A high thrust density electromagnetic actuator for nanosatellite deployer

An electromagnetic actuator, high-thrust technology, applied in the aerospace field, can solve the problem of difficult to achieve repeated and precise release of nano-satellites, and achieve the effects of reducing axial and radial dimensions, uniform magnetic field distribution, and suppressing thrust fluctuations

Active Publication Date: 2022-08-02
HARBIN INST OF TECH
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Problems solved by technology

However, traditional deployers mostly use compression springs, which makes it difficult to achieve repeatable and accurate release of nano-satellites.

Method used

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  • A high thrust density electromagnetic actuator for nanosatellite deployer
  • A high thrust density electromagnetic actuator for nanosatellite deployer
  • A high thrust density electromagnetic actuator for nanosatellite deployer

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specific Embodiment approach 1

[0024] Specific implementation mode 1: see Figure 1-5 This embodiment will be described.

[0025] figure 1 It is a radial cross-sectional view of the electromagnetic actuator of the technical solution of the present invention, which is mainly composed of a stator and a mover. It is characterized in that, the stator mainly includes: a stator frame 1, an outer magnetic yoke 2, an outer magnetic ring 3, and an outer upper magnetic ring. 4A, outer lower magnetic ring 4B, outer upper magnetic yoke 5, outer lock nut 6, inner magnetic yoke 7, inner magnetic ring 8, inner upper magnetic ring 9A, inner lower magnetic ring 9B, inner upper magnetic yoke 10, inner lock nut 11 and the end yoke 12; the mover mainly includes: a coil bobbin 13 and a toroidal coil 14; the outer yoke 2 is located on the radial inner side of the outer wall of the groove of the stator frame 1, and the outer magnetic ring 3 is located in the outer yoke 2 The radial inner center position of the outer upper magne...

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Abstract

The invention proposes a high-thrust-density electromagnetic actuator for a nano-satellite deployer, which is mainly composed of a stator and a mover. The stator mainly includes: a stator frame, a magnetic yoke, a magnetic ring and a lock nut; the mover mainly includes: a coil Skeleton and coil. The invention forms upper and lower double permanent magnetic branch magnetic fluxes on the single-layer magnetic pole, realizes the shunting of the permanent magnetic flux, effectively relieves the magnetic saturation of the magnetic yoke, reduces the thickness of the magnetic yoke, and has a single-layer magnetic pole and single-layer coil configuration. The axial size and volume mass of the actuator are reduced; the double permanent magnet branch circuit improves the air gap magnetic field distribution, reduces the thrust fluctuation and increases the thrust density. The invention has the characteristics of small size, light weight, high thrust density and stable thrust, and is very suitable for the deployer to release the nano-satellite on-orbit speed.

Description

technical field [0001] The invention relates to a high thrust density electromagnetic actuator for a nano-satellite deployer, belonging to the technical field of aerospace. Background technique [0002] The coordinated work of multiple satellites to complete complex space exploration missions has become a research hotspot in the international aerospace field, such as formations and clusters. In particular, nanosatellites have the advantages of short development cycle and low cost, and the clusters formed by them have high flexibility and robustness, and can complete tasks that large satellites cannot complete independently or require high costs. For on-orbit deployment of nanosatellites, in order to save costs, deployers are often used to store and release a large number of nanosatellites in orbit in one launch mission. Because nanosatellites have weak orbit control capability and limited fuel, it is expected that the speed, timing and angle of the ejection nanosatellites c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K33/18
CPCH02K33/18
Inventor 岳洪浩赵勇杨飞陆一凡吴君余运锋阮琪
Owner HARBIN INST OF TECH
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