Framework of relay and relay

Patent metadata

Field	Value
Publication number	US-2016133404-A1
Application number	US-201414902915-A
Country	US
Kind code	A1
Filing date	May 30, 2014
Priority date	Jul 5, 2013
Publication date	May 12, 2016
Grant date	—

Abstract

A framework part of a relay and a relay. An inner hollow portion and peripheral windows are formed by the framework. The windows are communicated with the exterior of the framework and the hollow portion. At least one group of contactors that can correspondingly contact are accommodated in the hollow portion. An arc gap is formed between the contactors that can correspondingly contact. The windows are aligned with the arc gap from an outer side. A main body of the framework is a hollowed injection molding framework, and has multiple windows that are aligned with the arc gap from the outer side, so that, under the precondition of ensuring the structural strength, materials can be reduced and the cost can be reduced. The windows can be used for installing functional components such as magnetic steel, a resistant act clip or an arcing and are extinguishing piece. The framework is made be applicable to relays and breakers having more functions and requirements, so as to improve a scope of application of products to a great extent and facilitate reduction of molds and other manufacturing costs.

First claim

1 . A framework portion of a relay, wherein:
a hollow portion is formed inside the framework and a window is formed on the periphery of the framework, the window communicates the outside of the framework and the hollow portion; two sets of contacts that are contactable correspondingly with each other are accommodated inside the hollow portion; an arc gap is formed between the contacts that are contactable with each other, the window is aligned with the arc gap from outside, wherein the framework is formed integrally, and is made of plastic materials, the two sets of contacts include the movable contacts and stationary contacts, respectively a main body of the framework comprises a plurality of posts, an upper mounting portion and a lower connection portion, each of the posts is arranged with distances on a periphery of the hollow portion is connected with each of the posts at an upper portion, the lower connection portion is connected with each of the posts at a lower portion, and the lower connection portion is fixedly connected with a pushing mechanism.

2 . (canceled)

3 . (canceled)

4 . (canceled)

5 . The framework portion of the relay according to claim 1 , wherein a plurality of slots are provided symmetrically in a transverse direction on the windows symmetrically located on both sides of the framework, respectively, the plurality of slots are arranged from up to down, and the both ends of the slots communicates outside of the framework and the hollow portion.

6 . The framework portion of the relay according to claim 5 , wherein the plurality of slots are arranged from up to down with distances therebetween.

7 . The framework portion of the relay according to claim 6 , wherein the framework portion further comprises two first arc extinguishing pieces and at least two second arc extinguishing pieces; the two first arc extinguishing pieces are mounted symmetrically in the slots on a uppermost layer of both sides of the framework; and the two first arc extinguishing pieces are close to or abut against the corresponding contacts that are contactable correspondingly, the at least two second arc extinguishing pieces are mounted symmetrically in the corresponding slots on both sides of the framework, abut under the first arc extinguishing pieces; and the second arc extinguishing pieces have a length smaller than that of the first arc extinguishing pieces, such that the second arc extinguishing pieces are spaced from the corresponding contacts with a certain distance in a projection plane.

8 . The framework portion of the relay according to claim 7 , wherein each of the first arc extinguishing pieces and second arc extinguishing pieces is provided with an opening facing inwards the framework, the openings of the first arc extinguishing pieces are close to or abut against the corresponding arc gaps.

9 . The framework portion of the relay according to claim 8 , wherein each of the openings of the first arc extinguishing pieces and second arc extinguishing pieces has a Y-shape.

10 . The framework portion of the relay according to claim 1 , wherein the framework portion further comprises at least one magnetic steel and at least one arc resistance piece; the magnetic steel is mounted to the windows, the magnetic steel is located on the periphery of the arc gaps, and the magnetic steel blow an arc created at the arc gaps; the arc resistance piece is mounted to the windows, and the arc resistance piece is located in the direction of the arc blowing direction of the magnetic steel.

11 . The framework portion of the relay according to claim 10 , wherein the magnetic steel blow the arc towards the outside of the reply or the outside of the contactor framework with the function of the magnetic field of the magnetic steel.

12 . The framework portion of the relay according to claim 11 , wherein the arc resistance piece is made of a ceramic piece.

13 . The framework portion of the relay according to claim 12 , wherein the magnetic steels are provided in pairs, and opposing surfaces of opposing magnetic steels have reversed magnetic poles.

14 . The framework portion of the relay according to claim 12 , wherein the arc resistance pieces are provided in pairs, and the arc resistance pieces are provided symmetrically with respect to a center aligned to a center of the arc gap.

15 . The framework portion of the relay according to claim 13 , wherein the framework portion comprise two sets of parallel contacts, and the arc gaps having two spaces; the magnetic steels is located respectively along an extension line extending outwards from a connecting line between the two arc gaps; at least two pairs of the arc resistance pieces are mounted on an outside of the arc gaps, a connecting line between centers of corresponding arc resistance pieces is perpendicular to that between the two arc gaps.

16 . The framework portion of the relay according to claim 13 , wherein the framework comprises two sets of parallel contacts, and the arc gaps having two spaces; the arc resistance pieces is mounted to the windows in an extension line extending outwards from a connecting line between the two arc gaps; the magnetic steel is mounted to the windows outside the arc gaps, a connecting line between centers of corresponding magnetic steels is perpendicular to that between the two arc gaps.

17 . (canceled)

18 . (canceled)

19 . The framework portion of the relay according to claim 15 , wherein the arc resistance piece is mounted to the main body of the framework by means of snapping or embedded pieces.

20 . The framework portion of the relay according to claim 18 , wherein a limit rib is formed on the mounting position of the main body of the framework, the limit rib has a shape matching with a shape of the arc resistance piece, and the limit rib has a snapping strip on its surface contacting with an edge of the arc resistance piece, the snapping strip has a slope snapping the edge of the arc resistance piece from outside to inside.

21 . (canceled)

22 . (canceled)

Assignees

• Xiamen Hongfa Electric Power Controls Co Ltd

Inventors

• Zhong Shuming
• Shi Shengsheng

Classifications

• H01H50/045

  Details particular to contactors (H01H50/042 takes precedence) · CPC title

• H01H50/06

  having windows; Transparent cases or covers · CPC title

• H01H9/362

  Mounting of plates in arc chamber · CPC title

• H01H50/042

  Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support · CPC title

• H01H2205/002

  fixed to operating part · CPC title