Buffer member for motor, and motor assembly and cleaning device comprising same
By designing bendable buffer members in cleaning equipment, providing compliance support in the axial direction and rigid support in the radial direction, the problem of unsatisfactory vibration and noise reduction effects of existing buffer members is solved, and significant vibration and noise reduction effects are achieved.
Patent Information
- Application Number
- CN202421421289.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing buffers have poor vibration and noise reduction effects in cleaning equipment, resulting in motor vibration and noise transmission, affecting the user experience.
A bendable buffer member is designed to provide compliance support in the axial direction and rigid support in the radial direction by providing a buffer member between the motor and the motor housing to absorb and reduce vibration and noise.
It effectively absorbs the vibration of the motor in the axial direction, reduces noise transmission, and improves the stability and noise reduction effect of the motor.
Smart Images
Figure CN223124707U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a buffer for a motor, and a motor assembly and a cleaning device including such a buffer. Background Art
[0002] Currently, cleaning devices (such as vacuum cleaners, floor sweeping robots, floor washing machines, etc.) generally use motors as drive devices to generate power for cleaning operations. During the operation of the cleaning device, the motor generates vibrations in various frequency bands, and these vibrations are transmitted through the structure of the cleaning device and / or through the air flow, thereby generating noise, which greatly reduces the user experience. Generally, the motor is axially disposed between a motor cover and a motor housing. In order to absorb and reduce the vibrations and noise of the motor, buffers are often provided to hold the motor between the motor cover and the motor housing, such as buffers located between the motor cover and the motor, and buffers located between the motor and the motor housing. However, the vibration damping and noise reduction effects of existing buffers are not ideal.
[0003] Therefore, a solution that can overcome the above defects is needed to improve the vibration damping and noise reduction effects of the buffer. Summary of the Utility Model
[0004] The present disclosure aims to propose a better solution to the above problems, so as to stably hold the motor in place and reduce noise.
[0005] According to a first aspect of the present disclosure, there is provided a buffer for a motor, the buffer being disposed between the motor and a motor housing, and the buffer being configured to support the motor and reduce vibrations generated by the motor, wherein the motor defines an axial direction. The buffer includes a first side in contact with the motor and a second side opposite to the first side. The buffer is configured to be bendable when subjected to a force in the axial direction.
[0006] By means of such a buffer, vibrations in the axial direction of the motor are not directly transmitted to the motor housing. Instead of providing a rigid support in the axial direction in the prior art, such a buffer provides a compliant support to the motor in the axial direction. In other words, when subjected to a force in the axial direction, the buffer can deform to allow a certain degree of vibration of the motor in the axial direction, thereby absorbing the vibrations of the motor in the axial direction.
[0007] According to some embodiments of the present disclosure, the buffer is configured to remain in place when subjected to a force in the radial direction, wherein the radial direction is perpendicular to the axial direction.
[0008] In this way, the buffer member located between the motor and the motor housing can provide rigid support to the motor in the radial direction and compliant support to the motor in the axial direction. The rigid support in the radial direction can keep the motor in place, and the compliant support in the axial direction can reduce the transmission of the motor's vibration to the motor housing, thereby reducing the transmission of noise. Thus, the buffer member according to the present disclosure can achieve significantly improved vibration damping and noise reduction effects.
[0009] According to some embodiments of the present disclosure, the thickness of the buffer member in the axial direction is configured such that a gap is formed between the second side of the buffer member and the motor housing in the assembled state to allow the buffer member to bend towards the motor housing.
[0010] According to some embodiments of the present disclosure, the buffer member includes a groove on the first side, which accommodates and holds at least a part of the motor and reduces the stiffness of the buffer member in the axial direction.
[0011] According to some embodiments of the present disclosure, the buffer member includes at least one protrusion in the groove to hold the motor.
[0012] According to some embodiments of the present disclosure, the shape of the protrusion is selected from a parallelepiped shape, a cylindrical shape, or a hemispherical shape.
[0013] According to some embodiments of the present disclosure, the buffer member includes support ribs on the second side for contacting the motor housing, and the support ribs are positioned to be able to hold the axial position of the motor.
[0014] According to some embodiments of the present disclosure, the support ribs include a plurality of arms that extend perpendicular to the axial direction. In some embodiments, the angle between two adjacent arms is the same. In some embodiments, the support ribs include three arms, and the angle between two adjacent arms is 120 degrees. In some other embodiments, the support ribs include four arms, and the angle between two adjacent arms is 90 degrees. In still some other embodiments, the support ribs include five arms, and the angle between two adjacent arms is 72 degrees. In some embodiments, the support ribs are generally in an "X" shape. In some embodiments, the support ribs are generally in a cross shape.
[0015] According to some embodiments of the present disclosure, the support ribs are located at the central position of the buffer member.
[0016] According to some embodiments of the present disclosure, the buffer member includes at least one notch at the corners of the outer perimeter to define the radial position of the motor and the buffer member.
[0017] According to some embodiments of the present disclosure, the buffer member is made of an elastic material.
[0018] According to some embodiments of the present disclosure, the buffer member has a shape selected from a parallelepiped shape, a cylindrical shape, or a prismatic shape.
[0019] According to another aspect of the present disclosure, a motor assembly is further provided, which includes: a motor; a motor housing for accommodating the motor; and any one of the buffer members as described above, the buffer member being located between the motor and the motor housing. A gap is formed between the buffer member and the motor housing to allow the buffer member to bend towards the motor housing.
[0020] According to some embodiments of the present disclosure, support ribs are provided on a side of the motor housing facing the buffer member.
[0021] According to still another aspect of the present disclosure, a cleaning device is further provided, which includes the motor assembly as described above.
[0022] With reference to the embodiments described below, these and other aspects of the present disclosure will become clear and be elucidated. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] For a better understanding of the present disclosure and to more clearly illustrate how to implement the present disclosure, reference is now made, by way of example only, to the accompanying drawings, in which:
[0024] Figure 1 Schematically shows an exploded view of a motor assembly according to an embodiment of the present disclosure;
[0025] Figure 2 Schematically shows a cross-sectional view of a motor assembly in an assembled state according to an embodiment of the present disclosure;
[0026] Figure 3 Schematically shows a simplified schematic view of a part of a motor, a buffer member, and a motor housing according to an embodiment of the present disclosure;
[0027] Figure 4 Schematically shows a perspective view of a buffer member according to an embodiment of the present disclosure; and
[0028] Figure 5 Schematically shows a perspective view of a buffer member according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The present disclosure will be described below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, although indicating exemplary embodiments of the buffer member, the motor assembly, and the cleaning device, are only for illustrative purposes and are not intended to limit the scope of the present disclosure. These and other features, aspects, and advantages of the buffer member, the motor assembly, and the cleaning device of the present disclosure can be better understood in conjunction with the following description, the appended claims, and the drawings. It should be understood that the drawings are merely schematic and not drawn to scale. It should also be understood that the same reference numerals represent the same or similar components throughout the drawings.
[0030] The present disclosure provides an improved cleaning device (not shown in the drawings), which provides improved vibration damping and noise reduction effects. The cleaning device includes a motor assembly for providing power to perform cleaning operations. The cleaning device can be a vacuum cleaner (such as a handheld vacuum cleaner), a floor washer, a floor sweeping robot, etc.
[0031] Figure 1 A disassembled view of a motor assembly 1 according to an embodiment of the present disclosure is shown. The motor assembly 1 includes a motor 10 and a motor housing 20 for accommodating the motor 10. The motor assembly 1 may further include a motor cover 40. The motor housing 20 and the motor cover 40 can support the motor 10 and protect the motor 10 from external environmental factors such as dust and moisture. The motor assembly 1 further includes a buffer member 100 located between the motor 10 and the motor housing 20. The buffer member 100 is configured to support the motor 10 and reduce the vibration generated by the motor 10. The motor 10 can be any suitable type of motor, such as a motor for driving a fan and / or a high-speed motor. The motor 10, the motor housing 20, and the motor cover 40 can have any suitable shape, not limited to those shown in the figures.
[0032] Figure 2 A cross-sectional view shows the motor assembly 1 in an assembled state. As Figure 2 shown, the motor 10 defines an axial direction A. Specifically, the axial direction A is defined by the shaft of the motor 10. The motor 10 is held between the motor housing 10 and the motor cover 40. Specifically, one end of the motor 10 is held within the motor housing 20 ( Figure 2 the right end in Figure 2 ), and the other end of the motor 10 ( Figure 2 the left end in
[0033] is held within the motor cover 40. The buffer member 100 is disposed between the motor 10 and the motor housing 20. Specifically, as Figure 3 shown, the buffer member 100 is located between the right end of the motor 10 and the motor housing 20. Figure 3 For a clearer illustration, Figure 3As shown in the schematic diagram on the right side of the figure, the buffer member 100 is configured to be bendable when a force in the axial direction A is applied. Specifically, the top and bottom ends of the buffer member 100 can be bent towards the motor housing. For example, when the motor vibrates, a force in the axial direction is applied to the buffer member 100, and at this time, the buffer member 100 bends to a certain extent, so that the force in the axial direction can be avoided from being transmitted to the motor housing. In this way, the transmitted vibration and noise can be reduced.
[0034] In some embodiments, the buffer member 100 is configured to remain in place when a force in the radial direction is applied, where the radial direction is perpendicular to the axial direction A. Thus, the high stiffness of the buffer member 100 in the radial direction is maintained, so that the force in the radial direction applied by the motor is directly transmitted to the motor housing, and the motor is held in place through the motor housing.
[0035] In some embodiments, the thickness of the buffer member 100 in the axial direction A is configured such that a gap 30 is formed between the second side 120 of the buffer member and the motor housing 20 in the assembled state to allow the buffer member 100 to bend towards the motor housing 20. The gap 30 provides space for the buffer member 100 to bend.
[0036] In some embodiments, the buffer member 100 includes a groove 111 on the first side 110. The groove 111 accommodates and holds at least a part of the motor, and the groove can reduce the stiffness of the buffer member 100 in the axial direction A, thereby helping the buffer member 100 to bend when a force in the axial direction A is applied. The groove 111 can be formed by removing material from the buffer member 100 or integrally molded with the buffer member by molding. In this way, the stiffness of the buffer member 100 in the axial direction can be reduced.
[0037] In some embodiments, the buffer member 100 includes support ribs 121 on the second side 120 for contacting the motor housing 20. The support ribs 121 are positioned to be able to maintain the axial position of the motor. As Figure 3 shown, the support ribs 121 are located in the gap 30 and can support against the motor housing 20. The support ribs 121 can be integrally molded with the buffer member 100 or attached to the buffer member 100 in any suitable manner.
[0038] Figures 4 - 5 A perspective view of the buffer member 100 is schematically shown. In some embodiments, the buffer member is made of an elastic material, such as plastic. The general shape of the buffer member 100 can be selected from a parallelepiped shape, a cylindrical shape, a prismatic shape, and any other suitable shape.
[0039] In some embodiments, the buffer member 100 may include at least one protrusion 112 in the groove 111 to hold the motor. As Figure 4As shown, the buffer member 100 includes four protruding portions 112. The shape of the protruding portion 112 is not limited to that shown in the figure, but can have any shape suitable for holding the motor. In some embodiments, the buffer member 100 may also include protruding portions 112 in a cross shape. In other embodiments, the protruding portion 112 may be cuboid, cylindrical, hemispherical, or any other suitable shape for positioning.
[0040] In some embodiments, the buffer member 100 includes at least one notch 130 at the corners of the outer perimeter to define the radial position of the motor relative to the buffer member 100. As Figure 4 shown, the buffer member 100 includes four notches 130 at four corners respectively to firmly hold the motor. In this way, the buffer member 100 can provide high stiffness in the radial direction to hold the motor radially.
[0041] Figure 5 Shown in the figure are support ribs 121 on the second side 120 of the buffer member 100. The support ribs 121 may be located at the central position of the buffer member. In some embodiments, the support ribs 121 include multiple arms that extend perpendicular to the axial direction A. The arms may extend from the central position of the buffer member towards the edge of the buffer member. In some embodiments, the angle between two adjacent arms is the same. In some embodiments, the support ribs include three arms, and the angle between two adjacent arms is 120 degrees. In other embodiments, the support ribs include four arms, and the angle between two adjacent arms is 90 degrees. In still other embodiments, the support ribs include five arms, and the angle between two adjacent arms is 72 degrees. In some embodiments, the support ribs may generally be in an "X" shape as a whole. In some embodiments, the support ribs may generally be in a cross shape.
[0042] In some embodiments, the support ribs 121 may also be provided on the side of the motor housing facing the buffer member instead of on the buffer member 100. In such cases, the support ribs 121 provided on the motor housing may support against the buffer member.
[0043] In the process of implementing the claimed utility model, those skilled in the art can understand and implement variations of the disclosed embodiments by studying the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. Features recited in different dependent claims or embodiments may be combined as long as it is technically feasible.
[0044] The foregoing description has been described with reference to specific embodiments. However, the above illustrative discussion is not intended to be exhaustive or to limit the disclosure to the precise forms described. Many modifications and variations are possible in light of the above teachings. Thus, other technical personnel in the field can best utilize the technology and various embodiments with various modifications suitable for various uses.
[0045] Although the present disclosure and examples have been described with reference to the accompanying drawings, various changes and modifications will become apparent to those skilled in the art. These changes and modifications should be understood to be included within the scope of the present disclosure.
Claims
1. A buffer (100) for a motor (10), characterized in that, The buffer member (100) is disposed between the motor (10) and the motor housing (20), and the buffer member (100) is configured to support the motor (10) and reduce vibrations generated by the motor (10), wherein the motor defines an axial direction (A), the buffer member (100) includes a first side (110) in contact with the motor (10) and a second side (120) opposite to the first side (110), and the buffer member (100) is configured to be bendable when a force is applied along the axial direction (A).
2. The buffer member (100) according to claim 1, characterized in that, The buffer member (100) is configured to remain in place when a force is applied along a radial direction perpendicular to the axial direction (A).
3. The buffer member (100) according to claim 1, characterized in that, The thickness of the buffer member along the axial direction (A) is configured such that a gap (30) is formed between the second side of the buffer member and the motor housing in the assembled state to allow the buffer member (100) to bend towards the motor housing (20).
4. The buffer member (100) according to claim 1, characterized in that, The buffer member includes a groove (111) on the first side (110), and the groove (111) accommodates and holds at least a portion of the motor and reduces the stiffness of the buffer member in the axial direction (A).
5. The buffer member (100) according to claim 4, characterized in that, The buffer member includes at least one protrusion (112) in the groove to hold the motor.
6. The buffer member (100) according to claim 5, characterized in that, The shape of the protrusion is selected from a parallelepipedal shape, a cylindrical shape, or a hemispherical shape.
7. The buffer member (100) according to any one of claims 1-6, characterized in that, The buffer member includes support ribs (121) on the second side (120) for contacting the motor housing, and the support ribs (121) are positioned to be able to hold the axial position of the motor.
8. The buffer member (100) according to claim 7, characterized in that, The support ribs (121) include a plurality of arms extending perpendicular to the axial direction (A).
9. The buffer member (100) according to claim 7, characterized in that, The support ribs (121) are located at the central position of the buffer member.
10. The buffer member (100) according to any one of claims 1-6, characterized in that, The buffer member includes at least one notch (130) at the corners of the outer perimeter to define the radial positions of the motor (10) and the buffer member (100).
11. The buffer member (100) according to any one of claims 1-6, characterized in that, The buffer member is made of an elastic material.
12. The buffer member (100) according to any one of claims 1-6, characterized in that, The buffer member has a shape selected from a parallelepipedal shape, a cylindrical shape, or a prismatic shape.
13. A motor assembly (1), characterized in that, It includes: a motor (10); a motor housing (20) for accommodating the motor (10); and at least one buffer member (100) according to any one of claims 1 - 12, the buffer member being located between the motor and the motor housing, and a gap being formed between the buffer member and the motor housing to allow the buffer member to bend towards the motor housing.
14. The motor assembly (1) according to claim 13, characterized in that, Support ribs (121) are provided on the side of the motor housing facing the buffer member.
15. A cleaning device, characterized in that, The cleaning device includes a motor assembly (1) according to any one of claims 13 - 14.