Motor assembly and motor having the same

Abstract

The present invention provides a motor assembly and a motor having the same. The motor assembly includes a motor stator, wherein at least one end of the motor stator is provided with a first limiting portion; an anti-vibration portion, wherein the anti-vibration portion is provided inside the motor stator, and the anti-vibration portion has a second limiting portion that cooperates with the first limiting portion to prevent the anti-vibration portion from shifting relative to the motor stator. The first limiting portion is provided on the motor stator, and the second limiting portion that cooperates with the first limiting portion is provided on the anti-vibration portion, so that when the anti-vibration portion is assembled on the motor stator, the anti-vibration portion and the motor stator will not shift under the action of the first limiting portion and the second limiting portion, thereby improving the reliability of the assembly of the anti-vibration portion and the motor stator. The assembly method of the anti-vibration portion and the motor stator of the present application can avoid the problem of the anti-vibration portion shifting relative to the motor stator after the anti-vibration portion and the motor stator are assembled and used for a period of time in the prior art, thereby causing a safety hazard to the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of motor equipment, and in particular to a motor assembly and a motor having the same. Background Art

[0002] In the prior art, the commonly used method for fixing the anti-vibration rubber ring of the plastic-encapsulated duct motor in the industry is mainly achieved by interference fit between the raised portion of the end cover bearing and the inner circle of the vibration-damping rubber ring, and glue is applied to the raised portion of the bearing to ensure that the anti-vibration rubber ring does not rotate or fall off. However, after the motor has been used for a long time, the glue will fail, causing the rubber ring to rotate and shift, or even fall off, causing a safety hazard to the motor. In addition, applying glue during motor assembly not only consumes manpower and material resources, but also takes some time to wait for the glue to take effect, which reduces the production efficiency of the motor. Summary of the Invention

[0003] The main purpose of the present invention is to provide a motor assembly and a motor having the same, so as to solve the problem in the prior art that the vibration-damping rubber ring is easily displaced in the motor stator.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a motor assembly is provided, including: a motor stator, at least one end of which is provided with a first limiting portion; an anti-vibration portion, the anti-vibration portion is arranged in the motor stator, and the anti-vibration portion has a second limiting portion that cooperates with the first limiting portion to prevent the anti-vibration portion from shifting relative to the motor stator.

[0005] Furthermore, the motor assembly also includes an end cover bearing, which includes: a limiting part, the first end of the limiting part is located inside the motor stator and connected to the motor stator, the second end of the limiting part extends outside the motor stator, and the second end of the limiting part is formed with a limiting hole for the rotating shaft to pass through, and the anti-vibration part is arranged on the limiting part.

[0006] Furthermore, the end cover bearing also includes: a connecting part, the connecting part is located inside the motor stator and connected to the motor stator, the first end of the limiting part is connected to the connecting part, and a vibration-proof cavity is formed between the side of the connecting part close to the limiting part and the inner wall of the motor stator, and the vibration-proof part is located in the vibration-proof cavity.

[0007] Furthermore, the first end of the motor stator has a shaft mounting hole, the inner circumference of the shaft mounting hole is provided with a mounting groove, the connecting portion is arranged in the mounting groove, and the motor stator is provided with a first limiting portion located outside the connecting portion.

[0008] Furthermore, the first limiting portion is an arc-shaped notch formed on the inner circumference of the shaft mounting hole.

[0009] Furthermore, the anti-vibration part is an annular anti-vibration rubber ring, which is sleeved on the outer circumference of the limiting part. A limiting column is provided on the end face of the anti-vibration part away from the connecting part, and at least part of the outer circumference of the limiting column cooperates with the arc-shaped notch.

[0010] Furthermore, there are multiple limiting posts and multiple arc-shaped notches, and the multiple limiting posts and the multiple arc-shaped notches are arranged in a one-to-one correspondence.

[0011] Furthermore, the end cover bearing and the motor stator are integrally injection molded.

[0012] Furthermore, an annular groove is provided on the outer peripheral surface of the vibration-proof portion.

[0013] According to another aspect of the present invention, a motor is provided, comprising a motor assembly, wherein the motor assembly is the above-mentioned motor assembly.

[0014] By applying the technical solution of the present invention, a first limiting portion is provided on the motor stator, and a second limiting portion that cooperates with the first limiting portion is provided on the anti-vibration portion. This ensures that when the anti-vibration portion is assembled on the motor stator, the anti-vibration portion and the motor stator will not shift under the action of the first limiting portion and the second limiting portion, thereby improving the reliability of the assembly of the anti-vibration portion and the motor stator. The assembly method of the anti-vibration portion and the motor stator of the present application can avoid the problem of displacement of the anti-vibration portion relative to the motor stator after a period of use in the prior art, which poses a safety hazard to the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 A schematic structural diagram of an embodiment of a vibration-proof portion according to the present invention is shown;

[0017] Figure 2 Shown Figure 1 A schematic structural diagram of an embodiment of the middle anti-vibration portion from another perspective;

[0018] Figure 3 Shown Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0019] Figure 4 Shown Figure 2 Schematic diagram of the structure in the C direction;

[0020] Figure 5 shows a schematic structural diagram of an embodiment of a motor according to the present invention;

[0021] Figure 6Shown Figure 5 Schematic diagram of the cross-sectional structure along the BB direction;

[0022] Figure 7 Shown Figure 5 Schematic diagram of the cross-sectional structure in the middle DD direction;

[0023] Figure 8 Shown Figure 5 A structural schematic diagram of an embodiment of the motor from another perspective.

[0024] The above drawings include the following reference numerals:

[0025] 10. Motor stator; 11. Shaft mounting hole; 12. Mounting slot; 13. Arc-shaped notch;

[0026] 20. Anti-vibration portion; 21. Limiting column; 22. Annular groove;

[0027] 30. End cover bearing; 31. Connecting part; 32. Limiting part; 321. Limiting hole. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] It should be noted that the terms "first", "second", etc. in the specification, claims, and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0033] Combine Figures 1 to 8 As shown, according to an embodiment of the present invention, a motor assembly is provided.

[0034] Specifically, the motor assembly includes a motor stator 10 and a vibration-proofing member 20. A first stopper is provided at at least one end of the motor stator 10. The vibration-proofing member 20 is disposed within the motor stator 10 and includes a second stopper that cooperates with the first stopper to prevent displacement of the vibration-proofing member 20 relative to the motor stator 10.

[0035] In this embodiment, a first limiting portion is provided on the motor stator 10, and a second limiting portion cooperating with the first limiting portion is provided on the anti-vibration portion 20. This ensures that when the anti-vibration portion 20 is assembled on the motor stator 10, the anti-vibration portion 20 and the motor stator 10 will not shift under the action of the first limiting portion and the second limiting portion, thereby improving the reliability of the assembly of the anti-vibration portion 20 and the motor stator 10. The assembly method of the anti-vibration portion and the motor stator 10 of the present application can avoid the problem of displacement of the anti-vibration portion relative to the motor stator 10 after a period of assembly and use in the prior art, which may pose a safety hazard to the motor.

[0036] Among them, Figures 5 to 8As shown, the motor assembly also includes an end cap bearing 30. The end cap bearing 30 includes a stopper 32. The first end of the stopper 32 is located within and connected to the motor stator 10. The second end of the stopper 32 extends outside the motor stator 10. A stopper hole 321 is formed at the second end of the stopper 32 for the shaft to pass through. The vibration-proof portion 20 is disposed on the stopper 32. This arrangement effectively reduces vibration generated during motor operation.

[0037] Specifically, the end cover bearing 30 further includes a connecting portion 31. The connecting portion 31 is located inside the motor stator 10 and is connected to the motor stator 10. The first end of the limiting portion 32 is connected to the connecting portion 31. A vibration-proof cavity is formed between the side of the connecting portion 31 close to the limiting portion 32 and the inner wall of the motor stator 10. Figure 7 As shown in FIG. F, the vibration-proof part 20 is located in the vibration-proof cavity. This arrangement can improve the sealing between the end cover bearing 30 and the motor stator 10, and at the same time play a role in reducing the vibration generated when the motor is working.

[0038] like Figure 7 As shown, in order to improve the reliability of the connection between the end cover bearing 30 and the motor stator 10, a mounting groove 12 is opened on the inner circumference of the shaft mounting hole 11 at the first end of the motor stator 10, and the connecting portion 31 is arranged in the mounting groove 12. The motor stator 10 is provided with a first limiting portion on the outside of the connecting portion 31.

[0039] Preferably, the first limiting portion is an arcuate notch 13 formed on the inner circumference of the shaft mounting hole 11. The anti-vibration portion 20 is an annular anti-vibration rubber ring, which is sleeved onto the outer circumference of the limiting portion 32. A limiting post 21 is provided on the end face of the anti-vibration portion 20 facing away from the connecting portion 31, with at least a portion of the outer circumference of the limiting post 21 mating with the arcuate notch 13. This arrangement effectively prevents displacement of the anti-vibration portion 20 relative to the motor stator 10, thereby improving the reliability of the motor assembly.

[0040] Preferably, if Figures 1 to 4 and Figure 8 As shown, there are multiple limiting posts 21 and multiple arc-shaped notches 13, and the multiple limiting posts 21 are arranged in a one-to-one correspondence with the multiple arc-shaped notches 13. This arrangement can further improve the reliability of the assembly between the vibration-proof part 20 and the motor stator 10, effectively increasing the service life of the motor.

[0041] To further improve the sealing between the motor stator 10 and the end cover bearing 30, the end cover bearing 30 is integrally injection molded with the motor stator 10. To improve the vibration-proofing effect of the vibration-proof part 20, an annular groove 22 is provided on the outer circumference of the vibration-proof part 20.

[0042] The motor assembly in the above embodiment can also be used in the field of motor equipment technology. That is, according to another aspect of the present invention, a motor is provided. The motor includes a motor assembly, which is the motor assembly in the above embodiment. Specifically, the motor assembly includes a motor stator 10 and an anti-vibration portion 20. A first limiting portion is provided at at least one end of the motor stator 10. The anti-vibration portion 20 is provided in the motor stator 10, and the anti-vibration portion 20 has a second limiting portion that cooperates with the first limiting portion to prevent the anti-vibration portion 20 from shifting relative to the motor stator 10.

[0043] A first limiting portion is provided on the motor stator 10, and a second limiting portion cooperating with the first limiting portion is provided on the anti-vibration portion 20. This ensures that when the anti-vibration portion 20 is assembled on the motor stator 10, the anti-vibration portion 20 and the motor stator 10 will not shift due to the action of the first limiting portion and the second limiting portion, thereby improving the reliability of the assembly of the anti-vibration portion 20 and the motor stator 10. The assembly method of the anti-vibration portion and the motor stator 10 of the present application can avoid the problem of displacement of the anti-vibration portion relative to the motor stator 10 after a period of assembly and use in the prior art, which poses a safety hazard to the motor.

[0044] Specifically, the motor structure of the present application completely eliminates the quality risk of rubber ring displacement caused by glue failure after long-term use. At the same time, the use of glue in the motor assembly process is eliminated, reducing the cost of the motor and improving the degree of automation in motor production.

[0045] The structure of the motor of the present application also reduces the operational difficulty of assembling the anti-vibration rubber ring, simplifies the final assembly process, improves production efficiency, and enhances the market competitiveness of the product. The use of this plastic-sealed motor anti-vibration rubber ring fixing method eliminates the process of applying glue, reduces the difficulty of motor final assembly, and improves the degree of automation of motor production. At the same time, it saves time waiting for the anti-vibration rubber ring glue to take effect, thereby improving the efficiency of motor production. Even after years of use, the motor of the present application will not have the quality risk of glue failure causing the rubber ring to rotate, shift, or even fall off, thereby improving the quality of the motor and effectively enhancing the market competitiveness of the product.

[0046] The injection mold for the plastic-encapsulated motor stator has been reconfigured. After injection molding, the stator features four semicircular holes, or arc-shaped notches, evenly distributed around the bearing chamber of the end cap bearing. These holes, in combination with the four stoppers on the end cap bearing's anti-vibration rubber ring, secure the ring and prevent it from shifting or falling out. This motor structure eliminates the need for glue, simplifies the motor assembly process, and improves the level of automation in motor production. Furthermore, a portion of the matching end cap bearing is injection-molded into the plastic-encapsulated motor stator, isolating the motor's interior from the outside. This ensures complete isolation and effectively improves the seal between the motor's interior and exterior.

[0047] The anti-vibration rubber ring is fixed in the following way: first, the motor stator is injection molded, and the end cover bearing is injection molded inside the stator. The bearing chamber of the raised part of the end cover bearing does not need to be covered with plastic molding compound. Compared with the solution of covering the end cover bearing chamber with plastic molding compound, this step saves some plastic molding compound, which reduces the cost of the motor accordingly. After the plastic-encapsulated stator is injection molded, the stator injection mold is designed with four small semicircular holes around the end cover bearing. The injection molding process is simple and has a high degree of automation. In addition, except for the raised part of the bearing chamber, most of the edges of the end cover bearing are injection molded into the stator to isolate the inside and outside of the motor, so that the motor does not have quality risks caused by poor sealing of the motor. Finally, after completing the basic assembly process, the installation process can be completed by simply aligning the small cylinder on the inside of the anti-vibration rubber ring with the plastic-encapsulated motor stator and tightening it.

[0048] When installing the anti-vibration rubber ring, since the four small semicircular holes on the stator are fixed to the anti-vibration rubber ring, there is no need to apply glue, which makes it very simple for the operator to operate, reducing the difficulty of the operator's operation during assembly and simplifying the assembly process. At the same time, when using the traditional solution, applying glue requires waiting for the glue to take effect, which greatly reduces production efficiency during mass production. In addition, there are certain quality risks when using glue to fix the rubber ring. The glue will become ineffective as the motor is used for a long time, and it is easy to cause rotational displacement or even fall off. The fixing method of the anti-vibration rubber ring in this embodiment completely eliminates the quality risks of the above-mentioned motor.

[0049] In addition to the above, it should be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like in this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as included in at least one embodiment generally described in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also falls within the scope of the present invention.

[0050] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0051] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A motor assembly, characterized in that: include: A motor stator (10), wherein at least one end of the motor stator (10) is provided with a first limiting portion, the first end of the motor stator (10) has a rotating shaft mounting hole (11), and the first limiting portion is an arc-shaped notch (13) formed on the inner circumference of the rotating shaft mounting hole (11); an anti-vibration portion (20), the anti-vibration portion (20) being arranged in the motor stator (10), the anti-vibration portion (20) having a second limiting portion cooperating with the first limiting portion to prevent the anti-vibration portion (20) from shifting relative to the motor stator (10); The motor assembly further includes an end cover bearing (30), and the end cover bearing (30) further includes: a connecting portion (31) and a limiting portion (32), wherein the connecting portion (31) is located in the motor stator (10) and is connected to the motor stator (10), a first end of the limiting portion (32) is connected to the connecting portion (31), and an anti-vibration cavity is formed between a side of the connecting portion (31) close to the limiting portion (32) and an inner wall of the motor stator (10), and the anti-vibration portion (20) is located in the anti-vibration cavity.

2. The motor assembly according to claim 1, wherein: The end cover bearing (30) comprises: A limiting portion (32), wherein a first end of the limiting portion (32) is located inside the motor stator (10) and connected to the motor stator (10), a second end of the limiting portion (32) extends outside the motor stator (10), a limiting hole (321) for the rotating shaft to pass through is formed at the second end of the limiting portion (32), and the anti-vibration portion (20) is arranged on the limiting portion (32).

3. The motor assembly according to claim 1, wherein: The inner circumference of the rotating shaft mounting hole (11) is provided with a mounting groove (12), the connecting portion (31) is arranged in the mounting groove (12), and the motor stator (10) is provided with the first limiting portion on the outside of the connecting portion (31).

4. The motor assembly according to claim 1, wherein: The anti-vibration part (20) is an annular anti-vibration rubber ring, and the anti-vibration part (20) is sleeved on the outer peripheral surface of the limiting part (32). A limiting column (21) is provided on the end surface of the anti-vibration part (20) away from the connecting part (31), and at least part of the outer peripheral surface of the limiting column (21) is matched with the arc-shaped notch (13).

5. The motor assembly according to claim 4, characterized in that There are a plurality of the limiting posts (21), and a plurality of the arc-shaped notches (13). The plurality of limiting posts (21) and the plurality of arc-shaped notches (13) are arranged in a one-to-one correspondence.

6. The motor assembly according to claim 2, characterized in that The end cover bearing (30) and the motor stator (10) are integrally injection molded.

7. The motor assembly according to claim 1, wherein: An annular groove (22) is provided on the outer peripheral surface of the vibration-proof portion (20).

8. A motor, comprising a motor assembly, characterized in that: The motor assembly is the motor assembly according to any one of claims 1 to 7.

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