CN101308188A - Safety checking system and method when large current passing cable assembly - Google Patents
Safety checking system and method when large current passing cable assembly Download PDFInfo
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- CN101308188A CN101308188A CNA2007100178856A CN200710017885A CN101308188A CN 101308188 A CN101308188 A CN 101308188A CN A2007100178856 A CNA2007100178856 A CN A2007100178856A CN 200710017885 A CN200710017885 A CN 200710017885A CN 101308188 A CN101308188 A CN 101308188A
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- cable assembly
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- temperature meter
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Abstract
Disclosed is a safety detecting system for detecting a cable component when passing through heavy current as well as a detection method thereof, a power switch (3), an ammeter (5), a cable component (4) and a power loader (2) are connected in series and then connected to the two ends of a current source (1), a voltmeter (6) is connected with the ammeter (5) and both ends of the current source (1) in parallel, and a point temperature meter (7) is in contact with a connector shell on the cable component (4). When the current value and voltage value reach the required value, and the displayed temperature on the point temperature meter is the room temperature, the test continues for thirty minutes; if the indicated value on the point temperature meter is lower than 60DEG C of the cable component, the product is safe, if the value is higher than 60DEG C of the cable component, the product is unsafe. The detecting system of the invention has advantages of simple structure, very low cost of equipment, direct and clear testing data, and accurate and reliable data; and easy mastery of detecting operation and rather simple program. The general cable component manufacturers are able to build detecting systems by themselves totally so as to ensure the safety of products.
Description
Technical field
Security detection system and detection method thereof when the present invention relates to a kind of cable assembly by big electric current.
Background technology
Co-axial cable component is a high-frequency circuit and equipment and system applies transmission line the most widely.The major function of cable assembly is transmitting high-frequency signal and electromagnetic energy.Every the big electric current of cable assembly conducting is limited amount, above a certain amount of, because the inner wire surface current density is excessive, will puncture the peripheral support medium, causes the internal and external conductor short circuit, and then the damage connection device.Thereby work in cable assembly in the high-current circuit, and must whether have the characteristic of trouble free service through detecting it, can come into operation.
Cable assembly is to be combined by two radio frequency (RF) coaxial connectors and one section coaxial cable, cable assembly is born big current capacity, relevant with the multiple factors such as material, structure, packaging technology and environment temperature of connector, cable, very difficult definite numerical value of calculating safe through-current capacity with a kind of theory.The method of guaranteeing most is exactly to detect and verify its security and the value scope of institute's threshold currents by test.
Will be as setting up a cover high-current test system, except that price very the costliness, also need ad hoc environmental baseline and complicated operations technology, general cable assembly manufacturing plant does not possess this test condition.But some user need know that whether safe he prepare to choose certain model assembly when need be by its work of the big electric current of certain numerical value, and manufacturer must validly give definite answer, and this just test to foundation gives answer.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art security detection system and detection method thereof when a kind of economic, practical cable assembly is provided by big electric current.
Technical solution of the present invention is: the two ends of current source are inserted in power switch, reometer, cable assembly and power termination series connection back, and voltage table is connected in parallel on the two ends of reometer and current source, the connector shell contact on the some Wen Jiyu cable assembly.
Its detection method is:
1, the cable under test component string is associated between reometer and the power termination; Point temperature meter touches on the surface of cable assembly connector shell.
2, closed power switch is observed the numerical value that reometer, voltage table and some temperature meter show;
3, when current value and magnitude of voltage reach required value and put temperature meter displays temperature for room temperature, continue test 30 minutes;
4, to be lower than 60 ℃ cable assembly be safety product to temperature meter indicating value, is dangerous product and be higher than 60 ℃ cable assembly.
The present invention adopts Switching Power Supply as big current source, and the low-voltage lighting bulb is set up a loop with required value electric current by cable assembly as power termination.By the displayed value of voltage table, reometer and some temperature meter in the circuit, just know actual current value and the power of power supply output and the intensification situation of cable assembly by cable assembly.Because the cable assembly internal and external conductor all is made up of good conductor, dissipated power own is very little, even if also do not have obvious intensification by big electric current.If obviously heat up, i.e. expression has unsafe factor to exist, and also works dangerous under test current with regard to this cable of decidable.Detection system of the present invention is simple in structure, and cost of equipment is very cheap, and it is simple and clear to detect data, and data accurately and reliably; Its detecting operation is grasped easily, and program is comparatively simple.And the capable fully self-built detection system of general cable assembly manufacturer is to guarantee the security of products energy.
Description of drawings
Accompanying drawing is the structural representation of system of the present invention.
Embodiment
Detection system of the present invention as shown in drawings, the two ends of current source 1 are inserted in power switch 3, reometer 5, cable assembly 4 and power termination 2 series connection backs, voltage table 6 is connected in parallel on the two ends of reometer 5 and current source 1, and some temperature meter 7 contacts with connector shell on the cable assembly 4.
The range of said reometer 5 should be greater than current value to be measured.
The range of said voltage table 6 should be greater than the magnitude of voltage of power end.
The range of said temperature meter 7 should be greater than 200 ℃.
With after the low-voltage lighting bulb parallel connection of 4 24V, 25W as power termination 2.
Detection method of the present invention is:
1, cable under test assembly 4 is connected between reometer 5 and the power termination 2;
2, closed power switch 3 is observed the numerical value that reometer 5, voltage table 6 and some temperature meter 7 show;
3, when reaching required value and put temperature meter 7 displays temperatures for room temperature for reaching magnitude of voltage, current value continues to test 30 minutes;
4, be lower than 60 ℃ cable assembly 4 as temperature meter 7 indicating value and be safety product, the cable assembly 4 that is higher than 60 ℃ then is dangerous product.
Embodiment: existing long with a 50cm, No. 2.5 cable two ends attaching SMA series connector is an example by the 4A electric current, is described as follows:
1. the Switching Power Supply of choosing a 24V voltage, maximum possible output 4.5A is as current source 1.
2. the low-voltage lighting bulb parallel connection of selecting 4 24V, 25W for use is as power termination 2.
3. press the accompanying drawing connecting circuit, the position that power switch 3 places out, the case surface of some temperature meter 7 contacts SMA connector on cable assembly 4.
4. closed power switch 3 is observed reometer 5, voltage table 6, warm 7 the demonstration numerical value of counting of point.
5. as electric current ≈ 4A, voltage ≈ 24V when point temperature meter 7 displays temperatures are room temperature, continues test 30 minutes.Very little as each value fluctuation, deenergization 3 finishes test.Conclusion: this cable assembly is very safe by the 4A current work
6. during when the continuous rising of indicating value of some temperature meter 7 and greater than 60 ℃, disconnecting power switch 3 finishes test.Conclusion: this cable assembly is dangerous by the 4A current work.
Claims (5)
- Security detection system when 1, a kind of cable assembly is by big electric current, the two ends that it is characterized in that power switch (3), reometer (5), cable assembly (4) and power termination (2) series connection back access current source (1), voltage table (6) is connected in parallel on the two ends of reometer (5) and current source (1), and some temperature meter (7) contacts with connector shell on the cable assembly (4).
- Security detection system when 2, cable assembly as claimed in claim 1 is by big electric current, the range that it is characterized in that said reometer (5) is greater than current value to be measured.
- Security detection system when 3, cable assembly as claimed in claim 1 is by big electric current is characterized in that the magnitude of voltage of the range of said voltage table (6) greater than power end.
- Security detection system when 4, cable assembly as claimed in claim 1 is by big electric current, the range that it is characterized in that said temperature meter (7) is greater than 200 ℃.
- 5, a kind of application according to claim 1 system to cable assembly the detection method of security during by big electric current, it is characterized in that:5.1, cable under test assembly (4) is connected between reometer (5) and the power termination (2);5.2, closed power switch (3), observe the numerical value of reometer (5), voltage table (6) and some temperature meter (7) demonstration;5.3, when current value and magnitude of voltage reach required value and put temperature meter (7) displays temperature for room temperature, continue test 30 minutes;5.4, some temperature meter (7) indicating value is lower than 60 ℃ cable assembly (4) and is safety product, is dangerous product and be higher than 60 ℃ cable assembly (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100178856A CN101308188A (en) | 2007-05-18 | 2007-05-18 | Safety checking system and method when large current passing cable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100178856A CN101308188A (en) | 2007-05-18 | 2007-05-18 | Safety checking system and method when large current passing cable assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101308188A true CN101308188A (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100178856A Pending CN101308188A (en) | 2007-05-18 | 2007-05-18 | Safety checking system and method when large current passing cable assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101308188A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687030A (en) * | 2010-01-25 | 2012-09-19 | 美国能量变换公司 | Electrical connection quality detection |
-
2007
- 2007-05-18 CN CNA2007100178856A patent/CN101308188A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687030A (en) * | 2010-01-25 | 2012-09-19 | 美国能量变换公司 | Electrical connection quality detection |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081119 |