Linear induction motor with honeycomb sandwich structure and aircraft

Abstract

The invention relates to the technical field of linear motors, and discloses a linear induction motor with a honeycomb sandwich structure and an aircraft. The motor comprises a mover, a stator ground winding and stator supporting pieces, the stator supporting pieces are oppositely arranged on the ground, the stator ground winding is arranged on the stator supporting pieces, and the mover is arranged in the middle of the bottom of the tackle. The rotor is located between the stator ground windings and does not make contact with the stator ground windings. The rotor comprises a left rotor metal plate, a right rotor metal plate and a rotor honeycomb interlayer arranged between the left rotor metal plate and the right rotor metal plate. Therefore, while the mass of the rotor is reduced, the thrust-weight ratio of the linear induction motor system is increased, the modal frequency of the rotor is further improved, and resonance is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motors, and particularly to a linear induction motor with a honeycomb sandwich structure and a vehicle Background Art

[0002] A linear induction motor can linearly accelerate an object along its stator track to a high speed, and has wide applications in fields such as electromagnetic boost launch of carrier rockets, electromagnetic catapult of unmanned aerial vehicles, electromagnetic gun launch, and electromagnetic underwater catapult of unmanned submarines.

[0003] Normally, the mover of a linear induction motor is a flat thin plate structure. As the mass of the object to be accelerated increases, the thrust provided by the linear induction motor is required to increase, and then the size of the mover flat plate structure of the linear induction motor is required to increase. When the size of the mover of the linear induction motor is too large, first, the mass of the mover increases, resulting in a decrease in the thrust-to-weight ratio of the linear induction motor system; second, the modal frequency of the mover flat plate structure decreases, and it is extremely easy to generate resonance and even cause structural damage. Summary of the Invention

[0004] The present invention provides a linear induction motor with a honeycomb sandwich structure and a vehicle, which can solve the technical problems in the prior art.

[0005] The present invention provides a linear induction motor with a honeycomb sandwich structure. The motor includes a mover, a stator ground winding, and a stator support. The stator support is disposed on the ground in a relative manner. The stator ground winding is disposed on the stator support. The mover is disposed at the middle position of the bottom of a trolley. The mover is located between the stator ground windings and does not contact the stator ground windings. The mover includes a left mover metal plate, a right mover metal plate, and a mover honeycomb sandwich disposed between the left mover metal plate and the right mover metal plate.

[0006] Preferably, a stator chute is provided at the ground position between the stator ground windings. A slider is provided at the bottom of the mover. When the trolley moves along the surface of the stator support through trolley rollers provided on both sides of the bottom, the slider slides in the stator chute.

[0007] Preferably, the material of the mover honeycomb sandwich is aluminum alloy, titanium alloy, stainless steel, carbon fiber or glass fiber.

[0008] Preferably, the materials of the left mover metal plate and the right mover metal plate are aluminum alloy, titanium alloy or stainless steel.

[0009] Preferably, the material of the slider is polytetrafluoroethylene.

[0010] The present invention also provides a vehicle, which includes the linear induction motor with a honeycomb sandwich structure as described above.

[0011] Through the above technical solution, the mover plate can be set to three layers, with the middle layer being a honeycomb sandwich. Thus, while reducing the mass of the mover, the thrust-to-weight ratio of the linear induction motor system can be increased, thereby increasing the mover modal frequency and avoiding resonance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings included herein are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the specification. They are used to illustrate the embodiments of the present invention and, together with the written description, to explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0013] Figure 1 FIG. shows a cross-sectional view of a linear induction motor with a honeycomb sandwich structure according to an embodiment of the present invention;

[0014] Figure 2 FIG. shows a perspective view of a linear induction motor with a honeycomb sandwich structure according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0018] Figure 1 A cross-sectional view of a linear induction motor having a honeycomb sandwich structure according to an embodiment of the present invention is shown.

[0019] As Figure 1 shown, an embodiment of the present invention provides a linear induction motor having a honeycomb sandwich structure, wherein the motor includes a mover, a stator ground winding 4, and a stator support 5. The stator support 5 is disposed on the ground in a relative manner. The stator ground winding 4 is disposed on the stator support 5. The mover is disposed at the middle position of the bottom of the trolley 21. The mover is located between the stator ground windings 4 and does not contact the stator ground winding 4. The mover includes a left mover metal plate 11, a right mover metal plate 13, and a mover honeycomb sandwich 12 disposed between the left mover metal plate 11 and the right mover metal plate 13.

[0020] Through the above technical solution, the mover flat plate can be set to three layers, with the middle layer being a honeycomb sandwich. Thereby, while reducing the mass of the mover, the thrust-to-weight ratio of the linear induction motor system can be increased, and further, the mover modal frequency can be increased to avoid resonance.

[0021] According to an embodiment of the present invention, a stator chute 6 is provided at the ground position between the stator ground windings 4. A slider 3 is provided at the bottom of the mover. When the trolley 21 moves along the surface of the stator support 5 through the trolley rollers 22 provided on both sides of the bottom, the slider 3 slides in the stator chute 6.

[0022] Thereby, through the cooperation of the trolley, the slider, and the stator, the collision between the mover and the stator can be further avoided.

[0023] According to an embodiment of the present invention, the material of the mover honeycomb sandwich 12 is aluminum alloy, titanium alloy, stainless steel, carbon fiber, or glass fiber.

[0024] According to an embodiment of the present invention, the materials of the left mover metal plate 11 and the right mover metal plate 13 are aluminum alloy, titanium alloy or stainless steel.

[0025] According to an embodiment of the present invention, the material of the slider 3 is polytetrafluoroethylene.

[0026] Using polytetrafluoroethylene to prepare the slider can make the slider more firm and wear-resistant during the sliding friction process, and extend the service life.

[0027] Those skilled in the art should understand that the above description of materials is only exemplary, and the present invention is not limited thereto.

[0028] An embodiment of the present invention further provides a vehicle, which includes the linear induction motor with a honeycomb sandwich structure as described above.

[0029] As can be seen from the above embodiments, the linear induction motor with a honeycomb sandwich structure described in the present invention has the characteristics of high thrust-to-weight ratio, high reliability, etc., and its mover has the characteristics of light weight, high stiffness, etc.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0031] For the convenience of description, spatial relative terms such as "above...", "above...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0032] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional declaration, the above terms have no special meaning, so it should not be construed as a limitation on the protection scope of the present invention.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A linear induction motor with a honeycomb sandwich structure, characterized in that, The motor includes a rotor, a stator ground winding (4), and a stator support (5). The stator support (5) is disposed on the ground in a relative manner. The stator ground winding (4) is disposed on the stator support (5). The rotor is disposed at the middle position of the bottom of the trolley (21). The rotor is located between the stator ground windings (4) and does not contact the stator ground windings (4). The rotor includes a left rotor metal plate (11), a right rotor metal plate (13), and a rotor honeycomb sandwich (12) disposed between the left rotor metal plate (11) and the right rotor metal plate (13).

2. The motor according to claim 1, wherein A stator chute (6) is disposed at the ground position between the stator ground windings (4). A slider (3) is disposed at the bottom of the rotor. When the trolley (21) moves along the surface of the stator support (5) through trolley rollers (22) disposed on both sides of the bottom, the slider (3) slides in the stator chute (6).

3. The motor according to claim 2, wherein The material of the rotor honeycomb sandwich (12) is aluminum alloy, titanium alloy, stainless steel, carbon fiber, or glass fiber.

4. The motor according to claim 2, wherein The materials of the left rotor metal plate (11) and the right rotor metal plate (13) are aluminum alloy, titanium alloy, or stainless steel.

5. The motor according to claim 2, characterized in that, The material of the slider (3) is polytetrafluoroethylene.

6. A vehicle, characterized in that, A linear induction motor having a honeycomb sandwich structure according to any one of claims 1-5 is included.

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