A sealed connector with pressure resistance function

Abstract

The utility model provides a sealed connector with pressure resistance function, including connector shell, the one end in connector shell is processed with the slot, the other end is evenly installed with a plurality of inserting pins, the middle part of inserting pin is consolidated in the connector shell through glass, and the one end of inserting pin is inserted into the slot, the other end is from the connector shell and projects, and the side wall of connector shell is processed with the round groove, and the round groove is equipped with pressure buffer assembly, and the connector shell is still installed with the pressure cover and covers the inserting pin that projects the connector shell outside with the pressure cover. The utility model discloses through control glass sintering and realizes the insulation and sealing between contact terminal and connector shell, and sets up the pressure -bearing plate and the structure sealant before the glass child pressure -bearing end, so that when the air pressure impact is borne, most pressure is transferred to the connector shell through the pressure cover, and a small part of pressure is transmitted to the shell through the structure glue and the pressure -bearing plate, effectively avoids the glass child stress cracking, realizes glass seal, and the purpose that the pressure -bearing plate and structure glue bear pressure.

Description

Technical Field

[0001] This utility model relates to a sealed connector with air pressure resistance. Background Technology

[0002] Currently, longitudinal sealing structures are widely used in connector mounting terminals, typically in scenarios requiring pressure isolation between the inside and outside of mounting panels. Common longitudinal sealing structures include glass sintering, injection molding, ceramic-glass sealing, vulcanization, and potting. Alternatively, longitudinal sealing can be achieved by using O-rings as insulating plates, contact terminals, and metal housing gap compensation. While glass sintering can achieve longitudinal sealing, it is prone to cracking under transient high-pressure impacts, leading to contact terminal splashing and seal leakage. Injection molding and ceramic-glass sealing, while able to withstand high-pressure impacts, cannot meet design requirements under constraints such as small spacing and dimensions in connectors. Vulcanization and O-ring gap compensation have limitations in the long-term lifespan of their seals in special media environments. Potting, through plasma treatment, can also achieve some longitudinal sealing, but it is mainly used in scenarios with low pressure and minimal temperature impact. This invention primarily employs glass sintering. For example, CN218828111U discloses an electrical connector buffer device that buffers the vibration received during the connector connection process by installing a transverse shock-absorbing component on the connector, and filling a rubber block between the shock-absorbing component and the connector to further eliminate the vibration force between the connector and the shock-absorbing component. However, its shock-absorbing component wraps the pin inside, which requires the shock-absorbing component to be disassembled when wiring, increasing the difficulty of its assembly. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a sealed connector with air pressure resistance.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides a sealed connector with air pressure resistance, including a connector housing; one end of the connector housing is machined with a slot, and a plurality of pins are evenly installed in the other end. The middle part of the pins is fixed in the connector housing by glass beads. One end of the pin extends into the slot and the other end extends out of the connector housing. A circular groove is machined on the side wall of the connector housing, and an air pressure buffer component is provided in the circular groove. A pressure-resistant cover is also installed on the outside of the connector housing to cover the pins extending out of the connector housing.

[0006] The pneumatic buffer assembly includes a pressure plate, which is installed in a circular groove. The pressure plate has through holes machined to correspond to the positions of the pins. An annular groove is also machined on the outer sidewall of the circular groove and filled with structural adhesive.

[0007] The pressure-resistant cover is machined with a wire hole opposite to the pin position. A support plate that fits against the connector housing is also fixed on the outer wall of the opening of the pressure-resistant cover. The support plate is fixed to the connector housing by fixing screws.

[0008] The slot includes a docking groove, a limiting groove, and an interface connected in sequence with increasing diameters. A stepped structure is formed between the docking groove and the limiting groove. The limiting groove and the interface are smoothly connected by an inclined surface, and a slot for connecting to the interface is machined at the conical surface. The diameter of the slot is larger than that of the interface. The pin is placed in the docking groove.

[0009] The sidewall of the docking groove is uniformly machined with several guide strips parallel to its center line.

[0010] The bottom of the docking groove is also machined with a sealing groove with a diameter larger than that of the docking groove, and a sealing ring is installed in the sealing groove.

[0011] The sealing ring has a frustum-shaped groove on one side relative to the mating groove, and an annular groove on the other side.

[0012] The slot has a flared opening.

[0013] The connector housing also has an air gap groove machined on its mating surface.

[0014] The beneficial effects of this utility model are as follows: Insulation and sealing between the contact terminals and the connector housing are achieved by controlling the glass sintering process. A pressure plate and structural sealant are set at the pressure-bearing front end of the glass element. When subjected to air pressure impact, most of the pressure is transferred to the connector housing through the pressure shield, and a small portion of the pressure is transmitted to the housing through the structural sealant and the pressure plate. This effectively prevents the glass element from cracking under stress and achieves the purpose of glass sealing and pressure bearing by the pressure plate and structural sealant. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the pressure-resistant cover structure of this utility model.

[0017] Reference numerals: 1-Pin, 2-Structural adhesive, 3-Pressure plate, 4-Glass, 5-Sealing ring, 51-Annular groove, 52-Frustum groove, 6-Connector housing, 61-Mating groove, 62-Limiting groove, 63-Slot, 64-Air gap groove, 65-Interface, 66-Flange, 67-Guide strip, 7-Pressure cover, 71-Wire hole, 72-Support plate, 8-Fixing screw. Detailed Implementation

[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0019] This utility model provides a sealed connector with air pressure resistance, including a connector housing 6; one end of the connector housing 6 is machined with a slot, and a plurality of pins 1 are evenly installed in the other end. The middle part of the pins 1 is fixed in the connector housing 6 by a glass piece 4. One end of the pin 1 extends into the slot and the other end extends out of the connector housing 6. A circular groove is machined on the side wall of the connector housing 6, and an air pressure buffer component is provided in the circular groove. A pressure-resistant cover 7 is also installed on the outside of the connector housing 6 to cover the pins 1 extending out of the connector housing 6.

[0020] like Figure 1 As shown, the connector can withstand 80MPa transient impact through the air pressure buffer assembly and the pressure-resistant cover. The pressure-resistant cover acts as a pressure transfer device. The axial and radial forces on the pressure-resistant cover are resisted by the strength of the pressure-resistant cover material itself, preventing the pressure from being transmitted laterally to the inside. The pressure-resistant cover is fixed to the connector housing with screws, so that the end face fit gap is very small and the cross-sectional area through which gas can pass is negligible, further preventing the pins from being subjected to lateral impact force and realizing the lateral pressure transfer function.

[0021] Furthermore, the air pressure buffer assembly includes a pressure plate 3, which is installed within a circular groove. The pressure plate 3 has through holes machined on it, corresponding to the position of the pin 1. An annular groove is also machined on the outer sidewall of the circular groove and filled with structural adhesive 2. After the pressure plate and pin are installed inside the connector housing, axial positioning is achieved by injecting structural adhesive. The structural adhesive is an epoxy sealing material with good flowability, structure after curing, and sealing properties. Its own flowability allows it to fill the gap between the pressure plate and the connector housing, achieving a seal. The connector housing has an annular groove, and after the structural adhesive cures, it possesses longitudinal pressure-bearing capacity. The sintered rear end face of the glass element is lower than the mating end face between the connector housing and the pressure plate. When impacted at the left end, the cured structural adhesive can transfer most of the force to the connector housing through the annular groove and the pressure plate, preventing the sintered glass element from directly bearing the force.

[0022] The pressure shield 7 has a wire hole 71 that is opposite to the position of the pin 1. The outer wall of the opening of the pressure shield 7 is also fixed with a support plate 72 that fits against the connector housing 6. The support plate 72 is fixed to the connector housing 6 by fixing screws 8.

[0023] Furthermore, the slot includes a mating groove 61, a limiting groove 62, and an interface 65 connected in sequence with increasing diameters. The mating groove 61 and the limiting groove 62 form a stepped structure to limit the mating depth between the pin and the socket, preventing the pin from going too deep into the socket and causing damage to the pin and the socket. The limiting groove 62 and the interface 65 are smoothly connected by a bevel, which facilitates the insertion of the limiting platform on the outer wall of the socket. The conical surface is machined with a retaining groove 63 that connects to the interface 65. The diameter of the retaining groove 63 is larger than that of the interface 65. The retaining groove cooperates with the rubber protrusion on the outer wall of the socket to ensure a stable connection of the connector. The mating groove 61 is used for the mating of the pin and the socket.

[0024] Furthermore, several guide strips 67 parallel to its center line are evenly machined on the side wall of the docking groove 61 to ensure that the connector will not rotate or shake during the docking process of the pin and the socket.

[0025] Furthermore, a sealing groove with a diameter larger than that of the docking groove 61 is also machined at the bottom of the docking groove 61, and a sealing ring 5 is installed in the sealing groove to ensure that the pin and the socket are not affected by the outside.

[0026] Furthermore, the sealing ring 5 has a frustum-shaped groove 52 on one side relative to the mating groove 61 and an annular groove 51 on the other side. After the connector is mated, the protective shell around the socket squeezes the sealing ring. The annular groove leaves room for the squeeze, so that the inner wall of the frustum-shaped groove 52 can fit tightly against the protective shell to form a seal after the squeeze.

[0027] Furthermore, the slot opening is provided with a flared opening 66, which facilitates the connection between the connector and the device.

[0028] Furthermore, an air gap groove 64 is also machined on the mating surface of the connector housing 6. Since this connector is used in an environment with air pressure, the air gap groove can prevent the mating surface of the connector from sticking and being sucked tightly against the opposite surface of the device.

Claims

1. A sealed connector with air pressure resistance, comprising a connector housing (6), characterized in that: The connector housing (6) has a slot at one end and a number of pins (1) evenly installed at the other end. The middle part of the pins (1) is fixed in the connector housing (6) by glass beads (4). One end of the pins (1) extends into the slot and the other end extends out of the connector housing (6). A circular groove is machined on the side wall of the connector housing (6). A pneumatic buffer assembly is provided in the circular groove. A pressure-resistant cover (7) is also installed outside the connector housing (6) to cover the pins (1) that extend out of the connector housing (6).

2. The sealed connector with air pressure resistance according to claim 1, characterized in that: The air pressure buffer assembly includes a pressure plate (3), which is installed in a circular groove. The pressure plate (3) has a through hole that is opposite to the position of the pin (1). An annular groove is also processed on the outer side wall of the circular groove and filled with structural adhesive (2).

3. The sealed connector with air pressure resistance according to claim 1, characterized in that: The pressure shield (7) has a wire hole (71) that is opposite to the position of the pin (1). The outer wall of the opening of the pressure shield (7) is also fixed with a support plate (72) that fits against the connector housing (6). The support plate (72) is fixed to the connector housing (6) by fixing screws (8).

4. The sealed connector with air pressure resistance according to claim 1, characterized in that: The slot includes a docking groove (61), a limiting groove (62), and an interface (65) connected in sequence with increasing diameters. A stepped structure is formed between the docking groove (61) and the limiting groove (62). The limiting groove (62) and the interface (65) are smoothly connected by an inclined surface, and a slot (63) connected to the interface (65) is machined at the conical surface. The diameter of the slot (63) is larger than that of the interface (65). The pin (1) is placed in the docking groove (61).

5. The sealed connector with air pressure resistance according to claim 4, characterized in that: The sidewall of the docking groove (61) is uniformly machined with several guide strips (67) parallel to its center line.

6. The sealed connector with air pressure resistance according to claim 5, characterized in that: The bottom of the docking groove (61) is also machined with a sealing groove with a diameter larger than that of the docking groove (61), and a sealing ring (5) is installed in the sealing groove.

7. The sealed connector with air pressure resistance according to claim 6, characterized in that: The sealing ring (5) has a frustum-shaped groove (52) on one side opposite to the mating groove (61) and an annular groove (51) on the other side.

8. The sealed connector with air pressure resistance according to claim 1, characterized in that: The slot has a flared opening (66).

9. The sealed connector with air pressure resistance according to claim 1, characterized in that: The connector housing (6) also has an air gap groove (64) machined on its mating surface.

Images