Motor support and extractor hood

Abstract

The utility model provides a kind of motor support and extractor hood, it relates to kitchen appliance technical field, wherein, motor support is applied to extractor hood, motor support mainly includes support body, support body is formed by rod-shaped metal piece bending, and the first end and tail end of metal piece are connected;Support body includes multiple motor positioning structures and multiple volute positioning structures, which are all angular, motor positioning structure and volute positioning structure are sequentially arranged alternately along the circumference of support body;Multiple motor positioning structures are arranged on one side of multiple volute positioning structures;Multiple motor positioning structures are located at first plane;Multiple volute positioning structures are located at second plane;First plane and second plane are parallel, first plane and second plane are both perpendicular to the axis of support body. Through the embodiment provided in the present application, the motor support can reduce the physical obstruction to the air inlet, avoiding the air volume of the extractor hood to decrease;At the same time, the problem of stress concentration and fracture caused by multi-point welding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a motor bracket and a range hood. Background Technology

[0002] As people's living standards improve, range hoods, as kitchen appliances that purify the kitchen environment, have become almost indispensable. To meet the performance requirements of high suction power and high air pressure, range hoods often employ a single fan and dual air intake design. The motor, as one of the core components of the range hood, provides power. The motor is generally installed inside the fan's casing. Due to the motor's large size and weight, it generates significant vibration during high-speed operation. This vibration is transmitted through the contact surface; therefore, the motor is generally not directly connected to the casing. Instead, a motor bracket is installed on the back plate of the casing, and the motor is fixed to the bracket.

[0003] However, the motor bracket is relatively large compared to the volute air inlet, which reduces the effective air intake area of ​​the volute air inlet, increases the air intake resistance, and causes the range hood to reduce its air volume. Utility Model Content

[0004] This application addresses the shortcomings of existing methods by providing a motor bracket and a range hood to solve the technical problem that the motor bracket is relatively large compared to the volute air inlet, which reduces the effective air intake area of ​​the volute air inlet, increases air intake resistance, and leads to a decrease in the air volume of the range hood.

[0005] In a first aspect, embodiments of this application provide a motor bracket for use in a range hood. The motor bracket mainly includes a bracket body, which is formed by bending a rod-shaped metal part, with the first and last ends of the metal part connected. The bracket body includes multiple motor positioning structures and multiple volute positioning structures, all of which are angular. The motor positioning structures and the volute positioning structures are alternately arranged sequentially along the circumference of the bracket body. The multiple motor positioning structures are disposed on one side of the multiple volute positioning structures. The multiple motor positioning structures are located on a first plane. The multiple volute positioning structures are located on a second plane. The first plane and the second plane are parallel, and both the first plane and the second plane are perpendicular to the axis of the bracket body.

[0006] As an optional implementation, the motor bracket further includes a nut, which is welded into the motor positioning structure.

[0007] As an optional implementation, in the axial projection of the bracket body, a plurality of motor positioning structures and a plurality of volute positioning structures are arranged circumferentially, with the plurality of motor positioning structures located inside the plurality of volute positioning structures.

[0008] As an optional implementation, the bracket body further includes a connecting section, which is rod-shaped and connected to the adjacent motor positioning structure and the volute positioning structure.

[0009] As an optional implementation, the motor bracket further includes a reinforcing beam, which is welded to the two connecting sections connected by the motor positioning structure.

[0010] As an optional implementation, the motor bracket includes a plurality of reinforcing beams located in a third plane, which is parallel to both the first plane and the second plane.

[0011] As an optional implementation, the motor positioning structure is a bent structure with an acute angle, and the opening of the motor positioning structure faces the outside of the bracket body.

[0012] As an optional implementation, the volute positioning structure is a bent structure with an obtuse angle, and the opening of the volute positioning structure faces the inner side of the support body.

[0013] As an optional implementation, the two connecting segments connected by the motor positioning structure are a first segment and a second segment, respectively; the first end of the first segment and the first end of the second segment are both connected to the motor positioning structure, and the distance between the first end of the first segment and the first end of the second segment is taken as a first distance; the second end of the first segment is connected to the first volute positioning structure, and the second end of the second segment is connected to the second volute positioning structure, the first volute positioning structure and the second volute positioning structure are adjacent, and the distance between the second end of the first segment and the second end of the second segment is taken as a second distance; the first distance is less than the second distance.

[0014] Secondly, this application provides a range hood, which mainly includes a volute, a motor, and a motor bracket as described in any of the preceding embodiments; the inner wall of the volute forms an inwardly protruding positioning protrusion; the motor is installed inside the volute; the motor bracket is installed inside the volute, the corner of the volute positioning structure engages with the positioning protrusion, and the corner of the motor positioning structure is fixedly connected to the motor.

[0015] This application provides a motor bracket and a range hood. The technical solution provided by the embodiments of this application brings at least the following beneficial effects:

[0016] Multiple motor positioning structures and multiple volute positioning structures are formed by repeatedly bending rod-shaped metal parts. The ends of the metal parts are welded into a ring-shaped bracket, and the ring cross-section forms a continuous airflow guide surface, which reduces the physical obstruction of the air inlet, ensures the effective air intake area of ​​the air inlet, reduces air intake resistance, and avoids a decrease in the air volume of the range hood. In addition, it can also reduce the number of welding points and avoid stress concentration and breakage problems caused by multi-point welding.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a motor bracket provided in an embodiment of this application;

[0020] Figure 2 A longitudinal schematic diagram of a motor bracket provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of a range hood provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of a volute in a range hood provided in an embodiment of this application;

[0023] Figure 5 This application provides a schematic diagram illustrating the connection relationship between the volute, motor, and support body in a range hood.

[0024] Figure 6 for Figure 5 A schematic diagram of the exploded structure;

[0025] Figure 7 This is a schematic diagram showing the positional relationship between the first side panel and the positioning protrusion in a range hood provided in an embodiment of this application.

[0026] Figure labels and corresponding explanations:

[0027] 1: Support body; 11: Motor positioning structure; 12: Volute positioning structure; 13: Connecting section;

[0028] 2: Nut;

[0029] 3: Strengthen the beam;

[0030] 4: Volute; 41: Positioning protrusion; 42: First side plate; 43: Second side plate;

[0031] 5: Motor. Detailed Implementation

[0032] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, elements, and / or components, but does not exclude the presence or addition of one or more other features, elements, components, and / or groups thereof. The term “and / or” as used herein includes all or any units and all combinations thereof of one or more associated listed items.

[0034] like Figure 1-2 As shown in the figure, this application embodiment provides a motor bracket, which is applied to a range hood. The motor bracket mainly includes a bracket body 1, which is formed by bending a rod-shaped metal part, and the first and second ends of the metal part are connected. The bracket body 1 includes a plurality of motor positioning structures 11 and a plurality of volute positioning structures 12, all of which are angular. The motor positioning structures 11 and the volute positioning structures 12 are arranged alternately along the circumference of the bracket body 1. The plurality of motor positioning structures 11 are disposed on one side of the plurality of volute positioning structures 12. The plurality of motor positioning structures 11 are located on a first plane. The plurality of volute positioning structures 12 are located on a second plane. The first plane and the second plane are parallel to each other, and both the first plane and the second plane are perpendicular to the axis of the bracket body 1.

[0035] In this embodiment, the motor bracket is horizontally arranged, as are the motor positioning structure 11 and the volute positioning structure 12. The axis of the bracket body 1 is vertically arranged. Multiple motor positioning structures 11 are at a first horizontal height, and multiple volute positioning structures 12 are at a second horizontal height. The first horizontal height is higher than the second horizontal height, meaning the motor positioning structures 11 are positioned higher than the volute positioning structures 12. The motor positioning structures 11 and volute positioning structures 12 are not on the same plane. To ensure the overall strength of the bracket body 1, a motor positioning structure 11 is arranged between two adjacent volute positioning structures 12 in the circumferential direction of the bracket body 1. The lower-height volute positioning structure 12 provides sufficient support for the higher-height motor positioning structure 11.

[0036] In some embodiments, the multiple motor positioning structures 11 are not on the same plane.

[0037] In some embodiments, the plurality of volute positioning structures 12 are not on the same plane.

[0038] The motor bracket provided in this application embodiment uses a rod-shaped metal part to be bent multiple times to form multiple motor positioning structures 11 and multiple volute positioning structures 12. The first and last ends of the metal part are welded into an annular bracket, and the annular cross section forms a continuous airflow guiding surface, reducing physical obstruction of the air inlet, ensuring the effective air intake area of ​​the air inlet, reducing air intake resistance, and preventing the air volume of the range hood from decreasing; in addition, it can also reduce the number of welding points and avoid stress concentration and breakage problems caused by multi-point welding.

[0039] The motor bracket is highly adjustable. The number, position, and size of the motor positioning structure 11 and the volute positioning structure 12 can be set according to the specific structure of the fan and the volute 4, thus having stronger adaptability.

[0040] like Figure 1 As shown, as an optional implementation, the motor bracket also includes a nut 2, which is welded into the motor positioning structure 11.

[0041] Based on the aforementioned embodiments, in this embodiment, the motor bracket includes multiple nuts 2, the number of which matches the number of motor positioning structures 11, with at least one nut 2 welded into at least one motor positioning structure 11. Bolts pass through the nuts 2, achieving a bolted connection between the motor bracket and the motor 5. The angular motor positioning structure 11 provides sufficient support for the nuts 2 to ensure the strength of the connection between the motor bracket and the motor 5.

[0042] like Figure 1 As shown, in an optional implementation, multiple motor positioning structures 11 and multiple volute positioning structures 12 are arranged circumferentially on the axial projection of the support body 1, with the multiple motor positioning structures 11 located inside the multiple volute positioning structures 12.

[0043] The distribution of multiple motor positioning structures 11 is adapted to the structure of motor 5; the distribution of multiple volute positioning structures 12 is adapted to volute 4.

[0044] like Figure 1-2 As shown, as an optional implementation, the bracket body 1 also includes a connecting section 13, which is rod-shaped and connected to the adjacent motor positioning structure 11 and volute positioning structure 12.

[0045] Based on the aforementioned embodiments, in this embodiment, the connecting segment 13 is inclined upward and inward to connect the adjacent motor positioning structure 11 and volute positioning structure 12. That is, both a motor positioning structure 11 and a volute positioning structure 12 are connected to two connecting segments 13. Among them, the two connecting segments 13 connected by a motor positioning structure 11 are closer together, while the two connecting segments 13 connected by a volute positioning structure 12 are farther apart.

[0046] like Figure 1-2 As shown, as an optional implementation, the motor bracket also includes a reinforcing beam 3, which is welded to two connecting sections 13 connected by a motor positioning structure 11.

[0047] Based on the aforementioned embodiments, in this embodiment, the reinforcing beam 3 connects the two connecting segments 13 to strengthen the strength of the connecting segments 13 and ensure the support strength of the motor positioning structure 11.

[0048] As an optional implementation, the motor bracket includes a plurality of reinforcing beams 3, which are located on a third plane, and the third plane is parallel to both the first plane and the second plane.

[0049] Based on the aforementioned embodiments, in this embodiment, all reinforcing beams 3 are horizontally arranged, with a height lower than the motor positioning structure 11 and higher than the volute positioning structure 12. All reinforcing beams 3 are located on the same plane, ensuring that the support strength of the motor positioning structure 11 is the same or similar, thus avoiding structural damage caused by different support strengths.

[0050] like Figure 1 As shown, as an optional implementation, the motor positioning structure 11 is a bent structure with an acute angle, and the opening of the motor positioning structure 11 faces the outside of the bracket body 1.

[0051] Based on the foregoing embodiments, in this embodiment, the motor positioning structure 11 includes two intersecting first connecting segments, and the motor positioning structure 11 is horizontally arranged.

[0052] In some embodiments, the motor positioning structure 11 is tilted.

[0053] In some embodiments, the opening of the motor positioning structure 11 faces outward from the bracket body 1.

[0054] like Figure 1 As shown, as an optional implementation, the volute positioning structure 12 is a bent structure with an obtuse angle, and the opening of the volute positioning structure 12 faces the inside of the support body 1.

[0055] Based on the foregoing embodiments, in this embodiment, the volute positioning structure 12 includes two intersecting second connecting segments, and the volute positioning structure 12 is horizontally arranged.

[0056] In some embodiments, the volute positioning structure 12 is inclined.

[0057] In some embodiments, the opening of the volute positioning structure 12 faces the inside of the support body 1.

[0058] As an optional implementation, a motor positioning structure 11 connects two connecting segments 13, which are respectively a first segment and a second segment; the first end of the first segment and the first end of the second segment are both connected to the motor positioning structure 11, and the distance between the first end of the first segment and the first end of the second segment is taken as a first distance; the second end of the first segment is connected to a first volute positioning structure 12, and the second end of the second segment is connected to a second volute positioning structure 12, the first volute positioning structure 12 and the second volute positioning structure 12 are adjacent, and the distance between the second end of the first segment and the second end of the second segment is taken as a second distance; the first distance is less than the second distance.

[0059] Based on the aforementioned embodiments, in this embodiment, the connecting segments 13 all extend upward and inward to form an inclined structure. The bottom ends (second ends) of the two connecting segments 13 connected by one motor positioning structure 11 are far apart, while the top ends (first ends) of the two connecting segments 13 connected by one motor positioning structure 11 are close together, providing stable support for the motor positioning structure 11.

[0060] like Figure 1-2 As shown, in some embodiments, the metal part is in the shape of a rod.

[0061] By adopting the above solution, the problems of turbulence and wind pressure loss caused by the right-angle edge of the support, the backward shift of the flow separation point, and the low intensity of turbulence can be avoided.

[0062] In some embodiments, the metal component is stainless steel wire.

[0063] In some embodiments, the metal parts are manufactured using a surface nitriding process, which significantly improves the surface hardness, wear resistance, corrosion resistance, and other properties of the metal parts, thereby extending the service life of the motor bracket.

[0064] like Figure 3-7 As shown, based on the same inventive concept, this application provides a range hood, which mainly includes a volute 4, a motor 5, and a motor bracket of any of the aforementioned embodiments; the inner wall of the volute 4 forms an inwardly protruding positioning protrusion 41; the motor 5 is installed inside the volute 4; the motor bracket is installed inside the volute 4, the corner of the volute positioning structure 12 is engaged with the positioning protrusion 41, and the corner of the motor positioning structure 11 is fixedly connected to the motor 5.

[0065] Based on the aforementioned embodiments, in this embodiment, the volute 4 includes two opposing side plates, namely a first side plate 42 and a second side plate 43. The first side plate 42 has an air inlet, and a plurality of positioning protrusions 41 are formed on the inner side of the first side plate 42. These positioning protrusions 41 are arranged around the outer side of the air inlet, and the number and distribution of the positioning protrusions 41 are adapted to the volute positioning structure 12 of the motor bracket. The motor bracket is positioned by engaging with the positioning protrusions 41 through the volute positioning structure 12, thereby achieving rapid assembly.

[0066] In some embodiments, the motor bracket is welded to the volute 4.

[0067] The range hood provided in this application embodiment has a motor bracket made of rod-shaped metal parts that are bent multiple times to form multiple motor positioning structures 11 and multiple volute positioning structures 12. The ends of the metal parts are welded into an annular bracket, and the annular cross-section forms a continuous airflow guiding surface, which reduces the physical obstruction of the air inlet, ensures the effective air intake area of ​​the air inlet, reduces air intake resistance, and avoids a decrease in the air volume of the range hood. In addition, it can also reduce the number of welding points and avoid stress concentration and breakage caused by multi-point welding.

[0068] In the description of this application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0069] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0070] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0071] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0072] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A motor bracket, used in a range hood, characterized in that, include: The support body (1) is formed by bending a rod-shaped metal part, and the first and last ends of the metal part are connected; the support body (1) includes a plurality of motor positioning structures (11) and a plurality of volute positioning structures (12) that are all angular, and the motor positioning structures (11) and the volute positioning structures (12) are arranged alternately along the circumference of the support body (1); Multiple motor positioning structures (11) are disposed on one side of multiple volute positioning structures (12); the multiple motor positioning structures (11) are located on a first plane; the multiple volute positioning structures (12) are located on a second plane; the first plane and the second plane are parallel to each other, and both the first plane and the second plane are perpendicular to the axis of the support body (1).

2. The motor bracket according to claim 1, characterized in that, Also includes: Nut (2) is welded into the motor positioning structure (11).

3. The motor bracket according to claim 1, characterized in that, On the axial projection of the bracket body (1), a plurality of motor positioning structures (11) and a plurality of volute positioning structures (12) are arranged circumferentially, and the plurality of motor positioning structures (11) are located inside the plurality of volute positioning structures (12).

4. The motor bracket according to claim 3, characterized in that, The support body (1) also includes: The connecting segment (13) is rod-shaped and is connected to the adjacent motor positioning structure (11) and the volute positioning structure (12).

5. The motor bracket according to claim 4, characterized in that, Also includes: The reinforcing beam (3) is welded to the two connecting sections (13) connected by the motor positioning structure (11).

6. The motor bracket according to claim 5, characterized in that, It includes a plurality of the reinforcing beams (3), which are located in a third plane, which is parallel to both the first plane and the second plane.

7. The motor bracket according to claim 5 or 6, characterized in that, The motor positioning structure (11) is a bent structure with an acute angle, and the opening of the motor positioning structure (11) faces the outside of the bracket body (1).

8. The motor bracket according to claim 7, characterized in that, The volute positioning structure (12) is a bent structure with an obtuse angle, and the opening of the volute positioning structure (12) faces the inside of the support body (1).

9. The motor bracket according to claim 8, characterized in that, The two connecting segments (13) connected by the motor positioning structure (11) are the first segment and the second segment, respectively; The first end of the first segment and the first end of the second segment are both connected to the motor positioning structure (11), and the distance between the first end of the first segment and the first end of the second segment is used as the first distance; The second end of the first segment is connected to the first volute positioning structure (12), and the second end of the second segment is connected to the second volute positioning structure (12). The first volute positioning structure (12) and the second volute positioning structure (12) are adjacent to each other. The distance between the second end of the first segment and the second end of the second segment is used as the second distance. The first distance is less than the second distance.

10. A range hood, characterized in that, include: The volute (4) has inwardly protruding positioning protrusions (41) on its inner wall; The motor (5) is installed inside the volute (4); The motor bracket as described in any one of claims 1-9 is installed inside the volute (4), the corner of the volute positioning structure (12) is engaged with the positioning protrusion (41), and the corner of the motor positioning structure (11) is fixedly connected to the motor (5).

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