CN106602302A - Electric connector terminal - Google Patents
Electric connector terminal Download PDFInfo
- Publication number
- CN106602302A CN106602302A CN201611202872.1A CN201611202872A CN106602302A CN 106602302 A CN106602302 A CN 106602302A CN 201611202872 A CN201611202872 A CN 201611202872A CN 106602302 A CN106602302 A CN 106602302A
- Authority
- CN
- China
- Prior art keywords
- contact
- electric connector
- terminal
- guide portion
- contact arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/7076—Coupling devices for connection between PCB and component, e.g. display
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/82—Coupling devices connected with low or zero insertion force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses an electric connector terminal, and a chip module can be electrically connected to a circuit board. The electric connector terminal comprises a body and a pair of terminal contact arms extending from one side of the body. The upper end of each contact arm is provided with a guide part and a contact part which is connected to the guide part. An opening for inserting a chip module pin is formed between the guide part and the contact part, and the contact part in one terminal contact arm obliquely extends to the contact part in the other terminal contact arm from the joint part of the contact part and the guide part. In the process that the pin of the chip module moves to a final contact position of the contact part, the contact part is pressed, except for lateral change, the contact part is rotated obviously, and thus the pushing force required in moving the chip module can be reduced.
Description
Technical field
The present invention relates to a kind of electric connector terminal, espespecially a kind of electric connector for being electrically connected with chip module to circuit board
Terminal.
Background technology
ZIF (Zero Insertion Force) electric connector is widely used in computer system, by chip dies
Group is electrically connected to circuit board.Prior art discloses various ZIF electrical connectors, such as U.S. Patent Bulletin 6623298,
6508658th, 6471536 and Chinese patent bulletin CN2520033, CN2520588, CN2520013 etc..ZIF electrical connector one
As include lid and be contained between matrix and lid to drive lid from an open position that matrix, movable group be connected on matrix
The driving means slided to a make position are put, some terminal accommodatings for containing electric connector terminal are wherein provided with matrix
Groove, the position of correspondence matrix upper terminal accepting groove offers some through holes on lid.ZIF electrical connector is being electrically connected with chip dies
When group is to circuit board, chip module is placed in lid top, and the stitch of chip module passes through the through hole on lid and extend into terminal
Among accepting groove；When lid is in the open position, the stitch of chip module is not in electrical contact with electric connector terminal, works as lid
Under the drive of driving means from open position to make position move when, the stitch of chip module is also moved to a direction,
And finally reach with electric connector terminal good in electrical contact, electrically connect so as to set up between electric connector and chip module
Connect.Prior art equally discloses various electric connector terminals for being applied to ZIF electrical connector, such as Chinese patent bulletin
CN2537140, CN2537141, CN2519451, CN2523053, CN2458763 etc., such electric connector terminal is typically provided with
Guide portion and final contact site, wherein guide portion can make the stitch of chip module that terminal accommodating is inserted in the way of zero insertion force
Among groove, final contact site is then in electrical contact with stitch after the stitch movement of chip module.
Fig. 1 to Fig. 4 discloses a kind of electric connector terminal 1 for ZIF electrical connector related to the present invention, and it includes
Matrix 10, a pair of terminal arm 12 being symmetrically extended from the side of matrix 10, and it is in the same direction with terminal arm 12 from the lower end of matrix 10
The weld part 14 of extension.Terminal arm 12 includes the cantilever 120 being connected with matrix 10, and the upper end of cantilever 120 is formed with contact site
122, a guide portion 124 extends from the end of contact site 122 towards matrix 12, and two guide portions 124 are gradually distance from so that chip
The stitch 8 of module can be inserted in the way of ZIF, and the upper end of terminal arm 12 is formed with and is available for chip module (not shown) stitch 8 to insert
The opening for entering, wherein two contact sites 122 are linearly arranged and parallel to each other.
When the ZIF electrical connector using above-mentioned electric connector terminal 1 is (not shown) chip module is electrically connected with to circuit board
When (not shown), the stitch 8 of chip module in initial position, between two guide portions 124, when electric connector lid by
Open position to make position move when, the stitch 8 of chip module will be driven and along the direction away from matrix 10 (in Fig. 3
Direction shown in arrow Fa) motion, finally, the stitch 8 of chip module will be pushed between two contact sites 122, two contact sites 122
It is squeezed and produces transverse direction deformation (direction as shown in arrow N in Fig. 3) to provide the strength being in close contact with stitch 8.
However, at least there is following defect in above-mentioned electric connector terminal 1：As shown in Figures 3 and 4, in the pin of chip module
During foot 8 is moved, guide portion 124 and contact site 122 will produce an a counteracting force Fn and frictional force μ Fn, phase to stitch 8
Single stitch 8 is answered to move to power Fa=2Fn × (sin θ+μ cos θ) that final contact position needs, wherein θ is contacted for stitch 8
Angle between point tangential direction and the moving direction of stitch 8, μ is then the coefficient of friction between stitch 8 and electric connector terminal 1,
Because the final contact position of electric connector terminal 1 and stitch 8 is the linear formula of contact site 122 so that the stitch 8 of chip module
During being moved to final contact position from initial position, particularly stitch 8 starts to be contacted to stitch 8 with contact site 122 to reach
To final position during, contact site 122 gradually produces transversely deforming and rotates action, but spinning movement is limited, knot
Fruit is that θ is kept essentially constant, and correspondingly push-on force Fa keeps constant.Electric connector generally has many electric connector terminals, false
Fixed sum is N, then it is NFa that drive mechanism at least needs the push-on force for providing, and push-on force NFa is moved in chip module stitch 8
Need to keep constant during dynamic.With the increasing development trend of total number of terminals N in electric connector, ZIF electrical connector is needed
The push-on force NFa to be provided also increasing but excessive push-on force will affect the design of driving means and cause plastic body
Deformation, and larger constant push-on force increased plastic matrix deformation risk.
In view of above-mentioned condition, it is necessory to provide a kind of improved electric connector terminal, to overcome above-mentioned electric connector end
The defect that son is present.
The content of the invention
The technical problem to be solved is：A kind of electric connector terminal is provided, it can reduce chip module pin
Foot reaches final required push-on force in electrical contact with it.
To solve above-mentioned technical problem, the technical scheme is that：
A kind of electric connector terminal, can be electrically connected with chip module to circuit board, and it includes that main body and autonomous agent side are prolonged
A pair of terminal contact arm stretched, the contact site that the upper end of each contact arm is respectively equipped with guide portion and is connected with guide portion,
The opening for being available for chip module stitch to insert is formed between the guide portion and between contact site, wherein on a terminal contact arm
Junction of the contact site from it with guide portion incline towards the contact site on another terminal contact arm and extend.
Compared with prior art, the present invention has the beneficial effect that：The contact site of electric connector terminal is from itself and guide portion
Junction towards on another terminal contact arm contact site incline extend, therefore, the stitch of chip module be pushed into its with
During the final contact position of contact site contact, contact site is squeezed in addition to producing transversely deforming, also has substantially
Spinning movement, taper into the angle between stitch moving direction and stitch contact point tangential direction, correspondingly reduce
Push-on force.
Further improvement of the invention is as follows：
Further, the termination contact arm includes the great cantilever being connected with electric connector terminal main body, and connection is greatly
The little cantilever of cantilever and guide portion.
Further, the one end of the little cantilever from great cantilever away from main body upwardly extends.
Further, the guide portion and contact site of the two-terminal contact arm from childhood cantilever rise towards main body extend and gradually
Mutually draw close.
Further, the pair of termination contact arm is symmetrical arranged.
Further, wherein the contact site on a terminal contact arm connects with the junction of guide portion from it towards another terminal
Contact site on contact arm is inclined and extended, and junction of the contact site on another terminal contact arm from it with guide portion is perpendicular to main body
Extend.
Further, the contact site itself is not directly connected with little cantilever, and it passes through guide portion and is connected with little cantilever.
Description of the drawings
Fig. 1 is the axonometric chart of electric connector terminal related to the present invention.
Fig. 2 is the top view of electric connector terminal related to the present invention.
Fig. 3 is schematic diagram when electric connector terminal shown in Fig. 2 is contacted with chip module stitch, the wherein pin of chip module
Foot is not yet pushed to final contact position.
Fig. 4 is schematic diagram when electric connector terminal shown in Fig. 2 is contacted with chip module stitch, the wherein pin of chip module
Foot has been pushed to final contact position.
Fig. 5 is the axonometric chart of electric connector terminal of the present invention.
Fig. 6 is the top view of electric connector terminal of the present invention.
Fig. 7 is schematic diagram when electric connector terminal shown in Fig. 6 is contacted with chip module stitch, the wherein pin of chip module
Foot is not yet pushed to final contact position.
Fig. 8 is schematic diagram when electric connector terminal shown in Fig. 6 is contacted with chip module stitch, the wherein pin of chip module
Foot has been pushed to final contact position.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further described.
Fig. 5 to Fig. 8 is refer to, the electric connector terminal 2 of the present invention can be electrically connected with chip module (not shown) to circuit
Plate (not shown), it includes a pair of terminal contact arm 22 that main body 20, the side of autonomous agent 20 are extended, and under autonomous agent 20
The weld part 24 that end extends in the same direction with termination contact arm 22.
Main body 20 extends in vertical direction, which is provided with some protuberances 200, and electric connector terminal 20 is fixed on into it
In the electric connector (not shown) applied.
The side of 22 autonomous agent of a pair of terminal contact arm 20 extends in the same direction, and the upper end of each contact arm is respectively equipped with guide portion
220 and the contact site 222 that is connected with guide portion 220, it is formed between the guide portion 220 and between contact site 222 and is available for core
The opening of the insertion of piece module stitch 9.Each termination contact arm 22 includes the great cantilever 224 being connected with main body 20, and connection is greatly
The little cantilever 226 of cantilever 224 and guide portion 220.As shown in Figures 5 and 6, little cantilever 226 from great cantilever 224 away from main body 20
Upwardly extend at the top of one end, wherein the contact site 222 on a terminal contact arm 22 is from its junction direction with guide portion 220
Contact site on another terminal contact arm 22 is inclined and extended.
Herein, it is noted that Fig. 5 and Fig. 6 only show a kind of structure of contact site 222 and guide portion 220：Two-terminal connects
From childhood 226, cantilever extends and gradually mutually draws close the guide portion 220 and contact site 222 of contact arm 22 towards main body 20, and now one
Can be completely the same to the structure of terminal contact arm 22, it is symmetrical set；And the guide portion 220 of electric connector terminal 2 of the present invention and connect
Contact portion 222 can also have another to design, i.e.,：Contact site 222 on a wherein terminal contact arm 22 is from itself and guide portion 220
Junction incline towards the contact site 222 on another terminal contact arm 22 and extend, and the contact on another terminal contact arm 22
Portion 222 extends with the junction of guide portion 220 from it perpendicular to main body 20, now, because the local of two-terminal contact arm 22 is tied
Structure is variant so that asymmetrical relative to one another.Above two is designed, and contact site 222 itself is not directly connected with little cantilever 226, and it is logical
Cross guide portion 220 to be connected with little cantilever 226, i.e., contact site 222 is arranged in cantilever；But contact site 222 can also be directly outstanding with little
Arm 226 be connected, will the present invention design philosophy：Contact site 222 on a wherein terminal contact arm 22 is from itself and guide portion 220
Junction towards on another terminal contact arm 22 contact site incline extend, be applied directly to aforesaid related to the present invention
On electric connector terminal 1, then contact site 222 is non-cantilever setting.
Below, accompanying drawing 7-8 will be combined to describe how electric connector terminal of the present invention 2 reduces in use in detail
The push-on force of chip module stitch 9.
As shown in Figures 7 and 8, the stitch 9 of chip module is inserted into first electric connector terminal 2 in the way of zero insertion force
Two guide portions 220 between, then, stitch 9 will be final towards its under the drive of the driving means of electric connector (not shown)
Move position.When stitch 9 starts to be contacted with two contact sites 222, two contact sites 222 are squeezed generation transversely deforming (such as Fig. 7
Shown in middle arrow M), and in the moving direction such as Fig. 7 of stitch 9 shown in arrow Fa, have between stitch 9 and electric connector terminal 2
, there is an angle theta between the tangential direction and the moving direction Fa of stitch 9 of such contact point in one contact point.It is pushed to most in stitch 9
During final position is put, each termination contact arm 22 rubs because deformation can produce a counteracting force Fn and in contact point pair stitch
Power μ Fn is wiped, μ is coefficient of friction, single stitch 9 can be calculated and move to the push-on force Fa=2Fn that final contact position needs
× (sin θ+μ cos θ), it is assumed that the sum of terminal 2 be N, then electric connector driving means need provide total push-on force be
NFa。
Due to the above-mentioned design of electric connector terminal of the present invention 2, wherein the contact site 222 from its on a terminal contact arm 22
Incline towards the contact site 222 on another terminal contact arm 22 with the junction of guide portion 220 and extend, therefore, in chip module
During stitch 9 is pushed to final position, while at least a contact site 222 produces transversely deforming, also occur obvious
Spinning movement so that the angle theta between the tangential direction and the moving direction Fa of stitch 9 of contact point will be tapered into, as shown in Figure 8
Final position, two contact site 222 is substantially parallel after deforming, and the value of angle theta is equal to 0.Obviously, according to formula F a=2Fn ×
(sin θ+μ cos θ), because θ is tapered into, Fa is gradually reduced, and Nfa is gradually reduced, and particularly a pair of terminal contact arm 22 is in right
When claiming to arrange, therefore, in the push-on process of stitch 9, it is not necessary to maintain higher push-on force.So, when the electricity in electric connector
When the sum of bonder terminal 2 increases, the electric connector terminal 2 of the present invention due to the push-on process of stitch 9 can be reduced in need push away
Enter power, therefore the risk of plastic matrix infringement can be reduced, the design requirement of driving means is correspondingly also reduced.
The present invention is not limited to above-mentioned specific embodiment, one of ordinary skill in the art from above-mentioned design,
Without performing creative labour, done a variety of conversion, it is within the scope of the present invention.
Claims (7)
1. a kind of electric connector terminal, can be electrically connected with chip module to circuit board, and it includes that main body and autonomous agent side extend
And a pair of terminal contact arm for going out, the upper end of each termination contact arm is respectively equipped with guide portion and the contact connected with guide portion
Portion, is formed with the opening for being available for chip module stitch to insert between the guide portion and between contact site, it is characterised in that：Wherein
Contact site on one terminal contact arm is inclined towards the contact site on another terminal contact arm with the junction of guide portion from it and prolonged
Stretch.
2. electric connector terminal as claimed in claim 1, it is characterised in that：The termination contact arm includes and electric connector end
The connected great cantilever of sub- main body, and the little cantilever of connection great cantilever and guide portion.
3. electric connector terminal as claimed in claim 2, it is characterised in that：The little cantilever is from great cantilever away from the one of main body
End upwardly extends.
4. electric connector terminal as claimed in claim 3, it is characterised in that：The guide portion of the two-terminal contact arm and contact
From childhood cantilever rises towards main body extension and gradually mutually draws close in portion.
5. electric connector terminal as claimed in claim 4, it is characterised in that：The pair of termination contact arm is symmetrical arranged.
6. electric connector terminal as claimed in claim 1, it is characterised in that：Contact site on a wherein terminal contact arm is from it
Incline towards the contact site on another terminal contact arm with the junction of guide portion and extend, the contact site on another terminal contact arm
Extend perpendicular to main body with the junction of guide portion from it.
7. the electric connector terminal as described in claim 4 or 6, it is characterised in that：The contact site itself is not directly outstanding with little
Arm is connected, and it passes through guide portion and is connected with little cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202872.1A CN106602302A (en) | 2016-12-23 | 2016-12-23 | Electric connector terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202872.1A CN106602302A (en) | 2016-12-23 | 2016-12-23 | Electric connector terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602302A true CN106602302A (en) | 2017-04-26 |
Family
ID=58603192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611202872.1A Withdrawn CN106602302A (en) | 2016-12-23 | 2016-12-23 | Electric connector terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106602302A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2710195Y (en) * | 2004-05-10 | 2005-07-13 | 美国莫列斯股份有限公司 | Socket connector terminal |
| TWM275573U (en) * | 2004-12-17 | 2005-09-11 | Hon Hai Prec Ind Co Ltd | Electrical connector contact |
| CN1877916A (en) * | 2005-06-10 | 2006-12-13 | 富士康(昆山)电脑接插件有限公司 | Low insertion force type socket connector |
| US20090311889A1 (en) * | 2008-06-16 | 2009-12-17 | Hon Hai Precision Industry Co., Ltd. | Socket connector having contact terminals with reliable and durable interconnection with pin legs of a cpu |
-
2016
- 2016-12-23 CN CN201611202872.1A patent/CN106602302A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2710195Y (en) * | 2004-05-10 | 2005-07-13 | 美国莫列斯股份有限公司 | Socket connector terminal |
| TWM275573U (en) * | 2004-12-17 | 2005-09-11 | Hon Hai Prec Ind Co Ltd | Electrical connector contact |
| CN1877916A (en) * | 2005-06-10 | 2006-12-13 | 富士康(昆山)电脑接插件有限公司 | Low insertion force type socket connector |
| US20090311889A1 (en) * | 2008-06-16 | 2009-12-17 | Hon Hai Precision Industry Co., Ltd. | Socket connector having contact terminals with reliable and durable interconnection with pin legs of a cpu |
| TW201001845A (en) * | 2008-06-16 | 2010-01-01 | Hon Hai Prec Ind Co Ltd | Electrical connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170426 |