Coaxial probe

Abstract

The present invention discloses a coaxial probe, which includes a needle tube, a current probe, a voltage probe and a needle sleeve assembly. The current probe is detachably mounted at the first end of the needle tube. The needle sleeve assembly is mounted inside the needle tube. The voltage probe is detachably mounted on the needle sleeve assembly. The voltage probe is telescopically disposed inside the first end of the needle tube. The needle sleeve assembly is insulated and connected to the needle tube. The current probe and the voltage probe are coaxially arranged. The coaxial probe of the present invention can detachably replace the current probe and / or the voltage probe.

Description

Technical Field

[0001] The present invention relates to the field of probe structures, and particularly to a coaxial probe. Background Art

[0002] During the battery production process, it is necessary to detect the charging, discharging, voltage, current, and resistance of battery semi-finished products. A key operation to achieve detection is to bring the probes of the detection tool into contact with the positive and negative electrodes of the battery, and relevant data is read by the instrument. In actual operation, under the push of the whole machine cylinder, the two poles of the probe come into contact with the positive and negative electrodes of the tested battery, so as to realize the detection of the charging, discharging, voltage, current, and resistance of the battery. However, in the prior art, since the voltage probe and current probe of the probe assembly are vulnerable parts, when either the voltage probe or the current probe is damaged, the probe assembly cannot be used normally. Because neither the voltage probe nor the current probe can be disassembled and replaced, the probe assembly can only be scrapped, resulting in waste.

[0003] Therefore, there is an urgent need for a coaxial probe with a detachable and replaceable current probe and / or voltage probe to overcome the above defects. Summary of the Invention

[0004] The purpose of the present invention is to provide a coaxial probe with a detachable and replaceable current probe and / or voltage probe.

[0005] To achieve the above purpose, the coaxial probe of the present invention includes a needle tube, a current probe, a voltage probe, and a needle sleeve assembly. The current probe is detachably installed at the first end of the needle tube. The needle sleeve assembly is installed inside the needle tube. The voltage probe is detachably installed on the needle sleeve assembly. The voltage probe is telescopically arranged inside the first end of the needle tube. The needle sleeve assembly is insulatedly connected to the needle tube. The current probe and the voltage probe are coaxially arranged.

[0006] Preferably, the coaxial probe of the present invention further includes a voltage needle tube and a first elastic member. The voltage needle tube is detachably installed inside the needle sleeve assembly. The voltage probe is movably arranged inside the voltage needle tube. The first elastic member is installed inside the voltage needle tube and is arranged between the voltage probe and the voltage needle tube. The first elastic member always has a tendency to drive the voltage probe to extend outwards.

[0007] Preferably, a first insulator is sleeved outside the first end of the needle sleeve assembly, and a second insulator is sleeved outside the second end of the needle sleeve assembly. The first insulator and the second insulator are clamped inside the needle tube. The needle sleeve assembly and the needle tube are coaxially arranged.

[0008] Preferably, the needle sleeve assembly includes a mounting needle tube and a connecting piece, the first end of the connecting piece is sleeved inside the second end of the mounting needle tube, the first insulator is sleeved over the first end of the mounting needle tube, and the second insulator is sleeved over the second end of the connecting piece.

[0009] Preferably, a transfer probe is installed at the first end of the needle tube, and the current probe is detachably mounted inside the transfer probe.

[0010] Preferably, the coaxial probe of the present invention also includes a mounting seat slidably mounted on the needle tube, a stop portion is provided on the outer periphery of the needle tube, and a second elastic member is provided between the mounting seat and the adapter probe, and the second elastic member always has a tendency to drive the mounting seat away from the adapter probe and against the stop portion.

[0011] Preferably, the mounting seat is provided with a mounting external thread structure, and a mounting nut is threaded onto the mounting external thread structure.

[0012] Preferably, the second end of the needle tube is provided with an adjustable external screw thread structure, two locking nuts are threaded on the adjustable external screw thread structure, and a tail connector structure is installed on the second end of the connecting piece.

[0013] Preferably, a plurality of current contact spike structures are provided on the active end surface of the current probe, and a plurality of voltage contact spike structures are provided on the active end surface of the voltage probe.

[0014] Preferably, the adapter probe includes a mounting sleeve portion and a plurality of sleeve portions extending outward from one end of the mounting sleeve portion, two adjacent sleeve portions are arranged at intervals, all of the sleeve portions are arranged together on the mounting sleeve portion to form a circle surrounding the axis of the mounting sleeve portion, the free ends of the plurality of sleeve portions are close to each other and arranged together, all of the sleeve portions enclose an installation space, an annular protrusion is provided on the circumference of the first end of the needle tube, the mounting sleeve portion is sleeved on the first end of the needle tube, and the current probe is installed in the installation space.

[0015] Compared with the prior art, the coaxial probe of the present invention includes a needle tube, a current probe, a voltage probe and a needle cover assembly. The current probe is detachably mounted on the first end of the needle tube, the needle cover assembly is mounted in the needle tube, the voltage probe is detachably mounted on the needle cover assembly, the voltage probe is telescopically arranged in the first end of the needle tube, the needle cover assembly is insulated and connected to the needle tube, and the current probe and the voltage probe are coaxially arranged. In this way, when either the current probe or the voltage probe is damaged, it is only necessary to dismantle and replace the damaged current probe or voltage probe, without scrapping the coaxial probe as a whole, thereby reducing the use cost and waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic three-dimensional structure diagram of the coaxial probe of the present invention.

[0017] Figure 2 is Figure 1 the front view of the coaxial probe shown.

[0018] Figure 3 is the sectional view taken along the Figure 2 line A-A in the figure.

[0019] Figure 4 is Figure 1 the schematic three-dimensional exploded structure diagram of the coaxial probe shown.

[0020] Figure 5 is Figure 1 the schematic three-dimensional structure diagram of the coaxial probe shown after hiding the current probe, adapter probe, second elastic member, mounting base, mounting nut and locking nut.

[0021] Figure 6 is the further schematic three-dimensional structure diagram after hiding Figure 5 the needle tube in the figure.

[0022] Figure 7 is the further schematic three-dimensional exploded structure diagram after hiding Figure 6 the structures of the first insulator, second insulator, needle sleeve assembly and tail connector in the figure.

[0023] Figure 8 It is the schematic three-dimensional structure diagram of the adapter probe of the present invention. Detailed Embodiment

[0024] In order to illustrate the technical content and structural features of the present invention in detail, the following further description is made in conjunction with the embodiments and with reference to the drawings.

[0025] As Figures 1 to 3 shown, the coaxial probe 100 of the present invention includes a needle tube 10, a current probe 20, a voltage probe 30 and a needle sleeve assembly 40. The current probe 20 is detachably mounted at the first end of the needle tube 10. The needle sleeve assembly 40 is mounted inside the needle tube 10. The voltage probe 30 is detachably mounted on the needle sleeve assembly 40. The voltage probe 30 is telescopically arranged inside the first end of the needle tube 10. The needle sleeve assembly 40 is insulated and connected to the needle tube 10. The current probe 20 and the voltage probe 30 are coaxially arranged. In this way, when either the current probe 20 or the voltage probe 30 is damaged, only the damaged current probe 20 or voltage probe 30 needs to be disassembled and replaced, without scrapping the entire coaxial probe 100, reducing the use cost and waste.

[0026] As Figures 1 to 3 , Figure 7As shown, the coaxial probe 100 of the present invention further includes a voltage needle tube 50 and a first elastic member 60. The voltage needle tube 50 is detachably installed in the needle sleeve assembly 40, and the voltage probe 30 is movably disposed in the voltage needle tube 50. The first elastic member 60 is installed in the voltage needle tube 50 and is disposed between the voltage probe 30 and the voltage needle tube 50. The first elastic member 60 always has a tendency to drive the voltage probe 30 to extend outwards. 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 assembly are simple. Moreover, the voltage needle tube 50 enables the voltage probe 30 to be stably and reliably installed. With the elastic force of the first elastic member 60, the voltage probe 30 is in closer contact with the object to be detected, ensuring normal conduction. For example, the first elastic member 60 is a spring, but is not limited thereto.

[0027] As Figures 1 to 3 , Figure 5 , Figure 6 shown, a first insulator 70 is sleeved outside the first end of the needle sleeve assembly 40, and a second insulator 80 is sleeved outside the second end of the needle sleeve assembly 40. The first insulator 70 and the second insulator 80 are clamped in the needle tube 10, and the needle sleeve assembly 40 and the needle tube 10 are coaxially arranged. The first insulator 70 and the second insulator 80 are used to stably and firmly install the needle sleeve assembly 40 in the needle tube 10, and at the same time, the insulating connection between the needle sleeve assembly 40 and the needle tube 10 is realized. The first insulator 70 and the second insulator 80 are clamped in the needle tube 10 and are not easily loosened or displaced, improving the installation reliability of the needle sleeve assembly 40. Specifically, the needle sleeve assembly 40 includes a mounting needle tube 41 and a connecting member 42. The first end of the connecting member 42 is sleeved inside the second end of the mounting needle tube 41. The first insulator 70 is sleeved outside the first end of the mounting needle tube 41, and the second insulator 80 is sleeved outside the second end of the connecting member 42. The structure of the needle sleeve assembly 40 is simple, which is convenient for the installation of the voltage needle tube 50 and the output circuit. As Figures 1 to 5 , Figure 8As shown, a transfer probe 90 is installed at the first end of the needle tube 10, and the current probe 20 is detachably mounted in the transfer probe 90. The transfer probe 90 facilitates the disassembly and assembly of the current probe 20. Specifically, the transfer probe 90 includes a mounting sleeve portion 91 and a plurality of mounting portions 92 extending outward from one end of the mounting sleeve portion 91. Two adjacent mounting portions 92 are arranged at intervals, and all the mounting portions 92 are arranged together on the mounting sleeve portion 91 to form a circle surrounding the axis of the mounting sleeve portion 91. The free ends of the plurality of mounting portions 92 are close to each other and arranged together, and all the mounting portions 92 enclose an installation space 93. An annular protrusion 11 is provided on the circumference of the first end of the needle tube 10, and the mounting sleeve portion 91 is mounted on the first end of the needle tube 10, and the current probe 20 is installed in the installation space 93. The annular protrusion 11 allows the mounting sleeve portion 91 to be more stably mounted on the needle tube 10, and also strengthens the circuit transmission between the transfer probe 90 and the needle tube 10. The free ends of the multiple sleeve parts 92 are close to each other and gathered together. When the current probe 20 is installed in the installation space 93, the current probe 20 can be stably and reliably clamped by the sleeve part 92, so that the current probe 20 can be stably and firmly installed on the adapter probe 90.

[0028] like Figures 1 to 5 As shown, the coaxial probe 100 of the present invention also includes a mounting seat 101 that is slidably mounted on the needle tube 10, a stopper 12 is provided on the outer periphery of the needle tube 10, and a second elastic member 102 is provided between the mounting seat 101 and the adapter probe 90, and the second elastic member 102 always has a tendency to drive the mounting seat 101 away from the adapter probe 90 and to the stopper 12. The mounting seat 101 is provided to facilitate the assembly of the coaxial probe 100 to the machine equipment. The mounting seat 101 is slidably mounted on the needle tube 10, meeting the telescopic adjustment detection needs of the coaxial probe 100. The elastic force of the second elastic member 102 can make the current probe 20 more closely contact the object to be measured, ensuring normal conduction. Preferably, the stopper 12 is an annular step structure, but is not limited thereto. For example, the second elastic member 102 is a spring, but is not limited thereto. Specifically, the mounting seat 101 is provided with a mounting external thread structure 1011, and a mounting nut 103 is screwed on the mounting external thread structure 1011. By adjusting the mounting nut 103, the coaxial probe 100 can be conveniently locked to the machine equipment, and by unscrewing the mounting nut 103, the mounting nut 103 can also be conveniently removed.

[0029] like Figures 1 to 7As shown, the second end of the syringe 10 is provided with an adjustable external thread structure 13, and two locking nuts 104 are screwed onto the adjustable external thread structure 13. A tail connector structure 105 is installed at the second end of the connecting member 42. An electrical component for the output circuit (not shown in the figure) is provided between the two locking nuts 104. By rotating and adjusting the locking nuts 104, the two locking nuts 104 clamp the electrical component, realizing the positioning of the electrical component, which is convenient for stably outputting the current signal detected by the current probe 20. The provided tail connector structure 105 is convenient for outputting the voltage signal detected by the voltage probe 30. Specifically, a plurality of current contact pointed structures 21 are provided on the acting end face of the current probe 20, and a plurality of voltage contact pointed structures 31 are provided on the acting end face of the voltage probe 30. The provided current contact pointed structures 21 and voltage contact pointed structures 31 can effectively pierce the oxide layer on the surface of the object to be detected, reducing the detection resistance between the two and facilitating transmission. For example, the current contact pointed structures 21 and voltage contact pointed structures 31 are arranged in a conical structure, but are not limited thereto. All the current contact pointed structures 21 on the current probe 20 are jointly arranged in a circular ring to obtain multiple-point effective contact with the object to be detected, but are not limited thereto.

[0030] Compared with the prior art, the coaxial probe 100 of the present invention includes a syringe 10, a current probe 20, a voltage probe 30, and a needle sleeve assembly 40. The current probe 20 is detachably installed at the first end of the syringe 10. The needle sleeve assembly 40 is installed inside the syringe 10. The voltage probe 30 is detachably installed on the needle sleeve assembly 40. The voltage probe 30 is telescopically arranged inside the first end of the syringe 10. The needle sleeve assembly 40 is insulated and connected to the syringe 10. The current probe 20 and the voltage probe 30 are coaxially arranged. Thus, when either the current probe 20 or the voltage probe 30 is damaged, only the damaged current probe 20 or voltage probe 30 needs to be disassembled and replaced, without having to scrap the coaxial probe 100 as a whole, reducing the use cost and waste.

[0031] The above-disclosed are only the preferred examples of the present invention and cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention all fall within the scope covered by the present invention.

Claims

1. A coaxial probe, characterized in that: The present invention comprises a needle tube, a current probe, a voltage probe and a needle sleeve assembly, wherein the current probe is detachably mounted on the first end of the needle tube, the needle sleeve assembly is mounted in the needle tube, the voltage probe is detachably mounted on the needle sleeve assembly, the voltage probe is telescopically arranged in the first end of the needle tube, the needle sleeve assembly is insulated and connected to the needle tube, and the current probe and the voltage probe are coaxially arranged; the first end of the needle sleeve assembly is sheathed with a first insulator, the second end of the needle sleeve assembly is sheathed with a second insulator, the first insulator and the second insulator enable the needle sleeve assembly to be stably and firmly mounted in the needle tube; the A transfer probe is installed at the first end of the needle tube, and the current probe can be detachably mounted in the transfer probe; the transfer probe includes a mounting sleeve portion and a plurality of mounting portions extending outward from one end of the mounting sleeve portion, two adjacent mounting portions are arranged at intervals, and all the mounting portions are arranged together on the mounting sleeve portion to form a circle surrounding the axis of the mounting sleeve portion, and the free ends of the plurality of mounting portions are close to each other and arranged together, and all the mounting portions enclose an installation space, and an annular protrusion is provided 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, and the current probe is installed in the installation space.

2. The coaxial probe according to claim 1, characterized in that, It also includes a voltage needle tube and a first elastic member. The voltage needle tube is detachably installed in the needle sleeve assembly. The voltage probe is movably arranged in the voltage needle tube. The first elastic member is installed in the voltage needle tube and arranged between the voltage probe and the voltage needle tube. The first elastic member always has a tendency to drive the voltage probe to extend outward.

3. The coaxial probe according to claim 1, characterized in that, 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.

4. The coaxial probe according to claim 3, characterized in that, The needle sleeve assembly includes a mounting needle tube and a connecting piece, wherein the first end of the connecting piece is sleeved inside the second end of the mounting needle tube, the first insulator is sleeved on the first end of the mounting needle tube, and the second insulator is sleeved on the second end of the connecting piece.

5. The coaxial probe according to claim 1, characterized in that, It also includes a mounting seat slidably mounted on the needle tube, a stop portion is provided on the outer periphery of the needle tube, and a second elastic member is provided between the mounting seat and the adapter probe, and the second elastic member always has a tendency to drive the mounting seat away from the adapter probe and against the stop portion.

6. The coaxial probe according to claim 5, characterized in that, The mounting seat is provided with a mounting external thread structure, and a mounting nut is threadedly connected to the mounting external thread structure.

7. The coaxial probe according to claim 4, characterized in that, The second end of the needle tube is provided with an adjusting outer screw thread structure, on which two locking nuts are threadedly connected, and the second end of the connecting piece is provided with a tail connector structure.

8. The coaxial probe according to claim 1, characterized in that, The active end surface of the current probe is provided with a plurality of current contact spike structures, and the active end surface of the voltage probe is provided with a plurality of voltage contact spike structures.

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