Motor

Abstract

The utility model relates to the technical field of power motors, in particular to a motor, which comprises a base, a stator assembly, a rotor shell, a rotor assembly, a rotating shaft assembly and an end cover, one end of the base is provided with a connecting column, the other end of the base is provided with a fixed seat, the fixed seat is provided with a placement cavity, the connecting column is internally provided with a rotating cavity, and the rotating cavity is internally provided with a rotating shaft. One end of the rotating cavity is communicated with the placement cavity; the stator assembly is arranged on the periphery of the connecting column, the rotating shaft assembly is arranged in the rotating cavity, one end of the rotating shaft assembly extends out of the rotating cavity to be connected with the rotor shell, the rotor shell comprises a rotor cover and a rotor ring, and one end of the rotor ring is connected with the rotor cover; the connecting column and the fixing base are designed at the two ends of the base respectively, the stability of the whole structure is enhanced, the rotating cavity and the containing cavity are integrated, and the dual functions of power transmission and component containing are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power motors, in particular to a motor. Background Art

[0002] With the development of motor technology, higher requirements are being placed on motor output capacity, requiring higher torque output at low speeds, minimal torque ripple, and high control precision. Direct-drive motors introduce a modulated pole structure to the stator teeth of traditional permanent magnet motors. Utilizing a special vernier effect, this structure modulates the magnetic field of the low-pole-pair-number, high-speed stator armature winding to produce a harmonic magnetic field component that matches and interacts with the high-pole-pair-number, low-speed permanent magnet magnetic field.

[0003] The stability of the motor's internal structure and control integration must be ensured during use. Existing motors are difficult to install and have poor stability. Therefore, improvements are needed to the existing motor structure. Utility Model Content

[0004] In order to solve the above problems, the base of the utility model is designed with connecting columns and fixing seats at both ends, which not only strengthens the stability of the overall structure, but also integrates the rotating cavity and the placement cavity to realize the dual functions of power transmission and component placement of the motor.

[0005] The technical solution adopted by the present invention is: a motor, including a base, a stator assembly, a rotor housing, a rotor assembly, a rotating shaft assembly and an end cover, wherein a connecting column is provided at one end of the base and a fixing seat is provided at the other end, the fixing seat is provided with an installation cavity, a rotating cavity is provided inside the connecting column, and one end of the rotating cavity is communicated with the installation cavity; the stator assembly is arranged on the outer periphery of the connecting column, the rotating shaft assembly is arranged in the rotating cavity, one end of the rotating shaft assembly extends out of the rotating cavity and is connected to the rotor housing, the rotor housing includes a rotor cover and a rotor ring, one end of the rotor ring is connected to the rotor cover, the rotor cover is provided with an assembly slot, the assembly slot extends toward the rotor ring, the rotor assembly is composed of a plurality of rotor magnetic tiles, one end of the rotor magnetic tile is inserted into the assembly slot; the end cover is arranged on one side of the base and covers the installation cavity.

[0006] A further improvement to the above solution is that the fixing seat is provided with a heat dissipation groove, one end of which is connected to the stator assembly.

[0007] A further improvement to the above solution is that a convex ring is provided on one side of the fixing seat, the convex ring protrudes toward the rotor ring, and a gap is provided between the convex ring and the rotor ring.

[0008] A further improvement to the above solution is that the placement cavity is provided with a mounting column, an electric control board is installed on the mounting column, the end cover is provided on the fixing seat and covers the placement cavity; a connection port is provided on one side of the fixing seat, and the electric control board is provided with a connector facing the connection port.

[0009] A further improvement to the above scheme is that a rotating bearing is provided in the rotating cavity, the rotating shaft assembly can be rotatably provided on the rotating bearing, a sensor is provided at one end of the rotating shaft assembly and a fixed head is provided at the other end, the fixed head is connected to the rotor cover, and the sensor faces the placement cavity.

[0010] A further improvement to the above solution is that the rotor cover is provided with a reinforcement sleeve, one end of which extends toward the rotary bearing and is used to press the rotary bearing into the rotary cavity.

[0011] A further improvement to the above solution is that the stator assembly includes a stator bracket and a stator winding, the stator bracket is arranged on the connecting column, and the stator winding is arranged on the stator bracket.

[0012] A further improvement to the above solution is that an assembly step is provided on the outer side of the rotor cover, an assembly ring is provided on one side of the assembly step, a plurality of assembly slots are provided, and the plurality of assembly slots are evenly distributed on the assembly ring in a circumferential direction; a reinforcing rib is provided on the inner side of the assembly ring.

[0013] A further improvement to the above solution is that the end cover is provided with a snap ring, and the fixing seat is provided with a matching ring, and the snap ring is used to snap on the matching ring.

[0014] A further improvement to the above solution is that the end cover is provided with a through hole, the fixing seat is provided with an assembly positioning hole, the through hole and the assembly positioning hole are coaxially arranged; and an assembly positioning ring is provided on one side of the end cover.

[0015] The beneficial effects of the utility model are:

[0016] Compared with existing motors, the base of the present invention is designed with connecting columns and fixing seats at both ends, which not only strengthens the stability of the overall structure, but also integrates the rotating cavity and the placement cavity, realizing the dual functions of power transmission and component placement. The stator assembly is arranged close to the connecting column, which optimizes the electromagnetic field distribution and improves the energy conversion efficiency. The rotating shaft assembly has a built-in rotating cavity to ensure stability and low friction loss during high-speed rotation. At the same time, the precise connection between its end and the rotor housing realizes efficient power transmission. The rotor housing is composed of a rotor cover and a rotor ring. In particular, the assembly slot design on the rotor cover provides a convenient way to install the rotor magnet, enhancing the assembly flexibility and structural strength of the rotor assembly. The plug-in layout of multiple rotor magnets effectively improves the uniformity and strength of the magnetic field, thereby enhancing the output torque and running smoothness of the motor. The closed protection of the placement cavity by the end cover effectively isolates the interference of the external environment on the internal precision components, improves the dustproof, waterproof and anti-electromagnetic interference capabilities of the placement cavity, and extends the service life. With its compact and reasonable structural layout, efficient and stable power transmission mechanism and excellent protection performance, this utility model provides an ideal choice for various application scenarios that require high-precision and high-reliability power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the motor of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the top view of the motor;

[0019] Figure 3 for Figure 2 Cross-sectional view of AA;

[0020] Figure 4 for Figure 1 Exploded diagram of the motor;

[0021] Figure 5 for Figure 1 Explosion diagram of the motor from another perspective;

[0022] Figure 6 for Figure 1 Schematic diagram of the rotor housing of the motor.

[0023] Explanation of the accompanying drawings: base 1, connecting column 11, fixing seat 12, heat dissipation groove 121, convex ring 122, connecting port 123, mating ring 124, assembly positioning hole 125, placement cavity 13, mounting column 131, electronic control board 132, rotating cavity 14, rotating bearing 141, stator assembly 2, stator bracket 21, stator winding 22, rotor housing 3, rotor cover 31, assembly slot 311, assembly step 312, assembly ring 313, reinforcement rib 314, reinforcement sleeve 315, rotor ring 32, rotor assembly 4, rotor magnetic tile 41, rotating shaft assembly 5, inductor 51, fixing head 52, end cover 6, snap ring 61, through hole 62, assembly positioning ring 63. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0025] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention. Figures 1 to 6As shown, in one embodiment of the present invention, a motor is provided, including a base 1, a stator assembly 2, a rotor housing 3, a rotor assembly 4, a rotating shaft assembly 5 and an end cover 6. A connecting column 11 is provided at one end of the base 1, and a fixing seat 12 is provided at the other end. The fixing seat 12 is provided with a placement cavity 13. A rotating cavity 14 is provided inside the connecting column 11, and one end of the rotating cavity 14 is connected to the placement cavity 13; the stator assembly 2 is provided on the periphery of the connecting column 11, and the rotating shaft assembly 5 is provided in the rotating cavity 14, one end of the shaft assembly 5 extends out of the rotating cavity 14 and connects to the rotor housing 3. The rotor housing 3 includes a rotor cover 31 and a rotor ring 32. One end of the rotor ring 32 is connected to the rotor cover 31. The rotor cover 31 is provided with an assembly slot 311 that extends toward the rotor ring 32. The rotor assembly 4 is composed of multiple rotor magnets 41, one end of which is inserted into the assembly slot 311. The end cap 6 is arranged on one side of the base 1 and covers the receiving cavity 13. In this embodiment, the base 1 is designed with connecting posts 11 and fixing seats 12 at both ends, which not only strengthen the overall structural stability but also integrate the rotating cavity 14 and the receiving cavity 13, achieving the dual functions of power transmission and component placement. The stator assembly 2 is arranged closely against the connecting posts 11, optimizing the electromagnetic field distribution and improving energy conversion efficiency. The internal rotating cavity 14 of the shaft assembly 5 ensures stability and low friction loss during high-speed rotation. At the same time, the precise connection between its end and the rotor housing 3 achieves efficient power transmission. The rotor housing 3 is composed of a rotor cover 31 and a rotor ring 32. In particular, the design of the assembly slot 311 on the rotor cover 31 provides a convenient way to install the rotor magnetic tile 41, thereby enhancing the assembly flexibility and structural strength of the rotor assembly 4. The plug-in layout of multiple rotor magnetic tiles 41 effectively improves the uniformity and strength of the magnetic field, thereby enhancing the output torque and running stability of the motor. The closed protection of the housing cavity 13 by the end cover 6 effectively isolates the interference of the external environment on the internal precision components, improves the dustproof, waterproof and anti-electromagnetic interference capabilities of the housing cavity 13, and extends the service life. With its compact and reasonable structural layout, efficient and stable power transmission mechanism and excellent protection performance, this embodiment provides an ideal choice for various application scenarios that require high-precision and high-reliability power sources.

[0027] The fixing base 12 is provided with a heat dissipation slot 121, one end of which is connected to the stator assembly 2. In this embodiment, by directly connecting to the stator assembly 2, the rapid extraction and dissipation of heat within the motor is effectively promoted. The heat dissipation slot 121 acts as a bridge between heat conduction and convection heat dissipation, not only increasing the heat dissipation area, but also optimizing the heat path, significantly reducing the high temperature accumulation caused by long-term operation of the stator assembly 2. This not only improves the operating efficiency and stability of the motor, but also extends the service life of the motor assembly and reduces the risk of performance degradation or failure due to overheating.

[0028] A raised ring 122 is provided on one side of the fixing seat 12. The raised ring 122 protrudes toward the rotor ring 32, and a gap is provided between the raised ring 122 and the rotor ring 32. In this embodiment, the raised design of the raised ring 122 facing the rotor ring 32 effectively reduces friction and vibration during rotation through a precisely controlled gap, reduces energy loss, and facilitates heat dissipation. At the same time, this structure also enhances the positioning accuracy of the rotor ring 32, ensuring the smooth operation and precision requirements of the motor. In addition, the presence of the raised ring 122 also serves to prevent dust and foreign matter intrusion, protecting the key internal components of the motor from external environmental influences and extending the service life of the motor.

[0029] The placement cavity 13 is provided with a mounting post 131, and an electric control board 132 is mounted on the mounting post 131. The end cover 6 is provided on the fixing seat 12 and covers the placement cavity 13; a connection port 123 is provided on one side of the fixing seat 12, and the electric control board 132 is provided with a connector facing the connection port 123. In this embodiment, the electric control board 132 is firmly installed in the placement cavity 13 by means of the mounting post 131, which ensures the stability and safety of the electrical components and facilitates maintenance and upgrading. The end cover 6 tightly covers the placement cavity 13, which not only protects the internal components from the external environment, but also optimizes the overall sealing of the motor. The connection port 123 on the side of the fixing seat 12 is precisely docked with the connector on the electric control board 132, realizing efficient data transmission and command reception between the motor and the external control system, enhancing the intelligent control level of the motor, and improving the operating accuracy and response speed.

[0030] A rotating bearing 141 is disposed within the rotating chamber 14. The rotating shaft assembly 5 is rotatably mounted on the rotating bearing 141. An inductor 51 is disposed at one end of the rotating shaft assembly 5, and a fixed head 52 is disposed at the other end. The fixed head 52 is connected to the rotor cover 31, with the inductor 51 facing the mounting chamber 13. Specifically, the rotor cover 31 is provided with a reinforced sleeve 315, one end of which extends toward the rotating bearing 141 and is used to press the rotating bearing 141 into the rotating chamber 14. In this embodiment, the rotating shaft assembly 5 achieves smooth rotation through the rotating bearing 141, reducing friction and wear. Simultaneously, the sensor 51 integrated at one end accurately monitors the rotor position or speed, improving control accuracy and response speed. The reinforced sleeve 315 design, with the fixed head 52 at the other end connected to the rotor cover 31, not only enhances structural stability but also effectively prevents loosening of the bearing by directly pressing the rotating bearing 141 into the rotating chamber 14, ensuring the reliability of the motor under high load or high-speed operation. In this embodiment, the sensor 51 is an inductive magnetic ring, and a sensing element is provided on the electric control board 132 to cooperate with the sensor to sense the rotation angle of the motor.

[0031] The stator assembly 2 includes a stator bracket 21 and a stator winding 22. The stator bracket 21 is arranged on the connecting column 11, and the stator winding 22 is arranged on the stator bracket 21. In this embodiment, by firmly mounting the stator bracket 21 on the connecting column 11, not only is the stability and reliability of the stator structure ensured in high-speed rotation or vibration environments, but it also facilitates subsequent maintenance and upgrades. The stator winding 22 is precisely arranged on the stator bracket 21, effectively optimizing the electromagnetic field distribution, improving energy conversion efficiency, and reducing power loss. This structural arrangement has significant technical effects on increasing the output power of the motor, reducing operating noise, and extending its service life.

[0032] The rotor cover 31 is provided with an assembly step 312 on its exterior. A mounting ring 313 is positioned on one side of the assembly step 312. Multiple assembly slots 311 are provided, evenly distributed around the assembly ring 313. Reinforcement ribs 314 are positioned on the interior of the assembly ring 313. In this embodiment, the multiple evenly distributed assembly slots 311 on the assembly ring 313 not only facilitate precise alignment and installation but also strengthen the connection between the rotor and other components, ensuring the stability and reliability of the motor during high-speed operation. Furthermore, the reinforcement ribs 314 added on the interior of the assembly ring 313 effectively disperse stress, enhancing the overall structure's load-bearing capacity and resistance to deformation, further extending the motor's service life.

[0033] The end cap 6 is provided with a snap ring 61, and the fixing seat 12 is provided with a matching ring 124. The snap ring 61 is used to snap onto the matching ring 124. In this embodiment, the sealing performance of the motor is enhanced, effectively preventing external impurities such as dust and moisture from invading the interior of the motor, and protecting the motor components from damage. The assembly process is simplified, and the precise docking of the snap ring 61 and the matching ring 124 improves assembly efficiency and reduces assembly costs. The overall stability and durability of the motor are improved. The snap-fit mechanism ensures a tight connection between the end cap 6 and the fixing seat 12, and remains stable when the motor is running at high speed, thereby extending the service life of the motor.

[0034] The end cap 6 is provided with a through hole 62, and the fixing base 12 is provided with an assembly positioning hole 125, which is coaxially arranged with the assembly positioning hole 125. An assembly positioning ring 63 is provided on one side of the end cap 6. In this embodiment, precise alignment between the various components of the motor is ensured, reducing performance fluctuations caused by assembly errors. At the same time, the assembly positioning ring 63 on the surface of the end cap 6 serves as an auxiliary positioning structure, further enhancing the stability and reliability of the assembly process and effectively preventing misalignment and offset during assembly. This optimizes the overall structural compactness of the motor and significantly enhances the smoothness and durability of its operation.

[0035] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A motor, characterized in that: The invention comprises a base, a stator assembly, a rotor housing, a rotor assembly, a rotating shaft assembly and an end cover, wherein a connecting column is provided at one end of the base and a fixing seat is provided at the other end, the fixing seat is provided with an installation cavity, a rotating cavity is provided inside the connecting column, and one end of the rotating cavity is communicated with the installation cavity; the stator assembly is arranged on the outer periphery of the connecting column, the rotating shaft assembly is arranged in the rotating cavity, one end of the rotating shaft assembly extends out of the rotating cavity and is connected to the rotor housing, the rotor housing comprises a rotor cover and a rotor ring, one end of the rotor ring is connected to the rotor cover, the rotor cover is provided with an assembly slot, the assembly slot extends toward the rotor ring, the rotor assembly is composed of a plurality of rotor magnetic tiles, one end of the rotor magnetic tile is inserted into the assembly slot; the end cover is arranged on one side of the base and covers the installation cavity.

2. The motor according to claim 1, characterized in that: The fixing seat is provided with a heat dissipation groove, and one end of the heat dissipation groove is communicated with the stator assembly.

3. The motor according to claim 1, characterized in that: A convex ring is provided on one side of the fixing seat. The convex ring protrudes toward the rotor ring, and a gap is provided between the convex ring and the rotor ring.

4. The motor according to claim 1, characterized in that: The placement cavity is provided with a mounting column, an electric control board is installed on the mounting column, the end cover is provided on the fixing seat and covers the placement cavity; a connection port is provided on one side of the fixing seat, and a connector is provided on the electric control board facing the connection port.

5. The motor according to claim 1, characterized in that: A rotary bearing is provided in the rotary cavity, and the rotating shaft assembly is rotatably provided on the rotating bearing. An inductor is provided at one end of the rotating shaft assembly and a fixed head is provided at the other end. The fixed head is connected to the rotor cover, and the inductor faces the placement cavity.

6. The motor according to claim 5, characterized in that: The rotor cover is provided with a reinforcement sleeve, one end of which extends toward the rotary bearing and is used to press the rotary bearing into the rotary cavity.

7. The motor according to claim 1, characterized in that: The stator assembly includes a stator bracket and a stator winding. The stator bracket is arranged on a connecting column, and the stator winding is arranged on the stator bracket.

8. The motor according to claim 1, characterized in that: An assembly step is provided on the outer side of the rotor cover, an assembly ring is provided on one side of the assembly step, a plurality of assembly slots are provided, and the plurality of assembly slots are evenly distributed on the assembly ring in an annular direction; a reinforcing rib is provided on the inner side of the assembly ring.

9. The motor according to claim 1, characterized in that: The end cover is provided with a buckling ring, and the fixing seat is provided with a matching ring, and the buckling ring is used to buckle on the matching ring.

10. The motor according to claim 1, characterized in that: The end cover is provided with a through hole, the fixing seat is provided with an assembly positioning hole, and the through hole and the assembly positioning hole are coaxially arranged; an assembly positioning ring is provided on one side of the end cover.

Images