Range hood

Abstract

The present application provides a kind of range hood, comprising: lower shell, including vertical part and horizontal part, the vertical part is equipped with air inlet;Upper shell is installed on the horizontal part and is equipped with air outlet, fan is equipped in the upper shell;Flow guide piece is arranged in the horizontal part and is inclined relative to horizontal plane, the upper shell and the air inlet are communicated by the flow guide piece, and the upper shell, the flow guide piece and the air inlet define the airflow channel for the flow of flue gas.The range hood provided by the present application can reduce the flow path of oil fume, so as to improve the exhaust efficiency of oil fume, and improve the side suction effect of range hood.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliances technology, and more particularly to range hoods. Background Technology

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is installed in the kitchen above the stove and can quickly remove the harmful fumes produced during cooking to reduce pollution and purify the air.

[0003] Currently, range hoods include top-mounted and side-mounted types. Some side-mounted range hoods consist of a roughly inverted L-shaped body, a smoke collection hood, and a fan. The smoke collection hood is located above and connected to the body, while the fan is located inside the hood. Kitchen fumes, driven by the fan, enter the smoke collection hood through the air inlet. Inside the hood, oil and gas are separated, and the gas is discharged from the outlet, while the separated oil falls into the oil collection tank within the body.

[0004] However, the air inlet of existing side-suction range hoods with inverted L-shaped bodies is located on the side of the body, while the fan is located directly above the body. This results in a longer path for the fumes to flow inside the body, which affects the range hood's extraction efficiency. Summary of the Invention

[0005] This invention provides a range hood that addresses the problem of long flow paths of cooking fumes within the body of existing range hoods, which affects the range hood's extraction efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] One aspect of this invention provides a range hood, comprising: a vertical portion and a horizontal portion, the vertical portion having an air inlet; an upper housing mounted on the horizontal portion and having an air outlet, the upper housing having a fan inside; and a flow guide disposed within the horizontal portion and inclined relative to the horizontal plane, the upper housing and the air inlet being connected through the flow guide, and the upper housing, the flow guide, and the air inlet defining an airflow channel for supplying flue gas.

[0008] The range hood provided by this invention, by setting an inclined guide in the horizontal part of the lower shell, and defining the airflow channel by the guide, the upper shell and the vertical part, allows the fumes to enter the vertical part from the air inlet, flow into the upper shell through the guide and then flow out from the air outlet, thereby reducing the flow path of the fumes and improving the exhaust efficiency of the fumes, which is beneficial to improving the side suction effect of the range hood.

[0009] In addition, due to the tilt of the guide, the oil separated from the condensation of the upper shell can flow more easily to the vertical part along the tilt slope of the guide.

[0010] In one possible implementation, the lower end of the vertical portion is provided with an oil collection groove communicating with the vertical portion, and the rear end of the guide extends at least partially into the vertical portion and is directly opposite the oil collection groove.

[0011] With the above solution, the oil in the guide flows from the lower end of the guide to the vertical part. By extending the lower end of the guide into the vertical part, the oil flowing down the guide will not touch the inner wall of the vertical part, which helps to maintain the cleanliness of the internal space of the lower housing.

[0012] In one possible implementation, the oil collection tank has an upward-facing opening, and the interior of the oil collection tank is provided with a support frame for supporting the lower end of the lower housing, such that there is a gap between the lower end of the lower housing and the bottom wall of the oil collection tank.

[0013] With the above design, the oil flowing down from the guide member falls into the interior of the vertical section and then enters the oil collection tank through the upper opening. A support frame is installed to create a gap between the lower end of the lower housing and the bottom wall of the oil collection tank, facilitating the collection and storage of the falling oil.

[0014] In one possible implementation, the guide includes a base plate and two opposing sidewalls connected to the base plate, the sidewalls extending upward and forming an oil outlet channel with the base plate, the oil outlet channel communicating with the vertical portion.

[0015] With the above solution, the oil on the base plate is guided through the oil outlet channel before flowing into the vertical part, so that the oil in the guide can be controlled to enter the vertical part and avoid uncertain oil flow.

[0016] In one possible implementation, the guide further includes a baffle connected to the base plate, the baffle being located between the two side walls and having a height lower than the side walls, and the baffle having an oil outlet.

[0017] Through the above scheme, the baffle can form a barrier between the bottom plate and the vertical part to intercept and store the separated oil, so as to prevent the oil in the guide from flowing into the vertical part too quickly and in large quantities, and to prevent the large amount of downward flowing oil from colliding with the upward flowing flue gas.

[0018] In one possible implementation, the guide member is directly opposite the fan, and a seal is provided between the outer wall of the guide member and the inner wall of the horizontal portion.

[0019] With the above solution, the gas entering the guide component is directly opposite the fan, which can reduce the flow path of the flue gas and improve exhaust efficiency. For the sake of overall weight distribution of the range hood, the fan is generally located in the middle of the upper casing. To ensure that all the flue gas in the vertical section enters the guide component, a seal is needed to seal the outer side of the guide component from the horizontal section.

[0020] In one possible implementation, the front surface of the vertical and / or horizontal portion is provided with tempered glass.

[0021] With the above design, the front end of the lower housing faces the user and the cooktop. When the range hood is working, some of the fumes generated at the cooktop are sucked in, while some fumes do not enter the range hood, causing the oil from these fumes to stick to the front end of the lower housing. When the front end of the lower housing is made of tempered glass, the user can more easily remove the oil from the tempered glass surface, making it easier to clean the range hood.

[0022] In one possible implementation, the air inlet can be opened and closed.

[0023] With the above solution, the air inlet is closed when the range hood is not in use, so as to prevent dust and other impurities from entering the lower housing.

[0024] When the range hood is working, the first panel can move away from the second panel, so that the gap between the first and second panels forms an air inlet. When the range hood is not working, the first panel can move closer to the second panel, so that the first and second panels come into contact.

[0025] In one possible implementation, the front end of the vertical section is provided with a first panel and a second panel arranged side by side. The first panel can move away from the second panel so that the air inlet is formed between the first panel and the second panel. The first panel can move toward the second panel so that the first panel and the second panel abut against each other.

[0026] The first panel is located below the second panel. The rear end of the vertical portion is provided with a first back plate and a second back plate stacked together. The first back plate is located in front of the second back plate and is connected to the first panel. The second back plate is provided with a driving member, which is used to drive the first back plate to move up and down.

[0027] With the above design, when the range hood is working, the first panel can move away from the second panel, so that the gap between the first and second panels forms an air inlet. When the range hood is not working, the first panel can move closer to the second panel, so that the first and second panels come into contact, thereby closing the air inlet.

[0028] Additionally, during range hood installation, the second back panel located at the rear can be mounted on the wall. When it is necessary to open the air inlet, the drive unit can drive the first back panel downwards, thereby causing the first panel connected to the first back panel to move downwards, thus moving the first panel away from the second panel.

[0029] In one possible implementation, the inner wall of the lower housing is provided with a slide rail, and the first back plate is provided with a slider, which slides on the slide rail.

[0030] The above scheme ensures the smooth movement of the first back plate by coordinating the slider and the slide rail.

[0031] In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1 This is a schematic diagram of an existing range hood;

[0034] Figure 2 A schematic diagram of a range hood with its air inlet closed, provided as an embodiment of the present invention;

[0035] Figure 3 for Figure 2 The diagram shown illustrates the range hood with the air inlet open.

[0036] Figure 4 for Figure 3 The image shows a front view of the range hood;

[0037] Figure 5 for Figure 4 The image shown is a cross-sectional view of the range hood at point XX;

[0038] Figure 6 for Figure 3 The exploded view of the range hood shown;

[0039] Figure 7 for Figure 3 The left view of the range hood shown;

[0040] Figure 8 for Figure 7 The image shows a partial cross-sectional view of the range hood at point YY;

[0041] Figure 9 for Figure 8 A three-dimensional schematic diagram of the third connecting plate is shown;

[0042] Figure 10 for Figure 6 An exploded view of the connection between the first panel and the first back panel is shown.

[0043] Figure 11 for Figure 6 A schematic diagram of the flow guide is shown;

[0044] Figure 12 for Figure 7 The image shows a partial cross-sectional view of the range hood at point ZZ.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1-Lower shell;

[0047] 11-Vertical section; 111-Air inlet; 112-First panel; 113-Second panel; 114-First back panel; 115-Second back panel; 116-Slide rail; 117-Slider;

[0048] 12 - Horizontal section; 121 - Third panel; 122 - Fourth panel;

[0049] 2-Upper casing; 21-Fan; 22-First part; 23-Second part;

[0050] 3-Flow guide; 31-Base plate; 32-Side wall; 33-Oil outlet; 34-Baffle wall;

[0051] 4-Oil collection tank;

[0052] 5-Seals;

[0053] 6-Drive components;

[0054] 7-Support frame;

[0055] 81-First connecting plate; 811-Third folding plate; 82-Second connecting plate; 83-Third connecting plate; 831-Lower section; 832-Upper section; 833-First folding plate; 834-Second folding plate; 84-Fourth connecting plate; 851-First flange; 852-Second flange; 853-Third flange; 854-Fourth flange; 86-Reinforcing member;

[0056] 91 - First section; 92 - Second section; 93 - Oil outlet;

[0057] 101-Body; 102-Air inlet; 103-Fog hood; 104-Fan; 105-Air outlet; 106-Oil collection tank; 107-Front end.

[0058] The accompanying drawings have illustrated specific embodiments of the invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0060] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0061] Figure 1 A schematic diagram of an existing range hood, such as... Figure 1 As shown, the existing range hood includes a body 101 with an air inlet 102, a smoke collection hood 103, and a fan 104. The body 101 is inverted L-shaped, and the smoke collection hood 103 is located above and connected to the body 101. The smoke collection hood 103 has an air outlet 105, and the fan 104 is located inside the smoke collection hood 103. Kitchen fumes, driven by the fan 104, enter the smoke collection hood 103 through the air inlet 102 and the body 101. After oil-gas separation within the smoke collection hood 103, the gas is discharged from the air outlet 105, and the separated oil falls into the oil collection tank 106 of the body 101.

[0062] However, Figure 1 The arrows in the diagram indicate the direction of gas flow. Continue to refer to... Figure 1 As can be seen, in existing range hoods, the air inlet 102 is located on the side of the body 101, and the fan 104 is located directly above the body 101. The fumes flow vertically upwards first within the body 101, then horizontally, and finally upwards through the fume collection hood 103 before exiting. Therefore, the flow path of the fumes drawn into the range hood is relatively long, affecting the range hood's extraction efficiency.

[0063] Furthermore, in the layout design of range hoods, the frontmost part 107 of the body 101 is often equipped with a control panel. The control panel can have operation buttons for turning on / off, adjusting lighting, and adjusting the suction volume, so that users can operate the range hood through multiple different buttons. Therefore, the frontmost part 107 of the body 101 has a certain height in the vertical direction, which inevitably increases the gas flow path.

[0064] In view of this, the range hood provided by the present invention can reduce the flow path of gas and improve the exhaust efficiency of oil fumes by setting a flow guide, which is beneficial to improving the side suction effect of the range hood.

[0065] The range hood of the present invention will now be described in detail with reference to the accompanying drawings.

[0066] For ease of description, in this embodiment, the direction pointed to by arrow A in the attached figure is the front side of the range hood, and the other side is the rear side of the range hood; the direction pointed to by arrow B in the attached figure is the left side of the range hood, and the other side is the right side of the range hood; the direction pointed to by arrow C in the attached figure is the top side of the range hood, and the other side is the bottom side of the range hood.

[0067] Figure 2 A schematic diagram of a range hood with the air inlet 111 closed, provided as an embodiment of the present invention. Figure 3 for Figure 2 The diagram shown illustrates the range hood when the air inlet 111 is open. Figure 2 and Figure 3 As shown, a range hood includes a lower housing 1 and an upper housing 2. The lower housing 1 includes a vertical portion 11 and a horizontal portion 12 communicating with the vertical portion 11, and the vertical portion has an air inlet 111. The upper housing 2 has an air outlet, and the lower end of the upper housing 2 communicates with the upper end of the horizontal portion 12. A fan 21 is installed inside the upper housing 2.

[0068] Figure 4 for Figure 3 The image shown is a front view of the range hood. Figure 5 for Figure 4 The sectional view of the range hood shown is at point XX, as follows: Figures 3-5 As shown, the range hood also includes a guide member 3, which is disposed within the horizontal portion 12 and inclined relative to the horizontal plane. The upper housing 2 and the vertical portion 11 are connected through the guide member 3, and the upper housing 2, the guide member 3, and the vertical portion 11 define an airflow channel for the flow of smoke.

[0069] Figure 5 The hollow arrows in the diagram indicate the direction of flue gas flow. Figure 1 and Figure 5 In comparison, the flow path of the flue gas is basically the same within the vertical section 11. In the prior art, when entering the horizontal section 12 from the vertical section 11, the flue gas moves not only horizontally but also vertically. However, in this invention, the flue gas is guided by the guide member 3 after entering the horizontal section 12 and moves along the inclined direction of the guide member 3. Compared to the flow path of flue gas in existing range hoods, the flow path of the flue gas within the lower housing 1 of the range hood in this invention is significantly shortened.

[0070] In summary, the range hood provided by the present invention, by setting an inclined guide 3 in the horizontal portion 12 of the lower housing 1, and defining the airflow channel by the guide 3, the upper housing 2 and the vertical portion 11, allows the fumes to enter the vertical portion 11 from the air inlet 111, flow into the upper housing 2 through the guide 3 and then flow out from the air outlet, thereby reducing the flow path of the fumes and improving the exhaust efficiency of the fumes, which is beneficial to improving the side suction effect of the range hood.

[0071] The following describes the various parts of the range hood provided by this invention in sequence according to the flow path of the flue gas within the range hood.

[0072] First, let's describe the vertical part 11.

[0073] Depend on Figure 2 and Figure 3 It can be seen that the vertical part 11 is provided with an air inlet 111, which can be opened when the range hood is being used to draw in oil fumes, so that the fumes can enter the vertical part 11 from the air inlet 111. The air inlet 111 can also be closed when the range hood is not working, so as to prevent dust and other impurities from entering the lower housing 1.

[0074] Optionally, in order to enable the air inlet 111 to have both open and closed states, a first panel 112 and a second panel 113 may be arranged side by side at the front end of the vertical portion 11. The first panel 112 and the second panel 113 may move away from or towards each other, or one of the first panel 112 and the second panel 113 may move away from or towards the other to open or close the air inlet 111.

[0075] For example, Figure 2 and Figure 3 In this configuration, the first panel 112 can move away from the second panel 113, forming an air inlet 111 between them, which is then opened. Alternatively, the first panel 112 can move towards the second panel 113, bringing them into contact and closing the air inlet 111. In other words, the second panel 113 can remain stationary, and the opening and closing of the air inlet 111 is achieved solely through the movement of the first panel 112.

[0076] The first panel 112 can move vertically, horizontally, or diagonally relative to the second panel 113. "Diagonal" refers to a direction whose angle with the vertical is between 0 and 90 degrees (excluding 0 and 90 degrees). For example, Figure 2 and Figure 3 In the example shown, the first panel 112 is located below the second panel 113, and the second panel 113 moves downward to move away from the second panel 113, while the second panel 113 moves upward to move closer to the second panel 113.

[0077] The following is based on Figure 2 and Figure 3 The following example illustrates how the first panel 112 moves relative to the second panel 113. Other movement methods for the first panel 112 and the second panel 113 will be explained below and will not be elaborated upon here.

[0078] Figure 6 for Figure 3 The exploded view of the range hood shown is as follows: Figure 3 and Figure 6 As shown, the rear end of the vertical portion 11 is provided with a first back plate 114 and a second back plate 115 stacked together. The first back plate 114 is located in front of the second back plate 115 and is connected to the rear end face of the first panel 112. The second back plate 115 is provided with a driving member 6, which is used to drive the first back plate 114 to move up and down.

[0079] It should be noted that during range hood installation, the second back panel 115 located at the rear can be mounted on the wall. When the air inlet 111 needs to be opened, the drive unit 6 can drive the first back panel 114 downward, thereby causing the first panel 112 connected to the first back panel 114 to move downward, thus moving the first panel 112 away from the second panel 113. When the first panel 112 moves to its farthest position, the air inlet 111 is in its most open state. When the air inlet 111 needs to be closed, the drive unit 6 can drive the first back panel 114 upward, thereby causing the first panel 112 connected to the first back panel 114 to move upward, thus moving the first panel 112 toward the second panel 113. When the upper end surface of the first panel 112 abuts against the lower end surface of the second panel 113, the air inlet 111 closes.

[0080] In addition, the above-mentioned "the second back plate 115 is provided with a driving member 6, which is used to drive the first back plate 114 to move up and down" means that the fixed part of the driving member 6 is fixedly installed on the second back plate 115, and the movable part of the driving member 6 is fixedly installed on the first back plate 114. The driving part can move relative to the fixed part to drive the first back plate 114 to move relative to the second back plate 115.

[0081] The drive unit 6 can be electrically connected to an external power source or a battery. The drive unit 6 can be a linear motor, a rotary motor with a conversion mechanism, or a cylinder, etc., used as a drive source to drive the first back plate 114 to perform branch line motion. The speed at which the air inlet 111 opens and the size of the opening can be controlled by the control system of the drive unit 6, which will not be described in detail here.

[0082] In addition, the inner wall of the lower housing 1 may be provided with a slide rail 116, and the first back plate 114 is provided with a slider 117, which slides on the slide rail 116. The cooperation between the slider 117 and the slide rail 116 facilitates the stable movement of the first back plate 114.

[0083] Figure 7 for Figure 3 The left view of the range hood shown is shown. Figure 8 for Figure 7 The diagram shows a partial cross-sectional view of the range hood at point YY. Figure 9 for Figure 8 The three-dimensional schematic diagram of the third connecting plate 83 shown is as follows: Figures 6-9 As shown, the second panel 113 and the second back panel 115 are connected by a third connecting plate 83. The third connecting plate 83 includes an inverted L-shaped third plate body, which includes a lower section 831 and an upper section 832 connected to the lower section 831. The lower section 831 extends vertically upward, and the upper section 832 is bent relative to the upper section 832 and extends horizontally forward.

[0084] It should be noted that, Figure 9 This shows the structure of the third connecting plate 83 on the left side of the range hood. Since the range hood is symmetrical, the structures of the third connecting plates 83 on both the left and right sides are identical. Continuing... Figure 8 and Figure 9 As shown, the rear side of the lower section 831 of the third connecting plate 83 is bent to form a first flange 851, which is connected to the second back plate 115. The front side of the lower section 831 of the third connecting plate 83 is bent to form a first folded plate 833, which extends along the length of the second panel 113. The end of the first folded plate 833 away from the lower section 831 is bent to form a second flange 852, which has an L-shaped cross-section.

[0085] Optionally, such as Figure 8As shown, a fourth connector connects the first flange 851 and the second flange 852, which improves the structural strength of the third connecting plate 83. Exemplarily, the fourth connector has connecting sections at its front and rear ends. The front connecting section connects to the second flange 852, and the rear connecting section connects to the first flange 851. An installation section is provided between the two connecting sections, and the aforementioned slide rail 116 can be mounted on the installation section. A slider 117 can be embedded in the slide rail 116, and the other side of the slider 117 can be connected to the first back plate 114. Both the left and right ends of the first back plate 114 slide relative to the third connecting plate 83, which helps improve the sliding synchronization of the left and right ends of the first back plate 114. Thus, the fourth connector also provides mounting positions for the aforementioned slide rail 116 and slider 117. Of course, in addition to the above-mentioned configuration, the slide rail 116 can also be mounted on the second back plate 115; this is merely an example and not a specific limitation.

[0086] Figure 10 for Figure 6 An exploded view of the portion where the first panel 112 connects to the first back panel 114 is shown, as follows: Figure 10 As shown, optionally, the first back plate 114 may include a first segment 91 and a second segment 92 connected to the first segment 91. The first segment 91 includes a prism, which is hollow and open at the top and front. The left and right ends of the prism can be connected to the slider 117 respectively, and the top end of the first segment 91 can be connected to the driving part of the driving member 6. The front end of the first segment 91 can be connected to the second segment 92. The front end of the second segment 92 can be connected to the first panel 112.

[0087] It should be noted that the oil separated from the upper housing 2 falls from the horizontal portion 12 into the vertical portion 11, and can continue to fall into the oil collection tank 4 of the vertical portion 11. The oil collection tank 4 is located at the lower end of the vertical portion 11. Exemplarily, the oil collection tank 4 may include a tank body with an open upper end. The tank body may be provided with a bottom support frame 7 for supporting the first back plate 114 mentioned above. In order for the oil on the first back plate 114 to fall into the lower oil collection tank 4, the first back plate 114 may be provided with an oil outlet hole 93 communicating with the oil collection tank 4.

[0088] In summary, the lower portions of the first panel 112, second panel 113, first back plate 114, and second back plate 115 mentioned above, along with the lower sections 831 of the third connecting plates 83 located on the left and right sides, can form a vertical portion 11. The second back plate 115 is connected to the second panel 113 via the lower section 831 of the third connecting plate 83. The first back plate 114 is connected to the first panel 112. The driving member 6, mounted on the second back plate 115, drives the first back plate 114 to move, thereby causing the first panel 112 to move, thus opening and closing the air inlet 111.

[0089] Furthermore, this invention uses a drive unit 6 to drive the first panel 112 downwards to open the air inlet 111. Therefore, the range hood employs side air intake, and the air inlet 111 is located at the bottom of the range hood. This not only extracts cooking fumes but also harmful gases from the gas combustion process. Moreover, the near-side suction method allows cooking fumes to quickly enter the lower housing 1 before they diffuse, resulting in excellent fume extraction. The specific structure of the horizontal portion 12 will now be described.

[0090] like Figure 5 and Figure 6 As shown, the horizontal portion 12 includes a third panel 121, a fourth panel 122, and a first connecting plate 81. The third panel 121 is located at the front end of the horizontal portion 12, the fourth panel 122 is located at the lower end of the horizontal portion 12, and the first connecting plate 81 is located at the upper end of the horizontal portion 12. The upper sections 832 of the two third connecting plates 83 mentioned above are respectively located on the left and right sides of the horizontal portion 12. It can be understood that the third panel 121, the fourth panel 122, the upper sections 832 of the two third connecting plates 83, the upper part of the second back plate 115, and the first connecting plate 81 together form an accommodating space.

[0091] For example, such as Figure 5 and Figure 6 As shown, the front end of the first connecting plate 81 is bent with a third fold plate 811, which is disposed on the rear side of the fourth panel 122 and connected to the fourth panel 122. In this way, the connection between the front side of the first connecting plate 81 and the fourth panel 122 is realized.

[0092] Figure 12 for Figure 7 The partial cross-sectional view of the range hood at point ZZ is shown below. Figure 6 , Figure 7 , Figure 9 as well as Figure 12 As shown, the upper section 832 of the third connecting plate 83 is bent with a third flange 853, which is L-shaped. One end of the first connecting plate 81 is bent with a fourth flange 854. The third flange 853 and the fourth flange 854 are connected to achieve the connection between the left and right sides of the third connecting plate 83 and the first connecting plate 81.

[0093] Optionally, a reinforcing member 86 is connected to the inner wall of the upper side of the first connecting plate 81 to enhance the structural strength of the first connecting plate 81. Figure 6 and Figure 12 The example is shown using reinforcement member 86 as a reinforcing strip.

[0094] Continue as Figure 6As shown, the rear side of the first connecting plate 81 is provided with a fifth flange, which is connected to the upper part of the second back plate 115 to realize the connection between the rear side of the first connecting plate 81 and the second back plate 115.

[0095] In addition, such as Figure 6 , Figure 9 and Figure 12 As shown, the lower end of the upper section 832 of the third connecting plate 83 is bent with a second folded plate 834, and the third folded plate 811 of the first connecting plate 81 is bent with a sixth flange. The second folded plate 834 and the sixth flange are disposed on the upper side of the third panel 121 and connected to the third panel 121. In this way, the connection between the first connecting plate 81, the third connecting plate 83 and the third panel 121 is realized.

[0096] In addition, such as Figure 6 and Figure 11 As shown, the third panel 121 and the second panel 113 are connected by a second connecting plate 82. The second connecting plate 82 is L-shaped, with one end positioned on the upper side of the third panel 121 and connected to it. The other end of the second connecting plate 82 is positioned on the rear side of the second panel 113 and connected to it. This achieves the connection between the second panel 113 and the third panel 121.

[0097] Figure 11 for Figure 6 The schematic diagram shown at point 3 of the flow guide is as follows: Figure 6 and Figure 11 As shown, a flow guide 3 is provided within the aforementioned accommodating space. Optionally, the flow guide 3 may include a base plate 31 and side walls 32, wherein the base plate 31 is inclined relative to the third panel 121, and the side walls 32 are disposed on the left and right sides of the base plate 31. The side walls 32 extend upward and form an oil outlet channel communicating with the vertical portion 11 together with the base plate 31. That is, before the oil on the base plate 31 flows into the vertical portion 11, it is first guided through the oil outlet channel, so that the oil in the flow guide 3 can be controllably introduced into the vertical portion 11, avoiding uncertain oil flow.

[0098] Optionally, the guide member 3 also includes a baffle 34 connected to the base plate 31. The baffle 34 is located between the two side walls 32, and the height of the baffle 34 is lower than that of the side walls 32. The baffle 32 is provided with an oil outlet 33. That is, the baffle 34 can form a barrier between the base plate 31 and the vertical portion 11 to intercept and store the separated oil, so as to prevent the oil in the guide member 3 from flowing into the vertical portion 11 too quickly and in large quantities, and to prevent a large amount of downward flowing oil from colliding with the upward flowing flue gas.

[0099] In addition, one or more oil outlets 33 may be provided. Figure 6 and Figure 11Taking an example where there are two oil outlets 33. The two oil outlets 33 are located on the left and right sides of the guide member 3, respectively, so as to maximize the storage of oil in the guide member 3 within the baffle 34 between the two oil outlets 33, thereby avoiding a large amount of oil coming into contact with the upward flue gas.

[0100] Optionally, such as Figure 6 As shown, reinforcing members 86 may be provided above the side walls 32 on both the left and right sides of the guide member 3 to improve the structural strength of the guide member 3. For example, the reinforcing member 86 is a reinforcing strip.

[0101] Optionally, the lower end of the guide member 3 extends at least partially into the vertical portion 11 and corresponds to the oil collection groove 4. That is, the front end of the guide member 3 is the higher end of the guide member 3, and the rear end of the guide member 3 is the lower end of the guide member 3. The oil in the guide member 3 flows from the lower end of the guide member 3 to the vertical portion 11. By extending the lower end of the guide member 3 into the vertical portion 11, the oil flowing down the guide member 3 will not come into contact with the inner wall of the vertical portion 11, which helps to maintain the cleanliness of the internal space of the lower housing 1.

[0102] For example, such as Figure 11 As shown, the rear end of the base plate is connected to protrusions on the left and right sides, which extend into the vertical portion. The outer periphery of each protrusion is connected to the aforementioned baffle, which has an oil outlet directly opposite the protrusion.

[0103] For example, such as Figure 10 As shown, the bottom wall of the first back plate 114 is provided with oil outlet holes 93, wherein two oil outlet holes 93 can correspond to the two oil outlets 33 of the oil outlet channel mentioned above. An oil outlet hole 93 can also be provided in the middle of the bottom wall of the first back plate 114 to increase the speed at which the separated oil flows from the first back plate 114 into the oil collection tank 4.

[0104] Optionally, continue as follows Figure 6 and Figure 11 As shown, the guide member 3 is directly opposite the fan 21. A sealing member 5 is provided between the side wall of the guide member 3 and the inner wall of the horizontal portion 12. The sealing member 5 is used to prevent flue gas from entering between the horizontal portion 12 and the guide member 3. Exemplarily, the air outlet of the first connecting plate 81 corresponds to the air inlet 111 of the upper housing 2. The air inlet 111 of the first connecting plate 81 can be smaller than the width of the guide member 3 so that all the separated oil flowing down from the upper housing 2 can enter the guide member 3.

[0105] In other words, the gas entering the guide vane 3 is directly opposite the fan 21, which can reduce the flow path of the flue gas and improve exhaust efficiency. In addition, for the overall weight distribution of the range hood, the fan 21 is generally located in the middle of the upper housing 2. In order to ensure that all the flue gas in the vertical part 11 enters the guide vane 3, the outer side of the guide vane 3 and the horizontal part 12 need to be sealed by the sealing element 5.

[0106] Among them, such as Figure 11 As shown, the sealing element 5 can be a sealing plate, which can be Z-shaped. The upper end of the sealing plate is connected to the first connecting plate 81, and the lower end of the sealing plate can be connected to the second connecting plate 82 mentioned above or the third panel 121. Two sealing plates can be provided, and the two sealing plates can be arranged on both sides of the lower end of the guide member 3.

[0107] Optionally, the front surface of the horizontal portion 12 and / or the vertical portion 11 of the lower housing 1 is made of tempered glass. That is, the first panel 112, the second panel 113, the third panel 121, and the fourth panel 122 mentioned above can be made of tempered glass. The front end of the lower housing 1 faces the user and the cooktop. When the range hood is working, some of the fumes generated at the cooktop are sucked in by the range hood, while some fumes do not enter the range hood, causing the oil in these fumes to stick to the front end of the lower housing 1. When the front end of the lower housing 1 is made of tempered glass, the user can more easily remove the oil from the tempered glass surface, making it easier for the user to clean the range hood.

[0108] The upper shell 2 will now be described.

[0109] like Figure 6 As shown, the upper housing 2 has an air outlet at its upper end and an air inlet at its lower end. This air inlet communicates with the air outlet of the lower housing 1, specifically with the air outlet of the first connecting plate 81. Exemplarily, the upper housing 2 includes a first part 22 and a second part 23 connected to the first part 22. The first part 22 has a U-shaped cross-section, and the second part 23 can block the U-shaped opening of the first part 22. A fan 21 is located inside the upper housing 2 and is electrically connected to an external power source or a battery. The fan 21 is also electrically connected to the control buttons on the control panel mentioned above, which are located on the fourth panel 122.

[0110] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to the relative positions without substantially altering the technical content should also be considered as part of the scope of the invention.

[0111] It should be noted that, in this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0112] Furthermore, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A range hood, characterized in that, include: The lower housing includes a vertical portion and a horizontal portion, wherein the vertical portion is provided with an air inlet; An upper housing is mounted on the horizontal portion and has an air outlet; a fan is installed inside the upper housing. A flow guide is disposed within the horizontal portion and inclined relative to the horizontal plane. The upper housing and the air inlet are connected through the flow guide, and the upper housing, the flow guide, and the air inlet define an airflow channel for supplying flue gas. The flow guide includes a base plate and two opposing sidewalls connected to the base plate. The sidewalls extend upward and form an oil outlet channel with the base plate. The oil outlet channel is connected to the vertical portion. The flow guide also includes a baffle wall connected to the base plate, the baffle wall being located between the two side walls and the height of the baffle wall being lower than that of the side walls, and the baffle wall being provided with an oil outlet; The bottom plate has protrusions on the left and right sides of its rear end, the protrusions extend into the vertical portion, and the outer periphery of the protrusions is connected to the baffle. The oil outlet is directly opposite the protrusion.

2. The range hood according to claim 1, characterized in that, The lower end of the vertical section is provided with an oil collection groove that communicates with the vertical section, and the rear end of the guide extends into the vertical section and is directly opposite the oil collection groove.

3. The range hood according to claim 2, characterized in that, The oil collection tank has an upward-facing opening, and the interior of the oil collection tank is provided with a support frame for supporting the lower end of the lower housing, so that there is a gap between the lower end of the lower housing and the bottom wall of the oil collection tank.

4. The range hood according to any one of claims 1-3, characterized in that, The flow guide is directly opposite the fan, and a sealing element is provided between the outer wall of the flow guide and the inner wall of the horizontal portion.

5. The range hood according to any one of claims 1-3, characterized in that, The front surface of the vertical and / or horizontal portion is provided with tempered glass.

6. The range hood according to any one of claims 1-3, characterized in that, The air inlet can be opened and closed.

7. The range hood according to claim 6, characterized in that, The front end of the vertical section is provided with a first panel and a second panel arranged side by side. The first panel can move away from the second panel so that the air inlet is formed between the first panel and the second panel; The first panel can move toward the second panel so that the first panel abuts against the second panel; The first panel is located below the second panel, and the rear end of the vertical portion is provided with a first back plate and a second back plate stacked together. The first back plate is located in front of the second back plate and is connected to the first panel. The second back plate is provided with a driving member, which is used to drive the first back plate to move up and down.

8. The range hood according to claim 7, characterized in that, The inner wall of the lower housing is provided with a slide rail, and the first back plate is provided with a slider, which slides on the slide rail.

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