Modularized motor with derivable functions

Abstract

The invention belongs to the technical field of motors, and particularly relates to a modular motor with derivable functions, comprising: a stator module comprising a punching sheet unit, a connecting structure and a coil, and a first through area distributed on the punching sheet unit; the rotor module comprises a rotating shaft, a rotor iron core and a rotor electrical accessory; the front end cover module and the rear end cover module provide bearing mounting chambers for the two ends of the rotating shaft respectively, and second through areas are distributed on the front end cover module and the rear end cover module; the motor function is adjusted through the change of at least one of the electromagnetic scheme of the coil, the insulation and glue pouring process of the coil, the groove type of the rotor iron core, the structure of the rotor electrical accessory, the size of the rotating shaft and the bearing installation chamber, and the application mode of the communication channel. According to the invention, each module can be designed into various interchangeable specifications with different functions to adapt to different application scenes, and the effect of deriving multiple sub-products from one motor can be realized by matching and interchanging the different specifications of the modules, so that the effects of wide application range, energy conservation, high efficiency and convenience in management and maintenance are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a modular motor with derivable functions. Background Art

[0002] With the development of modern industry, the application scenarios of motors are increasing, and the requirements are getting higher and higher. The requirements for electrical performance, installation methods, protection levels, cooling methods, etc. are different. This has resulted in the need to design tens of thousands of motor products to meet the needs. The above situation not only causes a waste of resources, but also low efficiency, complex production, and is not conducive to maintenance and management.

[0003] In order to solve the above problems, relevant technicians have tried to adopt the method of modularizing the motor, and obtain motor products that meet various functional requirements through the selection and assembly of different modules. Based on this design concept, how to provide a specific basic structure form so that the modules can obtain the basic structure form after being assembled through different selection methods, and the electrical performance, protection level, and cooling method of the basic structure form can be stably and reliably adjusted has become a technical problem that technicians in this field need to solve. Summary of the invention

[0004] The present invention provides a modular motor with derivable functions, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution of the present invention is as follows: A modular motor with derivable functions, comprising: The stator module comprises a sheet unit having a plurality of sheets and a connection structure, wherein the connection structure connects the plurality of sheets into a whole, and a coil package having a plurality of coils, wherein the coils are embedded in the sheet unit, and the sheet unit is provided with a plurality of first through-areas arranged along the axial direction of the motor; The rotor module comprises a rotating shaft, a rotor core sleeved on the outer periphery of the rotating shaft, and rotor electrical accessories; The front cover module and the rear cover module are respectively positioned and connected with the two ends of the stator module through the connection structure, respectively provide bearing installation chambers for the two ends of the rotating shaft, and are distributed with second through-areas corresponding to the first through-areas one by one to form a connecting channel; The motor function is adjusted by changing at least one of the electromagnetic scheme of the coil, the insulation and glue filling process of the coil package, the slot type of the rotor core, the structure of the rotor electrical accessories, the size of the shaft and bearing installation room, and the application method of the connecting channel.

[0006] Furthermore, it also includes a fan module, which is fixedly connected with the rear end cover module to form a fan assembly installation chamber, and the fan assembly installation chamber is connected to the outside of the motor through the connecting channel.

[0007] Furthermore, the connection structure includes a plurality of tie rods and two end plate structures, the tie rods penetrate through the plurality of stacked punches, each of the end plate structures is fixedly connected to one end of the plurality of tie rods, and the two end plate structures restrict the positions of the tie rods relative to the punches at both ends to form a whole; The end plate structure provides a positioning structure for the front end cover module and the rear end cover module, and the pull rod provides a threaded hole for fixing the front end cover module and the rear end cover module.

[0008] Further, the front end cover module includes a barrel portion having a recessed area, and a fixing structure extending relative to an open end of the barrel portion; The recessed area provides the bearing installation chamber, and a shaft through hole is provided at the bottom, and the fixing structure provides the second through area and the connector installation hole.

[0009] Further, the front end cover module is formed by a casting process; The casting mold includes a movable mold part, and by adjusting the position of the movable mold, one of the following structures can be obtained: A front end cover module including a barrel portion and a fixing structure; A front end cover module including a barrel portion and a fixing structure, and having a mounting flange extending relative to the bottom of the barrel portion; A front end cover module including a barrel portion and a fixing structure, and having a mounting foot extending relative to the fixing structure; The invention comprises a cylinder part and a fixing structure, a mounting flange is led out relative to the bottom of the cylinder part, and a front end cover module is led out relative to the fixing structure for mounting feet.

[0010] Further, the rear end cover module includes a barrel portion having a recessed area, a shell portion sleeved on the outer periphery of the barrel portion, and a connecting portion connecting the barrel portion and the shell portion and dividing the area between the barrel portion and the shell portion into the second through area; The recessed area provides the bearing mounting chamber, and the housing portion provides a connector mounting hole.

[0011] Furthermore, a local structure of the fan assembly is installed on the outer side of the bottom of the recessed area.

[0012] Further, the fan module includes a housing fixedly connected to the rear end cover module; The housing includes airflow redirecting side walls corresponding to the communication channels one by one, and a plurality of connecting side walls connecting two adjacent airflow redirecting side walls; A convex structure is arranged on the inner side of the airflow redirecting side wall, and during the rotation of the airflow inside the shell, the airflow direction is changed by blocking by the convex structure.

[0013] Furthermore, a depression having the same contour as the convex structure is formed on the outer side of the airflow redirecting side wall, or a smooth surface is formed.

[0014] Furthermore, the housing further comprises a bottom surface connected to each side wall, and a mesh cover installed relative to the bottom surface; The bottom surface is provided with a hollow area, the connection of the hollow area is in a spiral shape diverging from the center, and the mesh cover blocks the hollow area.

[0015] The technical solution of the present invention can achieve the following technical effects: The stable basic structural form obtained based on the connection structure and the front cover module and the rear cover module in the present invention can adapt to different application scenarios by designing each module with a variety of interchangeable specifications with different functions. The effect of deriving multiple sub-products from one motor can be achieved by matching and interchangeably using different specifications of modules, thereby achieving a wide range of applications, energy saving, high efficiency, and easy management and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of a modular motor with derivable functions; Figure 2 An exploded diagram of a modular motor with derivable functions; Figure 3 for Figure 1 Schematic diagram of the structure after adding fan module and junction box module; Figure 4 is a structural schematic diagram of a stator module; Figure 5 It is a front view of the front cover module; Figure 6 Optimized schematic diagram after the front cover module is provided with a mounting flange and mounting feet; Figure 7 Optimized schematic diagram after setting ventilation windows for the front cover module; Figure 8 It is a schematic diagram of the structure of the rear end cover module at a first angle; Fig. 9 is a structural schematic diagram of the rear end cover module at a second angle; Fig.10 A schematic diagram of opening a ventilation hole at the bottom of the recessed area of ​​the rear end cover module; Fig.11 It is a schematic diagram of the structure of the housing in the fan module at a first angle; Fig.12 It is a schematic diagram of the structure of the housing in the fan module at a second angle; Reference numerals: 01. stator module; 011. punching unit; 012. connection structure; 0121. tie rod; 0122. end plate structure; 02. rotor module; 021. shaft; 022. rotor core; 023. rotor electrical accessories; 03. front cover module; 031. cylinder part; 0311. shaft through hole; 032. fixing structure; 0321. connector mounting hole; 033. mounting flange; 034. mounting base Foot; 035, ventilation window; 04, rear end cover module; 041, shell part; 042, connection part; 043, positioning hole; 044, wire outlet; 045, ventilation hole; 05, fan module; 051, air flow redirecting side wall; 0511, raised structure; 052, connecting side wall; 053, bottom surface; 054, mesh cover; 061, first through area; 062, second through area; 07, junction box module. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] like Figure 1 and 2 As shown, a modular motor with derivable functions comprises: The stator module 01 comprises a punching unit 011 having a plurality of punching sheets and a connecting structure 012, wherein the connecting structure 012 connects the plurality of punching sheets into a whole, and further comprises a coil package having a plurality of coils, wherein the coils are embedded in the punching unit 011, and a plurality of first through-hole areas 061 arranged along the axial direction of the motor are distributed on the punching unit 011; preferably, the first through-hole areas 061 are evenly distributed around the motor axis, and one or more through-holes may be arranged in each first through-hole area 061; the rotor module 02 comprises a rotating shaft 021, a rotor core 022 sleeved on the outer periphery of the rotating shaft 021, and a rotor electrical accessory 023; the front end cover module 03 and the rear end cover module 04 are respectively positioned and connected to the two ends of the stator module 01 through the connecting structure 012, respectively provide bearing mounting chambers for the two ends of the rotating shaft 021, and are distributed with second through-hole areas 062 corresponding one-to-one to the first through-hole areas 061 to form a connecting channel.

[0021] The motor function is adjusted by changing at least one of the electromagnetic scheme of the coil, the insulation and glue filling process of the coil package, the slot type of the rotor core, the structure of the rotor electrical accessories 023, the size of the rotating shaft 021 and the bearing installation chamber, and the application method of the connecting channel.

[0022] In the present invention, a modular motor structure is provided, the functions of which can be derived from the electromagnetic scheme of the coil, the insulation process and the glue filling process of the coil package, the slot type of the rotor core, the structure of the rotor electrical accessories 023, the size of the bearing installation chamber and the application method of the connecting channel. The modular assembly of the motor depends on the positioning connection of the front cover module 03 and the rear cover module 04 with the connecting structure 012, and the connection of different bearings relative to the front cover module 03, the rear cover module 04 and the rotating shaft 021. After the connection is completed, no matter how the front cover module 03, the rear cover module 04 and the other parts of the stator module 01 change, a stable connection relationship can be guaranteed, thereby obtaining a stable motor appearance structure. In specific implementation, the punching sheet can adopt a polygonal contour to guide the punching sheet unit 011 to have an overall polygonal prism structure, see Figure 1 and Figure 2 , providing a case where the punching sheet unit 011 is a quadrilateral prism, in which case the connection and positioning of each module is more convenient; alternatively, the punching sheet may also adopt a circular profile, thereby guiding the punching sheet unit 011 to have an overall cylindrical structure, and this method is also within the protection scope of the present invention.

[0023] After the above-mentioned external structure is determined, the derivation of the motor function can obtain a stable structural foundation, based on which the specific derivations include: According to different coil electromagnetic schemes and / or different rotor core slot types, different electrical performance requirements can be achieved; Different insulation levels and protection requirements can be achieved according to different insulation and glue filling processes of wire packages; Different motor performances can be obtained according to different structures of the rotor electrical accessories 023. For example, the rotor electrical accessories 023 adopts a squirrel cage structure to achieve asynchronous motor performance, and adopts rare earth magnets to achieve synchronous motor performance; Adapt to different sizes, motor speeds and power requirements according to different shaft 021 and bearing installation chamber sizes; Water cooling and air cooling can be selected and used according to different application modes of the connecting channels.

[0024] In summary, the stable basic structural form obtained based on the connection structure 012 and the front cover module 03 and the rear cover module 04 in the present invention can adapt to different application scenarios by designing each module with a variety of interchangeable specifications with different functions. The effect of deriving multiple sub-products from one motor can be achieved by matching and interchangeably using different specifications of modules, thereby achieving a wide range of applications, energy saving, high efficiency, and easy management and maintenance.

[0025] As a preference of the above embodiment, a connecting channel is provided as a specific implementation of the air cooling channel, such as Figure 3 As shown, the modular motor with derivable functions also includes a fan module 05, which is fixedly connected to the rear end cover module 04 to form a fan assembly installation chamber, and the fan assembly installation chamber is connected to the outside of the motor through a connecting channel.

[0026] The fan module 05 in this preferred solution usually includes a mesh structure to protect the fan assembly, and also to help guide the air flow, prevent external objects from entering the fan assembly, and ensure the safety of the motor operation. The fan assembly is the core component that provides air flow, and is usually driven by an electric motor. It generates airflow through rotation, and the airflow takes away the heat generated inside the motor through the connecting channel, ensuring that the temperature of the motor is not too high, and preventing performance degradation or damage due to overheating.

[0027] In the above embodiment, the fan module 05 is a newly added module that realizes the air cooling function through the connecting channel. It can participate in the optional assembly scheme of the modular structure through the connection with the rear end cover module 04. Similar to the above embodiment, when the connection position and method between the fan module 05 and the rear end cover module 04 are determined, a stable connection relationship can be guaranteed regardless of how other parts change, thereby obtaining a stable motor appearance structure under air cooling.

[0028] As a preferred embodiment of the above, a connecting channel is provided as a specific implementation of the water cooling channel. In this way, the cross section of the through channel can be designed to be circular, and a cooling water pipe is inserted inside to achieve a water cooling effect. In the implementation process, the punching sheet can be processed according to the set hole position and cross-sectional shape, so that the first through area 061 is obtained after multiple punching sheets are stacked.

[0029] As a preferred embodiment of the above, Figure 4 As shown, the connection structure 012 includes a plurality of tie rods 0121 and two end plate structures 0122. The tie rods 0121 penetrate through a plurality of stacked punching sheets. Each end plate structure 0122 is fixedly connected to one end of the plurality of tie rods 0121. The two end plate structures 0122 limit the positions of the tie rods 0121 relative to the punching sheets at both ends to form a whole. The end plate structure provides a positioning structure for the front end cover module 03 and the rear end cover module 04, and the tie rods 0121 provide threaded holes for fixing the front end cover module 03 and the rear end cover module 04.

[0030] In this preferred solution, the end plate structure 0122 and the tie rod 0121 can be fixed by welding or by connecting parts. Under the condition that the purpose of the present invention is met, they are all within the protection scope of the present invention. Through the use of the tie rod 0121 and the end plate structure 0122, the motor has better adaptability. On the basis of the original structure of the motor, the use of the tie rod 0121 and the end plate structure 0122 can more flexibly adapt to the change of the structure of the connection between the front cover module 03 and the rear cover module 04, ensure the versatility of the punching unit 011, and the method of processing separately and independently assuming some functions can reduce the processing difficulty of the structure.

[0031] As a preferred embodiment of the above, Figure 5 As shown, the front cover module 03 includes a barrel portion 031 with a recessed area, and a fixing structure 032 extending from the open end of the barrel portion 031; the recessed area provides a bearing installation chamber, and a shaft through hole 0311 is provided at the bottom, and the fixing structure 032 provides a second through area 062 and a connector installation hole 0321, and the connector installation hole 0321 is used to install the connector connected to the stator module 01. The independent bearing installation chamber is provided to improve the running stability of the motor, extend the service life of the bearing, and reduce mechanical failures or losses caused by inaccurate bearing position. The bearing installation chamber is precisely designed, and the bearing is fixed more firmly, thereby reducing vibration and friction during motor operation, and improving the running stability and working efficiency of the motor. This stability is particularly important under high speed and high load conditions, and can effectively reduce the noise and energy consumption of the system.

[0032] As a preferred embodiment of the above, the front end cover module 03 is formed by a casting process; The casting mold includes a movable mold part, and by adjusting the position of the movable mold, one of the following structures can be obtained: Structure 1: a front end cover module 03 including a barrel portion 031 and a fixing structure 032; Structure 2: a front end cover module 03 including a barrel portion 031 and a fixing structure 032, and a mounting flange 033 extending from the bottom of the barrel portion 031; Structure three: includes a barrel portion 031 and a fixing structure 032, and a front end cover module 03 having a mounting foot 034 extending from the fixing structure 032; Structure 4: includes a cylindrical portion 031 and a fixed structure 032 , and a front end cover module 03 having a mounting flange 033 extending relative to the bottom of the cylindrical portion 031 , and a mounting foot 034 extending relative to the fixed structure 032 .

[0033] like Figure 6 and 7 As shown, the situation of structure four is shown. Through the implementation of the live mold casting process, the mounting flange 033 and the mounting foot 034 can be selectively set according to the installation requirements.

[0034] During the implementation process, Figure 7 As shown, the cylinder part 031 can be provided with a ventilation window 035 according to the requirements of the opening type, and the ventilation window 035 can be flexibly processed and set after the casting is completed.

[0035] As a preferred embodiment of the above, Figure 8 and 9 As shown, the rear end cover module 04 includes a cylindrical portion 031 having a recessed area, an outer shell portion 041 sleeved on the outer periphery of the cylindrical portion 031, and a connecting portion 042 connecting the cylindrical portion 031 and the outer shell portion 041 and dividing the area between the two into a second through area 062; the recessed area provides a bearing mounting room, and the outer shell portion 041 provides a connector mounting hole 0321, and the connector mounting hole 0321 is used to install a connector connected to the stator module 01 and the fan module 05.

[0036] In this preferred embodiment, the function of the rear end cover module 04 is basically the same as that of the front end cover module 03, but the difference is that it needs to establish connections with the stator module 01 and the fan module 05 at the same time. Therefore, its second through area 062 needs to simultaneously connect the corresponding hole positions of the stator module 01 and the fan module 05 on both sides of the axial direction. Based on this situation, the connector mounting hole 0321 is provided through the outer shell part 041.

[0037] In view of the difference between the stator module 01 and the fan module 05, the connection member mounting holes 0321 provided for connecting the two can be the same or different. The specific optional structures include providing the opening position through an external flange structure or providing the opening position through an internal rib structure. Figure 8 and Fig.10 The above two opening positions are shown in the figure, all of which are within the scope of protection of the present invention and can be selected according to the structure to be connected. In this preferred embodiment, the rear end cover module 04 can also obtain the installation foot 034 through a live mold casting process.

[0038] As a preferred embodiment of the above, the local structure of the fan assembly is installed on the outer side of the bottom of the recessed area, see Figure 8 and Fig.10 , showing the positioning hole 043 for fixing, the local structure of the fan assembly is directly installed on the outside of the bottom of the recessed area, avoiding the addition of additional supporting structures or external connectors, reducing the number of parts and production costs in the manufacturing process, and the local structure in this preferred embodiment can be specifically a fan motor.

[0039] In order to better carry out wiring, the outlet 044 can also be opened on the barrel part 031 and the shell part 041 to meet the requirements of various wiring methods on site of customers; in order to better dissipate heat, see Fig.10 , a ventilation hole 045 may be provided at the bottom of the recessed area.

[0040] As a preferred embodiment of the above, Fig.11 and 12 As shown, the fan module 05 includes a shell fixedly connected to the rear end cover module 04; the shell includes an airflow redirecting side wall 051 corresponding to the connecting channel one by one, and a plurality of connecting side walls 052 connecting two adjacent airflow redirecting side walls 051; a protruding structure 0511 is arranged on the inner side of the airflow redirecting side wall 051, and during the rotation of the airflow inside the shell, the airflow direction is changed by blocking the protruding structure 0511.

[0041] Taking the arrangement of four connecting channels as an example, four airflow redirecting side walls 051 and four connecting side walls 052 will be arranged accordingly, so as to be connected to an approximately octahedral structure inside the shell. Of course, the surface of the convex structure 0511 is not flat. In this preferred solution, by arranging the airflow redirecting side wall 051, the airflow inside the fan can be directional-changed during operation, so as to flow into the connecting channel more efficiently. In the existing method, the inner wall of the shell is often a cylindrical structure, or a polyhedral structure with a smooth surface. In this way, when the airflow tends to rotate under the drive of the fan, a pressure difference is often generated inside the shell. This pressure difference causes the airflow to flow from the high-pressure area to the low-pressure area. However, if the inner wall surface of the shell is smooth and the structure is symmetrical, the pressure difference of the airflow may cause the airflow to be unstable, and the airflow may "leak" from certain areas or flow outward, such as flowing to the other side of the shell relative to the connecting channel. This situation will further aggravate the unevenness of the airflow, thereby reducing the cooling efficiency of the fan.

[0042] In this optimization scheme, by setting the airflow redirecting side wall 051, the direction of the airflow can be effectively changed so that it no longer relies solely on natural rotation, but instead forces the airflow to flow along the connecting channel. This directional change can make the airflow flow more stably and specifically to the area that needs cooling, which helps to reduce the instability and eddy current phenomenon of the airflow, thereby reducing the generation of noise and vibration, and improving the uniformity of the airflow and the cooling efficiency.

[0043] As a preferred embodiment of the above, a depression having the same contour as the protruding structure 0511 is formed on the outer side of the airflow redirecting side wall 051, such as Fig.12 As shown in the upper left corner, or, to form a smooth surface, such as Fig.11 As shown in the lower right corner; the former can save materials, and the latter can form a surface on the outer wall of the shell for other structures, such as a surface for installing a junction box, thereby facilitating wiring operations. As a specific optimization method of the protruding structure 0511, it extends along the length direction of the connecting channel, which is optimal for molding. In this way, the protruding structure 0511 can also play the role of a rib to strengthen the structure of the shell.

[0044] As a preferred embodiment of the above, the housing further comprises a bottom surface 053 connected to each side wall, and a mesh cover 054 installed relative to the bottom surface 053; the bottom surface 053 is provided with a hollow area, the connection of the hollow area is in a spiral shape diverging from the center, and the mesh cover 054 blocks the hollow area. In this preferred solution, the wind resistance loss can be reduced by setting the spiral connection, the mesh cover 054 can ensure the cleanliness of the interior of the housing, and the center of the above connection can also be used as a mounting structure for the fan assembly.

[0045] In addition to the above structure, a junction box module 07 may be provided to connect to the set position, for example, see Figure 3 , connected with the rear end cover module 04 and the fan module 05, considering the multi-functionality of on-site wiring methods and positions. The main features are that the wiring box has reserved wire inlets in multiple directions, which are sealed with plugs. Customers can adjust the wire inlet direction according to their needs on site. Two wiring methods, terminal blocks and aviation plugs, can also be reserved for encoders and temperature control sensors.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A modular motor with derivable functions, characterized in that: include: The stator module comprises a sheet unit having a plurality of sheets and a connection structure, wherein the connection structure connects the plurality of sheets into a whole, and a coil package having a plurality of coils, wherein the coils are embedded in the sheet unit, and the sheet unit is provided with a plurality of first through-areas arranged along the axial direction of the motor; The rotor module comprises a rotating shaft, a rotor core sleeved on the outer periphery of the rotating shaft, and rotor electrical accessories; The front cover module and the rear cover module are respectively positioned and connected with the two ends of the stator module through the connection structure, respectively provide bearing installation chambers for the two ends of the rotating shaft, and are distributed with second through-areas corresponding to the first through-areas one by one to form a connecting channel; The motor function is adjusted by changing at least one of the electromagnetic scheme of the coil, the insulation and glue filling process of the coil package, the slot type of the rotor core, the structure of the rotor electrical accessories, the size of the shaft and bearing installation room, and the application method of the connecting channel.

2. The modular motor with derivable functions according to claim 1, characterized in that: It also includes a fan module, which is fixedly connected with the rear end cover module to form a fan assembly installation chamber, and the fan assembly installation chamber is connected to the outside of the motor through the connecting channel.

3. The modular motor with derivable functions according to claim 1, characterized in that: The connection structure includes a plurality of tie rods and two end plate structures, wherein the tie rods penetrate through a plurality of the stacked punching sheets, each of the end plate structures is fixedly connected to one end of the plurality of tie rods, and the two end plate structures restrict the positions of the tie rods relative to the punching sheets at both ends to form a whole; The end plate structure provides a positioning structure for the front end cover module and the rear end cover module, and the pull rod provides a threaded hole for fixing the front end cover module and the rear end cover module.

4. The modular motor with derivable functions according to claim 1, characterized in that: The front end cover module includes a barrel portion having a recessed area, and a fixing structure extending relative to an open end of the barrel portion; The recessed area provides the bearing installation chamber, and a shaft through hole is provided at the bottom, and the fixing structure provides the second through area and the connector installation hole.

5. The modular motor with derivable functions according to claim 4, characterized in that: The front end cover module is formed by a casting process; The casting mold includes a movable mold part, and by adjusting the position of the movable mold, one of the following structures can be obtained: A front end cover module including a barrel portion and a fixing structure; A front end cover module including a barrel portion and a fixing structure, and having a mounting flange extending relative to the bottom of the barrel portion; A front end cover module including a barrel portion and a fixing structure, and having a mounting foot extending relative to the fixing structure; The invention comprises a cylinder part and a fixing structure, a mounting flange is led out relative to the bottom of the cylinder part, and a front end cover module is led out relative to the fixing structure for mounting feet.

6. The modular motor with derivable functions according to claim 2, characterized in that: The rear end cover module comprises a barrel portion having a recessed area, a shell portion sleeved on the outer periphery of the barrel portion, and a connecting portion connecting the barrel portion and the shell portion and dividing the area between the barrel portion and the shell portion into the second through area; The recessed area provides the bearing mounting chamber, and the housing portion provides a connector mounting hole.

7. The modular motor with derivable functions according to claim 6, characterized in that: The local structure of the fan assembly is installed on the outer side of the bottom of the recessed area.

8. The modular motor with derivable functions according to claim 2, characterized in that: The fan module includes a housing fixedly connected to the rear end cover module; The housing includes airflow redirecting side walls corresponding to the communication channels one by one, and a plurality of connecting side walls connecting two adjacent airflow redirecting side walls; A convex structure is arranged on the inner side of the airflow redirecting side wall, and during the rotation of the airflow inside the shell, the airflow direction is changed by blocking by the convex structure.

9. The modular motor with derivable functions according to claim 8, characterized in that: A depression having the same contour as the convex structure is formed on the outer side of the airflow redirecting side wall, or a smooth surface is formed.

10. The modular motor with derivable functions according to claim 8, characterized in that: The housing further comprises a bottom surface connected to each side wall, and a mesh cover mounted relative to the bottom surface; The bottom surface is provided with a hollow area, the connection of the hollow area is in a spiral shape diverging from the center, and the mesh cover blocks the hollow area.

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