Thin ceiling fan

Abstract

The thin ceiling fan comprises a shell, a driving assembly and a plurality of fan blades, the shell comprises an upper shell and a lower shell, the upper shell is provided with an installation part and a supporting part, the supporting part is arranged at the lower end of the installation part, the supporting part is provided with a first annular protruding edge, the lower shell is provided with a second annular protruding edge, the first annular protruding edge is inserted into the second annular protruding edge, and the second annular protruding edge is inserted into the driving assembly. The outer wall of the first annular protruding edge abuts against the inner wall of the second annular protruding edge. The driving assembly comprises a fixing shaft, a stator and a rotor, the fixing shaft sequentially penetrates through the upper shell and the lower shell, the stator and the rotor are both arranged in the mounting part, the stator is fixedly connected to the fixing shaft, the rotor is fixedly connected to the mounting part, and the rotor is rotationally connected with the stator; the fan blades are detachably connected to the upper end face of the supporting part through first fasteners. According to the thin ceiling fan, the axial size can be reduced, the attractiveness and the rotation stability are improved, the fan blades can be conveniently disassembled and assembled, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, and in particular to a thin ceiling fan. Background Technology

[0002] Ceiling fans are common household appliances, mainly consisting of a motor and fan blades. The motor drives the fan blades to rotate, which in turn drives the airflow. However, the large axial dimension of the motor results in an unsightly appearance and unstable rotation of the ceiling fan. Furthermore, the fan blades are mainly connected to the motor through a blade holder, which not only increases the axial dimension of the ceiling fan but also affects the ease of disassembly and assembly of the fan blades, thus reducing the user experience. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a thin ceiling fan that reduces axial dimensions, improves aesthetics and rotational stability, and facilitates the assembly and disassembly of the fan blades, thus enhancing the user experience.

[0004] A thin ceiling fan according to a first aspect of the present invention includes a housing, a drive assembly, and multiple fan blades. The housing includes an upper shell and a lower shell. The upper shell is provided with a mounting portion and a support portion. The support portion is disposed at the lower end of the mounting portion and is provided with a first annular protrusion. The lower shell is provided with a second annular protrusion. The first annular protrusion is inserted into the second annular protrusion, and the outer wall of the first annular protrusion abuts against the inner wall of the second annular protrusion. The drive assembly includes a fixed shaft, a stator, and a rotor. The fixed shaft passes through the upper shell and the lower shell in sequence. The stator and the rotor are both arranged in the mounting portion. The stator is fixedly connected to the fixed shaft, and the rotor is fixedly connected to the mounting portion. The rotor and the stator are rotatably connected. The fan blades are detachably connected to the upper end face of the support portion by a first fastener.

[0005] The thin ceiling fan according to the embodiments of this utility model has at least the following beneficial effects: The housing includes an upper housing and a lower housing. The upper housing is provided with a mounting part and a support part. The stator and rotor are both arranged in the mounting part. By providing a first annular protrusion on the support part and a second annular protrusion on the lower housing, the first annular protrusion is inserted into the second annular protrusion, so that the outer wall of the first annular protrusion and the inner wall of the second annular protrusion abut against each other, so that the upper housing and the lower housing can be stably connected. This improves the positional accuracy of the upper and lower housings, thereby helping to reduce the axial dimension of the housing, improving the aesthetics, and enabling the rotor to rotate smoothly around the stator and the housing to rotate accurately around a fixed axis, thus improving the rotational stability of the housing. In addition, multiple fan blades are detachably connected to the support part by a first fastener, which facilitates the disassembly and assembly of the fan blades. Moreover, the fan blades are arranged on the upper end face of the support part, which can make full use of the axial space of the mounting part, reduce the axial dimension, and improve the user experience.

[0006] According to some embodiments of the present invention, the drive assembly further includes two bearings, which are respectively arranged in the upper shell and the lower shell, and the fixed shaft passes through the two bearings.

[0007] According to some embodiments of the present invention, the support portion is provided with a first connecting portion, the first connecting portion is arranged along the axial direction of the support portion away from the mounting portion, and the first fastener is threadedly connected to the first connecting portion.

[0008] According to some embodiments of the present invention, the housing further includes a plurality of second fasteners, which are inserted into the lower housing and are threadedly connected to the upper housing.

[0009] According to some embodiments of the present invention, the support portion is provided with a second connecting portion, the second connecting portion is arranged along the axial direction of the support portion away from the mounting portion, and the second fastener is threadedly connected to the second connecting portion.

[0010] According to some embodiments of the present invention, each fan blade corresponds to at least two of the first fasteners.

[0011] According to some embodiments of the present invention, the housing further includes a cover body, which covers the lower housing, and the upper housing is provided with a third fastener, which is threadedly connected to the cover body.

[0012] According to some embodiments of the present invention, the cover is provided with a third connecting part, the third connecting part extends along the axial direction of the cover towards the upper shell, the third connecting part passes through the lower shell, and the third fastener is threadedly connected to the third connecting part.

[0013] According to some embodiments of this utility model, the fixed shaft is detachably connected to a connecting plate, and the connecting plate is connected to a lamp body.

[0014] According to some embodiments of the present invention, the lamp body is provided with an air guide plate, one end of the air guide plate is connected to the lamp body, the other end of the air guide plate extends toward the fan blade, and the air guide plate is arranged around the lamp body.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of a thin ceiling fan according to an embodiment of the present utility model;

[0018] Figure 2 A cross-sectional view of a thin ceiling fan according to an embodiment of the present utility model. Figure 1 ;

[0019] Figure 3 for Figure 2 A magnified view of part A;

[0020] Figure 4 for Figure 2 A magnified view of section B;

[0021] Figure 5 A cross-sectional view of a thin ceiling fan according to an embodiment of the present utility model. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the upper shell of the thin ceiling fan according to an embodiment of the present utility model.

[0023] Figure label:

[0024] Housing 100, upper housing 110, mounting part 111, support part 112, first annular protrusion 113, first connecting part 114, second connecting part 115, lower housing 120, second annular protrusion 121, cover 130, third connecting part 131, connecting plate 140, lamp body 141, air guide plate 142;

[0025] Drive assembly 200, fixed shaft 210, stator 220, rotor 230, bearing 240;

[0026] Fan blades 300. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] In related technologies, ceiling fans mainly consist of a motor and fan blades. The motor drives the fan blades to rotate, thereby enabling the fan blades to drive airflow. Existing motors include a housing, stator, rotor, and fixed shaft. The stator and rotor cooperate to drive the housing to rotate on the fixed shaft. However, the fixed shaft has certain geometric deviations, and the axial dimension of the housing is relatively large. This results in inaccurate relative positions of the various parts after the motor is assembled, making the housing prone to rotational deviation on the fixed shaft. This not only affects reliability but also the aesthetics of the ceiling fan.

[0032] Therefore, this utility model proposes a thin ceiling fan that can reduce axial dimensions, improve aesthetics and rotational stability, and facilitate the disassembly and assembly of fan blades, thereby enhancing the user experience.

[0033] Understandably, referring to Figures 1 to 3 ,as well as Figure 6The present invention discloses a thin ceiling fan, comprising a housing 100, a drive assembly 200, and multiple fan blades 300. The housing 100 includes an upper shell 110 and a lower shell 120. The upper shell 110 is provided with a mounting part 111 and a support part 112. The support part 112 is located at the lower end of the mounting part 111 and is provided with a first annular flange 113. The lower shell 120 is provided with a second annular flange 121. The first annular flange 113 is inserted into the second annular flange 121, and the outer wall of the first annular flange 113 abuts against the second annular flange 121. The inner wall of the annular flange 121; the drive assembly 200 includes a fixed shaft 210, a stator 220 and a rotor 230. The fixed shaft 210 passes through the upper shell 110 and the lower shell 120 in sequence. The stator 220 and the rotor 230 are both arranged in the mounting part 111. The stator 220 is fixedly connected to the fixed shaft 210, and the rotor 230 is fixedly connected to the mounting part 111. The rotor 230 and the stator 220 are rotatably connected. The fan blade 300 is detachably connected to the upper end face of the support part 112 by a first fastener (not shown in the figure).

[0034] The housing 100 includes an upper housing 110 and a lower housing 120. The upper housing 110 is provided with a mounting part 111 and a support part 112. The stator 220 and the rotor 230 are both arranged in the mounting part 111. By providing a first annular protrusion 113 on the support part 112 and a second annular protrusion 121 on the lower housing 120, the first annular protrusion 113 is inserted into the second annular protrusion 121, so that the outer wall of the first annular protrusion 113 and the inner wall of the second annular protrusion 121 abut against each other, so that the upper housing 110 and the lower housing 120 can be stably connected. This increases the contact area between the upper housing 110 and the lower housing 120, improves the positional accuracy of the upper housing 110 and the lower housing 120, and helps to reduce the axial dimension of the housing 100, improves the aesthetics, and allows the rotor 230 to rotate smoothly around the stator 220, and allows the housing 100 to rotate accurately around the fixed shaft 210, reducing the rotational deviation of the housing 100 and improving the rotational stability of the housing 100.

[0035] In addition, multiple fan blades 300 are detachably connected to the support part 112 by the first fastener, which facilitates the assembly and disassembly of the fan blades 300. Moreover, the fan blades 300 are arranged on the upper end face of the support part 112, which can make full use of the axial space of the mounting part 111, reduce the axial dimension of the thin ceiling fan, and improve the user experience.

[0036] It should be noted that by setting the first annular protrusion 113 to be inserted into the second annular protrusion 121, the first annular protrusion 113 and the second annular protrusion 121 can cooperate to position the axial position of the upper shell 110 and the lower shell 120. Moreover, the outer wall of the first annular protrusion 113 can abut against the inner wall of the second annular protrusion 121, which can position the radial position of the upper shell 110 and the lower shell 120, reducing the possibility of relative movement between the upper shell 110 and the lower shell 120, so that the upper shell 110 and the lower shell 120 can be accurately connected. This helps to reduce the axial dimension of the upper shell 110 and the lower shell 120, reduce the influence of the axial deviation of the fixed shaft 210 on the position of the shell 100, and enable the shell 100 to be accurately arranged on the fixed shaft 210. This not only reduces the axial dimension of the shell 100 and improves its aesthetics, but also improves the rotational stability of the shell 100.

[0037] Understandably, referring to Figure 2 The drive assembly 200 also includes two bearings 240, which are respectively arranged in the upper housing 110 and the lower housing 120, with a fixed shaft 210 passing through the two bearings 240. The arrangement of the two bearings 240 in the upper housing 110 and the lower housing 120, along with the fixed shaft 210 passing through them, limits the radial runout and axial movement of the housing 100 during operation. This ensures that the housing 100 maintains a precise axial and radial position, allowing the rotor 230 to rotate smoothly on the stator 220. This prevents the rotor 230 from experiencing rotational jamming or vibration due to positional deviations in the housing 100, and ensures stable rotation of the fan blades 300, improving the smoothness and precision of the ceiling fan's operation.

[0038] In addition, by engaging the first annular flange 113 and the second annular flange 121, the upper shell 110 and the lower shell 120 can be accurately connected, thereby reducing the axial dimension of the shell 100. This shortens the distance between the two bearings 240, reduces the influence of the geometric deviation of the fixed shaft 210 on the position of the shell 100, and improves the rotational stability of the shell 100.

[0039] Understandably, referring to Figure 1 and Figure 6The support portion 112 is provided with a first connecting portion 114, which is arranged axially away from the mounting portion 111. A first fastener is threadedly connected to the first connecting portion 114. The first connecting portion 114 is provided on the support portion 112 and extends axially away from the mounting portion 111. The first fastener passes through the fan blade 300 and is threadedly connected to the first connecting portion 114, so that the first fastener can lock the fan blade 300 onto the support portion 112. By providing the first connecting portion 114, the contact area with the first fastener can be increased, thereby improving the support effect on the first fastener, effectively reducing the possibility of loosening of the first fastener connection, and improving the connection strength between the support portion 112 and the first fastener, reducing the possibility of damage to the support portion 112 and improving reliability.

[0040] It should be noted that the first fastener can be a bolt, screw, etc., which will not be elaborated here.

[0041] Understandably, referring to Figure 2 and Figure 6 The housing 100 also includes multiple second fasteners (not shown in the figures). These second fasteners pass through the lower housing 120 and are threadedly connected to the upper housing 110. The multiple second fasteners passing through the lower housing 120 and threadedly connected to the upper housing 110 enhance the connection strength and stability between the upper housing 110 and the lower housing 120. Furthermore, they evenly distribute the stress at the connection point, preventing localized stress concentration that could lead to deformation or damage to the connection, thus further extending the service life of the housing 100 and improving its reliability.

[0042] It should be noted that the second fastener can be a bolt, screw, etc., which will not be elaborated here.

[0043] Specifically, refer to Figure 2 , Figure 3 and Figure 6 The support portion 112 is provided with a second connecting portion 115, which is arranged axially away from the mounting portion 111 along the support portion 112. The second fastener is threadedly connected to the second connecting portion 115. The second connecting portion 115 is located on the side of the support portion 112 away from the mounting portion 111 and extends axially away from the mounting portion 111. By providing a threaded connection of the second fastener to the second connecting portion 115, the contact area with the support portion 112 can be increased, effectively dispersing the stress borne by the support portion 112, enhancing the structural strength of the upper shell 110, reducing the possibility of damage to the upper shell 110, and improving reliability.

[0044] Understandably, referring to Figure 1Each fan blade 300 corresponds to at least two first fasteners. By setting each fan blade 300 to at least two first fasteners, the connection stability and reliability between the fan blade 300 and the support part 112 are enhanced. This enables multi-point support and fixation, evenly distributing the force to multiple connection points, reducing the stress on each connection point, effectively preventing connection failure caused by excessive local stress, ensuring that the fan blade 300 remains stable during high-speed rotation, improving reliability, and also reducing vibration and noise, thus enhancing the user experience.

[0045] Understandably, referring to Figure 2 and Figure 4 The housing 100 also includes a cover 130, which covers the lower housing 120. A third fastener (not shown in the attached drawings) passes through the upper housing 110 and is threadedly connected to the cover 130. The cover 130 covers the lower housing 120, and the third fastener secures the cover 130 to the lower housing 120, allowing the cover 130 to completely enclose the lower housing 120 and prevent the connection between the upper housing 110 and the lower housing 120 from being exposed. This improves the aesthetics of the housing 100. Furthermore, the cover 130 effectively blocks external dust, moisture, and debris from entering the housing 100, preventing damage to the drive assembly 200 and extending the ceiling fan's lifespan and improving its reliability.

[0046] It should be noted that the third fastener can be a bolt, screw, etc., which will not be elaborated here.

[0047] Specifically, refer to Figure 2 and Figure 4 The cover 130 is provided with a third connecting part 131, which extends along the axial direction of the cover 130 towards the upper shell 110. The third connecting part 131 passes through the lower shell 120, and a third fastener is threadedly connected to the third connecting part 131. The third connecting part 131 is provided on the cover 130. By providing the third connecting part 131 to pass through the lower shell 120, the lower shell 120 can be accurately positioned together with the cover 130. Moreover, the third fastener passes through the upper shell 110 and is threadedly connected to the third connecting part 131. The cooperation of the third fastener and the third connecting part 131 can position the upper shell 110 and the lower shell 120 together, thereby enabling the upper shell 110, the lower shell 120, and the cover 130 to be accurately connected. This not only ensures accurate positioning of the upper shell 110 and the lower shell 120 but also stabilizes the cover 130 within the lower shell 120, helping to reduce the axial dimension of the shell 100 and improve its aesthetics.

[0048] Understandably, referring to Figure 5A connecting plate 140 is detachably connected to the fixed shaft 210, and a lamp body 141 is connected to the connecting plate 140. The connecting plate 140 is detachably connected to the fixed shaft 210, and the lamp body 141 is connected to the connecting plate 140, so that the lamp body 141 can be easily installed on a slim ceiling fan, meeting the user's multifunctional needs, reducing the need for separate installation of indoor lighting fixtures, saving space and installation costs, and improving the user experience.

[0049] It should be noted that the connecting plate 140 can be connected to the fixed shaft 210 by means of threaded connection, fastener connection, etc., which will not be described in detail here.

[0050] Specifically, refer to Figure 5 The lamp body 141 is provided with an air guide plate 142. One end of the air guide plate 142 is connected to the lamp body 141, and the other end of the air guide plate 142 extends toward the fan blade 300. The air guide plate 142 is arranged around the lamp body 141. By arranging the air guide plate 142 around the lamp body 141, the air guide plate 142 can guide and concentrate the airflow, so that the airflow generated by the rotation of the fan blade 300 can be blown toward the lamp body 141. This can accelerate the heat dissipation of the lamp body 141, reduce heat accumulation, help extend the service life of the lamp body 141, and improve reliability.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A slim ceiling fan, characterized in that, include: The housing includes an upper shell and a lower shell. The upper shell is provided with a mounting part and a support part. The support part is provided at the lower end of the mounting part and is provided with a first annular protrusion. The lower shell is provided with a second annular protrusion. The first annular protrusion is inserted into the second annular protrusion, and the outer wall of the first annular protrusion abuts against the inner wall of the second annular protrusion. A drive assembly includes a fixed shaft, a stator, and a rotor. The fixed shaft passes through the upper shell and the lower shell in sequence. The stator and the rotor are both arranged in the mounting part. The stator is fixedly connected to the fixed shaft, and the rotor is fixedly connected to the mounting part. The rotor and the stator are rotatably connected. Multiple fan blades are detachably connected to the upper surface of the support via a first fastener.

2. The thin ceiling fan according to claim 1, characterized in that, The drive assembly also includes two bearings, which are respectively arranged in the upper housing and the lower housing, and the fixed shaft passes through the two bearings.

3. The thin ceiling fan according to claim 1, characterized in that, The support portion is provided with a first connecting portion, which is arranged along the axial direction of the support portion away from the mounting portion, and the first fastener is threadedly connected to the first connecting portion.

4. The thin ceiling fan according to claim 1, characterized in that, The housing also includes a plurality of second fasteners, which are inserted into the lower housing and are threadedly connected to the upper housing.

5. The thin ceiling fan according to claim 4, characterized in that, The support portion is provided with a second connecting portion, which is arranged along the axial direction of the support portion away from the mounting portion, and the second fastener is threadedly connected to the second connecting portion.

6. The thin ceiling fan according to claim 1, characterized in that, Each of the fan blades corresponds to at least two of the first fasteners.

7. The thin ceiling fan according to claim 1, characterized in that, The housing also includes a cover that covers the lower housing, and the upper housing is provided with a third fastener that is threadedly connected to the cover.

8. The thin ceiling fan according to claim 7, characterized in that, The cover is provided with a third connecting part, which extends along the axial direction of the cover towards the upper shell. The third connecting part passes through the lower shell, and the third fastener is threadedly connected to the third connecting part.

9. The thin ceiling fan according to claim 1, characterized in that, The fixed shaft is detachably connected to a connecting plate, and the connecting plate is connected to the lamp body.

10. The thin ceiling fan according to claim 9, characterized in that, The lamp body is provided with an air guide plate, one end of which is connected to the lamp body, and the other end of which extends toward the fan blades, and the air guide plate is arranged around the lamp body.

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