. It is possible to suppress the generation of abnormal noise due to the rotation of the blower.
- a heat exchanger since a heat exchanger is close to a once-through fan, the wind speed passing between the stacked fins is large, and in the stacked fins, the arrangement of the heat transfer tubes is sparse, so the wind speed passing between the fins is large. Become.
- the second fin collar into which the heat transfer tubes are not inserted, the speed of the air passing through the fins of the heat exchanger is reduced, and the wind speed distribution of the heat exchanger Can be made uniform.
- the air speed distribution of the heat exchanger is made uniform, exhibits good heat exchange performance, suppresses the generation of abnormal noise due to the rotation of the blower, and improves the heat exchange performance. It is possible to provide a finned heat exchanger capable of
- the finned heat exchanger includes a heat transfer tube in which a refrigerant flows, A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted; In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A second fin collar that is not inserted is provided.
- the air wind speed is larger in the region. It becomes possible to make the wind speed of the whole heat exchanger substantially uniform. Moreover, in the heat exchanger with fins of the first aspect, it is possible to suppress the generation of singular sounds due to the rotation of the blower and to maximize the capability of the heat exchanger.
- the diameter of the second fin collar in the first aspect is the same as the diameter of the first fin collar, or the diameter of the first fin collar is the same. You may form smaller than a diameter.
- the finned heat exchanger according to the second aspect of the present invention configured as described above it is possible to configure the fin collar that can be provided on the stacked fins in a desired configuration and a desired shape, It becomes possible to set the wind speed of the air passing through the region to a desired speed, and the wind speed of the entire heat exchanger can be made substantially uniform.
- the second fin collar in the first aspect or the second aspect is disposed in a region surrounded by the first fin collar. You may comprise.
- the heat exchanger with fins of the third aspect according to the present invention configured as described above can exhibit the maximum heat exchange capability with the heat transfer tubes in the laminated fins.
- the plurality of first fin collars in any one of the first to third aspects is substantially in the gas flow direction. You may comprise so that the said 2nd fin color may not be provided continuously in the row
- the heat exchanger with fins of the fourth aspect according to the present invention configured as described above can maximize the heat exchange capability with the heat transfer tubes in the laminated fins.
- the plurality of first fin collars in any one of the first to fourth aspects is substantially in the gas flow direction.
- the second fin collar may not be provided in the windward leading edge side row and the leeward trailing edge side row of the fin.
- a casing having a gas inlet and an outlet, A heat exchanger housed in the casing and performing heat exchange between the gas flowing in from the suction port and the refrigerant flowing through the heat transfer tube; A recirculation blower that is housed in the casing and blows gas to the heat exchanger, and is disposed on the leeward side of the heat exchanger with respect to the flow direction of the gas,
- the heat exchanger is configured with the finned heat exchanger according to any one of the first to fifth aspects, and the stacked fins are bent so as to surround the reflux fan. A bend is formed, The second fin collar is provided at the bent portion of the heat exchanger.
- the air conditioner according to the sixth aspect of the present invention configured as described above, there is no region where the arrangement of the heat transfer tubes is sparse in the stacked fins, and as a result, the air wind speed is large depending on the region. Is suppressed, and the wind speed of the entire heat exchanger can be made substantially uniform. Moreover, in the air conditioner of the sixth aspect, it is possible to suppress the generation of singular noise due to the rotation of the blower and to maximize the heat exchange capability.
- the second fin collar in the sixth aspect is further provided in the heat exchanger vertically above the reflux fan. Also good.
- the air velocity distribution of the heat exchanger can be made uniform, and the heat exchanger capacity can be maximized. .
- the finned heat exchanger of the present invention is not limited to the configuration of the heat exchanger described in the following embodiment, but is equivalent to the technical idea described in the following embodiment.
- the heat exchanger comprised based on is included.
- FIG. 1 is a longitudinal sectional view of an indoor unit on which the finned heat exchanger of Embodiment 1 is mounted.
- the casing 2 of the indoor unit 1 of this air conditioner is provided with suction ports 3a and 3b on the front and upper surfaces, and an outlet 4 on the lower surface.
- the schematic flow direction is indicated by an arrow.
- a once-through fan 5 and a heat exchanger 10 with fins are accommodated.
- the finned heat exchanger 10 is arranged on the front side in the casing 2 and is arranged on the back side in the casing 2 and the front side heat exchanger 20 formed in a convex shape so as to protrude to the front side. It is comprised from the back side heat exchanger 40. Moreover, the front side heat exchanger 20 and the back side heat exchanger 40 are arrange
- a plurality of strip-like fins 21 are stacked in parallel with a predetermined interval, and substantially parallel to the main flow direction of the gas flowing in the casing 2. Has been placed. For this reason, the stacked fins 21 are configured such that the gas flows excessively through a gap space at a predetermined interval between the fins.
- the heat transfer tube 50 is configured so that a refrigerant that is a heat conducting member flows.
- the front-side heat exchanger 20 has a first area A in the vicinity of the blower having a curved portion that is curved so as to protrude with respect to the gas inflow direction, that is, the lower side in the first embodiment.
- the side region A has a straight portion and is roughly divided into two regions, ie, a second region B that is separated from the cross-flow blower 5 forward and upward, that is, an upper region B in the first embodiment.
- the second region B far from the once-through fan 5 that is, the upper region B of the straight portion between the windward leading edge 20 a and the leeward trailing edge 20 b of the fin 21
- the second heat transfer tubes 50 (50b) penetrating the plurality of fins 21 are disposed so as to be substantially orthogonal to the main gas flow direction.
- a plurality of strip-shaped fins 21 are laminated in parallel with a predetermined interval, and are arranged substantially parallel to the main flow direction of the gas flowing in the casing 2. .
- the back side heat exchanger 40 is also configured such that the gas flows excessively in the gap space with a predetermined interval between the fins.
- the rear heat exchanger 40 is also provided with a third heat transfer tube 50 (50c) fixed so as to penetrate the plurality of fins 21 and conduct heat.
- the 1st heat exchanger tube 50a and the 2nd heat exchanger tube 50b in the front side heat exchanger 20 and the 3rd heat exchanger tube 50c in the back side heat exchanger 40 are formed linearly, and each edge part is formed.
- a meandering refrigerant passage is formed by being connected by a U-shaped tube (not shown) bent into a hairpin shape.
- the heat transfer tube 50 mounted so as to penetrate the lower region A in the front heat exchanger 20 has one or more rows arranged in a direction substantially perpendicular to the main flow direction of gas. They are arranged in three rows.
- the heat transfer tubes 50 are arranged side by side in a direction substantially orthogonal to the main flow direction of gas. The provided rows are arranged in two to four rows.
- the diameter of the heat transfer tube 50 mounted so as to penetrate the fins 21 is composed of two or more types.
- the diameter of the heat transfer tube 50 inserted into the first region A on the side close to the once-through fan 5 of the front-side heat exchanger 20, that is, the lower region A of the front-side heat exchanger 20, is the front-side heat exchanger. 20 is set to be larger than the diameter of the heat transfer tube 50 inserted into the second region B far from the once-through fan 5, that is, the upper region B of the front-side heat exchanger 20.
- the diameter of the heat transfer tube 50 inserted into the lower region A of the front side heat exchanger 20 is set larger than the diameter of the heat transfer tube 50 inserted into the back side heat exchanger 40.
- the diameter of the heat transfer tube 50 on the windward leading edge side is set larger than the diameter of the heat transfer tube 50 on the leeward trailing edge side.
- the diameter of the heat transfer tube 50 on the leeward side near the suction port 3b is set larger than the diameter of the heat transfer tube 50 on the leeward side near the once-through fan.
- the heat transfer tubes 50 constituting the refrigerant passages meandering in a hairpin shape are even for the fins 21 in the front-side heat exchanger 20 and the rear-side heat exchanger 40. It is fixed so as to be able to transfer heat through the part.
- the air sucked from the front suction port 3a or the upper suction port 3b is exchanged by the front side. It passes through the heat exchanger 20 or the back side heat exchanger 40, passes through the once-through fan 5, and is blown out from the outlet 4.
- the heat transfer tubes 50 that constitute the refrigerant passages meandering in a hairpin shape are provided on the fins 21 in the lower region A adjacent to the cross-flow fan 5 in the front-side heat exchanger 20.
- An even number of first fin collars 23 to be inserted are provided.
- a second fin collar 24 into which the heat transfer tube 50 is not inserted is provided on the lower side (bent portion) of the fin 21, separately from the first fin collar 23 in which the heat transfer tube 50 is inserted in the region C surrounded by the first fin collar 23 in which the heat transfer tube 50 is inserted.
- a second fin collar 24 into which the heat transfer tube 50 is not inserted is provided on the lower side (bent portion) of the fin 21, separately from the first fin collar 23 in which the heat transfer tube 50 is inserted in the region C surrounded by the first fin collar 23 in which the heat transfer tube 50 is inserted.
- a second fin collar 24 into which the heat transfer tube 50 is not inserted has a diameter smaller than the diameter of the first fin collar 23 into which the heat transfer
- the second fin collars 24 are not continuously provided, It is provided between the fin collars 23.
- the plurality of first fin collars 23 are arranged in a plurality of rows side by side along a direction substantially orthogonal to the gas flow direction, and the second fin collar 24 is located at the most upwind front edge 20 a of the fin 21. It is not provided in the row at the closest position and the row at the position closest to the leeward trailing edge 20b.
- the second fin collar 24 is disposed so as to be surrounded by the plurality of first fin collars 23.
- the second fin collar 24 into which the heat transfer tube 50 is not inserted is provided in the lower region A adjacent to the cross-flow fan 5 in the front-side heat exchanger 20.
- the present invention is not limited to such a configuration.
- the second fin collar 24 may be provided vertically above the cross-flow fan 5 in the rear heat exchanger 40, and the second fin collar 24 may be provided. 24 is arranged at a desired position in consideration of the heat transfer effect and ventilation resistance. As described above, even when the second fin collar 24 is provided in the back surface side heat exchanger 40, the second fin collar 24 is disposed in a region surrounded by the fin collar into which the heat transfer tube 50 is inserted.
- the second fin collars 24 are It is the structure which is not provided continuously.
- the fin collar by which the heat exchanger tube 50 with a large diameter is inserted. Is arranged on the front edge side which is the suction port side, and a fin collar into which the heat transfer tube 50 having a small diameter is inserted is provided on the rear edge side which is the cross-flow fan side.
- Embodiment 1 although it is the structure which provided only the 2nd fin collar 24 in which the heat exchanger tube 50 is not inserted in the fin 21, this invention is not limited to such a structure,
- the heat exchanger 10 with a fin An appropriate number is provided in consideration of the specification, configuration, shape, efficiency, and the like.
- the mounting location of the heat transfer tube 50 and the first fin collar 23 in the lower region A of the front side heat exchanger 20 is a gas. It is arranged in one or three places along the main flow direction (direction toward the once-through fan). Further, the upper region B of the front side heat exchanger 20 and the mounting locations of the heat transfer tubes 50 and the first fin collars 23 of the rear side heat exchanger 40 are 2 along the main flow direction of gas (the direction toward the cross-flow fan). It is arranged side by side or 4 places.
- the plurality of first heat transfer tubes 50 are inserted in the lower region A of the front heat exchanger 20 that is close to the once-through fan 5 and tends to increase the wind speed.
- a second fin collar 24 into which the heat transfer tube 50 is not inserted is provided in a region C surrounded by the fin collar 23. In this way, the second fin collar 24 having a diameter smaller than the diameter of the first fin collar 23 into which the heat transfer tube 50 is inserted is close to the once-through fan 5, and the lower region A of the front heat exchanger 20 where the wind speed tends to increase.
- the diameter of the second fin collar 24 into which the heat transfer tube 50 is not inserted is set to the first heat transfer tube 50 arranged around the second fin collar 24. It is formed smaller than the diameter of the fin collar 23.
- the diameter of the second fin collar 24 is that of the fin collar (third fin collar 25) having a small diameter provided in the upper region B of the front side heat exchanger 20 and the heat transfer tube 50 in the rear side heat exchanger 40.
- the diameter that is not inserted is the same as the diameter of the small fin collar (third fin collar 25).
- the processing tool of the second fin collar 24 in which the heat transfer tube 50 is not inserted is the same as the third fin collar 25 having the same diameter in the fin collar into which the heat transfer tube 50 is inserted, for example, during maintenance of the fin press mold.
- a processing tool can be used. For this reason, it is easy to handle maintenance, and there are advantages in terms of reduction in time and cost required for maintenance.
- the present invention is not limited to such a configuration, and the diameter of the second fin collar 24 may be the same as the diameter of the first fin collar 23 in consideration of the heat transfer effect and the ventilation resistance. The desired diameter is determined.
- the heat transfer tubes provided in at least one of the front-side heat exchanger and the rear-side heat exchanger have two or more types of diameters.
- the number of the first fin collars to be inserted is an even number for each diameter of the heat transfer tubes into which the heat transfer tubes are inserted.
- the second fin in which the heat transfer tube is not inserted separately from the first fin collar in which the heat transfer tube is inserted in a region surrounded by the first fin collar in which the heat transfer tube other than the minimum diameter is inserted.
- the color is arranged.
- the heat exchanger has an appropriate resistance to air blowing, and the wind speed of the finned heat exchanger is increased.
- the distribution can be made substantially uniform and the heat exchange performance can be improved.
- the finned heat exchanger of the present invention suppresses the generation of noise due to the rotation of the blower by realizing uniform wind speed, and has good heat exchange performance, so that it is small in size as well as air conditioning equipment. It can be applied to applications such as heat exchange units such as air cleaners, dehumidifiers, and washer / dryers that employ a heat pump drying method.
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- Physics & Mathematics (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
This finned heat exchanger is provided with a heat transfer tube (50) through which a coolant is channeled in order to make the wind speed distribution of the heat exchanger substantially uniform and improve the heat exchanging performance, and stacked fins (21) provided with a plurality of first fin collars (23) into which the heat transfer tube is inserted. The first fin collars are arranged in a plurality of rows along a direction that is substantially orthogonal to the direction of gas flow, and a second fin collar (24), into which the heat transfer tube is not inserted, is provided between the first fin collars arranged in a plurality of rows.
Description
本発明は、空気調和機の室内ユニットに搭載されるフィン付き熱交換器に関するものである。
The present invention relates to a heat exchanger with fins mounted on an indoor unit of an air conditioner.
一般に空気調和機の室内ユニットにおいては、図２に示すように、ケーシング１０１には、前面の吸込み口１０２ａおよび上面の吸込み口１０２ｂなど一箇所以上の吸込み口と、下面において複数に分かれた吹出し口１０３など一箇所以上の吹出し口とが設けられている。このケーシング１０１内には貫流送風機１０５とフィン付き熱交換器１０４Ａ，１０４Ｂ，１０４Ｃ，１０４Ｄとが収納されている（例えば、特許文献１参照）。
2. In general, in an indoor unit of an air conditioner, as shown in FIG. 2, the casing 101 has one or more suction ports such as a front suction port 102a and an upper suction port 102b, and a plurality of outlets divided on the lower surface. One or more outlets such as 103 are provided. In this casing 101, a once-through fan 105 and finned heat exchangers 104A, 104B, 104C, 104D are accommodated (for example, see Patent Document 1).
このように構成された従来の空気調和機においてフィン付き熱交換器１０４は、ケーシング１０１内の前面側に配置されている。フィン付き熱交換器１０４は、上下方向の中央部近辺で折り曲げ加工された２つの前面側熱交換器１０４Ａ，１０４Ａと、ケーシング１０１内の背面側に配置された背面側熱交換器１０４Ｂと、上下２つに分かれる前面側熱交換器１０４Ａ，１０４Ａのそれぞれの前面に補助的に取り付けられた補助熱交換器１０４Ｃ，１０４Ｄとから構成されている。前面側熱交換器１０４Ａおよび背面側熱交換器１０４Ｂは、貫流送風機１０５を風上側から取り囲むような形態で配置されている。このように、従来の空気調和機は、ケーシング１０１内の限られた空間にできるだけ大きいフィン付き熱交換器１０４Ａ，１０４Ｂ，１０４Ｃ，１０４Ｄが収納されるよう構成されている。
In the conventional air conditioner configured as described above, the finned heat exchanger 104 is disposed on the front side in the casing 101. The finned heat exchanger 104 includes two front side heat exchangers 104A and 104A that are bent near the center in the vertical direction, a back side heat exchanger 104B that is disposed on the back side in the casing 101, The auxiliary heat exchangers 104C and 104D are attached to the front surfaces of the front- side heat exchangers 104A and 104A divided into two. The front side heat exchanger 104A and the back side heat exchanger 104B are arranged in a form surrounding the once-through fan 105 from the windward side. As described above, the conventional air conditioner is configured such that the finned heat exchangers 104A, 104B, 104C, and 104D are accommodated in a limited space in the casing 101 as much as possible.
なお、前面側熱交換器１０４Ａの前面に取り付けられた補助熱交換器１０４Ｃ，１０４Ｄは、熱交換能力を向上させるために設けられているものであり、主たる熱交換器である前面側熱交換器１０４Ａと背面側熱交換器１０４Ｂとは別の工程で製造した後、主たる前面側熱交換器１０４Ａや背面側熱交換器１０４Ｂに追加接続されて取り付けられる。図２に示す熱交換器においては、主たる前面側熱交換器１０４Ａに追加接続されている場合を示している。
The auxiliary heat exchangers 104C and 104D attached to the front surface of the front side heat exchanger 104A are provided to improve the heat exchange capability, and are the main heat exchangers. 104A and the back side heat exchanger 104B are manufactured in separate steps, and are additionally connected and attached to the main front side heat exchanger 104A and the back side heat exchanger 104B. In the heat exchanger shown in FIG. 2, the case where it is additionally connected to the main front surface side heat exchanger 104A is shown.
また、上下２つに分かれる前面側熱交換器１０４Ａ，１０４Ａの折り曲げ部近辺においては、単に１つの前面側熱交換器１０４Ａを折り曲げて形成して、フィンが存在しない空間がある場合には、その空間において殆ど熱交換することのない気流が熱交換器を通過してしまうおそれがある。このように、前面側熱交換器１０４Ａを通過した気流において、熱交換が行われない気流の発生を抑制するために、図２に示す前面側熱交換器１０４Ａの折り曲げ部にはスペーサ１０６が配設されている。
In addition, in the vicinity of the bent portion of the front side heat exchangers 104A and 104A divided into two upper and lower sides, if one front side heat exchanger 104A is simply formed by bending and there is a space where no fins exist, There is a risk that an air flow that hardly exchanges heat in the space passes through the heat exchanger. In this way, in order to suppress the generation of an air flow that does not undergo heat exchange in the air flow that has passed through the front side heat exchanger 104A, the spacer 106 is disposed at the bent portion of the front side heat exchanger 104A shown in FIG. It is installed.
これに対して、前面側熱交換器１０４Ａの折り曲げ加工を不要にし、スペーサ１０６を設けなくても、気流が熱交換することなく熱交換器を通過するような状態を防止する構造としては、例えば特許文献１に、前面側熱交換器を円弧状に形成した構成が開示されている。
On the other hand, as a structure that eliminates the need to bend the front side heat exchanger 104A and prevents the airflow from passing through the heat exchanger without exchanging heat without providing the spacer 106, for example, Patent Document 1 discloses a configuration in which a front-side heat exchanger is formed in an arc shape.
この特許文献１には、図３に示すように、前面側熱交換器２０１のフィン２０１Ａの形状を貫流送風機２０３の周面の一部を囲むように円弧状に形成した空気調和機の室内ユニットが開示されている。
In this patent document 1, as shown in FIG. 3, the indoor unit of an air conditioner in which the shape of the fin 201A of the front side heat exchanger 201 is formed in an arc shape so as to surround a part of the peripheral surface of the once-through fan 203. Is disclosed.
図３に示す構成によれば、図２に示したスペーサ１０６が不要になるとともに、製造時のフィン２０１Ａの材料においてスペーサ１０６に対応する箇所で廃材が生じないため、フィン２０１Ａの材料における廃材を少なくできる利点がある。また、図３に示した構成においては、スペーサ１０６が設けられていないため、スペーサ１０６が設けられた箇所に対応する領域分だけフィン２０１Ａの面積が増加し、熱交換能力が向上することになる。
According to the configuration shown in FIG. 3, the spacer 106 shown in FIG. 2 is not necessary, and no waste material is generated in a portion corresponding to the spacer 106 in the material of the fin 201A at the time of manufacture. There are advantages that can be reduced. In the configuration shown in FIG. 3, since the spacer 106 is not provided, the area of the fin 201A is increased by an area corresponding to the location where the spacer 106 is provided, and the heat exchange capability is improved. .
さらに、特許文献１に記載された熱交換器においては、背面側熱交換器２０２に外径４．０～７．０ｍｍの伝熱管を気体の主流方向に沿って３列に配置することにより、熱交換能力の向上を図っている。
Furthermore, in the heat exchanger described in Patent Document 1, by arranging heat transfer tubes having an outer diameter of 4.0 to 7.0 mm on the back side heat exchanger 202 in three rows along the main gas flow direction, The heat exchange capacity is improved.
ただし、このような構成の熱交換器では、伝熱管を３列に配置した箇所の通風抵抗が増大し、熱交換器の風速分布が不均一となり、性能の低下を招く可能性がある。さらに、図３に示した従来の熱交換器の構成においては、貫流送風機近傍の風速分布が不均一となることにより、送風機の翼の枚数と使用回転数の積に比例する特異音の発生を助長し、大きな騒音が発生する恐れがある。
However, in the heat exchanger having such a configuration, the ventilation resistance at the places where the heat transfer tubes are arranged in three rows is increased, and the wind speed distribution of the heat exchanger is not uniform, which may cause a decrease in performance. Further, in the configuration of the conventional heat exchanger shown in FIG. 3, the generation of singular noise proportional to the product of the number of blades of the blower and the number of rotations in use is caused by the non-uniform wind speed distribution in the vicinity of the once-through blower. There is a risk of generating loud noise.
この種の問題に対応するため、特許文献２に記載の熱交換器のように、貫流送風機に近接する箇所に配置されたフィンにおいて、風を遮るようにフィンの一部を切り起こして形成されたスリットを設ける構成が提案されている。また、熱交換器において風速分布の不均一を抑制するために、フィンにおける風量が多くなる領域のスリット数を風量が少なくなる領域より多く設ける構成が提案されている。
In order to cope with this type of problem, like the heat exchanger described in Patent Document 2, it is formed by cutting and raising a part of the fin so as to block the wind in the fin disposed in the vicinity of the once-through fan. A configuration in which a slit is provided has been proposed. In addition, in order to suppress the nonuniformity of the wind speed distribution in the heat exchanger, a configuration has been proposed in which the number of slits in the area where the air volume in the fin is increased is larger than the area where the air volume is reduced.
さらに、特許文献３には、風速が大きくなる領域に切り起こし部分を形成し、その切り起こしの形状がフィンに流入する気体の主流に対して傾斜する面を有する構成が開示されている。特許文献３に開示された切り起こし部分は、フィンにおいて複数列配置して、風速分布の均一化を図っている。図４は特許文献３に開示された従来の熱交換器の構成を示す断面図であり、図５と図６に特許文献３に開示された切り起こし部分３２２を示す図である。図５と図６において、（ａ）は切り起こし部分３２２を示す斜視図であり、（ｂ）は積層された２枚のフィンを示す断面図である。
Furthermore, Patent Document 3 discloses a configuration in which a cut-and-raised portion is formed in a region where the wind speed increases, and the shape of the cut-and-raised surface is inclined with respect to the main flow of gas flowing into the fin. The raised parts disclosed in Patent Document 3 are arranged in a plurality of rows in the fins to achieve uniform wind speed distribution. FIG. 4 is a cross-sectional view showing a configuration of a conventional heat exchanger disclosed in Patent Document 3, and FIGS. 5 and 6 are views showing a cut-and-raised portion 322 disclosed in Patent Document 3. FIG. 5 and 6, (a) is a perspective view showing the cut-and-raised portion 322, and (b) is a cross-sectional view showing two fins stacked.
しかしながら、前記従来の熱交換器の構成では、熱交換器の形状によっては、風速分布の調整を行いきれず、前記の特異音を消去しきれない場合が生じるという問題を有していた。さらに風を遮る切り起こしやフィンに流入する気体の主流に対し、傾斜を有するように切り起こし部分を設けた場合においては、該当箇所の空気熱伝達率が低下し、熱交換能力を低下させてしまうという問題を有していた。
However, the configuration of the conventional heat exchanger has a problem that depending on the shape of the heat exchanger, the wind speed distribution cannot be adjusted and the singular sound cannot be completely erased. Furthermore, in the case where a cut and raised portion is provided so as to have an inclination with respect to the main flow of the gas that flows into the fin and the wind that cuts off the wind, the air heat transfer coefficient at the corresponding location is lowered and the heat exchange capacity is lowered. It had the problem of end.
本発明は、従来技術の有するこのような問題点に鑑みてなされたものであり、風速分布が大きく不均一な場合においても、風速分布の略均一化を可能とし、良好な熱交換性能を有し、送風機の回転に起因する特異音の発生を抑えることが可能なフィン付き熱交換器を提供することを目的としている。
The present invention has been made in view of the above-described problems of the prior art. Even when the wind speed distribution is large and non-uniform, the wind speed distribution can be made substantially uniform and has good heat exchange performance. And it aims at providing the heat exchanger with a fin which can suppress generation | occurrence | production of the peculiar sound resulting from rotation of an air blower.
上記目的を達成するために、本発明に係るフィン付き熱交換器は、
内部を冷媒が流動する伝熱管と、
気体が通過するように積層され、前記伝熱管が挿入される複数の第１フィンカラーを有する複数のフィンと、を備え、
前記フィンにおいて、前記複数の第１フィンカラーは気体の流れ方向に対して略直交する方向に沿って並んで複数列に配設され、前記第１フィンカラーの列の中に、前記伝熱管が挿入されない第２フィンカラーが設けられている。 In order to achieve the above object, a finned heat exchanger according to the present invention comprises:
A heat transfer tube in which the refrigerant flows;
A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted;
In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A second fin collar that is not inserted is provided.
内部を冷媒が流動する伝熱管と、
気体が通過するように積層され、前記伝熱管が挿入される複数の第１フィンカラーを有する複数のフィンと、を備え、
前記フィンにおいて、前記複数の第１フィンカラーは気体の流れ方向に対して略直交する方向に沿って並んで複数列に配設され、前記第１フィンカラーの列の中に、前記伝熱管が挿入されない第２フィンカラーが設けられている。 In order to achieve the above object, a finned heat exchanger according to the present invention comprises:
A heat transfer tube in which the refrigerant flows;
A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted;
In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A second fin collar that is not inserted is provided.
上記のように構成された本発明に係るフィン付き熱交換器は、風速分布が大きく不均一な場合においても、風速分布の均一化を図ることが可能となり、良好な熱交換性能を有し、送風機の回転に起因する異音の発生を抑えることが可能となる。一般に、熱交換器は貫流送風機に近いため、積層されたフィンの間を通過する風速が大きく、また積層されたフィンにおいては伝熱管の配列が疎となるため、フィンの間を通る風速は大きくなる。しかし、本発明に係るフィン付き熱交換器においては、伝熱管が挿入されない第２フィンカラーを設けることにより、熱交換器のフィンを通過する空気の速度を低下させて、熱交換器の風速分布の均一化を図ることができる。
The finned heat exchanger according to the present invention configured as described above can achieve uniform wind speed distribution even when the wind speed distribution is large and non-uniform, and has good heat exchange performance. It is possible to suppress the generation of abnormal noise due to the rotation of the blower. In general, since a heat exchanger is close to a once-through fan, the wind speed passing between the stacked fins is large, and in the stacked fins, the arrangement of the heat transfer tubes is sparse, so the wind speed passing between the fins is large. Become. However, in the heat exchanger with fins according to the present invention, by providing the second fin collar into which the heat transfer tubes are not inserted, the speed of the air passing through the fins of the heat exchanger is reduced, and the wind speed distribution of the heat exchanger Can be made uniform.
本発明によれば、熱交換器の風速分布の均一化を実現して、良好な熱交換性能を発揮し、送風機の回転に起因する異音の発生を抑えるとともに、熱交換性能を向上させることができるフィン付き熱交換器を提供することができる。
According to the present invention, the air speed distribution of the heat exchanger is made uniform, exhibits good heat exchange performance, suppresses the generation of abnormal noise due to the rotation of the blower, and improves the heat exchange performance. It is possible to provide a finned heat exchanger capable of
本発明に係る第１の態様のフィン付き熱交換器は、内部を冷媒が流動する伝熱管と、
気体が通過するよう積層され、前記伝熱管が挿入される複数の第１フィンカラーを有する複数のフィンと、を備え、
前記フィンにおいて、前記複数の第１フィンカラーは気体の流れ方向に対して略直交する方向に沿って並んで複数列に配設され、前記第１フィンカラーの列の中に、前記伝熱管が挿入されない第２フィンカラーが設けられている。 The finned heat exchanger according to the first aspect of the present invention includes a heat transfer tube in which a refrigerant flows,
A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted;
In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A second fin collar that is not inserted is provided.
気体が通過するよう積層され、前記伝熱管が挿入される複数の第１フィンカラーを有する複数のフィンと、を備え、
前記フィンにおいて、前記複数の第１フィンカラーは気体の流れ方向に対して略直交する方向に沿って並んで複数列に配設され、前記第１フィンカラーの列の中に、前記伝熱管が挿入されない第２フィンカラーが設けられている。 The finned heat exchanger according to the first aspect of the present invention includes a heat transfer tube in which a refrigerant flows,
A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted;
In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A second fin collar that is not inserted is provided.
上記のように構成された本発明に係る第１の態様のフィン付き熱交換器は、積層されたフィンにおいて伝熱管の配列が疎となる領域がなくなり、その結果、空気の風速が領域により大きくなることが抑制されて、熱交換器全体の風速を略均一にすることが可能となる。また、第１の態様のフィン付き熱交換器においては、送風機の回転に起因する特異音の発生を抑えることができるとともに、熱交換器の能力を最大限に発揮することが可能となる。
In the finned heat exchanger according to the first aspect of the present invention configured as described above, there is no region where the arrangement of the heat transfer tubes is sparse in the stacked fins, and as a result, the air wind speed is larger in the region. It becomes possible to make the wind speed of the whole heat exchanger substantially uniform. Moreover, in the heat exchanger with fins of the first aspect, it is possible to suppress the generation of singular sounds due to the rotation of the blower and to maximize the capability of the heat exchanger.
本発明に係る第２の態様のフィン付き熱交換器において、前記の第１の態様における前記第２フィンカラーの直径を、前記第１フィンカラーの直径と同一、または、前記第１フィンカラーの直径よりも小さく形成してもよい。
上記のように構成された本発明に係る第２の態様のフィン付き熱交換器においては、積層されたフィンに設け得るフィンカラーを所望の構成、所望の形状で構成することが可能となり、その領域を通る空気の風速を所望の速度に設定することが可能となり、熱交換器全体の風速を略均一にすることが可能となる。 In the finned heat exchanger according to the second aspect of the present invention, the diameter of the second fin collar in the first aspect is the same as the diameter of the first fin collar, or the diameter of the first fin collar is the same. You may form smaller than a diameter.
In the finned heat exchanger according to the second aspect of the present invention configured as described above, it is possible to configure the fin collar that can be provided on the stacked fins in a desired configuration and a desired shape, It becomes possible to set the wind speed of the air passing through the region to a desired speed, and the wind speed of the entire heat exchanger can be made substantially uniform.
上記のように構成された本発明に係る第２の態様のフィン付き熱交換器においては、積層されたフィンに設け得るフィンカラーを所望の構成、所望の形状で構成することが可能となり、その領域を通る空気の風速を所望の速度に設定することが可能となり、熱交換器全体の風速を略均一にすることが可能となる。 In the finned heat exchanger according to the second aspect of the present invention, the diameter of the second fin collar in the first aspect is the same as the diameter of the first fin collar, or the diameter of the first fin collar is the same. You may form smaller than a diameter.
In the finned heat exchanger according to the second aspect of the present invention configured as described above, it is possible to configure the fin collar that can be provided on the stacked fins in a desired configuration and a desired shape, It becomes possible to set the wind speed of the air passing through the region to a desired speed, and the wind speed of the entire heat exchanger can be made substantially uniform.
本発明に係る第３の態様のフィン付き熱交換器において、前記の第１の態様または第２の態様における前記第２フィンカラーを、前記第１フィンカラーで囲まれた領域に配設するように構成してもよい。
上記のように構成された本発明に係る第３の態様のフィン付き熱交換器は、積層されたフィンにおいて伝熱管との熱交換能力を最大限に発揮することが可能となる。 In the heat exchanger with fins of the third aspect according to the present invention, the second fin collar in the first aspect or the second aspect is disposed in a region surrounded by the first fin collar. You may comprise.
The heat exchanger with fins of the third aspect according to the present invention configured as described above can exhibit the maximum heat exchange capability with the heat transfer tubes in the laminated fins.
上記のように構成された本発明に係る第３の態様のフィン付き熱交換器は、積層されたフィンにおいて伝熱管との熱交換能力を最大限に発揮することが可能となる。 In the heat exchanger with fins of the third aspect according to the present invention, the second fin collar in the first aspect or the second aspect is disposed in a region surrounded by the first fin collar. You may comprise.
The heat exchanger with fins of the third aspect according to the present invention configured as described above can exhibit the maximum heat exchange capability with the heat transfer tubes in the laminated fins.
本発明に係る第４の態様のフィン付き熱交換器においては、前記の第１の態様ないし第３の態様のいずれかの態様における前記複数の第１フィンカラーが気体の流れ方向に対して略直交する方向に沿って並んで配設された列において、前記第２フィンカラーを連続して設けないよう構成してもよい。
上記のように構成された本発明に係る第４の態様のフィン付き熱交換器は、積層されたフィンにおいて伝熱管との熱交換能力を最大限に発揮することが可能となる。 In the heat exchanger with fins of the fourth aspect according to the present invention, the plurality of first fin collars in any one of the first to third aspects is substantially in the gas flow direction. You may comprise so that the said 2nd fin color may not be provided continuously in the row | line | column arrange | positioned along with the orthogonal direction.
The heat exchanger with fins of the fourth aspect according to the present invention configured as described above can maximize the heat exchange capability with the heat transfer tubes in the laminated fins.
上記のように構成された本発明に係る第４の態様のフィン付き熱交換器は、積層されたフィンにおいて伝熱管との熱交換能力を最大限に発揮することが可能となる。 In the heat exchanger with fins of the fourth aspect according to the present invention, the plurality of first fin collars in any one of the first to third aspects is substantially in the gas flow direction. You may comprise so that the said 2nd fin color may not be provided continuously in the row | line | column arrange | positioned along with the orthogonal direction.
The heat exchanger with fins of the fourth aspect according to the present invention configured as described above can maximize the heat exchange capability with the heat transfer tubes in the laminated fins.
本発明に係る第５の態様のフィン付き熱交換器においては、前記の第１の態様ないし第４の態様のいずれかの態様における前記複数の第１フィンカラーが気体の流れ方向に対して略直交する方向に沿って並んで配設された複数列において、前記第２フィンカラーが前記フィンにおける風上前縁側の列および風下後縁側の列に設けられていない構成でもよい。
上記のように構成された本発明に係る第５の態様のフィン付き熱交換器は、熱交換能力を高めつつ熱交換器の風速分布の均一化を図ることができる。 In the heat exchanger with fins of the fifth aspect according to the present invention, the plurality of first fin collars in any one of the first to fourth aspects is substantially in the gas flow direction. In the plurality of rows arranged side by side along the orthogonal direction, the second fin collar may not be provided in the windward leading edge side row and the leeward trailing edge side row of the fin.
The finned heat exchanger according to the fifth aspect of the present invention configured as described above can make the air velocity distribution of the heat exchanger uniform while enhancing the heat exchange capability.
上記のように構成された本発明に係る第５の態様のフィン付き熱交換器は、熱交換能力を高めつつ熱交換器の風速分布の均一化を図ることができる。 In the heat exchanger with fins of the fifth aspect according to the present invention, the plurality of first fin collars in any one of the first to fourth aspects is substantially in the gas flow direction. In the plurality of rows arranged side by side along the orthogonal direction, the second fin collar may not be provided in the windward leading edge side row and the leeward trailing edge side row of the fin.
The finned heat exchanger according to the fifth aspect of the present invention configured as described above can make the air velocity distribution of the heat exchanger uniform while enhancing the heat exchange capability.
本発明に係る第６の態様の空気調和機においては、気体の吸込み口および吹出し口を有するケーシングと、
前記ケーシングに収容され、前記吸込み口から流入する気体と前記伝熱管を流れる冷媒との間で熱交換を行う熱交換器と、
前記ケーシングに収容され、前記熱交換器に対して気体を送風するとともに、気体の流れ方向に対して、前記熱交換器よりも風下側に配設された還流送風機と、を備え、
前記熱交換器は、前記の第１の態様ないし第５の態様のいずれかの態様のフィン付き熱交換器にて構成されるとともに、積層されたフィンには前記還流送風機を囲うように曲げた屈曲部が形成され、
前記第２フィンカラーが前記熱交換器の前記屈曲部に設けられている。 In the air conditioner of the sixth aspect according to the present invention, a casing having a gas inlet and an outlet,
A heat exchanger housed in the casing and performing heat exchange between the gas flowing in from the suction port and the refrigerant flowing through the heat transfer tube;
A recirculation blower that is housed in the casing and blows gas to the heat exchanger, and is disposed on the leeward side of the heat exchanger with respect to the flow direction of the gas,
The heat exchanger is configured with the finned heat exchanger according to any one of the first to fifth aspects, and the stacked fins are bent so as to surround the reflux fan. A bend is formed,
The second fin collar is provided at the bent portion of the heat exchanger.
前記ケーシングに収容され、前記吸込み口から流入する気体と前記伝熱管を流れる冷媒との間で熱交換を行う熱交換器と、
前記ケーシングに収容され、前記熱交換器に対して気体を送風するとともに、気体の流れ方向に対して、前記熱交換器よりも風下側に配設された還流送風機と、を備え、
前記熱交換器は、前記の第１の態様ないし第５の態様のいずれかの態様のフィン付き熱交換器にて構成されるとともに、積層されたフィンには前記還流送風機を囲うように曲げた屈曲部が形成され、
前記第２フィンカラーが前記熱交換器の前記屈曲部に設けられている。 In the air conditioner of the sixth aspect according to the present invention, a casing having a gas inlet and an outlet,
A heat exchanger housed in the casing and performing heat exchange between the gas flowing in from the suction port and the refrigerant flowing through the heat transfer tube;
A recirculation blower that is housed in the casing and blows gas to the heat exchanger, and is disposed on the leeward side of the heat exchanger with respect to the flow direction of the gas,
The heat exchanger is configured with the finned heat exchanger according to any one of the first to fifth aspects, and the stacked fins are bent so as to surround the reflux fan. A bend is formed,
The second fin collar is provided at the bent portion of the heat exchanger.
上記のように構成された本発明に係る第６の態様の空気調和機においては、積層されたフィンにおいて伝熱管の配列が疎となる領域がなくなり、その結果、領域により空気の風速が大きくことが抑制されて、熱交換器全体の風速を略均一にすることが可能となる。また、第６の態様の空気調和機においては、送風機の回転に起因する特異音の発生を抑えることができるとともに、熱交換能力を最大限に発揮することが可能となる。
In the air conditioner according to the sixth aspect of the present invention configured as described above, there is no region where the arrangement of the heat transfer tubes is sparse in the stacked fins, and as a result, the air wind speed is large depending on the region. Is suppressed, and the wind speed of the entire heat exchanger can be made substantially uniform. Moreover, in the air conditioner of the sixth aspect, it is possible to suppress the generation of singular noise due to the rotation of the blower and to maximize the heat exchange capability.
本発明に係る第７の態様のフィン付き熱交換器においては、前記の第６の態様における前記第２フィンカラーを、さらに前記還流送風機よりも鉛直上方側の前記熱交換器に設けた構成としてもよい。
上記のように構成された本発明に係る第７の態様の空気調和機においては、熱交換器の風速分布の均一化を図り、熱交換器の能力を最大限に発揮することが可能となる。 In the heat exchanger with fins of the seventh aspect according to the present invention, the second fin collar in the sixth aspect is further provided in the heat exchanger vertically above the reflux fan. Also good.
In the air conditioner according to the seventh aspect of the present invention configured as described above, the air velocity distribution of the heat exchanger can be made uniform, and the heat exchanger capacity can be maximized. .
上記のように構成された本発明に係る第７の態様の空気調和機においては、熱交換器の風速分布の均一化を図り、熱交換器の能力を最大限に発揮することが可能となる。 In the heat exchanger with fins of the seventh aspect according to the present invention, the second fin collar in the sixth aspect is further provided in the heat exchanger vertically above the reflux fan. Also good.
In the air conditioner according to the seventh aspect of the present invention configured as described above, the air velocity distribution of the heat exchanger can be made uniform, and the heat exchanger capacity can be maximized. .
以下、本発明のフィン付き熱交換器に係る実施の形態について、添付の図面を参照しながら説明する。なお、本発明のフィン付き熱交換器は、以下の実施の形態に記載した熱交換器の構成に限定されるものではなく、以下の実施の形態において説明する技術的思想と同等の技術的思想に基づいて構成される熱交換器を含むものである。
Hereinafter, embodiments of the heat exchanger with fins of the present invention will be described with reference to the accompanying drawings. Note that the finned heat exchanger of the present invention is not limited to the configuration of the heat exchanger described in the following embodiment, but is equivalent to the technical idea described in the following embodiment. The heat exchanger comprised based on is included.
（実施の形態１）
まず、実施の形態１のフィン付き熱交換器が搭載された空気調和機における室内ユニットについて図１に基づき説明する。図１は実施の形態１のフィン付き熱交換器が搭載された室内ユニットの縦断面図である。 (Embodiment 1)
First, an indoor unit in an air conditioner equipped with the finned heat exchanger of Embodiment 1 will be described with reference to FIG. FIG. 1 is a longitudinal sectional view of an indoor unit on which the finned heat exchanger of Embodiment 1 is mounted.
まず、実施の形態１のフィン付き熱交換器が搭載された空気調和機における室内ユニットについて図１に基づき説明する。図１は実施の形態１のフィン付き熱交換器が搭載された室内ユニットの縦断面図である。 (Embodiment 1)
First, an indoor unit in an air conditioner equipped with the finned heat exchanger of Embodiment 1 will be described with reference to FIG. FIG. 1 is a longitudinal sectional view of an indoor unit on which the finned heat exchanger of Embodiment 1 is mounted.
図１に示すように、この空気調和機の室内ユニット１のケーシング２には、前面および上面に吸込み口３ａ，３ｂが設けられており、下面に吹出し口４が設けられている。図１においては、ケーシング２に対して気体が吸い込まれる気体において、概略の流れの方向は、矢印にて示している。ケーシング２の内部には、貫流送風機５とフィン付き熱交換器１０とが収納されている。
As shown in FIG. 1, the casing 2 of the indoor unit 1 of this air conditioner is provided with suction ports 3a and 3b on the front and upper surfaces, and an outlet 4 on the lower surface. In FIG. 1, in the gas in which the gas is sucked into the casing 2, the schematic flow direction is indicated by an arrow. Inside the casing 2, a once-through fan 5 and a heat exchanger 10 with fins are accommodated.
フィン付き熱交換器１０は、ケーシング２内の前面側に配置されて、前面側に突出するように凸状に形成された前面側熱交換器２０と、ケーシング２内の背面側に配置された背面側熱交換器４０とから構成されている。また、前面側熱交換器２０および背面側熱交換器４０は、図１に示すように、貫流送風機５を風上側から取り囲むように配置されている。
The finned heat exchanger 10 is arranged on the front side in the casing 2 and is arranged on the back side in the casing 2 and the front side heat exchanger 20 formed in a convex shape so as to protrude to the front side. It is comprised from the back side heat exchanger 40. Moreover, the front side heat exchanger 20 and the back side heat exchanger 40 are arrange | positioned so that the cross-flow fan 5 may be surrounded from an upwind side, as shown in FIG.
また、実施の形態１における前面側熱交換器２０においては、帯状の複数のフィン２１が所定間隔を有して並行に積層されており、ケーシング２に流れる気体の主流方向に対して略平行に配置されている。そのため、積層されたフィン２１においては、フィン間の所定間隔の隙間空間を気体が流れ過ぎるよう構成されている。また、前面側熱交換器２０においては、所定間隔を有して並行に配設された複数のフィン２１と、複数のフィン２１を貫通して熱伝導するように固着された伝熱管５０と、を有して構成されている。伝熱管５０の内部には熱伝導部材である冷媒が流れるよう構成されている。
Further, in the front-side heat exchanger 20 in the first embodiment, a plurality of strip-like fins 21 are stacked in parallel with a predetermined interval, and substantially parallel to the main flow direction of the gas flowing in the casing 2. Has been placed. For this reason, the stacked fins 21 are configured such that the gas flows excessively through a gap space at a predetermined interval between the fins. Further, in the front side heat exchanger 20, a plurality of fins 21 arranged in parallel with a predetermined interval, and a heat transfer tube 50 fixed so as to conduct heat through the plurality of fins 21, It is comprised. The heat transfer tube 50 is configured so that a refrigerant that is a heat conducting member flows.
図１に示すように、前面側熱交換器２０は、気体の流入方向に対して、突出するように湾曲した曲線部分を有する送風機近傍の第１の領域Ａ、すなわち実施の形態１においては下側領域Ａと、直線部分を有し、貫流送風機５から前方の上方に離れた第２の領域Ｂ、すなわち実施の形態１においては上側領域Ｂとの２つの領域に略分けられる。前面側熱交換器２０において、貫流送風機５に近い側の第１の領域Ａ、すなわち曲線部分のフィン２１の風上前縁部２０ａと風下後縁２０ｂとの間の下側領域Ａには、気体の主流方向に略直交するように、複数のフィン２１を貫通する第１の伝熱管５０（５０ａ）が配設されている。また、前面側熱交換器２０において、貫流送風機５に遠い側の第２の領域Ｂ、すなわちフィン２１の風上前縁部２０ａと風下後縁２０ｂとの間の直線部分の上側領域Ｂには、気体の主流方向に略直交するように、複数のフィン２１を貫通する第２の伝熱管５０（５０ｂ）が配設されている。
As shown in FIG. 1, the front-side heat exchanger 20 has a first area A in the vicinity of the blower having a curved portion that is curved so as to protrude with respect to the gas inflow direction, that is, the lower side in the first embodiment. The side region A has a straight portion and is roughly divided into two regions, ie, a second region B that is separated from the cross-flow blower 5 forward and upward, that is, an upper region B in the first embodiment. In the front side heat exchanger 20, the first area A on the side close to the once-through fan 5, that is, the lower area A between the windward leading edge 20a and the leeward trailing edge 20b of the fin 21 in the curved portion, A first heat transfer tube 50 (50a) penetrating the plurality of fins 21 is disposed so as to be substantially orthogonal to the gas main flow direction. Further, in the front side heat exchanger 20, the second region B far from the once-through fan 5, that is, the upper region B of the straight portion between the windward leading edge 20 a and the leeward trailing edge 20 b of the fin 21 The second heat transfer tubes 50 (50b) penetrating the plurality of fins 21 are disposed so as to be substantially orthogonal to the main gas flow direction.
同様に、背面側熱交換器４０においても、帯状の複数のフィン２１が所定間隔を有して並行に積層されており、ケーシング２に流れる気体の主流方向に対して略平行に配置されている。その結果、背面側熱交換器４０においても、フィン間の所定間隔の隙間空間を気体が流れ過ぎるよう構成されている。また、背面側熱交換器４０においても、複数のフィン２１を貫通して熱伝導するように固着された第３の伝熱管５０（５０ｃ）が設けられている。
Similarly, also in the back surface side heat exchanger 40, a plurality of strip-shaped fins 21 are laminated in parallel with a predetermined interval, and are arranged substantially parallel to the main flow direction of the gas flowing in the casing 2. . As a result, the back side heat exchanger 40 is also configured such that the gas flows excessively in the gap space with a predetermined interval between the fins. The rear heat exchanger 40 is also provided with a third heat transfer tube 50 (50c) fixed so as to penetrate the plurality of fins 21 and conduct heat.
なお、前面側熱交換器２０における第１の伝熱管５０ａと第２の伝熱管５０ｂ、および背面側熱交換器４０における第３の伝熱管５０ｃは直線状に形成され、それぞれの端部が、ヘアピン状に屈曲したＵ字管（図示せず）によって接続されることにより蛇行した冷媒通路を構成する。
In addition, the 1st heat exchanger tube 50a and the 2nd heat exchanger tube 50b in the front side heat exchanger 20 and the 3rd heat exchanger tube 50c in the back side heat exchanger 40 are formed linearly, and each edge part is formed. A meandering refrigerant passage is formed by being connected by a U-shaped tube (not shown) bent into a hairpin shape.
前面側熱交換器２０における下側領域Ａを貫通するよう装着される伝熱管５０は、気体の主となる流れ方向に対して略直交する方向に並んで配設された列が、１列ないし３列となるように配設されている。前面側熱交換器２０における貫流送風機５から遠い側の上側領域Ｂ、および背面側熱交換器４０においては、伝熱管５０が気体の主となる流れ方向に対して略直交する方向に並んで配設された列が、２列ないし４列となるように配設されている。
The heat transfer tube 50 mounted so as to penetrate the lower region A in the front heat exchanger 20 has one or more rows arranged in a direction substantially perpendicular to the main flow direction of gas. They are arranged in three rows. In the upper region B far from the once-through fan 5 in the front-side heat exchanger 20 and the rear-side heat exchanger 40, the heat transfer tubes 50 are arranged side by side in a direction substantially orthogonal to the main flow direction of gas. The provided rows are arranged in two to four rows.
実施の形態１のフィン付き熱交換器１０においては、フィン２１を貫通するように装着される伝熱管５０の直径は、２種類以上で構成されている。例えば、前面側熱交換器２０の貫流送風機５に近い側の第１の領域Ａ、すなわち前面側熱交換器２０の下側領域Ａに挿入される伝熱管５０の直径は、前面側熱交換器２０の貫流送風機５から遠い側の第２の領域Ｂ、すなわち前面側熱交換器２０の上側領域Ｂに挿入される伝熱管５０の直径より大きく設定されている。また、前面側熱交換器２０の下側領域Ａに挿入される伝熱管５０の直径は、背面側熱交換器４０に挿入される伝熱管５０の直径より大きく設定されている。
In the heat exchanger 10 with fins according to the first embodiment, the diameter of the heat transfer tube 50 mounted so as to penetrate the fins 21 is composed of two or more types. For example, the diameter of the heat transfer tube 50 inserted into the first region A on the side close to the once-through fan 5 of the front-side heat exchanger 20, that is, the lower region A of the front-side heat exchanger 20, is the front-side heat exchanger. 20 is set to be larger than the diameter of the heat transfer tube 50 inserted into the second region B far from the once-through fan 5, that is, the upper region B of the front-side heat exchanger 20. Further, the diameter of the heat transfer tube 50 inserted into the lower region A of the front side heat exchanger 20 is set larger than the diameter of the heat transfer tube 50 inserted into the back side heat exchanger 40.
前面側熱交換器２０の上側領域Ｂに挿入される伝熱管５０においても、風上前縁側の伝熱管５０の直径は、風下後縁側の伝熱管５０の直径より大きく設定されている。また、背面側熱交換器４０に挿入される伝熱管５０においても、吸込み口３ｂに近い風上側の伝熱管５０の直径は、貫流送風機に近い風下側の伝熱管５０の直径より大きく設定されている。
Also in the heat transfer tube 50 inserted in the upper region B of the front heat exchanger 20, the diameter of the heat transfer tube 50 on the windward leading edge side is set larger than the diameter of the heat transfer tube 50 on the leeward trailing edge side. Also, in the heat transfer tube 50 inserted into the back side heat exchanger 40, the diameter of the heat transfer tube 50 on the leeward side near the suction port 3b is set larger than the diameter of the heat transfer tube 50 on the leeward side near the once-through fan. Yes.
実施の形態１のフィン付き熱交換器１０において、前面側熱交換器２０および背面側熱交換器４０における各フィン２１に対しては、ヘアピン状に蛇行した冷媒通路を構成する伝熱管５０が偶数箇所で貫通して伝熱可能に固着されている。
In the heat exchanger 10 with fins according to the first embodiment, the heat transfer tubes 50 constituting the refrigerant passages meandering in a hairpin shape are even for the fins 21 in the front-side heat exchanger 20 and the rear-side heat exchanger 40. It is fixed so as to be able to transfer heat through the part.
上記のように構成された実施の形態１のフィン付き熱交換器１０を用いた空気調和機の運転時において、前面の吸込み口３ａもしくは上面の吸込み口３ｂから吸い込まれた空気は前面側熱交換器２０もしくは背面側熱交換器４０を通過し、貫流送風機５を通って吹出し口４から吹出される。
During the operation of the air conditioner using the finned heat exchanger 10 of the first embodiment configured as described above, the air sucked from the front suction port 3a or the upper suction port 3b is exchanged by the front side. It passes through the heat exchanger 20 or the back side heat exchanger 40, passes through the once-through fan 5, and is blown out from the outlet 4.
実施の形態１のフィン付き熱交換器１０において、前面側熱交換器２０における貫流送風機５と近接する下側領域Ａのフィン２１には、ヘアピン状に蛇行した冷媒通路を構成する伝熱管５０が挿入される偶数個の第１フィンカラー２３が設けられている。また、フィン２１の下側（屈曲部分）には、伝熱管５０が挿入される第１フィンカラー２３に囲まれた領域Ｃに、伝熱管５０が挿入される第１フィンカラー２３とは別に、伝熱管５０が挿入されない第２フィンカラー２４が設けられている。伝熱管５０が挿入されない第２フィンカラー２４は、伝熱管５０が挿入される第１フィンカラー２３の直径より小さい直径を有しており、第１フィンカラー２３と同様の形状を有して構成されている。
In the heat exchanger 10 with fins of the first embodiment, the heat transfer tubes 50 that constitute the refrigerant passages meandering in a hairpin shape are provided on the fins 21 in the lower region A adjacent to the cross-flow fan 5 in the front-side heat exchanger 20. An even number of first fin collars 23 to be inserted are provided. In addition, on the lower side (bent portion) of the fin 21, separately from the first fin collar 23 in which the heat transfer tube 50 is inserted in the region C surrounded by the first fin collar 23 in which the heat transfer tube 50 is inserted, A second fin collar 24 into which the heat transfer tube 50 is not inserted is provided. The second fin collar 24 into which the heat transfer tube 50 is not inserted has a diameter smaller than the diameter of the first fin collar 23 into which the heat transfer tube 50 is inserted, and has the same shape as the first fin collar 23. Has been.
なお、複数の第１フィンカラー２３が気体の流れ方向に対して略直交する方向に沿って並んで配設された列において、第２フィンカラー２４は連続して設けられておらず、第１フィンカラー２３の間に設けられている。
In the row in which the plurality of first fin collars 23 are arranged side by side along a direction substantially orthogonal to the gas flow direction, the second fin collars 24 are not continuously provided, It is provided between the fin collars 23.
また、複数の第１フィンカラー２３は気体の流れ方向に対して略直交する方向に沿って並んで複数列配設されており、第２フィンカラー２４はフィン２１における風上前縁２０ａに最も近い位置の列および風下後縁２０ｂに最も近い位置の列には設けられていない。第２フィンカラー２４は、複数の第１フィンカラー２３に取り囲まれるよう配設されている。
The plurality of first fin collars 23 are arranged in a plurality of rows side by side along a direction substantially orthogonal to the gas flow direction, and the second fin collar 24 is located at the most upwind front edge 20 a of the fin 21. It is not provided in the row at the closest position and the row at the position closest to the leeward trailing edge 20b. The second fin collar 24 is disposed so as to be surrounded by the plurality of first fin collars 23.
また、実施の形態１のフィン付き熱交換器１０においては、伝熱管５０が挿入されない第２フィンカラー２４が、前面側熱交換器２０における貫流送風機５と近接する下側領域Ａに設けた例について説明したが、本発明はこのような構成に限定されるものではなく、例えば第２フィンカラー２４を背面側熱交換器４０における貫流送風機５の鉛直上方に設けてもよく、第２フィンカラー２４は伝熱効果および通風抵抗などが考慮されて所望の位置に配設される。このように第２フィンカラー２４を背面側熱交換器４０に設ける場合においても、伝熱管５０が挿入されるフィンカラーに囲まれた領域に配設されている。また、背面側熱交換器４０においても、伝熱管５０が挿入されるフィンカラーが気体の流れ方向に対して略直交する方向に沿って並んで配設された列において、第２フィンカラー２４は連続して設けられていない構成である。
In the finned heat exchanger 10 of the first embodiment, the second fin collar 24 into which the heat transfer tube 50 is not inserted is provided in the lower region A adjacent to the cross-flow fan 5 in the front-side heat exchanger 20. However, the present invention is not limited to such a configuration. For example, the second fin collar 24 may be provided vertically above the cross-flow fan 5 in the rear heat exchanger 40, and the second fin collar 24 may be provided. 24 is arranged at a desired position in consideration of the heat transfer effect and ventilation resistance. As described above, even when the second fin collar 24 is provided in the back surface side heat exchanger 40, the second fin collar 24 is disposed in a region surrounded by the fin collar into which the heat transfer tube 50 is inserted. In the rear heat exchanger 40 as well, in the row in which the fin collars into which the heat transfer tubes 50 are inserted are arranged along the direction substantially perpendicular to the gas flow direction, the second fin collars 24 are It is the structure which is not provided continuously.
なお、前面側熱交換器２０における貫流送風機５から離れた領域である上側領域Ｂのフィン２１、および背面側熱交換器４０のフィン２１においては、直径の大きい伝熱管５０が挿入されるフィンカラーが吸込み口側である前縁側に配置されており、直径の小さい伝熱管５０が挿入されるフィンカラーが貫流送風機側である後縁側に設けられている。
In addition, in the fin 21 of the upper area | region B which is an area | region away from the once-through fan 5 in the front side heat exchanger 20, and the fin 21 of the back side heat exchanger 40, the fin collar by which the heat exchanger tube 50 with a large diameter is inserted. Is arranged on the front edge side which is the suction port side, and a fin collar into which the heat transfer tube 50 having a small diameter is inserted is provided on the rear edge side which is the cross-flow fan side.
実施の形態１においては、伝熱管５０が挿入されない第２フィンカラー２４をフィン２１にひとつだけ設けた構成であるが、本発明はこのような構成に限定されず、フィン付き熱交換器１０の仕様、構成、形状、効率等を考慮して適切な数が設けられる。
In Embodiment 1, although it is the structure which provided only the 2nd fin collar 24 in which the heat exchanger tube 50 is not inserted in the fin 21, this invention is not limited to such a structure, The heat exchanger 10 with a fin An appropriate number is provided in consideration of the specification, configuration, shape, efficiency, and the like.
上記のように構成された実施の形態１のフィン付き熱交換器１０においては、前面側熱交換器２０の下側領域Ａの伝熱管５０と第１フィンカラー２３との装着箇所が、気体の主流方向（貫流送風機に向かう方向）に沿って１箇所ないし３箇所並んで配置されている。また、前面側熱交換器２０の上側領域Ｂおよび背面側熱交換器４０の伝熱管５０と第１フィンカラー２３との装着箇所は、気体の主流方向（貫流送風機に向かう方向）に沿って２箇所ないし４箇所並んで配置されている。このように構成されたフィン付き熱交換器１において、貫流送風機５に近く、風速が大きくなりやすい前面側熱交換器２０の下側領域Ａには、伝熱管５０が挿入される複数の第１フィンカラー２３により囲まれた領域Ｃに、伝熱管５０が挿入されない第２フィンカラー２４が設けられている。このように伝熱管５０が挿入される第１フィンカラー２３の直径より小さい直径を有する第２フィンカラー２４を貫流送風機５に近く、風速が大きくなりやすい前面側熱交換器２０の下側領域Ａ（領域Ｃ）に設けることにより、所定間隔を有して並設（積層）されたフィン２１の間に円筒部分が形成され、この円筒部分が送風の適度な抵抗になる。このように第２フィンカラー２４を領域Ｃに設けることにより、前面側熱交換器２０の下側領域Ａにおいて風速が速くなることを抑制することができる構成となる。この結果、実施の形態１のフィン付き熱交換器１０においては、風速分布の均一化を図ることができ、熱交換器としての能力を最大限に発揮できる構成となると共に、不均一な風速分布に起因する特異音の発生を抑えることが可能となる。
In the finned heat exchanger 10 of the first embodiment configured as described above, the mounting location of the heat transfer tube 50 and the first fin collar 23 in the lower region A of the front side heat exchanger 20 is a gas. It is arranged in one or three places along the main flow direction (direction toward the once-through fan). Further, the upper region B of the front side heat exchanger 20 and the mounting locations of the heat transfer tubes 50 and the first fin collars 23 of the rear side heat exchanger 40 are 2 along the main flow direction of gas (the direction toward the cross-flow fan). It is arranged side by side or 4 places. In the finned heat exchanger 1 configured as described above, the plurality of first heat transfer tubes 50 are inserted in the lower region A of the front heat exchanger 20 that is close to the once-through fan 5 and tends to increase the wind speed. A second fin collar 24 into which the heat transfer tube 50 is not inserted is provided in a region C surrounded by the fin collar 23. In this way, the second fin collar 24 having a diameter smaller than the diameter of the first fin collar 23 into which the heat transfer tube 50 is inserted is close to the once-through fan 5, and the lower region A of the front heat exchanger 20 where the wind speed tends to increase. By providing in (area | region C), a cylindrical part is formed between the fins 21 arranged in parallel (stacked) with a predetermined space | interval, and this cylindrical part becomes appropriate resistance of ventilation. Thus, by providing the 2nd fin collar 24 in the area | region C, it becomes a structure which can suppress that a wind speed becomes quick in the lower side area | region A of the front side heat exchanger 20. FIG. As a result, in the heat exchanger 10 with fins of the first embodiment, the wind speed distribution can be made uniform, and the ability as a heat exchanger can be maximized, and the non-uniform wind speed distribution. It is possible to suppress the generation of singular sounds due to the noise.
また、実施の形態１のフィン付き熱交換器１０では、伝熱管５０が挿入されない第２フィンカラー２４の直径を、第２フィンカラー２４のまわりに配置された伝熱管５０が挿入される第１フィンカラー２３の直径より小さく形成されている。ただし、第２フィンカラー２４の直径は、前面側熱交換器２０の上側領域Ｂに設けられた直径が小さなフィンカラー（第３フィンカラー２５）、および背面側熱交換器４０における伝熱管５０が挿入されない直径が小さなフィンカラー（第３フィンカラー２５）の直径と同じ直径に形成されている。したがって、フィンプレス金型のメンテナンスなどのとき、伝熱管５０が挿入されない第２フィンカラー２４の加工ツールは、伝熱管５０が挿入されるフィンカラーにおいて直径が同じである第３フィンカラー２５と同じ加工ツールを用いることができる。このため、メンテナンスの対応が容易であり、メンテナンスに要する時間、費用の削減の点においても利点がある。
In the finned heat exchanger 10 of the first embodiment, the diameter of the second fin collar 24 into which the heat transfer tube 50 is not inserted is set to the first heat transfer tube 50 arranged around the second fin collar 24. It is formed smaller than the diameter of the fin collar 23. However, the diameter of the second fin collar 24 is that of the fin collar (third fin collar 25) having a small diameter provided in the upper region B of the front side heat exchanger 20 and the heat transfer tube 50 in the rear side heat exchanger 40. The diameter that is not inserted is the same as the diameter of the small fin collar (third fin collar 25). Therefore, the processing tool of the second fin collar 24 in which the heat transfer tube 50 is not inserted is the same as the third fin collar 25 having the same diameter in the fin collar into which the heat transfer tube 50 is inserted, for example, during maintenance of the fin press mold. A processing tool can be used. For this reason, it is easy to handle maintenance, and there are advantages in terms of reduction in time and cost required for maintenance.
なお、実施の形態１のフィン付き熱交換器１０においては、伝熱管５０が挿入されない第２フィンカラー２４の直径が、伝熱管５０が挿入される第１フィンカラー２３の直径より小さい場合について説明したが、本発明はこのような構成に限定されるものではなく、第２フィンカラー２４の直径は、第１フィンカラー２３の直径と同一でもよく、伝熱効果および通風抵抗などが考慮されて所望の直径に決定される。
In the finned heat exchanger 10 according to the first embodiment, the case where the diameter of the second fin collar 24 into which the heat transfer tube 50 is not inserted is smaller than the diameter of the first fin collar 23 into which the heat transfer tube 50 is inserted will be described. However, the present invention is not limited to such a configuration, and the diameter of the second fin collar 24 may be the same as the diameter of the first fin collar 23 in consideration of the heat transfer effect and the ventilation resistance. The desired diameter is determined.
本発明のフィン付き熱交換器および空気調和機においては、前面側熱交換器と背面側熱交換器の少なくとも一方の熱交換器に設けられる伝熱管は、その直径が２種類以上あり、伝熱管が挿入される第１フィンカラーの数は伝熱管が挿入される伝熱管のそれぞれの直径ごとに偶数個設けられている。また、伝熱管において、最少直径以外の伝熱管が挿入される第１フィンカラーに囲まれた領域においては、伝熱管が挿入される第１フィンカラーとは別に、伝熱管が挿入されない第２フィンカラーを配置している。このように、伝熱管が挿入される第１フィンカラーに囲まれた領域において、第２フィンカラーを配設することにより、熱交換器において送風に対する適度な抵抗となり、フィン付き熱交換器の風速分布を略均一化し、熱交換性能を向上させることができる。
上記のように、本発明においては、フィン付き熱交換器の風速分布の均一化を実現し、熱交換性能を向上させる熱交換器および空気調和機を提供することができる。 In the heat exchanger with fins and the air conditioner of the present invention, the heat transfer tubes provided in at least one of the front-side heat exchanger and the rear-side heat exchanger have two or more types of diameters. The number of the first fin collars to be inserted is an even number for each diameter of the heat transfer tubes into which the heat transfer tubes are inserted. Further, in the heat transfer tube, in a region surrounded by the first fin collar in which the heat transfer tube other than the minimum diameter is inserted, the second fin in which the heat transfer tube is not inserted separately from the first fin collar in which the heat transfer tube is inserted. The color is arranged. As described above, by arranging the second fin collar in the region surrounded by the first fin collar where the heat transfer tube is inserted, the heat exchanger has an appropriate resistance to air blowing, and the wind speed of the finned heat exchanger is increased. The distribution can be made substantially uniform and the heat exchange performance can be improved.
As described above, in the present invention, it is possible to provide a heat exchanger and an air conditioner that can achieve uniform wind speed distribution of a finned heat exchanger and improve heat exchange performance.
上記のように、本発明においては、フィン付き熱交換器の風速分布の均一化を実現し、熱交換性能を向上させる熱交換器および空気調和機を提供することができる。 In the heat exchanger with fins and the air conditioner of the present invention, the heat transfer tubes provided in at least one of the front-side heat exchanger and the rear-side heat exchanger have two or more types of diameters. The number of the first fin collars to be inserted is an even number for each diameter of the heat transfer tubes into which the heat transfer tubes are inserted. Further, in the heat transfer tube, in a region surrounded by the first fin collar in which the heat transfer tube other than the minimum diameter is inserted, the second fin in which the heat transfer tube is not inserted separately from the first fin collar in which the heat transfer tube is inserted. The color is arranged. As described above, by arranging the second fin collar in the region surrounded by the first fin collar where the heat transfer tube is inserted, the heat exchanger has an appropriate resistance to air blowing, and the wind speed of the finned heat exchanger is increased. The distribution can be made substantially uniform and the heat exchange performance can be improved.
As described above, in the present invention, it is possible to provide a heat exchanger and an air conditioner that can achieve uniform wind speed distribution of a finned heat exchanger and improve heat exchange performance.
本発明をある程度の詳細さをもって上記の実施の形態において説明したが、上記の実施の形態の開示内容は構成の細部において変化してしかるべきものであり、この実施の形態における要素の組合せや順序の変化は請求された本発明の範囲及び思想を逸脱することなく実現し得るものである。
Although the present invention has been described in the above embodiment with a certain degree of detail, the disclosure content of the above embodiment should be changed in the details of the configuration, and the combination and order of the elements in this embodiment Changes may be made without departing from the scope and spirit of the claimed invention.
本発明のフィン付き熱交換器は、風速の均一化を実現することにより、送風機の回転に起因する異音の発生を抑制するとともに、良好な熱交換性能を有するため、空調機器のみならず小型化が要求される空気清浄機、除湿機、ヒートポンプ乾燥方式を採用した洗濯乾燥機などの熱交換ユニット等の用途に適用できる。
The finned heat exchanger of the present invention suppresses the generation of noise due to the rotation of the blower by realizing uniform wind speed, and has good heat exchange performance, so that it is small in size as well as air conditioning equipment. It can be applied to applications such as heat exchange units such as air cleaners, dehumidifiers, and washer / dryers that employ a heat pump drying method.
１ 室内ユニット
２ ケーシング
３ａ，３ｂ 吸込み口
４ 吹出し口
５ 貫流送風機
１０ フィン付き熱交換器
２０ 前面側熱交換器
２０ａ 風上前縁
２０ｂ 風下後縁
２１ フィン
２３ 第１フィンカラー
２４ 第２フィンカラー
２５ 第３フィンカラー
４０ 背面側熱交換器
５０ 伝熱管 DESCRIPTION OF SYMBOLS 1Indoor unit 2 Casing 3a, 3b Inlet 4 Outlet 5 Cross-flow fan 10 Heat exchanger with fin 20 Front side heat exchanger 20a Upwind front edge 20b Downwind trailing edge 21 Fin 23 1st fin collar 24 2nd fin collar 25 3rd fin collar 40 Back side heat exchanger 50 Heat transfer tube
２ ケーシング
３ａ，３ｂ 吸込み口
４ 吹出し口
５ 貫流送風機
１０ フィン付き熱交換器
２０ 前面側熱交換器
２０ａ 風上前縁
２０ｂ 風下後縁
２１ フィン
２３ 第１フィンカラー
２４ 第２フィンカラー
２５ 第３フィンカラー
４０ 背面側熱交換器
５０ 伝熱管 DESCRIPTION OF SYMBOLS 1
Claims (7)
- 内部を冷媒が流動する伝熱管と、
気体が通過するように積層され、前記伝熱管が挿入される複数の第１フィンカラーを有する複数のフィンと、を備え、
前記フィンにおいて、前記複数の第１フィンカラーは気体の流れ方向に対して略直交する方向に沿って並んで複数列に配設され、前記第１フィンカラーの列の中に、前記伝熱管が挿入されない第２フィンカラーが設けられたフィン付き熱交換器。 A heat transfer tube in which the refrigerant flows;
A plurality of fins having a plurality of first fin collars stacked such that gas passes therethrough and into which the heat transfer tubes are inserted;
In the fin, the plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the gas flow direction, and the heat transfer tubes are disposed in the rows of the first fin collars. A finned heat exchanger provided with a second fin collar that is not inserted. - 前記第２フィンカラーの直径は、前記第１フィンカラーの直径と同一、または、前記第１フィンカラーの直径よりも小さく形成された請求項１に記載のフィン付き熱交換器。 The heat exchanger with fins according to claim 1, wherein the diameter of the second fin collar is the same as the diameter of the first fin collar or smaller than the diameter of the first fin collar.
- 前記第２フィンカラーは、前記第１フィンカラーで囲まれた領域に配設された請求項１または２に記載のフィン付き熱交換器。 The finned heat exchanger according to claim 1 or 2, wherein the second fin collar is disposed in a region surrounded by the first fin collar.
- 前記複数の第１フィンカラーが気体の流れ方向に対して略直交する方向に沿って並んで配設された列において、前記第２フィンカラーが連続して設けられていない構成である請求項１ないし３のいずれか一項に記載のフィン付き熱交換器。 2. The structure in which the second fin collars are not continuously provided in a row in which the plurality of first fin collars are arranged side by side along a direction substantially orthogonal to the gas flow direction. The heat exchanger with a fin as described in any one of thru | or 3.
- 前記複数の第１フィンカラーが気体の流れ方向に対して略直交する方向に沿って並んで配設された複数列において、前記第２フィンカラーが前記フィンにおける風上前縁側の列および風下後縁側の列に設けられていない構成である請求項１ないし４のいずれか一項に記載のフィン付き熱交換器。 In the plurality of rows in which the plurality of first fin collars are arranged side by side along a direction substantially orthogonal to the gas flow direction, the second fin collar is arranged on the windward leading edge side of the fin and the leeward rear The heat exchanger with fins according to any one of claims 1 to 4, wherein the heat exchanger is not provided in the row on the edge side.
- 気体の吸込み口および吹出し口を有するケーシングと、
前記ケーシングに収容され、前記吸込み口から流入する気体と前記伝熱管を流れる冷媒との間で熱交換を行う熱交換器と、
前記ケーシングに収容され、前記熱交換器に対して気体を送風するとともに、気体の流れ方向に対して、前記熱交換器よりも風下側に配設された還流送風機と、を備えた空気調和機であって、
前記熱交換器は、請求項１ないし５のいずれか一項に記載のフィン付き熱交換器にて構成されるとともに、積層されたフィンには前記還流送風機を囲うように曲げた屈曲部が形成され、
前記第２フィンカラーが前記熱交換器の前記屈曲部に設けられた空気調和機。 A casing having a gas inlet and outlet;
A heat exchanger housed in the casing and performing heat exchange between the gas flowing in from the suction port and the refrigerant flowing through the heat transfer tube;
An air conditioner that is housed in the casing and blows gas to the heat exchanger, and is provided with a reflux fan disposed on the leeward side of the heat exchanger in the gas flow direction. Because
The heat exchanger is configured by the heat exchanger with fins according to any one of claims 1 to 5, and a bent portion that is bent so as to surround the reflux fan is formed in the stacked fins. And
The air conditioner in which the second fin collar is provided in the bent portion of the heat exchanger. - 前記第２フィンカラーがさらに前記還流送風機よりも鉛直上方側の前記熱交換器に設けられた請求項６に記載の空気調和機。 The air conditioner according to claim 6, wherein the second fin collar is further provided in the heat exchanger vertically above the reflux fan.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2013550107A JP6195197B2 (en) | 2011-12-19 | 2012-12-13 | Finned heat exchanger |
| CN201280042565.5A CN103765149B (en) | 2011-12-19 | 2012-12-13 | Finned heat exchanger |
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| JP2011-276784 | 2011-12-19 |
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| JP2015049004A (en) * | 2013-09-03 | 2015-03-16 | 日立アプライアンス株式会社 | Air conditioner and heat exchanger for air conditioner |
| JP2018119742A (en) * | 2017-01-25 | 2018-08-02 | 日立ジョンソンコントロールズ空調株式会社 | Indoor equipment of air conditioner |
| JPWO2019123743A1 (en) * | 2017-12-20 | 2020-12-10 | パナソニックＩｐマネジメント株式会社 | Indoor unit of air conditioner |
| US11306924B2 (en) * | 2016-11-21 | 2022-04-19 | Daikin Industries, Ltd. | Indoor unit for air conditioning device |
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| JPH03211396A (en) * | 1990-01-16 | 1991-09-17 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JPH10185359A (en) * | 1996-10-02 | 1998-07-14 | Matsushita Electric Ind Co Ltd | Finned heat exchanger |
| US6142220A (en) * | 1996-10-02 | 2000-11-07 | Matsushita Electric Industrial Co., Ltd. | Finned heat exchanger |
| JP4775429B2 (en) * | 2008-05-26 | 2011-09-21 | パナソニック株式会社 | Finned tube heat exchanger |
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| JP2002079335A (en) * | 2000-09-07 | 2002-03-19 | Matsushita Refrig Co Ltd | Heat exchanger, its manufacturing method and its forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015049004A (en) * | 2013-09-03 | 2015-03-16 | 日立アプライアンス株式会社 | Air conditioner and heat exchanger for air conditioner |
| US11306924B2 (en) * | 2016-11-21 | 2022-04-19 | Daikin Industries, Ltd. | Indoor unit for air conditioning device |
| JP2018119742A (en) * | 2017-01-25 | 2018-08-02 | 日立ジョンソンコントロールズ空調株式会社 | Indoor equipment of air conditioner |
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| JP7531172B2 (en) | 2017-12-20 | 2024-08-09 | パナソニックＩｐマネジメント株式会社 | Air conditioner indoor unit |
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| CN103765149A (en) | 2014-04-30 |
| JP6195197B2 (en) | 2017-09-13 |
| JPWO2013094162A1 (en) | 2015-04-27 |
| CN103765149B (en) | 2016-11-16 |
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