Guide plate control device of range hood and range hood

Abstract

The utility model discloses a guide plate control device of a range hood and the range hood. The guide plate control device of the range hood comprises a first side guide plate, a second side guide plate, a control module, a first side temperature monitoring module, a second side temperature monitoring module and a push rod motor module, the first side temperature monitoring module and the second side temperature monitoring module are respectively arranged at a first side position and a second side position of the range hood; the output end of the first side temperature monitoring module and the output end of the second side temperature monitoring module are electrically connected with the input end of the control module. The output end of the control module is electrically connected with the input end of the push rod motor module; the push rod motor module comprises a push rod unit, and the push rod unit is arranged in the range hood and is in rotatable contact with the first side guide plate and the second side guide plate. The corresponding flow guide plates can be automatically controlled to be opened according to the temperatures of the two sides of the range hood, smoke and oil smoke are accurately guided to enter the oil smoke suction port, and smoke and oil smoke diffusion is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a range hood guide plate control device and a range hood. BACKGROUND

[0002] The range hood is a kitchen appliance that most families need to use. The two side guide plates of the existing range hood are usually in a constant open state, and cannot flexibly change the guide direction of the oil smoke and smoke. For example, in the case of one side of the two side burners being turned on, the guide plates are fully open, and cannot accurately guide the oil smoke and smoke, which can easily cause indoor air pollution and affect user health. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a range hood guide plate control device and a range hood. The first side temperature monitoring module and the second side temperature monitoring module monitor the temperature on both sides of the range hood, respectively. The control module connected with the first side temperature monitoring module and the second side temperature monitoring module controls the push rod motor module to drive the first side guide plate and the second side guide plate to open or close according to the temperature on both sides of the range hood. The corresponding guide plate is automatically controlled to open according to the temperature on both sides of the range hood, accurately guiding the smoke and oil smoke into the oil smoke suction port, and avoiding the spread of smoke and oil smoke.

[0004] In one aspect, the present application provides a range hood guide plate control device, comprising a first side guide plate, a second side guide plate, a control module, a first side temperature monitoring module, a second side temperature monitoring module and a push rod motor module.

[0005] The first side guide plate and the second side guide plate are respectively arranged at the first side oil smoke suction port of the range hood and the first side oil smoke suction port of the range hood.

[0006] The first side temperature monitoring module and the second side temperature monitoring module are respectively arranged at the first side position of the range hood and the second side position of the range hood.

[0007] The output end of the first side temperature monitoring module and the output end of the second side temperature monitoring module are respectively electrically connected with the input end of the control module.

[0008] The output end of the control module and the input end of the push rod motor module are electrically connected.

[0009] The push rod motor module comprises a push rod unit, which is arranged inside the range hood and is in rotatable contact with the first side guide plate and the second side guide plate, respectively.

[0010] Preferably, the device further comprises an oil smoke monitoring module.

[0011] The oil smoke monitoring module is arranged at the middle position of the lower cavity of the range hood.

[0012] The output end of the oil fume monitoring module is connected with the input end of the control module.

[0013] Preferably, the first side temperature monitoring module comprises a first side temperature monitoring circuit and a first side temperature monitor, the first side temperature monitoring circuit comprises a first terminal, a first resistor, a second resistor, a first capacitor and a second capacitor;

[0014] The first side temperature monitoring circuit is connected with the first side temperature monitor through the first terminal;

[0015] The first resistor, the first capacitor and the second capacitor are connected in series, the first resistor and the second resistor are connected in series, and the first capacitor and the second capacitor are connected in parallel with the second resistor.

[0016] Preferably, the second side temperature monitoring module comprises a second side temperature monitoring circuit and a second side temperature monitor, the second side temperature monitoring circuit comprises a second terminal, a third resistor, a fourth resistor, a third capacitor and a fourth capacitor;

[0017] The second side temperature monitoring circuit is connected with the second side temperature monitor through the second terminal;

[0018] The third resistor, the third capacitor and the fourth capacitor are connected in series, the third resistor and the fourth resistor are connected in series, and the third capacitor and the fourth capacitor are connected in parallel with the fourth resistor.

[0019] Preferably, the oil fume monitoring module comprises an oil fume monitoring circuit and an oil fume monitor, the oil fume monitoring circuit comprises a third terminal, a monitoring power supply circuit connected with the control module and a communication circuit connected with the control module, the oil fume monitor is connected with the oil fume monitoring circuit through the third terminal, the monitoring power supply circuit comprises a fifth resistor, a fifth capacitor, a sixth capacitor and a triode, and the communication circuit comprises a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a seventh capacitor and an eighth capacitor.

[0020] Preferably, the push rod motor module further comprises a push rod control circuit.

[0021] The push rod control circuit comprises a motor drive chip, an advancing control circuit connected with a second pin of the motor drive chip, a retreating control circuit connected with a third pin of the motor drive chip, a current output circuit connected with a fourth pin and a seventh pin of the motor drive chip, a push rod power supply circuit connected with a fifth pin of the motor drive chip, a transient suppression circuit connected with a sixth pin and an eighth pin of the motor drive chip, and a fourth terminal connected with the push rod unit.

[0022] Preferably, the push rod power supply circuit comprises a ninth capacitor, a tenth capacitor and an eleventh capacitor connected in parallel with each other, and the transient suppression circuit comprises a first diode connected with the sixth pin and a second diode connected with the eighth pin.

[0023] Preferably, the current output circuit comprises a first circuit formed by a parallel connection of an eleventh resistor and a twelfth capacitor connected with the fourth pin, and a twelfth resistor connected in series with the first circuit, and the current output circuit further comprises a second circuit formed by a tenth resistor connected with the seventh pin.

[0024] Preferably, the control module is electrically connected with the forward control circuit and the backward control circuit respectively.

[0025] The forward control circuit comprises a thirteenth resistor and a thirteenth capacitor connected in parallel.

[0026] The backward control circuit comprises a fourteenth resistor and a fourteenth capacitor connected in parallel.

[0027] In another aspect, the application provides a range hood, comprising the range hood deflector control device according to any one of the above.

[0028] The application provides a range hood deflector control device and a range hood, which have the following beneficial effects:

[0029] The first side temperature monitoring module and the second side temperature monitoring module monitor the temperatures on both sides of the range hood respectively, and the control module connected with the first side temperature monitoring module and the second side temperature monitoring module controls the push rod motor module to drive the first side deflector and the second side deflector to open or close according to the temperatures on both sides of the range hood, so that the corresponding deflectors are automatically controlled to open according to the temperatures on both sides of the range hood, the smoke and the oil fume are accurately guided to enter the oil fume suction port, and the smoke and the oil fume are prevented from spreading. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0031] Figure 1 A structural schematic diagram of a range hood deflector control device provided by the embodiment of the present application is shown in the figure.

[0032] Figure 2 A circuit structural schematic diagram of a first side temperature monitoring circuit and a second side temperature monitoring circuit provided by the embodiment of the present application is shown in the figure.

[0033] Figure 3A circuit structure schematic diagram of an oil fume monitoring circuit provided by an embodiment of the present application is shown in the figure.

[0034] Figure 4 A circuit structure schematic diagram of a push rod control circuit provided by an embodiment of the present application is shown in the figure.

[0035] The following is a supplementary description of the drawings:

[0036] 100, an oil fume machine deflector control device; 1, a control module; 2, a first side temperature monitoring module; 3, a second side temperature monitoring module; 4, a push rod motor module; 5, an oil fume monitoring module; DETAILED DESCRIPTION

[0037] In order to enable personnel in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0038] The term "one embodiment" or "an embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one implementation of the present application. In the description of the application, it should be understood that the terms "upper", "lower", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. Moreover, the terms "first", "second" and the like are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0039] Please refer to Figure 1 , Figure 1 An oil fume machine deflector control device 100 provided by an embodiment of the present application includes a first side deflector, a second side deflector, a control module 1, a first side temperature monitoring module 2, a second side temperature monitoring module 3, and a push rod motor module 4.

[0040] The first side guide plate and the second side guide plate are respectively arranged at the first side oil fume suction port of the range hood and the first side oil fume suction port of the range hood.

[0041] The first side temperature monitoring module 2 and the second side temperature monitoring module 3 are respectively arranged at the first side position of the range hood and the second side position of the range hood.

[0042] The output end of the first side temperature monitoring module 2 and the output end of the second side temperature monitoring module 3 are respectively electrically connected with the input end of the control module 1.

[0043] The output end of the control module 1 and the input end of the push rod motor module 4 are electrically connected.

[0044] The push rod motor module 4 comprises a push rod unit, which is arranged inside the range hood and is rotatably contacted with the first side guide plate and the second side guide plate.

[0045] The control module 1 is used for controlling the push rod motor module 4 to drive the first side guide plate to be in one of the closed state and the open state according to the temperature of the first side of the range hood.

[0046] The control module 1 is also used for controlling the push rod motor module 4 to drive the second side guide plate to be in one of the closed state and the open state according to the temperature of the second side of the range hood.

[0047] Specifically, the control module 1 is used for controlling the push rod motor module 4 according to the temperature of the first side of the range hood and the temperature of the second side of the range hood, so that the first side guide plate of the range hood is opened or closed, and the second side guide plate of the range hood is opened or closed. The range hood guide plate control device 100 comprises the control module 1 and the push rod motor module 4 arranged inside the range hood, the first side temperature monitoring module 2 comprising a first side temperature monitoring circuit and a first side temperature monitor, the second side temperature monitoring module 3 comprising a second side temperature monitoring circuit and a second side temperature monitor, the first side temperature monitoring circuit and the second side temperature monitoring circuit being both installed inside the range hood and electrically connected with the control module 1. The first side temperature monitor and the second side temperature monitor are respectively arranged at both sides of the lower cavity of the range hood, and the positions where the first side temperature monitor and the second side temperature monitor are arranged can be in contact with air. The distance between the positions where the first side temperature monitor and the second side temperature monitor are arranged and the position of the gas stove is a preset distance, which is set according to actual conditions. The push rod motor module 4 comprises a push rod control circuit and a push rod unit, and the push rod control circuit is electrically connected with the control module 1.

[0048] In some embodiments, the push rod unit comprises a motor, a main push rod, and a first side push rod and a second side push rod arranged on the main push rod and arranged perpendicularly to the main push rod, and the first side push rod and the second side push rod are arranged perpendicularly. In the initial state, the first side push rod and the second side push rod are not in contact with the first side deflector and the second side deflector, so the initial state of the first side deflector and the second side deflector is the open state. The control module 1 controls the motor to rotate, and the motor drives the main push rod to rotate. When the angle of the main push rod meets the first angle, the first side push rod can contact the first side deflector during the rotation of the main push rod until it abuts against the first side deflector, so that the first side deflector is closed. When the angle of the main push rod meets the second angle, the second side push rod can contact the second side deflector during the rotation of the main push rod until it abuts against the second side deflector, so that the second side deflector is closed.

[0049] The push rod unit is in rotatable contact with the first side deflector and the second side deflector, specifically, the control module 1 controls the motor of the push rod unit to drive the main push rod to rotate in the first direction, and the first side push rod can contact the back of the first side deflector during the rotation. If it continues to rotate in the first direction after contact, it will eventually abut against the back of the first side deflector, so that the first side deflector is in a completely closed state. At this time, if it rotates in the second direction, it will gradually come out of contact with the first side deflector. This process makes the first side deflector gradually change from a completely closed state to a completely open state. The first direction and the second direction are opposite directions. The control module 1 controls the motor of the push rod unit to drive the main push rod to rotate, and the second side push rod contacts the back of the second side deflector in a similar manner to the first side push rod and the first side push rod, which is not limited here.

[0050] In some embodiments, the first side temperature monitoring module 2 is used to monitor the temperature of the first side of the range hood, i.e. the first temperature, the second side temperature monitoring module 3 is used to monitor the temperature of the second side of the range hood, i.e. the second temperature, and the control module 1 is used to receive the first temperature sent by the first side temperature monitoring module 2 and the second temperature sent by the second side temperature monitoring module 3, and determine whether the first temperature and the second temperature are greater than or equal to a preset temperature threshold. If the first temperature is greater than or equal to the preset temperature threshold and the second temperature is less than the preset temperature threshold, it is determined that the gas stove below the first side of the range hood is turned on and the gas stove below the second side of the range hood is not turned on, and the push rod motor module 4 is controlled to open the first side deflector and close the second side deflector, so that the smoke and oil fume of the gas stove are guided into the oil fume suction port of the first side of the range hood through the first side deflector. If the second temperature is greater than or equal to the preset temperature threshold and the first temperature is less than the preset temperature threshold, it is determined that the gas stove below the second side of the range hood is turned on and the gas stove below the first side of the range hood is not turned on, and the push rod motor module 4 is controlled to open the second side deflector and close the first side deflector, so that the smoke and oil fume of the gas stove are guided into the oil fume suction port of the second side of the range hood through the second side deflector. If the first temperature and the second temperature are both greater than or equal to the preset temperature threshold, it is determined that the gas stoves below the first side and the second side of the range hood are both turned on, and the push rod motor module 4 is controlled to open the first side deflector and the second side deflector, so that the smoke and oil fume of the gas stove are guided into the oil fume suction port of the second side of the range hood through the first side deflector and the second side deflector. The first side deflector and the second side deflector of the range hood are normally open deflectors.

[0051] In some embodiments, the first side can be the left side of the user when the range hood faces the user after installation in the kitchen, and the right side of the user corresponds to the second side of the range hood. In another embodiment, the left side of the user corresponds to the second side of the range hood, and the right side of the user corresponds to the first side of the range hood, which is not limited herein. The first side temperature monitoring module 2 and the second side temperature monitoring module 3 are respectively arranged at any position on both sides of the air outlet of the range hood, and can correspond to the first side gas stove and the second side gas stove below the range hood respectively. The temperature of the first side of the range hood can be the temperature above the first side gas stove below the range hood, and the temperature of the second side of the range hood can be the temperature above the second side gas stove below the range hood.

[0052] The above technical solution monitors the temperature of both sides of the range hood through the two side temperature monitoring modules connected with the control module 1, so that the control module 1 controls the push rod motor module 4 to open or close the first side deflector and the second side deflector. The opening of the gas stove below the range hood can be determined through the temperature monitoring module, and the first side deflector and the second side deflector are opened or closed in combination with the opening of the oil fume suction port of the range hood, so that the smoke and oil fume are accurately guided into the range hood, avoiding the spread of smoke and oil fume.

[0053] In some embodiments, the device further comprises an oil fume monitoring module 5, which is electrically connected with the control module 1;

[0054] The oil fume monitoring module 5 is used for monitoring the smoke concentration of the oil fume exhauster.

[0055] The control module 1 is further used for controlling the push rod motor module 4 according to the smoke concentration, so as to open or close the first side deflector of the oil fume exhauster or the second side deflector of the oil fume exhauster.

[0056] The oil fume monitoring module 5 comprises an oil fume monitoring circuit and an oil fume monitor, the oil fume monitoring circuit is arranged inside the oil fume exhauster, and the oil fume monitor is arranged at a position between the two side cavities of the oil fume exhauster, and the position of the oil fume monitor can be in contact with air.

[0057] The control module 1 is further used for judging whether the smoke concentration sent by the oil fume monitoring module 5 is greater than or equal to a preset concentration threshold value, and if yes, the control module 1 controls the push rod motor module 4 to open the first side deflector and the second side deflector.

[0058] The oil fume monitoring module 5 is used for monitoring the smoke concentration of the oil fume exhauster; the control module 1 is further used for controlling the push rod motor module 4 to drive the first side deflector to be in one of a closed state and an open state according to the smoke concentration; or, the control module 1 is further used for controlling the push rod motor module 4 to drive the second side deflector to be in one of a closed state and an open state according to the smoke concentration.

[0059] In some embodiments, when one side temperature is higher than a preset temperature threshold value and only one side deflector is opened, if the control module 1 judges that the smoke concentration sent by the oil fume monitoring module 5 is greater than or equal to a preset concentration threshold value, the control module 1 controls the push rod motor module 4 to open the other side deflector, and until the control module 1 judges that the smoke concentration sent by the oil fume monitoring module 5 is less than the preset concentration threshold value, the control module 1 controls the push rod motor module 4 to close the other side deflector which is just opened, and returns to the state that only the side deflector with the temperature higher than the preset temperature threshold value is opened.

[0060] The above technical scheme further strengthens the suction of oil fume and smoke through the oil fume monitoring module 5.

[0061] In some embodiments, the first side temperature monitoring module 2 comprises a first side temperature monitoring circuit and a first side temperature monitor, the first side temperature monitoring circuit comprises a first terminal, a first resistor, a second resistor, a first capacitor and a second capacitor;

[0062] The first side temperature monitoring circuit is connected with the first side temperature monitor through the first terminal.

[0063] The first resistor, the first capacitor and the second capacitor are connected in series, the first resistor and the second resistor are connected in series, and the first capacitor and the second capacitor are connected in parallel with the second resistor.

[0064] The second resistor is used to limit the current in its branch, and the second capacitor is used for filtering.

[0065] In some embodiments, the first-side temperature monitor may be a temperature sensor, i.e., a first-side temperature sensor. For example... Figure 2 As shown in Figure a, the first-side temperature monitoring circuit is powered by a 5V voltage, which can be provided by the switching power supply circuit of the power board. Pin 2 of the first terminal CN1 is connected to the 5V power supply. The first terminal CN1 is connected to the first-side temperature monitor, i.e., the first-side temperature sensor. The labeled network AD_Temperature1 is connected to control module 1. The capacitance of the first capacitor C1 can be 100nF, and the capacitance of the second capacitor C2 can be 104pF. Their main function is filtering to reduce interference. The first resistor R1 is a pull-down resistor with a resistance of 1KΩ to ensure circuit stability; the resistance of the second resistor R2 can also be 1KΩ, and its main function is current limiting.

[0066] The above technical solution uses the first-side temperature monitor of the first-side temperature monitoring module 2 to monitor the temperature of the first side of the range hood. The first-side temperature monitoring circuit provides stable circuit support to ensure the normal monitoring of the first-side temperature monitor.

[0067] In some embodiments, the second-side temperature monitoring module 3 includes a second-side temperature monitoring circuit and a second-side temperature monitor. The second-side temperature monitoring circuit includes a second terminal, a third resistor, a fourth resistor, a third capacitor, and a fourth capacitor.

[0068] The second-side temperature monitoring circuit is connected to the second-side temperature monitor via the second terminal;

[0069] The third resistor, the third capacitor, and the fourth capacitor are connected in series; the third resistor and the fourth resistor are connected in series; and the third capacitor and the fourth capacitor are connected in parallel with the fourth resistor.

[0070] The fourth resistor is used to limit the current in its branch, and the fourth capacitor is used for filtering.

[0071] In some embodiments, the second-side temperature monitor may be a temperature sensor, i.e., a second-side temperature sensor. For example... Figure 2As shown, b is the second side temperature monitoring circuit, the second side temperature monitoring circuit is powered by 5V voltage, and the power supply voltage can be provided by the switching power supply circuit of the power board. The No. 2 pin of the second terminal CN2 is connected to the 5V voltage power supply. The second terminal CN2 is connected with the second side temperature monitor, that is, the second side temperature sensor. The AD_Temperature2 with the marked network is connected with the control module 1. The capacitance value of the third capacitor C3 can be 100nF, and the capacitance value of the fourth capacitor C4 can be 104pF, mainly for filtering and reducing interference. The third resistor R3 is a pull-down resistor, and the resistance value of the third resistor R3 can be 1KΩ, which ensures the stability of the circuit; the resistance value of the fourth resistor R4 can be 1KΩ, and the main function is current limiting.

[0072] The above technical scheme adopts the second side temperature monitor of the second side temperature monitoring module 3 to monitor the temperature of the second side of the range hood, and provides stable circuit support by the second side temperature monitoring circuit to ensure the normal monitoring of the second side temperature monitor.

[0073] In some embodiments, the oil smoke monitoring module 5 includes an oil smoke monitoring circuit and an oil smoke monitor, the oil smoke monitoring circuit includes a third terminal, a monitoring power supply circuit connected with the control module 1 and a communication circuit connected with the control module 1, the oil smoke monitor is connected with the oil smoke monitoring circuit through the third terminal, the monitoring power supply circuit includes a fifth resistor, a fifth capacitor, a sixth capacitor and a triode, the communication circuit includes a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a seventh capacitor and an eighth capacitor.

[0074] The fifth capacitor and the sixth capacitor in the monitoring power supply circuit are connected in parallel, and are connected in series with the fifth resistor and the triode, and are connected with the No. 1 pin of the third terminal, the sixth resistor in the communication circuit is connected in parallel with the seventh resistor, the seventh resistor and the eighth resistor are connected in parallel, the sixth resistor and the ninth resistor are connected in parallel, the eighth resistor and the eighth capacitor are connected in series, and the No. 3 pin of the third terminal is connected with the series circuit, and the ninth resistor and the seventh capacitor are connected in series, and the No. 4 pin of the third terminal is connected with the series circuit.

[0075] In some embodiments, the oil smoke monitor adopts an oil smoke sensor, the oil smoke monitoring circuit is powered by 5V voltage, and the oil smoke monitoring circuit can be provided by the switching power supply circuit of the power board, such as Figure 3As shown, the third terminal TJC3-4A is connected with the oil fume monitor, i.e. the oil fume sensor. The branch SS_Power with network identification is connected with the control module 1, and the 5V voltage power supply is controlled by the on-off control of the transistor Q1 to be powered on or powered off; the branch SS_RXD and the branch SS_TXD with network identification are connected with the control module 1, and are used for serial port communication. Among them, the fifth capacitor C5 is an electrolytic capacitor, the capacitance of the fifth capacitor C5 can be 100uF, the capacitance of the sixth capacitor C6 can be 104pF, and the main function of the sixth capacitor C6 is filtering. The resistance values of the eighth resistor R8 and the ninth resistor R9 can be 100Ω; the capacitances of the seventh capacitor C7 and the eighth capacitor C8 can be 100pF, and the main function is filtering. The sixth resistor R6 and the seventh resistor R7 are pull-up resistors, the resistance values of the sixth resistor R6 and the seventh resistor R7 can be 10KΩ, and the anti-interference ability of the circuit is enhanced.

[0076] The above technical solution adopts the oil fume monitor of the oil fume monitoring module 5 to monitor the smoke concentration of the range hood, and the stable circuit support provided by the oil fume monitoring circuit guarantees the normal monitoring of the oil fume monitor.

[0077] In some embodiments, the push rod motor module 4 further comprises a push rod control circuit;

[0078] The push rod control circuit comprises a motor drive chip, an advancing control circuit connected with the second pin of the motor drive chip, a retreating control circuit connected with the third pin of the motor drive chip, a current output circuit connected with the fourth pin and the seventh pin of the motor drive chip, a push rod power supply circuit connected with the fifth pin of the motor drive chip, a transient suppression circuit connected with the sixth pin and the eighth pin of the motor drive chip, and a fourth terminal connected with the push rod unit.

[0079] The control module 1 drives the push rod unit to rotate through the motor drive chip. The first pin and the third pin of the motor drive chip are input signals, and are respectively connected with the control module 1.

[0080] The above technical solution adopts the push rod unit of the push rod motor module 4 to control the guide plate of the range hood, and the stable circuit support provided by the push rod control circuit guarantees the normal rotation of the push rod unit.

[0081] In some embodiments, the push rod power supply circuit comprises the ninth capacitor, the tenth capacitor and the eleventh capacitor connected with each other in parallel, and the transient suppression circuit comprises the first diode connected with the sixth pin and the second diode connected with the eighth pin.

[0082] In some embodiments, as Figure 4As shown, the push rod power supply circuit is connected with the fifth pin of the motor driving chip, the fifth pin is pin 5, which is the power supply pin of the push rod motor module 4, and supplies power for the push rod motor module 4. The capacitance values of the ninth capacitor C9 and the tenth capacitor C10 can be 100nF, and the capacitance value of the eleventh capacitor C11 can be 22μF, which mainly functions to filter. The sixth pin of the motor driving chip, i.e. pin 6, and the eighth pin, i.e. pin 8, are connected with the motor of the push rod unit through the fourth terminal CN4, and are used to drive the motor to move. The first diode TVS1 and the second diode TVS2 can both be transient suppression diodes, and the specifications of the first diode TVS1 and the second diode TVS2 can both be 20V, which are used to protect the circuit from voltage interference.

[0083] In some embodiments, the current output circuit includes a first circuit formed by the eleventh resistor connected with the fourth pin in series with the twelfth capacitor in parallel, and a second circuit formed by the tenth resistor connected with the seventh pin.

[0084] In some embodiments, the fourth pin of the motor driving chip, i.e. pin 4, is the output current setting pin of the push rod control circuit, which is used for power supply. The resistance value of the eleventh resistor R11 can be 5KΩ, and the resistance value of the twelfth resistor R12 can be 20KΩ, which functions to limit current. The capacitance value of the twelfth capacitor C12 can be 100nF, which mainly functions to filter. The seventh pin of the motor driving chip, i.e. pin 7, is the output current sensing pin of the push rod control circuit, which is connected with the tenth resistor R10 to control the output current in cooperation with the components connected with the fourth pin. The resistance value of the tenth resistor R10 can be 100mΩ, which mainly functions to limit current.

[0085] In some embodiments, the control module 1 is electrically connected with the forward control circuit and the backward control circuit, respectively.

[0086] The forward control circuit includes the thirteenth resistor and the thirteenth capacitor in parallel.

[0087] The backward control circuit includes the fourteenth resistor and the fourteenth capacitor in parallel.

[0088] The control module 1 inputs the forward control signal for the motor driving chip through the forward control circuit, and inputs the backward control signal for the motor driving chip through the backward control circuit.

[0089] In some embodiments, the second pin, pin 2, of the motor drive chip and the third pin, pin 3, of the motor drive chip are input signals, the thirteenth resistor and the thirteenth capacitor are connected to the motor drive chip through the second pin, the forward control circuit is connected to the control module 1 through the network identification B-F branch, the fourteenth resistor and the fourteenth capacitor are connected to the motor drive chip through the third pin, and the backward control circuit is connected to the control module 1 through the network identification B-R branch. The resistance values of the thirteenth resistor R13 and the fourteenth resistor R14 can be 220Ω, which functions as current limiting, and the capacitance values of the thirteenth capacitor C13 and the fourteenth capacitor C14 can be 100pF, which mainly functions as filtering.

[0090] The above technical solution controls the operation of the push rod unit through the functions of each circuit in the push rod control circuit of the push rod motor module 4, so as to control the opening or closing of the guide plate of the range hood, thereby realizing precise absorption of oil fume by the range hood and avoiding the diffusion of smoke and oil fume.

[0091] In addition, the present application also provides a range hood, which comprises the range hood guide plate control device 100 as above.

[0092] The range hood guide plate control device in the present application comprises the range hood guide plate control device as above. The present application monitors the temperatures on both sides of the range hood through the first side temperature monitoring module and the second side temperature monitoring module, and the control module connected to the first side temperature monitoring module and the second side temperature monitoring module controls the opening or closing of the first side guide plate and the second side guide plate driven by the push rod motor module according to the temperatures on both sides of the range hood, thereby automatically controlling the opening of the corresponding guide plate according to the temperatures on both sides of the range hood, accurately guiding the smoke and oil fume into the oil fume suction port, and avoiding the diffusion of smoke and oil fume.

[0093] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A range hood baffle control device, characterized by, The device comprises a first side deflector, a second side deflector, a control module, a first side temperature monitoring module, a second side temperature monitoring module and a push rod motor module. The first side deflector and the second side deflector are respectively arranged at a first side oil fume suction port of the range hood and a first side oil fume suction port of the range hood. The first side temperature monitoring module and the second side temperature monitoring module are respectively arranged at a first side position of the range hood and a second side position of the range hood. The output end of the first side temperature monitoring module and the output end of the second side temperature monitoring module are respectively electrically connected with the input end of the control module. The output end of the control module is electrically connected with the input end of the push rod motor module. The push rod motor module comprises a push rod unit, which is arranged inside the range hood and rotatably contacts with the first side deflector and the second side deflector.

2. The range hood deflector control device of claim 1, wherein, The device further comprises an oil fume monitoring module. The oil fume monitoring module is arranged at a middle position of a lower cavity of the range hood. The output end of the oil fume monitoring module is connected with the input end of the control module.

3. The range hood deflector control device of claim 1, wherein, The first side temperature monitoring module comprises a first side temperature monitoring circuit and a first side temperature monitor, and the first side temperature monitoring circuit comprises a first terminal, a first resistor, a second resistor, a first capacitor and a second capacitor. The first side temperature monitoring circuit is connected with the first side temperature monitor through the first terminal. The first resistor, the first capacitor and the second capacitor are connected in series, the first resistor and the second resistor are connected in series, and the first capacitor and the second capacitor are connected in parallel with the second resistor.

4. The range hood deflector control device of claim 1, wherein, The second side temperature monitoring module comprises a second side temperature monitoring circuit and a second side temperature monitor, and the second side temperature monitoring circuit comprises a second terminal, a third resistor, a fourth resistor, a third capacitor and a fourth capacitor. The second side temperature monitoring circuit is connected with the second side temperature monitor through the second terminal. The third resistor, the third capacitor and the fourth capacitor are connected in series, the third resistor and the fourth resistor are connected in series, and the third capacitor and the fourth capacitor are connected in parallel with the fourth resistor.

5. The range hood deflector control device of claim 2, wherein, The oil fume monitoring module comprises an oil fume monitoring circuit and an oil fume monitor, the oil fume monitoring circuit comprises a third terminal, a monitoring power supply circuit connected with the control module and a communication circuit connected with the control module, the oil fume monitor is connected with the oil fume monitoring circuit through the third terminal, the monitoring power supply circuit comprises a fifth resistor, a fifth capacitor, a sixth capacitor and a triode, and the communication circuit comprises a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a seventh capacitor and an eighth capacitor.

6. The range hood deflector control device of claim 1, wherein, The push rod motor module further comprises a push rod control circuit. The push rod control circuit comprises a motor driving chip, an advancing control circuit connected with a second pin of the motor driving chip, a retreating control circuit connected with a third pin of the motor driving chip, a current output circuit connected with a fourth pin and a seventh pin of the motor driving chip, a push rod power supply circuit connected with a fifth pin of the motor driving chip, a transient suppression circuit connected with a sixth pin and an eighth pin of the motor driving chip, and a fourth terminal connected with the push rod unit.

7. The range hood deflector control device of claim 6, wherein, The push rod power supply circuit comprises a ninth capacitor, a tenth capacitor and an eleventh capacitor connected in parallel with each other, and the transient suppression circuit comprises a first diode connected with the sixth pin and a second diode connected with the eighth pin.

8. The range hood deflector control device of claim 6, wherein, The current output circuit comprises a first circuit formed by connecting a eleventh resistor and a twelfth capacitor in parallel and then connecting the twelfth resistor in series, and the current output circuit further comprises a second circuit formed by a tenth resistor connected with the seventh pin.

9. The range hood deflector control device of claim 6, wherein, The control module is electrically connected with the advancing control circuit and the retreating control circuit respectively. The advancing control circuit comprises a thirteenth resistor and a thirteenth capacitor connected in parallel. The retreating control circuit comprises a fourteenth resistor and a fourteenth capacitor connected in parallel.

10. A range hood characterized by The range hood guide vane control device comprises the push rod unit and the push rod control circuit. The push rod control circuit comprises a motor driving chip, an advancing control circuit connected with a second pin of the motor driving chip, a retreating control circuit connected with a third pin of the motor driving chip, a current output circuit connected with a fourth pin and a seventh pin of the motor driving chip, a push rod power supply circuit connected with a fifth pin of the motor driving chip, a transient suppression circuit connected with a sixth pin and an eighth pin of the motor driving chip, and a fourth terminal connected with the push rod unit. The push rod power supply circuit comprises a ninth capacitor, a tenth capacitor and an eleventh capacitor connected in parallel with each other, and the transient suppression circuit comprises a first diode connected with the sixth pin and a second diode connected with the eighth pin. The current output circuit comprises a first circuit formed by connecting a eleventh resistor and a twelfth capacitor in parallel and then connecting the twelfth resistor in series, and the current output circuit further comprises a second circuit formed by a tenth resistor connected with the seventh pin. The control module is electrically connected with the advancing control circuit and the retreating control circuit respectively. The advancing control circuit comprises a thirteenth resistor and a thirteenth capacitor connected in parallel. The retreating control circuit comprises a fourteenth resistor and a fourteenth capacitor connected in parallel. The range hood guide vane control device comprises the push rod unit and the push rod control circuit. The push rod control circuit comprises a motor driving chip, an advancing control circuit connected with a second pin of the motor driving chip, a retreating control circuit connected with a third pin of the motor driving chip, a current output circuit connected with a fourth pin and a seventh pin of the motor driving chip, a push rod power supply circuit connected with a fifth pin of the motor driving chip, a transient suppression circuit connected with a sixth pin and an eighth pin of the motor driving chip, and a fourth terminal connected with the push rod unit. The push rod power supply circuit comprises a ninth capacitor, a tenth capacitor and an eleventh capacitor connected in parallel with each other, and the transient suppression circuit comprises a first diode connected with the sixth pin and a second diode connected with the eighth pin. The current output circuit comprises a first circuit formed by

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