Inter-board connector for straight printed board to bent printed board

Abstract

The invention discloses an inter-board connector for a straight printed board and a bent printed board, and belongs to the technical field of micro rectangular connectors, the connector comprises a straight connector and a bent connector which can be plugged together, the middle part of a straight shell of the straight connector is hollowed out to form a straight cavity, two sides of the straight shell extend outwards to form connecting tables with holes, and the connecting tables are connected with the straight connector and the bent connector. A sinking table is arranged on the side, close to the bent connector, of the perforated connecting table, a vertical cavity and a transverse cavity which are communicated with each other and perpendicular to each other are formed in a convex shell of the bent connector, a weight reduction groove is further formed in the side face of the convex shell, a multi-hole socket is installed in the transverse cavity, and a plurality of transverse contact pins are transversely installed on the multi-hole socket at equal intervals. A plurality of vertical insertion pipes are vertically installed on the multi-hole socket at equal intervals. Compared with the prior art, the structure enables the connector to meet the welding requirements of a printed board through improving the shape of the housing and adding the nut, the sinking platform, the weight reduction groove and the like, can also be used as a free end, and has the advantages of miniaturization and light weight.

Description

Technical Field

[0001] The invention belongs to the technical field of micro rectangular connectors, and in particular relates to an inter-board connector of a straight printed circuit board to a bent printed circuit board. Background Art

[0002] Micro rectangular electrical connectors are a type of electrical connector that has developed rapidly in China in recent years. Previously, they were mainly imported. They are small in size, light in weight, and highly reliable. They have extremely high application value and development potential in military fields such as aerospace. With the development of miniaturization and diversification of the whole machine, inter-board connectors are increasingly widely used in the aerospace field. The height of the inter-board connector is an important factor in product design. In order to meet the inter-board size requirements, the connector is large in size after the connector shape is widened, which is not conducive to the miniaturization of the system. At the same time, most of the commonly used printed circuit board connectors are used as fixed ends, and the inter-board connector itself cannot be locked.

[0003] Judging from the international wars that have occurred in recent years, modern weapons and equipment have been increasingly developing in the direction of miniaturization, lightness, high integration, multi-function and high reliability, and this trend will become more obvious in the future. In order to meet the development needs of the whole machine model, the electrical connectors supporting it must also have the above characteristics.

[0004] Based on this, the shortcomings of existing products are as follows:

[0005] The shortcomings of the prior art are mainly:

[0006] 1) Conventional micro-rectangular printed circuit board connectors are used as fixed ends, and wired connectors are used as free ends for pairing; 2) Flangeless connectors are inconvenient to plug and unplug; 3) Free-end printed circuit board connectors do not have the function of fixed printed circuit board welding; 4) Flange widened connectors are heavy and cannot meet the requirements of miniaturization and lightweight.

[0007] How to solve the above technical problems and how to design a new type of inter-board connector for a straight printed circuit board to a bent printed circuit board have long troubled technicians in this field. Summary of the invention

[0008] In response to the above technical problems, the present invention provides a board-to-board connector for a straight printed circuit board to a bent printed circuit board. The structure improves the shape of the shell and adds nuts, sinkers, weight-reducing grooves and other structures so that the connector can not only meet the welding requirements of the printed circuit board, but also be used as a free end.

[0009] The present invention solves the above problems by the following technical means:

[0010] A board-to-board connector for a straight printed circuit board to a curved printed circuit board, characterized in that it comprises a pluggable straight connector and a curved connector, wherein: the middle of the straight housing of the straight connector is hollowed out to form a straight cavity, the two sides of the straight housing extend outward to form a connection platform with holes, a sink is provided on the side of the connection platform with holes close to the curved connector, a multi-hole plug is installed in the straight cavity, a plurality of straight pins are equidistantly installed inside the multi-hole plug, a bolt is installed in the connection platform with holes, and a detachable nut is sleeved on the end of the bolt; the curved connection A vertical cavity and a horizontal cavity which are interconnected and perpendicular to each other are provided inside the convex shell of the connector, a weight-reducing groove is also provided on the side of the convex shell, connecting holes for connecting bolts are provided on both sides of the vertical cavity, mounting holes for connecting the printed board are provided on both sides of the weight-reducing groove, a multi-hole socket is installed inside the horizontal cavity, a plurality of horizontal pins are installed on the multi-hole socket at equal intervals laterally, a plurality of vertical plug tubes are installed on the multi-hole socket at equal intervals vertically, the outer ends of the vertical plug tubes are located inside the vertical cavity and are used to connect the straight pins, and the inner ends of the vertical plug tubes are connected to the horizontal pins.

[0011] Preferably, an insulating film is provided between the hole-carrying connection platform and the printing plate.

[0012] Preferably, a contact washer and an open spring washer are provided between the screw head of the bolt and the printed board.

[0013] Preferably, the depth of the sink is in the range of 0.5 mm to 0.7 mm.

[0014] Preferably, the column spacing of the straight pins ranges from 1.0 mm to 1.2 mm, and the row spacing of the straight pins ranges from 1.2 mm to 1.3 mm.

[0015] Preferably, the outer contour length of the curved connector ranges from 18 mm to 24 mm.

[0016] The present invention has the following beneficial effects:

[0017] This structure improves the shape of the shell and adds structures such as nuts, sinkers, and weight-reducing grooves so that the connector can not only meet the requirements of printed circuit board welding, but also be used as a free end form, with the advantages of miniaturization and lightness. Specifically, the straight connector is designed as a free end mounting accessory to achieve a locking connection between board and board connectors. The straight connector adds a sinker design on the mating surface to facilitate the insertion and separation of the plug and the socket. In addition, since the printed circuit board opening size and contact distance of the straight connector are relatively small, the user's printed circuit board wiring is relatively limited. A polytetrafluoroethylene film is added to the product to play an insulating role between the shell and the printed circuit board, which is convenient for users to wire the printed circuit board. At the same time, an anti-rotation detachable nut is designed to fix the connector on the printed circuit board, which is convenient for users to weld the contact pins. When the product is plugged in, the nut is removed. Finally, a weight-reducing groove is provided at the widened part of the shell, which not only meets the product width requirements, but also meets the technical requirements that the connector weight does not exceed the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the vertical housing of the present invention;

[0021] Figure 3 It is a schematic diagram of bolt installation of the present invention.

[0022] Figure 4 is a schematic diagram of the straight pin layout of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the curved connector of the present invention;

[0024] Figure 6 It is a schematic diagram of the connection hole structure of the present invention;

[0025] Figure 7 It is a schematic diagram of the dimensions of the curved connector of the present invention.

[0026] Among them, 1-straight connector, 101-straight shell, 102-straight cavity, 103-hole connecting platform, 104-sinking platform, 105-multi-hole plug, 106-straight pin, 107-bolt, 108-removable nut, 109-insulating film, 110-contact washer, 111-open spring washer, 2-bent connector, 201-convex shell, 202-vertical cavity, 203-horizontal cavity, 204-weight reduction groove, 205-connecting hole, 206-mounting hole, 207-multi-hole socket, 208-horizontal pin, 209-vertical plug, 3-printed board. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] The present invention will be described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 7 As shown, the inter-board connector of the straight printed circuit board to the curved printed circuit board includes a pluggable straight connector 1 and a curved connector 2. The structure is a miniaturized and lightweight inter-board connector. Specifically, the column spacing L2 of the straight pins 106 ranges from 1.0 mm to 1.2 mm, and the row spacing L3 of the straight pins 106 ranges from 1.2 mm to 1.3 mm.

[0030] In the figure, the middle of the straight housing 101 of the straight connector 1 is hollowed out to form a straight cavity 102, and the two sides of the straight housing 101 extend outward to form a connection platform with holes 103. A sinking platform 104 is provided on the side of the connection platform with holes 103 close to the curved connector 2. A multi-hole plug 105 is installed in the straight cavity 102, and a plurality of straight pins 106 are installed equidistantly inside the multi-hole plug 105. A bolt 107 is installed in the connection platform with holes 103, and a detachable nut 108 is set at the end of the bolt 107. Specifically, the straight connector 1 is designed as a free-end mounting accessory to achieve a locking connection between board and board connectors. The straight connector adds a sinking platform design on the mating surface to facilitate the insertion and separation of the plug and the socket. The depth L1 of the sinking platform 104 ranges from 0.5mm to 0.7mm.

[0031] It should be noted that, due to the relatively small size of the printed circuit board opening and the distance between the contacts of the straight connector, the user's printed circuit board wiring is relatively limited. A polytetrafluoroethylene film is added to the product to play an insulating role between the shell and the printed circuit board, which is convenient for users to wire the printed circuit board. At the same time, an anti-rotation detachable nut is designed to fix the connector on the printed circuit board, which is convenient for users to weld the contact pins. When the product is plugged in, the nut is removed. In the figure, an insulating film 109 is arranged between the perforated connection platform 103 and the printed circuit board 3, and a contact washer 110 and an open spring washer 111 are arranged between the screw head of the bolt 107 and the printed circuit board 3.

[0032] In the figure, a vertical cavity 202 and a horizontal cavity 203 which are interconnected and perpendicular to each other are provided inside the convex shell 201 of the curved connector 2. A weight-reducing groove 204 is also provided on the side of the convex shell 201. Connecting holes 205 for connecting bolts 107 are provided on both sides of the vertical cavity 202. Mounting holes 206 for connecting the printed board 3 are provided on both sides of the weight-reducing groove 204. A multi-hole socket 207 is installed inside the horizontal cavity 203. The multi-hole socket 207 is provided with a plurality of horizontal pins 208 equidistantly installed laterally. The multi-hole socket 207 is provided with a plurality of vertical plug tubes 209 equidistantly installed vertically. The outer ends of the vertical plug tubes 209 are located inside the vertical cavity 202 and are used to connect the straight pins 106. The inner ends of the vertical plug tubes 209 are connected to the horizontal pins 208.

[0033] In actual application, due to the user's space requirements, the product width needs to be increased. After the product is widened, the contact will also become longer accordingly, which has a greater impact on the product weight. Widening the shell causes the product weight to increase, which exceeds the user's requirement that the connector weight does not exceed the standard. Therefore, the widened part of the shell is designed to be hollow. Specifically, the outer contour length L4 of the curved connector 2 ranges from 18mm to 24mm.

[0034] This structure improves the shape of the shell and adds nuts, sinks, weight-reducing grooves and other structures to enable the connector to meet the requirements of printed circuit board welding and be used as a free end. It has the advantages of miniaturization and lightweight, can meet the requirements of miniaturization of the entire machine and users, and is in line with the development trend of modern weaponry.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A board-to-board connector for a straight printed board to a curved printed board, characterized in that: It comprises a pluggable straight connector (1) and a curved connector (2), wherein: The straight housing (101) of the straight connector (1) is hollowed out in the middle to form a straight cavity (102), and both sides of the straight housing (101) extend outward to form a connection platform with a hole (103), and a sink (104) is provided on one side of the connection platform with a hole close to the curved connector (2), a multi-hole plug (105) is installed in the straight cavity (102), and a plurality of straight pins (106) are installed at equal intervals inside the multi-hole plug (105), and a bolt (107) is installed in the connection platform with a hole (103), and a detachable nut (108) is sleeved on the end of the bolt (107); The convex shell (201) of the curved connector (2) is provided with a vertical cavity (202) and a horizontal cavity (203) which are interconnected and perpendicular to each other. A weight-reducing groove (204) is also provided on the side of the convex shell (201). Connection holes (205) for connecting bolts (107) are provided on both sides of the vertical cavity (202). Installation holes (206) for connecting a printed board (3) are provided on both sides of the weight-reducing groove (204). A multi-hole socket (207) is installed inside the horizontal cavity (203). The multi-hole socket (207) is provided with a plurality of horizontal pins (208) equidistantly installed in the horizontal direction. The multi-hole socket (207) is provided with a plurality of vertical plugs (209) equidistantly installed in the vertical direction. The outer ends of the vertical plugs (209) are located inside the vertical cavity (202) and are used to connect to the straight pins (106). The inner ends of the vertical plugs (209) are connected to the horizontal pins (208).

2. The board-to-board connector of a straight printed circuit board to a curved printed circuit board according to claim 1, characterized in that: An insulating film (109) is provided between the hole-carrying connection platform (103) and the printed board (3).

3. The board-to-board connector of a straight printed circuit board to a curved printed circuit board according to claim 1, characterized in that: A contact washer (110) and an open spring washer (111) are provided between the screw head of the bolt (107) and the printed board (3).

4. The board-to-board connector of a straight printed circuit board to a curved printed circuit board according to claim 1, characterized in that: The depth (L1) of the sink (104) ranges from 0.5 mm to 0.7 mm.

5. The board-to-board connector of a straight printed circuit board to a curved printed circuit board according to claim 1, characterized in that: The column spacing (L2) of the straight pins (106) ranges from 1.0 mm to 1.2 mm, and the row spacing (L3) of the straight pins (106) ranges from 1.2 mm to 1.3 mm.

6. The board-to-board connector of a straight printed circuit board to a curved printed circuit board according to claim 1, characterized in that: The outer contour length (L4) of the curved connector (2) ranges from 18 mm to 24 mm.

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