JPH065542Y2 - Simultaneous supply / discharge type ventilation fan - Google Patents

Description

[Detailed Description of the Invention] Field of Industrial Application [0001] The present invention relates to a simultaneous supply / exhaust type ventilation fan which is mounted on a ceiling surface of a bathroom and is connected to a duct communicating with the outside so that the air in the bathroom can be replaced. It is a thing.

BACKGROUND ART In the ventilation of a bathroom, generally, an exhaust main body that exhausts indoor air and an air supply main body that supplies air to the room are embedded and installed in the ceiling above the ceiling, and a makeup grill that covers each indoor opening is installed. I was going.

Such a conventional simultaneous supply / exhaust type ventilation fan will be described with reference to FIG.

Two openings 101a, 1 formed on the ceiling surface 100 of the bathroom
From 01b to the ceiling above the ceiling, an exhaust main body 103 forcibly exhausting with a blower 102 containing the humid air in the bathroom, and an air supply main body for naturally supplying outdoor air into the bathroom with negative pressure due to this exhaust 104 is embedded and installed, and an exhaust makeup grill 105 and an air supply makeup grill 106 are attached to the lower surface suction port 103a and the lower surface discharge port 104a, respectively.
The exhaust makeup grill 105 and the air supply makeup grill 106 are arranged side by side with one side thereof in contact with each other, and at the time of this side arrangement, the lattices 105b and 106b forming the vent holes 105a and 106a are lowered. It is formed so as to be separated from each other as it goes toward, so that the exhaust gas and the supply air do not mix.

Problems to be Solved by the Invention By the way, the exhaust main body 103 and the air supply main body 104 are often used independently for exclusive use of exhaust air and exclusive supply of air, and in accordance with the design of the ceiling to be installed in this case,
Exhaust makeup grill 105 or air supply makeup grill 106
In many cases, it can be mounted by rotating it by 90 ° or 180 °.

Therefore, even when using the simultaneous supply and discharge type ventilation fan as described above,
Generally, the exhaust makeup grill 105 and the air supply makeup grill 10
6 can be rotated and attached. However, the exhaust and air supply makeup grilles 105 and 106 are the grid 1
Since 05b and 106b are formed to be inclined,
If it is mistakenly installed in a direction different from the normal installation direction shown in the figure, what was originally designed to prevent mixing of exhaust air and air supply would rather act to facilitate mixing.

The present invention solves such a problem, and an object of the present invention is to reliably prevent the exhaust air and the supply air from being mixed by mistakenly mounting the exhaust gas and the supply air makeup grill in the simultaneous supply / exhaust type ventilation fan. It is a thing.

Means for Solving the Problem In order to solve the problem, the present invention is to provide an exhaust makeup grille in a ceiling through two openings formed in a rectangular concave mounting portion provided on a ceiling surface of a bathroom, and an exhaust makeup grill on a lower surface suction port. A box-shaped exhaust body with a built-in blower and a box-shaped air supply body with an air supply makeup grill on the lower surface outlet are made to abut one side of the exhaust makeup grill and the air supply makeup grill. Installed side by side, the exhaust makeup grill and the air supply makeup grill are housed in the mounting portion such that the other side surfaces facing the one side surface and the mounting portion are evenly spaced. Are arranged side by side, and when arranged side by side, the lattices forming the vents are formed so as to incline in a direction away from each other toward the lower side. Along with the notch The present invention constitutes a simultaneous supply / exhaust type ventilation fan in which the protrusions are larger than twice the gap.

Operation With this configuration, the exhaust makeup grill and the air supply makeup grill will not attach to the protrusion if the protrusions and notches provided on the one side do not engage with each other, that is, if they are installed in the wrong mounting direction. The outer peripheral portion of the portion or the side surface of the other decorative grill cannot be placed in the mounting portion and arranged side by side.

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

From the two openings 11 and 12 formed in the rectangular recessed mounting portion 9 provided on the ceiling surface 10 of the bathroom, to the box-shaped exhaust body 1 having the blower 2 with the exhaust makeup grill 4 on the lower surface suction port 1a. The box-shaped air supply main body 3 having the air supply makeup grill 5 in the lower surface outlet 3a is embedded in the ceiling. The exhaust makeup grill 4 and the air supply makeup grill 5 are
The mounting portions 9 are arranged side by side so that their one side faces come into contact with each other.
It is installed inside and installed. When installed side by side, the exhaust and air supply makeup grills 4 and 5 are formed to have a uniform gap over the entire circumference with respect to the mounting portion 9 and have a dimension a, and are engaged with each other on their respective side surfaces that abut. Protrusions 6a, 6b and cutouts 7a, 7b are provided to mate with each other. The protrusions 6a and 6b project outward by a dimension b, and the dimension a
Has a relationship of b> 2a. In addition, the exhaust and air supply makeup grills 4 and 5 are formed such that the grids 4a and 5a forming the vent holes 8a and 8b are inclined in a direction in which the grilles 4a and 5a forming the vent holes 8a and 8b are separated from each other as they go downward.

In the above structure, the exhaust makeup grill 4 and the air supply makeup grill are mounted as follows.

First, the exhaust makeup grill 4 is housed in the mounting portion 9 and attached to the exhaust body 1, and then the air supply makeup grill 5 is inserted into the cutout 7a of the exhaust makeup grill 4 by inserting the protrusion 6b provided on one side thereof. In addition to engaging, the notch 7b is engaged with the protrusion 6a so that the respective one side surfaces are brought into contact with each other, and are fitted and mounted in the mounting portion 9. And the exhaust and air supply makeup grills 4 and 5 can be moved slightly to the left and right and back and forth,
The position is finely adjusted and the clearance with the mounting portion 9 is made uniform over the entire circumference, and the mounting is completed.

In this way, the exhaust makeup grill 4 and the air supply makeup grill 5
Are attached, the protrusions 6a, 6b and the notches 7a, 7
Even if they are mounted in the wrong direction so that they do not engage with each other, the protrusions 6a, 6b will cause the exhaust and air supply makeup grills 4, 5
Alternatively, the outer periphery of the mounting portion 9 does not fit inside the mounting portion. Further, even if the exhaust / air supply makeup grill is moved to the full outer circumference of the mounting portion 9 in this erroneous state, the relation of b> 2a is satisfied, so that the exhaust and air supply makeup grill is never accommodated.

As in the above embodiment, the exhaust makeup grill 4 and the air supply makeup grill 5 are surely prevented from being mounted in the wrong direction, and the respective vent holes 8a and 8b are formed so as to separate from each other. There is no mixing with the air supply.

The exhaust and air supply makeup grills 4 and 5 do not have to be provided in the order of the above embodiment, and the air supply makeup grill 5 may be attached first without any problem.

Further, the clearance between the outer peripheral portions of the exhaust and air supply makeup grills 4 and 5 and the mounting portion 9 is not limited to be uniform over the entire circumference, and the other side surfaces that oppose the one side surface that abuts are mounted. If the clearance with the portion is made uniform and the protrusion is made larger than twice the clearance on one side, even if the other adjacent clearance is made smaller than that, there is no difference in action and effect.

Effects of the Invention As is apparent from the above description of the embodiments, according to the present invention, an exhaust frame and a makeup makeup grill and a makeup makeup mounted on the exhaust frame and the air supply frame, which are arranged in parallel as a simultaneous supply / exhaust ventilation fan for a bathroom. The grill can always be installed in the normal direction where the exhaust air and the air supply do not mix, and moreover, it is housed in the rectangular recessed mounting part, which increases the sense of unity with the ceiling surface of the small bathroom, so it reliably demonstrates its normal function. At the same time, the effect of significantly improving the aesthetics can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing a simultaneous supply / discharge type ventilation fan according to an embodiment of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is an exploded perspective view of the exhaust makeup grill and the supply makeup grill, and FIG. Is a sectional view of a conventional simultaneous supply / discharge type ventilation fan, and FIG. 5 is a sectional view of the same decorative grill. 1 ... Exhaust body, 1a ... Bottom inlet, 2 ... Blower,
3 ... Air supply main body, 3a ... Bottom discharge port, 4 ... Exhaust makeup grille, 5 ... Air supply makeup grill, 4a, 5a ... Lattice,
6a, 6b ... Protrusion, 7a, 7b ... Notch, 8a, 8
b ... Vent, 9 ... Mounting part.

Claims (1)

[Scope of utility model registration request] 1. A box-shaped exhaust body and a lower surface having a blower built-in, which is provided with an exhaust makeup grill at a lower surface suction port in the ceiling from two openings formed in a rectangular concave mounting portion provided on a ceiling surface of a bathroom. A box-shaped air supply main body having an air supply makeup grill at the discharge port is installed side by side so that one side of the exhaust makeup grill and one side of the air supply makeup grill come into contact with each other. The grill and the air supply makeup grill are arranged side by side in the mounting portion such that the clearance between the other side surface facing the one side surface and the mounting portion is uniform, and the ventilation port is provided at the time of the side mounting. The lattice to be formed is formed so as to be inclined in a direction in which the lattices are separated from each other as it goes downward, and when they are arranged in parallel, a protrusion and a notch that engage with each other are provided on the respective one side faces, and the protrusion is doubled in the gap. Larger simultaneous supply and discharge Ventilation fan.