JPH07332506A - Damper device - Google Patents

Abstract

PURPOSE:To provide a damper device built in compactly while avoiding impeding a flow, in the case of providing the damper device in a flow joining spot and a flow branching spot. CONSTITUTION:Vane plates 2a, 2b for opening/closing an in-frame flow path are turnably operably mounted on a frame 1, and ventilating openings Oa, Ob are formed in frame plates 1a, 1b in parts opposed to each other in this frame 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device in which a vane plate for opening and closing a flow path in a frame is rotatably attached to a frame, and particularly, for example, an air flow in a duct system of an air conditioner, The present invention relates to a damper device that is used in a form of being installed in a duct system or attached to an air conditioner unit in order to control the merging / branching of air at a duct connection portion in the air conditioner unit.

[0002]

2. Description of the Related Art In the damper device described above,
The frame body to which the blade plate is attached is generally formed by assembling flat plates into a rectangular shape. When the damper device is attached to an air conditioner unit or the like, the frame body is fixed to the outer wall surface of the device such as the air conditioner unit in an external form.

[0003]

However, the conventional damper device described above has the following problems. That is, when the damper device is interposed in the connecting portion between the duct and the air conditioner unit, etc., the damper device is built in instead of being externally attached to the air conditioner unit, etc. It is considered to reduce the size of the air conditioner unit. However, for example, in the air conditioner unit, when adopting a mode in which the outside air is mixed with the return air from the room, two ducts for introducing the return air and for introducing the outside air are provided at the corners of the unit. It is connected to the unit in an arrangement in which the air flow directions are substantially orthogonal to each other.However, if the conventional damper device is incorporated in the unit as described above in that section, the ducts are placed close to each other. In order to provide the damper device, the flat frame of the damper device blocks the air flow in the other duct. On the other hand, if it is attempted to avoid it, the ducts cannot be brought close to each other and the compactness cannot be achieved.

In view of the above situation, an object of the present invention is to provide a damper device capable of achieving a compact installation portion while avoiding obstruction of the other flow when it is provided at a junction or a branch. Especially.

[0005]

A first characteristic structure of a damper device according to the present invention is a structure in which a blade plate for opening and closing a flow passage in a frame is rotatably attached to the frame body so that the frame bodies face each other. The opening for ventilation is formed in the frame plate of the portion to be opened.

A second characteristic constitution of the damper device according to the present invention specifies a preferable constitution in the implementation of the first characteristic constitution described above, and is a plate-like member for opening and closing the ventilation opening in the frame plate. Is provided so that it can be freely rotated.

A third characteristic constitution of the damper device according to the present invention specifies a preferable constitution for carrying out the above-mentioned second characteristic constitution, and is linked to the rotation of the vane plate, There is provided a connecting means for rotating both together.

A fourth characteristic constitution of the damper device according to the present invention is to specify a preferable constitution in implementing any one of the above-mentioned first characteristic constitution, second characteristic constitution or third characteristic constitution. The ventilation openings are formed in the frame plate that is positioned in parallel or substantially in parallel with the rotation axis of the blade plate.

[0009]

According to the first characteristic construction of the present invention, the direction of flow, which is also called the main direction controlled by the blades, is provided through the ventilation openings formed in the frame plates of the portions of the frame body which face each other. It is possible to allow a flow in the sub-direction that intersects with, so to speak.

According to the second characteristic construction of the present invention, in addition to the control of the flow in the main direction, which is inherently provided in this type of damper device, the ventilation openings of each frame plate are provided in the plate-shaped body. By opening and closing by motion, the flow in the sub-direction achieved by the above-described first characteristic configuration can be controlled to be allowed, restricted, or prohibited.

According to the third characterizing feature of the present invention, the control of the main flow originally provided in the damper device of this kind by the connecting means, and the sub-feature achieved by the above-mentioned second characterizing feature. Two flow controls, directional flow control, can be interlocked.

According to the fourth characteristic construction of the present invention, the above-mentioned ventilation opening for allowing the flow in the sub-direction faces the blade plate for controlling the flow in the main direction, and the blade It is easy to join or split the flow in the sub direction through the ventilation opening with respect to the flow in the main direction flowing along the plate.

[0013]

Therefore, according to the first characteristic configuration of the present invention, since the flow in the sub-direction intersecting with the main direction is allowed, for example, the place where the two ducts are crossed to perform the merging or branching. In the case of interposing a damper device in the above, even if the damper device connected to one of the ducts is installed so as to project into the flow path of the other duct, there is no obstruction of the flow in the other duct, At least a part of the damper device,
We were able to achieve compactification of the surrounding area by inserting it into the connecting part of the duct. As a result, it is possible to provide an excellent damper device that can be installed compactly without obstructing the flow when it is installed at a junction or a branch.

According to the second characteristic configuration of the present invention, in addition to the control of the flow in the main direction, the control of the flow in the sub-direction intersecting with that direction can be performed. It can be a convenient damper device that can control both flows.

According to the third characteristic configuration of the present invention, the control of the flow in the main direction and the control of the flow in the sub direction can be performed in conjunction with each other. The damper device can be easily operated when changing and adjusting the ratio.

According to the fourth characteristic configuration of the present invention,
When it is provided at a branch point, the flow can be smoothly divided or combined, so that it is possible to avoid causing turbulence in the flow of the entire flow path, and it is less likely to impose the damper device itself. The damper device having the action and effect corresponding to each of the characteristic configurations as described above can be made highly durable.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, flat frame plates 1a to 1
In a frame body 1 in which d is assembled in a rectangular shape, two blade plates 2a and 2b for opening and closing a flow path (hereinafter, referred to as a main direction flow path) M surrounded by the frame body 1 are arranged along the longitudinal direction thereof. Another axis P
A damper device is constructed by rotatably mounting the members around a and Pb, and connecting four flanges 4, which are mounting portions for objects such as ducts, to the four circumferences of one edge of the frame body 1.

Of the four frame plates 1a to 1d constituting the frame body 1, the separate axis P of the vane plates 2a and 2b.
Apertures Oa and Ob are formed in each of the frame plates 1a and 1b that are parallel to a and Pb and face each other.
Each of the separate plate-like bodies 3a and 3b for opening and closing a and Ob is rotatable about respective separate axial cores Qa and Qb along the longitudinal direction thereof.
It is attached to both frame plates 1a and 1b.

Although not shown, the pair of blades 2a,
2b is provided with interlocking means composed of a link mechanism for integrally rotating them, and the interlocking means and the pair of plate-shaped bodies 3a, 3b are both plate-shaped. The bodies 3a and 3b are connected to the pair of blades 2a and 2b.
There is provided a linking means including a link mechanism for linking with the integrated rotation of the above and rotating them together. As shown in FIG. 1, the mode of connection by this connecting means is as shown in FIG.
When the a and 2b are in a state of closing the main-direction flow passage M, the openings Oa and Ob corresponding to the pair of plate-shaped bodies 3a and 3b.
2, and when the pair of blades 2a, 2b are in the state of opening the main-direction flow passage M, as shown in FIG. 2, the pair of plate-shaped bodies 3a, 3b Are designed to close the corresponding openings Oa and Ob.

Next, an example in which the damper device X according to the present invention described above is applied to an air conditioner unit will be described.

As shown in FIG. 3, a first heat exchanger 5A for the interior zone and a second heat exchanger 5B for the perimeter zone are provided in a package C constituting the air conditioner unit.
And separate fans 6A and 6B for feeding the temperature-controlled air after passing through both the heat exchangers 5A and 5B, and both the fans 6
Control panel 7 for controlling the operation of A, 6B and damper device X
And the return air RA from the room and the outside air OA are mixed, and then the air is passed through the filter 8 and the heat exchangers 5
It is configured to ventilate A and 5B.

As shown in FIG. 1, at the corner of this package C, a first duct 9A for introducing return air and a second duct 9B for introducing outside air are connected and connected to the second duct 9B. The damper device X according to the present invention is attached to the first duct 9A so that the pair of ventilation openings Oa and Ob face each other in the installed state and in the package C. Then, when the return air RA and the outside air OA are mixed in the package C, the outside air OA serving as the main flow passage M in the damper device X of the present invention.
In the introduction path, the two blades 2a of the damper device X,
The amount of outside air OA introduced is changed and adjusted by opening / closing 2b, while the flow of the return air RA allowed by the pair of openings Oa, Ob of the damper device X facing the first duct 9A is set as the sub-direction flow. The flow rate of the return air RA is changed and adjusted by opening and closing the pair of plate-like bodies 3a and 3b of the damper device X, and thus the mixing ratio of the return air RA and the outside air OA is changed. Further, in the state where the two blades 2a and 2b are fully closed and the outside air OA introduction path is closed by the function of the above-mentioned connecting means, the pair of plate-like bodies 3a and 3b are fully opened and the return air RA is obtained. On the other hand, so as not to block the flow of
In a state where the two vane plates 2a and 2b are fully opened and the outside air OA introduction path is opened, the pair of plate-shaped bodies 3a and 3b are fully closed to block the flow of the return air RA. There is.

Thus, the damper device X according to the present invention
Since it is possible to avoid that the flow in the sub-direction is obstructed by the openings Oa and Ob formed in the facing frame plates 1a and 1b, respectively, when the two air streams are installed at the locations where they merge in a substantially orthogonal state. While the damper device X is housed in the package C, the ducts 9A and 9B can be provided very close to each other at the corner of the package C, and as a result, the package C can be downsized.

Further, since the flow in the sub-direction can be controlled by opening / closing the separate plate-like bodies 3a, 3b provided in the openings Oa, Ob, the return air RA can be provided by installing only one damper device X.
It is possible to efficiently control both air flows at the time of mixing the air with the outside air OA and at low cost because it is not necessary to install two damper devices.

Further, by the connecting means, the main direction flow passage M
Control of the introduction amount of the outside air OA flowing through and the control of the flow rate of the return air RA flowing in the first duct 9A serving as the auxiliary flow passage S,
When the flow rate of one is increased, the flow rate of the other can be decreased so that the flow rate of the other can be reversibly interlocked, so that more efficient mixing ratio adjustment can be performed by a simple operation.

On the other hand, the pair of openings Oa,
Since the Ob is opposed to the first duct 9A and the return air RA and the introduced outside air OA are bent so that the flow directions thereof are substantially the same, and then joined together, a smooth joining is possible.
It is possible to reduce the strain on the damper device X.

Another Embodiment Next, another embodiment of the present invention will be described.

<1> In the above embodiment, a plurality of blades 2
a, 2b and a pair of plate-like bodies 3a provided in the openings Oa, Ob,
Although the description has been given of the one in which the connecting means including the link mechanism for interlocking with the 3b is provided, the connecting means is omitted, and the blade plates 2a and 2b and the plate-like bodies 3a and 3 are omitted.
It may be configured such that b and b are separately rotated. Further, regardless of the case where the connecting means is provided or the case where the connecting means is omitted, those rotating operations may be automatically performed by using the control panel 7 described in the previous embodiment. Alternatively, it may be manually operated. And the control panel 7
When the blade plates 2a, 2b and the plate-shaped bodies 3a, 3b are pivotally operated by using the control panel 7, the control panel 7 may be used as the linking means so as to be linked by software.

<2> The pair of plate-like members 3a and 3b provided in the openings Oa and Ob are omitted, and the frame plates 1a and 1a facing each other are omitted.
The configuration in which the openings Oa and Ob are simply provided in 1b may be a configuration in which the flow in the sub-direction is always allowed.

<3> In the above embodiment, the frame plates 1a and 1b having the openings Oa and Ob are positioned in parallel with or substantially parallel to the pivot axes Pa and Pb of the blade plates 2a and 2b. However, instead of this or in addition thereto, similar openings may be formed in the frame plates 1c and 1d facing each other that are orthogonal or substantially orthogonal to the axis Pa, Pb.

<4> Openings O formed in the frame plates 1a and 1b
The dimensions and shapes of a and Ob can be changed as appropriate, and for example, the openings Oa and Ob can be changed to the frame plate 1.
It may have a size that occupies almost all of a and 1b, or may have a size that occupies a very small part. Also,
A plurality of openings may be formed in one frame plate 1a, 1b.

<5> When the rotary plate-like bodies 3a and 3b for opening and closing the openings Oa and Ob are provided, the specific configurations such as the dimensions, shapes and mounting forms of the plate-like bodies 3a and 3b are appropriately determined. This can be changed, for example, in the previous embodiment, the opening Oa on the side of the first duct 9A and the plate-shaped body 3a are both formed to have substantially the same size as the cross section of the first duct 9A, and the plate-shaped body 3a is formed. It may be configured to switch between a state in which the flow of the recirculation air RA is completely shut off and a state in which the flow of the recirculation air RA is allowed by opening and closing. Moreover, you may provide several plate-shaped object in one opening Oa, Ob.

<6> The shape of the frame 1 is not limited to the rectangular shape,
The duct may be formed into a polygonal shape or a circular shape depending on the cross-sectional shape of the duct to be attached. Further, the blade plate 2 attached to the frame body 1
Each of a and 2b may be one or a plurality of three or more.

<7> The mounting target portion of the damper device according to the present invention is not limited to the connecting portion of the duct to the package as described in the previous embodiment, but may be the connecting portion of the ducts. . Further, the object of flow is not limited to air, but may be various gases or fluids.

<8> In the claims, reference numerals are given for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a mounted state

FIG. 2 is a perspective view

FIG. 3 is a sectional view of an outdoor unit.

[Explanation of symbols]

 1 frame 1a, 1b frame plate 2a, 2b blade plate 3a, 3b plate-like body Oa, Ob opening Pa, Pb axis core

Claims (4)

[Claims] 1. A blade plate (2a) for opening and closing a flow path in a frame,
In a damper device in which (2b) is rotatably attached to a frame body (1), ventilation openings (O) are formed in frame plates (1a) and (1b) of the frame body (1) facing each other.
A damper device in which a) and (Ob) are formed. 2. A plate-like body (3) for opening and closing the ventilation openings (Oa), (Ob) in the frame plates (1a), (1b).
The damper device according to claim 1, wherein a) and (3b) are rotatably provided. 3. The connecting means for connecting the rotation of the blades (2a), (2b) to rotate the plate-like bodies (3a), (3b) together. Damper device. 4. The ventilation openings (Oa), (Ob),
The rotation axis core (Pa) of the vane plates (2a) and (2b),
A frame plate (1 that is parallel or nearly parallel to (Pb)
The damper device according to claim 1, 2 or 3, which is formed in a) or (1b).