Range hood

Abstract

The utility model discloses a range hood which comprises a shell, an oil guide plate arranged in the shell, a fan arranged behind the oil guide plate and an oil cup arranged below the shell, and an air inlet is formed in the front side of the shell; the two oil cups are arranged side by side in the left-right direction, and a gap is formed between the two oil cups. The range hood further comprises an oil baffle plate arranged in front of the oil guide plate, the oil baffle plate is in contact with the oil guide plate, and the contact position corresponds to a gap between the two oil cups. Compared with the prior art, the oil cup has the advantages that the two-section type oil cup is arranged, the oil cup can be conveniently taken, placed and cleaned, the oil baffle is arranged on the front side of the oil guide plate, the oil baffle corresponds to the sealing between the two oil cups, and therefore waste oil can be prevented from dripping into a gap between the two oil cups from the outside of the oil guide plate, and the oil cup is prevented from being damaged. And waste oil can be collected by the oil cup.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an oil fume extractor. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Range hoods work based on the principle of fluid dynamics. A multi-blade centrifugal fan installed inside the range hood absorbs and exhausts oil smoke, and a filter is used to filter out some grease particles. The multi-blade centrifugal fan includes a volute, an impeller installed in the volute, and a motor that drives the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, sucking the oil smoke under the range hood into the fan, and after being accelerated by the fan, it is collected by the volute and guided to be discharged outdoors.

[0003] In existing range hoods, the oil cup is usually placed on the outside of the bottom of the casing, and in order to prevent oil leakage, the length of the oil cup is consistent with the overall length of the range hood, as disclosed in the Chinese patent application number 202021703692.3 of this application. However, this external long oil cup is too long to fit into the sink and is difficult to clean. In addition, the overly long oil cup has a large cleaning area, and the grease on the outer surface is also difficult to clean, causing trouble for cleaning; when the oil cup is removed for cleaning, it is easy to tip over, and the user needs to try to ensure that the height of the left and right sides is consistent, otherwise it will easily spill when pouring the oil, which is extremely inconvenient to operate. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a range hood in view of the deficiencies in the above-mentioned prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, comprising a shell, an oil guide plate arranged in the shell, a fan arranged behind the oil guide plate and an oil cup arranged under the shell, the front side of the shell forms an air inlet; the characteristics are:

[0006] There are two oil cups arranged side by side, with a gap between them.

[0007] The range hood further comprises an oil baffle plate arranged before the oil guide plate, wherein the oil baffle plate contacts the oil guide plate and the contact position corresponds to the gap between the two oil cups.

[0008] By setting up a two-stage oil cup, it is possible to facilitate the removal and cleaning of the oil cup, and an oil baffle is set on the front side of the oil guide plate, which corresponds to the closure between the two oil cups, thereby preventing waste oil from dripping from the outside of the oil guide plate into the gap between the two oil cups, ensuring that the waste oil can be collected by the oil cup.

[0009] Furthermore, to facilitate the setting of the oil baffle, the range hood also includes a smoke baffle that can open and close the air inlet and a lower panel arranged on the front side of the shell. When the smoke baffle is in a closed state, the lower panel is located below the smoke baffle, and the oil baffle is arranged on the lower panel.

[0010] Furthermore, the width of the upper end of the oil baffle plate is d1, the width of the lower end of the oil baffle plate is d2, and d1<d2 is satisfied, so that when the waste oil contacts the oil baffle plate from top to bottom, it can be diverted to the left and right sides.

[0011] Furthermore, the thickness of the upper end of the oil baffle plate is h1, the thickness of the lower end of the oil baffle plate is h2, and h1<h2. The lower end of the oil baffle plate contacts the oil guide plate, thereby ensuring the contact between the oil baffle plate and the oil guide plate and avoiding large-area contact that may cause the lower panel to be unable to close.

[0012] Preferably, to further ensure a suitable contact area, the angle between the rear side surface of the oil baffle and the horizontal direction is α, and the value range of α is 120° to 135°.

[0013] Furthermore, the shell includes a back plate located on the rear side, and the bottom of the back plate is bent forward to form a first bent portion, and a first bulge protruding upward is formed on the first bent portion, and the position of the first bulge corresponds to the gap between the two oil cups, and oil collecting grooves are formed on the first bent portion on the left and right sides of the first bulge, respectively. The first bent portion is provided with a first oil leakage hole at a position corresponding to the oil collecting groove, and the position of the first oil leakage hole corresponds to the top of the oil cup on the corresponding side, thereby allowing the waste oil flowing down along the inner cavity of the range hood to be guided into the two oil cups.

[0014] Furthermore, the bottom of the oil guide plate is bent backward to form a second bent portion, and a second convex bump protruding upward is formed on the second bent portion, and the position of the second convex bump corresponds to the gap between the two oil cups;

[0015] The first bending portion is located below the second bending portion, the first convex hump is at least partially located below the second convex hump to form an overlapping state, and the widths of the second convex hump and the first convex hump are both larger than the gap between the two oil cups, thereby allowing the waste oil flowing down the inner side of the oil guide plate to be guided into the two oil cups.

[0016] Furthermore, the second bent portion is provided with clearance holes on the left and right sides of the second convex bump, respectively. The clearance holes cooperate with the hooks of the oil cup. The clearance holes are flanged holes, thereby preventing oil leakage at the installation position of the oil cup.

[0017] Furthermore, the fan includes a volute, a second oil leakage hole is opened at the bottom of the volute, an oil collecting plate is arranged under the fan, the oil collecting plate is located above the first bending portion, and a third oil leakage hole is opened on the oil collecting plate, so that the waste oil flowing down the fan can be collected in the oil cup.

[0018] According to one aspect of the utility model, the oil collecting plate includes a diverter plate and an oil drain groove arranged front and back, the third oil leakage hole is located in the oil drain groove and has two third oil leakage holes arranged at intervals on the left and right, and each third oil leakage hole corresponds to the oil collecting groove on one side of the first convex bump;

[0019] The position of the diverter plate at the transition point with the oil drain groove and between the two third oil leakage holes is the lowest position, and the position of the second oil leakage hole of the volute corresponds to the diverter plate.

[0020] According to another aspect of the utility model, the oil collecting plate as a whole is concave from the periphery to the middle, and the third oil leakage hole is located at the lowest position of the oil collecting plate, and the third oil leakage hole corresponds to the left or right side of the first convex bump.

[0021] Compared with the prior art, the advantages of the utility model are: by setting a two-stage oil cup, it is convenient to take and place and clean the oil cup, and an oil baffle plate is set on the front side of the oil guide plate, and the oil baffle plate corresponds to the closure between the two oil cups, thereby preventing waste oil from dripping from the outside of the oil guide plate to the gap between the two oil cups, ensuring that the waste oil can be collected by the oil cup; by setting a convex bump and an oil collecting plate, the waste oil on the inside of the oil guide plate and flowing down the fan can be guided and collected into the oil cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the range hood in the closed state of the first embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the range hood in the first embodiment of the utility model with the lower panel in an open state;

[0024] Figure 3 It is a schematic diagram of a lower panel assembly and a hinge bracket of a range hood according to a first embodiment of the utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of the partial enlargement of Ⅰ;

[0026] Figure 5 It is a cross-sectional view of a range hood according to a first embodiment of the utility model;

[0027] Figure 6 for Figure 5 A partial II enlarged schematic diagram of

[0028] Figure 7It is a cross-sectional view of the range hood of the first embodiment of the utility model (with the oil collecting plate hidden);

[0029] Figure 8 for Figure 7 A partial III enlarged schematic diagram of

[0030] Fig. 9 It is a schematic diagram of a hidden smoke baffle and a lower panel assembly of a range hood according to a first embodiment of the utility model;

[0031] Fig.10 It is a schematic diagram of an oil collecting plate of a range hood according to a first embodiment of the utility model;

[0032] Fig.11 A cross-sectional view of a volute and an oil collecting plate of a fan of a range hood according to a first embodiment of the utility model;

[0033] Fig.12 It is a schematic diagram of an oil collecting plate of a range hood according to a first embodiment of the utility model;

[0034] Fig.13 for Fig.12 A partial enlarged schematic diagram of Ⅳ;

[0035] Fig.14 It is a schematic diagram of an oil collecting plate of a range hood according to a second embodiment of the utility model;

[0036] Fig.15 A cross-sectional view of a volute and an oil collecting plate of a fan of a range hood according to a second embodiment of the utility model;

[0037] Fig.16 This is a schematic diagram of an oil collecting plate and an oil cup of a range hood according to a second embodiment of the utility model. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0040] Embodiment 1

[0041] See also Figure 1 to Figure 4 , Fig. 9 A range hood is a side suction range hood, comprising a housing 1, an air inlet 11 is formed on the front side of the housing 1, and a smoke baffle 2 is provided on the front side of the housing 1 to open and close the air inlet 11. When the range hood is working, the smoke baffle 2 is opened to allow oil smoke to enter from the air inlet 11, and when the range hood is not working, the smoke baffle 2 is closed to prevent backflow of smoke and odor.

[0042] The front side of the housing 1 is also provided with a lower panel assembly, which includes a lower panel 31 located below the smoke baffle 2 and a connection structure for connecting with the housing 1. The lower panel 31 is arranged at the front side of the housing 1, can rotate relative to the housing 1, and can be opened and closed manually. To this end, a lower panel bracket 32 ​​is arranged on the side of the lower panel 31 facing the inside of the housing 1, and the connection structure includes a contact claw 33 and a hinge 34 arranged on the lower panel bracket 32, and the contact claw 33 is located above the hinge 34. A contact buckle 12 is arranged at a position corresponding to the contact claw 33 of the housing 1, so that the position of the lower panel 31 is fixed when it is closed through the snap-fitting of the contact buckle 12 and the contact claw 33, and it can be opened manually by force. The hinge 34 is used to make the lower panel 31 rotatably connected with the housing 1 at a position close to the lower end, and a hinge bracket 13 is arranged in the housing 1 at a position corresponding to the position of the hinge 34, and the hinge 34 and the hinge bracket 13 are rotatably connected, and the rotation axis of the hinge 34 extends in the left-right direction. Both the smoke baffle 2 and the lower panel 31 can be opened to facilitate the user to clean the interior of the range hood.

[0043] An oil cup 4 is arranged under the housing 1. There are two oil cups 4, which are arranged side by side on the left and right sides. The gap between the two oil cups 4 is H, and H is preferably 2-4 mm.

[0044] The housing 1 is also provided with an oil guide plate 5, which is located at the rear side of the smoke baffle plate 2 and the lower panel 31. The periphery of the oil guide plate 5 is connected to the corresponding wall surface of the housing 1. The smoke baffle plate 2 and the lower panel 31 are located at the front side of the oil guide plate 5. The oil guide plate 5 is concave from the periphery to the middle, forming a gradually shrinking cavity to guide the oil smoke to flow rapidly backward and enter the fan 6 arranged behind the oil guide plate 5. Figure 5 and Fig. 9 .

[0045] An oil baffle plate 7 is provided at the middle and lower end of the lower panel 31, and the position of the oil baffle plate 7 corresponds to the gap between the two oil cups 4. Figures 4 to 6 , the width (dimension in the left-right direction) of the upper end of the oil baffle plate 7 is d1, the thickness (dimension in the front-back direction) is h1, the width of the lower end of the oil baffle plate 7 is d2, the thickness is h2, and d1<d2, h1<h2. d2 is preferably 3 to 5 times H, such as 6 to 20 mm. When the lower panel 31 is closed, the angle between the rear side of the oil baffle plate 7 and the horizontal direction is α, and the value range of α is 120° to 135°.

[0046] By making d1<d2, the waste oil in the middle of the lower panel 31 can be smoothly diverted to the left and right sides when it contacts the oil baffle plate 7, avoiding flowing to the gap between the two oil cups 4. By making h1<h2, when the lower panel 31 is closed, the lower end of the oil baffle plate 7 can contact the oil guide plate 5, playing a role in blocking the oil droplets in the middle of the oil guide plate 5, preventing the oil droplets in the middle of the oil guide plate 5 from flowing to the gap between the two oil cups, and at the same time avoiding the large-area contact between the oil baffle plate 7 and the oil guide plate 5, which makes it difficult to close the lower panel 31.

[0047] The oil baffle plate 7 solves the problem of the oil path outside the oil guide plate 5. For the oil path inside, the oil droplets will flow down from the inside of the oil guide plate 5. Figure 5 , Figure 6 , Fig.12 and Fig.13 The shell 1 includes a back plate 14 located at the rear side, the bottom of the back plate 14 is bent forward to form a first bent portion 141, and a first convex bump 142 protruding upward is formed on the first bent portion 141. The first convex bump 142 is in a long strip shape and extends from front to rear. The position of the first convex bump 142 corresponds to the gap between the two oil cups 5.

[0048] The bottom of the oil guide plate 5 is bent backward to form a second bent portion 51, and a second convex bump 52 protruding upward is formed on the second bent portion 51. The second convex bump 52 is also in a long strip shape and extends from front to rear. The position of the second convex bump 52 corresponds to the gap between the two oil cups 5. The second bent portion 51 is provided with clearance holes 53 on the left and right sides of the second convex bump 52, respectively, for installing the hook 41 of the oil cup 4. The clearance hole 53 is a flanged hole, and the flange extends upward to prevent oil drops from dripping downward from the clearance hole 53.

[0049] The first bent portion 141 is located below the second bent portion 51 of the oil guide plate 5. The second convex hump 52 is at least partially located in front of the first convex hump 142, and the first convex hump 142 is partially located below the second convex hump 52 to form a partially overlapping state. The protrusion depth of the second convex hump 52 is greater than the protrusion depth of the first convex hump 142. The width B1 of the second convex hump 52 and the width B2 of the first convex hump 142 are greater than H, usually 5H, and the preferred value range of B1 and B2 is 10-20 mm, and B1 is preferably slightly greater than B2.

[0050] See also Figure 7 and Figure 8 The first bent portion 141 is located on the left and right sides of the first convex bump 142, and has concave oil collecting grooves 143 respectively formed thereon. The oil collecting grooves 143 may be in a long strip shape and extend in the left and right directions. The first bent portion 141 is provided with a first oil leakage hole 144 at a position corresponding to the oil collecting groove 143. The position of the first oil leakage hole 144 corresponds to the upper side of the oil cup 4 on the corresponding side. The waste oil flowing onto the second convex bump 52 will flow into the oil collecting grooves 14 on both sides through the first convex bump 142 and then be discharged into the oil cup 4 from the first oil leakage hole 144.

[0051] See also Figure 5 , Figure 6 , Figures 9 to 11 The fan 6 includes a volute 61, and a second oil leakage hole 611 is opened at the bottom of the volute 61. In order to receive the waste oil flowing down from the fan 6, an oil collecting plate 8 is arranged below the fan 6, and the oil collecting plate 8 is located above the second bending portion 51 and the first bending portion 141.

[0052] In this embodiment, the oil collecting plate 8 includes a diverter plate 81 and an oil drain groove 82 arranged front and back, wherein the diverter plate 81 is at the lowest position at the transition point with the oil drain groove 82, and the position of the second oil leakage hole 611 of the volute 61 corresponds to the diverter plate 81. Therefore, after the waste oil enters the diverter plate 81, it can enter the oil drain groove 82 along the diverter plate 81. Two third oil leakage holes 83 arranged at intervals on the left and right are provided on the oil collecting plate 8. The third oil leakage holes 83 are located in the oil drain groove 82. Each third oil leakage hole 83 corresponds to the oil collecting groove 143 on one side of the first convex bump 142, and the lowest position of the diverter plate 81 corresponds to between the two third oil leakage holes 83. In this way, the waste oil in the volute 61 is evenly divided, so that the left and right oil cups 4 can be full at the same time, which can extend the time for cleaning the waste oil.

[0053] Embodiment 2

[0054] See also Figure 14 to Figure 16 In this embodiment, the difference from the above-mentioned embodiment 1 is that the oil collecting plate 8 is in a shape that is concave from the periphery to the middle as a whole, and there is only one third oil leakage hole 83, which is located at the lowest position of the oil collecting plate 8. The third oil leakage hole 83 corresponds to the left or right side of the first convex bump 142, that is, the waste oil flowing downward from the oil collecting plate 8 will only flow into the oil collecting groove 143 on the left or right side, and thus be collected in one of the oil cups 4 on the left or right side. As a result, the oil cup 4 that does not collect the waste oil on this side can be left unturned for a long time, and only the oil cup 4 that collects the waste oil on this side can be turned over, and the number of oil cups to be cleaned is reduced (the main waste oil of the range hood comes from the volute 61 of the fan 6).

Claims

1. A range hood, comprising a housing (1), an oil guide plate (5) arranged in the housing (1), a fan (6) arranged behind the oil guide plate (5), and an oil cup (4) arranged below the housing (1), wherein an air inlet (11) is formed on the front side of the housing (1); characterized in that: The oil cups (4) are provided with two and are arranged side by side on the left and right sides, with a gap between the two oil cups (4); The range hood further comprises an oil baffle plate (7) arranged in front of the oil guide plate (5); the oil baffle plate (7) is in contact with the oil guide plate (5) and the contact position corresponds to the gap between the two oil cups (4).

2. The range hood according to claim 1, characterized in that: The range hood further comprises a smoke baffle (2) capable of opening and closing the air inlet (11) and a lower panel (31) arranged on the front side of the housing (1); when the smoke baffle (2) is in a closed state, the lower panel (31) is located below the smoke baffle (2), and the oil baffle (7) is arranged on the lower panel (31).

3. The range hood according to claim 2, characterized in that: The width of the upper end of the oil baffle plate (7) is d1, the width of the lower end of the oil baffle plate (7) is d2, and d1<d2 is satisfied.

4. The range hood according to claim 2, characterized in that: The thickness of the upper end of the oil baffle plate (7) is h1, the thickness of the lower end of the oil baffle plate (7) is h2, and h1<h2 is satisfied. The lower end of the oil baffle plate (7) is in contact with the oil guide plate (5).

5. The range hood according to claim 4, characterized in that: The angle between the rear side surface of the oil baffle plate (7) and the horizontal direction is α, and the value range of α is 120° to 135°.

6. The range hood according to claim 1, characterized in that: The shell (1) comprises a back plate (14) located at the rear side, the bottom of the back plate (14) is bent forward to form a first bent portion (141), a first convex bump (142) protruding upward is formed on the first bent portion (141), the position of the first convex bump (142) corresponds to the gap between the two oil cups (4), the first bent portion (141) is provided with an oil collecting groove (143) on the left and right sides of the first convex bump (142), the first bent portion (141) is provided with a first oil leakage hole (144) at a position corresponding to the oil collecting groove (143), and the position of the first oil leakage hole (144) corresponds to the upper side of the corresponding side oil cup (4).

7. The range hood according to claim 6, characterized in that: The bottom of the oil guide plate (5) is bent backward to form a second bent portion (51), a second convex bump (52) protruding upward is formed on the second bent portion (51), and the position of the second convex bump (52) corresponds to the gap between the two oil cups (4); The first bent portion (141) is located below the second bent portion (51), the first convex hump (142) is at least partially located below the second convex hump (52) to form an overlapping state, and the widths of the second convex hump (52) and the first convex hump (142) are both greater than the gap between the two oil cups (4).

8. The range hood according to claim 7, characterized in that: The second bent portion (51) is provided with clearance holes (53) on the left and right sides of the second convex bump (52), respectively. The clearance holes (53) cooperate with the hooks (41) of the oil cup (4), and the clearance holes (53) are flanged holes.

9. The range hood according to claim 6, characterized in that: The fan (6) comprises a volute (61), a second oil leakage hole (611) is provided at the bottom of the volute (61), an oil collecting plate (8) is provided below the fan (6), the oil collecting plate (8) is located above the first bending portion (141), and a third oil leakage hole (83) is provided on the oil collecting plate (8).

10. The range hood according to claim 9, characterized in that: The oil collecting plate (8) comprises a diverter plate (81) and an oil drain groove (82) arranged front and back, the third oil leakage holes (83) are located in the oil drain groove (82) and have two third oil leakage holes (83) arranged at intervals on the left and right, and each third oil leakage hole (83) corresponds to the oil collecting groove (143) on one side of the first convex bump (142); The position of the diverter plate (81) at the transition point with the oil drain groove (82) and between the two third oil leakage holes (83) is the lowest position, and the position of the second oil leakage hole (611) of the volute (61) corresponds to the diverter plate (81).

11. The range hood according to claim 9, characterized in that: The oil collecting plate (8) is in a shape that is concave from the periphery to the middle as a whole. The third oil leakage hole (83) is located at the lowest position of the oil collecting plate (8). The third oil leakage hole (83) corresponds to the left side or right side of the first convex bump (142).

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