Fan assembly and range hood

Abstract

This utility model provides a fan assembly and a range hood. The fan assembly includes a fan and a bracket assembly. The fan has a volute and an external rotor motor. The volute forms a mounting cavity, and the external rotor motor is at least partially located within the mounting cavity. The bracket assembly has a first bracket and a second bracket, which are staggered and overlapped. The first bracket has a first mating part, and the second bracket has a second mating part. The volute has an air inlet side, and the ends of both the first and second brackets are connected to the air inlet side. One end of the central shaft of the external rotor motor passes through the first and second mating parts sequentially to connect to the bracket assembly. This effectively improves the robustness and reliability of the connection between the external rotor motor and the volute. Furthermore, the simple structure of the bracket assembly effectively ensures the air intake efficiency of the external rotor motor. Moreover, the assembly process of the bracket assembly is simple, effectively improving the convenience and efficiency of fan assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen utensils, specifically to a fan assembly and a range hood. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. It can quickly remove the exhaust gas produced by the stove and the oil fumes generated during cooking and exhaust them outdoors, thereby purifying the kitchen environment.

[0003] Current range hoods can use an external rotor motor as the power output component. Specifically, a complex support structure can be used to connect the external rotor motor to the volute, thereby ensuring the connection strength between the two.

[0004] However, complex support structures often occupy a large area of ​​the airflow channel on the air intake side of the external rotor motor, thus significantly affecting the air intake efficiency of the external rotor motor. Furthermore, the complex support structure requires multiple assembly steps during assembly, making the process cumbersome. This greatly reduces the convenience and efficiency of assembling the range hood when repairs or replacement of the external rotor motor are needed. Utility Model Content

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a wind turbine assembly is provided, the technical solution of which is as follows.

[0006] The fan assembly includes a fan and a support assembly. The fan has a volute and an external rotor motor. The volute encloses a mounting cavity, and the external rotor motor is at least partially located within the mounting cavity. The support assembly has a first support and a second support, which are staggered and overlapped. The first support has a first mating portion, and the second support has a second mating portion. The volute has an air inlet side, and the ends of both the first and second supports are connected to the air inlet side. One end of the central shaft of the external rotor motor passes sequentially through the first and second mating portions to connect to the support assembly.

[0007] In this invention, one end of the central shaft of the external rotor motor is connected to the volute via a first bracket and a second bracket. Because the first and second brackets are staggered, they form a frame structure, effectively improving the robustness and reliability of the connection between the external rotor motor and the volute. Furthermore, the simple structure of the bracket assembly occupies a small area of ​​the airflow channel on the air inlet side of the external rotor motor, effectively ensuring the air intake efficiency of the external rotor motor. Moreover, the assembly process of the bracket assembly is simple, effectively improving the convenience and efficiency of fan assembly when maintenance or replacement of the external rotor motor is required.

[0008] For example, an air guide ring is provided on the air inlet side, and the ends of the first bracket and the second bracket are both connected to the air guide ring. In this way, the air guide ring can be installed on the air inlet side of the volute, thereby improving the air intake efficiency of the external rotor motor. Furthermore, when assembling the fan assembly, the first and second brackets can be first installed on the air guide ring to pre-assemble the bracket assembly and the air guide ring into a single module, and then the single module can be installed on the volute, effectively improving the convenience and efficiency of fan assembly.

[0009] For example, the first bracket has at least two first support members, one end of which is connected to a first mating part and the other end to a guide ring; the second bracket has at least two second support members, one end of which is connected to a second mating part and the other end to a guide ring. Thus, the first and second mating parts can be connected to one end of the central shaft, and the first and second support members can be connected to the guide ring, thereby simplifying the structure of the first and second brackets. This also allows the vibrations generated by the external rotor motor during operation to be evenly transmitted to the guide ring through the first and second brackets, and then from the guide ring to the volute. Furthermore, the first and second support members can act on the guide ring through multiple connection points, effectively improving the overall robustness and stability of the fan assembly.

[0010] For example, a first support member has a first foot formed at one end connected to the air guide ring, and the first foot makes surface contact with the air guide ring; a second support member has a second foot formed at one end connected to the air guide ring, and the second foot makes surface contact with the air guide ring. Thus, the first foot and the second foot can respectively make surface contact with the air guide ring, thereby increasing the contact area between the support assembly and the air guide ring, and improving the stability of the connection between the support assembly and the air guide ring.

[0011] For example, the first foot and the second foot are evenly spaced along the circumference of the air guide ring. In this way, the first foot and the second foot, which are evenly spaced along the circumference of the air guide ring, can ensure that the air guide ring is subjected to uniform force, avoid the air guide ring structure damage caused by concentrated force, and effectively improve the reliability of the fan.

[0012] For example, the first mating part is provided with a first through hole for the central shaft to pass through, and the first mating part includes a first plate part and a first boss part protruding on the first plate part, and the first through hole passes through the first boss part and the first plate part; the second mating part is provided with a second through hole for the central shaft to pass through, and the second mating part includes a second plate part and a second boss part protruding on the second plate part, and the second through hole passes through the second boss part and the second plate part. Thus, the first through hole can penetrate the first boss portion to form a hollow cavity within the first boss portion. Similarly, the second through hole can penetrate the second boss portion to form a hollow cavity within the second boss portion. When the central shaft passes through the first through hole to the first plate portion and through the second through hole to the second plate portion, the inner wall surface of the hollow cavity of the first through hole and the inner wall surface of the hollow cavity of the second through hole can respectively fit against the outer wall surface of the central shaft, thereby increasing the contact area between the support assembly and the central shaft, thereby effectively ensuring the connection strength between the support assembly and the central shaft.

[0013] For example, the wall of the first through hole has a first limiting portion, the wall of the second through hole has a second limiting portion, and the central shaft has a first abutting portion that abuts against the first limiting portion and a second abutting portion that abuts against the second limiting portion. Thus, through the cooperation between the first limiting portion and the first abutting portion, and the cooperation between the second limiting portion and the second abutting portion, not only can the displacement of the first and second supports be limited, but the connection strength between the central shaft and the support assembly can also be improved, preventing accidental rotation of the central shaft and ensuring the stability of the external rotor motor operation.

[0014] For example, a first reinforcing portion is formed on the first support member, and a second reinforcing portion is formed on the second support member. Thus, a mechanical device can be used to apply force to the first and second support members to form the first reinforcing portion on the first support member and the second reinforcing portion on the second support member, effectively improving the structural strength of the first and second support members, thereby further enhancing the stability and robustness of the wind turbine assembly, as well as its safety in use.

[0015] For example, the external rotor motor has a rotating housing that rotates about a central axis. The rotating housing has an outer end face, and a fastener is connected to the central axis. The fastener abuts against a second mating part away from the outer end face and locks the second bracket to the central axis. In this way, after the central axis is inserted into the bracket assembly, the fastener can be used to lock the second bracket to the central axis, so as to avoid the vibration generated by the rotating housing during rotation or the second bracket accidentally falling off due to external force, effectively improving the reliability and safety of the fan assembly.

[0016] For example, the first bracket has two first support members, and the second bracket has two second support members, with the first and second brackets arranged in a cross shape. In this way, the cross-shaped first and second brackets can evenly distribute the vibrations generated by the rotating shell onto the air guide ring, preventing deformation or damage to the air guide ring due to excessive localized stress. Furthermore, the cross-shaped first and second brackets can significantly improve the torsional resistance of the bracket assembly, thereby enhancing the overall stability of the bracket assembly.

[0017] For example, at least one end of the central shaft is connected to a support assembly. In this way, by connecting at least one end of the central shaft to the volute, the central shaft can be firmly anchored to the volute, effectively preventing radial sway of the rotating housing during rotation and effectively improving the overall robustness of the fan assembly.

[0018] According to another aspect of the present invention, a range hood is also provided, including a smoke collection hood, a fan cabinet and a fan assembly as described above, wherein a receiving cavity is formed inside the fan cabinet, the fan assembly is disposed inside the receiving cavity, and the smoke collection hood is disposed below the fan cabinet.

[0019] The range hood of this utility model includes the fan assembly as described above. Since the fan assembly has the beneficial effects described above, the range hood including the fan assembly as described above will necessarily have the beneficial effects described above.

[0020] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,

[0022] Figure 1 A front view of a fan assembly according to an exemplary embodiment of the present invention is shown;

[0023] Figure 2 A cross-sectional view of a fan assembly according to an exemplary embodiment of the present invention is shown;

[0024] Figure 3 An exploded view of a wind turbine assembly according to an exemplary embodiment of the present invention is shown;

[0025] Figure 4 A perspective view of a first bracket according to an exemplary embodiment of the present invention is shown;

[0026] Figure 5 A perspective view of a second bracket according to an exemplary embodiment of the present invention is shown;

[0027] Figure 6 A front view of an air guide ring according to an exemplary embodiment of the present invention is shown;

[0028] Figure 7 A perspective view shows a support assembly connected to an air guide ring according to an exemplary embodiment of the present invention;

[0029] Figure 8 A perspective view of the central axis according to an exemplary embodiment of the present invention is shown;

[0030] Figure 9 A cross-sectional view of the central axis according to an exemplary embodiment of the present invention is shown.

[0031] The components indicated by the reference numerals in the figures are as follows:

[0032] 1. Fan; 11. Volute; 111. Mounting cavity; 112. Air inlet side; 113. Air guide ring; 1131. Mounting position; 12. External rotor motor; 121. Central shaft; 1211. First abutment part; 1212. Second abutment part; 122. Rotating outer shell; 1221. Outer end face; 2. Support assembly; 21. First support; 211. First mating part; 2111. First plate part; 2112. First boss part; 2 113. First through hole; 2114. First limiting part; 212. First support member; 2121. First reinforcing part; 213. First foot; 22. Second bracket; 221. Second mating part; 2211. Second plate part; 2212. Second boss part; 2213. Second through hole; 2214. Second limiting part; 222. Second support member; 2221. Second reinforcing part; 223. Second foot; 3. Fastener. Detailed Implementation

[0033] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0034] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0035] One embodiment of this utility model provides a fan assembly that, while ensuring overall robustness, effectively guarantees the air intake efficiency of the external rotor motor 12, as well as ease and efficiency of assembly. The following will describe in detail a fan assembly according to an embodiment of this utility model with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 As shown, the fan assembly includes a fan 1 and a support assembly 2. The fan 1 has a volute 11 and an external rotor motor 12. The volute 11 encloses a mounting cavity 111, and the external rotor motor 12 is at least partially located within the mounting cavity 111. The support assembly 2 has a first support 21 and a second support 22, which are staggered and overlapped. The first support 21 has a first mating portion 211, and the second support 22 has a second mating portion 221. The volute 11 has an air inlet side 112. The ends of the first support 21 and the second support 22 are both connected to the air inlet side 112. One end of the central shaft 121 of the external rotor motor 12 passes through the first mating portion 211 and the second mating portion 221 in sequence to connect to the support assembly 2.

[0037] The external rotor motor 12 can be embedded in the mounting cavity 111 of the volute 11. When the external rotor motor 12 rotates, it can draw gas into the volute 11 and discharge it through the air outlet of the volute 11.

[0038] The support assembly 2 may include independently configured first support 21 and second support 22, which are staggered and stacked. The ends of the first support 21 and the second support 22 can be connected to the volute 11 respectively, thus enabling multi-point connection between the external rotor motor 12 and the volute 11. Furthermore, one end of the central shaft 121 of the external rotor motor 12 can sequentially pass through the first mating part 211 of the first support 21 and the second mating part 221 of the second support 22, allowing the first support 21 and the second support 22 to apply tensile forces in different directions to the volute 11, effectively ensuring the overall robustness of the fan assembly. Moreover, the simple structure of the first support 21 and the second support 22 effectively simplifies the connection structure and volume of the support assembly 2, thereby reducing the encroachment of the support assembly 2 on the air inlet side 112 of the volute 11.

[0039] In this invention, one end of the central shaft 121 of the external rotor motor 12 can be connected to the volute 11 via a first bracket 21 and a second bracket 22. Because the first bracket 21 and the second bracket 22 are staggered, they form a frame structure, effectively improving the robustness and reliability of the connection between the external rotor motor 12 and the volute 11. Furthermore, due to the simple structure of the bracket assembly 2, it occupies a small area of ​​the airflow channel on the air inlet side 112 of the external rotor motor 12, effectively ensuring the air intake efficiency of the external rotor motor 12. Moreover, the bracket assembly 2 is easy to assemble, effectively improving the convenience and efficiency of the fan assembly when maintenance or replacement of the external rotor motor 12 is required.

[0040] In some embodiments, such as Figures 1 to 3 As shown, an air guide ring 113 is provided on the air inlet side 112, and the ends of the first bracket 21 and the second bracket 22 are both connected to the air guide ring 113.

[0041] The aforementioned air guide ring 113 can be positioned on the air inlet side 112 of the volute 11. The air guide ring 113 effectively guides the flow direction of fumes and air. When the fan assembly is used in a range hood, the air guide ring 113 can quickly and orderly guide the fumes into the mounting cavity 111 of the volute 11, preventing turbulent eddies at the range hood inlet and thus improving the fume extraction efficiency. The air guide ring 113 can also reduce the resistance of fumes entering the range hood, allowing the fumes to be drawn more smoothly into the mounting cavity 111.

[0042] The air guide ring 113 may have connecting holes for screws or bolts, which can be used to firmly connect the air guide ring 113 to the volute 11.

[0043] In the above embodiments, an air guide ring 113 can be installed on the air inlet side 112 of the volute 11, thereby improving the air intake efficiency of the external rotor motor 12. Furthermore, when assembling the fan assembly, the first bracket 21 and the second bracket 22 can be first installed on the air guide ring 113 to pre-assemble the bracket assembly 2 and the air guide ring 113 into an integral module, and then the integral module can be installed on the volute 11, effectively improving the convenience and efficiency of fan assembly.

[0044] In some embodiments, such as Figure 4 and Figure 5 As shown, the first bracket 21 has at least two first support members 212, one end of the first support member 212 is connected to the first mating part 211, and the other end is connected to the air guide ring 113; the second bracket 22 has at least two second support members 222, one end of the second support member 222 is connected to the second mating part 221, and the other end is connected to the air guide ring 113.

[0045] The first mating part 211 can be plate-shaped, and a first support member 212 can be provided along the outer edge of the plate-shaped first mating part 211. The first mating part 211 and the first support member 212 can be detachably connected or integrally formed. The detachable connection can include plug-in connection or adhesive connection, etc., and this application does not make specific limitations in this regard. Similarly, the second mating part 221 can be plate-shaped, and a second support member 222 can be provided along the outer edge of the plate-shaped second mating part 221. The second mating part 221 and the second support member 222 can be detachably connected or integrally formed. The detachable connection can include plug-in connection or adhesive connection, etc., and this application does not make specific limitations in this regard.

[0046] The number of first support members 212 and second support members 222 can both be multiple. It is understood that a larger number of first support members 212 and second support members 222 results in more connection points between the bracket assembly 2 and the volute 11, thus strengthening the connection between the outer rotor motor 12 and the volute 11. However, the number of first support members 212 and second support members 222 should also be avoided, as this would occupy a larger area of ​​the airflow channel on the air inlet side 112, thereby affecting the air intake efficiency of the outer rotor motor 12.

[0047] In the above embodiment, the first mating part 211 and the second mating part 221 can be connected to one end of the central shaft 121, and the first support member 212 and the second support member 222 can be connected to the air guide ring 113, thereby simplifying the structure of the first bracket 21 and the second bracket 22, and enabling the vibration generated by the external rotor motor 12 during operation to be evenly transmitted to the air guide ring 113 through the first bracket 21 and the second bracket 22, and then transmitted to the volute 11 by the air guide ring 11. Furthermore, the first support member 212 and the second support member 222 can act on the air guide ring 113 through multiple connection points, effectively improving the overall robustness and stability of the fan assembly.

[0048] In some embodiments, such as Figures 4 to 7 As shown, the first support member 212 is connected to one end of the air guide ring 113 and forms a first foot 213, which makes surface contact with the air guide ring 113; the second support member 222 is connected to one end of the air guide ring 113 and forms a second foot 223, which makes surface contact with the air guide ring 113.

[0049] The air guide ring 113 can have mounting positions 1131 that are adapted to the first foot 213 and the second foot 223. The first foot 213 and the second foot 223 can both be plate-shaped. The plate-shaped first foot 213 and the second foot 223 can fit tightly with the mounting positions 1131 on the air guide ring 113 and form surface contact.

[0050] The first foot 213 and the second foot 223 may each have connecting holes for screws or bolts, and the first foot 213 and the second foot 223 may be firmly connected to the air guide ring 113 by screws or bolts.

[0051] In the above embodiment, the first foot 213 and the second foot 223 can respectively form surface contact with the air guide ring 113, which can increase the contact area between the bracket assembly 2 and the air guide ring 113, thereby improving the stability of the connection between the bracket assembly 2 and the air guide ring 113.

[0052] In some embodiments, such as Figure 7 As shown, the first foot 213 and the second foot 223 are evenly spaced along the circumference of the air guide ring 113.

[0053] In the above embodiment, the first foot 213 and the second foot 223, which are evenly spaced along the circumference of the air guide ring 113, can ensure that the air guide ring 113 is subjected to uniform force, avoid the air guide ring 113 from being damaged due to concentrated force, and effectively improve the reliability of the fan 1.

[0054] In some embodiments, such as Figure 4 and Figure 5 As shown, the first mating part 211 is provided with a first through hole 2113 for the central shaft 121 to pass through, and the first mating part 211 includes a first plate part 2111 and a first boss part 2112 protruding from the first plate part 2111. The first through hole 2113 passes through the first boss part 2112 and the first plate part 2111. The second mating part 221 is provided with a second through hole 2213 for the central shaft 121 to pass through, and the second mating part 221 includes a second plate part 2211 and a second boss part 2212 protruding from the second plate part 2211. The second through hole 2213 passes through the second boss part 2212 and the second plate part 2211.

[0055] The inner contours of the first through hole 2113 and the second through hole 2213 can be adapted to the outer contours of the central shaft 121, so that the central shaft 121 can be securely inserted into the first through hole 2113 and the second through hole 2213.

[0056] In the above embodiment, the first through hole 2113 can penetrate the first boss portion 2112 to form a hollow cavity in the first boss portion 2112. Similarly, the second through hole 2213 can penetrate the second boss portion 2212 to form a hollow cavity in the second boss portion 2212. When the central shaft 121 passes through the first through hole 2113 to the first plate portion 2111 and through the second through hole 2213 to the second plate portion 2211, the inner wall surface of the hollow cavity of the first through hole 2113 and the inner wall surface of the hollow cavity of the second through hole 2213 can respectively fit against the outer wall surface of the central shaft 121, thereby increasing the contact area between the support assembly 2 and the central shaft 121, thereby effectively ensuring the connection strength between the support assembly 2 and the central shaft 121.

[0057] In some embodiments, such as Figure 4 , Figure 5 , Figure 8 and Figure 9 As shown, the wall of the first through hole 2113 has a first limiting portion 2114, the wall of the second through hole 2213 has a second limiting portion 2214, and the central shaft 121 has a first abutting portion 1211 that abuts against the first limiting portion 2114 and a second abutting portion 1212 that abuts against the second limiting portion 2214.

[0058] The number of first limiting portions 2114 can be multiple, and multiple first limiting portions 2114 can be formed at intervals on the hole wall of the first through hole 2113. The outer wall surface of the central shaft 121 can be formed with multiple first abutting portions 1211 corresponding to the multiple first limiting portions 2114. Similarly, the number of second limiting portions 2214 can be multiple, and multiple second limiting portions 2214 can be formed at intervals on the hole wall of the second through hole 2213. The outer wall surface of the central shaft 121 can be formed with multiple second abutting portions 1212 corresponding to the multiple second limiting portions 2214.

[0059] When the central shaft 121 is sequentially inserted into the first through hole 2113 and the second through hole 2213, the first limiting part 2114 can abut against the first abutting part 1211, thereby limiting the movement of the first bracket 21 towards the mounting cavity 111. The second limiting part 2214 can abut against the second abutting part 1212, thereby limiting the movement of the second bracket 22 towards the mounting cavity 111. Furthermore, this increases the contact area between the central shaft 121 and the bracket assembly 2, thereby improving the strength and reliability of the connection between the central shaft 121 and the bracket assembly 2, and preventing the connection between the bracket assembly 2 and the air guide ring 113 from being affected by the rotation of the central shaft 121 around its circumference.

[0060] In the above embodiments, the cooperation between the first limiting part 2114 and the first abutting part 1211, and the cooperation between the second limiting part 2214 and the second abutting part 1212, can not only limit the displacement of the first bracket 21 and the second bracket 22, but also improve the connection strength between the central shaft 121 and the bracket assembly 2, avoid the unexpected rotation of the central shaft 121, and ensure the stability of the operation of the external rotor motor 12.

[0061] In some embodiments, such as Figure 4 and Figure 5 As shown, a first reinforcing part 2121 is formed on the first support member 212, and a second reinforcing part 2221 is formed on the second support member 222.

[0062] In the above embodiments, mechanical equipment can be used to apply force to the first support member 212 and the second support member 222, so that a first reinforcing part 2121 is formed on the first support member 212 and a second reinforcing part 2221 is formed on the second support member 222, which effectively improves the structural strength of the first support member 212 and the second support member 222, thereby further improving the stability and robustness of the wind turbine assembly and the safety of its use.

[0063] In some embodiments, such as Figure 2 and Figure 3 As shown, the external rotor motor 12 has a rotating housing 122 that rotates around a central shaft 121. The rotating housing 122 has an outer end face 1221. A fastener 3 is connected to the central shaft 121. The fastener 3 abuts against the second mating part 221 away from the outer end face 1221 and locks the second bracket 22 to the central shaft 121.

[0064] The fastener 3 can be a nut. The end of the central shaft 121 away from the mounting cavity 111 can be formed with a thread that matches the nut. Through the threaded connection between the fastener 3 and the central shaft 121, the bracket assembly 2 can be prevented from accidentally falling off due to force.

[0065] In the above embodiment, after the central shaft 121 is inserted into the bracket assembly 2, the second bracket 22 can be locked onto the central shaft 121 using the fastener 3, so as to avoid the vibration generated when the rotating housing 122 rotates or the second bracket 22 accidentally falling off due to external force, which effectively improves the reliability and safety of the wind turbine assembly.

[0066] In some embodiments, such as Figure 7 As shown, the first bracket 21 has two first support members 212, and the second bracket 22 has two second support members 222. The first bracket 21 and the second bracket 22 are arranged in a cross shape.

[0067] Two first support members 212 can be arranged on two opposite sides of the first mating part 211 along the circumference of the first mating part 211. Similarly, two second support members 222 can be arranged on two opposite sides of the second mating part 221 along the circumference of the second mating part 221.

[0068] like Figure 7 As shown, the projection of the first support 21 onto the plane where the air guide ring 113 is located intersects the projection of the second support 22 onto the plane where the air guide ring 113 is located. It can be understood that the first support 21 and the second support 22 are not directly connected, but are both connected to the air guide ring 113.

[0069] like Figure 4 As shown, two first support members 212 can extend radially outward from the outer edge of the first mating part 211 and toward the second bracket 22, thereby constructing the first bracket 21 as an arched structure. The arched structure of the first bracket 21 can have good load-bearing capacity and stability. Specifically, as shown... Figure 7 As shown, when the bracket assembly 2 is installed on the air guide ring 113, the plane where the second support member 222 is located can be parallel to the plane where the air guide ring 113 is located, and the plane where the first support member 212 is located can form a preset angle with the plane where the air guide ring 113 is located.

[0070] In the above embodiment, the cross-shaped first bracket 21 and second bracket 22 can evenly distribute the vibration generated by the rotating outer shell 122 onto the air guide ring 113, avoiding deformation or damage to the air guide ring 113 due to excessive local stress. Furthermore, the cross-shaped first bracket 21 and second bracket 22 can significantly improve the torsional resistance of the bracket assembly 2, thereby enhancing the overall stability of the bracket assembly 2.

[0071] In some embodiments, at least one end of the central shaft 121 is connected to the support assembly 2.

[0072] For example, there can be two support components 2, and the two ends of the central shaft 121 can be connected to the two support components 2 respectively, so as to connect the outer rotor motor 12 to the two side walls of the volute 11. This avoids the centrifugal force generated by the rotating outer shell 122 when it rotates when the central shaft 121 is connected to only one side wall of the volute 11, which would affect the stability of the connection between the central shaft 121 and the volute 11.

[0073] In the above embodiments, connecting at least one end of the central shaft 121 to the volute 11 can firmly anchor the central shaft 121 to the volute 11, effectively preventing radial sway of the rotating housing 122 during rotation and effectively improving the overall robustness of the fan assembly.

[0074] According to another aspect of the present invention, a range hood is also provided, including a smoke collection hood, a fan cabinet and a fan assembly as described above, wherein a receiving cavity is formed inside the fan cabinet, the fan assembly is disposed inside the receiving cavity, and the smoke collection hood is disposed below the fan cabinet.

[0075] The fume hood can be connected to the air handling unit. When the external rotor motor 12 rotates, it can create a negative pressure in the receiving cavity, thereby drawing the oil fumes from the external environment into the receiving cavity through the fume hood, and then allowing the oil fumes in the receiving cavity to enter the volute 11 and be discharged through the air outlet of the volute 11.

[0076] The range hood of this utility model includes the fan assembly as described above. Since the fan assembly has the beneficial effects described above, the range hood including the fan assembly as described above will necessarily have the beneficial effects described above.

[0077] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0078] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0079] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0080] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0081] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fan assembly, characterized in that, include: A fan having a volute and an outer rotor motor, the volute enclosing a mounting cavity, the outer rotor motor being at least partially located within the mounting cavity; as well as A support assembly having a first support and a second support, the first support and the second support being staggered and overlapping, the first support having a first mating portion and the second support having a second mating portion; The volute has an air inlet side, and the ends of the first bracket and the second bracket are both connected to the air inlet side. One end of the central shaft of the external rotor motor passes through the first mating part and the second mating part in sequence to connect to the bracket assembly.

2. The wind turbine assembly according to claim 1, characterized in that, An air guide ring is provided on the air inlet side, and the ends of the first bracket and the second bracket are both connected to the air guide ring.

3. The wind turbine assembly according to claim 2, characterized in that, The first bracket has at least two first support members, one end of which is connected to the first mating part and the other end of which is connected to the air guide ring; the second bracket has at least two second support members, one end of which is connected to the second mating part and the other end of which is connected to the air guide ring.

4. The wind turbine assembly according to claim 3, characterized in that, The first support member is connected to one end of the air guide ring and has a first foot, which makes surface contact with the air guide ring; the second support member is connected to one end of the air guide ring and has a second foot, which makes surface contact with the air guide ring.

5. The wind turbine assembly according to claim 4, characterized in that, The first foot and the second foot are evenly spaced along the circumference of the air guide ring.

6. The wind turbine assembly according to claim 1, characterized in that, The first mating part is provided with a first through hole for the central shaft to pass through, and the first mating part includes a first plate part and a first boss part protruding on the first plate part, and the first through hole passes through the first boss part and the first plate part; the second mating part is provided with a second through hole for the central shaft to pass through, and the second mating part includes a second plate part and a second boss part protruding on the second plate part, and the second through hole passes through the second boss part and the second plate part.

7. The wind turbine assembly according to claim 6, characterized in that, The wall of the first through hole has a first limiting part, the wall of the second through hole has a second limiting part, and the central shaft has a first abutting part that abuts against the first limiting part and a second abutting part that abuts against the second limiting part.

8. The wind turbine assembly according to claim 3, characterized in that, The first support member has a first reinforcing portion formed thereon, and the second support member has a second reinforcing portion formed thereon.

9. The wind turbine assembly according to claim 1, characterized in that, The external rotor motor has a rotating housing that rotates around the central axis. The rotating housing has an outer end face. A fastener is connected to the central axis. The fastener abuts against the second mating part away from the outer end face and locks the second bracket to the central axis.

10. The wind turbine assembly according to claim 3, characterized in that, The first bracket has two first support members, and the second bracket has two second support members. The first bracket and the second bracket are arranged in a cross shape.

11. The wind turbine assembly according to claim 1, characterized in that, At least one end of the central shaft is connected to the support assembly.

12. A range hood, characterized in that, The device includes a smoke hood, a fan cabinet, and a fan assembly as described in any one of claims 1 to 11, wherein a receiving cavity is formed inside the fan cabinet, the fan assembly is disposed within the receiving cavity, and the smoke hood is disposed below the fan cabinet.

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