CN206180155U - Novel probe connection device - Google Patents

Abstract

The utility model discloses a novel probe connection device relates to connector technical field. The device includes the mounting panel, pops one's head in and be located the ceramic -insulated base between the two, has seted up a plurality of through -holes on the ceramic -insulated base, is equipped with a plurality of wiring ends and support column on the probe, and the wiring end inserts from through -hole one end, and a plurality of cables insert from the other end of through -hole to be connected with wiring end one -to -one electricity, the support column pass a through -hole and with mounting panel fixed connection. The PE that wiring end inserted the cable connects and to be connected with the sinle silk electricity, saved the welded step, and this kind of connected mode is reliable and stable, is fit for using in narrow and small space just has the environment of high temperature high -intensity magnetic field.

Description

A new type of probe connection device

technical field

The utility model relates to the technical field of connectors, in particular to a novel probe connection device.

Background technique

At present, a large number of experimental devices (strong magnetic field device, tokamak, stellarator, etc.), scientific research equipment (laser fusion, nuclear reactor, etc.), and even some factories (coating industry and solar energy related industries) have strong electromagnetic interference. Under the high temperature environment needs to monitor the demand. Especially for experimental devices, for economic reasons such as saving costs and improving operating efficiency, the size of the device must be controlled within a certain range. However, in order to monitor the operation status of the entire device in real time to provide guidance for the later industrialization process, the operation status of relevant parts of the device needs to be monitored in real time, and the space of many parts is extremely narrow, such as: the divertor area of the tokamak, the imitation star The ash discharge area of the device, etc. At this time, it is necessary to install the relevant diagnostic probes in a specific narrow space, which has a high temperature environment and strong electromagnetic interference, and lead the effective signal to the measuring instrument through the signal line. At the same time, it is necessary to provide power for the probe and send control commands.

Commonly used electrical connection solutions include: Q9, BMC, RJ45, SES, terminal board, aviation plug, etc. However, these commonly used common connection solutions cannot work at high temperatures, such as hundreds of degrees Celsius, and are not suitable for small spaces. For example, the probe used to measure the particle flow on the tokamak has a three-dimensional size of only 2×2×2cm, but there are three signal lines with a diameter of 1mm, and two power lines with a diameter of 4mm, and the distribution is uneven. None of the schemes can meet this requirement in space. To sum up, tin welding, electric welding/argon arc welding or the use of screws to combine special-shaped connectors are generally used in narrow spaces.

As far as the existing technology is concerned, soldering cannot meet the high temperature requirements of hundreds of degrees Celsius, that is, the high temperature causes tin melting and further leads to connection failure; generally, the probe terminal is made of stainless steel, and the cables, that is, power lines and signal lines, in order to reduce noise Convenient wiring is usually oxygen-free copper, so ordinary electric welding is not possible; although argon arc welding solves the problem of connection and meets the requirements of high temperature and strong electromagnetic environment, it is extremely inconvenient to weld in a small space and it will be easy to maintain in the future. It is destructive, the space is narrow and the volume of the probe is limited, and it is easy to damage the probe regardless of welding and disassembly.

Utility model content

The embodiment of the utility model provides a novel probe connecting device to solve the problems existing in the prior art.

A new type of probe connection device, comprising a mounting plate, a ceramic insulating base and a probe, the mounting plate is provided with mounting screw holes on the top surface, and the interior of the ceramic insulating base is provided with a plurality of passages penetrating through two opposite sides. The plurality of through holes include support column fixing holes equivalent in diameter to the mounting screw holes; the bottom surface of the probe is provided with a plurality of terminals corresponding to the positions of the through holes inside the ceramic insulating base , and a support column corresponding to the support column fixing hole, the position of the support column is corresponding to the support column fixing hole and the diameter is equivalent, and the length of the support column is 2 to 5 mm longer than the length of the support column fixing hole; The device also includes a plurality of cables; PE connectors are installed at the ends of each cable, and the cables are inserted into the through holes on the ceramic insulating base except for the fixing holes of the support columns one by one. Among them, the terminals are inserted into the through holes on the ceramic insulating base one by one, and are electrically connected with the cables one by one, and at the same time, the supporting columns pass through the fixing holes of the supporting columns and pass through The mounting screw holes are fixedly connected with the mounting plate.

Preferably, the probe is a particle flow measurement probe.

Preferably, the through hole on the ceramic insulating base also includes a fixing hole for the positive pole line of the power supply, a fixing hole for the negative pole line of the power supply, a fixing hole for the bias voltage output line, a fixing hole for the particle flow collection line and a fixing hole for the chopping output line; The terminal on the probe also includes a positive connection corresponding to the positions of the positive power line fixing hole, the power negative line fixing hole, the bias output line fixing hole, the particle flow collection line fixing hole and the chopping output line fixing hole positions one by one. terminal, negative terminal, bias voltage output terminal, particle flow collection terminal and chopping output terminal; correspondingly, the cable includes a power supply positive line, a power supply negative line, a bias output line, a particle flow collection line and Chop output line.

Preferably, the positive wire of the power supply includes a positive PE connector and a cable sleeve fixedly connected to one end of the positive PE connector, the cable sleeve has a PET copper core wire inside, and the positive PE connector is filled with steel wire, And the steel wire is connected to the PET copper core wire by brazing, and when the positive electrode terminal is inserted into the steel wire, it is electrically connected to the PET copper core wire.

A novel probe connection device provided by an embodiment of the present invention includes a mounting plate, a probe, and a ceramic insulating base located between them. The ceramic insulating base is provided with a plurality of through holes, and the probe is provided with a plurality of terminals. As well as the support column, the terminal is inserted from one end of the through hole, a plurality of cables are inserted from the other end of the through hole, and are electrically connected to the terminals one by one, and the support column passes through a through hole and is fixedly connected to the mounting plate. The terminal is inserted into the PE connector of the cable to be electrically connected to the wire core, eliminating the need for welding steps, and this connection method is stable and reliable, suitable for use in narrow spaces and environments with high temperature and strong magnetic fields.

Description of drawings

Fig. 1 is a schematic structural view of a novel probe connection device provided by an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional structure diagram of the positive wire of the power supply in FIG. 1 .

Explanation of reference signs:

100-mounting plate, 110-mounting screw hole, 200-ceramic insulating base, 210-power supply positive line fixing hole, 220-power supply negative line fixing hole, 230-support column fixing hole, 240-bias output line fixing hole, 250-particle flow collection line fixing hole, 260-chopper output line fixing hole, 300-probe, 310-positive terminal, 320-negative terminal, 330-support column, 340-bias output terminal, 350-particle Stream acquisition terminal, 360-chopper output terminal, 410-power positive wire, 411-positive PE connector, 412-cable sleeve, 413-PET copper core wire, 414-steel wire, 420-power negative wire, 430- Bias voltage output line, 440-particle flow collection line, 450-chopper output line.

detailed description

A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

Referring to Fig. 1, the present invention provides a novel probe connection device, comprising a mounting plate 100, a ceramic insulating base 200 and a probe 300, the mounting plate 100 is provided with a mounting screw hole 110 on the top surface, and the ceramic insulating base The inside of the base 200 is provided with a plurality of through holes passing through two opposite sides, including a support column fixing hole 230 having a diameter equivalent to the mounting screw hole 110, or the diameter of the support column fixing hole 230 can be set to be larger than the diameter of the mounting screw hole 110. The diameter of the mounting screw hole 110 is 1mm. The probe 300 is provided with a plurality of terminals corresponding to the positions of the through holes inside the ceramic insulating base 200 on the bottom surface, and a support column 330 corresponding to the support column fixing hole 230, the support column 330 corresponds to the position of the support column fixing hole 230 and is equivalent in diameter, or the diameter of the support column fixing hole 230 can be set to be 1mm larger than the diameter of the support column 330 to facilitate installation, and the length of the support column 330 It is 2-5 mm longer than the length of the support column fixing hole 230 , that is, the end of the support column 330 is exposed from the bottom of the support column fixing hole 230 after the support column 330 is inserted into the support column fixing hole 230 from the top.

The device also includes a plurality of cables, and each cable end is equipped with a PE (Polyethylene, polyethylene) connector, and the cables can be inserted into the ceramic insulating base 200 one by one except for all In the through holes other than the support column fixing hole 230.

The utility model is described below by taking the connection device of the particle flow measurement probe as an example. It can be understood that the embodiment of the utility model does not specifically limit the type of the probe 300, and because the installed probes 300 are different, the ceramic The number of through holes opened on the insulating base 200 needs to be adjusted accordingly, and the number and types of the cables also need to be adjusted accordingly.

The probe 300 in this embodiment is a particle flow measurement probe, and the through holes on the ceramic insulating base 200 also include a power supply positive line fixing hole 210, a power supply negative line fixing hole 220, a bias output line fixing hole 240, particle Stream collection line fixing hole 250 and chopper output line fixing hole 260 . The terminal on the probe 300 also includes a fixing hole 210 for the positive line of the power supply, a fixing hole 220 for the negative line of the power supply, a fixing hole 240 for the bias voltage output line, a fixing hole 250 for the particle flow collection line and a fixing hole 260 for the chopper output line The positive terminal 310 , the negative terminal 320 , the bias voltage output terminal 340 , the particle flow collection terminal 350 and the chopper output terminal 360 are in one-to-one correspondence. Correspondingly, the cable includes a positive power line 410 , a negative power line 420 , a bias voltage output line 430 , a particle flow collection line 440 and a chopper output line 450 .

Referring to FIG. 2 , the cable includes a power supply positive line 410, a power supply negative line 420, a bias voltage output line 430, a particle flow collection line 440, and a chopper output line 450. The above positive power line 410 is taken as an example for illustration.

The positive power line 410 includes a positive PE connector 411 and a cable sleeve 412 fixedly connected to one end of the positive PE connector 411. The cable sleeve 412 has a PET copper core wire 413 inside, and the positive PE connector 411 is filled with There are a large number of steel wires 414, and the steel wires 414 are soldered to the PET copper core wire 413. When the positive electrode terminal 310 is inserted into the steel wire 414, it can be electrically connected to the PET copper core wire 413.

When the device is assembled, a plurality of the terminals on the probe 300 are inserted through one end of the through hole on the ceramic insulating base 200, and a plurality of the cables are inserted from the ceramic insulating base 200 Insert the other end of the upper through hole so that a plurality of terminals are inserted into the PE connector of the cable in the through hole, and at the same time, the support column 330 is inserted from one end of the support column fixing hole 230, and inserted from the other end of the support column fixing hole 230. One end is exposed, and the mounting plate 100 is fixed to the exposed end of the support column 330 through the mounting screw hole 110 . A plurality of fixing holes may also be provided on the bottom surface of the mounting plate 100 to be fixed on the device to be tested.

After the whole device is assembled, it can withstand high temperature and meet the requirements of continuous work under strong magnetic field. At the same time, the device is easy to disassemble and install without damaging the probe. Due to strong electromagnetic interference in some experimental devices, there are certain requirements for the installation angle of the experimental device. Generally, the angle between the axis of symmetry and the total magnetic field is required to be less than 5-15°. For this probe, it has 5 cables. They are divided into two groups during wiring. After spot welding on the mounting plate with thin stainless steel skins on both sides, the centerline of the whole device can be rotated at an angle of less than 1°. This device assembly is The probe is fixed on the mounting plate by the thread at both ends of the support column, so it cannot be moved on the plane. Since all connections are detachable threaded or in-line connections, it is extremely convenient to disassemble and install during maintenance. The only disassembly that may be damaged is on the spot welded thin stainless steel skin, but this place is far away from the delicate part of the device, that is, the probe, and the spot welding can be removed with only a small pliers, and no violent disassembly is required.

In summary, a new type of probe connection device provided by the embodiment of the present invention includes a mounting plate, a probe, and a ceramic insulating base between them. There are multiple through holes on the ceramic insulating base, and the probe is There are multiple terminals and supporting columns, the terminals are inserted from one end of the through hole, multiple cables are inserted from the other end of the through hole, and are electrically connected with the terminals one by one, the supporting column passes through a through hole and is connected with the installation Board fixed connections. The terminal is inserted into the PE connector of the cable to be electrically connected to the wire core, eliminating the need for welding steps, and this connection method is stable and reliable, suitable for use in narrow spaces and environments with high temperature and strong magnetic fields.

The above disclosures are only a few specific embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any changes conceivable by those skilled in the art should fall within the scope of protection of the present invention.

Claims (4)

1. A novel probe connection device is characterized in that: comprise mounting plate (100), ceramic insulating base (200) and probe (300), described mounting plate (100) offers mounting screw hole ( 110), the interior of the ceramic insulating base (200) is provided with a plurality of through holes penetrating through two opposite sides, and the plurality of through holes include support column fixing holes (230) having a diameter comparable to the mounting screw holes (110) ); the probe (300) is provided with a plurality of terminals corresponding to the through hole positions inside the ceramic insulating base (200) on the bottom surface, and corresponding to the support column fixing holes (230) A supporting column (330), the supporting column (330) corresponds to the position of the supporting column fixing hole (230) and has an equivalent diameter, and the length of the supporting column (330) is greater than the length of the supporting column fixing hole (230) 2 to 5mm; the device also includes a plurality of cables; each cable end is equipped with a PE joint, and the cables are inserted into the ceramic insulating base (200) one by one except for the support In the through holes other than the column fixing holes (230), the terminals are inserted into the through holes on the ceramic insulating base (200) one by one, and are electrically connected with the cables one by one, and at the same time The support column (330) passes through the support column fixing hole (230) and is fixedly connected with the installation plate (100) through the installation screw hole (110). 2. The device according to claim 1, characterized in that the probe (300) is a particle flow measurement probe. 3. The device according to claim 2, characterized in that, the through hole on the ceramic insulating base (200) also includes a power supply positive line fixing hole (210), a power supply negative line fixing hole (220), a bias voltage Output line fixing hole (240), particle flow collection line fixing hole (250) and chopper output line fixing hole (260); the terminal on the probe (300) also includes the positive line fixing hole (210) ), power supply negative line fixing hole (220), bias output line fixing hole (240), particle flow collection line fixing hole (250) and chopper output line fixing hole (260) positions one-to-one corresponding positive terminal (310 ), a negative terminal (320), a bias voltage output terminal (340), a particle flow collection terminal (350) and a chopper output terminal (360); correspondingly, the cable includes a power supply positive line (410) , a negative power supply line (420), a bias voltage output line (430), a particle flow collection line (440) and a chopper output line (450). 4. The device according to claim 3, characterized in that, the positive power line (410) comprises a positive PE connector (411) and a cable sleeve (412) fixedly connected to one end of the positive PE connector (411) , the inside of the cable cover (412) has a PET copper core wire (413), the inside of the positive PE connector (411) is filled with steel wire (414), and the steel wire (414) is connected to the PET copper core wire ( 413) Brazing connection, when the positive terminal (310) is inserted into the steel wire (414), it is electrically connected to the PET copper core wire (413).