JPH09292159A - Heat storage type heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance thermal insulation performance even if heat storage temperature of a heat storage body is elevated. SOLUTION: An opening 12 of a first air path 6 is closed by self weight of a damper 32 while operation of a blower 15 is stopped during heat storing operation. Thermal effects of the blower 15 and a periphery thereof are blocked by the damper. While heat is being stored, an opening 26 of a second air path 21 is opened. Therefore, even if heat storage temperature of a heat storage body 3 is elevated, heated air within the first air path 6 can be appropriately discharged through a steam outlet 24. Thermal effects upon the blower 15 and outer flame member 1 side can be further alleviated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage type heating machine which blows heated air from an air outlet by utilizing heat stored in a heat storage body.

[0002]

Conventionally, in this type of heat storage type heater, a heat storage body such as a brick is located above the blower, and an air passage communicating with the air outlet is provided along the outer circumference of the heat storage body. During heating, the air flowing from the blower into the air passage is heat-exchanged by the heat storage body, and the air warmed by the heat storage body is further heated by the blower heater so that the heated air is blown out from the air outlet. There is. Further, a heat insulating material is provided so as to surround the outer periphery of the air passage so that the heat stored in the heat storage body is not dissipated to the outside.

Such a heat storage type heater is required to rapidly heat the room, especially for general household use, and in response to this, it is necessary to increase the heat storage amount of the heat storage body. On the other hand, there is also a demand for downsizing and weight reduction of the heater body, and it has been necessary to raise the heat storage temperature of the heat storage body in order to increase the amount of heat storage while reducing the shape of the heat storage body. However, in order to raise the heat storage temperature of the heat storage body, it is essential condition to improve the heat insulation performance at the same time. There was a limit to it.

For example, a fan casing around a blower, which is provided in an air passage where it is difficult to use a heat insulating material, can be easily formed into a complicated shape if it is originally formed of a resin molded member. Can be miniaturized. However, as the heat storage temperature rises, the blower side is also filled with heated air, and the molding member is thermally deformed, which causes a problem that the material used is restricted. In addition, the surface temperature of the outer shell component provided outside the heat insulating material rises as the heat storage temperature rises.

Therefore, in view of the above problems, it is an object of the present invention to provide a heat storage type heater which can improve the heat insulation performance even if the heat storage temperature of the heat storage body is increased.

[0006]

In order to achieve the above-mentioned object, a heat storage type heater of the present invention has a heat storage body located above an air blower and communicates with a blower outlet along the outer periphery of the heat storage body. In a heat storage type heating device in which one air passage is provided and the outer periphery of the first air passage is surrounded by a heat insulating material, an opening of a second air passage communicating with a humidifier is provided in the middle of the first air passage,
An opening / closing member is provided which opens or closes the opening of the first air passage and the opening of the second air passage facing the blower according to the air flow from the blower.

According to the above construction, when the blower is not operating during heat storage, the opening / closing member closes the opening of the first air passage, so that the thermal energy stored in the heat storage body is transferred to the blower side. It is blocked by the opening / closing member without being radiated. For this reason, it is not necessary to be affected by the heat of the blower and its surroundings. Further, since the opening of the second air passage is open during the heat storage, the heated air filled in the first air passage passes through the second air passage and is reliably and safely discharged into the room from the humidifying device. Exhausted heat. Therefore, even if the heat storage temperature of the heat storage body is increased, the heated air filled in the first air passage passes through the opening of the second air passage in the open state, and is appropriately discharged from the humidifying device. The thermal influence on the outer frame member side can be further reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the regenerative heater according to the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 1 denotes an outer frame member forming an outer shell of the main body 2; U protruding from the part
A heater 4 for heating the heat storage body is provided. Heat storage body 3
In the present embodiment, bricks having excellent heat storage properties are used. However, in order to increase the surface area and enhance the heat dissipation of the heat storage body 3, unevenness as shown in FIG. 5 are formed. Reference numeral 6 is a first air passage provided in an inverted U shape along the outer circumference of the heat storage body 3, and a heat insulating material 7 is provided so as to surround the outer circumference of the first air passage 6. First
In front of the air passage 6, a blower heater 8 that is located in front of the heat storage body 3 and heats the air in the first air passage 6 during heating is provided.

At the lower end of the first air passage 6, openings 11 and 12 are provided at the front side and the rear side of the main body 2, respectively. In the front side of the main body 2, that is, in the one opening 11 located at the outlet of the first air passage 6, the warm air that has passed through the first air passage 6 is guided to the air outlet 13 provided on the front side of the outer frame member 1. Duct 14 is attached. A blower 15 is provided at a lower portion of the main body 2 at the other opening 12 located at the entrance of the first air passage 6. The upper part of the blower 15 on the exhaust side faces the opening 12.
A fan casing 16 is provided so as to surround the blower 15. Further, the heat storage body 3 is mounted on a mounting table 17 provided on the upper end surface of the duct 14, whereby the blower is blown.
The heat storage body 3 is arranged on the upper part of 15. 18 is the mounting table 17
A temperature sensor attached to the heat storage body 3
It detects the temperature of.

A second air passage 21 is provided outside the heat insulating material 7 and behind the heat insulating material 7 so as to sandwich the heat insulating material 7. In the second air passage 21, the opening 23 on the tip side on the upper side has a humidifying device.
While communicating with the steam outlet 24 of 22, the lower exhaust port 25 on the base end side penetrates the rear portion of the heat insulating material 7 and the first air passage 6
Is in communication with. And the exhaust port that constitutes the second air passage 21
The opening 26 of 25 is located near the opening 12 and
It is formed on the rear side surface of the air passage 6. The humidifier 22 atomizes the water stored in the water supply unit 27, is separated from the heat storage body 3 surrounded by the heat insulating material 7, and is a steam outlet 24 provided in the upper portion of the main body 2. It has a structure that blows out more steam. The opening 26 of the second air passage 21 is provided above the air outlet 13 communicating with the opening 11 of the first air passage 6.

Reference numeral 31 denotes a plurality of hinges provided between the opening 12 in the first air passage 6 and the opening 26 in the second air passage 21, and each hinge 31 has an opening / closing member. Corresponding damper 32
However, it is mounted so as to be rotatable according to the airflow generated from the blower 15. This damper 32 closes substantially the entire surface of the opening 12 of the first air passage 6 and opens substantially the entire surface of the opening 26 of the second air passage 21 by its own weight when the operation of the blower 15 is stopped. As the rotational speed of 15 increases and the air flow from the blower 15 becomes stronger, the first air passage 6 is blown by the wind pressure.
The opening 12 is gradually opened, and conversely, the opening 26 of the second air passage 21 is gradually closed. That is, the second wind passage
The opening 26 of 21 is opened to the open position when the opening 12 of the first air passage 6 is closed by the rotation of the damper 32,
Depending on the strength of the air flow from the blower 15, the damper 32 is first
Either the opening 12 of the air passage 6 or the opening 26 of the second air passage 21 is opened or closed.

Next, the operation of the above configuration will be described. For example, when a heat storage switch (not shown) is turned on at night or when going out, the heater 8 for heat storage body is energized to heat the heat storage body 3 to store heat energy. Then, when the heat storage body 3 rises to a predetermined heat storage temperature, the temperature sensor 18
Based on the temperature detection information from the
While the power is cut off, the heat storage temperature of the heat storage body 3 is maintained constant.

During the storage of heat without heating, the blower heater 8 is turned off and the blower 15 is stopped.
The damper 32 blocks the opening 12 of the first air passage 6 by its own weight. Therefore, the thermal energy stored in the heat storage body 3 is shielded by the damper 32 without being radiated to the blower 15 side, and the blower 15 and the fan casing 16 are affected by thermal influence, specifically, thermal deformation. Disappear. Moreover, as the heat storage body heating heater 4 heats the heat storage body 3,
When the air around the heat storage body 3 is heated, the heated air is filled from above in the first air passage 6, and the heated air is
First, the uppermost opening in the first air passage 6, that is,
The humidifying device passes through the second air passage 21 from the opening 26 of the exhaust port 25.
Exhaust into the room reliably and safely from 22 steam outlets 24
Exhausted heat.

On the other hand, when the heating operation is started by the operation switch (not shown) during the daytime or when the user is in the room, the blower
15 rotates, depending on the wind pressure generated from this blower 15,
The damper 32 opens the opening 12 of the first air passage 6 while the second air passage is opened.
The opening 26 of 21 is closed incompletely. The air that has passed through the opening 12 from the blower 15 and has flowed into the first air passage 6 is warmed by heat exchange with the heat storage body 3, and the warmed air is further heated by the blower heater 8 that is energized. By doing so, the heated air flows out from the duct 14 through the outlet 13 into the room.

In this series of heating operations, the damper 32 does not completely close the opening 26 of the second air passage 21, but closes the opening 26 in a partially opened state. Therefore, most of the airflow that has passed through the opening 12 from the blower 15 flows into the first air passage 6, but the remaining part of the airflow is the opening 26.
Passes through the second air passage 21 and flows into the humidifier 22. Therefore, the air flowing into the humidifying device 22 from the opening 23 of the second air passage 21 stirs saturated steam filling the humidifying device 22 to increase the amount of humidification, and is blown out from the steam outlet 24 together with the steam. .

As described above, according to this embodiment, when the blower 15 is not operating during heat storage, the opening 12 of the first air passage 6 is blocked by the weight of the damper 32, so that heat storage The thermal energy stored in the body 3 is blocked by the damper 32 without being radiated to the blower 15 side. Therefore, it is possible to prevent the blower 15 and the fan casing 16 around it from being thermally affected. Further, during heat storage, the opening 12 of the first air passage 6 is closed, while the opening 26 of the second air passage 21 is opened, so that the heated air filled in the first air passage 6 is discharged from the opening 26. After passing through the second air passage 21, the steam is discharged from the steam outlet 24 of the humidifier 22 into the room reliably and safely, and heat is exhausted. Therefore, even if the heat storage temperature of the heat storage body 3 is increased, the heated air filled in the first air passage 6 passes through the second air passage 21 from the opening 26 in the open state, and the steam of the humidifying device 22. It is appropriately discharged from the air outlet 24, and the thermal influence on the blower 15 and the outer frame member 1 side can be further reduced.

That is, the opening 26 of the second air passage 21 communicating with the humidifying device 22 is provided in the middle of the first air passage 6, and the opening 12 of the first air passage 6 and the second air passage 21 facing the blower 15 are provided. By providing the damper 32 that opens or closes the opening 26 of the heat storage body 3 according to the air flow from the blower 15, even if the heat storage temperature of the heat storage body 3 is increased in order to increase the heat storage amount of the heat storage body 3. In addition, the heat insulation performance for the blower 15 and the outer frame member 1 side can be improved, and the main body 2 can be made smaller and lighter. Further, the heated air filled in the first air passage 6 can be exhausted and exhausted from the humidifying device 22 safely and reliably.

In this case, although the damper 32 is used as the opening / closing member in the present embodiment, for example, a shutter provided with a motor or the like electrically opens the opening 12 of the first air passage 6 during heat storage and heating. Alternatively, one of the openings 26 of the second air passage 21 may be opened and the other may be closed. However, the use of the damper 32 that is rotated by the wind pressure from the blower 15 has an advantage that the above-described actions and effects can be exhibited with a simple configuration because an electric mechanism is not required.

Further, the damper 32 of this embodiment, that is, the opening / closing member, is provided so as to open the opening 12 of the first air passage 6 and incompletely close the opening 26 of the second air passage 21 during heating. ing. Therefore, at the time of heating, part of the air flow that has passed from the blower 15 through the opening 12 passes through the opening 26 through the second air passage 21 and flows into the humidifying device 22 to saturate the humidifying device 22. Since the amount of humidification is increased by stirring the steam, the humidifier 22 can be used as compared with a conventional humidifier.
It is possible to increase the amount of humidification. Further, in the opening / closing operation of the damper 32, it is not necessary to completely close the opening 26 of the second air passage 21, so that it is not necessary to provide another airtight member on the damper 32 or the opening 26 of the second air passage 21. , It becomes possible to simplify the configuration.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

[0021]

According to the heat storage type heater of the present invention, the heat storage body is positioned above the blower, and the first air passage communicating with the air outlet is provided along the outer periphery of the heat storage body. In a heat storage type heater having an outer periphery surrounded by a heat insulating material, an opening of a second air passage communicating with a humidifier is provided in the middle of the first air passage, and an opening of the first air passage facing the blower. And an opening / closing member that opens or closes the opening of the second air passage according to the air flow from the blower, and even if the heat storage temperature of the heat storage body is increased, the blower or the outer shell constituting member is formed. In addition to improving the heat insulation performance for the side, it is possible to safely and reliably exhaust the heated air filled in the first air passage from the humidifier and exhaust the heat.

[Brief description of drawings]

FIG. 1 is a sectional view of a heat storage type heater showing an embodiment of the present invention as seen from the front.

FIG. 2 is a cross-sectional view of the same heat storage type heater as seen from a side surface.

FIG. 3 is a plan view of the heat storage body.

[Explanation of symbols]

 3 Heat storage body 6 1st air passage 7 Insulation material 12 1st air passage opening 13 Air outlet 15 Blower 21 2nd air passage 22 Humidifier 26 2nd air passage opening 32 Damper (opening / closing member)

Claims (1)

[Claims] 1. A heat storage body is located above an air blower, a first air passage is provided along the outer circumference of the heat storage body, the first air passage communicating with the air outlet, and the outer circumference of the first air passage is surrounded by a heat insulating material. In the heat storage type heater, an opening of a second air passage communicating with a humidifier is provided in the middle of the first air passage, and an opening of the first air passage and an opening of the second air passage facing the blower. Is provided with an opening / closing member that opens or closes according to the air flow from the blower.