CN212968224U - Cable connector and connector assembly - Google Patents

Abstract

The utility model discloses a cable connector, including insulating main part, conductive terminal group and cable. The front end of the insulating main body is provided with a plug-in slot, the conductive terminal group comprises a first terminal row and a second terminal row, and the first terminal row and the second terminal row are both composed of a plurality of conductive terminals. The conductive terminal comprises a fixing part, a contact part formed by bending from the front end of the fixing part and a welding part formed by bending downwards from the rear end of the fixing part, and the contact part of the first terminal row and the contact part of the second terminal row are symmetrically arranged on the upper side and the lower side of the insertion groove. The welding parts of the first terminal row and the welding parts of the second terminal row are arranged in parallel and are electrically connected with the cable. The minimum pitch between the contact portions of the first terminal row and the contact portions of the second terminal row is 1.25 to 4 times the pitch between the soldering portions of the first terminal row and the soldering portions of the second terminal row. The cable connector can meet the requirement of low-profile size and simultaneously avoid signal interference between terminal blocks to the maximum extent.

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

The traditional PCB has more and more limitation on signal transmission, and because the PCB is greatly attenuated in time and the signal integrity is affected, the attenuation needs to be reduced by adopting a connector mode. The connector products used at present usually have a problem of high height, and are not suitable for being used around the server chip, so a low-profile connector capable of being placed under the heat sink needs to be developed to fully utilize the space of the server motherboard. However, if the connector is designed to be too short, signal interference between the upper and lower rows of terminal rows will occur, which may affect the signal integrity of the product. It is imperative to develop a connector product that ensures both low profile size requirements and signal integrity.

SUMMERY OF THE UTILITY MODEL

To the technical problem who proposes in the background art, the utility model aims to provide a can enough guarantee low type size demand and can guarantee cable connector and connector assembly of signal integrality again.

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

a cable connector includes an insulating main body, a conductive terminal group, and a cable. The front end of the insulating main body is provided with a plug-in groove, the conductive terminal group comprises a first terminal row and a second terminal row, and the first terminal row and the second terminal row are composed of a plurality of conductive terminals arranged along the width direction of the plug-in groove. The conductive terminal comprises a fixing part, a contact part formed by bending the front end of the fixing part and a welding part formed by bending the rear end of the fixing part downwards, and the contact part of the first terminal row and the contact part of the second terminal row are symmetrically arranged on the upper side and the lower side of the insertion groove. The welding part of first terminal row and the welding part of second terminal row be parallel to each other set up and all with the cable electricity is connected, the cable is worn out downwards by insulating body bottom. The minimum pitch between the contact portions of the first terminal row and the contact portions of the second terminal row is 1.25 to 4 times the pitch between the soldering portions of the first terminal row and the soldering portions of the second terminal row.

Furthermore, the insulating body also comprises a locking piece which is arranged on the top of the insulating body.

The lock catch is positioned above the left side of the pull strap hole, and one end of the pull strap penetrates through the pull strap hole and is connected with the lock catch.

The insulating main body comprises a front shell and a rear cover clamped at the rear end of the front shell, and the pull belt hole is formed in the rear cover.

Preferably, the rear end surface of the rear cover extends rearward to form a protruding portion, and the drawstring hole is provided in the protruding portion and vertically penetrates the protruding portion.

Further, the back lid including the back lid body and certainly the left and right sides of back lid body extends two joint boards that form forward respectively, the joint board on seted up first calorie of hole, the confession has been seted up to the rear end lower part of preceding shell the storage tank that back lid body card was gone into, the confession has been seted up respectively to the left and right sides lower part of preceding shell the draw-in groove that joint board card was gone into, be equipped with on the internal face of draw-in groove be used for with the first card of first draw-in groove joint is protruding.

Preferably, in order to enable the front shell and the rear cover to be matched more stably, one to more second clamping protrusions are arranged at the top of the rear cover, and one to more second clamping holes used for being clamped with the second clamping protrusions are formed in corresponding positions of the top of the front shell.

Further, the front shell comprises a body part, an insertion part formed by extending forwards from the front end face of the body part, and a locking part formed by extending upwards and forwards from the top of the body part. The inserting groove is arranged at the front end of the inserting part, a first limiting inserting groove is formed between the part, extending out of the body part, of the lock catch part and the inserting part, two guiding positioning columns formed by extending forwards from the front end face of the body part are arranged below the inserting part, and a second limiting inserting groove is formed between the inserting part and the guiding positioning columns.

Preferably, in order to better realize the insertion fit with the plate end connector, the front end surface of the insertion part extends forwards between the two guiding and positioning columns to form a limiting block.

Furthermore, a cavity is formed in the insulating main body, a plastic fixing piece is fixedly arranged in the cavity and comprises a first plastic fixing piece used for fixing the first terminal row and a second plastic fixing piece used for fixing the second terminal row, the first terminal row and the second terminal row are formed by alternately arranging ground terminals and signal terminal pairs according to a sequence, and the signal terminal pairs consist of two symmetrical signal terminals. The bottom of the first plastic fixing piece is provided with a first conductive strip, and all the ground wire terminals of the first terminal row are in conductive connection with the first conductive strip. And a second conductive strip is arranged at the bottom of the second plastic fixing piece, and all the ground wire terminals of the second terminal row are in conductive connection with the second conductive strip.

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 shell, a tongue piece fixedly arranged in the shell and used for being in contact fit with the conductive terminal group, and a shell sleeved on the outer side of the shell.

Preferably, the bottom of the housing is bent to form a limiting groove, the front end of the insulating main body of the cable connector is provided with a limiting block matched with the limiting groove in shape, and the limiting block is inserted into the limiting groove to achieve positioning.

The utility model discloses following beneficial effect has:

1. the cable connector of the utility model can ensure the requirement of low size, so that the overall height of the assembled connector assembly is less than 8mm, the cable connector can be applied under a server radiator, the space of a mainboard is saved, the signal interference between terminal rows can be avoided to the maximum extent, and the signal integrity of a product is ensured;

2. the shell is divided into a front shell and a rear cover, the drawstring holes are arranged on the protruding parts, the whole structure is reasonable in design, the die stripping is easy, the parts are compactly matched, and the assembled connector is small in size, stable and firm and good in contact reliability;

3. the cable connector can be guided by arranging the guide positioning columns and the guide holes, the product can be prevented from being stressed to twist, the reliability of the product is improved, and the connector assembly is more stable and reliable after being matched in an inserting mode by arranging the limiting blocks and the limiting grooves.

Drawings

Fig. 1 is a perspective view of a cable connector.

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

Fig. 3 is a front view of the cable connector.

Fig. 4 is a bottom view of the cable connector.

Fig. 5 is a side view of the cable connector.

Fig. 6 is a schematic sectional view taken along the direction a-a in fig. 5.

Fig. 7 is a positional relationship diagram of the first terminal row and the second terminal row.

Fig. 8 is a perspective view of the front case.

Fig. 9 is a schematic perspective view of the front case at another angle.

Fig. 10 is a perspective view of the rear cover.

Fig. 11 is a diagram showing a connection relationship between the first terminal row and the second terminal row and the first conductive strip and the second conductive strip.

Fig. 12 is a schematic view of the arrangement of conductive terminals of the first terminal row/the second terminal row.

Fig. 13 is a perspective view of the connector assembly.

Fig. 14 is a perspective view of the plate end connector.

Description of the main component symbols: 1. an insulating body; 10. inserting grooves; 100. a drawstring hole is formed; 101. a first limit slot; 102. a second limit slot; 103. injecting glue holes; 11. a front housing; 111. a containing groove; 112. a card slot; 113. a first snap projection; 114. a second card hole; 115. a body portion; 116. an insertion portion; 117. a locking part; 118. guiding the positioning column; 119. a limiting block; 12. a rear cover; 120. a protrusion; 121. a rear cover body; 122. a clamping and connecting plate; 123. a first card hole; 124. a second snap projection; 2. a conductive terminal group; 20. a conductive terminal; 201. a fixed part; 202. a contact portion; 203. welding the part; 204. a ground terminal; 205. a signal terminal; 21. a first terminal row; 22. a second terminal row; 3. a cable; 4. a fastener; 5. pulling the belt; 6. a plastic fixing member; 61. a first plastic fixing member; 610. a first conductive strip; 62. a second plastic fixing member; 620. a second conductive strip; 7. an inner mold; 8. a plate end connector; 81. a housing; 82. a tongue piece; 83. a housing; 830. a limiting groove; h: a pitch between the solder portions of the first terminal row and the solder portions of the second terminal row; h: the contact portions of the first terminal row and the contact portions of the second terminal row have a minimum pitch therebetween.

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 12, a cable connector includes an insulatingbody 1, a conductiveterminal group 2, acable 3, a lockingmember 4, and apull tape 5. The front end of the insulatingmain body 1 is provided with aninsertion groove 10, the conductiveterminal group 2 comprises a firstterminal row 21 and a secondterminal row 22, and the firstterminal row 21 and the secondterminal row 22 are respectively composed of a plurality of conductive terminals 20 arranged along the width direction of theinsertion groove 10. The conductive terminal 20 includes a fixingportion 201, acontact portion 202 bent from the front end of the fixingportion 201, and asoldering portion 203 bent downward from the rear end of the fixingportion 201, and thecontact portion 202 of the firstterminal row 21 and thecontact portion 202 of the secondterminal row 22 are symmetrically disposed on the upper and lower sides of the insertinggroove 10. Thesoldering portions 203 of the firstterminal row 21 and thesoldering portions 203 of the secondterminal row 22 are parallel to each other and are electrically connected to thecable 3, and thecable 3 passes through the bottom of the insulatingmain body 1. The minimum pitch between thecontact portions 202 of the firstterminal row 21 and thecontact portions 202 of the secondterminal row 22 is 1.25 to 4 times the pitch between thesoldering portions 203 of the firstterminal row 21 and thesoldering portions 203 of the secondterminal row 22.

The lockingfastener 4 is arranged on the top of the insulatingbody 1, apull strap hole 100 is formed in the rear end face of the insulatingbody 1, the lockingfastener 4 is located above thepull strap hole 100, and one end of thepull strap 5 penetrates through thepull strap hole 100 and is connected with the lockingfastener 4.

The insulationmain body 1 includes afront case 11 and arear cover 12 fastened to the rear end of thefront case 11, and apull tape hole 100 is formed in therear cover 12. Preferably, the rear end surface of therear cover 12 is extended rearward to form aprotrusion 120, and thedrawstring hole 100 is provided on theprotrusion 120 and penetrates theprotrusion 120 in the vertical direction.

Therear cover 12 includes arear cover body 121 and two clampingplates 122 extending forward from the left and right sides of therear cover body 121 to form, afirst clamping hole 123 is formed in theclamping plate 122, a containinggroove 111 for therear cover body 121 to be clamped is formed in the lower portion of the rear end of thefront shell 11, clampinggrooves 112 for the clampingplates 122 to be clamped are formed in the lower portions of the left and right sides of thefront shell 11, and first clampingprotrusions 113 used for being clamped with the first clamping holes 123 are formed in the inner wall surface of the clampinggrooves 112. Preferably, one or more second lockingprotrusions 124 are disposed on the top of therear cover 12, and one or more second locking holes 114 for locking with the second lockingprotrusions 124 are disposed at corresponding positions on the top of thefront housing 11.

Thefront housing 11 includes amain body 115, aninsertion portion 116 formed to extend forward from a front end surface of themain body 115, and a lockingportion 117 formed to extend upward and forward from a top of themain body 115. The insertinggroove 10 is arranged at the front end of the insertingpart 116, and the lockingpart 117 extends out of thebody part 115 and has a firstlimit inserting groove 101 between the insertingpart 116. Preferably, the lockingportions 117 are forward beyond theinsertion portion 116.

Two guidingpositioning columns 118 formed by extending forwards from the front end face of themain body part 115 are arranged below the insertingpart 116, and a second limitingslot 102 is arranged between the insertingpart 116 and the guidingpositioning columns 118. Preferably,pilot locator post 118 is advanced beyondinsert 116. Preferably, the front end surface of theinsertion portion 116 extends forward between the two guidingpositioning posts 118 to form astop 119.

The insulatingmain body 1 is provided with a cavity inside, and a plastic fixing member is fixedly arranged inside the cavity, and the plastic fixing member comprises a firstplastic fixing member 61 for fixing the firstterminal row 21 and a secondplastic fixing member 62 for fixing the secondterminal row 22. The firstterminal row 21 and the secondterminal row 22 are formed by alternately arranging theground terminals 204 and the signal terminal pairs in sequence, and thesignal terminal pair 205 is formed by twosignal terminals 205 which are symmetrical to each other. The bottom of the firstplastic fixing member 61 is provided with a first conductive strip 610, and all theground terminals 204 of the firstterminal row 21 are conductively connected to the first conductive strip 610. The bottom of the secondplastic fastener 62 is provided with a second conductive strip 620, and all theground terminals 204 of the secondterminal row 22 are conductively connected to the second conductive strip 620. The inside of cavity is equipped with thecentre form 7 that is used for cladding solder joint betweencable 3 and the conductiveterminal group 2welding part 203, offers the injectingglue hole 103 that is used for thecentre form 7 of moulding plastics on the lateral wall of insulatingmain part 1.

Example two

As shown in fig. 13 and 14, a connector assembly includes a cable connector and aboard end connector 8, wherein the cable connector is the cable connector in the embodiment. Theboard end connector 8 includes ahousing 81, atongue 82 fixed inside thehousing 81 and adapted to contact and mate with the conductive terminal set 2, and ashell 83 covering thehousing 81. Preferably, the bottom of thehousing 83 is bent to form a limitinggroove 830, the front end of the insulatingmain body 1 of the cable connector is provided with a limitingblock 119 adapted to the shape of the limitinggroove 830, and the limitingblock 119 is inserted into the limitinggroove 830 to achieve positioning.

In the present embodiment, the thickness of thetongue piece 82 of the board-end connector 8 is 2mm, the minimum distance H between thecontact portions 202 of the firstterminal row 21 and thecontact portions 202 of the secondterminal row 22 of the cable connector is 1.4 to 2mm, and the minimum distance H between thecontact portions 202 of the firstterminal row 21 and thecontact portions 202 of the secondterminal row 22 is 1.25 to 4 times the distance H between thesoldering portions 203 of the firstterminal row 21 and thesoldering portions 203 of the secondterminal row 22. The above values are merely for the purpose of describing the relationship between the thickness of thetongue 82 of theplate end connector 8 and h, and the thickness of the tongue 92 may be any other value.

The utility model discloses a connector assembly is when the unblock, pulling stretchingstrap 5, 5 pullinglocking fastener 4 of stretching strap make two blocks at lockingfastener 4 top protruding break away from two card holes ofmetal casing 83, pull cable connector and make cable connector break away fromend connector 8, and the unblock is accomplished.

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 (13)

1. A cable connector comprises an insulation main body, a conductive terminal group and a cable, and is characterized in that: the front end of the insulating main body is provided with an inserting groove, the conductive terminal group comprises a first terminal row and a second terminal row, the first terminal row and the second terminal row are both composed of a plurality of conductive terminals arranged along the width direction of the inserting groove, the conductive terminal comprises a fixed part, a contact part formed by bending from the front end of the fixed part and a welding part formed by bending downwards from the rear end of the fixed part, the contact part of the first terminal row and the contact part of the second terminal row are symmetrically arranged at the upper side and the lower side of the inserting groove, the welding part of the first terminal row and the welding part of the second terminal row are arranged in parallel and are electrically connected with the cable, the cable is worn out downwards by the insulating main part bottom, and the minimum interval between the contact portion of first terminal row and the contact portion of second terminal row is 1.25 ~ 4 times of the interval between the welding part of first terminal row and the welding part of second terminal row.

2. A cable connector as claimed in claim 1, wherein: the insulating body is characterized by also comprising a locking piece, wherein the locking piece is arranged on the top of the insulating body.

3. A cable connector as claimed in claim 2, wherein: the rear end face of the insulating main body is provided with a pull belt hole, the locking piece is positioned above the left side of the pull belt hole, and one end of the pull belt penetrates through the pull belt hole and is connected with the locking piece.

4. A cable connector according to claim 3, wherein: the insulating main body comprises a front shell and a rear cover clamped at the rear end of the front shell, and the pull belt hole is formed in the rear cover.

5. A cable connector according to claim 4, wherein: the rear end surface of the rear cover extends backwards to form a protruding part, and the drawstring hole is arranged on the protruding part and penetrates through the protruding part in the vertical direction.

6. A cable connector according to claim 4, wherein: the back lid include the back lid body and certainly the left and right sides of back lid body extends two joint boards that form forward respectively, the joint board on seted up first calorie of hole, the confession has been seted up to the rear end lower part of preceding shell the storage tank that back lid body card was gone into, the confession has been seted up respectively to the left and right sides lower part of preceding shell the draw-in groove that joint board card was gone into, be equipped with on the internal face of draw-in groove be used for with the first card of first draw-in groove hole joint is protruding.

7. A cable connector according to claim 6, wherein: the top of back lid is equipped with one to a plurality of second card protruding, seted up one to a plurality of on the top relevant position of preceding shell be used for with the second card protruding looks joint second card hole.

8. A cable connector according to claim 4, wherein: the front shell comprises a body part, an insertion part and a locking part, wherein the insertion part is formed by extending the front end face of the body part forwards, the locking part is formed by extending the top of the body part upwards and forwards, the insertion groove is formed in the front end of the insertion part, a first limiting insertion groove is formed between the part, extending out of the body part, of the locking part and the insertion part, two guiding positioning columns are formed by extending the front end face of the body part forwards below the insertion part, and a second limiting insertion groove is formed between the insertion part and the guiding positioning columns.

9. A cable connector according to claim 8, wherein: the front end surface of the insertion part extends forwards between the two guiding positioning columns to form a limiting block.

10. A cable connector as claimed in claim 1, wherein: the cavity has been seted up to the inside of insulating main part, the inside of cavity has set firmly the plastic mounting, the plastic mounting including being used for fixing first plastic mounting that first terminal was arranged and being used for fixing the second plastic mounting that second terminal was arranged, first terminal row and second terminal row form by earth wire and signal terminal pair according to the preface NULL, signal terminal pair constitute by the signal terminal of two mutual symmetries, the bottom of first plastic mounting is equipped with first busbar, all earth wire terminals that first terminal was arranged all with first busbar turn-on connection, the bottom of second plastic mounting is equipped with the second busbar, all earth wire terminals that second terminal was arranged all with second busbar turn-on connection.

11. A connector assembly comprising a cable connector and a board end connector, wherein: the cable connector according to any one of claims 1 to 10.

12. A connector assembly according to claim 11, wherein: the plate end connector comprises a shell, a tongue piece fixedly arranged in the shell and used for being in contact fit with the conductive terminal group, and a shell sleeved on the outer side of the shell.

13. A connector assembly according to claim 12, wherein: the bottom of the shell is bent to form a limiting groove, the front end of the insulating main body of the cable connector is provided with a limiting block matched with the limiting groove in shape, and the limiting block is inserted into the limiting groove to achieve positioning.

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