Fan assembly and clothes drying equipment

Abstract

The utility model discloses a blower fan assembly and clothes drying equipment, the blower fan assembly comprises a blower fan and a separator, the blower fan comprises a motor shaft, the motor shaft comprises an extension part which is at least partially exposed, the separator is insulated, and the separator covers the peripheral side of the extension part. According to the fan assembly, insulation isolation between the motor shaft and the barrel can be achieved, the situation that in the using process, due to liquid permeation and the like, the equivalent insulation distance is shortened, and electricity leakage is likely to happen is avoided, and the using safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, specifically, a fan assembly and a clothes drying device. BACKGROUND

[0002] The dryer is a device capable of quickly drying clothes, textiles and the like. In recent years, as people's requirements for the quality of life are becoming higher and higher, the household penetration rate of dryers is also becoming higher and higher. The dryer in the related art usually includes an inner drum and a drying channel system, wherein the inner drum is used to store clothes to be dried, and the drying channel system includes a drying channel and a fan for providing hot air into the inner drum. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art.

[0004] To this end, the utility model embodiment provides a fan assembly, which can realize insulation isolation between the motor shaft and the cylinder, avoid the situation that the equivalent insulation distance is shortened and easy to cause electric leakage due to the penetration of liquid in use, and improve the safety of use.

[0005] The utility model embodiment further provides a clothes drying device comprising the above fan assembly.

[0006] The fan assembly of the utility model embodiment comprises:

[0007] The fan comprises a motor shaft, and the motor shaft comprises an extension part exposed at least partially;

[0008] The isolation piece is insulated, and the isolation piece is covered on the outer circumferential side of the extension part.

[0009] In some embodiments, the isolation piece is threadedly assembled with the fan.

[0010] In some embodiments, the threadedly assembled direction of the isolation piece and the fan is opposite to the rotation direction of the fan.

[0011] In some embodiments, the fan comprises an impeller, the motor shaft passes through the hub of the impeller, the extension part is exposed from the side of the impeller facing the cylinder, and the isolation piece is connected with at least one of the motor shaft and the impeller.

[0012] In some embodiments, the impeller is provided with a connecting part, and the isolation piece is connected with the impeller through the connecting part.

[0013] In some embodiments, the connecting portion is arranged at the outer circumferential side of the extension portion, and the connecting portion extends along the circumferential direction of the extension portion to close and form a groove, and the spacer is at least partially fitted in the groove.

[0014] In some embodiments, the spacer is threadedly fitted with the connecting portion.

[0015] In some embodiments, the spacer comprises a first segment, the outer circumferential side of the first segment is provided with external threads and an inner hole, the first segment is threadedly fitted in the connecting portion, and the inner hole is used for inserting the extension portion.

[0016] In some embodiments, the spacer comprises a second segment connected with the first segment, at least part of the second segment has a radial dimension greater than that of the first segment, and the second segment is used to abut against the end surface of the connecting portion to limit the threaded fitting depth of the spacer.

[0017] In some embodiments, the impeller is provided with a plurality of connecting portions, the plurality of connecting portions are arranged at intervals along the circumferential direction of the motor shaft, and each connecting portion is connected with the spacer.

[0018] In some embodiments, the connecting portion penetrates through the spacer and is fixed by heat melting with the spacer.

[0019] In some embodiments, the connecting portion is integrally formed on the impeller.

[0020] In some embodiments, a sealing ring is arranged, the outer side of the impeller is provided with a protruding portion, the motor shaft penetrates through the protruding portion, the sealing ring is sleeved at the outer circumferential side of the sealing ring, and the sealing ring is clamped and fixed between the impeller and the spacer.

[0021] In some embodiments, the spacer is provided with a protruding portion, the protruding portion protrudes outwardly from the impeller and forms a avoiding groove at the inner side of the spacer, and the avoiding groove is used for inserting the extension portion.

[0022] In some embodiments, the fan comprises a fastener, the fastener is arranged at the outer circumferential side of the extension portion and abuts against the impeller.

[0023] In some embodiments, the material of the impeller of the fan is an insulating material.

[0024] In some embodiments, the motor shaft is a steel shaft.

[0025] The drying equipment comprises the fan assembly as described in any one of the above embodiments.

[0026] In some embodiments, a tub for placing laundry is included, the extension portion extends to the tub, and the spacer is provided at an outer circumferential side of the extension portion.

[0027] In some embodiments, the tub has an air outlet in communication with the fan assembly, and the extension portion is located in a passage of the fan assembly for communicating the air outlet or in the tub.

[0028] Beneficial effects: the fan assembly and the clothes drying device can realize insulation isolation between the motor shaft and the tub, avoid the situation that the equivalent insulation distance is shortened and easy to cause electric leakage due to the penetration of liquid in use, and improve the safety of use. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of the fan assembly of the embodiment of the utility model.

[0030] Figure 2 is a schematic view of the extension portion of the fan assembly of the embodiment of the utility model being provided with a spacer.

[0031] Figure 3 is a schematic view of the connecting portion and the fastener on the impeller.

[0032] Figure 4 is a schematic view of the spacer.

[0033] Figure 5 is a structural schematic view of the fan assembly of another embodiment of the utility model.

[0034] Figure 6 is Figure 5 is an exploded schematic view of the fan assembly.

[0035] Figure 7 is a partial structural schematic view of the clothes drying device of the embodiment of the utility model.

[0036] REFERENCE SIGNS:

[0037] 100 - fan assembly;

[0038] 1 - drying channel;

[0039] 2 - fan; 21 - motor shaft; 211 - extension portion; 22 - impeller; 221 - connecting portion; 222 - groove; 223 - internal thread; 224 - protruding portion; 23 - fastener; 24 - sealing ring;

[0040] 3 - spacer; 31 - first section; 311 - external thread; 312 - internal hole; 32 - second section; 33 - protruding portion;

[0041] 200 - barrel;

[0042] 300 - channel. DETAILED DESCRIPTION

[0043] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below by way of example with reference to the accompanying drawings are intended to explain the present application and should not be understood as limiting the present application.

[0044] The present application is made based on the inventor's discovery and understanding of the following facts and problems:

[0045] In the related art, the distance between the motor shaft and the inner barrel of the fan is relatively close. When washing or rinsing in the drying tunnel system, there is a risk that the liquid will be distributed between the motor shaft and the inner barrel, which will cause the equivalent insulation distance between the motor shaft and the inner barrel to be shortened, thereby increasing the risk of electric leakage during equipment operation.

[0046] The fan assembly 100 of the embodiment of the present application comprises a fan 2 and a spacer 3. The fan 2 comprises a motor shaft 21, and the motor shaft 21 comprises an outer extension part 211 which is at least partially exposed.

[0047] For example, as shown in Figure 1 The fan 2 can be assembled in the drying tunnel 1, and the drying tunnel 1 can be generally in the form of a flat tube structure, and the inlet and outlet of the drying tunnel 1 can be in communication with the barrel 200.

[0048] The fan 2 comprises an impeller 22 and a motor, and the motor comprises a motor shaft 21. The impeller 22 can be fixedly connected with the motor shaft 21. In use, the rotation of the motor shaft 21 can drive the impeller 22 to rotate, and the rotating impeller 22 can realize the circulation flow driving of the airflow, thereby meeting the use requirement of circulating supply of hot air in the barrel 200.

[0049] It should be noted that, as shown in Figure 1 The front end of the motor shaft 21 can pass through the impeller 22 and be exposed from the front side of the impeller 22. The exposed part of the motor shaft 21 is the above-mentioned outer extension part 211, and the outer extension part 211 is arranged towards the above-mentioned barrel 200. A nut or other structural part can be assembled on the outer extension part 211, thereby meeting the function of stopping and limiting the front side of the impeller 22, and the setting of the outer extension part 211 meets the use requirement of stopping and limiting assembly.

[0050] The spacer 3 is insulated, and the spacer 3 is arranged on the outer periphery side of the outer extension part 211 to realize the insulation and isolation between the motor shaft 21 and the barrel 200. For example, the material of the spacer 3 can be an insulating material such as plastic, as shown in Figure 2As shown, the isolating piece 3 can be generally in a cap structure, and the isolating piece 3 can be connected with the motor shaft 21 and the like through clamping, threaded fitting and the like, and the isolating piece 3 can cover the above-mentioned extension part 211 inside, thereby avoiding the case that the extension part 211 is directly exposed.

[0051] The fan assembly 100 in the embodiment of the utility model can realize insulation and isolation of the end part of the motor shaft 21, avoids the case that the equivalent insulation distance is shortened due to the close distance between the motor shaft 21 and the cylinder 200 and the like in the related art, and further can avoid the problem of electric leakage, thereby improving the safety of overall use.

[0052] In some embodiments, the isolating piece 3 is threaded assembled with the fan 2, for example, one of the fan 2 and the isolating piece 3 can be provided with an internal thread, and the other can be provided with an external thread, and when assembled, the threaded assembly of the isolating piece 3 and the fan 2 can be realized through the cooperation of the internal thread and the external thread, thereby improving the convenience of assembly of the isolating piece 3 and the fan 2, and also ensuring the sealing between the two.

[0053] In some embodiments, the threaded assembly direction of the isolating piece 3 and the fan 2 is opposite to the rotation direction of the fan 2. For example, in the actual use process, the rotation direction of the fan 2 can be clockwise rotation, and the rotation direction of the above-mentioned external thread 311 and internal thread 223 can be counterclockwise rotation.

[0054] Therefore, in the process of rotation of the fan 2, under the cooperation of the threads, the isolating piece 3 will tend to be tightened relative to the fan 2, avoiding the problem of loosening, and also realizing the effect of automatic tightening of the isolating piece 3.

[0055] In some embodiments, the fan 2 includes an impeller 22, and the isolating piece 3 is rotationally assembled with at least one of the motor shaft 21 and the impeller 22 of the fan 2. For example, as shown in Figure 2 The isolating piece 3 can be only threaded assembled with the impeller 22, or only threaded assembled with the motor shaft 21, and in other embodiments, the isolating piece 3 can be simultaneously threaded assembled with both the motor shaft 21 and the impeller 22. Therefore, the assembly mode of the isolating piece 3 is flexible and variable, and fully meets the assembly needs of various working conditions. In some embodiments, the fan 2 includes an impeller 22, the motor shaft 21 passes through the hub of the impeller 22, the extension part 211 is exposed from the side of the impeller 22 facing the cylinder 200, and the isolating piece 3 is connected with at least one of the motor shaft 21 and the impeller 22.

[0056] For example, as shown in Figure 2As shown, the impeller 22 can include a hub and a plurality of blades, the hub can be provided at the hub center of the impeller 22 and can extend generally along the front-rear direction, and the plurality of blades can be provided at the outer circumferential side of the hub and arranged at intervals along the circumferential direction of the hub. The hub is provided with a central hole, the motor shaft 21 can be fitted in the central hole of the hub, and the front end of the motor shaft 21 extends out of the front side of the hub and forms an extension part 211.

[0057] The isolating piece 3 can be detachably connected with the motor shaft 21, and in other embodiments, the isolating piece 3 can also be detachably connected with the impeller 22. In other embodiments, the isolating piece 3 can also be detachably connected with the motor shaft 21 and the impeller 22 at the same time. Thus, the assembly mode of the isolating piece 3 is diversified, and the mounting structure of the isolating piece 3 can be selectively adjusted according to actual needs.

[0058] In some embodiments, the impeller 22 is provided with a connecting part 221 on the side facing the cylinder 200, and the isolating piece 3 is connected with the impeller 22 through the connecting part 221. For example, as shown in Figure 3 The material of the impeller 22 can be plastic or the like, the connecting part 221 can be integrally formed on the front side of the impeller 22 by injection molding, the connecting part 221 can be a clamping structure or the like, and during assembly, the isolating piece 3 can be directly clamped and fixed with the connecting part 221 by clamping, thereby facilitating the detachable assembly of the isolating piece 3 and the impeller 22.

[0059] In some embodiments, the connecting part 221 is provided at the outer circumferential side of the extension part 211, the connecting part 221 extends along the circumferential direction of the extension part 211 to close and enclose a groove 222, and at least part of the isolating piece 3 is fitted in the groove 222.

[0060] For example, as shown in Figure 3 The connecting part 221 can be generally in the form of a circular ring, the connecting part 221 can be annularly arranged at the outer circumferential side of the extension part 211, and the inner circumferential wall of the connecting part 221 can be arranged at intervals with the extension part 211. The inner space of the connecting part 221 forms the groove 222, and part or all of the isolating piece 3 can be fitted in the groove 222.

[0061] In this way, on the one hand, the connecting part 221 facilitates the mounting and arrangement of the isolating piece 3, and on the other hand, the annular connecting part 221 can also shield the extension part 211, thereby enhancing the isolation and protection of the extension part 211.

[0062] In some embodiments, the isolating piece 3 is screw-fitted in the groove 222 of the connecting part 221. For example, as shown in Figure 3As shown, the inner circumferential wall of the connecting portion 221 can be provided with an internal thread 223, and the outer circumferential wall of the isolation piece 3 can be provided with an external thread 311. During assembly, the external thread 311 of the isolation piece 3 is directly assembled with the internal thread 223 of the connecting portion 221, thereby ensuring the structural stability of the assembly and the waterproof sealing between the isolation piece 3 and the connecting portion 221, and fully ensuring the insulation protection effect.

[0063] In some embodiments, the isolation piece 3 includes a first section 31, the outer circumferential side of the first section 31 is provided with an external thread 311 and an inner hole 312, the first section 31 is threadedly fitted into the groove 222, and the inner hole 312 is used for inserting the extension portion 211.

[0064] For example, as shown in the drawings, Figure 4 The first section 31 can be generally a circular column, the external thread 311 can be provided on the outer circumferential wall of the first section 31, and the inner space of the first section 31 forms the inner hole 312. During assembly, the first section 31 can be directly threadedly fitted into the groove 222, and the extension portion 211 can be inserted into the inner hole 312 of the first section 31.

[0065] In this way, on the one hand, the installation interference between the isolation piece 3 and the extension portion 211 is avoided, and the installation convenience is improved, and on the other hand, the first section 31 can also cover the outer circumferential side of the extension portion 211, thereby further enhancing the overall insulation protection effect.

[0066] In some embodiments, the isolation piece further includes a second section 32, the second section 32 is connected with the first section 31, at least part of the radial dimension of the second section 32 is greater than the radial dimension of the first section 31, and the second section 32 is used for abutting against the end face of the connecting portion 221 to limit the threaded assembly depth of the isolation piece 3.

[0067] For example, as shown in the drawings, Figure 4 The second section 32 can be generally a flat hexagonal prism, the material of the isolation piece 3 can be plastic, and the second section 32 can be integrally formed with the first section 31 by one-piece injection molding. The second section 32 is a solid structure, and the radial dimension of the second section 32 can be slightly greater than the radial dimension of the first section 31.

[0068] During assembly, the first section 31 can be completely threadedly rotated into the groove 222, and the rear end face of the second section 32 facing the first section 31 can be abutted against the front end face of the connecting portion 221, thereby on the one hand, limiting the rotation depth of the first section 31, and on the other hand, further enhancing the insulation isolation effect through the abutment of the two end faces.

[0069] In addition, the second section 32 can also seal the front end port of the first section 31, thereby ensuring the sealing and avoiding the exposure of the extension part 211.

[0070] In some embodiments, the fan 2 comprises a fastener 23 arranged on the outer circumferential side of the extension part 211 and abutting against the impeller 22, and the connecting part 221 is arranged on the outer circumferential side of the fastener 23, and at least part of the fastener 23 is fitted into the inner hole 312.

[0071] For example, as shown in Figure 3 the fastener 23 can be a nut, which is screwed on the outer circumferential side of the extension part 211. The motor shaft 21 can be provided with a shoulder, which is located at the rear side of the impeller 22. After the impeller 22 is sleeved on the outer circumferential side of the motor shaft 21, the fastener 23 can be screwed onto the motor shaft 21. Thus, the hub of the impeller 22 is clamped and fixed between the shoulder and the fastener 23, thereby achieving the installation and fixation of the impeller 22 and the motor shaft 21 and ensuring the structural stability of the assembly of the impeller 22 and the motor shaft 21.

[0072] It should be noted that when the above-mentioned isolation piece 3 is assembled to the impeller 22, the fastener 23 can also be covered on the outer circumferential side of the first section 31. Since the fastener 23 is usually made of metal and has non-insulating property, the insulation and protection of the fastener 23 can also be achieved.

[0073] In some embodiments, the impeller 22 is provided with a plurality of connecting parts 221, which are arranged at intervals along the circumferential direction of the motor shaft 21, and each connecting part 221 is connected with the isolation piece 3.

[0074] For example, as shown in Figure 5 and Figure 6 the impeller 22 can be integrally formed with six connecting parts 221. The impeller 22 is provided with a through hole through which the motor shaft 21 passes. The six connecting parts 221 can be arranged at intervals along the circumferential direction on the outer circumferential side of the through hole. Each connecting part 221 can be generally cylindrical. During assembly, the six connecting parts 221 can be connected and fixed with the isolation piece 3, thereby ensuring the stability of the fixation of the isolation piece 3.

[0075] In some embodiments, the connecting part 221 passes through the isolation piece 3 and is fixed with the isolation piece 3 by heat melting. For example, the material of the connecting part 221 can be plastic or the like. The isolation piece 3 can be provided with a through hole. Each connecting part 221 can pass through the corresponding through hole, and then the part of the connecting part 221 that passes through can be melted and connected with the isolation piece 3 by heat melting, thereby improving the convenience of assembly.

[0076] In some embodiments, the connecting portion 221 is integrally formed on the impeller 22. For example, the impeller 22 and the connecting portion 221 can be made of plastic, and the connecting portion 221 can be integrally formed on the impeller 22 by injection molding, thereby improving the processing convenience.

[0077] In some embodiments, the fan 2 includes a sealing ring 24, the outer side of the impeller 22 is provided with a protruding portion 224, the motor shaft passes through the protruding portion 224, the sealing ring 24 is sleeved on the outer circumferential side of the sealing ring 24, and the sealing ring 24 is clamped and fixed between the impeller 22 and the isolation piece 3.

[0078] For example, as shown in FIG. 2, the front side of the impeller 22 can be integrally formed with the protruding portion 224. The protruding portion 224 can be annular and can be provided on the outer circumferential side of the through hole through which the motor shaft 21 passes. The sealing ring 24 can be a rubber ring. When the isolation piece 3 is fixed on the impeller 22, the sealing ring 24 can be clamped and fixed between the impeller 22 and the isolation piece 3, thereby fully ensuring the circumferential sealing of the through hole through which the motor shaft 21 passes. Figure 6 In some embodiments, the isolation piece 3 is provided with a protruding portion 33 which protrudes outwardly of the impeller 22 and forms a avoiding groove on the inner side of the isolation piece 3, and the avoiding groove is used for inserting the extension portion 211.

[0079] For example, as shown in FIG. 2, the isolation piece 3 can be in a grass hat structure as a whole, the protruding portion 33 can be in a circular table shape and can be integrally formed on the isolation piece 3. The protruding portion 33 is provided at the center position of the isolation piece 3 and protrudes outwardly of the front side of the isolation piece 3. The part corresponding to the protruding portion 33 on the front side of the isolation piece 3 forms an avoiding groove, thereby achieving the effect of shielding and protecting the extension portion.

[0080] Figure 6 In some embodiments, the material of the impeller 22 is an insulating material, for example, the material of the impeller 22 is plastic, etc. Since the impeller 22 is directly connected with the motor shaft 21, the situation of electric leakage through the impeller 22 is avoided.

[0081] In some embodiments, the motor shaft 21 is a steel shaft. Therefore, the structural strength required for the rotation of the impeller 22 is fully met.

[0081] The following describes a specific example of the fan assembly of the utility model embodiment.

[0082] As shown in FIG. 1, the fan assembly 100 of the utility model embodiment includes a fan 2 and an isolation piece 3. The fan 2 includes a motor shaft 21 and an impeller 22. The impeller 22 is provided with a through hole through which the motor shaft 21 passes. The part of the motor shaft 21 passing through the impeller 22 constitutes an extension portion 211.

[0083] Figures 1 to 4

[0084] ​The connecting portion 221 can be integrally injection molded on the impeller 22, and the connecting portion 221 can be a circular ring column, the inner circumferential wall in the connecting portion 221 is provided with an internal thread, and the connecting portion 221 can be annularly arranged on the outer circumferential side of the extension portion 211 of the motor shaft 21.

[0085] The extension portion 211 of the motor shaft 21 is further provided with a fastener 23, and the fastener 23 is a nut, which is used to connect and fix the impeller 22 and the motor shaft 21.

[0086] The isolation piece 3 can be a cap-shaped structure, and the outer circumferential side of the isolation piece 3 is provided with an external thread, and when assembled, the isolation piece 3 is threadedly assembled in the connecting portion 221, and the extension portion 211 and the fastener 23 are both covered inside the isolation piece 3, thereby avoiding the exposure of non-insulating components such as the motor shaft 21 and the fastener 23, and improving the overall insulation protection effect. In addition, the assembly of the isolation piece 3 and the connecting portion 221 is convenient and convenient, and also facilitates subsequent maintenance and maintenance.

[0087] The following describes a specific example of a fan assembly according to another embodiment of the present application.

[0088] As shown in Figure 5 and Figure 6 The fan assembly 100 according to the embodiment of the present application includes a fan 2 and an isolation piece 3, wherein the fan 2 includes a motor shaft 21 and an impeller 22, the impeller 22 is provided with a through hole for the motor shaft 21 to pass through, the outer circumferential side of the through hole can be provided with a sealing ring 24, and the portion of the motor shaft 21 passing through the impeller 22 constitutes an extension portion 211.

[0089] The impeller 22 is further provided with a plurality of connecting portions 221 by integrally injection molding, each connecting portion 221 can be a cylindrical structure, and the plurality of connecting portions 221 can be arranged on the outer circumferential side of the through hole for the extension portion 211 to pass through and along the circumferential direction of the through hole.

[0090] The isolation piece 3 can be a straw hat-shaped structure, and the isolation piece 3 is provided with a plurality of through holes corresponding to the connecting portions 221.

[0091] When assembled, the sealing ring 24 can be first fixed on the outer circumferential side of the through hole of the impeller 22, then each connecting portion 221 can pass through the corresponding through hole on the isolation piece 3, and then the portion of the connecting portion 221 passing through the isolation piece 3 can be melted by heat melting and fixed with the isolation piece 3, and the sealing ring 24 can be clamped and fixed between the isolation piece 3 and the impeller 22, thereby ensuring the sealing between the two, and further ensuring the insulation and isolation effect of the isolation piece 3 on the extension portion 211. The following describes a drying equipment according to an embodiment of the present application.

[0092] The drying equipment in the embodiment of the utility model includes fan assembly 100, fan assembly 100 can be as the fan assembly 100 described in any one of the above embodiments. The drying equipment can be a washing and drying integrated machine, a dryer and the like.

[0093] In some embodiments, the drying equipment includes a cylinder body 200 for placing clothes, an extension part 211 extends to the cylinder body 200, and a separation piece 3 is arranged on the outer circumferential side of the extension part 211. For example, as shown in Figure 7 The cylinder body 200 can be an inner cylinder, the cylinder body 200 can be arranged on the front side of the fan assembly 100, and the distance between the rear wall of the cylinder body 200 and the above-mentioned extension part 211 can be L, the distance L is usually 20-25 mm. The close distance makes it easy to cause an electric leakage risk between the cylinder body 200 and the motor shaft 21, and the separation piece 3 arranged on the outer circumferential side of the extension part 211 has an insulation and separation effect, thereby greatly reducing the possibility of electric leakage and meeting the requirements of safety regulations in use.

[0094] In some embodiments, the cylinder body 200 has an air outlet communicated with the fan assembly 100, and the extension part 211 is located in a channel 300 for communicating the air outlet of the fan assembly 100 or in the cylinder body 200. For example, as shown in Figure 7 The annular channel 300 can be arranged between the impeller 22 and the cylinder body 200, the airflow discharged through the air outlet of the cylinder body 200 can be conveyed to the fan 2 through the channel 300, and the above-mentioned extension part 211 of the fan 2 can be located in the space surrounded by the channel 300. Thus, the channel 300 also has a shielding and protecting effect.

[0095] In other embodiments, the above-mentioned extension part 211 can also directly extend into the cylinder body 200, for example, can extend into the air outlet of the cylinder body 200.

[0096] Although the above-mentioned embodiments have been shown and described, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the changes, modifications, replacements and variations of the above-mentioned embodiments made by those skilled in the art are within the protection scope of the utility model.

Claims

1. A fan assembly, comprising: The fan assembly comprises: a fan comprising a motor shaft, the motor shaft comprising an extension part exposed at least partially; an insulation part insulated, the insulation part being arranged on the outer circumferential side of the extension part.

2. The fan assembly of claim 1, wherein, The insulation part is threadedly assembled with the fan.

3. The fan assembly of claim 2, wherein, The threadedly assembled direction of the insulation part and the fan is opposite to the rotating direction of the fan.

4. The fan assembly of claim 1, wherein, The fan comprises an impeller, the motor shaft passes through the hub of the impeller, the extension part is exposed from the side of the impeller facing the cylinder, and the insulation part is connected with at least one of the motor shaft and the impeller.

5. The fan assembly of any one of claims 1-4, wherein, The fan comprises an impeller, the impeller is provided with a connecting part, and the insulation part is connected with the impeller through the connecting part.

6. The fan assembly of claim 5, wherein, The connecting part is arranged on the outer circumferential side of the extension part, the connecting part extends along the circumferential direction of the extension part to close and enclose a groove, and at least part of the insulation part is assembled in the groove.

7. The fan assembly of claim 5, wherein, The insulation part is threadedly assembled with the connecting part.

8. The fan assembly of claim 7, wherein, The insulation part comprises a first section, the outer circumferential side of the first section is provided with external threads and an inner hole, the first section is threadedly assembled in the connecting part, and the inner hole is used for inserting the extension part.

9. The fan assembly of claim 8, wherein, The insulation part comprises a second section connected with the first section, at least part of the second section has a radial dimension greater than that of the first section, and the second section is used for abutting against the end face of the connecting part to limit the threadedly assembled depth of the insulation part.

10. The fan assembly of claim 5, wherein, The impeller is provided with a plurality of connecting parts, the plurality of connecting parts are arranged at intervals along the circumferential direction of the motor shaft, and each connecting part is connected with the insulation part.

11. The fan assembly of claim 10, wherein, The connecting part passes through the insulation part and is fixed with the insulation part by heat melting; and / or, the connecting part is integrally formed on the impeller.

12. The fan assembly of claim 10, wherein, The impeller is provided with a protruding part, the motor shaft passes through the protruding part, a sealing ring is arranged on the outer circumferential side of the sealing ring, and the sealing ring is clamped and fixed between the impeller and the insulation part.

13. The fan assembly of claim 10, wherein, The insulation part is provided with a protruding part, the protruding part protrudes outwardly of the impeller and forms a avoiding groove on the inner side of the insulation part, and the avoiding groove is used for inserting the extension part.

14. The fan assembly of any one of claims 1-4, wherein, The fan comprises an impeller and a fastener, the fastener is arranged on the outer circumferential side of the extension part and abuts against the impeller.

15. The fan assembly of any one of claims 1-4, wherein, The material of the impeller of the fan is an insulating material; and / or, the motor shaft is a steel shaft.

16. A clothes drying apparatus, characterized by, The fan assembly comprises any one of the fans according to claims 1-15. 17.The laundry drying apparatus of claim 16, wherein, The fan assembly comprises a cylinder for placing clothes, the extension part extends to the cylinder, and the insulation part is arranged on the outer circumferential side of the extension part. 18.The laundry drying apparatus of claim 17, wherein, The cylinder has an air outlet communicating with the fan assembly, and the extension part is located in the passage of the fan assembly for communicating with the air outlet or in the cylinder.

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