JP2531265B2 - Rapid heating method and hot air combined type heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is suitable for use in a rapid heating method capable of shortening the rise time at the start of heating and having a good quick heating property, and in carrying out the method. Concerning the composition of a warm air composite type stove.

(Prior Art) A radiant stove is a system that radiates heat rays to a heating target to heat it, and has the advantage that it can quickly raise the temperature of the heating target, but it raises the temperature of the surrounding air to uniformly heat the room. Since it requires a considerable amount of time, it is used exclusively for local heating.

Therefore, a hot-air combined type stove has recently been used, in which a warm air heater is used to start heating when the room temperature is extremely low, and a heating stove is used to switch to heating at the end of warming up.

This warm air composite type stove has a radiant stove on the top and a warm air heater on the bottom inside the casing.When warming up, warm air is blown out from the blowout grill provided at the bottom of the casing, and the room temperature is, for example, 16 ° C. When the temperature rises to some extent, the capacity of the warm air heater is halved, and the radiant stove is heated to switch to parallel operation, and when the room temperature rises to, for example, 19 ° C, the radiant stove is switched to independent operation and steady operation is performed. Is designed for efficient use with a radiant stove.

(Problems to be Solved by the Invention) A heater using the advantages of hot air heat and radiant heat in this way is a small device suitable for home use, office use, etc. In the transient operation where the wind heater and the radiant stove are used together, the expected heating effect cannot be obtained and it takes a considerable time to raise the room temperature. There was a chipping problem.

Furthermore, as a result of heat convection generated by the warm air heater in the casing due to the operation of the warm air heater up to steady operation, the temperature of the upper part of the front of the main unit rises considerably and equipment such as operating parts installed on the upper side is It is also a problem that the temperature rises due to heating and is dangerous.

The present invention is to provide a rapid heating method capable of overcoming the various problems that are considered to be a problem of such a conventional device and being capable of enriching the rapid heating property.
The present invention provides a warm air composite type stove which has a structure suitable for carrying out the method and which suppresses a temperature rise in the main body casing and is excellent in safety. It is an object of the invention to try to remove the above.

(Means for Solving the Problems) However, as is apparent from the embodiments shown in the accompanying drawings, the present invention relates to a rapid heating method using a hot air combined type stove, and in particular, a radiant stove. When the heating operation is performed by the integrated hot air combined type stove having (1) the upper part and the warm air heater (2) having a larger capacity than the stove (1) at the lower part, several degrees Celsius
Low set temperature having a temperature difference therebetween (T _L), by setting the three temperatures of the intermediate set temperature (T _M) and high set temperature (T _H) in comparison with room temperature, required to warm up the start of the operation During the warm-up time (t _W ), up to a predetermined intermediate time (t _M ), when the room temperature is below the high set temperature (T _H ), the warm air heater (2) is operated at full capacity and set to a high setting. When the temperature (T _H ) is exceeded, drive the radiation stove (1),
On the other hand, until the warm-up time (t _W ) is reached after the predetermined intermediate time (t _M ), the warm air heater (2) is operated at full capacity when the room temperature is below the intermediate set temperature (T _M ). When the intermediate set temperature (T _M ) is exceeded, the radiant stove (1) is operated, and in the steady operation after the warm-up time (t _W ), the warm air heater (2) is used when the temperature is lower than the low set temperature (T _L ). ) Is operated at full capacity, and when the temperature exceeds the low set temperature (T _L ) and is below the intermediate set temperature (T _M ), the hot air heater (2) and radiation stove (1) with reduced capacity are simultaneously It is characterized by increasing the room temperature by operating the radiant stove (1) when the temperature exceeds the intermediate set temperature (T _M ).

Next, the invention of claim 2 relates to a warm air composite type stove,
On the stand base (4) provided with the blow-out grill (6) on the front side, the vertically elongated main body casing (3) having the upper air outlet (5) provided on the upper front side is assembled and erected, and the stand base (4) is installed. A blower duct (16) extending between the bottom of the main body casing (3) and the blowout grill (6) is provided therein, and a ceramic heater (17) is provided in the blower duct (1).
A warm air heater (2) is formed by arranging the ceramic sheath heater (2) inside the main casing (3), and a ceramic sheath heater (7) and a partition plate (8) that also functions as a reflection plate behind it in the main casing (3). Or a radiant stove (1) formed by a combination of a sheathed heater and a partition plate (8) on the back of the sheath heater facing the front side of the upper part and the partition plate (8), and Cold air passages (9) connected to the upper air outlet (5) are provided on the rear side of the radiant stove (1), respectively, and further, below the radiant stove (1) and the cold air passage (9) which are provided with a fan (10). Part of the fan (10), the blower part (12) provided in the lower part of the housing (11) of the fan (10) is connected to the blower duct (16), and the blower part (13) is connected to the main body casing (3). The suction grille (19) on the rear side of the The housing (11) is provided with an outlet (14) for feeding to the passage (9), and the main body casing (3) is further provided with a radiant stove (1) and a warm air heater (2) alone. Alternatively, it is characterized in that an operating portion (15) for controlling the selective operation so that the individual heating capacities can be adjusted simultaneously is attached.

Furthermore, the invention of claim 3 is characterized in that a radiation stove (1) of variable radial direction, which can adjust the radiation direction to any direction between the horizontal direction and the oblique downward direction, is provided in the invention of claim 2. And

(Operation) In the present invention, during the warm-up period (t _W ) of, for example, 5 minutes from the start of operation, the warm air heater (2) performs the full capacity heating operation, so that the indoor temperature can be raised quickly.

At that time, during a predetermined intermediate time (t _M ) of 3 minutes from the start of operation, the temperature reaches a high set temperature (T _H ), for example, 19 ° C., and the heating stove (1) is switched to the heating operation, and the predetermined intermediate time (t _M ) is reached. ), The temperature rises up to the warming-up time (t _W ) and reaches an intermediate set temperature (T _M ) of, for example, 16 ° C, and the operation mode is switched to heating operation of the radiant stove (1). By automatically changing the time of the fast warming operation by the warm air heater (2) according to the state of variation of the room temperature with time, the rise time can be shortened without impairing comfort.

In the steady operation after the warming up is completed, it is possible to accelerate the switching to the radiant stove (1) having high heating efficiency while trying to raise the room temperature to the set temperature as quickly as possible.

The invention of claim 2 is a structure capable of blowing warm air to the feet and radiant heating to the upper body, and can sufficiently maintain comfort, and at the same time, the room sucked by the fan (10) during the warm air heating operation. Since a part of the air is circulated in the cold air passage (9) to cool the partition plate (8) of the radiant stove (1), the air is blown out of the main casing (3) through the upper outlet (5). The temperature rise in the main casing (3) can be suppressed to prevent the internal equipment from overheating.

(Example) The Example of this invention is described below based on drawing.

1 and 2 are a perspective view and a right side view showing a cross section of a stove according to an embodiment of the present invention. The warm air composite type stove has a blow grille (6) on the front surface as an external structure. On the stand base (4), a vertically elongated main body casing (3) having an upper air outlet (5) provided at the front upper part is assembled and erected, and air is blown into the stand base (4). A duct (16) is provided so that the duct (16) extends in an L shape between the bottom of the main body casing (3) and the blowout grill (6), and, for example, a honeycomb plate is provided in the middle of the blower duct (16). A ceramic heater (17) having a shape is provided, and the heater (17), the blower duct (16) and a fan (10) described later form a warm air heater (2).

On the other hand, in the main body casing (3), two heater units, which are a combination of a ceramic sheathed heater (7) in the shape of a round bar and a partition plate (8) provided as a reflection plate on its back, are arranged vertically. The radiant stove (1) formed by juxtaposing is arranged on the front side of the upper part, and is obliquely installed above the partition plate (8), the rear plate of the main body casing (3) and the partition plate (8). A cold air passage (9) surrounded by a heat shield plate (18) and having an upper end portion connected to an upper air outlet (5) is arranged behind a radiant stove (1).

Further, at a location below the radiant stove (1) and the cold air passage (9) in the main casing (3),
For example, a sirocco type fan (1
0) is installed and the housing (1
The blow-out part (12) provided in the lower part of (1) is connected to the blower duct (1).
The suction portion (13) connected to the upper end of the housing (11) and provided on the rear portion of the housing (11) faces the suction grill (19) opened on the back side of the main casing (3).

The fan (10) is provided with an air outlet (14) having a small opening in the upper part of the housing (11) and communicates the air outlet (14) with the lower end of the cold air passage (9).

In the figure, (15) is an operation unit including a control board, switches that can be operated from the outside, and a radiation stove (1).
And a control function for controlling the operation of the warm air heater (2).

Further, (20) is a filter provided on the suction grill (19), (21) is a room temperature detection thermistor provided in association with the suction part (13) of the fan (10), and (22) is a radiant stove (1). The front guards provided on the front face of each are shown.

The hot-air combined type stove having the above-mentioned configuration can automatically control the heating operation in the operation section (15). This will be briefly described with reference to the characteristic diagram of FIG. In the setting circuit, a low setting temperature (T _L ) having a temperature difference of several degrees Celsius, for example, 3 degrees Celsius, between each other, for example, 13
℃, intermediate set temperature (T _M ) such as 16 ℃ and high set temperature (T _M ) such as 19 ℃ three temperatures are set as reference values, while the time setting circuit requires warming up from the start of operation. A predetermined warm-up time (t _W ), for example, 5 minutes, and a predetermined intermediate time (t _M ), which is an appropriate time on the way to this time (t _W ), for example, 3
Two hours, minute and minute, are determined as the reference value.

Each time (t _W ), (t _M ) and each temperature (T _L ),
(T _M), (T _H) and the thermistor (21) is sensed at room temperature (T) and radiation heaters (1) based on the correlation between the operating time from the operation start (t) and the warm air heater ( 2)
The start and stop of the heating and cooling are performed as described below. For example, the capacity of the radiant stove (1) is set to 350 W, and the capacity of the warm air heater (2) is set to 1200 W, which is considerably larger than this.

(A) In the case of the first half of warming up (0 <t ≦
t _M ), (a) Operate the hot air heater (2) at full capacity of 1200 W at room temperature (T) ≤ high set temperature (T _H ).

(B) At room temperature> high set temperature (T _H ), switch to 350 W operation of the radiant stove (1).

(B) In the latter stage of warming up (t _M <t ≤
t _M ), (a) At room temperature (T) ≤ intermediate set temperature (T _M ), operate the hot air heater (2) with full capacity of 1200 W.

In (b) at room temperature (T)> intermediate set temperature (T _M), switches the 350W operation of radiant heaters (1).

(C) In the case of steady operation (t> t _W ), (a) At room temperature (T) ≤ low set temperature ( _TL ), the hot air heater (2) is operated at full capacity of 1200 _W.

However, this operation is for an abnormally heavy load such as opening the door for ventilation.

(B) At low set temperature (T _L ) <room temperature (T) ≦ intermediate set temperature (T _M ), the warm air heater (2) is operated with the capacity lowered to, for example, 600 W, and at the same time the radiation stove (1) is set to 350 W.
To drive in parallel.

(C) At room temperature (T)> intermediate set temperature (T _M ), stop the hot air heater (2) and switch to only 350W operation of the radiant stove (1).

By performing the automatic operation control in this way, it is possible to sufficiently cover the point that the rise in room temperature is slow and the heating takes a long time to rise in the radiant heating method with the warm air, and the quick warming property can be improved.

Moreover, since the quick warming time by the warm air is changed according to the state of temperature fluctuation during warming up, it is possible to maintain sufficient comfort while performing rapid heating.

Further, in the illustrated stove, while the warm air heater (2) is operating, a part of the indoor return air having a low temperature is made to flow into the cold air passage (9), and the upper portion inside the main body casing (3) is heated by convection heat. Since it is possible to prevent the temperature from rising, it is possible to protect each instrument of the operating section (15) from overheating.

Next, FIGS. 4 and 5 show an essential part of an embodiment according to the invention of claim 3, wherein the partition plate (8) also serving as a reflection plate is a fixed type, and this partition plate (8) A movable reflection plate (23) is pivotally supported on the partition plate (8) so as to be vertically swingable about the axis of the ceramic sheathed heater (7). The reflecting plate (23) is engaged with a swing angle adjusting lever (24) whose middle portion is supported by a side plate of the partition plate (8), and a knob fixed to the upper end of the lever (24). By sliding back and forth, the angle of the reflection plate (23) can be manually adjusted so that the radiation direction can be directed in any direction from the horizontal direction to an appropriate angle from the horizontal downward direction. It is possible.

Although not shown in the figure, in addition to the manual operation, a mechanically oscillating structure that can be remotely operated using a small motor is also used, and in conjunction with the independent heating operation of the radiant stove (1). One in which the direction of the reflection plate (23) is automatically switched is considered, and modified examples thereof are also included in the scope of the present invention.

However, by making the radiation stove (1) variable in the radiation direction of the heat ray, as shown in FIGS. 6 to 8, the radiation stove (1) and the warm air heater (2) are parallel to each other in a horizontal radiation direction. It is possible to heat the whole body from the foot to the upper body at a constant temperature while driving (see Fig. 6). If the radiant stove (1) was operated alone in the horizontal radial direction, the foot could be heated. Since it may be cold (see Fig. 7), by changing the radiation direction diagonally downward (see Fig. 8), it is possible to perform comfortable heating of head cold foot heat, and in this way according to the needs of the user. Each type of heating that maintains comfort is possible.

(Effects of the Invention) The present invention has the configuration as described above and functions, and the warm air heater (2) sufficiently covers the slow rising point of the radiation stove (1) with respect to room temperature rise. It is possible to improve the quick heating property.

Moreover, since the operation switching temperature point between the warm air heater (2) and the radiant stove (1) is changed according to the degree of temperature change at the time of warming up, the quick warming time with warm air depends on the room temperature at that time. By adjusting the length, you can improve the quick warmth while maintaining comfort.

Further, since the invention of claim 2 has a structure in which a part of the indoor return air is caused to flow into the cold air passage (9) during the operation of the warm air heater (2), convection of heat generated on the side of the warm air heater (2) is performed. As a result, it is possible to suppress the rising airflow due to the above and prevent the temperature rise in the upper part of the main body casing (3), and it is possible to provide a highly safe device by protecting the temperature of various parts existing in the operation part and the like.

In addition, the radiation direction of the radiant stove (1) can be adjusted diagonally downward so that it can perform various types of heating such as foot heating to meet the demands at that time and easily provide a versatile stove. You can

[Brief description of drawings]

1 and 2 are perspective views and right side views showing the appearance of a composite type stove according to an example of the present invention, and FIG. 3 is a characteristic diagram showing a room temperature-time relationship for explaining the method of the present invention. , 4th
5 and 5 are a front view and a right side view showing an essential part of the composite type stove according to the embodiment of the present invention, and FIGS. 6 to 8 are explanatory views of vertical temperature distribution similarly shown according to operating states. (1) ...... Radiant stove, (2) …… Warm air heater, (3) …… Main body casing, (4) …… Stand stand, (5) …… Upper air outlet, (6) …… Air outlet grill, (7) …… Ceramic sheathed heater, (8) …… Partition plate, (9) …… Cold air passage, (10) …… Fan, (11) …… Housing, (12) …… Blowout section, (13) …… Suction part, (14) …… Blowout port, (15) …… Operation part, (16) …… Blower duct, (17) …… Ceramic heater.

Claims (3)

(57) [Claims] 1. A heating stove (1) having a radiant stove in the upper part and a warm air heater (2) having a larger capacity than the stove (1) in the lower part, respectively, for heating operation by an integrated hot air combined type stove. , A low set temperature (T _L ), which has a temperature difference of several degrees between each other, an intermediate set temperature (T _M ), and a high set temperature (T _H ), are set and compared with room temperature. During the warm-up time (t _W ) required for warm-up, up to a predetermined intermediate time (t _M ),
RT high set temperature (T _H) when the following warm air heaters (2)
The full capacity, and when the temperature exceeds the high set temperature (T _H ), the radiant stove (1) is operated, while the predetermined intermediate time (t _M )
The past until reaching the warm-up time (t _W) is operated at room temperature intermediate the set temperature (T _M) below full capacity hot air heater (2) when the intermediate set temperature (T _M) excess In the steady operation after the warm-up time (t _W ), the radiant stove (1) is operated at low temperature, and when the temperature is lower than the low set temperature (T _L ), the warm air heater (2) is operated at full capacity. exceeds the set temperature (T _L), and an intermediate set temperature (T _M) below the warm air heaters (2) having a reduced capacity when the radiation heaters (1) and operated at the same time, the intermediate set temperature (T _M ) A rapid heating method characterized by raising the room temperature quickly by operating the radiant stove (1) when exceeding. 2. A vertically long main body casing (3) having an upper outlet (5) provided on the upper front is assembled and erected on a stand base (4) having an outlet grill (6) on the front, In the stand base (4), a blower duct (16) extending between the bottom of the main body casing (3) and the blowout grill (6) is provided, and a ceramic heater (17) is provided in the blower duct (16). ) To form a warm air heater (2), while the main body casing (3) contains a ceramic sheathed heater (7) and a partition plate (8) that also functions as a reflection plate behind it. A radiation stove (1) formed by a combination or a combination of a sheathed heater and a partition plate (8) on the back thereof is provided on the front side of the upper part and facing the partition plate (8), and the upper part. The cold air passage (9) connected to the air outlet (5) is wiped. The lower part of the housing (11) of the fan (10) is provided on the rear side of the stove (1), and further provided with the fan (10) below the radiant stove (1) and the cold air passage (9). The blow-out part (12) provided in the air-conditioner is connected to the blower duct (16), and the blow-in part (13) faces the suction grill (19) on the rear side of the main body casing (3) and a part of the blow-out air The housing (11) is provided with an air outlet (14) for feeding the air to the cold air passage (9), and the main body casing (3) is further provided with a radiant stove (1) and a warm air heater (2). A warm air combined type stove characterized in that an operating section (15) for selectively controlling operation of and independently of and independently of each other is adjustable. 3. The warm air combined type stove according to claim 2, wherein the radiant stove (1) is a radial direction variable type capable of adjusting a heat ray radiating direction in any direction between a horizontal direction and an obliquely downward direction.