Board-to-board connector

Abstract

The utility model belongs to the technical field of connector, concretely relates to a board-to-board connector, including female seat, the male seat of setting of inserting female seat and a plurality of respectively setting in the male seat terminal, female seat terminal in male seat, be equipped with annular groove in female seat with the opening upward, be equipped with the island in the annular groove, the position of female seat bottom and island adjacent is equipped with a plurality of female end pin hole in the island both sides and the annular groove through, island side wall is equipped with a plurality of along island height direction extension's installation groove;Male seat is equipped with the matching groove with the opening downward, and the island is adapted to make that male seat can be inserted into female seat, and the position of male seat and matching groove adjacent still is equipped with a plurality of male end mounting hole with the through setting of matching groove, and with the through setting of male end mounting hole the snap-in groove of being located in male seat inner wall is equipped. Through the setting of above-mentioned component, not only improve the connection reliability, and female seat and male seat installation insertion convenient.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a board-to-board connector. Background Technology

[0002] With the rapid development of electronic products, board-to-board connectors, as key components for achieving electrical connections between circuit boards, face increasingly stringent performance requirements. Traditional board-to-board connectors are prone to loose terminals and poor pin contact when subjected to slight external vibrations or impacts, leading to pin misalignment, increased contact resistance, and unstable signal transmission. Even minor dimensional changes or environmental stresses can severely affect the overall performance of electronic products. For example, portable devices such as mobile phones and laptops, with their frequent movement and usage scenarios, place extremely high demands on connector reliability, making existing products difficult to adapt to.

[0003] Meanwhile, existing connector technologies lack user-friendly design, leading to frequent instances of incorrect insertion (either forward or reversed) and misaligned pins during assembly. Incorrect insertion can damage the connector itself and potentially burn out electronic components on the associated circuit board, resulting in significant economic losses and repair challenges. The insertion process relies on precise manual alignment, which is slow and prone to damage to connectors or circuit boards due to operational errors. For large-scale assembly operations, this inefficient and error-prone installation method significantly increases production costs and time, reducing overall production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a board-to-board connector, which aims to solve the technical problems of insufficient connection reliability and inconvenient installation and disassembly of existing board-to-board connectors.

[0005] To achieve the above objectives, this utility model provides a board-to-board connector, including a female connector, a male connector inserted into the female connector, and multiple male and female connector terminals respectively disposed in the male and female connectors. The female connector has an upward-opening, isosceles trapezoidal annular groove, with a central island within the annular groove. Multiple female pin holes, located on both sides of the central island and communicating with the annular groove, are provided at the bottom of the female connector adjacent to the central island. Multiple mounting grooves extending along the height of the central island are provided on the sidewalls of the central island, communicating with the female pin holes. The male connector has a downward-opening terminal that is adapted to the central island. The male connector has a mating groove, and the outline of the outer part of the mating groove is an isosceles trapezoid that matches the annular groove, so that the male connector can be inserted into the female connector. The male connector is also provided with multiple male end mounting holes that pass through the mating groove, and a limiting groove provided on the inner wall of the male connector that passes through the male end mounting holes. The male end mounting holes are provided corresponding to the female end pin holes. The end of the male end mounting hole adjacent to the side wall of the male connector is also provided with a locking groove with both ends protruding from the two ends of the male end mounting hole. The male connector terminal is provided with a locking part that is interference-fitted with the locking groove and an inclined section that is inclined towards the mating groove.

[0006] Preferably, the engaging portion has multiple notches on both sides.

[0007] Preferably, the inclined section is provided with a contraction section.

[0008] Preferably, the male connector terminal has an arc-shaped segment at its end.

[0009] Preferably, the female terminal includes a contact section, which is disposed in the mounting groove and abuts against the end of the male terminal.

[0010] Preferably, the female terminal includes a fixed section, and at least one reserved opening is provided on each side of the fixed section.

[0011] Preferably, the annular groove is provided with a plurality of auxiliary blocks fixed to the inner surface of the female seat, and the auxiliary blocks are arranged perpendicular to the bottom surface of the female seat along the height direction of the female seat.

[0012] Preferably, the width of the mounting groove is greater than the width of the limiting groove, and the limiting groove is located directly opposite the mounting groove.

[0013] Preferably, the male mounting hole is located half above the mating groove and half above the side wall of the male seat along the width direction of the male seat.

[0014] Preferably, the female end pin hole is located half below the annular groove and half below the central island along the width direction of the female seat.

[0015] The board-to-board connector provided in this embodiment of the utility model has at least one of the following technical effects:

[0016] This utility model discloses a board-to-board connector. The male connector's engaging portion features a notch design on both sides, allowing for adaptive deformation during installation. This facilitates an interference fit with the male connector's engaging groove, ensuring ease of installation and significantly enhancing the connection strength between the male and female connectors. The female connector's fixing section has a pre-reserved opening design, making it easier for the fixing section to deform and adapt when inserted into the mounting slot, ensuring a secure connection between the female connector and the female connector and effectively preventing loosening or detachment of the terminals. Furthermore, the male and female connectors are respectively positioned in a limiting groove and a mounting groove, preventing deformation when the male and female connectors come into contact, further improving the connection reliability of the male and female connectors.

[0017] This utility model discloses a board-to-board connector. The inclined section of the male connector provides preload for the contact between the male and female connectors. The arc-shaped section, as the contact section, increases contact reliability. The contraction section enhances the elastic deformation capability of the male connector, ensuring reliable contact between the male and female connectors under long-term insertion / removal or vibration conditions. It also ensures reliable contact between the male and female connectors even when assembly tolerances exist. In addition, the auxiliary block around the annular groove increases the engagement strength of the male and female connectors, further strengthening the overall connection strength after the male and female connectors are inserted, and improving vibration and impact resistance.

[0018] The board-to-board connector of this utility model has a unique fit between the female and male connectors. They can only be successfully inserted when the male and female connectors are correctly aligned. This structure avoids the risk of incorrect insertion in the right direction or misalignment of pins, reduces the probability of device damage due to misoperation, and improves assembly efficiency.

[0019] This utility model discloses a board-to-board connector in which the mating groove of the male connector and the central island and annular groove of the female connector form a nested structure. After mating, a surrounding shielding space is formed, which encloses the contact area of ​​the male and female connector terminals, effectively blocking external electromagnetic interference and reducing crosstalk between internal signals. It is especially suitable for high-frequency signal transmission scenarios and improves signal transmission stability.

[0020] This utility model discloses a board-to-board connector, in which both the male and female terminals adopt a simple structural design, requiring no complex processing technology, facilitating mass production, and helping to reduce manufacturing costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a board-to-board connector provided for an embodiment of the present utility model.

[0023] Figure 2 for Figure 1 Sectional view at point AA.

[0024] Figure 3 This is a partial view of a board-to-board connector provided for an embodiment of the present utility model.

[0025] Figure 4 This is a partial view of a board-to-board connector provided for an embodiment of the present utility model.

[0026] Figure 5 A perspective view of a male connector in a board-to-board connector provided for an embodiment of this utility model.

[0027] Figure 6 A perspective view of a male connector terminal in a board-to-board connector provided for an embodiment of this utility model.

[0028] Figure 7 A perspective view of a female connector in a board-to-board connector provided for an embodiment of this utility model.

[0029] Figure 8 This is a perspective view of a female terminal in a board-to-board connector provided for an embodiment of the present utility model.

[0030] The following are the labeling elements in the figure:

[0031] 10—Male seat 11—End cap 12—Protrusion 13—Side wall 14—End wall 15—Matching groove

[0032] 16—Male mounting hole; 17—Matching groove; 18—Limiting groove; 20—Male connector terminal; 21—Bent section

[0033] 22—Interlocking section 23—Gap 24—Inclined section 25—Contraction section 26—Arc-shaped section

[0034] 30—Female connector; 31—Central island; 32—Annular groove; 33—Male pin hole; 34—Mounting groove

[0035] 35—Auxiliary block; 40—Female terminal; 41—Contact section; 42—Fixing section; 43—Reserved opening

[0036] 44—Connecting segment. Detailed Implementation

[0037] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0041] In one embodiment of this utility model, such as Figure 1 , 2 As shown, a board-to-board connector is provided, including a male connector 10, a female connector 30 that can be inserted into the male connector 10, and a plurality of male connector terminals 20 and female connector terminals 40 respectively assembled in the male connector 10 and the female connector 30. The male connector 10 and the female connector 30 achieve mating and positioning through structural adaptation. The male connector terminals 20 and the female connector terminals 40 make corresponding contact when the male connector 10 and the female connector 30 are engaged to achieve electrical connection, ensuring the reliability of the connection and improving the convenience of installation and disassembly.

[0042] like Figure 3As shown, the male connector 10 includes an end cap 11 and a protrusion 12. The end cap 11 covers the top surface of the female connector 30. The end cap 11 has a plate-like structure and a notch on its top surface, so that the top surface of the end cap 11 and the pin portion of the male connector terminal 20 are on the same horizontal plane to ensure the flatness of the pin. The protrusion 12 is inserted into the female connector 30.

[0043] like Figure 4 As shown, the protrusion 12 includes two parallel side walls 13 and two symmetrically arranged end walls 14. The end walls 14 are inclined and located at both ends of the side walls 13, making the protrusion 12 form an isosceles trapezoid. The side walls 13 and end walls 14 surround to form a mating groove 15 in the male seat 10. The mating groove 15 is located in the protrusion 12 and opens downward.

[0044] The end cap 11 is also provided with a plurality of male end mounting holes 16. There are two rows of male end mounting holes 16, which are located at the position where the end cap 11 connects with the two side walls 13 and are provided through the mating groove 15. Along the width direction of the male seat 10, half of the male end mounting holes 16 are located directly above the mating groove, and the other half are located directly above the inner side of the side wall.

[0045] The male end mounting hole 16 is provided with a locking groove 17 on one side above the side wall 13. The locking groove 17 is parallel to the length direction of the side wall 13. The width of the locking groove 17 is greater than the width of the male end mounting hole 16. The two ends of the locking groove 17 protrude from the two ends of the male end mounting hole 16.

[0046] The inner surface of the side wall 13 is provided with a plurality of limiting grooves 18 extending along the height direction of the side wall 13. The limiting grooves 18 are connected to the male end mounting hole 16. The limiting grooves 18 are used to limit the position of the male socket terminal 20 and prevent the male socket terminal 20 from shifting during insertion or vibration.

[0047] like Figure 2 , 5 As shown, the male connector terminal 20 is a conductive metal component, and in this embodiment, a copper sheet is used. The male connector terminal 20 has an overall bent structure and engages with the male end mounting hole 16 and engaging groove 17 of the male connector 10 to achieve electrical connection with the female connector terminal 40. The male connector terminal 20 includes a bent section 21, an engaging part 22, a notch 23, an inclined section 24, a contracted part 25, and an arc-shaped section 26.

[0048] The bent section 21 is located at the top of the male terminal 20 and is vertically arranged relative to the engaging part 21. The bent section 21 is the pin part of the male terminal 20, and the top surface of the bent section 21 is at the same level as the top surface of the end cover 11 of the male terminal 10.

[0049] The engaging portion 22 is located below the bent section 21. The width of the engaging portion 22 is slightly wider than the width of the engaging groove 17, allowing the engaging portion 22 to have an interference fit with the engaging groove 17 of the male connector 10, thereby fixing the male connector terminal 20 inside the male connector 10. Multiple notches 23 are provided on both sides of the engaging portion 22. These notches 23 are arc-shaped. The notches 23 allow the engaging portion 22 to undergo adaptive deformation during installation, facilitating insertion of the engaging portion 22 into the engaging groove 17 and ensuring a tight fit between the engaging portion 22 and the engaging groove 17 after insertion. This significantly improves the connection strength between the male connector terminal 20 and the male connector 10, preventing loosening.

[0050] The inclined section 24 extends obliquely from the engaging portion 22 toward the mating groove 15, and its width is smaller than that of the engaging portion 22. When the male connector 10 is inserted into the female connector 30, the inclined section 24 is pressed by the female connector terminal 40, and the inclined section 24 moves toward the side wall 13. The contraction portion 25 is located in the middle part of the inclined section 24, and its width is smaller than that of the other parts of the inclined section 24. The contraction portion 25 enhances the elastic deformation capability of the inclined section 24 and improves its elastic recovery force, so that the male connector terminal 20 can still maintain reliable contact with the female connector terminal 40 after long-term use or repeated insertion and removal.

[0051] The arc-shaped segment 26 is located at the end of the male terminal 20. The arc-shaped segment 26 protrudes towards the direction of the female terminal and is the contact end with the female terminal 40. Its arc-shaped structure can increase the contact strength with the female terminal 40 and reduce the contact resistance. At the same time, the arc-shaped design can avoid sharp structures from causing wear to the female terminal 40, and improve the stability of the contact and service life.

[0052] The inclined structure of the inclined section 24 allows the arc-shaped section 26 to abut tightly against the female terminal 40, ensuring reliable contact between the male terminal 20 and the female terminal 40. At the same time, it can absorb stress through deformation during vibration or insertion / removal, maintaining stable contact.

[0053] like Figure 6 , 7 As shown, the female connector 30 includes a central island 31, an annular groove 32, a female end pin hole 33, a mounting groove 34, and an auxiliary block 35.

[0054] The annular groove 32 is an isosceles trapezoidal groove with an upward opening on the female seat 30. The shape and size of the annular groove 32 are adapted to the protrusion 12 of the male seat 10. When the male seat 10 is inserted, the protrusion 12 can be embedded in the annular groove 32.

[0055] The central island 31 is located at the exact center of the annular groove 32. One side of the central island 31 is fixedly connected to the female seat 30, and the other side is on the same horizontal plane as the top surface of the female seat 30. The shape of the central island 31 is adapted to the mating groove 15 of the male seat 10. The central island 31, together with the mating groove 15, the protrusion 12, and the annular groove 32, achieves precise positioning of the male seat 10 and the female seat 30.

[0056] The female pin holes 33 are arranged in two rows, extending through the bottom of the female connector 30. Half of the female pin holes 33 are located below the annular groove 32, and the other half are located below the central island 31, for mounting the fixing section 42 of the female connector terminal 40. The female pin holes 33 correspond one-to-one with the male mounting holes 16 of the male connector 10, ensuring accurate contact between the male connector terminal 20 and the female connector terminal 40.

[0057] The two side walls of the central island 31 are provided with a plurality of mounting grooves 34 extending along the height direction of the central island 31. The mounting grooves 34 are in communication with the female end pin holes 33 and are used to accommodate the contact section 41 of the female terminal 40. The width of the mounting groove 34 is greater than the width of the limiting groove 18, and the mounting groove 34 is located directly opposite the limiting groove 18.

[0058] The auxiliary block 35 is located around the annular groove 32, fixed to the inner surface of the female seat 30, and perpendicular to the bottom surface of the female seat 30 along the height direction of the female seat 30. The auxiliary block 35 is a silicone pad or a rubber pad. The auxiliary block 35 can enhance the connection strength between the male seat 10 and the female seat 30 after insertion, reduce shaking after insertion, and improve the stability of the connection between the male seat 10 and the female seat 30.

[0059] like Figure 8 As shown, the female connector terminal 40 is a conductive metal component, and in this embodiment, a copper sheet is selected. The female connector terminal 40 is engaged within the female end pin hole 33 and mounting groove 34 of the female connector 30, and is used to contact the male connector terminal 20 to achieve electrical connection. The female connector terminal 40 includes a contact section 41, a fixing section 42, a reserved opening 43, and a connecting section 44.

[0060] The contact section 41 is located at the top of the female terminal 40 and is disposed in the mounting groove 34 of the central island 31. It is used to abut against the arc-shaped section 26 of the male terminal 20. The width of the contact section 41 is greater than the width of the arc-shaped section 26.

[0061] A fixing section 42 is located in the middle of the female terminal 40. The width of the fixing section 42 is greater than the width of the contact point 41, and the width of the fixing section 42 is slightly greater than the width of the female end pin hole 33. The fixing section 42 engages with the female end pin hole 33 of the female terminal 30 to fix the female terminal 40 inside the female terminal 30. Multiple reserved openings 43 are provided on both sides of the fixing section 42. The shape and function of the reserved openings 43 are similar to the notch 23 of the male terminal 20. This allows the fixing section 42 to undergo adaptive deformation during installation, facilitating insertion into the female end pin hole 33. At the same time, after insertion, it deforms and recovers to fit tightly into the female end pin hole 33, improving the connection strength between the female terminal 40 and the female terminal 30.

[0062] The connecting segment 44 is located at the end of the female terminal 40, is vertically arranged relative to the fixed segment 42, and extends downward from the bottom of the female terminal 30 as the pin portion of the female terminal 40.

[0063] The working principle of this utility model is as follows: In a board-to-board connector, during installation, the contact section 41 of the female connector terminal 40 is first inserted into the mounting groove 34 through the female pin hole 33. The fixing section 42 is interference-fitted into the female pin hole 33. The pre-reserved opening 43 makes it easier for the fixing section 42 to deform and adapt during installation, ensuring a stable connection between the female connector terminal 40 and the female connector 30. Next, the male connector terminal 20 of the male connector 10 is inserted into the male connector 10 through the male mounting hole 16. The engaging part 22 undergoes adaptive deformation through the notch 23, forming an interference fit with the engaging groove 17, facilitating installation and improving connection strength. Simultaneously, the engaging groove 17 also prevents the male connector terminal 20 from being over-inserted, thus preventing deformation. When the male connector 10 and female connector 30 are inserted, the mating groove 15 of the male connector 10 is aligned with the central island 31 of the female connector 30. At this time, the protrusion 12 and the annular groove 32 form a unique fitting relationship, avoiding incorrect insertion in the right or wrong direction or misaligned pin insertion. After the male connector 10 and female connector 30 are inserted, the inclined section 24 of the male connector terminal 20 abuts against the contact section 41 of the female connector terminal 40. The inclined section 24 is squeezed by the female connector terminal 40 and moves towards the side wall 13. The contraction section 25 enhances the elastic deformation capability of the male connector terminal 20, and the arc-shaped section 26 further increases the contact reliability, ensuring that the male connector terminal 20 and female connector terminal 40 maintain reliable contact under long-term insertion and removal or vibration environment. The auxiliary block 35 around the annular groove 32 increases the engagement strength of the male connector 10 and female connector 30, improving the overall connection strength and vibration and impact resistance. The mating groove 15 of the male connector 10 and the central island 31 of the female connector 30 form a nested structure, and the annular groove 32 and the protrusion 12 form a nested structure. After the male connector 10 and the female connector 30 are inserted, they form a surrounding shielding space, which effectively blocks external electromagnetic interference, reduces internal signal crosstalk, and improves signal transmission stability. At the same time, the structural design of the male connector terminal 20 and the female connector terminal 40 is simple, which facilitates mass production and reduces manufacturing costs.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A board-to-board connector, characterized in that: The device includes a female connector (30), a male connector (10) inserted into the female connector (30), and multiple male connector terminals (20) and female connector terminals (40) respectively disposed in the male connector (10) and the female connector (30). The female connector (30) has an annular groove (32) with an upward opening and an isosceles trapezoidal shape. The annular groove (32) has a central island (31). The bottom of the female connector (30) adjacent to the central island (31) has multiple female end pin holes (33) located on both sides of the central island (31) and communicating with the annular groove (32). The side wall of the central island (31) has multiple mounting grooves (34) extending along the height direction of the central island (31). The mounting grooves (34) are communicating with the female end pin holes (33). The male connector (10) has a mating groove (15) with an downward opening that is adapted to the central island (31). 5) The outline of the male seat (10) of the outer part is an isosceles trapezoid that matches the annular groove (32), so that the male seat (10) can be inserted into the female seat (30). The male seat (10) is also provided with a plurality of male end mounting holes (16) that pass through the mating groove (15) and a limiting groove (18) that passes through the male end mounting holes (16) and is provided on the inner wall of the male seat (10). The male end mounting holes (16) are correspondingly provided with the female end pin holes (33). The end of the male end mounting hole (16) that is adjacent to the side wall of the male seat (10) is also provided with a locking groove (17) that protrudes from both ends of the male end mounting hole (16). The male seat terminal (20) is provided with a locking part (22) that is interference-fitted with the locking groove (17) and an inclined section (24) that is inclined toward the mating groove (15).

2. A board-to-board connector according to claim 1, characterized in that: The engaging part (22) has multiple notches (23) on both sides.

3. A board-to-board connector according to claim 1, characterized in that: The inclined section (24) is provided with a contraction section (25).

4. A board-to-board connector according to claim 1, characterized in that: The male terminal (20) has an arc-shaped segment (26) at its end.

5. A board-to-board connector according to claim 1, characterized in that: The female terminal (40) includes a contact section (41), which is disposed in the mounting groove (34) and abuts against the end of the male terminal (20).

6. A board-to-board connector according to claim 1, characterized in that: The female terminal (40) includes a fixed section (42), and at least one reserved opening (43) is provided on each side of the fixed section (42).

7. A board-to-board connector according to claim 1, characterized in that: The annular groove (32) is surrounded by a plurality of auxiliary blocks (35) fixed to the inner surface of the female seat (30). The auxiliary blocks (35) are arranged perpendicularly to the bottom surface of the female seat (30) along the height direction of the female seat (30).

8. A board-to-board connector according to claim 1, characterized in that: The width of the mounting groove (34) is greater than the width of the limiting groove (18), and the limiting groove (18) is located directly opposite the mounting groove (34).

9. A board-to-board connector according to claim 1, characterized in that: The male mounting hole (16) is located along the width direction of the male seat (10), with half of it located above the mating groove (15) and the other half located above the side wall (13) of the male seat (10).

10. A board-to-board connector according to claim 1, characterized in that: The female end pin hole (33) is located half below the annular groove (32) and half below the central island (31) along the width direction of the female seat (30).

Images