JPH0742049Y2 - Drive device of blowout louver in air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a blow-out louver drive device suitable for a ceiling-embedded air conditioner or the like.

(Prior Art) In this type of ceiling-embedded air conditioner, a ceiling exposure panel that covers the lower surface thereof is provided with a suction port and a pair of air outlets.
The blow-out louvers respectively disposed at the pair of blow-out ports are driven by independent drive devices independent of each other, and reciprocally swing about a rotation axis within a predetermined angle range.

(Problems to be Solved by the Invention) In the above-mentioned conventional device, since a separate drive device is provided to drive each blowout louver, the number of parts, the number of assembly steps, the weight increase, and the cost increases. If there is a difference in the manufacturing accuracy of the respective drive devices, there is a problem in that the manufacturing angle of the pair of blowout louvers deviates from each other due to the fluctuation of the manufacturing accuracy becoming apparent when operating for a long time.

(Means for Solving the Problems) The present invention was devised to solve the above problems, and the gist of the present invention is to provide a pair of air outlets arranged at intervals. In the air conditioner having the blowout louvers that rotate about the rotation axes extending in parallel to each other, one end of the rotation axis of each of the blowout louvers is serially connected through one transmission shaft having flexibility to each other. A drive device for the blow-out louver in an air conditioner, characterized in that a drive device for connecting the rotary shaft of the one blow-out louver and reciprocally swinging the rotary shaft of the one blow-out louver is connected within a predetermined angle range. (Operation) Since the present invention has the above-mentioned configuration, when one blowing louver is reciprocally rocked about its rotation axis within a predetermined angle range by the driving device, this rocking is transmitted via the transmission shaft. It is transmitted to the rotating shaft of the other blowing louver, and the other blowing louver also reciprocally swings around the rotating shaft within a predetermined angular range without angular displacement in synchronization with the one blowing louver.

(Embodiment) An embodiment of the present invention will be specifically described with reference to the drawings.

As shown in FIG. 2, a main body 1 of the air conditioner is embedded in a ceiling 2 and suspended from a slab 4 via suspension bolts 3. The lower surface of the main body 1 is covered with a ceiling exposure panel 5 attached so as to contact the lower surface of the ceiling 2. A suction port 6 is provided in the central portion of the ceiling exposed panel 5, and blowout ports 7 and 8 are provided on both sides of the suction port 6. Then, blow-out louvers 9 and 10 are arranged at the blow-out ports 7 and 8, respectively, and the blow-out louvers 9 and 10 are arranged at the first position.
As shown in the figure, they are rotatably supported via rotating shafts 11 and 12, respectively. One end of a rotary shaft 12 of the blow-out louver 10 is interlocked with a drive device 13, and the other end is interlocked with a rotary shaft 11 of the blow-out louver 9 via a transmission shaft 14.

Then, by rotating the fan built in the main body 1, the indoor air is sucked into the main body 1 through the suction port 6 and cooled or heated in the process of passing through the heat exchanger therein, and then the air outlet is discharged. The louvers 9 and 10 are guided from 7 and 8 and blown into the room.

As shown in FIG. 3, the blowout louver 9 comprises an upper blade 9a and a lower blade 9b parallel to the rotation axis 11, and a plurality of vertical blades 9c interconnecting these, and the outermost vertical blade 9c is rotated. The base end of the shaft 11 is fixed. The rotary shaft 11 is supported by a bearing 19 which is passed through a hole 16 formed in a frame 15 that limits the outlet 7 and fastened by a screw 18 to a base 17. The blowing louver 10 is also configured in the same manner as above.

The transmission shaft 14 is made of a flexible plastic tube, one end of which is fitted and fixed to the rotary shaft 11 and the other end of which is a rotary shaft.
It is fitted and fixed to 12. When the distance between the rotary shafts 11 and 12 is large, in order to prevent the response delay of the rotary shaft 11 due to the twist of the transmission shaft 14, as shown in FIG.
It is also possible to interpose a rigid rod 14b in the middle of a.

Details of the drive unit 13 are shown in FIGS.

The motor 20 is fixed to the base 17, and the rotary shaft is attached to the outer peripheral surface of the circular cam 22 eccentrically fixed to the motor shaft 21 of the motor 20.
The side edge of the crank 23 fixed to one end of 12 is brought into contact. 24 and 25 are collars fixed to the rotary shaft 12, 26 is a collar rotatably fitted to the rotary shaft 12, and 27 is a rotary shaft 12.
Is a bearing for axially supporting.

Then, by driving the motor 20, the circular cam 22
When the eccentric rotary motion is performed around the motor shaft 21, the crank 23 abutting on the outer peripheral surface of the circular cam 22 reciprocally swings around the rotary shaft 12 within a predetermined angular range α. Also swings back and forth within a predetermined angle range α. Since the center of gravity G of the blowout louver 10 is located below the rotary shaft 12 in the entire stroke of reciprocating swing within the predetermined angle range α of the blowout louver 10, a counterclockwise rotational moment acts on the rotary shaft 12. Then, due to this rotational moment, the crank 23 is pressed against the outer peripheral surface of the circular cam 22.

(Effects of the Invention) In the present invention, when one blowing louver is reciprocally rocked about its rotation axis within a predetermined angle range by the drive device, this rocking causes one flexible transmission shaft to move. Is transmitted to the rotary shaft of the other blow-out louver, and the other blow-out louver reciprocally swings within a predetermined angle range around the rotary shaft in synchronization with the one blow-out louver without any angular displacement. Have the same rotation angle, and the rotation angle does not deviate even during long-term operation.

Further, since one end of the rotary shaft of each blow-out louver is connected in series via one transmission shaft having flexibility to each other and the drive device is connected to the rotary shaft of one blow-out louver, a pair of blow-out louvers is formed. It can be driven by one driving device, and the number of parts, the number of assembling steps, the weight, the cost and the installation space are reduced, and the reliability is improved.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a bottom view of an air conditioner, Fig. 2 is a side view showing a part of the air conditioner in a cutaway view, and Fig. 3 is a detailed view of an outlet louver. FIG. 4 is a plan view, FIG. 4 is a front view showing a modification of the transmission shaft, FIG. 5 is a top view of the drive device, FIG. 6 is a side view of the drive device, and FIG. 7 is VII of FIG.
-Figure 7 is a view taken along the arrow VII. Blowout port …… 7,8, Blowout louver …… 9,10, Rotating shaft ……
11, 12, transmission shaft …… 14, drive device …… 13

Claims (1)

[Scope of utility model registration request] 1. An air conditioner equipped with a pair of blowout louvers, each of which is disposed at a pair of air outlets spaced apart from each other, and which rotates about rotation axes extending in parallel with each other. One end of the shaft is connected in series via a transmission shaft having flexibility to each other, and a drive device for reciprocally swinging the same is connected to the rotary shaft of the one blowing louver. A drive device for an outlet louver in an air conditioner characterized by the above.