Ventilation device provided with dust removable filter

Abstract

The present invention provides a ventilation device provided with a dust removable filter, the ventilation device comprising: a case having an air inlet and an air outlet; a blowing fan that is installed inside the case, and suctions air from the indoor side and exhausts the air to the outside; and a filter that is attached between the air inlet and the air outlet and is for collecting dust in the air discharged from the indoor side. The filter includes: a frame for supporting a dust collection mesh; the dust collection mesh that has an opening portion for discharging dust and attaches to the frame; a brush that is rotated by a motor and pressed against the dust collection mesh to wipe away the dust; an opening hole formed in the frame so as to match the opening portion of the dust collection mesh; a damper that is formed in the opening hole and opened and closed by its own weight or by the elasticity of a spring; and a damper opening / closing means formed in the brush so as to open the damper. With regard to removing the dust collected in the filter installed in the ventilation device, rather than removing, from the indoor side, the dust that flows in from the indoor side and is collected in the filter, the dust itself is discharged to the outside. Accordingly, the present invention solves the disadvantage of requiring additional effort to handle the collected dust and the disadvantage of uncleanliness while the dust is shaken out and removed, and thus has the effect of keeping the filter in a clean state at all times without the need to clean or replace the filter.

Description

A ventilation device equipped with a filter capable of removing dust

[0001] The present invention relates to a ventilation device having a filter capable of removing dust, and more particularly, to a ventilation device having a filter that effectively discharges dust collected in the filter of the ventilation device to the outdoors, thereby minimizing the need for periodic cleaning or replacement of the filter of the ventilation device.

[0002] In general, due to recent environmental pollution, a lot of dust is floating in the air, and due to the great concern for health, various ventilation devices are being used to forcibly exhaust indoor air through blower fans for ventilation inside buildings. These ventilation devices utilize filters to remove dust contained in the air exhausted from the indoors.

[0003] The filter used in the above ventilation device is intended to filter out dust in the air discharged indoors. After a considerable amount of time of use, dust accumulates on the inside of the filter's dust collecting net, i.e., on the indoor side, gradually reducing the efficiency of the filter. Therefore, it must be shaken off or replaced. However, if this is left for a long time, the filter may become completely clogged, which may cause the function of the blower fan to deteriorate and the motor to malfunction.

[0004] If a lot of dust accumulates on the filter like this, not only will the air flow become worse, but the dust that is caught in the filter and cannot be discharged will also flow back into the room, causing a decline in indoor air quality and threatening the health of indoor residents.

[0005] Therefore, due to users' indifference and the difficulty of replacing filters, users often end up removing the filters altogether, which causes dust to accumulate on the blower fan of the ventilation device, causing the blower motor to malfunction, and in many cases, the dust removal effect of the filter is not utilized at all.

[0006] In addition, when removing dust collected in the filter installed in the ventilation device, it is not a structure that discharges dust coming in from indoors to the outdoors, but rather a method that removes it by shaking it in the direction of air inflow, that is, back indoors, so it removes dust in the direction of air inflow, that is, back indoors, and therefore has the disadvantage of being unclean, such as the user having to remove the shaken dust or dust flying in the process of removing them.

[0007]

[0008] [Prior Art Literature]

[0009] 1. Republic of Korea Patent No. 10-1573772

[0010] The purpose of the present invention to solve the above-mentioned problems is to solve the disadvantage of requiring separate effort to dispose of the dust collected on the filter installed in the ventilation device by discharging the dust itself to the outdoors instead of removing the dust collected on the filter from the indoors, and the disadvantage of uncleanness in the process of shaking and removing the dust, thereby eliminating the need to clean or replace the filter and allowing the filter to always be kept clean.

[0011] In order to achieve the above-described object, a solution according to an embodiment of the present invention comprises a case having an air inlet and an air outlet, a blower installed inside the case to suck in indoor air and discharge it outdoors, and a filter attached between the air inlet and the air outlet to collect dust in the air discharged indoors, wherein the filter comprises a frame for supporting a dust collecting net, a dust collecting net attached to the frame having an opening to enable discharge of dust, a brush that rotates by a motor so as to be in close contact with the dust collecting net and shake off dust, an opening formed in the frame to coincide with the opening of the dust collecting net, a damper formed in the opening to open and close by its own weight or the elasticity of a spring, and a damper opening / closing means formed in the brush to open the damper.

[0012] In another embodiment of the present invention, the damper opening / closing means is characterized by being configured as a push rod installed on the brush head or one side of the brush to push and open the damper.

[0013] The effect of the present invention as described above is that, when removing dust collected on a filter installed in a ventilation device, the dust itself is discharged outdoors instead of being removed indoors by requiring separate effort to dispose of the dust that has been shaken off, and the disadvantage of being unclean in the process of shaking off and removing the dust, so that the filter can always be kept clean without having to clean or replace the filter, making it a very useful invention.

[0014] Figure 1 is a perspective view of the ventilation device of the present invention.

[0015] Figure 2 is an exploded perspective view of the ventilation device of the present invention.

[0016] Figure 3 is an exploded perspective view of the filter unit in the present invention.

[0017] Figure 4 is a cross-sectional view showing the operating state of the filter unit in the present invention.

[0018] Figure 5 is a cross-sectional view of Figure 1.

[0019] Figure 6 is a reference diagram showing the usage status of the ventilation device of the present invention.

[0020] Fig. 7 is an exploded perspective view of another embodiment of the filter unit in the present invention.

[0021] Fig. 8 is an exploded perspective view of another embodiment of the filter unit in the present invention.

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily practice the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. The technical terminology used herein is only for the purpose of referring to specific embodiments and is not intended to limit the present invention. In addition, the singular forms used herein include plural forms unless the phrases clearly indicate the opposite meaning. The meaning of "comprising" as used herein specifies a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other specific characteristics, regions, integers, steps, operations, elements, components, and / or groups. Unless otherwise defined, all terms, including technical and scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. Terms defined in commonly used dictionaries are additionally interpreted as having a meaning consistent with the related technical literature and the presently disclosed content, and are not to be construed as having an ideal or formal meaning unless otherwise defined.

[0023] The embodiments of the present invention described with reference to the perspective drawings specifically illustrate ideal embodiments of the present invention. Consequently, various modifications to the drawings, such as modifications in manufacturing methods and / or specifications, are anticipated. Accordingly, the embodiments are not limited to the specific shapes of the regions depicted, and include, for example, modifications in shape due to manufacturing. For example, regions depicted or described as being flat may generally have rough / rough and non-linear characteristics. Furthermore, portions depicted as having sharp angles may be rounded. Therefore, the regions depicted in the drawings are intended to be approximate only, and their shapes are not intended to depict the precise shapes of the regions, nor are they intended to narrow the scope of the present invention.

[0024] Hereinafter, a preferred embodiment of a filter according to the present invention will be described in detail with reference to the attached drawings.

[0025] FIG. 1 is a perspective view of a ventilation device of the present invention, FIG. 2 is an exploded perspective view of the ventilation device of the present invention, FIG. 3 is an exploded perspective view of a filter unit in the present invention, FIG. 4 is a cross-sectional view of FIG. 1, FIG. 4 is a cross-sectional view showing the operating state of the filter unit in the present invention, FIG. 5 is a cross-sectional view of FIG. 1, FIG. 6 is a reference view showing the use state of the ventilation device of the present invention, FIG. 7 is an exploded perspective view of another embodiment of the filter unit in the present invention, and FIG. 8 is an exploded perspective view of still another embodiment of the filter unit in the present invention.

[0026] First, it should be noted that, among the drawings, identical components or parts are indicated by identical reference numerals, where possible. Furthermore, in describing the present invention, detailed descriptions of related known functions or configurations are omitted to avoid obscuring the gist of the present invention.

[0027] The ventilation device (1000) of the present invention comprises a case (1100) having an air inlet (1111) and an air outlet (1120), a blower fan (1130) installed inside the case (1100) to suck in indoor air and discharge it outdoors, and a filter (100) attached between the air inlet (1111) and the air outlet (1120) to collect dust in the air discharged indoors, wherein the filter (100) is provided with an opening (140) through which dust can be discharged, a frame (130) for installing a motor (160), a dust collecting net (120) attached to the frame (130) excluding the opening (140), a brush (170) that is in close contact with the dust collecting net (120) and rotates by the motor (160) to shake off dust, and It is composed of a damper (150) formed in an opening (140) so as to block the opening (140) by its own weight, its own weight, or the elasticity of a spring (180), and a damper opening / closing means formed in the damper (150) so as to open the damper (150) by the push of a brush (170).

[0028] The above damper (150) may be composed of an opening plate (151) for blocking the opening (140), an axis (152) formed on both sides of the opening plate (151), and a damper opening / closing means formed on one side of the opening plate (151).

[0029] The above shaft (152) is configured to allow the damper (150) to rotate. In the present invention, the shaft can be formed in various structures, such as a hinge or a bracket type. As long as the damper can block the opening (140) without being separated from the opening (140) and can be opened by the pushing action of the brush (170), the shape and structure of the shaft are not a problem.

[0030] Eventually, the damper (150) is pushed by the brush (170) through the damper opening / closing means, thereby opening the opening (140), and the dust from the dust collecting nets that the brush (170) has shaken off by the suction pressure of the blower fan (1130) of the ventilation device, etc., can be discharged to the outdoors through the opening (140).

[0031] At this time, it is preferable that the damper opening / closing means be configured with one or more inclined projections (153) protruding from one side of the damper (150) so that the brush (170) can easily be pushed out. However, instead of the inclined projections, a rotatable wheel (not shown) may be formed on one side of the damper (150) and the brush (170) body may press the wheel to open the damper (150).

[0032] Therefore, if the damper (150) that blocks the opening (140) is structured so that it can be opened only with a brush (170), it is natural that this falls within the technical category of the damper opening / closing means of the present invention.

[0033] In the present invention, the filter may have a structure such as the filter (100) of the structure shown in FIG. 3, as well as the filter (200) of the structure shown in FIG. 6 or the filter (300) of the structure shown in FIG. 7.

[0034] In the present invention, since the damper (150) is closed by its own weight, the inclined projection (150) can be pushed open by the brush (170) alone. However, as shown in FIG. 5, when the elasticity of the spring (180) acts on the damper (150), it is preferable that the damper (150) be configured to be pushed by the main body of the brush (170). As described above, the spring (180) structure is required for the damper (150) when the damper (150) cannot be opened and closed by its own weight. In addition, it is also required when the suction pressure of the blower fan (1130) of the ventilation device (1000) of the present invention is greater than the weight of the damper (150). In such a case, it is natural that the pushing pressure of the brush (170) should be increased enough to overcome the elasticity of the spring (180).

[0035] In the present invention, the inclined projection (153) has a structure in which the inclination changes depending on the direction of travel of the brush (170), and is initially low and then gradually higher, so that when the brush (170) rotates and presses the inclined projection (153) of the damper (150), the opening (140) opens, and at the moment when the opening (140) opens, the dust removed from the dust collecting net (120) by the brush (170) by the suction pressure of the blower fan (1130) of the ventilation device escapes through the open gap of the damper (150) together with the sucked air and is discharged outdoors.

[0036] In this way, the present invention has a structure that automatically cleans the filter and discharges dust outdoors, so that the user does not need to clean or replace the filter, and as a result, indoor air discharge efficiency can be very good.

[0037] It is preferable that the above-described ventilation device of the present invention wraps the outside of the frame (130) with a circular edge portion (110), and the frame (130) has a structure in which a plurality of edges extend inward from the edge portion (110), thereby enabling the frame (130) to stably support the motor (160) and the dust collecting net (120).

[0038] The above frame (130) has a structure in which a motor shaft penetrates the center and is connected to the shaft (161) of a brush (170) by penetrating the center of a dust collecting net (120).

[0039] In addition, a hole (121) must be formed on one side of the dust collecting net (120) so that an opening (140) is formed in the hole (121). At this time, the shape of the dust collecting net (120) is preferably circular, because the brush (170) must shake off dust stuck to one side of the dust collecting net (120) while rotating by the motor (160).

[0040] The above-described frame portion (110) may be provided with a coupling means (111) for coupling to one side of an external air inlet of an air conditioner (not shown). The coupling means formed in the frame portion (110) may include a screw hole for fastening a screw when coupling with a screw, a circular connecting hole protruding on the inside of the external air inlet may be formed to couple in a forced fit manner, and may be coupled by being caught by each other using a known coupling and latching means, or a spiral portion may be formed to couple these in a screw coupling manner. In addition, it goes without saying that various known coupling means may be used.

[0041]

[0042] As described above, although the present invention has been described by limited embodiments, the present invention is not limited thereto, and various modifications and variations are possible by a person having ordinary skill in the art to which the present invention pertains within the scope of the technical idea of ​​the present invention and the equivalent scope of the patent claims to be described below.

[0043]

[0044] [Explanation of symbols]

[0045] 1000: Ventilation device 1100: Case

[0046] 1120: Air exhaust port 1130: Blower fan

[0047] 100: Filter

[0048] 110: Frame 120: Dust collection net

[0049] 130: Frame 140: Opening

[0050] 150: Damper 160: Motor

[0051] 170: Brush 180: Spring

Claims

1. A ventilation device comprising a case having an air inlet and an air outlet, a blower fan installed inside the case to suck in indoor air and discharge it outdoors, and a filter attached between the air inlet and the air outlet to collect dust in the air discharged indoors, wherein the filter comprises a frame for supporting a dust collecting net, a dust collecting net attached to the frame and having an opening to enable dust discharge, a brush that rotates by a motor so as to be in close contact with the dust collecting net and shake off dust, and a filter having an opening formed in the frame to match the opening of the dust collecting net. A ventilation device having a dust-removing filter, characterized in that it comprises a damper formed in the opening to be opened and closed by the elasticity of a spring or its own weight, and a damper opening / closing means formed in the brush to open the damper.

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