CN205984818U

CN205984818U - Electromagnetic relay

Info

Publication number: CN205984818U
Application number: CN201620989489.4U
Authority: CN
Inventors: 胡经演
Original assignee: Zhejiang Zhongji Technology Co ltd
Current assignee: Zhejiang Zhongji Technology Co ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2017-02-22
Anticipated expiration: 2026-08-30

Abstract

The utility model discloses an electromagnetic relay, one side of base is equipped with the protection casing, be equipped with magnet on the base, the surface of magnet is around there being the coil, the outside of magnet is equipped with armature, one side of armature is equipped with the spring, the surface connections of armature has the cassette, the middle part of cassette is equipped with the copper sheet, the bottom of copper sheet is equipped with contact spring piece, be equipped with normally closed contact and normally open contact on the lateral wall of base, the both sides of base all are equipped with the iron sheet, this kind of relay, when the control circuit switch closure, the circuit is connected, current conveyance magnet produces magnetic field, thereby produce the appeal to armature, make contact spring piece and normally open contact contact, the circuit is connected, otherwise switch closure, contact spring piece and normally closed contact are connected, still be equipped with first contact line terminal and second contact line terminal on this kind of electromagnetic relay, make this kind of relay a plurality of electrical apparatus of using of can establishing ties, and can stabilize converting circuit, one side of this kind of relay is equipped with the protection casing, very high safety protection performance has.

Description

A kind of electromagnetic relay

Technical field

This utility model is related to a kind of relay, specially a kind of electromagnetic relay.

Background technology

Electromagnetic relay is a kind of electronic control device, and it has control system (also known as input circuit) and by control system (also known as output loop), is commonly used in automatic control circuit, and it actually goes to control with less electric current, relatively low voltage Larger current processed, one kind " automatic switch " of higher voltage.

But, the effect such as the safeguard protection in circuit of general electromagnetic relay and change-over circuit is not sufficiently stable, and It is not provided with multiple contact terminals on general electromagnetic relay, carry out series connection electricity utilization device.

Accordingly, it would be desirable to design a kind of electromagnetic relay to solve problems.

Utility model content

The purpose of this utility model is to provide a kind of electromagnetic relay, with solve in above-mentioned background technology propose ask Topic.

For achieving the above object, this utility model provides following technical scheme：A kind of electromagnetic relay, including base, prevents Guard shield, Magnet, coil, armature, spring, deck, contact reed, normally-closed contact, normally opened contact, iron plate, the first binding post, Two binding posts, the 3rd binding post, copper cash and copper sheet, the side of described base is provided with described protective cover, and described base sets There is described Magnet, the outer surface of described Magnet is wound with described coil, and the outside of described Magnet is provided with described armature, described armature Side is provided with described spring, and the upper surface of described armature is connected with described deck, and the middle part of described deck is provided with described copper sheet, institute The bottom stating copper sheet is provided with described contact reed, and the side wall of described base is provided with described normally-closed contact and described normally opened contact, The both sides of described base are equipped with described iron plate, and the both sides of described base are additionally provided with described first binding post, described second connect Line terminals and described 3rd binding post, described 3rd binding post passes through described copper cash and connects described copper sheet.

Further, described armature is U-shaped, and is fixedly connected between the side of described armature and described deck.

Further, described protective cover is made up of transparent material.

Further, described base is L-shaped, and the side wall of described base is solid with described normally-closed contact and described normally opened contact Fixed connection.

Further, described deck is fixedly connected with described copper sheet and described contact reed by securing member.

Compared with prior art, the beneficial effects of the utility model are：This kind of electromagnetic relay, by contact spring piece One end be provided with deck, copper sheet is provided with by the middle part in deck, copper sheet by copper cash connect the 3rd contact line end, circuit is connect Contact line end the 3rd, when control circuit switch closure, circuit ON, electric current produces magnetic field by Magnet, thus to armature Produce captivation so that contact reed is contacted with normally opened contact, circuit ON, otherwise switch closure, contact reed is touched with normally closed Point connects, and this kind of electromagnetic relay is additionally provided with the first contact line end and the second contact line end so that this kind of relay can be gone here and there Join multiple electrical appliances, and change-over circuit can be stablized, the side of this kind of relay is provided with protective cover, there is very high safety and prevent Shield performance.

Brief description

Fig. 1 is side-looking figure structure schematic representation of the present utility model；

Fig. 2 is vertical view figure structure schematic representation of the present utility model；

In reference：1st, base；2nd, protective cover；3rd, Magnet；4th, coil；5th, armature；6th, spring；7th, deck；8th, contact Reed；9th, normally-closed contact；10th, normally opened contact；11st, iron plate；12nd, the first binding post；13rd, the second binding post；14th, the 3rd connect Line terminals；15th, copper cash；16th, copper sheet.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.

Refer to Fig. 1-2, this utility model provides a kind of technical scheme：A kind of electromagnetic relay, including base 1, protection Cover 2, Magnet 3, coil 4, armature 5, spring 6, deck 7, contact reed 8, normally-closed contact 9, normally opened contact 10, iron plate 11, first Binding post 12, the second binding post 13, the 3rd binding post 14, copper cash 15 and copper sheet 16, the side of base 1 is provided with protective cover 2, base 1 is provided with Magnet 3, and the outer surface of Magnet 3 is wound with coil 4, and the outside of Magnet 3 is provided with armature 5, and the side of armature 5 sets There is spring 6, the upper surface of armature 5 is connected with deck 7, and the middle part of deck 7 is provided with copper sheet 16, and the bottom of copper sheet 16 is provided with contact spring Piece 8, the side wall of base 1 is provided with normally-closed contact 9 and normally opened contact 10, and the both sides of base 1 are equipped with iron plate 11, and the two of base 1 Side is additionally provided with the first binding post 12, the second binding post 13 and the 3rd binding post 14, and the 3rd binding post 14 passes through copper cash 15 connection copper sheets 16.

Further, armature 5 is U-shaped, and is fixedly connected between the side of armature 5 and deck 7, and armature 5 is produced with Magnet 3 Magnetic field between gravitation or during repulsive force, the side of armature 5 will drive deck 7 to move up or down.

Further, protective cover 2 is made up of transparent material, is easy to observe the working condition of protective cover 2 internal part.

Further, base 1 is L-shaped, and the side wall of base 1 is fixedly connected with normally-closed contact 9 and normally opened contact 10, is easy to Contact reed 8 moves between normally-closed contact 9 and normally opened contact 10.

Further, deck 7 is fixedly connected with copper sheet 16 and contact reed 8 by securing member.

Operation principle：During work, first circuit is connected on the 3rd contact line end 14, when the switch of low-voltage control circuit closes During conjunction, electric current produces magnetic field by the coil 4 of Magnet 3, and armature 5 overcomes spring 6 pulling force to be drawn in the presence of electromagnetic attracting force Magnet 3, so that the contact reed 8 on the deck 7 of armature 5 side is contacted with normally opened contact 10, operating circuit closes, when low When switching off of control circuit of pressure, the current vanishes in coil 4, armature 5 in the presence of spring 6 so that contact reed 8 with Normally opened contact 10 disengages, and contacts with normally-closed contact 9, and operating circuit disconnects, and this kind of relay is provided with the first contact line end 12 He Second contact line end 13, multiple electrical appliances of can connecting.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of electromagnetic relay, including base (1), protective cover (2), Magnet (3), coil (4), armature (5), spring (6), card Seat (7), contact reed (8), normally-closed contact (9), normally opened contact (10), iron plate (11), the first binding post (12), the second wiring Terminal (13), the 3rd binding post (14), copper cash (15) and copper sheet (16) it is characterised in that：The side of described base (1) is provided with Described protective cover (2), described base (1) is provided with described Magnet (3), and the outer surface of described Magnet (3) is wound with described coil (4), the outside of described Magnet (3) is provided with described armature (5), and the side of described armature (5) is provided with described spring (6), described rank The upper surface of ferrum (5) is connected with described deck (7), and the middle part of described deck (7) is provided with described copper sheet (16), described copper sheet (16) Bottom be provided with described contact reed (8), the side wall of described base (1) is provided with described normally-closed contact (9) and described normally opened touches Point (10), the both sides of described base (1) are equipped with described iron plate (11), and the both sides of described base (1) are additionally provided with described first and connect Line terminals (12), described second binding post (13) and described 3rd binding post (14), described 3rd binding post (14) leads to Cross described copper cash (15) and connect described copper sheet (16).

2. a kind of electromagnetic relay according to claim 1 it is characterised in that：Described armature (5) is U-shaped, and described rank It is fixedly connected between the side of ferrum (5) and described deck (7).

3. a kind of electromagnetic relay according to claim 1 it is characterised in that：Described protective cover (2) is by transparent material Make.

4. a kind of electromagnetic relay according to claim 1 it is characterised in that：Described base (1) is L-shaped, and described bottom The side wall of seat (1) is fixedly connected with described normally-closed contact (9) and described normally opened contact (10).

5. a kind of electromagnetic relay according to claim 1 it is characterised in that：Described deck (7) passes through securing member and institute State copper sheet (16) to be fixedly connected with described contact reed (8).