JP2006071142A - Bathroom heating device with mist sauna function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent damage to a house due to water leaking from a mist unit box. <P>SOLUTION: The bathroom heating device with mist sauna function comprises a heater body 1 which is provided with a circulation fan 60 and an air conditioning heat exchanger 56 using heat medium from a heat source machine 82 for heating air flowing with the circulation fan 60, a liquid-liquid heat exchanger 11 using heat medium for heating water supplied from a water supply passage 12, and a mist nozzle 13 for misting a bathroom 10 with hot water heated by the liquid-liquid heat exchanger 11. The mist unit box 3 storing at least the liquid-liquid heat exchanger 11 is mounted on a heater body box 1a, and a drain through-part 5 is opened in a bottom 3a of the mist unit box 3 so that water W leaking from the mist unit box 3 flows down into the bathroom 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bathroom heating device with a mist sauna function, and more particularly to a technique that can quickly stop damage to a house due to leaked water when a water leak occurs in a mist unit box.

  Conventionally, in order to realize a mist sauna, water is heated, and a small amount of hot water is sprayed in a mist form from a mist nozzle and heated with warm air, so that a mist sauna bath can be made in the bathroom. There is.

  As an example, a mist unit box contains a hot water circuit, a hot water branch circuit branched from the hot water circuit, and a liquid-liquid heat exchanger connected to the hot water branch circuit, respectively. Hot water is supplied to the heat exchanger for air conditioning in the heater box through the hot water circuit, and the bathroom is heated. On the other hand, hot water is distributed and supplied from the hot water branch circuit to the liquid-liquid heat exchanger. A bathroom heating device with a mist sauna function that increases the spraying temperature is known (see, for example, Patent Document 1).

  By the way, the pipe connection around the water in the mist unit box is due to construction work, but due to construction failure, water leakage may occur from the connection point, or water leakage due to destruction of the liquid-liquid heat exchanger may occur. There is. In this case, since the mist unit box is arranged behind the ceiling, it is difficult for the user to notice the water leak. If this is left unattended, damage to the house due to the leaked water occurs.

  Therefore, in the conventional example shown in Patent Document 1, a water leak sensor is arranged in the mist unit box, and when a water leak is detected, an alarm lamp is lit to warn the user. Furthermore, an overflow pipe communicating with the inside of the bathroom is attached to the side wall of the mist unit box so that the leaked water in the mist unit box flows into the bathroom by the overflow. In this conventional example, the accumulated water that does not overflow is the mist unit box. Therefore, if the mist operation is not performed for a long period of time, germs may grow on the accumulated water or it may corrode and generate mold. There is a risk of falling into the bathroom due to overflow, and there is a problem that it is unsanitary.

  Moreover, in the conventional example, an overflow pipe leading to the inside of the bathroom is provided on the side wall of the mist unit box, so that moisture in the bathroom enters the mist unit box from the overflow pipe. For this reason, in the case where the water leak sensor is configured as an electrode type, both terminals of the water leak sensor are short-circuited due to the influence of moisture and may malfunction. Furthermore, there is a problem that the moisture that has entered the mist unit box also enters the back of the ceiling and causes the building materials to rot.

In addition, in the conventional example, in addition to the liquid-liquid heat exchanger and the hot water branch circuit, a hot water circuit connected to the heat exchanger for collecting air conditioning is housed in the mist unit box. In other words, the hot water from the water heater is a system that once supplies the hot water circulation path in the mist unit box and then supplies the hot water to the liquid-liquid heat exchanger through the hot water branch circulation path. There is also a problem that the number of the metal mist unit boxes increases and the weight increases.
JP 2003-336875 A

  The present invention has been invented in view of the above-described conventional problems, and can quickly prevent damage to the house due to leaked water when a leak occurs in the mist unit box. Although it is an object to provide a bathroom heating device with a mist sauna function that can be discharged and enjoy a mist sauna bath with peace of mind, it also has a structure that opens a drainage penetration part communicating with the inside of the bathroom in the mist unit box An object of the present invention is to provide a bathroom heating device with a mist sauna function capable of realizing water leak detection without being affected by the humidity of the bathroom.

  In order to solve the above-mentioned problems, the present invention provides a heating fan body 1 with a circulation fan 60 and an air conditioning heat exchanger 56 that heats the air ventilated by the circulation fan 60 with a heat medium from a heat source unit 82. A liquid-liquid heat exchanger 11 that heats the water supplied from the water supply channel 12 with the heat medium and the hot water heated by the liquid-liquid heat exchanger 11 are sprayed in a mist form in the bathroom 10. A bathroom heating device with a mist sauna function provided with a mist nozzle 13 that includes a mist unit box 3 that houses at least the liquid-liquid heat exchanger 11 attached to a heater body box 1a. 3 is provided with a water drainage penetrating portion 5 for allowing the leaked water W to flow into the bathroom 10 when water leakage occurs in the mist unit box 3.

  By adopting such a configuration, for example, water leakage due to breakage of the liquid-liquid heat exchanger 11 housed in the mist unit box 3 or water leakage from a pipe connection place around the water due to poor construction occurs. Even in this case, the leaked water W flows down into the bathroom 10 through the drainage through portion 5 provided in the bottom 3 a of the mist unit box 3. Therefore, there is no fear that the leaked water W leaks to the back of the ceiling where the present apparatus is installed, and damage to the house can be quickly stopped. And since the penetration part 5 for draining is provided in the bottom part 3a of the mist unit box 3, the leak water W comes to be drained in the bathroom 10, and can enjoy a sanitary mist sauna bath in comfort.

  The mist unit box 3 is preferably mounted on the heater main body box 1a. In this case, the existing gap such as the suction grille of the heater main body box 1a is used to leak the leaked water W flowing from the drainage through portion 5. It becomes possible to drain into the bathroom 10 using Moreover, by attaching the mist unit box 3 on the heater body box 1a, the whole can be reduced in size, and the mist sauna function can be easily performed without changing the basic design of each part of the heater body 1. It can be added.

  In addition, it is preferable to provide a sealing member 7 for sealing the drainage through portion 5 when water leakage does not occur in the mist unit box 3. In this case, moisture in the bathroom 10 drains water. As a result, it is possible to prevent the house from being penetrated into the back of the ceiling through the mist unit box 3 from the penetrating part 5 for moisture, and it is possible to surely prevent the damage to the house due to moisture, and the intrusion of moisture into the mist unit box 3 Therefore, even when the water leak sensor 4 installed in the mist unit box 3 is configured as an electrode, malfunction of the water leak sensor 4 due to moisture can be reliably prevented.

  The sealing member 7 bends in a direction to open the drainage through portion 5 when receiving the weight of the leaked water W, and bends in a direction to close the drainage through portion 5 when the weight is not received. It is preferable that the flap valve 8 has a possible elasticity, and in this case, the flap valve 8 performs an opening / closing operation using the weight of the leakage water W, so that power for driving the opening / closing of the flap valve 8 becomes unnecessary. The structure of the sealing member 7 can be simplified.

  In addition, a water leak sensor 4 is arranged in the mist unit box 3, and when the water leak is detected by the water leak sensor 4, a control means for sending a signal for stopping the operation of the apparatus, and a notification means for notifying an abnormality. In this case, it is preferable to automatically stop the operation of the heat source unit 82 and the like simultaneously with the abnormality notification, so that water leakage does not continue, and damage to the building materials of the house due to the leaked water W can be stopped quickly. In addition, it is possible to promptly notify the user of a water leak by performing the notification.

  Further, it is preferable to provide a water receiving member 9 for introducing the leaked water W generated at the pipe connection location outside the mist unit box 3 into the mist unit box 3. By utilizing the through-hole 5 for extraction, it becomes possible to sufficiently cope with water leakage at the pipe connection location outside the mist unit box 3.

  In the present invention, when water leakage occurs in the mist unit box using the drainage penetrating portion provided at the bottom of the mist unit box, the leaked water can be discharged into the bathroom, so that the water leaked to the house Damage can be prevented and mist sauna baths can be enjoyed with peace of mind.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The bathroom heating device with a mist sauna function of the present embodiment is installed on the ceiling of the bathroom 10 as shown in FIG. A heat source device 82 with a hot water supply function is installed outside the bathroom 10, and a remote control operation unit 81 is installed on the wall inside the bathroom 10. In the figure, 80 is a ventilation duct. The remote control operation unit 81 includes, for example, a mist sauna switch, a temperature switch for setting a target set temperature (for example, 38 ° C. to 46 ° C.), a bathroom heating operation switch, a ventilation operation switch, a bathroom drying switch, a cool air operation switch, A stop switch or the like is provided. In addition, the remote control operation part 81 may be installed in the dressing room side other than being installed in the bathroom 10, or may be a wireless remote controller.

  As shown in FIG. 1, the bathroom heating device with a mist sauna function includes a heater body 1 that supplies hot air into the bathroom 10 and a mist spray unit 2 that sprays hot water in a mist form. It is separated into a resin heater main body box 1a for storing the main body 1 and a metal mist unit box 3 for storing at least the liquid-liquid heat exchanger 11 of the mist spraying unit 2, and above the heater main body box 1a. Are connected to each other with the mist unit box 3 mounted thereon. In FIG. 1A, 54 is a movable louver for the hot air outlet, 80 is a ventilation duct, and 85 is a ventilation fan.

  As shown in FIG. 5, a bathroom temperature sensor 16 composed of a thermistor or the like for detecting the bathroom temperature is arranged in the vicinity of the suction grille 57 (FIG. 1 (a)). ing. In addition, a circulation fan 60 that sucks air in the bathroom 10 and circulates it again in the bathroom 10 is arranged in the circulation ventilation path 185 in the heater main body 1, and an air-conditioning heat exchanger for heating the air. 56 is arranged. In this example, the heating medium circulation path 29 is housed in the heater body box 1a, and the forward path 29a of the heating medium circulation path 29 is connected to the heating medium discharge side of the heat source unit 82 (FIG. 6). The return path 29 b of the heat medium circulation path 29 is connected to the recovery side of the heat source device 82. The middle of the heat medium circulation path 29 is bent in a meandering manner to constitute a primary side water path of the heat exchanger 56 for air conditioning.

  The forward path 29a of the heat medium circulation path 29 includes a heat valve 28 for adjusting the supply amount of the heat medium to the air conditioning heat exchanger 56, and a thermistor that detects the temperature of the heat medium. A medium temperature sensor 30 is arranged. The heat medium temperature detected by the heat medium temperature sensor 30 is a hot water temperature for heating the air conditioner heat exchanger 56 and the liquid-liquid heat exchanger 11.

  On the other hand, the mist spraying unit 2 sprays liquid-liquid heat exchanger 11 for heating water supplied from the water supply channel 12 and hot water heated by the liquid-liquid heat exchanger 11 in a mist form. (For example, two) mist nozzles 13 and nozzle opening / closing valves 15 for controlling the opening and closing of the mist nozzles 13 are provided. In this example, the mist nozzle 13, the nozzle opening / closing valve 15, and the mist temperature sensor 18 are accommodated in the heater body box 1a.

  Here, in the mist unit box 3, the water supply path 12 connected to the water pipe 51 (FIG. 6) through the water supply joint 26 is disposed. A water supply valve 17 including a strainer 25 and an electromagnetic valve is provided on the upstream side of the water supply path 12, and a nozzle opening / closing valve 15 is provided on the downstream side of the water supply path 12, and liquid is provided between the water supply valve 17 and the nozzle opening / closing valve 15. A liquid heat exchanger 11 is arranged; The liquid-liquid heat exchanger 11 of this example is composed of, for example, a plate heat exchanger in which a plurality of corrugated plate-like heat transfer plates are stacked at intervals. The primary side water channel of the liquid-liquid heat exchanger 11 is connected to the heat medium branch circulation channel 23, and the secondary side water channel is connected to the water supply channel 12. Upstream of the heat medium branch circulation path 23 is a heat medium circulation path 29 on the front side of the heat valve 28 via a water proportional valve 27 that can adjust the supply amount of the heat medium in the heater body box 1a. It is branched and connected to the forward path 29 a, and the downstream of the heat medium branch circulation path 23 joins the return path 29 b of the heat medium circulation path 29 in the heater body box 1 a via the return pipe 20.

  Further, a drainage channel 24 branches from between the liquid-liquid heat exchanger 11 and the nozzle opening / closing valve 15 in the water supply channel 12. The downstream of the drainage channel 24 is connected to the drainage joint 50 side via a drainage valve 19 made of an electromagnetic valve. For example, immediately after the instruction to start the mist sauna operation, the drain valve 19 is opened with the nozzle opening / closing valve 15 closed, so that the water accumulated in the liquid-liquid heat exchanger 11 and the water supply path 12 passes through the drain path 24. It becomes possible to drain into the external drain pipe 52 (FIG. 6). Further, the drainage channel 24 communicates with the air inflow channel 22 via the vacuum breaker 21, and when the drainage channel 24 is brought into an atmospheric pressure state during drainage, dirty water drained from the drainage valve 19 is drained. Prevents backflow.

  The detection signals from the bathroom temperature sensor 16, the heat medium temperature sensor 30, and the mist temperature sensor 18 are sent to a control unit (not shown) constituted by a microcomputer, and the control unit is instructed from a remote control operation unit 81. Based on the remote control signal, the water proportional valve 27, the thermal valve 28, the water supply valve 17, and the nozzle open / close valve 15 are controlled to open and close to perform mist spraying and to maintain the bathroom temperature at the set temperature.

  Further, a water leak sensor 4 is disposed inside the mist unit box 3. The water leak sensor 4 functions as a security device that constantly monitors for water leaks in the mist unit box 3 and issues an alarm to the user when a water leak is detected. 2 and 3 show an example of the mist spray unit 2 and the mist unit box 3. Arrows a and b in FIG. 2A indicate the flow direction of water in the water supply channel 12.

  Here, in the present invention, as shown in FIG. 1 (b), at the bottom 3 a of the mist unit box 3, a drainage penetration part 5 for dropping the leaked water W into the bathroom 10 is provided. . The position of the drainage penetrating portion 5 is a position brought close to the corner portion of the bottom portion 3a of the mist unit box 3 as shown in FIG. In addition, four opening holes 53a-53d other than the drainage penetration part 5 of FIG. 3A are the hole for piping of the water supply path 12 leading to the mist nozzle 13, the return side and the forward side of the liquid-liquid heat exchanger 11. Are respectively used as a piping hole and a piping hole of the atmospheric inflow passage 22 leading to the vacuum breaker 21.

  The drainage penetration part 5 is provided with a sealing member 7 for sealing the drainage penetration part 5 when a water leak does not occur. As shown in FIG. 4, the sealing member 7 of this example bends in the direction of opening the drainage penetration part 5 when receiving the weight of the leaking water W, and when the weight is no longer received, the drainage penetration. The flap valve 8 has elasticity that can be bent in the direction of closing the portion 5. As shown in FIG. 4A, the base end portion 8a of the flap valve 8 is thickly fixed to the lower surface portion of the mist unit box 3 near the drainage through portion 5 with screws 70 (FIG. 1). The fixing hole 8c is perforated, and a non-rotating convex portion 8d to be inserted into a concave portion (not shown) provided at a position close to the screwing portion of the lower surface portion is provided so as to protrude. The base end portion 8a of 8 is securely fixed by screwing and detent.

  The front end 8b side of the flap valve 8 is formed in a thin fin shape, and in this example, as it goes from the base end 8a to the front end 8b as shown in FIG. . In this example, the angle of the upper surface of the distal end portion 8b with respect to the upper surface of the proximal end portion 8a is, for example, 175 °, and thus the flap valve 8 is secured to the lower surface of the mist unit box 3 while the proximal end portion 8a of the flap valve 8 is fixed. 8 is in a state of sealing the drainage penetrating part 5 by contacting the lower surface of the drainage penetrating part 5 with a certain elastic force, but water leakage occurs and the flap valve 8 When the leaked water W accumulates on the top, it is bent downward with a slight weight so as to open the drainage through portion 5. As the material of the flap valve 8, for example, an elastic material such as single crystal silicon is selected. This single crystal silicon is generally excellent in corrosion resistance and has no deterioration in strength due to bending, and is suitable as a material for a flexible valve.

  On the other hand, as shown in FIG. 1 (b), an upper opening 6 communicating with the drainage penetration part 5 of the mist unit box 3 is opened in the ceiling part of the heater body box 1 a. The upper opening 6 is located, for example, immediately above the space behind the ventilation fan 85 shown in FIG. 1 (a), so that the leaked water W flowing from the drainage through portion 5 It flows down from the upper opening 6 of 1a to the space behind the ventilation fan 85, and further flows into the bathroom 10 through existing gaps such as the suction grill 57 on the lower surface of the heater body box 1a.

  In addition, when water leak is detected by the water leak sensor 4, a control means (not shown) composed of a microcomputer for sending a signal for stopping the operation of the apparatus, and a notification device (not shown) for notifying abnormality are provided. Provided. The signal for stopping the operation of the apparatus is, for example, a signal for stopping the operation of the heat source unit 82 and a signal for stopping the operation of the mist spray unit 2.

  If water leaks due to the breakage of the liquid-liquid heat exchanger 11 stored in the mist unit box 3 or water leaks from a pipe connection around the water due to poor construction, the leaked water W Is stored in the bottom portion 3a of the mist unit box 3, and the flap valve 8 sealing the drainage through portion 5 provided in the bottom portion 3a receives the weight of the leaked water W as shown by the phantom line in FIG. As a result, the leaked water W is drained into the bathroom 10 from the drainage penetration part 5. Thereby, since the leaked water W in the mist unit box 3 does not leak to the back of the ceiling where the present apparatus is installed, it is possible to prevent damage to the house. Moreover, since the system automatically stops the operation of this device at the same time as anomaly notification, water leakage does not continue, and damage to the building materials of the house due to leaked water W can be stopped quickly, while alarming By notification, the user can promptly inform the contractor and start repairing.

  Moreover, since the drainage penetrating portion 5 is provided at the bottom 3a of the mist unit box 3, the leaked water W in the mist unit box 3 is drained into the bathroom 10, and a sanitary mist sauna bath. Can enjoy with confidence.

  In addition, when the water leak does not occur, the flap valve 8 maintains the posture (solid line in FIG. 1B) in which the drainage through portion 5 is sealed by its own elastic restoring force. Since moisture can be prevented from entering the back of the ceiling through the mist unit box 3 from the drainage penetration part 5, damage to the house due to moisture can be surely prevented. In addition, since moisture can be prevented from entering the mist unit box 3, electrical components such as a water supply valve 17, a drain valve 19, and a water proportional valve 27, which are electromagnetic valves installed in the mist unit box 3, are exposed to moisture. There is no risk of exposure, and even when the water leak sensor 4 installed in the mist unit box 3 is configured as an electrode, malfunction of the water leak sensor 4 due to moisture can be reliably prevented.

  In this example, the mist unit box 3 is mounted on the heater main body box 1a, and the leaked water W in the mist unit box 3 passes through the space behind the ventilation fan 85 in the heater main body box 1a. Since it flows down into the bathroom 10 through a gap such as the suction grill 57 on the lower surface of the la, there is no need to provide a dedicated hole for draining in the ceiling portion of the bathroom 10 and the work of drilling the ceiling of the bathroom 10 can be omitted. There is an advantage that it is possible to prevent the occurrence of stains and corrosion on the ceiling due to the leaked water W.

  Further, since the heat medium branch circulation path 23 branched from the heat medium circulation path 29 housed in the heater main body box 1a is drawn into the mist unit box 3 and connected to the liquid-liquid heat exchanger 11, conventional Compared with the structure in which the heat medium circulation path described in the example (Japanese Patent Laid-Open No. 2003-336875) is arranged in the mist unit box, the number of pipes in the mist unit box 3 is reduced, and the metal mist unit box 3 is advantageous in that it can be easily reduced in size and weight. Furthermore, the whole can be reduced in size by attaching the mist unit box 3 on the heater main body box 1a. Moreover, there is an advantage that the mist sauna function can be easily added without changing the basic design of each part of the heater body 1.

  Further, since the flap valve 8 is attached with screws, the attachment is simple, and the flap valve 8 opens only when it receives the weight of the leaked water W, and bends in the closing direction when no weight is received. There is also an advantage that the power for opening and closing the valve 8 is completely unnecessary, and the structure of the sealing member 7 can be simplified.

  Further, in this example, a water receiving member 9 is provided outside the mist unit box 3 as shown in FIG. 1 (a), and leaked water W ′ generated at piping connection locations such as the water supply joint 26, the drainage joint 50 and the like. Is received by the water receiving member 9 so that it can be introduced into the mist unit box 3. In other words, the leaked water W ′ from the outside is once accumulated in the water receiving member 9, guided from the lateral hole 3 b provided in the side wall of the mist unit box 3 to the bottom 3 a of the mist unit box 3, and further flaps from the drainage through part 5. The valve 8 is opened to flow down into the bathroom 10. At this time, since the water leak sensor 4 in the mist unit box 3 detects the abnormality and notifies the user, the user can know the water leak. Therefore, it is possible to sufficiently deal with external water leakage by utilizing the drainage penetration part 5 of the mist unit box 3, and the water leakage sensor 4 simultaneously detects water leakage outside the mist unit box 3. To work. As a result, even when a construction failure such as a piping error occurs outside the mist unit box 3, it is possible to eliminate the damage that the outside leakage water W ′ rots the building material behind the ceiling of the house.

(A) is a side view which shows an example of the bathroom heating apparatus with a mist sauna function provided with the mist spraying unit and heater main body of one Embodiment of this invention, (b) is an enlarged view of the A section of (a). FIG. 6 is a cross-sectional view illustrating a state in which the flap valve seals the drainage through portion and a state in which the flap valve is bent downward due to the weight of leaked water. (A) is a plane sectional view of the same mist spraying unit and mist unit box, (b) is a front view, (c) is a partially broken front view. (A) is a top view of a mist unit box same as the above, (b) is a left side view, (c) is a right side view. An example of the flap valve which comprises a sealing member same as the above is shown, (a) is a top view, (b) is a side view, (c) is a front view. It is explanatory drawing of the internal piping structure of the bathroom heating apparatus with a mist sauna function same as the above. It is explanatory drawing of the installation state of the bathroom heating apparatus with a mist sauna function same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating machine main body 1a Heating machine main body box 2 Mist spray unit 3 Mist unit box 3a Bottom part 4 Water leak sensor 5 Drain through part 7 Sealing member 8 Flap valve 9 Water receiving member 10 Bathroom W, W 'Leaked water

Claims (6)

  The main body of the heater is provided with a circulation fan and an air-conditioning heat exchanger for heating the air ventilated by the circulation fan with a heat medium from the heat source unit, and water supplied from a water supply channel is formed with the heat medium. A bathroom heating device with a mist sauna function provided with a liquid-liquid heat exchanger to be heated, and a mist nozzle for spraying hot water heated by the liquid-liquid heat exchanger in a mist form in the bathroom, A mist unit box containing a liquid-liquid heat exchanger is attached to the main body box of the heater, and at the bottom of the mist unit box, when water leaks in the mist unit box, the leaked water flows into the bathroom. A bathroom heating device with a mist sauna function, characterized by the establishment of a drainage penetration.   The bathroom heating device with a mist sauna function according to claim 1, wherein the mist unit box is mounted on a heater main body box.   The bathroom with a mist sauna function according to claim 1 or 2, further comprising a sealing member for sealing the drainage penetrating part at a time other than when a water leak occurs in the mist unit box. Heating device.   The sealing member bends in a direction to open the drainage penetration when receiving the weight of leaked water, and has an elastic flap that can be deflected in a direction to close the drainage penetration when no weight is received. The bathroom heating device with a mist sauna function according to claim 3, comprising a valve.   A water leak sensor is disposed in the mist unit box, and includes a control means for sending a signal for stopping the operation of the apparatus when a water leak is detected by the water leak sensor, and a notification means for notifying an abnormality. The bathroom heating device with a mist sauna function according to any one of claims 1 to 4.   6. The water receiving member for introducing leaked water generated at a pipe connection point outside the mist unit box to the inside of the mist unit box is provided. 6. Bathroom heater with mist sauna function.

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