CN2922109Y

CN2922109Y - Mini-type high power relay

Info

Publication number: CN2922109Y
Application number: CN 200620105885
Authority: CN
Inventors: 杨晓厦; 余晓明; 王典荣
Original assignee: Ningbo Forward Relay Corp Ltd
Current assignee: Ningbo Forward Relay Corp Ltd
Priority date: 2006-07-21
Filing date: 2006-07-21
Publication date: 2007-07-11
Anticipated expiration: 2016-07-21

Abstract

The utility model relates to a Mini-type high power relay, which comprises a base, a contact system, a magnetic circuit system and an insulating cover, wherein, an insulating barrier is arranged between the contact system and the magnetic circuit system; the contact system comprises a plurality of changeover contacts among which an auxiliary insulating barrier is used for isolating. A moving contact piece in each changeover contact is interacted with an armature in the magnetic circuit system through its own push rod; the insulating cover is hooded outside the magnetic circuit, and a plug hole of the normal close static contact piece and a contact piece slot on the base are hooded at the same time in which the base is connected; the utility model is characterized in that a connecting rod, which makes each push rod to move simultaneously, is arranged between the push rods. The utility model has a simple and a reliable structure, which is easy for commissioning after the structure is used; the synchronous action performance of the relay contact is tremendously improved based on the original big creepage distance; meanwhile, each moving contact piece can be assured to obtain a favorable contact performance and electric conductivity due to the third mounting hole to be added on the moving contact piece at the same time, therefore, the utility model is desirable to be popularized and used in different facilities concerned.

Description

Small high-power relay

Technical field

The utility model relates to a kind of relay, especially refers to a kind of small high-power relay that is used for occasions such as household electrical appliance, automated system, electronic equipment, instrument and meter, communication device and remote control.

Background technology

At present, in order to satisfy the demand in market, people design various small high-power relay already, as Chinese publication number is a kind of device " a kind of small-sized big rate relay " of CN1719567A just disclosed, it comprises base, contact system, magnetic circuit system and case, wherein, contact system comprises moving contacting plate, often open the normally closed quiet contact chip that quiet contact chip and bottom have kink, base is provided with the movable contact spring jack that inserts for above-mentioned contact chip, often open static contact jack and normally closed static contact jack, and at the other contact groove that extends along the upper bottom surface of base that is provided with of normally closed static contact jack, the kink of above-mentioned normally closed quiet contact chip embeds in this contact groove; Described magnetic circuit system comprises coil, lead wire, iron core, yoke and armature, and wherein armature links by push rod and moving contacting plate; Be covered with an insulating cover at this magnetic circuit system, this insulating cover is arranged on normally closed static contact jack and contact groove top, and is connected with base.After adopting said structure, just can strengthen the cavity depth in the insulating cover, under the constant situation of coil resistance, because the increase of magnetic circuit system bobbin length increases the number of ampere turns of winding, and the diameter of winding reduces, thereby increased the heat-dissipating space around the coil, and under the constant situation of overall volume, thickness that can also corresponding increase insulating cover, thereby can increase creepage distance effectively, improve withstand voltage between contact and coil.Therefore adopt such structure, can improve the electric property of relay preferably.But find in actual applications: when above-mentioned relay has two groups of transfer contacts; because armature is to promote separately moving contacting plate by two in-line push rods; therefore; when relay power moves; two groups of transfer contact action asynchrony phenomenons appear in regular meeting; strengthen the debugging difficulty in the manufacturing process thus, finally also influenced the electric property of cut-offfing of relay.Moreover; when the U-shaped reed of moving contacting plate is riveted mutually with pin; owing to offer two installing holes that depart from its longitudinal centre line at this one-sided place of U-shaped reed; near the phenomenon that the distortion of cracking or U-shaped reed therefore usually can installing hole, occur; therefore, such defective has also further influenced conduction and the contact performance between contact.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, provides that a kind of both to have had a creepage distance big, easy for installation, can guarantee respectively to organize the small high-power relay that the transfer contact action is carried out synchronously again.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this small high-power relay comprises base, is positioned at contact system, magnetic circuit system and insulating cover and case on the base, wherein, be provided with insulating barrier between contact system and the magnetic circuit system, described magnetic circuit system includes coil, lead wire, iron core, yoke and armature; Described contact system is by forming with the isolated many groups transfer contact of supplementary insulation dividing plate each other, and each is organized transfer contact and comprises again and often open that quiet contact chip, bottom have the normally closed quiet contact chip of kink and at the moving contacting plate of often opening between quiet contact chip and the normally closed quiet contact chip; Described base is provided with for what above-mentioned each contact chip inserted and often opens static contact jack, normally closed static contact jack and movable contact spring jack, and at the other contact groove that extends along the upper bottom surface of base that is provided with of described normally closed static contact jack, the kink of above-mentioned normally closed quiet contact chip embeds in this contact groove; Described insulating cover covers on outside the above-mentioned magnetic circuit system, also above-mentioned normally closed static contact jack and contact groove are covered in it simultaneously, and be connected with described base, and on the upper surface of this insulating cover, also be provided with the push rod of many spacing motions, the afterbody of each push rod links with above-mentioned armature respectively, its head and each self-corresponding described moving contacting plate link, and it is characterized in that: also be provided with the connecting rod that makes each push rod one motion between described each push rod.

Preferable scheme is that above-mentioned connecting rod is arranged on the head place that is adjacent to each push rod, and offers the breach for described connecting rod motion on described supplementary insulation dividing plate, so more can guarantee being synchronized with the movement of each push rod.

Simultaneously, offer a plurality of stopper slots abreast on the upper surface of described insulating cover, described each push rod lays respectively in separately the stopper slot, so that each push rod is more steady in motion process.

As further improvement of the utility model, described moving contacting plate can be the U-shaped reed, can offer three installing holes at the assembling position of this U-shaped reed, wherein first, second mounting hole site is in a side position of U-shaped reed, and the 3rd mounting hole site is in another side position of this U-shaped reed.

What be highly profitable is also to be provided with the lead wire jack on described base, and described lead wire is inserted in the described lead wire jack, in case when encapsulation encapsulant leak and enter relay inside.

Compared with prior art, because the utility model utilizes connecting rod to guarantee the one motion of each push rod, the synchronism of each moving contacting plate motion that has guaranteed then to link with each push rod finally makes Installation and Debugging convenient, can realize reliably that again relay respectively organizes the consistency that transfer contact is cut-off.Set up the 3rd installing hole by the assembling position of U-shaped reed simultaneously, just can stop the generation of the cracking and the twisted phenomena of U-shaped reed effectively.Therefore the utility model is simple and reasonable, be convenient to again implement, dielectric withstanding voltage between original big creepage distance, contact and coil reaches on the basis of 5000VAC, improve relay again widely and organized the synchronization action performance of contact more, also make each moving contacting plate have excellent contact and electric conductivity simultaneously, therefore such relay is worth applying on each facility.

Description of drawings

Fig. 1 opens perspective view behind the case for the utility model embodiment;

Fig. 2 is for having the base perspective view of contact system among Fig. 1;

Fig. 3 is a contact system perspective view among Fig. 2;

Fig. 4 is the base perspective view among Fig. 2;

Fig. 5 is the perspective view of U-shaped reed among Fig. 3;

Fig. 6 is a coil perspective view of being with yoke among Fig. 1 in the magnetic circuit system;

Fig. 7 is the perspective view of insulating cover among Fig. 1;

Fig. 8 is the perspective view of push rod among Fig. 1.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, this small high-power relay comprises base 1, be installed in contact system 2 on the base and magnetic circuit system 3 and U-shaped insulating cover 5, case 4, wherein separate mutually with an insulating barrier 16 between contact system and the magnetic circuit system, U-shaped insulating cover 5 covers in outside the magnetic circuit system 3, and with base 1 mutually buckle connect.

In the present embodiment, contact system 2 adopts two groups of transfer contacts, and as shown in Figures 2 and 3, each is organized and is provided with supplementary insulation dividing plate 17 perpendicular with above-mentioned insulation board 16 and that link into an integrated entity between the transfer contact again, makes respectively to organize between transfer contact and isolates mutually.Include and often open that quiet contact chip 22, bottom have the normally closed quiet contact chip 23 of kink 231 and and respectively organize transfer contact at the moving contacting plate of often opening between quiet contact chip and the normally closed quiet contact chip 21.Base is provided with for what above-mentioned each contact chip inserted and often opens static contact jack 12, normally closed static contact jack 13 and movable contact spring jack 11, as shown in Figure 4, and at the other contact groove 14 that extends along the upper bottom surface of base that is provided with of normally closed static contact jack, the kink 231 of this normally closed quiet contact chip embeds in this contact groove 14.Simultaneously, above-mentioned insulating cover 5 also should normally closed static contact jack 13 and contact groove 14 cover in it.

In order to make moving contacting plate 21 have better elastic, this moving contacting plate is generally the U-shaped reed, in the present embodiment, offer three installing holes at the assembling position of this U-shaped reed, as shown in Figure 5, wherein first installing hole 211, second installing hole 212 are positioned at a side position of U-shaped reed, and the 3rd installing hole 213 is positioned at another side position of this U-shaped reed.Like this, when assembling,, U-shaped reed and its pin are linked into an integrated entity with rivet by three installing holes.By reality trial-production surface, such structure can overcome the fracture and the twisted phenomena of U-shaped reed preferably.

And described magnetic circuit system 3 includes by prior art assembling all-in-one-piece coil 31, lead wire 32, iron core 33, yoke 34 and armature 35, referring to Fig. 6, coil 31 and yoke 34 are positioned at insulating

cover

5,32 of armature 35 and lead wire are exposed to the oral area place of insulating cover, wherein armature 35 links with the afterbody that is positioned at two push rods 36 on the insulating cover upper surface, and each push rod 36 head and each self-corresponding moving contacting plate 21 link.Here, for make two push rods synchronously, motion reposefully, on the insulating cover upper surface, be provided with the stopper slot 51 of two parallel distributions, each push rod is positioned at it, as shown in Figure 7.Simultaneously be provided with connecting rod 37, referring to Fig. 8, and on supplementary insulation plate 17, offer breach 18, thereby guarantee the consistency of each pushrod movement for this connecting rod motion perpendicular to each push rod at the head that is adjacent to each push rod.

In addition, also be provided with lead wire jack 15 on above-mentioned base, lead wire 32 is inserted in this lead wire jack 15, in case when encapsulation encapsulant leak and enter relay inside.

Claims

1, a kind of small high-power relay, it comprises base (1), is positioned at contact system (2), magnetic circuit system (3) and insulating cover (5) and case (4) on the base, wherein, be provided with insulating barrier (16) between contact system and the magnetic circuit system, described magnetic circuit system includes coil (31), lead wire (32), iron core (33), yoke (34) and armature (35); Described contact system is by using the isolated many groups transfer contact of supplementary insulation dividing plate (17) to form each other, and each is organized transfer contact and comprises again and often open that quiet contact chip (22), bottom have the normally closed quiet contact chip (23) of kink (231) and at the moving contacting plate of often opening between quiet contact chip and the normally closed quiet contact chip (21); Described base is provided with for what above-mentioned each contact chip inserted and often opens static contact jack (12), normally closed static contact jack (13) and movable contact spring jack (11), and at the other contact groove (14) that extends along the upper bottom surface of base that is provided with of described normally closed static contact jack, the kink of above-mentioned normally closed quiet contact chip (231) embeds in this contact groove (14); Described insulating cover (5) covers on outside the above-mentioned magnetic circuit system (3), also above-mentioned normally closed static contact jack (13) and contact groove (14) are covered in it simultaneously, and be connected with described base (1), and on the upper surface of this insulating cover (5), also be provided with the push rod (36) of many spacing motions, the afterbody of each push rod links with above-mentioned armature (35) respectively, its head and each self-corresponding described moving contacting plate (21) link, and it is characterized in that: also be provided with the connecting rod (37) that makes each push rod one motion between described each push rod.

2, small high-power relay according to claim 1 is characterized in that: described connecting rod (37) is adjacent to the head place of each push rod (36), and at the described auxiliary exhausted breach (18) that on listrium (17), offers for described connecting rod motion.

3, small high-power relay according to claim 1 and 2 is characterized in that: offer a plurality of stopper slots (51) on the upper surface of described insulating cover (5) abreast, described each push rod (36) lays respectively in separately the stopper slot (51).

4, small high-power relay according to claim 1 and 2, it is characterized in that: described moving contacting plate (21) is the U-shaped reed, offer three installing holes at the assembling position of this U-shaped reed, wherein first, second installing hole (211,212) is positioned at a side position of U-shaped reed, and the 3rd installing hole (213) is positioned at another side position of this U-shaped reed.

5, small high-power relay according to claim 1 and 2 is characterized in that: also be provided with lead wire jack (15) on the described base, described lead wire (32) is inserted in the described lead wire jack (15).