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1315 results about "Air door" patented technology

An air door or air curtain is a device used to prevent air or contaminants from moving from one open space to another. The most common use is a downward-facing blower fan mounted over an entrance to a building, or an opening between two spaces conditioned at different temperatures.

Downstream type tobacco-dryer exit tobacco-shred water control method

The invention discloses a method for controlling moisture of tobacco shreds at an outlet of a parallel-flow tobacco dryer, and relates to a production control method in the tobacco industry. The method is characterized in that: in a production phase, the required value of the moisture of the tobacco shreds at the outlet is taken as a target, the precedence of control and adjustment is determined according to the opening degree of a moisture draining air door and a hot wind air door, the temperature of hot wind and the temperature of a wall; the overall principle is firstly controlling and adjusting the parameters which have little impact on the internal quality of the tobacco shreds and the smoking and then controlling and adjusting the parameters which have great impact on the internal quality of the tobacco shreds and the smoking; the sequence is as follows: (1) first the opening degrees of the moisture draining air door and the hot wind air door are controlled and adjusted; (2) then the hot wind temperature is controlled and adjusted; (3) and finally the wall temperature is controlled and adjusted. The method for controlling moisture content of tobacco shreds has the advantage that the wall temperature is basically kept constant in the production process, which is beneficial to stabilizing and unifying the inner quality and style of the tobacco products. The method can provide a technical means for individualized production and classification processing of the cigarettes.
Owner:WUHAN TOBACCO GROUP

Vehicle HVAC (high voltage alternating current) air inlet system and control method thereof

InactiveCN102225683ALow costThe control method is easy to implementAir-treating devicesVehicle heating/cooling devicesIn vehicleEngineering
The invention aims at providing a vehicle HVAC (high voltage alternating current) air inlet system and a control method thereof; the system can be used for effectively reducing the entry of the external dust, reducing the harmful gas volatilized by interior ornaments in a vehicle, and greatly improving the comfort level of the vehicle. The vehicle HVAC air inlet system comprises an HVAC air inlet, an inner-outer circulation control air door, a servo motor for driving the inner-outer circulation control air door, and a control unit; the HVAC air inlet comprises an outer circulation air inlet and an inner circulation air inlet; the inner-outer circulation control air door is arranged at the inner circulation air inlet or the outer circulation air inlet; and the control unit is connected with the servo motor. The vehicle HVAC air inlet system is characterized in that the control unit is respectively connected with an in-vehicle air quality sensor and an in-vehicle temperature sensor which are mounted in the vehicle as well as an out-vehicle air quality sensor and an out-vehicle temperature sensor which are mounted out the vehicle. The vehicle HVAC air inlet system is low in cost, and the control method thereof is easy to realize and can meet the requirements of human health and comfort level.
Owner:CHERY AUTOMOBILE CO LTD

Method for controlling air-cooled refrigerator

The invention relates to a method for controlling an air-cooled refrigerator. The air-cooled refrigerator comprises a cold storage chamber and a freezing chamber; a compressor, an evaporator, a fan motor and a freezing chamber temperature sensor are arranged in the freezing chamber; a cold storage chamber temperature sensor is arranged in the cold storage chamber, and a cold storage air door for controlling the temperature of the cold storage chamber is arranged in an air duct between the cold storage chamber and the freezing chamber; and the freezing chamber temperature sensor, the cold storage chamber temperature sensor and the cold storage air door are connected with a controller of the air-cooled refrigerator. The method for controlling the air-cooled refrigerator comprises the following steps of: acquiring temperatures of the chambers through the freezing chamber temperature sensor and the cold storage chamber temperature sensor, and controlling the compressor, the fan motor and the cold storage air door through the controller to realize synchronization of refrigerating cycles of the chambers, wherein start of the compressor is only controlled by the temperature of the freezing chamber, and operation and stop of the compressor are controlled by the temperature of each chamber. By the controlling method, the start time of the compressor can be reduced, the refrigerating efficiency is improved, and an aim of reducing the operating energy consumption of the refrigerator is fulfilled.
Owner:HISENSE RONSHEN GUANGDONG REFRIGERATOR

Control method, device and system of vehicle air conditioner and vehicle

The embodiment of the invention discloses a control method, device and system of a vehicle air conditioner and a vehicle. The control method comprises the steps that parameters of the environment of the vehicle, a vehicle running parameter and air conditioner parameters set by a user are acquired; the environment parameters comprise outside temperature, inside temperature, inside humidity, outsideair quality, air conditioner water temperature and sunlight radiation strength; the vehicle running parameter comprises engine rotation speed; the air conditioner parameters set by the user comprisetarget temperature and a mode type; the working state of the air conditioner is determined according to at least one of the environment parameters, the vehicle running parameter and the air conditioner parameters; and the working state of the air conditioner comprises the state of an air door motor, the opening of an electric control water valve, the operation time of a compressor, the states of inner and outer circulation motors and the state of a blast capacity tap position. By adopting the control method, convenience for control of vehicle air conditioner can be improved, so that human bodythermal comfort requirements can be met timely by a inside-vehicle temperature field.
Owner:FAW JIEFANG AUTOMOTIVE CO

Heat pump drying equipment with dehumidification and humidity elimination switching function and drying method

The invention discloses heat pump drying equipment with a dehumidification and humidity elimination switching function and a material drying method. The heat pump drying equipment comprises a heat pump system and a drying workshop, wherein the drying workshop is internally provided with a heat pump host machine room, a return air passage and a drying room; the top of the return air passage is higher than the drying room, and an air outlet communicated with the return air passage is formed in the right side of the drying room; the return air passage is internally provided with a humidity elimination air passage, and the other end of the humidity elimination air passage stretches into the heat pump host machine room; an internal circulation air door is arranged between an exhausting room and the heat pump host machine room, and an exhaust air door is arranged on the side wall of the exhausting room; the heat pump host machine is internally provided with a fresh air passage, a heat recycling device is arranged at the joint of the fresh air passage and the humidity elimination passage, and an internal fresh air door is arranged on the fresh air passage. The heat pump drying equipment with the dehumidification and humidity elimination switching function disclosed by the invention is compact in structure, and is matched with the drying method; optimal operation modes can be selected according to specific conditions, all advantages of each mode are synthesized, the influences of the defects of each mode are reduced through mode switching, the energy consumption is low, and the drying efficiency is high.
Owner:HENAN BAIHENG ENERGY SAVING TECH

Air duct device of refrigerator and full-variable-temperature refrigerator

ActiveCN105402978AControl the air intake at any timeControl the return air at any timeLighting and heating apparatusDomestic refrigeratorsFreezing chamberAir door
The invention discloses an air duct device of a refrigerator and the full-variable-temperature refrigerator. The air duct device comprises a front air duct cover plate, a front foam air duct, a rear foam air duct, two air doors, a rear air duct cover plate and a centrifugal fan assembly, wherein the front air duct cover plate is mounted on the wall of the inner chamber of the refrigerator; the front foam air duct is mounted on the front air duct cover plate; the rear foam air duct is mounted on the front foam air duct; the two air doors are mounted on the rear foam air duct; the rear air duct cover plate is mounted on the front air duct cover plate; an air duct is defined by the front air duct cover plate, the front foam air duct, the rear foam air duct and the rear air duct cover plate in a sealed manner; and the centrifugal fan assembly is positioned in the air duct, and is mounted on the front air duct cover plate. The air duct device and the full-variable-temperature refrigerator can control the storage temperatures of all chambers to achieve the function that the temperatures of all the chambers can be varied arbitrarily, so that the functions of a refrigeration chamber, a freezing chamber and a variable-temperature chamber can be defined according to own requirements by users.
Owner:CHANGHONG MEILING CO LTD

Integral energy-saving type air-conditioning unit in computer room

The invention discloses an integral energy-saving type air-conditioning unit in a computer room, which is an energy-saving air-conditioning unit with high precision and high reliability. In the air-conditioning unit, the center of a shell is provided with a clapboard which divides the inside of the shell into an upper chamber and a lower chamber and is provided with an air door capable of being opened and closed; an actuator is connected with the air door to perform opening and closing actions; the inside of the upper chamber is provided with an evaporator blower, an evaporator and a compressor; the top of the shell is provided with an indoor air outlet, and the lateral surface of the shell is provided with an indoor air inlet; the inside of the lower chamber is provided with an air cooled condenser and a condenser blower; and the lateral surface of the shell of the lower chamber is provided with an outdoor air outlet and an outdoor air inlet. The air-conditioning unit integrates the outdoor air cooled condenser, condenser blower, the compressor, the evaporator and the like into a framework, and can realize three refrigeration modes: a mechanical refrigeration mode, a mixed refrigeration mode and a natural cooling mode. When the temperature and the humidity of an outdoor environment are proper, the air-conditioning unit can automatically switch to operate under the mixed refrigeration mode or the natural cooling mode so as to achieve the aim of energy saving.
Owner:NANJING CANATAL DATA CENT ENVIRONMENTAL TECH CO LTD

Paper pulp molding drying line based on variable-frequency control technique and preparing process thereof

InactiveCN101329136AAutomatic realization of segmental temperature controlIncrease productivityDrying gas arrangementsDrying machines with progressive movementsThermal energyAir volume
The invention discloses a drying line of pulp moulding that is based on a frequency-varying speed regulation technique, and a production technique of the drying line, and is applied into a belt drying line with convectional hot air and used for designing a set of automatic controlling systems with optimized efficiency; the invention implements the modeling of complex objects according to the drying property of pulp moulding and different sizes and weights of wet ground papers, adopts a process control technique, the alternate-current frequency-varying speed regulation technique and a modern detecting technique, realizes stepless control of frequency-varying speed regulation of a circulating fan, an electric air door, a dehumidifying fan, a drive motor of conveying chains according to temperature and humidity signal that are detected on the spot, reasonably adjusts the running speed of a conveying belt inside a parching channel, the working temperature of a desiccator in each segment, and the blast volume of hot air and the discharge of water vapor, etc., and forms a reasonable drying curve, thus reducing product deformation to the utmost degree, saving the loss of electricity energy and heat energy to the utmost extent, accelerating parching speed, increasing the yield of the parching production line, and realizing optimal control.
Owner:GUANGDONG UNIV OF TECH

U+I type ventilating system for top-coal caving face

The invention provides a U+I type ventilation system for a work surface of top coal caving, which is an improvement of the arrangement of the U type, the U+L type and the E type or B type laneways and the ventilation systems in the prior art. An air intake way and an air return way of the work surface of top coal caving are arranged along a bottom board of a coal bed, and a regulation air door is arranged on the part of the air return way close to a big air return lane to control the reasonable ventilating parameter of the U+I type ventilating system. The invention is mainly characterized in that air exhausting lanes of top boards are arranged in parallel along the air return way with the parallel outward-staggered distance of 0 m to 5 m from the air return way to form the U+I type ventilating system of a one-intake and two-return mode. The invention fundamentally solves the problem of the accumulation of gas and coal dust on the upper section, the upper spatial angle and the gob area of the work surface of top coal caving, in particular the problem of the accumulation of the gas and the coal dust of the upper space of the upper gob area, provides a safe and high-effect ventilating system, and creates an excellent mechanical environment for realizing the exploitation of the top coal caving of small coal pillars and increasing the recovery rate of coal.
Owner:TAIYUAN UNIV OF TECH

Air cooled refrigerator

The invention discloses an air cooled refrigerator. The air cooled refrigerator comprises a refrigerator body and an air duct assembly, wherein the refrigerator body is provided with a freezing chamber liner; the air duct assembly is arranged in the refrigerator body. The air duct assembly comprises a front cover, a rear cover, an axial flow fan and an evaporator, wherein the front cover is provided with a top air supply outlet, a middle air supply outlet and a bottom air supply outlet; the rear cover is arranged at the rear side of the front cover so as to form an air supply cavity between the rear cover and the front cover; the rear cover and the rear side wall of the freezing chamber liner are separated so as to define a heat exchange cavity; the rear cover is provided with an air inlet; the air inlet is respectively communicated with the heat exchange cavity and the air supply cavity; the top air supply outlet, the middle air supply outlet and the bottom air supply outlet are respectively communicated with the air supply cavity; the axial flow fan is arranged at the top part of the rear cover; the evaporator is arranged in the heat exchange cavity. According to the air cooled refrigerator disclosed by the invention, the air duct assembly is simple in structure, and moreover, a traditional air deflector and air door structure used for air guiding is canceled, so that the air duct structure of the air cooled refrigerator is simpler, the control is convenient, and the cost is low.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD

Heat exchange structure of power battery box

InactiveCN101789518AMeet the demanding requirements of operating temperatureImprove performanceCell temperature controlAcute angleWorking temperature
The invention relates to a heat exchange structure of a power battery box, wherein a temperature monitoring element is arranged in a battery module of a battery pack; the battery pack is erected in the middle of a battery box; a top space, a bottom space and a side surface space are respectively positioned between the upper surface, the lower surface and the side surface of the battery pack and the top, the bottom and the side surface of the battery box; a heating element is arranged in the battery box; a first air door and a second air door are arranged on the battery box; an air driving element is arranged in the battery box towards the second air door and at an acute angle with the second air door; and a control unit is electrically connected with the first air door, the second air door, the air driving element, the heating element and the temperature monitoring element. The invention has ingenious design, simple structure, low cost, convenient operation and both cooling and heating, thereby solving the problem of heat management of the battery box of an all-electric hybrid power vehicle, meeting the strict requirements of a battery on working temperature, enhancing the property of the battery and being suitable for large-scaled popularization and application.
Owner:SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE

Refrigerator and separation embedded type air channel structure thereof

InactiveCN106091537AAchieve individual controlRealize independent and precise temperature controlLighting and heating apparatusDomestic refrigeratorsCold airTemperature control
The invention discloses a refrigerator and a separation embedded type air channel structure thereof. The separation embedded type air channel structure of the refrigerator comprises a refrigeration air channel and a temperature change air inlet channel communicating with the refrigeration air channel. The separation embedded type air channel structure further comprises a first temperature change air channel, a second temperature change air channel, a cold storage air inlet channel and a cold storage air channel. The first temperature change air channel and the second temperature change air channel are arranged in parallel, and the inlet end of the first temperature change air channel and the inlet end of the second temperature change air channel both communicate with the temperature change air inlet channel. The outlet end of the second temperature change air channel communicates with the cold storage air channel through the cold storage air inlet channel. A varying temperature air door is arranged in the first temperature change air channel. A cold storage air door is arranged in the cold storage air inlet channel. The cold storage air channel and the first temperature change air channel are arranged in a separation mode, and the varying temperature air door and the cold storage air door are arranged in the first temperature change air channel and the cold storage air inlet channel correspondingly, independent cold air control of a cold storage chamber and a temperature change chamber is achieved, and thus independent and precise temperature control over the cold storage chamber and the temperature change chamber is achieved.
Owner:NANJING CHUANGWEI HOUSEHOLD ELECTRONICS APPLIANCES LTD

Freezing and refrigerating device and defrosting control method thereof

The invention relates to a freezing and refrigerating device and a defrosting control method of the freezing and refrigerating device. The freezing and refrigerating device comprises a box body and a door body, wherein at least one storage chamber, a supply air way, a return air way, a cooling chamber and a discharging air way are limited in the box body; the supply air way is used for supplying cooling airflow to the storage chamber; the return air way enables the airflow from the storage chamber to flow through; the cooling chamber is communicated with the supply air way and the return air way and is contained with an evaporator, a draught fan and a defrosting heater; the discharging air way is communicated with the cooling chamber and an environment space; the supply air way and the discharging air way are respectively provided with a supply air door and a discharging air door which are used for selectively switching on and/or blocking the supply air way and the discharging air way. The invention also discloses the defrosting control method of the freezing and refrigerating device. The defrosting control method comprises the steps of receiving a defrosting signal, starting the defrosting heater which is positioned on the evaporator, closing the supply air door, opening the discharging air door, enabling hot air generated by defrosting to be discharged into the environment space, and the like.
Owner:HAIER SMART HOME CO LTD

Method for controlling outlet air temperature of automobile air conditioner

A method for controlling the outlet air temperature of an automobile air conditioner includes the steps of determining a target outlet air temperature at least according to a user setting and temperatures inside and outside an automobile; calculating a first temperature air door position according to the target outlet air temperature, an evaporator temperature and a coolant temperature; calculating a second temperature air door position according to the target outlet air temperature and an actual outlet air temperature; determining a temperature air door position according to the first temperature air door position and the second temperature air door position; and controlling a temperature air door of the automobile air conditioner by using the temperature air door position. According to the method, the first air door position and the second air door position are calculated according to conditions inside and outside the automobile, the user setting, the evaporator temperature and the coolant temperature and integrated as position output of the temperature air door, therefore the outlet air temperature changes along with the target rapidly in a dynamic process, the temperature is accurate and stable in a steady state, the comfortable temperature in the automobile is guaranteed, and user operations are reduced.
Owner:HUIZHOU DESAY SV AUTOMOTIVE

Air duct assembly used for refrigerator and refrigerator provided with same

ActiveCN103344074AEasy to fixSolve the problem of prone to left and right movementLighting and heating apparatusCooling fluid circulationEngineeringAir door
The invention discloses an air duct assembly used for a refrigerator and the refrigerator provided with the same. The air duct assembly used for the refrigerator comprises an air duct, a rotary shaft and an air door, wherein the air duct comprises a left wall and a right wall, an installation hole penetrating through the left wall and the right wall is formed in the air duct, the right end of the rotary shaft penetrates through the installation hole, a first limiting part is arranged on the outer circumferential surface of the rotary shaft, the first limiting part abuts against the left wall of the air duct, the air door is connected with the right end of the rotary shaft, a second limiting part is formed on the air door, and the second limiting part abuts against the right wall of the air duct. According to the air duct assembly used for the refrigerator, due to the fact that the limiting structures are arranged on the rotary shaft and on the air door respectively, the positions of the rotary shaft and the air door on the two sides of the air duct are limited, the air door is fixed firmly, the problem that an existing air door can move left and right easily in the air duct is solved, and user experience is enhanced.
Owner:HEFEI HUALING CO LTD

Vertical air guide type blowing barrel and blowing device composed of vertical air guide type blowing barrel

The invention discloses a vertical air guide type blowing barrel and a blowing device composed of the vertical air guide type blowing barrel. The vertical air guide type blowing barrel comprises a blowing barrel body which comprises an inner barrel and an outer barrel. The upper end between the inner barrel and the outer barrel is provided with a closed upper end edge. The lower end between the inner barrel and the outer barrel is provided with an annular air outlet. The top circle of the outer barrel vertically extends upward to form a connecting barrel part. The connecting barrel part is connected with the air outlet end of a blower. An air inlet cavity is formed inside the connecting barrel body and is connected with an air outlet pipeline of the blower. The vertical air guide type blowing barrel enables air currents from the blower to be in the same direction as a handle of the blower and be capable of being blown downward, so that operation is easy and the fatigue of a user is reduced. The air currents are blown from top to bottom, so that the cuticle of hair can not be damaged, and the hair is protected to be healthy and have luster. Further, through the further arrangement of a movable barrel, an air door structure and a blinker, the directly downward direction, the anticlockwise spirally downward direction and the clockwise spirally downward direction of air currents can be realized, so that different hair styles can be made.
Owner:SUN LUEN ELECTRICAL MFG

Barbecue furnace with cover

The invention relates to an oven with a cover cap, and belongs to the technical field of food processing and domestic instant food processing. The oven is characterized in that an oven hearth consists of a lower semicircular cylinder which is arranged transversely and has an upward opening and two ends connected to a fixed semicircular wall, and an upper semicircular cylinder connected with a cylinder edge by a shaft; two ends of the oven hearth fixed at the edges inside the upper semicircular cylinder on the circumferential wall are provided with calking grooves along a semicircle, the calking grooves are embedded into the edges of an arc moving door at one-quarter opening of an upper semicircular cover, and the middle of the upper semicircular cylinder is provided with a dial thermometer for measuring temperature of the oven hearth; three racks are arranged in the oven hearth, namely, a bottom layer, an upper rack and a middle rack; a cylindrical oven body is arranged on a bracket; and the oven is provided with a chimney, an air door and a shelf. The oven has the advantages as follows: because barbecue is roasted closely, heat is not easy to diffuse, roasting strength can be adjusted, the oven not only improves roasting efficiency and does not pollute environment, but also heat food evenly, shortens roasting time, and can supply enough smudging roasted food.
Owner:SHANGHAI YUQIANG OUTDOOR PROD CO LTD
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