High-integration anti-interference permanent magnet synchronous linear motor

Abstract

The invention provides a high-integration anti-interference permanent magnet synchronous linear motor, and relates to the technical field of linear motors, the high-integration anti-interference permanent magnet synchronous linear motor comprises a sliding rail, and a stator is arranged at the top in the sliding rail; according to the high-integration anti-interference permanent magnet synchronous linear motor, the iron core in the rotor is of a structure formed by splicing a plurality of iron core single bodies, winding is conducted on the iron core single bodies firstly, then splicing is conducted, winding and slot fullness rate are facilitated, and the high-integration anti-interference permanent magnet synchronous linear motor is convenient to assemble and disassemble. The iron core single bodies are spliced in a tenon and mortise matching mode, connection is convenient and firm, more importantly, the T-shaped grooves play a role in connecting the shell and the iron core single bodies, at least two intervals guarantee the connection stability, and in every two adjacent T-shaped grooves, the space between the shell and the iron core single bodies is larger than the space between the shell and the iron core single bodies. And the T-shaped strip is arranged in at most one T-shaped groove, so that the overall gravity center of the iron core is prevented from excessively deviating, and the structural stability is favorably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motors, and in particular to a highly integrated anti-interference permanent magnet synchronous linear motor. Background Art

[0002] The highly integrated and anti-interference permanent magnet synchronous linear motor is an advanced linear drive device that integrates high efficiency, high precision, compact design and strong electromagnetic compatibility. The motor realizes direct linear conversion of power by combining permanent magnets with the principle of synchronous linear motion, abandons the conversion mechanism required by traditional rotary motors, and significantly improves space utilization and energy conversion efficiency. Its high integration characteristics are reflected in the high integration of the internal structure of the motor, including but not limited to optimizing the layout of key components such as drive circuits, sensors, cooling systems and even control systems, and tightly packaging them in a limited space, reducing external connections, simplifying installation and maintenance processes, and enhancing the overall stability and reliability of the system. In terms of anti-interference, the motor fully considers electromagnetic compatibility during design, adopts advanced shielding technology, filtering circuits and special materials, effectively suppresses internal and external electromagnetic interference, ensures the stable operation of the motor in a complex electromagnetic environment, and is not affected by external factors such as radio frequency interference and power supply fluctuations. Through precise electromagnetic design and signal processing technology, the motor can reduce its own electromagnetic radiation while maintaining high performance output, and is suitable for medical, aerospace, precision instrument manufacturing and other fields that have strict requirements on the electromagnetic environment.

[0003] The rotor core of a linear motor is generally an integrated structure. Although the integrated structure has high structural strength, it is not convenient for winding enameled wire, the slot fill rate is low, and when the core is damaged, it needs to be replaced as a whole, and the replacement cost is high. Some existing split rotor cores are composed of multiple groups of core units, and each group of core units is spliced ​​by two core monomers. This splicing structure has a large interval between the core units, and the dimensional accuracy is not easy to control. In addition, the overall integrity of the core is low. The splicing efficiency of the method of splicing two core monomers into one core unit is also low.

[0004] Therefore, it is necessary to provide a new highly integrated anti-interference permanent magnet synchronous linear motor to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a highly integrated anti-interference permanent magnet linear synchronous motor.

[0006] The highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention comprises:

[0007] A slide rail, wherein a stator is arranged at the top of the slide rail;

[0008] Two sliders slide on both sides of the top of the slide rail respectively, and the two sliders are directly provided with a slide seat, and a mover is provided at the bottom of the slide seat, and the mover is located at the upper end of the stator. The mover includes a shell, and a plurality of core monomers are arranged inside the shell. The plurality of core monomers are arranged end to end in a straight line, and the core monomers include a winding part and a splicing part. The top of the winding part is fixedly connected to the splicing part, and a tenon is provided at one end of the splicing part, and a tenon is fixedly connected at one end of the splicing part away from the tenon groove, and the tenon can slide in the tenon groove. A T-shaped strip is provided on the top of the splicing part, and the length of the T-shaped strip extending to the tenon side is greater than the length extending to the tenon groove side. A plurality of T-shaped slots are provided on the top of the T-shaped strip, and at least two T-shaped slots are connected to the shell and the slide seat in sequence through bolts.

[0009] Furthermore, the winding portion and the splicing portion are integrally arranged.

[0010] Furthermore, a nylon plastic coating layer is provided on the outer side of the winding portion.

[0011] Furthermore, the stator includes a yoke plate and a plurality of magnetic steels, and the plurality of magnetic steels are arranged on the yoke plate at equal intervals and at an angle.

[0012] Furthermore, the length direction of one of the magnetic steels forms an angle no greater than degrees with the length direction of the yoke plate.

[0013] Furthermore, the two ends of the slide rail are respectively fixedly connected with support seats, the tops of the two support seats are fixedly connected with cover plates, and the slide seat extends from both sides of the cover plate to the top thereof.

[0014] Furthermore, plastic end covers are provided on the outer sides of the two support seats.

[0015] Furthermore, two buffers are respectively arranged at two ends of the inner side of the slide rail.

[0016] Compared with the related art, the highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention has the following beneficial effects:

[0017] 1. The highly integrated anti-interference permanent magnet synchronous linear motor has a structure in which the core of the mover is made of multiple core monomers. The wire is first wound on the core monomer and then assembled, which is convenient for winding and slot fill rate. The assembly between the core monomers adopts the matching method of tenon and mortise, which is convenient and reliable. More importantly, the T-slot serves to connect the shell and the core monomer. The interval of at least two ensures the stability of the connection. Among the two adjacent T-slots, at most only one T-slot is provided with a T-bar to ensure that the overall center of gravity of the core will not be excessively offset, which helps to improve the structural stability.

[0018] 2. The T-slot is an asymmetric structure, which can improve the center of gravity of the entire core unit so that the center of gravity will not be too biased towards the tenon side, which can improve the overall stability of the core after assembly, and ultimately achieve the structural stability and high performance of the linear motor while facilitating winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of the highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention;

[0020] Figure 2 A schematic diagram of the partial structure of the highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention;

[0021] Figure 3 A schematic diagram of the structure of the slide and the mover provided by the present invention;

[0022] Figure 4 A schematic structural diagram of an iron core monomer provided by the present invention;

[0023] Figure 5 A schematic cross-sectional structural diagram of an iron core monomer provided by the present invention;

[0024] Figure 6 A schematic diagram of the structure of the splicing portion and the T-slot provided by the present invention;

[0025] Figure 7 A schematic structural diagram of a stator provided by the present invention.

[0026] Numbers in the figure: 1. slide rail; 2. stator; 3. yoke plate; 4. magnet; 5. support seat; 6. cover plate; 7. plastic end cover; 8. buffer; 9. slider; 10. slide seat; 11. mover; 12. housing; 13. core unit; 14. winding part; 15. splicing part; 16. T-slot; 17. T-bar; 18. mortise and tenon; 19. tenon. DETAILED DESCRIPTION

[0027] 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.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 , Figure 1A schematic diagram of the overall structure of the highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention; Figure 2 A schematic diagram of the partial structure of the highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention; Figure 3 A schematic diagram of the structure of the slide and the mover provided by the present invention; Figure 4 A schematic structural diagram of an iron core monomer provided by the present invention; Figure 5 A schematic cross-sectional structural diagram of an iron core monomer provided by the present invention; Figure 6 A schematic diagram of the structure of the splicing portion and the T-slot provided by the present invention; Figure 7 A schematic structural diagram of a stator provided by the present invention.

[0029] In the specific implementation process, Figures 1 to 7 As shown, the highly integrated anti-interference permanent magnet linear synchronous motor provided by the present invention comprises:

[0030] A slide rail 1, wherein a stator 2 is arranged at the top of the slide rail 1;

[0031] Two sliders 9 slide on both sides of the top of the slide rail 1 respectively. The two sliders 9 are directly provided with a slide seat 10. A mover 11 is provided at the bottom of the slide seat 10. The mover 11 is located at the upper end of the stator 2. The mover 11 includes a shell 12. A plurality of core monomers 13 are provided inside the shell 12. The plurality of core monomers 13 are arranged end to end along a straight line. The core monomer 13 includes a winding portion 14 and a splicing portion 15. The top of the winding portion 14 is fixedly connected to the splicing portion 15. A mortise 18 is provided at one end of the splicing portion 15. A tenon 19 is fixedly connected to the end of the splicing portion 15 away from the tenon 18. The tenon 19 can slide in the tenon 18. A T-shaped bar 17 is provided at the top of the splicing portion 15. The length of the T-shaped bar 17 extending to the tenon 19 side is greater than the length extending to the tenon 18 side. A plurality of T-shaped slots 16 are provided at the top of the T-shaped bar 17. At least two T-shaped slots 16 are sequentially connected to the shell 12 and the slide seat 10 by bolts.

[0032] The tenons 19 and tenons 18 of a plurality of core monomers 13 are spliced ​​together by flat-nose pliers without gap or interference, which has high splicing efficiency and tight structure, and can meet the requirements of fast running speed and high repeated positioning accuracy of the linear motor;

[0033] The core of the mover 11 is a structure formed by splicing multiple core monomers 13. This split structure can realize winding on the core monomer 13 first and then assembling, which is convenient for winding and slot full rate. The assembly between the core monomers 13 adopts the matching method of tenon 19 and tenon groove 18, which is convenient and reliable. More importantly, a T-slot 16 is provided between the tenon 19 and the tenon groove 18 of the splicing part 15. The T-slot 16 is an asymmetric structure, specifically, the length of the horizontal side extending to the tenon 19 side is greater than the length extending to the tenon groove 18 side, which can improve the center of gravity of the entire core monomer 13, so that the center of gravity will not be too biased to the tenon 19 side, and the overall stability of the core after assembly can be improved, and finally the structural stability and high performance of the linear motor can be achieved under the premise of convenient winding.

[0034] In addition to improving the center of gravity of the core unit 13, the T-slot 16 can also connect the shell 12 and the core unit 13. The spacing of at least two ensures the stability of the connection. Among the two adjacent T-slots 16, at most only one T-slot 16 is provided with a T-bar 17 to ensure that the overall center of gravity of the core will not be excessively offset, which helps to improve the structural stability.

[0035] like Figure 2 , 7 As shown, the stator 2 includes a yoke plate 3 and a plurality of magnetic steels 4. The yoke plate 3 is connected to the slide rail 1 by bolts. The plurality of magnetic steels 4 are arranged on the yoke plate 3 at equal intervals and tilted. The length direction of one magnetic steel 4 forms an angle of no more than 10 degrees with the length direction of the yoke plate 3.

[0036] This setting can reduce torque pulsation and increase the peak thrust of the linear motor. The stator 2 is designed with three standard lengths of yoke plates 3 based on the requirements of slot pitch and pole pitch for performance matching, which are 48mm, 144mm and 240mm respectively. They are short in length and easy to process, with high production efficiency, and are suitable for large-scale modular production mode. When customers choose yoke plates 3 of different lengths, they can all be spliced ​​together by multiple sub-yoke plates 3, with high versatility and easy manufacturing.

[0037] like Figures 4 to 6 As shown, the winding portion 14 and the splicing portion 15 are integrally arranged, and a nylon plastic coating layer is arranged on the outside of the winding portion 14;

[0038] The material of the spliced ​​core monomer 13 is high-quality silicon steel sheets, which are made by high-precision progressive die stamping;

[0039] The winding part 14 and the splicing part 15 are directly placed in the injection mold after preheating. A nylon plastic coating layer with a thickness of 0.55 mm is wrapped on the outside of the winding part 14. Wire grooves are provided on both sides of the plastic coating layer to play the role of insulation and line stabilization. The withstand voltage test can reach DC3600V, and the leakage current is 0.5mA without breakdown. The insulation stability is better. Compared with the conventional iron core winding part 14 which adopts insulating paper insulation, this structure has higher withstand voltage, better insulation effect, and is more stable, so that the enameled wire after winding is not easy to be displaced or squeezed.

[0040] like Figure 6 As shown, a tenon groove 18 is provided at one end of the splicing portion 15, and a tenon 19 is fixedly connected to one end of the splicing portion 15 away from the tenon groove 18, and the tenon 19 can slide in the tenon groove 18. A T-shaped groove 16 is provided at the top of the splicing portion 15, and the length of the T-shaped groove 16 extending to the tenon 19 side is greater than the length extending to the tenon groove 18 side;

[0041] like Figure 1 to Figure 2 As shown, support seats 5 are fixedly connected to both ends of the slide rail 1, and the slide rail 1 is used to carry and guide the moving parts. The two ends are fixedly connected by the support seats 5 to ensure the stability and support strength of the slide rail 1. Cover plates 6 are fixedly connected to the tops of the two support seats 5. The slide seats 10 extend from both sides of the cover plates 6 to the top thereof. The support seats 5 are used to fix the two ends of the slide rail 1 to ensure the stable support of the slide rail 1. The top of the support seats 5 is fixedly connected to the cover plates 6 to form a closed structure to protect the internal components and provide a better appearance effect. Plastic end caps 7 are also provided on the outsides of the two support seats 5. Plastic end caps 7 are provided on the outsides of the support seats 5 to shield and protect the ends of the support seats 5, thereby increasing the safety and aesthetics of the device. Two buffers 8 are respectively provided at the two ends of the inner side of the slide rail 1. The buffers 8 are provided at the two ends of the inner side of the slide rail 1, and two buffers 8 are provided at each end, for a total of four buffers 8. The function of the buffers 8 is to absorb the impact energy when the moving parts reach the end of the stroke, reduce the impact sound, and improve the stability and service life of the device. The buffers 8 can effectively reduce the vibration and noise of the moving parts at the end of the stroke, thereby improving the use experience of the device.

[0042] The plastic end cap is made of a material with electromagnetic shielding properties, such as a plastic material with a shielding layer added to reduce the impact of external electromagnetic interference;

[0043] Using nylon plastic coating to improve the insulation performance of the winding part can reduce internal electromagnetic interference;

[0044] By forming a closed structure between the slide rail and the cover plate, and using metal materials or non-metallic materials with added shielding layers as part of the cover plate and the supporting structure, effective shielding of electromagnetic waves can be achieved. Electromagnetic shielding can block external electromagnetic fields from entering the interior of the motor, and also reduces the possibility of electromagnetic waves generated inside the motor propagating outward, thereby significantly reducing the impact of external electromagnetic interference on motor performance and improving the stability and reliability of the motor.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A highly integrated anti-interference permanent magnet synchronous linear motor, characterized in that: include: A slide rail (1), wherein a stator (2) is arranged at the top of the slide rail (1); Two sliders (9) slide on both sides of the top of the slide rail (1) respectively. The two sliders (9) are directly provided with a slide seat (10). A mover (11) is provided at the bottom of the slide seat (10). The mover (11) is located at the upper end of the stator (2). The mover (11) includes a shell (12). A plurality of iron core monomers (13) are arranged end to end along a straight line. The iron core monomers (13) include a winding portion (14) and a splicing portion (15). The top of the winding portion (14) is fixedly connected to the splicing portion (15). A tenon groove (18) is provided at one end of the splicing part (15), a tenon (19) is fixedly connected to one end of the splicing part (15) away from the tenon groove (18), and the tenon (19) can slide in the tenon groove (18). A T-shaped bar (17) is provided on the top of the splicing part (15), and the length of the T-shaped bar (17) extending to the tenon (19) side is greater than the length extending to the tenon groove (18) side. A plurality of T-shaped slots (16) are provided on the top of the T-shaped bar (17), and at least two T-shaped slots (16) are connected to the housing (12) and the sliding seat (10) in sequence by bolts.

2. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 1 is characterized in that: The winding portion (14) and the splicing portion (15) are arranged in an integrated manner.

3. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 2 is characterized in that: A nylon plastic coating layer is provided on the outer side of the winding portion (14).

4. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 3 is characterized in that: The stator (2) comprises a yoke plate (3) and a plurality of magnetic steels (4), wherein the plurality of magnetic steels (4) are arranged on the yoke plate (3) at equal intervals and in an inclined manner.

5. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 4 is characterized in that: The length direction of the magnetic steel (4) and the length direction of the yoke plate (3) form an angle of no more than degrees.

6. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 5 is characterized in that: The two ends of the slide rail (1) are respectively fixedly connected to support seats (5), the tops of the two support seats (5) are fixedly connected to cover plates (6), and the slide seat (10) extends from both sides of the cover plate (6) to the top thereof.

7. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 6 is characterized in that: Plastic end covers (7) are also provided on the outer sides of the two support seats (5).

8. The highly integrated anti-interference permanent magnet linear synchronous motor according to claim 7 is characterized in that: Two buffers (8) are respectively arranged at the two ends of the inner side of the slide rail (1).

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