JPH0528409U - Filter attachment / detachment structure - Google Patents

Abstract

(57) [Summary] [Purpose] A filter can be vertically attached and removed without sliding horizontally, and a soft filter material without a frame can be supported without deformation. [Structure] An air intake port 2 opening in a part of the housing 1, a plurality of small holes 6 provided in the housing 1 around the air intake port 2, and an opening 11 in which a filter 10 is stretched on the front surface. A frame-shaped filter cap 10 having a plurality of legs, a plurality of legs 13 protruding from the back of the filter cap 10, inserted into a plurality of small holes 6, and having cutouts 14 for locking formed therein; The elastic body 7 is provided between the cap 10 and a part of the peripheral edge of the air intake port 2. The filter cap 10 is slightly moved laterally so as to compress the elastic body 7, and the notch 14 of the leg portion 13 is formed. With the lock released,
Filter attachment / detachment structure in which the filter cap 10 is attachable / detachable in the vertical direction

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filter attachment / detachment structure that is attached to an air intake port of a housing such as an air conditioner, a dehumidifier, or an air purifier.

[0002]

[Prior Art]

 Many devices, such as air conditioners, dehumidifiers, and air purifiers, take in air from the outside of the housing, perform heat exchange, dehumidification, purification, etc. inside and then discharge it outside the housing again. is there. In these devices, in order to protect the equipment inside the housing from dust contained in the air taken in, a filter is generally attached to the air intake port to filter the air. However, if the filter becomes clogged, the pressure loss will increase and it is often necessary to remove and clean the filter. For this reason, the filter must be easy to put on and take off, and it must cover the air intake port securely when it is put on.

FIG. 2 shows an example of a filter attachment / detachment structure that has been often used conventionally. In this example, the filter 3 is attached to and detached from the air intake port 2 of the housing 1 by sliding along the surface thereof. A slide rail 4 for guiding the filter 3 is provided. Regardless of whether the filter 3 is a hard mesh plate, if it is made of a fibrous material that is often used as a filter or a soft material such as a thin sponge-like material, put it along the slide rails 4. Since the rigidity is insufficient for sliding, it is usual to attach a frame around the filter 3 with metal or hard synthetic resin to reinforce it.

[0004]

[Problems to be solved by the device]

 As shown in FIG. 2, the filter attachment / detachment structure that has been commonly and conventionally used is a so-called slide type, and in order to slide the filter 3 at the time of attachment / detachment, it is considerably wide near the air intake port. Since it is necessary to provide a free space within the range, it has the drawback of limiting the layout and design of the equipment. Also, when using a soft filter material, it is necessary to attach a frame to each filter 3 to reinforce it, and it is not possible to use it only by cutting the filter material into the required size. There is also the problem that the price of the filter 3 will increase because it cannot be done.

In order to solve such a problem of the conventional filter attachment / detachment structure, the present invention does not slide the filter in the lateral direction, and the direction that is the same as the air flow direction and has the least restriction. In other words, a new type of filter that can be easily attached and detached in the direction perpendicular to the filter surface, is securely attached, and can be used even with a soft material filter without individual frames Providing a filter attachment / detachment structure is a problem to be solved by the invention.

[0006]

[Means for Solving the Problems]

 The filter attachment / detachment structure according to the present invention has an air inlet opening in a part of the housing, a plurality of small holes provided on the housing side around the air inlet, and a filter material attached to the front surface. A frame-shaped filter cap having an opening formed therein, and a projection provided behind the filter cap, inserted into the plurality of small holes of the housing, and formed with notches for locking. A plurality of legs that are provided and between the filter cap and a part of the peripheral edge of the air inlet of the casing, and the leg is inserted into the small hole to attach the filter cap to the air inlet. An elastic body that biases the filter cap to move slightly laterally in the mounted state and locks the notch formed in the leg portion with the small hole of the housing. And

[0007]

[Action]

 When attaching the filter cap to the air inlet, keep the elastic caps compressed and move the filter cap slightly to the side, and set the legs of the filter cap to If you release the hand after inserting it into the hole, the notch of the leg is locked in the small hole to prevent the filter cap from coming off. In this state, the filter material of the filter cap covers the air intake port, and dust can be filtered from the air passing through the air intake port.

When cleaning or replacing the filter, if the filter cap is moved slightly laterally against the elastic body, the notch of the leg part will come off from the small hole. By moving the filter cap in the vertical direction, the filter cap can be removed together with the filter. Since the filter is supported by the filter cap, it is easy to handle and clean even if it is made of soft material. When replacing the filter, even a soft filter material without a frame can be stably supported by fitting it into the filter cap.

[0009]

【Example】

 FIG. 1 shows an embodiment of a filter attachment / detachment structure according to the present invention. As in the conventional example shown in FIG. 2, reference numeral 1 is a housing made of thin steel plate or synthetic resin that constitutes the outer shell of equipment such as an air conditioner, dehumidifier, and air cleaner, and 2 is the front surface of the housing 1. It shows an air intake port as an opening provided in the etc. In the case of this embodiment, a flange 5 projecting outward with a narrow width is formed as a part of the casing 1 around the air inlet 2 by a method such as integral molding or welding. Four long holes 6 are provided on the surface of the casing 1 outside the flange 5, and an elastic body 7 such as a spring or a small piece of elastic rubber is provided on one side of the flange 5. It is installed. When the elastic body 7 is a coil spring as shown in the drawing, a headed pin or a small bolt 8 is inserted into the elastic body 7, and the tip of the elastic body 7 slides freely through the hole of the flange 5 and inside the flange 5. The structure may be such that it is prevented from coming off by a circlip or a nut 9.

Reference numeral 10 denotes a filter cap having a frame-like shape, and a filter 12 is fitted into the frame of the opening 11 from the inside. When the filter 12 is made of a soft material, it is possible to reliably prevent the filter 12 from deforming by pressing the periphery of the filter 12 with an inner frame or the like that fits inside the filter cap 10. The filter cap 10 is provided with four L-shaped legs 13 corresponding to the long holes 6 provided in the housing 1, and the width w of the tip thereof is equal to the length of the long holes 6. It's about the same size.

When the filter cap 10 is fitted along the flange 5 in the direction perpendicular to the surface of the housing 1, the elastic body 7 is compressed by the inside of one side (left side in FIG. 1) of the filter cap 10. In this state, the tip of the leg 13 can be inserted into the long hole 6. When the hand is released from the filter cap 10 after the insertion, the elastic body 7 is formed at the base of the L-shaped leg portion 13 by pushing one side of the filter cap 10 to the left in FIG. The notch 14 is locked to the edge of the slot 6. In this way, the filter cap 10 can be mounted at a position that completely covers the air intake port 2 of the housing 1, and the state can be reliably maintained.

As is apparent from the structure described above, in order to remove the filter cap 10 from the housing 1 in order to clean or replace the filter 12, the filter cap 10 is moved against the elastic body 7 in FIG. If it is moved slightly to the right, the notch 14 of the L-shaped leg 13 and the long hole 6 are disengaged, and the tip of the leg 13 can be pulled out from the long hole 6. The cap 10 may be removed from the housing 1. As described above, the filter cap 10 can be attached and detached very easily, and at that time, it is not necessary to slide the filter cap to a large extent, and the filter cap 10 can be attached and detached by moving in a direction substantially perpendicular to the surface of the filter 12. In addition, the mounting condition is stable and reliable, and there is no risk of deformation even if the frame is not attached when the filter material is soft.

In the illustrated embodiment, a frame-like flange 5 is provided on the air intake port 2 of the casing 1 to guide the filter cap 10 so that the filter 12 is attached to the air intake port 2. However, in the present invention, the flange 5 is not an indispensable constituent element, so that it is not necessary to provide it. However, in that case, a small protrusion for attaching the elastic body 7 is provided at a part of the peripheral edge of the air intake port 2. Further, since the elastic body 7 may be attached to the inside of the filter cap 10 instead of the side of the air suction port 2, in this case, a small protrusion for receiving the elastic body 7 is formed on a part of the peripheral edge of the air suction port 2. Will be provided.

[0014]

[Effect of the device]

 By adopting the attachment / detachment structure of the present invention, the filter cap supporting the filter can be moved in a direction substantially perpendicular to the surface of the filter to be easily attached / detached. Therefore, it is not necessary to provide a space around the filter for sliding the filter, which facilitates the arrangement and design of the device. Since the filter hardly slides at the time of attachment and detachment, there is no fear of deformation even if a soft filter material is used, and since a cut-off filter material without a frame can be used, the filter becomes inexpensive. In addition, even though it is easy to put on and take off, the attached state is securely held, and there is no fear that it will come loose.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Air inlet 3 ... Filter (conventional technology) 4 ... Slide rail 5 ... Flange 6 ... Long hole 7 ... Elastic body 8 ... Pin or bolt 9 ... Circlip or nut 10 ... Filter cap 11 ... Opening 12 … Filter 13… L-shaped leg 14… Notch

Claims (1)

[Scope of utility model registration request] 1. An air inlet opening to a part of the housing, a plurality of small holes provided on the housing side in the vicinity of the air inlet, and an opening in which a filter material is stretched on the front surface. A frame-shaped filter cap; a plurality of leg portions projecting behind the filter cap, inserted into the plurality of small holes of the housing, and formed with notches for locking; By inserting the leg portion provided between the filter cap and a part of the peripheral edge of the air intake port of the housing into the small hole, the filter cap is attached to the air intake port. A structure for attaching / detaching a filter, which comprises an elastic body for urging it to move slightly laterally to lock the notch formed in the leg portion in the small hole of the housing.