JP3695946B2 - Filter device for hot air heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a filter device for a hot air heater used to remove dust or the like of indoor air sucked into a convection fan of the hot air heater.
[0002]
[Prior art]
Conventionally, a hot air heater has a hot air path through which indoor air from the back to the front passes in the main body, and the combustion gas generated from the heat source provided in the main body flows directly into the hot air path, Combustion gas is guided to the heat exchanger attached to the path, the temperature of the indoor air passing through the warm air path is increased by the convection fan, and the warm air is blown from the outlet on the front surface of the main body.
[0003]
A filter is attached to the suction side of the convection fan attached to the indoor air intake on the back of the main unit so that dust does not enter the hot air path and adhere to the wall or corners. The air sucked into the fan is made free of dust. On the other hand, a large amount of dust or dust adheres to the filter, and the filter is removed and removed with a vacuum cleaner or the like and cleaned by washing with water.
[0004]
[Problems to be solved by the invention]
In the above-mentioned conventional technology, cleaning of the filter of the convection fan of the hot air heater is quite troublesome, and when the filter attached to the suction side of the convection fan of the hot air heater is detachable, It is desirable that hot air heaters cannot be operated when they are removed, but they can be accidentally put into operation, causing fingers or things to touch the convection fan or mischief during childhood. is there.
[0005]
For this reason, many hot air heaters, especially oil fan heaters, prevent this danger by fixing the filter to the indoor air intake so that it cannot be removed. When cleaning the filter, it is difficult to clean it completely.If the mesh is fine, the filter will be clogged, the air volume will be insufficient, the temperature inside the body will rise abnormally, and the safety device will operate easily. If the surface is roughened, dust may accumulate in the hot air path, and the dust may be burnt by the heat of the heat source section, so it is desirable to remove and clean the filter.
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a safe warm air heater that is easy to remove and clean a filter.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the filter device for a hot air heater of the present invention is provided with a hot air outlet in the main body of the heater, an indoor air inlet in the main body, and convection in the vicinity of the indoor air inlet. A hot air heater with a blower attached, indoor air blown into the main body to blow hot air from the hot air outlet, and a convection fan guard disposed in the convection blower, wherein the convection fan guard has a convection blower A resin-made slide guide is fixed to the vicinity of the center of the slide guide, and a convex portion is provided on the insertion / removal surface of the filter of the slide guide, and a plurality of notches are provided on both sides thereof .
[0008]
As a result, two dowels are provided on the inner surface of the resin slide guide, that is, on the passage surface side when the filter is attached and removed, and the dowels are cut on both sides of the dowel so that the filter spreads outward when passing the dowel of the slide guide. and, to smooth loading and unloading of the filter.
[0009]
The tip of the resin slide guide has an expanded shape, and the tip is provided with elasticity by cutting the dowel.
[0010]
In addition, two dowels are provided on the inner surface of the resin slide guide, that is, the passage surface side when the filter is attached / detached, and the dowels are cut into both sides and fixed to the guard with screws. It is.
[0013]
Also, a resin knob is provided in the vicinity of the upper corner of the filter so that it can be taken in and out with a finger when the filter is put in and out.
[0014]
And a retaining means is provided at the knob mounting portion in the upper corner of the filter to prevent the knob from coming off.
[0015]
In addition, slip prevention means is provided on the surface of the knob provided at the upper corner of the filter so as to prevent slippage perpendicular to the pulling direction.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a filter device for a hot air heater according to the present invention will be described below with reference to the drawings.
[0017]
1 is a front perspective view of a warm air heater, FIG. 2 is a top view of the warm air heater, FIG. 3 is a rear perspective view of the warm air heater, and FIG. 4 is a schematic side sectional view of the warm air heater. Is a perspective view of a slide guide of a filter device of a hot air heater, FIG. 6 is a cross-sectional view of the slide guide of the filter device of the hot air heater, taken along line AA in FIG. 5, and FIG. 7 is a filter device of the hot air heater 5 is a cross-sectional view of the slide guide taken along line B-B in FIG. 5, FIG. 8 is a schematic view of mounting the slide guide on the convection fan guard of the filter device of the hot air heater, and FIG. 9 is a front view of the filter of the hot air heater. FIG. 10 is a cross-sectional view of the filter frame and knob of the hot air heater, and FIG. 11 is a plan view of the vicinity of the filter knob of the hot air heater.
[0018]
In the drawings, 1 is a main body of a warm air heater, 9 is a heat source part housed and installed in the main body 1, 10 is a combustion chamber located above the heat source part 9, and the heat source part 9 of the embodiment is made of kerosene. It consists of a vaporizing burner used as fuel.
[0019]
2 is a hot air outlet formed on the front surface of the main body 1, 3 is an indoor air inlet formed on the rear surface of the main body 1, and 11 is an air flow that communicates the indoor air inlet 3 and the hot air outlet 2 within the main body. A path 4 is a convection fan attached in the vicinity of the indoor air intake 3 on the inlet side of the air flow path 11.
[0020]
Reference numeral 5 denotes a convection motor that drives the convection fan 4. When the convection motor 5 rotates, the convection fan 4 rotates to suck indoor air into the air flow path 11 and pass through the air flow path 11. Is blown into the room from the hot air outlet 2 on the front surface of the main body 1. Reference numeral 6 denotes a louver attached to the hot air outlet 2, and the louver 6 functions to rectify the air blown out from the hot air outlet 2 and to blow it out in a predetermined direction.
[0021]
The combustion chamber 10 is located in the air flow path 11. In an open hot air heater called an oil fan heater, the combustion gas is discharged from the combustion chamber 10 to the air flow path 11. It mixes with the passing room air and becomes warm air, which is blown out from the hot air blowing port 2.
[0022]
A convection fan guard 7 that is attached to the indoor air intake 3 and covers the convection fan 4, a filter 8 provided outside the convection fan guard 7 made of sheet metal with punched holes, and a frame around the outer periphery of the filter 8 are supported. Are a slide guide L12 attached to the convection fan guard 7, a slide guide R13, and a knob 20 attached in the vicinity of the upper corner of the frame 14 of the filter 8. When the filter 8 is pulled upward with this knob 20, the filter 8 is guided by the slide guide L12 and the slide guide R13 and can be taken upward.
[0023]
The filter 8 prevents dust and dust from entering the air flow path 11 in the main body 1, and prevents the occurrence of troubles caused by dirt or dust adhering to the air flow path 11. Yes. Before attaching the convection fan guard to the main body 1, the slide guard L12 and the slide guide R13 are fixed to the convection fan guard 7 at the designated locations with screws. At that time, the slide guide L12 and the slide guide R13 are formed. The inserted Z-shaped portion 24 is inserted into the cutout hole 25 of the convection fan guard 7 and is pressed and fixed in the direction of the arrow to facilitate positioning and mounting assembly.
[0024]
The slide guard L12 and the slide guide R13 are made of resin, and the tip portion into which the filter 8 is inserted has a shape that slightly extends outward from the convection fan guard 7, and prevents the filter 8 from chattering in the middle. a dowel 15 for the cut opening 16 on both sides of the dowel 15 is formed to near screw hole 17, the fulcrum screw hole 17, the movement extending outwardly when the filter 8 is inserted, smooth out the filter 8 It is designed to prevent chattering caused by movement and vibration. A stopper 18 that receives the filter 8 is formed on the bottom surface of the slide guide L12 and the slide guide R13, and serves to receive this portion when the filter 8 is inserted.
[0025]
The filter 8 is composed of a frame 14, a wire mesh 19, and a knob 20. The frame 14 is a thin stainless steel plate, is U-shaped and box-shaped, and the wire mesh 20 for catching dust is fine in mesh and made of frame material. 14 is made of the same stainless steel plate as the opening area that has a passage resistance larger than the passage resistance of the convection fan guard 7, is fitted into the U-shaped part of the frame 14, is spot-welded in a forcible part, and is pinched at the upper corner part. Fit 20 in. The knob 20 is prevented from slipping off when the pawl 21 of the frame 14 is inserted, and the surface is provided with a plurality of ribs 22 perpendicular to the take-out direction to prevent sliding.
[0026]
In the above configuration, when the filter 8 is put in and out, the indoor air is sucked into the hot flow source 9 of the air flow path 11 to be discharged into the room from the hot air outlet 2 and circulated in the room. When passing through the filter 8, the convection fan 4 deposits and deposits indoor dust and dust on the wire mesh 19 of the filter 8 to remove indoor dust and dust and clean the room air. The filter 8 on which dirt and dust are deposited is taken out from the filter mounting device 23 once every two weeks and removed with a vacuum cleaner. When the dirt is severe, the material is made of stainless steel and washed with water. be able to.
[0027]
The filter 8 from which dust and dust have been removed is attached from the widened portion of the tip of the slide guide L12 and slide guide R13 of the filter mounting device 23 with the knob 20 of the filter 8.
[0028]
【The invention's effect】
The filter of the hot air heater of the present invention is provided with a hot air outlet on the front surface of the main body of the heater, an indoor air inlet is provided on the back surface of the main body, and a convection blower is attached in the vicinity of the indoor air inlet. Both sides of the convection fan guard in a hot air heater in which room air is blown into the main body and hot air is blown from the hot air outlet on the front side, and a convection guard with a punching hole is provided on the back of the convection fan A plastic slide guide is provided to allow the filter to be inserted and removed, and the slide guide is provided in the vicinity of the center of the convection fan so that the temperature rises and is durable due to post-boiling during the operation of the safety device. In consideration of the test, it is possible to eliminate the thermal deformation of the resin, to obtain a shape and size that does not cause a problem in usability, and to prevent scratches when the filter is put in and out.
[0029]
In addition, two dowels are provided on the inner surface of the slide guide, that is, the passage surface side when the filter is attached and removed, and the filter moves outward when passing through the dowel of the slide guide. The filter can be attached and detached smoothly, and when the filter is attached, the filter is held down by a dowel, and chattering due to vibration is prevented.
[0030]
Scratches when attaching and detaching the filter do not occur because the slide guide and dowel are made of resin. Further, the tip of the resin slide guide expands outward, so that the dowel portion is notched so that it has excellent flexibility and the filter can be easily attached.
[0031]
In addition, two dowels are provided on the inner surface of the resin slide guide, that is, on the passage surface side when the filter is attached and detached, and the notches on both sides of the dowel are fixed to the guard with screws. Can serve as a fulcrum and improve the flexibility of spreading.
[0034]
In addition, when the filter is in and out, a knob that is gripped with your fingers and put in and out is not provided because the center of the upper part of the filter is hot, and a knob made of resin is provided near the upper corner of the filter. It can be a safe and easy-to-use knob at temperature.
[0035]
Then, a cut-and-raised portion is provided in the knob mounting portion in the upper corner of the filter, and the filter can be shaped so that it cannot be pulled out even if it is pulled.
[0036]
In addition, ribs perpendicular to the filter insertion / removal direction can be provided on the surface of the knob provided at the upper corner of the filter, so that it can be shaped without slipping.
[Brief description of the drawings]
FIG. 1 is a front perspective view of a hot air heater showing an embodiment of the present invention.
FIG. 2 is a top view of a hot air heater showing an embodiment of the present invention.
FIG. 3 is a rear perspective view of the hot air heater showing the embodiment of the present invention.
FIG. 4 is a side cross-sectional view of a hot air heater showing an embodiment of the present invention.
FIG. 5 is a perspective view of a slide guide of a filter device of a hot air heater showing an embodiment of the present invention.
6 is a cross-sectional view taken along line AA in FIG.
7 is a cross-sectional view taken along line BB in FIG.
FIG. 8 is a schematic view illustrating attachment of a slide guide to a convection fan guard of a filter device of a hot air heater showing an embodiment of the present invention.
FIG. 9 is a plan view of a filter of a hot air heater showing an embodiment of the present invention.
FIG. 10 is a cross-sectional view for explaining how the filter frame and the knob are attached in the hot air heater showing the embodiment of the present invention.
FIG. 11 is a front view of the vicinity of a filter knob of a hot air heater showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Hot air outlet 3 Indoor air intake 4 Convection fan 5 Convection motor 6 Louver 7 Convection fan guard 8 Filter 9 Heat source part 10 Combustion chamber 11 Air flow path 12 Slide guide L
13 Slide guide R
14 Frame 15 Dowel 16 Notch 17 Screw hole 18 Stopper 19 Wire mesh 20 Knob 21 Claw 22 Rib 23 Filter mounting device

Claims (5)

A hot air outlet is provided in the main body of the heater, an indoor air inlet is provided in the main body, a convection fan is installed near the indoor air inlet, indoor air is blown into the main body, and hot air is blown from the hot air outlet. In the hot air heater with the convection fan guard disposed on the convection fan,
A resin-made slide guide is fixed to the convection fan guard below the vicinity of the center of the convection fan, and a convex portion is provided on the filter insertion / removal surface of the slide guide, and a plurality of notches are provided on both sides thereof. This is a filter device for hot air heaters. 2. The filter device for a hot air heater according to claim 1, wherein in the slide guide, an insertion portion of the filter extends outward to bend. The filter device for a hot air heater according to claim 1 or 2 , wherein the slide guide has screw fixing as a bending fulcrum. In the filter, provided the knob in the vicinity of the upper corner Rutotomoni, warm-air heating apparatus according to any one of claims 1 to 3, characterized in that a retaining means of the knob around an upper corner Filter device. 5. The filter device for a hot air heater according to claim 4 , wherein in the filter, means for preventing slippage is provided on the surface of the knob in a direction perpendicular to the drawing direction.

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