Classifications

• • 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
  • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
  • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
  • F28D1/0435—Combination of units extending one behind the other
• • 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
• • 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
  • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
• • 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
• • 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
  • F28F2215/02—Arrangements of fins common to different heat exchange sections, the fins being in contact with different heat exchange media
• • 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 present invention relates to a vehicle heat exchanger, and more particularly to a vehicle heat exchanger provided with a louver on a corrugated fin of a core portion of a heat exchanger.
• Patent Document 1 Japanese Patent Laid-Open No. 9 61081
• Patent Document 2 Japanese Patent Laid-Open No. 11-173784
• Patent Document 3 Japanese Patent Laid-Open No. 2000-18880
• Patent Document 4 JP 2002-350077 A
• Patent Document 5 Japanese Unexamined Patent Publication No. 2003-83691
• Patent Document 6 Japanese Unexamined Patent Application Publication No. 2005-257104
• the heat exchange efficiency is poor because in the conventional invention, it passes through the louver of the core portion of the cooled wind power radiator that has passed through the core portion of the condenser, without sufficiently flowing. There was a problem!
• the protrusion of the conventional invention contributes to the expansion of the heat radiation cross-sectional area, it has the action and effect of reliably guiding the cooling air to the louver of the core of the radiator. Such a problem also occurs when the radiator and the capacitor each have a corrugated fin independently.
• the present invention has been made to solve the above-described problems, and is intended to achieve the object.
• the vehicle heat exchanger of the present invention is a vehicle heat exchanger having a louver on a corrugated fin that is alternately stacked with each tube of the core, and the corrugated fin is disposed in the core.
• a force is provided in a state of projecting to the upstream side of the cooling air, and a projecting portion for converging the cooling air to the downstream side is provided in the projecting portion.
• the vehicle heat exchanger is disposed in a state where the core portion of the radiator and the core portion of the condenser are close to each other, and alternately with the tubes of the core portion of the radiator and the core portion of the capacitor.
• the corrugated fin heatsink is used as an integral heat exchanger, and louvers with different standing directions are formed at positions corresponding to the core part of the corrugated fin radiator and the capacitor core part, respectively.
• the projecting portion is provided between the core portion of the capacitor and the core portion of the capacitor.
• the vehicle heat exchange is a vehicle heat exchange arranged in a state where the core portion of the radiator and the core portion of the condenser are close to each other, and the corrugated fins of the core portion of the radiator and the core of the capacitor
• the corrugated fins of the portions are protruded in directions close to each other, the end portions of these both are arranged close to each other, and the protruding portions are provided on the both protruding portions, respectively.
• the protruding portion is provided so as to protrude toward a side where cooling air flows into a louver disposed on the downstream side of the protruding portion.
• the protrusion is composed of a first protrusion and a second protrusion that are arranged in a substantially inverted C shape with respect to the upstream side of the cooling air, and the first protrusion and the second protrusion
• the protrusion is symmetrical with respect to the center line extending in the width direction from the center position in the height direction of the corrugated fin, and the first protrusion and the second protrusion are straight lines having an angle intersecting each other at the center line.
• the projecting portion is configured by a first projecting portion and a second projecting portion that are disposed in a substantially inverted C shape with respect to the upstream side of the cooling air, and the first projecting portion and the second projecting portion.
• the protrusions are shaped to warp in directions away from each other.
• louvers are respectively formed on the corrugated fins of the core portion of the radiator and the corrugated fins of the core portion of the capacitor, and the end portions of both corrugated fins are projected in a direction approaching each other. And the capacitor are fixed together.
• the corrugated fins have different fin pitches or fin heights.
• the corrugated fin is used as a core in the heat exchanger for a vehicle provided with a louver on a corrugated fin laminated alternately with each tube of the core.
• the cooling air can be reliably guided to the louver of the core. Therefore, the cooling performance of the vehicle heat exchanger can be improved.
• the heat exchanger for the vehicle is disposed in a state where the core portion of the radiator and the core portion of the capacitor are close to each other, and the tubes of the core portion of the radiator and the core portion of the capacitor are alternately laminated.
• the corrugated fin radiator is used as an integral heat exchanger ⁇ , and louvers with different standing directions are formed at positions corresponding to the core portion of the corrugated fin radiator and the capacitor core portion, respectively. Since the protrusion is provided between the core portion of the capacitor and the core portion of the capacitor, the cooling performance of the radiator can be improved.
• the vehicle heat exchanger is a vehicle heat exchanger arranged in a state where the core portion of the radiator and the core portion of the condenser are close to each other, and the corrugated fin and the core of the capacitor are disposed in the core portion of the radiator.
• the corrugated fins of the two parts are projected in directions close to each other, the end parts of these two parts are arranged close to each other, and the protrusions are provided on the two protruding parts, respectively, so that particularly the cooling performance of the radiator can be improved.
• the protruding part of the corrugated fin can be protected.
• the protrusion is provided so as to protrude toward the side where the cooling air flows into the louver disposed on the downstream side of the protrusion, the protrusion is applied to the protrusion while the cooling air is peeled off. Can guide to the bar.
• the protrusion is composed of a first protrusion and a second protrusion that are arranged in a substantially inverted C shape with respect to the upstream side of the cooling air, and the first protrusion and the second protrusion.
• the protrusion is symmetrical with respect to the center line extending in the width direction from the center position in the height direction of the corrugated fin, and the first protrusion and the second protrusion have an angle that intersects the center line with each other. Since the straight portion is provided, the cooling air can be favorably converged to the downstream side with a simple-shaped protrusion, which is preferable.
• the projecting portion is constituted by a first projecting portion and a second projecting portion that are disposed in a substantially inverted C shape with respect to the upstream side of the cooling air, and the first projecting portion and the second projecting portion. Since the parts are warped in directions away from each other, the cooling air can be converged to the downstream side, and at the same time, the torsional rigidity of the corrugated fins can be improved.
• louvers are respectively formed on the corrugated fins of the core portion of the radiator and the corrugated fins of the core portion of the capacitor, and the end portions of both corrugated fins are projected in a direction close to each other. Since the capacitors are integrally fixed, it is possible to improve the heat dissipation performance of the radiator and capacitor, prevent the adverse effects of heat transfer between the radiator and the capacitor, and protect the protruding ends of both corrugated fins.
• the fin pitch or fin height of both corrugated fins are different from each other, it is possible to form a fin pitch and fin height according to the heat radiation specification requirements of the radiator and the capacitor, respectively, which is preferable.
• FIG. 1 is a perspective view of a vehicle heat exchanger according to a first embodiment of the present invention.
• FIG. 2 is a front view of the vehicle heat exchanger according to the first embodiment of the present invention.
• FIG. 3 is an end view taken along the line S3-S3 in FIG. 1, and is a view for explaining a core portion.
• FIG. 4 is an end view taken along the line S4—S4 of FIG.
• FIG. 5 is an end view taken along line S5—S5 of FIG.
• FIG. 6 is a perspective view of a corrugated fin test model according to the first embodiment.
• FIG. 7 is a diagram for explaining a dimple part and a heat shield part according to the first embodiment.
• FIG. 8 is a diagram for explaining the operation of the corrugated fin of the first embodiment.
• FIG. 9 is a diagram for explaining the operation of the corrugated fin according to the first embodiment.
• FIG. 10 is a perspective view of a test model of corrugated fin A1 to be compared with the corrugated fin of Example 1 (half is omitted because it is symmetrical).
• FIG. 11 is a perspective view of a test model of corrugated fin A2 to be compared with the corrugated fin of Example 1 (half is omitted because it is symmetrical).
• FIG. 12 is a perspective view of a test model of corrugated fin A3 to be compared with the corrugated fin of Example 1.
• FIG. 13 is a perspective view of a test model of corrugated fin A4 to be compared with the corrugated fin of Example 1.
• FIG. 14 is a perspective view of a test model of corrugated fin A5 to be compared with the corrugated fin of Example 1.
• FIG. 15 is a perspective view of a test model of corrugated fin A6 to be compared with the corrugated fin of Example 1 (half is omitted because it is symmetrical).
• FIG. 16 is a perspective view of a test model of corrugated fin A7 to be compared with the corrugated fin of Example 1.
• FIG. 17 is a view showing test results of corrugated fins of Example 1.
• FIG. 18 is a diagram illustrating a corrugated fin according to the second embodiment of the present invention.
• FIG. 19 is a cross-sectional view taken along the line S19—S19 in FIG.
• FIG. 20 is a diagram illustrating a corrugated fin according to Example 3 of the present invention.
• FIG. 21 is a cross-sectional view taken along line S21—S21 in FIG.
• FIG. 22 is a diagram illustrating a fixing structure for a radiator and a capacitor according to the third embodiment.
• FIG. 23 is a diagram illustrating a fixing structure for a radiator and a capacitor according to the third embodiment.
• FIG. 24 is a diagram illustrating a corrugated fin according to Example 4 of the present invention.
• FIG. 25 is a diagram illustrating a corrugated fin according to another embodiment.
• FIG. 26 is a diagram illustrating a corrugated fin according to another embodiment.
• Example 1 will be described.
• FIG. 1 is a perspective view of a vehicle heat exchanger according to a first embodiment of the present invention
• FIG. 2 is a front view of the same
• FIG. 3 is an end view taken along line S3-S3 in FIG.
• FIG. 4 is an end view taken along line S4—S4 in FIG. 3
• FIG. 5 is an end view taken along line S5—S5 in FIG. 3
• FIG. 6 is a perspective view of a corrugated fin test model according to the first embodiment.
• 7 is a diagram for explaining the dimple portion and the heat shield portion of the first embodiment
• FIGS. 8 and 9 are diagrams for explaining the operation.
• FIGS. 10 to 16 show corrugated fins A1 to be compared with the corrugated fins of the first embodiment.
• FIG. 17 is a perspective view of a test model of A7, and FIG. 17 is a diagram showing test results.
• the vehicle heat exchanger according to the first embodiment has an integrated heat exchanger consisting of a radiator 1 and a condenser 2 arranged on the front side of the heat exchanger. Is adopted.
• the radiator 1 employs a so-called parallel flow type radiator in which a pair of tanks lb, lc are disposed on the left and right sides of the core portion la.
• the core portion la of the radiator 1 is disposed between a plurality of tubes Id each having both ends inserted and fixed in corresponding tanks lb and lc, and adjacent tubes Id, and will be described later.
• the corrugated fin 3 is used in common with the core 2a of the capacitor 2.
• the upper and lower ends of the tank lb, lc of the radiator 1 are provided with vehicle mounting pins le, le for fixing the vehicle heat exchanger to the vehicle via the radiator core support.
• An input port P1 is provided on the rear surface of lb, while an output port P2 is provided on the rear surface of the tank lc.
• the capacitor 2 is provided with a pair of tanks 2b and 2c on both the left and right sides of the core portion 2a.
• the core 2a of the capacitor 2 is composed of a plurality of tubes 2d inserted and fixed to the corresponding tanks 2b and 2c at both ends, and the corrugated fin 3 described above disposed between adjacent tubes 2d. It has been.
• the tanks 2b and 2c of the capacitor 2 are divided into chambers R1 to R4 by a partition plate S1, and the tank 2b includes a connector 2e communicating with the chamber R1 and a chamber 2l.
• a connecting pipe 2f communicating with 4 is provided, and a tank 2c is provided with a receiver tank 2i communicating with both chamber R2 and chamber R3 via connecting pipes 2g and 2h.
• a pair of reinforcements 4 and 5 are threaded and fixed to the upper and lower ends of the tanks lb and lc of the radiator 1 and the tanks 2b and 2c of the condenser 2 so that they are integrated with each other. Consolidated and fixed.
• the corrugated fins 3 of the first embodiment have different standing directions at positions corresponding to the core portion la of the radiator 1 and the core portion 2a of the capacitor 2, respectively.
• the louvers 3a and 3b are formed!
• the shape of the cooling air converged from the front side (upstream side of the cooling air) to the rear side (downstream side of the cooling air) on the core portion la side of the radiator 1.
• Dimple portions 3c and 3d corresponding to protrusions are provided.
• the dimple portion 3c is provided so as to protrude toward the side where the cooling air flows into the louver 3b (see FIG. 9).
• the dimple portions 3c and 3d are arranged symmetrically with respect to the center line Z1 extending in the width direction from the center position in the height direction of the corrugated fin 3, and each of the dimple portions 3c and 3d is a straight line portion 3e.
• the straight portion 3e is provided with a semicircular curved portion 3f formed at both ends of the straight portion 3e so as to form a substantially U-shaped cross section and to protrude toward the side where the cooling air flows into the louver 3b. (See Figure 9).
• the dimple portions 3c, 3d more precisely, the linear portions 3e of the dimple portions 3c, 3d are arranged at a predetermined angle ⁇ that intersects with each other at the center line Z1.
• the angle ⁇ is preferably around 90 °.
• the dimple portions 3c and 3d are formed together with the louvers 3a and 3b when the corrugated fin 3 is manufactured, or are pressed in advance before forming the corrugated fin 3 into a corrugated shape. It is formed.
• the height H (see FIG. 5), width W, length L, and angle ⁇ of the dimple portions 3c and 3d can be set as appropriate.
• the heat shielding part 3i may have a shape other than the first embodiment, and may not necessarily be provided depending on the necessity of the heat shielding.
• the constituent members of the vehicle heat exchanger are all made of aluminum, and a clad layer (brazing sheet) that also serves as a brazing filler metal is provided on at least one side of the joints of the constituent members. These are preliminarily assembled and then heat-treated in a heating furnace (not shown) so that the joint portions of the constituent members are brazed and fixed.
• the flow medium of about 70 ° C flowing into the chamber R1 of the tank 2b from the compressor side (not shown) through the connector 2e of the capacitor 2 is respectively corresponding to the chambers R1 and R2 of the core 2a.
• the distribution medium in the chamber R4 functions as a capacitor by being discharged to the evaporator side (not shown) via the connecting pipe 2f and the connector 2e.
• the cooling air circulated from the front of the vehicle heat exchanger is a louver 3a corresponding to the core portion 2a of the condenser 2 of the corrugated fin 3.
• the air flows again along the outside of the dimple portions 3c and 3d and is divided into the second flow path X2 passing through the louver 3b corresponding to the core portion la of the radiator 1 and thereby cooling.
• the wind can be reliably circulated from the louver 3a to the louver 3b without escaping in the width direction, and the heat dissipation performance of the corrugated fin 3 can be improved.
• the heat shut-off part 3i When the heat shut-off part 3i is provided, the heat shut-off part 3i is provided on the condenser 2 side with a low temperature of the circulation medium arranged on the upstream side of the cooling air, and the dimple parts 3c and 3d are provided with a high temperature of the flow medium. It is preferable to provide on one side.
• FIG. 17 shows the result of the heat radiation test of the corrugated fin 3 of Example 1 and the corrugated fins A1 to A7 having various shapes shown in FIGS.
• the corrugated fin A2 has a general conventional shape.
• the corrugated fin 3 of the present invention is different from the corrugated fins A1 to A7. It was proved that the temperature of the outlet X2 was the highest and the heat dissipation performance was excellent.
• the core portion la of the radiator 1 and the core portion 2a of the condenser 2 are disposed in close proximity, and the core portion of the radiator 1 is disposed.
• La and the condenser 2 core tube 2a and the corrugated fins 1 Louvers 3a and 3b whose rising directions are different from each other are formed at positions corresponding to the core part 2a, and the protrusions 3c and 3d are provided between the core part la of the radiator 1 of the corrugated fin 3 and the core part 2a of the capacitor 2. Therefore, the cooling air can be surely guided to the louver 3b of the core portion la, and in particular, the cooling performance of the radiator 1 can be improved.
• the protrusions 3c and 3d are provided so as to protrude toward the side where the cooling air flows into the louver 3b disposed on the downstream side of the protrusions 3c and 3d, the cooling air is supplied to the protrusions 3c and 3d.
• the force that does not peel off when applied to the air can guide the louver 3b well.
• the projecting portion is constituted by a first projecting portion 3c and a second projecting portion 3d which are arranged in a substantially inverted U shape with respect to the upstream side of the cooling air, and the first projecting portion 3c and the second projecting portion 3d are arranged.
• the protrusion 3d has a symmetrical shape with respect to the center line Z1 extending in the height direction of the corrugated fin in the height direction, and intersects the first protrusion 3c and the second protrusion 3d at the center line Z1. Since the linear portion 3e having an angle is provided, the cooling air can be favorably converged to the downstream side with a simple-shaped protrusion, which is preferable.
• the first protrusion 3c and the second protrusion 3d are arranged, and the upper end 'lower end force of the bent portion of the corrugated fin 3 overlaps the core 2a side of the capacitor 2 of the corrugated fin 3. Since the openings 3g and 3h that are notched in the direction of the center line Z1 are formed to the depth to be formed, thereby forming the heat shield 3i that connects the corrugated fins 3 in a zigzag shape in the vertical direction, Cooling performance can be improved and the distribution medium on the radiator 1 side Since it is possible to suppress the body temperature from being transmitted to the capacitor 2 side, a decrease in the cooling performance of the capacitor 2 can be suppressed.
• FIG. 18 is a diagram for explaining the corrugated fin according to the second embodiment of the present invention.
• the core portion la of the radiator 1 includes a single corrugated fin 20, and the corrugated fin 20 of the core portion la of the radiator 1 is upstream of the cooling air.
• the first protruding portion 21 and the second protruding portion 22 are formed on the protruding portion so as to protrude from the core portion la, and disposed in a substantially inverted C shape with respect to the upstream side of the cooling air. This is different from Example 1.
• the first protrusion 21 and the second protrusion 22 are each composed of two dimple parts 23, 24, and each dimple part 23, 24 has cooling air ( It is provided in a quadrangular pyramid shape that protrudes toward the inflow side.
• the angle formed by the line connecting the first protrusion 21 and the second protrusion 22 is
• 8 90 °.
• the first projecting portion 21 and the second projecting portion 22 may be composed of three or more dimple portions, or may be composed of the first projecting portion 3c and the second projecting portion 3d described in the first embodiment. Also good.
• each dimple portion 37, 38, the projecting dimension of the corrugated fin 31, and the like can be set as appropriate.
• the cooling air can be converged downstream by the first protrusion 21 and the second protrusion 22 to be surely guided to the louver 3b.
• the heat exchange efficiency of 20 can be improved and the cooling performance of Rajeta 1 can be improved.
• the projecting portion of the corrugated fin 20 can increase the heat radiation area, and can guide the cooling air to the louver 3b.
• Example 3 Hereinafter, Example 3 will be described.
• FIG. 20 is a diagram illustrating the corrugated fin according to the third embodiment of the present invention.
• FIGS. 22 and 23 are perspective views illustrating the fixing structure of the radiator and the capacitor.
• the core portion 2a of the capacitor 2 includes a single corrugated fin 30, and the core portion 2a of the capacitor 2
• the corrugated fin 30 protrudes from the core portion 2a on the downstream side of the cooling air, and its end 30a is disposed close to the end 20a of the corrugated fin 20, and the first protruding portion 21 and the protruding portion 21 and
• the second embodiment is different from the second embodiment in that a first protrusion 31 and a second protrusion 32 having the same shape as the second protrusion 22 are formed.
• the dimple portions 22, 23, 33, and 34 have the same shape, but may be different from each other.
• the size of the gap between the two end portions 20a and 30a can be set as appropriate.
• the vehicle heat exchanger of the third embodiment protrudes forward in a substantially L shape with the upper and lower sides of the tanks lb, 1c of the radiator 1 being opened upward.
• the receiving side bracket B1 is formed respectively, while the insertion side brackets B2 projecting sideways are formed above and below the tanks 2b, 2c of the capacitor 2, respectively.
• the heat radiation area can be increased by the protruding portions of the corrugated fins 20, 30 protruding from the core portions la, 2a, and the cooling performance of the radiator 1 and the capacitor 2 can be improved. The adverse effect of heat transfer of 1 and capacitor 2 can be prevented.
• first and second protrusions 21 and 22 and the first and second protrusions 31 and 32 cooperate to converge the cooling air to the downstream side and reliably guide the air to the louver 3b. .
• both corrugated fins 20,30 are protruded in the proximity direction, and the end portions 20a, 30a are arranged close to each other, while there is a risk that the peripheral members and the like may come into contact and buckle. Therefore, the end portions 20a and 30a can be protected.
• the corrugated fin 20 and the corrugated fin 30 may have different fin pitches and heights, and can be set as appropriate according to the respective heat dissipation performance requirements.
• FIG. 24 is a view for explaining a corrugated fin according to the fourth embodiment of the present invention.
• the first projecting portion is formed in a shape along a direction away from each other.
• the difference between the first embodiment is that the first protrusion 41 and the second protrusion 42 are employed.
• the cooling air can be efficiently converged to the downstream side by the first protrusion 41 and the second protrusion 42 as in the first embodiment, and at the same time, the torsional rigidity of the corrugated fin 3 can be improved.
• louvers and tubes can be set as appropriate.
• the cooling air may be further returned by the louver 53 via the return louver 52 on the downstream side of the louver 3b.
• the heat exchanger for a vehicle of the present invention flows through the core portion by the cooling air hitting the corrugated fins. As long as the cooling medium is cooled, it can be applied to various heat exchangers for vehicles such as automobiles.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Geometry (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
• Air-Conditioning For Vehicles (AREA)

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Citations (4)

• 2007
  • 2007-01-30 US US12/162,887 patent/US20090301696A1/en not_active Abandoned
  • 2007-01-30 EP EP07707712A patent/EP1985957A1/en not_active Withdrawn
  • 2007-01-30 CN CNA2007800042854A patent/CN101379360A/zh active Pending
  • 2007-01-30 WO PCT/JP2007/051494 patent/WO2007088850A1/ja active Application Filing

Patent Citations (4)

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