Low-noise automobile motor shell structure convenient to install and manufacturing method thereof

Abstract

The invention relates to the technical field of motor shell structures, in particular to a low-noise automobile motor shell structure convenient to install and a manufacturing method thereof.The low-noise automobile motor shell structure convenient to install comprises a connecting block, a connecting hole is formed in the connecting block, a first shell is arranged on the upper surface of the connecting block, and a second shell is arranged on the back face of the first shell; cavities are formed in the first shell and the second shell, first sound insulation pads are installed in the cavities, and magnets are installed on the front surfaces of the first sound insulation pads; and the second sound insulation pad is installed in the first shell, and an iron block is arranged on the back face of the second sound insulation pad. The rotating shaft outlet of the motor can be limited through the outlet ring and the outlet groove, so that the first shell and the second shell can be quickly mounted, the mounted first shell and second shell can be immediately limited and fixed after mounting, and meanwhile, the internal motor can be subjected to sound insulation.

Description

Technical Field

[0001] The invention relates to the technical field of motor housing structures, and in particular to a low-noise automobile motor housing structure which is easy to install and a manufacturing method thereof. Background Art

[0002] The car motor converts the battery's electrical energy into mechanical energy, driving the engine flywheel to start the engine. Before the car motor can run, it needs to be rotated by external force. The car motor needs to be installed in the motor housing before it can be installed inside the car for use.

[0003] In this regard, China's patent application number: CN209488303U discloses a low-noise automobile motor housing that is easy to install, including a left housing and a right housing, the two ends of the left housing are fixedly connected with a left connecting block, the two ends of the right housing are fixedly connected with a right connecting block, the left connecting hole and the right connecting hole are movably connected through a locking nut, the L-shaped card slot is movably connected with an L-shaped card block inside, the L-shaped card block is fixed to the side of the right housing connection port, the left housing and the right housing are fixedly connected with a sound insulation board and a protective film from the outside to the inside, the left housing and the right housing are provided with heat dissipation holes on the sides of the top ends, the left housing and the right housing are provided with a rotating shaft outlet on the top ends, the left housing and the right housing are fixedly connected with a lower connecting block at the lower ends, and the side of the lower connecting block is provided with a lower connecting hole. This low-noise automobile motor housing that is easy to install reduces the noise pollution when the motor is running, and is convenient for repairing, maintaining and cleaning the motor.

[0004] However, in actual use, sound insulation can only be performed through sound insulation boards, and the sound insulation boards are installed inside the overall outer shell. The overall sound insulation effect is poor, and the entire motor cannot be wrapped for sound insulation. At the same time, the overall effect of the motor housing is poor during installation, and the outer shell cannot be quickly disassembled and assembled, which is extremely inconvenient during installation. There are many operating steps during installation, and the overall installation has certain limitations. Therefore, it has become an urgent problem to be solved for us to improve and perfect the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a low-noise automobile motor housing structure that is easy to install and a manufacturing method thereof, so as to solve the problem proposed in the above-mentioned background technology that sound insulation can only be performed by a sound insulation board, and the sound insulation board is installed inside the overall outer shell, the overall sound insulation effect is poor, and the overall motor cannot be wrapped for sound insulation. At the same time, the overall effect of the motor housing is poor during installation, the outer shell cannot be quickly disassembled and assembled, the installation is extremely inconvenient, and there are many operating steps during installation, and the overall installation has certain limitations.

[0006] To achieve the above object, the present invention provides the following technical solution: a low-noise automobile motor housing structure that is easy to install, comprising a connecting block, a connecting hole is provided inside the connecting block, a first housing is provided on the upper surface of the connecting block, a second housing is provided on the back of the first housing, a cavity is provided inside the first housing and the second housing, a first sound insulation pad is installed inside the cavity, and a magnet is installed on the front surface of the first sound insulation pad;

[0007] A second sound insulation pad, the second sound insulation pad is installed inside the first shell, an iron block is arranged on the back of the second sound insulation pad, the iron block and the magnet are magnetically attracted to each other, a top cover is arranged on the upper surface of the first shell and the second shell, a fastening ring is arranged on the outer surface of the top cover, a connecting column is installed at the lower end of the fastening ring, a first fixing ring is installed at the lower end of the connecting column, a connecting plate is installed on the lower surface of the first fixing ring, and a second fixing ring is installed on the lower surface of the connecting plate.

[0008] Preferably, the back surfaces of the first fixing ring and the second fixing ring both fit in contact with the outer surface of the first shell, and a first limiting ring is installed on the outer surface of the second shell.

[0009] Preferably, a locking groove is provided inside the first limiting ring, and the locking groove and the first fixing ring are adapted to each other.

[0010] Preferably, a second limiting ring is installed on one side of the surface of the second shell, and the second limiting ring and the second fixing ring are adapted to each other.

[0011] Preferably, a sound insulation ring is installed on the top surface of the inner wall of the top cover, and a through groove is opened inside the sound insulation ring.

[0012] Preferably, a threaded ring is installed on the inner side wall of the top cover, and an outer surface of the threaded ring is provided with an adapting thread.

[0013] Preferably, a positioning block is installed on the front surface of the fastening ring, and an interference block is installed on the back surface of the positioning block.

[0014] Preferably, a resistance ball is installed inside the back side of the resistance block, and two groups of the resistance balls are provided, and the two groups of the resistance balls respectively resist the outer surfaces of the first fixing ring and the second fixing ring.

[0015] Preferably, an outlet ring is installed on the top surface of the top cover, an outlet groove is provided inside the outlet ring, and the outlet groove and the through groove are matched with each other.

[0016] A method for manufacturing a low-noise automobile motor housing structure that is easy to install:

[0017] S1. Design a three-dimensional model of the motor housing using computer-aided design software;

[0018] S2. Select appropriate metal powder materials, such as aluminum alloy, titanium alloy, etc., for the subsequent printing process, use metal powder 3D printing technology, such as selective laser melting or electron beam melting, to stack the metal powder layer by layer, spray UV adhesive binder through a digital micro-spray nozzle, and solidify the metal powder layer by layer to form the preliminary structure of the motor housing;

[0019] S3. Perform high temperature sintering and machining operations on the motor housing;

[0020] S4. Assemble the printed and processed motor housing with other parts, perform noise test and performance test on the assembled motor, and complete the manufacturing after the test results are qualified.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The low-noise automobile motor housing structure that is easy to install and the manufacturing method thereof, by setting a first housing, a second housing, a cavity, a first sound insulation pad, a magnet, a second sound insulation pad, an iron block, a top cover, a fastening ring, a connecting column, a first fixing ring, a connecting plate, a second fixing ring, a first limiting ring and a locking groove, during installation, first assemble the first housing and the second housing, then the iron block will be magnetically attracted to each other by the magnet, so that the second sound insulation pad and the first sound insulation pad will be connected to each other as a whole, and the design of the first sound insulation pad and the second sound insulation pad can perform sound insulation operation, and the second sound insulation pad and the first sound insulation pad are installed in an integrated manner through the installation of the first housing and the second housing, so that the overall sound insulation effect is better, after the first housing and the second housing are installed, the motor is placed inside the first housing and the second housing, and then the top cover is placed on the upper surface of the first housing and the second housing, at this time, the fastening ring will fit the outer surface of the first housing and the second housing, and at the same time, the fastening ring will also drive the first fixing ring and the second fixing ring to fit the outer surface of the first housing, and then The top cover and the fastening ring are rotated, so that the fastening ring will slowly fit and fix with the first shell, the first fixing ring is fixedly connected by the connecting column, and then the second fixing ring is fixedly connected by the connecting plate, when the fastening ring rotates, the first fixing ring will be inserted into the interior of the locking groove, so that the first fixing ring is installed in the interior of the first limiting ring, and the second fixing ring will also be inserted into the interior of the second limiting ring, the overall installation effect is relatively stable, so the first fixing ring and the second fixing ring can be stably inserted in the interior of the first limiting ring and the second limiting ring, through the design of the first fixing ring and the first limiting ring, the first shell and the second shell after installation can be fixed and limited as a whole, similarly, the second fixing ring and the second limiting ring can also perform the above operation, at the same time, the upper end outer surfaces of the first shell and the second shell are fixed and limited by the fastening ring, the above operation is relatively simple, and the installation speed is relatively fast, the first shell and the second shell can be limited and fixed after the first shell and the second shell are installed, reflecting the functionality of the design.

[0023] 2. The low-noise automobile motor housing structure that is easy to install and the manufacturing method thereof, through the sound insulation ring, through groove, threaded ring, adapting thread, positioning block, abutment block, abutment ball, outlet ring and outlet groove, when the top cover and the fastening ring are rotating, the threaded ring on the inner wall of the top cover will also rotate, and the threaded ring is adapted to the inner walls of the first shell and the second shell through the adapting thread, so that the threaded ring can be installed as a whole inside the first shell and the second shell, so that the first shell, the second shell and the top cover are in a relatively sealed state, and at the same time, the noise can be reduced again through the design of the sound insulation ring and the through groove, so that the motor inside the first shell and the second shell can be protected by the sealed first sound insulation pad and the second sound insulation pad and the sound insulation ring on the top surface of the top cover. The whole is soundproofed, so that the overall sound insulation effect is good. At the same time, when the fastening ring rotates, the positioning block and the resistance block will also be driven to rotate. At this time, the resistance ball on the back of the resistance block will fit the front surfaces of the first fixing ring and the second fixing ring, and a certain pressure can be applied to the first fixing ring and the second fixing ring, so that the first fixing ring and the second fixing ring are more closely fitted to the outer surface of the first shell, so that the subsequent first fixing ring is more stable when inserted inside the first limiting ring. The motor shaft outlet can be limited by the outlet ring and the outlet groove. Therefore, the design can quickly install the first shell and the second shell, and after installation, the installed first shell and the second shell can be limited and fixed immediately, and the internal motor can also be soundproofed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the disassembly of the top cover and the fastening ring structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the disassembly of the top cover and the first shell structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the disassembly of the first shell and the second shell structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the disassembly of the first sound insulation pad and the second sound insulation pad structure of the present invention;

[0029] Figure 6 It is a three-dimensional schematic diagram of the first shell and the second shell structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the disassembly of the top cover and the threaded ring structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the disassembly of the positioning block and the abutting rolling ball structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the disassembly of the first fixing ring and the first limiting ring structure of the present invention.

[0033] In the figure: 1. connecting block; 2. connecting hole; 3. first shell; 4. second shell; 5. cavity; 6. first sound insulation pad; 7. magnet; 8. second sound insulation pad; 9. iron block; 10. top cover; 11. fastening ring; 12. connecting column; 13. first fixing ring; 14. connecting plate; 15. second fixing ring; 16. first limiting ring; 17. locking groove; 18. sound insulation ring; 19. through groove; 20. threaded ring; 21. adapter thread; 22. positioning block; 23. interference block; 24. interference ball; 25. outlet ring; 26. outlet groove; 27. second limiting ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 9 , an embodiment provided by the present invention:

[0036] A low-noise automobile motor housing structure that is easy to install. The first sound insulation pad 6, the second sound insulation pad 8, the sound insulation ring 18 and the abutment ball 24 used in the present application are all products that can be directly purchased on the market. The principles and connection methods thereof are all prior arts well known to those skilled in the art, so they will not be repeated here. The structure comprises a connecting block 1, a connecting hole 2 is provided inside the connecting block 1, a first shell 3 is provided on the upper surface of the connecting block 1, a second shell 4 is provided on the back of the first shell 3, a cavity 5 is provided inside the first shell 3 and the second shell 4, a first sound insulation pad 6 is installed inside the cavity 5, and a front surface of the first sound insulation pad 6 is provided on the front surface of the first sound insulation pad 6. A magnet 7 is installed on the surface, a second limiting ring 27 is installed on one side of the surface of the second shell 4, and the second limiting ring 27 and the second fixing ring 15 are adapted to each other. A sound insulation ring 18 is installed on the top surface of the inner wall of the top cover 10, and a through groove 19 is opened inside the sound insulation ring 18. A threaded ring 20 is installed on the inner side wall of the top cover 10, and an adapting thread 21 is provided on the outer surface of the threaded ring 20. When the top cover 10 and the fastening ring 11 are rotating, the threaded ring 20 on the inner wall of the top cover 10 will also rotate. The threaded ring 20 is adapted to each other with the inner walls of the first shell 3 and the second shell 4 through the adapting thread 21, so that the threaded ring 20 can be installed as a whole. The interior of the first shell 3 and the second shell 4, so the first shell 3, the second shell 4 and the top cover 10 are in a relatively sealed state, and the design of the sound insulation ring 18 and the through groove 19 can reduce noise again, so that the sound insulation of the motor inside the first shell 3 and the second shell 4 can be carried out as a whole through the sealed first sound insulation pad 6 and the second sound insulation pad 8 and the sound insulation ring 18 on the top surface of the top cover 10, so that the overall sound insulation effect is good, and at the same time, when the fastening ring 11 rotates, it will also drive the positioning block 22 and the resistance block 23 to rotate, and at this time, the resistance ball 24 on the back of the resistance block 23 will fit in the first fixing ring 13 and The front surface of the second fixing ring 15 can apply a certain pressure to the first fixing ring 13 and the second fixing ring 15, so that the first fixing ring 13 and the second fixing ring 15 are more closely attached to the outer surface of the first housing 3, so that the first fixing ring 13 is more stable when it is subsequently inserted into the first limiting ring 16. The motor shaft outlet can be limited by the outlet ring 25 and the outlet groove 26. Therefore, the present design can quickly install the first housing 3 and the second housing 4, and after installation, the installed first housing 3 and the second housing 4 can be limited and fixed immediately, and the internal motor can also be soundproofed.

[0037] A second sound insulation pad 8 is installed inside the first shell 3, an iron block 9 is arranged on the back of the second sound insulation pad 8, and the iron block 9 and the magnet 7 are magnetically attracted to each other. A top cover 10 is arranged on the upper surface of the first shell 3 and the second shell 4, and a fastening ring 11 is arranged on the outer surface of the top cover 10. A connecting column 12 is installed on the lower end of the fastening ring 11, and a first fixing ring 13 is installed on the lower end of the connecting column 12. A connecting plate 14 is installed on the lower surface of the first fixing ring 13, and a second fixing ring 15 is installed on the lower surface of the connecting plate 14. The backs of the first fixing ring 13 and the second fixing ring 15 are both in contact with the outer surface of the first shell 3, and a first limiting ring 16 is installed on the outer surface of the second shell 4. A locking groove 17 is provided inside the first limiting ring 16. The locking groove 17 is provided inside the locking groove 17. 7 and the first fixing ring 13 are adapted to each other, a positioning block 22 is installed on the front surface of the fastening ring 11, a resistance block 23 is installed on the back of the positioning block 22, and a resistance ball 24 is installed inside the back of the resistance block 23, and two groups of resistance balls 24 are provided, and the two groups of resistance balls 24 are respectively in resistance to the outer surfaces of the first fixing ring 13 and the second fixing ring 15, and an outlet ring 25 is installed on the top surface of the top cover 10, and an outlet groove 26 is opened inside the outlet ring 25, and the outlet groove 26 and the through groove 19 are adapted to each other. When installing, the first shell 3 and the second shell 4 are first assembled, and then the iron block 9 will be magnetically attracted to the magnet 7, so that the second sound insulation pad 8 and the first sound insulation pad 6 will be connected to each other as a whole, through the first sound insulation pad 6 and the second sound insulation pad The design of the pad 8 can perform sound insulation operation, and the second sound insulation pad 8 and the first sound insulation pad 6 are installed in an integrated manner through the installation of the first shell 3 and the second shell 4, so that the overall sound insulation effect is better. After the first shell 3 and the second shell 4 are installed, the motor is placed inside the first shell 3 and the second shell 4, and then the top cover 10 is placed on the upper surface of the first shell 3 and the second shell 4. At this time, the fastening ring 11 will fit the outer surface of the first shell 3 and the second shell 4, and the fastening ring 11 will also drive the first fixing ring 13 and the second fixing ring 15 to fit the outer surface of the first shell 3, and then the top cover 10 and the fastening ring 11 are rotated, so that the fastening ring 11 will slowly fit and fix with the first shell 3, and the first fixing ring 13 and the second fixing ring 15 will fit with the outer surface of the first shell 3. The fixed ring 13 is fixedly connected, and then the second fixed ring 15 is fixedly connected through the connecting plate 14. When the fastening ring 11 rotates, the first fixed ring 13 will be inserted into the interior of the locking groove 17, so that the first fixed ring 13 is installed in the interior of the first limiting ring 16, and the second fixed ring 15 will also be inserted into the interior of the second limiting ring 27. The overall installation effect is relatively stable. Therefore, the first fixed ring 13 and the second fixed ring 15 can be stably inserted in the first limiting ring 16 and the second limiting ring 27. Through the design of the first fixed ring 13 and the first limiting ring 16, the first shell 3 and the second shell 4 after installation can be fixed and limited as a whole. Similarly, the second fixed ring 15 and the second limiting ring 27 can also perform the above operations.At the same time, the upper outer surfaces of the first shell 3 and the second shell 4 are fixed and limited by the fastening ring 11. The above operation is relatively simple and the installation speed is relatively fast. The first shell 3 and the second shell 4 can be limited and fixed after the first shell 3 and the second shell 4 are installed.

[0038] A method for manufacturing a low-noise automobile motor housing structure that is easy to install:

[0039] S1. Design a three-dimensional model of the motor housing using computer-aided design software;

[0040] S2. Select appropriate metal powder materials, such as aluminum alloy, titanium alloy, etc., for the subsequent printing process, use metal powder 3D printing technology, such as selective laser melting or electron beam melting, to stack the metal powder layer by layer, spray UV adhesive binder through a digital micro-spray nozzle, and solidify the metal powder layer by layer to form the preliminary structure of the motor housing;

[0041] S3. Perform high temperature sintering and machining operations on the motor housing;

[0042] S4. Assemble the printed and processed motor housing with other parts, perform noise test and performance test on the assembled motor, and complete the manufacturing after the test results are qualified.

[0043] Working principle: During installation, first assemble the first shell 3 and the second shell 4, then the iron block 9 will be magnetically attracted to the magnet 7, so that the second sound insulation pad 8 and the first sound insulation pad 6 will be connected to each other as a whole, and the design of the first sound insulation pad 6 and the second sound insulation pad 8 can perform sound insulation operation, and the second sound insulation pad 8 and the first sound insulation pad 6 are installed as a whole through the installation of the first shell 3 and the second shell 4. After the installation of the first shell 3 and the second shell 4 is completed, place the motor inside the first shell 3 and the second shell 4, and then place the top cover 10 on the upper surface of the first shell 3 and the second shell 4. At this time, the fastening ring 11 will fit the outer surface of the first shell 3 and the second shell 4, and at the same time, the fastening ring 11 will also drive the first fixing ring 13 and the second fixing ring 15 to fit the outer surface of the first shell 3, and then rotate the top cover 10 and the fastening ring 11, so that the fastening ring 11 will slowly The first fixing ring 13 is fixedly connected to the first shell 3 by the connecting column 12, and then the second fixing ring 15 is fixedly connected by the connecting plate 14. When the fastening ring 11 rotates, the first fixing ring 13 will be inserted into the interior of the locking groove 17, so that the first fixing ring 13 is installed in the interior of the first limiting ring 16, and the second fixing ring 15 will also be inserted into the interior of the second limiting ring 27. Therefore, the first fixing ring 13 and the second fixing ring 15 can be stably inserted in the interior of the first limiting ring 16 and the second limiting ring 27. The design of the first fixing ring 13 and the first limiting ring 16 can fix and limit the first shell 3 and the second shell 4 as a whole after installation. Similarly, the second fixing ring 15 and the second limiting ring 27 can also perform the above operation. At the same time, the upper end outer surfaces of the first shell 3 and the second shell 4 are fixed and limited by the fastening ring 11;

[0044] When the top cover 10 and the fastening ring 11 are rotating, the threaded ring 20 on the inner wall of the top cover 10 will also rotate. The threaded ring 20 is adapted to the inner walls of the first shell 3 and the second shell 4 through the adapting thread 21, so that the threaded ring 20 can be installed as a whole inside the first shell 3 and the second shell 4. Therefore, the first shell 3, the second shell 4 and the top cover 10 are in a relatively sealed state. At the same time, the design of the sound insulation ring 18 and the through groove 19 can further reduce noise, so that the sound insulation ring 18 on the top surface of the top cover 10 can be used to seal the first sound insulation pad 6 and the second sound insulation pad 8. The whole is soundproofed. At the same time, when the fastening ring 11 rotates, the positioning block 22 and the resistance block 23 are also driven to rotate. At this time, the resistance ball 24 on the back of the resistance block 23 will fit the front surfaces of the first fixing ring 13 and the second fixing ring 15, and a certain pressure can be applied to the first fixing ring 13 and the second fixing ring 15, so that the first fixing ring 13 and the second fixing ring 15 are more fitted to the outer surface of the first shell 3, so that the subsequent first fixing ring 13 is more stable when inserted into the first limiting ring 16, and the motor shaft outlet can be limited by the outlet ring 25 and the outlet groove 26. The above is all the working principles of the present invention.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A low-noise automobile motor housing structure that is easy to install, comprising a connecting block (1), wherein a connecting hole (2) is provided inside the connecting block (1), and characterized in that: A first shell (3) is arranged on the upper surface of the connecting block (1); a second shell (4) is arranged on the back of the first shell (3); a cavity (5) is provided inside the first shell (3) and the second shell (4); a first sound insulation pad (6) is installed inside the cavity (5); a magnet (7) is installed on the front surface of the first sound insulation pad (6); A second sound insulation pad (8), the second sound insulation pad (8) is installed inside the first shell (3), an iron block (9) is arranged on the back of the second sound insulation pad (8), the iron block (9) and the magnet (7) are magnetically attracted to each other, a top cover (10) is arranged on the upper surface of the first shell (3) and the second shell (4), a fastening ring (11) is arranged on the outer surface of the top cover (10), a connecting column (12) is installed at the lower end of the fastening ring (11), a first fixing ring (13) is installed at the lower end of the connecting column (12), a connecting plate (14) is installed on the lower surface of the first fixing ring (13), and a second fixing ring (15) is installed on the lower surface of the connecting plate (14).

2. The low-noise automobile motor housing structure that is easy to install according to claim 1 is characterized in that: The back surfaces of the first fixing ring (13) and the second fixing ring (15) are both in contact with the outer surface of the first shell (3), and the outer surface of the second shell (4) is provided with a first limiting ring (16).

3. The low-noise automobile motor housing structure that is easy to install according to claim 2 is characterized in that: A locking groove (17) is provided inside the first limiting ring (16), and the locking groove (17) and the first fixing ring (13) are adapted to each other.

4. The low-noise automobile motor housing structure that is easy to install according to claim 1 is characterized in that: A second limiting ring (27) is installed on one side of the surface of the second shell (4), and the second limiting ring (27) and the second fixing ring (15) are adapted to each other.

5. The low-noise automobile motor housing structure that is easy to install according to claim 1 is characterized in that: A sound insulation ring (18) is installed on the top surface of the inner wall of the top cover (10), and a through groove (19) is provided inside the sound insulation ring (18).

6. The low-noise automobile motor housing structure that is easy to install according to claim 1 is characterized in that: A threaded ring (20) is installed on the inner side wall of the top cover (10), and an outer surface of the threaded ring (20) is provided with an adapting thread (21).

7. The low-noise automobile motor housing structure that is easy to install according to claim 1 is characterized in that: A positioning block (22) is installed on the front surface of the fastening ring (11), and a resisting block (23) is installed on the back surface of the positioning block (22).

8. The low-noise automobile motor housing structure that is easy to install according to claim 7 is characterized in that: A resisting ball (24) is installed inside the back of the resisting block (23). Two groups of the resisting balls (24) are provided. The two groups of the resisting balls (24) resist against the outer surfaces of the first fixing ring (13) and the second fixing ring (15) respectively.

9. The low-noise automobile motor housing structure that is easy to install according to claim 1 is characterized in that: An outlet ring (25) is installed on the top surface of the top cover (10), an outlet groove (26) is provided inside the outlet ring (25), and the outlet groove (26) and the through groove (19) are adapted to each other.

10. A method for manufacturing a low-noise automobile motor housing structure that is easy to install according to claims 1-9, characterized in that: S1. Design a three-dimensional model of the motor housing using computer-aided design software; S2. Select appropriate metal powder materials, such as aluminum alloy, titanium alloy, etc., for the subsequent printing process, use metal powder 3D printing technology, such as selective laser melting or electron beam melting, to stack the metal powder layer by layer, spray UV adhesive binder through a digital micro-spray nozzle, and solidify the metal powder layer by layer to form the preliminary structure of the motor housing; S3. Perform high temperature sintering and machining operations on the motor housing; S4. Assemble the printed and processed motor housing with other parts, perform noise test and performance test on the assembled motor, and complete the manufacturing after the test results are qualified.

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