CN111566427B

CN111566427B - Bathroom drier

Info

Publication number: CN111566427B
Application number: CN201880082243.0A
Authority: CN
Inventors: 诹访宏幸; 后藤锭一; 增田健司; 大和秀肇; 竹居寿刚; 本木一郎; 饭田哲史; 长谷川耕平; 安江宣征
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2018-01-16
Filing date: 2018-01-16
Publication date: 2021-11-02
Anticipated expiration: 2038-01-16
Also published as: WO2019142240A1; TWI664012B; CN111566427A; JPWO2019142240A1; TW201932185A; JP7050820B2

Abstract

The bathroom dryer is provided with: a blower; a main body part having a housing in which a blower is housed and a suction port through which an air flow is drawn from the bathroom into the housing by operation of the blower; a panel disposed inside the bathroom of the main body; and a filter unit (10) which is detachably attached to the panel and covers the suction port. The filter unit (10) has a net (15) through which an air flow passes and a grid unit (16) which divides the surface of the net (15) into a grid shape and fixes the net (15). The lattice section (16) has a first portion that stands upright from the surface of the net (15), and a second portion that is lower in height in a direction perpendicular to the surface of the net (15) than the first portion and that protrudes from the first portion along the net (15).

Description

Bathroom drier

Technical Field

The present invention relates to a bathroom dryer that circulates air taken in from a bathroom to a bathroom and discharges the air taken in from the bathroom to the outside of the bathroom.

Background

There is known a bathroom dryer including a circulation port through which a circulation airflow for circulating air taken in from a bathroom into the bathroom and an exhaust port through which an exhaust airflow for exhausting air taken in from the bathroom to the outside of the bathroom passes. The bathroom dryer performs a heating operation in which air from the bathroom is heated by a heater and hot air is supplied to a circulation port, a ventilation operation in which air from the bathroom is supplied to an exhaust port, and a drying operation in which air from the bathroom is supplied to the exhaust port and hot air or cool air is supplied to the circulation port. A filter unit for removing dust flowing together with an air flow from the air flow is detachably attached to an air inlet through which the air flow taken in from the bathroom passes in the bathroom dryer.

Patent document 1 discloses a bathroom dryer including a detachable filter unit. Generally, the filter unit is provided with a mesh through which an air flow passes and a lattice unit forming a lattice separating the mesh. Dust adhering to the filter unit is removed by cleaning. The bathroom dryer suppresses a decrease in air volume caused by clogging of the filter unit by periodic cleaning of the filter unit.

Prior art documents

Patent document

Patent document 1: japanese patent No. 5460921

Disclosure of Invention

Problems to be solved by the invention

The filter unit may be broken by an external force applied thereto each time cleaning is performed. In some cases, the mesh is broken inside the lattice portion during the production of the filter.

The present invention has been made in view of the above circumstances, and an object thereof is to obtain a bathroom dryer capable of reducing breakage of a mesh in a filter portion.

Means for solving the problems

In order to solve the above problems and achieve the object, a bathroom dryer of the present invention includes: a blower; a main body part having a housing in which a blower is housed and a suction port through which an air flow is drawn from the bathroom into the housing by operation of the blower; a panel disposed inside the bathroom of the main body; and a filter unit detachably attached to the panel and covering the suction port. The filter unit has a net through which an air flow passes and a grid unit which divides the surface of the net into grids and fixes the net. The lattice portion has a first portion standing from the surface of the net, and a second portion having a height in a direction perpendicular to the surface of the net lower than the first portion, and protruding from the first portion along the net, the first portion being thicker than the second portion in the direction perpendicular to the surface of the net.

ADVANTAGEOUS EFFECTS OF INVENTION

The bathroom dryer of the present invention achieves an effect of being able to reduce breakage of the mesh in the filter portion.

Drawings

Fig. 1 is a diagram showing a configuration of a bathroom dryer according to embodiment 1 of the present invention.

Fig. 2 is a perspective view illustrating a base and a panel provided in the bathroom dryer shown in fig. 1.

Fig. 3 is a view showing a filter unit provided in the bathroom dryer shown in fig. 1.

Fig. 4 is a cross-sectional view of the filter portion taken along line IV-IV shown in fig. 3.

Detailed Description

Hereinafter, a bathroom dryer according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiment.

Embodiment 1.

Fig. 1 is a diagram showing a configuration of a bathroom dryer 100 according to embodiment 1 of the present invention. The bathroom dryer 100 is installed on a ceiling of a bathroom. The bathroom dryer 100 is connected to a duct provided to connect the ceiling surface to the outside of the bathroom. In fig. 1, illustration of the ceiling and the duct is omitted. The bathroom dryer 100 may also be mounted on a wall or window of a bathroom.

The bathroom dryer 100 includes a main body 1, a sirocco fan (japanese: シロックファン)2 as a blower, and a panel 5 disposed inside a bathroom of the main body 1. The main body 1 includes a housing 3 and a base 4, the housing 3 is a box housing the sirocco fan 2, and the base 4 is provided inside a bathroom of the housing 3.

The main body 1 is composed of a case 3, components housed in the case 3, and a base 4. Fig. 1 schematically shows main components housed in the housing 3, and shows side structures of the base 4 and the panel 5. A fan motor 9 as a drive source of the sirocco fan 2 and a damper 12 described later are housed in the case 3.

The sirocco fan 2 is rotated by the driving force of the fan motor 9 to generate an air flow. A suction opening 6 is provided in the base 4 for the passage of an air flow which is sucked from the bathroom into the housing 3 by the operation of the sirocco fan 2. Further, the base 4 is provided with a circulation port 7 through which a circulation airflow for circulating air taken in from the bathroom into the bathroom is passed. An exhaust port 8 through which an exhaust gas flow for discharging air taken in from the bathroom to the outside of the bathroom is provided in the side surface 3a of the housing 3. The exhaust port 8 is connected to a pipe.

The housing 3 is inserted from the bathroom through an opening provided in the ceiling to the rear of the ceiling, and the housing 3 is disposed on the rear of the ceiling. By fixing the base 4 to the housing 3, the main body 1 is installed on the ceiling with the suction port 6 and the circulation port 7 facing downward in the bathroom. The panel 5 covers the lower side of the base 4. The surface of the panel 5 facing downward is a design surface having a design.

The casing 3 is provided with a first duct 13 for causing the flow of air to advance from the sirocco fan 2 to the circulation port 7 and a second duct 14 for causing the flow of air to advance from the sirocco fan 2 to the exhaust port 8. The damper 12 is disposed at a branch of the first duct 13 and the second duct 14. The damper 12 is rotationally driven to adjust the opening of the first duct 13 and the opening of the second duct 14. The heater 11 is disposed above the circulation port 7. The heater 11 heats air advancing toward the circulation port 7.

The bathroom dryer 100 performs: a heating operation in which air from the inside of the bathroom is heated by the heater 11 and hot air is blown out through the circulation port 7, a ventilation operation in which air from the inside of the bathroom is discharged to the outside of the bathroom through the exhaust port 8, and a drying operation in which air from the inside of the bathroom is discharged through the exhaust port 8 and hot air or cool air is blown out through the circulation port 7. The bathroom dryer 100 drives the damper 12 to switch between the heating operation, the ventilation operation, and the drying operation.

Fig. 2 is a perspective view showing the base 4 and the face plate 5 of the bathroom dryer 100 shown in fig. 1. Fig. 2 shows a state in which the base 4 and the panel 5 provided below the base 4 are viewed from below. An opening 17 through which a circulating airflow from the circulation port 7 to the bathroom passes is provided in the panel 5 at a position facing the circulation port 7. The circulating airflow from the first airflow path 13 passes through the circulation port 7 and the opening 17 and advances into the bathroom.

The bathroom dryer 100 includes a filter unit 10, and the filter unit 10 is detachably attached to the panel 5 and covers the suction port 6. The filter unit 10 is fitted into an opening 19 provided in the panel 5. The filter unit 10 includes a mesh 15 through which an air flow passes, and a grid 16 which divides the surface of the mesh 15 into a grid shape and fixes the mesh 15. The air flow advancing from the bathroom to the suction port 6 passes through the net 15 of the filter unit 10 attached to the panel 5. The filter unit 10 collects dust flowing together with the air flow with the mesh 15, and removes the dust from the air flow taken into the housing 3. Thereby, the bathroom dryer 100 can reduce the dust entering into the housing 3.

Fig. 3 is a diagram showing the filter unit 10 included in the bathroom dryer 100 shown in fig. 1. The filter unit 10 has a filter frame 20, and the filter frame 20 is an outer edge portion of the filter unit 10. The lattice portion 16 is provided in a region surrounded by the filter frame 20. The lattice section 16 includes linear vertical line portions 23 and horizontal line portions 24 that are orthogonal to each other. The longitudinal portions 23 are parallel to each other. The crosshairs 24 are parallel to each other. The net 15 is separated by a plurality of longitudinal lines 23 and a plurality of transverse lines 24. The number of the vertical line portions 23 and the horizontal line portions 24 is not limited to the number shown in fig. 3, and may be any number. The mesh 15 is formed with a fine resin material that forms a mesh capable of filtering dust from an air flow. The material of the net 15 may be other than resin. The material of the lattice portion 16 is resin. The filter frame 20 surrounds the mesh 15 and the lattice portion 16.

At the first end 26 of the filter frame 20, two hinge portions 21 are provided which can be engaged with the edges of the opening 19 of the panel 5. A rectangular recess 25 is provided at a second end 27 of the filter frame 20 opposite to the first end 26. The recessed portion 25 is provided with a claw portion 22. The claw portion 22 can be engaged with a plate spring-like claw receiving portion 18 provided on the panel 5. In a state where the filter unit 10 is attached to the panel 5, the hinge portion 21 is engaged with the opening 19, and the claw portion 22 is engaged with the claw receiving portion 18. The number of the hinge portions 21 is not limited to two, and may be any number.

In a state where the filter unit 10 is attached to the panel 5, the claw receiving portion 18 is pressed from below, and the engagement of the claw portion 22 with the claw receiving portion 18 is released. When the finger of the pressing claw receiving portion 18 is hooked on the concave portion 25 and a portion of the filter unit 10 on the second end 27 side is pulled downward, the filter unit 10 rotates about the first end 26. The hinge portion 21 is in a state of being released from engagement with the opening 19 by rotation of the hinge portion 21 with respect to the panel 5. The engagement of the hinge portion 21 with the opening 19 is released by rotating the filter unit 10 and pulling the filter unit 10. Thereby, the filter unit 10 is detached from the panel 5. The filter unit 10 removed from the panel 5 is attached to the panel 5 in the reverse order to that when removed from the panel 5.

Fig. 4 is a cross-sectional view of the filter unit 10 taken along line IV-IV shown in fig. 3. The cross section shown in fig. 4 is a cross section including one longitudinal line portion 23. Each of the vertical lines 23 and each of the horizontal lines 24 provided in the filter unit 10 have the same cross-sectional structure as that shown in fig. 4. Arrow a shown in fig. 4 indicates an upward direction, which is a direction from the filter unit 10 toward the suction port 6. The arrow B shown in fig. 4 indicates downward.

The longitudinal portion 23 has a first portion 31 and a second portion 32, the first portion 31 standing vertically from the surface of the net 15, the second portion 32 having a height in a direction perpendicular to the surface of the net 15 lower than the first portion 31 and the second portion 32 protruding from the first portion 31 along the net 15. The first portion 31 is erected on the side of the net 15 closer to the suction port 6 and on the side of the net 15 opposite to the side of the suction port 6. The second portion 32 is provided on the side of the net 15 closer to the suction port 6 and on the side of the net 15 opposite to the side closer to the suction port 6. The lattice 16 sandwiches the net 15 between the portion of the first portion 31 and the second portion 32 on the side of the net 15 closer to the suction port 6 and the portion of the net 15 on the side opposite to the side of the suction port 6.

The first region 31 is provided to protrude vertically from the net 15 to the upper and lower sides. The first portion 31 is formed as: the protrusion from the net 15 is large compared to the protrusion from the net 15 downwards. The second portion 32 has a smaller upward and downward projection than the first portion 31. The second portion 32 protrudes from the first portion 31 so as to form a brim on the upper and lower sides of the net 15. In the vertical direction, the thickness of the portion of the second region 32 above the mesh 15 is the same as the thickness of the portion of the second region 32 below the mesh 15. The net 15 is held and fixed by the portion of the first portion 31 and the second portion 32 above the net 15 and the portion of the first portion 31 and the second portion 32 below the net 15. In embodiment 1, the second portion 32 is provided in the lattice portion 16, so that the width of the fixed portion of the mesh 15 to the lattice portion 16 is increased as compared with the case where the lattice portion 16 is only the first portion 31.

When cleaning the filter unit 10, an external force such as a force generated by a tool such as a vacuum cleaner or a brush touching or a water pressure in the case of washing is applied to the filter unit 10. The filter unit 10 can reduce breakage of the net 15 when an external force is applied to the net 15 by expanding the width of the fixed portion of the net 15 and the lattice portion 16 by the second portion 32. In addition, the net 15 is held from both the upper and lower directions by the first portion 31 and the second portion 32. Even when an external force is applied to the net 15 of the filter unit 10 from either the upper side or the lower side, breakage of the net 15 can be reduced.

The length D shown in fig. 4 is a length from the side surface 34 of the first portion 31 to the second portion 32 at the end of the second portion 32 opposite to the first portion 31. The length D is 0.5mm to 5 mm. By providing the second portion 32 having the length D of 0.5mm or more, the filter unit 10 can withstand an external force applied during cleaning. Further, by setting the length D to 5mm or less, the bathroom dryer 100 can suppress an increase in pressure loss due to the air flow being blocked by the filter unit 10. The bathroom dryer 100 can suppress a decrease in air blowing performance by suppressing an increase in pressure loss. By setting the length D of the filter unit 10 to 0.5mm or more and 5mm or less, breakage of the mesh 15 can be reduced and reduction in air blowing performance can be suppressed.

The filter frame 20 shown in fig. 3 has a third portion 33, and the third portion 33 has the same cross-sectional shape as the second portion 32 and fixes the net 15. The entire outer edge of the net 15 is fixed to the third portion 33.

In the manufacture of the filter unit 10, after the mesh 15 is sandwiched between the resin molding members constituting the filter frame 20 and the lattice 16, the resin is poured into the gap between the molding members and the mesh 15, and the poured resin is cured, thereby fixing the mesh 15 to the lattice 16 and the filter frame 20.

When the resin is caused to flow into the grid portion 16, the resin flow rate decreases while the resin flows from the first portion 31 to the second portion 32. In the case where the flow of the resin at the first site 31 is high to such an extent that breakage of the net 15 is likely to occur, since the speed of the resin flow at the second site 32 can be reduced, breakage of the net 15 at the second site 32 can be reduced. The filter unit 10 can enhance the fixation of the mesh 15 in the lattice portion 16 by reducing the breakage of the mesh 15 at the second portion 32. In addition, the filter unit 10 can reduce the breakage of the mesh 15 caused by the breakage of the mesh 15 in the lattice portion 16 spreading out of the lattice portion 16. Even when the breakage of the mesh 15 occurs at the first portion 31, the filter unit 10 can reduce the breakage of the mesh 15 caused by the breakage in the first portion 31 spreading out of the lattice unit 16.

In the filter unit 10, the third portion 33 is provided in the filter frame 20, and thus the width of the fixed portion between the mesh 15 and the filter frame 20 is increased, thereby reducing the breakage of the mesh 15 when an external force is applied to the mesh 15. In addition, similarly to the second portion 32, the speed of the resin flow can be reduced also at the third portion 33. The filter section 10 can reduce the breakage of the mesh 15 at the third portion 33. The filter unit 10 can enhance the fixation of the mesh 15 in the filter frame 20 by reducing the breakage of the mesh 15 at the third portion 33. In addition, the filter unit 10 can reduce the breakage of the mesh 15 caused by the expansion of the breakage of the mesh 15 inside the filter frame 20 to the outside of the filter frame 20.

The vertical line portions 23 and the horizontal line portions 24 may have a cross-sectional shape different from that shown in fig. 4. The first portion 31 may have the same size of protrusion above and below the net 15. The second region 32 may be provided only on one of the upper and lower sides of the net 15. Even when the second portion 32 is provided on one of the upper side and the lower side of the mesh 15, the filter unit 10 can obtain an effect of reducing the breakage of the mesh 15.

According to embodiment 1, the bathroom dryer 100 has an effect that the breakage of the mesh 15 in the filter unit 10 can be reduced by providing the second portion 32 protruding from the first portion 31 along the mesh 15 in the filter unit 10.

The configurations described in the above embodiments are examples of the contents of the present invention, and may be combined with other known techniques, and a part of the configurations may be omitted or modified within a range not departing from the spirit of the present invention.

Description of reference numerals

1 main body part, 2 sirocco fan, 3 casing, 3a side surface, 4 base, 5 panel, 6 suction inlet, 7 circulation port, 8 exhaust outlet, 9 fan motor, 10 filter part, 11 heater, 12 windshield, 13 first air path, 14 second air path, 15 net, 16 grid part, 17 and 19 opening, 18 claw receiving part, 20 filter frame, 21 hinge part, 22 claw part, 23 vertical line part, 24 horizontal line part, 25 concave part, 26 first end, 27 second end, 31 first part, 32 second part, 33 third part, 34 side surface, 100 bathroom drier.

Claims

1. A bathroom dryer is characterized by comprising:

a blower;

a main body portion having a casing in which the blower is housed and a suction port through which an air flow is drawn from a bathroom into the casing by operation of the blower;

a panel disposed inside the bathroom of the main body; and

a filter unit detachably attached to the panel and covering the suction port,

the filter unit includes:

a mesh through which the air stream passes; and

a lattice portion that partitions a surface of the net into a lattice shape and fixes the net,

the lattice portion has a first portion standing from a surface of the net and a second portion having a lower height in a direction perpendicular to the surface of the net than the first portion, the second portion protruding from the first portion along the net, as a solid member using resin,

the first region being thicker than the second region in a direction perpendicular to the surface of the web,

the first portion is erected on a side of the net opposite to the suction port,

the second portion is provided on a side of the net opposite to the side of the suction port and on a side of the net opposite to the side of the suction port,

the grid portion sandwiches the mesh between the entire portion of the first portion and the entire portion of the second portion on the side of the mesh closer to the suction port and the entire portion of the mesh on the side opposite to the side of the suction port.

2. The bathroom dryer of claim 1,

the length from the side surface of the first portion to the end portion of the second portion on the side opposite to the first portion is 0.5mm or more and 5mm or less.

3. Bathroom dryer according to claim 1 or 2,

the filter part has a filter frame surrounding the mesh and the lattice part,

the filter frame has a third portion having the same cross-sectional shape as the second portion and fixing the mesh.