JP4593527B2 - Bathroom heater with mist sauna function - Google Patents

Description

  The present invention includes a heating air passage, a heating fan that circulates bathroom air through the heating air passage, and air flowing through the heating air passage in a heater main body installed on the ceiling of the bathroom. It is a bathroom heater provided with the heating means to heat, Comprising: It is related with the thing with a mist sauna function.

  Conventionally, in this type of bathroom heater with a mist sauna function, generally, a mist nozzle is installed on the lower surface of the main body of the heater, and the air heated by the heating means is opened downward at the downstream end of the ventilation passage for heating. Air is blown into the bathroom as warm air from the air outlet for heating, and hot water is sprayed into the bathroom from the mist nozzle so that the bathroom is in a hot and humid mist sauna.

  By the way, the particle size of the mist sprayed from the mist nozzle is not constant, and a water droplet mist having a large particle size is also sprayed from the mist nozzle. In the above conventional example, since warm water is directly sprayed from the mist nozzle into the bathroom, the water droplet mist having a large particle size may hit the bather and give an uncomfortable feeling.

  In order to eliminate such problems, conventionally, as a bathroom heater with a mist function, in addition to a heating air passage, a heating fan, and heating means, a mist air passage and a mist air passage are provided in the heater body. A mist fan that circulates the air in the bathroom and a mist nozzle that sprays hot water in the mist ventilation path are installed, and air containing mist is discharged from the mist outlet at the downstream end of the mist ventilation path into the bathroom. Japanese Patent Application Laid-Open No. H10-228561 is known that blows air.

  In addition, in the thing of patent document 1, the mist sprayed from a mist nozzle is collided with the fan for mist, and mist is refined | miniaturized, but refinement | miniaturization of the mist by the fan for mist is indispensable. Absent. That is, if the mist is sprayed in the mist ventilation path, the mist having a large particle diameter cannot be able to ride on the airflow in the mist ventilation path and is collected by being attached to the wall surface of the mist ventilation path. Therefore, even if the mist is not refined by the mist fan, the mist in the air blown into the bathroom from the mist outlet is limited to those having a small particle size, and the water droplet mist hits the bather. Can be prevented.

By the way, in the thing of patent document 1, the blower outlet for mist is made to adjoin the blower outlet for heating, and is opened downward. As a result, the following problems occur. That is, the wall surface of the mist ventilation path becomes wet due to condensation of the mist, and the condensed water falls as water droplets into the bathroom from the mist outlet opening downward. In addition, a part of the mist blown out from the mist blowout port gets on the warm air blown out from the heating blowout port adjacent to the mist blowout port, but the amount is small, and the mist is moved into the bathroom. In order to achieve this, it is necessary to increase the blowing capacity of the mist fan. Therefore, it becomes difficult to increase the size of the mist fan and make the bathroom heater compact. In addition, when the air blowing capacity of the mist fan is increased, the air flow in the air passage for mist becomes stronger, and when the mist is not refined by the mist fan, the mist with a relatively large particle size is carried in the bathroom. Will be blown out.
JP 2006-25966 A

  In view of the above points, the present invention prevents mist from falling from the mist outlet, and allows the mist to be distributed in the bathroom without increasing the blowing capacity of the mist fan. The problem is to provide a bathroom heater with a mist sauna function.

In order to solve the above-mentioned problems, the present invention provides a heating fan that circulates the air in the bathroom via the heating ventilation path and the heating ventilation path in the heater body installed on the ceiling of the bathroom, A heating unit for heating the air flowing through the heating air passage, wherein a heating outlet at the downstream end of the heating air passage opens downward into the bathroom, and the main body of the heater within a mist ventilation passage, and the mist fan for circulating the air in the bathroom through the mist ventilation passage, in which a mist nozzle for spraying hot water in mist ventilation passage is attached, mist The side wall portion on one side of the duct constituting the ventilation path is located immediately below the heating outlet, and the mist outlet at the downstream end of the mist ventilation path is on the upper side of the side wall. It opens sideways toward the right under portion of the mouth Characterized in that it is urchin formed.

  According to the present invention, even if mist is condensed on the wall surface of the mist ventilation path, the mist outlet is opened sideways, so that the condensed water does not fall as water droplets from the mist outlet. . Furthermore, the mist from the mist outlet is mixed with the warm air from the outlet for heating just below the heating outlet. For this reason, even if the air blowing capacity of the mist fan is not increased, the mist gets on the warm air from the air outlet for heating and surely reaches the bathroom. Therefore, it is possible to reduce the size of the bathroom heater by reducing the size of the mist fan. Further, since it is not necessary to increase the air blowing capacity of the mist fan, it is possible to prevent the airflow in the mist ventilation path from becoming too strong and blowing out mist having a relatively large particle size into the bathroom.

  If mist is blown from the mist outlet without air being blown from the heating outlet, the mist is condensed around the heating outlet and falls into the bathroom as water droplets. . In order to prevent this, in the present invention, it is desirable to provide means for prohibiting spraying of hot water from the mist nozzle unless rotation of the heating fan is detected.

  By the way, since dew condensation water accumulates in the mist ventilation path, it is desirable to provide a drainage path for draining this water. In this case, if a drainage pump is installed in the drainage channel, even if the drainage channel is arranged so as to get over obstacles such as beams on the back of the ceiling, the water in the mist ventilation channel is lifted by the head of the drainage pump. Can drain. Therefore, drainage pipe construction is easy and advantageous.

  1 and 2 show a bathroom heater with a mist sauna function according to an embodiment of the present invention. The bathroom heater includes a box-shaped heater body 1 installed on the ceiling of the bathroom. In the heater main body 1, an air inflow chamber 4 communicating with the inside of the bathroom via a suction port 3 formed in a lower cover 2 provided on the lower surface of the heater main body 1, and a heating ventilation communicating with the inflow chamber 4 Road 5 is provided. At the downstream end of the ventilation passage 5 for heating, there is provided a heating outlet 6 that opens downward into the bathroom, and a variable louver 6a is attached to the outlet 6.

  A heating fan 7 is interposed in the heating air passage 5. By the rotation of the heating fan 7, the air in the bathroom is sucked into the heating air passage 5 from the suction port 3 through the air inflow chamber 4, and blown out from the heating outlet 6 into the bathroom. That is, the air in the bathroom is circulated through the ventilation passage 5 for heating.

  In addition, in the communicating portion with the air inflow chamber 4 on the upstream side of the heating air passage 5, a radiator as a heating means for heating the air with heat of a heat medium (water, antifreeze liquid, etc.) supplied from a heat source device (not shown). 8 is provided. When the heating medium is supplied to the radiator 8 and the heating fan 7 is operated, the air in the bathroom is sucked from the inlet 3 and heated by the radiator 8, and becomes hot air from the outlet 6 for heating. To be blown. Moreover, the blowing direction of the warm air is appropriately changed by the variable louver 6a.

  In the heater body 1, there is further provided a mist ventilation passage 9 that is located below the heating ventilation passage 5 and communicates with the air inflow chamber 4. The mist ventilation path 9 is configured by a box-shaped duct, and a side wall portion 9 a on one side of the duct is located on a side immediately below the heating outlet 6. And the mist blower outlet 10 of the downstream end of the mist ventilation path 9 is opened in the upper part of this side wall part 9a. Thus, the mist outlet 10 opens laterally toward the lower part of the heating outlet 6. In addition, a mist fan 11 is provided at a communicating portion with the air inflow chamber 4 on the upstream side of the mist air passage 9. The rotation of the mist fan 11 causes the bathroom air to circulate not only through the heating ventilation path 5 but also through the mist ventilation path 9.

  A mist nozzle 12 is mounted on the upper wall surface of the mist air passage 9. A mist valve 14 and a liquid heat exchanger (not shown) are interposed in the water supply passage 13 connected to the mist nozzle 12. And the water which flows into the water supply path 13 is heated by supplying the heat medium from a heat source machine to a liquid heat exchanger, and warm water sprays in the mist ventilation path 9 from the mist nozzle 12 by opening the mist valve 14. To be. A hot water temperature sensor 15 is attached to the water supply path 13.

  The mist sprayed from the mist nozzle 12 into the mist air passage 9 is blown out from the mist outlet 10 on the air current generated in the mist air passage 9 by the rotation of the mist fan 11. Here, the water droplet-like mist having a large particle diameter does not survive the air flow, but is collected by being attached to the wall surface (mainly the bottom wall surface 9b) of the mist ventilation path 9. Accordingly, the mist blown out from the mist outlet 10 is limited to those having a small particle diameter. Then, the mist blown out from the mist blowout port 10 is mixed in the hot air blown out from the heating blowout port 6 immediately below the heating blowout port 6. Therefore, even if the blowing capacity of the mist fan 11 is not increased, the mist rides on the warm air from the heating outlet 6 and reliably reaches the bathroom.

  Here, if the air blowing capacity of the mist fan 11 is increased, the airflow in the mist air passage 9 becomes too strong, and even mist having a relatively large particle size is blown out from the mist outlet 6. On the other hand, in this embodiment, it is not necessary to increase the blowing capacity of the mist fan 11 in order to spread the mist in the bathroom. Therefore, the blowing capacity of the mist fan 11 can be made relatively low so that mist having a large particle diameter is not blown into the bathroom. Therefore, it is possible to surely prevent the bather from being uncomfortable by hitting a mist having a large particle diameter. Furthermore, the mist fan 11 can be downsized, and the bathroom heater can be downsized.

  Further, the wall surface of the mist air passage 9 becomes wet due to condensation of the mist, and when the mist outlet 10 is opened downward, the condensed water becomes water droplets from the mist outlet 10 into the bathroom. Fall. On the other hand, in this embodiment, since the mist outlet 10 is opened sideways, the drop of water from the outlet 10 is also prevented.

  In the mist ventilation path 9, water condensed on the wall surface is accumulated. Therefore, in this embodiment, in order to prevent water in the mist air passage 9 from overflowing from the side wall 9a on the mist outlet 10 side and falling into the bathroom, the water has accumulated in the mist air passage 9. A drainage channel 16 for draining water is provided. A drainage pump 17 is interposed in the drainage channel 16. According to this, even if the drainage channel 16 is disposed so as to get over obstacles such as beams on the back of the ceiling, the water in the mist ventilation channel 9 can be drained by the head of the drainage pump 17. Therefore, the piping work of the drainage channel 16 becomes easy.

  The drainage channel 16 is connected to the lower end of the side wall 9c opposite to the mist outlet 10 of the mist ventilation channel 9. The bottom wall surface 9 b of the mist air passage 9 is provided with a downward slope toward the side wall portion 9 c so that condensed water is collected at the connection portion of the drainage channel 16.

  The heating fan 7, mist fan 11, mist valve 14 and drain pump 17 are controlled by a controller 18 for a bathroom heater. A remote controller (not shown) and a controller for a heat source machine are connected to the controller 18 so that they can communicate with each other. The controller 18 executes mist operation control when a mist switch provided in the remote controller is turned on. Hereinafter, the mist operation control will be described with reference to FIG.

  In the mist operation control, first, in step S1, an operation command is sent to the heat source device, and the heat medium heated by the heat source device is supplied to the radiator 8 and the liquid heat exchanger interposed in the water supply path 13. Next, after the heating fan 7 is started in step S2, it is determined whether or not the rotation of the heating fan 7 is detected in step S3.

  When the rotation of the heating fan 7 is detected, it is determined in step S4 whether or not the detected temperature T of the hot water temperature sensor 15 is equal to or higher than a predetermined preheating completion temperature YT (for example, 60 ° C.). When T ≧ YT, the mist fan 11 and the drain pump 17 are activated in step S5, and the mist valve 14 is opened to start spraying hot water from the mist nozzle 12.

  Next, it is determined whether or not an operation stop command has been issued in step S6. The operation stop command is issued when the mist switch is turned off or when a predetermined mist operation time has elapsed since the mist switch was turned on. When an operation stop command is issued, an operation stop command is sent to the heat source unit in step S7, the heating fan 7, the mist fan 11 and the drain pump 17 are stopped, and the mist valve 14 is closed. End the mist operation. If it is determined in step S3 that the heating fan 7 is not rotating, error display is performed in step S8, and then the process proceeds to step S7.

  Here, when mist is blown out from the mist outlet 10 in a state where air is not blown out from the heating outlet 6, mist is condensed around the heating outlet 6 to form water droplets in the bathroom. It will fall. On the other hand, in this embodiment, spraying of hot water from the mist nozzle 12 is prohibited unless rotation of the heating fan 7 is detected by the process in step S3. Therefore, it is prevented that mist is blown out from the mist blowing port 10 in a state where air is not blown out from the heating blowing port 6, and the above-mentioned problems do not occur.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above-described embodiment, the radiator 8 is used as a heating unit that heats the air flowing through the heating ventilation path 5, but the heating unit may be configured by an electric heater. In the above embodiment, hot water heated by the liquid heat exchanger is supplied to the mist nozzle 12, but hot water from a water heater may be supplied to the mist nozzle 12.

The perspective view seen from the slanting lower part of the bathroom heater of embodiment of this invention. Sectional drawing cut | disconnected by the II-II line | wire of FIG. The flowchart which shows the content of the mist operation control performed with the bathroom heater of embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Heating machine main body, 5 ... Heating ventilation path, 6 ... Heating outlet, 7 ... Heating fan, 8 ... Radiator (heating means), 9 ... Mist ventilation path, 10 ... Mist outlet, 11 Mist fan, 12 mist nozzle, 16 drainage channel, 17 drainage pump, 18 controller.

Claims (3)

In the main body of the heater installed on the ceiling of the bathroom, a heating ventilation path, a heating fan for circulating the air in the bathroom via the heating ventilation path, and a heating means for heating the air flowing through the heating ventilation path A heating air outlet at the downstream end of the heating air passage that opens downward into the bathroom, and the mist air passage and the mist air passage in the heater body. In what is provided with a mist fan that circulates the air of the bathroom through the road and a mist nozzle that sprays hot water in the ventilation passage for mist,
The side wall on one side of the duct that forms the mist ventilation path is located on the side immediately below the heating outlet, and the mist outlet on the downstream end of the mist ventilation path is heated above this side wall. mist sauna function bathroom heater, wherein Rukoto formed so as to open laterally towards the immediately below the use outlet.   The bathroom heater with a mist sauna function according to claim 1, further comprising means for prohibiting spraying of hot water from the mist nozzle unless rotation of the heating fan is detected.   The bathroom heater with a mist sauna function according to claim 1 or 2, further comprising a drainage channel for draining water accumulated in the mist ventilation channel, wherein a drainage pump is interposed in the drainage channel.

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