CN106595927B - The method and device of electric connector contact pressure at a temperature of a kind of measurement varying environment - Google Patents
The method and device of electric connector contact pressure at a temperature of a kind of measurement varying environment Download PDFInfo
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- CN106595927B CN106595927B CN201611076900.XA CN201611076900A CN106595927B CN 106595927 B CN106595927 B CN 106595927B CN 201611076900 A CN201611076900 A CN 201611076900A CN 106595927 B CN106595927 B CN 106595927B
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- contact
- temperature
- electric connector
- control system
- heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
Abstract
The present invention relates to field of measuring technique, refer in particular to a kind of method and apparatus for measuring the contact pressure of electric connector contact at different ambient temperatures.Three-dimensional simulation analysis model is established using the modeling module of simulation analysis software.The Contact simulation analysis at a temperature of varying environment is carried out to the model of foundation.Show that the curve and data that separating force changes over time in electric connector contact swapping process under different temperatures, founding mathematical models simultaneously draw matched curve by simulation analysis.Obtained numerical relationship model is imported in display and control system.Adjustment moves up and down device and pin piece and jack part are moved in heating device by spiral regulator, after thermal to be added reaches assigned temperature, make up and down motion device slowly move upwards complete pin piece and jack part plug together movement, control, which moves up and down to fill to move downward, after the completion of movement is gradually disengaged contact, and device for measuring force is measured the contact pressure of contact separation process and is shown on the interface of display and control system.
Description
Technical field
The present invention relates to field of measuring technique, a kind of measurement electric connector contact connecing at different ambient temperatures is refered in particular to
The method and apparatus of touch pressure are particularly suitable for the measurement of electric connector contact contact pressure under different hot environments.
Background technique
The contact (pin piece and jack part) of electric connector is the direct carrier of electronic equipment signal transmission, is had letter
Number the effect of output end is transmitted to from the input terminal of electric connector, if losing the reliable contacts of contact, connector is just lost
The effect of its electrical connection.
One of an important factor for contact resistors of electric connector is influence electric connector reliability, electric connector is working normally
When, it is desirable that there is small and stable resistance.If contact resistors of electric connector is bigger, high-power applications occasion due to
The electric current of electric connector circulation is bigger, it is possible to cause the temperature of contact to increase rapidly, be likely to result in contact in this way
Part deformation even adhesion, to affect the performance of electric connector or even fatal harm can be caused to entire electrical system.
The reason of electric connector fails essentially consists in the failure of electric connector contact, the contact pressure between contact this
One factor is the major reason for causing it to fail, and the contact pressure between contact is too small to will lead to contact resistance increase, fever
Amount increases.Suitably improving contact pressure can make the contact area between contact increase, its contact resistance is become smaller, is improved
The reliability of contact.But if the value of contact pressure is increased above design requirement, it will lead to contact piece structure
Plastic deformation is even broken.
So reasonably determine contact pressure value be it is very necessary, higher environment temperature can make the hard of material
Degree reduces, and resilient contact performance can also declined, and causes contact pressure insufficient.However in Practical Project, due to electric connector
Overall dimensions it is smaller, the measurement of the contact pressure of contact is relatively difficult.
Application No. is electric connector contact contact engaging and separating force test dresses under a kind of 201220214578.3 entitled hot environments
It sets, which can measure the contact engaging and separating force of contact under different hot environments, but not be capable of measuring directly related with contact resistance
Contact pressure.Application No. is the 201010170544.4 entitled power connector contacts based on finite element analysis of three-dimensional thermal field
Temperature rise measuring method, the method can measure the temperature rise of contact contact, but not be capable of measuring temperature to electric connector contact
The influence size of contact pressure.
Summary of the invention
To solve the above problems, the present invention provides electric connector contact contact pressures at a temperature of a kind of measurement varying environment
The method and apparatus of power can measure the contact at a temperature of varying environment in the various sizes of contact swapping process of electric connector
Pressure.
To solve the above problems, concrete scheme of the present invention is as follows:
The device of electric connector contact contact pressure, specifically includes that motion control at a temperature of a kind of measurement varying environment
System, up and down motion device, positioning and clamping device, heat-insulated rod chucking appliance 1#, under heat-insulated bar, heating device, heating device fix
Frame, device for measuring force, heat-insulated rod chucking appliance 2#, spiral regulator, fixed link, upper heat-insulated bar, pin piece fixture, jack part fixture,
Display and control system, bracket；Positioning is installed on above up and down motion device with clamping device；Heat-insulated rod chucking appliance 1# is mounted on fixed
On position and clamping device；Under heat-insulated bar one end fixed by heat-insulated rod chucking appliance 1#, the other end install jack part fixture；Upper heat-insulated bar one
End is for installing pin piece fixture, and the other end is fixed on heat-insulated rod chucking appliance 2#, by device for measuring force below heat-insulated rod chucking appliance 2#
It is installed on above heat-insulated bar；Heating device is fixed below fixed link by heating device fixed frame；Heat-insulated rod chucking appliance 2# installation
Among fixed link, and it can be adjusted and be moved up and down by spiral regulator；Fixed link is fixed on pedestal upper end；Kinetic control system
Control the up and down motion of up and down motion device；Movement, measurement, the display of display and control system control whole device.
A kind of method of electric connector contact pressure at a temperature of measurement varying environment, it is characterised in that the following steps are included:
1, electric connector contact is established according to the actual size of contact using the modeling module of simulation analysis software to connect
Three-dimensional simulation analysis model when touching state.
2, the Contact simulation analysis of electric connector contact swapping process at a temperature of varying environment is carried out to the model of foundation.
3, it because only that temperature can just have an impact the contact pressure contact under high temperature environment, therefore considers
The environment temperature that high-temperature electrical connector is applicable in, carry out simulation analysis when in load, the identical situation of boundary condition for the first time
100 DEG C of device of emulation analysis environment temperature, second 150 DEG C of device of emulation analysis environment temperature, third time device of emulation analysis
200 DEG C of environment temperature, and so on until 10 times 550 DEG C of device of emulation analysis environment temperature.
4, electric connector contact at a temperature of obtaining 100 DEG C, 150 DEG C ... 550 DEG C respectively by the simulation analysis of step 3
The curve and data that separating force changes over time in swapping process are pressed by the curve matching order and contact of Mathematica
The relationship of power and separating force, using the separating force in electric connector contact swapping process as X value, contact pressure conduct
Y value, in the electric connector contact swapping process at a temperature of establishing 100 DEG C, 150 DEG C ... 550 DEG C respectively contact pressure and point
Mathematical model from power simultaneously draws matched curve.
It 5, will be in the electric connector contact device for pressure measurement at a temperature of obtained numerical relationship model importing varying environment
Display and control system in.
6, entire measuring device is placed on workbench, by pin piece and jack part be separately fixed at pin piece fixture and
In jack part fixture, adjustment positioning and clamping device are by jack part and pin piece co-axially align in the vertical direction.The positioning
It is mounted on above up and down motion device with clamping device, by the up and down motion of kinetic control system control up and down motion device.
7, adjustment move up and down device and spiral regulator pin piece and jack part are moved in heating device and
Make the two at a distance of 5~10mm.The temperature range that the heating device can be heated to is at 0 DEG C~600 DEG C.
8, to be reached the environment temperature of measurement contact contact pressure with control system interface setting heating device in display
It spends (such as 200 DEG C), setting connects the mobile speed of lower telecontrol equipment and displacement parameter.
9, after thermal to be added reaches assigned temperature (such as 200 DEG C), motion control system is manipulated by display and control system
System makes what up and down motion device was slowly moved to that specified displacement completes pin piece and jack part upwards to plug together movement, has acted
Moving up and down to fill to move downward at rear control is gradually disengaged contact, while device for measuring force measures connecing for contact separation process
Touch pressure is simultaneously shown on the interface of display and control system.
Detailed description of the invention
Fig. 1 is measuring method flow chart of the present invention.
Fig. 2 is the schematic diagram of electric connector contact pressure at a temperature of measurement varying environment of the present invention.
Fig. 3 is heating device end view of the present invention.
The matched curve that Fig. 4, Fig. 5 change over time for separating force at a temperature of varying environment of the present invention.
In figure: 1. kinetic control systems, 2. up and down motion devices, 3. positioning and clamping device, 4. heat-insulated rod chucking appliance 1#, 5.
Under heat-insulated bar, 6. heating devices, 7. heating device fixed frames, 8. device for measuring force, 9. heat-insulated rod chucking appliance 2#, 10. spirals adjustment dress
It sets, 11. fixed links, heat-insulated bar on 12., 13. pin piece fixtures, 14. pin pieces, 15. jack parts, 16. jack part fixtures, 17.
Display and control system, 18. workbench, 19. brackets.
Specific embodiment
Technical scheme is described further in the following with reference to the drawings and specific embodiments.
Embodiment: in conjunction with attached drawing, a kind of electric connector contact contact pressure method at a temperature of measurement varying environment is implemented
Steps are as follows:
(1), YF series high temperature resistant electric connector contact (pin piece and jack part) is chosen, is utilized according to its outer dimension
Design Modeler in ANSYS Workbench finite element emulation software Geometry establish electric connector contact insert and
Three-dimensional simulation analysis model when contact condition.
(2), the contact swapping process at a temperature of varying environment is carried out using Static-Structural analysis module
Contact simulation analysis.Material parameter is set in Engineering Data, jack part: material QBe2, density 8.23g/cm3
Property modulus be 128GPa, Poisson's ratio 0.35；Pin piece: material H62, density 8.43g/cm3, elasticity modulus 100MPa,
Poisson's ratio is 0.33.
(3), the added material attribute in the interface Mechanical, definition contact attribute: setting contact type is that friction connects
Touching, coefficient of friction are set as 0.2, and setting touching act is non-symmetric contact, the Lagrangian Arithmetic of selective enhancement, contact stiffness
It is set as 0.02, the control of other parameters option program；Grid division: pin unit size selection 0.2mm, the choosing of jack units size
0.15mm is selected, and local refinement is carried out to practical contact site；Setting, which solves, to be controlled and applies boundary condition: analytic process setting
Two load steps, first load step are that contact pin is inserted into jack process, and setting time is 1 second, and second load step is pulled out for contact pin
Jack process out, setting time are 2 seconds, and the sub-step number of each load step is 20 steps.Apply fixed constraint in jack bottom, is inserting
Needle bottom surface applies displacement 3.5mm, is 100 DEG C to upper application environment temperature in contact.
(4), the first time device of emulation analysis environment temperature 100 under the load of application and the identical situation of boundary condition
DEG C, second 150 DEG C of device of emulation analysis environment temperature, 200 DEG C of third time device of emulation analysis environment temperature, and so on
10 times 550 DEG C of device of emulation analysis environment temperature.
(5), the environment temperature operation being arranged every time according to above-mentioned steps (4) solves, and leads result data after the completion of solution
Enter in the general preprocessor under ANSYS classics interface, the contact surface for extracting the contact of each sub-step in swapping process is all
The force data that node is subject to successively show that environment temperature is the pass of separating force and time at 100 DEG C, 150 DEG C ... 550 DEG C
Coefficient according to and curve, the matched curve that contact separating force changes over time at a temperature of varying environment as shown in figs. 4 and 5, connect
From plugging state to being kept completely separate, the separating force during this is being gradually reduced contact element after being gradually increased to maximum from stationary value
It is zero.
(6), the relation data and curve obtained above-mentioned steps (5) imports in Mathematica, and utilizes
The mathematical relationship of the curve matching order of Mathematica and contact pressure and separating force, electric connector contact was plugged
Separating force in journey is as X value, and contact pressure is as Y value, being electrically connected at a temperature of establishing 100 DEG C, 150 DEG C ... 550 DEG C respectively
The mathematical model of contact pressure and separating force in device contact swapping process is connect, and is conducted into display and control system 17.
(7), YF series electric connector contact a pair is chosen i.e.: a pin piece 14 and a jack part 15.
(8), electric connector contact is respectively arranged in pin piece fixture 13 and jack part fixture 16, adjustment positioning with
Clamping device 3 makes pin piece 14 and jack part 15 in vertical direction co-axially align.
(9), adjusting kinetic control system 1 and spiral regulator 10 makes pin piece 14 and jack part 15 be moved to heating dress
It sets 6 central part and makes two contacts at a distance of 3mm.
(10), to heat the temperature reached with 17 interface of control system setting heating device 6 in display is 200 DEG C, up and down
The mobile range 6.5mm, movement speed 0.3mm/s of telecontrol equipment 3.
(11), manipulating kinetic control system 1 with control system 17 by display after electric heater unit 6 is heated to 200 DEG C makes
Slowly mobile 6.5mm completes plug together movement of the pin piece 14 with jack part 15 to up and down motion device 2 upwards, controls after the completion of movement
Up and down motion, which fills 2 and moves downward, is gradually disengaged contact, while device for measuring force 8 measures the contact pressure of contact separation process
And it is shown on the interface of display and control system 17.This measures contact pressure 1.92N.
Claims (2)
1. the method that use device measures electric connector contact pressure at a temperature of varying environment, described device includes motion control system
System, up and down motion device, positioning and clamping device, heat-insulated rod chucking appliance 1#, under heat-insulated bar, heating device, heating device fixed frame,
Device for measuring force, heat-insulated rod chucking appliance 2#, spiral regulator, fixed link, upper heat-insulated bar, pin piece fixture, jack part fixture, display
With control system, bracket；Positioning is installed on above up and down motion device with clamping device；Heat-insulated rod chucking appliance 1# be mounted on positioning with
On clamping device；Under heat-insulated bar one end fixed by heat-insulated rod chucking appliance 1#, the other end install jack part fixture；It uses upper heat-insulated bar one end
In installation pin piece fixture, the other end is fixed on heat-insulated rod chucking appliance 2#, installs device for measuring force below heat-insulated rod chucking appliance 2#
Above upper heat-insulated bar；Heating device is fixed below fixed link by heating device fixed frame；Heat-insulated rod chucking appliance 2# is mounted on solid
Among fixed pole, and it can be adjusted and be moved up and down by spiral regulator；Fixed link is fixed on pedestal upper end；Kinetic control system control
The up and down motion of up and down motion device；Movement, measurement, the display of display and control system control whole device；It is characterized in that,
Specific step is as follows:
(1) electric connector contact contact shape is established according to the actual size of contact using the modeling module of simulation analysis software
Three-dimensional simulation analysis model when state；
(2) Contact simulation analysis of electric connector contact swapping process at a temperature of varying environment is carried out to the model of foundation；
(3) because only that temperature can just have an impact the contact pressure contact under high temperature environment, therefore in view of height
The environment temperature that warm electric connector is applicable in imitate for the first time in load, the identical situation of boundary condition when simulation analysis
True 100 DEG C of environment temperature of analysis setting, second 150 DEG C of device of emulation analysis environment temperature, third time device of emulation analysis ring
200 DEG C of border temperature, and so on until 10 times 550 DEG C of device of emulation analysis environment temperature；
(4) electric connector contact at a temperature of obtaining 100 DEG C, 150 DEG C ... 550 DEG C respectively by the simulation analysis of step (3)
The curve and data that separating force changes over time in swapping process are pressed by the curve matching order and contact of Mathematica
The relationship of power and separating force, using the separating force in electric connector contact swapping process as X value, contact pressure conduct
Y value, in the electric connector contact swapping process at a temperature of establishing 100 DEG C, 150 DEG C ... 550 DEG C respectively contact pressure and point
Mathematical model from power simultaneously draws matched curve；
(5) by obtained mathematical model import varying environment at a temperature of electric connector contact device for pressure measurement in display with
In control system；
(6) entire measuring device is placed on workbench, pin piece and jack part are separately fixed at pin piece fixture and inserted
In orifice fixture, adjustment positioning and clamping device are by jack part and pin piece co-axially align in the vertical direction；It is described positioning with
Clamping device is mounted on above up and down motion device, by the up and down motion of kinetic control system control up and down motion device；
(7) it adjusts up and down motion device and pin piece and jack part is moved in heating device and makes two by spiral regulator
Person is at a distance of 5~10mm；
(8) to be reached the environment temperature of measurement contact contact pressure with control system interface setting heating device in display,
The mobile speed of up and down motion device and displacement parameter are set；
(9) after thermal to be added reaches assigned temperature, making to move up and down with control system manipulation kinetic control system by display is filled
The movement that plugs together for being slowly moved to specified displacement completion pin piece and jack part upwards is set, control is transported up and down after the completion for movement
Dynamic device, which moves downward, is gradually disengaged contact, while device for measuring force measures contact pressure and the display of contact separation process
On the interface of display and control system.
2. the method as described in claim 1, it is characterised in that: the temperature range that the heating device can be heated to is at 0 DEG C
~600 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076900.XA CN106595927B (en) | 2016-11-30 | 2016-11-30 | The method and device of electric connector contact pressure at a temperature of a kind of measurement varying environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076900.XA CN106595927B (en) | 2016-11-30 | 2016-11-30 | The method and device of electric connector contact pressure at a temperature of a kind of measurement varying environment |
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| Publication Number | Publication Date |
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| CN106595927A CN106595927A (en) | 2017-04-26 |
| CN106595927B true CN106595927B (en) | 2019-05-31 |
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| CN201611076900.XA Expired - Fee Related CN106595927B (en) | 2016-11-30 | 2016-11-30 | The method and device of electric connector contact pressure at a temperature of a kind of measurement varying environment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111460698B (en) * | 2020-01-13 | 2022-11-04 | 北京邮电大学 | Passive intermodulation prediction method under stress fatigue of connector jack |
| CN111551310A (en) * | 2020-05-12 | 2020-08-18 | 苏州纳芯微电子股份有限公司 | Temperature adjusting device and calibration system with same |
| CN115980635B (en) * | 2022-12-30 | 2023-08-29 | 哈尔滨工业大学 | Method for predicting contact reliability of electric connector by considering stress relaxation |
Citations (2)
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|---|---|---|---|---|
| CN202582812U (en) * | 2012-05-14 | 2012-12-05 | 浙江理工大学 | Testing device for insertion and extraction force of contact element of electrical connector in high-temperature environment |
| CN102980704A (en) * | 2012-12-10 | 2013-03-20 | 深圳市宏之都科技有限公司 | Insertion and extraction force testing device |
-
2016
- 2016-11-30 CN CN201611076900.XA patent/CN106595927B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202582812U (en) * | 2012-05-14 | 2012-12-05 | 浙江理工大学 | Testing device for insertion and extraction force of contact element of electrical connector in high-temperature environment |
| CN102980704A (en) * | 2012-12-10 | 2013-03-20 | 深圳市宏之都科技有限公司 | Insertion and extraction force testing device |
Non-Patent Citations (2)
| Title |
|---|
| 电连接器接触件可靠性分析与高温插拔试验;靳方建;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20131215(第S2期);第54-62页 |
| 电连接器热特性和振动特性研究;蒋杰;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20161015(第10期);第15-16页 |
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