JPH0515924Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to an air filter guide structure for an air conditioner, and in particular, it is provided on the back side of the front panel of the air conditioner, and is installed inside the air conditioner. An air conditioner that guides an air filter for filtering the indoor air sucked into the air conditioner along the back surface, and improves the filter guide member to support the air filter so that it can be easily and reliably attached to the front panel. The present invention relates to an air filter guide structure.

(Prior Art) Generally, an air filter for filtering indoor air drawn into the air conditioner is attached to the back side of the front panel of an air conditioner. This air filter includes a filter guide member provided along its periphery so as to sandwich it, and an engaging protrusion for supporting the filter guide member by holding it at a predetermined distance on the back surface of the front panel. The air filter guide structure is configured to be guided and supported by the back surface of the front panel by an air filter guide structure.

Conventionally, this type of air filter guide structure has a fourth
A configuration as shown in FIG. 5 and FIG. 5 was adopted.

First, in the conventional example shown in FIG. 4, an engaging protrusion b raised to a predetermined height is integrally formed on the back surface of the front panel a. On the other hand, the filter guide member c, which is provided along the side edge of the air filter so as to sandwich the air filter, has the above-mentioned engaging protrusion b.
Attachment holes d are provided at predetermined intervals for insertion. Therefore, a plurality of engaging protrusions b are provided on the back surface of the front panel a, corresponding to the mounting holes d of the filter guide member c.

In the conventional example shown in FIG. 4, in particular, in order to form a gap between the filter guide member c and the front panel a for inserting, guiding and supporting the air filter, the engaging protrusion b is The base on the front panel side forms an enlarged stepped portion e. Furthermore, a claw portion f extending in the radial direction is provided at the tip of the engaging protrusion b extracted from the mounting hole d.
Therefore, the filter guide member c was supposed to be inserted into the front panel a by fitting the mounting hole d into the engagement protrusion b and engaging the claw part f. .

Further, in the conventional example shown in FIG. 5, the engaging protrusion of the conventional example shown in FIG. 4 has been improved to particularly simplify it.

As shown in the figure, engaging protrusions b are integrally formed on the back surface of the front panel a, and stand up in the shape of a column at a predetermined interval along a filter guide member c attached to the front panel a. This engaging protrusion b is made of the same synthetic resin material as the front panel a. On the other hand, the filter guide member c is provided with a mounting hole d through which the engaging protrusion b is inserted. This mounting hole d is simply the filter guide member c.
This is a through hole through which the columnar engagement protrusion b can be inserted, and the inner diameter is the same from the inlet side to the outlet side.

Therefore, in this conventional example, the front panel a
While the air filter is inserted between the filter guide member c and the front panel a by fitting the mounting holes d into the respective engagement protrusions b provided on the back side of the
At the same time, the tip of the engagement protrusion b pulled out from the mounting hole d is melted to form the engagement protrusion b.
and the filter guide member c are integrally fixed.

(Problems to be solved by the invention) However, the conventional example shown in FIG. 4 has the following problems.

(a) At the tip of the engaging protrusion b integrally formed on the front panel a, a claw part f is provided to be held and engaged with the mounting hole d. The design of the mold for molding the protrusion b may sometimes be difficult, and the mold tends to be expensive.

(b) Furthermore, since the filter guide member c must be attached by holding the engaging protrusion b in the attachment hole d, the work is troublesome.

(c) Since the filter guide member c is simply held and engaged with the engaging protrusion b, that is, the engaging protrusion b and the filter guide member c are not fixed, so that the front There was a problem in that it was difficult to control the dimensions of the space between the panel a and the filter guide member c for guiding and supporting the air filter.

Next, in the conventional example shown in FIG. 5, since the filter guide member c is fixedly attached to the front panel a, it has the advantage that the gap for guiding and supporting the air filter is maintained constant. It had the following drawbacks.

(a) First, since the mounting hole d is formed in a straight line with the same diameter from the inlet side to the outlet side, the part of the engaging protrusion b extracted from the mounting hole d is melted to form a filter. It will stick to the guide member c, and the melt strength will not be stable. Therefore, there was a problem that the filter guide member c tends to tilt after installation.

(b) Furthermore, since the tip of the engagement protrusion b extracted from the attachment hole d is melted and welded, the surface of the melted portion becomes rough and uneven.

Therefore, the present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an air filter guide structure for an air conditioner that allows a filter guide member to be reliably and easily attached to a front panel.

[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the present invention provides a raised protrusion on the back side of the front panel and guides and supports the side edge of the air filter. In the air filter guide structure for attaching a filter guide member to be inserted into and supported by the engaging protrusion, the air filter guide member is formed on the filter guide member;
The mounting hole through which the engagement protrusion is inserted is formed into a crater shape whose diameter is gradually enlarged in the direction in which the engagement protrusion is extracted, and the engagement protrusion to be extracted is inserted into the mounting hole with an enlarged diameter. It is constructed by welding.

(Function) With the above configuration, the mounting hole formed in the filter guide member is formed into a crater shape whose diameter gradually increases in the direction in which the engaging protrusion is pulled out, and within this crater-shaped mounting hole, the engaging projection is pulled out. The mating protrusion member is melted and welded, increasing the welding strength, and the engaging protrusion that is pulled out is melted and fixed in the shape of a truncated cone within the crater-shaped hole. It is possible to prevent the filter guide member from separating from the mating protrusion. Furthermore, since all the protrusions to be melted are accommodated within the crater-shaped attachment holes, the melted surface is finished neatly.

(Example) Next, an example of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a pillar-shaped engagement protrusion 2 is integrally formed on the back surface of a front panel 1 of the air conditioner. This engaging protrusion 2
is made of a synthetic resin material that is the same material as the front panel 1.

On the other hand, the filter guide member 3 is formed with a mounting hole 4 through which the engagement protrusion 2 is inserted and extracted. Particularly in the present invention, the mounting hole 4 is formed in a crater shape whose diameter gradually increases in the direction in which the engaging protrusion 2 is pulled out, as shown in FIG. A plurality of mounting holes 4 are provided in the filter guide member 3 at predetermined intervals in correspondence with the engagement protrusions 2, and each of the mounting holes 4 is sequentially enlarged in diameter in a crater shape.

Next, when attaching the filter guide member 3 to the front panel 1, fit the attachment holes 4 into the engagement protrusions 2 provided on the front panel 1, respectively.
While maintaining a sufficient gap between the filter guide member 3 and the front panel 1 to guide and support the air filter 5, insert the distal end of the extracted engagement protrusion 2 into the crater-shaped mounting hole 4. The parts are melted and welded at the step 1 and assembled as shown in FIG.

In particular, as shown in FIG. 1, the distal end of the extracted engagement protrusion 2 is melted in the crater-shaped attachment hole 4 and fixed to the filter guide member 3, and is shaped like a truncated cone. The engaging protrusion 2
will be fixed. Therefore, the engaging protrusion 2
The welding strength between the filter guide member 4 and the filter guide member 4 is increased.
The filter guide member 3 does not come off from the front panel 1.

Furthermore, the engaging protrusion 2 that is melted is housed in the crater-shaped attachment hole 4, resulting in an excellent appearance.

Furthermore, the filter guide member 3 and the front panel 1 can be integrally attached by simply melting the engagement protrusion 2 pulled out from the attachment hole 4 in the attachment hole 4, which simplifies the process. It becomes easier.

As shown in FIG. 3, the filter guide member 3 is attached along the center and both sides of the front panel 1 in order to guide and support the air filter 5 along the back side of the front panel 1. Therefore,
Both side edges of the filter guide members 3 are engaged or held between the filter guide members 3, and the air filters 5 are respectively attached.

[Effects of the invention] In summary, the present invention provides the following excellent effects.

(1) A simple mold may be used to form the engaging projection member on the front panel for engaging or supporting the filter guide member.

(2) The attachment strength of the filter guide member to the front panel can be increased, and separation thereof can be prevented.

(3) When welding the filter guide member to the engagement protrusion, the finished surface can be made clean and the workability is easy.

[Brief explanation of the drawing]

Fig. 1 is an enlarged sectional perspective view of the main part showing one embodiment of the present invention, Fig. 2 is an enlarged side sectional view showing the relationship between the filter guide member and the engaging protrusion, and Fig. 3 is an enlarged sectional view showing the relationship between the filter guide member and the engaging protrusion. A plan view showing the back side of the front panel,
FIG. 4 is a side sectional view showing a conventional example, and FIG. 5 is a side sectional view showing another conventional example. In the figure, 1 is a front panel, 2 is an engaging protrusion, 3 is a filter guide member, and 4 is a crater-shaped attachment hole.

Claims (1)

[Scope of utility model registration request] An air filter guide structure in which a raised engagement protrusion is provided on the back surface of the front panel, and a filter guide member is inserted and supported by the engagement protrusion to guide and support the side edge of the air filter. A mounting hole formed in the filter guide member and through which the engaging protrusion is inserted is formed in a crater shape whose diameter gradually increases in the direction in which the engaging protrusion is pulled out. An air filter guide structure for an air conditioner characterized by welding within an enlarged diameter mounting hole.