CN2502397Y

CN2502397Y - Electromagnetic relay

Info

Publication number: CN2502397Y
Application number: CN 01230086
Authority: CN
Inventors: 谭忠华
Original assignee: Xiamen Hongfa Electroacoustic Co Ltd
Current assignee: Xiamen Hongfa Electroacoustic Co Ltd
Priority date: 2001-08-25
Filing date: 2001-08-25
Publication date: 2002-07-24
Anticipated expiration: 2011-08-25

Abstract

The utility model relates to a relay, which comprise a magnetic circuit system, a contacting system, a base and a shell. A making contact point group and or a breaking contact point group are arranged in the contact system, a NO static spring and a movable spring insulation wall are arranged on the base respectively. A public passage is arranged between a NC static spring and a movable spring insulation wall, and between the NO spring and the NC spring, the draw-out hole of the making contact point group and the breaking contact point group are arranged at the joint part of the two insulation walls. The NC and the NO contact point group shares a base, on the base, the draw-out hole of the movable contact spring, the draw-out hole of the NC static spring and the NO spring are same. Wherein, the making contact point relay and the breaking contact point relay share a base. The size of the draw-out feet place is same, the draw-out feet of the movable spring and the static spring need a big bending extension, which adds the process difficulty of the components, however, the utility model can meet the special requirements of customers. The performance and price ratio and the performance and volume ratio are better than the existing relay of same kind.

Description

Electromagnetic relay

1) technical field

The utility model relates to a kind of relay, especially the same moving electromagnetic relay that closes, moves disconnected quiet spring fairlead of base band.

2) background technology

Relay is as a kind of electromechanical compo, mainly apply in the various electromechanical equipments, in conventional electromagnetic relay, generally form, generally comprise coil, coil exit, iron core, yoke, armature, pushing block, movable contact spring, static contact spring piece, contact, base, shell by magnetic circuit system, contact system, base and shell.Wherein coil generally adopts vertical formal dress or upside-down mounting mode, the short transverse size of product is bigger, and the isolation between coil and contact is also lower, and dielectric withstanding voltage is not high, the high energy of transfer contact product reaches 3000VAC generally speaking, and normally opened contact type product also can only reach 4000VAC.This just causes requiring the little and input of installing space, output isolation high occasion, and this series products can't satisfy instructions for use.

In the electromagnetic relay of prior art, make contact group relay and break contact group relay be from the transfer contact component from, thereby, its leading foot position dimension is different fully, when the user need use make contact group relay or break contact group relay, must use the printed board of position, different hole size.As Fig. 1, shown in 2, existing relay when design generally is to adopt one group of switching relay structure, when not packing normally closed static contact spring piece part into, obtains one group of normally opened contact group relay; When often opening the static contact spring piece part when not packing into, obtain one group of normally-closed contact group relay, at this moment one group of conversion, one group are often opened, one group of all shared base of normally-closed contact group relay, but the leading foot position difference of one group of normally opened contact group, one group of normally-closed contact group, can not general printed board.Divider wall 1,2 on base will often be opened static contact spring piece and movable contact spring respectively, and normally closed static contact spring piece and movable contact spring separate, and often opening static contact spring piece and normally closed static contact spring piece does not have public extraction location (passage).

3) summary of the invention

It is a kind of simple in structure that the purpose of this utility model is to provide, and the electromagnetic relay of assembling, good manufacturability can carry out the production of batch flowing water, and performance, volume ratio and performance, price are than all being better than existing similar relay.

Another purpose of the utility model is to provide a kind of high performance electromagnetic relay, input, output dielectric withstanding voltage are more than the 5000VAC, have one group of make contact group or one group of disconnected contact sets, their shared bases, the leading foot position dimension is just the same, can satisfy under the constant situation of user's printed board, use the electromagnetic relay requirement of make contact group or break contact group, low-mounting height, its P/C ratio and performance/volume ratio all are better than existing like product.

The utility model comprises magnetic circuit system, contact system, base and shell, be provided with make contact group or break contact group in the contact system, on base, establish respectively and often open static contact spring piece and movable contact spring divider wall, normally closed static contact spring piece and movable contact spring divider wall, often open between static contact spring piece and normally closed static contact spring piece and establish public passage, be provided with the fairlead of make contact group and break contact group at two divider wall meets.Often open, the shared base of normally-closed contact group, on base, the fairlead of movable contact spring, the fairlead of normally closed static contact spring piece is with often to open the static contact spring piece fairlead identical.Wherein the shared base of make contact group relay or break contact group relay can satisfy under the constant situation of user's printed board, uses the requirement of make contact group or break contact group, low-mounting height.Its leading foot position dimension is identical, and the leading foot of movable contact spring and static contact spring piece need carry out a macrobending and extend, though increased the difficulty of processing of part, can satisfy client's specific (special) requirements.Its P/C ratio, performance/volume ratio all are better than existing similar relay.

4) description of drawings

Fig. 1 is existing electromagnetic relay base divider wall structure chart.

Fig. 2 is a make contact group relay structural representation.

Fig. 3 is a break contact group relay structural representation.

Fig. 4 is a understructure schematic diagram of the present utility model.

Fig. 5 is a base back surface structural representation of the present utility model.

Fig. 6 is a break contact group spring combination schematic diagram of the present utility model.

Fig. 7 is a make contact group spring combination schematic diagram of the present utility model.

5) embodiment

Shown in Fig. 2～5, the utility model is made up of magnetic circuit system, contact system, base and shell, establishes in the contact system and often opens static contact spring piece 3 and movable contact spring 4, forms the make contact group; Or establish normally closed static contact spring piece 5 in the contact system and form the break contact group with movable contact spring 4.Often open, the normally-closed contact group all is located on 1 base 6.On base 6, establish respectively and often open static contact spring piece and movable contact spring divider wall 7, normally closed static contact spring piece and movable contact spring divider wall 8, often open between static contact spring piece and normally closed static contact spring piece and establish public passage 9, at two divider walls 8,9 meets are provided with normally closed static contact spring piece and the public fairlead 10 of often opening static contact spring piece, also promptly move and close, move disconnected quiet spring fairlead.Establish movable contact spring fairlead 11 at the opposite side of fairlead 10.Referring to Fig. 6,7, the leading foot 41 of movable contact spring 4 passes the movable contact spring fairlead 11 of base, and the leading foot 51 of normally closed static contact spring piece 5 or the leading foot 31 of often opening static contact spring piece 3 pass the public fairlead 10 of static contact spring piece of base.

Movable contact spring 4 is for U-shaped designs, and the base bottom is pressed close at U-shaped press-bending position 42, and leading foot adopts overlay structure, to increase conductive cross-sectional area.

Claims

1, electromagnetic relay, comprise magnetic circuit system, contact system, base and shell, be provided with make contact group or break contact group in the contact system, it is characterized in that on base, establishing respectively and often open static contact spring piece and movable contact spring divider wall, normally closed static contact spring piece and movable contact spring divider wall, often open between static contact spring piece and normally closed static contact spring piece and establish public passage, be provided with the fairlead of make contact group and break contact group at two divider wall meets.

2, electromagnetic relay as claimed in claim 1 is characterized in that movable contact spring designs for U-shaped, and the base bottom is pressed close at U-shaped press-bending position, and leading foot adopts overlay structure.