Vibration damping member and motor assembly
The vibration damping member absorbs and dissipates kinetic energy from a floating load, improving motor stability and durability by reducing vibration transmission to the output shaft.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- SHANGHAI LUOBO TECHNOLOGY CO LTD
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-23
AI Technical Summary
Vibration from a floating load is directly transmitted to a motor, potentially damaging internal components and reducing performance.
A vibration damping member with a first connection portion connected to the external load, a buffer portion with elasticity, and a second connection portion connected to the output shaft, designed to absorb and dissipate kinetic energy from impacts.
Significantly reduces vibration transmission to the output shaft, enhancing motor stability, durability, and extending service life while reducing maintenance costs.
Smart Images

Figure 0003256702000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of motors, and particularly to motor assemblies.
Background Art
[0002] In the application of micro reduction motors and small reduction motors, when the output shaft is connected only to a load that is not fixed and floating in the air, if the load is subjected to an external force impact such as vibration or dropping, its kinetic energy is directly transmitted to the inside of the motor. The members of the motor may be damaged by the impact, further reducing the performance of the motor, and in severe cases, the motor may even fail.
Summary of the Invention
Problems to be Solved by the Invention
[0003] The present invention has been made in view of the above conventional situation, and the present application provides a vibration damping member and a motor assembly that can improve the problem that the vibration of the load is directly transmitted to the motor while the motor is connected to a floating load.
Means for Solving the Problems
[0004] The vibration damping member according to the present invention includes a first connection portion, a buffer portion, and a second connection portion connected in sequence. The first connection portion is connected to an external load, the second connection portion is connected to the output shaft of the drive assembly, and the buffer portion has elasticity. Preferably, the buffer portion surrounds the output shaft and is provided at a distance from the output shaft. Preferably, the buffer portion exhibits a multi-layer winding structure, and two adjacent layers of the buffer portion are provided at a distance from each other. Preferably, the buffer portion exhibits a bent structure and may have a plurality of folding portions. Preferably, the first connection portion has a bent structure that sandwiches the external load. Preferably, the second connection portion sandwiches the output shaft or is wound around the output shaft. Preferably, the first connection is bonded to an external load, and / or the second connection is bonded to the output shaft. Preferably, the first connecting portion, the buffer portion, and the second connecting portion are integrally molded. Preferably, the vibration damping member is a metal spring plate. The motor assembly according to the present invention includes the vibration damping member, is provided with the output shaft, and the vibration damping member is connected to the output shaft. [Effects of the Invention]
[0005] The vibration damping member according to this invention includes a first connecting portion, a buffer portion, and a second connecting portion connected in order, the first connecting portion being connected to an external load, the second connecting portion being connected to the output shaft of the drive assembly, and the buffer portion being elastic. As a result, the external load does not need to be directly connected to the output shaft, but is connected via the vibration damping member. When the load is subjected to vibration or impact such as dropping, its kinetic energy is first transmitted to the vibration damping member, and the buffer portion, due to its elastic design, deforms when subjected to impact and returns to its original shape when the impact is removed, thereby significantly reducing the vibration transmitted to the output shaft, and the vibration transmitted to the output shaft of the drive assembly becomes almost negligible. Specifically, the drive assembly may be a micromotor assembly or a small motor assembly, and the design of the vibration damping member can improve the stability and durability of the motor assembly, reduce maintenance costs, and extend the service life of the motor. [Brief explanation of the drawing]
[0006] To more clearly explain the technical means in the embodiments of this application, a brief introduction is provided below using the necessary drawings for the description of the embodiments. Naturally, the drawings described below are merely examples of embodiments of this application, and those skilled in the art can conceive of other drawings based on these without requiring any creative effort. To fully understand the present invention and its beneficial effects, the following explanation will be given with reference to the drawings, and in the following explanation, the same reference numerals refer to the same parts. [Figure 1] This is a schematic diagram showing the overall configuration of the motor assembly relating to the present invention. [Figure 2] This is an exploded view showing the motor assembly relating to the present invention. [Figure 3] This is a schematic diagram showing the overall configuration of the vibration damping member related to the present invention. [Figure 4] This is a cross-sectional view showing the motor assembly relating to the present invention. [Modes for carrying out the invention]
[0007] Preferred embodiments of the present application will be described in detail below with reference to the drawings. In the following description, the same reference numerals are used for the same components, and redundant descriptions are omitted. Also, the drawings are only schematic, and the dimensional ratios between components or the shapes of the components may differ from those of actual components. Furthermore, all directional indications in the embodiments of the present application (e.g., up, down, left, right, front, back, etc.) merely interpret the relative positional relationships and movement patterns between components in a particular orientation, and if that particular orientation changes, the directional indications will also change accordingly. Furthermore, when one element (component) is said to be "fixed" or "attached" to another element (component), it may be directly located to the other element, or an intervening element may be present at the same time. When one element is said to be "connected" to another element, it may be directly connected to the other element, or an intervening element may be present at the same time.
[0008] As shown in Figures 1 to 4, the vibration damping member 1 according to the present invention includes a first connecting portion 11, a buffer portion 12, and a second connecting portion 13 connected in order, the first connecting portion 11 being connected to an external load 100, the second connecting portion 13 being connected to the output shaft 4 of the drive assembly DA, and the buffer portion 12 being elastic. According to the above structure, when the vibration damping member 1 of this application is used, the external load 100 does not need to be directly connected to the output shaft 4, but is connected via the vibration damping member 1. When the load 100 is subjected to vibration or impact such as dropping, its kinetic energy is first transmitted to the vibration damping member 1, and the cushioning part 12, due to its elastic design, deforms when subjected to impact and returns to its original shape when the impact is removed, thereby significantly reducing the vibration transmitted to the output shaft 4, and the vibration transmitted to the output shaft 4 of the drive assembly DA can be almost ignored. Specifically, the drive assembly DA may be a micromotor assembly or a small motor assembly, and the design of the vibration damping member 1 can improve the stability and durability of the motor assembly, reduce maintenance costs, and extend the service life of the motor.
[0009] As shown in Figure 3, in some embodiments, the buffer portion 12 is provided around the output shaft 4 and at a distance from the output shaft 4. This ensures that the buffer portion 12 does not directly contact the output shaft 4, thereby preventing the impact received by the buffer portion 12 from being transmitted to the output shaft 4. In some embodiments, the buffer portion 12 exhibits a multilayer circumferential structure, and two adjacent buffer portions 12 are spaced apart. Thus, the buffer portion 12 may be of the spring type, continuously circling the output shaft 4 and having a helical structure. In this way, the buffer portion 12 can be made sufficiently long, and the kinetic energy of the external load 100 is transmitted from the first connection portion 11 to the buffer portion 12, and the long buffer portion 12 can continuously absorb the kinetic energy, so the kinetic energy transmitted to the second connection portion 13 and the output shaft 4 can be almost ignored, and the vibration damping effect is further improved. In addition, the multilayer circumferential structure of the buffer portion 12 makes the overall structure of the buffer portion 12 more compact and reduces the space occupied. Specifically, in this embodiment, the first connection portion 11 may be located at the outer peripheral end of the buffer portion 12 exhibiting a multilayer circumferential structure, and the second connection portion 13 may be located at the center of the buffer portion 12 exhibiting a multilayer circumferential structure. In some embodiments, the cushioning portion 12 may have a curved structure and multiple folded portions. Specifically, in this embodiment, the cushioning portion 12 may be wavy, and such a wavy structure allows the cushioning portion 12 to deform when subjected to impact. For example, the cushioning portion 12 absorbs and disperses energy by generating elastic compression, thereby having an excellent vibration damping effect.
[0010] As shown in Figure 3, in some embodiments, the first connecting portion 11 has a bent structure that clamps a part of the external load 100 (the clamped portion 102). Specifically, the first connecting portion 11 is also elastic, and the elastic restoring force of the bent structure can firmly clamp the external load 100, thereby making the clamping connection method easier and faster and more convenient for operation. In some embodiments, the first connection portion 11 may be bonded to the external load 100, thereby further improving the stability of the connection between the first connection portion 11 and the external load 100. In some embodiments, the second connecting portion 13 either clamps the output shaft 4 or wraps around the output shaft 4. Specifically, the second connecting portion 13 also has elasticity, and the output shaft 4 can be firmly clamped by the elastic restoring force of the second connecting portion 13. Alternatively, the second connecting portion 13 may be connected to the output shaft 4 by wrapping, which increases the contact area with the output shaft 4 and makes the connection more stable.
[0011] In some embodiments, the second connecting portion 13 is bonded to the output shaft 4, thereby further improving the stability of the connection between the second connecting portion 13 and the output shaft 4. In some embodiments, the second connecting portion 13 may be screwed onto the output shaft 4. In some embodiments, the first connecting portion 11, the buffer portion 12, and the second connecting portion 13 are integrally molded. This integral molding design strengthens the connection strength between each component, improving the stability and reliability of the vibration damping member 1. In some embodiments, the vibration damping member 1 is a metal spring plate. This allows the metal spring plate to effectively absorb and disperse energy by having excellent elasticity, deforming when subjected to impact, and quickly returning to its original shape once the impact is gone, thereby reducing the impact on the motor's internal components. Furthermore, the metal spring plate has higher strength and durability, maintaining performance over long-term use and reducing maintenance costs.
[0012] The motor assembly according to the present invention includes the vibration damping member 1, the motor assembly is provided with an output shaft 4, and the vibration damping member 1 is connected to the output shaft 4. As shown in Figure 1, in some embodiments, the motor assembly may include a motor body 2 and a reduction box 3 connected to each other, and the vibration damping member 1 is connected to the output shaft 4 of the reduction box 3.
[0013] As described above, when using the vibration damping member 1 according to the present invention, the external load 100 does not need to be directly connected to the output shaft 4, but is connected via the vibration damping member 1. When the load 100 is subjected to vibration or impact such as dropping, its kinetic energy is first transmitted to the vibration damping member 1, and the cushioning part 12, due to its elastic design, deforms when subjected to impact and returns to its original shape when the impact is removed, thereby significantly reducing the vibration transmitted to the output shaft 4, and the vibration transmitted to the output shaft 4 of the drive assembly can be almost ignored. Specifically, the drive assembly may be a micromotor assembly or a small motor assembly, and the design of the vibration damping member 1 can improve the stability and durability of the motor assembly, reduce maintenance costs, and extend the service life of the motor.
[0014] In the description of this application, terms such as "first" and "second" are for the purpose of description only and should not be construed as indicating or suggesting relative importance or implicitly indicating the number of the specified technical features. Therefore, the features limited by "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, unless there are specific and clear limitations, "a plurality" means two or more. In the above embodiments, each embodiment description has its own focus. For parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The embodiments, implementation forms and related technical features of this application can be combined and replaced with each other when there is no contradiction.
[0015] The above are only preferred embodiments of this application and do not limit this application in any way. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this application without departing from the technical means of this application all belong to the scope of the technical means of this application. The present invention has been specifically described above with reference to the drawings and embodiments, but the above description does not limit the present invention in any way. Those skilled in the art can make deformations and changes to the present invention as needed without departing from the spirit and scope of the present invention, and these deformations and changes are all included within the scope of the present invention.
Description of Reference Signs
[0016] 1 Vibration damping member 11 First connection part 12 Buffer part 13 Second connection part DA Drive assembly 2 Motor body 3 Reduction box 4 Output shaft 100 Load
Claims
1. It includes a first connecting part, a buffer part, and a second connecting part that are connected in order, A vibration damping member characterized in that the first connection portion is connected to an external load, the second connection portion is connected to the output shaft of a drive assembly, and the cushioning portion is elastic.
2. The vibration damping member according to claim 1, wherein the buffer portion is provided around the output shaft and at a distance from the output shaft.
3. The vibration damping member according to claim 2, characterized in that the buffer portion has a multilayer circumferential structure, and two adjacent layers of the buffer portion are provided with an interval between them.
4. The vibration damping member according to claim 1, characterized in that the buffer portion has a curved structure and has a plurality of folded portions.
5. The vibration damping member according to claim 1, characterized in that the first connecting portion has a bending structure for clamping an external load.
6. The vibration damping member according to claim 1, characterized in that the second connecting portion clamps the output shaft or is wrapped around the output shaft.
7. The first connection portion is bonded to an external load and / or, The vibration damping member according to claim 1, characterized in that the second connecting portion is bonded to the output shaft.
8. The vibration damping member according to claim 1, characterized in that the first connecting portion, the buffer portion, and the second connecting portion are integrally molded.
9. The vibration damping member according to claim 1, characterized in that the vibration damping member is a metal spring plate.
10. Includes a vibration damping member according to any one of claims 1 to 9, A motor assembly characterized by having an output shaft and the vibration damping member connected to the output shaft.