3results about How to "Avoid temperature gradients" patented technology

The utility model provides a kind of water cooling structure and outer rotor permanent magnet motor, belong to the technical field of motor, wherein outer rotor permanent magnet motor includes outer rotor structure, inner stator structure and two end covers;Water cooling structure includes cooling water channel and inlet and outlet water component;Cooling water channel is arranged in the inside of annular plate in inner stator structure;Inlet and outlet water component is arranged on inner stator structure, and is used to supply and discharge coolant to cooling water channel in circulation;Cooling water channel includes multiple direct current sections and multiple bending sections;Multiple direct current sections circumferential interval distribution in the inside of annular plate in inner stator structure, and the extension direction of direct current section is parallel to the axial direction of inner stator structure;Multiple bending sections are communicated between the end of adjacent two direct current sections, and close to the both ends of annular plate.The utility model passes through the combination of direct current section and bending section, makes coolant constantly flow through the both ends of annular plate, avoids temperature gradient to be generated at the both ends of inner stator structure, improves heat dissipation effect.

This utility model discloses a low-noise water heater, comprising: a heating element disposed at the bottom of a cavity; the heating element includes a heating tube and a heat spreader plate, the heating tube and the heat spreader plate being thermally connected, the heat spreader plate being attached to the bottom of the cavity, and the heating tube being spirally arranged; the ratio of the thickness of the heat spreader plate to the surface load of the heating tube is greater than or equal to 40%, and the thickness of the heat spreader plate is 3.5-5mm; wherein, the effective heat transfer area ratio of the heating tube and the heat spreader plate is greater than or equal to 50%, and the heating tube and the heat spreader plate cooperate to homogenize the heat generated by the heating tube; a first through hole is provided on the lower surface of the cavity, and a water inlet pipe passes through the spiral gap of the heating tube and the first through hole in sequence; a bracket is provided on the inner surface of the cavity, the bracket being disposed on the first through hole, and the bracket being used to buffer the water flow of the water inlet pipe. This device fundamentally solves the noise problem caused by uneven heating and bubble bursting during the heating process.

The application discloses an embryo in-vitro culture and in-situ monitoring system and method, and belongs to the field of online monitoring of embryo in-vitro culture. The system comprises: a high-precision microscope, which is a table type fixed structure and is provided with a stage; a culture unit, which is based on the structural design of the stage and is arranged on the stage, is used for accommodating embryos and providing a culture environment required by in-vitro development of the embryos; a thermostat, which seals the related part of the microscope containing the stage and provides a stable temperature environment for the culture unit; and a control unit, which is connected with the culture unit, is used for providing a multi-channel perfusion culture pipeline and driving and can perform time-periodic perfusion culture. The application wraps the microscope by the thermostat and adopts cascade closed-loop temperature control to provide a stable temperature and humidity environment; realizes fine shear force stimulation through time-periodic perfusion; realizes in-situ high-resolution imaging through adaptation of the high-precision microscope, does not need to transfer embryos, and significantly improves imaging quality and experimental efficiency.