209results about How to "Avoid energy waste" patented technology

Disclosed is a clothes dryer having a heat pump, the clothes dryer capable of enhancing energy efficiency by recovering waste heat to the maximum in correspondence to a capacity of the heat pump, capable of enhancing reliability by preventing overheating of a compressor and a heat exchange means, and capable of shortening drying time. The clothes dryer includes a body, a tub rotatably installed in the body, a suction duct installed at the body, and configured to suck external air and to supply the external air into the tub, an exhaustion duct configured to exhaust air having passed through the tub to outside of the body, and a heat pump having a heat exchange means for recovering waste heat by heat-exchanging air passing through the exhaustion duct, wherein part of the air exhausted via the exhaustion duct is heat-exchanged with the heat exchange means of the heat pump.

The present invention is a system, apparatus, and method for a “Priority” field that is included in the information transmitted by an Access Point (AP) (801i) about its neighbor APs (801i) and the network service providers (SPs) that it supports. A “Priority” field (103i-6 154i.2 203.i.2 233 266) is included in at least one of a Neighbor Report element (100), an AP Channel Report element (150), and a service provider's information element (200 230 260). The service provider priority field (203.i.2 233 266) is contained in any protocol frame transmitted by the AP (801i) that contains information about one or more service providers that it supports. The “Priority” field (103i.6 154-i.2 203.i.2 233 266) contains a numeric value or a symbolic indicating a recommendation from the AP (801i) concerning which AP / APs and service provider(s) SP / SPs for a STA (802j) to scan first or access in an eventual roaming / accessing process. For roaming / accessing purposes, more than one neighboring AP (801i) can have the same priority value and not all the APs (801i) that are neighbors or support SPs necessarily have the same priority value.

A power controller for applying power to an induction motor or similar AC load has a variable drive circuit for staring and switching a portion of the AC input line power. In one mode, the input line power is fed straight through to the load. In another mode, the AC waveform is reshaped to improve the power factor or to boost its RMS value, e.g., for brownout protection. In a further mode the output power can be provided at a different frequency from the input line power. Vector control increases efficiency through power optimization, with sensing of load requirements. Sensing of regeneration pulses at the commencement of a half cycle can be employed for direct sensing of motor speed or load.

The invention relates to the technical field of air conditioners and provides a method and a device for forecasting air-conditioning load and an air-conditioner. The method comprises steps of acquiring the parameter amount affecting the air-conditioning system load; inputting parameters to an air-conditioning load forecasting neuronic network model which is trained in advance; and acquiring the prediction value of the air-conditioning load. The air-conditioning hourly load of the air-conditioning system can be predicted accurately, the refrigerating capacity changes with the air-conditioning load, the energy is not wasted, the operation and the adjustment of a water cooling unit has a basis, and the water cooling unit can operate at the best efficiency state.

A portable remote wireless control for establishing different temperatures in separate portions of a building. The remote control not only regulates hot and cold airflow through rotatable damper vanes in one or more diffusers, but it also recharges the batteries that power the wireless receiver, servomotor and servomotor controls that selectively rotate the damper vanes. Damper vane rotation regulates air flow from the diffuser to control the temperature in the portion of the building. The damper vanes, moreover, are of a light plastic with a marginal band of a foam material to enable the vanes to rotate silently and freely also to form a seal that eliminates a great deal of air seepage past the individual vanes.

A switchboard copper busbar heat dissipating device for dissipating heat from a copper busbar inside a switchboard includes a thermally-conductive electrically-insulating plate having a first surface connected to the copper busbar and a second surface; at least one heat pipe having a first end connecting to the second surface of the thermally-conductive electrically-insulating plate and a second end protruding out of the switchboard; and a plurality of cooling fins connected to the second end of the heat pipe and disposed outside the switchboard. Hence, the switchboard copper busbar heat dissipating device is conducive to miniaturization of a switchboard, enhancement of efficiency of heat dissipation of the switchboard, compliance with the Ingress Protection (IP) Ratings of the switchboard (regarding waterproofing and dust-proofing thereof), and avoiding a waste of energy.

An arrangement (1) for air management of a room (100) comprises ventilating means (10) for enabling exchange of air between the inside environment (102) of the room (100) and the outside environment (103) of the room (100); a stand-alone air purifier (20), which is arranged separately from the ventilating means (10), and which is adapted to remove pollutants from the air in the inside environment (102) of the room (100); and a control system (30, 31, 32), which is in communication with both the ventilating means (10) and the air purifier (20), and which is adapted to control operation of the ventilating means (10) and the air purifier (20) in dependence of air quality data relating to the inside environment (102) of the room and the outside environment (103) of the room, the control system (30,31,32) being configured to control the ventilating means (10) and the air purifier (20) differently depending on whether the air quality data relating to the outside environment of the room (100) is above or below a predetermined reference. Operation of the arrangement (1) is aimed at optimizing indoor air quality and minimizing energy consumption.

The invention provides a method for managing access points (AP), an access controller (AC) and an access point (AP), wherein the method comprises the following steps: determining whether the activation condition or the sleep condition of AP is met or not by the AC, and informing the AP to enter a running state from a sleep state when the activation condition of the AP is met; and informing the AP to enter the sleep state from the running state when the sleep condition of the AP is met and keeping connection with the AC when the AP is in the sleep state but not providing access service for any user terminal. The invention can flexibly increase or decrease the number of the AP which provides access service as required, reduce the power consumption and avoid the energy waste.

An envelope-tracking power supply modulator (ETSM) supplies power to a radio frequency power amplifier (RFPA) of a radio frequency (RF) circuit according to a baseband envelope signal. The ETSM includes a linear amplifier, a capacitor, a single inductor multiple output (SIMO) switch-mode converter, and a controller. The linear amplifier receives the baseband envelope signal, and has its output terminal coupled to a power input of the RFPA. One terminal of the capacitor is coupled to a reference voltage, and the other terminal is coupled to a power input of the linear amplifier. The SIMO switch-mode converter includes two output terminals. One of the output terminals is coupled to the capacitor and the power input of the linear amplifier, and the other of the output terminals is coupled to the output terminal of the linear amplifier and the power input of the RFPA. The controller controls the SUMO switch-mode converter.

The invention discloses an indoor electric appliance linkage control system based on the Internet of things. The indoor electric appliance linkage control system comprises a gateway and further comprises an air conditioner system, a fresh air system, a floor heating system and an air quality detecting system which are connected with the gateway. The gateway is connected with an intelligent terminal through a server. The air quality detecting system comprises a PM2.5 sensor, a PM10 sensor, a temperature and humidity sensor, a formaldehyde sensor, a carbon dioxide sensor and a TVOC sensor. The air conditioner system, the fresh air system and the floor heating system are controlled in real time in a centralized mode through indoor and outdoor air quality indexes, unnecessary energy waste is avoided, multi-step operation of a user is avoided, and the using experience of the user is improved.

Disclosed is a combined energy supply system of wind, photovoltaic, solar thermal power and medium-based heat storage, capable of storing the energy which would have been “abandoned wind” and “abandoned light” temporarily in the form of heat by medium-based energy storage. Heat is released during peaks in the power grid to generate power, which serves the function of adjusting the peaks in the power grid. With the medium-based energy storage, unstable photovoltaic electric energy can be converted into stable heat energy output when a relatively large fluctuation occurs in wind and photovoltaic power generation, and therefore the stable supply of energy sources can be guaranteed efficiently. Furthermore, a second heater can also be used for heating the low-temperature media outputted by a first medium tank (100), or a third heater is used for heating water in a heat exchanger (500), and therefore the energy storage of the medium or the heating efficiency of the heat exchanger is improved.

Disclosed is a power source device having a standby power-cutoff function, which is to be used to charge a battery. The power source device comprises: a micro-USB connector (24) for connecting to the power source unit (20) of a smartphone when the battery of the smartphone or the like is to be charged; and a power generation unit (32) supplying DC charging power to the smartphone (20) from an AC input power source. The present invention includes: a control unit (33) having at least one microprocessor for controlling the overall operation and functioning of a power source device (30); a power supply / cutoff unit (34) supplying / cutoff the AC input power to the power generation unit (32) according to the control of the control unit (33); and a current-sensing unit (CT) connected so as to monitor the current from the power supply / cutoff unit (34), provide the control unit (33) with the current, and provide an indication of the charging state of the battery. The power source unit (20) of the smartphone also includes a first backflow-preventing unit (22) connected between the battery (21) and the control unit (33) so as to prevent the DC power from the power source device (30) from being directly applied to the battery (21) during charging, and the power source device (30) further includes a second backflow-preventing unit (31) which is connected between the DC charging voltage output terminal of the power generation unit (32) and the power supply voltage (Vc) of the control unit (33).

A projector projecting an image onto a screen, comprises a lamp emitting light; an optical system having an optical synthesizer including a blue panel, a green panel and a red panel, and an optical component disposed along an optical path from the lamp to the optical synthesizer; a cooling fan generating cool air cooling the optical system; and a guiding duct guiding the cool air to be distributed into a first passage and a second passage. With this configuration, the present invention provides a projector in which a guiding duct is partitioned and therefore cool air is distributed according to whether the cool air is sent to a relatively high temperature place or a relatively low temperature place in an optical system, preventing energy from being wasted by efficiently cooling some components of the optical system without overcooling others, and reducing noise caused by a cooling fan and air flow.

The invention belongs to the technical field of air conditioners, in particular to a defrosting control method of an air conditioner, which comprises the following specific steps: (1) judging whether a remote controller has the shutdown defrosting function or not during the shutdown in the heating circulating operation state; (2) if the remote controller has the shutdown defrosting function, reading memory data of an EEPROM IC, leading the remote controller to firstly close an indoor unit, detecting the temperature of a piping, setting critical temperature value A of whether to start defrosting or not, and comparing the detected temperature of the piping with the set critical temperature value; if the temperature of the piping is smaller than the critical temperature value A, then judging whether an outdoor unit needs to carry out defrosting or not, and leading the outdoor unit to run continuously and carry out the defrosting; and (3) finishing the defrosting, and leading the indoor unit and the outdoor unit to enter into the complete shutdown state. The defrosting control method can completely remove frost of the outdoor unit after the shutdown of the indoor unit by starting the shutdown defrosting function, prevent the frost from icing due to long-term retention, avoid the unnecessary waste of energy caused by a longer period of defrosting time during the next startup, ensure the normal operation of heating circulation and effectively improve the heating performance of a heat room of the air conditioner.

An organic light-emitting display with a solar cell includes a first substrate, a second substrate, a plurality of organic light-emitting units, and at least one solar cell unit. The second substrate is disposed oppositely to the first substrate and has an inside surface facing the first substrate. The organic light-emitting units are arranged as an array on the inside surface of the second substrate. The second substrate has non-emission regions positioned between any two adjacent light-emitting units. The solar cell unit is disposed in one of the non-emission region for receiving the light generated by the solar cell units to produce current.

A hot water storage type hot water supply device is capable of heating water inside a hot water storage tank appropriately, thereby preventing energy waste. A circulating pump is operated and a burner is incinerated, when the average of detected temperatures from water temperature detectors falls below a predetermined lower limit temperature. The burner is extinguished when an accumulated heating amount from the beginning of operation of a heat source equipment becomes equal to or more than a target heating amount necessary for elevating the total amount of water in the hot water storage tank to a preset hot water delivery temperature. The circulating pump is continuously operated after extinguishing the burner, until an accumulated circulated water amount of a circulating path becomes equal to or more than a predetermined water amount set to be equal to or more than a capacity of the hot water storage tank.

A clothes drying cabinet which consists of a base, a frame, a cover and a control unit is disclosed. A heat source, a warm air cushion chamber and a clothes drying chamber are provided inside the clothes drying cabinet. The heat source comprises a fan motor and a PCT heating element. The frame is positioned on the base and supported by the hanger braces. The division plate for the warm air cushioning chamber forms the warm air cushioning chamber with the protection plate of the warm air channel in the lower parts and forms the cloth drying chamber. The frame is covered outside by the cover. The control unit comprises a control panel and switches. The clothes drying effect can be improved and the drying speed can be increased, furthermore the clothes drying cabinet is safe so that the danger due to clothes falling down can be prevented.

A method and system for monitoring energy consumption is provided. The method for monitoring energy consumption estimates a number of people in a room based on an indoor CO2 concentration, and determines whether an amount of energy consumed indoors is proper or not based on the estimated number of people in the room. Accordingly, a waste of energy can be prevented by monitoring when a proper amount of energy is consumed in comparison with the number of people in a room. In addition, the number of people in the room can be easily estimated at low cost prior to determining whether energy consumption is proper or not.

This invention provides a cooperative coverage method for distribution network information perception. The cooperative coverage method includes the following steps: construction of connected cooperative coverage sets, which can cover all target nodes with as few information perception nodes as possible, and maintain the connectivity of each cooperative coverage set with connected sets construction methods based on of hierarchical clustering; Cooperative coverage set scheduling, introducing the concept of energy ratio threshold, dividing the life cycle of the system into multiple time slices, calculating the energy ratio of perception device set in each time slice to realize the set scheduling. The invention realizes the efficient utilization of the energy of the perception device through the construction and scheduling of the connected coverage set in different time slices, and improves the use efficiency of the information perception network.

The invention relates to the defrosting and demisting fields of glass products, in particular to the temperature measurement technologies of electric heating glass, and concretely provides an automotive glass system capable of automatic defrosting and demisting, a defrosting method and a demisting method. The automotive glass system capable of automatic defrosting and demisting comprises automotive glass and a power source and further comprises a control unit, a humidity sensor and a current measurement device / resistance measurement device. The humidity sensor is arranged in an automobile to measure the moisture content d of air inside the automobile. The current measurement device / resistance measurement device can measure current I or resistance R of an electric heating element after the electric heating element is powered on. According to the automotive glass system, the defrosting method and the demisting method, the potential safety hazard that glass misting affects the sight of a driver can be eliminated, the safety performance and comfort of automobile driving are improved, and meanwhile a good energy-saving effect is achieved; in the defrosting process, the operation of the driver is simplified, unnecessary energy waste is avoided, the waiting time of the driver in the defrosting process is shortened, and user experience is improved.

An automatic cold water feed-back mechanism for a single handled faucet includes a valve housing for a valve stick, a base mount, a switching valve, a valve seat to be adapted therein, a limiting valve mounted at the upper section of the valve housing, and a cold water feed-back mechanism made up of an actuating member and a spring member to be mutually engaged with the limiting valve thereof. The valve stick is provide with a linkage rod properly protruding at the upper surface of a valve stick seat thereon to be fixedly attached to a locating support block of the actuating member thereof. In operation when the valve stick is switched off at the position of either mixed cold / hot water or hot water discharge, the valve stick is flexibly retracted back to its position of cold-water discharge via the spring member of the cold water feed-back mechanism thereof. Thus, the faucet can automatically resume its position and safely keep in the state of cold-water discharge if switched open again in use, efficiently avoiding the ignition of a hot water supplier instantaneously so as to prevent the waste of energy, and securely protecting the safety of children in the family without being scared or even scalded by hot water accidentally in practical use.

The invention discloses a hydraulic damping energy recovery device of an automobile. The hydraulic damping energy recovery device comprises a hydraulic cylinder (5), the hydraulic damping energy recovery device further comprises a hydraulic electric generator (6), and an oil port of the hydraulic cylinder (5) and an oil port of the hydraulic electric generator (6) are connected through oil pipes (9). The oil pipe (9) between a rod cavity oil port and an oil inlet is provided with a first check valve (1), the oil pipe (9) between an oil outlet and a rodless cavity oil port is provided with a second check valve (2), the oil pipe (9) between the rodless cavity oil port and the oil inlet is provided with a third check valve (3), and the oil pipe (9) between the oil outlet and the rod cavity oil port is provided with a fourth check valve (4). The mode that the hydraulic electric generator converts vibration energy into electric energy is used, the vibration energy is reasonably recycled, and energy waste is avoided. The invention further discloses the automobile including the hydraulic damping energy recovery device.

A method for solar power energy management with intelligent selection of operating modes classifies the power energy of a solar cell and an reserved power of a rechargeable battery into multiple power level ranges, and determine to supply power to a load in accordance with various combinations of the power level ranges of the solar cell and the rechargeable battery to avoid energy waste. When the solar cell is in a “sufficient” power level range, the power energy of the solar cell is simultaneously supplied to the load and stored in the rechargeable battery. When the solar cell is in an “insufficient” power level range, all the power energy of the solar cell is selectively supplied to the load or charged to the rechargeable battery. When being in a “poor” power level range, the power energy of the solar cell can still be charged to the rechargeable battery.

The present invention provides with a power saving method for the electrical heating food processing device of temperature-controlled, which applied the thermal sensor dynamic senses the temperature of the heater; and the microprocessor judges that whether the real-time sensed temperature signal is within the corresponding temperature interval, then deals with the data. The microprocessor judges that whether the continuous-time length of the corresponding temperature interval exceeds the preset time threshold on the basis of the judgment of the temperature interval. If does, reduce the temperature or shutdown the power, otherwise return to the normal working mode. It realizes automatically temperature reduction and automatically shutdown when the food processing device is unused. The temperature reduction automatically can reduce the temperature difference of the heater and the surrounding environment, which can realize the energy consumption reduction; the shutdown automatically can avoid energy wasting due to long period of empty load of the food processing device, which can realize the power saving.

The invention is directed to a method for controlling a deceleration process of a DC motor (20), wherein the DC motor (20) is driven by a bridge driver (18) coupled to a power supply (12) intended to provide a supply voltage VDD at a power supply output (14), the method comprising the following steps: applying a deceleration PWM signal to the bridge driver (18) for decelerating the DC motor (20), and controlling the bridge driver (18) such that a motor-induced back current is reduced, if the voltage at the power supply output (14) exceeds a first voltage threshold which is higher than VDD. In accordance with the invention the method comprises the following step: if the voltage at the power supply output (14) falls below a second voltage threshold which is lower than the first voltage threshold, terminating controlling the bridge driver (18) such that the motor-induced back current is reduced. The invention is also directed to a controller (10) for controlling a deceleration process of a DC motor (20) which is driven by a bridge driver (18) coupled to a power supply (12) intended to provide a supply voltage VDD at a power supply output (14), the controller (10) comprising: means (22) for applying a deceleration PWM signal to the bridge driver for decelerating the DC motor, and means (24, 26, 28; 24, 30) for controlling the bridge driver (18) such that the motor-induced back current is reduced, if the voltage at the power supply output (14) exceeds a first voltage threshold which is higher than VDD. In accordance with the invention the means for controlling the bridge driver (18) such that the motor-induced back current is reduced are adapted to terminate controlling the bridge driver (18) such that the motor-induced back current is reduced, if the voltage at the power supply output (14) falls below a second voltage threshold which is lower than the first voltage threshold.

An integrated drying and dry-separating apparatus for upgrading raw coal includes a coal supply system, a hot air system, a drying system, a dedusting and exhausting system, and a dry-separating system. The coal supply system conveys raw coal to the hot air system and the drying system by a raw coal conveyer respectively. The hot air system is a heat source of the drying system. The drying system is used for drying and dewatering the raw coal. The dedusting and exhausting system is consisted of a deduster and an exhaust fan, and establishes a connection between the drying system and the dry-separating system. The dry-separating system includes a dry separator, a circulating fan, and a cyclone deduster, which is used for separating dried raw coal into fancy coal, middling coal and coal gangue. A method for dry-separating and drying raw coal using the apparatus is also provided.

The invention discloses a device and method for treating organic waste gas through synergistic catalysis of plasma. The device comprises an absorbing tower, a plasma reactor, a catalytic reactor and a gas analysis instrument, wherein the absorbing tower, a plasma reactor, a catalytic reactor are sequentially connected; a controlled three-way valve is arranged at a gas inlet of the absorbing tower and is used for respectively communicating a waste gas inlet with gas inlet of the absorbing tower or the waste gas inlet with a bypath of the absorbing tower; a controlled three-way valve is arranged at a gas inlet of the plasma reactor and is used for respectively communicating a gas outlet of the absorbing tower with a gas inlet of the plasma reactor or the gas outlet of the absorbing tower with a bypath of the plasma reactor; a detection point is arranged at a waste gas inlet, the gas analysis instrument is used for detecting waste gas in real time through the detection point, outputting control signals to the controlled three-way valves according to a detection result and controlling the switching of the controlled three-way valve. According to the device, the operation states of an airflow path and each processing unit are automatically controlled according to waste gas components, so that the unnecessary energy wasting is avoided.