CN101034124A - Variable frequency air conditioner power module and detection system and detection method of driving module of variable frequency air conditioner power module - Google Patents
Variable frequency air conditioner power module and detection system and detection method of driving module of variable frequency air conditioner power module Download PDFInfo
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- CN101034124A CN101034124A CN 200710026878 CN200710026878A CN101034124A CN 101034124 A CN101034124 A CN 101034124A CN 200710026878 CN200710026878 CN 200710026878 CN 200710026878 A CN200710026878 A CN 200710026878A CN 101034124 A CN101034124 A CN 101034124A
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Abstract
The invention relates to the field of air conditioner production, in particular to a system and a method for detecting a power module and a driving module of a variable frequency air conditioner in the production process of the variable frequency air conditioner. The detection system and the detection method provided by the invention take the single chip microcomputer as a core, and are matched with the voltage detection signal output circuit, the voltage detection signal return circuit, the communication circuit, the indicator light circuit, the key control circuit and other circuits, so that the power module and the driving module of the variable-frequency air conditioner are automatically detected and diagnosed according to the steps, the detection result is automatically output, the time for detecting the variable-frequency module on a production line can be greatly shortened, the production efficiency is improved, and meanwhile, the circuits which cannot be detected manually can be detected. In addition, the upper computer records the fault condition of each tested module and the sequence number of the tested module with the fault, so that the data analysis and statistics of the fault module and the product percent of pass are facilitated, and the reason of the tested module with the fault is conveniently searched.
Description
Technical field
The present invention relates to the air conditioner production field, relate in particular in the convertible frequency air-conditioner production run system and method that its power module and driver module thereof are detected.
Background technology
In the production run of transducer air conditioning, require the power module and the driver module thereof of off-premises station are detected.Usually, the detected part of power module and driver module thereof mainly comprises: power circuit and power supply chip, driving circuit main control chip and communicating circuit, holding circuit, reset circuit and rectification circuit etc.
At present, prior art does not also have to form the standard that power module and driver module thereof to off-premises station detect, and does not have special-purpose detection system and corresponding detection method.Usually, different manufacturers are detected according to s own situation, and its technical scheme does not often have versatility, and checkability is low and quality inspection is poor.In addition, the present method that the power module and the driver module thereof of off-premises station are detected mainly is that its checkability does not catch up with manufacturing schedule far away, and some functional circuit utilizes manual detection to realize by artificial.
Summary of the invention
The object of the present invention is to provide the detection system of a kind of convertible frequency air-conditioner power module and driver module thereof, can finish detection automatically convertible frequency air-conditioner power module and driver module thereof.
For achieving the above object, the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof comprises: power circuit, for each circuit of forming this detection system provides required power supply; Single-chip microcomputer is controlled whole testing process by trace routine; The voltage detection signal output circuit is connected with single-chip microcomputer on the one hand, is used on the other hand being connected with the power circuit of tested power module and driver module thereof and the detection input end of rectification circuit when detecting; The voltage detection signal feedback circuit is connected with single-chip microcomputer on the one hand, is used on the other hand being connected with the power circuit of tested power module and driver module thereof and the detection output terminal of rectification circuit when detecting; Communicating circuit is connected with single-chip microcomputer on the one hand, is used on the other hand being connected with the communicating circuit of tested driver module when detecting, and realizes the communication between single-chip microcomputer and the tested driver module; Indicator light circuit is connected with single-chip microcomputer, shows testing result under Single-chip Controlling; Key control circuit comprises starting key circuit and restoring key circuit, is connected the startup of control detection process and recovery respectively with single-chip microcomputer.
The detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof also comprises the communicating circuit of host computer and single-chip microcomputer and host computer.
Another object of the present invention provides the detection method of a kind of convertible frequency air-conditioner power module and driver module thereof; be used for realizing that power circuit and power supply chip, driving circuit main control chip and communicating circuit, holding circuit, reset circuit and rectification circuit to tested power module and driver module thereof detect, it is characterized in that comprising following process:
(1) utilize Single-chip Controlling voltage detection signal output circuit voltage sense signal to give tested power circuit, and utilize the voltage detection signal feedback circuit to receive the return path signal of described tested power circuit relative voltage detection signal, and send the single-chip microcomputer analysis and judgement to, then by the result of single-chip microcomputer output to power circuit and power supply chip detection;
(2) single-chip microcomputer is according to DC frequency-changing master communications protocol, by communicating circuit and tested driver module communication, thereby whether the communicating circuit that detects tested driver module is normal, simultaneously whether qualified the main control chip program burn writing situation of tested driver module provided judgement, and export the result that this part detects;
(3) apply a guard signal by single-chip simulation and give tested driver module, send the compressor start order to tested driver module then, check whether the DC frequency-changing driver module has the module protection signal to return, whether thereby it is normal to detect the tested module holding circuit, and exports the result that this part detects;
(4) apply a reset signal by single-chip simulation and give tested driver module, and then export a guard signal by single-chip microcomputer and give tested driver module, thereby send the compressor start order to tested module, according to communications protocol, check the guard signal that whether returns the type, thereby whether the reset circuit to tested driver module is qualified, and exports the result that this part detects;
(5) come the control output voltage detection signal to give tested driver module rectifier bridge by single-chip microcomputer, detect its output voltage whether in the scope that requires, thereby whether rectification circuit damaged judge, and export the result that this part detects;
(6) single-chip microcomputer is exported final detection result according to above each several part testing result.
Detection system provided by the invention and method detect can detect diagnosis to the power module of convertible frequency air-conditioner and each functional circuit of driver module thereof automatically according to step, and export testing result automatically, can reduce the time of production line check frequency-variable module greatly, enhance productivity, simultaneously can be to detecting with artificial non-detectable circuit.Simultaneously, can write down the sequence number of the failure condition and the out of order tested module of each tested module, be convenient to the data analysis statistics of malfunctioning module and the statistics of product percent of pass, also be convenient to the cause investigation of out of order tested module simultaneously by host computer.
Description of drawings
The composition frame chart of the detection system of the convertible frequency air-conditioner power module that provides in the embodiment of the invention one and driver module thereof is provided Fig. 1;
Fig. 2 is the synoptic diagram of detection system shown in Figure 1 and tested power module and driver module thereof;
The composition frame chart of the detection system of the convertible frequency air-conditioner power module that provides in the embodiment of the invention two and driver module thereof is provided Fig. 3;
Fig. 4 is the synoptic diagram of power circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Fig. 5 is the synoptic diagram of single chip circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Fig. 6 is the synoptic diagram of the detection system repeat circuit driving circuit of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Fig. 7 is the synoptic diagram of the detection system repeat circuit output circuit of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Fig. 8 is the synoptic diagram of voltage detection signal feedback circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Fig. 9 is the synoptic diagram of communicating circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Figure 10 is the synoptic diagram of indicator light circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Figure 11 is the synoptic diagram of buzzer circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Figure 12 is the synoptic diagram that starts key control circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Figure 13 is the synoptic diagram that restores key control circuit in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof;
Figure 14 be in the detection system of convertible frequency air-conditioner power module provided by the invention and driver module thereof with the synoptic diagram of the circuit of upper machine communication;
Figure 15 is the process flow diagram of the detection method of convertible frequency air-conditioner power module provided by the invention and driver module thereof.
Embodiment
Embodiment one
Present embodiment provides the detection system of a kind of convertible frequency air-conditioner power module and driver module thereof, is used for finishing automatically the detection to each tested part on tested power module and the driver module thereof.Wherein, detected part comprises: (1) power circuit and power supply chip, (2) driving circuit main control chip and communicating circuit, (3) holding circuit, (4) reset circuit and (5) rectification circuit.
As shown in Figure 1, the convertible frequency air-conditioner power module that provides of present embodiment and this detection system of driver module thereof comprise: power circuit, single-chip microcomputer, voltage detection signal output circuit, voltage detection signal feedback circuit, communicating circuit, buzzer circuit, indicator light circuit, key control circuit.Below in conjunction with accompanying drawing, the annexation between structure, function and the circuit of each built-up circuit of constituting detection system provided by the invention is described in detail.
Wherein, power circuit is used to each circuit of forming this detection system that required power supply is provided.Figure 4 shows that the synoptic diagram of the power circuit that present embodiment provides, wherein CN2, CN3 connect external power source, and CN4 connects the simple of transformer (not shown), and CN1 connects the secondary of transformer.This power circuit divides three the tunnel, adopts 7815,7812,7805 type power supply chips respectively, exports 15V, 12V, 5V direct current respectively.
Wherein, single chip circuit is the core of this detection system, controls whole testing process by trace routine.Specifically comprise the generation detection signal, receive the corresponding feedback signal that detects, analysis and judgement is exported testing result at last then.As shown in Figure 5, the single-chip microcomputer that provides of present embodiment adopts the ATMEGA64 chip.
Wherein, the voltage detection signal output circuit is connected with single-chip microcomputer on the one hand, be used on the other hand when detecting, being connected (please in conjunction with consulting Fig. 2) with the power circuit of tested power module and driver module thereof and the detection input end of rectification circuit, thereby under the control of single-chip microcomputer, voltage detection signal is sent to the power circuit and the rectification circuit of tested power module and driver module thereof.In the present embodiment, the voltage detection signal output circuit is made of relay drive circuit (as Fig. 6) and relay output circuit (as Fig. 7), can export the voltage detection signal of multiple amplitude, as 5V, 12V, 15V.Among Fig. 6, indicate terminal that " 0V OUT ", " 5V OUT ", " 12VOUT ", " 15V OUT " reach " 5_OUTC " respectively with Fig. 5 in singlechip chip be marked with the pin that " 0V OUT ", " 5V OUT ", " 12V OUT ", " 15V OUT " reach " 5_OUTC " and be connected.Among Fig. 7, indicate terminal that " 0_C ", " 5_C ", " 12_C ", " 15_C " reach " 5_OUTCC " respectively with indicate the terminal that " 0_C ", " 5_C ", " 12_C ", " 15_C " reach " 5_OUTCC " among Fig. 6 and be connected, CN5 is connected with the power circuit of tested power module and driver module thereof and the detection input end of rectification circuit during detection.
Wherein, described voltage detection signal feedback circuit is connected with single-chip microcomputer on the one hand, be used on the other hand when detecting, being connected with the power circuit of tested power module and driver module thereof and the detection output terminal of rectification circuit, be used to receive the power circuit of tested power module and driver module thereof and the return path signal of rectification circuit relative voltage detection signal, and send single-chip microcomputer (please in conjunction with consulting Fig. 2) to.The voltage detection signal feedback circuit that Fig. 8 provides for present embodiment, has feedback circuit corresponding to four kinds of different amplitude voltages, the terminal that indicates " C16_T ", " C38_T ", " C40_T ", " C50_T " among the figure is connected with the singlechip chip pin that is marked with " C16_T ", " C38_T ", " C40_T ", " C50_T " among Fig. 5 respectively, and CN6 is connected with the power circuit of tested power module and driver module thereof and the detection output terminal of rectification circuit during detection.
Wherein, described communicating circuit is connected with single-chip microcomputer on the one hand; be used on the other hand when detecting, being connected with the communicating circuit of tested driver module; realize the communication between single-chip microcomputer and the tested driver module; thereby the detection signal separately that is used to detect driving circuit main control chip and communicating circuit on the tested driver module, holding circuit, reset circuit that when detecting single-chip microcomputer is produced sends tested driver module to, and with tested driver module relatively the feedback signal of each detection signal return to single-chip microcomputer (please in conjunction with consulting Fig. 2).The communicating circuit that Fig. 9 provides for present embodiment, the terminal that indicates " RXD ", " TXD " among the figure is connected with the singlechip chip pin that is marked with " RXD ", " TXD " among Fig. 5 respectively, and CN14 is connected with the communicating circuit of tested power module and driver module thereof during detection.
Wherein, described indicator light circuit is connected with single-chip microcomputer, and single-chip microcomputer is exported to indicator light circuit with testing result then to the return path signal analysis and judgement in detecting, and shows each several part testing result and final detection result by indicator light circuit.As shown in figure 10, the indicator light circuit that provides of present embodiment comprises that five the tunnel are respectively applied for indicator light circuit that shows five tested part testing results and the indicator light circuit that two-way is used to show final detection acceptance or rejection.Indicate " LED1_F " among Figure 10, " LED1_T ", " LED2_F ", " LED2_T ", " LED3_F ", " LED3_T ", " LED4_F ", " LED4_T ", " LED5_F ", " LED5_T ", " LEDALL_OK ", the terminal of " LED_F " respectively with Fig. 5 in singlechip chip be marked with " LED1_F ", " LED1_T ", " LED2_F ", " LED2_T ", " LED3_F ", " LED3_T ", " LED4_F ", " LED4_T ", " LED5_F ", " LED5_T ", " LEDALL_OK ", the pin of " LED_F " connects.
Wherein, described buzzer circuit is connected with single-chip microcomputer, and single-chip microcomputer is controlled it according to testing result and given the alarm, prompting checker testing result.The buzzer circuit that present embodiment provides as shown in figure 11, the pin that singlechip chip is marked with " BUZER OUT " among the terminal that wherein indicates " BUZER OUT " and Fig. 5 is connected.
Wherein, described key control circuit comprises the startup key circuit and restores key circuit, is used for starting and the control detection process.The pin that singlechip chip is marked with " KEY " in the startup key circuit that present embodiment provides and restore key circuit respectively as Figure 12 and shown in Figure 13, the terminal that indicates " KEY " among Figure 12 and Fig. 5 is connected; The pin that singlechip chip is marked with " RESET " among the terminal that indicates " RESET " among Figure 13 and Fig. 5 is connected.
Detection system based on above-mentioned convertible frequency air-conditioner power module and driver module thereof; present embodiment also provides the detection method of a kind of convertible frequency air-conditioner power module and driver module thereof, can detect (1) power circuit on tested power module and the driver module thereof and power supply chip, (2) driving circuit main control chip and communicating circuit, (3) holding circuit, (4) reset circuit and (5) rectification circuit.Please in conjunction with consulting Figure 15, the concrete testing process of the detection method of this convertible frequency air-conditioner power module and driver module thereof is as follows:
(1) exports detectable voltage signals respectively by Single-chip Controlling, give tested power module as 15V and 12V, detect the output voltage of two-way power supply chip respectively, see that it is whether in claimed range, thereby provide the whether qualified judgement of power circuit and power supply chip, and export the result that this part detects;
(2) single-chip microcomputer is according to the communication of DC frequency-changing master communications protocol simulation with the DC frequency-changing driver module, thereby whether the communicating circuit that detects tested driver module is normal, simultaneously whether qualified the main control chip program burn writing situation of tested driver module provided judgement, and export the result that this part detects;
(3) apply a guard signal by single-chip simulation and give tested driver module, send the compressor start order to tested driver module then, check whether the DC frequency-changing driver module has the module protection signal to return, whether thereby it is normal to detect the tested module holding circuit, and exports the result that this part detects;
(4) apply a reset signal by single-chip simulation and give tested driver module, and then export a guard signal by single-chip microcomputer and give tested driver module, thereby send the compressor start order to tested module, according to communications protocol, check the guard signal that whether returns the type, thereby whether the reset circuit to tested driver module is qualified, and exports the result that this part detects;
(5) come the control output voltage detection signal by single-chip microcomputer, give tested driver module rectifier bridge, whether the output voltage that detects tested driver module rectifier bridge in the scope the inside that requires, thereby whether rectification circuit damaged judges, and exports the result that this part detects;
(6) single-chip microcomputer is according to the each part mentioned above testing result, and whether qualified output is final detects result.
Embodiment two
As shown in Figure 3, the detection system of the convertible frequency air-conditioner power module that provides of embodiment two and driver module thereof on the basis of embodiment one, increased host computer, with the communicating circuit circuit (as Figure 14) of upper machine communication.Among Figure 14, the terminal that indicates " RXD0_RX " is corresponding to be connected, the terminal that indicates " TXD0_TX " is corresponding to be connected, the terminal that indicates " RXD0 ", " TXD0 " is marked with the corresponding connection of pin of " RXD0 ", " TXD0 " respectively with single-chip microcomputer shown in Figure 5, CN16 is used for being connected with the communication terminal of host computer, and this communicating circuit is integrated with the program burn writing circuit.Host computer is as the auxiliary of slave computer and replenish, by with the communication of single-chip microcomputer, testing process that both can control single chip computer can show and write down the testing result data again.
Claims (9)
1. the detection system of convertible frequency air-conditioner power module and driver module thereof is characterized in that this system comprises:
Power circuit is for each circuit of forming this detection system provides required power supply;
Single-chip microcomputer is controlled whole testing process by trace routine;
The voltage detection signal output circuit is connected with single-chip microcomputer on the one hand, is used on the other hand being connected with the power circuit of tested power module and driver module thereof and the detection input end of rectification circuit when detecting;
The voltage detection signal feedback circuit is connected with single-chip microcomputer on the one hand, is used on the other hand being connected with the power circuit of tested power module and driver module thereof and the detection output terminal of rectification circuit when detecting;
Communicating circuit is connected with single-chip microcomputer on the one hand, is used on the other hand being connected with the communicating circuit of tested driver module when detecting, and realizes the communication between single-chip microcomputer and the tested driver module;
Indicator light circuit is connected with single-chip microcomputer, shows testing result under Single-chip Controlling; And
Key control circuit comprises starting key circuit and restoring key circuit, is connected the startup of control detection process and recovery respectively with single-chip microcomputer.
2. the detection system of convertible frequency air-conditioner power module as claimed in claim 1 and driver module thereof is characterized in that: described power circuit has the output of three road direct currents, respectively corresponding three different magnitudes of voltage.
3. the detection system of convertible frequency air-conditioner power module as claimed in claim 1 and driver module thereof, it is characterized in that: described voltage detection signal output circuit is made of relay drive circuit and relay output circuit, can export the voltage detection signal of at least three kinds of amplitudes.
4. the detection system of convertible frequency air-conditioner power module as claimed in claim 1 and driver module thereof is characterized in that: described voltage detection signal feedback circuit has the feedback circuit corresponding to four kinds of different amplitude voltages.
5. the detection system of convertible frequency air-conditioner power module as claimed in claim 1 and driver module thereof is characterized in that: also comprise buzzer circuit, be connected with single-chip microcomputer.
6. the detection system of convertible frequency air-conditioner power module as claimed in claim 1 and driver module thereof is characterized in that: the communicating circuit that also comprises host computer and single-chip microcomputer and upper machine communication.
7. the detection system of convertible frequency air-conditioner power module as claimed in claim 6 and driver module thereof is characterized in that: described and communicating circuit upper machine communication is integrated with the program burn writing circuit.
8. the detection method of convertible frequency air-conditioner power module and driver module thereof; be used for realizing that power circuit and power supply chip, driving circuit main control chip and communicating circuit, holding circuit, reset circuit and rectification circuit to tested power module and driver module thereof detect, it is characterized in that comprising following process:
(1) utilize Single-chip Controlling voltage detection signal output circuit voltage sense signal to give tested power circuit, and utilize the voltage detection signal feedback circuit to receive the return path signal of described tested power circuit relative voltage detection signal, and send the single-chip microcomputer analysis and judgement to, then by the result of single-chip microcomputer output to power circuit and power supply chip detection;
(2) single-chip microcomputer is according to DC frequency-changing master communications protocol, by communicating circuit and tested driver module communication, thereby whether the communicating circuit that detects tested driver module is normal, simultaneously whether qualified the main control chip program burn writing situation of tested driver module provided judgement, and export the result that this part detects;
(3) apply a guard signal by single-chip simulation and give tested driver module, send the compressor start order to tested driver module then, check whether the DC frequency-changing driver module has the module protection signal to return, whether thereby it is normal to detect the tested module holding circuit, and exports the result that this part detects;
(4) apply a reset signal by single-chip simulation and give tested driver module, and then export a guard signal by single-chip microcomputer and give tested driver module, thereby send the compressor start order to tested module, according to communications protocol, check the guard signal that whether returns the type, thereby whether the reset circuit to tested driver module is qualified, and exports the result that this part detects;
(5) come the control output voltage detection signal to give tested driver module rectifier bridge by single-chip microcomputer, detect its output voltage whether in the scope that requires, thereby whether rectification circuit damaged judge, and export the result that this part detects;
(6) single-chip microcomputer is exported final detection result according to above each several part testing result.
9. the detection method of convertible frequency air-conditioner power module as claimed in claim 8 and driver module thereof, it is characterized in that: also comprise a host computer is provided, make host computer and microcontroller communication, utilize the testing process of PC control single-chip microcomputer, show and record testing result data.
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