Range hood

Abstract

The application discloses an oil fume extractor, which comprises a machine body, a blowing assembly and a guide vane. The front side of the machine body is provided with a panel, and the panel is provided with an air outlet. The machine body is provided with an air inlet. The air inlet and the air outlet are connected through an air duct. The blowing assembly is connected to the machine body and is at least partially located in the air duct. The blowing assembly can make the air in the air duct flow from the air inlet to the air outlet. The guide vane is rotatably connected to the machine body. The guide vane can be rotated to guide the air output from the air outlet. The guide vane can be rotated to shield the air outlet or block the air duct. In use, the blowing assembly is used to blow air, and the guide vane is used to rotate and guide the air. The air is output from the air outlet at a preset angle to form an air curtain, which is beneficial to prevent the overflow of oil fume and reduce the front-to-back size of the oil fume extractor, thereby reducing the possibility of head collision for the user. The air outlet angle can be adjusted by rotating the guide vane. The smoke gathering range of the air curtain can be adjusted and changed, thereby improving the applicability.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] Some existing range hoods feature an air curtain function to achieve better smoke extraction. The air outlet blows air to form an air curtain, preventing cooking fumes from easily escaping into the kitchen and effectively capturing them. The air curtain structure of existing range hoods is generally a drawer-type design. The air outlet extends like a drawer within the body. When in use, it is activated by a drive to extend and create the air curtain; when not in use, it retracts into the body to conceal the air outlet and prevent debris from entering. However, this extendable design increases the front-to-back dimensions of the range hood, resulting in a larger footprint. Especially when the outlet is extended, it can easily cause users to bump their heads. Furthermore, the fixed air outlet angle results in a relatively fixed smoke-collecting range for the air curtain, making it less adaptable. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a range hood that utilizes an air supply component to deliver air and uses rotating guide vanes to guide the airflow, causing the air to be output from the air outlet at a preset angle, forming an air curtain. This helps to prevent the spread of cooking fumes, reduces the front-to-back dimensions of the range hood, lowers the possibility of users bumping their heads, and the air outlet angle can be adjusted by rotating the guide vanes, thus adjusting the smoke collection range of the air curtain and improving its applicability.

[0004] According to an embodiment of the present invention, a range hood includes a body, an air supply assembly, and a guide vane. The front side of the body has a panel with an air outlet. The body has an air inlet. An air duct is provided between the air inlet and the air outlet and is connected through the air duct. The air supply assembly is connected to the body and is at least partially located in the air duct, enabling air in the air duct to flow from the air inlet to the air outlet. The guide vane is rotatably connected to the body and can rotate to guide the air output from the air outlet. The guide vane can also rotate to shield the air outlet or block the air duct.

[0005] The range hood according to the embodiments of the present invention has at least the following beneficial effects: When idle, the guide vanes rotate to shield the air outlet or block the air duct, which helps to prevent foreign objects from entering the machine body and improves the reliability of use; when in use, the range hood extracts oil fumes, the air supply component works, causing the air in the air duct to flow from the air inlet to the air outlet, and air is delivered to the air outlet. Rotating the guide vanes releases the shielding of the air outlet or the blockage of the air duct, and at the same time, it guides the air output from the air outlet, so that the air is output from the air outlet at a preset angle to form an air curtain, which helps to prevent oil fumes from spreading. By rotating the guide vanes to guide the air out and form an air curtain, it helps to avoid the problem of increased front and rear dimensions caused by the front and rear extension setting of the components, which helps to reduce the front and rear dimensions of the range hood, reduces the possibility of bumping the user's head, and the air outlet angle can be adjusted by rotating the guide vanes, and the smoke collection range of the air curtain can be adjusted and changed, improving applicability.

[0006] According to some embodiments of the present invention, the air guide vane is located in the air duct, and the air guide vane has a first air guide portion extending toward the air outlet and a second air guide portion extending away from the air outlet. The first air guide portion can rotate with the air guide vane to abut against the upper wall of the air outlet or rotate to form an air outlet gap with the lower wall of the air outlet. The second air guide portion can rotate with the air guide vane to abut against the side wall of the air duct.

[0007] According to some embodiments of the present invention, the first air guide portion extends from the air outlet, and the first air guide portion is provided with an air guide curved surface, which enables the air output from the air outlet gap to flow downward.

[0008] According to some embodiments of the present invention, the guide vane is connected to a first driver, which is capable of driving the guide vane to rotate.

[0009] According to some embodiments of the present invention, the body is connected to a sterilization component, which is at least partially located in the air duct and is capable of sterilizing the air in the air duct.

[0010] According to some embodiments of the present invention, the sterilization component includes a plasma generator or a negative ion generator, wherein the plasma generator or the negative ion generator extends into the air duct.

[0011] According to some embodiments of the present invention, the air duct is provided with a medicine box for placing medicinal materials, and the medicine box is provided with a plurality of ventilation holes for air circulation.

[0012] According to some embodiments of the present invention, the body has a first cavity and a second cavity that are interconnected. The first cavity is connected to a smoke inlet, and the second cavity is provided with a fan assembly. The fan assembly has an exhaust port and an exhaust port. The exhaust port is connected to the second cavity, and the exhaust port is connected to the outside. A separation mesh is provided between the first cavity and the second cavity.

[0013] According to some embodiments of the present invention, the body is rotatably connected to a smoke-gathering plate at the smoke inlet, and the smoke-gathering plate is connected to a second driver, which can drive the smoke-gathering plate to rotate.

[0014] According to some embodiments of the present invention, an oil collection trough is provided on the upper side of the first cavity, the separation net is inclined relative to the oil collection trough, the downward inclined end of the separation net is located above the oil collection trough, the blower assembly has an oil drain hole located above the oil collection trough, an oil collection tank is detachably connected to the lower side of the machine body, the oil collection tank has an oil collection cavity and an oil inlet communicating with the oil collection cavity, and the machine body is provided with an oil guide plate, which can guide the oil flowing out of the oil collection trough to the oil inlet.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of a center-suction range hood;

[0019] Figure 3 for Figure 1 A schematic diagram of a partial structural cross-section of a center-draft range hood;

[0020] Figure 4 for Figure 3 A schematic diagram of a partial structural cross-section of a center-suction range hood in operation;

[0021] Figure 5 for Figure 1 One of the structural diagrams of a center-draft range hood;

[0022] Figure 6 for Figure 1 The second part of the structural diagram of a center-draft range hood.

[0023] Figure label:

[0024] Body 100, air inlet 101, air duct 102, air outlet gap 103, smoke inlet 104, first chamber 105, second chamber 106, panel 110, air outlet 111, separation net 120, smoke collection plate 130, oil collection trough 140, oil collection box 150, oil collection chamber 151, oil inlet 152, oil guide plate 160;

[0025] Air supply assembly 200, impeller 210, third drive 220;

[0026] Guide vane 300, first guide section 310, guide curved surface 311, second guide section 320;

[0027] Sterilization component 400, plasma generator 410;

[0028] Fan assembly 500, exhaust port 501, exhaust port 502, oil drain hole 503. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this invention, it should be understood that if the orientation description, such as up, down, front, back, etc., is based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing this invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0032] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A range hood includes a body 100, an air supply assembly 200, and a guide vane 300. The front side of the body 100 has a panel 110 with an air outlet 111. The body 100 has an air inlet 101. An air duct 102 is provided between the air inlet 101 and the air outlet 111 and is connected through the air duct 102. The air supply assembly 200 is connected to the body 100 and is at least partially located in the air duct 102, enabling air in the air duct 102 to flow from the air inlet 101 to the air outlet 111. The guide vane 300 is rotatably connected to the body 100 and can rotate to guide the air output from the air outlet 111. The guide vane 300 can rotate to block the air outlet 111 or block the air duct 102.

[0034] Understandably, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the air duct 102 has an "L"-shaped channel structure. The body 100 has multiple air inlets 101 on the upper side of the air duct 102. The panel 110 is tilted at a preset angle so that the air outlet 111 faces downwards, facilitating airflow towards the user and providing cooling while forming an air curtain. (Refer to...) Figure 3 and Figure 5 The air supply assembly 200 includes a fan wheel 210 disposed in the air duct 102 and a third driver 220 drivenly connected to the fan wheel 210. The third driver 220 drives the fan wheel 210 to rotate, thereby driving airflow from the air inlet 101 to the air outlet 111. (Refer to...) Figure 3 When not in use, the guide vane 300 is rotated to block the air outlet 111 or seal the air duct 102 to help prevent foreign objects from entering the body 100 and improve the reliability of use; refer to Figure 4 When in use, the range hood extracts cooking fumes, and the air supply component 200 operates, causing air in the duct 102 to flow from the air inlet 101 to the air outlet 111, supplying air to the air outlet 111. Rotating the guide vane 300 releases its obstruction of the air outlet 111 or blockage of the duct 102, while simultaneously guiding the air output from the air outlet 111, causing the air to exit from the air outlet 111 at a preset angle, forming an air curtain to help prevent the spread of cooking fumes. By rotating the guide vane 300 to guide the air out and form an air curtain, it helps avoid the problem of increased front and rear dimensions caused by the front and rear extension settings of the components, thus reducing the front and rear dimensions of the range hood and reducing the possibility of users bumping their heads. Moreover, the air outlet angle can be adjusted by rotating the guide vane 300, and the range of smoke collection of the air curtain can be adjusted and changed, improving its applicability.

[0035] In practical applications, the specific structures of the body 100 and the guide vane 300 can be set according to actual usage needs, and will not be described in detail here, but will be described in detail below; the air supply component 200 can be a DC fan or a turbine fan, etc. Since the specific structure of the air supply component 200 in this embodiment of the invention is known to those skilled in the art, it will not be described in detail here.

[0036] In some embodiments, the air guide vane 300 is located in the air duct 102. The air guide vane 300 has a first air guide portion 310 extending toward the air outlet 111 and a second air guide portion 320 extending away from the air outlet 111. The first air guide portion 310 can rotate with the air guide vane 300 to abut against the upper wall of the air outlet 111 or rotate to form an air outlet gap 103 between it and the lower wall of the air outlet 111. The second air guide portion 320 can rotate with the air guide vane 300 to abut against the side wall of the air duct 102.

[0037] Understandably, such as Figure 3 and Figure 4 As shown, the guide vane 300 is located in the air duct 102 and has a first guide section 310 extending towards the air outlet 111 and a second guide section 320 extending away from the air outlet 111. When idle, the guide vane 300 is rotated so that the first guide section 310 abuts against the upper wall of the air outlet 111 and the second guide section 320 abuts against the lower side wall of the air duct 102, so as to better block the air duct 102 and help prevent foreign objects from entering. When in use, the guide vane 300 is rotated so that the first guide section 310 rotates to form an air outlet gap 103 between itself and the lower wall of the air outlet 111, and the second guide section 320 abuts against the upper side wall of the air duct 102, so that the air from the air outlet 111 is output from the air outlet gap 103, which facilitates the formation of an air curtain. Its structure is simple and easy to use.

[0038] In practical applications, in addition to the above structure, the air guide vane 300 can also be rotatably connected to the air outlet 111, with its upper end rotatably connected to the panel 110. By rotating it to shield the air outlet 111 to prevent foreign objects from entering, and by rotating it away from the air outlet 111, the air outlet 111 is opened to guide the output airflow. The specific configuration can be changed according to the actual usage requirements.

[0039] In some embodiments, the first air guide portion 310 extends from the air outlet 111, and the first air guide portion 310 is provided with an air guide surface 311, which can guide and transport the air output from the air outlet gap 103 downward.

[0040] Understandably, such as Figure 3 and Figure 4As shown, the first air guide section 310 extends from the air outlet 111. The extended end of the first air guide section 310 has a curved structure to form an air guide surface 311. When the first air guide section 310 rotates to form an air outlet gap 103 with the lower wall of the air outlet 111, the air guide surface 311 guides the air downwards at an angle, causing the air output from the air outlet gap 103 to be delivered downwards at an angle, so as to facilitate airflow towards the user. While forming an air curtain, it can provide airflow and heat dissipation for the user and achieve a good air curtain effect. In actual applications, the specific structure of the first air guide section 310 can be set according to the actual use needs, which will not be described in detail here.

[0041] In some embodiments, the guide vane 300 is connected to a first driver (not shown in the figure), which drives the guide vane 300 to rotate. It is understood that by setting the first driver to drive the guide vane 300 to rotate, it is beneficial to achieve electric opening and closing of the air curtain function, improve the level of intelligence, and reduce user operation. In practical applications, the guide vane 300 can also be manually rotated by the user to achieve the opening and closing control of the air curtain function; the specific settings can be adjusted according to actual usage needs.

[0042] In some embodiments, the body 100 is connected to a sterilization component 400, which is at least partially located in the air duct 102 and is capable of sterilizing the air in the air duct 102.

[0043] Understandably, such as Figure 3 , Figure 4 and Figure 5 As shown, by setting the sterilization component 400 to sterilize the air in the air duct 102, the air outlet 111 can output cleaner air, which is beneficial for sterilizing and exchanging the air environment in the kitchen, realizing the fresh air function, and making it easy to use. In actual application, the specific structure of the sterilization component 400 can be set according to the actual use needs.

[0044] In some embodiments, the sterilization component 400 includes a plasma generator 410 or a negative ion generator (not shown), the plasma generator 410 or the negative ion generator extending into the air duct 102.

[0045] Understandably, such as Figure 3 , Figure 4 and Figure 5As shown, the sterilization component 400 includes a plasma generator 410, which extends into the air duct 102. During use, the plasma generator 410 ionizes the air to generate a large number of positive and negative ions. These positive and negative ions neutralize each other in the air, releasing energy and causing changes in the structure or energy conversion of surrounding bacteria, leading to bacterial death and sterilization. Furthermore, since the number of negative ions is generally greater than the number of positive ions, the excess negative ions remain suspended in the air, achieving smoke elimination, biogas removal, odor elimination, and improved air quality, thus promoting human health.

[0046] In practical applications, the sterilization component 400 may also include a negative ion generator, which generates negatively charged negative ions. These negatively charged negative ions neutralize positively charged smoke and dust particles floating in the air, causing them to settle naturally and achieving the effect of cleaning the air. Alternatively, the sterilization component 400 may also include an ultraviolet germicidal lamp, which uses ultraviolet light to irradiate the air to achieve sterilization. The specific composition of the sterilization component 400 may vary according to actual usage needs.

[0047] In some embodiments, a herb box for placing medicinal herbs is provided in the air duct 102, and the herb box has multiple ventilation holes for air circulation. It is understood that by providing a herb box in the air duct 102, beneficial medicinal herbs can be placed in the box during use. The air supply component 200 delivers air through the ventilation holes in the herb box, ensuring the output airflow carries the aroma of the corresponding medicinal herbs. This is beneficial for health maintenance and increases the functionality of the range hood. In practical applications, the specific structure and location of the herb box can be customized according to actual usage needs and are not limited here.

[0048] In some embodiments, the body 100 has a first cavity 105 and a second cavity 106 that are interconnected. The first cavity 105 is connected to a smoke inlet 104. The second cavity 106 is provided with a fan assembly 500, which has an exhaust port 501 and an exhaust port 502. The exhaust port 501 is connected to the second cavity 106, and the exhaust port 502 is connected to the outside. A separation net 120 is provided between the first cavity 105 and the second cavity 106.

[0049] Understandably, such as Figure 1 and Figure 2As shown, the first chamber 105 is located below the second chamber 106, and the first chamber 105 and the second chamber 106 are interconnected. The separation screen 120 is disposed between the first chamber 105 and the second chamber 106. In use, the fan assembly 500 operates, causing the oil fumes to be drawn into the first chamber 105 through the smoke inlet 104, pass through the separation screen 120, and enter the second chamber 106. The grease in the oil fume air cools and condenses on the separation screen 120, thereby reducing the grease content of the oil fume air in the second chamber 106, achieving the effect of filtration and separation, and facilitating use. The air in the second chamber 106 is drawn in through the exhaust port 501 of the fan assembly 500 and discharged through the exhaust port 502, achieving the effect of drawing out and discharging oil fumes.

[0050] In practical applications, the specific structure of the separation mesh 120 can be set according to actual usage needs. It can be a single-layer filter structure, such as a metal mesh plate or activated carbon filter, or a multi-layer filter structure formed by stacking multiple single-layer filter meshes. Since the specific structure of the separation mesh 120 in this embodiment is known to those skilled in the art, it will not be described in detail here.

[0051] In some embodiments, a smoke-collecting plate 130 is rotatably connected to the body 100 at the smoke inlet 104. The smoke-collecting plate 130 is connected to a second driver (not shown in the figure), which can drive the smoke-collecting plate 130 to rotate.

[0052] Understandably, such as Figure 1 and Figure 2 As shown, during use, the second actuator drives the smoke-collecting plate 130 to rotate, causing the smoke-collecting plate 130 to flip upwards and open, which helps to prevent oil fumes from overflowing upwards, achieving the effect of collecting smoke and facilitating use. In actual applications, the specific structure of the smoke-collecting plate 130 and the second actuator can be set according to actual usage needs.

[0053] In some embodiments, an oil collection trough 140 is provided on the upper side of the first cavity 105, and a separating net 120 is inclined relative to the oil collection trough 140. The downward inclined end of the separating net 120 is located above the oil collection trough 140. The blower assembly 500 has an oil drain hole 503, which is located above the oil collection trough 140. An oil collection tank 150 is detachably connected to the lower side of the body 100. The oil collection tank 150 has an oil collection cavity 151 and an oil inlet 152 communicating with the oil collection cavity 151. The body 100 is provided with an oil guide plate 160, which can guide the oil flowing out of the oil collection trough 140 to the oil inlet 152.

[0054] Understandably, such as Figure 2 and Figure 6As shown, the oil collection tank 140 is located above the first cavity 105, and the downward-sloping end of the separating screen 120 is located above the oil collection tank 140 to facilitate the collection of grease flowing down from the separating screen 120. The fan assembly 500 is inclined, and its lowest side is provided with an oil drain hole 503 to facilitate the discharge of grease accumulated inside and to facilitate the collection of grease. The oil collection tank 140 has notches on both sides to allow the collected oil to flow out from the notches. The flowing oil is guided by the oil guide plate 160 to the oil inlet 152, and then enters the oil collection cavity 151 for collection. During cleaning, the oil collection tank 150 can be disassembled and removed to drain the grease in the oil collection cavity 151 for easy cleaning. The above structure is simple and reasonable, which is conducive to the collection of grease on the separating screen 120 and the fan assembly 500, reduces the contamination of the inner wall of the machine body 100 by grease, and facilitates cleaning and use.

[0055] In practical applications, the oil collection tank 150 can be detachably connected to the lower side of the machine body 100 through a threaded structure or a snap-fit ​​structure. The specific structure and specific setting position of the oil guide plate 160 can be changed according to actual use needs, and are not limited here.

[0056] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A range hood characterized by, include: The body (100) has a panel (110) on its front side, an air outlet (111) on the panel (110), the panel (110) is tilted at a preset angle so that the air outlet (111) faces downwards, the body (100) has an air inlet (101), and an air duct (102) is provided between the air inlet (101) and the air outlet (111) and is connected through the air duct (102); An air supply assembly (200) is connected to the body (100), the air supply assembly (200) is at least partially located in the air duct (102) and is able to allow air in the air duct (102) to flow from the air inlet (101) to the air outlet (111); A guide vane (300) is rotatably connected to the body (100) and located in the air duct (102). The guide vane (300) can rotate to guide the air output from the air outlet (111), so that the air is output from the air outlet (111) at a preset angle to form an air curtain. The guide vane (300) can rotate to block the air duct (102). The guide vane (300) has a first guide section (310) extending toward the air outlet (111) and a second guide section (320) extending away from the air outlet (111). The first guide section (310) can rotate with the guide vane (300) to abut against the upper wall of the air outlet (111) or rotate to form an air outlet gap (103) between itself and the lower wall of the air outlet (111). The second guide section (320)... The first air guide (310) can rotate with the guide vane (300) to abut against the side wall of the air duct (102). The first air guide (310) extends out from the air outlet (111). The first air guide (310) is provided with a guide surface (311). The guide surface (311) can guide the air output from the air outlet gap (103) downward. When the guide vane (300) blocks the air duct (102), the first air guide (310) abuts against the upper wall of the air outlet (111), and the second air guide (320) abuts against the lower side wall of the air duct (102). When an air curtain is formed, the air outlet gap (103) is formed between the first air guide (310) and the lower wall of the air outlet (111), and the second air guide (320) abuts against the upper side wall of the air duct (102).

2. The hood according to claim 1, characterized in that, The air guide vane (300) is connected to a first driver, which is capable of driving the air guide vane (300) to rotate.

3. The hood according to claim 1, characterized in that, The body (100) is connected to a sterilization component (400), which is at least partially located in the air duct (102) and is capable of sterilizing the air in the air duct (102).

4. The hood according to claim 3, characterized in that, The sterilization component (400) includes a plasma generator (410) or a negative ion generator, wherein the plasma generator (410) or the negative ion generator extends into the air duct (102).

5. The hood according to claim 1, characterized in that, The air duct (102) is provided with a medicine box for placing medicinal materials, and the medicine box is provided with multiple ventilation holes for air circulation.

6. The hood according to claim 1, characterized in that, The body (100) has a first cavity (105) and a second cavity (106) that are interconnected. The first cavity (105) is connected to a smoke inlet (104). The second cavity (106) is provided with a fan assembly (500). The fan assembly (500) has an exhaust port (501) and an exhaust port (502). The exhaust port (501) is connected to the second cavity (106), and the exhaust port (502) is connected to the outside. A separation net (120) is provided between the first cavity (105) and the second cavity (106).

7. The hood according to claim 6, characterized in that The body (100) is rotatably connected to a smoke-collecting plate (130) at the smoke inlet (104). The smoke-collecting plate (130) is connected to a second driver, which can drive the smoke-collecting plate (130) to rotate.

8. The hood according to claim 6, characterized in that, The first cavity (105) has an oil collection trough (140) on its upper side. The separation net (120) is inclined relative to the oil collection trough (140). The downward inclined end of the separation net (120) is located above the oil collection trough (140). The blower assembly (500) has an oil drain hole (503) located above the oil collection trough (140). The lower side of the body (100) is detachably connected to an oil collection tank (150). The oil collection tank (150) has an oil collection cavity (151) and an oil inlet (152) communicating with the oil collection cavity (151). The body (100) is provided with an oil guide plate (160). The oil guide plate (160) can guide the oil flowing out of the oil collection trough (140) to the oil inlet (152).

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