阅读说明：本技术 非密封直流接触器的增强型传动机构 (Enhanced transmission mechanism of non-sealed direct current contactor ) 是由 王小虎 刘秀梅 于 2019-12-14 设计创作，主要内容包括：本发明给出了一种非密封直流接触器的增强型传动机构；包括壳体、端盖、线圈、线圈骨架、上轭铁、下轭铁、端子、动铁芯和弹簧；壳体内设有空腔,端盖设置壳体开口处,线圈骨架放置在空腔内,线圈缠绕在线圈骨架侧壁上,线圈骨架内开有安装通孔；上轭铁设置在线圈骨架上侧,上轭铁下端伸入线圈骨架的安装通孔内,上轭铁内开有二阶段阶梯孔,二阶段阶梯孔的处于下侧位置的第二阶段孔与端子配合；下轭铁设置在线圈骨架下侧,下轭铁上端伸入线圈骨架的安装通孔内,动铁芯伸入线圈骨架的安装通孔内,弹簧分别抵靠在端子和动铁芯上。本传动机构适用于非密封防爆直流接触器,在保证产品总体性能指标前提下,同时可保证其总体结构的牢固性和机械强度。(The invention provides an enhanced transmission mechanism of a non-sealed direct current contactor; the coil comprises a shell, an end cover, a coil framework, an upper yoke, a lower yoke, a terminal, a movable iron core and a spring; a cavity is arranged in the shell, the end cover is provided with an opening of the shell, the coil framework is placed in the cavity, the coil is wound on the side wall of the coil framework, and an installation through hole is formed in the coil framework; the upper yoke iron is arranged on the upper side of the coil framework, the lower end of the upper yoke iron extends into the mounting through hole of the coil framework, a second-stage stepped hole is formed in the upper yoke iron, and a second-stage hole in the lower side position of the second-stage stepped hole is matched with the terminal; the lower yoke iron is arranged on the lower side of the coil framework, the upper end of the lower yoke iron extends into the mounting through hole of the coil framework, the movable iron core extends into the mounting through hole of the coil framework, and the spring abuts against the terminal and the movable iron core respectively. The transmission mechanism is suitable for the non-sealed explosion-proof direct current contactor, and can ensure the firmness and the mechanical strength of the overall structure of the product on the premise of ensuring the overall performance index of the product.)

1. An enhancement mode drive mechanism of a non-sealing direct current contactor is characterized in that:

the coil comprises a shell, an end cover, a coil framework, an upper yoke, a lower yoke, a terminal, a movable iron core and a spring;

a cavity is arranged in the shell, the upper end of the shell is opened, the end cover is provided with the opening of the shell, the coil framework is placed in the cavity, the coil is wound on the side wall of the coil framework, and the coil framework is internally provided with an installation through hole penetrating through the upper end surface and the lower end surface of the coil framework;

the upper yoke iron is arranged on the upper side of the coil framework, the upper end face of the upper yoke iron penetrates through the end cover and extends to the upper end face of the end cover, the lower end of the upper yoke iron extends into the mounting through hole of the coil framework, a two-stage stepped hole penetrating through the upper end face and the lower end face of the upper yoke iron is formed in the upper yoke iron, the two-stage stepped hole comprises a first-stage hole and a second-stage hole, the second-stage hole in the lower side position is matched with the terminal, the second-stage hole can be used for the terminal to move up and down in a reciprocating mode, and the aperture of the;

lower yoke sets up at coil skeleton downside, and terminal surface runs through the casing and extends to terminal surface under the casing under the lower yoke, and in lower yoke upper end stretched into coil skeleton's installation through-hole, move the iron core and run through lower yoke and stretch into coil skeleton's installation through-hole, the spring upper end supported and leans on the terminal, and the spring lower extreme supports and leans on moving the iron core.

2. The enhanced transmission mechanism of a non-sealing DC contactor as claimed in claim 1, wherein:

a plurality of first framework bosses extend from the upper end surface of the coil framework and abut against the upper yoke iron; the coil skeleton under the terminal surface extend and have a plurality of second skeleton bosss, the second skeleton boss supports and leans on under on the yoke.

3. The enhanced transmission mechanism of a non-sealing DC contactor as claimed in claim 1, wherein: the side wall of the mounting through hole extends towards the inner side to form a limiting boss, the length direction of the limiting boss is consistent with the axial direction of the mounting through hole, and the outer wall of the upper yoke is provided with a limiting groove matched with the limiting boss.

Technical Field

The invention relates to an enhanced transmission mechanism of a non-sealed direct current contactor.

Background

The state advocates the development of new energy automobiles in recent years, the development of batteries, electric control and corresponding matching parts is rapid, the development of direct current contactors is particularly prominent, the current market mainly comprises two products of Taike epoxy sealing and loose ceramic sealing, which are both sealing structures, but the sealing structures have complex processes, many matched production equipment and high production cost, and have the problems of potential safety hazards of explosion and the like; at present, a direct current contactor with a non-sealing structure is not available, and a special transmission mechanism for the direct current contactor with the non-sealing structure is also absent.

Disclosure of Invention

The invention aims to provide an enhanced transmission mechanism of a non-sealed direct current contactor, which can enhance the firmness and mechanical strength of products.

In order to solve the technical problem, the invention provides an enhanced transmission mechanism of a non-sealing direct current contactor;

the coil comprises a shell, an end cover, a coil framework, an upper yoke, a lower yoke, a terminal, a movable iron core and a spring;

a cavity is arranged in the shell, the upper end of the shell is opened, the end cover is provided with the opening of the shell, the coil framework is placed in the cavity, the coil is wound on the side wall of the coil framework, and the coil framework is internally provided with an installation through hole penetrating through the upper end surface and the lower end surface of the coil framework;

the upper yoke iron is arranged on the upper side of the coil framework, the upper end face of the upper yoke iron penetrates through the end cover and extends to the upper end face of the end cover, the lower end of the upper yoke iron extends into the mounting through hole of the coil framework, a two-stage stepped hole penetrating through the upper end face and the lower end face of the upper yoke iron is formed in the upper yoke iron, the two-stage stepped hole comprises a first-stage hole and a second-stage hole, the second-stage hole in the lower side position is matched with the terminal, the second-stage hole can be used for the terminal to move up and down in a reciprocating mode, and the aperture of the;

lower yoke sets up at coil skeleton downside, and terminal surface runs through the casing and extends to terminal surface under the casing under the lower yoke, and in lower yoke upper end stretched into coil skeleton's installation through-hole, move the iron core and run through lower yoke and stretch into coil skeleton's installation through-hole, the spring upper end supported and leans on the terminal, and the spring lower extreme supports and leans on moving the iron core.

After adopting such structure, this non-sealing direct current contactor's enhancement mode drive mechanism is applicable to non-sealing explosion-proof direct current contactor, under the prerequisite of guaranteeing the product overall performance index, can guarantee the fastness and the mechanical strength of its overall structure simultaneously.

For a clearer understanding of the technical content of the present invention, the enhanced transmission mechanism of the present non-sealed dc contactor will be simply referred to as the present transmission mechanism hereinafter.

The upper end face of a coil framework of the transmission mechanism extends to form a plurality of first framework bosses, and the first framework bosses are abutted against an upper yoke; a plurality of second framework bosses extend from the lower end face of the coil framework and abut against the lower yoke iron; after adopting such structure, through increasing the height of first skeleton boss and second skeleton boss control coil skeleton, increase product fastness and mechanical strength, reduced product failure rate, improve the product qualification rate under the index prerequisite such as guaranteeing this drive mechanism stroke, interval, overrun, compare reduction in production cost, reduction process equipment than traditional contactor.

The side wall of the installation through hole of the transmission mechanism extends towards the inner side to form a limiting boss, the length direction of the limiting boss is consistent with the axial direction of the installation through hole, and the outer wall of the upper yoke iron is provided with a limiting groove matched with the limiting boss; after adopting such structure, spacing boss and spacing recess cooperation can prevent that relative circumferential direction from taking place for yoke and coil skeleton support.

Drawings

Fig. 1 shows a state of use of the present transmission mechanism embodiment.

FIG. 2 is a cross-sectional front view of the present transmission embodiment.

Fig. 3 is a perspective view of a bobbin in an embodiment of the present transmission mechanism.

Fig. 4 is a sectional view of a front view of a bobbin in the present embodiment of the transmission.

Detailed Description

As shown in fig. 1 to 4 (the coil is omitted in fig. 1 and 2 for more clear illustration of the technical contents of the present application).

The transmission mechanism comprises a shell 1, an end cover 2, a coil framework 3, an upper yoke iron 4, a lower yoke iron 5, a terminal 61, a movable iron core 62 and a spring 63.

The casing 1 is roughly rectangular, a cavity 11 is arranged in the casing 1, the upper end of the casing 1 is opened, the end cover 2 is provided with the opening of the casing 1, the coil framework 3 is placed in the cavity 11, the side wall of the coil framework 3 is provided with a notch 35 matched with the coil, the coil is wound in the notch 35 of the coil framework 3, the coil framework 3 is internally provided with an installation through hole 31 penetrating through the upper end surface and the lower end surface of the coil framework 3, and the upper end surface and the lower end surface of the coil framework 3 are respectively provided with a groove matched with an upper yoke 4 and a lower yoke.

Go up yoke 4 and set up 3 upsides in coil skeleton, go up yoke 4 up end and run through end cover 2 and extend to the 2 up end of end cover, 4 middle parts of upper yoke are placed in the recess of 3 up end of coil skeleton, 4 lower extremes of upper yoke stretch into in coil skeleton 3's the installation through-hole 31, it has the two-stage shoulder hole that runs through its upper and lower terminal surface to go up to open in yoke 4, the two-stage shoulder hole includes first stage hole 41 and second stage hole 42, second stage hole 42 and the cooperation of terminal 61 that is in the downside position, second stage hole 42 can supply terminal 61 reciprocating motion from top to bottom, the aperture of first stage hole 41 is less than the maximum diameter of terminal 61.

Lower yoke 5 sets up in coil skeleton 3 downside, and terminal surface runs through casing 1 and extends to terminal surface under the casing 1 under the lower yoke 5, and lower yoke 5 middle part is placed in the recess of terminal surface under coil skeleton 3, and in lower yoke 5 upper end stretched into coil skeleton 3's installation through-hole 31, move iron core 62 and run through lower yoke 5 and stretch into coil skeleton 3's installation through-hole 31 in, the spring 63 upper end supports and leans on terminal 61, and the spring 63 lower extreme supports and leans on moving iron core 62.

Coil skeleton 3 up end extends has three first skeleton boss 32, and first skeleton boss 32 supports and leans on last yoke 4, and coil skeleton 3 lower extreme face extends has three second skeleton boss 33, and second skeleton boss 33 supports and leans on yoke 5 down.

The side wall of the installation through hole 31 extends inwards to form a limit boss 34, the length direction of the limit boss 34 is consistent with the axial direction of the installation through hole 31, and the outer wall of the upper yoke 4 is provided with a limit groove (not shown) matched with the limit boss 34.

After assembly, the shell 1, the end cover 2, the coil framework 3, the upper yoke iron 4 and the lower yoke iron 5 are fixed, and the mounting seat 7 of the direct current contactor and the transmission mechanism are pressed and fixed in place by a hand press;

in this process, first skeleton boss 32 and second skeleton boss 33 of coil skeleton 3 force with upper yoke iron 4 and the contact of yoke iron 5 down, and first skeleton boss 32 and second skeleton boss 33 are by extrusion deformation, and control coil skeleton 3's height increases product fastness and mechanical strength under the index prerequisite such as assurance this drive mechanism stroke, interval, overrun.

Because the first framework boss 32 and the second framework boss 33 of the coil framework 3, the distance of the buckle of the shell 1 at the position of the mounting seat 7 inserted into the direct current contactor is increased, so that the design of the total stroke, the distance and the over travel of the product is ensured, and the integral strength of the product is ensured. If the coil framework 3 does not have the design of this kind of structure, and the mount pad 7 of direct current contactor is the injection molding, its tolerance guarantees difficultly, and this drive mechanism's casing 1 is the stamping workpiece of DT4C material and very easily warp, when this drive mechanism's casing 1, during a part production deviation in direct current contactor's the mount pad 7, or the accumulative error deviation, product overall assembly will lead to coil framework 3 unsettled, can't fix, produce and rock scheduling problem, the stroke of whole product, overrun, the clearance all can deviate from the tolerance range of design simultaneously, the total index of product will receive serious influence.

The above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as falling within the protection scope of the present invention.