JPH0447535Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a bathroom ventilation fan that discharges water droplets to the outside.

(Prior Art) Conventionally, in this type of bathroom ventilation fan, there has been a problem of internal condensation due to the humid atmosphere unique to bathrooms, and conventionally, water droplets generated due to this condensation were dropped into the bathroom.

(Problems that the invention aims to solve) However, with the above-mentioned device that drops water droplets into the bathroom, there is a problem that the wall surface in the bathroom gets dirty and becomes noticeable, and the falling water droplets also come into contact with bathers. There were also problems such as making people feel uncomfortable.

Therefore, one possibility is to discharge the water droplets outside the room. However, even in the case of this, consideration must be given to avoid staining the outdoor wall surface, and it is desirable that the structure be as simple and inexpensive as possible, and the strength of the internal structure will also be reduced. It is desirable to have something that does not.

The present invention has been developed to meet the above-mentioned needs, and its purpose is to discharge water droplets generated inside the room to the outside, without staining the outdoor wall surface, and with a simple structure. To provide a ventilation fan for a bathroom which can be manufactured at low cost and can also be obtained with a structure capable of sufficiently maintaining the strength of the internal structure.

[Structure of the invention] (Means for solving the problems) The bathroom ventilation fan of the invention includes an outer frame whose front and rear parts are open and whose bottom part slopes downwardly downward. a motor support located inside the motor support whose legs extend vertically downward and are connected to the bottom surface of the outer frame; and a water-shielding rib located rearward from the motor support and rising from the bottom surface of the outer frame; A drain that extends from the leg portion of the motor support to a portion rearward of the water-shielding rib, has a water inlet on the side surface of the leg side portion, and has a hollow interior with a diameter larger than the width of the leg portion. The device is characterized in that it includes a cylindrical portion and is integrally molded from synthetic resin.

(Function) According to the above means, water droplets generated inside the outer frame are
The water reaches the bottom of the outer frame and flows backward there, is blocked by the water-blocking ribs, enters the drain cylinder through the water inlet of the drain cylinder, and flows there. An appropriate tube or the like can be connected to the drain cylinder, so that the water discharged from the drain cylinder can be discharged without staining the outdoor wall surface. Structurally, only one drain cylinder is required, the whole can be integrally molded with a simple split mold, and sufficient strength for supporting the motor can be ensured.

(Example) An example of the present invention will be described below with reference to the drawings.

First, in Fig. 2, 1 is a bathroom wall, 2 is a ventilation fan mounting hole formed in the wall 1 with a wooden frame 3, and 4 is a hole for installing a ventilation fan.
is an outer frame inserted into the mounting hole 2.

Specifically, the outer frame 4 has an opening at both the front part on the indoor A side and the rear part on the outdoor B side, and from the periphery of the opening in the front part, a bell mouth 5 is opened rearward.
is formed. The bottom surface of the outer frame 4 is inclined downwardly at an angle .theta., and a leg section 6a extending vertically below the motor support 6 is connected to the intermediate section near the rear end. Incidentally, the upper part of the motor support 6 is connected to the inner upper surface part which is inclined downwardly to the rear, similar to the bottom part of the outer frame 4 described above. As shown in FIG. 1, reference numeral 7 denotes a water-shielding rib formed so as to rise upward from the rear end of the bottom surface of the outer frame 4 located behind the motor support 6, and extends over the entire width of the outer frame 4. It exists in Reference numeral 8 denotes a line extending from the water-shielding rib 7 before and after the water-shielding rib 7, that is, from the leg portion 6a of the motor support 6 to the water-shielding rib 7.
It is a drain cylinder part that extends to the rear part, and water inlets 9 are formed on both sides of the part on the side of the leg part 6a, and the inside is as shown in FIGS. 3 and 4. It is formed into a hollow shape with a diameter larger than the width of the leg portion 6a of the motor support 6. In addition, 10 is a notch formed in the rear end of the bottom surface of the outer frame 4 around the drain cylinder part 8, and 11 is a notch formed in the peripheral part of the drain cylinder part 8.
This is a drench tube connected to. In the above configuration, the drench tube 11 with outer frame 4 or less
All parts except for are integrally molded from synthetic resin using front and rear split molds (not shown).

In addition, in FIG. 1, 12 is a decorative grill attached to the front surface of the outer frame 4, 13 is a blower blade located inside the bell mouth 5, and 14 is a motor attached to a motor support 6 for rotationally driving the blower blade 13. , 15 is a shutter pivotally installed in the opening of the rear surface of the outer frame 4.

Now, in the case of the structure as described above, water droplets generated in the outer frame 4 due to the humidity in the bathroom are as shown in FIG. Then, the water flows backward on the bottom surface of the water at the same slope, and is stopped by the water-shielding rib 7. Then, it enters the drain cylinder part 8 from the water inlet 9 of the drain cylinder part 8, flows inside this drain cylinder part 8, further passes through the drench tube 11, and the tip of this drench tube 11, in other words, the outdoor B side of the wall 1. It is discharged to the outside B from a place away from the surface.

In this way, the water droplets can be drained without staining the surface of the wall 1 on the outdoor B side, and the structure for this purpose is simple as only one drain cylinder part 8 is required, and the drain connected to it is simple. Only one tube and the like can be used, and therefore the cost required for them can be kept low. Further, within the outer frame 4, the motor support 6 extends vertically downward with its legs 6a, and is attached to the outer frame 4.
The strength is greater than that in which the leg portions 6a are extended laterally and connected to the side surface of the outer frame 4. There is no occurrence of cracks at the base as seen in other types of motors, the heavy motor 14 can be continuously supported reliably, and high reliability in use can be obtained. Despite having such an effective structure, the outer frame 4 is open at both the front and rear sides, and the drain cylinder section 8 has a water inlet 9 at the side surface of the part on the leg 6a side of the motor support. Furthermore, since the inside thereof is formed into a hollow shape with a diameter larger than the width of the leg portion 6a of the motor support 6, it is necessary to consider them first in conjunction with the structure of the other water-shielding ribs 7. It can be integrally molded from synthetic resin using a simple split mold that is divided into front and rear parts, thereby achieving further cost reductions.

[Effects of the invention] As is clear from the above description, the bathroom ventilation fan of the present invention includes an outer frame whose front and rear parts are open and whose bottom part slopes downwardly downward.
A motor support is located inside the outer frame and has legs extending vertically downward and connected to the bottom of the outer frame, and a shield that is located behind the motor support and rises from the bottom of the outer frame. a water rib, and a cavity extending from the leg portion of the motor support to a portion rearward of the water shielding rib, having a water inlet on the side surface of the leg side portion, and having an interior diameter larger than the width of the leg portion. It is equipped with a drain cylinder part that forms a shape, and is integrally molded from synthetic resin, so that water droplets generated inside the outer frame can be discharged to the outside without staining the outside wall surface. In addition, the structure can be simplified, the cost can be reduced, and the internal structure can maintain sufficient strength, which is an excellent practical effect.

[Brief explanation of the drawing]

The drawing shows one embodiment of the present invention.
The figure is a perspective view of the main parts, Fig. 2 is a vertical side view of the entire installed state, Fig. 3 is an enlarged longitudinal side view of the drain cylinder part of the main parts, and Fig. 4 is an enlarged view of the same part. FIG. In the figure, 4 is an outer frame, 6 is a motor support, 6a is a leg, 7 is a water-shielding rib, 8 is a drain cylinder, and 9 is a water inlet.

Claims (1)

[Scope of utility model registration request] an outer frame whose front and rear surfaces are open and whose bottom surface slopes downwardly to the rear; a motor support located inside the outer frame and whose legs extend vertically downward and are connected to the bottom surface of the outer frame; A water-shielding rib located rearward from the motor support and rising from the bottom surface of the outer frame; A bathroom ventilation fan characterized by comprising a drain cylinder having a water inlet and a hollow interior with a diameter larger than the width of the legs, which are integrally molded from synthetic resin.