JP2008205421A5 - - Google Patents

Claims (19)

  At least one fin comprising a base plate portion to which at least one heat generating component is thermally connected, and a plurality of fins arranged in parallel at a predetermined angle along the longitudinal direction of the base plate portion and thermally connected to the base plate Each of the at least one fin portion and the cooling portion so that the cooling air is decelerated between the fins in each of the at least one fin portion and flows substantially uniformly. The heat exchanger provided with the baffle plate part and partition plate part which guide | induc the flow of business air, and the discharge port which discharges the air for cooling.   At least one fin portion composed of a plurality of fins, an inlet portion for sending cooling air to each of the at least one fin portion, and cooling air decelerates between the fins in each of the at least one fin portion. A heat exchanger comprising a baffle plate portion and a partition plate portion for guiding the flow of the cooling air so as to flow substantially uniformly, and a discharge port for discharging the cooling air.   A base plate portion to which at least one heat generating component is thermally connected, and at least two fins arranged in parallel at a predetermined angle along a longitudinal direction of the base plate portion and thermally connected to the base plate A fin group arranged to form a structure in which the fin portion decelerates the flow velocity of the cooling air flowing between the fins, an inlet portion for sending cooling air to each of the at least two fin portions, and cooling air The fin group is configured to guide the flow of the cooling air so that the cooling air decelerates between the fins in each of the at least two fin portions and flows substantially uniformly. Heat exchanger in place.   The heat exchanger according to claim 3, wherein the structure for reducing the flow rate of the cooling air is formed in a C shape so that the structure gradually narrows from the inlet portion toward the discharge port.   The fin group is arranged in a square shape so as to become gradually narrower from the inlet portion toward the discharge port, and at least another pair arranged in the longitudinal direction of the base plate on the discharge port side of the fin group. The heat exchanger according to claim 3, further comprising a fin.   The at least one fin portion is composed of one fin portion, the partition plate portion is disposed at both side end portions of the fin portion, and the baffle plate portion is disposed in the vicinity of the fins at the nearest end portion and the farthest end portion. The heat exchanger according to claim 1 or 2, which is arranged.   The at least one fin portion is composed of a plurality of fin portions arranged along the width direction of the base plate, and the partition plate portions are arranged between the fin portions and at both outer end portions, and the baffle plate portions The heat exchanger according to claim 1 or 2, wherein the heat exchanger is disposed in the vicinity of the fin at the nearest end and the farthest end of each fin portion.   The cooling air sent to the heat sink at high speed from the inlet flows along a path formed between one end of the plurality of fins and the partition plate portion along the partition plate portion, and the baffle plate And is guided to the partition plate portion, decelerates, flows between the fins, flows along a passage formed between the other end of the plurality of fins and the partition plate portion, and is discharged from the discharge port. The heat exchanger according to claim 1, 2, 6, or 7.   The fin interval, the fin length, and the flow velocity flowing between the fins are set so that the difference between the temperature of the fin surface to which the heat of the heat generating component is transferred and the temperature of the cooling air at the discharge port becomes small. The heat exchanger according to 1, 2, 6, 7, or 8.   The cooling air flowing between the fins is decelerated so that the temperature boundary layers of the adjacent fins formed by the cooling air flowing between the fins overlap each other. The described heat exchanger.   The distance between the fins is d (mm), the fin length is L (m), and the flow velocity flowing between the fins is v (m / s), and d ≦ 9.4√ (L / v) × 3. The heat exchanger according to any one of 1 to 10.   The distance between the fins is d (mm), the fin length is L (m), and the flow velocity flowing between the fins is v (m / s), and d ≦ 9.4√ (L / v) × 2. The heat exchanger according to any one of 1 to 10.   From the first aspect, d ≦ 9.4√ (L / v) where d (mm) is the fin interval, L (m) is the fin length, and v (m / s) is the flow velocity flowing between the fins. The heat exchanger according to any one of 10.   The heat exchanger according to any one of claims 1 to 13, wherein a flow rate of cooling air flowing through each of the plurality of fin portions and / or a flow rate of cooling air flowing between the fins are different.   The heat exchanger according to any one of claims 1 to 14, wherein the heat exchanger is a natural air-cooled heat exchanger.   The heat exchanger according to any one of claims 1 to 14, wherein the heat exchanger is a water-cooled heat exchanger.   A base plate portion to which at least one heat-generating component is thermally connected; at least one fin portion that is arranged along a longitudinal direction of the base plate portion and is thermally connected to the base plate; and a fin And at least one baffle plate portion arranged to form a structure for reducing the flow velocity of the cooling air flowing between them, an inlet portion for sending cooling air to the at least one fin portion, and discharging the cooling air The fin group and the baffle plate portion so as to induce the flow of the cooling air so that the cooling air is decelerated between the fins of the at least one fin portion and flows substantially uniformly. Is arranged heat exchanger.   The structure for decelerating the flow velocity of the cooling air is arranged so that a distance between the fin portion and the baffle plate portion gradually decreases from the inlet portion toward the discharge port. Heat exchanger.   The heat exchanger according to claim 18, wherein a baffle plate portion is further disposed so as to cover the fin portion.