CN212587421U

CN212587421U - Coil assembly assembling mechanism of direct current contactor

Info

Publication number: CN212587421U
Application number: CN202021627539.7U
Authority: CN
Inventors: 曾祥明; 王钱军
Original assignee: Suzhou Anlaiqiang Electronic Technology Co ltd
Current assignee: Suzhou Anlaiqiang Electronic Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-02-23
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a direct current contactor's coil pack assembly devices, including coil skeleton, U type yoke, quiet iron core, move iron core and magnetic conduction piece, coil skeleton includes the skeleton body of cylinder and the annular curb plate that is fixed in this skeleton body both ends, install in U type yoke after the skeleton body periphery coiling enameled wire of coil skeleton, quiet iron core and move the iron core and assemble in the upper end and the lower extreme of skeleton body in proper order, the magnetic conduction piece is installed in U type yoke upper end open position and is located quiet iron core top, U type yoke bottom center is equipped with circular shape first location arch, when coil skeleton is installed in U type yoke, first location arch corresponds the card and is gone into in the lower extreme of skeleton body, be equipped with a plurality of strengthening ribs to the symmetric distribution on the inboard face of skeleton body lower extreme; the periphery of the static iron core is provided with an annular knurl which surrounds the static iron core for one circle, and the radius of the knurl is larger than that of the upper end of the framework body. The utility model discloses the fixed coil that can not only be reliable can also improve production efficiency.

Description

Coil assembly assembling mechanism of direct current contactor

Technical Field

The utility model belongs to the technical field of direct current contactor, specific saying so relates to a direct current contactor's coil pack assembly devices.

Background

At present, a common direct current contactor coil is usually fixed by the following three modes, firstly, a groove matched with a U-shaped magnetic yoke is designed for fixing, the matching gap designed by the mode is too small to assemble, the gap is too large to reliably fix, and the effect is not ideal; secondly, two symmetrically distributed bulges are designed at the bottom of the coil framework and are matched with correspondingly distributed holes on the U-shaped magnetic yoke for fixing, and the method has the same problems as the first method, and has high processing difficulty and unsatisfactory effect; thirdly, glue is used for bonding and fixing on the basis, so that although the coil can be reliably fixed, the cost is increased, and the production efficiency is greatly reduced.

Disclosure of Invention

In order to overcome the defects, the utility model provides a direct current contactor's coil pack assembly devices not only can be reliable fixed coil pack, can also improve production efficiency.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: a coil assembly assembling mechanism of a direct current contactor comprises a coil framework, a U-shaped yoke, a static iron core, a movable iron core and magnetic conducting sheets, wherein the coil framework comprises a cylindrical framework body and annular side plates fixed at two ends of the framework body; the periphery of the upper end part of the static iron core is provided with an annular knurl surrounding the static iron core for one circle, and the radius of the knurl is larger than that of the upper end of the framework body.

As a further improvement of the present invention, the reinforcing ribs are arranged in parallel to the axis direction of the frame body.

As a further improvement of the utility model, the center of the magnetic conductive sheet is provided with a center hole which is riveted with the static iron core in a matching way.

As a further improvement of the utility model, the radius of the upper end part of the static iron core is smaller than the radius of the other parts, and the corresponding card is clamped into the center hole of the magnetic conductive sheet.

As a further improvement, two sides of the length direction of magnetic conduction piece are provided with square second location arch, it is equipped with square positioning groove to correspond on two up end of U type yoke, the magnetic conduction piece passes through second location arch with positioning groove block fixed connection of U type yoke.

As a further improvement, the side plate of the coil frame located above upwards forms the top groove used for installing the magnetic conductive sheet, and the side plate located below downwards forms the bottom groove used for matching with the U-shaped yoke.

The utility model has the advantages that: the utility model firstly fixes the displacement freedom degree of the coil top X, Y direction through the interference fit of the knurl arranged on the static iron core and the coil frame, and secondly fixes the displacement freedom degree of the coil bottom X, Y direction through the interference fit of the first positioning bulge at the bottom of the U-shaped magnetic yoke and four destructible reinforcing ribs which are symmetrically distributed at the bottom of the coil frame; secondly, the angle freedom degree of the coil X, Y direction is limited by the matching of the grooves corresponding to the U-shaped magnetic yoke and the magnetic conductive sheets at the bottom and the top of the coil framework; and finally, the degree of freedom of the coil in the Z direction is limited by a magnetic conductive sheet riveted with the U-shaped magnetic yoke; through the structure, not only can the reliable fixed coil be arranged, but also the production efficiency can be improved.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the coil bobbin of the present invention;

fig. 4 is a schematic diagram of the static iron core structure of the present invention;

FIG. 5 is a schematic cross-sectional view of FIG. 4;

fig. 6 is a schematic structural view of the magnetic conductive sheet of the present invention;

fig. 7 is a schematic structural view of the U-shaped yoke of the present invention.

The following description is made with reference to the accompanying drawings:

1-coil skeleton; 11-skeleton body;

111-reinforcing ribs; 12-side plate;

13-Top groove; 14-bottom groove;

2-U-shaped yoke iron; 21-first positioning projection;

22-positioning groove; 3-static iron core;

31-knurling; 4-movable iron core;

5-magnetic conductive sheet; 51-central hole;

52-second locating projection.

Detailed Description

The following description of a preferred embodiment of the present invention will be made in conjunction with the accompanying drawings. However, the scope of the present invention is not limited to the following embodiments, and all simple equivalent changes and modifications made by the claims and the contents of the specification are still included in the scope of the present invention.

Referring to fig. 1-5, for a direct current contactor's coil pack assembly devices, including coil skeleton 1, U type yoke 2, quiet iron core 3, movable iron core 4 and magnetic conductive sheet 5, coil skeleton 1 includes the skeleton body 11 of cylinder and the annular curb plate 12 that is fixed in this skeleton body both ends, install in U type yoke 2 behind the skeleton body periphery coiling enameled wire of coil skeleton, 2 bottom centers of U type yoke are equipped with first locating protrusion 21 of circular shape, when coil skeleton 1 installs in U type yoke 2, first locating protrusion 21 corresponds in the card goes into the lower extreme of skeleton body 11, be equipped with a plurality of strengthening ribs 111 to the symmetric distribution on the inboard face of the lower extreme of skeleton body 101, make interference fit between skeleton body 101 and the first locating protrusion 21, come the displacement degree of freedom of Y direction of fixed coil bottom. Preferably, the reinforcing ribs 111 are provided in two pairs and arranged in a direction parallel to the axis of the bobbin body 11.

The static iron core 3 and the movable iron core 4 are sequentially assembled in the upper end and the lower end of the framework body 11, an annular knurl 31 surrounding the static iron core 3 in a circle is arranged on the periphery of the static iron core, and the radius of the knurl is larger than that of the upper end of the framework body 11. When assembling like this, quiet iron core 3 realizes the location through the annular knurl that sets up on it and the 11 interference fit of skeleton body of coil skeleton 1 to the displacement degree of freedom of restriction coil top X \ Y direction.

The magnetic conducting plate 5 is arranged at the opening position at the upper end of the U-shaped yoke 2 and is positioned above the static iron core 3, and the center of the magnetic conducting plate is provided with a center hole 51 which is riveted with the static iron core in a matching way; the radius of the upper end part of the static iron core is smaller than the radius of the rest part of the static iron core, and the static iron core is correspondingly clamped into the central hole 51 of the magnetic conductive sheet; two sides of the length direction of the magnetic conductive sheet are provided with square second positioning protrusions 52, two upper end faces of the U-shaped yoke 2 are correspondingly provided with square positioning grooves 21, and the magnetic conductive sheet is clamped and fixedly connected with the positioning grooves 21 of the U-shaped yoke 2 through the second positioning protrusions 52. In addition, the side plate of the coil bobbin located at the upper part is upwards formed with a top groove 13 for mounting the magnetic conductive sheet, and the side plate located at the lower part is downwards formed with a bottom groove 14 for matching with the U-shaped yoke.

When the coil assembly assembling mechanism of the direct current contactor is assembled, firstly, the coil assembly wound with the enameled wire is pressed into the U-shaped yoke iron, so that the U-shaped yoke iron is ensured to completely fall into the bottom groove 14 at the corresponding position of the coil framework in the width direction, and even if the bottom groove 14 on the coil framework is attached to the U-shaped yoke iron; secondly, the static iron core and the magnetic conductive sheet are riveted, the static iron core, the movable iron core and the push rod assembly are assembled together to form a transmission assembly, the transmission assembly and the movable iron core and the push rod assembly are assembled in the mounting hole in the center of the coil framework together, and due to the knurls arranged on the static iron core, the coil can be reliably fixed, and plastic scraps in the assembling process can be placed to influence the normal work of a product.

Therefore, the utility model firstly fixes the displacement freedom degree of the coil top X, Y direction through the interference fit of the knurl arranged on the static iron core and the coil frame, and secondly fixes the displacement freedom degree of the coil bottom X, Y direction through the interference fit of the first positioning bulge at the bottom of the U-shaped magnetic yoke and four destructible reinforcing ribs symmetrically distributed at the bottom of the coil frame; secondly, the angle freedom degree of the coil X, Y direction is limited by the matching of the grooves corresponding to the U-shaped magnetic yoke and the magnetic conductive sheets at the bottom and the top of the coil framework; and finally, the degree of freedom of the coil in the Z direction is limited by a magnetic conductive sheet riveted with the U-shaped magnetic yoke; through the structure, not only can the reliable fixed coil be arranged, but also the production efficiency can be improved.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a direct current contactor's coil pack assembly devices, includes coil skeleton (1), U type yoke (2), quiet iron core (3), moves iron core (4) and magnetic conduction piece (5), coil skeleton (1) include skeleton body (11) of cylinder and be fixed in annular curb plate (12) at this skeleton body both ends, install behind the skeleton body periphery coiling enameled wire of coil skeleton in U type yoke (2), quiet iron core (3) with move iron core (4) assemble in proper order in the upper end and the lower extreme of skeleton body (11), magnetic conduction piece (5) install in U type yoke (2) upper end open position is located quiet iron core (3) top, its characterized in that: a circular first positioning bulge (21) is arranged at the center of the bottom of the U-shaped yoke (2), when the coil framework (1) is installed in the U-shaped yoke (2), the first positioning bulge (21) is correspondingly clamped into the lower end of the framework body (11), and a plurality of reinforcing ribs (111) which are symmetrically distributed are arranged on the inner side surface of the lower end of the framework body (11); the periphery of the upper end part of the static iron core (3) is provided with annular knurls (31) surrounding the static iron core for one circle, and the radius of each knurl is larger than that of the upper end of the framework body (11).

2. The coil block assembling mechanism of a direct current contactor as claimed in claim 1, wherein: the reinforcing ribs (111) are arranged in the direction parallel to the axis of the framework body (11).

3. The coil block assembling mechanism of a direct current contactor as claimed in claim 1, wherein: the center of the magnetic conductive sheet is provided with a center hole (51) which is riveted with the static iron core in a matching way.

4. The coil block assembling mechanism of a direct current contactor as claimed in claim 3, wherein: the radius of the upper end part of the static iron core is smaller than the radius of the rest part of the static iron core, and the static iron core is correspondingly clamped in a center hole (51) of the magnetic conductive sheet.

5. The coil block assembling mechanism of a direct current contactor as claimed in claim 3, wherein: two sides of the length direction of the magnetic conductive sheet are provided with square second positioning protrusions (52), two upper end faces of the U-shaped yoke (2) are correspondingly provided with square positioning grooves (22), and the magnetic conductive sheet is fixedly connected with the positioning grooves (22) of the U-shaped yoke (2) in a clamping mode through the second positioning protrusions (52).

6. The coil block assembling mechanism of a direct current contactor as claimed in claim 1, wherein: the side plate of the coil framework, which is positioned above, is upwards formed with a top groove (13) for installing the magnetic conductive sheet, and the side plate, which is positioned below, is downwards formed with a bottom groove (14) for matching with the U-shaped yoke.