TW202016478A - Bathroom dryer - Google Patents

Abstract

This bathroom dryer comprises a blower that takes in air from a bathroom, a control board (9) that controls operation of the blower, a first control board housing unit (22) that houses the control board (9), and a resin plate (10) that is provided between the board face of the control board (9) and the inner face of the first control board housing unit (22) facing the board face inside the control board housing unit (22). The bathroom dryer can suppress malfunctions caused by condensation without increasing the complexity of manufacture or increasing the weight.

Description

Bathroom dryer

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

There are known bathroom dryers of a window installation type installed in a window of a bathroom, and a bathroom dryer of a wall installation type installed on a wall surface of the bathroom, which can circulate air sucked from the bathroom to the bathroom and suck in the bathroom The air is discharged outside the bathroom. The type of bathroom dryer installed in the bathroom is: a panel with an air suction port and an air blowing port is exposed in the bathroom, and the body part is arranged outside the bathroom. The main body part includes a fan for blowing air and a fan motor for driving the fan, a fan case forming an air path of the fan, a heater for heating air blown by the fan, and a blower for blowing out the heated air of the heater Parts such as the outlet, the air lock for switching the operation mode, the motor driven by the air lock, and the control circuit that controls the operation of the blower and bathroom dryer are housed in the body case.

The control circuit is housed inside the body part arranged outside the bathroom in a state of being housed in a dedicated housing in order to avoid the malfunction caused by water and moisture.

The heating device for a bathroom disclosed in Patent Document 1 is provided with a control device in a portion adjacent to a side surface of the main body in the interior of the main body. Advanced technical literature Patent Literature:

Patent Document 1: Japanese Patent Laid-Open No. 2007-40634

Problems to be solved by invention

When installed in the bathroom dryer of the bathroom, when the ambient temperature inside and outside the bathroom differs, or when the temperature of the outside air is low and the housing that houses the control circuit becomes cold, the housing that houses the control circuit Condensation occurs inside. In addition, there is a concern that water may invade the inside of the case due to condensation on the outside of the case. In order to ensure the necessary insulation in the control circuit and prevent the malfunction of the control circuit due to water, the surface of the control circuit is generally potted to insulate the insulating material such as resin.

However, when the control circuit is subjected to potting, 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 complicating manufacturing operations and increasing weight.

In view of this, the present invention aims to obtain a bathroom dryer that can suppress erroneous operation caused by 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 to suck air from the bathroom; a control board to control the operation of the blower; a control board storage section to house the control board; a resin board provided in the control board to house In the interior of the portion, between the inner surface of the control board storage portion and the board surface opposed to the board surface of the control board. The resin plate includes a rib that separates the first surface facing the inner surface from the inner surface. The rib is provided along the outer periphery of the first surface, and is in contact with the inner side surface of the control board housing portion opposed to the side surface of the resin plate in the inside of the control board housing portion. Invention effect

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

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

Embodiment 1. FIG. 1 is a perspective view showing a bathroom dryer 100 according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of the bathroom dryer 100 shown in FIG. 1 viewed from the back side, and is a perspective view showing a state where the outer casing 1 is removed. FIG. 3 is a perspective view showing the internal structure of the body portion 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 figure is the lower side in the vertical direction in the installed state of the bathroom dryer 100.

The bathroom dryer 100 of the first embodiment is a window-mounted bathroom dryer that can be installed in 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 attached to the wall surface of the bathroom. The bathroom dryer 100 can perform a heating operation that blows warm air to the bathroom, a ventilation operation that discharges air from the bathroom to the outside, and simultaneously performs a drying operation that blows warm air to the bathroom and exhausts air in the bathroom.

The bathroom dryer 100 of the first embodiment includes a panel 2 exposed in the bathroom and constituting a design surface, and a rectangular-shaped main body portion 21 covered with a box-shaped metal shell. The panel 2 includes a flat panel substrate 3 installed in a window in the bathroom, and a flat front panel 4 disposed on the inner side of the bathroom than 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 rectangular shape. The air outlet 5 provided in the front panel 4 constitutes a circulation air outlet for blowing warm air.

The front panel 4 is arranged to be separated from the panel substrate 3. Turn the panel handle to release the engaging portion (not shown) of the front panel 4 and the panel substrate 3, whereby the front panel 4 can be opened without using tools. Between the panel substrate 3 and the front panel 4, there is provided a slit for sucking air in the bathroom. The bathroom dryer 100 sucks air in the bathroom from three directions of the upper surface side of the panel 2 and the left and right side surfaces of the panel 2.

As shown in FIGS. 2 and 3, the main body portion 21 has a main body body 13 and a first control board storage portion 22 covered by an outer casing 1 that constitutes the outer outline 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 the part of the shaft of the fan motor 17 is shown due to the description of the relationship of directions. In addition, inside the main body 21, in addition to the blower 20, a fan case that forms the air path of the air flow generated by the fan 16, a heater that heats the air blown by the fan, and the heater are heated The air outlet of the air blown, 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 body body 13, an air path formed by the body body 13 and the fan case and allowing the wind blown by the fan 16 to travel toward the outlet 5 is formed inside the body case 13 and the fan case An air path is formed and allows the air blown by the fan 16 to travel 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 stored in the first control board storage 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 accommodating portion 22 is fixed to the side portion of the main body 13 inside the outer casing 1.

FIG. 4 is a side view showing the installed 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 an opening of the same size as the outer casing 1 is fixed to the window frame 42 of the window, and the body portion 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 portion 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 first surface 10e side. 7 is a perspective view of the resin plate 10 of the bathroom dryer 100 shown in FIG. 1 viewed from the second surface 10f side. 8 is a cross-sectional view of main parts showing the internal structure of the first control board storage portion 22 of the bathroom dryer 100 shown in FIG. 1, which is a cross-sectional view taken along 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 installed state of the bathroom dryer 100. In FIG. 6, the right side in the figure is the vertical lower side in the installed 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 installed state of the bathroom dryer 100.

The control board 9 is stored in the first control board storage unit 22 in a state where it is stored in the second control board storage unit 23. The first control board accommodating portion 22 is formed by a box-shaped plate metal cover 12 having an opening on one surface and screwed to the plate 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 storage portion 23 is formed by fitting and fixing the resin plate 10 to a box-shaped resin case 8 having an opening on one side, and is a resin control board storage portion for storing 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. Fixing hooks 10a for fixing the resin case 8 are provided on the resin plate 10 at two opposite positions. The fixing holes 8a for hooking the fixing hooks 10a of the resin board 10 are provided at two positions on the resin case 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 storage portion 23 which is a control board storage portion made of resin, and the mounting surface 9 a which is a board surface of the control board 9 on which a plurality of electronic components are mounted is stored in a state opposed to the resin plate 10. in. The resin plate 10 is an inner surface 12 a of the sheet metal cover 12 and the control substrate 9 provided inside the first control substrate storage portion 22, which is a metal control substrate storage portion, opposite the mounting surface 9 a of the control substrate 9 Between the mounting surface 9a. The inner surface 12a of the sheet metal cover 12 opposed to the mounting surface 9a of the control board 9 is the inner surface 22a of the first control board storage portion 22 opposed to the mounting surface 9a of the control board 9. In addition, the inner surface 12a of the sheet metal cover 12 is the inner surface of the surface of the first control board accommodating portion 22 on the side not adjacent to the main body 13 and is the first control of the control board 9 opposite the board surface Among the surfaces of the board storage portion 22, the inner surface of the surface exposed from the outside.

Inside the first control board accommodating portion 22, the resin board 10 provided on the inner surface 12a side of the plate cover 12 in the control board 9 can function as a gap between the inner surface 12a of the plate cover 12 and the control board 9 Thermal layer. That is, in the bathroom dryer 100, by providing the resin plate 10, it is suppressed that the periphery of the control board 9 in the first control board storage portion 22 becomes cold. Therefore, by installing the resin plate 10 in the bathroom dryer 100, when there is a difference in the ambient temperature between the inside and the outside of the bathroom, or the temperature of the outside air decreases due to rainfall, the first control board storage portion 22 becomes cold, etc. Therefore, it is possible to suppress the occurrence of condensation on the periphery of the control board 9 in the first control board housing 22.

The first surface 10e of the resin plate 10 is the surface of the resin plate 10 on the side opposite to the inner surface 22a of the first control board storage portion 22. The second surface 10f of the resin plate 10 is a surface facing the side opposite to the side where the first surface 10e faces 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 first surface 12a of the sheet metal cover 12 and the resin plate 10. The first ribs separated by the surface 10e. When the resin plate 10 is stored in the first control board storage portion 22, the slit rib 10b contacts the inner surface 12a of the sheet metal cover 12, whereby the inner surface 12a of the sheet metal cover 12 and the first surface of the resin plate 10 An air layer 18 is formed between one surface 10e.

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 functions as a heat insulating layer between the inner surface 12a 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 12a of the sheet metal cover 12 and the control substrate 9. Therefore, when the bathroom dryer 100 is provided with an air layer 18 when the ambient temperature inside and outside of the bathroom is different, or the temperature of the outside air decreases due to rainfall, 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 first control board housing 22.

In addition, as shown in FIG. 6, a first notch 10d for drainage is provided in a portion of the slit rib 10b that is located on the lower side in the vertical direction when the bathroom dryer 100 is installed. In addition, a second notch for drainage is provided on the sheet metal cover 12 at a position corresponding to the first notch for draining 10d of the slit rib 10b in the portion located on the lower side in the vertical direction when the bathroom dryer 100 is installed 12b.

Moreover, by providing the first notch 10d for drainage in the rib 10b for the slit and the second notch 12b for drainage 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 are The air layer 18 therebetween 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 surfaces of the resin plate 10 and the sheet metal cover 12 on the air layer 18 side are attached The dew condensation water may move to the lower side in the vertical direction by gravity and drain through the first notch 10d for drainage and the second notch 12b for drainage. As a result, the bathroom dryer 100 can eliminate the influence of moisture on the control board 9 caused by condensation between the inner surface 12a of the sheet metal cover 12 and the first surface 10e of the resin plate 10.

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

As shown in FIG. 8, the slit rib 10 b is in contact with the inner side surface 12 c of the sheet metal cover 12 opposed to the side surface 10 g of the resin plate 10 inside the first control board storage portion 22. In addition, the side surface 10g of the resin plate 10 is in contact with the inner side surface 12c of the opposed sheet metal cover 12. In this way, in the bathroom dryer 100, the contact area of the resin plate 10 and the sheet metal cover 12 is increased, and it is possible to prevent moisture from being controlled 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 The substrate 9 enters.

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

As shown in FIGS. 7 and 8, the second surface 10 f of the resin plate 10 is provided along the outer periphery of the second surface 10 f as a second rib for preventing water from intruding into the second control board storage portion 23. Rib portion 10c. The opening end surface 8c that is the end surface of 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 of the opening side of the resin case 8 and the outer peripheral edge portion of the second surface 10f which is the resin plate 10 are closer to the outer peripheral edge portion of the outer peripheral side than the water intrusion preventing rib portion 10c 10h. The water intrusion prevention rib 10c is in contact with the side surface of the resin plate 10 on the outer peripheral side and the water intrusion prevention rib 10c.

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

As shown in FIG. 5, in the resin case 8, a 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 A U-shaped groove 8b having a U-shape. A resin-made wire sleeve 11 through which a wire (not shown) extending from the control board 9 passes is fitted in the U-shaped groove 8b. As shown in FIG. 7, on the resin plate 10, the contact portion 10 i to which the end face of the wire sleeve 11 abuts is provided at a portion below the vertical direction in the installed state of the bathroom dryer 100. Moreover, 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 wire extending from the control board 9 is fixed by passing through the wire sleeve 11, and extends downward from the second control board storage portion 23.

Thereby, the lead wire extending from the control board 9 is extended from the second control board storage portion 23 to prevent the intrusion of water inside the second control board storage portion 23 and the wire can be led to the second control The outside of the board 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 wires extending from the control board 9 with the wire sleeve 11 to make the wires and The externally insulated barrier structure also prevents water from intruding into the second control board storage portion 23. In addition, the communication between the inside and the outside of the second control board storage portion 23 is blocked and sealed.

As described above, in the bathroom dryer 100 of the first embodiment, the resin plate 10 provided between the inner surface 12a of the sheet metal cover 12 and the control board 9 functions as the space between the inner surface 12a of the sheet metal cover 12 and the control board 9 Insulation. 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. As a result, in the bathroom dryer 100, the surroundings of the control board 9 in the first control board storage portion 22 are prevented from becoming cold.

As a result, the bathroom dryer 100 can prevent malfunction of the control circuit mounted on the control board 9 due to the occurrence of condensation on the periphery of the control board 9, and a highly reliable bathroom dryer 100 can be realized. In addition, the bathroom dryer 100 can ensure the insulation necessary for the control circuit without applying potting to the control circuit. Therefore, the manufacturing operation is not complicated, and the weight of the bathroom dryer 100 is not increased.

Therefore, the bathroom dryer 100 of the first embodiment exhibits the effect that 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, and it can be combined with other well-known technologies, and a 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 case 8a: Fixing hole 8b: U-shaped groove 8c: Open end face 9: control board 9a: mounting surface 10: resin board 10a: fixed hook 10b: Rib for gap 10c: Water intrusion prevention rib 10d: 1st notch for drainage 10e: Face 1 10f: Face 2 10g: side 10h: outer periphery 10i: contact part 11: Wire sleeve 12: Sheet metal cover 12a, 22a: inside 12b: 2nd notch for drainage 12c: inner side 13: Body body 14: Stepper motor 16: fan 17: fan motor 18: Air layer 19: Cover 20: blower 21: Main body 22: First control board storage section 23: Second control board storage section 41: Plate 42: Window frame 100: bathroom dryer

[Fig. 1] A perspective view showing a bathroom dryer according to 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 body part of the bathroom dryer shown in Fig. 1. [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 portion of the bathroom dryer shown in Fig. 1. [Fig. 6] A perspective view of the resin plate of the bathroom dryer shown in Fig. 1 viewed from the first surface side. [Fig. 7] A perspective view of the resin plate of the bathroom dryer shown in Fig. 1 viewed from the second surface side. 8 is a cross-sectional view of a main part showing the internal structure of the first control board storage portion of the bathroom dryer shown in FIG. 1, which is a cross-sectional view taken along line VIII-VIII in FIG. 2.

7: Sheet metal substrate

8: resin case

8a: Fixing hole

8b: U-shaped groove

9: control board

10: resin board

10a: fixed hook

10d: 1st notch for drainage

10e: Face 1

11: Wire sleeve

12: Sheet metal cover

12b: 2nd notch for drainage

22: First control board storage section

23: Second control board storage section

Claims (3)

A bathroom dryer is characterized by including: Blower to draw air from the bathroom; Control the substrate to control the action of the aforementioned blower; A control board storage part, which stores the control board; A resin board provided between the inner surface of the control board storage portion and the board surface opposite to the board surface of the control board in the control board storage portion; The resin plate includes a rib that separates the first surface opposed to the inner surface from the inner surface; The rib portion is provided along the outer periphery of the first surface, and is in contact with the inner side surface of the control board housing portion opposed to the side surface of the resin plate in the inside of the control board housing portion. The bathroom dryer as described in item 1 of the patent application scope is characterized by: There is an air layer between the inner surface and the resin plate. The bathroom dryer as described in item 1 or 2 of the patent application is characterized by: The rib portion has a first notch for drainage in a portion located on the lower side in the vertical direction when the bathroom dryer is installed; The control board storage 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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