52results about How to "Active cooling" patented technology

A circuit device which enables formation of a minute pattern while securing a current capacity and has excellent heat release properties, and a manufacturing method thereof are provided. In a circuit device of the present invention, among multiple wiring layers, a first wiring layer is formed of a thin first conductive pattern and a thick second conductive pattern. Therefore, formation of the minute patterns is realized while securing the current capacity. Moreover, a small-signal circuit element is mounted on the first conductive pattern, and a large-current circuit element is mounted on the second conductive pattern. Thus, circuit elements having different sizes of currents to be handled are mounted on the same board. Furthermore, heat release properties are improved by the second conductive pattern which is formed to be thick.

The invention provides a high voltage distribution box, which relates to the field of automotive high voltage electrical systems. The high voltage distribution box comprises a box body, a fan bottom bin, a fan, a mounting plate, a heating device, a fan switch, and a temperature detection device, wherein the side surfaces of the box body are provided with air outlets; the fan bottom bin is fixedly connected with the box body; the box body and the fan bottom bin form accommodating space; the fan is arranged in the accommodating space and is fixedly arranged on the fan bottom bin; the mounting plate is arranged above the fan, and the mounting plate is fixedly connected with the box body; the heating device and the fan switch are fixed on the mounting plate; the temperature detection device is arranged in the accommodating space; and the temperature detection device and the fan switch are respectively connected with a battery management system. The temperature in the accommodating space is detected through the temperature detection device, the battery management system judges the temperature, if the temperature is higher than a preset value, the fan works, air enters from air inlets and air is exhausted from the air outlets in the side surfaces of the box body, or otherwise, the fan stops working. Thus, the fan can be prevented from being in a constant working state, the temperature in the high voltage distribution box can be effectively reduced, and the service life of an electrical device can be prolonged.

The invention discloses a moisture-proof power distribution cabinet for rainy areas, which comprises a casing, and an installation chamber is arranged inside the casing, and ventilation openings are arranged on the inner walls of both sides of the installation chamber, and each of the ventilation openings is installed There is a filter screen, the inner bottom of each vent is provided with a sliding groove, the inner top of each vent is provided with a limiting groove, each of the sliding grooves is provided with an activated carbon plate, and each of the vents The upper and lower ends of the activated carbon plate are fixedly connected with sliding bars, and each of the sliding bars is slidably connected with the inner wall of the corresponding sliding groove. The power distribution cabinet will raise the activated carbon plate in rainy days to dry the humid air and actively dissipate heat. The evaporation of water on the drying layer ensures the drying effect of the drying layer.

A fast heat dissipation LED lamp, comprising a lower housing, a fan device, an upper housing device, a baffle device, a light emitting device, a flow guide device and a power supply device, the lower housing is provided with pins, a first fixing rod, a second A through hole, a first cross bar, and bolts, the fan device includes a fan frame, a first pipe, a fan, a second fixing rod, a third fixing rod and a first fixing ring, and the upper casing device includes an upper casing and a first bracket , flat glass, a first fixed block, a second cross bar and an air outlet pipe, the baffle device includes a first vertical bar, a first spring and a baffle, and the light emitting device includes a lens element, an LED lamp, an aluminum substrate, a closing plate, a second The fixed block, the support ring, the flow guide device includes a filter frame, the water tank, the first connecting rod, the second connecting rod, the guide block and the third connecting rod, the power supply device includes a fixed frame, a curved plate, a power module and cables, the The invention can effectively dissipate heat for the heating element in the LED lamp, and the heat dissipation effect is good and fast.

The invention discloses a heat dissipation device, comprising an output seat, a cavity is arranged inside the output seat, a pinch tube is plugged into the upper end of the output seat, a heat conduction component is clamped and installed in the output seat, the output seat The upper end of the seat is provided with an air outlet, the air outlet is located above the heat conduction assembly, and the air outlet communicates with the heat conduction assembly, the lower end of the heat conduction assembly is fixedly installed with a heat dissipation assembly, the heat conduction assembly communicates with the heat dissipation assembly, and the rotating The upper end of the shaft passes through the heat conduction assembly and the heat dissipation assembly and is located in the pinch tube. The lower end of the rotating shaft is fixedly equipped with a clutch cup. The clutch cup is provided with an air inlet hole, and the partition plate is provided with a vent hole. In the present invention, the heat conduction component is communicated with the heat dissipation component and the air outlet is connected with the heat conduction component to form an air duct, which achieves the effect of integrated heat dissipation, can dissipate heat quickly, and integrates it into the output shell, saving space and making it more convenient to carry .

The present invention provides a rotating electrical machine capable of efficiently cooling permanent magnets and coils with a simple structure. A rotating electric machine (10) includes a rotor (20) having a rotor core (21), a plurality of permanent magnets (22) arranged on the rotor core (21), and an inner surface (23a) arranged so that the rotor core ( 21) an end plate (23) in contact with the end surface; a stator (30), which has a stator core (31) and a coil (32) configured on the stator core (31), and the stator (30) is placed on the rotor (20 ) is disposed so as to face the rotor (20); and a housing (50) that accommodates the rotor (20) and the stator (30) and has a storage portion (51) that stores liquid inside. The lower part of the rotor (20) is immersed in the storage part (51), and on the end plate (23), a liquid guide groove (23c) or a liquid guide hole (23f) extending radially is provided on the outer surface (23b).

An actively radiating battery pack charging / discharging control system provided by the present invention comprises a microcontroller, a signal acquisition device, a charging / discharging control circuit and a synthetic jet drive circuit, and the signal acquisition device comprises a voltage collector and a current collector of a battery pack, a stabilization sensor arranged inside a battery box body and a voltage sampling circuit connected with a synthetic jet device. The output end of the signal acquisition device is connected with the input end of the microcontroller via an A / D converter, and the output end of the microcontroller is connected with the charging / discharging control circuit and the synthetic jet drive circuit. The synthetic jet drive circuit comprises a drive circuit connected with the output end of the microcontroller, an inverter circuit connected with the battery pack and a filter circuit connected with the output end of the inverter circuit, and the output end of the filter circuit is connected with the synthetic jet device. According to the present invention, the synthetic jet device radiates the heat in the interior of a battery box actively, thereby improving a heat radiation effect, and prolonging the service life of a battery.