Sealed plug-in connector

Abstract

The invention relates to a sealing plug-in connector for an electro-static pressure servo mechanism, which is used for connecting an electric module and an electrical module of the electro-static pressure servo mechanism, and comprises a sealing socket, a plug-in plug and a guide positioning ring, a contact element mounting hole is encapsulated in the sealing socket through sintered glass, an isolation sealing structure is formed on two sides of the sealing socket through a contact element in the center of a single-hole sintered glass fixing hole, and the contact elements are arranged on the plug-in plug in the same layout mode as the sealing socket; the sealing socket and the plug-in plug are connected with the contact piece in a linear plug-in connection mode. The guiding and positioning ring is connected with the sealing socket in a matched mode, is fixed at the circumferential position, is connected with the plug-in plug in a matched mode at the same time, and plays a guiding and positioning role when the sealing socket and the plug-in plug are plugged in a matched mode.

Description

Technical Field

[0001] This invention relates to a sealed mating connector, and more particularly to a sealed mating connector for an electrostatic servo mechanism, belonging to the field of electrical connectors used in electric products. Background Technology

[0002] Electrostatic servo mechanisms have become the main actuators in the aerospace field, often employing an integrated modular design approach. This involves electrical control and cable connections between the electric and electrical modules. Currently, there are two main approaches: Method 1: Electrical modules such as control drivers are designed as independent physical modules, which are connected to the electric modules via long cables with connectors.

[0003] Method 2: The control driver and servo mechanism are integrated into one design. The control socket of the motor and other electric modules is soldered with loose wires, which are then connected to the relevant ports of the control driver and other electrical modules.

[0004] Both of the above methods have certain drawbacks. Method 1 cables are susceptible to external electromagnetic interference, leading to unstable servo mechanism control. Method 2 requires individual soldering or connection of loose wires, increasing wiring space and making disassembly and assembly cumbersome and difficult, resulting in a waste of structural space and material resources. Therefore, there is an urgent need for a direct-plug connector to enable direct connection between electric modules such as motors and electrical modules such as control drivers in the servo mechanism, meeting the requirements of sealing liquid or gas cavities and the high integration design of the servo mechanism. Current product offerings include: The patent application CN 205863577 U, entitled "A Modular Mating Connector," proposes a modular mating connector, including a housing and related connecting parts and guides. This invention has a rectangular shape, with a long protruding guide post structure on the housing surface, resulting in poor manufacturability and difficulty in adding a gas-liquid sealing structure. Therefore, it cannot be applied to applications requiring sealed mating, such as motor pumps or servo mechanisms. Summary of the Invention

[0005] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide a sealed mating connector that solves the problems of the inability to seal the inner cavity of the electric module, the difficulty of wiring and disassembly when connecting electric modules and electrical modules. It meets the requirements of sealing the inner cavity of the connected products and quick mating installation. This structure has wide applicability and simple structure, and can greatly improve product production efficiency.

[0006] The solution of the present invention is: a sealed mating connector for an electrostatic servo mechanism, used to connect the electric module and the electrical module of the electrostatic servo mechanism, the sealed mating connector including a sealed socket, a mating plug, and a guide positioning ring; The sealed socket has a contact mounting hole encapsulated by sintered glass, and the contact in the center of the hole is fixed by a single-hole sintered glass, so that the two sides of the sealed socket form an isolation and sealing structure. The plug adopts the same layout of contacts as the sealed socket. The sealed socket and the plug are connected to the contacts by a straight-line plug-in connection. The guide positioning ring is connected to the sealed socket and fixed in the circumferential position. It is also connected to the plug and plays a guiding and positioning role when the sealed socket and the plug are plugged in.

[0007] Preferably, the sealed socket includes a sealed socket housing, M large male contacts, N small male contacts, sintered sealing glass, and an insulating gasket, wherein M and N are both greater than or equal to 1; wherein: The sealed socket housing is a cylindrical shell structure with an internal base. The base has M+N contact mounting holes. Sintered sealing glass is filled into the contact mounting holes. M male large contacts and N male small contacts are located in the center of the through hole. The male large and small contacts are fixed by the sintered sealing glass. An insulating pad is installed on the wire bonding side of the sealed socket to insulate the bottom surface of the base cavity.

[0008] Preferably, the outer side of the sealed socket housing is provided with an axial sealing groove to form an external sealing structure.

[0009] Preferably, the plug-in connector includes a plug housing, M large female contacts, N small female contacts, a plug core, and a core fixing screw sleeve, where M and N are both greater than or equal to 1. M large female contacts and N small female contacts are arranged inside the plug core. The plug core is positioned with the plug housing by a flat key structure and then fastened by a core fixing screw.

[0010] Preferably, the guide positioning ring is an inner stepped ring structure, and the inner stepped ring is connected to the outer circle of the sealing socket housing.

[0011] Preferably, the outer periphery of the sealing socket housing is provided with a flat structure, and the inner circle of the guide positioning ring is provided with a flat structure, which cooperates with the flat structure on the outer periphery of the sealing socket housing to fix the guide positioning ring and the sealing socket in a circumferential position.

[0012] Preferably, the plug housing of the plug-in connector is provided with a main and secondary keyway on the outer circle, and the inner surface of the inner stepped ring of the guide positioning ring is provided with a main and secondary flat key, which is connected to the main and secondary keyway on the outer circle of the plug housing of the plug-in connector.

[0013] Preferably, the main and auxiliary flat keys protrude a portion of the end face of the guide positioning ring, and the protruding portion is chamfered.

[0014] Preferably, the protruding portion is color-coded.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: (1) The present invention forms an external sealing structure by combining the sealing glass with two axial sealing grooves set on the outer circle of the sealing socket housing, so as to lead the cable with pressure oil or gas in the cavity out of the cavity.

[0016] (2) The sealing socket of the present invention is provided with multiple contact mounting holes. By fixing the contact in the center of the single-hole sintered glass hole, the bonding force between the sintered glass and the sealing socket shell is enhanced, and the overall internal structural strength is improved.

[0017] (3) The present invention adopts a straight-line interlocking connection method, which is simple to operate and improves production efficiency. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the sealed mating connector according to an embodiment of the present invention; Figure 2 This is a structural diagram of the sealed socket according to an embodiment of the present invention; Figure 3 This is a structural diagram of the plug according to an embodiment of the present invention; Figure 4 This is a structural diagram of the guide positioning ring according to an embodiment of the present invention. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] This invention provides a sealed mating connector for an electrostatic servo mechanism, used to connect the electric module and the electrical module of the electrostatic servo mechanism. like Figure 1 As shown, the sealed mating connector of the present invention includes a sealed socket 1, a mating plug 2, and a guide positioning ring 3.

[0021] The sealed socket 1 has a contact mounting hole encapsulated by sintered glass, and the contact in the center of the hole is fixed by a single-hole sintered glass, so that the two sides of the sealed socket 1 form an isolation and sealing structure. The plug 2 has the same layout of contacts as the sealed socket 1. The sealed socket 1 and the plug 2 are connected by a straight-line plug-in connection. The guide positioning ring 3 is connected to the sealed socket 1 and fixed in the circumferential position. It is also connected to the plug 2 and plays a guiding and positioning role when the sealed socket 1 and the plug 2 are plugged in.

[0022] like Figure 2 As shown, the sealed socket 1 includes a sealed socket housing 4, M male large contacts 5, N male small contacts 6, sintered sealing glass 7, and an insulating gasket 8, where M and N are both greater than or equal to 1; in the figure, M is 9 and N is 20. Wherein: The sealed socket housing 4 is a cylindrical shell structure with an internal base. The base has M+N contact mounting holes, into which sintered sealing glass 7 is filled. M large male contacts 5 and M small male contacts 6 are located in the center of the through-hole and are fixed by the sintered sealing glass 7. An insulating gasket 8 is installed on the welding wire side of the sealed socket 1, providing overall insulation to the bottom surface of the base cavity and preventing short circuits between contacts caused by foreign matter. An axial sealing groove is provided on the outer side of the sealed socket housing 4 to form an external sealing structure. Three screw mounting holes are provided on the outer periphery of the sealed socket housing 4 for fixing to the connected component. A flat structure 26 of a certain length is provided on the outer periphery of the sealed socket housing 4 for self-positioning of the guide positioning ring.

[0023] like Figure 3 As shown, the plug 2 includes a plug housing 9, M large female contacts 10, N small female contacts 11, a plug core 12, and a core fixing screw sleeve 13, where M and N are both greater than or equal to 1; the layout of the large female contacts is the same as that of the large male contacts, and the layout of the small female contacts is the same as that of the small male contacts.

[0024] M large female contacts 10 and N small female contacts 11 are disposed inside the plug core 12. The plug core 12 is positioned to the plug housing 9 by a flat key structure and then fastened by a core fixing screw 13. The plug housing 9 flange is provided with 4 screw holes for fixing to the connected parts.

[0025] like Figure 4 As shown, the guide positioning ring 3 has an inner stepped ring structure, which is connected to the outer circle of the sealing socket housing 4. The inner circle of the guide positioning ring 3 has a flat structure 28, which engages with the flat structure 26 on the outer periphery of the sealing socket housing 4, fixing the guide positioning ring 3 and the sealing socket 1 in a circumferential position. The outer circle of the plug housing 9 of the plug-in plug 2 has a main and secondary keyway 27, and the inner surface of the inner stepped ring of the guide positioning ring 3 has a main and secondary flat key 29, which engages with the main and secondary keyway 27 on the outer circle of the plug housing 9 of the plug-in plug 2. The main and secondary flat key 29 protrudes a portion from the end face of the guide positioning ring 3, and the protruding portion has a chamfer. The protruding portion 30 is color-coded for easy visualization during plug insertion.

[0026] In summary, this invention employs a connector scheme where an O-ring is arranged on the outer surface of a cylinder, and an electrical connector with a glass-encapsulated and fixed contact element inside the inner hole serves as the male connector. This male connector is then directly plugged into a female connector with a similar contact element layout fixed inside the cylinder's inner hole. This linear plugging connection allows cables containing pressurized oil or gas chambers to be led out of the chambers, simplifying operation and improving production efficiency. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A sealed mating connector for an electrostatic servo mechanism, used to connect the electric module and the electrical module of the electrostatic servo mechanism, characterized in that... Includes a sealed socket (1), a plug (2), and a guide positioning ring (3); The sealing socket (1) is sealed with sintered glass through the contact mounting hole and the contact in the center of the single-hole sintered glass fixing hole, so that the sealing socket (1) forms an isolation and sealing structure on both sides. The plug (2) adopts the same layout as the sealing socket (1) to arrange the contact. The sealing socket (1) and the plug (2) are connected to the contact in a straight-line plug-in connection. The guide positioning ring (3) is connected to the sealing socket (1) and fixed in the circumferential position. At the same time, it is connected to the plug (2) and plays a guiding and positioning role when the sealing socket (1) and the plug (2) are plugged in.

2. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The sealed socket (1) includes a sealed socket housing (4), M male large contacts (5), N male small contacts (6), sintered sealing glass (7), and an insulating gasket (8), where M and N are both greater than or equal to 1; wherein: The sealed socket housing (4) is a cylindrical housing structure with an internal base. The base has M+N contact mounting holes. The sintered sealing glass (7) is filled into the contact mounting holes. M male large contacts (5) and N male small contacts (6) are located in the center of the through hole. The male large contacts (5) and male small contacts (6) are fixed by the sintered sealing glass (7). The insulating isolation pad (8) is installed on the welding wire side of the sealed socket (1) to insulate the bottom surface of the inner cavity of the base as a whole.

3. A sealed mating connector for an electrostatic servo mechanism according to claim 2, characterized in that, The outer side of the sealed socket housing (4) is provided with an axial sealing groove to form an external sealing structure.

4. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The plug (2) includes a plug housing (9), M large female contacts (10), N small female contacts (11), a plug core (12), and a core fixing screw sleeve (13), where M and N are both greater than or equal to 1; M large female contacts (10) and N small female contacts (11) are arranged inside the plug core (12). The plug core (12) is positioned with the plug housing (9) by a flat key structure and then fastened by a core fixing screw (13).

5. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The guide positioning ring (3) has an inner stepped ring structure, and the inner stepped ring is connected to the outer circle of the sealing socket housing (4).

6. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The outer periphery of the sealed socket housing (4) is provided with a flat structure (26), and the inner circle of the guide positioning ring (3) is provided with a flat structure (28), which cooperates with the flat structure (26) on the outer periphery of the sealed socket housing (4) to fix the guide positioning ring (3) and the sealed socket (1) in the circumferential position.

7. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The plug housing (9) of the plug plug (2) is provided with a main and secondary keyway (27) on the outer circle, and the inner surface of the inner stepped ring of the guide positioning ring (3) is provided with a main and secondary flat key (29), which is connected to the main and secondary keyway (27) on the outer circle of the plug housing (9) of the plug plug (2).

8. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The main and auxiliary flat keys (29) protrude from a portion of the end face of the guide positioning ring (3), and the protruding portion is chamfered.

9. A sealed mating connector for an electrostatic servo mechanism according to claim 1, characterized in that, The protruding portion (30) is color-coded.

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