CN219066719U

CN219066719U - Connection structure of reed relay coil former and coil pin

Info

Publication number: CN219066719U
Application number: CN202223600731.9U
Authority: CN
Inventors: 曹利超; 李竹姑; 聂福大; 关鑫
Original assignee: Xiamen Hongfa Signal Electronics Co ltd
Current assignee: Xiamen Hongfa Signal Electronics Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a connection structure of a coil frame and a coil lead-out pin of a reed relay, wherein the coil frame comprises a middle tubular winding part and two heads connected with two ends of the winding part, one coil terminal is fixedly connected to the two heads respectively, the coil lead-out pin comprises a connecting part and a lead-out pin which are mutually connected, each coil terminal is provided with two connecting ends, one connecting end of each coil terminal is wound with one end of a coil wound on the winding part, and the other connecting end of each coil terminal is welded with the connecting part. Further, the head part is provided with a guide groove which is convenient for the connecting part to be attached to the other connecting end of the coil terminal at the other connecting end of the coil terminal; one side of the connecting part extends upwards to form a welding convex part, and the welding convex part is bonded and welded with the other connecting end of the coil terminal. The utility model is convenient for realizing automatic assembly and improves the production efficiency and the assembly consistency.

Description

Connection structure of reed relay coil former and coil pin

Technical Field

The utility model relates to the technical field of dry spring relay manufacturing, in particular to a connection structure of a dry spring relay coil rack and a coil lead-out pin.

Background

The dry spring relay is mainly divided into a skeleton-free type and an embedded type (with a skeleton) according to the structural form of the coil skeleton, and the skeleton-free type dry spring relay has the advantages that the skeleton is omitted, the space is saved, and the structure is simpler; however, the whole assembly process can be basically realized only by a manual operation mode, and the problems of low automation degree, high assembly difficulty, low positioning precision and poor assembly consistency can be brought. In the existing dry reed relay with a framework structure, since the lead-out pins and the coil framework are mostly assembled in a plug-in or discrete mode (for example, terminals are plugged in a base part), the coil winding and the coil are electrically connected with the coil lead-out pins to be assembled separately, and the automatic assembly is difficult to realize. And secondly, the coil lead-out pins and the coil framework do not have a self-positioning function, and the assembly precision is not high.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a connecting structure of a coil frame and a coil leading-out pin of a reed switch, which is convenient for realizing automatic assembly and improving the production efficiency and the assembly consistency.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a connection structure of a coil frame and coil leading-out pins of a reed relay comprises a middle tubular winding part and two heads connected with two ends of the winding part, wherein the two heads are respectively fixedly connected with a coil terminal, each coil leading-out pin comprises a connecting part and a leading-out pin which are mutually connected, each coil terminal is provided with two connecting ends, one connecting end of each coil terminal is wound with one end of a coil wound on the winding part, and the other connecting end of each coil terminal is welded with the connecting part.

Further improved, each coil terminal is fixedly connected with the head of the coil frame through injection molding, a mounting through hole of the reed switch is formed in the middle of the coil frame, the mounting through hole penetrates through the two end faces of the head, and each coil terminal is located on one side of the mounting through hole.

Preferably, each of the coil terminals is L-shaped.

Still further, the end of each connecting end of the coil terminal and the coil end is provided with a chamfer, and the end of the other connecting end of each coil terminal and the connecting part is provided with an arc-shaped groove. The coil terminal is convenient to wind with one end of the coil enameled wire through chamfering; the effective contact length of the coil terminal and the connecting part can be increased through the arc-shaped groove, and the welding reliability is improved.

Still further, the head portion is provided with a guide groove at a position close to the other connecting end of the coil terminal for facilitating the fitting of the connecting portion with the other connecting end of the coil terminal. The coil frame and the coil lead-out pin are assembled in a self-positioning way through the mutual matching of the guide grooves and the connecting parts of the coil lead-out pin, so that the aim of improving the assembly precision is fulfilled.

Preferably, the guide groove is provided with a flared opening.

Further improved, each head is provided with a wire passing groove near one connecting end of the coil terminal. The coil enamelled wire can be well protected, and the enamelled wire is prevented from being broken.

Preferably, the connection part of the coil lead-out pin and the lead-out pin are integrally formed by stamping. To facilitate manufacturing.

Further, a welding convex part extends upwards from one side of the connecting part, and the welding convex part is bonded and welded with the other connecting end of the coil terminal.

Further improved, a yielding groove is arranged on the connecting part on one side of the welding convex part, a connecting groove is further arranged on the other side of each connecting part, and the connecting grooves on the two coil leading-out pins are respectively welded and fixedly connected with two ends of one diode through welding flux or laser. The connecting groove can be used for limiting the diode leading-out end, and can also increase the effective welding area of the diode leading-out end and the second connecting part, so that the welding firmness is improved.

According to the utility model, as the two heads are respectively fixedly connected with one coil terminal, the coil lead-out pin comprises the connecting part and the lead-out pin which are connected with each other, each coil terminal is provided with two connecting ends, one connecting end of each coil terminal is wound with one end of a coil wound on the winding part, and the other connecting end of each coil terminal is welded with the connecting part. The coil and the coil lead-out pin are in transition formation electrical connection through the coil terminal fixedly connected to the head of the coil frame, two ends of the enameled wire can be respectively wound with one connecting end of the two coil terminals in the coil winding process, and then the other connecting end of each coil terminal is welded with the connecting part of one coil lead-out pin. Therefore, full-automatic winding of the coil part (comprising the coil frame part and the coil) can be realized, the winding difficulty is reduced, automatic welding of the connecting part of the other connecting end of the coil terminal and one coil leading-out pin is facilitated, automatic assembly is facilitated, the production efficiency and assembly consistency are improved, and the reliability of connection of the two ends of the coil and the coil terminal can be improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an exploded perspective view of a hidden coil portion of the present utility model;

FIG. 3 is a perspective view of a coil form of the present utility model;

FIG. 4 is a perspective view of a coil terminal of the present utility model;

FIG. 5 is a front view of the present utility model;

fig. 6 is a cross-sectional view A-A of fig. 5.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

As shown in fig. 1 to 6, a connection structure of a coil frame and a coil lead-out pin of a reed relay is provided, the coil frame 1 comprises a middle tubular winding part 11 and two heads 12 connected with two ends of the winding part 11, a mounting through hole 13 for a reed switch is arranged in the middle of the coil frame 1, the mounting through hole 13 penetrates through two end surfaces of the heads 12, two coil terminals 2 are fixedly connected to the two heads 12 respectively, the coil lead-out pin 3 comprises a connecting part 31 and a lead-out pin 32 which are connected with each other, each coil terminal 2 is provided with two connecting ends, one connecting end 21 of each coil terminal 2 is wound with one end of a coil 5 wound on the winding part 11, and the other connecting end 22 of each coil terminal 2 is welded with the connecting part 31.

Each coil terminal 2 is fixedly connected with the head 12 of the coil former 1 by injection molding, and each coil terminal 2 is positioned at one side of the mounting through hole 13. Each of the coil terminals 2 is L-shaped.

The end of one connecting end 21 of each coil terminal 2, which is wound around one end of the coil 5, is provided with a chamfer 211, and the end of the other connecting end 22 of each coil terminal 2, which is welded to the connecting portion 31, is provided with an arc-shaped groove 221. The chamfer 211 can play a yielding role, so that the coil 5 enameled wire is convenient to lead into winding at one end, and the winding part is also easy to smoothly put into a die cavity without interference. The arc-shaped grooves 221 can increase the effective contact length of the coil terminal 2 and the connection portion 31, and improve the welding reliability.

The head 12 is provided with a guide groove 121 at the other connecting end 22 of the coil terminal 2 near to the connecting portion 31 to be fitted with the other connecting end 22 of the coil terminal 2. The guide groove 121 is provided with a horn-shaped opening.

Further, a welding protrusion 311 extends upward from one side of the connection portion 31, and the welding protrusion 311 is bonded to the other connection end 22 of the coil terminal 2. When assembled, the welding convex part 311 can be attached to the other connecting end 22 of the coil terminal 2 through the guiding groove 121, so that mutual self-positioning is facilitated. The connecting portion 31 at one side of the welding protrusion 311 is provided with a relief groove 312, which is convenient for assembly.

Each of the heads 12 is provided with a wire passing groove 122 near one connection end of the coil terminal 2.

The other side of each connecting portion 31 is further provided with a connecting groove 313, and the connecting grooves 313 on the two coil lead-out pins 3 are respectively and fixedly connected with two ends of one diode 4 by welding with solder or laser.

The connection part 31 of the coil lead-out pin 3 and the lead-out pin 32 are integrally formed by punching.

In the assembly of this embodiment, the coil 5 is first wound on the winding portion 11, and two ends of the enameled wire of the coil 5 are respectively wound on one connecting end 21 of the two coil terminals 2. Then, by the guide grooves 121, the welding protrusions 311 of the connection portions 31 of the bobbin 1 and the coil lead-out pins 3 are positioned with each other, and each welding protrusion 311 is attached to the other connection end 22 of one coil terminal 2 and is fixedly connected by welding. The automatic assembly is convenient to realize, the assembly positioning accuracy is realized, and the assembly consistency is improved.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A connection structure of reed relay coil former and coil pin, coil former include middle tubulose wire winding portion and connect two heads at wire winding portion both ends, its characterized in that: the coil terminal is fixedly connected to the two heads respectively, the coil lead-out pin comprises a connecting portion and a lead-out pin which are connected with each other, each coil terminal is provided with two connecting ends, one connecting end of each coil terminal is wound with one end of a coil wound on the winding portion, and the other connecting end of each coil terminal is welded with the connecting portion.

2. The connection structure of a reed relay coil and a coil lead-out pin according to claim 1, wherein: each coil terminal is fixedly connected with the head of the coil frame through injection molding, a mounting through hole of the reed switch is formed in the middle of the coil frame, the mounting through hole penetrates through the end faces of the two heads, and each coil terminal is located on one side of the mounting through hole.

3. The connection structure of a reed relay coil and a coil lead-out pin according to claim 1, wherein: each of the coil terminals is L-shaped.

4. A connection structure of a reed relay coil and a coil lead-out pin according to claim 3, wherein: the end part of the connecting end, which is formed by winding one end of each coil terminal and the coil, is provided with a chamfer, and the end part of the other connecting end, which is formed by welding the other connecting end of each coil terminal and the connecting part, is provided with an arc-shaped groove.

5. A connection structure of a reed relay coil and a coil lead-out pin according to claim 3, wherein: the head is provided with a guide groove which is convenient for the connection part to be attached to the other connection end of the coil terminal at the position close to the other connection end of the coil terminal.

6. The connection structure of the reed relay coil and the coil lead-out pin according to claim 5, wherein: the guide groove is provided with a horn-shaped opening.

7. The connection structure of a reed relay coil and a coil lead-out pin according to claim 1, wherein: each head is provided with a wire passing groove near one connecting end of the coil terminal.

8. The connection structure of a reed relay coil and a coil lead-out pin according to claim 1, wherein: the connecting part of the coil lead-out pin and the lead-out pin are integrally formed by stamping.

9. A connection structure of a dry spring relay coil former and a coil lead-out pin according to any one of claims 1 to 8, wherein: one side of the connecting part extends upwards to form a welding convex part, and the welding convex part is bonded and welded with the other connecting end of the coil terminal.

10. The connection structure of the reed relay coil and the coil lead-out pin according to claim 9, wherein: and a yielding groove is formed in a connecting part on one side of the welding convex part, a connecting groove is further formed in the other side of each connecting part, and the connecting grooves on the two coil leading-out pins are fixedly connected with two ends of one diode respectively through welding flux or laser.