Fan assembly and range hood

Abstract

The utility model relates to the technical field of kitchen appliances, and discloses a fan assembly and a range hood. The fan assembly comprises a main machine box body and a centrifugal fan arranged in the main machine box body, the centrifugal fan is connected with a box body top plate of the main machine box body, a fixing piece is arranged on the inner side of a box body side plate of the main machine box body, and the centrifugal fan is connected with the fixing piece through a fastening piece. The top of the centrifugal fan is connected with the box body top plate of the main machine box body so as to balance the gravity of the centrifugal fan, and the fasteners do not need to be directly connected with the box body side plates, so that the risk of oil stain leakage due to the fact that holes are formed in the box body side plates is avoided, the anxiety of a user to sanitation dead angles is reduced, and the use experience of the user is improved; the fastening piece cannot be exposed out of the main machine box body, the outer surface of the main machine box body is flat and smooth, the appearance delicacy of the main machine box body is improved, the product competitiveness of the range hood is enhanced, a decorative plate does not need to be arranged outside the main machine box body to cover the end parts of the screws, and the assembly difficulty and the manufacturing cost of the range hood are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a fan assembly and a range hood. Background Art

[0002] Frying, stir-frying and other cooking processes will produce fumes in the kitchen, affecting the user's cooking experience and health. As an important tool for improving the indoor environment of the kitchen, the range hood can purify the indoor air by absorbing and exhausting the fumes inside the kitchen, making it an important household appliance that is indispensable for daily home use. The fan assembly is the core component of the range hood, which usually includes a main housing and a centrifugal fan installed in the main housing. When the range hood is in use, the centrifugal fan quickly absorbs the fumes generated during the cooking process in the kitchen and exhausts them outside the house to prevent the fumes from spreading.

[0003] The fan of the existing fan assembly is mostly fixedly connected to the mainframe box by screws, which requires opening a screw hole in the mainframe box. The end of the screw passes through the screw hole and is exposed outside the mainframe box, which affects the appearance of the range hood and reduces the product's competitiveness. Oil stains will accumulate in the range hood during long-term use, and the screw holes of the mainframe box may leak oil stains, which easily makes users feel anxious about the sanitary blind spots, affecting the user experience. Utility Model Content

[0004] Based on the above problems, the purpose of the utility model is to provide a fan assembly and a range hood that can avoid the risk of oil leakage caused by opening holes in the main housing, improve the refinement of the appearance, enhance product competitiveness, reduce users' anxiety about sanitary blind spots, and improve users' experience.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] In the first aspect, the utility model provides a fan assembly, including a main housing and a centrifugal fan arranged in the main housing, the centrifugal fan is connected to the top plate of the main housing, the inner side of the side plate of the main housing is provided with a fixing part, and the centrifugal fan is connected to the fixing part via a fastener.

[0007] As an optional solution of the fan assembly provided by the utility model, the fixing member is welded to the side panel of the box body; or, the fixing member is bonded to the side panel of the box body; or, the fixing member is integrally formed with the side panel of the box body.

[0008] As an optional solution of the fan assembly provided by the utility model, the fixing member is provided with a mounting boss, the mounting boss is provided with a connecting hole, and the end of the fastener extends into the connecting hole.

[0009] As an optional solution of the fan assembly provided by the utility model, a mounting bracket is provided on the centrifugal fan, and the mounting bracket is connected to the fixing member through the fastener.

[0010] As an optional solution of the fan assembly provided by the utility model, the mounting bracket includes a mounting plate and a mounting arm arranged on the mounting plate, the mounting arm is connected to the centrifugal fan, and the mounting plate is connected to the fixing member through the fastener.

[0011] As an optional solution of the fan assembly provided by the utility model, the mounting arm is connected to the volute enclosure of the centrifugal fan.

[0012] As an optional solution of the fan assembly provided by the utility model, the mounting arm is connected to a volute side plate of the centrifugal fan.

[0013] As an optional solution of the fan assembly provided by the utility model, two of the mounting arms and two of the volute side plates are provided, and the two mounting arms are connected to the two volute side plates in a one-to-one correspondence.

[0014] As an optional solution of the fan assembly provided by the utility model, the volute enclosure of the centrifugal fan is provided with a noise reduction plate, and the two mounting arms are respectively located on both sides of the noise reduction plate.

[0015] In a second aspect, the utility model further provides a range hood, comprising a smoke collecting assembly and the above-mentioned fan assembly.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a fan assembly and a range hood, in which a centrifugal fan is suspended inside a main engine case, and a top of the centrifugal fan is connected to a top plate of the main engine case to balance the gravity of the centrifugal fan. To prevent the centrifugal fan from shaking, a fixing is arranged on an inner side of a side plate of the main engine case, and the centrifugal fan is connected to the fixing by a fastener, and the fastener does not need to be directly connected to the side plate of the case, thus avoiding the risk of oil leakage due to holes in the side plate of the case, reducing the user's anxiety about sanitary dead corners, and improving the user's experience. The fastener will not be exposed outside the main engine case, and the outer surface of the main engine case is flat and smooth, which improves the refinement of the appearance of the main engine case and enhances the product competitiveness of the range hood. There is no need to configure a decorative panel outside the main engine case to cover the ends of the screws, thus reducing the assembly difficulty and manufacturing cost of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of a fan assembly provided by a specific embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a mainframe box and a fixing member provided in a specific embodiment of the utility model;

[0021] Figure 3 It is an exploded schematic diagram of a mainframe box and a fixing member provided in a specific embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a centrifugal fan and a mounting bracket provided in a specific embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of a centrifugal fan and a mounting bracket provided in a specific embodiment of the utility model, wherein the centrifugal fan is provided with a noise reduction plate;

[0024] Figure 6 It is an exploded schematic diagram of a centrifugal fan and a mounting bracket provided in a specific embodiment of the utility model, wherein the centrifugal fan is provided with a noise reduction plate;

[0025] Figure 7 It is a structural schematic diagram of a fan assembly provided by a specific implementation mode of the utility model, wherein the centrifugal fan is provided with a noise reduction plate.

[0026] In the figure:

[0027] 1. Mainframe box; 2. Centrifugal fan; 3. Fixing parts; 4. Fasteners; 5. Mounting bracket;

[0028] 11. Box top plate; 12. Box side plate;

[0029] 21. Volute enclosure; 22. Volute side plate; 23. Noise reduction plate; 24. Volute top plate;

[0030] 31. Mounting boss; 32. Connection hole;

[0031] 51. Mounting plate; 52. Mounting arm; 53. Mounting hole. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 7As shown, this embodiment provides a fan assembly, which includes a mainframe housing 1 and a centrifugal fan 2 disposed in the mainframe housing 1, the centrifugal fan 2 is connected to the housing top plate 11 of the mainframe housing 1, the centrifugal fan 2 is suspended in the mainframe housing 1, and the top of the centrifugal fan 2 is connected to the housing top plate 11 of the mainframe housing 1 to balance the gravity of the centrifugal fan 2. The centrifugal fan 2 may be provided with a volute top plate 24, and the volute top plate 24 may be fixedly connected to the housing top plate 11 by screws. In order to prevent the centrifugal fan 2 from shaking, the bottom of the centrifugal fan 2 also needs to be fixed, and a fixing member 3 is provided on the inner side of the housing side plate 12 of the mainframe housing 1, and the centrifugal fan 2 is connected to the fixing member 3 by a fastener 4. The fastener 4 does not need to be directly connected to the side panel 12 of the box, which avoids the risk of oil leakage caused by opening holes in the side panel 12 of the box, reduces the user's anxiety about sanitary blind spots, and improves the user's experience. The fastener 4 will not be exposed outside the main box 1. The outer surface of the main box 1 is flat and smooth, which improves the appearance of the main box 1 and enhances the product competitiveness of the range hood. There is no need to configure a decorative panel outside the main box 1 to cover the screw end, which reduces the assembly difficulty and manufacturing cost of the range hood.

[0036] In some embodiments, the fixing member 3 can be welded to the box side panel 12 to ensure the connection strength between the fixing member 3 and the box. Alternatively, the fixing member 3 can be bonded to the box side panel 12. Compared with the welding method, the bonding method can reduce the assembly cost and has low requirements for manual operation. Alternatively, the fixing member 3 can be integrally formed with the box side panel 12, reducing the subsequent assembly steps and reducing the subsequent assembly requirements.

[0037] Optionally, the fixing member 3 is provided with a mounting boss 31, and the mounting boss 31 is provided with a connecting hole 32, and the end of the fastener 4 extends into the connecting hole 32. The mounting boss 31 and the connecting hole 32 can accommodate the end of the fastener 4. With such a configuration, the fixing member 3 can be designed to be relatively thin, reducing the weight of the fixing member 3 and meeting the lightweight requirements of the entire range hood. The mounting boss 31 can be a thin bent sheet structure, which is formed on the fixing member 3 by stamping or the like. The mounting boss 31 can also be a solid protruding structure, which is fixedly connected to the fixing member 3 by welding or the like. The fixing member 3 can be a long strip of plate-like structure, and two mounting bosses 31 can be provided, and the two mounting bosses 31 are respectively located at the two ends of the fixing member 3. The two mounting bosses 31 can be located on both sides of the centrifugal fan 2 to facilitate the installation of the fastener 4.

[0038] To facilitate the assembly of the fastener 4 on the centrifugal fan 2, optionally, a mounting bracket 5 is provided on the centrifugal fan 2, and the mounting bracket 5 is connected to the fixing member 3 through the fastener 4. The mounting bracket 5 provides sufficient operating space for the installation of the fastener 4, and at the same time, the mounting bracket 5 is easy to replace during subsequent maintenance and repair, which is conducive to reducing the maintenance and repair costs of the centrifugal fan 2.

[0039] Optionally, the mounting bracket 5 includes a mounting plate 51 and a mounting arm 52 disposed on the mounting plate 51, the mounting arm 52 is connected to the centrifugal fan 2, and the mounting plate 51 is connected to the fixing member 3 through the fastener 4. The mounting plate 51 can be parallel to the plate-shaped fixing member 3, providing a convenient installation space and operation space for the fastener 4. The mounting arm 52 is conducive to adapting to the installation space and installation angle between the mounting plate 51 and the centrifugal fan 2. The mounting arm 52 can be fixedly connected to the mounting plate 51 by welding, screws, rivets, etc., and the mounting arm 52 can also be integrally formed with the mounting plate 51. The mounting plate 51 is provided with a mounting hole 53, and the fastener 4 can be a screw. The fastener 4 is penetrated through the mounting hole 53 and extends into the mounting boss 31, and is threadedly matched with the connecting hole 32. The fastener 4 can be provided with one, two or more, which is not limited here. The number of mounting bosses 31 may be the same as or different from the number of fasteners 4 . For example, one mounting boss 31 corresponds to two fasteners 4 , and the number of mounting holes 53 and connecting holes 32 may be the same as the number of fasteners 4 .

[0040] In some embodiments, Figure 4 As shown, the mounting arm 52 can be connected to the volute shroud 21 of the centrifugal fan 2. The volute shroud 21 is usually an arc-shaped plate, so the mounting arm 52 can include an arc-shaped arm and a flat plate arm, and the arc-shaped arm fits and is fixedly connected to the volute shroud 21, for example, by welding, screws, rivets, etc. The arc-shaped arm is connected to the mounting plate 51 through the flat plate arm, and the arc-shaped arm ensures the force area required for the fixed connection between the mounting arm 52 and the volute shroud 21. The flat plate arm allows the mounting plate 51 and the volute shroud 21 to maintain a certain installation space, providing an operating space for screwing the fastener 4.

[0041] In some embodiments, Figure 5 As shown, the mounting arm 52 can be connected to the volute side plate 22 of the centrifugal fan 2. The volute side plate 22 is usually a flat plate, and the mounting arm 52 can be a flat arm-shaped structure, which can fit with the volute side plate 22 to ensure the force-bearing area required for the fixed connection between the mounting arm 52 and the volute side plate 22, and the length of the mounting arm 52 itself also allows the mounting plate 51 and the volute enclosure 21 to maintain a certain installation space, providing an operating space for screwing the fastener 4.

[0042] Optionally, two mounting arms 52 and two volute side plates 22 are provided, and the two mounting arms 52 are connected to the two volute side plates 22 in a one-to-one correspondence. The two mounting arms 52 clamp the outer sides of the two volute side plates 22 to prevent the mounting plate 51 from shaking, making the mounting plate 51 more stable, and providing a stable working environment for the centrifugal fan 2.

[0043] In some embodiments, the volute enclosure 21 of the centrifugal fan 2 is provided with a noise reduction plate 23, and two mounting arms 52 are respectively located on both sides of the noise reduction plate 23. The two mounting arms 52 are connected to the two volute side plates 22 in a one-to-one correspondence, and will not cause structural interference with the noise reduction plate 23. The noise reduction plate 23 is located between the mounting plate 51 and the volute enclosure 21, which neither affects the noise reduction function of the noise reduction plate 23, nor does the noise reduction plate 23 and the mounting plate 51 cause structural interference.

[0044] This embodiment also provides a range hood, including a smoke collecting assembly and the above-mentioned fan assembly. Under the negative pressure of the centrifugal fan 2, indoor oil smoke is sucked into the main housing 1 and the fan volute through the smoke collecting assembly, and then discharged to the outside through the check valve and the smoke exhaust pipe. The centrifugal fan 2 is suspended in the main housing 1, and the top of the centrifugal fan 2 is connected to the top plate 11 of the main housing 1 to balance the gravity of the centrifugal fan 2. To prevent the centrifugal fan 2 from shaking, a fixing part 3 is provided on the inner side of the side panel 12 of the main housing 1. The centrifugal fan 2 is connected to the fixing part 3 via a fastener 4. The fastener 4 does not need to be directly connected to the side panel 12 of the housing, thereby avoiding the risk of oil leakage caused by opening holes in the side panel 12, reducing the user's anxiety about sanitary dead corners, and improving the user's experience. The fastener 4 will not be exposed outside the main housing 1. The outer surface of the main housing 1 is flat and smooth, which improves the refinement of the appearance of the main housing 1 and enhances the product competitiveness of the range hood. There is no need to configure a decorative panel outside the main housing 1 to cover the screw ends, thereby reducing the assembly difficulty and manufacturing cost of the range hood.

[0045] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fan assembly, comprising a mainframe housing (1) and a centrifugal fan (2) disposed in the mainframe housing (1), wherein the centrifugal fan (2) is connected to a housing top plate (11) of the mainframe housing (1), characterized in that: A fixing member (3) is provided on the inner side of the case side plate (12) of the main case (1), and the centrifugal fan (2) is connected to the fixing member (3) via a fastener (4).

2. The fan assembly according to claim 1, characterized in that: The fixing member (3) is welded to the box side panel (12); or, the fixing member (3) is bonded to the box side panel (12); or, the fixing member (3) is integrally formed with the box side panel (12).

3. The fan assembly according to claim 1, characterized in that: The fixing member (3) is provided with a mounting boss (31), the mounting boss (31) is provided with a connecting hole (32), and the end of the fastener (4) extends into the connecting hole (32).

4. The fan assembly according to any one of claims 1 to 3, characterized in that: The centrifugal fan (2) is provided with a mounting bracket (5), and the mounting bracket (5) is connected to the fixing member (3) via the fastener (4).

5. The fan assembly according to claim 4, characterized in that: The mounting bracket (5) comprises a mounting plate (51) and a mounting arm (52) arranged on the mounting plate (51); the mounting arm (52) is connected to the centrifugal fan (2); and the mounting plate (51) is connected to the fixing member (3) via the fastener (4).

6. The fan assembly according to claim 5, characterized in that: The mounting arm (52) is connected to the volute enclosure (21) of the centrifugal fan (2).

7. The fan assembly according to claim 5, characterized in that: The mounting arm (52) is connected to the volute side plate (22) of the centrifugal fan (2).

8. The fan assembly according to claim 7, characterized in that: Two of the mounting arms (52) and two of the volute side plates (22) are provided, and the two mounting arms (52) are connected to the two volute side plates (22) in a one-to-one correspondence.

9. The fan assembly according to claim 8, characterized in that: The volute enclosure (21) of the centrifugal fan (2) is provided with a noise reduction plate (23), and the two mounting arms (52) are respectively located on both sides of the noise reduction plate (23).

10. A range hood, characterized in that: It comprises a smoke collecting assembly and a fan assembly as described in any one of claims 1 to 9.

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