A board-to-board connector

Abstract

The utility model provides a board-to-board connector, which relates to the technical field of connectors. The board-to-board connector includes: a base assembly and a plurality of conductive terminals installed in the base assembly, the conductive terminals include external pins; the base assembly includes a base and a metal shell; the base includes a front substrate and a rear end seat, the conductive terminals are installed on the base, the metal shell is sleeved outside the front substrate and locked with the rear end seat, and a socket with an open front is formed between the metal shell and the front substrate; a supporting portion extending outward is provided on the upper side of the metal shell, and a positioning protrusion protruding outward and a supporting boss protruding outward from the upper end of the positioning protrusion are provided on the side of the rear end seat, and the first supporting surface of the supporting boss, the second supporting surface of the supporting portion and the soldering surface of the external pin are all facing downward and arranged in the same plane. The board-to-board connector in the utility model has a reasonable structure, can be firmly fixed on the circuit board, thereby ensuring the reliability of electrical connection during use, and has good practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a board-to-board connector. Background Art

[0002] The board-to-board connector is used for quick connection between different circuit boards. When in use, the connector is fixed on the mounting circuit board, and the gold finger part of the docking circuit board is inserted into the socket of the connector to achieve electrical connection through the conductive terminal and the gold finger on the docking circuit board. In the prior art, the board-to-board connector is fixedly installed on the mounting circuit board by welding the conductive terminal to the welding position on the mounting circuit board. The stability of the installation is relatively poor, and there is a risk of loosening, which in turn affects the reliability of the electrical connection. Utility Model Content

[0003] To solve this problem, the utility model provides a board-to-board connector with stable and reliable installation.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a board-to-board connector, comprising: a base component and a plurality of conductive terminals installed in the base component, wherein the conductive terminals include a mounting portion fixedly connected to the base component and an outer pin extending from the rear end of the base component;

[0006] The base assembly includes a base and a metal shell;

[0007] The base includes a front substrate and a rear end seat connected to the rear end of the front substrate as a whole, the conductive terminal is installed on the base, the metal shell is sleeved outside the front substrate and locked with the rear end seat, and a socket with an open front is formed between the metal shell and the front substrate;

[0008] A supporting portion extending outward is provided on the upper side of the metal shell, a positioning protrusion protruding outward and a supporting boss protruding outward from the upper end of the positioning protrusion are provided on the side of the rear end seat, and the first supporting surface of the supporting boss, the second supporting surface of the supporting portion and the soldering surface of the external pin are all facing downward and arranged in the same plane.

[0009] In some embodiments, a terminal receiving groove connected to the socket is provided in the base, the mounting portion of the conductive terminal is inserted and fixed in the terminal receiving groove, and the front end of the conductive terminal has an elastic contact portion bent backward and extending into the socket.

[0010] In some embodiments, the end of the elastic contact portion has a supporting portion bent toward the inside of the terminal accommodating groove.

[0011] In some embodiments, a convex rib is formed by stamping at a connection between the support portion and the elastic contact portion.

[0012] In some embodiments, a forward step is provided at the junction of the front substrate and the rear end seat, the rear end of the metal shell abuts against the step, a slot is provided on the step, and a buckle is provided at the rear end of the metal shell to engage with the slot.

[0013] In some embodiments, upwardly protruding side panels are provided on both sides of the front substrate, the front substrate and the two side panels form a U-shaped structure, the socket is located in the U-shaped structure, and the side panels support the metal shell.

[0014] In some embodiments, the external pin includes a "7"-shaped bending portion and a welding portion connected to the end of the bending portion and formed by bending downward and then backward, and the soldering surface is arranged at the bottom of the welding portion.

[0015] When the board-to-board connector provided by the embodiment of the utility model is installed on a mounting circuit board, the first supporting surface, the second supporting surface and the soldering surface contact the mounting circuit board to form an upward support for the board-to-board connector, and the supporting portion and the external pins are welded to the corresponding welding positions on the mounting circuit board to form fixation and conduction, and the positioning protrusion cooperates with the positioning groove on the mounting circuit board to form positioning in the front and rear directions, thereby ensuring the stability of the board-to-board connector installed on the mounting circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the board-to-board connector in the utility model;

[0018] Figure 2 for Figure 1 A front view of the board-to-board connector shown;

[0019] Figure 3 For along Figure 2 Sectional view cut along the midline DD;

[0020] Figure 4 It is a structural schematic diagram of the base in the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the board-to-board connector of the utility model when it is installed and used;

[0022] Figure 6for Figure 5 Schematic diagram of the structure shown in FIG.

[0023] Figure 7 for Figure 6 Schematic diagram of another perspective of the structure shown in. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] The present utility model embodiment provides a board-to-board connector 100. Figures 1 to 7As shown, the board-to-board connector 100 comprises: a base assembly 1 and a plurality of conductive terminals 2 installed in the base assembly 1, wherein the conductive terminals 2 comprise a mounting portion 21 fixedly connected to the base assembly 1 and an outer pin 22 extending from the rear end of the base assembly 1; the base assembly 1 comprises a base 11 and a metal shell 12; the base 11 comprises a front substrate 111 and a rear end seat 112 connected to the rear end of the front substrate 111 as a whole, the conductive terminals 2 are mounted on the base 11, the metal shell 12 is sleeved on the outside of the front substrate 111 and is locked with the rear end seat 112, and a socket C with an open front is formed between the metal shell 12 and the front substrate 111, and the socket C is for inserting the gold finger portion 301 on the docking circuit board 300.

[0029] A supporting portion 122 extending outward is provided on the upper side of the metal shell 12, and a positioning protrusion A protruding outward and a supporting boss 1121 protruding outward from the upper end of the positioning protrusion A are provided on the side of the rear end seat 112. The first supporting surface a of the supporting boss 1121, the second supporting surface c of the supporting portion 122 and the soldering surface b of the external pin 22 are all facing downward and arranged in the same plane to adapt to the fit with the mounting circuit board 200 when the board-to-board connector 100 is installed, thereby forming an effective support for the board-to-board connector 100.

[0030] Combination Figure 1 and Figure 5 As shown, when the board-to-board connector 100 in this embodiment is installed on the mounting circuit board 200, the first supporting surface a, the second supporting surface c and the soldering surface b overlap with the mounting circuit board 200 to form an upward support for the board-to-board connector 100, and the supporting portion 122 and the external pin 22 are welded to the corresponding welding positions on the mounting circuit board 200 to form fixation and conduction, and the positioning protrusion A cooperates with the positioning groove 201 on the mounting circuit board 200 to form positioning in the front and rear directions, thereby ensuring the stability of the board-to-board connector 100 installed on the mounting circuit board 200.

[0031] In some embodiments, Figure 3 and Figure 4 As shown, the base 11 is provided with a terminal accommodating groove B connected with the socket C, the mounting portion 21 of the conductive terminal 2 is inserted and fixed in the terminal accommodating groove B, and the front end of the conductive terminal 2 has an elastic contact portion 23 extending into the socket C. When the gold finger portion 301 of the docking circuit board 300 is inserted into the socket C, the elastic contact portion 23 maintains elastic contact with the gold finger portion 301 of the docking circuit board 300, thereby ensuring the reliability of the electrical connection.

[0032] See also Figure 3As shown, the end of the elastic contact portion 23 has a support portion 24 bent toward the inside of the terminal accommodating groove B, which contacts the elastic contact portion 23 after the docking circuit board 300 is inserted into the socket C, and the support portion 24 contacts the corresponding part to provide support force to the elastic contact portion 23, thereby enhancing the contact pressure between the elastic contact portion 23 and the docking circuit board 300, thereby ensuring reliable electrical connection. More preferably, a convex rib 25 is stamped and formed at the connection between the support portion 24 and the elastic contact portion 23, and the presence of the convex rib 25 can enhance the anti-deformation ability of the connection between the support portion 24 and the elastic contact portion 23, thereby improving the effectiveness and durability of the support portion 24 supporting the elastic contact portion 23.

[0033] Furthermore, a convex rib 123 protruding into the socket C is provided on the metal shell 12 , and the convex rib 123 can press the gold finger portion 301 inserted into the socket C, thereby enhancing the tightness of the contact between the elastic contact portion 23 and the gold finger portion 301 .

[0034] In some embodiments, Figure 3 and Figure 4 As shown, a forward step d is provided at the connection between the front substrate 111 and the rear end seat 112, the rear end of the metal shell 12 is against the step d, and a slot A1 is provided on the step d. A buckle 121 engaged with the slot A1 is provided at the rear end of the metal shell 12. During assembly, the metal shell 12 is against the step to play a stopping and limiting role, and the buckle 121 is tightly engaged in the slot A1 to lock the metal shell 12, ensuring that the metal shell 12 is effectively installed on the outside of the front substrate 111.

[0035] In some embodiments, Figure 4 As shown, the front substrate 111 is provided with side panels 113 protruding upward on both sides, and the front substrate 111 and the two side panels 113 form a U-shaped structure. The socket C is located in the U-shaped structure, and the side panels 113 support the metal shell 12. When the gold finger part 301 is inserted into the socket C, the two side panels 113 can limit the gold finger part 301, and the metal shell 12 is supported by the side panels 113 to enhance the pressure resistance of the metal shell 12.

[0036] In some embodiments, in combination Figure 1As shown, the external pin 22 includes a bending portion 221 in the shape of a "7" and a welding portion 222 connected to the end of the bending portion 221 and first bent downward and then bent backward to form, and the soldering surface b is arranged at the bottom of the welding portion 222; such a configuration can be better suitable for the installation of the board-to-board connector on an aluminum-based mounting circuit board, so that the bending portion 221 can maintain a distance from the edge of the aluminum-based mounting circuit board, and is only welded to the corresponding welding position on the aluminum-based mounting circuit board 200 through the welding portion 222, thereby avoiding the risk of short circuit caused by contact between the bending portion 221 and the edge of the aluminum-based mounting circuit board.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A board-to-board connector, comprising: A base assembly and a plurality of conductive terminals installed in the base assembly, wherein the conductive terminals include a mounting portion fixedly connected to the base assembly and an outer pin extending from the rear end of the base assembly; characterized in that: The base assembly includes a base and a metal shell; The base includes a front substrate and a rear end seat connected to the rear end of the front substrate as a whole, the conductive terminal is installed on the base, the metal shell is sleeved outside the front substrate and locked with the rear end seat, and a socket with an open front is formed between the metal shell and the front substrate; A supporting portion extending outward is provided on the upper side of the metal shell, a positioning protrusion protruding outward and a supporting boss protruding outward from the upper end of the positioning protrusion are provided on the side of the rear end seat, and the first supporting surface of the supporting boss, the second supporting surface of the supporting portion and the soldering surface of the external pin are all facing downward and arranged in the same plane.

2. The board-to-board connector according to claim 1, wherein: The base is provided with a terminal accommodating groove connected with the socket, the mounting portion of the conductive terminal is inserted and fixed in the terminal accommodating groove, and the front end of the conductive terminal has an elastic contact portion bent backward and extending into the socket.

3. The board-to-board connector according to claim 2, characterized in that: The end of the elastic contact portion has a supporting portion bent toward the inside of the terminal accommodating groove.

4. The board-to-board connector according to claim 3, characterized in that: A convex rib is formed by stamping at the connection between the support portion and the elastic contact portion.

5. The board-to-board connector according to claim 1, wherein: A forward step is provided at the junction of the front substrate and the rear end seat, the rear end of the metal shell abuts against the step, a slot is provided on the step, and a buckle engaged with the slot is provided at the rear end of the metal shell.

6. The board-to-board connector according to claim 1, wherein: The front substrate is provided with side panels protruding upward on both sides, the front substrate and the two side panels form a U-shaped structure, the socket is located in the U-shaped structure, and the side panels support the metal shell.

7. The board-to-board connector according to claim 1, wherein: The outer pin includes a "7"-shaped bending portion and a welding portion connected to the end of the bending portion and formed by bending downward and then backward, and the soldering surface is arranged at the bottom of the welding portion.

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