A high-temperature and high-pressure resistant sealed connector
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN MEISTER ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
Smart Images

Figure CN224458750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-temperature connector technology, and in particular to a high-temperature and high-pressure resistant sealed connector. Background Technology
[0002] A connector is a component used to connect electronic devices, circuits, or systems, enabling the transmission of signals, current, or data. Its core function is to provide a pluggable interface, facilitating the assembly, maintenance, or expansion of equipment. Connectors are the "bridges" of electronic systems, and their performance directly affects the reliability, transmission rate, and compatibility of the equipment.
[0003] Connectors have a wide range of applications. However, traditional connectors are difficult to operate stably in high-temperature and high-pressure environments. Therefore, a high-temperature and high-pressure resistant sealed connector is proposed to improve the connector and solve the above problems. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-temperature and high-pressure resistant sealed connector, which effectively solves the deficiencies of the prior art.
[0005] To achieve the above objectives, one embodiment of the present invention provides a high-temperature and high-pressure resistant sealed connector, including a socket housing and a plug housing. A first base is installed inside the socket housing, and a plurality of first through holes are opened inside the first base, and a metal tube is installed inside the first base.
[0006] The plug housing has a second base installed inside. The second base has multiple second through holes inside, and each of them has a metal pin installed inside for insertion into a metal tube. The end of the plug housing protrudes outward to form a stepped protrusion. A connecting sleeve is rotatably installed on the outer wall of the protrusion. The connecting sleeve is threadedly connected to the outer wall of the socket housing. A high-temperature sealing ring is installed between the connecting sleeve and the protrusion.
[0007] A high-temperature gasket is installed between the first base and the second base.
[0008] Preferably, in any of the above embodiments, high-temperature conductors are installed at the ends of the socket housing and plug housing that are furthest apart. A first connecting sleeve and a second connecting sleeve are respectively installed between the socket housing and plug housing and the high-temperature conductors. In this embodiment, the high-temperature conductor can be a mineral-insulated cable, with an outer wall wrapped in a copper sheath and an interior filled with powdered, non-polar insulating material to separate the conductor from the copper sheath. It is non-flammable and does not support combustion, and can still operate stably under near-flame conditions, ensuring circuit continuity. The mineral-insulated cable can withstand continuous operating temperatures up to 250°C. Furthermore, in emergency situations, the cable can continue to operate energized for a short time at temperatures close to the melting point of the copper sheath.
[0009] The battery core in the high-temperature conductor is fixedly connected to the ends of the metal needle and metal tube by resistance welding, which facilitates the connection of the circuit, reduces interference from the external temperature, and ensures the stability of the current flow.
[0010] Preferably, in any of the above embodiments, an octagonal locking block is installed in the middle of the socket housing, and four first guide grooves are formed on the inner wall of the socket housing. A guide strip that mates with the first guide grooves is installed on the outer wall of the first base. The first base is made of high-temperature ceramic. This design facilitates the use of tools to lock onto the outer wall of the octagonal locking block during installation, allowing the connecting sleeve to rotate and thus stably connect the connecting sleeve to the socket housing, ensuring a stable connection between the metal pin and the metal tube. The multiple guide strips, by cooperating with the first guide grooves, increase the contact area between the first base and the socket housing, facilitating a stable connection between the first base and the socket housing through pressure welding. Furthermore, the first base, made of high-temperature ceramic, possesses high temperature resistance and dielectric properties, and provides stable support for multiple metal tubes, preventing them from maintaining a constant distance from each other and facilitating current transmission.
[0011] Preferably, in any of the above solutions, a blocking ring is installed on the inner wall of the socket housing to block the first base. In this solution, the blocking ring is made of metal and is installed inside the socket housing by welding. Its end face fits against the end face of the first base, thereby facilitating the limiting of the position of the first base and making the first base stably installed inside the socket housing.
[0012] Preferably, in any of the above embodiments, the inner wall of the plug housing is provided with four second guide grooves, the second base near the end of the socket housing has a stepped shape, the outer wall of the second base is provided with a second guide strip that mates with the second guide grooves, the second base is made of high-temperature ceramic, and the second base and the plug housing are fixedly connected by pressure welding in this embodiment. At the same time, the stepped structure of the second base facilitates the increase of the contact area with the end of the plug housing, and thus facilitates the clamping of the high-temperature gasket and the high-temperature sealing ring after the connecting sleeve is tightened, thereby improving the sealing performance of the contact position and avoiding interference from the external environment.
[0013] This utility model has the following advantages:
[0014] 1. This high-temperature and high-pressure resistant sealed connector comprises a socket housing and a plug housing. A first base and a second base are respectively installed inside the socket housing and the plug housing. A connecting sleeve is rotatably installed on the outer wall of the plug housing, and the connecting sleeve is threadedly connected to the socket housing. This allows multiple metal pins to be inserted into the metal tube to achieve circuit connection. Both the first base and the second base are made of high-temperature ceramic, which, combined with the metal material of the socket housing and the plug housing, gives the connector high high-temperature resistance, making it suitable for use in high-temperature environments. The overall structure is simple, the design is reasonable, and it is easy to promote and use.
[0015] 2. This high-temperature and high-pressure resistant sealing connector features a first base and a second base with a high-temperature gasket installed between them. A high-temperature sealing ring is also installed between the connecting sleeve and the protrusion. When the connecting sleeve is tightened with the socket housing, the high-temperature gasket and the high-temperature sealing ring are easily compressed, improving the sealing performance between the socket housing and the plug housing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0018] Figure 3 This is an exploded structural diagram of the entire utility model;
[0019] Figure 4 This is a schematic diagram of the socket housing structure of this utility model;
[0020] Figure 5 This is a first-view structural schematic diagram of the plug shell of this utility model;
[0021] Figure 6 This is a second-view structural schematic diagram of the plug shell of this utility model.
[0022] In the diagram: 1-Socket housing, 2-Octagonal locking block, 3-High-temperature wire, 4-First connecting sleeve, 5-Connecting sleeve, 6-Second connecting sleeve, 7-Plug housing, 8-High-temperature washer, 9-High-temperature sealing ring, 10-Metal pin, 11-Second base, 12-First base, 13-Metal tube, 14-Blocking ring, 15-First guide groove, 16-Guide strip, 17-Second guide strip, 18-Second guide groove. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.
[0024] like Figures 1 to 6 As shown, a high-temperature and high-pressure resistant sealed connector includes a socket housing 1 and a plug housing 7. A first base 12 is installed inside the socket housing 1. The first base 12 has multiple first through holes inside and a metal tube 13 is installed inside it.
[0025] The plug housing 7 has a second base 11 installed inside. The second base 11 has multiple second through holes, and each of them has a metal pin 10 that is inserted into the metal tube 13. The end of the plug housing 7 protrudes outward and forms a stepped protrusion. A connecting sleeve 5 is rotatably installed on the outer wall of the protrusion. The connecting sleeve 5 is threadedly connected to the outer wall of the socket housing 1. A high-temperature sealing ring 9 is installed between the connecting sleeve 5 and the protrusion. The inner wall of the connecting sleeve 5 and the outer wall of the socket housing 1 are both threaded. Before the connecting sleeve 5 is threadedly connected to the socket housing 1, high-temperature sealant needs to be applied to the threads on the outer wall of the socket housing 1 to improve the sealing of the connection position and meet the requirements for use in high-temperature and high-pressure environments.
[0026] A high-temperature gasket 8 is installed between the first base 12 and the second base 11. The high-temperature gasket 8 is mainly used for sealing components under extreme temperature conditions. It is made of high-temperature resistant materials such as metal composite materials, mica, graphite and aramid fiber. It is manufactured by precision stamping or composite lamination process, which can meet the technical requirements of high-temperature sealing in petrochemical plants, power equipment, aerospace and other fields.
[0027] High-temperature conductors 3 are installed at the far ends of the socket housing 1 and plug housing 7. A first connecting sleeve 4 and a second connecting sleeve 6 are respectively installed between the socket housing 1 and plug housing 7 and the high-temperature conductors 3. As an optional technical solution of this utility model, the high-temperature conductors 3 can be mineral-insulated cables, with an outer wall wrapped in a copper sheath and an interior filled with powdered, non-polar insulating material to separate the conductor from the copper sheath. This material is non-flammable and does not support combustion, and can still operate stably under near-flame conditions, ensuring circuit continuity. Mineral-insulated cables can withstand continuous operating temperatures up to 250°C. Furthermore, in emergency situations, the cable can continue to operate energized for a short time at temperatures close to the melting point of the copper sheath.
[0028] The battery core in the high-temperature conductor 3 is fixedly connected to the ends of the metal needle 10 and the metal tube 13 by resistance welding, which facilitates the connection of the circuit, reduces interference from external temperature, and ensures the stability of current flow.
[0029] The first connecting sleeve 4 and the second connecting sleeve 6 are made of metal. They are fixedly connected to the contact positions of the socket shell 1, the plug shell 7 and the high-temperature wire 3 by brazing, respectively, to achieve a sealed connection. Moreover, the connection at the interface position is highly stable, has a long service life, and has good fire resistance and explosion-proof properties, enabling the whole unit to be used in high temperature and high pressure environments.
[0030] An octagonal locking block 2 is installed in the middle of the socket housing 1. Four first guide grooves 15 are opened on the inner wall of the socket housing 1. Guide strips 16 that cooperate with the first guide grooves 15 are installed on the outer wall of the first base 12. The first base 12 is made of high-temperature ceramic. As an optional technical solution of this utility model, this facilitates the use of tools to lock the outer wall of the octagonal locking block 2 during the installation stage, rotate the connecting sleeve 5, and then stably connect the connecting sleeve 5 to the socket housing 1, ensuring a stable connection between the metal pin 10 and the metal tube 13. The multiple guide strips 16 cooperate with the first guide grooves 15 to increase the contact area between the first base 12 and the socket housing 1, which facilitates a stable connection between the first base 12 and the socket housing 1 through pressure welding technology. At the same time, the first base 12 is made of high-temperature ceramic, which has high high-temperature resistance and dielectric properties, and provides stable support for multiple metal tubes 13, avoiding a constant distance between them, and facilitating current transmission.
[0031] A blocking ring 14 is installed on the inner wall of the socket housing 1 to block the first base 12. As an optional technical solution of this utility model, the blocking ring 14 is made of metal and is installed inside the socket housing 1 by welding. Its end face is in contact with the end face of the first base 12, thereby facilitating the limiting of the position of the first base 12 and making the first base 12 stably installed inside the socket housing 1.
[0032] The inner wall of the plug housing 7 is provided with four second guide grooves 18. The second base 11 is stepped near the end of the socket housing 1. The outer wall of the second base 11 is equipped with a second guide strip 17 that cooperates with the second guide grooves 18. The material of the second base 11 is high-temperature ceramic. As an optional technical solution of this utility model, the second base 11 and the plug housing 7 are fixedly connected by pressure welding. At the same time, the stepped structure of the second base 11 can increase the contact area with the end of the plug housing 7. After the connecting sleeve 5 is tightened, it is easy to clamp the high-temperature gasket 8 and the high-temperature sealing ring 9, improve the sealing of the contact position, and avoid the contact position from being interfered with by the external environment.
[0033] This high-temperature and high-pressure resistant sealed connector requires the following steps for use:
[0034] 1) During installation, align the positions of the multiple metal pins 10 with the metal tube 13 and then plug them in.
[0035] 2) Thread the connecting sleeve 5 to the socket housing 1 to install the plug and socket.
[0036] In summary, when used by the user, the socket housing 1 and plug housing 7 are configured, with the first base 12 and the second base 11 respectively installed inside the socket housing 1 and plug housing 7. Simultaneously, a connecting sleeve 5 is rotatably installed on the outer wall of the plug housing 7, and the connecting sleeve 5 is threadedly connected to the socket housing 1. This causes multiple metal pins 10 to be inserted into the metal tube 13, achieving circuit connection. Furthermore, the first base 12 and the second base 11 are both made of high-temperature ceramic, which, combined with the metal material of the socket housing 1 and the plug housing 7, gives the overall connector high high-temperature resistance, facilitating its use in high-temperature environments. The overall structure is simple, rationally designed, and easy to promote and use. By setting the first base 12 and the second base 11, and installing a high-temperature washer 8 between them, and a high-temperature sealing ring 9 between the connecting sleeve 5 and the protrusion, when the connecting sleeve 5 is tightened to the socket housing 1, the high-temperature washer 8 and the high-temperature sealing ring 9 are compressed, improving the sealing performance between the socket housing 1 and the plug housing 7.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high temperature and high pressure resistant sealed connector, characterized by: It includes a socket housing (1) and a plug housing (7). The socket housing (1) has a first base (12) installed inside. The first base (12) has multiple first through holes inside and a metal tube (13) installed inside. The plug housing (7) has a second base (11) installed inside. The second base (11) has multiple second through holes, and each of them has a metal pin (10) that is inserted into the metal tube (13). The end of the plug housing (7) protrudes outward and forms a stepped protrusion. A connecting sleeve (5) is rotatably installed on the outer wall of the protrusion. The connecting sleeve (5) is threadedly connected to the outer wall of the socket housing (1). A high-temperature sealing ring (9) is installed between the connecting sleeve (5) and the protrusion. A high-temperature gasket (8) is installed between the first base (12) and the second base (11).
2. A high temperature and high pressure resistant sealed connector according to claim 1, characterized in that: High-temperature wires (3) are installed at the ends of the socket housing (1) and plug housing (7) that are far apart from each other. A first connecting sleeve (4) and a second connecting sleeve (6) are respectively installed between the socket housing (1) and plug housing (7) and the high-temperature wires (3).
3. A high temperature and high pressure resistant sealed connector according to claim 2, characterized in that: An octagonal locking block (2) is installed in the middle of the socket housing (1). Four first guide grooves (15) are opened on the inner wall of the socket housing (1). A guide strip (16) that cooperates with the first guide grooves (15) is installed on the outer wall of the first base (12). The material of the first base (12) is high-temperature ceramic.
4. A high-temperature and high-pressure resistant sealed connector according to claim 3, characterized in that: The inner wall of the socket housing (1) is fitted with a blocking ring (14) to block the first base (12).
5. A high temperature and high pressure resistant sealed connector according to claim 4, characterized in that: The inner wall of the plug housing (7) is provided with four second guide grooves (18). The second base (11) is stepped near the end of the socket housing (1). The outer wall of the second base (11) is provided with a second guide strip (17) that cooperates with the second guide grooves (18). The material of the second base (11) is high-temperature ceramic.