Motor end cover assembly positioning structure

Abstract

This utility model relates to the field of motor technology, specifically a motor end cover assembly and positioning structure, including a base, a tail end cover, and a housing. The base has a tail connecting portion, which in turn has a first rotary connecting element. An end sealing groove is provided on the side of the base near the tail connecting portion, and an end sealing ring is provided in the end sealing groove, which seals against the end of the first rotary connecting element. The tail end cover has an inner tail ring and an outer tail ring. The inner tail ring connects to the outer diameter of the first rotary connecting element, and the outer tail ring has an assembly groove. Multiple guide blocks are provided around the outer periphery of the assembly groove, and each guide block has a guide slope for guiding the housing towards the assembly groove. This utility model allows the housing to be quickly and accurately installed towards the assembly groove, greatly improving assembly efficiency and ensuring that there is no relative shaking or displacement during motor operation, thus guaranteeing the stability of the overall motor structure.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor end cover assembly and positioning structure. Background Technology

[0002] External rotor motors, widely used in numerous fields such as industry and home appliances, play a vital role in modern production and daily life. However, current external rotor motors still face some pressing problems in practical applications. The assembly process of the end caps in existing external rotor motors is often inconvenient. Traditional assembly methods involve multiple complex steps, requiring workers to precisely align various components; even slight deviations can affect the overall performance of the motor, leading to low assembly efficiency and increased production cycle and cost. Therefore, a new design is needed for the existing motor assembly structure. Utility Model Content

[0003] To solve the above problems, this utility model provides a motor end cover assembly and positioning structure that allows the outer shell to be quickly and accurately installed towards the assembly groove, greatly improving assembly efficiency and ensuring that there is no relative shaking or displacement during motor operation, thus guaranteeing the stability of the overall motor structure.

[0004] The technical solution adopted by this utility model is: a motor end cover assembly and positioning structure, including a base, a tail end cover, and a shell. The base is provided with a tail connecting part, and the tail connecting part is provided with a first rotary connecting element. An end sealing groove is provided on the side of the base near the tail connecting part, and an end sealing ring is provided in the end sealing groove. The end sealing ring seals against the end of the first rotary connecting element. The tail end cover is provided with an inner tail ring and an outer tail ring. The inner tail ring is connected to the outer diameter of the first rotary connecting element. The outer tail ring is provided with an assembly groove. Multiple guide blocks are provided on the outer periphery of the assembly groove. The guide blocks are provided with guide slopes, and the guide slopes are used to guide the shell toward the assembly groove.

[0005] A further improvement to the above solution is that the tail connection portion is provided with a first sealing groove on the lower side of the end sealing groove, and a first sealing ring is provided in the first sealing groove. The first sealing ring is used to abut against the inner diameter of the first rotary connecting element.

[0006] A further improvement to the above solution is that a limiting plane is provided on one side of the end sealing ring, and the limiting plane is used to limit one side of the end sealing ring.

[0007] A further improvement to the above scheme is that the inner ring at the tail is provided with a tail fixing step, which is used to fix the first rotating connecting element.

[0008] A further improvement to the above solution is that the wall surface of the tail fixing step is provided with a second sealing groove, and a second sealing ring is provided in the second sealing groove. The second sealing ring is used to abut against the outer diameter of the first rotating connecting element.

[0009] A further improvement to the above solution is that the inner wall surface of the guide block is transitionally connected to the wall surface of the assembly groove, and the guide ramp is inclined toward the wall surface of the assembly groove.

[0010] A further improvement to the above scheme is that multiple guide blocks are evenly distributed in a ring on the assembly groove.

[0011] A further improvement to the above scheme is that the end of the guide block is provided with a chamfer, and one end of the chamfer extends to the guide slope.

[0012] A further improvement to the above solution is that the outer shell is provided with a right-angle connecting part, which is used to connect the corner of the assembly groove.

[0013] A further improvement to the above solution is that the outer shell is provided with an extended inner ring, the extended inner ring is provided with a third sealing groove, the third sealing groove is provided with a third sealing ring, and the third sealing ring is used to seal the bottom surface of the groove of the abutment assembly groove.

[0014] The beneficial effects of this utility model are:

[0015] Compared to existing motor end cover installations, this invention offers superior sealing performance. The end sealing ring within the end sealing groove abuts against the end seal of the first rotary connecting element, effectively preventing dust, moisture, and other impurities from entering the motor and corroding its electrical components. This significantly improves the cleanliness of the motor's operating environment, extends its service life, and enhances its stability and reliability. Regarding the connection structure, the inner ring at the tail connects to the outer diameter of the first rotary connecting element, providing a stable mechanical connection between the tail end cover and the base. This ensures no relative wobbling or displacement during motor operation, guaranteeing the overall stability of the motor structure and facilitating the normal performance of all motor components. Multiple guide blocks with guide bevels on the outer periphery of the assembly groove provide precise guidance during housing assembly, allowing the housing to be quickly and accurately aligned with the assembly groove. This greatly improves assembly efficiency, reduces human error during assembly, and promotes standardized and automated production of motor end cover assembly, lowering production costs while improving product quality consistency. Attached Figure Description

[0016] Figure 1 A three-dimensional schematic diagram of the motor end cover assembly and positioning structure of this utility model;

[0017] Figure 2for Figure 1 Exploded view of the assembly and positioning structure of the motor end cover;

[0018] Figure 3 for Figure 1 An exploded view of the assembly and positioning structure of the motor end cover from another perspective;

[0019] Figure 4 for Figure 1 Front view schematic diagram of the assembly and positioning structure of the motor end cover;

[0020] Figure 5 for Figure 4 Sectional view of AA.

[0021] Explanation of reference numerals in the attached drawings: Base 1, Tail connecting part 11, First sealing groove 111, First rotating connecting element 12, End sealing groove 13, End sealing ring 14, Limiting plane 141, Tail end cap 2, Tail inner ring 21, Tail fixing step 211, Second sealing groove 212, Tail outer ring 22, Assembly groove 221, Guide block 222, Guide inclined surface 223, Outer shell 3, Right angle connecting part 31, Extended inner ring 32, Third sealing groove 33. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-5As shown, in one embodiment of this utility model, a motor end cover assembly and positioning structure is provided, including a base 1, a tail end cover 2, and a housing 3. The base 1 is provided with a tail connecting part 11, and the tail connecting part 11 is provided with a first rotary connecting element 12. An end sealing groove 13 is provided on the side of the base 1 near the tail connecting part 11, and an end sealing ring 14 is provided in the end sealing groove 13. The end sealing ring 14 seals against the end of the first rotary connecting element 12. The tail end cover 2 is provided with an inner tail ring 21 and an outer tail ring 22. The inner tail ring 21 is connected to the outer diameter of the first rotary connecting element 12. The outer tail ring 22 is provided with an assembly groove 221. A plurality of guide blocks 222 are provided on the outer periphery of the assembly groove 221. The guide blocks 222 are provided with guide inclined surfaces 223. The guide inclined surfaces 223 are used to guide the housing 3 toward the assembly groove 221. In terms of sealing performance, the end sealing ring 14 in the end sealing groove 13 abuts against the end seal of the first rotary connecting element 12, effectively preventing dust, moisture, and other impurities from entering the motor and causing corrosion to the motor's electrical components. This significantly improves the cleanliness of the motor's operating environment, extends the motor's service life, and also helps improve the stability and reliability of the motor's operation. Regarding the connection structure, the tail inner ring 21 connects to the outer diameter of the first rotary connecting element 12, providing a stable mechanical connection between the tail end cover 2 and the base 1. This ensures that the two will not wobble or shift relative to each other during motor operation, guaranteeing the stability of the overall motor structure and facilitating the normal performance of the motor. Multiple guide blocks 222 with guide slopes 223 on the outer periphery of the assembly groove 221 provide precise guidance during the assembly of the outer casing 3, allowing the outer casing 3 to be quickly and accurately installed towards the assembly groove 221. This greatly improves assembly efficiency, reduces human error during assembly, and facilitates standardized and automated production of motor end cover assembly, reducing production costs while improving product quality consistency.

[0025] The tail connector 11 is provided with a first sealing groove 111 located below the end sealing groove 13. A first sealing ring is provided in the first sealing groove 111, which abuts against the inner diameter of the first rotary connecting element 12. In this embodiment, the sealing performance is enhanced. The first sealing ring abuts against the inner diameter of the first rotary connecting element 12, which can effectively prevent dust, moisture and other impurities from entering the motor, preventing them from corroding key components such as motor windings and iron core, thereby extending the service life of the motor and reducing the failure rate caused by impurities. Assembly stability is improved. The presence of the sealing ring can buffer the vibration and impact generated during motor operation to a certain extent, reduce loosening and displacement between components, ensure a stable assembly relationship between the motor end cover and the first rotary connecting element 12, and enable the motor to maintain good mechanical stability during operation.

[0026] A limiting plane 141 is provided on one side of the end sealing ring 14, which is used to limit one side of the end sealing ring 14. In this embodiment, the limiting plane 141 can accurately define the position of the end sealing ring 14, ensuring that it is in the correct position during assembly, effectively avoiding sealing failure caused by the misalignment of the sealing ring. When the motor is running, the accurately installed end sealing ring 14 can better prevent dust, moisture and other impurities from entering the motor, ensuring the normal operating environment of the internal components of the motor, thereby extending the service life of the motor. The limiting plane 141 provides stable support for the end sealing ring 14, preventing the sealing ring from shifting or shaking under the vibration and impact force generated by the motor operation, thus maintaining the reliability of the seal.

[0027] The inner ring 21 at the tail end is provided with a tail-end fixing step 211, which is used to fix the first rotary connecting element 12. Specifically, the wall surface of the tail-end fixing step 211 is provided with a second sealing groove 212, and a second sealing ring is provided in the second sealing groove 212. The second sealing ring is used to abut against the outer diameter of the first rotary connecting element 12. In this embodiment, the tail-end fixing step 211 can accurately and firmly fix the first rotary connecting element 12, ensuring that it maintains an accurate position during motor operation, effectively avoiding failures caused by loose connecting elements, and improving the stability of the overall motor structure. The second sealing groove 212 and the second sealing ring provided on the wall surface of the tail-end fixing step 211 enhance the performance of the entire structure. The second sealing ring tightly abuts against the outer diameter of the first rotary connecting element 12, forming a reliable sealing protection. It effectively blocks external dust, moisture and other impurities from entering the motor, preventing them from corroding and damaging the precision components inside the motor, and extending the service life of the motor.

[0028] The inner wall of the guide block 222 is seamlessly connected to the wall of the mounting groove 221, and the guide ramp 223 is inclined towards the wall of the mounting groove 221. In this embodiment, the inclined design of the guide ramp 223 provides precise guidance for the assembly of the motor end cover. During assembly, the end cover can smoothly slide into the mounting groove 221 along the guide ramp 223, effectively reducing assembly deviations and jamming, and greatly improving assembly efficiency and accuracy. The seamless connection enhances the stability of the structure. During motor operation, it can better resist vibration and impact, prevent the end cover from shifting due to external forces, and ensure the reliability of the overall motor structure.

[0029] Multiple guide blocks 222 are evenly distributed in a ring on the assembly groove 221. Specifically, the ends of the guide blocks 222 are chamfered, with one end of the chamfer extending to the guide slope 223. In this embodiment, the evenly distributed ring of guide blocks 222 provides omnidirectional and uniform positioning guidance for the assembly of the motor end cover, ensuring that the end cover falls smoothly along an accurate path during assembly, effectively reducing the possibility of end cover offset or tilting, thereby greatly improving the precision and accuracy of assembly. The chamfer at the ends of the guide blocks 222 further optimizes the assembly process. With one end of the chamfer extending to the guide slope 223, when the motor end cover approaches the assembly position, the chamfer can smoothly guide the end cover into the assembly position quickly and accurately, reducing jamming during assembly and improving assembly efficiency.

[0030] The outer casing 3 is provided with a right-angle connecting part 31, which is used to connect to the corner of the assembly groove 221. Specifically, the outer casing 3 is provided with an extended inner ring 32, which is provided with a third sealing groove 33. A third sealing ring is provided in the third sealing groove 33, which is used to seal against the bottom surface of the assembly groove 221. In this embodiment, the right-angle connecting part 31 connects to the corner of the assembly groove 221, which can accurately position the outer casing 3, ensure the accuracy and stability of the motor end cover assembly, effectively avoid the problem of incomplete assembly due to position deviation, and improve assembly efficiency and quality. The extended inner ring 32 and the third sealing groove 33 and the third sealing ring thereon achieve a good seal on the bottom surface of the assembly groove 221. The third sealing ring tightly abuts against the bottom surface of the groove, which can effectively prevent dust, moisture and other impurities from entering the motor, avoid corrosion and damage to the precision components inside the motor, and extend the service life of the motor. At the same time, the sealed structure can reduce the interference of external factors on the motor's operating environment, ensure that the motor operates under stable conditions, and reduce the probability of failure caused by environmental factors.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A motor end cover assembly and positioning structure, characterized in that: The device includes a base, a tail end cap, and a housing. The base has a tail connecting portion, which has a first rotary connecting element. The base has an end sealing groove on the side near the tail connecting portion, and an end sealing ring is provided in the end sealing groove. The end sealing ring seals against the end of the first rotary connecting element. The tail end cap has an inner tail ring and an outer tail ring. The inner tail ring is connected to the outer diameter of the first rotary connecting element. The outer tail ring has an assembly groove, and multiple guide blocks are provided around the outer periphery of the assembly groove. Each guide block has a guide slope, which guides the housing toward the assembly groove.

2. The motor end cover assembly and positioning structure according to claim 1, characterized in that: The tail connection portion is provided with a first sealing groove on the lower side of the end sealing groove, and a first sealing ring is provided in the first sealing groove. The first sealing ring is used to abut against the inner diameter of the first rotary connecting element.

3. The motor end cover assembly and positioning structure according to claim 1, characterized in that: A limiting plane is provided on one side of the end sealing ring, and the limiting plane is used to limit one side of the end sealing ring.

4. The motor end cover assembly and positioning structure according to claim 1, characterized in that: The inner ring at the tail end is provided with a tail-fixing step, which is used to fix the first rotating connecting element.

5. The motor end cover assembly and positioning structure according to claim 4, characterized in that: The wall surface of the tail fixed step is provided with a second sealing groove, and a second sealing ring is provided in the second sealing groove. The second sealing ring is used to abut against the outer diameter of the first rotary connecting element.

6. The motor end cover assembly and positioning structure according to claim 1, characterized in that: The inner wall of the guide block is transitionally connected to the wall of the assembly groove, and the guide ramp is inclined toward the wall of the assembly groove.

7. The motor end cover assembly and positioning structure according to claim 1, characterized in that: Multiple guide blocks are evenly distributed in a ring on the assembly groove.

8. The motor end cover assembly and positioning structure according to claim 1, characterized in that: The guide block has a chamfer at one end, and one end of the chamfer extends to the guide slope.

9. The motor end cover assembly and positioning structure according to claim 1, characterized in that: The outer casing is provided with a right-angle connecting part, which is used to connect the corner of the mounting groove.

10. The motor end cover assembly and positioning structure according to claim 9, characterized in that: The outer shell is provided with an extended inner ring, the extended inner ring is provided with a third sealing groove, the third sealing groove is provided with a third sealing ring, and the third sealing ring is used to seal the bottom surface of the groove of the assembly groove.

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