Aluminum shell motor

Abstract

The utility model relates to an aluminum casing motor, which comprises a casing and a motor shaft, the casing comprises an upper cover casing and a lower cover casing, and the upper cover casing and the lower cover casing are detachably installed. The upper cover shell protrudes outwards to form first protruding parts, the first protruding parts are evenly distributed in the circumferential direction of the top side wall of the upper cover shell, the lower cover shell protrudes outwards to form second protruding parts, the second protruding parts are evenly distributed in the circumferential direction of the bottom end face of the lower cover shell, and inner threaded holes are formed in the first protruding parts and the second protruding parts in a penetrating mode. According to the utility model, the casing is designed into two parts, namely the detachable upper cover casing and the detachable lower cover casing, so that internal parts of the motor can be conveniently overhauled and maintained, the structural strength of the upper cover casing and the lower cover casing can be respectively enhanced through the convex part I and the convex part II, so that the whole motor is more stable, and meanwhile, the convex part I and the convex part II are provided with the internal threaded holes, so that the motor is more stable. Through the design of the internal threaded holes, subsequent connection and installation between the motor and other equipment can be facilitated, the upper cover shell and the lower cover shell are made of aluminum shell materials, and the aluminum materials are light in weight, so that the overall weight of the motor is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an aluminum shell motor. Background Art

[0002] Aluminum shell motor is a motor made of aluminum alloy with rotor winding embedded in stator slot. Aluminum shell motor is widely used in various industrial equipment and systems, such as mechanical equipment, pump equipment, fan equipment, transmission equipment, automation equipment, industrial machinery, food machinery, packaging machinery, textile machinery, etc. In the modern industrial field, aluminum shell motor plays an increasingly important role with its high efficiency, energy saving, low noise, low vibration and long life.

[0003] The shell of the existing aluminum shell motor generally adopts an integrated structure. Although the strength and sealing of the shell structure are guaranteed, it is not convenient to disassemble and repair the internal parts of the motor. The existing patent document discloses a lightweight motor (Announcement No.: CN207542899U), and the shell in its technical solution also adopts an integrated structure. Although the shell structure is firm and has good sealing, it also has the above-mentioned technical problems and is not convenient for repairing the internal parts. Summary of the invention

[0004] The utility model aims to provide a technical solution for an aluminum shell motor in view of the deficiencies in the prior art. The design is ingenious and reasonable. The casing is designed to be a detachable upper cover shell and a lower cover shell, which can facilitate the inspection and maintenance of the internal parts of the motor. The structural strength of the upper cover shell and the lower cover shell can be respectively enhanced by the convex part one and the convex part two, so that the motor as a whole is more stable. At the same time, internal threaded holes are provided on the convex part one and the convex part two. The design of the internal threaded holes can facilitate the subsequent connection and installation between the motor and other equipment. The upper cover shell and the lower cover shell are made of aluminum shell material. The aluminum material is light in weight, so the overall weight of the motor is optimized. In addition, the thermal conductivity of aluminum is good, so the heat dissipation of the motor is good.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An aluminum shell motor comprises a casing and a motor shaft, the casing comprises an upper cover shell and a lower cover shell, and the upper cover shell and the lower cover shell are detachably installed; a convex portion one is protruded outwardly on the upper cover shell, and the convex portion one is evenly distributed along the circumference of the top side wall of the upper cover shell, and a convex portion two is protruded outwardly on the lower cover shell, and the convex portion two is evenly distributed along the circumference of the bottom end surface of the lower cover shell, and internal threaded holes are penetrated on the convex portion one and the convex portion two; the casing is designed to be a detachable upper cover shell and a lower cover shell, so that the inspection and maintenance of the internal parts of the motor can be convenient, and the structural strength of the upper cover shell and the lower cover shell can be respectively enhanced by the convex portion one and the convex portion two, so that the motor as a whole is more stable, and at the same time, the convex portion one and the convex portion two are provided with internal threaded holes, and the design of the internal threaded holes can facilitate the subsequent connection and installation between the motor and other equipment, and the upper cover shell and the lower cover shell are made of aluminum shell material, and the aluminum material is light in weight, so that the overall weight of the motor is optimized, and the thermal conductivity of aluminum is good, so that the heat dissipation of the motor is good.

[0007] Furthermore, the connection between the protrusion 1 and the upper cover shell, and the connection between the protrusion 2 and the lower cover shell are connected by arc chamfer transition. The design of arc chamfer makes the connection between the protrusion 1 and the upper cover shell, and between the protrusion 2 and the lower cover shell smoother, reduces stress concentration at the connection, improves the overall structural strength, and makes the appearance of the aluminum shell motor more beautiful.

[0008] Furthermore, an upper positioning block is provided on the outer wall of the upper cover shell, and an upper through hole is provided on the upper positioning block; a lower positioning block is provided on the outer wall of the lower cover shell, and a lower through hole is provided on the lower positioning block; the lower through holes correspond to the upper through holes one by one, and a bolt assembly is connected between the corresponding lower through holes and the upper through holes, and the upper cover shell and the lower cover shell are connected and fixed by the bolt assembly; the structural design is ingenious and reasonable, and the upper positioning block and the lower positioning block are provided, and the upper through hole is opened on the upper positioning block and the lower through hole is opened on the lower positioning block, and the bolt assembly is cooperated to realize the precise assembly and positioning of the casing, and the bolt connection can ensure the connection firmness and reliability between the upper cover shell and the lower cover shell, increase the overall stability and safety of the motor, and it is easy to disassemble and assemble, which can facilitate the subsequent maintenance and repair of the aluminum shell motor.

[0009] The top surface of the upper positioning block is symmetrically provided with a stopper edge portion 1, which is connected between the upper positioning block and the upper cover shell, and a limiting groove 1 connected to the upper through hole is formed between the stopper edge portion 1, the upper positioning block and the upper cover shell, and an avoidance groove 1 is formed on the outer wall of the upper cover shell, which corresponds to the upper positioning block one by one, and the bottom of the avoidance groove 1 extends into the limiting groove 1 and intersects with the corresponding top surface of the upper positioning block. The stopper edge portion 1 increases the connection strength between the upper positioning block and the upper cover shell, making the structure more stable. At the same time, a limiting groove 1 is formed between the stopper edge portion 1, the upper positioning block and the upper cover shell, and the head of the screw assembly is limited in the limiting groove 1, which is convenient for actual installation. The design of the avoidance groove 1 can not only optimize the appearance of the upper cover shell, but also the bottom of the avoidance groove 1 extends all the way to the limiting groove 1 and intersects with the corresponding top surface of the upper positioning block, thereby increasing the space size of the limiting groove 1, thereby facilitating the disassembly and assembly of the bolt assembly.

[0010] Furthermore, a stiffening protrusion 1 is formed on the inner side wall of the upper cover shell, which protrudes inwardly. The stiffening protrusion 1 corresponds to the avoidance groove 1 inside and outside. The structural design is ingenious and reasonable. The design of the stiffening protrusion 1 can enhance the structural strength of the upper cover shell and improve the stability of the entire aluminum shell motor. The stiffening protrusion 1 and the avoidance groove 1 are arranged to correspond to each other inside and outside, making the entire upper cover shell more coordinated and balanced in structure, thereby improving the overall appearance.

[0011] The lockhole that is formed on the upper and lower surfaces of the lockhole has the effect of locking the lockhole on the lockhole, and the locking slit is formed on the lockhole to lock the lockhole.

[0012] Furthermore, a second stiffening protrusion is formed on the inner wall of the lower cover shell, which protrudes inwardly and corresponds one-to-one with the second avoidance groove inside and outside. The design is ingenious and reasonable, and the structure of the lower cover shell is optimized. The design of the second stiffening protrusion can enhance the structural strength and structural firmness of the lower cover shell, and improve the structural stability of the entire aluminum shell motor. The second stiffening protrusion and the second avoidance groove are set one-to-one with each other inside and outside, so that the entire lower cover shell is more coordinated and balanced in structure, thereby improving the aesthetics of the aluminum shell motor.

[0013] Furthermore, reinforcing convex rings are provided on the outer walls of the upper cover shell and the lower cover shell, and the upper positioning block and the lower positioning block are provided on the outer walls of the reinforcing convex rings. The reinforcing convex rings and the upper cover shell and the lower cover shell are integrally formed. The design of the reinforcing convex rings can enhance the structural strength of the upper cover shell and the lower cover shell, making the casing structure more solid and reliable, thereby improving the stability and reliability of the operation of the entire aluminum shell motor.

[0014] Furthermore, a wire threading groove is opened on the lower cover shell, and a wire sleeve is arranged at the wire threading groove. A lead hole is penetrated through the wire sleeve, and the lead wire in the aluminum shell motor is guided to pass through the lead hole. The structural design is ingenious and reasonable. The wire sleeve cooperates with the wire threading groove to make the wire laying more flexible and convenient. The design of the wire threading groove can guide the lead wire inside the aluminum shell motor to pass out in an orderly and neat manner, which is convenient for the installation and maintenance of the wires. The design of the wire sleeve can further guide and protect the wires, fix the passing-out end of the wire, reduce the wear of the wire during the passing-out process, and improve safety.

[0015] When the lead sleeve is inserted and positioned in the threading groove, the side extension parts just extend and block the outer wall of the lower cover shell, further enhancing the plug-in fixing effect between the lead sleeve and the lower cover shell, and also playing a dustproof and waterproof role.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The utility model has an ingenious and reasonable structural design and strong practicality. The casing is designed to be a detachable upper cover shell and a lower cover shell, which can facilitate the inspection and maintenance of the internal parts of the motor. The structural strength of the upper cover shell and the lower cover shell can be respectively enhanced by the convex part one and the convex part two, so that the motor as a whole is more stable. At the same time, internal threaded holes are arranged on the convex part one and the convex part two. The design of the internal threaded holes can facilitate the subsequent connection and installation between the motor and other equipment. The upper cover shell and the lower cover shell are made of aluminum shell material. The aluminum material is light in weight, so the overall weight of the motor is optimized. The thermal conductivity of aluminum is good, so the heat dissipation of the motor is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of an aluminum housing motor of the utility model;

[0020] Figure 2 It is a schematic diagram of the installation structure between the wire sleeve and the lower cover shell in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the lower cover shell in the utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;

[0023] Figure 5 This is a schematic diagram of the structure of the wire sleeve of the utility model;

[0024] Figure 6 for Figure 5 A schematic diagram of the structure from another perspective;

[0025] Figure 7 It is a structural schematic diagram of the upper cover shell in the utility model;

[0026] Figure 8 for Figure 7 Schematic diagram of the structure from another perspective.

[0027] In the figure: 1- housing; 2- motor shaft; 3- upper cover shell; 4- lower cover shell; 5- protrusion one; 6- protrusion two; 7- internal threaded hole; 8- arc chamfer; 9- upper positioning block; 10- upper through hole; 11- lower positioning block; 12- lower through hole; 13- bolt assembly; 14- stop edge one; 15- limiting groove one; 16- avoidance groove one; 17- reinforcing protrusion one; 18- stop edge two; 19- limiting groove two; 20- avoidance groove two; 21- reinforcing protrusion two; 22- reinforcing convex ring; 23- threading groove; 24- wire sleeve; 25- lead hole; 26- positioning part; 27- wire part; 28- positioning piece one; 29- positioning piece two; 30- slot; 31- side extension. DETAILED DESCRIPTION

[0028] like Figures 1 to 8As shown, an aluminum shell motor of the utility model comprises a housing 1 and a motor shaft 2, the housing 1 comprises an upper cover shell 3 and a lower cover shell 4, the upper cover shell 3 and the lower cover shell 4 are detachably mounted; a convex portion 1 5 is protruded outwardly on the upper cover shell 3, and the convex portion 1 5 is evenly distributed along the circumference of the top side wall of the upper cover shell 3, and a convex portion 2 6 is protruded outwardly on the lower cover shell 4, and the convex portion 2 6 is evenly distributed along the circumference of the bottom end surface of the lower cover shell 4, and an internal threaded hole 7 is penetrated on the convex portion 1 5 and the convex portion 2 6; the housing 1 is designed to be detachable in two parts, the upper cover shell 3 and the lower cover shell 4, so that the internal parts of the motor can be easily accessed. The inspection and maintenance of the parts, the structural strength of the upper cover shell 3 and the lower cover shell 4 can be enhanced respectively through the convex part 1 5 and the convex part 2 6, so that the motor as a whole is more stable. At the same time, the convex part 1 5 and the convex part 2 6 are provided with internal threaded holes 7. The design of the internal threaded holes 7 can facilitate the subsequent connection and installation between the motor and other equipment. Moreover, the convex part 1 5 and the convex part 2 5 are evenly distributed along the circumference to ensure the balance and stability of the casing structure. The upper cover shell 3 and the lower cover shell 4 are made of aluminum shell material. The aluminum material is light in weight, so that the overall weight of the motor is optimized, and the thermal conductivity of aluminum is good, so that the heat dissipation of the motor is good. In addition, the internal threaded holes 7 are provided at the upper cover shell 3 and the lower cover shell 4, and the appropriate installation point can be selected according to the actual installation requirements, and the internal threaded holes 7 that are not installed can be used as auxiliary heat dissipation holes to increase the heat dissipation performance of the entire motor.

[0029] An upper positioning block 9 is provided on the outer wall of the upper cover shell 3, and an upper through hole 10 is provided on the upper positioning block 9. A lower positioning block 11 is provided on the outer wall of the lower cover shell 4, and a lower through hole 12 is provided on the lower positioning block 11. The lower through hole 12 corresponds to the upper through hole 10 one by one, and a bolt assembly 13 is connected between the corresponding lower through hole 12 and the upper through hole 10, and the upper cover shell 3 and the lower cover shell 4 are connected and fixed by the bolt assembly 13; the structural design is ingenious and reasonable, through the setting of the upper positioning block 9 and the lower positioning block 11, and the upper through hole 10 is opened on the upper positioning block 9, and the lower through hole 12 is opened on the lower positioning block 11, and the bolt assembly 13 is cooperated to realize the precise assembly and positioning of the casing 1, and the bolt connection can ensure the connection firmness and reliability between the upper cover shell 3 and the lower cover shell 4, increase the overall stability and safety of the motor, and it is easy to disassemble and assemble, which can facilitate the subsequent maintenance and repair of the aluminum shell motor. Reinforcing convex rings 22 are provided on the outer walls of the upper cover shell 3 and the lower cover shell 4. The upper positioning block 9 and the lower positioning block 11 are provided on the outer walls of the reinforcing convex rings 22. The reinforcing convex rings 22 are integrally formed with the upper cover shell 3 and the lower cover shell 4. The design of the reinforcing convex rings 22 can enhance the structural strength of the upper cover shell 3 and the lower cover shell 4, making the structure of the casing 1 more solid and reliable, thereby improving the stability and reliability of the operation of the entire aluminum shell motor.

[0030] The connection between the convex part 1 5 and the upper cover shell 3, and the connection between the convex part 2 6 and the lower cover shell 4 are both connected by a transition arc chamfer 8. The design of the circular arc chamfer 8 makes the connection between the convex part 1 5 and the upper cover shell 3, and between the convex part 2 6 and the lower cover shell 4 smoother, reduces stress concentration at the connection, improves the overall structural strength, and makes the appearance of the aluminum shell motor more beautiful. The connection between the upper positioning block 9 and the upper cover shell 3, and the connection between the lower positioning block 11 and the lower cover shell 4 are also designed with a transition arc chamfer 8. At the same time, the corners of the upper positioning block 9 and the lower positioning block 11 are both provided with circular arc chamfers 8, which enhances the structural strength of the connection parts, and makes the overall appearance design more rounded and beautiful. Reducing sharp corners can also improve the operational safety during the motor assembly process.

[0031] The top surface of the upper positioning block 9 is symmetrically provided with a stopper 14, which is connected between the upper positioning block 9 and the upper cover shell 3. A limit groove 15 connected to the upper through hole 10 is formed between the stopper 14, the upper positioning block 9 and the upper cover shell 3. The outer wall of the upper cover shell 3 is recessed inward to form an avoidance groove 16, which corresponds to the upper positioning block 9 one by one. The bottom of the avoidance groove 16 extends into the limit groove 15 and intersects with the corresponding top surface of the upper positioning block 9. The stopper 14 increases the upper positioning block 9 and The connection strength between the upper cover shell 3 makes the structure more stable. At the same time, a limiting groove 15 is formed between the retaining edge 14 and the upper positioning block 9 and the upper cover shell 3. The head of the screw assembly is limited in the limiting groove 15, which is convenient for actual installation. The design of the avoidance groove 16 can not only optimize the appearance of the upper cover shell 3, but also the bottom of the avoidance groove 16 extends all the way to the limiting groove 15 and intersects with the corresponding top surface of the upper positioning block 9, thereby increasing the space size of the limiting groove 15, thereby making it easier to disassemble and assemble the bolt assembly 13. The inner wall of the upper cover shell 3 is bulged inward to form a stiffening protrusion 17, and the stiffening protrusion 17 corresponds to the avoidance groove 16 inside and outside. The structural design is ingenious and reasonable. The design of the stiffening protrusion 17 can enhance the structural strength of the upper cover shell 3 and improve the stability of the entire aluminum shell motor. The stiffening protrusion 17 and the avoidance groove 16 are arranged in a one-to-one correspondence inside and outside, so that the entire upper cover shell 3 is more coordinated and balanced in structure, and the overall appearance is improved.

[0032] The bottom surface of the lower positioning block 11 is symmetrically provided with a stop edge portion 18, which is connected between the lower positioning block 11 and the lower cover shell 4. A limit groove 19 connected to the lower through hole 12 is formed between the stop edge portion 18, the lower positioning block 11, and the lower cover shell 4. The outer wall of the lower cover shell 4 is recessed inward to form an avoidance groove 20, which corresponds to the lower positioning block 11 one by one. The top of the avoidance groove 20 extends into the avoidance groove 20 and intersects with the bottom surface of the corresponding lower positioning block 11; the stop edge portion 14 increases the space between the upper positioning block 9 and the upper cover shell 3 The connection strength makes the structure more stable. At the same time, a limiting groove 19 is formed between the second retaining edge 18 and the lower positioning block 11 and the lower cover shell 4. The tail and the nut of the screw assembly are just limited in the limiting groove 19, which is convenient for actual installation. The design of the avoidance groove 20 can not only optimize the appearance of the lower cover shell 4, but also the top of the avoidance groove 20 extends all the way to the limiting groove 19 and intersects with the bottom surface of the corresponding lower positioning block 11, thereby increasing the space size of the limiting groove 19 and cooperating with the avoidance groove 16, which is more convenient for the actual disassembly and assembly of the bolt assembly 13. The inner wall of the lower cover shell 4 is bulged inward to form a stiffening protrusion 21, and the stiffening protrusion 21 corresponds to the avoidance groove 20 inside and outside. The design is ingenious and reasonable, and the structure of the lower cover shell 4 is optimized. The design of the stiffening protrusion 21 can enhance the structural strength and structural firmness of the lower cover shell 4, and improve the structural stability of the entire aluminum shell motor. The stiffening protrusion 21 and the avoidance groove 20 are set in a one-to-one correspondence inside and outside, so that the entire lower cover shell 4 is more coordinated and balanced in structure, thereby improving the aesthetics of the aluminum shell motor.

[0033] A wire threading groove 23 is provided on the lower cover shell 4, and a wire sleeve 24 is provided at the wire threading groove 23. A lead hole 25 is penetrated on the wire sleeve 24, and the lead hole 25 is used to guide the lead wires in the aluminum shell motor to pass through. The structural design is ingenious and reasonable. The wire sleeve 24 cooperates with the wire threading groove 23 to make the wire laying more flexible and convenient. The design of the wire threading groove 23 can guide the lead wires inside the aluminum shell motor to pass out in an orderly and neat manner, which is convenient for the installation and maintenance of the wires. The design of the wire sleeve 24 can further guide and protect the wires, fix the passing-out ends of the wires, reduce the wear of the wires during the passing-out process, and improve safety.

[0034] The wire sleeve 24 includes a positioning portion 26 and a wire portion 27 of an integrally formed structure. The positioning portion 26 is provided with a positioning piece 1 28 and a positioning piece 29. A slot 30 is formed between the positioning piece 1 28 and the positioning piece 29. The positioning portion 26 is inserted into the threading groove 23 through the slot 30. Both sides of the positioning piece 1 28 are provided with side extensions 31. When the positioning portion 26 is inserted into the threading groove 23, the top of the positioning portion 26 is flush with the top of the lower cover shell 4, and the side extensions 31 extend and block the outer side wall of the lower cover shell 4. The positioning portion 26 and the wire portion 27 are integrally formed, which can ensure the structural strength of the wire sleeve 24 and facilitate actual processing and molding. The positioning portion 26 is provided with a positioning piece 1 28 and a positioning piece 29. The second piece 29 forms a slot 30 therebetween, and the slot 30 matches the wire threading groove 23, so that the positioning portion 26 can be firmly plugged into the wire threading groove 23, and the plug-in installation is quick and convenient, and it is also convenient for subsequent maintenance and replacement. When the wire sleeve 24 is plugged and positioned in the wire threading groove 23, the side extension portion 31 just extends to cover the outer wall of the lower cover shell, further enhancing the plug-in and fixing effect between the wire sleeve 24 and the lower cover shell, and can also play a dustproof and waterproof role. When plugged into place, the top of the positioning portion 26 is flush with the top of the lower cover shell 4, ensuring the flatness of the top surface of the lower cover shell 4, and will not hinder the assembly and fixation between the upper cover shell 3 and the lower cover shell 4, thereby improving the tightness and reliability of the upper cover body 3 and the lower cover shell 4 after assembly.

[0035] The utility model has an ingenious and reasonable structural design and strong practicality. The casing 1 is designed to be a detachable upper cover shell 3 and a lower cover shell 4, which can facilitate the inspection and maintenance of the internal parts of the motor. The structural strength of the upper cover shell 3 and the lower cover shell 4 can be respectively enhanced by the convex part 1 5 and the convex part 2 6, so that the motor as a whole is more stable. At the same time, the convex part 1 5 and the convex part 2 6 are provided with internal threaded holes 7. The design of the internal threaded holes 7 can facilitate the subsequent connection and installation between the motor and other equipment. The upper cover shell 3 and the lower cover shell 4 are made of aluminum shell material. The aluminum material is light in weight, so the overall weight of the motor is optimized. In addition, the thermal conductivity of aluminum is good, so the heat dissipation of the motor is good.

[0036] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An aluminum housing motor, comprising a housing and a motor shaft; Features: The housing comprises an upper cover shell and a lower cover shell, and the upper cover shell and the lower cover shell are detachably mounted; The upper cover shell is provided with a convex portion 1 protruding outward, and the convex portion 1 is evenly distributed along the circumference of the top side wall of the upper cover shell. The lower cover shell is provided with a convex portion 2 protruding outward, and the convex portion 2 is evenly distributed along the circumference of the bottom end surface of the lower cover shell. Both the convex portion 1 and the convex portion 2 are penetrated by internal threaded holes.

2. The aluminum housing motor according to claim 1, characterized in that: The connection point between the first protrusion and the upper cover shell, and the connection point between the second protrusion and the lower cover shell are both connected through arc chamfer transition.

3. The aluminum housing motor according to claim 1, characterized in that: An upper positioning block is arranged on the outer wall of the upper cover shell, and an upper through hole is arranged on the upper positioning block. A lower positioning block is arranged on the outer wall of the lower cover shell, and a lower through hole is arranged on the lower positioning block. The lower through holes are matched with the upper through holes one by one, and bolt assemblies are connected between the corresponding lower through holes and the upper through holes, and the upper cover shell and the lower cover shell are connected and fixed by the bolt assemblies.

4. The aluminum housing motor according to claim 3, characterized in that: A stop edge portion 1 is symmetrically provided on the top surface of the upper positioning block, and the stop edge portion 1 is connected between the upper positioning block and the upper cover shell. A limiting groove 1 connected to the upper through hole is formed between the stop edge portion 1, the upper positioning block and the upper cover shell. An avoidance groove 1 is formed on the outer side wall of the upper cover shell, which is recessed inwardly. The avoidance groove 1 corresponds to the upper positioning block one by one, and the bottom of the avoidance groove 1 extends into the limiting groove 1 and intersects and connects with the corresponding top surface of the upper positioning block.

5. The aluminum housing motor according to claim 4, characterized in that: The inner side wall of the upper cover shell is protruded inwardly to form a stiffening protrusion 1, and the stiffening protrusion 1 corresponds to the avoidance groove 1 inside and outside in a one-to-one manner.

6. The aluminum housing motor according to claim 3, characterized in that: A second stop edge portion is symmetrically arranged on the bottom surface of the lower positioning block, and the second stop edge portion is connected between the lower positioning block and the lower cover shell. A second limiting groove connected to the lower through hole is formed between the second stop edge portion, the lower positioning block and the lower cover shell. A second avoidance groove is formed on the outer side wall of the lower cover shell, which is recessed inward. The second avoidance groove corresponds to the lower positioning block one by one, and the top of the second avoidance groove extends into the second avoidance groove and intersects with the corresponding bottom surface of the lower positioning block.

7. The aluminum housing motor according to claim 6, characterized in that: The inner side wall of the lower cover shell is protruded inwardly to form a second stiffening protrusion, and the second stiffening protrusion corresponds to the inside and outside of the second avoidance groove one by one.

8. The aluminum housing motor according to claim 3, characterized in that: The outer side walls of the upper cover shell and the lower cover shell are both provided with reinforcement convex rings, and the upper positioning block and the lower positioning block are arranged on the outer side walls of the reinforcement convex rings.

9. The aluminum housing motor according to claim 1, characterized in that: The lower cover shell is provided with a threading groove, a wire sleeve is arranged at the threading groove, a lead hole is penetrated through the wire sleeve, and the lead wire in the aluminum shell motor is guided to pass out through the lead hole.

10. The aluminum housing motor according to claim 9, characterized in that: The wire sleeve comprises a positioning part and a wire part of an integrally formed structure, the positioning part is provided with a first positioning piece and a second positioning piece, a slot is formed between the first positioning piece and the second positioning piece, the positioning part is plugged into the threading groove through the slot, and side extension parts are provided on both sides of the first positioning piece; When the positioning portion is inserted into the threading groove and in place, the top end of the positioning portion is flush with the top end of the lower cover shell, and the side extension portion extends to cover the outer side wall of the lower cover shell.

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