阅读说明：本技术 一种探针结构 (Probe structure ) 是由 冯一鸣 于 2019-04-26 设计创作，主要内容包括：本发明提供一种探针结构,包括：一针头,针头的一端为平面,针头的另一端为球形面；一针轴,针轴的上部为圆柱体,针头的另一端容设于针轴的上部的顶端内,针轴的下部为至少三面体,并且下部的底端具有一斜面；一导电斜块,导电斜块的一端具有一斜面,导电斜块的外部为至少三面体,下部的底端的斜面与导电斜块的一端的斜面贴合接触,导电斜块的另一端具有凹槽；一绝缘片,容设于导电斜块的另一端的凹槽内；一弹性件,弹性件的一端连接至绝缘片；以及一针管,具有中空空间,其中,针管的内部周壁具有至少三平面,针轴的下部、导电斜块、绝缘片及弹性件容设于针管的中空空间内。(The present invention provides a probe structure, comprising: one end of the needle head is a plane, and the other end of the needle head is a spherical surface; the upper part of the needle shaft is a cylinder, the other end of the needle head is contained in the top end of the upper part of the needle shaft, the lower part of the needle shaft is at least a trihedron, and the bottom end of the lower part is provided with an inclined plane; the conductive inclined block is provided with an inclined plane at one end, the outer part of the conductive inclined block is at least a trihedron, the inclined plane at the bottom end of the lower part is in contact with the inclined plane at one end of the conductive inclined block in a fitting manner, and the other end of the conductive inclined block is provided with a groove; the insulating sheet is accommodated in the groove at the other end of the conductive inclined block; one end of the elastic piece is connected to the insulating piece; and a needle tube with a hollow space, wherein the inner peripheral wall of the needle tube is provided with at least three planes, and the lower part of the needle shaft, the conductive inclined block, the insulating sheet and the elastic piece are accommodated in the hollow space of the needle tube.)

1. A probe structure, comprising:

one end of the needle head is a plane, and the other end of the needle head is a spherical surface;

the upper part of the needle shaft is a cylinder, the other end of the needle head is accommodated in the top end of the upper part of the needle shaft, the lower part of the needle shaft is at least a trihedron, and the bottom end of the lower part is provided with an inclined plane;

the conductive inclined block is provided with an inclined plane at one end, the inclined plane at the bottom end of the lower part is in contact with the inclined plane at one end of the conductive inclined block in a fitting manner, and the other end of the conductive inclined block is provided with a groove;

the insulating sheet is accommodated in the groove at the other end of the conductive inclined block;

one end of the elastic piece is connected to the insulation sheet; and

the needle tube is provided with a hollow space, wherein the peripheral wall of the hollow space of the needle tube is provided with at least three planes, and the lower part of the needle shaft, the conductive inclined block, the insulating sheet and the elastic piece are accommodated in the hollow space of the needle tube.

2. The probe structure of claim 1, wherein the needle further comprises an extended cylinder, the extended cylinder being integrally formed with the needle.

3. The probe structure of claim 2, wherein the elongated cylinder is in electrical contact with the exterior.

4. The probe structure of claim 1, wherein the conductive ramp is an at least trihedral shape.

5. The probe structure of claim 1, wherein the resilient member is a spring.

6. The probe structure of claim 1, wherein the flat surface of the tip end is in electrical contact with the outside.

Technical Field

The present invention relates to a probe, and more particularly, to a probe structure.

Background

The probe structure commonly used in the industry is shown in fig. 1 and 2. Fig. 1 is a schematic perspective view showing a structure of a conventional probe, and fig. 2 is a schematic internal assembly view of the conventional probe.

As shown in FIG. 2, when the conventional probe is used, the bottom of the needle shaft 1 of the conventional probe is disposed as the inclined plane 2, the spring 3 pushes the ball 4, and the ball 4 pushes the needle shaft 1 to one side inside the needle tube 5 because the bottom of the needle shaft 1 is disposed as the inclined plane 2, so that the needle shaft 1 contacts with the sidewall of the needle tube 5, thereby forming a conductive path. However, since the needle tube 5 and the needle shaft 1 are both cylindrical, the contact area between the needle shaft 1 and the sidewall of the needle tube 5 is small, i.e., the line contact 6 is present.

Further, FIG. 3 shows a cross-sectional view A-A of FIG. 2. As shown in fig. 3, the conductive paths are all tangent line contacts 6 with circular areas, that is, the current flows only in the area of one line, so the limited contact area causes the maximum current conduction to be limited, and when the probe head is contacted with a large current, the probe is very easy to generate heat, so there is a safety concern.

In view of the above, it is one of the important issues to provide a probe structure capable of effectively increasing the contact area between the needle shaft and the needle tube, so as to effectively increase the maximum current conduction amount and make the use of the probe safer.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a probe structure, which can make a probe head completely attached to a conductive contact surface, and increase the contact area for current conduction, thereby achieving the effect of preventing the probe from being burned out.

To achieve the above object, the present invention provides a probe structure, including: one end of the needle head is a plane, and the other end of the needle head is a spherical surface; the upper part of the needle shaft is a cylinder, the other end of the needle head is accommodated in the top end of the upper part of the needle shaft, the lower part of the needle shaft is at least a trihedron, and the bottom end of the lower part is provided with an inclined plane; the conductive inclined block is provided with an inclined plane at one end and at least a trihedron outside the conductive inclined block, the inclined plane at the bottom end of the lower part is in contact with the inclined plane at one end of the conductive inclined block in a fitting manner, and the other end of the conductive inclined block is provided with a groove; the insulating sheet is accommodated in the groove at the other end of the conductive inclined block; one end of the elastic piece is connected to the insulation sheet; and a needle tube having a hollow space, wherein the inner peripheral wall of the needle tube has at least three planes, and the lower part of the needle shaft, the conductive inclined block, the insulating sheet and the elastic member are accommodated in the hollow space of the needle tube.

Preferably, the syringe further comprises an extended cylindrical body integrally formed with the syringe.

Further, preferably, the extended pillar is electrically contacted with the outside.

Preferably, the conductive sloping block is at least a trihedron.

Preferably, the elastic member is a spring.

Preferably, the flat surface of one end of the needle is in electrical contact with the outside.

Drawings

FIG. 1 shows a perspective view of a conventional probe;

FIG. 2 shows a schematic view of an internal assembly of a conventional probe;

FIG. 3 shows a cross-sectional view A-A of FIG. 2;

FIG. 4 is a perspective view of a probe structure according to a preferred embodiment of the present invention;

FIG. 5 is a perspective exploded view of the probe structure according to the preferred embodiment of the present invention;

FIG. 6 is a schematic view of the probe structure according to the preferred embodiment of the invention; and

FIG. 7 is a cross-sectional view B-B illustrating the probe structure shown in FIG. 6 according to a preferred embodiment of the present invention.

Description of the reference numerals

1 needle shaft

2 inclined plane

3 spring

4 sphere

5 needle tube

6 line contact

10 needle

15 degree angle

20 needle shaft

25 inclined plane

30 conductive sloping block

301 groove

35 inclined plane

40 insulating sheet

50 elastic member

60 needle tube

601 hollow space

602 extended cylinder

70 in surface contact.

Detailed Description

The following description of the embodiments of the present invention is provided by way of specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification and various changes in form and detail are capable of being made without departing from the spirit and scope of the invention.

Fig. 4 is a perspective view of a probe structure according to a preferred embodiment of the present invention, and fig. 5 is an exploded perspective view of the probe structure. As shown in FIG. 5, the probe structure of the present invention includes a needle 10, a needle shaft 20, a conductive ramp 30, an insulating plate 40, an elastic member 50 and a needle tube 60.

One end of the needle 10 is a flat surface, but may be in other shapes, but the invention is not limited thereto, and the other end of the needle 10 is a spherical surface. Therefore, the angle 15 of the needle can be adjusted by the spherical end of the needle 10, so that the flat end of the needle 10 can completely fit with the conducting contact surface.

According to the preferred embodiment of the present invention, as shown in fig. 5, the upper portion of the needle shaft 20 is a cylinder, the other end of the needle tip 10 can be accommodated in the top end of the upper portion of the needle shaft 20, and the lower portion of the needle shaft 20 is an at least trihedral body (preferably a tetrahedron), and the bottom end of the lower portion has a slant 25.

According to the preferred embodiment of the present invention, one end of the conductive sloping block 30 also has an inclined surface and the exterior of the conductive sloping block 30 is at least trihedral. The inclined plane 25 at the bottom end of the lower part of the needle shaft 20 is in contact with the inclined plane 35 at one end of the conductive inclined block 30, which can increase the current flowing to the opposite surface of the needle tube 60, effectively increase the conductive area, and the other end of the conductive inclined block 30 has a groove 301

According to the preferred embodiment of the present invention, the insulation sheet 40 can be accommodated in the groove 301 at the other end of the conductive sloping block 30. Further, one end of the elastic member 50 may be connected to the insulation sheet 40.

According to the preferred embodiment of the present invention, the needle tube 60 has a hollow space 601, wherein the peripheral wall of the hollow space 601 of the needle tube 60 has at least three planes (preferably four planes), and the lower portion of the needle shaft 20, the conductive bevel block 30, the insulation sheet 40 and the elastic member 50 are all accommodated in the hollow space 601 of the needle tube 60.

It should be noted that, as shown in FIG. 5, the syringe 60 of the present invention may further include an extended cylindrical body 602, wherein the extended cylindrical body 602 is integrally formed with the syringe 60.

According to the preferred embodiment of the present invention, as shown in FIG. 5, the extended cylindrical body 602 of the needle tube 60 and one end of the flat surface of the needle 10 can be directly electrically contacted with the outside.

Incidentally, as shown in fig. 5, the conductive sloping block 30 is also at least a trihedron (preferably a tetrahedron), and the elastic member 50 may be a spring.

FIG. 6 shows a schematic combination of probe structures according to the present invention; and FIG. 7 shows a cross-sectional view B-B of the probe structure shown in FIG. 6. As shown in fig. 7, since the lower portion of the needle shaft 20 is at least a trihedron (preferably a tetrahedron) and the conductive inclined block 30 is also at least a trihedron (preferably a tetrahedron), the lower portion of the needle shaft 20 and the conductive inclined block 30 can be in surface contact with the peripheral wall area of the hollow space 601 of the needle tube 60 (i.e., in surface contact 70; i.e., in surface contact with at least the trihedron outside the conductive inclined block 30), thereby effectively increasing the contact area, achieving the maximum current conduction amount, and effectively preventing damage due to overheating of the probe.

In summary, the probe structure provided by the present invention has the following advantages that since the probe structure of the present invention is composed of a needle head (having a planar end and a spherical end, respectively), a needle shaft, a conductive slanted block (which may be a tetrahedron), an insulating sheet, an elastic member, and a needle tube (having a four-plane hollow space), the probe structure of the present invention can achieve the effect of maximum current conduction when a user uses the probe to perform a large current contact, and can effectively prevent damage caused by overheating of the probe.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.