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63results about How to "Reduced chance of burnout" patented technology

Air conditioner outdoor unit

The invention discloses an air conditioner outdoor unit, which comprises a base plate, a top cover, a plurality of support frames, at least one side plate, at least one enclosure plate and a heat exchanger, wherein the top cover is arranged above the base plate and is arranged in a way of being separated from the base plate, the support frames are respectively arranged between the base plate and the top cover and are connected with the edges of the base plate and the top cover, the at least one side plate is arranged between the two adjacent support frames and is connected with the top cover and the bottom plate, the at least one enclosure plate is arranged between the two adjacent support frames and is respectively connected with the top cover and the base plate, the enclosure plate, the side plate, the base plate and the top cover simultaneously define an accommodating cavity, the heat exchanger is arranged in the accommodating cavity, and the enclosure plate can move along the center of the accommodating cavity so that the distance between the enclosure plate and the heat exchanger can be regulated. The air conditioner outdoor unit according to the embodiment of the invention has the advantages that the distance between the enclosure plate and the heat exchanger is adjustable, the problem of incomplete system defrosting due to metal plate icing in low-temperature and high-humidity weather can be solved, the frosting condition of the heat exchanger is effectively reduced, the safety of an air conditioner system is improved, meanwhile, the cabinet loading number is ensured, and the cost is reduced.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1

Improved upper cover oil separating structure for compressor

The invention provides an improved upper cover oil separation structure for a compressor, comprising an upper cover of the compressor and exhaust pipes, wherein, the top of the upper cover is provided with an exhaust hole. The structure is characterized in that the exhaust pipes comprise an upper exhaust pipe and a lower exhaust pipe, wherein, one end of the lower exhaust pipe is connected with the exhaust hole by the inner wall surface of the top of the upper cover, the other end is communicated with the interior of the compressor, and the lower exhaust pipe is provided with an unflatness inner wall surface; an oil separator is arranged on the outer edge of the outer wall surface of the top of the upper cover of the compressor, and the top of the oil separator is communicated with the upper exhaust pipe; when cooling media carrying lubricating oil passes through the exhaust pipes, the action of the lower exhaust pipe of the unflatness inner wall surface and the oil separator causes the lubricating oil in the cooling media to be separated to be returned into the compressor, thereby realizing the effects of effectively reducing the oil output of the compressor, prolonging the service life of the compressor, improving the heat exchange performance of an air conditioner and saving the running cost of the air conditioner.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD

Electric power operation information auditing system based on big data

The invention discloses a electric power operation information auditing system based on big data. The system comprises a power consumption monitoring module, a power consumption data storage module, auser movement track data storage module, a power consumption analysis module, a power consumption abnormality detection module, a power consumption abnormality alarm module, a human body induction module and an in-out time recording module. The system has the beneficial effects that: the method divides the indoor area of the home, determines the current area of the user and the residence time ofthe user in the area, acquires the power consumption data of each area in a certain time period through the power consumption monitoring, further classifies the household electric appliances of each area, acquires preset value of each area according to the area where the user is located and the household electrical appliance classification of each area, and accurately detects whether the power consumption of each area is abnormal or not by comparing the actual power consumption data of each area with the preset value, so that the possibility that the electrical appliance is burnt due to long-time work is reduced, and the potential safety hazard is reduced.
Owner:GUANGDONG UNIVERSITY OF BUSINESS STUDIES

Intelligent precision machining center production line control system

The invention discloses an intelligent precision machining center production line control system. The intelligent precision machining center production line control system comprises a punching platform, supporting columns, a U-shaped plate, installing plates, guide rails, a sliding sleeve, a sliding rod, a T-shaped sliding plate, a slide groove, a motor, a first slider, a second slider, an L-shaped plate, a connection rod, a compressed spring, a connection plate, a hydraulic cylinder, a mold plate, a mold, an inner material stripping cushion, an outer material stripping cushion, a rectangularfeeding port, a PLC and a control panel; the supporting columns are welded to the bottom four corners of the punching platform; the U-shaped plate is welded and fixed to the top of the punching platform; the installing plates are symmetrically fixed to one side of the U-shaped plate; and the guide rails are installed between the installing plates. The production line control system achieves automatic feeding, two times of punching can be achieved through one time of feeding, the hydraulic cylinder is in the work state all the time, the hydraulic cylinder starting frequency is reduced, the possibility that the hydraulic cylinder is burnt is reduced, transverse movement of the mold and stretching and shrinking of the hydraulic cylinder are synchronously performed, time is saved, and therefore the machining speed is increased.
Owner:FOSHAN YIBEIER TECH

Super-continuum spectrum generation device

The invention discloses a super-continuum spectrum generation device. The super-continuum spectrum generation device comprises a high-peak power consumption soliton resonant mode-locked laser and a photonic crystal fiber, wherein the high-peak power consumption soliton resonant mode-locked laser comprises two pumping light sources, two beam combiners, two gain fibers, a filter, a polarization irrelevant isolator and a polarization controller, the first pumping source, a pumping input arm of a first beam combiner, the first gain fiber, an input arm a and an output arm b of a first coupler, thefilter, an input arm b1 and an output arm a1 of a second coupler, the polarization irrelevant isolator and a signal input arm of the first beam combiner are connected to form a single-way ring, an output arm c1 of the second coupler is connected with the photonic crystal fiber, and an output end c of the first coupler is connected with the second beam combiner, a second gain fiber, the polarization controller and an output arm d of the first coupler to form a non-linear amplification annular mirror. By the super-continuum spectrum generation device, the power can be increased to several kilowatt magnitudes, and the super-continuum spectrum generation device is small in energy loss and long in fiber length.
Owner:NAT UNIV OF DEFENSE TECH

Trench gate RC-IGBT and preparation method thereof

The invention discloses a trench gate RC-IGBT. The trench gate RC-IGBT comprises N<+> emitting electrodes, P<+> emitting electrodes, P-base regions and an N<-> layer which are sequentially arranged from top to bottom; the P<+> emitting electrodes are arranged on the upper surfaces of the P-base regions, the P<+> emitting electrodes and the N<+> emitting electrodes are arranged side by side, a plurality of grooves are etched on the upper surface of the N<-> layer, SiO2 gate-oxide layers are arranged in the grooves, polysilicon gates are deposited on the SiO2 gate-oxide layers, the P<+> emitting electrodes, the N<+> emitting electrodes and the P-base regions are located on the same sides of the corresponding grooves, and both the side walls of the N<+> emitting electrodes and the side walls of the P-base regions make contact with the outer surfaces of the side walls of the corresponding grooves; and an N buffer layer is arranged on the back face of the N<-> layer, a P<+> collector is arranged on the back face of the N buffer layer, an N<+> collector is arranged on one side of the P<+> collector, and a plurality of P column regions are arranged on the upper surface of the N<+> collector. According to the trench gate RC-IGBT, the problems that in the prior art, current distribution is non-uniform when a traditional RC-IGBT works forwards, and the reverse recovery peak current is too large when the traditional RC-IGBT works reversely are solved, and the forward voltage drop of devices is significantly reduced by means of the RC-IGBT with the novel structure.
Owner:XIAN UNIV OF TECH

Air conditioner plate louver structure and installation method

The invention discloses an air conditioner plate louver structure and an installation method, and relates to the technical field of air conditioner plate louvers. According to the technical scheme, the air conditioner plate louver structure is characterized by comprising an air conditioner plate and a louver which is installed on the air conditioner plate. The louver comprises three window bodies.Each window body comprises a frame and multiple blades. An adjusting device is arranged on each frame and comprises a sliding groove, multiple rotating shafts, multiple gears, a rack and a driving assembly. The gears are fixedly connected to the same ends of the rotating shafts in a one-to-one correspondence mode. Each rack is connected to the corresponding sliding groove in a sliding movement mode in the vertical direction and used for driving the multiple corresponding gears to rotate. Each driving assembly is installed on the side, close to a wall body, of the corresponding frame and usedfor driving the corresponding rack to move. The blades are fixedly connected to the rotating shafts. The multiple gears are located in the sliding grooves and mesh with the racks. Each sliding grooveis arranged in the mode of penetrating through the top of the corresponding frame. According to the air conditioner plate louver structure and the installation method, the adjusting devices are arranged, the angles of the blades of the louver are conveniently adjusted, and therefore the possibility that an air conditioner outdoor unit has a failure can be reduced.
Owner:东莞市建安集团有限公司

Energy storage system

The present invention relates to the field of energy storage technology, in particular to an energy storage system, which includes a battery system, a battery system control unit connected to the battery system, and an energy storage inverter PCS; the battery system includes at least one set of battery modules , the battery module includes a plurality of single cells in series and a battery management system BMS corresponding to the battery module; the battery system control unit is connected to the energy storage inverter PCS; the battery system control unit collects the state parameters of the battery system, Determine the fault type of the battery system according to the state parameters and report the fault type to the energy storage inverter PCS, and the energy storage inverter PCS controls the charging / discharging of the battery system according to the fault type; the present invention can report the fault type, which is beneficial to the user in a timely manner Faults are found and necessary measures are taken. The energy storage inverter PCS can control the charging / discharging of the battery system according to different types of faults, which further improves the safety of the battery system and is beneficial to prolong the service life of the battery system.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

Street lamp variable switch intelligent control device and control method thereof

The invention provides a street lamp variable switch intelligent control device. The device comprises a street lamp and a plurality of LED lighting lamp sets arranged in a lamp box of the street lamp,and each LED lighting lamp set is connected with a single-chip microcomputer through a relay of the LED lighting lamp set. The device further comprises a radar used for sensing passing pedestrians and vehicles, and the radar is connected with the single-chip microcomputer. According to the control method, the single-chip microcomputer generates pulse signals from induction signals generated by the radar and counts the pulse signals, and the multiple of the count of the pulse signals in unit time and a set threshold value serves as a comparison value to control the lighting number of the LED lighting lamp sets. On one hand, the number of lightened LED lighting lamp sets can be correspondingly reduced, and electric energy consumption is reduced; and on the other hand, all the LED lighting lamp sets are lightened in turns. All the LED lighting lamp sets are lightened in turn, so that the probability that the LED lighting lamp sets are burnt out due to heating is reduced, meanwhile, the average lightening time of all the LED lighting lamp sets is shortened, and the service life of the whole LED lighting lamp sets is prolonged. The contradiction between street lamp lighting service andenergy consumption is solved, which has great significance.
Owner:STATE GRID CORP OF CHINA +2

Thermal protection system of LED backlight light bar

The invention relates to a thermal protection system of an LED backlight light bar. The thermal protection system comprises a voltage detection unit, a processing control unit, a driving unit and a plurality of temperature control switches, wherein the temperature control switch is used for being connected with a lamp bead on the LED backlight lamp bar in parallel and is closed when the temperature of the lamp bead is higher than a preset temperature value; the voltage detection unit is used for detecting the voltage of all lamp beads on the LED backlight lamp bar in real time and outputting a voltage detection signal; the processing control unit is used for outputting a control signal when the voltage value reflected by the voltage detection signal is reduced; and the driving unit is used for reducing the size of a driving current for driving the LED backlight light bar to emit light when receiving the control signal. When the temperature of a certain lamp bead exceeds a preset temperature value, the corresponding temperature control switch can be switched on, so that the lamp bead is short-circuited. When the temperature of the lamp bead reaches the preset temperature value, the processing control unit can control the driving unit to reduce the driving current so as to reduce the heating value of the lamp bead and further reduce the probability that the lamp bead is burnt down.
Owner:QINHUANGDAO YUANZHOU INDAL GAS +1

A refined primary harmonic elimination device and control method based on temperature control

The invention discloses a refined primary harmonic elimination device based on temperature control, which includes an infrared thermometer, a controller, and a harmonic eliminator, and the infrared thermometer, the controller, and the harmonic eliminator are connected in sequence, wherein the harmonic eliminator includes Sub-resonance eliminator I, sub-resonance eliminator II, sub-resonance eliminator III, control switch I, control switch II, sub-resonance eliminator I, sub-resonance eliminator II, and sub-resonance eliminator III are connected in series to N line and ground in sequence Between the lines, the control switch I is connected in parallel with the sub-resonance eliminator II, the control switch II is connected in parallel with the sub-resonance eliminator III, and the controller is respectively connected with the control switch I and the control switch II; this device is suitable for primary resonance elimination of voltage transformers, Taking into account the capacity expansion of the resonance eliminator brought about by the substation and line capacity, the use of linear high-resistance resistors instead of nonlinear resistors for resonance elimination, and the use of temperature to achieve fine control can improve the scalability and reliability of the primary resonance eliminator. And avoid the non-linear influence on the system when the non-linear resistor eliminates the harmonic.
Owner:WENSHAN POWER SUPPLY BUREAU YUNNAN GRID

A transformer spiral winding cable arrangement

The invention discloses a spiral winding arranging device of a transformer. Equal internal threading grooves symmetrically distributed relative to the central vertical axis and four installation long-strip holes for a wire baffle are formed in the two ends of a threading plate, wherein the number of the equal internal threading grooves is multiples of four. The long-strip holes are located in the upper edge and the lower edge of the threading plate, and four installation holes for an adjusting plate are formed in the upper ends and the lower ends of the left and right middle positions of the threading plate. An adjusting plate is fixed to a support and provided with two vertical twos of fixing holes. The wire baffle is fixed to the threading plate in a left-right position adjustable mode. The lower end of the support is fixed to a base, or a hanging plate is fixed to the upper end of the support. By means of the spiral winding arranging device, a wire can be neatly wound in parallel, the tension force of the wire wound in parallel is consistent, the probability of burning of the transformer is reduced, and the safety performance of the transformer is improved; besides, both a single-spiral structure and a dual-spiral structure can be used, and thus university is high.
Owner:CHINA RAILWAY ELECTRICAL IND CO LTD

Intelligent control device and control method for street light switch

An intelligent control device for a street lamp switch, comprising a street lamp and multiple groups of LED lighting lamp groups arranged in the street lamp light box, each group of LED lighting lamp groups is connected to a single-chip microcomputer through its own relay; it also includes a sensor for sensing passing pedestrians and vehicles Radar, the radar is connected with the microcontroller. A control method uses a single-chip microcomputer to generate and count pulse signals from induction signals generated by radar, and uses the count of pulse signals per unit time and the multiple of a set threshold as a comparison value to control the lighting quantity of LED lighting groups. On the one hand, the present invention can correspondingly reduce the lighting groups of LED lighting groups and reduce power consumption, and on the other hand, make each LED lighting group be turned on. The alternate lighting of each LED lighting group reduces the probability of the LED lighting group being burned due to heat, and also reduces the average lighting time of each LED lighting group, prolonging the service life of the entire LED lighting group. The invention solves the contradiction between street lamp lighting service and energy consumption, and has great significance.
Owner:STATE GRID CORP OF CHINA +2

Pipe gallery fire information collection system and method for judging fire door opening timing

The invention provides a fire information collection system for a pipe gallery and a method for determining the opening timing of a fire door, which are used to solve the problem that the opening time of the fire door and the smoke exhaust system cannot be determined. Wherein, the system includes: a first carbon monoxide concentration detection module, a first temperature acquisition module, a first data transmission module, a second carbon monoxide concentration detection module, a second temperature acquisition module; a second data transmission module; a first carbon monoxide concentration detection module, The first temperature collection module is connected to the first data transmission module; the second carbon monoxide concentration detection module and the second temperature collection module are connected to the second data transmission module. The system of the present invention can effectively reduce the possibility of the acquisition module and the transmission module being burned during a fire, and then can collect the carbon monoxide concentration information and temperature information in the fire area in real time, so that the firefighters can monitor the fire situation in the fire area in real time and accurately calculate / know it Timing to open fire doors.
Owner:CHINA ACAD OF SAFETY SCI & TECH
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