Range hood with concealable oil cup and control method thereof

Abstract

The present invention provides a range hood with a concealable oil cup and a control method, belonging to the technical field of kitchen appliances. The range hood with a concealable oil cup includes a housing, a fan, an oil cup, a rotating assembly, and a drive assembly. The housing includes a bottom plate with a notch; the fan is disposed within the housing, and a receiving chamber is formed between the bottom plate and the fan; the oil cup is disposed and concealed within the receiving chamber; one side of the rotating assembly is rotatably connected to the housing, and the other side is fixedly connected to the oil cup, used to drive the oil cup to rotate; one end of the drive assembly is hinged to the fan, and the other end is fixedly connected to the rotating assembly, used to drive the rotating assembly to move; the oil cup can move between the inside and outside of the receiving chamber through the notch under the drive of the rotating assembly. The oil cup of the present invention can be concealed in the receiving chamber, reducing the overall size of the machine, improving the appearance of the machine, avoiding the need for separate packaging of the oil cup, saving packaging costs, and also allowing the oil cup's oil storage level to be determined based on its state, effectively improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a range hood with a concealable oil cup and a control method thereof. Background Art

[0002] The oil cups on existing range hoods are fixed in a relatively fixed position and cannot move freely. They are categorized as either internal or external. Internal oil cups require opening the panel to remove and reinstall, making them inconvenient. External oil cups significantly increase the overall size of the range hood, directly affecting its overall appearance and increasing the complexity of both product design and production process design. Furthermore, the oil cups must be disassembled during packaging, increasing overall packaging size and cost.

[0003] In addition, the oil cup of the range hood is generally made of stainless steel and has no transparent window to observe the oil storage level, making it inconvenient to check the oil storage level. The user needs to take out the oil cup to check the oil storage level. There are also some plastic oil cups with a transparent window to observe the real-time oil storage level of the oil cup, but after using it for a period of time, oil stains will remain on the surface, making it difficult to see the actual oil storage level through the transparent window. Summary of the Invention

[0004] The present invention aims to provide a range hood with a concealable oil cup. The oil cup is concealed within the accommodating chamber. This reduces the overall dimensions of the range hood, improves its appearance, and significantly reduces the complexity of product design. Furthermore, during production and packaging, the oil cup does not need to be separately packaged, making packaging simpler, more convenient, and less costly. The drive assembly and the rotating assembly enable the oil cup to move between the interior and exterior of the accommodating chamber, and the oil cup rotates as the oil storage level increases, effectively enhancing the user experience.

[0005] The object of the present invention is to provide a control method for a range hood.

[0006] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, a range hood with a concealable oil cup is provided. The range hood with a concealable oil cup comprises:

[0008] The housing comprises a bottom plate, wherein the bottom plate is provided with a notch;

[0009] a fan disposed inside the housing, wherein a receiving cavity is formed between the bottom plate and the fan;

[0010] An oil cup is arranged and hidden in the accommodating cavity;

[0011] A rotating assembly, one side of which is rotatably connected to the housing and the other side of which is fixedly connected to the oil cup, for driving the oil cup to rotate;

[0012] A driving assembly, one end of which is hinged to the fan and the other end of which is fixed to the rotating assembly, for driving the rotating assembly to move;

[0013] Wherein, the oil cup can move between the inside and outside of the accommodating cavity through the gap under the drive of the rotating component.

[0014] According to one embodiment of the present invention, the housing further comprises:

[0015] A connecting plate, one end of which is fixed to the inner side surface of the base plate and is used for mounting the rotating assembly;

[0016] The rotating assembly comprises:

[0017] a rotating shaft, located between the bottom plate and the connecting plate, and fixedly connected to the connecting plate;

[0018] a rotating rod, one end of which is rotatably connected to the rotating shaft, and the other end of which passes through the connecting plate and is inserted into the accommodating cavity;

[0019] The connecting portion is connected between the rotating rod, the driving assembly and the oil cup.

[0020] According to one embodiment of the present invention, the connecting portion includes:

[0021] A hanging ear, one end of which is fixed to the rotating rod and the other end of which is hinged to the driving assembly;

[0022] a mounting block, one end of which is fixedly connected to the rotating rod and the other end of which is detachably connected to the oil cup, wherein a push block for connecting to the mounting block is provided on the inner side of the oil cup, a protrusion is provided on the end of the push block away from the oil cup, and a groove is provided on the mounting block corresponding to the protrusion; or a groove is provided on the end of the push block away from the oil cup, and a protrusion is provided on the mounting block corresponding to the groove;

[0023] The protrusion is inserted into the groove to achieve a detachable connection between the mounting block and the pushing block.

[0024] According to an embodiment of the present invention, the pushing block includes a connecting surface for mounting the protrusion, and the connecting surface and the bottom surface of the oil cup are arranged at an angle to facilitate taking and placing the oil cup.

[0025] According to one embodiment of the present invention, the method further comprises:

[0026] A control system is communicatively connected to the drive assembly and is used to control the movement of the drive assembly.

[0027] a liquid level sensor, one end of which is fixed to the bottom plate and the other end of which is inserted into the oil cup, for detecting in real time whether the oil accumulated in the oil cup is at the maximum liquid level;

[0028] The liquid level sensor is communicatively connected to the control system. When the liquid level sensor detects that the accumulated oil in the oil cup is at a maximum liquid level, the control system controls the movement of the drive assembly to push the oil cup to rotate out.

[0029] According to one embodiment of the present invention, the housing further comprises:

[0030] A baffle is rotatably connected to the end of the housing away from the rotating shaft and abuts against the outer periphery of the oil cup to cover the gap

[0031] A limiting member is provided between the baffle and the housing and is used to limit the rotation range of the baffle.

[0032] According to one embodiment of the present invention, the driving assembly includes

[0033] An electric push rod, one end of which is fixed to the outer periphery of the fan and the other end of which is hinged to the hanging ear;

[0034] A current sensor, used to detect the current of the electric push rod;

[0035] The electric push rod and the current sensor are respectively connected to the control system for communication, and when the current value detected by the current sensor is greater than or equal to a preset current threshold, the control system controls the electric push rod to stop. According to one embodiment of the present invention, the invention further includes:

[0036] A reset button is provided on the housing and connected to the control system so as to reset and rotate the oil cup from the outside of the accommodating cavity to the inside of the accommodating cavity.

[0037] According to one embodiment of the present invention, the method further comprises:

[0038] an angle sensor, disposed at the connection between the rotating rod and the rotating shaft and communicatively connected to the control system, for measuring the rotation angle of the rotating rod;

[0039] The rotation angle of the oil cup is equal to the rotation angle of the rotating rod, and the total rotation angle of the oil cup from the initial position to the preset maximum position is R, wherein 30°≤R≤90°.

[0040] According to one embodiment of the present invention, the device further includes a display module, which includes:

[0041] Angle progress bar, used to display the ratio of the angle measured by the angle sensor to R;

[0042] An oil storage progress bar, used to display the oil level in the oil cup;

[0043] Wherein, the oil storage progress bar corresponds to the angle progress bar.

[0044] According to one embodiment of the present invention, the free end of the connecting plate is connected to a guide plate, the guide plate is arranged at an angle to the bottom plate, and the side of the guide plate away from the connecting plate is inserted into the oil cup to guide the accumulated oil into the oil cup.

[0045] According to another aspect of the present invention, a range hood control method is provided, the range hood control method comprising:

[0046] The liquid level sensor detects in real time whether the accumulated oil in the oil cup has reached the maximum liquid level. When it is detected that the accumulated oil in the oil cup has reached the maximum liquid level, the control system controls the driving component to drive the rotating component to rotate, so as to push the oil cup out.

[0047] After the oil cup rotates, when the liquid level sensor detects that the accumulated oil in the oil cup has not reached a maximum liquid level, the oil cup stops rotating;

[0048] When the oil cup rotates to a preset maximum position and the liquid level sensor detects that the accumulated oil in the oil cup is at a maximum level, cleaning the oil cup;

[0049] The cleaned oil cup is reset so that the oil cup is hidden in the accommodating cavity.

[0050] According to one embodiment of the present invention, the method further comprises:

[0051] The current sensor detects the current of the electric push rod in real time and feeds back the signal to the control system. When the current of the electric push rod reaches a preset current threshold, the control system controls the electric push rod to stop moving. When the current of the electric push rod reaches the preset current threshold, the oil cup is at a predetermined maximum position.

[0052] According to one embodiment of the present invention, the method further comprises:

[0053] The angle sensor feeds back the rotation angle of the rotating rod in real time and displays it through the display module. The control system obtains the rotation angle of the rotating rod to obtain the rotation angle of the oil cup;

[0054] The display module further includes an oil storage progress bar, and the oil storage progress bar displays the percentage of the oil storage according to the rotation angle of the oil cup.

[0055] According to an embodiment of the present invention, the oil storage progress bar includes N display grids, the total rotation angle of the oil cup is R, and the rotation angle of the oil cup corresponding to the i-th display grid is r i , where r i ∈(R x(i-1) / N, R xi / N], where i=1,2,…N.

[0056] According to an embodiment of the present invention, the method further includes an automatic angle correction process, wherein:

[0057] When the oil storage amount of the oil cup reaches the maximum value, the control system automatically records the maximum angle value R' of the oil cup and updates the rotation angle of the oil cup corresponding to the display grid based on the relationship between the oil storage progress bar and the rotation angle of the oil cup to prevent distortion of the oil storage progress bar.

[0058] According to one embodiment of the present invention, the method further comprises:

[0059] After the oil cup is reset, the angle parameter in the angle sensor is cleared.

[0060] According to an embodiment of the present invention, the method further includes: when the oil cup rotates to the maximum position and the liquid level sensor detects the maximum liquid level of the oil cup, the control system issues an alarm to remind the user to clean the oil cup.

[0061] According to an embodiment of the present invention, the method further comprises: pressing a reset button to reset the cleaned oil cup.

[0062] An embodiment of the present invention has the following advantages or beneficial effects:

[0063] The range hood with a concealable oil cup and the range hood control method of the present invention, wherein the oil cup is hidden in the accommodating cavity, can, on the one hand, reduce the overall dimensions of the machine, improve the appearance of the machine, and greatly reduce the difficulty of product appearance design; on the other hand, during production and packaging, the oil cup does not need to be separately packaged, and packaging is simpler, more convenient, and less costly.

[0064] The oil cup can move between the inside and outside of the accommodating cavity, and the oil cup rotates as the oil storage amount increases. The present invention can judge the oil storage amount of the oil cup by the state of the oil cup, thereby effectively improving the user experience.

[0065] The position of the oil cup can be adjusted in real time through the drive component, the rotation component, the liquid level sensor and the control system. When the oil cup rotates to a preset maximum position and the liquid level sensor detects that the accumulated oil in the oil cup is at the maximum liquid level, the oil cup can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0067] Figure 1 FIG1 is a schematic diagram of a range hood with a hideable oil cup in an initial state of the oil cup according to an exemplary embodiment.

[0068] Figure 2 FIG1 is a schematic diagram of a range hood with a hideable oil cup according to an exemplary embodiment, with the oil cup partially opened.

[0069] Figure 3 The diagram is a schematic diagram showing a range hood with a concealable oil cup according to an exemplary embodiment, with the oil cup at a preset maximum position.

[0070] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0071] Figure 5 is a schematic diagram of a display module according to an exemplary embodiment.

[0072] Figure 6 is a flowchart showing a working process of a range hood according to an exemplary embodiment.

[0073] Figure 7 is a schematic diagram showing a range hood control method according to an exemplary embodiment.

[0074] Figure 8 FIG. 1 is a schematic diagram showing determination of a boundary of an oil cup according to an exemplary embodiment.

[0075] The description of the accompanying drawings is as follows:

[0076] 1. Shell; 11. Bottom plate; 111. Notch; 12. Connecting plate; 13. Baffle; 14. Guide plate; 100. Accommodating chamber; 2. Fan; 3. Oil cup; 4. Rotating assembly; 41. Rotating shaft; 42. Rotating rod; 43. Connecting part; 431. Hanging ear; 432. Mounting block; 5. Driving assembly; 51. Electric push rod; 6. Pushing block; 7. Liquid level sensor; 8. Angle sensor; 9. Display module; 91. Angle progress bar; 92. Oil storage progress bar. DETAILED DESCRIPTION

[0077] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0078] The terms "a", "an", "the", "" are used to indicate that there are one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0079] like Figures 1 to 7 As shown, Figure 1 A schematic diagram showing the initial state of the oil cup 3 of the range hood with a concealable oil cup provided by the present invention is shown. Figure 2 A schematic diagram of the range hood with a concealable oil cup provided by the present invention is shown, with the oil cup 3 partially opened. Figure 3 A schematic diagram showing the range hood with a concealable oil cup provided by the present invention, with the oil cup 3 at a preset maximum position. Figure 4 yes Figure 3 Enlarged view of point A in the middle. Figure 5 FIG. 1 shows a schematic diagram of a display module 9 provided by the present invention. Figure 6 The flowchart of the working process of the range hood with a concealable oil cup provided by the present invention is shown. Figure 7 A schematic diagram of the range hood control method provided by the present invention is shown.

[0080] A range hood with a concealable oil cup according to an embodiment of the present invention includes:

[0081] The housing 1 includes a bottom plate 11, wherein the bottom plate 11 is provided with a notch 111;

[0082] The fan 2 is disposed inside the housing 1, wherein an accommodating cavity 100 is formed between the bottom plate 11 and the fan 2;

[0083] The oil cup 3 is arranged and hidden in the accommodating cavity 100;

[0084] The rotating assembly 4 is rotatably connected to the housing 1 on one side and fixedly connected to the oil cup 3 on the other side, and is used to drive the oil cup 3 to rotate;

[0085] The driving assembly 5 has one end hinged to the fan 2 and the other end fixed to the rotating assembly 4, and is used to drive the rotating assembly 4 to move;

[0086] The oil cup 3 can be moved between the inside and outside of the accommodating cavity 100 through the notch 111 under the drive of the rotating assembly 4 .

[0087] The fan 2 is disposed inside the housing 1. A receiving chamber 100 is formed between the bottom plate 11 and the fan 2. An oil outlet is provided at the bottom of the fan 2. The oil outlet is connected to an oil guide assembly (not shown). In this embodiment, the oil guide assembly may be an oil guide pipe or an oil guide cup. The oil guide assembly connects the oil outlet and the oil cup to guide the accumulated oil discharged from the fan 2 into the oil cup 3.

[0088] In addition, the oil cup 3 has two different states, namely the initial state and the working state. When the oil cup 3 is in the initial position, the oil cup 3 is in the initial state. At this time, the oil cup 3 is hidden in the accommodating chamber 100; when the range hood is working, the oil cup 3 needs to be in the working state. At this time, the driving component 5 can drive the rotating component 4 to move, and the rotating component 4 can drive the oil cup 3 to rotate, so that part of the oil cup 3 is rotated out of the accommodating chamber 100, so that the oil cup 3 can be in the state to receive the accumulated oil discharged by the fan 2. As the working time of the range hood increases, the driving component 5 and the rotating component 4 can continue to drive the oil cup 3 to rotate out to receive more accumulated oil; when the oil cup 3 rotates to the maximum angle, the oil cup 3 is completely in the working state. Figure 3 , the top surface of the oil cup 3 is parallel to the bottom plate 11. When the oil accumulation in the oil cup 3 reaches a maximum, the user needs to remove the oil cup 3 from the rotating assembly 4, clean the accumulated oil, and install the cleaned oil cup 3 on the rotating assembly 4. At this time, the driving assembly 5 and the rotating assembly 4 can drive the oil cup 3 to return to its original position, that is, hide the oil cup 3 in the accommodating cavity 100.

[0089] In this application, the oil cup 3 is capable of moving between the inside and outside of the accommodating chamber 100, and the oil cup 3 rotates as the oil storage volume increases. This means that the oil cup 3 moves from being completely hidden to being completely outside the accommodating chamber 100, and the oil storage volume in the oil cup 3 increases from a small amount to a large amount. The more oil leaks out, the more oil is stored. This application can dynamically inform the user of the oil storage volume of the oil cup 3 in real time, effectively improving the user experience. Furthermore, in its initial state, the oil cup 3 is hidden within the accommodating chamber 100. This can, on the one hand, reduce the overall size of the device, improve its appearance, and greatly reduce the difficulty of product design. On the other hand, during production and packaging, the oil cup 3 does not need to be separately packaged, making packaging simpler, more convenient, and less costly. Finally, the oil cup 3 is detachably connected to the rotating assembly 4, resulting in a simple structure and easy installation and removal.

[0090] In a preferred embodiment of the present invention, the housing 1 further comprises:

[0091] A connecting plate 12, one end of which is fixed to the inner side of the bottom plate 11 and is used to install the rotating assembly 4;

[0092] The rotating assembly 4 includes:

[0093] The rotating shaft 41 is located between the bottom plate 11 and the connecting plate 12 and is fixed to the connecting plate 12;

[0094] The rotating rod 42 has one end rotatably connected to the rotating shaft 41 and the other end passing through the connecting plate 12 and inserted into the accommodating cavity 100;

[0095] The connecting portion 43 is connected between the rotating rod 42 , the driving assembly 5 and the oil cup 3 .

[0096] like Figure 4-5 As shown, one end of the connecting plate 12 is fixedly connected to the inner side surface of the base plate 11, the rotating shaft 41 is located between the base plate 11 and the connecting plate 12, and is fixed to the connecting plate 12, the rotating rod 42 is rotatably connected to the rotating shaft 41, and can rotate in a circle around the rotating shaft 41, the connecting portion 43 is connected between the rotating rod 42, the driving assembly 5 and the oil cup 3, and the rotating rod 42, the driving assembly 5 and the oil cup 3 can be connected through the connecting portion 43. First, the driving assembly 5 drives the rotating rod 42 to rotate through the connecting portion 43, and the rotating rod 42 drives the oil cup 3 to rotate.

[0097] In a preferred embodiment of the present invention, the connecting portion 43 includes:

[0098] The hanging ear 431 has one end fixed to the rotating rod 42 and the other end hinged to the driving assembly 5;

[0099] The mounting block 432 has one end fixedly connected to the rotating rod 42 and the other end detachably connected to the oil cup 3. A push block 6 is provided on the inner side of the oil cup 3 for connecting to the mounting block 432. The end of the push block 6 away from the oil cup 3 is provided with a protrusion, and the mounting block 432 is provided with a groove corresponding to the protrusion; alternatively, the end of the push block 6 away from the oil cup 3 is provided with a groove, and the mounting block 432 is provided with a protrusion corresponding to the groove.

[0100] The protrusion is inserted into the groove so that the mounting block 432 is detachably connected to the pushing block 6 .

[0101] In a preferred embodiment of the present invention, the pushing block 6 includes a connecting surface for mounting the protrusion, and the connecting surface and the bottom surface of the oil cup 3 are arranged at an angle to facilitate taking and placing the oil cup 3.

[0102] like Figure 4 As shown, one end of the hanging ear 431 is fixed to the rotating rod 42, and the other end is hinged to the driving assembly 5, so that the driving assembly 5 drives the rotating rod 42 to rotate through the hanging ear 431; one end of the mounting block 432 is fixed to the rotating rod 42, and the other end is detachably connected to the oil cup 3. When the rotating rod 42 rotates, it can drive the oil cup 3 connected to the mounting block 432 to rotate.

[0103] The pushing block 6 is fixed to the inside of the oil cup 3, and the protrusion on the upper part of the pushing block 6 corresponds to the groove on the mounting block 432. During installation, the oil cup 3 and the mounting block 432 can be quickly connected by simply inserting the protrusion into the groove, which is convenient and quick.

[0104] Furthermore, since the front sidewall of the oil cup 3 is provided with a front oil baffle flange facing inward, and the front oil baffle flange is arranged at an angle to the bottom of the oil cup 3, if the connecting surface is parallel to the bottom of the oil cup 3, when removing the oil cup 3, it must be pulled forward horizontally, and the front oil baffle flange of the oil cup 3 will easily collide with the bottom plate 11, resulting in an unsmooth removal of the oil cup 3. However, when the connecting surface is arranged at an angle to the bottom of the oil cup 3, especially when the angle between the connecting surface and the bottom of the oil cup 3 is equal to the angle between the front oil baffle flange and the bottom of the oil cup 3, the oil cup 3 can be removed smoothly along the direction of the inclined surface where the front oil baffle flange is located. In a preferred embodiment of the present invention, it also includes:

[0105] The control system is communicatively connected to the drive assembly 5 and is used to control the movement of the drive assembly 5 .

[0106] The liquid level sensor 7 has one end fixed to the bottom plate 11 and the other end inserted into the oil cup 3 for measuring the liquid level of the oil cup 3;

[0107] The liquid level sensor 7 is communicatively connected to the control system. When the liquid level sensor 7 detects the maximum liquid level of the oil cup 3 , the control system controls the driving component 5 to move so as to push the oil cup 3 to rotate out.

[0108] like Figure 4 、 6 As shown in Figure 7, after the range hood is powered on, the program runs. During use, oil smoke adheres to the inner surface of fan 2 and condenses into oil droplets. The resulting oil flow gradually back to the bottom of fan 2 through various channels. The accumulated oil at the bottom of fan 2 overflows and flows into oil cup 3. Liquid level sensor 7 monitors the liquid level in oil cup 3 in real time and feeds the level signal back to the control system. In this embodiment, the control system can be an electronic control board.

[0109] As the oil storage volume of the oil cup 3 gradually increases, when the accumulated oil in the oil cup 3 reaches the position of the liquid level sensor 7, that is, when it is at the maximum liquid level, the liquid level sensor 7 sends a positive feedback signal to the electronic control board, and the control system controls the movement of the drive component 5. The drive component 5 drives the oil cup 3 to rotate clockwise through the rotating component 4. During the rotation process of the oil cup 3, the liquid level of the oil cup 3 will gradually move away from the liquid level sensor 7, that is, away from the maximum liquid level. When the liquid level in the oil cup 3 moves away from the sensing detection range of the liquid level sensor 7, the liquid level sensor 7 immediately stops feeding back positive signals. When the electronic control board cannot receive the positive feedback signal, the drive component stops. Component 5 immediately stops moving, and oil cup 3 also stops rotating, continuing to collect accumulated oil. When liquid level sensor 7 again detects that the liquid level in oil cup 3 is at its maximum, the electronic control board again controls drive assembly 5 to drive rotation assembly 4 to rotate oil cup 3. When oil cup 3 rotates to the point where the liquid level sensor 7 can no longer detect the liquid level in oil cup 3, oil cup 3 stops rotating. This cycle repeats until oil cup 3 reaches its predetermined maximum position and liquid level sensor 7 detects that the accumulated oil in oil cup 3 is at its maximum level, indicating that the oil level in oil cup 3 has reached its maximum level and that oil cup 3 needs to be cleaned. Furthermore, the position of liquid level sensor 7 represents the maximum level of oil cup 3. When liquid level sensor 7 detects accumulated oil in oil cup 3, it indicates that the oil level in oil cup 3 has reached its maximum level. Liquid level sensor 7 sets the detection signal as a positive feedback signal and feeds it back to the control system. As long as the control system receives the positive feedback signal, it can determine that the accumulated oil in oil cup 3 has reached its maximum level, making it easier to determine. The present application utilizes the cooperation of the liquid level sensor 7, the control system, the drive assembly 5, and the rotating assembly 4 to not only detect the liquid level status of the oil cup 3 in real time, but also enables the oil cup 3 to rotate while collecting accumulated oil. The more accumulated oil is collected, the more oil cup 3 leaks out. In this way, the amount of oil stored in the oil cup 3 can be determined based on the amount of oil leakage from the oil cup 3.

[0110] In a preferred embodiment of the present invention, the housing 1 further comprises:

[0111] The baffle 13 is rotatably connected to the end of the housing 1 away from the rotating shaft 41 and abuts against the outer periphery of the oil cup 3 to cover the gap 111;

[0112] The limiting member is provided between the baffle 13 and the housing 1 and is used to limit the rotation range of the baffle 13 .

[0113] like Figure 1-4As shown, the baffle 13 is arranged on the rear side of the shell 1, and the front side of the baffle 13 abuts against the outer periphery of the oil cup 3. When the oil cup 3 is hidden in the accommodating chamber 100, the baffle 13 can completely cover the gap 111 to prevent dust from entering the interior of the device; the baffle 13 is rotatably connected to the shell 1, so it can rotate with the rotation of the oil cup 3. When the oil cup 3 is completely rotated out of the accommodating chamber 100 and reaches a preset maximum position, at this time, the baffle 13 is parallel to the rear side of the shell 1 and is locked by the limit member. The baffle 13 can prevent the oil cup 3 from continuing to rotate clockwise. The limit member in this embodiment can be a retaining ring, or other limit springs, as long as it can limit the position of the baffle 13, the present invention is not limited here.

[0114] In a preferred embodiment of the present invention, the drive assembly 5 comprises:

[0115] The electric push rod 51 has one end fixed to the outer periphery of the fan 2 and the other end hinged to the hanging ear 431;

[0116] A current sensor, used to detect the current of the electric push rod 51;

[0117] The electric push rod 51 and the current sensor are respectively connected to the control system for communication. When the current value detected by the current sensor is greater than or equal to a preset current threshold, the control system controls the electric push rod 51 to stop.

[0118] like Figure 1-4 As shown in Figure 6, one end of the electric push rod 51 is fixed to the outer periphery of the fan 2, and the other end is hinged to the hanging ear 431. The electric push rod 51 extends to push the rotating rod 42 to rotate and then drive the oil cup 3 to rotate. The current sensor detects the current of the electric push rod 51 in real time and transmits the current signal to the control system. When the current value detected by the current sensor in real time is greater than or equal to the preset current threshold, it indicates that the oil cup 3 has reached the preset maximum position. Since the oil cup 3 is blocked by the baffle 13 and cannot continue to rotate, the electric push rod 51 The oil cup 3 cannot be pushed. If the electric push rod 51 continues to push the oil cup 3, the current value of the electric push rod 51 will increase sharply. Therefore, when the current value of the electric push rod 51 is greater than or equal to the preset current threshold, the electric push rod 51 is stopped from moving, so that the oil cup 3 remains in the preset maximum position, that is, the oil cup 3 is completely rotated to the outside of the accommodating cavity 100, and the bottom of the oil cup 3 is parallel to the bottom plate 11. When the liquid level of the oil cup 3 reaches the maximum liquid level again, it means that the oil storage capacity of the oil cup 3 has reached the maximum value and the oil cup needs to be cleaned.

[0119] In a preferred embodiment of the present invention, it also includes:

[0120] The reset button is provided on the housing 1 and is connected to the control system so as to reset and rotate the oil cup 3 from the outside of the accommodating chamber 100 to the inside of the accommodating chamber 100 .

[0121] like Figure 1-4As shown in Figure 6, the control system will issue a reminder when the oil cup 3 needs to be cleaned. At this time, the oil cup 3 can be removed from the rotating assembly 4 and cleaned, and the cleaned oil cup 3 can be installed again on the rotating assembly 4. The present application sets a reset button to quickly restore the cleaned oil cup 3 to its initial position. The specific process is: the reset button transmits the reset signal to the control system, and the control system controls the electric push rod 51 to pull back the rotating rod 4 to move counterclockwise, and drive the outer part of the oil cup 3 to reset and rotate to the inside of the accommodating cavity 100 to achieve the hiding of the oil cup 3.

[0122] In a preferred embodiment of the present invention, it also includes:

[0123] An angle sensor 8 is provided at the connection between the rotating rod 42 and the rotating shaft 41 and is communicatively connected to the control system for measuring the rotation angle of the rotating rod 42;

[0124] The rotation angle of the oil cup 3 is equal to the rotation angle of the rotating rod 42. The total rotation angle of the oil cup 3 from the initial position to the preset maximum position is R, wherein 30°≤R≤90°

[0125] The display module 9 includes:

[0126] An angle progress bar 91, used to display the ratio of the angle measured by the angle sensor 8 to R;

[0127] The oil storage progress bar 92 is used to display the oil level in the oil cup 3;

[0128] The oil storage progress bar 92 corresponds to the angle progress bar 91 .

[0129] like Figure 5-6 As shown, the angle sensor 8 is used to measure the rotation angle of the rotating rod 42. Since the rotating rod 42 is rotatably connected to the rotating shaft 41 and the rotating rod 42 is fixedly connected to the oil cup 3, the rotating rod 42 and the oil cup 3 both perform circular motion around the rotating shaft 41, and the angle rotated by the rotating rod 42 is equal to the angle rotated by the oil cup 3. In this application, the initial position is the position where the oil cup 3 is just completely hidden in the accommodating cavity 100. The predetermined maximum position of the oil cup 3 is when the oil cup 3 is completely outside the accommodating cavity 100 and the bottom of the oil cup 3 is parallel to the bottom plate 11. At this time, the oil cup 3 can reach a full oil state, where 30°≤R≤90°, preferably 45°, 60°, 70°, and 85°. On the one hand, the structure of the oil cup 3 is easier to design, and the electric push rod 51 can realize the rotation of the oil cup 3 from the initial position to the preset maximum position within a smaller stroke range. On the other hand, it can prevent the accumulated oil in the oil cup 3 at the initial position from overflowing.

[0130] The present application uses the display module 9 to correspond the rotation angle of the oil cup 3 and the oil storage amount. For example, the total rotation angle R of the oil cup 3 is divided into the following: Figure 5 The five stages shown in the figure correspond to five grids in the oil storage progress bar 92 of the oil cup 3. When the rotation angle of the oil cup 3 is within the range of 0-20%R, the oil storage progress bar 92 displays one grid; when the rotation angle of the oil cup 3 is within the range of 21-40%R, the oil storage progress bar 92 displays two grids; when the rotation angle of the oil cup 3 is within the range of 41-60%R, the oil storage progress bar 92 displays three grids; when the rotation angle of the oil cup 3 is within the range of 61-80%R, the oil storage progress bar 92 displays four grids; when the rotation angle of the oil cup 3 is within the range of 81-100%R, the oil storage progress bar 92 displays five grids. The corresponding relationship is as follows: Figure 5 The oil cup rotation measured by the angle sensor is displayed on the corresponding oil storage progress display. Of course, the oil storage progress can also be divided into 3, 4, 5, 10, or 20 levels, as long as it can display the angle measured by the angle sensor and the oil storage level of the oil cup 3.

[0131] In a preferred embodiment of the present invention, the free end of the connecting plate 12 is connected to a guide plate 14 , which is arranged at an angle to the bottom plate 11 , and the side of the guide plate 14 away from the connecting plate 12 is inserted into the oil cup 3 to guide the accumulated oil into the oil cup 3 .

[0132] like Figure 1-4 As shown, one end of the connecting plate 12 is fixedly connected to the bottom plate 11, and the free end of the connecting plate 12 is connected to the guide plate 14. The guide plate 14 is arranged to be tilted downward, that is, the guide plate 14 extends along the free end of the connecting plate 12 toward the middle of the oil cup 3. This not only prevents the accumulated oil from falling from between the oil cup 3 and the bottom plate 11 to the outside of the housing 1, but also allows the accumulated oil falling on the guide plate 14 to enter the oil cup 3, thereby achieving the effect of guiding oil and preventing oil leakage.

[0133] like Figures 5 to 7 As shown, Figure 5 FIG. 1 shows a schematic diagram of a display module 9 provided by the present invention. Figure 6 The flowchart of the working process of the range hood with a concealable oil cup provided by the present invention is shown. Figure 7 A schematic diagram of the range hood control method provided by the present invention is shown. Figure 8 A schematic diagram showing the boundary determination of the oil cup 3 provided by the present invention is shown.

[0134] The control method of the range hood according to the embodiment of the present invention includes:

[0135] The liquid level sensor 7 detects in real time whether the accumulated oil in the oil cup 3 has reached the maximum liquid level. When it is detected that the accumulated oil in the oil cup 3 has reached the maximum liquid level, the control system controls the driving component 5 to drive the rotating component 4 to rotate, so as to push the oil cup 3 out.

[0136] After the oil cup 3 rotates, when the liquid level sensor 7 detects that the accumulated oil in the oil cup 3 has not reached the maximum liquid level, the rotation of the oil cup 3 is stopped;

[0137] When the oil cup 3 rotates to the preset maximum position and the liquid level sensor 7 detects that the accumulated oil in the oil cup 3 is at the maximum liquid level, the oil cup 3 is cleaned;

[0138] The cleaned oil cup 3 is reset so that the oil cup 3 is hidden in the accommodating cavity 100 .

[0139] The program runs after the range hood is powered on (referred to as "installed and powered on" in short). During use, oil smoke adheres to the inner surface of fan 2 and condenses into oil droplets. The resulting oil flow gradually back to the bottom of fan 2 through various channels. The accumulated oil at the bottom of fan 2 overflows and flows into oil cup 3. Liquid level sensor 7 monitors the liquid level in oil cup 3 in real time and feeds the level signal back to the control system. In this embodiment, the control system can be an electronic control board.

[0140] As the oil storage volume of the oil cup 3 gradually increases, when the accumulated oil in the oil cup 3 reaches the position of the liquid level sensor 7, that is, when it is at the maximum liquid level, the liquid level sensor 7 sends a positive feedback signal to the electronic control board, and the control system controls the movement of the drive component 5. The drive component 5 drives the oil cup 3 to rotate clockwise through the rotating component 4. During the rotation process of the oil cup 3, the liquid level of the oil cup 3 will gradually move away from the liquid level sensor 7, that is, away from the maximum liquid level. When the liquid level in the oil cup 3 moves away from the sensing detection range of the liquid level sensor 7, the liquid level sensor 7 immediately stops feeding back positive signals. When the electronic control board cannot receive the positive feedback signal, the drive component stops. Component 5 immediately stops moving, and oil cup 3 also stops rotating, continuing to collect accumulated oil. When liquid level sensor 7 again detects that the liquid level in oil cup 3 is at its maximum, the electronic control board again controls drive assembly 5 to drive rotation assembly 4 to rotate oil cup 3. When oil cup 3 rotates to the point where the liquid level sensor 7 can no longer detect the liquid level in oil cup 3, oil cup 3 stops rotating. This cycle repeats until oil cup 3 reaches its predetermined maximum position and liquid level sensor 7 detects that the accumulated oil in oil cup 3 is at its maximum level, indicating that the oil level in oil cup 3 has reached its maximum level and that oil cup 3 needs to be cleaned. Furthermore, the position of liquid level sensor 7 represents the maximum level of oil cup 3. When liquid level sensor 7 detects accumulated oil in oil cup 3, it indicates that the oil level in oil cup 3 has reached its maximum level. Liquid level sensor 7 sets the detection signal as a positive feedback signal and feeds it back to the control system. As long as the control system receives the positive feedback signal, it can determine that the accumulated oil in oil cup 3 has reached its maximum level, making it easier to determine. The present application not only detects the liquid level status of the oil cup 3 in real time through the cooperation of the liquid level sensor 7, the control system, the drive assembly 5, and the rotating assembly 4, but also enables the oil cup 3 to rotate while collecting accumulated oil; the more accumulated oil is collected, the more the oil cup 3 leaks out, so the amount of oil stored in the oil cup 3 can be judged according to the size of the part of the oil cup 3 that is rotated out, which is more intelligent and convenient.

[0141] In a preferred embodiment of the present invention, it also includes:

[0142] The current sensor detects the current of the electric push rod 51 in real time and feeds back the signal to the control system. When the current of the electric push rod 51 reaches the preset current threshold, the control system controls the electric push rod 51 to stop moving. When the current of the electric push rod 51 reaches the preset current threshold, the oil cup 3 is at a predetermined maximum position.

[0143] like Figure 7As shown, one end of the electric push rod 51 is fixed to the outer periphery of the fan 2, and the other end is hinged to the hanging ear 431. The electric push rod 51 extends to push the rotating rod 42 to rotate and then drive the oil cup 3 to rotate. The current sensor detects the current of the electric push rod 51 in real time and transmits the current signal to the control system. When the current value detected by the current sensor in real time is greater than or equal to the preset current threshold, it indicates that the oil cup 3 has reached the preset maximum position. Since the oil cup 3 is blocked by the baffle 13 at this time and cannot be further rotated out, the electric push rod 51 has no If the electric push rod 51 continues to push the oil cup 3, the current value of the electric push rod 51 will increase sharply. Therefore, when the current value of the electric push rod 51 is greater than or equal to the preset current threshold, the electric push rod 51 stops moving, so that the oil cup 3 remains in the preset maximum position, that is, the oil cup 3 is fully rotated to the outside of the accommodating cavity 100, and the bottom of the oil cup 3 is parallel to the bottom plate 11. When the liquid level of the oil cup 3 reaches the maximum level again, it indicates that the oil storage capacity of the oil cup 3 has reached the maximum value and the oil cup needs to be cleaned. Therefore, the preset current threshold of the electric push rod 51 can be used to determine whether the oil cup 3 is in the predetermined maximum position, which is a quick and convenient method.

[0144] In a preferred embodiment of the present invention, it also includes:

[0145] The angle sensor 8 provides real-time feedback of the rotation angle of the rotating rod 42 and displays it through the display module 9. The control system obtains the rotation angle of the rotating rod 42 to obtain the rotation angle of the oil cup 3.

[0146] The display module 9 further includes an oil storage progress bar 92 , which displays the percentage of the oil storage according to the rotation angle of the oil cup 3 .

[0147] The oil storage progress bar 92 includes N display grids. The total rotation angle of the oil cup 3 is R, wherein the rotation angle of the oil cup 3 corresponding to the i-th display grid is r. i , where r i ∈(R x(i-1) / N, R xi / N], where i=1,2,…N.

[0148] like Figure 5-6 As shown, the angle sensor 8 is used to measure the rotation angle of the rotating rod 42. Since the rotating rod 42 is rotatably connected to the rotating shaft 41 and the rotating rod 42 is fixedly connected to the oil cup 3, the rotating rod 42 and the oil cup 3 both perform circular motion around the rotating shaft 41, and the angle rotated by the rotating rod 42 is equal to the angle rotated by the oil cup 3. In this application, the initial position is the position where the oil cup 3 is just completely hidden in the accommodating cavity 100. The predetermined maximum position of the oil cup 3 is when the oil cup 3 is completely outside the accommodating cavity 100 and the bottom of the oil cup 3 is parallel to the bottom plate 11. At this time, the oil cup 3 can reach a full oil state.

[0149] The oil storage progress bar 92 includes N display grids. The total rotation angle of the oil cup 3 is R, wherein the rotation angle of the oil cup 3 corresponding to the i-th display grid is r. i , where r i ∈(R x(i-1) / N, R xi / N], where i=1, 2, ... N. In this way, in different rotation ranges, the number of oil storage progress bar 92 displayed is supplemented with the figure. Figure 5 For example, if the total rotation angle R of the oil cup 3 is divided into 5 stages, the oil storage progress bar 92 of the oil cup 3 also corresponds to 5 grids. When the rotation angle of the oil cup 3 is within the range of 0-20%R, the oil storage progress bar 92 displays one grid; when the rotation angle of the oil cup 3 is within the range of 21-40%R, the oil storage progress bar 92 displays two grids; when the rotation angle of the oil cup 3 is within the range of 41-60%R, the oil storage progress bar 92 displays three grids; when the rotation angle of the oil cup 3 is within the range of 61-80%R, the oil storage progress bar 92 displays four grids; when the rotation angle of the oil cup 3 is within the range of 81-100%R, the oil storage progress bar 92 displays five grids. The corresponding relationship is as follows: Figure 5 The oil cup rotation amount measured by the angle sensor 8 is correlated with the oil level progress display. Of course, the oil level progress can also be divided into 3, 4, 5, 10, or 20 levels. As long as the angle measured by the angle sensor 8 and the oil level of the oil cup 3 can be displayed and the rotation angle of the oil cup 3 and the oil level are correlated, the oil level status of the oil cup 3 can be quickly obtained from the display module 9.

[0150] In a preferred embodiment of the present invention, it also includes an automatic angle correction process, wherein:

[0151] When the oil storage volume of the oil cup 3 reaches its maximum value, the control system automatically records the maximum angle value R' of the oil cup 3 and updates the corresponding rotation angle of the oil cup 3 in the display grid according to the relationship between the oil storage volume progress bar 92 and the rotation angle of the oil cup 3 to prevent distortion of the oil storage volume progress bar 92.

[0152] The method further includes: after the oil cup 3 is reset, the angle parameter in the angle sensor 8 is cleared.

[0153] like Figure 5-6As shown, variations in machine assembly process parameters, or angle variations caused by various interferences or oil condensation resistance after a period of use, can cause the rotation angle of oil cup 3 to mismatch with the oil level progress bar 92, leading to discrepancies in the displayed information. Therefore, an automatic correction function is required. In the program settings, each time the oil cup 3 is installed and retracted, the rotation angle parameters of angle sensor 8 are reset. The control system automatically records the maximum angle value R' of the oil cup 3 and refreshes the total rotation angle value. Then, based on the relationship between the oil level progress bar 92 and the rotation angle of the oil cup 3, the displayed grid is updated to reflect the rotation angle of the oil cup 3. This prevents distortion of the oil level progress bar 92 and improves the user experience.

[0154] In a preferred embodiment of the present invention, the control system further includes: when the oil cup 3 rotates to the maximum position and the liquid level sensor 7 detects the maximum liquid level of the oil cup 3, the control system issues an alarm to remind the user to clean the oil cup 3.

[0155] The method further includes: pressing a reset button to reset the cleaned oil cup 3 .

[0156] like Figure 6 As shown, in the present application, when the oil cup 3 is rotated out to the maximum position and the liquid level sensor 7 detects the maximum liquid level of the oil cup 3, that is, when the oil cup 3 is in a full oil state, the control system issues a cleaning alarm, and by pressing the reset button, the control system can control the push rod 51 to retract and pull the rotating rod 42 to rotate, thereby driving the oil cup 3 to rotate from the outside of the accommodating chamber 100 into the inside of the accommodating chamber 100, so that the cleaned oil cup 3 can be quickly restored to its initial position, thereby improving the intelligence of the equipment and improving the user experience.

[0157] In a preferred embodiment of the present invention, the method further comprises: determining the size of the oil cup 3;

[0158] like Figure 8 As shown, because the oil cup 3 can enter the interior of the accommodating cavity 100 through the notch 111, it is constrained by the internal dimensions of the shell 1 and cannot be arbitrarily designed in size and shape. The oil cup 3 needs to be defined based on the movement trajectory of the oil cup 3 and the internal boundaries of the shell 1, especially the width of the notch 111. That is, any point on the oil cup 3 is located within the range of the notch 111 when it rotates around the rotation axis 41.

[0159] In addition, the first thing that can be determined is the distance between the rotating shaft 41 of the oil cup 3 and the back of the shell 1. The distance between the rotating shaft 41 and the rear side plate of the shell 1 is the maximum radius R of the motion trajectory of the oil cup 3, that is, the maximum external dimension of the oil cup 3. Figure 8The left picture shows the "initial state of oil cup 3". You can see a boundary condition: when the oil cup 3 is fully retracted, the lowest side line of the oil cup 3 (defined here as line a) must be completely wrapped above the right horizontal line of the shaft 41. The top surface of the oil cup 3 and the boundary on the other side are selected within the maximum motion trajectory. Figure 8 The figure on the right shows "oil cup 3 at the predetermined maximum position." You can see another boundary condition: when the oil cup 3 is fully open, the highest top surface line of the oil cup 3 must be completely wrapped below the right horizontal line of the rotating fixed axis.

[0160] Comprehensive maximum motion radius R and Figure 8 Based on the two boundary conditions in the figure, it can be concluded that the design size coverage of the oil cup 3 is within the first quadrant of the circular boundary with the plane coordinates centered on the shaft 41 and the distance from the shaft 41 to the rear side plate of the housing 1 as the radius R. The design size coverage of the oil cup 3 is shown in Figure 8 In the middle shaded area, the outer dimensions of the oil cup 3 only need to fall within the coverage range. Figure 8 The oil cup 3 within the middle shaded area is merely a design example for the convenience of explanation and description and is not intended to limit the present invention.

[0161] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0162] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0163] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0164] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A range hood with a concealable oil cup, characterized in that: include: The housing (1) comprises a bottom plate (11), wherein the bottom plate (11) is provided with a notch (111); A fan (2) is arranged inside the housing (1), wherein an accommodating cavity (100) is formed between the bottom plate (11) and the fan (2); An oil cup (3) is arranged and hidden in the accommodating cavity (100); A rotating assembly (4), one side of which is rotatably connected to the housing (1) and the other side of which is fixedly connected to the oil cup (3), and is used to drive the oil cup (3) to rotate; A driving assembly (5), one end of which is hinged to the fan (2) and the other end of which is fixed to the rotating assembly (4), and is used to drive the rotating assembly (4) to move; Wherein, the oil cup (3) can be moved between the inside and outside of the accommodating cavity (100) through the notch (111) under the drive of the rotating assembly (4); A control system, communicatively connected to the drive assembly (5), for controlling the movement of the drive assembly (5); A liquid level sensor (7), one end of which is fixed to the bottom plate (11) and the other end of which is inserted into the oil cup (3), for detecting in real time whether the accumulated oil in the oil cup (3) is at a maximum liquid level; The liquid level sensor (7) is communicatively connected to the control system. When the liquid level sensor (7) detects that the accumulated oil in the oil cup (3) is at the maximum liquid level, the control system controls the driving component (5) to move so as to push the oil cup (3) to rotate out. During the rotation of the oil cup (3), the liquid level of the oil cup (3) will gradually move away from the liquid level sensor (7), that is, away from the maximum liquid level. When the liquid level in the oil cup (3) moves away from the sensing detection range of the liquid level sensor (7), the driving component (5) stops moving immediately, and the oil cup (3) also stops rotating at the same time and continues to collect the accumulated oil. An angle sensor (8), disposed at the connection between the rotating rod (42) and the rotating shaft (41), and communicatively connected to the control system, for measuring the rotation angle of the rotating rod (42); The rotation angle of the oil cup (3) is equal to the rotation angle of the rotating rod (42), and the total rotation angle of the oil cup (3) from the initial position to the preset maximum position is R, wherein 30°≤R≤90°; It also includes a display module (9), which includes: An angle progress bar (91) for displaying the ratio of the angle measured by the angle sensor (8) to R; An oil storage progress bar (92) for displaying the oil level in the oil cup (3); The oil storage progress bar (92) corresponds to the angle progress bar (91).

2. The range hood with a concealable oil cup according to claim 1, characterized in that: The housing (1) further comprises: A connecting plate (12), one end of which is fixed to the inner side surface of the bottom plate (11) and is used for mounting the rotating assembly (4); The rotating assembly (4) comprises: A rotating shaft (41) is located between the bottom plate (11) and the connecting plate (12), and is fixedly connected to the connecting plate (12); A rotating rod (42), one end of which is rotatably connected to the rotating shaft (41), and the other end of which passes through the connecting plate (12) and is inserted into the accommodating cavity (100); The connecting portion (43) is connected between the rotating rod (42), the driving assembly (5) and the oil cup (3).

3. The range hood with a concealable oil cup according to claim 2, characterized in that: The connecting portion (43) includes: A hanging ear (431), one end of which is fixed to the rotating rod (42) and the other end of which is hinged to the driving assembly (5); A mounting block (432) is fixedly connected to the rotating rod (42) at one end and detachably connected to the oil cup (3) at the other end, wherein a push block is provided on the inner side of the oil cup (3) for connecting to a push block (6) of the mounting block (432), a protrusion is provided on the end of the push block (6) away from the oil cup (3), and the mounting block (432) is provided with a groove corresponding to the protrusion; or a groove is provided on the end of the push block (6) away from the oil cup (3), and the mounting block (432) is provided with a protrusion corresponding to the groove; The protrusion is snapped into the groove to achieve a detachable connection between the mounting block (432) and the pushing block (6).

4. The range hood with a concealable oil cup according to claim 3, characterized in that: The pushing block (6) comprises a connecting surface for mounting the protrusion, and the connecting surface and the bottom surface of the oil cup (3) are arranged at an angle to facilitate taking and placing the oil cup (3).

5. The range hood with a concealable oil cup according to claim 1, characterized in that: The housing (1) further comprises: A baffle (13) is rotatably connected to an end of the housing (1) away from the rotating shaft (41) and abuts against the outer periphery of the oil cup (3) for shielding the notch (111); A limiting member is provided between the baffle (13) and the housing (1) and is used to limit the rotation range of the baffle (13).

6. The range hood with a concealable oil cup according to claim 3, characterized in that: The driving assembly (5) comprises: An electric push rod (51), one end of which is fixed to the outer periphery of the fan (2) and the other end of which is hinged to the hanging ear (431); A current sensor, used for detecting the current of the electric push rod (51); The electric push rod (51) and the current sensor are respectively communicatively connected to the control system, and when the current value detected by the current sensor is greater than or equal to a preset current threshold, the control system controls the electric push rod (51) to stop.

7. The range hood with a concealable oil cup according to claim 1, characterized in that: Also includes: A reset button is provided on the housing (1) and is connected to the control system so as to reset and rotate the oil cup (3) from the outside of the accommodating chamber (100) to the inside of the accommodating chamber (100).

8. The range hood with a concealable oil cup according to claim 2, characterized in that: The free end of the connecting plate (12) is connected to a guide plate (14), the guide plate (14) being arranged at an angle to the bottom plate (11), and the side of the guide plate (14) away from the connecting plate (12) being inserted into the oil cup (3) to guide the accumulated oil into the oil cup (3).

9. A range hood control method for a range hood with a concealable oil cup according to any one of claims 1 to 8, characterized in that: include: The liquid level sensor (7) detects in real time whether the accumulated oil in the oil cup (3) has reached the maximum liquid level, and when it is detected that the accumulated oil in the oil cup (3) has reached the maximum liquid level, the control system controls the driving component (5) to drive the rotating component (4) to rotate, so as to push the oil cup (3) out; After the oil cup (3) rotates, when the liquid level sensor (7) detects that the accumulated oil in the oil cup (3) has not reached the maximum liquid level, the rotation of the oil cup (3) is stopped; When the oil cup (3) rotates to a preset maximum position and the liquid level sensor (7) detects that the accumulated oil in the oil cup (3) is at the maximum liquid level, the oil cup (3) is cleaned; Resetting the cleaned oil cup (3) so that the oil cup (3) is hidden in the accommodating cavity (100); The angle sensor (8) feeds back the rotation angle of the rotating rod (42) in real time and displays it through the display module (9). The control system obtains the rotation angle of the rotating rod (42) to obtain the rotation angle of the oil cup (3); wherein the display module (9) further includes an oil storage progress bar (92), and the oil storage progress bar (92) displays the percentage of the oil storage according to the rotation angle of the oil cup (3); The oil storage progress bar (92) includes N display grids, and the total rotation angle of the oil cup (3) is R, wherein the rotation angle of the oil cup (3) corresponding to the i-th display grid is r i , where r i ∈(R x (i-1) / N, R xi / N], where i=1,2,…N.

10. The range hood control method according to claim 9, characterized in that: Also includes: The current sensor detects the current of the electric push rod (51) in real time and feeds back the signal to the control system. When the current of the electric push rod (51) reaches a preset current threshold, the control system controls the electric push rod (51) to stop moving. When the current of the electric push rod (51) reaches the preset current threshold, the oil cup (3) is at a predetermined maximum position.

11. The range hood control method according to claim 9, characterized in that: Also included is an automatic angle correction process, where When the oil storage amount of the oil cup (3) reaches a maximum value, the control system automatically records the maximum angle value R' of the oil cup (3), and updates the rotation angle of the oil cup (3) corresponding to the display grid according to the relationship between the oil storage amount progress bar (92) and the rotation angle of the oil cup (3).

12. The range hood control method according to claim 9, characterized in that: Also includes: After the oil cup (3) is reset, the angle parameter in the angle sensor (8) is cleared.

13. The range hood control method according to claim 9, characterized in that: Also includes: When the oil cup (3) rotates to the maximum position and the liquid level sensor (7) detects the maximum liquid level of the oil cup (3), the control system issues an alarm to remind the user to clean the oil cup (3).

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