摘要:
The storage case has a structure in which a sample storage case (S) contained in a storage case is cooled and held at a low temperature by a Stirling refrigerator. A detection element is disposed in a room-temperature area of the storage case. The chemical or physical property of the detection element varies when a contaminant adheres to the detection element. Entrance of a contaminant into the storage case can be checked by contactlessly checking the detection element from the outside of the storage case. The storage case includes a server for receiving the result of the check from the detection device, storing the result, and setting up connection via a communication line to at least two out of a terminal operable by the forwarder, a terminal operable by the carrier, and a terminal operable by the recipient to transmit the result to the two.
摘要:
An optical pickup device comprises a semiconductor laser that causes outgoing of laser beam used for reproduction and recording of information on an optical disk, and an objective lens that conducts the laser beam outgoing from the semiconductor laser to the optical disk. The objective lens is driven by a yoke, a focusing coil, a tracking coil, etc. These elements are accommodated in a pickup housing. First and second bearing portions supporting the pickup housing to make the same movable are attached to the pickup housing and arranged on both sides with the objective lens therebetween. The yoke is thermally connected to the first bearing portion positioned on an opposite side of the yoke to the semiconductor laser.
摘要:
In a recording disk apparatus, a pickup element and an electric element for at lease one of supplying an electric power to at least one of a recording disk driving motor and the pickup and processing a signal to be recorded into the recording disk and/or the signal read from the recording disk are prevented from overlapping each other as seen in a thickness direction of the recording disk to restrain a thermal conduction between the pickup element and the electric element so that a thermal conduction restraining area extending along an imaginary directional line crossing an imaginary straight line passing the pickup element and the electric element as seen in the thickness direction is formed between the pickup element and the electric element as seen in the thickness direction.
摘要:
This torque limiter is configured from a ring body and a spring-form part provided in the ring body. The ring body comprises a band-form metal plate and is bent approximately into a C-shape along the circumferential direction of a motor shaft and a lock holder. The spring-form part is formed so as to be capable of radial elastic deformation. The spring-form part is configured from main protrusions arranged in a compressed state between the motor shaft and the lock holder, and from sub-protrusions arranged in a non-compressed state. Further, grease is stored in a part or all of the concavities formed by the main protrusions and the sub-protrusions.
摘要:
An electronic apparatus, such as a blade server or the like, has a cooling system for efficiently cooling a plurality of heat generating semiconductor devices, such as a CPU, mounted on blades which is freely put on and taken off. The cooling system includes a thermosiphon which transfers heat from devices having relatively high heat generation, such as CPU or the like, to the outside of the apparatus, heat pipes which transfer heat of devices having relatively low heat generation to the thermosiphon, a thermal highway which is thermally coupled to the thermosiphon by the mounting of blades into a housing and collects and transfers the heat from the thermosiphon and the heat pipes, and a condenser which transfers the heat collected and transferred by the thermal highway outside a housing.
摘要:
A server system with a cooling ability that can cope with an increase in the amount of heat generated by a CPU of a server module detachably mounted on a blade server. The server module includes an enclosure accommodating therein a motherboard on which a CPU, memory, and the like are mounted, and part of a boil cooling device for cooling heat generated by the CPU. A fan accommodated in a fan module is adapted to blow air into the server module through an opening of the server module enclosure. The boil cooling device includes a first heat transmission member disposed in the server module enclosure, a second heat transmission member disposed outside the server module enclosure, and a plurality of pipes connecting them. The first heat transmission member is a box body with an internal space for hermetically sealing a refrigerant therein, one external planar face of which is thermally connected to the CPU and the other external planar face of which is provided with a heat sink. The second heat transmission member is disposed in the fan module unit, and a heat radiation member provided for the pipes forms an airflow passage together with the motherboard.
摘要:
It is an object to provide a cooling device for optimally cooling a semiconductor device on a CPU blade which is detachable with respect to an electronic apparatus using the cooling device with compact structure for reducing power consumption. A cooling device for cooling a semiconductor device disposed on an electronic circuit substrate in a casing of an electronic apparatus, comprising a first cooling unit comprising a first heat absorbing portion and a first heat releasing portion, and a second cooling unit comprising a second heat absorbing portion and a second heat releasing portion, wherein the first heat absorbing portion is disposed in contact with the semiconductor device, the second heat absorbing portion is detachably disposed in contact with the first heat releasing portion, a phase-change refrigerant is contained in the first cooling unit, and the second heat releasing portion is disposed outside the casing.
摘要:
An electronic device comprises: a housing; blades each of which is detachable from the housing and on each of which at least CPU and a memory are mounted; first cooling devices each of that takes out heat generated in the blade outside the blade, each of said first cooling device having a heat release part in the form of an elongate column to be fixed to the blade; second cooling devices fixed to the housing to discharge heat transported from the first cooling devices outside the housing, each of said second cooling devices having a heat absorbing part, which is capable of containing the heat release part of the first cooling device; medium reservoirs each of which is put in fluid communication with a clearance, which is formed between the heat release part and the heat absorbing part when the heat release part is inserted into the heat absorbing part; a heat conducting medium stored in each of the medium reservoirs; pressurizing devices for pressurizing the heat conducting medium to supply the heat conducting medium to the clearance, and a detachable connecting part formed between the heat release part and the heat absorbing part.
摘要:
The voltage output terminals of a semiconductor integrated circuit are connected to the first ends of resistors while the second ends of the resistors are connected to a common signal line. Taking advantage that the potential of the signal line presents the mean voltage value of the voltages output from all the voltage output terminals, the deviation of the potential at each voltage output terminal from the mean value and the difference of this mean value from the ideal value are determined, whereby the suitability of the output voltage from each of the output terminals is examined.
摘要:
This torque limiter is configured from a ring body and a spring-form part provided in the ring body. The ring body comprises a band-form metal plate and is bent approximately into a C-shape along the circumferential direction of a motor shaft and a lock holder. The spring-form part is formed so as to be capable of radial elastic deformation. The spring-form part is configured from main protrusions arranged in a compressed state between the motor shaft and the lock holder, and from sub-protrusions arranged in a non-compressed state. Further, grease is stored in a part or all of the concavities formed by the main protrusions and the sub-protrusions.