JPH0424465A - Air passage changing-over shutter device - Google Patents

Abstract

PURPOSE:To cause an opening opposing to one duct connection port to be closed, an opening opposed to the other duct connection port to be released and enable an air flow passage to be changed over to a plurality of directions with one device by a method wherein a shutter plate is rotated within a shunt box of an arcular sectional shape. CONSTITUTION:A shutter plate 5 is rotated in a shunt box 1 together with a rotating shaft 6. It has such a size as one capable of closing the first opening 39A and the second opening 39B. It is formed into an arcular sectional curved shape which is substantially the same curvature as that of the connection part 42 of the first to third separate plates 4A to 4C. When a power supply is turned OFF, as indicated by a solid line, the shutter plate 5 is disposed at a position opposing to the first duct connection port 2A and the first opening 39A is closed. Under this condition, the room connected to the second duct connection port 2B or the third duct connection port 2C is ventilated through an air passage as indicated by a solid arrow line. When the power supply is turned ON, the shutter plate 5 is held at the position for closing the second opening 39B in opposition to the second duct connection port 2B. Under this condition, the room connected to the first connection port 2A or the third duct connection port 2C is ventilated by the air passage indicated by a dotted arrow line.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a shutter device for switching air paths installed on a ventilation path such as a ventilation duct, and is particularly suitable for comprehensive system ventilation of multiple rooms. The present invention relates to an air path switching shutter device that is suitably used.

[Prior art] As a conventional shutter device of this type,
One example is the technology published in Japanese Patent No. 4944.

FIG. 10 is a partially cutaway front view showing the conventional shutter device disclosed in the above-mentioned publication.

In the figure, (51) is a cylindrical main body installed on the ventilation path, and duct connection ports (51a) are provided at both ends of the main body. (53) is a rotating wheel that is supported through the main body (51) in the diametrical direction, and (54) is a rotary solenoid that drives the rotating shaft (53). (52) is the rotation axis (5
It is a disc-shaped blade fixed to the main body (51) through the rotary wheel (53) by the rotary solenoid (54).
), and is configured to open the air passage in a direction parallel to the air flow and close the air passage in a direction perpendicular to the air flow. Therefore, according to the conventional shutter device, a single air passage can be opened or closed by rotating the blade (52).

[Problems to be Solved by the Invention] However, as described above, conventional shutter devices open and close a single air passage, so when comprehensively ventilating multiple rooms, it is difficult to A shutter device must be installed in the air path, and each air path must be integrated.
A duct is also required, which increases equipment and construction costs.
It was extremely uneconomical.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an air path switching shutter device that can economically ventilate multiple rooms by switching the air paths in a plurality of directions using a plurality of devices.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the air path switching shutter device of the present invention includes a separate plate that partitions adjacent duct connection ports in a shunt box having at least three duct connection ports. A plate, at least two openings formed by the separate plate to face the duct connection port, and a motor installed in the shunt box that rotates within the shunt box to selectively open each opening. It is composed of a closing shutter plate having an arcuate cross section, and a biasing means for rotationally biasing the shutter plate toward a specific duct connection port.

[Function] In the air path switching shutter device of the present invention, when the motor is driven, the shutter plate is rotated within the shunt box, and the opening facing one duct connection port is closed by the shutter plate. At the same time, the opening facing the other duct connection port is opened. Therefore, it is possible to switch the air passages in a plurality of directions using only one device, and it is possible to economically system ventilate multiple rooms with low equipment costs. Further, when the power supply is cut off, the shutter plate is rotated back to the specific duct connection port according to the urging force of the urging means, and closes the opening facing the specific duct connection port. Therefore, the air path connected to this specific duct connection port becomes a normally closed air path, and the normally closed air path can be connected to a room that is ventilated only when necessary. Furthermore, since the shunt box is provided with at least three duct connection ports, the shunt box itself has the ability to integrate a plurality of air paths, thereby reducing construction costs.

[Example] Hereinafter, an example embodying the present invention will be described based on the drawings.

FIG. 1 is a longitudinal cross-sectional view showing an air passage switching shutter device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a cross-sectional view of FIG. 1, and FIG. FIG. 5 is a perspective view of the shutter plate shown in FIG. 1 and FIG. 3, FIG. 5 is a perspective view of the pulley shown in FIG. 1, FIG. 6 is a perspective view of the connecting arm shown in FIG. This figure is a perspective view of the ceiling mount shown in FIGS. 1 and 2, and FIG. 8 is an electric circuit diagram of the gear motor shown in FIG. 1.

In Figures 1 to 3, (1) is a shunt box installed on the ventilation path, (3) is a top cover that covers the upper opening of the shunt box (1), and (17) is a shunt box (1). ) is a pair of L-shaped ceiling mounts that are attached to the ceiling. The three sides of the shunt box (1) have a first duct connection port (2A), a second duct connection port (2B), and a third duct connection port (2C) connected to the ventilation duct (path shown). They each protrude in 90 degrees different directions. In addition, a heat insulating material (19) is placed on the inner surface of the bottom plate of the shunt box (1), and a heat insulating material (40) is placed on the outer surface of the side plate of the shunt box (1).
), but a heat insulating material (18) is applied to the inner surface of the top cover (3).

The ceiling mount (17) has a long hole (1) as shown in Figure 7.
7a), a pothole (17b), and a pair of dowels (17c)
) is provided. Each ceiling hanging bracket (17) is attached to the shunt box (1) by means of a screw (20) inserted into the pothole (17b) with the dowel (17c) positioned on the outer surface of the shunt box (1). It is installed in two diagonal positions. Further, each ceiling hanging fitting (17) is attached to the ceiling so that its position can be adjusted by a hole (43) inserted through the elongated hole (17a).

In FIG. 3, (4A) is a first separate plate with a letter-shaped cross section that partitions the first duct connection port (2A) and the third duct connection port (2C) in the shunt box (1); ) is a second T-shaped cross section that partitions the first duct connection port (2A) and the second duct connection port (2B) in the shunt box (1).
The separate plate (4C) is the second one in the shunt box (1).
This is a third separate plate having a cross-sectional shape that partitions the duct connection port (2B) and the third duct connection port (2C). The first to third separate plates (4A) to (4C) are shunt boxes (1
) is removably assembled to the shunt box (1) with screws (30) so as to project toward the center of the partition (41
) and a joint part (42) bent or fixed to the tip of the partition part (41). Each joint (4
2) is formed to have an arcuate cross section so as to be located within the same cylindrical surface with the center of the shunt box (1) as the axis, and its circumferential end is connected to the outside through an R section (not shown) of minute curvature. It is bent towards the side in an L shape. (22) is a heat insulating material attached to the negative side surfaces of the first to third separate plates (4A) to (4C).

(39A) is a first duct formed so as to face the first duct connection port (2A) from the inside by each joint (42) of the first separate plate (4A) and the second separate plate (4B).
The opening (39B) is an opening formed by each joint (42) of the second separate plate (4B) and the third separate plate (4C) so as to face the second duct connection port (2B) from the inside. 2 openings.

In Figures 1 and 2, (11) is the motor mounting plate fixed to the top cover (3), (10) is the gear motor installed on the motor mounting plate (11), and (15) is the gear motor ( 10) Protective cover (16) is the power cord of the gear motor (10). (12) is a pulley that is rotated by the gear motor (10), and as shown in Figure 5, there is a D-cut connecting hole in the center of the pulley that is inserted and connected to the output shaft (path shown in the figure) of the gear motor (1o). (12
b) is formed, and a protrusion (12a) is formed on the outer periphery.
is protruding downward.

In Fig. 1, (6) is a rotating shaft installed below the pulley (12) in the center of the shunt box (1), and its upper and lower ends are connected to a bearing (7) and an E-ring (8). It is supported by the top cover (3) and the shunt box (1) via. (9
) is a connecting arm that connects the upper end of the rotating wheel (6) to the boolean IJ (12), and as shown in FIG.
An insertion hole (9a) that is inserted into the projection (12a) of 12) and a D-cut connecting hole (9b) that is connected to the rotation shaft (6).
The spring hook includes a cylindrical portion (9c) that is externally fitted onto the upper end of the rotating wheel (6), and a projection (9d). and,
The connecting arm (9) and the pulley (12) are integrally rotatably connected through the engagement between the insertion hole (9a) and the protrusion (12a), so that the rotating wheel (6) is connected to the gear motor (1).
0) is configured to rotate back and forth in accordance with the forward and reverse rotations.

In FIG. 2, (23) is a stopper that determines the rotation limit position in one direction of the connecting arm (9).

In Figures 3 and 4, (5) is the rotation axis (6).
It is a shutter plate that is rotated in the shunt box (1) together with the first opening (39A) and the second opening (39B).
curved in a cross-sectional arc shape with approximately the same curvature as the joint portion (42) of the first to third separate plates (4A) to (4C), and both ends in the circumferential direction thereof. is bent inward into an L-shape through an R portion (not shown) having a minute curvature. The inner surface of the shutter plate (5) has approximately 29
A pair of upper and lower support arms (25) forming a V-shape with a 0 degree angle are fixed. A rotating wheel (6) is provided at the base of the support arm (25).
A grip cylinder portion (25a) is formed to elastically grip the
The shutter plate (5) is rotatably attached to a rotary wheel (6) by a screw (31) at its grip tube m (25a).

The shutter plate (5) is rotated reciprocally within the shunt box (1-) by the gear motor (10) via the rotation shaft (6), and as shown by solid lines and chain lines in FIG. The first opening (39A) or the second opening (39B) can be selectively closed while the end portions are joined to the joints (42) of the first to third separate plates (4A) to (4C). It is configured as follows.

In Figure 3, (21) is a heat insulating material attached to the inner surface of the shutter plate (5) (omitted in Figure 4), and (24) is in contact with the side end surface of the shutter plate (5) to prevent wind leakage. The first separate plate (4A) and the third separate plate (4A) are
This is a packing member made of a flexible material such as rubber that is adhered to the inner surface of the joint part (42) of C).

In FIG. 1, (13) is a coiled spring fitted onto the cylindrical portion (9c) of the connecting arm (9), and one end of which is attached to a stepped screw (14) screwed into the top cover (3). , and the other end of the spring hook of the connecting arm (9) is hooked to the protrusion (9d), respectively. Then, the coil spring (13) uses its spring force to direct the shutter plate (5) toward the first duct connection port (2A) via the connecting arm (9) and the rotation shaft (6) (see the clock in Figure 3). direction) constitutes an energizing means that rotationally energizes, so that when the power is turned off, the shutter plate (5) closes the first opening (39A) facing the first duct connection port (2A). It is rotated back to the desired position.

In the electric circuit shown in Fig. 8, (26) is a rectifying element, (2
7) is a DC coil, and (28) is an internal switch of the gear motor (10), which is configured to stop the gear motor (10) when the gear motor (10) rotates by a predetermined angle.

Next, the operation of the air path switching shutter device of this embodiment configured as described above will be explained.

When the power of the air passage switching shutter device is OFF, the shutter plate (5) moves toward the first position as shown by the solid line in FIG. 3 with the connecting arm (9) engaged with the stopper (23). 1 duct connection port (2 people), and its shutter plate (5) closes the first opening (39A).
will be closed.

In this state, the air passage connecting the second duct connection port (2B) and the third duct connection port (2C) (solid line arrow in Figure 3)
is formed, and the second duct connection port (2B) is formed by the air path.
Alternatively, the room connected to the third duct connection port (2C) is ventilated.

When the power of the shutter device for switching the air path is turned on to switch the air path, the gear motor (10) is started and the shutter is closed via the pulley (12), the connecting arm (9), and the rotating wheel (6). The plate (5) is rotated toward the second duct connection port (2B) against the urging force of the winding spring (13). When the gear motor (1o) rotates by a predetermined angle, its internal switch (28) operates to stop the gear motor (10) and move the shutter plate (5) to the second position as shown by the chain line in FIG.
Second opening (39B) facing the duct connection port (2B)
is held in the closed position. In this state, an air path (dashed line arrow in Figure 3) is formed that communicates the first duct connection port (2A) and the third duct connection port (2C), and this air path allows the first duct connection port (2A) to communicate with the third duct connection port (2C). ) or the room connected to the third duct connection port (2C) is ventilated.

When the power is turned off to restore the air path, the gear motor (10) is in a state where it can freely rotate, and the shutter plate (5) is moved to the first duct connection port (2A) according to the biasing force of the coil spring (13). The first opening (39A) is closed again by the shutter plate (5), and the air path is switched from the chain arrow to the solid arrow.

As described above, the air path switching shutter device of this embodiment includes a shunt box (1) having the first to third duct connection ports (2A) to (2C), and a First to third partitions that partition adjacent duct connection ports (2A) to (2C)
Separate plates (4A) to (4C) and each separate plate (
4A) to (4C), a first opening (39A) and a second opening (39B) formed to face the first duct connection port (2A) and the second duct connection port (2B), A gear motor (10) installed on the top cover (3) of the shunt box (1) and the gear motor (10) operate the shunt box (1).
) that selectively closes the first opening (39A) and the second opening (39B); It is composed of a coiled spring (13) as a biasing means that rotates and biases toward the duct connection port (2A).

Therefore, according to the air path switching shutter device of the above embodiment, the shutter plate (
5) can be rotated within the shunt box (1) to switch the air path into two. Therefore, multiple rooms can be ventilated economically using the shutter device for switching air paths. Moreover, when the power is cut off, the shutter plate (5) is connected to the coiled spring (13).
The air path connected to the first duct connection port (2A) becomes a normally closed air path because it is rotated back to the first duct connection port (2A) according to the biasing force of The normally closed air path can be connected to a room that is ventilated only when necessary.

Moreover, there are three duct connections (2A) in the shunt box (1).
~ (2C) is provided, so the shunt box (1) itself can be given the function of integrating multiple air channels, and the conventional single-character duct can be omitted, significantly reducing construction costs. can be reduced.

In addition, in the air path switching shutter device of this embodiment, each joint (42) of the first to third separate plates (4A) to (4C) has a cross-sectional circle with the same curvature as the shutter plate (5). Since it is formed in an arc shape, the amount of air leaking from the gap between the joint (42) and the shutter plate (5) is reduced. Joint (4
2) and the circumferential end of the shutter plate (5) has a slight radius of curvature.
The shutter plate (
5) can be rotated smoothly. Since the shutter plate (5) is attached to the rotating shaft (6) via the pair of upper and lower support arms (25), the weight of the rotating portion can be reduced. The grip cylinder portion (25a) of each support arm (25) tightly elastically grips the rotating wheel (6) to prevent rattling of the shutter plate (5). The coil spring (13) is attached to the cylindrical portion (9C) of the connecting arm (9).
), it is possible to reliably prevent contact between the coil spring (13) and the rotating wheel (6) when the coil spring (13) is reduced in diameter.

In the air path switching shutter device of this embodiment, the shunt box (1) is provided with heat insulating materials (19) and (40), and the top cover is
The heat insulating material (18) is attached to (3), and the separate plates (4A) to (
4C) and a heat insulating material (21) are respectively attached to the shutter plate (5). Therefore, in addition to the insulation effect of each part, it is possible to prevent dew condensation in cold regions, etc., and especially around the bottom of the shunt box (1) and the top cover (3).
) can also reduce the amount of air leaking from the air. First separate plate (
4A) and the third separate plate (4C) is provided with a packing member (24) that comes into contact with the side end surface of the shutter plate (5). Therefore, the shutter plate (
It is possible to reliably prevent wind leakage at each closed position of 5), and it is also possible to provide each gasket member (24) with a stopper function for stopping the shutter plate (5).

In the air path switching shutter device of this embodiment, each of the separate plates (4A) to (4C) is removably assembled to the shunt box (1) with screws (30), and the shutter plate (5) is also removably assembled to the shunt box (1). It is attached to the rotation shaft (6) with screws (31) so that the rotation can be adjusted. For this reason, separate plates (
By changing the mounting position of 4A) to (4C) and the orientation of the shutter plate (5), the air path can be easily changed according to the layout of the room.

In the air path switching shutter device of this embodiment, the ceiling mount (17) is provided with a pothole (17b) and a dowel (17c). Therefore, you can easily and reliably assemble the shunt box (1) to the ceiling mount bracket (17) attached to the ceiling in the correct position, and you can also install the shunt box (1) without removing the screws (30). Can be easily installed or removed.

By the way, in the above embodiment, the shunt box (1) is provided with three duct connection ports (2A) to (2C), but the present invention is not limited to this, and as shown in FIG. As shown, the shunt box (1) has four duct connection ports (2A) to (
2D) can also be provided and implemented.

FIG. 9 is a cross-sectional view of an air path switching shutter device showing another embodiment of the present invention. In the drawings, the same reference numerals as in the above embodiment indicate the same or corresponding components as in the above embodiment.

In this other embodiment, a fourth duct connection port (2D) is provided protruding from the remaining side surface of the shunt box (1) of the previous embodiment, and the first to fourth duct connection ports (2A) to (2D) are arranged in a cross shape. According to this configuration, the fourth duct connection port (the second
Since the air path connected to D) is a normally open air path, various ventilation systems can be realized, such as connecting this normally open air path to a room that requires constant ventilation. In addition, in the figure, (2
9] is an attached closing plate that closes the side plate of the shunt box (1) in that part when the normally open air path is not required.

Further, in each of the above embodiments, three separate plates (4A) to (4C) are provided in the shunt box (1), but the present invention is not limited to this. 1) By providing four separate plates in the shunt box, it is also possible to form three openings in the shunt box and configure each opening to be selectively closed by a shutter plate.

Furthermore, in each of the above embodiments, a plurality of separate plates (4A)
- (4D) are constructed by dividing each of them, but the present invention is not limited to this, but a plurality of separate plates are provided in a common cylindrical member, and an opening is formed between each separate plate. Good too. And each separate plate (4A) ~
The shape of the joint part (42) of (4D) is not limited to the arcuate cross section as in the above embodiment, but may also be a protrusion shape that can slide into contact with the shutter plate.

In addition, the structure and shape of each part may be arbitrarily changed without departing from the spirit of the present invention, such as using a pulse motor as the motor or providing a tension spring as an energizing means in association with the shutter plate. It is also possible.

[Effects of the Invention] As detailed above, the air path switching shutter device of the present invention includes a shunt box having at least three duct connection ports, and a shunt box that partitions adjacent duct connection ports within this shunt box. a separate plate, at least two openings formed by the separate plate to face the duct connection port, a motor installed in the shunt box, and each opening rotated within the shunt box by the motor. The shutter plate is composed of a shutter plate with an arcuate cross section that selectively closes the section, and biasing means that rotates and biases the shutter plate toward a specific duct connection port. The airflow path can be switched in multiple directions by rotating within the air to selectively close at least two openings, which has the effect of making it possible to economically ventilate multiple rooms with a stand-alone device.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an air passage switching shutter device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a cross-sectional view of FIG. 1, and FIG. A perspective view of the shutter plate shown in FIGS. 1 and 3, FIG. 5 a perspective view of the pulley shown in FIG. 1, and FIG. 6 a perspective view of the connecting arm shown in FIG. 1.
Figure 7 is a perspective view of the ceiling mount shown in Figures 1 and 2;
Figure 8 is an electric circuit diagram of the gear motor shown in Figure 1,
This figure is a cross-sectional view showing another embodiment of the air passage switching shutter device according to the present invention, and FIG. 10 is a partially cutaway front view showing a conventional shutter device. In the figure, 1: Shunt boxes 2A to 2D: Duct connection ports 4A to 4C: Separate plate 5: Shutter plate 10: Gear motor 13 Two-turn springs 39A and 39B: Openings. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts. Agent Patent attorney Masuo Oono and 2 others Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 10 Fig. 1a 1a Procedural amendment (voluntary) Japanese E3 engineering 1!4s 2. Name of the invention Shutter device for air path switching 3. Relationship with the case of the person making the amendment Patent Applicant Address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Corporation Representative Moriya Shiki 4, Substitute (Contact information 03 ( 3213) 3421 Patent Department) 5, Subject of amendment (1) Detailed description of the invention column 6 of the specification, Contents of amendment (1) "It weighed about 290 degrees" on page 10, line 13 of the specification "It weighed about 90 degrees," he corrected.

Claims (1)

[Scope of Claims] A shunt box having three or more duct connection ports, a separate plate that partitions adjacent duct connection ports in the shunt box, and formed to face the duct connection ports by the separate plate. a motor installed in the shunt box; a shutter plate having an arcuate cross section that is rotated within the shunt box by the motor to selectively close each opening; A shutter device for switching an air path, comprising: urging means for rotationally urging the shutter plate toward a specific duct connection port.