A board-to-board socket connector and a connector assembly and an electronic device thereof

Abstract

The application discloses a board-to-board socket connector and a connector assembly and an electronic device thereof. The socket of the board-to-board connector comprises a first insulating base provided with a side wall, an end wall and a middle island protrusion, a plurality of socket conductive terminals arranged on the side wall, and a plurality of protective conductor members arranged on the end wall and integrally formed, wherein the protective conductor members are provided with a middle island protection part, a power conductor part and an end wall guide part. The board-to-board connector assembly comprises the socket connector and a plug connector provided with a second insulating base, a plurality of plug end conductor members and a plurality of plug conductive terminals. The electronic device comprises the board-to-board connector assembly, and the assembly is arranged in a device shell. The application can reduce the overall volume of the connector, improve the heat dissipation efficiency, shorten the current path and improve the flow efficiency, and effectively meet the demand of the terminal device for fast charging and large current.

Description

Technical Field

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

[0002] With the widespread adoption and improved performance of smart devices such as smartphones, tablets, and wearables, users are demanding increasingly faster charging speeds. Fast charging technology has become a standard feature of smart terminal products, and one of the keys to achieving fast charging lies in the device's internal connectors, especially board-to-board connectors, which must be capable of handling high current and high voltage while ensuring the safety and stability of the connection.

[0003] In traditional board-to-board connector designs, the reinforcement, power terminals, and central island protection are designed, manufactured, and assembled completely separately. While there are some improved solutions that attempt to integrate two of these functions, they all have inherent drawbacks: they occupy a large overall space, face inherent bottlenecks in size reduction, and are difficult to adapt to the increasingly demanding thin and light design requirements of smart terminals; their complex structure leads to the accumulation of current heat effects, poor heat dissipation performance, and difficulty in optimizing the current path.

[0004] Therefore, the demand for fast charging power in smart terminals is advancing rapidly, and board-to-board connectors need to achieve higher current carrying capacity, better heat dissipation performance, and absolutely reliable safety protection in a smaller space.

[0005] This structural design has significant inherent drawbacks: the assembly process is cumbersome and costly, increasing production steps and time during processing, positioning, and assembly, making it difficult to guarantee assembly accuracy and posing potential assembly error risks; there are also reliability risks, as the interfaces between multiple independent components may become potential failure points, affecting the long-term reliability of the connector. Utility Model Content

[0006] The purpose of this utility model is to overcome the problems mentioned above in the background art: to provide a board-to-board socket connector and its connector assembly, as well as electronic equipment, which solves the above problems through an integrated protective conductor design. The technical solution adopted by this utility model is:

[0007] A board-to-board socket connector includes: a first insulating base having a bottom, a sidewall protruding from the bottom, an end wall, and a central island protrusion; the sidewall and the end wall intersect and are disposed therebetween, the sidewall comprising a first sidewall and a second sidewall disposed opposite to each other, the end wall comprising a first endwall and a second endwall disposed opposite to each other, the sidewall and the end wall surrounding the central island protrusion and forming a mating space around the central island protrusion; a plurality of socket conductive terminals disposed on the sidewall; and a plurality of integrally formed protective conductors disposed on the end wall, the protective conductors having a central island protective portion, a power conductor portion, and an end wall guide portion; the central island protective portion covering the central island protrusion; the power conductor portion disposed on both sides of the central island protective portion, having a retaining cover end and an elastic contact portion, the retaining cover end covering the sidewall and retaining it at the bottom of the sidewall, the elastic contact portion being disposed towards the mating space; and the end wall guide portion extending horizontally from the bottom of the end wall of the central island protective portion, bending upwards, and covering the end wall.

[0008] As a further improvement to the above solution, the central island protection section has a horizontal plate covering the upper surface of the central island protrusion, connecting side arms disposed on both sides of the horizontal plate and connecting the horizontal plate to the power conductor section, a connecting end arm disposed on one end of the horizontal plate near the end wall guide section and connecting the horizontal plate to the end wall guide section, and a fixing bend disposed on one end of the horizontal plate away from the end wall guide section.

[0009] As a further improvement to the above solution, the power conductor portion also has a fixing arm that extends from the holding cover end along the side wall direction and bends at the end wall.

[0010] As a further improvement to the above solution, the elastic contact portion includes a first elastic contact arm and a second elastic contact arm. The first elastic contact arm is disposed between the end wall guide portion and the central island protection portion, and the second elastic contact arm is disposed on the fixed arm.

[0011] As a further improvement to the above solution, the first elastic contact arm is a spring-loaded structure that extends horizontally from the bottom of the inner side of the holding cover end to the vicinity of the central island protrusion and then bends upward.

[0012] As a further improvement to the above solution, the second elastic contact arm is a spring structure in which the upper end of the fixed arm extends upward and bends inward to form an inverted U-shape; the second elastic contact arm is set at a position perpendicular to the fixed arm and the insertion space.

[0013] As a further improvement to the above solution, the second elastic contact arm is provided with the contact protrusion on the side facing the insertion space, and / or the end wall guide is provided with the contact protrusion on the side facing the insertion space.

[0014] As a further improvement to the above solution, the bottom of the end wall guide portion, the bottom of the second elastic contact arm, and the bottom of the holding cover end of the power conductor portion all extend outward to form welding feet.

[0015] As a further improvement to the above solution, the end wall guide portion is provided with injection holes on the outer side of the end wall and the power conductor portion is provided on the outer side of the side wall.

[0016] This application embodiment also provides a board-to-board connector assembly, including a board-to-board plug connector and the aforementioned board-to-board socket connector, wherein the board-to-board plug connector includes a second insulating base, a plurality of plug end conductors, and a plurality of plug conductive terminals;

[0017] When the board-to-board plug connector and the board-to-board socket connector are mated and plugged in, the conductive terminals of the plug are electrically connected to the conductive terminals of the socket, and the conductor at the end of the plug is electrically connected to the protective conductor.

[0018] This application also provides an electronic device, including a device housing and the aforementioned board-to-board connector assembly, wherein the board-to-board connector assembly is disposed within the device housing.

[0019] Compared with the prior art, the board-to-board socket connector and its connecting components and electronic devices provided by this utility model have the following advantages: the one-piece molded protective conductor helps to reduce the overall size of the connector; multiple elastic contact arms can effectively meet the high current requirements of fast charging of terminal devices; the protective conductor increases the metal ratio and improves heat dissipation efficiency; the optimized setting position of the soldering feet shortens the current path and improves the current flow efficiency; and it is more adaptable to the design requirements of highly integrated and lightweight smart terminals and the technical requirements of fast charging. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0021] Figure 1 A first-view structural schematic diagram of the protective conductor component provided by this utility model;

[0022] Figure 2 A second-view structural schematic diagram of the protective conductor component provided by this utility model;

[0023] Figure 3A first-view structural schematic diagram of the board-to-board socket connector provided by this utility model;

[0024] Figure 4 A second-view structural schematic diagram of the board-to-board socket connector provided by this utility model;

[0025] Figure 5 This is a schematic diagram of the board-to-board plug connector structure provided by this utility model;

[0026] Figure 6 A schematic diagram of the overall structure of the board-to-board connector assembly provided by this utility model;

[0027] Figure 7 A cross-sectional view along AA' of the board-to-board connector assembly provided by this utility model;

[0028] Figure 8 A cross-sectional view along BB' of the board-to-board connector assembly provided by this utility model.

[0029] The components represented by each number in the attached diagram are explained below:

[0030] 10-Socket connector, 20-Plug connector; 1-First insulating base, 101-Side wall, 102-End wall, 103-Center island protrusion, 104-Mating space, 2-Socket conductive terminal, 3-Protective conductor, 301-Center island protection, 3011-Horizontal plate, 3012-Connecting side arm, 3013-Connecting end arm, 3014-Fixing bend, 302-Power conductor, 3021-Holding cover end, 3022-Elastic contact, 3022a-First elastic contact arm, 3022b-Second elastic contact arm, 3023-Fixing arm, 303-End wall guide, 304-Contact protrusion, 305-Welding foot, 4-Second insulating base, 5-Plug conductive terminal, 6-Plug end conductor.

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0033] The terms "first" and "second" in the specification and claims of this application are 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 at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] Please refer to Figures 1-4 The board-to-board connector socket disclosed in this application includes a board-to-board socket connector, comprising: a first insulating base 1, the first insulating base having a bottom, a side wall 101 protruding from the bottom, an end wall 102, and a central island protrusion 103; the side wall 101 and the end wall 102 are intersecting and disposed, the side wall 101 includes a first side wall and a second side wall disposed opposite to each other, the end wall 102 includes a first end wall and a second end wall disposed opposite to each other, the side wall 101 and the end wall 102 surround the central island protrusion 103, and form a mating space 104 around the central island protrusion 103; a plurality of socket conductive terminals 2, the socket conductive terminals 2 being disposed on the side wall 101;

[0035] In addition, multiple integrally formed protective conductors 3 are disposed on the end wall 102. Each protective conductor 3 has a central island protective part 301, a power conductor part 302, and an end wall guide part 303. The central island protective part 301 covers the central island protrusion 103. The power conductor part 302 is disposed on both sides of the central island protective part 301 and has a holding cover end 3021 and an elastic contact part 3022. The holding cover end 3021 covers the side wall 101 and is held at the bottom of the side wall 101. The elastic contact part 3022 is disposed towards the insertion space 104. The end wall guide part 303 extends horizontally from the bottom of the end wall of the central island protective part 301, bends upward, and covers the end wall 102. The protective conductor 3 can be an axisymmetric structure. It integrates the central island protection section 301 (for central island protection), the power conductor section 302 (for current transmission and protective sidewalls), and the end wall guide section 303 (for end wall protection and guidance). This integrated design reduces the overall size of the connector, aligning with the trend towards highly integrated and lightweight modern smart terminals. Furthermore, the one-piece design significantly improves material utilization, shortens assembly processes, and reduces the risk of assembly errors.

[0036] For details, please refer to [link / reference]. Figures 1-2Optionally, the central island protection section 301 has a horizontal plate 3011 covering the upper surface of the central island protrusion 103, a connecting side arm 3012 provided on both sides of the horizontal plate 3011 and connecting the horizontal plate 3011 and the power conductor section 302, a connecting end arm 3013 provided at one end of the horizontal plate 3011 near the end wall guide section 303 and connecting the horizontal plate 3011 and the end wall guide section 303, and a fixing bend 3014 provided at one end of the horizontal plate 3011 away from the end wall guide section 303.

[0037] Preferably, two connecting side arms 3012 are provided on both sides of the horizontal plate 3011, and the two connecting side arms 3012 on the same side are respectively provided at the front and rear ends of the horizontal plate 3011.

[0038] Therefore, the horizontal plate 3011, the connecting side arm 3012, and the connecting end wall 3013 are used together to protect the island protrusion 103. The island protection part 301 covers the top surface and surrounding protrusions of the island protrusion 103, thereby reducing the wear on the island protrusion 103 when the board-to-board socket connector 10 and the board-to-board plug connector 20 are plugged in.

[0039] In this embodiment, the power conductor portion 302 also has a fixing arm 3023, which extends and bends from the holding cover end 3021 toward the side wall 101, with the bend located at the end wall 102. The fixing arm 3023 helps to enhance the shape stability of the board-to-board socket connector and further fix the protective conductor 3, preventing the protective conductor 3 from shifting relative to the first insulating base 1.

[0040] In a further embodiment, the elastic contact portion 3022 includes a first elastic contact arm 3022a and a second elastic contact arm 3022b. The first elastic contact arm 3022a is disposed between the end wall guide portion 303 and the central island protection portion 301, and the second elastic contact arm 3022b is disposed on the fixed arm 3023. The provision of the first elastic contact arm 3022a and the second elastic contact arm 3022b effectively improves the current flow efficiency.

[0041] Further optionally, the first elastic contact arm 3022a is a spring sheet structure that extends horizontally from the bottom of the inner side of the holding cover end 3021 to near the central island protrusion 103 and then bends upward. The first elastic contact arm 3022a is disposed between two connecting side arms 3012 on the same side.

[0042] Alternatively, the second elastic contact arm 3022b is a spring structure in which the upper end of the fixed arm 3023 extends upward and bends inward to form an "inverted U-shape"; the second elastic contact arm 3022b is provided at a position perpendicular to the fixed arm 3023 and the insertion space 104.

[0043] Furthermore, by setting up the aforementioned multiple elastic contact arms 302 (first elastic contact arm 3022a, second elastic contact arm 3022b), the current channel (cross-sectional area) is increased, which can effectively meet the high current demand of fast charging of terminal devices, reduce the overall contact resistance and path impedance, and thus allow a larger current to pass through under the allowable temperature rise; the multiple elastic contact arms 302 disperse the current and the generated heat to different areas, and the metal area provided by the protective conductor part 3 is larger, so this structure significantly improves the heat dissipation efficiency of the board-to-board socket connector and ensures the stability of current transmission.

[0044] In a further embodiment, the second elastic contact arm 3022b has a contact protrusion 304 on the side facing the insertion space 104, and the end wall guide portion 303 also has a contact protrusion 304 on the side facing the insertion space 104. This is the preferred embodiment. This embodiment also provides optional embodiments, such as having the contact protrusion 304 only on the second elastic contact arm 3022b or only on the end wall guide portion 303. This embodiment does not limit the specific shape of the contact protrusion 304.

[0045] By setting multiple contact bumps 304, the high pressure and plastic deformation of the material brought about by the contact bumps 304 make the contact area insensitive to minor vibrations and surface changes, thus maintaining a constant conductive channel.

[0046] In this embodiment, the bottom of the end wall guide portion 303, the bottom of the first elastic contact arm 3022a, and the bottom of the holding and covering end 3021 of the power conductor portion 302 all extend outward to form welding feet 305. The welding feet 305 can be block-shaped, sheet-shaped, etc., and this embodiment does not limit the specific structure of the welding feet 305. In this embodiment, the specific positions of the welding feet 305 are located at relatively short distances from each contact portion, thus shortening the current flow path and improving current flow efficiency.

[0047] In this embodiment, the end wall guide portion 303 is provided with injection holes on the outer side of the end wall 102 and on the outer side of the power conductor portion 302 covering the side wall 101. The injection holes are easy to fill the mold with glue during injection and have a glue-holding effect after injection, increasing the glue-holding strength.

[0048] refer to Figures 5-6 In this embodiment, the present invention also discloses a board-to-board connector assembly, including a board-to-board plug connector 20 and a board-to-board socket connector 10 as described above. The board-to-board plug connector 20 includes a second insulating base 4, a plurality of plug conductive terminals 5, and a plurality of plug end conductors 6.

[0049] Combination Figures 6-8When the board-to-board plug connector 20 and the board-to-board socket connector 10 are mated and plugged in, the plug conductive terminal 5 is electrically connected to the socket conductive terminal 2, and the plug end conductor 6 is electrically connected to the protective conductor 3. Specifically, the first elastic contact arm 3022a, the second elastic contact arm 3022b, and the end wall guide portion 303 in the protective conductor 3 are electrically connected to the plug end conductor 6.

[0050] It is worth noting that the plug end conductor 6 is integrally formed and is roughly U-shaped. The bottom of the U-shape is set on the end wall of the second insulating base 4, and the long arms on both sides are set on the side wall of the second insulating base 4. The plug end conductor 6 has a notch at the inner side of the corner between the end wall and the side wall of the second insulating base 4. The structure is simple and easy to process and manufacture.

[0051] In addition, the protective conductor 3 has a protrusion on the side of the power conductor 302 near the insertion space 104, and the plug end conductor 6 has a groove at the position corresponding to the protrusion after being electrically connected to the protective conductor 3.

[0052] Based on the board-to-board socket connector and connector assembly disclosed in this application, embodiments of this application also disclose an electronic device, including a device housing and the aforementioned board-to-board connector assembly, wherein the board-to-board connector assembly is disposed within the device housing. Using this embodiment, this structure helps to reduce the overall size of the connector, adapting to the design requirements of highly integrated and thin smart terminals.

[0053] Optionally, the board-to-board connector assembly is disposed within the device housing. In addition to the board-to-board connector and the device housing, the electronic device may also include electronic components such as circuit boards and sensors, which are disposed within the device housing.

[0054] The electronic devices disclosed in this application can be smartphones, tablets, e-book readers, wearable devices, video game consoles, etc. This application does not limit the specific types of electronic devices.

[0055] This application aims to overcome the shortcomings of traditional board-to-board connectors and meet the fast charging requirements of existing devices by achieving higher current carrying capacity and better heat dissipation in a smaller space. A board-to-board socket connector and its connector assembly, as well as an electronic device, are proposed. The socket of the board-to-board connector includes a first insulating base 1 with sidewalls 101, endwalls 102, and a central island protrusion 103; multiple socket conductive terminals 2 disposed on the sidewalls 101; and multiple integrally formed protective conductors 3 disposed on the endwalls 102. Each protective conductor 3 has a central island protection portion 301, a power conductor portion 302, and an endwall guide portion 303. The integrally formed protective conductors help reduce the overall size of the connector; multiple elastic contact arms effectively meet the high current requirements of fast charging for terminal devices; the increased metal ratio of the protective conductors improves heat dissipation efficiency; the optimized soldering pin positions shorten the current path and improve current flow efficiency; and it benefits the development trend of highly integrated and thinner modern smart terminals and the technical requirements for fast charging.

[0056] The above embodiments are preferred embodiments of this utility model, but not all embodiments. Any equivalent changes to the technical solutions of this utility model made by those skilled in the art after reading this utility model specification are covered by this utility model application.

Claims

1. A board-to-board socket connector, comprising: A first insulating base (1) has a bottom, a side wall (101) protruding from the bottom, an end wall (102), and a central island protrusion (103); the side wall (101) and the end wall (102) are intersecting each other, the side wall (101) includes a first side wall and a second side wall disposed opposite to each other, the end wall (102) includes a first end wall and a second end wall disposed opposite to each other, the side wall (101) and the end wall (102) surround the central island protrusion (103) and form an insertion space (104) around the central island protrusion (103). Multiple socket conductive terminals (2) are disposed on the side wall (101); The feature is that it also includes a plurality of integrally formed protective conductors (3) disposed on the end wall (102), the protective conductors (3) having a central island protective part (301), a power conductor part (302), and an end wall guide part (303). The central island protective section (301) covers the central island protrusion (103); The power conductor portion (302) is disposed on both sides of the central island protection portion (301), and has a retaining cover end (3021) and an elastic contact portion (3022). The retaining cover end (3021) covers the side wall (101) and is fixed to the bottom of the side wall (101). The elastic contact portion (3022) is disposed facing the insertion space (104). The end wall guide (303) extends horizontally from the bottom of the end wall of the central island protection part (301), bends upward, and covers the end wall (102).

2. The board-to-board socket connector according to claim 1, characterized in that, The central island protection section (301) has a horizontal plate (3011) covering the upper surface of the central island protrusion (103), a connecting side arm (3012) disposed on both sides of the horizontal plate (3011) and connecting the horizontal plate (3011) and the power conductor section (302), a connecting end arm (3013) disposed on one end of the horizontal plate (3011) near the end wall guide section (303) and connecting the horizontal plate (3011) and the end wall guide section (303), and a fixing bend (3014) disposed on one end of the horizontal plate (3011) away from the end wall guide section (303).

3. The board-to-board socket connector according to claim 2, characterized in that, The power conductor portion (302) also has a fixing arm (3023) that extends from the holding cover end (3021) along the direction of the side wall (101) and bends at the end wall (102).

4. The board-to-board socket connector according to claim 3, characterized in that, The elastic contact portion (3022) includes a first elastic contact arm (3022a) and a second elastic contact arm (3022b). The first elastic contact arm (3022a) is disposed between the end wall guide portion (303) and the central island protection portion (301), and the second elastic contact arm (3022b) is disposed on the fixed arm (3023).

5. The board-to-board socket connector according to claim 4, characterized in that, The first elastic contact arm (3022a) is a spring-loaded structure that extends horizontally from the bottom of the inner side of the holding cover end (3021) to the vicinity of the central island protrusion (103) and then bends upward.

6. The board-to-board socket connector according to claim 4, characterized in that, The second elastic contact arm (3022b) is an inverted U-shaped spring sheet structure that extends upward from the upper end of the fixed arm (3023) and bends inward; the second elastic contact arm (3022b) is set at a position perpendicular to the fixed arm (3023) and the insertion space (104).

7. The board-to-board socket connector according to claim 4, characterized in that, The second elastic contact arm (3022b) is provided with a contact protrusion (304) on the side facing the insertion space (104), and / or the end wall guide (303) is provided with a contact protrusion (304) on the side facing the insertion space (104).

8. The board-to-board socket connector according to claim 7, characterized in that, The bottom of the end wall guide portion (303), the bottom of the second elastic contact arm (3022b), and the bottom of the holding cover end (3021) of the power conductor portion (302) all extend outward to form welding feet (305).

9. A board-to-board connector assembly, characterized in that, The board-to-board plug connector (20) and the board-to-board socket connector (10) according to any one of claims 1-8, wherein the board-to-board plug connector (20) includes a second insulating base (4), a plurality of plug conductive terminals (5), and a plurality of plug end conductors (6); When the board-to-board plug connector (20) and the board-to-board socket connector (10) are plugged in, the plug conductive terminal (5) is electrically connected to the socket conductive terminal (2), and the plug end conductor (6) is electrically connected to the protective conductor (3).

10. An electronic device, characterized in that, The device includes a housing and the board-to-board connector assembly as described in claim 9, wherein the board-to-board connector assembly is disposed within the housing.

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