Range hood and fan module thereof, and method for mounting filter of fan module

Abstract

The application relates to an oil fume extractor and a fan module thereof, and a mounting method of a filter of the fan module. The fan module comprises a shell, a fan blade and a filter. The shell is provided with an air inlet and an air outlet, the air inlet comprises a mounting section and a shielding section arranged along a first direction; the fan blade is rotatably arranged in the shell and used for blowing air entering the air inlet out of the air outlet; and the filter is mounted on the air inlet and comprises at least two filter screens which can be moved from the mounting section into the shielding section along the first direction. The filter screens are arranged in sections so that the filter screen located in the shielding section can be mounted into the air inlet through the mounting section and then moved into the shielding section from the mounting section along the first direction, thereby avoiding the problem that the filter screen interferes with a check valve during mounting of the filter screen, and the mounting and dismounting of the filter screen are difficult.

Description

Technical Field

[0001] This application relates to the field of range hood technology, and in particular to a range hood and its fan module, and a method for installing the filter of the fan module. Background Technology

[0002] A range hood with a fan module consists of a fan module and a range hood module. The main function of the range hood module is to extract cooking fumes, while the main function of the fan module is to accelerate airflow circulation in the kitchen for cooling. Because the range hood needs to be used in the high-oil, high-salt environment of the kitchen, the air entering the fan module contains a high concentration of cooking fumes, which can easily lead to malfunctions in the motor and fan blades inside the fan module.

[0003] In related technologies, a filter screen is generally installed at the air inlet to filter the air entering the fan module, thereby reducing the risk of motor and fan blade failures inside the fan module.

[0004] However, since the fan module is usually installed on the range hood, the distance between the air inlet and the range hood is relatively short, which makes it easy for the filter to interfere with the range hood when the operator installs the filter, thus making the installation and removal of the filter difficult. Summary of the Invention

[0005] Therefore, it is necessary to provide an installation method for a range hood and its fan module, as well as the filter of the fan module, to address the problem of difficult installation and removal of the filter.

[0006] A fan module, the fan module comprising:

[0007] The housing has an air inlet and an air outlet, the air inlet including a mounting section and a shielding section arranged along a first direction;

[0008] The fan blade is rotatably disposed within the housing to cause the air entering the air inlet to be blown out from the air outlet;

[0009] A filter is installed at the air inlet, the filter comprising at least two filter screens, the filter screens being movable from the mounting section along a first direction into the shielding section.

[0010] In one embodiment, at least two filters include a first filter and a second filter, the first filter being located within the shielding section and the second filter being located within the mounting section.

[0011] In one embodiment, at least one inner wall of the air inlet extending in a first direction is provided with a groove, at least one side wall of the filter is located in the groove, and the filter can slide along the groove.

[0012] In one embodiment, the mounting section and the shielding section are spaced apart;

[0013] The slide rail includes a first slide rail section, a second slide rail section, and a third slide rail section. The first slide rail section is located on the inner wall of the shielding section, the second slide rail section is located on the inner wall of the mounting section, and the third slide rail section connects the first slide rail section and the second slide rail section.

[0014] In one embodiment, the air inlet has a first inner wall and a second inner wall disposed opposite to each other along a second direction, the first inner wall and the second inner wall extending along a first direction respectively, the first inner wall being located on the side close to the range hood module, and a groove being formed on the first inner wall.

[0015] In one embodiment, the mounting segment is provided with limiting edges at both ends along the first direction; and / or, the blocking segment is provided with limiting edges at both ends along the first direction.

[0016] In one embodiment, a handle is provided on the side of the filter screen near the second inner wall.

[0017] In one embodiment, a protective shell is provided between the mounting section and the shielding section, and a portion of the first filter extends into the protective shell.

[0018] In one embodiment, the sum of the lengths of the shielding section and the protective shell along the first direction is equal to the length of the first filter screen along the first direction, and the length of the second filter screen along the first direction is equal to the length of the mounting section along the first direction.

[0019] A range hood with a fan function, the range hood comprising:

[0020] The range hood body, wherein a check valve is installed on the range hood body; and

[0021] A fan module is mounted on the range hood body, and at least part of the check valve is located within the projection range of the shielding section along the air intake direction.

[0022] A method for installing a filter on a fan module, comprising at least two filters including a first filter and a second filter, the method comprising the following steps:

[0023] Install the first filter screen into the installation section;

[0024] Push the first filter screen along the first direction so that the first filter screen covers the area within the blocking section;

[0025] Install the second filter into the installation section.

[0026] The installation method of the aforementioned range hood, its fan module, and the filter of the fan module includes an air inlet comprising an installation section and a shielding section arranged along a first direction. The check valve shielding position is located within the shielding section, meaning the installation section is not shielded by the check valve. The filter includes at least two filter screens, i.e., the filter screens are segmented, so that the filter screen located within the shielding section can be installed into the air inlet through the installation section, and then moved from the installation section along the first direction into the shielding section. This avoids interference between the filter screen and the range hood body during filter screen installation, preventing difficulties in filter screen installation and removal. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a range hood in one embodiment.

[0028] Figure 2 This is a schematic diagram of the structure before the first filter screen is installed in one embodiment.

[0029] Figure 3 This is a schematic diagram of the structure in one embodiment where the first filter screen is installed in the installation section.

[0030] Figure 4 This is a schematic diagram of the structure of the first filter screen moving to cover the blocking section in one embodiment.

[0031] Figure 5 This is a schematic diagram of the structure before the second filter screen is installed in one embodiment.

[0032] Figure 6 This is a schematic diagram of the structure in one embodiment where the second filter screen is installed in the installation section.

[0033] Figure 7 This is a schematic diagram of the structure of a range hood after the check valve has been removed in one embodiment.

[0034] Reference numerals: 10, Fan module; 100, Housing; 110, Air inlet; 111, Mounting section; 112, Shielding section; 113, Slide groove; 1131, First slide groove section; 1132, Second slide groove section; 1133, Third slide groove section; 114, First inner wall; 115, Second inner wall; 116, Limiting edge; 120, Air outlet; 130, Protective shell; 20, Filter; 21, First filter screen; 22, Second filter screen; 23, Handle; 30, Range hood body; 31, Check valve. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0041] Combination Figure 1 A range hood with a fan function includes a fan module 10 and a range hood body 30. The fan module 10 is mounted on the range hood body 30. To reduce the overall size of the range hood with a fan function, the fan module 10 is generally integrated with the range hood body 30. Specifically, a check valve 31 is installed on the range hood body 30. The check valve 31 is mounted on the housing 100 of the range hood body 30 and has a baffle plate to prevent backflow of fumes and avoid fumes from the common flue blowing onto the range hood body 30. However, the check valve 31 partially blocks the air inlet 110, which can easily interfere with the filter 20 during installation, making the installation and removal of the filter 20 difficult.

[0042] See Figures 1-7 An embodiment of this application provides a fan module 10, which includes a housing 100, fan blades, and a filter 20. The housing 100 has an air inlet 110 and an air outlet 120. The air inlet 110 includes a mounting section 111 and a blocking section 112 disposed along a first direction OX. The fan blades are rotatably disposed within the housing 100 to allow air entering the air inlet 110 to be blown out of the air outlet 120. The filter 20 is installed in the air inlet 110 and includes at least two filter screens, which are movable from the mounting section 111 along the first direction OX into the blocking section 112.

[0043] Thus, the air inlet 110 includes an installation section 111 and a shielding section 112 arranged along the first direction OX. The shielding position of the check valve 31 is located within the shielding section 112, meaning that the installation section 111 is not shielded by the check valve 31. The filter 20 includes at least two filter screens, i.e., the filter screens are arranged in segments, so that the filter screen located in the shielding section 112 can be installed into the air inlet 110 through the installation section 111, and then moved from the installation section 111 along the first direction OX to the shielding section 112. This avoids the problem of interference between the filter screen and the check valve 31 during filter screen installation, which would otherwise cause difficulties in installing and removing the filter screen.

[0044] The number of installation sections 111 and shielding sections 112 is not limited. When the filter 20 is installed, the range hood body has multiple positions that are prone to interference with the check valve 31, so that the air inlet 110 includes multiple shielding sections 112. The multiple interference positions are all within the range of the shielding sections 112, and the other unshielded positions are the installation sections 111. Specifically, the air inlet 110 includes multiple staggered shielding sections 112 and installation sections 111. Each filter screen enters the air inlet 110 from the installation section 111 and then moves from the installation section 111 to the adjacent shielding section 112.

[0045] For example, if the range hood body has three positions that are prone to interference with the check valve 31, and the three positions are spaced apart from each other, then the air inlet 110 includes three shielding sections 112. The three interference positions are located within the range of the corresponding shielding sections 112, and the other unshielded positions are the installation sections 111.

[0046] In one embodiment of this application, at least two filters include a first filter 21 and a second filter 22, with the first filter 21 located within the shielding section 112 and the second filter 22 located within the mounting section 111.

[0047] The check valve 31 is located within the blocking section 112. When the first filter 21 is installed directly from the blocking section 112, the first filter 21 is prone to interference with the check valve 31. Combined with... Figures 2-4 The first filter 21 is inserted from the installation section 111 into the air inlet 110, and then moved from the installation section 111 to the shielding section 112, without interfering with the check valve 31. After the first filter 21 is installed, combined with... Figure 5 and Figure 6 Then, the second filter 22 is installed from the installation section 111. The second filter 22 is located directly inside the installation section 111. That is, by simply dividing the filter 20 into two filters, the problem of installation difficulty can be avoided. Secondly, since there are only two filters, the required installation time is relatively short.

[0048] Of course, in other embodiments, three, four or five filters can be set according to actual needs, and multiple filters are arranged sequentially in the air inlet 110 along the first direction OX.

[0049] In one embodiment of this application, combined with Figure 7 At least one inner wall of the air inlet 110 extending along the first direction OX is provided with a groove 113, at least one side wall of the filter screen is located in the groove 113, and the filter screen can slide along the groove 113.

[0050] The inner wall of the air inlet 110 is provided with a sliding groove 113 extending in the first direction OX. When the first filter 21 is installed in the mounting section 111, it can slide along the sliding groove 113 into the shielding section 112. The second filter 22 is directly installed in the sliding groove 113 of the mounting section 111. The sliding groove 113 is also used to limit the side walls of the first filter 21 and the second filter 22 to prevent the filter from falling out of the air inlet 110.

[0051] Furthermore, the installation section 111 and the shielding section 112 are spaced apart; the slide 113 includes a first slide section 1131, a second slide section 1132 and a third slide section 1133, the first slide section 1131 is located on the inner wall of the shielding section 112, the second slide section 1132 is located on the inner wall of the installation section 111, and the third slide section 1133 connects the first slide section 1131 and the second slide section 1132.

[0052] The housing 100 also contains two impellers, with a motor positioned between them. When the motor rotates, it drives both impellers to rotate simultaneously. The two impellers correspond to the mounting section 111 and the shielding section 112, respectively, so that each impeller has a separate air inlet 110. Since the motor is located between the two impellers, that is, also between the mounting section 111 and the shielding section 112, a protective housing 130 is provided around the motor, positioned between the mounting section 111 and the shielding section 112.

[0053] The first slide section 1131 is located on the inner wall of the shielding section 112, the second slide section 1132 is located on the inner wall of the mounting section 111, and the third slide section 1133 is set corresponding to the motor mounting position. Although there is no need to set the air inlet 110 at the position of the protective shell 130, the third slide section 1133 is also set inside the protective shell 130. The first slide section 1131 and the second slide section 1132 are connected through the third slide section 1133, so that the first filter screen 21 installed from the second slide section 1132 can slide into the first slide section 1131 through the third slide section 1133.

[0054] In one embodiment of this application, the air inlet 110 has a first inner wall 114 and a second inner wall 115 disposed opposite to each other along the second direction OY. The first inner wall 114 and the second inner wall 115 extend along the first direction OX, respectively. The first inner wall 114 is located on the side close to the range hood body 30, and a groove 113 is provided on the first inner wall 114.

[0055] Thus, the first inner wall 114 is located on the side closer to the range hood body 30, meaning the second inner wall 115 is farther away from the range hood relative to the first inner wall 114. Specifically, the first inner wall 114 and the second inner wall 115 are arranged along the second direction OY, which is perpendicular to the first direction OX. The second inner wall 115 is farther away from the range hood body 30 relative to the first inner wall 114. When installing the first filter 21, the filter can first be pushed from the second inner wall 115 to the first inner wall 114 along the second direction OY until one end of the filter extends into the groove 113 of the installation section 111. Then, the filter is pushed along the first direction OX so that the first filter 21 slides into the shielding section 112 along the groove 113.

[0056] The second inner wall 115 is farther away from the range hood relative to the first inner wall 114, meaning it is located closer to the outside space. Installing the filter from the second inner wall 115 side will not interfere with the range hood, facilitating filter installation. The first inner wall 114 has a sliding groove 113, while the second inner wall 115 does not. This allows the operator to easily move the filter along the second direction OY from the first inner wall 114 to the second inner wall 115 when removing it, thus allowing the filter to exit the sliding groove 113 for easy removal.

[0057] Furthermore, the mounting section 111 is provided with limiting edges 116 at both ends along the first direction OX; and / or, the blocking section 112 is provided with limiting edges 116 at both ends along the first direction OX.

[0058] This embodiment can be understood as follows: the mounting segment 111 is provided with limiting edges 116 at both ends along the first direction OX; or the blocking segment 112 is provided with limiting edges 116 at both ends along the first direction OX; or the mounting segment 111 is provided with limiting edges 116 at both ends along the first direction OX, and the blocking segment 112 is provided with limiting edges 116 at both ends along the first direction OX.

[0059] Specifically, the first filter screen 21 and the second filter screen 22 are rectangular structures. The first filter screen 21 and the second filter screen 22 each have two oppositely arranged long sides and two oppositely arranged short sides connected in sequence. The long sides extend along the first direction OX, and the short sides extend along the second direction OY. When the first filter screen 21 is installed in the blocking section 112, the two short sides of the blocking section 112 can be blocked by the limiting edges 116 at both ends of the blocking section 112 along the first direction OX. At the same time, one long side of the first filter screen 21 extends into the sliding groove 113 on the first inner wall 114 of the blocking section 112. That is, the first filter screen 21 is limited by three sides to prevent the first filter screen 21 from falling out of the blocking section 112. Similarly, when the second filter 22 is installed in the mounting section 111, the limiting edges 116 at both ends of the mounting section 111 along the first direction OX can block the two short sides of the mounting section 111. At the same time, one long side of the second filter 22 extends into the sliding groove 113 on the first inner wall 114 of the mounting section 111. That is, the second filter 22 is limited by three sides to prevent the second filter 22 from falling out of the mounting section 111.

[0060] It should be noted that the protective shell 130 serves as a limiting edge for the end of the mounting section 111 near the shielding section 112, and also as a limiting edge for the end of the shielding section 112 near the mounting section 111. That is, when the first filter screen 21 is installed, one end of the first filter screen 21 extends into the protective shell 130; when the second filter screen 22 is installed, one end of the second filter screen 22 extends into the protective shell 130, so that the protective shell 130 can limit the first filter screen 21 and the second filter screen 22 respectively.

[0061] Furthermore, a handle 23 is provided on the side of the filter screen near the second inner wall 115.

[0062] Specifically, in this application example, a handle 23 may be provided on the side of the first filter screen 21 near the second inner wall 115; or a handle 23 may be provided on the side of the second filter screen 22 near the second inner wall 115; or a handle 23 may be provided on the side of the first filter screen 21 and the second filter screen 22 near the second inner wall 115 respectively.

[0063] For example, a handle 23 is provided on the side of the first filter screen 21 near the second inner wall 115. When installing the first filter screen 21, the first filter screen 21 is inserted into the mounting section 111 along the second direction OY, and the first filter screen 21 is inserted into the sliding groove 113. Then, the handle 23 is used to push the first filter screen 21 to move along the first direction OX, so that the first filter screen 21 is installed into the blocking section 112. When removing the first filter screen 21, the handle 23 on the first filter screen 21 is dragged, so that the first filter screen 21 moves along the first direction OX to the mounting section 111, and then the handle 23 is pulled to remove the first filter screen 21 from the mounting section 111. As another example, a handle 23 is provided on the side of the second inner wall 115 of the second filter screen 22. When removing the second filter screen 22, the handle 23 on the second filter screen 22 is pulled directly to remove the second filter screen 22 from the mounting section 111.

[0064] Specifically, the second inner wall 115 of the installation section 111 is provided with an inclined surface, which makes it easier for the filter screen to slide into the installation section 111 from the inclined surface of the second inner wall 115, thereby improving the installation efficiency.

[0065] In some embodiments of this application, a protective shell 130 is provided between the mounting section 111 and the shielding section 112, and a portion of the first filter screen 21 extends into the protective shell 130.

[0066] Thus, two impellers are also provided inside the housing 100, and a motor is installed between the two impellers. When the motor rotates, it drives the two impellers to rotate simultaneously. The mounting section 111 is the air inlet 110 of one impeller, the shielding section 112 is the air inlet 110 of the other impeller, and the protective housing 130 is used to protect the motor.

[0067] When installing the first filter 21, it needs to enter from the installation section 111, then pass through the protective shell 130, and extend into the blocking section 112. Part of the first filter 21 extends into the protective shell 130. On one hand, the protective shell 130 can act as a limiting edge 116 at one end of the blocking section 112 along the first direction OX, limiting the first filter 21 and preventing it from falling out of the blocking section 112. On the other hand, when the first filter 21 moves towards the blocking section 112 along the first direction OX, it facilitates the operator's fingers to reach into the protective shell 130 and push the first filter 21 into place.

[0068] Specifically, the third slide 113 is located inside the protective shell 130 and is used to allow the first filter screen 21 to slide from the second slide section 1132 through the third slide section 1133 to the first slide section 1131.

[0069] Furthermore, the sum of the lengths of the shielding section 112 and the protective shell 130 along the first direction OX is equal to the length of the first filter screen 21 along the first direction OX, and the length of the second filter screen 22 along the first direction OX is equal to the length of the mounting section 111 along the first direction OX.

[0070] When installing the first filter 21, the operator inserts it into one side of the mounting section 111 along the second direction OY, and then pushes it along the first direction OX. When the end of the first filter 21 closest to the mounting section 111 is flush with the protective shell 130, it indicates that the first filter 21 is properly installed. This ensures that the sum of the lengths of the shielding section 112 and the protective shell 130 along the first direction OX equals the length of the first filter 21 along the first direction OX. This facilitates the operator's judgment of whether the first filter 21 is properly installed and prevents difficulties when the operator inserts their fingers into the protective shell 130 to push the first filter 21. After the first filter 21 is installed, the second filter 22 is directly inserted into the mounting section 111 along the second direction OY. The length of the second filter 22 along the first direction OX is directly the same as the length of the mounting section 111 along the first direction OX, eliminating the need to push the second filter 22 along the first direction OX, making installation convenient.

[0071] In some embodiments, the length of the first filter 21 along the first direction OX is less than or equal to the length of the mounting section 111 along the first direction OX. Taking the example where the length of the first filter 21 along the first direction OX is equal to the length of the mounting section 111 along the first direction OX, during installation, the first filter 21 is directly installed onto the mounting section 111 along the second direction OY, and then the first filter 21 is pushed along the first direction OX so that the first filter 21 slides into the blocking section 112, thereby making the installation of the first filter 21 convenient.

[0072] In some other embodiments, the length of the first filter screen 21 along the first direction OX is greater than the length of the mounting section 111 along the first direction OX. When installing the first filter screen 21, it is necessary to make the first filter screen 21 bend appropriately so that the first filter screen 21 is installed into the air inlet 110.

[0073] Furthermore, to prevent bending of the first filter 21 during installation, the first filter 21 can be further divided into a first filter section and a second filter section. The first filter section and the second filter section are connected by snap-fit. When installing the first filter 21, firstly, insert the first filter section into the installation section 111 along the second direction OY. Then, push the first filter section along the first direction OX until the first filter section partially passes through the protective shell. Next, insert the second filter section into the installation section 111 along the second direction OY. Then, push the first filter section along the first direction OX using the second filter section until both the first filter section and the second filter section are installed in place. Finally, directly insert the second filter 22 into the installation section 111 along the second direction OY.

[0074] Furthermore, the first filter section and the second filter section are connected by snap-fit. After the first filter section is installed, the second filter section is installed. Then, after the first filter section and the second filter section are connected by snap-fit, the first filter section and the second filter section are moved along the first direction OX until they are in place. Then, the second filter screen 22 is installed.

[0075] An embodiment of this application also discloses a range hood with a fan function. The range hood includes a range hood body 30 and a fan module 10. A check valve 31 is provided on the range hood body 30. The fan module 10 is installed on the range hood body 30. Along the projection of the air intake direction, at least part of the check valve 31 is located within the projection range of the shielding section 112.

[0076] Thus, when the filter 20 is installed directly into the air inlet 110, the check valve 31 interferes with the filter 20. In this embodiment, the filter 20 includes at least two filter screens. The air inlet 110 includes an installation section 111 and a shielding section 112. The check valve 31 affects the installation of the filter 20 in the shielding section 112, but has no effect on the installation section 111. Therefore, each filter screen is installed from the installation section 111 into the air inlet 110, and then some of the filter screens are moved from the installation section 111 to the shielding section 112, thereby realizing the installation of the filter 20.

[0077] An embodiment of this application also discloses a method for installing a filter 20 of a fan module 10, wherein at least two filters include a first filter 21 and a second filter 22, and the installation method includes the following steps:

[0078] Install the first filter screen 21 into the installation section 111;

[0079] The first filter screen 21 is pushed along the first direction OX so that the first filter screen 21 covers the shielding section 112;

[0080] Install the second filter 22 into the installation section 111.

[0081] This configuration ensures that each filter can be installed through the installation section 111, avoiding interference between the range hood body and the filter during installation, which would make the filter difficult to install. Once the filter is installed into the air inlet 110, the filter is moved along the first direction OX to ensure that each filter is in its corresponding position.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fan module, installed on the body of a range hood; characterized in that, The fan module includes: The housing has an air inlet and an air outlet, the air inlet including an installation section and a shielding section spaced apart along a first direction; along the projection of the air inlet direction, at least a portion of the check valve on the range hood body is located within the projection range of the shielding section, and the installation section is not shielded by the check valve. The fan blade is rotatably disposed within the housing to cause the air entering the air inlet to be blown out from the air outlet; A filter is installed at the air inlet. The filter includes at least two filter screens, including a first filter screen and a second filter screen. The first filter screen is located within the shielding section, and the second filter screen is located within the mounting section. The first filter screen located within the shielding section is movable from the mounting section along a first direction into the shielding section.

2. The fan module according to claim 1, characterized in that, At least one inner wall of the air inlet extending in a first direction is provided with a groove, at least one side wall of the filter is located in the groove, and the filter can slide along the groove.

3. The fan module according to claim 2, characterized in that, The slide rail includes a first slide rail section, a second slide rail section, and a third slide rail section. The first slide rail section is located on the inner wall of the shielding section, the second slide rail section is located on the inner wall of the mounting section, and the third slide rail section connects the first slide rail section and the second slide rail section.

4. The fan module according to claim 2, characterized in that, The air inlet has a first inner wall and a second inner wall arranged opposite to each other along a second direction. The first inner wall and the second inner wall extend along a first direction respectively. The first inner wall is located on the side close to the range hood module, and a sliding groove is provided on the first inner wall.

5. The fan module according to claim 4, characterized in that, The mounting section is provided with limiting edges at both ends along the first direction; and / or, the blocking section is provided with limiting edges at both ends along the first direction.

6. The fan module according to claim 4, characterized in that, A handle is provided on the side of the second filter screen near the second inner wall.

7. The fan module according to claim 1, characterized in that, A protective shell is provided between the installation section and the shielding section, and a portion of the first filter screen extends into the protective shell.

8. The fan module according to claim 7, characterized in that, The sum of the lengths of the shielding section and the protective shell along the first direction is equal to the length of the first filter screen along the first direction, and the length of the second filter screen along the first direction is equal to the length of the mounting section along the first direction.

9. A range hood, characterized in that, The range hood includes: The range hood body, wherein a check valve is installed on the range hood body; and The fan module according to any one of claims 1-8, wherein the fan module is mounted on the range hood body, and at least a portion of the check valve is located within the projection range of the shielding section along the air intake direction.

10. A method for installing a filter for a fan module as described in any one of claims 1-8, wherein at least two filter screens include a first filter screen and a second filter screen, characterized in that, The installation method includes the following steps: Install the first filter screen into the installation section; Push the first filter screen along the first direction so that the first filter screen covers the area within the blocking section; Install the second filter into the installation section.

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