ELECTRONIC DEVICE, CONTROL PROGRAM, AND CONTROL METHOD

• Main Authors: TAJIMA HIRONORI, KOBAYASHI SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 09.01.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CALCULATING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PHYSICS; PRINTED CIRCUITS; SEMICONDUCTOR DEVICES

To reduce power consumption for cooling.SOLUTION: Fans 11, 12, 13 are arranged in line to cool multiple areas in a housing. A processing unit 18 acquires component information D1 which indicates components 14, 15, 16 mounted on each of the areas and quantity of heat generated by the components 14, 15, 16, and load information D2 indicating loads of the components 14, 15, 16. The processing unit 18 evaluates, for each fan, a first cooling effect of the fan in a current direction and a second cooling effect of the fan to be obtained when facing different areas from the area the fan faces, on the basis of the component information D1 and the load information D2. The processing unit 18 selects the fan 11 of which the second cooling effect is higher than the first cooling effect, to direct the fan 11 to face another area, and reduces a rotation speed of the fan 12 facing the other area.SELECTED DRAWING: Figure 1 【課題】冷却のための消費電力を低減すること。【解決手段】ファン１１，１２，１３は、一列に並べて配置され、筐体内の複数のエリアを冷却する。処理部１８は、複数のエリアそれぞれに搭載された部品１４，１５，１６および部品１４，１５，１６の発熱量を示す部品情報Ｄ１と、部品１４，１５，１６の負荷を示す負荷情報Ｄ２とを取得する。処理部１８は、部品情報Ｄ１および負荷情報Ｄ２に基づいて、現在の向きでのファンの第１の冷却効果と当該ファンが向けられたエリアとは異なる他のエリアに当該ファンを向けた場合の当該ファンの第２の冷却効果とをファン毎に評価する。処理部１８は、第２の冷却効果が第１の冷却効果よりも高いファン１１を選択し、ファン１１を他のエリアに向け、他のエリアに向けられたファン１２の回転数を下げる。【選択図】図１