49results about How to "Solve the problem of excessive temperature rise" patented technology

The invention discloses a compact type hydro-hybrid ceramic main shaft device. On the structural design, the mode of radial middle and thrusting two ends is adopted, simultaneously, the structure that the metal fully includes a ceramic friction pair is adopted, and shape deformation of all ceramic parts can be avoided on design. In the invention, support bearings are taken as ceramic hydro-hybridceramic bearings, and simultaneously have the radial bearing function and axial thrusting function; the ceramic parts are prevented from bearing large tension action, or the condition that the parts are broken due to the overlarge stress of the edges of the parts is prevented, the concentration stress at the inner part of the ceramic parts is reduced, and breakage accidents caused by design flaw of the ceramic parts can be prevented; the lubricating liquid flow is saved as liquid outlet pressure of a radial bearing is taken as the liquid supply pressure of a thrust bearing; the seam of the radial bearing is taken as a choke holder of the thrust bearing, so that the cost of the choke holder is saved; and the radial baring can be tightly combined with the thrust bearing, so that the length is shortened under the condition of unchangeable radial bearing function and axial thrusting function of the main shaft, the structure is more compact and simple and the processing is convenient.

A refrigerator according to the invention can settle the problem of overgreat temperature increase of refrigerating chamber and simultaneously execute the defrosting of cooler used by the refrigerating chamber. Commonly the refrigerating chamber activates a fan used by the refrigerating chamber for executing the defrosting of cooler used by the refrigerating chamber in a freezing mode. Furthermore, the switching from the freezing mode to a cold preserving mode is executed independently from the detection result of cooler temperature sensor used by the refrigerating chamber. At a state that a special condition is satisfied, the fan used by the refrigerating chamber is activated in the freezing mode and the defrosting of cooler used by the refrigerating chamber is executed (step A202, A203). Furthermore when the detection result of the cooler temperature sensor used by refrigerating chamber is above a first preset temperature (YES in step A205), the switching (step A208-A210) from the freezing mode to the cold preserving mode is executed.

The invention discloses a temperature-controllable transparent static box and a field in-situ greenhouse gas collecting method. A water trough is adhered and fixed to a soil ring; a refrigerating water tank is connected with a box; the refrigerating water tank is fixed to the box through a guide rail; a water pump is placed at the bottom of the refrigerating water tank; a water inlet pipe is connected with a water outlet of the water pump in a sleeving manner; a gas pressure balancing tube is communicated with the box through a gas pressure balancing hole; one end of a water outlet pipe is placed on the refrigerating water tank; a top cover is adhered to the top of the box in a sealed manner; the top of an air cooler is fixed to the inner side of the top cover; the output end is connectedwith the water pump through a water pump power controller; a high-sensitivity temperature probe is connected with a temperature controller through a temperature probe inserting hole; a mobile power supply is directly connected with the input end of the temperature controller and connected with a fan through a fan power hole; one end of a sampling tube is communicated with the box through a sampling hole; a gas collecting valve is fixed to the upper end of the sampling tube. The temperature-controllable transparent static box is significant in effect, low in cost, simple in structure, portable,easy to operate, wide in application range and high in result sensitivity, and the temperature and the air pressure inside the box can be effectively controlled.

A solar ventilation refrigerating device comprises a housing, a refrigerator, a cover plate and a solar cell panel, wherein the refrigerator is located in the housing; the cover plate comprises a cover plate cover and cover plate seats; the cover plate seats are located in the housing and distributed at the two ends of the refrigerator; air channels are arranged on the cover plate seats; an air inlet and an air outlet are formed in the cover plate cover; a lifting mechanism is arranged on one side of a bottom plate of the housing, penetrates through the air inlet and the air outlet and is fixedly connected with the solar cell panel; the solar cell panel ascends and descends under the action of the lifting mechanism; the solar cell panel provides electric energy to the refrigerator and the lifting mechanism of the solar ventilation refrigerating device with surrounding solar energy resources; cool air can be continuously supplied to the interior of a vehicle exposed in the sun; the problem of an overhigh temperature rise in the vehicle parked in the open air is solved effectively; and the vehicle comfortability is improved.

The invention discloses a rotor liquid cooling system structure suitable for an inner rotor motor, and belongs to the field of motors. The invention aims at solving the problems that in the prior art,heat in a motor is difficult to dissipate, and the cooling effect is poor. A liquid incoming end is arranged at one side of a rotating shaft, and the other side is provided with a liquid outgoing end. At least one liquid incoming channel is formed on the rotating shaft at the liquid incoming end, and a plurality of radial flow guide channels are formed on the rotating shaft in the inner rotor. Aplurality of axial liquid through holes are formed in the inner rotor. The liquid incoming channel and the radial flow guide channel are communicated with the axial liquid through holes, and an outputend of an external circulation part is connected with the liquid incoming pipe. Cooling liquid in the liquid incoming pipe is conveyed to the axial liquid through holes through the radial flow guidechannels, and the cooling liquid flows to the liquid outgoing end along the axial liquid through holes and is sprayed to an extending end of the rotor winding through a centrifugal force and then is collected through the external circulation part. The structure is suitable for any inner rotor motor, and the heat dissipation effect is good.

The invention discloses a large-view-field and high-integration-density focal plane structure of an off-axis camera for space. The heat conduction area of the focal plane structure is greatly increased compared with that of a focal plane structure of an off-axis camera for space in the prior art, the heat dissipating mode of combining heat tubes and cold radiating plates is adopted, the problem that due to large power consumption of the large-view-field and high-integration-density focal plane structure of the off-axis camera for space, the temperature of an imaging device of the focal plane structure rises too quickly in the working process is solved, and the situation that heat generated by multiple detectors cannot be all dissipated through a focal plane substrate, consequently, the performance of the detectors is reduced, and the imaging performance of the space remote sensing camera is reduced is avoided.

The invention relates to the technical field of low-voltage electric appliances, in particular to a wiring frame structure, a wiring terminal and a low-voltage electric appliance. The wiring frame structure comprises a wiring frame, the wiring frame is a frame body structure which is enclosed by a top edge, two side edges and a bottom edge and is internally provided with a wiring cavity for a wire to pass through and be fixed; the wiring frame structure also comprises at least one avoiding structure arranged on the inner wall of at least one side edge and sinks away from the wiring cavity, and the avoiding structure is suitable for providing an avoiding space for expansion of the wire when the wire fixed in the wiring cavity is electrified and heated. Through the arrangement of the avoiding structure, when the wire is heated to expand, the wire can be extruded into the avoiding structure, attenuation of locking force is reduced, meanwhile, the contact area of the wire and the wiring board is increased, contact resistance is reduced, temperature rise at the wiring position of a product can be reduced. The problem of over-high temperature rise caused by easy loosening of wires of an existing wiring frame structure due to thermal expansion is solved.

The present invention discloses a hydrotreating catalyst preparation method, which comprises: (1) adding water to a carrier component, and beating to obtain a slurry; (2) respectively or simultaneously adding a solution containing a first hydrogenation activity metal component and an organic compound or an organic compound solution to the slurry, and uniformly stirring; (3) filtering the material obtained in the step (2), washing, and drying to obtain a catalyst intermediate; (4) carrying out mixing kneading on the catalyst intermediate, molding, and drying to obtain a catalyst molding body; and (5) impregnating an impregnating liquid containing a second hydrogenation activity metal component on the catalyst molding body, drying, and calcining under the protection of an inert gas to obtain the hydrotreating catalyst. The catalyst of the present invention has advantages of good metal dispersion, high mechanical strength, and good hydrogenation performance.

Disclosed are a switchgear and an openable busbar room. The switchgear and the openable busbar room mainly solve the problem of difficult installation of busbars in a conventional busbar room. The openable busbar room is characterized in that a skeleton of the busbar room is of a split structure and includes a fixing frame and a movable frame, the movable frame is provided with a first position opened separately from the fixing frame and a second position closed together with the fixing frame, an interlocking mechanism is arranged between the fixing frame and the movable frame, three wall bushings are arranged, each wall bushing is of a split structure and includes a static bushing and a moving bushing, the static bushings are fixedly mounted on the fixing frame, and the moving bushings are correspondingly mounted on the movable frame. The advantages of the openable busbar room are that when the busbars are installed, the skeleton of the busbar room and the wall bushings can be opened,wen the installation is completed, the skeleton of the busbar room and the wall bushings are closed, five-protection interlocking requirements of electrical equipment can be achieved through the interlocking mechanism, which makes the installation of the busbars very simple, and the split type wall bushings are used instead of closed type wall bushings, which can effectively solve an eddy currentproblem.

The invention relates to a high-efficiency cooling heat dissipation structure, in particular to an auxiliary casing type outer rotor permanent magnet synchronous motor cooling device. The safety performance and the stability performance of the motor are guaranteed. The device comprises a permanent magnet motor and a heat dissipation copper pipe, one end of the heat dissipation copper pipe is connected with an auxiliary casing type radiator, the other end of the heat dissipation copper pipe is inserted into a stator iron core yoke portion of a permanent magnet motor, the heat dissipation copper pipe is used for absorbing heat generated in a stator winding and a stator iron core, and the auxiliary casing type radiator increases the heat dissipation area.

The application discloses a liquid metal radiator. The liquid metal radiator comprises a heat exchange part, a radiating part, a circulating pipeline and a driving pump and like components; through the cooperation of above components, the physical characteristic that the liquid metal is low in melting point and high in high-temperature heat conductivity is used for cooling the internal of the cabinet of the gas-insulated metal closed switch equipment, and the problem that the temperature rise in the gas-insulated metal closed switch equipment is excessively high is effectively solved. In the liquid metal radiator disclosed by the application, the liquid metal is used as the circulating cooling liquid, compared with the traditional air, water, non-metallic medium and like cooling mediums, and the liquid metal has higher heat conductivity, so that the liquid metal has more efficient heat transport and extreme radiating capacity. Furthermore, the liquid state is hard to evaporate, hard toleak, safe and non-toxic, and stable in physic-chemical property, and capable of guaranteeing efficient, long-term and stable running of the radiator.

The invention relates to a battery module for carrying out overcurrent by pressing, comprising a plurality of battery modules, a plurality of intermediate copper or aluminum sheets, a plurality of long screws and two end plates; The plurality of battery modules are arranged side by side, one intermediate copper sheet or aluminum sheet is arranged between each adjacent battery module, two battery modules arranged at the outermost end are respectively provided with one end plate, and the plurality of battery modules, the plurality of intermediate copper sheets or aluminum sheets and the two endplates are connected through the plurality of long screws to form a battery module. Further, the battery module comprises a battery cell, a bracket and a nickel sheet; The battery cell is arranged inthe bracket; The battery cell and the bracket are electrically welded with the nickel sheet. The invention reduces the cost of the battery system and the types of materials used. Reduce bolt-on structure, provide productivity, and improve reliability of battery systems; The problem that the temperature rise is too high due to the difference between overcurrent design and actual operation conditions is solved.

A battery pack heat dissipation structure and device are provided. The battery pack heat dissipation structure includes a battery pack (100) which is provided with multiple air vents (110) in the shell thereof. One part of the air vents are communicated with a fan (300) through a ventilation duct (200), and the other part of the air vents are directly communicated with the air outside the batterypack. In the invention, air vents communicated with a fan and air vents communicated with the outside air are arranged in a traditional battery pack, the fan in the device is used as a power source ofthe airflow, and a hollow assembly of the device is used as a ventilation duct, so that the fan can drive the airflow in the battery pack while completing its own task. The problem of excessive temperature rise of the battery packs of battery products and the parts around batteries is solved, and a good heat dissipation effect is achieved for battery packs and parts around batteries. Batteries with larger capacity can be selected in the design of the whole machine.