Oil cup vibration damping method and range hood

Abstract

This invention relates to a method for preventing vibration of an oil cup and a range hood. The method for preventing vibration of the oil cup includes the following steps: a. The range hood is turned on, and two rangefinders detect the real-time distance h between the hook on their respective sides and the range hood body at intervals t. l1 h r1 Wherein, time t is a preset parameter that varies with the range hood's power level; the stronger the power level, the shorter the time t. l1 h represents the real-time distance between the left hook and the range hood body. r1 a. The real-time distance between the right-side hook and the range hood body; b. After each test, the measured real-time distance h is recorded. l1 h r1 With the initial spacing h l h r By comparing the results and using a flow direction correspondence table, the flow direction of the oil in the oil cup cavity is determined; c. The oil in the cavity is then pumped in the opposite direction to the flow direction using an oil pump. This effectively reduces the vertical vibration of the oil cup, thereby improving the user experience when using the range hood.

Description

Technical Field

[0001] This invention relates to the technical field of range hoods, and in particular to a method for preventing oil cup vibration and a range hood. Background Technology

[0002] The oil cup is used to store the oil produced during the operation of the range hood. Most existing oil cups are rectangular shells, lightweight, and suspended from the bottom of the range hood body by only two hooks along their length. Therefore, the vibration of the range hood body can be easily transmitted to the oil cup through the hooks, resulting in abnormal vibration and noise from the oil cup, which affects the user experience. Summary of the Invention

[0003] Therefore, it is necessary to provide a method for reducing the vibration and noise of the oil cup in current range hoods, as well as a range hood that can address this issue.

[0004] This application first provides a method for preventing vibration in an oil cup, including the following steps:

[0005] S100. When the range hood is turned on, two distance measuring devices detect the real-time distance h between the hook on their respective side and the range hood body at intervals t. l1 h r1 Wherein, time t is a preset parameter that varies with the range hood's power level; the stronger the power level, the shorter the time t. l1 h represents the real-time distance between the left hook and the range hood body. r1 This refers to the real-time distance between the right-side hook and the range hood body.

[0006] S200. After each detection, the measured real-time spacing h will be... l1 h r1 With the initial spacing h l h r By making comparisons and using the comparison results and the flow direction correspondence table, the flow direction of oil in the oil cup receiving cavity can be obtained.

[0007] S300. The oil pump transports the oil sludge in the containment cavity in the opposite direction to its flow.

[0008] The second aspect of this application provides a range hood for performing the above-mentioned oil cup vibration damping method, including a range hood body, an oil cup, and vibration damping components;

[0009] The oil cup includes an oil cup body and two hooks fixed to the oil cup body. The oil cup body is hung on the range hood body through the hooks. The oil cup body has an upward-opening receiving cavity. The receiving cavity is divided into two side receiving cavities in the horizontal direction. The two hooks correspond to the two side receiving cavities in the vertical direction respectively.

[0010] The vibration damping assembly includes an oil pump and two rangefinders. The two rangefinders correspond to the two hooks respectively, and the rangefinders are fixed to the range hood body or the oil cup to measure the vertical distance between the corresponding hook and the range hood body. The oil pump is fixed to the oil cup body, and the two oil pipes of the oil pump are respectively connected to the two side accommodating cavities for pumping oil between the two side accommodating cavities.

[0011] In one embodiment, at least a portion of the oil cup body and the internal receiving cavity are U-shaped to form a hollow portion in the middle of the oil cup body, and the oil pump is located in the hollow portion.

[0012] In one embodiment, the oil cup body includes an outer shell, an upper wall, and a lower wall. The upper wall and the lower wall are both fixed to the outer shell and are connected to each other to form the hollow portion. The two side receiving cavities are interconnected on the upper and lower sides of the hollow portion, so that the oil cup body and the internal receiving cavities are both O-shaped.

[0013] In one embodiment, the upper wall includes two upper sidewalls corresponding to the two side receiving cavities respectively, the two upper sidewalls are connected at the highest point of the upper wall, and the angle between each upper sidewall and the horizontal plane is in the range of 5° to 10°.

[0014] The lower wall includes two lower side walls corresponding to the two side receiving cavities respectively. The two upper side walls are connected at the lowest point of the lower wall, and the angle between each lower side wall and the horizontal plane is in the range of 0° to 5°.

[0015] In one embodiment, the bottom surface of the outer shell includes two side bottom surfaces corresponding to the two side receiving cavities respectively. The two side bottom surfaces are connected at the lowest point of the bottom surface, and the included angle between each side bottom surface and the horizontal plane is in the range of 15° to 20°.

[0016] In one embodiment, the distance between the bottom end of the oil pipe and the bottom surface of the side on which it is located ranges from 5 mm to 10 mm.

[0017] In one embodiment, an oil leakage hole is provided at the connection position of the two side bottom surfaces, and a sealing plug is detachably provided in the oil leakage hole.

[0018] In one embodiment, the receiving cavity is divided into two side receiving cavities centered on a vertical reference plane, and the oil cup and the vibration damping assembly are symmetrically arranged centered on the reference plane.

[0019] In one embodiment, the two hooks are located at opposite ends of the top of the oil cup body, away from the reference plane.

[0020] The above-mentioned oil cup vibration damping method is based on the real-time spacing h. l1 h r1 With the initial spacing h l h r The comparison results and flow direction correspondence table can determine the flow direction of oil inside the oil cup. An oil pump is used to pump oil in the opposite direction, from the lower side of the oil cup to the higher side. Pumping oil out from the lower side reduces the weight of that side of the oil cup, thus mitigating its downward vibration. Pumping oil into the higher side increases the weight of that side of the oil cup, thus mitigating its upward vibration. Therefore, the oil cup anti-vibration method of this application can effectively reduce the vertical vibration of the oil cup, thereby improving the user experience when using the range hood. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall process of the oil cup vibration damping method of this application;

[0022] Figure 2 This is a perspective view of one embodiment of the range hood of this application;

[0023] Figure 3 for Figure 2 The front view;

[0024] Figure 4 for Figure 2 A sectional view along the frontal viewing direction;

[0025] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0026] Reference numerals: 100, reference plane; 10, range hood body; 20, oil cup; 21, oil cup body; 21a, receiving cavity; 21a1, side receiving cavity; 21b, hollow part; 211, outer shell; 212, upper wall; 212a, upper side wall; 213, lower wall; 213a, lower side wall; 22, hook; 23, sealing plug; 30, vibration damping assembly; 31, oil pump; 311, oil pipe; 32, rangefinder. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] 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 mechanical connection or an electrical connection; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] 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," "over," and "on top" of 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.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Please refer to Figure 1 As shown, this application first provides a method for preventing vibration in an oil cup, including the following steps:

[0034] S100. When the range hood is turned on, two distance measuring devices detect the real-time distance h between the hook on their respective side and the range hood body at intervals t. l1 h r1 Wherein, time t is a preset parameter that varies with the range hood's power level; the stronger the power level, the shorter the time t. l1 h represents the real-time distance between the left hook and the range hood body. r1 This is the real-time distance between the right-side hook and the range hood body.

[0035] Preferably, the range hood has two speed settings: a high speed setting with a time t of 1 to 3 seconds and a low speed setting with a time t of 3 to 5 seconds. Of course, the actual number of speed settings and the corresponding time range t can be adjusted according to actual needs and equipment performance; this application does not impose further limitations on these settings.

[0036] S200. After each detection, the measured real-time spacing h will be... l1 h r1 With the initial spacing h l h r By making comparisons, the flow direction of oil in the oil cup cavity can be obtained based on the comparison results and the flow direction correspondence table.

[0037] S300. The oil pump transports the oil sludge in the containment cavity in the opposite direction to its flow.

[0038] For ease of description, the oil cup 20 in the part containing the left-side accommodating cavity 21a1 is defined as the left-side oil cup 20, and the oil cup 20 in the part containing the right-side accommodating cavity 21a1 is defined as the right-side oil cup 20.

[0039] Specifically, the flow direction correspondence table is as follows:

[0040]

[0041] Flow direction corresponds to Table 1,

[0042] Comparison results Oil slick flow <![CDATA[丨h l -h l1 丨<丨h r -h r1 丨]]> The oil in the right oil cup flows to the left. <![CDATA[丨h l -h l1 丨=丨h r -h r1 丨]]> The oil stains showed no obvious flow. <![CDATA[丨h l -h l1 丨>丨h r -h r1 丨]]> The oil in the left oil cup flows to the right.

[0043] Flow direction corresponds to Table 2,

[0044] Comparison results Oil slick flow <![CDATA[丨h l1 -h l 丨<丨h r1 -h r 丨]]> The oil in the left oil cup flows to the right. <![CDATA[丨h l1 -h l 丨=丨h r1 -h r 丨]]> The oil stains showed no obvious flow. <![CDATA[丨h l1 -h l 丨>丨h r1 -h r 丨]]> The oil in the right oil cup flows to the left.

[0045] The flow direction corresponds to Table 3.

[0046] More specifically, the principle behind reducing the vibration of oil cup 20 by redirecting the oil flow to the opposite side under different comparison results is as follows:

[0047] 1.h l1 <h l h r1 =h r When the left oil cup 20 vibrates upwards while the right oil cup 20 does not vibrate, the oil sludge in the left side receiving cavity 21a1 flows to the right side receiving cavity 21a1 under the action of gravity, which reduces the weight of the left oil cup 20 and makes the upward vibration of the left oil cup 20 more obvious. At this time, starting the oil pump 31 to pump the oil sludge from the right side to the left side can reduce the upward vibration of the left oil cup 20 by increasing the weight of the left oil cup 20.

[0048] 2.h l1 <h l h r1 >h r At that time, it was proven that the left oil cup 20 vibrated upward and the right oil cup 20 vibrated downward. Similarly, the oil flowed from the left side receiving cavity 21a1 to the right side receiving cavity 21a1, which caused the right side oil to aggravate the downward vibration of the right oil cup 20 under the action of gravity. The left oil cup 20 would vibrate more obviously due to the oil flowing away and the weight reduction. Therefore, the oil pump 31 was started to pump the oil from the right side to the left side. By pumping out the oil, the weight of the right oil cup 20 was reduced, thus slowing down the downward vibration of the right oil cup 20. At the same time, by pumping in the oil, the weight of the left oil cup 20 was increased, thus slowing down the upward vibration of the left oil cup 20.

[0049] 3.h l1 =h l h r1 <h r When the left oil cup 20 is not vibrating, the right oil cup 20 vibrates upward. The oil in the right side cavity 21a1 flows to the left side cavity 21a1 under the action of gravity, which reduces the weight of the right oil cup 20 and makes the upward vibration of the right oil cup 20 more obvious. At this time, the oil pump 31 is started to pump the oil from the left to the right, which can reduce the upward vibration of the right oil cup 20 by increasing the weight of the right oil cup 20.

[0050] 4.h l1 =h l h r1 =h rAt that time, it was found that there was no obvious vibration in the oil cups 20 on both sides, so the oil in the receiving cavity 21a did not flow and the oil pump 31 did not need to be started.

[0051] 5.h l1 =h l h r1 >h r When the left oil cup 20 is not vibrating, the right oil cup 20 vibrates downward. The oil in the left side cavity 21a1 flows to the right side cavity 21a1 under the action of gravity, which causes the oil on the right side to aggravate the downward vibration of the right oil cup 20 under the action of gravity. Therefore, starting the oil pump 31 to pump the oil from the right side to the left side can effectively reduce the downward vibration of the right oil cup 20.

[0052] 6.h l1 >h l h r1 <h r At that time, it was proven that the left oil cup 20 vibrated downward and the right oil cup 20 vibrated upward. The oil in the right side receiving cavity 21a1 flowed to the left side receiving cavity 21a1 under the action of gravity. As a result, the oil on the left side would aggravate the downward vibration of the left oil cup 20 under the action of gravity. The right oil cup 20 would vibrate more obviously due to the oil flowing away and the weight reduction. Therefore, starting the oil pump 31 to pump the oil from the left to the right side can reduce the weight of the left oil cup 20 by pumping out the oil and thus reduce the downward vibration of the left oil cup 20. At the same time, pumping in the oil increases the weight of the right oil cup 20 and thus reduces the upward vibration of the right oil cup 20.

[0053] 7.h l1 >h l h r1 =h r When the oil cup 20 vibrates downward, the oil cup 20 does not vibrate. The oil in the right side cavity 21a1 flows to the left side cavity 21a1 under the action of gravity. As a result, the oil on the left side will aggravate the downward vibration of the left oil cup 20 under the action of gravity. Therefore, starting the oil pump 31 to pump the oil from the left side to the right side can effectively reduce the downward vibration of the left oil cup 20.

[0054] 8.h l1 <h l h r1 <h r At this time, it is proven that both oil cups 20 on the left and right sides vibrate upwards. This can be verified by comparing |h. l -h l1 |and|h r -h r1 The magnitude of the difference can determine the direction of oil flow within the accommodating cavity 21a:

[0055] When |hl -h l1 |<|h r -h r1 | At that time, it was proven that the amplitude of the upward vibration of the left oil cup 20 was smaller than that of the right oil cup 20, and the oil in the right side receiving cavity 21a1 flowed to the left side receiving cavity 21a1 under the action of gravity.

[0056] When |h l -h l1 |=|h r -h r1 | At that time, it was proven that the amplitude of the upward vibration of the oil cups 20 on both the left and right sides was the same, and there was no obvious flow of oil inside the oil cups 20;

[0057] When |h l -h l1 |>|h r -h r1 | At that time, it was proven that the amplitude of the upward vibration of the left oil cup 20 was greater than that of the right oil cup 20, and the oil in the left side receiving cavity 21a1 flowed to the right side receiving cavity 21a1 under the action of gravity.

[0058] The specific vibration reduction principle is the same as that in the case of the same flow direction, and will not be repeated here.

[0059] 9.h l1 >h l h r1 >h r At this time, it is proven that both oil cups 20 on the left and right sides vibrate downwards. This can be verified by comparing |h. l -h l1 |and|h r -h r1 The difference in | can determine the flow direction of the oil in the receiving cavity 21a. The specific flow direction is related to h. l1 <h l h r1 <h r The opposite is true, and this application will not elaborate further.

[0060] It should be noted that the vibration of the main body of the range hood is mostly perpendicular to the sheet metal panel. Therefore, the vibration of the oil cup 20 is mostly caused by the vertical vibration of the hook 22.

[0061] The oil cup vibration damping method of this application is based on the real-time spacing h. l1 h r1 With the initial spacing h l h rThe comparison results and flow direction correspondence table can determine the flow direction of oil inside the oil cup. An oil pump is used to pump oil in the opposite direction, from the lower side of the oil cup to the higher side. Pumping oil out from the lower side reduces the weight of that side of the oil cup, thus mitigating its downward vibration. Pumping oil into the higher side increases the weight of that side of the oil cup, thus mitigating its upward vibration. Therefore, the oil cup anti-vibration method of this application can effectively reduce the vertical vibration of the oil cup, thereby improving the user experience when using the range hood.

[0062] Please combine Figures 2 to 5 As shown, the second aspect of this application provides a range hood for implementing the above-mentioned oil cup vibration damping method, including a range hood body 10, an oil cup 20, and a vibration damping component 30; the oil cup 20 includes an oil cup body 21 and two hooks 22 fixed to the oil cup body 21, the oil cup body 21 is hung on the range hood body 10 by the hooks 22, the oil cup body 21 has an upwardly opening receiving cavity 21a, the receiving cavity 21a is divided into two side receiving cavities 21a1 in the horizontal direction, and the two hooks 22 are connected to the two side receiving cavities 21a1 in the vertical direction. Each side cavity 21a1 corresponds to one of the two side cavities 21a1. The vibration damping component 30 includes an oil pump 31 and two rangefinders 32. The two rangefinders 32 correspond to two hooks 22 respectively, and the rangefinders 32 are fixed to the range hood body 10 or the oil cup 20 to measure the vertical distance between the corresponding hook 22 and the range hood body 10. The oil pump 31 is fixed to the oil cup body 21, and the two oil pipes 311 of the oil pump 31 are respectively connected to the two side cavities 21a1 for pumping oil between the two side cavities 21a1.

[0063] The oil produced by the range hood body 10 flows into the receiving cavity 21a through the upward opening. When the range hood body 10 causes the oil cup body 21 to vibrate through the hook 22, the two rangefinders 32 can detect the real-time distance between the hook 22 on their respective sides and the range hood body 10, thereby determining the direction of oil flow in the receiving cavity 21a, and using the oil pump 31 to transport the oil in the opposite direction of its flow, so as to reduce the vertical vibration of the oil cup body 21.

[0064] Specifically, the rangefinder 32 and the oil pump 31 are electrically connected to the control center. The rangefinder 32 sends the measured real-time data to the control center, and the control center controls the oil pump 31 to start according to the received real-time data, so as to pump the oil sludge in the accommodating cavity 21a from the lower side to the higher side.

[0065] Please combine Figures 2 to 5As shown, in some embodiments, at least the oil cup body 21 and the internal receiving cavity 21a are U-shaped, so as to form a hollow part 21b in the middle of the oil cup body 21. The oil pump 31 is located in the hollow part 21b to improve the overall space utilization of the oil cup 20 and avoid the situation where the oil cup 20 is too thick due to the addition of the oil cup 31, thereby affecting the wall mounting of the range hood body 10.

[0066] Please combine Figures 2 to 5 As shown, in some embodiments, the oil cup body 21 includes an outer shell 211, an upper wall 212 and a lower wall 213. The upper wall 212 and the lower wall 213 are both fixed to the outer shell 211 and are connected to each other to form a hollow portion 21b. The two side receiving cavities 21a1 are connected to each other on the upper and lower sides of the hollow portion 21b, so that the oil cup body 21 and the internal receiving cavity 21a are both O-shaped.

[0067] Please combine Figures 2 to 5 As shown, in some embodiments, the upper wall 212 includes two upper side walls 212a corresponding to the two side receiving cavities 21a1 respectively. The two upper side walls 212a are connected at the highest point of the upper wall 212, and the angle between each upper side wall 212a and the horizontal plane is in the range of 5° to 10°, so that after the oil enters the receiving cavity 21a through the opening, it can flow into the lower receiving cavity 21a in time under the guidance of the two upper side walls 212a.

[0068] The lower wall 213 includes two lower side walls 213a corresponding to the two side receiving cavities 21a1 respectively. The two upper side walls 212a are connected to each other at the lowest point of the lower wall 213. The angle between each lower side wall 213a and the horizontal plane is 0° to 5°. The angle between the lower side wall 213a and the horizontal plane facilitates the timely flow of oil when the oil cup 20 is poured. By controlling the angle to 0° to 5°, the bottom of the hollow part 21b is relatively flat and can be used as a platform for placing other items.

[0069] Please combine Figures 2 to 5 As shown, in some embodiments, the bottom surface of the outer casing 211 includes two side bottom surfaces corresponding to the two side receiving cavities 21a1 respectively. The two side bottom surfaces are connected at the lowest point of the bottom surface, and the angle between each side bottom surface and the horizontal plane is in the range of 15° to 20°, so that the oil can be collected at the bottom of the receiving cavity 21a. Even if there is little oil in the receiving cavity 21a, the oil pipe 311 can be inserted into the oil to ensure the normal operation of the oil pump 31.

[0070] In some embodiments, the distance between the bottom end of the oil pipe 311 and the bottom surface of its side is 5mm to 10mm to ensure that the oil pipe 311 can extend below the surface of the oil sludge, so that the oil pump can operate normally even when there is less oil sludge.

[0071] Preferably, an oil-degrading agent is pre-placed in the receiving cavity 21a so that the bottom end of the oil pipe 311 is below the liquid surface of the oil-degrading agent. The oil-degrading agent can ensure the normal operation of the oil pump 31 when there is less oil in the oil cup 20, and can also degrade the oil and generate phase in time to avoid odor.

[0072] Please combine Figures 2 to 5 As shown, in some embodiments, an oil leakage hole is provided at the connection position of the two side bottom surfaces, and a sealing plug 23 is detachably provided in the oil leakage hole. The user can remove the oil cup 20 to clean the oil stains as needed, or choose to remove the sealing plug 23 to drain the oil. The latter operation is relatively convenient.

[0073] Please combine Figures 2 to 5 As shown, in some embodiments, the receiving cavity 21a is divided into two side receiving cavities 21a1 with a vertical reference plane 100 as the center, and the oil cup 20 and the vibration damping assembly 30 are symmetrically arranged with the reference plane 100 as the center.

[0074] In some embodiments, the two hooks 22 are located at the two ends of the top of the oil cup body 21 away from the reference surface 100. The larger the distance between the two hooks 22, the more obvious the real-time distance change between the hooks 22 and the oil cup body 21 with vibration, so as to determine the direction of oil flow in the receiving cavity 21a.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for preventing vibration in an oil cup, comprising the following steps: a. When the range hood is turned on, two distance measuring devices detect the real-time distance h between the hook on their respective side and the range hood body at intervals t. l1 h r1 ,in, Time t is a preset parameter that varies with the range hood's power setting; the higher the power setting, the shorter the time t. l1 h represents the real-time distance between the left hook and the range hood body. r1 This refers to the real-time distance between the right-side hook and the range hood body. b. After each test, the measured real-time spacing h l1 h r1 With the initial spacing h l h r By making comparisons and using the comparison results and the flow direction correspondence table, the flow direction of oil in the oil cup receiving cavity can be obtained. c. The oil sludge in the containment cavity is transported to the opposite direction of the flow by an oil pump.

2. A range hood for implementing the oil cup vibration damping method according to claim 1, characterized in that, It includes the main body of the range hood (10), the oil cup (20), and the vibration damping components (30); The oil cup (20) includes an oil cup body (21) and two hooks (22) fixed to the oil cup body (21). The oil cup body (21) is hung on the range hood body (10) by the hooks (22). The oil cup body (21) has an upward-opening receiving cavity (21a). The receiving cavity (21a) is divided into two side receiving cavities (21a1) in the horizontal direction. The two hooks (22) correspond to the two side receiving cavities (21a1) in the vertical direction respectively. The vibration damping assembly (30) includes an oil pump (31) and two rangefinders (32). The two rangefinders (32) correspond to the two hooks (22) respectively, and the rangefinders (32) are fixed to the range hood body (10) or the oil cup (20) to measure the vertical distance between the hook (22) and the range hood body (10). The oil pump (31) is fixed to the oil cup body (21), and the two oil pipes (311) of the oil pump (31) are respectively connected to the two side accommodating cavities (21a1) for pumping oil between the two side accommodating cavities (21a1).

3. The range hood according to claim 2, characterized in that, At least part of the oil cup body (21) and the internal receiving cavity (21a) are U-shaped to form a hollow part (21b) in the middle of the oil cup body (21), and the oil pump (31) is located in the hollow part (21b).

4. The range hood according to claim 3, characterized in that, The oil cup body (21) includes an outer shell (211), an upper wall (212), and a lower wall (213). The upper wall (212) and the lower wall (213) are both fixed to the outer shell (211) and are connected to each other to form the hollow part (21b). The two side receiving cavities (21a1) are connected to each other on the upper and lower sides of the hollow part (21b) so that the oil cup body (21) and the internal receiving cavity (21a) are both O-shaped.

5. The range hood according to claim 4, characterized in that, The upper wall (212) includes two upper side walls (212a) corresponding to the two side receiving cavities (21a1) respectively. The two upper side walls (212a) are connected to each other at the highest point of the upper wall (212), and the angle between each upper side wall (212a) and the horizontal plane is 5° to 10°. The lower wall (213) includes two lower side walls (213a) corresponding to the two side receiving cavities (21a1) respectively. The two upper side walls (212a) are connected to each other at the lowest point of the lower wall (213), and the angle between each lower side wall (213a) and the horizontal plane is in the range of 0° to 5°.

6. The range hood according to claim 4, characterized in that, The bottom surface of the outer shell (211) includes two side bottom surfaces corresponding to the two side receiving cavities (21a1) respectively. The two side bottom surfaces are connected to each other at the lowest point of the bottom surface, and the included angle between each side bottom surface and the horizontal plane is 15° to 20°.

7. The range hood according to claim 6, characterized in that, The distance between the bottom end of the oil pipe (311) and the bottom surface of the side on which it is located is in the range of 5mm to 10mm.

8. The range hood according to claim 6, characterized in that, An oil leakage hole is provided at the connection position of the two side bottom surfaces, and a sealing plug (23) is detachably provided in the oil leakage hole.

9. The range hood according to any one of claims 2 to 8, characterized in that, The receiving cavity (21a) is divided into two side receiving cavities (21a1) with a vertical reference plane (100) as the center. The oil cup (20) and the vibration damping assembly (30) are symmetrically arranged with the reference plane (100) as the center.

10. The range hood according to claim 9, characterized in that, The two hooks (22) are located at the two ends of the top of the oil cup body (21) away from the reference surface (100).

Images