CN201667321U

CN201667321U - Relay

Info

Publication number: CN201667321U
Application number: CN201020156053XU
Authority: CN
Inventors: 王铁伟; 王坚敏; 陈云
Original assignee: NINGBO TIANBO GANGLIAN ELECTRONICS CO Ltd
Current assignee: NINGBO TIANBO GANGLIAN ELECTRONICS CO Ltd
Priority date: 2010-04-12
Filing date: 2010-04-12
Publication date: 2010-12-08
Anticipated expiration: 2020-04-12

Abstract

The utility model discloses a relay. The relay comprises a magnetic path part, a contact part, a base and an outer shell connected with the base, wherein the magnetic path part comprises a yoke, an armature, a frame, an iron core and a coil; the iron core is positioned in the internal cavity of the frame; the coil is wound on the peripheral wall of the frame; the top of the frame is provided with two guide lug bosses which can limit the armature to swinging back and forth; and the top surface of the internal cavity of the outer shell is provided with an upper limiting lug boss capable of limiting the armature to swinging upwards and a left limiting lug boss capable of limiting the armature to swinging leftwards. The relay has the advantage of preventing the armature from swinging during the work so as to effectively ensure the stability of the work.

Description

Relay

Technical field:

The utility model relates to a kind of electronic control device, specifically is a kind of being applied in the automatic control circuit, the relay that can avoid armature to shake in the course of the work.

Background technology:

Relay of the prior art generally is made up of magnetic circuit part, contact portion, pedestal and shell etc., magnetic circuit partly generally includes yoke, armature, skeleton, be arranged in the iron core of skeleton inner chamber and be wrapped in coil on the skeleton periphery wall, and contact portion generally includes movable contact spring, static contact spring piece, be connected the moving contact on the movable contact spring and be connected fixed contact on the static contact spring piece.When the relay of said structure is worked, as long as add certain voltage at the coil two ends, will flow through certain electric current in the coil, thereby generation galvanomagnetic effect, armature can overcome the bounce of connected movable contact spring and inhale to iron core under the effect of electromagnetic attracting force, thereby drives moving contact and fixed contact adhesive on the movable contact spring; Behind coil blackout, electromagnetic attraction also disappears thereupon, and armature then can turn back to original position under the bounce effect of movable contact spring, and moving contact and fixed contact are disconnected.Though relay of the prior art is widely adopted; but; still there is a weak point in it in actual application: because armature all can carry out adhesive and disconnection with iron core continually in entire work process; and armature takes place upwards, left and shaking phenomenon such as front and back because of the elastic force effect of inertia and movable contact spring through regular meeting in adhesive and disconnection process; therefore, relay of the prior art can become very unstable in the course of the work.

The utility model content:

The technical problems to be solved in the utility model is, provides a kind of and can avoid the armature phenomenon that shakes in the course of the work, thereby effectively guarantee the relay of working stability performance.

Technical solution of the present utility model is, a kind of relay with following structure is provided: it comprises magnetic circuit part, contact portion, pedestal and is connected shell on the pedestal, magnetic circuit partly comprises yoke, armature, skeleton, be arranged in the iron core of skeleton inner chamber and be wrapped in coil on the skeleton periphery wall, wherein, the skeleton top is provided with two can limit the guide ledges of rocking before and after the armature, and the shell inner cavity top surface is provided with and can limits the upper limit boss that armature upwards rocks and can limit the left limit boss that armature rocks left.

After adopting above structure, compared with prior art, the utility model relay has the following advantages: because the utility model relay can limit the guide ledges of rocking before and after the armature except be provided with two at the skeleton top, also the top of chamber surface is provided with and can limits the upper limit boss that armature upwards rocks and can limit the left limit boss that armature rocks left in the enclosure, therefore, the utility model relay is in entire work process, armature can be in guide ledges, motion reposefully under the effect of upper limit boss and left limit boss, thereby avoided armature elastic force effect because of inertia and movable contact spring in adhesive and disconnection process to take place upwards, left and shaking phenomenon such as front and back, and then strengthened the working stability performance of the utility model relay greatly.

Description of drawings:

Fig. 1 is the stereochemical structure profile schematic diagram of the utility model relay;

Fig. 2 is the sectional structure schematic diagram along " A-A " line among Fig. 1;

Fig. 3 is the exploded structural representation of the utility model relay;

Fig. 4 is the stereochemical structure enlarged diagram of shell in the utility model relay.

Embodiment:

Below in conjunction with the drawings and specific embodiments the utility model relay is described further:

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in this embodiment, the utility model relay comprises magnetic circuit part, contact portion, pedestal 5 and is connected shell 1 on the pedestal 5.Magnetic circuit partly comprises yoke 10, armature 14, skeleton 12, two terminal pins 4, be used to locate the jump ring 17 of armature 14, be arranged in the iron core 11 of skeleton 12 inner chambers and be wrapped in coil 13 on skeleton 12 periphery walls, the connector lug (not shown) at coil 13 two ends is connected with two terminal pins 4 respectively, the horizontal convex edge of yoke 10 bottom bending parts is positioned at the draw-in groove of skeleton 12 bottoms, yoke 10 both sides all are positioned at the groove that pedestal 5 madial walls are provided with, jump ring 17 is riveted on the sidewall of yoke 10, two terminal pins 4 all are connected on the skeleton 12, skeleton 12 tops are provided with two can limit the guide ledges 15 that rock armature 14 front and back, two guide ledges 15 lay respectively at the both sides of armature 14, be equipped with one near side-walls on the shell 1 inner chamber top surface and can limit upper limit boss 16 that armature 14 upwards rocks and one and can limit the left limit boss 18 that armature 14 rocks left, upper limit boss 16 is positioned at the right side of left limit boss 18.Contact portion comprises movable contact spring 9, static contact spring piece 2, eject sheet 3, push rod 8, be connected the moving contact 6 on the movable contact spring 9 and be connected fixed contact 7 on the static contact spring piece 2, static contact spring piece 2 and ejection sheet 3 all are connected on the pedestal 5, movable contact spring 9 bottoms are riveted on ejects on the sheet 3, one end of push rod 8 is connected on the movable contact spring 9, and the other end is connected on the armature 14.

Claims

1. relay, it comprises the magnetic circuit part, contact portion, pedestal (5) and be connected shell (1) on the pedestal (5), described magnetic circuit partly comprises yoke (10), armature (14), skeleton (12), be arranged in the iron core (11) of skeleton (12) inner chamber and be wrapped in coil (13) on skeleton (12) periphery wall, it is characterized in that: described skeleton (12) top is provided with two can limit the guide ledges (15) of rocking before and after the armature (14), and described shell (1) inner chamber top surface is provided with and can limits the upper limit boss (16) that armature (14) upwards rocks and can limit the left limit boss (18) that armature (14) rocks left.