JP3723329B2 - Heating equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a hot air heater and a radiant heater in which a fan guard of a blower device is provided on a back portion of a main body exterior, and a back guard upper plate is provided on a rear portion of the main body exterior above the fan guard. It relates to heating equipment.
[0002]
[Prior art]
In this type of heating equipment, an air filter is detachably attached to the fan guard of the blower, and dust is prevented from flowing into the exterior of the main body through the vent of the fan guard, and the air filter can be easily cleaned. Although it is necessary to be able to do this, in a heating device with a back guard attached to the back of the exterior of the main unit, the fan guard is surrounded by the back guard, so a filter insertion opening is formed on the upper plate of the back guard, and the filter The air filter can be attached to the fan guard through the insertion port. Conventionally, a pair of guide rails are vertically attached to the left and right ends of the fan guard, and the air filters are attached and detached by engaging the left and right ends of the air filter inserted from the filter insertion port with these guide rails. It can be attached to the fan guard as much as possible.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional heating equipment mentioned above, since the guide rail is under the back guard upper plate, the air filter cannot be smoothly engaged with the guide rail, and there are many cases where it takes time to put in and out the air filter. In order to increase the strength, when the air filter is made of a wire mesh, there is a problem that a rattling noise is likely to occur due to the backlash of the air filter due to the driving of the blower.
[0004]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable the air filter to be attached in a stable state while allowing the air filter to be easily taken in and out.
[0005]
[Means for Solving the Problems]
In this invention of Claim 1, the fan guard provided in the back part of the main body exterior, the back guard upper board provided in the back part of the main body exterior above this fan guard, and this back guard upper board A filter insertion port formed in the air filter, and an air filter that is inserted into and removed from the filter insertion port so as to overlap the fan guard and covers the ventilation portion of the fan guard, and the upper part is fixedly held on the back guard upper plate, And the lower part is the structure provided with the filter pressing tool made from a metal wire material which elastically contacts the air filter and presses the air filter against the fan guard.
[0006]
In this invention of Claim 2, the fan guard provided in the back part of the main body exterior, the back guard upper board provided in the back part of the main body exterior above this fan guard, and this back guard upper board A filter insertion port formed in the air filter, and an air filter that is inserted into and removed from the filter insertion port so as to overlap the fan guard and covers the ventilation portion of the fan guard, and the upper part is fixedly held on the back guard upper plate, And a lower part of the air filter that is elastically abutted against the air filter and presses the air filter against the fan guard, and the upper part of the air filter is superposed on the back card upper plate. It is the structure by which the part is provided.
[0007]
In this invention of Claim 3, the fan guard provided in the back part of the main body exterior, the back guard upper board provided in the back part of the main body exterior above this fan guard, and this back guard upper board A filter insertion port formed in the air filter, and an air filter that is inserted into and removed from the filter insertion port so as to overlap the fan guard and covers the ventilation portion of the fan guard, and the upper part is fixedly held on the back guard upper plate, And a lower part of the back guard upper plate that is elastically abutted against the air filter and presses the air filter against the fan guard, and the back guard upper plate is fixed to the filter holder. The curl portion into which the shaft portion is inserted is integrally provided.
[0008]
In this invention of Claim 4, in the heating equipment of Claims 1 thru | or 3, the said filter pressing tool is made by bending one metal wire.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In FIG. 1, 1 is a main body exterior of a heating apparatus having an open surface 2 on the front surface and an air suction port 3 on the back surface 1A. Inside this main body exterior 1, a burner blower (not shown) is arranged inside. The burner support 4, the burner 5 for vaporizing and burning oil, the translucent combustion cylinder 6 containing a red hot body (not shown) and the heat exchange box 7 are connected in the vertical direction in that order from the bottom. And a vertical reflector 9 having an arcuate cross section located between the air suction port 3 and the open surface 2 around the combustion cylinder 6 excluding the open surface 2 side. The vertical reflecting plate 9 is provided with a plurality of through holes 10 and 10 facing the air suction port 3. A protective guard 11 is attached to the open surface 2 of the main body exterior 1 so as to be openable and detachable.
[0010]
Reference numeral 12 denotes a blower that takes indoor air into the main body exterior 1. The blower 12 includes a fan guard 13 attached to the back surface 1 </ b> A of the main body exterior 1, and a motor 14 attached to the motor attachment wall 13 </ b> A of the fan guard 13. The motor mounting wall 13 of the fan guard 13 is provided with a large number of ventilation holes 16, 16, and the numerous ventilation holes 16, 16 are provided through the ventilation holes 16, 16. The room air sucked into the fan guard 13 is sent into the main body exterior 1 from the air suction port 3.
[0011]
A back card 17 is provided on the back surface 1A of the exterior body 1 to secure a desired distance between the exterior body 1 and the chamber wall. The back guard 17 is located above the fan guard 13. The back card upper plate 18 is located on the left and right sides of the fan guard 13, and the back card upper plate 18 is inserted with a filter as shown in FIGS. A mouth 20 is provided, and a drooping piece 21 and a pair of curl portions 22 and 22 located on both sides of the drooping piece 21 are integrally formed at the mouth edge of the filter insertion opening 20.
[0012]
Reference numeral 23 denotes an air filter that is inserted into the back guard 17 from the filter insertion port 20, and this air filter 23 includes a wire mesh 24 and a steel plate frame portion 25 that is attached to the entire circumference of the wire mesh 24. The upper portion of the air filter 23 is formed by bending a overlapping portion 23A that overlaps the upper surface of the back card upper plate 18 at the periphery of the filter insertion opening 20 and a handle portion 23B that rises upward from the tip of the overlapping portion 23A. ing. When the air filter 23 is inserted into the back guard 17 from the filter insertion port 20, the air filter 23 overlaps the outer surface of the motor mounting wall 13A of the fan guard 13, and the air holes 16 and 16 of the motor mounting wall 13A are seen from the outside. It is something to cover.
[0013]
26, the upper part is fixedly held by the back card upper plate 18, and the lower part is pressed against the motor mounting wall 13A of the fan guard 13 by elastically contacting the wire mesh 24 of the air filter 23 and pressing the air filter 23 against the motor mounting wall 13A of the fan guard 13. It is.
[0014]
The presser 26 is provided at the lower end of the connecting shaft portion 26A, the left and right main shaft portions 26B and 26B, and the upper ends of the main shaft portions 26B and 26B, and a butting shaft that abuts against the lower surface of the back guard upper plate 18. Portions 26C, 26C, and fixed shaft portions 26D, 26D provided at the tips of the abutting shaft portions 26C, 26C, respectively, and inserted into the curled portions 22, 22 of the back guard upper plate 18 from the outside. It is made by bending a metal wire of a book.
[0015]
In addition, the bending angle θ of the main shaft portion 26B with respect to the abutting shaft portion 26C is set to be smaller than about 90 degrees (about 70 degrees in the embodiment), and the fixed shaft portions 26D and 26D are connected to the curled portions 22 and 22. When the presser 26 is attached to the back guard upper plate 18 by inserting the presser 26 into the back guard upper plate 18, the connecting shaft portion 26A comes into pressure contact with the outer surface of the motor mounting wall 13A due to its own springiness.
[0016]
In the above configuration, the air filter 23 can be pulled out by pulling it up with the handle 23B, and the air filter 23 can be cleaned. Further, after cleaning, if the air filter 23 is inserted into the filter insertion opening 20 and pushed down until the overlapping portion 23A comes into contact with the back guard upper plate 18, the air filter 23 can be attached at a predetermined position. At this time, the connecting shaft portion 26A of the presser 26 can elastically contact the wire mesh 24 of the air filter 23, and the air filter 23 can be pressed against the fan guard motor mounting wall 13A.
[0017]
According to the present embodiment, the fan guard 13 of the blower 12 provided on the back surface 1 </ b> A of the main body exterior 1 and the back guard upper plate 18 provided on the back surface 1 </ b> A of the main body exterior 1 above the fan guard 13. And a filter insertion port 20 formed in the back guard upper plate 18, and a filter insertion port 20 which is inserted into and retracted from the filter insertion port 20, and is superimposed on the outer surface of the motor mounting wall 13A of the fan guard 13 to be attached to the motor mounting wall 13A. The air filter 23 covering the provided vent holes 16 and 16 and the upper fixed shaft portions 26D and 26D are fixed and held on the back guard upper plate 18, and the lower connecting shaft portion 26A is attached to the wire mesh 24 of the air filter 23. And a filter retainer 26 made of a metal wire material that elastically contacts and presses the air filter 23 against the outer surface of the motor mounting wall 13A of the fan guard 13. Because of the configuration, the air filter 23 can be set at a predetermined position simply by inserting the air filter 23 into the filter insertion port 20 and pressing it down as it is, and not only the attachment / detachment operation of the air filter 23 is simplified, but also the set air filter 23 Is pressed against the fan guard 13 by the filter presser 26 so that the air filter 23 can be prevented from rattling and can be mounted in a stable state. Can be prevented. Further, since the filter presser 26 is made of a metal wire, it is possible to minimize the filter presser 26 from being an obstacle to air intake.
[0018]
In addition, since the upper portion of the air filter 23 is provided with the overlapping portion 23A that overlaps the upper surface of the back card upper plate 18, the lowering position of the air filter 23 can be regulated by the overlapping portion 23A. There is no need for a special part that regulates the downward movement position of the filter 23.
[0019]
Further, since the back guard upper plate 18 is integrally formed with a curl portion 22 for inserting a fixed shaft portion 26D provided on the filter presser 26, the filter presser 26 is provided with a special fixture. It can be attached to the back guard upper plate 18 without using it, and the number of parts and the number of assembly steps can be reduced.
[0020]
【The invention's effect】
In the heating apparatus according to claim 1, a fan guard provided on the back surface of the main body exterior, a back guard upper plate provided on the back surface of the main body exterior above the fan guard, and the back guard A filter insertion port formed in the plate, an air filter that is inserted through the filter insertion port so as to be freely inserted and removed, covers the fan guard and covers the ventilation portion of the fan guard, and an upper portion is fixedly held by the back guard upper plate. In addition, since the lower part elastically contacts the air filter and includes a metal wire filter presser that presses the air filter against the fan guard, the air filter is inserted into the filter insertion port and pushed down as it is. The air filter can be easily attached and detached in heating equipment with a back girth. In addition, since the backlash of the air filter can be surely prevented by the filter pressing tool, it is possible to prevent the generation of chatter noise. In addition, since the filter presser is made of a metal wire, it is possible to minimize the trouble of air intake by the filter presser.
[0021]
In the heating device according to claim 2, a fan guard provided on the back surface of the main body exterior, a back guard upper plate provided on the back surface of the main body exterior above the fan guard, and the back guard A filter insertion port formed in the plate, an air filter that is inserted through the filter insertion port so as to be freely inserted and removed, covers the fan guard and covers the ventilation portion of the fan guard, and an upper portion is fixedly held by the back guard upper plate. And a filter holder made of a metal wire material that elastically contacts the air filter and presses the air filter against the fan guard, and the upper part of the air filter is superposed on the back card upper plate. Since it is the structure by which the superposition | polymerization part is provided, in addition to the effect of Claim 1, the special component which regulates the downward movement position of an air filter is required. Meide already, the configuration can be simplified.
[0022]
In the heating device according to claim 3, a fan guard provided on the back surface of the main body exterior, a back guard upper plate provided on the back surface of the main body exterior above the fan guard, and the back guard A filter insertion port formed in the plate, an air filter that is inserted through the filter insertion port so as to be freely inserted and removed, covers the fan guard and covers the ventilation portion of the fan guard, and an upper portion is fixedly held by the back guard upper plate And a lower part of the back guard upper plate formed on the upper part of the filter guard, the lower part of which is elastically abutted against the air filter and presses the air filter against the fan guard. Since the curl portion into which the fixed shaft portion is inserted is integrally provided, in addition to the effect of claim 1, the filter presser is Without the use of fasteners makes it possible to attach to the back guard upper plate, the number of parts can be reduced and assembly steps.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view of a heating appliance showing an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of the main part of the same.
FIG. 3 is a perspective view of a single filter presser.
FIG. 4 is a plan view of an essential part of the back guard upper plate.
5 is a cross-sectional view taken along the line AA in FIG.
[Explanation of symbols]
1 Body exterior 1A Back of body exterior (rear part)
13 Fan guard 16 Vent (vent)
18 Back guard upper plate 20 Filter insertion port 22 Curl part 23 Air filter 23A Superposition part 26 Filter presser 26D Fixed shaft part

Claims (4)

A fan guard provided on the back surface of the main body exterior, a back guard upper plate provided on the back surface of the main body exterior above the fan guard, a filter insertion port formed on the back guard upper plate, and An air filter that can be inserted and removed freely from a filter insertion port, is overlaid on the fan guard and covers the ventilation part of the fan guard, an upper part is fixedly held on the back guard upper plate, and a lower part is elastic to the air filter And a filter holder made of metal wire that presses the air filter against the fan guard. A fan guard provided on the back surface of the main body exterior, a back guard upper plate provided on the back surface of the main body exterior above the fan guard, a filter insertion port formed on the back guard upper plate, and An air filter that can be inserted and removed freely from a filter insertion port, is overlaid on the fan guard and covers the ventilation part of the fan guard, an upper part is fixedly held on the back guard upper plate, and a lower part is elastic to the air filter And a filter holder made of a metal wire that presses the air filter against the fan guard, and an upper portion of the air filter is provided with a superposition portion that is superposed on the back card upper plate. Heating equipment. A fan guard provided on the back surface of the main body exterior, a back guard upper plate provided on the back surface of the main body exterior above the fan guard, a filter insertion port formed on the back guard upper plate, and An air filter that can be inserted and removed freely from a filter insertion port, is overlaid on the fan guard and covers the ventilation part of the fan guard, an upper part is fixedly held on the back guard upper plate, and a lower part is elastic to the air filter And a filter holder made of metal wire that presses the air filter against the fan guard, and a curl portion for inserting a fixed shaft portion formed on the filter holder is integrally formed on the back guard upper plate. Heating equipment characterized by being provided. The heating apparatus according to any one of claims 1 to 3, wherein the filter presser is made by bending a single metal wire.

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