摘要:
Disclosed herein is a sound absorbing system used for an electronic device that has enhanced noise reduction capabilities, while maintaining the cooling performance of the device and without increasing the size of the device. A disk array has multiple fans installed on each of the right and left sides of its front section. A frame that houses a sound absorbing system is placed in the middle of an airflow path through which air passes from the fans. Two sound absorbers are arranged inside the frame such that each of the sound absorbers faces the right-side or left-side fans. Airflow paths through which air passes from the fans are located in the space between the two sound absorbers. The airflow paths are partitioned by an acoustic board such that each of the airflow paths does not have parallel side faces. The frame, the sound absorbers, the acoustic board, and the airflow paths constitute the sound absorbing system. The sound absorbers and the acoustic board are made of sound absorbing materials such as glass wool, urethane foam, and the like. The sound absorbers and the acoustic board are arranged such that they prevent the fans from being seen from the outside of the sound absorbing system.
摘要:
Disclosed herein is a sound absorbing system used for an electronic device that has enhanced noise reduction capabilities, while maintaining the cooling performance of the device and without increasing the size of the device.A disk array 1 has multiple fans 3 installed on each of the right and left sides of its front section. A frame 4 that houses a sound absorbing system is placed in the middle of an airflow path through which air passes from the fans 3. Two sound absorbers 5 are arranged inside the frame 4 such that each of the sound absorbers 5 faces the right-side or left-side fans 3. Airflow paths 7 through which air passes from the fans 3 are located in the space between the two sound absorbers 5. The airflow paths 7 are partitioned by an acoustic board 6 such that each of the airflow paths 7 does not have parallel side faces. The frame 4, the sound absorbers 5, the acoustic board 6, and the airflow paths 7 constitute the sound absorbing system. The sound absorbers 5 and the acoustic board 6 are made of sound absorbing materials such as glass wool, urethane foam, and the like. The sound absorbers 5 and the acoustic board 6 are arranged such that they prevent the fans 3 from being seen from the outside of the sound absorbing system.
摘要:
A storage device having a plurality of recording devices in which a decrease in vibrations from the recording devices can be achieved with a small number of parts. A storage device having a plurality of recording devices mounted therein includes a handle for inserting and withdrawing the recording device into and out of the storage device. Two holding members each include a mounting portion where the recording device is mounted and a frame extending from the mounting portion to the handle. Two protrusions are formed to extend inwardly of a region surrounded by the recording device, the handle, and the two frames. A restriction plate is disposed so as to overlap the respective surfaces of the two protrusions; and a viscoelastic body is disposed at the overlapping portion for joining the two protrusions and the restriction plate to one another.
摘要:
In a storage device provided with a plurality of recording devices, the vibrations which propagate to the recording devices through a board can be reduced with a small number of parts. A storage device equipped with a plurality of recording devices having: a canister equipped with the recording device; a board equipped with a circuit that transmits a signal to the recording device or processes a signal; a chassis equipped with the board and the canister; a plate-like piezoelectric element attached to part of the board; a vibration detection sensor attached to part of the board; and a control unit that controls a drive signal given to the piezoelectric element in accordance with a sensor output of the vibration detection sensor is proposed.
摘要:
A casing, including an inlet through which air can flow in and outlets through which air can flow out, is internally provided with: an air passage through which the inlet and the outlets are connected to each other; and an ion generation device for discharging ions into the air passage. The casing has an inclined wind guide surface and an attachment surface that forms an acute angle with the wind guide surface. The inlet is provided in a region of the wind guide surface, the distance of which from the attachment surface is shorter, the first outlet is provided in a region of the wind guide surface, the distance of which from the attachment surface is longer, and the second outlet is provided in a region of the casing, extending to the attachment surface from an end of the wind guide surface at which the first outlet is provided.
摘要:
A light emitting device, includes: a casing; a window; a semiconductor laser provided in an enclosed space formed by the casing and the window; and a fluorescent material in a form of any one of a crystal and glass, the fluorescent material being provided in the enclosed space, the fluorescent material absorbing laser light emitted from the semiconductor laser and emitting secondary light having a wavelength different from a wavelength of the laser light, and the secondary light being taken out through the window.
摘要:
A first meter cluster panel and a second meter cluster panel are disposed on an instrument panel of a vehicle such that the first meter cluster panel and the second meter cluster panel have respective centers of display disposed substantially coaxially with each other. The first meter cluster panel is disposed near a boundary line at a position deeper than that of the second meter cluster panel as viewed by a driver who is directing his or her line of sight from an eye range in the forward direction of the vehicle. The first meter cluster panel displays information that is visually recognized outside of a steering wheel. The second meter cluster panel displays information that is visually recognized inside the steering wheel when the driver directs his or her line of sight from the eye range in the forward direction of the vehicle.
摘要:
A light-emitting apparatus employing a GaN-based semiconductor. The light-emitting apparatus comprises an n-type clad layer (124); an active layer (129) including an n-type first barrier layer (126), well layers (128), and second barrier layers (130); a p-type block layer (132); and a p-type clad layer (134). By setting the band gap energy Egb of the p-type block layer (132), the band gap energy Eg2 of the second barrier layers (130), the band gap energy Eg1 of the first barrier layer (126), and the band gap energy Egc of the n-type and the p-type clad layers such that the relationship Egb>Eg2>Eg1≧Egc is satisfied; the carriers can be efficiently confined; and the intensity of the light emission can be increased.
摘要:
The invention proposes a cooling structure of a storage apparatus in which cooling air in a chassis is stirred or evened out without affecting the layout in the chassis. The storage apparatus includes fan devices that introduce outside air to heat areas generated from heat generating members arranged on a logical substrate which constitutes a controller unit section for inputting and outputting a data to and from a hard disk drive in response to a data I/O request from a host system, cool the heat areas by stirring the cooling air therein or by causing the cooling air to blow evenly thereon, and discharge the outside air passed through the heat areas to the outside.
摘要:
The invention proposes a cooling structure of a storage apparatus in which cooling air in a chassis is stirred or evened out without affecting the layout in the chassis. The storage apparatus includes fan devices that introduce outside air to heat areas generated from heat generating members arranged on a logical substrate which constitutes a controller unit section for inputting and outputting a data to and from a hard disk drive in response to a data I/O request from a host system, cool the heat areas by stirring the cooling air therein or by causing the cooling air to blow evenly thereon, and discharge the outside air passed through the heat areas to the outside.