A rotor magnet arrangement of a permanent magnet synchronous motor

Abstract

The utility model discloses a rotor magnetic steel placing structure of permanent magnet synchronous motor convenient to transport relates to mechanical technical field has the advantage that both can store and transport magnetic steel, and can safely and efficiently automatic separation magnetic steel, and its technical scheme main points are: including base, the inside of base is provided with the accommodating groove of extending along the front -back direction, the accommodating groove is placed with a plurality of magnetic steel and the septum, each magnetic steel and septum are alternately spaced and arranged in the accommodating groove, the front side of base is fixed with a support, and the through hole of communicating with the accommodating groove is penetrated in the support, the rear side of base is equipped with the push -off component of moving all magnetic steel and septum to the direction of support direction, and the separation component of making the first magnetic steel of the most front direction to separate the septum of subsequent magnetic steel is equipped on the support.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a rotor magnet placement structure for a permanent magnet synchronous motor that is easy to transport. Background Technology

[0002] A permanent magnet synchronous motor (PMSM) is an electric motor that uses permanent magnets to generate a magnetic field. By passing three-phase alternating current through the stator windings, a rotating magnetic field is produced, which in turn drives the rotor to rotate synchronously. The rotor of a PMSM is composed of permanent magnets (magnetic steel), while the stator is an electromagnet composed of energized coils. When alternating current is passed through the stator coils, a rotating magnetic field is generated. This magnetic field interacts with the magnetic field of the rotor's permanent magnets, causing the rotor to rotate synchronously. Magnets are the core components of permanent magnet synchronous motors. They are usually made of permanent magnet materials such as neodymium iron boron and have the characteristics of high remanence and high coercivity. Common shapes include rectangular, tile-shaped, and sector-shaped. The installation of magnets in traditional permanent magnet synchronous motors mainly relies on manual labor. Operators need to pick up and place magnets and spacers one by one and accurately embed them into the rotor slots.

[0003] Currently, during motor assembly, operators need to take magnets one by one from the factory packaging and insert them into the rotor slots alternately and precisely with the spacers. However, for ease of packaging and transportation, magnets are often arranged in a tightly adsorbed row with alternating N and S poles when they leave the factory. What the motor rotor actually requires is a tight arrangement of magnetic poles in the same direction (i.e., all N poles or S poles are facing the same direction). At this time, adjacent magnets generate strong repulsive forces due to the same polarity, making it extremely difficult for manual separation, picking, and positioning of magnets. This not only results in low efficiency and easy damage to magnets due to unstable operation, but also poses a risk of pinching injuries, affecting assembly quality, production safety, and overall efficiency. Summary of the Invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a rotor magnet placement structure for a permanent magnet synchronous motor that is convenient for transportation, and has the advantages of both storing and transporting magnets and automatically separating magnets safely and efficiently.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a rotor magnet placement structure for a permanent magnet synchronous motor that is easy to transport. It includes a base, and the base has a receiving groove extending in the front-to-back direction. Several magnets and spacers are placed in the receiving groove. The magnets and spacers are arranged alternately in the receiving groove. A bracket is fixed to the front side of the base, and a through hole communicating with the receiving groove is passed through the bracket. The base is provided with a push assembly on the rear side to move all the magnets and spacers toward the support. The support is equipped with a separation component that separates the foremost magnet from the subsequent magnets and the spacer.

[0006] By adopting the above technical solution, the magnets and partitions are arranged in an orderly manner in the receiving groove through the cooperation of the base and the receiving groove, so as to facilitate the transportation and storage of the magnets, promote the continuous feeding of the components, and the separation components can automatically separate the magnets one by one, reduce manual intervention, improve assembly speed, and adapt to the rhythm of assembly line production.

[0007] Preferably, the pushing assembly includes a slider disposed in and slidably connected to the receiving groove, and the front surface of the slider contacts the magnet and the spacer located at the rear end; a bent spring mounting portion extends rearward from the top of the slider, and the spring mounting portion is connected to the bracket by a tension spring, which is located above the base.

[0008] Preferably, both sides of the upper surface of the base are bent inward to form an anti-detachment plate, which is located above the slider, magnet and partition.

[0009] Preferably, the separation assembly includes a pair of vertical slides disposed opposite to each other and fixed to the front side of the bracket and a slide plate, the two sides of the slide plate slidingly engaging with the slides, and a push plate fixed to the lower surface of the slide plate; the separation assembly also includes an operating lever located above the bracket, the two ends of the operating lever being fixedly connected to movable rods, the bottom end of the movable rod being hinged to the bottom end of the slide, and the movable rod being hinged to the slide plate via a connecting rod.

[0010] Preferably, a mounting plate is fixed to the front side of the bracket, and a gap is maintained between the mounting plate and the bracket. This gap forms a vertical guide groove. The upper end of the guide groove communicates with the through hole on the bracket, and its lower end is open. Furthermore, the width of the guide groove matches the thickness of a single magnet and spacer assembly, and is located directly below the push plate.

[0011] Preferably, the base, bracket, slider, mounting plate and push plate are all made of non-magnetic materials, and their surfaces are coated with a wear-resistant or self-lubricating non-metallic coating.

[0012] The beneficial effects of this utility model are as follows: the cooperation between the base and the receiving groove allows the magnets and partitions to be arranged in an orderly manner in the receiving groove, so as to facilitate the transportation and storage of the magnets, promote the continuous feeding of the push assembly, and enable the separation assembly to automatically separate the magnets one by one, reduce manual intervention, improve assembly speed, and adapt to the rhythm of assembly line production. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This embodiment Figure 1 Enlarged structural diagram at point A; Figure 3 This is a top view of the overall structure of this embodiment; Figure 4 This is a schematic diagram illustrating the structure of the slider in this embodiment.

[0015] Explanation of reference numerals in the attached figures: In the diagram: 1. Base; 2. Receiving groove; 3. Magnet; 4. Partition; 5. Bracket; 6. Slider; 7. Spring mounting part; 8. Tension spring; 9. Anti-detachment plate; 10. Slide rail; 11. Slide plate; 12. Push plate; 13. Operating lever; 14. Movable rod; 15. Connecting rod; 16. Mounting plate; 17. Guide groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] A rotor magnet placement structure for a permanent magnet synchronous motor that facilitates transportation, such as... Figures 1-4 The base includes a base 1, and a receiving groove 2 extending in the front-to-back direction is provided inside the base 1. Several magnets 3 and partitions 4 are placed in the receiving groove 2. The magnets 3 and partitions 4 are arranged alternately in the receiving groove 2. A bracket 5 is fixed on the front side of the base 1. A through hole communicating with the receiving groove 2 is passed through the bracket 5. The rear side of the base 1 is provided with a push assembly that pushes all the magnets 3 and the partition 4 toward the bracket 5; The bracket 5 is equipped with a separation component that separates the foremost magnet 3 from the subsequent magnets 3 and the spacer 4.

[0018] In the above design, the magnets 3 and the partitions 4 are arranged in an orderly manner in the receiving groove 2 through the cooperation of the base 1 and the receiving groove 2, so as to facilitate the transportation and storage of the magnets 3, promote the continuous feeding of the component, and the separation component can automatically separate the magnets 3 one by one, reduce manual intervention, improve the assembly speed, and adapt to the rhythm of assembly line production.

[0019] like Figure 1 and Figure 3 and Figure 4 The pushing component includes a slider 6 disposed in and slidably connected to the receiving groove 2. The slider 6 is slidably connected to the groove wall of the receiving groove 2 via a slide rail, and the front surface of the slider 6 contacts the magnet 3 and the spacer 4 located at the rear end. A bent spring mounting part 7 extends rearward from the top of the slider 6. The spring mounting part 7 is connected to the bracket 5 via a tension spring 8, which is located above the base 1.

[0020] The tension spring 8 is in a stretched or compressed state in its natural state, thereby providing a continuous forward elastic thrust to the slider 6, so that the magnet 3 and the spacer 4 move forward stably and remain closely arranged in the receiving groove 2, while avoiding collision or jamming of the magnet 3 when it separates due to excessive instantaneous thrust.

[0021] like Figure 3 As shown, both sides of the upper surface of the base 1 bend inward to form an anti-detachment plate 9, which is located above the slider 6, magnet 3, and partition 4. By setting the anti-detachment plate 9, the placement and movement of the slider 6, magnet 3, and partition 4 are not affected, and the slider 6, magnet 3, and partition 4 are prevented from detaching from the base 1 during sliding.

[0022] The separation assembly includes a pair of vertical slide rails 10 that are oppositely arranged and fixed to the front side of the bracket 5 and a slide plate 11. The two sides of the slide plate 11 are slidably engaged with the slide rails 10, and a push plate 12 is fixed on the lower surface of the slide plate 11. The separation assembly also includes an operating lever 13 located above the bracket 5. The two ends of the operating lever 13 are fixedly connected to movable rods 14. The bottom end of the movable rod 14 is hinged to the bottom end of the slide rail 10, and the movable rod 14 and the slide plate 11 are hinged to each other through a connecting rod 15.

[0023] The movable rod 14, connecting rod 15 and operating pull rod 13 form a transmission mechanism. Together with the slide rail 10 and sliding plate 11, when the operating pull rod 13 is pressed down, the push plate 12 can move downward smoothly and vertically, overcoming the strong attraction or repulsion between the magnets 3, and pushing out the foremost magnet 3, separating it from the rear queue, thus avoiding the difficulties and safety hazards of manual separation.

[0024] like Figure 1As shown, a mounting plate 16 is fixed to the front side of the bracket 5. A gap is maintained between the mounting plate 16 and the bracket 5, forming a vertical guide groove 17. The upper end of the guide groove 17 communicates with the through hole on the bracket 5, and its lower end is open. The width of the guide groove 17 matches the thickness of the combination of a single magnet 3 and the spacer 4, and it is located directly below the push plate 12. Through the vertical guide groove 17 formed by the mounting plate 16 and the bracket 5, a precise and restricted linear motion channel is provided for the pushed magnet 3, ensuring that the trajectory of the magnet 3 is stable and directional is unique during the separation process, effectively preventing separation failure or component damage caused by the magnet 3 being tilted, flipped, or jammed.

[0025] The base 1, bracket 5, slider 6, mounting plate 16, push plate 12, and other components are all made of non-magnetic materials, and their surfaces are coated with a wear-resistant or self-lubricating non-metallic coating. By using non-magnetic materials and adding a wear-resistant lubricating layer, interference with the magnetic circuit of the permanent magnet is avoided, ensuring the accuracy of the magnetic field distribution during testing or assembly. At the same time, the wear-resistant lubrication treatment significantly reduces the frictional resistance and mechanical wear between the magnet 3 and the tank wall, slider 6, and push plate 12 during conveying and separation.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rotor magnet placement structure for a permanent magnet synchronous motor that facilitates transportation, characterized in that, Includes a base (1), the base (1) has an inner cavity with a receiving groove (2) extending in the front-back direction, a number of magnets (3) and partitions (4) are placed in the receiving groove (2), each magnet (3) and partition (4) is arranged alternately in the receiving groove (2), a bracket (5) is fixed on the front side of the base (1), and a through hole communicating with the receiving groove (2) is passed through the bracket (5); The base (1) is provided with a push assembly on the rear side to push all the magnets (3) and the partition (4) toward the bracket (5); The bracket (5) is provided with a separation component that separates the foremost magnet (3) from the subsequent magnets (3) and the spacer (4).

2. The rotor magnet placement structure of a permanent magnet synchronous motor for convenient transportation as described in claim 1, characterized in that, The pushing component includes a slider (6) disposed in the receiving groove (2) and slidably connected to the receiving groove (2), and the front surface of the slider (6) contacts the magnet (3) and the partition (4) located at the rear end; The top of the slider (6) extends backward into a bent spring mounting part (7), which is connected to the bracket (5) by a tension spring (8) located above the base (1).

3. The rotor magnet placement structure of a permanent magnet synchronous motor for convenient transportation as described in claim 2, characterized in that, The upper surface of the base (1) is bent inward on both sides to form an anti-detachment plate (9), which is located above the slider (6), magnet (3) and partition (4).

4. The rotor magnet placement structure of a permanent magnet synchronous motor for convenient transportation as described in claim 1, characterized in that, The separation assembly includes a pair of vertical slides (10) arranged opposite to each other and fixed to the front side of the bracket (5) and a slide plate (11). The two sides of the slide plate (11) are slidably engaged with the slides (10), and a push plate (12) is fixed on the lower surface of the slide plate (11). The separation assembly also includes an operating lever (13) located above the bracket (5). The two ends of the operating lever (13) are fixedly connected to movable rods (14). The bottom end of the movable rod (14) is hinged to the bottom end of the slide (10). The movable rod (14) and the slide plate (11) are hinged together by a connecting rod (15).

5. The rotor magnet placement structure of a permanent magnet synchronous motor for convenient transportation as described in claim 4, characterized in that, A mounting plate (16) is fixed to the front side of the bracket (5). A gap is maintained between the mounting plate (16) and the bracket (5). The gap forms a vertical guide groove (17). The upper end of the guide groove (17) is connected to the through hole on the bracket (5), and its lower end is open. The width of the guide groove (17) matches the thickness of the combination of a single magnet (3) and a spacer (4), and is located directly below the push plate (12).

6. The rotor magnet placement structure of a permanent magnet synchronous motor for convenient transportation as described in claim 5, characterized in that, The base (1), bracket (5), mounting plate (16) and push plate (12) are all made of non-magnetic materials, and their surfaces are coated with a wear-resistant or self-lubricating non-metallic coating.

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