Modular motor

Abstract

The utility model provides a modularized motor, which comprises a plurality of rotor modules and stator modules which are sequentially spliced along the moving direction of a rotor, each rotor module comprises a rotor bottom plate and a plurality of permanent magnets, a plurality of rotor bulges are annularly arranged on one group of adjacent side walls of the rotor bottom plate, and a plurality of stator bulges are annularly arranged on one group of adjacent side walls of the rotor bottom plate. A plurality of rotor grooves are annularly formed in the other group of adjacent side walls, so that two adjacent rotor modules are clamped and fixed; each stator module comprises a stator bottom plate, a plurality of stator iron cores and a plurality of armature coils, the stator iron cores are arranged at the top end of the stator bottom plate at intervals in the moving direction of the rotor, the armature coils are wound on the stator iron cores respectively, a plurality of stator protrusions are annularly arranged on one set of adjacent side walls of the stator bottom plate, and the armature coils are wound on the stator protrusions. And a plurality of stator grooves are annularly formed in the other group of adjacent side walls, so that two adjacent stator modules are clamped and fixed. The beneficial effects of the utility model are that flexible splicing of the rotor module and the stator module can be realized, and the maximum bearing capacity of the motor can be flexibly adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet linear motors, and more specifically, to a modular motor. Background Art

[0002] Compared with the driving mode of traditional rotary motors + mechanical conversion mechanisms, a linear motor direct drive system can directly convert electrical energy into linear motion mechanical energy without an intermediate mechanical conversion mechanism, improving the efficiency, reliability, and control accuracy of the drive system, and is suitable for occasions of linear motion.

[0003] The length of a linear motor is closely related to the application scenario. To improve the flexibility of motor assembly, existing commercial linear motors mostly adopt a stator modularization scheme, that is, multiple stator modules can be spliced along the moving direction of the mover to flexibly adjust the moving stroke of the mover. However, in the above scheme, the movers of the motor cannot be spliced, resulting in a fixed maximum output thrust of the motor and a fixed contact area on the mover surface for carrying the load, that is, the maximum load-bearing capacity of the motor cannot be flexibly adjusted. In occasions such as logistics transportation where the motor load varies greatly, it is necessary to prepare multiple movers with different load-bearing capacities, which not only increases production and maintenance costs but also limits the flexibility of system scheduling. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to achieve flexible splicing of mover modules and stator modules and flexibly adjust the maximum load-bearing capacity of the motor. To overcome the defects of the above prior art (or related art), the utility model provides a modular motor.

[0005] The utility model provides a modular motor, which includes a plurality of mover modules and stator modules spliced in sequence along a preset mover movement direction or along a direction perpendicular to the mover movement direction. Each mover module includes a mover bottom plate and a plurality of permanent magnets. The permanent magnets are arranged at intervals along the mover movement direction at the bottom end of the mover bottom plate. A plurality of mover protrusions are provided on a set of adjacent side walls of the mover bottom plate, and a plurality of mover grooves penetrating along the thickness direction are provided on the other set of adjacent side walls, so that two adjacent mover modules are clamped and fixed through the mover protrusions and the mover grooves; each stator module includes a stator bottom plate, a plurality of stator cores, and a plurality of armature coils. The stator cores are arranged at intervals along the mover movement direction at the top end of the stator bottom plate. The armature coils are respectively wound around the stator cores. A plurality of stator protrusions are provided on a set of adjacent side walls of the stator bottom plate, and a plurality of stator grooves penetrating along the thickness direction are provided on the other set of adjacent side walls, so that two adjacent stator modules are clamped and fixed through the stator protrusions and the stator grooves.

[0006] Compared with the prior art, a modular motor of the present application has the following advantages: In the present application, protrusions and grooves are provided on the side walls of each mover base plate and stator base plate, so that the mover module and the stator module can be spliced not only along the mover movement direction, but also along the direction perpendicular to the mover movement direction, realizing flexible adjustment of the mover movement stroke and the maximum load-bearing capacity of the motor.

[0007] In a possible implementation manner, each of the mover base plates and each of the stator base plates is a rectangular plate member. Adjacent two mover base plates are snap-fitted and fixed through the mover protrusions and the mover grooves on the short sides or long sides, and adjacent two stator base plates are snap-fitted and fixed through the stator protrusions and the stator grooves on the short sides or long sides.

[0008] In a possible implementation manner, at least two mover protrusions and at least two mover grooves are respectively provided on two short sides and two long sides of each mover base plate, and at least two stator protrusions and at least two stator grooves are provided on two short sides and two long sides of each stator base plate.

[0009] Compared with the prior art, adopting the above technical solution can ensure the connection stability between adjacent mover base plates through two pairs of mover protrusions and mover grooves, and ensure the connection stability between adjacent stator base plates through two pairs of stator protrusions and stator grooves.

[0010] In a possible implementation manner, each of the mover modules includes an even number of the permanent magnets.

[0011] In a possible implementation manner, there is a main gap between each of the permanent magnets on the same mover module, and there is an end gap between adjacent two permanent magnets on adjacent two mover modules, and the main gap is the same as the end gap in size.

[0012] Compared with the prior art, after adopting the above technical solution, the width of the end gap of the mover module is equal to half of the main gap. When multiple mover modules are spliced along the mover movement direction, it can ensure the uniform distribution of the spliced permanent magnets and realize the stable operation of the mover module.

[0013] In a possible implementation manner, each of the two stator iron cores near the end on each stator base plate includes at least one main iron core tooth, at least one isolation iron core tooth and at least one end iron core tooth. The end iron core tooth, the main iron core tooth and the isolation iron core tooth are arranged in sequence along the mover movement direction. Each of the stator iron cores located in the middle includes at least one main iron core tooth and at least one isolation iron core tooth. The main iron core tooth and the isolation iron core tooth are arranged in sequence along the mover movement direction. Each of the armature coils is wound around each of the main iron core teeth.

[0014] Compared with the prior art, after adopting the above technical solution, the armature coil adopts a single-layer winding scheme, that is, adjacent armature coils are separated by the isolation core teeth, and there is no armature coil spanning adjacent stator modules, which helps to simplify the wiring process when splicing the stator modules.

[0015] In a possible implementation manner, the width of the end core teeth is half of the width of the isolation core teeth.

[0016] Compared with the prior art, after adopting the above technical solution, the width of the end core teeth of the stator module is equal to half of the isolation core teeth. When multiple stator modules are spliced along the moving direction of the mover, it can ensure that the spliced armature coils are evenly distributed, realizing the stable operation of the mover module.

[0017] In a possible implementation manner, each of the stator cores and the stator base plate are fixedly connected through dovetail grooves.

[0018] Compared with the prior art, after adopting the above technical solution, by connecting the stator core and the stator base plate through dovetail grooves, the stator core can be firmly fixed on the stator base plate, ensuring the mechanical strength of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a single mover module of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of a single stator module of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the splicing structure of multiple mover modules of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the splicing structure of multiple stator modules of the present utility model;

[0023] Figure 5 It is a schematic structural diagram of multiple groups of stator modules of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of multiple groups of mover modules of the present utility model;

[0025] Figure 7 It is a schematic structural diagram of the non-misaligned splicing structure of the mover module along the short side direction of the present utility model;

[0026] Figure 8 It is a schematic structural diagram of the misaligned splicing structure of the mover module along the short side direction of the present utility model;

[0027] Description of reference numerals in the drawings: 1. Rotor module; 11. Rotor bottom plate; 12. Permanent magnet; 13. Rotor protrusion; 14. Rotor groove; 15. Main gap; 16. End gap; 2. Stator module; 21. Stator bottom plate; 22. Stator core; 221. Main core tooth; 222. Isolation core tooth; 223. End core tooth; 23. Armature coil; 24. Stator protrusion; 25. Stator groove. Detailed implementation manners

[0028] First of all, those skilled in the art should understand that these implementation manners are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0029] The following further describes the present application in detail with reference to the drawings and specific embodiments.

[0030] See Figure 1 and Figure 2 . An embodiment of the present application discloses a modular motor. Among them, the rotor module 1 includes a rotor bottom plate 11 and a permanent magnet 12; the rotor bottom plate 11 is made of a magnetic conductive material and is generally rectangular. On one long side and short side of the rotor bottom plate 11, there are rotor protrusions 13, and on the other long side and short side, there are rotor grooves 14; a single rotor module 1 contains an even number of permanent magnets 12, and there is a main gap 15 between adjacent permanent magnets 12, and there is an end gap 16 between the permanent magnet 12 and the edge of the rotor bottom plate 11. The width of the end gap 16 is equal to half of the main gap 15; the stator module 2 includes a stator core 22, an armature coil 23 and a stator bottom plate 21; the stator core 22 includes an isolation core tooth 222, a main core tooth 221 and an end core tooth 223, and the width of the end core tooth 223 is equal to half of the isolation core tooth 222; the armature coil 23 is wound on the main core tooth 221, and adjacent armature coils 23 are separated by the isolation core tooth 212; the stator bottom plate 21 is generally rectangular. On one long side and short side of the stator bottom plate 21, there are stator protrusions 24, and on the other long side and short side, there are stator grooves 25. The stator core 22 and the stator bottom plate 21 are connected by a dovetail groove.

[0031] Continue to refer to Figure 1 . On one long side and short side of the rotor bottom plate 11, there are rotor grooves 14, and the rotor grooves 14 penetrate along the thickness direction of the rotor bottom plate 11, so that two adjacent rotor modules 1 are fixed by engaging the respective rotor protrusions 13 and the respective rotor grooves 14 to prevent detachment in the horizontal direction; on one long side and short side of the stator bottom plate 21, there are stator grooves 25, and the stator grooves 25 penetrate along the thickness direction of the stator bottom plate 21, so that two adjacent stator modules 2 are fixed by engaging the respective stator protrusions 24 and the respective stator grooves 25 to prevent detachment in the horizontal direction.

[0032] See Figure 3 , multiple mover modules 1 can be spliced along the long side (the mover movement direction) or the short side (the direction perpendicular to the mover movement direction) through mover protrusions 13 and mover grooves 14. That is, for a modular motor of the present application, only one size of mover module 1 is required, and movers of any size can be formed through splicing to meet the requirements of the maximum load-bearing capacity of the motor.

[0033] See Figure 4 , multiple stator modules 2 can be spliced along the long side (the mover movement direction) or the short side (the direction perpendicular to the mover movement direction) through stator protrusions 24 and stator grooves 25. That is, for a modular motor of the present application, only one size of stator module 2 is required, and stators of any size can be formed through splicing to meet the requirements of the maximum load-bearing capacity of the motor; In summary, the modular motor of the present application only requires one size of mover module 1 and stator module 2, with high assembly flexibility and can achieve lower production and operation costs.

[0034] See Figure 5 , in a modular motor of the present application, multiple stator modules 2 can be divided into multiple groups, with gaps between each group. When the mover module 1 is accelerated by the right group of stator modules 2, it can rely on inertia to pass through the gap between the two groups of stator modules 2 and reach the left group of stator modules 2. Compared with the scheme where the entire area is covered with stator modules 2, the above scheme can reduce the number of required stator modules 2, thereby reducing the cost of the motor.

[0035] See Figure 6 , in a modular motor of the present application, multiple mover modules 1 can be divided into multiple groups, with gaps between each group. The left group of mover modules 1 and the right group of mover modules 1 can respectively carry loads and operate independently of each other, that is, the motor can transport two loads simultaneously, improving the transportation efficiency.

[0036] See Figure 7 , in a modular motor of the present application, the mover module 1 and the stator module 2 can be spliced along the direction perpendicular to the mover movement direction. On the one hand, this can increase the electromagnetic interaction area between the mover module 1 and the stator module 2, and on the other hand, it can increase the contact area of the mover module 1 for carrying the load, thereby improving the maximum load-bearing capacity of the motor.

[0037] See Figure 8 , in a modular motor of the present application, the mover module 1 and the stator module 2 can be spliced along the direction perpendicular to the mover movement direction, and the mover module 1 adopts a staggered splicing method, so that the relative positions of each mover module 1 and the stator module 2 are no longer the same, and the thrust fluctuations generated by each mover module 1 cancel each other out due to the phase difference, achieving the purpose of smooth operation of the motor.

[0038] Continue to see Figure 8, in a modular motor of the present application, the rotor module 1 and the stator module 2 can be spliced along the direction perpendicular to the movement direction of the rotor, and the stator module 2 adopts a staggered splicing method, so that the relative positions of the rotor modules 1 and the stator module 2 are no longer the same, and the thrust fluctuations generated by each rotor module 1 are offset by the phase difference, achieving the purpose of smooth operation of the motor.

[0039] Continue to refer to Figure 1 , in a modular motor of the present application, the excitation source of the armature coil 23 is three-phase alternating current, which is the same as that of the existing motor, which can ensure the compatibility of the present application with the existing motor system and facilitate the popularization and application of the motor of the present application.

[0040] In the description of the present application, the description with reference to terms such as "one embodiment", "some embodiments", "in this embodiment", "specific examples", or "some examples" means that the specific features, mechanisms, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0041] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A modular motor, characterized in that: The invention comprises a plurality of mover modules (1) and stator modules (2) which are sequentially spliced ​​along a preset mover movement direction or along a direction perpendicular to the mover movement direction, each of the mover modules (1) comprising a mover base plate (11) and a plurality of permanent magnets (12), each of the permanent magnets (12) being arranged at intervals at the bottom end of the mover base plate (11) along the mover movement direction, a plurality of mover protrusions (13) being arranged on one group of adjacent side walls of the mover base plate (11), and a plurality of mover grooves (14) penetrating along the thickness direction being arranged on another group of adjacent side walls, so that two adjacent mover modules (1) are clamped by each of the mover protrusions (13) and each of the mover grooves (14). The stator modules (2) are fixed together; each of the stator modules (2) comprises a stator base plate (21), a plurality of stator cores (22) and a plurality of armature coils (23); the stator cores (22) are arranged at intervals on the top of the stator base plate (21) along the direction of motion of the mover; the armature coils (23) are respectively wound on the stator cores (22); a plurality of stator protrusions (24) are arranged on one group of adjacent side walls of the stator base plate (21); a plurality of stator grooves (25) are arranged on another group of adjacent side walls and penetrate in the thickness direction, so that two adjacent stator modules (2) are fixed together by means of the stator protrusions (24) and the stator grooves (25).

2. The modular motor according to claim 1, characterized in that: Each of the mover bottom plates (11) and each of the stator bottom plates (21) are rectangular parallelepiped plates; two adjacent mover bottom plates (11) are fixed by snapping together each of the mover protrusions (13) and each of the mover grooves (14) on a short side or a long side; and two adjacent stator bottom plates (21) are fixed by snapping together each of the stator protrusions (24) and each of the stator grooves (25) on a short side or a long side.

3. The modular motor according to claim 2, characterized in that: At least two mover protrusions (13) and at least two mover grooves (14) are respectively provided on the two short sides and the two long sides of each mover bottom plate (11), and at least two stator protrusions (24) and at least two stator grooves (25) are provided on the two short sides and the two long sides of each stator bottom plate (21).

4. The modular motor according to claim 1, characterized in that: Each of the mover modules (1) comprises an even number of the permanent magnets (12).

5. The modular motor according to claim 1, characterized in that: A main gap (15) exists between each of the permanent magnets (12) on the same mover module (1), an end gap (16) exists between two adjacent permanent magnets (12) on two adjacent mover modules (1), and the main gap (15) and the end gap (16) are of the same size.

6. The modular motor according to claim 1, characterized in that: The two stator cores (22) near the ends of each stator bottom plate (21) each comprise at least one main core tooth (221), at least one isolated core tooth (222) and at least one end core tooth (223); the end core teeth (223), the main core teeth (221) and the isolated core teeth (222) are arranged in sequence along the moving direction of the mover; each stator core (22) located in the middle portion each comprises at least one main core tooth (221) and at least one isolated core tooth (222); the main core teeth (221) and the isolated core teeth (222) are arranged in sequence along the moving direction of the mover; and each armature coil (23) is respectively wound on each main core tooth (221).

7. The modular motor according to claim 6, characterized in that: The width of the end core tooth (223) is half of the width of the isolated core tooth (222).

8. The modular motor according to claim 1, characterized in that: Each of the stator iron cores (22) and the stator bottom plate (21) is fixedly connected via a dovetail groove.

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