Electronic releaser for molded case circuit breaker
A technology of electronic release and molded case circuit breaker, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of explosion of molded case circuit breaker, burning equipment and lines, endangering life safety, etc. Improve safety and reliability, avoid short-circuit fault current effects
Active Publication Date: 2013-07-03
SHANGHAI LIANGXIN ELECTRICAL
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
If the electronic molded case circuit breaker does not have a fast electromagnet, when a large short-circuit current occurs, the time for the magnetic flux to be triggered by the circuit board is about 20 milliseconds. The short-circuit current may burn out the equipment and line, in severe cases, the molded case circuit breaker will explode, endangering human safety
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
[0026] A preferred embodiment of the present invention will be described in detail below by taking a four-pole electronic release as an example with reference to the accompanying drawings.
[0027] like figure 1 , 2 As shown, the four-pole electronic release includes four busbars 4, four transformers 5, four yokes 6, four armatures 7, a drawbar 15 and a flux converter 13, all of which are located in a on the shell. This housing is made up of loam cake 2, middle lid 11 and base 3, and loam cake is provided with hole 43,44,45 (as image 3 shown), the upper cover 2 is also provided with a label 18 and a transparent cover 1, and the transparent cover 1 covers the label 18; the middle cover 11 is provided with holes 37, 38, 39, 40, 41, grooves 28, 29, and a cylinder 32 , 33 (such as Figure 4 Shown); The base is provided with boss 19, positioning groove 21, holes 24,26, platform 34,35,36,42 (as Figure 5 shown). The holes 37, 38, 39 on the middle cover 11 are fastened with th...
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 discloses an electronic releaser for a molded case circuit breaker. The electronic releaser comprises a casing, a busbar (4), a mutual inductor (5), an armature (7), a magnetic yoke (6), a traction rod (15) and a magnetic flux converter (13); the busbar (4) passes through a mutual inductor through hole (23) and an armature through hole (25); the armature (7) is connected with the casing by a tension spring (14); the magnetic yoke (6) is positioned on the busbar (4) and opposite to the armature (7); the traction rod (15) on which a first bump (51) and a second bump (52) are arranged can be rotatably connected on the casing; the first bump (51) is in contact with the magnetic flux converter (13); and the second bump (52) is in contact with the armature (7). The armature actionof the electronic releaser provided by the invention can be accomplished within only a few milliseconds with high reaction speed; the burnouts of the equipment and the circuit, caused by a higher current in a short circuit fault, for a long time can be effectively avoided; and the securities of the equipment and workers are ensured.
Description
technical field [0001] The invention relates to an electronic release device, in particular to an electronic release device for a rotary double-breakpoint electronic molded case circuit breaker. Background technique [0002] The electronic release used in the molded case circuit breaker can provide good protection against overload and short circuit, and has multiple functions, communication and intelligence, and is more and more widely used in the field of circuit breakers. There are two types of molded case circuit breakers: single breakpoint and double breakpoint. The electronic tripper structure of single breakpoint molded case circuit breaker almost has a fast electromagnet structure, while the electronic tripper of rotary double breakpoint molded case circuit breaker The device has almost no fast electromagnet structure. If the electronic molded case circuit breaker does not have a fast electromagnet, when a large short-circuit current occurs, the time for the magnetic...
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): H01H71/24
Inventor 晏国云
Owner SHANGHAI LIANGXIN ELECTRICAL