CN218827871U

CN218827871U - Grounding jig of oscilloscope passive probe

Info

Publication number: CN218827871U
Application number: CN202223135376.2U
Authority: CN
Inventors: 何昆铭
Original assignee: Hefei Zhuoyi Hengtong Information Security Co Ltd
Current assignee: Hefei Zhuoyi Hengtong Information Security Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-07
Anticipated expiration: 2032-11-24

Abstract

The utility model provides a grounding jig of a passive probe of an oscilloscope, which comprises a base part, a connecting part connected with one end of the base part, an elastic part connected with the other end of the base part and a guiding part connected with the elastic part, wherein the base part, the connecting part, the elastic part and the guiding part are made of conductive materials; the connecting part is used for electrically connecting the oscilloscope passive probe; the elastic part is used for elastically clamping in the threaded hole bonding pad of the PCB to be tested and is electrically connected with the threaded hole bonding pad of the PCB to be tested, so that the common grounding of the passive probe of the oscilloscope and the PCB to be tested is realized. The utility model discloses a ground connection tool can be quick nimble realize oscilloscope passive probe ground connection on the PCB board that awaits measuring, and safe and reliable need not the welding simultaneously, and easy operation improves debugging efficiency.

Description

Grounding jig of oscilloscope passive probe

Technical Field

The utility model relates to an oscilloscope technical field especially relates to an oscilloscope passive probe's ground connection tool.

Background

With the development of information technology, electronic products have become fast consumer products, and meanwhile, a serious challenge is brought to the time period of electronic product terminal development, and in order to shorten the time period of electronic product terminal development, efficiency must be improved in research, development, debugging and the like of electronic products. As electronic products are increasingly applied, functions that can be realized by the electronic products are also increasingly abundant. Accordingly, a PCB (Printed Circuit Board) Board of an electronic product must be subjected to various debugging before it is shipped.

The oscilloscope is a widely used electronic measuring instrument, which can convert the invisible electric signal into visible image, and is convenient for people to research the change process of various electric phenomena, and the oscilloscope probe is a physical and electronic connecting line established between the test point or signal source and the oscilloscope, and a good oscilloscope probe can not only improve the measurement precision, but also improve the test efficiency.

At present, ground wires of passive probes equipped in oscilloscopes at home and abroad are all connected in an alligator clip mode, but the ground wires clamped on a PCB by the alligator clips are generally exposed ground wire copper foils clamped at the edge of the PCB or the convex part of a connector shell. The defect is obvious, the detection is limited, the grounding wire is easy to fall off, even the falling grounding wire is easy to cause the short circuit of the tested PCB to cause damage, and the debugging efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a passive probe's of oscilloscope ground connection tool, the realization passive probe of oscilloscope that can be quick nimble ground connection on the PCB board that awaits measuring, safe and reliable need not the welding simultaneously, and easy operation improves debugging efficiency.

In order to achieve the above object, the present invention provides a grounding jig for a passive probe of an oscilloscope, comprising a base portion, a connecting portion connected to one end of the base portion, an elastic portion connected to the other end of the base portion, and a guiding portion connected to the elastic portion, wherein the base portion, the connecting portion, the elastic portion and the guiding portion are made of conductive materials;

the connecting part is used for electrically connecting the oscilloscope passive probe; the elastic part is used for elastically clamping in the threaded hole bonding pad of the PCB to be tested and is electrically connected with the threaded hole bonding pad of the PCB to be tested, so that the common grounding of the passive probe of the oscilloscope and the PCB to be tested is realized.

The base is a stepped cylinder.

The connecting part is annular.

The elastic part comprises a plurality of elastic sheets which are respectively in an arc shape protruding outwards.

The base, the connecting part, the elastic part and the guiding part are made of metal.

The connecting part is made of copper.

The base part, the connecting part, the elastic part and the guiding part are respectively connected into a whole through welding.

The base portion, the connecting portion, the elastic portion and the guide portion are integrally formed into a whole.

The guide part is in a circular truncated cone shape, and the cross-sectional diameter of the guide part gradually decreases from one end close to the elastic part to one end far away from the elastic part.

The utility model has the advantages that: the utility model discloses a grounding jig of a passive probe of an oscilloscope, which comprises a base part, a connecting part connected with one end of the base part, an elastic part connected with the other end of the base part, and a guiding part connected with the elastic part, wherein the base part, the connecting part, the elastic part and the guiding part are made of conductive materials; the connecting part is used for electrically connecting the oscilloscope passive probe; the elastic part is used for elastically clamping in the threaded hole bonding pad of the PCB to be tested and is electrically connected with the threaded hole bonding pad of the PCB to be tested, so that the common grounding of the passive probe of the oscilloscope and the PCB to be tested is realized. The utility model discloses a ground connection tool can be quick nimble realize oscilloscope passive probe ground connection on the PCB board that awaits measuring, and safe and reliable need not the welding simultaneously, and easy operation improves debugging efficiency.

Drawings

For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the present invention and accompanying drawings, which are provided for the purpose of illustration and description and are not intended to limit the present invention.

In the drawings, there is shown in the drawings,

fig. 1 is a perspective view of the grounding jig of the passive probe of the oscilloscope of the utility model;

FIG. 2 is a perspective view of the grounding jig of the passive probe of the oscilloscope of the present invention connected to the PCB to be tested in a common grounding manner;

fig. 3 is another angle perspective view of the utility model discloses oscilloscope passive probe's ground connection tool is connected with the common ground connection of the PCB board that awaits measuring.

Detailed Description

To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Referring to fig. 1, 2 and 3, the present invention provides a grounding jig for a passive oscilloscope probe, including a base portion 1, a connecting portion 3 connected to one end of the base portion 1, an elastic portion 5 connected to the other end of the base portion 1, and a guiding portion 7 connected to the elastic portion 5, wherein the base portion 1, the connecting portion 3, the elastic portion 5 and the guiding portion 7 are made of conductive materials.

The connecting part 3 is used for electrically connecting the oscilloscope passive probe 8; the elastic part 5 is elastically clamped in a threaded hole bonding pad of the PCB 9 to be tested and is electrically connected with the threaded hole bonding pad of the PCB 9 to be tested, so that the common grounding of the oscilloscope passive probe 8 and the PCB 9 to be tested is realized.

When the grounding jig is used, the crocodile clip 81 connected with the grounding wire of the oscilloscope passive probe 8 is clamped on the connecting part 3, so that the oscilloscope passive probe 8 is electrically connected with the connecting part 3, the external force is inserted into the screw hole bonding pad of the PCB to be detected 9 through the guide part 7, the elastic part 5 generates elastic force to extrude the screw hole bonding pad, so that the screw hole bonding pad is elastically clamped on the PCB to be detected 9 and is electrically connected with the screw hole bonding pad of the PCB to be detected 9, and the common grounding of the oscilloscope passive probe 8 and the PCB to be detected 9 is realized. In actual operation, the proper screw hole pad is selected to be inserted into the grounding jig for connection according to different test points on the PCB 9 to be tested. When the test points on the PCB 9 to be tested are concentrated, a plurality of oscilloscope passive probes 8 can share one grounding jig; when the test points are dispersed, a plurality of grounding jigs can be used simultaneously. After the test is finished, the grounding jig is pulled out through external force, and the common grounding connection with the PCB 9 to be tested can be separated.

Specifically, the base 1, the connecting portion 3, the elastic portion 5, and the guide portion 7 are made of metal.

Specifically, the base 1 is a stepped cylinder, so that the grounding jig is inserted into a threaded hole pad of the PCB 9 to be tested to play a limiting role, and can be electrically connected with the threaded hole pad, and the reliability of the electrical connection between the grounding jig and the threaded hole pad is further ensured.

Specifically, the connecting portion 3 is annular, and a metal wire with a diameter of 1mm can be wound into a ring with an inner diameter of 10mm, and the metal wire is preferably a copper wire, that is, the connecting portion 3 is made of copper.

Specifically, the elastic portion 5 includes a plurality of elastic pieces 52, and the elastic pieces 52 are respectively in an arc shape protruding outward.

Specifically, the base portion 1, the connecting portion 3, the elastic portion 5, and the guide portion 7 are integrally connected by welding or integrally formed.

Specifically, the guide portion 7 is in a circular truncated cone shape, and the cross-sectional diameter of the guide portion 7 gradually decreases from one end close to the elastic portion 5 to one end away from the elastic portion 5, so that the insertion into the threaded hole pad is facilitated. The guide portion 7 has a maximum cross-sectional diameter of 2mm and a length of 3mm.

The utility model discloses a grounding jig of oscilloscope passive probe possesses following characteristics:

1. the common grounding connection is used for the oscilloscope passive probe and the PCB to be tested.

2. The oscilloscope passive probe can quickly complete the ground connection and remove the ground connection.

3. The reliability of the grounding connection is good, and the grounding is firm.

4. The connection position of the grounding jig on the PCB to be tested is flexibly selected, welding is not needed, the shape structure of the PCB to be tested is not needed to be damaged, and an oscilloscope passive probe is not needed to be modified.

5. The operation is simple, and the testing efficiency is high.

To sum up, the utility model provides a grounding jig of a passive probe of an oscilloscope, which comprises a base part, a connecting part connected with one end of the base part, an elastic part connected with the other end of the base part and a guiding part connected with the elastic part, wherein the base part, the connecting part, the elastic part and the guiding part are made of conductive materials; the connecting part is used for electrically connecting the oscilloscope passive probe; the elastic part is used for elastically clamping in the threaded hole bonding pad of the PCB to be tested and is electrically connected with the threaded hole bonding pad of the PCB to be tested, so that the common grounding of the passive probe of the oscilloscope and the PCB to be tested is realized. The utility model discloses a ground connection tool can be quick nimble realize oscilloscope passive probe ground connection on the PCB board that awaits measuring, and safe and reliable need not the welding simultaneously, and easy operation improves debugging efficiency.

From the above, it is obvious to those skilled in the art that various other changes and modifications can be made according to the technical solution and the technical idea of the present invention, and all such changes and modifications should fall within the protective scope of the appended claims.

Claims

1. The grounding jig of the oscilloscope passive probe is characterized by comprising a base (1), a connecting part (3) connected to one end of the base (1), an elastic part (5) connected to the other end of the base (1) and a guide part (7) connected with the elastic part (5), wherein the base (1), the connecting part (3), the elastic part (5) and the guide part (7) are made of conductive materials;

the connecting part (3) is used for electrically connecting the oscilloscope passive probe (8); the elastic part (5) is elastically clamped in a threaded hole bonding pad of the PCB (9) to be tested and is electrically connected with the threaded hole bonding pad of the PCB (9) to be tested, so that the common grounding of the oscilloscope passive probe (8) and the PCB (9) to be tested is realized.

2. The grounding jig of the oscilloscope passive probe according to claim 1, characterized in that the base (1) is a stepped cylinder.

3. The grounding jig for an oscilloscope passive probe according to claim 1, characterized in that said connecting part (3) is ring-shaped.

4. The grounding jig of the oscilloscope passive probe according to claim 1, wherein the elastic part (5) comprises a plurality of elastic pieces (52), and the plurality of elastic pieces (52) are respectively in an arc shape protruding outwards.

5. The grounding jig of the passive oscilloscope probe according to claim 1, wherein the base (1), the connecting part (3), the elastic part (5) and the guiding part (7) are made of metal.

6. The grounding jig of the passive oscilloscope probe according to claim 5, wherein the connecting part (3) is made of copper.

7. The grounding jig for the passive oscilloscope probe according to claim 1, wherein the base (1), the connecting portion (3), the elastic portion (5), and the guiding portion (7) are integrally connected by welding, respectively.

8. The grounding jig for the passive oscilloscope probe according to claim 1, wherein the base (1), the connecting portion (3), the elastic portion (5), and the guide portion (7) are integrally formed as a single body.

9. The grounding jig of the passive oscilloscope probe according to claim 1, wherein the guide portion (7) is in a circular truncated cone shape, and the cross-sectional diameter of the guide portion (7) is gradually reduced from one end close to the elastic portion (5) to one end far from the elastic portion (5).