CN201243109Y - Novel low insertion force printed circuit board printed plug - Google Patents
Novel low insertion force printed circuit board printed plug Download PDFInfo
- Publication number
- CN201243109Y CN201243109Y CNU2008201326179U CN200820132617U CN201243109Y CN 201243109 Y CN201243109 Y CN 201243109Y CN U2008201326179 U CNU2008201326179 U CN U2008201326179U CN 200820132617 U CN200820132617 U CN 200820132617U CN 201243109 Y CN201243109 Y CN 201243109Y
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- China
- Prior art keywords
- printed
- plug body
- chamfering
- insertion force
- angle
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a novel low-insertion force printed circuit board printing plug, including a main plug; one end of the main plug is electrically connected with the circuit on the printed circuit board, while the other end is provided with chamfers on both sides; wherein, the angle of the chamfer near the front part of the main plug is greater than that of the chamfer near the rear part of the main plug. Through the changes of the chamfer angle, the acting process is divided into stages. In the initial stage, a larger slope is used to improve the increasing speed of the insertion force to complete more acting in the same process, so that the posterior acting decreases to reduce the maximum insertion force and achieve easier cooperation between the PCB printing plug and an AMC connector.
Description
Technical field
The utility model relates to electronic device field, specifically, is a kind of novel low insertion force PCB (Printed Circuit Board, printed circuit board) printed-circuit connector.
Background technology
MicroTCA (Micro Telecommunications Computing Architecture, micro telecommunication and computer architecture) standard is as being applied in the open platform framework of future generation of information and mechanics of communication equipment, from 2006 by PICMG (PCI Industrial Computer Manufacturers Group, industry and computer industry tissue) since the tissue release, its plurality of advantages such as high-performance, low cost, can expand, volume is little etc., make it not only become the selection of communications equipment manufacturer, also be applicable to a lot of industries.At track traffic and power domain, aspect the control of military project communication network, the low-power consumption owing to the MicroTCA system makes the flying power of vehicle, naval vessel, aircraft stronger, thereby is widely applied in addition as the U.S..These advantages of MicroTCA framework make it almost can be applied to all industrial circles, comprise fields such as the production automation, national defence, automobile, communication, medical treatment and space flight and aviation, and its solution and service market are with covering the whole world.
In the MicroTCA.0 R1.0 standard, definition AMC (Advanced Mezzanine Card, senior dielectric card) the support plate PCB of module is by edges of boards printed-circuit connector (Printed Contact, the domestic golden finger that also is referred to as visually), cooperates realization to be electrically connected with AMC connector on the backboard.According to standard, the AMC connector has 170 terminals, and for the reliability that guarantees to be electrically connected, in the connector design, each terminal and pcb board limit printed-circuit connector must have the positive force of enough degree.When pcb board limit printed-circuit connector cooperates with the AMC connector, the insertion force of pcb board limit printed-circuit connector and (the so-called positive correlation of the positive force relation of being proportionate, be meant that independent variable increases, dependent variable also and then increases, if coefficient correlation is certain, do not change with independent variable, promptly be proportional relationship, direct proportion is the special case in the positive correlation), with the proportional relation of the quantity of terminal.
Printed-circuit connector of the prior art through a chamfering, in plug ends two respectively forms a slope 2 after the chamfering in printed-circuit connector 1 end as shown in Figure 1.Fig. 2 is the cross sectional representation of PCB printed-circuit connector of the prior art when cooperating with the AMC bonder terminal, and printed-circuit connector 1 is inserted in the AMC bonder terminal 3, and chamfering makes insertion process comparatively laborsaving.
Based on the demand of reliable electrical connection, guaranteed positive force to a certain degree in the design of AMC connector, because number of terminals is many, make that insertion force was big when the PCB printed-circuit connector cooperated with connector simultaneously, the insertion operation of pcb board is difficulty relatively.Pcb board with a printed-circuit connector is like this, has the pcb board in two golden finger districts (i.e. two printed-circuit connectors) and the insertion force of laminated PCB structure and is doubled and redoubled especially, and this makes that the assembling of AMC connector cooperates difficulty more on printed-circuit connector and the backboard.
The utility model content
The technical problems to be solved in the utility model is to insert difficult problem at PCB printed-circuit connector in the prior art and AMC connector, and a kind of PCB printed-circuit connector of novel low insertion force is provided.
In order to address the above problem, the utility model provides a kind of novel low insertion force printed circuit board printed-circuit connector, comprise plug body, plug body one end is electrically connected with circuit on the printed circuit board, other end both sides are provided with chamfering, wherein, the chamfer angle of close described plug body front portion is greater than the chamfer angle near the plug body rear portion.
Further, described chamfering is divided into two sections, and wherein, the angle of one section chamfering of close described plug body front portion is greater than one section chamfer angle near described plug body rear portion.
Further, the angle of one section chamfering of close described plug body front portion is 30～50 °; The angle of one section chamfering at close described plug body rear portion is 15～30 °.
Further, the angle of the chamfering of close described plug body front portion is 45 °; The angle of the chamfering at close described plug body rear portion is 20 °.
Further, described chamfering is an arc angling.
Further, the arc angling of described plug body one end both sides is connected together mutually, makes this end of plug body become semicircle.
Further, described chamfering is parabola shaped.
The utility model makes the segmentation of acting process by the variation of chamfer angle.At initial segment, utilize gathering way of bigger domatic raising insertion force, make same stroke can finish more acting, thereby make the acting amount of back reduce, and then reduce maximum insertion force, make the PCB printed-circuit connector more easy with cooperating of AMC connector.
Description of drawings
Fig. 1 is the structural representation of a kind of PCB printed-circuit connector commonly used in the prior art;
Fig. 2 is the schematic diagram that PCB printed-circuit connector of the prior art cooperates with the AMC bonder terminal;
Fig. 3 is the structural representation of first embodiment of PCB printed-circuit connector of the present utility model;
Fig. 4 is the schematic diagram that PCB printed-circuit connector embodiment illustrated in fig. 3 cooperates with the AMC bonder terminal;
Fig. 5 is second schematic diagram that embodiment cooperates with the AMC bonder terminal of PCB printed-circuit connector of the present utility model;
Fig. 6 is the insertion force contrast schematic diagram that the printed-circuit connector of prior art and printed-circuit connector of the present utility model form when using.
Embodiment
In PCB printed-circuit connector and process that the AMC connector cooperates, the maximum on the insertion force curve is maximum insertion force, and maximum insertion force is the main factor that the difficulty or ease program is inserted in influence.Reduce the maximum of insertion force, just can realize the convenient purpose of inserting.
The engagement process of PCB printed-circuit connector and AMC connector is by insertion force acting, a process that makes the increase of AMC bonder terminal elastic potential energy.PCB printed-circuit connector insertion force can increase along with the increase of terminal displacement, and the peak value of insertion force appears at terminal displacement maximum.Principle according to merit: use any machinery not economize merit, therefore the PCB printed-circuit connector of same thickness is inserted the AMC connector, the total amount of being done work is all identical.The utility model promptly is the computing formula according to merit: W=FS, under the constant situation of acting total amount W, can reduce power F by increasing displacement S, thereby realize the reduction to the maximum insertion force of PCB printed-circuit connector.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the utility model and being implemented, but illustrated embodiment is not as to qualification of the present utility model.
First embodiment of PCB printed-circuit connector of the present utility model as shown in Figure 3.In this embodiment, plug body 4 one ends of PCB printed-circuit connector are electrically connected with the circuit (not shown) of PCB, and the other end is provided with chamfering, and this chamfering is divided into two sections, form first domatic 5 and second domatic 6 respectively.Wherein, the angle of one section chamfering of close plug body 4 front portions is 45 °, and the angle of one section chamfering at close plug body rear portion is 20 °.Plug body 4 is towards a side of AMC connector the place ahead as plug side's body in using.The angle of two sections chamferings is not limited to 45 ° and 20 °, as long as the angle of one section chamfering of close plug body 4 front portions is greater than the angle of one section chamfering at close plug body 4 rear portions.Preferable selection is, is 30～50 ° near the angle of one section chamfering of plug body 4 front portions, is 15～30 ° near the angle of one section chamfering at plug body 4 rear portions.Chamfering also is not limited to be divided into two sections, also can be divided into more multistage, when being divided into more than three sections, arbitrarily in the two neighboring sections, all to meet near the angle of one section chamfering of plug body 4 front portions greater than requirement near the angle of one section chamfering at plug body 4 rear portions.As shown in Figure 3, the angle of chamfering described in the utility model is meant the angle of the formed angle of longitudinal profile of the domatic and plug body of chamfering.
As shown in Figure 4, in the PCB of first embodiment printed-circuit connector and process that the AMC bonder terminal cooperates, at first first of plug body 4 domatic 5 contact with AMC bonder terminal 3, AMC bonder terminal 3 is pushed open to both sides, because first domatic 5 is comparatively precipitous, the PCB printed-circuit connector pushes AMC bonder terminal 3 and makes the terminal mouth open institute's work to have a sizable part to finish in this section; When being inserted into to a certain degree, second domatic 6 contacts with AMC bonder terminal 3 again, and second domatic 6 becomes mild, compares the stroke lengthening of the merit of doing isodose with first domatic 5, so the insertion force peak value is reduced, make PCB printed-circuit connector maximum insertion force in the AMC connector reduce.And because comparatively precipitous first domatic 5 made most of merit, therefore total working stroke can not increase too much.
Second embodiment of PCB printed-circuit connector of the present utility model as shown in Figure 5.In this embodiment, the chamfering of plug body 7 ends is parabola shaped, and the parabola shaped chamfering of both sides connects into an integral body in the end of plug body 7, makes the end of plug body 7 be parabolic.The chamfering of plug body 7 ends also can be arc, and the arc angling of both sides also can connect into an integral body in plug body 7 ends, makes the end semicircular in shape of plug body 7.As shown in Figure 5, in the PCB of second embodiment printed-circuit connector and process that AMC bonder terminal 3 cooperates, contact with AMC bonder terminal 3 51,52,53 positions, from 51 to 53 gradients slow down gradually, the sizable part that the PCB printed-circuit connector inserts the required acting of AMC connector is done at less 51 to 52 sections of insertion force, though to during 53 positions insertion force risen to a certain degree, but the gradient slows down, the acting amount that need finish is less, and it is longer with 51 to 52 sections working strokes of comparing the merit of doing isodose, the amplification of insertion force diminishes, thereby has reduced the peak value of insertion force to the full extent, has reduced maximum insertion force.
As shown in Figure 6, the curve chart of insertion force in a, b and the c PCB printed-circuit connector that is respectively prior art, first embodiment and second embodiment and the process that the AMC bonder terminal cooperates.Wherein, dash area is an insertion force institute work, and a, b are identical with the area of dash area among the c, illustrates that three kinds of situation insertion force institute works are identical.A in the comparison diagram 6, b and c as can be seen, the maximum of two embodiment insertion forces of the present utility model is all less than the maximum of the insertion force of prior art.And, under the situation of the 3rd embodiment and since the first half acting amount of stroke greater than prior art in the acting amount of identical stroke, therefore can under the situation that does not increase total kilometres, reduce maximum insertion force.
The above embodiment is the preferred embodiment that proves absolutely that the utility model is lifted, and protection range of the present utility model is not limited thereto.Being equal to that those skilled in the art are done on the utility model basis substitutes or conversion, all within protection range of the present utility model.Protection range of the present utility model is as the criterion with claims.
Claims (7)
1, a kind of novel low insertion force printed circuit board printed-circuit connector, comprise plug body, plug body one end is electrically connected with circuit on the printed circuit board, other end both sides are provided with chamfering, it is characterized in that the chamfer angle of close described plug body front portion is greater than the chamfer angle near the plug body rear portion.
2, printed-circuit connector as claimed in claim 1 is characterized in that, described chamfering is divided into two sections, and wherein, the angle of one section chamfering of close described plug body front portion is greater than one section chamfer angle near described plug body rear portion.
3, printed-circuit connector as claimed in claim 2 is characterized in that, the angle of one section chamfering of close described plug body front portion is 30～50 °; The angle of one section chamfering at close described plug body rear portion is 15～30 °.
4, printed-circuit connector as claimed in claim 3 is characterized in that, the angle of the chamfering of close described plug body front portion is 45 °; The angle of the chamfering at close described plug body rear portion is 20 °.
5, printed-circuit connector as claimed in claim 1 is characterized in that, described chamfering is an arc angling.
6, printed-circuit connector as claimed in claim 5 is characterized in that, the arc angling of described plug body one end both sides is connected together mutually, makes this end of plug body become semicircle.
7, printed-circuit connector as claimed in claim 1 is characterized in that, described chamfering is parabola shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201326179U CN201243109Y (en) | 2008-07-30 | 2008-07-30 | Novel low insertion force printed circuit board printed plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201326179U CN201243109Y (en) | 2008-07-30 | 2008-07-30 | Novel low insertion force printed circuit board printed plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201243109Y true CN201243109Y (en) | 2009-05-20 |
Family
ID=40716400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201326179U Expired - Lifetime CN201243109Y (en) | 2008-07-30 | 2008-07-30 | Novel low insertion force printed circuit board printed plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201243109Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694291A (en) * | 2012-06-15 | 2012-09-26 | 华为技术有限公司 | Connector terminal |
| CN107196160A (en) * | 2017-05-27 | 2017-09-22 | 中国电子科技集团公司第四十研究所 | A kind of adapter male and coaxial connector for reducing coaxial adatpter insertion force cusp |
-
2008
- 2008-07-30 CN CNU2008201326179U patent/CN201243109Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694291A (en) * | 2012-06-15 | 2012-09-26 | 华为技术有限公司 | Connector terminal |
| CN107196160A (en) * | 2017-05-27 | 2017-09-22 | 中国电子科技集团公司第四十研究所 | A kind of adapter male and coaxial connector for reducing coaxial adatpter insertion force cusp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |