CN202434734U

CN202434734U - High frequency connector capable of reducing high frequency loss and connection terminal of high frequency connector

Info

Publication number: CN202434734U
Application number: CN2011202810414U
Authority: CN
Inventors: 周妘珊; 刘永章
Original assignee: HONG KONG AMPHENOL (ASIA EAST) CO Ltd
Current assignee: HONG KONG AMPHENOL (ASIA EAST) CO Ltd; Amphenol East Asia Ltd
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-09-12
Anticipated expiration: 2021-08-04

Abstract

The utility model provides a high frequency connector capable of reducing high frequency loss and connection terminals of the high frequency connector. The high frequency connector includes a shell and a plurality of connection terminals. A side face of the shell is provided with a slot and a plurality of through holes. The through holes penetrate through two corresponding side faces of the shell. The connection terminals can be inserted and fixed into the through holes respectively. Each of the connection terminals is provided with an elastic part, an embedding part and a welding part. One end of the elastic part is close to one side face of the shell. And section parts are in a bending shape and extend into the slot. The other end of the elastic part connects with one end of the embedding part. Two side faces of the embedding part are provided with at least one arc-shaped flange respectively to embed into the inner wall of the shell corresponding to the through holes. The other end of the embedding part connects with one end of the welding part. The other end of the welding part exposes outside the other side face of the shell. According to the utility model, the arc-shaped flange displaces a prior sharp-angled structure. Thus, high frequency loss can be reduced effectively.

Description

Can reduce the high frequency connectors and the splicing ear thereof of high frequency loss

Technical field

The utility model is about high frequency connectors, refers to a kind of aspect that changes splicing ear especially, can reduce the high frequency connectors of high frequency loss.

Background technology

Early stage computer generally adopts PCI (Peripheral Component Interconnect) specification, as bus (bus) standard of personal computer or server, yet; Along with the microcomputer industry progresses greatly, and the user is for the height requirement of transmission rate, initial PCI specification bus; Go through repeatedly deduce after, develop in regular turn and PCI-X and PCI Express plurality of specifications such as (abbreviation PCI-E), wherein PCI-E has continued to use PCI programming concept and communication standard; Make to be that the operating system that PCI designed can start PCI-E equipment under the situation of not revising code, secondly; PCI-E has transmission rate faster; And support hot-swappable and heat exchange characteristics, and the power taking power up to 75W can be provided, significantly improve the convenience of dealer on planning product (as: high-order display card); Make the bus of PCI-E specification, be close to the standard that becomes pc board and be equipped with.

Though the transmission rate of PCI-E is far above PCI; But the dealer still makes great efforts to promote the transmission rate of PCI-E; And develop PCI-E1.0, PCI-E2.0, and nearest PCI-E3.0 specification, the transfer rate of PCI-E3.0 specification rises to 8GHz/s at present; And can backward compatible PCI-E1.0, the PCI-E2.0 specification, and support 2.5GHz, 5GHz signaling mechanism.Yet; The bus of PCI-E3.0 specification is when having high-speed transfer speed, and it prolongs with original structural design aspect, but can cause the loss of high-frequency signal in transmission course; Influenced the transmission correctness of high-frequency signal; For clearly disclosing foregoing problems, only with regard to current bus structures, explain as follows now:

Seeing also Fig. 1 and shown in Figure 2, is to be a PCI-E bus 1, and this PCI-E bus 1 comprises a housing 11 and many transmission terminals 13; This housing 11 is to be plastic material, and the one of which side is provided with a slot 110, and respectively this transmission terminal 13 can plug and be fixed in this housing 11; Wherein, This transmission terminal 13 is that positively inlay card is to this housing 11, and its stage casing partly can be designed to wedge angle projection 131, with the sharp place through wedge angle projection 131; And can puncture into the internal face of this housing 11, break away from these housings 11 to avoid this transmission terminal 13.Because the transmission rate of PCI-E1.0, PCI-E2.0 is slow (compared to PCI-E3.0), therefore, aforesaid design (being wedge angle projection 131) does not derive serious transmission problem as yet; Yet aforesaid design is when being applied to PCI-E3.0, because of the transmission rate of PCI-E3.0 heightens; Anticipate promptly, its transmission information is high-frequency signal mostly, and the wedge angle projection 131 that right angle or acute angle broken line are produced; Be to make high-frequency signal produce the problem of externally launching or intercoupling, cause the problem of high frequency loss, so; Wedge angle projection 131 designs of original transmission terminal 13; Just can form a big shortcoming on the PCI-E3.0 being applied to, make the laser propagation effect of the bus of PCI-E3.0 specification, not as expection good.

In addition, see also Fig. 1 and shown in Figure 2 again, the latter end part of known transmission terminal 13 is normally in order to be soldered on the circuit board; Because it is less that the welding hole on the circuit board all designs, therefore, be the welding pore size of ability mating circuit plate; The latter end of transmission terminal 13 width W 1 partly is also comparatively narrow and small, conveniently being inserted in the welding hole, and accomplishes welding procedure smoothly; Only, compared to the stage casing width W 2 partly of transmission terminal 13, width W 1, the W2 change between the two of the latter end of transmission terminal 13 and stage casing is too big; Make that the handing-over high frequency loss partly of aforementioned width W 1, W2 is bigger, make the transmission correctness of high-frequency signal had a strong impact on, make that the production yield of PCI-E bus 1 is not good; This kind situation will cause dealer's production cost high, and can't promptly capture relevant market.Therefore, how to be directed against the global design of known bus or relevant high frequency connectors, to improve,, promptly become the important topic that at present relevant dealer desires most ardently solution can solve foregoing problems.

The utility model content

In view of this; The creator is through the permanent research and experiment of making great efforts, and development and Design goes out a kind of high frequency connectors and splicing ear thereof that can reduce high frequency loss of the utility model finally, in the hope of by the utility model; And can effectively solve foregoing problems, to improve the competitiveness of dealer on market.

One purpose of the utility model provides a kind of high frequency connectors and splicing ear thereof that can reduce high frequency loss, and these high frequency connectors comprise a housing and a plurality of splicing ear; Wherein one first side of this housing is provided with a slot, and this slot is to be strip, for the interface unit (as: display card) of pegging graft; The position of contiguous this slot in first side of this housing, along this slot vertically be provided with a plurality of through holes in regular turn, respectively this through hole is to be run through this housing and extended to one second side of this housing by this first side; This second side is corresponding with this first side, and in addition, respectively this splicing ear is respectively equipped with an elastic portion, an embedding part and a weld part; And respectively this splicing ear can be plugged and be fixed to respectively respectively in this through hole, and respectively an end of this elastic portion is first side of contiguous this housing, and its stage casing part is to be bending and to extend in this slot; With when this interface unit is plugged to this slot, respectively this elastic portion can touch the electric terminal of this interface unit, again; Respectively the other end of this elastic portion is to be connected with an end of this embedding part respectively respectively; Respectively the two sides of this embedding part are respectively equipped with at least one curved flanges, with can inlay card to this housing corresponding to the inwall of this through hole respectively, respectively the other end of this embedding part is to be connected with an end of this weld part respectively respectively; Respectively the other end of this weld part is to expose to second side of this housing; So, by the design of curved flanges, just can significantly reduce the situation of high frequency loss.

Another purpose of the utility model is the width of an end of the weld part of this splicing ear, is the width less than the other end of this embedding part; But greater than its stage casing width partly, to form the convergent shape of stepped or taper, so that the width of this weld part can not dwindle suddenly; And with mode decrescence; Dwindle gradually, make high-frequency signal when being sent to embedding part and weld part by elastic portion in regular turn, can be because of the latter end of splicing ear (being weld part) reduced width significantly suddenly partly; And have influence on the correctness of high-frequency signal in transmission, effectively improve the production yield of product.

A purpose again of the utility model is that second side of this housing still is provided with a projection, to avoid under the situation that scolding tin does not solidify fully; This circuit board is because of directly touching this housing, and causes scolding tin to touch two adjacent splicing ears simultaneously, situation about being short-circuited; In addition; The height of this projection is below 1 millimeter, reducing the impedance of air, and then improves the high frequency characteristics of the high frequency connectors of the utility model.

The utility model provides a kind of splicing ear that can reduce high frequency loss, comprising:

One elastic portion, a leading portion of this elastic portion extends to its other end by the one of which end with being flat, and the other end of the leading portion of this elastic portion is connected with an end of a back segment of this elastic portion, and the back segment of this elastic portion extends to its other end by the one of which end with being bending;

One embedding part is flat, and the one of which end is connected with the other end of the back segment of this elastic portion, and its two respective side outwards convexes with at least one curved flanges respectively; And

One weld part; One end of one leading portion of this weld part is connected with the other end of this embedding part; The other end of the leading portion of this weld part is connected with an end of a back segment of this weld part, and the width of the leading portion of this weld part is less than the width of the other end of this embedding part, and greater than the width of the back segment of this weld part; Make the width of this weld part to extend to back segment, and form a convergent shape by its leading portion.

The utility model also provides a kind of high frequency connectors that can reduce high frequency loss, comprising:

One housing; One of which first side is provided with a slot; And the position of contiguous this slot in its first side is provided with a plurality of through holes, and respectively this through hole runs through this housing by this first side and extends to one second side of this housing; This second side is corresponding with this first side, and respectively this through hole is connected with this slot; And

A plurality of splicing ears; Respectively this splicing ear is respectively equipped with an elastic portion, an embedding part and a weld part, and respectively this splicing ear is plugged and be fixed to respectively respectively in this through hole, respectively first side of contiguous this housing of an end of this elastic portion; Its stage casing part is bending and extends in this slot; Respectively the other end of this elastic portion is connected with an end of this embedding part respectively respectively, and respectively the two sides of this embedding part outwards convex with at least one curved flanges respectively, and inlay card to this housing is corresponding to the inwall of this through hole respectively; Respectively the other end of this embedding part is connected with an end of this weld part respectively respectively; Respectively the other end of this weld part exposes to second side of this housing, and respectively the width of an end of this weld part is less than the width of the other end of this embedding part, and greater than the stage casing width partly of this weld part respectively; Make that respectively the width of this weld part can extend to the other end by the one of which end, and form a convergent shape.

The beneficial effect of the utility model is: it can significantly reduce high frequency loss, effectively improves the production yield of product, improves the high frequency characteristics of high frequency connectors.

Description of drawings

For making the auditor do further understanding and understanding to the utility model purpose, technical characterictic and effect thereof, below enumerate the embodiment conjunction with figs., specify as follows, wherein:

Fig. 1 is the part signal explosive view of known PCI-E bus;

Fig. 2 is the partial enlarged drawing of known splicing ear;

Fig. 3 is the sketch map of the high frequency connectors of the utility model;

Fig. 4 is the part sectioned view of the high frequency connectors of the utility model;

Fig. 5 is the stereogram of the splicing ear of the utility model;

Fig. 6 is the partial enlarged drawing of the splicing ear of the utility model;

Fig. 7 is the feed-in loss figure of the utility model;

Fig. 8 is the reflection loss figure of the utility model; And

Fig. 9 is the near-end crosstalk figure of the utility model.

Embodiment

General speech, high-frequency signal in the process of transmission, because of its transmission rate higher; So very easily receive the influence of external environment or transmission medium, and cause transmission quality not good, so; The creator and to the characteristic of high-frequency signal and associated transport medium, studies the back and finds in the research and development field of long-term work at connector; On the project organization of known splicing ear, can cause harmful effect to transmitting high-frequency signal in fact, therefore; The creator is that special structure to known splicing ear improves, and the splicing ear after the feasible improvement can possess the better quality that keeps high-frequency transmission.

The utility model is a kind of high frequency connectors and splicing ear thereof that can reduce high frequency loss, in a preferred embodiment of the utility model, sees also Fig. 3 and shown in Figure 4; These high frequency connectors 2 are the bus patterns for the PCI-E3.0 specification, comprise a housing 21 and a plurality of splicing ear 23, and wherein one first side A of this housing 21 is provided with a slot 210; This slot 210 is to be strip; Electric terminal (not shown) for an interface unit (as: display card) can be plugged in this slot 210, to fix and to be connected on these high frequency connectors 2, again; The position of contiguous this slot 210 of the first side A of this housing 21; Along this slot 210 vertically be provided with a plurality of through holes 212 in regular turn, respectively this through hole 212 is to run through this housing 21 by this first side A and extend to one second side B of this housing 21, this second side B is corresponding with this first side A; In addition, this through hole 212 still is connected with this slot 210.Only; In other embodiment of the utility model, the dealer is when behind the technical characterictic of grasping the utility model, being applied on the housing of other pattern; Therefore; The overall technology characteristic that the utility model disclosed is non-only for the bus pattern due to the PCI-E3.0 specification, and on the high frequency connectors that can be applied to be correlated with, the explanation of the preceding embodiment of chatting and accompanying drawing are merely and supply common people can promptly understand the technical characterictic that the utility model is addressed.

In addition; See also shown in Figure 4 again; Respectively this splicing ear 23 can be plugged and be fixed to respectively respectively in this through hole 212, and to form high frequency connectors 2, wherein respectively this splicing ear 23 is respectively equipped with an elastic portion 231, an embedding part 233 and a weld part 235; Be convenient explanation, after to chat embodiment be example with splicing ear 23 wherein only.See also shown in Figure 5; One leading portion 231A of this elastic portion 231 extends to its other end by the one of which end with being flat; The other end of the leading portion 231A of this elastic portion 231 is to be connected with the end of a back segment 231B of this elastic portion 231, and the back segment 231B of this elastic portion 231 extends to its other end by the one of which end with being bending, makes when this elastic portion 231 receives external force pressure; The back segment 231B of this elastic portion 231 can produce deformation, and has a reactivation power.In addition, this embedding part 233 is to be flat, and the one of which end is to be connected with the other end of the back segment 231B of this elastic portion 231; Its two respective side outwards convexes with at least one curved flanges 234 (as shown in Figure 6) respectively; And this embedding part 233 be leading portion 231A position with this elastic portion 231 on same axis T, only, in other embodiment of the utility model; The dealer also can be because of Different products designs, and the leading portion 231A that makes this embedding part 233 and this elastic portion 231 not the position on same axis T.

Hold the above; See also Fig. 4 and shown in Figure 5 again; Plugged to the state of this through hole 212 at this splicing ear 23, an end of this elastic portion 231 can be close to the first side A of this housing 21, and the stage casing part of this elastic portion 231 (i.e. the back segment 231B of this elastic portion 231) then is bending and extends in this slot 210; With when this interface unit is plugged to this slot 210; This elastic portion 231 can touch the electric terminal of this interface unit, is electrically connected to form with this interface unit, and can transmits signal each other.Again; The other end of this elastic portion 231 is connected with an end of this embedding part 233, and the lines of set curved flanges 234 are to be circular-arc on this embedding part 233, and do not have the acute angle characteristic; So can avoid high-frequency signal to produce the outwards problem of emission; In addition, because this housing 21 is to be plastic material, and has elasticity slightly; And the aperture of this through hole 212 is to be slightly less than the width of this splicing ear 23 corresponding to curved flanges 234; So this splicing ear 23 can inlay card to this housing 21 corresponding to the inwall of this through hole 212 respectively, and respectively the inwall of this through hole 212 can form a packing effect to this splicing ear 23, make this splicing ear 23 can't break away from this housing 21 easily.This special one carry be; In the aforesaid explanation, when independent explanation splicing ear 23, be that each position with splicing ear 23 is to be divided into front and rear sections; Can know the architectural feature of exposing splicing ear 23; But when the combining of explanation splicing

ear

23 and 21 of housings, then be that each position with splicing ear 23 is regarded as an overall description, can know the characteristic that combines of exposing

splicing ear

23 and 21 of housings.

In addition, see also shown in Figure 5ly again, the end of a leading portion 235A of this weld part 235 is to be connected with the other end of this embedding part 233; And the leading portion 235A of this weld part 235 extends to its other end by the one of which end with being bending, and its overbending direction of stating is opposite with the overbending direction of the back segment 231B of this elastic portion 231, and meaning promptly; The overbending direction of the back segment 231B of this elastic portion 231 is towards axis T; The overbending direction of the leading portion 235A of this weld part 235 is towards the direction away from axis T, so, and when this splicing ear 23 is plugged to housing 21 interior (as shown in Figure 4); Respectively this weld part 235 can be adjacent too not near; Avoiding influencing the quality or the convenience of welding, but in other embodiment of the utility model, the dealer also can make the leading portion 235A of this weld part 235 not be bending.Again; The other end of the leading portion 235A of this weld part 235 is to be connected with the end of a back segment 235B of this weld part 235; The width of the leading portion 235A of this weld part 235 is the width less than the other end of this embedding part 233; And the width greater than the back segment 235B of this weld part 235 makes the width of this weld part 235 to extend to back segment 235B by its leading portion 235A, and forms a convergent shape.

For clearly demonstrating aforesaid architectural feature, see also Fig. 4 and shown in Figure 6 again, the other end of this embedding part 233 is to be connected with an end of this weld part 235; The other end of this weld part 235 can expose to the second side B of this housing 21, and wherein width W 3 meetings of the other end of this embedding part 233 are greater than the width W 4 (being the leading portion 235A of the weld part 235 of Fig. 5) of an end of this weld part 235, again; 4 of the width W of one end of this weld part 235 can make the weld part 235 of this splicing ear 23 can form stepped tapered shape greater than its stage casing width W 5 (being the back segment 235B of the weld part 235 of Fig. 5) partly, and meaning promptly; The embedding part 233 of this splicing ear 23 is gradient type with width W 3, W4, the W5 of weld part 235, to reduce the loss of this splicing ear 23 when transmitting high-frequency signal, only; In other embodiment of the utility model, the dealer only can adopt stair-stepping design, also can adopt the convergent shape of taper; Meaning promptly; This embedding part 233 can form taper with width W 3, W4, the W5 of weld part 235, and reaches the effect of the minimizing high frequency loss of the utility model, in addition; In other embodiment of the utility model; The dealer also can in the stage casing of weld part 235 partly design the stepped of a plurality of convergents, but not it is stepped only to be limited to of this case accompanying drawing.

In addition, see also shown in Figure 4ly again, the second side B of this housing 21 still is provided with a projection 214; Make the weld part 235 of staff with this splicing ear 23; When being soldered on the circuit board, this projection 214 can be against to circuit board, to avoid under the situation that scolding tin does not solidify fully; The staff is improper because of the application of force; Cause this circuit board directly to touch the second side B of this housing 21, cause scolding tin two splicing ears 23 adjacent, make these high frequency connectors 2 because of the short circuit misoperation because of extruding touches simultaneously.In addition, general speech is when the second side B of housing 21 and the distance between circuit board are nearer; Because of its space to each other less; So can reduce the impedance influences that receives air, and then promote the high frequency characteristics of these high frequency connectors 2, therefore; The height of the projection 214 of the utility model is preferably below 1 millimeter (mm), with the standard of ability accord with PCI-E3.0.

For the high frequency connectors 2 (as shown in Figure 3) that confirm the utility model can accord with PCI-E3.0 standard, see also Fig. 7 to shown in Figure 9, wherein Fig. 7 is feed-in loss figure (Insertion Loss Chart), it is qualified to be more than its normal line I1; Fig. 8 is reflection loss figure (Return Loss Chart), and it is qualified to be below its normal line R1; Fig. 9 is near-end crosstalk figure (Near-end Crosstalk Chart), and it is qualified to be below its normal line N1; Hold, the high frequency connectors 2 of the utility model are after test, and the equal really position of its test data (like I2, R2, the N2 of Fig. 7-Fig. 9) is in acceptability limit; Anticipate promptly, the improvement of the utility model partly can reach the effect of expection really, so; See also Fig. 3 and shown in Figure 4 again, because the embedding part 233 of the splicing ear 23 of the utility model is to adopt 234 designs of circular-arc curved flanges; And weld part 235 also has the design of convergent shape; So the high frequency connectors 2 of the utility model can effectively reduce the situation of high frequency loss when transmitting high-frequency signal, to improve the dealer in the competitiveness in high frequency connectors 2 markets.

Press, the above only is the preferred embodiment of the utility model; Only, the interest field that the utility model is advocated is not limited thereto; Everyly be familiar with this technological personage; According to the technology contents that the utility model disclosed, can think easily and equivalence change, all should belong to the claim protection category that does not break away from the utility model.

Claims

1. the splicing ear that can reduce high frequency loss is characterized in that, comprising:

2. the splicing ear that can reduce high frequency loss as claimed in claim 1 is characterized in that, the leading portion of this weld part extends to its other end by the one of which end with being bending, and the overbending direction of the back segment of its overbending direction and this elastic portion is opposite.

3. the splicing ear that can reduce high frequency loss as claimed in claim 2 is characterized in that, wherein the preceding section of this embedding part and this elastic portion is on same axis.

4. the splicing ear that can reduce high frequency loss as claimed in claim 3 is characterized in that, wherein this convergent shape is a stepped tapered shape.

5. the splicing ear that can reduce high frequency loss as claimed in claim 3 is characterized in that, wherein this convergent shape is a taper tapered shape.

6. the high frequency connectors that can reduce high frequency loss is characterized in that, comprising:

7. the high frequency connectors that can reduce high frequency loss as claimed in claim 6 is characterized in that, wherein respectively an end of this weld part is bending, and the overbending direction of the stage casing part of its overbending direction and this elastic portion is opposite.

8. the high frequency connectors that can reduce high frequency loss as claimed in claim 7 is characterized in that, wherein second side of this housing still is convexly equipped with at least one projection.

9. the high frequency connectors that can reduce high frequency loss as claimed in claim 8 is characterized in that, wherein this convergent shape is a stepped tapered shape.

10. the high frequency connectors that can reduce high frequency loss as claimed in claim 8 is characterized in that, wherein this convergent shape is a taper tapered shape.

11., it is characterized in that wherein the height of this projection is to be below 1 millimeter like claim 9 or the 10 described high frequency connectors that can reduce high frequency loss.

12. the high frequency connectors that can reduce high frequency loss as claimed in claim 11 is characterized in that, wherein these through holes are vertically arranging in regular turn along this slot.