Ultrahigh acceleration cylindrical linear motor

Abstract

The application relates to the field of motors and discloses an ultrahigh-acceleration cylindrical linear motor which comprises a stator and a mover; the stator comprises a left fixed frame, a right fixed frame, a plurality of magnet rings, a plurality of magnetic conductive rings and a screw rod; the left fixed frame is fixed at one end of the screw rod, the right fixed frame is fixed at the other end of the screw rod, the plurality of magnet rings and the plurality of screw rods are sequentially and alternately sleeved on the screw rod along the length direction of the screw rod, the plurality of magnet rings are axially magnetized, and the N and S poles of the plurality of sequentially-arranged magnet rings are alternately arranged; the mover comprises a carbon fiber plate, a left carbon fiber ring and a right carbon fiber ring arranged at two ends of the carbon fiber plate and a plurality of groups of coils arranged between the left carbon fiber ring and the right carbon fiber ring, and the left carbon fiber ring, the coils and the right carbon fiber ring are slidably sleeved on the outer periphery of the stator. The thrust density of the ultrahigh-acceleration cylindrical linear motor is improved, the carbon fiber material has good strength and rigidity, and the carbon fiber material can withstand acceleration of more than 20 times of gravity acceleration for movement.

Description

Technical Field

[0001] This invention relates to the technical field of electric motors, and in particular to an ultra-high acceleration cylindrical linear motor. Background Technology

[0002] A linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. A linear motor can be considered a structural variation of a rotary motor; it can be viewed as a rotary motor cut along its radial direction and then flattened. Linear motors are now widely used in various application areas and occasions, such as subways, maglev trains, machining centers, automated production lines, and direct-drive elevators. However, in current technology, commonly used linear motors have low thrust density and relatively low acceleration, reaching a maximum of only 10 times the force of gravity; the strength and rigidity of commonly used linear motors are also relatively weak and cannot withstand accelerations exceeding 20 times the force of gravity. Summary of the Invention

[0003] The purpose of this invention is to provide an ultra-high acceleration cylindrical linear motor, which aims to solve the problem of low thrust density in existing linear motors.

[0004] In a first aspect, this application provides an ultra-high acceleration cylindrical linear motor, including a stator and a mover; the stator includes a left fixed frame, a right fixed frame, multiple magnet rings, multiple magnetic guide rings, and a screw; the left fixed frame is fixed to one end of the screw, the right fixed frame is fixed to the other end of the screw, and along the length direction of the screw, multiple magnet rings and multiple screws are sequentially and alternately sleeved on the screw, the multiple magnet rings are axially magnetized, and the N and S poles of the multiple sequentially arranged magnet rings are alternately arranged; the mover includes a carbon fiber plate, a left carbon fiber ring and a right carbon fiber ring disposed at both ends of the carbon fiber plate, and multiple sets of coils disposed between the left carbon fiber ring and the right carbon fiber ring, the left carbon fiber ring, the multiple sets of coils, and the right carbon fiber ring are slidably sleeved on the outer periphery of the stator.

[0005] Furthermore, the stator also includes an upper magnetic yoke and a lower magnetic yoke. The upper magnetic yoke is disposed above the mover, and its two ends are respectively fixed to the left fixed frame and the right fixed frame. The lower magnetic yoke is disposed below the mover, and its two ends are respectively fixed to the left fixed frame and the right fixed frame.

[0006] Furthermore, the upper magnetic yoke is fixedly connected to the left fixing frame by screws, and the upper magnetic yoke is fixedly connected to the right fixing frame by screws.

[0007] Furthermore, the lower magnetic yoke is fixedly connected to the left fixing frame by screws, and the lower magnetic yoke is fixedly connected to the right fixing frame by screws.

[0008] Furthermore, one side of the upper magnetic yoke is arranged in close contact with one side of the lower magnetic yoke, and the other side of the upper magnetic yoke is arranged at an interval to form a gap with the other side of the lower magnetic yoke, through which the carbon fiber plate passes.

[0009] Furthermore, one side of the upper magnetic yoke and one side of the lower magnetic yoke are fixedly connected by screws.

[0010] Furthermore, the carbon fiber plate, left carbon fiber ring, right carbon fiber ring, and multiple sets of coils are encapsulated and cured into a whole using epoxy resin.

[0011] Compared with existing technologies, the ultra-high acceleration cylindrical linear motor provided above, through the arrangement of the stator and mover, generates a magnetic field when the coil is energized. The magnetic field generated by the energized coil and the magnetic field of the stator will form a force, driving the mover to move linearly. Through the above-mentioned structural arrangement and the use of carbon fiber material for the carbon fiber plate, left carbon fiber ring and right carbon fiber ring, the thrust density of the linear motor is greatly improved. At the same time, the carbon fiber material has good strength and rigidity and can withstand acceleration of more than 20 gravitational accelerations. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of an ultra-high acceleration cylindrical linear motor provided in an embodiment of the present invention;

[0013] Figure 2 This is a front view of an ultra-high acceleration cylindrical linear motor provided in an embodiment of the present invention;

[0014] Figure 3 This is provided by the embodiments of the present invention. Figure 2 Schematic diagram of cross section in the AA direction. Detailed Implementation

[0015] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] Reference Figure 1-3A high-acceleration cylindrical linear motor includes a stator and a mover. The stator includes a left fixed frame 1, a right fixed frame 9, multiple magnet rings 7, multiple magnetic guide rings 8, and a screw 11. The left fixed frame 1 is fixed to one end of the screw 11, and the right fixed frame 9 is fixed to the other end of the screw 11. Along the length of the screw 11, multiple magnet rings 7 and multiple screws 11 are sequentially and alternately sleeved on the screw 11. The multiple magnet rings 7 are axially magnetized, and the N and S poles of the multiple sequentially arranged magnet rings 7 are alternately arranged. The mover includes a carbon fiber plate 4, a left carbon fiber ring 3 and a right carbon fiber ring 5 disposed at both ends of the carbon fiber plate 4, and multiple sets of coils 6 disposed between the left carbon fiber ring 3 and the right carbon fiber ring 5. The left carbon fiber ring 3, the multiple sets of coils 6, and the right carbon fiber ring 5 are slidably sleeved on the outer periphery of the stator.

[0022] The ultra-high acceleration cylindrical linear motor provided above, through the arrangement of the stator and mover, the coil 6 will generate a magnetic field after being energized. The magnetic field generated by the energized coil 6 will form a force with the magnetic field of the stator, driving the mover to linear motion. Through the above structural arrangement and the use of carbon fiber material for carbon fiber plate 4, left carbon fiber ring 3 and right carbon fiber ring 5, the thrust density of the linear motor is greatly improved. At the same time, carbon fiber material has good strength and rigidity and can withstand acceleration of more than 20 gravitational accelerations.

[0023] In one specific embodiment of this application, the stator further includes an upper magnetic yoke 2 and a lower magnetic yoke 10. The upper magnetic yoke 2 is disposed above the mover, and its two ends are respectively fixed to the left fixed frame 1 and the right fixed frame 9. The lower magnetic yoke 10 is disposed below the mover, and its two ends are respectively fixed to the left fixed frame 1 and the right fixed frame 9. The upper magnetic yoke 2 and the lower magnetic yoke 10 can protect the mover.

[0024] Specifically, the upper magnetic yoke 2 is fixedly connected to the left fixing frame 1 by screws, and the upper magnetic yoke 2 is fixedly connected to the right fixing frame 9 by screws; this connection method is simple to operate and the connection is firm.

[0025] Specifically, the lower magnetic yoke 10 is fixedly connected to the left fixing frame 1 by screws, and the lower magnetic yoke 10 is fixedly connected to the right fixing frame 9 by screws; this connection method is simple to operate and the connection is firm.

[0026] It should be noted that one side of the upper magnetic yoke 2 is fitted to one side of the lower magnetic yoke 10, and the other side of the upper magnetic yoke 2 is spaced apart from the other side of the lower magnetic yoke 10 to form a gap. The carbon fiber plate 4 passes through the gap. In this way, the carbon fiber plate 4 can move linearly. The carbon fiber plate 4 passing through the gap facilitates the use of the linear motor. The component is fixedly connected to the carbon fiber plate 4 passing through the gap, thereby realizing the linear motor driving the component to move linearly.

[0027] In one specific embodiment of this application, one side of the upper magnetic yoke 2 and one side of the lower magnetic yoke 10 are fixedly connected by screws; this connection method is simple to operate and the connection is firm.

[0028] Preferably, to facilitate the installation of the mover, the carbon fiber plate 4, the left carbon fiber ring 3, the right carbon fiber ring 5, and the multiple sets of coils 6 are encapsulated and cured into a whole by epoxy resin.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-acceleration cylindrical linear motor, characterized in that, The device includes a stator and a mover. The stator includes a left fixed frame, a right fixed frame, multiple magnet rings, multiple magnetic guide rings, and a screw. The left fixed frame is fixed to one end of the screw, and the right fixed frame is fixed to the other end of the screw. Along the length of the screw, multiple magnet rings and multiple screws are sequentially and alternately sleeved on the screw. The multiple magnet rings are axially magnetized, and the N and S poles of the sequentially arranged magnet rings are alternately arranged. The mover includes a carbon fiber plate, a left carbon fiber ring and a right carbon fiber ring disposed at both ends of the carbon fiber plate, and multiple sets of coils disposed between the left carbon fiber ring and the right carbon fiber ring. The left carbon fiber ring, the multiple sets of coils, and the right carbon fiber ring are slidably sleeved on the outer periphery of the stator. The stator further includes an upper magnetic yoke and a lower magnetic yoke. The upper magnetic yoke is disposed above the mover, and its two ends are respectively fixed to the left fixed frame and the right fixed frame. The lower magnetic yoke is disposed below the mover, and its two ends are respectively fixed to the left fixed frame and the right fixed frame. The upper magnetic yoke is fixedly connected to the left fixing frame by screws, and the upper magnetic yoke is fixedly connected to the right fixing frame by screws; The lower magnetic yoke is fixedly connected to the left fixing frame by screws, and the lower magnetic yoke is fixedly connected to the right fixing frame by screws; One side of the upper magnetic yoke is fitted to one side of the lower magnetic yoke, and the other side of the upper magnetic yoke is spaced apart from the other side of the lower magnetic yoke to form a gap, through which the carbon fiber plate passes; One side of the upper magnetic yoke and one side of the lower magnetic yoke are fixedly connected by screws.

2. The ultra-high acceleration cylindrical linear motor according to claim 1, characterized in that, The carbon fiber plate, left carbon fiber ring, right carbon fiber ring, and multiple sets of coils are encapsulated and cured into a whole with epoxy resin.

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