Volute mounting assembly, fan system and range hood

Abstract

The utility model relates to a volute installation assembly, a fan system and a range hood, the volute installation assembly comprises a support used for being respectively connected with a volute and an external installation foundation, and the volute installation assembly is characterized in that at least part of the support is located on the outer side of the volute; and a first mounting hole for connecting the bracket with an external mounting foundation is formed in the position, exposed out of the outer side of the volute, of the bracket. The volute installation assembly has the advantages that a larger installation space can be formed between the volute installation assembly and an external installation foundation, interference between a fastener and a volute can be avoided, the height of the volute installation assembly is not limited by the length of the fastener any more, and a thinner volute installation assembly can be designed.

Description

Technical Field

[0001] The utility model relates to the technical field of volute installation, in particular to a volute installation component. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Range hoods work based on the principle of fluid dynamics. They absorb and exhaust oil smoke through a fan system installed inside the range hood, and use a filter to filter out some grease particles. The fan system includes a volute, an impeller installed in the volute, and a motor that drives the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, sucking the oil smoke under the range hood into the fan system. After being accelerated by the fan system, it is collected by the volute and guided to be discharged outdoors.

[0003] The fan system in the prior art is usually installed in the range hood through a volute fixing part. For example, the Chinese utility model patent with patent number ZL201821990400.1 (authorization announcement number CN209445460U) discloses a volute and a range hood, wherein the volute is provided with a volute fixing part, and the volute fixing part includes a first mounting surface and a second mounting surface, wherein the first mounting surface is used to connect with the chassis, and the second mounting surface is attached and connected with the rear plate of the volute. However, the above-mentioned volute has the following limitations in use: due to the large mass of the volute, considering the falling factor during transportation, in order to ensure the reliability of the quality of the range hood, the fastener is usually thick and long, but the projection of the first mounting surface on the above-mentioned volute fixing part is located on the rear plate of the volute, so it is necessary to increase the distance between the first mounting surface and the rear plate to meet the installation of the fastener, but if the distance between the first mounting surface and the rear plate is large, the overall volume of the volute becomes larger, so it is not suitable for use in ultra-thin range hoods. Therefore, further improvements to the prior art are needed. Utility Model Content

[0004] The first technical problem to be solved by the utility model is to provide a volute mounting assembly which is not limited by the length of fasteners in view of the above-mentioned prior art.

[0005] The second technical problem to be solved by the utility model is to provide a fan system using the above-mentioned volute mounting assembly, which is particularly suitable for use in ultra-thin range hoods.

[0006] The third technical problem to be solved by the present invention is to provide a range hood using the above-mentioned fan system.

[0007] The technical solution adopted by the utility model to solve the first technical problem mentioned above is: a volute mounting assembly, including a bracket for connecting to the volute and an external mounting base respectively, characterized in that: the bracket is at least partially located on the outside of the volute, and the bracket is provided with a first mounting hole for connecting the bracket to the external mounting base at a position exposed to the outside of the volute.

[0008] Preferably, the support comprises:

[0009] A first mounting plate, attached to the outer surface of the volute; and

[0010] The second mounting plate is substantially parallel to the first mounting plate and connected via a connecting plate, the outer end of the second mounting plate is exposed outside the volute, and the first mounting hole is disposed on the outer end of the second mounting plate.

[0011] In order to facilitate the second mounting plate to be exposed outside the volute, the first mounting plate is arranged adjacent to the outer edge of the volute.

[0012] Preferably, the first mounting plate, the connecting plate and the second mounting plate are jointly enclosed to form a C-shaped bracket with an opening facing the outside of the volute.

[0013] In order to improve the rigidity of the volute mounting assembly, reinforcing ribs are further provided between the first mounting plate and the second mounting plate.

[0014] To improve the bending strength of the second mounting plate, at least two groups of profiles are provided on the second mounting plate at intervals along its width direction, each profile extends along the length direction of the second mounting plate, and the first mounting hole is provided between two adjacent groups of profiles.

[0015] Preferably, the starting end of at least one group of profiles intersects with the end of the reinforcing rib in the width direction of the second mounting plate.

[0016] In order to facilitate the fixation between the first mounting plate and the outer surface of the volute, the width of the second mounting plate is smaller than that of the first mounting plate, and the first mounting plate has a mounting area exposed to the second mounting plate in its width direction.

[0017] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a fan system, including a volute, an impeller rotatably arranged in the volute and a motor driving the impeller to rotate, characterized in that: the volute also has a volute mounting assembly as mentioned above.

[0018] The technical solution adopted by the utility model to solve the third technical problem mentioned above is: a range hood, including a casing and a fan system arranged in the casing, characterized in that: the fan system adopts the fan system as mentioned above, and the inner wall surface of the casing is the above-mentioned external mounting base.

[0019] Preferably, a first sunken platform recessed toward the volute is provided on the bracket at a position where the first mounting hole is provided, and a second sunken platform recessed toward the volute is provided at a position corresponding to the first sunken platform on the casing, and a second mounting hole is provided in the second sunken platform, and the volute and the casing are fixed by fasteners respectively passing through the second mounting hole and the first mounting hole.

[0020] Compared with the prior art, the advantages of the present invention are: by providing a bracket that is at least partially located on the outside of the volute, and providing a first mounting hole for connecting the bracket to an external mounting base at a position exposed on the outside of the volute, a larger installation space can be provided between the volute mounting assembly and the external mounting base, interference between the fasteners and the volute can be avoided, so that the height of the volute mounting assembly is no longer limited by the length of the fasteners, and a thinner volute mounting assembly can be designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the volute mounting assembly in the first embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the fan system in the second embodiment of the utility model (the impeller and the motor are omitted);

[0023] Figure 3 for Figure 2 Structural schematic diagram of the middle volute mounting assembly;

[0024] Figure 4 for Figure 2 Another structural diagram of the middle volute mounting assembly from another perspective;

[0025] Figure 5 This is a cross-sectional view of the installation structure of the fan system in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] This embodiment relates to a volute mounting assembly, a fan system using the volute mounting assembly, and a range hood using the fan system. The range hood includes a casing 6 and a fan system disposed in the casing 6, the fan system includes a volute 1, an impeller (not shown in the figure) rotatably disposed in the volute 1, and a motor (not shown in the figure) for driving the impeller to rotate, the volute 1 of the fan system is fixed to the external mounting base 2 through the above-mentioned volute mounting assembly, and the inner wall surface of the casing 6 in this embodiment is the above-mentioned external mounting base 2.

[0029] Among them, the volute mounting assembly includes a bracket 3 for connecting to the volute 1 and the external mounting base 2 respectively, the bracket 3 is at least partially located on the outside of the volute 1, and the bracket 3 is provided with a first mounting hole 31 for connecting the bracket 3 with the external mounting base 2 at a position exposed to the outside of the volute 1.

[0030] like Figure 1 As shown, the bracket 3 in this embodiment includes a first mounting plate 3a and a second mounting plate 3b, the first mounting plate 3a is attached to the outer surface of the volute 1; the second mounting plate 3b is substantially parallel to the first mounting plate 3a and connected via a connecting plate 3c, the outer end of the second mounting plate 3b is exposed to the outside of the volute 1, and the first mounting hole 31 is provided on the outer end of the second mounting plate 3b. In addition, the first mounting plate 3a is arranged adjacent to the outer edge of the volute 1, so that the outer end of the second mounting plate 3b can be more exposed to the volute 1, so that the installation space between the second mounting plate 3b and the housing 6 is not restricted.

[0031] The first mounting plate 3a, the connecting plate 3c and the second mounting plate 3b are enclosed together to form a C-shaped bracket 3 with an opening facing the outside of the volute 1, such as Figure 1 As shown, the connecting plate 3c is substantially perpendicular to the first mounting plate 3a and the second mounting plate 3b, and the first mounting plate 3a, the connecting plate 3c and the second mounting plate 3b are integrally formed.

[0032] The connecting plate 3c is used to prevent the second mounting plate 3b from fitting into the volute 1 and to avoid insufficient bending strength due to being too thin in the thickness direction. Therefore, reinforcing ribs 4 are provided between the first mounting plate 3a and the second mounting plate 3b. The structural rigidity of the volute mounting assembly is improved by the reinforcing ribs 4, and the height of the connecting plate 3c can be further shortened, thereby further reducing the thickness of the volute mounting assembly.

[0033] If factors such as cost are taken into consideration and no reinforcing ribs are provided, the height h (including sheet metal thickness) of the connecting plate 3c usually needs to be greater than 10 mm; if reinforcing ribs 4 are provided, the height h (including sheet metal thickness) of the connecting plate 3c usually needs to be greater than 6 mm; the sheet metal thickness is usually between 0.5 and 2 mm, preferably 0.8 to 1.5 mm.

[0034] Embodiment 2:

[0035] like Figures 2 to 5 As shown, different from the first embodiment, in this embodiment, at least two groups of profiles 5 are arranged on the second mounting plate 3b along its width direction, each profile 5 extends along the length direction of the second mounting plate 3b, and the first mounting hole 31 is arranged between two adjacent groups of profiles 5. Figure 3 As shown, the length direction of the second mounting plate 3b is denoted as the X direction. In this embodiment, there are two groups of press profiles 5, and the press profile depth is usually 2 to 4 mm. Figure 4The length of the second mounting plate 3b is greater than that of the first mounting plate 3a. Since the bending strength of the second mounting plate 3b is relatively poor compared with that of the first mounting plate 3a, the above-mentioned pressure profile 5 is provided to improve the bending strength of the second mounting plate 3b.

[0036] like Figure 4 As shown, the starting end of at least one group of profiles 5 intersects with the end of the reinforcing rib 4 in the width direction of the second mounting plate 3b. This can further improve the bending strength of the second mounting plate 3b.

[0037] In addition, Figure 3 As shown, the width of the second mounting plate 3b is smaller than that of the first mounting plate 3a, and the first mounting plate 3a has a mounting area 30 exposed from the second mounting plate 3b in its width direction. There are two mounting areas 30 in this embodiment, which are respectively located on both sides of the width direction of the first mounting plate 3a. The width of each mounting area 30 should be greater than 15 mm, so that the first mounting plate 3a can be easily welded to the rear cover plate of the volute 1.

[0038] The bracket 3 is provided with a first sunken platform 32 which is recessed toward the direction close to the volute 1 at the position where the first mounting hole 31 is opened, and the casing 6 is provided with a second sunken platform 61 which is recessed toward the direction close to the volute 1 at the position corresponding to the first sunken platform 32. A second mounting hole (not shown in the figure) is opened in the second sunken platform 61, and the volute 1 and the casing 6 are fixed by fasteners 7 which are respectively penetrated through the second mounting hole 611 and the first mounting hole 31. The fasteners 7 in this embodiment are bolts, screws, etc. Figure 5 As shown, by arranging the second sunken platform 61 in the first sunken platform 32, the thickness of the range hood increased due to the installation of the fastener 7 can be reduced.

[0039] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A volute mounting assembly, comprising a bracket (3) for connecting to a volute (1) and an external mounting base (2), respectively, characterized in that: The bracket (3) is at least partially located outside the volute (1), and the bracket (3) is provided with a first mounting hole (31) for connecting the bracket (3) with an external mounting base (2) at a position exposed outside the volute (1); The support (3) comprises: A first mounting plate (3a) is attached to the outer surface of the volute (1); and The second mounting plate (3b) is substantially parallel to the first mounting plate (3a) and is connected via a connecting plate (3c); the outer end of the second mounting plate (3b) is exposed outside the volute (1); and the first mounting hole (31) is provided on the outer end of the second mounting plate (3b).

2. The volute mounting assembly according to claim 1, characterized in that: The first mounting plate (3a) is arranged adjacent to the outer edge of the volute (1).

3. The volute mounting assembly according to claim 2, characterized in that: The first mounting plate (3a), the connecting plate (3c) and the second mounting plate (3b) are enclosed together to form a C-shaped bracket (3) with an opening facing the outside of the volute (1).

4. The volute mounting assembly according to claim 1, characterized in that: A reinforcing rib (4) is also provided between the first mounting plate (3a) and the second mounting plate (3b).

5. The volute mounting assembly according to claim 4, characterized in that: At least two groups of profiles (5) are arranged on the second mounting plate (3b) at intervals along its width direction, each profile (5) extends along the length direction of the second mounting plate (3b), and the first mounting hole (31) is arranged between two adjacent groups of profiles (5).

6. The volute mounting assembly according to claim 5, characterized in that: The starting end of at least one group of profiles (5) intersects with the end of the reinforcing rib (4) in the width direction of the second mounting plate (3b).

7. The volute mounting assembly according to any one of claims 1 to 6, characterized in that: The width of the second mounting plate (3b) is smaller than the width of the first mounting plate (3a), and the first mounting plate (3a) has a mounting area (30) exposed from the second mounting plate (3b) in the width direction thereof.

8. A fan system, comprising a volute (1), an impeller rotatably arranged in the volute (1), and a motor for driving the impeller to rotate, characterized in that: The volute (1) also has a volute mounting assembly as described in any one of claims 1 to 7.

9. A range hood, comprising a housing (6) and a fan system arranged in the housing (6), characterized in that: The fan system adopts the fan system as described in claim 8, and the inner wall surface of the casing (6) is the external mounting base (2).

10. The range hood according to claim 9, characterized in that: The bracket (3) is provided with a first sunken platform (32) which is recessed in a direction close to the volute (1) at a position where the first mounting hole (31) is provided, and the casing (6) is provided with a second sunken platform (61) which is recessed in a direction close to the volute (1) at a position corresponding to the first sunken platform (32), and a second mounting hole is provided in the second sunken platform (61), and the volute (1) and the casing (6) are fixed by fasteners (7) which are respectively penetrated through the second mounting hole and the first mounting hole (31).

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