CN103187207A

CN103187207A - Relay with four contacts

Info

Publication number: CN103187207A
Application number: CN2011104508264A
Authority: CN
Inventors: 不公告发明人
Original assignee: JIANGSU ZHNEGQI ELECTRIC CO Ltd
Current assignee: JIANGSU ZHNEGQI ELECTRIC CO Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2013-07-03

Abstract

A relay with four contacts comprises a coil, a substrate, a cover shell, a yoke, an armature, reeds, normally-closed contact pins, normally-open contact pins, input electrode pins, a positive-and-negative electrode pin, movable contacts, normally-closed contacts, normally-open contacts, an insulation balance plate, a coil reinforcing piece, a support, a tension spring, a hook, an insulation plate and a positive-and-negative connection line. The relay with the four contacts is characterized in that the yoke penetrates through the coil and is fixedly arranged on the coil reinforcing piece, a U-shaped notch is formed at the upper end of the support, the insulation balance plate is fixedly connected with the armature, the reeds are distributed on the insulation balance plate in parallel and are fixed in a hot-pressing mode, two movable contacts are arranged at the front end of each reed, the armature is arranged on the support in a clamped mode, the tension spring is connected with an agraffe and the hook in a hanging mode, the normally-closed contact pins are fixedly arranged on the normally-closed contacts and correspond to the movable contacts, the normally-open contacts of the normally-open contact pins correspond to the movable contacts in an upward mode, the movable contacts and the normally-closed contacts are in normally-closed states under the action of the tension spring, the input electrode pins are connected with the reeds through guide wires, and the positive-and-negative electrode pin is connected with the coil through a connection line.

Description

Four contact relays

Technical field

The present invention relates to a kind of relay.

Background technology

Relay is a kind of electronic control device, it has control system (claim not only input circuit) and by control system (but also claiming output loop), usually be applied in the automatic control circuit, in fact use less current to remove to control a kind of " automatic switch " of bigger electric current.In circuit, play effects such as automatic adjusting, safeguard protection, change-over circuit, use very extensive.The deficiency of the relay of Shi Yonging is the processing single-pieceization in the market, and cost is higher, and volume weight is big, and useful life is short, and driving power consumption is big, and switching speed is low.And external some micro-mechanical relays that use can't satisfy synchronizing close to the folding of multiloop contact is controlled, and the coil power consumption is higher, and homogeneity of product is poor.Simultaneously, some relay is also in parallel with controlled electric elements or connect in use, its attract current (being that relay produces the needed minimum current of closed action) or release current (being that relay produces the needed maximum current of release movement) are also constantly alternately changing relay down in working order, and in the practical application, closed path is far longer than release current, this unstable characteristic of relay, often the operate as normal to the controlled electric appliance in the circuit produces certain influence, simultaneously because attract current often will exceed 1.5 times of given electric current, just can guarantee the operate as normal of relay, solenoid is under the function of current that height changes, and very easily coil is consequently damaged in heating.

Summary of the invention

The present invention is exactly for solving the problem that above-mentioned technology exists, and disclosed a kind of four contact relays.Mainly comprise: coil (1), substrate (2), case (3), yoke (4), armature (5), reed (6a, 6b), normally-closed contact pin (7a, 7b), normally opened contact pin (8a, 8b), input utmost point pin (9a, 9b), anodal pin (10), negative pole pin (10 '), moving contact (11a, 11a ', 11b, 11b '), normally-closed contact (12a, 12b), normally opened contact (13a, 13b), insulation balance plate (14), coil girth member (15), support (16), extension spring (17), hook (18), lower insulation plate (19), upper insulation plate (19 '), screw (20), positive lead (21), negative lead (21 '), lead (22a, 22b), have contact with (23); It is characterized in that: yoke (4) passes the center of circle of coil (1), the bottom is passed lower insulation plate (19) and is installed with on coil girth member (15), the upper end of yoke (4) is nested with upper insulation plate (19 '), and coil (1) is installed with between lower insulation plate (19) and upper insulation plate (19 '); Coil girth member (15) comprises facade body (15 ') and the support (16) that forms 90 degree angles with the plate face of coil girth member (15), the three in one moulding also forms the structure that the cross section is " L " shape, support (16) upper end arranges " U " v notch v, the bottom arranges hook (18) near the centre of coil girth member (15), support (16) is vertical with coil girth member (15) plate face, and facade body (15 ') connects by screw (20) Luo and is installed with on substrate (2); Substrate (2) is a rectangle bakelite plate body, its inboard be equipped with one with the smaller plate body of its shape equal area, and one-body molded with substrate (2), its edge part forms scalariform; Armature (5) is the plate body that a soft magnetic material that is rectangle is made, (23) are had contact with in rear end pars intermedia setting, armature (5) is symmetrical arranged two circular holes near the position of having contact with (23), insulation balance plate (14) is the rectangle plate body of being made by bakelite, both sides arrange two lug bosses (14 ') near the position of having contact with (23) at an upper portion thereof, connect through strip shape body (24) between two lug bosses, strip shape body (24), two lug bosses (14 ') are all one-body molded with insulation balance plate (14), insulation balance plate (14) posts on armature (5), and by the insulation balance plate (14) clout hot pressing be installed with in last two circular holes of armature (5), make insulation balance plate (14) and armature (5) affixed, reed has two, be respectively reed (6a) and reed (6b), reed (6a) and reed (6b) be distributed in side by side the insulation balance plate (14) above, the rear portion is passed between strip shape body (24) and insulation balance plate (14) hot pressing and is fixed, its end is upturned and is weld part, reed (6a, 6b) all be strip, be copper material, the front end of each reed all arranges two moving contact (11a up and down, 11a ', 11b, 11b '), and correspondence is installed with on reed up and down, armature (4) rear end holding is in the breach of support (16) upper end, extension spring (17) upper end hangs over has contact with on (23), the lower end is articulated on the hook (18) of support (16) bottom, making armature (5) is that fulcrum becomes subtended angle to separate shape with yoke (4) with support (16), normally-closed contact pin (7a), (7b) be preset at the position, close upper end of substrate (2) side by side, its inboard end is installed with normally-closed contact (12a) and (12b) respectively, and make normally-closed contact (12a, 12b) downwards respectively with reed (6a), (6b) the last moving contact of end (11a '), (11b ') corresponding, the normally opened contact pin have two (8a) and (8b) respectively with normally-closed contact pin (7a), (7b) corresponding up and down, its rear end portion is installed with normally opened contact (13a respectively, 13b), make normally opened contact (13a, 13b) upwards and when armature (5) is closed and reed (6a) and following moving contact (11a) (6b), (11b) closed one by one, be reed (6a, front end 6b) places normally-closed contact (12a, 12b) and normally opened contact (13a, 13b), and under the effect of extension spring (17), go up moving contact (11a ', 11b ') respectively with normally-closed contact (12a, 12b) be in normally off; Input utmost point pin (9a, 9b) is preset at respectively on the substrate (2) side by side, be in the below of normally opened contact pin (8a, 8b) and corresponding up and down, the inside end of input utmost point pin (9a, 9b) is connected to the rear end weld part of reed (6a, 6b) by lead (22a, 22b); Anodal pin (10) and negative pole pin (10 ') are preset at the both sides that are in facade body (15 ') on the substrate (2) respectively side by side, keep the gap with facade body (15 ') both sides, and be connected to the both positive and negative polarity of coil (1) respectively through positive lead (21) and negative lead (21 '), case (3) is a transparent plastic product, be cuboid, the one side corresponding with substrate (2) is uncovered shape, and it is airtight (owing to accompanying drawing 1 with the scalariform portion clamping of substrate (2), 2,3 is respectively the side-looking of this invention, so backsight and plan structure schematic diagram are following moving contact 11b, last moving contact 11b ', normally opened contact pin 8b, normally opened contact 13b, all do not indicate among input utmost point pin 9b and the negative lead 21 ' figure).

This invention is owing to adopt vacuum tightness and the mode of dual input and driving shunting, consume energy low, volume is little, simple installation, plug and play is owing to adopted insulation balance plate device, guarantee the folding synchronous operation of contact, be adapted to two-way control consistency of product height.

Description of drawings

Referring to accompanying drawing, Fig. 1 is side-looking structural representation of the present invention;

Fig. 2 is backsight structure chart of the present invention;

Fig. 3 is plan structure schematic diagram of the present invention.

Embodiment

Below in conjunction with width of cloth figure and specific embodiment concrete feature of the present invention is described further.

Referring to accompanying drawing 1, Fig. 2 and Fig. 3 mainly comprise: coil (1), substrate (2), case (3), yoke (4), armature (5), reed (6a, 6b), normally-closed contact pin (7a, 7b), normally opened contact pin (8a, 8b), input utmost point pin (9a, 9b), anodal pin (10), negative pole pin (10 '), moving contact (11a, 11a ', 11b, 11b '), normally-closed contact (12a, 12b), normally opened contact (13a, 13b), insulation balance plate (14), coil girth member (15), support (16), extension spring (17), hook (18), lower insulation plate (19), upper insulation plate (19 '), screw (20), positive lead (21), negative lead (21 '), lead (22a, 22b), have contact with (23); After above-mentioned each assembly installed, in vacuum tank that case (3) is affixed with substrate (2) sealing; Incorporate this utility model into circuit, when coil (1) input dc power is flowed, armature (5) is under the magneticaction of yoke (4), the pulling force that overcomes extension spring (17) is close to yoke (4), driving reed makes normally-closed contact separate with moving contact, downwards with the normally opened contact closure, changed and imported the current path of the utmost point, thereby reached the purpose of control circuit.

Claims

1. four contact relays mainly comprise: coil (1), substrate (2), case (3), yoke (4), armature (5), reed (6a, 6b), normally-closed contact pin (7a, 7b), normally opened contact pin (8a, 8b), input utmost point pin (9a, 9b), anodal pin (10), negative pole pin (10 '), moving contact (11a, 11a ', 11b, 11b '), normally-closed contact (12a, 12b), normally opened contact (13a, 13b), insulation balance plate (14), coil girth member (15), support (16), extension spring (17), hook (18), lower insulation plate (19), upper insulation plate (19 '), screw (20), positive lead (21), negative lead (21 '), lead (22a, 22b), have contact with (23); It is characterized in that: described yoke (4) passes the center of circle of coil (1), the bottom is passed lower insulation plate (19) and is installed with on coil girth member (15), the upper end of yoke (4) is nested with upper insulation plate (19 '), coil (1) is installed with between lower insulation plate (19) and upper insulation plate (19 '), described girth member (15) is installed with on described substrate (2) through described screw (20), described normally-closed contact pin (7a, 7b), normally opened contact pin (8a, 8b), input utmost point pin (9a, 9b), just reaching pin (10), negative pole pin (10 ') is preset on the described substrate (2), and it is corresponding mutually from top to bottom, described armature (5) is installed with described insulation balance plate (14) hot pressing, described reed (6a, 6b) hot pressing is installed with on insulation balance plate (14), described armature (5) holding is on described support (16), described extension spring (17) articulates described hook (18) and has contact with on (23), and the reed (6a under making, front end 6b) places described normally-closed contact pin (7a respectively, 7b) with normally opened contact pin (8a, normally-closed contact (12a 8b), 12b) and normally opened contact (13a, 13b), and under the effect of extension spring (17), described moving contact (11a ', 11b ') with normally-closed contact (12a, 12b) be in normally off, described input utmost point pin (9a, 9b) respectively through lead (22a, 22b) with reed (6a, 6b) connect, described anodal pin (10) negative pole pins (10 ') are respectively through positive lead (21), negative lead (21 ') is connected with coil, and described case (3) seals affixed in vacuum tank with described substrate (2).

2. four contact relays according to claim 1, it is characterized in that: described coil girth member (15) comprises facade body (15 ') and the support (16) that forms 90 degree angles with the plate face of coil girth member (15), the three in one moulding also forms the structure that the cross section is " L " shape, described support (16) upper end arranges " U " v notch v, the bottom arranges hook (18) near the centre of coil girth member (15), support (16) is vertical with coil girth member (15) plate face, and described facade body (15 ') connects by screw (20) Luo and is installed with on substrate (2).

3. four contact relays according to claim 1, it is characterized in that: described substrate (2) is a rectangle bakelite plate body, its inboard be equipped with one with the smaller plate body of its shape equal area, and one-body molded with described substrate (2), its edge part forms scalariform; Described armature (5) is the plate body that a soft magnetic material that is rectangle is made, (23) are had contact with in rear end pars intermedia setting, described armature (5) is symmetrical arranged two circular holes near the position of having contact with (23), described insulation balance plate (14) is the rectangle plate body of being made by bakelite, both sides arrange two lug bosses (14 ') near the position of having contact with (23) at an upper portion thereof, connect through strip shape body (24) between two lug bosses, described strip shape body (24), two lug bosses (14 ') are all one-body molded with insulation balance plate (14), described insulation balance plate (14) posts on armature (5), and by the insulation balance plate (14) clout hot pressing be installed with in last two circular holes of armature (5), make the insulation balance plate (14) with armature (5) affixed.

4. four contact relays according to claim 1, it is characterized in that: described reed has two, be respectively reed (6a) and reed (6b), reed (6a) and reed (6b) be distributed in side by side the insulation balance plate (14) above, the rear portion is passed between strip shape body (24) and insulation balance plate (14) hot pressing and is fixed, its end is upturned and is weld part, described reed (6a, 6b) all be strip, be copper material, the front end of each reed all arranges two moving contact (11a up and down, 11a ', 11b, 11b '), and correspondence is installed with on reed up and down, armature (4) rear end holding is in the breach of support (16) upper end, extension spring (17) upper end hangs over has contact with on (23), the lower end is articulated on the hook (18) of support (16) bottom, and making armature (5) is that fulcrum becomes subtended angle to separate shape with yoke (4) with support (16).

5. four contact relays according to claim 1, it is characterized in that: described normally-closed contact pin has two (7a) and (7b), be preset at the position, close upper end of substrate (2) side by side, its inboard end is installed with normally-closed contact (12a) and (12b) respectively, and makes normally-closed contact (12a, 12b) corresponding with the last moving contact of reed (6a), (6b) end (11a '), (11b ') respectively downwards; Described normally opened contact pin have two (8a) and (8b) respectively with normally-closed contact pin (7a), (7b) corresponding up and down, its rear end portion is installed with normally opened contact (13a respectively, 13b), make normally opened contact (13a, 13b) upwards and when armature (5) is closed and reed (6a) and following moving contact (11a) (6b), (11b) closed one by one, be reed (6a, front end 6b) places normally-closed contact (12a, 12b) and normally opened contact (13a, 13b), and under the effect of extension spring (17), go up moving contact (11a ', 11b ') respectively with normally-closed contact (12a, 12b) be in normally off.

6. four contact relays according to claim 1, it is characterized in that: described input utmost point pin has two (9a, 9b), be preset at side by side respectively on the described substrate (2), be in the below of normally opened contact pin (8a, 8b) and corresponding up and down, the inside end of described input utmost point pin (9a, 9b) is connected to the rear end weld part of reed (6a, 6b) by lead (22a, 22b); Described anodal pin (10) and negative pole pin (10 ') are preset at the both sides that are in facade body (15 ') on the substrate (2) respectively side by side, keep the gap with facade body (15 ') both sides, and be connected to the both positive and negative polarity of coil (1) respectively through positive lead (21) and negative lead (21 '); Described case (3) is a transparent plastic product, is cuboid, and the one side corresponding with substrate (2) is uncovered shape, and airtight with the scalariform portion clamping of substrate (2).