A vertical surface mount micro-rectangular electrical connector

Abstract

The application discloses a vertical surface mount micro-rectangular electric connector and belongs to the technical field of electric connectors. The connector comprises a plug and a socket. The plug shell is internally provided with a plug base, two rows of sleeve pins are equidistantly arranged on the plug base, plug guide columns are symmetrically arranged on the two sides of the plug shell, and plug soldering pads are arranged at the bottom of the two sides of the plug shell. The middle part of the socket shell is provided with a socket cavity, the socket cavity is internally provided with a socket base, two rows of socket jacks are equidistantly arranged on the socket base, guide holes are arranged on the two sides of the socket shell, the guide holes are matched with the plug guide columns to realize blind insertion and combination between the plug and the socket, and socket soldering pads are arranged at the bottom of the guide holes. Compared with the existing screw locking structure, the structure does not need to penetrate the printed board and meets the use requirements of double-sided boards. The bottom of the soldering pad is provided with a positioning column to prevent position deviation during welding of the connector. The plug and the socket are provided with guide devices and can realize blind insertion and combination between parallel printed boards.

Description

Technical Field

[0001] This invention belongs to the field of electrical connector technology, and particularly relates to a vertically mounted micro rectangular electrical connector. Background Technology

[0002] Micro rectangular electrical connectors are common electronic devices widely used in military systems such as aviation, aerospace, and defense. Common classification methods for electrical connectors include shape, structure, and application. Micro rectangular electrical connectors are classified into three main categories based on their housing type: cold-extruded aluminum housing, all-plastic housing, and extended housing.

[0003] Existing vertically mounted micro rectangular electrical connectors use a screw-locking installation structure. The screw needs to penetrate the internal threads of the printed circuit board and the connector housing from the bottom of the printed circuit board to complete the installation of the connector. This structure causes the screw head to protrude from the back of the printed circuit board. Since double-sided printed circuit boards need to be wired or have devices installed on both sides, the above structure does not meet the usage requirements of double-sided printed circuit boards.

[0004] Designing a vertically mounted micro rectangular electrical connector to solve the above-mentioned technical problems has become a current technical challenge in this field. Summary of the Invention

[0005] To address the aforementioned technical issues, this invention provides a vertically mounted micro rectangular electrical connector. This structure eliminates the need to penetrate the printed circuit board, meeting the requirements for double-sided boards. The pads have positioning posts at the bottom to prevent positional shifts during connector soldering. The plug and socket have guiding devices to enable blind mating between parallel printed circuit boards.

[0006] The present invention solves the above problems through the following technical means:

[0007] A vertically mounted micro rectangular electrical connector, characterized in that it includes a plug and a socket, wherein: the plug housing has a plug base installed inside, and two rows of sleeved pins are equidistantly arranged on the plug base, the ends of the sleeved pins are bent to connect with the circuit board, plug guide posts are symmetrically installed on both sides of the plug housing, and plug solder pads are provided at the bottom of both sides of the plug housing; the socket housing has a socket cavity in the middle, and a socket base is installed inside the socket cavity, with two rows of socket holes equidistantly arranged on the socket base, the ends of the socket holes are bent to connect with the circuit board, guide holes are provided on both sides of the socket housing, the guide holes cooperate with the plug guide posts to achieve blind mating between the plug and the socket, and socket solder pads are provided at the bottom of the guide holes.

[0008] Preferably, the plug housing has a pin cavity for mounting the plug base in the middle, and mounting holes for fixing the plug guide post and plug solder piece are provided on both sides of the plug housing. A positioning side hole is opened on the side wall of the mounting hole, and a set screw is installed on the positioning side hole.

[0009] Preferably, the top of the plug guide post is provided with a guide head, the middle of the plug guide post is provided with a hexagonal platform, and the bottom of the plug guide post is provided with a connecting external thread.

[0010] Preferably, the plug solder pad consists of a plug soldering pad in the middle, a plug positioning head at the bottom, and a plug connecting post at the top. The plug soldering pad is used to connect the circuit board solder joints, the plug positioning head is used to insert into the positioning hole of the circuit board, and the plug connecting post has an opening in the middle with an internal thread on the hole wall. The internal thread engages with the external thread of the plug guide post.

[0011] Preferably, a positioning cavity is provided at the bottom of the guide hole, and a through hole is provided on the positioning cavity, with a pin installed laterally inside the through hole.

[0012] Preferably, the socket solder pad consists of a socket soldering plate in the middle, a socket positioning head at the bottom, and a socket connecting post at the top. The socket soldering plate is connected to the solder joint of the circuit board, the socket positioning head is used to insert into the positioning hole of the circuit board, and the socket connecting post is provided with a transverse hole. After the socket connecting post is inserted into the positioning cavity, it is fixed by a pin.

[0013] The present invention has the following beneficial effects:

[0014] This solution uses solder pads to weld to the printed circuit board (PCB), relying on the welding force to install and fix the vertically mounted connector without penetrating the PCB. Simultaneously, the bottom end of the solder pad is designed with a positioning post, which mates with the positioning hole on the PCB to prevent connector misalignment during soldering. The vertically mounted micro-rectangular electrical connector plug and socket with the above mounting structure are designed with guide posts and guide holes, respectively, to allow blind mating between parallel PCBs. The guide post on the plug has external threads, which lock into the internal threads of the solder pad to install the guide post. It also works in conjunction with a set screw screwed into the side of the connector housing to ensure a secure installation of the guide post, preventing it from loosening or coming off under strong vibration conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall assembly of the present invention;

[0017] Figure 2 This is a schematic diagram of the plug structure of the present invention;

[0018] Figure 3This is a schematic diagram of the plug guide post connection of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the plug housing of the present invention;

[0020] Figure 5 This is a schematic diagram of the guide hole structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the internal structure of the socket of the present invention.

[0022] Among them, 1-plug, 101-plug housing, 102-plug base, 103-sleeved pin, 104-plug guide post, 105-plug solder pad, 1011-pin cavity, 1012-mounting hole, 1013-positioning side hole, 1014-set screw, 1041-guide head, 1042-hexagonal platform, 1043-connecting external thread, 1051-plug soldering plate, 1052-plug positioning. Head, 1053-Plug connecting post, 1054-Connecting internal thread, 2-Socket, 201-Socket housing, 202-Socket base, 203-Socket socket hole, 204-Socket solder pad, 2011-Socket cavity, 2012-Guide hole, 2013-Positioning cavity, 2014-Pin, 2041-Socket soldering plate, 2042-Socket positioning head, 2043-Socket connecting post, 2044-Transverse hole. Implementation

[0023] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. 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 this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] The present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 6As shown, the vertically mounted micro rectangular electrical connector includes a plug 1 and a socket 2. In the figure, the plug housing 101 of the plug 1 has a plug base 102 installed inside. Two rows of sleeved pins 103 are equidistantly arranged on the plug base 102. The ends of the sleeved pins 103 are bent to connect with the circuit board. Plug guide posts 104 are symmetrically installed on both sides of the plug housing 101. Plug solder pads 105 are provided at the bottom of both sides of the plug housing 101. The socket housing 201 of the socket 2 has a socket cavity 2011 in the middle. The socket base 202 is installed inside the socket cavity 2011. Two rows of socket holes 203 are equidistantly arranged on the socket base 202. The ends of the socket holes 203 are bent to connect with the circuit board. Guide holes 2012 are provided on both sides of the socket housing 201. The guide holes 2012 cooperate with the plug guide posts 104 to achieve blind mating between the plug 1 and the socket 2. Socket solder pads 204 are provided at the bottom of the guide holes 2012.

[0026] In this embodiment, the plug housing 101 has a pin cavity 1011 for mounting the plug base 102 in the middle. The plug housing 101 has mounting holes 1012 on both sides for fixing the plug guide post 104 and the plug solder pad 105. The mounting holes 1012 are stepped holes, and positioning side holes 1013 are formed on the sidewalls of the mounting holes 1012. Set screws 1014 are installed in the positioning side holes 1013. A guide head 1041 is provided at the top of the plug guide post 104, a hexagonal platform 1042 is provided in the middle of the plug guide post 104, and an external thread 1043 is provided at the bottom of the plug guide post 104. The plug solder pad 105 consists of a plug soldering plate 1051 in the middle, a plug positioning head 1052 at the bottom, and a plug connecting post 1053 at the top. The plug soldering plate 1051 is used to connect the circuit board solder joints, the plug positioning head 1052 is used to insert into the positioning hole of the circuit board, and the plug connecting post 1053 has an opening in the middle, with an internal thread 1054 on the hole wall. The internal thread 1054 is connected to the external thread 1043 of the plug guide post 104.

[0027] The assembly process of plug 1 is as follows: First, fix the plug solder tab 105, then screw in the plug guide post 104, with the angle of the solder tab as follows. Figure 2 As shown, specifically, the plug guide post 104 is first inserted into the mounting hole 1012. Due to the action of the hexagonal platform 1042, the plug guide post 104 is positioned. Then, the plug connector post 1053 is installed in the mounting hole 1012. The central hole of the plug connector post 1053 is threaded onto the bottom of the plug guide post 104. The set screw 1014 can secure the plug guide post 104 and the plug solder piece 10. In practical applications, adhesive can also be applied for fixation.

[0028] In this embodiment, a positioning cavity 2013 is provided at the bottom of the guide hole 2012. A through hole is provided on the positioning cavity 2013, and a pin 2014 is installed horizontally inside the through hole. The socket solder pad 204 consists of a socket soldering plate 2041 in the middle, a socket positioning head 2042 at the bottom, and a socket connecting post 2043 at the top. The socket soldering plate 2041 is connected to the solder joint of the circuit board. The socket positioning head 2042 is used to insert into the positioning hole of the circuit board. A horizontal hole 2044 is provided on the socket connecting post 2043. After the socket connecting post 2043 is inserted into the positioning cavity 2013, it is fixed by the pin 2014.

[0029] The assembly process of socket 2 is as follows: First, the socket connecting post 2043 is placed into the positioning cavity 2013. Then, the pin 2014 is used to pass through the positioning cavity 2013 and the socket connecting post 2043, and the socket is fixed by interference fit.

[0030] It should be further explained that there are 31 sleeved pins, arranged in two rows: 16 in the upper row and 15 in the lower row. The spacing between the sleeved pins in each row is 1 mm, and the row spacing is 0.866 mm. The sleeved pins are bent twice to form a 90° bend. The surface 1 of the 31 sleeved pins is coplanar and differs from the surface 2 of the solder piece by 0.1 mm. There are also 31 sockets, arranged in two rows: 16 in the upper row and 15 in the lower row. The spacing between the sockets in each row is 1 mm, and the row spacing is 0.866 mm. The sockets are bent twice to form a 90° bend. The surface 3 of the 31 sockets is coplanar and differs from the surface 4 of the solder piece 10 by 0.1 mm.

[0031] In this embodiment, a vertically mounted blind-plug connector with a contact spacing of 1mm and a row spacing of 0.866mm is used. The connector is installed by soldering with solder pads, and the positioning pins on the solder pads are positioned. The guide pin of the plug is threaded and fixed with adhesive to the solder pads. The set screw is tightened to the guide pin after being coated with adhesive to prevent the guide pin from loosening and falling off from the solder pads. The pin is interference-fitted with the outer shell and the solder pads to fix the solder pads of the socket. The plug is blindly inserted into the socket before the pin is inserted into the socket hole through the cooperation of the guide pin and the guide hole. The socket protrudes with a step, and the plug sinks with a step, which reduces the insertion height and increases the guide length.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertically mounted micro rectangular electrical connector, characterized in that, Includes a plug (1) and a socket (2), wherein: The plug (1) has a plug base (102) installed inside the plug housing (101). Two rows of sleeved pins (103) are arranged equidistantly on the plug base (102). The ends of the sleeved pins (103) are bent to connect to the circuit board. Plug guide posts (104) are symmetrically installed on both sides of the plug housing (101). Plug solder pads (105) are provided at the bottom of both sides of the plug housing (101). The socket housing (201) of the socket (2) has a socket cavity (2011) in the middle. A socket base (202) is installed in the socket cavity (2011). Two rows of socket holes (203) are arranged at equal intervals on the socket base (202). The ends of the socket holes (203) are bent to connect with the circuit board. Guide holes (2012) are provided on both sides of the socket housing (201). The guide holes (2012) work with the plug guide post (104) to realize blind insertion between the plug (1) and the socket (2). A socket solder pad (204) is provided at the bottom of the guide hole (2012). The plug housing (101) has a pin cavity (1011) for mounting the plug base (102) in the middle. The plug housing (101) has mounting holes (1012) for fixing the plug guide post (104) and the plug solder piece (105) on both sides. The mounting hole (1012) has a positioning side hole (1013) on the side wall. A set screw (1014) is installed on the positioning side hole (1013). The top of the plug guide post (104) is provided with a guide head (1041), the middle of the plug guide post (104) is provided with a hexagonal platform (1042), and the bottom of the plug guide post (104) is provided with a connecting external thread (1043). The plug solder pad (105) is composed of a plug soldering plate (1051) in the middle, a plug positioning head (1052) at the bottom, and a plug connecting post (1053) at the top. The plug soldering plate (1051) is used to connect the circuit board solder joints, the plug positioning head (1052) is used to insert into the positioning hole of the circuit board, and the plug connecting post (1053) has an opening in the middle, and the hole wall is provided with a connecting internal thread (1054). The connecting internal thread (1054) is connected to the connecting external thread (1043) of the plug guide post (104). The bottom of the guide hole (2012) is provided with a positioning cavity (2013), and a through hole is provided on the positioning cavity (2013), and a pin (2014) is installed horizontally in the through hole. The socket solder pad (204) consists of a socket soldering plate (2041) in the middle, a socket positioning head (2042) at the bottom, and a socket connecting post (2043) at the top. The socket soldering plate (2041) is connected to the solder joint of the circuit board. The socket positioning head (2042) is used to insert into the positioning hole of the circuit board. The socket connecting post (2043) is provided with a transverse hole (2044). After the socket connecting post (2043) is inserted into the positioning cavity (2013), it is fixed by a pin (2014).

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