WO2020079849A1

WO2020079849A1 - Bathroom dryer

Info

Publication number: WO2020079849A1
Application number: PCT/JP2018/039090
Authority: WO
Inventors: 宏幸諏訪; 秀肇大和; 寿剛竹居; 一郎本木; 史吉渡邉; 洋司酒井; 康之糸魚川
Original assignee: 三菱電機株式会社
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2020-04-23
Also published as: JP6956898B2; TWI719444B; CN112840171B; JPWO2020079849A1; TW202016471A; CN112840171A

Abstract

This bathroom dryer is provided with: an infrared sensor (51); and a cover (54) having an opening (60) partitioned into a grid by a plurality of partitioning parts (71, 72) in a position of facing a light-receiving part (51a) of the infrared sensor (51). Some of the partitioning parts (72), which of the plurality of partitioning parts (71, 72) are in a position set apart from a center line (Lr) along the light-receiving direction of the light-receiving part (51a), have inclined surfaces (72a) that are inclined toward the light-receiving part (51a).

Description

Bathroom Dryer

The present invention relates to a bathroom dryer having an infrared receiver.

A bathroom dryer is installed by inserting it into the ceiling, wall, or window opening of a bathroom, and performing air conditioning such as ventilation, heating, and drying. Such a bathroom dryer may be provided with an infrared receiving unit that receives infrared rays from a remote controller or an infrared receiving unit that receives infrared rays emitted from the bathroom.

For example, Patent Document 1 has a sensor that detects the temperature in the bathroom by receiving infrared rays emitted from the surface of the object, and controls the bathroom dryer based on the temperature in the bathroom detected by the sensor. Techniques for doing so are disclosed.

JP, 2005-194297, A

In bathroom dryers equipped with an infrared receiver, the infrared receiver may be required to have insulation to prevent people from directly touching the inside of the infrared receiver, depending on the configuration of the bathroom dryer. In this case, it is possible to make the infrared receiving part insulative by providing a grating in the opening formed in the cover of the infrared receiving part for allowing infrared rays to pass through, but the grid provided in the opening creates a blind spot in the receiving range. , Reception performance may be reduced.

The present invention has been made in view of the above, and an object of the present invention is to obtain a bathroom dryer capable of imparting insulation to the infrared receiver while suppressing deterioration of the reception performance of the infrared receiver.

In order to solve the above-mentioned problems and to achieve the object, a bathroom dryer according to the present invention has an opening which is partitioned in a lattice shape by a plurality of partition parts at a position facing an infrared sensor and a light receiving part of the infrared sensor. And a cover having. Of the plurality of partition portions, some of the partition portions located away from the center line in the light receiving direction of the light receiving portion have an inclined surface that is inclined toward the light receiving portion.

The bathroom dryer according to the present invention has the effect of being able to impart insulation to the infrared receiver while suppressing deterioration of the reception performance of the infrared receiver.

First Embodiment An external perspective view of a bathroom dryer according to a first embodiment of the present invention Side view of the bathroom dryer according to the first embodiment Front view of the bathroom dryer according to the first embodiment Sectional view taken along line IV-IV shown in FIG. Front view of the infrared receiver according to the first embodiment The figure which expanded a part of FIG. FIG. 3 is a diagram showing another example of the infrared receiver according to the first embodiment. FIG. 3 is a diagram showing a configuration example of another grating of the infrared receiving unit according to the first embodiment.

A bathroom dryer according to an embodiment of the present invention will be described below in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
1 is an external perspective view of a bathroom dryer according to a first embodiment of the present invention. FIG. 2 is a side view of the bathroom dryer according to the first embodiment. FIG. 3 is a front view of the bathroom dryer according to the first embodiment. The drawings including FIGS. 1 to 3 show a three-dimensional orthogonal coordinate system including the Z axis with the vertical upward direction as the positive direction for easy understanding.

The bathroom dryer 100 shown in FIGS. 1 to 3 is installed on the ceiling of the bathroom and is connected to a duct that connects the space above the ceiling and the outside. 1 to 3, the ceiling and the duct are not shown. The bathroom dryer 100 may be installed on the wall or window of the bathroom.

As shown in FIG. 1, the bathroom dryer 100 according to the first embodiment includes a box-shaped main body 1 that forms an air passage, a panel 2 that is connected to the main body 1, and is disposed on the bathroom side. The filter 3 attached to the panel part 2. The main body 1 is inserted into the ceiling from inside the bathroom through an opening provided in the ceiling, and is placed in the ceiling.

Inside the main body 1, a sirocco fan 11, which is an example of a blower, a damper 12, a heater 13, a fan motor 14, and the like are arranged. In addition, an exhaust port 15 is provided on the side surface of the main body 1 so that the air taken in from the bathroom passes as exhaust air discharged to the outside of the bathroom. The exhaust port 15 is connected to a duct that connects the space above the ceiling and the outside.

The panel part 2 is placed so that it is exposed from the ceiling surface of the bathroom. The panel unit 2 includes a panel base 20 connected to the main body unit 1 and a flat panel 30 connected to the panel base 20. The flat panel 30 covers the lower side of the panel base 20. The surface of the panel portion 2 facing downward is a design surface. As shown in FIGS. 1 and 3, the design surface is provided with an infrared receiver 50 for receiving infrared rays from a remote controller. The infrared receiver 50 will be described later.

An area of the panel base 20 facing the sirocco fan 11 is opened, and the opening is formed as a suction port 21. The air sucked into the main body 1 from the bathroom by the operation of the sirocco fan 11 passes through the suction port 21. In addition, a region facing the heater 13 is opened in the panel base 20, and the opening is formed as a circulation port 22. The air warmed by the heater 13 is blown into the bathroom as circulation air from the circulation port 22 and is supplied into the bathroom.

The operation modes of the bathroom dryer 100 include a ventilation operation mode in which the air in the bathroom is exhausted to the outside, a heating operation mode in which the air in the bathroom is warmed by the heater 13 and returned to the bathroom, and a part of the air in the bathroom. There is a drying operation mode in which ventilation is performed and a part of it is warmed up and returned to the bathroom.

The sirocco fan 11 shown in FIG. 2 is rotated by driving the fan motor 14, and the rotation of the sirocco fan 11 causes the air in the bathroom to be sucked into the main body 1 through the suction port 21. The air sucked into the main body 1 by the sirocco fan 11 is sent to the damper 12. The damper 12 is driven by a damper motor (not shown). The position of the damper 12 is changed by driving the damper motor. When the position of the damper 12 changes, the ratio of air sent to the exhaust port 15 and the circulation port 22 changes.

The position of the damper 12 is changed according to each operation mode of the ventilation operation mode, the heating operation mode, and the drying operation mode, and the air from the fan motor 14 has the exhaust port 15 at the position of the damper 12 suitable for each operation mode. Side and the circulation port 22 side. The air sent to the exhaust port 15 side passes through the exhaust port 15 and is sent to the outside of the room through the duct. The air sent to the circulation port 22 side passes through the heater 13 to be warmed and returned to the bathroom.

The infrared receiving unit 50 will be specifically described below. FIG. 4 is a sectional view taken along line IV-IV shown in FIG. The infrared receiver 50 shown in FIG. 4 receives infrared rays from a remote controller (not shown) that operates the bathroom dryer 100.

As shown in FIG. 4, the infrared receiver 50 according to the first embodiment includes an infrared sensor 51 that receives infrared rays, a substrate 52 on which the infrared sensor 51 is mounted, a substrate 52 fixed, and a Z-axis positive direction. It includes a case 53 that covers from above, a cover 54 that covers the infrared sensor 51 and the substrate 52 from below in the Z-axis negative direction, and a design seal 55 that is attached to the cover 54.

An opening 60 is formed in the cover 54 at a position facing the light receiving portion 51 a of the infrared sensor 51. Through the opening 60 of the cover 54, infrared rays enter the inside of the infrared receiver 50 surrounded by the case 53 and the cover 54. The infrared sensor 51 receives the infrared rays that have entered the infrared receiving section 50 through the opening 60 with the light receiving section 51a and outputs an electric signal according to the infrared rays received by the light receiving section 51a. The surface of the light receiving portion 51a is formed in a spherical shape, but may be formed in a flat shape.

The infrared sensor 51 includes a light receiving section 51a and a circuit for converting the infrared signal received by the light receiving section 51a into an electric signal corresponding to infrared rays. In FIG. 4, the entire cross section of the infrared receiving section 50 is hatched. is doing. Although not shown, the light receiving unit 51a includes a lens and a light receiving element that receives the infrared light focused by the lens.

The infrared sensor 51 and the substrate 52 are covered with a cover 54 to which a design seal 55 is attached and a case 53, so that the infrared receiver 50 does not allow water to enter through the opening 60 formed in the cover 54. It has a waterproof structure. Further, a grid 70 is formed in the opening 60 of the cover 54. The grid 70 forms an insulating structure in the infrared receiver 50 so as to prevent a person or the like from directly contacting the infrared sensor 51 located inside the bathroom dryer 100 from outside. Thereby, for example, an operator or the like can be prevented from coming into contact with the infrared sensor 51 and the substrate 52 through the opening 60.

FIG. 5 is a front view of the infrared receiving unit according to the first embodiment, showing a state where the design seal 55 of the infrared receiving unit 50 is peeled off. Further, FIG. 6 is an enlarged view of a part of FIG. 4.

As shown in FIG. 5, the grating 70 has a first partition 71 that forms a cross around the center line Lr in the light receiving direction of the light receiving unit 51a of the infrared sensor 51, and a first partition 71 located away from the center line Lr. It has two partition parts 72. As shown in FIG. 4, the center line Lr of the light receiving portion 51a in the light receiving direction is the direction in which the light receiving portion 51a faces and the direction passing through the lens center of the light receiving portion 51a. For example, infrared rays that can be received by the light receiving portion 51a. Is the center direction of the range of the arrival direction of.

The first partition 71 has a first extending portion 71a and a second extending portion 71b that intersect each other at right angles. The first extending portion 71a extends in the X-axis direction, and the second extending portion 71b extends in the Y-axis direction. The 2nd partition part 72 is mutually symmetrically arrange | positioned centering | focusing on the 1st extending | stretching part 71a, and extends | stretches in parallel with the 1st extending | stretching part 71a at intervals. The opening 60 is a circular opening, but may be a square opening.

As shown in FIG. 6, the second partition part 72 has a width W2 and a height H2 shorter than the lens diameter Φ1 of the light receiving part 51a, and has an inclined surface 72a inclined toward the light receiving part 51a. ing. Similarly, the edge portion 56 of the cover 54 forming the opening 60 also has an inclined surface 56a inclined toward the light receiving portion 51a.

With this, even when viewed from the maximum reception angle θmax of the infrared sensor 51, a part of the light receiving portion 51a is not hidden by the second partition 72, and the light receiving portion 51a can be seen. Therefore, the infrared sensor 51 can receive infrared rays even when the infrared rays from the remote controller arrive from the maximum reception angle θmax.

In this way, by adjusting the inclined shape of the second partition portion 72, the inclined shape of the edge portion 56, and the width W2 and the height H2 of the second partition portion 72, the receivable range of the infrared receiver 50 can be reduced. Infrared rays from the remote controller can be received from all angles, there is no blind spot in the receivable range, and the remote controller can be operated.

Further, the first partition portion 71 is formed such that the

surfaces

71c and 71d facing the light receiving portion 51a are inclined toward the center of the light receiving portion 51a. As a result, infrared rays arriving from between the first partition 71 and the second partition 72 at an angle with respect to the center line Lr are less likely to be blocked by the first partition 71, and the infrared sensor 51 is more effective. It becomes easy to receive.

In the example shown in FIG. 6 and the like, the edge portion 56 of the cover 54 has the inclined surface 56a, but the second partition 72 can be seen from all angles of the receivable range of the infrared receiver 50. The edge 56 may not have the inclined surface 56a as long as it can receive infrared rays from the remote controller. It is desirable that the blind spot in the receivable range is completely eliminated, but the infrared receiving unit 50 includes the second partition 72 having the slanted shape, the edge 56 having the slanted shape, and the second partition 72 having the slanted shape. The blind spot in the receivable range may be reduced by adjusting the width W2 and the height H2.

Further, as shown in FIG. 6, the height H1 of the first partition 71 is higher than the height H2 of the second partition 72. In this way, by making the height H1 of the first partition portion 71 higher than the height H2 of the second partition portion 72, the strength in the height direction of the first partition portion 71 can be increased. . Further, the width W1 of the first partition 71 is shorter than the width W2 of the second partition 72, and does not substantially affect the receivable range of the infrared receiver 50.

The first partition 71 is formed in a cross shape, and the second partition 72 is connected to the second extending portion 71b so as to traverse the second extending portion 71b of the first partition 71. Accordingly, even in the central portion of the second partition portion 72, the second partition portion 72 is supported by the edge portion 56 via the second extending portion 71b, as compared with the case where the first partition portion 71 is not provided. Hard to break.

Specifically, when the second extending portion 71b of the first partition portion 71 is not provided, one end portion and the other end portion of the second partition portion 72 are connected to the edge portion 56, and the second partition portion 72 is formed. When a load is applied to the second partition 72, the moment load originating from the connecting portion between the second partition 72 and the edge 56 is large. On the other hand, the infrared receiver 50 has a first partition 71. Therefore, the load of the moment starting from the connecting portion between the second partition portion 72 and the edge portion 56 and the connecting portion between the second partition portion 72 and the second extending portion 71b of the first partition portion 71. However, it is reduced compared with the case where the second extending portion 71b is not provided. This makes it difficult for the second partition 72 to be damaged.

The partition interval D1 shown in FIG. 6, which is the interval between the first extending part 71a of the first partition part 71 and the second partition part 72, is 1 to 4 mm. When the partition space D1 is too narrow, the second partition 72 becomes thin when the inclined surface 72a is formed on the second partition 72, and it becomes difficult to secure the strength of the second partition 72. In addition, it is necessary to ensure the insulating property with the design seal 55 removed. If the partition space D1 is too wide, a child can touch the infrared sensor 51 or the substrate 52 with a finger or a pen, but if the partition space D1 is 4 mm or less, it becomes difficult to touch the infrared sensor 51 or the substrate 52. Insulation can be secured. The distance D2 between the second partition 72 and the edge 56 is also 1 to 4 mm.

The lattice 70 is not limited to the above example. FIG. 7 is a diagram showing another example of the infrared receiving unit according to the first embodiment, and is a sectional view taken along line IV-IV shown in FIG. In the example shown in FIG. 7, the surface 72b of the second partition 72 facing the infrared sensor 51 is an inclined surface having the same inclination angle as the inclined surface 72a. That is, the surface 72b of the second partition portion 72 is an inclined surface that is inclined toward the light receiving portion 51a. As a result, the portion of the infrared rays from the remote controller that is blocked by the second partition 72 is reduced, and the infrared sensor 51 can more easily receive the infrared rays from the remote controller.

Also, in the above-described example, the number of the second partition parts 72 was two, but the number of the second partition parts 72 is not limited to two. FIG. 8 is a diagram showing a configuration example of another grating of the infrared receiver according to the first embodiment, and is a front view of the infrared receiver 50. The lattice 70 shown in FIG. 8 is composed of one first partition 71 and four second partition 72.

The second partition 72 shown in FIG. 8 is formed similarly to the second partition 72 shown in FIG. 6 or the second partition 72 shown in FIG. 7. Note that the lattice 70 shown in FIG. 8 may be configured such that the slope angle of the inclined surface 72a becomes smaller as the second partition portion 72 farther from the first extending portion 71a of the first partition portion 71. In this case, the inclined surface 72a of each second partition 72 can be configured to incline toward the center of the light receiving unit 51a, for example. Note that the grid 70 shown in FIG. 8 has a partitioning interval D1 that is the interval between the first extending portion 71a and the second partitioning portion 72 of the first partitioning portion 71, similar to the grid 70 shown in FIG. It is 1 to 4 mm. The distance D2 between the second partition 72 and the edge 56 and the distance D3 between the adjacent second partitions 72 are also 1 to 4 mm, like the partition D1.

The infrared receiving unit 50 has been described as receiving an infrared signal from the remote controller, but the infrared receiving unit 50 may receive infrared light other than infrared light from the remote controller. For example, the infrared receiver 50 may be configured to include an infrared sensor that detects the temperature inside the bathroom by receiving infrared rays emitted from the surface of the object.

Further, in the above-described example, the bathroom dryer 100 has the ventilation operation mode, the heating operation mode, and the drying operation mode as the operation modes, but the ventilation dryer mode and the heating operation mode may not be provided. Good.

As described above, the bathroom dryer 100 according to the first embodiment has the first partition part 71 and the plurality of second partition parts 72 at the position facing the infrared sensor 51 and the light receiving part 51a of the infrared sensor 51. And a cover 54 having openings 60 partitioned by a lattice. The plurality of second partition portions 72 are located at positions apart from the center line Lr of the light receiving portion 51a in the light receiving direction, and have an inclined surface 72a that is inclined toward the light receiving portion 51a. As a result, it is possible to reduce or eliminate a blind spot in the reception range of the infrared receiver 50, and it is possible to provide the infrared receiver 50 with insulation while suppressing deterioration of the reception performance of the infrared receiver 50. Therefore, for example, when the power supply voltage of the bathroom dryer 100 is applied to the circuit of the infrared receiver 50, or the voltage applied to the circuit of the infrared receiver 50 is a low voltage, the voltage applied to the infrared receiver 50 is determined. Insulation can be ensured when the transformer is a transformer equivalent to basic insulation. Further, by using the insulating structure as the lattice 70, it is not necessary to provide a cover that transmits infrared rays as a separate component, and the cost can be suppressed.

The width W2 and the height H2 of the second partition 72 are shorter than the lens diameter Φ1 of the light receiving section 51a. As a result, it is possible to further reduce or eliminate the blind spot in the reception range of the infrared receiver 50.

The first partition 71 is formed in a cross shape around the center line Lr of the light receiving section 51a in the light receiving direction, and has a height higher than that of the second partition 72. The second partition part 72 extends parallel to the first extending part 71a which is one of the first partitioning parts 71, and the second extending part which is the other extending part of the first partitioning part 71. The midway portion is connected to the extending portion 71b. As a result, when a load is applied to the second partition 72, the load applied to the connecting portion of the second partition 72 with other elements due to the moment is lightened, and the strength of the lattice 70 can be improved. Further, damage to the grating 70 is suppressed even when the grating 70 is loaded, such as when the infrared receiver 50 is cleaned, when the grating 70 is strongly pressed, or when an object hits the grating 70. Therefore, it becomes possible to secure an insulating structure.

Further, the

surfaces

71c and 71d of the first partition 71 facing the light receiving portion 51a are formed to be inclined toward the center of the light receiving portion 51a. As a result, the infrared receiving section 50 can be made to have insulating properties while further suppressing the deterioration of the receiving performance of the infrared receiving section 50.

The distance between the adjacent partition parts of the first partition part 71 and the plurality of second partition parts 72 is within the range of 1 mm to 4 mm. Thereby, for example, even when the design sheet such as the design seal 55 is peeled off from the case 53, not only a human finger but also an object having a thickness of about a pen does not enter the gap of the lattice 70, and the insulation can be secured. .

The configurations shown in the above embodiments show an example of the content of the present invention, and can be combined with other known techniques, and the configurations of the configurations are possible without departing from the gist of the present invention. It is also possible to omit or change parts.

1 body part, 2 panel part, 3 filter, 11 sirocco fan, 12 damper, 13 heater, 14 fan motor, 15 exhaust port, 20 panel base, 21,40 suction port, 22 circulation port, 30 flat panel, 50 infrared reception Part, 51 infrared sensor, 51a light receiving part, 52 substrate, 53 case, 54 cover, 55 design seal, 56 edge part, 56a, 72a inclined surface, 60 opening, 70 grid, 71 first partition part, 71a first part Extension part, 71b Second extension part, 71c, 71d, 72b surface, 72 second partition part, 100 bathroom dryer, Lr center line.

Claims

An infrared sensor,
At a position facing the light receiving portion of the infrared sensor, a cover having openings partitioned in a lattice by a plurality of partition parts,
The bathroom dryer, wherein a part of the plurality of partition parts located at a position apart from the center line in the light receiving direction of the light receiving part has an inclined surface inclined toward the light receiving part.
The bathroom dryer according to claim 1, wherein a width and a height of the part of the partition part are shorter than a lens diameter of the light receiving part.
The plurality of partition parts,
A first partition formed in a cross shape around a center line in the light receiving direction of the light receiving section;
A plurality of second partition parts, which are part of the partition parts, extending in parallel with one of the first partition parts and having a middle part connected to the other extending part of the first partition parts. And a partition part of
The height of the said 1st partition part is higher than the height of the said 2nd partition part. The bathroom dryer of Claim 1 or 2 characterized by the above-mentioned.
The bathroom dryer according to claim 3, wherein a surface of the first partition section facing the light receiving section is formed to be inclined toward a center of the light receiving section.
The bathroom dryer according to any one of claims 1 to 4, wherein an interval between adjacent partition parts of the plurality of partition parts is within a range of 1 mm to 4 mm.