JPH0240945B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to hot air heaters such as oil fan heaters.

BACKGROUND TECHNOLOGY In recent years, hot air heaters using gas, oil, etc. have developed a system that separately blows hot air and cold air in order to improve indoor temperature distribution and comfort.

An example of the above-mentioned conventional warm air heater will be described below with reference to the drawings. FIGS. 9 and 10 show examples of conventional hot air heaters. 9th
In the figure, 1 is an outer box, and 1 is a convection fan that blows air around a burner 3 and combustion tube 4 provided inside and blows out hot air from an outlet 5. 6 is a heat shield plate provided inside the duct 7. FIG. 10 shows another conventional example. In Fig. 10, 8 is an outer box, 9 is a hot air fan, which blows hot air from the combustion section 10 to the hot air outlet 1.
Blows out from 1. A cold air fan 12 blows out cold air from a cold air outlet 13.

Problems to be Solved by the Invention The operation of the hot air heater configured as described above will be explained. First, in the conventional example shown in Fig. 9, the lower side of the hot air outlet 5 blows out especially hot warm air with the heat shield plate 6 as a boundary, and the upper side blows out hot air with a lower temperature. Although it has the effect of reducing the temperature rise in item 1, it is not sufficient to improve the temperature distribution in the room and improve comfort.

Further, in the other conventional example shown in FIG. 10, since only cold air is blown out independently, when the room is sufficiently warm, it is effective in preventing the temperature near the ceiling from becoming high and improving the indoor temperature distribution. However, when the heating starts up, the area near the ceiling is also quite cold, so there is little need to blow cold air upwards. In addition, warm air outlet 11
The hot air from the room cannot be flowed very quickly because it causes discomfort when it hits the body directly, and the distance the hot air reaches is short, so it is not enough to warm the entire room and the hot air rises. It cannot be suppressed. In other words, a cold air fan is created near your feet.

The present invention was made in view of the above-mentioned problems, and an object of the present invention is to improve the indoor temperature distribution without unnecessarily increasing the flow rate of hot air, heat the entire room, and improve comfort.

Means for Solving the Problems In order to solve the above problems, the hot air heater of the present invention uses a fluid element to blow hot air from the lower part of the main body, and has an outlet with curved surfaces in both left and right directions. A hot air guide vane is provided for guiding hot air to the duct and the curved surface portion. On the other hand, a cold air outlet is provided at the top of the main body, and a cold air fan blows out cold air, and the cold air outlet is also an outlet using a fluid element, and a cold air guide plate that forms a curved surface in the vertical direction and guides the cold air to the curved surface. It is equipped with the following. Further, each of the hot air guide plate and the cold air guide plate has an independent drive device, and is equipped with a controller that automatically varies according to a preset program.

Effects According to the present invention, with the above-mentioned configuration, the blowing direction of hot air can be varied in both left and right directions by a straight flow and an adhesion effect (Coanda effect) along a curved surface depending on the direction of the hot air guide plate. On the other hand, the cold air blowing direction is controlled by the cold air guide plate.
Straight flow and adhesion effect along curved surfaces (Coanda effect)
It can be adjusted both up and down. By properly setting the position of the guide vane through the above-described action, the entire room can be heated with a good indoor temperature distribution both at the start of heating and after the heating has stabilized, thereby improving comfort.

Embodiment A hot air heater according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view (cross section A-A' in FIG. 2) of an embodiment of the present invention, where 20 is a main body, 21 is a hot air fan, and a duct 24 is used to send air from the outer periphery of a burner 22 and a combustion tube 23. The warm air is guided by the warm air outlet 25 and blows out the warm air. On the other hand, a cold air fan 26 provided at the upper part of the main body 20 blows out cold air from a cold air outlet 27. The cold air outlet 27 forms curved portions 27a and 27b in the vertical direction, and is provided with a movable cold air guide plate 28 in the center. FIG. 2 is a cross-sectional view taken along the line B-B' in FIG.
5a, 25b, and are provided with movable left and right hot air guide plates 29, 30 between them and the combustion tube 23. The cold air guide plate 28, the hot air guide plate 29, and the other hot air guide plate 30 are each equipped with similar independent driving devices 28a, 29a, and 30a. 31 is a combustion blower, and 32 is a fuel tank.

The operation of the warm air heater configured as described above will be explained below with reference to FIGS. 1 to 8.

When the hot air guide plates 29 and 30 are facing forward as shown in Fig. 2, the hot air flows in a straight line, and when the hot air guide plate 29 is turned to the left and the other hot air guide plate 30 is turned to the right, the hot air flows straight. The wind from the fan 21 flows through the curved surface portion 25a.
It adheres to the surface of the hot air 25b and spreads in the direction of the hot air flow 33 (black arrow) as shown in FIG. 7A and is blown out. Note that the white arrow 34 indicates the flow of cold air, and the hatched arrow 35 indicates the indoor airflow that is a mixture of warm air and cold air.

Also, depending on the installation location or room, if only the hot air guide plate 29 is turned to the left and the other hot air guide plates 30 are turned to the front, the hot air flows 33a as shown in FIG. 7B. Therefore, even if you install the warm air heater in the right corner of the room, you can maintain a good temperature distribution. Note that 34a indicates a flow of cold air, and 35a indicates an indoor airflow.

On the other hand, when the cold air guide plate 28 is directed downward, the air from the cold air fan 26 flows to adhere to the lower curved surface portion 27b, becoming a cold air 36 as shown in FIG. Press down to send warm air to your feet. 38 indicates an indoor airflow in which cold air 36 and warm air 37 are mixed.

Further, when the cold air guide plate 28 is directed upward, the cold air flows to adhere to the upper curved surface portion 27a, and becomes a cold air 36a as shown in FIG. 6. In this case, the warm air flows as 37a, and the airflow in the room becomes 38a. In this case, since the cold air is sent toward the ceiling, it mixes with the warm air near the ceiling and comes down, improving the indoor temperature distribution.

One example is to automatically interlock the variable direction movement of the cold air and hot air described above by the control device 40 programmed in the following sequence via each drive device 28a, 29a, 30a to obtain a more comfortable living space. It is also possible to perform sequence control as shown in FIG. 8A. That is, at the beginning of heating start-up (up to 20 minutes from ignition in the example of FIG. 8), the first timer circuit 40a of the control device 40 causes the hot air guide plate (left) 29 and the hot air guide plate (right) 30 to be placed in front. By turning the cold air guide plate 28 downward, hot air is sent far as shown in FIG. 40b, the hot air guide plate (left) 29 is directed to the left, the hot air guide plate (right) 30 is directed to the right, and the cold air guide plate 28 is directed downward to spread the warm air throughout the body as shown in FIG. 7A. It heats the entire area. Furthermore, when the heating is stable after the start-up (after 60 minutes in the example of FIG. 8), the third timer circuit 40c of the control device 40 switches the cold air guide plate 28 upward, and the hot air guide plate (left) 29 and the hot air guide plate (Right) By slowly swinging the device 30 from left to right, the uncomfortable feeling of hot air hitting the face directly can be eliminated and a comfortable heated space can be obtained. Generally, the room temperature rises after the heating starts, so as a hot air heater, due to the action of the thermostat, the warm air has a short range due to its low calorie content and low air volume, and hot air tends to collect near the ceiling, so it does not use cold air. A circulator effect can be obtained by sending it toward the ceiling.

Effects of the Invention As described above, the present invention allows hot air to be blown freely to the left and right, and cold air to be blown to the top and bottom. It is possible to improve the indoor temperature distribution depending on the situation and obtain a comfortable heated space.
Further, by setting a heating sequence program using various simulations and automatically varying each hot air guide plate and cold air guide plate, the above-mentioned comfortable heated space can be automatically obtained.

Further, according to the embodiment, since the cold air suction port is provided at the bottom of the main body, relatively cold air near the feet is sucked in and blown out from above, thereby eliminating a cold air area near the feet and further improving comfort. Furthermore, since the flow of the sucked cold air passes through the inside of the main body and is blown out from above, the temperature rise in each part of the main body is suppressed and the safety and reliability of the hot air heater is improved. In particular, lowering the temperature of control components and electronic components is effective in ensuring high reliability of the electronic components. Further, the effect of cooling the inside of the main body can be expected to have secondary effects such as simplifying the heat shield plate, partition plate, etc. inside the main body of the hot air heater, and making the device itself smaller and more compact.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view taken along line A-A' in Fig. 2 in an embodiment of the hot-air heater of the present invention, Fig. 2 is a cross-sectional view taken along line B-B' in Fig. 1, and Fig. 3 is a cross-sectional view taken along line B-B' in Fig. 1. Figure 4 is an exploded perspective view of the main parts, Figure 4 is an overall perspective view of the same, Figure 5 is a vertical cross-sectional view illustrating the blowout when the cold air guide plate is oriented downward, and Figure 6 is the case when the cold air guide plate is oriented upward. Figure 7 A is a diagram explaining the wind flow when the warm air guide plate is placed on the left and right side, Figure 7 B is a diagram explaining the wind flow when the hot air guide plate is placed on the left and right side. Figure 8 explains the flow of wind when
Figure A shows the cold air guide board and hot air guide board (left) and (right).
Fig. 9 is a longitudinal cross-sectional view of the conventional example;
The figure is a longitudinal sectional view of another conventional example. 20...Main body, 21...Hot air fan, 22...
...Burner part, 23... Combustion part (combustion tube), 24...
...Hot air duct, 25...Hot air outlet, 25a,
25b...Right and left curved parts, 26...Cold air fan,
27... Cold air outlet, 27a, 27b... Upper and lower curved surface parts, 28... Cold air guide vane, 29, 30...
Hot air guide vanes, 28a, 29a, 30a...driving device.

Claims (1)

[Claims] 1. The main body includes a burner section and a combustion section, the combustion section is surrounded by a hot air duct, and a well-arranged hot air fan blows out hot air from the main body temperature air outlet, The hot air outlet forms a curved surface in both left and right directions, and hot air guide vanes are provided on each left and right between the hot air outlet and the combustion section, and each hot air guide vane is provided with a separate driving device, and the hot air guide vanes are each provided with an independent drive device, and are arranged above the hot air duct. A cold air fan is provided to blow out cold air from a cold air outlet of the main body, and the cold air outlet forms a curved surface in both the upper and lower directions,
Furthermore, a cold air guide vane is installed in the middle of the cold air outlet.
A hot air heater with a separate drive device for the cold air guide vanes. 2. The hot air heater according to claim 1, wherein the inlet of the cold air fan is provided below the main body. 3. The hot air heater according to claim 1, wherein the hot air guide vanes and the cold air guide vanes have means for automatically varying the wind direction in sequence according to a preset program via a drive device.