Vibration damping components and motors containing them

Abstract

This invention provides a vibration damping component and a motor having the same. The vibration damping component includes an angle disc and a damping element. The angle disc has an angle scale around its circumference. The damping element is located on the angle disc and includes a damping ring body and a positioning ear formed on the outer peripheral wall of the damping ring body. According to this invention, when the vibration damping component is applied to a motor, if the motor load changes or the installation angle needs to be adjusted, simply rotate the angle disc so that the corresponding angle scale line on it aligns with the motor's cable outlet sleeve. Since the relative position between the angle disc and the damping element does not change, the rotation of the angle disc will result in the positioning ear of the damping element forming a preset installation angle with the cable outlet sleeve. This allows the vibration damping component to cope with any change in motor load or any adjustment of installation angle, solving the technical problem that damping rings with different installation angles cannot be used interchangeably. This reduces the types of components, lowers process costs, and improves the degree of versatility.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to a shock-absorbing component and a motor having the same. Background Technology

[0002] An electric motor is an electromagnetic device that converts electrical energy into mechanical energy based on the law of electromagnetic induction. It is widely used in industries such as home appliances, automobiles, and medical devices. With the trend towards energy conservation and market development, the DC-powered operation of household appliance fans is gradually becoming a trend. Currently, the industry mostly uses brushless DC encapsulated motors, and their research and production are receiving increasing attention both domestically and internationally.

[0003] The positioning and installation of existing brushless DC encapsulated motors under load mainly rely on damping rubber rings placed between the motor and the mounting base. The buffering performance and positioning of the damping rubber rings ensure smooth operation of the motor during operation and that its relative position to the load remains unchanged, thus ensuring reliable operation. Traditional damping rubber rings typically use a fixed angle design, which is only suitable for specific loads and installation conditions. When the motor load changes or the installation angle needs to be adjusted, different models of damping rubber rings must be replaced, resulting in a wide variety of components, increased molding costs, and low standardization. Utility Model Content

[0004] Therefore, this utility model provides a shock-absorbing component that can solve the technical problems of traditional shock-absorbing rubber rings, which are usually designed with a fixed angle and are only suitable for specific loads and installation conditions. When the motor load changes or the installation angle needs to be adjusted, different models of shock-absorbing rubber rings must be replaced, resulting in a wide variety of components, increased mold costs, and low degree of standardization.

[0005] To solve the above problems, this utility model provides a shock-absorbing component, including an angle disk and a shock absorber. The angle disk has an angle scale around its circumference, and the shock absorber is located on the angle disk. The shock absorber includes a shock-absorbing ring body and a positioning ear formed on the outer peripheral wall of the shock-absorbing ring body.

[0006] In some embodiments, the angle scale is located on the circumferential edge of one side of the angle disk, the shock absorber is located on the side of the angle disk where the angle scale is provided, and the outer diameter of the shock absorber body is smaller than the outer diameter of the angle disk.

[0007] In some embodiments, the outer diameter of the damping ring is D1, the outer diameter of the angle plate is D2, and D2 - D1 ≥ 20 mm.

[0008] In some embodiments, two positioning ears are formed on the outer peripheral wall of the shock absorber body, and the two positioning ears are arranged opposite each other at 180° on the shock absorber body.

[0009] In some embodiments, a protrusion is formed on the angle disk and a groove is formed on the shock absorber, the protrusion engaging within the groove.

[0010] In some embodiments, the groove is formed on both the shock-absorbing ring and the positioning ear.

[0011] In some embodiments, a plurality of anti-slip structures are formed on the outer peripheral wall of the shock absorber body, and the anti-slip structures are distributed at intervals along the circumference of the shock absorber body.

[0012] In some embodiments, the anti-slip structure is a raised ridge formed on the outer peripheral wall of the shock-absorbing ring.

[0013] In some embodiments, the thickness of the angle disk is H, where H ≤ 5 mm.

[0014] This utility model also provides a motor, including the aforementioned shock-absorbing component and a rear end cover, wherein the shock-absorbing component is assembled on the rear end cover.

[0015] The shock absorption component and the motor incorporating it provided by this utility model have the following beneficial effects:

[0016] When vibration damping components are applied to motors, if the motor load changes or the installation angle needs to be adjusted, simply rotate the angle dial so that the corresponding angle scale line on it aligns with the motor's cable outlet sleeve. Since the relative position between the angle dial and the vibration damper does not change, the rotation of the angle dial will result in the positioning ear of the vibration damper and the cable outlet sleeve forming a preset installation angle. This allows the vibration damping components to cope with any change in motor load or any adjustment in installation angle, solving the technical problem that vibration damping rings with different installation angles cannot be used interchangeably. This reduces the types of components, lowers process costs, and improves the degree of standardization. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the shock absorption component according to an embodiment of the present utility model;

[0019] Figure 2 This is a top view of the shock-absorbing component according to an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of the shock-absorbing component according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the angle plate of the shock absorption component according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the shock absorber component in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the motor structure according to an embodiment of the present utility model;

[0024] Figure 7 This is an exploded view of the motor according to an embodiment of the present invention.

[0025] The reference numerals in the attached figures are as follows:

[0026] 1. Angle plate; 2. Shock absorber; 21. Shock absorber ring; 22. Positioning ear; 3. Angle scale; 4. Protrusion; 5. Groove; 6. Rib; 7. Rear end cover; 8. Cable exit sleeve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0031] See also Figures 1 to 7 As shown, according to an embodiment of the present invention, a shock-absorbing component is provided, including an angle disk 1 and a shock absorber 2. Angle disk 1 is provided with an angle scale 3 around its circumference. The shock absorber 2 is located on angle disk 1 and includes a shock-absorbing ring body 21 and a positioning ear body 22 formed on the outer peripheral wall of the shock-absorbing ring body 21.

[0032] In this technical solution, when the vibration damping component is applied to a motor, if the motor load changes or the installation angle needs to be adjusted, simply rotate the angle dial 1 so that the corresponding angle scale line on it aligns with the motor's outlet sleeve 8. Since the relative position between the angle dial 1 and the vibration damper 2 does not change, the rotation of the angle dial 1 will result in the positioning ear 22 of the vibration damper 2 forming a preset installation angle with the outlet sleeve 8. This allows the vibration damping component to cope with any change in motor load or any installation angle adjustment, solving the technical problem that vibration damping rings with different installation angles cannot be used interchangeably. This reduces the types of components, lowers process costs, and improves the degree of universality. The angle scale on the angle dial 1 is a 360° angle scale, enabling stepless and precise angle adjustment from 0 to 360°. The angle markings can be made every 1°-5°, depending on the actual application. Aligning the corresponding angle scale line on the angle dial 1 with the motor's outlet sleeve 8 means aligning it with the center position of the outlet sleeve 8. The center position of the outlet sleeve 8 will be marked during the motor manufacturing process.

[0033] It should be noted that the load mounting base corresponding to the motor has a slot, and the positioning ear 22 of the shock absorber 2 fits into the slot, thereby achieving motor positioning. After the motor is positioned, the motor power cable (leading out from the cable outlet sleeve 8) needs to be connected to the load main board. The design of the load housing determines the direction from which the power cable comes out and connects to the load main board after the motor is installed and positioned. Therefore, the cable outlet angle of the cable outlet sleeve 8 will change according to the change of the motor load housing. This change in angle is reflected on the motor as a change in the relative angle between the positioning ear 22 of the shock absorber 2 and the cable outlet sleeve 8.

[0034] See also Figure 1 , Figure 2 and Figure 4 As shown, the angle scale 3 is located on the circumferential edge of one side of the angle disk 1, the shock absorber 2 is located on the side of the angle disk 1 where the angle scale 3 is provided, and the outer diameter of the shock absorber body 21 is smaller than the outer diameter of the angle disk 1.

[0035] In this embodiment, when the outer diameter of the shock absorber body 21 is smaller than the outer diameter of the angle plate 1, the angle scale 3 on the angle plate 1 can be exposed, thereby facilitating the inspection of whether the angle adjustment of the angle plate 1 is correct.

[0036] In one specific implementation, the outer diameter of the damping ring 21 is D1, the outer diameter of the angle plate 1 is D2, and D2 - D1 ≥ 20mm.

[0037] In this technical solution, when the outer diameter of the angle plate 1 is more than 20mm larger than the outer diameter of the damping ring 21, it can be ensured that the angle scale 3 on the angle plate 1 is fully exposed, and the damping ring 21 will not obstruct the angle scale 3.

[0038] See also Figure 1 , Figure 2 and Figure 6 As shown, two positioning ears 22 are formed on the outer peripheral wall of the shock absorber body 21, and the two positioning ears 22 are arranged opposite each other at 180° on the shock absorber body 21.

[0039] In this embodiment, the two positioning ears 22 are positioned 180° opposite each other on the shock-absorbing ring 21 to ensure accurate positioning and tight fit between the motor and the load base. Preferably, after the shock absorber 2 is on the angle plate 1, the two positioning ears 22 correspond to 0° and 180° of the angle plate 1, respectively.

[0040] See also Figures 3 to 5 As shown, a protrusion 4 is formed on the angle plate 1, and a groove 5 is formed on the shock absorber 2. The protrusion 4 is engaged in the groove 5.

[0041] In this technical solution, the engagement of the protrusion 4 on the angle plate 1 and the groove 5 on the shock absorber 2 makes it convenient to assemble the shock absorber 2 onto the angle plate 1, and also achieves radial and tangential limiting of the shock absorber 2, ensuring that the relative position between the shock absorber 2 and the angle plate 1 does not change. This is a solution where the angle plate 1 and the shock absorber 2 are separately molded and then assembled together. When adjusting the angle, the corresponding scale line on the angle plate 1 can be aligned with the cable outlet sleeve 8 first, and then the shock absorber 2 can be assembled onto the angle plate 1. As another solution, the angle plate 1 and the shock absorber 2 can also be integrally molded. When adjusting the angle, the integrally molded angle plate 1 and the shock absorber 2 need to be rotated together. Since the angle plate 1 and the shock absorber 2 are fitted around the bearing chamber of the rear end cover 7 of the motor, if the angle plate 1 and the shock absorber 2 are integrally molded, it will be more laborious and troublesome to assemble them onto the rear end cover 7 and to rotate them relative to the rear end cover 7, but it is still a feasible method. Preferably, both the protrusion 4 and the groove 5 are hemispherical, and their diameters are the same. The inner diameters of the angle disc 1 and the damper 2 are the same as the outer diameter of the bearing chamber of the rear end cover 7. It can be understood that the damper 2 itself plays a role in buffering and shock absorption. After constructing the groove 5 on the damper 2, the groove 5 can absorb vibration energy through deformation, which can enhance the buffering and shock absorption effect of the damper 2.

[0042] It should be noted that both the angle plate 1 and the shock absorber 2 can be made of high-damping rubber material, specifically silicone rubber, as silicone rubber has excellent cushioning and shock absorption properties. When the angle plate 1 and the shock absorber 2 are molded separately and then assembled together, the positioning ear 22 must not extend beyond the angle plate 1. This arrangement increases the contact area between the positioning ear 22 and the angle plate 1, increases the anti-torsional force, and prevents the positioning ear 22 from being suspended in the air. If the positioning ear 22 is suspended in the air, there is a risk that it may be accidentally pried up during production or transportation.

[0043] See Figure 5 As shown, the groove 5 is formed on both the shock-absorbing ring body 21 and the positioning ear body 22.

[0044] In this embodiment, if the groove 5 is formed solely on the damping ring 21 or the positioning ear 22, it will significantly affect the structural strength of either the damping ring 21 or the positioning ear 22. However, when the groove 5 is formed on both the damping ring 21 and the positioning ear 22, the impact on their structural strength is relatively small. Preferably, the diameter of the groove 5 does not exceed the minimum width of the positioning ear 22. When there are two positioning ears 22, there are also two grooves 5.

[0045] As a specific implementation method, multiple anti-slip structures are formed on the outer peripheral wall of the damping ring 21, and the anti-slip structures are distributed at intervals along the circumference of the damping ring 21.

[0046] In this technical solution, each anti-slip structure can increase the friction between the shock absorber 2 and the motor load base, preventing the shock absorber 2 from shifting under the vibration of the motor during operation.

[0047] See also Figure 1 , Figure 5 and Figure 6 As shown, the anti-slip structure is a protruding ridge 6 formed on the outer peripheral wall of the shock-absorbing ring body 21.

[0048] In this embodiment, when the anti-slip structure is a protruding ridge 6 formed on the outer peripheral wall of the shock absorber 21, it can not only play an anti-slip role, but also enhance the structural strength of the shock absorber 2.

[0049] In one specific implementation, the thickness of the angle disk 1 is H, where H ≤ 5 mm.

[0050] In this technical solution, the damping component 2 mainly serves as a buffer and damping element. The total height of the angle plate 1 and the damping component 2 combined is a fixed value. If the angle plate 1 is too thick, the height of the damping component 2 will be reduced, which will affect the overall damping performance of the damping assembly. When the thickness of the angle plate 1 is less than 5mm, the damping component 2 can be guaranteed to have a larger height, thus ensuring the overall damping performance of the damping assembly.

[0051] This utility model also provides an electric motor, including the aforementioned shock-absorbing components.

[0052] The production process of the vibration damping components and their assembly on the motor are as follows:

[0053] Step 1: Rubber vulcanization molding. Angle plate 1 and shock absorber 2 adopt compression molding vulcanization process, with temperature controlled at 150±5℃ and pressure holding time of 20 minutes to ensure no air bubbles.

[0054] Step 2: Install angle plate 1, locate the angle according to the drawing, point the corresponding angle scale line to the motor cable outlet sleeve 8, and press down angle plate 1 to fit tightly against the rear end cover 7 of the motor.

[0055] Step 3: Install the shock absorber 2, align the groove 5 of the shock absorber 2 with the protrusion 4 of the angle plate 1 and press it tightly to achieve reliable positioning.

[0056] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above are only preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A shock absorbing assembly characterized by, It includes an angle plate (1) and a shock absorber (2). The angle plate (1) has an angle scale (3) around its circumference. The shock absorber (2) is located on the angle plate (1). The shock absorber (2) includes a shock absorber body (21) and a positioning ear (22) formed on the outer peripheral wall of the shock absorber body (21).

2. The shock absorbing assembly of claim 1, wherein, The angle scale (3) is located on the circumferential edge of one side of the angle disk (1), the shock absorber (2) is located on the side of the angle disk (1) where the angle scale (3) is located, and the outer diameter of the shock absorber body (21) is smaller than the outer diameter of the angle disk (1).

3. The shock absorbing assembly of claim 2, wherein, The outer diameter of the shock absorber (21) is D1, and the outer diameter of the angle plate (1) is D2, where D2 - D1 ≥ 20 mm.

4. The shock absorbing assembly of claim 1, wherein, Two positioning ears (22) are formed on the outer peripheral wall of the shock-absorbing ring (21), and the two positioning ears (22) are arranged opposite each other at 180° on the shock-absorbing ring (21).

5. The shock absorbing assembly of claim 1, wherein, The angle plate (1) has a protrusion (4) and the shock absorber (2) has a groove (5), and the protrusion (4) is engaged in the groove (5).

6. The shock absorption component according to claim 5, characterized in that, The groove (5) is formed on both the shock-absorbing ring body (21) and the positioning ear body (22).

7. The shock absorbing assembly of claim 1, wherein, Multiple anti-slip structures are formed on the outer peripheral wall of the shock-absorbing ring (21), and each anti-slip structure is distributed at intervals along the circumference of the shock-absorbing ring (21).

8. The shock absorbing assembly of claim 7, wherein, The anti-slip structure is a protruding ridge (6) formed on the outer peripheral wall of the shock-absorbing ring (21).

9. The shock absorbing assembly of any one of claims 1 to 8, wherein, The thickness of the angle disk (1) is H, where H ≤ 5 mm.

10. An electric machine characterized by Includes the shock-absorbing assembly and rear end cover (7) as described in any one of claims 1 to 9, wherein the shock-absorbing assembly is assembled on the rear end cover (7).

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