CN110927415A

CN110927415A - Claw-spring type high-frequency spring probe applied to 5G

Info

Publication number: CN110927415A
Application number: CN201911299747.0A
Authority: CN
Inventors: 钱晓晨; 骆兴顺; 刘志巍; 郭运帅
Original assignee: Suzhou Helin Micro-Nano Technology Co Ltd
Current assignee: Suzhou Helin Micro-Nano Technology Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-03-27

Abstract

The invention provides a jaw spring type high-frequency spring probe applied to 5G, which comprises a sleeve, wherein a hollow cavity is arranged in the sleeve, a spring is arranged in the cavity, a jaw spring is arranged at the upper end in the sleeve, the jaw spring comprises a cylindrical jaw spring cylinder and a spring sheet arranged at the lower end of the jaw spring cylinder, and the jaw spring cylinder and the sleeve are in interference fit; a plunger is embedded in the claw spring, and the elastic sheet is abutted to the plunger. The invention has the beneficial effects that: the probe structure has good guidance, small resistance fluctuation and can be used in a vibration environment or under the action of a fluctuating external force, the condition that the existing probe is broken in the moment is avoided, the application range is expanded, and the requirement on the reliability of equipment in the 5G era is well met.

Description

Claw-spring type high-frequency spring probe applied to 5G

Technical Field

The invention belongs to the technical field of semiconductor components and parts, and particularly relates to a jaw spring type high-frequency spring probe applied to 5G.

Background

With the development of the domestic semiconductor industry, the demand for domestic independent chip research and development is continuously increased, and chips of many electronic products are manufactured abroad. According to the intelligent blueprint manufacturing of China 2025, the localization of high-performance chips has been proposed as a national strategy. In the testing process of the high-reliability chip in production and manufacturing, a large number of miniature high-performance spring test probes are needed.

The conventional spring probe structure is shown in fig. 1, and generally includes a sleeve 1, a spring 2 is disposed in the sleeve 1, a ball 3 is disposed at an upper end of the spring 2, a plunger 4 is disposed in a top of the sleeve 1, when the plunger 4 is pressed downward from the outside, a force is transmitted from the ball 3 to the spring 2 to deform the spring, and when the external pressure is removed, the spring 2 automatically resets to force the plunger 4 to return to an original position.

However, due to the clearance fit between the sleeve 1 and the plunger 4, when the plunger moves downwards or upwards, the plunger can swing in any direction of 360 degrees. If the pressure applied from the outside is not linear (e.g. wave type, vibration type), it will cause instant disconnection of the product (the sleeve 1 cannot contact with the inner wall of the plunger 4), and the resistance value will be instantly increased, thereby resulting in poor communication.

That is, the probe in the prior art is only suitable for the working environment under static pressure or the use environment with relaxed requirement on the resistance bounce. The environment for applying the wave power cannot be met, so the use environment has certain limitation. Under the social demand of the increasing development of science and technology, a probe capable of preventing the probe from being instantly broken in a vibration environment is urgently needed so as to better meet the higher requirement of the 5G era on the reliability of equipment.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a jaw spring type high-frequency spring probe applied to 5G.

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

the claw-spring type high-frequency spring probe applied to 5G comprises a sleeve, wherein a hollow cavity is formed in the sleeve, a spring is arranged in the cavity, a claw spring is arranged at the upper end in the sleeve, the claw spring comprises a cylindrical claw-spring cylinder and a spring sheet arranged at the lower end of the claw-spring cylinder, and the claw-spring cylinder is in interference fit with the sleeve; a plunger is embedded in the claw spring, and the elastic sheet is abutted to the plunger.

Preferably, the top end of the plunger is arranged outside the sleeve, and the bottom end of the plunger is abutted to the spring.

Preferably, the plunger comprises a guide post, a tapered pressing part is connected to the bottom of the guide post, and the pressing part is arranged below the elastic sheet.

Preferably, the adjacent spring plates are arranged in a gap.

Preferably, the diameter of the bottom opening formed by enclosing the elastic sheets is equivalent to that of the guide post.

Preferably, the upper end of the guide post is provided with a columnar pressed end, and the top of the pressed end is arranged in a spherical manner.

Preferably, the diameter of the upper end of the pressing part is larger than that of the guide post, and the diameter of the lower end of the pressed end is larger than that of the guide post.

Preferably, the pressure end is in clearance fit with the pawl spring barrel.

Preferably, the bottom of the cavity is tapered.

The invention has the beneficial effects that: the probe structure has good guidance, small resistance fluctuation and can be used in a vibration environment or under the action of a fluctuating external force, the condition that the existing probe is broken in the moment is avoided, the application range is expanded, and the requirement on the reliability of equipment in the 5G era is well met.

Drawings

FIG. 1: the probe structure in the prior art is schematic.

FIG. 2: the invention has a structure schematic diagram.

FIG. 3: the claw spring of fig. 2 of the present invention is schematically shown.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the embodiments, and the present invention discloses a jaw spring type high frequency spring probe applied to 5G, which is shown in fig. 2-3, and includes a sleeve 1 having a hollow cavity therein, wherein the bottom of the cavity is tapered. Be provided with spring 2 in the cavity, be clearance fit between spring 2 and the sleeve 1, be provided with the space between spring 2 and the sleeve 1 promptly to make spring 2 can freely warp in sleeve 1.

The upper end in the sleeve 1 is provided with a pawl spring 3, and the pawl spring 3 comprises a cylindrical pawl spring cylinder 31 and a spring sheet 32 arranged at the lower end of the pawl spring cylinder 31. In order to firmly connect the pawl spring 3 with the sleeve 1, the pawl spring barrel 31 is in interference fit with the sleeve 1. The adjacent spring plates 32 are arranged in a gap, and the number of the spring plates can be limited according to requirements. In this embodiment, there are 6 elastic sheets, and a tapered cone is formed between the elastic sheets, that is, the bottom of the elastic sheet 32 and the inner cavity of the sleeve 1 keep a gap without contacting. In order to further ensure the high stability of the position of the pawl spring, a limiting table 11 is arranged in the cavity of the sleeve 1, the limiting table 11 divides the cavity into two parts, the diameter of the upper part of the limiting table is larger than that of the lower part of the limiting table, and the pawl spring cylinder 31 is in interference fit with the upper part of the cavity.

The embedded plunger that is equipped with of claw spring, the top of plunger sets up outside the cover barrel, the bottom of plunger with 2 butts of spring. Specifically, the plunger comprises a guide post 4, a tapered pressing part 43 is connected to the bottom of the guide post 4, the diameter of the upper end of the pressing part 43 is larger than that of the guide post 4, and the pressing part 43 is arranged below the elastic sheet 32.

The upper end of the guide post 4 is provided with a columnar pressed end 41, and the top of the pressed end 41 is arranged in a spherical shape. The lower end 42 of the pressure receiving end 41 has a diameter larger than that of the guide post 4. The height of the pressure receiving end 41 exposed out of the sleeve 1 is smaller than the height of the pawl spring barrel 31 to ensure the stroke of the pressure receiving end 41) the pressure receiving end 41 is in clearance fit with the pawl spring barrel 31. Meanwhile, in order to ensure the close contact between the plunger and the spring 2, the diameter of the bottom opening formed by enclosing the elastic pieces 3 is equal to that of the guide post 4, so that the pressing part 43 is kept arranged below the elastic pieces 3.

Through the arrangement, the sleeve and the inner wall of the plunger can always keep indirect contact no matter in a vibration environment or under the action of fluctuating external force, and the condition that the existing probe is short-circuited instantaneously is avoided.

The following brief description of the spring probe assembly process of the present invention:

the spring 2 is firstly arranged in the cavity of the sleeve 1, then the pawl spring is arranged in the cavity, and finally the plunger is arranged in the pawl spring. When the pressed end 41 is pressed, the plunger moves down compressing the spring, and when the pressure is removed, the spring returns, forcing the plunger back to the initial state.

The upper and lower directional limiting terms in the present invention are only referred to by the accompanying drawings in the present invention, and are not meant to be absolute limiting.

There are, of course, many other specific embodiments of the invention and these are not to be considered as limiting. All technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the claimed invention.

Claims

1. Be applied to 5G's claw spring formula high frequency spring probe, including an inside sleeve that is provided with the cavity, be provided with spring, its characterized in that in the cavity: a pawl spring is arranged at the upper end in the sleeve and comprises a cylindrical pawl spring barrel and a spring sheet arranged at the lower end of the pawl spring barrel, and the pawl spring barrel is in interference fit with the sleeve; a plunger is embedded in the claw spring, and the elastic sheet is abutted to the plunger.

2. The jaw-spring type high-frequency spring probe applied to 5G as claimed in claim 1, wherein: the top of plunger sets up outside the sleeve, the bottom of plunger with the spring butt.

3. The jaw-spring type high-frequency spring probe applied to 5G as claimed in claim 2, wherein: the plunger comprises a guide post, the bottom of the guide post is connected with a conical pressing part, and the pressing part is arranged below the elastic sheet.

4. The jaw-spring type high-frequency spring probe applied to 5G as claimed in claim 1, wherein: the gap between adjacent elastic sheets is arranged.

5. A jaw spring type high frequency spring probe applied to 5G as claimed in claim 3, wherein: the diameter of a bottom opening formed by enclosing the elastic sheets is equal to that of the guide post.

6. A jaw spring type high frequency spring probe applied to 5G as claimed in claim 3, wherein: the upper end of guide post is provided with the column pressurized end, the top of pressurized end is the sphere setting.

7. The jaw spring type high frequency spring probe for 5G application according to claim 6, wherein: the diameter of the upper end of the pressing part is larger than that of the guide post, and the diameter of the lower end of the pressing end is larger than that of the guide post.

8. The jaw spring type high frequency spring probe for 5G application according to claim 6, wherein: the compression end is in clearance fit with the pawl spring barrel.

9. The jaw-spring type high-frequency spring probe applied to 5G as claimed in claim 1, wherein: the bottom of the cavity is conical.