Probe with stable contact performance

Abstract

The utility model discloses a probe with stable contact performance, and relates to the technical field of ICT probes, the probe with stable contact performance comprises a probe needle tube, one side of the probe needle tube is provided with a probe head, the probe needle tube is internally provided with a moving groove, and the probe head moves along the moving groove. A compression spring is arranged in the moving groove, a ball is arranged between the compression spring and the probe head, the ball rolls along the moving groove, the probe head comprises a connecting frame and a probe head, and a limiting frame is arranged at the other end of the connecting frame; according to the scheme, the problems that when an existing probe faces a complex test environment and diversified electronic elements, some limitations exist, for test points with uneven surfaces or deviated positions, a traditional probe cannot achieve good contact, the test result is inaccurate, in addition, the traditional probe is prone to being abraded after being used for many times, and the test efficiency is poor are solved. The service life and the performance stability are influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ICT probe technical field, concretely is a kind of probe of stable contact performance. BACKGROUND

[0002] With the rapid development of electronic technology, the test requirement of electronic component is also higher and higher, ICT probe as the key tool in electronic test, its performance directly influences the accuracy and efficiency of test;

[0003] For example, the China authorized patent (a new type of assembled ICT test probe) with the announcement number CN216696422U): including needle cover;Connecting seat, the connecting seat is connected to the outer wall of the needle cover;Needle head, the needle head is connected to the inner wall of the needle cover and extends through the connecting seat to the outside end of the needle cover;Mounting mechanism, the mounting mechanism is set between the connecting seat and needle head.The utility model discloses a mounting mechanism is set, the connecting seat is sleeved on the outer wall of the needle cover, the needle head is passed through the through hole and enters the inner wall of the needle cover, rotating connecting seat, the needle cover and connecting seat are fixed by screw thread, during the process of fixing, needle cover and push block contact drive push block to displace, push block displacement drives the displacement of the clamping block into the movable slot, so as to install needle head, when dismounting, rotating connecting seat, connecting seat is removed, needle head is displaced out of the through hole and disassembled, it is convenient to install and disassemble needle head quickly.

[0004] However, the existing probe has some limitations when facing complex test environment and diversified electronic components, the traditional probe cannot achieve good contact for uneven surface or position deviation test points, leading to inaccurate test results, in addition, the traditional probe is prone to wear after multiple uses, affecting its service life and performance stability;Therefore, it does not meet the existing demand, for this, we propose a kind of probe of stable contact performance. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of probe of stable contact performance to solve the problems that the existing probe has some limitations when facing complex test environment and diversified electronic components in the above background art, the traditional probe cannot achieve good contact for uneven surface or position deviation test points, leading to inaccurate test results, in addition, the traditional probe is prone to wear after multiple uses, affecting its service life and performance stability.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a probe with stable contact performance, comprising: a probe needle tube, one side of the probe needle tube is provided with a probe needle head, the inside of the probe needle tube is provided with a moving groove, and the probe needle head moves along the moving groove, the inside of the moving groove is provided with a compression spring, a ball is arranged between the compression spring and the probe needle head, and the ball rolls along the moving groove.

[0007] Preferably, the probe needle head comprises a connecting frame and a probe head, and the probe head is located at one end of the connecting frame, and the other end of the connecting frame is provided with a limiting frame.

[0008] Preferably, the edge of the connecting portion of the limiting frame and the connecting frame is a circular arc edge, and the other end surface of the limiting frame is an inclined surface.

[0009] Preferably, the ball is made of tungsten steel material, and the probe needle tube and the probe needle head are made of copper alloy material and are gold plated on the outer surface.

[0010] Preferably, one end of the probe needle tube is provided with a circular arc end head, and the circular arc end head and the probe needle tube are an integral structure, and the other end outer wall of the circular arc end head is provided with a pressing groove.

[0011] Preferably, the other end surface of the probe needle tube is provided with an embedded groove, and the embedded groove is a three-side opening form with two sides and an upper surface, and the inside of the embedded groove is clamped into a limiting seat.

[0012] Preferably, the upper surface of the limiting seat is provided with a protection groove, a fixing screw is inserted into the protection groove, and one end of the fixing screw is screwed with the probe needle tube through the limiting seat.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model discloses a ball is arranged in the probe needle tube, and the ball is located between the probe needle head and compression spring, and the clearance between the ball and the inner wall of the probe needle tube is realized, and the ball is deviated in a certain angle range, when the probe needle head is subjected to external force, the compression spring is compressed, and the ball is deviated according to the direction and size of external force, thereby adapting to different test point positions and surface shapes, whether it is plane, curved surface or irregular surface, the probe can realize good contact through the adjustment of the ball, greatly improve the universality of test, realize the self -adaptation contact between probe and test point, thereby ensuring that the probe and test point have good contact pressure and stability, the rolling of the ball in the probe needle tube can effectively disperse the contact pressure, and the contact between the probe and test point is more uniform and stable, which not only reduces the contact resistance, but also improves the quality of signal transmission, thereby improving the precision of test, the rolling of the ball shares the friction between the probe and test point, significantly reduces the wear degree of the probe needle head and test point, which prolongs the service life of the probe, reduces the frequency of replacing the probe, reduces the test cost, solves the problem that the existing probe has some limitations when facing complex test environment and diversified electronic components, the traditional probe cannot realize good contact for the test point with uneven surface or position deviation, leading to inaccurate test result, in addition, the traditional probe is prone to wear after multiple uses, affecting the service life and performance stability.

[0015] 2. The utility model discloses an embedded groove is set up on the surface of one end of the probe needle tube, and the limiting seat is clamped into the embedded groove, and one end of the fixed screw is screwed with the probe needle tube through the limiting seat, realizes the fixed connection of the limiting seat and the probe needle tube, avoids the ball from falling through the limiting seat, and plays the secondary limiting effect and prevents the ball from falling further. ACCURACY

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the whole structure schematic diagram of the utility model after removing the probe needle tube;

[0018] Figure 3 It is the left side view structure schematic diagram of the utility model's probe needle tube;

[0019] Figure 4 It is the rear view structure schematic diagram of the utility model's probe needle tube;

[0020] In the drawing: 1, probe needle tube; 2, probe needle head; 3, connecting frame; 4, probe; 5, limiting frame; 6, pressing groove; 7, compression spring; 8, ball; 9, arc edge; 10, inclined surface; 11, moving groove; 12, embedded groove; 13, limiting seat; 14, protection groove; 15, fixed screw; 16, arc end. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Please refer to Figures 1-4 The utility model provides an embodiment: a probe with stable contact performance, comprising: probe needle tube 1, one side of probe needle tube 1 is provided with probe needle head 2, the inside of probe needle tube 1 is provided with moving groove 11, and probe needle head 2 moves along moving groove 11, the inside of moving groove 11 is provided with compression spring 7, and between compression spring 7 and probe needle head 2 is provided with ball 8, and ball 8 rolls along moving groove 11, probe needle head 2 includes connecting frame 3 and probe 4, and probe 4 is located at one end of connecting frame 3, the other end of connecting frame 3 is provided with limit frame 5, one end of probe needle tube 1 is provided with arc end 16, and arc end 16 is integral structure with probe needle tube 1, the outer wall of the other end of arc end 16 is provided with compression groove 6, ball 8 adopts tungsten steel material, and probe needle tube 1 and probe needle head 2 all adopt copper alloy material and are plated with gold on the outer surface.

[0023] Ball 8 and the inner wall of probe needle tube 1 have a gap, realize the partial ball of ball 8 in a certain angle range, when probe needle head 2 is subjected to external force, compression spring 7 is compressed, ball 8 is partial ball according to the direction and size of external force, thereby adapting to different test point positions and surface shapes, whether it is plane, curved surface or irregular surface, probe can realize good contact through the adjustment of ball 8, greatly improve the versatility of test, realize the self -adaptation contact between probe and test point, thereby ensuring that probe and test point have good contact pressure and stability.

[0024] Please refer to Figure 1 、 2 , 3, the edge of the connecting place of limit frame 5 and connecting frame 3 is arc edge 9, the other end surface of limit frame 5 is inclined surface 10, relies on arc edge 9 and compression groove 6 inner wall contact, arc surface is relative to sharp face, is not easy to damage, improves the service life.

[0025] Please refer to Figure 3 、 4The other end surface of the probe needle tube 1 is provided with an embedded groove 12, and the embedded groove 12 is in the form of three open surfaces of two surfaces and an upper surface. The embedded groove 12 is clamped into the limiting seat 13. The upper surface of the limiting seat 13 is provided with a protection groove 14. The protection groove 14 is inserted into the fixed screw 15. One end of the fixed screw 15 is screwed with the probe needle tube 1 through the limiting seat 13. The limiting seat 13 is clamped into the embedded groove 12. One end of the fixed screw 15 is screwed with the probe needle tube 1 through the limiting seat 13. The limiting seat 13 is fixed with the probe needle tube 1. The ball 8 is prevented from falling by the limiting seat 13. The secondary limiting effect further prevents the ball 8 from falling.

[0026] Working principle: when in use, the limiting frame 5 is inserted into the moving groove 11 of the probe needle tube 1. Then, one end of the probe needle tube 1 is pressed to form a pressing groove 6. Thus, the size of one end of the moving groove 11 is reduced. Since there is a size difference between the limiting frame 5 and the connecting frame 3, the limiting frame 5 is prevented from falling from the moving groove 11. The stable connection effect is achieved. The probe needle tube 1 and the probe needle head 2 are prevented from falling during use. The ball 8 is also prevented from falling. The edge of the connecting part of the limiting frame 5 and the connecting frame 3 is a circular arc edge 9. The circular arc edge 9 is in contact with the inner wall of the pressing groove 6. The circular arc surface is not easy to damage compared with the sharp surface. The service life is improved. The limiting seat 13 is clamped into the embedded groove 12. One end of the fixed screw 15 is screwed with the probe needle tube 1 through the limiting seat 13. The limiting seat 13 is fixed with the probe needle tube 1. The ball 8 is prevented from falling by the limiting seat 13. The secondary limiting effect further prevents the ball 8 from falling. There is a gap between the ball 8 and the inner wall of the probe needle tube 1. The ball 8 is deviated within a certain angle range. When the probe needle head 2 is subjected to an external force, the compression spring 7 is compressed. The ball 8 is deviated according to the direction and size of the external force. Thus, different test point positions and surface shapes are adapted. Whether it is a plane, a curved surface or an irregular surface, the probe can realize good contact through the adjustment of the ball 8. The universality of the test is greatly improved. The self-adaptive contact between the probe and the test point is realized. Thus, good contact pressure and stability between the probe and the test point are ensured. The rolling of the ball 8 in the probe needle tube 1 can effectively disperse the contact pressure. The contact between the probe and the test point is more uniform and stable. This not only reduces the contact resistance, but also improves the quality of signal transmission. Thus, the test precision is improved. The rolling of the ball 8 shares the friction between the probe and the test point. The wear degree of the probe needle head 2 and the test point is significantly reduced. This prolongs the service life of the probe, reduces the frequency of replacing the probe, and reduces the test cost. The ball 8 in the probe needle tube 1 is easy to replace and maintain. Once it is worn or damaged, it can be easily replaced. The performance of the probe is always in good condition.

[0027] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A probe with stable contact performance, comprising a probe needle tube (1), characterized in that: A probe needle head (2) is provided on one side of the probe needle tube (1), a movable groove (11) is provided inside the probe needle tube (1), and the probe needle head (2) moves along the movable groove (11), a compression spring (7) is provided inside the movable groove (11), a ball (8) is provided between the compression spring (7) and the probe needle head (2), and the ball (8) rolls along the movable groove (11).

2. The probe with stable contact performance according to claim 1, characterized in that: The probe needle (2) comprises a connecting frame (3) and a probe (4), wherein the probe (4) is located at one end of the connecting frame (3), and a limiting frame (5) is provided at the other end of the connecting frame (3).

3. The probe with stable contact performance according to claim 2, characterized in that: The edge of the connection between the limiting frame (5) and the connecting frame (3) is an arc edge (9), and the other end surface of the limiting frame (5) is an inclined surface (10).

4. The probe with stable contact performance according to claim 1, characterized in that: The ball (8) is made of tungsten steel, and the probe needle tube (1) and the probe needle head (2) are both made of copper alloy, with gold plating on the outer surface.

5. The probe with stable contact performance according to claim 1, characterized in that: One end of the probe needle tube (1) is provided with a circular arc end head (16), and the circular arc end head (16) and the probe needle tube (1) are an integral structure, and the outer wall of the other end of the circular arc end head (16) is provided with a pressing groove (6).

6. The probe with stable contact performance according to claim 1, characterized in that: The other end surface of the probe needle tube (1) is provided with an embedded groove (12), and the embedded groove (12) is open on three sides, including two sides and the upper surface, and the interior of the embedded groove (12) is snapped into a limiting seat (13).

7. The probe with stable contact performance according to claim 6, characterized in that: A protective groove (14) is provided on the upper surface of the limiting seat (13), a fixing screw (15) is inserted into the interior of the protecting groove (14), and one end of the fixing screw (15) passes through the limiting seat (13) and is threadedly connected to the probe needle tube (1).

Images