A brushless coreless linear motor with large continuous thrust

By combining a U-shaped heat dissipation condenser pipe with a water-cooling device and a corrugated pipe cable protection design, the heat dissipation and cable damage problems of brushless coreless linear motors during high thrust operation are solved, achieving stable operation and efficient energy conversion, and adapting to complex environments.

CN224538024UActive Publication Date: 2026-07-21SHENZHEN TAID PRECISION MECHANICAL & ELECTRICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN TAID PRECISION MECHANICAL & ELECTRICAL CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing brushless coreless linear motors suffer from inadequate heat dissipation during high-thrust operation, leading to temperature rise, coil insulation aging, magnetic attenuation, and easy damage to connecting harnesses. They are also susceptible to corrosion in complex environments, making it difficult to meet the stringent requirements of industrial scenarios.

Method used

The heat dissipation system adopts a combination of U-shaped heat dissipation condenser tubes and water cooling equipment. It quickly transfers heat through a thermally conductive silicone layer, and the corrugated pipe protects the cables to prevent dust and moisture intrusion, ensuring the reliability of the power connection. The permanent magnet array design between the mover and stator provides continuous thrust.

Benefits of technology

It achieves stable operation under high continuous thrust, improves energy conversion efficiency, prevents coil and cable damage, adapts to complex environments, and meets industrial needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to linear drive equipment technical field especially relates to a kind of brushless coreless linear motor with big sustained thrust.The technical scheme includes: stator frame, connecting piece, stator, mobile frame, push plate, connecting wire harness and other structures, stator is fixed in stator frame by connecting piece and forms stable magnetic field, coil assembly in mobile frame is driven by sustained electromagnetic force in magnetic field after alternating current is passed, and linear thrust is output by push plate;The limit groove of stator frame cooperates with the limit block of mobile frame to realize orientation and limit, simultaneously, mobile frame is built-in U-shaped radiating condenser pipe, coil heat is efficiently transferred by heat-conducting silicone layer, and radiating is realized by cooperating external water cooling equipment, connecting wire harness is covered by bellows and equipped with waterproof aviation plug, guarantee circuit safety and stable power supply, reduce loss by coreless design, strengthen radiating system control temperature rise, optimize structure and improve reliability, and big sustained thrust can be provided.
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