JPH0236021Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement of an air blowing device for air conditioning, heating, and air conditioning of buildings, etc.

[Conventional technology]

Conventionally, the air outlet of a blower device installed on a ceiling, etc. has multiple nozzle cones of different diameters concentrically stacked, and by moving some of the nozzle cones back and forth, the air flow area between the nozzle cones is reduced. make it variable,
When cooling, the air is blown out in all directions from the air outlet along the ceiling, and when heating, the air velocity is increased and the air is blown directly downwards to maintain a uniform temperature in the room.

[Problem that the invention attempts to solve]

Conventional control by changing the flow path area and blowing direction by moving the nozzle cone back and forth is insufficient to quickly bring the room into a uniform temperature state, and there is a problem in that there are large temperature differences depending on the height and location of the room.

[Means for solving problems]

The present invention aims to provide an air conditioning blow-off device that solves these problems. It is connected to the duct 2 for feeding air, and each chamber of the housing 1 is connected to either the inner pipe 3' or the outer pipe 3'' of the blow-out nozzle pipe 3 having a double pipe structure, and the inside of the housing 1 is connected to the duct 2 for feeding air. A common damper 7 operated by a memory alloy actuator 6 that closes at the temperature of the heating air is provided at the communication port 5 of the partition wall 4 that divides the room into two rooms, and the outlet edge 8 of the outer tube 3'' is expanded in a ripple shape. This is an air conditioning blow-off device.

[Effect]

In this device, during cooling or simply blowing air, the memory alloy actuator 6 is not operated and the damper 7 is open, and the air sent from the duct 2 is introduced into the chamber 1' of the housing 1, and a part of it is transferred to the communication port 5. through the other chambers 1'', and the respective chambers 1', 1''
The air in the outer pipe 3' is blown into the room through the inner pipe 3' and outer pipe 3" connected to The air is blown out along the ceiling and gently spread in all directions. Therefore, the cold air, which tends to sink in specific gravity, spreads across the entire ceiling and descends gently, cooling the room evenly.

Next, in the case of heating, the memory alloy actuator 6 is actuated by the warm air introduced into the chamber 1', the damper 7 is closed, and the warm air is blown out from the chamber 1' through the inner pipe 3'. The flow path is only in the inner pipe 3' and does not flow into the chamber 1'' or the outer tube 3'', so the area of the flow path is reduced to about half, and the flow is blown from the inner tube 3' directly downward from the ceiling of the room at a high velocity, increasing the specific gravity. It reliably sends warm air, which tends to rise slightly, to the floor surface, thereby ensuring that the warm air can be reliably and evenly distributed indoors.

〔Example〕

In the embodiment shown in the drawings, a coil-shaped memory alloy actuator 6 that transforms and operates at warm temperature is attached to one shaft end of the rotating shaft 9 of the damper 7.
A coil spring 10, usually made of metal, is attached to the other end of the rotating shaft 9 to bias it in the opening direction. When the air is cold or at normal temperature, the memory alloy actuator 6 does not operate and the damper 7 is normally opened by a metal spring 10. In the case of heating, the memory alloy actuator 6 operates and the damper 7 is closed, and the warm air flows into the room 1'. Only the inner tube 3' is allowed to pass through.

[Effect of idea]

As described above, according to the present invention, during cooling, the flow rate is low due to the wide flow path area, and moreover, it spreads from the outer tube 3'' along the ceiling surface and gently descends into the room, making uniform cooling possible. In the case of heating, the area of the flow path is reduced by about half, and the flow velocity becomes faster, blowing directly below the outlet and reaching the floor, sending enough warm air to the bottom of the room. can be heated uniformly and quickly.Moreover, its operation uses a memory alloy actuator and has the advantage that it can be performed automatically without a control circuit.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the air conditioning blow-off device of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a front view showing a damper. 1: Housing, 1′, 1″: Chamber, 2: Duct, 3: Blowout nozzle, 3′: Inner pipe, 3″: Outer pipe, 4: Partition wall,
5: Communication port, 6: Memory alloy actuator, 7:
damper.

Claims (1)

[Scope of utility model registration request] A duct 2 that supplies air to one room 1' of a housing 1 whose wall surface is heat-insulated and divided into two rooms 1' and 1''.
A partition that connects each chamber of the housing 1 to either the inner pipe 3' or the outer pipe 3'' of the blow-off nozzle pipe 3 having a double pipe structure, and divides the inside of the housing 1 into two chambers. This blowout device for air conditioning is provided with a common damper 7 operated by a memory alloy actuator 6 that closes at the heating air temperature at a communication port 5 of a wall 4, and further has a blowout edge 8 of an outer tube 3'' widened in a flaring shape.