CN203521688U - Pin structure improving resistance value by utilizing hollow groove - Google Patents
Pin structure improving resistance value by utilizing hollow groove Download PDFInfo
- Publication number
- CN203521688U CN203521688U CN201320603275.5U CN201320603275U CN203521688U CN 203521688 U CN203521688 U CN 203521688U CN 201320603275 U CN201320603275 U CN 201320603275U CN 203521688 U CN203521688 U CN 203521688U
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- pin structure
- metal terminal
- terminal
- hollow groove
- base frame
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Abstract
The utility model provides a pin structure improving a resistance value by utilizing hollow grooves. The pin structure is used to be connected with a circuit board and expansion equipment. The pin structure comprises multiple metal terminals and a fixing seat body. Two ends of each metal terminal can respectively and electrically connected to a connecting port of the circuit board and a connecting port of the expansion equipment to perform data transmission; the fixing seat body is made of an insulating material, is fixedly disposed at middle section parts of the metal terminals and allows predetermined gaps between the metal terminals to be kept; positions, corresponding to the metal terminals, at two ends of the fixing seat body are provided with hollow grooves, so that the middle section parts of the metal terminals can be contacted with outside air; and the characteristic of low dielectric coefficient of the air is utilized to improve the resistance value of the pin structure, and thus the pin structure conforms to the USB 3.0 specification. So, through the design of the hollow grooves, the resistance value of the pin structure can also be kept within the resistance scope of the USB 3.0 specification in the case that an overall occupied space of the pin structure is reduced.
Description
Technical field
The utility model is a kind of pin structure of utilizing hollow groove to promote resistance value, espespecially utilize a fixed base frame to locate branched metal terminal, and on this fixed base frame, corresponding to the position of the center section part of this metal terminal respectively, offer respectively the pin structure of a hollow groove, because seeing through this hollow groove, described metal terminal touches extraneous air, and promote its resistance value, therefore can meet the standard of USB3.0.
Background technology
Along with the high speed development of microelectric technique, current various electronic installations have become one of indispensable important tool in people's life.General speech, now in the circuit board of all kinds of electronic devices, mostly be provided with the stitch (claiming again board to board connector) of expansion, linkage function, the bridge of usining as electric power, transfer of data between various boards or external equipment, yet, along with the computing of processor and the lifting of signal transmission speed, for electrical characteristic and the also corresponding increase of performance requirement of stitch, the beginning can meet the demand in market.
Refer to shown in Fig. 1, it is a kind of schematic diagram of pin structure 1, this pin structure 1 is to consist of branched metal terminal 11, and described metal terminal 11 also sees through an insulating base frame 10 and is combined into one, one end of described metal terminal 11 can be electrically connected to a plurality of electric terminals 120 on a circuit board 12 (as: motherboard), its other end can be (not shown in the figures with an extension facility, can be network card, display card etc.) on a gang socket 13 plug, make this circuit board 12 can see through this pin structure 1, transmit signal and give this extension facility.Yet, along with the universalness of all kinds of action electronic devices (as: mobile computer, flat computer, intelligent mobile phone etc.) in recent years, " compact " become the main trend of consumption market at present, although current microelectric technique can realize the wiring topology of densification, multiple stratification and slimming on printed circuit board (PCB), yet, as previously mentioned, therefore and be not easy to reduce its volume because the pin structure 1 on this circuit board 12 also must be taken into account electrical specification and impedance operator.
With universal serial bus the most general in transfer of data (Universal Serial Bus, hereinafter to be referred as USB) interface is example, the transmission speed of USB2.0 was approximately 60MB per second in the past, if but use the USB3.0 specification of up-to-date release, speed can be up to 500MB each second, be almost ten times of USB2.0, its following market potential is not sayed and can be explained.Yet, because USB3.0 involves high-frequency signal in signal transmission, therefore all kinds of media for signal transmission also have specific restriction, the stitch that the utility model wish of take is inquired into is example, in order to meet the transmission specification of USB3.0, except every metal terminal must be able to bear the current capacity of 1.5 amperes, its resistance value also must be controlled between 78～105 ohm, and the beginning can be guaranteed correct and stable in transfer of data.General speech, pin structure 1 as shown in Figure 1, the cross sectional configurations of its metal terminal 11 is the rectangle of 0.4 millimeter of the length of side, and the spacing of 11 of adjacent metal terminals is 2.0 millimeters, electric current due to 1.5 amperes of the necessary loads of this metal terminal 11, therefore the configuration of this metal terminal size also cannot (be found after the actual test of creator by reduction, if the cross sectional configurations of metal terminal 11 is reduced to 0.3 millimeter, cannot the load electric current of 1.5 amperes), meaning, if reduce the shared overall space of this pin structure 1, only can be set about by the spacing of 11 of described metal terminals.
According to the standard of USB3.0, the resistance value of metal terminal must be between 78～105 ohm, if rashly change the spacing between described metal terminal, will inevitably affect its impedance operator in transfer of data, therefore, how can be in the situation that do not change the configuration of metal terminal, spacing between reduction metal terminal, and take into account its resistance value simultaneously, make it successfully for transmitting the signal of USB3.0 specification, become the utility model and to desire most ardently the important topic of solution at this.
Utility model content
Because taking up room of existing stitch is difficult to reduction, cause dealer to be difficult to carry out for electronic installation the problem of lightening design, creator is by feat of practical experience for many years, and after research and test repeatedly, finally design a kind of pin structure of utilizing hollow groove to promote resistance value of the present utility model, the phase can solve many shortcoming parts of existing stitch.
An object of the present utility model, be to provide a kind of pin structure (internal header) of utilizing hollow groove to promote resistance value, this pin structure is applied in an electronic installation (as: personal computer), in this electronic installation, be provided with a circuit board (as: motherboard) and an extension facility (as: network card, display card), on this circuit board and extension facility, be respectively equipped with a connectivity port (as: socket, electric terminal); This pin structure comprises branched metal terminal and a fixed base frame, the configuration at the two ends of described metal terminal respectively with this circuit board and extension facility on connectivity port match, being electrically connected mutually with this connectivity port respectively, make between this circuit board and extension facility and can carry out transfer of data; This fixed base frame is to consist of insulating material, and be fixedly arranged on the center section part of described metal terminal, so that described metal terminal is combined into one, and make respectively between this metal terminal, to maintain respectively a predetermined gap, extend respectively inwardly position corresponding to described metal terminal on the both sides of this fixed base frame, to be formed with respectively a hollow groove, make the center section part of described metal terminal can see through described hollow groove, contact extraneous air.So, can promote the resistance value of described metal terminal by low-k (Dielectric Constants) characteristic of air, make it meet the standard of USB3.0.
Wherein, respectively this hollow groove can form respectively at the surface of this fixed base frame a perforate, and the bore of this perforate is less than the degree of depth of this hollow groove.
Wherein, the cross sectional configurations of this hollow groove is a rectangle.
Wherein, described metal terminal can also be subdivided into branched the first terminal and branched the second terminal, described the first terminal is located at the position of a side of contiguous this fixed base frame in parallel to each other, described the second terminal is located at the position of the opposite side of contiguous this fixed base frame in parallel to each other, make a side of the center section part of described the first terminal and the second terminal can be respectively see through respectively this hollow groove and contact to air, its another side can be coated by this fixed base frame.
Wherein, respectively the predetermined gap between this metal terminal is between 1.2～0.8 millimeters.
Wherein, respectively the cross sectional configurations of this metal terminal is the length of side between the rectangle of 0.38～0.42 millimeter.
The beneficial effects of the utility model:
The utility model makes the center section part of described metal terminal can see through described hollow groove, contacts extraneous air, and by the low-k characteristic of air, promotes the resistance value of described metal terminal.
The utility model can be under the condition of configuration that does not change metal terminal and fixed base frame, utilize the design of hollow groove, increase the contact area of metal terminal and air, make this pin structure not only still can bear the current capacity of 1.5 amperes, and take into account in its overall construction intensity and USB3.0 the restriction for resistance value.
The utility model can make the preset space length between described metal terminal be reduced to approximately 1.0 millimeters, is beneficial to the lightening of this electronic installation.
For just your juror can have further understanding and understand know-why of the present utility model, architectural feature and object thereof, hereby for embodiment, coordinate graphicly, be described in detail as follows:
Accompanying drawing explanation
Fig. 1 is existing pin structure schematic diagram;
Fig. 2 is the schematic perspective view of pin structure of the present utility model; And
Fig. 3 is the generalized section of pin structure of the present utility model.
Main element symbol description
[existing]
[the utility model]
Pin structure 2
The first terminal 211
The second terminal 212
Fixed base frame 22
Perforate 221
Predetermined gap D1
Depth D 2
Bore D3
Space D 4
Embodiment
The utility model is a kind of pin structure of utilizing hollow groove to promote resistance value, be can be by the gap between each metal terminal by 2.0mm limit to 1.0mm, to realize the object of the miniaturization of electronic installation.Although had at present the connector that gap is 1.0mm, yet this class connector also cannot meet the characteristic requirements that high-frequency signal transmits, therefore and cannot be applied in the transfer of data of USB3.0 specification, according to the standard of USB3.0, when carrying out transfer of data, stitch also needs to bear the electric current of 1.5 amperes, and its resistance value must be between 78 ohm～105 ohm.
Refer to shown in Fig. 2, it is the first preferred embodiment of the present utility model, this pin structure 2 is applied in an electronic installation, this electronic installation can be even intelligent mobile phone of personal computer, flat computer, and in it, be provided with a circuit board (as: motherboard) and an extension facility (as: display card, network card etc.), on this circuit board and extension facility, be respectively equipped with a connectivity port, for receiving the extraneous data that transmit.At this, special one carry, this connectivity port can be general electric terminal, also can be a gang socket, its configuration as shown in Figure 1, due to the general connectivity port of pin structure 2 of the present utility model shown in can direct applied Fig. 1 (, electric terminal 120 and gang socket 13), thus in Fig. 2, do not draw and indicate separately, and emphasis is focused in pin structure 2.
Refer to shown in Fig. 2 and Fig. 3, this pin structure 2 comprises branched metal terminal 21 and a fixed base frame 22, the configuration at described metal terminal 21 two ends and respectively this connectivity port match, can be electrically connected on described connectivity port, make this circuit board can see through described metal terminal 21, carry out the transmission of data with this extension facility; This fixed base frame 22 is coated on the center section part (as: see through assembled by insertion or injection molding manufacture procedure) of described metal terminal 21, so that described metal terminal 21 can be combined into one, and to each other can interval one predetermined gap D1.In two corresponding side surface of this fixed base frame 22, corresponding to the position of this metal terminal 21 respectively, offer respectively a hollow groove 220, the setting party of this hollow groove 220 is to the setting party with described metal terminal 21 to perpendicular, and its one end can form respectively in the both sides of this fixed base frame 22 perforate 221 of a rectangle, its other end can be communicated to the center section part of described metal terminal 21, makes outside air can direct contact to described metal terminal 21.
Look into, dielectric coefficient (dielectric constant) claim again permittivity, when it is defined as a dielectric medium and is applied in an external electric field, one relative value of the charge inducing number of its generation, according to the computing formula of electric capacity: " electric capacity=(dielectric coefficient * capacity area) ÷ electric capacity spacing " and the formula of impedance " resistance=1 ÷ (2 * π * transmission frequency * electric capacity) " of electric capacity are known, because the dielectric coefficient of air levels off to 1, belong to low-k, therefore the air in this hollow groove 220 will have certain impedance, and make described metal terminal 21 after contacting with air, its resistance value also can rise jointly.
From aforementioned, although the configuration size of this metal terminal 21 cannot be reduced (beginning can be born the electric current of 1.5 amperes), and this fixed base frame 22 is in order to support described metal terminal 21, and also cannot adjust easily, but see through the design of hollow groove 220 of the present utility model, can be under the harsh restriction of aforementioned two conditions, still create the contact site of air and described metal terminal 21, to see through the low-k characteristic of air, promote the resistance value of described metal terminal, thus, dealer can dwindle the predetermined gap D1 of 21 of described metal terminals, to improve required the taking up room of this pin structure 2, the configuration that makes this electronic installation be designed to comparatively lightly simplify, and then meet the demand of existing market.
In the first preferred embodiment of the present utility model, this predetermined gap D1 is 1.0 millimeters, 2.0 millimeters that compare have at present been reduced whole one times, but on actual applying, this predetermined gap D1 still can adjust according to dealer's demand, and consider error possible on processing procedure, therefore the zone of reasonableness of this predetermined gap D1 between 1.2～0.8 millimeters, the cross sectional configurations of this metal terminal 21 is the length of side between the rectangle of 0.38～0.42 millimeter.Pin structure of the present utility model is being utilized high frequency simulation software, simulate after the electrical characteristic of a signal by this metal terminal 21 time, confirm that pin structure 2 of the present utility model can meet the impedance requirements of USB3.0 in high-frequency transmission really, resistance value is all between 78～105 ohm.
Separately, refer to again shown in Fig. 3, in the first preferred embodiment of the present utility model, the cross sectional configurations of this hollow groove 220 is a rectangle hole, and the depth D 2 of this hollow groove 220 is greater than the bore D3 of this perforate 221.In addition, in the present embodiment, described metal terminal 21 can also be subdivided into branched the first terminal 211 and branched the second terminal 212, described the first terminal 211 is arranged in the position of a contiguous side in this fixed base frame 22 in parallel to each other, 212 of described the second terminals are arranged in the position of contiguous opposite side in this fixed base frame 22 in parallel to each other, and 212 of described the first terminal 211 and the second terminals see through this fixed base frame 22 and maintain a space D 4, meaning, one side of the center section part of described the first terminal 211 and the second terminal 212 can see through described hollow groove 220, contact to outside air, its another side can be coated by this fixed base frame 22.
Again, in the aforementioned embodiment, the configuration of this metal terminal 21 is all the L shape of bending, but described metal terminal 21 also may there is no bending, meaning, the configuration of described metal terminal 21 is not limited with the configuration that Fig. 2 and Fig. 3 were drawn, described metal terminal 21 is to transmit bridge as the data between circuit board and extension facility, therefore its configuration can be adjusted according to the configuration mode in this electronic installation, is not necessary condition restriction of the present utility model.
The above, be only a preferred embodiment of the present utility model, but; technical characterictic of the present utility model is not limited to this; the personage of all correlative technology fields after considering technology contents of the present utility model in light of actual conditions, can think easily and equivalence change, all should not depart from protection category of the present utility model.
Claims (6)
1. a pin structure of utilizing hollow groove to promote resistance value, be to be applied in an electronic installation, in this electronic installation, be provided with a circuit board and an extension facility, on this circuit board and extension facility, be respectively equipped with a connectivity port, it is characterized in that, this pin structure comprises:
Branched metal terminal, the configuration at its two ends respectively with this circuit board and extension facility on a connectivity port match, can be to be respectively electrically connected mutually with this connectivity port respectively, make can carry out transfer of data between this circuit board and extension facility; And
One fixed base frame, to be formed by insulating material, and be fixedly arranged on the center section part of described metal terminal, so that described metal terminal is combined into one, and make respectively between this metal terminal, to maintain respectively a predetermined gap, extend respectively inwardly position corresponding to described metal terminal on the both sides of this fixed base frame, to form respectively a hollow groove, make the center section part of described metal terminal can see through described hollow groove, contact extraneous air, and by the low-k characteristic of air, promote the resistance value of described metal terminal.
2. pin structure as claimed in claim 1, is characterized in that, respectively this hollow groove can form respectively at the surface of this fixed base frame a perforate, and the bore of this perforate is less than the degree of depth of this hollow groove.
3. pin structure as claimed in claim 2, is characterized in that, the cross sectional configurations of this hollow groove is a rectangle.
4. the pin structure as described in claim 1,2 or 3, it is characterized in that, described metal terminal can also be subdivided into branched the first terminal and branched the second terminal, described the first terminal is located at the position of a side of contiguous this fixed base frame in parallel to each other, described the second terminal is located at the position of the opposite side of contiguous this fixed base frame in parallel to each other, make a side of the center section part of described the first terminal and the second terminal can be respectively see through respectively this hollow groove and contact to air, its another side can be coated by this fixed base frame.
5. pin structure as claimed in claim 4, is characterized in that, respectively the predetermined gap between this metal terminal is between 1.2～0.8 millimeters.
6. pin structure as claimed in claim 5, is characterized in that, respectively the cross sectional configurations of this metal terminal is the length of side between the rectangle of 0.38～0.42 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603275.5U CN203521688U (en) | 2013-09-27 | 2013-09-27 | Pin structure improving resistance value by utilizing hollow groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603275.5U CN203521688U (en) | 2013-09-27 | 2013-09-27 | Pin structure improving resistance value by utilizing hollow groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521688U true CN203521688U (en) | 2014-04-02 |
Family
ID=50380566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320603275.5U Expired - Fee Related CN203521688U (en) | 2013-09-27 | 2013-09-27 | Pin structure improving resistance value by utilizing hollow groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375137A (en) * | 2014-08-20 | 2016-03-02 | 至良科技股份有限公司 | Conductive pin structure and electric connector with same |
| CN105576412A (en) * | 2014-10-09 | 2016-05-11 | 至良科技股份有限公司 | Terminal structure and electrical connector comprising same |
-
2013
- 2013-09-27 CN CN201320603275.5U patent/CN203521688U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375137A (en) * | 2014-08-20 | 2016-03-02 | 至良科技股份有限公司 | Conductive pin structure and electric connector with same |
| CN105375137B (en) * | 2014-08-20 | 2018-03-09 | 至良科技股份有限公司 | Conductive pin structure and the electric connector with the conductive pin structure |
| CN105576412A (en) * | 2014-10-09 | 2016-05-11 | 至良科技股份有限公司 | Terminal structure and electrical connector comprising same |
| CN105576412B (en) * | 2014-10-09 | 2018-03-06 | 至良科技股份有限公司 | Terminal structure and the electric connector with the terminal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |