Range hood and fan module thereof, and installation method of filter of fan module

Abstract

The invention relates to a range hood, a fan module of the range hood and a mounting method of a filter of the fan module. The fan module comprises a shell, fan blades and a filter. The shell is provided with an air inlet and an air outlet, and the air inlet comprises a mounting section and a shielding section which are arranged in the first direction; the fan blades are rotationally arranged in the shell and used for enabling air entering the air inlet to be blown out of the air outlet. The filter is mounted at the air inlet and comprises at least two filter screens, and the filter screens can move into the shielding section from the mounting section in the first direction. According to the check valve, the filter screen is arranged in a segmented mode, so that the filter screen located in the shielding section can be installed in the air inlet through the installation section and then moves into the shielding section from the installation section in the first direction, and the problem that when the filter screen is installed, the filter screen interferes with the check valve, and consequently the filter screen is difficult to install and disassemble can be avoided.

Description

Technical Field

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

[0002] The range hood body with a fan module includes a fan module and a range hood module. The main function of the range hood module is to absorb oil smoke, and the main function of the fan module is to accelerate the air circulation in the kitchen to cool down. Since the range hood body needs to be used in a high-oil and high-salt environment in the kitchen, the oil smoke content in the air entering the fan module is high, which can easily cause the motor and fan blades inside the fan module to malfunction.

[0003] In the related art, a filter is generally installed at the air inlet to filter the air entering the fan module to reduce the malfunction of the motor and the fan blades inside the fan module.

[0004] However, since the fan module is generally installed on the range hood, the distance between the air inlet and the range hood is relatively short, which causes the filter to easily interfere with the range hood when the operator installs the filter, thereby making the installation and removal of the filter difficult. Summary of the invention

[0005] Based on this, it is necessary to provide a range hood and a fan module thereof, and a method for installing a filter of the fan module to address the problem of difficulty in installing and removing the filter.

[0006] A fan module, comprising:

[0007] A housing having an air inlet and an air outlet, wherein the air inlet comprises a mounting section and a shielding section arranged along a first direction;

[0008] A fan blade is rotatably disposed in the housing and is used to allow the air entering the air inlet to be blown out from the air outlet;

[0009] A filter is installed at the air inlet, and the filter includes at least two filter screens, and the filter screens can be moved from the installation section to the shielding section along a first direction.

[0010] In one embodiment, the at least two filter screens include a first filter screen and a second filter screen, the first filter screen is located in the shielding section, and the second filter screen is located in the installation section.

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

[0012] In one of the embodiments, the installation section and the shielding section are arranged at intervals;

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

[0014] In one embodiment, 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 the first direction respectively, the first inner wall is located on a side close to the range hood module, and a slide groove is provided on the first inner wall.

[0015] In one of the embodiments, two ends of the installation section along the first direction are respectively provided with limited edges; and / or two ends of the shielding section along the first direction are respectively provided with limited edges.

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

[0017] In one of the embodiments, 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.

[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 along the first direction, and the length of the second filter along the first direction is equal to the length of the installation section along the first direction.

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

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

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

[0022] A method for installing a filter of a fan module, wherein at least two filter screens include a first filter screen and a second filter screen, and the installation method includes the following steps:

[0023] Installing the first filter into the installation section;

[0024] Pushing the first filter screen along a first direction so that the first filter screen covers the shielding section;

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

[0026] In the range hood and its fan module, and the installation method of the filter of the fan module, the air inlet includes an installation section and a shielding section arranged along a first direction, and the shielding position of the check valve is located in the shielding section, that is, the installation section is not blocked by the check valve. The filter includes at least two filter nets, that is, the filter nets are arranged in sections, so that the filter nets located in the shielding section can be installed in the air inlet through the installation section, and then moved from the installation section to the shielding section along the first direction, so as to avoid the problem that when installing the filter net, the filter net interferes with the range hood body, resulting in difficulty in installing and removing the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG. 1 is a schematic structural diagram of a range hood in one embodiment.

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

[0029] FIG. 3 is a schematic structural diagram of a first filter screen installed in an installation section in an embodiment.

[0030] FIG. 4 is a schematic diagram of the structure in which the first filter screen moves to cover the shielding section in one embodiment.

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

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

[0033] FIG. 7 is a schematic diagram of the structure of a range hood without a check valve in one embodiment.

[0034] Figure numerals: 10, fan module; 100, shell; 110, air inlet; 111, installation 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 net; 22, second filter net; 23, handle; 30, range hood body; 31, check valve. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] In conjunction with FIG1 , the 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. In order to reduce the volume of the entire range hood with a fan function, the fan module 10 and the range hood body 30 generally need to be integrated. Specifically, a check valve 31 is mounted on the range hood body 30. The check valve 31 is mounted on the housing 100 of the range hood body 30. The check valve 31 is mounted with a baffle to prevent oil smoke from flowing back and to prevent oil smoke from the public flue from blowing onto the range hood body 30. However, the check valve 31 blocks part of the air inlet 110, and the filter 20 is easily interfered with by the check valve 31 when being installed, making it difficult to install and remove the filter 20.

[0042] Referring to Fig. 1 to Fig. 7, a fan module 10 provided in an embodiment of the present application includes a housing 100, a fan blade, and a filter 20. The housing 100 has an air inlet 110 and an air outlet 120, and the air inlet 110 includes a mounting section 111 and a shielding section 112 arranged along a first direction OX; the fan blade is rotatably arranged in the housing 100, so that the air entering the air inlet 110 is blown out from the air outlet 120; the filter 20 is installed in the air inlet 110, and the filter 20 includes at least two filter screens, and the filter screens can be moved from the mounting section 111 to the shielding section 112 along the first direction OX.

[0043] In this way, the air inlet 110 includes a mounting section 111 and a shielding section 112 arranged along the first direction OX, and the shielding position of the check valve 31 is located in the shielding section 112, that is, the mounting section 111 is not shielded by the check valve 31. The filter 20 includes at least two filter nets, that is, the filter nets are arranged in sections, so that the filter net located in the shielding section 112 can be installed in the air inlet 110 through the mounting section 111, and then moved from the mounting section 111 along the first direction OX to the shielding section 112, so as to avoid the problem that when installing the filter net, the filter net interferes with the check valve 31, resulting in difficulty in installing and removing the filter net.

[0044] There is no limit to the number of the installation sections 111 and the shielding sections 112. When the filter 20 is installed, there are multiple positions on the range hood body that are easy to interfere with the check valve 31, so that the air inlet 110 includes multiple shielding sections 112, and the multiple interference positions are all located within the range of the shielding sections 112, and the other unblocked positions are respectively the installation sections 111. Specifically, the air inlet 110 includes multiple staggered shielding sections 112 and installation sections 111, and 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, the range hood body has three positions that are likely to interfere with the check valve 31, and the three positions are spaced apart from each other, then the air inlet 110 includes three blocking sections 112, the three interference positions are respectively located within the range of the corresponding blocking sections 112, and the other unblocked positions are the installation sections 111.

[0046] In an embodiment of the present application, the at least two filter screens include a first filter screen 21 and a second filter screen 22 . The first filter screen 21 is located in the shielding section 112 , and the second filter screen 22 is located in the installation section 111 .

[0047] The blocking position of the check valve 31 is located in the blocking section 112. When the first filter 21 is installed directly from the blocking section 112, the first filter 21 is likely to interfere with the check valve 31. In conjunction with Figures 2 to 4, the first filter 21 is loaded from the installation section 111 into the air inlet 110, and then moved from the installation section 111 to the blocking section 112, and will not interfere with the check valve 31. After the first filter 21 is installed, in conjunction with Figures 5 and 6, the second filter 22 is installed from the installation section 111, and the second filter 22 is directly located in the installation section 111. That is, only by dividing the filter 20 into two filter screens, the problem of difficult installation can be avoided. Secondly, the number of filter screens is two, and the required installation time is relatively short.

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

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

[0050] A slide groove 113 extending along the first direction OX is provided on the inner wall of the air inlet 110. When the first filter 21 is installed in the mounting section 111, it can slide along the slide groove 113 into the shielding section 112; the second filter 22 is directly installed in the slide groove 113 of the mounting section 111, and the slide 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 mounting section 111 and the shielding section 112 are spaced apart; the slide groove 113 includes a first slide groove section 1131, a second slide groove section 1132 and a third slide groove section 1133, the first slide groove section 1131 is located on the inner wall of the shielding section 112, the second slide groove section 1132 is located on the inner wall of the mounting section 111, and the third slide groove section 1133 connects the first slide groove section 1131 with the second slide groove section 1132.

[0052] Two impellers are also arranged in the housing 100, and a motor is arranged between the two impellers. When the motor rotates, it is used to drive the two 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 shell 130 is arranged outside the motor, and the protective shell 130 is located between the mounting section 111 and the shielding section 112.

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

[0054] In one embodiment of the present application, the air inlet 110 has a first inner wall 114 and a second inner wall 115 which are relatively arranged 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 a side close to the range hood body 30. A slide groove 113 is opened on the first inner wall 114.

[0055] In this way, the first inner wall 114 is located on a side close to the range hood body 30, that is, the second inner wall 115 is 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, the second direction OY is perpendicular to the first direction OX, and the second inner wall 115 is away from the range hood body 30 relative to the first inner wall 114. When installing the first filter 21, the filter can be first pushed along the second direction OY from the second inner wall 115 to the first inner wall 114 until one end of the filter is inserted into the slide groove 113 of the installation section 111, and then the filter is pushed along the first direction OX, so that the first filter 21 slides along the slide groove 113 into the shielding section 112.

[0056] The second inner wall 115 is away from the range hood relative to the first inner wall 114, that is, the second inner wall 115 is located on the side close to the external space, and when the filter is installed from one side of the second inner wall 115, it will not interfere with the range hood, which is convenient for the installation of the filter. The first inner wall 114 is provided with a slide groove 113, and the second inner wall 115 is not provided with a slide groove 113, so that when the filter is removed, the operator moves the filter along the second direction OY from the first inner wall 114 to the second inner wall 115, so that the filter is withdrawn from the slide groove 113, which is convenient for removal.

[0057] Further, two ends of the installation segment 111 along the first direction OX are respectively provided with limited edges 116 ; and / or two ends of the shielding segment 112 along the first direction OX are respectively provided with limited edges 116 .

[0058] This embodiment can be understood as: limited edges 116 are respectively provided at both ends of the installation segment 111 along the first direction OX; or limited edges 116 are respectively provided at both ends of the shielding segment 112 along the first direction OX; or limited edges 116 are respectively provided at both ends of the installation segment 111 along the first direction OX, and limited edges 116 are respectively provided at both ends of the shielding segment 112 along the first direction OX.

[0059] Specifically, the first filter screen 21 and the second filter screen 22 are rectangular structures, and the first filter screen 21 and the second filter screen 22 respectively have two long sides and two 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 shielding section 112, the two short sides of the shielding section 112 can be shielded by the limiting edges 116 at both ends of the shielding section 112 along the first direction OX, and at the same time, one long side of the first filter screen 21 extends into the slide groove 113 on the first inner wall 114 of the shielding section 112, that is, the first filter screen 21 is limited by three sides to prevent the first filter screen 21 from slipping out of the shielding section 112. Similarly, when the second filter 22 is installed on the mounting section 111, the two short sides of the mounting section 111 can be blocked by the limiting edges 116 at both ends of the mounting section 111 along the first direction OX, and at the same time, one long side of the second filter 22 extends into the slide groove 113 on the first inner wall 114 of the mounting section 111, that is, the second filter 22 is limited by three sides respectively to prevent the second filter 22 from slipping out of the mounting section 111.

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

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

[0062] Specifically, the present application example can be understood as a handle 23 being provided on the side of the first filter 21 close to the second inner wall 115; or a handle 23 being provided on the side of the second filter 22 close to the second inner wall 115; or a handle 23 being provided on the side of the first filter 21 and the side of the second filter 22 close to the second inner wall 115 respectively;

[0063] For example, a handle 23 is provided on one side of the first filter 21 close to the second inner wall 115. When installing the first filter 21, the first filter 21 is extended into the installation section 111 along the second direction OY, and the first filter 21 is extended into the slide groove 113, and then the first filter 21 is pushed to move along the first direction OX by the handle 23, so that the first filter 21 is installed in the shielding section 112. When removing the first filter 21, the handle 23 on the first filter 21 is dragged, so that the first filter 21 is moved to the installation section 111 along the first direction OX, and then the handle 23 is pulled to make the first filter 21 withdraw from the installation section 111. For another example, a handle 23 is provided on one side of the second inner wall 115 of the second filter 22. When removing the second filter 22, the handle 23 on the second filter 22 is directly pulled by hand, so that the second filter 22 is removed from the installation section 111.

[0064] Specifically, the second inner wall 115 of the installation section 111 is provided with an inclined surface, so that the filter screen can slide from the inclined surface on the second inner wall 115 into the installation section 111, thereby improving installation efficiency.

[0065] In some embodiments of the present application, a protective shell 130 is disposed between the installation 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 further arranged in the housing 100, and a motor is arranged between the two impellers. When the motor rotates, it is used to drive the two impellers to rotate simultaneously. The mounting section 111 is the air inlet 110 of one of the impellers, the shielding section 112 is the air inlet 110 of the other impeller, and the protective shell 130 is used to protect the motor.

[0067] When installing the first filter 21, it is necessary to allow the first filter 21 to enter from the installation section 111, and then pass through the protective shell 130 to extend into the shielding section 112. Part of the first filter 21 extends into the protective shell 130. On the one hand, the protective shell 130 can serve as a limiting edge 116 at one end of the shielding section 112 along the first direction OX, which is used to limit the first filter 21 and prevent the first filter 21 from slipping out of the shielding section 112; on the other hand, when the first filter 21 moves toward one end of the shielding section 112 along the first direction OX, it is convenient for the operator to insert his fingers into the protective shell 130 to push the first filter 21 into place.

[0068] Specifically, the third slide groove 113 is located in the protective shell 130 , and is used to allow the first filter screen 21 to slide from the second slide groove section 1132 through the third slide groove section 1133 to the first slide groove 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 21 along the first direction OX, and the length of the second filter 22 along the first direction OX is equal to the length of the installation section 111 along the first direction OX.

[0070] When installing the first filter 21, the operator inserts the first filter 21 into one side of the installation section 111 along the second direction OY, and then pushes the first filter 21 along the first direction OX. When the end of the first filter 21 close to the installation section 111 is flush with the protective shell 130, it means that the first filter 21 is installed in place. That is, by making the sum of the lengths of the shielding section 112 and the protective shell 130 along the first direction OX equal to the length of the first filter 21 along the first direction OX, on the one hand, it is convenient for the operator to judge whether the first filter 21 is installed in place, and on the other hand, it prevents the operator from inserting his fingers into the protective shell 130 to push the first filter 21. After the first filter 21 is installed, the second filter 22 can be directly inserted into the installation 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 installation section 111 along the first direction OX, that is, there is no need to push the second filter 22 along the first direction OX, which is convenient for installation.

[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 installation section 111 along the first direction OX. For example, the length of the first filter 21 along the first direction OX is equal to the length of the installation section 111 along the first direction OX. During installation, the first filter 21 is directly installed to the installation 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 shielding section 112, thereby facilitating the installation of the first filter 21.

[0072] In some other embodiments, the length of the first filter 21 along the first direction OX is greater than the length of the installation section 111 along the first direction OX. When installing the first filter 21, the first filter 21 needs to be bent appropriately so that the first filter 21 can be installed in the air inlet 110.

[0073] Furthermore, in order to prevent the need to bend the first filter 21 when installing the first filter 21, the first filter 21 can also be split into a first filter segment and a second filter segment. The first filter segment and the second filter segment are connected by a snap. When installing the first filter 21, first insert the first filter segment into the installation segment 111 along the second direction OY, then push the first filter segment along the first direction OX until the first filter segment partially passes through the protective shell; then insert the second filter segment into the installation segment 111 along the second direction OY, and then push the first filter segment along the first direction OX through the second filter segment until the first filter segment and the second filter segment are both installed in place, and finally directly insert the second filter 22 into the installation segment 111 along the second direction OY.

[0074] Furthermore, the first filter segment and the second filter segment are connected by a snap buckle. After the first filter segment is installed, the second filter segment is installed. Then, after the first filter segment and the second filter segment are connected by the snap buckle, the first filter segment and the second filter segment are connected along the first direction OX until both are installed in place, and then the second filter net 22 is installed.

[0075] An embodiment of the present application also discloses a range hood with a fan function, the range hood comprising a range hood body 30 and a fan module 10, and a check valve 31 is arranged on the range hood body 30; the fan module 10 is installed on the range hood body 30, and along the projection of the air inlet direction, at least part of the check valve 31 is located within the projection range of the shielding section 112.

[0076] In this way, when the filter 20 is directly installed 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, and 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 part of the filter screen is moved from the installation section 111 to the shielding section 112, thereby realizing the installation of the filter 20.

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

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

[0079] Push the first filter 21 along the first direction OX so that the first filter 21 covers the shielding section 112;

[0080] The second filter screen 22 is installed in the installation section 111 .

[0081] Such an arrangement enables each filter to be installed from the installation section 111, avoiding interference between the range hood body and the filter when installing the filter, resulting in difficulty in installing the filter. When the filter is installed into the air inlet 110, the filter is moved along the first direction OX so that each filter is positioned in a corresponding position.

[0082] 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.

[0083] 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 housing having an air inlet and an air outlet, wherein the air inlet comprises a mounting section and a shielding section arranged along a first direction; A fan blade is rotatably disposed in the housing and is used to allow the air entering the air inlet to be blown out from the air outlet; A filter is installed at the air inlet, and the filter includes at least two filter screens, and the filter screens can be moved from the installation section to the shielding section along a first direction.

2. The fan module according to claim 1, characterized in that: The at least two filter screens include a first filter screen and a second filter screen, wherein the first filter screen is located in the shielding section, and the second filter screen is located in the installation section.

3. The fan module according to claim 1, characterized in that: A slide groove is provided on at least one inner wall of the air inlet extending along the first direction, at least one side wall of the filter screen is located in the slide groove, and the filter screen can slide along the slide groove.

4. The fan module according to claim 3, characterized in that: The installation section and the shielding section are arranged at intervals; The slide groove includes a first slide groove section, a second slide groove section and a third slide groove section. The first slide groove section is located on the inner wall of the shielding section, the second slide groove section is located on the inner wall of the installation section, and the third slide groove section connects the first slide groove section with the second slide groove section.

5. The fan module according to claim 3, characterized in that: The air inlet has a first inner wall and a second inner wall which are arranged opposite to each other along the second direction. The first inner wall and the second inner wall extend along the first direction respectively. The first inner wall is located on a side close to the range hood module. A sliding groove is provided on the first inner wall.

6. The fan module according to claim 5, characterized in that: The two ends of the installation section along the first direction are respectively provided with limited edges; and / or the two ends of the shielding section along the first direction are respectively provided with limited edges.

7. The fan module according to claim 5, characterized in that: A handle is arranged on one side of the filter screen close to the second inner wall.

8. The fan module according to claim 2, characterized in that: A protective shell is arranged between the installation section and the shielding section, and a portion of the first filter screen extends into the protective shell.

9. The fan module according to claim 8, 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 along the first direction, and the length of the second filter along the first direction is equal to the length of the installation section along the first direction.

10. A range hood, characterized in that: The range hood comprises: a range hood body, wherein a check valve is provided on the range hood body; and The fan module according to any one of claims 1 to 9 is mounted on the range hood body, and along the projection of the air inlet direction, at least part of the check valve is located within the projection range of the shielding section.

11. A method for installing a filter of a fan module according to any one of claims 1 to 9, wherein the at least two filter screens include a first filter screen and a second filter screen, characterized in that: The installation method comprises the following steps: Installing the first filter into the installation section; Pushing the first filter screen along a first direction so that the first filter screen covers the shielding section; Install the second filter screen into the installation section.

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