Filter cleaning device

Abstract

The present invention provides a filter cleaning device that can improve the dust removal performance from the cleaning body by a dust removal component. [Solution] The dust discharge member 4 constituting the filter cleaning device 10 has a dust removal member 6 that is rotatable while in contact with the cleaning body 2 near the opening 3. The dust removal member 6 has a dust removal section 6a that scrapes off dust adhering to the cleaning body 2, and the tip of the dust removal section 6a is formed to extend from one opening edge 3a of the opening 3 toward the other opening edge 3b. When the cleaning body 2 comes into contact with the tip of the dust removal section 6a, the dust removal section 6a is configured to rotate away from the opening 3 so that the tip of the dust removal section 6a is lifted.

Description

Technical Field

[0001] The present invention relates to a filter cleaning device having a dust removing member for removing dust adhering to a cleaning body.

Background Art

[0002] Conventionally, a filter cleaning device has been known that is installed near a cleaning body for removing dust from a filter body and has a dust removing member for removing dust adhering to the cleaning body (Patent Document 1).

[0003] The filter cleaning device described in Patent Document 1 includes a rotary cleaning body for removing dust from a surface to be cleaned, a dust box having an opening for accommodating dust, a lid attached to the opening of the dust box, and a dust removing body provided on the lid for removing dust adhering to the rotary cleaning body. The lid has an opening, and a part of the rotary cleaning body protrudes from the opening. The rotary cleaning body is detachable and is rotatably supported near the opening of the dust box. The upper ends of the side walls of at least three sides of the dust box including the side walls of both end faces of the dust box in the axial direction of the rotary cleaning body are located vertically above the lower end of the rotary cleaning body. The tip of the dust removing body is formed from the lid toward the inside of the dust box.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the filter cleaning device described in Patent Document 1, since the dust removing body is fixed to the lid, the position where the tip of the dust removing body contacts the rotary cleaning body is substantially constant, and there is a problem that dust is not efficiently removed from the rotary cleaning body.

[0006] The present invention aims to solve the aforementioned conventional problems and to provide a filter cleaning device that can improve the dust removal performance from the cleaning body by the dust removal member. [Means for solving the problem]

[0007] To solve the aforementioned conventional problems, the invention of claim 1 provides a filter cleaning device comprising: a filter body for capturing dust; a cleaning body for contacting the surface of the filter body to remove dust; a dust discharge member disposed at one end of the filter body and having an opening for passing dust transported by the cleaning body; and a movable mechanism for moving the cleaning body back and forth between one end and the other end of the filter body and for transporting dust to the opening of the dust discharge member, wherein the dust discharge member has a dust removal member rotatable in contact with the cleaning body near the opening, the dust removal member has a dust removal section for scraping off dust adhering to the cleaning body, the tip of the dust removal section is formed to extend from one opening edge of the opening toward the other opening edge, and when the cleaning body contacts the tip of the dust removal section, it rotates toward the opening so that the tip of the dust removal section is lifted.

[0008] In the invention of claim 1, the cleaning body is moved back and forth between one end and the other end of the filter body, and when the cleaning body contacts the dust removal part of the dust removal member from the tip side, it is configured to rotate in a direction away from the opening so that the tip of the dust removal part is lifted. This allows the dust removal part to come into contact with dust adhering between the tip and base of the cleaning body, thereby improving the dust removal performance by removing dust adhering to the cleaning body. Furthermore, by rotating the dust removal part away from the opening, the width of the opening through which dust passes can be widened, allowing dust to be efficiently transported to the opening.

[0009] The invention of claim 2 is characterized in that, in the invention of claim 1, when the cleaning body contacts the dust removal part from the base side, the tip of the dust removal part rotates in a direction toward the opening surface of the opening. This reduces the resistance when the cleaning body contacts the dust removal member by rotating the dust removal part toward away from the cleaning body. Furthermore, since the cleaning body contacts the dust removal part along from the base side to the tip side, dust adhering to the dust removal part can be transferred to the opening. In addition, since the dust removal part rotates in a direction toward closing the opening, the width of the opening through which dust passes can be narrowed, and the removed dust can be prevented from re-adhering to the cleaning body.

[0010] The invention of claim 3 is characterized in that, in the invention of claim 1, two dust removal members are each positioned near the opposing edges of the opening. As a result, while the cleaning body is moved back and forth between one end and the other end of the filter body, the dust removal portions of each of the two dust removal members come into contact with the cleaning body a total of four times, thereby further improving the dust removal performance in removing dust adhering to the cleaning body. In addition, the removal of dust adhering to the cleaning body by the dust removal members and the removal of dust adhering to the dust removal members by the cleaning body can be easily performed in a series of back-and-forth movements.

[0011] The invention of claim 4 is characterized in that, in the invention of any one of claims 1 to 3, the dust removal member has a tip that is inclined toward the direction away from the opening surface of the opening when it is not in contact with the cleaning body. As a result, when the cleaning body is composed of a brush member made up of multiple bristles, the dust removal part can be made to bite into the bristles of the cleaning body, thereby further improving the dust removal performance in removing dust adhering to the cleaning body. In addition, because the tip of the dust removal part is inclined, the dust removal member can be rotated smoothly when it comes into contact with the cleaning body.

[0012] The invention of claim 5 is characterized in that, in any of the inventions of claims 1 to 3, the dust removal member has a plurality of two types of dust removal pieces with different lengths, and the dust removal pieces are formed alternately and continuously. As a result, the dust adhering to the bristles of the cleaning body can be reliably removed in the process of being guided into the wide valleys between the long dust removal pieces and then reaching the narrow valleys between the short dust removal pieces and the adjacent long dust removal pieces, thereby further improving the dust removal performance for removing dust adhering to the cleaning body.

[0013] The invention of claim 6 is a rotating brush in any of the inventions of claims 1 to 3, wherein the cleaning body is a rod-shaped shaft member and a brush member from which a plurality of bristles extend radially from the side surface of the shaft member, and the rotation direction of the rotating brush is such that it moves from bottom to top, approaching the dust removal member from the filter body. This allows the dust removal part to bite into the bristles of the brush member constituting the rotating brush, thereby further improving the dust removal performance in removing dust adhering to the rotating brush. Furthermore, the rotation direction of the rotating brush, when contacting from the tip side of the dust removal part, rotates in a direction that lifts the tip of the dust removal part, and when contacting from the base side of the dust removal part, rotates in a direction that approaches the opening surface of the opening, thus assisting the rotation of the dust removal member.

[0014] The invention of claim 7 is characterized in that, in any of the inventions of claims 1 to 3, the dust removal member has a rotation-preventing member so that it can rotate up to approximately 90 degrees with respect to the opening surface of the opening. This increases the contact area between the dust removal member and the cleaning body, and further improves the dust removal performance in removing dust adhering to the cleaning body.

[0015] The invention of claim 8 is characterized in that, in any of the inventions of claims 1 to 3, the dust discharge member has a dust box formed integrally with or separately for collecting dust that has passed through the opening. This makes it possible to discharge the dust collected in the dust box to the outside of the filter cleaning device. [Effects of the Invention]

[0016] The invention of the filter cleaning device according to claim 1 can improve the dust removal performance of removing the dust adhering to the cleaning body. The inventions of claims 2 to 5 can further improve the dust removal performance of removing the dust adhering to the cleaning body.

[0017] The invention of claim 6 can further improve the dust removal performance of removing the dust adhering to the rotating brush. In addition, the invention of claim 7 can expand the contact area between the dust removal member and the cleaning body, and can further improve the dust removal performance of removing the dust adhering to the cleaning body. In addition, the invention of claim 8 can discharge the dust collectively to the outside of the filter cleaning device.

Brief Description of the Drawings

[0018] [Figure 1] Perspective view showing an air conditioner equipped with the filter cleaning device according to the present invention [Figure 2] Cross-sectional view showing an outline of the internal structure of an air conditioner equipped with the filter cleaning device according to the present invention [Figure 3] Perspective view showing a first embodiment of the filter cleaning device according to the present invention [Figure 4] (a) - (e) Side view showing the operation of the filter cleaning device of the first embodiment [Figure 5] (a) Partially enlarged perspective view showing a first embodiment of the dust removal member (b) Partially enlarged perspective view showing a second embodiment of the dust removal member [Figure 6] (a) - (e) Side view showing the operation of the filter cleaning device of the second embodiment

Modes for Carrying Out the Invention

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited by these embodiments. FIG. 1 is a perspective view showing an air conditioner equipped with a filter cleaning device according to the present invention, and FIG. 2 is a cross-sectional view showing an outline of the internal structure of the air conditioner equipped with the filter cleaning device according to the present invention.

[0020] As shown in FIGS. 1 and 2, in the air conditioner 30, a suction port 32 for sucking outside air containing indoor dust is formed above an air conditioner main body 31 attached to an indoor wall, and a blowout port 33 for blowing clean air into the room is formed below. An air passage 34 communicating the suction port 32 and the blowout port 33 is formed in the air conditioner main body 31.

[0021] Also, in the air passage 34, a filter cleaning device 10 according to the present invention having a filter body 1 for capturing dust passing from upstream to downstream, a heat exchanger 35 for supplying cold air or warm air, and a blower 36 for sucking indoor air from the suction port 32 and discharging the air heat-exchanged by the heat exchanger 35 from the blowout port 33 are arranged.

[0022] Furthermore, in the air conditioner main body 31, a control body for controlling the rotational speed of the blower 36 and the energy of cold air or warm air of the heat exchanger 35 is housed in a control room (not shown). Also, an opening / closing lid 37 is formed in the air conditioner main body 31 for taking out and disposing of a dust box (not shown) in which dust captured by the filter body 1 is stored.

[0023] FIG. 3 is a perspective view showing a first embodiment of the filter cleaning device according to the present invention, and FIGS. 4(a) to (e) are side views showing the operation of the filter cleaning device of the first embodiment. The first embodiment of the filter cleaning device according to the present invention will be described below using these figures.

[0024] The filter cleaning device 10 of the first embodiment includes a filter body 1 that captures dust, a cleaning body 2 that contacts the surface of the filter body 1 to remove dust, a dust discharge member 4 positioned at one end of the filter body 1 and having an opening 3 for passing the dust transported by the cleaning body 2, and a movable mechanism 5 that moves the cleaning body 2 back and forth between one end and the other end of the filter body 1 and transports the dust to the opening 3 of the dust discharge member 4. The movable mechanism 5 consists of a rotating belt or chain 5a to which one end of the cleaning body 2 is fixed, and a motor 5b that rotates the rotating belt or chain 5a, and the timing of the rotation of the motor 5b is controlled by a control unit (not shown).

[0025] The dust discharge member 4 has a dust removal member 6 located near the opening 3 that is rotatable while in contact with the cleaning body 2. The dust removal member 6 has a dust removal section 6a that scrapes off dust adhering to the cleaning body 2. The tip of the dust removal section 6a is formed to extend from one opening edge 3a of the opening 3 toward the other opening edge 3b. When the cleaning body 2 comes into contact with the tip of the dust removal section 6a, the dust removal section 6a is configured to rotate away from the opening 3 so that its tip is lifted (see Figures 4(b) and 4(d)). This allows the dust removal section 6a to come into contact with dust X adhering to the cleaning body 2 from the tip to the base, improving the dust removal performance by removing dust X adhering to the cleaning body 2. Furthermore, by rotating the dust removal section 6a away from the opening 3, the opening width through which dust X passes can be widened, allowing dust X to be efficiently transported to the opening 3.

[0026] Furthermore, the dust removal member 6 is configured such that when the cleaning body 2 contacts the dust removal section 6a from the base side, the tip of the dust removal section 6a rotates toward the opening surface 3c of the opening 3 (see Figures 4(c) and 4(d)). This reduces the resistance when the cleaning body 2 contacts the dust removal member 6 by rotating the dust removal section 6a toward away from the cleaning body 2. Also, since the cleaning body 2 contacts the dust removal section 6a from the base side to the tip side, dust X adhering to the dust removal section 6a can be transferred to the opening 3. In addition, since the dust removal section 6a rotates toward closing the opening 3, the opening width through which the dust X passes can be narrowed, preventing the removed dust X from re-adhering to the cleaning body 2.

[0027] Two dust removal members 6, 6 are positioned near the opposing opening edges 3a, 3b of the opening 3, respectively. As a result, while the cleaning body 2 is moved back and forth between one end and the other end of the filter body 1, the dust removal portions 6a, 6a of the two dust removal members 6, 6 come into contact with the cleaning body 2 a total of four times, thereby further improving the dust removal performance in removing dust X adhering to the cleaning body 2. In addition, the removal of dust X adhering to the cleaning body 2 by the dust removal members 6 and the removal of dust X adhering to the dust removal members 6 by the cleaning body 2 can be easily performed in a series of back-and-forth movements.

[0028] Furthermore, in the initial state when the dust removal member 6 is not in contact with the cleaning body 2, the tip of the dust removal section 6a is inclined toward a direction away from the opening surface 3c of the opening 3 (see Figures 4(a) and 4(e)). As a result, if the cleaning body 2 is composed of a brush member made up of multiple bristles, the dust removal section 6a can be made to bite into the bristles of the cleaning body 2, thereby further improving the dust removal performance in removing dust X adhering to the cleaning body 2. In addition, because the tip of the dust removal section 6a is inclined, the dust removal member 6 can be rotated smoothly when it comes into contact with the cleaning body 2.

[0029] The dust removal member 6 has anti-rotation members 7a and 7b, and it is preferable that these anti-rotation members 7a and 7b allow it to rotate up to approximately 90 degrees with respect to the opening surface 3c of the opening 3. This increases the contact area between the dust removal member 6 and the cleaning body 2, and further improves the dust removal performance in removing dust X adhering to the cleaning body 2.

[0030] The dust discharge member 4 has a dust box 8 that is either integrated with or separate from the dust box 8 that collects the dust that has passed through the opening 3. This allows the dust X collected in the dust box 8 to be discharged all at once to the outside of the filter cleaning device 10.

[0031] Figure 5(a) is a partially enlarged perspective view showing a first embodiment of the dust removal member. The dust removal member 6 of the first embodiment has multiple dust removal pieces 6A and 6B of two different lengths, with long dust removal pieces 6A and short dust removal pieces 6B being formed alternately in a continuous manner. As a result, the bristles constituting the cleaning body are guided into the wide valleys 6b between the long dust removal pieces 6A, and then, in the process of reaching the narrow valleys 6c between the short dust removal pieces 6B and the adjacent long dust removal pieces 6A, dust adhering to the bristles can be reliably removed, further improving the dust removal performance for removing dust adhering to the cleaning body.

[0032] Figure 5(b) is a partially enlarged perspective view showing a second embodiment of the dust removal member. The dust removal member 16 of the second embodiment has a plurality of dust removal pieces 16A of substantially the same length as the dust removal section 16a. In the process in which the bristles constituting the cleaning body are guided into the valleys 16b formed between adjacent dust removal pieces 16A, 16A, dust adhering to the bristles can be removed. Furthermore, even if the valleys 16b are not formed and the dust removal pieces 16A are connected in a straight blade member, the dust removal pieces can be brought into contact with the entire cleaning body while striking it, and this is also included in the present invention.

[0033] Figures 6(a) to 6(e) are side views showing the operation of the filter cleaning device of the second embodiment. The cleaning body 12 of the filter cleaning device 20 of the second embodiment is a rotating brush 9 having a rod-shaped shaft member 9a and a brush member 9b from which a plurality of bristles extend radially from the side surface of the shaft member 9a. The rotation direction of the rotating brush 9 is configured to rotate from bottom to top, approaching the dust removal member 6 from the filter body 1. This allows the dust removal section 6a to bite into the bristles of the brush member 9b that constitutes the rotating brush 9, thereby further improving the dust removal performance in removing dust X adhering to the rotating brush 9. The other configurations are the same as those of the filter cleaning device 10 of the first embodiment, so their explanation is omitted.

[0034] Furthermore, when the cleaning body 12 comes into contact with the dust removal section 6a from the tip side, the dust removal section 6a is configured to rotate away from the opening 3 so that the tip of the dust removal section 6a is lifted (see Figures 6(b) and 6(d)). This allows the dust removal section 6a to come into contact with the dust X adhering between the tip and base of the cleaning body 12, thereby improving the dust removal performance by removing the dust X adhering to the cleaning body 12. In addition, by rotating the dust removal section 6a away from the opening 3, the opening width through which the dust X passes can be widened, allowing the dust X to be efficiently transported to the opening 3.

[0035] Furthermore, the dust removal member 6 is configured such that when the cleaning body 12 contacts the dust removal section 6a from the base side, the tip of the dust removal section 6a rotates toward the opening surface 3c of the opening 3 (see Figures 6(c) and 6(d)). This reduces the resistance when the cleaning body 12 contacts the dust removal member 6 by rotating the dust removal section 6a toward away from the cleaning body 12. Also, since the cleaning body 12 contacts the dust removal section 6a from the base side toward the tip side, dust X adhering to the dust removal section 6a can be transferred to the opening 3. In addition, since the dust removal section 6a rotates toward closing the opening 3, the opening width through which the dust X passes can be narrowed, preventing the removed dust X from re-adhering to the cleaning body 12. Furthermore, the rotation direction of the rotating brush can assist the rotation of the dust removal member. When the dust removal member makes contact from the tip side, it rotates in a direction that lifts the tip of the dust removal member, and when the dust removal member makes contact from the base side, it rotates in a direction that brings the tip of the dust removal member closer to the opening surface of the opening.

[0036] Furthermore, in the initial state when the dust removal member 6 is not in contact with the cleaning body 12, the tip of the dust removal section 6a is inclined toward a direction away from the opening surface 3c of the opening 3 (see Figures 6(a) and 6(e)). This allows the dust removal section 6a to bite into the bristles of the cleaning body 12, thereby further improving the dust removal performance in removing dust X adhering to the cleaning body 12. In addition, because the tip of the dust removal section 6a is inclined, the dust removal member 6 can be rotated smoothly when it comes into contact with the cleaning body 12. [Industrial applicability]

[0037] The filter cleaning device according to the present invention is mainly used when installed in air conditioning units such as household air conditioners. [Explanation of symbols]

[0038] 1 filter 2, 12 Cleaning Units 3 aperture 3a, 3b opening edge 3c Opening surface 4 Dust exhaust member 5 Movable mechanism 5a Rotating belt or chain 5b Motor 6, 16 Dust removal component 6a, 16a Dust removal section 6A 6B, 16A Dust removal piece 6b Tanibe 7a, 7b Anti-rotation members 8 Dustbins 9 Rotating Brushes 9a Shaft member 9b Brush component 10, 20 Filter cleaning device 16b Wide valley 16th century Narrow valley 30 Air conditioners 31 Air conditioner unit 32 Inlet 33 Air outlet 34 Air passage 35 Heat exchanger 36 Blower 37 Opening and closing lid X Dust

Claims

1. A filter body that captures dust, A cleaning body that contacts the surface of the filter body to remove dust and debris, A dust discharge member is provided at one end of the filter body and has an opening for allowing dust transported by the cleaning body to pass through, A filter cleaning device having a movable mechanism that moves the cleaning body back and forth between one end and the other end of the filter body and transfers dust to the opening of the dust discharge member, The dust discharge member has a dust removal member near the opening that is rotatable while in contact with the cleaning body, The dust removal member has a dust removal section that scrapes off dust adhering to the cleaning body, and the tip of the dust removal section is formed to extend from one opening edge of the opening toward the other opening edge. When the cleaning body comes into contact with the tip of the dust removal section, the filter cleaning device rotates in a direction away from the opening so that the tip of the dust removal section is lifted.

2. When the cleaning body contacts the dust removal section from the base side, the tip of the dust removal section rotates in a direction toward the opening surface of the opening, according to claim 1 of the filter cleaning device.

3. The filter cleaning device according to claim 1, wherein two dust removal members are each arranged near the opposite edges of the opening.

4. The filter cleaning device according to any one of claims 1 to 3, wherein, in the initial state when the dust removal member is not in contact with the cleaning body, the tip of the dust removal portion is inclined toward a direction away from the opening surface of the opening.

5. The dust removal member has a plurality of dust removal pieces of two different lengths, and the dust removal pieces are formed alternately and continuously, according to any one of claims 1 to 3.

6. The cleaning body is a rotating brush having a rod-shaped shaft member and a brush member from which a plurality of bristles extend radially from the side surface of the shaft member, and the rotation direction of the rotating brush is from bottom to top, approaching the dust removal member from the filter body, according to any one of claims 1 to 3.

7. The dust removal member has a rotation-preventing member so that it can rotate up to approximately 90 degrees with respect to the opening surface of the opening, as described in any one of claims 1 to 3.

8. The dust discharge member is a filter cleaning device according to any one of claims 1 to 3, wherein a dust box for collecting dust that has passed through the opening is formed integrally or separately.

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