CN214505837U - Novel connector - Google Patents

Abstract

The utility model provides a novel connector, which comprises a connector body, an upper row of terminals and a lower row of terminals; part of the upper row of terminals and the lower row of terminals are also connected with the conductive rubber sleeve, the utility model discloses a conductive rubber sleeve connects the ground terminals of the upper row of terminals and the lower row of terminals together to form a loop, and separates the signal differential pair to play the role of shielding, reduces the crosstalk between the signal pair, and the conductive rubber sleeve is blocked and arranged in the connector body; can satisfy the horizontal card insertion and can also satisfy the 20-degree card insertion. The utility model can meet the speed of 16Gt/s when being provided with the conductive rubber sleeve, and can not be provided with the conductive rubber sleeve to reduce the cost if only meeting the speed of 8 GT/s; in addition, all the grounding pins are connected together through the conductive rubber sleeve to form a loop, and meanwhile, the signal differential pairs are separated to play a shielding role, so that the mutual crosstalk of the signal pairs is reduced. The utility model discloses can improve the SI performance, like impedance, insert the loss, return loss.

Description

Novel connector

Technical Field

The utility model belongs to the technical field of the connector technique and specifically relates to a novel connector suitable for PCIe 4.0.

Background

A connector, which is widely used for an automotive power and signal integrated automatic control device, is generally equipped with an insulator and a plurality of contacts, in which a circuit board (rigid board) is electrically connected to a thin plate-like (thin sheet or thin plate) connection object (e.g., an expansion card, a PCI card, or an FPC, etc.) through the connector. The insulator is provided with a groove into which a connection object is insertable and from which the connection object is removable, a plurality of contact insertion grooves which are elongated in a connection object insertion/removal direction and arranged in a direction perpendicular to the connection object insertion/removal direction, and a plurality of contacts which are respectively inserted into the plurality of contact insertion grooves of the insulator. Also, the insulator is provided with a plurality of partition walls so that each partition wall separates adjacent contact insertion grooves from each other. On the other hand, each of the plurality of contacts is provided with a base fixed to an inner side of each of the contact insertion grooves, an elastically deformable portion extending from the base in an insertion/removal direction of the connection object and elastically deformable in a thickness direction of the connection object, and a contact portion formed on the elastically deformable portion. The connector is mounted on a circuit board having contacts connected to a circuit pattern formed on a surface of the circuit board.

When the connection object is inserted into the connection object insertion/removal groove of the insulator, the terminal provided on the connection object is brought into contact with each contact portion of the plurality of contacts while elastically deforming the corresponding elastically deformable portion of each contact, so that the circuit board and the connection object are electrically connected to each other through the plurality of contacts.

US4,971,580 discloses an electrical connector comprising a combined card (insert) of a terminal alignment (TPA) and a connector alignment (CPA). The TPA insert has a plurality of fingers that can be pressed against the terminals to position the terminals. The TPA insert is flat, and the flat TPA insert made of plastic is easy to deform under stress, particularly when the thickness of the TPA insert is thin. TPA inserts that are easily deformed can be damaged if carelessly done during assembly. Further, the TPA insert inserted into the electrical connector is stressed and may become deformed and disengaged.

US4,891,021 discloses a multi-contact electrical connector (multi-contact electrical connector). The multi-contact electrical connector has a terminal alignment insert containing a finger with a latch at the end of the finger. Because the fasteners are fixed in the plug, the terminal slots need to have sufficient clearance for the fasteners to pass through in order for the terminal positioning insert to be easily inserted. However, this sufficient clearance increases the size of the multi-contact electrical connector and allows the fingers of the terminal retention insert to move when the terminal retention insert is under tension, causing the fastener to loosen.

However, the existing connectors are difficult to satisfy CIe 4.016 GT/S rate, and because the TH-type connector terminal expansion length is relatively longer than that of the vertical SMT terminal, the terminal cross section area consistency is poor, and the characteristic impedance and SI performance are poor, so that few PCIe RA TH-type connectors capable of satisfying 16GT/S rate are on the market.

Disclosure of Invention

To prior art not enough, the utility model provides a novel connector, this the connector have better characteristic impedance and SI performance.

The technical scheme of the utility model is that: a novel connector comprises a connector body, and a plurality of groups of upper-row terminals and lower-row terminals which are matched with each other and are arranged in the connector body;

part of the upper row of terminals and the lower row of terminals are also connected with a conductive rubber sleeve, the conductive rubber sleeve connects the grounding terminals of the upper row of terminals and the lower row of terminals together to form a loop, and simultaneously separates signal differential pairs to play a role in shielding and reduce crosstalk between the signal pairs, and the conductive rubber sleeve is clamped in the connector body;

the included angle between the contact ends of the upper row of terminals and the lower row of terminals and the horizontal direction is 20 degrees, and the included angle between the contact ends of the upper row of terminals and the lower row of terminals is 40 degrees, so that the requirement of horizontal card insertion and 20-degree card insertion can be met.

Preferably, the upper row of terminals and the lower row of terminals are formed by stamping and bending high-conductivity copper materials.

Preferably, the thickness of the upper row of terminals and the lower row of terminals is less than 0.25 mm.

Preferably, each set of the upper row terminals includes 2 upper row terminals with the same structure, and each set of the lower row terminals includes 2 lower row terminals with the same structure.

Preferably, the upper row of terminals includes an upper row of terminal main body, the upper row of terminal main body includes a first connection section and a second connection section which are integrally formed, the first connection section and the second connection section are both in an irregular Z-shaped structure, and the second connection sections of the two upper row of terminals form a Y-shaped structure.

Preferably, a first groove is formed in the connecting portion of the first connecting section and the second connecting section, so that the terminal can be conveniently bent through the first groove, internal stress of the terminal can be reduced, and SI performance can be improved.

Preferably, the first connecting section is provided with a first clamping portion, and the first clamping portion comprises a protrusion protruding outwards and an arc-shaped groove arranged on the protrusion.

Preferably, one end of the first connecting section, which is far away from the second connecting section, is provided with a first contact end, the first contact end is in a V-shaped structure, and an included angle between the first contact end of the V-shaped structure and a horizontal plane is 20 degrees.

Preferably, a first convex hull is further arranged on the outer side wall of the second connecting section, and the first convex hull can be used for being in contact with the conductive rubber sleeve.

Preferably, the second connecting section is further provided with a first bump protruding outwards, and the first bump can improve the SI performance of the terminal.

Preferably, the structure of the lower row of sub-terminals is similar to that of the upper row of sub-terminals, and the lower row of sub-terminals includes a third connecting section with a Z-shaped structure and a fourth connecting section with a V-shaped structure which are integrally formed.

Preferably, the outer side wall of the third connecting section is provided with a second lug and a third lug.

Preferably, the bent portion of the third connecting section is not provided with a second groove.

Preferably, a second convex hull is arranged on the third connecting section and close to the second groove.

Preferably, the angle between the second contact end of the fourth connecting section and the horizontal plane is 20 degrees.

Preferably, a plurality of contact points for contacting with the ground terminals of the upper row of terminals and the lower row of terminals are arranged on two side walls of the conductive rubber sleeve.

Preferably, the conductive rubber sleeve is further provided with a plurality of connecting posts for connecting with the connector body.

Preferably, the connector body is made of high-temperature-resistant plastic.

Preferably, the connector body is internally provided with a plurality of clamping grooves for mounting the upper row of terminals and the lower row of terminals, and the connector body is further provided with a plurality of material drawing holes.

The utility model has the advantages that:

1. the utility model has simple structure and wide application range, can horizontally insert cards and meet the requirement of 20-degree card insertion, and can reduce the application space especially when the cards are inserted at 20 degrees;

2. the terminal of the utility model is formed by stamping and bending high-conductivity copper material, the thickness is less than 0.25mm, the production efficiency is further improved by stamping, and meanwhile, the rear end of the terminal is controlled below 0.25mm, so that the material is saved, and the application range of the terminal is increased;

3. the utility model is provided with the groove in the middle of the bending part of the upper row of terminals, which not only facilitates the bending of the terminals, but also reduces the internal stress of the terminals, and can also improve the SI performance, such as impedance, insertion loss and return loss;

4. the utility model can be used to keep good contact with the conductive rubber sleeve by arranging the convex hull on the inner side of the terminal, and in addition, the SI performance can be effectively improved by arranging the convex hull on the outer side of the terminal, and the problem of tin climbing can be prevented;

5. the utility model discloses a set up joint portion outside the terminal to guarantee the stability of being connected of terminal and connector body;

6. the utility model utilizes the conductive rubber sleeve which is connected in a detachable way, can meet the speed of 16Gt/s when being provided with the conductive rubber sleeve, and can not be provided with the conductive rubber sleeve to reduce the cost if only meeting the speed of 8 GT/s; in addition, all the grounding pins are connected together through the conductive rubber sleeve to form a loop, and meanwhile, the signal differential pairs are separated to play a shielding role, so that the mutual crosstalk of the signal pairs is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the connector body of the present invention;

fig. 3 is a schematic structural view of the upper row of terminals and the lower row of terminals of the present invention;

fig. 4 is a schematic structural view of an upper row of terminals according to the present invention;

fig. 5 is a schematic structural view of the lower row of terminals of the present invention;

fig. 6 is a schematic structural view of the conductive rubber sleeve of the present invention;

fig. 7 is a schematic structural view of the conductive rubber sleeve of the present invention connected to the upper row terminal and the lower row terminal;

in the figure, 1-connector body, 2-upper row terminal, 3-lower row terminal, 4-conductive rubber sleeve and 5-contact end;

11-clamping groove, 12-digging material hole;

21-upper row sub-terminals, 23-first connecting section, 24-second connecting section, 25-first groove, 26-first clamping part, 27-first contact end, 28-first convex hull and 29-first convex block;

31-lower row sub-terminals, 32-third connecting section, 33-fourth connecting section, 34-second bump, 35-third bump, 36-second groove, 37-second convex hull, 38-second contact end;

41-contact point, 42-connecting column.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

the embodiment provides a novel connector, the connector of the embodiment is a PCIe 4.0RA connector, as shown in fig. 1, the connector includes a connector body 1, and a plurality of sets of upper row terminals 2 and lower row terminals 3 that are arranged in the connector body 1 and are mutually matched; and part of the upper row of terminals 2 and the lower row of terminals 3 are also connected with a conductive rubber sleeve 4, the conductive rubber sleeve 4 connects the ground terminals of the upper row of terminals 2 and the lower row of terminals 3 together to form a loop, and simultaneously separates the signal differential pairs to play a role of shielding, so that crosstalk between the signal pairs is reduced, and the conductive rubber sleeve 4 is clamped in the connector body 1 in a detachable connection mode. In the embodiment, the rate of 16Gt/s can be satisfied when the conductive rubber sleeve 4 is installed, and the conductive rubber sleeve 4 can be not installed if only the rate of 8GT/s is satisfied, so that the cost is reduced.

As shown in fig. 2, the connector body 1 according to the present embodiment is made of high temperature resistant plastic. And a plurality of draw-in grooves 11 for installing the upper row terminals 2 and the lower row terminals 3 are arranged in the connector body 1, a plurality of material drawing holes 12 are further formed in the connector body 11, and the manufacturability can be optimized and the problem of molding warpage can be reduced through the material drawing holes 12.

As shown in fig. 3, as a preferred embodiment, an included angle between the contact end 5 of the upper row terminal 2 and the lower row terminal 3 and the horizontal direction is 20 degrees, and an included angle between the contact end 5 of the upper row terminal 2 and the lower row terminal 3 is 40 degrees, so that the requirement of horizontal card insertion and 20-degree card insertion can be met, the card insertion space can be saved, and the damage to the terminals during card insertion can be avoided. In this embodiment, the upper row terminal 2 and the lower row terminal 3 are both formed by stamping and bending high-conductivity copper materials. And the thickness of the upper row terminal 2 and the lower row terminal 3 is less than 0.25 mm.

Preferably, as shown in fig. 3, each of the upper row terminals 2 includes 2 upper row terminals 21 having the same structure, and each of the lower row terminals 3 includes 2 lower row terminals 31 having the same structure.

As shown in fig. 4, the upper row of sub-terminals 21 preferably includes an upper row of terminal main bodies, the upper row of terminal main bodies includes a first connecting section 23 and a second connecting section 24 which are integrally formed, the first connecting section 23 and the second connecting section 24 are both in an irregular Z-shaped structure, and the second connecting sections 24 of the two upper row of sub-terminals 21 form a Y-shaped structure. And a first groove 25 is formed on the connecting part of the first connecting section 23 and the second connecting section 24, so that the terminal can be conveniently bent through the first groove 25, the internal stress of the terminal can be reduced, and the SI performance can be improved.

Preferably, the first connecting section 23 is provided with a first clamping portion 26, and the first clamping portion 26 includes a protrusion protruding outward and an arc-shaped groove on the protrusion. A first contact end 27 is arranged at one end of the first connecting section 23 far away from the second connecting section 24, the first contact end 27 is in a V-shaped structure, and an included angle between the first contact end 27 of the V-shaped structure and the horizontal plane is 20 degrees.

Preferably, the outer side wall of the second connecting section 24 is further provided with a first convex hull 28, and the first convex hull 28 can be used for contacting with the conductive rubber sleeve 4. A first bump 29 protruding outward is further disposed on the second connecting section 24, and SI performance of the terminal can be improved by the first bump 29.

As shown in fig. 5, the structure of the lower terminal 31 is similar to that of the upper terminal 21, and the lower terminal 31 includes a third connecting section 32 having a Z-shaped structure and a fourth connecting section 33 having a V-shaped structure. The outer side wall of the third connecting section 32 is provided with a second lug 34 and a third lug 35. The bent portion of the third connecting section 32 is further provided with a second groove 36. A second convex hull 37 is arranged on the third connecting section 32 near the second groove 36. The angle between the second contact end 38 of the fourth connecting section 33 and the horizontal plane is 20 degrees.

As shown in fig. 6 and 7, the two side walls of the conductive rubber sleeve 4 are provided with a plurality of contact points 41 for contacting with the ground terminals of the upper row terminal 2 and the lower row terminal 3, and in this embodiment, the number of the contact points 41 is 33. The conductive rubber sleeve 4 is further provided with a plurality of connecting posts 42 for being connected with the connector body 1. In the embodiment, the conductive rubber sleeve 4 is detachably connected with the connector body 1, the rate of 16Gt/s can be met when the conductive rubber sleeve 4 is installed, and the conductive rubber sleeve 4 is not installed to reduce the cost if the rate of 8GT/s is only needed to be met; this embodiment connects all earth pins together through electrically conductive gum cover 4 and forms the return circuit, separates simultaneously between the differential pair of signal and plays the effect of shielding, reduces the mutual crosstalk of signal pair.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims (10)

1. A novel connector comprises a connector body, and a plurality of groups of upper-row terminals and lower-row terminals which are matched with each other and are arranged in the connector body;

the method is characterized in that: part of the upper row of terminals and the lower row of terminals are also connected with a conductive rubber sleeve, the conductive rubber sleeve connects the grounding terminals of the upper row of terminals and the lower row of terminals together to form a loop, and simultaneously separates signal differential pairs to play a role in shielding and reduce crosstalk between the signal pairs, and the conductive rubber sleeve is clamped in the connector body;

the included angle between the contact ends of the upper row of terminals and the lower row of terminals and the horizontal direction is 20 degrees, and the included angle between the contact ends of the upper row of terminals and the lower row of terminals is 40 degrees.

2. The novel connector of claim 1, wherein: the upper row of terminals and the lower row of terminals are formed by stamping, bending and molding high-conductivity copper materials;

and the thickness of the upper row of terminals and the lower row of terminals is less than 0.25 mm.

3. The novel connector of claim 1, wherein: each group of upper row terminals comprises 2 upper row terminals with the same structure, and each group of lower row terminals comprises 2 lower row terminals with the same structure.

4. The novel connector of claim 3, wherein: the last row of sub-terminal include last row of sub-terminal main part, last row of sub-terminal main part include integrated into one piece's first linkage segment and second linkage segment, first linkage segment and second linkage segment be anomalous Z shape structure to the second linkage segment of two last row of sub-terminals forms Y type structure.

5. The novel connector of claim 4, wherein: a first groove is formed in the connecting part of the first connecting section and the second connecting section;

the first connecting section is provided with a first clamping part, and the first clamping part comprises a bulge protruding outwards and an arc-shaped groove arranged on the bulge;

one end of the first connecting section, which is far away from the second connecting section, is provided with a first contact end, the first contact end is of a V-shaped structure, and an included angle between the first contact end of the V-shaped structure and the horizontal plane is 20 degrees.

6. The novel connector of claim 4, wherein: the outer side wall of the second connecting section is also provided with a first convex hull which can be used for contacting with the conductive rubber sleeve;

the second connecting section is also provided with a first lug protruding outwards.

7. The novel connector of claim 3, wherein: the structure of the lower row of the sub-terminals is similar to that of the upper row of the sub-terminals, and the lower row of the sub-terminals comprises a Z-shaped structure third connecting section and a V-shaped structure fourth connecting section which are integrally formed.

8. The novel connector of claim 7, wherein: the outer side wall of the third connecting section is provided with a second lug and a third lug;

a second groove is not formed in the bent part of the third connecting section;

a second convex hull is arranged on the third connecting section and close to the second groove;

and the included angle between the second contact end of the fourth connecting section and the horizontal plane is 20 degrees.

9. The novel connector of claim 1, wherein: a plurality of contact points for contacting with the grounding terminals of the upper row of terminals and the lower row of terminals are arranged on two side walls of the conductive rubber sleeve;

the conductive rubber sleeve is also provided with a plurality of connecting columns for connecting with the connector body.

10. The novel connector of claim 1, wherein: the connector body is made of high-temperature-resistant plastic;

and a plurality of clamping grooves used for installing the upper row terminals and the lower row terminals are formed in the connector body, and a plurality of material drawing holes are formed in the connector body.

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