A range hood

Abstract

The application provides a range hood, and relates to the technical field of household appliances, which is used to solve the problem that users cannot check the residual oil position in the oil cup after the range hood is used for a long time, and oil drops in the oil cup overflow. The range hood comprises a box body provided with a containing cavity and a connecting hole in communication, an oil cup in communication with the containing cavity through the connecting hole, an oil level sensor arranged at the connecting hole, a transmission member connected with the oil level sensor, a power member in transmission connection with the transmission member, a controller and a reminding device, the power member is used to drive the transmission member to move, so that the oil level sensor moves between a first position and a second position, the first position is that the oil level sensor is withdrawn into the connecting hole, and the second position is that the oil level sensor extends into the oil cup; the controller is used to control the power member to start, so as to control the oil level sensor to reciprocate between the first position and the second position; and the reminding device is controlled to start when the oil level sensor detects that the oil level in the oil cup reaches a preset scale.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a range hood. BACKGROUND

[0002] The range hood is one of the indispensable kitchen household appliances in modern families. The range hood can be installed above the kitchen stove, which can quickly absorb the waste of the stove combustion and the oil fume generated during the cooking process, which is harmful to human body, and discharge it outdoors to reduce the pollution to the indoor and purify the indoor air, and has a certain safety guarantee function of preventing poison and explosion.

[0003] At present, in the range hood, an oil collecting device is usually arranged at the lower part of the range hood body to collect the oil in the waste gas absorbed by the range hood to avoid the oil flowing to the cooking bench. In order to remind the user to clean the residual oil in the oil cup in time, a transparent window is usually arranged at the middle position of the oil cup to remind the user of the position of the residual oil. However, due to the small size of the window and the location close to the wall, some condensed oil will accumulate on the surface of the window after a long time, which makes the user unable to see clearly and cannot clean the oil fume in time, which easily leads to the overflow of oil drops and poor user experience. At the same time, the window is easy to fall off in the long-term high-temperature cooking environment, which leads to the overflow of residual oil in the oil cup. SUMMARY

[0004] The present application provides a range hood to solve the problem that the user cannot check the position of the residual oil in the oil cup after a long time of using the range hood in the related art, which leads to the overflow of oil drops in the oil cup.

[0005] The present application provides a range hood, which comprises a box body, an oil cup, an oil level sensor, a transmission member, a power member, a controller and a reminding device. The box body is provided with a containing cavity and a connecting hole, and the containing cavity is in communication with the connecting hole. The oil cup is arranged below the box body and is in communication with the containing cavity through the connecting hole. The oil level sensor is arranged at the connecting hole and can be extended into the oil cup to detect the oil level in the oil cup. The transmission member is arranged in the containing cavity and is connected with the oil level sensor. The power member is in transmission connection with the transmission member and is used to drive the transmission member to move, so that the oil level sensor moves between a first position and a second position. The first position is that the oil level sensor is withdrawn into the connecting hole, and the second position is that the oil level sensor is extended into the oil cup. The controller is electrically connected with the power member and the oil level sensor, and is used to control the power member to start, so as to control the oil level sensor to move from the first position to the second position or from the second position to the first position. The reminding device is electrically connected with the controller. When the oil level sensor detects that the oil level in the oil cup reaches a preset scale, the controller controls the reminding device to start.

[0006] The range hood in the application comprises a box body, an oil cup, an oil level sensor, a transmission member, a power member, a controller and a reminding device. The box body is provided with a containing cavity and a connecting hole, and the containing cavity is in communication with the connecting hole. The oil cup is arranged below the box body and is in communication with the containing cavity through the connecting hole. The oil level sensor is arranged at the connecting hole and can extend into the oil cup to detect the oil level of residual oil in the oil cup.

[0007] In the related art, the oil cup is usually taken out by sliding in the horizontal direction. In order to avoid the oil level sensor from hindering the oil cup during the process of taking out or installing, the power member is in transmission connection with the transmission member in the application, which is used to drive the transmission member to move, so that the oil level sensor moves between the first position and the second position. The first position is that the oil level sensor is withdrawn into the connecting hole, and the second position is that the oil level sensor extends into the oil cup. The controller is in electrical connection with the power member and the oil level sensor, which is used to control the power member to start, so as to control the oil level sensor to move from the first position to the second position or from the second position to the first position. The reminding device is in electrical connection with the controller. When the oil level in the oil cup reaches the preset scale detected by the oil level sensor, the controller controls the reminding device to start.

[0008] In this way, when installation is needed, the oil level sensor can be controlled to be located at the first position by the controller, so as to avoid hindering the installation of the oil cup during assembly. When the installation of the oil cup is completed, the oil level sensor can be adjusted from the first position to the second position by the controller. In this way, the oil level sensor extends into the oil cup to measure the oil level in the oil cup. When the oil level in the oil cup is high, the reminding device starts to remind the user to clean the oil stains in time. When the oil stains are cleaned, the oil level sensor can be adjusted from the second position to the first position by the controller, so as to avoid hindering the disassembly of the oil cup.

[0009] In this way, compared with the related art, a transparent window is arranged at the middle position of the oil cup to remind the user of the position of residual oil. When the oil level in the oil cup of the range hood in the application is high, the reminding device automatically starts to remind the user to clean the oil stains in time, which can avoid the overflow of oil droplets in the oil cup and improve the experience effect of the user.

[0010] In some embodiments of the application, the power member comprises a motor, and the output shaft of the motor is in transmission connection with the transmission member.

[0011] In some embodiments of the application, the transmission member comprises a connecting member and a connecting rod. One end of the connecting member is connected with the output shaft. One end of the connecting rod is hinged with the other end of the connecting member, and the other end of the connecting rod is hinged with the oil level sensor, so that when the motor starts, the connecting member rotates around the output shaft to drive the oil level sensor to move between the first position and the second position through the connecting rod.

[0012] In some embodiments of the present application, the range hood further comprises a control panel; the reminding device comprises a signal lamp, the signal lamp being arranged on the control panel; when the reminding device is activated, the signal lamp is constantly on or flashes; and / or, the reminding device comprises a loudspeaker; the loudspeaker is arranged on the control panel; when the reminding device is activated, the loudspeaker emits a preset alarm sound.

[0013] In some embodiments of the present application, the controller is configured to, in response to a first operation instruction of a user, control the motor to operate so as to move the oil level sensor from the first position to the second position.

[0014] In some embodiments of the present application, the controller controls the motor to operate so as to move the oil level sensor from the first position to the second position, comprising: the controller controls the motor to operate for a preset duration so as to move the oil level sensor from the first position to the second position; or, the controller controls the output shaft of the motor to rotate a preset angle so as to move the oil level sensor from the first position to the second position.

[0015] In some embodiments of the present application, the range hood further comprises a first position sensor arranged at the second position, the first position sensor being configured to send a first signal to the controller when detecting the oil level sensor; the controller controls the motor to operate so as to move the oil level sensor from the first position to the second position, comprising: the controller controls the motor to start; the controller receives the first signal sent by the first position sensor; and the controller controls the motor to stop.

[0016] In some embodiments of the present application, the controller is configured to, after the reminding device is activated, in response to a second operation instruction of a user, control the reminding device to be turned off, and control the oil level sensor to move from the second position to the first position.

[0017] In some embodiments of the present application, the range hood further comprises a second position sensor arranged at the first position, the second position sensor being configured to detect second position information of the oil level sensor, the second position information at least comprising: the oil level sensor being located at the first position; a limit sensor configured to detect third position information of the oil cup, the third position information at least comprising: position information of the oil cup being not installed in place and position information of the oil cup being installed in place; the controller is further configured to: receive a second signal sent by the limit sensor at a first time, the second signal being configured to indicate that the oil cup is not installed in place; receive a third signal sent by the limit sensor and a fourth signal sent by the second position sensor at a second time; the second time being after the first time; and if the third signal is configured to indicate that the oil cup is installed in place and the fourth signal is configured to indicate that the oil level sensor is located at the first position, the controller controls the oil level sensor to move from the first position to the second position.

[0018] In some embodiments of the present application, the box is provided with a clamping interface, and a clamping slot in communication with the clamping interface and extending in the first direction is arranged, and the oil cup is clamped with the box through the clamping slot; the limit sensor comprises: a first limit sensor, the first limit sensor is arranged on the box and close to the clamping interface, and the first limit sensor is used to send a second signal to the controller when detecting the oil cup; a second limit sensor, the second limit sensor is arranged in the first direction and spaced apart from the first limit sensor, and the second limit sensor is located on the side of the first limit sensor away from the clamping interface; the second limit sensor is used to send a third signal to the controller when detecting the oil cup; receiving the second signal sent by the limit sensor at the first time point comprises: receiving the second signal sent by the first limit sensor at the first time point; receiving the third signal sent by the limit sensor at the second time point comprises: receiving the third signal sent by the second limit sensor at the second time point. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, and are used to explain the technical solutions of the present application together with the embodiments of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0020] Figure 1 A structural schematic diagram of an oil smoke machine is provided for the embodiments of the present application;

[0021] Figure 2 A structural schematic diagram of a box is provided for the embodiments of the present application;

[0022] Figure 3 A connection structural schematic diagram of a box and an oil cup is provided for the embodiments of the present application;

[0023] Figure 4 A position schematic diagram of an oil level sensor is provided for the embodiments of the present application;

[0024] Figure 5 A three-dimensional structural schematic diagram of an oil level sensor is provided for the embodiments of the present application;

[0025] Figure 6 A position schematic diagram of an oil level sensor is provided for the embodiments of the present application;

[0026] Figure 7 A schematic diagram of an oil level sensor at a second position is provided for the embodiments of the present application;

[0027] Figure 8 A circuit connection structural schematic diagram of an oil smoke machine is provided for the embodiments of the present application;

[0028] Figure 9 A front view of an oil smoke machine is provided for the embodiments of the present application;

[0029] Figure 10 A schematic view of a circuit connection structure of an extractor hood provided by an embodiment of the present application;

[0030] Figure 11 A front view of an extractor hood provided by an embodiment of the present application;

[0031] Figure 12 A front view of an extractor hood provided by an embodiment of the present application;

[0032] Figure 13 A schematic view of a structure of an extractor hood provided by an embodiment of the present application;

[0033] Figure 14 A schematic view of a structure of an extractor hood provided by an embodiment of the present application;

[0034] Figure 15 A schematic view of a circuit connection structure of an extractor hood provided by an embodiment of the present application;

[0035] Figure 16 A flow chart of a control method of an extractor hood provided by an embodiment of the present application;

[0036] Figure 17 A flow chart of a control method of an extractor hood provided by an embodiment of the present application;

[0037] Figure 18 A flow chart of a control method of an extractor hood provided by an embodiment of the present application;

[0038] Figure 19 A flow chart of a control method of an extractor hood provided by an embodiment of the present application;

[0039] Figure 20 A schematic view of a hardware structure of a controller provided by an embodiment of the present application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the protection scope of the present application.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0044] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0045] With the development of technology and the continuous progress of society, people's living standards are getting higher and higher, and range hoods have become an indispensable kitchen appliance in modern family cooking. In range hoods, there is usually an oil collection device (i.e., oil cup) at the bottom of the range hood body, which is used to collect the oil in the exhaust gas absorbed by the range hood and prevent oil dripping onto the stove.

[0046] Traditional range hoods typically have a transparent window in the center of the oil cup to display the level of residual oil, reminding users to clean the cup promptly. However, because this window is small and located close to the wall, over time, condensed oil can accumulate on its surface, making it difficult for users to see clearly and clean the grease in time. This can easily lead to oil spillage and a poor user experience.

[0047] In view of this, this application provides a range hood that can solve the problem in the related art where users cannot see the position of residual oil in the oil cup after long-term use, resulting in oil dripping out of the oil cup, thereby improving the user experience.

[0048] Figure 1 This application provides a schematic diagram of the structure of a range hood according to an embodiment of the present application. Figure 1 As shown, the range hood 100 includes: a housing 10, an oil cup 20, an oil level sensor 30, a transmission component 40, a power component 50, and a controller 60. Figure 1 (not shown in the image) and reminder device 70 ( Figure 1 (Not shown in the image).

[0049] in, Figure 2 This application provides a schematic diagram of the structure of a housing according to an embodiment of the present application. Figure 2 As shown, the housing 10 has a receiving cavity 11 inside, and the housing 10 is provided with a connecting hole 12. The connecting hole 12 communicates with the receiving cavity 11 so that the receiving cavity 11 can communicate with the outside through the connecting hole 12.

[0050] Optionally, the enclosure 10 can be made of metal. For example, the metal material can be stainless steel, aluminum alloy, zinc-containing steel plate, etc. In this way, the enclosure 10 has a certain strength, which can reduce the deformation of the enclosure 10 when it collides with other objects and improve the service life of the enclosure 10.

[0051] Optionally, the casing 10 can also be made of plastic, such as acrylonitrile butadiene styrene (ABS), high-impact polystyrene (HIPS), polycarbonate (PC), or polyethylene glycol terephthalate (PET). This allows for the use of injection molding to create a casing in one piece, improving production efficiency and reducing costs.

[0052] The shape of the box 10 can be a regular three-dimensional structure, such as a cuboid structure or a cylindrical structure. The shape of the box 10 can also be an irregular three-dimensional structure, such as a combination of a cuboid and a cylinder, or a combination of a cuboid and a triangular prism. This application does not limit the shape of the box 10.

[0053] Figure 3 This illustration shows a schematic diagram of the connection structure between the housing and the oil cup according to an embodiment of this application. Figure 3As shown, the oil cup 20 is arranged below the box body 10, which can be used to receive the oil drops condensed and dropped on the box body 10. The oil cup 20 is in communication with the accommodating cavity 11 through the connecting hole 12, that is, the bottom wall surface of the box body 10 is provided with the connecting hole 12, and the oil cup 20 is connected with the bottom wall surface of the box body 10.

[0054] The material of the oil cup 20 can be plastic, metal or porcelain, such as ceramic or enamel, which is not limited in the application.

[0055] Similarly, the oil cup 20 can be a cuboid or a cylinder, which is not limited in the application.

[0056] Figure 4 Fig. 1 shows a schematic diagram of the position of an oil level sensor provided by an embodiment of the application, Figure 5 Fig. 2 shows a schematic diagram of the three-dimensional structure of an oil level sensor provided by an embodiment of the application, Figure 6 Fig. 3 shows a schematic diagram of the position of an oil level sensor provided by an embodiment of the application, Figure 4 Figure 5 and Figure 6 As shown, the oil level sensor 30 is arranged at the connecting hole 12, which can extend into the oil cup 20 to detect the oil level in the oil cup 20. The transmission member 40 is arranged in the accommodating cavity 11 and connected with the oil level sensor 30, which is used to drive the oil level sensor 30 to move. The power member 50 is in transmission connection with the transmission member 40, which is used to drive the transmission member 40 to move, so that the oil level sensor 30 moves between a first position (as shown in Fig. 1) and a second position (as shown in Fig. 2). The first position is that the oil level sensor 30 is withdrawn into the connecting hole 12, and the second position is that the oil level sensor 30 extends into the oil cup 20. That is, as shown in Figs. 1 and 2, the oil level sensor 30 can reciprocate along the Y-axis direction in Fig. 3. Figure 5 Figure 4 Figure 4 and Figure 5 Figure 4

[0057] The oil level sensor 30 is used to detect the position (height) of the oil in the container by using the change of the capacitance between the sensor shell and the sensing electrode caused by the oil entering the container, and converting the change into the change of the current.

[0058] In a possible implementation, when the oil level sensor 30 extends into the oil cup 20 (that is, is located at the second position), the oil level sensor 30 is located at a fixed position of the oil cup 20. When the oil in the oil cup 20 contacts the oil level sensor 30, the oil level sensor 30 will send a signal.

[0059] Figure 7 ​​​​​This illustration shows a schematic diagram of an oil level sensor in a second position, as provided in an embodiment of this application. For example,... Figure 7 As shown, the distance between the oil level sensor 30 and the bottom wall of the oil cup 20 is H1, and the length of H1 can be greater than or equal to half of H (i.e., Figure 7 The depth of the oil cup 20 shown is less than or equal to one-quarter of H (i.e., Figure 7 The depth of the oil cup 20 is thus ensured. This ensures that the oil droplet is at a safe level in the oil cup 20. When the oil droplet level exceeds the safe level, it comes into contact with the oil level sensor 30, which then sends a signal.

[0060] In another possible implementation, when the oil level sensor 30 is inserted into the oil cup 20 (i.e., in the second position), the oil level sensor 30 abuts against the bottom wall of the oil cup 20, and when the oil level reaches the preset alarm level (scale) of the oil level sensor 30, the oil level sensor 30 will send a signal.

[0061] Figure 8 This application provides a schematic diagram of the circuit connection structure of a range hood according to an embodiment of the present application. Figure 8 As shown, the controller 60 is electrically connected to the power component 50 and the oil level sensor 30. It is used to control the power component 50 to start, so as to control the oil level sensor 30 to move from the first position to the second position, or from the second position to the first position. That is, the user can control the position of the oil level sensor 30 through the controller 60.

[0062] The controller 60 refers to a device that can generate operation control signals based on instruction opcodes and timing signals, instructing the range hood 100 to execute control commands. Exemplarily, the controller 60 can be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a programmable logic device (PLD), a microprocessor, a microcontroller 60, or any combination thereof. The controller 60 can also be other devices with processing functions, such as circuits, devices, or software modules; this application embodiment does not impose any limitations on this.

[0063] Figure 9 This illustration shows a front view of a range hood provided in an embodiment of this application. Optionally, as shown... Figure 9 As shown, the controller 60 can be installed on the exhaust duct 71 above the housing 10 of the range hood, and the fumes enter the exhaust duct 71 through the fume inlet 13 on the housing 10.

[0064] Optionally, the controller 60 can also be arranged on the cabinet 10 of the range hood, which is not limited in the present application.

[0065] Optionally, the power member 50 can be a motor, which includes an output shaft connected with the transmission member 40. Thus, the power output by the output shaft is transmitted to the oil level sensor 30 through the transmission member 40, so as to move the oil level sensor 30 from the first position to the second position, or from the second position to the first position.

[0066] In a possible implementation, as shown in Figure 9 The range hood 100 further includes a control panel 80 provided with a control device 81. Figure 10 The circuit structure of the range hood is shown in the present application, as shown in Figure 10 The control device 81 is electrically connected with the controller 60, so that the user controls the position of the oil level sensor 30 by operating the control device 81.

[0067] Optionally, as shown in Figure 11 The control device 81 can be a touch screen, so that the user can control the position of the oil level sensor 30 by operating the touch screen.

[0068] Optionally, as shown in Figure 12 The control device 81 can also be a physical button, so that the user can control the position of the oil level sensor 30 by operating the physical button.

[0069] In addition, as shown in Figure 10 The reminder device 70 is also electrically connected with the controller 60; when the oil level sensor 30 detects that the oil level in the oil cup 20 reaches the preset scale, the controller 60 receives the signal sent by the oil level sensor 30, and the controller 60 controls the reminder device 70 to start.

[0070] In a possible implementation, the reminder device 70 includes a signal lamp arranged on the control panel.

[0071] Optionally, the controller 60 receives the signal sent by the oil level sensor 30, and the controller 60 can control the signal lamp to be always on or flashing.

[0072] In this way, when the user sees the signal lamp starting, he can understand that the oil level in the oil cup 20 is too high through the text beside the signal lamp or the instruction manual of the range hood 100, so as to remove the oil drops in the oil cup 20 in the first time.

[0073] In another possible implementation, the reminding device 70 comprises a speaker; the speaker is arranged on the control panel 80, i.e., the control panel 80 can be provided with a sound outlet hole, and the sound outlet surface of the speaker faces the sound outlet hole. The controller 60 receives the signal sent by the oil level sensor 30, and controls the speaker to send a preset alarm sound to remind the user to remove the oil drops in the oil cup 20 in time.

[0074] In this way, when the controller 60 receives the signal sent by the oil level sensor 30, the user can hear the voice prompt of the oil level in the oil cup 20 being too high, so as to remove the oil drops in the oil cup 20 in the first time.

[0075] In another possible implementation, the reminding device 70 can further comprise a display screen, which can also be arranged on the control panel 80. When the controller 60 receives the signal sent by the oil level sensor 30, the controller 60 controls the display screen to display a first preset picture or a first preset video, which is used to remind the user to remove the oil drops in the oil cup 20.

[0076] In this way, when the user sees the picture or the video displayed on the display screen, which reminds the user to remove the oil drops in the oil cup 20, the user can remove the oil cup 20 according to the reminding picture or the reminding video, and remove the oil drops in the oil cup, thereby improving the intelligence of the range hood 100.

[0077] The range hood 100 in the application comprises a box body 10, an oil cup 20, an oil level sensor 30, a transmission member 40, a power member 50, a controller 60 and a reminding device 70. The box body 10 is provided with an accommodating cavity 11 and a connecting hole 12, and the accommodating cavity 11 communicates with the connecting hole 12. The oil cup 20 is arranged below the box body 10 and communicates with the accommodating cavity 11 through the connecting hole 12. The oil level sensor 30 is arranged at the connecting hole 12 and can extend into the oil cup 20, so as to detect the oil level of the residual oil (i.e., the oil drops) in the oil cup 20.

[0078] In the related art, the oil cup 20 is usually taken out by sliding in the horizontal direction, in order to avoid the oil cup 20 being hindered by the oil level sensor 30 during the taking-out or installation process, the power member 50 is in transmission connection with the transmission member 40, for driving the transmission member 40 to move, so that the oil level sensor 30 moves between the first position and the second position, the first position is that the oil level sensor 30 is withdrawn into the connecting hole 12, and the second position is that the oil level sensor 30 extends into the oil cup 20; the controller 60 is in electrical connection with the power member 50 and the oil level sensor 30, for controlling the power member 50 to start, so as to control the oil level sensor 30 to move from the first position to the second position, or from the second position to the first position; the reminding device 70 is in electrical connection with the controller 60; when the oil level in the oil cup 20 reaches the preset scale detected by the oil level sensor 30, the controller 60 controls the reminding device 70 to start.

[0079] In this way, when installation is needed, the oil level sensor 30 can be controlled by the controller 60 to be located at the first position, so as to avoid the oil level sensor 30 hindering the installation of the oil cup 20 during assembly, and when the installation of the oil cup 20 is completed, the oil level sensor 30 can be controlled by the controller 60 to be adjusted from the first position to the second position, so that the oil level sensor 30 extends into the oil cup 20 to measure the oil level in the oil cup 20. When the oil level in the oil cup 20 is high, the reminding device 70 starts to remind the user to clean the oil in time. When the oil is cleaned, the oil level sensor 30 can be controlled by the controller 60 to be adjusted from the second position to the first position, so as to avoid the oil level sensor 30 hindering the disassembly of the oil cup 20.

[0080] In this way, compared with the related art, a transparent window is arranged at the middle position of the oil cup 20 to remind the user of the residual oil position. The range hood 100 of the present application automatically starts the reminding device 70 to remind the user to clean the oil in time when the oil level in the oil cup 20 is high, which can avoid the oil droplets overflowing from the oil cup 20 and improve the user experience effect.

[0081] In some embodiments, as shown in Figure 13 The transmission member 40 includes a connecting member 41 and a connecting rod 42, one end of the connecting member 41 is connected with the output shaft, one end of the connecting rod 42 is hinged with the other end of the connecting member 41, and the other end of the connecting rod 42 is hinged with the oil level sensor 30, so that when the motor starts, the connecting member 41 rotates around the output shaft to drive the oil level sensor 30 to move between the first position and the second position.

[0082] For example, as shown in Figure 13 When the connecting member 40 rotates to the position, the connecting member 40 drives the oil level sensor 30 through the connecting rod 42, so that the oil level sensor 30 is located at the second position; as shown in Figure 6As shown, when the connector 40 rotates to this position, the connecting rod 42 drives the oil level sensor 30 to position the oil level sensor 30 in the first position.

[0083] In other embodiments, such as Figure 14 As shown, the transmission component 40 may further include: a gear 43 and a rack structure 44, the gear 43 being connected to the output shaft of the motor, and the rack structure 44 extending along the extension direction of the connecting hole 12 (i.e., as shown in the figure). Figure 14 The rack structure 44 is slidably configured (as shown in the Y-axis direction). One end of the rack structure 44 is connected to the oil level sensor 30, and the rack structure 44 meshes with the gear 43. Thus, when the motor is running, the motor drives the gear 43 to rotate, thereby causing the rack structure 44 to slide along the extension direction of the connecting hole 12, so that the oil level sensor 30 extends into the oil cup 20.

[0084] In some embodiments, such as Figure 15 As shown, the range hood 100 also includes a first position sensor 82, which is disposed at a second position. The first position sensor 82 is electrically connected to the controller 60. The first position sensor 82 is used to send a first signal to the controller 60 when the oil level sensor 30 is detected.

[0085] The position sensor is a sensor that can receive position information from the object being measured and then output the received information.

[0086] Optionally, the first position sensor 82 can be a capacitive position sensor, which determines the position of the object being measured by detecting changes in capacitance. The capacitor consists of two separate plates with a dielectric material between them.

[0087] Optionally, the first position sensor 82 can be a potential position sensor, which has a contact connected to a mechanical shaft. The movement of the mechanical shaft can be angular (rotational) or linear, which causes a change in the resistance value between the slider and the two end connections, thereby generating an electrical signal output that has a proportional relationship between the actual tap position on the resistive track and its resistance value.

[0088] In addition, the first position sensor 82 can also be a magnetostrictive position sensor, a fiber optic position sensor, an optical position sensor, an ultrasonic position sensor, etc., and this application does not limit it.

[0089] In some embodiments, such as Figure 15 As shown, the range hood 100 may further include: a second position sensor 83, which is disposed at a first position. The second position sensor 83 is used to detect the second position information of the oil level sensor 30. The second position information includes at least: the oil level sensor 30 is located at the first position.

[0090] The second position sensor 83 can also be a capacitive position sensor, a potentiometric position sensor, a magnetostrictive position sensor, a fiber optic position sensor, an optical position sensor, an ultrasonic position sensor, etc., and this application does not limit it.

[0091] In some embodiments, such as Figure 15 As shown, the range hood 100 may further include: a limit sensor 84, which is used to detect the third position information of the oil cup 20. The third position information includes at least: position information of the oil cup 20 not being installed in place and position information of the oil cup 20 being installed in place.

[0092] Similarly, the limit sensor 84 can also be a capacitive position sensor, a potential position sensor, a magnetostrictive position sensor, etc., as described above, and this application does not limit it.

[0093] In other embodiments, the housing 10 is provided with a card interface and a card slot that communicates with the card interface and extends along a first direction. The oil cup 20 is connected to the housing 10 through the card slot. That is, when the oil cup 20 is installed below the line, it is necessary to push the oil cup 20 to slide along the first direction and slide it into the card interface in sequence. When the oil cup 20 slides into the card slot to a position where the card slot cannot extend further, the oil cup 20 is installed in place.

[0094] like Figure 15 As shown, the limit sensor 84 may include: a first limit sensor 841 and a second limit sensor 842. The first limit sensor 841 is disposed on the housing 10 and is located near the card interface. The first limit sensor 842 is used to send a second signal to the controller 60 when the oil cup 20 is detected, that is, when the first limit sensor 841 detects an object blocking it.

[0095] The second limit sensor 842 is spaced apart from the first limit sensor 841 along the first direction, and the second limit sensor 842 is located on the side of the first limit sensor 841 away from the card interface; the second limit sensor 842 is used to send a third signal to the controller 60 when the oil cup 20 is detected, that is, when the second limit sensor 842 detects the presence of an obstruction signal.

[0096] It is understood that the above mainly describes the structure of the range hood 100. This application also provides a control method for the range hood 100, applied to the controller 60 in the range hood 100, such as... Figure 16 As shown, the method includes the following steps:

[0097] S101, in response to a first operation instruction of a user, the controller controls the motor to operate, so that the oil level sensor moves from the first position to the second position.

[0098] Optionally, the first operation can be that the user touches the touchable display screen. For example, as shown in the figure, a box of "oil level sensor extension" is displayed on the touchable display screen, and when the user clicks the box of "oil level sensor extension" on the touchable display screen, the controller controls the motor to operate. Figure 11

[0099] Optionally, the first operation can also be that the user operates the physical button. For example, as shown in the figure, a physical button of "oil level sensor" is arranged on the control panel, and when the user presses the physical button, the controller controls the motor to operate. Figure 12

[0100] It can be understood that after the oil cup is installed in place, the user can perform the first operation, so that the controller receives the first operation instruction and executes the step S101, so that the oil level sensor extends into the oil cup to measure the oil level in the oil cup.

[0101] In some embodiments, the controller is preconfigured with a first control instruction to directly move the oil level sensor from the first position to the second position.

[0102] In a possible implementation, the motor can be a stepper motor, which can also be referred to as a pulse motor. The stepper motor is an electromotor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. For each input pulse signal, the rotor rotates an angle or moves forward by one step, and the output angular displacement or linear displacement is proportional to the number of input pulses, and the rotation speed is proportional to the pulse frequency.

[0103] Therefore, the first control instruction preconfigured in the controller can be to control the output shaft of the motor to rotate a preset angle. That is, the controller controls the output shaft of the motor to rotate a preset angle, so that the oil level sensor moves from the first position to the second position.

[0104] Optionally, the preset angle can be preconfigured in the controller. For example, the preset angle can be 60 degrees, the preset angle can also be 120 degrees, the preset angle can also be 180 degrees, and the like. The present application does not limit this, and it can be set as needed.

[0105] In another possible implementation, a speed reduction gear can be arranged on the transmission member. The first control instruction preconfigured in the controller can also be to control the motor to operate for a preset duration. That is, the controller controls the motor to operate for a preset duration, so that the oil level sensor moves from the first position to the second position. ​​

[0106] The preset time length can also be set in advance for the controller. For example, the time required for the oil level sensor to move from the first position to the second position is 2S, and the preset time length can be 2S.

[0107] In some other embodiments, the controller receives a stop signal to stop the motor, so that the oil level sensor moves from the first position to the second position.

[0108] In a possible implementation, the stop signal can be a first signal sent by the first position sensor. That is, as shown in FIG. 1, the step S101 can include the following steps: Figure 17

[0109] S1011, in response to a first operation instruction of a user, the controller controls the motor to start.

[0110] S1012, the controller receives a first signal sent by the first position sensor, and the controller controls the motor to stop.

[0111] In this way, when the first position sensor detects the oil level sensor, the first signal is sent to the controller, and the controller receives the first signal to control the motor to stop, so that the oil level sensor can reach the second position.

[0112] It can be understood that in order to avoid the user forgetting to move the oil level sensor from the first position to the second position after installing the oil cup in place, in some embodiments, as shown in FIG. 1, the step S101 can further include: Figure 18

[0113] S100, when the controller obtains a fourth signal sent by the limit sensor, the controller controls a reminding device to start to remind the user to move the oil level sensor from the first position to the second position, wherein the fourth signal is used to indicate that the oil cup is installed in place.

[0114] In a possible implementation, the reminding device is a signal lamp, and when the controller obtains the fourth signal sent by the limit sensor, the controller controls the signal lamp to be always on or to flash, so as to remind the user to perform the first operation.

[0115] In another possible implementation, the reminding device is a loudspeaker, and when the controller obtains the fourth signal sent by the limit sensor, the controller controls the loudspeaker to emit a second preset voice to remind the user to perform the first operation.

[0116] ​​In another possible implementation, the reminding device is a display screen, and when the controller obtains the fourth signal sent by the limit sensor, the controller controls the display screen to display a second preset picture or a second preset video, the second preset picture or the second preset video being used to instruct the user to perform the first operation.

[0117] In this way, when the controller obtains the fourth signal sent by the limit sensor, the controller controls the reminding device to start, so as to avoid the user forgetting to move the oil level sensor from the first position to the second position after the oil cup is installed in place, and thus the oil level detection device cannot detect the oil level in the oil cup, and the oil drops in the oil cup overflow.

[0118] It can be understood that, in some embodiments, if step S100 described above is included, step S101 can include the following steps:

[0119] S101a, the controller controls the reminding device to stop running in response to the first operation instruction of the user, and controls the motor to run so as to move the oil level sensor from the first position to the second position.

[0120] That is, after the user performs the first operation, the controller controls the motor to run so as to move the oil level sensor from the first position to the second position in response to the first operation instruction of the user, and controls the reminding device to stop running at the same time.

[0121] S102, after the oil level sensor moves to the second position, when the oil level sensor detects that the oil level in the oil cup reaches a preset scale, the controller controls the reminding device to start.

[0122] The preset scale is set in advance, and the preset scale can be set according to the situation, which is not limited in the application.

[0123] In addition, the reminding device can be the signal lamp, the loudspeaker, or the display screen described above, which is not limited in the application.

[0124] S103, after the reminding device starts, the controller controls the reminding device to close in response to the second operation instruction of the user, and the controller controls the oil level sensor to move from the second position to the first position.

[0125] The second operation can refer to the description of the first operation, which is not repeated in the application.

[0126] In addition, the controller controls the oil level sensor to move from the second position to the first position, which can refer to the description of the controller controlling the oil level sensor to move from the first position to the second position, which is not limited in the application.

[0127] In order to improve the intelligent level of the range hood, the application further provides another control method of the range hood, which is also applied to the controller in the range hood, as shown in Figure 19 The method can include the following steps:

[0128] S201, the controller receives the second signal sent by the limiting sensor at the first time, and the second signal is used to indicate that the oil cup is not installed in place.

[0129] In a possible implementation, the step S201 can include the following steps:

[0130] S201a, the controller receives the second signal sent by the first limiting sensor at the first time. That is, when the user installs the oil cup, the oil cup needs to be installed from the clamping interface first, and the oil cup is slid into the clamping groove to be installed in place. Therefore, when the oil level is installed from the clamping interface, the first limiting sensor close to the clamping interface will first obtain the position information (i.e., the second information) of the oil cup.

[0131] In another possible implementation, the step S201 can also include the following steps:

[0132] S202a, the controller receives the second signal sent by the second limiting sensor at the first time. That is, at the first time, the second limiting sensor does not obtain the position information of the oil cup. That is, when the oil cup is removed (i.e., the first time), the second limiting sensor sends the second signal to the controller.

[0133] S202, the controller receives the third signal sent by the limiting sensor and the fourth signal sent by the second position sensor at the second time; the second time is after the first time; the third signal is used to indicate that the oil cup is installed in place, and the fourth signal is used to indicate that the oil level sensor is located at the first position.

[0134] In a possible implementation, the step S202 in which the controller receives the third signal sent by the limiting sensor at the second time can include the following steps:

[0135] S202a, the third signal sent by the second limiting sensor is received at the second time. It can be understood that the steps S201a and S201b can be executed after the steps.

[0136] S203, the controller controls the oil level sensor to move from the first position to the second position.

[0137] The specific implementation of the controller controlling the oil level sensor to move from the first position to the second position can refer to the description of the above step S101, and the application does not limit it.

[0138] In this way, the controller can automatically control the oil level sensor to move from the first position to the second position through the steps S201-S203, thereby improving the intelligent level of the range hood and improving the user experience.

[0139] S204, after the oil level sensor moves to the second position, when the oil level sensor detects that the oil level in the oil cup reaches the preset scale, the controller controls the reminder device to start.

[0140] S205, after the reminder device starts, in response to a second operation instruction of a user, the controller controls the reminder device to turn off, and the controller controls the oil level sensor to move from the second position to the first position.

[0141] The steps S204 and S205 can refer to the descriptions of S102 and S103, and the present application will not be repeated here.

[0142] The embodiments of the present application can divide the functional modules of the controller according to the above-mentioned method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated in one processing module. The integrated module can be realized in the form of hardware or in the form of a software functional module. Optionally, the division of the modules in the embodiments of the present application is illustrative, and is only a logical functional division. In actual implementation, another division mode can be used.

[0143] The embodiments of the present application also provide a hardware structure diagram of a controller, as shown in Figure 20 The controller 60 includes a processor 601, and optionally, a memory 602 and a communication interface 603 connected with the processor 601. The processor 601, the memory 602 and the communication interface 603 are connected through a bus 604.

[0144] The processor 601 can be a central processing unit (CPU), a general-purpose processor network processor (NP), a digital signal processing (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD) or any combination thereof. The processor 601 can also be any other device with processing function, such as a circuit, a device or a software module. The processor 601 can also include multiple CPUs, and the processor 601 can be a single-CPU processor or a multi-CPU processor. The processor herein can refer to one or more devices, circuits or processing cores for processing data (such as computer program instructions).

[0145] The memory 602 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of storing desired program code in the form of instructions or data structures and that can be accessed by a computer, without any limitation on the present embodiments. The memory 602 can exist independently or be integrated with the processor 601. The memory 602 can contain computer program code. The processor 601 is configured to execute the computer program code stored in the memory 602, thereby implementing the control method of the range hood provided in the embodiments of the present application.

[0146] The communication interface 603 can be configured to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.). The communication interface 603 can be a module, a circuit, a transceiver, or any device capable of communication.

[0147] The bus 604 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 604 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 20 Only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0148] The embodiments of the present application also provide a computer-readable storage medium, which includes computer-executable instructions. When the computer-executable instructions run on a computer, the computer is caused to execute the control method of the range hood provided in the above embodiments.

[0149] The embodiment of the present application further provides a computer program product, which can be directly loaded into a memory and contains software codes, and the computer program product can realize the control method of the range hood provided by the above embodiment after being loaded and executed by a computer.

[0150] Those skilled in the art should understand that, in one or more examples described above, the functions described by the present application can be realized by hardware, software, firmware or any combination thereof. When realized by software, the functions can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes a computer storage medium and a communication medium, wherein the communication medium includes any medium that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0151] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0152] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner. For example, a plurality of units or components can be combined or integrated into another device, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms. The units described as separate components can be or can not be physically separated, and the components shown as units can be one physical unit or a plurality of physical units, that is, can be located in one place, or can be distributed in a plurality of different places. According to actual needs, some or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0153] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit. When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application essentially or said part that contributes to the prior art or all or part of the technical solutions can be embodied in the form of a software product. The software product is stored in a storage medium, including a plurality of instructions to make a device (which can be a single-chip microcomputer, a chip, etc.) or a processor execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various storage medium that can store program codes.

[0154] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A range hood characterized by, The oil cup is arranged below the box body and communicates with the accommodating cavity through the connecting hole. The oil level sensor is arranged at the connecting hole and can be inserted into the oil cup to detect the oil level in the oil cup. The power member is in driving connection with the transmission member and is used to drive the transmission member to move so as to move the oil level sensor between the first position and the second position. The first position is that the oil level sensor is withdrawn into the connecting hole, and the second position is that the oil level sensor is inserted into the oil cup. The power member includes a motor, and an output shaft of the motor is in driving connection with the transmission member. The controller is in electrical connection with the power member and the oil level sensor and is used to control the power member to start so as to control the oil level sensor to move from the first position to the second position or from the second position to the first position. The controller is configured to: In response to a first operation instruction of a user, the controller controls the motor to operate so as to move the oil level sensor from the first position to the second position. The range hood further includes a first position sensor arranged at the second position. The first position sensor is used to send a first signal to the controller when the oil level sensor is detected. The controller controls the motor to operate so as to move the oil level sensor from the first position to the second position, including that the controller controls the motor to start.

2. The range hood according to claim 1, characterized in that When the controller receives the first signal sent by the first position sensor, the controller controls the motor to stop. The transmission member includes: One end of the connecting member is connected with the output shaft.

3. The range hood according to claim 1, wherein One end of the connecting rod is hinged to the other end of the connecting member, and the other end of the connecting rod is hinged to the oil level sensor. When the motor starts, the connecting member rotates around the output shaft to drive the oil level sensor to move between the first position and the second position through the connecting rod. The range hood further includes a control panel.

4. The range hood according to claim 1, wherein The reminder device includes a signal lamp arranged on the control panel. When the reminder device starts, the signal lamp is always on or flashes. And / or, the reminder device includes a loudspeaker. The loudspeaker is arranged on the control panel. When the reminder device starts, the loudspeaker emits a preset alarm sound. The controller controls the motor to operate so as to move the oil level sensor from the first position to the second position, including that: The controller controls the motor to operate for a preset time length so as to move the oil level sensor from the first position to the second position; or, The controller controls the motor to operate for a preset time length so as to move the oil level sensor from the first position to the second position; or, The controller controls the output shaft of the motor to rotate a preset angle, so that the oil level sensor moves from the first position to the second position.

5. The range hood according to claim 1, wherein The controller is configured to: After the prompting device is started, in response to a second operation instruction of a user, the controller controls the prompting device to be turned off, and the controller controls the oil level sensor to move from the second position to the first position.

6. The range hood according to claim 1, wherein The range hood further comprises: A second position sensor is arranged at the first position, and the second position sensor is used to detect second position information of the oil level sensor, wherein the second position information at least includes that the oil level sensor is located at the first position. A limit sensor is used to detect third position information of the oil cup, wherein the third position information at least includes position information that the oil cup is not installed in place and position information that the oil cup is installed in place. The controller is further configured to: receive a second signal sent by the limit sensor at a first time, wherein the second signal is used to indicate that the oil cup is not installed in place. Receive a third signal sent by the limit sensor and a fourth signal sent by the second position sensor at a second time; the second time is after the first time. If the third signal is used to indicate that the oil cup is installed in place, and the fourth signal is used to indicate that the oil level sensor is located at the first position, the controller controls the oil level sensor to move from the first position to the second position.

7. A range hood according to claim 6, characterized in that A clamping interface is arranged on the box body, and a clamping slot is arranged in communication with the clamping interface and extending in a first direction, and the oil cup is clamped with the box body through the clamping slot. The limit sensor comprises: A first limit sensor is arranged on the box body and close to the clamping interface, and the first limit sensor is used to send the second signal to the controller when detecting the oil cup. A second limit sensor is arranged in the first direction and away from the clamping interface on the side of the first limit sensor; the second limit sensor is used to send a third signal to the controller when detecting the oil cup. The first limit sensor sends the second signal to the controller at the first time. The second limit sensor sends the third signal to the controller at the second time.

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