Range hood, fan module and control method of fan module

Abstract

The invention relates to an extractor hood, a fan module and a control method of the fan module. The fan module comprises a shell assembly and a wind wheel assembly arranged in the shell assembly. A first air outlet channel and a second air outlet channel are at least formed in the shell assembly, and a first air outlet and a second air outlet are formed in the shell assembly; wherein the first end of the first air outlet channel leads to the wind wheel assembly, the first air outlet is located at the second end of the first air outlet channel, the first end of the second air outlet channel communicates with the first air outlet channel, and the second air outlet is located at the second end of the second air outlet channel; the first air outlet is configured to discharge air in the first direction, the second air outlet is configured to discharge air in the second direction, and an angle is formed between the first direction and the second direction. Namely, the first air outlet and the second air outlet can guide the air flow to different directions respectively, so that the blowing range of the fan module is enlarged.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a range hood, a fan module and a control method thereof. Background Art

[0002] In modern families, the process of cooking in the kitchen is often accompanied by high temperatures. Cooks need to endure high temperatures during the operation, especially when cooking in front of the stove. People usually place a fan or install a kitchen air conditioner in the kitchen to cool down and reduce the workload. However, the cost of kitchen air conditioners is relatively high, and fans are still the most cost-effective choice for the general public.

[0003] In the related art, the fan and the range hood are generally integrated for more convenient use, but the air outlet of the fan is only arranged on the front panel, and the air can only be blown to the area opposite to the range hood, and the blowing range is small. Summary of the invention

[0004] Based on this, it is necessary to provide a range hood, a fan module and a control method thereof to address the problem that the fan has a small blowing range.

[0005] A range hood fan module, the fan module comprising:

[0006] A wind wheel assembly is arranged in the housing assembly;

[0007] A shell component, wherein the shell component has at least a first air outlet channel and a second air outlet channel, and the shell component is provided with a first air outlet and a second air outlet;

[0008] Among them, the first end of the first air outlet channel leads to the wind wheel assembly, the first air outlet is located at the second end of the first air outlet channel, the first end of the second air outlet channel is connected to the first air outlet channel, the second air outlet is located at the second end of the second air outlet channel, the first air outlet is configured to discharge air along a first direction, the second air outlet is configured to discharge air along a second direction, and the first direction is set at an angle to the second direction.

[0009] In one of the embodiments, the fan module includes a stop structure, which is arranged at a first end of the second air outlet channel, and the stop structure is used to change at least part of the airflow direction so that at least part of the airflow flows toward the second air outlet.

[0010] In one embodiment, the shell assembly includes a shell having a front wall and at least one side wall connected to the front wall, the first air outlet is located on the front wall, and the second air outlet is located on the side wall.

[0011] In one of the embodiments, the front wall is parallel to the axis of the wind wheel assembly, and the front wall is located at one end of the wind wheel assembly along the first direction.

[0012] In one embodiment, the front wall has side walls on two opposite sides, and the air outlet directions of the second air outlets on the two side walls are opposite;

[0013] The wind wheel assembly includes two wind wheels spaced apart along a second direction via a bracket, and each of the second air outlets is communicated with the wind wheel via a corresponding second air outlet channel.

[0014] In one embodiment, the stop structure includes a front panel, which is movably disposed on the outer shell, and the front panel is used to close or open the first air outlet. When the first air outlet is closed, the front panel is used to allow the airflow in the first air outlet channel to flow into the second air outlet channel.

[0015] In one embodiment, the stop structure includes a wind sweeping component, and the two ends of the wind sweeping component along the second direction are respectively connected to the shell for rotation. The wind sweeping component is located in the first air outlet, and when the wind sweeping component rotates, it is used to sweep air in the up and down directions.

[0016] In one embodiment, the wind sweeping assembly includes at least two wind sweeping plates parallel to each other, and at least two wind sweeping plates are rotatably connected to the housing at both ends along the second direction;

[0017] When the wind sweeping plate is parallel to the front panel, the wind sweeping assembly is closed, and the wind sweeping plate is used to allow part of the airflow in the first air outlet channel to flow into the second air outlet channel; when the wind sweeping plate is inclined or perpendicular to the front panel, the wind sweeping assembly is opened.

[0018] In one of the embodiments, the fan module also includes a controller and a human body sensing sensor, the human body sensing sensor is arranged on the casing, and the controller is used to control the air outlet of the first air outlet channel and / or the air outlet of the second air outlet channel according to the detection signal of the human body sensing sensor.

[0019] In one of the embodiments, the human body sensing sensor is provided at the connection position between the front wall and the side wall.

[0020] A method for controlling a fan module comprises the following steps:

[0021] Turn on the front blowing mode;

[0022] Determine whether the area where the human body is located is the front area or the side area. If it is the front area, maintain the front blowing mode; if it is the side area, determine the proportion of time spent in the side area;

[0023] If the time proportion in the side area is greater than or equal to the first preset time proportion, the front air outlet mode is turned off and the side air outlet mode is turned on.

[0024] In one embodiment, the control method further includes:

[0025] If the detected area where the human body is located is the side area, and the proportion of the time in the side area is less than the first preset proportion of time;

[0026] It is then determined whether the proportion of the time the human body spends in the side area and the proportion of the time in the front area are both greater than the second preset time proportion. If so, the front and side blowing modes are turned on at the same time; if not, only the front blowing mode is maintained; wherein, when the fan module is in the front and side blowing modes, the front panel is opened, the wind sweeping component is closed, and the wind wheel rotates, and the sum of the first preset time proportion and the second preset time proportion is 1.

[0027] A range hood comprises a range hood body and a fan module, wherein the fan module is arranged on the range hood body.

[0028] In the above-mentioned range hood, fan module and control method thereof, when the wind wheel assembly rotates, the airflow flows along the first air outlet channel to directly discharge air through the first air outlet, or at least part of the airflow flows through the first air outlet channel to the second air outlet channel to discharge air through the second air outlet, and the first direction is set at an angle to the second direction. That is, through the wind guiding effect of the first air outlet channel and the second air outlet channel, the airflow can be directed to different directions through the first air outlet and the second air outlet, respectively, so as to increase the blowing range of the fan module and improve the user's comfort experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the structure of a range hood in one embodiment.

[0030] Figure 2 FIG. 4 is a schematic diagram of the internal structure of a fan module in an embodiment.

[0031] Figure 3 FIG. 1 is a schematic diagram of the airflow direction of a fan module in a side air outlet mode in an embodiment.

[0032] Figure 4 Schematic diagram of airflow direction of a fan module in front and side air outlet modes in one embodiment.

[0033] Figure 5 Schematic diagram of the external structure of the fan module when the front panel is closed in one embodiment.

[0034] Figure 6Schematic diagram of the external structure of the fan module when the front panel is open and the wind sweeping component is closed in one embodiment.

[0035] Figure 7 Schematic diagram of the external structure of the fan module when the front panel is opened and the wind sweeping component is opened in one embodiment.

[0036] Figure 8 4 is a flow chart of a control method of a fan assembly in one embodiment.

[0037] Figure numerals: 10, fan module; 100, shell assembly; 110, shell; 111, front wall; 112, side wall; 113, top wall; 114, filter; 115, air inlet; 120, front panel; 121, connecting rod assembly; 122, lifting motor; 123, support plate; 124, through hole; 130, first air outlet channel; 131, first air outlet; 140, second air outlet channel; 141, second air outlet; 200, wind wheel assembly; 210, wind wheel; 220, dual-axis motor; 300, wind sweeping assembly; 310, wind sweeping plate; 400, air outlet assembly; 500, human body sensing sensor; 20, range hood body. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0044] See also Figure 1-Figure 7A fan module 10 is provided in one embodiment of the present application, and the fan module 10 includes a shell assembly 100 and a wind wheel assembly 200 arranged in the shell assembly 100; the shell assembly 100 is provided with at least a first air outlet 131 and a second air outlet 141, and the shell assembly 100 has at least a first air outlet channel 130 and a second air outlet channel 140; a first end of the first air outlet channel 130 leads to the wind wheel assembly 200, the first air outlet 131 is located at the second end of the first air outlet channel 130, a first end of the second air outlet channel 140 is connected to the first air outlet channel 130, and the second air outlet 141 is located at the second end of the second air outlet channel 140; the first air outlet 131 is configured to discharge air along a first direction, and the second air outlet 141 is configured to discharge air along a second direction, and the first direction and the second direction are arranged at an angle.

[0045] With such a configuration, when the wind wheel assembly 200 rotates, the airflow flows along the first air outlet channel 130 to be discharged directly through the first air outlet 131, or at least part of the airflow flows through the first air outlet channel 130 to the second air outlet channel 140 to be discharged through the second air outlet 141, and the first direction is set at an angle to the second direction. That is, through the wind guiding effect of the first air outlet channel 130 and the second air outlet channel 140, the airflow can be directed to different directions through the first air outlet 131 and the second air outlet 141, respectively, to increase the blowing range of the fan module 10.

[0046] Specifically, the angle between the first direction and the second direction can be any value in the range of 0-180 degrees. For example, when the stove is set close to the wall, the first direction is perpendicular to the second direction, the first direction is directly in front of the stove, and the second direction is the side of the stove; or when the stove is not set against the wall, the angle between the first direction and the second direction is greater than 145 degrees, the first direction is directly in front of the stove, and the second direction is right behind the stove.

[0047] Furthermore, the fan module 10 includes a stop structure, which is arranged at a first end of the second air outlet channel 140 , and is used to change at least part of the airflow direction so that at least part of the airflow in the first air outlet channel 130 flows into the second air outlet channel 140 .

[0048] With such arrangement, when the wind wheel assembly 200 rotates, the airflow first enters the first air outlet channel 130, and then, due to the stopping effect of the stopping assembly, at least part of the airflow changes direction to enter the second air outlet channel 140, and then blows out in the second direction from the second air outlet 141. That is, the present application does not need to add an additional wind wheel assembly, and the blowing range can be increased only by changing the airflow direction.

[0049] In other embodiments, there is no need to provide a stop structure, and a wind wheel assembly can be directly provided at the first end of the second air outlet channel to change the airflow direction in the first air outlet channel.

[0050] Furthermore, the housing assembly 100 includes a shell 110 , the shell 110 has a front wall 111 and at least one side wall 112 connected to the front wall 111 , the first air outlet 131 is located on the front wall 111 , and the second air outlet 141 is located on the side wall 112 .

[0051] With such a configuration, when the user works on the side of the fan module 10, a portion of the airflow is blown out from the second air outlet 141 on the side wall 112 toward the side through the second air outlet channel 140, thereby achieving cooling of the side. That is, the fan module 10 of the present application can not only blow air toward the front, but also toward the side, thereby improving the user's comfort experience.

[0052] The number of the side walls 112 can be one or two. For example, the side walls 112 are respectively provided on the left and right sides of the front wall 111, and the second air outlets 141 are respectively provided on the two side walls 112. When the user works on the left and right sides of the stove, the two air outlets on the left and right sides can blow air respectively. That is, the present application can achieve a wide range of 270 degrees of blowing air, and the blowing effect is good.

[0053] The front wall 111 is parallel to the axis of the wind wheel assembly 200 , and the front wall 111 is located at one end of the wind wheel assembly 200 along the first direction.

[0054] Furthermore, the front wall 111 is parallel to the axis of the wind wheel assembly 200, and the front wall 111 is located at one end of the wind wheel assembly 200 along the first direction, that is, the wind wheel assembly 200 mainly discharges air through the first air outlet 131 on the front wall 111. Since the temperature in front of the stove is the highest, the wind wheel assembly 200 mainly discharges air through the first air outlet 131 on the front wall 111, ensuring that the user can get a better cooling effect when operating in front of the stove.

[0055] Specifically, the front wall 111 has side walls 112 on two opposite sides, and the air outlet directions of the second air outlets 141 on the two side walls 112 are opposite; the wind wheel assembly 200 includes two wind wheels 210 spaced apart along the second direction through a bracket, and each second air outlet 141 is connected to the wind wheel 210 through a corresponding second air outlet channel 140.

[0056] Among them, the fan module 10 includes two coaxially arranged wind wheels 210, and the wind wheels 210 can be cross-flow blades. The cross-flow blades have the characteristics of soft wind, weak and uniform wind feeling, and are more comfortable than axial flow fans when used at close range. A bracket is arranged between the two wind wheels 210, and a dual-axis motor 220 is arranged on the bracket. The dual-axis motor 220 is connected to the two wind wheels 210 at the same time, and is used to drive the left and right wind wheels 210 to rotate simultaneously. The two wind wheels 210 are arranged at intervals by the bracket, that is, the left and right second air outlet channels 140 are not connected, and the second air outlets 141 on the two side walls 112 have opposite air outlet directions, one of the second air outlets 141 is located at the left end of the corresponding second air outlet channel 140, and the other second air outlet 141 is located at the right end of the corresponding second air outlet channel 140, so that the left and right ends of the fan module 10 are evenly divided into wind outlets.

[0057] Combination Figure 5-Figure 6 In some embodiments of the present application, the stop structure includes a front panel 120, which is movably disposed on the housing 110. The front panel 120 is used to close or open the first air outlet 131. When the first air outlet 131 is closed, the front panel 120 is used to allow the airflow in the first air outlet channel 130 to flow into the second air outlet channel 140.

[0058] With such a configuration, on the one hand, when the first air outlet 131 is not needed to discharge air, the front panel 120 closes the first air outlet 131, which is used to improve the aesthetics of the fan module 10 and prevent the first air outlet 131 from being dusted or polluted by oil smoke. On the other hand, when the front panel 120 closes the first air outlet 131, the front panel 120 is used to block the first air outlet 131. At this time, the wind blown out from the wind wheel 210 can be deflected in the second direction under the blocking effect of the front panel 120 to be blown out from the second air outlet 141, so that when only the second air outlet 141 is opened, the air volume of the second air outlet 141 is guaranteed.

[0059] In some embodiments, in combination Figure 2 , the front panel 120 can move in the vertical direction relative to the housing 110. Support plates 123 are respectively provided on both sides of the housing near the left and right side walls 112, and a lifting motor 122 is provided on the support plate 123. The lifting motor 122 is used to drive the connecting rod assembly 121 to rotate to drive the front panel 120 to rise and fall. When the connecting rod assembly 121 rotates, it is used to drive the front panel 120 to move upward, thereby opening the first air outlet 131. When the connecting rod is reset, it is used to drive the front panel 120 to move downward, thereby closing the first air outlet 131. A through hole 124 is provided on the support plate 123 to connect the second air outlet channel 140 with the outside.

[0060] In some other embodiments, the front panel may be rotatably connected to the housing, for example, a rotation shaft extending along the second direction is provided above the front panel, both ends of the rotation shaft are rotatably connected to the housing, and a motor is provided on the housing to drive the front panel to rotate. When the front panel rotates to a horizontal position, the first air outlet is opened, and when the front panel rotates to a vertical position, the first air outlet is closed.

[0061] In some embodiments of the present application, the stop structure includes a wind sweeping assembly 300, and the two ends of the wind sweeping assembly 300 along the second direction are respectively connected to the shell for rotation. The wind sweeping assembly 300 is located in the first air outlet 131. When the wind sweeping assembly 300 rotates, it is used to sweep air in the up and down directions to increase the air outlet range of the first air outlet 131 along the vertical direction.

[0062] Further, combined with Figure 6 and Figure 7 The wind sweeping assembly 300 includes at least two wind sweeping plates 310 parallel to each other, and at least two wind sweeping plates 310 are rotatably connected to the shell at both ends along the second direction; when the wind sweeping plates 310 are parallel to the front panel 120, the wind sweeping assembly 300 is closed, and the wind sweeping plates 310 are used to allow part of the airflow in the first air outlet channel 130 to flow into the second air outlet channel 140; when the wind sweeping plates 310 are inclined or perpendicular to the front panel 120, the wind sweeping assembly 300 is opened.

[0063] Combination Figure 6 When the first air outlet 131 is closed, the wind sweeping assembly 300 is closed, and the wind sweeping plate 310 is parallel to the front panel 120, that is, the wind sweeping plate 310 is in a vertical position to prevent the front panel 120 from interfering with the wind sweeping plate 310 when it is closed. Figure 7 When the first air outlet 131 is opened, the wind sweeping assembly 300 is opened, and when the wind guide assembly rotates, it is used to drive the wind sweeping plate 310 to rotate, thereby realizing the change of wind direction. At the same time, when the first air outlet 131 and the second air outlet 141 are blowing out air, the wind sweeping plate 310 can be closed to block part of the airflow through the wind sweeping plate 310, so that part of the airflow is blown out from the second air outlet 141 along the second direction, and at the same time, part of the airflow is blown out from the gap between the wind sweeping plate 310 and the first air outlet 131 along the first direction, thereby realizing the airflow of the first air outlet 131 and the second air outlet 141 at the same time.

[0064] Of course, the fan module 10 also includes left and right wind guide components, which are arranged at one end of the first air outlet 131 close to the wind wheel 210, that is, they are located in the first air outlet channel 130 and the second air outlet channel 140 at the same time, and are used to realize the left and right wind sweeping of the first air outlet 131. On the other hand, when it is necessary to discharge air through the second air outlet 141, the left and right wind sweeping components 300 are respectively used to guide part of the airflow of the wind wheel 210 to the left and right second air outlets 141, so as to increase the air volume of the second air outlet 141.

[0065] In some embodiments of the present application, the fan module 10 has a front air outlet mode and a side air outlet mode. When the fan module 10 is in the front air outlet mode, the front panel 120 moves to open the first air outlet 131, the wind sweeping assembly 300 is turned on, and the wind wheel assembly 200 is turned on; Figure 3 When the fan module 10 is in the side air outlet mode, the front panel 120 moves to close the first air outlet 131, the wind sweeping component 300 is closed, and the wind wheel component 200 is opened.

[0066] Further, combined with Figure 4 The fan module 10 has a front side air outlet mode. When the fan module 10 is in the front side air outlet mode, the front panel 120 moves to open the first air outlet 131, the wind sweeping component 300 is closed, and the wind wheel component 200 is opened.

[0067] Combination Figure 1 In some embodiments of the present application, the fan module 10 also includes a controller and a human body sensing sensor 500. The human body sensing sensor 500 is disposed on the housing assembly 100. The controller is used to control the air outlet of the first air outlet channel 130 and / or the air outlet of the second air outlet channel 140 according to the detection signal of the human body sensing sensor 500.

[0068] The controller may be a microprocessor or an ASIC. The human body sensing sensor 500 may be a pyroelectric infrared sensor, an ultrasonic sensor, or a microwave radar sensor.

[0069] Specifically, the human body sensing sensor 500 is disposed at the connection position between the front wall 111 and the side wall 112 , so as to detect whether the human body is located in the front area or the side area.

[0070] Of course, human body sensing sensors 500 may be respectively disposed on the front wall 111 and the side wall 112 , and the human body sensing sensors 500 located on the front wall 111 and the side wall 112 are simultaneously connected to the controller signal.

[0071] Combination Figure 2 In some embodiments, the fan module 10 further includes an air outlet assembly 400 , which is installed in the first air outlet channel 130 . The air outlet assembly 400 may be a grille for safety protection.

[0072] Combination Figure 8 An embodiment of the present application further provides a control method for a fan module 10, comprising the following steps:

[0073] Turn on the front blowing mode;

[0074] Determine whether the area where the human body is located is the front area or the side area. If it is the front area, maintain the front blowing mode; if it is the side area, determine whether the time length proportion P in the side area is greater than or equal to the first preset time length proportion N;

[0075] If the duration proportion P in the side area is greater than or equal to the first preset duration proportion N, the front air outlet mode is turned off and the side air outlet mode is turned on; wherein the duration proportion refers to the ratio of the total duration of the area to the total operating time.

[0076] Among them, when the fan module 10 is in the front blowing mode, the front panel 120 is opened, the wind sweeping component 300 is turned on, and the wind wheel 210 rotates; when the fan module 10 is in the side blowing mode, the front panel 120 is closed, the wind sweeping component 300 is closed, and the wind wheel 210 rotates.

[0077] Specifically, before the step of opening the front blower, the process also includes: program self-checking, which is to judge whether the operation is normal through current abnormality or other feedback. If the program self-checking judges that it is normal, the subsequent steps are carried out. If the program self-checking judges that it is abnormal, the machine is directly shut down.

[0078] When in use, after the user turns on the fan, the program self-check is first performed. If the self-check is normal, the front blowing mode is turned on. In the front blowing mode, the front panel 120 is opened, the wind sweeping component 300 is turned on, and the wind wheel 210 rotates, that is, the wind blown out from the wind wheel 210 can pass through the wind sweeping component 300 and be blown out from the first air outlet 131. During this process, the human body sensing sensor 500 detects the area where the human body is located. If it is detected that the human body is always in the front area, the front blowing mode is maintained; if it is detected that the human body is in the side area, the time proportion P of the human body in the side area is determined; wherein, the time proportion P in the side area is the cumulative time in the side area divided by the total running time, and the time proportion Q in the front area is the cumulative time in the front area divided by the total running time. If the time proportion P in the side area is greater than or equal to the first preset time proportion N, the front air outlet mode is turned off and the side air outlet mode is turned on; wherein the first preset time proportion N is pre-set in the controller, and the first preset time proportion N>50%, for example, the first preset time proportion N is 60%, 70%, and 80%.

[0079] Taking the first preset duration ratio N as 60% as an example, when the human body sensing sensor 500 detects that the human body is in the side area, and the duration ratio P in the side area is greater than or equal to 60%, it means that the human body is in the side area most of the time. At this time, the sweeping blade is closed, the panel is lowered and closed, and the wind wheel 210 keeps normal operation. When the airflow passes through the air outlet, it is sealed and blocked by the front panel 120. At the same time, the sweeping blade is in a vertical position. The airflow is guided by the sweeping blade and blown out through the side air outlets on the left and right sides, so as to achieve air blowing and cooling of the positions other than the front of the stove, meet the user's needs for effective cooling in the pre-cooking preparation process and the post-meal cleaning position, and improve the use efficiency and experience of the fan module.

[0080] Furthermore, the control method also includes:

[0081] If the detected area where the human body is located is the side area, and the duration P in the side area is less than the first preset duration N;

[0082] It is then determined whether the proportion of time P that the human body spends in the side area and the proportion of time Q that the human body spends in the front area are both greater than the second preset proportion of time 1-N. If so, the front and side blowing modes are turned on at the same time; if not, only the front blowing mode is maintained; wherein, when the fan module 10 is in the front and side blowing modes, the front panel 120 is opened, the wind sweeping component 300 is closed, the wind wheel 210 rotates, and the sum of the first preset proportion of time N and the second preset proportion of time 1-N is 1.

[0083] Taking the second preset time length of 40% as an example, if the human body's activity time in the front area and the side area is greater than 40%, it means that the human body moves back and forth in the front area and the side area. At this time, the front and side blowing modes can be turned on at the same time. Specifically, the wind sweeping plate 310 rotates parallel to the front panel 120, the panel is opened, and the wind sweeping plate 310 blocks part of the airflow, so that part of the airflow is blown out from the second air outlet 141 along the second direction, and at the same time, part of the airflow is blown out from the gap between the wind sweeping plate 310 and the first air outlet 131 along the first direction, thereby achieving front and side blowing at the same time.

[0084] Furthermore, the side area includes a left area and a right area, and the side air outlet mode includes a left air outlet mode and a right air outlet mode. The above method can be used to determine the proportion of time the human body is in the left area and the right area, so as to turn on the left air outlet mode and the right air outlet mode respectively.

[0085] It should be noted that the two axes of the dual-axis motor 220 can be controlled separately. When a person moves for a long time in the left area of ​​the stove, such as preparing food or washing dishes, the left motor axis can be turned on separately to drive the left crossflow fan blade to rotate, so as to achieve left-side air outlet, thereby reducing energy consumption and noise. Similarly, when a person moves for a long time in the right area, the right motor axis can be turned on separately to drive the right crossflow fan blade to rotate, so as to achieve right-side air outlet.

[0086] The present application obtains the user's position and duration through a human body sensor, and then adjusts the front panel 120 and the state of the wind sweeping blades through a controller to achieve front air outlet mode, side air outlet mode, and switching between front and side air outlet modes, so that the air outlet direction covers a 270° range on the surrounding side, breaking the problem of wind sweeping angle limitation, greatly improving user comfort, and also improving the efficiency of product use.

[0087] Combination Figure 1 An embodiment of the present application further provides a range hood, including a range hood body 20 and a fan module 10 , wherein the fan module 10 is disposed on the range hood body 20 .

[0088] The fan module 10 has an air inlet 115, which is arranged on the inhalation side away from the range hood body 20. The air inlet 115 is provided with a filter 114 to prevent oil smoke from entering the fan module 10 and damaging the wind wheel 210 and the motor. In addition, the filter 114 can also be used for safety protection, and the filter 114 can be a metal filter. Specifically, the air inlet 115 is opened on the top wall 113 of the housing 110.

[0089] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A fan module, characterized in that: The fan module comprises: A shell component, wherein the shell component has at least a first air outlet channel and a second air outlet channel, and the shell component is provided with a first air outlet and a second air outlet; A wind wheel assembly is arranged in the housing assembly; Among them, the first end of the first air outlet channel leads to the wind wheel assembly, the first air outlet is located at the second end of the first air outlet channel, the first end of the second air outlet channel is connected to the first air outlet channel, the second air outlet is located at the second end of the second air outlet channel, the first air outlet is configured to discharge air along a first direction, the second air outlet is configured to discharge air along a second direction, and the first direction is set at an angle to the second direction.

2. The fan module according to claim 1, characterized in that: The fan module includes a stop structure, which is arranged at a first end of the second air outlet channel, and is used to change at least part of the airflow direction so that at least part of the airflow in the first air outlet channel flows into the second air outlet channel.

3. The fan module according to claim 2, characterized in that: The housing assembly comprises a shell having a front wall and at least one side wall connected to the front wall, the first air outlet is located on the front wall, and the second air outlet is located on the side wall.

4. The fan module according to claim 3, characterized in that: The front wall has side walls on two opposite sides, and the air outlets of the second air outlets on the two side walls have opposite air outlet directions; The wind wheel assembly includes two wind wheels spaced apart along a second direction via a bracket, and each of the second air outlets is communicated with the wind wheel via a corresponding second air outlet channel.

5. The fan module according to claim 3, characterized in that: The stopping structure includes a front panel, which is movably arranged on the outer shell, and the front panel is used to close or open the first air outlet. When the first air outlet is closed, the front panel is used to allow the airflow in the first air outlet channel to flow into the second air outlet channel.

6. The fan module according to claim 5, characterized in that: The stop structure includes an air sweeping component. Two ends of the air sweeping component along the second direction are respectively rotatably connected to the shell, and the air sweeping component is located in the first air outlet.

7. The fan module according to claim 6, characterized in that: The wind sweeping assembly comprises at least two wind sweeping plates parallel to each other, and at least two wind sweeping plates are rotatably connected to the housing at both ends along the second direction; When the wind sweeping plate is parallel to the front panel, the wind sweeping assembly is closed, and the wind sweeping plate is used to allow part of the airflow in the first air outlet channel to flow into the second air outlet channel; when the wind sweeping plate is inclined or perpendicular to the front panel, the wind sweeping assembly is opened.

8. The fan module according to claim 3, characterized in that: The fan module also includes a controller and a human body sensing sensor, wherein the human body sensing sensor is arranged on the housing, and the controller is used for controlling the air outlet of the first air outlet channel and / or the air outlet of the second air outlet channel according to a detection signal of the human body sensing sensor.

9. The fan module according to claim 8, characterized in that: The human body sensing sensor is arranged at the connection position between the front wall and the side wall.

10. A method for controlling a fan module according to any one of claims 1 to 9, characterized in that: The steps include: Turn on the front blowing mode; Determine whether the area where the human body is located is the front area or the side area. If it is the front area, maintain the front blowing mode; if it is the side area, determine whether the time length ratio in the side area is greater than or equal to the first preset time length ratio; If yes, turn off the front air outlet mode and turn on the side air outlet mode; Among them, the duration ratio refers to the ratio of the total duration of the area to the total operating time.

11. The control method of the fan module according to claim 10, characterized in that: The control method further comprises: If the detected area where the human body is located is the side area, and the proportion of the time in the side area is less than the first preset proportion of time; It is then determined whether the proportion of the time the human body spends in the side area and the proportion of the time the human body spends in the front area are both greater than the second preset time proportion. If so, the front and side blowing modes are turned on at the same time; if not, only the front blowing mode is maintained; wherein, when the fan module is in the front and side blowing modes, the front panel is opened, the wind sweeping component is closed, and the wind wheel rotates, and the sum of the first preset time proportion and the second preset time proportion is 1.

12. A range hood, characterized in that: It comprises a range hood body and a fan module according to any one of claims 1 to 9, wherein the fan module is arranged on the range hood body.

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