EP3904808A1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- EP3904808A1 EP3904808A1 EP19902627.9A EP19902627A EP3904808A1 EP 3904808 A1 EP3904808 A1 EP 3904808A1 EP 19902627 A EP19902627 A EP 19902627A EP 3904808 A1 EP3904808 A1 EP 3904808A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- curved
- fin
- surface portion
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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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
- F28D1/053—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 straight
- F28D1/0535—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 straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
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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
- F28F1/126—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 consisting of zig-zag shaped fins
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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
- F28F1/126—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 consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
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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
- F28F1/14—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 longitudinally
- F28F1/20—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 longitudinally the means being attachable to the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials
-
- 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
- F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements
-
- 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
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
Definitions
- the embodiments of the present invention relate to a heat exchanger.
- the object of the embodiments of the present invention is to provide a heat exchanger, which can increase the heat exchange area, for example.
- a heat exchanger comprising: a plurality of heat exchange tubes arranged in a first direction and extending in a second direction perpendicular to the first direction; and a plurality of fins arranged between two adjacent heat exchange tubes and in contact with each other, the fin comprising a curved-surface portion.
- the second direction and a third direction perpendicular to the first direction and the second direction define a reference plane; in at least one of two mutually perpendicular cross sections perpendicular to the reference plane, the curved-surface portion has a curved-line shape.
- the curved-surface portion is formed by a plurality of planar portions.
- the curved-surface portion of the fin has a smaller curvature at one side in the third direction of the heat exchanger than at the other side in the third direction of the heat exchanger; and/or the curved-surface portion of the fin has a smaller curvature at one side in the second direction of the heat exchanger than at the other side in the second direction of the heat exchanger.
- the curvature of the curved-surface portion of the fin gradually increases from one side in the third direction of the heat exchanger to the other side in the third direction of the heat exchanger; and/or the curvature of the curved-surface portion of the fin gradually increases from one side in the second direction of the heat exchanger to the other side in the second direction of the heat exchanger.
- the curvature of the curved-surface portion of the fin is zero at said one side in the third direction of the heat exchanger; and/or the curvature of the curved-surface portion of the fin is zero at said one side in the second direction of the heat exchanger.
- the curved-surface portion of the fin has a corrugated shape and comprises alternately arranged strip-shaped ridges and troughs.
- mutually contacting ridges of the curved-surface portions of two adjacent fins cross over each other.
- mutually contacting ridges of the curved-surface portions of two adjacent fins are arranged symmetrically with respect to a plane defined by the first direction and the second direction.
- the curved-surface portion of the fin when viewed in the first direction, has an I-shape, a V-shape, a W-shape, a C-shape or an L-shape.
- the curved-surface portion of the fin has a bumpy shape and comprises multiple rows of discrete protrusions and multiple rows of discrete depressions.
- protrusions of the curved-surface portions of two adjacent fins are in contact with each other.
- adjacent fins between two adjacent heat exchange tubes are spaced apart at one side in the third direction of the heat exchanger; and/or adjacent fins between two adjacent heat exchange tubes are spaced apart at one side in the second direction of the heat exchanger.
- the heat exchanger according to the embodiments of the present invention can increase the heat exchange area, for example.
- a heat exchanger 100 comprises: a plurality of heat exchange tubes 1 arranged in a first direction D1 and extending in a second direction D2 perpendicular to the first direction D1; and a plurality of fins 2 arranged between two adjacent heat exchange tubes 1 and in contact with each other, the fin 2 comprising a curved-surface portion 20.
- the heat exchanger 100 further comprises headers 3; the heat exchange tubes 1 are connected between the two headers 3, and are in fluid communication with the two headers 3.
- the heat exchange tubes 1 may be flat tubes.
- the fins 2 extend in the second direction D2, and are parallel to the heat exchange tubes 1.
- the fins 2 have a plate-like shape.
- the entire fin 2 may be the curved-surface portion 20.
- the heat exchanger in an embodiment of the present invention can, for example, increase the heat exchange area, and can also increase the turbulence of the fluid (for example, wind) by disturbing flow, so as to enhance heat exchange.
- the second direction D2 and a third direction D3 perpendicular to the first direction D1 and the second direction D2 define a reference plane, and in at least one of two mutually perpendicular cross sections perpendicular to the reference plane, the curved-surface portion 20 has a curved-line shape.
- the curved-surface portion 20 may be formed by a plurality of planar portions, for example, by a plurality of small planar portions.
- the curved-surface portion 20 of the fin 2 has a smaller curvature at one side in the third direction D3 of the heat exchanger 100 than at the other side in the third direction D3 of the heat exchanger 100; and/or the curved-surface portion 20 of the fin 2 has a smaller curvature at one side in the second direction D2 of the heat exchanger 100 than at the other side in the second direction D2 of the heat exchanger 100.
- the curvature of the curved-surface portion 20 of the fin 2 gradually increases from one side in the third direction D3 of the heat exchanger 100 to the other side in the third direction D3 of the heat exchanger 100; and/or the curvature of the curved-surface portion 20 of the fin 2 gradually increases from one side in the second direction D2 of the heat exchanger 100 to the other side in the second direction D2 of the heat exchanger 100.
- the curvature of the curved-surface portion 20 of the fin 2 is zero at said one side in the third direction D3 of the heat exchanger 100; and/or the curvature of the curved-surface portion 20 of the fin 2 is zero at said one side in the second direction D2 of the heat exchanger 100.
- adjacent fins 2 between two adjacent heat exchange tubes 1 are not connected to each other or are spaced apart at one side in the third direction D3 of the heat exchanger 100; and/or adjacent fins 2 between two adjacent heat exchange tubes 1 are not connected to each other or are spaced apart at one side in the second direction D2 of the heat exchanger 100.
- a curved surface parameter of the fin 2 varies on a single fin 2, or varies among multiple fins 2; referring to Figs. 1 and 2 , at one side in the third direction D3 of the heat exchanger 100, such as the windward side, the curvature of the fin 2 is small, and can be as small as 0, i.e. planar. From the windward side to the leeward side (the other side in the third direction D3 of the heat exchanger 100), the curvature increases. In this way, the windward side is not easily blocked by frost, so the defrost cycle is increased while facilitating water drainage.
- the windward sides of adjacent fins 2 may not be connected together, i.e. they may be spaced apart.
- the curvature at the bottom is small, and can be as small as 0, i.e. planar. This facilitates water drainage at the bottom.
- the bottoms of adjacent fins may not be connected to each other, that is, they may be spaced apart.
- the curved-surface portion 20 of the fin 2 has a corrugated shape and comprises alternately arranged strip-shaped ridges 21 and troughs 22.
- a ridge 21 when viewed from one side in the first direction D1 of the fin 2 is a trough 22 when viewed from the other side in the first direction D1 of the fin 2.
- the fin 2 is provided with an opening 25, which may be an opening formed by removing material, an opening with a flange, or a window-like opening, etc.
- an opening 25 which may be an opening formed by removing material, an opening with a flange, or a window-like opening, etc.
- mutually contacting ridges 21 of the curved-surface portions 20 of two adjacent fins 2 cross over each other.
- the mutually contacting ridges 21 of the curved-surface portions 20 of two adjacent fins 2 are arranged symmetrically with respect to a plane defined by the first direction D1 and the second direction D2.
- the curved-surface portion 20 of the fin 2 may have an I-shape, a V-shape, a W-shape, a C-shape or an L-shape, etc.
- the fins 2 may be connected to each other by means of protruding parts on the fins 2.
- the fin 2 has a corrugated pattern comprising the ridges 21 and troughs 22. Adjacent fins 2 are connected, and the ridges 21 (or troughs 22) of two adjacent fins 2 cross over each other to form channels between the adjacent fins 2, so that wind can pass through the channels and exchange heat with the fins.
- the heat exchanger 100 is placed as shown in Fig. 1 , condensed water can be discharged from the bottom of the fins 2 along the channels.
- the curved-surface portion 20 of the fin 2 has a corrugated shape, wherein the waves are periodic.
- the ridge 21 and the trough 22 may both extend in one direction, or each ridge 21 and trough 22 is composed of a plurality of linear parts.
- the wave dimensions (period size, wave height, angle, etc.) on each wave can be different.
- the wave dimensions of two adjacent fins 20 may also be different.
- Relative to the third direction, mutually contacting ridges 21 (or troughs 22) of two adjacent fins 2 are symmetrically arranged.
- the curved-surface portion 20 of the fin 2 has a bumpy shape and comprises multiple rows of discrete protrusions 23 and multiple rows of discrete depressions 24.
- Protrusions 23 of the curved-surface portions 20 of two adjacent fins 2 are in contact with each other.
- the protrusions 23 may comprise at least one of a drop-shaped protrusion, a crescent-shaped protrusion and a round protrusion.
- a protrusion 23 when viewed from one side in the first direction D1 of the fin 2 is a depression 24 when viewed from the other side in the first direction D1 of the fin 2.
- the protrusions 23 of the curved-surface portions 20 that are in contact with each other are arranged to be staggered or arranged in parallel.
- the protrusions 23 may be streamlined; for example, the protrusions 23 at the windward side are larger than the protrusions 23 at the leeward side.
- the dimensions of the protrusions 23 vary on a single fin 2, e.g. the height, size, density, etc. of the protrusions.
- the dimensions of the protrusions 23 on the plurality of fins 2 may also vary.
- the fin 2 can also be provided with another connecting member to connect the adjacent fin 2 or the heat exchange tube 1.
- a protruding curved-surface connecting member can be further formed on the fin 2.
- At least one side surface of at least a portion of the fins is provided with a connecting member for connecting the adjacent fin 2 or the heat exchange tube 1.
- the connecting member can be a protrusion further punched out on the fin 2, or a flange (L-shaped flange, O-shaped flange, etc.), a bridging piece, etc., or a combination thereof.
- the flange of the opening in Fig. 3 can also act as a connecting member.
Abstract
Description
- The present application claims the rights and interests of
Chinese patent application no. 201811632359.5 submitted to the Chinese Patent Office on December 28, 2018 - The embodiments of the present invention relate to a heat exchanger.
- In conventional heat exchangers, usually only one corrugated fin is arranged between two adjacent heat exchange tubes.
- The object of the embodiments of the present invention is to provide a heat exchanger, which can increase the heat exchange area, for example.
- According to an embodiment of the present invention, a heat exchanger is provided, comprising: a plurality of heat exchange tubes arranged in a first direction and extending in a second direction perpendicular to the first direction; and a plurality of fins arranged between two adjacent heat exchange tubes and in contact with each other, the fin comprising a curved-surface portion.
- According to an embodiment of the present invention, the second direction and a third direction perpendicular to the first direction and the second direction define a reference plane; in at least one of two mutually perpendicular cross sections perpendicular to the reference plane, the curved-surface portion has a curved-line shape.
- According to an embodiment of the present invention, the curved-surface portion is formed by a plurality of planar portions.
- According to an embodiment of the present invention, the curved-surface portion of the fin has a smaller curvature at one side in the third direction of the heat exchanger than at the other side in the third direction of the heat exchanger; and/or the curved-surface portion of the fin has a smaller curvature at one side in the second direction of the heat exchanger than at the other side in the second direction of the heat exchanger.
- According to an embodiment of the present invention, the curvature of the curved-surface portion of the fin gradually increases from one side in the third direction of the heat exchanger to the other side in the third direction of the heat exchanger; and/or the curvature of the curved-surface portion of the fin gradually increases from one side in the second direction of the heat exchanger to the other side in the second direction of the heat exchanger.
- According to an embodiment of the present invention, the curvature of the curved-surface portion of the fin is zero at said one side in the third direction of the heat exchanger; and/or the curvature of the curved-surface portion of the fin is zero at said one side in the second direction of the heat exchanger.
- According to an embodiment of the present invention, the curved-surface portion of the fin has a corrugated shape and comprises alternately arranged strip-shaped ridges and troughs.
- According to the embodiment of the present invention, mutually contacting ridges of the curved-surface portions of two adjacent fins cross over each other.
- According to an embodiment of the present invention, when viewed in the first direction, mutually contacting ridges of the curved-surface portions of two adjacent fins are arranged symmetrically with respect to a plane defined by the first direction and the second direction.
- According to an embodiment of the present invention, when viewed in the first direction, the curved-surface portion of the fin has an I-shape, a V-shape, a W-shape, a C-shape or an L-shape.
- According to an embodiment of the present invention, the curved-surface portion of the fin has a bumpy shape and comprises multiple rows of discrete protrusions and multiple rows of discrete depressions.
- According to an embodiment of the present invention, protrusions of the curved-surface portions of two adjacent fins are in contact with each other.
- According to an embodiment of the present invention, adjacent fins between two adjacent heat exchange tubes are spaced apart at one side in the third direction of the heat exchanger; and/or adjacent fins between two adjacent heat exchange tubes are spaced apart at one side in the second direction of the heat exchanger.
- The heat exchanger according to the embodiments of the present invention can increase the heat exchange area, for example.
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Fig. 1 is a schematic diagram of a heat exchanger according to an embodiment of the present invention; -
Fig. 2 is a schematic three-dimensional view of a fin according to a first embodiment of the present invention; -
Fig. 3 is a schematic three-dimensional view of a fin according to a second embodiment of the present invention; -
Fig. 4 is a schematic three-dimensional view of a fin according to a third embodiment of the present invention; -
Fig. 5 is a schematic partial enlarged three-dimensional view of a heat exchanger according to the third embodiment of the present invention; -
Fig. 6 is a schematic three-dimensional view of a fin according to a fourth embodiment of the present invention; and -
Fig. 7 is a schematic partial enlarged three-dimensional view of a heat exchanger according to the fourth embodiment of the present invention. - The present invention is explained further below in conjunction with the drawings and particular embodiments.
- Referring to
Figs. 1 to 7 , aheat exchanger 100 according to an embodiment of the present invention comprises: a plurality ofheat exchange tubes 1 arranged in a first direction D1 and extending in a second direction D2 perpendicular to the first direction D1; and a plurality offins 2 arranged between two adjacentheat exchange tubes 1 and in contact with each other, thefin 2 comprising a curved-surface portion 20. Theheat exchanger 100 further comprisesheaders 3; theheat exchange tubes 1 are connected between the twoheaders 3, and are in fluid communication with the twoheaders 3. Theheat exchange tubes 1 may be flat tubes. Thefins 2 extend in the second direction D2, and are parallel to theheat exchange tubes 1. Thefins 2 have a plate-like shape. Theentire fin 2 may be the curved-surface portion 20. The heat exchanger in an embodiment of the present invention can, for example, increase the heat exchange area, and can also increase the turbulence of the fluid (for example, wind) by disturbing flow, so as to enhance heat exchange. - Referring to
Figs. 1 to 7 , according to an embodiment of the present invention, the second direction D2 and a third direction D3 perpendicular to the first direction D1 and the second direction D2 define a reference plane, and in at least one of two mutually perpendicular cross sections perpendicular to the reference plane, the curved-surface portion 20 has a curved-line shape. The curved-surface portion 20 may be formed by a plurality of planar portions, for example, by a plurality of small planar portions. - Referring to
Figs. 1 and2 , according to an embodiment of the present invention, the curved-surface portion 20 of thefin 2 has a smaller curvature at one side in the third direction D3 of theheat exchanger 100 than at the other side in the third direction D3 of theheat exchanger 100; and/or the curved-surface portion 20 of thefin 2 has a smaller curvature at one side in the second direction D2 of theheat exchanger 100 than at the other side in the second direction D2 of theheat exchanger 100. According to an example of the present invention, the curvature of the curved-surface portion 20 of thefin 2 gradually increases from one side in the third direction D3 of theheat exchanger 100 to the other side in the third direction D3 of theheat exchanger 100; and/or the curvature of the curved-surface portion 20 of thefin 2 gradually increases from one side in the second direction D2 of theheat exchanger 100 to the other side in the second direction D2 of theheat exchanger 100. For example, the curvature of the curved-surface portion 20 of thefin 2 is zero at said one side in the third direction D3 of theheat exchanger 100; and/or the curvature of the curved-surface portion 20 of thefin 2 is zero at said one side in the second direction D2 of theheat exchanger 100. - Referring to
Figs. 1 and2 , according to an embodiment of the present invention,adjacent fins 2 between two adjacentheat exchange tubes 1 are not connected to each other or are spaced apart at one side in the third direction D3 of theheat exchanger 100; and/oradjacent fins 2 between two adjacentheat exchange tubes 1 are not connected to each other or are spaced apart at one side in the second direction D2 of theheat exchanger 100. - Referring to
Figs. 1 and2 , according to an embodiment of the present invention, a curved surface parameter of thefin 2 varies on asingle fin 2, or varies amongmultiple fins 2; referring toFigs. 1 and2 , at one side in the third direction D3 of theheat exchanger 100, such as the windward side, the curvature of thefin 2 is small, and can be as small as 0, i.e. planar. From the windward side to the leeward side (the other side in the third direction D3 of the heat exchanger 100), the curvature increases. In this way, the windward side is not easily blocked by frost, so the defrost cycle is increased while facilitating water drainage. The windward sides ofadjacent fins 2 may not be connected together, i.e. they may be spaced apart. When theheat exchange tubes 100 are placed approximately vertically (when theheat exchanger 100 is placed as shown inFig. 1 ), the curvature at the bottom (one side in the second direction D2 of the heat exchanger 100) is small, and can be as small as 0, i.e. planar. This facilitates water drainage at the bottom. The bottoms of adjacent fins may not be connected to each other, that is, they may be spaced apart. - Referring to
Figs. 2 to 5 , according to an embodiment of the present invention, the curved-surface portion 20 of thefin 2 has a corrugated shape and comprises alternately arranged strip-shaped ridges 21 andtroughs 22. Aridge 21 when viewed from one side in the first direction D1 of thefin 2 is atrough 22 when viewed from the other side in the first direction D1 of thefin 2. - Referring to
Fig. 3 , according to an embodiment of the present invention, thefin 2 is provided with anopening 25, which may be an opening formed by removing material, an opening with a flange, or a window-like opening, etc. By breaking the boundary layer when fluid is flowing, the thickness of the boundary layer is reduced, and the effect of improving heat exchange is achieved. - Referring to
Figs. 4 and5 , according to an embodiment of the present invention, mutually contactingridges 21 of the curved-surface portions 20 of twoadjacent fins 2 cross over each other. For example, when viewed in the first direction D1, the mutually contactingridges 21 of the curved-surface portions 20 of twoadjacent fins 2 are arranged symmetrically with respect to a plane defined by the first direction D1 and the second direction D2. When viewed in the first direction D1, the curved-surface portion 20 of thefin 2 may have an I-shape, a V-shape, a W-shape, a C-shape or an L-shape, etc. - Referring to
Figs. 4 and5 , according to an embodiment of the present invention, thefins 2 may be connected to each other by means of protruding parts on thefins 2. For example, thefin 2 has a corrugated pattern comprising theridges 21 andtroughs 22.Adjacent fins 2 are connected, and the ridges 21 (or troughs 22) of twoadjacent fins 2 cross over each other to form channels between theadjacent fins 2, so that wind can pass through the channels and exchange heat with the fins. When theheat exchanger 100 is placed as shown inFig. 1 , condensed water can be discharged from the bottom of thefins 2 along the channels. The curved-surface portion 20 of thefin 2 has a corrugated shape, wherein the waves are periodic. Theridge 21 and thetrough 22 may both extend in one direction, or eachridge 21 andtrough 22 is composed of a plurality of linear parts. The wave dimensions (period size, wave height, angle, etc.) on each wave can be different. On asingle fin 20, the wave dimensions of twoadjacent fins 20 may also be different. Relative to the third direction, mutually contacting ridges 21 (or troughs 22) of twoadjacent fins 2 are symmetrically arranged. - Referring to
Figs. 6 and7 , according to an embodiment of the present invention, the curved-surface portion 20 of thefin 2 has a bumpy shape and comprises multiple rows ofdiscrete protrusions 23 and multiple rows ofdiscrete depressions 24.Protrusions 23 of the curved-surface portions 20 of twoadjacent fins 2 are in contact with each other. Theprotrusions 23 may comprise at least one of a drop-shaped protrusion, a crescent-shaped protrusion and a round protrusion. Aprotrusion 23 when viewed from one side in the first direction D1 of thefin 2 is adepression 24 when viewed from the other side in the first direction D1 of thefin 2. There can be a smooth transition between the tops ofadjacent protrusions 23 anddepressions 24; that is to say, transitional surfaces connecting the tops of theprotrusions 23 and the tops of thedepressions 24 can be smooth curved surfaces. - Referring to
Figs. 6 and7 , according to an embodiment of the present invention, theprotrusions 23 of the curved-surface portions 20 that are in contact with each other are arranged to be staggered or arranged in parallel. Theprotrusions 23 may be streamlined; for example, theprotrusions 23 at the windward side are larger than theprotrusions 23 at the leeward side. The dimensions of theprotrusions 23 vary on asingle fin 2, e.g. the height, size, density, etc. of the protrusions. The dimensions of theprotrusions 23 on the plurality offins 2 may also vary. - The
fin 2 can also be provided with another connecting member to connect theadjacent fin 2 or theheat exchange tube 1. In addition, a protruding curved-surface connecting member can be further formed on thefin 2. At least one side surface of at least a portion of the fins is provided with a connecting member for connecting theadjacent fin 2 or theheat exchange tube 1. The connecting member can be a protrusion further punched out on thefin 2, or a flange (L-shaped flange, O-shaped flange, etc.), a bridging piece, etc., or a combination thereof. The flange of the opening inFig. 3 can also act as a connecting member.
Claims (13)
- A heat exchanger, comprising:a plurality of heat exchange tubes arranged in a first direction and extending in a second direction perpendicular to the first direction; anda plurality of fins arranged between two adjacent heat exchange tubes and in contact with each other, the fin comprising a curved-surface portion.
- The heat exchanger as claimed in claim 1, wherein:
the second direction and a third direction perpendicular to the first direction and the second direction define a reference plane; in at least one of two mutually perpendicular cross sections perpendicular to the reference plane, the curved-surface portion has a curved-line shape. - The heat exchanger as claimed in claim 1, wherein:
the curved-surface portion is formed by a plurality of planar portions. - The heat exchanger as claimed in claim 2, wherein:the curved-surface portion of the fin has a smaller curvature at one side in the third direction of the heat exchanger than at the other side in the third direction of the heat exchanger; and/orthe curved-surface portion of the fin has a smaller curvature at one side in the second direction of the heat exchanger than at the other side in the second direction of the heat exchanger.
- The heat exchanger as claimed in claim 2, wherein:the curvature of the curved-surface portion of the fin gradually increases from one side in the third direction of the heat exchanger to the other side in the third direction of the heat exchanger; and/orthe curvature of the curved-surface portion of the fin gradually increases from one side in the second direction of the heat exchanger to the other side in the second direction of the heat exchanger.
- The heat exchanger as claimed in claim 4 or 5, wherein:the curvature of the curved-surface portion of the fin is zero at said one side in the third direction of the heat exchanger; and/orthe curvature of the curved-surface portion of the fin is zero at said one side in the second direction of the heat exchanger.
- The heat exchanger as claimed in claim 1, wherein:
the curved-surface portion of the fin has a corrugated shape and comprises alternately arranged strip-shaped ridges and troughs. - The heat exchanger as claimed in claim 7, wherein:
mutually contacting ridges of the curved-surface portions of two adjacent fins cross over each other. - The heat exchanger as claimed in claim 7, wherein:
when viewed in the first direction, mutually contacting ridges of the curved-surface portions of two adjacent fins are arranged symmetrically with respect to a plane defined by the first direction and the second direction. - The heat exchanger as claimed in claim 7, wherein:
when viewed in the first direction, the curved-surface portion of the fin has an I-shape, a V-shape, a W-shape, a C-shape or an L-shape. - The heat exchanger as claimed in claim 1, wherein:
the curved-surface portion of the fin has a bumpy shape and comprises multiple rows of discrete protrusions and multiple rows of discrete depressions. - The heat exchanger as claimed in claim 11, wherein:
protrusions of the curved-surface portions of two adjacent fins are in contact with each other. - The heat exchanger as claimed in any one of claims 1 to 5, wherein:adjacent fins between two adjacent heat exchange tubes are spaced apart at one side in the third direction of the heat exchanger; and/oradjacent fins between two adjacent heat exchange tubes are spaced apart at one side in the second direction of the heat exchanger.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811632359.5A CN111380395A (en) | 2018-12-28 | 2018-12-28 | Heat exchanger |
PCT/CN2019/099626 WO2020134097A1 (en) | 2018-12-28 | 2019-08-07 | Heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3904808A1 true EP3904808A1 (en) | 2021-11-03 |
EP3904808A4 EP3904808A4 (en) | 2022-09-21 |
Family
ID=71129114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19902627.9A Pending EP3904808A4 (en) | 2018-12-28 | 2019-08-07 | Heat exchanger |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220074671A1 (en) |
EP (1) | EP3904808A4 (en) |
CN (1) | CN111380395A (en) |
MX (1) | MX2021007630A (en) |
WO (1) | WO2020134097A1 (en) |
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CN101846475B (en) * | 2009-03-25 | 2013-12-11 | 三花控股集团有限公司 | Fin for heat exchanger and heat exchanger with same |
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JP5421859B2 (en) * | 2010-05-24 | 2014-02-19 | サンデン株式会社 | Heat exchanger |
CN101949653B (en) * | 2010-09-29 | 2012-04-25 | 三花丹佛斯(杭州)微通道换热器有限公司 | Heat exchanger |
CN102445091B (en) * | 2010-09-29 | 2013-11-06 | 三花控股集团有限公司 | Heat exchanger |
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CN103033079A (en) * | 2013-01-11 | 2013-04-10 | 江苏常发制冷股份有限公司 | Drawing-bulging skew type fin heat exchanger |
KR102218301B1 (en) * | 2013-07-30 | 2021-02-22 | 삼성전자주식회사 | Heat exchanger and corrugated fin thereof |
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-
2018
- 2018-12-28 CN CN201811632359.5A patent/CN111380395A/en active Pending
-
2019
- 2019-08-07 US US17/418,035 patent/US20220074671A1/en active Pending
- 2019-08-07 WO PCT/CN2019/099626 patent/WO2020134097A1/en unknown
- 2019-08-07 EP EP19902627.9A patent/EP3904808A4/en active Pending
- 2019-08-07 MX MX2021007630A patent/MX2021007630A/en unknown
Also Published As
Publication number | Publication date |
---|---|
MX2021007630A (en) | 2021-08-11 |
US20220074671A1 (en) | 2022-03-10 |
CN111380395A (en) | 2020-07-07 |
EP3904808A4 (en) | 2022-09-21 |
WO2020134097A1 (en) | 2020-07-02 |
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