JP3921188B2 - Hot air heater - Google Patents

Description

  The present invention relates to a hot air heater that blows out hot air generated inside from an outlet through an air passage.

  In a hot air heater, air sucked by a blower is heated by a heat source using electricity, gas, or kerosene to generate hot air. This warm air is blown into the room from the outlet through the air passage.

  A blower outlet is formed in the lower part of the front board of an apparatus main body, and the horizontal louver of the multistage in the horizontal direction is attached to the blower outlet. The horizontal louver regulates the blowing direction of the warm air, and the warm air is blown out along the floor surface. Furthermore, the horizontal louver prevents foreign matter from entering from the air outlet.

However, since there is a gap between adjacent lateral louvers, it is inevitable that foreign matter will enter. If the invading foreign matter is combustible, it may be heated by a heat source and ignite. On the other hand, in Patent Document 1, a rib is provided on the longitudinal louver, and when a foreign object enters between the louvers, it is detected that the louver has been deformed via the rib, and the operation is stopped. Moreover, in patent document 2, the lid | cover is provided in the blower outlet, and when not using it, it covers.
JP-A-3-54393 Japanese Utility Model Publication No.4-1363

  Conventionally, measures have been taken to stop the operation when a foreign object enters or prevent a foreign object from entering. However, in the unlikely event that a foreign object has entered the air passage, taking it out is not considered.

  Therefore, in view of the above, an object of the present invention is to provide a warm air heater that can easily take out foreign matter that has entered the air passage.

  According to the present invention, a hot air generating means is provided in the device body in which the air outlet is formed, a hot air blowing path leading to the air outlet is formed, and foreign matter that has entered the air blowing path is formed in the air outlet. A discharge member for guiding is provided.

  The discharge member facilitates the movement of the foreign material so that the foreign material is not caught in the air passage and guides it to the air outlet. By providing the discharge member, when a foreign object accidentally enters the air passage from the air outlet, the foreign object is guided to the air outlet. And a foreign material is discharged | emitted as it is out of an apparatus main body from a blower outlet as it is, or a foreign material is taken out from a blower outlet by hand and discharged | emitted.

  The air passage is provided in the apparatus main body so as to pass from the upper side of the hot air generating means to the air outlet, and the discharge member is disposed in the vicinity of the air outlet of the air passage. Since the air passage is formed downward toward the air outlet, the foreign matter that has entered falls. Therefore, if the discharge member is disposed in the vicinity of the outlet, the foreign matter in the air passage falls and reaches the discharge member. Accordingly, foreign matter can be guided to the outlet.

  In addition, a plurality of louvers are provided at the outlet. By disposing the discharge member close to the lowermost louver, the discharge member does not hinder the passage of hot air.

  As the warm air generating means, a heating chamber for generating warm air in the apparatus main body is provided. A blower path is formed in a space between the heating chamber and the front plate on which the blower outlet is formed, and a discharge member is disposed between the heating chamber and the louver of the blower outlet in the lower part of the blower path. If it is the above structures, the foreign material which penetrate | invaded in the ventilation path will fall between a heating chamber and a front board, and will remain. If there is a discharge member here, the foreign matter is guided toward the outlet and can be discharged.

  For this reason, the discharge member has an inclined surface that descends toward the air outlet. The foreign object slides down along the inclined surface. Accordingly, foreign matter can be automatically discharged. Furthermore, the front end of the inclined surface of the discharge member is located above the rear end of the lowest louver. When a foreign object slides down the inclined surface, it moves smoothly without being caught by the louver.

  The space dimension between the lowermost louver and the upper louver is made larger than the space dimension between other adjacent louvers. When the foreign matter that has entered through between adjacent louvers is guided to the outlet by the discharge member, the foreign matter passes through and is discharged without being caught between the lowermost louver and the upper louver.

  It is also possible to form the discharge member integrally with the lowermost louver. Further, a discharge means for forcibly discharging the foreign matter dropped on the discharge member is provided. Thereby, foreign matter can be reliably discharged.

  According to the present invention, even if a foreign matter enters the air passage, the foreign member can be guided to the outlet by the discharge member and discharged to the outside. Therefore, if it is a foreign material which can penetrate | invade from the blower outlet provided with the louver, it can be reliably discharged | emitted from a blower outlet, a foreign material does not remain in a ventilation path, and safety improves.

  The hot air heater of this embodiment is shown in FIGS. A combustion device 2 using kerosene and gas as fuel is provided inside the apparatus main body 1, and a combustion chamber (heating chamber) 3 is provided thereabove. A suction port 4 is formed on the back surface of the device body 1, and a blower 5 is provided in the vicinity of the suction port 4. An air outlet 7 is formed in the front plate 6 of the device body 1, and a plurality of louvers 8 are provided in the air outlet 7. The louver 8 has a horizontally long shape extending in the horizontal direction, and a louver frame is fixed to the periphery of the air outlet 7, and both ends of the louver 8 are attached to the louver frame. The louver 8 may be either a fixed type or a variable type whose angle can be changed.

  The combustion device 2 is constituted by a burner, a vaporizer, a fuel supply device, and the like, and the combustion device 2, the combustion chamber 3, and the blower 5 constitute hot air generating means. That is, fuel burns in the combustion device 2 and heats the air in the combustion chamber 3. Indoor air is sucked from the suction port 4 by the blower 5 and blown toward the combustion chamber 3. This air and heated air are mixed to generate hot air. Hot air is blown into the room from the air outlet 7.

  An air passage 10 that guides the hot air generated as described above to the air outlet 7 is formed in the device main body 1 so as to surround the combustion chamber 3. The front surface 3a of the combustion chamber 3 is inclined so that the lower part protrudes forward. A flange 11 is formed on the front side of the combustion chamber 3, and the flange 11 extends horizontally toward the front side. The front end of the flange 11 is overlapped with the lower plate 12 that forms the lower edge of the air outlet 7 and closes the gap between the device main body 1 and the combustion chamber 3. And the combustion chamber 3 is located in the center of the apparatus main body 1, and there exists space in the back, upper direction, and the front. The air passage 10 is formed using these spaces. The air outlet 7 is located in front of the combustion chamber 3, and the air passage 10 passes from the upper side of the combustion chamber 3 to the front, descends obliquely, changes its direction horizontally, and reaches the air outlet 7. In the vicinity of the blowout port 7 between the combustion chamber 3 and the louver 8, the lower part of the air passage 10 is a flat part.

  Here, the louvers 8 adjacent in the vertical direction are arranged at a constant interval. Therefore, there is a possibility that foreign matter may enter the air passage 10 from the gaps between the louvers 8. In order to discharge the foreign matter that has entered in this way, a discharge member 15 is provided in the air blowing path 10. The foreign object is not normally inserted and is an article that is intentionally inserted by a child or a young person by mischief or the like, and examples thereof include an eraser, a pencil, and a coin.

  The discharge member 15 is located at the lower part of the air passage 10 and is disposed between the combustion chamber 3 and the louver 8 and is screwed to the lower plate 12 on both the left and right sides. As shown in FIGS. 1 and 3, the discharge member 15 is formed by bending a rectangular metal plate, and has an inclined surface 16 facing the air outlet 7 and a vertical surface 17 continuous thereto. It should be noted that side surfaces are formed on the left and right sides to form a closed shape.

  The rectangular inclined surface 16 covers the space from the combustion chamber 3 to the lowermost louver 8. The upper end of the inclined surface 16 is in contact with the front surface of the combustion chamber 3. The front end of the inclined surface 16 is close to the rear end of the lowermost louver 8. The front end of the inclined surface 16 and the rear end of the louver 8 may be in contact with each other, or there may be a slight gap, for example, a gap of about 1 mm, so that no foreign matter enters. Further, in the vertical direction, the front end of the inclined surface 16 is set to a height substantially the same as the rear end of the louver 8 or the front end is slightly higher than the rear end. The vertical surface 17 has a length close to the lower plate 12. In addition, a viewing window 18 having a long hole shape is formed on the inclined surface 16, and the burner combustion state can be visually recognized through the front surface 3 a of the combustion chamber 3. The angle of the inclined surface 16 is 50 degrees, but is not limited to this, and the angle is set according to the distance between the front surface 3a of the combustion chamber 3 and the louver 8.

  In this way, the flat portion of the air passage 10 is covered with the discharge member 15. When the discharge member 15 provided in the air passage 10 is viewed from the front, it is as shown in FIG. 2, the discharge member 15 faces the lower part of the air outlet 7, and only the inclined surface 16 is visible from the gap of the louver 8. When foreign matter enters the air passage 10 from the gap of the louver 8, the air passage 10 is formed obliquely downward in the vicinity of the air outlet 7, so that the foreign matter does not go deep into the air passage 10 and falls as it is. Or, it hits the front surface 3a of the combustion chamber 3 and slides down. The fallen foreign matter hits the discharge member 15 and slides down the inclined surface 16. Therefore, no foreign matter falls on the flat part of the air passage 10.

  The foreign matter is guided to the air outlet 7 along the inclined surface 16 and comes between the lowermost louver 8 and the upper louver 8. If the foreign matter is smaller than the size of the gap between the two louvers 8, the foreign matter jumps out from between the louvers 8 and is automatically discharged. If the foreign matter is larger than the dimension of the gap between the two louvers 8, the foreign matter hits the louver 8 and stops. In this case, the louver 8 may be pushed and spread to remove the foreign matter.

  Therefore, the space dimension of the gap between the lowermost louver 8 and the upper louver 8 is made larger than the space dimension of the gap between other adjacent louvers 8. In this way, when the foreign matter that has passed through the upper louver 8 and entered the air passage 10 is guided to the outlet 7 by the discharge member 15, the lowermost louver 8 and the upper louver 8. Will always pass through. Therefore, the foreign matter that has entered can be reliably discharged.

  Further, when the foreign matter slides down the inclined surface 16 of the discharge member 15 and reaches the front end, the foreign matter is not caught on the louver 8 because it is a continuous surface from the inclined surface 16 to the louver 8. Therefore, the foreign matter can be smoothly discharged from the outlet 7. In order to allow the foreign matter to be discharged more reliably, the front end of the inclined surface 16 is preferably positioned above the rear end of the louver 8.

  By the way, although the discharge member 15 was provided in the ventilation path 10 as another member, as shown in FIG. 4, it forms so that the rear end of the lowest louver 8 may extend toward the combustion chamber 3, and the discharge member 15 It may be 15. If the discharge member 15 is integrated with the louver 8 in this way, the discharge member 15 can be installed by attaching the louver 8, and the work of attaching the discharge member 15 becomes unnecessary. However, the lowermost louver 8 is fixed.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. The warm air heater may use a heater as a heat source. Although the discharge member is provided as a separate member, it may be formed using a part of the device main body. For example, the lower part of the front surface of the combustion chamber is protruded toward the outlet, or the lower plate is inclined, so that the flat portion is eliminated to form an inclined surface.

  Moreover, in the said embodiment, although the foreign material is discharged so that it may slide down with dead weight, you may provide the discharge means which discharges | emits the foreign material which fell on the discharge member forcibly. That is, the discharging means vibrates the discharging member, and the upper surface of the discharging member is horizontally or slightly inclined, and the discharging member is vibrated by a motor, an ultrasonic vibrator or the like, and the foreign matter placed on the upper surface is applied to the louver. Send it out. Alternatively, it is possible to switch between an inclined posture when the discharge member discharges foreign matter and a standby posture when receiving the foreign matter. The rear end side of the discharge member is rotatably supported, and in the standby posture, the upper surface of the discharge member is biased upward by a spring so as to be in a horizontal state. When a foreign object falls, the upper surface is inclined by the load and becomes an inclined posture, and the foreign object is slid down onto the louver. When the foreign matter is discharged, the discharge member is lifted so that the upper surface becomes horizontal by the biasing force of the spring. In this way, if the upper surface of the discharge member is horizontal, it can be hidden from the louver and cannot be seen from the outside.

Schematic sectional view of the hot air heater of the present invention Front side of hot air heater Front view of discharge member The figure which shows the discharge member of another form

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 3 Combustion chamber 7 Outlet 8 Louver 10 Blower path 15 Discharge member 16 Inclined surface

Claims (3)

A hot air outlet is formed in the front plate of the apparatus body, a plurality of louvers are provided in the outlet, and a heating chamber for generating hot air is provided in the apparatus body, the heating chamber An air passage that leads to the air outlet is formed in a space between the front plate and the front plate. A discharge member for discharging is provided , and the discharge member has an inclined surface that descends toward the air outlet so that foreign matter slides down, and the front end of the inclined surface is more than the rear end of the lowest louver. Is also located above the hot air heater. Discharge member, warm air heater of claim 1, wherein the integrally formed at the bottom of the louver. The hot air heater according to claim 1 or 2, wherein a space dimension between the lowermost louver and an upper louver is larger than a space dimension between other adjacent louvers.