JP3222382B2 - Air conditioner filter fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter fixing device for an air conditioner, and more particularly to an air conditioner used for fixing a filter for collecting dust and odor in a room to a filter frame provided inside the device. A filter fixing device.

[0002]

2. Description of the Related Art A conventional filter fixing device 1 for an air conditioner of this type shown in FIG. 16 includes a rod 2 projecting from a filter frame arranged inside the device and having a male thread at a tip end. Two types of filters 3a and 3b are provided in the filter frame.
And a pressing member 4 for defining the thickness of the filters 3a and 3b is disposed on the bar 2. A wing nut 5 is screwed from the tip of the bar 2, and the pressing member 4 is pressed against the filter 3 b by adjusting the position of the pressing member 4 with the wing nut 5, and the filters 3 a and 3 b are fixed to the filter frame. I do.

[0003]

The rod member 2 is provided at a plurality of places on the filter frame, and a plurality of wing nuts 5 are prepared so as to correspond to the rod member 2. At each position, the wing nut 5 is provided. It is necessary to adjust the position of the pressing member 4. Therefore, there is a problem that it takes much time to attach and detach the filters 3a and 3b, and the workability is poor. Also,
There is a case where dust adheres to the thread portion of the rod 2 and the wing nut 5, and the dust bites into the screw thread, or the filters 3a and 3b cannot be attached or detached due to rust.

[0004] Therefore, a main object of the present invention is to provide a filter fixing device for an air conditioner, which can be easily attached and detached and can be securely fixed.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a filter frame provided in an air conditioner, a filter housed in the filter frame, a bar member projecting from the filter frame and having a male thread at a tip end, and a bar member. In a filter fixing device provided with a pressing member attached to the filter for fixing the filter to the filter frame by pressing the filter, and a fixing member for fixing the pressing member to the rod, the fixing member is formed of a band-shaped elastic plate, and the guide hole and the guide hole Are formed in the band-shaped elastic plate, and the bar is inserted into the fixing hole and the guide hole with the two fixing holes aligned with each other by elastically deforming the band-shaped elastic plate. What is claimed is: 1. A filter fixing device for an air conditioner, comprising: inserting a fixing hole into a male screw portion of a bar by restoring elastic deformation of a band-shaped elastic plate and fixing a pressing member to the bar. .

[0006]

The band-like elastic plate of the fixture is elastically deformed to lock the fixing hole in the male screw portion of the bar, and the filter is fixed to the filter frame by pressing the pressing member against the filter. Therefore, less work is required compared to the case where the position of the pressing member is adjusted using the wing nut as in the related art.

Further, by inserting a rod into the guide hole of the belt-like elastic plate of the fixing device, the fixing device is also supported by the guide hole. Therefore, there is no danger that the fixture will come off naturally due to the vibration transmitted through the filter frame.

[0008]

According to the present invention, the filter can be fixed to or removed from the filter frame with a small amount of work, so that the filter can be easily attached and detached. Further, since the fixture is supported by the bar at the guide hole, the filter can be securely fixed to the filter frame. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An air conditioner filter fixing device 10 of this embodiment shown in FIGS. 1 to 3 has a filter 14 for trapping dust and odor in the indoor space in a filter frame 12 provided in the air conditioner. It is for fixing. Filter frame 12
Is a frame of a predetermined length having a rectangular (square in this embodiment) cross section, and extends inward on one surface to form a tip slightly similar to the cross-sectional shape of the filter frame 12. A locking piece 12a is provided. On the other hand, on the other surface of the filter frame 12, a plurality of (four in this embodiment) rods (stud bolts) 16 of a predetermined length are arranged in the axial direction of the rod 16 and the longitudinal direction of the filter frame 12. It is protruded so as to match. Further, as can be clearly understood from the enlarged view of the portion A shown in FIG. 4, a male screw portion 16a having a predetermined length is formed at the tip of the rod member 16.

A filter 14 is accommodated in a space defined by the inside of the filter frame 12 and a portion surrounded by the rod 16. The filter 14 has two layers of a pre-filter (coarse filter) 14a and a main filter 14b,
The pre-filter 14a is disposed on the tip end side of the bar 16 with a smaller thickness than the thickness of the main filter 14b. In the filter frame 12 in which the filter 14 is accommodated, a holding member 18 as a pressing member is
Is arranged.

The holding member 18 is formed in a substantially U-shape, and a hole slightly larger than the outer diameter of the bar 16 is formed on both end pieces so that the respective center axes coincide with each other. Then, the bar 16 is inserted into these holes, and one end piece 18
a is arranged using the fixing tool 20 so that a is pressed against the main surface of the pre-filter 14a. Fixture 2 shown in FIGS.
Numeral 0 is made of phosphor bronze or the like having a property rich in elasticity, and is formed by bending a band-shaped spring material having a predetermined length so that both ends thereof overlap. That is, the overlapping portions 22 which are both end portions of the fixing device 20 are connected by the leaf spring portions 24 which are bent in a substantially U-shape. At this time, the two overlapping portions 22 are formed apart from each other in the directions away from each other.

The overlapping portion 22 and the leaf spring portion 24
A hole having an inner diameter slightly larger than the outer diameter of the bar member 16 is formed at the approximate center of the bar member, a hole formed in the overlapping portion 22 is used as a fixing hole 22a, and a hole formed in the leaf spring portion 24 is formed. The guide hole 24a is used. Here, two overlapping portions 2
As the two are formed apart from each other, the two fixing holes 22a are also formed with their respective central axes slightly apart.
As can be clearly understood from the enlarged view of the portion B shown in FIG.
The inner peripheral surface of the fixing hole 22a is chamfered from the outside.

When the filter 14 is fixed to the filter frame 12 by using the holding member 18 and the fixing member 20, first, the leaf spring portion 24 of the fixing member 20 is elastically deformed in a direction indicated by an arrow in FIG. Then, the fixing hole 22a of the overlapping portion 22
The rod 1 is inserted into the fixing hole 22a and the guide hole 24a in a state where the center axes of the plate spring portion 24 and the guide hole 24a are aligned.
6 in this order. Furthermore, the elastic deformation of the leaf spring portion 24 of the fixing device 20 is restored in a state where the overlapping portion 22 is pressed against the holding metal member 18 and the one end piece 18a of the holding metal member 18 is pressed against the pre-filter 14a. Then, the fixing holes 22
The inner peripheral portion of a is locked by the male screw portion 16a of the bar 16 and the fixture 20 is fixed to the bar 16 (FIG. 4). Therefore, both ends of the filter 14 are engaged with the locking pieces 12 of the filter frame 12.
a (FIG. 3) and the presser fitting 18, the filter 14 is fixed to the filter frame 12.

As shown in FIG. 10, a plurality of filter frames 12 (FIG. 2) to which the filters 14 are fixed are formed in accordance with the shape of the flow path in the air conditioner (12 in this embodiment).
) Are assembled in parallel. And it is arrange | positioned in the casing 28 which is a box of the air conditioner 26 as shown in FIG.11 and FIG.12. At a predetermined position on one side of the casing 28, a return air port 28 for sucking air into the machine is provided.
a and an air supply port 28b for discharging air out of the machine. The return air port 2 is provided inside the casing 28.
8a side, the pre-filter 14a and the main filter 14
b, the cooling coil 30a, the heating coil 30b, and the blower 32 are arranged in this order. An electric motor 34 for driving the blower 32 is provided outside the casing 28 and near the air supply port 28b. Further, on one side surface of the casing 28 on the side of the return air port 28a, an openable and closable inspection port 36 for inspecting the inside of the machine is provided.

[0015] The return air port 28a and the air supply port 28b of the air conditioner 26 are connected to a room to be air-conditioned through a duct (not shown). In operation,
When the electric motor 34 is driven to operate the blower 32 via a belt (not shown), air from the indoor space to be air-conditioned is taken into the casing 28 from the return air port 28a via the duct. Then, after this air is removed through the pre-filter 14a and the main filter 14b, the cooling coil 30a and the heating coil 30 which are heat exchange coils are removed.
Cool or heat to the required temperature through b. The air subjected to such necessary air conditioning is sucked into the blower 32 and supplied from the air supply port 28b to the room to be air-conditioned via the duct.

According to this embodiment, the filter 14 can be fixed to or removed from the filter frame 12 by elastically deforming the leaf spring portion 24 of the fixture 20 and attaching / detaching to / from the bar 16. Therefore, the filter 14 can be easily attached and detached since less work is required as compared with the case of using the conventional wing nut. In addition, since the fixing member 20 is supported by the bar 16 at the guide hole 24 a, there is no possibility that the fixing member 20 will come off naturally due to the vibration of the filter frame 12. And since the wing nut is not used unlike the prior art, the rod 1
Even if rust or dust is generated or adheres to the male screw portion 16a of No. 6, the filter 14 is securely fixed to the filter frame 12 in combination with the chamfered fixing hole 22a of the fixing tool 20 biting into the male screw portion 16a. it can.

Further, in the above-described embodiment, the case where the leaf spring portion 24 of the fixing tool 20 has a shape which is bent into a substantially U-shape has been described. Alternatively, for example, FIGS.
The filter 14 can be fixed to the filter frame 12 using a fixing tool 36 shown in FIG. The fixing device 36 includes a leaf spring portion 38 obtained by bending a band-shaped spring material into a circular shape, and an overlapping portion 40 extending continuously from the leaf spring portion 38 and overlapping each other. A guide hole 38 a and a fixing hole 40 a are formed in the leaf spring portion 38 and the overlapping portion 40, similarly to the fixing device 20.

In the above-described embodiment, the fixing holes 22a and 40a of the fixtures 20 and 36 are chamfered. However, if the fixing holes 22a and 40a can be engaged with the male screw portion 16a of the bar 16, the chamfering is not necessarily required. There is no.

[Brief description of the drawings]

FIG. 1 is an illustrative view showing one embodiment of the present invention;

FIG. 2 is a side view of FIG.

FIG. 3 is a perspective view showing one embodiment of the present invention.

FIG. 4 is an illustrative view showing a fixed portion (A portion in FIG. 1) of the filter 14;

FIG. 5 is an illustrative view showing a fixture.

FIG. 6 is a left side view of the fixture shown in FIG. 5;

FIG. 7 is a right side view of the fixture shown in FIG.

FIG. 8 is an illustrative view showing a chamfered portion (a portion B in FIG. 5) of a fixing hole;

FIG. 9 is an illustrative view showing a method of elastically deforming a leaf spring portion of the fixture.

FIG. 10 is an illustrative view showing a state where a plurality of the embodiments of FIG. 1 are assembled in parallel;

FIG. 11 is a plan view showing an air conditioner incorporating the filter shown in FIG.

FIG. 12 is a front view of FIG.

FIG. 13 is an illustrative view showing a modified example of the fixture.

14 is a left side view of the fixing device shown in FIG.

FIG. 15 is a right side view of the fixing device shown in FIG.

FIG. 16 is an illustrative view showing a conventional technique;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Filter fixing device of an air conditioner 12 ... Filter frame 14 ... Filter 14a ... Prefilter 14b ... Main filter 16 ... Bar 16a ... Male thread part 18 ... Holding bracket 20,36 ... Fixing fixture 22,40 ... Overlapping part 22a, 40a ... fixing holes 24, 38 ... leaf spring portions 24a, 38a ... guide holes 26 ... air conditioners 28 ... casing 28a ... return air ports 28b ... air supply ports 30a ... cooling coils 30b ... heating coils 32 ... blowers 34 ... electric motors

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-148753 (JP, A) Japanese Utility Model 4-20927 (JP, U) Japanese Utility Model 6-24716 (JP, U) Japanese Utility Model 7- 9419 (JP, U) JP-A 52-14709 (JP, U) JP-A 51-81874 (JP, U) JP-B 47-31732 (JP, B1) JP-B 45-699 (JP, Y1) (58) Fields surveyed (Int. Cl. ⁷ , DB name) F24F 3/16 B01D 46/10 F16B 1/02 F16B 2/24 F24F 1/00

Claims (1)

(57) [Claims] 1. A filter frame provided in an air conditioner, a filter housed in the filter frame, a bar projecting from the filter frame and having a male thread at a tip end, and a filter attached to the bar. And a fixing member for fixing the filter to the filter frame by pressing the fixing member, and a fixing member for fixing the pressing member to the rod, wherein the fixing member is formed of a band-shaped elastic plate, Two fixing holes formed with the guide hole interposed therebetween are formed in the band-shaped elastic plate, and the band-shaped elastic plate is elastically deformed so that the two fixing holes are aligned with each other. The rod is inserted through the guide hole, the elastic deformation of the band-shaped elastic plate is restored, the fixing hole is locked to the male screw portion of the rod, and the pressing member is fixed to the rod. Features That, filter retainer of the air conditioner.