JP4129790B2 - Bathroom ventilator and mounting frame attached to the ventilator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bathroom ventilator that is inserted and attached to an indoor ceiling or wall opening.
[0002]
[Prior art]
Conventionally, as an example of an air conditioner, a bathroom ventilator shown in FIG. 7 is known. In this bathroom ventilator, the apparatus main body 3 is inserted into the mounting opening 2 of the ceiling 1 of the bathroom, and the apparatus main body 3 is supported by the anchor stay 4, and the anchor stay 4 is connected to the floor by the anchor bolt 5. It attaches to the partition wall 6 of.
[0003]
The apparatus main body 3 is configured by a metal metal cover 7 having a box shape on the outside, and a plastic main body case 8 is mounted inside the metal cover 7.
[0004]
An opening 10 for introducing room air and an opening 11 for returning the taken-in air to the room 9 again are formed in a portion of the main body case 8 on the indoor 9 side. A fan case 12 is provided at the back of the opening 10, and a centrifugal suction fan 13 is disposed inside the fan case 12. The suction fan 12 is driven by a fan motor M1.
[0005]
A bell mouth 15 having a suction port 14 for introducing air is provided at the lower part of the fan case 12, and an opening 16 for blowing is formed in the other of the fan case 12. The opening 16 communicates with the air passage 17.
[0006]
Exhaust ports 18 </ b> A and 18 </ b> B leading to the air passage 17 are opened in the side walls of the main body case 8 and the metal cover 7, and a duct joint 19 leading to the exhaust port 18 is attached to the outer edge of the exhaust port 18. A duct D for exhausting room air is connected to the duct joint 19.
[0007]
In the air passage 17 in the main body case 8, a damper 21 that switches the air flow between the exhaust port 18 side that exhausts the air in the room 9 to the outside and the circulation air path 20 that circulates in the room is provided. The damper 21 is linked to an output shaft of a damper motor (not shown) via a link (not shown). The damper 21 switches the flow of air flowing through the air passage 17 according to the rotation angle of the damper motor. When the damper 21 falls to the opening edge side on the circulating air passage 20 side, the air in the blower passage 17 flows from the exhaust port 18 to the duct D via the duct joint 19. When the damper 21 rises to the exhaust port 18 side, the exhaust port 18 side is blocked and air flows to the circulation air passage 20 side.
[0008]
The lower end of the main body case 8 flange 23 abutting the interior side of the edge portion of the ceiling portion 1 is formed, the flange 23, to exhaust the circulating air into the opening 24 and the indoor 9 for sucking the air in the room 9 A plastic front cover 26 in which an opening 25 is formed is attached. The opening 24 communicates with the opening 10, and the opening 25 communicates with the opening 11.
[0009]
[Patent Document 1]
Japanese Patent Application No. 2002-209450 Specification
[Problems to be solved by the invention]
However, in the case of such a conventional bathroom ventilator, the main body case 8 is formed to the inner back of the box-shaped metal cover 7. For this reason, since the amount of plastic used for the main body case 8 is large, the molding die is increased in size, the cost is high, and it is difficult to reduce the size, and the screw hole for attaching the main body case 8 to the metal cover 7 There is a problem that it takes time and labor to process and screw. In addition, since it is difficult to reduce the weight, there are problems in manufacturing and mounting work, such as requiring sufficient consideration of the pullout strength of the anchor bolt 5.
[0011]
The present invention has been made paying attention to such a problem. The amount of resin used in the apparatus main body is reduced as much as possible, the product cost is reduced, the mold is downsized and simplified, and the apparatus main body is reduced. An object of the present invention is to provide a bathroom ventilator capable of facilitating weight reduction, size reduction, and simplification of installation work.
[0012]
[Means for Solving the Problems]
In order to solve the above-described problems, an opening for taking in indoor air, an exhaust port capable of exhausting the taken-in air, and a metal case capable of storing an air suction fan therein, and the metal case In the bathroom ventilator , wherein the metal case is inserted and attached to the interior of the ceiling portion from the mounting opening of the indoor ceiling portion.
A frame-like portion attached to the inside edge of the opening edge portion on the opening edge portion of the metal case; a flange portion extending outward from a lower portion of the frame-like portion and covering an opening edge portion on the indoor side of the attachment opening portion; A mounting frame made of resin that is integrally formed with
Forming a rib extending vertically and horizontally on the lower surface of the flange,
Forming a drain hole for draining water dew condensation inside the metal case at a boundary portion between the frame-shaped portion and the flange portion, surrounded by the ribs ;
The bathroom ventilator characterized in that a sealing member is provided on the upper surface of the flange, and the sealing member is brought into contact with the lower part of the outer wall of the metal case.
[0013]
Moreover, the bathroom ventilator according to claim 2 of the present application is the bathroom ventilator according to claim 1, wherein the attachment frame portion is detachable from the opening edge of the metal case. To do.
[0016]
The bathroom ventilator according to claim 3 of the present application is the bathroom ventilator according to claim 1 or 2, wherein the flange part is disposed between the opening edge of the mounting opening and the flange part. A sealing member is provided.
[0017]
The bathroom ventilator according to claim 4 of the present application is a mounting frame portion for a bathroom ventilator used in the bathroom ventilator according to any one of claims 1 to 3 .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a bathroom ventilator 30 according to an embodiment of the bathroom ventilator of the present application.
[0019]
As shown in FIG. 2, the bathroom ventilation device 30 includes a device main body 34 that is inserted into an attachment opening 33 formed in a bathroom ceiling 32 of the bathroom 31. A partition wall 37 with the upper floor is present in the upper part of the apparatus main body 34, and the bathroom ceiling portion 32 is supported by the partition wall 37. The apparatus main body 34 is screwed and held by an anchor stay 39 that is attached by screwing anchor bolts 38 to the partition wall 37. In addition, the type attached to the attachment opening 33 may be used instead of the type supported by the partition wall 37 by the anchor stay 39 and the anchor bolt 38. When attaching to the attachment opening 33, a support for the metal case 40 is provided in the attachment opening 33.
[0020]
The apparatus main body 34 includes a metal case 40 and an attachment frame portion 41. A portion of the metal case 40 on the bathroom 31 side is an opening 40A. A support frame 40B is fixed to the outer side of the lower end portion of the metal case 40 by screws, and the support frame 40B is fixed to the lower end portion of the anchor stay 39 by screws.
[0021]
A functional component such as a blower fan is configured to be directly attached to a metal case or indirectly via another member without using a resin main body case.
[0022]
The attachment frame 41 is fitted and attached inside the opening 40A. As shown in FIG. 3, the inside of the attachment frame portion 41 opens in a shape similar to the planar shape of the opening 40 </ b> A. The attachment frame portion 41 includes a flange portion 41 </ b> A that protrudes outside the metal case 40 and extends along the bathroom ceiling portion 32, and a frame-like portion 41 </ b> B that fits inside the opening of the metal case 40. As shown in FIGS. 2 and 4, the frame-like portion 41 </ b> B has a height from the lower end portion of the metal case 40 to the vicinity of the height at which the heater 50 described later is disposed. It extends in a frame shape along the shallow. Here, the frame-shaped portion has a cylindrical shape without a bottom portion, and does not extend to the ceiling portion of the metal case 40 like a tube, and is near the opening edge of the lower end portion, and at the longest, the exhaust port 46A. To the lower end edge of.
[0023]
The frame-like portion 41B and the opening edge portion of the metal case 40 are detachably coupled by screws 41C, and a screw-through hole (not shown) is opened at the lower end edge portion of the metal case 40. A screw hole portion 41D is formed in the hole corresponding portion. The screw through holes and the screw hole portions 41 </ b> D are formed at two locations on each of the four sides of the metal case 40.
[0024]
A drain hole 41E for draining water condensed in the metal case 40 is opened at a lower end portion of the frame-shaped portion 41B, which is a boundary portion between the flange portion 41A and the frame-shaped portion 41B of the mounting frame portion 41. Yes. The edge of the drain hole 41E may be inclined so as to guide water to the drain hole 41E.
[0025]
Ribs 41F and 41G having a reinforcing function are formed on the upper surface portion of the flange portion 41A so as to extend vertically and horizontally, and water is supplied to the flange portion 41A by the rib 41G extending parallel to the frame-like portion 41B when viewed from the plane direction. It is prevented from spreading throughout. In addition, seal cushions S1 and S2 are disposed on the back side of the ribs 41F and 41G.
[0026]
5 and 6 show a state in which the seal cushions S1 and S2 (seal) are attached. The seal cushions S <b> 1 and S <b> 2 are formed of plastic rubber as an example, and are pasted up to a position where the seal cushions S <b> 1 and S <b> 2 come into contact with the side wall of the metal case 40. Moreover, the lower end part of the metal case 40 is contacting the part in which the drain hole 41E is formed to the upper surface part of 41 A of flange parts. The frame-side upper surface portion of the seal cushions S1 and S2 is recessed along a shallow groove-shaped recess C provided in the shape portion of the flange portion 41A, and the flange portion 41A and the ceiling portion 32 are sealed with a seal cushion, Water is prevented from escaping into the upper space of the ceiling portion 32. For this reason, water does not accumulate on the flange 41A and does not go around to the back side of the ceiling part 32 of the bathroom, and corrosion and deterioration of the building are prevented.
[0027]
A centrifugal cylindrical suction fan 42 (see FIG. 1) is disposed inside the metal case 40. Around the cylindrical shape of the suction fan 42 is formed a fan case 43 that guides air to the air blowing path 45, and the fan case 43 is formed with a bell mouth 44 that introduces air into the suction fan 42. The suction fan 42 is attached to an output shaft 45 </ b> A of a motor 45 that is attached to the ceiling wall 34 </ b> A above the apparatus main body 34.
[0028]
A damper 48 that switches the air flow between the exhaust air passage 46 and the circulation air passage 47 is disposed in the air passage 45. The damper 48 is linked to the output shaft of a damper motor 48M via links 48A and 48B. The damper 48 switches the flow of the air flowing through the air blowing path 45 according to the rotation angle of the damper motor 48M. When the damper 48 falls to the opening edge on the circulating air passage 47 side, the air in the air blowing passage 45 flows from the exhaust air passage 46 to the duct joint 49 via the exhaust port 46A. When the damper 48 rises toward the exhaust air passage 46, the exhaust air passage 46 is blocked and air flows into the circulation air passage 47, and air is circulated from the circulation air passage 47 into the bathroom 31.
[0029]
A duct joint 49 is disposed on the outer edge of the exhaust port 46A of the exhaust air passage 46, and a duct (not shown) that leads to the outside of the building is connected to the duct joint 49. The circulation air passage 47 is provided with a heater 50 having a large number of fins through which air passes.
[0030]
A cosmetic front panel 51 having a number of long holes for allowing air to pass therethrough is attached to the lower side of the attachment frame portion 41. The front panel 51 is formed with a suction port 52 for sucking air in the bathroom 31 by a suction fan 42, and a filter (not shown) is provided on the back side of the suction port 52. Further, a blowing portion 53 through which the circulating air passes is formed at a portion of the front panel 51 that faces the circulating air passage 47. Holes 55 through which screws 54 pass are formed at the four corners of the front panel 51. The screw 54 is screwed to the edge of the mounting opening 33. The hole 55 after passing through the screw 54 is closed by a cover 56.
[0031]
A board box (not shown) is attached to the ceiling wall 34 </ b> A of the apparatus main body 34. A control board is provided in the board box, and the control board is connected to a power line (not shown) so as to control the motor 45, the heater 50, the damper motor 48M, and the like. 50, the rotation or temperature is controlled by controlling the power supply to the damper motor 48M by the control board.
[0032]
In the bathroom ventilator 30, the metal case 40 is inserted and attached to the inner part of the ceiling part 32 from the attachment opening 33 of the ceiling part 32 of the bathroom 31. The metal case 40 is attached to the metal case 40. An opening 40A for taking in air and an exhaust port 46A through which the taken-in air can be exhausted are opened, and the box has a box shape in which the air suction fan 42 can be stored. The mounting frame portion 41 is attached to the opening edge portion of this. The attachment frame portion 41 is configured such that a flange portion 41 </ b> A that covers the indoor opening edge portion of the attachment opening portion 33 and a frame-like portion 41 </ b> B attached to the opening edge portion of the metal case 40 are integrally formed.
[0033]
For this reason, the molding die for the ventilator 30 for bathrooms is very miniaturized and the cost is reduced, and the amount of plastic used is very small as compared with the prior art. Therefore, the weight of the bathroom ventilator 30 itself is reduced, and the downsizing is promoted, and the simplification of the installation work is promoted.
[0034]
Further, in this bathroom ventilator 30, since the drain hole 41E is formed in at least one of the flange portion 41A and the frame-like portion 41B, it is possible to prevent water from flowing into the back side of the ceiling portion 32 of the bathroom. And since the seal cushion S1, S2 arrange | positioned between the opening edge part of the attachment opening part 32 and the flange part 41A is provided in the flange part 41A, the water to the back side of the ceiling part 32 of a bathroom is further provided. The ingress prevention effect is remarkable.
[0035]
In the embodiment of the present invention, instead of the conventional double structure in which the metal case 40 is put on the resin main body case portion, a blower, a heater, or the like is attached to the metal case 40 via a cover member. The resin part which was used becomes unnecessary. Further, by integrally forming the flange portion 41A and the frame-like portion 41B and making the frame-like portion 41B detachable, even if the frame-like portion 41B is damaged during transportation or the like, the mounting frame portion 41 can be replaced. That's it. Furthermore, even when the seal cushions S1 and S2 of the flange portion 41A of the mounting frame portion 41 are deteriorated, the mounting frame portion 41 or the seal cushions S1 and S2 may be replaced. Furthermore, by providing a drain hole in the mounting frame portion 41, there is an effect that it is possible to prevent water from leaking into the ceiling portion.
[0036]
【The invention's effect】
According to the bathroom ventilation apparatus according to the present, been very miniaturized molding die for bathroom ventilator is as low cost, since the amount of plastic used is very small as compared with the conventional, The weight of the ventilator for the bathroom itself is reduced, which facilitates downsizing and simplifies the installation work.
[0037]
Also, instead of the conventional double structure in which a metal case is put on a resin main body case, a resin part used as a main body case is not required by attaching a blower or heater to the metal case via a cover member. Become.
[0038]
Furthermore, by integrally forming the flange portion and the frame-like portion and making the frame-like portion detachable, even if the frame-like portion is damaged during transportation or the like, the mounting frame portion can be replaced.
[0039]
Furthermore, even when the seal of the flange portion of the mounting frame portion is deteriorated, the mounting frame portion or the seal may be replaced.
[0040]
Moreover, it can prevent that water leaks in a ceiling part by providing a drain hole in a mounting frame part.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a configuration of a bathroom ventilator according to an embodiment of the present application.
FIG. 2 is a cross-sectional view showing a state in which the bathroom ventilator according to the embodiment of the present application is attached to the bathroom ceiling and the structure of the attachment frame.
FIG. 3 is a diagram showing a planar shape of the mounting frame portion shown in FIGS.
4 is a view showing a cross-sectional configuration of the mounting frame portion shown in FIGS.
5 is a partial cross-sectional view showing a configuration of drain holes formed in the flange portion and the frame-like portion of the mounting frame portion shown in FIGS.
6 is a partial cross-sectional view showing a state in which a seal cushion is bonded to the flange portion of the attachment frame portion shown in FIG.
FIG. 7 is a diagram showing a configuration of a conventional bathroom ventilation apparatus.
[Explanation of symbols]
30 Bathroom ventilator 31 Bathroom 32 Ceiling part 33 Mounting opening 34 Main body 40 Metal case 41 Mounting frame part 41A Flange part 41B Frame-like part 41C Screw 41D Screw hole part 41E Drain hole S1, S2 Seal cushion 42 Suction fan

Claims (4)

An opening for taking in indoor air and an exhaust port through which the taken-in air can be exhausted are opened, and a metal case capable of storing an air suction fan therein, and the metal case disposed inside the metal case In the ventilation device for bathrooms, comprising a suction fan , and the metal case is inserted and attached to the interior of the ceiling from the mounting opening of the indoor ceiling.
A frame-like portion attached to the inside edge of the opening edge portion on the opening edge portion of the metal case; a flange portion extending outward from a lower portion of the frame-like portion and covering an opening edge portion on the indoor side of the attachment opening portion; A mounting frame made of resin that is integrally formed with
Forming a rib extending vertically and horizontally on the lower surface of the flange,
Forming a drain hole for draining water dew condensation inside the metal case at a boundary portion between the frame-shaped portion and the flange portion, surrounded by the ribs ;
The bathroom ventilator characterized in that a sealing member is provided on the upper surface of the flange, and the sealing member is brought into contact with the lower part of the outer wall of the metal case . The bathroom ventilation device according to claim 1, wherein the attachment frame is detachable from an opening edge of the metal case. The bathroom ventilator according to claim 1 or 2, wherein a seal member disposed between the opening edge of the mounting opening and the flange is provided on the flange. The attachment frame part for bathroom ventilators used for the ventilator for bathrooms in any one of Claim 1 thru | or 3 .

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