Oil cup liquid level detection device

Abstract

The utility model provides an oil cup liquid level detection device, relates to the field of range hood equipment, is applied to an oil cup, and comprises a lifting rod, a fan, a lifting driving assembly, a rotation driving assembly, a detection assembly and a control system. The fan is connected with the lifting rod, the lifting rod is used for driving the fan to move, the lifting driving assembly is electrically connected with the lifting rod, the rotation driving assembly is electrically connected with the fan, and the control system is electrically connected with the detection assembly; the control system is electrically connected with the lifting driving assembly and the rotation driving assembly and used for controlling the lifting driving assembly and the rotation driving assembly, the lifting driving assembly is used for driving the lifting rod to move in the direction close to or away from the oil cup, and the rotation driving assembly is used for driving the fan to rotate. The detection assembly is used for detecting the rotating speed of the fan and / or operation parameters of the rotation driving assembly. According to the device, the liquid level height of the oil cup is judged by detecting the rotating speed of the fan, the contact time with oil dirt is shortened, and the measurement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil cup liquid level detection device technical field especially relates to an oil cup liquid level detection device. BACKGROUND

[0002] The oil cup liquid level detection device is one of important kitchen electrical settings when people cook, and the oil cup of the oil cup liquid level detection device is used for temporarily storing the oil stains separated by the oil cup liquid level detection device. However, since the accumulation process of the oil stains is relatively slow, and the oil cup is usually in a relatively concealed position, the user is easy to ignore the cleaning and pouring of the oil cup. At present, some oil cup liquid level detection devices estimate the oil cup liquid level by accumulating the working time, but a large error is easy to be generated. In addition, part of the technical scheme attempts to use an ultrasonic wave or laser ranging sensor to directly detect the liquid level, but since the sensor is easy to be affected by the oil stain pollution, the application scene is limited and the measurement effect is not good. SUMMARY

[0003] The utility model aims at at least one of above-mentioned existing technical problems, provides an oil cup liquid level detection device, through the rotation parameter of the obtained fan, the device can quickly identify the liquid level condition of the oil cup, the measurement result is accurate and reduces the oil stain pollution problem.

[0004] The utility model provides an oil cup liquid level detection device, be applied to oil cup, the oil cup liquid level detection device includes lifting rod, fan, lifting drive component, rotation drive component, detection component and control system,

[0005] The fan is connected with the lifting rod, the lifting rod is used for driving the fan to move, the lifting drive component is electrically connected with the lifting rod, the rotation drive component is electrically connected with the fan, and the control system is electrically connected with the detection component.

[0006] The control system is electrically connected with the lifting drive component and the rotation drive component respectively, and the control system is used for controlling the lifting drive component and the rotation drive component. The lifting drive component is used to drive the lifting rod to move in the direction close to or away from the oil cup, the rotation drive component is used to drive the fan to rotate, and the detection component is used to detect the rotating speed of the fan and / or the operating parameter of the rotation drive component.

[0007] In a possible implementation, the rotation drive component includes a first motor, the first motor is a constant rotating speed motor, and the detection component is used to detect the operating rotating speed of the first motor.

[0008] In a possible implementation, the rotation drive component includes a second motor, the second motor is a constant power motor, and the detection component is used to detect the operating power of the second motor.

[0009] In a possible implementation, the lifting driving assembly and the rotating driving assembly are integrally arranged.

[0010] In a possible implementation, the lifting driving assembly and the rotating driving assembly are both electrically connected with the lifting rod, and the lifting rod is fixedly connected with the fan.

[0011] In a possible implementation, the fan comprises a plurality of fan blades, and the number of the fan blades is less than or equal to four.

[0012] In a possible implementation, the oil cup liquid level detection device further comprises a displacement sensor.

[0013] The displacement sensor is connected with the lifting rod, and the displacement sensor is used to detect the moving distance of the lifting rod.

[0014] In a possible implementation, the oil cup liquid level detection device further comprises an alarm system, and the alarm system is electrically connected with the control system.

[0015] In a possible implementation, the oil cup liquid level detection device further comprises a power supply, and the power supply is connected with the detection assembly and the control system respectively.

[0016] In a possible implementation, the oil cup liquid level detection device further comprises a display system, and the display system is electrically connected with the control system.

[0017] The oil cup liquid level detection device has the following beneficial effects.

[0018] The utility model provides an oil cup liquid level detection device, is applied to oil cup, and the oil cup liquid level detection device includes lifting rod, fan, lifting driving assembly, rotating driving assembly, detection assembly and control system, the fan is connected with the lifting rod, and the lifting rod is used to drive the fan to move, the lifting driving assembly is electrically connected with the lifting rod, and the rotating driving assembly is electrically connected with the fan, and the control system is electrically connected with the detection assembly, the control system is electrically connected with lifting driving assembly and rotating driving assembly respectively, and the control system is used for controlling lifting driving assembly and rotating driving assembly, and the lifting driving assembly is used for driving the lifting rod to move in the direction close to or away from the oil cup, and the rotating driving assembly is used for driving the fan to rotate, and the detection assembly is used for detecting the rotating speed of the fan and / or the operating parameter of the rotating driving assembly. The device judges the liquid level height of the oil cup by detecting the rotating speed of the fan, reduces the contact time with oil dirt, and improves the efficiency of measurement. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is a structural schematic view of the oil cup liquid level detection device in the embodiment of the present application;

[0021] Figure 2 is a structural schematic view of the oil cup in the embodiment of the present application;

[0022] Figure 3 is a structural schematic view of the liquid level detection system in the embodiment of the present application;

[0023] Figure 4 is a structural schematic view of the liquid level detection system in the embodiment of the present application;

[0024] Figure 5 is a structural schematic view of the liquid level detection system in the second embodiment of the present application;

[0025] Figure 6 is a structural schematic view of the liquid level detection system in the third embodiment of the present application.

[0026] The following is a supplementary description of the drawings:

[0027] 11, lifting rod; 12, fan; 13, lifting driving assembly; 14, rotating driving assembly; 15, detection assembly; 16, control system; 17, display system; 18, alarm system; 2, oil cup; 21, highest liquid level position; 22, safe liquid level position; 23, lowest liquid level position. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The terms "one embodiment" or "an embodiment” as may be used herein means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the application. The appearances of the phrase "in one embodiment” or "in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to a single, "one embodiment.” The terms "first,” "second,” "third,” etc. are used herein to describe various elements, regions, layers, sections, etc. and are not intended to, nor should they be construed to, indicate a particular importance of the elements, regions, layers, sections, etc. or any absolute position or order of the elements, regions, layers, sections, etc. The terms "first,” "second,” "third,” etc. are used herein to distinguish different elements, regions, layers, sections, etc. and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the data used herein can be interchanged, where appropriate, to enable the embodiments of the application described herein to be carried out in orders other than those illustrated or described herein.

[0030] Referring to Figure 1 The oil cup liquid level detection device is applied to an oil cup 2, and comprises a lifting rod 11, a fan 12, a lifting driving assembly 13, a rotating driving assembly 14, a detection assembly 15, and a control system 16. The fan 12 is connected with the lifting rod 11, and the lifting rod 11 is used to drive the fan 12 to move. The lifting driving assembly 13 is electrically connected with the lifting rod 11. The rotating driving assembly 14 is electrically connected with the fan 12. The control system 16 is electrically connected with the detection assembly 15. The control system 16 is electrically connected with the lifting driving assembly 13 and the rotating driving assembly 14 respectively. The control system 16 is used to control the lifting driving assembly 13 and the rotating driving assembly 14. The lifting driving assembly 13 is used to drive the lifting rod 11 to move in the direction of approaching or moving away from the oil cup 2. The rotating driving assembly 14 is used to drive the fan 12 to rotate. The detection assembly 15 is used to detect the rotating speed of the fan 12 and / or the operating parameter of the rotating driving assembly 14. The device judges the liquid level height of the oil cup 2 by detecting the rotating speed of the fan 12, reduces the contact time with oil stains, and improves the measurement efficiency.

[0031] Understandably, the oil stains in the oil cup 2 are oily medium. The lifting rod 11 moves in the air medium without contacting the oil stains. The lifting rod 11 moves in the oily medium when the lifting rod 11 contacts the oil stains. If the lifting rod 11 moves at a constant speed, the lifting rod 11 will slow down when the lifting rod 11 enters the oily medium from the air medium. At this time, the speed of the lifting rod 11 will suddenly change.

[0032] Specifically, in one embodiment, the detection assembly 15 is integrally arranged with the lifting driving assembly 13 and the rotating driving assembly 14, and the lifting driving assembly 13 and the rotating driving assembly 14 are electrically connected with the control system 16. In the embodiment of the present application, the fan 12 is made of high-temperature-resistant and oil-resistant materials, such as polytetrafluoroethylene and rubber. The oil cup liquid level detection device is arranged inside the range hood and above the oil cup 2. In one embodiment, the rotating driving assembly 14 drives the fan 12 to rotate; in another embodiment, the rotating driving assembly 14 drives the lifting rod 11 to rotate, and the lifting rod 11 drives the fan 12 to rotate.

[0033] In one embodiment, the rotating driving assembly 14 includes a first motor, and the first motor is a constant speed motor. The detection assembly 15 is configured to detect the running speed of the first motor. In this way, the detection assembly 15 can monitor the running speed of the first motor in real time to determine whether the fan 12 enters the oily medium, thereby improving the accuracy of detection.

[0034] Specifically, during the process that the fan 12 moves at a constant speed towards the oil cup 2, the first motor drives the fan 12 to rotate at a constant speed, and the running speed of the first motor is also constant. When the fan 12 enters the oily medium from the air medium, the change rate of the running speed of the first motor will exceed the first change rate, and the constant speed will decrease. At this time, the moving distance of the lifting rod 11 and the fan 12 is recorded.

[0035] In another embodiment, the rotating driving assembly 14 includes a second motor, and the second motor is a constant power motor. The detection assembly 15 is configured to detect the running power of the second motor. In this way, the detection assembly 15 can monitor the running power of the second motor in real time to determine whether the fan 12 enters the oily medium, thereby improving the accuracy of detection.

[0036] Specifically, during the process that the fan 12 moves at a constant speed towards the oil cup 2, the second motor drives the fan 12 to rotate at a constant speed, and the running power of the first motor is also constant. When the fan 12 enters the oily medium from the air medium, the change rate of the running speed of the first motor will exceed the first change rate, and the constant power will decrease. At this time, the moving distance of the lifting rod 11 and the fan 12 is recorded.

[0037] Further, the lifting driving assembly 13 and the rotating driving assembly 14 are integrally arranged. In this way, the integrated driving assembly manages two functions through a single control interface, simplifying the control logic, and through unified control of the lifting and rotating actions of the lifting rod 11, it can ensure that the fan 12 operates at a predetermined position, thereby improving work efficiency.

[0038] Specifically, in the embodiments of the present application, the lifting rod 11 is fixedly connected with the fan 12, and the integrated lifting driving assembly 13 and rotating driving assembly 14 drive the lifting rod 11 to move along the direction close to or away from the oil cup 2 and drive the lifting rod 11 to rotate along the preset direction, so as to drive the fan 12 to rotate.

[0039] Specifically, in one embodiment, the lifting driving assembly 13 and the rotating driving assembly 14 are simultaneously turned on or turned off. When the lifting rod 11 moves along the direction close to the oil cup 2, the lifting driving assembly 13 and the rotating driving assembly 14 are used to drive the lifting rod 11 to move at a constant speed along the direction close to the oil cup 2 and rotate at a constant speed along the clockwise direction, so that the fan 12 also moves at a constant speed along the direction close to the oil cup 2 and rotates at a constant speed along the preset direction; when the lifting rod 11 moves along the direction away from the oil cup 2, the lifting driving assembly 13 and the rotating driving assembly 14 are used to drive the lifting rod 11 to move at a constant speed along the direction away from the oil cup 2 and rotate at a constant speed along the counterclockwise direction, so that the fan 12 also moves at a constant speed along the direction close to the oil cup 2 and rotates at a constant speed along the counterclockwise direction.

[0040] Specifically, the lifting driving assembly 13 and the rotating driving assembly 14 are both electrically connected with the lifting rod 11, and the lifting rod 11 is fixedly connected with the fan 12. In this way, the lifting driving assembly 13 and the rotating driving assembly 14 can accurately control the lifting and rotation of the lifting rod 11, so that the angle and height of the fan 12 can be adjusted as needed to adapt to different detection scenarios.

[0041] Specifically, in the embodiments of the present application, the fan 12 is fixedly connected with the lifting rod 11 by means of bolts, buckles or welding. When the lifting rod 11 moves along the direction close to the oil cup 2, the lifting driving assembly 13 and the rotating driving assembly 14 are used to drive the lifting rod 11 to move at a constant speed along the direction close to the oil cup 2 and rotate at a constant speed along the preset direction, so that the fan 12 also moves at a constant speed along the direction close to the oil cup 2 and rotates at a constant speed along the preset direction; when the lifting rod 11 moves along the direction away from the oil cup 2, the detection assembly 15 does not need to detect the liquid level of the oil cup 2 at this time, the lifting driving assembly 13 drives the lifting rod 11 to move along the direction away from the oil cup 2, and the rotating driving assembly 14 is turned off.

[0042] Further, the fan 12 includes a plurality of fan blades, and the number of the fan blades is less than or equal to four. In this way, a proper number of fan blades can accurately detect the liquid surface condition of the oil cup 2 without accumulating too much oil dirt.

[0043] In one embodiment, the number of the fan blades is 2-4, when the fan 12 includes 2 fan blades, the 2 fan blades are symmetrically distributed, and the included angle between adjacent fan blades is 180°; when the fan 12 includes 3 fan blades, the 3 fan blades are equidistantly distributed, and the included angle between adjacent fan blades is 120°; when the fan 12 includes 4 fan blades, the 4 fan blades are equidistantly distributed, and the included angle between adjacent fan blades is 90°.

[0044] Further, the oil cup liquid level detection device further comprises a displacement sensor; the displacement sensor is connected with the lifting rod 11, and the displacement sensor is used for detecting the moving distance of the lifting rod 11. In this way, the displacement sensor can accurately detect the moving distance of the lifting rod 11, so as to obtain the change of the oil cup liquid level in real time, and ensure the accuracy and reliability of the measurement.

[0045] Specifically, the displacement sensor is used for obtaining the moving distance of the lifting rod 11, when the lifting rod 11 is located at the initial position, the lifting rod 11 and the bottom surface of the oil cup 2 have a first distance H, when the fan 12 touches the oil stain, the descending distance S of the lifting rod 11 is recorded, the oil cup 2 liquid level height L = the first distance H - the descending distance S, when the oil cup 2 liquid level height L is greater than or equal to the height difference between the safe liquid surface position 22 and the lowest liquid surface position 23, it indicates that the oil cup 2 liquid level height exceeds the safe range, and the user needs to clean and pour the oil cup 2; when the oil cup 2 liquid level height L is less than the height difference between the safe liquid surface position 22 and the lowest liquid surface position 23, it indicates that the oil cup 2 liquid level height does not exceed the safe range, and the user does not need to clean and pour the oil cup 2.

[0046] Further, the oil cup liquid level detection device further comprises an alarm system 18, and the alarm system 18 is electrically connected with the control system 16. In this way, when the oil cup liquid level detection device detects that the oil cup 2 liquid level is too high, an alarm can be immediately sent to remind the user, and the negative influence of the oil stain overflow is reduced.

[0047] Specifically, the alarm system 18 is used for outputting an alarm signal, when the oil cup 2 liquid level height exceeds the safe liquid surface position 22, the alarm system 18 outputs a prompt sound or a prompt signal to the user terminal to remind the user that the oil cup 2 should be cleaned, so as to prevent the oil stain from polluting the detection assembly 15 and the range hood body.

[0048] Further, the oil cup liquid level detection device further comprises a power supply, and the power supply is connected with the detection assembly 15 and the control system 16 respectively. In this way, the detection assembly 15 and the control system 16 can independently operate without relying on the power supply of other components, and the reliability of the detection assembly 15 and the control system 16 is improved.

[0049] Specifically, during the detection process, the range hood is turned off, the control system 16 controls the lifting driving assembly 13 and the rotating driving assembly 14 to be turned on, so as to prevent the vibration of the fan of the range hood from interfering with the detection accuracy of the oil cup 2 liquid level, and the power supply is electrically connected with the detection assembly 15 and the control system 16 respectively, so that the power supply can independently supply power to the detection assembly 15 and the control system 16 and is not interfered by the range hood body.

[0050] Further, the oil cup liquid level detection device further comprises a display system 17, and the display system 17 is electrically connected with the control system 16. In this way, the display system 17 can present the detected liquid level height, liquid level state and fan 12 rotating speed and other key parameters in real time, so that the user can quickly understand the liquid level condition, and the display system 17 can also display related operating parameters, such as the position of the lifting rod 11, the state of the rotating driving assembly 14, the current or abnormal alarm information.

[0051] Specifically, in one embodiment, the display system 17 comprises a display panel, and the display panel is arranged on the outer wall of the range hood. The display panel can display the height of the oil cup 2 liquid level in the range hood through a graphical interface, and the user can directly observe the display panel to obtain the height information of the oil cup 2 liquid level to determine whether the oil cup 2 needs to be cleaned.

[0052] The working process of the oil cup liquid level detection device in the embodiment of the present application is introduced below in combination with a specific application scenario, and is as follows:

[0053] S1, the control system 16 controls the lifting driving assembly 13 to drive the lifting rod 11 to rise to an initial position, and records a first distance H between the initial position and the bottom of the oil cup 2;

[0054] S2, the lifting rod 11 is controlled to descend along the direction close to the oil cup 2, and the rotating driving assembly 14 is controlled to drive the fan 12 to rotate at a constant speed, and the operating parameters of the rotating driving assembly 14 in the descending process are recorded;

[0055] S3, if the operating parameters change suddenly, the lifting rod 11 stops descending, at this time, the fan 12 contacts the oil stain, and S5 is entered; if the operating parameters do not change suddenly, the lifting rod 11 continues to descend;

[0056] S4, if the lifting rod 11 descends to a terminal position, it indicates that the oil cup 2 is not full of oil, and S5 is entered; otherwise, S2 is returned;

[0057] S5, the control system 16 controls the lifting driving assembly 13 to drive the lifting rod 11 to rise to the initial position, and the rotating driving assembly 14 stops driving the fan 12 to rotate.

[0058] The specific embodiments of the present application are introduced below based on the above technical solutions.

[0059] Embodiment 1

[0060] Referring to Figures 1-2 The embodiment provides an oil cup liquid level detection device, which is applied to an oil cup 2. The oil cup liquid level detection device comprises a lifting rod 11, a fan 12, a lifting driving assembly 13, a rotating driving assembly 14, a detection assembly 15 and a control system 16. The fan 12 is connected with the lifting rod 11, the lifting rod 11 is used for driving the fan 12 to move, the lifting driving assembly 13 is electrically connected with the lifting rod 11, the rotating driving assembly 14 is electrically connected with the fan 12, and the control system 16 is electrically connected with the detection assembly 15. The control system 16 is electrically connected with the lifting driving assembly 13 and the rotating driving assembly 14 respectively, the control system 16 is used for controlling the lifting driving assembly 13 and the rotating driving assembly 14, the lifting driving assembly 13 is used for driving the lifting rod 11 to move in the direction close to or away from the oil cup 2, the rotating driving assembly 14 is used for driving the fan 12 to rotate, and the detection assembly 15 is used for detecting the rotating speed of the fan 12 or the operating parameter of the rotating driving assembly 14.

[0061] The detection assembly 15 is arranged in the lifting driving assembly 13 and the rotating driving assembly 14. The rotating driving assembly 14 comprises a first motor, the first motor is a constant rotating speed motor, and the detection assembly 15 is used for detecting the operating rotating speed of the first motor. The lifting driving assembly 13 and the rotating driving assembly 14 are integrally arranged. The lifting driving assembly 13 and the rotating driving assembly 14 are electrically connected with the lifting rod 11, and the lifting rod 11 is fixedly connected with the fan 12.

[0062] The fan 12 comprises a plurality of fan blades, the number of the fan blades is equal to four, and when the fan 12 comprises four fan blades, the four fan blades are equidistantly distributed, and the included angle between adjacent fan blades is 90°.

[0063] The oil cup liquid level detection device further comprises a displacement sensor, the displacement sensor is used for acquiring the moving distance of the lifting rod 11. When the lifting rod 11 is located at an initial position, the lifting rod 11 and the bottom surface of the oil cup 2 have a first distance H. After the fan 12 touches oil stains, the descending distance S of the lifting rod 11 is recorded. The liquid level height L of the oil cup 2 is equal to the first distance H minus the descending distance S. When the liquid level height L of the oil cup 2 is greater than or equal to the height difference between the safe liquid surface position 22 and the lowest liquid surface position 23, it is indicated that the liquid level height of the oil cup 2 exceeds a safe range, and the user needs to clean and pour the oil cup 2. When the liquid level height L of the oil cup 2 is less than the height difference between the safe liquid surface position 22 and the lowest liquid surface position 23, it is indicated that the liquid level height of the oil cup 2 does not exceed the safe range, and the user does not need to clean and pour the oil cup 2.

[0064] The oil cup liquid level detection device further comprises a power supply, which is connected with the detection assembly 15 and the control system 16 respectively. During the detection process, the range hood is closed, the control system 16 controls the lifting driving assembly 13 and the rotating driving assembly 14 to be opened, the vibration of the fan of the range hood is prevented from interfering with the detection accuracy of the liquid level of the oil cup 2, the power supply is electrically connected with the detection assembly 15 and the control system 16 respectively, and the power supply can independently supply power to the detection assembly 15 and the control system 16 and is not interfered by the range hood body.

[0065] Embodiment 2

[0066] For Figure 5 Embodiment 2 and Embodiment 1 have the same parts, which will not be repeated here, and the difference between Embodiment 2 and Embodiment 1 is that the oil cup liquid level detection device further comprises an alarm system 18, which is electrically connected with the control system 16. The alarm system 18 is used to output an alarm signal, when the liquid level height of the oil cup 2 exceeds the safe liquid level position 22, the alarm system 18 outputs a prompt sound or a prompt signal to the user terminal to remind the user to clean the oil cup 2, so as to prevent the oil stain from polluting the detection assembly 15 and the range hood body.

[0067] Embodiment 3

[0068] For Figure 6 Embodiment 3 and Embodiment 1 have the same parts, which will not be repeated here, and the difference between Embodiment 3 and Embodiment 1 is that the oil cup liquid level detection device further comprises a display system 17, which is electrically connected with the control system 16. The display system 17 comprises a display panel, which is arranged on the outer wall of the range hood, and the display panel can display the height of the liquid level of the oil cup 2 in the range hood through a graphical interface, so that the user can directly observe the display panel to obtain the height information of the liquid level of the oil cup 2 to determine whether the oil cup 2 needs to be cleaned.

[0069] The above only discloses several preferred embodiments of the utility model, and cannot limit the scope of the utility model, therefore, equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. An oil cup level detection device, characterized by, The oil cup liquid level detection device is applied to an oil cup (2) and comprises a lifting rod (11), a fan (12), a lifting drive assembly (13), a rotary drive assembly (14), a detection assembly (15) and a control system (16). The fan (12) is connected with the lifting rod (11), the lifting rod (11) is used for driving the fan (12) to move, the lifting drive assembly (13) is electrically connected with the lifting rod (11), the rotary drive assembly (14) is electrically connected with the fan (12), and the control system (16) is electrically connected with the detection assembly (15). The control system (16) is electrically connected with the lifting drive assembly (13) and the rotary drive assembly (14) respectively, the control system (16) is used for controlling the lifting drive assembly (13) and the rotary drive assembly (14), the lifting drive assembly (13) is used for driving the lifting rod (11) to move in a direction close to or away from the oil cup (2), the rotary drive assembly (14) is used for driving the fan (12) to rotate, and the detection assembly (15) is used for detecting the rotating speed of the fan (12) and / or the operating parameter of the rotary drive assembly (14).

2. The oil cup level detection device of claim 1, wherein, The rotary drive assembly (14) comprises a first motor, the first motor is a constant rotating speed motor, and the detection assembly (15) is used for detecting the operating rotating speed of the first motor.

3. The oil cup level detection device of claim 1, wherein, The rotary drive assembly (14) comprises a second motor, the second motor is a constant power motor, and the detection assembly (15) is used for detecting the operating power of the second motor.

4. The oil cup level detection device according to any one of claims 1 to 3, characterized in that, The lifting drive assembly (13) and the rotary drive assembly (14) are integrally arranged.

5. The oil cup level detection device of claim 4, wherein, The lifting drive assembly (13) and the rotary drive assembly (14) are electrically connected with the lifting rod (11), and the lifting rod (11) is fixedly connected with the fan (12).

6. The oil cup level detection device of any one of claims 1-3, wherein, The fan (12) comprises a plurality of fan blades, and the number of the fan blades is less than or equal to four.

7. The oil cup level detection device of any of claims 1-3, wherein, The oil cup liquid level detection device further comprises a displacement sensor. The displacement sensor is connected with the lifting rod (11), and the displacement sensor is used for detecting the moving distance of the lifting rod (11).

8. The oil cup level detection device of any of claims 1-3, wherein, The oil cup liquid level detection device further comprises an alarm system (18), and the alarm system (18) is electrically connected with the control system (16).

9. The oil cup level detection device of any of claims 1-3, wherein, The oil cup liquid level detection device further comprises a power supply, and the power supply is connected with the detection assembly (15) and the control system (16) respectively.

10. The oil cup level detection device of any of claims 1-3, wherein, The oil cup liquid level detection device further comprises a display system (17), and the display system (17) is electrically connected with the control system (16).

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