4results about How to "Good thermal coupling" patented technology

The application relates to the technical field of water purification equipment, and relates to a water treatment equipment which comprises a temperature adjusting device; the temperature adjusting device comprises a heat exchange part, a heat exchange pipeline and a heat exchange water tank, the cold working end of the heat exchange part is thermally coupled to a water storage device, the heat exchange water tank is provided with a heat exchange channel used for conveying a heat exchange water source, and the heat exchange channel is connected to the heat exchange part; wherein the heat exchange channel comprises multiple bending sections, and the heat exchange water source is thermally coupled to the heat dissipation end of the heat exchange part through the heat exchange water tank. The water treatment equipment in the embodiment improves the heat exchange effect between the heat exchange water source and the heat exchange water tank by adopting the heat exchange channel with the bending sections.

The invention relates to a motor vehicle drive, comprising a housing with an engine cavity and an adjacent transmission cavity separated by an inner end wall, an electric motor arranged in the engine cavity, the electric motor having a stator fixed to the housing and a rotor having a rotor shaft rotatably supported in the engine cavity and passing through the inner end wall, and a transmission arranged in the transmission cavity, the electric motor having an input pinion fastened to a rotor shaft serving as a drive shaft there and an output gear connectable or connected to a driven end, and an oil reservoir, from which oil can be guided to the rotor shaft via an oil supply system for cooling the electric motor and from the rotor shaft back to the oil reservoir via an oil discharge system, wherein the housing wall of the engine cavity has a cooling water jacket surrounding the stator along the circumference of the stator for additional cooling of the electric motor, wherein at least a portion of the oil reservoir is constructed as a labyrinth cavity arranged below the engine cavity, the upper side of which is thermally coupled to the cooling water jacket.

The invention relates to the technical field of optical fiber sensing, in particular to a fiber bragg grating low-temperature sensor and a preparation method and a monitoring method thereof, and the fiber bragg grating low-temperature sensor makes use of the characteristics that a polyether-ether-ketone material is large in thermal expansion coefficient and has good adaptability in a frozen soil environment, so that the sensitivity enhancement effect of the packaged sensor is obvious; the device can well resist frozen soil freezing and thawing, water erosion and other influences, realizes long-term stable and high-precision temperature measurement, and is simple in structure and easy to process; according to the preparation method, the extra pressure stress acting on the fiber bragg grating in the cooling process after the thermosetting adhesive is heated and cured is counteracted through enough tensile stress, the chirp phenomenon caused by full-pasting packaging can be effectively avoided, good thermal coupling between the substrate and the fiber bragg grating is achieved, the use reliability is improved, and the service life is prolonged; the monitoring method adopts a specific mounting mode to realize good contact between the base and the mounting position, and the base can freely expand and retract under the action of temperature, so that the requirement of high longitudinal resolution of the temperature gradient of the frozen earth stratum is met.

The application relates to the technical field of precise optical machine system design, in particular to a long-focus telephoto type television wide-temperature optical axis stability passive compensation mechanism, which comprises an optical machine lens assembly, the optical machine lens assembly is externally sleeved with an integrated support matched with the optical machine lens assembly, the integrated support is fixedly arranged on a mounting bottom plate, and the rear end of the optical machine lens assembly is fixedly connected with a detector assembly; the front end of the integrated support is fixedly connected with the optical machine lens assembly, the rear end of the integrated support is slidably connected with the optical machine lens assembly, and a reserved gap is arranged between the rear end surface of the integrated support and the front end surface of the detector assembly; the compensation mechanism is applied to a television camera, axial deformation stress between the optical machine lens assembly and the integrated support caused by structural mechanical characteristic differences of the long-focus telephoto type television under a wide-temperature range can be effectively offset, and the wide-temperature optical axis stability is improved.