摘要:
An outdoor unit 2 of an air conditioner 1 includes: a cabinet 20 in which at least one air inlet and at least one air outlet are formed; a heat exchanger 7 arranged inside the cabinet 20; an air inlet hood 41 that covers the air inlet; and an air outlet hood 42 that covers the air outlet. The air inlet hood 41 includes: a facing panel 51 arranged facing the air inlet; an upper surface panel 53 arranged on an upper surface of a part between the air inlet and the facing panel 51; and two side panels 52 arranged respectively on two side surfaces of the part between the air inlet and the facing panel 51. A lower surface air intake hole 54 is provided to a lower surface of the part between the air inlet and the facing panel 51. A side surface air intake hole 55 is provided to at least one of the two side panels 52.
摘要:
In order to carry out, in a heating operation, an airflow rate adjusting operation in which a reduced amount of conditioned air is blown in one or more of a plurality of blowing directions to increase a blowing speed in the rest of the blowing directions, an operation control section (70) is configured to control the flow of the conditioned air such that the conditioned air is blown out in a horizontal blow mode in the blowing direction in which the blowing speed is increased by the airflow rate adjusting operation, and periodically change the blowing direction in which a reduced amount of the conditioned air is blown. As a result, temperature variations in the air-conditioning target space (R) in the heating operation are reduced.
摘要:
An air-conditioning apparatus provided with a ceiling-mounted indoor unit that uses a refrigerant having a greater specific gravity when gasified than air, wherein the reliability of refrigerant leakage detection is improved. An indoor machine (40A, 40B) is at least one indoor unit in which an intake port and a blow-out port are formed, the indoor unit having an indoor fan (43) for drawing indoor air in from the intake port and blowing conditioned air out from the blow-out port, an intake temperature sensor (46), an indoor-side refrigerant circuit (11 a, 11 b) for circulating a refrigerant having a greater specific gravity when gasified than air and producing conditioned air from the indoor air, and a refrigerant temperature sensor (47a, 47b, 47c) for detecting the temperature of the refrigerant in the indoor-side refrigerant circuit (11 a, 11 b). A control device (30) drives the indoor fan (43) in accordance with an operation mode and/or a detection value of the refrigerant temperature sensor (47a, 47b, 47c), and detects refrigerant leakage through the use of the refrigerant gas sensor (45).
摘要:
The invention relates to a method for climate control in buildings 1, having a ventilation system 2 with at least a control and regulation unit 6 and an air-guide unit, wherein the ventilation system 2 generates, by means of a separate building opening 10, at least one regulated inflow stream 4 which flows into the building 1 and/or at least one regulated outflow stream 5 which flows out of the building. The insulation and structure of the building 1 should be kept free of condensate. To this end, provision is made for at least one current value for a temperature Ti and/or a corresponding absolute internal atmospheric moisture level ʃil and/or a relative atmospheric moisture level φi or a partial steam pressure Wi in the interior of the building 1 and at least one current value for a temperature Ta and/or a corresponding absolute external atmospheric moisture level ʃal and/or a relative atmospheric moisture level φa or a partial steam pressure Wa outside the building 1 to be ascertained. The respectively measured values are supplied to the control and regulation unit 6. An overpressure or an underpressure or no pressure is generated by the air-guide unit in the building 1 as a function of the magnitude of the difference between the values.
摘要:
Distributed nodes, such as intelligent register controllers, of a heating, ventilating and/or air conditioning (HVAC) system wirelessly communicate with each other on a peer-to-peer basis, forming a network, and collectively control the HVAC system, without a central controller. The intelligent register controllers collectively control the amount of conditioned air introduced into each region. Each node may base its operation at least in part on information about one or more (ideally all) of the other nodes. Each intelligent register controller automatically determines how much conditioned air to allow into its region, or how much return air to allow to be withdrawn from its region, based on information collected by the register controller, such as: current temperature of the region; desired temperature of the region; calculated amount of conditioned air required to change the region's temperature to the desired temperature; temperature of conditioned air begin supplied by a duct to the register; current time, day of week, vacation or other schedule data; temperatures of other regions and their respective desired temperatures; calculated amounts of air required to be supplied or withdrawn by the other controlled registers to change their respective regions' temperatures to their desired temperatures; or combinations thereof. Each register controller automatically determines when and to what extent to operate its respective controllable damper.
摘要:
An adaptive control device (77) and method (102-108) for control of the operation of an actuator (72), and particularly thermally-powered actuator (72) of the type used in a variable-air-volume diffuser (71). The preferred adaptive control device is an expert system circuit which controls a heater (74) provided on a thermally-powered actuator (72) to implement an adaptive process (102-108) in which a sensed variable, such as room air temperature, is driven toward a target temperature control range (±0.25° F.). Most preferably, the process steps (106) include driving the room air temperature toward a gross (broader) temperature control range (±1.0° F.) by moving a diffuser damper assembly (80) to a substantially fully open or substantially fully closed position. Thereafter, and while inside the gross temperature control range, the process steps (107, 108) include adjustments to the position of the damper assembly (80) are made only when a sensed parameter, preferably the supply air flow rate, is in a stable condition. Most preferably, the damper (80) is temporarily "kicked" farther open or farther closed than necessary, to minimize hysteresis effects, and then adjusted to a posiiton which tends to drive the room air temperature into the narrower, targeted temperature control range.
摘要:
The invention concerns a shape memory alloy-actuated flow controller (600), comprising: a rotatable flap having a shaft (620) along an axis about which said rotatable flap rotates; and an actuator disposed within said shaft (620) and configured to generate a force causing said rotatable flap to rotate, said actuator comprising a shape memory alloy ("SMA") actuator including a number of SMA elements.
摘要:
A device for temperature control in a space containing technical equipment comprises an air inlet; an air filter arranged to filter air taken in through the air inlet; air outlets discharging in the space containing technical equipment; and fans arranged in a flow path between the air inlet and the air outlets. The air filter, the air outlets, and the fans are arranged in the device together with a controller and a power supply. The controller is arranged to control the fans, and the power supply is arranged to power supply the controller, the fans, and technical equipment contained in the space. Further, a method for temperature control in the space comprises the steps of: taking in air through an air inlet; filtering the air with an air filter; distributing the air in the space through air outlets; controlling fans with a controller; and supplying power to the controller, the fans and technical equipment contained in the space by a power supply. Said steps of taking in, filtering, distributing, controlling, and supplying power are performed by one single device that comprises said air inlet, air filter, air outlets, fans, controller, and power supply.
摘要:
Air diffuser for rooms and similar spaces, the diffuser being intended for mounting at the end of an air duct ending on the surface of a wall, ceiling or similar structure, and the air diffuser being comprised of an arcuate brace (1) or a similar member with a flow control disc (4) and diffuser body (3) mounted thereon, the flow control disc (4) having an actuator connected thereto for moving the flow control disc (4) between two limit positions called the minimum-opening position and the maximum-opening position, the actuator being equipped with spring elements (7, 11) of which at least one first spring is adapted to serve for moving the flow control disc (4) toward the maximum-opening position while at least one second spring serves for moving the flow control disc toward the minimum-opening position. The invention is implemented so that at least one of said spring elements is a thermally actuated memory metal spring (11) whose spring constant is capable of changing with temperature in a preprogrammed manner.
摘要:
Die Erfindung betrifft eine Einrichtung zur Zuluftzuführung mit mindestens zwei verschiedenen Luftauslässen (2, 3) für Luft unterschiedlicher Temperatur und mit einer Einrichtung (5), welche die Luft auf die Luftauslässe (2, 3) verteilt, bei der die Verteilungseinrichtung (5) eine Vorrichtung (7) aufweist, welche die Luftverteilung selbsttätig und direkt in Reaktion auf die Lufttemperatur einstellt.