TWI751774B - Cable connector and connector assembly - Google Patents

Abstract

The invention discloses a cable connector, comprising a wire end insulation body, a wire end conductive terminal group arranged inside the wire end insulation body, a cable electrically connected with the wire end conductive terminal group, and a buckle installed on the wire end insulation body . The wire end insulating body includes a main body part, an insertion part extending forward from the main body part, and a buckle part extending upward and forward from the upper surface of the main body part. The top of the buckle portion is provided with a buckle groove, the buckle is installed in the buckle groove, the insertion portion is provided with a first insertion slot, the wire end conductive terminals are assembled in the first insertion slot, and the buckle portion extends out of the main body There is a first limiting slot between the portion and the inserting portion. The present invention further discloses a connector assembly including the above-mentioned cable connector. After the cable connector of the present invention is inserted into the board-end connector, the height of the entire connector assembly can be made less than 8 mm, and can be applied under the radiator of the server to save the space of the main board.

Description

Cable Connectors and Connector Assemblies

The present invention relates to the technical field of connectors, in particular to a cable connector and a connector assembly.

As the transmission speed in servers and switches is getting faster and faster, and the transmission speed reaches 56Gbps and 112Gbps, the limitation of traditionally using printed circuit boards to transmit signals is getting bigger and bigger, because the signals are greatly attenuated during the transmission of printed circuit boards, which will affect the Signal integrity, so it is necessary to use connectors to reduce attenuation.

The height of the products currently used is relatively high, which is not suitable for use around the server chip. With the utilization of motherboard space by customers and from the perspective of cost saving, customers also want to use the motherboard space under the radiator, and hope that the product can be placed under the radiator to make full use of the server motherboard space.

In view of the above problems, the purpose of the present invention is to provide a cable connector and a connector assembly which can be applied under the server heat sink, so as to save the space of the motherboard.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows: A cable connector includes a wire end insulating body, a wire end conductive terminal group arranged inside the wire end insulating body, a cable electrically connected to the wire end conductive terminal group, and a buckle installed on the wire end insulating body. The wire end insulating body includes a main body part, an insertion part extending forward from the main body part, and a buckle part extending upward and forward from the upper surface of the main body part. The top of the buckle portion is provided with a buckle groove, and the buckle is installed in the buckle groove. The insertion part is provided with a first insertion slot, and the wire end conductive terminals are assembled in the first insertion slot. A first limiting slot is provided between the portion of the buckle portion extending out of the main body portion and the insertion portion.

Preferably, the snap portion extends forward beyond the insertion portion.

Preferably, there are two guiding and positioning posts extending forward from the front end of the main body part below the insertion part, and a second limiting slot is arranged between the insertion part and the guiding and positioning posts.

Preferably, the guide positioning post extends forward beyond the insertion portion.

Preferably, the front end face of the insertion portion extends forward between the two guide and positioning columns to form a limit block.

Preferably, a cavity is opened inside the main body, and a plastic fixing member for fixing the end of the wire-end conductive terminal group is fixed in the cavity, and the wire-end conductive terminal group extends forward into the first insertion slot.

Preferably, the wire end conductive terminal group includes a first conductive terminal group and a second conductive terminal group, the first conductive terminal group and the second conductive terminal group are respectively arranged on the upper surface and the lower surface of the first insertion slot, The cable includes a first cable and a second cable arranged in parallel with each other, the first cable is electrically connected to the first conductive terminal group, and the second cable is electrically connected to the second conductive terminal group.

Preferably, both the first conductive terminal group and the second conductive terminal group include a plurality of conductive terminals arranged along the width direction of the first insertion slot, and the conductive terminals include a terminal main body portion, and a terminal body portion is bent from the front end of the terminal main body portion. The contact part and the welding part extending backward from the rear end of the terminal main body part, the welding parts of the first conductive terminal group and the second conductive terminal group are arranged in parallel with each other, the welding part of the first conductive terminal group and the welding part of the second conductive terminal group The spacing between the parts is 1-2.5 times the minimum spacing between the contact parts of the first conductive terminal group and the contact parts of the second conductive terminal group.

In one embodiment, both the first cable and the second cable pass backwards from the rear end of the main body.

In another embodiment, the first conductive terminal group is bent downward at the end connected to the plastic fixing member to form the first connection portion, and the second conductive terminal group is bent downward at the end connected to the plastic fixing member to form the second connection The first connecting part and the second connecting part are parallel to each other and staggered front and rear, and both the first cable and the second cable pass downward from the bottom of the main body part.

Preferably, the distance between the first connecting portion and the second connecting portion is 0.3-1.5 mm.

Preferably, it further includes a pull strap, and the buckle includes a fixing part, an elastic part formed by bending upward from one end of the fixing part, and a pressing part formed by sloping upward from the end of the elastic part, the fixing part is fixed in the buckle groove, and the pull One end of the belt is connected to the pressing portion.

Preferably, the rear end of the main body is provided with a rear cover, the upper part of the rear cover is provided with a drawstring hole, and one end of the drawstring passes through the drawstring hole and is connected to the pressing portion of the buckle.

Preferably, the upper part of the rear cover extends upward to form a protruding part, and the drawstring hole is provided on the protruding part and penetrates the protruding part in the front-rear direction.

Preferably, the rear cover includes an upper shell and a lower shell, the left and right sides of the bottom surface of the upper shell extend downward to form two first clamping blocks, respectively, and the left and right sides of the top surface of the lower shell are respectively provided with first clamping blocks. A first clamping hole into which the connection block is inserted, a first clamping hole is opened on the wall surface of the first clamping hole, and a corresponding position on the outer surface of the first clamping block is provided for clamping with the first clamping hole. The first card is convex.

Preferably, the left and right sides of the upper part of the rear end surface of the main body part extend backward to form two second engaging blocks respectively, and the left and right sides of the front end surface of the upper shell are respectively provided with second engaging blocks for engaging the second engaging blocks. The second clamping block is provided with a second clamping hole, and a corresponding position of the inner wall surface of the second clamping hole is provided with a second clamping protrusion for clamping with the second clamping hole.

The present invention further discloses a connector assembly, comprising a cable connector and a board-end connector, wherein the cable connector is the above-mentioned cable connector.

Preferably, the board-end connector includes a board-end insulating body, a board-end conductive terminal group fixed inside the board-end insulating body, and a shell sleeved outside the board-end insulating body. The inside of the board end insulation body is provided with a second insertion slot, the top of the shell is bent to form a card slot, the insertion part of the cable connector and the front end of the clip part are inserted into the second insertion slot and the card slot respectively, and the board end The top plate of the insulating body is inserted into the first limiting slot.

Preferably, an insulating plug-in board for inserting into the first plug-in groove is provided inside the second plug-in groove, and the board-end conductive terminal group includes a conductive plastic strip, a third conductive terminal group and a fourth conductive terminal group. The conductive plastic strip is embedded in the insulating plug board, the third conductive terminal group and the fourth conductive terminal group are respectively arranged on the upper surface and the lower surface of the insulating plug board, the third conductive terminal group and the fourth conductive terminal group The terminal group is composed of ground wire terminals and signal terminal pairs arranged alternately in sequence. The signal terminal pair is composed of two mutually symmetrical signal terminals, and all the ground wire terminals are electrically connected with the conductive plastic strips.

Preferably, the height of the insulating plug-in board is less than or equal to the height of the first plug-in slot, and there is a gap between the insulating plug-in board and the side wall of the board end insulating body for the side wall of the insertion portion to be inserted.

Preferably, in order to enhance the strength of the entire casing and prevent the sides of the casing from being easily deformed, two fixing arms extending toward the side away from the cable connector are provided on both sides of the casing and on both sides of the card slot.

Preferably, two sides of the housing extend toward one side of the cable connector respectively and form two L-shaped limit plates for limiting the left and right positions of the cable connector.

Wherein, a first U-shaped groove is formed at the front end of the clamping groove on the top of the casing, and the rear end of the buckle portion of the cable connector is accommodated in the first U-shaped groove. The front end of the bottom of the casing is formed with a second U-shaped groove, the main body of the cable connector is accommodated in the second U-shaped groove, and the cable connector is completely inserted into the casing. This structure can effectively reduce the total height of the product after matching and can improve the contact reliability of the product.

Preferably, there are two guiding and positioning posts extending forward from the front end of the main body under the inserting part, and two guiding holes for inserting the guiding and positioning posts are formed by bending the bottom of the casing. Insertion There is a second limit slot between the bottom of the insulator and the top of the guide positioning column, and the bottom plate of the board-end insulating body is inserted into the second limit slot.

Preferably, the side and bottom of the casing are respectively provided with lock holes and elastic pieces, and the sides and bottom of the insulating body of the board end are respectively provided with blocks and elastic pieces for snap-fit with the lock holes and the elastic pieces.

The present invention has the following beneficial effects: 1. The present invention provides a product with a transmission speed of 56Gbps and 112Gbps, which meets the customer's requirements for product signal integrity, and the cable connector can be completely inserted into the board end connector, so that the connection The overall height of the connector assembly is less than 8mm, which can be used under the radiator of the server to save the space of the motherboard; 2. Setting the guide positioning column and guide hole can guide the cable connector, and can prevent the product from twisting and skewing under force, improving the product quality. 3. The distance between the first connection part and the second connection part of the wire-end conductive terminal group is set to 0.3~1.5mm, which is convenient for welding two rows of cables and improves the signal integrity of the product; 4. The top of the shell A first U-shaped groove is formed at the front end of the card slot, the rear end of the buckle portion is accommodated in the first U-shaped groove, the front end of the bottom of the casing is formed with a second U-shaped groove, and the main body of the cable connector is accommodated in the first U-shaped groove. In the two U-shaped grooves, this structure can effectively reduce the total height of the product after matching and can improve the contact reliability of the product.

1: Line end insulation body

101: The first limit slot

102: The second limit slot

11: Main body

110: cavity

111: Back cover

112: Pull with holes

113: Upper shell

1131: Protrusion

1132: The first snap block

1133: The first card convex

1134: Second snap hole

1135: The second card convex

1136: glue injection hole

114: Lower shell

1141: The first snap hole

1142: The first card hole

1143: bump

1144: The third card convex

115: Slot

116: The third card hole

117: Second snap block

118: The second card hole

12: Insertion part

120: The first socket

121: Limit block

13: Buckle part

130: Snap slot

14: Guide positioning column

20: Conductive terminal

201: Ground terminal

202: Signal terminal

203: Welding Department

204: Terminal main body

205: Contact Department

21: The first conductive terminal group

22: The second conductive terminal group

221: The first connection part

222: Second connector

23: Plastic fasteners

231: The first plastic fastener

232: Second plastic fastener

233: Card Block

234: The first positioning column

235: Second positioning column

3: Cable

31: The first cable

32: Second cable

4: Inner mold

5: Snap

51: Fixed part

52: Elastic part

521: Card convex

53: Pressing part

6: Pull belt

7: Board end insulation body

701: Card Block

702: Shrapnel slot

71: The second socket

72: Insulation plug board

8: Board end conductive terminal group

801: Ground terminal

802: Signal terminal

81: Conductive plastic strip

82: The third conductive terminal group

83: Fourth conductive terminal group

9: Metal shell

90: The first U-shaped groove

900: Second U-slot

901: Keyhole

902: Shrapnel

91: Card slot

92: Pilot hole

93: Card hole

94: Fixed arm

95: L-shaped limit plate

H,H',h: spacing

A,B: width

a,b: gap

FIG. 1 is a schematic three-dimensional structural diagram of the cable connector in the first embodiment.

FIG. 2 is an exploded view of the parts of FIG. 1 .

FIG. 3 is a schematic three-dimensional structure diagram of a wire end insulating body.

FIG. 4 is a schematic diagram of the installation of the conductive terminal group at the neutral line end according to the first embodiment.

FIG. 5 is a schematic three-dimensional structural diagram of the cable connector in the second embodiment.

FIG. 6 is a schematic three-dimensional structural diagram of the cable connector in the third embodiment.

FIG. 7 is a schematic diagram of the installation of the conductive terminal group at the line end in the third embodiment.

FIG. 8 is a schematic three-dimensional structure diagram of the cable connector in the fourth embodiment.

FIG. 9 is a schematic three-dimensional structural diagram of the connector assembly in the fifth embodiment.

FIG. 10 is a schematic three-dimensional structure diagram of the board end connector in the fifth embodiment.

FIG. 11 is an exploded view of the parts of FIG. 9 .

FIG. 12 is a schematic three-dimensional structural diagram of the metal casing in the fifth embodiment.

FIG. 13 is a schematic diagram of the arrangement of the conductive terminals of the wire-end conductive terminal group or the board-end conductive terminal group.

FIG. 14 is a schematic three-dimensional structure diagram of the connector assembly in the sixth embodiment.

FIG. 15 is a schematic three-dimensional structural diagram of the connector assembly in the seventh embodiment.

16 is a schematic three-dimensional structural diagram of the connector assembly in the eighth embodiment.

17 is a schematic three-dimensional structural diagram of the connector assembly in the ninth embodiment.

FIG. 18 is a schematic three-dimensional structural diagram of the metal casing in the ninth embodiment.

FIG. 19 is a schematic three-dimensional structure diagram of the connector assembly in the tenth embodiment.

FIG. 20 is a schematic three-dimensional structure diagram of the connector assembly in the eleventh embodiment.

FIG. 21 is a schematic three-dimensional structure diagram of the connector assembly in the twelfth embodiment.

FIG. 22 is a schematic three-dimensional structural diagram of the connector assembly in the thirteenth embodiment.

FIG. 23 is a schematic three-dimensional structure diagram of the upper case in the thirteenth embodiment.

FIG. 24 is a schematic three-dimensional structure diagram of the lower case in the thirteenth embodiment.

FIG. 25 is a schematic three-dimensional structure diagram of the lower case in the thirteenth embodiment.

FIG. 26 is a schematic three-dimensional structure diagram of the main body in the thirteenth embodiment.

FIG. 27 is a schematic structural diagram of the conductive terminal in the fourteenth embodiment.

FIG. 28 is a graph of impedance measurement data of the connector assembly in the fourteenth embodiment.

FIG. 29 is a graph of the insertion loss measurement data of the connector assembly in the fourteenth embodiment.

FIG. 30 is a graph of performance measurement data of near-end crosstalk between high-speed pairs of the connector assembly in the fourteenth embodiment.

FIG. 31 is a graph of the performance measurement data of the far-end crosstalk between high-speed pairs of the connector assembly in the fourteenth embodiment.

32 is a cross-sectional view of the cable connector in the fifteenth embodiment.

33 is a schematic three-dimensional structural diagram of the insulating fixing member in the fifteenth embodiment.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in FIG. 1 to FIG. 4 , a cable connector includes a wire end insulating body 1 , a wire end conductive terminal group, a cable 3 , an inner mold 4 and a buckle 5 . The wire end insulating body 1 includes a body portion 11 , an insertion portion 12 extending forward from the front end of the body portion 11 , and a snap portion 13 extending upward and forward from the upper surface of the body portion 11 . There is a first limiting slot 101 between the portion of the buckle portion 13 extending from the main body portion 11 and the insertion portion 12 , and a buckle slot 130 for installing the buckle 5 is opened on the top of the buckle portion 13 . A first insertion slot 120 is defined at the front end of the insertion portion 12 , and the wire-end conductive terminals are assembled in the first insertion slot 120 .

Preferably, the buckle portion 13 protrudes beyond the insertion portion 12 forward.

Preferably, the front surface of the main body portion 11 has two guiding and positioning posts 14 extending forward under the insertion portion 12 , and a second limiting slot 102 is provided between the bottom of the insertion portion 12 and the top of the guiding and positioning posts 14 . , the guide positioning post 14 extends forward beyond the insertion portion 12 .

The buckle 5 includes a fixed part 51 , an elastic part 52 formed by bending upward from one end of the fixed part 51 , and a pressing part 53 formed by inclined upwardly extending from the end of the elastic part 52 . The fixed part 51 is fixed in the buckle groove 130 . A cavity 110 is opened inside the main body portion 11 , and a rear cover 111 is provided at the rear end of the main body portion 11 , and the rear cover 111 is fixed on the main body portion 11 through a buckle.

The wire end conductive terminal group includes a first conductive terminal group 21, a second conductive terminal group 22 and a plastic fixing member 23. The plastic fixing member 23 is arranged in the cavity 110. The plastic fixing member 23 can be divided into upper and lower fixing members, or It is an integral fixture. The same ends of the first conductive terminal group 21 and the second conductive terminal group 22 are respectively fixed on the plastic fixing member 23 , and the other ends extend into the first insertion slot 120 and are respectively arranged on the upper surface of the first insertion slot 120 . and the lower surface.

The first conductive terminal group 21 is bent downward at one end connected with the plastic fixing member 23 to form a first connecting portion 221 , and the second conductive terminal group 22 is bent downward at the end connected with the plastic fixing member 23 to form a second connecting portion 222. The first connecting portion 221 and the second connecting portion 222 are parallel to each other and staggered front and rear. Preferably, the distance H between the first connecting portion 221 and the second connecting portion 222 is 0.3-1.5 mm. The cable 3 includes a first cable 31 and a second cable 32 , the first cable 31 is welded to the first connection part 221 , and the second cable 32 is welded to the second connection part 222 . Both the first cable 31 and the second cable 32 protrude downward from the bottom of the main body portion 11 . The inner mold 4 is set in the cavity 110 and completely covers the solder joints of the first cable 31 and the first connection portion 221 and the solder joints of the second cable 32 and the second connection portion 222 .

As shown in FIG. 13 , the first conductive terminal group 21 and the second terminal 22 rows are formed by alternately arranged ground wire terminals 201 and signal terminal pairs, and the signal terminal pair is composed of two mutually symmetrical signal terminals 202 .

Preferably, the width A of the ground terminal 201 is greater than or equal to the width B of the signal terminal 202 , and the gap a between the ground terminal 201 and the signal terminal 202 is greater than or equal to the gap b between the two signal terminals 202 .

Embodiment 2

As shown in FIG. 5 , the only difference between this embodiment and the first embodiment is that the cable connector further includes a drawstring 6 , a drawstring hole 112 is defined on the upper part of the back cover 111 , and one end of the drawstring 6 passes through the drawstring hole 112 and connected to the pressing part 53 of the buckle 5 . The rest of the structure of this embodiment is the same as that of the first embodiment.

Embodiment 3

As shown in FIG. 6 and FIG. 7 , the difference between this embodiment and the first embodiment is only that the first conductive terminal group 21 and the second conductive terminal group 22 are not bent to form a connecting portion at the end connected to the plastic fixing member 23 . The first cable 31 and the side of the first conductive terminal group 21 close to the plastic fixing member 23 are welded together, and the second cable 32 and the side of the second conductive terminal group 22 close to the plastic fixing member 23 are welded together. Both the cable 31 and the second cable 32 pass through the rear cover 111 rearwardly. The rest of the structure of this embodiment is the same as that of the first embodiment.

Embodiment 4

As shown in FIG. 8 , the only difference between this embodiment and the third embodiment is that the cable connector further includes a drawstring 6 , a drawstring hole 112 is defined on the upper part of the back cover 111 , and one end of the drawstring 6 passes through the drawstring hole 112 and connected to the pressing part 53 of the buckle 5 . The rest of the structure of this embodiment is the same as that of the third embodiment.

Embodiment 5

As shown in FIG. 9 to FIG. 12 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the first embodiment.

The board-end connector includes a board-end insulating body 7, a board-end conductive terminal group 8 fixed inside the board-end insulating body 7, and a metal shell 9 sleeved on the outside of the board-end insulating body 7. The material of the board-end insulating body 7 is plastic. The side and bottom of the metal casing 9 are respectively provided with a locking hole 901 and an elastic sheet 902, and the side and bottom of the board-end insulating body 7 are respectively provided with a locking block 701 and an elastic sheet slot 702 for engaging with the locking hole 901 and the elastic sheet 902. .

The inside of the board end insulating body 7 is provided with a second insertion slot 71 that matches the shape of the insertion portion 12 , the insertion portion 12 is inserted into the second insertion slot 71 , and the top arm of the board end insulating body 7 is inserted into the buckle portion 13 and in the first limiting slot 101 between the insertion parts 12 . The top of the metal shell 9 is bent to form a card slot 91 , and the bottom of the metal shell 9 is bent to form two guide holes 92 for the guiding and positioning posts 14 to be inserted into. The buckle 5 is provided with two protrusions 521 on the top of the elastic part 52, and the metal shell 9 is provided with two protrusions 521 on the top of the card slot 91 for connecting with the two. The latching hole 93 to which the latching protrusion 521 is latched. Two fixing arms 94 extending toward the side away from the cable connector are respectively provided on both sides of the metal casing 9 and on both sides of the card slot 91 .

The board-end conductive terminal group 8 includes a conductive plastic strip 81 , a third conductive terminal group 82 and a fourth conductive terminal group 83 . The board-end insulating body 7 is provided with an insulating plug-in board 72 inside the second plug-in slot 71 , the conductive plastic strip 81 is embedded in the interior of the insulating plug-in board 72 , the third conductive terminal group 82 and the fourth conductive terminal The groups 83 are arranged at the upper surface and the lower surface of the insulating plug board 72, respectively. The height of the insulating plug-in board 72 is less than or equal to the height of the first plug-in slot 120 , and there is a gap between the insulating plug-in board 72 and the side wall of the board end insulating body 7 for the side wall of the insertion portion 12 to be inserted. The board-end conductive terminal group 8 is inserted into the first insertion slot 120 so that the first conductive terminal group 21 and the second conductive terminal group 22 are respectively contacted and connected to the third conductive terminal group 82 and the fourth conductive terminal group 83 .

As shown in FIG. 13 , the third conductive terminal group 82 and the fourth conductive terminal group 83 are formed by the ground terminal 801 and the signal terminal pair arranged alternately in sequence, and the signal terminal pair is composed of two mutually symmetrical signal terminals 802 . All the ground terminals 801 are electrically connected to the conductive plastic strips 81 .

Preferably, the width A of the ground terminal 801 is greater than or equal to the width B of the signal terminal 802 , and the gap a between the ground terminal 801 and the signal terminal 802 is greater than or equal to the gap b between the two signal terminals 802 .

The distance between the bottom of the front end of the snap portion 13 and the top of the insertion portion 12 is greater than or equal to the thickness of the top plate of the board-end insulating body 7, so that when the inserting portion 12 is inserted into the second insertion slot 71, the top plate of the board-end insulating body 7 can be It is inserted into the gap formed between the snap portion 13 and the insertion portion 12 . The height of the second limit slot 102 between the bottom of the insertion portion 12 and the top of the guide positioning post 14 is greater than or equal to the thickness of the bottom plate of the board end insulating body 7, so that when the insertion portion 12 is inserted into the second insertion slot 71, the board The bottom plate of the end insulating body 7 can be inserted into the second limiting slot 102 formed between the inserting portion 12 and the guiding and positioning post 14 . The distance between the insulating plug board 72 and the side wall of the board end insulating body 7 is greater than or equal to the thickness of the side wall of the insertion portion 12, so that the insertion portion The two side walls of the 12 can be inserted into the two side gaps formed by the insulating plug-in board 72 and the board end insulating body 7 .

The working principle of the present invention is as follows: Assembling the connector assembly: after assembling the wire end connector, align the position, and insert the insertion part 12, the snap part 13 and the two guide positioning posts 14 of the wire end connector into the board respectively In the second insertion slot 71 , the card slot 91 and the two guide holes 92 of the end connector, the two guide positioning posts 14 can guide the insertion of the entire wire end connector and prevent the product from twisting and skewing under force. At the same time, the insulating plug-in board 72 on the board-end connector is inserted into the first plug-in slot 120 of the line-end connector insertion portion 12, the third conductive terminal group is in contact with the first conductive terminal group, and the fourth conductive terminal group is in contact with the first conductive terminal group. The terminal group and the second conductive terminal group are in contact and conduct. The two snap projections 521 on the top of the wire end connector are snapped into the two snap holes 93 of the board end connector to achieve fixation.

Unlock the connector assembly: press the pressing part 53 of the buckle 5 to move it downward, the elastic part 52 moves downward following the pressing part 53 , and the two locking protrusions 521 on the top of the elastic part 52 pass from the two locking holes 93 of the metal shell 9 To disengage in the middle, pull the cable connector to disengage the cable connector from the board end connector, and the unlocking is completed.

Embodiment 6

As shown in FIG. 14 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the second embodiment. Moreover, the structure of the board end connector of this embodiment is the same as that of the fifth embodiment.

When the connector assembly of this embodiment is unlocked, the pull strap 6 is pulled, the pull strap 6 pulls the pressing portion 53 of the buckle 5 to move downward, the elastic portion 52 follows the pressing portion 53 to move downward, and the two snap protrusions on the top of the elastic portion 52 521 is disengaged from the two card holes 93 of the metal shell 9, and the pull strap 6 is continuously pulled to disengage the wire end connector from the board end connector, and the unlocking is completed.

Embodiment 7

As shown in FIG. 15 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the third embodiment. Moreover, the structure of the board end connector of this embodiment is the same as that of the fifth embodiment.

When the connector assembly of this embodiment is unlocked, the pressing portion 53 of the buckle 5 is pressed to move downward, the elastic portion 52 moves downward following the pressing portion 53 , and the two locking protrusions 521 on the top of the elastic portion 52 extend from the metal shell 9 . Pull the cable connector to disengage the cable connector from the board end connector, and the unlocking is completed.

Embodiment 8

As shown in FIG. 16 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the fourth embodiment. Moreover, the structure of the board end connector of this embodiment is the same as that of the fifth embodiment.

When the connector assembly of this embodiment is unlocked, the pull strap 6 is pulled, the pull strap 6 pulls the pressing portion 53 of the buckle 5 to move downward, the elastic portion 52 follows the pressing portion 53 to move downward, and the two snap protrusions on the top of the elastic portion 52 521 is disengaged from the two card holes 93 of the metal shell 9, and the pull strap 6 is continuously pulled to disengage the wire end connector from the board end connector, and the unlocking is completed.

Embodiment 9

As shown in FIG. 17 and FIG. 18 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the first embodiment. The only difference between this embodiment and the fifth embodiment is that the two sides of the metal shell 9 respectively extend toward one side of the cable connector and form two L-shaped limit plates for limiting the left and right positions of the cable connector 95. A first U-shaped groove 90 is formed on the top of the metal casing 9 at the front end of the card slot 91, the rear end of the buckle portion 13 of the cable connector is accommodated in the first U-shaped groove 90, and the front end of the bottom of the metal casing 9 is formed with a first U-shaped groove 90. Two U-shaped grooves 900 , the main body 11 of the cable connector is accommodated in the second U-shaped groove 900 . The rest of the structure of this embodiment is the same as that of the fifth embodiment.

In this embodiment, the heights of the front and rear of the metal casing 9 are lower than the sides of the metal casing 9. This structure can effectively reduce the total height of the product after matching, and can also improve the contact reliability of the product, preventing the cable connector from shaking left and right .

Embodiment ten

As shown in FIG. 19 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the second embodiment. Moreover, the structure of the board end connector of this embodiment is the same as that of the ninth embodiment.

Embodiment 11

As shown in FIG. 20 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the third embodiment. Moreover, the structure of the board end connector of this embodiment is the same as that of the ninth embodiment.

Embodiment 12

As shown in FIG. 21 , a connector assembly includes a cable connector and a board end connector, and the cable connector is the cable connector in the fourth embodiment. Moreover, the structure of the board end connector of this embodiment is the same as that of the ninth embodiment.

Embodiment thirteen

As shown in FIG. 22 to FIG. 26 , the difference between this embodiment and the first embodiment is that: The front end surface of the insertion portion 12 extends forwardly between the two guiding and positioning columns 14 to form a limiting block 121 .

The upper portion of the rear cover 111 extends upward to form a protruding portion 1131 , and the drawstring hole 112 is provided on the protruding portion 1131 and penetrates the protruding portion 1131 in the front-rear direction.

The rear cover 111 includes an upper shell 113 and a lower shell 114. The left and right sides of the bottom surface of the upper shell 113 extend downward to form two first engaging blocks 1132, respectively. A first clamping hole 1141 into which the clamping block 1132 is clamped, and a first clamping hole 1141 is provided on the wall surface of the first clamping hole 1141 In the hole 1142 , a corresponding position on the outer surface of the first engaging block 1132 is provided with a first engaging protrusion 1133 for engaging with the first engaging hole 1142 . A glue injection hole 1136 for injecting the inner mold 4 is opened on the side wall of the upper shell 113 .

The left and right sides of the upper part of the rear end surface of the main body portion 11 are respectively extended backward to form two second engaging blocks 117 , and the left and right sides of the front end surface of the upper shell 113 are respectively provided with second engaging blocks 117 for engaging the second engaging blocks 117 . In the connecting hole 1134 , the second locking block 117 is provided with a second locking hole 118 , and a corresponding position on the inner wall of the second locking hole 1134 is provided with a second locking protrusion 1135 for locking with the second locking hole 118 .

The front end of the lower shell 114 extends forward to form a protrusion 1143 , and the lower part of the rear end of the main body portion 11 is provided with a slot 115 that matches the shape of the protrusion 1143 . The bottom of the slot 115 defines one to a plurality of third locking holes 116 , and a corresponding position of the bottom of the protruding block 1143 defines one to a plurality of third locking protrusions 1144 for engaging with the third locking holes 116 .

Embodiment 14

As shown in FIG. 27 , the only difference between this embodiment and the first embodiment is that the first conductive terminal group 21 and the second conductive terminal group 22 both include a plurality of conductive terminals arranged along the width direction of the first insertion slot 120 20. The conductive terminal 20 includes a terminal main body portion 204, a contact portion 205 formed by bending the front end of the terminal main body portion 204 and a welding portion 203 formed by extending backward from the rear end of the terminal main body portion 204, a first conductive terminal group 21 and a second conductive terminal group 20. The welding parts 203 of the terminal group 22 are arranged in parallel to each other, and the distance H' between the welding parts 203 of the first conductive terminal group 21 and the welding parts 203 of the second conductive terminal group 22 is the contact part 205 of the first conductive terminal group 21 and 1 to 2.5 times the minimum distance h between the contact portions 205 of the second conductive terminal group 22 .

The present embodiment further relates to a connector assembly, including the above-mentioned cable connector and board end connector.

In this embodiment, the tongue thickness of the board-end connector is 2 mm, and the minimum distance h between the contact portions 205 of the first conductive terminal group 21 and the contact portions 205 of the second conductive terminal group 22 is 1.4-2 mm. The above numerical values are only to illustrate the relationship between the thickness of the tongue piece of the board end connector and h, and the thickness of the tongue piece can also be any other numerical value.

Figures 28 to 31 show performance test data charts of the connector assembly. After testing, it is found that the connector assembly of this embodiment has good performance in impedance, insertion loss, near-end crosstalk and far-end crosstalk.

Embodiment fifteen

32 and 33 show the fifteenth embodiment. As shown in FIGS. 32 and 33 , the plastic fixing member 23 includes a first plastic fixing member 231 for fixing the first conductive terminal group 21 and a second plastic fixing member 232 for fixing the second conductive terminal group 22 . Two sides of the plastic fixing member 231 and the second plastic fixing member 232 are respectively provided with locking blocks 233 , and the locking blocks 233 are engaged with the second locking holes 118 .

The bottom of the first plastic fixing member 231 is provided with a first positioning post 234 and a first positioning hole (not shown), and a corresponding position on the top of the second plastic fixing member 232 is provided with a second positioning post 235 and a second positioning hole. The first positioning column 234 and the second positioning column 235 are inserted into the second positioning hole and the first positioning hole, respectively.

While the invention has been specifically shown and described in connection with preferred embodiments, it will be understood by those of ordinary skill in the art that, without departing from the spirit and scope of the invention as defined in the appended claims, in the form of Various changes are made to the present invention in detail, which are all within the protection scope of the present invention.

1: Line end insulation body

3: Cable

5: Snap

11: Main body

12: Insertion part

13: Buckle part

Claims (25)

A cable connector includes an insulating body at one end, a conductive terminal group at one end arranged inside the insulating body at the end of the wire, a cable electrically connected with the conductive terminal at the end of the wire, and a cable mounted on the insulating body at the end of the wire. A buckle, wherein the wire end insulating body includes a main body, an insertion portion extending forward from the main body, and a buckle portion extending upward and forward from the upper surface of the main body. The buckle portion There is a snap slot on the top of the device, the snap is installed in the snap slot, a first insertion slot is defined in the insertion portion, the wire end conductive terminal is assembled in the first insertion slot, and the snap portion There is a first limiting slot between the part extending out of the main body and the insertion part. The cable connector of claim 1, wherein the snap portion forwards beyond the insertion portion. The cable connector according to claim 2, wherein there are two guide positioning posts extending forward from the front end of the main body part below the insertion part, and a second limit is formed between the insertion part and the guiding and positioning posts bit slot. The cable connector of claim 3, wherein the guide positioning post extends forwardly beyond the insertion portion. The cable connector as claimed in claim 3, wherein a front end surface of the insertion portion extends forwardly between the two guiding and positioning posts to form a limiting block. The cable connector according to claim 1, wherein a cavity is defined inside the main body, and a plastic fixing member for fixing the end of the wire-end conductive terminal group is fixed in the cavity, and the wire-end conductive terminal The group extends forward into the first insertion slot. The cable connector according to claim 6, wherein the wire end conductive terminal group comprises a first conductive terminal group and a second conductive terminal group, and the first conductive terminal group and the second conductive terminal group are respectively arranged On the upper surface and the lower surface of the first insertion slot, the cable includes a first cable and a second cable arranged parallel to each other, and the first cable is electrically connected to the first conductive terminal group, The second cable is electrically connected to the second conductive terminal group. The cable connector of claim 7, wherein the first conductive terminal group and the second conductive terminal group each include a plurality of conductive terminals arranged along the width direction of the first insertion slot, the plurality of conductive terminals The terminal includes a terminal body part, a contact part formed by bending from the front end of the terminal body part, and a welding part extending backward from the rear end of the terminal body part. The first conductive terminal group and the second conductive terminal group have The welding parts are arranged parallel to each other, and the distance between the welding part of the first conductive terminal group and the welding part of the second conductive terminal group is the contact part of the first conductive terminal group and the second conductive terminal group. 1 to 2.5 times the minimum spacing between the contact parts. The cable connector of claim 7, wherein the first cable and the second cable are protruded backward from the rear end of the main body portion. The cable connector of claim 7, wherein the first conductive terminal group is bent downward at one end connected to the plastic fixing member to form a first connecting portion, and the second conductive terminal group is fixed to the plastic One end of the connecting part is bent downwards to form a second connecting part, the first connecting part and the second connecting part are parallel to each other and staggered front and rear, the first cable and the second cable are both connected by the main body part. Bottom out. The cable connector of claim 10, wherein the distance between the first connecting portion and the second connecting portion is 0.3-1.5 mm. The cable connector according to claim 1, further comprising a pull strap, and the buckle includes a fixing portion, an elastic portion formed by bending upward from one end of the fixing portion, and extending upwardly from the end of the elastic portion. A pressing part of the pull strap is connected with the pressing part. The cable connector of claim 12, wherein the rear end of the main body is provided with a rear cover, the upper portion of the rear cover is provided with a drawstring hole, and one end of the drawstring passes through the drawstring hole and is connected with the card The pressing part of the buckle is connected. The cable connector of claim 13, wherein an upper portion of the rear cover extends upward to form a protruding portion, and the drawstring hole is provided on the protruding portion and penetrates the protruding portion in the front-rear direction. The cable connector according to claim 13, wherein the back cover comprises an upper shell and a lower shell, the left and right sides of the bottom surface of the upper shell respectively extend downward to form two first engaging blocks, and the top of the lower shell The left and right sides of the surface are respectively provided with a first clamping hole for the first clamping block to be inserted into, a first clamping hole is opened on the wall of the first clamping hole, and the outer surface of the first clamping block is A first latching protrusion for latching with the first latching hole is arranged at the corresponding position. The cable connector as claimed in claim 15, wherein the left and right sides of the upper part of the rear end surface of the main body part extend backward to form two second engaging blocks, respectively; A second clamping hole into which the second clamping block is clamped, a second clamping hole is defined on the second clamping block, and a corresponding position on the inner wall of the second clamping hole is provided for the second clamping hole A second latching protrusion that is latched with the holes. A connector assembly includes a cable connector and a board end connector, wherein the cable connector is the cable connector described in any one of claim 1 to claim 16. The connector assembly of claim 17, wherein the board-end connector comprises a board-end insulating body, a board-end conductive terminal group fixed inside the board-end insulating body, and a board-end conductive terminal set sleeved on the outside of the board-end insulating body a shell, the inside of the board end insulating body is provided with a second insertion slot, the top of the shell is bent to form a slot, the insertion part of the cable connector, the front end of the buckle part are respectively inserted into the second slot In the insertion slot and the card slot, the top plate of the board end insulating body is inserted into the first limit slot. The connector assembly as claimed in claim 18, wherein an insulating plug-in board for inserting into the first plug-in groove is provided inside the second plug-in groove, and the board-end conductive terminal group comprises a conductive plastic strip, A third conductive terminal group and a fourth conductive terminal group, the conductive plastic strip is embedded in the insulation plug board, the third conductive terminal group and the fourth conductive terminal group are respectively arranged in the insulation plug On the upper surface and the lower surface of the connecting plate, the third conductive terminal group and the fourth conductive terminal group are formed by a ground terminal and a signal terminal pair arranged alternately in sequence, and the signal terminal pair is composed of two symmetrical terminals. It is composed of signal terminals, and all the ground terminals are electrically connected with the conductive plastic strip. The connector assembly of claim 19, wherein the height of the insulating plug-in board is less than or equal to the height of the first socket, and there is a space between the insulating plug-in board and the side wall of the board end insulating body for the insertion The side wall of the part is inserted into the gap. The connector assembly as claimed in claim 18, wherein two sides of the housing and two sides of the card slot are respectively provided with two fixing arms extending toward the side away from the cable connector. The connector assembly as claimed in claim 18, wherein two sides of the housing extend toward one side of the cable connector respectively and form two L-shaped limiters for limiting the left and right positions of the cable connector bit board. The connector assembly as claimed in claim 18, wherein a first U-shaped groove is formed at the front end of the latching groove on the top of the casing, and the rear end of the latching portion of the cable connector is accommodated in the first U-shaped groove The front end of the bottom of the casing is formed with a second U-shaped groove, the main body of the cable connector is accommodated in the second U-shaped groove, and the cable connector is completely inserted into the casing. The connector assembly as claimed in claim 18, wherein there are two guiding and positioning posts extending forward from the front end of the main body under the inserting portion, and two guiding and positioning posts are bent and formed at the bottom of the housing for the guiding and positioning posts A guide hole is inserted, and there is a second limit slot between the bottom of the insertion portion and the top of the guide positioning column, and the bottom plate of the board end insulating body is inserted into the second limit slot. The connector assembly according to any one of claim 18 to claim 24, wherein the side and bottom of the housing are respectively provided with a locking hole and an elastic piece, and the side and bottom of the board end insulating body are respectively provided with A clamping block and an elastic sheet groove are snap-fitted with the locking hole and the elastic sheet.

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