Short circuit prevention ground wire clamp structure for testing and oscilloscope voltage probe

Abstract

The utility model provides an anti-short-circuit ground wire clamp structure for testing and an oscilloscope voltage probe. A short-circuit-proof ground wire clamp structure for testing comprises a ground wire clamp body and a connecting assembly. The first end of the ground wire clamp body is used for being detachably connected with a probe head, the second end of the ground wire clamp body is detachably connected with the connecting assembly, and the connecting assembly is used for being detachably connected with a main board ground of a main board. The ground wire clamp structure is a split piece composed of the ground wire clamp body and the connecting assembly, the first end of the ground wire clamp body is detachably connected with the probe head, the second end of the ground wire clamp body is detachably connected with the connecting assembly, and the connecting assembly is further used for being detachably connected with the main board ground of the main board. Therefore, the risk of short circuit of the main board caused by the fact that the ground wire clamp is mistakenly overlapped on the main board when the probe head is taken can be completely eradicated, the testing efficiency is improved, the probability of board damage is reduced, and the cost is saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of signal testing, and in particular to a short-circuit proof ground wire clamp structure for testing and an oscilloscope voltage probe. Background Art

[0002] Existing oscilloscope voltage probes consist of a probe head and a ground clamp. The ground clamp has a grooved metal clip on the first end and an alligator clip on the second end, with the alligator clip covered with an insulating leather sheath. The probe head has a slot that engages with the grooved metal clip of the ground clamp and is used to measure signals. To measure signals with an oscilloscope voltage probe, the alligator clip is clamped to the motherboard ground connection, or a copper screw stud is installed in the screw hole reserved for the motherboard ground connection, and then the alligator clip is clamped to the stud.

[0003] Therefore, the ground clip of the current oscilloscope voltage probe is very likely to touch other components on the motherboard and cause a short circuit when used during testing. Even if the manufacturer provides a corresponding insulating leather case for the alligator clip, the leather case is not convenient to use. If the area of ​​the leather case that fits into the alligator clip is too large, it will be very difficult to pinch the alligator clip open, and there will still be exposed metal parts, which will still cause the risk of a short circuit. Utility Model Content

[0004] The present disclosure provides a short-circuit proof ground wire clamp structure for testing and an oscilloscope voltage probe, so as to at least solve one of the technical problems existing in the prior art.

[0005] According to a first aspect of the present disclosure, a short-circuit proof ground clamp structure for testing is provided, comprising a ground clamp body and a connecting assembly; the first end of the ground clamp body is used for detachable connection to the probe head, and the second end is detachable connected to the connecting assembly, and the connecting assembly is used for detachable connection to the motherboard ground of the motherboard.

[0006] In one embodiment, the first end of the ground clamp body is configured as a metal clamp made of metal material, and the second end of the ground clamp body is configured as a first male connector or a first female connector;

[0007] The connecting assembly includes a second female connector or a second male connector plugged into and connected to the second end of the ground clamp body.

[0008] In one embodiment, the connection assembly is composed of a plurality of detachably connected connection components; wherein, at least one connection component is provided with the second female connector or the second male connector, and the main board is fixed between any two adjacent connection components.

[0009] In one embodiment, the connection component includes:

[0010] a first connecting member, wherein a first end of the first connecting member is configured as the second female connector or the second male connector;

[0011] a second connecting member, wherein a first end of the second connecting member is threadedly connected to a second end of the first connecting member;

[0012] The third connecting component has a first end that can be moved through a reserved hole of the main board and then threadedly connected to the second end of the second connecting component, thereby fixing the main board between the third connecting component and the second connecting component.

[0013] In one embodiment, the first connecting component includes a disc component, the second female head or the second male head is arranged at intervals on the first side of the disc component, and the second side of the disc component is provided with a threaded portion for threaded connection with the second connecting component.

[0014] In one embodiment, the second connecting member is provided with the second female connector or the second male connector at intervals along the length direction thereof.

[0015] In one embodiment, the connection component includes:

[0016] a fourth connecting member, on which the second female connector or the second male connector is spaced apart along its length;

[0017] The fifth connecting component has a first end that can be moved through the reserved hole of the main board and then threadedly connected to the end of the fourth connecting component, thereby fixing the main board between the fourth connecting component and the fifth connecting component.

[0018] In one embodiment, when the second end of the ground clamp body is configured as a first female connector, an insulating sleeve is provided on the outside of the first female connector.

[0019] According to a second aspect of the present disclosure, an oscilloscope voltage probe is provided, comprising a probe head and a short-circuit proof ground clamp structure for testing according to any one of the above-mentioned embodiments.

[0020] In one embodiment, a slot is provided on the probe head, and the slot is engaged with the first end of the ground clamp body.

[0021] Compared with the prior art, the advantages of the present application are: 1) The ground clamp structure of the present application is a split part consisting of a ground clamp body and a connecting assembly. The first end of the ground clamp body is detachably connected to the probe head, and the second end is detachably connected to the connecting assembly. The connecting assembly is also used to be detachably connected to the motherboard ground of the motherboard. Therefore, when the ground clamp structure is used in conjunction with the probe head test, it can completely eliminate the risk of the ground clamp being accidentally placed on the motherboard when the probe head is taken, causing a short circuit on the motherboard. This improves the test efficiency while reducing the probability of a bad board and saving costs. 2) The first female connector constructed at the second end of the ground clamp body of the present application is provided with an insulating sleeve on the outside. The provision of the insulating sleeve can prevent the first female connector of the ground clamp body from causing a short circuit when accidentally touching the motherboard, thereby reducing the risk of a short circuit on the motherboard caused by the accidental touching of the ground clamp body during the test. 3) The ground clamp body and the connecting assembly of the present application can be connected by plugging the male and female connectors together, saving time and effort.

[0022] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example and not limitation, wherein:

[0024] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0025] Figure 1 The structure diagram of the ground clamp structure of the embodiment of the present disclosure is shown. Figure 1 ;

[0026] Figure 2 The structure diagram of the ground clamp structure of the embodiment of the present disclosure is shown. Figure 2 ;

[0027] Figure 3 An exploded view of the ground clamp structure of the embodiment of the present disclosure is shown. Figure 1 ;

[0028] Figure 4 An exploded view of the ground clamp structure of the embodiment of the present disclosure is shown. Figure 2 ;

[0029] Figure 5 The schematic diagram shows the structure of the ground clamp structure connected to the mainboard in the embodiment of the present disclosure. Figure 1 ;

[0030] Figure 6The schematic diagram shows the structure of the ground clamp structure connected to the mainboard in the embodiment of the present disclosure. Figure 2 ;

[0031] Figure 7 Shown Figure 5 Explosion diagram.

[0032] Explanation of the numbers in the figure: 1-ground clamp body, 2-connection component, 3-main board, 11-metal clip, 12-first female head, 21-first connection sub-component, 22-second connection sub-component, 23-third connection sub-component, 31-reserved hole, 121-first jack, 211-second male head, 212-disc component, 213-threaded part, 231-step. DETAILED DESCRIPTION

[0033] To make the purposes, features, and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the scope of protection of the present disclosure.

[0034] Currently, existing oscilloscope voltage probes consist of a probe head and a ground clamp structure. The first end of the ground clamp is connected to the probe head's slot through a grooved metal clip, and the other end is connected to the motherboard ground through an alligator clip. However, during actual testing, the alligator clip may occasionally touch other components on the motherboard, causing a short circuit. Even after the alligator clip is covered with an insulating leather sheath, it is very difficult to pinch the alligator clip open, and there is still exposed metal parts, which still poses a short circuit risk. Based on this, the present disclosure provides a short-circuit-proof ground clamp structure for testing.

[0035] According to one embodiment of the present disclosure, the present utility model provides a short-circuit proof ground wire clamp structure for testing (hereinafter referred to as "ground wire clamp structure"). Figure 1-7 As shown, the ground clamp structure includes a ground clamp body 1 and a connecting component 2; the first end of the ground clamp body 1 is used to be detachably connected to the probe head, and the second end is detachably connected to the connecting component 2, and the connecting component 2 is used to be detachably connected to the motherboard ground of the motherboard 3.

[0036] The ground clamp structure of the present application is a split part consisting of a ground clamp body 1 and a connecting assembly 2. The first end of the ground clamp body 1 is detachably connected to the probe head, and the second end is detachably connected to the connecting assembly 2. The connecting assembly 2 is also used to detachably connect to the motherboard ground of the motherboard 3. Therefore, when the ground clamp structure is used in conjunction with the probe head test, since the ground clamp body 1 is detachably connected to the motherboard ground through the connecting assembly, the risk of the ground clamp accidentally being placed on the motherboard when taking the probe head and causing a short circuit can be completely eliminated. While improving test efficiency, it also reduces the probability of board failure and saves costs. Among them, the so-called "motherboard ground" refers to the motherboard GND (the ground wire of the motherboard), also known as the motherboard ground.

[0037] For example, the first end of the grounding clamp body 1 is configured as a metal clamp 11 made of metal material, and the second end of the grounding clamp body 1 is configured as a first male connector or a first female connector;

[0038] The connecting assembly 2 includes a second female connector or a second male connector 211 plugged into and connected to the second end of the ground clamp body 1 .

[0039] In this embodiment, the first end of the ground clamp body 1 is configured as a metal clip 11 for removable connection to the probe head. The second end of the ground clamp body 1 is configured as a first male connector or a first female connector. Accordingly, the connecting assembly 2 includes a second female connector and a second male connector that can be plugged into the first male connector and the first female connector. Therefore, the ground clamp body 1 and the connecting assembly 2 can be connected simply by plugging the male and female connectors into each other, saving time and effort.

[0040] For example, the second end of the ground clamp body 1 can be configured as a first female connector 12. Figure 3-4 As shown, the second end of the ground clamp body 1 is generally rectangular and has a first socket 121 formed thereon. The first socket is a blind hole structure, that is, the first female connector 12 has the first socket 121. Correspondingly, the connecting assembly 2 includes a second male connector 211 that mates with the first female connector 12.

[0041] Furthermore, when the second end of the ground clamp body 1 is configured as the first female connector 12, an insulating sleeve is provided on the exterior of the first female connector 12. The insulating sleeve can be made of a plastic material. The provision of the insulating sleeve prevents the first female connector 12 of the ground clamp body 1 from accidentally contacting the motherboard, thereby reducing the risk of a motherboard short circuit caused by the ground clamp body 1 during testing.

[0042] In one embodiment, connection assembly 2 is comprised of multiple detachably connected connecting components; at least one of the connecting components is provided with a second female connector or a second male connector, and the motherboard ground is secured between any two adjacent connecting components. In this embodiment, connection assembly 2 is comprised of multiple detachably connected connecting components, enabling a more convenient connection to the motherboard ground of motherboard 3 and preventing the risk of a motherboard short circuit caused by the ground clip body 1 accidentally contacting the motherboard 3.

[0043] For example, Figure 3-7 As shown, the connection component 2 includes,

[0044] A first connecting member 21, wherein a first end of the first connecting member 21 is configured as a second female connector or a second male connector 211;

[0045] A second connecting member 22, a first end of the second connecting member 22 being threadedly connected to a second end of the first connecting member 21;

[0046] The third connecting component 23, the first end of the third connecting component 23 can be moved through the reserved hole 31 of the main board ground and then threadedly connected to the second end of the second connecting component 22, thereby fixing the main board ground of the main board between the third connecting component 23 and the second connecting component 22.

[0047] The present application comprises a connection assembly 2 consisting of three connection sub-components. The first end of the first connection sub-component 21 is configured as a second female connector or a second male connector. This connector can be plugged into the first male connector or the first female connector configured at the second end of the grounding clamp body 1, facilitating testing and saving time and effort. For example, Figure 3 As shown, the first end of the first connecting component 21 is configured as a second male connector 211, and correspondingly, the second end of the grounding clamp body 1 is configured as a first female connector 12, wherein the second male connector 211 is adapted to the first socket 121 of the first female connector 12. For example, if the first socket 121 of the first female connector 12 is a square hole, then the corresponding second male connector 211 is in the shape of a rectangular parallelepiped.

[0048] When the connection assembly 2 of the present application is tested with the ground clamp body 1, it is only necessary to pass the third connection sub-component 23 through the reserved hole 31 of the main board ground and then thread it with the second connection sub-component 22 to fix the main board ground between the two. Figure 4-7As shown, the first end of the third connecting component 23 is provided with an external thread, and the diameter of the first end is smaller than the main body diameter of the third connecting component 23, so that the external thread on the first end of the third connecting component 23 and the connection position of its main body form a step 231, and the diameter of the reserved hole 31 of the main board ground is smaller than the diameter of the step 231. Therefore, when the first end of the third connecting component 23 is movable through the reserved hole 31 and is threadedly connected to the second end of the second connecting component, the main board ground can be supported on the step 231 and pressed and fixed to the step of the third connecting component by the second connecting component.

[0049] For example, it can also be, Figure 7 As shown, the reserved hole 31 of the mainboard ground is provided with an internal thread that is compatible with the external thread on the first end of the third connecting component 23. Therefore, the movable thread of the first end of the third connecting component 23 passes through the reserved hole 31 and is threadedly connected to the second end of the second connecting component 22. The mainboard ground thread of the mainboard is fixed to the first end of the third connecting component 23, and finally the mainboard ground thread is fixed between the second connecting component 22 and the third connecting component 23.

[0050] The present application sets the connection component 2 as a split part composed of multiple connection parts, so that when testing, there is no need to use a large force to pinch the alligator clip open and then clamp the motherboard ground like when clamping the motherboard ground with an alligator clip. The entire testing process is very time-saving and labor-saving, and it is convenient to measure signals.

[0051] For example, Figure 3 As shown, the first connecting member 21 includes a disc member 212, a second female head or a second male head is arranged at intervals on the first side of the disc member 212, and a threaded portion 213 for threaded connection with the second connecting member 22 is provided on the second side of the disc member 212. Figure 3 As shown, second male connectors 211 are distributed at intervals along the circumferential direction on the edge of the first side surface of the disc member 212 to facilitate the insertion of the first female connector 12 of the wire clamp body 1 .

[0052] For example, the first connecting member 21 is an integrally formed structure consisting of a disc member 212, a second female connector or a second male connector, and a threaded portion 213. For example, the first connecting member 21 is an integrally formed structure consisting of a disc member 212, a second male connector 211, and a threaded portion 213. This integral structure can be manufactured using a mold, which is simple and convenient to manufacture. It also provides the first connecting member 21 with a certain strength, thereby increasing the service life of the first connecting member 21.

[0053] For example, the second connecting segment 22 is provided with second female or second male connectors 211 spaced apart along its length. In addition to the second female or second male connector 211 provided on the first connecting segment 21 to mate with the first male or first female connector, the second connecting segment 22 can also be provided with a second female or second male connector 211, providing more plugging options for the ground clamp body 1 and allowing the connection position between the ground clamp body 1 and the connecting assembly 2 to be selected according to actual testing requirements.

[0054] Of course, in some cases, the first connecting member may not be used, and only the second connecting member and the third connecting member may be retained, which can also achieve a simple connection with the ground clamp body 1. Specifically, the connecting assembly 2 includes:

[0055] a fourth connecting member, on which second female connectors or second male connectors are spaced apart along the length thereof;

[0056] The fifth connecting component has a first end that can be moved through the reserved hole 31 of the main board and then threadedly connected to the end of the fourth connecting component, thereby fixing the main board between the fourth connecting component and the fifth connecting component.

[0057] For example, the structure of the fourth connecting segment is substantially the same as that of the second connecting segment 22 , and the structure of the fifth connecting segment is substantially the same as that of the third connecting segment 23 .

[0058] According to one embodiment of the present disclosure, the utility model provides an oscilloscope voltage probe, including a probe head, and also including a short-circuit proof ground clamp structure for testing in any one of the above-mentioned embodiments. A card slot is provided on the probe head, and the card slot is engaged with the first end of the ground clamp body 1. The first end of the ground clamp body 1 of the ground clamp structure of the present application is constructed as a metal clip 11 that is engaged with the card slot, and the second end of the ground clamp body 1 is detachably connected to the connecting component 2, and the connecting component 2 is detachably connected to the motherboard ground of the motherboard. Therefore, when the oscilloscope voltage probe is testing the motherboard, the risk of the second end of the ground clamp body 1 accidentally being placed on the motherboard 3 when the probe head is taken away, causing a short circuit, is completely eliminated, thereby improving the test efficiency while reducing the probability of a bad board and saving costs.

[0059] The following is a further explanation of the preparation work of the oscilloscope voltage probe of the present application before testing the motherboard: the first female head 12 constructed at the second end of the ground clamp body 1 is inserted into the second male head 211 of the first connecting part 21, and then the first connecting part 21 and the second connecting part 22 are threaded together, and then the first end of the third connecting part 23 is threaded through the reserved hole 31 of the motherboard ground and threaded together with the second connecting part 22, thereby fixing the motherboard ground between the second connecting part 22 and the third connecting part 23; finally, the metal clip 11 constructed at the first end of the ground clamp body 1 is clamped into the slot of the probe head, and the probe head is used to test the test points on the motherboard in turn.

[0060] It should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0061] The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present application.

[0062] Unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] The descriptions with reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0064] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A short-circuit proof ground clamp structure for testing, characterized by: It includes a ground clamp body and a connecting assembly; the first end of the ground clamp body is used to be detachably connected to the probe head, and the second end is detachably connected to the connecting assembly, and the connecting assembly is used to be detachably connected to the motherboard ground of the motherboard.

2. The short-circuit-proof ground wire clamp structure for testing according to claim 1, characterized in that: The first end of the grounding clamp body is configured as a metal clamp made of metal material, and the second end of the grounding clamp body is configured as a first male connector or a first female connector; The connecting assembly includes a second female connector or a second male connector plugged into and connected to the second end of the ground clamp body.

3. The short-circuit-proof ground wire clamp structure for testing according to claim 2, characterized in that: The connection assembly is composed of a plurality of detachably connected connection parts; wherein, at least one connection part is provided with the second female connector or the second male connector, and the main board is fixed between any two adjacent connection parts.

4. The short-circuit-proof ground wire clamp structure for testing according to claim 3, characterized in that: The connection component includes: a first connecting member, wherein a first end of the first connecting member is configured as the second female connector or the second male connector; a second connecting member, wherein a first end of the second connecting member is threadedly connected to a second end of the first connecting member; The third connecting component has a first end that can be moved through a reserved hole of the main board and then threadedly connected to the second end of the second connecting component, thereby fixing the main board between the third connecting component and the second connecting component.

5. The short-circuit-proof ground wire clamp structure for testing according to claim 4, characterized in that: The first connecting component includes a disc component, the second female heads or the second male heads are arranged at intervals on a first side surface of the disc component, and a threaded portion for threaded connection with the second connecting component is provided on a second side surface of the disc component.

6. The short-circuit-proof ground wire clamp structure for testing according to claim 4, characterized in that: The second connecting member is provided with the second female connector or the second male connector at intervals along the length direction thereof.

7. The short-circuit-proof ground wire clamp structure for testing according to claim 3, characterized in that: The connection component includes: a fourth connecting member, on which the second female connector or the second male connector is spaced apart along its length; The fifth connecting component has a first end that can be moved through the reserved hole of the main board and then threadedly connected to the end of the fourth connecting component, thereby fixing the main board between the fourth connecting component and the fifth connecting component.

8. The short-circuit-proof ground wire clamp structure for testing according to claim 2, characterized in that: When the second end of the ground clamp body is configured as a first female connector, an insulating sleeve is provided on the outside of the first female connector.

9. An oscilloscope voltage probe, comprising a probe head, characterized in that: It also includes a short-circuit-proof ground wire clamp structure for testing according to any one of claims 1 to 8.

10. The oscilloscope voltage probe according to claim 9, characterized in that: A slot is provided on the probe head, and the slot is engaged with the first end of the ground clamp body.

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