Board-to-board receptacle connector and assembly thereof

Abstract

The utility model discloses a board to board socket connector and its combination, including socket connector and plug connector, wherein socket connector includes plastic base, end wall armor, socket reinforcing part, socket reinforcing part includes fixed part and connecting plate, the fixed part is inserted in the end of center column, the fixed part with connecting plate meets and is fixed on plastic base, socket reinforcing part still includes a pair of with the connecting plate link's embedded support, embedded support is located in short side structure and is along long side structure bending extension, be equipped with end wall contact part for with plug connector meets on embedded support. In order to utilize board to board socket connector both sides space, through increasing rigid end wall contact part in socket reinforcing part, end wall contact part can increase plug -in and plug -out force adjustment flexibility, also increase metal section, and then improve the through -flow capacity, satisfy big current through -flow and high reliability bidirectional gain.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a board-to-board socket connector and its assembly. Background Technology

[0002] As the power density of electronic products increases (such as servers, base stations, high-performance computing, electric vehicles, etc.), board-to-board connectors need to carry greater current. Traditional board-to-board connector contacts have limited metal cross-sectional area, leading to increased resistance and severe heat generation, which limits the maximum current they can carry and may cause overheating, performance degradation, or even failure. Furthermore, connectors require sufficient positive force to ensure low resistance and reliable electrical connection at the contact points, which usually results in high insertion and extraction forces. Excessive insertion and extraction forces can cause difficulty in insertion and extraction, or even damage the connector or PCB. Insufficient insertion and extraction forces may lead to poor contact, especially in vibration environments. Utility Model Content

[0003] This application provides a board-to-board socket connector and its assembly, which can meet the requirements of high current transmission and high reliability.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a board-to-board socket connector, comprising:

[0005] A plastic base, comprising a base plate, a central column disposed on the base plate, and a frame structure disposed on the base plate surrounding the central column, wherein the central column and the frame structure form an insertion space, and the frame structure comprises a pair of oppositely arranged long side structures and a pair of oppositely arranged short side structures, wherein a plurality of socket terminals are provided between the long side structures and the central column.

[0006] The endwall armor includes a protective frame and protective wings. The protective frame wraps around the outside of the short side structure, and the protective wings are disposed on both sides of the protective frame and cover the long side structure.

[0007] The socket reinforcement includes a fixing part and a connecting plate. The fixing part is inserted into the end of the central column, and the fixing part is connected to the connecting plate and fixed on the plastic base.

[0008] The socket reinforcement also includes at least one embedded bracket connected to the connecting plate. The embedded bracket is disposed within the short side structure and extends along the long side structure by bending. The embedded bracket is provided with an end wall contact portion for engaging with the plug connector.

[0009] As a further technical solution, the embedded bracket includes a first sidewall disposed within the short side structure and a second sidewall disposed within the long side structure. The first sidewall is perpendicularly connected to the rear end of the connecting plate, and an end wall contact portion is provided above the second sidewall. The end wall contact portion is fastened to the long side structure.

[0010] As a further technical solution, the lower part of the second sidewall is provided with several welded parts exposed to the bottom surface of the plastic base.

[0011] As a further technical solution, the end wall contact portion is located on the long side structure between the protective wing and the socket terminal.

[0012] As a further technical solution, grooves are provided on the bottom plates at both ends of the central column along the length direction, the connecting plate is disposed in the grooves, and the connecting plate is partially exposed downward to the lower surface of the bottom plate.

[0013] As a further technical solution, a protrusion is provided in the middle of the groove, and an opening is provided in the middle of the connecting plate. The protrusion is inserted into the opening so that the socket reinforcement fits tightly with the base plate.

[0014] As a further technical solution, the socket reinforcement also includes a pair of elastic arms that are connected to the connecting plate. At least a portion of the elastic arms can be elastically displaced along the direction of the short side structure. The end of the elastic arm has a contact portion that at least partially protrudes into the insertion space along the direction of the short side structure. The elastic arms are located below the protective wing.

[0015] As a further technical solution, the fixing part has an inverted U-shaped structure, and the fixing part is exposed in the insertion space.

[0016] As a further technical solution, the end wall contact portion is a rigid contact structure.

[0017] This application also provides a connector assembly, including a board-to-board socket connector and a plug connector as described above, wherein the plug connector includes an insulating base, a plurality of pairs of plug terminals fixed on the insulating base, and end wall protective plates disposed on both sides of the insulating base.

[0018] When the socket connector and the plug connector are in the mating state, the plug terminals are electrically connected to the socket terminals, and the end wall protective plate is electrically connected to the end wall armor and the end wall contact portion.

[0019] The beneficial effects of this utility model are as follows: In order to make use of the space on both sides of the board-to-board socket connector, the socket reinforcement is reinforced with a rigid end wall contact portion. The end wall contact portion can increase the flexibility of insertion and extraction force adjustment, and at the same time increase the metal cross section, thereby improving the current carrying capacity and meeting the requirements of high current carrying capacity and high reliability bidirectional gain. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the socket reinforcement of the board-to-board socket connector in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the board-to-board socket connector in this embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the board-to-board socket connector from another perspective in an embodiment of this utility model;

[0023] Figure 4 This is a cross-sectional view of the board-to-board socket connector in an embodiment of this utility model.

[0024] Figure 5 This is an exploded view of the board-to-board socket connector in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the board-to-board plug connector in an embodiment of the present invention;

[0026] Figure 7 This is a cross-sectional structural diagram of the board-to-board connector assembly in an embodiment of the present invention;

[0027] Figure 8 This is another cross-sectional view of the board-to-board connector assembly in this embodiment of the present invention.

[0028] Figure label:

[0029] 00-Socket connector,

[0030] 1-Plastic base, 10-Central column, 11-Long side structure, 12-Short side structure, 13-Base plate, 130-Protrusion, 14-Interlocking space, 15-Groove;

[0031] 2-Socket terminal, 3-End wall armor, 30-Protective frame, 301-Contact protrusion, 31-Protective wing;

[0032] 4-Socket reinforcement, 40-Connecting plate, 401-Elastic arm, 4010-Contact part, 402-Opening, 41-Fixing part, 42-Embedded bracket, 420-First side wall, 421-Second side wall, 43-End wall contact part, 44-Welding part;

[0033] 01-Plug connector,

[0034] 5-Insulating base, 6-Plug terminal, 7-End wall protection plate. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0036] This application provides a board-to-board socket connector and its assembly, solving the problems of difficult insertion and removal and inability to carry high current in existing board-to-board connectors. It should be noted that in this application, the direction of the plug connector relative to the socket connector is upward, above, upper side, upper end, top, tip, or top, while the opposite direction is downward, below, lower side, lower end, bottom, bottom, tip, or bottom.

[0037] like Figures 2 to 5 As shown, a board-to-board socket connector 00 includes a plastic base 1, which includes a base plate 13, a central post 10 disposed on the base plate 13, and a frame structure disposed on the base plate 13 surrounding the central post 10. The central post 10 and the frame structure form a mating space 14. The frame structure includes a pair of oppositely arranged long side structures 11 and a pair of oppositely arranged short side structures 12. A plurality of socket terminals 2 are provided between the long side structures 11 and the central post. An end wall armor 3 is provided outside the pair of short side structures 12 of the plastic base 1. The end wall armor 3 includes a protective frame 30 and a pair of protective wings 31. The protective frame 30 wraps around the short side structures 12. The protective wings 31 are disposed on both sides of the protective frame 30 and cover the long side structures 11. The outer surface of the protective frame 30 is provided with at least one inwardly protruding contact protrusion 301 for power distribution connection with the plug connector 01.

[0038] Combination Figure 1The plastic base 1 is further provided with a socket reinforcement 4, which includes a fixing part 41 and a connecting plate 40. The fixing part 41 is inserted into the end of the central post 10 and is connected to and fixed to the plastic base 1 with the connecting plate 40. The socket reinforcement 4 also includes a pair of embedded brackets 42 connected to the connecting plate 40. The embedded brackets 42 are located in the short side structure 12 and are bent and extended along the long side structure 11. The embedded brackets 42 are provided with end wall contact parts 43 for contacting the plug connector. The end wall contact parts are rigid contact structures, and their specific shape is not limited here. The end wall contact parts 43 can focus on providing the required mechanical support and distributing the positive force, flexibly adjusting the overall insertion and extraction force.

[0039] Specifically, each embedded bracket 42 includes a first sidewall 420 disposed within the short side structure 12 and a second sidewall 421 disposed within the long side structure 11. The first sidewall 420 is perpendicularly connected to the rear end of the connecting plate 40. An endwall contact portion 43 is provided above the second sidewall 421. The endwall contact portion 43 extends from inside the long side structure 11 and is fastened to the long side structure 11. Specifically, the endwall contact portion 43 is located on the long side structure 11 between the protective wing 31 and the socket terminal 2. Several welding portions 44 exposed on the bottom surface of the plastic base 1 are provided below the second sidewall 421. The specific number is not limited here.

[0040] By adding an embedded bracket 42, the metal cross-section can be increased. Through the end wall contact portion 43 on the socket reinforcement 4, an additional conductive path is added in parallel outside the original main contact path. This is equivalent to increasing the total effective metal cross-sectional area through which the current flows, significantly reducing the overall resistance of the connection path, thereby improving the current carrying capacity of the connector, meeting the needs of larger current transmission, and reducing heat generation caused by resistance.

[0041] Reference Figure 1 The socket reinforcement 4 also includes a pair of elastic arms 401 that are connected to the connecting plate 40. The elastic arms 401 are disposed inside the embedded bracket 42. At least a portion of the elastic arms 401 can elastically displace along the direction of the short side structure 12. The end of the elastic arms 401 is formed with a contact portion 4010 that at least partially protrudes into the insertion space 14 along the direction of the short side structure 12. The elastic arms 401 are disposed on the lower side of the protective wing 31.

[0042] As a preferred embodiment, refer to Figure 5 The center column 10 has grooves 15 on the bottom plate 13 at both ends along the length direction, and the connecting plate 40 is located in the grooves 15. The bottom plate 13 has protrusions 130 at both ends along the short side structure 12 direction of the center column 10. The connecting plate 40 has openings 402. The protrusions 130 are inserted into the openings 402 so that the socket reinforcement 4 fits tightly with the bottom plate 13.

[0043] As a preferred embodiment, refer to Figure 4 The fixing part 41 has an inverted U-shaped structure. The fixing part 41 is fastened to the end of the central column 10 and exposed in the insertion space 14. The connecting plate 40 is provided in the groove 15 for reference. Figure 3 The rear end of the connecting plate 40 protrudes downward to the lower surface of the base plate 13, and is bent upward to form the first side wall 420, which is inserted into the short side structure 12 to achieve a fixed connection between the socket reinforcement 4 and the plastic base 1.

[0044] One embodiment of this application also provides a connector assembly, including a board-to-board socket connector 00 and a plug connector 01 as described above, specifically as follows: Figure 6 The plug connector 01 includes an insulating base 5, several pairs of plug terminals 6 fixed on the insulating base 5, and end wall protective plates 7 provided on both sides of the insulating base 5.

[0045] Reference Figures 7-8 When the plug connector 01 and the socket connector 00 are in the mating state, the plug terminal 6 is electrically connected to the socket terminal 2, the end wall protection plate 7 is electrically connected to the contact portion 4010 on the end wall armor 3, and the end wall protection plate 7 is electrically connected to the end wall contact portion 43. By integrating the rigid end wall contact portion 43 onto the metal socket reinforcement 4, and electrically connecting it to the end wall protection plate 7 of the plug connector 01, the overall mechanical strength and rigidity of the board-to-board connector are significantly improved, greatly enhancing its resistance to torsion and deformation. This directly improves the long-term connection reliability and stability of the board-to-board connector during mating operations and under harsh environments such as vibration and impact.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A board-to-board socket connector, characterized in that, include: A plastic base, comprising a base plate, a central column disposed on the base plate, and a frame structure disposed on the base plate surrounding the central column, wherein the central column and the frame structure form an insertion space, and the frame structure comprises a pair of oppositely arranged long side structures and a pair of oppositely arranged short side structures, wherein a plurality of socket terminals are provided between the long side structures and the central column. The endwall armor includes a protective frame and protective wings. The protective frame wraps around the outside of the short side structure, and the protective wings are disposed on both sides of the protective frame and cover the long side structure. The socket reinforcement includes a fixing part and a connecting plate. The fixing part is inserted into the end of the central column, and the fixing part is connected to the connecting plate and fixed on the plastic base. The socket reinforcement also includes at least one embedded bracket connected to the connecting plate. The embedded bracket is disposed within the short side structure and extends along the long side structure by bending. The embedded bracket is provided with an end wall contact portion for engaging with the plug connector.

2. The board-to-board socket connector according to claim 1, characterized in that: The embedded bracket includes a first sidewall located within the short side structure and a second sidewall located within the long side structure. The first sidewall is perpendicularly connected to the rear end of the connecting plate, and an end wall contact portion is provided above the second sidewall. The end wall contact portion is fastened to the long side structure.

3. The board-to-board socket connector according to claim 2, characterized in that: The lower part of the second sidewall has several welded parts exposed to the bottom surface of the plastic base.

4. The board-to-board socket connector according to any one of claims 1-3, characterized in that: The end wall contact portion is located on the long side structure between the protective wing and the socket terminal.

5. The board-to-board socket connector according to claim 1, characterized in that: The central column has grooves on the bottom plates at both ends along its length, and the connecting plate is located in the grooves, with a portion of the connecting plate protruding downwards to the lower surface of the bottom plate.

6. The board-to-board socket connector according to claim 5, characterized in that: The groove has a protrusion in the middle, and the connecting plate has an opening in the middle. The protrusion is inserted into the opening so that the socket reinforcement fits tightly with the base plate.

7. The board-to-board socket connector according to claim 1, characterized in that: The socket reinforcement also includes a pair of elastic arms that are connected to the connecting plate. At least a portion of the elastic arms can be elastically displaced along the direction of the short side structure. The end of the elastic arm has a contact portion that at least partially protrudes into the insertion space along the direction of the short side structure. The elastic arms are located below the protective wing.

8. The board-to-board socket connector according to claim 1, characterized in that: The fixing part has an inverted U-shaped structure and is exposed within the insertion space.

9. The board-to-board socket connector according to claim 1, characterized in that: The end wall contact portion is a rigid contact structure.

10. A connector assembly, characterized in that: Includes board-to-board socket connectors and plug connectors as described in any one of claims 1-9, wherein the plug connector includes an insulating base, a plurality of pairs of plug terminals fixed on the insulating base, and end wall protective plates disposed on both sides of the insulating base; When the socket connector and the plug connector are in the mating state, the plug terminals are electrically connected to the socket terminals, and the end wall protective plate is electrically connected to the end wall armor and the end wall contact portion.

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