CN210628203U

CN210628203U - Small-sized locking type electromagnetic relay

Info

Publication number: CN210628203U
Application number: CN201922272613.1U
Authority: CN
Inventors: 张彭春; 朱治国
Original assignee: XINDA ELECTRIC CO Ltd
Current assignee: XINDA ELECTRIC CO Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-05-26
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a small-size closed electromagnetic relay, base, shell, coil former, iron core, coil, armature of setting on the base, the movable contact spring that sets up with armature linkage, set up on the coil former and with movable contact spring matched with static contact, one side of coil former on be provided with first yoke, the one end of armature is rotated and is set up on first yoke, and is provided with the second yoke that is connected with the iron core in the coil former, is provided with the permanent magnet that is connected with the second yoke in the coil former, the one end of this permanent magnet is extended outside the coil former and is connected perpendicularly on first yoke. The utility model has the advantages of simple structure, stable and reliable performance, small volume and power saving.

Description

Small-sized locking type electromagnetic relay

Technical Field

The utility model relates to an electromagnetic relay, concretely relates to small-size closed electromagnetic relay.

Background

An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), and is generally applied to an automatic control circuit, and actually is an automatic switch for controlling a larger current and a higher voltage by using a smaller current and a lower voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The magnetic latching relay is a novel relay developed in recent years and is also an automatic switch. The magnetic latching relay is normally kept in the contact open/close state by the magnetic force generated by the permanent magnet. When the contact of the relay needs to be in an open or close state, the relay only needs to excite the coil by positive (negative) direct current pulse voltage, and the relay completes the state conversion of opening and closing instantly. Normally, when the contact is in the hold state, the coil does not need to be energized, and the relay state can be maintained by only the magnetic force of the permanent magnet. The existing magnetic latching electromagnetic relay is unreasonable in structural design and has the defects of complex structure, unreliable performance and large volume.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, small, the small-size closed electromagnetic relay of power saving.

In order to achieve the above object, the utility model discloses a small-size closed electromagnetic relay, base, setting shell, coil former, iron core, coil, armature on the base, the movable contact spring that sets up with armature linkage, set up on the coil former and with movable contact spring matched with static contact, one side of coil former on be provided with first yoke, the one end of armature rotates and sets up on first yoke, and is provided with the second yoke that is connected with the iron core in the coil former, is provided with the permanent magnet that is connected with the second yoke in the coil former, the one end of this permanent magnet is extended outside the coil former and is connected perpendicularly on first yoke.

The beneficial effect of above-mentioned structure is: the permanent magnet is arranged in the coil frame, the on state of the relay can be maintained only by the magnetic force of the permanent magnet under the condition that the coil does not need to be electrified, the electric energy is saved, and the electromagnetic relay can instantly complete the state conversion of opening and closing only by exciting the coil by positive (negative) direct current pulse voltage. And the permanent magnet sets up in the coil former, between first yoke and the second yoke that the permanent magnet was assembled, it is more convenient to assemble to this electromagnetic relay has simple structure, stable performance is reliable, small, the advantage of power saving.

Particularly, the one end of permanent magnet have the lug, one of first yoke be served and be provided with the draw-in groove, the lug block in the draw-in groove, and constitute the joint cooperation of permanent magnet and first yoke. The permanent magnet is connected with the first yoke in a clamping matching mode, so that the permanent magnet and the first yoke are convenient to assemble, and the assembly efficiency of the electromagnetic relay is improved.

Particularly, one of the ends of first yoke correspond the both sides department of draw-in groove and have a joint piece respectively, the coil former on correspond each joint piece department and be provided with the spacing groove of looks adaptation, the joint piece block in the spacing inslot, and constitute the joint cooperation of coil former and first yoke. First yoke iron and coil former adopt the joint cooperation mode to be connected, the assembly of the first yoke iron of being convenient for and coil former has also guaranteed that being connected of first yoke iron and coil former is compacter.

Drawings

Fig. 1 is a perspective view of the internal structure of the embodiment of the present invention.

Fig. 2 is a cross-sectional view of an embodiment of the present invention.

Fig. 3 is a perspective view of the first yoke according to the embodiment of the present invention.

Fig. 4 is an assembly view of the second yoke and the permanent magnet according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1-4, an embodiment of the present invention is a small latching electromagnetic relay, which includes a base 10, a housing disposed on the base 10, a coil frame 11, an iron core 12, a coil 13, an armature 14, a movable contact spring 15 disposed in linkage with the armature 14, and a stationary contact 16 disposed on the coil frame 11 and matched with the movable contact spring 15, wherein a first yoke 17 is disposed on one side of the coil frame 11, one end of the armature 14 is rotatably disposed on the first yoke 17, a second yoke 18 connected to the iron core 12 is disposed in the coil frame 11, a permanent magnet 19 connected to the second yoke 18 is disposed in the coil frame 11, and one end of the permanent magnet 19 extends out of the coil frame 11 and is vertically connected to the first yoke 17.

As shown in fig. 2 and 3, one end of the permanent magnet 19 has a protrusion 191, one end of the first yoke 17 is provided with a slot 171, and the protrusion 191 is engaged with the slot 171 to form a snap fit between the permanent magnet 19 and the first yoke 17. The permanent magnet is connected with the first yoke in a clamping matching mode, so that the permanent magnet and the first yoke are convenient to assemble, and the assembly efficiency of the electromagnetic relay is improved. One end of first yoke 17 on correspond the both sides department of draw-in groove 17 and have a joint piece 172 respectively, coil former 11 on correspond each joint piece 172 department and be provided with the spacing groove 111 of looks adaptation, joint piece 172 block in spacing groove 111, and constitute coil former 11 and first yoke 17's joint cooperation. First yoke iron and coil former adopt the joint cooperation mode to be connected, the assembly of the first yoke iron of being convenient for and coil former has also guaranteed that being connected of first yoke iron and coil former is compacter.

The permanent magnet is arranged in the coil frame, the on state of the relay can be maintained only by the magnetic force of the permanent magnet under the condition that the coil does not need to be electrified, the electric energy is saved, and the electromagnetic relay can instantly complete the state conversion of opening and closing only by exciting the coil by positive (negative) direct current pulse voltage. And the permanent magnet sets up in the coil former, between first yoke and the second yoke that the permanent magnet was assembled, it is more convenient to assemble to this electromagnetic relay has simple structure, stable performance is reliable, small, the advantage of power saving.

Claims

1. The utility model provides a small-size closed electromagnetic relay, base, setting shell, coil former, iron core, coil, armature on the base, with the movable contact spring that armature linkage set up, set up on the coil former and with movable contact spring matched with static contact, its characterized in that: one side of the coil frame is provided with a first yoke, one end of the armature is rotatably arranged on the first yoke, a second yoke connected with the iron core is arranged in the coil frame, a permanent magnet connected with the second yoke is arranged in the coil frame, and one end of the permanent magnet extends out of the coil frame and is vertically connected to the first yoke.

2. The miniature latching electromagnetic relay of claim 1, wherein: the one end of permanent magnet have the lug, one of first yoke be served and be provided with the draw-in groove, the lug block in the draw-in groove, and constitute the joint cooperation of permanent magnet and first yoke.

3. The small latching electromagnetic relay according to claim 1 or 2, characterized in that: one of first yoke serve and correspond the both sides department of draw-in groove and have a joint piece respectively, the coil former on correspond each joint piece department and be provided with the spacing groove of looks adaptation, the joint piece block in the spacing inslot, and constitute the joint cooperation of coil former and first yoke.