CN219716760U

CN219716760U - Coil leading-out pin mounting structure of relay

Info

Publication number: CN219716760U
Application number: CN202320949188.9U
Authority: CN
Inventors: 周振勃; 王友荣; 王爱; 朱依依
Original assignee: Shenle Co ltd
Current assignee: Shenle Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-09-19
Anticipated expiration: 2033-04-20

Abstract

The utility model provides a coil lead-out pin mounting structure of a relay, which comprises a relay shell, a lead-out pin assembly, a coil assembly and an armature, wherein the lead-out pin assembly comprises a conductive piece and an insulating piece which are fixedly connected into a whole, the conductive piece comprises an inner connecting part electrically connected with the coil assembly and an outer connecting part extending to the outside of the relay shell for wiring, and the insulating piece is connected with the relay shell; the insulating piece comprises a first armature limiting part which is positioned on one side of the armature positioning end far away from the coil assembly, and the first armature limiting part forms a limiting effect on the armature positioning end; through being located armature one side on the internal connection portion and setting up first armature spacing portion, not influencing the normal swing of armature when coil switching on/off when playing spacing effect to the armature, improved the stability of relay inside when transporting and using greatly.

Description

Coil leading-out pin mounting structure of relay

Technical Field

The utility model relates to the field of relays, in particular to a coil lead-out pin mounting structure of a relay.

Background

The relay is an electric control device, and is an electric appliance that causes a predetermined step change in the controlled quantity in an electric output circuit when the change in the input quantity reaches a prescribed requirement. It has an interactive relationship between the control system (also called input loop) and the controlled system (also called output loop). It is commonly used in automated control circuits and is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, the circuit plays roles of automatic regulation, safety protection, circuit switching and the like.

When the magnetic circuit is in operation, when the current intensity is too high, the iron core in the coil can generate enough magnetic force to absorb the armature, then the armature swings around the end part which is abutted against the positioning piece, the other end of the end part which is abutted against the positioning piece on the armature pushes the push rod, and the push rod is abutted against the movable contact piece, so that the movable contact piece is separated from the first static contact piece and is abutted against the second static contact piece on the track of the movable contact piece, and the functions of safety protection or a switching circuit and the like are realized. However, the connection mode of the coil lead-out pin and the upper input end of the coil adopts welding fixation, so that the coil lead-out pin is likely to be broken under stress in the production process of the relay, and the coil lead-out pin which is welded and fixed is inconvenient to replace, thereby the whole relay cannot be used and waste is formed.

The applicant invented a coil lead-out pin assembly (CN 202796761U) of a relay before, and the technical scheme is characterized in that the coil lead-out pin assembly comprises a lead-out pin assembly formed by conductive materials, the lead-out pin assembly comprises a clamping part which can be matched with a relay coil in a clamping way and an extension end which is used for extending out of a relay shell, and the clamping part is electrically connected with the extension end. The coil leading-out pin assembly and the relay coil are connected in a clamping mode through the traditional welding fixation, once the leading-out pin assembly is broken or the relay coil is not enabled in the production process, the damaged part is replaced by a new leading-out pin assembly or the relay coil, the operation is convenient, the stability and the operability of the whole relay are improved, and meanwhile, resources are saved.

On the basis, the stability of the internal components of the relay is improved, so that the relay can be well matched in the transportation, installation and use processes, and the lead-out pin component is improved again.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art, and provides a coil lead-out pin mounting structure of a relay, which improves the stability of the coil lead-out pin mounting structure in cooperation with internal components of the relay, and adopts the following technical scheme:

the coil lead-out pin mounting structure of the relay comprises a relay shell, a lead-out pin assembly, a coil assembly and an armature, wherein the lead-out pin assembly comprises a conductive piece and an insulating piece which are fixedly connected into a whole, the conductive piece comprises an inner connecting wire part which is electrically connected with the coil assembly and an outer connecting wire part which extends to the outside of the relay shell for wiring, and the insulating piece is connected with the relay shell; the armature is located one side of the coil assembly, the two ends of the armature are respectively a positioning end and a swinging end, the insulating piece comprises a first armature limiting part located on one side, far away from the coil assembly, of the armature positioning end, and the first armature limiting part forms a limiting effect on the armature positioning end.

Preferably, the insulating piece further comprises a shell installation part arranged between the inner wiring part and the outer wiring part, a second armature limiting part is arranged on the shell installation part, and the second armature limiting part is positioned below the armature to limit the armature; further, the contact surfaces of the first armature limiting part and the second armature limiting part with the armature are cambered surfaces or planes with chamfer angles.

Preferably, a protruding part is arranged at the upper end of the internal connecting part, and a limiting groove for limiting the protruding part is cooperatively arranged on the inner wall of the relay shell; the relay housing is provided with a groove for accommodating the housing mounting part, and the housing mounting part is embedded into the groove.

Preferably, the through hole for the external connection wire part to pass through is formed in the groove, the external connection wire part comprises a first extension part close to the internal connection wire part and a second extension part far away from the internal connection wire part, the diameter of the first extension part is smaller than that of the through hole so that the first extension part can pass through the through hole, and the diameter of the second extension part is larger than that of the through hole so that the second extension part cannot pass through the through hole.

Preferably, the coil assembly is provided with a binding post, the inner connecting portion comprises a clamping groove for forming clamping connection with the binding post, an inward bulge is arranged at the opening end of the clamping groove, and the bulge plays a limiting role on the binding post in the clamping groove.

Preferably, the insulating piece further comprises a transition part arranged between the inner wiring part and the shell mounting part, the first armature limiting part is arranged on the transition part, and the inner wiring part, the transition part, the shell mounting part and the outer wiring part are integrally connected; specifically, the conductive piece composed of the inner wiring part and the outer wiring part is assembled, and then the insulating piece composed of the transition part and the shell mounting part is injection molded outside the conductive piece, so that the conductive piece and the shell mounting part are fixedly connected into a whole.

The beneficial effects of the utility model are as follows: through being located the armature location end on the internal connection portion and keeping away from the one side of coil assembly and set up first armature spacing portion, not influencing the normal swing of armature when coil assembly switch on/off when playing spacing effect to the armature, improved the stability of relay inside when transportation and use greatly.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

Fig. 1 is a schematic view of a relay portion of embodiment 1;

FIG. 2 is a schematic view of the structure of the lead-out pin assembly of embodiment 1;

FIG. 3 is another schematic view of the lead out leg assembly of embodiment 1;

fig. 4 is a schematic view of a part of the relay housing structure in embodiment 1;

FIG. 5 is a schematic diagram showing the pin assembly and coil assembly of embodiment 1;

in the figure, the 1-pin assembly, the 11-internal wiring part, the 111-clamping groove, the 112-protruding part, the 113-opening end, the 12-external wiring part, the 121-first extension part, the 122-second extension part, the 13-transition part, the 131-first armature limiting part, the 14-housing mounting part, the 141-second armature limiting part, the 2-relay coil, the 21-binding post, the 3-armature, the 4-relay housing, the 41-limiting groove, the 42-groove and the 421-through hole.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1-5, a coil lead-out pin mounting structure of a relay comprises a relay shell 4, a lead-out pin assembly, a coil assembly 2 and an armature 3, wherein the lead-out pin assembly 1 comprises a conductive piece and an insulating piece which are fixedly connected into a whole, the conductive piece comprises an inner connecting wire part 11 electrically connected with the coil assembly 2 and an outer connecting wire part 12 extending to the outside of the relay shell 4 for wiring, and the insulating piece is connected with the relay shell 4; the armature 3 is positioned at one side of the coil assembly 2, two ends of the armature 3 are respectively a positioning end and a swinging end, the insulating piece comprises a first armature limiting part 131 positioned at one side of the positioning end of the armature 3 far away from the coil assembly, and the first armature limiting part 131 forms a limiting effect on the positioning end of the armature 3; the method specifically comprises the following steps: the first armature limiting part 131 is located on the right side of the armature 3 to limit the armature 3.

The insulating piece further comprises a shell installation part 14 arranged between the inner wiring part 11 and the outer wiring part 12, a second armature limiting part 141 is arranged on the shell installation part 14, and the second armature limiting part 141 is positioned below the armature 3 to limit the armature 3.

The contact surfaces of the first armature limiting part 131 and the second armature limiting part 141 with the armature 3 are cambered surfaces or planes with chamfer angles so as to reduce collision abrasion of the limiting parts to the armature 3.

The upper end of the inner connecting part 11 is provided with a protruding part 112, and the inner wall of the relay housing 4 is provided with a limit groove 41 for limiting the protruding part 112 in a matching manner, so as to play a role in limiting the whole pin assembly 1.

A groove 42 for accommodating the housing mounting part 14 is formed in the relay housing 4, and the housing mounting part 14 is embedded into the groove 42; the groove 42 is provided with a through hole 421 for the external connection wire portion 12 to pass through, the external connection wire portion 12 includes a first extension portion 121 close to the internal connection wire portion 11 and a second extension portion 122 far away from the internal connection wire portion 11, the diameter of the first extension portion 121 is smaller than that of the through hole 421 so that the first extension portion can pass through the through hole 421, and the diameter of the second extension portion 122 is larger than that of the through hole 421 so that the second extension portion 122 cannot pass through the through hole.

As shown in fig. 5, the coil assembly 2 is provided with a terminal 21, the inner connector 11 includes a slot 111 for forming a snap connection with the terminal 21, and an opening end 113 of the slot 111 has an inward protrusion to play a limiting role on the terminal 21.

The insulator further comprises a transition portion 13 disposed between the inner connection portion 11 and the housing mounting portion 14, the first armature limiting portion 131 is disposed on the transition portion 13, and the inner connection portion 11, the transition portion 13, the housing mounting portion 14 and the outer connection portion 12 are integrally connected.

Further, as shown in fig. 1, the lower end portion of the armature 3 is configured to have a notch, so that the second armature limiting portion 141 cooperates with the notch, so that the coil lead-out pin assembly in the embodiment can further limit the armature 3.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The coil lead-out pin mounting structure of the relay comprises a relay shell (4), a lead-out pin assembly, a coil assembly (2) and an armature (3), wherein the lead-out pin assembly (1) comprises a conductive piece and an insulating piece which are fixedly connected into a whole, the conductive piece comprises an inner connecting part (11) electrically connected with the coil assembly (2) and an outer connecting part (12) extending to the outside of the relay shell (4) for wiring, and the insulating piece is connected with the relay shell (4); the armature (3) is located on one side of the coil assembly (2) and two ends of the armature are a positioning end and a swinging end respectively, and the coil assembly is characterized in that: the insulating piece comprises a first armature limiting part (131) which is positioned at one side of the positioning end of the armature (3) far away from the coil assembly, and the first armature limiting part (131) forms a limiting effect on the positioning end of the armature (3).

2. The coil lead-out pin mounting structure of a relay according to claim 1, wherein: the insulating piece further comprises a shell installation part (14) arranged between the inner wiring part (11) and the outer wiring part (12), a second armature limiting part (141) is arranged on the shell installation part (14), and the second armature limiting part (141) is positioned below the armature (3) to limit the armature (3).

3. The coil lead-out pin mounting structure of a relay according to claim 2, wherein: the contact surfaces of the first armature limiting part (131) and the second armature limiting part (141) and the armature (3) are cambered surfaces or planes with chamfer angles.

4. The coil lead-out pin mounting structure of a relay according to claim 1, wherein: the upper end of the inner connecting part (11) is provided with a protruding part (112), and the inner wall of the relay shell (4) is provided with a limiting groove (41) for limiting the protruding part (112) in a matching manner.

5. The coil lead-out pin mounting structure of a relay according to claim 2, wherein: the relay housing (4) is provided with a groove (42) for accommodating the housing mounting part (14), and the housing mounting part (14) is embedded into the groove (42).

6. The coil lead-out pin mounting structure of a relay according to claim 5, wherein: be provided with in recess (42) and supply external wiring portion (12) to wear out through-hole (421), external wiring portion (12) are including being close to first extension (121) of interior wiring portion (11) and keeping away from interior wiring portion (11) second extension (122), just the diameter of first extension (121) is less than the diameter of through-hole (421) makes it can pass through-hole (421), the diameter of second extension (122) is greater than the diameter of through-hole (421).

7. The coil lead-out pin mounting structure of a relay according to claim 1, wherein: the coil assembly (2) is provided with a binding post (21), the inner connecting portion (11) comprises a clamping groove (111) used for being clamped with the binding post (21), and an opening end (113) of the clamping groove (111) is provided with an inward bulge.

8. The coil lead-out pin mounting structure of a relay according to claim 2, wherein: the insulator further comprises a transition part (13) arranged between the inner wiring part (11) and the shell mounting part (14), the first armature limiting part (131) is arranged on the transition part (13), and the inner wiring part (11), the transition part (13), the shell mounting part (14) and the outer wiring part (12) are integrally connected.