Fan assembly and tower fan having the same

Abstract

The utility model discloses a fan assembly and have its tower fan, fan assembly includes: motor, the motor includes motor main part and motor shaft, the motor shaft with motor main part links to each other, wind wheel assembly, connecting piece, connecting piece is connected between the motor shaft with the wind wheel, be equipped with the blade on the connecting piece, the blade is located the outer peripheral wall of connecting piece, the blade is suitable for producing the airflow flowing in the axial direction of motor shaft. According to the fan assembly of the utility model, in the process that the motor drives the wind wheel assembly to rotate to produce the airflow through the connecting piece, the connecting piece drives the blade to rotate to produce the airflow blowing through the motor main part, thereby can improve the heat dissipation efficiency of the motor in the working process of the tower fan, and then improve the reliability in the working process of the tower fan.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a fan assembly and a tower fan having the same. Background Technology

[0002] Tower fans deliver more even airflow and occupy less space, making them an increasingly popular choice for home appliances. The motor is a crucial component of tower fans, generating heat during operation. However, in some technologies, the heat dissipation efficiency of tower fan motors is relatively low, affecting the reliability of the tower fan during operation. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a fan assembly that can improve the heat dissipation efficiency of the motor during tower fan operation.

[0004] This utility model also proposes a tower fan having the above-mentioned fan components.

[0005] According to a first aspect of the present invention, a fan assembly includes: a motor, the motor including a motor body and a motor shaft, the motor shaft being connected to the motor body; a fan assembly; and a connector, the connector being connected between the motor shaft and the fan assembly, the connector having blades disposed on the outer peripheral wall of the connector, the blades being adapted to generate an airflow flowing axially on the motor shaft.

[0006] According to the first aspect of the present invention, the fan assembly has blades on the connector. On the one hand, when the motor drives the fan wheel assembly to rotate through the connector to generate airflow, the blades driven by the connector can generate airflow towards the motor body, thereby improving the heat dissipation efficiency of the motor during the operation of the tower fan and thus improving the reliability of the tower fan during operation. On the other hand, it can reduce the development difficulty and development cost.

[0007] According to some embodiments of the present invention, at least one of the motor shaft and the wind turbine assembly is detachably connected to the connector.

[0008] According to some embodiments of the present invention, a first mounting hole is formed at one end of the connector facing the motor body, and the motor shaft extends into the first mounting hole and is connected to the connector.

[0009] According to some embodiments of the present invention, the end of the connector facing the motor body is further provided with a first limiting groove. The first limiting groove extends along a first direction and communicates with the first mounting hole. The first direction intersects with the axial direction of the motor shaft. A first pin is provided on the outer peripheral wall of the motor shaft, and the first pin is engaged in the first limiting groove.

[0010] According to some embodiments of the present invention, a first fixing hole is formed at one end of the motor shaft that extends into the first mounting hole, and a second mounting hole is formed at one end of the connector that is away from the motor body. Both the first mounting hole and the second mounting hole are blind holes. The bottom walls of the first mounting hole and the second mounting hole are connected through the second fixing hole. The fan assembly further includes a first fastener, which passes through the second fixing hole and is connected to the first fixing hole.

[0011] According to some embodiments of the present invention, a second mounting hole is formed at the end of the connector away from the motor body, and the impeller assembly includes an impeller and a central shaft, the impeller and the central shaft are connected, and the central shaft extends into the second mounting hole and is connected to the connector.

[0012] According to some embodiments of the present invention, a second limiting groove is formed at the end of the connector away from the motor body. The second limiting groove extends along a second direction and communicates with the first mounting hole. The second direction intersects with the axial direction of the motor shaft. A second pin is provided on the outer peripheral wall of the central shaft, and the second pin is engaged in the second limiting groove.

[0013] According to some embodiments of the present invention, a third mounting hole is formed at one axial end of the wind turbine, the central shaft extends into the third mounting hole, a third fixing hole is formed on the side wall of the third mounting hole and penetrates the side wall of the third mounting hole along the thickness direction, a fourth fixing hole is formed on the outer peripheral wall of the central shaft, and the wind turbine assembly further includes: a second fastener, the second fastener passing through the third fixing hole and connected to the fourth fixing hole.

[0014] A tower fan according to a second aspect of the present invention includes: the fan assembly according to the first aspect of the present invention; a base, wherein the motor is disposed on the base; a receiving cavity with an open lower end is formed in the main body of the fan body, an air inlet and an air outlet communicating with the receiving cavity are formed on the main body of the fan body, the fan wheel assembly is rotatably supported in the receiving cavity and located between the air inlet and the air outlet, and the main body of the fan body is supported on the base.

[0015] According to the second aspect of the present invention, by setting the fan assembly according to the first aspect of the present invention, the reliability of the tower fan during operation can be improved.

[0016] According to some embodiments of this utility model, the main body of the machine body and the base are detachably connected.

[0017] According to some embodiments of the present invention, the receiving cavity is provided with a support portion, the support portion is connected to the inner wall of the receiving cavity, and a clearance hole is formed on the support portion. The wind turbine assembly includes a wind turbine and a central shaft. The wind turbine is located on the upper side of the support portion. One end of the central shaft is connected to the wind turbine, and the other end of the central shaft passes through the clearance hole and is connected to the connecting member. The tower fan also includes a vibration damping member, which is located in the clearance hole and arranged around the central shaft.

[0018] According to some embodiments of the present invention, a mounting cavity with an upper opening is formed in the base, a vent hole communicating with the mounting cavity is formed on the base, the motor is disposed in the mounting cavity, and the main body of the machine body covers the opening of the mounting cavity.

[0019] 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

[0020] Figure 1 This is a schematic diagram of a tower fan according to an embodiment of the present utility model; Figure 2 yes Figure 1 An exploded view of the tower fan shown in the image; Figure 3 yes Figure 1 A cross-sectional view of the tower fan shown; Figure 4 This is a cross-sectional view of a portion of the tower fan structure according to an embodiment of the present utility model; Figure 5 This is a cross-sectional view of a portion of the structure of a tower fan according to another embodiment of the present invention; Figure 6 This is a cross-sectional view of a portion of the structure of a tower fan according to another embodiment of the present invention.

[0021] Figure label: 1000, Tower Fan; 100. Fan components; 10. Motor; 11. Motor body; 12. Motor shaft; 121. First pin; 122. First fixing hole; 20. Wind turbine assembly; 21. Wind turbine; 211. Third mounting hole; 22. Central shaft; 221. Second pin; 30. Connector; 31. Blade; 32. First mounting hole; 33. First limiting groove; 34. Second mounting hole; 35. Second fixing hole; 36. Second limiting groove; 200, base; 210, mounting cavity; 220, vent hole; 230, motor mount; 300. Main body; 310. Receiving cavity; 320. Air outlet; 330. Support part; 400. Vibration damping components. Detailed Implementation

[0022] 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] The following is for reference. Figures 1-6 A fan assembly 100 according to a first aspect embodiment of the present invention is described.

[0024] like Figures 3-6 As shown, the fan assembly 100 according to the first aspect of the present invention includes: a motor 10, a fan wheel assembly 20 and a connector 30.

[0025] Specifically, the motor 10 includes a motor body 11 and a motor shaft 12. The motor shaft 12 is connected to the motor body 11. A connecting member 30 is connected between the motor shaft 12 and the impeller assembly 20. The connecting member 30 is provided with blades 31, which are located on the outer peripheral wall of the connecting member 30. The blades 31 are adapted to generate airflow flowing axially on the motor shaft 12.

[0026] It is understandable that the motor shaft 12 and the impeller assembly 20 are connected axially. During the rotation of the impeller assembly 20, most of the airflow generated by the impeller assembly 20 flows in the circumferential and radial directions. As a result, less of the airflow generated by the impeller assembly 20 blows over the motor 10. During the rotation of the impeller assembly 20 driven by the motor 10, the heat dissipation effect of the motor 10 is poor.

[0027] In this embodiment, during the operation of the fan assembly 100, the motor shaft 12 drives the impeller assembly 20 to rotate via the connector 30. The impeller assembly 20 generates negative pressure, thereby creating airflow in the surrounding environment. Thus, the tower fan 1000 can blow air into the environment. Simultaneously, as the connector 30 rotates, the blades 31 rotate with it, generating negative pressure along the axial direction of the motor shaft 12. Under the action of the negative pressure on the blades 31, airflow is generated that blows over the motor body 11. During this process, the airflow exchanges heat with the motor body 11, thereby improving the heat dissipation efficiency of the motor body 11. The airflow can travel from the motor body 11 to the impeller assembly 20, or it can travel from the blades 31 to the motor body 11.

[0028] By setting the blades 31 on the connector 30 used to connect the motor shaft 12 and the impeller assembly 20, the arrangement of the blades 31 on the connector 30 is relatively simple. During product development, the structure of the motor shaft 12 and the impeller assembly 20 does not need to be modified, which can reduce the development difficulty and development cost. During production, after the blades 31 are installed on the connector 30, the connector 30 and the blades 31 are connected together between the motor 10 and the impeller assembly 20, making the production process relatively simple.

[0029] By setting the blades 31 on the outer peripheral wall of the connector 30, it is relatively easy to set the blades 31 on the connector 30. Furthermore, the blades 31 have a large range of action in the radial direction, which can increase the airflow through the motor body 11, thereby further improving the heat dissipation efficiency of the motor body 11.

[0030] Preferably, there are multiple blades 31, which are arranged at intervals on the outer peripheral wall of the connector 30.

[0031] According to the fan assembly 100 of the first aspect of the present invention, by setting blades 31 on the connector 30, on the one hand, when the motor 10 drives the fan assembly 20 to rotate through the connector 30 to generate airflow, the connector 30 drives the blades 31 to rotate, which can generate airflow that blows over the motor body 11, thereby improving the heat dissipation efficiency of the tower fan 1000 on the motor 10 during operation, and thus improving the reliability of the tower fan 1000 during operation. On the other hand, it can reduce the development difficulty and development cost.

[0032] In some embodiments of this utility model, such as Figure 2 , Figure 4 and Figure 5 As shown, at least one of the motor shaft 12 and the impeller assembly 20 is detachably connected to the connector 30.

[0033] In other words, the motor shaft 12 and the connector 30 can be detachably connected, the impeller assembly 20 can be detachably connected to the connector 30, or both the motor shaft 12 and the impeller assembly 20 can be detachably connected to the connector 30.

[0034] It is understandable that as the tower fan 1000 operates for a longer period of time, dust and other impurities will gradually accumulate on the impeller assembly 20. In order to ensure the health of users, the impeller assembly 20 needs to be cleaned when it is dirty. In this embodiment, at least one of the motor shaft 12 and the impeller assembly 20 is detachably connected to the connector 30. During user use, the impeller assembly 20 can be separated from the motor 10, which makes it easier for users to clean the impeller assembly 20 and thus improves the user experience.

[0035] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the end of the connector 30 facing the motor body 11 has a first mounting hole 32, and the motor shaft 12 extends into the first mounting hole 32 and is connected to the connector 30.

[0036] During assembly, the first mounting hole 32 can position the motor shaft 12, enabling the motor shaft 12 and the connector 30 to quickly fit into place, thereby reducing assembly difficulty and improving assembly efficiency. After assembly, the first mounting hole 32 can limit the motor shaft 12, and a part of the motor shaft 12 extends into the first mounting hole 32, which can reduce the axial size of the fan assembly 100 on the motor shaft 12, thereby facilitating the arrangement of the fan assembly 100 within the tower fan 1000.

[0037] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the end of the connector 30 facing the motor body 11 is also formed with a first limiting groove 33. The first limiting groove 33 extends along the first direction and is connected to the first mounting hole 32. The first direction intersects with the axial direction of the motor shaft 12. A first pin 121 is provided on the outer peripheral wall of the motor shaft 12. The first pin 121 is engaged in the first limiting groove 33.

[0038] During assembly, the motor shaft 12 extends into the first mounting hole 32, and at the same time, the first pin 121 extends into the first limiting groove 33. In this way, the motor shaft 12 and the first mounting hole 32 cooperate, and the first pin 121 and the first limiting groove 33 cooperate to position the connector 30 and the motor shaft 12 in two directions, which can improve the fitting accuracy of the connector 30 and the motor shaft 12.

[0039] After assembly, the first pin 121 and the first limiting groove 33 cooperate to limit the connection 30 and the motor shaft 12 in the circumferential direction. When the motor shaft 12 rotates, the first pin 121 pushes the inner wall of the first limiting groove 33 to make the connection 30 rotate with the motor shaft 12. Thus, the transmission between the motor shaft 12 and the connection 30 can be realized. Furthermore, the contact area between the first pin 121 and the first limiting groove 33 is large, and the direction of the force between the first pin 121 and the first limiting groove 33 is perpendicular to the direction in which the first pin 121 disengages from the first limiting groove 33. Therefore, the transmission and engagement of the first pin 121 in the first limiting groove 33 has high reliability.

[0040] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the motor shaft 12 extends into the first mounting hole 32 and has a first fixing hole 122 at one end. The connector 30 has a second mounting hole 34 at the end away from the motor body 11. Both the first mounting hole 32 and the second mounting hole 34 are blind holes. The bottom walls of the first mounting hole 32 and the second mounting hole 34 are connected through the second fixing hole 35. The fan assembly 100 also includes a first fastener, which passes through the second fixing hole 35 and is connected to the first fixing hole 122.

[0041] During assembly, the motor shaft 12 is first inserted into the first mounting hole 32, and then the first fastener passes through the second mounting hole 34 through the second fixing hole 35 and is connected to the first fixing hole 122. Thus, the motor shaft 12 can be fixed in the first mounting hole 32. When the motor shaft 12 and the connecting piece 30 have relative axial displacement, the first fastener can prevent it, thereby achieving axial positioning between the motor shaft 12 and the connecting piece 30.

[0042] Among them, the fastener connection is simple to operate and can also realize the detachable connection between the motor shaft 12 and the connector 30. In addition, the fastener connection has high strength and reliability, and it is easier to make the axial connection strength of the motor shaft 12 and the connector 30 meet the usage requirements. Preferably, the first fastener is a bolt and the first fixing hole 122 is a threaded hole.

[0043] In some embodiments of this utility model, such as Figures 3-5 As shown, the end of the connector 30 away from the motor body 11 has a second mounting hole (34). The impeller assembly 20 includes an impeller 21 and a central shaft 22. The impeller 21 and the central shaft 22 are connected. The central shaft 22 extends into the second mounting hole 34 and is connected to the connector 30.

[0044] During assembly, the impeller 21 and the central shaft 22 are first connected, and the connecting piece 30 and the motor shaft 12 are connected. Specifically, the motor shaft 12 is inserted into the first mounting hole 32, and the first fastener is passed through the second mounting hole 34 and the second fixing hole 35, connecting the first fastener to the first fixing hole 122. Then, the central shaft 22 is inserted into the second mounting hole 34, connecting the central shaft 22 to the connecting piece 30. The second mounting hole 34 can position the central shaft 22, allowing the central shaft 22 and the connecting piece 30 to quickly fit into place. Furthermore, the second mounting hole 34 provides clearance for the first fastener, allowing it to smoothly pass through the second fixing hole 35 and connect to the first fixing hole 122. After assembly, the second mounting hole 34 can limit the movement of the central shaft 22. In addition, the partial insertion of the central shaft 22 into the second mounting hole 34 reduces the axial dimension of the fan assembly 100 on the central shaft 22, thus facilitating the arrangement of the fan assembly 100.

[0045] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the end of the connector 30 away from the motor body 11 is also formed with a second limiting groove 36. The second limiting groove 36 extends along the second direction and communicates with the first mounting hole 32. The second direction intersects with the axial direction of the motor shaft 12. A second pin 221 is provided on the outer peripheral wall of the central shaft 22. The second pin 221 is engaged in the second limiting groove 36.

[0046] During the assembly process, after the impeller 21 is connected to the central shaft 22 and the connector 30 is connected to the motor shaft 12, the central shaft 22 is inserted into the second mounting hole 34, and at the same time, the second pin 221 is inserted into the second limiting groove 36. In this way, the central shaft 22 and the second mounting hole 34 cooperate, and the second pin 221 and the second limiting groove 36 cooperate to position the connector 30 and the central shaft 22 in two directions, which can improve the fitting accuracy of the connector 30 and the central shaft 22.

[0047] After assembly, the second pin 221 and the second limiting groove 36 cooperate to limit the connection 30 and the central shaft 22 in the circumferential direction. When the connection 30 rotates, the inner wall of the second limiting groove 36 pushes the second pin 221 to rotate the central shaft 22, which in turn drives the impeller 21 to rotate. Thus, the transmission between the connection 30 and the central shaft 22 can be realized. Furthermore, the contact area between the second pin 221 and the second limiting groove 36 is large, and the direction of the force between the second pin 221 and the second limiting groove 36 is perpendicular to the direction in which the second pin 221 disengages from the second limiting groove 36. The transmission and engagement reliability of the second pin 221 in the second limiting groove 36 is high.

[0048] When it is necessary to clean the impeller 21, the impeller 21 can be moved so that the central shaft 22 is pulled out from the second mounting hole 34 and the second pin 221 is disengaged from the second limiting groove 36, thus separating the impeller assembly 20 from the motor 10. The connection and disassembly of the impeller assembly 20 from the motor 10 are relatively convenient.

[0049] In some embodiments of this utility model, a third mounting hole 211 is formed at one axial end of the impeller 21, the central shaft 22 extends into the third mounting hole 211, a third fixing hole is formed on the side wall of the third mounting hole 211 through the side wall of the third mounting hole 211 along the thickness direction, a fourth fixing hole is formed on the outer peripheral wall of the central shaft 22, and the fan assembly 100 further includes: a second fastener, the second fastener passes through the third fixing hole and is connected to the fourth fixing hole.

[0050] During assembly, the central shaft 22 is inserted into the third mounting hole 211 and the third fixing hole and the fourth fixing hole are aligned. Then, the second fastener passes through the third fixing hole and connects to the fourth fixing hole. Thus, the central shaft 22 can be fixed in the third mounting hole 211. During the rotation of the impeller 21 driven by the central shaft 22, the second fastener transmits force between itself and the sidewalls of the third fixing hole and the fourth fixing hole. The direction of the second fastener's release is perpendicular to the direction of force transmission, making the transmission more reliable.

[0051] The fastener connection is convenient to operate and has high strength and reliability. Preferably, the second fastener is a bolt and the fourth fixing hole is a threaded hole.

[0052] In some embodiments of this utility model, such as Figure 3 As shown, at least a portion of the blade 31 is arranged opposite to the motor shaft 12 in the radial direction of the motor shaft 12.

[0053] In other words, in the radial direction of the motor shaft 12, either part of the blade 31 can be arranged opposite to the motor shaft 12, or all of the blade 31 can be arranged opposite to the motor shaft 12.

[0054] In this way, the blades 31 are closer to the motor body 11. During the operation of the fan assembly 100, the negative pressure generated by the blades 31 is less lost when transmitted to the motor body 11, thereby increasing the airflow velocity across the motor body 11 and further improving the heat dissipation efficiency of the motor body 11.

[0055] In some embodiments of this utility model, such as Figure 6 As shown, the wind turbine assembly 20 includes a wind turbine 21 and a central shaft 22, the central shaft 22 being connected between the wind turbine 21 and the connector 30, and at least a portion of the blades 31 being arranged opposite to the central shaft 22 in the radial direction of the central shaft 22.

[0056] In other words, in the radial direction of the central axis 22, either part of the blade 31 can be arranged opposite to the central axis 22, or all of the blade 31 can be arranged opposite to the central axis 22.

[0057] In this way, the blade 31 is closer to the wind turbine assembly 20, and there is a larger airflow space between the blade 31 and the motor body 11. When the blade 31 rotates to generate airflow, the negative pressure distribution between the blade 31 and the motor body 11 is more uniform, which can make the airflow blowing over the motor body 11 more uniform, thereby improving the uniformity of heat dissipation of the motor body 11.

[0058] The following is for reference. Figures 1-6 A tower fan 1000 according to a second aspect embodiment of the present invention is described.

[0059] According to the second aspect embodiment of the present utility model, the tower fan 1000, as follows: Figure 1 , Figure 2 and Figure 5 As shown, it includes: the fan assembly 100, the base 200 and the main body 300 according to the first aspect of the present utility model.

[0060] Specifically, the motor 10 is mounted on the base 200, and the main body 300 has an open-bottomed receiving cavity 310. The main body 300 has an air inlet and an air outlet 320 that communicate with the receiving cavity 310. The impeller assembly 20 is rotatably supported in the receiving cavity 310 and is located between the air inlet and the air outlet 320. The main body 300 is supported on the base 200.

[0061] The base 200 covers the open opening of the receiving cavity 310. The motor shaft 12 extends into the receiving cavity 310 through the open opening and is connected to the wind turbine assembly 20 through the connector 30. During the operation of the tower fan 1000, the motor 10 drives the wind turbine assembly 20 to rotate through the connector 30. The wind turbine assembly 20 generates negative pressure in the receiving cavity 310, causing airflow to enter the receiving cavity 310 through the air inlet and then flow out from the air outlet 320. Thus, the blowing function of the tower fan 1000 can be realized.

[0062] During the blowing process of the tower fan 1000, the connector 30 drives the blades 31 to rotate, generating airflow in the axial direction of the motor shaft 12. The airflow blows over the motor body 11, which can dissipate heat from the motor body 11.

[0063] According to the second aspect embodiment of the present invention, the tower fan 1000 can improve the reliability of the tower fan 1000 during operation by providing the fan assembly 100 according to the first aspect embodiment of the present invention.

[0064] In some embodiments of this utility model, such as Figure 2, Figure 4 and Figure 5 As shown, the main body 300 and the base 200 are detachably connected.

[0065] The central shaft 22 of the impeller assembly 20 is detachably connected to the connector 30. As the tower fan 1000 operates for a longer period of time, when it is necessary to clean the impeller 21, the main body 300 is removed from the base 200, and the impeller assembly 20 is separated from the motor shaft 12. This makes it easier to clean the impeller 21, thereby improving the user experience.

[0066] In some embodiments of this utility model, such as Figures 3-6 As shown, a support portion 330 is provided in the receiving cavity 310. The support portion 330 is connected to the inner wall of the receiving cavity 310. A clearance hole is formed on the support portion 330. The wind turbine assembly 20 includes a wind turbine 21 and a central shaft 22. The wind turbine 21 is located on the upper side of the support portion 330. One end of the central shaft 22 is connected to the wind turbine 21. The other end of the central shaft 22 passes through the clearance hole and is connected to the connector 30. The tower fan 1000 also includes a vibration damper 400. The vibration damper 400 is located in the clearance hole and is arranged around the central shaft 22.

[0067] It is understandable that radial sway will inevitably occur during the rotation of the wind turbine assembly 20, causing the wind turbine 21 to strike the rotating connection between the wind turbine assembly 20 and the main body 300. By setting up the vibration damping component 400, the vibration damping component 400 can absorb part of the radial displacement of the central shaft 22, thereby preventing the wind turbine assembly 20 from swaying radially and thus improving the stability of the tower fan 1000 during operation.

[0068] In some embodiments of this utility model, such as Figures 3-6 As shown, a mounting cavity 210 with an upper opening is formed in the base 200, and a vent 220 communicating with the mounting cavity 210 is formed on the base 200. The motor 10 is located in the mounting cavity 210, and the main body 300 covers the opening of the mounting cavity 210.

[0069] Both the support 330 and the motor base 230 have vertically connected ventilation channels. During the operation of the tower fan 1000, the blades 31 rotate to generate airflow along the axial direction of the motor shaft 12. The airflow can enter or exit the mounting cavity 210 through the ventilation hole 220, and then flow out or in from the air outlet 320 or the air inlet. Thus, the cooling airflow of the motor body 11 can be circulated.

[0070] By placing the motor 10 in the mounting cavity 210, the height of the tower fan 1000 can be reduced, making it easier for users to place the tower fan 1000 in the usage environment, and the main body 300 can provide protection for the motor 10.

[0071] The following description uses the airflow generated by the blade 31 from the motor body 11 to the impeller 21 as an example to illustrate the airflow direction that dissipates heat from the motor body 11.

[0072] Airflow enters the mounting cavity 210 through the vent 220, then blows upward through the venting channel on the motor base 230 and over the motor body 11. Subsequently, the airflow enters the receiving cavity 310 inside the main body 300 and passes through the venting channel on the support 330. Driven by the negative pressure of the impeller 21, the airflow flows out from the air outlet 320, thereby achieving heat dissipation of the motor body 11 during the operation of the tower fan 1000.

[0073] In the product design, the blades 31 can also generate airflow towards the motor body 11. During the operation of the tower fan 1000, the airflow enters the receiving cavity 310 from the air inlet under the drive of the impeller 21, then passes down through the ventilation channel of the support part 330, and after passing over the motor 10, it is discharged from the ventilation channel on the motor base 230 through the ventilation hole 220.

[0074] In some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6 As shown, the tower fan 1000 also includes a motor base 230, which is sleeved on the outside of the motor body 11 and supported in the mounting cavity 210.

[0075] The motor base 230 is fixedly connected to the inner wall of the mounting cavity 210, and a part of the motor base 230 extends out of the mounting cavity 210. During the assembly process, the part of the motor base 230 extending out of the mounting cavity 210 extends into the receiving cavity 310, and the motor shaft 12 is connected to the central shaft 22 through the connector 30.

[0076] By setting the motor mount 230, it is easy to arrange the motor 10 in the base 200 and improve the stability of the motor 10 on the base 200. In addition, the motor mount 230 can protect the motor 10, thereby reducing the probability of the motor 10 being damaged during operation.

[0077] During the assembly of the base 200, the motor shaft 12 is first connected to the connector 30, the motor 10 is assembled onto the motor base 230, and then the motor base 230 is installed into the mounting cavity 210 of the base 200, thus completing the assembly of the base 200.

[0078] During the assembly of the fuselage body 300, the impeller 21 is first assembled into the receiving cavity 310, and then one end of the central shaft 22 is connected to the impeller 21 through the clearance hole, thereby completing the assembly of the fuselage body 300.

[0079] The assembled fuselage body 300 is then placed on the base 200, allowing the fuselage body 300 to align with the base 200. The central shaft 22 is then placed into the second mounting hole 34 of the connector 30, and the second pin 221 of the central shaft 22 is placed into the second limiting groove 36. Thus, the fuselage body 300 and the base 200 are aligned vertically to achieve assembly. During the operation of the tower fan 1000, the second pin 221 and the second limiting groove 36 work together to achieve transmission between the motor 10 and the impeller 21. Furthermore, since the fuselage body 300 and the base 200 are aligned vertically, the probability of the second pin 221 coming out of the second limiting groove 36 is low.

[0080] When it is necessary to clean the impeller 21, disconnect the connection structure between the main body 300 and the base 200, then pull the main body 300 upward from the base 200, and let the central shaft 22 come out from the second mounting hole 34 and the second pin 221 come out from the second limiting groove 36. Thus, it is relatively convenient to disassemble the main body 300 and the impeller 21 from the base 200.

[0081] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0083] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0085] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fan assembly, characterized in that, include: An electric motor, comprising a motor body and a motor shaft, wherein the motor shaft is connected to the motor body; Wind turbine assembly; A connector is provided between the motor shaft and the impeller assembly. The connector is provided with blades on its outer peripheral wall. The blades are adapted to generate an airflow that flows axially on the motor shaft.

2. The wind turbine assembly according to claim 1, characterized in that, At least one of the motor shaft and the wind turbine assembly is detachably connected to the connector.

3. The wind turbine assembly according to claim 1, characterized in that, The connector has a first mounting hole at one end facing the motor body, and the motor shaft extends into the first mounting hole and connects to the connector.

4. The wind turbine assembly according to claim 3, characterized in that, The connector also has a first limiting groove at one end facing the motor body. The first limiting groove extends along a first direction and communicates with the first mounting hole. The first direction intersects with the axial direction of the motor shaft. A first pin is provided on the outer peripheral wall of the motor shaft, and the first pin is engaged in the first limiting groove.

5. The wind turbine assembly according to claim 3, characterized in that, The motor shaft has a first fixing hole at one end that extends into the first mounting hole, and a second mounting hole at the end of the connector away from the motor body. Both the first and second mounting holes are blind holes, and their bottom walls are connected through the second fixing hole. The fan assembly further includes a first fastener, which passes through the second fixing hole and is connected to the first fixing hole.

6. The wind turbine assembly according to claim 3, characterized in that, The connector has a second mounting hole at one end away from the motor body. The impeller assembly includes an impeller and a central shaft. The impeller and the central shaft are connected. The central shaft extends into the second mounting hole and is connected to the connector.

7. The wind turbine assembly according to claim 6, characterized in that, The connector is further provided with a second limiting groove at the end away from the motor body. The second limiting groove extends along a second direction and communicates with the first mounting hole. The second direction intersects with the axial direction of the motor shaft. A second pin is provided on the outer peripheral wall of the central shaft and the second pin is engaged in the second limiting groove.

8. The wind turbine assembly according to claim 6, characterized in that, A third mounting hole is formed at one axial end of the wind turbine, and the central shaft extends into the third mounting hole. A third fixing hole is formed on the side wall of the third mounting hole, penetrating the side wall of the third mounting hole along the thickness direction. A fourth fixing hole is formed on the outer peripheral wall of the central shaft. The fan assembly further includes a second fastener, which passes through the third fixing hole and is connected to the fourth fixing hole.

9. A tower fan, characterized in that, include: The wind turbine assembly according to any one of claims 1-8; The motor is mounted on the base. The main body of the fuselage has an open cavity at the lower end, and an air inlet and an air outlet communicating with the cavity are formed on the main body of the fuselage. The impeller assembly is rotatably supported in the cavity and located between the air inlet and the air outlet. The main body of the fuselage is supported on the base.

10. The tower fan according to claim 9, characterized in that, The main body of the fuselage is detachably connected to the base.

11. The tower fan according to claim 9, characterized in that, The receiving cavity is provided with a support portion, which is connected to the inner wall of the receiving cavity. A through-hole is formed on the support portion. The impeller assembly includes an impeller and a central shaft. The impeller is located on the upper side of the support portion. One end of the central shaft is connected to the impeller, and the other end of the central shaft passes through the through-hole and is connected to the connecting member. The tower fan also includes a vibration damper, which is disposed in the clearance hole and arranged around the central axis.

12. The tower fan according to claim 9, characterized in that, The base has an upper opening for mounting, and the base has a vent hole communicating with the mounting cavity. The motor is located in the mounting cavity, and the main body of the machine body covers the opening of the mounting cavity.

Images