Linkage control equipment for range hood and relay range hood and relay range hood

Abstract

The invention discloses linkage control equipment for a range hood and a relay range hood and the relay range hood, and belongs to the technical field of kitchen appliances. The linkage control equipment is electrically connected with the range hood and the relay range hood respectively; the equipment comprises a main control module; the main control module is used for acquiring a linkage gear set by a user under the condition that the user selects the first linkage control mode; and controlling the relay range hood to start in response to the fact that the working gear of the range hood is higher than the linkage gear. According to the embodiment of the invention, the linkage gear is compared with the working gear of the range hood based on the linkage control mode selected by the user and the set linkage gear, and when the working gear of the range hood is higher than the linkage gear, the relay range hood is controlled to be started, so that ordered matching of the range hood and the relay range hood during operation is realized; the phenomenon of starting failure or other faults of the range hood caused by airflow interference due to premature starting of the relay range hood is reduced, so that the range hood and the relay range hood can form an orderly and stable airflow organization during cooperative work, and the oil smoke suction effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and in particular relates to a linkage control device for a range hood and a relay range hood, and the relay range hood. Background Art

[0002] To accommodate larger kitchens or complex exhaust requirements, a relay range hood is often used. A relay range hood is a supplementary airflow device designed to enhance overall exhaust efficiency. When the range hood's suction power is insufficient, the relay range hood can be activated to supplement exhaust capacity, ensuring optimal air circulation in the kitchen.

[0003] Because the relay range hood and main range hood operate in separate control modes, incompatibilities may occur when they operate in conjunction. This is especially true when the relay range hood is activated and the main range hood is operating downwind. The main range hood's airflow is affected by the relay range hood's airflow, disrupting its internal airflow. This can easily lead to startup failures, startup failures, or other malfunctions, significantly impacting the extraction of cooking fumes. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a linkage control device for a range hood and a relay range hood, and a relay range hood, to improve the effect of extracting oil smoke.

[0005] In a first aspect, the present application provides a linkage control device for a range hood and a relay range hood, wherein the linkage control device is electrically connected to the range hood and the relay range hood respectively; the linkage control device includes a main control module;

[0006] The main control module is used to obtain the linkage gear set by the user when the user selects the first linkage control mode; in response to the range hood's working gear being higher than the linkage gear, control the relay range hood to start.

[0007] According to the linkage control device for the range hood and relay range hood of the present application, when the user selects the first linkage control mode, the linkage gear set by the user is obtained; in response to the range hood operating gear being higher than the linkage gear, the relay range hood is controlled to start. This embodiment of the present application compares the linkage gear with the range hood operating gear based on the linkage control mode selected by the user and the linkage gear set. When the range hood operating gear is higher than the linkage gear, the relay range hood is controlled to start. This achieves orderly coordination between the range hood and the relay range hood during operation, reduces the possibility of premature startup of the relay range hood, resulting in startup failure or other malfunctions due to airflow interference, and enables the range hood and relay range hood to form an orderly and stable airflow organization when working together, thereby improving the efficiency of extracting oil fumes.

[0008] According to one embodiment of the present application, the linkage control device further includes a mutual inductor;

[0009] The transformer is used to sample the working current of the range hood, obtain the sampled current, and output the sampled current to the main control module;

[0010] The main control module is used to determine whether the working gear of the range hood is higher than the linkage gear based on the sampled current.

[0011] In this embodiment, the operating current of the range hood is sampled in real time through a mutual inductor and the sampled current is output, providing the main control module with data support for the operating status of the range hood, so that the main control module can sample the current and accurately determine whether the operating gear of the range hood is higher than the linkage gear, thereby improving the reliability of the coordinated operation of the range hood and the relay range hood.

[0012] According to one embodiment of the present application, controlling the relay range hood to start includes:

[0013] generating a first target electrical signal according to a sampled current obtained by sampling the mutual inductor;

[0014] The first target electrical signal is sent to the relay range hood, so that the relay range hood is started according to a preset gear position based on the first target electrical signal.

[0015] In this embodiment, the sampling current collected by the mutual inductor truly reflects the real-time working status of the range hood. The first target electrical signal generated based on the sampling current can enable the main control module to provide accurate start-up instructions to the relay range hood according to the actual operation of the range hood. After receiving the first target electrical signal, the relay range hood starts according to the preset gear, which not only reduces the problems of conflict with the airflow of the range hood and operation disorder that may be caused by blind startup, but also can further intervene to assist in the exhaust of oil smoke, further improving the effect of extracting oil smoke.

[0016] According to one embodiment of the present application, the main control module is further configured to:

[0017] When the user selects the second linkage control mode, the operating current of the range hood is monitored;

[0018] The operating power of the relay range hood is controlled according to the operating current; different operating current ranges correspond to different operating powers.

[0019] In this embodiment, by monitoring the working current of the range hood in the second linkage control mode, the actual workload and smoke exhaust requirements of the range hood can be accurately grasped, and the power of the relay range hood can be dynamically adjusted according to the correspondence between different working current ranges and operating powers, thereby realizing dynamic coordinated operation of the range hood and the relay range hood under different working conditions, so that the relay range hood will neither waste energy or generate unnecessary noise due to excessive power, nor be unable to effectively assist in smoke exhaust due to insufficient power.

[0020] According to one embodiment of the present application, controlling the operating power of the relay range hood according to the operating current includes:

[0021] generating a second target electrical signal according to a sampled current obtained by sampling the mutual inductor;

[0022] The second target electrical signal is sent to the relay range hood, so that the relay range hood determines the range of the sampling current based on the second target electrical signal and operates according to the operating power corresponding to the range of the sampling current; wherein different sampling current ranges correspond to different operating powers.

[0023] In this embodiment, a second target electrical signal is generated by utilizing the sampling current obtained by sampling the mutual inductor, and the signal is sent to the relay range hood. After receiving the signal, the relay range hood can determine its corresponding operating power according to the range of the sampling current, thereby realizing dynamic adjustment of the working state of the relay range hood, making the operation of the relay range hood more in line with the actual kitchen smoke exhaust needs. When the working current of the range hood changes, the relay range hood can respond quickly and adjust its own operating power, thereby improving the effect of extracting oil fumes under different working conditions.

[0024] According to one embodiment of the present application, the main control module includes a control circuit; the control circuit includes a plurality of first resistors connected in parallel and having different resistance values, and a transistor; the transistor is connected in series with the parallel circuit of the plurality of first resistors;

[0025] The plurality of first resistors are respectively corresponding to a dip switch;

[0026] The main control module is also used to: based on the linkage gear, select the target first resistor to be turned on through the dip switch to change the conduction current of the transistor; when the sampling current of the transformer is greater than the conduction current, it is determined that the working gear of the range hood is higher than the linkage gear, the transistor is turned on, and the first target electrical signal is generated and sent to the relay range hood.

[0027] In this embodiment, by setting multiple first resistors with different resistance values and connected in parallel in the control circuit and matching corresponding dip switches, the resistor to be turned on can be selected through the dip switch according to the linkage gear set by the user. The characteristics of the resistor and the transistor are utilized, and the conduction current threshold of the transistor is controlled by adjusting the resistance value. When the sampling current of the mutual inductor is greater than the conduction current, it can be determined that the working gear of the range hood meets the conditions, triggering the transistor to turn on to generate the first target electrical signal, and controlling the relay range hood to start. Through this combination of hardware circuit and logical judgment, the user can flexibly adjust the linkage gear according to different usage scenarios, further improving the effect of extracting oil smoke and user experience.

[0028] According to one embodiment of the present application, a transistor of the control circuit is connected in series with a first circuit and a second circuit arranged in parallel; the first circuit and the second circuit respectively correspond to a control switch; wherein the resistance value of the first circuit is smaller than the resistance value of the second circuit;

[0029] The main control module is further configured to: when the user selects the first linkage control mode, control the first circuit to be turned on by controlling the switch.

[0030] In this embodiment, through the parallel design of the first circuit and the second circuit, combined with the control of the control switch, when the user selects the first linkage control mode, the main control module turns on the first circuit through the control switch. Since the resistance value of the first circuit is smaller than that of the second circuit, turning on the first circuit can provide a low-resistance path for the transistor, thereby generating a first target electrical signal and a second target electrical signal with differences, so that the relay range hood can adjust the working state accordingly according to the received signal, meeting the user's needs to adjust the linkage control mode, and further improving the effect of extracting oil smoke and user experience.

[0031] According to one embodiment of the present application, the main control module is further configured to:

[0032] When the user selects the second linkage control mode, the second circuit is controlled to be turned on by the control switch, and the multiple first resistors are controlled to be turned on by the dip switch to reduce the conduction current of the transistor, and the second target electrical signal is generated according to the sampled current obtained by the mutual inductor sampling.

[0033] In this embodiment, when the user selects the second linkage control mode, the main control module controls the conduction of the second circuit with a larger resistance value, and cooperates with the dip switch to control the conduction of multiple first resistors, thereby reducing the conduction current of the transistor. Therefore, even when the working current of the range hood is low, the second target electrical signal can be generated based on the conduction of the transistor and the conduction of the second circuit with a larger resistance value. This allows the relay range hood to dynamically adjust the operating power according to the second target electrical signal, thereby improving the effect of extracting oil fumes under different working conditions.

[0034] In a second aspect, the present application provides a relay range hood, which is electrically connected to the range hood and the linkage control device of the relay range hood;

[0035] The relay range hood is used to receive the target electrical signal sent by the main control module; when the target electrical signal includes the first target electrical signal, it is started according to the preset gear.

[0036] According to the relay range hood of the present application, the linkage gear is compared with the range hood working gear based on the linkage control mode selected by the user and the linkage gear set. When the range hood working gear is higher than the linkage gear, the relay range hood is controlled to start, thereby achieving orderly coordination between the range hood and the relay range hood during operation, reducing the possibility of premature startup of the relay range hood, resulting in startup failure or other malfunctions of the range hood due to airflow interference, and enabling the range hood and the relay range hood to form an orderly and stable airflow organization when working together, thereby improving the effect of extracting oil fumes.

[0037] According to one embodiment of the present application, the relay range hood is further used to:

[0038] Receive a target electrical signal sent by the main control module; when the target electrical signal includes a second target electrical signal, determine a range of a sampling current based on the second target electrical signal, and operate according to an operating power corresponding to the range of the sampling current; wherein different sampling current ranges correspond to different operating powers.

[0039] The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

[0040] According to the linkage control device for the range hood and relay range hood of the present application, when the user selects the first linkage control mode, the linkage gear set by the user is obtained; in response to the range hood operating gear being higher than the linkage gear, the relay range hood is controlled to start. This embodiment of the present application compares the linkage gear with the range hood operating gear based on the linkage control mode selected by the user and the linkage gear set. When the range hood operating gear is higher than the linkage gear, the relay range hood is controlled to start. This achieves orderly coordination between the range hood and the relay range hood during operation, reduces the possibility of premature startup of the relay range hood, resulting in startup failure or other malfunctions due to airflow interference, and enables the range hood and relay range hood to form an orderly and stable airflow organization when working together, thereby improving the efficiency of extracting oil fumes.

[0041] Furthermore, in some embodiments, the operating current of the range hood is sampled in real time through a mutual inductor and the sampled current is output, providing the main control module with data support for the operating status of the range hood, so that the main control module can sample the current and accurately determine whether the operating gear of the range hood is higher than the linkage gear, thereby improving the reliability of the coordinated operation of the range hood and the relay range hood.

[0042] Furthermore, in some embodiments, the sampling current collected by the mutual inductor truly reflects the real-time working status of the range hood. The first target electrical signal generated based on the sampling current can enable the main control module to provide accurate startup instructions for the relay range hood according to the actual operation of the range hood. After the relay range hood receives the first target electrical signal, it starts according to the preset gear position, which not only reduces the problems of conflict with the range hood airflow and operation disorder that may be caused by blind startup, but also can further intervene to assist in exhausting oil fumes, further improving the effect of extracting oil fumes.

[0043] Furthermore, in some embodiments, by monitoring the working current of the range hood in the second linkage control mode, the actual workload and smoke exhaust requirements of the range hood can be accurately grasped, and the power of the relay range hood can be dynamically adjusted according to the correspondence between different working current ranges and operating powers, thereby realizing dynamic coordinated operation of the range hood and the relay range hood under different working conditions, so that the relay range hood will neither waste energy or generate unnecessary noise due to excessive power, nor be unable to effectively assist in smoke exhaust due to insufficient power.

[0044] Furthermore, in some embodiments, a second target electrical signal is generated by utilizing the sampling current obtained by sampling the mutual inductor, and the signal is sent to the relay range hood. After receiving the signal, the relay range hood can determine its corresponding operating power according to the range of the sampling current, thereby realizing dynamic adjustment of the working state of the relay range hood, making the operation of the relay range hood more in line with the actual kitchen smoke exhaust needs. When the working current of the range hood changes, the relay range hood can respond quickly and adjust its own operating power, thereby improving the effect of extracting oil fumes under different working conditions.

[0045] Furthermore, in some embodiments, by setting multiple first resistors with different resistance values and connected in parallel in the control circuit and matching corresponding dip switches, the resistor to be turned on can be selected through the dip switch according to the linkage gear set by the user, utilizing the characteristics of the resistor and the transistor, and controlling the on-current threshold of the transistor by adjusting the resistance value. When the sampling current of the mutual inductor is greater than the on-current, it can be determined that the working gear of the range hood meets the conditions, triggering the transistor to turn on to generate the first target electrical signal, and controlling the relay range hood to start. By combining this hardware circuit with logical judgment, the user can flexibly adjust the linkage gear according to different usage scenarios, further improving the effect of extracting oil smoke and the user experience.

[0046] Furthermore, in some embodiments, through the parallel design of the first circuit and the second circuit, and combined with the control of the control switch, when the user selects the first linkage control mode, the main control module turns on the first circuit through the control switch. Since the resistance value of the first circuit is smaller than that of the second circuit, turning on the first circuit can provide a low-resistance path for the transistor, thereby generating a first target electrical signal and a second target electrical signal with differences, so that the relay range hood can adjust the working state accordingly according to the received signal, meeting the user's needs to adjust the linkage control mode, and further improving the effect of extracting oil smoke and user experience.

[0047] Furthermore, in some embodiments, when the user selects the second linkage control mode, the main control module controls the conduction of the second circuit with a larger resistance value, and cooperates with the dip switch to control the conduction of multiple first resistors, thereby reducing the conduction current of the transistor, so that even when the working current of the range hood is low, the second target electrical signal can be generated based on the conduction of the transistor and the conduction of the second circuit with a larger resistance value, so that the relay range hood can dynamically adjust the operating power according to the second target electrical signal, thereby improving the effect of extracting oil fumes under different working conditions.

[0048] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and / or additional aspects and advantages of the present application will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0050] Figure 1 This is a schematic structural diagram of a linkage control device for a range hood and a relay range hood provided in an embodiment of the present application;

[0051] Figure 2 It is a structural diagram of the control circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0053] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0054] The linkage control device of the range hood and the relay range hood provided in the embodiment of the present application and the relay range hood are described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0055] A range hood, also known as a range hood, is an important appliance in the kitchen used to remove fumes and exhaust gases generated during cooking and to keep the air fresh. A range hood can include components such as a fan system, exhaust ducts, and a control panel. The fan system, as the core power component of the range hood, consists of a motor and an impeller. When the motor drives the impeller to rotate at high speed, a negative pressure area is formed inside the fan, and the fumes are sucked into the machine body through the air pressure difference and then discharged to the outside through the exhaust duct. The control panel of the range hood is used to enable user interaction with the range hood. Users can control the range hood's power, wind speed adjustment, lighting, and other functions through the physical buttons or touch interface on the control panel.

[0056] When the kitchen space is large or the distance between the stove and the range hood is long, the oil smoke may diffuse during transmission, resulting in some oil smoke not being effectively absorbed, which in turn affects the kitchen air quality and the exhaust efficiency of the range hood. To solve this problem, you can install a relay range hood to assist in the exhaust of oil smoke.

[0057] A relay hood can be installed between the range hood's exhaust fan and the public flue. It reduces back pressure and enhances the range hood's exhaust capacity. When activated, it helps the main range hood overcome flue resistance, allowing fumes to be discharged more smoothly into the public flue.

[0058] like Figure 1 As shown, the linkage control device 100 of the range hood and the relay range hood in the embodiment of the present application is electrically connected to the range hood 200 and the relay range hood 300 respectively.

[0059] The linkage control device 100 includes a main control module 101;

[0060] The main control module 101 is used to obtain the linkage gear set by the user when the user selects the first linkage control mode; in response to the working gear of the range hood 200 being higher than the linkage gear, control the relay range hood 300 to start.

[0061] In the embodiment of the present application, a linkage control device 100 is introduced to control the coordinated operation of the range hood 200 and the relay range hood 300.

[0062] The linkage control device 100 can be electrically connected to the range hood 200 and relay range hood 300 via either a wired or wireless connection. In the case of a wired connection, the linkage control device 100 can be connected to the control circuits of the range hood 200 and relay range hood 300 via a dedicated data cable. In the case of a wireless connection, data exchange with the range hood 200 and relay range hood 300 can be performed using Wi-Fi, Bluetooth, or other wireless communication protocols.

[0063] The first linkage control mode is a control strategy designed to optimize the coordinated operation of the range hood 200 and the relay range hood 300. In this mode, the main control module 101 obtains the linkage gear set by the user and, in response to the operating gear of the range hood 200 being higher than the linkage gear, activates the relay range hood 300.

[0064] To facilitate user selection of the first linkage control mode, the linkage control device 100, range hood 200, or relay range hood 300 may provide a display screen displaying a graphical user interface (GUI) with a dedicated mode selection button or option menu. When the user presses the corresponding mode selection button, or selects the first linkage control mode in the menu by touching or pressing a button, the display screen converts the user's operation signal into an electrical signal and transmits it to the main control module 101. Of course, the main control module 101 may also receive the user's instruction to select the first linkage control mode through physical buttons, voice recognition, or remote control via a mobile phone application.

[0065] The linkage gear is a parameter set by the user in the first linkage control mode according to the actual usage scenario and needs. The linkage gear represents the threshold of the working gear of the range hood 200 and is used to determine whether the relay range hood 300 is started. The linkage gear can include multiple levels, such as low, medium, high, or specific digital gears, such as 1-10. The user can flexibly set the linkage gear according to factors such as the amount of kitchen fume generated and the installation environment of the range hood. For example, in daily cooking scenarios where the amount of fume generated is small, the user can set the linkage gear to a higher level so that when the range hood 200 is working at a lower gear, the relay range hood 300 does not need to be started; in scenarios with a large amount of fume, such as stir-frying, the user can set the linkage gear to a lower level so that the relay range hood 300 is started when the range hood 200 is working at a low gear.

[0066] In some embodiments, the user can select the appropriate linkage position on the display screen or physical buttons of the linkage control device 100, range hood 200, or relay range hood 300. Alternatively, the user can select the appropriate linkage position through voice recognition, remote control via a mobile phone application, or other methods. For example, after the user selects a linkage position on the display screen, the display screen transmits the user's operation information to the main control module 101. Upon receiving the signal, the main control module 101 analyzes and stores it for subsequent comparison with the operating position of the range hood 200.

[0067] The operating position of the range hood 200 is the air volume level it operates at during operation. Multiple air volume levels are available to suit varying fume levels and user needs. For example, a low setting is suitable for light cooking, while a high setting is ideal for heavier cooking. The operating position of the range hood 200 can be adjusted via the range hood's control panel or remotely controlled via a connected smart device.

[0068] The range hood 200 may include a gear detection sensor that can monitor the speed, operating current and other parameters of the range hood motor 200 in real time, and convert them into corresponding operating gear signals to be transmitted to the main control module 101 of the linkage control device 100.

[0069] The main control module 101 compares the operating gear of the range hood 200 with the linkage gear set by the user. If the operating gear of the range hood is higher than the linkage gear, the main control module will determine that the current amount of oil smoke is large and it is necessary to activate the relay range hood to provide additional suction capacity. For example, if the linkage gear is set to medium, when the main control module 101 detects that the operating gear of the range hood 200 is medium or higher, it will determine that the operating gear of the range hood 200 is higher than the linkage gear and control the activation of the relay range hood. If the main control module 101 detects that the operating gear of the range hood 200 is low or lower, it will determine that the operating gear of the range hood 200 is lower than the linkage gear.

[0070] In some embodiments, when it is determined that the working gear of the range hood 200 is higher than the linkage gear, the main control module 101 can send a control signal to the relay range hood 300 to start the relay range hood to achieve coordinated operation of the range hood and the relay range hood, thereby optimizing the effect of extracting oil fumes.

[0071] In some embodiments, as Figure 1 As shown, the main control module 101 can control the relay range hood 300 to start up through the relay 103 and the AC contactor 104 .

[0072] Specifically, the main control module 101, relay 103, and AC contactor 104 are powered by the power module 105. The relay 103 is primarily composed of an electromagnetic coil, an armature, and contacts. When a control signal from the main control module 101 is transmitted to the electromagnetic coil of the relay 103, the coil is energized, generating a magnetic field. This magnetic field attracts the armature, overcoming the resistance of the spring and causing it to move. This movement of the armature drives the contacts, closing the normally open contacts and completing the circuit.

[0073] After the normally open contact of the relay 103 is closed, the AC contactor 104 will be connected to provide working power to the electromagnetic mechanism of the AC contactor 104, so that the AC contactor 104 enters the standby state and is ready to execute power supply control for the relay range hood 300.

[0074] According to the linkage control device for the range hood and relay range hood of the present application, when the user selects the first linkage control mode, the linkage gear set by the user is obtained; in response to the range hood operating gear being higher than the linkage gear, the relay range hood is controlled to start. This embodiment of the present application compares the linkage gear with the range hood operating gear based on the linkage control mode selected by the user and the linkage gear set. When the range hood operating gear is higher than the linkage gear, the relay range hood is controlled to start. This achieves orderly coordination between the range hood and the relay range hood during operation, reduces the possibility of premature startup of the relay range hood, resulting in startup failure or other malfunctions due to airflow interference, and enables the range hood and relay range hood to form an orderly and stable airflow organization when working together, thereby improving the efficiency of extracting oil fumes.

[0075] In some embodiments, the linkage control device 100 further includes a mutual inductor 102;

[0076] The transformer 102 is used to sample the operating current of the range hood 200 to obtain a sampled current and output the sampled current to the main control module 101;

[0077] The main control module 101 is used to determine whether the working gear of the range hood 200 is higher than the linkage gear according to the sampled current.

[0078] In this embodiment, the transformer 102 samples the operating current of the range hood 200, providing data support for subsequent control logic. During the operation of a kitchen appliance, current changes often directly reflect the device's operating status. Therefore, sampling the operating current of the range hood 200 by the transformer 102 provides data support for determining whether the range hood 200's operating position meets the requirements of the linkage control.

[0079] The mutual inductor 102 is designed based on the principle of electromagnetic induction and may include a primary coil, a secondary coil, and an iron core. The function of the mutual inductor 102 is to convert the large current when the range hood 200 is working into a small current signal that is easy to measure and process. When the range hood 200 is working, the current flowing through the primary coil will generate an alternating magnetic field in the iron core, and the secondary coil will induce current under the action of this magnetic field. Since the turns ratio of the primary coil and the secondary coil is fixed, the current in the secondary coil is proportional to the current in the primary coil (i.e., the working current of the range hood 200). Through the mutual inductor 102, the working current information of the range hood can be accurately obtained without affecting the normal operation of the range hood 200.

[0080] Specifically, when the range hood 200 is running, the operating current of the range hood 200 will pass through the primary coil and the secondary coil of the transformer 102 to generate a sampling current proportional to the original current.

[0081] The main control module 101 may include a signal processing circuit capable of reading and analyzing the sampled current output by the transformer 102. For example, the main control module 101 may compare the sampled current with a preset current reference range. This current reference range is pre-set based on the current characteristics of the different operating gears of the range hood 200. Different operating gears correspond to different current reference ranges. Based on the current reference range within which the sampled current falls, the operating gear of the range hood 200 can be accurately determined, and the operating gear of the range hood 200 can then be compared with the linkage gear.

[0082] In this embodiment, the operating current of the range hood is sampled in real time through a mutual inductor and the sampled current is output, providing the main control module with data support for the operating status of the range hood, so that the main control module can sample the current and accurately determine whether the operating gear of the range hood is higher than the linkage gear, thereby improving the reliability of the coordinated operation of the range hood and the relay range hood.

[0083] In some embodiments, controlling the relay range hood to start includes:

[0084] Generate a first target electrical signal according to the sampled current sampled by the mutual inductor 102;

[0085] The first target electrical signal is sent to the relay range hood 300 , so that the relay range hood 300 is started according to a preset gear position based on the first target electrical signal.

[0086] In this embodiment, the main control module 101 can convert the sampled current into a first target electrical signal through built-in algorithms and logic. The first target electrical signal can instruct the relay range hood to operate at a preset gear, thereby achieving coordinated operation with the range hood.

[0087] After receiving the first target electrical signal, the relay range hood 200 will parse the first target electrical signal to determine the instruction carried by the first target electrical signal, and then start according to the preset gear position according to the instruction in the first target electrical signal.

[0088] The preset gear is predefined by the user or is a default setting of the program. For example, in addition to setting the linkage gear, the user can also set the preset gear, for example, the preset gear can be set to the low gear, the medium gear or the high gear of the relay range hood 300 according to actual needs.

[0089] In this embodiment, the sampling current collected by the mutual inductor truly reflects the real-time working status of the range hood. The first target electrical signal generated based on the sampling current can enable the main control module to provide accurate start-up instructions to the relay range hood according to the actual operation of the range hood. After receiving the first target electrical signal, the relay range hood starts according to the preset gear, which not only reduces the problems of conflict with the airflow of the range hood and operation disorder that may be caused by blind startup, but also can further intervene to assist in the exhaust of oil smoke, further improving the effect of extracting oil smoke.

[0090] In some embodiments, the main control module 101 is further configured to:

[0091] When the user selects the second linkage control mode, the operating current of the range hood 200 is monitored;

[0092] The operating power of the relay range hood is controlled according to the operating current; different operating current ranges correspond to different operating powers.

[0093] Among the various functions of the linkage control device 100, the user can select different linkage control modes to adapt to different cooking scenarios. When the user selects the second linkage control mode, the operating power of the relay range hood 300 can be dynamically adjusted by real-time monitoring of the operating current of the range hood 200.

[0094] In some embodiments, the user can select the second linkage control mode through the operation interface of the linkage control device 100, range hood 200 or relay range hood 300, or through a smart terminal connected to the linkage control device 100, range hood 200 or relay range hood 300, such as a mobile phone application.

[0095] In the second linkage control mode, the main control module 101 monitors the operating current of the range hood 200 in real time. For example, the transformer 102 can continuously sample the operating current of the range hood 200 and transmit the sampled current data to the main control module 101. By sampling the current, the main control module 101 can understand the operating status of the range hood in real time.

[0096] The operating current of the range hood 200 changes as the amount of cooking fumes changes during cooking. For example, in the early stages of cooking, when the amount of cooking fumes is low, the operating current of the range hood 200 may be low. However, as the amount of cooking fumes increases, the range hood 200 automatically adjusts to a higher setting, causing the operating current to increase. By continuously monitoring the operating current, the main control module 101 can detect changes in the operating status of the range hood 200 and adjust the power of the relay range hood accordingly.

[0097] Specifically, a correspondence between the operating current and the operating power of the relay range hood 300 can be pre-established, with different operating current ranges corresponding to different operating powers. For example, a low operating current indicates that the range hood 200 is operating at a low load, and the operating power of the relay range hood 300 can be lowered to save energy. A high operating current indicates a high volume of oil smoke, and the operating power of the relay range hood 300 can be higher to provide a stronger suction capacity.

[0098] In this embodiment, by monitoring the working current of the range hood in the second linkage control mode, the actual working load and exhaust demand of the range hood can be accurately grasped. According to the corresponding relationship between different working current ranges and operating powers, the power of the relay range hood is dynamically adjusted, realizing the dynamic collaborative work of the range hood and the relay range hood under different working conditions, so that the relay range hood will neither cause energy waste and unnecessary noise due to excessive power nor be unable to effectively assist in exhaust due to insufficient power.

[0099] In some embodiments, controlling the operating power of the relay range hood 300 according to the working current includes:

[0100] Generating a second target electrical signal based on the sampled current sampled by the current transformer 102;

[0101] Sending the second target electrical signal to the relay range hood 300 for the relay range hood 300 to determine the range of the sampled current based on the second target electrical signal and operate according to the operating power corresponding to the range of the sampled current; wherein, different ranges of the sampled current correspond to different operating powers.

[0102] In this embodiment, after receiving the sampled current, the main control module will convert the sampled current into a specific electrical signal, that is, the second target electrical signal, through an internal circuit. The second target electrical signal contains specific information about the sampled current.

[0103] After receiving the second target electrical signal, the relay range hood 300 will analyze the second target electrical signal to obtain the value of the sampled current.

[0104] In the relay range hood 300, the corresponding relationship between the range of the sampled current and the operating power is stored, and each range corresponds to an operating power. The corresponding relationship is preset according to the performance characteristics of the range hood 200 and the relay range hood 300 and the actual application scenario. For example, when the sampled current is in a lower range, it indicates that the working load of the range hood 200 is small and the amount of oil fume is relatively small, and a lower operating power can be corresponding to save energy. When the sampled current is in a higher range, it indicates that the amount of oil fume is large and stronger suction ability is required, corresponding to a higher operating power.

[0105] In one example, the sampled current is Icx, and Iw1, Iw2, Iw3, Iw4, Iw5, Iw6 are the boundaries of different ranges, and the corresponding relationship is as follows:

[0106] If 0 < Icx < Iw1; the relay range hood 300 is set to operate at a power of 50w;

[0107] If Iw1 < Icx < Iw2; the relay range hood 300 is set to operate at a power of 100w;

[0108] If Iw2 < Icx < Iw3; the relay range hood 300 operates at a set power of 150 w;

[0109] If Iw3 < Icx < Iw4; the relay range hood 300 operates at a set power of 200 w;

[0110] If Iw4 < Icx < Iw5; the relay range hood 300 operates at a set power of 250 w;

[0111] If Iw5 < Icx < Iw6; the relay range hood 300 operates at a set power of 300 w.

[0112] In this embodiment, by using the sampled current obtained by the mutual inductor sampling, a second target electrical signal is generated and sent to the relay range hood. After receiving the signal, the relay range hood can determine its corresponding operating power according to the range of the sampled current, realizing the dynamic adjustment of the working state of the relay range hood, making the operation of the relay range hood more in line with the actual kitchen fume exhaust requirements. When the working current of the range hood changes, the relay range hood can quickly respond, adjust its own operating power, and improve the effect of fume extraction under different working conditions.

[0113] In some embodiments, the main control module 101 includes a control circuit; the control circuit includes a plurality of first resistors in parallel with different resistance values, and a transistor; the transistor is connected in series with the parallel circuit of the plurality of first resistors;

[0114] Each of the plurality of first resistors corresponds to a DIP switch;

[0115] The main control module 101 is further configured to: based on the linkage gear, select a target first resistor to be turned on through the DIP switch to change the conduction current of the transistor; when the sampled current of the mutual inductor is greater than the conduction current, determine that the working gear of the range hood is higher than the linkage gear, the transistor conducts, and a first target electrical signal is generated and sent to the relay range hood.

[0116] In an example, as Figure 2 shown, the control circuit may include a plurality of first resistors, namely resistors R1, R2, R3, and R4. R1, R2, R3, and R4 are connected in parallel, and each corresponds to a DIP switch S1. By adjusting the DIP switch, a target first resistor to be turned on can be selected from R1, R2, R3, and R4. For example, when the DIP switch S1-1 is closed, R1 is connected as the target first resistor to the control circuit; when the DIP switch S1-2 is closed, R2 is connected as the target first resistor to the control circuit; when the DIP switch S1-3 is closed, R3 is connected as the target first resistor to the control circuit; when the DIP switch S1-4 is closed, R4 is connected as the target first resistor to the control circuit.

[0117] Transistor Q1 acts as a switch in the control circuit. Taking a field-effect transistor (MOSFET) as an example, the switching mechanism is based on the regulation of the semiconductor channel by an electric field. When no voltage is applied to the gate or the voltage is below the threshold (or the current is below the threshold), the semiconductor region between the source and drain is in a high resistance state due to a lack of sufficient carriers, and current can hardly pass through, which is equivalent to the switch being "off." However, when a sufficiently high voltage is applied to the gate, the electric field induces a large number of carriers on the semiconductor surface below the insulating layer, forming a low-resistance conductive channel. The source and drain are connected, and current can flow smoothly, which is equivalent to the switch being "closed."

[0118] In this embodiment, because resistors R1, R2, R3, and R4 have different resistance values, the on-current of transistor Q1 can be adjusted by selecting different resistors to be turned on. For example, if R1 has the smallest resistance value, then DIP switch S1-1 is closed, and R1 is connected to the control circuit as the target first resistor, so that a smaller sampling current can turn on transistor Q1. If R4 has the largest resistance value, then DIP switch S1-4 is closed, and R4 is connected to the control circuit as the target first resistor, so that a larger sampling current can turn on transistor Q1.

[0119] In this embodiment, different linkage gears are connected to different first resistors, and the resistance value of the first resistor connected to the high linkage gear is greater than the resistance value of the first resistor connected to the low linkage gear.

[0120] In one example, if the linkage gear is low, and the relay range hood 300 needs to be activated when the range hood 200 is in low gear or above, DIP switch S1-1 can be closed, and R1 is connected to the control circuit as the target first resistor, setting the on-current of transistor Q1 to a low value. Since the operating current is low when the range hood 200 is in low gear, the corresponding sampling current is also low. A low sampling current can also be greater than or equal to the on-current, turning on transistor Q1 and generating the first target electrical signal.

[0121] If the linkage gear is in the middle gear, and the relay range hood 300 needs to be triggered when the range hood 200 is in the middle gear or above, the DIP switch S1-2 can be closed, and R2 can be connected to the control circuit as the target first resistor, setting the on-current of transistor Q1 to medium. Since the operating current of the range hood 200 is larger than that of the low gear when it is in the middle gear, the corresponding sampling current is also larger. In this case, the sampling current can be greater than or equal to the on-current, and transistor Q1 is turned on. When the range hood 200 is in the high gear, the operating current is greater than that of the middle gear, and the corresponding sampling current is also greater. In this case, the sampling current is also greater than the on-current, and transistor Q1 is turned on. When the range hood 200 is in the low gear, the operating current is smaller than that of the middle gear, and the corresponding sampling current is also smaller. In this case, the sampling current is less than the on-current, and transistor Q1 is not turned on. Therefore, the first target electrical signal is not generated, and the relay range hood is not started at the low gear.

[0122] Correspondingly, if the linkage gear is high, it is necessary to trigger the start of the relay range hood 300 when the working gear of the range hood 200 is high. You can choose to close the dial switch S1-3, connect R3 as the target first resistor to the control circuit, and set the conduction current of the transistor Q1 to high. If there is no linkage, you can choose to close the dial switch S1-4, connect R4 as the target first resistor to the control circuit, and set the conduction current of the transistor Q1 to the highest. Even if the working gear of the range hood 200 is high, the corresponding sampling current is still less than the conduction current of the transistor Q1, and the transistor Q1 is not conducting. It should be noted that in the above example, the resistance value of R4 is greater than the resistance value of R3, the resistance value of R3 is greater than the resistance value of R2, and the resistance value of R2 is greater than the resistance value of R1.

[0123] In this embodiment, by setting multiple first resistors with different resistance values and connected in parallel in the control circuit and matching corresponding dip switches, the resistor to be turned on can be selected through the dip switch according to the linkage gear set by the user. The characteristics of the resistor and the transistor are utilized, and the conduction current threshold of the transistor is controlled by adjusting the resistance value. When the sampling current of the mutual inductor is greater than the conduction current, it can be determined that the working gear of the range hood meets the conditions, triggering the transistor to turn on to generate the first target electrical signal, and controlling the relay range hood to start. Through this combination of hardware circuit and logical judgment, the user can flexibly adjust the linkage gear according to different usage scenarios, further improving the effect of extracting oil smoke and user experience.

[0124] In some embodiments, the transistor of the control circuit is connected in series with a first circuit and a second circuit arranged in parallel; the first circuit and the second circuit respectively correspond to a control switch; wherein the resistance value of the first circuit is smaller than the resistance value of the second circuit;

[0125] The main control module is further configured to: when the user selects the first linkage control mode, control the first circuit to be turned on by controlling the switch.

[0126] like Figure 2 As shown, in this embodiment, the first circuit and the second circuit each have a corresponding control switch Sx. The main control module 101 can selectively connect or disconnect the first circuit and the second circuit by controlling the switch Sx. The second circuit can also include a resistor R6, so that the resistance value of the first circuit is smaller than the resistance value of the second circuit.

[0127] When the user selects the first linkage control mode, the main control module 101 can control the switch Sx to be connected to point A to control the conduction of the first circuit.

[0128] In this embodiment, through the parallel design of the first circuit and the second circuit, combined with the control of the control switch, when the user selects the first linkage control mode, the main control module turns on the first circuit through the control switch. Since the resistance value of the first circuit is smaller than that of the second circuit, turning on the first circuit can provide a low-resistance path for the transistor, thereby generating a first target electrical signal and a second target electrical signal with differences, so that the relay range hood can adjust the working state accordingly according to the received signal, meeting the user's needs to adjust the linkage control mode, and further improving the effect of extracting oil smoke and user experience.

[0129] In some embodiments, the main control module is further configured to:

[0130] When the user selects the second linkage control mode, the second circuit is controlled to be turned on by the control switch, and the multiple first resistors are controlled to be turned on by the dip switch to reduce the conduction current of the transistor, and the second target electrical signal is generated according to the sampled current obtained by the mutual inductor sampling.

[0131] In this embodiment, when the user selects the first linkage control mode, the main control module 101 can control the switch Sx to connect to point B to control the conduction of the second circuit. In addition, the main control module 101 controls the DIP switches S1-1, S1-2, S1-3, and S1-4 to be closed, so that the first resistors R1, R2, R3, and R4 are connected in parallel to the control circuit, adjusting the conduction current of the transistor Q1 to a smaller value, so that the smaller sampling current can also turn on the transistor Q1, thereby generating the second target electrical signal.

[0132] In this embodiment, when the user selects the second linkage control mode, the main control module controls the conduction of the second circuit with a larger resistance value, and cooperates with the dip switch to control the conduction of multiple first resistors, thereby reducing the conduction current of the transistor. Therefore, even when the working current of the range hood is low, the second target electrical signal can be generated based on the conduction of the transistor and the conduction of the second circuit with a larger resistance value. This allows the relay range hood to dynamically adjust the operating power according to the second target electrical signal, thereby improving the effect of extracting oil fumes under different working conditions.

[0133] Below Figure 2 The principle of the control circuit is introduced in this paper.

[0134] CON1 and CON2 are terminals. CON1-1 is the ground (GND) interface, CON1-2 is the interface for connecting to transformer 102, CON2-1 is the power interface, CON2-2 is the interface for connecting to relay 103, CON2-3 is the ground interface, CON2-4 is the AD (Analog-to-Digital) sampling interface, and C1, C2, and C3 are capacitors. Resistor R5 is used to limit the current of transistor Q1 for protection.

[0135] In this control circuit, the sampling current is input through CON1-2, passes through diode D1, and then divided by R1-R5 to input to transistor Q1. If the sampling current is greater than or equal to the conduction current of transistor Q1, transistor Q1 is turned on.

[0136] In the first linkage control mode, the control switch Sx is connected to point A, and the signal is input to CON2 - 2 through point A and output to the relay 103 by CON2 - 2 .

[0137] In the second linkage control mode, the control switch Sx is connected to point B, and the signal is input to CON2 - 2 through the resistor R6 and point B, and is output from CON2 - 2 to the relay 103 .

[0138] The embodiment of the present application further provides a relay range hood, which is electrically connected to the range hood and the linkage control device of the relay range hood;

[0139] The relay range hood is used to receive the target electrical signal sent by the main control module; when the target electrical signal includes the first target electrical signal, it is started according to the preset gear.

[0140] According to the relay range hood of the present application, the linkage gear is compared with the range hood working gear based on the linkage control mode selected by the user and the linkage gear set. When the range hood working gear is higher than the linkage gear, the relay range hood is controlled to start, thereby achieving orderly coordination between the range hood and the relay range hood during operation, reducing the possibility of premature startup of the relay range hood, resulting in startup failure or other malfunctions of the range hood due to airflow interference, and enabling the range hood and the relay range hood to form an orderly and stable airflow organization when working together, thereby improving the effect of extracting oil fumes.

[0141] In some embodiments, the relay smoke machine is further used to:

[0142] Receive a target electrical signal sent by the main control module; when the target electrical signal includes a second target electrical signal, determine a range of a sampling current based on the second target electrical signal, and operate according to an operating power corresponding to the range of the sampling current; wherein different sampling current ranges correspond to different operating powers.

[0143] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0144] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0145] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

[0146] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0147] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A linkage control device for a range hood and a relay range hood, characterized in that: The linkage control device is electrically connected to the range hood and the relay range hood respectively; the linkage control device includes a main control module; The main control module is configured to obtain the linkage gear position set by the user when the user selects the first linkage control mode; and control the relay range hood to start in response to the operating gear position of the range hood being higher than the linkage gear position.

2. The device according to claim 1, characterized in that The linkage control device further includes a mutual inductor; The mutual inductor is used to sample the working current of the range hood to obtain a sampled current, and output the sampled current to the main control module; The main control module is used to determine whether the working gear of the range hood is higher than the linkage gear according to the sampled current.

3. The device according to claim 1, characterized in that The controlling the relay range hood to start up includes: generating a first target electrical signal according to a sampled current obtained by sampling the mutual inductor; The first target electrical signal is sent to the relay range hood, so that the relay range hood is started according to a preset gear position based on the first target electrical signal.

4. The device according to claim 1, characterized in that The main control module is further used to: When the user selects the second linkage control mode, monitoring the operating current of the range hood; The operating power of the relay range hood is controlled according to the operating current; wherein different ranges of the operating current correspond to different operating powers.

5. The device according to claim 4, characterized in that The controlling the operating power of the relay range hood according to the working current includes: generating a second target electrical signal according to a sampled current obtained by sampling the mutual inductor; The second target electrical signal is sent to the relay range hood, so that the relay range hood determines the range of the sampling current based on the second target electrical signal, and operates according to the operating power corresponding to the range of the sampling current; wherein different ranges of the sampling current correspond to different operating powers.

6. The device according to claim 1, characterized in that The main control module includes a control circuit; the control circuit includes a plurality of first resistors connected in parallel and having different resistance values, and a transistor; the transistor is connected in series with the parallel circuit of the plurality of first resistors; Each of the first resistors corresponds to a DIP switch; The main control module is also used to: based on the linkage gear, select the target first resistor to be turned on through the dip switch to change the conduction current of the transistor; when the sampling current of the mutual inductor is greater than the conduction current, determine that the working gear of the range hood is higher than the linkage gear, the transistor is turned on, and a first target electrical signal is generated and sent to the relay range hood.

7. The device according to claim 1, characterized in that The transistor of the control circuit is connected in series with a first circuit and a second circuit arranged in parallel; the first circuit and the second circuit respectively correspond to a control switch; wherein the resistance value of the first circuit is smaller than the resistance value of the second circuit; The main control module is further configured to control the first circuit to be turned on through the control switch when the user selects the first linkage control mode.

8. The device according to claim 7, characterized in that The main control module is also used for: When the user selects the second linkage control mode, the second circuit is controlled to be turned on by the control switch, and the multiple first resistors are controlled to be turned on by the dip switch to reduce the conduction current of the transistor, and the second target electrical signal is generated according to the sampled current obtained by the mutual inductor sampling.

9. A relay range hood, characterized in that: The relay range hood is electrically connected to the linkage control device of the range hood and the relay range hood according to any one of claims 1 to 8; The relay range hood is configured to receive a target electrical signal from the main control module; and to start at a preset gear position when the target electrical signal includes a first target electrical signal.

10. The relay range hood according to claim 9, characterized in that: The relay smoke machine is also used for: Receive a target electrical signal sent by the main control module; when the target electrical signal includes a second target electrical signal, determine a range of a sampling current based on the second target electrical signal, and operate according to an operating power corresponding to the range of the sampling current; wherein different ranges of the sampling current correspond to different operating powers.

Images