JPS598123Y2 - hot air heater - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a hot air heater.

Conventionally, hot air heaters, especially those that blow hot air downward, have one end opened above the gas burner 1' and the other end opened above the gas burner 1', as shown in Japanese Utility Model Publication No. 48-34113 (see Figure 2). A conduit 5' with a blower fan 4' installed in the middle is provided, and a part of the combustion hot air of the gas burner 1' is communicated with the hot air outlet 3' provided at the lower front of the heater housing 2'. Some air is discharged from the hot air outlet 3' through the hot air outlet 5'.

Note that 8' is a suction port. However, in this structure, a part of the combustion hot air of the gas burner 1' is discharged from the exhaust port 6', so that the amount of heat released from the hot air outlet 3' is small relative to the capacity of the gas burner 1'.

Another disadvantage is that the temperature not only at the front but also at the top of the outer box of the heater becomes high.

The present invention was developed in view of the above-mentioned drawbacks, and its main purpose is to provide comfortable heating by increasing the amount of heat emitted from the discharge port, as well as to effectively cool the outer box.

The structure of this invention consists of an outer box with a suction port at the top of the front and a discharge port at the bottom of the front, and combustion chambers with a top discharge port and a burner housed inside, placed at intervals around the periphery. At the same time, an air intake port is formed at the bottom of the combustion chamber that connects to the suction port through a flow path at a distance in front of the combustion chamber, and the upper part of the combustion chamber
A passage connecting the suction port and the discharge port over the back side and the bottom side is partitioned, and a branching plate is installed between the combustion chamber and the outer box extending from above the combustion chamber to the back side of the passageway, and furthermore, a branch plate is installed between the combustion chamber and the outer box in the vicinity of the discharge port of the above passageway. The feature is that a circulation fan is attached to the top.

With this arrangement, a part of the indoor air taken in by the circulation fan from the suction port is supplied from the flow path in front of the combustion chamber to the burner in the thermal combustion chamber through the air intake port and becomes hot air, and this hot air is passed through the branch plate and Since the hot air is discharged from the discharge port through the passage between the combustion chambers, the hot air is released only from the discharge port, so a large amount of heat is released, and comfortable heating is performed by blowing warm air downward.

In addition, the remaining indoor air sucked in from the suction port flows through the passage between the outer box and the branch plate to cool the upper and back portions of the outer box, and the indoor air for combustion flows through the flow path in front of the combustion chamber. As a result, the front part of the outer box is cooled, and the outer box can be cooled efficiently.

According to the above structure of the present invention, in order to effectively cool the outer box and supply combustion air, it is sufficient to provide the suction port at the front of the outer box. It has unique effects such as being able to be installed in contact with the

An embodiment of the present invention will be described below with reference to FIG.

Reference numeral 1 denotes a relatively long outer box, which has a suction port 3 at the top of the front plate 2, a discharge port 4 at the bottom, and trapezoidal legs 5 at the bottom.
is firmly attached.

Reference numeral 6 denotes a cross-flow type circulation fan installed at the bottom of the outer box 1, which is surrounded by guide plates 7, 7 on the top and bottom so that air is sucked in from the top of the fan and discharged from the discharge port 4. ing.

Reference numeral 8 denotes a vertically long and thin box-shaped combustion chamber housed in the outer box 1 at intervals forming a flow path 9 and a passage 15 on the front and back sides, respectively, and the suction port 3 is connected to the bottom through the flow path 9. An air intake port 10 connected to the combustion chamber 8 and the back plate of the outer box 1 are provided, and an exhaust port 11 is provided above, and the lower part of the back plate 12 is connected to the upper guide plate 7. 13 and upper plate 14
The passage 15 extending above, behind, and below the combustion chamber 8 is defined between the combustion chamber 8 and the combustion chamber 8.

Reference numeral 16 denotes a branch plate installed substantially parallel to the combustion chamber 8 of the passage 15 and the outer box 1 from the upper part to the back side of the combustion chamber 8 including at least the discharge port 11, and is installed substantially parallel to the combustion chamber 8 and the outer box 1. It is divided into a passage A17 located at the center and a passage B18 located outside the passage A17.

Reference numeral 19 denotes a Bunsen-type gas burner installed in the lower part of the combustion chamber 8, with the flame hole 20 facing upward.

When the burner 19 is ignited and the circulation fan 6 is driven, the burner 19 starts to burn and the combustion chamber 8 is heated.

In addition, due to the rotation of the circulation fan 6, indoor air is sucked into the outer box 1 through the suction port 3, and a part of it passes through the flow path 9 and enters the outer box 1.
While cooling the front plate 2 of the front plate 2, the air flows into the combustion chamber 8 through the air intake port 10, becomes hot air and is discharged from the exhaust port 11, and then mixes with the indoor air taken in from the suction port 3 while passing through the passage A17. It is discharged into the room again from the discharge port 4.

Therefore, all of the heat discharged from the burner 19 is discharged from the discharge port 4.

Furthermore, the other part passes through the passage B18 while cooling the top plate 14, back plate 13, and branch plate 16 of the outer box 1, and is discharged into the room again from the discharge port 4.

Further, since the gas burner 19 performs combustion within the combustion chamber 8, it is not affected by outside air, and since combustion air with less turbulence is supplied by the circulation fan 6, stable combustion can be performed.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional example. 1...outer box, 3...suction port, 4...
...Discharge port, 6...Circulation fan, 8...
...Combustion chamber, 9...Flow path, 10...Air intake, 11...Exhaust port, 15, 17.18
...Aisle, 16... Branch board, 19...
...Burna.

Claims (1)

[Scope of utility model registration request] Inside the outer box, which has a suction port at the top of the front and a discharge port at the bottom of the front, combustion chambers with a discharge port at the top and a burner stored inside are housed at intervals around the periphery. An air intake port is formed in the lower part of the chamber that communicates with the suction port through a flow path spaced in front of the combustion chamber, and a passageway that communicates the suction port with the discharge port is formed in the upper, rear, and lower parts of the combustion chamber. ,
A hot air heater in which a branch plate is installed between the combustion chamber and the outer box extending from the upper side of the combustion chamber in the passageway to the back side, and a circulation fan is installed near the outlet of the passageway.