A kind of back panel connectorTechnical field
The present invention relates to connector technique fields, and in particular to a kind of back panel connector.
Background technique
As the high speed development and people of information technology are continuously increased data requirements, the transmission of a large amount of data forThe requirement of message transmission rate is also higher and higher.High speed connector, including back panel connector, board to board connector are connected with I/ODevice also positive higher rate development.
The back panel connector of the prior art, terminal assemblies are block form splicing construction, such as Patent No. CN204668627UDisclosed " a kind of earth shield structure of High speed rear panel connector ", discloses a kind of earth shield knot of High speed rear panel connectorStructure, the structure are that several electric connection insertion pieces are fixed using integrated plastic body, and the structure is only to electric connection insertion pieceFront end face, upper surface be fixed, since the slot of back panel connector is more, terminal assemblies are easy to loosen when plug, are easyPhenomena such as causing unstable installation end welding, contact jaw poor contact, influences the signal integrity of connector；On the other hand, as speciallyBenefit number is " lead frame assembly of insertion molding " disclosed in CN10641844A, lead frame assembly disclosed in this application, conduction touchingHead is the contact jaw of mono-contact type, is easy to produce insertion loss resonance and resonates with ground connection, influences the anti-crosstalk of entire connectorEnergy；And " holder of connector system " disclosed in Patent No. CN1830121A, biting end (contact jaw) disclosed in this applicationFor blade beam contact type structure, it is easy to happen poor contact, the hanging phenomenon in contact, affects quality of connection.
Summary of the invention
In view of the above problems, the present invention provides a kind of back panel connector, increased on the basis of traditional back panel connectorOne cover board enhances the stability of connector, and improves to contact jaw, can be maximum using the contact jaw of double-contact formulaPoor contact, the hanging contact bring loss of signal are reduced to limit, the signal integrity of connector is improved.
To achieve the above object, the present invention solves by the following technical programs:
A kind of back panel connector including connector body, the front cover that is set in the connector body front end, is set in the companyThe bottom plate and lid that connect device ontology lower end are located at the cover board of the connector body upper end and rear end, and the connector body is by mA terminal assemblies composition being set side by side, the terminal assemblies include plastic body and the n that is embedded on the plastic bodyA conductive terminal, the conductive terminal include stretching out the installation end of the plastic body lower end, in the plastic bodyConnecting pin and the contact jaw for stretching out the plastic body front end, the front cover are equipped with m × n and are inserted into for the contact jawSpliced eye, the bottom plate is equipped with the m × n mounting hole that passes through of the confession installation end, and the plastic body rear end is additionally provided withFirst limited block, the second limited block, the cover board are equipped with the first limit being inserted into for first limited block, the second limited blockHole, the second limit hole, the plastic body upper end are equipped with T-type block, have gap between the T-type block of adjacent two,The cover board is close to the front cover side and is additionally provided with m-1 plate, and the plate is inserted into the corresponding gap.
Specifically, the contact jaw include the bending part A being connect with the connecting pin, it is bending part B, the bending part A, curvedFolding part B is connected with vertical component effect jointly, and the vertical component effect end is connected with bending section A, bending section B, the institute of the same contact jawState bending section A, bending section B is arranged in parallel and is located in the same spliced eye.
Specifically, the one side of the front cover is additionally provided with the first heat release hole, first heat release hole is located at the bending partA, the side bending part B.
Specifically, the bottom plate is equipped with several locating pieces, the junction of the cover board and the bottom plate be equipped with it is several withThe matched location hole of locating piece.
Specifically, the cover board is metal shielding board.
Specifically, m=8, n=12.
Specifically, being additionally provided with multiple second heat release holes on the plastic body, the connecting pin is located at the institute of corresponding positionIt states in the second heat release hole.
Specifically, the plastic body is close to one jiao of the cover board as chamfering, second limit hole include vertical hole,Arcuate socket, second limited block are specifically inserted into the vertical hole, and the arcuate socket is located at the chamfering upper end, the cover boardA perforation is formed between all chamferings.
The beneficial effects of the present invention are:
First, back panel connector of the invention increases a cover board on the basis of traditional back panel connector, and cover board is to connectionUpper end, the rear end of device ontology are fixed, and connector body front end is fixed in front cover, and bottom plate is to connector body bottomIt is fixed, corrects and limit the position of contact jaw and installation end, avoid the terminal assemblies being set side by side and loosen, enhanceThe stability of connector, it is ensured that connector has enough retentivities；
Second, using the contact jaw of double-contact formula, compared with typical blade beam contact type structure, while can subtract to the maximum extentFew poor contact, the hanging contact bring loss of signal, improve the signal integrity of connector, in addition, contact (bending section A,Bending section B) bending setting, make connector that there is brilliant contact positive force and extremely low contact engaging and separating force, and contact jaw head is graduallyRefinement can eliminate unnecessary insertion loss resonance, improve the anti-crosstalk performance of connector.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view one of back panel connector of the invention.
Fig. 2 is a kind of schematic perspective view two of back panel connector of the invention.
Fig. 3 is a kind of explosive view of back panel connector of the invention.
Fig. 4 is the structural schematic diagram of terminal assemblies of the invention.
Fig. 5 is the structural schematic diagram of plastic body of the invention.
Fig. 6 is the structural schematic diagram of conductive terminal of the invention.
Fig. 7 is the enlarged drawing of the part E in Fig. 6.
Appended drawing reference are as follows: connector body 1, terminal assemblies 11, plastic body 111, the limit of the first limited block 1111, secondBlock 1112, the second heat release hole 1114, perforation 1115, conductive terminal 112, installation end 101, connecting pin 102, connects T-type block 1113Contravention 103, bending part A1031, bending part B1032, vertical component effect 1033, bending section A1034, bending section B1035, front cover 2, graftingHole 21, bottom plate 3, mounting hole 31, locating piece 32, cover board 4, the first limit hole 41, the second limit hole 42, is hung down at first heat release hole 22Straight hole 421, arcuate socket 422, plate 43, location hole 44, chamfering 451.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimitedIn this.
As shown in figs. 1-7:
A kind of back panel connector including connector body 1, the front cover 2 that is set in 1 front end of connector body, is set in connectorThe bottom plate 3 and lid of 1 lower end of ontology are located at the cover board 4 of 1 upper end of connector body and rear end, and connector body 1 is arranged side by side by mThe terminal assemblies 11 of setting form, and terminal assemblies 11 include that plastic body 111 and the n being embedded on plastic body 111 leadElectric terminal 112, conductive terminal 112 include stretching out the installation end 101 of 111 lower end of plastic body, the company in plastic body 111It connects end 102 and stretches out the contact jaw 103 of 111 front end of plastic body, front cover 2 is equipped with m × n for the insertion of contact jaw 103Spliced eye 21, bottom plate 3 are equipped with the m × n mounting holes 31 passed through for installation end 101, and 111 rear end of plastic body is additionally provided with firstLimited block 1111, the second limited block 1112, cover board 4 are equipped with the be inserted into for the first limited block 1111, the second limited block 1112One limit hole 41, the second limit hole 42,111 upper end of plastic body are equipped with T-type block 1113, two adjacent T-type blocks 1113Between there is gap, cover board 4 is additionally provided with m-1 plate 43 by 2 side of front cover, and plate 43 is inserted into corresponding gap, front cover 2By being fixed for 1 front end of connector body, 1 lower end of connector body is fixed bottom plate 3, and cover board 4 is by connector body 1Upper end, rear end are fixed, the fixed function in multiple orientation, keep the terminal assemblies 11 being set side by side fixed in correct positionOn, it can be avoided terminal assemblies 11 and loosened, to affect the stability of connector.
Preferably, contact jaw 103 includes the bending part A1031 connecting with connecting pin 102, bending part B1032, bending partA1031, bending part B1032 are connected with vertical component effect 1033 jointly, and 1033 end of vertical component effect is connected with bending section A1034, bending sectionB1035, bending section A1034, the bending section B1035 of same contact jaw 103 are arranged in parallel and are located in same spliced eye 21, contactEnd 103 uses bending section A1034, the bending section B1035 of double-contact formula, compared with typical blade beam contact type structure, simultaneouslyPoor contact, the hanging contact bring loss of signal can be reduced to the maximum extent, improve the signal integrity of connector, separatelyOutside, bending section A, bending section B bending setting makes connector have brilliant contact positive force and extremely low contact engaging and separating force, and is bentPortion A1034, the bending section end B1035 gradually refine, and can eliminate unnecessary insertion loss resonance, improve the anti-of connectorCrosstalk performance.
Preferably, in order to improve the heat dissipation performance of contact jaw 103, the one side of front cover 2 is additionally provided with the first heat release hole 22, andOne heat release hole 22 is located at bending part A1031, the side bending part B1032.
Preferably, bottom plate 3 is equipped with several locating pieces 32, and cover board 4 and the junction of bottom plate 3 are equipped with several and locating piece 32Bottom plate 3 when installation, is first mounted on 1 lower end of connector body, then by the location hole 44 on cover board 4 by matched location hole 44It is pushed into along locating piece 32, cover board 4 can be installed to correct position, plate 43 is inserted between two T-type blocks 1113 at this timeIn gap, the first limited block 1111, the second limited block 1112 respectively enter the first limit hole 41, in the second limit hole 42.
Preferably, in order to improve anti-crosstalk, the anti-electromagnetic interference capability of connector, cover board 4 is metal shielding board.
Preferably, m=8, n=12.
Preferably, in order to improve the heat dissipation performance of conductive terminal 112, it is additionally provided with multiple second on plastic body 111 and dissipatesHot hole 1114, connecting pin 102 are located in the second heat release hole 1114 of corresponding position.
Preferably, plastic body 111 is close to one jiao of cover board 4 as chamfering 451, the second limit hole 42 include vertical hole 421,Arcuate socket 422, the second limited block 1112 is specifically in insertion vertical hole 421, and arcuate socket 422 is located at 451 upper end of chamfering, cover board 4 andA perforation 1115 is formed between all chamferings 451, be can be inserted into mounting bar or screw of counter structure etc. in perforation 1115, is usedIt is fixed in by connector end, improves the stability of connector.
One embodiment of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneouslyLimitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the artFor, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the inventionProtect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.