CN210723480U

CN210723480U - Cable connector and connector assembly

Info

Publication number: CN210723480U
Application number: CN201921911680.7U
Authority: CN
Inventors: 杨文初; 唐辉; 柯英豪; 刘振兴; 李杭
Original assignee: Amphenol Assembletech Xiamen Co Ltd
Current assignee: Amphenol Assembletech Xiamen Co Ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-09
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a cable connector, including the insulating main part of line terminal, establish at the inside line terminal conductive terminal group of the insulating main part of line terminal, with the cable that line terminal conductive terminal group electricity is connected and install the buckle in line terminal insulating main part top. The wire end insulating main body comprises a main body part, an inserting part formed by extending forwards from the main body part and a buckling part formed by extending upwards and forwards from the upper surface of the main body part. The top of the buckling part is provided with a buckling groove, the buckle is installed in the buckling groove, the inserting part is internally provided with a first inserting groove, the wire end conductive terminal group is arranged in the first inserting groove, and a first limiting slot is formed between the part, extending out of the main body part, of the buckling part and the inserting part. The utility model also discloses a connector assembly who contains above-mentioned cable connector. The utility model discloses a cable connector inserts behind the board end connector, can be so that whole connector assembly highly be less than 8mm, can use at the server radiator beneath, saves the mainboard space.

Description

Cable connector and connector assembly

Technical Field

The utility model relates to a connector technical field, in particular to cable connector and connector assembly.

Background

With the increasing transmission speed of servers and switches, which reaches 56Gbps and 112Gbps, the traditional PCB has greater limitation on signal transmission, and because the PCB attenuates greatly in time, which affects the integrity of signals, it is necessary to adopt a connector to reduce attenuation.

The height of the currently used products is higher, and the currently used products are not suitable for being used at the periphery of a server chip. With the use of motherboard space by customers and from a cost savings perspective, customers also desire to utilize motherboard space under heat sinks, and desire products that can be placed under heat sinks to make full use of server motherboard space.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a cable connector and a connector assembly that can be used under a server heat sink, which can save the space of a motherboard.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a cable connector comprises a wire end insulating main body, a wire end conductive terminal group arranged in the wire end insulating main body, a cable electrically connected with the wire end conductive terminal group and a buckle arranged above the wire end insulating main body. The wire end insulating main body comprises a main body part, an inserting part and a buckling part, wherein the inserting part extends forwards from the main body part, and the buckling part extends upwards and forwards from the upper surface of the main body part. The top of the buckling part is provided with a buckling groove, and the buckle is installed in the buckling groove. The inserting part is internally provided with a first inserting groove, and the wire end conductive terminal is assembled in the first inserting groove. The buckling part extends out of the main body part and is provided with a first limiting slot between the main body part and the inserting part.

Further, the buckling part extends forwards beyond the inserting part.

Furthermore, two guiding positioning columns formed by extending forwards from the front end surface of the main body part are arranged below the inserting part, and a second limiting slot is arranged between the inserting part and the guiding positioning columns.

Further, the guiding and positioning column extends forwards beyond the inserting part.

Furthermore, a cavity is formed in the main body part, a plastic fixing part used for fixing the tail end of the line end conductive terminal group is fixedly arranged in the cavity, and the line end conductive terminal group extends forwards into the first inserting groove.

Furthermore, the line end conductive terminal group comprises 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 groove, the cable comprises a first cable and a second cable which are arranged in parallel, the first cable is electrically connected with the first conductive terminal group, and the second cable is electrically connected with the second conductive terminal group.

In one embodiment, the first cable and the second cable are both extended backward through the rear end of the main body.

In another embodiment, the first conductive terminal group is bent downward at one end connected with the plastic fixing member to form a first connecting portion, the second conductive terminal group is bent downward at one end connected with the plastic fixing member to form a second connecting portion, the first connecting portion and the second connecting portion are parallel to each other and staggered front and back, and the first cable and the second cable are both penetrated out downward from the bottom of the main body portion.

Further, the distance between the first connecting part and the second connecting part is 0.3-1.5 mm.

The buckle comprises a fixing part, an elastic part formed by bending one end of the fixing part upwards and a pressing part formed by extending the tail end of the elastic part upwards in an inclined mode, the fixing part is fixed in the buckle groove, and one end of the pull belt is connected with the pressing part.

Furthermore, a rear cover is arranged at the rear end of the main body part, a drawstring hole is formed in the upper portion of the rear cover, and one end of the drawstring penetrates through the drawstring hole and is connected with the pressing part of the buckle.

The utility model also discloses a connector subassembly, including cable connector and board end connector, cable connector be the aforesaid cable connector.

Furthermore, the board end connector comprises a board end insulating main body, a board end conductive terminal group fixedly arranged in the board end insulating main body and a shell sleeved on the outer side of the board end insulating main body. The plate end insulating main body is internally provided with a second inserting groove, the top of the shell is bent to form a clamping groove, the front ends of the inserting portion and the clamping portion of the cable connector are respectively inserted into the second inserting groove and the clamping groove, and the top plate of the plate end insulating main body is inserted into the first limiting slot.

Furthermore, an insulating plug board used for being inserted into the first plug groove is arranged inside the second plug 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 insulating insertion 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 insertion board, the third conductive terminal group and the fourth conductive terminal group are formed by sequentially and alternately arranging ground terminals and signal terminal pairs, each signal terminal pair consists of two signal terminals which are symmetrical to each other, and all the ground terminals are electrically connected with the conductive plastic strip.

Furthermore, the height of the insulating plug board is smaller than or equal to that of the first plug groove, and a gap for inserting the side wall of the insertion part is formed between the insulating plug board and the side wall of the board end insulating main body.

Further, in order to enhance the strength of the entire housing and prevent the side surface of the housing from being easily deformed, two fixing arms extending toward a side away from the cable connector are respectively disposed on two sides of the housing and two sides of the slot.

Furthermore, two sides of the housing respectively extend towards one side of the cable connector and form two L-shaped limiting plates for limiting the cable connector left and right.

The top of the shell is provided with a first U-shaped groove at the front end of the clamping groove, and the rear end of the buckling part of the cable connector is accommodated in the first U-shaped groove. The front end of the bottom of the shell is provided with a second U-shaped groove, the main body part of the cable connector is contained in the second U-shaped groove, and the cable connector is completely inserted into the shell. The structure can effectively reduce the total height of the matched products and improve the contact reliability of the products.

Furthermore, two guiding positioning columns formed by extending forwards from the front end face of the main body part are arranged below the inserting part, and two guiding holes for inserting the guiding positioning columns are formed in the bottom of the shell in a bending mode. A second limiting slot is formed between the bottom of the inserting portion and the top of the guiding positioning column, and a bottom plate of the plate end insulating main body is inserted into the second limiting slot.

Furthermore, a lock hole and an elastic sheet are respectively arranged at the side edge and the bottom of the shell, and a clamping block and an elastic sheet groove which are used for being in clamping fit with the lock hole and the elastic sheet are respectively arranged at the side edge and the bottom of the plate end insulating main body.

The utility model discloses following beneficial effect has: 1. the utility model provides a product with transmission speed of 56Gbps and 112Gbps, which meets the requirement of the client on the signal integrity of the product, and the cable connector can be completely inserted into the board end connector, so that the overall height of the connector component is less than 8mm, and the cable connector can be applied under a server radiator to save the space of a mainboard; 2. the cable connector can be guided by arranging the guide positioning columns and the guide holes, and meanwhile, the product can be prevented from being stressed, twisted and inclined, and the reliability of the product is improved; 3. the distance between the first connecting part and the second connecting part of the wire end conductive terminal group is set to be 0.3-1.5 mm, so that two rows of cables can be conveniently welded, and the signal integrity of a product can be improved; 4. the top of the shell is provided with a first U-shaped groove at the front end of the clamping groove, the rear end of the buckling part is contained in the first U-shaped groove, the front end of the bottom of the shell is provided with a second U-shaped groove, and the main body part of the cable connector is contained in the second U-shaped groove.

Drawings

Fig. 1 is a schematic perspective view of a cable connector according to an embodiment of the invention.

Fig. 2 is an exploded view of the components of fig. 1.

Fig. 3 is a schematic perspective view of the wire end insulating body.

Fig. 4 is a schematic view illustrating an installation of the neutral-end conductive terminal set according to an embodiment.

Fig. 5 is a schematic perspective view of a cable connector according to a second embodiment.

Fig. 6 is a schematic perspective view of a three-wire cable connector according to an embodiment.

Fig. 7 is an installation diagram of the three neutral terminal conductive terminal sets according to the embodiment.

Fig. 8 is a perspective view of a cable connector according to a fourth embodiment.

Fig. 9 is a schematic perspective view of a connector assembly according to a fifth embodiment.

Fig. 10 is a schematic perspective view of a five-plate middle-plate end connector according to an embodiment.

Fig. 11 is an exploded view of the component of fig. 9.

Fig. 12 is a schematic perspective view of a metal housing according to a fifth embodiment.

Fig. 13 is a schematic view of the arrangement of the conductive terminals of the line end conductive terminal set or the board end conductive terminal set.

Fig. 14 is a perspective view of a sixth embodiment of a connector assembly.

Fig. 15 is a schematic perspective view of a connector assembly according to a seventh embodiment.

Fig. 16 is a perspective view of a connector assembly according to an eighth embodiment.

Fig. 17 is a perspective view of a connector assembly according to the ninth embodiment.

Fig. 18 is a schematic perspective view of a metal shell according to a ninth embodiment.

Fig. 19 is a perspective view of a connector assembly according to a tenth embodiment.

Fig. 20 is a perspective view of a connector assembly according to an eleventh embodiment.

Fig. 21 is a perspective view of a connector assembly according to a twelfth embodiment.

Description of the main component symbols: 1. a wire end insulating body; 101. a first limit slot; 102. a second limit slot; 11. a main body portion; 110. a cavity; 111. a rear cover; 112. a drawstring hole is formed; 12. an insertion portion; 120. a first insertion groove; 13. a fastening part; 130. a fastening groove; 14. guiding the positioning column; 201. a ground terminal; 202. a signal terminal; 21. a first conductive terminal group; 211. a first connection portion; 22. a second conductive terminal group; 221. a second connecting portion; 23. a plastic fixing member; 3. a cable; 31. a first cable; 32. a second cable; 4. an inner mold; 5. buckling; 51. a fixed part; 52. an elastic portion; 521. clamping convex; 53. a pressing part; 6. pulling the belt; 7. a board end insulating main body; 701. a clamping block; 702. a spring sheet groove; 71. a second insertion groove; 72. an insulating plugboard; 8. a plate-end conductive terminal group; 801. a ground terminal; 802. a signal terminal; 81. a conductive plastic strip; 82. a third conductive terminal group; 83. a fourth conductive terminal group; 9. a metal housing; 90. a first U-shaped groove; 900. a second U-shaped groove; 901. a lock hole; 902. a spring plate; 91. a card slot; 92. a guide hole; 93. a clamping hole; 94. a fixed arm; 95. an L-shaped limiting plate; h: a spacing between the first connection and the second connection; a: the width of the ground terminal; b: the width of the signal terminal; a: a gap between the ground terminal and the signal terminal; b: signal terminals and gaps between the signal terminals.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Example one

As shown in fig. 1 to 4, a cable connector includes a cable end insulating main body 1, a cable end conductive terminal set, a cable 3, an inner mold 4, and a latch 5. The wire end insulating main body 1 includes a main body 11, an insertion portion 12 formed to extend forward from a front end surface of the main body 11, and a locking portion 13 formed to extend upward and forward from an upper surface of the main body 11. The part of the buckling part 13 extending out of the main body part 11 and the inserting part 12 are provided with a first limiting slot 101, and the top of the buckling part 13 is provided with a buckling slot 130 for installing the buckle 5. The front end of the insertion portion 12 is provided with a first inserting groove 120, and the terminal conductive terminals are assembled in the first inserting groove 120.

Preferably, the snap-in portion 13 is forward beyond the insertion portion 12.

Preferably, the front end face of the main body 11 has two forward extending guiding positioning posts 14 below the insertion part 12, a second limiting slot 102 is provided between the bottom of the insertion part 12 and the top of the guiding positioning posts 14, and the guiding positioning posts 14 protrude forward beyond the insertion part 12.

The buckle 5 includes a fixing portion 51, an elastic portion 52 formed by bending upward from one end of the fixing portion 51, and a pressing portion 53 formed by extending upward from the end of the elastic portion 52, and the fixing portion 51 is fixed in the buckle slot 130. The main body 11 has a cavity 110 formed therein, the main body 11 has a rear cover 111 at a rear end of the cavity 110, and the rear cover 111 is fixed to the main body 11 by a snap.

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

The first conductive terminal set 21 is bent downward at the end connected with the plastic fixture 23 to form a first connection portion 211, and the second conductive terminal set 22 is bent downward at the end connected with the plastic fixture 23 to form a second connection portion 221. The first connecting portion 211 and the second connecting portion 221 are parallel to each other and staggered from front to back, and preferably, the distance H between the first connecting portion 211 and the second connecting portion 221 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 portion 211, and the second cable 32 is welded to the second connection portion 221. The first cable 31 and the second cable 32 are both passed out downward from the bottom of the main body portion 11. The inner mold 4 is disposed in the cavity 110 and completely covers the welding point of the first cable 31 and the first connection portion 211 and the welding point of the second cable 32 and the second connection portion 221.

As shown in fig. 13, each of the first conductive terminal group 21 and the second terminal group 22 is formed by alternately arranging a ground terminal 201 and a signal terminal pair in order, and the signal terminal pair is formed by two signal terminals 202 which are symmetrical to each other.

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.

Example two

As shown in fig. 5, the present embodiment is different from the first embodiment only in that: the cable connector further comprises a pull strap 6, a pull strap hole 112 is formed in the upper portion of the rear cover 111, and one end of the pull strap 6 passes through the pull strap hole 112 and is connected with the pressing portion 53 of the buckle 5. The rest of the structure of the present embodiment is the same as that of the first embodiment.

EXAMPLE III

As shown in fig. 6 and 7, the present embodiment differs from the first embodiment only in that: the first conductive terminal group 21 and the second conductive terminal group 22 are not bent at the end connected with the plastic fixing member 23 to form a connecting portion. The first cable 31 and the first conductive terminal group 21 are welded together at a side close to the plastic fixing member 23, the second cable 32 and the second conductive terminal group 22 are welded together at a side close to the plastic fixing member 23, and both the first cable 31 and the second cable 32 are penetrated out from the rear cover 111. The rest of the structure of the present embodiment is the same as that of the first embodiment.

Example four

As shown in fig. 8, the present embodiment is different from the third embodiment only in that: the cable connector further comprises a pull strap 6, a pull strap hole 112 is formed in the upper portion of the rear cover 111, and one end of the pull strap 6 passes through the pull strap hole 112 and is connected with the pressing portion 53 of the buckle 5. The rest of the structure of the embodiment is the same as that of the embodiment.

EXAMPLE five

As shown in fig. 9-12, a connector assembly includes a cable connector and a board-side connector, wherein the cable connector is the cable connector of the first embodiment.

The plate end connector comprises a plate end insulating body 7, a plate end conductive terminal group 8 fixedly arranged in the plate end insulating body 7 and a metal shell 9 sleeved outside the plate end insulating body 7, and the plate end insulating body 7 is made of plastic. The side and the bottom of the metal shell 9 are respectively provided with a lock hole 901 and a spring plate 902, and the side and the bottom of the plate end insulating main body 7 are respectively provided with a fixture block 701 and a spring plate groove 702 which are used for being in clamping fit with the lock hole 901 and the spring plate 902.

The inside of the board end insulating main body 7 is provided with a first inserting groove 71 matched with the shape of the inserting part 12, the inserting part 12 is inserted into the first inserting groove 71, and the top arm of the board end insulating main body 7 is inserted into a first limiting slot 101 between the buckling part 13 and the inserting part 12. The top of the metal shell 9 is bent to form a slot 91, and the bottom of the metal shell 9 is bent to form two guide holes 92 for inserting the guide positioning columns 14. The buckle 5 is provided with two clamping protrusions 521 at the top of the elastic part 52, and the metal shell 9 is provided with two clamping holes 93 at the top of the clamping groove 91 for clamping with the two clamping protrusions 521. Two fixing arms 94 extending towards the side far away from the cable connector are respectively arranged on two sides of the metal shell 9 and two sides of the clamping groove 91.

The plate 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 insertion board 72 inside the first insertion groove 71, a conductive plastic strip 81 is embedded inside the insulating insertion board 72, and a third conductive terminal group 82 and a fourth conductive terminal group 83 are respectively arranged on the upper surface and the lower surface of the insulating insertion board 71. The height of the insulating plug plate 72 is less than or equal to the height of the first plug groove 120, and a gap for inserting the side wall of the insertion portion 12 is formed between the insulating plug plate 72 and the side wall of the plate-end insulating body 7. The plate-end conductive terminal group 8 is inserted into the first insertion groove 120, and the first conductive terminal group 21 and the second conductive terminal group 22 are respectively connected to the third conductive terminal group 82 and the fourth conductive terminal group 83 in a contact manner.

As shown in fig. 13, each of the third conductive terminal group 82 and the fourth conductive terminal group 83 is formed by alternately arranging ground terminals 801 and signal terminal pairs in sequence, each signal terminal pair is formed by two signal terminals 802 that are symmetrical to each other, and all the ground terminals 801 are electrically connected to the conductive plastic strip 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 two signal terminals 802.

The distance between the bottom of the front end of the buckling part 13 and the top of the insertion part 12 is greater than or equal to the thickness of the top plate of the plate end insulating main body 71, so that when the insertion part 12 is inserted into the first insertion groove 71, the top plate of the plate end insulating main body 71 can be inserted into the gap formed between the buckling part 13 and the insertion part 12. The height of the second limit slot 102 between the bottom of the insertion portion 12 and the top of the guiding positioning column 14 is greater than or equal to the thickness of the bottom plate of the plate end insulating main body 71, so that when the insertion portion 12 is inserted into the first insertion groove 71, the bottom plate of the plate end insulating main body 71 can be inserted into the second limit slot 102 formed between the insertion portion 12 and the guiding positioning column 14. The distance between the insulating plug plate 72 and the side wall of the plate end insulating main body 7 is greater than or equal to the thickness of the side wall of the insertion portion 12, so that the two side walls of the insertion portion 12 can be inserted into the two side gaps formed by the insulating plug plate 72 and the plate end insulating main body 7.

The utility model discloses a theory of operation does:

assembling the connector assembly: after the line end connector is assembled, the positions are aligned, the inserting portion 12, the buckling portion 13 and the two guiding positioning columns 14 of the line end connector are respectively inserted into the first inserting groove 71, the clamping groove 91 and the two guiding holes 92 of the plate end connector, and the two guiding positioning columns 14 can guide the inserting of the whole line end connector and prevent the product from being stressed, twisted and inclined. Meanwhile, the insulating plug board 72 on the board-end connector is inserted into the first plug groove 120 of the wire-end connector insertion portion 12, the third conductive terminal group is in contact conduction with the first conductive terminal group, and the fourth conductive terminal group is in contact conduction with the second conductive terminal group. The two clamping protrusions 521 at the top of the wire end connector are clamped into the two clamping holes 93 of the plate end connector to realize fixation.

Unlocking the connector assembly: pressing the pressing part 53 of the buckle 5 to move downwards, the elastic part 52 moves downwards along with the pressing part 53, the two clamping protrusions 521 at the top of the elastic part 52 are disengaged from the two clamping holes 93 of the metal shell 9, the cable connector is pulled to disengage the cable connector from the plate-end connector, and the unlocking is completed.

EXAMPLE six

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. The structure of the plate end connector of this embodiment is the same as that of the fifth embodiment.

When the connector assembly of the embodiment is unlocked, the pull belt 6 is pulled, the press part 53 of the buckle 5 is pulled by the pull belt 6 to move downwards, the elastic part 52 follows the press part 53 to move downwards, the two clamping protrusions 521 at the top of the elastic part 52 are separated from the two clamping holes 93 of the metal shell 9, the pull belt 6 is continuously pulled, the end connector is separated from the end connector, and the unlocking is completed.

EXAMPLE seven

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. The structure of the plate 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 follows the pressing portion 53 to move downward, the two locking protrusions 521 at the top of the elastic portion 52 disengage from the two locking holes 93 of the metal shell 9, the cable connector is pulled to disengage the cable connector from the plate-end connector, and the unlocking is completed.

Example eight

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. The structure of the plate end connector of this embodiment is the same as that of the fifth embodiment.

Example nine

As shown in fig. 17 and 18, a connector assembly includes a cable connector and a board end connector, wherein the cable connector is the cable connector in the first embodiment. The present embodiment is different from the fifth embodiment only in that: two sides of the metal shell 9 extend toward one side of the cable connector and form two L-shaped limiting plates 95 for limiting the cable connector left and right. A first U-shaped groove 90 is formed at the top of the metal shell 9 at the front end of the slot 91, the rear end of the fastening portion 13 of the cable connector is accommodated in the first U-shaped groove 90, a second U-shaped groove 900 is formed at the front end of the bottom of the metal shell 9, and 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 back of the metal shell 9 are lower than the side of the metal shell 9, so that the total height of the product after matching can be effectively reduced, the contact reliability of the product can be improved, and the cable connector can be prevented from shaking left and right.

Example 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. The structure of the plate end connector of this embodiment is the same as that of the ninth embodiment.

EXAMPLE eleven

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. The structure of the plate end connector of this embodiment is the same as that of the ninth embodiment.

Example twelve

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. The structure of the plate end connector of this embodiment is the same as that of the ninth embodiment.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a cable connector, includes the terminal insulation main part, establishes at the inside terminal conductive terminal group of terminal insulation main part, with the cable that terminal conductive terminal group electricity is connected and install the buckle in terminal insulation main part top, its characterized in that: the wire end insulating main body comprises a main body part, an inserting part formed by forward extending of the main body part and a buckling part formed by upward and forward extending of the upper surface of the main body part, wherein a buckling groove is formed in the top of the buckling part, the buckle is installed in the buckling groove, a first inserting groove is formed in the inserting part, a wire end conductive terminal is arranged in the first inserting groove, and a first limiting slot is formed between the part, extending out of the main body part, of the buckling part and the inserting part.

2. A cable connector as claimed in claim 1, wherein: the buckling part extends forwards beyond the inserting part.

3. A cable connector as claimed in claim 2, wherein: two guiding positioning columns formed by extending forwards from the front end face of the main body part are arranged below the inserting part, and a second limiting slot is formed between the inserting part and the guiding positioning columns.

4. A cable connector according to claim 3, wherein: the guiding positioning column extends forwards beyond the inserting part.

5. A cable connector as claimed in claim 1, wherein: the main body part is internally provided with a cavity, a plastic fixing piece for fixing the tail end of the line end conductive terminal group is fixedly arranged in the cavity, and the line end conductive terminal group extends forwards into the first plugging groove.

6. A cable connector according to claim 5, wherein: the cable comprises a first cable and a second cable which are arranged in parallel, the first cable is electrically connected with the first conductive terminal group, and the second cable is electrically connected with the second conductive terminal group.

7. A cable connector according to claim 6, wherein: the first cable and the second cable are both penetrated out backwards from the rear end of the main body part.

8. A cable connector according to claim 6, wherein: the first conductive terminal group is bent downwards at one end connected with the plastic fixing piece to form a first connecting portion, the second conductive terminal group is bent downwards at one end connected with the plastic fixing piece to form a second connecting portion, the first connecting portion and the second connecting portion are parallel to each other and are arranged in a staggered mode from front to back, and the first cable and the second cable are both penetrated out downwards from the bottom of the main body portion.

9. A cable connector according to claim 8, wherein: the distance between the first connecting part and the second connecting part is 0.3-1.5 mm.

10. A cable connector as claimed in claim 1, wherein: the buckle comprises a fixing part, an elastic part formed by bending one end of the fixing part upwards and a pressing part formed by extending the tail end of the elastic part in an upwards inclined mode, and one end of the pull belt is connected with the pressing part.

11. A cable connector according to claim 10, wherein: the rear end of the main body part 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 penetrates through the drawstring hole and is connected with the pressing part of the buckle.

12. A connector assembly comprising a cable connector and a board end connector, wherein: the cable connector according to any one of claims 1 to 11.

13. A connector assembly according to claim 12, wherein: the plate end connector comprises a plate end insulating main body, a plate end conductive terminal group and a shell, wherein the plate end conductive terminal group is fixedly arranged in the plate end insulating main body, the shell is sleeved on the outer side of the plate end insulating main body, a second inserting groove is formed in the plate end insulating main body, the top of the shell is bent to form a clamping groove, the front ends of an inserting portion and a clamping portion of the cable connector are respectively inserted into the second inserting groove and the clamping groove, and a top plate of the plate end insulating main body is inserted into the first limiting slot.

14. A connector assembly according to claim 13, wherein: the insulating insertion board used for being inserted into the first insertion groove is arranged inside the second insertion groove, 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 installed inside the insulating insertion board in an embedded mode, 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 insertion board, the third conductive terminal group and the fourth conductive terminal group are formed by sequentially and alternately arranging ground terminals and signal terminal pairs, the signal terminal pairs are composed of two signal terminals which are symmetrical to each other, and all the ground terminals are electrically connected with the conductive plastic strip.

15. A connector assembly according to claim 14, wherein: the height of the insulating plug board is smaller than or equal to that of the first plug groove, and a gap for inserting the side wall of the insertion part is formed between the insulating plug board and the side wall of the board end insulating main body.

16. A connector assembly according to claim 13, wherein: two fixing arms extending towards one side far away from the cable connector are respectively arranged on two sides of the shell and two sides of the clamping groove.

17. A connector assembly according to claim 13, wherein: two sides of the shell respectively extend towards one side of the cable connector and form two L-shaped limiting plates for limiting the cable connector left and right.

18. A connector assembly according to claim 13, wherein: the top of the shell is provided with a first U-shaped groove at the front end of the clamping groove, the rear end of the buckling part of the cable connector is contained in the first U-shaped groove, the front end of the bottom of the shell is provided with a second U-shaped groove, the main body part of the cable connector is contained in the second U-shaped groove, and the cable connector is completely inserted into the shell.

19. A connector assembly according to claim 13, wherein: two guide positioning columns formed by extending forwards from the front end face of the main body part are arranged below the insertion part, two guide holes for the guide positioning columns to insert into are formed in the bottom of the shell in a bending mode, a second limit slot is formed between the bottom of the insertion part and the tops of the guide positioning columns, and a bottom plate of the plate end insulation main body is inserted into the second limit slot.

20. A connector assembly according to any one of claims 13-19, wherein: the side and the bottom of shell are equipped with lockhole and shell fragment respectively, the side and the bottom of the insulating main part of board end are equipped with respectively and are used for with lockhole and shell fragment joint complex fixture block and shell fragment groove.