JPH04113142A - Ventilator for duct - Google Patents

Abstract

PURPOSE:To simply perform an inspection, a repair, a cleaning, etc., without using tools by providing an air fan in a casing provided on the inner surface of a cover for openably closing a box container opening, and detachably mounting the cover on the box. CONSTITUTION:A cover 10 is openably and detachably supported to a box 1 via bolts 12, and detachably connected to the box 1 by a clamper 13. A ventilator 14 has a casing 15 provided on the inner surface of the cover 10 with a cover plate 17 openably provided, a spindle motor 19 mounted on the cover 10 in the casing 15, and an impeller 22 detachably provided in the motor 19. When the cover 10 is closed, the ventilator 14 is disposed in a box 1 container, and its discharge port 16C communicates with a discharge duct connection port. Thus, works such as maintenance, inspection, cleaning, etc., of a blower can be facilitated.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a duct ventilation system which is connected between an intake duct and an exhaust duct installed in a house to provide ventilation inside the house. Regarding equipment.

(Prior Art) In recent years, houses in particularly cold regions have been improved in insulation performance and airtightness, resulting in higher performance. Along with this, as a ventilation method inside the house, a metered ventilation system, that is, a duct ventilation device that operates continuously 24 hours a day is connected between the intake duct that communicates with each room and the exhaust duct that communicates with the outdoors. A system is used to ventilate the inside of the house.

Conventional duct ventilation devices each have an opening, an intake duct connection port, and an exhaust duct connection port, are formed into a box shape with a housing inside, and are fixed to the wall of a house, etc. a box, a lid provided on the box and capable of opening and closing the opening, and a discharge port of a casing provided in the box sealed by the lid so as to communicate with the exhaust duct connection port. It is generally composed of a ventilator that discharges contaminated air from the intake duct side to the exhaust duct side by rotating a blower fan.

(Problem to be Solved by the Invention) By the way, this type of duct ventilation system operates continuously for 24 hours, and also sucks in the dust inside the house along with the air, so it is difficult to maintain the specified ventilation efficiency for a long time. In order to maintain it for a long time, it is necessary to clean the inside of the box and casing once or twice a year.

However, in the conventional technology, the box is fixed to the wall of the house, and the ventilation device consisting of a casing, an electric motor, and a blower fan is housed inside the box, so there are the following drawbacks. .

First, due to the location of the intake and exhaust ducts, duct ventilation systems are generally installed at high places inside houses, making them difficult to maintain. In this case, the connection with the intake and exhaust ducts must be disconnected, which is extremely troublesome work. Second, boxes with ventilation inside are heavy, so
Removing the box from the wall is not easy, and if you decide to remove the fan in advance, you will need tools.
This will result in an increase in work effort.

Thirdly, the blower fan is particularly easy to get dirty (and is troublesome to clean due to its shape; however, since conventional blower fans cannot be removed from the casing alone, the casing itself must also be removed from the box, making it difficult to clean). Also, tools were required to remove the blower fan.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and provides a duct ventilation system that allows inspection, repair, cleaning, etc. to be easily performed without using any tools. be.

(Means for Solving the Problems) The means of the present invention configured to solve the above-mentioned problems has an accommodating part with an open front, and an intake duct connection port communicating with the accommodating part on the side wall. It consists of a box body provided with an exhaust duct connection port and is fixed to a counterpart member, a lid body attached to the box and capable of opening and closing the liv chamber opening of the box, and a lid body of the lid body. A ventilator is provided on the inner surface, and has a discharge port that communicates with the exhaust duct connection port when the lid is closed, and has a blower fan rotatably driven by a motor inside the casing.

Further, the lid body can be attached to the box not only in a manner that it can be closed, but also in a removable manner.

On the other hand, it is preferable that the casing of the ventilation/machine is composed of a casing body attached to the lid, and a lid plate that opens and closes the opening of the casing body. Furthermore, it may be configured to be removably attached to the rotating part of a motor such as a blower fan of a ventilator.

(Function) With this configuration, the ventilator can be exposed to the outside simply by opening the lid. Furthermore, if the lid can be removed from the box, there is no need to remove the box from the other member.

Furthermore, the interior of the casing can be opened by opening the cover plate of the casing of the ventilator. The blower fan, which is removably attached to the rotating part of the motor, can be removed from the casing.

(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In the figure, l indicates a box constituting the duct ventilation system. The box 1 includes a rectangular fixing back plate 2, and four side plates 3, 4, 5, 6 (top, bottom, left, and right) that protrude forward from the outer edge of the back plate 2 (however, the right side plate The upper plate 3 has a cylindrical intake duct connection port 8 and a cylindrical intake duct connection port 8 communicating with the housing part 7. An exhaust duct connection port 9 is provided in a protruding manner. The box 1 is fixed, for example, to an inner wall A of a house via a fixing means such as a bolt insertion hole.

Reference numeral 10 denotes a lid body that opens and closes the opening of the accommodating portion 7, and the lid body 10 is a rectangular flat plate that can completely cover the opening. A pair of connecting pieces 11.11 are rotatably attached to the longitudinal side ends of the lid body 10 so as to sandwich the upper and lower plates 3.4 of the box l. .11 is the upper and lower plate 3 of box 1.
．． Bolt insertion holes (none of which are shown) are drilled to communicate with the bolt insertion holes drilled in 4.

Reference numeral 12.12 denotes a pair of bolts and nuts that support the lid 10 in a manner that allows it to be opened and closed relative to the box 1 and to be detachable.
It is inserted through the bolt insertion hole of the connecting piece 11 from the bolt insertion hole of the connecting piece 11, and a wing nut 12B is screwed onto the tip side. on the other hand,
Reference numeral 13.13 indicates a stopper for detachably locking the lid 10 to the box 1, and the stopper 13.13 is a locking ring 1 rotatably provided on the top and bottom surfaces of the box l.
3A, 13A, and are fixed to both the upper and lower end sides of the lid body 10,
It is composed of engaging pieces 13B, 13B that can respectively lock the locking rings 13A, 13A.

Next, reference numeral 14 indicates a ventilator for force-feeding contaminated air from the intake duct connection port 8 side to the exhaust duct connection port 9 side. 15
16 is a casing body, which has a punched hole 16B on the other side of the opening 16A in the axial direction, and has a discharge port 16c in the tangential direction. It consists of a spiral cylinder with a rectangular cross section, and is fixed to the inner surface of the lid IO via screws or the like. On the other hand, reference numeral 17 denotes a lid plate made of a spiral plate having a circular suction port 17A in a substantially central shaft.
, c' directions to open and close the opening 16A. A locking piece 8 made of a leaf spring that engages with the casing body 16 is protruded from the outer peripheral edge of the cover plate 17.

Reference numeral 19 denotes an outer rotor type spindle motor for rotationally driving an impeller 22, which will be described later.
Reference numerals 9 denote a shaft support plate 19A fixed to the inner surface of the lid body 10 through a punched hole 16B of the casing body 16, a rotor support shaft 19B erected on the shaft support plate 19A, and a rotor support shaft 19B. It has an outer rotor 19c that is pivotally supported by the outer rotor 19G, and a flange 19D that is fixed to the outer rotor 19G and rotates integrally with the outer rotor 19G.
A plurality of locking claws 20.2 for removably locking the
0, . . . and engagement holes 21, 21, . . . (however, only one of each is shown) are spaced apart in the circumferential direction.

Furthermore, 22 is an impeller called a so-called sirocco fan,
The inner support ring 22A of the impeller 22 has an engaging hole 23 and a locking pawl 24 spaced apart in the circumferential direction to engage with the locking pawl 2° and the engaging hole 21 provided on the spindle motor 19, respectively. Yes, if the outer rotor 19C is fixed and only the impeller 22 is slightly rotated in a predetermined direction, the impeller 22
can be engaged with the flange 19D, and can be detached from the flange 19D by rotating in the opposite direction.

Thus, the ventilator 14 of this embodiment includes a casing 15 provided on the inner surface of the lid 10 and with which the lid plate 17 can be opened and closed, and a spindle motor 19 located inside the casing 15 and attached to the lid IO. and an impeller 22 which is removably attached to the spindle motor 19. When the lid 10 is closed, the ventilation fan 14 is located in the housing part 7 of the box 1 and its discharge port 16C is closed. It communicates with the exhaust duct connection port 9.

The present embodiment is constructed in a diagonal manner, and the box 1 is fixed to the inner wall A of the house via bolts B, B, and an intake duct and an exhaust duct (not shown) are connected to the intake duct connection port 8 and the exhaust duct connection port 9. Connect each. On the other hand, tighten the lid 10 with the ventilator 14 attached to the inner surface of the bolt and nut 12.1.
By attaching it to the box 1 via 2, the duct ventilation device can be assembled. The basic operation of the thus assembled device as a ventilation device that operates continuously for 24 hours to ventilate the inside of a house is not substantially different from that of the prior art.

However, according to this embodiment, the ventilation fan 14 is
Since the lid lO is attached to the side of the box 1 in a removable manner, the box 1 can be removed from the wall A during maintenance, inspection work, or internal cleaning work that is required once or twice a year. This eliminates the need for disconnecting the air intake and exhaust ducts.

In addition, the cover plate 17 of the casing 15 that constitutes the ventilation fan 14
Since it is hinged to the casing body 16 so as to be openable and closable, the inside of the casing 15, where cotton waste and the like tend to accumulate, can be easily and thoroughly cleaned. Furthermore, in this embodiment, as described above, the cover plate 17 is attached so as to be openable and closable, and the impeller 2 is attached so that it can be opened and closed.
2 is configured to be detachable from the spindle motor 19,
The impeller 22, which is extremely troublesome to clean when attached to a motor as in the prior art, and which cannot be cleaned thoroughly, can be washed completely, and damaged impellers 22 can be replaced extremely easily. I can do it.

In this embodiment, a ventilation system in which one intake duct connection port 8 and one exhaust duct connection port 9 are provided in box l is taken as an example, but a ventilation system in which two or more intake duct connection ports 8 are provided is also applicable. The present invention is also applicable. In addition, the ventilation fan 14
Although an impeller (sirocco fan) 22 was used as the blower fan, there is no restriction on the type of the blower fan as long as it can forcefully send air. Furthermore, an inner rotor type motor can also be used in the present invention.

(Effects of the Invention) The present invention is as described in detail above, and since the blower is provided in the lid of the box, maintenance and inspection of the blower,
Work such as cleaning can be easily performed. In addition, by configuring the device to be detachable from the lid of the box, the above-mentioned maintenance and other operations can be performed more easily.

Moreover, by attaching the cover plate of the ventilation fan to the casing body so that it can be opened and closed, and by configuring the ventilation fan to be detachably attached to the rotating part of the motor, inspection and cleaning of the ventilation fan can be done easily using mechanical knowledge. Even general users who are not skilled enough can easily and sufficiently perform the process without using tools, and the initial performance of the device can be maintained and its lifespan can be extended.

[Brief explanation of the drawing]

FIG. 1 is a front view of a duct ventilation device according to an embodiment of the present invention, FIG. 2 is a partial explanatory view of the duct ventilation device with the lid opened to show the internal structure, and FIG. FIG. 4 is an enlarged cross-sectional view in the direction of the arrows 1--2, and a perspective view of the main parts of the embodiment shown with the cover plate of the ventilator opened. l...Box, 7...Accommodation part, 8...Intake duct connection port, 9...Exhaust duct connection port,
lO... Lid body, 14... Ventilator, 15... Casing, 16
...Casing body, 17... Lid 19...
・Motor, 22...Blade

Claims (4)

[Claims] (1) A box that has a housing section with an open front surface and a side wall provided with an intake duct connection port and an exhaust duct connection port that communicate with the housing section, and is fixed to a mating member; A lid body attached to a box and capable of opening and closing the opening of the housing part of the box; and a casing provided on the inner surface of the lid body, the discharge port of which communicates with the exhaust duct connection port when the lid body is closed. 1. A ventilation device for a duct comprising: a ventilator having a casing provided with a blower fan rotatably driven by a motor; (2) The duct ventilation device according to claim 1, wherein the lid body is detachably attached to the box. (3) The ventilation device for a duct according to claim 1, wherein the ventilator includes a casing body that is attached to the lid body, and a lid plate that opens and closes an opening of the casing body. . (4) The ventilation device for a duct according to claim 1, wherein the ventilator has a configuration in which a blower fan is detachably attached to a rotating part of the motor.