Smoke screen and its control device, method and extractor hood

Abstract

The present disclosure provides a smoke screen and its control device, method and range hood, the control device comprising a parameter detection module, a voltage adjustment module and a controller; the parameter detection module is used for detecting the current operating parameter of the target equipment in the range hood and sending it to the controller; the controller is used for generating a voltage adjustment instruction and sending it to the voltage adjustment module when the current operating parameter does not meet the preset operating parameter; the voltage adjustment module is used for adjusting the current driving voltage output to the motor driving module to the target driving voltage based on the voltage adjustment instruction; the brush motor is used for outputting the rotating speed corresponding to the target driving voltage, so that the current operating state of the smoke screen meets the preset operating state. The present disclosure realizes stepless adjustment of the current driving voltage, can automatically and real-timely adjust the current operating state of the smoke screen, and improves the user experience.

Description

Technical Field

[0001] This disclosure relates to the field of home appliance technology, and in particular to smoke barriers and their control devices, methods, and range hoods. Background Technology

[0002] Existing range hoods, especially side-draft range hoods, all have a movable smoke barrier (also known as a smoke baffle). The smoke barrier is basically driven by a push rod, which is generally driven by a 12-volt (constant drive voltage) brushed (DC) motor. By controlling the motor to operate, the push rod connected to the smoke barrier is moved to extend and retract, thereby pushing the smoke barrier to open and close.

[0003] However, under low temperatures or after prolonged use and oil accumulation (in some regions and with certain types of highly viscous oil), the resistance of the hinge between the push rod and the smoke barrier increases, and the weight of the smoke barrier changes. This leads to increased resistance in the push rod's movement, making it unable to drive the smoke barrier to operate according to the preset operating state. This results in a slower operating speed, especially when the motor's running time is fixed. In such cases, the smoke barrier may not fully open or close, and the current operating state of the smoke barrier cannot be automatically and in real-time adjusted, requiring manual intervention or maintenance. The push rod can also be driven by a brushless motor, which allows for stepless speed regulation; however, brushless motors are more expensive and have a more complex control process. Summary of the Invention

[0004] The technical problem to be solved by this disclosure is to overcome the shortcomings of existing technologies where brushed motors use constant voltage drive and cannot automatically and in real time adjust the current operating state of the smoke barrier, resulting in a poor user experience. This disclosure provides a smoke barrier, its control device, method, and range hood.

[0005] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0006] In a first aspect, a control device for a smoke barrier is provided, which is applied to the smoke barrier of a range hood. The smoke barrier includes a brushed motor, a push rod, and a motor drive module. The motor drive module is used to drive the brushed motor to operate. The brushed motor is used to drive the push rod to perform telescopic movement, so as to push the smoke barrier connected to the push rod to perform opening and closing movement.

[0007] The control device includes a parameter detection module, a voltage regulation module, and a controller;

[0008] The voltage regulation module, the motor drive module, and the brushed motor are electrically connected in sequence, and the voltage regulation module and the controller are electrically connected.

[0009] The parameter detection module is used to detect the current operating parameters of the target device in the range hood and send them to the controller;

[0010] The target device includes the smoke barrier and / or the brushed motor;

[0011] The controller is used to generate a voltage regulation command and send it to the voltage regulation module when the current operating parameters do not meet the preset operating parameters;

[0012] The voltage regulation module is used to adjust the current drive voltage output to the motor drive module to the target drive voltage based on the voltage regulation command;

[0013] The brushed motor is used to output a rotational speed corresponding to the target driving voltage, so that the current operating state of the smoke barrier conforms to the preset operating state.

[0014] Preferably, when the target device is the brushed motor, the current operating parameter is the current speed of the brushed motor, and the preset operating parameter is the preset speed of the brushed motor;

[0015] The controller is used to generate the voltage adjustment command when the current speed does not conform to the preset speed, so as to make the current speed of the brushed motor conform to the preset speed;

[0016] The current driving voltage and the current rotational speed are in one-to-one correspondence.

[0017] Preferably, when the target device is the smoke barrier, the current operating parameter is the current operating speed of the smoke barrier, and the preset operating parameter is the preset operating speed of the smoke barrier;

[0018] The controller is used to generate the voltage adjustment command when the current operating speed does not meet the preset operating speed, so as to make the current operating speed of the smoke barrier meet the preset operating speed;

[0019] The current driving voltage and the current operating speed are in one-to-one correspondence.

[0020] Preferably, when the target device is the smoke barrier, the current operating parameter is the current operating position of the smoke barrier, and the preset operating parameter is the preset operating position of the smoke barrier;

[0021] The controller is used to generate the voltage adjustment command when the current operating position does not conform to the preset operating position, so as to make the current operating position of the smoke barrier conform to the preset operating position.

[0022] Preferably, the controller is configured to generate a first adjustment command when the current operating parameter is greater than the preset operating parameter set range, so as to reduce the current driving voltage to the target driving voltage;

[0023] The controller is used to generate a second adjustment command when the current operating parameter is less than the set range of the preset operating parameter, so as to increase the current driving voltage to the target driving voltage.

[0024] Preferably, the voltage regulation module includes a power supply unit and a voltage regulation unit;

[0025] The power supply unit is electrically connected to an external power source and is used to supply power to the voltage regulation unit.

[0026] The voltage regulation unit is electrically connected to the controller and the motor drive module respectively. The voltage regulation unit is used to adjust the current drive voltage to the target drive voltage based on the voltage regulation command and output it to the motor drive module.

[0027] Secondly, a control method for a smoke barrier is also provided, the control method being implemented based on the aforementioned control device for the smoke barrier, the control method comprising:

[0028] Obtain the current operating parameters of the target device in the range hood;

[0029] The target device includes the smoke barrier and / or a brushed motor;

[0030] When the current operating parameters do not conform to the preset operating parameters, a voltage adjustment command is generated;

[0031] Based on the voltage adjustment command, the current driving voltage is adjusted to the target driving voltage;

[0032] Output the rotational speed corresponding to the target driving voltage so that the current operating state of the smoke barrier conforms to the preset operating state.

[0033] Preferably, the step of generating a voltage regulation command when the current operating parameters do not meet the preset operating parameters includes:

[0034] Determine whether the current operating parameters are greater than the preset operating parameter range;

[0035] If it is greater than the target driving voltage, a first adjustment command is generated to reduce the current driving voltage to the target driving voltage.

[0036] If it is less than the target driving voltage, a second adjustment command is generated to increase the current driving voltage to the target driving voltage.

[0037] Thirdly, a smoke barrier is also provided, which includes a brushed motor, a push rod and a motor drive module, as well as the control device for the smoke barrier described above.

[0038] Fourthly, a range hood is also provided, the range hood including the aforementioned smoke barrier.

[0039] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.

[0040] The positive and progressive effects of this disclosure are as follows:

[0041] This disclosure discloses a smoke barrier, its control device, method, and range hood. By setting a parameter detection module to detect the current operating parameters of the target device within the range hood, and generating a voltage adjustment command when the current operating parameters do not conform to preset operating parameters, the current driving voltage of the motor drive module is adjusted based on the voltage adjustment command. A target driving voltage is then output to power the motor drive module, driving it to output a speed corresponding to the target driving voltage, thus ensuring that the current operating state of the smoke barrier conforms to the preset operating state. This achieves stepless adjustment of the current driving voltage, thereby adjusting the current speed of the brushed motor, ultimately ensuring that the current operating state of the smoke barrier conforms to the preset operating state. The control device for the smoke barrier is low-cost and can automatically and in real-time adjust the current operating state of the smoke barrier. When the current operating state of the smoke barrier does not meet the requirements, no manual intervention or maintenance is required, improving the user experience. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the control device for the smoke barrier provided in Embodiment 1 of this disclosure;

[0043] Figure 2 This is a first flowchart illustrating the control method for a smoke barrier provided in Embodiment 2 of this disclosure;

[0044] Figure 3 This is a second flowchart illustrating the control method for the smoke barrier provided in Embodiment 2 of this disclosure;

[0045] Figure 4 This is a schematic diagram of the structure of the smoke barrier provided in Embodiment 3 of this disclosure;

[0046] Figure 5 This is a schematic diagram of the structure of the range hood provided in Embodiment 4 of this disclosure. Detailed Implementation

[0047] The present disclosure is further illustrated below by way of embodiments, but the present disclosure is not limited to the scope of the embodiments described herein.

[0048] Example 1

[0049] This embodiment provides a control device for a smoke barrier, which is applied to the smoke barrier of a range hood, such as... Figure 1 As shown, the smoke barrier includes a brushed motor 1, a push rod, and a motor drive module 2. The motor drive module 2 is used to drive the brushed motor 1 to operate. The brushed motor 1 is used to drive the push rod to extend and retract, so as to push the smoke barrier connected to the push rod to open and close. The control device includes a parameter detection module 3, a voltage regulation module 4, and a controller 5.

[0050] The voltage regulation module 4, the motor drive module 2 and the brushed motor 1 are electrically connected in sequence, and the voltage regulation module 4 and the controller 5 are electrically connected.

[0051] The parameter detection module 3 is used to detect the current operating parameters of the target device in the range hood and send them to the controller 5;

[0052] Controller 5 is used to generate a voltage regulation command and send it to voltage regulation module 4 when the current operating parameters do not meet the preset operating parameters;

[0053] The voltage regulation module 4 is used to adjust the current drive voltage output to the motor drive module to the target drive voltage based on the voltage regulation command;

[0054] The brushed motor 1 is used to output a rotational speed corresponding to the target drive voltage so that the current operating state of the smoke barrier meets the preset operating state.

[0055] Among them, the target equipment in the range hood includes, but is not limited to, smoke barriers and brushed motors.

[0056] The smoke barrier is connected to a brushed motor via a push rod. One end of the push rod is connected to the smoke barrier, and the other end is connected to the brushed motor. The motor drive module is electrically connected to the brushed motor, providing power to the brushed motor and controlling its operation, such as controlling the motor's speed, forward or reverse rotation. When the brushed motor is running, it can drive the push rod to extend and retract, which in turn pushes the smoke barrier to open and close.

[0057] After prolonged use, range hoods accumulate grease, increasing the resistance of the hinge between the push rod and the smoke barrier. This increased resistance prevents the push rod from operating smoothly enough to drive the smoke barrier to its preset state, resulting in slower operation. In some models, the smoke barrier may not open or close completely. Therefore, it's necessary to monitor the smoke barrier's current operating status. If the smoke barrier is not operating according to the preset state, indicating abnormal operation, its current state should be adjusted promptly. Since the brushed motor's speed is related to the drive voltage, changing the drive voltage alters the brushed motor's speed, thereby changing the operating state of the smoke barrier connected to the push rod, ensuring that the smoke barrier's current operating state matches the preset state.

[0058] The voltage regulation module can steplessly adjust the current driving voltage within a certain range to obtain the target driving voltage.

[0059] The smoke barrier operates by opening and closing, and its operating states include operating speed and operating position (opening / closing angle). Specifically, the preset operating states can correspond to uniform speed throughout the entire movement, uniform speed in stages, variable speed movement, fully open or open to a certain angle, or fully closed.

[0060] The control device for the smoke barrier in this embodiment achieves stepless adjustment of the current driving voltage. By adjusting the current driving voltage, the current speed of the brushed motor is adjusted, ensuring that the current operating state of the smoke barrier conforms to the preset operating state. The control device for the smoke barrier has low cost and can automatically and in real-time adjust the current operating state of the smoke barrier, improving the user experience.

[0061] In an optional implementation, when the target device is a brushed motor, the current operating parameter is the current speed of the brushed motor, and the preset operating parameter is the preset speed of the brushed motor;

[0062] The controller is used to generate a voltage regulation command when the current speed does not meet the preset speed, so as to make the current speed of the brushed motor meet the preset speed.

[0063] The current driving voltage and the current rotational speed are in one-to-one correspondence.

[0064] In this embodiment, the target device is a brushed motor. The parameter detection module is used to detect the current operating parameters of the brushed motor, that is, the current speed of the brushed motor. If the current speed does not meet the preset speed, a voltage adjustment command needs to be generated to adjust the current driving voltage output to the motor drive module to the target driving voltage, thereby adjusting the speed of the brushed motor and changing the current operating speed or position of the smoke barrier so that the current operating state of the smoke barrier meets the preset operating state.

[0065] For example, the preset operating state is to open to the maximum angle at a preset operating speed V1. However, during the opening process, due to oil accumulation, the current operating speed of the smoke barrier is less than the preset operating speed V1. Since the smoke barrier and the brushed motor are connected through a transmission component, the current speed of the brushed motor will decrease synchronously. At this time, the current speed of the brushed motor is lower than the preset speed, the current operating speed of the smoke barrier slows down, and the opening process takes longer. The current operating state of the smoke barrier does not conform to the preset operating state. Therefore, it is necessary to adjust the drive voltage to make the brushed motor run at the preset speed, thereby changing the current operating speed or position of the smoke barrier, so that the smoke barrier opens to the maximum angle at a preset operating speed V1, and the current operating state of the smoke barrier conforms to the preset operating state.

[0066] The parameter detection module can be a sensor, such as a Hall sensor, an infrared sensor, and an image sensor.

[0067] There is a one-to-one correspondence between the current drive voltage of the motor drive module, the current speed of the brushed motor, and the current operating speed of the smoke barrier.

[0068] The control device for the smoke barrier in this embodiment detects the current speed of the brushed motor and generates a voltage adjustment command when the current speed does not meet the preset speed, thereby realizing stepless adjustment of the current driving voltage. By adjusting the current driving voltage, the current speed of the brushed motor is adjusted, so that the current operating state of the smoke barrier meets the preset operating state. It can automatically and in real time adjust the current operating state of the smoke barrier, improving the user experience.

[0069] In an optional implementation, when the target device is a smoke barrier, the current operating parameter is the current operating speed of the smoke barrier, and the preset operating parameter is the preset operating speed of the smoke barrier.

[0070] The controller is used to generate a voltage adjustment command when the current operating speed does not meet the preset operating speed, so as to make the current operating speed of the smoke barrier meet the preset operating speed;

[0071] The current driving voltage and the current operating speed are in one-to-one correspondence.

[0072] In this embodiment, the target device is a smoke barrier. The parameter detection module is used to detect the operating parameters of the smoke barrier, namely the current operating speed of the smoke barrier. If the current operating speed does not meet the preset operating speed, a voltage adjustment command needs to be generated to adjust the current driving voltage output to the motor drive module to the target driving voltage, thereby adjusting the speed of the brushed motor so that the current operating speed of the smoke barrier meets the preset operating speed, thereby changing the current operating state of the smoke barrier so that the current operating state of the smoke barrier meets the preset operating state.

[0073] For example, the preset operating state is to open at a constant speed of V1. However, during the opening process, due to oil accumulation, the current operating speed of the smoke barrier is lower than the preset operating speed V1, increasing the opening time. At this time, the current operating speed of the smoke barrier does not meet the preset operating speed, resulting in the current operating state of the smoke barrier not conforming to the preset operating state. Therefore, it is necessary to adjust the drive voltage to make the brushed motor run at a preset speed, so that the current operating speed of the smoke barrier conforms to the preset operating speed. By changing the current operating speed of the smoke barrier, the smoke barrier opens at a constant speed of V1, thus making the current operating state of the smoke barrier conform to the preset operating state.

[0074] Among them, the current driving voltage of the motor drive module, the current speed of the brushed motor, and the current operating speed of the smoke barrier have a one-to-one correspondence.

[0075] The control device for the smoke barrier in this embodiment detects the current operating speed of the smoke barrier. When the current operating speed does not meet the preset operating speed, it generates a voltage adjustment command, realizing stepless adjustment of the current driving voltage. By adjusting the current driving voltage, the current speed of the brushed motor is adjusted, thereby adjusting the current operating speed of the smoke barrier so that the current operating state of the smoke barrier meets the preset operating state. It can automatically and in real time adjust the current operating state of the smoke barrier, improving the user experience.

[0076] In an optional implementation, when the target device is a smoke barrier, the current operating parameter is the current operating position of the smoke barrier, and the preset operating parameter is the preset operating position of the smoke barrier.

[0077] The controller generates a voltage adjustment command when the current operating position does not conform to the preset operating position, so as to make the current operating position of the smoke barrier conform to the preset operating position.

[0078] In this embodiment, the target device is a smoke barrier. The parameter detection module is used to detect the operating parameters of the smoke barrier, namely the current operating position of the smoke barrier. If the current operating position does not conform to the preset operating position, a voltage adjustment command needs to be generated to adjust the current driving voltage output to the motor drive module to the target driving voltage, thereby adjusting the speed of the brushed motor so that the current operating position of the smoke barrier conforms to the preset operating position, thereby changing the current operating position of the smoke barrier so that the current operating state of the smoke barrier conforms to the preset operating state.

[0079] For example, the preset operating state is to open to the maximum angle. However, during the opening process, due to oil accumulation, the current operating speed of the smoke barrier is lower than the preset operating speed. After a set time, the brushed motor stops rotating, and the smoke barrier does not open to the preset maximum angle, resulting in incomplete opening. At this time, the current operating position of the smoke barrier does not conform to the preset operating position. Therefore, it is necessary to adjust the current driving voltage to the target driving voltage, and the brushed motor outputs a speed corresponding to the target driving voltage, thereby pushing the smoke barrier to open to the maximum angle. By changing the current operating position of the smoke barrier, the current operating state of the smoke barrier is made to conform to the preset operating state.

[0080] Similarly, when the preset operating state is completely closed, the current driving voltage can be adjusted to the target driving voltage, and the brushed motor outputs a speed corresponding to the target driving voltage, thereby driving the smoke barrier to close completely. By changing the current operating position of the smoke barrier, the current operating state of the smoke barrier can be made to conform to the preset operating state.

[0081] Among them, the current driving voltage of the motor drive module, the current speed of the brushed motor, and the current operating speed of the smoke barrier have a one-to-one correspondence.

[0082] The control device for the smoke barrier in this embodiment detects the current operating position of the smoke barrier. When the current operating position does not conform to the preset operating position, it generates a voltage adjustment command, realizing stepless adjustment of the current driving voltage. By adjusting the current driving voltage, the current speed of the brushed motor is adjusted, thereby adjusting the current operating speed of the smoke barrier, and further adjusting the current operating position of the smoke barrier, so that the current operating state of the smoke barrier conforms to the preset operating state. It can automatically and in real time adjust the current operating state of the smoke barrier, improving the user experience.

[0083] In an optional implementation, the controller is configured to generate a first adjustment command when the current operating parameter is greater than a preset operating parameter range, so as to reduce the current driving voltage to the target driving voltage;

[0084] The controller generates a second adjustment command to increase the current drive voltage to the target drive voltage when the current operating parameters are less than the preset operating parameters.

[0085] The value of the current operating parameter is positively correlated with the current driving voltage. If the current operating parameter is greater than the preset operating parameter range, for example, if the current operating parameter is greater than 20% of the preset operating parameter, then the value of the current operating parameter needs to be reduced. At this time, the first adjustment command needs to be generated to reduce the current driving voltage to the target driving voltage.

[0086] If the current operating parameter is less than the preset operating parameter range, for example, if the current operating parameter is less than 20% of the preset operating parameter, then the value of the current operating parameter needs to be increased. At this time, a second adjustment command needs to be generated to increase the current driving voltage to the target driving voltage.

[0087] If the current operating parameters are equal to the preset operating parameter range, for example, if the current operating parameters are equal to the preset operating parameters, then there is no need to adjust the current drive voltage.

[0088] The control device for the smoke barrier in this embodiment realizes stepless adjustment of the current driving voltage. By increasing or decreasing the current driving voltage, the current speed of the brushed motor is adjusted, thereby adjusting the current operating state of the smoke barrier so that the current operating state of the smoke barrier conforms to the preset operating state. It can automatically and in real time adjust the current operating state of the smoke barrier without human intervention to control the smoke barrier or perform maintenance, thus improving the user experience.

[0089] In an alternative implementation, such as Figure 1 As shown, the voltage regulation module 4 includes a power supply unit 41 and a voltage regulation unit 42;

[0090] The power supply unit 41 is electrically connected to an external power source and is used to supply power to the voltage regulation unit 42.

[0091] The voltage regulation unit 42 is electrically connected to the controller 5 and the motor drive module 2 respectively. The voltage regulation unit 42 is used to adjust the current drive voltage to the target drive voltage based on the voltage regulation command and output it to the motor drive module 2.

[0092] The power supply unit can be a switching power supply, also known as a switch-mode power supply, switching power supply, or switching converter. It is a high-frequency power conversion device and a type of power supply. Its function is to convert a voltage at a certain level into the voltage or current required by the user through different architectures. The input of the switching power supply is an external power source, such as an external AC power source (e.g., mains power) or an external DC power source, while the output is a device that requires DC power, such as the voltage regulation unit disclosed herein. The switching power supply performs voltage and current conversion to power the voltage regulation unit.

[0093] The voltage regulation unit is used to adjust the current driving voltage to the target driving voltage based on the voltage regulation command, and outputs it to the motor drive module, which controls the operation of the brushed motor.

[0094] The control device for the smoke barrier in this embodiment is electrically connected to an external power source through a power supply unit to supply power to a voltage regulation unit. Based on a voltage regulation command, the voltage regulation unit adjusts the current driving voltage to the target driving voltage and outputs it to the motor drive module, realizing stepless adjustment of the current driving voltage. This allows for automatic and real-time adjustment of the current operating state of the smoke barrier without the need for manual intervention to control or maintain the smoke barrier, thus improving the user experience.

[0095] Example 2

[0096] This embodiment provides a control method for a smoke barrier, which is implemented based on the control device for the smoke barrier in Embodiment 1, such as... Figure 2 As shown, the control methods include:

[0097] S101. Obtain the current operating parameters of the target device in the range hood.

[0098] The target equipment includes, but is not limited to, smoke barriers and brushed motors.

[0099] S102. When the current operating parameters do not meet the preset operating parameters, generate a voltage regulation command.

[0100] S103. Based on the voltage adjustment command, adjust the current driving voltage to the target driving voltage.

[0101] S104. Output the rotational speed corresponding to the target drive voltage so that the current operating state of the smoke barrier matches the preset operating state.

[0102] The control device for the smoke barrier is used in the smoke barrier of the range hood. The smoke barrier includes a brushed motor, a push rod, and a motor drive module. The motor drive module drives the brushed motor to operate, and the brushed motor drives the push rod to extend and retract, thereby pushing the smoke barrier connected to the push rod to open and close. The control device for the smoke barrier includes a parameter detection module, a voltage regulation module, and a controller. Step S101 can be implemented by the parameter detection module, step S102 can be implemented by the controller, step S103 can be implemented by the voltage regulation module, and step S104 can be implemented by the brushed motor.

[0103] In an alternative implementation, such as Figure 3 As shown, step S102 above includes:

[0104] S1021. Determine whether the current operating parameters are greater than the preset operating parameter setting range.

[0105] If it is greater than, then execute S1022; if it is less than, then execute S1023.

[0106] S1022, then generate a first adjustment command to reduce the current driving voltage to the target driving voltage.

[0107] S1023 generates a second adjustment command to increase the current driving voltage to the target driving voltage.

[0108] If the current operating parameters are equal to the preset operating parameter range, then there is no need to adjust the current drive voltage.

[0109] Since the motor speed of a brushed motor is related to the driving voltage, the current speed of the brushed motor can be adjusted by increasing or decreasing the current driving voltage, thereby adjusting the current operating state of the smoke barrier and making the current operating state of the smoke barrier conform to the preset operating state.

[0110] The control method of the smoke barrier in this embodiment corresponds to the control device of the smoke barrier in Embodiment 1, and the working principle is the same, so it will not be described again here.

[0111] The control method for the smoke barrier in this embodiment achieves stepless adjustment of the current driving voltage. By adjusting the current driving voltage, the current speed of the brushed motor is adjusted, ensuring that the current operating state of the smoke barrier conforms to the preset operating state. The control device for the smoke barrier is low in cost and can automatically and in real-time adjust the current operating state of the smoke barrier without requiring manual intervention to control or maintain it, thus improving the user experience.

[0112] Example 3

[0113] This embodiment provides a smoke barrier, such as Figure 4 As shown, the smoke barrier includes a brushed motor, a push rod and a motor drive module, as well as the control device for the smoke barrier in Embodiment 1.

[0114] The smoke barrier in this embodiment may also include other components.

[0115] The smoke barrier in this embodiment includes the control device of the smoke barrier in embodiment 1. Through the control device, the current driving voltage can be infinitely adjusted. By adjusting the current driving voltage, the current speed of the brushed motor can be adjusted, so that the current operating state of the smoke barrier conforms to the preset operating state. The current operating state of the smoke barrier can be automatically and in real time adjusted without human intervention to control the smoke barrier or perform maintenance, thus improving the user experience.

[0116] Example 4

[0117] This embodiment provides a range hood, such as Figure 5 As shown, the range hood includes the smoke barrier shown in Example 3.

[0118] The range hood in this embodiment may also include other components, such as the range hood housing and the range hood filter. The range hood in this embodiment includes the smoke barrier from embodiment 3, and the smoke barrier includes the control device for the smoke barrier from embodiment 1. Through the control device of the smoke barrier, stepless adjustment of the current driving voltage is achieved. By adjusting the current driving voltage, the current speed of the brushed motor is adjusted, ensuring that the current operating state of the smoke barrier conforms to the preset operating state. The control device for the smoke barrier has low cost and can automatically and in real-time adjust the current operating state of the smoke barrier without requiring manual intervention to control or maintain it, thus improving the user experience.

[0119] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A control device for a smoke barrier, characterized in that, In a smoke barrier used in a range hood, the smoke barrier includes a brushed motor, a push rod, and a motor drive module. The motor drive module is used to drive the brushed motor to operate, and the brushed motor is used to drive the push rod to extend and retract, so as to push the smoke barrier connected to the push rod to open and close. The control device includes a parameter detection module, a voltage regulation module, and a controller; The voltage regulation module, the motor drive module, and the brushed motor are electrically connected in sequence, and the voltage regulation module and the controller are electrically connected. The parameter detection module is used to detect the current operating parameters of the target device in the range hood and send them to the controller; The target device includes the smoke barrier and / or the brushed motor; The controller is used to generate a voltage regulation command and send it to the voltage regulation module when the current operating parameters do not meet the preset operating parameters; The voltage regulation module is used to adjust the current drive voltage output to the motor drive module to the target drive voltage based on the voltage regulation command; The brushed motor is used to output a rotational speed corresponding to the target driving voltage, so that the current operating state of the smoke barrier meets the preset operating state; The controller is used to generate a first adjustment command when the current operating parameter is greater than the preset operating parameter setting range, so as to reduce the current driving voltage to the target driving voltage; The controller is used to generate a second adjustment command when the current operating parameter is less than the set range of the preset operating parameter, so as to increase the current driving voltage to the target driving voltage; When the target device is the smoke barrier, the current operating parameter is the current operating speed of the smoke barrier, and the preset operating parameter is the preset operating speed of the smoke barrier; Alternatively, the current operating parameter is the current operating position of the smoke barrier, and the preset operating parameter is the preset operating position of the smoke barrier.

2. The control device according to claim 1, characterized in that, When the target device is the brushed motor, the current operating parameter is the current speed of the brushed motor, and the preset operating parameter is the preset speed of the brushed motor; The controller is used to generate the voltage adjustment command when the current speed does not conform to the preset speed, so as to make the current speed of the brushed motor conform to the preset speed; The current driving voltage and the current rotational speed are in one-to-one correspondence.

3. The control device according to claim 1, characterized in that, The controller is used to generate the voltage adjustment command when the current operating speed does not meet the preset operating speed, so as to make the current operating speed of the smoke barrier meet the preset operating speed; The current driving voltage and the current operating speed are in one-to-one correspondence.

4. The control device according to claim 1, characterized in that, The controller is used to generate the voltage adjustment command when the current operating position does not conform to the preset operating position, so as to make the current operating position of the smoke barrier conform to the preset operating position.

5. The control device according to claim 1, characterized in that, The voltage regulation module includes a power supply unit and a voltage regulation unit; The power supply unit is electrically connected to an external power source and is used to supply power to the voltage regulation unit. The voltage regulation unit is electrically connected to the controller and the motor drive module respectively. The voltage regulation unit is used to adjust the current drive voltage to the target drive voltage based on the voltage regulation command and output it to the motor drive module.

6. A control method for a smoke barrier, characterized in that, The control method is implemented based on the control device of the smoke barrier as described in any one of claims 1-5, and the control method includes: Obtain the current operating parameters of the target device in the range hood; The target device includes the smoke barrier and / or a brushed motor; When the current operating parameters do not conform to the preset operating parameters, a voltage adjustment command is generated; Based on the voltage adjustment command, the current driving voltage is adjusted to the target driving voltage; Output the rotational speed corresponding to the target driving voltage so that the current operating state of the smoke barrier conforms to the preset operating state; The step of generating a voltage regulation command when the current operating parameters do not meet the preset operating parameters includes: Determine whether the current operating parameters are greater than the preset operating parameter range; If it is greater than the target driving voltage, a first adjustment command is generated to reduce the current driving voltage to the target driving voltage. If it is less than the target driving voltage, a second adjustment command is generated to increase the current driving voltage to the target driving voltage. When the target device is the smoke barrier, the current operating parameter is the current operating speed of the smoke barrier, and the preset operating parameter is the preset operating speed of the smoke barrier; Alternatively, the current operating parameter is the current operating position of the smoke barrier, and the preset operating parameter is the preset operating position of the smoke barrier.

7. A smoke barrier, characterized in that, The smoke barrier includes a brushed motor, a push rod, and a motor drive module, as well as a control device for the smoke barrier as described in any one of claims 1-5.

8. A range hood, characterized in that, The range hood includes the smoke barrier as described in claim 7.

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