33results about How to "Avoid water short circuit" patented technology

The invention relates to the field of electronic communication, and discloses a USB (universal serial bus) device, which comprises an OTG (on-the-go) controller, a first plug, a second plug and a switchover device; the OTG controller is used for being externally connected with two piece of externally connected equipment to perform data interchange; the first plug is used for being plugged with the first externally connected equipment; the second plug is used for being plugged with the second externally connected equipment; the OTG controller is respectively communicated with the first and second plugs; the switchover device is used for controlling the communicating state of the first and second plugs and performing data processing by the OTG controller. The USB device can realize the data connection between mobile equipment or connection between a computer and the mobile equipment or be used as a power supply line for charging the mobile equipment or a battery by changing the work state of the switchover device, so the universality and portability of the USB device is improved.

The invention relates to a swimming pool automatic-washing machine, which is formed by a power control box, a water-discharge device, a filter, a frame cover, a motor, a bracket, a cleaning belt, and a frame. Wherein, the floating material can be polyphenyl foam plastic; the cleaning belt can be modified PVC material as soft polyvinyl chlorideto apply large temperature range. It has the advantages that: 1, the new water-proof structure can prevent watering the motor, each transmission elements uses non-oil sheath structure, and service life can be above 2000 hours; 2, the direct current motor uses new material which can operate more than 1600 hours; 3, the circuit of control power and the wire distribution technique are modified to reach the Europe organism safety standard; 4, the cleaning ability is significantly improved; 5, it uses floating material to make the whole machine be able dipped in water without changing working property.

The invention discloses a waterproof and electric shock-proof power adapter, which comprises a sealed casing, a fixed top plate and a fixed bottom plate, the fixed bottom plate is fixedly installed on the outer surface of the lower end of the sealed casing, two groups of docking plugs are movably installed under the fixed bottom plate, A second turntable is movably installed on the inner side of the upper end of the fixed base plate, and two groups of first turntables are movably installed on the inner inner surface of the second turntable, and the docking plug and the second turntable are movably connected through the first turntable, so Both the inner surfaces of the fixed bottom plate and the second turntable are provided with circular slots, the fixed top plate is fixedly installed on the inner surface of the upper end of the sealed casing, and the inner inner surface of the fixed top plate is movably installed with a side-rotating card cover; so that The waterproof and electric-shock-proof power adapter has a double-rotating adjustment structure, which improves its flexibility in use, and at the same time makes it have a sealed and closed structure, which improves its waterproof and dustproof effect and prolongs its service life.

The invention discloses a drying and dust removal device for a relay, which comprises a frame, a mobile drying assembly is arranged at the inner bottom of the frame, and the mobile drying assembly includes a first motor fixedly installed at the bottom of the frame. The end of the first motor is power-connected with a first rotating shaft extending up and down, the upper end of the first rotating shaft is fixedly connected with a first bevel gear, and the upper end of the first bevel gear is engaged with a second bevel gear, and the center of the second bevel gear is A second rotating shaft extending forward and backward is fixedly installed, and the second rotating shaft is fixedly connected with a first transmission wheel located at the rear side of the second bevel gear. When the device is working, the relay is dried by moving the drying component to prevent water short circuit, and the relay is fixed by two limit plates. After the device is completely fixed, the device cleans and vacuums the relay, which can effectively deal with the dust on the relay. , improve the working environment and reduce energy consumption.

The invention discloses a flame-retardant PCB board, which comprises a mounting plate, a mounting hole, a silica gel heat conducting frame, a heat dissipation hole, a semiconductor refrigeration sheet, a heat dissipation copper pipe, a connecting copper pipe, a heat conducting plate, an insulating plate, a fixing block, a micro fan, a set Air bucket, fireproof frame, heat conduction inner core, insulating frame, inner insulating layer, flame retardant layer, anti-aging layer, power layer, waterproof layer, grounding layer, chip, copper foil layer, outer insulating layer and temperature sensing IC. The invention has a reasonable structure, the real-time temperature of the chip can be detected in time through the temperature sensing IC, and the work of the micro fan and the semiconductor refrigeration chip is controlled according to the temperature, and the bottom of the PCB board is provided with support insulation and heat transfer through the insulating plate and the heat conducting plate. The micro fan drives the air from the air collecting bucket to the silicone heat conduction frame, so as to quickly cool down the heat dissipation copper pipe and take away the heat generated by the semiconductor refrigeration sheet when it is working. Effect.

The invention relates to the technical field of liquid containers, in particular to a water bucket and a liquid level control method for controlling a constant liquid level. liquid; an inner bladder holder arranged between the lower end face of the inner bladder and the bottom end face of the inner chamber of the outer casing, the inner bladder holder is in contact with the inner bladder and used to support the inner bladder; an electric push rod arranged on the bottom end face of the inner chamber of the outer casing, so The top end of the push rod of the electric push rod is fixedly connected with the inner bladder support and drives the inner bladder support to move in the vertical direction; a pressure sensor is arranged between the top end of the push rod of the electric push rod and the inner bladder support, and the inner bladder support The lower end face of the liner is provided with a laser range finder, and the laser range finder is used to measure the distance between the lower end face of the liner support and the bottom end face of the inner cavity of the shell. The invention can realize the effect of inconvenient height of the upper surface of the liquid in the inner tank from the ground.

The invention relates to an LED lamp which comprises a lamp cap, a lamp body and a heat dissipation lampshade. The lamp cap comprises a lamp cap body, an anode end, a cathode end and at least one connection part, wherein the anode end, the cathode end and the connection parts are arranged on the lamp cap body. The connection parts are provided with anode parts and cathode parts. The anode parts are connected with the anode end and the cathode parts are connected with the cathode end in the connection parts of the lamp cap. The lamp body comprises a plurality of PCBs. Each PCB is provided with at least one connection part, and the anode part and the cathode part of the connection part are connected with an anode part and a cathode part of another connection part outside the PCB in a pivoted mode. The light-emitting face of the PCB is provided with a plurality of LED lamps. The installation face of the PCB is provided with a control device for controlling the LED lamps. The heat dissipation lampshade is fixedly arranged on the lamp cap and is provided with a plurality of heat dissipation holes. By means of the LED lamp, the heat dissipation effect is made to be better, different lighting effects of the LED lamp is achieved as well, the LED lamp can be used for different occasions, the application range of the LED lamp is broadened, and the LED lamp is enabled to have more universality.

A waste water treatment device and a method are disclosed. The waste water treatment device comprises an ozone oxidation device and a biochemical treatment device. The ozone oxidation device comprises an ozone destructor and an oxidation reactor. The biochemical treatment device comprises a two-phase expanded bed, an oxygen dissolving device and a circulating pump. An exhaust outlet at the top of the oxidation reactor is connected to a gas inlet of the ozone destructor. A gas outlet of the ozone destructor is connected to a gas inlet at the lower part of the oxygen dissolving device. A water discharging pipeline at the bottom of the oxygen dissolving device and a water discharging pipeline at the lower part of the oxidation reactor are combined and then connected to the circulating pump. The outlet of the circulating pump is connected to a water inlet at the lower part of the two-phase expanded bed. A water outlet at the upper part of the two-phase expanded bed is connected to a water inlet at the upper part of the oxygen dissolving device. The method includes: feeding waste water into the oxidation reactor firstly to subject the waste water to oxidation, and feeding the waste water into the biochemical treatment device to subject the waste water to aerobic biochemical reactions. According to the waste water treatment device and the method, reaction conditions and mass transfer conditions can be optimized, the biochemical treatment load is increased, the oxygen component in the oxidation exhaust and the excess pressure of the exhaust are fully utilized, and the treatment cost is reduced.

The invention relates to an LED lighting lamp which comprises a lamp cap, a lamp body and a heat dissipation lampshade. The lamp body comprises an installation column body and a plurality of PCBs. An anode part and a cathode part are arranged inside the installation column body and are connected with an anode end and a cathode end of the lamp cap respectively. The installation column body is provided with a plurality of pairs of installation branches in an extended mode, and each pair of installation branches comprises an anode installation branch and a cathode installation branch which are connected with the anode part and the cathode part respectively. The PCBs are respectively fixedly connected to one pair of installation branches in an inserted mode, and an anode circuit is connected with the anode installation branches and a cathode circuit is connected with the cathode installation branches. Light-emitting faces, away from the installation column body, of the PCBs are provided with a plurality of LED lamps, and installation faces, facing the installation column body, of the PCBs are provided with control devices for controlling the LED lamps. The heat dissipation lamp shade is fixedly arranged on the installation column body. According to the LED lighting lamp, the heat dissipation effect of the LED lighting lamp is made to be better, different lighting effects of the LED lighting lamp are achieved as well, the LED lighting lamp can be used for different occasions, the application range of the LED lighting lamp is broadened, and the LED lighting lamp is enabled to have more universality.

The invention provides a nitrification and denitrification two-phase expanded bed reactor and a sewage treatment process. The expanded bed reactor includes a reactor, an oxygen dissolving device, a circulating pump and ancillary pipelines; the reactor is a vertical cylindrical structure, and from bottom to top it is divided into bottom water distribution area, aerobic reaction area, secondary water distribution area, anoxic The reaction zone and the water outlet area; the aerobic reaction zone and the anoxic reaction zone are filled with small particle size fillers, the secondary water distribution area is equipped with a contraction-expansion rectification ring, and the water outlet area is equipped with a three-phase separator. Using the above-mentioned expanded bed reactor, nitrification and denitrification are carried out in one reactor, and the biochemical and oxygen-dissolving processes are completed independently. The load of biochemical treatment is high, the equipment occupies a small area, and investment and operating costs are saved.