CN201732736U

CN201732736U - Relay

Info

Publication number: CN201732736U
Application number: CN2010202643313U
Authority: CN
Inventors: 吴颂仁
Original assignee: SHANGHAI SONG CHUAN ELECTRON CO Ltd; Song Chuan Precision Co Ltd
Current assignee: SHANGHAI SONG CHUAN ELECTRON CO Ltd; Song Chuan Precision Co Ltd
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2011-02-02
Anticipated expiration: 2020-07-20

Abstract

The utility model provides a relay comprising a relay coil, a middle elastic sheet provided with two movable contact points, a first conducting terminal provided with a fixed contact point and a second conducting terminal provided with a fixed contact point, wherein the relay coil is electrically conducted to generate electromagnetic action to indirectly drive the middle elastic sheet; each movable contact point of the middle elastic sheet respectively contacts the fixed contact points of the first conducting terminal and the second conducting terminal, so as to form a contact point control circuit with single input and single output of the relay, wherein the middle elastic sheet conducts the first conducting terminal and the second conducting terminal, and the circuit is inputted to the middle elastic sheet through the first conducting terminal and is outputted through the second conducting terminal, or is inputted to the middle elastic sheet through the second conducting terminal and is outputted through the first conducting terminal. For the relay in the utility model, the contact point interval is increased, and the electric arc shutoff capacity is greatly improved.

Description

Relay

Technical field

The utility model relates to a kind of relay, particularly a kind of relay with the effect that increases contact spacing and lifting current interruption ability.

Background technology

Relay (Relay) is a kind of electronic control device, be applied in the middle of the automation control electronic loop, all to use relay, relay to be actually a kind of electronic type automatic switch that removes to control big electric current with less current as communication switcher, Industry Control, vehicle or air conditioner etc.Relay is being played the part of roles such as adjusting automatically, safeguard protection, change-over circuit in electronic loop.

At first see also Fig. 6, Fig. 6 shows the circuit diagram of a kind of electromagnetic type relay of the prior art at present, this relay 9 includes the relay coil 91 of a unicoil kenel, this relay coil 91 is electrically connected with two coil Lead-through

terminal

92,93, there is an input terminal 94, two to be connected in parallel on the two point switch 95,951 of input terminal 94 in circuit diagram right side part, and respectively at two lead-

out terminals

96,97 of each contact switch 95,951 series connection;

Circuit function mode about the electromagnetic type relay of prior art, current flowing coil Lead-through

terminal

92,93 and relay coil 91, relay coil 91 produces the action of a magnetic field power and magnetic force absorption two point switch 95,951 motions, allow contact switch 95,951 become channel status, by an input terminal 94 inputs, and by two lead-

out terminals

96,97 outputs, if illustrate with the relay assembly structure, promptly be that a power circuit is by shell fragment in the input terminal process, middle shell fragment contacts and exports with two lead-out terminals, in view of the above, relay has constituted an input signal and has exported the kenel of two signals, the contact spacing of this kenel only has distance between single winding point, and (two windings point is the sample of a conducting simultaneously attitude, contact spacing between contact switch 95 and the lead-out terminal 96, or the contact spacing between contact switch 951 and the lead-out terminal 97, so the contact spacing of relay is the distance between single winding point), the less and electric arc breaking capacity of its contact spacing also is restricted.

The above-mentioned electromagnetic type relay of a kind of kenel of the prior art at present that is, and inventor of the present utility model is to be different from above-mentioned function mode and construction package, design a kind of relay in addition with single input and single output, in the middle of the electronic circuit that is applicable to the specific occasion, has the effect that makes the contact spacing strengthen and significantly promote the electric arc breaking capacity.

The utility model content

Main purpose of the present utility model provides a kind of relay with single input and single output, thereby is different from relay construction of the prior art.By contact of the present utility model galvanic circle mode, can increase the contact spacing, promote the current interruption effect of relay of the present utility model.

Another main purpose of the present utility model provides a kind of relay, this relay mainly passes through the structural design of its fixed terminal, compared with prior art, shortened the entire length of fixed terminal of the present utility model, and the surface and the corresponding salient point of travelling contact of fixed terminal have been omitted, thereby become a complete plane, and then increased the contact spacing, and the effect that obtains to save material and cost.

In order to achieve the above object and effect, relay of the present utility model comprises the middle shell fragment that has a relay coil, to be provided with two travelling contacts, first Lead-through terminal that is provided with a fixed contact and second Lead-through terminal that is provided with a fixed contact, wherein:

Described relay coil electrically conducts and produces the electromagnetic action described middle shell fragment of drive indirectly, each described travelling contact of shell fragment contacts with the fixed contact of described first Lead-through terminal and described second Lead-through terminal respectively in described, form described middle described first Lead-through terminal of shell fragment conducting and described second Lead-through terminal, input to described middle shell fragment by described first Lead-through terminal, through described second Lead-through terminal output, or by described second Lead-through terminal input to described in shell fragment, through described first Lead-through terminal output, form the single input of described relay, the contact control circuit of single output.

Aforesaid relay further include a restriction described in the fixed terminal of displacement of travelling contact of shell fragment, and described travelling contact is corresponding to the fixed contact of described second Lead-through terminal.This moment, the contact spacing was the sum total of both sides contact group, and distance doubles, and has the effect that significantly promotes the electric arc breaking capacity.

Description of drawings

Fig. 1 is the enclosing cover of relay embodiment of the present utility model and the decomposing state schematic perspective view of base;

Fig. 2 is the assembled state schematic perspective view that does not make up enclosing cover and relay coil of embodiment of the present utility model;

Fig. 3 is the assembled state schematic perspective view that does not make up enclosing cover of embodiment of the present utility model;

Fig. 4 is the operate condition schematic diagram of the middle shell fragment magnetic force absorption of embodiment of the present utility model;

Fig. 5 is the circuit diagram of relay embodiment of the present utility model;

Fig. 6 is the circuit diagram of a kind of relay of the prior art.

Description of reference numerals is as follows:

Relay 1, enclosing cover 11, base 12, support 13, middle shell fragment 14, travelling contact 141, magnetic pole 15, relay coil 16, travelling contact terminal 2, first line wheel terminal 3, second line wheel terminal 4, first Lead-through terminal 5, fixed contact 51, second Lead-through terminal 6, fixed contact 61, fixed terminal 7, relay 9, relay coil 91, coil Lead-through terminal 92, coil Lead-through terminal 93, input terminal 94, contact switch 95, contact switch 951, lead-out terminal 96, lead-out terminal 97.

Embodiment

For making your auditor can further understand structure of the present utility model, feature and other purposes, now be described in detail as follows with accompanying drawing in conjunction with appended preferred embodiment is attached, the illustrated embodiment of this accompanying drawing only is used to illustrate the technical solution of the utility model, and non-limiting the utility model.

For the assembled configuration relation of modular construction among the embodiment of the present utility model and each assembly clearly is described, please cooperate and consult Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 demonstrates relay 1 of the present utility model and includes an enclosing cover 11, the base 12 of one sealing enclosing cover 11, one inserts the support 13 that is fixed on the base 12, the middle shell fragment 14 of one end assembled configuration on support 13, one assembled configuration is at the magnetic pole 15 of the other end of middle shell fragment 14, one assembled configuration on support relay coil 16 and an end of relay coil 16 with respect to magnetic pole 15, insertion is fixed on the travelling contact terminal 2 of base 12, the other end is fixedlyed connected with middle shell fragment 14 with support 13, one inserts first line wheel terminal 3 that is fixed on the base 12, one inserts second line wheel terminal 4 that is fixed on the base 12, one inserts first Lead-through terminal 5 that is fixed on the base 12, one inserts second Lead-through terminal 6 and that is fixed on the base 12 inserts the fixed terminal 7 that is fixed on the base 12, wherein:

Should middle shell fragment 14 be general L-shaped members, an end of middle shell fragment 14 be fixed on the outside of an end of this support 13, and the other end then assembled configuration has two travelling contacts 141, and extends towards the direction of fixed terminal 7; The travelling contact 141 of these magnetic pole 15 assembled configuration shell fragment 14 in this is other; This relay coil 16 is the unicoil kenel, and an end assembled configuration of relay coil 16 is on this support 13, and the other end is then located corresponding to the below of this magnetic pole 15; This first line wheel terminal 3 and this second line wheel terminal 4 electrically connect conducting with relay coil 16 respectively; One end of this first Lead-through terminal 5 passes and is arranged on outside this base 12, and the other end then travelling contact 141 in middle shell fragment 14 extends, and is provided with the fixed contact 51 of a corresponding travelling contact 141; One end of this second Lead-through terminal 6 passes and is arranged on outside this base 12, and the other end then extends towards another travelling contact 141 of middle shell fragment 14, and is provided with the fixed contact 61 of corresponding another travelling contact 141; The end of this fixed terminal 7 prevents that with respect to the position of the fixed contact 61 of this second Lead-through terminal 6 the resetting of travelling contact 141 of shell fragment 14 in this from going beyond the limit.

For the manner of execution of embodiment of the present utility model clearly is described, with and the effect and the purpose that can reach, please cooperate and consult Fig. 2 to Fig. 5.

This relay 1 is to electrically connect relay coil 16 with first line wheel terminal 3 and second line wheel terminal 4, make relay coil 16 energisings produce electromagnetic force, shell fragment 14 in driving simultaneously with electromagnetic force absorption magnetic pole 15, each travelling contact 141 of shell fragment 14 contacts with the fixed contact 51 of first Lead-through terminal 5 respectively in allowing, and contact with the fixed contact 61 of second Lead-through terminal 6, as shown in Figure 5, formed a control circuit, this control circuit is by 5 inputs of first Lead-through terminal, shell fragment 14 conducting to the second Lead-through terminals 6 in the warp, and with 6 outputs of second Lead-through terminal, also can be by 6 inputs of second Lead-through terminal, shell fragment 14 conducting to the first Lead-through terminals 5 in the warp, and, become a kind of single input with 5 outputs of first Lead-through terminal, the control relay circuit of single output.

In addition, this travelling contact terminal 2 is as the winding between shell fragment 14 in fixing and the support 13, there is not the effect of actual conduction, this moment, the contact spacing was the sum total (i.e. two travelling contacts 141 of the end institute assembled configuration of middle shell fragment 14 respectively and between fixed contact 51 and the fixed contact 61 apart from summation) of both sides contact group, therefore distance doubles, and has the effect that significantly promotes the electric arc breaking capacity.

The fixed terminal 7 that the utility model adopted is compared with design of the prior art, and the utility model has shortened the length of fixed terminal 7 and omitted the salient point of existing design, has the effect that increases the contact spacing, promotes relay current interruption ability; This fixed terminal 7 is shorter than fixed terminal of the prior art in addition, not only saved material cost, and because the material of middle shell fragment 14 has elasticity, and middle shell fragment 14 can be from characteristic and its structural design of horizontal reset, thereby each travelling contact 141 of the end institute assembled configuration of shell fragment 14 is able to synchronization action in making, and when the travelling contact 141 of an end is subjected to fixed terminal 7 restrictions in the central shell fragment 14, the travelling contact 141 of the other end also stops swinging immediately, therefore the utility model is except having above-mentioned effect, the running of the travelling contact 141 of shell fragment 14 in more can not influencing.

What need statement is that above-mentioned utility model content and embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the qualification to the utility model protection range.Those skilled in the art are in spirit of the present utility model and principle, when doing various modifications, being equal to and replacing or improve.Protection range of the present utility model is as the criterion with appended claims.

Claims

1. a relay is characterized in that, described relay comprises the middle shell fragment that has a relay coil, to be provided with two travelling contacts, first Lead-through terminal that is provided with a fixed contact and second Lead-through terminal that is provided with a fixed contact, wherein:

2. relay as claimed in claim 1 is characterized in that, described relay further include a restriction described in the fixed terminal of displacement of travelling contact of shell fragment, and described travelling contact is corresponding to the fixed contact of described second Lead-through terminal.