JPS5818601Y2 - ventilation fan - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation fan that includes an intake fan and an exhaust fan and performs an intake and exhaust operation at the same time.

Generally, ventilation fans are installed by forming a rectangular mounting hole on the wall of the room that communicates with the inside and outside, and fitting the fan into the mounting hole. Because the fan is so large, it is impossible to install it using a mounting hole provided in an existing house to install a normal ventilation fan.

Therefore, in the past, the wall around the existing mounting hole was cut out to widen the inner circumference of the mounting hole, which made the installation work extremely troublesome, and in rental housing, etc., it was difficult to remodel the house. There are some cases where this type of ventilation fan cannot be used.

The present invention was developed in view of the above circumstances, and its purpose is to use existing mounting holes as they are for mounting, and also to provide a solution even when the mounting holes are formed near the corners of a wall. To provide a ventilation fan that can be easily installed without requiring modification work such as cutting out a wall surface.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

Reference numeral 1 denotes a rectangular box-shaped case, the inside of which is divided into left and right parts by a partition plate 2, and an opening 4 is formed in the right half of the front plate 3, and an air outlet 5 is formed in the lower part of this opening 4. A decorative board 6 is removably attached.

7 is a suction port formed at the upper left side of the front plate 3.

Reference numeral 8 denotes a partition plate that partitions the inside of the case 1 on the left side of the partition plate 2 into two chambers, front and rear, and a motor 9 with a rotating shaft 9a protruding from the front and rear is attached to this partition plate.

10 is an exhaust sirocco fan provided at the front end of the rotating shaft 9a, 11 is an intake sirocco fan provided at the rear end of the rotating shaft 9a, and the partition plate 8 has the sirocco fan 1.
Fan casings 12 and 13 surrounding fan casings 0 and 11 are provided.

The intake side of the fan casing 12 communicates with the chamber 14 in front of the partition plate 8.
The intake side of No. 3 communicates with the inside of the chamber 15 behind the partition plate 8.

Reference numeral 16 denotes a heat exchanger with a diamond-shaped cross section that is removably disposed approximately at the center of the right side of the partition plate 2 of the case 1. Although not shown in the figure, it is a heat exchanger made of a large number of heat exchangers made of kraft paper, for example. A corrugated partition plate made of kraft paper is placed between them to form a ventilation path, and adjacent partition plates are oriented in different directions to create two ventilation paths whose ventilation directions intersect inside the heat exchanger. It has a formed configuration.

Partition plates 17, 18, 19, 20 are provided on the right side of the case 1 and are in contact with the tops of the heat exchangers 16, dividing the interior into four chambers 21 to 24. The chamber 21 is in communication with the discharge side of the fan casing 12 , the chamber 22 in the rear upper part is in communication with the discharge side of the fan casing 13 , and the lower front chamber 23 is in communication with the air outlet 5 .

Reference numeral 25 denotes a back plate fixed to the back side of the case 1 by screws, for example, and has circular first and second intake ports 26 and 27 formed to communicate with the chamber 15, and a circular first intake port 25 and a second circular intake port 25. and second exhaust ports 28 and 29 are formed to communicate with the chamber 24.

The first intake port 26 and the first exhaust port 28 are provided closer to the partition plate 2, that is, closer to the center of the back plate 25.
The second air intake port 27 is provided at a predetermined distance from the first air intake port 26 to the left when viewed from the front.
The exhaust port 29 is provided at a predetermined distance from the first exhaust port 28 in the right direction when viewed from the front.

That is, the second intake port 27 and the second exhaust port 29 are provided closer to the left and right outer sides of the back plate 25 than the first intake port 26 and the first exhaust port 28 are.

30, 31, and 32 are three slit-shaped engagement holes formed in the upper part of the back plate 25, the engagement hole 31 is provided in the center of the back plate 25, and the engagement holes 30 and 32 are Engagement hole 3
They are provided at a predetermined interval on the left and right sides of 1, respectively.

Now, 33 is a mounting hole formed in the wall surface 34 of the room to be ventilated, which was provided by placing a rectangular wooden frame 35 in advance when forming the wall surface 34. A case where the mounting hole 33 is provided near the right corner of the wall surface 34 will be described with reference to FIGS. 1 and 2.

Reference numeral 36 denotes a rectangular support frame fixed to the indoor side end surface of the wooden frame 35 with screws or the like, and supporting parts 37 and 38 oriented toward the indoor side are integrally extended at the center of the upper and lower parts of the frame, respectively. At the same time, an engaging portion 37a bent upward is formed at the tip of the support portion 37, and an abutment portion 38a bent downward is formed at the tip of the support portion 38.

Reference numeral 39 denotes a communication case in the shape of a rectangular box with an open oblong front, which is screwed to the center of the back plate 25 with a flange 40 formed on the front periphery in contact with the back plate 25. The left end, which is one end in the longitudinal direction, communicates with the first intake port 28.

41 is a communication port formed from the right end, which is the other end in the longitudinal direction, of the back surface 39a of the communication case 39, and 42.4
Reference numeral 3 designates lids that are removably attached to the second intake port 27 and the first exhaust port 28, respectively.

Thus, the case 1 has an engagement hole 32 provided in the back plate 25.
is attached to the wall surface 34 via the support frame 36 and the wooden frame 35 by engaging the rear plate 25 with the engaging portion 37 a and bringing the back plate 25 into contact with the contact portion 38 a, and the central portion of the case 1 is attached. It is mounted offset to the left of the center of the hole 33.

Further, in this state, the communication port 41 and the second exhaust port 29 face the mounting hole 33.

44 and 45 have one end connected to the communication port 41 and the second exhaust port 2.
The intake pipe and exhaust pipe are connected to the mounting hole 3.
3 is penetrated and the other end protrudes to the outside of the room.

A weather cover 46 is located on the outdoor side of the mounting hole 33 and is fixed to the wall surface 34, and a partition plate 47 is provided inside to prevent a short circuit between intake and exhaust.

Note that 48 is a shielding member such as felt disposed between the outer circumference of the back plate 25 and the wall surface 34 to prevent outside air from entering the room through the attachment hole 33.

Next, the operation of this embodiment configured as above will be explained.

When the motor 9 is energized and the rotary shaft 9a is driven to rotate, the sirocco fan 10.11 performs an air blowing operation, but first, the intake air flow from the outdoor side to the indoor side is directed through the intake pipe as shown by arrow A in Fig. 3. 44. The first via the communication port 41 and the communication case 39
The air is sucked into the chamber 15 from the air intake port 26 of
The air is blown from the air outlet 5 to the indoor side.

- The exhaust flow from the front indoor side to the outdoor side -8 is drawn into the sirocco fan 11 from the intake lower through the chamber 14 as shown by arrow B in FIG. 24, and is blown to the outside of the room through the second exhaust port 29 and the exhaust pipe 45.

Then, an intake air flow flows inside the heat exchanger 16 from the chamber 22 to the chamber 23, and an intake air flow flows inside the heat exchanger 16 from the chamber 21 to the chamber 24.
Heat exchange takes place with the exhaust stream flowing towards.

By the way, when the case where the mounting hole 33 is formed at the left corner of the wall surface 34 will be explained with reference to FIG. 4, only the parts that are different from the mounting state shown in FIGS. 1 to 3 will be explained.

That is, the communication case 39 is installed with the left and right sides reversed from those shown in FIGS. 1 and 2, and the lid 42 is connected to the first intake port 26.
and the second exhaust port 29 with the lid 43.

By engaging the engagement hole 30 with the engagement portion 37a and bringing the back plate 25 into contact with the contact portion 38a, the center portion of the case 1 is shifted to the right side of the center of the attachment hole 33. Installed.

In this state, while the communication port 41 and the second intake port 27 face the mounting hole 33, the intake pipe 44 is connected to the second intake port 27.
The exhaust pipe 45 is connected to the communication port 41.

Therefore, the motor 9 is energized and the sirocco fan 10.11
When the is rotated, the intake air flow from the outdoor side to the indoor side is drawn into the chamber 15 through the intake pipe 44 and the second intake port 27 as shown by arrow A' in FIG. The exhaust air is blown out from the air outlet 5 to the indoor side through the same route as shown in the figure, and the exhaust flow from the indoor side to the outdoor side follows the same route as shown in Figure 1 from the suction lower as shown by arrow B' in Figure 4. through the chamber 24 and further through the first exhaust port 28 . Communication case 39, communication port 41
and is discharged to the outside of the room through the exhaust pipe 45 in this order.

Further, a case where the mounting hole 33 is not formed in the wall surface 34 will be explained with reference to FIG. 5.

In this case, the support frame 36 is fixed to a desired position on the wall surface 34 with screws or the like, the engagement hole 31 is engaged with the engagement part 37a, and the back plate 25 is brought into contact with the contact part 38a. The case 1 is attached with its center portion aligned with the center portion of the support frame 36.

Then, the second intake and exhaust ports 27 and 29 are closed with the lids 42 and 43, and the communication case 39 is removed from the back plate 25, and the first intake and exhaust ports 26 and 28 are faced to the wall surface 34. A round hole is drilled and the intake pipe 44 and exhaust pipe 45 are inserted through the round hole.
The intake pipe 44 is connected to the first intake port 26, and the exhaust pipe 4 is connected to the first intake port 26.
5 is connected to the first exhaust port 28.

Therefore, when the motor 9 is energized in this installed state,
The intake air flow is drawn into the chamber 15 through the intake pipe 44 and the first intake port 26 as shown by arrow A'' in FIG. The air is blown, and the exhaust flow is sucked in from the suction lower as shown by arrow B// in FIG. 4, reaches the chamber 24 through the same route as in FIG. and discharged outside.

In addition, if there is a pillar or the like inside the wall surface 34 and it is not possible to form a round hole that faces the first intake port and exhaust ports 26 and 28, insert the hole in the same manner as in the case of FIG. 3 or the case of FIG. Since the case 1 can be mounted on the right or left side with respect to the support frame 36 using the case 39, round holes through which the intake pipe 44 and the exhaust pipe 45 pass can be provided to avoid pillars, etc. can be installed in any position.

In the above embodiment, the communication case 39 is reattached by changing its direction to the back plate 25, but as shown in FIG. 6, the communication case 49 is provided with two communication ports 49a and 49b. , one of these communication ports 49a and 49b is connected to the lid 5.
If the configuration is such that the communication case 49 is selectively closed by 0, it is not necessary to change the orientation of the communication case 49 to the back plate 25 and reattach it.

Further, in the above embodiment, the support frame 36 is shaped like a rectangular frame, but
As shown in FIG. 7, if a rectangular support frame 51 that can close the mounting hole 33 is provided to form round holes 52 and 52 through which the intake pipe 44 and the exhaust pipe 46 pass, the shielding member 48 can be omitted.

As is clear from the above description, the present invention provides a first intake port and a first exhaust port near the center of the back plate of the case,
A second intake port and a second exhaust port are provided on the left and right sides of the back plate, and a second intake port and a second exhaust port are provided on the outside of the back plate so as to communicate with the first intake port or the first exhaust port. This is because a communication case is provided which has a communication port that is close to the second exhaust port when communicating with the first intake port and can be close to the second intake port when communicated with the first exhaust port. ,
Not only can it be installed by using the existing mounting holes formed on the wall for attaching a normal ventilation fan, but also when the mounting hole is formed near the corner of the wall, the case can be attached to the mounting hole. To provide a ventilation fan which can be installed on the left side or right side and can be easily installed without the need for modification work such as cutting out a wall surface.

[Brief explanation of the drawing]

Figures 1 to 5 show one embodiment of the present invention, with Figure 1 being a front view, Figure 2 being a vertical side view taken along line III in Figure 1, and Figure 3 being a left corner of the wall surface. Fig. 4 is an exploded perspective view showing the mounting state when the mounting hole is provided in the corner; Fig. 4 is an exploded perspective view showing the mounting state when the mounting hole is provided in the right corner of the wall; The figure is an exploded perspective view showing the mounting state when no mounting hole is provided on the wall surface, and Figures 6 and 7 are individual perspective views of a communication case and a support frame, respectively, showing other embodiments of the present invention. be. In the drawing, 1 is a case, 5 is an air outlet, 7 is an intake port, 9 is a motor, 10 and 11 are sirocco fans, 16 is a heat exchanger, 25 is a back plate, 26 is a first intake port, and 27 is a first intake port. 2 an intake port, 28 a first exhaust port, 29 a second exhaust port, 33
is a mounting hole, 34 is a wall surface, 36 is a support frame, 39 is a communication case, 41 is a communication port, 42 and 43 are lids, 44 is an intake pipe,
45 is an exhaust pipe, 49 is a communication case, 49a and 49b
50 is a lid, and 51 is a support frame.

Claims (1)

[Scope of utility model registration request] A case equipped with an intake fan and an exhaust fan,
A first intake port and a first exhaust port are provided at a predetermined interval near the center of the back plate of this case, and the first intake port and the first exhaust port are located closer to the left and right outer sides than the first intake port and the first exhaust port. a second intake port and a second exhaust port located on the back plate and adjacent to the first intake port and the first exhaust port with a predetermined interval left and right; and the back plate. attached to the outside so as to communicate with the first intake port or the first exhaust port, and when communicated with the first intake port, be close to the second exhaust port and communicate with the first exhaust port. a communication case having a communication port that can be brought close to the second intake port when the first air intake port is opened;
and a lid that closes each one of the second intake port and the first and second exhaust ports.