Square motor shock absorption, noise reduction and waterproof structure
The square motor is fully encased by an alternating upper and lower sleeve structure, and shock-absorbing grooves and annular grooves are set on the sleeve body. Using elastic materials, the vibration and noise problems of the square motor are solved, and the waterproofness and noise level are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUZHOU SHB AUTOMOTIVE APPLIANCE CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-26
AI Technical Summary
The vibration and noise problems of existing square motors cannot be effectively solved, and the vibration damping springs cannot eliminate the noise of miniature brushed motors.
The square motor is fully enclosed by an interlocking upper and lower sleeve structure, and shock-absorbing grooves and annular grooves are set on the sleeve body. It is made of elastic material to enhance waterproofness and reduce noise.
It achieves better waterproof performance and reduced noise levels, enhancing the competitiveness of square motors.
Smart Images

Figure CN224418581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor technology, and in particular to a square motor shock absorption, noise reduction and waterproof structure. Background Technology
[0002] With increasing market demand and intensifying industry competition, the requirements for motor noise reduction are becoming increasingly stringent. The noise of miniature brushed motors primarily originates from the friction between the carbon brushes and the commutator. Currently used damping springs as vibration damping components cannot completely eliminate the noise of miniature brushed motors. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a vibration reduction, noise reduction and waterproof structure for square motors, which addresses the vibration and noise issues of existing square motors.
[0004] The technical problem to be solved by this utility model can be achieved through the following technical solution:
[0005] A vibration-damping, noise-reducing, and waterproof structure for a square motor includes an upper sleeve and a lower sleeve. The lower sleeve is fitted onto the end of the square motor for inserting a terminal block, and the upper sleeve is fitted onto the end of the square motor having an output shaft. The upper and lower sleeves are interlocked to completely enclose the square motor. A shaft through hole is provided on the top of the upper sleeve, allowing the output shaft of the square motor to pass through the entire square motor and through the shaft through hole during installation. Several vibration-damping grooves are provided on the outer circumferential surfaces of the upper and lower sleeves.
[0006] In a preferred embodiment of this utility model, each shock-absorbing groove on the upper sleeve and each vibration-damping groove on the lower sleeve are vertically connected.
[0007] In a preferred embodiment of this utility model, both the upper and lower sleeves have three shock-absorbing grooves, which are at 90° to each other.
[0008] In a preferred embodiment of this utility model, a plurality of annular grooves are provided on the inner wall of the upper sleeve, and a plurality of annular protrusions are provided on the outer wall of the lower sleeve. Each annular protrusion is embedded in the corresponding annular groove to form the interlaced structure to increase waterproofness.
[0009] In a preferred embodiment of this utility model, the annular groove and the annular protrusion are both adapted semi-circular shapes.
[0010] In a preferred embodiment of this utility model, the upper sleeve and the lower sleeve are made of elastic material.
[0011] In a preferred embodiment of this utility model, a power socket is provided at the bottom of the lower sleeve.
[0012] By employing the above technical solution, this utility model adopts a structure that fully encloses the square motor with upper and lower sleeves. With the added benefits of elasticity and friction, its waterproof capability is significantly enhanced. It also reduces noise. Furthermore, since the upper and lower sleeves are made of elastic materials, they further reduce noise, lowering the noise level of the square motor and making it more competitive. Attached Figure Description
[0013] Figure 1 This is an assembly diagram of the fully waterproof structure of the square motor of this utility model.
[0014] Figure 2 This is an exploded view of the fully waterproof structure of the square motor of this utility model.
[0015] Figure 3 This is a top view of the lower sleeve of this utility model.
[0016] Figure 4 This is a top view of the upper sleeve of this utility model. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] See Figures 1 to 4 The figure shows a square motor vibration damping, noise reduction, and waterproof structure, comprising an upper sleeve 100 and a lower sleeve 300. The lower sleeve 300 is fitted onto the end of the square motor 200 for inserting a terminal block, and a power socket 310 is provided at the bottom of the lower sleeve 300. The upper sleeve 100 is fitted onto the end of the square motor 200 having an output shaft 210. A shaft through hole 110 is provided at the top of the upper sleeve 100, and during installation, the output shaft 210 of the square motor 200 passes through the entire square motor 200 and through the shaft through hole 110.
[0019] The upper sleeve 100 and lower sleeve 300 are interlocked in an interlocking structure to fully enclose the square motor 200. The elasticity and friction enhance its waterproof capabilities. This also reduces noise. Furthermore, the upper sleeve 100 and lower sleeve 300 are made of elastic material, further reducing noise and lowering the noise level of the square motor, making it more competitive.
[0020] Several annular grooves 120 are provided on the inner wall of the upper sleeve 100, and several annular protrusions 320 are provided on the outer wall of the lower sleeve 300. Each annular protrusion 320 is embedded in a corresponding annular groove 120, forming the aforementioned interlaced structure to increase waterproofness. Both the annular grooves 120 and the annular protrusions 320 are matching semi-circular shapes.
[0021] Another feature of this invention is that several shock-absorbing grooves 130 and 330 are provided on the outer peripheral surfaces of the upper sleeve 100 and the lower sleeve 300 to provide shock absorption. Each shock-absorbing groove 130 on the upper sleeve 100 is vertically connected to each shock-absorbing groove 330 on the lower sleeve 300. There are three shock-absorbing grooves 130 and 330 on both the upper sleeve 100 and the lower sleeve 300, and the three shock-absorbing grooves 130 and 330 are at 90° to each other.
Claims
1. A square motor vibration damping, noise reduction, and waterproof structure, characterized in that, include: The upper and lower sleeves are provided, wherein the lower sleeve is fitted onto the end of the square motor for inserting the terminal block, and the upper sleeve is fitted onto the end of the square motor having the output shaft; the upper and lower sleeves are interlocked to completely enclose the square motor; a shaft through hole is provided on the top of the upper sleeve, and during installation, the output shaft of the square motor passes through the entire square motor and through the shaft through hole; several shock-absorbing grooves are provided on the outer circumferential surfaces of the upper and lower sleeves.
2. The square motor vibration damping, noise reduction, and waterproof structure according to claim 1, characterized in that, Each shock-absorbing groove on the upper sleeve is connected vertically to each shock-absorbing groove on the lower sleeve.
3. The square motor vibration damping, noise reduction, and waterproof structure according to claim 1, characterized in that, Both the upper and lower sleeves have three shock-absorbing grooves, which are at 90° to each other.
4. The square motor vibration damping, noise reduction, and waterproof structure according to claim 1, characterized in that, Several annular grooves are provided on the inner wall of the upper sleeve, and several annular protrusions are provided on the outer wall of the lower sleeve. Each annular protrusion is embedded in the corresponding annular groove, forming the interlocking structure.
5. The square motor vibration damping, noise reduction, and waterproof structure according to claim 4, characterized in that, Both the annular groove and the annular protrusion are matching semi-circular shapes.
6. The square motor vibration damping, noise reduction, and waterproof structure according to claim 1, characterized in that, The upper and lower sleeves are made of elastic material.
7. The square motor vibration damping, noise reduction, and waterproof structure according to claim 1, characterized in that, A power socket is provided at the bottom of the lower sleeve.