CN202177674U - Intelligent testing apparatus used for cabinet air conditioner half-practicality imitation test system - Google Patents
Intelligent testing apparatus used for cabinet air conditioner half-practicality imitation test system Download PDFInfo
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- CN202177674U CN202177674U CN2011202372208U CN201120237220U CN202177674U CN 202177674 U CN202177674 U CN 202177674U CN 2011202372208 U CN2011202372208 U CN 2011202372208U CN 201120237220 U CN201120237220 U CN 201120237220U CN 202177674 U CN202177674 U CN 202177674U
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Abstract
The utility model provides an intelligent testing apparatus used for a cabinet air conditioner half-practicality imitation test system. A work current detection circuit and a leakage current detection circuit are in connection with a one-chip microcomputer circuit; a voltage detection circuit is respectively in connection with an electric control plate to be tested and the one-chip microcomputer circuit; a multipath relay detection circuit is respectively in connection with the electric control plate to be tested and an imitation electronic switching circuit; the imitation electronic switching circuit is in connection with the one-chip microcomputer circuit; a precision over-zero signal detection circuit is respectively in connection with the electric control plate to be tested and the one-chip microcomputer circuit; a 485 communication circuit is respectively in connection with the one-chip microcomputer circuit and a monitoring computer; an energy storage capacitance discharge circuit is in connection with the one-chip microcomputer circuit; a relay drive circuit is respectively in connection with the one-chip microcomputer circuit and the electric control plate to be tested; a leakage protection output circuit is respectively in connection with the one-chip microcomputer circuit and the electric control plate to be tested; a power supply circuit provides voltage for the above circuits. According to the utility model, dynamic test processes of electric control plates can be realized.
Description
Technical field
The utility model relates to the testing apparatus technical field, refers in particular to the intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner.
Background technology
Convention in the industry; The automatically controlled plate on-line testing method that electron trade is traditional is after automatically controlled plate to be measured (Target Board) is connected to test board through connector; Energising detects the key job point voltage again; And relay adhesive situation, show through pilot lamp, instrument whether the corresponding work state is normal.This method of testing is simple in structure, and is with low cost, is easy to make.But this test mode accuracy existing problems, reason are connectors is prone to loose contact, display result also exist erroneous judgement maybe, can not detect whether adhesion of relay tip; Simultaneously, in testing process, like test man's misoperation, electric shock accidents might take place, jeopardize personal safety.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art; Provide safer; The intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner more reliable, with better function, this multifunctional intellectual proving installation can be realized the line dynamic test of automatically controlled plate.
For realizing above-mentioned purpose; The technical scheme that the utility model provided is: the intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner; It includes power circuit, working current testing circuit, leakage current detection circuit, voltage detecting circuit, multicircuit relay testing circuit, accurate zero cross signal testing circuit, analog electronic switching circuit, single chip circuit, storage capacitor discharge circuit, relay drive circuit, earth leakage protection output circuit, 485 telecommunication circuits, control power supply; Wherein, The supply lines of control power supply provides working power for automatically controlled plate to be measured through working current testing circuit and leakage current detection circuit, and the output terminal of working current testing circuit and leakage current detection circuit is connected with single chip circuit; The input end of voltage detecting circuit is connected with the voltage test points of automatically controlled plate to be measured, and its output terminal is connected with single chip circuit; The input end of multicircuit relay testing circuit is connected with the relay contact of automatically controlled plate to be measured, and the input end of its output terminal and analog electronic switching circuit is connected, and the output terminal of analog electronic switching circuit is connected to single chip circuit; The input end of accurate zero cross signal testing circuit is connected with automatically controlled plate to be measured, and its output terminal is connected with single chip circuit; The input end of 485 telecommunication circuits is connected with single chip circuit, and its output terminal is connected to monitoring computer; The storage capacitor discharge circuit is connected with single chip circuit; The input end of relay drive circuit is connected with single chip circuit, and its output terminal is connected with automatically controlled plate to be measured; The input end of earth leakage protection output circuit is connected with single chip circuit, and its output terminal is connected with automatically controlled plate to be measured; Power circuit is that above each circuit provides WV.
Described Hall current sensor adopts U27 and two kinds of models of U25, and wherein, U27 is used for detecting interchange 12V working current; Its 7 pin is for detecting current input terminal; Its 8 pin is for detecting current output terminal, and its 1 pin is connected in-the 12V power supply, and its 2 pin is connected in power supply ground; Its 3 pin is connected in+the 12V power supply, and its 4 pin is a voltage signal output end; U25 is used to detect electric current between the alternating current 220V plate, and its 7 pin is for detecting current input terminal, and its 8 pin is for detecting current output terminal, and its 1 pin is connected in-the 220V power supply, and its 2 pin is connected in power supply ground, and its 3 pin is connected in+the 220V power supply, and its 4 pin is a voltage signal output end.
The model of described Hall leakage current sensor is U26; Wherein, the 220V power lead penetrates from the feedthrough hole of Hall leakage current sensor, and 2 pin of this Hall leakage current sensor are connected in+the 12V power supply; Its 3 pin is connected in-the 12V power supply, and its 1 pin is a current signal output end.
Described isolation signals amplifier module adopts U30 and two kinds of models of U33; Wherein, Described isolation signals amplifier module essence is a DC-DC Switching Power Supply translation circuit; 1,2 pin are the test signal voltage input end, and 4,5 pin are the back work power supply, and 8,11 pin are the signal voltage output terminal.
The utility model is after having adopted such scheme; Its great advantage is that the utility model is to utilize the characteristic of direct current signal isolated amplifier module, Hall current sensor, Hall leakage current sensor module to realize the dynamic test process of automatically controlled plate fundamentally solving the drawback that the traditional test mode exists.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model.
Fig. 2 is the schematic diagram of the utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is described further.
Shown in accompanying drawing 1 and accompanying drawing 2; The preferred embodiment of the utility model includes power circuit 1, working current testing circuit 2, leakage current detection circuit 3, voltage detecting circuit 4, multicircuit relay testing circuit 5, accurate zero cross signal testing circuit 6, analog electronic switching circuit 7, single chip circuit 8, storage capacitor discharge circuit 9, relay drive circuit 10, earth leakage protection output circuit 11,485 telecommunication circuits 12, control power supply 14; Wherein, The supply lines of control power supply 14 provides working power for automatically controlled plate 13 to be measured through working current testing circuit 2 and leakage current detection circuit 3, and the output terminal of working current testing circuit 2 and leakage current detection circuit 3 is connected with single chip circuit 8; The input end of voltage detecting circuit 4 is connected with the voltage test points of automatically controlled plate 13 to be measured, and its output terminal is connected with single chip circuit 8; The input end of multicircuit relay testing circuit 5 is connected with the relay contact of automatically controlled plate 13 to be measured, and its output terminal is connected with the input end of analog electronic switching circuit 7, and the output terminal of analog electronic switching circuit 7 is connected to single chip circuit 8; The input end of accurate zero cross signal testing circuit 6 is connected with automatically controlled plate 13 to be measured, and its output terminal is connected with single chip circuit 8; The input end of 485 telecommunication circuits 12 is connected with single chip circuit 8, and its output terminal is connected to monitoring computer; Storage capacitor discharge circuit 9 is connected with single chip circuit 8; The input end of relay drive circuit 10 is connected with single chip circuit 8, and its output terminal is connected with automatically controlled plate 13 to be measured; The input end of earth leakage protection output circuit 11 is connected with single chip circuit 8, and its output terminal is connected with automatically controlled plate 13 to be measured; Power circuit 1 provides WV for above each circuit.
The utility model utilizes the characteristic of direct current signal isolated amplifier module, Hall current sensor, Hall leakage current sensor module to realize; Wherein, Described direct current signal isolated amplifier module need not external potentiometer or other elements, exempts from zero point and gain-adjusted, and its signal adopts magneto-electric coupled isolation method; Its power supply, signal 3000VDC three isolate, and can realize mutual isolation, amplification and conversion between input signal and the output signal; Described Hall current sensor can will be bigger the AC and DC current signal convert less d. c. voltage signal into, need not external potentiometer or other elements, exempt from zero point and gain-adjusted, have the 2000VAC isolation voltage simultaneously; Described Hall leakage current sensor is a leakage current sensor of new generation of using magnetic modulation and zero magnetic flux principle; Its measurement range is wide, perforation structure does not have that to insert loss, high sensitivity, overload capacity strong; System detects small leakage current, can cut off the electricity supply immediately, guarantees personal safety; Can adopt 485 telecommunication circuits to be connected, realize intelligent remote control with PC.
Described Hall current sensor adopts U27 and two kinds of models of U25, and wherein, U27 is used for detecting interchange 12V working current; Its 7 pin is for detecting current input terminal; Its 8 pin is for detecting current output terminal, and its 1 pin is connected in-the 12V power supply, and its 2 pin is connected in power supply ground; Its 3 pin is connected in+the 12V power supply, and its 4 pin is a voltage signal output end; U25 is used to detect electric current between the alternating current 220V plate, and its 7 pin is for detecting current input terminal, and its 8 pin is for detecting current output terminal, and its 1 pin is connected in-the 220V power supply, and its 2 pin is connected in power supply ground, and its 3 pin is connected in+the 220V power supply, and its 4 pin is a voltage signal output end.When being alternating current, output end signal is an alternating voltage, after bridge rectifier filtering, exports direct-flow signal voltage when elementary, and this voltage and input current are linearly proportional, deliver to the I/O mouth of single-chip microcomputer then, the read current value.
The model of described Hall leakage current sensor is U26; Wherein, the 220V power lead penetrates from the feedthrough hole of Hall leakage current sensor, and 2 pin of this Hall leakage current sensor are connected in+the 12V power supply; Its 3 pin is connected in-the 12V power supply, and its 1 pin is a current signal output end.When not having electric leakage, the output of 1 pin spacing current, like the 220V electric leakage, then elementary generation out-of-balance current, after internal insulation was amplified, the output AC electric current through capacitive coupling, was sent into single chip circuit behind the diode direct-current.
Described isolation signals amplifier module adopts U30 and two kinds of models of U33, and wherein, described isolation signals amplifier module essence is a DC-DC Switching Power Supply translation circuit; 1,2 pin are the test signal voltage input end, and 4,5 pin are the back work power supply, and 8,11 pin are the signal voltage output terminal; Directly import single chip circuit, output voltage and input voltage are the linear ratio relations, after isolating conversion; Improved the security and the reliability of circuit, antijamming capability is strong.
The workflow of the utility model patent is: automatically controlled plate 13 to be measured is placed on the test position of proving installation; The handle that closes is again pressed power switch, and the control power supply gets; Proving installation and automatically controlled plate to be measured power on; Open the main interface of monitoring computer testing software, press testing button, monitoring computer is given single chip circuit 8 through 485 telecommunication circuits 12 of proving installation with test instruction; Single chip circuit 8 is carried out the test run program, and working current testing circuit 2, leakage current detection circuit 3 and voltage detecting circuit 4 are delivered to single chip circuit 8 with test data and handled; Single chip circuit 8 output orders control the relay adhesive on the automatically controlled plate to be measured for relay drive circuit 10 then, and multicircuit relay testing circuit 5 is delivered to single chip circuit 8 with relay contact adhesive signal through analog electronic switching circuit 7 and handled; Accurate zero cross signal testing circuit 6 detects on the automatically controlled plate to be measured the alternating current zero cross signal and after shaping is amplified, delivers to single chip circuit 8; Single chip circuit 8 is transported to monitoring computer with test data through 485 telecommunication circuits 12 and shows test results.After test was accomplished, storage capacitor discharge circuit 9 fell the surplus tele-release of the power filtering capacitor of automatically controlled plate to be measured.When single chip circuit 8 detected system's electric leakage, output order cut off control power supply 14 then to earth leakage protection output circuit 11 and reaches the protection purpose.
The embodiment of the above is the preferred embodiment of the utility model only, is not the practical range that limits the utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection domain of the utility model.
Claims (4)
1. the intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner; It is characterized in that: it includes power circuit (1), working current testing circuit (2), leakage current detection circuit (3), voltage detecting circuit (4), multicircuit relay testing circuit (5), accurate zero cross signal testing circuit (6), analog electronic switching circuit (7), single chip circuit (8), storage capacitor discharge circuit (9), relay drive circuit (10), earth leakage protection output circuit (11), 485 telecommunication circuits (12), control power supply (14); Wherein, The supply lines of control power supply (14) provides working power for automatically controlled plate to be measured (13) through working current testing circuit (2) and leakage current detection circuit (3), and the output terminal of working current testing circuit (2) and leakage current detection circuit (3) is connected with single chip circuit (8); The input end of voltage detecting circuit (4) is connected with the voltage test points of automatically controlled plate to be measured (13), and its output terminal is connected with single chip circuit (8); The input end of multicircuit relay testing circuit (5) is connected with the relay contact of automatically controlled plate to be measured (13); Its output terminal is connected with the input end of analog electronic switching circuit (7), and the output terminal of analog electronic switching circuit (7) is connected to single chip circuit (8); Accurate zero cross signal testing circuit (6), input end be connected with automatically controlled plate to be measured (13), its output terminal is connected with single chip circuit (8); The input end of 485 telecommunication circuits (12) is connected with single chip circuit (8), and its output terminal is connected to monitoring computer; Storage capacitor discharge circuit (9) is connected with single chip circuit (8); The input end of relay drive circuit (10) is connected with single chip circuit (8), and its output terminal is connected with automatically controlled plate to be measured (13); The input end of earth leakage protection output circuit (11) is connected with single chip circuit (8), and its output terminal is connected with automatically controlled plate to be measured (13); Power circuit (1) provides WV for above each circuit.
2. the intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner according to claim 1 is characterized in that: described Hall current sensor adopts U27 and two kinds of models of U25, wherein; U27 is used for detecting interchange 12V working current, and its 7 pin is for detecting current input terminal, and its 8 pin is for detecting current output terminal; Its 1 pin is connected in-the 12V power supply; Its 2 pin is connected in power supply ground, and its 3 pin is connected in+the 12V power supply, and its 4 pin is a voltage signal output end; U25 is used to detect electric current between the alternating current 220V plate, and its 7 pin is for detecting current input terminal, and its 8 pin is for detecting current output terminal, and its 1 pin is connected in-the 220V power supply, and its 2 pin is connected in power supply ground, and its 3 pin is connected in+the 220V power supply, and its 4 pin is a voltage signal output end.
3. the intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner according to claim 1; It is characterized in that: the model of described Hall leakage current sensor is U26; Wherein, the 220V power lead penetrates from the feedthrough hole of Hall leakage current sensor, and 2 pin of this Hall leakage current sensor are connected in+the 12V power supply; Its 3 pin is connected in-the 12V power supply, and its 1 pin is a current signal output end.
4. the intelligent test device of using in the semi-hardware type simulation test system of cabinet air-conditioner according to claim 1; It is characterized in that: described isolation signals amplifier module adopts U30 and two kinds of models of U33; Wherein, described isolation signals amplifier module essence is a DC-DC Switching Power Supply translation circuit, and 1,2 pin are the test signal voltage input end; 4,5 pin are the back work power supply, and 8,11 pin are the signal voltage output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202372208U CN202177674U (en) | 2011-07-07 | 2011-07-07 | Intelligent testing apparatus used for cabinet air conditioner half-practicality imitation test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202372208U CN202177674U (en) | 2011-07-07 | 2011-07-07 | Intelligent testing apparatus used for cabinet air conditioner half-practicality imitation test system |
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| Publication Number | Publication Date |
|---|---|
| CN202177674U true CN202177674U (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202372208U Expired - Fee Related CN202177674U (en) | 2011-07-07 | 2011-07-07 | Intelligent testing apparatus used for cabinet air conditioner half-practicality imitation test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353858A (en) * | 2011-07-07 | 2012-02-15 | 佛山市中格威电子有限公司 | Intelligent tester for semi-hardware-in-large-loop simulation test system of cabinet air conditioner |
| CN103983829A (en) * | 2013-09-23 | 2014-08-13 | 包建伟 | Multifunctional Hall sensor |
| CN113820588A (en) * | 2021-09-02 | 2021-12-21 | 格力电器（武汉）有限公司 | Detection method for integration of display and communication interface of air conditioner control mainboard |
-
2011
- 2011-07-07 CN CN2011202372208U patent/CN202177674U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353858A (en) * | 2011-07-07 | 2012-02-15 | 佛山市中格威电子有限公司 | Intelligent tester for semi-hardware-in-large-loop simulation test system of cabinet air conditioner |
| CN102353858B (en) * | 2011-07-07 | 2013-05-15 | 佛山市中格威电子有限公司 | Intelligent tester for Semi-physical simulation test system of cabinet air conditioner |
| CN103983829A (en) * | 2013-09-23 | 2014-08-13 | 包建伟 | Multifunctional Hall sensor |
| CN113820588A (en) * | 2021-09-02 | 2021-12-21 | 格力电器（武汉）有限公司 | Detection method for integration of display and communication interface of air conditioner control mainboard |
| CN113820588B (en) * | 2021-09-02 | 2024-05-10 | 格力电器（武汉）有限公司 | Integrated detection method for display and communication interface of air conditioner control main board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20130707 |