CN114628932B

CN114628932B - Connector terminal and connector

Info

Publication number: CN114628932B
Application number: CN202210382908.8A
Authority: CN
Inventors: 李运明; 钟帅; 景瑞; 李伟; 叶永福
Original assignee: Sichuan Yonggui Science and Technology Co Ltd
Current assignee: Sichuan Yonggui Science and Technology Co Ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2023-10-17
Anticipated expiration: 2042-04-13
Also published as: CN114628932A

Abstract

The invention discloses a connector terminal and a connector, comprising a terminal base body and an elastic contact piece, wherein the plug-in end of the terminal base body is of a U-shaped structure, at least one first clamping groove is arranged on each side surface in the U-shaped structure along the direction perpendicular to the plug-in direction, the elastic contact piece is a ring spring, and the ring spring is compressed and then arranged in the first clamping groove; the bracket in the invention not only can further improve the assembly efficiency of the terminal, but also can effectively ensure that the terminal forms good contact and ensures stable electrical and mechanical properties through the mutual coordination and fixation among the terminal base body, the elastic contact piece, the bracket and the buckle cover.

Description

Connector terminal and connector

Technical Field

The invention relates to the field of electric connectors, in particular to a connector terminal and a connector.

Background

The commonly used connector terminal structure can be divided into the following two cases: the first is composed of a terminal base body and an elastic contact piece, or the terminal base body and the elastic contact piece are integrally formed. The terminal substrate is usually machined or stamped, but the terminal substrate produced by the two machining modes has obvious disadvantages such as low material utilization rate, long manufacturing period, complex structure and inconvenient assembly, and the terminal has high cost and unstable electrical and mechanical properties. Aiming at the defects existing in the prior terminal, the technical scheme of the terminal needs to be innovatively designed.

The disclosure patent CN111653888A discloses a chip jack structure and a connector, in which the reliability of contact is solved by additionally adding an elastic contact element in a U-shaped opening, but the elastic contact element adopts an externally hung connection mode, so that the elastic contact element is easily pulled out of the U-shaped structure when receiving a pulling-out force, and the connector is caused to fall off.

Disclosure of Invention

The invention aims to design a novel connector terminal and a novel connector based on the prior art, and the novel connector terminal and the novel connector can improve the connection reliability and ensure the connection performance.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a connector terminal comprises a terminal base body and an elastic contact piece, wherein the plug-in end of the terminal base body is of a U-shaped structure, at least one first clamping groove is arranged on each side surface in the U-shaped structure along the direction perpendicular to the plug-in direction,

the elastic contact piece is a ring spring, and the ring spring is compressed and then arranged in the first clamping groove.

In the above technique, a clasp cover is included, which is connected to the end of the U-shaped structure, and is provided with an opening through both ends.

In the above technology, the insertion starting positions of the two sides of the U-shaped structure are provided with bosses, and the end parts of the buckle cover corresponding to the bosses are provided with grooves.

In the above technique, a side wall is provided on the end face where the groove is located.

In the above technology, the two sides of the U-shaped structure are respectively provided with a first limiting hole, and a first buckle is arranged at a position on the inner wall of the buckle cover corresponding to the first limiting hole.

In the above-mentioned technique, including the support, the support includes the crossbeam, and a longeron is connected respectively at the both ends of crossbeam, have the open structure that both ends link up along the direction of longeron grafting on the crossbeam, be provided with the second draw-in groove on the longeron, the ring spring ring cover is in the second draw-in groove of two longerons, in the U-shaped structure is inserted as an organic whole with the support to the elastic contact element, the ring spring corresponds the setting in first draw-in groove.

In the above technology, at least two first clamping grooves are formed in each side face in the U-shaped structure, and a third clamping groove is formed between two adjacent first clamping grooves.

In the technology, two second clamping grooves are symmetrically arranged on one longitudinal beam along the cross beam, the ring springs arranged in the second clamping grooves are respectively matched with the first clamping grooves, the cross beam is arranged in the third clamping groove,

the third clamping groove is internally provided with a second limiting hole penetrating through the side face of the U-shaped structure, the cross beam is provided with a second buckle, and the second buckle is matched with the second limiting hole.

In the above-mentioned technology, including the buckle cover and the bracket,

the bracket comprises a cross beam, two ends of the cross beam are connected with a longitudinal beam in a distributed manner, the cross beam is provided with an opening structure with two through ends along the inserting direction, the longitudinal beam is provided with a second clamping groove,

the ring spring is sleeved in the second clamping grooves of the two longitudinal beams, the elastic contact piece and the bracket are integrally inserted into the U-shaped structure, the ring spring is correspondingly arranged in the first clamping groove,

the buckle cover is connected to the end part of the U-shaped structure, and is provided with an opening with two ends penetrating.

A connector includes a connector housing, an insulator provided in the connector housing, and a terminal structure mounted in the insulator, the connector employing the connector terminal described above.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

the terminal matrix is a section bar (a constant cross-section structure), and is cut into parts with different length specifications along the forming direction perpendicular to the section bar aiming at terminals with different electrical and mechanical property requirements, and the terminals can be assembled into a whole with an elastic contact piece, a bracket (optional and optional) and a buckle closure (optional and optional) after being electroplated without subsequent cutting processing or only simple cutting processing, wherein the terminal matrix and the ring spring are indispensable parts. Through the use of the section bar, the material utilization rate is greatly improved, the cost is reduced, the section bar is simple in structure, and the processing and assembly time of parts is effectively reduced. The support not only can further promote the assembly efficiency of terminal, detain the mutual lock of recess and the boss that the open position of U-shaped structure set up on the lid, can restrict the open area of U-shaped structure outwards to expand or inwards shrink, through terminal base member, elastic contact spare, support, buckle closure each position between mutually supporting and fixed, can guarantee effectively that the terminal forms good contact, guarantee that it has stable electric and mechanical properties.

Drawings

The invention will now be described by way of example and with reference to the accompanying drawings in which:

fig. 1 and 2 are schematic structural views of a terminal base;

FIG. 3 is a schematic view of the structure of the spring contact;

fig. 4, 5 and 6 are schematic structural views of the buckle cover;

FIG. 7 is a schematic structural view of a bracket;

fig. 8 and 9 are assembly schematic views;

fig. 10, 11 and 12 are schematic views of the structure after the assembly is completed;

fig. 13 is a schematic structural view of a profile of the terminal base.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

The terminal base 1 and the ring spring 2 are indispensable parts, and the buckle cover and the bracket are assembled according to actual situations, so that the terminal base 1 and the ring spring 2 have various assembly modes. Wherein:

the terminal base body, as shown in fig. 1 and 2, includes a contact portion 1-2 and a wiring portion 1-3, wherein the contact portion 1-2 is a U-shaped structure 1-1 with three sides open. The splicing initial positions of the two side surfaces of the U-shaped structure 1-1 are provided with bosses 1-11, and the side surfaces of the bosses 1-11 are provided with first limiting holes 1-12. The two side surfaces in the U-shaped structure 1-1 are respectively provided with a first clamping groove 1-21 and a third clamping groove 1-22, the two side surfaces in the U-shaped structure 1-1 are also provided with a through second limiting hole 1-23, and the second limiting hole 1-23 is communicated into the third clamping groove 1-22.

As shown in fig. 4, the buckle cover is configured to be connected to an end of the terminal base, and is provided with a through opening, which corresponds to the U-shaped structure 1-1. Two grooves 3-1 are respectively formed in two end faces of the buckle cover, the grooves 3-1 are used for being clamped with the side faces of the U-shaped structure 1-1, a first buckle 3-2 is arranged on the inner wall of the buckle cover, the first buckle 3-2 is matched with the first limiting hole 1-12, a limiting boss 3-11 or 3-12 is arranged between the two grooves 3-1, the U-shaped structure 1-1 is limited to expand outwards or shrink inwards, the stability of the size of the opening of the terminal is guaranteed, and therefore stable electric connection performance of the terminal is guaranteed. As shown in fig. 5, which is an extension of the structure of fig. 4, a sidewall 3-3 is added to the end face of the buckle cover. As shown in fig. 6, which is an extension of the structure of fig. 5, the length of the side edges 3-3 can be increased, and the elastic contact element in the U-shaped structure 1-1 can be prevented from sliding off from the side.

As shown in FIG. 7, the bracket is a schematic structural diagram, and comprises a cross beam 4-2 and longitudinal beams respectively connected to two ends of the cross beam 4-2, wherein the longitudinal beams are symmetrically connected with the cross beam 4-2, and the whole bracket is in an I-shaped structure. Wherein, the beam 4-2 is provided with a through opening structure along the direction of the longitudinal beam, the longitudinal beam is provided with a second clamping groove 4-1, the outer side surface of the beam 4-2 is provided with a second clamping buckle 4-3, and the second clamping buckle 4-3 is matched with the second limiting hole 1-23.

Example 1

As shown in fig. 8, the ring spring 2 shown in fig. 3 is compressed, and then enters from the side surface of the terminal base body, two sides of the ring spring 2 are respectively clamped in the first clamping grooves 1-21, and the central ring of the ring spring is compressed and then is parallel to the opening of the U-shaped structure 1-1. When the external connector is inserted into the ring spring in the U-shaped structure 1-1, the ring spring 2 is limited by the first clamping groove 1-21, the ring spring 2 cannot be taken out of the U-shaped structure 1-1 due to stress, and meanwhile, the first clamping groove 1-21 is kept in electrical contact with the ring spring 2, so that current conduction is realized.

Example two

As shown in fig. 9, on the basis of the first embodiment, a bracket is added, a ring spring 2 is sleeved on a longitudinal beam on the bracket in a ring mode, the ring spring is limited by a second clamping groove 4-1, and then the bracket is integrally inserted into a U-shaped structure 1-1. The ring spring is clamped in the first clamping groove 1-21, the cross beam 4-2 of the bracket is clamped into the third clamping groove 1-22, and the second clamping buckle 4-3 on the outer side of the cross beam 4-2 is matched with the second limiting hole 1-23.

Example III

As shown in fig. 10, a buckle closure is added on the basis of the first embodiment, and the added buckle closure is as shown in fig. 5.

As shown in fig. 11, a buckle cover is added on the basis of the second embodiment, and the added buckle cover is shown in fig. 4.

As shown in fig. 12, a buckle closure is added on the basis of the first embodiment, and the added buckle closure is as shown in fig. 6.

The contact part 1-2 is provided with a first clamping groove 1-21, and the elastic contact piece is assembled from the side of the terminal base body 1 after being compressed along the radial direction; further, the elastic contact may be assembled with the bracket and then mounted from the side of the terminal base. After the elastic contact piece is installed, the elastic contact piece is matched with the first clamping groove 1-21, so that the elastic contact piece 2 is prevented from loosening along the inserting and pulling direction, and meanwhile, the first clamping groove 1-21 is kept in electrical contact with the elastic contact piece 2, and current conduction is achieved. Further, the third clamping groove 1-22 is buckled with the cross beam 4-2, the second limiting hole 1-23 is buckled with the second buckle 4-3, and the assembly and the fixation of the bracket and the terminal matrix are ensured. Further, the boss 1-11 is matched with the groove 3-1, and the limiting bosses 3-11 and 3-12 on two sides of the groove 3-1 limit the U-shaped structure 1-1 to expand outwards or shrink inwards, so that the stability of the size of the opening of the terminal is ensured, and the stable electric connection performance of the terminal is ensured. Further, the first limiting hole 1-12 is buckled with the first buckle 3-2, so that the assembly and fixation of the buckle cover and the terminal matrix are ensured; further, if the buckle cover shown in fig. 11 is selected, the side wall 3-3 of the buckle cover can prevent the elastic contact element in the U-shaped structure 1-1 from sliding off from the side.

In all embodiments, the terminal base body is a section, all structural features on the section are formed at one time (with a uniform cross-section structure) in a drawing or extrusion mode, as shown in fig. 13, the terminal is cut into parts with different length specifications along the forming direction perpendicular to the section for terminals with different electrical and mechanical property requirements, and the plated terminal base body can be assembled into a whole with an elastic contact piece, a bracket (optional ) and a buckle closure (optional) without subsequent cutting processing or only simple cutting processing. Through the use of the section bar, the material utilization rate is greatly improved, the cost is reduced, the section bar is simple in structure, and the processing and assembly time of parts is effectively reduced. The support not only can further promote the assembly efficiency of terminal, but also through mutually supporting and fixing between terminal base member, elastic contact spare, support, the buckle closure each position, can guarantee effectively that the terminal forms good contact, guarantees that it has stable electric and mechanical properties.

In the embodiment of the connector of the present invention, the connector includes a connector housing, an insulator disposed in the connector housing, and a terminal structure mounted in the insulator, and the terminal is the same as the structure in the above-mentioned embodiment of the terminal of the present invention, and will not be described again.

The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.

Claims

1. The utility model provides a connector terminal, includes terminal base member, elastic contact element, buckle closure, support, its characterized in that:

the connecting and inserting end of the terminal base body is of a U-shaped structure with three open sides, at least one first clamping groove is arranged on each side surface in the U-shaped structure along the direction perpendicular to the connecting and inserting direction,

the elastic contact piece is a ring spring which is compressed and then arranged in the first clamping groove;

the buckling cover is connected to the end part of the U-shaped structure, an opening with two through ends is arranged on the buckling cover, a boss is arranged at the insertion starting position of the two side surfaces of the U-shaped structure, and a groove is arranged at the end part of the buckling cover corresponding to the boss;

the support includes the crossbeam, and a longeron is connected respectively at the both ends of crossbeam, have the opening structure that both ends link up along the grafting direction on the crossbeam, be provided with the second draw-in groove on the longeron, ring spring ring cover is in the second draw-in groove of two longerons, in elastic contact spare inserts U-shaped structure as an organic whole with the support, ring spring corresponds the setting in first draw-in groove.

2. A connector terminal according to claim 1, wherein a side wall is provided on the end face where the recess is located.

3. The connector terminal according to claim 1, wherein the two sides of the U-shaped structure are respectively provided with a first limiting hole, and a first buckle is provided on the inner wall of the buckle cover at a position corresponding to the first limiting hole.

4. A connector terminal according to claim 1, wherein: each side in the U-shaped structure is provided with at least two first clamping grooves, and a third clamping groove is arranged between every two adjacent first clamping grooves.

5. A connector terminal according to claim 4, wherein:

two second clamping grooves are symmetrically arranged on one longitudinal beam along the transverse beam, the ring springs arranged in the second clamping grooves are respectively matched with the first clamping grooves, the transverse beam is arranged in the third clamping grooves,

6. A connector comprising a connector housing, an insulator provided in the connector housing, and a terminal structure mounted in the insulator, characterized in that the terminal structure is the connector terminal according to any one of claims 1 to 5.