CN103197219A - Wire cable sine wave high frequency spark test circuit and wire cable sine wave high frequency spark test machine - Google Patents
Wire cable sine wave high frequency spark test circuit and wire cable sine wave high frequency spark test machine Download PDFInfo
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- CN103197219A CN103197219A CN2013101117179A CN201310111717A CN103197219A CN 103197219 A CN103197219 A CN 103197219A CN 2013101117179 A CN2013101117179 A CN 2013101117179A CN 201310111717 A CN201310111717 A CN 201310111717A CN 103197219 A CN103197219 A CN 103197219A
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- Testing Relating To Insulation (AREA)
Abstract
The invention provides a wire cable sine wave high frequency spark test circuit and a wire cable sine wave high frequency spark test machine. The wire cable sine wave high frequency spark test circuit comprises a switching power supply, a voltage control circuit, an oscillation circuit, a high voltage transformer, a high-pass filter and a fault detection circuit, wherein the switching power supply is used for providing working voltage for the test circuit, the voltage control circuit is used for maintaining stability of output test voltage, the oscillation circuit is used for producing a sine wave oscillation circuit, the high voltage transformer is used for enabling the outputted test voltage to reach 0-15KVAC, the high-pass filter is used for detecting feedback signals of the high voltage transformer, the fault detection circuit is used for comparing amplitudes of signals in front of the high-pass filter and signals behind the high-pass filter and sending sound signals or optical signals to alarm. The circuit is applied to the high frequency spark test machine, can be used for rapid and reliable detection of pinholes and scratching of conductors of various electric wires and cables, and electric conductors cannot be damaged.
Description
Technical field
The present invention relates to circuit field, refer to the sinusoidal wave high-frequency spark test circuit of a kind of cable and test machine especially.
Background technology
Cable and insulated conductor must possess dielectric strength and the dielectric strength of regulation for the safety of using, so for the enterprise that produces cable and insulated conductor, whether obligated to detect the cable surface insulation by means of testing tool good, and the high-frequency spark testing machine namely is a kind of rapid and reliable testing tool, can be used in order to the pin hole that detects all kinds of electric wire and cable conductors and the high precision instrument that breaks skin.Existing most traditional spark tester detection speed is slower, and sensitivity is not high.
Summary of the invention
The present invention proposes the sinusoidal wave high-frequency spark test circuit of a kind of cable and test machine, has solved the not enough and not high problem of sensitivity of prior art medium-high frequency spark machine detection speed.
Technical scheme of the present invention is achieved in that
The sinusoidal wave high-frequency spark test circuit of a kind of cable, it comprises:
Switched power supplier is for the operating voltage that test circuit is provided;
Voltage control circuit is connected with described switched power supplier, is used for keeping the stable of output test voltage;
Oscillating circuit is connected with described voltage control circuit, for generation of sinusoidal wave oscillating circuit;
High-tension transformer is connected with described oscillating circuit, makes the test voltage of output reach 0-15KVAC;
Hi-pass filter is connected with described high-tension transformer, for detection of the feedback signal of described high-tension transformer;
Fault detection circuit is connected with described Hi-pass filter, is used for comparison through the signal magnitude before and after the described Hi-pass filter, and sends acoustical signal or light alarm.
Preferably, it comprises that further parameter arranges module, and described parameter arranges module and is connected with voltage control circuit with described switched power supplier.
Preferably, described parameter arranges module and comprises that mode of operation arranges button and Hi-pot test safety switch button.
Preferably, it further comprises display circuit, and described display circuit arranges module with described voltage control circuit with described parameter and is connected, and is used for the test voltage of display setting.
Preferably, it is A/D converter that described display circuit adopts ICL7107, adopts HDSP-5501 as digital pipe driving chip.
Preferably, described switched power supplier comprises first Switching Power Supply and second switch power supply, described first Switching Power Supply is given described voltage control circuit, Hi-pass filter, fault detection circuit and display circuit power supply, and described second switch power supply is to described oscillating circuit and high-tension transformer power supply.
The present invention also proposes the sinusoidal wave high-frequency spark test machine of a kind of cable, and its inside is provided with the sinusoidal wave high-frequency spark test circuit of described cable.
Preferably, it is divided into and shows control box and two casings of Hi-pot test electrode case.
Circuit of the present invention can be applicable on the high-frequency spark testing machine, so that all kinds of electric wire and cable conductors of rapid and reliable detection and pin hole and broken skin.It can detect the conductor defective fast and can not destroy electric conductor.Use high frequency (3KHz) high-tension electricity cartridge to replace tradition (50/60Hz) supply frequency high-tension electricity cartridge, can make its electrode tip size dwindle about 50 times, and have higher sensitivity when detecting.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit module connection diagram of high-frequency spark test circuit of the present invention;
Fig. 2 is the control box circuit theory diagrams of high-frequency spark test circuit preferred embodiment of the present invention;
Fig. 3 is the electrode case circuit theory diagrams of high-frequency spark test circuit preferred embodiment of the present invention;
Fig. 4 is the display circuit schematic diagram of high-frequency spark test circuit preferred embodiment of the present invention;
Fig. 5 is the oscillating circuit schematic diagram of high-frequency spark test circuit preferred embodiment of the present invention;
Fig. 6 is the circuit module figure on the preferred embodiment of the present invention main circuit board.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As Fig. 1-shown in Figure 6, the sinusoidal wave high-frequency spark test circuit of cable of the present invention comprises:
Switched power supplier is for the operating voltage that test circuit is provided;
Voltage control circuit is connected with described switched power supplier, is used for keeping the stable of output test voltage;
Oscillating circuit is connected with described voltage control circuit, for generation of sinusoidal wave oscillating circuit;
High-tension transformer is connected with described oscillating circuit, makes the test voltage of output reach 0-15KVAC;
Hi-pass filter is connected with described high-tension transformer, for detection of the feedback signal of described high-tension transformer;
Fault detection circuit is connected with described Hi-pass filter, is used for comparison through the signal magnitude before and after the described Hi-pass filter, and sends acoustical signal or light alarm.
This circuit application during use, also is provided with parameter module is set, be i.e. spark machine READY module shown in Fig. 1 on the sinusoidal wave high-frequency spark testing machine of cable on testing machine.Described parameter arranges module and is connected with voltage control circuit with described switched power supplier, this parameter arranges module and comprises that mode of operation arranges button and Hi-pot test safety switch button, described mode of operation comprises the automatic or manual pattern, when described Hi-pot test safety switch is opened, namely close the output testing high voltage.
The present invention also further comprises display circuit, and described display circuit arranges module with described voltage control circuit (being the P.I.D voltage control circuit among Fig. 1) with described parameter and is connected, and is used for the test voltage of display setting.As Fig. 2 and shown in Figure 4, it is A/D converter that this display circuit adopts ICL7107, adopts HDSP-5501 as digital pipe driving chip, the JP1 terminals in the JP1 terminals connection layout 2 among Fig. 4 on the display circuit board, and be connected with JP10 on the main circuit board.Because ICL7107 is that A/D converter and chip HDSP-5501 all have prior art, its pin function and can not repeat them here referring to its databook with reference to mode of connection.
As shown in Figure 2, in this preferred embodiment, described switched power supplier comprises first Switching Power Supply and second switch power supply, described first Switching Power Supply is connected with the JP4 terminals of main circuit board through behind the switch, gives described voltage control circuit, Hi-pass filter, fault detection circuit and display circuit power supply; Described second switch power supply is connected with the JP11 terminals of main circuit board, to described oscillating circuit and high-tension transformer power supply.
Described oscillating circuit as shown in Figure 5, the synthetic concussion of this circuit and high-tension transformer loop, the JP2 terminals of main circuit board in the JP2 terminals connection layout 2 among Fig. 5, thereby oscillating circuit plate and main circuit board are coupled together.Also be provided with the 12P signal connector on the oscillating circuit plate among Fig. 2, this 12P signal connector is connected with 12P signal connector among Fig. 3, thereby the oscillating circuit plate is connected with high-tension transformer, is used for oscillator signal being transported to high-tension transformer and the feedback signal of high-tension transformer being fetched.Have fault to be when spark tester detects cable, the alarm lamp among Fig. 3 is then pointed out warning, is convenient to the user and in time does respective handling.
The sinusoidal wave high-frequency spark test machine of the cable of built-in circuit can be divided into two casings: show control box and Hi-pot test electrode case, certainly, also can be designed to all-in-one according to demand.Be divided into two casings in the preferred embodiment of the present invention, Fig. 2 is and shows the control box circuit diagram, and wherein the connection terminal 1 in left side is used for the relay signal contact output when test detects cable fault, generally can be used to do interlock control with client's apparatus for production line; The connection terminal 2 of its below is used for the warning warning lamp on the control test electrode casing as the 9th pin, when detecting cable fault, sends alarm signal.Fig. 3 namely is electrode case circuit theory diagrams, adopts high frequency oscillation signal testing cable fault.
Wherein the circuit module figure on the main circuit board as shown in Figure 6, its JP1 pin is connected with the oscillating circuit plate, be used for to receive the feedback signal behind the high frequency oscillation input cable, in order to judge whether to exist electric cable stoppage.Export failure detector circuit to behind the result's process high-pass filtering circuit (being the Hi-pass filter among Fig. 1) that detects, and by various ways such as relay, digital counter, panel warning light prompting testing results.The parameters such as current/voltage of test can be by the high-frequency rectification circuit adjustment, and shows that by high pressure correcting output circuit exports display circuit board to and show.The sensitivity that detects can be by the high-pass filtering circuit adjustment, and the delay time of warning is by the failure detector circuit adjustment, its switch, reset signal, waits and sets and can adjust by spark machine READY circuit manually or automatically.
Spark machine READY circuit also is connected with a test voltage and set adjusts circuit, by the whether eligible startup of this circuit judges spark machine test voltage; Test voltage is set and is adjusted actual maximum output test voltage and the maximum output power that circuit also can be regulated spark machine by interface JP9, and this interface JP9 picks out by an interface board in Fig. 2; Test voltage set to be adjusted circuit and also is used for receiving the high-tension transformer feedback signal, and according to this feedback signal control PID voltage control circuit (being the P.I.D voltage control circuit among Fig. 1) and oscillation drive circuit by the interface JP2 output drive signal on the main circuit board to oscillating circuit board.
The above only is preferred embodiment of the present invention; not in order to limit the present invention; especially illustrated switched power supplier; voltage control circuit; oscillating circuit; high-tension transformer; Hi-pass filter; circuit modules such as fault detection circuit; as long as can reach and illustrated embodiment and description identical functions; and the circuit structure and the components and parts that are not limited among the figure make up; those skilled in the art can understand these circuit and also can form by other circuit elements device or module combinations; so it is within the spirit and principles in the present invention all; any modification of doing; be equal to replacement; improve etc., all should be included within protection scope of the present invention.
Claims (8)
1. the sinusoidal wave high-frequency spark test circuit of a cable is characterized in that it comprises:
Switched power supplier is for the operating voltage that test circuit is provided;
Voltage control circuit is connected with described switched power supplier, is used for keeping the stable of output test voltage;
Oscillating circuit is connected with described voltage control circuit, for generation of sinusoidal wave oscillating circuit;
High-tension transformer is connected with described oscillating circuit, makes the test voltage of output reach 0-15KVAC;
Hi-pass filter is connected with described high-tension transformer, for detection of the feedback signal of described high-tension transformer;
Fault detection circuit is connected with described Hi-pass filter, is used for comparison through the signal magnitude before and after the described Hi-pass filter, and sends acoustical signal or light alarm.
2. the sinusoidal wave high-frequency spark test circuit of cable as claimed in claim 1 is characterized in that it comprises that further parameter arranges module, and described parameter arranges module and is connected with voltage control circuit with described switched power supplier.
3. the sinusoidal wave high-frequency spark test circuit of cable as claimed in claim 2 is characterized in that described parameter arranges module and comprises that mode of operation arranges button and Hi-pot test safety switch button.
4. the sinusoidal wave high-frequency spark test circuit of cable as claimed in claim 3 is characterized in that it further comprises display circuit, and described display circuit arranges module with described voltage control circuit with described parameter and is connected, and is used for the test voltage of display setting.
5. the sinusoidal wave high-frequency spark test circuit of cable as claimed in claim 4 is characterized in that it is A/D converter that described display circuit adopts ICL7107, adopts HDSP-5501 as digital pipe driving chip.
6. the sinusoidal wave high-frequency spark test circuit of cable as claimed in claim 4, it is characterized in that, described switched power supplier comprises first Switching Power Supply and second switch power supply, described first Switching Power Supply is given described voltage control circuit, Hi-pass filter, fault detection circuit and display circuit power supply, and described second switch power supply is to described oscillating circuit and high-tension transformer power supply.
7. the sinusoidal wave high-frequency spark test machine of cable is characterized in that, its inside is provided with the sinusoidal wave high-frequency spark test circuit of each cable among the claim 1-6.
8. the sinusoidal wave high-frequency spark test machine of cable as claimed in claim 7 is characterized in that, it is divided into and shows control box and two casings of Hi-pot test electrode case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111717.9A CN103197219B (en) | 2013-04-01 | 2013-04-01 | A kind of cable sine wave high-frequency spark test circuit and test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111717.9A CN103197219B (en) | 2013-04-01 | 2013-04-01 | A kind of cable sine wave high-frequency spark test circuit and test machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103197219A true CN103197219A (en) | 2013-07-10 |
| CN103197219B CN103197219B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310111717.9A Expired - Fee Related CN103197219B (en) | 2013-04-01 | 2013-04-01 | A kind of cable sine wave high-frequency spark test circuit and test machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302904A (en) * | 1991-10-29 | 1994-04-12 | Zumbach Electronic Ag | Method of detecting insulation faults and spark tester for implementing the method |
| CN2209406Y (en) * | 1993-12-05 | 1995-10-04 | 吴祥华 | Main frequency electrostatic high-voltage generator |
| CN2896052Y (en) * | 2005-11-02 | 2007-05-02 | 郑春阳 | Electric-arc lighter |
| CN200979967Y (en) * | 2006-12-01 | 2007-11-21 | 于光 | A highly integrated air anion generator |
| CN101526579A (en) * | 2008-03-04 | 2009-09-09 | 上海欧勒测控系统有限公司 | Power frequency spark tester |
| CN203204118U (en) * | 2013-04-01 | 2013-09-18 | 东莞市和而泰电子科技有限公司 | Cable sine wave high frequency spark test circuit and test machine |
-
2013
- 2013-04-01 CN CN201310111717.9A patent/CN103197219B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302904A (en) * | 1991-10-29 | 1994-04-12 | Zumbach Electronic Ag | Method of detecting insulation faults and spark tester for implementing the method |
| CN2209406Y (en) * | 1993-12-05 | 1995-10-04 | 吴祥华 | Main frequency electrostatic high-voltage generator |
| CN2896052Y (en) * | 2005-11-02 | 2007-05-02 | 郑春阳 | Electric-arc lighter |
| CN200979967Y (en) * | 2006-12-01 | 2007-11-21 | 于光 | A highly integrated air anion generator |
| CN101526579A (en) * | 2008-03-04 | 2009-09-09 | 上海欧勒测控系统有限公司 | Power frequency spark tester |
| CN203204118U (en) * | 2013-04-01 | 2013-09-18 | 东莞市和而泰电子科技有限公司 | Cable sine wave high frequency spark test circuit and test machine |
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| Publication number | Publication date |
|---|---|
| CN103197219B (en) | 2015-11-18 |
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