CN211320023U

CN211320023U - Connecting structure of contactor coil framework and wiring terminal

Info

Publication number: CN211320023U
Application number: CN202020012684.8U
Authority: CN
Inventors: 朱金贵
Original assignee: Zhejiang Keshuo Electric Co ltd
Current assignee: Zhejiang Keshuo Electric Co ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-08-21
Anticipated expiration: 2030-01-02

Abstract

The utility model discloses a contactor coil skeleton and binding post's connection structure, include base, upper cover, inlay the coil skeleton of dress in the base and set up in the binding post at base both ends, the coil skeleton is provided with the skeleton groove to base both ends extension respectively, both ends the skeleton inslot all inserts and is equipped with the wiring foot and is provided with and is used for the wiring foot to extend to the opening that binding post formed the conflict, one side lateral wall in skeleton groove is provided with the locating hole, be provided with on the wiring foot with the locating hole cooperation prevents that the wiring foot from deviating from the locating lug in skeleton groove, the diapire in skeleton groove has a stopper to notch direction extension, the wiring foot corresponds the position of stopper is provided with rather than spacing complex spacing groove. The utility model provides a simple structure, the assembly of being convenient for need not adopt shell fragment and the later maintenance's of being convenient for contactor coil skeleton and binding post's connection structure.

Description

Connecting structure of contactor coil framework and wiring terminal

Technical Field

The utility model belongs to the technical field of the contactor, especially, contactor coil skeleton and binding post's connection structure.

Background

The AC contactor is mainly used for the electrical appliance which is frequently connected and disconnected with a circuit in a long distance, and mainly comprises an electromagnetic component, a contact component, an arc extinguishing component and a structural component. The electromagnetic assembly generally comprises a coil, a magnetic yoke iron core, an armature, a reaction spring and the like. When the coil of the AC contactor is electrified, the current flowing through the coil generates a magnetic field, so that the magnetic yoke iron core generates enough attraction to overcome the counter force of the counter spring, the armature is attracted, and the moving contact is driven by the transmission mechanism to be closed so as to switch on the power supply. On the contrary, after the coil is powered off, the armature resets under the action of the reaction spring to drive each contact to recover to the initial state, so that the power supply is disconnected.

In the prior art, because the modular AC contactor has small volume, the modular AC contactor is widely applied. However, due to the limitation of size modulization, the connection between the coil and the terminal is usually performed by soft wire transition soldering, which has the problems of easy falling of the soldering tin and easy breaking of the soft wire, and the assembly process is complicated and the assembly efficiency is extremely low. At present, the elastic pieces are in elastic connection and contact with each other through the elastic pieces, the process of the elastic pieces needing to be fixed on a framework through hot riveting is complex, the requirement on the elasticity of the elastic pieces is high, and the poor connection condition caused by the deformation fatigue of the elastic pieces can occur after long-term use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a simple structure, the assembly of being convenient for need not adopt shell fragment and the later maintenance's of being convenient for contactor coil skeleton and binding post's connection structure.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a contactor coil skeleton and binding post's connection structure, is including inlaying the coil skeleton of dress in the base and setting up in the binding post at base both ends, the coil skeleton extends to the base both ends respectively and is provided with the skeleton groove, both ends the skeleton inslot all inserts and is equipped with the wiring foot and is provided with and is used for the wiring foot to extend to binding post and forms the opening of contradicting, one side lateral wall of skeleton groove is provided with the locating hole, be provided with on the wiring foot with the locating hole cooperation prevents that the wiring foot from deviating from the location lug in skeleton groove, the diapire in skeleton groove extends to the notch direction has a stopper, the wiring foot corresponds the position of stopper is provided with rather than spacing complex spacing groove.

By adopting the scheme, the framework groove is formed in the coil framework, the wiring pins are inserted into the framework groove, positioning can be formed on the wiring pins through the framework groove, the wiring pins are prevented from moving up and down due to the fact that the wiring pins are not influenced when vibration is generated due to magnetic attraction of the coil, the positioning holes in the side wall of one side of the framework groove are matched with the positioning lugs on the wiring pins, the wiring pins are positioned in the framework groove, the wiring pins are prevented from being separated from notches of the framework groove, in order to enable the wiring pins to be kept in stable contact with the wiring terminals, a limiting block is arranged in the framework groove in an extending mode, the limiting block is enabled to be in limiting fit with the limiting grooves on the wiring pins, the wiring pins can be further prevented from sliding, the wiring pins are enabled to be.

As a further arrangement of the present invention, another side wall of the frame groove is provided with a lifting rib for forming transition fit between the wiring pin and the frame groove.

By adopting the scheme, the wiring pins can be enabled to be subjected to the lifting action of the lifting convex ribs after being inserted into the framework grooves through the lifting convex ribs, so that the wiring pins are fully contacted with the side wall of one side of the framework grooves, the positioning convex blocks can be fully matched with the positioning holes, and the tightness of installation between the wiring pins and the framework grooves is improved.

As another configuration of the present invention, the thickness of the frame groove is the same as that of the wiring pin, and the positioning protrusion is in the shape of a circular convex bag.

By adopting the scheme, the thickness of the wiring pin is the same as that of the framework groove, the wiring pin is not influenced by the vibration of the coil, the mounting tightness between the wiring pin and the framework groove is improved, and the precision requirement of the wiring pin and the framework groove is relatively high.

As a further setting of the utility model, the one end that binding post was kept away from to the wiring foot is buckled and is provided with the wrapping post, the position that corresponds the wrapping post on the skeleton groove is provided with the wrapping post of being convenient for and inserts along the wiring foot and establish direction male breach.

By adopting the scheme, the winding post is arranged at one end far away from the wiring terminal, so that the wiring pin can be connected with the coil conveniently, the connection after winding is more difficult to drop, the winding post inserting notch convenient to insert into the framework groove is arranged on the framework, interference can not be formed when the wiring pin is inserted into the framework groove, and the inner space of the base is more reasonable to a certain extent.

As a further setting of the utility model, it stretches out skeleton groove open-ended position and is provided with the brace table that is used for supporting the wiring foot to correspond the wiring foot in the base, the both sides of brace table are provided with the spacing muscle that is used for forming the direction mouth so that the wiring foot packs into.

Adopt above-mentioned scheme, coil skeleton and coil can lead the installation through the direction mouth, and will connect the foot dress to the brace table on can prevent to connect the foot because of the too big bending deformation of atress in the installation, the spacing muscle of both sides can further form spacingly to connecting the foot again, prevents that the wiring foot from rocking to can prevent that coil skeleton and coil from rocking.

As a further arrangement of the utility model, the upper cover corresponds the position of the supporting table is provided with a spacing platform for the butt at the wiring foot.

By adopting the scheme, the wiring pin is abutted to the limiting table on the upper cover and can be prevented from moving up and down under the combined action of the limiting table and the supporting table, and the coil framework and the coil thereof can be prevented from moving up and down.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic exterior view of a contactor according to an embodiment of the present invention;

FIG. 2 is an exploded view of a contactor according to an embodiment of the present invention;

FIG. 3 is a schematic exterior view of an embodiment of the present invention;

FIG. 4 is an exploded view of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a frame according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base in an embodiment of the present invention.

Detailed Description

The specific embodiment of the utility model is shown in fig. 1-6, a connection structure of a coil frame 3 and a connecting terminal 4 of a contactor, which comprises a base 1, an upper cover 2, a coil frame 3 embedded in the base 1 and connecting terminals 4 arranged at two ends of the base 1 and used for electrifying a coil, wherein the coil frame 3 extends towards two ends of the base 1 to form frame slots 31 respectively, connecting pins 5 are inserted into the frame slots 31 at two ends and provided with openings 311 for the connecting pins 5 to extend to the connecting terminals 4 to form a collision, the openings 311 are connected with notches 312 of the frame slots 31, so that the connecting pins 5 can be inserted into the frame slots 31 from the notches 312 conveniently, one side wall of the frame slots 31 is provided with a positioning hole 313, the positioning hole 313 is a round hole, the connecting pins 5 are provided with a positioning bump 51 which is matched with the positioning hole 313 to prevent the connecting pins 5 from being separated from the frame slots 31, the positioning lug 51 is a circular convex hull, so that the wiring pin 5 can be conveniently inserted into the framework groove 31 and can be positioned to a certain extent, a limiting block 314 extends from the bottom wall of the framework groove 31 to the direction of the notch 312, the extending distance of the limiting block 314 is smaller than the depth of the framework groove 31, and a limiting groove 52 which is in limiting fit with the limiting block 314 is arranged at the position, corresponding to the limiting block 314, of the wiring pin 5.

The other side wall of the framework groove 31 is provided with a lifting convex rib 315 for the transition fit of the wiring pin 5 and the framework groove 31. The wiring pin 5 can be fully contacted with the side wall of one side of the framework groove 31 by the lifting action of the lifting convex rib 315 after being inserted into the framework groove 31 through the lifting convex rib 315, the positioning lug 51 can be fully matched with the positioning hole 313, the installation tightness between the wiring pin 5 and the framework groove 31 is improved, and the positioning lug 51 is in a circular convex bag shape.

In the present embodiment, the thickness of the frame groove 31 and the thickness of the terminal pin 5 can be set to be the same, and the close contact between the terminal pin 5 and the frame groove 31 can be ensured to prevent play, but the requirements for the processing technique of the size and the processing precision are relatively high.

One end of the wiring pin 5, which is far away from the wiring terminal 4, is provided with a winding post 53 in a bending manner, a position, corresponding to the winding post 53, on the framework groove 31 is provided with a notch 316 which is convenient for the winding post 53 to be inserted along the insertion direction of the wiring pin 5, and the end part of the winding post 53 is provided with a stop block 531 which is used for preventing the wire on the coil from slipping and dropping off after being wound.

A supporting table 11 for supporting the wiring pins 5 is arranged in the base 1 corresponding to the positions of the wiring pins 5 extending out of the openings 311 of the framework grooves 31, and limiting ribs 12 for forming guide openings 111 so as to facilitate the installation of the wiring pins 5 are arranged on two sides of the supporting table 11. The limiting rib 12 is provided with a guiding arc surface 121 at the guiding opening 111 for facilitating installation of the wiring pin 5.

The upper cover 2 is provided with a limit table 21 for abutting against the wiring pin 5 at a position corresponding to the support table 11.

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a contactor coil skeleton and binding post's connection structure, includes base, upper cover, inlays the coil skeleton of dress in the base and sets up in the binding post at base both ends, its characterized in that: the coil framework extends towards two ends of the base to form framework grooves, wiring pins are inserted into the framework grooves at the two ends and are provided with openings used for the wiring pins to extend to the wiring terminals to form contact, positioning holes are formed in the side wall of one side of each framework groove, positioning lugs matched with the positioning holes to prevent the wiring pins from being separated from the framework grooves are arranged on the wiring pins, a limiting block extends towards the direction of a notch from the bottom wall of each framework groove, and limiting grooves matched with the limiting blocks in a limiting mode are formed in positions, corresponding to the limiting blocks, of the wiring pins.

2. The connecting structure of the contactor coil bobbin and the connecting terminal according to claim 1, characterized in that: and the other side wall of the framework groove is provided with a lifting convex rib for forming transition fit between the wiring pin and the framework groove.

3. The connecting structure of the contactor coil bobbin and the connecting terminal according to claim 1, characterized in that: the thickness of the framework groove is the same as that of the wiring pin, and the positioning lug is in a circular convex bag shape.

4. The connecting structure of the contactor bobbin and the connection terminal according to claim 1, 2 or 3, wherein: the one end that the binding post was kept away from to the wiring foot is buckled and is provided with the wrapping post, the position that corresponds the wrapping post on the skeleton groove is provided with the breach that is convenient for the wrapping post to insert along the direction of establishing that the wiring foot is inserted.

5. The connecting structure of the contactor coil bobbin and the connecting terminal according to claim 1, characterized in that: a supporting table for supporting the wiring pins is arranged in the base corresponding to the positions, extending out of the openings of the framework grooves, of the wiring pins, and limiting ribs for forming guide openings to facilitate the installation of the wiring pins are arranged on two sides of the supporting table.

6. The connecting structure of the contactor coil bobbin and the connecting terminal according to claim 5, wherein: and a limiting table which is used for abutting against the wiring pin is arranged at the position of the upper cover corresponding to the supporting table.