Relay

Patent metadata

Field	Value
Publication number	US-10490380-B2
Application number	US-201615741660-A
Country	US
Kind code	B2
Filing date	Aug 30, 2016
Priority date	Aug 31, 2015
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A relay ( 100 ) is provided. The relay ( 100 ) includes an insulating housing ( 10 ) defining an accommodating cavity ( 11 ) therein; two binding posts ( 12 ) disposed to the insulating housing ( 10 ), each having an end extending into the accommodating cavity ( 11 ); an insulating plate ( 20 ) disposed within the accommodating cavity ( 11 ), movable between a first position and a second position, and having two connecting contacts ( 21 ) disposed on a first side of the insulating plate ( 20 ) facing the binding posts ( 12 ); a fuse ( 30 ) disposed between the two connecting contacts ( 21 ); a mounting base ( 40 ) connected to the insulating housing ( 10 ); and a push rod ( 41 ) movably disposed to the mounting base ( 40 ) and connected to the insulating plate ( 20 ), in which when the insulating plate ( 20 ) is located at the first position, the two connecting contacts ( 21 ) abut against the two binding posts ( 12 ) respectively, and when the insulating plate ( 20 ) is located at the second position, the two connecting contacts ( 21 ) detach from the two binding posts ( 12 ) respectively.

First claim

What is claimed is:

1. A relay, comprising:
an insulating housing defining an accommodating cavity therein, wherein the accommodating cavity is open at one end thereof;
two binding posts spaced apart from each other and disposed to the insulating housing, wherein an end of each of the two binding posts extends into the accommodating cavity;
an insulating plate disposed within the accommodating cavity, movable between a first position and a second position, and comprising two connecting contacts spaced apart from each other and disposed on a first side of the insulating plate facing the binding posts, wherein the two connecting contacts are corresponding to the two binding posts in terms of position respectively, the insulating plate comprising multiple arc-extinguishing grids provided on the first side of the insulating plate facing the two binding posts, a mounting groove extending along a length direction of the insulating plate defined by the multiple arc-extinguishing grids;
a fuse disposed within the mounting groove and between the two connecting contacts, wherein two ends of the fuse are electrically connected to the two connecting contacts respectively;
a mounting base connected to the insulating housing; and
a push rod movably disposed to the mounting base and connected to the insulating plate to push the insulating plate to move between the first position and the second position,
wherein when the insulating plate is located at the first position, the two connecting contacts abut against the two binding posts respectively, and when the insulating plate is located at the second position, the two connecting contacts detach from the two binding posts respectively.

2. The relay according to claim 1 , wherein the mounting base is connected to the insulating housing to seal the accommodating cavity, and the accommodating cavity is filled with an arc-extinguishing gas.

3. The relay according to claim 1 , wherein the mounting groove is configured as a through groove running through the multiple arc-extinguishing grids.

4. The relay according to claim 1 , wherein the insulating plate is provided with multiple through holes, the multiple through holes run through the insulating plate along a thickness direction of the insulating plate and are in communication with the mounting groove.

5. The relay according to claim 1 , wherein the fuse is configured as a sheet extending along a length direction of the insulating plate, the fuse comprises multiple bending portions spaced apart from or adjacent to each other in a length direction thereof, and each bending portion is configured to have a rectangle shape, a triangle shape, or a trapezoid shape.

6. The relay according to claim 1 , wherein a mounting cavity in communication with the accommodating cavity is defined at a lower end of the mounting base, the push rod is disposed within the mounting cavity, and a first end of the push rod extends into the accommodating cavity to be connected to the insulating plate.

7. The relay according to claim 6 further comprising a core and a coil, wherein the core is movably disposed within the mounting cavity and is connected to a second end of the push rod, and the coil is disposed on a periphery of the core and is connected to a power supply.

8. The relay according to claim 7 , wherein a limiting post is disposed within the mounting cavity, the limiting post is located between the core and a top wall of the mounting base and abuts against the top wall of the mounting base, a reset spring is disposed between the limiting post and the core, and two ends of the reset spring abut against the core and the limiting post respectively.

9. The relay according to claim 1 , wherein a mounting frame is provided at a second side of the insulating plate facing away from the binding posts, and a first end of the push rod is connected to the mounting frame.

10. The relay according to claim 9 , wherein a buffering member is disposed between the mounting frame and the push rod, and two ends of the buffering member abut against the mounting frame and the push rod respectively.

11. The relay according to claim 1 , wherein the insulating housing and the insulating plate are made of ceramic.

Assignees

• Byd Co Ltd

Inventors

• Yao Baotong
• Li Zhichao

Classifications

• H01H9/443

  using permanent magnets · CPC title

• H01H2085/383

  with insulating stationary parts · CPC title

• H01H9/34

  Stationary parts for restricting or subdividing the arc, e.g. barrier plate · CPC title

• H01H45/14

  Terminal arrangements · CPC title

• H01H50/546 Primary

  for contactors having bridging contacts · CPC title