CN108592293B - Air conditioner fault detection device and detection method - Google Patents

Air conditioner fault detection device and detection method Download PDF

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Publication number
CN108592293B
CN108592293B CN201810397328.XA CN201810397328A CN108592293B CN 108592293 B CN108592293 B CN 108592293B CN 201810397328 A CN201810397328 A CN 201810397328A CN 108592293 B CN108592293 B CN 108592293B
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outdoor unit
indoor unit
module
communication circuit
detection information
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CN108592293A (en
Inventor
石泽发
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Sichuan Hongmei Intelligent Technology Co Ltd
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Sichuan Hongmei Intelligent Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

Abstract

The invention provides an air conditioner fault detection device and a detection method, wherein the device comprises: the indoor unit communication circuit module comprises a communication circuit corresponding to the air-conditioning indoor unit electric control board; the outdoor unit communication circuit module comprises a communication circuit corresponding to the electric control panel of the outdoor unit of the air conditioner; the indoor unit communication circuit module is used for communicating with the outdoor unit under the control of the processing module; the outdoor unit communication circuit module is used for communicating with the indoor unit under the control of the processing module; the processing module is used for sending outdoor unit detection information to the display module according to the result of the communication between the indoor unit communication circuit module and the outdoor unit, and sending indoor unit detection information to the display module according to the result of the communication between the outdoor unit communication circuit module and the indoor unit; the display module is used for displaying outdoor unit detection information and indoor unit detection information. This scheme can improve the efficiency of carrying out the detection to air conditioner trouble.

Description

Air conditioner fault detection device and detection method
Technical Field
The invention relates to the technical field of electrical engineering, in particular to an air conditioner fault detection device and a detection method.
Background
An air conditioner is a short term air conditioner and is used for adjusting and controlling parameters such as temperature, humidity, cleanliness, speed and the like of ambient air in a building/structure so as to meet the requirements of users on comfort or equipment on an operating environment. The air conditioner generally comprises an indoor unit and an outdoor unit, wherein the indoor unit and the outdoor unit can perform information interaction so as to realize adjustment of indoor air parameters in a mutual matching manner. Since the air conditioner adjusts the air parameters as a result of the cooperation between the indoor unit and the outdoor unit, the failure of the air conditioner may be caused by the abnormality of the indoor unit or the abnormality of the outdoor unit.
Some faults occurring in the air conditioner cannot be directly determined to be caused by the abnormality of the indoor unit or the outdoor unit, such as communication faults, and the current detection method for the faults comprises the following steps: and after the electric control board of the indoor unit or the outdoor unit is replaced randomly, judging whether the air conditioner fault is solved, if the fault is still not solved, replacing the electric control board again for the outdoor unit or the indoor unit without replacing the electric control board.
In the existing method for detecting air conditioner faults, because the communication faults can not directly determine whether the fault cause is the abnormity of the outdoor unit or the abnormity of the indoor unit, the indoor unit or an electric control board of the outdoor unit needs to be replaced randomly. Because the original normal electric control board may be replaced by randomly replacing the electric control board, the electric control board needs to be replaced at least once in the process of fault detection of the air conditioner, and the indoor unit or the outdoor unit needs to be dismounted when the electric control board is replaced each time, so that a long time is needed to determine whether the reason of the air conditioner fault is that the indoor unit is abnormal or the outdoor unit is abnormal, and the efficiency of detecting the air conditioner fault is low.
Disclosure of Invention
The embodiment of the invention provides an air conditioner fault detection device and a detection method, which can improve the efficiency of detecting air conditioner faults.
In a first aspect, an embodiment of the present invention provides an air conditioner fault detection apparatus, including: the indoor unit communication circuit module, the outdoor unit communication circuit module, the processing module and the display module;
the indoor unit communication circuit module comprises a communication circuit corresponding to the air-conditioning indoor unit electric control board;
the outdoor unit communication circuit module comprises a communication circuit corresponding to the electric control panel of the outdoor unit of the air conditioner;
the indoor unit communication circuit module is used for being connected with an outdoor unit of an air conditioner to be detected and communicating with the outdoor unit under the control of the processing module;
the outdoor unit communication circuit module is used for being connected with the indoor unit of the air conditioner to be detected and communicating with the indoor unit under the control of the processing module;
the processing module is used for controlling the indoor unit communication circuit module to communicate with the outdoor unit, sending outdoor unit detection information to the display module according to a communication result, controlling the outdoor unit communication circuit module to communicate with the indoor unit, and sending indoor unit detection information to the display module according to a communication result;
and the display module is used for displaying the outdoor unit detection information and the indoor unit detection information.
Alternatively,
the processing module is used for controlling the indoor unit communication circuit module to send a first detection signal to the outdoor unit and judging whether the indoor unit communication circuit module receives a first feedback signal sent by the outdoor unit aiming at the first detection signal, if so, sending first outdoor unit detection information prompting normal communication of the outdoor unit to the display module, and otherwise, sending second outdoor unit detection information prompting abnormal communication of the outdoor unit to the display module;
the processing module is further configured to send a start instruction to the outdoor unit through the indoor unit communication circuit module according to external triggering after the indoor unit communication circuit module is determined to receive the first feedback signal, and determine whether the outdoor unit is normally started and operated, if so, send third outdoor unit detection information prompting that the outdoor unit is normally operated to the display module, and otherwise, send fourth outdoor unit detection information prompting that the outdoor unit is abnormally operated to the display module;
and the display module is used for displaying the received first outdoor unit detection information, second outdoor unit detection information, third outdoor unit detection information and fourth outdoor unit detection information.
Alternatively,
the processing module is configured to obtain an outdoor temperature value sent by the outdoor unit to the indoor unit communication circuit module, and send a cooling mode starting instruction to the outdoor unit through the indoor unit communication circuit module if the outdoor temperature value is greater than a preset temperature threshold value, or send a heating mode starting instruction to the outdoor unit through the indoor unit communication circuit module, where the cooling mode starting instruction is used to control the outdoor unit to operate in a cooling mode, and the heating mode starting instruction is used to control the outdoor unit to operate in a heating mode.
Alternatively,
the processing module is used for controlling the outdoor unit communication circuit module to send a second detection signal to the indoor unit and judging whether the outdoor unit communication circuit module receives a second feedback signal sent by the indoor unit aiming at the second detection signal, if so, sending first indoor unit detection information prompting normal communication of the indoor unit to the display module, and otherwise, sending second indoor unit detection information prompting abnormal communication of the indoor unit to the display module;
the processing module is further configured to send a start instruction to the indoor unit through the outdoor unit communication circuit module according to external triggering after the outdoor unit communication circuit module is determined to receive the second feedback signal, and determine whether the indoor unit is normally started and operated, if so, send third indoor unit detection information prompting that the indoor unit is normally operated to the display module, and otherwise, send fourth indoor unit detection information prompting that the indoor unit is abnormally operated to the display module;
the display module is used for displaying the received first indoor unit detection information, second indoor unit detection information, third indoor unit detection information and fourth indoor unit detection information.
Alternatively,
the air conditioner fault detection apparatus further includes: a power supply module;
the power supply module is respectively connected with the indoor unit communication circuit module and the processing module;
and the power supply module is used for supplying power to the indoor unit communication circuit module, the processing module and the outdoor unit after the indoor unit communication circuit module is connected with the outdoor unit.
Alternatively,
the processing module is further configured to send fault detail information corresponding to the fault code to the display module according to external triggering after the display module displays the fault code carried by the outdoor unit detection information or the indoor unit detection information, where the fault detail information includes any one or more of fault description information, recommended solution information, and detailed information of the object to be tested;
the display module is further configured to display the received fault detail information.
In a second aspect, an embodiment of the present invention further provides an air conditioner fault detection method based on any one of the air conditioner fault detection apparatuses provided in the first aspect, including:
connecting an outdoor unit of an air conditioner to be detected with the indoor unit communication circuit module, controlling the indoor unit communication circuit module to communicate with the outdoor unit by using the processing module, and displaying outdoor unit detection information corresponding to a communication result by using the display module;
and connecting the indoor unit of the air conditioner to be detected with the outdoor unit communication circuit module, controlling the outdoor unit communication circuit module to communicate with the indoor unit by using the processing module, and displaying indoor unit detection information corresponding to a communication result by using the display module.
Optionally, the controlling, by the processing module, the indoor unit communication circuit module to communicate with the outdoor unit, and displaying, by the display module, outdoor unit detection information corresponding to a communication result includes:
a1: the processing module is used for controlling the indoor unit communication circuit module to send a first detection signal to the outdoor unit;
a2: judging whether the indoor unit communication circuit module receives a first feedback signal sent by the outdoor unit aiming at the first detection signal or not by using the processing module, if so, executing A4, otherwise, executing A3;
a3: sending second outdoor unit detection information prompting the abnormal communication of the outdoor unit to the display module by using the processing module, displaying the second outdoor unit detection information by using the display module, and ending the current process;
a4: sending first outdoor unit detection information prompting normal communication of the outdoor unit to the display module by using the processing module, and displaying the first outdoor unit detection information by using the display module;
a5: according to external triggering, the processing module is utilized to send a starting instruction to the outdoor unit through the indoor unit communication circuit module;
a6: judging whether the outdoor unit is normally started to operate by using the processing module, if so, executing A7, otherwise, executing A8;
a7: sending third outdoor unit detection information prompting normal operation of the outdoor unit to the display module by using the processing module, displaying the third outdoor unit detection information by using the display module, and finishing the current process;
a8: and sending fourth outdoor unit detection information prompting the abnormal operation of the outdoor unit to the display module by utilizing the processing module, and displaying the fourth outdoor unit detection information by utilizing the display module.
Optionally, the controlling, by the processing module, the outdoor unit communication circuit module to communicate with the indoor unit, and displaying, by the display module, indoor unit detection information corresponding to a communication result includes:
b1: the processing module is used for controlling the outdoor unit communication circuit module to send a second detection signal to the indoor unit;
b2: judging whether the outdoor unit communication circuit module receives a second feedback signal sent by the indoor unit aiming at the second detection signal, if so, executing B4, otherwise, executing B3;
b3: sending second indoor unit detection information prompting the indoor unit to be abnormal in communication to the display module by using the processing module, displaying the second indoor unit detection information by using the display module, and finishing the current process;
b4: sending first indoor unit detection information prompting normal communication of the indoor unit to the display module by using the processing module, and displaying the first indoor unit detection information by using the display module;
b5: according to external triggering, the processing module is utilized to send a starting instruction to the indoor unit through the outdoor unit communication circuit module;
b6: judging whether the indoor unit is normally started to operate by using the processing module, if so, executing A7, otherwise, executing A8;
a7: sending third indoor unit detection information prompting normal operation of the indoor unit to the display module by using the processing module, displaying the third indoor unit detection information by using the display module, and finishing the current process;
a8: and sending fourth indoor unit detection information prompting abnormal operation of the indoor unit to the display module by using the processing module, and displaying the fourth indoor unit detection information by using the display module.
Alternatively,
the displaying of the outdoor unit detection information corresponding to the communication result by using the display module includes:
displaying a first fault code carried by the outdoor unit detection information by using the display module;
correspondingly, after the displaying the outdoor unit detection information corresponding to the communication result by using the display module, the method further comprises:
sending first fault detail information corresponding to the first fault code to the display module according to external triggering by using the processing module, wherein the first fault detail information comprises any one or more of fault description information, suggested solution information and detailed information of the outdoor unit;
and displaying the first fault detail information by using the display module.
Alternatively,
the displaying of the indoor unit detection information corresponding to the communication result by using the display module includes:
displaying a second fault code carried by the indoor unit detection information by using the display module;
correspondingly, after the displaying the indoor unit detection information corresponding to the communication result by using the display module, the method further comprises the following steps:
sending second fault detail information corresponding to the second fault code to the display module by using the processing module according to external triggering, wherein the second fault detail information comprises any one or more of fault description information, suggested solution information and detailed information of the indoor unit;
and displaying the second fault detail information by using the display module.
According to the air conditioner fault detection device and the detection method provided by the embodiment of the invention, the indoor unit communication circuit module comprises a communication circuit corresponding to the air conditioner indoor unit electric control board, and the outdoor unit communication circuit module comprises a communication circuit corresponding to the air conditioner outdoor unit electric control board. After the indoor unit communication circuit module is connected with an outdoor unit of the air conditioner to be detected, the processing module can communicate with the outdoor unit through the indoor unit communication circuit module and can send outdoor unit detection information to the display module according to a communication result, and therefore a user can determine whether the outdoor unit is abnormal or not according to the outdoor unit detection information displayed by the display module. After the outdoor unit communication circuit module is connected with the indoor unit of the air conditioner to be detected, the processing module can communicate with the indoor unit through the outdoor unit communication circuit module and can send indoor unit detection information to the display module according to a communication result, and therefore a user can determine whether the indoor unit is abnormal or not according to the indoor unit detection information displayed by the display module. Therefore, the communication circuit module of the indoor unit is connected with the outdoor unit of the air conditioner, so that the communication between the indoor unit and the outdoor unit of the air conditioner can be simulated to detect whether the outdoor unit of the air conditioner is abnormal or not, the communication circuit module of the outdoor unit is connected with the indoor unit of the air conditioner, so that the communication between the outdoor unit and the indoor unit of the air conditioner can be simulated to detect whether the indoor unit of the air conditioner is abnormal or not, and the abnormity of the indoor unit or the abnormity of the outdoor unit is determined without disassembling and assembling an electric control board, so that the efficiency of detecting the fault.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an air conditioner fault detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of another air conditioner fault detection apparatus provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of another air conditioner fault detection apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart of an air conditioner fault detection method according to an embodiment of the present invention;
fig. 5 is a flowchart of an outdoor unit fault detection method according to an embodiment of the present invention;
fig. 6 is a flowchart of an indoor unit fault detection method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an air conditioner fault detection apparatus, which may include: the indoor unit communication circuit module 10, the outdoor unit communication circuit module 20, the processing module 30 and the display module 40;
the indoor unit communication circuit module 10 comprises a communication circuit corresponding to an electric control board of the indoor unit of the air conditioner;
the outdoor unit communication circuit module 20 includes a communication circuit corresponding to the electric control board of the outdoor unit of the air conditioner;
the indoor unit communication circuit module 10 is used for being connected with an outdoor unit of an air conditioner to be detected and communicating with the outdoor unit under the control of the processing module 30;
the outdoor unit communication circuit module 20 is used for being connected with an indoor unit of an air conditioner to be detected and communicating with the indoor unit under the control of the processing module 30;
the processing module 30 is used for controlling the indoor unit communication circuit module 10 to communicate with the outdoor unit and send outdoor unit detection information to the display module 40 according to the communication result, and controlling the outdoor unit communication circuit module 20 to communicate with the indoor unit and send indoor unit detection information to the display module 40 according to the communication result;
and the display module 40 is used for displaying the outdoor unit detection information and the indoor unit detection information.
The embodiment of the invention provides an air conditioner fault detection device, wherein an indoor unit communication circuit module comprises a communication circuit corresponding to an electric control board of an indoor unit of an air conditioner, and an outdoor unit communication circuit module comprises a communication circuit corresponding to the electric control board of an outdoor unit of the air conditioner. After the indoor unit communication circuit module is connected with an outdoor unit of the air conditioner to be detected, the processing module can communicate with the outdoor unit through the indoor unit communication circuit module and can send outdoor unit detection information to the display module according to a communication result, and therefore a user can determine whether the outdoor unit is abnormal or not according to the outdoor unit detection information displayed by the display module. After the outdoor unit communication circuit module is connected with the indoor unit of the air conditioner to be detected, the processing module can communicate with the indoor unit through the outdoor unit communication circuit module and can send indoor unit detection information to the display module according to a communication result, and therefore a user can determine whether the indoor unit is abnormal or not according to the indoor unit detection information displayed by the display module. Therefore, the communication circuit module of the indoor unit is connected with the outdoor unit of the air conditioner, so that the communication between the indoor unit and the outdoor unit of the air conditioner can be simulated to detect whether the outdoor unit of the air conditioner is abnormal or not, the communication circuit module of the outdoor unit is connected with the indoor unit of the air conditioner, so that the communication between the outdoor unit and the indoor unit of the air conditioner can be simulated to detect whether the indoor unit of the air conditioner is abnormal or not, and the abnormity of the indoor unit or the abnormity of the outdoor unit is determined without disassembling and assembling an electric control board, so that the efficiency of detecting the fault.
Alternatively, on the basis of the air conditioner fault detection apparatus shown in fig. 1, when detecting whether an outdoor unit of an air conditioner is abnormal, the processing module 30 may control the indoor unit communication circuit module 10 to send a first detection signal to the outdoor unit of the air conditioner, then the indoor unit communication circuit module 10 may receive a first feedback signal sent by the outdoor unit of the air conditioner for the first detection signal, when the processing module 30 determines that the indoor unit communication circuit module 10 receives the first feedback signal, the processing module 30 sends first outdoor unit detection information indicating that outdoor unit communication is normal to the display module 40, and when the processing module 30 determines that the indoor unit communication circuit module 10 does not receive the first feedback signal, the processing module 30 sends second outdoor unit detection information indicating that outdoor unit communication is abnormal to the display module 40.
After the processing module 30 determines that the indoor unit communication circuit module 10 receives the first feedback signal, the processing module 30 further sends a start instruction to the outdoor unit of the air conditioner through the indoor unit communication circuit module 10, and determines whether the outdoor unit of the air conditioner is normally started and moved, if so, sends third outdoor unit detection information prompting that the outdoor unit is normally operated to the display module 40, and otherwise, sends fourth outdoor unit detection information prompting that the outdoor unit is abnormally operated to the display module 40.
The display module 40 is configured to display the received outdoor unit detection information, for example, the received outdoor unit detection information is displayed in the form of an indicator light, a display screen, or a voice broadcast.
After the processing module sends the first detection signal to the outdoor unit of the air conditioner through the indoor unit communication circuit module, if the indoor unit communication circuit module can receive a first feedback signal sent by the outdoor unit aiming at the first detection signal, the communication function of the outdoor unit is not abnormal, the processing module can normally receive the signal and can normally send the signal. After determining that the communication function of the outdoor unit is not abnormal, the processing module further sends a starting instruction to the outdoor unit through the indoor unit communication circuit module, if the outdoor unit can be normally started and operated, it is indicated that neither the outdoor unit communication function nor the working operation function is abnormal, and the reason for causing the air conditioner fault comes from the indoor unit.
When the user detects the outdoor unit of the air conditioner through the air conditioner fault detection device, whether the outdoor unit of the air conditioner is normal or not can be judged according to the information displayed by the display module. Specifically, if the display module displays the detection information of the first outdoor unit, it indicates that the communication function of the outdoor unit is normal; if the display module displays the detection information of the second outdoor unit, the communication function of the outdoor unit is abnormal; if the display module displays the detection information of the third outdoor unit, the outdoor unit can normally operate; and if the display module displays the detection information of the fourth outdoor unit, the outdoor unit cannot normally operate. For example, after the display module sequentially displays the first outdoor unit detection information and the third outdoor unit detection information, the user may determine that neither the communication function nor the working operation function of the outdoor unit is abnormal.
The processing module sends a first detection signal and a starting instruction to an outdoor unit of the air conditioner in sequence through the indoor unit communication circuit module, can respectively detect that the communication function and the working operation function of the outdoor unit are normal, and guarantees comprehensiveness of detection on the outdoor unit.
Optionally, since the air conditioner generally has a cooling function and a heating function, when the processing module sends a start instruction to the outdoor unit of the air conditioner through the indoor unit communication circuit module, it is necessary to make sure that the start instruction is of a type, so that the outdoor unit can operate in a heating mode or a cooling mode according to the received start instruction. Therefore, after receiving a first detection signal sent by an indoor unit communication circuit module, an outdoor unit of the air conditioner can send a detected outdoor temperature value to the indoor unit communication circuit module through a first feedback signal, a processing module judges whether the obtained outdoor temperature value is larger than a preset temperature threshold value or not after obtaining the outdoor temperature value sent by the outdoor unit from the indoor unit communication circuit module, if so, the processing module sends a cooling mode starting instruction to the outdoor unit through the indoor unit communication circuit module, and otherwise, the processing module sends a heating mode starting instruction to the outdoor unit through the outdoor unit communication circuit module. The outdoor unit can operate according to the cooling mode after receiving the cooling mode starting instruction, and correspondingly, the outdoor unit can operate according to the heating mode after receiving the heating mode starting instruction.
Because the outdoor units of the air conditioner are provided with the temperature sensors, when the communication function of the outdoor units is detected, the outdoor units send the detected outdoor temperature values to the indoor unit communication circuit module through the first feedback signals, so that the processing module can obtain the outdoor temperature values from the indoor unit communication circuit module, and corresponding refrigerating mode starting instructions or heating mode starting instructions can be sent to the outdoor units according to the outdoor temperature values. Therefore, the outdoor unit detects the outdoor temperature and sends the detected outdoor temperature value to the indoor unit communication circuit module, the processing module obtains the outdoor temperature value from the indoor unit communication circuit module and sends a corresponding type of starting instruction to the outdoor unit according to the outdoor temperature value, and a temperature sensor does not need to be arranged in the air conditioner fault detection device provided by the embodiment of the invention, so that the air conditioner fault detection device provided by the embodiment of the invention has a more simplified structure and lower cost.
When the working operation function of the outdoor unit is abnormal, the cooling function or the heating function corresponding to the outdoor temperature is abnormal, for example, the working operation function of the outdoor unit in winter is abnormal, and the working operation function of the outdoor unit in summer is abnormal, for example, the cooling function is abnormal, for this reason, the processing module sends a corresponding cooling mode starting instruction or a heating mode starting instruction to the outdoor unit according to the outdoor temperature value, so as to detect the cooling function or the heating function corresponding to the outdoor unit, thereby ensuring that the abnormality of the working operation function of the outdoor unit can be accurately detected, and ensuring the accuracy of the detection of the outdoor unit.
Alternatively, on the basis of the air conditioner fault detection apparatus shown in fig. 1, when detecting whether an indoor unit of an air conditioner is abnormal, the processing module 30 may control the outdoor unit communication circuit module 20 to send a second detection signal to the indoor unit of the air conditioner, then the outdoor unit communication circuit module 20 may receive a second feedback signal sent by the indoor unit of the air conditioner for the second detection signal, when the processing module 30 determines that the outdoor unit communication circuit module 20 receives the second feedback signal, the processing module 30 sends first indoor unit detection information indicating that the indoor unit is in normal communication to the display module 40, and when the processing module 30 determines that the outdoor unit communication circuit module 20 does not receive the second feedback signal, the processing module 30 sends second indoor unit detection information indicating that the indoor unit is in abnormal communication to the display module 40.
After the processing module 30 determines that the outdoor unit communication circuit module 20 receives the second feedback signal, the processing module 30 further sends a start instruction to the indoor unit of the air conditioner through the outdoor unit communication circuit module 20, and determines whether the indoor unit of the air conditioner is normally started and operated, if so, the processing module 30 sends third indoor unit detection information prompting that the indoor unit is normally operated to the display module 40, otherwise, fourth indoor unit detection information prompting that the indoor unit is abnormally operated is sent to the display module 40.
The display module 40 is configured to display the received indoor unit detection information, for example, the received indoor unit detection information is displayed in the form of an indicator light, a display screen, or voice broadcast.
After the processing module sends the second detection signal to the indoor unit of the air conditioner through the outdoor unit communication circuit module, if the outdoor unit communication circuit module can receive a second feedback signal sent by the indoor unit aiming at the second detection signal, the communication function of the indoor unit is not abnormal, the processing module can normally receive the signal and can also normally send the signal. After determining that the communication function of the indoor unit is not abnormal, the processing module further sends a starting instruction to the indoor unit through the outdoor unit communication circuit module, if the indoor unit can be started and operated normally, it is indicated that neither the communication function nor the working operation function of the indoor unit is abnormal, and the reason for causing the air conditioner fault comes from the outdoor unit.
When the user detects the indoor unit of the air conditioner through the air conditioner fault detection device provided by the embodiment of the invention, whether the indoor unit is normal can be judged according to the information displayed by the display module. Specifically, if the display module displays the detection information of the first indoor unit, it indicates that the communication function of the indoor unit is normal; if the display module displays the detection information of the second indoor unit, the communication function of the indoor unit is abnormal; if the display module displays the detection information of the third indoor unit, the indoor unit can normally operate; and if the display module displays the detection information of the fourth indoor unit, the indoor unit cannot normally operate. For example, after the display module sequentially displays the first indoor unit detection information and the fourth indoor unit detection information, the user may determine that the communication function of the indoor unit is normal, but the working operation function of the indoor unit is abnormal.
The processing module is mainly used for controlling the movement of components such as a fan, a wind shield, a wind deflector and the like of the indoor unit through a starting instruction sent to the indoor unit by the outdoor unit communication circuit module.
Optionally, on the basis of the air conditioner fault detection device shown in fig. 1, as shown in fig. 2, the air conditioner fault detection device may further include a power supply module 50, where the power supply module 50 is connected to the indoor unit communication circuit module 10 and the processing module 30, respectively. The power supply module 50 is used for supplying power to the indoor unit communication circuit module 10, the processing module 30 and the outdoor unit connected with the indoor unit communication circuit module 10 after the indoor unit communication circuit module 10 is connected with the outdoor unit of the air conditioner to be detected.
The air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit is connected with commercial power according to conditions, the indoor unit is connected with the outdoor unit through a cable, and electric energy required by the work of the outdoor unit is transmitted to the outdoor unit through the indoor unit. When the indoor unit of the air conditioner needs to be detected, a connecting port between the indoor unit and the outdoor unit is disconnected, the indoor unit is connected with the outdoor unit communication circuit module, electric energy required by the working of the indoor unit is directly obtained from commercial power due to the fact that the indoor unit is directly connected with the commercial power, in addition, the indoor unit can also provide electric energy required by the working of the indoor unit communication circuit module, the processing module and the display module through the connected outdoor unit communication circuit module, and the power supply module does not work at the moment. When the outdoor unit of the air conditioner needs to be detected, the connection port between the indoor unit and the outdoor unit is disconnected, the outdoor unit is connected with the indoor unit communication circuit module, and the indoor unit cannot supply power to the outdoor unit, so that the power supply module needs to supply power to the indoor unit electrifying circuit module, the processing module and the display module, and specifically, the electric energy required by the display module can be supplied from the processing module.
When the indoor unit of the air conditioner is detected, the electric power connected with the indoor unit provides electric energy required by the work of the indoor unit, the outdoor unit communication circuit module, the processing module and the display module, when the outdoor unit of the air conditioner is detected, the power supply module provides electric energy required by the work of the outdoor unit, the indoor unit communication circuit module, the processing module and the display module, and the power supply module can obtain the electric energy from the connected electric power. The power supply module only works when the outdoor unit is detected, the power required by the work of the outdoor unit of the indoor unit communication circuit module, the processing module and the display module is provided, the power required by the work of the outdoor unit communication circuit module, the processing module and the display module is provided by the indoor unit when the indoor unit is detected, so that the power supply in the air conditioner fault detection process is more reasonable, the power supply module can supply power in a single direction, the power supply module can be ensured to have a simpler circuit structure, the requirements on components in the power supply module are lower, and the cost of the air conditioner fault detection device provided by the embodiment of the invention is favorably reduced.
Optionally, on the basis of the air conditioner fault detection apparatus shown in fig. 1 or fig. 2, when the display module 40 displays outdoor unit detection information or indoor unit detection information, the display module mainly displays fault codes carried by the outdoor unit detection information or the indoor unit detection information, after the display module 40 displays corresponding fault codes, the processing module 30 may send fault detail information corresponding to the fault codes displayed by the display module 40 to the display module 40 according to external trigger, and the display module 40 may display the received fault detail information. The fault detail information sent by the processing module 30 to the display module 40 includes fault description information corresponding to the fault code, suggested solution information, and detail information of the object to be tested.
When the outdoor unit of the air conditioner is detected, the processing module sends one or more outdoor unit detection information to the display module according to the detection results of the communication function and the work operation function of the outdoor unit, if the outdoor unit detection information represents that the corresponding function of the outdoor unit is normal, the display module displays a code representing that the corresponding function is not abnormal, and if the outdoor unit detection information represents that the corresponding function of the outdoor unit is abnormal, the display module displays a fault code representing that the corresponding function is abnormal. For example, the display module displays "OK" after receiving the first outdoor unit detection information or the third outdoor unit detection information, displays the fault code 101 after receiving the second outdoor unit detection information, and displays the fault codes 201, 202, and 203 according to the difference of the outdoor unit operation abnormality after receiving the fourth outdoor unit detection information.
After the display module displays a fault code of the outdoor unit, a user can select to display corresponding fault description information, suggested solution information and detailed information of the tested outdoor unit, the processing module sends corresponding fault detail information to the display module according to the selection of the user, and the display module can display the received fault detail information. For example, after the display module displays the fault code 201, and the user selects suggested solution information through cases such as page turning up and down, confirmation, return and the like set on the air conditioner fault detection device, the processing module sends the suggested solution information corresponding to the fault code 201 to the display module, and the display module displays the suggested solution information corresponding to the fault code 201.
In the process of detecting the indoor unit, the working processes of the processing module and the display module are similar to the process of detecting the outdoor unit, and are not described herein again.
When the fault of the indoor unit or the outdoor unit of the air conditioner is detected, the display module displays the corresponding fault code, and a user can trigger the display module to display fault description information, suggested solution information and detailed information of the detected object corresponding to the fault code, so that the user can determine the fault of the indoor unit or the outdoor unit more visually, and can take corresponding measures to maintain the indoor unit or the outdoor unit according to the suggested solution information displayed by the display module, and the use experience of the user can be improved.
Optionally, on the basis of the air conditioner fault detection device shown in fig. 1, as shown in fig. 3, the indoor unit communication circuit module 10 includes a first connection terminal, 11 resistors, 6 capacitors, 5 diodes, 2 optocouplers, and 1 triode, and the outdoor unit communication circuit module 20 includes a second connection terminal, 8 resistors, 6 capacitors, 3 diodes, 2 optocouplers, and a triode.
The connection mode of each element in the indoor unit communication circuit module 10 is as follows:
a live wire connecting end L of the first connecting terminal A1 is connected with one end of a first resistor R1, the other end of the first resistor R2 is connected with one end of a second resistor R2, the other end of the second resistor R2 is connected with one end of a third resistor R3, the other end of the third resistor R3 is connected with the anode of a second diode D2, and the cathode of the second diode D2 is connected with a response input end of a first optocoupler O1;
the anode of a first diode (light emitting diode) D1 is connected with the live wire connecting end L of the first connecting terminal A1, the cathode of the first diode D1 is connected with one end of a fourth resistor R4, and the other end of the fourth resistor R4 is connected with the zero line connecting end N of the first connecting terminal A1;
the anode of the third diode D3 is connected with the neutral line connection end N of the first connection terminal a1, and the cathode of the third diode D3 is connected with the cathode of the second diode D2;
the first capacitor C1, the fifth resistor R5 and the second capacitor C2 are connected in parallel, and two ends of the first capacitor C1, the fifth resistor R5 and the second capacitor C2 are respectively connected with the anode and the cathode of the third diode D3;
a signal wire connecting end S1 of the first wiring terminal A1 is connected with one end of a sixth resistor R6, the other end of the sixth resistor R6 is connected with one end of a seventh resistor R7, the other end of the seventh resistor R7 is connected with the cathode of a fifth diode D5, the anode of the fifth diode D5 is connected with one end of an eighth resistor R8, and the other end of the eighth resistor R8 is respectively connected with a response output end of a first optical coupler O1 and an excitation input end of a second optical coupler O2;
one end of a third capacitor C3 is connected with the cathode of a fifth diode D5, and the other end of the third capacitor C3 is connected with a zero line connecting end N of a first connecting terminal A1;
the anode of the fourth diode D4 is connected to the neutral line connection N of the first connection terminal a1, and the cathode of the fourth diode D4 is connected to the cathode of the fifth diode D5;
an excitation input end of the first optocoupler O1 is connected with a voltage output end VCC of the switching power supply 70, one end of a fourth capacitor C4 is connected with an excitation input end of the first optocoupler O1, and the other end of the fourth capacitor C4 is grounded;
an excitation output end of the first optocoupler O1 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with a collector of a first triode Q1(NPN type), an emitter of the first triode Q1 is grounded, and a base of the first triode Q1 is connected with an outdoor unit signal sending interface a on the processing module 30;
an excitation output end of the second optical coupler O2 is connected with an anode of the fifth diode D5, a response input end of the second optical coupler O2 is respectively connected with one end of a tenth resistor R10 and one end of an eleventh resistor R11, the other end of the tenth resistor R10 is connected with a voltage output end VCC of the switching power supply 70, and the other end of the eleventh resistor R11 is connected with an outdoor unit signal receiving interface b on the processing module 30;
the response output end of the second optical coupler O2 is grounded and is respectively connected with one end of a fifth capacitor C5 and one end of a sixth capacitor C6, the other end of the fifth capacitor C5 is connected with the response input end of the second optical coupler O2, and the other end of the sixth capacitor C6 is connected with the other end of an eleventh resistor R11.
The connection method of each element in the outdoor unit communication circuit module 20 is as follows:
a live wire connecting end L and a zero line connecting end N of the second connecting terminal a2 are respectively connected with the rectifier bridge 60, the zero line connecting end N of the second connecting terminal a2 is connected with the cathode of a sixth diode (light emitting diode) D6, and the anode of the sixth diode D6 is connected with one end of a nineteenth resistor R19;
a signal wire connecting end S2 of the second connecting terminal A2 is connected with one end of a twelfth resistor (thermistor) R12, the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected with the anode of a seventh diode D7, and the cathode of the seventh diode D7 is connected with an excitation input end of a third optocoupler O3;
two ends of the fourteenth resistor R14 are respectively connected with two ends of the thirteenth resistor R13, one end of the seventh capacitor is connected with a signal line connecting end S2 of the second wiring terminal A2, and the other end of the seventh capacitor C7 is connected with a zero line connecting end N of the second wiring terminal A2;
one end of an eighth capacitor C8 is connected with the anode of the seventh diode D7, the other end of the eighth capacitor C8 is connected with the zero line connecting end N of the second connecting terminal A2, one end of a ninth capacitor C9 is connected with the cathode of the seventh diode D7, and the other end of the ninth capacitor C9 is connected with the zero line connecting end N of the second connecting terminal A2;
the cathode of the eighth diode D8 is connected with the cathode of the seventh diode D7, and the anode of the eighth diode D8 is connected with the neutral line connection end N of the second connection terminal a 2;
one end of a fifteenth resistor R15 is connected with the cathode of the eighth diode D8, and the other end of the fifteenth resistor R15 is connected with the response input end of the fourth optocoupler O4;
one end of a tenth capacitor C10 is connected with the negative electrode of the eighth diode D8, and the other end of the tenth capacitor C10 is connected with the response input end of the fourth optocoupler O4;
the excitation output end of the third optical coupler O3 is connected with the response input end of the fourth optical coupler O4;
the response output end of the fourth optical coupler O4 is connected with the zero line connecting end N of the second connecting terminal A2;
a response input end of the third optical coupler O3 is connected with a voltage output end VCC of the switching power supply 70, and an excitation input end of the fourth optical head O4 is connected with the voltage output end VCC of the switching power supply 70;
a response output end of the third optical coupler O3 is respectively connected with one end of a sixteenth resistor R16, one end of an eleventh capacitor C11 and one end of an eighteenth resistor R18, the other end of the sixteenth resistor R16 and the other end of the eleventh capacitor C11 are both grounded, the other end of the eighteenth resistor R18 is connected with one end of a twelfth capacitor C12, and the other end of the twelfth capacitor C12 is grounded and connected with an indoor unit signal receiving interface d on the processing module 30;
an excitation output end of the fourth optocoupler O4 is connected with an emitter of a second triode (PNP type) Q2, a collector of the second triode Q2 is connected with one end of a seventeenth resistor R17, the other end of the seventeenth resistor R17 is grounded, and a base of the second triode Q2 is connected with an indoor unit signal sending interface c on the processing module 30.
Besides the indoor unit communication circuit module 10 and the outdoor unit communication circuit module 20, the rectifier bridge 60 is connected with the switching power supply 70, in addition, the live wire L of the alternating current power supply E is connected with one end of a first switch K1 through a protective tube B, the other end of the first switch K1 is respectively connected with the other end of a nineteenth resistor R19 and one end of a second switch K2, the other end of the second switch K2 is connected with the live wire connecting end L of a first connecting terminal a1, and the zero line N of the alternating current power supply E is respectively connected with the zero line connecting end N of the first connecting terminal a1 and the zero line connecting end N of a second connecting terminal a 2.
When the outdoor unit of the air conditioner needs to be detected, after the first connection terminal a1 is connected with the outdoor unit, the first switch K1 and the second switch K2 are closed, the processing module 30 operates according to a communication mode with the outdoor unit according to the user trigger, at this time, the first diode D1 is lighted, the processing module 30 communicates with the indoor unit communication circuit module 10 through the outdoor unit signal sending interface a and the outdoor unit signal receiving interface b, and the indoor unit communication circuit module 10 communicates with the outdoor unit through the first connection terminal a 1.
When the indoor unit of the air conditioner needs to be detected, the second connection terminal a2 is connected with the indoor unit, the first switch K1 and the second switch K2 are disconnected, the processing module 30 operates according to a communication mode with the indoor unit according to the triggering of a user, and at the moment, the sixth diode D6 is lightened, the processing module 30 is connected through the indoor unit signal receiving interface D and communicates with the outdoor unit communication circuit module 20 through the indoor unit signal sending interface c, and the outdoor unit communication circuit module 20 communicates with the indoor unit through the second connection terminal a2, specifically, when the second connection terminal a2 is connected with the indoor unit, the live wire connection terminal L, the zero wire connection terminal N and the signal wire connection terminal S2 in the second connection terminal a2 are sequentially connected with the live wire, the zero wire and the signal wire output by the indoor unit.
As shown in fig. 4, an embodiment of the present invention provides an air conditioner fault detection method based on the air conditioner fault detection apparatus provided in any one of the above embodiments, where the method may include the following steps:
step 401: connecting an outdoor unit of an air conditioner to be detected with an indoor unit communication circuit module, controlling the indoor unit communication circuit module to communicate with the outdoor unit by using a processing module, and displaying outdoor unit detection information corresponding to a communication result by using a display module;
step 402: the indoor unit of the air conditioner to be detected is connected with the outdoor unit communication circuit module, the outdoor unit communication circuit module is controlled to be communicated with the indoor unit through the processing module, and indoor unit detection information corresponding to a communication result is displayed through the display module.
It should be noted that, when the air-conditioning fault detection device provided in each of the above embodiments detects an air-conditioning fault, the outdoor unit may be detected first and then the indoor unit is detected, that is, step 401 is executed first and then step 402 is executed, or the indoor unit may be detected first and then the outdoor unit is detected, that is, step 402 is executed first and then step 401 is executed. Therefore, in the air conditioner fault detection method embodiment, the execution sequence of step 401 and step 402 may be exchanged.
Optionally, step 401 in fig. 4 may be specifically implemented by the following manner:
a1: the method comprises the steps that a processing module is utilized to control an indoor unit communication circuit module to send a first detection signal to an outdoor unit;
a2: judging whether the indoor unit communication circuit module receives a first feedback signal sent by the outdoor unit aiming at the first detection signal by using the processing module, if so, executing A4, otherwise, executing A3;
a3: sending second outdoor unit detection information prompting the outdoor unit to be abnormal in communication to the display module by using the processing module, displaying the second outdoor unit detection information by using the display module, and finishing the current process;
a4: sending first outdoor unit detection information prompting normal outdoor unit communication to a display module by using a processing module, and displaying the first outdoor unit detection information by using the display module;
a5: according to external triggering, a processing module is utilized to send a starting instruction to an outdoor unit through an indoor unit communication circuit module;
a6: judging whether the outdoor unit is normally started to operate by using the processing module, if so, executing A7, otherwise, executing A8;
a7: sending third outdoor unit detection information prompting normal operation of the outdoor unit to a display module by using the processing module, displaying the third outdoor unit detection information by using the display module, and finishing the current process;
a8: and sending fourth outdoor unit detection information prompting abnormal operation of the outdoor unit to the display module by using the processing module, and displaying the fourth outdoor unit detection information by using the display module.
Optionally, step 402 in fig. 4 may be specifically implemented by the following manner:
b1: the processing module is used for controlling the outdoor unit communication circuit module to send a second detection signal to the indoor unit;
b2: judging whether the outdoor unit communication circuit module receives a second feedback signal sent by the indoor unit aiming at the second detection signal, if so, executing B4, otherwise, executing B3;
b3: sending second indoor unit detection information prompting abnormal communication of the indoor units to the display module by using the processing module, displaying the second indoor unit detection information by using the display module, and finishing the current process;
b4: sending first indoor unit detection information prompting normal indoor unit communication to a display module by using a processing module, and displaying the first indoor unit detection information by using the display module;
b5: according to external triggering, a processing module is utilized to send a starting instruction to an indoor unit through an outdoor unit communication circuit module;
b6: judging whether the indoor unit is normally started to operate by using the processing module, if so, executing A7, otherwise, executing A8;
a7: sending third indoor unit detection information prompting normal operation of the indoor units to a display module by utilizing a processing module, displaying the third indoor unit detection information by utilizing the display module, and finishing the current process;
a8: and sending fourth indoor unit detection information prompting abnormal operation of the indoor unit to the display module by using the processing module, and displaying the fourth indoor unit detection information by using the display module.
Optionally, when the display module is used to display the outdoor unit detection information corresponding to the communication result, the display module may be used to display a first fault code carried by the outdoor unit detection information, and accordingly, after the first fault code is displayed, the processing module may be used to send first fault detail information corresponding to the first fault code to the display module according to external triggering, and the display module is used to display the first fault detail information. The first fault detail information includes fault description information, suggested solution information, and details of the outdoor unit.
Optionally, when the display module is used to display the indoor unit detection information corresponding to the communication result, the display module may be used to display a second fault code carried by the indoor unit detection information, and accordingly, after the second fault code is displayed, the processing module may be used to send second fault detail information corresponding to the second fault code to the display module according to external triggering, and the display module is used to display the second fault detail information. The second fault detail information comprises fault description information, suggested solution information, detailed information of the indoor unit and the like.
It should be noted that, since each step included in the embodiment of the air conditioner fault detection method is based on the same concept as that of the embodiment of the air conditioner fault detection device, specific contents may refer to the description in the embodiment of the air conditioner fault detection device, and are not described herein again.
The following describes methods for detecting an indoor unit and an outdoor unit by using the air conditioner fault detection device, respectively, with reference to the air conditioner fault detection device provided in each of the above embodiments.
As for the method for detecting the outdoor unit by the air conditioner detection device, as shown in fig. 5, the method may include the following steps:
step 501: and connecting the indoor unit communication circuit module with an outdoor unit of the air conditioner to be detected.
In the embodiment of the invention, when the outdoor unit of the air conditioner is detected, the indoor unit communication circuit module is connected with the outdoor unit of the air conditioner. Specifically, as shown in fig. 3, the first connection terminal a1 included in the indoor unit communication circuit module 10 is connected to the outdoor unit to be tested.
Step 502: and connecting the air conditioner fault detection device with an external power supply.
In the embodiment of the invention, a power plug of the air conditioner fault detection device is connected to a socket of commercial power, so that the commercial power supplies power for the communication circuit module, the processing module, the display module and the outdoor unit to be detected of the indoor unit. Specifically, as shown in fig. 3, an alternating current power source E is connected to alternating current of 220V.
Step 503: and adjusting the working mode of the air conditioner fault detection device to a communication mode with the outdoor unit.
In the embodiment of the invention, a user can adjust the air conditioner fault detection device to a communication mode with the outdoor unit through a button on the air conditioner fault detection device, so that the processing module can control the indoor unit communication circuit module to communicate with the outdoor unit. Specifically, as shown in fig. 3, after the air conditioner fault detection device is adjusted to the outdoor unit communication mode by closing the first switch K1 and the second switch K2, the first diode D1 is turned on to indicate that the air conditioner fault detection device enters the operation mode of communicating with the outdoor unit.
Step 504: and sending a first detection signal to the outdoor unit through the indoor unit communication circuit module.
In the embodiment of the invention, after the processing module receives the trigger of the user, the processing module controls the indoor unit communication circuit module to send the first detection signal to the outdoor unit to be detected.
Step 505: and judging whether the indoor unit communication circuit module receives a first feedback signal returned by the outdoor unit, if so, executing a step 506, and if not, executing a step 509.
In the embodiment of the present invention, after the processing module sends the first detection signal to the outdoor unit through the indoor unit communication circuit module, if the communication function of the outdoor unit is normal, the outdoor unit may generate a corresponding first feedback signal according to the first detection signal and send the first feedback signal to the indoor unit communication circuit module, and after the processing module sends the first detection signal, the processing module determines in real time whether the indoor unit communication circuit module receives the first feedback signal, if so, it indicates that the communication function of the outdoor unit is normal, and accordingly performs step 506, otherwise, it indicates that the communication function of the outdoor unit is abnormal, and accordingly performs step 509.
Step 506: and sending a starting instruction to the outdoor unit through the indoor unit communication circuit module.
In the embodiment of the invention, after acquiring a first feedback signal sent by an outdoor unit, a processing module acquires an outdoor temperature value from the first feedback signal, if the outdoor temperature value is greater than a preset temperature threshold value, the processing module sends a cooling mode starting instruction to the outdoor unit through an indoor unit communication circuit module to enable the outdoor unit to operate in a cooling mode, and if the outdoor temperature value is less than or equal to the preset temperature threshold value, the processing module sends a heating mode starting instruction to the outdoor unit through the indoor unit communication circuit module to enable the outdoor unit to operate in a heating mode.
Step 507: and judging whether the outdoor unit is normally started to operate, if so, executing a step 508, and if not, executing a step 509.
In the embodiment of the present invention, after the processing module sends the start instruction to the outdoor unit through the indoor unit communication circuit module, the processing module detects whether the outdoor unit normally operates according to the sent start instruction, if so, it indicates that the working operation function of the outdoor unit is normal, and correspondingly performs step 508, otherwise, it indicates that the working operation function of the outdoor unit is abnormal, and correspondingly performs step 509.
Step 508: and determining that the outdoor unit is not abnormal, and ending the current flow.
In the embodiment of the present invention, after determining that the outdoor unit to be detected is not abnormal, the processing module may send detection information prompting that the outdoor unit is not abnormal to the display module, and the display module may display the received detection information to prompt a user that the outdoor unit to be detected is not abnormal.
Step 509: and displaying the corresponding fault information of the outdoor unit through the display module.
In the embodiment of the present invention, after determining that the indoor unit communication circuit module does not receive the first feedback signal, the processing module sends the display module failure information prompting the communication function of the outdoor unit to be abnormal, and the display module displays the received failure information to prompt the user that the communication function of the outdoor unit is abnormal. After the processing module determines that the outdoor unit cannot be started and operated normally, fault information prompting the abnormal working and operating functions of the outdoor unit is sent to the display module, and the display module displays the received fault information to prompt a user that the working and operating functions of the outdoor unit are abnormal. Specifically, the processing module sends different fault information to the display module according to different types of abnormal conditions of the outdoor unit, and the display module can display corresponding fault codes.
Step 510: and the display module displays the fault detailed information of the outdoor unit according to the triggering of the user.
In the embodiment of the present invention, after the display module displays the fault information of the outdoor unit, the processing module may send the fault detailed information, such as suggested solution corresponding to the fault, the outdoor unit detailed information to be detected, and the like, to the display module according to the triggering of the user in the form of a key and the like. In addition, the user can also realize the operations of turning pages up and down, returning and the like on the information displayed by the display module through keys on the air conditioner fault detection device.
As for the method for detecting the indoor unit by the air conditioner detection device, as shown in fig. 6, the method may include the following steps:
step 601: and connecting the outdoor unit communication circuit module with an indoor unit of the air conditioner to be detected.
In the embodiment of the invention, when the indoor unit of the air conditioner is detected, the outdoor unit communication circuit module is connected with the indoor unit of the air conditioner. Specifically, as shown in fig. 3, the second connection terminal a2 included in the outdoor unit communication circuit module 20 is connected to the indoor unit to be detected.
Step 602: and connecting the air conditioner fault detection device with an external power supply, and connecting the indoor unit with the external power supply.
In the embodiment of the invention, the power plug of the air conditioner fault detection device is connected to the socket of the commercial power, and in addition, the power plug of the indoor unit to be detected is connected to the socket of the commercial power. Specifically, as shown in fig. 3, an alternating current power source E is connected to alternating current of 220V.
Step 603: and adjusting the working mode of the air conditioner fault detection device to a communication mode with the indoor unit.
In the embodiment of the invention, a user can adjust the air conditioner fault detection device to a communication mode with the indoor unit through a button on the air conditioner fault detection device, so that the processing module can control the outdoor unit communication circuit module to communicate with the indoor unit. Specifically, as shown in fig. 3, after the first switch K1 and the second switch K2 are turned off to adjust the air conditioner fault detection device to the indoor unit communication mode, the sixth diode D6 is turned on to instruct the air conditioner fault detection device to enter the operation mode of communicating with the indoor unit.
Step 604: and sending a second detection signal to the indoor unit through the outdoor unit communication circuit module.
In the embodiment of the invention, after the processing module receives the trigger of the user, the processing module controls the outdoor unit communication circuit module to send the second detection signal to the indoor unit to be detected.
Step 605: and judging whether the outdoor unit communication circuit module receives a second feedback signal returned by the indoor unit, if so, executing the step 606, and otherwise, executing the step 609.
In the embodiment of the present invention, after the processing module sends the second detection information to the indoor unit through the outdoor unit circuit module, if the communication function of the indoor unit is normal, the indoor unit may generate a corresponding second feedback signal according to the second detection signal, and send the generated second feedback signal to the outdoor unit communication circuit module. After the second detection signal is sent, the processing module judges whether the outdoor unit communication circuit module receives the second feedback signal in real time, if so, the communication function of the indoor unit is normal, and correspondingly executes step 606, otherwise, the communication function of the indoor unit is abnormal, and correspondingly executes step 609.
Step 606: and sending a starting instruction to the indoor unit through the outdoor unit communication circuit module.
In the embodiment of the present invention, after the outdoor unit communication circuit module receives the second feedback signal, the processing module sends a start instruction to the indoor unit to be detected through the outdoor unit communication circuit module, so that the indoor unit is started to operate.
Step 607: and (4) judging whether the indoor unit is normally started to operate, if so, executing a step 608, and otherwise, executing a step 509.
In the embodiment of the present invention, after the processing module sends the start instruction to the indoor unit through the outdoor unit communication circuit module, the processing module detects whether components such as a fan, an air deflector, and the like of the indoor unit are normally started to operate, if so, it indicates that the working operation function of the indoor unit is normal, and correspondingly performs step 608, otherwise, it indicates that the working operation capability of the indoor unit is abnormal, and correspondingly performs step 609.
Step 608: and determining that the indoor unit is abnormal, and finishing the current flow.
In the embodiment of the invention, after determining that the indoor unit to be detected is not abnormal, the processing module can send detection information prompting that the indoor unit is abnormal to the display module, and the display module can display the received detection information to prompt a user that the indoor unit to be detected is abnormal.
Step 609: and displaying the corresponding fault information of the indoor unit through the display module.
In the embodiment of the present invention, after determining that the outdoor unit communication circuit module does not receive the second feedback signal, the processing module sends the display module failure information prompting that the indoor unit communication function is abnormal, and the display module displays the received failure information to prompt that the indoor unit communication function of the user is abnormal. After the processing module determines that the indoor unit cannot be started and operated normally, the processing module sends fault information prompting that the indoor unit is abnormal in working and operating functions to the display module, and the display module displays the received fault information to prompt a user that the indoor unit is abnormal in working and operating functions. Specifically, the processing module may send different fault information to the display module according to different types of abnormal conditions of the indoor unit, and the display module may display a fault code corresponding to the fault information.
Step 610: and the display module displays the detailed fault information of the indoor unit according to the triggering of the user.
In the embodiment of the present invention, after the real module displays the failure information of the indoor unit, the processing module may send corresponding failure detailed information, such as suggested solution measures corresponding to the corresponding failure, detailed information of the indoor unit to be detected, and the like, to the display module according to the trigger of the user. In addition, the user can also realize the operations of turning pages up and down, returning and the like on the information displayed by the display module through keys on the air conditioner fault detection device.
In summary, the air conditioner fault detection device and the detection method provided by the embodiments of the present invention at least have the following beneficial effects:
1. in the embodiment of the invention, the indoor unit communication circuit module comprises a communication circuit corresponding to an air conditioner indoor unit electric control board, and the outdoor unit communication circuit module comprises a communication circuit corresponding to an air conditioner outdoor unit electric control board. After the indoor unit communication circuit module is connected with an outdoor unit of the air conditioner to be detected, the processing module can communicate with the outdoor unit through the indoor unit communication circuit module and can send outdoor unit detection information to the display module according to a communication result, and therefore a user can determine whether the outdoor unit is abnormal or not according to the outdoor unit detection information displayed by the display module. After the outdoor unit communication circuit module is connected with the indoor unit of the air conditioner to be detected, the processing module can communicate with the indoor unit through the outdoor unit communication circuit module and can send indoor unit detection information to the display module according to a communication result, and therefore a user can determine whether the indoor unit is abnormal or not according to the indoor unit detection information displayed by the display module. Therefore, the communication circuit module of the indoor unit is connected with the outdoor unit of the air conditioner, so that the communication between the indoor unit and the outdoor unit of the air conditioner can be simulated to detect whether the outdoor unit of the air conditioner is abnormal or not, the communication circuit module of the outdoor unit is connected with the indoor unit of the air conditioner, so that the communication between the outdoor unit and the indoor unit of the air conditioner can be simulated to detect whether the indoor unit of the air conditioner is abnormal or not, and the abnormity of the indoor unit or the abnormity of the outdoor unit is determined without disassembling and assembling an electric control board, so that the efficiency of detecting the fault.
2. In the embodiment of the invention, the processing module sequentially sends the first detection signal and the starting instruction to the outdoor unit of the air conditioner through the indoor unit communication circuit module, so that the communication function and the working operation function of the outdoor unit can be respectively detected to be normal, and the comprehensiveness of the detection of the outdoor unit is ensured.
3. In the embodiment of the invention, the outdoor unit detects the outdoor temperature and sends the detected outdoor temperature value to the indoor unit communication circuit module, the processing module acquires the outdoor temperature value from the indoor unit communication circuit module and sends the corresponding type of starting instruction to the outdoor unit according to the outdoor temperature value, and a temperature sensor does not need to be arranged in the air conditioner fault detection device provided by the embodiment of the invention, so that the air conditioner fault detection device provided by the embodiment of the invention has a more simplified structure and lower cost.
4. In the embodiment of the invention, the power supply module only works when the outdoor unit is detected, the power required by the outdoor unit working of the indoor unit communication circuit module, the processing module and the display module is provided, and the indoor unit provides the power required by the outdoor unit communication circuit module, the processing module and the display module working when the indoor unit is detected, so that the power supply in the air conditioner fault detection process is more reasonable, the power supply module supplies power in one direction, the power supply module can ensure that the power supply module has a simpler circuit structure, the requirement on components in the power supply module is lower, and the cost of the air conditioner fault detection device provided by the embodiment of the invention is favorably reduced.
5. In the embodiment of the invention, when the fault of the indoor unit or the outdoor unit of the air conditioner is detected, the display module displays the corresponding fault code, and the user can trigger the display module to display the fault description information, the suggested solution information and the detailed information of the detected object corresponding to the fault code, so that the user can more visually determine the fault of the indoor unit or the outdoor unit, and can adopt the corresponding measures to maintain the indoor unit or the outdoor unit according to the suggested solution information displayed by the display module, thereby improving the use experience of the user.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. An air conditioner fault detection device, comprising: the indoor unit communication circuit module, the outdoor unit communication circuit module, the processing module and the display module;
the indoor unit communication circuit module comprises a communication circuit corresponding to the air-conditioning indoor unit electric control board;
the outdoor unit communication circuit module comprises a communication circuit corresponding to the electric control panel of the outdoor unit of the air conditioner;
the indoor unit communication circuit module is used for being connected with an outdoor unit of an air conditioner to be detected and communicating with the outdoor unit under the control of the processing module;
the outdoor unit communication circuit module is used for being connected with the indoor unit of the air conditioner to be detected and communicating with the indoor unit under the control of the processing module;
the processing module is used for controlling the indoor unit communication circuit module to communicate with the outdoor unit, sending outdoor unit detection information to the display module according to a communication result, controlling the outdoor unit communication circuit module to communicate with the indoor unit, and sending indoor unit detection information to the display module according to a communication result;
the display module is used for displaying the outdoor unit detection information and the indoor unit detection information
The indoor unit communication circuit module comprises a first wiring terminal, 11 resistors, 6 capacitors, 5 diodes, 2 optocouplers and 1 triode, and the connection mode of each element in the indoor unit communication circuit module is as follows: the live wire connecting end of the first connecting terminal is connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor, the other end of the second resistor is connected with one end of a third resistor, the other end of the third resistor is connected with the anode of a second diode, and the cathode of the second diode is connected with the response input end of a first optocoupler; the positive electrode of the first diode is connected with the live wire connecting end of the first connecting terminal, the negative electrode of the first diode is connected with one end of the fourth resistor, and the other end of the fourth resistor is connected with the zero line connecting end of the first connecting terminal; the anode of the third diode is connected with the zero line connecting end of the first connecting terminal, and the cathode of the third diode is connected with the cathode of the second diode; the first capacitor, the fifth resistor and the second capacitor are connected in parallel, and two ends of the first capacitor, the fifth resistor and the second capacitor are respectively connected with the anode and the cathode of the third diode; the signal line connecting end of the first connecting terminal is connected with one end of a sixth resistor, the other end of the sixth resistor is connected with one end of a seventh resistor, the other end of the seventh resistor is connected with the cathode of a fifth diode, the anode of the fifth diode is connected with one end of an eighth resistor, and the other end of the eighth resistor is respectively connected with the response output end of the first optocoupler and the excitation input end of the second optocoupler; one end of a third capacitor is connected with the cathode of the fifth diode, and the other end of the third capacitor is connected with the zero line connecting end of the first connecting terminal; the anode of the fourth diode is connected with the zero line connecting end of the first connecting terminal, and the cathode of the fourth diode is connected with the cathode of the fifth diode; an excitation input end of the first optocoupler is connected with a voltage output end of the switching power supply, one end of a fourth capacitor is connected with the excitation input end of the first optocoupler, and the other end of the fourth capacitor is grounded; the excitation output end of the first optocoupler is connected with one end of a ninth resistor, the other end of the ninth resistor is connected with a collector of a first triode, an emitter of the first triode is grounded, and a base of the first triode is connected with an outdoor unit signal sending interface on the processing module; an excitation output end of the second optocoupler is connected with the anode of the fifth diode, a response input end of the second optocoupler is respectively connected with one end of a tenth resistor and one end of an eleventh resistor, the other end of the tenth resistor is connected with a voltage output end of the switching power supply, and the other end of the eleventh resistor is connected with an outdoor unit signal receiving interface on the processing module; the response output end of the second optocoupler is grounded and is respectively connected with one end of a fifth capacitor and one end of a sixth capacitor, the other end of the fifth capacitor is connected with the response input end of the second optocoupler, and the other end of the sixth capacitor is connected with the other end of the eleventh resistor;
outside the indoor unit communication circuit module and the outdoor unit communication circuit module, the rectifier bridge is connected with a switching power supply, a live wire of an alternating current power supply is connected with one end of a first switch through a protective tube, the other end of the first switch is connected with one end of a second switch, the other end of the second switch is connected with a live wire connecting end of a first connecting terminal, and a zero line of the alternating current power supply is connected with a zero line connecting end of the first connecting terminal;
when the outdoor unit of the air conditioner needs to be detected, the first switch and the second switch are closed after the first wiring terminal is connected with the outdoor unit.
2. The apparatus of claim 1,
the processing module is used for controlling the indoor unit communication circuit module to send a first detection signal to the outdoor unit and judging whether the indoor unit communication circuit module receives a first feedback signal sent by the outdoor unit aiming at the first detection signal, if so, sending first outdoor unit detection information prompting normal communication of the outdoor unit to the display module, and otherwise, sending second outdoor unit detection information prompting abnormal communication of the outdoor unit to the display module;
the processing module is further configured to send a start instruction to the outdoor unit through the indoor unit communication circuit module according to external triggering after the indoor unit communication circuit module is determined to receive the first feedback signal, and determine whether the outdoor unit is normally started and operated, if so, send third outdoor unit detection information prompting that the outdoor unit is normally operated to the display module, and otherwise, send fourth outdoor unit detection information prompting that the outdoor unit is abnormally operated to the display module;
and the display module is used for displaying the received first outdoor unit detection information, second outdoor unit detection information, third outdoor unit detection information and fourth outdoor unit detection information.
3. The apparatus of claim 2,
the processing module is configured to obtain an outdoor temperature value sent by the outdoor unit to the indoor unit communication circuit module, and send a cooling mode starting instruction to the outdoor unit through the indoor unit communication circuit module if the outdoor temperature value is greater than a preset temperature threshold value, or send a heating mode starting instruction to the outdoor unit through the indoor unit communication circuit module, where the cooling mode starting instruction is used to control the outdoor unit to operate in a cooling mode, and the heating mode starting instruction is used to control the outdoor unit to operate in a heating mode.
4. The apparatus of claim 1,
the processing module is used for controlling the outdoor unit communication circuit module to send a second detection signal to the indoor unit and judging whether the outdoor unit communication circuit module receives a second feedback signal sent by the indoor unit aiming at the second detection signal, if so, sending first indoor unit detection information prompting normal communication of the indoor unit to the display module, and otherwise, sending second indoor unit detection information prompting abnormal communication of the indoor unit to the display module;
the processing module is further configured to send a start instruction to the indoor unit through the outdoor unit communication circuit module according to external triggering after the outdoor unit communication circuit module is determined to receive the second feedback signal, and determine whether the indoor unit is normally started and operated, if so, send third indoor unit detection information prompting that the indoor unit is normally operated to the display module, and otherwise, send fourth indoor unit detection information prompting that the indoor unit is abnormally operated to the display module;
the display module is used for displaying the received first indoor unit detection information, second indoor unit detection information, third indoor unit detection information and fourth indoor unit detection information.
5. The apparatus of claim 1, further comprising: a power supply module;
the power supply module is respectively connected with the indoor unit communication circuit module and the processing module;
and the power supply module is used for supplying power to the indoor unit communication circuit module, the processing module and the outdoor unit after the indoor unit communication circuit module is connected with the outdoor unit.
6. The device according to any one of claims 1 to 5,
the processing module is further configured to send fault detail information corresponding to the fault code to the display module according to external triggering after the display module displays the fault code carried by the outdoor unit detection information or the indoor unit detection information, where the fault detail information includes any one or more of fault description information, recommended solution information, and detailed information of the object to be tested;
the display module is further configured to display the received fault detail information.
7. An air conditioner fault detection method based on the air conditioner fault detection device according to any one of claims 1 to 6, characterized by comprising:
connecting an outdoor unit of an air conditioner to be detected with the indoor unit communication circuit module, controlling the indoor unit communication circuit module to communicate with the outdoor unit by using the processing module, and displaying outdoor unit detection information corresponding to a communication result by using the display module;
connecting an indoor unit of the air conditioner to be detected with the outdoor unit communication circuit module, controlling the outdoor unit communication circuit module to communicate with the indoor unit by using the processing module, and displaying indoor unit detection information corresponding to a communication result by using the display module;
the outdoor unit of the air conditioner to be detected is connected with the indoor unit communication circuit module, and the method comprises the following steps: and after the first wiring terminal is connected with the outdoor unit, the first switch and the second switch are closed.
8. The method of claim 7,
the utilizing the processing module to control the indoor unit communication circuit module to communicate with the outdoor unit, and utilizing the display module to display the outdoor unit detection information corresponding to the communication result, includes:
a1: the processing module is used for controlling the indoor unit communication circuit module to send a first detection signal to the outdoor unit;
a2: judging whether the indoor unit communication circuit module receives a first feedback signal sent by the outdoor unit aiming at the first detection signal or not by using the processing module, if so, executing A4, otherwise, executing A3;
a3: sending second outdoor unit detection information prompting the abnormal communication of the outdoor unit to the display module by using the processing module, displaying the second outdoor unit detection information by using the display module, and ending the current process;
a4: sending first outdoor unit detection information prompting normal communication of the outdoor unit to the display module by using the processing module, and displaying the first outdoor unit detection information by using the display module;
a5: according to external triggering, the processing module is utilized to send a starting instruction to the outdoor unit through the indoor unit communication circuit module;
a6: judging whether the outdoor unit is normally started to operate by using the processing module, if so, executing A7, otherwise, executing A8;
a7: sending third outdoor unit detection information prompting normal operation of the outdoor unit to the display module by using the processing module, displaying the third outdoor unit detection information by using the display module, and finishing the current process;
a8: and sending fourth outdoor unit detection information prompting the abnormal operation of the outdoor unit to the display module by utilizing the processing module, and displaying the fourth outdoor unit detection information by utilizing the display module.
9. The method of claim 7,
the utilizing the processing module to control the outdoor unit communication circuit module to communicate with the indoor unit, and utilizing the display module to display the indoor unit detection information corresponding to the communication result, includes:
b1: the processing module is used for controlling the outdoor unit communication circuit module to send a second detection signal to the indoor unit;
b2: judging whether the outdoor unit communication circuit module receives a second feedback signal sent by the indoor unit aiming at the second detection signal, if so, executing B4, otherwise, executing B3;
b3: sending second indoor unit detection information prompting the indoor unit to be abnormal in communication to the display module by using the processing module, displaying the second indoor unit detection information by using the display module, and finishing the current process;
b4: sending first indoor unit detection information prompting normal communication of the indoor unit to the display module by using the processing module, and displaying the first indoor unit detection information by using the display module;
b5: according to external triggering, the processing module is utilized to send a starting instruction to the indoor unit through the outdoor unit communication circuit module;
b6: judging whether the indoor unit is normally started to operate by using the processing module, if so, executing A7, otherwise, executing A8;
a7: sending third indoor unit detection information prompting normal operation of the indoor unit to the display module by using the processing module, displaying the third indoor unit detection information by using the display module, and finishing the current process;
a8: and sending fourth indoor unit detection information prompting abnormal operation of the indoor unit to the display module by using the processing module, and displaying the fourth indoor unit detection information by using the display module.
10. The method according to any one of claims 7 to 9,
the displaying of the outdoor unit detection information corresponding to the communication result by using the display module includes:
displaying a first fault code carried by the outdoor unit detection information by using the display module;
correspondingly, after the displaying the outdoor unit detection information corresponding to the communication result by using the display module, the method further comprises:
sending first fault detail information corresponding to the first fault code to the display module according to external triggering by using the processing module, wherein the first fault detail information comprises any one or more of fault description information, suggested solution information and detailed information of the outdoor unit;
displaying the first fault detail information by using the display module;
and/or the presence of a gas in the gas,
the displaying of the indoor unit detection information corresponding to the communication result by using the display module includes:
displaying a second fault code carried by the indoor unit detection information by using the display module;
correspondingly, after the displaying the indoor unit detection information corresponding to the communication result by using the display module, the method further comprises the following steps:
sending second fault detail information corresponding to the second fault code to the display module by using the processing module according to external triggering, wherein the second fault detail information comprises any one or more of fault description information, suggested solution information and detailed information of the indoor unit;
and displaying the second fault detail information by using the display module.
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