CN211238110U

CN211238110U - Rivet type contact with many contact positions

Info

Publication number: CN211238110U
Application number: CN202020327161.2U
Authority: CN
Inventors: 周炳华; 罗涛; 卢明; 吴增礼; 王乾坤
Original assignee: Wujiang Dongfeng Electrical Equipment Co ltd
Current assignee: Wujiang Dongfeng Electrical Equipment Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-08-11
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a rivet type contact with many contact positions, including first nail tail, first through-hole, second nail tail, second through-hole, pin fin, contact plate, activity chamber, blotter, third through-hole, contact arch and fourth through-hole. A plurality of contact bulges are annularly distributed on the lower surface of the contact plate, the contact bulges are slightly higher than the lower surface of the contact plate, when the contact bulges are contacted with the contact element, a certain space is formed between the contact plate and the contact element, and the first through hole, the second through hole, the third through hole and the fourth through hole are matched to dissipate heat of the contact point part, so that the reduction of the service life of the contact point due to electric conduction overheating is avoided; the utility model discloses set up first nail tail and second nail tail into sliding connection, install the blotter simultaneously between first nail tail and second nail tail, can produce the impact between contact and contact, the blotter can absorb the impact force this moment, avoids long-term use and the phenomenon that leads to contact surface damage takes place.

Description

Rivet type contact with many contact positions

Technical Field

The utility model relates to a rivet type contact specifically is a rivet type contact with many contact positions, belongs to contact application technical field.

Background

The contactor is an electric appliance which utilizes a coil to flow current to generate a magnetic field in industrial electricity to close a contact so as to control a load, and comprises an electromagnetic system, a contact system and an arc extinguishing device; the contactor can be used for controlling power loads of factory equipment, electric heaters, working mother machines, various power units and the like, and not only can be used for switching on and switching off a circuit, but also has a low-voltage release protection function; the principle is that after the electromagnetic coil of the contactor is electrified, a strong magnetic field can be generated, so that the static iron core generates electromagnetic attraction to attract the armature and drive the contact to act: the normally closed contact is opened, and the normally open contact is closed, and the normally closed contact and the normally open contact are linked; when the coil is powered off, the electromagnetic attraction disappears, and the armature is released under the action of the release spring to restore the contact: the normally closed contact is closed, the normally open contact is opened, and the working principle of the direct current contactor is similar to that of a temperature switch.

In the prior art, rivet type contact has obtained extensive application in the contactor, and current rivet type contact can produce certain impact when contacting with the contact, and the wearing and tearing phenomenon appears in the bottom of contact easily after long-term the use, and present rivet type contact can produce the heat usually when with the contact between transfer current, contact between contact and the contact comparatively closely, the heat dissipation of being not convenient for can reduce the life of contact. Therefore, a rivet-type contact having multiple contact sites has been proposed to address the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a rivet-type contact having a plurality of contact positions to solve the above-mentioned problems.

The utility model realizes the purpose through the following technical proposal, a rivet type contact with a plurality of contact positions, which comprises a first nail tail, a buffer structure, a nail head, a contact plate, a contact bulge and a fourth through hole which are sequentially arranged from top to bottom;

the buffer structure comprises a movable cavity, a buffer pad, a second nail tail and a second through hole, the movable cavity is formed in the end face of the bottom end of the first nail tail, the top end of the second nail tail is sleeved inside the movable cavity, the buffer pad is located at the top end of the second nail tail, the buffer pad is sleeved inside the movable cavity, and a third through hole is formed in the surface of the buffer pad; the second through hole is formed in the top end of the second nail tail and penetrates through the bottom end of the second nail tail, and the second through hole is communicated with the movable cavity;

the top end of the first nail tail is provided with a first through hole, the fourth through hole penetrates through the contact plate and the nail head, and the first through hole, the second through hole, the third through hole and the fourth through hole are communicated with each other in sequence.

Preferably, the first nail tail is internally of a hollow structure, the second nail tail is of a boss type structure, and the first nail tail is in sliding connection with the second nail tail.

Preferably, the bottom end of the second nail tail is fixedly connected with the upper surface of the nail head, and the lower surface of the nail head is fixedly connected with the contact plate.

Preferably, the contact protrusions are fixedly connected to the lower surface of the contact plate, and the plurality of contact protrusions are annularly distributed at the bottom end of the contact plate.

Preferably, the contact plate and the nail head are both disc-shaped structures, and the sizes of the contact plate and the nail head are the same.

Preferably, the buffer pad adopts heat-resisting silica gel pad, and the buffer pad outward appearance is cyclic structure.

The utility model has the advantages that:

1. the utility model discloses it has a plurality of contact protrusions to distribute at the lower surface of contact plate ring shape, and contact protrusion is a little higher than the lower surface of contact plate, when contacting between contact protrusion and contact piece, can form certain space between contact plate and contact piece, and the first through-hole, second through-hole, third through-hole and fourth through-hole of deuterogamying dispel the heat to the contact position, avoid electrically conducting overheated and reduce the life of contact;

2. the utility model discloses set up first nail tail and second nail tail into sliding connection, install the blotter simultaneously between first nail tail and second nail tail, can produce the impact between contact and contact, the blotter can absorb the impact force this moment, avoids long-term use and the phenomenon that leads to contact surface damage takes place, and what the blotter adopted is heat-resisting silica gel material, and the heat resistance is good, and life is longer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

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

FIG. 2 is a connection diagram of the first nail tail and the second nail tail of the present invention;

fig. 3 is a connection diagram of the nail head and the contact plate of the present invention.

In the figure: 1. the nail comprises a first nail tail 11, a first through hole 2, a second nail tail 21, a second through hole 3, a nail head 4, a contact plate 5, a movable cavity 6, a buffer pad 61, a third through hole 7, a contact protrusion 8 and a fourth through hole.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, a rivet-type contact with multiple contact positions includes a first nail tail 1, a buffer structure, a nail head 3, a contact plate 4, a contact protrusion 7, and a fourth through hole 8, which are sequentially installed from top to bottom;

the buffer structure comprises a movable cavity 5, a buffer pad 6, a second nail tail 2 and a second through hole 21, wherein the movable cavity 5 is arranged on the end surface of the bottom end of the first nail tail 1, the top end of the second nail tail 2 is sleeved inside the movable cavity 5, the buffer pad 6 is positioned at the top end of the second nail tail 2, the buffer pad 6 is sleeved inside the movable cavity 5, and the surface of the buffer pad 6 is provided with a third through hole 61; the second through hole 21 is formed in the top end of the second nail tail 2, the second through hole 21 penetrates through the bottom end of the second nail tail 2, and the second through hole 21 is communicated with the movable cavity 5;

the top end of the first nail tail 1 is provided with a first through hole 11, the fourth through hole 8 penetrates through the contact plate 4 and the nail head 3, and the first through hole 11, the second through hole 21, the third through hole 61 and the fourth through hole 8 are communicated with each other in sequence.

The interior of the first nail tail 1 is of a hollow structure, the second nail tail 2 is of a boss type structure, and the first nail tail 1 and the second nail tail 2 are in sliding connection, so that the contact can have a certain buffering effect during working, and the contact is protected; the bottom end of the second nail tail 2 is fixedly connected with the upper surface of the nail head 3, the lower surface of the nail head 3 is fixedly connected with the contact plate 4, and the contact plate 4 is made of a metal material with better conductivity and plays a role in conducting current; the contact bulges 7 are fixedly connected to the lower surface of the contact plate 4, the contact bulges 7 are annularly distributed at the bottom end of the contact plate, and gaps can be formed between contacts and contact elements by the contact bulges 7, so that heat dissipation is facilitated; the contact plate 4 and the nail head 3 are both disc-shaped structures, and the sizes of the contact plate 4 and the nail head 3 are the same, so that the contact bulge 7 can be conveniently arranged on the lower surface of the contact plate 4; the buffer pad 6 adopts a heat-resistant silica gel pad, the outer surface of the buffer pad 6 is of an annular structure, the heat-resistant silica gel pad can play a role in buffering, and the buffer pad also has stronger heat resistance and prolongs the service life.

When the utility model is used, firstly, when the contact bulge 7 at the bottom end of the contact plate 4 is contacted with the contact element, the contact element can generate certain impact on the contact bulge 7, because the first nail tail 1 and the second nail tail 2 are in sliding connection, a buffer cushion 6 is arranged between the first nail tail 1 and the second nail tail 2, the generated impact can be absorbed by the buffer cushion 6, and the phenomenon of contact surface damage caused by long-term use can be avoided; the cushion pad 6 is made of heat-resistant silica gel material, has strong heat resistance and can prolong the service life of the cushion pad;

then after contact protrusion 7 is contacted with the contact, because contact protrusion 7 is a little higher than the lower surface of contact plate 4, and then can form the space the same with contact protrusion 7 height between contact plate 4 and the contact, can produce certain heat after the electric current conducts between contact protrusion 7 and the contact, cooperate first through-hole 11, second through-hole 21, third through-hole 61 and fourth through-hole 8 again and can dispel the heat to the contact is whole, can prolong the life of contact.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A rivet-type contact having multiple contact sites, comprising: comprises a first nail tail (1), a buffer structure, a nail head (3), a contact plate (4), a contact bulge (7) and a fourth through hole (8) which are sequentially arranged from top to bottom;

the buffer structure comprises a movable cavity (5), a buffer pad (6), a second nail tail (2) and a second through hole (21), the movable cavity (5) is arranged on the end face of the bottom end of the first nail tail (1), the top end of the second nail tail (2) is sleeved inside the movable cavity (5), the buffer pad (6) is located at the top end of the second nail tail (2), the buffer pad (6) is sleeved inside the movable cavity (5), and a third through hole (61) is formed in the surface of the buffer pad (6); the second through hole (21) is formed in the top end of the second nail tail (2), the second through hole (21) penetrates through the bottom end of the second nail tail (2), and the second through hole (21) is communicated with the movable cavity (5);

the top end of the first nail tail (1) is provided with a first through hole (11), the fourth through hole (8) penetrates through the contact plate (4) and the nail head (3), and the first through hole (11), the second through hole (21), the third through hole (61) and the fourth through hole (8) are communicated with each other in sequence.

2. A rivet-type contact having multiple contact sites according to claim 1, wherein: the first nail tail (1) is internally of a hollow structure, the second nail tail (2) is of a boss type structure, and the first nail tail (1) is connected with the second nail tail (2) in a sliding mode.

3. A rivet-type contact having multiple contact sites according to claim 1, wherein: the bottom end of the second nail tail (2) is fixedly connected with the upper surface of the nail head (3), and the lower surface of the nail head (3) is fixedly connected with the contact plate (4).

4. A rivet-type contact having multiple contact sites according to claim 1, wherein: the lower surface of the contact plate (4) is fixedly connected with the contact bulges (7), and the contact bulges (7) are distributed at the bottom end of the contact plate in an annular shape.

5. A rivet-type contact having multiple contact sites according to claim 1, wherein: the contact plate (4) and the nail head (3) are both disc-shaped structures, and the sizes of the contact plate and the nail head are the same.

6. A rivet-type contact having multiple contact sites according to claim 1, wherein: the buffer pad (6) adopts a heat-resistant silica gel pad, and the outer surface of the buffer pad (6) is of an annular structure.