JP2018200152A - Warm air heater - Google Patents

Abstract

To eliminate unevenness of an indoor temperature while suppressing an excessive temperature rise of a floor surface so as to evenly warm feet to shoulders of a user.SOLUTION: A warm air heater includes: an apparatus body; a combustion section installed in the apparatus body; a convection fan for sending out warm air; a warm air blowout port for blowing out the warm air; a control section for controlling operation; a movable louver 6 installed at the warm air blowout port 4; and an oscillation device 8 for oscillating the movable louver 6 in a predetermined oscillation angle range. The movable louver 6 includes: a first movable louver; and a second movable louver disposed below the first movable louver. A control section adjusts a posture of the first movable louver 61 in a first oscillation angle range and adjusts a posture of the second movable louver 62 in a second oscillation angle range that is different from the first oscillation angle range by using the oscillation device.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a hot air heater, and more particularly, to a hot air heater provided with a movable louver.

  2. Description of the Related Art Conventionally, a warm air heating device provided with a movable louver has been known for the purpose of reducing temperature unevenness at room temperature (see, for example, Patent Document 1). The hot air heating apparatus described in Patent Document 1 swings the movable louver within a set angle range until reaching the set temperature, and when the set temperature is reached, the hot air is heated to the floor surface according to the combustion level. The angle of the movable louver is changed and fixed so that the air is blown.

Japanese Utility Model Publication No. 5-64648 (see abstract, see FIGS. 4 and 5)

  However, although the hot air heating device described in Patent Document 1 can appropriately set the direction in which the hot air is discharged by swinging the movable louver or changing the angle, Since the quality and characteristics of the flow of the air cannot be changed, it is possible to more uniformly suppress uneven temperature in the room while suppressing excessive temperature rise on the floor, and to warm the feet from the user's feet to the shoulders evenly. There was a problem that it was difficult to do.

  The present invention has been made in view of the circumstances described above, and more preferably suppresses an excessive temperature rise on the floor surface and eliminates temperature unevenness in the room, so that there is no unevenness from the user's feet to the shoulders. It is an object of the present invention to provide a warm air heater that can be warmed.

  The present invention is a hot air heating apparatus that blows out hot air and heats it, and includes an appliance main body, a combustion section installed in the appliance main body, a convection fan that sends out hot air, and a hot air outlet that blows out hot air An opening, a control unit that controls the operation, a movable louver disposed in the hot air outlet, and a swinging device that swings the movable louver within a predetermined swinging angle range. The louver includes a first movable louver and a second movable louver disposed below the first movable louver, and the control unit is configured to move the first movable louver by the swing device. Adjusting the posture of the louver within a first swing angle range, and adjusting the posture of the second movable louver within a second swing angle range different from the first swing angle range. To do.

  According to this configuration, by providing the movable louver, the user's feet can be warmed more quickly than the fixed louver. By adjusting the postures of the first movable louver and the second movable louver within different swing angle ranges, it is possible to flexibly adapt to the purpose and environmental conditions. Thereby, the warm air heating device according to the present invention can be heated from the user's feet to the shoulders without unevenness while suppressing an excessive temperature rise on the floor surface and eliminating the temperature unevenness in the room.

  The hot-air heating device according to the present invention can warm the entire floor from the user's feet to the shoulders while suppressing an excessive temperature rise on the floor and eliminating the temperature unevenness in the room.

It is a perspective view which shows the external appearance of the warm air heating apparatus which concerns on embodiment of this invention. It is side surface sectional drawing which shows the warm air heating apparatus which concerns on embodiment of this invention. It is a perspective view which shows operation | movement of the rocking | fluctuation apparatus of the movable louver which concerns on embodiment of this invention, and is a state which closed the movable louver. It is a perspective view which shows operation | movement of the rocking | fluctuation apparatus of the movable louver which concerns on embodiment of this invention, and is a fixed attitude | position of a movable louver. It is a perspective view which shows operation | movement of the warm air heating apparatus which concerns on embodiment of this invention, and shows a mode that a 1st movable louver is rock | fluctuated and rotated in the state which fixed the 2nd movable louver. It is a perspective view which shows operation | movement of the warm air heating apparatus which concerns on embodiment of this invention, and shows the upper limit position of a movable louver. It is a perspective view which shows operation | movement of the warm air heating apparatus which concerns on embodiment of this invention, (a) is rocking | fluctuation operation | movement when combustion thermal power is strong, (b) is rocking | fluctuation when combustion thermal power is medium to weak. The operation is shown.

  Embodiments of the present invention will be described in detail with reference to the drawings as appropriate. As shown in FIG. 1 and FIG. 2, the hot air heating device 1 according to the present embodiment is a heating device that blows out hot air and raises the indoor temperature.

  As shown in FIG. 2, the hot air heating device 1 includes an appliance body 11, a combustion unit 2 that burns fuel oil, a convection fan 3 that sends out hot air, a hot air outlet 4, and a hot air outlet frame 5. And a movable louver 6, a rocking device 8 (see FIG. 5) that rocks the movable louver 6 within a predetermined rocking angle range, and a control unit 9 that controls the operation.

  In the warm air heating device 1, for the convenience of explanation, it is referred to as the left / right, front / rear, and up / down directions as viewed from the user.

  As shown in FIG. 1, the instrument body 11 includes a front panel 11a, an operation unit 12 on which various switches are disposed, and a liquid crystal panel 13 that displays operation contents and the like. The operation unit 12 is provided with an operation switch 12a, a louver operation switch 14, and other various switches.

  The louver operation switch 14 is a switch that gives a command to the control unit 9 to swing the movable louver 6 within a predetermined swing angle range.

The combustion unit 2 is a device that burns fuel oil.
The combustion unit 2 includes a vaporizer 21 that vaporizes fuel, a vaporization heater (not shown) that heats and vaporizes the fuel, an igniter (not shown) that sparks and ignites, and vaporized fuel such as petroleum. A burner 22 that combusts, a combustion cylinder 23 that forms a combustion space, a combustion fan 24 that blows combustion air to the burner 22, and a blower pipe 25 are provided.

  The convection fan 3 is attached to the back side hot air intake through a fan guard 31. A ventilation box 32 is disposed from the convection fan 3 to the hot air outlet 4. The blower box 32 guides the warm air blown by the convection fan 3 to the warm air outlet 4.

The warm air outlet 4 is an opening that blows warm air forward toward the room and is provided on the front panel 11a.
As shown in FIG. 4, the hot air outlet frame 5 is disposed so as to surround the hot air outlet 4. The warm air outlet frame 5 includes a pair of side plates 51, 52, a lower surface plate 53, and an upper surface plate 54.

  The pair of side plates 51, 52 includes a left side plate 51 disposed on the left side of the hot air outlet 4 and a right side plate 52 disposed on the right side. The lower surface plate 53 is closed so as to cover the lower side of the hot air outlet 4. The upper surface plate 54 is closed so as to cover the upper side of the hot air outlet 4.

  The movable louver 6 is disposed in the hot air outlet 4. The movable louver 6 includes a first movable louver 61 disposed on the upper stage and a second movable louver 62 disposed below the first movable louver 61.

  In the following description, the movable louver 6 (61, 62) is collectively referred to as the movable louver 6 when it is not necessary to distinguish between the first movable louver 61 and the second movable louver 62. .

The movable louver 6 is in a closed state shown in FIG. 3, a fixed posture for sending warm air in a predetermined stationary posture shown in FIG. 4, and a movable posture for swinging in a predetermined swing angle range shown in FIG. Have
The closed state shown in FIG. 3 is a state where the operation is stopped. The fixed posture shown in FIG. 4 is a state in which the movable louver 6 is operated while being fixed at a predetermined angle. The movable posture is a posture in which a swing motion (swing motion) is performed.

  For example, as shown on the left side of FIG. 7A, the angle of the movable louver 6 in the fixed posture is the first movable louver 61 when the combustion thermal power of the combustion section 2 (see FIG. 2) is “strong”. Is 71 degrees, and the second movable louver 62 is 83 degrees. As shown on the left side of FIG. 7B, when the combustion thermal power of the combustion section 2 (see FIG. 2) is “medium to weak”, the first movable louver 61 is similarly 71 degrees, and the second movable louver. 62 is 83 degrees.

  In the present embodiment, for the sake of convenience of explanation, the upper limit position, the lower limit position, the swing angle range, and the like of the movable louver 6 are illustrated for the purpose of illustrating an example. Can be determined as appropriate according to the use conditions such as the shape and size of the user and the position and posture of the user.

  FIG. 7 is a perspective view showing an example of a swing angle range in the swing operation of the hot air heating device 1, and FIG. 7A shows a case where the combustion thermal power is “strong”. As shown in FIG. 7A, the swing angle range is 85 to 64 degrees for the first movable louver 61 and 83 degrees for the second movable louver 62. 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. FIG. 7B shows the swing angle range when the combustion thermal power is “medium to weak”. As shown in FIG. 7B, 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.

  As shown in FIG. 6, the rocking device 8 includes a first shaft 81 that pivotally supports the first movable louver 61 on the pair of side plates 51 and 52, and a second movable louver 62 that is paired with the pair of side plates 51, 52. 52, a swing angle restricting mechanism 83 for restricting the swing angle range of the movable louver 6 (61, 62), a drive unit 84 for swinging the movable louver 6, and the movable louver 6 And a photo sensor 90 which is detection means for detecting that the camera has reached a predetermined reference posture.

  The first shaft 81 and the second shaft 82 are respectively disposed along the left-right direction. As a result, the first movable louver 61 swings and rotates in the vertical direction around the first shaft 81 disposed along the horizontal direction. The second movable louver 62 swings and rotates in the vertical direction around the second shaft 82 disposed along the horizontal direction.

  The swing angle restricting mechanism 83 includes a connecting link 85 whose lower end is connected to the drive unit 84, a first triangular arm 86 that connects the connecting link 85 and the first movable louver 61, a connecting link 85, and a second link. A second triangular arm 87 connecting the movable louver 62, a first cam groove 88 and a second cam groove 89 formed in the right side plate 52, a first cam follower 88a engaged with the first cam groove 88, And a second cam follower 89 a that engages with the second cam groove 89.

  The connecting link 85 is disposed so as to extend in the vertical direction along the right side plate 52 and is moved in the vertical direction by the drive unit 84. The connection link 85 includes a drive unit connection slot 85a formed at the lower end, a second triangular arm engagement hole 85b formed at the center, and a detected portion 85c for detecting the position by the photosensor 90. And.

  The connection link 85 is connected to the drive unit 84 through the drive unit connection long hole 85a, and is engaged with the second triangular arm 87 through the second triangular arm engagement hole 85b. An upper end portion of the connection link 85 is connected to the first triangular arm 86.

The first triangular arm 86 includes a louver support portion 86a, a first cam follower support portion 86b, and a connection link support portion 86c.
The louver support portion 86 a is a portion that supports the first movable louver 61 and the first triangular arm 86 with respect to the right side plate 52 by the first shaft 81 so as to be rotatable. The 1st cam follower support part 86b is a site | part which supports the 1st cam follower 88a, and is arrange | positioned back rather than the louver support part 86a. The connection link support portion 86c is a portion that is rotatably supported with respect to the connection link 85, and is positioned below the louver support portion 86a in the swinging posture of FIG.

  The first cam groove 88 is an elongated hole having an arc shape with the first shaft 81 as the center, and is formed in the right side plate 52. The second cam groove 89 has the same configuration as the first cam groove 88.

  The first cam follower 88a includes a shaft portion 88a1 and a guide roller 88a2 supported by the shaft portion 88a1. One end of the shaft portion 88 a 1 is connected to the first movable louver 61 and the other end is connected to the first cam follower support portion 86 b of the first triangular arm 86. As a result, when the first movable louver 61 rotates around the first shaft 81, the first cam follower 88 a moves on the arc while being guided along the first cam groove 88.

  With such a configuration, the first movable louver 61 can be swung and rotated by moving the first cam follower 88 a on the arc while being guided by the first cam groove 88. By moving the second cam follower 89a on the arc while being guided by the second cam groove 89, the second movable louver 62 can be swung and rotated.

  Further, when the first cam follower 88a contacts the upper end of the first cam groove 88, the fully closed position (see FIG. 3) of the first movable louver 61 can be regulated. When the first cam follower 88a contacts the lower end of the first cam groove 88, the fully open position (see FIG. 6) of the first movable louver 61 can be regulated.

  The second cam follower 89a abuts on the upper end of the second cam groove 89, thereby restricting the fully closed position (see FIG. 3) of the second movable louver 62. The second cam follower 89a abuts on the lower end of the second cam groove 89, thereby restricting the fully open position of the second movable louver 62 (see FIG. 6).

The second triangular arm 87 includes a louver support portion 87a, a second cam follower support portion 87b, and a connection link support portion 87c.
The louver support 87 a is the same as the louver support 86 a of the first triangular arm 86. The second cam follower support 87b is the same as the louver support 87b of the first triangular arm 86.

  The connection link support portion 87c includes a roller 87c1 disposed on the second triangular arm 87, and a spring member 86b that urges the roller 87c1 downward.

  The connection link support portion 87c is engaged with the connection link 85 via the second triangular arm engagement hole 85b. Specifically, the roller 87c1 is urged by the spring member 87c2 so as to move while engaging the inner peripheral portion of the second triangular arm engagement hole 85b.

  With this configuration, the position of the roller 87c1 moves along the shape of the inner peripheral portion of the second triangular arm engagement hole 85b. That is, when the second triangular arm engagement hole 85b moves with the movement of the connecting link 85, the position of the roller 87c1 moves, and the second triangular arm 87 rotates around the louver support portion 87a. As a result, the second movable louver 62 can be swung and rotated.

  The drive unit 84 includes a stepping motor 84a serving as a drive source, a drive lever 84b coupled to the stepping motor 84a, an engagement unit 84c disposed at the tip of the drive lever 84b, and the engagement unit 84c upward. And an urging spring member 84e. The drive unit 84 rotates the drive lever 84b at an arbitrary angle by the stepping motor 84a. The engaging portion 84c is fitted in the driving portion connecting elongated hole 85a. The spring member 84e urges the engaging portion 84c to the upper end portion of the drive portion connecting long hole 85a.

  With this configuration, the control unit 9 rotates the stepping motor 84a by the driving unit 84, thereby moving the connecting link 85 in the vertical direction. When the connecting link 85 is moved in the vertical direction, the first triangular arm 86 swings and rotates about the first axis 81, and the second triangular arm 87 swings and rotates about the second axis. As a result, the first movable louver 61 and the second movable louver 62 are swung and rotated.

  The connecting link 85 is located at the bottom dead center in the vertical direction at the upper limit position of the movable louver 6 (see FIG. 6). The connection link 85 moves upward from the lower limit position when the movable louver 6 swings downward from the upper limit position (see FIG. 5).

  At this time, the connecting link 85 moves from the front to the rear in the front-rear direction because the drive lever 84b moves from the downward direction to the horizontal direction at the lower end. Also, at the upper end, the connecting link 85 moves from the front to the back because the connecting link support 86c moves from the downward direction to the horizontal direction.

Here, the relationship between the second triangular arm engagement hole 85b formed in the connecting link 85 and the roller 87c1 disposed in the second triangular arm 87 will be described.
That is, the second triangular arm engagement hole 85b moves with the movement of the connecting link 85. Thereby, the position of the roller 87c1 can be moved through the second triangular arm engagement hole 85b.

  The warm air heating device 1 can rotate or stop the second triangular arm 87 by appropriately setting the shape of the second triangular arm engagement hole 85b and the movement trajectory of the connecting link 85. As a result, the second movable louver 62 can be swung and rotated in different swing angle ranges while the first movable louver 61 is swung and rotated continuously in a predetermined swing angle range (FIG. 7B). (See FIG. 5 and FIG. 7 (a)).

  The photo sensor 90 is an optical sensor for confirming an upper limit position (see FIG. 6) that is a reference posture of the movable louver 6. The upper limit position is the position of the top dead center in the swing angle range. As shown in FIG. 6, the photosensor 90 detects the upper limit position of the connection link 85 by detecting the detected portion 85 c formed on the connection link 85. Thereby, the control part 9 can determine the upper limit position of the movable louver 6 by the photo sensor 90.

  With this configuration, the control unit 9 determines that the predetermined swinging operation is properly executed for each cycle by determining that the movable louver 6 has reached the upper limit position in the swinging operation. .

The operation of the hot air heating apparatus 1 according to the embodiment of the present invention configured as described above will be described mainly with reference to FIG.
The controller 9 starts the heating operation when the operation switch 12a is operated by a user (not shown). At this time, the user uses the louver operation switch 14 to perform a predetermined fixed posture shown in FIG. 4 and a swing operation (swing operation) that is a movable posture that swings within a predetermined swing angle range shown in FIG. Can be selected.

  With such a configuration, the body of the body can be preferentially warmed by the fixed posture of the movable louver 6 according to the preference of the user of the warm air heating device 1, or can be warmed uniformly from the feet to the shoulders by the swinging motion. .

  When the fixed posture is selected by the user, the control unit 9 moves the movable louver 6 from the closed state (FIG. 3) to a predetermined fixed posture. Specifically, in the fixed operation when the combustion thermal power is “strong”, the movable louver 6 is moved to the fixed position shown in the left column of FIG. The first movable louver 61 is moved to 71 degrees, and the second movable louver 62 is moved to 83 degrees.

  When the movable posture is selected by the user, the control unit 9 starts the swinging operation of the movable louver 6, and each of the first movable louver 61 and the second movable louver 62 is moved to a predetermined swing angle. Swing within range.

  The swinging operation is different between the case where the combustion thermal power of the burner 22 is “strong” (see FIG. 7A) and the case where the combustion thermal power is “medium to weak” (see FIG. 7B).

As shown in FIG. 7A, in the swinging operation when the combustion thermal power is “strong”, the movable louver 6 starts from the fixed position shown in the left column and has the upper limit position shown in the middle column going upward. As described above, at the upper limit position, the photo sensor 90 detects that the upper limit position has been reached (see FIG. 4).
After that, the rocker swings to the lower limit position (right column) heading downward from the upper limit position, and then repeats one cycle to return to the start fixed position (left column).

  The fixed position of the movable louver 6 is the same as the position (angle) in the fixed posture. The upper limit position of the movable louver 6 is 85 degrees for the first movable louver 61 and 83 degrees for the second movable louver 62. The lower limit position of the movable louver 6 is fixed at 64 degrees for the first movable louver 61 and 83 degrees for the second movable louver 62. That is, with the second movable louver 62 fixed at 83 degrees, the first movable louver 61 is swung and rotated from the upper limit position to the lower limit position (see FIG. 5).

As shown in FIG. 7B, in the swinging operation when the combustion thermal power is “medium to weak”, the first movable louver 61 is 85 to 52 degrees, and the second movable louver 62 is 83 to 69 degrees. Swing. In this case, when moving from the upper limit position to the lower limit position, the second movable louver 62 moves from 83 to 69 degrees while the first movable louver 61 moves from 85 to 60 degrees. And if the 2nd movable louver 62 moves to 69 degree | times, it will become stationary and the 1st movable louver 61 will move to 60-52 degree | times.
Even when the combustion thermal power is “medium to weak”, since it is the same as the case where the combustion thermal power is “strong” (see FIG. 7A), a detailed description thereof is omitted.

In the warm air heating device 1, the swing angle range is set so that the first movable louver 61 is wider than the second movable louver 62.
As a result, in the upper range of the swing angle range, the first movable louver 61 and the second movable louver 62 are in a state close to horizontal, and wind that reaches more smoothly and far is sent.

On the other hand, in the lower range close to the downward direction in the swing angle range, the first movable louver 61 can be directed downward from the second movable louver 62 to send the agitated wind. By sending the agitated wind, it is possible to send a wind with less temperature unevenness to the user's feet.
In this way, the hot air heating device 1 can warm the user's feet from the shoulders to the shoulders evenly while suppressing an excessive temperature rise on the floor surface and eliminating the temperature unevenness in the room.

Moreover, in the warm air heating device 1, the movable louver 6 is set so that the swing angle range is narrower when the heating power of the combustion unit 2 is stronger than when it is weaker.
Thereby, in the hot air heating device 1, when the thermal power is strong, the downward wind in the swing angle range can be reduced, so that an excessive temperature rise on the floor surface can be effectively suppressed while Temperature unevenness can be eliminated, and the user's feet to shoulders can be warmed evenly.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to the structure described in the said embodiment, The combination thru | or selecting suitably the structure described in the said embodiment is included. The configuration can be changed as appropriate without departing from the spirit of the invention. In addition, a part of the configuration of the embodiment can be added, deleted, and replaced.

  For example, in the embodiment described above, the first movable louver 61 and the second movable louver 62 are swung and rotated by one stepping motor 84a as a drive source in order to simplify the control and ensure a stable operation. However, the present invention is not limited to this, and the first movable louver 61 and the second movable louver 62 may be controlled to be operated by separate stepping motors.

  The movable louver 6 is composed of the first movable louver 61 and the second movable louver 62, but is not limited to this, and a third movable louver or a plurality of movable louvers are added. May be.

DESCRIPTION OF SYMBOLS 1 Hot air heating apparatus 2 Combustion part 3 Convection fan 4 Outlet 5 Outlet frame 6 Movable louver 8 Oscillator 9 Control part 11 Instrument body 12 Operation part 12a Operation switch 13 Liquid crystal panel 14 Louver operation switch 61 1st movable louver 62 2nd movable louver 81 1st axis | shaft 82 2nd axis | shaft 83 Oscillation angle control mechanism 84 Drive part 85 Connection link 86 1st triangular arm 87 2nd triangular arm 90 Photosensor (detection means)

Claims (5)

A hot air heating device that blows out hot air and heats it.
An instrument body;
A combustion section installed in the instrument body;
A convection fan that sends out hot air,
A hot air outlet that blows out hot air;
A control unit for controlling the operation;
A movable louver disposed at the hot air outlet,
A swing device that swings the movable louver within a predetermined swing angle range;
The movable louver has a first movable louver and a second movable louver disposed below the first movable louver,
The control unit adjusts the posture of the first movable louver within a first swing angle range by the swing device, and the second movable louver is different from the first swing angle range. Adjusting the posture within a swing angle range of 2,
A hot air heater characterized by The movable louver has a predetermined fixed posture for sending warm air in a stationary posture, and a movable posture for swinging within a predetermined swing angle range,
A louver operation switch that gives a command to the control unit to swing the movable louver within a predetermined swing angle range;
The hot air heating apparatus according to claim 1, wherein Comprising detecting means for detecting that the movable louver has reached a predetermined reference posture;
The hot air heating apparatus according to claim 2, wherein The swing angle range is such that the first movable louver is wider than the second movable louver.
The warm air heating device according to any one of claims 1 to 3, wherein: The movable louver has a narrower swing angle range than the case where the fired power of the combustion part is weaker,
The warm air heating device according to any one of claims 1 to 4, wherein:

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