Load switch-fuse combination electric appliance and tripping device thereof

A technology for load switches and combined electrical appliances, applied in electrical switches, emergency protection devices, high-voltage air circuit breakers, etc., can solve problems such as hidden dangers of circuit safety, failure of tripping devices to trip normally, and phase-deficient operation of combined electrical appliances. The tripping force and the effect of increasing the displacement and increasing the driving force

Active Publication Date: 2019-11-15
XUJI GRP +3
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tripping device for a load switch-fuse combination, which is used to solve the problem that the tripping force of the load switch-fuse combination in the prior art is too small, which causes the tripping device to fail to trip normally. Technical problem; the corresponding

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
  • Load switch-fuse combination electric appliance and tripping device thereof
  • Load switch-fuse combination electric appliance and tripping device thereof
  • Load switch-fuse combination electric appliance and tripping device thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] The specific embodiment of the trip device for the load switch-fuse combination electrical appliance of the present invention:

[0036] like figure 1 Shown is a simplified structural schematic diagram of the trip device for the load switch-fuse combination electrical appliance in Embodiment 1. The trip device for the load switch-fuse combination appliance (hereinafter referred to as the trip device) comprises a frame plate 2, a frame plate 2 A guide sleeve 3 is provided on the guide sleeve 3, and a guide rod 4 extending along the length direction of the guide sleeve 3 is inserted in the guide sleeve 3. The end of the guide rod 4 passing through the guide sleeve 3 is the tripping trigger end. The sleeve 3 moves toward the direction of the operating mechanism of the load switch, so that the trip trigger end triggers the micro switch (not shown) in the operating mechanism, so as to realize the tripping action of the tripping device and the opening of the corresponding load...

Example Embodiment

[0051] In Embodiment 1, since the locking member 9 is hinged on the interlocking member 11 , the locking member 9 can swing counterclockwise relative to the interlocking member 11 . The driving member pushes the locking member 9 to drive the driving force of the locking member 9 to swing counterclockwise, thereby reducing the force of the operator to drive the driving member.

[0052] In Embodiment 2 of the load switch-fuse combination appliance of the present invention, the difference from Embodiment 1 is: image 3 As shown, the locking member 109 can also be directly fixed on the interlocking member 1011, the locking limiting member is not provided between the locking member and the interlocking member, and the locking return spring is also not provided between the locking member and the frame plate , the locking return spring 1014 and the locking limiting member 1015 can be arranged between the interlocking member 1011 and the frame plate, or in other embodiments, the locki...

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

The invention relates to a load switch-fuse combination electric appliance and a tripping device thereof. In the load switch-fuse combination electric appliance, the tripping device is arranged between a fuse and a load switch. The tripping device comprises a guide rod to trigger the operating mechanism of the load switch. A driving member is rotatably assembled on a frame plate. A driving springprovides force for urging the guide rod to break away from the driving member. A locking member is supported on the driving member to lock the driving spring in an energy storage state. An interlocking member is rotatably assembled on the frame plate, connected with the locking member, and provided with a lock return spring and a lock limit member. A trigger member comprises a trigger portion which cooperates with a fuse striker, is fixedly connected with the interlocking member, or is hinged to the interlocking member and connected with a trigger member return spring. The driving member is swung to enable the driving spring to store energy. After the striker hits the trigger member, the spring force is transmitted to the guide rod, and the guide rod triggers the operating mechanism of theload switch. The tripping force of the tripping device is increased, and normal tripping of the tripping device is realized.

Description

technical field [0001] The invention relates to a load switch-fuse combination electric appliance and a tripping device thereof. Background technique [0002] In the field of high-voltage switchgear, load switch fuse combination appliances are widely used. [0003] The load switch fuse combination includes a load switch, a chain trip mechanism and a fuse device. When the current exceeds the specified value, the fuse in the fuse device will blow its internal fuse with the heat generated by itself and eject the striker Trigger the tripping of the chain tripping mechanism, and finally complete the opening operation to achieve the purpose of protecting the safety of electricity consumption. [0004] The Chinese utility model patent with the authorized announcement number CN205542560U discloses a fuse tripping mechanism for an integrated vacuum load switch-fuse combination electrical appliance. When the fuse in the fuse is blown, the striker in the fuse will pop out and hit the...

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
IPC IPC(8): H01H31/02H01H31/12H01H85/04H01H85/055
CPCH01H31/02H01H31/122H01H85/04H01H85/055
Inventor 吴小钊翟贺鹏赵洪柏白维正张文凯李燕燕张琦
Owner XUJI GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap