A high temperature resistant and waterproof connector for nuclear power vibration sensors

Abstract

The invention discloses a high-temperature resistant and waterproof connector for a nuclear power vibration sensor, which has the characteristics of simple structure, firmness, stability, high temperature resistance, and water vapor resistance. The internal and external bosses, boss grooves, matching threads, split notches, locking and positioning blocks, etc. in the application are used to effectively solve the problems of positioning, locking, and fixing of the connector. The insulation, sealing, and waterproofing of the connector are effectively solved by glazing the surface of insulating ceramics, welding the second shell and cable, welding the locking and positioning blocks and cables, welding the shell and cable, and welding the first shell and shell. The insulation, sealing, and waterproofing of the connector are effectively solved by insulating ceramic materials, porcelain-sealed alloy materials, stainless steel materials, etc. The high-temperature resistance and waterproofing of the connector are effectively solved. At the same time, the external threads of the first shell, the first pin, etc. in the application match commercial cable sockets, and have broad market promotion value in high-temperature and high-humidity environments such as nuclear power.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to a high-temperature resistant and waterproof connector for a nuclear power vibration sensor. Background Art

[0002] The vibration sensor is a high output impedance sensor. Changes in impedance characteristics will cause changes in the performance of the sensor, reduce technical indicators, or cause the sensor to fail. Temperature and radiation will affect the structural characteristics of nuclear power vibration sensors, thereby affecting their sealing performance. In addition, the high humidity characteristics of the sensor in the nuclear power working environment cause the sensor output impedance to decrease in the above-mentioned composite environment, which may cause the sensor to fail. Connectors are the key to the transmission and conversion of vibration sensor signals, and connectors equipped with high temperature resistance and water vapor resistance are the prerequisite for the long-term stable operation of nuclear power vibration sensors. However, connectors in the prior art do not have good high temperature resistance and water vapor resistance.

[0003] Therefore, it is urgent to develop a high temperature resistant and waterproof connector for nuclear power vibration sensors to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a high temperature resistant and waterproof connector for nuclear power vibration sensors.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high temperature resistant and waterproof connector for a nuclear power vibration sensor, comprising:

[0007] A first plug (1); the first plug (1) comprises a first shell (1-3), a plurality of first plug pins (1-2), and a first insulating ceramic (1-5); a through hole is provided inside the first shell (1-3), the first insulating ceramic (1-5) is installed in the through hole of the first shell (1-3), a plurality of through holes are provided in the first insulating ceramic (1-5), the head of the first plug pin (1-2) is inserted into the through hole of the first insulating ceramic (1-5), passes through and is then placed in the through hole of the first shell (1-3); the first plug (1) is connected to an externally purchased standard cable socket;

[0008] The second plug (2) comprises a second shell (2-6), a plurality of second plug pins (2-1), a second insulating ceramic (2-3), a third insulating ceramic (2-5), a second plug pin soldering port (2-2), and a second ceramic soldering port (2-4); a plurality of through holes are arranged in the second insulating ceramic (2-3), the plurality of second plug pins (2-1) are arranged in the through holes in the second insulating ceramic (2-3), the head of the second plug pin (2-1) is inserted into the tail of the first plug pin (1-2), so as to form a connector; a through hole is arranged inside the second shell (2-6) The second insulating ceramic (2-3) and the third insulating ceramic (2-5) are both installed in the through hole of the second shell (2-6), and the first end of the second insulating ceramic (2-3) is connected to the first end of the third insulating ceramic (2-5); a plurality of armored cable wire channels (2-5a) are arranged in the third insulating ceramic (2-5), and the plurality of armored cable wire channels (2-5a) are respectively connected to the inside of the plurality of second plug pins (2-1); the armored cable wires led out of the vibration sensor are inserted into the plurality of armored cable wire channels (2-5a) and electrically connected to the second plug pins (2-1);

[0009] A shell (3); a through hole is provided inside the shell (3), and a portion of the first plug (1) and the second plug (2) are installed in the through hole in the shell (3).

[0010] Specifically, the high temperature resistant and waterproof connector for a nuclear power vibration sensor also includes a locking positioning block (4); a first conical surface is formed at the first end of the locking positioning block (4); a second conical surface matching the first conical surface of the locking positioning block (4) is formed on the inner wall of the shell (3); the locking positioning block (4) is installed in a through hole in the shell (3); the first conical surface and the second conical surface are sealed and matched; the second end of the locking positioning block (4) is connected to the second shell; a through hole is provided on the locking positioning block (4); the through hole of the locking positioning block (4) is connected to the through hole of the second shell (2-6) and the through hole of the shell (3); the armored cable led out of the vibration sensor is inserted into the through hole of the shell (3) and the through hole of the locking positioning block (4).

[0011] Specifically, the first outer wall of the first shell (1-3) is provided with a first external thread (1-3a), an annular external boss (1-3c), and a second external thread (1-3d) in sequence from the first end to the second end; the inner wall of the first shell (1-3) is provided with an annular internal boss (1-3b); the first end of the first insulating ceramic (1-5) is formed with a disc boss (1-5b), and the first end surface of the first insulating ceramic (1-5) is provided with a first insulating ceramic glazed surface (1-5a); the annular internal boss (1 -3b) is locked and sealed with the disc boss (1-5b); the first end of the first shell (1-3), the first external thread (1-3a), and the annular external boss (1-3c) are all placed outside the shell (3); the first shell (1-3) is screwed and sealed with the purchased standard cable socket through the first external thread (1-3a), the second external thread (1-3d) is screwed and sealed with the internal thread on the inner wall of the shell (3), and the first shell (1-3) is locked and sealed with the shell (3) through the annular external boss (1-3c).

[0012] Specifically, a first ceramic solder opening (1-4) is provided at the end of the connection between the first shell (1-3) and the first insulating ceramic (1-5), and a first plug-in pin solder opening (1-6) is provided at the end of the connection between the first insulating ceramic (1-5) and the first plug-in pin (1-2); solder is introduced through the first ceramic solder opening (1-4) for welding, sealing and fixing the first shell (1-3) and the first insulating ceramic (1-5); solder is introduced through the first plug-in pin solder opening (1-6) for welding, sealing and fixing the first insulating ceramic (1-5) and the first plug-in pin (1-2).

[0013] Specifically, a circular boss (2-3a) is provided at the first end of the second insulating ceramic (2-3); a circular groove (2-5c) is provided at the first end of the third insulating ceramic (2-5); the circular boss (2-3a) is inserted into the circular groove (2-5c) for installation; a third insulating ceramic glazed surface (2-5b) is provided at the second end of the third insulating ceramic (2-5); and the second end of the third insulating ceramic (2-5) is connected to the second shell (2-6) through the third insulating ceramic glazed surface (2-5b) for locking and sealing.

[0014] Specifically, a second ceramic solder opening (2-4) is provided at the end of the connection between the second shell (2-6) and the second insulating ceramic (2-3), and a second pin solder opening (2-2) is provided at the end of the connection between the second insulating ceramic (2-3) and the second pin (2-1); solder is introduced through the second ceramic solder opening (2-4) for welding, sealing and fixing the second shell (2-6) and the second insulating ceramic (2-3); solder is introduced through the second pin solder opening (2-2) for welding, sealing and fixing the second insulating ceramic (2-3) and the second pin (2-1).

[0015] Specifically, there are two armored cable wire channels (2-5a) in the third insulating ceramic (2-5), and correspondingly, there are two first pins (1-2) and two second pins (2-1); the two armored cable wire channels (2-5a) do not cross each other, and the two armored cable wire channels (2-5a) are symmetrically distributed along the central axis of the connector; the two first pins (1-2) are symmetrically distributed along the central axis of the connector; and the two second pins (2-1) are symmetrically distributed along the central axis of the connector.

[0016] Specifically, the head of the first plug pin (1-2) is in the shape of a spherical head, and a first plug pin splitting notch (1-7) is provided in the tail of the first plug pin (1-2); the head of the second plug pin (2-1) is inserted into the first plug pin splitting notch (1-7) of the first plug pin (1-2), and the first plug pin splitting notch (1-7) and the second plug pin (2-1) are welded to connect the first plug pin (1-2) with the second plug pin (2-1) internally.

[0017] Specifically, the first shell (1-3), the first plug pin (1-2), the second shell (2-6), the second plug pin (2-1), and the locking positioning block (4) are all made of a ceramic sealing alloy material; the first insulating ceramic (1-5), the second insulating ceramic (2-3), and the third insulating ceramic (2-5) are all made of a 95% alumina ceramic material; and the housing (3) is made of a stainless steel material.

[0018] Specifically, the locking positioning block (4), the shell (3), and the second shell (2-6) are all welded to the armored cable; and the first shell (1-3) and the shell (3) are welded.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present application has the characteristics of simple structure, firmness, stability, high temperature resistance, and water vapor resistance; the internal and external bosses, boss grooves, matching threads, split notches, locking positioning blocks, etc. in the present application are used to effectively solve the problems of connector positioning, locking, and fixing; the insulating ceramic surface glazing, second shell and cable welding, locking positioning block and cable welding, shell and cable welding, first shell and shell welding, etc. are used to effectively solve the problems of connector insulation, sealing, and waterproofing; insulating ceramic materials, porcelain-sealed alloy materials, stainless steel materials, etc. are used to effectively solve the problems of connector high temperature resistance and waterproofing; at the same time, the first shell external thread, the first pin, etc. in the application match the commercial cable socket, and have broad market promotion value in high temperature and high humidity environments such as nuclear power. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a high temperature resistant and waterproof connector for a nuclear power vibration sensor disclosed in an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the first plug structure disclosed in the embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the second plug structure disclosed in the embodiment of the present application;

[0024] Figure 4 It is a left view of the embodiment of the present application.

[0025] Among them, 1. the first plug; 2. the second plug; 3. the shell; 4. the locking positioning block; 1-1. the positioning boss; 1-2. the first pin; 1-3. the first shell; 1-3a. the first external thread; 1-3b. the annular inner boss; 1-3c. the annular outer boss; 1-3d. the second external thread; 1-4. the first ceramic solder port; 1-5. the first insulating ceramic; 1-5a. the glazed surface of the first insulating ceramic; 1-5b. the disc boss; 1-6. the first pin solder port; 1-7. the first pin split notch; 2-1. the second pin; 2-2. the second pin solder port; 2-3. the second insulating ceramic; 2-3a. the circular boss; 2-4. the second ceramic solder port; 2-5. the third insulating ceramic; 2-5a. the armored cable wire channel; 2-5b. the glazed surface of the third insulating ceramic; 2-5c. the circular groove; 2-6. the second shell. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention provides the following technical solutions:

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, a high temperature resistant and waterproof connector for a nuclear power vibration sensor comprises:

[0029] A first plug (1); the first plug (1) comprises a first shell (1-3), a plurality of first plug pins (1-2), and a first insulating ceramic (1-5); a through hole is provided inside the first shell (1-3), the first insulating ceramic (1-5) is installed in the through hole of the first shell (1-3), a plurality of through holes are provided in the first insulating ceramic (1-5), the head of the first plug pin (1-2) is inserted into the through hole of the first insulating ceramic (1-5), passes through and is then placed in the through hole of the first shell (1-3); the first plug (1) is connected to an externally purchased standard cable socket;

[0030] A second plug (2); the second plug (2) comprises a second housing (2-6), a plurality of second plug pins (2-1), a second insulating ceramic (2-3), a third insulating ceramic (2-5), a second plug pin soldering port (2-2), and a second ceramic soldering port (2-4); a plurality of through holes are arranged in the second insulating ceramic (2-3), the plurality of second plug pins (2-1) are arranged in the through holes in the second insulating ceramic (2-3), the head of the second plug pin (2-1) is inserted into the tail of the first plug pin (1-2), so as to form a connector (the first plug pin (1-2) and the second plug pin (2-1) are electrically connected); the second A through hole is provided inside the shell (2-6), the second insulating ceramic (2-3) and the third insulating ceramic (2-5) are both installed in the through hole of the second shell (2-6), and the first end of the second insulating ceramic (2-3) is connected to the first end of the third insulating ceramic (2-5); a plurality of armored cable wire channels (2-5a) are provided inside the third insulating ceramic (2-5), and the plurality of armored cable wire channels (2-5a) are respectively connected to the inside of a plurality of second plug pins (2-1); the armored cable wires led out of the vibration sensor are inserted into the plurality of armored cable wire channels (2-5a) and electrically connected to the second plug pins (2-1);

[0031] A shell (3); a through hole is provided inside the shell (3), and a portion of the first plug (1) and the second plug (2) are installed in the through hole in the shell (3).

[0032] like Figure 1 As shown, the high temperature resistant and waterproof connector for nuclear power vibration sensor also includes a locking positioning block (4); the first end of the locking positioning block (4) is formed with a first conical surface, the inner wall of the shell (3) is formed with a second conical surface matching the first conical surface of the locking positioning block (4), the locking positioning block (4) is installed in a through hole in the shell (3), the first conical surface and the second conical surface are sealed and matched, and the second end of the locking positioning block (4) is connected to the second shell; a through hole is provided on the locking positioning block (4), and the through hole of the locking positioning block (4) is connected to the through hole of the second shell (2-6) and the through hole of the shell (3); the armored cable led out of the vibration sensor is inserted into the through hole of the shell (3) and the through hole of the locking positioning block (4).

[0033] like Figure 2As shown, the first outer wall of the first shell (1-3) is provided with a first external thread (1-3a), an annular external boss (1-3c), and a second external thread (1-3d) in sequence from the first end to the second end; the inner wall of the first shell (1-3) is provided with an annular internal boss (1-3b); the first end of the first insulating ceramic (1-5) is formed with a disc boss (1-5b), and the first end surface of the first insulating ceramic (1-5) is provided with a first insulating ceramic glazed surface (1-5a); the annular internal boss (1 -3b) is locked and sealed with the disc boss (1-5b); the first end of the first shell (1-3), the first external thread (1-3a), and the annular external boss (1-3c) are all placed outside the shell (3); the first shell (1-3) is screwed and sealed with the purchased standard cable socket through the first external thread (1-3a), the second external thread (1-3d) is screwed and sealed with the internal thread on the inner wall of the shell (3), and the first shell (1-3) is locked and sealed with the shell (3) through the annular external boss (1-3c).

[0034] The connection between the first shell (1-3) and the first insulating ceramic (1-5) is two continuous corners, and a first insulating ceramic glazed surface (1-5a) is provided on the first end face of the first insulating ceramic (1-5), thereby improving the insulation and sealing performance of the present application.

[0035] like Figure 2 As shown, a first ceramic solder opening (1-4) is provided at the end of the connection between the first shell (1-3) and the first insulating ceramic (1-5), and a first plug-in pin solder opening (1-6) is provided at the end of the connection between the first insulating ceramic (1-5) and the first plug-in pin (1-2). Solder is introduced through the first ceramic solder opening (1-4) for welding and sealing the first shell (1-3) and the first insulating ceramic (1-5); solder is introduced through the first plug-in pin solder opening (1-6) for welding and sealing the first insulating ceramic (1-5) and the first plug-in pin (1-2).

[0036] The first pin solder opening (1-6) and the first ceramic solder opening (1-4) are arranged in a full circle, so that the injected solder can completely fill the space between the first insulating ceramic (1-5) and the first pin (1-2), and between the first shell (1-3) and the first insulating ceramic (1-5);

[0037] like Figure 3As shown, the first end of the second insulating ceramic (2-3) is provided with a circular boss (2-3a); the first end of the third insulating ceramic (2-5) is provided with a circular groove (2-5c); the circular boss (2-3a) is inserted into the circular groove (2-5c) for installation; the second end of the third insulating ceramic (2-5) is provided with a third insulating ceramic glazed surface (2-5b), and the second end of the third insulating ceramic (2-5) is connected to the second shell (2-6) through the third insulating ceramic glazed surface (2-5b) for locking and sealing.

[0038] The combination of the circular boss (2-3a) and the circular groove (2-5c) and the design of the third insulating ceramic glazed surface (2-5b) produces four corners, thereby improving the insulation and sealing performance of the present application.

[0039] like Figure 3 As shown, a second ceramic solder opening (2-4) is provided at the end of the connection between the second shell (2-6) and the second insulating ceramic (2-3), and a second plug-in pin solder opening (2-2) is provided at the end of the connection between the second insulating ceramic (2-3) and the second plug-in pin (2-1). Solder is introduced through the second ceramic solder opening (2-4) for welding and sealing the second shell (2-6) and the second insulating ceramic (2-3); solder is introduced through the second plug-in pin solder opening (2-2) for welding and sealing the second insulating ceramic (2-3) and the second plug-in pin (2-1).

[0040] The second pin solder opening (2-2) and the second ceramic solder opening (2-4) are arranged in a full circle, so that the injected solder can completely fill the space between the second shell (2-6) and the second insulating ceramic (2-3), and between the second insulating ceramic (2-3) and the second pin (2-1);

[0041] like Figure 1 , Figure 2 , Figure 3 As shown, there are two armored cable wire channels (2-5a) in the third insulating ceramic (2-5), and correspondingly, there are two first pins (1-2) and two second pins (2-1); the two armored cable wire channels (2-5a) do not cross each other, and the two armored cable wire channels (2-5a) are symmetrically distributed along the central axis of the connector; the two first pins (1-2) are symmetrically distributed along the central axis of the connector; and the two second pins (2-1) are symmetrically distributed along the central axis of the connector.

[0042] In this embodiment, the two armored cable wire channels (2-5a) are both at a certain angle to the central axis of the connector, and correspondingly the interior of the housing (3) is formed into a funnel-shaped structure.

[0043] like Figure 1 , Figure 2 , Figure 3As shown, the head of the first plug pin (1-2) is in the shape of a spherical head, and the tail of the first plug pin (1-2) is provided with a first plug pin splitting notch (1-7); the head of the second plug pin (2-1) is inserted into the first plug pin splitting notch (1-7) of the first plug pin (1-2) to connect the first plug pin (1-2) with the second plug pin (2-1) internally.

[0044] In this embodiment, the tail of the first plug pin (1-2) and the tail of the second plug pin (2-1) are larger than the head thereof, on the one hand, so as to clamp with the first insulating ceramic (1-5) and the second insulating ceramic (2-3) respectively, and on the other hand, so as to provide a first plug pin splitting notch (1-7) in the tail of the first plug pin (1-2) to facilitate the connection between the first plug pin (1-2) and the second plug pin (2-1);

[0045] The first shell (1-3), the first plug pin (1-2), the second shell (2-6), the second plug pin (2-1), and the locking positioning block (4) are all made of a ceramic sealing alloy material; the first insulating ceramic (1-5), the second insulating ceramic (2-3), and the third insulating ceramic (2-5) are all made of a 95% alumina ceramic material; and the housing (3) is made of a stainless steel material.

[0046] like Figure 1 As shown, the locking positioning block (4), the shell (3), and the second shell (2-6) are all welded to the armored cable; and the first shell (1-3) and the shell (3) are welded.

[0047] like Figure 1 , 2 As shown in Fig. 4, a positioning boss 1-1 is also provided in the present application. The positioning boss 1-1 is provided on the inner wall of the first end of the first shell (1-3). The positioning boss 1-1 is used as a connection guide for the first plug (1) and the externally purchased standard cable socket.

[0048] All welding in this application is preferably laser welding.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant and waterproof connector for a nuclear power vibration sensor, characterized in that: include: A first plug (1); the first plug (1) comprises a first shell (1-3), a plurality of first plug pins (1-2), and a first insulating ceramic (1-5); a through hole is provided inside the first shell (1-3), the first insulating ceramic (1-5) is installed in the through hole of the first shell (1-3), a plurality of through holes are provided in the first insulating ceramic (1-5), the head of the first plug pin (1-2) is inserted into the through hole of the first insulating ceramic (1-5), passes through and is then placed in the through hole of the first shell (1-3); the first plug (1) is connected to an externally purchased standard cable socket; The second plug (2) comprises a second shell (2-6), a plurality of second plug pins (2-1), a second insulating ceramic (2-3), a third insulating ceramic (2-5), a second plug pin soldering port (2-2), and a second ceramic soldering port (2-4); a plurality of through holes are arranged in the second insulating ceramic (2-3), the plurality of second plug pins (2-1) are arranged in the through holes in the second insulating ceramic (2-3), the head of the second plug pin (2-1) is inserted into the tail of the first plug pin (1-2), so as to form a connector; a through hole is arranged inside the second shell (2-6) The second insulating ceramic (2-3) and the third insulating ceramic (2-5) are both installed in the through hole of the second shell (2-6), and the first end of the second insulating ceramic (2-3) is connected to the first end of the third insulating ceramic (2-5); a plurality of armored cable wire channels (2-5a) are arranged in the third insulating ceramic (2-5), and the plurality of armored cable wire channels (2-5a) are respectively connected to the inside of the plurality of second plug pins (2-1); the armored cable wires led out of the vibration sensor are inserted into the plurality of armored cable wire channels (2-5a) and electrically connected to the second plug pins (2-1); A shell (3); a through hole is provided inside the shell (3), and a portion of the first plug (1) and the second plug (2) are installed in the through hole in the shell (3).

2. A high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 1, characterized in that: The high temperature resistant and waterproof connector for a nuclear power vibration sensor also includes a locking positioning block (4); a first conical surface is formed at the first end of the locking positioning block (4); a second conical surface matching the first conical surface of the locking positioning block (4) is formed on the inner wall of the shell (3); the locking positioning block (4) is installed in a through hole in the shell (3); the first conical surface and the second conical surface are sealed and matched; the second end of the locking positioning block (4) is connected to the second shell; a through hole is provided on the locking positioning block (4); the through hole of the locking positioning block (4) is connected to the through hole of the second shell (2-6) and the through hole of the shell (3); the armored cable led out of the vibration sensor is inserted into the through hole of the shell (3) and the through hole of the locking positioning block (4).

3. A high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 1, characterized in that: The first outer wall of the first shell (1-3) is provided with a first external thread (1-3a), an annular external boss (1-3c), and a second external thread (1-3d) in sequence from the first end to the second end; the inner wall of the first shell (1-3) is provided with an annular internal boss (1-3b); the first end of the first insulating ceramic (1-5) is formed with a disc boss (1-5b), and the first end surface of the first insulating ceramic (1-5) is provided with a first insulating ceramic glazed surface (1-5a); the annular internal boss (1-3 b) is locked and sealed with the disc boss (1-5b); the first end of the first shell (1-3), the first external thread (1-3a), and the annular external boss (1-3c) are all placed outside the shell (3); the first shell (1-3) is screwed and sealed with the purchased standard cable socket through the first external thread (1-3a), the second external thread (1-3d) is screwed and sealed with the internal thread on the inner wall of the shell (3), and the first shell (1-3) is locked and sealed with the shell (3) through the annular external boss (1-3c).

4. A high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 3, characterized in that: A first ceramic solder opening (1-4) is provided at the end of the connection between the first shell (1-3) and the first insulating ceramic (1-5), and a first plug-in pin solder opening (1-6) is provided at the end of the connection between the first insulating ceramic (1-5) and the first plug-in pin (1-2). Solder is introduced through the first ceramic solder opening (1-4) for welding, sealing and fixing the first shell (1-3) and the first insulating ceramic (1-5); solder is introduced through the first plug-in pin solder opening (1-6) for welding, sealing and fixing the first insulating ceramic (1-5) and the first plug-in pin (1-2).

5. The high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 1, characterized in that: The first end of the second insulating ceramic (2-3) is provided with a circular boss (2-3a); the first end of the third insulating ceramic (2-5) is provided with a circular groove (2-5c); the circular boss (2-3a) is inserted into the circular groove (2-5c) for installation; the second end of the third insulating ceramic (2-5) is provided with a third insulating ceramic glazed surface (2-5b), and the second end of the third insulating ceramic (2-5) is connected to the second shell (2-6) through the third insulating ceramic glazed surface (2-5b) for locking and sealing.

6. A high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 5, characterized in that: A second ceramic solder opening (2-4) is provided at the end of the connection between the second shell (2-6) and the second insulating ceramic (2-3), and a second plug-in pin solder opening (2-2) is provided at the end of the connection between the second insulating ceramic (2-3) and the second plug-in pin (2-1). Solder is introduced through the second ceramic solder opening (2-4) for welding, sealing and fixing the second shell (2-6) and the second insulating ceramic (2-3); solder is introduced through the second plug-in pin solder opening (2-2) for welding, sealing and fixing the second insulating ceramic (2-3) and the second plug-in pin (2-1).

7. The high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 1, characterized in that: There are two armored cable wire channels (2-5a) in the third insulating ceramic (2-5), and correspondingly, there are two first plug pins (1-2) and two second plug pins (2-1); the two armored cable wire channels (2-5a) do not cross each other, and the two armored cable wire channels (2-5a) are symmetrically distributed along the central axis of the connector; the two first plug pins (1-2) are symmetrically distributed along the central axis of the connector; and the two second plug pins (2-1) are symmetrically distributed along the central axis of the connector.

8. The high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 1, characterized in that: The head of the first plug pin (1-2) is in the shape of a spherical head, and a first plug pin splitting notch (1-7) is provided in the tail of the first plug pin (1-2); the head of the second plug pin (2-1) is inserted into the first plug pin splitting notch (1-7) of the first plug pin (1-2), and the first plug pin splitting notch (1-7) and the second plug pin (2-1) are welded to connect the first plug pin (1-2) with the second plug pin (2-1) internally.

9. A high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 2, characterized in that: The first shell (1-3), the first plug pin (1-2), the second shell (2-6), the second plug pin (2-1), and the locking positioning block (4) are all made of a ceramic sealing alloy material; the first insulating ceramic (1-5), the second insulating ceramic (2-3), and the third insulating ceramic (2-5) are all made of a 95% alumina ceramic material; and the housing (3) is made of a stainless steel material.

10. A high temperature resistant and waterproof connector for a nuclear power vibration sensor according to claim 2, characterized in that: The locking positioning block (4), the shell (3), and the second shell (2-6) are all welded to the armored cable; and the first shell (1-3) and the shell (3) are welded.

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