阅读说明：本技术 一种具有长寿命特性的电连接器插孔组件 (Electric connector jack assembly with long service life characteristic ) 是由 胡月 赖登辉 陈定荣 于 2021-01-19 设计创作，主要内容包括：本发明公开了一种具有长寿命特性的电连接器插孔组件,包括插孔基体,所述插孔基体上沿着轴线设置有插孔腔,所述插孔腔内设置有弹性件,所述弹性件包括与插孔同轴设置的具有弹性形变能力的支撑体及同时具备弹性形变、载流能力的接触簧,所述接触簧同轴设置在支撑体内,所述插孔腔内包括有用于置放支撑体的第一腔体和用于放置接触簧的第二腔体。本发明的结构原理是将接触簧片接触时需要的载流能力与提供正压力的能力分到两个结构上去执行,通过将材料特性和结构特性进行优化组合形成支撑体结构,使得插孔组件在长时间、高频率拔插状态下不会因为发生塑性形变而无法提供足够的正压力,提高电连接器使用寿命的同时保证其连接的可靠性。(The invention discloses an electric connector jack component with long service life characteristic, which comprises a jack base body, wherein a jack cavity is arranged on the jack base body along an axis, an elastic part is arranged in the jack cavity, the elastic part comprises a supporting body which is coaxially arranged with a jack and has elastic deformation capacity and a contact spring which simultaneously has elastic deformation capacity and current carrying capacity, the contact spring is coaxially arranged in the supporting body, and the jack cavity comprises a first cavity for placing the supporting body and a second cavity for placing the contact spring. The structure principle of the invention is that the current carrying capacity and the capacity of providing positive pressure required by the contact reed are divided into two structures to be executed, and the material characteristic and the structural characteristic are optimized and combined to form the support body structure, so that the jack assembly can not provide enough positive pressure due to plastic deformation under the long-time and high-frequency plugging and unplugging state, the service life of the electric connector is prolonged, and the connection reliability of the electric connector is ensured.)

1. An electric connector jack assembly with long service life is characterized by comprising a first jack body and a second jack body which are respectively provided with jacks, wherein the first jack body is sequentially provided with a first step and a second step which are sunken in the axial direction of the jacks, the second jack body is sequentially provided with a third step and a fourth step which are sunken in the axial direction of the jacks, the first jack body is coaxially connected into the jacks of the second jack body,

after the first jack body and the second jack body are fixedly connected with each other, a first cavity is formed between the first step and the third step, a second cavity is formed between the second step and the fourth step,

the coaxial contact spring that is provided with the supporter that has elastic deformation ability, possesses elastic deformation and current-carrying capacity simultaneously in first cavity and second cavity, the coaxial setting of contact spring is in the supporter, the supporter sets up in first cavity, and the contact spring sets up in the second cavity.

2. An electrical connector receptacle assembly having long life characteristics as claimed in claim 1, wherein: the contact spring and the support body are both of crown spring structures, two ends of the contact spring are respectively connected to the inner wall surface of the second cavity, and a first included angle is formed between an end belt on the contact spring and the reed; the two ends of the supporting body are respectively connected to the inner wall surface of the first cavity, a second included angle is formed between the end belt on the supporting body and the reed, and the first included angle is not equal to the second included angle.

3. The electrical connector jack assembly of claim 2, wherein said support body is made of spring steel, said spring plate of said support body has an arc-shaped surface protruding toward said contact spring along the axial direction, and an inner wall surface of said spring plate of said support body is adapted to support said spring plate of said contact spring.

4. An electrical connector receptacle assembly having long life characteristics as claimed in claim 3, wherein: the length of the first cavity is greater than the length between two ends of the support body in a natural state, and the end belt of the support body extends towards two ends along the wall surface of the first cavity after being extruded.

5. An electrical connector receptacle assembly having long life characteristics as claimed in claim 1, wherein:

the contact spring is of a crown spring structure, two ends of the contact spring are respectively connected to the inner wall surface of the second cavity, and a first included angle is formed between an end belt on the contact spring and the reed; the supporter is both ends open-ended tubular structure, and the one end and the first cavity internal face of supporter are connected, and the other end of supporter is unsettled, has the second contained angle between the cylindric wall of supporter and the axis, first contained angle and second contained angle inequality.

6. An electrical connector receptacle assembly having long life characteristics as recited in claim 5, wherein: the diameters of two ends of the cylindrical structure of the supporting body are unequal, a circle of outer edge extends outwards along the radial direction in the circumferential direction of one end with the large diameter of the cylindrical structure, and the outer edge is used for positioning and connecting the supporting body and the first cavity.

7. An electrical connector receptacle assembly having long life characteristics as recited in claim 6, wherein: an inward-sinking notch is formed in the end face of a third step in the second jack body, a closed-loop groove is formed between the notch and the end face of the first jack body, and the outer edge of the cylindrical structure is embedded into the groove.

8. An electrical connector receptacle assembly having long life characteristics as recited in claim 5, wherein: the end face of the end with small diameter of the cylindrical structure is of a spherical cambered surface structure and is suspended in the first cavity.

9. An electrical connector receptacle assembly having long life characteristics as recited in claim 8, wherein: a plurality of split openings are formed in the direction of the cylindrical wall surface from one end of the cylindrical structure with a small diameter, the cylindrical wall surface is divided into a plurality of independent petal-shaped structures by the split openings, and the width of each split opening is smaller than that of each contact spring leaf.

10. An electrical connector jack assembly having long life characteristics as claimed in any one of claims 5 to 9, wherein: the supporting body is made of rubber plastic material or metal material,

when the supporting body is made of rubber and plastic materials, the suspended end of the supporting body applies acting force to the contact spring by utilizing the elasticity of the supporting body,

when the supporting body is made of metal, the suspended end of the supporting body limits the deformation amount of the contact spring by using the rigidity of the metal.

Technical Field

The invention relates to the field of electric connectors, in particular to a jack assembly for prolonging the service life of an electric connector used by the electric connector.

Background

The service life of the electric connector is prolonged, and meanwhile, the current carrying capacity of the electric connector is required to be kept, which is the development trend of the current electric connector, a traditional common electric connection contact mode is that a contact spring provides current carrying capacity and positive pressure, the contact spring is usually made of beryllium copper and is limited by the performance of the material, so that the contact spring can lose effectiveness due to stress relaxation and plastic deformation after certain plugging quantity, and cannot be reset, reliable contact between an elastic part and a contact part can not be carried out, signal instantaneous interruption can occur in the use process, and reliable normal use of the contact spring can not be ensured.

The published application (2019103923139), and the published patent (CN 210224392U) both solve the current carrying capacity problem of the current contact spring well, but do not provide good help for the service life of the contact spring and the existing structure. At present, the electric connectors in the contact spring structure form basically have the condition that the insertion and extraction force is attenuated very fast after a certain service life, and the contact reliability after the service life cannot be ensured.

Disclosure of Invention

The invention aims to design a novel elastic piece combined structure, so that the whole assembly can meet the current-carrying capacity and the requirement of long service life.

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

an electric connector jack assembly with long service life characteristic comprises a first jack body and a second jack body which are respectively provided with jacks, wherein the first jack body is sequentially provided with a first step and a second step which are sunk inwards along the axial jack, the second jack body is sequentially provided with a third step and a fourth step which are sunk inwards along the axial jack, the first jack body is coaxially connected into the jack of the second jack body,

after the first jack body and the second jack body are fixedly connected with each other, a first cavity is formed between the first step and the third step, a second cavity is formed between the second step and the fourth step,

the coaxial contact spring that is provided with the supporter that has elastic deformation ability, possesses elastic deformation and current-carrying capacity simultaneously in first cavity and second cavity, the coaxial setting of contact spring is in the supporter, the supporter sets up in first cavity, and the contact spring sets up in the second cavity.

In the technical scheme, the contact spring and the support body are both in a crown spring structure, two ends of the contact spring are respectively connected to the inner wall surface of the second cavity, and a first included angle is formed between an end belt on the contact spring and the reed; the two ends of the supporting body are respectively connected to the inner wall surface of the first cavity, a second included angle is formed between the end belt on the supporting body and the reed, and the first included angle is not equal to the second included angle.

In the above technical solution, the support body is made of spring steel, the reed on the support body has an arc-shaped surface protruding toward the contact spring along the axial direction, and the inner wall surface of the reed on the support body is used for supporting the reed on the contact spring.

In the technical scheme, the length of the first cavity is greater than the length between the two ends of the support body in a natural state, and the end belt of the support body extends towards the two ends along the wall surface of the first cavity after being extruded.

In the technical scheme, the contact spring is of a crown spring structure, two ends of the contact spring are respectively connected to the inner wall surface of the second cavity, and a first included angle is formed between an end belt on the contact spring and the reed; the supporter is both ends open-ended tubular structure, and the one end and the first cavity internal face of supporter are connected, and the other end of supporter is unsettled, has the second contained angle between the cylindric wall of supporter and the axis, first contained angle and second contained angle inequality.

In the above technical solution, the diameters of the two ends of the cylindrical structure of the support body are not equal, a circle of outer edge extends outwards along the radial direction in the circumferential direction of the end with the large diameter on the cylindrical structure, and the outer edge is used for positioning and connecting the support body and the first cavity.

In the above technical scheme, an end face of a third step in the second jack body is provided with an inward-sinking notch, a closed-loop groove is formed between the notch and the end face of the first jack body, and an outer edge of the cylindrical structure is embedded in the groove.

In the above technical scheme, the end face of the end with a small diameter of the cylindrical structure is a spherical cambered surface structure and is suspended in the first cavity.

In the technical scheme, a plurality of split openings are formed in the direction of the cylindrical wall surface from the end with the small diameter of the cylindrical structure, the cylindrical wall surface is divided into a plurality of independent petal-shaped structures by the split openings, and the width of each split opening is smaller than that of the contact spring reed.

In the technical proposal, the supporting body is made of rubber plastic material or metal material,

when the supporting body is made of rubber and plastic materials, the suspended end of the supporting body applies acting force to the contact spring by utilizing the elasticity of the supporting body,

when the supporting body is made of metal, the suspended end of the supporting body limits the deformation amount of the contact spring by using the rigidity of the metal.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

the structure principle of the invention is that the current-carrying capacity and the capacity of providing positive pressure required by the contact reed are divided into two structures to be executed, the contact reed provides current-carrying and partial positive pressure, and the support body provides main positive pressure. The supporting body structure is formed by optimally combining the material characteristics and the structural characteristics, so that the electric connector cannot provide enough positive pressure due to plastic deformation under the long-time and high-frequency plugging and unplugging state, the service life of the electric connector is prolonged, and the connection reliability of the electric connector is ensured.

Drawings

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

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic structural view of a support body according to a second embodiment;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

wherein: the structure comprises a first jack body 1, a second jack body 2, a first step 1-1, a second step 1-2, a third step 2-1, a fourth step 2-2, a second cavity 3, a contact spring 4, a first cavity 5, a support body 6, a groove 7, an outer edge 6-1, a spherical cambered surface 6-2 and a split opening 6-3.

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

As shown in fig. 1, the jack body includes a first jack body 1 and a second jack body 2, wherein the first jack body 1 is coaxially provided with a jack, and the inward-sinking jack sequentially includes a first step 1-1 and a second step 1-2 from outside to inside; the second jack body is coaxially provided with jacks, and the inward-sinking jack sequentially comprises a third step 2-1 and a fourth step 2-2 from outside to inside; the first jack body 1 and the second jack body 2 are mutually inserted and connected, and the first jack body 1 is coaxially inserted into the second jack body 2 and fixedly connected.

After the first jack body 1 and the second jack body 2 are connected, a first cavity 5 is formed between the end surfaces of the first step 1-1 and the third step 2-1 and used for placing a support body 6, and a second cavity 3 is formed between the second step 1-2 and the fourth step 2-2 and used for placing a contact spring 4.

In the present embodiment, the first cavity 5 and the second cavity 3 are coaxial and overlap, the first cavity 5 being disposed within the second cavity 3.

In this embodiment, the elastic member includes two independent structures, namely a contact spring and a support body, the contact spring adopts a conventional crown spring structure, the support body has a structure similar to that of the contact spring, and the support body is sleeved on the outer periphery of the contact spring. Two end parts of the support body are attached to the inner wall surface of the first cavity, and the axial length of the support body in a natural state is smaller than that of the first cavity; and two ends of the contact spring are attached to steps which are arranged at two ends of the second cavity and protrude relative to the first cavity, so that the waist of the contact spring is completely supported by the waist of the support body. When the contact element is inserted, the contact reed is completely acted on the contact reed of the support body after being extruded by the extrusion force, so that the contact reed and the support body reed are elastically deformed simultaneously, positive pressure is provided, and two ends of the support body extend towards two ends along the inner wall surface of the first cavity under the action of the extrusion force; when the contact piece is separated, the support body automatically resets under the action of elasticity, and simultaneously, the reed of the contact spring resets by utilizing the elasticity of the reed and the reset acting force of the support body.

In order to ensure that each leaf of the support body can support and lift the leaf of the contact spring: on the contact spring, a first included angle is formed between each reed and the end belt, and the included angle can be any angle. And on the supporting body, a second included angle is formed between each reed and the end belt, the second included angle can be any angle, but the first included angle cannot be equal to the second included angle. Only under the condition that the two included angles are not equal, the reed of the support body can completely support the reed of the contact spring.

In this embodiment, the supporter is in order to have good support elasticity, therefore its material chooses for use the spring steel, and the spring steel has high fatigue life, can guarantee that the supporter still does not take place plastic deformation and stress relaxation after inserting and pulling out many times to the contact reliability after the long-life has been guaranteed.

Example two

As shown in fig. 2, the structure of the supporting body is replaced on the basis of the first embodiment, and a structure completely different from the contact spring is used for realizing the supporting function.

As shown in fig. 3 and 4, the support body 6 of the present embodiment has a cylindrical structure, and the diameter of one end is larger than that of the other end of the support body 6. At the end with the large diameter, the circumference of the end extends outwards along the radial direction to form a circle of outer edge 6-1, at the end with the small diameter, a plurality of notches 6-3 are arranged along the cylindrical wall surface of the end from the end part, and the end surface of the end with the small diameter is of a spherical cambered surface structure 6-2.

In this embodiment, the supporting body with a cylindrical structure may be made of plastic or rubber, and the elastic property of the material itself is utilized to enable the supporting body to automatically reset after being extruded and deformed. In order to realize the outward expansion function of the circumference of the spherical cambered surface, the cylindrical wall surface is divided into a plurality of parts by the split openings on the cylindrical structure, and the width of the split opening is smaller than that of the contact spring reed, so that the support force can be provided for each reed.

In this embodiment, in order to fix the supporting body 6, an inward-depressed notch is formed on the third step of the second jack body 2, when the first jack body 1 and the second jack body 2 are connected, a circle of groove is formed between the end surface of the first jack body 1 and the inward-depressed notch, and the outer edge 6-1 of the supporting body 6 is arranged in the groove and is fixed by the first jack body 1 and the second jack body 2. The spherical cambered surface structure 6-2 of the support body 6 is arranged in a hanging mode and is in a free deformation state, the contact spring is arranged in the support body, the spherical surface structure at one end with a small diameter on the support body is completely contacted with the waist of the reed of the contact spring, the function of supporting the waist is achieved, and the reset effect after the contact spring reed is subjected to extrusion deformation is achieved through the physical characteristics of the material of the support body.

Because the supporter adopts plastics/rubber material, the sphere arc structure on the supporter utilizes material self resilience to give the contact spring with reaction force, make and keep stable normal pressure between contact spring and the contact pin, because the spheroid adopts plastics/rubber material, it relies on self resilience in order to give normal pressure, difficult emergence plastic deformation, the spheroid has restricted the deflection of contact spring simultaneously, consequently can effectively reduce the possibility of contact spring after inserting and pulling out many times and under the inclined to one side condition plastic deformation, can guarantee long-life, insert the contact reliability under the condition partially.

EXAMPLE III

On the basis of the structure of the second embodiment, the support body is made of a metal material, and the metal material of the support body is different from the metal material and the stress structure of the contact spring. The supporter compares in its material of contact spring itself and has obvious antifatigue life, and the supporter adopts cantilever beam structure and deflection is little simultaneously, and its structural fatigue life also obviously is superior to the contact spring. When the contact spring is sleeved in the support body, the distance between the contact spring and the inner wall of the support body is smaller than the plastic deformation amount of the contact spring, and the plastic deformation of the contact spring is blocked by the rigidity of the support body.

When the contact pins are inserted oppositely, even if an eccentric insertion phenomenon occurs, the rigidity property of the support body can prevent the contact plastic deformation caused by the deviation of the contact pins. The possibility of plastic deformation of the contact spring after multiple times of insertion and pulling and under the condition of partial insertion can be effectively reduced, and the contact reliability under the conditions of long service life and partial insertion can be ensured.

The 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 any novel method or process steps or any novel combination of features disclosed.