阅读说明：本技术 一种增加稳定性的三棱接触式弹性pin针 (Stability-enhanced triangular contact type elastic PIN needle ) 是由 戴恩立 于 2020-09-10 设计创作，主要内容包括：本发明涉及电子行业的连接器零件技术领域,尤其是一种增加稳定性的三棱接触式弹性PIN针,弹性PIN针本体上设置有第一棱、第二棱以及第三棱,其中第一棱以及第二棱位于弹性PIN针本体的一侧表面,第三棱位于弹性PIN针本体的另一侧表面且相对于第一棱和第二棱布置；第一棱、第二棱和第三棱在弹性PIN针本体上相独立。本发明的优点是：增加接触稳定性；防扭、防零件本身自转,提高了接触可靠度；提高了产品插入时的稳定性,确保了弹性PIN针的位置装配精度,提升了自动装配后质量要求,提升了产品的可靠性；增强弹性模数,提高使用寿命；大大提高了生产效率,使得对不良品的管理也提升了,大大提高了品质。(The invention relates to the technical field of connector parts in the electronic industry, in particular to a triangular contact type elastic PIN needle with improved stability, wherein a first edge, a second edge and a third edge are arranged on an elastic PIN needle body, the first edge and the second edge are positioned on one side surface of the elastic PIN needle body, and the third edge is positioned on the other side surface of the elastic PIN needle body and is arranged opposite to the first edge and the second edge; the first ridge, the second ridge and the third ridge are independent on the elastic PIN needle body. The invention has the advantages that: increase contact stability; the torsion and the rotation of the part are prevented, and the contact reliability is improved; the stability of the product during insertion is improved, the position assembly precision of the elastic PIN needle is ensured, the quality requirement after automatic assembly is improved, and the reliability of the product is improved; the elastic modulus is enhanced, and the service life is prolonged; the production efficiency is greatly improved, the management of defective products is also improved, and the quality is greatly improved.)

1. The utility model provides a three-edged contact elasticity PIN needle of increase stability, includes elasticity PIN needle body, its characterized in that: the elastic PIN needle body is provided with a first ridge, a second ridge and a third ridge, wherein the first ridge and the second ridge are located on one side surface of the elastic PIN needle body, and the third ridge is located on the other side surface of the elastic PIN needle body and arranged opposite to the first ridge and the second ridge; the first ridge, the second ridge and the third ridge are independent on the elastic PIN needle body.

2. The three-edged contact type elastic PIN needle with increased stability of claim 1, wherein: the lengths of the first edge, the second edge and the third edge are matched with the depth of the hole wall of the jack.

3. The three-edged contact type elastic PIN needle with increased stability of claim 1, wherein: the third rim is disposed at a midpoint between the first rim and the second rim.

Technical Field

The invention relates to the technical field of connector parts in the electronic industry, in particular to a triangular contact type elastic PIN needle with improved stability.

Background

The connector part of the electronic industry is commonly called an elastic PIN needle. The bridge has the function of erecting a bridge connected with a blocked part or isolated and non-connected circuits in the circuit in a solderless grounding mode, so that current flows, and the circuit realizes a preset function.

The form and structure of the connector are various, and various forms of connectors are produced due to differences in the objects, frequencies, powers and application environments of the application, but whatever the connector is, in order to ensure smooth and reliable flow of the current.

The elastic PIN needle is a core part in the electronic industry, is pressed together with a PCB hole in a pressing mode, and completes the connection of an electric function in a solderless mode. Generally, a connector is composed of two contacts, a female contact and a male contact. The resilient PIN is called a male contact (the raw material is typically tin bronze and brass) and the PCB board is called a female contact. When the elastic PIN needle is inserted into the jack of the PCB, the male contact and the female contact occur, and the elastic force is generated by elastic deformation in a pressing mode, so that the male contact and the female contact form tight contact, and the electric function connection is completed.

Currently, the PIN precursor is a connector called a "fish eye" PIN, as shown in fig. 1 (a), while the second PIN is not "fish eye" shaped, which changes the "fish eye" hole into a solid PIN without holes or a resilient PIN with holes, as shown in fig. 1 (b). But they are all in press-fit contact with two edges.

However, the elasticity of the PIN in the prior art cannot be maintained for a long time, and the PIN often rotates and loosens during use, so that the PIN is unstable in contact and the like; meanwhile, the problem that the self-rotation cannot be fundamentally solved, the stability of the contact between the self-rotation and the PCB cannot be guaranteed, the bending deformation of the PIN needle cannot be guaranteed even in the installation precision of the assembly process, and the verticality cannot be guaranteed, so that the contact is unstable.

Therefore, the quality of the production mode cannot ensure zero defects, the working efficiency and the quality requirement of the whole production line are reduced, the production rejection rate is high, and the production cost is high.

Disclosure of Invention

The invention aims to provide a triangular contact type elastic PIN needle with increased stability according to the defects of the prior art, the concave-convex pressing between the triangular contact type elastic PIN needle and a PCB is realized to be supported on three sides through an independent triangular contact type structure design, the connection strength of a ridge is enhanced, the elastic PIN needle is stably inserted into an assembly jack, and the contact stability between the elastic PIN needle and the jack is increased.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a three-edged contact elasticity PIN needle of increase stability, includes elasticity PIN needle body, its characterized in that: the elastic PIN needle body is provided with a first ridge, a second ridge and a third ridge, wherein the first ridge and the second ridge are located on one side surface of the elastic PIN needle body, and the third ridge is located on the other side surface of the elastic PIN needle body and arranged opposite to the first ridge and the second ridge; the first ridge, the second ridge and the third ridge are independent on the elastic PIN needle body.

The lengths of the first edge, the second edge and the third edge are matched with the depth of the hole wall of the jack.

The third rim is disposed at a midpoint between the first rim and the second rim.

The invention has the advantages that: the pulling-out fastness of the elastic PIN needle is improved by adopting a triangular contact type pressing form; the elastic PIN needle is prevented from twisting (twisting left and right) and rotating, so that the elastic PIN needle is more stable and vibration resistant; the contact reliability is improved, the conductivity is increased, and the conductivity is more stable; the device has low input force and high drawing force, realizes the possibility of repeated plugging and unplugging, increases the utilization rate and prolongs the service life; the deformation of the PCB is reduced; the stability of the product during insertion is improved, the position assembly precision of the elastic PIN needle is ensured, the quality requirement after automatic assembly is improved, and the reliability of the product is improved; greatly improves the production efficiency, greatly improves the quality and can ensure zero defect.

Drawings

FIG. 1 is a schematic structural diagram of a PIN in the prior art;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is a schematic structural diagram of a three-edged contact type elastic PIN PIN inserted into a PCB in the invention;

FIG. 5 is a state diagram of FIG. 4;

FIG. 6 is a schematic diagram of the structure of the present invention;

FIG. 7 is a graph showing the result of the indentation force test of the 0.63mm elastic PIN of the present invention;

FIG. 8 is a drawing force test result chart of the 0.63mm elastic PIN of the present invention;

FIG. 9 is a graph showing the result of the indentation force test of the 0.8mm elastic PIN of the present invention;

FIG. 10 is a drawing force test result chart of the 0.8mm elastic PIN of the present invention;

FIG. 11 is a schematic diagram of the design and fabrication of the present invention;

FIG. 12 is a schematic diagram of the allowable variation range of the present invention;

FIG. 13 is a table of typical specifications for the present invention during manufacture;

FIG. 14 is a table of typical specifications for the present invention as manufactured.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:

as shown in fig. 1-14, the labels 1-7 are respectively shown as: elastic PIN needle 1, first arris 2, second arris 3, third arris 4, contact surface 5, PCB board 6, jack 7.