JPH0112972Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a filter mounting structure for an air conditioner, which has a simple structure and allows the filter to be easily mounted.

(Prior Art) For example, among the internal and external air intakes provided in the air duct of a vehicle air conditioner, a filter is generally attached to the internal air intake to remove dust and dirt from the intake air. Because the filter becomes dirty and deteriorates in function over time, it is necessary to replace the filter with a new one from time to time. Therefore, it is desirable that the mounting structure be as simple as possible and allow the filter to be easily attached and detached.

Conventionally, in response to such requests,
For example, there is a technique disclosed in Japanese Utility Model Application Publication No. 56-18207. That is, in this publication, one end of a filter mounting frame is rotatably attached to the air intake port of a blower duct, a filter is attached to the inside of the frame, and the filter mounting frame is connected to the air intake opening of the air duct. A filter mounting device for an air conditioner is shown, which is clamped and fixed between the edges.

(Problem to be solved by the invention) However, in such conventional devices, engagement pins and engagement holes for fixing the filter are provided on both the filter mounting frame and the opening edge of the air intake port. The structure is complicated, and the mold design and molding process for these molds, which are usually molded with synthetic resin, are complicated.
Moreover, there are problems in that it is practically difficult to apply it to air conditioners that do not have these mounting structures.

The present invention solves these conventional problems and allows the filter to be easily attached and detached due to its simple configuration.It also does not require special parts or special mounting structures, and can easily be installed in existing air conditioners. It is an object of the present invention to provide a filter mounting structure for an air conditioner that can be applied to.

(Means for Solving the Problems) Therefore, in the filter mounting structure of the air conditioner according to the present invention, a hook part is provided on a clip that can connect a duct case with a protruding pin, and this hook part is connected to the above-mentioned pin. The filter is fixed by engaging an end portion of a filter having an engageable engagement hole and engaging the engagement hole with the pin, so that the filter can be easily attached and detached. At the same time, the above-mentioned clip has both the function of connecting the duct case and the function of attaching the filter, thereby reducing the number of parts.Furthermore, the desired purpose can be achieved by making slight modifications to the existing clips, filters, etc. The feature is that it can be easily applied to existing air conditioners.

(Embodiment) Hereinafter, an illustrated embodiment in which the present invention is applied to the inside air intake of a vehicle air conditioner will be explained. In Figs. Consisting of case frames 1a and 1b molded in two along the axial direction, their end surfaces form an inclined surface as shown in the first figure, and a rectangular large and small rectangular shape forming the inside air intake port 2 is formed on this end surface. A plurality of air intake ports 3 are opened, and these air intake ports 3 are partitioned by bridge frames 4 arranged vertically and horizontally.

At the corresponding positions of the joints of case frames 1a and 1b,
Wide overhang pieces 5a, 5b, 6 as shown in FIG.
a, 6b are protrudingly molded, and these projecting pieces 5a, 5
The upper surfaces of b, 6a and 6b are formed at approximately the same level as the surfaces of the bridging frames 4 and 4, and clips 7 and 8 are provided to connect the case frames 1a and 1b to each pair of overhang pieces.
is installed. These clips 7,8
The clips 7 are both formed by bending steel plates, and the clip 7 is bent into a substantially U-shaped cross section as shown in FIG. At the same time, bend the leg piece 11 opposite to the leg piece 10 inward,
The end edge of this leg piece 11 is folded back to the outside to form a curled bead portion 12.

The other clip 8 has a clip plate 13 similar to the clip 7, legs 14, 15, and a bead 16, and the spans of the legs 14, 15 are the same as those of the legs 10, 11. A tongue piece 17 is protruded from the center of the edge of the clip plate 13, and the end of the tongue piece 17 is folded back to the outside to form a substantially U-shaped hook part 18. The end portion of the filter 19 is accommodated within the stop portion 18.

As shown in FIGS. 2 and 7, the filter 19 has a rectangular shape that is approximately the same as the shape of the inside air intake port 2, and a filter frame 2 made of synthetic resin defines the periphery of the rectangle.
Inside the frame 0, reinforcing frames 21 are arranged vertically and horizontally, and a fine lattice-like filter net 22 is stretched between them. The above filter frame 20,
Fixed pieces 23, 23 made of synthetic resin are integrally molded in a protruding manner at opposing outer positions of the fixing pieces 20, and an engagement hole 24 is opened at the edge of the fixed piece 23. Pins 25, 25 protruding from the outside of the duct case 1 are housed therein.

In addition, reference numeral 26 denotes an outside air intake port opened at a corresponding position of the duct case 1 facing the inside air intake port 2, and an inside/outside air switching door 27 is located inside the opening.
It is rotatably provided via 8. 29,3
0 is a blower and a blower motor arranged facing the inside air intake ports 2 and 26.

FIG. 9 shows another embodiment of the clip 8 used in the present invention, and the same reference numerals are used for parts corresponding to those of the embodiment described above. In this embodiment, instead of the hooking part 18 provided at the tip of the tongue piece 17, a step part 3 as a hooking part is provided at an intermediate position of the tongue piece 17.
1 and the end of the filter 19 is hooked to this stepped portion 31, thereby making it easier to attach and detach the filter 19 and to facilitate the processing of the clip 8.

(Function) In the filter mounting structure configured in this way, it is necessary to connect the duct case 1 using the clips 7 and 8 before installing the filter 19, and in that case, the cases constituting the duct case 1 When the joint end surfaces of the frames 1a and 1b are brought together, an overhang piece 5 is provided that protrudes from each case frame 1a and 1b.
a, 5b, 6a, 6b as a guide, align and arrange the overhang pieces 5a, 5b and 6a, 6b that form a pair with each other and butt each other, for example, the end surfaces on the inside air intake port 2 side are on the same plane. Adjust the relative positions so that the clips are formed, and attach the clips 7 and 8 to the overhanging pieces 5a, 5b, 6a, and 6b while maintaining this state.

When attaching these clips 7, 8, it is sufficient to hold each clip 7, 8 and push it onto the corresponding overhanging pieces 5a, 5b and 6a, 6b. For example, when attaching the clip 8, one leg piece 14 formed on the clip 8 is first hooked onto the side end surface of the overhang piece 6b, and while maintaining this state, the clip plate 13 is tilted toward the overhang piece 6b side. When the other leg piece 15 is pressed, the other leg piece 15 expands outward and engages with the side end surface of the other overhang piece 6a, and after the engagement, the leg piece 15 springs back and the overhang piece 6a
Since the side end surfaces of the case frames 1a and 1b are strongly pressed, the case frames 1a and 1b are firmly connected via the projecting pieces 6a and 6b.

In this case, the leg piece 15 of the clip 8 strongly presses the side end surface of the overhang piece 6a due to the above-mentioned spring back action, and the end edges of the leg pieces 14, 15 are pressed against the adjacent bridge frames 4, 4. Since the clip 8 is engaged with the inner end surface, the clip 8 will not fall off from the overhanging pieces 6a, 6b. Since the leg piece 11 of the other clip 7 also springs back and strongly presses the side end surface of the overhanging piece 5a, there is no fear of the clip falling off.

As shown in FIGS. 2 and 3, the clip 8 attached to the overhanging pieces 6a and 6b in this manner has a clip plate 13 and a tongue piece 17 that are thicker than the surfaces of the overhanging pieces 6a and 6b. The gap 32 formed between the above-mentioned surface and the filter 19 attached as described below remains very small, and the amount of internal air flowing in through the gap 32 can be suppressed to a very small amount. The effect can be applied with high accuracy. Further, since the hooking portion 18 of the clip 8 is located outside the opening area of the inside air intake port 2, it does not impair the area of the intake port 2 and does not become an obstacle to the circulation of inside air.

When attaching the filter 19 under such attachment conditions, hold the upper part of the filter 19, that is, the end closer to the fixing piece 23, and drop the other end into the hooking part 18 of the clip 8. Using this as a fulcrum, push the filter 19 down toward the opening of the inside air intake port 2, press the engagement hole 24 formed in the fixing piece 23 against the protruding pin 25 on the outside of the duct case 1, and push it in all at once to engage it. The pin 25 may be housed in the hole 24. In this way, the opening edge of the engagement hole 24 expands when the pin 25 is inserted, allowing the pin 25 to be accommodated, while the opening edge springs back and restores the original state of the opening after being accommodated. Since it engages with the pin 25, the pin 25 is prevented from coming off.

In this way, the actual installation operation of the filter 19 is as simple as holding one end of the filter 19, storing the other end in the hooking part 18, and then folding it toward the duct case 1 and pressing lightly. Even when removing the filter 19, it is sufficient to pull the upper end of the filter 19 in the direction away from the duct case 1, pull out the pin 25 from the engagement hole 24, and then pull out the lower end of the filter 19 from the hooking part 18. A series of attachment and detachment operations can be performed easily.

The filter 19 installed in this manner is installed in close contact with the opening of the inside air intake port 2 as described above, so that the filter effect can be improved, and the movement of the lower end is prevented by the hooking part 18, and the upper end is prevented from moving. Since the movement of the part is prevented by the fixing piece 23 and the pin 25, it will not come off due to vibrations or shocks caused by the vehicle.

Moreover, since the clip 8, which is the key to attaching and detaching the filter 19, has a part in common with the structure of the clip 7, a part of the processing process of the clip 7 can be used, making processing easier and It is possible to rationalize the mold design during press molding, and in addition to the function of connecting the duct case 1, the function of attaching the filter 19 is provided, which has the advantage of increasing its practicality.

(Effects of the invention) As described above, the filter mounting structure of the air conditioner of the present invention is such that a clip that can connect a duct case with a protruding pin is provided with a hook portion, and this hook portion is capable of engaging with the pin. Since the end of the filter having the engagement hole is engaged and the engagement hole is engaged with the pin to fix the filter, the filter can be easily attached and removed. be.

In addition, in this invention, the clip that connects the duct case has the function of fixing the filter, and this combined function makes it possible to reduce the number of parts required for installing the filter. It is sufficient to make slight modifications to this type of equipment, so the existing configuration can be used rationally and effectively to achieve the desired purpose without the need to install new dedicated parts or structures. There are practical effects that can be easily applied to the device.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an outline of an embodiment of the present invention, Fig. 2 is a front view showing an outline of the area around the inside air intake, and Fig. 3 is an enlarged sectional view taken along line A-A' in Fig. 2. , Figure 4 is a front view showing the state of the duct case around the inside air intake, with the filter and clip removed. Figures 5 and 6 are perspective views showing the clip used to connect the duct case. , FIG. 7 is a front view showing an example of the filter applied to the present invention, FIG. 8 is an enlarged front view showing the vicinity of the engaging hole of the filter, and FIG. 9 is a front view showing an example of the filter applied to the present invention. It is a perspective view showing a form. 1...Duct case, 8...Clip, 18...
...Latching part, 19...Filter, 24...Engagement hole,
25...Pin.

Claims (1)

[Scope of utility model registration request] A clip capable of connecting a duct case having a protruding pin is provided with a hooking portion, an end of a filter having an engagement hole capable of engaging with the pin is engaged with the hooking portion, and the engagement hole is connected to the clip. A filter mounting structure for an air conditioner, characterized in that the filter is fixed by engaging with the pin.