KR20070009027A - Filter cleaning device for range hood - Google Patents

Abstract

A filter cleaning device of a range hood is provided to conveniently clean contaminated filters of the range hood without the need of separating the filters from the range hood. A filter cleaning device for a range hood includes a duct(2), a filter window, a cleaning tank(5), a filter body, and a pump. The filter window is installed in the front of the duct. The cleaning tank is disposed under the duct. The filter body provided with a filter is adhered to a front plate having the filter window or moved to the cleaning tank by a reciprocating apparatus. A plurality of nozzles installed at a pipe connected to a water supply pipe is disposed at an upper end of the cleaning tank toward the filter body. The pump supplies a cleaning agent into the cleaning tank. The filter body includes a rack gear and a pinion gear installed at both sides of the filter body. The pinion gear is installed at a bracket installed at the duct.

Description

Filter Cleaning Device for Range Hood {Filter Cleaning Device For Range Hood}

1 is a cross-sectional view showing a conventional stove hood installed in the kitchen

Figure 2 is a perspective view of the filter hood filter cleaning apparatus according to the present invention.

3 to 4 are perspective views of the main parts of the present invention.

5 is a front view in which a cover of the filter cleaning device according to the present invention is separated and a portion of an upper end of the cleaning tank is cut away;

6 to 8 is a partial view for explaining the main components of the present invention

9 is an enlarged partial view of a cover device and a main part;

10A is a perspective view of the cover with the cover open;

10B is a perspective view of the cover showing a closed state of the cover;

11 to 13 are state diagrams for explaining the filter cleaning process.

14 is a sectional view showing that a water flow generator is installed in the cleaning tank according to the present invention.

15 is a cross-sectional view of the range hood to which the filter cleaning device of the present invention is applied.

<Explanation of symbols for main parts of drawing>

2: duct 4: filter

5: cleaning tank 27: filter window

30: filter body 32: gear

33: rack gear 34: arc gear

37: pipe 38: nozzle

42: water supply pipe 51, 52: bracket

53: drive shaft 54: pinion gear

55: drive motor 56: upper guide

57: lower guide 59: guide roller

71: cover shaft 72: rope

73: wheel 74,74: fixed plate

77,79: detection lever 76,78: detection switch

80: cover motor 82: fluid

84: tension spring 87: pulley

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood, and more particularly, to a range filter filter cleaning device capable of automatically cleaning a contaminated filter while using a range hood.

Generally, in the kitchen, oil vapor, smell, heat, etc. generated during cooking are exhausted to the outside using a stove hood. The range hood consists of a filter, a blower, and a duct, where the filter is contaminated by use because it filters out oil and foreign matter contained in the contaminated air. This will be described with reference to the drawings.

1 is a cross-sectional view showing a conventional stove hood installed in the kitchen.

The stove hood (a) is composed of a collecting part (c), a filter (d), a front end duct (e), a blower (f), and a rear end duct (g) at a distance above the countertop (b). The rear end duct (g) is connected to the exhaust cap (i) installed on the outside of the). The stove hood (a) exhausts oil, smell, and the like generated from the countertop (b) by operating the blower (f), and at this time, the filter (d) filters out the oil and foreign substances, thereby filtering the filter ( d) is contaminated by coagulation of foreign objects and oil.

If the filter (d) is contaminated in this way, the through hole of the filter (d) is clogged with foreign matter, so even if the range hood is operated, the exhaust gas is not well ventilated and the kitchen or the house is contaminated with oil, odor and heat, and the surface of the filter (d) There is a problem with hygiene and falling behind on cooked food. Therefore, when the filter (d) is contaminated, it is very inconvenient to disassemble the filter (d) from the range hood (a) and replace it with a new one, or to clean the filter (d) and reassemble it.

In addition, if the polluted filter (d) is not properly cleaned or replaced in a timely manner, the filter (d) may be removed and the stove hood (a) may be operated. Since the inner surface is contaminated due to adhesion and adhesion, there is a costly problem to remove or replace it. In some cases, there is a problem that fires occur in the solidified oil in the duct, which threatens life and property.

The present invention is to eliminate the inconvenience of changing or cleaning the contaminated filter from the range hood as described above, to provide a filter hood filter cleaning device capable of automatically cleaning the contaminated filter in the range hood. There is this.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 is a perspective view of the filter hood filter cleaning apparatus according to the present invention.

The filter cleaning device (1) has a rectangular exhaust duct (2) having a discharge port upward of the body, the front plate (3) on the front side is formed with an inclined surface, the filter (4) is provided on the inside. A cleaning tank 5 is disposed below the body, and a front cover 6 is provided at the top of the cleaning tank 5, a cleaning liquid supply container 7 is provided at the bottom of the cleaning tank 5, The upper cover 8 and the lower cover 9 are disposed.

3A is a perspective view of an integrally provided duct and a cleaning tank. The front side of the duct is open and the fastening hole 10 necessary for installation at the top, the rear side and both sides of the duct (2) is provided with a cleaning tank (5) made by extending down. Fixtures 11 and 12 for fixing the upper cover 8 are provided at the upper and lower ends of the right side of the duct, and a fixture 13 for fixing the cleaner supply container 7 is disposed at the lower left side. There is more than one fastening hole is formed.

3B is a perspective view of the cleaning liquid supply container. The supply cylinder 7 is a rectangular sealed cylinder, and there are fixing holes 14 on the upper left and right sides thereof, and the cleaning liquid inlet 15 and the piping hole 16 are located on the right side of the upper surface.

Figure 3c is a perspective view of the top cover. The upper cover 8 has a space sized to accommodate a part attached to the right side of the duct 2, and the shape of the body extends laterally, and the lower part of the left side and the front is open. The fastening holes (11, 12) in the body is fixed to the fastening holes (17, 18) to the upper and lower portions of the upper cover (8), the piping hole 19 through which the washing water pipe is formed is formed in the middle, An incision 20 through which the drainage pipe is formed is formed at the bottom. On the other hand, the fixing fixture 21 to fix the cleaning liquid supply container (7) is fixed to the lower end of the right side, there is a fastening hole 22 to fix the front cover (6) on the left side of the middle, the lower cover (9) The support piece 23 which hangs) is provided.

3d is a perspective view of the lower cover. The lower cover 9 is sized and shaped to block an open portion at the front of the upper cover 8, and the lower cover 9 has a bottom plate 24 for blocking the inlet 15 of the cleaning liquid supply container 7, and the upper cover 8 is folded There is a chin 25. The lower cover 9 is supported by blocking the inlet 15 of the cleaning liquid supply container 7 with the bottom plate 24 while the upper cover 8 and the cleaning agent supply container 7 are assembled to the body, and then catching the locking step ( 25 is assembled by pushing the support piece 23 of the upper cover (8). Separation of the lower cover 9 is pulled apart from the support piece 23 by pulling the portion with the locking jaw 25 with a slight force is separated.

4A is a perspective view of the front plate. There is a fastening hole 10 required for installation at the top, there is a fastening hole 26 for installing in the duct 2 and a filter window 27 in which the filter 4 is located at the front.

Figure 4b is a perspective view of the inspection cover. The inspection cover 6 is for sealing an open space between the upper side of the cleaning tank 5 and the front plate 3 assembled to the duct 2, and for fixing the upper side of the cleaning tank 5 to the front side. There is a fastening hole 28, the right side there is a fastening hole 29 for fixing to the upper cover (8).

4C is a perspective view of the filter body. The filter body 30 is installed in a frame 31 in which the filter 4 has a size larger than that of the filter window 27, and gears 32 are provided at both sides of the frame 31, and the gear 32 is described above. ) Is composed of a linear rack gear 33 and the arc-shaped gear 34 of the shape of attaching a portion of the circular gear to the lower end. The pin lever 35 is attached to the upper end of the gear 32 disposed on the left side, and the plate lever 36 is provided at the end thereof.

5 is a front view of the upper cover, the lower cover and the front plate of the filter cleaning device according to the present invention are separated, and a portion of the upper end of the cleaning tank is cut away, and FIG. 6A is a side view of the upper and lower covers separated from each other, and FIG. A-A 'is a view seen from. FIG. 7A is a view from B-B 'of FIG. 5, FIG. 7B is a view from D of FIG. 7A, FIG. 8A is a view from C-C' from FIG. 5, and FIG. 8B is from E of FIG. 8A. This is the figure.

Pipe 37 has a plurality of nozzles (38) is installed on the upper end of the cleaning tank (5), the left end of the pipe 37 is sealed to the band (39) attached to the inside of the cleaning tank (5) It is fixed and the right side is piped to the water supply elbow 40 installed on the upper end of the cleaning tank (5), the solenoid valve 41 and the water supply pipe 42 is continuously piped to the water supply elbow (40). The water level detection switch 43 is installed inside the water supply elbow 40 of the upper end of the cleaning tank 5 is fixed. The overflow hole is fixed to the rear of the water level detection switch 43, the drain elbow 44 is fixed to the hole, the drain elbow 44 is the drain pipe 45 is piped. On the other hand, there is a drain hole on the right side of the lower part of the cleaning tank 5, and the drain valve 46 and the tee elbow 47 are connected to the hole, and the tee elbow 47 is the drain pipe 45. ).

The cleaning liquid supply container 5 has a pump 48 installed therein, and the cleaning liquid piping 49 has one end connected to the discharge port of the pump 48 and passing through the piping hole 16 at the top of the cleaning tank 5. Assembled in the holder 50 is installed toward the inside of the cleaning tank (5). And the cleaning liquid supply cylinder 7 is provided by the fixture 13 provided in the lower part of the cleaning tank 5, and the fixture 21 provided in the upper cover 8. In addition, in order to manage the flow rate of the cleaning liquid supply container 7 is provided with an observation hole in the cleaning liquid supply container (7) to visually manage or to install a water level detection switch to automatically detect.

The left and right brackets 51 and the right brackets 52 are fixed to the sides of the inner and upper ends of the cleaning tank 5, respectively. The drive shaft 53 is installed across the left and right brackets 51 and 52, and the pinion gear 54 is fixed close to the left and right brackets 51 and 52 of the drive shaft 53, respectively, The right side is installed to be linked to the drive motor 55 on the outside of the duct (2).

The left and right brackets 51 and 52 are provided with an upper guide 56 and a lower guide 57 below the pinion gear 54, and ends of each guide 56 and 57 have bent guide surfaces 58. have. Guide roller 59 is provided with a locking jaw (60) is installed to be rotated to the shaft (61) fixed to the front at intervals with the pinion gear (54). On the other hand, the outer diameter of the guide roller 59 is a size that is naturally matched with the inner diameter of the arc-shaped gear 34 of the gear 32 described above. Meanwhile, the lower detection switch 62 is attached to the upper end of the left bracket 51, and the recessed portion of the lever 63 is assembled to the guide 64 provided in the left bracket 51. The lever 63 is installed by pulling the tension spring 65 on the upper end of the lever 63 and the upper end of the left bracket 51. On the other hand, the lower portion of the lever 63 has an annular engaging portion 66 and the upper portion controls the falling detection switch 62 according to the flow of the lever 63.

In addition, the rotation detection switch 69 and the seating detection switch 70 are provided in the fixing part 68 located inside the upper left side of the duct 2 to detect the movement of the filter body 30.

9 is a partial view showing the main portion of the cover device, Figure 10a is a perspective view showing a state in which the cover is wound on the cover shaft, Figure 10b is a perspective view showing a state in which the cover is released from the cover shaft.

The cover shaft 71 has a wheel 73 for winding the rope 72 at both ends thereof, and is rotated by supporting the left fixing plate 74 and the right fixing plate 75, and the fixing plates 74 and 75 are ducts. 2) are installed on the inside left and right respectively. The right fixing plate 75 is provided with a cover closing detection switch 76, a closing lever 77, a cover opening detecting switch 78, and an opening lever 79, respectively, and the cover motor 80 has an outer side of the duct 2. It is arranged in to drive the cover shaft 71. Fixing fastening holes 81 are provided at upper and lower sides of the fixing plates 74 and 75, and the flow member 82 is interposed in the recess 83 provided at the lower portion of the fixing plates 74 and 75, and the tension spring 84 is fixed to the fixing plate 84. The fluid material 82 is supported in a downward direction by walking in the hole of the projection 85 of the 74 and 75 and the projection 86 of the fluid 82, and the pulley 87 is formed at the lower end of the fluid 82 in the shaft 88. It is installed to be pivoted on.

The cover 89 has a larger width and length than the filter window 27, one end of which is fixed to the cover shaft 71, and the other end of the cover 89 fixes the flow shaft 90, and the flow shaft 90 ) Is made longer than the width of the cover 89, and moves along the inclined surface up and down in the duct (2). The rope 72 secures one end to the wheel 73 provided on the cover shaft 71, then winds the wheel in the opposite direction in which the cover 89 is wound and covers the pulley 87 provided in the fluid 82. It is fixed to the flow shaft 90 provided in 89. At this time, the rope 72 and the cover 89 should be installed with a proper tension force between the cover shaft 71 and the pulley 87, the use and structurally generated loosening tension spring (pull the fluid 82) ( 84) to absorb.

On the other hand, the closing detection lever 7 is formed with a groove 91 through which the rope 72 passes, and a block 92 is fixed to one side of the rope 72 passing therethrough. In the drawing, reference numeral 93 denotes a spring, and the spring 93 returns to its original position after the closing lever 77 and the opening lever 79 are operated.

The filter body 30 assembles the gears 32 on both sides of the filter body 30 between the guide rollers 59 and the pinion gears 54 on the left and right to form the gear 32 and the pinion gear 54. Make sure that Here, the guide roller 59 makes the gear 32 and the pinion gear 54 achieve proper engagement, and the locking jaw 60 guides the filter body 30 not to be separated from side to side, and the arc-shaped gear guides the guide roller 59. ), The filter body 30 is rotated to be in close contact with the front plate (3). On the other hand, when the filter body 30 flows up and down, the upper guide 56 and the lower guide 57 guide the gear 32 so that the filter body 30 is upright.

A preferred embodiment of the filter cleaning operation of the present invention will be described with reference to the following drawings. (A) to (d) of FIG. 11 show that the filter body is immersed in the cleaning tank from B-B 'of FIG. 5, and (a) to (d) of FIG. 12 shows the filter body to the cleaning tank. It is seen from the C-C 'of FIG. 5 to be immersed, and FIG. 13 is a view showing that the washing water is sprayed through the cleaning nozzle from above.

Prior to the cleaning operation, the cleaning liquid supply container (7) must be filled with cleaning agent. In order to fill the cleaning liquid into the supply container 7, the lower cover 9 is opened, and the cleaning liquid inlet 15 at the upper end of the cleaning liquid supply container 7 is visible. Second, the washing water should be supplied at an appropriate pressure to the input side of the solenoid valve 41 through the water supply pipe (42).

The cleaning operation starts when both of the above conditions are met. When the cleaning switch is operated, the drive motor 55 moves in the forward direction to rotate the pinion gear 54. Then, when the filter body 30 rotates in the vertical direction about the guide roller 59 by the arc-shaped gear 34, the plate lever 36 provided in the left gear 32 operates the rotation detection switch 69. As a result, the driving motor 55 is stopped and the rotation of the filter body 30 is also stopped. The state at this time is also FIG. When the filter element 30 is stopped, the cover motor 80 drives the cover shaft 71 in the forward direction so that the wheel 73 winds the rope 72 and the cover 89 is released. Thus, the cover 89 moves toward the pulley 87 with the fluid 82 so that the filter window 27 is covered by the cover 89. When the cover 89 covers the filter window 27, the block 92 of the rope 72 is caught by the recess 91 of the closing lever 77 so that the closing detection switch 76 is operated to cover the cover motor 80. Is stopped.

After the cover 89 closes the filter window 27, the following process is performed. First, the detergent level detecting switch 43 senses the level of the washing tank 5 and if the quantity is insufficient, the solenoid valve 41 is opened to wash the washing water through the pipe 37 and the nozzle 38. Supplies). When the washing water is filled, the water level detecting switch 43 detects this and the circuit closes the solenoid valve 41 to complete the washing water supply. Second, the pump 48 in the cleaning liquid supply container 7 is operated to supply the cleaning liquid to the cleaning tank 5. The supply amount of the washing liquid may be determined in consideration of the characteristics of the washing water and the washing liquid supplied to the washing tank 5, and the supply amount may be adjusted by adjusting the operation time of the pump 48. When the third drive motor 55 is restarted and the filter body 30 is rotated, the gear 32 is guided to the upper guide 56, and at the same time, the pinion gear 54 is connected with the rack gear 33 of the gear 32. While meeting, the filter body 30 moves downward while maintaining the upright. The filter body 30 is immersed in the cleaning tank 5 while maintaining the upright with the guide of the upper guide 56 and the lower guide 57. Then, the lower detection switch 62 is operated by pulling down the lever 63 attached to the left bracket 51 by the pin lever 35 attached to the left gear 32, so that the driving motor 55 is stopped. That is, after the cover 89 closes the filter window 27, the supply of the washing water and the washing liquid to the washing tank 8, and the filter body 30 are moved to the washing tank 8 simultaneously.

When the filter body 30 is immersed in the cleaning tank 8, the cleaning agent formed by appropriately mixing the washing water and the cleaning liquid decomposes and separates contaminants such as oil and the like attached to the filter 4 from the filter. Thus, the filter body 30 must be immersed for a sufficient time for the cleaner to decompose the contaminants attached to the filter 4. When the time necessary for decomposing contaminants has elapsed, the drive motor 55 moves in the reverse direction and the filter body 30 is moved upward. Along with the movement, the solenoid valve 41 is opened, and the washing water is sprayed to the front surface of the filter 4 through the nozzle 38 to wash away the remaining cleaning agent and foreign matter, which is shown in FIG. At this time, the washing water introduced into the washing tank 5 is drained to the drain pipe 45 through the overflow hole. Here, the nozzle 38 should be disposed in consideration of the spray angle of the nozzle 38 so that the washing water is evenly sprayed on the front surface of the filter 4.

As the filter 4 washed with the washing water moves upward, the arc-shaped gear 34 of the gear 32 is engaged with the guide roller 59 so that the filter body 30 is the guide roller 59. Rotate the center to the front. Since the rotation of the filter body 30 is mechanically released from the lower guide 57 and the upper guide 56, it becomes natural. When the plate lever 36 of the gear 32 operates the rotation detection switch 69 by the rotation of the filter body 30, the drive motor 55 is stopped and the filter body 30 stops rotation. Then, the solenoid valve 41 for injecting the washing water is closed to stop the supply of the washing water, and the cover motor 80 is driven in the reverse direction. The cover shaft 71 then winds the cover 89 and the rope 72 wound around the wheel 73 releases the cover 89 to open the filter window 27. When the filter window 27 is opened in this manner, the cover motor 80 is stopped when the opening detection switch 78 is operated by operating the opening detection lever 79 by the flow shaft 90 installed at the end of the cover 89. When the cover motor 80 is stopped, the driving motor 55 is moved again to rotate the filter body 30 to be seated on the front plate 3 with the filter window 27. When the filter body 30 is seated, the seating detection switch 70 detects this and stops the driving motor 55 to complete the cleaning operation.

Although the filter 4 is described here as being washed once with washing water, it may be repeated several times if necessary. This is done by cleaning the filter body 30 while reciprocating the duct 2 and the cleaning tank 5 as many times as necessary, and this can be achieved by configuring the circuit accordingly.

As described above, when the cover 89 covers the filter window 27 while cleaning the filter 4, the inside is invisible, and the appearance is beautiful even during the cleaning operation, and at the same time, water droplets splash out while the water is sprayed from the nozzle 38. To prevent them.

After the cleaning is completed, the cleaning agent in the cleaning tank 5 may be used again for the next cleaning operation since the cleaning agent in the cleaning tank 5 is diluted by the supplied washing water to wash the filter 4. However, when the degree of contamination is severe or regular inspection, the drain valve 46 is opened to drain the remaining detergent in the cleaning tank 5. In addition, when the cleaning agent needs to be filled with a new one every time after the cleaning operation, the circuit may be configured to automatically drain by replacing the drain valve 46 installed in the drain pipe with a solenoid valve.

14 is a cross-sectional view showing a water flow generator is installed in the cleaning tank according to the present invention. The water flow generating vane 95 is installed long on the shaft 96 provided across the cleaning tank 5, and the shaft 96 is supported to be pivotally supported by the brackets 97 on both sides, and one end of the shaft 96 is provided. Is configured to be linked to the motor. When the filter 4 is immersed in the cleaning tank 8 to dissolve the contaminated material, when the blade 95 is rotated by the driving of the motor, the cleaning agent flows on the surface of the filter 4 to cause friction and the cleaning agent does not stagnate. Since it is circulated, it can wash effectively.

In the above-described embodiment, the water level is controlled by using the water level detection switch, but is not limited thereto. Therefore, the ball level may be used for the cleaning level management in the cleaning tank. It is possible to maintain a constant level of water in the cleaning tank by installing the balltop in a proper position in the cleaning tank and piping the water supply pipe. In the case of utilizing the balltop, the above-described water level detection switch and related circuits are unnecessary.

Fig. 15A is a cross-sectional view of the range hood to which the filter cleaning device of the present invention is applied to a small range hood used mainly at home, and Fig. 15B is a cross-sectional view of the range hood to which the filter cleaning device of the present invention is applied to a large range hood. The cleaning apparatus 1 connects the outlet of the duct 2 to the input duct 100 of the blower 101 in the stove hood and fixes it in an airtight manner using the fastening hole 10. When the blower blower 101 of the range hood is operated, the contaminated air collected in the collecting unit 102 is exhausted to the outside air via the blower 101 and the duct 103 via the filter 4. As shown in the figure, the filter cleaning device of the present invention applied to a large range hood has a discharge path of the duct disposed at the rear side. This means that the cleaning apparatus of the present invention is applied without any problem.

The operation cycle of the filter cleaning device according to the present invention may be configured to operate daily, weekly or monthly in consideration of the degree of contamination of the filter, or may be operated by pressing the operation switch once when necessary. This is possible by properly configuring the movable circuit.

The filter cleaning device of the present invention essentially solves the inconvenience of replacing or separating the conventional contaminated filter by automatically cleaning the contaminated filter. And since the cleaned filter is installed in the stove hood, when the stove hood is operated, contaminated air is immediately exhausted to maintain a comfortable kitchen and home environment. In addition, it prevents oil droplets or foreign substances condensed on the surface of the filter from falling into the countertop, so that the kitchen environment can be managed hygienically.

Claims (3)

In the stove hood, which is a kitchen exhaust system, a filter window is provided at the front of the duct, a cleaning tank is disposed at the lower part of the duct, and the filter body provided with the filter moves to a washing tank in close contact with the filter plate or a cleaning tank by a vortex device. And a plurality of nozzles installed in the pipe connected to the controlled water supply pipe are horizontally disposed on the upper side of the washing tank toward the flowing filter body and provided with a pump for supplying the cleaning liquid to the washing tank. . In the reciprocating device of the filter body according to claim 1, the gears provided on both sides of the filter body are made by combining a rack gear and an arc gear, and a drive shaft having pinion gears on both sides is installed in a bracket installed in a duct, and a guide roller Is placed in front of the pinion gear and assembled between the pinion gear and the guide roller so that the gear in the filter body meshes with the pinion gear, the upper guide and the lower guide are arranged above and below the pinion gear, and the driving motor is Range hood filter cleaning device, characterized in that it is installed to rotate. In moving the filter body to the duct and the cleaning tank according to claim 1, the cover is wound around a cover shaft provided near the filter window of the duct, and both sides of the cover shaft are provided with rope wheels and correspond to the rope wheels. The pulley is installed in the flow material, the flow material is assembled in the groove provided in the lower portion of the fixing plate and supported by the spring in the opposite direction of the cover shaft, the rope is fixed to the rope wheel for one end and then through the pulley flow shaft attached to the cover It is fixed to, one side of the fixing plate, the closing detection lever and the closing detection switch and the opening detection lever and the opening detection switch is provided to operate in accordance with the flow of the block provided in the rope, the cover motor is characterized in that installed to drive the cover shaft Filter hood cleaning device for stove hood.

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