30results about How to "Reduce overheating problems" patented technology

The invention discloses a lithium-ion battery radiating structure based on phase-change microcapsule slurry. The lithium-ion battery radiating structure comprises lithium-ion batteries and cooling plates, wherein the plurality of cooling plates are arranged in parallel, and a layer or two layers of lithium-ion batteries are arranged in gaps among the cooling plates to form a lithium-battery pack radiating structure; the cooling plates are respectively welded by two cooling plate substrates and a plurality of cooling slurry flow channels are formed in the cooling plates; all the cooling slurryflow channels are distributed in a shape like a Chinese character ji, and are parallel each other; one end of each Chinese character ji-shaped flow channel is a cooling slurry inlet, and the other endof each Chinese character ji-shaped flow channel is a cooling slurry outlet; cooling slurry is arranged in the Chinese character ji-shaped flow channel; the cooling slurry is mixed slurry of coolingliquid and phase-change material microcapsules. The lithium-ion battery radiating structure based on the phase-change microcapsule slurry disclosed by the invention has the beneficial effects that theoperating temperature of the battery can be controlled to be a reasonable temperature window, the operating condition of a cooling system for power batteries under low cooling efficiency can be avoided, and the probability of the safety problems such as superheating of the batteries can be reduced, so that the indexes such as service life and heat safety of the power lithium batteries of electricvehicles are improved.

The invention discloses a main pump electromagnetic flywheel of a PWR (Pressurized Water Reactor) nuclear power station, aiming to provide a main pump electromagnetic flywheel of the PWR nuclear power station, substituting the coupling of an electromagnetic field for the mechanical connection between a flywheel and a main pump shafting, greatly improving the main pump running down time by separating a main pump shaft from a flywheel shaft, lowering the manufacture requirements on the main pump shafting, reducing the vibration energy of the main pump shafting, shortening the start time of a main pump and lessening the influence of the main pump start process on peripheral equipment. The main pump electromagnetic flywheel of the PWR nuclear power station comprises a mechanical flywheel, a synchronous motor, a DC start motor, a start control unit and a synchronous control unit, wherein the mechanical flywheel and the synchronous motor are mechanically connected with the rotating shaft ofthe DC start motor, the synchronous motor is connected in parallel with the main pump motor through a switch and a lead, the DC start motor is controlled by the start control unit, the electromagnetic flywheel is started by the DC motor, the synchronous motor keeps synchronous rotation, and the mechanical flywheel, the synchronous motor and the main pump motor jointly provide the main pump with running down energy. The invention is suitable for all PWR nuclear power stations.

The invention discloses a rigid-flex board and a mobile phone camera module; a position corresponding to an image sensor in an organic rigid-flex board applied in a normal mobile phone camera module is hollowed, and a reinforcing steel sheet is attached on the backside; the image sensor can be placed in the hollowed sink slot in a wafer bonding process, thus reducing the height of the whole mobile phone camera module without changing the mobile phone camera module TTL; in addition, the image sensor makes contacts with the steel sheet; the flatness of the steel sheet is much better than that of the surface of a PCB board, thus solving the poor imaging quality problems, caused by the flatness of the PCB board, of the image sensor; in addition, the image sensor is a photosensitive chip with large caloric power, the thermal diffusivity FR4 of the steel sheet is much better than the PCB board, so the overheating problems of the mobile phone in a normal shooting process can be reduced.

The invention discloses an inkjet printing head, which comprises at least one ejection unit, a cover film matched with the ejection unit, a piezoelectric ceramic actuator and a cover plate, a fluid inflow pipeline, a fluid outflow pipeline and a driving circuit device ; The piezoelectric ceramic brake and the cover plate are connected to form a number of independent piezoelectric ceramic units that are not connected to each other; the cover plate is connected to the injection unit, and the connection contact surface is provided with a number of fluid grooves on one side of the injection unit. The position of the unit corresponds to the position of the groove of the fluid tank; the fluid channel and the cover plate form a fluid channel, and each fluid channel is correspondingly equipped with at least one nozzle leading to the outside, so that the inkjet print head forms side or end surface spraying. Correspondingly, the invention also discloses an inkjet printer. With the present invention, on the premise of increasing the deformation of the piezoelectric ceramic brake and realizing the effective ejection action of the large-diameter ink, adjacent nozzles can operate simultaneously so that all nozzles can work simultaneously, thereby improving work efficiency.

The invention discloses a near-field communication and wireless charging integrated antenna based on a metallic housing. The integrated antenna comprises an NFC antenna coil and a WPC antenna coil installed on the inner sidewall of the metallic housing of a mobile terminal. Two through holes are disposed on the metallic housing. The NFC antenna coil is arranged around the outer side of one through hole. The WPC antenna coil is arranged around the outer side of the other through hole. The two through holes are connected through a first slit disposed on the metallic housing. A second slit is disposed on the edge of the metallic housing and is connected with any one of the through holes. Compared with a conventional NFC and WPC integrated antenna, the near-field communication and wireless charging integrated antenna is provided with the second slit on the metallic housing and connects the through holes on the metallic housing with the edge of the metallic housing by means of the second slit, thereby effectively changing eddy current distribution on the metallic housing and improving the performance of the antenna while eliminating a shielding effect of the metallic housing on the antenna.

The invention discloses an electronic device and its cooling fan module. The cooling fan module includes a base, an impeller, a liquid storage device, a water mist generating device and a cover. The impeller is disposed in the base. The liquid storage device is arranged at the shaft center of the impeller, and the liquid storage device contains a liquid. The water mist generating device is arranged on the liquid storage device, and the water mist generating device can spray the liquid in the liquid storage device as water mist to absorb heat in the electronic device. The cover covers the base and cooperates with the base to form an air outlet. In addition, the cover contains an air inlet. When the impeller rotates, the blades on the impeller will drive the air flow to suck the water mist into the base through the air inlet, and discharge the water mist from the base through the air outlet.

The application relates to systems and methods for controlling the airflow through a power steering system. Methods and systems are provided for preventing overheating of the power steering system. Inone example, a method includes operating an engine cooling fan based on a steering wheel angle and an engine speed. The cooling fan may be operated for a duration based on the steering wheel angle and the engine speed, thus eliminating the need for a dedicated power steering coolant temperature sensor.

The invention provides a method for implementing controllable gap connection of hard materials in atmospheric environment by heating and cooling with mould and a mould applied in the method. The hard materials to be connected include ceramic, glass and other hard materials. The method based on the existing mechanical vibration connection methods, such as ultrasonic-assisted connection, is characterized in that a special clamping mould is used, overall heating and cooling with mould is applied, and the method is organically used with high frequency vibration assisted connection to allow for reliable connection of hard materials in atmospheric environment. Using the special clamping mould has the advantages that connecting process devices are simplified, operation is simple; the materials to be connected are clamped to ensure stability of overall structure; gap between joint surfaces is controlled; sufficient pre-pressure is provided; the clamping mould serves as an indirect heating source to input sufficient heat for joints; cooling rate is retarded; separation of the connected workpieces is simplified.

The present application relates to systems and methods for controlling airflow through a power steering system. The present application provides methods and systems for preventing overheating of a power steering system. In one example, a method includes operating an engine cooling fan based on a steering wheel angle and an engine speed. The cooling fan can be operated for a duration based on steering wheel angle and engine speed, eliminating the need for a dedicated power steering coolant temperature sensor.

The invention discloses a main pump electromagnetic flywheel of a PWR (Pressurized Water Reactor) nuclear power station, aiming to provide a main pump electromagnetic flywheel of the PWR nuclear power station, substituting the coupling of an electromagnetic field for the mechanical connection between a flywheel and a main pump shafting, greatly improving the main pump running down time by separating a main pump shaft from a flywheel shaft, lowering the manufacture requirements on the main pump shafting, reducing the vibration energy of the main pump shafting, shortening the start time of a main pump and lessening the influence of the main pump start process on peripheral equipment. The main pump electromagnetic flywheel of the PWR nuclear power station comprises a mechanical flywheel, a synchronous motor, a DC start motor, a start control unit and a synchronous control unit, wherein the mechanical flywheel and the synchronous motor are mechanically connected with the rotating shaft ofthe DC start motor, the synchronous motor is connected in parallel with the main pump motor through a switch and a lead, the DC start motor is controlled by the start control unit, the electromagnetic flywheel is started by the DC motor, the synchronous motor keeps synchronous rotation, and the mechanical flywheel, the synchronous motor and the main pump motor jointly provide the main pump with running down energy. The invention is suitable for all PWR nuclear power stations.

The invention discloses a natural gas turbocharger with a cooling system. The natural gas turbocharger comprises a volute, a pressing shell and an intermediate body. Connectors are arranged on the volute and the intermediate body at the same time, and a water pipe is connected between the two connectors of the volute and the intermediate body. An intermediate body water channel inlet is formed in the surface of the intermediate body, and a volute water channel outlet is formed in the surface of the volute. A water channel and an oil channel are distributed in the intermediate body. A volute water channel and an air flow channel are distributed in the volute. The intermediate body water channel outlet is in butt joint with the connector on the surface of the intermediate body. The volute water channel is in butt joint with the connector on the surface of the volute. According to the natural gas turbocharger with the cooling system, the strong cooling system is added to the natural gas turbocharger, the problem of the turbocharger caused by too high temperature is effectively solved, and it is guaranteed that the turbocharger works efficiently for a long time.

The invention discloses a layered modular ozone generator.The layered modular ozone generator comprises a plurality of ground electrode plate assemblies and high-voltage electrode plate assemblies.Each ground plate electrode assembly is provided with a gas inlet, a gas outlet, a water inlet and a water outlet and comprises two ground electrode plates, namely, the first ground electrode plate and the second ground electrode plate which are connected in a butt joint mode, wherein the back faces of the first ground electrode plate and the second ground electrode plate are connected in a butt joint mode, the butt joint face is provided with a water channel communicated with the water inlet and the water outlet, and the front faces of the first ground electrode plate and the second ground electrode plate are provided with ground electrode grooves.The ground electrode plate assemblies are sequentially connected to form a stacked structure, and the gas inlets, the gas outlets, the water inlets and the water outlets of all the ground electrode plate assemblies are correspondingly communicated.One high-voltage electrode plate assembly is arranged between every two adjacent ground electrode plate assemblies.