CN216773137U

CN216773137U - Thin electromagnetic relay

Info

Publication number: CN216773137U
Application number: CN202122825595.2U
Authority: CN
Inventors: 杨勇; 张洪波
Original assignee: Shenzhen Yiruilai Technology Co ltd
Current assignee: Shenzhen Yiruilai Technology Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-06-17
Anticipated expiration: 2032-04-07

Abstract

The utility model discloses a thin electromagnetic relay, which belongs to the technical field of relays and comprises a base, wherein two static terminals are fixedly arranged on one side of the bottom of the base, a common terminal is fixedly arranged at the bottom of the base and between the two static terminals, a push clamp is arranged at the top of the base, a movable spring is fixedly arranged at the top of the common terminal, and one end of the push clamp penetrates through the movable spring and extends to the outside of the movable spring; the side surface of the base is provided with the opening shape so as to be convenient for inserting the thin coil assembly, the coil is integrally inserted towards the output end, a coil winding window of the coil can be enlarged, meanwhile, the base adopts a full-surrounding mode, the input or output end insulation distance is improved, the winding part of the coil rack adopts a half-surrounding structure, namely, one side of the winding part is arranged in an opening mode, the area of the winding window can be increased, the magnetic circuit efficiency is improved, the output load capacity is improved, and the medium voltage resistance between the output end and the input end is increased under the condition that the product structure volume is not changed.

Description

Thin electromagnetic relay

Technical Field

The utility model relates to the technical field of relays, in particular to a thin electromagnetic relay.

Background

In electromagnetic relay wide application and industrial automation control, because scientific and technological development needs, it is littleer to require the relay volume, and sensitivity is higher, and the operational reliability is higher, and the relay is the components and parts of a weak current control forceful electric power, and for safety, input (coil) and output (contact) have the insulation requirement, generally, the insulation distance is big more, and its security is better.

The existing technology generally adopts a semi-open structure for an ultra-thin relay, the side surface of the whole coil is assembled, in order to meet a certain insulation distance, a certain distance can be designed between an input end (coil side) and an output end (contact) to meet a certain insulation distance, however, the structure can compress the length of a coil winding under the condition that the structure volume is not changed, a winding window is reduced, the electromagnetic attraction force generated by a magnetic circuit is small, the mechanical counter force of an output contact part is small, the load breaking capacity is low, in addition, due to the structural limitation, the medium withstand voltage is limited to a certain degree, and therefore a thin electromagnetic relay needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a thin electromagnetic relay, which has the advantages of improving the efficiency of a magnetic circuit, improving the output load capacity and increasing the medium withstand voltage between an output end and an input end under the condition that the structural volume of a product is not changed, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides a thin electromagnetic relay which comprises a base, wherein a normally open static terminal and a normally closed static terminal are fixedly installed on one side of the bottom of the base respectively, a public terminal is fixedly installed at the bottom of the base and positioned between the normally open static terminal and the normally closed static terminal, a push clamp is arranged at the top of the base, a movable spring is fixedly installed at the top of the public terminal, one end of the push clamp penetrates through the movable spring and extends to the outside of the movable spring, and a thin coil assembly is inserted into an inner cavity of the base in a sliding manner;

the thin coil assembly comprises a coil rack, one side of the coil rack is open, a coil is wound on the surface of the coil rack, a yoke iron is fixedly arranged in the inner cavity of the base and below the coil rack, and an iron core is inserted in the inner cavity of the coil rack.

Preferably, one side of the base is provided with an opening.

Preferably, the winding part of the coil frame is provided with an open structure and is provided with an opening at one side.

Preferably, the iron core passes through the coil former and is riveted with the yoke, one side of base and be located the yoke and the corresponding department of iron core and install armature, one end of iron core runs through the coil former and extends to the outside of coil former and rivets with the surface of yoke.

Preferably, the other end of the push card is fixedly installed on the surface of the armature.

Preferably, a compression spring is arranged between the coil frame and the yoke iron, and a horizontal part of the compression spring is inserted between the coil frame and the yoke iron.

Preferably, the top of the pressure spring is riveted with an armature, the surface of the armature is provided with a clamping groove, and the armature is clamped with the surface of the push clamp through the clamping groove.

Preferably, the surfaces of the normally open static terminal and the normally closed static terminal are both fixedly provided with a static contact, and the surface of the common terminal is fixedly provided with a movable contact.

Compared with the prior art, the utility model has the beneficial effects that:

1. the side surface of the base is provided with the opening shape, so that the thin coil component can be conveniently inserted, the coil is integrally inserted towards the direction of the output end, a coil winding window can be enlarged, and meanwhile, the base adopts a full-surrounding mode, so that the insulation distance of the input end or the output end is increased;

2. the winding part of the coil rack adopts a surrounding structure, namely is arranged in an open manner, so that the area of a winding window can be increased, the efficiency of a magnetic circuit is improved, the output load capacity is improved, the medium withstand voltage between an output end and an input end is increased under the condition that the structural volume of a product is not changed, the iron core/yoke iron and the coil are integrally inserted into the inner cavity of the base, and the high insulation distance between the coil and the contact is realized through the wall of the base.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic structural diagram of a base according to the present invention;

FIG. 4 is a schematic view of the interior of the base of the present invention;

fig. 5 is a schematic structural diagram of a thin coil assembly according to the present invention.

In the figure: 1. a base; 2. a normally open stationary terminal; 3. a common terminal; 4. a coil terminal; 5. pushing the card; 6. A movable reed; 7. a bobbin; 8. a coil; 9. a yoke; 10. an iron core; 11. an opening; 12. a pressure spring; 13. a card slot; 14. an armature; 15. a stationary contact; 16. a movable contact; 17. a normally closed stationary terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides a thin electromagnetic relay, which includes a base 1, two stationary terminals 2 are fixedly installed on one side of the bottom of the base 1, a common terminal 3 is fixedly installed at the bottom of the base 1 and between the two stationary terminals 2, a push card 5 is arranged on the top of the base 1, a movable spring 6 is fixedly installed on the top of the common terminal 3, one end of the push card 5 penetrates through the movable spring 6 and extends to the outside of the movable spring 6, a thin coil assembly is inserted into an inner cavity of the base 1 in a sliding manner, a stationary contact 15 is fixedly installed on the surface of the stationary terminal 2, a movable contact 16 is fixedly installed on the surface of the common terminal 3, an opening 11 is opened on one side of the base 1, and the surface of a coil frame 7 is connected with the inner wall of the opening 11 in a sliding manner;

the purpose of outputting load can be achieved by arranging two static terminals 2 and a common terminal 3, the two static terminals 2 can be prevented from contacting with the common terminal 3 by arranging a partition plate, the input and output actions can be conveniently performed by arranging a push card 5, the load output is performed by arranging a static contact 15 and a movable contact 16 which are matched with the static terminals 2 and the common terminal 3, the side surface of the base is arranged into an opening shape so as to be convenient for inserting a thin coil component, and the whole coil is inserted towards the direction of an output end;

the thin coil component comprises a coil rack 7, one side of the winding part of the coil rack 7 is open, a coil 8 is wound on the surface of the coil rack 7, a yoke 9 is fixedly arranged in the inner cavity of the base 1 and below the coil rack 7, an iron core 10 is inserted in the inner cavity of the coil rack 7, the iron core 10 penetrates through the coil rack 7 and is riveted with the yoke 9, an armature 14 is arranged on one side of the base 1 and at the corresponding position of the yoke 9 and the iron core 10, and one end of the iron core 10 penetrates through the coil rack 7 and extends to the outside of the coil rack 7 to be riveted with the surface of the yoke 9;

the other end of the pushing clamp 5 and the surface of the armature 14 are fixedly installed, two coil terminals 4 are installed at the bottom of the coil rack 7, the horizontal portion of a pressure spring is inserted between the coil rack 7 and the yoke 9, the surface of the pressure spring 12 is fixed between the coil rack 7 and the yoke 9, the surface of the base 1 is fixedly installed with the pressure spring 12, the armature 14 is fixedly installed at the top of the pressure spring 12, a clamping groove 13 is formed in the surface of the armature 14, the armature 14 is clamped with the surface of the pushing clamp 5 through the clamping groove 13, the surface of the armature 14 is riveted with the pressure spring 12, and through the arrangement of the coil rack 7, the thin coil component can be fixedly supported on the coil 8, the thin coil component is fixed in the inner cavity of the base 1, and through the arrangement of the scroll 11 and the iron core 10, the magnetic conduction effect can be achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A thin electromagnetic relay includes a base (1), characterized in that: a normally open static terminal (2) and a normally closed static terminal (17) are fixedly mounted on one side of the bottom of the base (1) respectively, a public terminal (3) is fixedly mounted at the bottom of the base (1) and positioned between the normally open static terminal (2) and the normally closed static terminal (17), a push clamp (5) is arranged at the top of the base (1), a movable spring (6) is fixedly mounted at the top of the public terminal (3), one end of the push clamp (5) penetrates through the movable spring (6) and extends to the outside of the movable spring (6), and a thin coil assembly is inserted into an inner cavity of the base (1) in a sliding mode;

thin coil pack includes coil former (7), one side of coil former (7) is open setting, the surface of coil former (7) has connect coil (8) around, the inner chamber of base (1) and the below fixed mounting that is located coil former (7) have yoke (9), the inner chamber of coil former (7) is pegged graft and is had iron core (10).

2. A thin electromagnetic relay according to claim 1, characterized in that: an opening (11) is formed in one side of the base (1).

3. A thin electromagnetic relay according to claim 1, characterized in that: the winding part of the coil rack (7) is of an open structure and is provided with an opening at one side.

4. A thin electromagnetic relay according to claim 1, characterized in that: iron core (10) pass coil former (7) and yoke (9) riveting, armature (14) are installed to one side of base (1) and the corresponding department that is located yoke (9) and iron core (10), the one end of iron core (10) runs through coil former (7) and extends to the outside of coil former (7) and rivets with the surface of yoke (9).

5. A thin electromagnetic relay according to claim 1, characterized in that: the other end of the push clamp (5) is fixedly arranged on the surface of the armature (14).

6. A thin electromagnetic relay according to claim 1, characterized in that: a pressure spring (12) is arranged between the coil rack (7) and the yoke iron (9), and the horizontal part of the pressure spring (12) is inserted between the coil rack (7) and the yoke iron (9).

7. A thin electromagnetic relay according to claim 6, characterized in that: the top riveting of pressure spring (12) has armature (14), draw-in groove (13) have been seted up on the surface of armature (14), armature (14) are in the same place through draw-in groove (13) and the surperficial joint that pushes away card (5).

8. A thin electromagnetic relay according to claim 1, characterized in that: and the surfaces of the normally open static terminal (2) and the normally closed static terminal (17) are both fixedly provided with a static contact (15), and the surface of the common terminal (3) is fixedly provided with a movable contact (16).