Permanent-magnet-maintenance bistable execution mechanism
An actuator and bistable technology, which is applied in the field of permanent magnet bistable actuators, can solve the problems of lack of three-dimensional actuation conversion capability, low specific power density, large amount of permanent magnets, etc., and achieves fast response and structural Simple, small size effect
Inactive Publication Date: 2014-09-24
HUAZHONG UNIV OF SCI & TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, the existing permanent magnet holding bistable actuators mostly adopt a parallel magnetic circuit structure, that is, the magnetomotive force of the permanent magnet and the magnetomotive force of the coil are connected in parallel in the magnetic circuit. Compared with the series magnetic circuit, the structure is complex and the specific power density is small. The amount of permanent magnets is large, and most of them are square or short and thick cylindrical shapes, which are not suitable for applications in narrow and flat spaces, and do not have three-dimensional motion conversion capabilities
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] Combine below Figures 1 to 4 Examples further illustrate the present invention in detail.
[0018] The permanent magnet holding bistable actuator described in the present invention is as figure 1 and 3 As shown, it includes a base 1, a permanent magnet 2, an armature 3, a coil 4, a slideway 5, a shift lever 8, a travel switch 6, a reversing switch 12 and a power supply E. The base 1 includes a bottom plate, vertical walls on both sides and a central boss, and the boss is located in the middle of the two vertical walls. The permanent magnets 2 on both sides are respectively fixed on the inner sides of the left and right vertical walls of the base 1, facing each other with the same polarity. The slideway 5 is fixed on the boss of the base 1, both ends protrude from the boss, and the center line coincides with the center line of the two permanent magnets 2 basically. The armature 3 is placed in the slideway 5 . The coil 4 is wound in the same direction outside the pr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a permanent-magnet-maintenance bistable execution mechanism which adopts a series magnetic circuit and possesses a three-dimensional turning actuation function. A pedestal of the execution mechanism is made of a magnetic conductive material. Two permanent magnets are installed on inner sides of two vertical walls. A slideway is installed on a boss and an armature is arranged in the slideway. A coil, a change-over switch and a power supply are connected in series so as to form a closed loop. A driving lever is installed on a side wall of the armature and is extended through a through hole slot on the side wall of the slideway. One end of a lever in a turning actuation mechanism is provided with an opening groove. The driving lever can be slide in the opening groove. The other end of the lever is extended out of an opening of a side surface of a sleeve and contacts with a chassis of an axon. The axon can be extended out of a top hoe of the sleeve. The permanent-magnet-maintenance bistable execution mechanism adopts a series magnetic circuit structure. An amount of a permanent magnet is small. A volume is small and the permanent magnet is flattening so that parallel motion of the armature can be converted into other motion modes. An application scope is wide. The mechanism is suitable for an occasion which has a three-dimensional or special motion demand and the occasion in which placing space is restricted.
Description
technical field [0001] The invention relates to an electromagnetic actuator, in particular to a permanent magnet holding bistable actuator. Background technique [0002] The existing bistable actuators mainly include three types: mechanical, electromagnetic and permanent magnet. The mechanical type relies on hooks and springs to maintain a stable state, the process of engagement and separation is uncontrollable, and the structure is easy to wear, resulting in a decline in the ability to maintain a stable state. The electromagnetic type adjusts the movement process of engagement and separation by adjusting the coil current, but the steady-state maintenance requires the coil to be continuously energized, which consumes energy, and accidental power failure will also cause the steady-state maintenance to fail. The permanent magnet type adjusts the engagement and separation process through the coil, and relies on the magnetic pull of the permanent magnet to maintain a stable sta...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01H51/01
Inventor 辜承林吴迪蔡万里
Owner HUAZHONG UNIV OF SCI & TECH