JP2022168473A - Warm air heating device - Google Patents

Abstract

To provide a warm air heating device capable of preventing rising of blown-out warm air.SOLUTION: A movable louver 6 is disposed on a warm air blowout port 4. The movable louver 6 has: a first movable louver 61 movable around a first rotating shaft 81; and a second movable louver 62 disposed below the first movable louver 61 and movable around a second rotating shaft 82. As a length from a tip of the first movable louver 61 to the first rotating shaft 81 in an opening state of the first movable louver 61 and the second movable louver 62 is longer than a length from a tip of the second movable louver 62 to the second rotating shaft 82, the tip of the first movable louver 61 is positioned in front of the tip of the second movable louver 62, thus the warm air guided downward by the first movable louver 61 reaches more forward in comparison with a conventional first movable louver 61, and the warm air guided by the second movable louver 62 can reach further without flowing up.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to a warm air heater, and more particularly to a warm air heater having movable louvers.

Conventionally, in this type of device, a first movable louver and a second movable louver are provided above and below the hot air outlet, and the first movable louver and the second movable louver are moved in different swing angle ranges. By controlling the hot air blowing out from the hot air outlet, excessive temperature rise on the floor surface is suppressed, and temperature unevenness in the room is eliminated, and the user's feet and shoulders are evenly warmed. was there. (For example, Patent Document 1)

JP 2018-200152 A

By the way, in this conventional device, if the second movable louver provided below the hot air outlet is oriented too downward, the hot air will hit the floor directly and the floor will be overheated. It will be slightly downward from the horizontal direction.
As a result, the hot air guided by the second movable louver is blown slightly downward from the horizontal direction so as not to hit the floor. The first movable louver is directed downward, and the hot air guided by the first movable louver blows out from above so as to suppress the warm air guided by the second movable louver, so that the warm air reaches a long distance. I was doing

However, if the downward angle of the first movable louver is increased in order to further suppress the hot air guided by the second movable louver by the hot air guided by the first movable louver, the second movable louver will become as shown in FIG. The tip of the second movable louver is positioned in front of the tip of the first movable louver by the length t, and the warm air guided by the first movable louver is guided to the tip of the second movable louver. Therefore, even if the downward angle of the first movable louver is increased, the distance that the warm air reaches does not increase.

In order to solve the above problems, according to claim 1 of the present invention, there is provided a hot air heating device for heating by blowing out hot air, comprising an appliance main body, a combustion section installed in the appliance main body, and a hot air A convection fan that sends out hot air, a hot air outlet that blows hot air, a control unit that controls the operation, a movable louver that is disposed at the hot air outlet, and the movable louvers that swing within a predetermined swing angle range. The movable louvers include a first movable louver that is movable about a first rotation shaft, and a second rotation shaft that is disposed below the first movable louver. and a second movable louver that moves about the center, and the first rotation axis extends from the tip of the first movable louver when the first movable louver and the second movable louver are in an open state. is longer than the length from the tip of the second movable louver to the second rotating shaft.

Further, in claim 2, the inter-axis distance between the first rotating shaft and the second rotating shaft is such that the lower portion of the rotating shaft of the first movable louver and the second movable louver can be moved forward. and the length from the tip of the first movable louver to the first rotating shaft and the length from the rear end of the second movable louver to the second rotating shaft when the closed state is changed to the open state. It is the sum of the

Further, in claim 3, the inter-axis distance between the first rotating shaft and the second rotating shaft is such that the upper part of the rotating shaft of the first movable louver and the second movable louver can be moved forward. and the length from the rear end of the first movable louver to the first rotating shaft and the length from the tip of the second movable louver to the second rotating shaft when the closed state is changed to the open state. It is the sum of the

According to claim 1 of the present invention, when the first movable louver and the second movable louver are opened, the length from the tip of the first movable louver to the first rotating shaft is Since the length from the tip of the second movable louver to the second rotating shaft is longer than the length from the tip of the second movable louver, the tip of the first movable louver remains below the first movable louver even if the tip of the first movable louver is directed downward. The warm air guided by the second movable louver can be suppressed by the warm air guided by the first movable louver. It can reach far.

In addition, when the first movable louver and the second movable louver are opened, the ratio of the distance between the rear ends of the two louvers to the distance between the rear ends of the two louvers can be made smaller than before. By increasing the speed of the wind, the warm air can reach farther.

Further, according to claim 2, the inter-axis distance between the first rotating shaft and the second rotating shaft is such that the lower portion of the rotating shaft of the first movable louver and the second movable louver is forward. and the length from the tip of the first movable louver to the first rotating shaft when it is moved from the closed state to the open state, and the length from the rear end of the second movable louver to the second rotating shaft. Since it is the sum of the lengths, when moving the lower part of the first movable louver and the second movable louver forward from the rotating shaft to open the state, when moving from the open state to the closed state, the above The hot air outlet can be fully closed without contact between the first movable louver and the second movable louver.

Further, according to claim 3, the inter-axis distance between the first rotating shaft and the second rotating shaft is such that the upper part of the rotating shaft of the first movable louver and the second movable louver is forward. and the length from the rear end of the first movable louver to the first rotating shaft when the movable louver is moved from the closed state to the open state, and the length from the tip of the second movable louver to the second rotating shaft. Since it is the sum of the lengths, when moving the upper part of the first movable louver and the second movable louver forward from the rotating shaft to open the state, when moving from the open state to the closed state, the above The hot air outlet can be fully closed without contact between the first movable louver and the second movable louver.

1 is an external perspective view of a warm air heating device showing an embodiment of the present invention; FIG. The same side view sectional view. The perspective view which shows the movable louver in the same closed state. The perspective view which shows the movable louver in the state of the fixed attitude|position. The same side view schematic. FIG. 2 is a schematic side view showing a conventional movable louver in a fixed posture.

Next, one embodiment to which the present invention is applied will be described based on the drawings.
As shown in FIGS. 1 and 2, the warm air heating device 1 according to the present embodiment is a heating device that blows out warm air to raise the indoor temperature.

As shown in FIG. 2, the hot air heating device 1 includes an appliance main body 11, a combustion unit 2 for burning fuel oil, a convection fan 3 for sending hot air, a hot air outlet 4, and a hot air outlet frame. 5, a movable louver 6, a swing device 8 for swinging the movable louver 6 within a predetermined swing angle range, and a controller 9 for controlling the operation.
For convenience of explanation, the warm air heating device 1 is referred to as left-right, front-rear, and up-down directions as viewed from the user.

As shown in FIG. 1, the instrument main body 11 includes a front panel 11a, an operation section 12 having various switches, and a liquid crystal panel 13 for displaying operation contents and the like. The operation unit 12 is provided with an operation switch 12a, a louver operation switch 14, and various other switches.
The louver operating switch 14 is a switch for giving a command to the control section 9 to swing the movable louver 6 within a predetermined swinging angle range.

The combustion unit 2 is a device for burning fuel oil, and the combustion unit 2 includes a vaporizer 21 for vaporizing fuel oil, a vaporization heater (not shown) for heating and vaporizing fuel oil, and an igniter for igniting by spark discharge. (not shown), a burner 22 that burns fuel such as vaporized petroleum, a combustion cylinder 23 that forms a combustion space, a combustion fan 24 that blows combustion air to the burner 22, and an air pipe 25. ing.

The convection fan 3 is attached via a fan guard 31 to the hot air intake on the back. A blowing box 32 is arranged from the convection fan 3 to the hot air outlet 4. - 特許庁The blower box 32 is provided with a blower box opening 33 on the front surface, and guides the warm air blown by the convection fan 3 from the blower box opening 33 to the hot air outlet 4 .

The hot air outlet 4 is an opening for blowing hot air forward into the room, and is provided in the front panel 11a.
The hot air outlet frame 5 is arranged so as to surround the hot air outlet 4, as shown in FIG.
The warm air outlet frame 5 includes a pair of side plates 51 and 52 , a lower plate 53 and an upper plate 54 .

The pair of side plates 51 and 52 includes a left side plate 51 arranged on the left side of the hot air outlet 4 and a right side plate 52 arranged on the right side. The lower plate 53 is closed so as to cover the lower part of the hot air outlet 4 . The upper plate 54 is closed so as to cover the warm air outlet 4 from above.

The movable louvers 6 are arranged at the hot air outlet 4, and consist of a first movable louver 61 arranged on the upper stage, a second movable louver 62 arranged below the first movable louver 61, It has
In the following description, the movable louvers 6 (61, 62) are collectively referred to as the movable louver 6 when there is no need to distinguish between the first movable louver 61 and the second movable louver 62. do.

The movable louver 6 has a closed state shown in FIG. 3, a fixed posture in which hot air is sent in a predetermined stationary posture shown in FIG. 4, and a movable posture in which it swings within a predetermined swing angle range.
The closed state shown in FIG. 3 is a state in which operation is stopped. The fixed posture shown in FIG. 4 is a state in which the movable louver 6 is fixed at a predetermined angle and the vehicle is operated. The movable posture is a posture in which a rocking motion (swing motion) is performed.

The angle of the movable louver 6 in the fixed posture is, for example, when the combustion power of the combustion unit 2 (see FIG. 2) is "strong", the first movable louver 61 is 71 degrees, and the second movable louver 62 is 83 degrees. degree. Similarly, when the combustion power of the combustion unit 2 (see FIG. 2) is "medium to low", the first movable louver 61 is 71 degrees and the second movable louver 62 is 83 degrees.

As for the swinging angle range in the swinging operation of the warm air heating device 1, when the combustion power is "strong", the swinging angle range is 85 to 64 degrees for the first movable louver 61 and 85 degrees for the second movable louver 62. 83 degrees. The swing angle refers to the angle of the movable louver 6 with respect to the vertically downward direction, and the predetermined swing angle range includes 0 degree. Further, when the combustion power is "medium to low", the swing angle range is 85 to 52 degrees for the first movable louver 61 and 83 to 69 degrees for the second movable louver 62. FIG.

As shown in FIG. 4, the swing device 8 includes a first shaft 81 that supports the first movable louver 61 on the pair of side plates 51 and 52, and a second movable louver 62 on the pair of side plates 51 and 52. a second shaft 82 pivotally supported by 52; a swing angle regulation mechanism 83 that regulates the swing angle range of the movable louvers 6 (61, 62); a drive section 84 that swings the movable louvers 6; and a photosensor 90 which is detecting means for detecting that the has reached a predetermined reference posture.

When the downward inclination angle of the first movable louver 61 is increased while the movable louver 6 is movable to open the hot air outlet 4, as shown in FIG. A is the length from the rear end to the first shaft 81; B is the length from the rear end to the first shaft 81; a is the length from the tip of the second movable louver 62 to the second shaft 82; When the length to the shaft 82 is b, the length from the tip of the first movable louver 61 to the first shaft 81 is A, and the length from the tip of the second movable louver 62 to the second shaft 82 is a. formed longer.

As a result, even if it is tilted at the same angle as the conventional one shown in FIG. Since the hot air guided by the second movable louver 62 reaches further forward than the conventional first movable louver 61 shown in FIG. can.

Also, the length A from the tip of the first movable louver 61 to the first shaft 81 is always located forward of the tip of the second movable louver 62 in the swing angle range of the first movable louver 61. Since the length of the first movable louver 61 and the second movable louver 62 are set in a predetermined swing angle range, the first movable louver 61 and the second movable louver 62 swing when the user selects the movable posture. 5, the tip of the first movable louver 61 is always positioned in front of the tip of the second movable louver 62 by a length T, and is downwardly moved by the first movable louver 61. The guided hot air always suppresses the hot air guided to the second movable louver 62 from above to prevent the hot air from floating up, and the hot air can reach farther.

The hot air blown forward from the blow box opening 33 in front of the blow box 32 passes through the warm air outlet 4 from the blow box opening 33 and is blown forward from the fixture body 11, as shown in FIG. Second, in order to make the length A from the tip of the first movable louver 61 to the first shaft 81 longer than the length a from the tip of the second movable louver 62 to the second shaft 82, The inter-axis distance M to the second shaft 82 is longer than the conventional inter-axis distance m from the first shaft 181 to the second shaft 182 shown in FIG.

As a result, the range of the distance D between the rear end of the first movable louver 61 and the rear end of the second movable louver 62 includes the hot air passing near the upper end of the blower box opening 33, and The hot air near the upper end of the opening 33 also passes below the first movable louver 61, and the amount of hot air guided downward by the first movable louver 61 increases. It is possible to suppress floating of the guided warm air and allow the warm air to reach a longer distance.

Also, the length A from the tip of the first movable louver 61 to the first shaft 81 is longer than the length a from the tip of the second movable louver 62 to the second shaft 82, and from the first shaft 81 By making the distance M between the shafts to the second shaft 82 longer than the conventional distance m shown in FIG. The ratio of the distance E between the front end of the first movable louver 61 and the front end of the second movable louver 62 to the distance D between the rear end of the first movable louver 61 and the rear end of the second movable louver 62 is the conventional louver shown in FIG. smaller than the ratio of the distance e between the front end of the first movable louver 161 and the rear end of the second movable louver 162 to the distance d between the rear end of the first movable louver 161 and the rear end of the second movable louver 162; In other words, since the hot air can be squeezed more easily than the conventional one shown in FIG. , and the warm air can reach farther.

?? The first shaft 81 and the second shaft 82 are arranged along the horizontal direction. As a result, the first movable louver 61 swings and rotates in the vertical direction around the first shaft 81 arranged in the horizontal direction. The second movable louver 62 swings and rotates in the vertical direction around a second shaft 82 arranged in the horizontal direction.

In addition, as in the present embodiment, the movable louver 6 is arranged in a vertical state in which the hot air outlet 4 is closed, and the portion below the first shaft 81 and the second shaft 82 of the movable louver 6 protrudes forward. When opening the hot air outlet 4, the sum of the length A from the tip of the first movable louver 61 to the first shaft 81 and the length b from the rear end of the second movable louver 62 to the second shaft 82 , the distance M between the first shaft 81 and the second shaft 82 is the same. The movable louvers 61 and the second movable louvers 62 can also close the hot air outlet 4 without spoiling the appearance.

In addition, unlike the present embodiment, the movable louver 6 is arranged so that the portion above the first shaft 81 and the second shaft 82 protrudes forward from the state in which the movable louver 6 closes the hot air outlet 4 in the vertical state. When opening the hot air outlet 4, the sum of the length B from the rear end of the first movable louver 61 to the first shaft 81 and the length a from the tip of the second movable louver 62 to the second shaft 82 , the distance M between the first shaft 81 and the second shaft 82 is the same. The movable louvers 61 and the second movable louvers 62 can also close the hot air outlet 4 without spoiling the appearance.

(2) The operation of the warm air heater 1 according to the embodiment of the present invention configured as above will be described.
(2) The control unit 9 starts the heating operation when the operation switch 12a is operated by the user (not shown). At this time, the user can use the louver actuation switch 14 to select between a predetermined fixed posture and a swing motion (swing motion), which is a movable posture for swinging within a predetermined swing angle range.

With such a configuration, the user of the hot air heating device 1 can preferentially warm the trunk part of the body by the fixed posture of the movable louver 6, or uniformly warm the body from the feet to the shoulders by the rocking motion. can be done.

When the fixed posture is selected by the user, the controller 9 moves the movable louver 6 downward from the first shaft 81 and the second shaft 82 forward from the state in which the movable louver 6 is closed (FIG. 3). Move it to a predetermined fixed posture by protruding. Specifically, in the fixing operation when the combustion power is "strong", the first movable louver 61 is moved up to 71 degrees, and the second movable louver 62 is moved up to 83 degrees.

At this time, the tip of the first movable louver 61 is located in front of the tip of the second movable louver 62, so that the hot air guided downward by the first movable louver 61 moves to the conventional first movable louver. Since it reaches the front of the louver 61, the warm air guided by the second movable louver 62 can reach farther without floating.

Further, when the movable posture is selected by the user, the control unit 9 starts the swinging motion of the movable louver 6, and swings the first movable louver 61 and the second movable louver 62 respectively in a predetermined manner. Oscillate within the range of motion angle.

The oscillating motion differs depending on whether the combustion power of the burner 22 is "strong" or "medium to weak". , starting from a predetermined fixed position, moving upward, and reaching the upper limit position is detected by the photosensor 90 at the upper limit position (see FIG. 4).
After that, it swings downward from the upper limit position to the lower limit position and then swings back to a predetermined fixed position at the start so as to repeat one cycle.

Since the tip of the first movable louver 61 is always positioned forward of the tip of the second movable louver 62 from the beginning to the end of one cycle of this swing operation, the first movable louver 61 guides downward. The warm air guided by the second movable louver 62 can be prevented from floating and can reach farther from the beginning to the end of one cycle of the swinging motion.

2 Combustion part 3 Convection fan 4 Hot air outlet 6 Movable louver 8 Swing device 9 Control part 11 Instrument main body 61 First movable louver 62 Second movable louver 81 First axis (first rotation axis)
82 second axis (second rotation axis)

Claims (3)

A warm air heating device for heating by blowing out hot air, comprising: an appliance main body, a combustion part installed in the appliance main body, a convection fan for blowing out warm air, a hot air outlet for blowing out warm air, and an action a control unit for controlling the hot air outlet, a movable louver disposed at the hot air outlet, and a swing device for swinging the movable louver within a predetermined swing angle range, wherein the movable louver is a first movable louver movable about one rotation axis; and a second movable louver disposed below the first movable louver and movable about a second rotation axis, The length from the tip of the first movable louver to the first rotating shaft when the first movable louver and the second movable louver are opened is determined from the tip of the second movable louver to the above-mentioned A hot-air heating device characterized in that it is provided longer than the length up to the second rotating shaft. The inter-axis distance between the first rotating shaft and the second rotating shaft is changed from the closed state to the open state by moving the lower portion forward of the rotating shaft of the first movable louver and the second movable louver. and the sum of the length from the tip of the first movable louver to the first rotating shaft and the length from the rear end of the second movable louver to the second rotating shaft when The warm air heating device according to claim 1. The distance between the first rotating shaft and the second rotating shaft is changed from the closed state to the open state by moving the upper part of the rotating shaft of the first movable louver and the second movable louver forward. The sum of the length from the rear end of the first movable louver to the first rotating shaft and the length from the tip of the second movable louver to the second rotating shaft when The warm air heating device according to claim 1.

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