JP2022050003A - Water section unit - Google Patents

Abstract

To provide a water section unit that allows a water temperature to be recognized without touching hot water, and is easy to use.SOLUTION: In a water section unit, a light emitting device for emitting light toward a bowl has a first mode for emitting light in a cold color when a temperature of hot water measured by a temperature measurement device is a first temperature threshold value or less, and emitting light in a warm color when it exceeds the first temperature threshold value, and a second mode for emitting light in a white-based color regardless of the temperature of hot water measured by the temperature measurement device. A control device causes the light emitting device to be set in the first mode when a first sensor part is in a non-detection state, and causes the light emitting device to be set in the second mode when the first sensor part is in a detection state.SELECTED DRAWING: Figure 5

Description

Aspects of the present invention generally relate to a water supply unit.

There is a wash basin where the wash basin emits different colors depending on the temperature of the hot water discharged from the water discharge device. Such a wash basin can be easily visually recognized by light emission even in a dark environment, and the temperature of hot water discharged from the water discharge device can be intuitively recognized (Patent Document 1).

Japanese Unexamined Patent Publication No. 2007-125194

However, for example, when the user uses the water discharge device for washing, the wash bowl emits light in a color corresponding to the water discharge temperature, so that the surrounding area at hand is illuminated by the emitted color, which makes the user feel uncomfortable. And may cause discomfort.

Aspects of the present invention have been made based on the recognition of such a problem, and an object of the present invention is to provide a water-related unit that is easy to use while being able to recognize the water temperature without touching the hot water.

The first invention comprises a bowl, a spout for discharging hot water to the bowl, a flow path for hot water to flow toward the spout, a temperature measuring device for measuring the temperature of hot water flowing through the flow path, and the above-mentioned. A water discharge device having an on-off valve for opening and closing a flow path, a first sensor unit for detecting an object to be detected existing between the water discharge port and the bowl, and a light emitting device that emits light toward the bowl. A control device for controlling the light emitting device is provided, and the light emitting device emits a cold color when the temperature of hot water measured by the temperature measuring device is equal to or lower than the first temperature threshold, and the first light emitting device emits light. It has a first mode that emits warm colors when it exceeds one temperature threshold, and a second mode that emits white light regardless of the temperature of hot water measured by the temperature measuring device. The device sets the light emitting device to the first mode when the first sensor unit is in the non-detection state, and sets the light emitting device to the second mode when the first sensor unit is in the detection state. It is a water supply unit characterized by being set to.

According to this water supply unit, by checking the emission color of cold or warm colors emitted toward the bowl, the temperature of the hot water can be intuitively recognized before touching the hot water discharged from the water discharge device. can do. Further, the light emitting device switches the light emitting color from the cold color system or the warm color system to white when the first sensor unit is in the detection state. Therefore, for example, since the hand (object to be detected) that is in contact with hot water is not illuminated by cold or warm colors, it is possible to suppress the feeling of discomfort or discomfort. Further, for example, when the temperature of the hot water discharged from the water discharge device is adjusted, it is possible to insert the hand into the hot water after confirming the emission color. Therefore, it is possible to make the user aware of the temperature of the hot water and to provide an easy-to-use water supply unit.

According to the second aspect of the present invention, in the first invention, the control device has a predetermined time when the first sensor unit is in the non-detection state when the light emitting device is set to the second mode. It is a water supply unit characterized by switching the light emitting device from the second mode to the first mode after a lapse of time.

According to this water supply unit, for example, when the user washes his / her face, the hands are put in and out of the lower part of the water discharge device in a short time. In such a case, it is possible to suppress the frequent switching of the emission color of the light emitting device from white to cold or warm colors, and to suppress the discomfort caused by flicker.

A third aspect of the invention is the second invention, wherein the water discharge device further includes a manual operation unit capable of manually operating the opening and closing of the on-off valve, and the control device is the temperature measuring device during the predetermined time. It is a water supply unit characterized by switching from the second mode to the first mode when the temperature of hot water measured by the above changes over the first temperature threshold value.

According to this water supply unit, the water temperature cannot be recognized because the emission color is white for a predetermined time after the first sensor unit is in the non-detection state in the second mode. In such a case, by switching to the first mode when a change of "hot water to water" or "water to hot water" is recognized, the change of hot water can be notified to the user, and the convenience is improved. In addition, for example, when the temperature of the hot water is adjusted after touching the hot water to be spouted, it is recognized that the temperature of the hot water to be spouted has changed by checking the emission color from white to cold or warm. can do.

A fourth aspect of the invention is the second aspect of the invention, wherein the water discharge device further includes a manual operation unit capable of manually opening and closing the on-off valve, and the light emitting device is a cold-colored device that emits light in the first mode. The hue and the warm color hue are changed according to the temperature of the hot water, respectively, and the control device has the first temperature of the hot water and the first temperature measured by the temperature measuring device during the predetermined time. When the amount of temperature increase with the second temperature measured after the above exceeds the first temperature gradient, or when the amount of temperature decrease between the first temperature and the second temperature exceeds the second temperature gradient, the first It is a water supply unit characterized by switching the two modes to the first mode.

According to this water supply unit, for example, when the on-off valve is manually opened and the user interrupts the use of water discharge while the on-off valve is temporarily opened during washing or washing a cup or the like. In addition, by confirming the change from white to cold or warm color during the interruption, the user can be made to recognize that the temperature of the hot water is significantly changed due to the change of the hot water supply temperature or the like.

A fifth aspect of the invention is, in any one of the first to fourth aspects, the light emitting device exceeds a second temperature threshold value in which the temperature of hot water measured by the temperature measuring device exceeds the first temperature threshold value. In this case, the control device further has a warning mode that emits light in a mode different from that of the first mode and the second mode, and the control device has the temperature of hot water measured by the temperature measuring device as the second temperature threshold value. This is a water supply unit characterized in that the light emitting device is set to the alert mode when the temperature exceeds the above.

According to this water supply unit, when the hot water is hot, the light emission is different from the light emission in the first mode and the second mode, so that the user is alerted before touching the spout. be able to.

A sixth aspect of the invention further comprises, in any one of the first to fifth inventions, a second sensor unit for detecting an approach to the bowl or a human body located in front of the bowl, wherein the control device is the same. It is a water supply unit characterized by stopping light emission from the light emitting device when the second sensor unit is in a non-detection state.

According to this water supply unit, when the second sensor unit does not detect the user in front of the bowl, the light emission from the light emitting device is stopped (turned off), so that power saving can be achieved. can.

According to the aspect of the present invention, it is possible to recognize the water temperature without touching the hot water, and to provide an easy-to-use water supply unit.

It is a perspective view which shows the water surrounding unit which concerns on 1st Embodiment. It is a block diagram which shows the waterway system and the electric system of a water supply unit. It is a perspective view which looked at the bowl from diagonally above when it was set to the 1st mode. It is sectional drawing which shows the detection area of the 1st sensor part, and the light emitting state in 1st mode. It is a perspective view which looked at the bowl from diagonally above when it was set to the 2nd mode. It is sectional drawing which shows the light emitting state in a 2nd mode. It is a flow chart which shows the mode setting control of a 1st mode and a 2nd mode. It is a flow chart which shows the mode setting control of the water around unit which concerns on 2nd Embodiment. It is a flow chart which shows the mode setting control of the water around unit which concerns on 3rd Embodiment. It is a block diagram which shows the waterway system and the electric system of the water supply unit which concerns on 4th Embodiment. It is a flow chart which shows the mode setting control of the 1st mode, the 2nd mode, and the alert mode. It is a block diagram which shows the water channel system and the electric system of the water supply unit which concerns on 5th Embodiment. It is a flow chart which shows the mode setting control of a 1st mode and a 2nd mode.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view showing a water supply unit according to the first embodiment.
FIG. 2 is a block diagram showing a water channel system and an electrical system of the water supply unit.
FIG. 3 is a perspective view of the bowl viewed from diagonally above when the first mode is set.
FIG. 4 is a cross-sectional view showing a detection region of the first sensor unit and a light emitting state in the first mode.
FIG. 5 is a perspective view of the bowl viewed from diagonally above when the second mode is set.
FIG. 6 is a cross-sectional view showing a light emitting state in the second mode.

As shown in FIGS. 1 and 2, the water supply unit 10 includes a bowl 20, a water discharge device 30, a light emitting device 40, and a control device 50. The water supply unit 10 is a bathroom vanity installed in a washroom such as a dressing room or a washroom. The water supply unit 10 may be a kitchen installed in the kitchen. In the present embodiment, the direction in which the user who uses the water supply unit 10 is located will be described as "forward". The "rear", "upper", "lower", "right side", and "left side" are the respective directions based on the state of facing forward.

The cabinet 12 is installed, for example, on the floor surface. The cabinet 12 is provided below the bowl 20 and supports the bowl 20. The cabinet 12 may be referred to as, for example, a lower cabinet, a floor cabinet, or the like.

The cabinet 12 has, for example, a main body 12a and two drawers 12b and 12c. Each drawer 12b and 12c can store an article inside. The number of drawers is not limited to two, and may be one or three or more. Further, the cabinet 12 is not limited to the drawer type cabinet, and may be a door type cabinet. The cabinet 12 may be directly attached to a wall surface such as a washroom. The cabinet 12 may be provided below the bowl 20 and may have any configuration that allows the articles to be stored inside.

The mirror cabinet 14 is installed above the bowl 20. The mirror cabinet 14 has a cabinet body 14a and three doors 14b to 14d. The cabinet body 14a has a substantially rectangular parallelepiped opening box shape with an opening at the front, and can store articles inside. A mirror is provided on the front surface of each door 14b to 14d. The number of doors and mirrors provided in the mirror cabinet 14 is not limited to three, and may be one or two, or four or more.

The bowl 20 is formed in a concave shape that is recessed downward and is supported by the cabinet 12. As shown in FIGS. 3 and 5, the bowl 20 has a drain port 20a. The drain port 20a is provided at the bottom of the bowl 20. The drain port 20a is connected to a drain pipe (not shown), and the hot water W discharged into the bowl 20 flows into the drain pipe. A back guard portion 22 extending upward is provided at the rear end of the bowl 20. The back guard portion 22 is provided as needed and can be omitted.

The water discharge device 30 is provided on a wall surface extending above the bowl 20, for example. The water discharge device 30 includes a water discharge unit 32 having a water discharge port 32a, a flow path 34 through which the hot water W flows toward the water discharge port 32a, a temperature measuring device 35 for measuring the temperature of the hot water W flowing through the flow path 34, and a flow path. It has an on-off valve 36 that opens and closes 34, and a first sensor unit 38 that detects an object to be detected existing between the spout 32a and the bowl 20. Further, the water discharge device 30 includes a manual operation unit 37 capable of manually opening and closing the on-off valve 36.

The water discharge unit 32 discharges hot water W from the water discharge port 32a toward the bowl 20. The water spouting portion 32 is a so-called spout. Further, the water discharge device 30 has a shelf portion 33 on the upper surface on which articles such as toiletries and eyeglasses can be placed. The water spouting portion 32 is provided on the lower surface of the shelf portion 33 so that the hot water W is discharged from, for example, the spouting port 32a toward the bowl 20. The water spouting portion 32 may not be provided on the lower surface of the shelf portion 33 as long as the hot water W is spouted from the spouting port 32a toward the bowl 20. The water discharge device 30 does not necessarily have to have the shelf portion 33.

The flow path 34 is a portion through which hot water W flows toward the spout port 32a. The flow path 34 has a metal or resin pipeline arranged inside a cabinet 12 or behind a wall surface such as a washroom, and is connected to a water supply source 100 and a hot water supply source 102. The water supply source 100 is, for example, a water supply. The hot water supply source 102 is, for example, a water heater that heats water. The hot water supply source 102 can adjust the temperature of the hot water W from, for example, a remote controller (not shown).

As shown in FIG. 2, the flow path 34 includes a first flow path 34a extending from the water supply source 100 to the on-off valve 36, a second flow path 34b extending from the hot water supply source 102 to the on-off valve 36, and a water discharge port from the on-off valve 36. It has a third flow path 34c extending to 32a. The downstream side of the third flow path 34c is inside the water discharge portion 32 and is connected to the water discharge port 32a.

Water at room temperature supplied from the water supply flows through the first flow path 34a. Hot water heated by the hot water supply source 102 flows through the second flow path 34b. In the third flow path 34c, water flowing in the first flow path 34a, hot water flowing in the second flow path 34b, or water flowing in the first flow path 34a and flowing in the second flow path 34b. Hot water mixed with hot water is distributed.

The temperature measuring device 35 is, for example, a thermistor, and measures the temperature of the hot water W flowing through the flow path 34. Specifically, the temperature measuring device 35 is provided in the third flow path 34c. That is, the temperature measuring device 35 is provided in the flow path 34 on the downstream side of the on-off valve 36. The temperature measuring device 35 may be provided on the shelf portion 33 or may be provided on the water discharge portion 32 as long as it is on the downstream side of the on-off valve 36. The temperature measuring device 35 is connected to the control device 50 described later, and transmits the measured temperature signal to the control device 50.

The on-off valve 36 is provided in the flow path 34. Specifically, the on-off valve 36 is provided between the first flow path 34a and the second flow path 34b and the third flow path 34c. That is, the on-off valve 36 is a mixing valve that mixes the water flowing through the first flow path 34a and the hot water flowing through the second flow path 34b and supplies the water to the third flow path 34c.

The on-off valve 36 is connected to the manual operation unit 37 and is opened and closed by the operation of the manual operation unit 37. Further, the on-off valve 36 is connected to the first sensor unit 38 via the control device 50, and is opened / closed by detecting an object to be detected (for example, a hand) by the first sensor unit 38. As a result, the on-off valve 36 can flow and stop the hot water W from the water supply source 100 and the hot water supply source 102 toward the water discharge port 32a.

The manual operation unit 37 is provided on, for example, the shelf unit 33. The manual operation unit 37 is connected to the on-off valve 36 and can manually open and close the on-off valve 36. By operating the manual operation unit 37, the user can adjust the temperature and the amount of water discharged from the hot water W discharged from the water discharge port 32a.

For example, by operating the manual operation unit 37 in one direction, the space between the first flow path 34a and the third flow path 34c is opened, and the space between the second flow path 34b and the third flow path 34c is closed. Can be in a state. In this case, the flow rate of water flowing from the first flow path 34a to the third flow path 34c can be adjusted by the operation amount of the manual operation unit 37. As a result, the water (normal temperature water) supplied from the water supply source 100 is discharged from the spout 32a toward the bowl 20.

On the other hand, by operating the manual operation unit 37 in the other direction, the space between the first flow path 34a and the second flow path 34b and the third flow path 34c can be opened. In this case, the flow rate of water flowing from the first flow path 34a to the third flow path 34c and the flow rate of hot water flowing from the second flow path 34b to the third flow path 34c can be adjusted by the operation amount of the manual operation unit 37. .. As a result, the hot water W, which is a mixture of the water supplied from the water supply source 100 and the hot water supplied from the hot water supply source 102, is discharged from the spout 32a toward the bowl 20.

The first sensor unit 38 is located around the water discharge unit 32 and is provided on the shelf unit 33. The first sensor unit 38 is, for example, a microwave sensor, an infrared sensor, an electrostatic sensor, or the like, and detects an object H existing between the spout 32a and the bowl 20. The first sensor unit 38 is not provided on the shelf unit 33, but may be provided at another location such as the water discharge unit 32 or the back guard unit 22. That is, the first sensor unit 38 can be arbitrarily installed as long as it can detect the object to be detected H between the spout 32a and the bowl 20. The object to be detected H is, for example, a user's hand, a cup, a plate, or the like. In this example, the object to be detected H is in the hands of the user.

As shown in FIGS. 4 and 6, the first sensor unit 38 is provided, for example, in front of the spout 32a. The detection region S of the first sensor unit 38 is located in front of the spout 32a and is between the shelf unit 33 and the bowl 20. As a result, as shown in FIG. 6, the first sensor unit 38 detects the object to be detected H inserted between the spout 32a and the bowl 20. The first sensor unit 38 is connected to the control device 50 and transmits a detection signal for detecting the object to be detected H to the control device 50.

The light emitting device 40 is located on the front side of the first sensor unit 38 and is provided on the shelf unit 33. The light emitting device 40 has a light source such as an LED or a light bulb, and can emit a plurality of hues toward the bowl 20. As shown in FIGS. 3 and 4, the light emitting device 40 emits cold-colored or warm-colored light L1 toward the bowl 20. Further, as shown in FIGS. 5 and 6, the light emitting device 40 emits white light L2 toward the bowl 20.

The light emitting device 40 may be provided around the first sensor unit 38 such as the rear side, the left side, and the right side instead of the front side of the first sensor unit 38. Further, the light emitting device 40 is not provided in the shelf portion 33, but may be provided in another place such as a water discharge portion 32 or a back guard portion 22. That is, the light emitting device 40 can be arbitrarily installed as long as it can emit light toward the bowl 20.

The light emitting device 40 has a first mode in which cold or warm colors (light L1) are emitted toward the bowl 20, and a second mode in which light is emitted in white (light L2). The cool color system is, for example, a blue system (blue-green, blue, bluish-purple, etc.), and is a color that makes one feel visually cold. On the other hand, the warm color system is a red system (red, daidai, yellow), and is a color that visually feels warmth. The white color is an achromatic color. The light emitting device 40 is connected to the control device 50 and is set to the first mode or the second mode by a command signal from the control device 50.

The first mode is executed when the first sensor unit 38 does not detect the object to be detected H. That is, the first mode is executed when the object to be detected H does not exist between the spout 32a and the bowl 20. In the first mode, when the temperature of the hot water W in the third flow path 34c measured by the temperature measuring device 35 is equal to or less than the first temperature threshold value Wx, a cold color is emitted and the first temperature threshold value Wx is set. If it exceeds the temperature, it emits warm colors. The first temperature threshold value Wx is a boundary of the temperature at which a person feels cold or warm when he / she touches the hot water W, and is set by, for example, an experiment or a simulation. As an example, the first temperature threshold value Wx is set to an arbitrary value (for example, 25 degrees) between, for example, 20 degrees and 30 degrees.

As a result, the light emitting device 40 illuminates the bowl 20 with the light L1 in a cool color system or a warm color system. By confirming the light L1 illuminated by the bowl 20, the user can sensuously recognize the temperature of the hot water W discharged from the spout 32a.

The second mode is executed when the first sensor unit 38 detects the object to be detected H. That is, the second mode is executed when the object H to be detected is present between the spout 32a and the bowl 20. In the second mode, a white color is emitted regardless of the temperature of the hot water W in the third flow path 34c measured by the temperature measuring device 35.

As a result, the object H to be detected is illuminated with white color without being illuminated with chromatic color by the light L2, so that discomfort can be suppressed. For example, when the hands (object H to be detected) are washed, it may be unpleasant if the hands are illuminated with cool or warm colors. However, in the second mode, since the hands are illuminated in white when the hands are washed, it is possible to suppress the feeling of discomfort and improve the usability.

The control device 50 is provided, for example, inside the shelf portion 33, inside the water discharge portion 32, or inside the cabinet 12. The control device 50 is connected to the temperature measuring device 35, the first sensor unit 38, and the light emitting device 40, and controls the light emitting device 40 based on the signals transmitted from the temperature measuring device 35 and the first sensor unit 38. .. Further, the control device 50 controls the opening / closing of the on-off valve 36 based on the detection signal transmitted from the first sensor unit 38. The opening / closing control of the on-off valve 36 may be performed by a control device different from the control device 50.

The control device 50 has a storage unit 52. The storage unit 52 stores a control program for mode setting control that determines whether to set the first temperature threshold value Wx and the light emitting device 40 to either the first mode or the second mode. The control device 50 sets the light emitting device 40 to the first mode when the first sensor unit 38 is in the non-detection state, and sets the light emitting device 40 to the second mode when the first sensor unit 38 is in the detection state. To be set to.

Further, the control device 50 sets the light emitting device 40 from the second mode after a predetermined time elapses when the first sensor unit 38 is in the non-detection state when the light emitting device 40 is set to the second mode. Switch to the first mode. This predetermined time is the waiting time when switching from the second mode to the first mode. The predetermined time is set to an arbitrary time of, for example, about 30 seconds to 1 minute, and is stored in advance in the storage unit 52.

This can prevent frequent switching between the second mode and the first mode. For example, when the user washes his / her face, the hands are put in and out below the spout 32a in a short period of time. In such a case, it is possible to suppress the frequent switching of the light emitting color of the light emitting device 40 from the white color to the cold color system or the warm color system, and to suppress the discomfort caused by the flicker.

The water supply unit 10 according to the first embodiment has the above-mentioned configuration, and then the operation of the water supply unit 10 will be described.

FIG. 7 is a flow chart showing mode setting control between the first mode and the second mode. The mode setting control shown in FIG. 7 is stored in the storage unit 52 of the control device 50. This mode setting control is repeatedly executed at a predetermined cycle. Further, each step is indicated by "S", and for example, "step 1" is indicated by "S1".

First, in S1, the water temperature Wt is acquired. That is, the control device 50 acquires the temperature of the hot water W of the third flow path 34c measured by the temperature measuring device 35, and proceeds to S2.

In S2, it is determined whether or not the first sensor unit 38 has detected the object to be detected H. That is, the control device 50 is in a detection state in which the object to be detected H is in the detection area S between the water discharge port 32a and the bowl 20 based on the detection signal transmitted from the first sensor unit 38, or is discharged. It is determined whether or not there is no object H to be detected in the detection area S between the water port 32a and the bowl 20 and the detection state is not detected.

Then, if "YES" in S2, that is, if it is determined that the first sensor unit 38 has detected the object to be detected H, the process proceeds to S6 and the light emitting device 40 is set to the second mode. On the other hand, if it is determined in S2 that "NO", that is, the first sensor unit 38 has not detected the object to be detected H, the process proceeds to S3 and the light emitting device 40 is set to the first mode.

In S3, it is determined whether or not the water temperature Wt is equal to or less than the first temperature threshold value Wx (Wt ≦ Wx). That is, the control device 50 determines whether the hot water W in the third flow path 34c is “water” or “hot water”. For example, when the first temperature threshold value Wx is 25 degrees, it is determined whether the hot water W in the third flow path 34c is 25 degrees or less or exceeds 25 degrees. Then, when it is determined in S3 that "YES", that is, the water temperature Wt is equal to or less than the first temperature threshold value Wx, the process proceeds to S4. On the other hand, if it is determined in S3 that "NO", that is, the water temperature Wt exceeds the first temperature threshold value Wx, the process proceeds to S5.

In S4, cool-colored light is emitted. That is, the control device 50 causes the light emitting device 40 to emit light of a cool color system (for example, blue) to end the light emission. Thereby, the user can recognize that the hot water W discharged from the spout 32a is cold (for example, 25 degrees or less) without touching the hot water W.

In S5, warm-colored light is emitted. That is, the control device 50 causes the light emitting device 40 to emit light of a warm color system (for example, red) to end the light emission. Thereby, the user can recognize that the hot water W discharged from the spout 32a is warm (for example, higher than 25 degrees) without touching the hot water W.

As shown in FIGS. 3 and 4, the user can sensuously recognize the temperature of the hot water W by the color emitted from the light emitting device 40 without touching the hot water W discharged from the spout 32a. .. As a result, it is possible to suppress the discomfort caused by touching the hot water W at a temperature not intended by the user.

As an example, when the previous user has discharged the high-temperature hot water W from the spout 32a, the high-temperature hot water W will remain in the third flow path 34c. In such a case, the user immediately after confirming the red color emitted from the light emitting device 40 can recognize that the high temperature hot water W is discharged from the water discharge port 32a. Further, by operating the manual operation unit 37 before causing the first sensor unit 38 to detect the object to be detected, the hot water W is discharged from the water discharge port 32a, and then the change in the emission color emitted from the light emitting device 40. By confirming, it is possible to recognize whether the water currently being discharged is water or hot water without touching the hot water W.

In S6, white light is emitted. That is, the control device 50 causes the light emitting device 40 to execute white light emission regardless of the water temperature Wt. As a result, the object to be detected H is illuminated in white, so that it becomes easy to understand, for example, how much dirt is removed from the object to be detected H. In addition, it is possible to suppress the discomfort caused by the hand being illuminated by the coloring of cold or warm colors.

In the next S7, it is determined whether or not the first sensor unit 38 has detected the object to be detected H. That is, in the control device 50, based on the detection signal transmitted from the first sensor unit 38, has the detected object H inserted in the detection region S between the spout 32a and the bowl 20 deviated from the detection region S? Monitor whether or not. Then, when "YES" in S7, that is, when it is determined that the first sensor unit 38 has detected the object to be detected H, the object to be detected H in the detection area S is monitored. On the other hand, if it is determined in S7 that "NO", that is, the first sensor unit 38 has not detected the object to be detected H, the process proceeds to S8.

In S8, it is determined whether or not the predetermined time has elapsed. That is, the control device 50 determines whether or not a predetermined time has elapsed since the object to be detected H is no longer detected in S7. This predetermined time is a time for determining that the user has finished using the water discharge device 30, and is set to an arbitrary time of, for example, about 30 seconds to 1 minute. The light emitting device 40 continues to emit white light until the predetermined time ends. The predetermined time is stored in advance in the storage unit 52 of the control device 50, and can be set by an experiment or a simulation in consideration of the place where the water supply unit is installed, the intended use, and the like.

Then, when it is determined in S8 that "YES", that is, the predetermined time has elapsed, it is regarded as an end. On the other hand, if it is determined in S8 that "NO", that is, the predetermined time has not elapsed, the process returns to S7, the detection state of the object H to be detected by the first sensor unit 38 is monitored, and the time is counted. .. If the first sensor unit 38 detects the object to be detected H again within this predetermined time, the counted time is reset. The control in S8 is provided as needed. That is, if the first sensor unit 38 does not detect the object to be detected H in S7, the end may be performed without waiting for the elapse of a predetermined time.

By providing the control of S8, for example, when the object to be detected H is taken in and out below the spout 32a in a short time, the emission color of the light emitting device 40 is frequently switched from white to cold or warm. It is possible to suppress the change and to suppress the discomfort caused by the flicker.

Thus, according to the water supply unit 10 according to the first embodiment, the bowl 20, the spout 32a for discharging the hot water W to the bowl 20, the flow path 34 for the hot water W to flow toward the spout 32a, and the flow path 34. A temperature measuring device 35 that measures the temperature of the hot water W flowing through the bowl, an on-off valve 36 that opens and closes the flow path 34, and a first sensor unit 38 that detects an object H existing between the spout 32a and the bowl 20. A water discharge device 30 having the above, a light emitting device 40 that emits light toward the bowl 20, and a control device 50 that controls the light emitting device 40 are provided.

Then, the light emitting device 40 emits a cold color when the temperature of the hot water W measured by the temperature measuring device 35 is equal to or less than the first temperature threshold Wx, and emits a warm color when the temperature exceeds the first temperature threshold Wx. The control device 50 has a first mode that emits light of the system color and a second mode that emits light in a white system regardless of the temperature of the hot water W measured by the temperature measuring device 35, and the control device 50 has a first sensor unit 38. When is in the non-detection state, the light emitting device 40 is set to the first mode, and when the first sensor unit 38 is in the detection state, the light emitting device 40 is set to the second mode.

As a result, by confirming the emission color of the cold color or the warm color emitted toward the bowl 20, the temperature of the hot water W is intuitively recognized before touching the hot water W discharged from the water discharge device 30. be able to. Further, the light emitting device 40 switches the light emitting color from the cold color system or the warm color system to white when the first sensor unit 38 is in the detection state.

Therefore, for example, since the hand (object H to be detected) that is in contact with the hot water W is not illuminated by the cool colors or the warm colors, it is possible to suppress the discomfort and discomfort. Further, for example, when the temperature of the hot water W discharged from the water discharge device 30 is adjusted, it is possible to insert the hand into the hot water W after confirming the emission color. Therefore, it is possible to make the user recognize the temperature of the hot water W, and it is possible to provide an easy-to-use water supply unit 10.

Further, the control device 50 sets the light emitting device 40 from the second mode after a predetermined time elapses when the first sensor unit 38 is in the non-detection state when the light emitting device 40 is set to the second mode. Switch to the first mode.

For example, when the user washes his / her face, the hands are put in and out below the water discharge device 30 in a short period of time. In such a case, it is possible to suppress the frequent switching of the light emitting color of the light emitting device 40 from the white color to the cold color system or the warm color system, and to suppress the discomfort caused by the flicker.

Next, FIG. 8 shows a second embodiment according to the aspect of the present invention. In the water supply unit 10 according to the second embodiment, when the temperature of the hot water W changes within a predetermined time after the object to be detected H is no longer detected in the second mode, the water supply unit 10 does not wait for the elapse of the predetermined time. It switches to one mode. In the second embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

In the control device 50, when the light emitting device 40 is set to the second mode, the temperature of the hot water W measured by the temperature measuring device 35 within a predetermined time after the object to be detected H is in the non-detected state is set. When there is a change across the first temperature threshold value Wx, the second mode is switched to the first mode.

FIG. 8 is a flow chart showing mode setting control of the water supply unit according to the second embodiment.
The mode setting control shown in FIG. 8 is stored in the storage unit 52 of the control device 50. This mode setting control is repeatedly executed at a predetermined cycle.

In S11 to S18, the same control processing as in S1 to S8 in FIG. 7 is executed. Then, if it is determined in S18 that "NO", that is, the predetermined time has not elapsed, the process proceeds to S19.

In S19, the water temperature Wt is acquired. That is, the control device 50 acquires the temperature of the hot water W in the third flow path 34c measured by the temperature measuring device 35, and proceeds to S20.

In S20, it is determined whether or not the water temperature Wt crosses the first temperature threshold value Wx. That is, the control device 50 determines whether or not the water temperature Wt measured this time crosses the first temperature threshold value Wx based on the water temperature Wt previously measured by the temperature measuring device 35. In other words, in the control device 50, the hot water W in the third flow path 34c changes from "water to hot water" or "hot water to water" within a predetermined time after the object to be detected H deviates from the detection region S. Determine if it has been done.

Then, when it is determined in S20 that "YES", that is, the water temperature Wt crosses the first temperature threshold value Wx, the process proceeds to S13. On the other hand, when it is determined in S20 that "NO", that is, the water temperature Wt does not cross the first temperature threshold value Wx, the process proceeds to S17, and the detection state of the object H to be detected by the first sensor unit 38 is monitored. , Count the time. If the first sensor unit 38 detects the object to be detected H again within this predetermined time, the counted time is reset.

Thus, the water supply unit 10 according to the second embodiment can have the same operation and effect as the water supply unit 10 according to the first embodiment. In the water supply unit 10 according to the second embodiment, when the water temperature Wt changes so as to cross the first temperature threshold value Wx during a predetermined time after the object to be detected H is not detected in the second mode. , The mode is switched to the first mode without waiting for the elapse of a predetermined time.

For example, the water temperature Wt cannot be recognized because the emission color is white for a predetermined time after the first sensor unit 38 is in the non-detection state in the second mode. In such a case, by switching to the first mode when a change of "hot water to water" or "water to hot water" is observed, the temperature change of hot water W can be notified to the user, improving convenience. be able to. Further, for example, when the temperature of the hot water W is adjusted after touching the hot water W to be discharged, the temperature of the hot water discharged is changed by checking the emission color from white to cold or warm. Can be recognized. Further, since the temperature change of the hot water W can be recognized without waiting for the lapse of a predetermined time, it is possible to suppress the wasteful flow of the hot water W.

Further, for example, a water temperature setting remote controller (not shown) common to other water supply units may be used in the building where the water supply unit 10 is installed. In such a case, if another person operates the temperature of the water temperature setting remote controller or turns off the power of the water temperature setting remote controller, the temperature of the hot water W is unknowingly used by the user using the water supply unit 10. May change. However, in the second embodiment, the user can be made to recognize the temperature change of the hot water W during a predetermined time after removing the object H to be detected from the detection area S.

Next, FIG. 9 shows a third embodiment according to the aspect of the present invention. The water supply unit 10 according to the third embodiment is used for a predetermined time when the gradient of the temperature change of the hot water W exceeds a predetermined value within a predetermined time after the object H to be detected is not detected in the second mode. The mode is switched to the first mode without waiting for the progress of. Further, in the third embodiment, the hue of each of the cold and warm emission colors in the first mode is changed according to the temperature of the hot water W. In the third embodiment, the same components as those in the first and second embodiments described above are designated by the same reference numerals, and the description thereof will be omitted.

The light emitting device 40 can change the cold hue and the warm hue of light emitted in the first mode according to the temperature of the hot water W, respectively. That is, the light emitting device 40 changes the light emitting color stepwise based on the water temperature Wt measured by the temperature measuring device 35 among the cold color system and the warm color system.

For example, a cold color threshold value Wx1 and a warm color threshold value Wx2 are stored in the storage unit 52 of the control device 50. The cool color threshold value Wx1 is lower than the first temperature threshold value Wx. Assuming that the first temperature threshold Wx is set at 25 degrees, for example, the cool color threshold Wx1 can be set lower than 25 degrees (for example, 15 degrees).

Then, the light emitting device 40 changes the hue of the light emitting color in the cold color system with the cold color threshold value Wx1 as a boundary. For example, when the water temperature Wt is 10 degrees, the emission color is "blue", and when the water temperature Wt is 20 degrees, the emission color is "blue-green". Thereby, the user can more intuitively recognize the temperature of the hot water W discharged from the spout 32a.

On the other hand, the warm color threshold value Wx2 is higher than the first temperature threshold value Wx. Assuming that the first temperature threshold Wx is set at 25 degrees, for example, the warm color threshold Wx2 can be set higher than 25 degrees (for example, 35 degrees).

Then, the light emitting device 40 changes the hue of the light emitting color in the warm color system with the warm color threshold value Wx2 as a boundary. For example, when the water temperature Wt is 40 degrees, the emission color is "yellow", and when the water temperature Wt is 45 degrees, the emission color is "red". Thereby, the user can more intuitively recognize the temperature of the hot water W discharged from the spout 32a.

Further, in the control device 50, the first temperature Wt1 and the first temperature Wt1 of the hot water W measured by the temperature measuring device 35 within a predetermined time after the first sensor unit 38 is in the non-detection state in the second mode. When the amount of temperature increase with the second temperature Wt2 measured later exceeds the first temperature gradient, or when the amount of temperature decrease between the first temperature Wt1 and the second temperature Wt2 exceeds the second temperature gradient, the second temperature gradient is reached. The mode is switched to the first mode. The absolute value of the value of the first temperature gradient and the value of the second temperature gradient may be the same value or may be different values.

That is, in the control device 50, the temperature gradient ((Wt2-Wt1) / Δt) of the water temperature Wt per unit time exceeds a predetermined value (first temperature gradient, second temperature gradient) during the predetermined time. If so, the mode is switched from the second mode to the first mode without waiting for the elapse of a predetermined time. The first temperature gradient and the second temperature gradient are stored in advance in the storage unit 52 of the control device 50. The first temperature gradient and the second temperature gradient can be set by experiments and simulations in consideration of the place and area where the water supply unit 10 is installed.

FIG. 9 is a flow chart showing mode setting control of the water supply unit according to the third embodiment.
The mode setting control shown in FIG. 9 is stored in the storage unit 52 of the control device 50. This mode setting control is repeatedly executed at a predetermined cycle.

In S21 to S23, the same control processing as in S1 to S3 in FIG. 7 is executed. Then, when it is determined in S23 that "YES", that is, the water temperature Wt is equal to or less than the first temperature threshold value Wx, the process proceeds to S24. On the other hand, if it is determined in S23 that "NO", that is, the water temperature Wt exceeds the first temperature threshold value Wx, the process proceeds to S27.

In S24, it is determined whether or not the water temperature Wt is equal to or less than the cold color threshold value Wx1 (Wt ≦ Wx1). That is, the control device 50 determines whether or not the temperature of the hot water W in the third flow path 34c measured by the temperature measuring device 35 is equal to or less than the cold color threshold value Wx1. Then, when it is determined in S24 that "YES", that is, the water temperature Wt is equal to or less than the cold color threshold value Wx1, the process proceeds to S25. On the other hand, if it is determined in S24 that "NO", that is, the water temperature Wt exceeds the cold color threshold value Wx1, the process proceeds to S26.

In S25, blue light is emitted. That is, the control device 50 causes the light emitting device 40 to emit blue light among the cool light emitting colors, and ends the light emission. As a result, the user can recognize that the temperature of the hot water W is lower without touching the hot water W discharged from the spout 32a.

In S26, blue-green light is emitted. That is, the control device 50 causes the light emitting device 40 to emit blue-green light among the cold-colored light-emitting colors, and ends the light emission. As a result, the user can recognize that the temperature of the hot water W is low without touching the hot water W discharged from the spout 32a.

In S27, it is determined whether or not the water temperature Wt is equal to or less than the warm color threshold value Wx2 (Wt ≦ Wx2). That is, the control device 50 determines whether or not the temperature of the hot water W in the third flow path 34c measured by the temperature measuring device 35 is equal to or less than the warm color threshold value Wx2. Then, if "YES" in S27, that is, if it is determined that the water temperature Wt is equal to or less than the warm color threshold value Wx2, the process proceeds to S28. On the other hand, if it is determined in S27 that "NO", that is, the water temperature Wt exceeds the warm color threshold value Wx2, the process proceeds to S29.

In S28, yellow light is emitted. That is, the control device 50 causes the light emitting device 40 to emit yellow light among the light emitting colors of the warm colors, and ends the light emission. As a result, the user can recognize that the temperature of the hot water W is high without touching the hot water W discharged from the spout 32a.

In S29, red light is emitted. That is, the control device 50 causes the light emitting device 40 to emit red light among the light emitting colors of the warm colors, and ends the light emission. As a result, the user can recognize that the temperature of the hot water W is higher without touching the hot water W discharged from the spout 32a.

In S30 to S32, the same control processing as in S6 to S8 in FIG. 7 is executed. In S33, the same control process as in S19 in FIG. 8 is executed.

In the next S34, it is determined whether or not the amount of change in the water temperature Wt exceeds the first temperature gradient or the second temperature gradient. That is, the control device 50 stores in the storage unit 52 the first temperature Wt1 of the hot water W measured by the temperature measuring device 35 after the first sensor unit 38 is in the non-detection state in the second mode. After that, the control device 50 stores the second temperature Wt2 of the hot water W measured by the temperature measuring device 35 in the storage unit 52. Then, the control device 50 calculates the amount of temperature change between the second temperature Wt2 and the first temperature Wt1 and determines whether or not this temperature change amount exceeds the first temperature gradient or the second temperature gradient.

Then, if "YES" in S34, that is, if it is determined that the amount of change in the water temperature Wt exceeds the first temperature gradient or the second temperature gradient, the process proceeds to S23. On the other hand, if it is determined in S34 that "NO", that is, the amount of change in the water temperature Wt does not exceed the first temperature gradient or the second temperature gradient, the process proceeds to S31, and the object H detected by the first sensor unit 38 proceeds. The detection status of is monitored and the time is counted. If the first sensor unit 38 detects the object to be detected H again within this predetermined time, the counted time is reset.

Thus, the water supply unit 10 according to the third embodiment can have the same operation and effect as the water supply unit 10 according to the first and second embodiments. In the third embodiment, when the water temperature Wt changes so as to exceed the first temperature gradient or the second temperature gradient during a predetermined time after the object to be detected H is no longer detected in the second mode. The mode is switched to the first mode without waiting for the elapse of a predetermined time.

As a result, for example, when the on-off valve is manually opened and the user interrupts the use of water discharge while the on-off valve is temporarily open during washing or washing a cup, the suspension is in progress. By confirming the change from white to cold or warm colors, the user can be made aware that the temperature of the hot water has changed significantly due to a change in the hot water supply temperature or the like.

That is, for example, a water temperature setting remote controller (not shown) common to other water supply units may be used in the building where the water supply unit 10 is installed. In such a case, if another person operates the temperature of the water temperature setting remote controller or turns off the power of the water temperature setting remote controller, the temperature of the hot water W is unknowingly used by the user using the water supply unit 10. May change. However, in the water supply unit 10 according to the third embodiment, the user can be made to recognize a remarkable temperature change of the hot water W during a predetermined time after removing the object H to be detected from the detection area S.

Further, by providing the cold color threshold value Wx1 and the warm color threshold value Wx2, the hue is changed by the water temperature Wt among the cold color system and the warm color system. This makes it possible for the user to recognize the temperature of the hot water W in more detail.

Next, FIGS. 10 and 11 show a fourth embodiment according to the aspect of the present invention. When the water temperature Wt exceeds the second temperature threshold value Wy, which is higher than the first temperature threshold value Wx, the water supply unit 10 according to the fourth embodiment is set to a different alert mode from the first mode and the second mode. It is set. In the fourth embodiment, the same components as those in the first to third embodiments described above are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 10 is a block diagram showing a water channel system and an electrical system of the water supply unit according to the fourth embodiment.
As shown in FIG. 10, the light emitting device 40 has a first mode and a second mode when the temperature of the hot water W measured by the temperature measuring device 35 exceeds the second temperature threshold Wy, which is higher than the first temperature threshold Wx. It further has an alert mode that emits light in a mode different from that of the mode. Then, when the temperature of the hot water W measured by the temperature measuring device 35 exceeds the second temperature threshold value Wy, the control device 50 sets the light emitting device 40 to the alert mode.

In this alert mode, the user is made to recognize that the temperature of the hot water W measured by the temperature measuring device 35 is high. In the alert mode, for example, the light emitting device 40 emits light by blinking red.

The second temperature threshold value Wy is a temperature at which the user feels hot when he / she touches the hot water W, and is set by, for example, an experiment or a simulation. As an example, the second temperature threshold value Wy is set to an arbitrary value (for example, 47 degrees), for example, between 45 degrees and 50 degrees.

As a result, the light emitting device 40 illuminates the bowl 20 with, for example, blinking red. By confirming the red blinking illuminated by the bowl 20, the user can recognize that the temperature of the hot water W discharged from the spout 32a is high.

FIG. 11 is a flow chart showing mode setting control of the first mode, the second mode, and the alert mode.
The mode setting control shown in FIG. 11 is stored in the storage unit 52 of the control device 50. This mode setting control is repeatedly executed at a predetermined cycle.

In S41, the same control processing as in S1 in FIG. 7 is executed. Then, in the next S42, it is determined whether or not the water temperature Wt exceeds the second temperature threshold value Wy (Wt> Wy). That is, the control device 50 determines whether the hot water W in the third flow path 34c has a high temperature. For example, when the second temperature threshold value Wy is 47 degrees, it is determined whether the hot water W in the third flow path 34c is 47 degrees or less or exceeds 47 degrees.

Then, if "YES" in S42, that is, if it is determined that the water temperature Wt exceeds the second temperature threshold value Wy, the process proceeds to S52. On the other hand, if it is determined in S42 that "NO", that is, the water temperature Wt is equal to or less than the second temperature threshold value Wy, the process proceeds to S43.

In S43 to S47, the same control processing as in S2 to S6 in FIG. 7 is executed. In the next S48, the water temperature Wt is acquired and the process proceeds to S49. S49 monitors whether or not the water temperature Wt exceeds the second temperature threshold value Wy during the second mode, and the same control process as in S42 is executed.

Then, when it is determined in S49 that "YES", that is, the water temperature Wt exceeds the second temperature threshold value Wy, the process proceeds to S52. On the other hand, if it is determined in S49 that "NO", that is, the water temperature Wt is equal to or less than the second temperature threshold value Wy, the process proceeds to S50.

In S50, the same control process as in S7 in FIG. 7 is executed. Then, when “YES” in S50, that is, when it is determined that the first sensor unit 38 has detected the object to be detected H, the process returns to S48 and monitors whether the water temperature Wt exceeds the second temperature threshold value Wy. do. On the other hand, if it is determined in S50 that "NO", that is, the first sensor unit 38 has not detected the object to be detected H, the process proceeds to S51.

In S51, the same control process as in S8 in FIG. 7 is executed. Then, if "YES" in S51, that is, if it is determined that a predetermined time has elapsed since the first sensor unit 38 was in the detected state, the end is set. On the other hand, when it is determined in S51 that "NO", that is, a predetermined time has not elapsed since the first sensor unit 38 was in the detected state, the process returns to S48, the time is counted, and the water temperature Wt is the second. 2 Monitors whether the temperature threshold Wy is not exceeded and whether the first sensor unit 38 detects the object to be detected H. If the first sensor unit 38 detects the object to be detected H again within this predetermined time, the counted time is reset.

S52 emits red blinking. That is, the control device 50 causes the light emitting device 40 to emit light of blinking red to end the process. As a result, the user can recognize that the temperature of the hot water W discharged from the spout 32a is high.

Thus, the water supply unit 10 according to the fourth embodiment can have the same operation and effect as the water supply unit 10 according to the first embodiment. In the fourth embodiment, when the water temperature Wt exceeds the second temperature threshold value Wy, it is used by executing light emission (for example, blinking red) in a mode different from the light emission of the cold color system, the warm color system, and the white system. Can call attention to people.

For example, if the previous user has discharged hot water W having a temperature higher than the second temperature threshold Wy from the water discharge port 32a, the hot water W will remain in the third flow path 34c. .. In such a case, the user immediately after confirming the red blinking emitted from the light emitting device 40 can recognize that the high temperature hot water W is discharged from the water discharge port 32a. Further, since it is monitored whether or not the water temperature Wt exceeds the second temperature threshold value Wy even during the second mode, it is possible to prevent the user from inadvertently touching the high temperature hot water W.

Next, FIGS. 12 and 13 show a fifth embodiment according to the aspect of the present invention. The water supply unit 10 according to the fifth embodiment further includes a second sensor unit 60 for detecting the human body, and stops light emission from the light emitting device 40 when the second sensor unit 60 does not detect the human body. be. In the fifth embodiment, the same components as those in the first to fourth embodiments described above are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 12 is a block diagram showing a water channel system and an electrical system of the water supply unit according to the fifth embodiment.
As shown in FIG. 12, the second sensor unit 60 is connected to the control device 50 and transmits a detection signal to the control device 50. The second sensor unit 60 is, for example, a microwave sensor, an infrared sensor, an electrostatic sensor, a pyroelectric sensor, or the like, and detects an approach to the bowl 20 or a human body located in front of the bowl 20.

The second sensor unit 60 is provided in, for example, a cabinet 12, a bowl 20, a back guard unit 22, a shelf unit 33, and the like. The mounting position of the second sensor unit 60 is arbitrary as long as it can detect a person existing in front of the bowl 20 or a person moving toward the bowl 20. For example, a pressure sensor or the like may be provided on the floor in front of the bowl 20, and the pressure sensor may detect a human body in front of the bowl 20.

The control device 50 stops the light emission from the light emitting device 40 when the second sensor unit 60 is in the non-detection state. As a result, when the second sensor unit 60 does not detect the user in front of the bowl 20, the light emission from the light emitting device 40 is stopped (turned off), so that power saving can be achieved.

FIG. 13 is a flow chart showing mode setting control between the first mode and the second mode.
The mode setting control shown in FIG. 13 is stored in the storage unit 52 of the control device 50. This mode setting control is repeatedly executed at a predetermined cycle.

In S61, the same control processing as in S1 in FIG. 7 is executed. In the next S62, it is determined whether or not the second sensor unit 60 has detected the human body. That is, the control device 50 determines whether or not the human body approaching or existing in the bowl 20 is detected based on the detection signal transmitted from the second sensor unit 60.

Then, if "YES" in S62, that is, if it is determined that the second sensor unit 60 has detected the human body, the process proceeds to S63. On the other hand, when it is determined in S63 that "NO", that is, the second sensor unit 60 has not detected the human body, the process proceeds to S70, and the light emitting device 40 is stopped (turned off) to end the process. In S63 to S69, the same control processing as in S2 to S8 in FIG. 7 is executed.

Thus, the water supply unit 10 according to the fifth embodiment can have the same operation and effect as the water supply unit 10 according to the first embodiment. In the fifth embodiment, when the second sensor unit 60 does not detect the human body (user) in front of the bowl 20, the light emission from the light emitting device 40 is stopped (turned off), so that power saving is achieved. Can be planned. Further, when the second sensor unit 60 detects a human body, the bowl 20 is illuminated by the light emitted by the first mode. Therefore, for example, water is not turned on in the room where the water supply unit 10 is arranged. The position of the surrounding unit 10 can be grasped, and the water surrounding unit 10 can be used.

In the above-described embodiment, the case where the control device 50 is used to determine whether the cool color system or the warm color system is used in the first mode has been described as an example. However, the present invention is not limited to this, and for example, the light emitting device 40 may acquire the water temperature Wt from the temperature measuring device 35 and determine whether to use the cold color system or the warm color system in the first mode.

Further, in the above-described embodiment, the case where the hot water W is discharged from the water discharge port 32a by the detection of the first sensor unit 38 has been described as an example. However, the present invention is not limited to this, and for example, the first sensor unit 38 may be used only for setting the second mode by detecting the object to be detected, and the spout may be used only by detecting the first sensor unit 38. Water may not be discharged from 32a. That is, the hot water W may be discharged from the water discharge port 32a only by the manual operation unit 37, or the hot water W may be discharged from the water discharge port 32a by the detection of another sensor unit different from the first sensor unit 38.

Further, in the third embodiment described above, the case where two types of hues are emitted in each of the cold color system and the warm color system by comparing the water temperature Wt with the cold color threshold value Wx1 and the warm color threshold value Wx2 will be described as an example. did. However, the present invention is not limited to this, and for example, a plurality of cold color threshold values and a plurality of warm color threshold values may be provided. That is, the cold color system and the warm color system may emit light in three or more kinds of hues, respectively. Further, in the first, second, fourth, and fifth embodiments, two or more types of hues may be emitted among the cool colors and the warm colors.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. The above-mentioned embodiments, which have been appropriately designed by those skilled in the art, are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, dimensions, material, arrangement, and the like of each element included in the water supply unit are not limited to those exemplified, and can be appropriately changed. Further, the elements included in each of the above-described embodiments can be combined as long as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

10 Water supply unit 12 Cabinet 12a Main body 12b, 12c Drawer 14 Mirror cabinet 14a Cabinet main body 14b-14d Door 20 Bowl 20a Drain port 22 Back guard part 30 Water spouting device 32 Water spouting part 32a Water spouting port 33 Shelf part 34 Channel 34a 1st Flow path 34b 2nd flow path 34c 3rd flow path 35 Temperature measuring device 36 On-off valve 37 Manual operation unit 38 1st sensor unit 40 Light emitting device 50 Control device 52 Storage unit 60 2nd sensor unit 100 Water supply source 102 Hot water supply source H Detected object L1, L2 Optical S Detection area W Hot water

Claims (6)

With a bowl
A spout that discharges hot water into the bowl, a flow path through which hot water flows toward the spout, a temperature measuring device that measures the temperature of hot water flowing through the flow path, and an on-off valve that opens and closes the flow path. A water discharge device having a first sensor unit for detecting an object to be detected existing between the water discharge port and the bowl, and a water discharge device.
A light emitting device that emits light toward the bowl and
A control device that controls the light emitting device and
Equipped with
The light emitting device is
A first mode in which a cold color is emitted when the temperature of hot water measured by the temperature measuring device is equal to or lower than the first temperature threshold, and a warm color is emitted when the temperature exceeds the first temperature threshold. When,
The second mode, which emits white light regardless of the temperature of the hot water measured by the temperature measuring device,
Have,
When the first sensor unit is in the non-detection state, the control device sets the light emitting device to the first mode, and when the first sensor unit is in the detection state, the light emitting device is set to the first mode. A water supply unit characterized by being set to 2 modes. When the first sensor unit is in the non-detection state when the light emitting device is set to the second mode, the control device causes the light emitting device from the second mode after a predetermined time has elapsed. The water supply unit according to claim 1, wherein the mode is switched to the first mode. The water discharge device further includes a manual operation unit capable of manually opening and closing the on-off valve.
The control device switches from the second mode to the first mode when the temperature of hot water measured by the temperature measuring device changes over the first temperature threshold value during the predetermined time. The water supply unit according to claim 2. The water discharge device further includes a manual operation unit capable of manually opening and closing the on-off valve.
The light emitting device changes the cold hue and the warm hue of light emitted in the first mode according to the temperature of hot water, respectively.
In the control device, the amount of temperature increase between the first temperature of hot water measured by the temperature measuring device and the second temperature measured after the first temperature during the predetermined time exceeds the first temperature gradient. The water according to claim 2, wherein the second mode is switched to the first mode when the temperature drop between the first temperature and the second temperature exceeds the second temperature gradient. Surrounding unit. The light emitting device emits light in a mode different from that of the first mode and the second mode when the temperature of hot water measured by the temperature measuring device exceeds the second temperature threshold value higher than the first temperature threshold value. Has an additional alert mode to
The control device is characterized in that, when the temperature of hot water measured by the temperature measuring device exceeds the second temperature threshold value, the light emitting device is set to the alert mode. The water supply unit according to any one of the items. Further equipped with a second sensor unit for detecting an approach to the bowl or a human body located in front of the bowl.
The control device is
The water supply unit according to any one of claims 1 to 5, wherein when the second sensor unit is in a non-detection state, light emission from the light emitting device is stopped.

Images