Fan assembly and clothes processing equipment
By setting the sealing ring on the motor shaft and fixing it relatively to the fan assembly of the clothing processing equipment, the problem of slow start and speed loss caused by the relative movement of the sealing ring and the motor shaft is solved, and a more efficient motor start and operation is achieved.
Patent Information
- Application Number
- CN202421953741.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In existing clothing processing equipment, the relative movement of the seal ring and the motor shaft leads to slow start of the motor and large speed loss.
A fan assembly is designed in which the sealing ring sleeve is arranged on the motor shaft and is relatively fixed to the motor shaft. When the motor shaft rotates, the sealing ring moves along with the motor shaft to avoid relative movement with the fan flange, thereby reducing the resistance to the motor starting.
By reducing the resistance of the sealing ring to the motor, the motor start-up can be accelerated and the speed loss can be reduced, thereby improving the operating efficiency of the equipment.
Smart Images
Figure CN223004185U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clothing treatment, in particular to a fan assembly and a clothing treatment device. Background Art
[0002] In the related art, for a clothing treatment device with laundry and drying functions, a sealing ring is arranged between the motor shaft and the fan flange to prevent the bubbles generated during the laundry process from entering the fan motor. The sealing ring is usually installed on the fan flange and is in tight fit with the motor shaft. When the motor works, the motor shaft overcomes the elastic force of the sealing ring and generates relative movement with the sealing ring, driving the fan impeller to rotate. However, due to the resistance of the sealing ring when the motor rotates, the motor starts slowly and has a large speed loss. Summary of the Utility Model
[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a fan assembly and a clothing treatment device.
[0004] A fan assembly provided in the first aspect of the utility model includes:
[0005] A fan flange, on which an installation hole is opened;
[0006] A fan main body, installed on the fan flange, the fan main body includes a motor, and the motor shaft of the motor passes through the installation hole;
[0007] A sealing ring, sleeved on the shaft section of the motor shaft passing through the installation hole and relatively fixed to the motor shaft. An annular oil groove with the notch facing the fan flange is formed on the sealing ring, and a sealing medium is filled in the annular oil groove.
[0008] In the fan assembly provided by the utility model, by sleeving a sealing ring on the shaft section of the motor shaft passing through the installation hole and the sealing ring is relatively fixed to the motor shaft, when the motor shaft rotates, the sealing ring moves together with the motor shaft, and the sealing ring makes relative movement with the fan flange. In the axial direction of the motor shaft, the sealing ring is relatively fixed to the motor shaft and forms a seal, so that bubbles cannot enter the motor along the axial direction; an annular oil groove with the notch facing the fan flange is formed on the sealing ring, and a sealing medium is filled in the annular oil groove. In the radial direction of the motor shaft, the sealing medium is used to block the bubbles outside the annular oil groove, so that the bubbles cannot enter the motor along the radial direction, thereby achieving the purpose of preventing bubbles from entering the motor; with such a setting, since the sealing ring moves together with the motor when the motor rotates and there is no relative movement between the two, the motor will not be resisted by the sealing ring when rotating, so the motor startup can be accelerated and the speed loss can be reduced, thus effectively solving the problem in the related art that the motor starts slowly and has a large speed loss due to the resistance of the sealing ring when the motor rotates.
[0009] In some embodiments, a wear-resistant washer is installed on the end face of the sealing ring located on the periphery of the annular oil groove, and the wear-resistant washer abuts against the end face of the fan flange around the mounting hole.
[0010] In some embodiments, an installation groove is formed on the end face of the sealing ring located on the periphery of the annular oil groove, and the wear-resistant washer is installed in the installation groove.
[0011] In some embodiments, a boss is formed on the end face of the fan flange around the mounting hole, and the boss extends into the annular oil groove.
[0012] In some embodiments, the boss is an annular boss arranged around the mounting hole;
[0013] And / or, there is a gap between the boss and the bottom wall of the annular oil groove.
[0014] In some embodiments, there are gaps between the boss and the inner peripheral groove wall of the annular oil groove and between the boss and the outer peripheral groove wall of the annular oil groove.
[0015] In some embodiments, the gap between the boss and the inner peripheral groove wall of the annular oil groove is greater than 0 mm and less than or equal to 3 mm, and the gap between the boss and the outer peripheral groove wall of the annular oil groove is greater than 0 mm and less than or equal to 3 mm.
[0016] In some embodiments, the sealing ring includes an inner peripheral wall, an outer peripheral wall, and a bottom wall connecting the inner peripheral wall and the outer peripheral wall, and the inner peripheral wall, the outer peripheral wall, and the bottom wall jointly form the annular oil groove;
[0017] The height of the inner peripheral wall along the axial direction of the motor shaft is greater than the height of the outer peripheral wall along the axial direction of the motor shaft.
[0018] In some embodiments, the sealing medium is grease.
[0019] A laundry treatment device provided in the second aspect of the present utility model includes a fan assembly as described in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model.
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 Structural schematic diagram of the fan assembly according to an embodiment of the present invention;
[0023] Figure 2 For Figure 1 Schematic cross-sectional structure diagram of the fan assembly shown in the A-A direction before installing the wind wheel;
[0024] Figure 3 For Figure 2 Partial enlarged structural schematic diagram of part B in
[0025] Figure 4 Schematic cross-sectional structure diagram of the sealing ring according to an embodiment of the present invention;
[0026] Figure 5 For Figure 1 Schematic cross-sectional structure diagram of the fan assembly shown in the A-A direction after installing the wind wheel.
[0027] Among them, 1. Fan flange; 11. Mounting hole; 12. Boss;
[0028] 2. Fan main body; 21. Motor; 211. Motor shaft; 22. Wind wheel;
[0029] 3. Sealing ring; 31. Annular oil groove; 32. Mounting groove; 33. Inner peripheral wall; 34. Outer peripheral wall; 35. Bottom wall;
[0030] 4. Wear-resistant washer;
[0031] 5. Sealing medium. Detailed implementation manners
[0032] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the following will further describe the solutions of the present invention. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0033] Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, rather than all the embodiments.
[0034] The following combines Figures 1 to 5A detailed description is given of the fan assembly and the laundry treatment equipment according to the embodiments of the present utility model.
[0035] Referring to Figures 1 to 5 As shown, a fan assembly provided by some embodiments of the present utility model includes a fan flange 1, a fan main body 2 and a sealing ring 3.
[0036] Among them, an installation hole 11 is formed on the fan flange 1; the fan main body 2 is installed on the fan flange 1, and the fan main body 2 includes a motor 21, and the motor shaft 211 of the motor 21 passes through the installation hole 11; the sealing ring 3 is sleeved on the shaft section where the motor shaft 211 passes through the installation hole 11 and is relatively fixed to the motor shaft 211. An annular oil groove 31 with the notch facing the fan flange 1 is formed on the sealing ring 3, and a sealing medium 5 is filled in the annular oil groove 31.
[0037] In the fan assembly provided by the embodiment of the present utility model, by sleeving the sealing ring 3 on the shaft section where the motor shaft 211 passes through the installation hole 11 and the sealing ring 3 is relatively fixed to the motor shaft 211, when the motor shaft 211 rotates, the sealing ring 3 moves together with the motor shaft 211, and the sealing ring 3 and the fan flange 1 move relatively. Axially of the motor shaft 211, a seal is formed between the sealing ring 3 and the motor shaft 211, so that air bubbles cannot enter the motor 21 axially; an annular oil groove 31 with the notch facing the fan flange 1 is formed on the sealing ring 3, and a sealing medium 5 is filled in the annular oil groove 31. Radially of the motor shaft 211, the air bubbles are blocked outside the annular oil groove 31 through the sealing medium 5, so that the air bubbles cannot enter the motor 21 radially, thereby achieving the purpose of preventing air bubbles from entering the motor 21; with such a setting, since the sealing ring 3 moves together with the motor 21 when the motor 21 rotates and there is no relative movement between the two, the motor 21 will not be resisted by the sealing ring 3 when rotating, so that the starting of the motor 21 can be accelerated and the speed loss can be reduced.
[0038] Specifically, in the related art, the sealing ring 3 is installed on the fan flange 1 and is in tight fit with the motor shaft 211. When the motor 21 operates, the motor shaft 211 overcomes the elastic force of the sealing ring 3 and has relative movement with the sealing ring 3. Since the motor 21 is subject to the resistance of the sealing ring 3 during rotation, the motor 21 starts slowly and has a large speed loss. When the perpendicularity of the motor shaft 211 to the mounting surface of the fan flange 1 is insufficient and the motor shaft 211 is skewed in the inner hole of the sealing ring 3, the contact between the motor shaft 211 and the sealing ring 3 is uneven, thereby increasing the resistance of the sealing ring 3 to the rotation of the motor 21. When the motor shaft 211 and the sealing ring 3 are not concentric, resulting in more contact on one side and less contact on the other side between the motor shaft 211 and the sealing ring 3, the eccentricity is increased, thereby increasing the resistance of the sealing ring 3 to the rotation of the motor 21. In the fan assembly provided by the embodiment of the present invention, the sealing ring 3 is sleeved on the motor shaft 211 and is relatively fixed to the motor shaft 211, so that the sealing ring 3 moves together with the motor 21 when the motor 21 rotates, and there is no relative movement between the two. Therefore, the motor 21 will not be subject to the resistance of the sealing ring 3 during rotation, thereby accelerating the start of the motor 21 and reducing the speed loss, effectively solving the problems in the related art that the motor 21 starts slowly and has a large speed loss due to the resistance of the sealing ring 3 during the rotation of the motor 21.
[0039] In a specific implementation, in order to prevent air bubbles from entering the annular oil groove 31 from the periphery of the sealing ring 3, the portion of the sealing ring 3 located outside the annular oil groove 31 can be in contact with the end surface of the fan flange 1 around the mounting hole 11, thereby forming a barrier structure outside the annular oil groove 31 to prevent air bubbles from entering the annular oil groove 31 from the periphery of the sealing ring 3. Specifically, the elastic force of the sealing ring 3 can be relied on to apply an axial force to the end surface of the fan flange 1 around the mounting hole 11 to achieve the contact between the portion of the sealing ring 3 located outside the annular oil groove 31 and the end surface of the fan flange 1 around the mounting hole 11. It should be noted that the axial force applied by the sealing ring 3 to the fan flange 1 does not need to be too large, and only needs to ensure good contact between the portion of the sealing ring 3 located outside the annular oil groove 31 and the end surface of the fan flange 1 around the mounting hole 11, so as to avoid the problem of increasing the resistance of the motor 21 rotation due to the excessive applied axial force. Of course, the portion of the sealing ring 3 located outside the annular oil groove 31 and the end surface of the fan flange 1 around the mounting hole 11 can also be only in contact or have a small gap, that is, there is no mutual force between the sealing ring 3 and the fan flange 1, which is also feasible.
[0040] In specific implementation, the sealing medium 5 can be grease. Since grease is insoluble in water, it can effectively block air bubbles outside the grease. Specifically, the sealing medium 5 can be relatively viscous grease, so that the sealing medium 5 can be retained in the annular oil groove 31, avoiding the risk that the sealing medium 5 is thrown out of the annular oil groove 31 under the action of centrifugal force when the motor 21 is working. Of course, the sealing medium 5 is not limited to grease, and other media that are insoluble in water and have a certain fluidity can also be used.
[0041] In some embodiments, referring to Figure 2 and Figure 3 as shown, a wear-resistant washer 4 is installed on the end face of the sealing ring 3 located on the periphery of the annular oil groove 31, and the wear-resistant washer 4 abuts against the end face of the fan flange 1 around the mounting hole 11. Compared with the sealing ring 3, the wear-resistant washer 4 has better wear resistance. By providing the wear-resistant washer 4, the wear-resistant washer 4 abuts against the end face of the fan flange 1, which can effectively protect the sealing ring 3 and avoid the risk that the end face of the sealing ring 3 directly abuts against the end face of the fan flange 1, resulting in wear of the sealing ring 3.
[0042] With such a setting, by the wear-resistant washer 4 abutting against the end face of the fan flange 1, air bubbles are blocked outside the annular oil groove 31 of the sealing ring 3, so that the air bubbles cannot enter the annular oil groove 31 and thus cannot enter the motor 21 radially. When a small amount of air bubbles enter the annular oil groove 31 of the sealing ring 3 through the abutting position between the wear-resistant washer 4 and the fan flange 1, since the annular oil groove 31 is filled with the sealing medium 5, the air bubbles are blocked outside the sealing medium 5, realizing the second line of defense to prevent air bubbles from entering the interior of the motor 21. In addition, when the motor 21 is working, the sealing medium 5 in the annular oil groove 31 is affected by centrifugal force, and the air bubbles can also be squeezed out of the annular oil groove 31 by the centrifugal force of the sealing medium 5.
[0043] In specific implementation, a certain axial force can be applied to the wear-resistant washer 4 through the elastic force of the sealing ring 3, so that the wear-resistant washer 4 can form good contact with the end face of the fan flange 1, thereby avoiding air bubbles from entering the annular oil groove 31 from the contact position between the two. It should be noted that the axial force applied by the sealing ring 3 to the wear-resistant washer 4 does not need to be too large, and only needs to ensure good contact between the wear-resistant washer 4 and the end face of the fan flange 1, so as to avoid the problem that the applied axial force is too large and increases the resistance of the motor 21 to rotate.
[0044] In some embodiments, referring to Figure 2 、 Figure 3 and Figure 4 as shown, an installation groove 32 is formed on the end face of the sealing ring 3 located on the periphery of the annular oil groove 31, and the wear-resistant washer 4 is installed in the installation groove 32. With such a setting, the firmness and convenience of the installation of the wear-resistant washer 4 on the sealing ring 3 can be ensured.
[0045] In a specific implementation, the installation groove 32 can be arranged to penetrate the outer peripheral wall 34 of the sealing ring 3, that is, the installation groove 32 is arranged at the outer peripheral edge of the end face of the sealing ring 3. This arrangement makes the processing of the installation groove 32 more convenient.
[0046] In some embodiments, referring to Figure 2 and Figure 3 As shown, a boss 12 is formed on the end face of the fan flange 1 around the installation hole 11, and the boss 12 extends into the annular oil groove 31. This arrangement is used to form a bubble-blocking structure with the boss 12 to prevent bubbles from entering the side close to the motor shaft 211 from the side of the boss 12 away from the motor shaft 211, so as to better prevent bubbles from entering the motor 21.
[0047] In some embodiments, referring to Figure 2 and Figure 3 As shown, the boss 12 is an annular boss 12 arranged around the installation hole 11 to form a circumferential bubble-blocking structure around the motor shaft 211, so as to more effectively prevent bubbles from entering the side close to the motor shaft 211 from the side of the annular boss 12 away from the motor shaft 211. Of course, the boss 12 is not limited to being an annular boss 12, and can also be a plurality of spaced ones.
[0048] In some embodiments, referring to Figure 2 and Figure 3 As shown, there is a gap between the boss 12 and the bottom wall of the annular oil groove 31, so that when the motor shaft 211 rotates, the boss 12 can move relative to the sealing medium 5 in the annular oil groove 31. That is, the setting of the boss 12 does not affect the rotation of the motor shaft 211 relative to the fan flange 1. The gap between the boss 12 and the bottom wall of the annular oil groove 31 is not specifically limited, as long as it is ensured that the boss 12 can move relative to the sealing medium 5 in the annular oil groove 31.
[0049] In some embodiments, referring to Figure 2 and Figure 3 As shown, there are gaps between the boss 12 and the inner peripheral groove wall of the annular oil groove 31 and between the boss 12 and the outer peripheral groove wall of the annular oil groove 31. With this arrangement, when the motor shaft 211 and the fan flange 1 are not concentric and the motor shaft 211 is offset or skewed relative to the fan flange 1, the boss 12 will not interfere with the inner peripheral groove wall and the outer peripheral groove wall of the annular oil groove 31 to generate resistance.
[0050] In some embodiments, the gap between the boss 12 and the inner peripheral groove wall of the annular oil groove 31 is greater than 0 mm and less than or equal to 3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc.; the gap between the boss 12 and the outer peripheral groove wall of the annular oil groove 31 is greater than 0 mm and less than or equal to 3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc.
[0051] With such a setting, it is ensured that there are gaps between the boss 12 and both the inner peripheral groove wall and the outer peripheral groove wall of the annular oil groove 31, and at the same time, the problem that the size of the annular oil groove 31 needs to be set larger due to too large a gap, resulting in an increase in the size of the sealing ring 3, is avoided.
[0052] It should be noted that in specific implementation, it is also feasible not to provide the boss 12 on the end face of the fan flange 1.
[0053] In some embodiments, referring to Figure 3 and Figure 4 as shown, the sealing ring 3 includes an inner peripheral wall 33, an outer peripheral wall 34, and a bottom wall 35 connecting the inner peripheral wall 33 and the outer peripheral wall 34. The inner peripheral wall 33, the outer peripheral wall 34, and the bottom wall 35 together form the annular oil groove 31; wherein, the height of the inner peripheral wall 33 along the axial direction of the motor shaft 211 is greater than the height of the outer peripheral wall 34 along the axial direction of the motor shaft 211.
[0054] Specifically, the inner peripheral wall 33 of the sealing ring 3 is sleeved on the motor shaft 211 and can be in a tight fit with the motor shaft 211 to realize the installation and fixation of the sealing ring 3 on the motor shaft 211 and ensure an axial seal between the sealing ring 3 and the motor shaft 211; and, the height of the inner peripheral wall 33 along the axial direction of the motor shaft 211 is set to be greater than the height of the outer peripheral wall 34 along the axial direction of the motor shaft 211 to ensure the reliability of the installation and seal of the sealing ring 3 with the motor shaft 211.
[0055] It should be noted that in specific implementation, referring to Figure 5 as shown, the fan main body 2 may further include a wind wheel 22. The wind wheel 22 is arranged on the side of the fan flange 1 facing away from the motor 21 and is installed on the motor shaft 211 to drive the wind wheel 22 to rotate through the motor 21. Specifically, the wind wheel 22 can be installed in the air duct of the laundry treatment device to supply air to the air duct through the rotation of the wind wheel 22 to realize the function of drying clothes.
[0056] Another embodiment of the present utility model provides a laundry treatment device, including the fan assembly as in any of the above embodiments.
[0057] The clothing treatment device provided by the embodiment of the present utility model includes the blower assembly of any one of the above embodiments, and thus has the beneficial effects of the blower assembly of any one of the above embodiments, which will not be elaborated here. The clothing treatment device may specifically be a clothes dryer, a washing and drying integrated machine, etc., and more specifically may be a drum-type washing and drying integrated machine.
[0058] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0059] The above are only specific embodiments of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments described herein, but rather will conform to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fan assembly, characterized in that: include: A fan flange, wherein a mounting hole is provided on the fan flange; A fan body is mounted on the fan flange, the fan body comprising a motor, and a motor shaft of the motor passes through the mounting hole; The sealing ring is sleeved on the shaft section of the motor shaft passing through the mounting hole and is relatively fixed to the motor shaft. The sealing ring is formed with an annular oil groove with a notch facing the fan flange, and the annular oil groove is filled with a sealing medium.
2. The fan assembly according to claim 1, characterized in that: A wear-resistant gasket is installed on the end surface of the sealing ring located at the periphery of the annular oil groove, and the wear-resistant gasket abuts against the end surface of the fan flange located around the mounting hole.
3. The fan assembly according to claim 2, characterized in that: The sealing ring is provided with a mounting groove on its end surface located at the periphery of the annular oil groove, and the wear-resistant gasket is mounted in the mounting groove.
4. The fan assembly according to claim 1, characterized in that: A boss is formed on the end surface of the fan flange around the mounting hole, and the boss extends into the annular oil groove.
5. The fan assembly according to claim 4, characterized in that: The boss is an annular boss arranged around the mounting hole; And / or, there is a gap between the boss and the bottom wall of the annular oil groove.
6. The fan assembly according to claim 4, characterized in that: There is a gap between the boss and the inner groove wall of the annular oil groove, and there is a gap between the boss and the outer groove wall of the annular oil groove.
7. The fan assembly according to claim 6, characterized in that: The gap between the boss and the inner groove wall of the annular oil groove is greater than 0 mm and less than or equal to 3 mm, and the gap between the boss and the outer groove wall of the annular oil groove is greater than 0 mm and less than or equal to 3 mm.
8. The fan assembly according to any one of claims 1 to 7, characterized in that: The sealing ring comprises an inner peripheral wall, an outer peripheral wall and a bottom wall connecting the inner peripheral wall and the outer peripheral wall, wherein the inner peripheral wall, the outer peripheral wall and the bottom wall together form the annular oil groove; The height of the inner peripheral wall along the axial direction of the motor shaft is greater than the height of the outer peripheral wall along the axial direction of the motor shaft.
9. The fan assembly according to any one of claims 1 to 7, characterized in that: The sealing medium is grease.
10. A clothes processing device, characterized in that: Comprising a fan assembly as claimed in any one of claims 1 to 9.