CN219144533U

CN219144533U - W-shaped high-stability contact force press-connection terminal

Info

Publication number: CN219144533U
Application number: CN202320137000.0U
Authority: CN
Inventors: 陈�峰; 张洪波; 黄益健
Original assignee: Hangzhou Amphenol Jet Interconnect Technology Co Ltd
Current assignee: Hangzhou Amphenol Jet Interconnect Technology Co Ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-06-06
Anticipated expiration: 2033-02-07

Abstract

The utility model provides a W-shaped high-stability contact force press-connection terminal, which comprises a terminal body, wherein a front groove is formed in the middle of the front of the terminal body, and a left side elastic arm and a right side elastic arm are formed on two lateral sides of the front groove; the middle position of the bottom surface of the front groove is longitudinally provided with an arc-shaped bulge, the reverse side of the terminal body is provided with a reverse groove corresponding to the bulge so as to form a middle elastic structure, and the middle elastic structure, the left side elastic arm and the right side elastic arm form a W-shaped structure. The utility model has the beneficial effects that: the crimp connection terminal with elastic structures on two sides and in the middle is designed, so that the elastic contact force between the terminal and a PCB hole is effectively improved, and the high-precision and reliable connection of the terminal and the PCB is realized. Meanwhile, the middle elastic structure is provided with an opening structure, so that the damage to the inner side of the PCB hole when the terminal is inserted into the PCB hole is reduced while enough elastic force is provided.

Description

W-shaped high-stability contact force press-connection terminal

Technical Field

The utility model relates to the technical field of electrical equipment connectors, in particular to a W-shaped high-stability contact force press-connection terminal.

Background

The conventional connection mode of the high-speed connector terminal for the backboard and the PCB is as follows: the PCB hole is designed to be the round hole, and the terminal contact area is designed to be hollow water droplet structure, and when the terminal contact area inserts the PCB hole, the contact area can be pressed and warp and provide the contact force, but when this kind of terminal was used in the car trade, the reliability requirement was higher and higher, and current hollow connecting terminal is in the application process, and the friction force of terminal contact area and PCB hole is insufficient, and the risk of failure is higher, can not guarantee the reliable connection of signal between the electronic component.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a W-shaped high-stability contact force press-connection terminal.

The aim of the utility model is achieved by the following technical scheme. A W-shaped high-stability contact force press-connection terminal comprises a terminal body, wherein a front groove is formed in the middle of the front of the terminal body, and a left side elastic arm and a right side elastic arm are formed on the front groove along the two lateral sides; the middle position of the bottom surface of the front groove is longitudinally provided with an arc-shaped bulge, the reverse side of the terminal body is provided with a reverse groove corresponding to the bulge so as to form a middle elastic structure, and the middle elastic structure, the left side elastic arm and the right side elastic arm form a W-shaped structure.

Further, the left side elastic arm and the right side elastic arm are arc-shaped, and an elastic arm holding force providing section is formed at the intermediate position, and an elastic arm introducing section is formed at the front end position of the elastic arm holding force providing section.

Further, at least one elastic force adjusting hole is formed in the position, corresponding to the elastic arm holding force providing section, of the protrusion, and the number, shape, size and position of the elastic force adjusting holes are adapted to the required elastic force.

Further, the upper arc structures are formed at the corners of the upper parts of the sections of the left side elastic arm and the right side elastic arm, the bottom arc structures are formed at the corners of the bottoms of the sections, and the radian of the upper arc structures and the radian of the bottom arc structures are matched with the diameter of the PCB hole.

Further, the front groove is elliptical.

The beneficial effects of the utility model are as follows:

(1) The holding force of the terminal is improved by designing a plurality of elastic portions; the plurality of elastic parts comprise a left side elastic arm, a right side elastic arm and a middle elastic structure, and the middle elastic structure, the left side elastic arm and the right side elastic arm form a W-shaped structure.

(2) The middle part of the terminal is provided with an opening structure of a front groove, a back groove and an elastic force adjusting hole, and the lower insertion force is realized under the condition of improving the holding force; ensuring both a high retention of the terminals and a small force upon insertion without damaging the PCB and the terminals themselves.

(3) The upper and lower four sides of the product are designed into circular arc structures, and scraping damage to the PCB holes is reduced when the product is inserted into the PCB holes

(4) The whole elasticity of the product can be adjusted by adjusting the arch height of the middle elastic structure 5, so that the product is suitable for different PCB hole sizes, different product materials and different products and PCB hole electroplated layers to meet different market demands

(5) Through adjusting elasticity adjustment hole quantity, shape, size and position, can adjust the whole elasticity of product to be applicable to different PCB hole sizes, different product materials and different product and PCB hole plating layer, satisfy different market demands.

Drawings

Fig. 1 is a schematic diagram of a front view structure of the present utility model.

Fig. 2 is a cross-sectional view A-A of fig. 1.

Fig. 3 is a sectional view of B-B of fig. 1.

Fig. 4 is a schematic rear view of the present utility model.

Fig. 5 is a schematic perspective view of the present utility model.

Fig. 6 is a rear perspective view of the present utility model.

Fig. 7 is a schematic view of the assembly of the present utility model.

Fig. 8 is a cross-sectional view of fig. 7.

Reference numerals illustrate: the terminal body 1, the front groove 2, the left side elastic arm 3, the bulge 4, the back groove 5, the elastic force adjusting hole 6, the right side elastic arm 7, the upper arc structure 8, the bottom arc structure 9, the PCB hole 10, the elastic arm holding force providing section A and the elastic arm guiding section B.

Detailed Description

The utility model will now be described in detail with reference to the accompanying drawings and examples:

as shown in fig. 1-6, a W-shaped high-stability contact force press-connection terminal comprises a terminal body 1, wherein an oval front groove 2 is arranged in the middle of the front of the terminal body 1, and a left side elastic arm 3 and a right side elastic arm 7 are formed on two lateral sides of the front groove 2; the left elastic arm 3 and the right elastic arm 7 are arc-shaped, and form an elastic arm holding force providing section a at the middle position, and form an elastic arm guiding section B at the front end position of the elastic arm holding force providing section a. The middle position of the bottom surface of the front groove 2 is longitudinally provided with an arc-shaped bulge 4, the reverse surface of the terminal body 1 is provided with a reverse groove 5 corresponding to the bulge 4, so that a middle elastic structure is formed, the middle elastic structure, the left side elastic arm 3 and the right side elastic arm 7 form a W-shaped structure, and the holding force of the terminal is improved by designing the W-shaped structure formed by a plurality of elastic parts.

As a preferred technical solution, at least one elastic force adjusting hole 6 is provided at a position of the protrusion 4 corresponding to the elastic arm holding force providing section, in this example, a square elastic force adjusting hole is provided, and by adjusting the number, shape, size and position of the elastic force adjusting holes, the overall elastic force of the product can be adjusted, so as to be suitable for different sizes of PCB board holes, different product materials and different products and PCB board hole plating layers, thereby meeting different market demands. The middle part of the terminal is provided with an opening structure of a front groove, a back groove and an elastic force adjusting hole, and the lower insertion force is realized under the condition of improving the holding force; ensuring both a high retention of the terminals and a small force upon insertion without damaging the PCB and the terminals themselves.

As a preferable technical scheme, the upper arc structures 8 are formed at the corners of the upper portions of the sections of the left side elastic arm 3 and the right side elastic arm 7, the bottom arc structures 9 are formed at the corners of the bottoms of the sections, and the radian of the upper arc structures 8 and the radian of the bottom arc structures 9 are matched with the diameter of the hole 10 of the PCB. The upper and lower four sides of the product are designed into arc structures, and scraping damage to the PCB holes is reduced when the product is inserted into the PCB holes.

Working principle:

1. as shown in fig. 7-8, when the crimp terminal is inserted into the PCB hole 10, the elastic arm guiding section B first enters the PCB hole 10, and then the elastic arm holding force providing section a enters the PCB hole 10. Meanwhile, the elastic adjusting hole 6 is formed in the proper position of the middle elastic structure, so that the elasticity of the middle elastic structure is improved, the insertion force of the product when the product is inserted into the PCB can be reduced, and the risk of damaging the PCB and the product is avoided;

2. the product is designed into an arc structure from top to bottom, and the upper arc structure 8 and the bottom arc structure 9 reduce scraping damage to the PCB holes when being inserted into the PCB holes;

3. the whole elasticity of the product can be adjusted by adjusting the arch height of the middle elastic structure, so that the product is suitable for different PCB hole sizes, different product materials and different products and PCB hole electroplated layers, and different market demands are met.

4. Through adjusting elasticity adjustment hole quantity, shape, size and position, can adjust the whole elasticity of product to be applicable to different PCB hole sizes, different product materials and different product and PCB hole plating layer, satisfy different market demands.

It should be understood that equivalents and modifications to the technical scheme and the inventive concept of the present utility model should fall within the scope of the claims appended hereto.

Claims

1. The utility model provides a W shape high stable contact force crimping terminal, includes terminal body (1), its characterized in that: a front groove (2) is formed in the front middle position of the terminal body (1), and a left side elastic arm (3) and a right side elastic arm (7) are formed on the front groove (2) along the two lateral sides; the middle position of the bottom surface of the front groove (2) is longitudinally provided with an arc-shaped bulge (4), the reverse side of the terminal body (1) is provided with a reverse groove (5) corresponding to the bulge (4), so that a middle elastic structure is formed, and the middle elastic structure, the left side elastic arm (3) and the right side elastic arm (7) form a W-shaped structure.

2. The W-shaped high-stability contact force press-fit terminal according to claim 1, wherein: the left side elastic arm (3) and the right side elastic arm (7) are arc-shaped, an elastic arm holding force providing section is formed at the middle position, and an elastic arm guiding section is formed at the front end position of the elastic arm holding force providing section.

3. The W-shaped high-stability contact force press-fit terminal according to claim 2, wherein: at least one elastic force adjusting hole (6) is formed in the position, corresponding to the elastic arm holding force providing section, of the protrusion (4), and the number, shape, size and position of the elastic force adjusting holes (6) are matched with the needed elastic force.

4. The W-shaped high-stability contact force press-fit terminal of claim 3, wherein: the upper arc structure (8) is formed at the corners of the upper parts of the sections of the left side elastic arm (3) and the right side elastic arm (7), the bottom arc structure (9) is formed at the corners of the bottoms of the sections, and the radian of the upper arc structure (8) and the radian of the bottom arc structure (9) are matched with the diameter of the PCB hole (10).

5. The W-shaped high-stability contact force press-fit terminal of claim 4, wherein: the front groove (2) is elliptical.