Modular rectangular winding slotless linear induction motor structure

Abstract

This invention belongs to the field of linear induction motors and provides a modular rectangular winding slotless linear induction motor structure. The modular rectangular winding slotless linear induction motor structure includes a slotless primary module and a secondary induction board. The slotless primary module includes a rectangular winding and a primary core, with the rectangular winding sleeved on the primary core. The primary core is cuboid, and the rectangular winding is a closed rectangular rotary structure. At least one secondary induction board is provided, and several slotless primary modules are arranged along the length of the secondary induction board. This invention adopts a modular structure, allowing each slotless primary module to be independently processed and assembled. Changing the rectangular winding to different turns, wire diameters, or arrangement parameters only requires adjusting the corresponding module, without reprocessing the entire primary structure, enabling flexible adjustment of winding parameters.

Description

Technical Field

[0001] This invention belongs to the field of linear induction motors, specifically relating to a modular rectangular winding slotless linear induction motor structure. Background Technology

[0002] A linear induction motor is a special type of induction motor that directly converts electrical energy into linear mechanical energy. Its core is to cut open and flatten the traditional rotary induction motor radially, converting the rotating magnetic field into a linearly translating traveling wave magnetic field. This completely eliminates the intermediate transmission links such as gears and lead screws from rotary motion to linear motion, and is one of the core components of the direct drive technology system. A linear induction motor typically consists of a primary part and a secondary part. The primary part refers to the iron core and primary winding, while the secondary part refers to the secondary induction plate or conductive rail. Linear thrust is generated by electromagnetic induction between the primary and secondary parts.

[0003] Currently, the primary winding is either centralized or distributed. The coils wound at the ends tend to stack, resulting in excessively long ends, increasing the axial length, making it difficult to miniaturize the overall motor size, wasting copper wire, and increasing production costs. The winding method is also relatively complex, which is not conducive to large-scale factory production. Traditional linear induction motors are mostly single fixed structures that cannot be assembled or assembled. When testing, it is necessary to make a complete prototype with different parameters, which not only prolongs the testing cycle but also significantly increases the testing cost, making it difficult to efficiently verify the impact of different winding parameters on motor performance. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a modular rectangular winding slotless linear induction motor structure to solve the problems in the prior art. The technical solution adopted by this invention is as follows: A modular rectangular winding slotless linear induction motor structure includes a slotless primary module and a secondary induction board; The slotless primary module includes a rectangular winding and a primary core, with the rectangular winding sleeved on the primary core; the primary core is a cuboid, and the rectangular winding is a closed rectangular rotary structure. The secondary sensing plate is provided with at least one; the secondary sensing plate is provided with a plurality of the toothless primary modules along its length.

[0005] Furthermore, the toothless primary module also includes a frame; the two ends of the primary core are fixedly connected within the frame.

[0006] Furthermore, one end of the frame is provided with a plug for connecting to a power source, and the plug is electrically connected to the rectangular winding.

[0007] Furthermore, the secondary sensing plates can be installed above, below, and on both sides of the toothless primary module.

[0008] Furthermore, the frame is equipped with vertical support rollers for rolling on the secondary sensing plate below.

[0009] Furthermore, adjustable lateral position limiting rollers are provided on both sides of the frame; When the limiting roller is adjusted to its lateral position, it is used to contact the two sides of the secondary sensing plate below, or to contact the secondary sensing plates on both sides.

[0010] Furthermore, the frame is provided with an oblong hole, the limiting roller is rotatably connected to one end of the vertical rod, the other end of the vertical rod is located in the oblong hole, and adjusting screws are provided on both sides of the oblong hole. The two adjusting screws are respectively threaded to the inner and outer sides of the frame, and the opposite ends of the two adjusting screws abut against the two sides of the vertical rod.

[0011] Furthermore, the vertical rod is set vertically, and the axis of the adjusting screw is located in the transverse direction of the toothless primary module.

[0012] The present invention has the following advantages: The present invention adopts a modular structure, and each slotless primary module can be independently processed and assembled; when changing rectangular windings with different turns, wire diameters or arrangement parameters, only the corresponding module needs to be adjusted, without reprocessing the entire primary structure, and the winding parameters can be flexibly adjusted; and the use of rectangular winding structure can avoid the complex winding method of traditional windings, making manufacturing simpler, reducing the use of copper wire, saving manufacturing costs, and reducing the axial length of the motor. Attached Figure Description

[0013] Figure 1 This is a simplified structural diagram of the present invention; Figure 2 This is a schematic diagram of the secondary sensor plate distribution; Figure 3 This is a simplified diagram of a rectangular winding structure; Figure 4 This is a specific example diagram of a cogless primary module; Figure 5 It is a top view; Figure 6 This is a schematic diagram of the connection relationship of the adjusting screw. Detailed Implementation

[0014] The following will be based on embodiments of the present invention. Figures 1-6 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0015] like Figures 1-3 The present invention provides a modular rectangular winding slotless linear induction motor structure, including a slotless primary module 7 and a secondary induction board 8; The slotless primary module 7 includes a rectangular winding 1 and a primary iron core 2. The rectangular winding 1 is sleeved on the primary iron core 2. The primary iron core 2 is a cuboid, and the rectangular winding 1 is a closed rectangular rotary structure. The secondary sensing plate 8 is provided with at least one; a plurality of the slotless primary modules 7 are provided along the length direction of the secondary sensing plate 8.

[0016] The coil is wound around the primary iron core 2 in a rectangular winding 1, which is relatively regular and easy to manufacture. This structure can reduce the axial length of the motor, reduce the pitching torque, and make the motor run more smoothly. Each rectangular winding 1 is independent of each other and is connected by wires to form a parallel circuit structure. Each rectangular winding 1 and its respective primary iron core 2 constitute a slotless primary module 7, realizing modular assembly. It can be quickly connected into three-phase, five-phase, and six-phase motors according to different working conditions, providing a flexible power supply method. The primary iron core 2 adopts a slotless structure, which makes the current in the rectangular winding 1 more widely distributed laterally on the surface of the iron core. Under the same current density, the longitudinal distribution of the iron core is correspondingly narrower, which can further increase the motor efficiency. Since the rectangular winding 1 has a rectangular shape on the side, its four side winding segments can all be used as effective winding segments. Therefore, secondary induction plates 8 can be placed on the four sides of the rectangle. When a symmetrical sinusoidal current is passed through the rectangular winding 1, an induced current is generated on the four side secondary induction plates 8, which increases the total thrust density of the motor. The secondary induction board 8 is existing technology, and it includes a secondary induction board 4 and a secondary iron core 5. A mechanical air gap 6 exists between the secondary induction board 8 and the slotless primary module 7.

[0017] Two adjacent slotless primary modules 7 can be connected by bolts to form a long primary structure.

[0018] This invention adopts a modular structure, and each slotless primary module 7 can be independently processed and assembled. When changing the rectangular winding 1 with different number of turns, wire diameter or arrangement parameters, only the corresponding module needs to be adjusted, without reprocessing the entire primary structure, and the winding parameters can be flexibly adjusted. Furthermore, the rectangular winding 1 structure can avoid the complex winding method of traditional windings, making manufacturing simpler, reducing the use of copper wire, saving manufacturing costs, and reducing the axial length of the motor.

[0019] like Figure 4 The toothless primary module 7 also includes a frame 3; the two ends of the primary core 2 are fixedly connected within the frame 3. The frame 3 has a hollow structure.

[0020] Furthermore, one end of the frame 3 is provided with a plug for connecting to a power source, and the plug is electrically connected to the rectangular winding 1.

[0021] The rectangular winding 1 can be powered by a battery, which can be mounted on the frame 3; or by a current-feeding rail carbon brush, with the plug, carbon brush, and rectangular winding 1 connected by wires. The carbon brush moves on the current-feeding rail, which provides current to the carbon brush; or an external power supply can be directly connected to the plug, supplying power to the rectangular winding 1 through wires. After the rectangular winding 1 is powered, an alternating magnetic field is generated. The alternating magnetic field induces electromagnetic currents with the secondary induction plate 8, generating eddy currents. The eddy currents interact with the alternating magnetic field to generate electromagnetic thrust (Ampere force), thereby driving the slotless primary module 7 to operate.

[0022] In this invention, the direction of movement of the toothless primary module 7 is the length direction and longitudinal direction of the toothless primary module 7; the horizontal direction perpendicular to the direction of movement is the transverse direction.

[0023] Furthermore, the secondary sensing plates 8 can be installed above, below, and on both sides of the toothless primary module 7. Up to four secondary sensing plates 8 can be installed as needed.

[0024] like Figure 5 The frame 3 is equipped with vertical support rollers 9, which are used to roll on the secondary sensing plate 8 below.

[0025] Four support rollers 9 are provided to vertically support the toothless primary module 7. The four support rollers 9 are located at the four corners of the frame 3.

[0026] Furthermore, adjustable lateral position limiting rollers 10 are provided on both sides of the frame 3; When the limiting roller 10 is adjusted to its lateral position, it is used to contact the two sides of the secondary sensing plate 8 below, or to contact the secondary sensing plates 8 on both sides. There are four limiting rollers 10, with two distributed on each side of the frame 3.

[0027] like Figure 6 The frame 3 is provided with an oblong hole 12. The limiting roller 10 is rotatably connected to one end of the vertical rod 13. The other end of the vertical rod 13 is located in the oblong hole 12. Adjusting screws 11 are provided on both sides of the oblong hole 12. The two adjusting screws 11 are respectively threaded to the inner and outer sides of the frame 3. The opposite ends of the two adjusting screws 11 abut against the two sides of the vertical rod 13.

[0028] Furthermore, the vertical rod 13 is set vertically, and the axis of the adjusting screw 11 is located in the transverse direction of the toothless primary module 7.

[0029] In practical implementation, by rotating the two adjusting screws 11, the vertical rod 13 can be pushed to move laterally within the oblong hole 12, thereby adjusting the limiting roller 10 to a suitable lateral position. When only one secondary sensing plate 8 is provided at the bottom, the limiting rollers 10 on both sides abut against the sides of the secondary sensing plate 8 to form a limiting structure, thereby constraining the movement direction of the slotless primary module 7. When secondary sensing plates 8 are provided on both sides of the slotless primary module 7, by adjusting the position of the limiting rollers 10, the limiting rollers 10 on both sides abut against the corresponding secondary sensing plates 8, forming a limiting structure. This invention, through the adjustable structure of the limiting rollers 10, adapts to different numbers and layouts of secondary sensing plates 8.

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A modular rectangular winding slotless linear induction motor structure, characterized in that, It includes a toothless primary module (7) and a secondary sensing plate (8); The slotless primary module (7) includes a rectangular winding (1) and a primary core (2). The rectangular winding (1) is sleeved on the primary core (2). The primary core (2) is a cuboid, and the rectangular winding (1) is a closed rectangular rotary structure. The secondary sensing plate (8) is provided with at least one; a plurality of the slotless primary modules (7) are provided in the length direction of the secondary sensing plate (8).

2. The modular rectangular winding slotless linear induction motor structure according to claim 1, characterized in that... The toothless primary module (7) also includes a frame (3); the two ends of the primary core (2) are fixedly connected inside the frame (3).

3. The modular rectangular winding slotless linear induction motor structure according to claim 2, characterized in that... One end of the frame (3) is provided with a plug for connecting to a power source, and the plug is electrically connected to the rectangular winding (1).

4. The modular rectangular winding slotless linear induction motor structure according to claim 1, characterized in that... The secondary sensing plate (8) can be set above, below and on both sides of the primary module (7) without tooth grooves.

5. The modular rectangular winding slotless linear induction motor structure according to claim 2, characterized in that... The frame (3) is equipped with vertical support rollers (9) for rolling on the secondary sensing plate (8) below.

6. The modular rectangular winding slotless linear induction motor structure according to claim 2, characterized in that... The frame (3) is provided with adjustable lateral position limiting rollers (10) on both sides. When the limiting roller (10) adjusts its lateral position, it is used to contact the two sides of the lower secondary sensing plate (8), or to contact the two sides of the secondary sensing plate (8).

7. The modular rectangular winding slotless linear induction motor structure according to claim 6, characterized in that... The frame (3) is provided with a waist-shaped hole (12). The limiting roller (10) is rotatably connected to one end of the vertical rod (13). The other end of the vertical rod (13) is located in the waist-shaped hole (12). Adjusting screws (11) are provided on both sides of the waist-shaped hole (12). The two adjusting screws (11) are threaded to the inner and outer sides of the frame (3) respectively. The opposite ends of the two adjusting screws (11) abut against the two sides of the vertical rod (13).

8. The modular rectangular winding slotless linear induction motor structure according to claim 7, characterized in that... The vertical rod (13) is set vertically, and the axis of the adjusting screw (11) is located in the transverse direction of the toothless primary module (7).

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