Range hood

Abstract

This technology reduces the amount of oil fumes that adhere to the fan handle. [Solution] The baffle filter 400 is positioned between the fan and the intake port and has a box shape. The bottom plate 412 of the baffle filter 400 has a first inlet 420a and a second inlet 420b through which air drawn in from the intake port flows in, and an oil receiving section 430 for collecting oil contained in the air. The top plate 452 of the baffle filter 400 has a first outlet 460a and a second outlet 460b through which air flows out toward the fan. The first outlet 460a and the second outlet 460b open diagonally upward in the lower part of the handle.

Description

Technical Field

[0001] The present disclosure relates to a range hood.

Background Art

[0002] Range hoods incorporate a filter for collecting oil (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The filter is disposed below the fan. Therefore, oil fumes adhere to the handle of the fan. As a result, when the user grips the handle when removing the fan from the range hood, oil fumes also adhere to the user's hand.

[0005] [[ID=3,8]] The present disclosure has been made to solve the above problems, and an object thereof is to provide a technique for reducing oil fumes adhering to the handle of the fan.

Means for Solving the Problems

[0006] To solve the above problems, a range hood in one aspect of the present disclosure comprises a hood having an intake port on its lower surface and an exhaust port above the intake port, a fan disposed inside the hood and transporting air drawn in from the intake port to the exhaust port, and a box-shaped baffle filter disposed between the fan and the intake port. A handle is provided on the lower part of the fan for gripping when removing the fan from the hood, an inlet for air drawn in from the intake port and an oil receiving section for collecting oil contained in the air are provided on the bottom plate of the baffle filter, and an outlet for air to flow out toward the fan is provided on the top plate of the baffle filter, and the outlet opens diagonally upward on the lower part of the handle. [Effects of the Invention]

[0007] According to this disclosure, the amount of oil fumes adhering to the fan handle can be reduced. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the structure of the range hood according to this embodiment. [Figure 2] Figure 1 is an exploded perspective view showing the structure of the range hood. [Figure 3] This is a cross-sectional view showing the structure of a range hood for comparison. [Figure 4] Figure 1 is a cross-sectional view showing the structure of the range hood. [Figure 5] Figure 4 is a cross-sectional view showing the structure of the baffle filter. [Figure 6] Figure 5 is a perspective view showing the structure of the baffle filter. [Figure 7] Figure 6 is an exploded perspective view showing the structure of the baffle filter. [Figure 8] Figure 6 is an exploded perspective view showing the structure of the baffle filter. [Figure 9] Figures 9(a) and 9(b) are cross-sectional perspective views showing the structure of the baffle filter in Figure 6. [Figure 10] This is a cross-sectional view showing the structure of a modified baffle filter. [Figure 11] Figures 11(a)-(b) are cross-sectional perspective views showing the structure of a modified baffle filter. [Modes for carrying out the invention]

[0009] The embodiments for implementing this disclosure will be described below with reference to the attached drawings, in the following order: (1) the overall structure of the range hood, (2) the structure of a baffle filter for comparison, (3) the structure of the baffle filter according to this embodiment, and (4) modified examples of the baffle filter.

[0010] (1) Overall structure of the range hood Figure 1 is a perspective view showing the structure of range hood 1000. Figure 2 is an exploded perspective view showing the structure of range hood 1000. Both Figure 1 and Figure 2 are perspective views taken from below. A hood 100 is installed above kitchen appliances (not shown) such as stoves. The hood 100 is composed of a combination of an upper box shape and a lower plate shape. The hood 100 has a hollow structure and a plate-shaped rectifier plate 500 is connected to its lower surface. An intake port 110 is provided between the lower surface of the hood 100 and the rectifier plate 500. The intake port 110 draws in oil fumes, steam, or ambient air generated during cooking from kitchen appliances such as pots and pans into the hood 100.

[0011] A fan 200 is positioned inside the hood 100. The fan 200 is, for example, a centrifugal fan. In Figure 2, the blades 210 of the fan 200 are shown. The blades 210 are connected to a motor (not shown) via a shaft. The fan 200 transports air drawn in from the intake port 110 to the exhaust port (not shown) via a baffle filter 400. The exhaust port is positioned above the intake port 110 in the hood 100.

[0012] An annular orifice 300 is positioned below the fan 200. Below the orifice 300, that is, between the fan 200 and the intake port 110, a baffle filter 400 is positioned. The baffle filter 400 has a hollow box shape and causes the air drawn in from the intake port 110 to meander inside, extracting some of the oil contained in the oil fumes in the air.

[0013] (2) Structure of the baffle filter to be compared Before explaining the structure of the baffle filter 400 in Figure 1, we will first explain the structure of the conventionally used baffle filter 1400 for comparison. Figure 3 is a cross-sectional view showing the structure of the range hood 1100 for comparison. The range hood 1100 includes the hood 100, blades 210, motor 212, rotating shaft 214, handle 220, casing 230, rectifier plate 500, and baffle filter 1400. Here, the blades 210, motor 212, rotating shaft 214, handle 220, and casing 230 are included in the fan 200. Also, in order to clarify the comparison between the range hood 1100 and the range hood 1000, the structure of the range hood 1100 is the same as that of the range hood 1000 except for the baffle filter 1400. Therefore, Figure 3 can be said to correspond to the cross-sectional view along the line A-A' in Figure 1.

[0014] The motor 212 of the fan 200 is located in the upper part of the interior of the hood 100. A vertically extending rotating shaft 214 is located at the center of the motor 212. The rotating shaft 214 is the shaft of the motor 212, and the blade 210 and handle 220 are connected to the rotating shaft 214. The blade 210 and handle 220 are integrally constructed. When the motor 212 operates, the rotating shaft 214 rotates, causing the blade 210 to rotate around the rotating shaft 214. The handle 220 is located below the rotating shaft 214, and the handle 220 is grasped by the user when removing the blade 210 from the hood 100. A casing 230 is located around the blade 210. As the blade 210 rotates, air is drawn into the hood 100 from the intake port 110 located between the bottom surface of the hood 100 and the rectifier plate 500.

[0015] On the bottom plate of the baffle filter 1400 having a hollow box shape, there are provided a first inlet 1420a and a second inlet 1420b, which are collectively referred to as an inlet 1420, and an outlet 1460 is provided on the top plate of the baffle filter 1400. Both the inlet 1420 and the outlet 1460 are openings. The outlet 1460 is disposed at the central portion in the left - right direction, that is, below the handle 220, and the first inlet 1420a and the second inlet 1420b are provided outside the outlet 1460 in the left - right direction. The air sucked from the suction port 110 flows into the baffle filter 1400 from the first inlet 1420a or the second inlet 1420b. As the air meanders inside the baffle filter 1400, a part of the oil contained in the oil fume in the air is extracted by the baffle filter 1400. The air inside the baffle filter 1400 flows upward from the outlet 1460.

[0016] The air flowing out from the outlet 1460 contains oil fume. Therefore, the oil fume adheres to the handle 220. As described above, when the user grips the handle 220 when removing the blade 210 from the range hood 1100, the oil fume also adheres to the user's hand. Hereinafter, the structure of the baffle filter according to the present embodiment for reducing the oil fume adhering to the handle 220 of the fan 200 will be described.

[0017] (3) Structure of the baffle filter according to the present embodiment FIG. 4 is a cross - sectional view showing the structure of the range hood 1000. FIG. 4 is shown in the same manner as FIG. 3 and is a cross - sectional view taken along the line A - A' of FIG. 1. The hood 100, the suction port 110, the blade 210, the handle 220, the motor 212, the rotating shaft 214, the casing 230, and the rectifying plate 500 are the same as those in FIG. 3. As described above, the blade 210, the motor 212, the rotating shaft 214, the handle 220, and the casing 230 are included in the fan 200.

[0018] The baffle filter 400 has a hollow box shape and is positioned between the fan 200 and the intake port 110. Figure 5 is a cross-sectional view showing the structure of the baffle filter 400, and is an enlarged view of the baffle filter 400 shown in Figure 4. The baffle filter 400 is composed of a lower part 410 and an upper part 450. The lower part 410 has a box shape with an open top, and the upper part 450 has a lid shape that closes the opening of the lower part 410.

[0019] At both ends of the bottom plate 412 of the lower part 410, there are first inlets 420a and second inlets 420b, collectively referred to as inlets 420. The inlets 420 are openings that allow air drawn in from the intake port 110 to flow into the baffle filter 400. A dish-shaped oil receiving section 430 is positioned between the first inlet 420a and the second inlet 420b. The oil receiving section 430 collects oil contained in the oil mist in the air that flows into the baffle filter 400.

[0020] In the center of the top plate 452 of the upper part 450, the lower handle portion 402, which is located below the handle 220, is positioned. Outside the lower handle portion 402, the first guide 462a and the second guide 462b are positioned on either side of the lower handle portion 402. The first guide 462a and the second guide 462b are collectively referred to as guide 462.

[0021] Each guide 462 protrudes upward from the lower part of the handle 402 toward the outside of the top plate 452. The outer ends of the guides 462 are spaced apart from the upper part 450, and an exit 460 is provided between the guides 462 and the top plate 452. Specifically, a first exit 460a is provided between the outer end of the first guide 462a and the top plate 452, and a second exit 460b is provided between the outer end of the second guide 462b and the top plate 452. The exit 460 opens diagonally upward at the lower part of the handle 402 due to the guides 462.

[0022] A first protrusion 464 is provided at the base of the guide 462 on the lower part 402 of the top plate 452, projecting toward the internal space of the baffle filter 400. A second protrusion 466 is also provided between the first protrusion 464 of the top plate 452 and the base of each guide 462, projecting toward the internal space of the baffle filter 400. Furthermore, the top plate 452 is also provided with a protrusion 480 that projects toward the internal space of the baffle filter 400.

[0023] As the air flowing in from the inlet 420 moves through the internal space of the baffle filter 400 in a meandering manner toward the outlet 460, it collides with the first protrusion 464, the second protrusion 466, and the projection 480, causing the oil contained in the oil fumes in the air to fall off. The fallen oil is collected in the oil receiving section 430. As mentioned above, since the outlet 460 opens diagonally upward, the air flows out of the outlet 460 toward the blade 210 rather than the handle 220.

[0024] Multiple perforations 470 are provided on the top plate 452 in the portion outside the outlet 460. The opening area of ​​the perforations 470 is smaller than the opening area of ​​the outlet 460. Because the opening area of ​​the perforations 470 is small, the air inside the baffle filter 400 collides with the edges of the perforations 470 as it flows out, causing the oil contained in the oil fumes in the air to fall off. The fallen oil is collected in the oil receiving section 430.

[0025] The top plate 452 is also provided with a first side outlet 472a and a second side outlet 472b, collectively referred to as side outlets 472. The first side outlet 472a is located outside the top plate 452 beyond the first inlet 420a, and the second side outlet 472b is located outside the top plate 452 beyond the second inlet 420b. Since the air in the internal space of the baffle filter 400 also flows out from the side outlets 472, airflow is ensured.

[0026] Figure 6 is a perspective view showing the structure of the baffle filter 400. The cross-sectional view along the line B-B' in Figure 6 corresponds to Figure 5. The line B-B' in Figure 6 may be the same as the line A-A' in Figure 1. Figures 7 and 8 are exploded perspective views showing the structure of the baffle filter 400. These show the lower part 410 and upper part 450 of the baffle filter 400 in Figure 6 in an exploded view. Figure 7 is a perspective view of the baffle filter 400 seen from above, and Figure 8 is a perspective view of the baffle filter 400 seen from below. Furthermore, Figures 9(a) and 9(b) are cross-sectional perspective views showing the structure of the baffle filter 400. These are cross-sectional views along the line C-C' in Figure 6. Figure 9(a) is a perspective view of the baffle filter 400 seen from above, and Figure 9(b) is a perspective view of the baffle filter 400 seen from below.

[0027] In addition to the aforementioned first inlet 420a and second inlet 420b, the bottom plate 412 of the lower part 410 is also provided with a third inlet 420c and a fourth inlet 420d. The third inlet 420c and the fourth inlet 420d are also collectively referred to as inlets 420. The third inlet 420c and the fourth inlet 420d are positioned in a different direction from the first inlet 420a and the second inlet 420b, flanking the oil receiving section 430. Therefore, the oil receiving section 430 is surrounded by the four inlets 420.

[0028] In addition to the aforementioned first side outlet 472a and second side outlet 472b, the top plate 452 of the upper part 450 is also provided with a third side outlet 472c and a fourth side outlet 472d. The third side outlet 472c and the fourth side outlet 472d are also collectively referred to as side outlets 472. The third side outlet 472c and the fourth side outlet 472d are positioned in a different direction from the first side outlet 472a and the second side outlet 472b, flanking the first outlet 460a, the second outlet 460b, and the punching opening 470. Therefore, the first outlet 460a, the second outlet 460b, and the punching opening 470 are surrounded by the four side outlets 472. Furthermore, an oil collection projection 474 is provided surrounding the punching opening 470. Furthermore, the upper part 450 is provided with upper and lower fixing latches 490, and after the lower part 410 and the upper part 450 are superimposed, the lower part 410 and the upper part 450 are fixed together by the upper and lower fixing latches 490.

[0029] (4) Modified baffle filter The baffle filter 400 is not limited to the shapes described above. Figure 10 is a cross-sectional view showing the structure of the baffle filter 400. This is shown in the same way as in Figure 5. The baffle filter 400 is composed of a lower part 410 and an upper part 450. The lower part 410 has a box shape with an open top, and the upper part 450 has a lid shape that closes the opening of the lower part 410.

[0030] At both ends of the bottom plate 412 of the lower part 410, there are first inlets 420a and second inlets 420b, collectively referred to as inlets 420. The inlets 420 are openings that allow air drawn in from the intake port 110 to flow into the baffle filter 400. A dish-shaped oil receiving section 430 is positioned between the first inlet 420a and the second inlet 420b. The oil receiving section 430 collects oil contained in the oil mist in the air that flows into the baffle filter 400.

[0031] In the center of the top plate 452 of the upper part 450, the lower handle portion 402, which is located below the handle 220, is positioned. Outside the lower handle portion 402, the first guide 462a and the second guide 462b are positioned on either side of the lower handle portion 402. The first guide 462a and the second guide 462b are collectively referred to as guide 462.

[0032] Each guide 462 protrudes upward from the lower part of the handle 402 toward the outside of the top plate 452. The outer ends of the guides 462 are spaced apart from the upper part 450, and an exit 460 is provided between the guides 462 and the top plate 452. Specifically, a first exit 460a is provided between the outer end of the first guide 462a and the top plate 452, and a second exit 460b is provided between the outer end of the second guide 462b and the top plate 452. The exit 460 opens diagonally upward at the lower part of the handle 402 due to the guides 462.

[0033] The first guide 462a has a first downward-sloping portion 600 that slopes downward while facing outward at the first outlet 460a. The top plate 452 has a second downward-sloping portion 602 that slopes downward while facing outward, facing the first downward-sloping portion 600, with the first outlet 460a in between. Therefore, the first downward-sloping portion 600 and the second downward-sloping portion 602 are positioned on a part of the periphery of the first outlet 460a. The first downward-sloping portion 600 and the second downward-sloping portion 602 are provided so as to obstruct the airflow path inside the baffle filter 400.

[0034] The second guide 462b has a first downward-sloping portion 600 that slopes downward while facing outward at the second outlet 460b. The top plate 452 has a second downward-sloping portion 602 that slopes downward while facing outward, facing the first downward-sloping portion 600 across the second outlet 460b. Therefore, the first downward-sloping portion 600 and the second downward-sloping portion 602 are positioned on a part of the periphery of the second outlet 460b. The first downward-sloping portion 600 and the second downward-sloping portion 602 are provided so as to obstruct the airflow path inside the baffle filter 400.

[0035] A first protrusion 464 is provided at the base of the guide 462 in the lower part 402 of the top plate 452, projecting toward the internal space of the baffle filter 400. A second protrusion 466 is also provided between the first protrusion 464 of the top plate 452 and the base of each guide 462, projecting toward the internal space of the baffle filter 400. Furthermore, the top plate 452 is also provided with a protrusion 480 that projects toward the internal space of the baffle filter 400. Here, the downward protrusion length of the protrusion 480 is longer than the downward protrusion length of the protrusion 480 in Figure 5. On the other hand, the top plate 452 is not provided with the multiple punching openings 470 shown in Figure 5.

[0036] As the air flowing in from the inlet 420 moves through the internal space of the baffle filter 400 in a meandering manner toward the outlet 460, it collides with the first protrusion 464, the second protrusion 466, and the projection 480, dropping the oil contained in the oil fumes in the air. Furthermore, the air also collides with the first hanging portion 600 and the second hanging portion 602, dropping the oil contained in the oil fumes in the air. Here, because the punching opening 470 is not provided, the amount of air colliding with the first hanging portion 600 and the second hanging portion 602 increases, and therefore the amount of oil dropped also increases. The dropped oil is collected in the oil receiving portion 430. As mentioned above, since the outlet 460 opens diagonally upward, the air flows out of the outlet 460 toward the blade 210 rather than the handle 220.

[0037] The top plate 452 is also provided with a first side outlet 472a and a second side outlet 472b, collectively referred to as side outlets 472. The first side outlet 472a is located outside the top plate 452 beyond the first inlet 420a, and the second side outlet 472b is located outside the top plate 452 beyond the second inlet 420b. Since the air in the internal space of the baffle filter 400 also flows out from the side outlets 472, airflow is ensured.

[0038] Figures 11(a) and 11(b) are cross-sectional perspective views showing the structure of the baffle filter 400. Figures 11(a) and 11(b) are shown in the same manner as Figures 9(a) and 9(b). Figure 11(a) is a top-down perspective view of the baffle filter 400, and Figure 11(b) is a bottom-up perspective view of the baffle filter 400.

[0039] In this embodiment, the outlet 460 opens diagonally upward at the lower part 402 of the handle, allowing air to flow out in a manner that is offset from the handle 220, which is positioned above the outlet 460. Furthermore, because the air flows out in a manner that is offset from the handle 220, the amount of oil fumes adhering to the handle 220 of the fan 200 can be reduced. In addition, because the amount of oil fumes adhering to the handle 220 is reduced, the discomfort caused to the user can be alleviated. Furthermore, the guide 462 protrudes outward and upward from the lower part 402 of the handle, allowing the outlet 460 to open diagonally upward. Because the guide 462 protrudes outward and upward from the lower part 402 of the handle, the airflow can be altered by the guide 462.

[0040] Furthermore, since the first protrusion 464 protrudes toward the internal space of the baffle filter 400, it can remove oil contained in the oil fumes in the air. Furthermore, since the second protrusion 466 protrudes toward the internal space of the baffle filter 400, it can remove oil contained in the oil fumes in the air. Furthermore, since a small opening area punching opening 470 is provided, it can remove oil contained in the air. Furthermore, since the protrusion 480 protrudes toward the internal space of the baffle filter 400, it can remove oil contained in the oil fumes in the air. Furthermore, since a side outlet 472 is provided separately from the outlet 460, the amount of air that can flow out of the baffle filter 400 can be increased. Furthermore, since a first hanging portion 600 is provided at the outlet 460, it can remove oil contained in the air. Furthermore, since a second hanging portion 602 is provided at the outlet 460, it can remove oil contained in the air.

[0041] An overview of one aspect of this disclosure is as follows: (Item 1) A hood (100) having an intake port (110) on its lower surface and an exhaust port above the intake port (110), A fan (200) is positioned inside the hood (100) and transports the air drawn in from the intake port (110) to the exhaust port, The device comprises a baffle filter (400) having a box shape, which is positioned between the fan (200) and the intake port (110). A handle (220) is provided on the lower part of the fan (200) for gripping when removing the fan (200) from the hood (100). The bottom plate (412) of the baffle filter (400) is provided with an inlet (420) into which the air drawn in from the intake port (110) flows, and an oil receiving section (430) for collecting oil contained in the air. An outlet (460) is provided on the top plate (452) of the baffle filter (400) through which the air flows out toward the fan (200). The aforementioned outlet (460) is a range hood (1000) that opens diagonally upward at the lower part of the handle (220).

[0042] (Item 2) The top plate (452) has a guide (462) that protrudes upward from the lower part of the handle (220) toward the outside of the top plate (452), The range hood (1000) described in item 1, wherein the outlet (460) opens diagonally upward due to the guide (462).

[0043] (Item 3) The range hood (1000) according to item 2, wherein the top plate (452) further has a protrusion (464) at the base of the guide (462) in the lower part of the handle (220) that protrudes toward the internal space of the baffle filter (400).

[0044] (Item 4) The aforementioned protrusion (464) is the first protrusion (464), The range hood (1000) according to item 3, wherein the top plate (452) further has a second protrusion (466) between the first protrusion (464) and the base of the guide (462) that protrudes toward the internal space of the baffle filter (400).

[0045] (Item 5) The top plate (452) has a plurality of punching openings (470) in the portion of the top plate (452) that is outside the outlet (460), The range hood (1000) described in item 1, wherein the opening area of ​​the punching opening (470) is smaller than the opening area of ​​the outlet (460).

[0046] (Item 6) The range hood (1000) according to item 1, wherein the top plate (452) has a protruding portion (480) that protrudes toward the internal space of the baffle filter (400).

[0047] (Item 7) The range hood (1000) according to item 1, wherein the top plate (452) has a side outlet (472) that is outside the top plate (452) than the inlet (420) of the bottom plate (412).

[0048] (Item 8) The range hood (1000) according to item 2, wherein the guide (462) has a downward-sloping portion (600) at the outlet (460).

[0049] (Item 9) The aforementioned hanging portion (600) is the first hanging portion (600), The top plate (452) has a second hanging portion (602) that hangs down at the exit (460), The first hanging portion (600) and the second hanging portion (602) are opposite each other across the outlet (460) in the range hood (1000) described in item 8.

[0050] The present disclosure has been described above based on examples. These examples are illustrative, and it will be understood by those skilled in the art that various modifications are possible for each component or combination of processing steps, and that such modifications are also within the scope of the present disclosure. [Explanation of Symbols]

[0051] 100 Hood, 110 Intake, 200 Fan, 210 Blade, 212 Motor, 214 Rotating shaft, 220 Handle, 230 Casing, 300 Orifice, 400 Baffle filter, 402 Lower part of handle, 410 Bottom, 412 Bottom plate, 420 Inlet, 430 Oil tray, 450 Top, 452 Top plate, 460 Outlet, 462 Guide, 464 First protrusion, 466 Second protrusion, 470 Perforated opening, 472 Side outlet, 474 Oil collection protrusion, 480 Projection, 482 Fold-over, 490 Upper and lower fixing latch, 500 Rectifier plate, 600 First hanging part, 602 Second sagging section, 1000 Range hood.

Claims

1. A hood having an intake port on its lower surface and an exhaust port above the intake port, A fan is positioned inside the hood and transports the air drawn in from the intake port to the exhaust port, The system includes a baffle filter, which is positioned between the fan and the intake port and has a box-like shape, A handle is provided on the lower part of the fan for gripping when removing the fan from the hood. The bottom plate of the baffle filter is provided with an inlet through which the air drawn in from the intake port flows in, and an oil receiving section for collecting oil contained in the air. The top plate of the baffle filter has an outlet through which the air flows out toward the fan. The aforementioned outlet is a range hood that opens diagonally upward at the lower part of the handle.

2. The top plate has a guide that protrudes upward from the lower part of the handle towards the outside of the top plate, The range hood according to claim 1, wherein the outlet opens diagonally upward due to the guide.

3. The range hood according to claim 2, wherein the top plate further has a protrusion at the base of the guide in the lower part of the handle that protrudes toward the internal space of the baffle filter.

4. The aforementioned protrusion is the first protrusion, The range hood according to claim 3, wherein the top plate further has a second protrusion between the first protrusion and the base of the guide that protrudes toward the internal space of the baffle filter.

5. The top plate has a plurality of punching openings in the portion of the top plate that is outside the exit, The range hood according to claim 1, wherein the opening area of ​​the punching opening is smaller than the opening area of ​​the outlet.

6. The range hood according to claim 1, wherein the top plate has a protruding portion that protrudes toward the internal space of the baffle filter.

7. The range hood according to claim 1, wherein the top plate has a side outlet that is outside the top plate and is further outside the inlet of the bottom plate.

8. The range hood according to claim 2, wherein the guide has a downward-sloping portion that descends at the outlet.

9. The aforementioned hanging portion is the first hanging portion, The top plate has a second hanging portion that slopes down at the exit, The range hood according to claim 8, wherein the first hanging portion and the second hanging portion face each other with the outlet in between.

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