CN219350090U

CN219350090U - Relay terminal pin anti-conduction structure and relay

Info

Publication number: CN219350090U
Application number: CN202222534455.4U
Authority: CN
Inventors: 董向舒; 刘振伟; 于荣爱; 匡毅超; 莫欣传
Original assignee: Dongguan Sanyou Auto Electric Co ltd
Current assignee: Dongguan Sanyou Auto Electric Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-07-14
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a relay terminal pin conduction preventing structure and a relay, comprising: a skeleton; a coil; an armature; a yoke; a movable reed; a housing; the base is provided with convex ribs on the surface; the NO terminal pin is arranged on one side of the convex rib on the base; NC terminal pins, which are arranged on the other side of the convex ribs on the base; when the base is assembled in the shell, the convex ribs are attached to the inner wall of the shell, so that a first cavity is formed at the NO end pin, a second cavity is formed at the NC end pin, and the first cavity and the second cavity are independent relatively. The first cavity and the second cavity are used for separating the NO terminal pin from the lower half part of the NC terminal pin, when the contact point generates splashes in the working process of the relay, the splashes randomly fall into the first cavity or the second cavity at two sides of the convex rib, and conduction short circuit between the NO terminal pin and the NC terminal pin is avoided.

Description

Relay terminal pin anti-conduction structure and relay

Technical Field

The utility model relates to the field of relays, in particular to a relay terminal pin conduction preventing structure and a relay.

Background

The relay is a common component in a control circuit, the controlled quantity in the circuit is changed through the change of input quantity, the purpose of automatic control and adjustment is achieved, the relay is widely applied to power electronic equipment, particularly in the control field of a high-voltage loop, the relay bears important execution tasks, the actuation and cutting-off actions of the high-voltage loop can be realized through the isolated operation of a working coil, the working performance of the relay is related to the safe use of the high-voltage loop, and therefore, the relay needs to have better current cutting-off capability and overload performance.

The existing automobile relay is characterized in that splashes and carbides of contact materials generated during arcing are accumulated in gaps between NO end pins and NC end pins, and after long-time work, the gaps are filled with the accumulated substances to cause short circuit between the NO end pins and the NC end pins of the relay, so that the relay is faulty or damaged.

Disclosure of Invention

In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present utility model provides a relay terminal pin conduction preventing structure and a relay. The problem that NO terminal pin and NC terminal pin are conducted due to contact material splashes and carbide accumulation can be solved.

The utility model adopts the technical proposal for solving the problems that:

a relay terminal pin conduction preventing structure, comprising: a housing; the base is provided with convex ribs on the surface; the NO terminal pin is arranged on one side of the convex rib on the base; NC terminal pins, which are arranged on the other side of the convex ribs on the base; when the base is assembled in the shell, the convex ribs are attached to the inner wall of the shell, so that a first cavity is formed at the NO end pin, a second cavity is formed at the NC end pin, and the first cavity and the second cavity are independent relatively.

Through adopting above-mentioned scheme for first cavity and second cavity separate the lower half of NO terminal pin and NC terminal pin, when the contact produced the splash in the relay course of the work, make the splash fall to in the first cavity or the second cavity of protruding muscle both sides at random, avoid making between NO terminal pin and the NC terminal pin switch on the short circuit.

Further, the NO terminal pin comprises an NO terminal contact part, an NO terminal fixing part and an NO terminal pin part which are integrally connected, and the NC terminal pin comprises an NC terminal contact part, an NC terminal fixing part and an NC terminal pin part which are integrally connected.

By adopting the scheme, through the installation of two independent individuals of the NO terminal pin and the NC terminal pin, compared with the common terminal pin, the terminal pin is only partially separated, and the risk of conduction between the terminal pins is reduced.

Further, the NO end contact portion is provided with a first stationary contact, and the NC end contact portion is provided with a second stationary contact.

By adopting the scheme, the conduction effect is realized for the relay.

Further, a movable contact swing space is arranged between the first fixed contact and the second fixed contact and is used for accommodating a movable reed contact on the armature.

Through adopting above-mentioned scheme, through movable reed contact up-and-down swing, realize with the intercommunication of NO terminal pin and NC terminal pin.

Further, the NO end fixing portion includes two first pins, and the NC end fixing portion includes two second pins.

Through adopting above-mentioned scheme, can fix NO terminal pin and NC terminal pin on the base, realize the assembly effect.

Further, the first plug pin and the second plug pin are respectively plugged on the bases at two sides of the convex rib.

By adopting the scheme, separation and grafting are realized, and grafting is stable.

Further, the bottom of the base is also provided with a bottom edge, and the bottom edge is vertically connected with the convex rib.

By adopting the scheme, the splash can be prevented from being exposed from the bottom of the shell, and the environment outside the shell is prevented from being polluted.

Further, the bottom edges and the convex ribs are consistent in height and are attached to the shell.

Through adopting above-mentioned scheme for first cavity and second cavity are equipped with the opening only the top, are convenient for receive the splash.

Further, a first clamping groove and a second clamping groove are further formed in the bottom edge, the first clamping groove is used for clamping the NO end pin part, and the second clamping groove is used for clamping the NC end pin part.

By adopting the scheme, the NO end pin part and the NC end pin part conveniently extend out of the shell, and the connection is convenient.

A relay comprises a framework, a coil, an armature, a yoke, a movable spring and a relay terminal pin conduction preventing structure.

By adopting the scheme, when the relay is in an operating state and arcing generates contact splashes and carbides, the splashes and the carbides can be stored in the first cavity and the second cavity, so that the risk of short circuit of the NO terminal pin and the NC terminal pin of the relay is avoided.

In summary, the relay terminal pin conduction preventing structure and the relay provided by the utility model have the following technical effects:

1. the NO end pin and the NC end pin are separated by the convex rib arranged on the base, so that the relative independence of the NO end pin and the NC end pin can be improved, and the conduction risk is reduced;

2. the assembled base and the convex ribs are connected in a gapless way to form two relatively independent first cavities and second cavities, so that the NO terminal pin is positioned in the first cavities, and the NC terminal pin is positioned in the second cavities;

3. the first cavity and the second cavity are large enough in space, and only the upper part of the first cavity is provided with an opening for receiving splashes generated by the contacts;

4. bottom edges are arranged at the bottoms of the first cavity and the second cavity, so that splashes can be prevented from being exposed outside the shell.

Drawings

FIG. 1 is a schematic view of a housing structure according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of C-C of FIG. 1;

FIG. 3 is a schematic view of the overall structure of a relay according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of one side of a base in the relay according to the embodiment of the present utility model.

Wherein the reference numerals have the following meanings: 1. a housing; 11. a skeleton; 12. a coil; 13. an armature; 14. a yoke; 15. a movable reed; 2. a base; 21. convex ribs; 22. a bottom edge; 221. a first clamping groove; 222. a second clamping groove; 3. NO terminal pin; 31. a NO end contact portion; 311. a first stationary contact; 32. a NO end fixing part; 321. the first plug pin; 33. a NO end pin part; 4. NC terminal pin; 41. NC end contact part; 411. a second stationary contact; 42. NC end fixing part; 421. the second plug pin; 43. NC terminal pin part; 5. a first cavity; 6. a second cavity.

Detailed Description

For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described and discussed below in conjunction with the accompanying drawings, and it is apparent that what is described herein is only a part, but not all, of the examples of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

For the purpose of facilitating an understanding of the embodiments of the present utility model, reference will now be made to the drawings, by way of example, of specific embodiments, and the various embodiments should not be construed to limit the embodiments of the utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Embodiment 1 of the utility model, referring to fig. 1-4, discloses a relay terminal pin conduction preventing structure and a relay: comprising the following steps:

the shell 1 is of a rectangular structure, one side of the shell 1 is provided with an opening, and a rectangular cavity is formed in the shell and used for accommodating and assembling the movement;

a base 2, wherein a convex rib 21 is arranged on the surface of the base 2, and the base 2 is a part of the movement;

the NO terminal pin 3 is arranged on one side of the convex rib 21 on the base 2;

the NC terminal pin 4 is arranged on the other side of the convex rib 21 on the base 2;

when the base 2 is assembled in the housing 1, the ribs 21 are attached to the inner wall of the housing 1, so that a first cavity 5 is formed at the NO terminal pin 3, a second cavity 6 is formed at the NC terminal pin 4, the first cavity 5 and the second cavity 6 are relatively independent, the first cavity 5 and the second cavity 6 separate the NO terminal pin 3 from the lower half part of the NC terminal pin 4, and when splashes are generated at the contacts in the working process of the relay, the splashes randomly fall into the first cavity 5 or the second cavity 6 at the two sides of the ribs 21, so that conduction short circuit between the NO terminal pin 3 and the NC terminal pin 4 is avoided.

Further, the NO terminal pin 3 includes an integrally connected NO terminal contact portion 31, an NO terminal fixing portion 32, and an NO terminal pin portion 33, the NC terminal pin 4 includes an integrally connected NC terminal contact portion 41, an NC terminal fixing portion 42, and an NC terminal pin portion 43, and by installing two separate units of the NO terminal pin 3 and the NC terminal pin 4, compared with the common terminal pin, the risk of conduction between the terminal pins is reduced.

Specifically, the NO-end contact portion 31 is provided with a first stationary contact 311, and the NC-end contact portion 41 is provided with a second stationary contact 411, so as to achieve a conducting effect for the relay. A movable contact swing space is arranged between the first stationary contact 311 and the second stationary contact 411, so as to accommodate a movable spring contact on the armature 13, and the movable spring contact swings up and down to communicate with the NO terminal pin 3 and the NC terminal pin 4. The NO end fixing portion 32 includes two first pins 321, and the NC end fixing portion 42 includes two second pins 421, so that the NO end pin 3 and the NC end pin 4 can be fixed on the base 2, thereby realizing the assembly effect. The first plug pins 321 and the second plug pins 421 are respectively plugged on the base 2 at two sides of the protruding ribs 21, so as to realize separation plug and stable plug.

Further, a bottom edge 22 is further provided at the bottom of the base 2, and the bottom edge 22 is vertically connected with the protruding rib 21, so that splashes can be prevented from being exposed from the bottom of the housing 1, and pollution to the environment outside the housing 1 can be avoided. The bottom edges 22 and the convex ribs 21 are consistent in height and are attached to the shell 1, so that openings are formed in the upper portions of the first cavity 5 and the second cavity 6, and splashes can be received conveniently. The bottom edge 22 is further provided with a first clamping groove 221 and a second clamping groove 222, the first clamping groove 221 is used for clamping the NO end pin portion 33, the second clamping groove 222 is used for clamping the NC end pin portion 43, so that the NO end pin portion 33 and the NC end pin portion 43 can extend out of the shell 1 conveniently, and connection is convenient.

The utility model also relates to a relay which comprises a framework 11, a coil 12, an armature 13, a yoke 14, a movable spring 15 and the relay terminal pin conduction preventing structure, so that when the relay is in an operating state and arcing generates contact splashes and carbides, the splashes and the carbides can be contained in the first cavity 5 and the second cavity 6, and the risk of short circuit of the relay NO terminal pin 3 and the NC terminal pin 4 is avoided.

The working principle and the steps of the relay are as follows:

referring to fig. 4, two first pins 321 of the NO pin 3 are inserted into the insertion holes on the base 2, and the positions where the first pins 321 are inserted are located in the insertion holes on the left side of the rib 21; two second pins 421 of the NC terminal pin 4 are inserted into the insertion holes on the base 2, and the positions where the second pins 421 are inserted are located in the insertion holes on the right side of the protruding rib 21. At this time, the NO end pin 33 is engaged with the first slot 221, and the NC end pin 43 is engaged with the second slot 222. And the NO-end contact portion 31 is provided above and below the movable reed contact corresponding to the NC contact portion. When the relay works, the coil 12 is electrified, a movable spring contact sucked down by the armature 13 is contacted with the NO end contact part 31, a working circuit is closed, and after the coil 12 stops being electrified, the armature 13 is reset upwards to be contacted with the NC contact part. When the relay is in long-term arcing to generate contact splashes and carbides, the splashes and the carbides randomly fall into the first cavity 5 and the second cavity 6 on two sides of the convex rib 21, so that the problem of short circuit between the NO terminal pin 3 and the NC terminal pin 4 caused by accumulation of the splashes and the carbides of the NO terminal pin 33 and the NC terminal pin 43 is effectively avoided.

1. the NO terminal pin 3 and the NC terminal pin 4 are separated by arranging the convex rib 21 on the base 2, so that the relative independence of the NO terminal pin 3 and the NC terminal pin 4 can be improved, and the conduction risk is reduced;

2. the assembled base 2 and the ribs 21 are connected without gaps to form two relatively independent first cavities 5 and second cavities 6, so that the NO terminal pin 3 is positioned in the first cavities 5, and the NC terminal pin 4 is positioned in the second cavities 6;

3. the space between the first cavity 5 and the second cavity 6 is large enough, and an opening is arranged only above the first cavity and the second cavity for receiving splashes generated by the contacts;

4. the bottoms of the first cavity 5 and the second cavity 6 are provided with bottom edges 22, so that splashes can be prevented from being exposed to the outside of the shell 1.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A relay terminal pin prevents switch-on structure, its characterized in that: comprising the following steps:

a housing (1);

a base (2), wherein the surface of the base (2) is provided with;

the NO terminal pin (3) is arranged on one side of the convex rib (21) on the base (2);

the NC terminal pin (4) is arranged on the other side of the convex rib (21) on the base (2);

when the base (2) is assembled in the shell (1), the ribs (21) are attached to the inner wall of the shell (1), so that a first cavity (5) is formed at the position of the NO terminal pin (3), a second cavity (6) is formed at the position of the NC terminal pin (4), and the first cavity (5) and the second cavity (6) are independent relatively.

2. The relay pin conduction preventing structure according to claim 1, wherein: the NO terminal pin (3) comprises an NO terminal contact part (31), an NO terminal fixing part (32) and an NO terminal pin part (33) which are integrally connected, and the NC terminal pin (4) comprises an NC terminal contact part (41), an NC terminal fixing part (42) and an NC terminal pin part (43) which are integrally connected.

3. The relay pin conduction preventing structure according to claim 2, wherein: the NO end contact part (31) is provided with a first stationary contact (311), and the NC end contact part (41) is provided with a second stationary contact (411).

4. A relay pin conduction preventing structure according to claim 3, wherein: a movable contact swing space is arranged between the first fixed contact (311) and the second fixed contact (411) and is used for accommodating a movable spring contact on the armature (13).

5. The relay pin conduction preventing structure according to claim 2, wherein: the NO end fixing part (32) comprises two first plug pins (321), and the NC end fixing part (42) comprises two second plug pins (421).

6. The relay pin conduction preventing structure according to claim 5, wherein: the first plug pins (321) and the second plug pins (421) are respectively plugged on the base (2) at two sides of the convex rib (21).

7. The relay pin conduction preventing structure according to claim 2, wherein: the bottom of the base (2) is also provided with a bottom edge (22), and the bottom edge (22) is vertically connected with the convex rib (21).

8. The relay pin conduction preventing structure according to claim 7, wherein: the bottom edges (22) and the convex ribs (21) are in the same height and are attached to the shell (1).

9. The relay pin conduction preventing structure according to claim 8, wherein: the bottom edge (22) is further provided with a first clamping groove (221) and a second clamping groove (222), the first clamping groove (221) is used for clamping the NO end pin part (33), and the second clamping groove (222) is used for clamping the NC end pin part (43).

10. A relay, characterized in that: the relay terminal pin conduction preventing structure comprises a framework (11), a coil (12), an armature (13), a yoke (14), a movable reed (15) and the relay terminal pin conduction preventing structure according to any one of claims 1-9.