CN213210240U

CN213210240U - Coaxial high-current probe

Info

Publication number: CN213210240U
Application number: CN202022220977.8U
Authority: CN
Inventors: 申啸; 付盼红; 李红叶
Original assignee: Weinan Hi Tech Zone Wood King Technology Co Ltd
Current assignee: Weinan Muwang Intelligent Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-14
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a coaxial heavy current probe, which comprises a probe, a first insulating sleeve and an inner tube, the mount pad, the spring, the probe, first insulating cover has been cup jointed to the probe bottom, the inner tube has been cup jointed to first insulating cover outside, the probe is located the inner tube, inner tube outside middle part fixedly connected with mount pad, the winding has the spring on the inner tube body, spring one end is fixed on the mount pad, spring other end fixedly connected with probe, mount pad fixed surface is connected with first buffering post, first buffering post fixed surface is connected with the elastic component, elastic component other end fixedly connected with second buffering post, second buffering post is fixed in the probe bottom, the inside through-hole that is equipped with of probe, the inside fixedly connected with second insulating cover of through-hole, the probe top extends and is located the second insulating cover of probe, the utility model discloses can effectively improve the life of probe, improve insulating effect.

Description

Coaxial high-current probe

Technical Field

The utility model relates to a heavy current detects instrument technical field, specifically is a heavy current probe.

Background

The probe is an important part in the electronic product connecting piece, the existing probe generally adopts a structure for accommodating and combining a spiral spring, in the actual using process, the current is easily concentrated on a tiny area belonging to the spiral spring of the probe and a contact part between the spiral spring and a needle tube, in terms of the existing probe technology, if the current is small, even if the current flows through the tiny path, the service life of the probe is not influenced, however, when the probe needs to flow a large capacity of current, the current is concentrated to pass through the spiral spring and the tiny contact part, the spiral spring and the tiny contact part are easy to deteriorate and cause material melting or thermal property change, and further the service life of the probe is influenced, in addition, fewer insulating parts are arranged among the existing probe parts, the grounding point and the signal point of the probe part are not completely isolated, and the probe is easy to be interfered by the outside during detection, affecting the accuracy of the detection result.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at in solving current heavy current probe and appear spring degradation easily and damage, the poor technical problem of insulating effect to a coaxial heavy current probe is provided.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a coaxial heavy current probe, which comprises a probe, first insulation cover, the inner tube, the mount pad, a spring, the probe, first insulation cover has been cup jointed to the probe bottom, the inner tube has been cup jointed to first insulation cover outside, be hollow cavity in the inner tube, the probe is located the inner tube, inner tube outside middle part fixedly connected with mount pad, the winding has the spring on the inner tube body, spring one end is fixed on the mount pad, spring other end fixedly connected with probe, mount pad fixed surface is connected with first buffering post, first buffering post fixed surface is connected with elastic component, elastic component other end fixedly connected with second buffering post, second buffering post is fixed in the probe bottom, the inside through-hole that is equipped with of probe, the inside fixedly connected with second insulation cover of through-hole, the probe top extends and is arranged in the second insulation cover of probe.

Preferably, a circular through hole is formed in the middle of the mounting seat, and the inner pipe penetrates through the through hole.

Preferably, the elastic member is an elastic rope or a silica gel rope, and the maximum stretching distance of the elastic member is the distance from the bottom of the probe to the surface of the mounting seat.

Preferably, the surface of the probe is provided with a conical needle point, and the diameter of the through hole in the probe is larger than that of the inner tube.

Preferably, the first buffer column and the second buffer column are made of insulating elastic materials.

Preferably, the surface of the spring and the elastic member is coated with an insulating layer.

Has the advantages that:

1. the utility model discloses in, first buffering post, second buffering post select for use insulating elasticity material, and probe and inner tube can effectively be kept apart to first buffering post, second buffering post, improve insulating effect.

2. The utility model discloses in, the spring receives the compression, and the probe downstream drives the elastic component simultaneously and warp, when treating probe top and probe parallel and level, the test begins, and spring, elastic component stop the compression this moment, and the examination is waited to await measuring and is accomplished the back, loosens the probe, spring, elastic component reconversion, accomplishes the operation. The dual setting of spring, elastic component can effectively improve the life of probe.

Drawings

Fig. 1 is an overall perspective view of the present invention.

Fig. 2 is a schematic view of the structure of the mounting seat of the present invention.

In FIGS. 1-2: 1-probe, 2-first insulating sleeve, 3-inner tube, 4-mounting seat, 41-first buffer column, 42-elastic piece, 43-spring, 5-probe, 51-second buffer column and 52-second insulating sleeve.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to fig. 1-2 of the embodiment of the present invention.

The utility model provides a technical scheme:

a coaxial large-current probe comprises a probe 1, a first insulating sleeve 2, an inner tube 3, a mounting seat 4, a first buffer column 41, an elastic part 42, a spring 43, a probe 5, a second buffer column 51 and a second insulating sleeve 52, wherein the first insulating sleeve 2 is sleeved at the bottom of the probe 1, the inner tube 3 is sleeved outside the first insulating sleeve 2, a hollow cavity is arranged in the inner tube 3, the probe 1 is positioned in the inner tube 3, the mounting seat 4 is fixedly connected to the middle part of the outer side of the inner tube 3, the spring 43 is wound on the tube body of the inner tube 3, one end of the spring 43 is fixed on the mounting seat 4, the other end of the spring 43 is fixedly connected with the probe 5, a circular through hole is arranged in the middle of the mounting seat 4 and used for penetrating through the inner tube 3, the first buffer column 41 is fixedly connected to the surface of the mounting seat 4, the elastic part 42 is fixedly connected to the surface of the first buffer column 41, the other end, a through hole is formed in the probe 5, a second insulating sleeve 52 is fixedly connected to the inside of the through hole, and the top of the probe 1 extends and is located in the second insulating sleeve 52 of the probe 5.

In this embodiment, the elastic member 42 is an elastic cord or a silica gel cord, and the maximum stretching distance of the elastic member 42 is the distance from the bottom of the probe 5 to the surface of the mounting base 4.

In this embodiment, the probe 5 is provided with a conical needle point on the surface.

In this embodiment, first bumping post 41, second bumping post 51 select for use insulating elastic material, and probe 1 and inner tube 3 can effectively be kept apart to first bumping post 41, second bumping post 51, improve insulating effect.

In this embodiment, the diameter of the through hole inside the probe 5 is larger than the diameter of the inner tube 3.

In this embodiment, the surfaces of the spring 43 and the elastic member 42 are coated with an insulating layer.

During testing, only one side of the probe 5 with the conical needle point is aligned to and contacted with a tested object, the spring 43 is compressed at the moment, the probe 5 moves downwards and drives the elastic piece 42 to deform, when the top of the probe 1 is flush with the probe 5, the testing starts, the spring 43 and the elastic piece 42 stop compressing at the moment, after the testing is finished, the probe 5 is loosened, and the spring 43 and the elastic piece 42 recover to finish the operation. The spring 43 and the elastic piece 42 are arranged in a double mode, so that the service life of the probe 5 can be effectively prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coaxial heavy current probe, includes probe (1), first insulating cover (2), inner tube (3), mount pad (4), spring (43), probe (5), its characterized in that: the probe comprises a probe (1), a first insulating sleeve (2) is sleeved at the bottom of the probe (1), an inner pipe (3) is sleeved outside the first insulating sleeve (2), a hollow cavity is formed in the inner pipe (3), the probe (1) is located in the inner pipe (3), a mounting seat (4) is fixedly connected to the middle of the outer side of the inner pipe (3), a spring (43) is wound on a pipe body of the inner pipe (3), one end of the spring (43) is fixed on the mounting seat (4), the other end of the spring (43) is fixedly connected with a probe (5), a first buffer column (41) is fixedly connected to the surface of the mounting seat (4), an elastic member column (42) is fixedly connected to the surface of the first buffer column (41), a second buffer column (51) is fixedly connected to the other end of the elastic member column (42), the second buffer column (51) is fixed to the bottom of the probe (5), a through hole is formed, the top of the probe (1) extends and is positioned in a second insulating sleeve (52) of the probe head (5).

2. A coaxial high current probe according to claim 1, wherein: the elastic piece column (42) is an elastic rope or a silica gel rope, and the maximum stretching distance of the elastic piece column (42) is the distance from the bottom of the probe (5) to the surface of the mounting seat (4).

3. A coaxial high current probe according to claim 1, wherein: the surface of the probe (5) is provided with a conical needle point.

4. A coaxial high current probe according to claim 1, wherein: the first buffer column (41) and the second buffer column (51) are made of insulating elastic materials.

5. A coaxial high current probe according to claim 1, wherein: the diameter of the through hole in the probe (5) is larger than that of the inner tube (3).

6. A coaxial high current probe according to claim 1, wherein: the surfaces of the spring (43) and the elastic piece column (42) are coated with insulating layers.

7. A coaxial high current probe according to claim 1, wherein: a circular through hole is formed in the middle of the mounting seat (4), and the inner pipe (3) penetrates through the through hole.