Board-to-board connector

Abstract

The utility model relates to the technical field of connectors, and discloses a board-to-board connector, which comprises a connector female seat and a connector male seat, the connector female seat comprises a female end insulating seat and at least one female end mixed terminal group, the female end mixed terminal group comprises two female end mixed terminal rows, and the female end mixed terminal rows are connected with the female end insulating seat. Each female end mixed terminal row comprises a plurality of female end signal terminals and female end grounding terminals which are alternately arranged, and the adjacent female end grounding terminals in the two female end mixed terminal rows are sequentially conducted to form short circuit; the connector male seat comprises a male end insulating seat and at least one male end mixed terminal group, the male end mixed terminal group comprises two male end mixed terminal columns, and each male end mixed terminal column comprises a plurality of male end signal terminals and male end grounding terminals which are alternately arranged. And the adjacent male end grounding terminals in the two male end mixed terminal rows are conducted in sequence to form short circuit. The utility model aims to provide a board-to-board connector which is used for improving crosstalk between signal terminals.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a board-to-board connector. Background Technology

[0002] A board-to-board connector is a connector used to connect different circuit boards in electronic devices. Its main function is to achieve electrical and mechanical connections, allowing the transmission of signals, power or data between one circuit board and another. It is widely used in networking, communications, power, medical, industrial, financial and office fields.

[0003] With the development of board-to-board connectors, thinness, small pitch, and high performance have gradually become market trends. This requires the signal terminals inside the connector to be arranged more densely. However, crosstalk can easily occur between densely arranged signal terminals, affecting the performance of the connector. Utility Model Content

[0004] The purpose of this invention is to solve the above problems and provide a board-to-board connector to improve crosstalk between signal terminals.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a board-to-board connector, including a female connector socket and a male connector socket. The female connector socket includes a female end insulating seat and at least one female end hybrid terminal group installed in the female end insulating seat. The female end hybrid terminal group includes two female end hybrid terminal columns. The female end hybrid terminal columns include a plurality of alternating female end signal terminals and female end ground terminals. The female end ground terminals are provided with a first shorting portion at both ends on one side. The female end ground terminals in the two female end hybrid terminal columns are staggered and connected sequentially through the first shorting portion to form a short circuit. The male connector socket includes a male end insulating seat and a male end hybrid terminal group installed in the male end insulating seat corresponding to the number of female end hybrid terminal groups. The male end hybrid terminal group includes two male end hybrid terminal columns. The male end hybrid terminal columns include a plurality of alternating male end signal terminals and male end ground terminals. The male end ground terminals are provided with a second shorting portion at both ends on one side. The male end ground terminals in the two male end hybrid terminal columns are staggered and connected sequentially through the second shorting portion to form a short circuit.

[0006] The aforementioned board-to-board connectors connect the female grounding terminals in the same mixed terminal group by staggering their placement and sequentially connecting them to form a short circuit. Similarly, they connect the male grounding terminals in the same mixed terminal group by staggering their placement and sequentially connecting them to form a short circuit. This improves crosstalk between signal terminals.

[0007] As an improvement to the female signal terminal, the female signal terminal includes a first fixing part, a pair of first elastic arms disposed at one end of the first fixing part, and a first welding part disposed at the other end of the first fixing part. The female insulating base is provided with a female signal terminal slot, and the female signal terminal slot includes a first positioning slot for mounting the first fixing part, a set of first clearance slots for accommodating the first elastic arms, and a first connector slot disposed between the first clearance slots.

[0008] As a further improvement to the female signal terminal, the first elastic arm includes a first bending portion, a connecting portion, a second bending portion, a first contact portion, and a first guide portion arranged in sequence. The first bending portion bends toward one side of the first fixing portion, the bending direction of the second bending portion is opposite to the bending direction of the first bending portion, and the bending direction of the first guide portion is the same as the bending direction of the first bending portion.

[0009] As an improvement to the female grounding terminal, the female grounding terminal includes a second fixing part, two pairs of second elastic arms disposed at one end of the second fixing part, and two second welding parts disposed at the other end of the second fixing part. The first shorting part is disposed on the side of the second fixing part, and the second welding part and the first shorting part are both located directly below the second elastic arms. In each female mixed terminal group, adjacent female grounding terminals are centrally symmetrically arranged and connected through the first shorting part at one end, so that two adjacent female grounding terminals are connected in an S-shape.

[0010] As a further improvement to the female grounding terminal, the second elastic arm includes a third bending portion, a fourth bending portion, a second contact portion, and a second guide portion arranged in sequence. The third bending portion bends toward one side of the second fixing portion, the bending direction of the fourth bending portion is opposite to the bending direction of the third bending portion, and the bending direction of the second guide portion is the same as the bending direction of the third bending portion.

[0011] As an improvement to the female end insulating seat, the female end insulating seat is provided with a female end grounding terminal slot, the female end grounding terminal is installed in the female end grounding terminal slot, the female end grounding terminal slot includes a second positioning slot for installing the second fixing part, two sets of second clearance slots for accommodating the second elastic arm, a second connection slot disposed between each set of second clearance slots, and two second clearance slots corresponding to the position of the first shorting part are connected.

[0012] As an improvement to the male signal terminal, the male signal terminal includes a third fixing part, a first snap-fit ​​part disposed at one end of the third fixing part, and a third welding part disposed at the other end of the third fixing part. A male signal terminal slot is provided on the male insulating base, and the third fixing part is installed in the male signal terminal slot.

[0013] As an improvement to the male grounding terminal, the male grounding terminal includes a fourth fixing part, two second snap-fit ​​parts disposed at one end of the fourth fixing part, and two fourth welding parts disposed at the other end of the fourth fixing part. The second short-circuit part is disposed on the side of the fourth fixing part. The fourth welding part and the second short-circuit part are both located directly below the second snap-fit ​​part. In each male mixed terminal group, adjacent male grounding terminals are arranged in a centrally symmetrical manner and are connected through the second short-circuit part at one end, so that two adjacent male grounding terminals are connected in an S-shape.

[0014] As an improvement to the male end insulating base, the male end insulating base is provided with a male end grounding terminal slot, and the male end grounding terminal is installed in the male end grounding terminal slot. The male end grounding terminal slot includes a third positioning slot for installing the fourth fixing part, a limiting slot for limiting the second snap-fit ​​part, and a connecting slot for accommodating the second short-circuit part.

[0015] As an improvement to this utility model, the male end insulating seat is provided with a first slot and a second slot on the left and right sides respectively, and a plurality of third slots on the front and rear sides. The cross-sectional dimensions of the first slot and the second slot are different. The female end insulating seat is provided with a first strip, a second strip, and a third strip at positions corresponding to the first slot, the second slot, and the third slot respectively. When the male connector and the female connector are connected, the first strip, the second strip, and the third strip are respectively inserted into the first slot, the second slot, and the third slot.

[0016] In combination with the above technical solutions, compared with the prior art, this utility model has the following beneficial effects:

[0017] This invention effectively improves crosstalk between signal terminals by using alternating female signal terminals and female ground terminals to isolate adjacent female signal terminals from each other. Simultaneously, the female ground terminals in each mixed female terminal group are sequentially shorted via a first shorting portion. Similarly, alternating male signal terminals and male ground terminals isolate adjacent male signal terminals from each other. Furthermore, the male ground terminals in each mixed male terminal group are sequentially shorted via a second shorting portion. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a board-to-board connector according to the present invention.

[0019] Figure 2 This is an exploded view of a board-to-board connector according to the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the female hybrid terminal group described in this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the male-end hybrid terminal group described in this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the male end insulating base described in this utility model.

[0023] Figure 6 yes Figure 5 A magnified view of a portion of position A in the diagram.

[0024] Figure 7 This is a structural schematic diagram of the male end insulating base described in this utility model from another perspective.

[0025] Figure 8 yes Figure 7 A magnified view of a portion of position B in the diagram.

[0026] Figure 9 This is a schematic diagram of the structure of the female end insulating base described in this utility model.

[0027] Figure 10 yes Figure 9 A magnified view of the area at position C.

[0028] Figure 11 This is a structural schematic diagram of the female end insulating base described in this utility model from another perspective.

[0029] Figure 12 yes Figure 11 A magnified view of a portion of position D.

[0030] Figure 13 This is a schematic diagram of the structure of the female signal terminal described in this utility model.

[0031] Figure 14 This is a schematic diagram of the structure of the female grounding terminal described in this utility model.

[0032] Figure 15 This is a schematic diagram of the structure of the male signal terminal described in this utility model.

[0033] Figure 16 This is a schematic diagram of the structure of the male grounding terminal described in this utility model.

[0034] Figure 17 This is a schematic diagram showing the state after the female hybrid terminal group and the male hybrid terminal group of this utility model are connected.

[0035] Figure 18 This is a top view of the female hybrid terminal group and the male hybrid terminal group described in this utility model after they are connected.

[0036] Figure 19This is a side view of the female hybrid terminal group and the male hybrid terminal group described in this utility model after they are connected.

[0037] Wherein: 1-Connector female socket, 11-Female end insulating base, 111-First retaining strip, 1111-First boss, 112-Second retaining strip, 1121-Second boss, 113-Third retaining strip, 114-Female end signal terminal slot, 1141-First positioning slot, 1142-First clearance slot, 1143-First connector slot, 115-Female end grounding terminal slot, 1151-Second positioning slot, 1152-Second clearance slot, 1153... - Second connector slot, 12- Female hybrid terminal group, 121- Female signal terminal, 1211- First fixing part, 1212- First elastic arm, 12121- First bending part, 12122- Connecting part, 12123- Second bending part, 12124- First contact part, 12125- First guide part, 1213- First welding part, 122- Female grounding terminal, 1221- Second fixing part, 1222- Second elastic arm 12221-Third bend, 12222-Fourth bend, 12223-Second contact, 12224-Second guide, 1223-Second soldering, 1224-First shorting, 2-Connector male socket, 21-Male insulating socket, 211-First slot, 212-Second slot, 213-Third slot, 214-Male signal terminal slot, 215-Male grounding terminal slot, 2151-Third positioning 2152 - Limiting groove, 216 - Connecting groove, 22 - Male mixed terminal group, 221 - Male signal terminal, 2211 - Third fixing part, 2212 - First snap-fit ​​part, 2213 - Third soldering part, 222 - Male grounding terminal, 2221 - Fourth fixing part, 2222 - Second snap-fit ​​part, 2223 - Fourth soldering part, 2224 - Second shorting part, 3 - First circuit board, 4 - Second circuit board, 5 - Solder ball. Detailed Implementation

[0038] To illustrate the technical features, objectives, and effects of this utility model in detail, the following description, in conjunction with the accompanying drawings and embodiments, provides a further detailed explanation. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0039] Please see the appendix Figure 1-19A board-to-board connector includes a female connector socket 1 and a male connector socket 2. The female connector socket 1 includes a female end insulating base 11 and a plurality of female end hybrid terminal groups 12 installed within the female end insulating base 11. Each female end hybrid terminal group 12 includes two female end hybrid terminal columns. Each female end hybrid terminal column includes a plurality of alternately arranged female end signal terminals 121 and female end ground terminals 122. Each female end ground terminal 122 has a first shorting portion 1224 at both ends on one side. The female end ground terminals 122 in the two female end hybrid terminal columns are staggered and sequentially shorted through the first shorting portion 1224. The sequentially shorted female end ground terminals 122 in each female end hybrid terminal group 12 form a short circuit, thereby improving the connection of the female end signal terminals 121 and 1222. Crosstalk between 1; The male connector 2 includes a male insulating base 21 and a male mixed terminal group 22 installed in the male insulating base 21, corresponding to the number of female mixed terminal groups 12. The male mixed terminal group 22 includes two male mixed terminal columns. The male mixed terminal column includes several alternating male signal terminals 221 and male ground terminals 222. The male ground terminals 222 are provided with a second shorting part 2224 at both ends on one side. The male ground terminals 222 in the two male mixed terminal columns are staggered and connected sequentially through the second shorting part 2224 to form a short circuit. The male ground terminals 222 in each male mixed terminal group 22 are shorted by the sequentially connected male ground terminals 222, thereby improving the crosstalk between the male signal terminals 221. In use, connector female 1 is connected to the first circuit board 3, and connector male 2 is connected to the second circuit board 4. After connecting connector female 1 and connector male 2, the corresponding female signal terminals 121 and male signal terminals 221, as well as the female ground terminal 122 and male ground terminal 222, are connected one-to-one, enabling the transmission of signals, power, or data between the first circuit board 3 and the second circuit board 4. Because the female ground terminal 122 and male ground terminal 222 are connected one-to-one, a short circuit is also formed between the female ground terminal 122 and male ground terminal 222, thereby ensuring shielding between adjacent signal terminals and improving crosstalk between adjacent signal terminals.

[0040] Based on the above embodiments, the female signal terminal 121 includes a first fixing part 1211, a pair of first elastic arms 1212 disposed at one end of the first fixing part 1211, and a first welding part 1213 disposed at the other end of the first fixing part 1211. Specifically, the first elastic arm 1212 includes a first bending part 12121, a connecting part 12122, a second bending part 12123, a first contact part 12124, and a first guide part 12125 disposed sequentially. The first bending part 12121 bends toward one side of the first fixing part 1211, the bending direction of the second bending part 12123 is opposite to the bending direction of the first bending part 12121, and the bending direction of the first guide part 12125 is the same as the bending direction of the first bending part 12121. Correspondingly, the female end insulating base 11 is provided with a female end signal terminal slot 114. The female end signal terminal slot 114 includes a first positioning slot 1141 for mounting the first fixing part 1211, a set of first clearance slots 1142 for accommodating the first elastic arm 1212, and a first connector slot 1143 disposed between the first clearance slots 1142. The male end signal terminal 221 includes a third fixing part 2211, a first snap-fit ​​part 2212 disposed at one end of the third fixing part 2211, and a third welding part 2213 disposed at the other end of the third fixing part 2211. Correspondingly, the male end insulating base 21 is provided with a male end signal terminal slot 214, and the third fixing part 2211 is installed in the male end signal terminal slot 214. During connection, the first guide portion 12125 is used to guide the first snap-fit ​​portion 2212, the first clearance groove 1142 is used to accommodate the first elastic arm 1212 and also provides space for the elastic deformation of the first elastic arm 1212, so that the first snap-fit ​​portion 2212 can be smoothly snapped into the first elastic arm 1212, and the first slot 1143 is used to accommodate the first snap-fit ​​portion 2212.

[0041] Based on the above embodiments, the female grounding terminal 122 includes a second fixing part 1221, two pairs of second elastic arms 1222 disposed at one end of the second fixing part 1221, and two second welding parts 1223 disposed at the other end of the second fixing part 1221. The first shorting part 1224 is disposed on the side of the second fixing part 1221. The second welding part 1223 and the first shorting part 1224 are both located directly below the second elastic arms 1222. In each female hybrid terminal group 12, two adjacent female grounding terminals 122 are centrally symmetrically arranged and connected through the first shorting part 1224, so that the two adjacent female grounding terminals 122 are connected in an S-shape. That is, the female grounding terminals 122 in each female hybrid terminal group 12 are connected sequentially through the first shorting part 1224 to form a short circuit, thereby effectively improving the crosstalk between the female signal terminals 121.

[0042] Specifically, the second elastic arm 1222 includes a third bending portion 12221, a fourth bending portion 12222, a second contact portion 12223, and a second guide portion 12224 arranged sequentially. The third bending portion 12221 bends towards one side of the second fixing portion 1221. The bending direction of the fourth bending portion 12222 is opposite to that of the third bending portion 12221. The bending direction of the second guide portion 12224 is the same as that of the third bending portion 12221. During connection, the second guide portion 12224 guides the male grounding terminal 222, and the fourth bending portion 12222 uses elasticity to keep the second contact portion 12223 in contact with the male grounding terminal 222.

[0043] Correspondingly, a female end grounding terminal groove 115 is provided on the female end insulating base 11. The female end grounding terminal 122 is installed in the female end grounding terminal groove 115. The female end grounding terminal groove 115 includes a second positioning groove 1151 for installing the second fixing part 1221, two sets of second clearance grooves 1152 for accommodating the second elastic arm 1222, and a second connecting slot 1153 disposed between each set of second clearance grooves 1152. The two second clearance grooves 1152 corresponding to the positions of the first shorting part 1224 are connected to each other, so that after installation, the first shorting parts 1224 on two adjacent female end grounding terminals 122 abut together in the connected second clearance grooves 1152.

[0044] Based on the above embodiments, the male grounding terminal 222 includes a fourth fixing part 2221, two second snap-fit ​​parts 2222 disposed at one end of the fourth fixing part 2221, two fourth welding parts 2223 disposed at the other end of the fourth fixing part 2221, and a second shorting part 2224 disposed on the side of the fourth fixing part 2221. The fourth welding part 2223 and the second shorting part 2224 are both located directly below the second snap-fit ​​parts 2222. In each male mixed terminal group, adjacent male grounding terminals 222 are centrally symmetrically arranged and connected through the second shorting part 2224, so that two adjacent male grounding terminals 222 are connected in an S-shape. That is, the male grounding terminals 222 in each male mixed terminal group 22 are sequentially connected through the second shorting part 2224 to form a short circuit, thereby effectively improving the crosstalk between the male signal terminals 221.

[0045] Correspondingly, the male end insulating base 21 has a male end grounding terminal slot 215, and the male end grounding terminal 222 is installed in the male end grounding terminal slot 215. The male end grounding terminal slot 215 includes a third positioning slot 2151 for installing the fourth fixing part 2221, a limiting slot 2152 for limiting the second snap-fit ​​part 2222, and a connecting slot 216 for accommodating the second short-circuit part 2224. After installation, the second short-circuit parts 2224 of two adjacent male end grounding terminals 222 abut together in the connecting slot 216.

[0046] To facilitate positioning when connecting the female connector 1 and the male connector 2, the male end insulating base 21 is provided with a first slot 211 and a second slot 212 on its left and right sides, and a plurality of third slots 213 on its front and rear sides. The first slot 211 and the second slot 212 have different cross-sectional dimensions, which serves to prevent mistaken connection. The female end insulating base 11 is provided with a first retaining strip 111, a second retaining strip 112, and a third retaining strip 113 at positions corresponding to the first slot 211, the second slot 212, and the third slot 213, respectively. When the male connector 2 and the female connector 1 are connected, the first retaining strip 111, the second retaining strip 112, and the third retaining strip 113 are respectively inserted into the first slot 211, the second slot 212, and the third slot 213. In order to make the male end insulating seat 21 and the female end insulating seat 11 securely engaged, a boss can be provided at the engaging end of any one or more of the first locking strip 111, the second locking strip 112 and the third locking strip 113, and a groove can be opened in the corresponding locking slot. For example, the engaging end of the first locking strip 111 is provided with a first boss 1111, and the engaging end of the second locking strip 112 is provided with a second boss 1121.

[0047] To facilitate the connection between the connector and the circuit board, solder balls 5 can be pre-placed on the connection surfaces of the first soldering part 1213, the second soldering part 1223, the third soldering part 2213 and the fourth soldering part 2223, thereby improving the soldering efficiency.

[0048] The present invention and its embodiments have been described in detail above. This description is not restrictive, and the accompanying drawings only show some embodiments of the present invention. The actual structure is not limited thereto. Those skilled in the art, inspired by this description, can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and all of these should fall within the protection scope of the present invention.

Claims

1. A board-to-board connector, comprising a connector female and a connector male, characterized in that: The connector female socket includes a female end insulating base and at least one female end hybrid terminal group installed in the female end insulating base. The female end hybrid terminal group includes two female end hybrid terminal columns. The female end hybrid terminal columns include a plurality of alternating female end signal terminals and female end ground terminals. One side of the female end ground terminal is provided with a first shorting part at both ends. The female end ground terminals in the two female end hybrid terminal columns are staggered and are connected sequentially through the first shorting part to form a short circuit. The male connector includes a male insulating base and a male mixed terminal group installed in the male insulating base, which corresponds to the number of female mixed terminal groups. The male mixed terminal group includes two male mixed terminal columns. Each male mixed terminal column includes several alternating male signal terminals and male ground terminals. Each male ground terminal has a second shorting part at both ends on one side. The male ground terminals in the two male mixed terminal columns are staggered and connected sequentially through the second shorting part to form a short circuit. The female signal terminal includes a first fixing part, a pair of first elastic arms disposed at one end of the first fixing part, and a first welding part disposed at the other end of the first fixing part. The female insulating base is provided with a female signal terminal slot. The female signal terminal slot includes a first positioning slot for installing the first fixing part, a set of first clearance slots for accommodating the first elastic arms, and a first connector slot disposed between the first clearance slots. The female grounding terminal includes a second fixing part, two pairs of second elastic arms disposed at one end of the second fixing part, and two second welding parts disposed at the other end of the second fixing part. The first shorting part is disposed on the side of the second fixing part. The second welding part and the first shorting part are both located directly below the second elastic arms. In each female mixed terminal group, adjacent female grounding terminals are centrally symmetrically arranged and connected through the first shorting part at one end, so that two adjacent female grounding terminals are connected in an S-shape. The male signal terminal includes a third fixing part, a first snap-fit ​​part disposed at one end of the third fixing part, and a third welding part disposed at the other end of the third fixing part. A male signal terminal slot is provided on the male insulating base, and the third fixing part is installed in the male signal terminal slot. The male grounding terminal includes a fourth fixing part, two second snap-fit ​​parts disposed at one end of the fourth fixing part, and two fourth welding parts disposed at the other end of the fourth fixing part. The second short-circuit part is disposed on the side of the fourth fixing part. The fourth welding part and the second short-circuit part are both located directly below the second snap-fit ​​part. In each male mixed terminal group, adjacent male grounding terminals are arranged in a centrally symmetrical manner and are connected through the second short-circuit part at one end, so that two adjacent male grounding terminals are connected in an S-shape.

2. A board-to-board connector according to claim 1, characterized in that: The first elastic arm includes a first bending portion, a connecting portion, a second bending portion, a first contact portion, and a first guide portion arranged sequentially. The first bending portion bends toward one side of the first fixing portion, the bending direction of the second bending portion is opposite to the bending direction of the first bending portion, and the bending direction of the first guide portion is the same as the bending direction of the first bending portion.

3. A board-to-board connector according to claim 1, characterized in that: The second elastic arm includes a third bending portion, a fourth bending portion, a second contact portion, and a second guide portion arranged sequentially. The third bending portion bends toward one side of the second fixing portion, the bending direction of the fourth bending portion is opposite to the bending direction of the third bending portion, and the bending direction of the second guide portion is the same as the bending direction of the third bending portion.

4. A board-to-board connector according to claim 1, characterized in that: The female end insulating base is provided with a female end grounding terminal slot, and the female end grounding terminal is installed in the female end grounding terminal slot. The female end grounding terminal slot includes a second positioning slot for installing the second fixing part, two sets of second clearance slots for accommodating the second elastic arm, and a second connection slot disposed between each set of second clearance slots. The two second clearance slots corresponding to the first shorting part are connected.

5. A board-to-board connector according to claim 1, characterized in that: The male end insulating base is provided with a male end grounding terminal slot, and the male end grounding terminal is installed in the male end grounding terminal slot. The male end grounding terminal slot includes a third positioning slot for installing the fourth fixing part, a limiting slot for limiting the second snap-fit ​​part, and a connecting slot for accommodating the second short-circuit part.

6. A board-to-board connector according to claim 1, characterized in that: The male end insulating base has a first slot and a second slot on its left and right sides, and a plurality of third slots on its front and rear sides. The first slot and the second slot have different cross-sectional dimensions. The female end insulating base has a first strip, a second strip, and a third strip at positions corresponding to the first slot, the second slot, and the third slot, respectively. When the male connector and the female connector are connected, the first strip, the second strip, and the third strip are respectively inserted into the first slot, the second slot, and the third slot.

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