CN214845412U

CN214845412U - Coaxial probe

Info

Publication number: CN214845412U
Application number: CN202120052646.XU
Authority: CN
Inventors: 蔡宗明; 黄文强; 李尧
Original assignee: Dongguan CCP Contact Probes Co Ltd
Current assignee: Dongguan CCP Contact Probes Co Ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-11-23
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a coaxial probe, it includes needle tubing, current probe, voltage probe and needle cover subassembly, current probe detachably install in the first end of needle tubing, needle cover subassembly install in the needle tubing, voltage probe detachably install in on the needle cover subassembly, voltage probe telescopically locates in the first end of needle tubing, needle cover subassembly with the needle tubing is insulating to be connected, current probe with voltage probe is coaxial arrangement. The utility model discloses a coaxial probe can be dismantled and change down current probe and/or voltage probe.

Description

Coaxial probe

Technical Field

The utility model relates to a probe structure field especially relates to a coaxial probe.

Background

In the production process of the battery, the charging and discharging of the semi-finished product of the battery and the detection of voltage, current and resistance are required, and one key operation for realizing the detection is to contact a probe of a detection tool with the positive electrode and the negative electrode of the battery and read related data by an instrument. In actual operation, two poles of the probe assembly are in contact with the positive and negative poles of the tested battery under the pushing of the cylinder of the whole machine, so that the charging and discharging of the battery and the detection of voltage, current and resistance are realized. However, in the prior art, since the voltage probe and the current probe of the probe assembly are wearing parts, when any one of the voltage probe and the current probe is damaged, the probe assembly cannot be used normally, and the voltage probe and the current probe cannot be detached and replaced, the probe assembly can only be scrapped, which causes waste.

Accordingly, there is a need for a coaxial probe that allows for removable replacement of the current probe and/or voltage probe to overcome the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can dismantle coaxial probe of changing current probe and/or voltage probe.

In order to achieve the above object, the utility model discloses a coaxial probe includes needle tubing, current probe, voltage probe and needle cover subassembly, current probe detachably install in the first end of needle tubing, needle cover subassembly install in the needle tubing, voltage probe detachably install in on the needle cover subassembly, voltage probe telescopically locates in the first end of needle tubing, needle cover subassembly with needle tubing insulation connects, current probe with voltage probe is coaxial arrangement.

Preferably, the utility model discloses a coaxial probe still includes voltage needle pipe and first elastic component, voltage needle pipe detachably install in the needle cover subassembly, voltage probe movably locates in the voltage needle pipe, first elastic component install in the voltage needle pipe and locate voltage probe with between the voltage needle pipe, first elastic component has constantly orders about the trend that voltage probe outwards stretches out.

Preferably, a first insulator is sleeved outside the first end of the needle sleeve assembly, a second insulator is sleeved outside the second end of the needle sleeve assembly, the first insulator and the second insulator are clamped in the needle tube, and the needle sleeve assembly and the needle tube are coaxially arranged.

Preferably, the needle guard assembly comprises a mounting needle tube and a connecting member, a first end of the connecting member is sleeved in a second end of the mounting needle tube, the first insulator is sleeved outside the first end of the mounting needle tube, and the second insulator is sleeved outside the second end of the connecting member.

Preferably, the first end of the needle tube is provided with a switching probe, and the current probe is detachably sleeved in the switching probe.

Preferably, the utility model discloses a coaxial probe still include one be slidable suit in mount pad on the needle tubing, the periphery of needle tubing is equipped with a backstop portion, the mount pad with establish the second elastic component between the switching probe, the second elastic component has constantly and orders about the mount pad is kept away from in the switching probe and is supported the trend to backstop portion.

Preferably, the mounting seat is provided with an outer mounting thread structure, and the outer mounting thread structure is screwed with a mounting nut.

Preferably, the second end of the needle tube is provided with an adjusting external thread structure, the adjusting external thread structure is screwed with two locking nuts, and the second end of the connecting piece is provided with a tail connector structure.

Preferably, the action end face of the current probe is provided with a plurality of current contact pointed structures, and the action end face of the voltage probe is provided with a plurality of voltage contact pointed structures.

Preferably, the adapter probe comprises a mounting sleeve portion and a plurality of sleeving portions extending outwards from one end of the mounting sleeve portion, two adjacent sleeving portions are arranged at intervals, all the sleeving portions are arranged on the mounting sleeve portion together to form a circle surrounding the axis of the mounting sleeve portion, free ends of the sleeving portions are close to each other and arranged in a gathering mode, a mounting space is defined by all the sleeving portions, an annular bulge is arranged on the peripheral side of the first end of the needle tube, the mounting sleeve portion is sleeved on the first end of the needle tube in an sleeved mode, and the current probe is mounted in the mounting space.

Compared with the prior art, the coaxial probe of the utility model comprises a needle tube, a current probe, a voltage probe and a needle sleeve component. The current probe is detachably arranged at the first end of the needle tube, the needle sleeve assembly is arranged in the needle tube, the voltage probe is detachably arranged on the needle sleeve assembly, the voltage probe is telescopically arranged in the first end of the needle tube, the needle sleeve assembly is in insulated connection with the needle tube, and the current probe and the voltage probe are coaxially arranged. Therefore, when any one of the current probe and the voltage probe is damaged, the damaged current probe or the damaged voltage probe is only needed to be detached and replaced, the whole scrapped coaxial probe is not needed, the use cost is reduced, and the waste is reduced.

Drawings

Fig. 1 is a schematic perspective view of the coaxial probe of the present invention.

Fig. 2 is a front view of the coaxial probe shown in fig. 1.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Fig. 4 is a schematic perspective exploded view of the coaxial probe shown in fig. 1.

Fig. 5 is a schematic perspective view of the coaxial probe shown in fig. 1 after hiding the current probe, the adapter probe, the second elastic member, the mounting seat, the mounting nut, and the locking nut.

FIG. 6 is a perspective view of the needle cannula of FIG. 5 further hidden from view.

Fig. 7 is an exploded view of the first insulator, the second insulator, the needle hub assembly, and the rear connector structure of fig. 6 in further detail.

Fig. 8 is a schematic perspective view of the adapter probe of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 3, the coaxial probe 100 of the present invention includes a needle tube 10, a current probe 20, a voltage probe 30 and a needle hub assembly 40. The current probe 20 is detachably mounted at the first end of the needle tube 10, the needle hub assembly 40 is mounted in the needle tube 10, the voltage probe 30 is detachably mounted on the needle hub assembly 40, the voltage probe 30 is telescopically arranged in the first end of the needle tube 10, the needle hub assembly 40 is in insulated connection with the needle tube 10, and the current probe 20 and the voltage probe 30 are coaxially arranged. Therefore, when any one of the current probe 20 and the voltage probe 30 is damaged, only the damaged current probe 20 or the damaged voltage probe 30 needs to be disassembled and replaced, the coaxial probe 100 does not need to be scrapped integrally, the use cost is reduced, and the waste is reduced.

As shown in fig. 1 to fig. 3 and fig. 7, the coaxial probe 100 of the present invention further includes a voltage needle tube 50 and a first elastic member 60, wherein the voltage needle tube 50 is detachably installed in the needle guard assembly 40, and the voltage probe 30 is movably installed in the voltage needle tube 50. The first elastic member 60 is installed in the voltage probe tube 50 and disposed between the voltage probe 30 and the voltage probe tube 50, and the first elastic member 60 has a tendency to drive the voltage probe 30 to extend outward. When the voltage probe 30 is damaged and needs to be replaced, only the voltage needle tube 50 needs to be disassembled, and the disassembly and the assembly are simple and convenient. The voltage probe 30 can be stably and reliably mounted by the voltage needle 50. By means of the elasticity of the first elastic member 60, the voltage probe 30 is brought into closer contact with the object to be detected, and normal conduction is ensured. For example, the first elastic member 60 is a spring, but is not limited thereto.

As shown in fig. 1-3, 5 and 6, a first insulator 70 is sleeved outside a first end of the needle hub assembly 40, a second insulator 80 is sleeved outside a second end of the needle hub assembly 40, the first insulator 70 and the second insulator 80 are clamped in the needle cannula 10, and the needle hub assembly 40 and the needle cannula 10 are coaxially arranged. The needle hub assembly 40 is stably and securely mounted within the needle cannula 10 by the first insulator 70 and the second insulator 80, while also providing an insulative connection between the needle hub assembly 40 and the needle cannula 10. The first insulator 70 and the second insulator 80 are clamped in the needle tube 10, and are not easy to loose and displace, so that the installation reliability of the needle sleeve assembly 40 is improved. Specifically, the needle hub assembly 40 includes a mounting needle tube 41 and a connecting member 42, a first end of the connecting member 42 is sleeved inside a second end of the mounting needle tube 41, a first insulator 70 is sleeved outside the first end of the mounting needle tube 41, and a second insulator 80 is sleeved outside the second end of the connecting member 42. The needle hub assembly 40 is simple in construction, facilitating the installation of the voltage needle 50 and facilitating the output circuit. As shown in fig. 1 to 5 and 8, an adapter probe 90 is mounted on the first end of the needle cannula 10, and the current probe 20 is detachably sleeved in the adapter probe 90. The adapter probe 90 facilitates the assembly and disassembly of the current probe 20. Specifically, the relay probe 90 includes a mounting sleeve portion 91 and a plurality of fitting portions 92 extending outward from one end of the mounting sleeve portion 91. Two adjacent nesting portions 92 are arranged at intervals, all the nesting portions 92 are arranged on the mounting sleeve portion 91 together in a circle surrounding the axis of the mounting sleeve portion 91, the free ends of the plurality of nesting portions 92 are close to each other and arranged together, and all the nesting portions 92 enclose a mounting space 93. An annular protrusion 11 is provided on the periphery of the first end of the needle tube 10, the mounting sleeve portion 91 is fitted over the first end of the needle tube 10, and the current probe 20 is mounted in the mounting space 93. The provision of the annular protrusion 11 allows the mounting hub 91 to be more stably mounted to the needle cannula 10 while also enhancing the electrical circuit transfer between the transfer probe 90 and the needle cannula 10. The free ends of the plurality of sheathing parts 92 are arranged close to each other and gathered together, so that the current probe 20 can be stably and reliably locked by the sheathing parts 92 when the current probe 20 is mounted in the mounting space 93, and the current probe 20 can be stably and firmly mounted to the relay probe 90.

As shown in fig. 1 to 5, the coaxial probe 100 of the present invention further includes a mounting base 101 slidably mounted on the needle tube 10, a stopping portion 12 is disposed on the periphery of the needle tube 10, a second elastic member 102 is disposed between the mounting base 101 and the adapter probe 90, and the second elastic member 102 constantly has a tendency of driving the mounting base 101 to be away from the adapter probe 90 and to be abutted to the stopping portion 12. A mounting block 101 is provided to facilitate assembly of the coaxial probe 100 to a machine. The mount 101 is slidably mounted to the needle cannula 10 to accommodate the telescoping adjustment of the coaxial probe 100. The elastic force of the second elastic member 102 can make the current probe 20 contact with the object to be measured more tightly, thereby ensuring normal conduction. Preferably, the stopping portion 12 is an annular step structure, but is not limited thereto. For example, the second elastic element 102 is a spring, but is not limited thereto. Specifically, the mounting seat 101 is provided with an outer thread structure 1011, and the mounting nut 103 is screwed on the outer thread structure 1011. The coaxial probe 100 can be conveniently locked to the mechanical equipment by adjusting the mounting nut 103, and the mounting nut 103 can be conveniently detached by unscrewing the mounting nut 103.

As shown in FIGS. 1-7, the second end of the needle cannula 10 is provided with an adjusting external thread structure 13, the adjusting external thread structure 13 is threadedly connected with two locking nuts 104, and the second end of the connecting member 42 is provided with a tail connector structure 105. An electrical component (not shown) for outputting an electrical circuit is disposed between the two locking nuts 104, and the locking nuts 104 are rotated to adjust the locking nuts 104, so that the two locking nuts 104 clamp the electrical component, thereby positioning the electrical component and facilitating to stably output the current signal detected by the current probe 20. The tail connector structure 105 is configured to facilitate the output of a voltage signal detected by the voltage probe 30. Specifically, the active end surface of the current probe 20 is provided with a plurality of current contact pointed structures 21, and the active end surface of the voltage probe 30 is provided with a plurality of voltage contact pointed structures 31. The arranged current contact pointed structure 21 and the voltage contact pointed structure 31 can effectively pierce the oxide layer on the surface of the object to be detected, so that the detection resistance of the current contact pointed structure and the voltage contact pointed structure is reduced, and the transmission is facilitated. For example, the current contact tip structures 21 and the voltage contact tip structures 31 are arranged in a tapered structure, but not limited thereto. All the current contact tip structures 21 on the current probe 20 are arranged together in a circular ring shape to obtain multi-point effective contact with the object to be detected, but not limited thereto.

Compared with the prior art, the coaxial probe 100 of the present invention comprises a needle tube 10, a current probe 20, a voltage probe 30 and a needle guard assembly 40. The current probe 20 is detachably mounted at the first end of the needle tube 10, the needle hub assembly 40 is mounted in the needle tube 10, the voltage probe 30 is detachably mounted on the needle hub assembly 40, the voltage probe 30 is telescopically arranged in the first end of the needle tube 10, the needle hub assembly 40 is in insulated connection with the needle tube 10, and the current probe 20 and the voltage probe 30 are coaxially arranged. Therefore, when any one of the current probe 20 and the voltage probe 30 is damaged, only the damaged current probe 20 or the damaged voltage probe 30 needs to be disassembled and replaced, the coaxial probe 100 does not need to be scrapped integrally, the use cost is reduced, and the waste is reduced.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A coaxial probe, characterized by: including needle tubing, current probe, voltage probe and needle cover subassembly, current probe detachably install in the first end of needle tubing, needle cover subassembly install in the needle tubing, voltage probe detachably install in on the needle cover subassembly, voltage probe telescopically locates in the first end of needle tubing, needle cover subassembly with the needle tubing insulation is connected, the current probe with voltage probe is coaxial arrangement.

2. The coaxial probe of claim 1, further comprising a voltage probe tube detachably mounted in the needle guard assembly, the voltage probe movably disposed in the voltage probe tube, and a first resilient member mounted in the voltage probe tube and disposed between the voltage probe and the voltage probe tube, the first resilient member constantly having a tendency to urge the voltage probe outwardly.

3. The coaxial probe of claim 1, wherein the first end of the needle guard assembly houses a first insulator and the second end of the needle guard assembly houses a second insulator, the first insulator and the second insulator snap fit within the needle cannula, the needle guard assembly being coaxially disposed with the needle cannula.

4. The coaxial probe of claim 3, wherein the needle hub assembly comprises a mounting needle and a connector, wherein a first end of the connector fits within a second end of the mounting needle, wherein the first insulator fits over the first end of the mounting needle, and wherein the second insulator fits over the second end of the connector.

5. The coaxial probe of claim 1, wherein the first end of the needle cannula mounts an adapter probe, and the current probe is removably nested within the adapter probe.

6. The coaxial probe of claim 5, further comprising a mounting base slidably mounted on the needle tube, wherein a stop portion is disposed on the outer circumference of the needle tube, and a second elastic member is disposed between the mounting base and the adapter probe, wherein the second elastic member constantly has a tendency to urge the mounting base away from the adapter probe and against the stop portion.

7. The coaxial probe of claim 6, wherein the mounting base has an outer mounting thread structure, and the outer mounting thread structure has a mounting nut screwed thereon.

8. The coaxial probe of claim 4, wherein the second end of the needle cannula has an outer adjustable thread structure, the outer adjustable thread structure having two locking nuts threaded thereon, the second end of the connector having a rear connector structure mounted thereon.

9. The coaxial probe of claim 1, wherein the current probe has a plurality of current contact spikes on the active end face, and the voltage probe has a plurality of voltage contact spikes on the active end face.

10. The coaxial probe of claim 5, wherein the adapter probe comprises a mounting sleeve portion and a plurality of sheathing portions extending outward from one end of the mounting sleeve portion, two adjacent sheathing portions are arranged at intervals, all the sheathing portions are arranged on the mounting sleeve portion together to form a circle surrounding the axis of the mounting sleeve portion, free ends of the sheathing portions are arranged close to each other and gathered together, all the sheathing portions surround a mounting space, an annular protrusion is arranged on the periphery of the first end of the needle tube, the mounting sleeve portion is sheathed on the first end of the needle tube, and the current probe is mounted in the mounting space.