CN212676498U

CN212676498U - Contact spring for connector

Info

Publication number: CN212676498U
Application number: CN202021802071.0U
Authority: CN
Inventors: 陈定荣; 胡月
Original assignee: Sichuan Yonggui Science and Technology Co Ltd
Current assignee: Sichuan Yonggui Science and Technology Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-03-09
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a contact spring for connector, including two end areas and a plurality of connecting bands and the reed between two end areas, the connecting band is used for connecting two end areas, the one end and the end area of reed are connected, and the other end of reed is unsettled, it is the arc structure to have one section at least on the reed. The contact spring in the practicability has strong universality, can directly replace the existing crown spring, and does not need to change the size structure of the existing jack matrix; the utility model discloses in the use, the free end of reed does not contact with the jack base member, and this structure effect principle is cantilever beam effect principle, and this principle has guaranteed the softness of inserting, extracting the process, has reduced the damage to contact pin, contact spring, has increased the mechanical life of contact pin and contact spring.

Description

Contact spring for connector

Technical Field

The utility model relates to an electric connector field, concretely relates to contact spring for connector.

Background

The common elastic contact elements used in current electrical connectors are the pawl spring (see fig. 4) and the crown spring (see fig. 5).

The commonly used claw spring structure is composed of an end belt at one end and a plurality of reeds which are connected with the end belt and are arranged at intervals. Only one end of the claw spring is in contact with the jack contact element, and the claw spring and the contact pin contact element are in point contact through the free end of the reed, and the action principle of the claw spring is a cantilever beam. The claw spring contact has the characteristics of long mechanical life, but the inner hole of the jack body for mounting the claw spring is provided with a limiting circumferential step, and if the pin jack is inserted in a biased manner, the limiting platform can cause adverse effects on the claw spring.

The common crown spring structure is composed of a plurality of reeds which are arranged at intervals and connected with end belts at two ends, the crown spring is in contact with the end belts at two ends of the jack contact element and in surface contact with the contact pin contact element through the reeds, the action principle of the crown spring is a simply supported beam, and the reeds are restrained in the using process. The crown spring contact is characterized in that: large contact area, good conductivity, but poor mechanical life. The counterforce to the contact pin is big, and when the contact pin jack was inserted to, the contact pin surface was easily inserted and is damaged the exposure bottom layer, and its life-span is shorter to the crowned spring inserts the face that closes and easily appears blackening phenomenon.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing a novel contact spring by combining a crown spring, a claw spring and a shielding belt on the basis of the prior crown spring and the contact spring.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a contact spring for a connector comprises two end belts, a plurality of connecting belts and reeds between the two end belts,

a connecting belt is arranged for connecting the two end belts,

one end of the reed is connected with one end belt, the other end of the reed is suspended in the air,

at least one section of the reed is of an arc-shaped structure.

In the above technical solution, the arc structure on the reed is concave along the circumference of the contact spring.

In the above technical scheme, the reed, the connecting band and the end band rolling circle are in a concentric ring structure.

In the above technical scheme, the connecting band is of a straight structure.

In the above technical scheme, the end area includes first end area and second end area, and the both ends in two end areas are connected through first connecting band and second connecting band separately, be provided with a plurality of intermediate junction area between first end area and the second end area and be used for connecting two end areas, in first connecting band, second connecting band, a plurality of intermediate junction area, be provided with a plurality of reed between two adjacent connecting bands respectively, the one end and the first end area of reed are connected, and the other end and the second end area of reed are unsettled to correspond.

In the above technical solution, the reed includes an oblique straight section and an arc section connected to each other, one end of the oblique straight section is connected to the end band, one end of the arc section is suspended, and the oblique straight section and the end band, and the oblique straight section and the arc section are connected in a smooth transition manner.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the contact spring in the practicability has strong universality, can directly replace the existing crown spring, and does not need to change the size structure of the existing jack matrix;

the utility model discloses in the use, the free end of reed does not contact with the jack base member, and this structure effect principle is cantilever beam effect principle, and this principle has guaranteed the softness of inserting, extracting the process, has reduced the damage to contact pin, contact spring, has increased the mechanical life of contact pin and contact spring.

Drawings

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

FIG. 1 is a contact spring expanded state;

FIG. 2 is a sectional structure of the contact spring;

FIG. 3 is a block diagram of a contact spring;

FIG. 4 is a prior art pawl spring configuration;

FIG. 5 is a prior art crown spring construction;

wherein: 1-1 is a first end band, 1-2 is a second end band, 2-1 is a first connecting band, 2-2 is a second connecting band, 2-3 is a middle connecting band, and 3-1 and 3-2 are reeds.

Detailed Description

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

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

Example one

In this embodiment, a blanking process is performed on a copper strip material by using a stamping die, wherein the stamped copper strip material has a reed with one end connected with an end strip and the other end suspended, and the specific structure is as shown in fig. 1, the stamped copper strip material has two end strips, a first end strip 1-1 and a second end strip 1-2, the two end strips are connected by a plurality of connecting strips, wherein the first connecting strip 2-1 and the second connecting strip 2-2 are respectively connected at two ends of the first end strip 1-1 and the second end strip 1-2, and an intermediate connecting strip 2-3 is connected between the first end strip 1-1 and the second end strip 1-2. A plurality of reeds 3-1 are punched between the first connecting belt 2-1 and the middle connecting belt 2-3, and a plurality of reeds 3-2 are punched between the second connecting belt 2-2 and the middle connecting belt 2-3.

In the embodiment, only one intermediate connecting belt 2-3 is provided, and in order to have better effect, a plurality of intermediate connecting belts can be provided, and a plurality of reeds are arranged between two adjacent connecting belts in all the first connecting belt, the second connecting belt and the intermediate connecting belts.

For the reed structure, one end of the reed is connected with the end belt, the other end of the reed is suspended, and the reed is composed of an inclined straight section and an arc-shaped section, wherein the inclined straight section is connected with the end belt, and the inclined straight section is in smooth transition connection with the end belt and the inclined straight section and the arc-shaped section. The specific structure is shown in fig. 2, one end of each of the reeds 3-1 and 3-2 is connected with the first end belt 1-1, and the other end of each of the reeds 3-1 and 3-2 corresponds to the second end belt 1-2 but is not connected with the second end belt 1-2, so that the end is suspended. In this embodiment, one end of the inclined straight section of the reeds 3-1, 3-2 is connected with the first end belt 1-1, and the tail end of the arc section of the reeds 3-1, 3-2 is suspended correspondingly with the second end belt 1-2. In this embodiment, the ends of the arcuate segments of leaves 3-1, 3-2 do not have any other configuration.

As shown in fig. 3, the contact spring is wrapped in a circle, the reed, the connecting band and the end band are concentric and annular, and the arc-shaped structure on the reed is concave along the circumference of the contact spring.

In this embodiment, in order to embody a better contact effect, the spring is in an arc-shaped structure, but the connecting band is in a straight structure, and even after the whole contact spring is subjected to a rounding process, the connecting band is also in a straight structure.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. The utility model provides a contact spring for connector, includes two end belts and a plurality of connecting band and reed between two end belts, its characterized in that:

the connecting belt is arranged for connecting the two end belts,

at least one section of the reed is of an arc-shaped structure.

2. A contact spring for a connector as defined in claim 1, wherein said arcuate formation on said leaf spring is concave along the circumference of the contact spring.

3. The contact spring for a connector according to claim 1 or 2, wherein said spring plate, said connecting band, and said end band are formed in concentric ring structures.

4. The contact spring for the connector according to claim 1, wherein the end band comprises a first end band and a second end band, two ends of the two end bands are respectively connected through a first connecting band and a second connecting band, a plurality of intermediate connecting bands are arranged between the first end band and the second end band and are used for connecting the two end bands, a plurality of reeds are respectively arranged between two adjacent connecting bands of the first connecting band, the second connecting band and the plurality of intermediate connecting bands, one ends of the reeds are connected with the first end band, and the other ends of the reeds correspond to the second end band in a hanging manner.

5. A contact spring for a connector according to claim 1 or 4, wherein said spring plate comprises a straight section and an arc section connected to each other, one end of said straight section is connected to the end band, one end of the arc section is suspended, and the straight section is connected to the end band, and the straight section and the arc section are smoothly transited.

6. The contact spring as claimed in claim 1 or 4, wherein said connecting band has a flat structure.