CN105280444B

CN105280444B - Electromagnetic relay

Info

Publication number: CN105280444B
Application number: CN201510744787.7A
Authority: CN
Inventors: 付波; 卢强
Original assignee: Churod Electronics Co Ltd
Current assignee: Churod Electronics Co Ltd
Priority date: 2015-11-03
Filing date: 2015-11-03
Publication date: 2017-11-21
Anticipated expiration: 2035-11-03
Also published as: CN105280444A

Abstract

The present invention discloses a kind of electromagnetic relay, including pedestal, electromagnet coil, iron core, movable iron, moving part, static terminal and moved end, the iron core is installed on the pedestal, the electromagnet coil is wound in outside the iron core, the movable iron is movably arranged on the pedestal, the upper end of the movable iron is connected with the moving part, and the other end of the moving part is connected with the upper end of moved end, and the lower end of moved end and static terminal is fixably attached to the pedestal；The both sides of the edge of the lower end of the movable iron offer opening, pressure section is formed between the end face of the lower end of the opening and the movable iron, extend press keeping section in the both sides of the lower end of the iron core, the press keeping section is placed in the opening and pressed on the pressure section, the press keeping section contacts to form axis with the pressure section, and the movable iron surrounds the axis oscillating.Electromagnetic relay of the present invention has the advantages of compact-sized, easy to assembly.

Description

Electromagnetic relay

Technical field

The present invention relates to a kind of electromagnetic relay, more particularly to a kind of compact-sized, easy to assembly electromagnetic relay.

Background technology

Electromagnetic relay is a kind of to be gone to control larger electric current, higher voltage with less electric current, relatively low voltage Automatic switch.Its realize this switching function be by be arranged inside electromagnet, by magnet spool is passed through compared with Low current so that electromagnet produces magnetic field, adhesive or unclamps movable iron using the generation or disappearance in magnetic field, and then by can Dynamic iron plate drives adhesive or disconnection between electroconductive elastic sheet, realizes the conducting to big current loop.However, as electric equipment is more next More minimizing, existing electromagnetic relay is complicated, for example, the swing of movable iron needs to use york piece and hinge spring, The structure that this results in electromagnetic relay is not compact enough, and assembling is inconvenient, can not increasingly meet the requirement of production design.

The content of the invention

It is an object of the invention to provide a kind of compact-sized, easy to assembly electromagnetic relay.

To achieve these goals, electromagnetic relay provided by the invention, including it is pedestal, electromagnet coil, iron core, movable Iron plate, moving part, static terminal and moved end, the iron core is in vertical and be fixably attached to the pedestal, the electromagnetism iron wire Circle is wound in outside the iron core, and the movable iron is movably arranged on the pedestal in vertical and lower end, the movable iron The upper end of piece is connected with the moving part, and the other end of the moving part is connected with the upper end of moved end, moved end And the lower end of static terminal is fixably attached to the pedestal；The both sides of the edge of the lower end of the movable iron offer opening, institute State to be open and form pressure section between the end face of the lower end of the movable iron, pressure holding is extended in the both sides of the lower end of the iron core Portion, the press keeping section are placed in the opening and pressed on the pressure section, and the press keeping section contacts shape with the pressure section Into axis, the movable iron surrounds the axis oscillating.

Compared with prior art, because the present invention in the lower end of the movable iron opens up opening, the opening and institute are made State and pressure section formed between the end face of the lower end of movable iron, and press keeping section is set in the lower end of the iron core, by will described in Press keeping section is snapped into the opening, so as to by the press keeping section pressure holding on the pressure section, and the press keeping section and institute The contact position for stating pressure section forms axis, therefore, the movable iron can be made to be realized around the axis and swung, without using The supplementary structures such as york piece, it is simple and compact for structure, be advantageous to the production and assembling of the electromagnetic relay of small size.

It is preferred that the electromagnetic relay also includes hook shell fragment, the hook shell fragment is installed on the pedestal, described One end of hook shell fragment upwardly extends to form elastic portion, and the elastic portion flexibly presses on the outside of the movable iron, makes The lower end of the movable iron is close proximity to the end face of the lower end of the iron core；The movable iron and the iron core heart are pressed close to can be with The magnetic effect of the electromagnet of enhancing, so that the upper end of its more easily movable iron described in adhesive.

Specifically, the middle part of the hook shell fragment forms the recess for accommodating the pressure section, and the recess can guarantee that described Pressure section coordinate with the press keeping section it is reliable so that the movable iron swing it is stable.

Specifically, the horizontal-extending formation fixed part of the other end of the hook shell fragment, fixed part described in the iron core pressure holding In on the pedestal.By using the fixed part, the hook shell fragment can be made to be fixed on the pedestal, so as to ensure State the elasticity of elastic portion effectively.

It is preferred that the recess is in inverted trapezoidal structure.

It is preferred that the lower surface of the pressure section to curved between outside, interferes when being moved to prevent rotation stop.

Brief description of the drawings

Fig. 1 is the structure chart of electromagnetic relay of the present invention.

Fig. 2 is the exploded view of electromagnetic relay of the present invention.

Fig. 3 is the movable iron and the side view of hook shell fragment of electromagnetic relay of the present invention.

Embodiment

To describe the technology contents of the present invention, construction feature, the effect realized in detail, below in conjunction with embodiment and match somebody with somebody Accompanying drawing is closed to be explained in detail.

As shown in Figure 1 and Figure 2, electromagnetic relay 100 of the present invention includes pedestal 1, electromagnet coil 2, iron core 3, movable iron 4th, moving part 5, static terminal 6 and moved end 7, the iron core 3 take the shape of the letter U structure, and the iron core 3 is in vertical and be fixably attached to institute State pedestal 1；The electromagnet coil 2 is wound in outside the iron core 3；The movable iron 4 is in vertical structure, and is vertically set Put and lower end be movably arranged on the pedestal 1, the side of the movable iron 4 faces the end face of the iron core 3, it is described can The upper end of dynamic iron plate 4 and the clamping of moving part 5 and be connected, the upper end company of the other end of the moving part 5 and moved end 7 Connect, the lower end of moved end 7 and static terminal 6 is fixedly mounted on the pedestal 1, and the static terminal 6 is positioned at described dynamic Between terminal 7 and the movable iron 4.

Fig. 2 and Fig. 3 is referred to again, and the both sides of the edge of the lower end of the movable iron 4 offer opening 41, the opening 41 Pressure section 42, the two lateral movable iron of the lower end of the iron core 3 are formed between the end face of the lower end of the movable iron 4 Press keeping section 31 is extended in the direction of piece 4, and the press keeping section 31 is placed in the opening 41 and pressed on the pressure section 42, described Press keeping section 31 is contacted to form axes O with the front edge of the pressure section 42, and the movable iron 4 is swung around the axes O. The lower surface of the pressure section 42 is between outside curved 43, the pressure section 42 during preventing that the movable iron 4 from swinging Interfered with surrounding.

Fig. 2 and Fig. 3 is referred to again, and the electromagnetic relay 100 also includes hook shell fragment 8, and the hook shell fragment 8 is installed on On the pedestal 1, one end of the hook shell fragment 8 upwardly extends to form elastic portion 81, and the elastic portion 81 flexibly presses on The outside of the movable iron 4, make the movable iron 4 lower end be close proximity to the iron core 3 lower end end face, and the bullet Property portion 81 elastic force be less than sub 7 restoring forces of itself in the moved end so that moved end 7 can divide with the static terminal 6 From；The magnetic that the movable iron 4 presses close to the electromagnet that can strengthen with the heart of iron core 3 is imitated, so that its more easily adhesive The upper end of the movable iron 4.The middle part of the hook shell fragment 8 is bent to form the recess 82 for accommodating the pressure section 42, described Recess 82 is in inverted trapezoidal structure；The recess 82 can guarantee that the reliability that the pressure section 42 coordinates with the press keeping section 31, from And it is stable to swing the movable iron 4.The other end of the hook shell fragment 8 is horizontal-extending to form fixed part 83, the iron core 3 Fixed part 83 described in pressure holding is on the pedestal 1.It by using the fixed part 83, can be fixed on the hook shell fragment 8 On the pedestal 1, so as to ensure the elasticity of the elastic portion 81 effectively.

Summary, when the electromagnet coil 2 leads to low current, the iron core 3 produces magnetic field, passes through magnetic field suction institute State the upper end of movable iron 4, the movable iron 4 swings close and upper end and presses close to the iron core 3, at the same time, it is described can The upper end of dynamic iron plate 4 drives the moving part 5 to translate, and the moving part 5 drives the upper end of moved end 7 close to the static side Son 6, when moved end 7 contradicts with the static terminal 6, the static terminal 6 and the moved end 7 is conductive and turning circuit, Heavy current passes through the static terminal 6 and moved end 7.

Compared with prior art, because the present invention in the lower end of the movable iron 4 opens up opening 41, the opening 41 is made Pressure section 42 is formed between the end face of the lower end of the movable iron 4, and press keeping section 31 is set in the lower end of the iron core 3, By by the press keeping section 31 snap into it is described opening 41 in, so as to by the pressure holding of press keeping section 31 in the pressure section 42 On, and the contact position of the press keeping section 31 and the pressure section 42 forms axes O, therefore, can surround the movable iron 4 The axes O, which is realized, to be swung, simple and compact for structure without using supplementary structures such as york pieces, is advantageous to the electromagnetism relay of small size The production and assembling of device 100；And by setting the hook shell fragment 8, can make the movable iron 4 lower end press close to it is described The lower end of iron core 3, effectively strengthen the magnetic effect of iron core 3, make it easier to movable iron 4 described in adhesive, performance is more stable.

The above disclosed right model for being only the preferred embodiments of the present invention, the present invention can not being limited with this certainly Enclose, therefore the equivalent variations made according to scope of the present invention patent, still fall within the scope that the present invention is covered.

Claims

1. a kind of electromagnetic relay, including pedestal, electromagnet coil, iron core, movable iron, moving part, static terminal and moved end, The iron core is in vertical and is fixably attached to the pedestal, and the electromagnet coil is wound in outside the iron core, described movable Iron plate is movably arranged on the pedestal in vertical and lower end, and the upper end of the movable iron is connected with the moving part, institute The other end for stating moving part is connected with the upper end of moved end, and the lower end of moved end and static terminal is fixably attached to institute State pedestal；It is characterized in that：The both sides of the edge of the lower end of the movable iron offer opening, the opening and the movable iron Pressure section is formed between the end face of the lower end of piece, press keeping section is extended in the both sides of the lower end of the iron core, and the press keeping section houses In the opening and press on the pressure section, the press keeping section contacts to form axis with the pressure section, the movable iron Piece surrounds the axis oscillating.

2. electromagnetic relay as claimed in claim 1, it is characterised in that：The electromagnetic relay also includes hook shell fragment, institute State hook shell fragment to be installed on the pedestal, one end of the hook shell fragment upwardly extends to form elastic portion, the elastic portion bullet Press on to property the outside of the movable iron, make the movable iron lower end be close proximity to the iron core lower end end face.

3. electromagnetic relay as claimed in claim 2, it is characterised in that：The middle part of the hook shell fragment is formed to be supported described in receiving The recess of splenium.

4. electromagnetic relay as claimed in claim 2, it is characterised in that：The horizontal-extending formation of the other end of the hook shell fragment Fixed part, fixed part is on the pedestal described in the iron core pressure holding.

5. electromagnetic relay as claimed in claim 3, it is characterised in that：The recess is in inverted trapezoidal structure.

6. electromagnetic relay as claimed in claim 1, it is characterised in that：The lower surface of the pressure section is to being in arc between outside Shape, interfered when being moved to prevent rotation stop.