Magnetic type Langmuir probe electric connection device

Abstract

The utility model discloses a magnetic type Langmuir probe electric connection device, and relates to the technical field of connection equipment. A probe is arranged at the first end of a plug connector body, a supporting pipe is further arranged at the first end of the plug connector body, at least two clamping grooves which are centrosymmetric about the axis of the supporting pipe are formed in the pipe wall of the supporting pipe, and a first permanent magnet is arranged on the side, away from the first end of the plug connector body, of the supporting pipe; the first end of the socket connector body is provided with a probe interface used for wrapping the probe, the first end of the socket connector body is further provided with a connecting pipe, the pipe wall of the connecting pipe is provided with a protruding part, and the side, away from the first end of the socket connector body, of the connecting pipe is provided with a second permanent magnet matched with the first permanent magnet. The protruding part of the connecting pipe can be clamped in the clamping groove, and when the protruding part is clamped in the clamping groove, the second permanent magnet and the first permanent magnet attract each other. The Langmuir probe is convenient to disassemble, and the reliability of electrical connection of the Langmuir probe can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connection equipment, in particular to a magnetic Langmuir probe electrical connection device. Background Art

[0002] In the field of modern industrial manufacturing, low-temperature plasma technology has received great attention due to its unique treatment effect and wide range of applications. Low-temperature plasma is not only used in many fields such as material surface treatment, pollution control, and nanomaterial synthesis, but its role in energy technology, biomedicine, and semiconductor processing is also becoming increasingly prominent. However, the effective application and promotion of plasma technology, especially in industrial production processes, requires precise control and adjustment of various plasma parameters.

[0003] Accurate acquisition and control of plasma parameters are the prerequisites for improving the effect and process reliability of low-temperature plasma treatment. Among them, the Langmuir probe method, as an effective low-temperature plasma diagnostic tool, has become the preferred technology in current industrial applications due to its simple device structure, low cost and ability to provide multiple plasma parameters. The basic parameters of the plasma, such as electron temperature and electron density, can be obtained through the Langmuir probe, which are crucial for the generation and control of the plasma.

[0004] However, the current Langmuir probe system mainly uses welding and plug-in connection methods to connect the probe or probe array to the subsequent circuit. Although the welding connection can provide a relatively stable electrical connection, its operation is complicated. Once the probe needs to be adjusted or replaced, it will encounter problems such as troublesome operation and difficult disassembly. Although the plug-in connection is improved compared to the welding type in terms of disassembly and maintenance, it mainly uses a threaded fastening connection method, which has problems such as easy loosening and poor reliability.

[0005] Therefore, how to make the Langmuir probe easy to disassemble while ensuring the reliability of its electrical connection has become a technical problem that needs to be solved urgently. Utility Model Content

[0006] The main purpose of the utility model is to provide a magnetic Langmuir probe electrical connection device, which aims to facilitate the disassembly of the Langmuir probe while ensuring the reliability of its electrical connection.

[0007] In order to achieve the above-mentioned object, the utility model proposes a magnetic Langmuir probe electrical connection device, comprising:

[0008] A plug connector body, wherein a probe is provided at the first end of the plug connector body, a support tube is also provided at the first end of the plug connector body, the axis of the probe coincides with the axis of the support tube, a gap is left between the support tube and the probe, at least two grooves are provided on the wall of the support tube that are symmetrical about the axis of the support tube, and a first permanent magnet is provided on the side of the support tube away from the first end of the plug connector body;

[0009] A socket connector body, wherein the first end of the socket connector body is provided with a probe interface for covering the probe, the first end of the socket connector body is also provided with a connecting tube, the axis of the probe interface coincides with the axis of the connecting tube, a gap is left between the connecting tube and the probe interface, a protrusion is provided on the tube wall of the connecting tube, a second permanent magnet cooperating with the first permanent magnet is provided on the side of the connecting tube away from the first end of the socket connector body, the protrusion of the connecting tube can be snapped into the slot, and when the protrusion is snapped into the slot, the second permanent magnet and the first permanent magnet are attracted to each other.

[0010] In one embodiment of the present application, the card slot is L-shaped.

[0011] In one embodiment of the present application, when the number of first permanent magnets on the plug connector body and the number of second permanent magnets on the socket connector body are both two, the polarities of the two first permanent magnets are opposite, and the polarities of the two second permanent magnets are opposite, and when the protrusion is snapped into the slot, the second permanent magnet and the first permanent magnet are in a state of opposite attraction.

[0012] In one embodiment of the present application, a first metal shielding tube is provided between the support tube and the probe, and a second metal shielding tube is provided between the probe interface and the connecting tube. When the protrusion is engaged in the slot, the first metal shielding tube is covered on the outside of the second metal shielding tube.

[0013] In one embodiment of the present application, the probe interface is provided with an opening portion which enables the probe interface to be displaced outward when the probe is inserted.

[0014] In one embodiment of the present application, an annular protrusion is provided on the probe, and when the probe is inserted into the probe interface, the annular protrusion fits against the inner wall of the probe interface.

[0015] In one embodiment of the present application, the support tube and the connected tube are both made of metal material.

[0016] Using the above technical solution, the magnetic Langmuir probe electrical connection device not only provides a fast and reliable electrical connection method through the clever combination of magnetic force and mechanical structure, but also makes the connection and separation of the plug and socket more convenient and intuitive. During use, it can complete the connection or separation without too much pressure or complicated operation, which greatly reduces the difficulty of operation and improves work efficiency. In application scenarios where probes need to be replaced or maintained frequently, this device will significantly reduce the time and cost of equipment maintenance. Using the magnetic force of a permanent magnet as the connection medium, the magnetic connection has less wear and tear and a longer service life than traditional mechanical screws or snap-on fixing methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0018] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0019] 10. Plug connector body; 11. Probe; 12. Support tube; 13. First permanent magnet; 14. First metal shielding tube; 15. Annular protrusion; 20. Socket connector body; 21. Probe interface; 22. Connecting tube; 23. Protrusion; 24. Second permanent magnet; 25. Opening; 26. Second metal shielding tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0021] like Figure 1 As shown, in order to achieve the above-mentioned purpose, the utility model proposes a magnetic Langmuir probe 11 electrical connection device, comprising:

[0022] A plug connector body 10, wherein a probe 11 is provided at the first end of the plug connector body 10, and a support tube 12 is also provided at the first end of the plug connector body 10, wherein the axis of the probe 11 coincides with the axis of the support tube 12, and a gap is left between the support tube 12 and the probe 11, and at least two grooves are provided on the wall of the support tube 12 that are symmetrical about the axis of the support tube 12, and a first permanent magnet 13 is provided on the side of the support tube 12 away from the first end of the plug connector body 10;

[0023] A socket connector body 20, wherein the first end of the socket connector body 20 is provided with a probe interface 21 for covering the probe 11, and the first end of the socket connector body 20 is also provided with a connecting tube 22, the axis of the probe interface 21 coincides with the axis of the connecting tube 22, a gap is left between the connecting tube 22 and the probe interface 21, a protrusion 23 is provided on the tube wall of the connecting tube 22, and a second permanent magnet 24 that cooperates with the first permanent magnet is provided on the side of the connecting tube 22 away from the first end of the socket connector body 20, the protrusion 23 of the connecting tube 22 can be snapped into the slot, and when the protrusion 23 is snapped into the slot, the second permanent magnet 24 and the first permanent magnet 13 are attracted to each other.

[0024] Specifically, the magnetic Langmuir probe 11 electrical connection device is a device for achieving stable electrical connection, and is mainly composed of two parts: a plug connector body 10 and a socket connector body 20 .

[0025] The first end of the plug connector body 10 is connected to a probe 11 element, which is used to connect to an external circuit and is responsible for transmitting signals or currents. The first end of the plug connector body 10 is also connected to a support tube 12, which is coaxially arranged with the probe 11, that is, the axes of the two coincide with each other. Under such a configuration, it is convenient to connect it with other components. There is a gap between the support tube 12 and the probe 11, and the tube wall of the support tube 12 is also designed with at least two grooves that are symmetrical about the center of the axis of the support tube 12 to achieve mechanical engagement with the socket connector body 20. A first permanent magnet 13 is pre-installed at the end of the support tube 12 for magnetic fixation.

[0026] The first end of the socket connector body 20 is connected to a probe interface 21 for covering the probe 11. The probe interface 21 coincides with the axis of the connecting tube 22. A protrusion 23 is provided on the wall of the connecting tube 22, and the protrusion 23 can be engaged with the slot of the plug connector to achieve mechanical fixation of the two connector bodies. A second permanent magnet 24 is provided on the connecting tube 22. When the protrusion 23 and the slot are engaged with each other, the two permanent magnets attract each other, thereby firmly fixing the plug and the socket connector body 20 together.

[0027] When the plug connector body 10 is docked with the socket connector body 20, a connection relationship is first established through the mechanical snap-fit ​​of the slot and the protrusion 23, and then the magnetic attraction of the first and second permanent magnets 24 further provides a stronger connection, ensuring the stable docking of the plug connector body 10 and the socket connector body 20, and preventing the connection from being unstable or even falling off due to vibration or accidental pulling, thereby greatly improving the reliability of the electrical connection of the probe 11.

[0028] Using the above technical solution, the magnetic Langmuir probe 11 electrical connection device not only provides a fast and reliable electrical connection method through the clever combination of magnetic force and mechanical structure, but also makes the connection and separation of the plug and socket more convenient and intuitive. During use, it can complete the connection or separation without too much pressure or complicated operation, which greatly reduces the difficulty of operation and improves work efficiency. In application scenarios where frequent replacement or maintenance of the probe 11 is required, this device will significantly reduce the time and cost of equipment maintenance. Using the magnetic force of a permanent magnet as the connection medium, the magnetic connection has less wear and tear and a longer service life than traditional mechanical screws or snap-on fixing methods.

[0029] In one embodiment of the present application, the card slot is L-shaped.

[0030] With the above technical solution, the L-shaped slot can provide an intuitive and self-guiding direction for the engagement between the plug connector and the socket connector. During the docking process, the protrusion 23 first slides along one side of the L-shaped slot until it touches the corner, and then with further insertion, it finally engages in the inner corner position of the L-shape. This design simplifies the assembly steps and reduces the risk of damage to the device during multiple attempts at docking.

[0031] In one embodiment of the present application, when the number of the first permanent magnets 13 on the plug connector body 10 and the number of the second permanent magnets 24 on the socket connector body 20 are both two, the two first permanent magnets 13 have opposite polarities, and the two second permanent magnets have opposite polarities, and when the protrusion 23 is snapped into the slot, the second permanent magnet 24 and the first permanent magnet 13 are in a state of opposite attraction.

[0032] Specifically, two first permanent magnets 13 are mounted on the end of the support tube 12 away from the plug connector body 10, and their polarities are designed to be opposite, that is, one has the N pole facing outwards and the other has the S pole facing outwards. The inner wall of the support tube 12 of the plug connector body 10 is provided with two L-shaped card slots, which are matched with the connecting tube 22 on the socket connector body 20. The outer wall of the connecting tube 22 has a protrusion 23 corresponding to the card slot, which is used to be snapped into the L-shaped card slot during connection to achieve mechanical positioning.

[0033] Two second permanent magnets 24 are mounted on one end of the connecting tube 22 away from the socket connector body 20 . The two second permanent magnets 24 have opposite polarities, that is, one of the second permanent magnets 24 has an S pole facing outwards and the other has an N pole facing outwards.

[0034] During operation, the connection tube 22 on the socket approaches the support tube 12 of the plug, and is roughly positioned by the guidance of the protrusion 23 and the L-shaped slot. As the plug is inserted deeper, the misaligned protrusion 23 and the slot will be mechanically locked. At this time, the two pairs of opposite magnets are closely opposite to each other, and the strong magnetic attraction firmly adsorbs the two parts together, thus completing the stable docking of the electrical connection device.

[0035] With the above technical solution, two sets of oppositely attracted permanent magnets are used, and the two points are firmly grasped by magnetic force, which significantly improves the connection stability and reduces the connection failure caused by the failure of one side's magnetic force. Since the two permanent magnets have opposite polarities, the interaction of their magnetic fields will naturally repel each other when they are incorrectly docked. This design reduces the risk of damage to the device due to user operation errors and further increases the reliability of use.

[0036] In one embodiment of the present application, a first metal shielding tube 14 is further provided between the support tube 12 and the probe 11, and a second metal shielding tube 26 is further provided between the probe interface 21 and the connecting tube 22. When the protrusion 23 is snapped into the slot, the first metal shielding tube 14 is covered on the outside of the second metal shielding tube 26.

[0037] Specifically, a first metal shielding tube 14 is provided between the support tube 12 and the probe 11, and a second metal shielding tube 26 is provided between the probe interface 21 and the connecting tube 22. When the operator aligns the socket connector body 20 with the plug connector body 10 and gradually inserts the protrusion 23 into the corresponding L-shaped slot, the mechanical positioning of the two components begins. With further pushing, the probe interface 21 in the connecting tube 22 approaches and finally sleeves on the probe 11 on the plug connector. At the same time, the outer first metal shielding tube 14 also moves accordingly until it covers the outside of the second metal shielding tube 26. At this time, the support tube 12 on the plug connector is fixed by the connecting tube 22 of the socket connector, and the two embedded metal shielding tubes form a continuous and seamless metal layer, which covers each other to ensure the integrity of the shielding.

[0038] With the above technical solution, the sheathing structure of the two metal shielding tubes creates a closed electromagnetic environment, effectively blocking external electromagnetic interference and ensuring the purity and accuracy of the signal transmitted by the probe 11. Shielding can not only prevent interference from external signals, but also effectively prevent the signal inside the connector from leaking into the external environment.

[0039] In one embodiment of the present application, the probe interface 21 is provided with an opening 25 which enables the probe interface 21 to be displaced outward when the probe 11 is inserted.

[0040] Specifically, in order to ensure a stable connection between the probe 11 and the probe interface 21, the diameter of the probe 11 is larger than the inner diameter of the probe interface 21, and an opening 25 is provided on the probe interface 21. When the probe 11 is inserted into the probe interface 21, the probe interface 21 will partially shift to both sides, thereby facilitating the insertion of the probe 11.

[0041] The above technical solution has a simple structure and is easy to implement.

[0042] In one embodiment of the present application, an annular protrusion 15 is provided on the probe 11 . When the probe 11 is inserted into the probe interface 21 , the annular protrusion 15 is attached to the inner wall of the probe interface 21 .

[0043] Specifically, in order to further enhance the reliability and stability of the connection, the probe 11 is provided with an annular protrusion 15 on its surface. When the probe 11 is plugged into the probe interface 21, the annular protrusion 15 slides along the axial direction of the probe 11 to the inside of the probe interface 21. In this process, the annular protrusion 15 gradually contacts the inner side wall of the probe interface 21 and fits closely thereon after being inserted into the appropriate position. The close fit between the annular protrusion 15 and the inner side wall of the probe interface 21 ensures the accuracy of the probe 11 during connection and its stability in the plugged state.

[0044] In one embodiment of the present application, the support tube 12 and the connecting tube 22 are both made of metal materials.

[0045] The above technical solution can be used to conveniently shield electromagnetic waves, has a simple structure and is easy to implement.

[0046] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A magnetic Langmuir probe electrical connection device, characterized in that: include: A plug connector body, wherein a probe is provided at the first end of the plug connector body, a support tube is also provided at the first end of the plug connector body, the axis of the probe coincides with the axis of the support tube, a gap is left between the support tube and the probe, at least two grooves are provided on the wall of the support tube that are symmetrical about the axis of the support tube, and a first permanent magnet is provided on the side of the support tube away from the first end of the plug connector body; A socket connector body, wherein the first end of the socket connector body is provided with a probe interface for covering the probe, the first end of the socket connector body is also provided with a connecting tube, the axis of the probe interface coincides with the axis of the connecting tube, a gap is left between the connecting tube and the probe interface, a protrusion is provided on the tube wall of the connecting tube, a second permanent magnet that cooperates with the first permanent magnet is provided on the side of the connecting tube away from the first end of the socket connector body, the protrusion of the connecting tube can be snapped into the slot, and when the protrusion is snapped into the slot, the second permanent magnet and the first permanent magnet are attracted to each other.

2. The magnetic Langmuir probe electrical connection device according to claim 1, characterized in that: The card slot is L-shaped.

3. The magnetic Langmuir probe electrical connection device according to claim 1, characterized in that: When the number of the first permanent magnets on the plug connector body and the number of the second permanent magnets on the socket connector body are both two, the polarities of the two first permanent magnets are opposite, and the polarities of the two second permanent magnets are opposite. When the protrusion is snapped into the slot, the second permanent magnet and the first permanent magnet are in a state of opposite attraction.

4. The magnetic Langmuir probe electrical connection device according to any one of claims 1 to 3, characterized in that: A first metal shielding tube is provided between the support tube and the probe, and a second metal shielding tube is provided between the probe interface and the connecting tube. When the protrusion is engaged in the slot, the first metal shielding tube is covered on the outside of the second metal shielding tube.

5. The magnetic Langmuir probe electrical connection device according to claim 4, characterized in that: The probe interface is provided with an opening portion which enables the probe interface to be displaced outward when the probe is inserted.

6. The magnetic Langmuir probe electrical connection device according to claim 5, characterized in that: The probe is provided with an annular protrusion. When the probe is inserted into the probe interface, the annular protrusion fits on the inner side wall of the probe interface.

7. The magnetic Langmuir probe electrical connection device according to claim 1, characterized in that: The supporting tube and the connected tube are both made of metal materials.

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