JP2003214394A - Blower for ventilating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blower for a ventilating system having high frequency of maintenance in comparison with a heating-cooling combination appliance, and capable of easily checking and replacing a motor, a fan and a fan case. <P>SOLUTION: This air blower is composed of a main body case 1 and an operation unit 2 demountably mounted on the main case 1. The operation unit 2 is composed of a unit base 8 slid and guided by a guide frame 14 of the main body case 1, an air blower 9 assembled in the unit base 8, and a control board 10. The air blower 9 is composed of the fan case 12 fixed to a main wall of the unit base 8, and a fan unit 19 formed by unitizing the fan 22 and the motor 21. The operation unit 2 is moved to a working place different from an installation place of the blower by drawing out and separating the operation unit 2 from the main body case 1, for checking and cleaning instruments, and replacing parts. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention mainly relates to high heat insulation.
The present invention relates to a blower device applied to a ventilation system of a highly airtight house.

[0002]

2. Description of the Related Art Ventilation systems for highly insulated and airtight houses include a first-class ventilation system that uses a ventilation fan for both air supply and exhaust, and a second-class ventilation system that uses only a ventilation fan for air supply. There is a third-class ventilation system in which only the ventilation fan is used. Such a forced ventilation type ventilation system operates the ventilation fan continuously without interruption, so the ventilation fan, fan case, motor, etc. are easily contaminated.For example, compared to cooling and heating equipment whose usage period is limited to summer and winter, Needs to be cleaned. Further, even if the periodical maintenance is performed, the wear and the failure of the devices cannot be avoided, so that the frequency of replacement and repair of the devices and electrical components is higher than that of the cooling and heating devices. In order to simplify this kind of maintenance work, in the ventilation device disclosed in Japanese Patent Laid-Open No. 4-113142, a swingable openable door is provided in a rectangular box-shaped case, and a blower fan is attached to the inner surface of the door. There is. Further, the fan case is composed of a main body for accommodating the fan and a side cover with an intake port opened, and the side cover is swingably supported by the main body. According to such a ventilation device, the ventilation fan can be taken out of the case only by opening the door, and the fan can be exposed only by opening the side cover.

[0003]

According to the above ventilation device, the fan and the inner surface of the fan case can be easily cleaned by opening the door and the side cover.
However, since the motor and the fan are fixed to the swingable door, the door and the case are likely to vibrate in an operating state, which may become a noise source depending on the installation location of the ventilation device. Although the fan can be exposed to the outside of the case by opening the door, the fastening screw and the like cannot be removed unless the door that is swaying is pressed and fixed, which makes it difficult to replace the motor or fan. Especially when the ventilator is installed in a narrow space such as the ceiling, it takes a lot of time and labor to replace the equipment, and the work must be performed in an unstable state using a stepladder as a scaffold. There is also a problem in terms of safety.

The object of the present invention is to easily perform maintenance work for motors, fans, fan cases, etc., to suppress noise generation during use, and to replace equipment such as motors and fans, and electrical components. An object of the present invention is to provide an air blower that can be easily and safely operated. The object of the present invention is that the equipment that requires maintenance and maintenance inspection is made into a cassette as one operating unit. Therefore, by removing the cassetteized operating unit from the case, all the inspection work can be performed collectively. Moreover, it is to provide an air blower that can be operated in an easy place.

[0005]

A blower according to the present invention is a box-shaped main body case 1 in which a ventilation port 3 and an exhaust port 4 are opened.
And an actuation unit 2 which is mounted inside the main body case 1 so that it can be freely taken in and out. The operating unit 2 includes a unit base 8 which is guided and supported by a guide frame 14 provided inside the main body case 1 so as to be freely taken in and out, a blower 9 mounted on the unit base 8 and a control board 10. The blower 9 is composed of a fan case 18 fixed to the main surface wall 12 of the unit base 8 and a fan unit 19 detachably attached to the fan case 18. A side frame 11 of the unit base 8 that opens an intake port 15 of the blower 9 in the main surface wall 12 of the unit base 8 and faces the exhaust port 4
The air supply port 16 is opened.

Specifically, the unit base 8 includes a pair of left and right side frames 11 and a main surface wall 12 connecting the side frames 11 with each other.
It is configured with a door portion 13 that closes the front surfaces of the side frames 11. A frame 26 facing the door portion 13 is erected inside the unit base 8, and the control board 10 is arranged on the front surface thereof. The door portion 13 is configured to include a side frame 11 and a front cover 30 that is detachably fastened and fixed to the main body case 1.

The fan unit 19 can be composed of a motor 21, a fan 22 fixed to its output shaft 21a, and a mounting base 23 fixed to the motor case. The fan base 19 can be integrated with the fan case 18 by fastening the attachment base 23 to the peripheral wall of the opening of the loading port 20 that is opened in the upper wall of the fan case 18.

[0008]

In the present invention, the unit base 8 and
The blower 9 and the control board 10 assembled to the unit base 8 constitute the operating unit 2, and the guide frame 14 provided inside the main body case 1 guides and supports the unit base 8 so that the unit base 8 can be freely taken in and out. The whole body can be pulled out from the body case 1 and separated. Therefore, when inspecting and cleaning the equipment and replacing parts, the operation unit 2 can be taken out of the main body case 1 and moved to a place different from the place where the air blower is installed for work. Therefore, the motor 21 and the fan 2 can be operated under a situation in which it is easy to work on the work table or on the floor.
2. Maintenance, replacement, etc. of the fan case 18 or electrical components can be performed, and a series of operations can be performed easily and reliably. Since it is not necessary to perform a series of work on a scaffold that lacks stability such as a stepladder, work can be performed safely.

The unit base 8 housed in the case is
Since it is supported by the guide frame 14 of the main body case 1 and further fixed to the main body case 1 with the fastener 31, the unit base 8
It is possible to prevent the main body case 1 including the above from vibrating due to the vibration of the fan unit 19 and generating noise, and a quieter air blower can be obtained as compared with a conventional air blower in which a blower is installed inside the door. Devices such as the motor 21, the fan 22, the fan case 18 and the control board 10 that require maintenance and maintenance are made into a cassette as one operating unit 2. Therefore, by removing the operating unit 2 from the main body case 1, All inspection work can be performed in a single operation with less effort.

Ventilation in which the front cover 30 detachably fastened to the side frame 11 and the main body case 1 constitutes the door portion 13, and the control board 10 is arranged in front of the frame 26 facing the door portion 13. According to the device, the front cover 30
Since the control board 10 can be exposed by removing, the basic inspection work such as replacement of the fuse attached to the control board 10 and confirmation of the connector connection state can be easily performed. It is also possible to prevent the control board 10 from interfering with the work when the fan unit 19 is separated from the fan case 18 to clean them or to inspect them.

The fan unit 1 includes a motor 21, a fan 22 and a mounting base 23 fixed to the motor case.
According to the blower device that configures the fan unit 19 and the fan case 18 by fastening the mounting base 23 to the loading port 20 of the fan case 18, after the operation unit 2 is extracted from the main body case 1. The fan case 18, the fan 22 and the motor 2 that are easily soiled by simply disassembling the fan unit 19 from the fan case 18
Since 1 etc. can be put into a cleanable state, these devices can be easily cleaned, and device replacement and inspection can also be easily carried out.

[0012]

1 to 7 show an embodiment of a ventilation system blower according to the present invention. 2 and 3, the blower device is composed of a box-shaped main body case 1 and an operation unit 2 housed in the main body case 1. The body case 1 is made of a thin steel plate and has a flat rectangular box shape that is long in the left and right, and has three ventilation ports 3 fixed to one side and an exhaust port 4 fixed to the other side. Although not shown, each ventilation port 3 is equipped with a duct pipe communicating with the ventilation grill of the room to be ventilated, and the exhaust port 4 is equipped with a duct pipe communicating with the exhaust grill. Inside each ventilation port 3, an automatic ventilation amount control valve is arranged. A loading port 5 for loading and unloading the operating unit 2 is provided on the front surface of the main body case 1.
Are opened (see FIG. 1). Reference numeral 6 is a hanging metal fitting for fixing the main body case 1, which is fixed to the front end of the case near the left end and the rear end of the case near the right end.

In FIG. 1, the operating unit 2 is composed of a unit base 8 and a blower 9 and a control board 10 assembled on the unit base 8. As shown in FIGS. 4 to 6, the unit base 8 includes a pair of left and right side frames 11
And a main frame wall 12 that connects the lower ends of the both side frames 11 and a door portion 13 that closes the front surface of the side frame 11, and a guide frame in which the left and right side frames 11 are provided inside the main body case 1. By sliding guide 14 in the front-back direction, it can be taken in and out of the main body case 1. An intake port 15 for the blower 9 is provided in the main surface wall 12 (see FIG. 5), and an exhaust port 4 is provided.
An air supply port 16 for the blower 9 is opened in the side frame 11 opposed to. The intake port 15 faces the bottom wall of the main body case 1 with a certain distance. On the lower end of the door portion 13, a rod 17 for pulling out and operating the operating unit 2 is integrally provided.

The blower 9 comprises a centrifugal blower, and is shown in FIG.
As shown in FIG. 2, the fan case 18 is detachably fixed to the main surface wall 12, and the fan unit 19 is detachably attached to the fan case 18.
Although the entire lower surface of the fan case 18 is open, by assembling the fan case 18 to the principal surface wall 12, the entire opening surface is covered with the principal surface wall 12. That is, the main surface wall 12 also serves as the lower surface wall of the fan case 18. in this way,
By constructing an air guide path with the fan case 18 and the main surface wall 12, the structure of the fan case 18 can be simplified, and by separating the fan case 18 from the main surface wall 12, the inner surface of the case can be easily cleaned and every corner. It can be carried out. A loading port 20 for assembling the fan unit 19 is opened on the upper wall of the fan case 18.

The fan unit 19 includes a motor 21 and
A multi-blade type fan 22 fixed to the output shaft 21a (see FIG. 1) and a mounting base 23 fixed to the motor case are integrated into a single unit. The mounting base 23 is a rectangular first fixed to the motor 21 side.
It is composed of a base 23a and a circular second base 23b which is integrated with the first base 23a and covers the upper surface of the loading port 20. Screws 24 at three locations around the second base 23b
The fan unit 19 is integrated with the fan case 18 by fixing the fan unit 19 to the fan case 18.

A frame 26 is erected and fixed adjacent to the front side of the fan case 18, and the control board 10 is fixed to the front surface thereof. On the control board 10, the power supply circuit of the motor 21 and the electric components forming the control circuit are mounted in a state of directly facing the door portion 13. A switch frame 27 having an L-shaped cross section is fixed to the front part of the side frame on the left side in FIG. 6, a power switch 28 is arranged on the upper part of the front surface, and a terminal block 29 is arranged on the inner side surface. The power switch 28 is normally on, and is turned off when performing maintenance or the like. The power switch 28, the terminal block 29, and the control board 10 are electrically connected to each other through connectors, and similarly, the motor 21 and the control board 10 are electrically connected to each other through connectors. Therefore, if these connectors are separated, each device can be separated without having to worry about wiring.

The front wall 27a of the switch frame 27, and the front wall 27a and the front cover 30 screwed to the right side frame while avoiding the connector 29 constitute the front door portion 13. Therefore, by removing the screw that fastens the front cover 30, the front surface of the unit base 8 can be opened as shown in FIG. 6, and the mounted components of the control board 10 can be exposed for inspection or repair thereof. . The main body case 1
The operation unit 2 housed in the
The left end of 7a and the right end of the front cover 30 are fastened to the main body case 1 with screws 31 (see FIG. 4) to be fixed so that they cannot be taken in and out.

Besides the above-mentioned embodiment, the ventilation port 3 and the exhaust port 4 can be arranged at arbitrary positions of the main body case 1. The fan of the blower 9 does not have to be a centrifugal type, and other fan structures such as a line flow fan can be adopted. The control board 10 can be arranged along the side frame of the unit base 8. If necessary, divide the inside of the main body case 1 into two chambers, the ventilation port 3 side and the exhaust port 4 side,
A blower 9 can be arranged between both chambers. For example,
A partition wall may be provided along the guide frame 14 on the side facing the exhaust port 4, and an air supply chamber may be provided between the partition wall and the exhaust port 4. The air blower of the present invention is the first for performing forced ventilation.
It can be applied to each of the type 3 to type 3 ventilation systems, and may be installed and used between the ceiling, the back roof room, and the slabs on the upper and lower floors of an apartment house.

[Brief description of drawings]

FIG. 1 is a vertical side view of a blower.

FIG. 2 is a perspective view of a blower device.

FIG. 3 is a plan view of a blower.

FIG. 4 is a perspective view showing a state in which an operation unit is extracted.

FIG. 5 is a vertical sectional front view of the blower.

FIG. 6 is an exploded perspective view of an operating unit.

[Explanation of symbols]

1 body case 2 working units 3 ventilation openings 4 exhaust port 8 unit base 9 blower 10 Control board 11 side frame 12 Main wall 13 Door 14 Guide frame 15 air intake 16 Air outlet 18 fan case 19 fan units 21 motor 22 fans 23 mounting base 26 frames

Claims (3)

[Claims] 1. A box-shaped main body case 1 in which a ventilation port 3 and an exhaust port 4 are opened, and an operating unit 2 which is mounted in and out of the main body case 1 so that the operating unit 2 includes: The main body 1 includes a unit base 8 which is guided and supported by a guide frame 14 provided inside the main body case 1 so as to be freely inserted and removed, and a blower 9 and a control board 10 which are assembled to the unit base 8. The blower 9 is a main surface wall of the unit base 8. The fan case 18 is fixed to the fan case 12, and the fan unit 19 is detachably attached to the fan case 18. The main case wall 12 of the unit base 8 has an intake port 15 of the blower 9.
And a blower for a ventilation system in which an air supply port 16 is opened in a side frame 11 of the unit base 8 facing the exhaust port 4. 2. The unit base 8 comprises a pair of left and right side frames 1.
1, a main surface wall 12 that connects the side frames 11 to each other, and both side frames 11
And a door portion 13 that closes the front surface of the unit base 8. A frame 26 facing the door portion 13 is erected inside the unit base 8, and a control board 10 is arranged on the front surface of the frame 26. The portion 13 includes a side frame 11 and a front cover 30 which is detachably fastened and fixed to the main body case 1.
Blower for the ventilation system described. 3. A fan unit 19 comprises a motor 21, a fan 22 fixed to an output shaft 21a thereof, and a mounting base 23 fixed to a motor case, and a loading port opened on an upper wall of the fan case 18. The mounting base 23 is fastened to the peripheral wall of the opening of the fan 20, and the fan unit 19
3. The fan case 18 is integrated with the fan case 18.
Blower for the ventilation system described.