CN108761248A - A kind of cable pressure connection terminal temperature-rise test device and method - Google Patents
A kind of cable pressure connection terminal temperature-rise test device and method Download PDFInfo
- Publication number
- CN108761248A CN108761248A CN201810797682.1A CN201810797682A CN108761248A CN 108761248 A CN108761248 A CN 108761248A CN 201810797682 A CN201810797682 A CN 201810797682A CN 108761248 A CN108761248 A CN 108761248A
- Authority
- CN
- China
- Prior art keywords
- temperature
- connection terminal
- pressure
- cable
- alternating current
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention discloses a kind of cable pressure connection terminal temperature-rise test device and method, device include：It is the first predeterminated voltage that control system, which controls the voltage pressure regulation that the first pressure regulator exports AC power,；It is the second predeterminated voltage that the second pressure regulator, which is also controlled, by the first predeterminated voltage pressure regulation；Alternating current generator is for exporting alternating current；Current measurement circuit measures the alternating current of alternating current generator output, and alternating current is sent to control system；Alternating current is compared by control system with predetermined current, and controlling the second pressure regulator according to comparison result carries out voltage adjusting, so that alternating current is consistent with predetermined current；Temperature measurement circuit flows through pressure connection terminal temperature when alternating current for measuring environment temperature and cable pressure connection terminal；Control system obtains the temperature difference of environment temperature and pressure connection terminal temperature.The device includes two-stage pressure-regulating device, first carries out coarse adjustment, then carry out fine tuning, improves the degree of regulation of voltage, and then the accurate electric current of acquisition is accurate, the Wen Shengcai of acquisition is accurate.
Description
Technical field
The present invention relates to technical field of electric equipment more particularly to a kind of cable pressure connection terminal temperature-rise test device and sides
Method.
Background technology
With the birth of high-speed EMUs and the raising to the requirement of its safe mass, to electrically crimping Joining Technology examination
It is proposed requirements at the higher level are tested, in order to improve the reliability of electrical crimping interconnection technique.Wherein, for lifting process technology and safety
Requirement is then in terms of quality：Carry out cable pressure connection terminal temperature rise test.
Currently, temperature rise test first passes through pressure regulator adjusting voltage and by current lifting device output test electric current, then by pincerlike electric current
Table measures test current, finally thermocouple method is used to be measured into trip temperature.
In temperature rise test, since the degree of regulation of pressure regulator is relatively low, cause electric current that cannot be exactly adjusted to a certain solid
Definite value；Also due to the accuracy of measurement of clamp on amperemeter is low, leading to the temperature measured, there are errors；Due also to the liter of temperature
High and output loop power consumption increase needs to maintain electric current constant by manual adjustment pressure regulator after causing output current to change,
But there are errors for the manual adjustment being perceptually adjusted, and are based on the above reason, cause the error of the temperature rise test excessive.
In addition, measured into trip temperature by manual single-point using thermocouple method in temperature rise test, the manual measurement method
Measuring speed is slower, and working efficiency is relatively low, can not meet the demand of manufacturing schedule.
Invention content
In order to solve the technical problems existing in the prior art, the present invention provides a kind of cable pressure connection terminal temperature rise test dress
It sets and method, can realize temperature rise test precise and high efficiency.
The present invention provides a kind of cable pressure connection terminal temperature-rise test device, including：First pressure regulator, is handed over the second pressure regulator
Galvanic electricity flow-generator, current measurement circuit, control system and temperature measurement circuit；
The input terminal of first pressure regulator connects AC power, the input terminal connection described first of second pressure regulator
The output end of pressure regulator；The degree of regulation of second pressure regulator is more than the degree of regulation of first pressure regulator；
The control system is first for controlling the voltage pressure regulation that first pressure regulator exports the AC power
Predeterminated voltage；It is additionally operable to control second pressure regulator by the first predeterminated voltage pressure regulation to be the second predeterminated voltage；
The input terminal of the alternating current generator connects the output end of second pressure regulator, for exporting alternating current
Stream；
The current measurement circuit, the alternating current for measuring the alternating current generator output, by the exchange
Electric current is sent to the control system；
The control system controls institute for being compared with predetermined current the alternating current according to comparison result
It states the second pressure regulator and carries out voltage adjusting, so that the alternating current is consistent with the predetermined current；
The temperature measurement circuit flows through the crimping when alternating current for measuring environment temperature and cable pressure connection terminal
Hold temperature；
The control system, the temperature difference for obtaining the environment temperature and pressure connection terminal temperature.
Preferably, the control system is additionally operable to determine the diameter of cable, determines that described first is pre- according to the diameter
If voltage, the second predeterminated voltage and predetermined current.
Preferably, the temperature measurement circuit, for measuring the crimping when cable pressure connection terminal flows through the alternating current
Temperature is held, specially：
The second temperature of the first temperature and second end of the cable pressure connection terminal first end is measured, first temperature is obtained
Degree and the average value of second temperature flow through the pressure connection terminal temperature when alternating current as the cable pressure connection terminal.
Preferably, the temperature measurement circuit includes：Multi-channel thermocouple circuit；
Thermocouple circuit described in per road corresponds to a cable；The diameter of the corresponding cable of thermocouple circuit described in per road
All same.
Preferably, further include：Regulator circuit；
The regulator circuit is connected between the power supply and the first pressure regulator, the voltage for exporting the power supply into
Input terminal of the output to first pressure regulator after row voltage stabilizing.
Preferably, first pressure regulator and second pressure regulator are step voltage regulation device.
Preferably, the control system includes man-machine interactive interface；
The man-machine interactive interface, the input of input and predetermined current for receiving cable linear diameter, the cable
Diameter and the predetermined current correspond；
The man-machine interactive interface is additionally operable to show the temperature difference.
Preferably, further include：Battery main switch；
The battery main switch is connected between the power supply and first pressure regulator；
When the device works, the battery main switch is closed, otherwise is disconnected.
Preferably, the current measurement circuit is current transformer or Hall sensor.
The present invention also provides a kind of methods of measurement cable pressure connection terminal Wen Sheng, are applied to devices discussed above, including：
It is the first predeterminated voltage to control the voltage pressure regulation that first pressure regulator exports the AC power；Described in control
The first predeterminated voltage pressure regulation is the second predeterminated voltage by the second pressure regulator；
The alternating current for measuring the alternating current generator output, the alternating current is compared with predetermined current
Compared with according to comparison result control the second pressure regulator progress voltage adjusting, so that the alternating current and the predetermined current
Unanimously；
Measuring environment temperature and cable pressure connection terminal flow through the pressure connection terminal temperature when alternating current；
Obtain the temperature difference of the environment temperature and pressure connection terminal temperature.
Compared with prior art, the present invention has at least the following advantages：
Cable pressure connection terminal temperature-rise test device provided by the present application includes：First pressure regulator, the second pressure regulator, alternating current
Flow-generator, current measurement circuit, control system and temperature measurement circuit；The input terminal of first pressure regulator connects AC power,
The input terminal of second pressure regulator connects the output end of first pressure regulator；The degree of regulation of second pressure regulator is more than
The degree of regulation of first pressure regulator；The control system, it is for controlling first pressure regulator that the AC power is defeated
The voltage pressure regulation gone out is the first predeterminated voltage；It is the to be additionally operable to control second pressure regulator by the first predeterminated voltage pressure regulation
Two predeterminated voltages；The input terminal of the alternating current generator connects the output end of second pressure regulator, for exporting exchange
Electric current；The current measurement circuit, the alternating current for measuring the alternating current generator output, by the alternating current
It is sent to the control system；The control system, for the alternating current to be compared with predetermined current, according to comparing
Second pressure regulator described in output control carries out voltage adjusting, so that the alternating current is consistent with the predetermined current；The survey
Circuit temperature flows through the pressure connection terminal temperature when alternating current for measuring environment temperature and cable pressure connection terminal；The control
System processed, the temperature difference for obtaining the environment temperature and pressure connection terminal temperature.
The device includes two-stage pressure-regulating device, and the first pressure regulator carries out coarse adjustment, second the first pressure regulator of pressure regulator pair to voltage
The voltage of output carries out fine tuning again, to improve the degree of regulation of voltage, since the effect of alternating current generator is by voltage
Electric current is converted to, therefore when voltage is accurate, alternating current generator can export accurate electric current due to cable pressure connection terminal
Wen Sheng obtain corresponding temperature when being electric current corresponding by the cable linear diameter, therefore, only electric current is accurate, the temperature of acquisition
It rises just accurate.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram for the cable pressure connection terminal temperature-rise test device that the embodiment of the present application one provides；
Fig. 2 is temperature measurement circuit structural schematic diagram provided by the embodiments of the present application；
Fig. 3 is the structural schematic diagram for the cable pressure connection terminal temperature-rise test device that the embodiment of the present application two provides；
Fig. 4 is the structural schematic diagram for the cable pressure connection terminal temperature-rise test device that the embodiment of the present application three provides；
Fig. 5 is the flow chart of the method for measurement cable pressure connection terminal Wen Sheng provided by the embodiments of the present application.
Specific implementation mode
As the birth of high-speed EMUs then needs to improve the reliability of electrical crimping interconnection technique to cable pressure
It connects end and carries out temperature rise test.
Wen Sheng refers to the difference that temperature when electric current reaches thermal balance by conductor on conductor is higher by environment temperature.Due to logical
The conductor of electric current will produce heating effect of current, and over time, the temperature of conductive surface constantly rises, flat when reaching heat
When weighing apparatus, the temperature and environment temperature of conductor are measured, the difference of the two is the Wen Sheng of the conductor.Wherein, the unit of temperature is to take the photograph
The unit of family name's degree (DEG C), Wen Sheng is Kelvin (K).However, the condition that conductor temperature is stablized is different according to the requirement of accuracy of measurement
And concrete regulation.For example, the standard of domestic accuracy of measurement provides as follows：It refers to when heating value was surveyed every 10 minutes to stablize temperature value
Amount is primary, continuous to measure 3 times, steady when temperature reaches thermal balance when each temperature value is not much different in the temperature value of 1 degree Kelvin
Definite value.The temperature of conductive surface is measured at this time, thus the stabilization temperature value of conductor.
Currently, temperature rise test first passes through pressure regulator adjusting voltage and by current lifting device output test electric current, then by pincerlike electric current
Table measures test current, finally thermocouple method is used to be measured into trip temperature.
But inventor has found, above-mentioned temperature-rise test device has the following deficiencies：
In temperature rise test, since the degree of regulation of pressure regulator is relatively low, cause electric current that cannot be exactly adjusted to a certain solid
Definite value, but make the electric current adjusted that there is positive and negative several amperes of error；Also due to the accuracy of measurement of clamp on amperemeter is relatively low,
Up to 1.5 grades, leading to the temperature measured, there are errors；Due also to the raising of temperature and the increasing of output loop power consumption
Greatly, cause output current to change, since the change cannot compensate automatically, electric current can only be maintained permanent by manual adjustment pressure regulator
It is fixed, but there are errors for the manual adjustment being perceptually adjusted, and are based on the above reason, lead to the error mistake of the temperature rise test
Greatly.
To solve the above-mentioned problems, the embodiment of the present application provides a kind of cable pressure connection terminal temperature-rise test device and includes：
First pressure regulator, the second pressure regulator, alternating current generator, current measurement circuit, control system and temperature measurement circuit；Described first
The input terminal of pressure regulator connects AC power, and the input terminal of second pressure regulator connects the output end of first pressure regulator；
The degree of regulation of second pressure regulator is more than the degree of regulation of first pressure regulator；The control system, for controlling
It is the first predeterminated voltage to state the voltage pressure regulation that the first pressure regulator exports the AC power；It is additionally operable to control second pressure regulation
The first predeterminated voltage pressure regulation is the second predeterminated voltage by device；The input terminal connection described second of the alternating current generator
The output end of pressure regulator, for exporting alternating current；The current measurement circuit, it is defeated for measuring the alternating current generator
The alternating current is sent to the control system by the alternating current gone out；The control system is used for the alternating current
It is compared with predetermined current, controlling second pressure regulator according to comparison result carries out voltage adjusting, so that the alternating current
Stream is consistent with the predetermined current；The temperature measurement circuit flows through the friendship for measuring environment temperature and cable pressure connection terminal
Pressure connection terminal temperature when galvanic electricity stream；The control system, the temperature difference for obtaining the environment temperature and pressure connection terminal temperature.
The device includes two-stage pressure-regulating device, and the first pressure regulator carries out coarse adjustment, second the first pressure regulator of pressure regulator pair to voltage
The voltage of output carries out fine tuning again, to improve the degree of regulation of voltage, since the effect of alternating current generator is by voltage
Electric current is converted to, therefore when voltage is accurate, alternating current generator can export accurate electric current due to cable pressure connection terminal
Wen Sheng obtain corresponding temperature when being electric current corresponding by the cable linear diameter, therefore, only electric current is accurate, the temperature of acquisition
It rises just accurate.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Embodiment one：
Referring to Fig. 1, which is the structural representation for the cable pressure connection terminal temperature-rise test device that the embodiment of the present application one provides
Figure.
Cable pressure connection terminal temperature-rise test device provided by the embodiments of the present application, including：First pressure regulator 101, second is adjusted
Depressor 102, alternating current generator 103, current measurement circuit 104, control system 105 and temperature measurement circuit 106；
The input terminal of first pressure regulator 101 connects AC power, and the input terminal of second pressure regulator 102 connects institute
State the output end of the first pressure regulator 101；The degree of regulation of second pressure regulator 102 is more than the tune of first pressure regulator 101
Save precision；
Wherein, AC power is alternating current, such as Chinese alternating current is alternating current 220V.
First pressure regulator 101 is realized for realizing the coarse adjustment to supply voltage, the second pressure regulator 102 to the first pressure regulator
The fine tuning of 101 output voltages, after the adjusting of two step voltages, it is ensured that the voltage of the offer of alternating current generator 103
Precision is very high.The control system 105, the voltage tune for exporting the AC power for controlling first pressure regulator 101
Pressure is the first predeterminated voltage；It is second to preset to be additionally operable to control second pressure regulator 102 by the first predeterminated voltage pressure regulation
Voltage；
It should be noted that when the diameter difference of cable, the electric current difference needed when temperature rises is measured, it is therefore, corresponding
First pressure regulator 101 and the voltage of the second pressure regulator 102 output are also different.
The input terminal of the alternating current generator 103 connects the output end of second pressure regulator 102, is handed over for exporting
Galvanic electricity stream；
The current measurement circuit 104, the alternating current exported for measuring the alternating current generator 103, by institute
It states alternating current and is sent to the control system 105；
The control system 105 is controlled for being compared with predetermined current the alternating current according to comparison result
Second pressure regulator 102 carries out voltage adjusting, so that the alternating current is consistent with the predetermined current；
Current measurement circuit 104 and control system 105 realize closed loop feedback control, it is therefore an objective to make alternating current generator
The alternating current of 103 outputs is consistent with the predetermined current.
The temperature measurement circuit 106, when flowing through the alternating current for measuring environment temperature and cable pressure connection terminal
Pressure connection terminal temperature；
The control system 105, the temperature difference for obtaining the environment temperature and pressure connection terminal temperature.
The cable pressure connection terminal is by will produce heating effect of current, over time, conductive surface after electric current
Temperature constantly rises, until stablizing, temperature is the stabilization temperature value of cable pressure connection terminal at this time.
Referring to table 1, which is the temperature change table for the cable pressure connection terminal that the embodiment of the present application one provides.
For example, cable pressure connection terminal measures a temperature, and temperature change such as 1 institute of table in 60 minutes for every 10 minutes after being powered
Show.By the data in table 1 it is found that after cable pressure connection terminal energization 40min, cable pressure connection terminal reaches stable temperature value 40
℃。
| Time | 10min | 20min | 30min | 40min | 50min | 60min |
| Temperature | 30℃ | 35℃ | 38℃ | 39.7℃ | 40℃ | 40.1℃ |
Cable pressure connection terminal Wen Sheng refers to after cable pressure connection terminal is powered, and cable pressure connection terminal stablizes temperature value and is higher by environment
Temperature, i.e. cable pressure connection terminal Wen Sheng=stabilization temperature value-environment temperature.For example, after cable pressure connection terminal is powered, cable pressure
It is 40 DEG C to connect end to stablize temperature value, and environment temperature is 25 DEG C, then cable pressure connection terminal temperature is upgraded to 15K.
First pressure regulator 101 and the second pressure regulator 102 can adjust the voltage in load, but the second pressure regulator 102
Degree of regulation is more than 101 degree of regulation of the first pressure regulator, thus passes through the series connection of the first pressure regulator 101 and the second pressure regulator 102
It uses, the degree of regulation of pressure regulator can be turned up.
For example, when the first pressure regulator 101 degree of regulation be ± 2A, and the degree of regulation of the second pressure regulator 102 be ±
0.1A then needs the electric current that 400A is provided to cable pressure connection terminal, wherein pass through in cable pressure connection terminal temperature-rise test device
When adjusting the first pressure regulator 101, it is 398A to make the control that the device provides, however, making this by adjusting the second pressure regulator 102 again
The current control that device provides is 400A.
In order to improve the degree of regulation of the first pressure regulator 101 and the second pressure regulator 102, first pressure regulator 101 and institute
It is step voltage regulation device to state the second pressure regulator 102.
Current measurement circuit 104 is used to measure alternating current, thus, current measurement circuit 104 can be surveyed to be various
Measure the circuit of alternating current.For example, the current measurement circuit 104 is current transformer or Hall sensor.
In order to propose high temperature rise circuit measuring accuracy, the temperature at pressure connection terminal multiple spot can be measured, these points pair are then sought
Temperature of the average value for the temperature answered as the pressure connection terminal.It is illustrated for measuring the temperature at pressure connection terminal two below, when
The number of measuring temperature is not limited in right the embodiment of the present application specifically.
The temperature measurement circuit 106, for measuring the pressure connection terminal temperature when cable pressure connection terminal flows through the alternating current
Degree, specially：
The second temperature of the first temperature and second end of the cable pressure connection terminal first end is measured, first temperature is obtained
Degree and the average value of second temperature flow through the pressure connection terminal temperature when alternating current as the cable pressure connection terminal.
Technical solution provided by the present application is more fully understood in order to facilitate description and those skilled in the art, it below will be with
The temperature of cable pressure connection terminal illustrates for measuring in Fig. 2.
Referring to Fig. 2, which is 106 structural schematic diagram of temperature measurement circuit provided by the embodiments of the present application.
The first temperature that first temperature measurement circuit 1061 measures cable pressure connection terminal first end is T1, and the second temperature measurement circuit
1062 second temperatures for measuring cable pressure connection terminal second end are T2, then the temperature of cable pressure connection terminal is (T1+T2)/2.
The concrete function of control system 105 is as follows：
(1) control system 105, the diameter for determining cable determine that described first is default according to the diameter
Voltage, the second predeterminated voltage and predetermined current.
First predeterminated voltage is to adjust the electricity that the first pressure regulator 101 reaches when carrying out cable pressure connection terminal temperature rise test
Pressure value；
Second predeterminated voltage is to adjust the electricity that the second pressure regulator 102 reaches when carrying out cable pressure connection terminal temperature rise test
Pressure value；
Predetermined current be when carrying out cable pressure connection terminal temperature rise test, cable by current value.
When due to carrying out cable pressure connection terminal temperature rise test, the cable of different-diameter passes through different current values.Thus,
When cable pressure connection terminal temperature-rise test device works, it is necessary first to which control system 105 determines the diameter of cable, then root again
Pre-set current value is determined according to the diameter of cable, and then determines that 101 corresponding first predeterminated voltage of the first pressure regulator and second is adjusted
102 corresponding second predeterminated voltage of depressor.
(2) control system 105, the voltage for exporting the AC power for controlling first pressure regulator 101
Pressure regulation is the first predeterminated voltage；It is additionally operable to control second pressure regulator 102 by the first predeterminated voltage pressure regulation to be second pre-
If voltage；
When cable pressure connection terminal temperature-rise test device works, first is determined according to cable linear diameter in control system 105
After predeterminated voltage, the second predeterminated voltage and predetermined current, control system 105 will control the first pressure regulator 101, it is made to be adjusted to
First predeterminated voltage；Meanwhile control system 105 will also control the second pressure regulator 102, it is made to be adjusted to the second predeterminated voltage, this
When, which will provide predetermined current for cable pressure connection terminal.
(3) control system 105, for the alternating current to be compared with predetermined current, according to comparison result
It controls second pressure regulator 102 and carries out voltage adjusting, so that the alternating current is consistent with the predetermined current；
Due to the increase of raising and output loop power consumption with temperature, output current is caused to fluctuate, thus, it is
The stability of output current is kept, control system 105 will first compare the alternating current and predetermined current of output, when the friendship of output
When galvanic electricity stream is not equal to predetermined current, then control system 105 will control the second pressure regulator 102 and carry out voltage adjusting, until exchange
Control of the finishing control system 105 to the second pressure regulator 102 when electric current is equal to predetermined current.
(4) control system 105, the temperature difference for obtaining the environment temperature and pressure connection terminal temperature.
After the environment temperature of acquisition and pressure connection terminal temperature are sent to control system 105 by temperature measurement circuit 106, control system
105 will utilize temperature to rise calculation formula：Wen Sheng=pressure connection terminal temperature-environment temperature, obtains Wen Sheng.
The course of work of cable pressure connection terminal temperature-rise test device provided by the present application is as follows：
First, control system 105 determines the diameter of cable, and determines pre-set current value according to the diameter of cable, into
And determine 101 corresponding first predeterminated voltage of the first pressure regulator and 102 corresponding second predeterminated voltage of the second pressure regulator.
Secondly, the first pressure regulator 101 is adjusted to the first predeterminated voltage under the control of control system 105；Meanwhile second adjusts
Depressor 102 is adjusted to the second predeterminated voltage under the control of control system 105.
Then, alternating current generator 103 exports predetermined current according to 102 output voltage of the second pressure regulator of input, should
Predetermined current passes through cable pressure connection terminal.
Meanwhile current measurement circuit 104 measures the output current of alternating current generator 103, and by the alternating current of acquisition
Stream is sent to control system 105.
Then, control system 105 will first compare the alternating current and predetermined current of output, when the alternating current of output differs
When predetermined current, then control system 105 will control the second pressure regulator 102 and carry out voltage adjusting, until alternating current is equal in advance
If control of the finishing control system 105 to the second pressure regulator 102 when electric current.
Meanwhile temperature measurement circuit 106 acquires crimping when environment temperature and cable pressure connection terminal flow through the alternating current
Temperature is held, and the environment temperature of acquisition and pressure connection terminal temperature are sent to control system 105.
Finally, control system 105 will utilize temperature to rise calculation formula：Wen Sheng=pressure connection terminal temperature-environment temperature, obtains temperature
It rises.
Cable pressure connection terminal temperature-rise test device provided by the present application includes：First pressure regulator 101, the second pressure regulator 102,
Alternating current generator 103, current measurement circuit 104, control system 105 and temperature measurement circuit 106；However, the device passes through
The series connection of one pressure regulator 101 and the second pressure regulator 102 improves the voltage regulation accuracy of pressure regulator, realizes that output current can be accurate
Ground is adjusted to a certain fixed value；The second pressure regulator 102 is controlled also by control system 105, realizes outputting current steadily output；Also
By temperature measurement circuit 106, realizes and automatically and accurately measured into trip temperature.
Based on the cable pressure connection terminal temperature-rise test device that above example provides, in order to improve cable pressure connection terminal Wen Sheng
The efficiency of experiment, the embodiment of the present application provide a kind of cable pressure connection terminal temperature-rise test device, carry out below in conjunction with the accompanying drawings detailed
It describes in detail bright.
Embodiment two：
Referring to Fig. 3, which is the structural representation for the cable pressure connection terminal temperature-rise test device that the embodiment of the present application two provides
Figure.
Cable pressure connection terminal temperature-rise test device provided by the present application includes：First pressure regulator, the second pressure regulator, alternating current
Flow-generator, current measurement circuit, control system and temperature measurement circuit；
Wherein, the first pressure regulator, the second pressure regulator, alternating current generator, current measurement circuit, control system and thermometric
Connection relation and related content content corresponding with embodiment one between circuit is identical, and details are not described herein.
However, the temperature measurement circuit includes：Multi-channel thermocouple circuit；
Thermocouple circuit described in per road corresponds to a cable；The diameter of the corresponding cable of thermocouple circuit described in per road
All same.
When due to carrying out cable pressure connection terminal temperature rise test, the cable of different-diameter passes through different current values.Thus,
The work of cable pressure connection terminal temperature-rise test device can carry out temperature rise test to the cable pressure connection terminal of multiple same diameters simultaneously.
The course of work of cable pressure connection terminal temperature-rise test device provided by the present application is as follows：
First, control system 105 determines the diameter of cable, and determines pre-set current value according to the diameter of cable, into
And determine 101 corresponding first predeterminated voltage of the first pressure regulator and 102 corresponding second predeterminated voltage of the second pressure regulator.
Secondly, the first pressure regulator 101 is adjusted to the first predeterminated voltage under the control of control system 105；Meanwhile second adjusts
Depressor 102 is adjusted to the second predeterminated voltage under the control of control system 105.
Then, alternating current generator 103 exports predetermined current according to 102 output voltage of the second pressure regulator of input, should
Predetermined current passes through cable pressure connection terminal.
Meanwhile current measurement circuit 104 measures the output current of alternating current generator 103, and by the alternating current of acquisition
Stream is sent to control system 105.
Then, control system 105 will first compare the alternating current and predetermined current of output, when the alternating current of output differs
When predetermined current, then control system 105 will control the second pressure regulator 102 and carry out voltage adjusting, until alternating current is equal in advance
If control of the finishing control system 105 to the second pressure regulator 102 when electric current.
Meanwhile third temperature measurement circuit 1063 acquires environment temperature and the first cable pressure connection terminal flows through the alternating current
When pressure connection terminal temperature, and the environment temperature of acquisition and the first cable pressure connection terminal temperature are sent to control system 105.And
4th temperature measurement circuit 1064 acquisition environment temperature and the second cable pressure connection terminal flow through the pressure connection terminal temperature when alternating current
Degree, and the environment temperature of acquisition and the second cable pressure connection terminal temperature are sent to control system 105
Finally, control system 105 will utilize the first cable pressure connection terminal temperature to rise calculation formula：First cable pressure connection terminal temperature
The=the first cable pressure connection terminal end temperature-environment temperature is risen, the first cable pressure connection terminal Wen Sheng is obtained；Meanwhile control system 105
The second cable pressure connection terminal temperature will be utilized to rise calculation formula：The second cable pressure connection terminal cable pressure connection terminals of Wen Sheng=second end temperature
Degree-environment temperature obtains the second cable pressure connection terminal Wen Sheng.
Temperature measurement circuit includes described in cable pressure connection terminal temperature-rise test device provided by the embodiments of the present application：Multichannel thermoelectricity
Even circuit；Thermocouple circuit described in per road corresponds to a cable；The diameter of the corresponding cable of thermocouple circuit described in per road
All same.The device can carry out temperature rise test to the cable pressure connection terminal of multiple same diameters simultaneously, improve work efficiency.
Based on a kind of cable pressure connection terminal temperature-rise test device that above example provides, in order to further increase cable
The stability of pressure connection terminal temperature-rise test device output current, the embodiment of the present application provide a kind of cable pressure connection terminal temperature rise test
Device is described in detail below in conjunction with the accompanying drawings.
Embodiment three：
Referring to Fig. 4, which is the structural representation for the cable pressure connection terminal temperature-rise test device that the embodiment of the present application three provides
Figure.
Cable pressure connection terminal temperature-rise test device provided by the embodiments of the present application includes：First pressure regulator 101, the second pressure regulation
Device 102, alternating current generator 103, current measurement circuit 104, control system 105, temperature measurement circuit 106,401 and of regulator circuit
Battery main switch S1；
The regulator circuit 401 is connected between the power supply and the first pressure regulator 101, for export the power supply
Voltage exports after carrying out voltage stabilizing to the input terminal of first pressure regulator 101.
The battery main switch S1 is connected between the power supply and first pressure regulator 101；
When the device works, the battery main switch S1 is closed, otherwise is disconnected.
Wherein, the first pressure regulator 101, the second pressure regulator 102, alternating current generator 103, current measurement circuit 104, control
Connection relation and related content content corresponding with embodiment one between system 105 processed and temperature measurement circuit 106 is identical, herein
It repeats no more.
In order to improve the flexibility of cable pressure connection terminal temperature-rise test device, the control system 105 includes human-computer interaction
Interface；
The man-machine interactive interface, the input of input and predetermined current for receiving cable linear diameter, the cable
Diameter and the predetermined current correspond；
The man-machine interactive interface is additionally operable to show the temperature difference.
The course of work of cable pressure connection terminal temperature-rise test device provided by the present application is as follows：
First, it is closed battery main switch S1 so that AC power starts to power for cable pressure connection terminal temperature-rise test device.
Secondly, output is to first pressure regulator 101 after the voltage that regulator circuit 401 exports AC power carries out voltage stabilizing
Input terminal.
Then, testing crew by man-machine interactive interface to 105 input cable linear diameter of control system and predetermined current.
Meanwhile control system 105 determines the first pressure regulator 101 corresponding according to the diameter and pre-set current value of cable
102 corresponding second predeterminated voltage of one predeterminated voltage and the second pressure regulator.
Secondly, the first pressure regulator 101 is adjusted to the first predeterminated voltage under the control of control system 105；Meanwhile second adjusts
Depressor 102 is adjusted to the second predeterminated voltage under the control of control system 105.
Then, alternating current generator 103 exports predetermined current according to 102 output voltage of the second pressure regulator of input, should
Predetermined current passes through cable pressure connection terminal.
Meanwhile current measurement circuit 104 measures the output current of alternating current generator 103, and by the alternating current of acquisition
Stream is sent to control system 105.
Then, control system 105 will first compare the alternating current and predetermined current of output, when the alternating current of output differs
When predetermined current, then control system 105 will control the second pressure regulator 102 and carry out voltage adjusting, until alternating current is equal in advance
If control of the finishing control system 105 to the second pressure regulator 102 when electric current.
Meanwhile temperature measurement circuit 106 acquires crimping when environment temperature and cable pressure connection terminal flow through the alternating current
Temperature is held, and the environment temperature of acquisition and pressure connection terminal temperature are sent to control system 105.
Finally, control system 105 will utilize temperature to rise calculation formula：Wen Sheng=pressure connection terminal temperature-environment temperature, obtains temperature
It rises, man-machine interactive interface is used in combination to show Wen Sheng.
Cable pressure connection terminal temperature-rise test device provided by the present application further includes：Regulator circuit and battery main switch；It is described
Regulator circuit is connected between the power supply and the first pressure regulator, and the voltage for exporting the power supply exports after carrying out voltage stabilizing
To the input terminal of first pressure regulator.The battery main switch is connected between the power supply and first pressure regulator；Institute
It includes man-machine interactive interface to state control system；The man-machine interactive interface, the input for receiving cable linear diameter and default electricity
The input of stream, the cable linear diameter and the predetermined current correspond；The man-machine interactive interface, is additionally operable to described in display
The temperature difference.When the device works, the battery main switch is closed, otherwise is disconnected.The device is further increased by regulator circuit
The stability of cable pressure connection terminal temperature-rise test device output current；It is real by controlling disconnection and the closure of battery main switch
The working condition of flexible control cable pressure connection terminal temperature-rise test device is showed；By man-machine interactive interface, raising is improved
The flexibility of cable pressure connection terminal temperature-rise test device also allows for testing convenient for being manually entered cable linear diameter and predetermined current
Personnel obtain Wen Sheng.
Based on the cable pressure connection terminal temperature-rise test device that above example provides, the embodiment of the present application provides a kind of survey
The method for measuring cable pressure connection terminal Wen Sheng, is described in detail below in conjunction with the accompanying drawings.
Example IV：
Referring to Fig. 5, which is the flow chart of the method for measurement cable pressure connection terminal Wen Sheng provided by the embodiments of the present application.
The method provided by the embodiments of the present application for measuring cable pressure connection terminal Wen Sheng is applied to embodiment one to embodiment three
The cable pressure connection terminal temperature-rise test device of offer, including：
S501：It is the first predeterminated voltage to control the voltage pressure regulation that first pressure regulator exports the AC power；Control
It is the second predeterminated voltage that second pressure regulator, which is made, by the first predeterminated voltage pressure regulation；
S502：The alternating current for measuring alternating current generator output, by the alternating current and predetermined current into
It goes and compares, controlling second pressure regulator according to comparison result carries out voltage adjusting, so that the alternating current is preset with described
Electric current is consistent；
S503：Measuring environment temperature and cable pressure connection terminal flow through the pressure connection terminal temperature when alternating current；
S504：Obtain the temperature difference of the environment temperature and pressure connection terminal temperature.
The method provided by the embodiments of the present application for measuring cable pressure connection terminal Wen Sheng is applied to embodiment one to embodiment three
The cable pressure connection terminal temperature-rise test device of offer, including：Control the electricity that first pressure regulator exports the AC power
Pressure pressure regulation is the first predeterminated voltage；It is the second predeterminated voltage that second pressure regulator, which is controlled, by the first predeterminated voltage pressure regulation；
The alternating current for measuring alternating current generator output, the alternating current is compared with predetermined current, according to than
Voltage adjusting is carried out compared with the second pressure regulator described in output control, so that the alternating current is consistent with the predetermined current；It measures
Environment temperature and cable pressure connection terminal flow through the pressure connection terminal temperature when alternating current；Obtain the environment temperature and crimping
Hold the temperature difference of temperature.However, this method improves the electricity of pressure regulator by the voltage of control the first pressure regulator and the second pressure regulator point
Degree of regulation is pressed, realizes that output current can be exactly adjusted to a certain fixed value；Also by according to alternating current and predetermined current
Comparison result control the second pressure regulator, make alternating current be equal to predetermined current, realize outputting current steadily output；Also pass through survey
Amount environment temperature and cable pressure connection terminal flow through the pressure connection terminal temperature when alternating current, in order to obtain cable wire crimp
Hold Wen Sheng.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical solution makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent
Variation and modification, still fall within technical solution of the present invention protection in the range of.
Claims (10)
1. a kind of cable pressure connection terminal temperature-rise test device, which is characterized in that including：First pressure regulator, the second pressure regulator, exchange
Current feedback circuit, current measurement circuit, control system and temperature measurement circuit；
The input terminal of first pressure regulator connects AC power, and the input terminal of second pressure regulator connects first pressure regulation
The output end of device；The degree of regulation of second pressure regulator is more than the degree of regulation of first pressure regulator；
The control system presets the voltage pressure regulation that the AC power exports for first for controlling first pressure regulator
Voltage；It is additionally operable to control second pressure regulator by the first predeterminated voltage pressure regulation to be the second predeterminated voltage；
The input terminal of the alternating current generator connects the output end of second pressure regulator, for exporting alternating current；
The current measurement circuit, the alternating current for measuring the alternating current generator output, by the alternating current
It is sent to the control system；
The control system, for the alternating current to be compared with predetermined current, according to comparison result control described the
Two pressure regulators carry out voltage adjusting, so that the alternating current is consistent with the predetermined current；
The temperature measurement circuit flows through the pressure connection terminal temperature when alternating current for measuring environment temperature and cable pressure connection terminal
Degree；
The control system, the temperature difference for obtaining the environment temperature and pressure connection terminal temperature.
2. cable pressure connection terminal temperature-rise test device according to claim 1, which is characterized in that the control system, also
Diameter for determining cable determines first predeterminated voltage, the second predeterminated voltage and predetermined current according to the diameter.
3. cable pressure connection terminal temperature-rise test device according to claim 1, which is characterized in that the temperature measurement circuit is used
Pressure connection terminal temperature when measuring the cable pressure connection terminal and flowing through the alternating current, specially：
Measure the second temperature of the first temperature and second end of the cable pressure connection terminal first end, obtain first temperature and
The average value of second temperature flows through the pressure connection terminal temperature when alternating current as the cable pressure connection terminal.
4. cable pressure connection terminal temperature-rise test device according to claim 2, which is characterized in that the temperature measurement circuit packet
It includes：Multi-channel thermocouple circuit；
Thermocouple circuit described in per road corresponds to a cable；The diameter of the corresponding cable of thermocouple circuit described in per road is homogeneous
Together.
5. according to claim 1-4 any one of them cable pressure connection terminal temperature-rise test devices, which is characterized in that further include：
Regulator circuit；
The regulator circuit is connected between the power supply and the first pressure regulator, and the voltage for exporting the power supply carries out steady
Input terminal of the output to first pressure regulator after pressure.
6. according to claim 1-4 any one of them cable pressure connection terminal temperature-rise test devices, which is characterized in that described first
Pressure regulator and second pressure regulator are step voltage regulation device.
7. cable pressure connection terminal temperature-rise test device according to claim 1, which is characterized in that the control system includes
Man-machine interactive interface；
The man-machine interactive interface, the input of input and predetermined current for receiving cable linear diameter, the cable linear diameter
It is corresponded with the predetermined current；
The man-machine interactive interface is additionally operable to show the temperature difference.
8. cable pressure connection terminal temperature-rise test device according to claim 1, which is characterized in that further include：Power supply is always opened
It closes；
The battery main switch is connected between the power supply and first pressure regulator；
When the device works, the battery main switch is closed, otherwise is disconnected.
9. cable pressure connection terminal temperature-rise test device according to claim 1, which is characterized in that the current measurement circuit
For current transformer or Hall sensor.
10. a kind of method measuring cable pressure connection terminal Wen Sheng, which is characterized in that be applied to described in claim any one of 1-9
Device, including：
It is the first predeterminated voltage to control the voltage pressure regulation that first pressure regulator exports the AC power；Control described second
The first predeterminated voltage pressure regulation is the second predeterminated voltage by pressure regulator；
The alternating current for measuring the alternating current generator output, the alternating current is compared with predetermined current, root
Second pressure regulator is controlled according to comparison result and carries out voltage adjusting, so that the alternating current is consistent with the predetermined current；
Measuring environment temperature and cable pressure connection terminal flow through the pressure connection terminal temperature when alternating current；
Obtain the temperature difference of the environment temperature and pressure connection terminal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797682.1A CN108761248A (en) | 2018-07-19 | 2018-07-19 | A kind of cable pressure connection terminal temperature-rise test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797682.1A CN108761248A (en) | 2018-07-19 | 2018-07-19 | A kind of cable pressure connection terminal temperature-rise test device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108761248A true CN108761248A (en) | 2018-11-06 |
Family
ID=63970828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810797682.1A Pending CN108761248A (en) | 2018-07-19 | 2018-07-19 | A kind of cable pressure connection terminal temperature-rise test device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108761248A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375044A (en) * | 2018-12-12 | 2019-02-22 | 上海奥波电子有限公司 | The method and system of quality are electrically connected between a kind of detection conductor |
| CN115421082A (en) * | 2022-09-01 | 2022-12-02 | 华能国际电力股份有限公司河北清洁能源分公司 | Device and method for testing crimping state of hardware fitting and cable conductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5791684A (en) * | 1980-11-27 | 1982-06-07 | Toshiba Corp | Method and apparatus for equivalent load test for commutatorless motor device |
| CN1033417A (en) * | 1988-12-05 | 1989-06-14 | 沈阳市产品质量监督检验所 | The electric apparatus temperature rise automatic detection device |
| CN202120080U (en) * | 2011-07-06 | 2012-01-18 | 天津市电力公司 | Transformer temperature rise automatic measurement and control system |
| CN202171625U (en) * | 2011-08-01 | 2012-03-21 | 浙江方圆电气设备检测有限公司 | Current stabilization apparatus for AC temperature rise test |
| CN106997013A (en) * | 2017-05-16 | 2017-08-01 | 中车洛阳机车有限公司 | A kind of temperature rise experimental method of cable crimping point and crimping armor clamp |
-
2018
- 2018-07-19 CN CN201810797682.1A patent/CN108761248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5791684A (en) * | 1980-11-27 | 1982-06-07 | Toshiba Corp | Method and apparatus for equivalent load test for commutatorless motor device |
| CN1033417A (en) * | 1988-12-05 | 1989-06-14 | 沈阳市产品质量监督检验所 | The electric apparatus temperature rise automatic detection device |
| CN202120080U (en) * | 2011-07-06 | 2012-01-18 | 天津市电力公司 | Transformer temperature rise automatic measurement and control system |
| CN202171625U (en) * | 2011-08-01 | 2012-03-21 | 浙江方圆电气设备检测有限公司 | Current stabilization apparatus for AC temperature rise test |
| CN106997013A (en) * | 2017-05-16 | 2017-08-01 | 中车洛阳机车有限公司 | A kind of temperature rise experimental method of cable crimping point and crimping armor clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375044A (en) * | 2018-12-12 | 2019-02-22 | 上海奥波电子有限公司 | The method and system of quality are electrically connected between a kind of detection conductor |
| CN115421082A (en) * | 2022-09-01 | 2022-12-02 | 华能国际电力股份有限公司河北清洁能源分公司 | Device and method for testing crimping state of hardware fitting and cable conductor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102435894B (en) | Digital leakage protector tester and test method thereof | |
| CN103149471A (en) | Calibration method and calibration device for battery charger and charging pile | |
| CN108181544B (en) | Device and method for measuring leakage current and insulation resistance of electric connector | |
| CN102998644B (en) | Calibration system for direct current resistance tester | |
| CN208188173U (en) | A kind of CC E-load | |
| CN104682520B (en) | A kind of electric vehicle alternating-current charging attachment means with gauge check port | |
| CN108761248A (en) | A kind of cable pressure connection terminal temperature-rise test device and method | |
| US20210320502A1 (en) | Grid interconnection device and server | |
| CN101867213A (en) | A kind of battery charger | |
| CN106298408B (en) | A kind of control method and system improving magnetron output power stability | |
| CN207817124U (en) | A kind of electric connector leakage current and insulation resistance measuring device | |
| CN111880009B (en) | Medium-voltage fuse melt resistance accurate measurement circuit and measurement method thereof | |
| CN110138295A (en) | A kind of method and system measuring self-shunt excitation system voltage control loop static state amplification factor | |
| CN112526383A (en) | Automatic calibration device and calibration method for alternating current/direct current stabilized power supply | |
| CN103081346A (en) | Generator set calibration controller | |
| CN108872916A (en) | A kind of optical current mutual inductor correction of temperature drift test method and device | |
| CN204241568U (en) | 500KV DC Resistance of Transformer and direct current degaussing tester | |
| CN108387782B (en) | The electric bridge experimental measurement method of ground wire and preformed armor rods contact port contact resistance | |
| CN204166076U (en) | A kind of Multifunction silicon controlled tester being applied to big current rectifying installation | |
| CN111537932B (en) | System and method for establishing ultralow frequency voltage standard and realizing magnitude transmission | |
| CN201060232Y (en) | current mutual inductor testing apparatus for intelligent electrical apparatus release | |
| CN113049639A (en) | Distribution transformer winding material testing system and method | |
| CN109212455A (en) | A kind of method and system for verifying power supply type voltage transformer power winding voltages stability | |
| CN111398673A (en) | Power prediction device for low-voltage water resistance | |
| CN213457334U (en) | DC stabilized power supply calibration test tool and calibration system |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |