A sealed high speed connector

Abstract

The utility model belongs to the technical field of connector, provide a kind of sealing type high-speed connector, including shell and the base fixed in the shell inside, the shell has the insertion face and fixed surface on, the insertion face and fixed surface all are provided opening, the shell is fixed on printed board by fixed surface surface mount, and the fixed surface is provided with the sealing washer surrounding base, the insertion face is provided with sealing ring or in the completion insertion and sealing ring contact. The cableless connection between the printed board of the application improves the miniaturization advantage, adopts the structure of multipoint sealing to improve the overall sealing performance, realizes the reliable connection of digital signal under harsh environment.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and in particular relates to a sealed high-speed connector. Background Technology

[0002] Connectors are commonly used in electronic information control to transmit various electrical signals. In some special application scenarios, there are extremely high requirements for the environmental adaptability and reliability of electronic equipment, such as stable operation under extreme temperature, humidity, vibration and shock conditions.

[0003] Many printed circuit boards (PCBs) exist in complex control equipment. Signals need to be transmitted between different PCBs. Traditionally, cables are used to connect and transmit signals. However, due to factors such as the need for wiring and cable routing, this limits the miniaturization of the equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application proposes a sealed high-speed connector, the specific technical solution of which is as follows:

[0005] A sealed high-speed connector includes a housing and a base fixed inside the housing. The housing has a mating surface and a fixing surface, and both the mating surface and the fixing surface are provided with openings. The housing is fixed to a printed circuit board by mounting the fixing surface, and a sealing gasket surrounding the base is provided on the fixing surface. A sealing ring is provided on the mating surface or contacts the sealing ring when mating is completed.

[0006] Optionally, the insertion surface and the fixing surface are parallel or perpendicular to each other.

[0007] Optionally, a guide pin or guide sleeve is provided on the insertion surface.

[0008] In one specific embodiment, the insertion surface and the fixing surface are relatively parallel, and a guide pin is provided on the insertion surface.

[0009] Optionally, the housing has a through hole that extends through the insertion surface and the fixing surface, and the guide pin is fixed to the insertion surface by a screw located on the fixing surface.

[0010] Optionally, the screw is locked via a threaded connection between the printed circuit board and the guide pin.

[0011] Optionally, the insertion surface has a shaped groove that coincides with the through hole, and the side wall of the guide pin has a fitting part that fits into the shaped groove. When the screw is connected and locked to the guide pin, the fitting part is embedded in the shaped groove to restrict the rotation of the guide pin.

[0012] Optionally, the housing has a cavity with a protrusion on the inner wall of the cavity. The cavity between the protrusion and the fixing surface is used to encapsulate the base. When the insertion is completed, the inner wall of the cavity between the protrusion and the insertion surface contacts and compresses the sealing ring for insertion sealing.

[0013] In another specific embodiment, the insertion surface and the fixing surface are perpendicular to each other, and a guide sleeve is provided on the insertion surface.

[0014] Optionally, the insertion surface has a mounting hole and a locking hole, and the guide sleeve is embedded in the mounting hole and the edge of the guide sleeve is pressed by a screw in the locking hole to fix the guide sleeve.

[0015] Optionally, the housing has a cavity, and the cavity has auxiliary openings on the opposite side of the insertion surface and the adjacent side of the fixing surface to accommodate the base. The inner wall of the cavity has a stepped surface that abuts against and restricts the base, and a cover plate is provided at the auxiliary opening.

[0016] Optionally, a sealing strip is provided between the contact surfaces of the cover plate and the outer shell.

[0017] Optionally, the mating surface has a protruding mating portion, and the sealing ring is fitted onto the mating portion.

[0018] Optionally, screws and / or positioning posts are provided on the fixing surface.

[0019] The beneficial effects of this utility model are as follows:

[0020] Cableless connections between printed circuit boards (PCBs) enhance miniaturization. Connectors are used to directly connect to PCBs and link adjacent PCBs, eliminating the need for traditional cables. This saves space required for cable routing and improves integration. Furthermore, based on the characteristics of connectors, sealing gaskets are placed at the connection points between the connectors and PCBs, and sealing rings are placed on the contact surfaces of mating male and female connectors. This improves overall sealing performance, ensuring reliable digital signal connections even in harsh environments and protecting the internal electrical contacts and circuits of the connectors from external environmental influences. Attached Figure Description

[0021] Figure 1 This illustrates the application of connectors in the connection of parallel printed circuit boards;

[0022] Figure 2 This illustrates the application of connectors in vertical printed circuit board connections;

[0023] Figure 3 The diagram shown is a schematic representation of the connector with a straight structure from one perspective.

[0024] Figure 4 The diagram shown is a schematic representation of the connector from a second perspective;

[0025] Figure 5 The diagram shown is a partial structural schematic of the outer casing.

[0026] Figure 6 The diagram shown is a schematic representation of the connector with a bent structure from one perspective.

[0027] Figure 7 The diagram shown is a schematic representation of the connector with a bent structure from another perspective.

[0028] Figure 8 The diagram shown is a partial structural schematic of the second outer shell;

[0029] Figure 9 The diagram shown is a schematic of the fixing structure of the guide sleeve on the outer shell 2;

[0030] Figure 10 The diagram shows the fixing structure of the upper cover plate of the outer shell. Detailed Implementation

[0031] In the following description, certain specific details are set forth to provide a thorough understanding of various embodiments. However, those skilled in the art will understand that the present invention can be practiced without these details. In other instances, well-known structures have not been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments. Unless the context otherwise requires, throughout the specification and appended claims, the word "comprising" shall be interpreted in an open-ended, inclusive sense, i.e., as "including but not limited to".

[0032] like Figure 1 and 2 The diagram shown illustrates the application states of the connector of this application, including applications connecting parallel printed circuit boards (PCBs) and non-parallel PCBs. Typically, non-parallel PCB connections are those connecting perpendicular PCBs. Figure 1 The image shows an application of parallel printed circuit board connections. Figure 2 The image shows a connection application for a vertical printed circuit board.

[0033] Figure 1 and 2 In the process, printed circuit board 10b and printed circuit board 20b are connected to each other without cables through connector 10a and connector 20a. Connector 10a is fixed and electrically connected to printed circuit board 10b, and connector 20a is fixed and electrically connected to printed circuit board 20b. Connector 10a and connector 20a are a pair of mating male and female connectors, that is, one is a male connector and the other is a female connector.

[0034] Connector 10a and connector 20a can be high-speed connectors to enable high-speed signal transmission between boards.

[0035] Combination Figure 1 and Figure 2 As can be seen, due to the different installation positions of the printed circuit boards inside the equipment, the connected printed circuit boards 10b and 20b will have different positional relationships, including parallel and perpendicular positional relationships. Therefore, one of the connectors 10a and 20a will adopt a bent structure or a straight structure depending on the positional relationship of the connected printed circuit boards. The difference is that the input end of the bent structure is perpendicular to the output end, while the input end of the straight structure is collinear with the output end.

[0036] Combination Figure 1 and Figure 2 As can be seen, after connecting printed circuit boards 10b and 20b through connector 10a and connector 20a, in order to meet the sealing requirements under harsh environments, a seal should be provided at the mating surfaces of connector 10a and connector 20a, as well as at the connection between connector 10a and printed circuit board 10b and at the connection between connector 20a and printed circuit board 20b, while maintaining the sealing of connector 10a and connector 20a themselves.

[0037] In this embodiment, exemplarily, Figures 3-5 The connector 10a shown illustrates a straight structure. Figures 3-5 The example shown is a socket connector, but it is not limited to socket connectors. Figure 3 and Figure 4 This is a schematic diagram of connector-10a in its assembled state, showing the different viewing angles. Figure 5 This is a structural schematic diagram of the part.

[0038] The basic structure of the connector 10a includes a housing 11, a base 12, and a contact. The housing 11 has a mating surface 11a and a fixing surface 11b. The mating surface 11a is used for mating with another connector, and the fixing surface 11b is used for contact when the connector is fixed with the printed circuit board 10b. Since the connector 10a has a straight structure, the mating surface 11a and the fixing surface 11b are parallel.

[0039] The interior of the outer shell 11 has a cavity 11g for fixing the base 12. The cavity 11g has openings on both the insertion surface 11a and the fixing surface 11b to ensure that the contacts on the base 12 are exposed after the base 12 is fixed. The contacts are arranged and fixed on the base 12 for electrical conduction after insertion to transmit electrical signals.

[0040] The inner wall of cavity 11g has a protrusion 11c, which allows base 12 to enter cavity 11g from the opening of fixed surface 11b. After contacting the protrusion 11c, it is restricted at the protrusion 11c, thereby fixing base 1 with printed circuit board 10b.

[0041] Additionally, it should be noted that the protrusion 11 and the mating surface 11a should maintain a certain distance, so that after the base 12 is fixed, part of the inner wall of the cavity 11g is exposed. During the mating process with the connector, the inner wall of the cavity 11g will contact the mating connector housing, and a sealing ring will be set on the contact surface between the two to achieve sealing control during the connection process. Since the cavity 11g is a recessed structure, it is not convenient to fix the sealing ring. Therefore, the sealing ring will be fitted onto the outer wall of the protruding structure of the mating connector.

[0042] A guide pin 14 is also fixed on the outer casing 11. The guide pin 14 is used to assist in guiding the insertion process, so as to achieve blind insertion and foolproof insertion purposes. The outer casing 11 is provided with a through hole 11d that penetrates the fixing surface 11b and the insertion surface 11a. After one end of the guide pin 14 is inserted into the through hole 11d, it is locked and fixed to the outer casing 11 by thread engagement with the screw 15. The end of the guide pin 14 that is inserted into the through hole 11d is correspondingly provided with an internal thread to engage with the screw 15.

[0043] In conjunction with the aforementioned guide pin 14 fixing structure, in this application, since the screw 15 locks the guide pin 14 from the fixing surface 11b, the printed circuit board 10b is also locked and fixed to the connector 10a by the screw 15. At this time, the fixing surface 11b is attached to the printed circuit board 10b.

[0044] The insertion surface 11a also has a shaped groove 11e that coincides with the through hole 11d. The corresponding guide pin 14 has a fitting part 14a that fits into the shaped groove 11e. During the locking process by the screw 15, the fitting part 14a is embedded in the shaped groove 11e to prevent the guide pin 14 from rotating, and better fits the screw 15 to tighten.

[0045] The shape of the irregular groove 11e is not particularly limited, as long as it is not circular, such as... Figure 5 The direction given in the middle, and the irregular groove 11e and the through hole 11d do not need to be set as coaxial, only need to be partially overlapped.

[0046] A sealing gasket 16 is also provided on the fixed surface 11b. When the printed circuit board 10b and the connector 10a are locked and fixed by the screw 15, the sealing gasket 16 is located between the two and deformed under pressure to seal the contact surface.

[0047] As an alternative implementation, a boss 11f is formed on the fixed surface 11b, and the boss 11f forms a stepped surface with the outer shell 11 so that the sealing gasket 16 can be fitted onto the outside of the boss 11f.

[0048] In this embodiment, exemplarily, Figures 6-10 The connector 20a shown is an example of a bent structure. Figures 6-10 The example shown is a plug connector, and the second connector 20a can be mated with the first connector 10a, but it is not limited to a plug connector. Figure 6 and Figure 7 This is a schematic diagram of connector 20a in its assembled state, showing the different viewing angles. Figures 8-10 This is a structural schematic diagram of the part.

[0049] The basic structure of connector 20a includes housing 21, base 22 and contact 2. Housing 21 has a mating surface 21a and a fixing surface 21b. The mating surface 21a is used for mating with another connector (connector 10a), and the fixing surface 21b is used for contact when fixed with printed circuit board 20b. Since connector 20a has a bent structure, the mating surface 21a and the fixing surface 21b are perpendicular.

[0050] The inner cavity of the outer shell 21 has a cavity 21g for fixing the base 22. Since the connector 20a is a bent structure, in addition to having openings on the insertion surface 21a and the fixing surface 21b, the cavity 21g also has an opening on the opposite side of the insertion surface 21a that communicates with the fixing surface 21b, so that the base 22 can be inserted into the cavity 21g from the opposite side of the insertion surface 21a and fixed. After the base 22 is fixed, the contact members 2 on it are exposed. The contact members 2 are arranged and fixed on the base 22 for electrical conduction after insertion to transmit electrical signals.

[0051] The inner wall of cavity 21g has a stepped surface 21c, which allows base 22 to be inserted into cavity 21g from the side opposite to the insertion surface 21a. After contacting the stepped surface 21c, it is restricted at the stepped surface 21c, thereby achieving the purpose of fixation.

[0052] To accommodate the cavity 11g of the socket, the insertion surface 21a of the outer shell 21 has a protruding mating part 21h. The protrusion distance of the mating part 21h should match the depth of the exposed cavity 11g. During the mating process, the mating part 21h of the outer shell 21 penetrates into the cavity 11g of the outer shell 11. At the same time, a sealing ring 23 is fitted on the outside of the mating part 21h, and a sealing structure is formed on the contact surface of the connector 20a and the connector 10a by the sealing ring 23.

[0053] A guide sleeve 24 is also fixed on the outer casing 21. The guide sleeve 24, in conjunction with the guide pin 14, provides auxiliary guidance during insertion to achieve blind insertion and foolproof insertion purposes. The insertion surface 21a of the outer casing 21 is provided with a mounting hole 21d (or groove) and a locking hole 21e. After the guide sleeve 24 is inserted into the mounting hole 21d, the screw 25 is screwed into the locking hole 21e on the side of the guide sleeve 24. The head of the screw 25 presses against the edge of the guide sleeve 24 to lock and fix the guide sleeve 24 to the outer casing 21. To avoid affecting the insertion, both the mounting hole 21d and the locking hole 21e are countersunk holes.

[0054] To accommodate the fixed base 22, a cover plate 26 is provided on the opposite side of the insertion surface 21a and is connected to the outer shell 21 by means of screw fastening. The cover plate 26 fixes the base 22 against the mating step surface 21c, while exposing the contact part of the base 22 in the opening of the fixed surface 21b.

[0055] The cover plate 26 also has a groove 26a, in which a sealing strip 26c is embedded. The sealing strip 26c is pressed together by screws to ensure the seal between the cover plate 26 and the outer shell 21. The outer shell 21 is also provided with a corresponding through hole 26b for the matching screws.

[0056] On the fixed surface 21b, there is also a sealing gasket 27 and a screw 28. When the printed circuit board 20b and the connector 20a are locked and fixed by the screw 28, the sealing gasket 27 is located between the two and is deformed under pressure to seal the contact surface.

[0057] Similar to connector 10a, sealing gasket 27 can also be fixed by providing a boss structure on fixing surface 21b.

[0058] In addition, the positioning post 29 is fixed on the fixing surface 21b of the outer shell 21 by interference fit, so as to accurately position the connector 20a and the printed circuit board 20b.

[0059] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A sealed high-speed connector, comprising a housing and a base fixed inside the housing, characterized in that, The housing has a plug-in surface and a fixing surface, and both the plug-in surface and the fixing surface are provided with openings. The housing is fixed to the printed circuit board by the fixing surface, and a sealing gasket surrounding the base is provided on the fixing surface. A sealing ring is provided on the plug-in surface or comes into contact with the sealing ring when the plug-in is completed.

2. The sealed high-speed connector according to claim 1, characterized in that, The insertion surface and the fixing surface are either parallel or perpendicular to each other.

3. A sealed high-speed connector according to claim 1, characterized in that, The insertion surface is provided with a guide pin or guide sleeve.

4. A sealed high-speed connector according to claim 1, characterized in that, The insertion surface and the fixing surface are relatively parallel, and a guide pin is provided on the insertion surface.

5. A sealed high-speed connector according to claim 4, characterized in that, The outer casing has a through hole that passes through the insertion surface and the fixing surface. The guide pin is fixed to the insertion surface by a screw set on the fixing surface. The screw is locked to the guide pin by a threaded connection between the printed circuit board and the guide pin.

6. A sealed high-speed connector according to claim 5, characterized in that, The insertion surface has a shaped groove that coincides with the through hole, and the side wall of the guide pin has a fitting part that fits into the shaped groove. When the screw is connected and locked to the guide pin, the fitting part is embedded in the shaped groove to restrict the rotation of the guide pin.

7. A sealed high-speed connector according to claim 4, characterized in that, The outer shell has a cavity with a protrusion on the inner wall of the cavity. The cavity between the protrusion and the fixing surface is used to encapsulate the base. When the insertion is completed, the inner wall of the cavity between the protrusion and the insertion surface contacts and compresses the sealing ring for insertion sealing.

8. A sealed high-speed connector according to claim 1, characterized in that, The insertion surface and the fixing surface are perpendicular to each other, and a guide sleeve is provided on the insertion surface; the insertion surface has a mounting hole and a locking hole, and the guide sleeve is embedded in the mounting hole and the edge of the guide sleeve is pressed by a screw in the locking hole to fix the guide sleeve.

9. A sealed high-speed connector according to claim 8, characterized in that, The housing has a cavity, and the cavity has auxiliary openings on the opposite side of the insertion surface and the adjacent side of the fixing surface to accommodate the base. The inner wall of the cavity has a stepped surface that abuts against and restricts the base, and a cover plate is provided at the auxiliary opening.

10. A sealed high-speed connector according to claim 9, characterized in that, A sealing strip is provided between the contact surfaces of the cover plate and the outer shell; the insertion surface has a protruding insertion part, and the sealing ring is fitted on the insertion part; screws and / or positioning pins are provided on the fixing surface.

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