JPH0330747Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an air conditioning blow-off duct device.

(Prior Art) Conventionally, in order to perform air conditioning over a wide area with a single outlet duct, the outlet duct was constructed to be rotatable, and a drive device was provided for this duct to rotate the entire outlet duct. be.

(Problems to be solved by the invention) However, the above-mentioned devices tend to have complicated structures and high costs.

Therefore, the technical problem to be solved in this invention is to have a simple structure and efficiently perform air conditioning over a wide range.

(Means for solving the problem) This invention is based on the idea that the air passage of the blowout duct, which is supplied with air-conditioned air, has a circular cross section, and a plurality of partition walls are installed at equal angular intervals from the center of the passage toward the peripheral wall surface. are arranged radially to form a plurality of compartments each having a fan-shaped cross section, an air outlet for opening each of the compartments individually is formed on the outer peripheral side of the air duct, and above the partition wall is formed a plurality of compartments each having a fan-shaped cross section. , a rotary louver having fan-shaped blades that sequentially opens and closes each of the compartments in a range from a fully open state to a fully closed state is rotatably disposed around an axis coaxial with the center of the air passage; This rotary louver is provided with a motor that continuously rotates the rotary louver in one direction without stopping it during air conditioning.

(Function) Therefore, in this invention, during air conditioning when conditioned air is supplied to the blow-off duct, the rotary louver is continuously rotated in one direction by the motor. Since each compartment is sequentially and intermittently opened and closed in a range from fully open to fully closed by the fan-shaped blades of the rotating louver, the conditioned air flows in a pulsating flow from the outlet of each compartment. It becomes a state and is blown out radially.

(Example) An example of this invention will be described below.

The blow-off duct 1 to which conditioned air is supplied is formed into a cylindrical shape with a bottom. A plurality of partition walls 2 are arranged radially at equal angular intervals in the air passage of the blow-off duct 1, which has a circular cross section, from the center of the passage toward the peripheral wall surface. These partition walls 2 define a plurality of (eight in FIG. 3) compartments 3a to 3h each having a fan-shaped cross section. Further, the partition wall 2 is provided on the outer peripheral surface of the lower part of the blow-off duct 1.
Air outlets 4a to 4h are formed to individually open each of the divided chambers 3a to 3h, which are divided into equal parts.

Above the partition wall 2 in the blow-off duct 1 are fan-shaped blades 5a and 5b that sequentially and intermittently open and close each of the compartments 3a to 3h in a range from a fully open state to a fully closed state. A rotary louver 5 having a rotary louver 5 is rotatably arranged around an axis co-located with the center of the air passage. In this embodiment, the rotary louver 5 has two symmetrical fan-shaped blades 5a and 5b having an angle of approximately 90 degrees, and the center portion thereof is attached to the rotation shaft 6a of the motor 6 so that the rotary louver 5 rotates at a predetermined speed. Continuously rotated in the direction. The motor 6 is attached to a support bar 7 that extends horizontally on the inner circumferential wall surface of the blow-off duct 1 . Further, the rotating louver 5 is rotationally guided by an annular guide ring 8 fixed along the inner circumferential wall surface of the blow-off duct 1.

In the blowout duct device configured as described above, when the motor 6 is operated, the rotating louver 5 continuously rotates in one direction at a predetermined speed.
Each compartment 3a to 3h is separated by fan-shaped blades 5a and 5b.
are sequentially and intermittently opened and closed in a range from fully open to fully closed. Therefore, the conditioned air supplied to the blow-off duct 1 is radially blown out from the blow-off ports 4a to 4h of the respective compartments 3a to 3h in a pulsating flow state (see FIG. 4).

Further, in the above embodiment, the rotating louver 5 is
As shown in FIG. 5, by constructing four fan-shaped blades 5a to 5d having an angle of 45 degrees, a sixth
As shown in the figure, the conditioned air is blown out in a pulsating flow.

The main parts of the blow-off duct device of this invention are as follows:
It can also be employed in the pulsating flow distribution devices shown in FIGS. 7 and 8. That is, the interior space of the distributor 11 to which conditioned air is supplied is divided radially into a plurality of equal parts (four in the figure) by the partition wall 12.
On the outer peripheral surface of the distributor 11, connection ports 14a to 1 for air ducts each communicate individually with each of the compartments 13a to 13d equally divided by the partition wall 12.
4d is arranged. Further, above the partition wall 12, a motor 16 rotates a motor 16 and each branch 1
A fan-shaped blade 15 that intermittently opens and closes 3a to 13d.
A rotary louver 15 having a and 15b is provided.

In the pulsating flow distribution device configured as described above, each of the compartments 13a to 13d of the distributor 11 is sequentially and intermittently opened and closed by the rotation of the rotary louver 15, and the conditioned air supplied to the distributor 11 is , through each branch room 13a to 13d, to the connection port 14a of the branch room.
- Blowout duct connected to 14d (not shown)
It is blown out in a more pulsating state.

(Effects of the invention) As described above, according to this invention, an air-conditioning outlet duct device is configured by an outlet duct, a partition wall, a rotating louver, and a motor, thereby rotating the entire outlet duct than the conventional one. Unlike, the structure can be easily made.

Furthermore, during air conditioning when conditioned air is supplied to the blow-off duct, the rotary louver is continuously rotated in one direction by the motor. Since each compartment is sequentially and intermittently opened and closed in a range from fully open to fully closed by the fan-shaped blades of the rotating louver, the conditioned air flows in a pulsating flow from the outlet of each compartment. It becomes a state and is blown out radially.

Therefore, it is possible to efficiently air-condition a wide area, and the air-conditioned air that is blown out in a pulsating flow from each outlet prevents the user from getting used to the air-conditioning experience, thereby increasing the air-conditioning effect. It has the effect of being able to

Furthermore, according to this invention, the air passage of the blow-off duct, which has a circular cross section, through which conditioned air is supplied, has a plurality of partition walls arranged radially from the center of the passage toward the peripheral wall surface at equal angular intervals. A plurality of fan-shaped compartments are formed, and above the partition wall is a rotary louver having a fan-shaped blade that sequentially opens and closes each compartment from a fully open state to a fully closed state. Because of the structure in which the air passage of the blow-off duct is rotatably arranged around an axis that is the same as the center of the air passage, the air passage of the blow-off duct does not contract or expand as the rotating louver rotates, and the opening degree is always constant. It is maintained. Therefore, the total volume of the conditioned air blown out in a pulsating manner from the outlet of each compartment is always approximately constant, and efficient air conditioning can be performed.
Furthermore, since the opening degree of the blowout duct is always kept constant, the air resistance of the conditioned air in the air passage against the rotating louver is also almost constant, so the increase or decrease in air resistance causes the rotation of the rotating louver. This has the advantage that there is no problem that the air passage is obstructed, and no noise is generated due to the narrowing of the air passage.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a side sectional view showing the blow-off duct device, Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a - line sectional view in Figure 1.
A line sectional view, FIG. 4 is an explanatory diagram showing the opening and closing cycle of each air outlet by the rotating louver, FIG. 5 is a plan view showing another embodiment of the rotating louver, and FIG. FIG. 7 is a side view showing a state in which the main part of the blow-off duct device is adopted as a pulsating flow distribution device, and FIG. 8 is a sectional view taken along the line -- in FIG. 7. 1...Blowout duct, 2...Partition wall, 3a to 3h
... Branch, 4a to 4h... Air outlet, 5... Rotating louver, 5a, 5b... Fan-shaped blade, 6... Motor.

Claims (1)

[Scope of utility model registration request] A plurality of partition walls are arranged radially at equal angular intervals from the center of the passage toward the peripheral wall surface of the air passage of the blow-off duct, which is supplied with air-conditioned air and has a circular cross section, thereby creating a plurality of compartments with a fan-shaped cross section. A vent is formed on the outer circumferential side of the duct to open each of the compartments individually, and an air outlet is provided above the partition wall to open each compartment from a fully open state to a fully closed state. A rotary louver having fan-shaped blades that sequentially opens and closes each of these compartments is arranged rotatably around an axis coaxial with the center of the air passage. An air conditioning blow-off duct device characterized by being equipped with a motor that rotates continuously in one direction without any movement.