Range hood control method, device, electronic device, storage medium and range hood

Abstract

The present invention provides a range hood control method, device, electronic device, storage medium and range hood, and relates to the technical field of household appliances. The method includes obtaining a status signal of a panel assembly; based on the status signal, controlling a first path in a bridge circuit to switch from an on state to an off state, and controlling a second path in a bridge circuit to switch from an off state to an on state, wherein a motor body is connected in series in the first path and the second path respectively, one end of the first path is used to access a power signal, and the other end is used for grounding, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in an on state. Without changing the hardware structure of the range hood, compensation for the self-locking force of the motor is achieved. After the self-locking force of the motor becomes larger, the panel droop is more effectively suppressed, the panel is precisely positioned, and the smoking effect of the range hood is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and more specifically, to a range hood control method, a range hood control device, an electronic device, a storage medium and a range hood. Background Art

[0002] In order to better meet user needs, the panel of the range hood is enlarged, which easily leads to a greater load on the components that open and close the panel when the range hood is running. If the self-locking force of the motor cannot overcome the gravity of the panel itself at the moment the panel is in place, it may cause the panel to sag, affecting the smoking effect of the range hood. In the prior art, the problem of panel sagging is generally solved by relying on the self-locking force of the components and the motor itself. However, when the self-locking force of the motor is insufficient, the component may not be able to cooperate with the motor to suppress the sagging of the panel when the panel is in place. If a new component is redesigned and developed, it will not only increase the cost of the entire panel assembly, but also increase the production cycle, which is not conducive to the advancement of the project.

[0003] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] In a first aspect, the present invention provides a method for controlling a range hood, wherein the range hood includes a panel assembly, the panel assembly includes a motor and a panel, the motor is used to drive the movement of the panel, the motor includes a motor body and a drive circuit, the drive circuit includes a bridge circuit, and the method includes:

[0006] Get the status signal of the panel component;

[0007] Based on the state signal, the first path in the bridge circuit is controlled to switch from the on state to the off state, and the second path in the bridge circuit is controlled to switch from the off state to the on state, wherein the motor body is respectively connected in series in the first path and the second path, one end of the first path is used to access the power signal, and the other end is used for grounding, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in the on state.

[0008] In some embodiments, the second path is used to shorten a buffer time when the motor body stops running in the on state.

[0009] In some embodiments, the first path includes a first transistor and a second transistor, and the second path includes a second transistor and a third transistor;

[0010] Controlling a first path in a bridge circuit to switch from an on state to an off state, and controlling a second path in a bridge circuit to switch from an off state to an on state, comprises:

[0011] The first transistor is controlled to switch from the on state to the off state, the third transistor is controlled to switch from the off state to the on state, and the second transistor is controlled to be in the on state, so that the first path is switched from the on state to the off state and the second path is switched from the off state to the on state.

[0012] In some embodiments, the range hood includes a power supply assembly, a first end of a first transistor is electrically connected to the power supply assembly, a second end of the first transistor is electrically connected to a motor body, a first end of a second transistor is electrically connected to the motor body, a second end of the second transistor is grounded, a first end of a third transistor is electrically connected to the motor body and a second end of the first transistor, respectively, and a second end of the third transistor is grounded;

[0013] and / or,

[0014] The first transistor and the third transistor are connected to the same second transistor to form a first path and a second path, respectively.

[0015] In some embodiments, the method further comprises:

[0016] When the first path is in a cut-off state and the second path is in a conducting state, detecting whether the panel continues to move;

[0017] When the panel continues to move, the second path is controlled to be continuously turned on.

[0018] In some implementations, obtaining a status signal of a panel assembly includes:

[0019] Sampling the current flowing through the motor body at a preset frequency to obtain current sampling data;

[0020] Based on the state signal, controlling the first path in the bridge circuit to switch from the on state to the off state, and controlling the second path in the bridge circuit to switch from the off state to the on state, comprises:

[0021] When the current value of the current sampling data is less than the current threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0022] In some implementations, when the current value of the current sampling data is less than the current threshold, controlling the first path to switch from the on state to the off state, and controlling the second path to switch from the off state to the on state, includes:

[0023] When the current value of the current sampling data is less than the fluctuation range threshold of the current threshold, and / or when the time during which the current value of the current sampling data is less than the current threshold exceeds the time threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0024] In some embodiments, the range hood includes a position sensor, and obtaining a status signal of the panel assembly includes:

[0025] Using a position sensor to obtain a position signal of the panel;

[0026] Based on the state signal, controlling the first path in the bridge circuit to switch from the on state to the off state, and controlling the second path in the bridge circuit to switch from the off state to the on state, comprises:

[0027] When the position signal is less than the position threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0028] In a second aspect, a range hood control device is also provided, which is applied to the range hood control method as described above, and the control device comprises:

[0029] An acquisition unit, used for acquiring a status signal of a panel component;

[0030] A state control unit is used to control the first path in the bridge circuit to switch from an on state to an off state, and to control the second path in the bridge circuit to switch from an off state to an on state based on a state signal, wherein the motor body is connected in series in the first path and the second path respectively, one end of the first path is used to access a power signal, and the other end is used for grounding, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in an on state, so as to shorten the buffer time when the motor body stops running.

[0031] In a third aspect, an electronic device is also provided, including a processor and a memory, wherein the memory stores computer program instructions, and the computer program instructions are used to execute the range hood control method as described above when the processor is running.

[0032] In a fourth aspect, a storage medium is also provided, on which program instructions are stored, and the program instructions are used to execute the range hood control method as described above when running.

[0033] In a fifth aspect, a range hood is also provided, comprising:

[0034] An electronic device as described above.

[0035] In an embodiment of the present application, it is possible to determine when to switch modes based on a status signal of the panel assembly, for example, by controlling the on and off states of the first and second pathways in the above embodiment. In the braking mode, the second pathway can quickly consume the electrical energy of the motor body through the internal resistance of the components provided in the pathway, ensuring that the panel reaches the desired position in a shorter time. The self-locking force of the motor can be compensated without changing the hardware structure of the range hood. After the self-locking force of the motor becomes larger, the panel can be more effectively restrained from sagging, so that the panel can be precisely positioned to avoid affecting the smoking effect of the range hood.

[0036] The range hood control method of the present invention, and other advantages, objectives and features of the present invention will be reflected in part through the following description, and will also be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0040] Figure 1 A schematic structural block diagram of a range hood provided in an embodiment of the present application;

[0041] Figure 2 A schematic flow chart of a range hood control method provided in an embodiment of the present application;

[0042] Figure 3 A schematic structural block diagram of a motor provided in an embodiment of the present application;

[0043] Figure 4 A schematic circuit diagram of a motor provided in an embodiment of the present application;

[0044] Figure 5 A schematic circuit diagram of another motor provided in an embodiment of the present application;

[0045] Figure 6 A schematic block diagram of a control device provided in an embodiment of the present application;

[0046] Figure 7 A schematic block diagram of an electronic device provided in an embodiment of the present application;

[0047] Figure 8 A schematic structural block diagram of a range hood provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0051] In order to solve the above technical problem, according to the first aspect of the present application, a range hood control method is proposed. Figure 1 A schematic structural block diagram of a panel assembly provided in an embodiment of the present application. For example, refer to Figure 1The range hood may include a panel assembly 100, and the panel assembly 100 may include a motor 110 and a panel 120. The motor 110 is used to drive the movement of the panel 120. The motor 110 may include a motor body 111 and a drive circuit 112, wherein the drive circuit 112 may include a bridge circuit 112-1. It should be noted that a certain amount of oil will accumulate inside the range hood after use. In order to prevent the oil inside the range hood from emitting odor when the range hood is not in use, an openable and closable panel may be provided outside the air inlet of the range hood. Reference Figure 1 Before the range hood starts smoking, the motor 110 can be used to drive the panel 120 to open. The degree of opening can be specifically limited according to experience or actual needs, and is not limited here. In this way, the air inlet of the range hood is in an open state, so that the range hood performs normal smoking. Before the range hood is closed after the operation, the motor 110 is used to drive the panel 120 to close. The panel 120 in the closed state can cover the air inlet of the range hood, preventing the odor from being emitted and increasing the aesthetics of the range hood.

[0052] Figure 2 A schematic flow chart of a range hood control method provided in an embodiment of the present application. Figure 2 , method 200 may include the following steps.

[0053] Step S210, obtaining a status signal of the panel assembly.

[0054] Exemplarily, the state signal of the panel assembly can be obtained by a signal acquisition device such as a sensor. The state signal of the panel assembly can include a state signal of a motor, for example, a state signal of a motor indicating the current flowing through the motor can be obtained by a current sensor. The state signal of the panel assembly can also include a state signal of a panel, for example, a state signal of a panel indicating the position of the panel can be obtained by a position sensor.

[0055] Step S220, based on the state signal, control the first path in the bridge circuit to switch from the on state to the off state, and control the second path in the bridge circuit to switch from the off state to the on state, wherein the motor body is connected in series in the first path and the second path respectively, one end of the first path is used to access the power signal, and the other end is used for grounding, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in the on state.

[0056] For example, see Figure 1, the motor 110 is used to drive the movement of the panel 120. Therefore, the state signal of the motor and the state signal of the panel can both reflect whether the movement of the panel 120 is in place. Among them, the panel is in place can mean that the current position of the panel has met the deceleration condition, and it can start to decelerate, switching from the normal movement mode to the braking mode. The movement speed of the panel in the braking mode is less than the movement speed of the panel in the normal movement mode. In the braking mode, the panel can gradually decelerate until it stops moving.

[0057] Figure 3 A schematic structural block diagram of a motor provided in an embodiment of the present application. For example, refer to Figure 3 The bridge circuit 112-1 may include a first path 112-11 and a second path 112-12. One end of the first path 112-11 is used to access the power signal Vbat, and the other end is used to connect to the ground GND. The motor body 111 is connected in series to the first path 112-11. The motor body 111 is also connected in series to the second path 112-12, and the second path 112-12 includes a grounding point.

[0058] Exemplary, reference Figure 3 When the range hood starts to run and is turned on using the motor control panel, the first path 112-11 in the bridge circuit is in the on state, and the second path 112-12 in the bridge circuit is in the off state. When it is determined according to the status signal that the panel is in place, the first path 112-11 in the bridge circuit is controlled to switch from the on state to the off state, and the motor body no longer receives power supply from the power signal. At the same time, the second path 112-12 in the bridge circuit is also controlled to switch from the off state to the on state. Figure 3 In the illustrated embodiment, when the second path is turned on and the second path is an annular path, since the power supply is not connected therein, the second path can be used to consume the electric energy of the motor body 111 connected in series therein when it is turned on. When the electric energy of the motor body 111 is completely consumed, the motor body 111 stops rotating. At the moment when the motor body 111 stops rotating, the self-locking force of the motor body 111 is converted from dynamic friction to static friction, and the static friction is much greater than the dynamic friction, thereby increasing the self-locking force of the motor body 111, thereby inhibiting the motor body 111 from continuing to run. When the motor body 111 stops rotating and no longer provides electric energy to the panel, the panel stops moving.

[0059] In the embodiment of the present application, it is possible to determine when to switch modes based on the status signal of the panel assembly, for example, by controlling the on and off states of the first and second pathways in the above embodiment. In the braking mode, the second pathway can consume the electric energy of the motor body through the internal resistance of the components arranged in the pathway. The self-locking force of the motor can be compensated without changing the hardware structure of the range hood. When the self-locking force of the motor increases, the panel drooping can be more effectively suppressed, and the panel can be precisely positioned to avoid affecting the smoking effect of the range hood.

[0060] In some embodiments, the second path is used to shorten a buffer time when the motor body stops running in the on state.

[0061] For example, see Figure 3 , the second path is not connected to the power supply. When the second path is in the on state, the electric energy of the motor body can be quickly consumed through the internal resistance of the components arranged in the second path, so that the motor body stops rotating in a shorter time, shortening the buffer time for the motor body to stop running, and ensuring that the panel reaches the desired position in a shorter time.

[0062] In some embodiments, the first path may include a first transistor and a second transistor, and the second path may include a second transistor and a third transistor. Controlling the first path in the bridge circuit to switch from an on state to an off state, and controlling the second path in the bridge circuit to switch from an off state to an on state may include: controlling the first transistor to switch from an on state to an off state, controlling the third transistor to switch from an off state to an on state, and controlling the second transistor to be in an on state, so that the first path switches from an on state to an off state, and the second path switches from an off state to an on state.

[0063] Exemplarily, the first transistor and the second transistor in the first path are connected in series, and when the first path is in the on state, the first transistor and the second transistor are both in the on state. If the first transistor is switched from the on state to the off state, the first path can be controlled to switch from the on state to the off state, and the second transistor can still be in the on state or in the off state.

[0064] Exemplarily, the second transistor and the third transistor in the second path are connected in series, and when the second path is in the off state, at least one of the second transistor and the third transistor is in the off state. For example, the third transistor is in the off state and the second transistor is in the on state; for another example, the third transistor is in the on state and the second transistor is in the off state; for another example, the second transistor and the third transistor are both in the off state, and the second path can be in the off state. Controlling the second transistor and the third transistor to be in the on state at the same time can achieve controlling the second path to be in the on state.

[0065] Therefore, by controlling the on and off states of the transistors, the path state switching can be controlled to realize the mode conversion of the motor. The state control of the transistors is simple and easy, not prone to errors, and simplifies the logic control to a certain extent.

[0066] Figure 4 A schematic circuit diagram of a motor provided in an embodiment of the present application. Figure 5 A schematic circuit diagram of another motor provided in an embodiment of the present application. Figure 4 and Figure 5 In some embodiments, the range hood may include a power supply assembly 200, and the first end 1 of the first transistor Q1 is electrically connected to the power supply assembly 200. The power supply assembly 200 is used to provide a power signal Vbat to the first end 1 of the first transistor Q1. The second end 2 of the first transistor Q1 is electrically connected to the motor body 111. The first end of the second transistor Q2 is electrically connected to the motor body 111, and the second end of the second transistor Q2 is grounded GND. The first end of the third transistor Q3 is electrically connected to the motor body 111 and the second end 2 of the first transistor Q1, respectively, and the second end of the third transistor Q3 is grounded GND.

[0067] refer to Figure 4 and Figure 5, the first end 1 of the first transistor Q1 is used as the input end, the second end 2 of the first transistor Q1 is used as the output end, and the third end 3 of the first transistor Q1 is used as the control end. Taking the first transistor Q1 as an example, the first end 1 of the first transistor Q1 can be one of the source and the drain, the second end of the first transistor Q1 can be the other of the source and the drain, and the third end 3 of the first transistor Q1 can be the gate. The ends of the second transistor Q2 and the third transistor Q3 can be the same type of electrodes as the corresponding ends of the first transistor Q1, and will not be repeated here for the sake of brevity. Exemplarily, the power supply component 200 provides a power signal Vbat to the first end 1 of the first transistor Q1 in the first path, and the third end 3 of the first transistor Q1 can be used to receive a control signal sent by the controller of the smoke machine, so as to realize the conduction or cutoff between the first end 1 and the second end 2 of the first transistor Q1 under the action of the control signal. When the first transistor Q1 is in the on state, the power signal Vbat can be provided to the motor body 111 via the first end 1 and the second end 2 of the first transistor Q1. The motor body 111 is also electrically connected to the second transistor Q2, and the second end of the second transistor Q2 is grounded. Based on the same working principle, when the second transistor Q2 is also in the on state, the first path is turned on, the motor body 111 starts to run, and can drive the panel to move. Until under the action of the control signal, the first transistor Q1 is turned off, and the second transistor Q2 remains in the on state, so that the first path is in the off state, and the motor body 111 no longer receives the power signal Vbat. At the same time, under the action of the control signal, the third transistor Q3, which was originally in the off state, is switched to the on state, and the second transistor Q2 remains in the on state, and the second path is in the on state at this time. The motor body 111 is connected in series in the loop of the second path, and the internal resistance of the second transistor Q2 and the third transistor Q3 is used to gradually consume the electric energy of the motor body 111. In this process, the motor body 111 can drive the panel to decelerate. When the electric energy of the motor body 111 is completely consumed, the motor body 111 stops running, the motor body 111 no longer provides kinetic energy for the panel, and the panel stops moving. When the motor body 111 stops running, the self-locking force of the motor body 111 is converted from dynamic friction to static friction, and the static friction is much greater than the dynamic friction, thereby increasing the self-locking force and better inhibiting the panel from continuing to move.

[0068] refer to Figure 4 and Figure 5 , diodes D1, D2, D3 and D4 are protection diodes of the four transistors, which can improve the stability of the transistors.

[0069] It should be noted that the above-mentioned control signal can be any reasonable signal generated by the controller of the range hood under the action of the signal received from the user or other devices, modules and electronic components, etc., for controlling the conduction or cutoff of the above-mentioned multiple transistors, and the control signal is not specifically limited here.

[0070] In some implementations, the second transistors included in the first path and the second path may be the same transistor or different transistors. Figure 4 and Figure 5 In the illustrated embodiment, the first transistor Q1 and the third transistor Q3 are connected to the same second transistor Q2 to form a first path and a second path, respectively. When the first transistor Q1 and the third transistor Q3 are connected to the same second transistor Q2, when the state of the first path or the second path is changed, the state of the shared second transistor Q2 can be kept unchanged, and only the state of the first transistor in the first path and the state of the third transistor in the second path can be changed. This can not only simplify the logic control, but also simplify the circuit structure and realize the reuse of the second transistor.

[0071] It should be noted that in Figure 4 and Figure 5 All transistors in the illustrated embodiment are field effect transistors. In the actual application of the technical solution involved in this application, the transistor can be any transistor having the same switching characteristics as the field effect transistor. Figure 4 and Figure 5 The circuit structure shown does not mean a specific limitation on the motor circuit structure. Figure 4 and Figure 5 The motor bodies 111 in the embodiment have opposite rotation directions. One of them is forward rotation and the other is reverse rotation. Figure 4 or Figure 5 Either method drives the motor body to rotate.

[0072] In some embodiments, the method may further include: when the first path is in an off state and the second path is in an on state, detecting whether the panel continues to move; and when the panel continues to move, controlling the second path to remain on.

[0073] Exemplarily, in combination with the foregoing, when the first passage is in the cut-off state and the second passage is in the on state, the range hood is in the braking mode, the motor body stops running, and the panel stops moving. In this case, it is possible to detect whether the panel continues to move by means of a sensor or other device set at the stop position of the panel. If the panel does not stop moving, the second passage is controlled to remain in the on state at this time, and the movement of the panel can drive the operation of the motor body. According to the principle of electromagnetic induction, the kinetic energy generated by the movement of the panel is converted into the electrical energy of the motor body. The electrical energy of the motor body can be consumed again by the internal resistance of the second transistor and the third transistor in the second passage. At the same time, according to Lenz's law, the motor body can generate a reverse Lorentz force, the direction of which is opposite to the direction of movement of the panel, which can offset the movement of the panel to a certain extent, lift the panel to the original panel stop position, and suppress the panel from sagging.

[0074] In some embodiments, acquiring the status signal of the panel assembly may include: sampling the current flowing through the motor body at a preset frequency to acquire current sampling data.

[0075] For example, a current acquisition module such as a sampling circuit can be used to periodically sample the current flowing through the motor body at a preset frequency, such as 2kHz-10kHz, to obtain current sampling data. The current sampling data includes multiple current values.

[0076] Based on the state signal, the first path in the bridge circuit is controlled to switch from the on state to the off state, and the second path in the bridge circuit is controlled to switch from the off state to the on state, including: when the current value of the current sampling data is less than the current threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0077] Exemplarily, multiple current values ​​in the current sampling data can be sorted according to the sampling time, and compared with the current threshold in the order of arrangement. The current threshold can be reasonably set according to experience or user needs, for example, it can be set to 700mA. When the current value in the current sampling data is less than the current threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0078] Since the motor body is used to drive the panel movement, the current flowing through the motor body can be judged to determine the time of switching the path state, thereby changing the driving mode of the panel movement. The current monitoring method has higher accuracy and can also monitor current changes. When abnormal conditions such as short circuit or leakage occur in the circuit, they can be discovered and handled in time.

[0079] In some implementations, when the current value of the current sampling data is less than the current threshold, controlling the first path to switch from the on state to the off state, and controlling the second path to switch from the off state to the on state, includes:

[0080] When the current value of the current sampling data is less than the fluctuation range threshold of the current threshold, and / or when the time during which the current value of the current sampling data is less than the current threshold exceeds the time threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0081] Exemplarily, considering the normal fluctuation of voltage, a fluctuation range threshold is set for the current threshold. For example, when the current threshold is set to 700mA, the fluctuation range threshold set for the current threshold can be, for example, ±50mA. Exemplarily, when the current value of the current sampling data is less than 700mA±50mA, the first path can be controlled to switch from the on state to the off state, and the second path can be controlled to switch from the off state to the on state. Exemplarily, in order to reduce the sampling error caused by voltage mutation and the like, a time threshold of, for example, 200ms can also be set. When the current value of the current sampling data is less than 700mA for more than 200ms, it can be considered that the current values ​​of multiple consecutive sampling points are all less than 700mA. At this time, the first path can be controlled to switch from the on state to the off state, and the second path can be controlled to switch from the off state to the on state. Exemplarily, in order to further improve the accuracy of the judgment result of the current sampling data, the above-mentioned fluctuation range threshold and time threshold can be set at the same time. For example, when the current value of the current sampling data is less than 700 mA±50 mA for more than 200 ms, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0082] For example, the timing can be started when the panel starts to move, and the current of the motor body can be monitored in real time when the timing time reaches a preset time, such as 76ms. When the current of the motor body is greater than 0.62A and the current fluctuation is less than 3AD, it can indicate that the panel is in place. Among them, AD can indicate that analog-to-digital conversion is performed in the process of current sampling to obtain monitoring results.

[0083] Thus, the robustness of the execution conditions for state switching between the first path and the second path can be improved, the accuracy of the state switching result can be improved, and the effective stop of the panel can be ensured.

[0084] In some embodiments, the range hood includes a position sensor to obtain a status signal of the panel assembly, including: using the position sensor to obtain a position signal of the panel.

[0085] Exemplarily, a position sensor may be provided at a reasonable position in the movement range of the panel, and the position sensor is used to detect the current position of the panel and generate a position signal of the panel and send it to the controller of the range hood.

[0086] Based on the state signal, the first path in the bridge circuit is controlled to switch from the on state to the off state, and the second path in the bridge circuit is controlled to switch from the off state to the on state, including: when the position signal is less than the position threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

[0087] For example, when the position signal of the panel is less than a preset position threshold, such as 3mm, the first path can be controlled to switch from the on state to the off state, and the second path can be controlled to switch from the off state to the on state. The value corresponding to the position threshold can represent a position 3mm away from the panel stop position. In some embodiments, the position threshold can be set according to actual conditions or experience, not only to 3mm in the above example, but also to any reasonable value such as 1mm, 2mm, 4mm, 5mm, etc., which is not specifically limited here.

[0088] Therefore, it is possible to determine when to switch the path state by obtaining the panel's own position signal from a more intuitive perspective, so that the panel can slow down its movement and reduce the errors in the judgment results caused by possible energy loss during the energy conversion process.

[0089] According to a second aspect of the embodiments of the present application, a range hood control device is provided, which is applied to the range hood control method as described above. Figure 6 A schematic block diagram of a control device provided in an embodiment of the present application. For example, refer to Figure 6 , the apparatus 600 may include:

[0090] An acquisition unit 610 is used to acquire a status signal of a panel component;

[0091] The state control unit 620 is used to control the first path in the bridge circuit to switch from the on state to the off state, and to control the second path in the bridge circuit to switch from the off state to the on state based on the state signal, wherein the motor body is connected in series in the first path and the second path respectively, one end of the first path is used to access the power signal, and the other end is used for grounding, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in the on state.

[0092] According to a third aspect of the embodiments of the present application, an electronic device is also provided. Figure 7 A schematic block diagram of an electronic device provided in an embodiment of the present application. For example, refer to Figure 7The electronic device 700 may include a processor 710 and a memory 720, wherein the memory 720 stores computer program instructions, and the computer program instructions are used to execute the range hood control method as described above when the processor 710 is running.

[0093] In a fourth aspect of the embodiments of the present application, a storage medium is further provided, on which program instructions are stored, and the program instructions are used to execute the smoke machine control method as described above when running. The storage medium may include, for example, a storage component of a tablet computer, a hard disk of a computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disk read-only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer-readable storage medium may be any combination of one or more computer-readable storage media.

[0094] According to a fifth aspect of the embodiments of the present application, a range hood is also provided. Figure 8 This is a schematic structural block diagram of a range hood provided in an embodiment of the present application. Figure 8 The range hood 80 may include: a panel assembly 100, a power assembly 200, and the electronic device 700 as described above. The panel assembly 100 may include a motor 110 and a panel 120. The motor 110 is used to drive the movement of the panel 120. The motor 110 may include a motor body 111 and a drive circuit 112, wherein the drive circuit 112 may include a bridge circuit 112-1.

[0095] A person of ordinary skill in the art may understand the specific details and beneficial effects of the range hood control device, electronic device, storage medium and range hood by reading the above description of the range hood control method, which will not be described in detail here for the sake of brevity.

[0096] In the several embodiments provided in the present application, it should be understood that the disclosed devices and / or equipment can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0097] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0098] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0099] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0100] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A range hood control method, characterized in that: The range hood comprises a panel assembly, the panel assembly comprises a motor and a panel, the motor is used to drive the movement of the panel, the motor comprises a motor body and a drive circuit, the drive circuit comprises a bridge circuit, and the method comprises: Obtaining a status signal of the panel component; Based on the state signal, the first path in the bridge circuit is controlled to switch from the on state to the off state, and the second path in the bridge circuit is controlled to switch from the off state to the on state, wherein the motor body is connected in series in the first path and the second path respectively, one end of the first path is used to access the power signal, and the other end is used to ground, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in the on state; When the first path is in a cut-off state and the second path is in a conducting state, detecting whether the panel continues to move; When the panel continues to move, the movement of the panel drives the motor body to operate, and the kinetic energy generated by the movement of the panel is converted into the electric energy of the motor body, and the second path is controlled to be continuously turned on, and the electric energy of the motor body is consumed by the internal resistance of the second path, and the motor body generates a reverse Lorentz force opposite to the movement direction of the panel to offset the movement of the panel and lift the panel to the original stop position of the panel; The range hood includes a position sensor, and the step of obtaining a status signal of the panel assembly includes: Using the position sensor, obtaining a position signal of the panel; The controlling, based on the state signal, of switching the first path in the bridge circuit from the on state to the off state, and of switching the second path in the bridge circuit from the off state to the on state, comprises: When the position signal is less than the position threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

2. The range hood control method according to claim 1, characterized in that: The second path is used to shorten the buffer time of stopping the operation of the motor body in the conducting state.

3. The range hood control method according to claim 1, characterized in that: The first path includes a first transistor and a second transistor, and the second path includes the second transistor and a third transistor; The controlling the first path in the bridge circuit to switch from an on state to an off state, and the controlling the second path in the bridge circuit to switch from an off state to an on state, comprises: The first transistor is controlled to switch from an on state to an off state, the third transistor is controlled to switch from an off state to an on state, and the second transistor is controlled to be in an on state, so that the first path is switched from an on state to an off state, and the second path is switched from an off state to an on state.

4. The range hood control method according to claim 3, characterized in that: The range hood comprises a power supply assembly, a first end of the first transistor is electrically connected to the power supply assembly, a second end of the first transistor is electrically connected to the motor body, a first end of the second transistor is electrically connected to the motor body, a second end of the second transistor is grounded, a first end of the third transistor is electrically connected to the motor body and a second end of the first transistor respectively, and a second end of the third transistor is grounded; and / or, The first transistor and the third transistor are connected to the same second transistor to form the first path and the second path, respectively.

5. The range hood control method according to claim 1, characterized in that: The obtaining of the status signal of the panel component comprises: Sampling the current flowing through the motor body at a preset frequency to obtain current sampling data; The controlling, based on the state signal, of switching the first path in the bridge circuit from the on state to the off state, and of switching the second path in the bridge circuit from the off state to the on state, comprises: When the current value of the current sampling data is less than the current threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

6. The range hood control method according to claim 5, characterized in that: When the current value of the current sampling data is less than the current threshold, controlling the first path to switch from the on state to the off state, and controlling the second path to switch from the off state to the on state, comprises: When the current value of the current sampling data is less than the fluctuation range threshold of the current threshold, and / or when the time during which the current value of the current sampling data is less than the current threshold exceeds a time threshold, the first path is controlled to switch from an on state to an off state, and the second path is controlled to switch from an off state to an on state.

7. A range hood control device, characterized in that: The range hood control method according to any one of claims 1 to 6, wherein the control device comprises: An acquisition unit, used for acquiring a status signal of the panel assembly; A state control unit, for controlling the first path in the bridge circuit to switch from an on state to an off state, and controlling the second path in the bridge circuit to switch from an off state to an on state based on the state signal, wherein the motor body is connected in series to the first path and the second path respectively, one end of the first path is used to access a power signal, and the other end is used to be grounded, the second path is a ring path, the second path includes a grounding point, and the second path is used to consume the electric energy of the motor body when it is in an on state; When the first path is in a cut-off state and the second path is in a conducting state, detecting whether the panel continues to move; When the panel continues to move, the movement of the panel drives the motor body to operate, and the kinetic energy generated by the movement of the panel is converted into the electric energy of the motor body, and the second path is controlled to be continuously turned on, and the electric energy of the motor body is consumed by the internal resistance of the second path, and the motor body generates a reverse Lorentz force opposite to the movement direction of the panel to offset the movement of the panel and lift the panel to the original stop position of the panel; The range hood includes a position sensor, and the step of obtaining a status signal of the panel assembly includes: Using the position sensor, obtaining a position signal of the panel; The controlling, based on the state signal, of switching the first path in the bridge circuit from the on state to the off state, and of switching the second path in the bridge circuit from the off state to the on state, comprises: When the position signal is less than the position threshold, the first path is controlled to switch from the on state to the off state, and the second path is controlled to switch from the off state to the on state.

8. An electronic device, characterized in that: It comprises a processor and a memory, wherein the memory stores computer program instructions, and the computer program instructions are used to execute the range hood control method according to any one of claims 1 to 6 when the processor is running.

9. A storage medium having program instructions stored thereon, wherein the program instructions are used to execute the range hood control method according to any one of claims 1 to 6 when running.

10. A range hood, characterized in that: include: The electronic device as claimed in claim 8.

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