Fan blade structure and fan

Abstract

The utility model relates to the technical field of mechanical structures, and discloses a fan blade structure and a fan, the fan blade structure comprises: a housing comprising a first housing and a second housing; the reinforcing ribs comprise two longitudinal ribs, the two longitudinal ribs are arranged in the second direction and extend in the first direction, the second direction is perpendicular to the first direction, in the second direction, the two longitudinal ribs and the cross section of the first shell and the cross section of the second shell form an annular structure, and the cross section of each longitudinal rib is of a longitudinal structure; the two ends of each longitudinal structure are connected to the inner surface of the first shell and the inner surface of the second shell correspondingly, and each longitudinal structure comprises at least one arc-shaped structure. According to the fan blade structure, through the arrangement of the reinforcing ribs, the overall strength of the fan blade structure is guaranteed, and meanwhile the breaking strength of the shell is improved; and the shell does not need to be thickened, so that the overall weight of the fan blade structure is reduced, and the energy consumption during fan driving is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical structures, in particular to a fan blade structure and a fan. Background Art

[0002] The fans in the workshop are usually installed on the ceiling or wall. Especially for large workshops, the fan blade structure usually needs to be larger in size so as to play the role of heat dissipation inside the workshop.

[0003] The fan blade structure in the prior art usually has a accommodating cavity inside, one end of the connecting rod is connected to the accommodating cavity of the fan structure, and the other end of the connecting rod is connected to the motor of the fan, and the rotation of the fan blade is achieved by driving the motor; in order to improve the fracture resistance of the installed fan blade structure, the reinforcing ribs in the accommodating cavity are usually arranged as a disconnected structure, that is, one part of the reinforcing ribs is connected to one side of the fan blade, and the other part of the reinforcing ribs is connected to the other side of the fan blade, and the two parts of the reinforcing ribs are disconnected. At the same time, in order to ensure the overall strength of the fan blade, the thickness of the fan blade is thickened; however, due to the large size of the fan blade structure, the thickened fan blade will cause a lot of energy consumption when driving.

[0004] Therefore, how to reduce the energy consumption when driving the fan while ensuring the fracture resistance of the fan blade structure has become a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] The purpose of the utility model is to at least solve the technical problem of how to reduce the energy consumption when driving the fan while ensuring the rigid fracture strength of the fan blade structure. This purpose is achieved through the following technical solutions:

[0006] In the first aspect, the utility model proposes a fan blade structure extending along a first direction, the fan blade structure comprising: an outer shell, comprising a first shell and a second shell connected to the first shell, an accommodating cavity being formed between the first shell and the second shell; and reinforcing ribs, arranged in the accommodating cavity, the reinforcing ribs comprising two longitudinal ribs, the two longitudinal ribs being arranged along a second direction and extending along the first direction, the second direction being perpendicular to the first direction, and along the second direction, the cross-sections of the two longitudinal ribs and the cross-sections of the first shell and the second shell forming an annular structure, the cross-section of the longitudinal ribs being a longitudinal structure, the two ends of each longitudinal structure being respectively connected to the inner surface of the first shell and the inner surface of the second shell, and each longitudinal structure comprising at least one arc structure.

[0007] This kind of fan blade structure, because its reinforcing ribs and the cross-sections of the first shell and the second shell form an annular structure, that is, the reinforcing ribs and the part connected to the outer shell form a closed loop structure without a break in the middle, which can ensure the overall strength of the fan blade structure; in addition, because the longitudinal structure includes at least one arc structure, when the connector is installed in the accommodating cavity, for example, when the connector is threadedly connected to the outer shell by screws, the setting of the arc structure can improve the fracture resistance and deformation capacity of the outer shell 1, and effectively reduce the occurrence of the case where the outer shell 1 is broken due to the installation of the connector. Therefore, this kind of fan blade structure, through the setting of the reinforcing ribs, not only ensures the overall strength of the fan blade structure, but also improves the fracture resistance of the outer shell; and there is no need to thicken the outer shell, which reduces the overall weight of the fan blade structure, thereby reducing the energy consumption when driving the fan.

[0008] In some embodiments of the present invention, the longitudinal structure includes a first arc-shaped structure and a second arc-shaped structure, the first end of the first arc-shaped structure is connected to the inner surface of the first shell, the second end of the first arc-shaped structure is connected to the first end of the second arc-shaped structure, and the second end of the second arc-shaped structure is connected to the inner surface of the second shell.

[0009] In some embodiments of the present invention, the shapes of the first arc-shaped structure and the second arc-shaped structure are both arcs, and the curvature of the first arc-shaped structure is the same as the curvature of the second arc-shaped structure.

[0010] In some embodiments of the present invention, the length of the first arc-shaped structure is the same as the length of the second arc-shaped structure.

[0011] In some embodiments of the utility model, a first rib is provided on the inner surface of the first shell, and along the second direction, the first rib is located between two longitudinal ribs, the first rib is raised relative to the inner surface of the first shell, and the first rib extends along the first direction; and\or, a second rib is provided on the inner surface of the second shell, and along the second direction, the second rib is located between two longitudinal ribs, the second rib is raised relative to the inner surface of the second shell, and the second rib extends along the first direction.

[0012] In some embodiments of the present invention, there are multiple first ribs, and the multiple first ribs are arranged along the second direction; and / or, there are multiple second ribs, and the multiple second ribs are arranged along the second direction.

[0013] In some embodiments of the present invention, there are two first convex ribs; and / or, there are two second convex ribs.

[0014] In some embodiments of the present invention, a plurality of first convex ribs are evenly spaced apart along the second direction between the two longitudinal ribs; and / or a plurality of second convex ribs are evenly spaced apart along the second direction between the two longitudinal ribs.

[0015] In the second aspect, the utility model proposes a fan, including a motor, a plurality of connecting parts and a plurality of any of the above-mentioned blade structures, wherein the plurality of connecting parts and the plurality of blade structures are arranged in a one-to-one correspondence; in a group of corresponding connecting parts and blade structures: the first end of the connecting part is connected to the motor, and the second end of the connecting part is connected to the accommodating cavity of the blade structure.

[0016] In some embodiments of the present invention, the second end of the connecting member is fixed to the accommodating cavity by means of screws.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the overall structure of the fan blade structure provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the fan blade structure provided in an embodiment of the utility model at a viewing angle.

[0021] The reference numerals are as follows:

[0022] 100. Fan blade structure;

[0023] 1. Shell; 11. First shell; 12. Second shell; 13. Accommodating chamber;

[0024] 2. reinforcing ribs; 211. transverse structure; 22. longitudinal ribs; 221. longitudinal structure; 2211. first arc-shaped structure; 2212. second arc-shaped structure; 231. first convex rib; 232. second convex rib. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0027] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0028] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0029] Figure 1 A schematic diagram of the overall structure of the fan blade structure provided by an embodiment of the utility model; Figure 2 A schematic diagram of the fan blade structure provided in an embodiment of the utility model at a viewing angle.

[0030] like Figure 1-Figure 2As shown, an embodiment of the utility model provides a fan blade structure 100, extending along a first direction, and the fan blade structure 100 includes: an outer shell 1, including a first shell 11 and a second shell 12 connected to the first shell 11, and a accommodating cavity 13 is formed between the first shell 11 and the second shell 12; and a reinforcing rib 2, arranged in the accommodating cavity 13, the reinforcing rib 2 includes two longitudinal ribs 22, the two longitudinal ribs 22 are arranged along a second direction and extend along the first direction, the second direction is perpendicular to the first direction, along the second direction, the cross-section of the two longitudinal ribs 22 and the cross-section of the first shell 11 and the second shell 12 form an annular structure, the cross-section of the first shell 11 and the second shell 12 constitutes a transverse structure 211 in the annular structure, the cross-section of the longitudinal rib 22 constitutes a longitudinal structure 221 in the annular structure, the two ends of each longitudinal structure 221 are respectively connected to the inner surface of the first shell 11 and the inner surface of the second shell 12, and each longitudinal structure 221 includes at least one arc structure.

[0031] Among them, since the shape of the cross section of the reinforcing rib 2 along the second direction is the same as the shape of the end face in the length direction of the reinforcing rib, the following description will be based on Figure 2 The shape and structure of the cross section of the reinforcing rib 2 will be described by taking this as an example.

[0032] In the present embodiment, the fan blade structure 100 forms an annular structure due to the cross-section of the reinforcing rib 2 and the first shell 11 and the second shell 12. That is, the reinforcing rib 2 and the part connected to the outer shell 1 form a closed-loop structure with no breaks in the middle, thereby ensuring the overall strength of the fan blade structure 100. In addition, since the longitudinal structure 221 includes at least one arc structure, when a connecting piece is installed in the accommodating cavity 13, for example, when the connecting piece is threadedly connected to the outer shell 1 by screws, the setting of the arc structure can enhance the fracture resistance and deformation capacity of the outer shell 1, thereby effectively reducing the occurrence of fracture of the outer shell 1 due to the installation of the connecting piece.

[0033] Therefore, this fan blade structure 100, through the setting of the reinforcing ribs 2, not only ensures the overall strength of the fan blade structure 100, but also improves the fracture resistance of the outer shell 1; and there is no need to thicken the outer shell 1, thereby reducing the overall weight of the fan blade structure 100, thereby reducing the energy consumption when driving the fan.

[0034] It should be noted that the longitudinal structure 221 can be composed of one arc structure, or three or four arc structures. The number of arc structures is not specifically limited and can be based on actual working conditions to improve the fracture resistance and deformation capacity of the housing 1. The number of arc structures should not be too many, as too many will affect the overall strength of the fan blade structure 100.

[0035] In addition, the connecting piece can be installed in the annular structure, that is, the part of the connecting piece entering the accommodating cavity 13 is surrounded by the reinforcing ribs 2 to further improve the anti-fracture strength and deformation capacity when the shell and the connecting piece are connected. The connecting piece can be a connecting rod, and the connecting rod and the shell 1 can be provided with threaded holes (not shown in the figure) that cooperate with screws.

[0036] like Figure 2 As shown, according to an optional embodiment of the present application, the longitudinal structure 221 includes a first arc-shaped structure 2211 and a second arc-shaped structure 2212, the first end of the first arc-shaped structure 2211 is connected to the inner surface of the first shell 11, the second end of the first arc-shaped structure 2211 is connected to the first end of the second arc-shaped structure 2212, and the second end of the second arc-shaped structure 2212 is connected to the inner surface of the second shell 12.

[0037] In this embodiment, the setting of two arc structures ensures the anti-fracture strength and deformation ability of the lifting shell 1; the number of the two arc structures is small, the processing is convenient, and the overall strength of the fan blade structure 100 itself will not be reduced due to too many arc structures.

[0038] refer to Figure 2 According to an optional embodiment of the present application, the shapes of the first arc structure 2211 and the second arc structure 2212 are both arcs, and the curvature of the first arc structure 2211 is the same as that of the second arc structure 2212. The length of the first arc structure 2211 is the same as that of the second arc structure 2212.

[0039] In this embodiment, the curvature and length of the two arc structures are the same, and the connection between the first arc structure 2211 and the second arc structure 2212 can be located in the middle position between the first shell 11 and the second shell 12. In this way, when the connecting part is installed in the accommodating cavity 13, for example, when the connecting part is threadedly connected to the outer shell 1 by a screw, the force and deformation of the first shell 11 and the second shell 12 are more uniform, thereby further improving the fracture resistance and deformation capacity of the outer shell 1.

[0040] refer to Figure 1 and Figure 2 According to an optional embodiment of the present application, a first rib 231 is provided on the inner surface of the first shell 11, and along the second direction, the first rib 231 is located between the two longitudinal ribs 22, the first rib 231 is raised relative to the inner surface of the first shell 11, and the first rib 231 extends along the first direction; and\or, a second rib 232 is provided on the inner surface of the second shell 12, and along the second direction, the second rib 232 is located between the two longitudinal ribs 22, the second rib 232 is raised relative to the inner surface of the second shell 12, and the second rib 232 extends along the first direction.

[0041] The first convex rib 231 and the second convex rib 232 are collectively referred to as convex ribs hereinafter.

[0042] In this embodiment, the provision of the convex rib can further enhance the overall strength of the fan blade structure 100, and the convex rib is provided between two longitudinal ribs 22. When the connecting piece is installed in the accommodating cavity 13, for example, when the connecting piece is threadedly connected to the outer shell 1 by screws, it will not affect the improvement of the longitudinal structure 221 on the anti-fracture strength and deformation capacity of the outer shell 1.

[0043] According to an optional embodiment of the present application, there are multiple first ribs 231, and the multiple first ribs 231 are arranged along the second direction; and / or, there are multiple second ribs 232, and the multiple second ribs 232 are arranged along the second direction.

[0044] In this embodiment, the provision of multiple ribs can further enhance the overall strength of the blade structure 100 .

[0045] It should be noted that the number of ribs should not be too many. The specific number of ribs can be determined according to the actual working conditions, as long as it can improve the overall strength of the blade structure 100. Too many ribs will increase the overall weight of the blade structure 100.

[0046] refer to Figure 1 and Figure 2 According to an optional embodiment of the present application, there are two first ribs 231; and / or, there are two second ribs 232.

[0047] In this embodiment, two convex ribs are provided on the inner surface of the first shell 11 and / or the second shell 12. While the overall strength of the fan blade structure 100 can be improved, the overall weight of the fan blade structure 100 will not be too heavy, thereby preventing excessive energy consumption when driving the fan.

[0048] According to an optional embodiment of the present application, a plurality of first convex ribs 231 are evenly spaced along the second direction between the two longitudinal ribs 22; and / or, a plurality of second convex ribs 232 are evenly spaced along the second direction between the two longitudinal ribs 22, such as Figure 1 and Figure 2 shown.

[0049] In this embodiment, the evenly spaced arrangement of multiple ribs can evenly increase the strength of the first shell 11 and / or the second shell 12, thereby preventing the occurrence of uneven strength distribution of the entire shell 1, and thereby improving the service life of the fan blade structure 100 to a certain extent.

[0050] An embodiment of the utility model also provides a fan, including a motor, multiple connecting parts and multiple fan blade structures 100 of any one of the above-mentioned types, and the multiple connecting parts are arranged in a one-to-one correspondence with the multiple fan blade structures 100; in a group of corresponding connecting parts and fan blade structures 100: the first end of the connecting part is connected to the motor, and the second end of the connecting part is connected to the accommodating cavity 13 of the fan blade structure 100.

[0051] In this embodiment, specifically, the motor may include a drive shaft and a turntable, and the turntable rotates with the rotation of the drive shaft. When the fan is assembled, the first end of the connecting piece can be fixedly installed on the turntable of the motor, and the second end of the connecting piece can be fixed to the accommodating cavity 13 by means of screws. Specifically, the second end of the connecting piece is extended into the accommodating cavity 13 of the fan blade structure 100, and the connection between the connecting piece and the fan blade structure 100 is achieved by screwing through the first shell 11, the connecting piece, and the second shell 12.

[0052] Since the reinforcing ribs 2 of the fan blade structure 100 and the cross-sections of the first shell 11 and the second shell 12 form an annular structure, that is, the reinforcing ribs 2 and the part connected to the outer shell 1 form a closed loop structure with no breaks in the middle, which can ensure the overall strength of the fan blade structure 100; in addition, since the longitudinal structure 221 includes at least one arc structure, when the connecting piece is installed in the accommodating cavity 13, the setting of the arc structure can enhance the fracture resistance and deformation capacity of the outer shell 1, and effectively reduce the occurrence of the outer shell 1 being broken due to the installation of the connecting piece.

[0053] Similarly, during assembly, the connector can be installed in an annular structure, that is, the portion of the connector that enters the accommodating cavity 13 is surrounded by reinforcing ribs 2 to further enhance the fracture resistance and deformation capacity when the housing is connected to the connector.

[0054] Therefore, each blade structure 100 of this fan can reduce the occurrence of breakage of the outer shell 1 during assembly; and when the fan is started, since each blade structure 100 of the fan does not need to be thickened, the overall weight of the fan is reduced, and the energy output of the motor is reduced, thereby saving energy.

[0055] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fan blade structure extending along a first direction, characterized in that: include: The housing comprises a first shell and a second shell connected to the first shell, wherein a receiving cavity is formed between the first shell and the second shell; as well as A reinforcing rib is arranged in the accommodating cavity, and the reinforcing rib includes two longitudinal ribs. The two longitudinal ribs are arranged along a second direction and extend along the first direction. The second direction is perpendicular to the first direction. Along the second direction, the cross-section of the two longitudinal ribs and the cross-section of the first shell and the second shell form an annular structure. The cross-section of the longitudinal rib is a longitudinal structure. The two ends of each of the longitudinal structures are respectively connected to the inner surface of the first shell and the inner surface of the second shell, and each of the longitudinal structures includes at least one arc structure.

2. The fan blade structure according to claim 1, characterized in that: The longitudinal structure includes a first arc-shaped structure and a second arc-shaped structure, wherein the first end of the first arc-shaped structure is connected to the inner surface of the first shell, the second end of the first arc-shaped structure is connected to the first end of the second arc-shaped structure, and the second end of the second arc-shaped structure is connected to the inner surface of the second shell.

3. The fan blade structure according to claim 2, characterized in that: The first arc-shaped structure and the second arc-shaped structure are both in the shape of circular arcs, and the curvature of the first arc-shaped structure is the same as the curvature of the second arc-shaped structure.

4. The fan blade structure according to claim 3, characterized in that: The length of the first arc-shaped structure is the same as the length of the second arc-shaped structure.

5. The fan blade structure according to claim 1, characterized in that: The inner surface of the first shell is provided with a first convex rib, and along the second direction, the first convex rib is located between the two longitudinal ribs, the first convex rib is raised relative to the inner surface of the first shell and the first convex rib extends along the first direction; and\or, The inner surface of the second shell is provided with a second convex rib, and along the second direction, the second convex rib is located between the two longitudinal ribs, the second convex rib is raised relative to the inner surface of the second shell and the second convex rib extends along the first direction.

6. The fan blade structure according to claim 5, characterized in that: There are a plurality of first ribs, and the plurality of first ribs are arranged along the second direction; and\or, There are a plurality of the second convex ribs, and the plurality of the second convex ribs are arranged along the second direction.

7. The fan blade structure according to claim 6, characterized in that: There are two first ribs; and\or, The number of the second convex ribs is two.

8. The fan blade structure according to claim 6, characterized in that: A plurality of the first convex ribs are evenly spaced between two of the longitudinal ribs along the second direction; and\or, A plurality of the second convex ribs are evenly spaced apart along the second direction between the two longitudinal ribs.

9. A fan, characterized in that: It comprises a motor, a plurality of connecting members and a plurality of fan blade structures according to any one of claims 1 to 8, wherein the plurality of connecting members are arranged in one-to-one correspondence with the plurality of fan blade structures; In a group of the connecting member and the fan blade structure corresponding to each other: the first end of the connecting member is connected to the motor, and the second end of the connecting member is connected to the accommodating cavity of the fan blade structure.

10. The fan according to claim 9, characterized in that The second end of the connecting member is fixed to the accommodating cavity by means of a screw.

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