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 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.

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.

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).

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 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 strike mechanism (1) of a watch includes a gong (21), which is secured by one end thereof to a gong-carrier (22) integral with a plate, a hammer (2) rotatably mounted on the plate for striking the gong (21) at predetermined times, a damping counterspring (5) for keeping the hammer at a distance from the gong (21) in an idle mode, and a spring (3) for driving the hammer. The drive spring includes one end (3b) secured to the plate and one end (3a) that is free to move. The spring is capable of being wound so that the free end (3a) of the spring drives the hammer (2) against the gong (21) in a strike mode to generate an acoustic sound. The strike mechanism further includes a stop member (10) on the path of the hammer drive spring in the direction of the gong for increasing the strike speed following contact of an intermediate part of the drive spring (3) in action against the stop member.

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.