JP2007040634A - Heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heater capable of performing hot air heating and radiant heating with a simple and compact structure. <P>SOLUTION: A main body 3 comprises a ventilation passage 2 having a blower 1 incorporated therein so as to suck air in a room on the ceiling side and blow out the air toward the center of the room. A PTC heater 8 is provided on the downstream side of the blower 1 of the passage to heat an air flow carried in this part. A blow out port 9 of the ventilation passage 2 is constituted by radiant heating means 10. The radiant heating means 10 comprises a carbon lamp heater 1 and a curved reflector 12 provided on the back surface thereof. A pair of the radiant heating means are longitudinally juxtaposed to form the blow out port 9 between the reflectors 12. In the radiant heating means 10, the reflector 12 includes a sub-reflecting surface 14 preventing overheat of the carbon lamp heater 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heating apparatus mainly used for heating or drying a bathroom.

  A certain amount of ingenuity has been paid to the device that heats a space with a unique usage such as a bathroom. In order to make the whole bathroom into a heating atmosphere or a dry atmosphere, a warm air device by a combination of a blower and a heating means that raises the temperature of the air while circulating the air in the bathroom is suitable for the rise of heating, but it is suitable for bathing Hot air hits the bather directly, and the temperature of the sensation drops, impairing comfort. In view of this, there has been developed a heating apparatus provided with a radiation heating apparatus so as to perform radiation heating by radiation that does not give a feeling of airflow when bathing. In addition, there exists what is disclosed by patent document 1 as this kind of prior art.

JP 2005-106372 A

  In a conventional bathroom heating device capable of performing hot air heating and radiant heating, hot air heating is performed by operating the blower and the heating means, and radiant heating is performed by operating the radiant heating device and the blower. ing. The reason why the blower is operated by radiant heating is to cool the radiant heating device by blowing air, but it is the same blower as the blower of hot air heating, and the wind caused by the blast also hits the bather by radiant heating and impairs comfort. Gives a feeling of airflow. Therefore, a wind direction variable plate is provided at the air outlet, and warm air is blown toward the center of the bathroom during hot air heating, and blown along the wall surface of the bathroom during radiant heating so that the wind does not directly hit the bather. . However, since the wind direction variable plate is necessary, there is a problem that the air path structure of the blower is restricted, and the apparatus becomes complicated and large. Along with this, it is necessary to develop an easy-to-handle heating device that appropriately switches between hot air heating and radiant heating and forms a more comfortable heating atmosphere in the bathroom. Another problem is to reduce the operating noise of the blower in an inherently quiet bathroom space.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to obtain a heating device that can realize hot air heating and radiant heating with a simple configuration and compactness. In addition, it is to obtain a heating device that can provide a more comfortable heating atmosphere, and to obtain a heating device that is easy to handle and excellent in quietness and that is suitable for heating a bathroom.

  In order to solve the above-mentioned problems, the present invention configures a ventilation path incorporating a blower in the main body so that indoor air is sucked in on the ceiling side and blown out toward the center of the room. On the downstream side of the blower in the ventilation path, an electric heater for heating the airflow flowing through the portion is provided. The outlet of the ventilation path is constituted by radiant heating means. The radiant heating means has a structure including a radiant heater and a curved reflecting plate on the back of the radiant heater, and a pair of pairs are provided side by side, and an outlet is defined between the reflecting plates. The radiant heating means is provided with a cooling structure for preventing overheating of the radiant heater on the reflector.

  According to the present invention, since the blower outlet that blows out the air from the blower is defined between the reflection plates of the radiant heating means, the radiant heating means can be cooled by blowing even during radiant heating, and the reflection plate. Is provided with a cooling structure, the radiant heating capability of the radiant heating means can be drawn out with a small air volume, and radiant heating that does not give a feeling of airflow is realized. In addition, since the configuration of the wind direction variable plate or the like is unnecessary, there are few restrictions on the air path configuration, and a heating device suitable for bathroom heating with a simple configuration and compactness can be obtained.

  The heating device of the present invention is attached to the upper side wall surface of the bathroom, and is provided for heating and drying of the bathroom. Air in the room is sucked into the upper surface on the ceiling side and blown out from the lower front part toward the center of the room. Thus, a ventilation path incorporating a blower is configured in the main body. The blower is provided in the upper part of the ventilation path, and an electric heater for heating the airflow flowing through the part is provided in the ventilation path on the downstream side of the blower. The outlet of the ventilation path is composed of radiant heating means. The radiant heating means has a structure including a radiant heater and a curved reflecting plate on the back surface of the radiant heater. A pair of pairs are provided in the front and rear, and an outlet is defined between the reflecting plates. In the radiant heating means, a sub-reflecting surface is formed on the reflector as a cooling structure for preventing overheating of the radiant heater. The irradiation direction of each radiant heater is aligned with the curved circle center line of each reflector, and each radiant heater is placed inside the center of the curved circle so that the radiation reflected on the reflector does not return to the radiant heater again. ing. The sub-reflective surface has a two-surface configuration, and is configured as a mountain-shaped protrusion along the radiation heater on the reflection plate behind the radiation heater. The radiation irradiated from the radiation heater by this sub-reflecting surface is reflected in a direction away from the radiation heater, and the reflected radiation is more difficult to return to the radiation heater. The air outlet is formed of a reflecting plate, and the reflecting plate is cooled by blowing air, and radiation is reflected by the sub-reflecting surface. Therefore, the cooling of the radiant heating means is good, and the radiant heating capability of the radiant heating means is drawn out with a small air volume. And radiant heating that does not give a feeling of airflow is realized.

  In warm air heating, the temperature is raised while circulating the air in the bathroom by the operation of an electric heater and a blower. This warm air heating has a good rise in heating and is suitable for preheating before bathing or drying a bathroom with a ventilator. The electric heater is stopped when bathing, and radiant heating with less airflow feeling can be performed by operating the radiant heating means and the blower.

Embodiment 1 FIG.
The present embodiment shown in FIGS. 1 to 7 relates to a heating device that is attached to the upper side wall surface of a bathroom and used for heating or drying the bathroom. FIG. 1 is a perspective view showing the heating device in an installed state, FIG. 2 is an enlarged perspective view of the heating device shown with the front cover removed, FIG. 3 is a longitudinal side view of the heating device, and FIG. FIG. 5 is an enlarged vertical side view showing the structure of the radiant heating means, FIG. 6 is an enlarged perspective view showing the cooling structure of the reflector, and FIG. 7 is an enlarged view showing another structure of the radiant heating means. It is a vertical side view.

  In the heating device of the present embodiment, the main body 3 is configured with a ventilation path 2 incorporating the blower 1 so as to suck in indoor air at the ceiling-side upper surface and blow out from the lower front part toward the center of the room. Yes. A detachable front cover 4 is attached to the front surface of the main body 3. The blower 1 is a double-suction centrifugal fan, and is provided in the upper part of the ventilation path 2 so that the suction port of the impeller 5 is located on the left and right (see FIG. 2). The two impellers 5 are configured so that the phases of the blades 6 are shifted by a half pitch as shown in FIG. . This can also be achieved by changing the number of blades of the two impellers 5.

  Corresponding to the suction port of the impeller 5, the suction ports 7 of the ventilation path 2 are also provided on the upper left and right sides of the main body 3. Two PTC heaters 8, which are electric heaters for heating the airflow flowing through the portion, are provided in the ventilation path 2 on the downstream side of the blower 1 side by side. The air outlet 9 of the ventilation path 2 is composed of radiant heating means 10. The radiant heating means 10 has a structure having a carbon lamp heater 11 and a curved reflector 12 on the back of the carbon lamp heater 11, and a pair of pairs are provided side by side. An exit 9 is defined. The radiation heating means 10 is wrapped with a protective guard 13 to ensure safety.

  In the radiant heating means 10, a sub-reflecting surface 14 is formed on the reflecting plate 12 as a cooling structure for preventing overheating of the carbon lamp heater 11 (see FIGS. 5 and 6). The irradiation direction of each carbon lamp heater 11 and the curved circle center line of each reflecting plate 12 are matched, and each carbon lamp heater 11 is arranged inside the curved circle center, and the radiation reflected on the reflecting plate 12 is reflected by the carbon lamp heater. It is devised not to return to 11 again. The sub-reflecting surface 14 has a two-surface structure, and is configured as a mountain-shaped protrusion along the carbon lamp heater 11 on the reflecting plate 12 behind the carbon lamp heater 11 as shown in FIG. Radiation irradiated from the carbon lamp heater 11 by the sub-reflecting surface 14 is reflected in a direction away from the carbon lamp heater 11, and the reflected radiation is more difficult to return to the carbon lamp heater 11. Another cooling structure is provided on the sub-reflective surface 14 that forms a mountain shape.

  That is, a slit-shaped ventilation window 15 through which a part of the air flow passes along the ridgeline of the sub-reflection surface 14 is opened as shown in FIG. The ventilation window 15 has an air flow induced by the air blowing from the air outlet 9 flowing from the inner side to the outer side of the reflecting plate 12, or a part of the air flow flows from the outer side to the inner side of the reflecting plate 12. The lamp heater 11 is cooled. As shown in FIG. 7, the ventilation window 15 may guide a part of the airflow toward the air outlet 9 to the inside of the reflection plate 12 by the guide plate 16. As a result, the cooling airflow flows through the outer periphery of the carbon lamp heater 11 by being attracted by the airflow introduced from the ventilation window 15. The sub-reflecting surface 14 is effective as a series of circular arc surfaces in addition to the two-surface configuration.

  The air outlet 9 is formed of a reflecting plate 12, the reflecting plate 12 is cooled by blowing air, the radiation is reflected by the sub-reflecting surface 14, and the radiation heating means 10 is cooled well by the ventilation through the ventilation window 15. The radiant heating capability of 10 can be drawn out with a small air volume, and radiant heating without giving a feeling of airflow is realized. Cooling the carbon lamp heater 11 in this way is also effective in preventing cracking of the quartz tube due to devitrification.

  In the hot air heating, the temperature is raised while circulating the air in the bathroom by the operation of the PTC heater 8 and the blower 1. This warm air heating has a good rise in heating and is suitable for preheating before bathing or drying a bathroom with a ventilator. When bathing, the PTC heater 8 is stopped, and the radiation heating means 10 and the blower 1 can be used to perform radiant heating with less airflow.

Embodiment 2. FIG.
The present embodiment shown in FIGS. 8 and 9 relates to the automatic operation of the heating apparatus shown in the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 8, the heating device includes a wireless remote controller 19 in addition to the control device 17 and the human sensor 18. When the automatic operation mode is set by the remote controller 19, the automatic operation is instructed by the remote controller 19. The instruction from the remote controller 19 is received by a remote control light receiving unit (not shown) of the heating device (step # 1) and processed by the control device 17 according to the control sequence shown in FIG.

  Since the remote controller 19 is placed in the bathroom and operated in the bathroom, the control device 17 does not process the signal of the human sensor 18 for a predetermined time immediately after the start of the operation. When the automatic operation mode is determined, the control device 17 drives the blower 1 and the PTC heater 8 and performs preheating before bathing by hot air heating (step # 2). At this time, the turn-off timer starts automatically and counts the remaining time. The user can set the time of the off timer.

  When a predetermined time immediately after the start of operation elapses, control device 17 performs a process of receiving a signal from human sensor 18 (step # 3). If a person enters the bathroom and the output of the human sensor 18 exceeds a predetermined value within a predetermined time, the control device 17 determines that there is a bather and switches from hot air heating to radiant heating (steps # 4, #). 5). In the non-occupant detection during radiant heating, the occupancy timer operates after the occupant detection is confirmed. As in the case of occupancy detection, occupancy detection in the bathroom is performed based on the number of outputs of the human sensor 18 within a predetermined time (step # 6). It judges that there is no, and shifts to warm air heating. If the occupant detection is detected during the vacancy timer operation, the vacancy timer is reset and the vacancy timer is operated again (step # 8). The turn-off timer is an accumulated time from the start of operation, and the operation is stopped at the same time as counting up (step # 9). However, if the off timer counts up in radiant heating while bathing, the operation is continued until the absence detection is confirmed (step # 7), and the operation is stopped when the off timer is counted up. In warm air heating before bathing, the air temperature is detected by temperature detection means (thermistor, etc., not shown) provided at the suction port 7, and energization of the PTC heater 8 is cut off when a predetermined temperature is detected. In this case, the blower 1 is kept in operation, and the PTC heater 8 is energized when the return temperature is reached. Similarly, in the radiant heating during bathing, the air temperature is detected by the temperature detecting means provided in the suction port 7, and when the predetermined temperature is detected, the energization to the carbon lamp heater 11 is cut off. At this time, the blower 1 is kept in operation, and the carbon lamp heater 11 is energized when the return temperature is reached.

  In this way, by simply selecting the automatic operation mode with the remote controller 19, it is possible to release the troublesome operation of the remote controller before and during bathing, and to make the bathroom a heating atmosphere. The switch-off timer prevents forgetting to switch off the driving, and makes the bathroom heater easy to handle.

It is a perspective view which shows a heating apparatus in an installation state. (Embodiment 1) It is an expansion perspective view of the heating apparatus shown by removing the front cover. (Embodiment 1) It is a vertical side view of a heating apparatus. (Embodiment 1) It is a perspective view which shows the structure of an impeller. (Embodiment 1) It is a vertical side view which expands and shows the structure of a radiation heating means. (Embodiment 1) It is an expansion perspective view which shows the cooling structure of a reflecting plate. (Embodiment 1) It is a vertical side view which expands and shows the other structure of a radiant heating means. (Embodiment 1) It is a perspective view which shows a heating apparatus in an installation state. (Embodiment 2) It is explanatory drawing which shows the control sequence of a control apparatus. (Embodiment 2)

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Air blower, 2 Ventilation path, 3 Main body, 5 Impeller, 7 Air inlet, 8 PTC heater, 9 Air outlet, 10 Radiation heating means, 11 Carbon lamp heater, 12 Reflecting plate, 14 Subreflective surface, 15 Ventilation window, 17 Control device, 18 human sensor.

Claims (5)

  First, a ventilation path incorporating a blower is formed in the main body so that indoor air is sucked in on the ceiling side and blown out toward the center of the room. Second, an electric heater for heating the airflow flowing through the portion is provided on the downstream side of the blower in the ventilation path. Third, the air outlet of the ventilation path is constituted by radiant heating means. 4. The radiant heating means has a structure including a radiant heater and a curved reflector on the back of the radiant heater, and a pair of pairs are provided side by side to define a blow-out port between the reflectors. 5. The radiant heating means is provided with a cooling structure for preventing the radiant heater from overheating on the reflector. As mentioned above, the heating apparatus provided with 1-5.   The heating apparatus according to claim 1, wherein the cooling structure is configured by a sub-reflecting surface that separates radiation of the radiation heater from the radiation heater.   The heating apparatus according to claim 1 or 2, wherein the cooling structure is configured by a ventilation window through which a part of the air flow of the blower passes through the radiant heater.   The heating device according to any one of claims 1 to 3, wherein the blower is a double-suction type in which two centrifugal impellers are driven by one motor, and the blade phases of the two impellers Heating system   The heating device according to any one of claims 1 to 4, further comprising: a control device that controls a blower, an electric heater, and a radiant heating means; and a human sensor that outputs a signal to the control device. Either a heating operation by the operation of the blower and the electric heater or a radiant heating operation by the operation of the blower and the radiant heating means is performed by a device, and the radiant heating operation is determined by the presence or absence of a signal from the human sensor. Heating system determined.

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