JPH0571848B2 - - Google Patents

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 in the shape of a box with a housing inside, and are fixed to the wall of a house. a box; a lid provided on the box for opening and closing the opening; and a state in which the outlet of the casing is communicated with the exhaust duct connection port in the box sealed by the lid. The air blower is provided with a blower fan that is rotated to discharge contaminated air from the intake duct side to the exhaust duct side.

(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 fan consisting of a casing, an electric motor, and a blower fan is housed within the box, which has 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 them are heavy, so it is not easy to remove them from the wall, and if you decide to remove the ventilation in advance, you will need tools and the work will be time-consuming. This will lead to an increase in

Thirdly, the blower fan is particularly easy to get dirty and is troublesome to clean due to its shape. However, since the conventional blower fan cannot be removed from the casing alone, the casing itself must also be removed from the box, making work easier. was extremely bad. Also,
Tools were also 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. .

(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. A box consisting of a box body provided with an exhaust duct connection port and fixed to a mating member, a lid body attached to the box and capable of opening and closing an opening of a housing portion of the box, and an inner surface of the lid body. The ventilator is provided with a casing whose discharge port communicates with the exhaust duct connection port when the lid is closed, and a ventilator equipped with a blower fan rotationally driven by a motor in the casing. .

Furthermore, the lid body can be attached to the box not only in an openable and closable manner but also in a removable manner.

On the other hand, it is preferable that the casing of the ventilation fan includes a casing body attached to the lid, and a lid plate that opens and closes the opening of the casing body. Furthermore, a configuration may be adopted in which the blower fan of the ventilator is detachably attached to the rotating part of the motor.

(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 inside 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, an example of the present invention will be described in detail based on the drawings.

In the figure, 1 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, and 6 on top, bottom, left, and right sides that protrude forward from the outer edge of the back plate 2.
(However, the right side plate 6 is not shown).The upper side plate 3 has a cylindrical shape that communicates with the housing part 7. An intake duct connection port 8 and an exhaust duct connection port 9 are provided in a protruding manner. And the box 1
is fixed, for example, to an inner wall A of a house via fixing means such as bolts B, B, etc.

Reference numeral 10 denotes a lid body that opens and closes the opening of the storage portion 7, and the lid body 10 is a rectangular flat plate that can completely cover the opening. A box 1 is provided at one end of the lid 10 in the longitudinal direction.
A pair of connecting pieces 1 sandwiching the upper and lower plates 3 and 4.
1 and 11 are rotatably mounted, and the connecting pieces 11 and 11 have bolt insertion holes that communicate with bolt insertion holes drilled in the upper and lower side plates 3 and 4 of box 1, respectively (both shown in the figure). (not shown) is drilled.

Reference numerals 12 and 12 denote a pair of bolts and nuts that support the lid 10 in a manner that allows it to be opened and closed with respect to the box 1 and to be detachable.The bolt 12A of each of the bolts and nuts 12 is inserted into the connecting piece from the bolt insertion hole of the box 1. 11, and a wing nut 12B is screwed onto the tip end thereof. On the other hand, reference numerals 13 and 13 indicate fasteners for removably locking the lid 10 to the box 1. It is composed of rings 13A, 13A and engaging pieces 13B, 13B that are fixed to both the upper and lower ends of the lid body 10 and 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 is a casing constituting the ventilator 14; 16 is a casing body; the casing body 16 has an opening 16A on one side in the axial direction; a punched hole 16B on the other side; and a discharge port 16C in the tangential direction. It consists of a spiral cylinder with a rectangular cross section,
It is fixed to the inner surface of the lid body 10 via screws or the like. On the other hand, 17 is a cover plate made of a spiral plate having a circular suction port 17A approximately in the center.
The upper end side is hinged near the discharge port 16C of the casing main body 16 and rotates in the directions of arrows C and C' to open and close the opening 16A. A locking piece 18 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. , a rotor support shaft 19B that is erected on the shaft support plate 19A, an outer rotor 19C that is pivotally supported on the rotor support shaft 19B, and a flange 19D that is fixed to the outer rotor 19C and rotates integrally with the rotor support shaft 19B. The flange 19D has a plurality of locking claws 20, 20, . . . and engagement holes 21, 21, . . . for removably locking the impeller 22.
... (however, only one of each is shown) are spaced apart in the circumferential direction.

Furthermore, 22 is an impeller called a so-called Shirodskov fan, and an inner support ring 22A of the impeller 22 is provided.
is a locking pawl 2 provided on the spindle motor 19.
0 and the engagement hole 23 that engages with the engagement hole 21, respectively.
and locking claws 24 are spaced apart in the circumferential direction, and when the outer rotor 19C is fixed and only the impeller 22 is slightly rotated in a predetermined direction, the impeller 22 can be locked to the flange 19D, and when the outer rotor 19C is fixed, the impeller 22 can be locked to the flange 19D, and when the outer rotor 19C is fixed, the impeller 22 can be locked to the flange 19D. It can be removed from the flange 19D by rotating it.

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

The present embodiment is constructed as described above, and the box 1 is fixed to the inner wall A of the house via bolts B, B, and the intake duct connection port 8 and the exhaust duct connection port 9 are fixed to the inner wall A of the house.
Connect an intake duct and an exhaust duct (not shown) to each. On the other hand, the duct ventilation system can be assembled by attaching the lid 10 with the ventilator 14 attached to the inner surface to the box 1 via bolts and nuts 12, 12. 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 provided on the lid 10 side, and the lid 10 is detachably attached to the box 1, so maintenance and inspection work is required once or twice a year. It is possible to eliminate the need for removing the box 1 from the wall surface A or disconnecting it from the intake/exhaust duct during necessary internal cleaning work.

Further, since the cover plate 17 of the casing 15 constituting the ventilation fan 14 is hinged to the casing body 16 so as to be openable and closable, the inside of the casing 15 where cotton dust and the like tend to accumulate can be easily and sufficiently cleaned. Furthermore, in this embodiment, as described above, the cover plate 17 is attached to be openable and closable, and the impeller 22 is detachably attached to the spindle motor 19, so cleaning it is extremely troublesome when it is attached to the motor as in the prior art. Furthermore, impellers 22 that cannot be cleaned thoroughly can be washed completely, and damaged impellers 22 can be replaced extremely easily.

In this embodiment, a ventilation system in which one intake duct connection port 8 and one exhaust duct connection port 9 are provided in the box 1 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. Further, although the impeller (Shirotskov fan) 22 is used as the blower fan of the ventilation fan 14, 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 has been described in detail above, and since the blower is provided on the lid of the box, maintenance, inspection, cleaning, etc. of the blower can be carried out at capacity. Furthermore, by configuring the lid to be removable from the box, the maintenance and other operations described above 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 detachable from the rotating part of the motor, inspection and cleaning of the inside of the casing and the ventilation fan can be easily performed 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 - arrow in the figure, and FIG. 4 is a perspective view of the main part of the embodiment device shown in a state where the cover plate of the ventilator is opened. 1...Box, 7...Accommodation section, 8...Intake duct connection port, 9...Exhaust duct connection port, 10...
Lid body, 14... Ventilator, 15... Casing, 1
6... Casing body, 17... Lid plate, 19...
Motor, 22...impeller.

Claims (1)

[Claims] 1. Consists of a box body having a housing portion with an open front surface, an intake duct connection port and an exhaust duct connection port communicating with the housing portion on the side wall, and is fixed to a counterpart member. a box, a lid attached to the box and capable of opening and closing the opening of the housing portion of the box; and a lid provided on the inner surface of the lid, and when the lid is closed, a discharge port is connected to the exhaust duct connection port. A duct ventilation device comprising: a casing that communicates with the duct; 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 has a casing comprised of a casing body attached to the lid, and a lid plate that opens and closes an opening of the casing body. 4. The duct ventilation system 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.