JP2012239828A - Bathtub cover and bathtub monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathtub cover allowing a user to easily confirm the hot-water temperature inside the bathtub, and a bathtub monitoring system with the bathtub cover.SOLUTION: The bathtub cover 10 includes a Seebeck element 11, an LED 12, a control circuit 13, and a temperature sensor 14, etc. The Seebeck element 11 outputs voltage (electric power) to the LED 12, the control circuit 13, etc. The LED 12 includes, for example, a white LED chip, and can emit white light from the surface 101 of the bathtub cover 10 with the electric power from the Seebeck element 11. The temperature sensor 14 is provided on the rear surface 102 of the bathtub cover 10, and detects the temperature (hot-water temperature) inside the bathtub covered with the bathtub cover 10. The control circuit 13 controls the light emission state of the LED 12 according to the temperature detected by the temperature sensor 14.

Description

  The present invention relates to a bath lid used for a bathtub and a bathtub monitoring system including the bath lid.

  Conventionally, in order to see the amount of water in a bathtub, it was necessary to open the bath lid and put a hand in the bathtub. For this reason, the bathtub which can confirm hot water adjustment without putting a hand in a bathtub is examined.

  For example, a bathtub is disclosed in which a base material is integrally molded with a temperature indicating material and the surface has the temperature indicating material (see Patent Document 1).

JP-A-8-488

  However, in the bathtub of Patent Document 1, although it is not necessary to put a hand directly into the bathtub and look at the hot water, the temperature indicator is used, so the visibility is not good. In particular, when the bathroom is dark, the temperature in the bathtub cannot be confirmed.

  This invention is made | formed in view of such a situation, and it aims at providing the bathtub monitoring system provided with the bath lid which can confirm the hot water temperature in a bathtub easily, and this bath lid.

  The bath lid according to the present invention is a bath lid provided with a lid, and is provided on a surface of the lid, and includes a light emitting unit having a light source, and a power supply unit that supplies power to the light emitting unit, The light emitting device is configured to emit light according to temperature.

  In this invention, the light emission part which is provided in the surface of a cover body and has a light source, and the power supply part which supplies electric power to a light emission part are provided. Since the light emitting unit includes a light source and can emit light according to the temperature, it has excellent visibility and can easily check the hot water temperature in the bathtub even when the bathroom is dark. Moreover, since the hot water temperature can be notified by light emission of the light source, the hot water temperature in the bathtub can be easily confirmed through the door of the bathroom, for example, without entering the bathroom.

  The bath lid according to the present invention is provided on the surface of the lid, and includes a temperature detection unit that detects a temperature, and a control unit that controls a light emission state of the light emission unit according to the temperature detected by the temperature detection unit. It is characterized by providing.

  The present invention includes a temperature detection unit that is provided on the surface of the lid and detects the temperature, and a control unit that controls the light emission state of the light emission unit according to the temperature detected by the temperature detection unit. The temperature detection unit is, for example, an infrared temperature sensor, and when the bath lid is placed on the bathtub, the bath side is the front surface, and the bathtub side is the back surface. . Thereby, the hot water temperature in a bathtub is detectable. The control unit controls the light emission state of the light emitting unit according to the detected hot water temperature. For example, it controls whether the light emitting unit is continuously lit or blinked, the brightness is changed, or the emission color is changed. Thereby, the hot water temperature in a bathtub or the change of hot water temperature can be correctly discriminate | determined by a light emission state. Moreover, it is not necessary to open the bath lid to check the hot water temperature.

  The bath lid according to the present invention includes a storage unit that stores a set value or a setting range of temperature, and the control unit determines whether or not the temperature detected by the temperature detection unit is within the set value or setting range. Accordingly, the light emitting unit is configured to control to emit light in different light emitting states.

  In the present invention, a storage unit that stores a set value or a set range of temperature is provided, and the control unit has a light emitting state in which the light emitting unit varies depending on whether or not the detected temperature is within the set value or set range. Control to emit light. Different light emission states include continuous lighting or blinking, dimming, or toning. The set value or set range can be set as appropriate, and can be any temperature or temperature range between 38 ° C. and 46 ° C., for example. For example, if the detected hot water temperature in the bathtub is within a set value or a set range, the control unit turns on the light emitting unit, and if the detected hot water temperature is outside the set value or set range, the control unit causes the light emitting unit to blink. . Thereby, it can be easily determined whether the hot water temperature in the bathtub has risen too much or has been cooled too much. Alternatively, for example, if the detected hot water temperature in the bathtub is within a set value or a setting range, the control unit turns on the light emitting unit in white, and if the detected hot water temperature exceeds the set value or the setting range, When the detected hot water temperature falls below the set value or set range, the light emitting unit is lit in blue. Thereby, it can be easily determined whether the hot water temperature in the bathtub has risen too much or has been cooled too much.

  The bath lid according to the present invention is characterized in that the control unit is configured to control lighting, dimming or blinking of the light emitting unit.

  In the present invention, the control unit controls lighting, dimming, or blinking of the light emitting unit. Thereby, the hot water temperature in a bathtub or the change of hot water temperature can be correctly discriminate | determined by the brightness of a light emission part, or lighting or blinking.

  The bath lid according to the present invention is characterized in that the light emitting unit includes light sources having different emission colors, and the control unit is configured to control the color adjustment of the light emitting unit.

  In the present invention, the light emitting unit includes light sources having different emission colors, and the control unit controls the toning of the light emitting unit. Thereby, the hot water temperature in a bathtub or the change of hot water temperature can be correctly discriminate | determined with the luminescent color of a light emission part.

  In the bath lid according to the present invention, the temperature detection unit is further provided on the back surface of the lid, and the control unit notifies that when a temperature difference detected by each temperature detection unit exceeds a predetermined value. The light emitting state of the light emitting unit is preferably controlled.

  In the present invention, the temperature detector is provided on each of the front and back surfaces of the lid. For example, infrared temperature sensors are installed on both the front side (bathroom side) and back side (bathside) of the bath lid, and the temperature of both is detected by detecting the temperature of the hot water in the bathtub and the temperature in the bathroom (bathroom ambient temperature). To detect. When the temperature difference detected by each temperature detection unit exceeds a predetermined value, the control unit controls the light emission state of the light emitting unit to notify that. If the temperature difference is within a predetermined value (for example, 10 ° C.), the light emitting unit is continuously turned on. If the temperature difference exceeds the predetermined value, the light emitting unit is blinked and the temperature in the bathroom and the hot water temperature are changed. Calls attention that the temperature difference is large. As a result, especially when the bathroom is cold, such as in winter, the possibility of the body being affected by a sudden temperature change (for example, heat shock) is notified before entering the bathroom. Occurrence can be prevented.

  The bath lid according to the present invention is characterized in that the power supply unit includes an Seebeck element that has an electrode on each of the front and back surfaces of the lid and supplies electric power according to a temperature difference between the front and back surfaces of the lid. To do.

  In this invention, a power supply part is provided with a Seebeck element which has an electrode in each front and back of a cover body, and supplies electric power according to the temperature difference of the front and back surfaces of a cover body. In other words, by making the high temperature side detected by the Seebeck element the bathtub side and the low temperature side the bathroom side, the light emitting part can be made to emit light using the hot water temperature in the bathtub, so a dry battery or a secondary battery is not required. In addition, no external power supply is required, and the operation (light emission) of the light emitting unit can be realized with a single bath lid.

  In the bath lid according to the present invention, the power supply unit includes an Seebeck element that has an electrode on each of the front and back surfaces of the lid, and outputs a voltage according to a temperature difference between the front and back surfaces of the lid. Is configured to emit light in different light emission states depending on the voltage output from the Seebeck element.

  In this invention, a power supply part is provided with a Seebeck element which has an electrode in each front and back of a cover body, and outputs the voltage according to the temperature difference of the front and back surfaces of a cover body. That is, the Seebeck element outputs a higher (larger) voltage as the temperature difference between the hot water temperature in the bathtub and the temperature in the bathroom (bathroom atmosphere temperature) is larger. The light emitting unit emits light in different light emission states depending on the voltage output from the Seebeck element. For example, when the temperature difference between the hot water temperature in the bathtub and the temperature in the bathroom (atmosphere temperature in the bathroom) is small, that is, when the voltage output from the Seebeck element is small (low), the light emitting unit is lit in green, If the temperature difference between the hot water temperature and the temperature in the bathroom (bathroom ambient temperature) is large, that is, if the voltage output by the Seebeck element is large (high), the light-emitting part is lit in red (even if green is lit, it is turned off) May be) As a result, especially when the bathroom is cold, such as in winter, the possibility of the body being affected by a sudden temperature change (for example, heat shock) is notified before entering the bathroom. Occurrence can be prevented.

  The bath lid according to the present invention is characterized in that the light emitting unit includes an LED.

  In this invention, a light emission part is equipped with LED. Thereby, a light-emitting part with low power consumption and high luminance can be realized, and visibility can be improved. Further, it is possible to easily control the light emission state such as dimming and toning simply by controlling the current flowing through the LED.

  The bathtub monitoring system according to the present invention is a bathtub monitoring system including a bath lid provided with a lid and a notification device that notifies the state of the bathtub in which the bath lid is used, wherein the bath lid detects temperature. And a transmitter that transmits temperature information related to the temperature detected by the temperature detector to the notification device, the notification device receiving the temperature information, and the temperature information received by the receiver It is provided with the alerting | reporting part which alert | reports the state of the said bathtub based on.

  The present invention includes a bath lid provided with a lid, and a notification device that informs a state of a bathtub in which the bath lid is used, and the bath lid is detected by a temperature detection unit that detects temperature, and a temperature detection unit. The transmitter is provided for transmitting temperature information related to the temperature to the notification device. The notification device includes a reception unit that receives temperature information transmitted from the bath lid, and a notification unit that notifies the state of the bathtub based on the temperature information received by the reception unit. Thereby, the hot water temperature in a bathtub or the change of a hot water temperature can be discriminate | determined without opening a bath lid. Moreover, since the notification unit is provided in a notification device different from the bath lid, the power consumption of the bath lid can be suppressed.

  In the bathtub monitoring system according to the present invention, the notification device includes a light source, and the notification unit includes a control unit that controls a light emission state of the light source based on the temperature information.

  In this invention, an alerting | reporting apparatus is provided with a light source, and an alerting | reporting part is provided with the control part which controls the light emission state of a light source based on temperature information. An alerting | reporting apparatus is an illuminating device installed in the bathroom, for example. By changing the light emission state of the lighting in the bathroom based on the temperature information, the hot water temperature in the bathtub or a change in the hot water temperature can be easily confirmed. Moreover, since the hot water temperature can be notified by light emission of the light source, the hot water temperature in the bathtub can be easily confirmed through the door of the bathroom, for example, without entering the bathroom. The notification device is a switch (such as a switch for turning on / off a lighting power source) installed on a wall or the like. Thereby, the hot water temperature in a bathtub or a change of hot water temperature can be confirmed before entering a bathroom by making the switch for illumination outside a bathroom light-emit.

  In the bathtub monitoring system according to the present invention, the notification device includes a display unit that displays characters or images, and the notification unit is configured to display the temperature information on the display unit. To do.

  In this invention, an alerting | reporting apparatus is provided with the display part which displays a character or an image, and an alerting | reporting part displays temperature information on a display part. Thereby, for example, the hot water temperature in the bathtub or a change in the hot water temperature can be confirmed before entering the bathroom with a monitor (display unit) in the living room.

  In the bathtub monitoring system according to the present invention, the notification device includes a sound output unit, and the notification unit is configured to output a notification sound or a warning sound from the sound output unit based on the temperature information. It is characterized by that.

  In this invention, an alerting | reporting apparatus is provided with an audio | voice output part (for example, speaker etc.), and an alerting | reporting part outputs a notification sound or a warning sound from an audio | voice output part based on temperature information. Thereby, for example, the temperature of the hot water in the bathtub or the change of the hot water temperature can be confirmed before entering the bathroom with the speaker of the monitor in the living room.

  According to the present invention, the temperature of the hot water in the bathtub can be easily confirmed even when the bathroom is dark. Moreover, even if it does not enter a bathroom, the hot water temperature in a bathtub can be easily confirmed through the door of a bathroom, for example.

3 is a schematic diagram illustrating an installation example of a bath lid according to Embodiment 1. FIG. 4 is a schematic diagram illustrating an example of a configuration of a bath lid according to Embodiment 1. FIG. FIG. 3 is a block diagram showing a configuration of a control circuit as a first example of the bath lid of the first embodiment. FIG. 6 is an explanatory diagram illustrating a first example of the operation of the bath lid according to the first embodiment. 3 is a block diagram showing a configuration of a control circuit as a second example of the bath lid of the first embodiment. FIG. FIG. 10 is an explanatory diagram illustrating a second example of the operation of the bath lid according to the first embodiment. FIG. 10 is a schematic diagram illustrating another example of the configuration of the bath lid according to the first embodiment. FIG. 10 is an explanatory diagram illustrating a third example of the operation of the bath lid according to the first embodiment. FIG. 10 is a schematic diagram illustrating another example of the configuration of the bath lid according to the first embodiment. It is a circuit diagram which shows an example of a structure of a light emission part. It is a block diagram which shows an example of a structure of the bathtub monitoring system of Embodiment 2.

(Embodiment 1)
Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is a schematic diagram illustrating an installation example of the bath lid 10 according to the first embodiment, FIG. 2 is a schematic diagram illustrating an example of the configuration of the bath lid 10 according to the first embodiment, and FIG. 3 is a diagram illustrating the first embodiment. It is a block diagram which shows the structure of the control circuit 13 as a 1st example of the bath lid 10 of this. As shown in FIG. 1, the bath lid 10 includes a lid 103 that has, for example, a rectangular plate shape. The lid 103 is made of, for example, a foamed resin, has excellent heat retention, is subjected to antibacterial treatment, and includes a folding type and a shutter type.

  The bath lid 10 (lid body 103) has a front surface 101 and a back surface 102. With the bath lid 10 placed on the upper surface of the bathtub 50, the front surface 101 is the front side (bathroom side), and the back surface 102 is the back side (tub side). It becomes.

  As shown in FIG. 2, the bath lid 10 includes a Seebeck element 11 as a power supply unit, an LED 12 as a light emitting unit, a control circuit 13 as a control unit, a temperature sensor 14 as a temperature detection unit, and the like.

  The Seebeck element 11 is a so-called thermoelectric conversion element, and can convert heat into electric power. The Seebeck element 11 includes electrodes 111 and 112 made of two kinds of metals or semiconductors, and outputs a voltage (power) corresponding to a temperature difference between the electrodes 111 and 112. In the example of FIG. 2, by providing the low temperature side electrode 111 on the front side of the lid body 103 and providing the high temperature side electrode 112 on the back side of the lid body 103, the temperature difference between the temperature in the bathtub 50 and the bathroom temperature is obtained. Voltage (power) can be output. The Seebeck element 11 outputs a voltage (power) to the LED 12, the control circuit 13, and the like. The power supply unit is not limited to the Seebeck element 11, and a dry battery, a secondary battery, or the like can also be used.

  The LED 12 includes, for example, a white LED chip, and can emit white light from the surface 101 of the bath lid 10 by the electric power from the Seebeck element 11. The LED 12 can be provided at a substantially central portion of the surface 101 of the bath lid 10. When provided in the vicinity of any of the four corners of the bath lid 10, the visibility of the LED 12 from outside the bathroom is deteriorated through the bathroom door depending on the orientation of the bath lid 10 when the bath lid 10 is placed in the bathtub 50. There is a case. By providing the LED 12 at a substantially central portion of the surface 101 of the bath lid 10, substantially the same visibility can be obtained regardless of the orientation of the bath lid 10 when placed in the bathtub 50.

  In addition, LED12 is not limited to what is provided with a white LED chip. For example, the LED 12 may include LED chips of other emission colors (for example, red, blue, green, etc.) in addition to or instead of the white LED chip. Further, the light emitting unit is not limited to the LED 12, and a surface light emitting element such as an organic EL can also be used. When a surface light emitting element is used, the light emitting element may be provided on substantially the entire surface 101 of the bath lid 10 or may be provided on a part of the surface 101.

  The temperature sensor 14 is an infrared temperature sensor, for example, and is provided on the back surface 102 of the bath lid 10. That is, the temperature sensor 14 detects the temperature (hot water temperature) of hot water (or water) in the bathtub 50 in a state where the bathtub 50 is covered with the bath lid 10. The temperature sensor 14 outputs the detected hot water temperature to the control circuit 13.

  The control circuit 13 controls the light emission state of the LED 12 according to the temperature detected by the temperature sensor 14.

  The control circuit 13 includes a touch panel 131 provided on the surface 101 of the bath lid 10. The touch panel 131 can set, for example, a set temperature or set range of hot water temperature that the user considers optimal. The set temperature or set range can be set as appropriate. For example, any temperature value or temperature range between 38 ° C. and 46 ° C. can be set. The control circuit 13 can be operated by the electric power from the Seebeck element 11, but even if a solar cell having a required size is provided on the surface 101 of the bath lid 10 and the electric power generated by the solar cell is supplied to the touch panel 131. Good. Thereby, even when hot water does not accumulate in the bathtub 50, the touch panel 131 can be operated.

  As shown in FIG. 3, the control circuit 13 includes a switching element 132 such as an FET, a set temperature storage unit 133 that stores a set temperature set by the touch panel 131, a comparison unit 134, a drive circuit 135, and the like.

  The comparison unit 134 compares the temperature detected by the temperature sensor 14 with the set temperature or set temperature range stored in the set temperature storage unit 133, and compares the result (for example, whether or not the detected temperature is the set temperature or is set). Whether the temperature is within the temperature range) is output to the drive circuit 135.

  If the detected temperature is within the set temperature (set value) or the set temperature range, the drive circuit 135 outputs a signal to turn on the switching element 132 to the switching element 132, and the detected temperature is the set temperature or set temperature range. If it is outside, a signal for turning on / off the switching element 132 at a predetermined interval (for example, an interval of 0.2 seconds to 0.5 seconds) is output to the switching element 132.

  FIG. 4 is an explanatory diagram illustrating a first example of the operation of the bath lid 10 according to the first embodiment. 4A shows a case where hot water (water) in the bathtub 50 is poured, FIG. 4B shows a case where the temperature of the hot water cools, and shows an operation when the configuration illustrated in FIG. 3 is used. As shown in FIGS. 4A and 4B, when the temperature of the hot water (water) in the bathtub 50 is lower than the set temperature (set temperature range), the control circuit 13 causes the LED 12 to blink. Thereby, it can be easily recognized that the hot water temperature in the bathtub 50 has not yet reached the set temperature, or that the hot water in the bathtub 50 has cooled.

  Next, when the temperature of the hot water (water) in the bathtub 50 is within the set temperature (set temperature range), the control circuit 13 turns on the LED 12 continuously. Thereby, it can recognize easily that the hot water temperature in the bathtub 50 is set temperature.

  Furthermore, when the temperature of the hot water (water) in the bathtub 50 exceeds the set temperature (set temperature range), the control circuit 13 causes the LED 12 to blink. Thereby, it can recognize easily that the hot water temperature in the bathtub 50 exceeds preset temperature. In addition, when making LED12 blink, the time interval of blinking can also be changed according to whether it falls below or exceeds the set temperature (set temperature range). For example, if the detected temperature falls below the set temperature (set temperature range), the LED 12 blinks at a long time interval, and if the detected temperature exceeds the set temperature (set temperature range), the LED 12 blinks at a short time interval. Can do. Thereby, it can be easily determined whether the hot water temperature is too low or too high.

  FIG. 5 is a block diagram illustrating a configuration of a control circuit 16 as a second example of the bath lid 10 according to the first embodiment. In the example of FIG. 5, unlike the example of FIG. 3, LEDs 121, 122, and 123 are provided instead of the LEDs 12.

  The LED 121 includes a white LED chip in the same manner as the LED 12. The LED 122 includes a red LED chip, and the LED 123 includes a blue LED chip. In addition, the luminescent color of LED is not limited to these, The LED chip of another luminescent color can also be provided. Also, the number of LEDs is not limited to three, and may be two or four or more.

  The configuration of the set temperature storage unit 165 and the comparison unit 166 is the same as the configuration of the set temperature storage unit 133 and the comparison unit 134 in FIG. The configuration of the switching elements 161, 162, and 163 is the same as that of the switching element 132 in FIG.

  When the detected temperature falls below the set temperature (set value) or falls below the set temperature range, the drive circuit 167 outputs a signal for turning on the switching element 161 to the switching element 161 and turns off the switching elements 162 and 163. Is output to the switching elements 162 and 163. As a result, only the blue LED 123 is lit. In this case, the LED 123 may be blinked.

  When the detected temperature is the set temperature (set value) or within the set temperature range, the drive circuit 167 outputs a signal for turning on the switching element 163 to the switching element 163, and switches the switching elements 161 and 162. A signal for turning off is output to the switching elements 161 and 162. Thereby, only the white LED 121 is lit.

  When the detected temperature exceeds the set temperature (set value) or exceeds the set temperature range, the drive circuit 167 outputs a signal for turning on the switching element 162 to the switching element 162 and turns off the switching elements 161 and 163. Is output to the switching elements 161 and 163. As a result, only the red LED 122 is lit. In this case, the LED 122 may be blinked.

  FIG. 6 is an explanatory diagram illustrating a second example of the operation of the bath lid 10 according to the first embodiment. 6A shows a case where hot water (water) in the bathtub 50 is poured, FIG. 6B shows a case where the temperature of the hot water is cooled, and shows an operation when the configuration illustrated in FIG. 5 is used. As shown in FIGS. 6A and 6B, when the temperature of the hot water (water) in the bathtub 50 is lower than the set temperature (set temperature range), the control circuit 16 turns on the blue LED 123. Thereby, it can be easily recognized that the hot water temperature in the bathtub 50 has not yet reached the set temperature, or that the hot water in the bathtub 50 has cooled.

  Next, when the temperature of the hot water (water) in the bathtub 50 is within the set temperature (set temperature range), the control circuit 13 turns on the white LED 121. Thereby, it can recognize easily that the hot water temperature in the bathtub 50 is set temperature.

  Furthermore, when the temperature of the hot water (water) in the bathtub 50 exceeds the set temperature (set temperature range), the control circuit 13 turns on the red LED 122. Thereby, it can recognize easily that the hot water temperature in the bathtub 50 exceeds preset temperature.

  As described above, in the present embodiment, the LED as the light emitting unit, the Seebeck element as the power supply unit that supplies power to the LED, and the LED emits light according to the temperature (hot water temperature) in the bathtub. Therefore, it is excellent in visibility, and the hot water temperature in the bathtub can be easily confirmed even when the bathroom is dark. Moreover, since the hot water temperature can be notified by the light emission of the LED, for example, the hot water temperature in the bathtub can be easily confirmed through the door of the bathroom without opening the bath lid or entering the bathroom.

  Moreover, since the bath lid of this embodiment is equipped with an LED, a power supply unit, a temperature sensor, etc., even if it is an existing bathtub, simply replacing the bath lid with the bath lid of this embodiment, The user can easily be notified of the temperature in the bathtub without performing a large-scale construction. Moreover, since it can implement | achieve only with a bath lid, special constructions, such as a bathroom or a bathtub, are unnecessary, and it can apply to various existing bathrooms or bathtubs. Further, by causing the bath lid to emit light, the effect of visually appealing is higher than when a part of the bathtub is caused to emit light, and the temperature in the bathtub can be determined at a glance without opening the bath lid.

  In addition, the bath lid of the present embodiment includes a temperature sensor that detects the temperature in the bathtub, and a control circuit that controls the light emission state of the LED according to the temperature detected by the temperature sensor. A change in temperature or hot water temperature can be accurately determined based on the light emission state. Moreover, it is not necessary to open the bath lid to check the hot water temperature.

  In addition, the bath lid of the present embodiment includes a set temperature storage unit that stores a set value or set range of temperature, and the control circuit determines whether or not the detected temperature is within the set value or set range. The LED is controlled to emit light in different light emission states. Different light emission states include continuous lighting or blinking, dimming, or toning. The set value or set range can be set as appropriate, and can be any temperature or temperature range between 38 ° C. and 46 ° C., for example. For example, if the detected hot water temperature in the bathtub is within a set value or a setting range, the control circuit turns on the LED, and if the detected hot water temperature is outside the set value or the setting range, the control circuit blinks the LED. Thereby, it can be easily determined whether the hot water temperature in the bathtub has risen too much or has been cooled too much.

  Alternatively, for example, if the detected hot water temperature in the bathtub is within the set value or the set range, the control circuit turns on the LED in white, and if the detected hot water temperature exceeds the set value or the set range, the LED turns red. When the detected hot water temperature falls below the set value or set range, the LED is lit in blue. Thereby, it can be easily determined whether the hot water temperature in the bathtub has risen too much or has been cooled too much.

  The control circuit controls dimming or blinking of the LED. When dimming the LED, for example, the brightness of the LED can be adjusted by controlling the current value flowing through the LED by PWM control of the switching element. In this case, the PWM ratio (duty ratio) may be set in accordance with a comparison result obtained by comparing the set temperature with the temperature detected by the temperature sensor. Thereby, the hot water temperature in a bathtub or the change of hot water temperature can be correctly discriminate | determined by the brightness of LED, or lighting or blinking. The control circuit controls the toning of the LEDs. Thereby, the hot water temperature in a bathtub or the change of hot water temperature can be correctly discriminate | determined with the luminescent color of LED.

  Moreover, in this Embodiment, the Seebeck element which supplies electric power according to the temperature difference of the front and back of a cover body is provided. That is, by making the high temperature side detected by the Seebeck element the bathtub side and the low temperature side the bathroom side, the LED can emit light using the hot water temperature in the bathtub, so a dry battery or a secondary battery is unnecessary. Also, no external power supply is required, and the operation (light emission) of the LED can be realized with a single bath lid.

  In this embodiment, by providing an LED as the light emitting unit, a light emitting unit with low power consumption and high luminance can be realized, and visibility can be improved. Further, it is possible to easily control the light emission state such as dimming and toning simply by controlling the current flowing through the LED.

  FIG. 7 is a schematic diagram illustrating another example of the configuration of the bath lid 10 according to the first embodiment. In the example of FIG. 7, the temperature sensor 15 is also provided on the surface 101 of the bath lid 10. Since the configuration of the temperature sensor 15 is the same as that of the temperature sensor 14, the description thereof is omitted.

  In the example of FIG. 7, the temperature sensors 14 and 15 are provided on the back surface 102 and the front surface 101 of the bath lid 10 (lid body 103), respectively, and the hot water temperature in the bathtub (bath temperature) and the bathroom temperature (bathroom atmosphere). Temperature) and the detected temperature (temperature information) is output to the control circuit 13.

  The control circuit 13 can detect the temperature difference between the front side and the back side of the bath lid 10 based on the temperature output from the temperature sensors 14 and 15. When the detected temperature difference exceeds a predetermined value, the control circuit 13 controls the light emission state of the LED 12 to notify that effect.

  FIG. 8 is an explanatory diagram illustrating a third example of the operation of the bath lid according to the first embodiment. The example of FIG. 8 shows an operation example when the configuration illustrated in FIG. 7 is used. As shown in FIG. 8, in the light emission state of the first example, if the temperature difference between the bathroom and the bathtub is not more than a predetermined value (for example, 10 ° C.), the LED 12 is continuously lit (white lighting), and the temperature difference is predetermined. If the value is exceeded, the LED 12 blinks (white blinking) to alert the user that the temperature difference between the bathroom temperature and the hot water temperature is large.

  Moreover, if the temperature difference between the bathroom and the bathtub is equal to or less than a predetermined value (for example, 10 ° C.) as in the light emission state of the second example, the LED 12 is continuously turned on (white lighting), and the temperature difference exceeds the predetermined value. If this happens, the red LED is lit continuously (may be blinking) to alert the user that the temperature difference between the temperature in the bathroom and the hot water temperature is large. The light emission state of the LED is not limited to the example of FIG. 8, and the dimming state is changed depending on whether the temperature difference between the bathroom and the bathtub is equal to or less than a predetermined value or exceeds the predetermined value. Alternatively, the color may be adjusted using other emission colors. When dimming the LED, for example, the brightness of the LED can be adjusted by controlling the current value flowing through the LED by PWM control of the switching element. In this case, the PWM ratio (duty ratio) may be set in accordance with a comparison result obtained by comparing the set temperature with the temperature detected by the temperature sensor.

  As a result, especially when the bathroom is cold, such as in winter, the possibility of the body being affected by a sudden temperature change (for example, heat shock) is notified before entering the bathroom. Occurrence can be prevented.

  FIG. 9 is a schematic diagram illustrating another example of the configuration of the bath lid 10 according to the first embodiment, and FIG. 10 is a circuit diagram illustrating an example of the configuration of the light emitting unit 18. As shown in FIG. 9, the bath lid 10 includes a Seebeck element 11, a light emitting unit 18, and the like. In addition, you may comprise LED12 illustrated in FIG. 2, the control circuit 13, the temperature sensor 14, etc. FIG.

  The Seebeck element 11 outputs a voltage corresponding to the temperature difference between the electrode 112 on the high temperature side (tub side) and the electrode 111 on the low temperature side (bathroom side) to the light emitting unit 18. That is, the Seebeck element 11 outputs a higher (larger) voltage as the temperature difference between the hot water temperature in the bathtub and the temperature in the bathroom (bathroom atmosphere temperature) is larger.

  As shown in FIG. 10, the light emitting unit 18 has a configuration in which a circuit in which a constant current diode 183 is connected to two red LEDs 181 connected in series and a circuit in which a constant current diode 183 is connected to one green LED 182 are connected in parallel. Have The forward voltage of the red LED 181 is about 2.2V, for example, and two red LEDs 181 are connected in series, so the total forward voltage of the red LED 181 is about 4.4V. The forward voltage of the green LED 182 is, for example, about 3.3V.

  When the voltage output from the Seebeck element 11 is low (that is, when the temperature difference between the hot water temperature in the bathtub and the temperature in the bathroom is small), current flows through the green LED 182 and the light emitting unit 18 emits green light. When the voltage output from the Seebeck element 11 becomes high (that is, when the temperature difference between the hot water temperature in the bathtub and the temperature in the bathroom becomes large), a current flows through the red LED 181 and the light emitting unit 18 turns red. Emits light. In this case, both the green LED 182 and the red LED 181 are lit, but the red light emission intensity can be increased by selecting the constant current diode 183 so that the current flowing through the red LED 181 increases. Note that a resistance element may be used instead of the constant current diode 183.

  As a result, especially when the bathroom is cold, such as in winter, the possibility of the body being affected by a sudden temperature change (for example, heat shock) is notified before entering the bathroom. Occurrence can be prevented.

(Embodiment 2)
FIG. 11 is a block diagram illustrating an example of a configuration of the bathtub monitoring system 100 according to the second embodiment. The bathtub monitoring system 100 includes a bath lid 20, a lighting device 60 as a notification device, and the like. The bathtub monitoring system 100 of Embodiment 2 detects the temperature in the bathtub with the bath lid 20, and transmits the detected temperature (temperature information) to the lighting device 60 as a notification device. The illuminating device 60 notifies the temperature (hot water temperature) etc. in a bathtub based on the received temperature information.

  As shown in FIG. 11, the bath lid 20 includes a Seebeck element 11, a temperature sensor 14, a communication unit 21 as a transmission unit, and the like. The configurations of the Seebeck element 11 and the temperature sensor 14 are the same as those in the example of FIG.

  The communication unit 21 has a wireless communication function such as wireless LAN, ZigBee, Bluetooth (registered trademark), infrared communication, and the like, and can operate with electric power supplied from the Seebeck element 11. The communication unit 21 communicates the temperature (temperature information) detected by the temperature sensor 14 to the communication unit 61 of the lighting device 60. Note that the temperature information transmission process by the communication unit 21 may be performed at an appropriate interval in order to suppress power consumption by the communication unit 21. In addition, what is necessary is just to determine an appropriate space | interval considering the temporal change of the hot water temperature in a bathtub.

  The illumination device 60 includes a communication unit 61 as a reception unit, a control unit 62 as a notification unit, a light source 63, and the like. The lighting device 60 is a lighting device installed in a bathroom, for example.

  The communication unit 61 receives the temperature information transmitted by the communication unit 21 of the bath lid 20 and outputs the received temperature information to the control unit 62.

  The light source 63 is a light source for illumination of the illuminating device 60. For example, a pseudo white LED module, a light bulb color LED module, or an LED module in which these are combined can be used.

  The control unit 62 controls the light emission state of the light source 63 based on the temperature information (hot water temperature in the bathtub) received by the communication unit 61. The control of the light emission state is, for example, performing continuous lighting, blinking, dimming, and toning lamp of the light source 63 according to the hot water temperature in the bathtub or a change in the hot water temperature.

  The bathroom monitoring system of the second embodiment includes a bath lid 20 and a lighting device 60 as a notification device that informs the state of the bathtub in which the bath lid 20 is used. The bath lid 20 detects the temperature in the bathtub. The temperature sensor 14 and the communication unit 21 that transmits temperature information about the temperature detected by the temperature sensor 14 to the lighting device 60 are provided. Moreover, the illuminating device 60 is provided with the communication part 61 which receives the temperature information which the bath cover 20 transmitted, and the control part 62 for alert | reporting the state of a bathtub based on the temperature information received by the communication part 61. FIG. Thereby, the hot water temperature in a bathtub or the change of a hot water temperature can be discriminate | determined without opening a bath lid. In addition, the bath lid 20 does not include an LED for notifying or notifying the hot water temperature, and the light source 63 of the lighting device 60 also has a function of notifying or notifying the hot water temperature together with the illumination. Power consumption can be suppressed.

  Further, since the notification device is the lighting device 60 having the light source 63, when the lighting device 60 is installed in the bathroom, the hot water in the bathtub is changed by changing the light emission state of the lighting in the bathroom based on the temperature information. Changes in temperature or hot water temperature can be easily confirmed. Further, since the hot water temperature can be notified by the light emission of the light source 63, the hot water temperature in the bathtub can be easily confirmed through the door of the bathroom, for example, without entering the bathroom.

  In the example of FIG. 11, the illumination device 60 is used as the notification device, but the present invention is not limited to this. For example, the notification device may be a switch for a lighting device installed on a wall or the like and having a light emitting unit (light source). In this case, the switch for the lighting device can include the communication unit 61 and the control unit 62 similarly to the lighting device 60. Thereby, the hot water temperature in a bathtub or the change of a hot water temperature can be confirmed before entering a bathroom by making the switch for lighting apparatuses outside a bathroom light-emit.

  Moreover, the display apparatus provided with the display part which displays a character or an image as an alerting | reporting apparatus may be sufficient. In this case, the display device can include the communication unit 61 and the control unit 62 as with the lighting device 60. Thereby, for example, the hot water temperature in the bathtub or a change in the hot water temperature can be confirmed before entering the bathroom with a monitor (display unit) in the living room.

  In addition, the notification device can be provided with an audio output unit such as a speaker (for example, a speaker). Also in this case, the communication unit 61 and the control unit 62 can be provided in the same manner as the lighting device 60. As a result, a notification sound or warning sound can be output from the audio output unit based on the temperature information, for example, confirming the hot water temperature in the bathtub or a change in the hot water temperature before entering the bathroom with a monitor speaker in the living room. can do. The hot water temperature in the bathtub or a change in the hot water temperature may be displayed and notified or warned by voice, or may be notified or warned only by display or only by voice.

  In the first and second embodiments described above, a human sensor may be provided near the bathroom, and when it is detected that a person is approaching the bathroom, the light emission state of the light emitting unit may be controlled. Thereby, the power consumption of a bath lid can be suppressed.

  According to the above-described embodiment, the user can be notified of the temperature in the bathtub by a bath lid or a lighting device, so that large-scale construction such as bathroom renovation is unnecessary. For example, when installing a device that displays temperature in a bathtub (bath kettle) or the like with respect to an existing bathtub facility, the construction of the bathtub is required. On the other hand, it can be easily realized only by exchanging the bath lid or the lighting device.

10, 20 Bath lid 101 Front surface 102 Back surface 103 Lid 11 Seebeck element 111, 112 Electrode 12, 121, 122, 123, 181, 182 LED
13, 16 Control circuit 131 Touch panel 132, 161, 162, 163 Switching element 133, 165 Setting temperature storage unit 134, 166 Comparison unit 135, 167 Drive circuit 14, 15 Temperature sensor 18 Light emitting unit 21, 61 Communication unit 50 Bathtub 60 Illumination Device 62 Control unit 63 Light source

Claims (13)

In a bath lid with a lid,
A light emitting unit provided on the surface of the lid, and having a light source;
A power supply unit for supplying power to the light emitting unit,
The light emitting unit
A bath lid characterized by being configured to emit light according to temperature. A temperature detector provided on the surface of the lid for detecting the temperature;
The bath lid according to claim 1, further comprising: a control unit that controls a light emitting state of the light emitting unit according to a temperature detected by the temperature detecting unit. A storage unit for storing a set value or set range of temperature;
The controller is
The light emitting unit is configured to control to emit light in different light emission states according to whether or not a temperature detected by the temperature detecting unit is within the set value or a setting range. 2. The bath lid according to 2. The controller is
The bath lid according to claim 2 or 3, wherein lighting, dimming or blinking of the light emitting unit is controlled. The light emitting unit
Equipped with light sources with different emission colors,
The controller is
The bath lid according to any one of claims 2 to 4, wherein the color adjustment of the light emitting unit is controlled. The temperature detection unit is further provided on the back surface of the lid,
The controller is
6. The light-emitting state of the light-emitting unit is controlled so as to notify when a temperature difference detected by each temperature detection unit exceeds a predetermined value. The bath lid according to any one of the preceding items. The power supply unit is
The electrode according to any one of claims 1 to 6, further comprising an electrode on each of the front and back surfaces of the lid, and a Seebeck element that supplies electric power according to a temperature difference between the front and back surfaces of the lid. The bath lid according to item. The power supply unit is
It has an electrode on each of the front and back surfaces of the lid, and includes a Seebeck element that outputs a voltage according to a temperature difference between the front and back surfaces of the lid,
The light emitting unit
2. The bath lid according to claim 1, wherein the bath lid is configured to emit light in different light emission states depending on a voltage output from the Seebeck element. The light emitting unit
The bath lid according to claim 1, further comprising an LED. In a bathtub monitoring system comprising a bath lid provided with a lid, and a notification device for notifying the state of the bathtub in which the bath lid is used,
The bath lid is
A temperature detector for detecting the temperature;
A transmitter that transmits temperature information about the temperature detected by the temperature detector to the notification device,
The notification device
A receiver for receiving the temperature information;
A bathtub monitoring system comprising: a notifying section that reports the state of the bathtub based on temperature information received by the receiving section. The notification device
With a light source,
The notification unit
The bathtub monitoring system according to claim 10, further comprising a control unit that controls a light emission state of the light source based on the temperature information. The notification device
A display unit for displaying characters or images;
The notification unit
The bathtub monitoring system according to claim 10, wherein the temperature information is displayed on the display unit. The notification device
With audio output,
The notification unit
The bathtub monitoring system according to claim 10, wherein a notification sound or a warning sound is output from the sound output unit based on the temperature information.

Images