CN203455433U - Air conditioner fault detection device and air conditioner fault detection system comprising same - Google Patents
Air conditioner fault detection device and air conditioner fault detection system comprising same Download PDFInfo
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- CN203455433U CN203455433U CN201320510517.6U CN201320510517U CN203455433U CN 203455433 U CN203455433 U CN 203455433U CN 201320510517 U CN201320510517 U CN 201320510517U CN 203455433 U CN203455433 U CN 203455433U
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Abstract
The utility model provides an air conditioner fault detection device and an air conditioner fault detection system comprising same, and discloses the air conditioner fault detection system and the air conditioner fault detection device. The air conditioner fault detection system includes an indoor machine and an outdoor machine, wherein the indoor machine is connected with the outdoor machine through connection terminals, and the indoor machine sends data to the outdoor machine and supplies power for the outdoor machine; and the air conditioner fault detection device disposed on the outdoor machine, wherein the air conditioner fault detection device is connected with the connection terminals, receives data sent by the indoor machine, and judges communication failure types according to the data. With the air conditioner fault detection system, communication fault type between the outdoor machine and the indoor machine of an air conditioner can be judged and displayed rapidly, thus facilitating maintenance of people and recovery of normal work of the air conditioner. The air conditioner fault detection system is reasonable in structure, low in cost, easy to achieve, and capable of fulfilling user requirements.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly a kind of air-condition faults detection system and a kind of air-condition faults pick-up unit.
Background technology
Traditional home-use outdoor machine of air-conditioner live wire, zero line, signal wire and ground wire is corresponding connected with live wire, zero line, signal wire and the ground wire of indoor set respectively by air-conditioner connecting terminal.By the method for identification line body color, to distinguish live wire, zero line and the signal wire of indoor apparatus of air conditioner and off-premises station at present.General Definition live wire is brown line body, and zero line is blue line body, and signal wire is black line body.Wherein signal wire is smaller than the line body diameter of live wire and zero line, than being easier to, distinguishes.
But list is distinguished and but can not be guaranteed that the brown line body of air-conditioner outdoor unit is that live wire, blue line body are zero line from line body color.For example, outside air conditioning chamber in main control board assembling process due to assembly crewman's misoperation, make live wire and zero line line body incorrect link or use the line body of non-palm fibre, blue dichromatism as live wire, zero line, now the method with the blue two kinds of color differentiating live wires of palm fibre, zero line is impracticable.And, the indoor set of air-conditioning is off-premises station power supply, the live wire of air-conditioner outdoor unit is connected with the zero line of indoor set, the zero line of off-premises station and the live wire of indoor set are connected can cause can not proper communication can not being worked by air-conditioning inside and outside air conditioning chamber, when serious by broken parts circuit.
The shortcoming that prior art exists is that existing air-conditioning does not have the function of self check off-premises station live wire and zero line incorrect link, just generally classifies as E1 fault, i.e. indoor and outdoor communication failure.And this failure message cannot to segment out be off-premises station live wire and zero line wiring error, by causing, cannot judge fast definite communication failure type to recover as early as possible the normal operation of air-conditioning, to maintenance, make troubles, cannot meet user's demand.
Utility model content
The purpose of this utility model is intended to solve at least to a certain extent above-mentioned technological deficiency.
For this reason, an object of the present utility model is to propose a kind of air-condition faults detection system, this system can judge and show the communication failure type between air-conditioner outdoor unit and indoor set fast, to people's maintenance, bring convenience, to recover as early as possible the normal operation of air-conditioning, and it is simple and reasonable, and cost is low, be easy to realize, meet user's demand.
Another object of the present utility model is to propose a kind of air-condition faults pick-up unit.
For achieving the above object, the utility model has proposed a kind of air-condition faults detection system on the one hand, comprise: indoor set and off-premises station, described indoor set is connected with described off-premises station by connection terminal, described indoor set sends data to described off-premises station, and described indoor set is described off-premises station power supply; And be arranged on the air-condition faults pick-up unit on described off-premises station, described air-condition faults pick-up unit is connected with described connection terminal, described air-condition faults pick-up unit receives the described data that described indoor set sends, and according to described data judgement communication failure type.
According to the air-condition faults detection system the utility model proposes, by the air-condition faults pick-up unit on off-premises station, receive the data that indoor set sends, can judge fast and show the communication failure type between air-conditioner outdoor unit and indoor set, bring convenience to people's maintenance, to recover as early as possible the normal operation of air-conditioning.And this air-condition faults detection system is simple and reasonable, and cost is low, easily realize, fully meet user's demand.
Preferably, above-mentioned air-condition faults pick-up unit further comprises: buffer, and described buffer is connected with described connection terminal, data described in described buffer buffer memory; The first comparer, described the first comparer is connected with described buffer, and described the first comparer generates the first comparison signal according to the type of described data; The second comparer, described the second comparer is connected with described buffer, and described the second comparer generates the second comparison signal according to the cycle of described data; The 3rd comparer, described the 3rd comparer is connected with described buffer, and described the 3rd comparer generates the 3rd comparison signal according to the dutycycle of described data; Processor, described processor is connected with described the first comparer, the second comparer and the 3rd comparer, and described processor is according to described the first comparison signal, the second comparison signal and the 3rd comparison signal judgement communication failure type.
Wherein, above-mentioned air-condition faults detection system also comprises: electric current loop asynchronous serial communication device, described electric current loop asynchronous serial communication device is connected between described indoor set and described off-premises station.
Preferably, above-mentioned air-condition faults pick-up unit is integrated in the controller of described off-premises station.
Preferably, above-mentioned air-condition faults pick-up unit also comprises: display, and described display is connected with described processor, and described display display communication fault type, points out user very intuitively, brings convenience to judgement communication failure type and maintenance.
For achieving the above object, the utility model has also proposed a kind of air-condition faults pick-up unit on the other hand, and this air-condition faults pick-up unit comprises: buffer, and described buffer is connected with connection terminal, and described buffer buffer memory indoor set is sent to the data of off-premises station; The first comparer, described the first comparer is connected with described buffer, and described the first comparer generates the first comparison signal according to the type of described data; The second comparer, described the second comparer is connected with described buffer, and described the second comparer generates the second comparison signal according to the cycle of described data; The 3rd comparer, described the 3rd comparer is connected with described buffer, and described the 3rd comparer generates the 3rd comparison signal according to the dutycycle of described data; Processor, described processor is connected with described the first comparer, the second comparer and the 3rd comparer, and described processor judges the communication failure type between described indoor set and off-premises station according to described the first comparison signal, the second comparison signal and the 3rd comparison signal.
According to the air-condition faults pick-up unit the utility model proposes, the function with the communication failure type between judgement indoor set and off-premises station, thereby can distinguish fast whether wiring error of live wire between air-conditioner outdoor unit and indoor set and zero line, to maintenance, bring great convenience.And this air-condition faults structure of the detecting device advantages of simple, cost is low, is easy to realize, and meets user's demand.
Wherein, above-mentioned air-condition faults pick-up unit also comprises: display, and described display is connected with described processor, and described display shows described communication failure type.
Preferably, above-mentioned air-condition faults pick-up unit is integrated in the controller of described off-premises station.
The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the utility model and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is according to the structured flowchart of the air-condition faults detection system of the utility model embodiment;
Fig. 2 is the correct schematic diagram of air-conditioner outdoor unit wiring according to an embodiment of the utility model;
Fig. 3 is according to the schematic diagram of the air-conditioner outdoor unit wiring error of another embodiment of the utility model;
Fig. 4 A is according to the structured flowchart of the air-condition faults detection system of an embodiment of the utility model;
Fig. 4 B is according to the structural representation of the electric current loop asynchronous serial communication device of an embodiment of the utility model;
Fig. 5 A is according to the indoor apparatus of air conditioner of an embodiment of the utility model and off-premises station proper communication waveform schematic diagram;
Indoor set and off-premises station exceptional communication waveform schematic diagram when Fig. 5 B is the live wire of air-conditioner outdoor unit of another embodiment of the utility model and zero line wiring error;
Fig. 6 A is the air-condition faults structure of the detecting device schematic diagram according to an embodiment of the utility model;
Fig. 6 B is according to the controller function configuration diagram of the off-premises station of an embodiment of the utility model; And
Fig. 7 judges the whether process flow diagram of wiring error of air-conditioner outdoor unit live wire and zero line according to the air-condition faults detection system of an embodiment of the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skills can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are for the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the present utility model, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, by these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiment of the present utility model, represent to implement some modes of the principle of embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises spirit and all changes within the scope of intension, modification and the equivalent that falls into additional claims.
The air-condition faults detection system and the air-condition faults pick-up unit that according to the utility model embodiment, propose are described with reference to the accompanying drawings.
Fig. 1 is according to the structured flowchart of the air-condition faults detection system of the utility model embodiment.As shown in Figure 1, this air-condition faults detection system comprises indoor set 10, connection terminal 20, off-premises station 30 and is arranged on the air-condition faults pick-up unit 301 on off-premises station 30.
Wherein, indoor set 10 is connected with off-premises station 30 by connection terminal 20, and indoor set 10 sends data to off-premises station 30, and indoor set 10 is off-premises station 30 power supplies; Air-condition faults pick-up unit 301 is connected with connection terminal 20, and air-condition faults pick-up unit 301 receives the data that indoor set 10 sends, and according to data judgement communication failure type.
In an embodiment of the present utility model, connection terminal 20 between air-conditioner outdoor unit 30 and indoor set 10 can comprise hot terminal (25), zero line connection terminal (26), signal wire connection terminal (27) and ground wire connection terminal (28), as shown in Figure 2, wherein, in the extension line of indoor set 10, live wire (21) is linked into one end of hot terminal (25), zero line (22) is linked into one end of zero line connection terminal (26), signal wire (23) is linked into one end of signal wire connection terminal (27), ground wire (24) is linked into one end of ground wire connection terminal (28), correspondingly, in the situation that wiring is correct, as shown in Figure 2, in the inlead of off-premises station, live wire (21) is drawn from the other end of hot terminal (25), zero line (22) from zero line connection terminal, (draw by 26 the other end, signal wire (23) is drawn from the other end of signal wire connection terminal (27), ground wire (24) is drawn from the other end of ground wire connection terminal (28).
But, in another embodiment of the present utility model, the in the situation that of wiring error, as shown in Figure 3, now in the inlead of off-premises station 10, zero line (22) is drawn from the other end of hot terminal (25), live wire (21) from zero line connection terminal, (draw by 26 the other end, signal wire (23) is drawn from the other end of signal wire connection terminal (27), ground wire (24) is drawn from the other end of ground wire connection terminal (28), now just will cause can not proper communication can not being worked by air-conditioning between indoor apparatus of air conditioner 10 and off-premises station 30, when serious, will cause to the partial circuit of air-conditioning the damage of unrepairable.
Air-condition faults detection system of the present utility model receives by the air-condition faults pick-up unit 301 on off-premises station 30 data that indoor set 10 sends, can judge the communication failure type between air-conditioner outdoor unit and indoor set, especially can judge fast whether wiring error of live wire between air-conditioner outdoor unit and indoor set and zero line, it is simple and reasonable, cost is low, convenient and swift, and easily realize.
In an embodiment of the present utility model, as shown in Figure 4 A, above-mentioned air-condition faults pick-up unit 301 can be integrated in the controller 302 of off-premises station 30.
In an embodiment of the present utility model, as shown in Figure 4 B, above-mentioned air-condition faults detection system also comprises: electric current loop asynchronous serial communication device 40, electric current loop asynchronous serial communication device 40 is connected between indoor set 10 and off-premises station 30.
Particularly, as shown in Figure 4 B, above-mentioned electric current loop asynchronous serial communication device 40 comprises outside telecommunication circuit 401 and indoor telecommunication circuit 402, and the signal wire of outside telecommunication circuit 401 (23) S end is connected with signal wire (23) the S end of indoor telecommunication circuit 402, the zero line of outside telecommunication circuit 401 (22) N end is connected with zero line (22) the N end of indoor set telecommunication circuit 402.
As shown in Figure 4 B, off-premises station telecommunication circuit 401 comprises: the transmission pin OUT-TXD(401 of controller 302), resistance (402), triode (403), resistance (404), + 5V power supply (405), resistance (406), outdoor transmission optocoupler (407), diode (408), electric capacity (432), electric capacity (433), resistance (434), outdoor reception optocoupler (435), resistance (436), electric capacity (437), resistance (438), the reception pin OUT-RXD(439 of controller 302), the pin I/O(541 of controller 302), indoor set telecommunication circuit 402 comprises: diode (409), resistance (410), electric capacity (411), electric capacity (412), resistance (413), indoor reception optocoupler (414), resistance (415), electric capacity (416), + 5V power supply (417), resistance (418), the reception pin IN-RXD(419 of indoor set), the transmission pin IN-TXD(440 of indoor set), resistance (420), resistance (421), triode (422), resistance (423), indoor transmission optocoupler (424), diode (425), resistance (426), resistance (427), voltage stabilizing diode (428), resistance (429), electric capacity (430), electric capacity (431).
Wherein, the transmission pin OUT-TXD(401 of controller 302) be connected with one end of resistance (402), the other end of resistance (402) is connected with the base stage of triode (403), the collector of triode (403) is connected with one end of resistance (404), be connected to+5V of the other end power supply (405) of resistance (404), the emitter of triode (403) is connected with a pin of one end of resistance (406) and the input end of outdoor transmission optocoupler (407), another pin of the input end of the other end of resistance (406) and outdoor transmission optocoupler (407) is connected to ground, the emitter of outdoor transmission optocoupler (407) output terminal is connected to one end of electric capacity (432) and the anode of diode (408), the collector of outdoor transmission optocoupler (407) output terminal and one end of resistance (434), a pin of one end of electric capacity (433) and outdoor reception optocoupler (435) input end is connected, the negative electrode of diode (408) is connected with the anode of diode (409), the negative electrode of diode (409) is connected with one end of resistance (410), the other end of resistance (410) is connected to electric capacity (411), electric capacity (412), a pin of one end of resistance (413) and indoor reception optocoupler (414) input end, the other end of electric capacity (412) and resistance (413) is connected with another pin of indoor reception optocoupler (414) input end and the collector of indoor transmission optocoupler (424) output terminal, be connected to+5V of the collector power supply (417) of indoor reception optocoupler (414) output terminal, the emitter of indoor reception optocoupler (414) output terminal and resistance (415), electric capacity (416), one end of resistance (418) is connected, the other end of resistance (415) and electric capacity (416) is connected to ground, the reception pin IN-RXD(419 of the other end of resistance (418) and indoor set) be connected, the reception pin OUT-RXD(439 of controller 302), I/O(541) be connected with one end of resistance (438), the other end of resistance (438) and electric capacity (437), the emitter of one end of resistance (436) and outdoor reception optocoupler (435) output terminal is connected, electric capacity (437), the other end of resistance (436) is connected to ground, be connected to+5V of the collector power supply (405) of outdoor reception optocoupler (435) output terminal, pin of outdoor reception optocoupler (435) input end and resistance (434), the collector of electric capacity (433) and outdoor transmission optocoupler (407) output terminal is connected, another pin of outdoor reception optocoupler (435) input end and resistance (434), electric capacity (433), the other end of electric capacity (432) and electric capacity (431), electric capacity (430), resistance (429), the zero line N line (22) of one end of voltage stabilizing diode (428) and power supply is connected, electric capacity (431), electric capacity (430), resistance (429), one end of the other end of voltage stabilizing diode (428) and resistance (427), the emitter of indoor transmission optocoupler (424) output terminal, the other end of electric capacity 411 is connected, the other end of resistance (427) is connected with one end of resistance (426), the other end of resistance (426) is connected with the anode of diode (425), the negative electrode of diode (425) is connected on the live wire L line (21) of power supply, pin of the input end of indoor transmission optocoupler (424) and one end of resistance (423), the emitter of triode (422) is connected, the other end of another pin of the input end of indoor transmission optocoupler (424) and resistance (423) is connected to ground, the collector of triode (422) is connected with one end of resistance (421), be connected to+5V of the other end power supply (417) of resistance (421), the base stage of triode (422) is connected with one end of resistance (420), the transmission pin IN-TXD(440 of the other end of resistance (420) and indoor set) be connected.
In the present embodiment, the Principle of Communication of above-mentioned electric current loop asynchronous serial communication device 40 is: when the communication pattern of electric current loop asynchronous serial communication device 40 is indoor set 10 transmissions, off-premises station 30 reception, the transmission pin OUT-TXD(401 of off-premises station) set high level, outdoor transmission optocoupler (407) is by conducting all the time.If the transmission pin IN-TXD(440 of indoor set now) send high level " 1 ", indoor transmission optocoupler (424) conducting, electric current loop is closed, indoor reception optocoupler (414) and outdoor reception optocoupler (435) conducting, the reception pin OUT-RXD(439 of off-premises station) will receive high level " 1 "; If the transmission pin IN-TXD(440 of indoor set now) send low level " 0 ", indoor transmission optocoupler (424) cut-off, electric current loop disconnects, indoor reception optocoupler (414) and outdoor reception optocoupler (435) cut-off, the reception pin OUT-RXD(439 of off-premises station) will receive low level " 0 ", thereby realize signal transmission to off-premises station 30 by indoor set 10.In like manner, electric current loop asynchronous serial communication device 40 can also be realized signal transmission to indoor set 10 by off-premises station 30, does not repeat them here.
Fig. 5 A is according to the indoor apparatus of air conditioner 10 of an embodiment of the utility model and off-premises station 30 proper communication waveform schematic diagram, as shown in Figure 5A, (51) be the data waveform that indoor set 10 sends, (52) be the data waveform that off-premises station 30 receives, the data consistent that the data that now indoor set 10 sends and off-premises station 30 receive, communication waveforms meets asynchronous serial port agreement.
Indoor set 10 and off-premises station 30 exceptional communication waveform schematic diagram when Fig. 5 B is the live wire of air-conditioner outdoor unit 30 of another embodiment of the utility model and zero line wiring error, as shown in Figure 5 B, (53) be the data waveform that indoor set 10 sends, (54) be the data waveform that off-premises station 30 receives, the signal waveform that now off-premises station 30 receives is regularly every 10ms interval, will to have the data of 10ms time span to be dragged down as low level, thus the inconsistent communication failure that occurs of data of the data that off-premises station 30 receives and indoor set 10 transmissions.It should be noted that, in (54), the 10ms time interval is to determine according to ac power frequency (50Hz).Therefore, when off-premises station 30 live wires and zero line wiring error, the data that off-premises station 30 receives are that the data that are separated with T/2 time span every between T/2 are dragged down, and T is the cycle of AC power.
In an embodiment of the present utility model, as shown in Figure 6A, air-condition faults pick-up unit 301 comprises buffer (64), the first comparer (65), the second comparer (66) the 3rd comparer (67) and processor (68).Wherein, buffer (64) is connected with connection terminal (20), and buffer (64) is data cached; The first comparer (65) is connected with buffer (64), and the first comparer (65) generates the first comparison signal according to the type of data; The second comparer (66) is connected with buffer (64), and the second comparer (66) generates the second comparison signal according to the cycle of data; The 3rd comparer (67) is connected with buffer (64), and the 3rd comparer (67) generates the 3rd comparison signal according to the dutycycle of data; Processor (68) is connected with the first comparer (65), the second comparer (66) and the 3rd comparer (67), and processor (68) is according to the first comparison signal, the second comparison signal and the 3rd comparison signal judgement communication failure type.
In an embodiment of the present utility model, as shown in Figure 6 A and 6B, by the pin I/O(541 of controller 302) receive the communication data that indoor set 10 sends over, and utilize buffer (64) to carry out buffer memory.Wherein, the data type of the first comparer (65) judgement buffer (64) buffer memory, if square-wave signal, the first comparer (65) exports 1, otherwise export 0, say, the first comparer (65) carries out verification and judges to generate the first comparison signal according to the data type of buffer (64) buffer memory.The second comparer (66) judges whether the data cycle of buffer (64) buffer memory is 50Hz, if so, the second comparer (66) exports 1, otherwise exports 0, say, the second comparer (66) judges to generate the second comparison signal according to the cycle of the data of buffer (64) buffer memory.The 3rd comparer (67) judges whether the data duty cycle of buffer (64) buffer memory is 50%, if so, the 3rd comparer (67) exports 1, otherwise exports 0, say, the 3rd comparer (67) judges to generate the 3rd comparison signal according to the data duty cycle of buffer (64) buffer memory.
Alternatively, processor (68) can comprise AND gate, so that the output signal of the first comparer (65), the second comparer (66) and the 3rd comparer (67) is carried out and operation, and according to operation after result judgement communication failure type.That is to say, processor (68) can also judge the live wire of off-premises station 30 and zero line whether wiring error and output judged result.Particularly, processor (68) is the first comparer (65), the second comparer (66), the 3rd comparer (67) three tunnel inputs and door processor, when the Output rusults of the first comparer (65), the second comparer (66), the 3rd comparer (67) is all 1 simultaneously, processor (68) Output rusults is 1, live wire and zero line detected and connects instead; Otherwise Output rusults is 0, and live wire and zero line do not connect instead.
Preferably, in an embodiment of the present utility model, as shown in Figure 6A, above-mentioned air-condition faults pick-up unit 301 also comprises: display (69), display (69) is connected with processor (68), display (69) display communication fault type.The Output rusults of processor (68) outputs to display (69) and shows.
In embodiment of the present utility model, as shown in Figure 6B, controller 302 is except judging the communication failure type of air-conditionings by air-condition faults pick-up unit 301, especially there is the air-conditioner outdoor unit of judgement live wire and zero line whether outside wiring error function, also there is outdoor master control function module (62), this outdoor master control function module (62) can realize compressor control function, compressor preheating function, compressor low-frequency torque compensate function, general defencive function, defrost function, function is controlled in load, off-premises station defencive function, outdoor low-power consumption function, minimum refrigeration and minimum heating capacity test function, outdoor oil return function, outdoor display function, temperature sensor fault handling function, the air-conditioner outdoor unit master control functions such as compressor fault LED Presentation Function, these functions are the common function of air-conditioning, here be not described in detail.
In an embodiment of the present utility model, as shown in Figure 7, air-condition faults detection system judge air-conditioner outdoor unit live wire and zero line whether the flow process of wiring error comprise the steps:
S1, air-conditioner outdoor unit is connected with indoor set by connection terminal;
S2, off-premises station starts to communicate by letter with the electric current loop asynchronous serial communication device between indoor set;
S3, the outdoor master control serial ports OUT-RXD of controller receives the communication data that indoor set sends;
S4, judges that whether the communication between off-premises station and indoor set is normal.If so, enter step S5, if not, enter step S7;
S5, air-conditioning normal operation;
S6, the air-condition faults pick-up unit of controller receives by I/O mouth the communication data that indoor set sends;
S7, judges whether wiring error of air-conditioner outdoor unit live wire and zero line.If so, enter step S8, if not, enter step S9;
S8, shows E11 failure message, and specifies air-conditioner outdoor unit live wire and zero line wiring error;
S9, shows E1 general room machine and off-premises station communication failure.
According to the air-condition faults detection system the utility model proposes, by the air-condition faults pick-up unit on off-premises station, receive the data that indoor set sends, can judge and show the communication failure type between air-conditioner outdoor unit and indoor set, especially fast judgement and show live wire between air-conditioner outdoor unit and indoor set and zero line wiring error whether, so that Quick overhaul air-conditioning, the normal operation that recovers as early as possible air-conditioning, brings convenience to people.And, air-condition faults pick-up unit can be integrated in the controller of off-premises station, this controller has unnecessary I/O mouth to reserve or idle ground connection conventionally, because the air-condition faults pick-up unit in the air-condition faults detection system the utility model proposes only need take a common I/O mouth of controller, and communication failure type judged result can show by existing detection platelet, or the LED combination by existing demonstration fault shows, thereby this system can additionally not increase hardware cost, and it is simple and reasonable, be easy to realize, fully meet user's demand.
In addition, the utility model embodiment has also proposed a kind of air-condition faults pick-up unit 301.As shown in Figure 6A, this air-condition faults pick-up unit 301 comprises buffer (64), the first comparer (65), the second comparer (66) the 3rd comparer (67) and processor (68).Wherein, buffer (64) is connected with connection terminal (20), and buffer (64) is data cached; The first comparer (65) is connected with buffer (64), and the first comparer (65) generates the first comparison signal according to the type of data; The second comparer (66) is connected with buffer (64), and the second comparer (66) generates the second comparison signal according to the cycle of data; The 3rd comparer (67) is connected with buffer (64), and the 3rd comparer (67) generates the 3rd comparison signal according to the dutycycle of data; Processor (68) is connected with the first comparer (65), the second comparer (66) and the 3rd comparer (67), and processor (68) is according to the first comparison signal, the second comparison signal and the 3rd comparison signal judgement communication failure type.
In an embodiment of the present utility model, as shown in Figure 6 A and 6B, this air-condition faults pick-up unit 301 can be integrated in the controller 302 of off-premises station, by the pin I/O(541 of controller 302) receive the communication data that indoor set 10 sends over, and utilize buffer (64) to carry out buffer memory.Wherein, the data type of the first comparer (65) judgement buffer (64) buffer memory, if square-wave signal, the first comparer (65) exports 1, otherwise export 0, say, the first comparer (65) carries out verification and judges to generate the first comparison signal according to the data type of buffer (64) buffer memory.The second comparer (66) judges whether the data cycle of buffer (64) buffer memory is 50Hz, if so, the second comparer (66) exports 1, otherwise exports 0, say, the second comparer (66) judges to generate the second comparison signal according to the cycle of the data of buffer (64) buffer memory.The 3rd comparer (67) judges whether the data duty cycle of buffer (64) buffer memory is 50%, if so, the 3rd comparer (67) exports 1, otherwise exports 0, say, the 3rd comparer (67) judges to generate the 3rd comparison signal according to the data duty cycle of buffer (64) buffer memory.
Alternatively, processor (68) can comprise AND gate, so that the output signal of the first comparer (65), the second comparer (66) and the 3rd comparer (67) is carried out and operation, and according to operation after result judgement communication failure type.That is to say, processor (68) can also judge the live wire of off-premises station 30 and zero line whether wiring error and output judged result.Particularly, processor (68) is the first comparer (65), the second comparer (66), the 3rd comparer (67) three tunnel inputs and door processor, when the Output rusults of the first comparer (65), the second comparer (66), the 3rd comparer (67) is all 1 simultaneously, processor (68) Output rusults is 1, live wire and zero line detected and connects instead; Otherwise Output rusults is 0, and live wire and zero line do not connect instead.
In an embodiment of the present utility model, as shown in Figure 6A, above-mentioned air-condition faults pick-up unit 301 also comprises: display (69), display (69) is connected with processor (68), display (69) display communication fault type.Processor (68) Output rusults outputs to display (69) and shows.
In embodiment of the present utility model, as shown in Figure 6B, controller 302 is except judging the communication failure type of air-conditionings by air-condition faults pick-up unit 301, especially there is the air-conditioner outdoor unit of judgement live wire and zero line whether outside wiring error function, also there is outdoor master control function module (62), this outdoor master control function module (62) can realize compressor control function, compressor preheating function, compressor low-frequency torque compensate function, general defencive function, defrost function, function is controlled in load, off-premises station defencive function, outdoor low-power consumption function, minimum refrigeration and minimum heating capacity test function, outdoor oil return function, outdoor display function, temperature sensor fault handling function, the air-conditioner outdoor unit master control functions such as compressor fault LED Presentation Function, these functions are the common function of air-conditioning, here be not described in detail.
According to the air-condition faults pick-up unit the utility model proposes, the function with the communication failure type between judgement indoor set and off-premises station, thereby can distinguish fast whether wiring error of live wire between air-conditioner outdoor unit and indoor set and zero line, to maintenance, bring great convenience.And this air-condition faults structure of the detecting device advantages of simple, cost is low, is easy to realize, and meets user's demand.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is by claims and be equal to and limit.
Claims (8)
1. an air-condition faults detection system, is characterized in that, comprising:
Indoor set and off-premises station, described indoor set is connected with described off-premises station by connection terminal, and described indoor set sends data to described off-premises station, and described indoor set is described off-premises station power supply; And
Be arranged on the air-condition faults pick-up unit on described off-premises station, described air-condition faults pick-up unit is connected with described connection terminal, and described air-condition faults pick-up unit receives the described data that described indoor set sends, and according to described data judgement communication failure type.
2. air-condition faults detection system as claimed in claim 1, is characterized in that, described air-condition faults pick-up unit further comprises:
Buffer, described buffer is connected with described connection terminal, data described in described buffer buffer memory;
The first comparer, described the first comparer is connected with described buffer, and described the first comparer generates the first comparison signal according to the type of described data;
The second comparer, described the second comparer is connected with described buffer, and described the second comparer generates the second comparison signal according to the cycle of described data;
The 3rd comparer, described the 3rd comparer is connected with described buffer, and described the 3rd comparer generates the 3rd comparison signal according to the dutycycle of described data;
Processor, described processor is connected with described the first comparer, the second comparer and the 3rd comparer, and described processor is according to described the first comparison signal, the second comparison signal and the 3rd comparison signal judgement communication failure type.
3. air-condition faults detection system as claimed in claim 1, is characterized in that, also comprises:
Electric current loop asynchronous serial communication device, described electric current loop asynchronous serial communication device is connected between described indoor set and described off-premises station.
4. air-condition faults detection system as claimed in claim 1, is characterized in that, described air-condition faults pick-up unit is integrated in the controller of described off-premises station.
5. air-condition faults detection system as claimed in claim 2, is characterized in that, described air-condition faults pick-up unit also comprises:
Display, described display is connected with described processor, described display display communication fault type.
6. an air-condition faults pick-up unit, is characterized in that, comprising:
Buffer, described buffer is connected with connection terminal, and described buffer buffer memory indoor set is sent to the data of off-premises station;
The first comparer, described the first comparer is connected with described buffer, and described the first comparer generates the first comparison signal according to the type of described data;
The second comparer, described the second comparer is connected with described buffer, and described the second comparer generates the second comparison signal according to the cycle of described data;
The 3rd comparer, described the 3rd comparer is connected with described buffer, and described the 3rd comparer generates the 3rd comparison signal according to the dutycycle of described data;
Processor, described processor is connected with described the first comparer, the second comparer and the 3rd comparer, and described processor judges the communication failure type between described indoor set and off-premises station according to described the first comparison signal, the second comparison signal and the 3rd comparison signal.
7. air-condition faults pick-up unit as claimed in claim 6, is characterized in that, also comprises:
Display, described display is connected with described processor, and described display shows described communication failure type.
8. air-condition faults pick-up unit as claimed in claim 6, is characterized in that, described air-condition faults pick-up unit is integrated in the controller of described off-premises station.
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| CN201320510517.6U CN203455433U (en) | 2013-08-20 | 2013-08-20 | Air conditioner fault detection device and air conditioner fault detection system comprising same |
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| CN201320510517.6U CN203455433U (en) | 2013-08-20 | 2013-08-20 | Air conditioner fault detection device and air conditioner fault detection system comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104034998A (en) * | 2014-06-20 | 2014-09-10 | 珠海格力电器股份有限公司 | Diagnosis method and system for wrong connection of internal and external machine connecting wires of fixed-frequency air conditioner |
| CN105223428A (en) * | 2014-06-20 | 2016-01-06 | 青岛海尔科技有限公司 | A kind of air-condition faults pick-up unit, method and system |
| CN105319452A (en) * | 2014-07-08 | 2016-02-10 | 中国移动通信集团浙江有限公司 | Air conditioner power supply state alarm detection method and device |
| CN105717397A (en) * | 2016-04-08 | 2016-06-29 | 珠海格力电器股份有限公司 | Air conditioner communication fault detection method and system |
| CN105807160A (en) * | 2016-03-15 | 2016-07-27 | 四川长虹电器股份有限公司 | Method for displaying faults through LED lamps |
| CN104061655B (en) * | 2014-06-16 | 2017-01-18 | 广东美的集团芜湖制冷设备有限公司 | Failure detection method and failure detection device for air conditioner refrigerating system and air conditioner |
| CN107085163A (en) * | 2017-05-11 | 2017-08-22 | 广东志高暖通设备股份有限公司 | A kind of single-phase air conditioning wiring detection method and system |
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| CN110925961A (en) * | 2019-11-26 | 2020-03-27 | 格力电器（重庆）有限公司 | On-site fault detection system and method for air conditioner |
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| CN105223428A (en) * | 2014-06-20 | 2016-01-06 | 青岛海尔科技有限公司 | A kind of air-condition faults pick-up unit, method and system |
| CN104034998A (en) * | 2014-06-20 | 2014-09-10 | 珠海格力电器股份有限公司 | Diagnosis method and system for wrong connection of internal and external machine connecting wires of fixed-frequency air conditioner |
| CN104034998B (en) * | 2014-06-20 | 2017-01-18 | 珠海格力电器股份有限公司 | Diagnosis method and system for wrong connection of internal and external machine connecting wires of fixed-frequency air conditioner |
| CN105319452A (en) * | 2014-07-08 | 2016-02-10 | 中国移动通信集团浙江有限公司 | Air conditioner power supply state alarm detection method and device |
| CN105807160A (en) * | 2016-03-15 | 2016-07-27 | 四川长虹电器股份有限公司 | Method for displaying faults through LED lamps |
| CN105717397A (en) * | 2016-04-08 | 2016-06-29 | 珠海格力电器股份有限公司 | Air conditioner communication fault detection method and system |
| CN105717397B (en) * | 2016-04-08 | 2018-12-11 | 珠海格力电器股份有限公司 | Air conditioner communication fault detection method and system |
| CN107085163A (en) * | 2017-05-11 | 2017-08-22 | 广东志高暖通设备股份有限公司 | A kind of single-phase air conditioning wiring detection method and system |
| CN109974196A (en) * | 2019-04-08 | 2019-07-05 | 珠海格力电器股份有限公司 | Frequency converter set communication control method and device and frequency converter set system |
| CN109974196B (en) * | 2019-04-08 | 2020-08-07 | 珠海格力电器股份有限公司 | Frequency converter set communication control method and device and frequency converter set system |
| CN110154676A (en) * | 2019-05-05 | 2019-08-23 | 广东美的制冷设备有限公司 | Air-conditioning indoor and outdoor machine Wiring detection method, air condition with camion and its power supply unit |
| CN110154676B (en) * | 2019-05-05 | 2020-12-11 | 广东美的制冷设备有限公司 | Air conditioner indoor and outdoor unit wiring detection method, vehicle-mounted air conditioner and power supply device thereof |
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