A smoke stove linkage system and a control method thereof

Abstract

The application discloses a smoke stove linkage system and a control method thereof, which comprises a smoke machine body and a stove body arranged below the smoke machine body, wherein the smoke machine body is provided with a smoke machine controller, the stove body is provided with a stove controller, and the smoke stove linkage system further comprises a driving motor electrically connected with the smoke machine controller, a temperature sensor electrically connected with the smoke machine controller, and a control assembly electrically connected with the smoke machine controller and the stove controller. The driving motor is arranged at the middle position of the lower end of the smoke machine body. The temperature sensor is connected with the output end of the driving motor so that the driving motor drives the temperature sensor to swing in the transverse direction, so that the temperature sensor obtains the temperature condition at the position above the stove body. The control assembly controls the work of the smoke machine body according to the obtained temperature condition. The structure is simple, and the accuracy of temperature detection at the position above the stove body can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and in particular to a range hood and stove linkage system and its control method. Background Technology

[0002] The combustion of any substance is inevitably accompanied by a localized increase in temperature, which in turn generates thermal radiation of a certain intensity in the surrounding space. By using infrared sensors to measure the thermal radiation signal, it is possible to monitor the generation of flames and changes in the cooking process.

[0003] In existing technologies, most range hood and cooktop linkage systems use fixed single or dual probes to sample the average temperature of the area facing the cooktop. Because the target area is relatively large, this average temperature cannot accurately determine the temperature rise of the food or the changes in the flame. Therefore, the range hood may produce incorrect actions in the range hood and cooktop linkage system. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes a range hood and stove linkage system, which has a simple structure and can effectively improve the accuracy of temperature detection at the position above the stove body.

[0005] In addition, the present invention also proposes a method for linkage control between the range hood and the stove. The method is simple and feasible, and can control the operation of the range hood body according to the temperature at the position above the stove body, so as to achieve linkage between the range hood body and the stove body.

[0006] The first objective mentioned above is achieved through the following technical solution:

[0007] A range hood and cooktop linkage system includes a range hood body and a cooktop body disposed below the range hood body. The range hood body has a range hood controller, and the cooktop body has a cooktop controller. The system also includes:

[0008] A drive motor electrically connected to the range hood controller is located at the middle position of the lower end of the range hood body;

[0009] A temperature sensor electrically connected to the range hood controller is connected to the output terminal of the drive motor so that the drive motor drives the temperature sensor to swing in the lateral direction, thereby allowing the temperature sensor to obtain the temperature at the position above the stove body;

[0010] The control assembly is electrically connected to the range hood controller and the stove body controller, and controls the operation of the range hood body according to the acquired temperature.

[0011] In some embodiments, the drive motor is a stepper motor.

[0012] In some embodiments, a display panel electrically connected to the range hood controller is also included, the display panel being disposed on the range hood body.

[0013] In some embodiments, a fan electrically connected to the smoke hood controller is also included, the fan being disposed within the smoke hood body.

[0014] The second objective mentioned above is achieved through the following technical solution:

[0015] A method for controlling the linkage between a range hood and a cooktop, applied to a range hood and cooktop linkage system as described in any one of claims 1 to 4, the method comprising the steps of:

[0016] The distance between the temperature sensor and the top wall of the stove body is measured to obtain the installation height value of the temperature sensor;

[0017] The temperature measurement area of ​​the temperature sensor is calculated based on the angle value of the field of view of the temperature sensor and the installation height value.

[0018] The number of divisible areas is calculated based on the temperature measurement area and the length of the stove. The area above the stove body is then divided horizontally according to the number of divisible areas to obtain several array areas.

[0019] The temperature sensor is oscillated laterally so that it can detect the temperature of several array regions in sequence, thereby collecting the temperature value of each array region.

[0020] The temperature values ​​of each array region are compared, and the operation of the smoke machine body is controlled based on the comparison results.

[0021] In some embodiments, the step of acquiring the temperature value of each array region by laterally swinging the temperature sensor to sequentially detect the temperature of several array regions includes:

[0022] The number of array regions is equal to the number of steps of the drive motor, so that the actual number of steps can be obtained based on the number of array regions.

[0023] The drive motor is controlled to perform stepping according to the obtained actual stepping value, thereby driving the temperature sensor to swing in the lateral direction.

[0024] When the drive motor advances by one step, the temperature sensor obtains the temperature value of the array area corresponding to the current step value, and so on to collect the temperature value of each array area.

[0025] In some embodiments, the temperature measurement area of ​​the temperature sensor is calculated using the following formula: S = π × (h × tan(θ / 2))², where S is the temperature measurement area of ​​the temperature sensor, π is pi, h is the installation height of the temperature sensor, and θ is the angle of the field of view of the temperature sensor.

[0026] In some implementations, the number of divisible regions is calculated using the following formula: N = L / 2r, where N is the number of divisible regions, L is the length of the stove, and r is the radius of the temperature sensor's temperature measurement area.

[0027] In some embodiments, the field of view of the temperature sensor is 15°.

[0028] In some implementations, the step of comparing the temperature values ​​of each array region and controlling the operation of the smoke hood body based on the comparison results includes:

[0029] The temperature values ​​of each array region are compared to obtain the maximum temperature value;

[0030] If the maximum temperature value drops rapidly to the preset pot-sitting temperature value, it is determined that a pot is placed on the stove body;

[0031] If the maximum temperature value rises rapidly to the preset pot-moving temperature value, it is determined that the pot is being removed from the stove body.

[0032] If the maximum temperature rises to the preset start-up temperature, the range hood body will be turned on.

[0033] If the maximum temperature value drops to the preset shutdown temperature value, the range hood body will be turned off.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects:

[0035] 1. The range hood and stove linkage system of the present invention has a simple structure and can effectively improve the accuracy of temperature detection at the position above the stove body.

[0036] 2. The range hood and stove linkage control method of the present invention is simple and feasible. It can control the operation of the range hood body according to the temperature at the position above the stove body, so as to realize linkage between the range hood body and the stove body. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the range hood and stove linkage system in an embodiment of the present invention;

[0039] Figure 2 This is a flowchart illustrating the range hood and stove linkage control method in an embodiment of the present invention. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below in conjunction with the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. The components of the embodiments of this invention can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of the claimed technical solutions of the invention.

[0042] Example 1:

[0043] like Figure 1 As shown, this embodiment provides a range hood and cooktop linkage system, including a range hood body 1 and a cooktop body 2 disposed below the range hood body 1. The range hood body 1 has a range hood controller, and the cooktop body 2 has a cooktop controller. It also includes:

[0044] The drive motor is electrically connected to the range hood controller and is located at the middle position of the lower end of the range hood body 1.

[0045] Temperature sensor 3 is electrically connected to the range hood controller. Temperature sensor 3 is connected to the output terminal of the drive motor so that the drive motor drives temperature sensor 3 to swing in the lateral direction, thereby allowing temperature sensor 3 to obtain the temperature at the position above the stove body 2.

[0046] The control assembly is electrically connected to the range hood controller and the stove controller, and controls the operation of the range hood body 1 based on the obtained temperature information.

[0047] In this embodiment, a stove body 2 is provided on the surface of the stove, and a range hood body 1 is provided above the stove body 2. Since the range hood body 1 has a range hood controller and the stove body 2 has a stove body controller, the control assembly is electrically connected to the range hood controller and the stove body controller respectively. A drive motor is provided at the middle position of the lower end of the range hood body 1. A temperature sensor 3 is connected to the output end of the drive motor so that the drive motor drives the temperature sensor 3 to swing in the lateral direction. The reciprocating swing of the temperature sensor 3 monitors the temperature above the stove body 2, thereby enabling the temperature sensor 3 to obtain the temperature condition above the stove body 2. The control assembly controls the operation of the range hood body 1 according to the obtained temperature condition. Its structure is simple and can effectively improve the accuracy of temperature detection above the stove body 2.

[0048] In this embodiment, the temperature sensor 3 is preferably an infrared thermopile sensor. The infrared thermopile sensor converts the absorbed infrared radiation into heat energy and converts the temperature change into an electronic signal, which is then amplified and displayed. As a non-contact infrared temperature sensor, the infrared thermopile can quickly measure the surface temperature of an object without direct contact with it. This allows for the measurement of high-temperature, dangerous, or moving objects without contaminating or damaging them.

[0049] Furthermore, the drive motor is a stepper motor.

[0050] In this embodiment, since the drive motor is preferably made of a stepper motor, the drive motor drives the temperature sensor 3 to swing left and right in the lateral direction so that the temperature sensor 3 can detect the temperature of the stove surface. In this way, the temperature measurement range of the temperature sensor 3 can cover the entire stove surface, and the temperature at the position above the stove body 2 can be obtained by the reciprocating swing of the temperature sensor 3.

[0051] Preferably, it also includes a display panel electrically connected to the range hood controller, and the display panel is disposed on the range hood body 1.

[0052] Specifically, it also includes a fan electrically connected to the smoke hood controller, and the fan is installed inside the smoke hood body 1.

[0053] Example 2:

[0054] like Figure 2As shown, this embodiment provides a method for controlling the linkage between the range hood and the cooktop, applied to a range hood and cooktop linkage system as described in any of Embodiment 1. First, the temperature measurement area of ​​the temperature sensor is calculated based on the angle of view and installation height of the temperature sensor, thus dividing the surface of the cooktop into several array areas. Then, the temperature sensor reciprocates laterally to detect the temperature of each array area sequentially, collecting the temperature value of each array area. The temperature values ​​of each array area are compared, and the operation of the range hood is controlled based on the comparison results. This method is simple and feasible, controlling the operation of the range hood based on the temperature above the cooktop, thereby achieving linkage between the range hood and the cooktop. Alternatively, changes in the temperature above the cooktop can be used to determine changes in the flame and cooking status of the cooktop, thereby adjusting the range hood's fan speed, i.e., controlling the fan's on / off state.

[0055] The control method for the linkage between the range hood and the stove in this embodiment specifically includes the following steps:

[0056] Step S101: Measure the distance between the temperature sensor and the top wall of the stove body to obtain the installation height value of the temperature sensor.

[0057] Step S102: Calculate the temperature measurement area of ​​the temperature sensor based on the angle value of the field of view of the temperature sensor and the installation height value.

[0058] In this embodiment, the distance between the temperature sensor and the top wall of the stove body is first measured to obtain the installation height of the temperature sensor. Then, the temperature measurement area of ​​the temperature sensor is calculated using the following formula: S = π × (h × tan(θ / 2))², where S is the temperature measurement area of ​​the temperature sensor, π is pi, h is the installation height of the temperature sensor, and θ is the angle of the temperature sensor's field of view. More preferably, the angle of the temperature sensor's field of view is 15°.

[0059] Step S103: Calculate the number of divisible areas based on the temperature measurement area and the length of the stove, and divide the area above the stove body along the horizontal direction according to the number of divisible areas to obtain several array areas.

[0060] In this embodiment, the length of the stove surface is obtained by measuring its horizontal length. The number of divisible areas is calculated using the following formula: N = L / 2r, where N is the number of divisible areas, L is the length of the stove, and r is the radius of the temperature sensor's measurement area. After calculating the number of divisible areas, the area above the stove body is divided horizontally according to this number, resulting in several array areas.

[0061] In this embodiment, the radius of the temperature sensor's temperature measurement area is calculated using the following formula: r = , where r is the radius of the temperature sensor's measurement area, S is the temperature sensor's measurement area, and π is pi.

[0062] Step S104: The temperature sensor is oscillated laterally so that it can detect the temperature of several array areas in sequence, thereby collecting the temperature value of each array area.

[0063] Specifically, the number of array regions is equal to the number of steps of the drive motor, so that the actual number of steps can be obtained based on the number of array regions.

[0064] The drive motor is controlled to perform stepping according to the actual stepping value obtained, thereby driving the temperature sensor to swing in the lateral direction through the drive motor;

[0065] When the drive motor advances by one step, the temperature sensor obtains the temperature value of the corresponding array area for the current step value, and so on to collect the temperature value of each array area.

[0066] In this embodiment, since the drive motor is preferably a stepper motor, the temperature sensor is driven to swing back and forth in the lateral direction by the drive motor so that the temperature sensor can detect the temperature of several array areas in sequence. First, it is necessary to measure the angle by which the stepper motor drives the temperature sensor to swing when the stepper motor moves one step. When the angle of the temperature sensor swing reaches the angle value of the field of view, it is defined as a region. Thus, the temperature of a temperature measurement area can be detected by the stepper motor with each step. Then, the temperature sensor is driven to swing back and forth in the lateral direction so that the temperature sensor can detect the temperature of several array areas in sequence, thereby collecting the temperature value of each array area.

[0067] Step S105: Compare the temperature values ​​of each array area and control the operation of the smoke machine body according to the comparison results.

[0068] In this embodiment, the array areas at the left and right ends of the stove body are set as the peripheral areas of the stove body, while the remaining array areas are set as the middle area of ​​the stove body.

[0069] The temperature values ​​of each array region are compared to obtain the maximum temperature value;

[0070] If the maximum temperature value drops rapidly to the preset pot-sitting temperature value, it is determined that a pot is placed on the stove body.

[0071] If the maximum temperature rises rapidly to the preset pot-moving temperature, it is determined that the pot is being removed from the stove body.

[0072] If the maximum temperature rises to the preset start-up temperature, the range hood body will be turned on.

[0073] If the maximum temperature drops to the preset shutdown temperature, the range hood will shut off.

[0074] In this embodiment, the temperature values ​​of each array region are compared to determine the maximum temperature value. If the maximum temperature value rises to the preset start-up temperature value (i.e., during normal cooking, the temperature at the top of the stove body slowly rises to the preset start-up temperature value), it is determined that the stove body has ignited, and the range hood can be turned on for smoke extraction. If the maximum temperature value drops rapidly to the preset pot-sitting temperature value (i.e., the temperature in the middle area of ​​the stove body drops rapidly from a high temperature to a low temperature, resulting in a sudden change), it is determined that... When a pot is placed on the stove body, a pot-sitting signal is emitted to remind the operator. If the maximum temperature rapidly rises to the preset pot-removal temperature (i.e., the temperature in the middle area of ​​the stove body rapidly increases from a low temperature to a high temperature, causing a sudden change), it is determined that the pot has been removed from the stove body, and a pot-removal signal is emitted to remind the operator. If the maximum temperature drops to the preset shutdown temperature (i.e., during normal cooking, the temperature at the top of the stove body slowly decreases to the preset shutdown temperature), it is determined that the cooking work has ended, and the range hood is turned off to put the range hood into standby mode. More preferably, after the range hood is activated to extract smoke, the fan speed can be adjusted according to the temperature at the top of the stove body.

[0075] In this embodiment, the preset pot sitting temperature is preferably less than 100°, the preset pot moving temperature is preferably greater than 400°, the preset start-up temperature is preferably 100°, and the preset shutdown temperature is preferably 60°.

[0076] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A method for controlling the linkage between a range hood and a cooktop, comprising a range hood body (1) and a cooktop body (2) disposed below the range hood body (1), wherein the range hood body (1) has a range hood controller and the cooktop body (2) has a cooktop controller, characterized in that, Also includes: A drive motor electrically connected to the range hood controller is located at the middle position of the lower end of the range hood body (1); A temperature sensor (3) is electrically connected to the range hood controller. The temperature sensor (3) is connected to the output end of the drive motor so that the drive motor drives the temperature sensor (3) to swing in the lateral direction, thereby allowing the temperature sensor (3) to obtain the temperature at the position above the stove body (2). The control assembly is electrically connected to the range hood controller and the stove body controller respectively. The control assembly controls the operation of the range hood body (1) according to the obtained temperature conditions. The control method for the linkage between the range hood and the stove includes the following steps: The distance between the temperature sensor and the top wall of the stove body is measured to obtain the installation height value of the temperature sensor; The temperature measurement area of ​​the temperature sensor is calculated based on the angle value of the field of view of the temperature sensor and the installation height value. The number of divisible areas is calculated based on the temperature measurement area and the length of the stove. The area above the stove body is then divided horizontally according to the number of divisible areas to obtain several array areas. The temperature sensor is oscillated laterally so that it can detect the temperature of several array regions in sequence, thereby collecting the temperature value of each array region. The temperature values ​​of each array region are compared, and the operation of the smoke machine body is controlled according to the comparison results. The step of acquiring the temperature value of each array region by laterally swinging the temperature sensor to sequentially detect the temperature of several array regions includes: The number of array regions is equal to the number of steps of the drive motor, so that the actual number of steps can be obtained based on the number of array regions. The drive motor is controlled to perform stepping according to the obtained actual stepping value, thereby driving the temperature sensor to swing in the lateral direction. When the drive motor advances by one step, the temperature sensor obtains the temperature value of the array area corresponding to the current step value, and so on to collect the temperature value of each array area. The temperature measurement area of ​​the temperature sensor is calculated using the following formula: S = π × (h × tan(θ / 2))², where S is the temperature measurement area of ​​the temperature sensor, π is pi, h is the installation height of the temperature sensor, and θ is the angle of the field of view of the temperature sensor.

2. The method for coordinated control of a range hood and stove according to claim 1, characterized in that, The drive motor is a stepper motor.

3. The method for coordinated control of a range hood and stove according to claim 1, characterized in that, It also includes a display panel electrically connected to the range hood controller, the display panel being disposed on the range hood body (1).

4. The method for coordinated control of a range hood and stove according to claim 1, characterized in that, It also includes a fan electrically connected to the smoke machine controller, the fan being disposed within the smoke machine body (1).

5. The method for coordinated control of a range hood and stove according to claim 1, characterized in that, The number of divisible regions is calculated using the following formula: N = L / 2r, where N is the number of divisible regions, L is the length of the stove, and r is the radius of the temperature sensor's temperature measurement area.

6. The method for coordinated control of a range hood and stove according to claim 1, characterized in that, The field of view of the temperature sensor is 15°.

7. The method for coordinated control of a range hood and stove according to claim 1, characterized in that, The step of comparing the temperature values ​​of each array region and controlling the operation of the smoke hood body based on the comparison results includes: The temperature values ​​of each array region are compared to obtain the maximum temperature value; If the maximum temperature value drops rapidly to the preset pot-sitting temperature value, it is determined that a pot is placed on the stove body; If the maximum temperature value rises rapidly to the preset pot-moving temperature value, it is determined that the pot is being removed from the stove body. If the maximum temperature rises to the preset start-up temperature, the range hood body will be turned on. If the maximum temperature value drops to the preset shutdown temperature value, the range hood body will be turned off.

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