JP7554076B2 - Filter unit mounting frame - Google Patents

Description

The present invention relates to an air conditioner that draws in outside air and supplies it to a room, and relates to a filter unit mounting frame that is incorporated into the air conditioner and that is used to mount and store a filter unit.

Air conditioners are widely used to adjust the temperature inside buildings and other structures and to purify the air taken in from outside, making them an essential part of improving living environments. Such air conditioners are widely available with both temperature control and air blowing functions, and a filter unit with a dust filtering function is attached to a filter unit mounting frame (sometimes called a casing) built into the device. Dust filtered out by the operation of the air conditioner accumulates in the filter unit, and it is common to replace only the filter unit when it no longer meets the desired performance.

As such a device configuration, a filter unit mounting frame of the prior art is disclosed in Japanese Utility Model Application Publication No. 59-131219 (hereinafter referred to as Patent Document 1). The filter unit mounting frame of Patent Document 1 is a filter unit mounting frame in which an air passage is defined by a top plate, a bottom plate, and a pair of side plates. In order to mount and fix the filter unit 2 to the filter unit mounting frame 1, a roughly "U"-shaped holder 4 is provided on the inner surface of each side plate 1b by a bracket 3 so as to be rotatable in the upstream and downstream directions of the air passage and in a direction perpendicular thereto. In addition to this holder 4, a support 5 is attached to the inner surface of the bottom plate 1c of the filter unit mounting frame 1 so as to be rotatable using a bracket 3 in the same way as the holder 4, in order to place the filter unit 2 on it. On the other hand, a pressing frame 6 larger than the filtration surface of the main body part that three-dimensionally stores the pleated filter material is attached to the surface corresponding to the upstream side of the air passage of the filter unit 2, and insertion holes 7 are opened in a total of four places on two opposing sides of the pressing frame 6. To attach the filter unit, as shown by the dashed lines in Figure 1, both ends of the holder 4 are threaded, and the holder is inserted into four insertion holes 7 provided in the filter unit 2 and fixed with nuts (not shown). At this time, the bottom surface of the filter unit 2 body is placed on the support 5, and the filter unit 2 is attached and fixed by the support 5 and holder 4 of the filter unit mounting frame 1.

However, the filter unit mounting frame of Patent Document 1 requires a nut to secure the filter unit to the filter unit mounting frame, making it time-consuming to install and remove the filter unit.

Utility Model Publication No. 59-131219

The present invention was made under these circumstances, and aims to provide a filter unit mounting frame that allows easy attachment and detachment of a filter unit to and from the filter unit mounting frame.

The invention according to claim 1 of the present invention is a filter unit mounting frame, "which defines an air passage with a top plate, a bottom plate, and a pair of side plates, has a filter unit contact surface along the air passage that contacts the filter unit when the filter unit is mounted, and the pair of side plates each have a filter unit fixing member and a rotating handle member, the handle member and the side plates are connected by a handle shaft, and the filter unit fixing member and the handle member are connected by a filter unit fixing member/handle member connecting shaft, and the filter unit fixing member moves in conjunction with the rotation of the handle member."

The filter unit mounting frame of the present invention can fix the filter unit by a filter unit fixing member on the side plate of the filter unit mounting frame and a rotating handle member. As a result, the filter unit can be attached to the filter unit mounting frame without using a nut, and the filter unit can be easily attached and detached when attaching and removing the filter unit to the filter unit mounting frame. In addition, when attaching a filter unit to a filter unit mounting frame using a nut of the conventional technology, it is difficult to visually determine the tightness of the nut, so it is not clear whether the filter unit mounting frame has fixed the filter unit, and the filter unit may not be sufficiently fixed to the filter unit mounting frame by tightening the nut too much or not enough. On the other hand, with the filter unit mounting frame of the present invention, it is clear by visual inspection whether the handle member has fixed the filter unit, so it is easy to check whether the filter unit is fixed based on the state of the handle member, and unlike the conventional technology in which the filter unit is fixed with a nut, the filter unit can always be fixed with the optimal force regardless of who is working.

FIG. 1 is a perspective view, partially see-through, showing a conventional filter unit mounting frame and filter unit for explaining the background art. FIG. 2 is a perspective view similar to FIG. 1 for explaining a preferred embodiment of the present invention. 4 is an enlarged plan view of a filter unit fixing member and a handle member in the filter unit mounting frame of the present invention. FIG. 1 is a perspective view of a filter unit attached to a filter unit mounting frame of the present invention; FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following description, specific conditions such as specific shapes, positional relationships, and numerical conditions are exemplified to the extent that the present invention can be easily understood. Figure 2 is an explanatory diagram similar to Figure 1. In this figure, components having the same functions as components already described are given the same reference numerals, and detailed descriptions may be omitted.

The preferred embodiment of Fig. 2 has the same configuration as the filter unit mounting frame shown in Fig. 1, and instead of the bracket 3, holder 4, support 5, and insertion hole 7 shown in Fig. 1, a filter unit fixing member 8 and a handle member 9 are disposed on the side plate 1b of the filter unit mounting frame 1. When mounting and fixing the filter unit 2 to the filter unit mounting frame 1, the pressing frame 6 of the filter unit 2 and the filter unit fixing member 8 are connected, and the handle member 9 is rotated, so that the filter unit fixing member 8 moves toward the filter unit contact surface 1d in conjunction with the rotation of the handle member 9, pressing the filter unit 2 against the filter unit contact surface 1d, and the handle member 9 is fixed to the pressing frame 6 of the filter unit 2, thereby mounting and fixing the filter unit 2 to the filter unit mounting frame 1.

At this time, methods for joining the pressing frame 6 of the filter unit 2 and the filter unit fixing member 8 include, for example, a method of hooking the cutout portion 12 of the filter unit fixing member 8 into a slit (not shown) provided in the pressing frame 6 as shown in FIG. 2, or a method of inserting the protrusions provided on both sides of the filter unit 2 into holes provided in a pair of filter unit fixing members 8 and clamping them from both sides.

Methods of fixing the handle member 9 to the pressing frame 6 of the filter unit 2 include, for example, providing the pressing frame 6 with a handle hook portion 10 for hooking and fixing the handle member 9, and similarly providing the handle member 9 with a filter unit hook portion 11 for hooking and fixing the handle member 9 to the pressing frame 6, and connecting the handle hook portion 10 and the filter unit hook portion 11, or providing the pressing frame 6 with a holder for hooking the handle member 9. When the handle hook 10 is provided on the pressing frame 6 and the filter unit hook 11 is provided on the handle member 9, the shapes of the handle hook 10 and the filter unit hook 11 may be, for example, a shape in which the filter unit hook 11 of the handle member 9 has a protrusion and the handle hook 10 is a hole that hooks the protrusion of the filter unit hook 11, or a shape in which the filter unit hook 11 of the handle member 9 is a hole, the handle hook 10 of the pressing frame 6 has a protrusion and the protrusion of the handle hook 10 is hooked into the hole of the filter unit hook 11, but the shapes of the handle hook 10 and the filter unit hook 11 are not particularly limited as long as the handle member 9 can be fixed to the pressing frame 6. Note that the shapes of the handle hook 10 and the filter unit hook 11 in Figures 2 to 4 are such that the filter unit hook 11 has a protrusion and the handle hook 10 is a hole that hooks the protrusion of the filter unit hook 11.

Next, the operation of the preferred embodiment will be described in detail with reference to Figs. 3 and 4. Fig. 3 is an explanatory diagram of the filter unit fixing member 8 and the handle member 9 arranged on the side plate 1b of the filter unit mounting frame 1 of the present invention. The filter unit fixing member 8 and the handle member 9 have a handle shaft 13 for rotating the handle member 9 and for connecting the handle member 9 to the side plate 1b of the filter unit mounting frame 1, and a filter unit fixing member/handle member connecting shaft 14 for connecting the filter unit fixing member 8 and the handle member 9, in order to allow the filter unit fixing member 8 to move toward the filter unit contact surface 1d when the handle member 9 is rotated. The specific shapes of the filter unit fixing member 8 and the handle member 9 are not particularly limited as long as they can fix the filter unit 2, but as an example, the filter unit fixing member 8 and the handle member 9 are shown with a rectangular planar shape.

Figure 4 is an explanatory diagram of the filter unit 2 being attached to the filter unit mounting frame 1 of the present invention shown in Figure 2. When attaching and fixing the filter unit 2 to the filter unit mounting frame 1, as described above, the filter unit 2 and the filter unit fixing member 8 are connected by the filter unit fixing member 8 arranged on the side plate 1b of the filter unit mounting frame 1, and by rotating the handle member 9 also arranged on the side plate 1b of the filter unit mounting frame 1, the filter unit fixing member 8 moves toward the filter unit contact surface 1d, pressing the filter unit 2 against the filter unit contact surface 1d, and the handle member 9 is fixed to the pressing frame 6 of the filter unit 2, thereby attaching and fixing the filter unit 2 to the filter unit mounting frame 1.

The preferred embodiment of the present invention has been described above with reference to the drawings. The present invention is not limited to the specific exemplary conditions described above, and any suitable design changes or modifications can be made within the scope of the object of the present invention.

1: Filter unit mounting frame,
1a: top plate, 1b: side plate, 1c: bottom plate, 1d: filter unit contact surface, 2: filter unit,
3: bracket,
4: holder,
5: Support,
6: Pressing frame,
7: insertion hole,
8: Filter unit fixing member,
9: Handle member,
10: Handle hook part,
11: filter unit hook portion,
12: cutout portion,
13: Handle shaft,
14: Filter unit fixing member/handle member connecting shaft,

Claims (1)

A filter unit mounting frame in which an air passage is defined by a top plate, a bottom plate, and a pair of side plates, and which has a filter unit contact surface along the air passage that contacts the filter unit when the filter unit is mounted, and the pair of side plates each have a filter unit fixing member and a rotating handle member, the handle member and the side plates are connected by a handle shaft, and the filter unit fixing member and the handle member are connected by a filter unit fixing member/handle member connecting shaft, and the filter unit fixing member moves in conjunction with the rotation of the handle member.

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