Unlock instant, AI-driven research and patent intelligence for your innovation.

An insulating shell with integrated functions and its manufacturing method

A technology with insulating shell and functions, applied in the manufacture of emergency protective devices, high-voltage/high-current switches, high-voltage air circuit breakers, etc., can solve problems such as development constraints

Active Publication Date: 2019-05-24
BEIJING BOE VACUUM ELECTRONICS CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of its own structure, the existing vacuum interrupters are difficult to maintain good voltage resistance in high-voltage and ultra-high-voltage environments, which hinders their development in the direction of high-voltage and ultra-high voltage.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An insulating shell with integrated functions and its manufacturing method
  • An insulating shell with integrated functions and its manufacturing method
  • An insulating shell with integrated functions and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] refer to figure 2 and image 3 , an insulating shell with integrated functions, including a cylindrical shell 1, where the "cylindrical" should include but not limited to three-dimensional shapes such as cylinders, spheres, ellipsoids, and spindles. Embodiment 1 uses cylinders The cylindrical shell 1 is an example, the cylindrical shell 1 can be made of glass, ceramics, glass-ceramic or plastic, and the first embodiment uses ceramic material as an example, and the openings at both ends of the cylindrical shell 1 are used to seal the metal cover plate to form a closed vacuum interrupter, figure 1 The arc pilot ring 2 located in the middle of the axial direction of the cylindrical shell 1 can be seen in the figure. The arc pilot ring 2 includes an annular mounting ring 21. The inner circumference of the mounting ring 21 forms an annular fitting groove 211. The fitting groove 211 is used for To fit and connect the ball contacts 22, a plurality of ball contacts 22 are ev...

Embodiment 2

[0090] An insulating housing with integrated functions, see Figure 5 , the difference from Embodiment 1 is that the spherical contact 22 is replaced by a columnar contact 23, and the shape selection of the contact on the arc ring 2 for attracting the arc between the contacts should be avoided as much as possible. The burrs or corners are used to reduce the impact of the contacts on the magnetic field in the vacuum interrupter and improve the voltage resistance of the vacuum interrupter. The columnar contact 23 shown in the figure has a longer length in the axial direction of the cylindrical shell 1 Length, suitable for higher voltage vacuum circuit breakers with larger spacing between contacts.

Embodiment 3

[0092] An insulating housing with integrated functions, see Figure 6 The difference between it and the second embodiment is that the cylindrical contact 23 is replaced by a ring contact 24. Since the outer diameter of the ring contact 24 matches the diameter of the fitting groove 211, it is difficult to install a complete ring into the fitting Therefore, the circular contact 24 is divided into three or more equal parts, which are installed and welded in the fitting groove 211 one by one to form a complete ring.

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

No PUM Login to View More

Abstract

An insulating housing with integrated functions comprises a barrel-shaped shell, an interior wall of which being provided with a protruded or recessed uneven texture configured to increase a creepage distance between both axial ends of the barrel-shaped shell, the path of the creepage distance formed by the protruded or recessed uneven texture having more than two flyover or bypass sub-paths, such that the creepage distance is increased, and the voltage withstanding is increased.

Description

technical field [0001] The invention relates to the field of vacuum circuit breakers, in particular to an insulating shell of a vacuum interrupter in a vacuum circuit breaker and a manufacturing method thereof. Background technique [0002] The vacuum interrupter is the core component of the vacuum circuit breaker, such as figure 1 As shown, it includes a generally cylindrical insulating shell 51 made of inorganic insulating materials such as ceramics or glass. The two ends of the insulating shell 51 are sealed with metal cover plates 52 to form an airtight container. The inside of the airtight container is provided with a fixed The static contact 54 on the static conductive rod 53, and the movable contact 56 fixed on the movable conductive rod 55, the bellows 57 is sealed between the movable conductive rod 55 and the metal cover plate 52, and the movable conductive rod 55 is arranged along its axis. To move the movable contact 56 to complete the opening and closing action ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/662H01H69/00
CPCH01H33/66207H01H33/12
Inventor 任建昌张坦
Owner BEIJING BOE VACUUM ELECTRONICS CO LTD