JP5760595B2 - Wall-mounted remote control - Google Patents

Description

  The present invention relates to a wall-mounted remote controller that is used by being attached to a wall surface in a bathroom or other places and used for remote operation of desired devices such as a water heater.

  For example, a remote controller for a water heater that is installed on the wall surface of a bathroom includes a housing that houses a control circuit and other electrical components therein, and a decorative cover that covers the front and peripheral sides of the housing. It is customary to be configured in combination. As such a remote controller, there is a remote controller in which a speaker and a microphone are accommodated in a housing and an interphone function is provided. In such a remote control, it is necessary to prevent acoustic coupling between the speaker and the microphone. As a means for this, a microphone hole (a hole for transmitting sound from the outside of the remote control to the microphone) is provided on the bottom surface of the housing. There is a means for opening. In this case, it is necessary to provide the decorative cover with a hole for preventing the microphone hole from being covered with the decorative cover. Conventionally, when such a hole is provided in the decorative cover, the actual situation is that it is a simple circular opening, for example, similar to the microphone hole provided in the housing.

  However, in the above-described configuration, when a relatively large amount of water is applied to the remote control and this water travels to the hole of the decorative cover, a water film is likely to be generated in this portion. If a water film is generated, the sound input to the microphone is hindered.

  In Patent Document 1, as means for suppressing the generation of a water film in a microphone hole provided in the bottom surface of the casing of the electronic device, means such as providing an inclined surface on the bottom portion of the casing. Is described. However, with such means alone, there is still room for improvement in efficiently and rationally preventing the generation of a water film. Further, the means described in Patent Document 1 is intended for a structure that does not have a decorative cover, and is difficult to apply as it is to a remote controller configured by combining a housing and a decorative cover.

Utility Model Registration No. 2,538,037

  The present invention has been conceived under the circumstances as described above, and is configured by combining a housing and a decorative cover, and provided with a microphone hole in the bottom surface of the housing. In the wall-mounted remote controller having the above-described structure, it is an object to appropriately prevent or suppress the microphone hole from being blocked by a water film with a simple configuration.

  In order to solve the above problems, the present invention takes the following technical means.

The wall-mounted remote controller provided by the present invention has a built-in microphone, has a microphone hole in the bottom surface, and is attached so that the back surface faces the wall surface to be attached. And a lower piece that covers the bottom of the casing, and the lower piece is provided with a hole for avoiding the microphone hole from being covered by the lower piece. A wall-mounted remote control including a cover, and the hole for avoiding the microphone hole from being covered extends rearward from a lower region of the microphone hole, It is a notch hole that is partially opened at the edge on the rear side.

  According to such a configuration, even if water is applied to the remote control and a relatively large amount of water enters the cutout hole provided in the lower piece of the decorative cover, a water film is hardly generated in this portion. Unlike the simple circular hole, for example, the notch hole is not in a form in which the inner wall surface is closed with a small area, and the shape itself is a shape that hardly generates a water film. Further, according to the above configuration, even if water enters the lower region of the microphone hole in the cutout hole, the water is advanced backward so that a large amount of water does not stay in the lower region of the microphone hole. By doing so, it becomes possible to make it difficult to generate a water film. For this reason, according to the present invention, it is difficult to cause a phenomenon in which the microphone hole is blocked by the water film, and it is possible to appropriately prevent or suppress the occurrence of trouble in the voice input to the microphone.

  In the present invention, it is preferable that a portion of the inner wall surface of the cutout hole that faces a lower region of the microphone hole is provided with an inclined surface portion that extends downward.

  According to such a configuration, the water that has entered the region below the microphone hole in the cutout hole is likely to flow down along the inclined surface portion. As a result, a water film is less likely to be generated in the lower region of the microphone hole, which is more preferable for preventing a problem that the microphone hole is blocked by the water film.

In the present invention, preferably, it further includes a convex portion that protrudes downward from the bottom surface portion of the housing and is located behind the lower region of the microphone hole in the cutout hole, When the caulking material is filled between the lower piece portion of the decorative cover and the wall surface, the convex portion prevents the caulking material from flowing into the cutout hole from behind. ing.

  According to such a configuration, when the wall-mounted remote controller according to the present invention is attached to a desired wall surface, even if a caulking process is performed to eliminate a gap between the remote controller and the wall surface, the caulking material is not convex. It is possible to prevent it from being blocked by the shape portion and flowing into the cutout hole. Therefore, it is possible to prevent the problem that the microphone hole is blocked by the caulking material.

  In this invention, Preferably, the lower surface of the said convex-shaped part is a planar shape of substantially the same height as the lower surface of the said decorative cover.

  According to such a configuration, when the masking tape is applied to the lower part of the decorative cover to perform the caulking process when the wall-mounted remote controller of the present invention is attached, the masking tape is also appropriately applied to the lower surface of the convex portion. It is possible to prevent a large gap from being formed at the location where the cutout hole is formed.

  In the present invention, it is preferable that a water-drawing gap between the inner wall surface of the rear portion of the notch hole and the convex portion can draw water that has progressed to the lower region of the microphone hole. Is formed.

  According to such a configuration, the water that has progressed to the lower region of the microphone hole in the cutout hole is caused to enter the water drawing gap so that a large amount of water does not stay in the lower region of the microphone hole. It becomes possible to. For this reason, a water film is less likely to occur in the region below the microphone hole.

In the present invention, preferably, the front part of the convex part forms a gap for drawing water between the inner wall surface of the notch hole, and the rear part of the convex part is more than the front part. Is also formed wide.

  According to such a configuration, the front part of the convex part is effectively used to form a water drawing gap, while the rear part of the convex part is wider than the front part of the convex part. Therefore, when the caulking process is performed, it is preferable to surely prevent the caulking material from flowing into the cutout hole from behind.

  In the present invention, preferably, a front surface of the convex portion that faces a lower region of the microphone hole is inclined so as to be located rearward as it proceeds downward.

  According to such a structure, when water advances to the lower region of the microphone hole, the water easily flows down along the inclined front surface of the convex portion. For this reason, the effect which a water film becomes difficult to produce is acquired.

  In the present invention, it is preferable that an opening peripheral portion of the microphone hole in the bottom surface portion of the housing is an inclined surface whose height decreases as it goes rearward.

  According to such a configuration, water easily proceeds from the periphery of the opening of the microphone hole to the rear thereof, and a large amount of water does not easily stay in the lower region of the microphone hole. Less likely to occur.

  In the present invention, it is preferable that one or a plurality of cutout portions communicating with a lower region of the microphone hole is provided on the periphery of the cutout hole.

  According to such a structure, the effect | action which a part of the water which advanced to the downward area | region of the hole for microphones approachs into the said notch part arises. As a result, an effect of suppressing the generation of a water film can be obtained by preventing a large amount of water from staying in the region below the microphone hole.

  In the present invention, it is preferable that a downward projecting piece for guiding the water that has entered the notch hole to flow downward is provided on the lower piece of the decorative cover or the bottom surface of the casing. Are provided only on one side edge of both side edges in the left-right width direction.

  According to such a configuration, even if a water film is generated in the cutout hole, the water acts in a state where a force to flow downward through the downward projecting piece is biased. Due to the generation of such an unbalanced force, the generation of a water film is suppressed.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

It is a perspective view which shows an example of the wall surface installation type remote control which concerns on this invention. (A) is the perspective view which looked at the wall surface installation type remote control shown in FIG. 1 from diagonally downward, (b) is the principal part bottom view of the IIb arrow of (a). It is a disassembled perspective view of the wall surface installation type remote control shown in FIG. (A) is IV-IV sectional drawing of FIG. 1, (b) is the principal part enlarged view. FIG. 5 is an exploded cross-sectional view of a main part of the structure shown in FIG. It is VI-VI principal part sectional drawing of FIG.4 (b). It is a principal part bottom view which shows the other example of this invention. It is a principal part bottom view which shows the other example of this invention. It is a principal part bottom view which shows the other example of this invention. It is principal part sectional drawing which shows the other example of this invention. (A) is principal part sectional drawing which shows the other example of this invention, (b) is a principal part perspective view of the decorative cover used for the structure of (a). It is principal part sectional drawing which shows the other example of this invention.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

1 to 6 show an example of a wall-mounted remote controller to which the present invention is applied. In the following description, the front-rear direction Fr of the wall-mounted remote controller will be described as “front” and the opposite direction as “rear”.
A wall-mounted remote controller R (hereinafter abbreviated as “remote controller R”) of this embodiment is a remote controller for a water heater, and is used by being attached to a wall surface 9 of a bathroom as shown in FIG. As shown well in FIG. 3, the remote control R includes a housing 1 and a decorative cover 2, and a microphone hole 12 and a convex portion 4 are formed on the bottom surface portion 11 of the housing 1. Is provided. A cutout hole 22 is provided in a lower piece portion 21a, which will be described later, of the decorative cover 2.

  The housing 1 has a rectangular shape in front view and a substantially rectangular parallelepiped shape. As shown in FIG. 4, the housing 1 is configured by combining a front member 10A and a rear member 10B made of resin, and the front surface portion of the housing 1 is configured using a liquid crystal display or the like. The display unit 30 and a plurality of operation switches 31 are provided. Inside the housing 1 is accommodated a circuit board 32 on which various electric / electronic components constituting a control circuit and the like are mounted. Examples of the electrical components housed in the housing 1 include a microphone MC and a speaker SP (see FIG. 1). The remote controller R can communicate with another remote controller for a water heater installed in a kitchen or the like. It has a possible intercom function. As shown in FIG. 1, the speaker SP is provided so as to face the front of the housing 1, whereas the microphone MC is disposed away from the speaker SP from the viewpoint of preventing acoustic coupling with the speaker SP. And is installed downward.

  As shown in FIGS. 4 to 6, the microphone MC is supported by the holder 51 and fixed in the housing 1. The microphone hole 12 is a hole for transmitting sound from the outside of the remote control R to the microphone MC, and is provided so that the lower end thereof opens to the bottom surface portion 11 of the housing 1. In the present embodiment, a water-repellent sheet 50 is affixed to the bottom surface portion 11 of the housing 1 so that entry of water into the microphone hole 12 can be prevented as much as possible. The water repellent sheet 50 has air permeability and does not hinder voice input to the microphone MC.

  As clearly shown in FIG. 3, the decorative cover 2 includes a front plate portion 20 having an opening window 20 a for exposing the display portion 30 and the operation switch 31, and a rear edge from the outer peripheral edge of the front plate portion 20. And a rectangular frame-shaped auxiliary portion 21 protruding toward the front. The decorative cover 2 is attached to the housing 1 so that the auxiliary portion 21 is fitted to the housing 1, and the peripheral side surface of the housing 1 is covered by the auxiliary portion 21. The auxiliary portion 21 has a lower piece portion 21 a for covering the bottom surface portion 11 of the housing 1, and a cutout hole 22 is provided in the lower piece portion 21 a. This notch hole 22 is provided so that the lower part of the microphone hole 12 is not blocked by the lower piece portion 21a. The notch hole 22 is a U-shaped notch opening, extends rearward from a position corresponding to the lower region of the microphone hole 12, and is partially opened at the rear edge 21a 'of the lower piece 21a. It is the structure to do.

On the bottom surface portion 11 of the housing 1, a convex portion 4 protruding downward is formed integrally with the housing 1. The convex portion 4 is fitted into the notch hole 22 and is located behind the microphone hole 12. As will be described later, this serves to prevent the caulking material from entering the notch hole 22 when the caulking process is performed, and to appropriately apply the masking tape. The lower surface of the convex portion 4 has a relatively large area, and has a planar shape with substantially the same height as the lower surface of the lower piece portion 21a (see FIG. 4).

  As shown in FIG. 2, the convex portion 4 has a shape in which the widths La and Lb of the front portion 40a and the rear portion 40b are different, and La <Lb. Between the side surface of the front portion 40a and the inner wall surface of the cutout hole 22, a gap 61 for water pull-in having a width L1 is formed. On the other hand, between the side surface of the rear portion 40 b and the inner wall surface of the cutout hole 22, a water pull-in gap 62 having a width L <b> 2 narrower than the gap 61 is formed. The gaps 61 and 62 communicate with each other, and the rear end portion 62a of the gap 62 is open.

  As shown in FIG. 4, the inner wall surface of the notch hole 22 is provided with an inclined surface portion 22 a having the notch hole 22 extending downward. As shown in FIG. 2 (b), the inclined surface portion 22 a is preferably formed over the entire length of the inner wall surface of the cutout hole 22 that is located on the front side of the convex portion 4. As clearly shown in FIG. 4, the front surface 41 of the convex portion 4 is inclined so as to be located closer to the rear as it proceeds downward.

  A seal packing 52 and a protrusion 13 are provided on the back surface of the housing 1. The seal packing 52 is for waterproofing the electrical wiring 35 and its peripheral portion when the housing 1 is attached to the wall surface 9. The protruding portion 13 is a portion for stabilizing the mounting state of the housing 1 by being brought into contact with the wall surface 9. Attachment to the wall surface 9 of the housing | casing 1 is performed using a screw | thread (not shown) etc., for example.

  Next, the operation of the remote controller R will be described.

  When a relatively large amount of water is poured on the remote control R in a state where the remote control R is attached to the wall surface 9, this water travels along the front and side portions of the decorative cover 2 of the remote control R and the lower piece of the decorative cover 2. It flows to the lower surface of 21a. A part of such water enters the cutout hole 22. However, unlike the simple circular hole, the notch hole 22 is not in a form in which the inner wall surface is closed with a narrow area, and the shape itself hardly generates a water film. In the present embodiment, part of the water that has entered the portion closer to the front of the notch hole 22 (the region below the microphone hole 12) is sequentially drawn into the water-drawing gaps 61 and 62. Accordingly, it is possible to prevent a large amount of water from remaining in the region below the microphone hole 12 in the cutout hole 22. If the rear end 62a of the gap 62 is in an open state, it is possible to increase the amount of water drawn as described above.

  On the other hand, since the notch hole 22 has a downwardly expanding shape having the inclined surface portion 22a, the water that has entered the notch hole 22 also has an effect of easily flowing down through the inclined surface portion 22a. Further, since the front surface 41 of the convex portion 4 is also inclined in the same manner as the inclined surface portion 22a, the front surface 41 of the convex portion 4 also exerts an effect of facilitating water to flow downward. For this reason, in this remote control R, even if a relatively large amount of water enters the cutout hole 22, a water film is hardly generated in this portion, and the sound to the microphone MC is caused by the water film. It is possible to appropriately prevent or suppress the occurrence of defects in input.

  The remote controller R can appropriately protect the electrical wiring 35 and its peripheral part due to the presence of the seal packing 52, and is essentially a gap 90 between the remote controller R and the wall surface 9 (see FIG. 4). There is no need to apply a coking process to fill However, when the remote controller R is actually installed at a desired location, a coking process may be performed due to various circumstances. Even in such a case, the remote controller R can cope with it appropriately as follows.

First, as shown in FIG. 2, the convex portion 4 is provided so as to close the rear side of the notch hole 22, and the width L <b> 2 of the water drawing-in gap 62 is smaller than the width L <b> 1 of the gap 61. . For this reason,
The convex portion 4 appropriately suppresses the caulking material from entering the inside of the notch hole 22 from behind. As a result, it is possible to prevent the problem that the lower end opening of the microphone hole 12 and the vicinity thereof are covered with the caulking material and the gap 61 is closed.

  When performing the caulking process, a masking tape (not shown) is applied around the decorative cover 2, but the convex portion 4 also serves to eliminate the step in the notch hole 22. That is, if the masking tape is pasted on the lower surface of the lower piece portion 21a in a state where the convex portion 4 is not provided, the maskin tape floats in the portion of the notch hole 22, but according to the present embodiment, Can be prevented. As described above, since the lower surface of the convex portion 4 is substantially the same height as the lower surface of the lower piece portion 21a and has a large area, it is easier to apply the masking tape more appropriately.

  7 to 12 show other embodiments of the present invention. In these drawings, the same or similar elements as those of the previous embodiment are denoted by the same reference numerals as those of the previous embodiment.

  In the embodiment shown in FIG. 7, the rear portion 40 b of the convex portion 4 and the inner wall surface of the cutout hole 22 are in contact with each other or considerably close to each other, and no gap is formed between them or there is almost no gap. . According to such a configuration, the caulking material is more reliably prevented from flowing into the cutout hole 22 from the rear side. It should be noted that since water-removing gaps 61 are formed on both sides of the front portion 40a of the convex portion 4, a large amount of water stays in the region directly below the microphone hole 12 using the gaps 61. The effect | action which suppresses is acquired.

  In the embodiment shown in FIG. 8, the convex portion 4 has a simple shape that is rectangular in a bottom view, and the distance L3 from the front end portion of the notch hole 22 to the convex portion 4 is increased. On both sides of the convex portion 4, a gap 63 for drawing water is formed. According to such a configuration, an effect of making it difficult to form a water film in the region below the microphone hole 12 due to the large distance L3 described above can be obtained. Of course, the effect of making it difficult to generate water film by drawing water into the gap 63 is also obtained. Furthermore, when the caulking process is performed, the convex portion 4 can suppress the caulking material from flowing into the cutout hole 22 from behind. As can be understood from the present embodiment, the convex portion can have various configurations.

  In the embodiment shown in FIG. 9, one or a plurality of relatively narrow notches 23 are formed on the peripheral edge of the notch hole 22. According to such a configuration, the water that has entered the cutout hole 22 has an action of being drawn into the cutout portion 23, thereby making it difficult to form a water film. A means for providing a notch for drawing water at the peripheral edge of the notch hole can be employed regardless of the presence or absence of the convex portion 4.

  In the embodiment shown in FIG. 10, the peripheral portion of the microphone hole 12 in the bottom surface portion 11 of the housing 1 is formed as an inclined surface 11 a inclined backward and downward by an appropriate angle α. According to such a configuration, the water that has entered the notch hole 22 easily travels backward along the inclined surface 11 a and does not easily stay in the region below the microphone hole 12. For this reason, the effect which makes it difficult to produce a water film is also obtained. The means for providing the inclined surface 11a can be employed in a superimposed manner with other means employed in the present invention.

  In the embodiment shown in FIG. 11, the decorative cover 2 is provided with a downward projecting piece 25. However, the projecting pieces 25 are not provided on both side edges in the width direction of the cutout hole 22, but are provided only on one side edge of them, and along the one side edge, the front-rear direction of the remote controller It is provided in the form extended to.

  According to such a configuration, even if the water W that has progressed into the cutout hole 22 is going to be in the form of a water film, the portion of the water W that is in contact with the protruding piece 25 extends along the protruding piece 25. As a result, a force F that tries to flow downward is generated and is not generated in other parts, so that the balance of the force in each part of the water is lost. As a result, a water film is hardly generated, and even if a water film is generated, the water film is destroyed early.

  In the embodiment shown in FIG. 12, a downward projecting piece 15 is provided on the bottom surface portion 11 of the housing 1. Similarly to the protruding piece 25, the protruding piece 15 is also provided along only one side edge of both sides in the width direction of the cutout hole 22 and extends in the front-rear direction of the remote controller. Even with such a configuration, an effect of making it difficult to generate a water film by the same action as the embodiment shown in FIG. 11 can be obtained. The means as shown in FIG. 11 and FIG. 12 can also be employed in a superimposed manner in combination with other means employed in the present invention.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the wall-mounted remote controller according to the present invention can be modified in various ways within the intended scope of the present invention.

  Although not described in the above embodiment, in the present invention, a hole for avoiding the microphone hole from being covered by the lower piece of the decorative cover is a notch hole having a predetermined shape intended by the present invention. Only the means for forming may be used, and other means as described in the above-described embodiment (for example, the means for providing the convex portion 4 or the means for providing the notch portion 23) may not be provided. Is possible. This is because even with such a configuration, a water film suppressing action peculiar to the notch hole can be obtained.

  The casing only needs to be in a form that can accommodate a desired electrical component therein, and can have a form different from the above-described casing. The decorative cover is attached to the casing and is intended to decorate or protect the casing by covering at least a part of the casing. However, in the present invention, it is required to have a lower piece portion that covers at least the bottom surface portion of the housing. The wall-mounted remote control according to the present invention is suitable for installation in a bathroom where there is a high possibility of being splashed with water, but can also be used as a remote control installed on a wall other than the bathroom, such as a kitchen or a washroom. .

R remote control (wall-mounted remote control)
MC Microphone 1 Housing 2 Cosmetic cover 4 Convex part 9 Wall surface (to be attached)
11 Bottom (of the housing)
12 Microphone hole 15 Protruding piece 21a Lower piece (of decorative cover)
21a 'edge (of lower piece)
22 Notch hole 22a Inclined surface part (on the inner wall surface of the notch hole)
23 Notch 25 Protruding piece 40a Front part (of convex part)
40b Rear (convex)
41 Front (of convex part)
61-63 gap (for water pull-in)

Claims (10)

A housing with a built-in microphone, a microphone hole in the bottom surface, and a back surface facing the wall surface to be mounted;
A decorative cover having a lower piece that covers the bottom surface of the housing, and the lower piece is provided with a hole for avoiding the microphone hole from being covered by the lower piece; ,
A wall-mounted remote control equipped with
The hole for avoiding the microphone hole from being covered is a cutout hole that extends rearward from the lower region of the microphone hole and partially opens at the rear edge of the lower piece. A wall-mounted remote control characterized by The wall-mounted remote controller according to claim 1,
A wall surface-mounted remote control in which an inclined surface portion is formed in a portion facing an area below the microphone hole in an inner wall surface of the cutout hole so that this portion extends downward. A wall-mounted remote control according to claim 1 or 2,
A convex portion that protrudes downward from the bottom surface portion of the housing and is located behind the lower region of the microphone hole in the cutout hole;
When caulking material is filled between the lower piece of the decorative cover and the wall surface, the caulking material can be prevented from flowing into the cutout hole from behind by the convex portion. A wall-mounted remote control. A wall-mounted remote control according to claim 3,
The wall-mounted remote controller, wherein the lower surface of the convex portion is a flat surface having substantially the same height as the lower surface of the decorative cover. A wall-mounted remote control according to claim 3 or 4,
A wall surface is formed between the inner wall surface of the rear portion of the notch hole and the convex portion so that a water-drawing gap is formed in which water that has progressed to a lower region of the microphone hole can be drawn inside. Stationary remote control. The wall-mounted remote controller according to claim 5,
The front part of the convex part forms a gap for drawing water with the inner wall surface of the notch hole,
The rear portion of the convex portion is a wall-mounted remote controller that is formed wider than the front portion. A wall-mounted remote control according to any one of claims 3 to 6,
A wall-mounted remote controller in which the front surface facing the lower region of the microphone hole in the convex portion is inclined so as to be located rearward as it proceeds downward. A wall-mounted remote controller according to any one of claims 1 to 7,
Of the bottom surface of the housing, the peripheral portion of the opening of the microphone hole is a wall-mounted remote controller that has an inclined surface that decreases in height toward the rear. A wall-mounted remote controller according to any one of claims 1 to 8,
A wall-mounted remote controller in which one or a plurality of cutout portions communicating with a lower region of the microphone hole are provided at the periphery of the cutout hole. A wall-mounted remote controller according to any one of claims 1 to 9,
On the bottom piece of the decorative cover or the bottom surface of the housing, downward projecting pieces that guide the water that has entered the cutout hole to flow downward are provided on both side edges of the cutout hole. A wall-mounted remote control provided only on one of the side edges.

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