JPS6333060Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is an air conditioner, more specifically, a casing housing a fan and a heat exchanger is provided with an inlet and an outlet, and the inlet and outlet are arranged opposite to each other. The present invention relates to an air conditioner in which a pair of support grooves having insertion portions opening outward of the casing are provided on both sides of the casing, and a filter having an elastically deformable support frame is removably supported in the support grooves.

(Prior Art) Conventionally, this type of air conditioner is described in, for example, Japanese Utility Model Application Publication No. 56-82417, and as shown in FIG. Several pairs of support grooves 32 (only one is shown) having insertion portions 32a communicating with the outside of the casing 30 are provided, and a filter 33 having an elastically deformable support frame 33a is provided between each pair of support grooves 32. ,
By inserting the filter 33 through the insertion port 30a of the casing 30, the filter 33 is supported in a removable manner, and only the lower end (on the insertion port 30a side) is elastically attached to the casing 30 without fixing the upper end of the filter 33 to the casing 30. It was designed to be fixed in place.

(Problems to be Solved by the Invention) However, in the conventional structure, the upper end of the filter 33 is not fixed to the casing 30, and the frame of the filter 33 is relatively rigid. Since the filter 3 is made of a small elastic material, vibrations during operation may cause the filter 3 to
There was a problem in that the upper end of the air conditioner 3 was shaken, and in particular, the central portion of the upper end hit a suction grill (not shown) provided at the suction port 31, causing a chattering sound.

An object of the present invention is to provide a simple structure that utilizes the elastic deformation of the filter, and to enable the upper end of the filter to be fixed to the casing, thereby eliminating chatter noise at the center of the insertion (upper end) side of the filter during operation. The point is to do so in a way that can prevent the occurrence of.

(Means for Solving the Problems) The present invention provides a casing 1 in which a fan 3 and a heat exchanger 2 are housed, and is provided with an inlet 4 and an outlet 5. A pair of support grooves 7 having insertion portions 71 communicating with the outside of the casing 1 are provided on opposite sides of the casing 1,
In an air conditioner in which a filter 10 having an elastically deformable support frame 11 is removably supported in the support groove 7, near the end of the support groove 7 in the insertion direction of the filter 10, and A projection 20 that interferes with the filter 10 and presses the filter 10 against the groove wall 7a of the support groove 7 is provided on the inner surface of the casing 1 between the holes 7 and 7, and a tapered projection 20 that guides the filter 10 to the projection 20 is provided. A guide surface 21 is formed thereon.

(Function) Therefore, the filter 10 is
When the filter 10 is inserted near the end in the insertion direction, the filter 10 is guided by the guide surface 21 of the protrusion 20 and rides on the protrusion 20, causing the filter 10 and the protrusion 20 to interference, the part of the support frame 11 facing the support groove 7 is pressed against the groove wall 7a, and the insertion side tip of the support frame 11 is elastically deformed. Due to this elastic force, the tip of the filter 10 on the insertion side is pressed against the protrusion 20.
and the pair of support grooves 7,
This prevents rattling and chattering noise.

(Example) An air conditioner according to the present invention will be described below based on an example shown in the drawings.

The air conditioner shown in FIG. 1 includes a heat exchanger 2 provided in a casing 1 in an inclined manner, and a cross flow fan 3 extending in the lateral direction of the casing 1 provided at a lower position of the heat exchanger 2. , a suction port 4 is formed on the front surface of the casing 1;
An air outlet 5 is formed on the lower side of the air outlet.

Then, indoor air is sucked into the casing 1 from the suction port 4 by the rotation of the cross-flow fan 3, and air-conditioned when passing through the heat exchanger 2,
This conditioned air is transferred to the lower outlet 5 of the casing 1.
It seems like it's blowing out into the room.

The casing 1 is made of resin and has a box shape with an open back, and is configured to cover the frame F to which the heat exchanger 2 and the fan 3 are fixed from the front side. Further, a suction grill 40 is integrally formed with the suction port 4 of the casing 1.

Further, on the inner surface of the casing 1, on both sides of the suction port 4 and in the middle thereof, four filter guide rails 6 having a T-shaped cross section as shown in FIG. 3 are integrally provided. Three pairs of support grooves 7 having insertion portions 71 are formed by these guide rails 6. Further, a filter insertion port 8 is formed near the air outlet 5 of the casing 1 at a position facing the insertion portion 71, and a filter is inserted into each pair of support grooves 7 through the insertion port 8. 10 is inserted in a detachable manner.

The filter 10 is made of an elastic material such as resin, and has two upper and lower air circulation openings 11a on a support frame 11 each having a rectangular shape as shown in FIG.
A mesh member is provided in the opening 11a. Further, as shown in FIG. 1, a knob 12 is formed at the lower end of the support frame 11 and protrudes toward the front side, and a hemispherical lock portion 13 is protruded from the upper part of the knob 12. On the other hand, the casing 1
The width of the insertion opening 8 portion is made slightly thinner than the thickness t of the lock portion 13 of the support frame 11, and the filter 10 is inserted into the support groove 7 from the insertion opening 8 through the insertion portion 71. When inserted into the
The lock piece 13 passes through the insertion opening 8 by elastically deforming the edge of the insertion opening 8, and as a result of this passage, the lock piece 13 is fitted and locked to the inner surface of the edge. Possibly the filter 10
can be supported by the casing 1 without falling off.

Therefore, in the air conditioner as described above, at the upper inner edge of the suction port 4 of the casing 1 as shown in FIG. 1, and between each pair of support grooves 7 as shown in FIG. The upper end of the support frame 11 of the filter 10 (hereinafter referred to as the upper horizontal frame 11c)
A pair of protrusions 20 are provided to interfere with the filter 10 and press the filter 10 inward to the casing 1, and the upper horizontal frame 11c of the filter 10 is attached to the protrusions 20.
a tapered guide surface 21 that guides the
was formed.

Specifically, as shown in FIGS. 2 and 3, on the upper frame 41 of the suction grill 40 provided in the suction port 4, two grooves are provided between each pair of support grooves 7, 7 on the inside of the casing 1. The protrusion 20 is formed to face the support groove 7 and protrude to a height substantially equal to the groove width of the support groove 7.

Further, the lower surface of the projection 20 is formed in a tapered shape from the tip of the projection 20 toward the inner end of the upper frame 41, and this tapered surface is used as the guide surface 21.

Further, the protrusion 20 is formed integrally with the casing 1.

When setting the height of the protrusion 20 and the installation position between the pair of support grooves 7, the groove width of the support groove 7 and the support frame 1 of the filter 10 are determined.
1, the support frame 11 is pressed against the inner wall 7a of the support groove 7 by the protrusion 20, and the upper horizontal frame 11c is pushed toward the inner side of the casing 1 as shown in FIG. The upper horizontal frame 11c may be deformed into a curved shape toward the upper horizontal frame 11c so that the upper horizontal frame 11c is reliably held by the pair of support grooves 7 and the projections 20.

In the embodiment, two protrusions 20 are provided between each of the support grooves 7, 7.
The number of these protrusions 20 is not particularly limited, and for example, only one protrusion 20 may be provided in the center between the support grooves 7, 7.

The present invention is constructed as described above, and when the filter 10 is inserted into the support groove 7 in the casing 1, the filter 10 is inserted through the insertion opening 8 of the casing 1, and the insertion portion 71 of the guide rail 6 is inserted into the support groove 7 in the casing 1. As a result, the lock piece 13 provided on the support frame 11 of the filter 10 is fitted and locked to the front edge of the insertion opening 8, and the filter 10 is inserted into the support groove 7 through the casing 1. It can be installed without falling off.

Therefore, when the filter 10 is inserted, the upper horizontal frame 11c of the filter 10 is inserted into the suction grille 4 at the end (upper end) of the support groove 7 in the insertion direction.
The support frame 11 rides on the protrusion 20 via the guide surface 21 of the protrusion 20 provided on the upper frame 41 of the support frame 11.
Both ends of the support groove 7 are pressed against the groove walls 7a of the support groove 7, and the upper horizontal frame 11c of the support frame 11 is pushed approximately toward the inside of the casing 1 between the support grooves 7, 7, as shown in FIG. As a result, the upper horizontal frame 11c of the support frame 11 is elastically and
It can be held immovably.

Therefore, the upper horizontal frame 11c of the filter 10 does not wobble within the support groove 7 during operation, and above all, the filter 10
The upper horizontal frame 11c hits the upper frame 41 of the suction grill 40, and no chattering noise is generated.

In addition, when removing the filter 10 from inside the casing 1 and cleaning the filter 10, the filter 10 is forcibly pulled out from the insertion opening 8 of the casing 1, and the lock piece 13 and the edge of the insertion opening 8 are removed. By disengaging the filter 10 from the casing 1, the filter 10 can be removed from the casing 1.

Furthermore, since a pair of the protrusions 20 are molded on the casing 1, no separate parts are required, and furthermore, no special work such as screwing is required when attaching and detaching the filter 10. Therefore, the workability is also good.

(Effects of the Invention) As described above, the present invention provides the filter 10 near the end in the insertion direction of the filter 10 in the pair of support grooves 7 that support the filter 10 and on the inner surface of the casing 1 between the support grooves 7, 7. A protrusion 20 is provided which interferes with the filter 10 and presses the filter 10 against the groove wall 7a of the support groove 7.
In addition, since a tapered guide surface 21 for guiding the filter 10 is formed, the work of attaching and detaching the filter 10 is easy as in the conventional case, and the structure is as simple as just providing the protrusion 20. When the filter 10 is inserted into the support groove 7, the insertion side tip of the filter 10 can be fixed by the protrusion 20 and the support groove 7, and as a result, chatter is prevented at the insertion side tip of the filter 10. This can prevent the generation of noise.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing an embodiment of an air conditioner according to the present invention, Fig. 2 is an enlarged longitudinal side view of the same essential parts, Fig. 3 is a sectional view taken along the line shown in Fig. 2, 4
The drawings are a sectional view taken along the line of FIG. 1, and FIG. 5 is a vertical sectional side view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Casing, 2... Heat exchanger, 3... Fan, 4... Suction port, 5... Outlet, 7... Support groove, 7a... Wall surface, 10... Filter, 11...
...Support frame, 20...Protrusion, 21...Guide surface.

Claims (1)

[Scope of utility model registration request] A casing 1 in which a fan 3 and a heat exchanger 2 are housed is provided with an inlet 4 and an outlet 5; A pair of support grooves 7 having an insertion portion 71 communicating with the support grooves 7 are provided.
In an air conditioner in which a filter 10 having an elastically deformable support frame 11 is detachably supported, the filter 10 is attached near the end of the support groove 7 in the insertion direction of the filter 10 and between the support grooves 7 and 7. A projection 20 that interferes with the filter 10 and presses the filter 10 against the groove wall 7a of the support groove 7 is provided on the inner surface of the casing 1, and a tapered guide surface 21 that guides the filter 10 is provided on the projection 20. An air conditioner characterized by the following: