JPH08226712A - Hot air heater - Google Patents

Abstract

PURPOSE: To increase the amount of air by decreasing a resistance of a louver while making hot air reach farther and facilitate the uniformity of the distribution of the temperature of the hot air and the cleaning of the louver. CONSTITUTION: Fixed louvers 11 and 12 are arranged at a diffuser port 10 as a roughly slope-shaped broad plate body formed smooth in such a manner that the upstream side thereof closer to a heat source is inclined upward while the upstream side thereof as side of discharging hot air is made almost horizontal or slightly upward. This reduces a resistance component of a vortex generated at end parts of the fixed louvers 11 and 12 and a resistance component in closing a sectional area of flow blowoff port 10 so that hot air from a blower 8 is blown without being weakened to improve heating touch while expanding the interval between the fixed louvers 11 and 12, thereby facilitating cleaning thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warm air heater used for heating by ejecting indoor air as warm air by utilizing heat of a heat source.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a hot air heater of this type has a main body case 14, a stand 14A on which the main body case 14 is mounted, and a main body case 14 which is disposed in the main body case 14 to burn fuel. From the burner section 15, the combustion tube 16 that covers the burner section 15 and guides the combustion exhaust gas generated in the burner section 15 upward, and the combustion exhaust gas that covers the combustion tube 16 and the blower 8 disposed in the main body case 1. Duct 18 that mixes with the indoor air flow to generate warm air, a blowout port 19 that discharges warm air from the duct 18, and a large number (four or more) that controls the flow of air in the lateral direction of the blowout port. An L-shaped fixed louver 20 is provided.

The combustion gas burned in the burner portion 15 with the above-described structure is guided upward by the combustion cylinder 16 arranged so as to cover the periphery of the burner portion 15, and the duct 17 covering the combustion cylinder 16 is provided. Is mixed with the indoor air flow from the blower 18 and is discharged as warm air through a plurality of louvers 20 provided from an outlet 19 to be used for heating.

A large number of L-shaped fixed louvers 20 are provided.
When the device is viewed from the front, the metallic luster in the blowout port 19 and the discoloration of the internal components such as the combustion cylinder 16 that become high in temperature are difficult to see and the appearance is improved. Further, the discharge-side tip portion of the fixed louver is curled 20A downward so as not to cut a hand as shown in FIG.

[0005]

However, in the warm air heater having such a structure, when passing through the outlet 19, the vortex generated at the ends of a large number of L-shaped fixed louvers 20 having a short sectional length. Rectifying effect is generated by the resistance component of the blower 17, the resistance component that closes the cross-sectional area of the outlet 19, and the vortex flow that disturbs the flow at the tip curling 20A portion, but the flow velocity of the indoor air flow from the blower 17 is weakened, and the air flow However, according to the experiment, there is a problem that the capacity is reduced by about 10%.

That is, the indoor air flow from the blower 17 is
When passing through the air outlet 19, the fixed louver 20 described above is used.
Due to the flow path resistance, the flow velocity is weakened, the air volume is reduced, and, for example, the temperature of hot air becomes high, or the distance that hot air reaches becomes short and the heating effect is reduced. Further, if the shortage is to be compensated by the capacity UP of the blower 17, etc., there are problems that noise and power consumption increase and the blower 17 itself must be replaced. And again, the curling portion 2 of the fixed louver 20.
At 0A, some of the warm air will easily flow downwards,
Further, in order to improve the feeling of heating, the warm air, which is discharged with a small specific gravity and is likely to rise, is made to reach far, and when the warm air flows downward through the angle of the fixed louver 20, the warm air is blown to the floor surface. The collision caused the floor temperature to become too high.

Further, if the combustion exhaust gas and the indoor air flow from the blower 17 are not sufficiently mixed, the hot air having the temperature unevenness is discharged from the blowout port 19 as it is, and a cold air feeling or a hot air feeling is locally generated. There was also a problem that the feeling of heating was not good.

Further, since a large number (four or more) of L-shaped fixed louvers 29 are arranged in the lateral direction of the blow-out port 19 and the intervals are small and the number is large, it is included in the indoor air flow adhering to the fixed louvers 20. There was also a problem that it was difficult to wipe off the dust and dirt.

A large number (4 or more) of L-shaped fixed louvers 20 are provided in the lateral direction of the blowout port 19, which is high in material cost and man-hours, and a chattering noise generated when the connection state is poor is connected. There is also a structural concern that the discharge port end of the fixed louver is almost flush with the front surface of the main body case in order to improve the appearance, and the outlet 19 is easily closed.

SUMMARY OF THE INVENTION The first object of the present invention is to solve the above problems, and to reduce the resistance of the fixed louver to increase the air volume and to allow the warm air to reach far and enhance the heating effect.
The second purpose is to make the distribution of the warm air temperature uniform, the third purpose is to make it easier to clean the fixed louver, and the structure of the fixed louver is simplified to reduce man-hours and costs. Is the fourth purpose.

[0011]

In order to achieve the above object, the present invention provides, in the first configuration, a main body case, a heat source provided in the main body case, and hot air for the heat source. A blower, a blower outlet for discharging warm air from the blower, and a fixed louver disposed at the blower outlet. The fixed louver has an upstream side near the heat source inclined upward and a warm air discharge side. The fixed louvers are arranged as a wide plate body having a substantially slope shape in which the downstream side of which is substantially horizontal or slightly upward is formed.

In the second structure, the main body case, the heat source provided in the main body case, the blower for supplying warm air to the heat source, and the outlet for discharging the warm air from the blower. And a fixed louver disposed in the blowout port, the blowout port is formed in a part of the width of the main body case, and the fixed louver is formed almost in the width of the main body case, and a heat source for the entire width of the width. One to three wide plate members, each having a substantially slope shape, in which the upstream side is inclined upward and the downstream side, which is the hot air discharge side, is formed so as to be substantially horizontal or slightly upward, are provided. .

In the third structure, the main body case, the heat source provided in the main body case, the blower for supplying hot air to the heat source, and the outlet for discharging the warm air from the blower. And a fixed louver disposed at this outlet, the fixed louver has a substantially slope shape in which the upstream side near the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. As the wide plate member, two or three fixed louvers are provided, and the upper tier of the fixed louver is configured such that the width of the upwardly inclined portion is sequentially made longer than that of the lower louver.

Further, in the fourth construction, the main body case, the heat source provided in the main body case, the blower for supplying hot air to the heat source, and the outlet for discharging the warm air from the blower. And a fixed louver disposed at this outlet, the fixed louver has a substantially slope shape in which the upstream side near the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. 1 to 3 fixed louvers are provided as the wide plate body, and the interval width on the downstream side of the outlets vertically divided by the fixed louver is made smaller from the top.

In the fifth configuration, the main body case, the heat source provided in the main body case, the duct for mixing the heat of the heat source and the indoor air flow from the blower to generate warm air, and the duct An outlet for ejecting warm air and a fixed louver disposed at the outlet are provided, and the fixed louver has an upstream side near the heat source inclined upward and a downstream side, which is the warm air discharge side, is substantially horizontal. Two or three fixed louvers are provided as a substantially slope-shaped wide plate member that faces a little upward, and the interval width on the downstream side of the outlets divided into upper and lower parts by the fixed louver is reduced in order from the top. ,
The upstream side of the fixed louver, which is the heat source side, has the largest gap in the middle stage.

Further, in the sixth structure, the fixed louver is rounded downward at the end portion on the discharge outlet side and folded back, and
The fixed louver has a structure in which the end face is connected so that the outer contour line on the lower face side of the louver cross-sectional shape is gentle so that the lower face side does not form a stagnation.

Further, in the seventh configuration, the main body case, the stand on which the main body case is placed, the burner portion disposed in the main body case for burning fuel, and the burner portion covering the burner portion. Combustion tube that guides the generated combustion exhaust gas upward, a duct that mixes the combustion exhaust gas that covers the combustion cylinder and the indoor air flow from the blower disposed in the main body case to generate warm air, and warm air from the duct. A fixed louver that controls the flow of air is provided in the lateral direction of the blowout port, and the end of the fixed louver on the discharge outlet side is protruded by 4 mm or more from the main body case. The amount of protrusion is within the contour of the stand.

[0018]

According to the present invention, as described above, in the first configuration, the fixed louver slants upward so that the upstream side close to the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. Since the formed wide plate body having a substantially slope shape is arranged from one to three, the resistance component of the eddy current generated when the end portion of the fixed louver is reduced is almost eliminated, and the warm air flows along the fixed louver. The warm air can be smoothly discharged from the flow outlet, and the resistance component that closes the cross-sectional area of the outlet is eliminated, and the air volume is increased. Then, the flow velocity of the indoor air from the blower is not weakened, warm air reaches far, and the heating effect is increased, and at the same time, the interval between the fixed louvers is widened to facilitate cleaning.

In the second construction, the outlet is formed in a part of the lateral width of the main body case, and the fixed louver is formed almost in the lateral width of the main body case. In the same manner, there are one to three wide plate members that are inclined in the direction and have a substantially slope-like wide plate body formed so that the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. , The resistance component of the vortex flow generated by the decrease of the end of the fixed louver is almost eliminated, and the hot air flows along the fixed louver so that the hot air can be discharged smoothly from the outlet, and the cross-sectional area of the outlet is reduced. The resistance component that closes up also disappears and the air volume increases. In addition, the indoor air flow from the blower does not weaken the flow velocity, and warm air reaches far, which increases the heating effect, and at the same time, the fixed louvers are widened to facilitate cleaning. Then, when the warm air spreads in the lateral direction, and when the blowing port is partially blocked, the warm air flows in the lateral direction of the louver portion having no blowing port, and the influence of the blocking can be reduced.

Further, in the third structure, the fixed louver has a substantially slope-like wide plate body in which the upstream side near the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. Along with two or three,
Since the upper stage of the fixed louver has a structure in which the width of the upward inclined portion is made longer in order from the lower stage, similarly, the resistance component of the vortex flow generated by the decrease of the end of the fixed louver is almost eliminated, and The hot air flows along the hot air flow and the hot air can be smoothly discharged from the air outlet, eliminating the resistance component that blocks the cross-sectional area of the air outlet and increasing the air volume.
To do. In addition, the indoor air flow from the blower does not weaken the flow velocity, and warm air reaches far, which increases the heating effect, and at the same time, the fixed louvers are widened to facilitate cleaning. Then, even when the heat of the heat source unit and the indoor air flow are insufficient, the heat of the heat source sequentially flows from above the fixed louver and is mixed between the indoor air flow and the fixed louver, and the temperature unevenness of the warm air is reduced. .

Further, in the fourth structure, the fixed louver has a substantially sloping wide plate body in which the upstream side close to the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. Since one to three are arranged and the interval width on the downstream side of the outlets vertically divided by the fixed louver is made smaller in order from the upper part, similarly,
There is almost no resistance component of the vortex flow that occurs when the end of the fixed louver decreases, and warm air flows along the fixed louver so that hot air can be discharged smoothly from the outlet, blocking the cross-sectional area of the outlet. There is also no resistance component to run and the air volume increases. In addition, the indoor air flow from the blower does not weaken the flow velocity, and warm air reaches far, which increases the heating effect, and at the same time, the fixed louvers are widened to facilitate cleaning. Then, when the device is viewed from the front, the metallic luster in the blowout port and the discoloration of the internal components such as the combustion cylinder, which become hot, become difficult to see and the appearance is improved.

In the fifth construction, the fixed louver is a substantially sloping wide plate body in which the upstream side near the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. Two to three are arranged, and the width of the downstream side of the outlets divided vertically by the fixed louver is made smaller in order from the top, and the upstream side, which is the heat source side of the fixed louver, has the largest intermediate space. Since it is configured to be large, there is almost no resistance component of the vortex flow generated by the decrease of the end of the fixed louver, and the warm air flows along the fixed louver and the warm air is smoothly discharged from the outlet. As a result, the resistance component that closes the cross-sectional area of the outlet is eliminated, and the air volume is increased. In addition, the indoor air flow from the blower does not weaken the flow velocity, and warm air reaches far, which increases the heating effect, and at the same time, the fixed louvers are widened to facilitate cleaning. Then, a large amount of heat from the heat source and the indoor air flow flows into the middle stage, where the upstream side, which is the heat source part of the fixed louver, has the widest interval. As a result, the temperature unevenness of the hot air is reduced, the hot air reaches far, and the heating effect is further improved.

Further, in the sixth structure, the fixed louver of the substantially sloping wide plate body is rounded down at the end portion on the discharge outlet side and is folded back, and the lower surface side of the fixed louver is prevented from forming a stagnation. Since the end faces are connected so that the outline of the lower surface of the louver cross-sectional shape is gentle, the discharged warm air flows along the upper and lower surfaces of the fixed louver, especially the warm air flowing on the lower surface is folded back. Since the flow is not blocked at the end of the air flow and a vortex does not occur there, the air volume does not decrease, and the warm air flows at the discharge angle of the fixed louver with the downstream side, which is the warm air discharge side, facing almost horizontally or slightly upward. As a result, the warm air can reach far away and the heating effect is improved.

Further, in the seventh structure, since the end of the fixed louver on the discharge outlet side is protruded by 4 mm or more from the main body case and the amount of the protrusion is within the outline of the stand, for some reason, the blowout is performed. Even if the mouth is blocked, the tip of the pedestal and the fixed louver are not completely blocked, and the safety is further improved.

[0025]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

First, referring to FIGS. 1 and 2, the structure of a warm air warming apparatus using the combustion apparatus of the present invention will be described. Reference numeral 1 is a main body case, and a tank 2 holding a liquid fuel on the lower side thereof. A removable cartridge tank 3 is arranged above the tank 2. Reference numeral 4 denotes a pump mounted on the upper surface of the tank 2, which supplies fuel from the upper end thereof to the burner section 6 via the oil supply pipe 5.

Reference numeral 7 is a combustion cylinder for guiding the combustion gas from the burner portion 6 upward, and a blower 8 for taking in and delivering the indoor air flow is arranged at the back of the combustion cylinder. Reference numeral 9 is a duct for mixing the combustion gas from the combustion cylinder 7 and the indoor air flow to generate warm air.

Reference numeral 10 denotes an outlet for discharging warm air from the duct 7, which is formed in a part of the lateral width of the main body case. In this embodiment, two fixed louvers 11 and 12 for controlling the flow of warm air are provided. I am doing it.

The fixed louvers 11 and 12 are formed so as to substantially fill the lateral width of the main body case 1, the upstream side near the heat source of the entire lateral width is inclined upward, and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly. It is a wide plate body having a substantially slope shape that is formed smoothly so as to face upward, and the upper tier 11 of the fixed louver has a configuration in which the width of the upward sloping portion is sequentially made longer than that of the lower tier 12.

The interval width on the downstream side of the outlets 10 divided into upper and lower parts by the fixed louvers 11 and 12 is reduced in order from the top at a ratio of about 3: 2: 1, and the fixed louvers 11 and 12 on the heat source side. The upstream side of the fixed louvers is configured such that the middle stage is the largest, and the ends of the fixed louvers 11 and 12 on the discharge outlet side are rounded downward as shown in FIG. In order to prevent the side from forming a stagnation, the end face is connected so that the outline of the lower surface side of the louver cross section is gentle, and the ends of the fixed louvers 11 and 12 on the discharge outlet side are connected to the main body case 1. 4 mm or more, and the amount of protrusion is within the contour of the stand 1A.

Reference numeral 13 is a control unit for controlling the combustion of the burner unit 6 and the blower 8. The control unit 13 controls the pump 4, the blower 8 and the like in a predetermined sequence based on the operating condition signal input from the operation unit. Has become.

In the above structure, the cartridge tank 3
The liquid fuel supplied from the tank 2 to the tank 2 so as to maintain a constant oil level is sucked up from the tank 2 by the pump 4, sent to the burner section 6 via the oil supply pipe 5, and burned. Then, the generated combustion gas flows above the combustion cylinder 7, is mixed with the indoor air flow from the blower 8 in the duct 9, is discharged as warm air, and is used for heating. And
The control unit 13 controls the pump 4, the blower 8 and the like in a predetermined sequence based on the conditions set by the operation unit to perform operation control such as changing the combustion amount.

Here, the fixed louvers 11 and 12 have a substantially slope-like wide width in which the upstream side close to the heat source is inclined upward and the downstream side, which is the hot air discharge side, is formed so as to be substantially horizontal or slightly upward. Since the two plate members are arranged, the resistance component of the vortex generated by the reduction of the end portions of the fixed louvers 11 and 12 is almost eliminated.

Further, the hot air flows along the fixed louvers 11 and 12, and the resistance component for closing the cross-sectional area of the blowout port 10 is eliminated, and the hot air can be smoothly discharged from the blowout port. When there is a fixed louver, the air volume is increased by about 10% to 20% compared to when there is no fixed louver.
Then, the flow velocity of the indoor air flow from the blower 8 is not weakened, and the warm air reaches far and the heating effect is also increased.

If the vertical width of the outlet 10 is about 90 mm, the downstream spacing of the outlets 10 divided vertically by the fixed louvers 11, 12 is about 45 mm, about 30 mm, about 30 mm from the top. Since it is 15 mm, the distance between the fixed louvers 11 and 12 is widened so that fingers can be inserted easily and cleaning is easy.

Further, since the blowout port 10 is formed in a part of the width of the main body case 1 and the fixed louvers 11 and 12 are formed almost in the full width of the main body case 1, the warm air spreads in the horizontal direction and When the blowout port 10 is partially blocked, the warm air has a fixed louver 11 without the blowout port 10,
It is possible to reduce the effect of blockage by flowing the 12 parts in the lateral direction.

Further, since the fixed louver upper stage 11 has a structure in which the width of the upwardly inclined part is made longer in order from the lower stage 12, even if the heat and the indoor air flow of the burner part 6 are insufficient. Heat of the fixed louvers 11 and 12 flows in order from above, and the indoor air flow and the fixed louvers 11 and 1
The two are mixed and the temperature unevenness of the warm air is reduced.

Further, since the interval width on the downstream side of the outlet 10 divided into upper and lower parts by the fixed louvers 11 and 12 is made smaller in order from the upper part, the inside of the outlet 10 is seen when the device is viewed from the front. The metallic luster and discoloration of the internal components such as the combustion cylinder 7 that become hot become difficult to see, and the appearance is improved.

Further, the width of the downstream side of the outlets 10 divided vertically by the fixed louvers 11 and 12 is made smaller from the top, and the distance between the fixed louvers 11 and 12 on the upstream side of the burner portion 6 is set to be smaller. Since the middle stage is configured to be the largest, a large amount of heat and indoor air flow of the burner part 6 flows into the middle stage, where the upstream side of the fixed louvers 11, 12 that is the burner part 6 has the widest interval, and the interval is narrow. Then, it is mixed between the fixed louvers 11 and 12 and is discharged vigorously from the hot air discharge side, and the temperature unevenness of the hot air is reduced, and
The warm air reaches far away, further improving the heating effect.

Further, the fixed louvers 11 and 12 of the substantially sloping wide plate body are bent at the ends on the discharge outlet side by being rounded downward and folded back, and the lower surfaces of the fixed louvers 11 and 12 are prevented from forming stagnation. Since the end faces are connected so that the contour line on the lower surface side of the louver cross-sectional shape is gentle, the discharged hot air flows along the upper and lower surfaces of the fixed louvers 11 and 12, especially the hot air flowing on the lower surface. Since the flow is not obstructed at the folded end portions of the fixed louvers 11 and 12 and a vortex does not occur there, the fixed louver 11 does not reduce the air volume and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. The hot air flows at the discharge angles of 12 and 12, and the hot air can reach far, thereby improving the heating effect.

Further, since the ends of the fixed louvers 11 and 12 on the discharge outlet side are protruded by 4 mm or more from the main body case 1 and the amount of protrusion is within the outline of the stand,
Even if the blowout port is blocked for some reason,
The tip of the pedestal 1A and the fixed louvers 11 and 12 can be prevented from being completely blocked, and the safety can be further improved.

In the above-mentioned embodiment, the fixed louvers 11 and 1 are designed with the vertical dimension of the blowout port being around 100 mm.
Although the two louvers 2 have been described, this is because the fixed louver 11 is one when the vertical dimension of the outlet is about 50 mm.
The number of fixed louvers may be three when the number of outlets is about 150 mm in the vertical direction. As long as this ratio is a range that achieves the object of the present invention, what is the configuration thereof? It may be anything. Also,
Although the combustion device using the burner part for burning the fuel is used as the heat source, this may be a heat source such as an electric heater.

Further, the blowout port 10 is formed in a part of the lateral width of the main body case 1, and the fixed louvers 11 and 12 are formed so as to be substantially full in the lateral width of the main body case 1, and the substantially sloping wide plate body is fixed. The louvers 11 and 12 have a configuration in which the width of the upward inclined portion of the louvers 11 and 12 is sequentially made longer than that of the lower louvers, and the outlets 10 that are vertically divided by the fixed louvers 11 and 12.
The interval width on the downstream side of the fixed louvers 11 and 12 is made smaller from the top, and the interval on the upstream side of the fixed louvers 11 and 12 on the burner section 6 side is the largest in the middle stage. The end on the outlet side is rounded downward and folded back, and the outer surface of the fixed louvers 11, 12 has a gentle outer contour line so that the lower surfaces of the fixed louvers 11, 12 do not form stagnation. And the structure in which the ends of the fixed louvers 11 and 12 on the discharge outlet side are protruded by 4 mm or more from the main body case 1 and the protrusion amount is within the outline of the cradle 1A. This may be configured individually, and the configuration of each of the other parts may be any configuration as long as the object of the present invention is achieved.

[0044]

As described above, according to the warm air heater of the present invention, one fixed louver for controlling the flow of warm air is provided at the outlet for discharging warm air formed in a part of the width of the main body case. In addition to arranging three, the fixed louver is formed almost to the full width of the main body case, the upstream side near the heat source of the entire width is inclined upward, and the downstream side, which is the hot air discharge side, is almost horizontal. It is a wide plate body having a substantially slope shape that is smoothly formed so as to face upward, and the upper stage of the fixed louver has a configuration in which the width of the upward inclined portion is sequentially made longer than that of the lower stage.

Further, the interval width on the downstream side of the outlets vertically divided by the fixed louver is made smaller in order from the upper part, and the upstream distance on the heat source side of the fixed louver is made the largest in the middle stage. As well as
The end of the fixed louver on the discharge outlet side was rounded downward and folded back, and the end surface of the fixed louver was connected so that the outer surface of the louver cross-sectional shape was gentle so that the lower surface did not form a stagnation. As a configuration, also,
The end of the fixed louver on the discharge outlet side is projected by 4 mm or more from the main body case, and the amount of projection is within the outline of the stand.

Therefore, the resistance component of the vortex generated by the reduction of the end portion of the fixed louver is almost eliminated, and the warm air flows along the fixed louver so that the hot air can be smoothly discharged from the discharge port. The resistance component that closes the cross-sectional area of is also eliminated, and the air volume increases. In addition, the indoor air flow from the blower does not weaken the flow velocity, and warm air reaches far, which increases the heating effect, and at the same time, the fixed louvers are widened to facilitate cleaning.

Further, when the hot air spreads in the lateral direction and the blowing port is partially blocked, the warm air flows in the lateral direction of the louver portion having no blowing port, and the influence of the blocking can be reduced. .

Even when the heat of the heat source and the indoor air flow are insufficient, the heat of the heat source flows sequentially from above the fixed louver and is mixed between the indoor air flow and the fixed louver, resulting in uneven temperature of the warm air. Is reduced.

Further, when the device is viewed from the front, it is difficult to see the metallic luster in the blowout port and the discoloration of the built-in components such as the combustion cylinder which becomes hot, and the appearance is improved.

In addition, a large amount of heat from the heat source and the indoor air flow flows into the middle stage having the widest space on the upstream side, which serves as the heat source of the fixed louver, and the space is narrowed to mix between the fixed louvers and the hot air exhaust side. The hot air is discharged vigorously to reduce the temperature unevenness of the hot air, and the hot air reaches far away, further improving the heating effect.

Further, the discharged warm air flows along the upper and lower surfaces of the fixed louver of the substantially sloping wide plate body, and in particular, the warm air flowing on the lower surface does not obstruct the flow at the folded end of the louver and swirls there. As a result, the air volume does not decrease, and the warm air flows at the discharge angle of the fixed louver with the downstream side, which is the warm air discharge side, facing almost horizontally or slightly upward, so that the warm air reaches far away. And the heating effect is improved.

Since the end of the fixed louver on the discharge outlet side is protruded by 4 mm or more from the main body case and the amount of the protrusion is within the outline of the stand, the blowout port may be blocked for some reason. However, since the tip of the stand and the fixed louver are not completely blocked, the safety can be maintained, and the effect is great.

[Brief description of drawings]

FIG. 1 is a sectional view of a warm air heater according to an embodiment of the present invention.

[Fig. 2] Front view of the hot air heater

FIG. 3 is a cross-sectional view of the main parts of the hot air heater.

FIG. 4 is a sectional view of a conventional warm air heater.

FIG. 5 is a cross-sectional view of the main parts of the hot air heater.

[Explanation of symbols]

 1 Main body case 6 Burner section 8 Blower 9 Duct 10 Blow-out port 11 Fixed louver 12 Fixed louver

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kazutada Momoda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Tomoya Kawaguchi 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Motoshun Shintani 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor, Keiro Kanda, 1006 Kadoma, Kadoma-shi, Osaka (72) Inventor Harada Tohru 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (9)

[Claims] 1. A body case, a heat source provided in the body case, and a blower for supplying warm air to the heat source.
A blower outlet for discharging warm air from the blower and a fixed louver disposed in the blower outlet are provided, and the fixed louver is inclined toward the upstream side close to the heat source and is the warm air discharge side on the downstream side. As a wide plate body with a substantially slope shape that is formed so as to be almost horizontal or slightly upward 1
A warm air heater arranged from three books. 2. A main body case, a heat source provided in the main body case, and a blower for supplying warm air to the heat source.
An outlet for discharging warm air from the blower and a fixed louver disposed in the outlet are provided, the outlet is formed in a part of the width of the main body case, and the fixed louver is almost full width of the main case. As a wide plate with a substantially slope shape that is formed in a slanting shape so that the upstream side near the heat source of the entire lateral width is inclined upward and the downstream side that is the hot air discharge side is almost horizontal or slightly upward. Hot air heater with 1 to 3 heaters. 3. A body case, a heat source provided in the body case, and a blower for supplying warm air to the heat source,
A blower outlet for discharging warm air from the blower and a fixed louver disposed in the blower outlet are provided, and the fixed louver is inclined toward the upstream side close to the heat source and is the warm air discharge side on the downstream side. As a wide plate with a substantially slope shape that is formed so that
A warm air heater in which three to three are provided, and the width of the upward slope of the fixed louver is sequentially increased from that of the lower louver. 4. A body case, a heat source provided in the body case, and a blower for supplying warm air to the heat source,
A blower outlet for discharging warm air from the blower and a fixed louver disposed in the blower outlet are provided, and the fixed louver is inclined toward the upstream side close to the heat source and is the warm air discharge side on the downstream side. As a wide plate body with a substantially slope shape that is formed so as to be almost horizontal or slightly upward 1
A warm air heater in which three to three pieces are arranged, and the interval width on the downstream side of the outlets vertically divided by the fixed louver is made smaller from the top. 5. A main body case, a heat source provided in the main body case, a duct for mixing the heat of the heat source with the indoor air flow from the blower to generate warm air, and a blower for discharging warm air from the duct. The fixed louver is provided with a mouth and a fixed louver arranged at the outlet, and the fixed louver has a smoothness such that the upstream side near the heat source is inclined upward and the downstream side, which is the hot air discharge side, is substantially horizontal or slightly upward. 2 to 3 are provided as substantially slope-shaped wide plate members formed in the above, and the interval width on the downstream side of the outlets vertically divided by the fixed louver is reduced in order from the top, and the heat source of the fixed louver is also provided. The warm air heater is designed so that the upstream side, which is the side of the space, is the largest in the middle stage. 6. The two fixed louvers are arranged, and the intervals between the outlets of the outlets vertically divided by the fixed louver on the discharge outlet side are reduced in order from the top at a ratio of about 3: 2: 1. The warm air heater according to claim 1, claim 2, claim 3, claim 4, or claim 5. 7. The width of the outlet in the height direction is about 50.
When the width of the outlet is about 1 mm, one fixed louver is provided. When the width of the outlet in the height direction is about 100 mm, two fixed louvers are provided, and the width of the outlet in the height direction is about 1 mm.
When the distance is about 50 mm, three fixed louvers are provided. Claims 1, 2, 3, 4 or 5
The warm air heater described in the item. 8. The fixed louver has an end on the discharge outlet side which is rounded downward and folded back, and the end face of the fixed louver has a gentle outer contour line on the lower surface side of the fixed louver so that the lower surface does not form a stagnation. The hot-air heater according to claim 1, claim 2, claim 3, claim 4, or claim 5 which is connected so as to be. 9. A main body case, a stand on which the main body case is placed, a burner portion disposed in the main body case for burning fuel, and a combustion exhaust gas generated in the burner portion which covers the burner portion and is directed upward. A combustion tube that guides to, a duct that mixes the combustion exhaust gas that covers the combustion tube and the indoor air flow from the blower disposed in the main body case to generate warm air, and an outlet that discharges the warm air from the duct. A fixed louver for controlling the flow of air is provided in the lateral direction of the blowout port, and the end of the fixed louver on the discharge outlet side is 4 m away from the main body case.
A warm air heater that projects more than m and the amount of projection is within the outline of the stand.