JPH0674547A - Vav device - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a simple VAV device by simplifying the configuration of the VAV device and reducing the number of assembling steps. [Structure] The heat insulating materials 2 and 3 made of Styrofoam or the like inside the main body 101 are divided into upper and lower halves, and cylindrical openings 102 and 103 for ventilation are provided in a fitting portion of the heat insulating material.
Are provided so as to be positioned in front of and behind the main body, and a ventilation groove portion 1 fitted with a cylindrical groove 4 is provided on the circumferential portion of the cylindrical opening portion 102 along the entire circumference thereof. A bearing 105, which is held so as to be sandwiched by the divided heat insulating materials 2 and 3, and holds a shaft 107 in the ventilation cylinder portion 1,
106 is fitted, and the circular damper 1 is attached to the shaft 107.
By providing 08, the number of steps can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a VAV device mainly used for duct type ventilation and air conditioning units.

[0002]

2. Description of the Related Art In recent years, many ventilation and air conditioning units have been used for ventilation and air conditioning installed on the roof of a building or the like, and many VAV devices which are so-called variable airflow devices have already been used. Suggestions have been made.

Conventionally, this type of ventilation air-conditioning unit has a structure in which conditioned air is sent from each unit body to each room through a duct, and the ventilation control to each room is VAV.
Many things are done by the device.

The structure will be described below with reference to FIG. As shown in FIG. 2, the main body 10 of the VAV device.
1 has a cylindrical opening 10 through which conditioned air passes.
2 and 103 are provided, and the cylindrical opening 102 is provided.
The cylindrical portion 10 is a resin molded product having a cylindrical ventilation portion and a flange portion for fixing to the main body 101.
4, and bearing portions 105 and 106 provided at positions symmetrical to the cylindrical ventilation portion of the cylindrical portion 104, and a shaft 107 inserted into the bearing portions 105 and 106,
A circular damper 108 fixed to the shaft 107 is held. Further, the shaft 107 has a connecting portion 109.
Is connected to the drive motor 110 via. The connection unit 109 and the drive motor 110 are the main body 101.
Located on the side of. Further, the main body 101 is thermally insulated both inside and outside by a heat insulating material 111.

In the above structure, when the conditioned air is passed by the instruction of the control device (not shown) of the VAV device, the drive motor 110 is energized and inserted into the bearing parts 105 and 106 through the connection part 109. Shaft 10
7 rotates, the circular damper 108 fixed to the shaft 107 is opened, and conditioned air is allowed to pass through. On the contrary, when shutting off the conditioned air, the circular damper 108 is closed to shut off the conditioned air by the same function as described above.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the configuration of the V device, as a first problem, the bearing portions 105 and 106 provided at symmetrical positions with respect to the cylindrical ventilation portion.
And a shaft 107 inserted into the bearings 105 and 106, and a circular damper 1 fixed to the shaft 107.
The cylindrical portion 104 holding 08 is screwed to the main body 101.
04a and 104b, it is necessary to fix the heat insulating material 111 inside and outside the main body 101, which complicates the configuration of the VAV device.
There was a problem that it took a lot of assembly time.

A second problem is that the electrical equipment section 112 is
However, since it is located on the side surface of the main body 101, when inspecting from an inspection port (not shown) provided on the ceiling surface, a person to be maintained needs to insert his / her body into the inspection port. There was a problem that it was difficult to do.

The present invention solves the above problems, and a first object thereof is to provide a simple VAV device by simplifying the configuration of the VAV device and reducing the number of assembling steps. .

A second object of the present invention is to provide a VAV device used for a duct type ventilation and air conditioning unit which is easy to maintain.

[0010]

In order to achieve the above-mentioned first object, the first means of the present invention is that a heat insulating material made of expanded polystyrene or the like is provided inside the main body, and the heat insulating material is divided into upper and lower parts. A cylindrical opening for ventilation is provided in the fitting portion of the heat insulating material so as to be positioned in front of and behind the main body, and a groove is provided on the entire circumference of the circumferential portion of the cylindrical opening, and A circular resin molded product that fits in the groove is held by sandwiching it between two upper and lower insulation materials, and a bearing that holds the damper shaft is fitted into the circular resin molded product. It is equipped with a circular damper.

Further, in order to achieve the second object, the second means is a structure of the VAV device in which an electric equipment part such as a motor for driving the shaft is provided in the lower part of the main body.

[0012]

According to the present invention, by the constitution of the above-mentioned first means, the heat insulating material made of styrofoam or the like in the main body is divided into upper and lower halves, and a circular damper is held in the fitting portion of the heat insulating material. Since the parts are sandwiched, it is not necessary to fix the cylindrical part to the main body, and it is not necessary to attach a heat insulating material to the inside and the outside of the main body.
A device can be provided. Moreover, since the electrical component is located on the lower surface of the main body by the configuration of the second means, it is possible to provide a VAV device that can easily perform maintenance.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG. The same reference numerals as those in the conventional example indicate the same items, and the description thereof will be omitted.

As shown in the figure, the main body 101 of the VAV device.
A cylindrical opening 102 through which conditioned air passes,
103 is provided in the cylindrical opening 102, and the ventilation cylinder part 1 and bearing parts 105 and 106 provided at positions symmetrical to the ventilation part of the ventilation cylinder part 1 and the bearing parts 105 and 106. A shaft 107 inserted into the shaft 107 and a circular damper 108 fixed to the shaft 107 are held. The shaft 107 is connected to a drive motor 109 via a connecting portion 109. Further, inside the main body 101, the ventilation cylinder portion 1 is located in the fitting portion of the heat insulating materials 2 and 3 made of styrofoam or the like that is divided into upper and lower parts and in the opening portion 102 for ventilation. In addition, a cylindrical groove 4 is provided in the fitting portion of the heat insulating materials 2 and 3 at a position on the inner circumference of the cylindrical opening portion 102 for ventilation so that the ventilation cylindrical portion 1 fits. The ventilation cylinder part 1 is held and bearing parts 105 and 106 are mounted. The electrical components 5 such as the connection portion 109 and the drive motor 110 are located on the lower surface of the main body 101.

In the above structure, when the conditioned air is passed through the controller (not shown) of the VAV device, the drive motor 110 is energized and inserted into the bearings 105 and 106 through the connection 109. The shaft 107 is rotated, the circular damper 108 fixed to the shaft 107 is opened, and conditioned air is allowed to pass through. On the contrary, when shutting off the conditioned air, the circular damper 108 is closed to shut off the conditioned air by the same function as described above.

Next, a second embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, an electric equipment section 5 is provided on the lower surface of the main body 101, and the electric transmission section 5 is formed on the balance line of the main body 101, and the shaft 107 is formed therein.
The connection portion 109, the motor 110, and other electric components (not shown) are housed in the electric component portion 5.

In the above structure, since the electrical equipment section 5 is provided on the lower surface of the main body 101, when performing maintenance, when performing inspection through the inspection port (not shown) provided on the ceiling surface, the person who is maintaining the inspection unit does not touch the body. Since there is no need to insert it and the inspection port is opened and the electrical component 5 is located at that position, maintenance becomes easier.

[0018]

As is apparent from the above embodiments, according to the present invention, the heat insulating material made of expanded polystyrene or the like in the main body is divided into upper and lower halves, and a circular damper is fitted to the fitting portion of the heat insulating material. Since the ventilation part is held and the ventilation part is sandwiched and the bearing part is provided, there is no need to fix the cylinder part to the main body, and it is not necessary to attach a heat insulating material to the inside and the outside of the main body, which is a simple VAV device. Can be provided.

Further, since the electric component part is located on the lower surface of the main body, it can be inspected from an inspection port (not shown) provided on the ceiling surface, so that a person to be maintained inserts the body into the inspection port. It is possible to provide a VAV device that does not need to be maintained and is easy to maintain.

[Brief description of drawings]

FIG. 1 is a VAV of a first embodiment and a second embodiment of the present invention.
Cross section of the device

FIG. 2 is a sectional view of a conventional VAV device.

[Explanation of symbols]

 1 Ventilation Cylindrical Part 2 Heat Insulation Material 3 Heat Insulation Material 4 Cylindrical Groove 5 Electrical Parts 101 Body 102 Cylindrical Opening 103 Cylindrical Opening 105 Bearing Bearing 106 Bearing Bearing 107 Shaft 108 Circular Damper 109 Connection 110 Motor

Claims (2)

[Claims] 1. A heat insulating material made of Styrofoam or the like is formed inside the main body so as to be divided into upper and lower halves, and a cylindrical opening for ventilation is formed at the front and rear of the main body in a fitting portion of the heat insulating material. In addition, a groove is provided around the entire circumference of the cylindrical opening, and a circular resin molded product that fits into the groove around the circumference is held by a heat insulating material that is divided into upper and lower parts. A VAV device in which a bearing for holding a shaft of a damper is fitted to a circular resin molded product, and the shaft of the damper is provided with the circular damper. 2. A heat insulating material made of Styrofoam or the like is divided into upper and lower parts inside the main body, and a cylindrical opening for ventilation is formed in the fitting part of the heat insulating material in front of and behind the main body. A VAV device in which an electric component such as a motor for driving the shaft is provided in a lower portion of the main body.