JPH01266466A - Hot air heating apparatus - Google Patents

Abstract

PURPOSE:To improve the air delivery direction of a forced convection hot air heating apparatus having a natural convection heating function so as to make the room temperature distribution uniform by providing the guide section above a fan with a surface which is parallel with the radiator or inclined toward the radiator, and pulling back the end of the guide section away from the front panel. CONSTITUTION:In a hot air heating apparatus having a structure in which the casing 1 contains a fan 4 in its lower part, a radiator 3 set apart from the fan 4 and an opening above the radiator 3, a guide section 2 is disposed above the fan 4. The guide section 2 has a surface which is parallel with or inclined to the radiator 3, and the end of the guide section 2 is pulled back away from the front panel of the radiator 3. In the case where the end 2a of the guide section 2 has a surface parallel with the radiator 3, the forced convection delivery 7 is horizontal when the forced convection is being performed. At the time of the natural convection, the natural convection delivery 9 is almost directly upward because it is pulled back from the casing front panel by A dimension, and so, the draft resistance can be reduced to increase the heat release correspondingly. By improving the air delivery direction, the room temperature can be made uniform at the time of room heating.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fan convector isothermal air heating device used for indoor heating.

(Prior art) Figures 5 and 6 show an example of a conventional hot air heating device, where Figure 5 is a perspective view and Figure 6 is a sectional view taken along line A and - in Figure 5. In figure 0, 1 is a casing, 2 is a guide part, 3 is a radiator, 4 is a blower, 5 is a heat medium transfer pipe, 6 is an upper opening, 7 is a forced convection blowout, 8 is a lower opening, 9 indicates natural convection blowout.

As shown in FIG. 6, the guide portion 2 at the outlet of the conventional hot air heating device is formed obliquely on the casing so as to reduce the ventilation resistance at the outlet of the casing 1.
Its tip was at the same angle as the guide part.

However, since hot air heating devices are used for indoor heating, there is a desire to blow hot air as far as possible toward the floor surface so that the indoor temperature distribution is as uniform as possible or the area near the floor is warm. be.

However, in natural convection heating, as shown in FIG. 7, the natural convection is required to blow upward in order to warm the cold air coming from the window.

(Problem to be Solved by the Invention) Heating devices can be divided into natural convection type heaters that do not have an air blower and forced convection type heaters as shown in Figure 6.
If the forced convection type air blower is used indoors and the noise is a problem, it is necessary to prepare a separate natural convection type heater.

It would be very convenient if the forced convection type air blower was stopped and the heater became a natural convection type heater, but the above-mentioned problem of the blowing direction arises. That is,
In the forced convection type, it is desirable that the blowing direction be directed toward the floor as much as possible.

In the case of natural convection, it is desired that the air be blown directly upward due to the heat dissipation structure, and this has mutually contradictory demands.

The present invention was devised in order to improve the above-mentioned drawbacks, and its purpose is to improve the blowing direction in a heating system in which a natural convection heating function is added to a forced convection hot air heating system, and to improve indoor heating efficiency. The purpose is to keep the room temperature uniform.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an air blower below a casing, a radiator spaced apart from the air blower,
In the hot air heating device in which an opening is provided above the radiator, a guide portion is provided above the blower, and the guide portion has a surface parallel to the radiator or a surface inclined toward the radiator,
The gist of the invention is a hot air heating device characterized in that the tip of the guide portion is recessed from the front surface of the radiator.

(Function) According to the present invention, in a room temperature heating device, by providing a guide section above the radiator, forced convection blowing of the heating device is performed, which is forced convection heating when the blower is operated and natural convection heating when the blower is stopped. Since the air is blown in a direction closer to the floor surface, the temperature distribution in the room can be made uniform.

(Example) Next, an example of the present invention will be described. It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements may be made without departing from the spirit of the present invention.

FIG. 1 shows an embodiment of the hot air heater of the present invention.

In the figure, l is a casing, 2 is a guide part, 3 is a radiator, 4 is a blower, 6 is an upper opening, 7 is a forced convection blowout,
8 indicates a lower opening, and 9 indicates a natural convection blowout.

In this embodiment, the tip 2a of the guide portion has a surface parallel to the radiator in the figure, but during forced convection, the forced convection blowout 7 is blown out in the lateral direction.

At the time of natural convection, the natural convection outlet 9 is recessed from the front surface of the casing by a dimension, so that it has a shape similar to that of an outlet directly above, reducing ventilation resistance and increasing the amount of heat radiation accordingly.

FIG. 2 shows another embodiment of the present invention, in which the tip Ff62a of the guide portion has a surface inclined toward the radiator. During forced convection, the forced convection outlet 7 blows out slightly downward. During natural convection, the natural convection outlet 9 is the first
Same as the figure.

FIG. 3 shows another embodiment of the invention. In this embodiment, the guide portion 2 is curved. It is thought that it would be more effective if this guide part were curved, compared to FIG. 1, because the wind direction would be gradually corrected laterally along the guide part.

FIG. 4 shows another embodiment of the present invention, in which the tip of the guide portion is slightly bent downward.

Although FIGS. 1 and 2 show an example in which the guide part is made of a member separate from the casing, and FIGS. 3 and 4 show an example in which the guide part is a casing, the effect is the same.

(Effects of the Invention) As described above, the present invention provides a hot air heating device in which a guide portion is provided above the blower, and the guide portion has a surface parallel to the radiator or a surface inclined toward the radiator. In addition, by retracting the tip of the guide part from the front of the radiator, the forced convection air of the heating device can be directed closer to the floor surface, such as forced convection heating when the blower is operated, and natural convection heating when it is stopped. Since the air is blown towards the target, it has the effect of making the temperature distribution in the room uniform.

[Brief explanation of the drawing]

Fig. 1 shows one embodiment of the hot air heater of the present invention, Figs. 2 to 4 show other embodiments of the invention, and Figs. 5 to 7 show conventional examples. 1... Casing 2... Guide part 3... Heat radiator 4... Air blower 5... Heat medium transfer vibe 6... Upper opening 7... Forced convection blowout 8...
・Lower opening 9...Natural convection blowout Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 6 (A+ to A2 axis) Fig. 7

Claims (1)

[Claims] In a hot air heating device, a blower is provided below a casing, a radiator is provided spaced apart from the blower, and an opening is provided above the radiator, a guide portion is provided above the blower, and a guide portion is provided above the blower; 1. A hot air heating device characterized in that the guide portion has a surface parallel to the radiator or a surface inclined toward the radiator, and a tip of the guide portion is recessed from a front surface of the radiator.