Board-to-board male socket connector

Abstract

The utility model discloses a board-to-board male socket connector, comprising an insulation pedestal, the insulation pedestal comprises a pair of oppositely arranged long edge side walls, a pair of oppositely arranged short edge end walls and two separator plates arranged between the two long edge side walls, the separator plates are parallel to the long edge side walls, and the short edge end walls are parallel to the long edge side walls. And a plurality of conductive terminals are arranged on the partition plates and the long side walls in a staggered manner. The conductive terminals comprise rigid terminals arranged on the side walls of the two long edges and elastic terminals arranged on the two partition plates. According to the utility model, the four rows of terminals are arranged in a staggered manner, the rigid terminals and the flexible terminals are combined, the double contacts are elastically abutted against each other, and the PINs are separated by plastic cement, so that the distance between the terminals and the size of the connector are greatly reduced, and the problem of short circuit of the pins due to insulation breakdown of narrow distance is solved; and the problem of poor voltage resistance when the distance between adjacent pins or contact points is too narrow or the terminal is inclined in PIN is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology, and particularly relates to a board-to-board male connector. Background Technology

[0002] Board-to-board connectors are commonly used connection components in electronic products, establishing an electrical connection between two circuit boards. They mainly consist of a female connector and a male connector. The female connector is typically soldered onto one circuit board, while the male connector is soldered onto another. Both the female and male connectors have a corresponding number of conductive terminals for transmitting electronic signals and power. By plugging in the female and male connectors, a communication connection between the two circuit boards can be achieved.

[0003] However, with the trend towards connector miniaturization, existing board-to-board connectors have many shortcomings in order to further reduce their footprint. The traditional dual-row terminal layout makes it difficult to further reduce the terminal spacing, resulting in a larger connector size that cannot meet the compact space requirements of miniaturized devices. Furthermore, the lack of effective isolation between pins leads to frequent insulation breakdowns and pin short circuits when encountering situations such as misaligned pins at narrow pitches. This highlights the problem of poor withstand voltage, affecting the performance and reliability of the entire electronic device. Utility Model Content

[0004] The purpose of this invention is to provide a board-to-board male connector to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A board-to-board male connector includes an insulating base with protective shells at both ends. The insulating base includes a pair of opposing long sidewalls, a pair of opposing short sidewalls, and two partitions disposed between the two long sidewalls. The partitions are parallel to the long sidewalls. Multiple conductive terminals are alternately arranged on the partitions and the long sidewalls, and each conductive terminal has two electrical contact surfaces.

[0007] Furthermore, the conductive terminals include rigid terminals disposed on the two long sidewalls and elastic terminals disposed on the two partitions.

[0008] Furthermore, the rigid terminal includes a first contact surface located on the outer side of the long sidewall and a second contact surface located on the inner side of the long sidewall; the elastic terminal includes a first elastic arm located on the outer side of the partition and a second elastic arm extending toward the long sidewall and located on the same side as the second contact surface; the second elastic arm and the second contact surface are arranged alternately.

[0009] Furthermore, the rigid terminal also includes a first solder foot that extends horizontally outward from the bottom of the first contact surface through the base plate of the insulating base.

[0010] Furthermore, the first contact surface is provided with outwardly protruding snap points to improve the connection retention force.

[0011] Furthermore, the elastic terminal also includes a fixed support arm embedded in the partition plate, and a second welding foot formed by extending horizontally outward from the bottom of the fixed support arm through the base plate of the insulating base; the first elastic arm is formed by extending outward from the top of the fixed support arm.

[0012] Furthermore, barbs are provided on both sides of the fixed support arm.

[0013] Furthermore, through holes are provided on the bottom plate of the insulating base between the two partitions.

[0014] Furthermore, the protective shell includes an end wall protection portion covering the short side end wall and a side wall protection portion partially covering the long side wall.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] The board-to-board male connector provided by this utility model adopts a four-row staggered terminal layout, a composite design of rigid and flexible terminals, double-contact elastic abutment, and plastic barriers between pins, which greatly reduces the terminal spacing and connector volume. It also solves the problem of short circuit due to insulation breakdown of narrow-pitch pins, effectively avoiding the problem of poor withstand voltage when the distance between adjacent pins or contact points is too narrow or the pins are crooked. The process can achieve one-time molding, ensuring insulation while achieving stable electrical connection.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of a board-to-board male connector provided in an embodiment of this utility model;

[0020] Figure 2 An exploded view of a board-to-board male connector provided in an embodiment of this utility model;

[0021] Figure 3 A board-to-board male connector provided for embodiments of this utility model Figure 1 A sectional view along line AA based on the given data;

[0022] Figure 4 A board-to-board male connector provided for embodiments of this utility model Figure 1 A sectional view along line BB based on the given data;

[0023] Figure 5 A top view of a board-to-board male connector provided in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the conductive terminals in a board-to-board male connector provided for an embodiment of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Insulating base, 101-Partition plate, 102-Long side wall, 103-Short side end wall, 104-First terminal fixing groove, 105-Second terminal fixing groove, 106-Terminal clearance groove, 2-Rigid terminal, 201-First contact surface, 202-Second contact surface, 203-First welding foot, 204-Snapping point, 3-Elastic terminal, 301-Fixing arm, 302-First elastic arm, 303-Second elastic arm, 304-Second welding foot, 305-Barb, 4-Protective shell, 401-End wall top surface covering, 402-End wall inner side surface covering, 403-End wall outer side surface covering, 404-Side wall top surface covering, 405-Side wall inner side surface covering, 406-Side wall outer side surface covering, 407-Protective shell welding foot. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] like Figure 1 As shown, this embodiment of the utility model provides a board-to-board male connector, including an insulating base 1, conductive terminals, and a protective shell 4. Specifically:

[0029] like Figure 2As shown, the insulating base 1 is the foundation of the male connector. Its main body adopts a rectangular box structure design. The insulating base 1 includes a pair of opposing long side walls 102, a pair of opposing short side end walls 103, and two partitions 101 disposed between the two long side walls 102. The partitions 101 are parallel to the long side walls 102. As a mounting base for other components, the two long side walls 102 and the two partitions 101 provide physical support for four rows of conductive terminals and also serve as electrical insulation, isolating each conductive terminal and preventing mutual interference. Furthermore, a through hole is provided on the bottom plate of the insulating base 1 between the two partitions 101 to facilitate the cutting of the terminal strip by a lower cutting blade.

[0030] like Figures 2 to 6 As shown, the conductive terminals include rigid terminals 2 and elastic terminals 3. Multiple rigid terminals 2 and elastic terminals 3 are arranged alternately, and each rigid terminal 2 and each elastic terminal 3 has two electrical contact surfaces, enabling double-point contact between the conductive terminals of the male connector and the conductive terminals of the female connector. The rigid terminals 2 are equidistantly spaced side-by-side within the first terminal fixing groove 104 of the long sidewall 102. Each rigid terminal 2 includes a first contact surface 201 located on the outer side of the long sidewall 102, a first solder foot 203 extending horizontally outward from the bottom of the first contact surface 201, and a second contact surface 202 extending from the top of the first contact surface 201 on the inner side of the long sidewall 102. The second contact surface 202 is parallel to the first contact surface 201, and its bottom is fixed to the base plate of the insulating base 1. The first solder foot 203 passes through the base plate of the insulating base 1 and protrudes outside the insulating base 1, serving to connect to the first circuit board and transmit electrical signals. Furthermore, the first contact surface 201 is formed with outwardly protruding latching points 204 to improve the connection holding force, so as to ensure a more secure connection between the male connector and the female connector and prevent loosening.

[0031] In this embodiment, the number of elastic terminals 3 is the same as the number of rigid terminals 2. The elastic terminals 3 are embedded side by side at equal intervals on the partition plate 101. Each elastic terminal 3 includes a fixed support arm 301, a first elastic arm 302, a second elastic arm 303, and a second welding foot 304. The fixed support arm 301 has barbs 305 on both sides, which are embedded in the second terminal fixing groove 105 on the partition plate 101; the second welding foot 304 is formed by extending horizontally outward from the bottom of the fixed support arm 301 through the bottom plate of the insulating base 1, and is used to weld with the first circuit board; the first elastic arm 302 extends outward from the top of the fixed support arm 301 and is located on the outer side of the partition plate 101; the second elastic arm 303 is arranged opposite to the first elastic arm 302, and is formed by extending upward from the bottom of the first elastic arm 302 toward the long side wall 102 and then bending upward, located on the same side of the second contact surface 202 and can float in the terminal clearance groove 106 of the long side wall 102; the second elastic arm 303 and the second contact surface 202 are arranged alternately. The four rows of terminals are staggered, and there is plastic barrier between each PIN, which greatly reduces the terminal spacing and connector volume. The process can achieve one-time molding, resulting in high strength. Furthermore, the rigid terminal 2 is combined with the flexible terminal, and the double contact elastic abutment ensures stable and reliable contact.

[0032] The protective shell 4 is integrally formed using a bending process and is disposed at both ends of the insulating base 1. The protective shell 4 includes an end wall protection portion covering the short side end wall 103 and a side wall protection portion partially covering the long side side wall 102. Specifically, the end wall protection portion includes an outer side cover portion 403 covering the outer surface of the short side end wall 103. The top of the outer side cover portion 403 is horizontally bent to cover the top surface of the short side end wall 103, forming an upper side cover portion 401. A portion of the upper side cover portion 401 is vertically bent downwards to extend and cover the inner surface of the short side end wall 103, forming an inner side cover portion 402. The side wall protection portion includes outer side covers disposed at both ends of the outer side cover portion 403 and extending along the outer surface of the long side wall 102. Part 406, the bottom edge of the outer side surface covering part 406 extends horizontally outward to form a protective shell 4 solder foot for connection with the first circuit board, the top of the outer side surface covering part 406 bends inward horizontally to cover the top surface of the long side wall 102 to form a side wall top surface covering part 404, the top surface covering part 404 bends vertically inward to cover the inner side surface of the long side wall 102 to form a side wall inner surface covering part 405, the side wall inner surface covering part 405 can be used as the male power terminal of the male connector to be electrically connected to the female connector.

[0033] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model 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 male-socket connector characterized by comprising: The application relates to an insulating base (1) provided with protective shells (4) at both ends, the insulating base (1) comprising a pair of oppositely arranged long-side side walls (102), a pair of oppositely arranged short-side end walls (103) and two partition plates (101) arranged between the two long-side side walls (102), the partition plates (101) being parallel to the long-side side walls (102), and a plurality of conductive terminals being alternately arranged on the partition plates (101) and the long-side side walls (102), each conductive terminal having two electrically contacting surfaces.

2. A board-to-board male socket connector according to claim 1, characterized by: The conductive terminals comprise rigid terminals (2) arranged on the long-side side walls (102) and elastic terminals (3) arranged on the partition plates (101).

3. A board-to-board male socket connector according to claim 2, characterized in that: The rigid terminals (2) comprise first contacting surfaces (201) located on the outer side of the long-side side walls (102) and second contacting surfaces (202) located on the inner side of the long-side side walls (102); the elastic terminals (3) comprise first elastic arms (302) located on the outer side of the partition plates (101) and second elastic arms (303) located on the same side of the second contacting surfaces (202) and extending towards the long-side side walls (102); and the second elastic arms (303) are alternately arranged with the second contacting surfaces (202).

4. A board-to-board male socket connector according to claim 3, characterized in that: The rigid terminals (2) further comprise first soldering pins (203) horizontally extending outwards from the bottom of the first contacting surfaces (201) and penetrating through the bottom plate of the insulating base (1).

5. A board-to-board male socket connector according to claim 3, wherein: The first contacting surfaces (201) are provided with outwardly protruding buckle points (204) for improving the connection retention.

6. A board-to-board male socket connector according to claim 3, characterized by: The elastic terminals (3) further comprise fixed arms (301) embedded in the partition plates (101), second soldering pins (304) horizontally extending outwards from the bottom of the fixed arms (301) and penetrating through the bottom plate of the insulating base (1), and the first elastic arms (302) extending outwards from the top of the fixed arms (301).

7. A board-to-board male socket connector according to claim 6, characterized in that: The fixed arms (301) are provided with barbs (305) on both sides.

8. The board-to-board male socket connector of claim 1, wherein: The bottom plate of the insulating base (1) between the two partition plates (101) is further provided with through holes.

9. The board-to-board male socket connector of claim 1, wherein: The protective shells (4) comprise end wall protection portions wrapped on the short-side end walls (103) and side wall protection portions wrapped on the long-side side walls (102).

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