TWI714980B - Bathroom dryer - Google Patents

Abstract

A bathroom dryer includes: a first control board housing portion (22) that houses a control board (9) that controls the action of a blower; a resin board (10), which is installed in the interior of the first control board housing portion (22) , Between the inner surface of the first control board accommodating portion (22) and the board surface opposite to the board surface of the control board (9). The resin plate (10) is provided with ribs that space the first surface opposed to the inner surface and the inner surface. The ribs are provided along the outer periphery of the first surface, and are in contact with the inner side of the control board accommodating portion opposed to the side surface of the resin plate in the interior of the control board accommodating portion.

Description

Bathroom dryer

The present invention relates to a bathroom dryer, which can circulate the air taken in from the bathroom to the bathroom and discharge the air taken in from the bathroom to the outside of the bathroom.

Known are a window-mounted bathroom dryer installed on the window of the bathroom, and a wall-mounted bathroom dryer installed on the wall of the bathroom, which can circulate the air sucked in from the bathroom to the bathroom and suck in from the bathroom The air is discharged outside the bathroom. The bathroom dryer installed in the bathroom has a form in which a panel with an air suction port and an air blowing port is exposed in the bathroom, and the main body is arranged outside the bathroom. The main body includes a fan for blowing air and a blower for a fan motor that drives the fan, a fan housing that forms the air path of the fan, a heater that heats the air blown by the fan, and a blower that blows out the air heated by the heater Parts such as an outlet, an air brake that switches the operation mode, a motor that drives the air brake, and a control circuit that controls the operation of the blower and bathroom dryer are housed in the main body.

In order to avoid the occurrence of erroneous operation caused by water and moisture, the control circuit is housed in the main body part arranged outside the bathroom while being housed in a dedicated housing.

In the heating device for a bathroom disclosed in Patent Document 1, a control device is arranged in a portion adjacent to the side surface of the body in the interior of the body. Advanced technical literature Patent Literature:

Patent Document 1: Japanese Patent Application Publication No. 2007-40634

The problem that the invention solves

In the bathroom dryer installed in the bathroom, when there is a difference in the ambient temperature between the inside and outside of the bathroom, or when the temperature of the outside air is low and the housing containing the control circuit becomes cold, the housing containing the control circuit There is condensation inside. In addition, there is a concern that water may invade the inside of the housing due to condensation that occurs outside the housing. In order to ensure the necessary insulation in the control circuit and prevent the control circuit from malfunctioning due to water, the surface of the control circuit is generally potted to pour insulating materials such as resin on it.

However, when potting is applied to the control circuit, the manufacturing operation of the bathroom dryer becomes complicated, and the weight of the bathroom dryer increases. Therefore, in the bathroom dryer, there is an urgent need for a structure capable of suppressing erroneous operation due to condensation without causing complication of manufacturing operations and increase in weight.

The present invention is in view of this, and its object is to obtain a bathroom dryer capable of suppressing erroneous operation due to condensation without complicating manufacturing operations and increasing weight. Means to solve the problem

In order to solve the above-mentioned problems and achieve the objective, the bathroom dryer of the present invention includes: a blower that sucks air from the bathroom; a control board to control the action of the blower; a control board accommodating part to accommodate the control board; a resin board, which is installed in the control board housing In the interior of the control board, between the inner surface of the control board housing portion opposite to the board surface of the control board and the board surface. The resin plate is provided with ribs that space the first surface opposed to the inner surface and the inner surface. The ribs are provided along the outer periphery of the first surface, and are in contact with the inner side of the control board accommodating portion opposed to the side surface of the resin plate in the interior of the control board accommodating portion. Invention effect

The bathroom dryer of the present invention exerts the following effect: it is possible to suppress erroneous operation due to condensation without accompanying the complication of the manufacturing operation and the increase in weight.

Hereinafter, the bathroom dryer of the embodiment of the present invention will be described in detail based on the drawings. In addition, the present invention is not limited to this embodiment. In addition, in the drawings shown below, for easy understanding, the reduction ratio of each member may be different from the actual one. The same is true among the various drawings.

Implementation mode 1. Fig. 1 is a perspective view showing a bathroom dryer 100 according to Embodiment 1 of the present invention. 2 is a perspective view of the bathroom dryer 100 shown in FIG. 1 as viewed from the back side, and is a perspective view showing a state in which the outer casing 1 is removed. Fig. 3 is a perspective view showing the internal structure of the main body 21 of the bathroom dryer 100 shown in Fig. 1. In FIG. 1, the lower right direction is the front side of the bathroom dryer 100, and the upper left direction is the back side of the bathroom dryer 100. In addition, in FIGS. 1 to 3, the lower side in the drawings is the lower side in the vertical direction when the bathroom dryer 100 is installed.

The bathroom dryer 100 of the first embodiment is a window-installed bathroom dryer that can be installed on the window of the bathroom. In addition, the bathroom dryer 100 can also be used as a wall-mounted bathroom dryer 100 that can be installed on the wall surface of the bathroom. The bathroom dryer 100 can perform a heating operation to blow warm air to the bathroom, a ventilation operation to exhaust the bathroom air to the outside, and a drying operation to simultaneously blow warm air to the bathroom and exhaust air in the bathroom.

The bathroom dryer 100 of the first embodiment has a panel 2 exposed in the bathroom and constituting a design surface, and a rectangular main body 21 covered by a box-shaped metal shell. The panel 2 is configured to include a flat panel substrate 3 installed in a window in the bathroom, and a flat front panel 4 arranged on the inner side of the bathroom from the panel substrate 3. In the first embodiment, the outer shape of the panel substrate 3 and the front panel 4 in the in-plane direction is a square shape. The air outlet 5 provided in the front panel 4 constitutes a circulating air outlet for blowing warm air.

The front panel 4 is arranged in a state separated from the panel substrate 3. Turn the panel handle to loosen the engagement portion (not shown) of the front panel 4 and the panel substrate 3, thereby opening the front panel 4 without using tools. Between the panel substrate 3 and the front panel 4, a gap for sucking in the air in the bathroom is provided. The bathroom dryer 100 sucks air in the bathroom from the upper surface side of the panel 2 and the left and right side surfaces of the panel 2 in three directions.

As shown in FIGS. 2 and 3, the main body 21 has a main body 13 and a first control board accommodating portion 22 that are covered by the outer casing 1 that constitutes the outer contour of the bathroom dryer 100. The main body 13 includes a fan 16 for blowing air and a fan motor 17 for driving the fan 16. The fan motor 17 and the fan 16 constitute a blower 20. In addition, in FIG. 3, only a part of the shaft of the fan motor 17 is shown due to the description of the direction. In addition, inside the main body 21, in addition to the blower 20, a fan case that forms an air path for the air flow generated by the fan 16, a heater that heats the air blown by the fan, and the heater is heated. The blower outlet for blowing out the air, the air brake that switches the air path of the air flow generated by the fan 16, and the motor that drives the air brake.

Inside the main body 13, there is formed an air path formed by the main body 13 and the fan housing and allowing the wind blown by the fan 16 to travel toward the blowing outlet 5, and formed by the main body 13 and the fan housing. An air path is formed so that the wind blown by the fan 16 travels toward an exhaust port (not shown).

A control circuit that controls the operation of the blower 20 and the air brake and controls the operation of the bathroom dryer 100 is accommodated in the first control board housing portion 22. The control circuit is composed of an electronic circuit in which a plurality of electronic components are mounted on the control board 9. The first control board storage portion 22 is fixed to the side surface of the main body 13 inside the outer casing 1.

Fig. 4 shows a side view of the installation state of the bathroom dryer 100 shown in Fig. 1. The installation of the bathroom dryer 100 is performed as shown in FIG. 4, the aluminum plate 41 provided with the opening of the same size as the outer shell 1 is fixed to the window frame 42, and the main body 21 is pressed in from the bathroom side The opening of the plate 41. In FIG. 4, the lower side in the figure is the lower side in the vertical direction.

Fig. 5 is an exploded perspective view of the first control board storage section 22 of the bathroom dryer 100 shown in Fig. 1. Fig. 6 is a perspective view of the resin plate 10 of the bathroom dryer 100 shown in Fig. 1 viewed from the side of the first surface 10e. Fig. 7 is a perspective view of the resin board 10 of the bathroom dryer 100 shown in Fig. 1 viewed from the second surface 10f side. FIG. 8 is a cross-sectional view of a main part showing the internal structure of the first control board storage portion 22 of the bathroom dryer 100 shown in FIG. 1, and is a cross-sectional view along the line VIII-VIII in FIG. 2. In FIG. 5, the lower side in the figure is the lower side in the vertical direction in the installation state of the bathroom dryer 100. In FIG. 6, the right side in the figure is the lower side in the vertical direction in the installation state of the bathroom dryer 100. In FIG. 7, the left side in the figure is the lower side in the vertical direction in the installation state of the bathroom dryer 100.

The control board 9 is housed in the first control board accommodating section 22 in a state of being housed in the second control board accommodating section 23. The first control board accommodating portion 22 is constituted by screwing a box-shaped sheet metal cover 12 with an open side to the sheet metal substrate 7 and is a metal control board accommodating portion for accommodating the control board 9. The first control board storage portion 22 is fixed to the main body 13 with screws. The second control board accommodating portion 23 is configured by fitting and fixing a resin board 10 to a box-shaped resin case 8 having an opening on one surface, and is a resin-made control board accommodating portion for accommodating the control board 9.

The control board 9 is fixed to the resin case 8 by screws. The resin case 8 is fixed to the sheet metal substrate 7 by screws. The fixing hooks 10 a for fixing the resin case 8 are provided at two positions opposite to each other on the resin plate 10. The fixing holes 8a for hooking the fixing hooks 10a of the resin plate 10 are provided at two positions on the resin housing 8 corresponding to the fixing hooks 10a. Furthermore, the fixing hook 10 a of the resin plate 10 is fitted into the fixing hole 8 a of the resin case 8, thereby fixing the resin plate 10 to the resin case 8.

The control board 9 is a second control board housing portion 23 that is a control board housing portion made of resin, while the mounting surface 9a, which is the board surface of the control board 9 on which a plurality of electronic components are mounted, is housed in a state facing the resin board 10 in. Moreover, the resin board 10 is provided on the inner surface 12a of the sheet metal cover 12 and the control board 9 facing the mounting surface 9a of the control board 9 inside the first control board housing portion 22 which is a metal control board housing portion Between the mounting surfaces 9a. The inner surface 12 a of the sheet metal cover 12 facing the mounting surface 9 a of the control board 9 is the inner surface 22 a of the first control board housing portion 22 facing the mounting surface 9 a of the control board 9. In addition, the inner surface 12a of the sheet metal cover 12 is the inner surface of the surface not adjacent to the main body 13 in the first control board accommodating portion 22, which is the first control that faces the board surface of the control board 9. Among the surfaces of the substrate accommodating portion 22, the inner surface of the exposed surface.

Inside the first control board accommodating portion 22, the resin board 10 provided on the inner surface 12a side of the sheet metal cover 12 in the control board 9 can function as a partition between the inner surface 12a of the sheet metal cover 12 and the control board 9. Thermal layer. That is, in the bathroom dryer 100, by providing the resin board 10, the periphery of the control board 9 in the inside of the 1st control board storage part 22 is suppressed from cooling. Therefore, the bathroom dryer 100 is equipped with the resin board 10, when there is a difference in the ambient temperature between the inside and outside of the bathroom, or when the temperature of the outside air decreases due to rain, and the first control board storage portion 22 becomes cold, etc. Therefore, it is possible to suppress the occurrence of condensation around the control board 9 in the interior of the first control board housing portion 22.

The first surface 10 e of the resin board 10 is a surface on the side opposite to the inner surface 22 a of the first control board housing portion 22 in the resin board 10. The second surface 10f of the resin plate 10 is a surface facing the side opposite to the side to which the first surface 10e is directed in the resin plate 10.

As shown in FIG. 6, on the first surface 10e of the resin plate 10, a slit rib 10b is provided along the outer periphery of the first surface 10e, which serves as the inner surface 12a of the sheet metal cover 12 and the first surface of the resin plate 10. The first rib separated from the surface 10e. When the resin plate 10 is housed in the first control board accommodating portion 22, the slit ribs 10b are in contact with the inner surface 12a of the sheet metal cover 12, whereby the inner surface 12a of the sheet metal cover 12 and the first control board 10 An air layer 18 is formed between one surface 10e.

The air layer 18 formed between the inner surface 12 a of the sheet metal cover 12 and the first surface 10 e of the resin plate 10 functions as a heat insulating layer between the inner surface 12 a of the sheet metal cover 12 and the resin plate 10. That is, the air layer 18 functions as a heat insulating layer between the inner surface 12 a of the sheet metal cover 12 and the control substrate 9. Therefore, in the bathroom dryer 100, when the ambient temperature inside and outside of the bathroom is different by installing the air layer 18, or when the temperature of the outside air decreases due to rain, the first control board storage portion 22 becomes cold, etc. It is possible to suppress the occurrence of dew condensation around the control board 9 in the interior of the first control board housing portion 22.

Moreover, as shown in FIG. 6, the 1st notch 10d for drainage is provided in the part located on the lower side of the vertical direction in the installation state of the bathroom dryer 100 in the rib 10b for slits. In addition, on the sheet metal cover 12, a second notch for drainage is provided at a position corresponding to the first notch 10d for drainage of the rib 10b for the gap in the portion on the lower side in the vertical direction when the bathroom dryer 100 is installed. 12b.

Furthermore, by providing the first drainage groove 10d in the slit rib 10b and the drainage second groove 12b in the sheet metal cover 12, the inner surface 12a of the sheet metal cover 12 and the first surface 10e of the resin plate 10 The intermediate air layer 18 communicates with the outside of the first control board storage portion 22. Therefore, even if condensation occurs in the air layer 18 between the inner surface 12a of the sheet metal cover 12 and the first surface 10e of the resin plate 10, the resin plate 10 and the surface of the sheet metal cover 12 on the air layer 18 side adhere to Condensed water may be moved to the lower side in the vertical direction by gravity and drained through the first slot 10d for drainage and the second slot 12b for drainage. Thereby, the bathroom dryer 100 can eliminate the influence of moisture on the control board 9 caused by the condensation between the inner surface 12a of the sheet metal cover 12 and the first surface 10e of the resin plate 10.

In addition, the electronic components such as the stepping motor 14 arranged under the first control board housing portion 22 are covered by the cover 19. Therefore, the dew condensation water discharged from the air layer 18 does not drip onto electronic components such as the stepping motor 14.

In addition, as shown in FIG. 8, the slit rib 10b is in contact with the inner surface 12c of the sheet metal cover 12 facing the side surface 10g of the resin plate 10 in the inside of the first control board housing portion 22. In addition, the side surface 10g of the resin plate 10 is in contact with the inner side surface 12c of the sheet metal cover 12 facing each other. As a result, in the bathroom dryer 100, the contact area between the resin plate 10 and the sheet metal cover 12 is increased, and moisture can be prevented from flowing from the air layer 18 between the inner surface 12a of the sheet metal cover 12 and the first surface 10e of the resin plate 10 to control The substrate 9 side invades.

The height and width of the rib 10b for slits are not particularly limited as long as the above-mentioned effects can be obtained.

As shown in Figures 7 and 8, the second surface 10f of the resin plate 10 is provided along the outer periphery of the second surface 10f as a second rib to prevent water from entering the second control board housing portion 23. Rib 10c. The opening end surface 8c which is the end surface on the opening side of the resin case 8 is a stepped shape following the shape of the outer peripheral side region in the second surface 10f of the resin plate 10. Thereby, the opening end surface 8c, which is the end surface on the opening side of the resin case 8, is the outer peripheral edge portion of the second surface 10f that is the resin plate 10, which is closer to the outer periphery than the water intrusion prevention rib 10c. 10h. The side surface of the outer peripheral side of the resin plate 10 in the water intrusion prevention rib 10c and the upper surface of the water intrusion prevention rib 10c are in contact.

Thereby, in the bathroom dryer 100, the contact area between the resin case 8 and the resin plate 10 can be increased to prevent water from intruding into the inside of the second control board storage portion 23.

As shown in FIG. 5, in the resin housing 8, the portion located on the lower side in the vertical direction when the bathroom dryer 100 is installed is provided with a wire (not shown) extending from the control board 9 to the outside. It has a U-shaped groove 8b in a U-shape. A resin wire sleeve 11 through which a wire (not shown) extending from the control board 9 passes is embedded in the U-shaped groove 8b. As shown in FIG. 7, in the resin board 10, the contact part 10i which the end surface of the electric wire sleeve 11 abuts is provided in the part located on the lower side of the vertical direction in the installation state of the bathroom dryer 100. As shown in FIG. Furthermore, the wire sleeve 11 is fixed in a state surrounded by the U-shaped groove 8b of the resin case 8 and the contact portion 10i of the resin plate 10. The lead wire extending from the control board 9 is fixed by passing through the wire sleeve 11 and extends downward from the second control board housing portion 23.

Thereby, the intrusion of the water inside the second control board accommodating portion 23 caused by the wire extending from the control board 9 from the second control board accommodating portion 23 is prevented, and the wire can be led to the second control board. The outside of the substrate storage portion 23. That is, the second control board accommodating portion 23 insulates the control board 9 from the outside by the resin case 8 and the resin plate 10, and then covers the wire extending from the control board 9 with the wire sleeve 11 to form the wire and The externally insulated barrier structure prevents water from entering the inside of the second control board housing portion 23 at the same time. In addition, the communication between the inside and the outside of the second control board accommodating portion 23 is blocked and is in a sealed state.

As described above, in the bathroom dryer 100 of the first embodiment, the resin plate 10 disposed between the inner surface 12a of the sheet metal cover 12 and the control board 9 acts as a gap between the inner surface 12a of the sheet metal cover 12 and the control board 9 The insulation layer. In addition, in the bathroom dryer 100, the air layer 18 formed between the inner surface 12a of the sheet metal cover 12 and the first surface 10e of the resin plate 10 acts as a gap between the inner surface 12a of the sheet metal cover 12 and the resin plate 10. heat insulation. Thereby, in the bathroom dryer 100, the periphery of the control board 9 in the inside of the 1st control board storage part 22 is suppressed from cooling.

Thereby, the bathroom dryer 100 can prevent the erroneous operation of the control circuit mounted on the control board 9 due to dew condensation around the control board 9, and can realize the bathroom dryer 100 with high reliability. In addition, the bathroom dryer 100 does not require potting processing on the control circuit and can ensure the insulation necessary for the control circuit. Therefore, it does not complicate the manufacturing operation and does not increase the weight of the bathroom dryer 100.

Therefore, the bathroom dryer 100 of the first embodiment exhibits the following effect: it is possible to suppress erroneous operation due to condensation without accompanying the complication of the manufacturing operation and the increase in weight.

The configuration shown in the above embodiment is an example of the content of the present invention, which can be combined with other known technologies, and part of the configuration can be omitted or changed without departing from the gist of the present invention.

1: Outer shell 2: Panel 3: Panel substrate 4: Front panel 5: Blow out 7: Sheet metal substrate 8: Resin shell 8a: fixing hole 8b: U-shaped groove 8c: open end face 9: Control board 9a: Mounting surface 10: Resin board 10a: fixed hook 10b: Ribs for gaps 10c: Water intrusion prevention rib 10d: First notch for drainage 10e: side 1 10f: Side 2 10g: side 10h: Outer periphery 10i: Abutment part 11: Wire sleeve 12: Sheet metal cover 12a, 22a: inside 12b: 2nd notch for drainage 12c: inner side 13: main body 14: Stepping motor 16: fan 17: Fan motor 18: Air layer 19: Lid 20: Blower 21: Body part 22: The first control board storage section 23: The second control board storage section 41: Plate 42: window frame 100: bathroom dryer

[Fig. 1] A perspective view showing a bathroom dryer in Embodiment 1 of the present invention. [Fig. 2] A perspective view of the bathroom dryer shown in Fig. 1 viewed from the back side. [Fig. 3] A perspective view showing the internal structure of the main body of the bathroom dryer shown in Fig. 1. [Fig. [Fig. 4] A side view showing the installation state of the bathroom dryer shown in Fig. 1. [Fig. 5] An exploded perspective view of the first control board storage section of the bathroom dryer shown in Fig. 1. [Fig. 6] A perspective view of the resin board of the bathroom dryer shown in Fig. 1 viewed from the first surface side. [Fig. 7] A perspective view of the resin board of the bathroom dryer shown in Fig. 1 viewed from the second surface side. [Fig. 8] is a cross-sectional view of the main part showing the internal structure of the first control board storage portion of the bathroom dryer shown in Fig. 1, and is a cross-sectional view along the line VIII-VIII in Fig. 2.

7: Sheet metal substrate

8: Resin shell

8a: fixing hole

8b: U-shaped groove

9: Control board

9a: Mounting surface

10: Resin board

10a: fixed hook

10d: First notch for drainage

10e: side 1

11: Wire sleeve

12: Sheet metal cover

12b: 2nd notch for drainage

22: The first control board storage section

23: The second control board storage section

Claims (3)

A bathroom dryer, characterized by comprising: The blower, sucks in air from the bathroom; Control the substrate to control the action of the aforementioned blower; A control board accommodating part, which houses the aforementioned control board; A resin plate, which is disposed between the inner surface of the control substrate receiving portion and the substrate surface that is opposite to the substrate surface of the control substrate in the interior of the control substrate receiving portion; The resin plate is provided with ribs that separate the first surface opposite to the inner surface from the inner surface; The ribs are provided along the outer periphery of the first surface, and are in contact with the inner surface of the control board accommodating portion opposite to the side surface of the resin plate in the interior of the control board accommodating portion. The bathroom dryer described in item 1 of the scope of patent application is characterized by: There is an air layer between the inner surface and the resin plate. For example, the bathroom dryer described in item 1 or 2 of the scope of patent application is characterized by: The aforementioned rib has a first notch for drainage at a portion located on the lower side in the vertical direction when the aforementioned bathroom dryer is installed; The control board accommodating portion has a second notch for drainage in a portion corresponding to the first notch for drainage in the installed state of the bathroom dryer.

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