JP6572432B2 - Bathroom heating dryer - Google Patents

Description

  The present invention relates to a bathroom heating dryer.

  A domestic bathroom heater / dryer installed on a ceiling surface of a household bathroom is provided with a heating unit (heat exchanger) for heating the air in the bathroom in the main body case (see, for example, Patent Document 1). . The bathroom heating dryer of Patent Document 1 includes a circulation fan that circulates the air in the bathroom and a ventilation fan that flows the air in the bathroom to the outside, and a plurality of drive modes depending on the combination of driving with the heating unit. have.

  In such a bathroom heater / dryer, a filter is detachably provided at a suction port for sucking air in the bathroom (see, for example, Patent Document 2). With such a configuration, dust in the bathroom can be removed.

JP 2014-105979 A JP 2002-102596 A

  By the way, in the bathroom heating dryer as described above, it is possible to remove dust in the filter by driving the circulation fan or the ventilation fan, but there is a possibility that clogging may occur as the driving time elapses. For this reason, for example, it is necessary to notify the maintenance time due to clogging. Therefore, for example, it is conceivable that the driving time of the bathroom heater / dryer (ventilation fan and circulation fan) is integrated, and when the accumulated time exceeds a predetermined time, the user is notified as a maintenance time.

  However, the bathroom heating dryer has a plurality of drive modes as described above, and the amount of dust adhering to the filter differs depending on the drive mode. Therefore, simple maintenance of the filter requires accurate filter maintenance. There is a possibility that the time cannot be notified.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a bathroom heater / dryer capable of more accurately notifying the maintenance time of a filter.

  In order to solve the above problems, a bathroom heating / drying machine includes a circulation fan for circulating air in the bathroom, a heating unit for heating the air circulated by the circulation fan, and at least air in the bathroom to the outside. A ventilation fan for discharging, a filter attached to a suction port for sucking air in the bathroom, and a control unit for implementing a plurality of driving modes by a combination of driving of the circulation fan, the heating unit and the ventilation fan, A notification unit for notifying the maintenance of the filter, and the control unit performs integration of driving time while operating in a driving mode in which the interior of the bathroom is in a negative pressure state, The notification unit notifies when the accumulated driving time exceeds a predetermined time.

  According to the bathroom heater / dryer of the present invention, the maintenance time of the filter can be notified more accurately.

It is a perspective view of the bathroom provided with the bathroom heating dryer in one embodiment. It is a perspective view of the bathroom heating dryer in the same as the above. It is explanatory drawing for demonstrating schematic structure of the bathroom heating dryer in the same as the above. It is a block diagram for demonstrating the electrical structure of the bathroom heating dryer in the same as the above. It is a front view of the operation part of the bathroom heating dryer in the same as the above.

  Hereinafter, an embodiment of a bathroom heating dryer will be described with reference to the drawings.

  As shown in FIG. 1, the bathroom heating / drying machine 10 of the present embodiment includes a main body part 11 and a ventilation part 31 that is connected to the main body part 11 and performs ventilation.

  As shown in FIG. 1, the main body 11 is provided on the ceiling surface in the bathroom B. Hot water is supplied to the main body 11 from the water heater C (see FIG. 3) via the circulation forward pipe 12a and returns to the water heater C via the circulation return pipe 12b.

  As shown in FIGS. 2 and 3, the main body 11 has a front panel 13 attached to a lower part of a substantially bottomed rectangular box-shaped main body case 12. In the main body 11, the main body case 12 is installed on the back of the ceiling of the bathroom B with the front panel 13 exposed in the bathroom B.

  The front panel 13 includes a suction port 13 a that sucks air in the bathroom B and an air supply port 13 b that sends out the air heated in the main body 11 into the bathroom B. The air supply port 13b is a louver capable of adjusting the direction in which air heated by an actuator (not shown) is sent out within a predetermined range. A filter 13c is detachably attached to the suction port 13a. The filter 13c is for removing dust flowing into the bathroom B.

  As shown in FIG. 3, the main body case 12 includes a heat exchanger 14 as a heating unit and a circulation fan 15.

  As shown in FIG. 3, the heat exchanger 14 is installed above the suction port 13a, and the heat exchanging coil 14a through which the hot water supplied from the water heater C circulates is reciprocated across multiple layers in the vertical direction. It is bent and arranged. The hot water supplied from the water heater C from one end side through the circulation forward pipe 12a flows into the heat exchange coil 14a, and returns to the water heater C side from the other end side through the circulation return pipe 12b. It has become.

  As shown in FIGS. 3 and 4, the circulation fan 15 is rotationally driven by a circulation motor 16. As the circulation motor 16 is driven to rotate, the circulation fan 15 is driven. As a result, air is sucked from the suction port 13a and air is sent into the bathroom B from the air supply port 13b.

  In addition, a thermal valve 17 is provided in a flow path between the circulation forward pipe 12a and the heat exchanger 14 (heat exchange coil 14a). The opening degree of the thermal valve 17 is adjusted, that is, the flow rate is adjusted, for example, by the control unit 18 (see FIG. 4).

  A coil temperature sensor 19 is provided in the main body case 12. The coil temperature sensor 19 measures (estimates) the approximate temperature of the heat exchanger 14 (heat exchange coil 14a) by measuring the temperature of the hot water in the flow path between the thermal valve 17 and the heat exchanger 14. ) Is possible.

  A suction temperature sensor 20 is provided in the main body case 12. The suction temperature sensor 20 is provided near and downstream of the suction port 13a, and measures the temperature of the air sucked through the suction port 13a. As the suction temperature sensor 20, a resistance temperature detector, a thermistor, or the like can be employed.

  The main body 11 has a damper 21 that switches the flow path. The damper 21 opens and closes the flow path between the main body part 11 and the ventilation part 31. That is, by setting the damper 21 in the closed state, the flow path between the main body part 11 and the ventilation part 31 is closed, and the outflow of air from the main body part 11 to the ventilation part 31 side is blocked. Further, by opening the damper 21, the flow path between the main body part 11 and the ventilation part 31 is opened, and the air can flow out from the main body part 11 to the ventilation part 31 side.

  As shown in FIG. 3, the ventilation unit 31 houses a ventilation fan 33 in a ventilation case 32. The ventilation case 32 is attached to the main body case 12. And the ventilation case 32 can flow in the air in the bathroom B from the main body 11 side when the damper 21 is in the open state. Moreover, the ventilation part 31 can inhale the air in the dressing room U and the air in the toilet T. FIG. For this reason, the bathroom heating / drying machine 10 of this embodiment can perform three-room ventilation of the bathroom B, the dressing room U, and the toilet T.

  As shown in FIGS. 3 and 4, the ventilation fan 33 accommodated in the ventilation case 32 is rotationally driven by a ventilation motor 34. That is, when the ventilation motor 34 is driven, the ventilation fan 33 is driven, and the bathroom B, the dressing room U, and the toilet T are ventilated. Here, the opening D1 is formed in the lower part of the door D between the bathroom B and the dressing room U. For this reason, since it will be in a negative pressure state by driving the ventilation fan 33, the air of the dressing room U will flow in into the bathroom B from the opening part D1.

  The bathroom heating / drying machine 10 according to the present embodiment has a plurality of modes depending on combinations of driving of the circulation fan 15, the ventilation fan 33, and the heat exchanger 14 (thermally operated valve 17).

  More specifically, as shown in FIG. 4, information on five drive modes of a heating mode, a ventilation mode, a drying mode, a cool air mode, and a 24-hour ventilation mode is stored in the memory 22 in advance. The circulation fan 15, the ventilation fan 33, and the heat exchanger 14 (thermal valve 17) are controlled based on the drive mode information stored in the memory 22.

  Here, each drive mode will be described below.

[Heating mode]
In the heating mode, the circulation fan 15 is driven, and the heat valve 17 is controlled to warm the air taken in by the heat exchanger 14. At this time, the damper 21 is in a closed state and the ventilation fan 33 is in a non-driven (stopped) state. Since the ventilation fan 33 is not driven, the inside of the bathroom B is not in a negative pressure state.

[Ventilation mode]
In the ventilation mode, the damper 21 is opened and the ventilation fan 33 is driven. At this time, the circulation fan is not driven and the heat valve 17 is closed, and the air is not heated by the heat exchanger 14. Incidentally, this ventilation mode corresponds to the first ventilation mode. Since the ventilation fan 33 is driven, the inside of the bathroom B is in a negative pressure state.

[Drying mode]
In the drying mode, the circulation fan 15 and the ventilation fan 33 are driven to control the heat valve to warm the air taken in by the heat exchanger. At this time, the damper 21 is opened. Since the ventilation fan 33 is driven, the inside of the bathroom B is in a negative pressure state.

[Cool wind mode]
In the cool breeze mode, the damper 21 is opened and the circulation fan 15 and the ventilation fan 33 are driven. Since the ventilation fan 33 is driven, the inside of the bathroom B is in a negative pressure state.

[24 hour ventilation mode]
In the 24-hour ventilation mode, the damper 21 is opened and only the ventilation fan 33 is driven. Incidentally, the 24-hour ventilation mode corresponds to the second ventilation mode. Since the ventilation fan 33 is driven, the inside of the bathroom B is in a negative pressure state.

  Each drive mode set as described above can be selected by the operation unit 41 that can be operated by the user.

  As shown in FIG.4 and FIG.5, the operation part 41 is provided in the dressing room U outside a bathroom, for example. The operation unit 41 includes various drive switches 42, a liquid crystal display unit 43 on which the driving state of the bathroom heating dryer 10 and the like are shown, and a notification unit 44.

  As shown in FIG. 5, the drive switch 42 includes a heating switch 42a for executing the heating mode, a ventilation switch 42b for executing the ventilation mode, a drying switch 42c for executing the drying mode, and a cool air mode. A cool air switch 42d for executing the 24-hour ventilation mode and a 24-hour ventilation switch 42e for executing the 24-hour ventilation mode. The drive switch 42 includes a wind direction switch 42f for changing the direction of the air supply port 13b, and a stop switch 42g for stopping the drive modes halfway.

  The notification unit 44 is a single light source, for example, to notify the user when the filter 13c is in a maintenance period.

  Next, the electrical configuration (electrical connection) of the bathroom heating / drying machine 10 of the present embodiment will be described.

  As shown in FIG. 4, the control unit 18 of the bathroom heater / dryer 10 includes a heat exchanger 14, a thermal valve 17, a coil temperature sensor 19, a suction temperature sensor 20, a damper 21, a circulation motor 16, and a ventilation motor. 34 is electrically connected. The control unit 18 performs drive control of the thermal valve 17 and the heat exchanger 14 based on various sensors 19 and 20.

  In the control unit 18, the memory 22 and the timer 23 are electrically connected. As described above, information on each drive mode is stored in the memory 22 in advance. The timer 23 measures time and is used to measure the time during driving in a driving mode (ventilation mode, drying mode, cool air mode, 24-hour ventilation mode) that is in a negative pressure state.

  The control unit 18 is connected to the operation unit 41. For this reason, the control part 18 lights the alerting | reporting part 44, when the drive time operated by the drive mode used as a negative pressure state exceeds predetermined time.

  The operation of the bathroom heating dryer 10 configured as described above will be described.

  In the bathroom heating / drying machine 10 of this embodiment, the drive switch 42 of the operation part 41 performs various drive control by the control part 18 based on operation. At this time, the control unit 18 operates the timer 23 to integrate the driving time during driving in the driving mode (ventilation mode, drying mode, cool air mode, 24-hour ventilation mode) that is in the negative pressure state. These drive times are stored in the memory 22, and the controller 18 integrates the drive times stored in the memory 22 every time the control unit 18 is driven in a drive mode that is in a negative pressure state. . Since the ventilation fan 33 is not driven during driving in the heating mode, the control unit 18 does not enter a negative pressure state and does not accumulate the driving time.

  Next, the effect of this embodiment will be described.

  (1) While operating in the drive mode in which the inside of the bathroom B is in a negative pressure state, the control unit 18 performs integration of the drive time, and the notification unit 44 detects that when the integrated drive time exceeds a predetermined time. Inform the effect. Here, in the case of the drive mode in which the negative pressure state is set, air containing dust flows from the opening D1 of the door D, which causes clogging of the filter 13c. For this reason, it is possible to notify the appropriate maintenance time of the filter 13c assuming that air containing dust flows in from the opening D1 of the door D by performing the integration of the driving time only in the driving mode that is in the negative pressure state. Is possible.

  (2) The controller 18 integrates the drive time in the ventilation mode, which is the first ventilation mode driven by the ventilation fan 33, the drying mode, the cool air mode, and the 24-hour ventilation mode, which is the second ventilation mode. Accordingly, by performing the integration of the drive time only in the drive mode in which the negative pressure state is established, it is possible to notify the appropriate maintenance time of the filter 13c assuming that air including dust flows in from the opening D1 of the door D. Is possible.

  In addition, you may change the said embodiment as follows.

  In the above embodiment, the driving time is accumulated in the ventilation mode, the drying mode, the cool air mode, and the 24-hour ventilation mode. However, if any mode is omitted, the driving time is not accumulated. .

  -Although not mentioned in particular in the said embodiment, you may employ | adopt the structure which changes the said predetermined time alert | reported by the alerting | reporting part 44 with the kind of said filter 13c with which the suction inlet 13a is mounted | worn, for example. That is, since the time until clogging differs depending on the type of the filter 13c, it is possible to notify the appropriate maintenance time of the filter 13c by changing the predetermined time depending on the type of the filter 13c.

  In the above embodiment, the notification unit 44 is provided in the operation unit 41. However, a configuration in which the notification unit 44 is provided in the main body unit 11 may be employed.

  -In above-mentioned embodiment, although it was set as the structure which alert | reports by lighting as the alerting | reporting part 44, it is not restricted to this. For example, you may employ | adopt the structure which displays on the liquid crystal display part 43, or alert | reports by a sound.

  In the above embodiment, the ventilation unit 31 and the main body unit 11 are adjacent to each other. However, the configuration is not limited thereto. For example, you may employ | adopt the structure which connects the main-body part 11 and the ventilation part 31 with a duct.

  In the above embodiment, the ventilation unit 31 is provided. However, a configuration in which the ventilation unit 31 is omitted may be employed.

  -Although it does not mention in particular in the said embodiment, you may employ | adopt the structure provided with the mist spraying apparatus which performs mist spraying in a bathroom, for example. The mist spraying method and its temperature may be changed depending on the specifications.

  In the above embodiment, one heat exchanger 14 is provided, but the number may be changed as appropriate. In particular, in the case of a configuration in which mist is sprayed as in the above modification, even if the temperature of the mist is increased to a predetermined value with only one heat exchanger, the temperature can be lowered when the mist is sent out from the air inlet 13b. Therefore, the significance of providing a plurality of heat exchangers is great. In particular, by providing it in the vicinity of the air supply port 13b, it is possible to send out from the air supply port 13b in a state where the temperature of the mist is increased to a predetermined value.

  -You may combine the said embodiment and each modification suitably.

  Next, technical ideas that can be grasped from the above-described embodiment and other examples will be additionally described below.

(Appendix 1) A circulation fan for circulating the air in the bathroom, a heating unit for heating the air circulated by the circulation fan, a ventilation fan for discharging at least the air in the bathroom to the outside, and the bathroom A filter attached to a suction port that sucks in air, a control unit that implements a plurality of drive modes by a combination of driving of the circulation fan, the heating unit, and the ventilation fan, and notification of maintenance of the filter An informing part,
The controller performs integration of driving time while operating in a driving mode in which the interior of the bathroom is in a negative pressure state,
The said notification part alert | reports when the said accumulated drive time exceeds predetermined time, The bathroom heating dryer characterized by the above-mentioned.

(Supplementary Note 2) A first ventilation mode in which the ventilation fan is driven, a drying mode in which the circulation fan, the ventilation fan, and the heating unit are driven, and the circulation fan and the ventilation fan are driven. A cool breeze mode, and a second ventilation mode in which the ventilation fan is driven for a longer period of time than the first ventilation mode,
The bathroom heater / dryer according to appendix 1, wherein the controller performs accumulation of driving time in the first ventilation mode, the drying mode, the cool air mode, and the second ventilation mode.

  (Additional remark 3) The said control part changes the said predetermined time notified by the said alerting | reporting part with the kind of said filter with which the said suction inlet is mounted | worn, The bathroom heating dryer of Additional remark 1 or 2 characterized by the above-mentioned.

  As described above, the bathroom heater / dryer according to the present invention can be applied to a ventilator that ventilates indoors in order to integrate the driving time while operating in a driving mode that is in a negative pressure state. is there.

10 Bathroom Heating Dryer 13a Suction Port 13c Filter 14 Heat Exchanger (Heating Unit)
15 Circulating fan 18 Control unit 33 Ventilation fan 44 Notification unit

Claims (3)

A circulation fan for circulating the air in the bathroom, a heating unit for heating the air circulated by the circulation fan, a ventilation fan for discharging the air in the bathroom to the outside, and the air in the bathroom A filter attached to the suction port, a control unit that implements a plurality of drive modes by a combination of driving of the circulation fan, the heating unit, and the ventilation fan, a notification unit that notifies the maintenance of the filter, The control unit performs integration of driving time while operating in a driving mode in which the interior of the bathroom is in a negative pressure state, and the notifying unit exceeds the predetermined driving time. A bathroom heater / dryer characterized by notifying. A first ventilation mode in which the ventilation fan is driven; a drying mode in which the circulation fan, the ventilation fan and the heating unit are driven; a cool air mode in which the circulation fan and the ventilation fan are driven; And a second ventilation mode in which the ventilation fan is driven for a longer period of time than the first ventilation mode, and the control unit is configured to perform the first ventilation mode, the drying mode, the cool air mode, and the second ventilation. The bathroom heating dryer according to claim 1, wherein the driving time is accumulated in the mode. The bathroom heating / drying machine according to claim 1 or 2, wherein the control unit changes the predetermined time notified by the notification unit according to a type of the filter attached to the suction port.

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