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39results about How to "Affect working status" patented technology

LED constant current drive circuit used for portable device

The invention relates to an LED constant current drive circuit used for a portable device. The LED constant current drive circuit comprises a power supply cell and an LED that is driven; besides, the LED constant current drive circuit also includes: a control chip, which is used for emitting a PWM control signal according to a feedback signal; a switch circuit, which is used for enabling the LED constant current drive circuit to be connected or disconnected according to the PWM control signal; a filter circuit, which is used for converting a pulse current that is output by the switch circuit into a constant current; an output circuit, which is used for outputting the constant current to drive the LED; and a feedback circuit, which is used for emitting the feedback signal according to the constant current. According to the LED constant current drive circuit used for a portable device in the invention, a circuit that is formed by combination of simple electronic components like a one-chip microcomputer is utilized to drive an LED; therefore, the LED can be driven by constant currents and extended functions including power source voltage detection and prompting and the like can be realized; defects of high cost and low expansibility of an original LED constant current drive circuit for a portable device can be overcome.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Intelligent power transformer

The invention relates to the technical field of transformers, in particular to an intelligent power transformer having resonance elimination and monitoring functions. The intelligent power transformer includes a housing provided with an oil outlet and an installation plate, a coil arranged in the housing, an oil conservator arranged on the housing and used for supplying cooling oil to the coil, an iron core made of amorphous alloy materials, a resonance elimination coil arranged on the iron core and used for monitoring and regulating the magnetic flow change in the iron core, and a controlling device arranged on the intelligent power transformer or detachably arranged on a working platform and used for monitoring and remotely controlling the coil and the resonance elimination coil. The intelligent power transformer has the advantages that amorphous alloy cores are adopted, the electric energy transmission loss value is reduced, and energy conservation and environment protection are achieved; by the arrangement of the magnetic flow change monitoring and resonance elimination coil, waveform distortion is prevented, and power distribution is affected; by arranging a monitor and a sensor in the controlling device, remote operation of components in a circuit and monitoring of working states of all the components are achieved, and the power transformer is more intelligent, automated and integrated.
Owner:JIANGSU RYAN ELECTRIC LTD BY SHARE LTD

Numerical-control low-pressure casting machine

The invention provides a numerical-control low-pressure casting machine. The numerical-control low-pressure casing machine comprises a liquid crystal touch screen, a turbo type air compressor pump, a main controller, an air valve, a U-shaped storage crucible and a high-resistance heating layer. The air valve is arranged at the bottom of the left side of a safety protective case. The main controller is installed at the top of the left side of the safety protective case. The liquid crystal touch screen is arranged at the left end of the upper surface of the safety protective case. The U-shaped storage crucible is fixed to the right end of the interior of the safety protective case through a support. The high-resistance heating layer is evenly distributed on the outer wall of the periphery of the U-shaped storage crucible. Compared with the prior art, the numerical-control low-pressure casting machine has the following beneficial effects that the main controller and the liquid crystal touch screen are arranged in cooperation so that the pressure of the numerical-control low-pressure casting machine can be controlled under a numerical-control operating system, flowing stability of molten metal is guaranteed, the flow velocity and the flow can be controlled continuously and accurately, the quantity of internal impurities is reduced, and the quality of workpieces is improved.
Owner:CHONGQING TETAI MACHINE MFG CO LTD

Motor with two-way type air cooling structure

The invention discloses a motor with a two-way type air cooling structure. The motor comprises a motor body and a driving control box fixed on the motor body, wherein the motor body comprises a base, a hood casing arranged at the rear part of the base and a fan arranged in the hood casing; a plurality of box body radiating ribs are arranged on the surface of one side, close to the motor body, of the control box, and projections of the box body radiating ribs in the radial direction of the motor body are positioned in the outer edge range of the hood casing. According to the motor disclosed by the invention, heat generated in the control box is conducted through the box body radiating ribs; the box body radiating ribs are arranged on one side, close to the motor body, of the control box, so that a distance between two heating sources can be ensured, and the situation that the operating condition of the motor is affected due to heat accumulation at the contact position between the motor body and the control box is avoided; an original one-way air cooling structure in which air blown by the fan only flows in the direction of machine body radiating ribs is transformed into the two-way air cooling structure in which the air path simultaneously flows through the machine body radiating ribs and the box body radiating ribs, and the motor is simple to transform.
Owner:苏州奥宝杰电机科技有限公司

L-band RF system output port protection equipment

ActiveCN103532587AReal-time monitoring of return loss valueGuaranteed reliabilityTransmitters monitoringAudio power amplifierFeedback circuits
The invention relates to L-band RF (Radio Frequency) system output port protection equipment which comprises an L-band RF system output port protection circuit arranged in a metal sealed cavity, wherein the circuit comprises a coupler, a detection comparison circuit and a digital control feedback circuit; the detection comparison circuit comprises a forward detection circuit, a reverse detection circuit, a tuning circuit and a comparator; the data feedback circuit comprises a data processing circuit, a VSWR (Voltage Standing Wave Ratio) indication circuit and a protection judgment circuit; after the equipment is connected with an RF system final amplifier, an L-band incident wave is separated from a reflected wave in proportion by utilizing the coupler, the separated reflection quantity and incidence quantity are compared by the detection comparison circuit, then a logic level is output, and connected with the digital control feedback circuit, and port matching is judged by data processing, so that when a port is mismatched, the protection circuit can timely close a corresponding sending signal, and a protection function is exerted; and the whole equipment has the characteristics that the equipment is small, exquisite, light, and sensitive in indication and judgment.
Owner:TOEC TECH

Spindle cooling device for numerically-controlled machine tool

The invention belongs to the technical field of numerical control, particularly relates to a spindle cooling device for a numerically-controlled machine tool, and provides the following scheme for solving the problems that in the prior art, a spindle cooling device is poor in spindle cooling effect and low in cold source using efficiency. The spindle cooling device comprises a cooling box, a spindle is rotatably connected in the middle position between the two sides of the cooling box, a cover plate is fixed to the top of the cooling box, spray heads distributed at equal intervals in the horizontal direction are fixed to the top of the cover plate, a liquid discharging pipe is fixed to the bottom end of the cooling box, and limiting pieces of arc-shaped structures are fixed to the positions, located at the two ends of the spindle, between the inner walls of the two sides of the cooling box. The middle positions of the limiting pieces are arched towards one end far away from the spindle. According to the cooling device, through limiting and flow guiding of the limiting pieces, the cooling device makes full contact with the spindle for heat exchange, an air pipe is matched for blowing air from the middle position to upwards extrude hot steam and disperse heat all around, the actual cooling effect on the main shaft is improved, and the actual utilization effect on the cooling source is improved.
Owner:杨晓成

Slag removal anti-lock braking system for rock tube push bench and slag removal method

PendingCN113323671AReduce the frequency of slag cleaningImprove accuracyTunnelsSlagWater pipe
The invention provides a slag removal anti-lock braking system for a rock tube push bench. The tube push bench comprises a tool pipe provided with a drill bit and a matching pipe connected to the tool pipe, and the anti-locking system comprises a slag blocking plate arranged on the tool pipe; and the slag blocking plate can prevent silt and/or stones from flowing along the outer wall of the tool pipe. A slag removal method for the rock tube push bench comprises the steps that tool pipe drill bit torque is collected, and slag is removed through the slag blocking plate; tool pipe drill bit torque is collected, namely, the tool pipe drives the drill bit to rotate, a torque collector collects the torque for driving the drill bit in real time, and when the torque is reduced by 2% or above, a pressurizing part is started to pressurize a spray head or a flushing pipe; and slag is removed through the slag blocking plate, namely, the spray head or the flushing pipe sprays water to the slag blocking plate so that silt and/or stones gathered outside the slag blocking plate can leave the slag blocking plate. The slag removal anti-lock braking system for the rock tube push bench has the advantages that the slag removal anti-lock braking system is particularly suitable for construction of pipelines with the hole diameter ranging from 80 cm to 200 cm, and slurry can be prevented from flowing along the tool pipe to lock the tool pipe.
Owner:CHINA NAT CHEM ENG NO 16 CONSTR

A smart camera burning prevention device for power failure

The invention relates to a device for preventing power failure and crash during recording of an intelligent camera, comprising a device casing and an aluminum protective layer. The upper end of the device casing is provided with a first wiring mechanism, and the lower end of the device casing is provided with a second wiring mechanism , a third wiring mechanism is provided on one side of the equipment casing, the aluminum protective layer is located inside the equipment casing, and the interior of the aluminum protective layer is provided with a ceramic protective layer, and the inner upper wall of the ceramic protective layer is fixed There is a backup power supply electrode, and the lower end of the backup power supply electrode is inlaid with an anti-collision steel plate, and an arc shielding mechanism is installed on the inner front and rear walls of the ceramic protective layer. The beneficial effects of the present invention are: the intelligent camera is programmed to prevent power failure and crash, and the middle of the backup power supply electrode and the working power supply electrode can be shielded by the rubber shielding plate, so as to prevent the arc generated by the backup power supply electrode from affecting the work of the working power supply electrode. , which leads to the instability of the connected electrode conduction voltage when it is high and low.
Owner:深圳市翔飞科技股份有限公司

A pipeline magnetorheological damper based on active control

The invention discloses a pipeline magnetorheological damper based on active control. The pipeline magnetorheological damper based on active control comprises an upper pipe clamp, a lower pipe clamp,a connecting plate, a cylinder cover, an upper cylinder body, a magnetism isolating cover, a piston, a hollow threaded pin, a supporting spring, a lower cylinder body, a diaphragm, a diaphragm pressure plate, a quick-change permanent magnet excitation coil, a magnetorheological damping liquid filled in the cylinder bodies, a connecting part and a sealing part. The pipeline magnetorheological damper based on active control is applied to pipeline vibration reduction of pumps and compressors. Compared with a passive magnetorheological damper, the active control magnetorheological damper is high in precision, wide in applicable place and good in damping effect. According to the magnetorheological damper, signals transmitted by a vibration sensor are transmitted to a control module, and then the amplified electric signals are transmitted to the permanent magnet excitation coil to change the magnetic field strength, so that the damping force generated by shearing and flowing is changed, andthe vibration reduction function of a pipeline is realized.
Owner:BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1

Detachable liquid level switch and installation method thereof

The invention discloses a detachable liquid level switch and an installation method thereof; the detachable liquid level switch comprises a box body, a first positioning plate, a second positioning plate, a liquid level detection mechanism, and a sleeve mechanism; the box body is provided with a display window having a protection ring; the box body is fixedly connected on the top face of the first positioning plate through a pedestal; the second positioning plate is connected with the first positioning plate through a first screw; the liquid level detection mechanism and the sleeve mechanism are positioned on the bottom face of the second positioning plate; the liquid level detection mechanism is arranged in the sleeve mechanism; the installation method comprises the following steps: mounting position selection, liquid level switch installation, water level detection test run, and maintenance; the detachable liquid level switch is simple in structure, strong in practical value, has switch function, can transfer real time monitored data to a reception terminal, so the liquid level rising height and speed can be well controlled, thus improving liquid level switch practical value and flexibility; the installation method is simple in steps, strong in operationality, and can improve liquid level switch working precision.
Owner:浙江富士精工科技有限公司

A computer controller of a hydraulic climbing frame system

The invention provides a computer controller of a hydraulic climbing frame system. The computer controller comprises a box body, wherein the two sides of the box body are provided with rectangular grooves respectively, the rectangular grooves are both communicated with the inner portion of the box body, the two sides of the box body are provided with multiple mutually parallel strip-shaped groovesrespectively, the strip-shaped grooves are communicated with the inner portions of the corresponding rectangular grooves respectively, the top face and bottom face of each rectangular groove are provided with two guide holes respectively, the guide holes on the upper portion are collinear with the center line of the corresponding guide holes on the lower portion, each rectangular groove is internally provided with two first racks, the upper and lower ends of each first rack are simultaneously inserted into the corresponding guide holes respectively, and the first racks can move vertically along the corresponding guide holes respectively. The computer controller of the hydraulic climbing frame system has the advantages that the weight is lighter, workers cannot consume more physical strength when moving the computer controller, when the computer controller is not used, a movable rod is located in a third through hole, baffles close off the strip-shaped grooves, thereby being capable ofavoiding the situations that dust enter the box body and the dust is adsorbed on a computer control device to affect the working state of the computer control device.
Owner:JIAOZUO UNIV

Gear box sealing structure of reconnaissance robot

The invention discloses a gear box sealing structure of a reconnaissance robot, and relates to the technical field of gear boxes. The problem that lubricating oil supply of a gear box is inconvenient in a hard environment is solved. The structure specifically comprises an upper box body and a lower box body, and the inner wall of one side of the upper box body is fixedly connected with upper fixing blocks which are evenly distributed through screws; the outer walls of one sides of the upper fixing blocks are fixedly connected with electromagnetic round blocks through screws; the inner wall of one side of the lower box body is fixedly connected with lower fixing blocks which are uniformly distributed through screws; electromagnetic holes are formed in the inner walls of one sides of the lower fixing blocks; a connecting hole is formed in the inner wall of one side of the lower box body; and through holes are machined in the inner walls of the two sides of the upper box body. Gear connecting shafts are rotationally connected to the inner walls of one sides of the connecting hole and the through holes; the peripheral outer walls of the gear connecting shafts are fixedly connected with gear sets; and the outer wall of the top end of the upper box body is fixedly connected with a lubricating oil storage box through screws. By arranging a molybdenum disulfide storage box, it is guaranteed that lubricating oil is supplied to a gear box normally when the reconnaissance robot is in a severe environment.
Owner:江苏万基传动科技有限公司

Circuit board and manufacturing method thereof

A circuit board comprises an inner-layer circuit substrate, an electronic element, a heat storage assembly, a first outer-layer circuit substrate and a second outer-layer circuit substrate. The inner-layer circuit substrate comprises a first inner-layer circuit layer, an inner-layer dielectric layer and a second inner-layer circuit layer which are stacked, and further comprises a first heat conductor which penetrates through the inner-layer dielectric layer and is connected with the first inner-layer circuit layer and the second inner-layer circuit layer; the electronic element is located on the surface of the inner layer circuit substrate and is connected with the first inner layer circuit layer; the heat storage assembly is located on the surface, away from the electronic element, of the inner-layer circuit substrate and connected with the second inner-layer circuit layer. The first outer-layer circuit substrate is positioned on the surface of the inner-layer circuit substrate, which is provided with the electronic element, and covers the electronic element; the second outer-layer circuit substrate is located on the surface, provided with the heat storage assembly, of the inner-layer circuit substrate and covers the heat storage assembly. The invention further provides a manufacturing method of the circuit board. The circuit board with the heat storage assembly has the functions of storing heat and delaying heat release, and concentrated heat release of the circuit board is avoided.
Owner:QING DING PRECISION ELECTRONICS HUAIAN CO LTD +1

Communication power supply cabinet

The invention discloses a communication power supply cabinet, and relates to the technical field of communication, the power supply cabinet comprises a cabinet body and a bearing installation part, the outer wall of the cabinet body is provided with at least one maintenance port, the bearing installation part is arranged in the cabinet body, and the side part of the bearing installation part is hinged to the inner wall, close to the maintenance port, of the cabinet body; the device further comprises a driving piece, a winding roller assembly and a transmission assembly. The winding roller assembly is arranged at the end, away from the overhaul port, of the bearing installation piece and used for winding and combing a wire connected with the communication power supply device. The driving part is arranged on the inner wall of the cabinet body and is used for driving the bearing mounting part to rotate around the hinged part of the bearing mounting part and the side wall of the cabinet body; the transmission assembly is arranged in the cabinet body and used for driving the winding roller assembly to rotate when the bearing installation piece rotates. The power supply device turnover device is simple in structure, the power supply device can be turned over to the cabinet door to facilitate maintenance, and in the turnover process, a wire of the power supply device is loosened or tensioned, so that subsequent disassembly is facilitated, and looseness of the wire after installation is avoided; operation is convenient and practicality is high.
Owner:深圳市国网迈腾电力科技股份有限公司
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