An assembled motor sleeve structure for ensuring discharge distance

Abstract

The utility model discloses an assembled motor sleeve structure of ensuring discharge distance relates to motor sleeve technical field, aims at solving the technical problem of the shortening of discharge distance between coil and motor base. Its technical scheme main points are: including base cylinder, cover plate and stator punching sheet, the cover plate and stator punching sheet are set up respectively in the outside and the inside of base cylinder, the upper of stator punching sheet is provided with a plurality of stator coils, and the both sides of stator coil are provided with the bending surface, the bending surface is towards the inner circumferential surface of base cylinder, and is equipped with discharge space between the inner circumferential surface of base cylinder and stator coil. The utility model discloses the purpose lies in providing a kind of assembled motor sleeve structure of ensuring discharge distance.

Description

Technical Field

[0001] This utility model relates to a motor sleeve, and more specifically, to an assembled motor sleeve structure that ensures discharge distance. Background Technology

[0002] Motor sleeves are mainly used to fix and protect motor rotor assemblies, playing a key role, especially in high-speed permanent magnet motors.

[0003] In existing technologies, such as Figure 1 As shown, in order to meet the requirements of rotor installation and structural strength, the stator coil ends are raised by increasing the distance between the stator laminations and the frame.

[0004] The above technical solution will result in a shortened discharge distance between the coil and the motor frame.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an assembled motor sleeve structure that ensures the discharge distance.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an assembled motor sleeve structure that ensures discharge distance, characterized in that: it includes a base cylinder, an outer cover plate, and stator laminations, wherein the outer cover plate and stator laminations are respectively disposed on the outer and inner sides of the base cylinder, a plurality of stator coils are wound on the stator laminations, and both sides of the stator coils are provided with bending surfaces, the bending surfaces facing the inner circumferential surface of the base cylinder, and a discharge space is provided between the inner circumferential surface of the base cylinder and the stator coils.

[0008] By adopting the above technical solution—a three-section assembly structure comprising the base cylinder, outer cover plate, and stator laminations—the discharge distance is effectively increased through structural optimization without altering the stator lamination dimensions. This design ensures electrical safety, maintains the versatility of the stator laminations, reduces material costs, and is suitable for various motor models. The outer cover plate and stator laminations, designed to enlarge the electrical clearance, allow for standardized dimensions for the same voltage, while the base cylinder can be adjusted according to different stator lengths. This not only reduces material costs but also simplifies the overall structure, decreases machining workload, and improves the versatility of the stator laminations, making it suitable for various motor models.

[0009] The present invention is further configured such that the outer circumferential surface and the inner circumferential surface of the base cylinder are respectively welded to the outer cover plate and the stator lamination.

[0010] The present invention is further configured such that: a plurality of inner welding liquid grooves are provided on the inner circumferential surface of the base cylinder, and a plurality of inner welding protrusions are provided on the stator lamination.

[0011] The present invention is further configured such that: a plurality of longitudinal water channel ribs are provided on the outer circumferential surface of the base cylinder, and the water channel ribs form flow channels.

[0012] The present invention is further configured such that: a plurality of first external welding liquid grooves and second external welding liquid grooves are respectively opened on the outer circumferential surface of the base cylinder and the inner circumferential surface of the outer cover plate, and a plurality of external welding protrusions are provided at both ends of the longitudinal water channel rib.

[0013] The present invention is further configured such that: a plurality of connecting blocks are bolted to the outer circumferential surface of the base cylinder, and one end of the connecting block is bolted to the inner circumferential surface of the outer cover plate.

[0014] The present invention is further configured such that: a plurality of interference holes are provided on the stator lamination, the base cylinder and the outer cover plate, and interference pins are provided on the interference holes, the interference pins being connected to the interference holes of the stator lamination, the base cylinder and the outer cover plate.

[0015] The present invention is further configured such that a support base is provided at both ends of the outer cover plate and the base cylinder.

[0016] The present invention has the following advantages: 1. Through structural optimization, the discharge space between the stator coil and the inner wall of the machine base cylinder is effectively increased without increasing the size of the stator lamination, thus meeting safety requirements.

[0017] 2. Multiple connection methods, such as welding, bolted connection blocks, and interference pins, are adopted to ensure a firm connection between the machine base cylinder, outer cover plate, and stator laminations, effectively transmitting torque and withstanding electromagnetic force, vibration, and coolant pressure.

[0018] 3. The longitudinal water channel ribs form a cooling flow channel, and the coolant flushes the machine base cylinder to improve heat dissipation performance. Attached Figure Description

[0019] Figure 1 This is a plan view of the prior art;

[0020] Figure 2 This is a plan view of this embodiment;

[0021] Figure 3 This is a three-dimensional structural diagram of this embodiment;

[0022] Figure 4 This is a schematic diagram showing the connection between the base cylinder, outer cover plate, and stator laminations in this embodiment;

[0023] Figure 5 This is a three-dimensional structural diagram of the outer cover plate in this embodiment;

[0024] Figure 6 This is a cross-sectional view of the machine base cylinder in this embodiment;

[0025] Figure 7 This is a three-dimensional structural diagram of the stator lamination in this embodiment.

[0026] Figure descriptions: 1. Base cylinder; 2. Outer cover plate; 3. Stator lamination; 4. Stator coil; 5. Bending surface; 6. Discharge space; 7. Inner welding liquid tank; 8. Inner welding protrusion; 9. Longitudinal water channel rib; 10. First outer welding liquid tank; 11. Second outer welding liquid tank; 12. Outer welding protrusion; 13. Connecting block; 14. Interference hole; 15. Interference pin; 16. Support base. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0029] like Figures 2 to 4 As shown, an assembled motor sleeve structure for ensuring discharge distance includes a base sleeve 1, an outer cover plate 2, and a stator lamination 3. The outer cover plate 2 and the stator lamination 3 are respectively disposed on the outer and inner sides of the base sleeve 1. A plurality of stator coils 4 are wound on the stator lamination 3. Bending surfaces 5 are provided on both sides of the stator coils 4, and the bending surfaces 5 face the inner circumferential surface of the base sleeve 1. A discharge space 6 is provided between the inner circumferential surface of the base sleeve 1 and the stator coils 4.

[0030] In existing technical solutions, increasing the size of the stator laminations 3 increases material costs, the overall size and weight of the motor, and affects the utilization of installation space. Furthermore, the stator laminations 3 are not universally compatible, requiring separate designs for different models. The current solution employs a three-section assembly structure: the frame cylinder 1, the outer cover plate 2, and the stator laminations 3. Without altering the size of the stator laminations 3, structural optimization effectively increases the discharge distance. This design ensures electrical safety, maintains the versatility of the stator laminations 3, reduces material costs, and is suitable for various motor models. The outer cover plate 2 and stator laminations 3 enlarge the electrical clearance, allowing for standardized dimensions for the same voltage. The frame cylinder 1 can be adjusted according to different stator lengths.

[0031] like Figure 4 As shown, the outer circumferential surface and the inner circumferential surface of the base cylinder 1 are welded to the outer cover plate 2 and the stator lamination 3, respectively; the welding provides a very strong connection, which can effectively transmit the stator torque and withstand the electromagnetic force and vibration during motor operation, ensuring the stability of the overall structure.

[0032] like Figures 6 to 7 As shown, several inner welding liquid grooves 7 are provided on the inner circumferential surface of the base cylinder 1, and several inner welding protrusions 8 are provided on the stator lamination 3.

[0033] When the stator lamination 3 is welded to the inner circumferential surface of the base cylinder 1, the inner welding protrusion 8 can squeeze out the welding liquid from the inner welding liquid tank 7, which facilitates the welding of the two.

[0034] like Figure 6 As shown, several longitudinal water channel ribs 9 are provided on the outer circumferential surface of the base cylinder 1, and the water channel ribs form flow channels.

[0035] The longitudinal water channel ribs 9 form coolant flow channels directly on the outer surface of the base cylinder 1, greatly improving heat dissipation efficiency. The coolant flows directly over the carrier of the main heat source, carrying away heat. The longitudinal water channel ribs 9 also increase the rigidity and strength of the base cylinder 1.

[0036] like Figures 5 to 6 As shown, a number of first external welding liquid grooves 10 and second external welding liquid grooves 11 are respectively opened on the outer circumferential surface of the base cylinder 1 and the inner circumferential surface of the outer cover plate 2, and a number of external welding protrusions 12 are provided at both ends of the longitudinal water channel rib 9.

[0037] Increase the size and quality of the welds to ensure that the connection between the water channel reinforcement area and the outer cover plate 2 is strong enough to withstand the coolant pressure and thermal stress.

[0038] like Figure 4 As shown, several connecting blocks 13 are bolted to the outer circumferential surface of the base cylinder 1, and one end of the connecting block 13 is bolted to the inner circumferential surface of the outer cover plate 2.

[0039] The connecting block 13 is located in the area between the water channel ribs 9, further enhancing the overall rigidity and connection reliability between the outer cover plate 2 and the base cylinder 1, especially when subjected to large torque or vibration. It can also help disperse stress near the welding area.

[0040] Several interference holes 14 are provided on the stator lamination 3, the machine base cylinder 1 and the outer cover plate 2. Interference pins 15 are provided on the interference holes 14, and the interference pins 15 are connected to the interference holes 14 of the stator lamination 3, the machine base cylinder 1 and the outer cover plate 2.

[0041] like Figures 3 to 4 As shown, the fit between the interference pin 15 and the interference hole 14 ensures precise alignment of the three-layer structure of stator lamination 3, machine base cylinder 1, and outer cover plate 2 during assembly, preventing cumulative errors. This enhances the torsional stiffness and stability of the overall structure.

[0042] like Figure 3 As shown, a support base 16 is provided at both ends of the outer cover plate 2 and the base cylinder 1.

[0043] It provides a stable supporting foundation for the entire assembled sleeve structure, improves the bending stiffness of the entire motor structure, and prevents deformation under load or its own weight.

[0044] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. An assembled motor sleeve structure for ensuring discharge distance, characterized in that: The device includes a base cylinder (1), an outer cover plate (2), and a stator lamination (3). The outer cover plate (2) and the stator lamination (3) are respectively disposed on the outer side and the inner side of the base cylinder (1). A plurality of stator coils (4) are wound on the stator lamination (3). Both sides of the stator coils (4) are provided with bending surfaces (5). The bending surfaces (5) face the inner circumferential surface of the base cylinder (1). A discharge space (6) is provided between the inner circumferential surface of the base cylinder (1) and the stator coils (4).

2. The assembled motor sleeve structure for ensuring discharge distance according to claim 1, characterized in that: The outer circumferential surface and the inner circumferential surface of the base cylinder (1) are respectively welded to the outer cover plate (2) and the stator lamination (3).

3. The assembled motor sleeve structure for ensuring discharge distance according to claim 2, characterized in that: The machine base cylinder (1) has several inner welding liquid grooves (7) on its inner circumferential surface, and the stator lamination (3) has several inner welding protrusions (8).

4. The assembled motor sleeve structure for ensuring discharge distance according to claim 3, characterized in that: The outer circumferential surface of the base cylinder (1) is provided with a number of longitudinal water channel ribs (9), which form flow channels.

5. The assembled motor sleeve structure for ensuring discharge distance according to claim 4, characterized in that: The outer circumferential surface of the base cylinder (1) and the inner circumferential surface of the outer cover plate (2) are respectively provided with a number of first outer welding liquid grooves (10) and second outer welding liquid grooves (11), and a number of outer welding protrusions (12) are provided at both ends of the longitudinal water channel rib (9).

6. The assembled motor sleeve structure for ensuring discharge distance according to claim 5, characterized in that: The outer circumferential surface of the base cylinder (1) is bolted with several connecting blocks (13), and one end of the connecting block (13) is bolted to the inner circumferential surface of the outer cover plate (2).

7. The assembled motor sleeve structure for ensuring discharge distance according to claim 6, characterized in that: The stator lamination (3), the base cylinder (1) and the outer cover plate (2) are all provided with a plurality of interference holes (14), and interference pins (15) are provided on the interference holes (14). The interference pins (15) are connected to the interference holes (14) of the stator lamination (3), the base cylinder (1) and the outer cover plate (2).

8. The assembled motor sleeve structure for ensuring discharge distance according to claim 7, characterized in that: Both ends of the outer cover plate (2) and the base cylinder (1) are provided with a support base (16).

Images