Electromagnetic Core Holding Mechanism for Precise Limb Clamping
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Solution Overview
Problem
Existing electromagnetic core holding mechanisms fail to securely clamp the limbs together, leading to discontinuities that disrupt magnetic flux in electromagnetic devices.
Innovation Solution
A holding mechanism with a hub and jaws that adjust radially to securely hold the limbs of an electromagnetic core, utilizing a toothed key and bevel gear system for precise adjustment and a strap or band for additional radial force, ensuring optimal contact between the limbs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple holding mechanism is used, then the device complexity is reduced, but the manufacturing precision of limb contact is insufficient
Solution Approach 1:
The holding mechanism employs adjustable jaws with radial adjustment capability through a screw mechanism, allowing the clamping position to be dynamically adjusted to match the actual limb positions. This dynamic adjustability ensures precise limb contact while maintaining a relatively simple overall structure.
Solution Approach 2:
The mechanism allows changing the radial position parameter of the jaws relative to the hub axis. By adjusting the jaw positions radially, the system adapts to variations in limb dimensions and positions, achieving precise contact without requiring a complex fixed-geometry structure.
2Device complexity
If fixed clamping is used, then the device complexity is reduced, but the magnetic flux continuity is disrupted
Solution Approach 1:
The adjustable jaw mechanism enables dynamic positioning to achieve optimal clamping that maintains magnetic flux continuity. The jaws can be positioned to clamp limbs at their precise contact points, ensuring continuous magnetic paths while keeping the mechanism relatively simple.
3Manufacturing precision
If adjustable jaws with radial movement are used, then the manufacturing precision of limb contact is improved, but the device complexity increases
Solution Approach 1:
The mechanism uses a screw-driven radial adjustment system that provides precise control over jaw positioning. This dynamic adjustment capability achieves high limb contact precision while adding minimal complexity through the use of standard mechanical components.
Solution Approach 2:
The hub and jaw assembly serves multiple functions: supporting limbs, providing radial adjustment, and maintaining clamping force. This multi-functionality reduces the need for separate components, thereby limiting the increase in overall device complexity.
4Reliability
If precise radial adjustment is implemented, then the magnetic flux continuity is enhanced, but the ease of operation is reduced
Solution Approach 1:
The screw mechanism provides self-adjusting capability where the operator can directly control the radial position of jaws by rotating the screw. This self-service adjustment method enhances magnetic flux continuity while maintaining ease of operation through intuitive manual control.
Data Source
Figure 1A~1C
Figure 2A
Figure 2B~2C
AI summary
There is provided a holding mechanism for an electromagnetic core which has a predetermined number of limbs, e.g. three limbs, arranged around a central axis. The holding mechanism comprises a hub having an axis. The hub comprises a plurality of apertures corresponding to the predetermined number of limbs of the electromagnetic core, i.e. an aperture in the hub per limb of the electromagnetic core. Each of the apertures is configured to receive an end portion of a respective limb radially around the axis. The axis of the hub is coincident with the central axis of the electromagnetic core when the predetermined number of limbs of the electromagnetic core are received in the plurality of apertures. The holding mechanism comprises a plurality of jaws corresponding to the predetermined number of limbs, i.e. a jaw per limb of the electromagnetic core. Each of the jaws is configured to retain the end portion of a respective limb in a respective aperture when the predetermined number of limbs are received in the plurality of apertures. The holding mechanism comprises an adjustment mechanism configured to adjustably move the plurality of jaws in a radial direction with respect to the axis of the hub. Accordingly, when the predetermined number of limbs are received in the plurality of apertures, adjustment of the adjustment mechanism causes each limb to move radially towards or away from the axis of the hub, and hence the central axis of the electromagnetic core.