阅读说明：本技术 一种继电器的常开静簧端子的安装结构 (Normally open static spring terminal's of relay mounting structure ) 是由 杨晓厦 杨静 孙文录 于 2021-01-04 设计创作，主要内容包括：本发明公开了一种继电器的常开静簧端子的安装结构,包括常开静簧端子和继电器基座和罩壳,特点是常开静簧端子包括触点安装部,触点安装部的下端向后水平弯折形成下支撑部,下支撑部的后端向下竖向弯折形成下引出端,触点安装部的上端向后水平弯折形成上支撑部,上支撑部的后端向上竖向弯折形成上引出端；继电器基座的侧部设置有L型插槽,L型插槽包括横向插接部和竖向插接部,横向插接部的前端与竖向插接部的下端相连通,横向插接部的后端设置有上下贯通的与下引出端相配合的下脚位口,罩壳上设置有上脚位口。优点是上述结构既能满足下引出端的脚位设定要求,同时可有效避免对线圈安装空间所造成的影响,从而使得继电器具有较好的吸力特性。(The invention discloses an installation structure of a normally open static spring terminal of a relay, which comprises the normally open static spring terminal, a relay base and a housing and is characterized in that the normally open static spring terminal comprises a contact installation part, the lower end of the contact installation part is bent backwards and horizontally to form a lower supporting part, the rear end of the lower supporting part is bent downwards and vertically to form a lower leading-out end, the upper end of the contact installation part is bent backwards and horizontally to form an upper supporting part, and the rear end of the upper supporting part is bent upwards and vertically to form an upper leading-out end; the lateral part of relay base is provided with L type slot, and L type slot includes horizontal grafting portion and vertical grafting portion, and the front end of horizontal grafting portion is linked together with the lower extreme of vertical grafting portion, and the rear end of horizontal grafting portion is provided with about link up with draw forth end matched with lower foot position mouth down, is provided with the upper foot position mouth on the housing. The advantage is that above-mentioned structure can satisfy the pin position of leading out the end down and set for the requirement, can effectively avoid the influence that causes the coil installation space simultaneously to make the relay have better suction characteristic.)

1. A mounting structure of a normally open static spring terminal of a relay comprises the normally open static spring terminal, a relay base used for mounting the normally open static spring terminal and a cover arranged on the relay base;

the normally open static spring terminal is characterized by comprising a vertically arranged contact mounting part, wherein the lower end of the contact mounting part is horizontally bent backwards to form a lower supporting part, the rear end of the lower supporting part is vertically bent downwards to form a lower leading-out end, the upper end of the contact mounting part is horizontally bent backwards to form an upper supporting part, and the rear end of the upper supporting part is vertically bent upwards to form an upper leading-out end;

the side part of the relay base is provided with an L-shaped slot for the normally open static spring terminal to be inserted and installed from the side direction, the L-shaped slot comprises a transverse insertion part matched with the lower supporting part and a vertical insertion part matched with the contact installation part and provided with an opening at the upper part, the front end of the transverse insertion part is communicated with the lower end of the vertical insertion part, the rear end of the transverse insertion part is provided with a lower pin position hole which is communicated up and down and matched with the lower leading-out end, and the housing is provided with an upper pin position hole which is communicated up and down and used for the upper leading-out end to extend upwards for installation;

after the installation, the lower supporting part is inserted into the horizontal plug-in part, the contact mounting part is inserted into the vertical plug-in part, the upper part of the lower leading-out end is positioned in the lower pin hole, the lower end of the lower leading-out end downwards extends out of the relay base through the lower pin hole, and the upper leading-out end extends out of the housing through the upper pin hole.

2. The mounting structure of a normally open static spring terminal of a relay according to claim 1, wherein said relay base includes a bottom plate, said bottom plate having a coil box for mounting a coil with an upper opening, said horizontal insertion portion being located between a bottom of said coil box and said bottom plate, said vertical insertion portion being located in front of said coil box, said upper support portion being located above said coil box.

3. The structure of claim 2, wherein a shield for isolating the upper support portion from an armature mounted in the relay is provided between the upper support portion and the coil housing.

4. The mounting structure of a normally open static spring terminal of a relay as claimed in claim 3, wherein said cage comprises a horizontally disposed isolation plate, the front end of said isolation plate is vertically bent downward to form a front limit mounting wall, the rear end of said isolation plate is vertically bent downward to form a rear positioning mounting wall, said front limit mounting wall is hooked on the front closing wall of said coil box; a limiting part is arranged on the front enclosing wall in an extending mode, and the inner side wall of the isolation plate abuts against the side part of the limiting part; the side wall of the corresponding position of the coil box is provided with a positioning groove matched with the rear positioning installation wall, the rear positioning installation wall is embedded in the positioning groove, and the upper supporting part is arranged on the isolation plate.

5. The normally open static spring terminal mounting structure for a relay as claimed in claim 4, wherein said spacer is provided with a positioning groove recessed downward, and said upper support portion is fitted into said positioning groove.

6. The mounting structure for a normally open static spring terminal of a relay as claimed in claim 5, wherein said isolating plate has an isolating protrusion protruding upward, said isolating protrusion is located inside said positioning groove, and the inner side of said isolating protrusion extends inward and is disposed behind said limiting portion, said upper terminal extends inward to form an extending end, said extending end is disposed on said isolating protrusion, and said isolating protrusion is embedded in said upper pin opening.

7. The mounting structure of a normally open static spring terminal of a relay as claimed in claim 1, wherein a positioning wall is protruded from the front wall of the coil box, a vertical limiting wall parallel to the positioning wall is disposed on the bottom plate, the limiting wall is disposed in front of the positioning wall at an interval, the limiting wall is connected to the inner end of the positioning wall through a connecting wall, and the vertical insertion portion is formed between the limiting wall, the positioning wall and the connecting wall.

8. The mounting structure of a normally open static spring terminal of a relay as claimed in claim 7, wherein said connecting wall is provided with a positioning hole penetrating from left to right, and a positioning post matched with said positioning hole is convexly provided on the inner side wall of said contact mounting portion; after the installation is finished, the positioning column is inserted into the positioning hole.

9. The mounting structure of a normally open static spring terminal of a relay as claimed in claim 8, wherein the upper end surface and the lower end surface of the positioning post are respectively provided with barbs, the upper end surface of the barb located on the upper end surface of the positioning post is an inclined end surface inclined downward along the mounting direction of the normally open static spring terminal, and the lower end surface of the barb located on the lower end surface of the positioning post is an inclined end surface inclined upward along the mounting direction of the normally open static spring terminal.

10. The mounting structure of a normally open static spring terminal of a relay according to claim 1, wherein a first positioning convex buckle is convexly arranged on the front end surface or the rear end surface of the contact mounting part, and after the mounting is completed, the first positioning convex buckle is abutted against the inner wall of the vertical insertion part to realize that the contact mounting part is tightly mounted in the vertical insertion part; the upper end surface or the lower end surface of the lower supporting part is convexly provided with a second positioning convex buckle, and after the installation is completed, the second positioning convex buckle is abutted against the inner wall of the transverse insertion part to realize that the upper supporting part is installed in the transverse insertion part in a tight fit manner.

Technical Field

The invention relates to a relay, in particular to a mounting structure of a normally open static spring terminal of the relay.

Background

A relay is a widely used electronic component, and is applied to the fields of household appliances, automobiles, industrial control, power systems, communication devices, and the like. With the development of society, the use of the relay is more and more extensive, and the variety is also more and more, and function and structure are also different. At present normally open quiet spring terminal in the relay that has now is vertical lamellar body structure conventionally, install on the base of relay through the mode of top-down cut straightly, because of the difference of using-way, the end of drawing forth of the quiet spring terminal of normally opening in some relays divide into down draws forth the end and draws forth the end on with, because the product characteristic all has the requirement to drawing forth the foot distance of end and last end down, the mounting structure of formula of cuting straightly can lead to the fact the influence to the space of placing the coil at the back, it is less to lead to being used for installing the space of coil, just so make the coil need wind some less when the design, thereby cause the influence to the suction characteristic of relay.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an installation structure of a normally open static spring terminal of a relay, which can effectively avoid the influence on the installation space of a coil so as to ensure that the relay has better suction property.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a mounting structure of a normally open static spring terminal of a relay comprises the normally open static spring terminal, a relay base used for mounting the normally open static spring terminal and a cover arranged on the relay base;

the normally open static spring terminal comprises a vertically arranged contact mounting part, the lower end of the contact mounting part is bent backwards and horizontally to form a lower supporting part, the rear end of the lower supporting part is bent downwards and vertically to form a lower leading-out end, the upper end of the contact mounting part is bent backwards and horizontally to form an upper supporting part, and the rear end of the upper supporting part is bent upwards and vertically to form an upper leading-out end;

the side part of the relay base is provided with an L-shaped slot for the normally open static spring terminal to be inserted and installed from the side direction, the L-shaped slot comprises a transverse insertion part matched with the lower supporting part and a vertical insertion part matched with the contact installation part and provided with an opening at the upper part, the front end of the transverse insertion part is communicated with the lower end of the vertical insertion part, the rear end of the transverse insertion part is provided with a lower pin position hole which is communicated up and down and matched with the lower leading-out end, and the housing is provided with an upper pin position hole which is communicated up and down and used for the upper leading-out end to extend upwards for installation;

after the installation, the lower supporting part is inserted into the horizontal plug-in part, the contact mounting part is inserted into the vertical plug-in part, the upper part of the lower leading-out end is positioned in the lower pin hole, the lower end of the lower leading-out end downwards extends out of the relay base through the lower pin hole, and the upper leading-out end extends out of the housing through the upper pin hole.

The relay base comprises a bottom plate, a coil box with an opening at the upper part and used for installing a coil is arranged on the bottom plate, the transverse insertion part is positioned between the bottom of the coil box and the bottom plate, the vertical insertion part is positioned in front of the coil box, and the upper supporting part is positioned above the coil box. The installation space is reasonably utilized, and the influence of the installation of the normally open static spring terminal on the safety space of the coil is effectively avoided.

An isolation cover used for isolating the upper supporting part from the armature iron arranged in the relay is arranged between the upper supporting part and the coil box. The isolation effect is achieved between the upper supporting part and the armature mounted in the relay through the isolation cover, the creepage distance is increased, and the use safety is improved.

The isolation cover comprises an isolation plate which is horizontally arranged, the front end of the isolation plate is downwards and vertically bent to form a front limiting installation wall, the rear end of the isolation plate is downwards and vertically bent to form a rear positioning installation wall, and the front limiting installation wall is hooked on the front enclosing wall of the coil box; a limiting part is arranged on the front enclosing wall in an extending mode, and the inner side wall of the isolation plate abuts against the side part of the limiting part; the side wall of the corresponding position of the coil box is provided with a positioning groove matched with the rear positioning installation wall, the rear positioning installation wall is embedded in the positioning groove, and the upper supporting part is arranged on the isolation plate. The isolation hood is simple in structure, the front limiting installation wall is hooked on the front enclosing wall of the coil box, the rear positioning installation wall is embedded in the positioning groove, and the inner side wall of the isolation plate abuts against the side part of the limiting part to realize stable positioning and installation of the isolation hood; the isolation plate mainly plays a role in isolating the armature arranged in the coil box from the upper supporting part.

The isolating plate is provided with a positioning groove which is sunken downwards, and the upper supporting part is embedded in the positioning groove. The positioning groove provides stable installation positioning for the upper supporting part.

The division board on upwards protruding be provided with an isolation lug, the isolation lug be located the inboard of constant head tank, just the inboard of isolation lug inwards extend the setting and be in spacing portion after, last terminal of drawing forth inwards extend and form the extension end, the extension end set up isolation lug on, the embedding of isolation lug set up last foot position in. Further isolation is achieved between the armature and the normally open static spring terminal through the isolation convex block, the creepage distance is effectively increased, and the safe and stable use of the relay is ensured.

The coil box is characterized in that a positioning wall is arranged on the front wall of the coil box in a protruding mode, a vertical limiting wall parallel to the positioning wall is arranged on the bottom plate, the limiting wall is arranged in front of the positioning wall at intervals, the limiting wall is connected with the inner end of the positioning wall through a connecting wall, and the vertical insertion part is formed among the limiting wall, the positioning wall and the connecting wall. The installation space for the plug-in mounting contact installation part is formed through the limiting wall, the positioning wall and the connecting wall, and stable installation positioning is provided for the contact installation part.

The connecting wall is provided with a left-right through positioning hole, and a positioning column matched with the positioning hole is arranged on the inner side wall of the contact mounting part in a protruding manner; after the installation is finished, the positioning column is inserted into the positioning hole. The installation of normally opening quiet spring terminal provides a more stable installation location through reference column and locating hole.

The up end and the lower terminal surface of reference column be provided with the barb respectively, be located the up end of reference column on the up end of barb for along the oblique terminal surface of installation direction downward sloping of normally open static spring terminal, be located the lower terminal surface of reference column on the lower terminal surface of barb for along the oblique terminal surface of installation direction tilt up of normally open static spring terminal. Through set up the barb on the reference column, realize that the reference column can insert relatively laborsavingly when the installation and install in the locating hole, in case the installation is accomplished the back, can ensure through the barb that the reference column can not deviate from the locating hole easily, ensured the stable installation of normally opening static spring terminal.

The front end surface or the rear end surface of the contact mounting part is convexly provided with a first positioning convex buckle, and after the contact mounting part is mounted, the first positioning convex buckle is abutted against the inner wall of the vertical insertion part to realize that the contact mounting part is tightly mounted in the vertical insertion part; the upper end surface or the lower end surface of the lower supporting part is convexly provided with a second positioning convex buckle, and after the installation is completed, the second positioning convex buckle is abutted against the inner wall of the transverse insertion part to realize that the upper supporting part is installed in the transverse insertion part in a tight fit manner. Through the protruding knot of first location support establish in vertical grafting portion have realized that the contact installation department can the tight fit stable installation in vertical grafting portion, through the protruding knot of second location support establish in horizontal grafting portion have realized that the supporting part can the tight fit stable installation in vertical grafting portion.

Compared with the prior art, the invention has the advantages that: normally open quiet spring terminal by vertical contact installation department, the end constitutes is drawn forth under horizontally supporting part and the vertical, set up on the relay base and insert the slot of installation from the lateral part in the quiet spring terminal of making of the shape matched with above-mentioned normally open quiet spring terminal, normally open quiet spring terminal inserts through the lateral part with it complex slot from the relay base and establishes the installation, can satisfy the foot position settlement requirement of drawing forth the end down, can effectively avoid the influence that causes the coil installation space simultaneously, thereby make the relay have better suction characteristic.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a normally open static spring terminal of the present invention mounted in a housing;

FIG. 3 is a schematic diagram of a first three-dimensional structure of a normally open static spring terminal according to the present invention;

FIG. 4 is a schematic diagram of a normally open static spring terminal mounted on a relay base according to the present invention;

FIG. 5 is a schematic cross-sectional view of a normally open static spring terminal mounted on a relay base according to the present invention;

FIG. 6 is a schematic diagram of a structure of the present invention in which the cage is mounted on the base of the relay in a mating manner;

FIG. 7 is a schematic structural diagram of a relay base according to the present invention;

FIG. 8 is a schematic cross-sectional view of a relay base according to the present invention;

fig. 9 is a schematic structural view of the cover in the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in the figure, the mounting structure of the normally open static spring terminal of the relay comprises a normally open static spring terminal 1, a relay base 2 for mounting the normally open static spring terminal 1 and a cover 3 covering the relay base 2;

the normally open static spring terminal 1 comprises a vertically arranged contact mounting part 101, the lower end of the contact mounting part 101 is horizontally bent backwards to form a lower supporting part 102, the rear end of the lower supporting part 102 is vertically bent downwards to form a lower leading-out end 103, the upper end of the contact mounting part 101 is horizontally bent backwards to form an upper supporting part 104, and the rear end of the upper supporting part 104 is vertically bent upwards to form an upper leading-out end 105;

an L-shaped slot for the normally-open static spring terminal 1 to be inserted and installed from the side direction of the relay base 2 is arranged on the side portion of the relay base, the L-shaped slot comprises a transverse plugging portion 201 matched with the lower supporting portion 102 and a vertical plugging portion 202 matched with the contact installation portion 101 and provided with an opening at the upper portion, the front end of the transverse plugging portion 201 is communicated with the lower end of the vertical plugging portion 202, a lower pin position port 203 which is communicated with the upper portion and matched with the lower leading-out end 103 is arranged at the rear end of the transverse plugging portion 201, and an upper pin position port 301 which is communicated with the upper portion and the lower portion and is used for the upper leading-out end 105 to;

after the installation, the lower support part 102 is inserted and installed in the horizontal insertion part 201, the contact installation part 101 is inserted and installed in the vertical insertion part 202, the upper part of the lower terminal 103 is located in the lower pin opening 203, the lower end of the lower terminal 103 extends out of the relay base 2 downwards through the lower pin opening 203, and the upper terminal 105 extends out of the housing 3 through the upper pin opening 301.

In this embodiment, the relay base 2 includes a bottom plate 21, a coil box 22 for mounting the coil is provided on the bottom plate 21, the upper opening is formed on the bottom plate 21, the horizontal insertion portion 201 is located between the bottom of the coil box 22 and the bottom plate 21, the vertical insertion portion 202 is located in front of the coil box 22, and the upper support portion 104 is located above the coil box 22. The installation space is reasonably utilized, and the influence of the installation of the normally-open static spring terminal 1 on the safety space of the coil is effectively avoided.

In this embodiment, a shield 4 for isolating the upper support portion 104 from the armature mounted in the relay is provided between the upper support portion 104 and the coil housing 22. The isolation effect is achieved between the upper supporting part 104 and the armature mounted in the relay through the isolation cover 4, the creepage distance is increased, and the use safety is improved.

In this embodiment, the isolation hood 4 includes a horizontally disposed isolation plate 401, a front end of the isolation plate 401 is bent downward vertically to form a front limiting installation wall 402, a rear end of the isolation plate 401 is bent downward vertically to form a rear positioning installation wall 403, and the front limiting installation wall 402 is hooked on the front enclosing wall 221 of the coil box 22; the front enclosing wall 221 is provided with a limit part 222 in an extending manner, and the inner side wall of the isolation plate 401 abuts against the side part of the limit part 222; the side wall 223 of the coil box 22 at the corresponding position is provided with a positioning groove 224 matching with the rear positioning installation wall 403, the rear positioning installation wall 403 is embedded in the positioning groove 224, and the upper support part 104 is arranged on the isolation plate 401. The isolation hood 4 has a simple structure, and the stable positioning and installation of the isolation hood 4 are realized by hooking the front limit installation wall 402 on the front enclosing wall 221 of the coil box 22, embedding the rear positioning installation wall 403 in the positioning groove 224, and abutting the inner side wall of the isolation plate 401 on the side part of the limit part 222; the spacer 401 mainly serves to separate the armature mounted in the coil box 22 from the front of the upper support portion 104.

In this embodiment, the partition board 401 is provided with a positioning groove 41 recessed downward, and the upper support portion 104 is embedded in the positioning groove 41. The upper support 104 is provided with a stable mounting position by the positioning groove 41.

In this embodiment, an isolation protrusion 42 is protruded upward from the isolation plate 401, the isolation protrusion 42 is located inside the positioning groove 41, the inner side of the isolation protrusion 42 extends inward and is disposed behind the limiting portion 222, the upper lead 105 extends inward to form an extension end 1051, the extension end 1051 is disposed on the isolation protrusion 42, and the isolation protrusion 42 is embedded in the upper foot opening 301. Further isolation is performed between the armature and the normally open static spring terminal 1 through the isolation bump 42, the creepage distance is effectively increased, and the safe and stable use of the relay is ensured.

In this embodiment, a positioning wall 225 is convexly provided on the front enclosing wall 221 of the coil box 22, a vertical limiting wall 226 parallel to the positioning wall 225 is provided on the bottom plate 21, the limiting wall 226 is disposed at an interval in front of the positioning wall 225, the limiting wall 226 is connected to the inner end of the positioning wall 225 by a connecting wall 227, and the vertical insertion part 202 is formed among the limiting wall 226, the positioning wall 225 and the connecting wall 227. The installation space for inserting the contact mounting portion 101 is formed by the stopper wall 226, the positioning wall 225, and the connecting wall 227, providing stable installation positioning for the contact mounting portion 101.

In this embodiment, the connecting wall 227 is provided with a positioning hole 228 penetrating from left to right, and a positioning post 1011 matching with the positioning hole 228 is convexly provided on the inner side wall of the contact mounting portion 101; after the installation, the positioning posts 1011 are inserted into the positioning holes 228. The positioning column 1011 and the positioning hole 228 provide a more stable mounting positioning for the normally open static spring terminal 1.

In this embodiment, the upper end surface and the lower end surface of the positioning column 1011 are respectively provided with an barb 1012, the upper end surface of the barb 1012 located on the upper end surface of the positioning column 1011 is an inclined end surface inclined downward along the installation direction of the normally open static spring terminal 1, and the lower end surface of the barb 1012 located on the lower end surface of the positioning column 1011 is an inclined end surface inclined upward along the installation direction of the normally open static spring terminal 1. Through set up barb 1012 on reference column 1011, realize that reference column 1011 can insert the installation in locating hole 228 more laborsavingly when the installation, in case the installation is accomplished, can ensure through barb 1012 that reference column 1011 can not deviate from locating hole 228 easily, ensured the stable installation of normally opening static spring terminal 1.

In this embodiment, the front end surface or the rear end surface of the contact mounting portion 101 is convexly provided with a first positioning protrusion 1013, and after the installation is completed, the first positioning protrusion 1013 abuts against the inner wall of the vertical insertion portion 202 to realize that the contact mounting portion 101 is tightly installed in the vertical insertion portion 202; the upper end surface or the lower end surface of the lower support part 102 is convexly provided with a second positioning convex buckle 1014, and after the installation is completed, the second positioning convex buckle 1014 is abutted against the inner wall of the transverse insertion part 201 to realize that the upper support part 104 is tightly installed in the transverse insertion part 201. Support through first location lug 1013 and establish in vertical grafting portion 202 and realized that contact installation portion 101 can the tight fit stable mounting in vertical grafting portion 202, support through second location lug 1014 and establish in horizontal grafting portion 201 and realized that support portion 104 can the tight fit stable mounting in vertical grafting portion 202.