TWI479741B - Board connector - Google Patents

Description

Board end connector

This invention relates to a connector and, more particularly, to a board end connector that reduces crosstalk interference.

Today's connectors can be divided into board-end connectors for mounting on a circuit board and line-end connectors for connecting to wires according to installation differences. The line end connector can be inserted into the board end connector to achieve signal transmission. The conventional board end connector comprises an insulating seat and a plurality of terminals mounted on the insulating seat, and the terminals are mostly free of shielding. Therefore, when the board end connector transmits signals, crosstalk between the terminals is easy to occur (cross) -talk) interference.

Therefore, the present inventors have felt that the above-mentioned deficiencies can be improved, and they have devoted themselves to research and cooperated with the application of the theory, and finally proposed a present invention which is reasonable in design and effective in improving the above-mentioned defects.

Embodiments of the present invention provide a board-end connector that can effectively reduce crosstalk interference through a structural design.

The embodiment of the invention provides a board end connector, comprising: an insulating seat, which is long and has a length direction defined as a first direction, the insulating seat comprises a slot body and a tongue plate, the slot body has a bottom a wall and a ring sidewall surrounding the periphery of the bottom wall, the tongue plate protrudingly extending from the inner edge of the bottom wall in the first direction; and a plurality of conductive terminals penetrating the bottom wall of the groove body, each of the conductive The portion of the terminal in the slot is defined as a plug portion, and a portion of each of the conductive terminals located outside the slot is defined as a fixed portion, and a distance from the end of each plug portion to the bottom wall is smaller than the end of the tongue plate to the a distance between the bottom walls, wherein the conductive terminals are respectively arranged in two rows along the first direction, and the plug portions of the two rows of conductive terminals are respectively disposed on opposite sides of the tongue plate, and the plugging of each conductive terminal There is a spacing between the portion and the tongue.

In summary, the board end connector provided by the embodiment of the present invention is disposed between the two rows of conductive terminals through the tongue plate, and the conductive terminals are spaced apart from the tongue plate so that the board end connector transmits the signal. The magnetic fields formed by the two rows of conductive terminals can be effectively isolated from each other by the design of the tongue and the pitch, thereby reducing crosstalk interference of the board end connector.

The detailed description of the present invention and the accompanying drawings are to be understood by the claims The scope is subject to any restrictions.

100‧‧‧Signal transmission device

1‧‧‧Board connector

11‧‧‧Insulation seat

111‧‧‧

1111‧‧‧ bottom wall

1112‧‧‧ ring side wall

1113‧‧‧ Plug interface

1114‧‧‧ accommodating holes

1115‧‧‧Danger block

1116‧‧‧Flange

1117‧‧‧Support column

1118‧‧‧Positioning column

112‧‧‧ tongue plate

1121‧‧

12‧‧‧Electrical terminals

121‧‧‧Interface

1211‧‧‧flat surface

122‧‧‧Fixed Department

2‧‧‧Wire end connector

21‧‧‧Insulated body

211‧‧‧ Cover Department

2111‧‧‧First baffle

2112‧‧‧second baffle

2113‧‧‧ side panels

2114‧‧‧ Extension board

2115‧‧‧ Missing slot

212‧‧‧ Inside recess

2121‧‧ ‧ tongue groove

2122‧‧‧ first partition

2123‧‧‧First partition wall

2124‧‧‧Second partition

2125‧‧‧Second partition

2126‧‧‧Bearing board

2127‧‧‧Guiding block

213‧‧‧Care Department

2131‧‧‧Boom arm

2132‧‧‧ buckle block

214‧‧‧First plug

215‧‧‧Second plug

22‧‧‧First terminal

221‧‧‧ first contact

222‧‧‧First wiring department

23‧‧‧second terminal

231‧‧‧Second contact

232‧‧‧Second wiring department

24‧‧‧ cover

3‧‧‧First wire

4‧‧‧Second wire

D1‧‧‧ first direction

D2‧‧‧ second direction

D‧‧‧plug direction

L1‧‧‧ first distance

L2‧‧‧Second distance

L3‧‧‧ third distance

1A is an exploded perspective view of a signal transmission device of the present invention.

FIG. 1B is an exploded perspective view showing another perspective of the signal transmission apparatus of the present invention.

2 is a perspective, cross-sectional view of the board end connector of the present invention.

3 is a schematic view of a board end connector of the present invention.

4 is another perspective view of the board end connector of the present invention.

Figure 5 is a perspective, cross-sectional view of the wire end connector of the present invention.

Figure 6 is a perspective view showing a variation of the wire end connector of the present invention.

Figure 7 is a cross-sectional view showing the first wire and the second wire of the wire end connector of the present invention.

Figure 8 is a perspective view of the signal transmission device of the present invention.

Figure 9 is a cross-sectional view showing the length of the signal transmission device of Figure 8 in the longitudinal direction.

Figure 10 is a cross-sectional view showing the width direction of the signal transmission device of Figure 8.

Please refer to FIG. 1A to FIG. 10, which are an embodiment of the present invention. It is to be noted that the related numbers and shapes referred to in the embodiments are only used to specifically describe the embodiments of the present invention. In order to understand its content, not to limit the issue. The scope of rights.

As shown in FIG. 1A and FIG. 1B, the present embodiment provides a signal transmission device 100 including a board end connector 1 and a line end connector 2, and the line end connector 2 can be detachably inserted in a plugging direction D. The board end connector 1. The construction of the board end connector 1 and the line end connector 2 will be described below, and then the connection relationship between the two will be described.

Referring to FIG. 2 and referring to FIG. 3 and FIG. 4 as appropriate, the board end connector 1 includes an insulating base 11 and a plurality of conductive terminals 12. The insulating seat 11 has an integrally formed structure. The insulating seat 11 has a long shape and its longitudinal direction is defined as a first direction D1, and its width direction is defined as a second direction D2. The first direction D1 and the second direction D2 are defined. Vertical to each other. The insulating seat 11 includes a groove body 111 and a tongue plate 112. The groove body 111 has a bottom wall 1111 and a ring side wall 1112 surrounding the periphery of the bottom wall 1111.

In more detail, the ring side wall 1112 has a substantially rectangular cross section, and one end (bottom) inner edge of the ring side wall 1112 is connected to the long side edges of the bottom wall 1111, and the other end inner edge of the ring side wall 1112 (ie, away from the bottom wall) The top edge of the ring sidewall 1112 of 1111 defines an insertion interface 1113. The opposite end edges of the bottom wall 1111 (the two end edges of the bottom wall 1111 in the first direction D1) and the bottom inner edge of the ring sidewall 1112 respectively define a through hole 1114.

Furthermore, the ring side wall 1112 has two anti-dead blocks 1115 and two flanges 1116. The anti-slipping block 1115 and the flange 1116 are located at the inner side of the ring side wall 1112, and the anti-depression block 1115 and the flange 1116 are located on the ring side wall 1112. A portion away from the bottom wall 1111. In more detail, the two flanges 1116 are respectively located on the inner sides of the two short side edges of the top of the ring side wall 1112, and the two anti-dwelling blocks 1115 are respectively located at the opposite sides of the two flanges 1116, and In the formation of block 1115, the plug interface 1113 is substantially T-shaped. In another perspective, the distance between the two anti-sludge blocks 1115 is smaller than the distance between the two flanges 1116, and the distance between the two flanges 1116 is smaller than the maximum inner edge spacing of the ring sidewalls 1112.

In addition, the ring sidewall 1112 also has a plurality of support columns 1117 (FIG. 4), and the support posts 1117 are located at the bottom of the ring sidewalls 1112 (ie, the portions of the ring sidewalls 1112 away from the insertion interface 1113) and are spaced apart from each other. The two ends of the bottom edge of the bottom wall 1111 (such as the lower right end and the upper left end of the bottom wall 1111 of FIG. 2) are respectively formed with a positioning post 1118, and the shapes or positions of the two positioning posts 1118 are different.

The tongue plate 112 is formed to protrude from a substantially central portion of the inner surface of the bottom wall 1111 in a first direction D1, and the tongue plate 112 protrudes from the insertion interface 1113. In more detail, the tongue 112 is substantially elongated and hollow, and the major axis direction of the tongue 112 is parallel to the first direction D1. The tongue plate 112 is recessed from the protruding side of the insertion preventing interface 1113 to the bottom wall 1111 at a long side thereof away from the two blocking blocks 1115 to form a guiding groove 1121.

The conductive terminal 12 is disposed in the bottom wall 1111 of the slot body 111, and a portion of each of the conductive terminals 12 in the slot body 111 is defined as a plug portion 121, and each of the conductive terminals 12 is located outside the slot body 111. It is defined as a fixed portion 122. The insertion portion 121 of each of the conductive terminals 12 is located in the space surrounded by the ring side wall 1112 and does not protrude from the insertion interface 1113, and the distance from the end of each insertion portion 121 to the bottom wall 1111 is smaller than the end of the tongue 112. The distance of the bottom wall 1111, that is, the height of the tongue 112 exceeds the height of each of the conductive terminals 12 located inside the slot 111. The distance from the end of the fixing portion 122 of each of the conductive terminals 12 to the bottom wall 1111 is less than or equal to the distance from the end of the positioning post 1118 to the bottom wall 1111, that is, the fixing portion 122 of each of the conductive terminals 12 does not exceed the positioning post 1118.

Furthermore, the conductive terminals 12 are respectively arranged in two rows along the first direction D1, and the plug portions 121 of the two rows of conductive terminals 12 are respectively disposed on opposite sides of the tongue plate 112 (such as the upper side of the tongue plate 112 in FIG. 3). And the lower side), and a gap between the insertion portion 121 of each of the conductive terminals 12 and the tongue 112.

In more detail, in the second direction D2, one of the conductive terminals 12 of any one of the rows of conductive terminals 12 corresponds to one of the conductive terminals 12 of the other row of conductive terminals 12. Wherein each row of conductive terminals 12 has a plurality of signal terminals and a plurality of ground terminals, each grounded The opposite sides of the terminal are respectively adjacent to the two signal terminals of the signal terminals, and in the second direction D2, one ground terminal of any one of the conductive terminals 12 corresponds to one ground terminal of the other column of the conductive terminals 12. The two opposite conductive terminals 12 in the second direction D2 have a greater distance from the tongue 112 than the adjacent two conductive terminals 12 of any one of the columns.

The length value of the tongue plate 112 corresponding to the first direction D1 is not less than the distance value of each column of the conductive terminals 12 corresponding to the first direction D1. In more detail, the insertion portions 121 of the conductive terminals 12 are substantially flat and have a flat surface 1211, and the flat portions 1211 of the insertion portions 121 of the conductive terminals 12 are perpendicular to the first Direction D1.

The two rows of conductive terminals 12 of the present embodiment are substantially mirror symmetrical with respect to the tongue 112. Incidentally, the guide groove 1121 is formed by a recess of the tongue plate 112 adjacent to one of the two sides of the two rows of conductive terminals 12, and the configuration of the guide groove 1121 is extended from the top end of the tongue plate 112 to The bottom wall 1111.

The above is a structural description of the board-end connector 1 according to the embodiment of the present invention. The tongue 112 is disposed between the two rows of conductive terminals 12 and the conductive terminals 12 are spaced apart from the tongue 112 so that the conductive terminals 12 transmit signals. The magnetic fields formed by the two rows of conductive terminals 12 can be effectively isolated from each other through the tongue plate 112 and the pitch design, thereby reducing crosstalk interference of the board end connector 1. The preferred design of the board-end connector 1 for preventing crosstalk interference, that is, the technical features as described above, is not limited to this in practical applications.

If the board end connector 1 is mounted on a circuit board (not shown), the board end connector 1 is inserted into the circuit board with the fixing portion 122 of the conductive terminal 12 and the positioning post 1118 of the insulating base 11 and the insulating seat The support post 1117 of 11 abuts on the circuit board. The fixing portion 122 of the conductive terminal 12 does not exceed the positioning post 1118, so that the positioning post 1118 is inserted into the circuit board before or at the same time as the fixing portion 122 of the conductive terminal 12, thereby avoiding the conductive terminal caused by the wrong insertion direction. The fixing portion 122 of 12 is damaged.

Referring to FIG. 1A and FIG. 1B, the wire end connector 2 includes an insulative body 21, A plurality of first terminals 22, a plurality of second terminals 23, and a cover body 24. The insulative housing 21 has an integrally formed structure, and the insulative housing 21 includes a cover portion 211, an inner recess 212, and two resilient engaging portions 213.

The inner concave portion 212 is connected to the inner edge of the outer cover portion 211 and is located inside the outer cover portion 211, and the inner concave portion 212 surrounds the tongue groove 2121 defined by a long shape. The first plug end 214 and the second plug end 215 are respectively defined on opposite sides of the slot of the tongue slot 2121, and the first plug end 214 and the second plug end 215 are substantially The elongated type is disposed in a plane plane parallel to each other, and the two engaging portions 213 are respectively formed from extensions of opposite ends of the cover portion 211 (left side and right side of the cover portion 211 in FIG. 1B).

In more detail, referring to FIG. 5 and referring to FIG. 1A and FIG. 1B as appropriate, the cover portion 211 includes a first baffle 2111, a second baffle 2112, two side plates 2113, and an extension plate 2114. The first baffle 2111 and the second baffle 2112 are substantially parallel to each other, and the extension plate 2114 is away from the second baffle 2112 from the second baffle end 215 (such as the top end of the second baffle 2112 in FIG. 5). ) formed to extend away from the first baffle 2111. And one side plate 2113 of the two side plates 2113 is connected to one end of the first baffle 2111 and the second baffle 2112 and one side edge of the extension plate 2114, and the other side plate 2113 of the two side plates 2113 is connected to The other end of the first baffle 2111 and the second baffle 2112 are adjacent to each other and the other side of the extension plate 2114.

The inner recess 212 includes a first partition 2122, a plurality of first partitions 2123, a second partition 2124, a plurality of second partitions 2125, and a carrier plate 2126. The first partition 2122 is adjacent to and parallel to the first baffle 2111. The first partitions 2123 are respectively connected between the first baffle 2122 and the first baffle 2111, and the first baffle 2122 is at one end. One end of a baffle 2111 and one end of the first partition wall 2123 are substantially coplanar and are defined as the first plug end 214.

The second partition 2124 is adjacent to and parallel to the second baffle 2112. The second partitions 2125 are respectively connected between the second baffle 2124 and the second baffle 2112, and the second One end of the partition 2124, one end of the second baffle 2112, and one end of the second partition wall 2125 are substantially coplanar and are defined as the second plug end 215. The opposite long sides of the carrying plate 2126 are respectively connected between the portion of the first partition 2122 away from the first plug end 214 and the portion of the second partition 2124 away from the second plug end 215, and the carrying board 2126 is opposite. The two short sides are respectively connected to the two side plates 2113. The tongue groove 2121 is formed by the first partition 2122, the second partition 2124, and the carrier plate 2126. Furthermore, the insulative housing 21 is formed with two guiding blocks 2127 (as shown in FIGS. 1B and 7 ) in the tongue groove 2121 , and the two guiding blocks 2127 are parallel to each other and from the carrier plate 2126 and along the first partition 2122 . The extension is formed.

The first partition 2122 is separated from the second partition 2124 by a first distance L1. The first distance L1 is greater than the distance between the first partition 2122 and the first baffle 2111, and is greater than the second partition 2124 and the second partition. The distance between the two baffles 2112. Further, when viewed from the depth direction of the tongue groove 2121 (ie, the insertion and removal direction D, which corresponds to the longitudinal direction of the first terminal 22), the lengths of the first spacer 2122 and the second spacer 2124 are substantially the same, first The length of the baffle 2111 is greater than the length of the first baffle 2122, and the length of the second baffle 2112 is less than the length of the second baffle 2124.

The two engaging portions 213 each have a resilient arm 2131 and a latching block 2132. The two elastic arms 2131 are respectively formed from the two side plates 2113 of the cover portion 211, and the front end portion of each elastic arm 2131 is beyond the first The end 214 is inserted, and the end portion of each of the elastic arms 2131 is located beside its extended side plate 2113 and is a free end. The two fastening blocks 2132 are respectively formed from the outer edges of the two elastic arms 2131, and the two side plates 2113 of the outer cover portion 211 are recessed and formed with a notch 2115 corresponding to the two fastening blocks 2132.

Thereby, the end portions of the two elastic arms 2131 can be elastically pressed, so that the elastic arm 2131 can swing with the front end portion of the first insertion end 214 as a fulcrum, and the two fastening blocks 2132 are respectively oriented. The two notches 2115 are displaced in the direction, and the notch 2115 provides the space required for the disengagement block 2132 to be displaced.

In addition, the engaging portion 213 of the embodiment of the present invention is illustrated by taking FIG. 1A as an example. However, other possible implementations are not excluded. For example, the engaging portion 213 of the embodiment of the present invention can also be formed as shown in FIG. 6.

Referring to FIG. 5 , and as appropriate, FIG. 7 , each of the first terminals 22 has a first contact portion 221 and a first connecting portion 222 bent perpendicularly from the first contact portion 221 . The first contact portion 221 of the first terminal 22 is disposed between the first spacer 2122 and the first barrier 2111 and does not protrude from the first insertion end 214, and any two adjacent first contacts 221 A first partition wall 2123 is disposed therebetween, and a distance between any two adjacent first contact portions 221 is smaller than the first distance L1. The first terminal portion 222 of the first terminal 22 is disposed on the carrier plate 2126, and a substantially central portion of each of the first terminal portions 222 is electrically connected to a first wire 3.

Each of the second terminals 23 has a second connecting portion 231 and a second connecting portion 232 bent perpendicularly from the second contact portion 231 . The second contact portion 231 of the second terminals 23 is disposed between the second partition plate 2124 and the second baffle 2112 and does not protrude from the second plug end 215, and any two adjacent second contact portions 231 A second partition wall 2125 is provided between them, and the distance between the second contact portions 231 of any two adjacent second terminals 23 is smaller than the first distance L1. The second terminal portion 232 of the second terminal 23 is disposed on the extension board 2114, and a substantially central portion of each of the second connection portions 232 is electrically connected to a second wire 4.

The distance between the first terminal portion 222 of each first terminal 22 and the second terminal portion 232 adjacent thereto is greater than the distance between any two adjacent first contact portions 221 . The distance between the first contact portions 221 of any two adjacent first terminals 22 is substantially equal to the distance between the second contact portions 231 of any two adjacent second terminals 23. Moreover, the distance between the first contact portion 221 of each of the first terminals 22 and the adjacent second contact portion 231 is defined as a second distance L2; and each of the first connection portions 222 is electrically connected to the first The distance between the portion of the wire 3 and the portion of the adjacent second terminal portion 232 for electrically connecting to the second wire 4 is defined as a third distance L3, and the third distance L3 is substantially equal to the second distance L2.

In other words, the first terminals 22 include a plurality of signal terminals and a plurality of connections. The ground terminal, the second terminal 23 includes a plurality of signal terminals and a plurality of ground terminals; and in the direction of the first distance L1, the signal terminals of the first terminals 22 respectively correspond to the second terminals 23 The signal terminals, the ground terminals of the first terminals 22 respectively correspond to the ground terminals of the second terminals 23.

One end of the cover body 24 is pivotally disposed at a portion of the two side plates 2113 away from the first insertion end 214, and the other end of the cover body 24 is detachably fastened to the first baffle plate 2111.

It should be noted that when the first wire 3 and the second wire 4 are respectively placed on the first wire portion 222 and the second wire portion 232, and the cover body 24 has not been fastened to the first baffle plate 2111, the first wire is 3 and the second wire 4 are respectively blocked by the insulating layer (not shown) to be electrically connected to the first wire portion 222 and the second wire portion 232. When the cover body 24 is fastened to the first baffle 2111, the inner edge of the cover body 24 will press the first wire 3 and the second wire 4, so that the insulating layers of the first wire 3 and the second wire 4 are pressed and respectively The first connecting portion 222 and the second connecting portion 232 are pierced so that the first connecting portion 222 and the second connecting portion 232 are respectively connected to the core wires located in the insulating layer of the first wire 3 and the second wire 4, thereby The first wiring portion 222 and the second wiring portion 232 are electrically connected to the first wire 3 and the second wire 4 respectively.

The above is a structural description of the wire end connector 2 according to the embodiment of the present invention. The structure of the insulative housing 21 is designed such that the first terminal 22 and the second terminal 23 mounted on the insulative housing 21 can transmit signals to the line connector 2. The magnetic field formed by each of the first terminal 22 and the second terminal 23 is effectively isolated, thereby reducing crosstalk interference of the line end connector 2. The preferred design of the line connector 2 for preventing crosstalk interference, that is, the technical features as described above, is not limited to this in practical applications.

Next, the connection relationship between the board end connector 1 and the line end connector 2 will be roughly described below. Referring to FIG. 8 to FIG. 10, when the wire end connector 2 is inserted into the board end connector 1 in the insertion and removal direction D, the guiding block 2127 of the line end connector 2 is guided by the guiding slot 1121 of the tongue plate 112. Referring to FIG. 1A and FIG. 1B, the guiding block 2127 is fitted into the guiding groove 1121, and the tongue 112 is received in the tongue groove 2121, and the first terminal 22 is The contact portion 221 and the second contact portion 231 of the second terminal 23 abut against the insertion portion 121 of the two rows of conductive terminals 12, respectively. In the above-mentioned insertion process, the portions of the two elastic arms 2131 beyond the first insertion end 214 are respectively inserted through the insertion interface 1113 and disposed in the two receiving holes 1114 and abutting against the bottom wall 1111. On the opposite ends, the two fastening blocks 2132 respectively pass through the insertion interface 1113 and are fastened to the flange 1116 of the ring side wall 1112.

[Possible effects of embodiments of the present invention]

In summary, the board end connector provided by the embodiment of the present invention is disposed between the two rows of conductive terminals through the tongue plate, and the conductive terminals are spaced apart from the tongue plate so that the board end connector transmits the signal. The magnetic fields formed by the two rows of conductive terminals can be effectively isolated from each other by the design of the tongue and the pitch, thereby reducing crosstalk interference of the board end connector.

Furthermore, the line end connector provided by the embodiment of the present invention is designed through the structure of the insulative housing, so that the first terminal and the second terminal mounted on the insulative housing can effectively isolate the first signal when the line end connector transmits a signal. The magnetic field formed by each of the terminal and the second terminal further reduces crosstalk interference of the line connector.

Further, when the line end connector is plugged into the board end connector, the first terminals and the connected conductive terminals thereof are blocked by the tongue plate, the first baffle, and the second baffle, and the The two terminals and the connected conductive terminals are separated, so that the magnetic field formed when the first terminals and the connected conductive terminals transmit signals can effectively transmit signals to the second terminals and the connected conductive terminals thereof. The magnetic fields formed are isolated from each other to reduce crosstalk between the two.

In addition, a tongue plate is formed through the board end connector and the line end connector is formed with a tongue and groove groove, which not only helps to reduce crosstalk interference, but also achieves the effect of preventing misinsertion. The accommodating hole and the anti-dead block are formed through the board end connector, and the line end connector is formed with a latching portion beyond the first plug end, so that both the board end connector and the line end connector can be contacted before the terminal By the snap-in part, it is placed in the anti-dead block to avoid the terminal error. Bad and damaged.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent variations and modifications of the scope of the invention are intended to be within the scope of the invention.

1‧‧‧Board connector

11‧‧‧Insulation seat

111‧‧‧

1111‧‧‧ bottom wall

1112‧‧‧ ring side wall

1113‧‧‧ Plug interface

1114‧‧‧ accommodating holes

1115‧‧‧Danger block

1116‧‧‧Flange

1118‧‧‧Positioning column

112‧‧‧ tongue plate

1121‧‧

12‧‧‧Electrical terminals

121‧‧‧Interface

1211‧‧‧flat surface

122‧‧‧Fixed Department

D1‧‧‧ first direction

D2‧‧‧ second direction

Claims (10)

A board end connector includes: an insulating seat having a long shape and a longitudinal direction defined as a first direction, the insulating base comprising a slot body and a tongue plate, the slot body having a bottom wall and surrounding a ring side wall of the bottom wall of the bottom wall, the tongue plate is formed to protrude from the inner edge of the bottom wall in the first direction; and a plurality of conductive terminals are disposed on the bottom wall of the groove body, and each of the conductive terminals is located in the groove body The portion is defined as a plug portion, and a portion of each of the conductive terminals outside the slot is defined as a fixed portion, and a distance from the end of each plug portion to the bottom wall is smaller than a distance from the end of the tongue to the bottom wall; The conductive terminals are respectively arranged in two rows along the first direction, and the plug portions of the two rows of conductive terminals are respectively disposed on opposite sides of the tongue plate, and the plug portion of each conductive terminal and the tongue plate There is a gap between them. The board end connector of claim 1, wherein the insulating seat defines a second direction perpendicular to the first direction, and in the second direction, one conductive terminal of any one of the conductive terminals corresponds to A conductive terminal to another column of conductive terminals. The board end connector of claim 2, wherein any two opposite conductive terminals in the second direction are spaced from the tongue and greater than a distance between adjacent two conductive terminals of any one of the columns. The board end connector of claim 1, wherein the ring side wall of the trough body defines an insertion interface at an inner edge portion away from the bottom wall, and the tongue plate protrudes from the insertion interface. The board-end connector of claim 4, wherein the plug portions of the conductive terminals are each located in a space surrounded by the side wall of the ring and do not protrude from the plug interface. The board end connector of claim 4, wherein the plug connector is substantially T-shaped. The board-end connector of claim 1, wherein the tongue plate is recessed to form a guide groove adjacent to one of the two sides of the two rows of conductive terminals. The board end connector of claim 1, wherein the tongue plate has a length value corresponding to the first direction that is not less than a distance value corresponding to the first direction of each column of the conductive terminals. The board-end connector of claim 1, wherein the plug-in portions of the conductive terminals are substantially flat strips and each have at least one flat surface, and the plug portions of the conductive terminals The flat faces are perpendicular to the first direction. The board end connector according to any one of claims 1 to 9, wherein the insulating seat is of an integrally formed structure, and the tongue plate is hollow, and the two rows of conductive terminals are opposite to the tongue plate. It is roughly mirror symmetrical.