JP2010101519A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of allowing a worker to easily judge necessity of repair with respect to generated abnormality. <P>SOLUTION: In this air conditioner, when the display of an execution history of a protective function corresponding to failure is requested, the execution history is displayed. When the display of the execution history of the protective function corresponding to a problem is requested, the execution history is displayed. Further when the display of the execution history of the protective functions corresponding to both of the failure and problem is requested, the execution history is displayed. That is, in this air conditioner, the execution history of the protective function corresponding to "failure" needing repair, and the execution history of the protective function corresponding to "problem" not needing repair are distinctly displayed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly, to an air conditioner that displays information about an abnormal state that has occurred.

  Conventionally, a separate type air conditioner (an air conditioner configured by separating an indoor unit and an outdoor unit) has its contents stored in a storage means when a failure occurs, and by a predetermined operation, Some display units of remote controllers and indoor unit bodies are configured to display past failure details. With this configuration, an operator can easily determine the content and cause of the failure and accurately repair the failure by referring to the display of the content of the failure when checking the air conditioner.

  For such an air conditioner, for example, Patent Document 1 (Japanese Patent Laid-Open No. 9-1113013) discloses a technique for displaying all failures that have occurred after the previous inspection / maintenance during the inspection / maintenance of the air conditioner. Is disclosed.

Further, in Patent Document 2 (Japanese Patent Laid-Open No. 63-183334), an abnormality is repeatedly generated in order to avoid the occurrence of a malfunction due to a failure caused by a sudden cause and being determined to be due to a failure. A technique is disclosed in which a failure is determined on the condition that it has occurred (for example, when it occurs four times) and the content is displayed on a display unit.
JP-A-9-1113013 JP 63-183334 A

  FIG. 7 is a diagram schematically illustrating a manner in which past failure contents are stored in the storage unit in a conventional air conditioner. As understood from FIG. 7, in the conventional air conditioner, “abnormal B” “abnormal a” “abnormal d” “abnormal A” “abnormal e” “abnormal D” “abnormal c” “abnormal b” “abnormal” In the order of “C”, information specifying the content of the abnormality corresponding to the failure that has occurred is stored. Each information is numbered from 1 in the order in which the times of occurrence are close to the present. That is, among the nine anomalies listed in FIG. 7, the one corresponding to “abnormal C” occurs first, and the one corresponding to “abnormal B” occurs most recently.

  And in the conventional air conditioner, when the information regarding the abnormality as shown in FIG. 7 is stored, by performing a predetermined operation, the information becomes 1 in the order stored in FIG. It was displayed one by one or in a list.

  Among the conditions that are abnormal in the air conditioner, there are failures that require stopping the operation of the air conditioner and waiting for repairs such as replacement of parts. A defect that requires a single protection function realized by control temporarily executed to protect various parts is also included. Failures require repairs such as replacement of parts, and it is necessary to stop the operation of the air conditioner until the repairs are completed. Is often unnecessary.

  In the conventional air conditioner, the contents of the abnormality as shown in FIG. 7 are displayed when the operator performs a predetermined operation in order to know the contents of the failure at the time of inspection. Then, as the contents of the abnormality, as shown in FIG. 7, the failure and defect are displayed in a mixed state. It is possible to know retroactively whether or not a failure has occurred, and can be used as a judgment material for repair or the like. However, as shown in FIG. 7, when displayed in a mode in which a failure and a defect are mixed, the worker misunderstands that a part related to a defect that does not need to be repaired is necessary and is useless. There was a situation where repairs were made.

  In particular, when the content of an abnormality that occurred using a 7-segment LED (Light Emitting Diode) provided in the indoor unit is displayed for temperature display, the content of the abnormality is a malfunction even if it is a failure. However, it was displayed with characters and symbols according to the contents.

  For example, when the content of a certain failure corresponds to a code “10-1” and the content of a certain failure corresponds to a code “13-1”, The display of these codes using 7-segment LEDs (hereinafter abbreviated as “7-segment”) 70 and 71 shown in FIG. In this case, as shown in FIG. 9A, the code corresponding to the content of the failure is displayed as “10” based on “1” by 7-segment 70 and “0” by 7-segment 71 and FIG. As shown in (B), “−” by 7-segment 70 and “−1” based on “1” by 7-segment 71 are alternately displayed. Moreover, the display of the code corresponding to the content of the defect is the display of “13” based on “1” by 7-segment 70 and “3” by 7-segment 71 as shown in FIG. As shown in B), “−” by 7-segment 70 and “−1” based on “1” by 7-segment 71 are alternately displayed. That is, the content of the abnormality that has occurred and the content of the defect are displayed in a manner that makes it difficult to distinguish them from each other. For this reason, the situation where a worker misunderstood a failure as a failure or a mistake as a failure has occurred.

  The present invention has been conceived in view of such a situation, and an object of the present invention is to provide an air conditioner that allows an operator to easily determine whether or not repair is required for an abnormality that has occurred.

  The air conditioner according to the present invention includes a storage unit, a display unit, and a first protection function that is determined to be a failure when executed, or a second that is not determined to be a failure even when executed. An execution unit that executes a protection function, and that the first protection function or the second protection function is executed is stored in the storage unit, and the first protection stored in the storage unit A control means for extracting the function execution history and the execution history of the second protection function independently of each other, and the control means stores the execution history of the first protection function stored in the storage means. A first display mode for displaying on the display means; and a second display mode for displaying the execution history of the second protection function stored in the storage means on the display means.

  Further, in the air conditioner of the present invention, the control means causes the display means to display the first protection function execution history stored in the storage means and the second protection function together. It is preferable to further have the display mode.

  Further, in the air conditioner of the present invention, the control means in the third display mode displays the execution history of the first protection function and the execution history of the second protection function in a manner different from each other. Is preferably displayed.

  In the air conditioner of the present invention, it is preferable that the control unit stores the execution history of the first protection function and the execution history of the second protection function in the storage unit in different modes.

  According to the present invention, in an air conditioner capable of executing a first protection function that is determined to be a failure when executed and a second protection function that is not determined to be a failure even when executed, The execution history of the first protection function is displayed in the first display mode, and the execution history of the second protection function is displayed in the second display mode. That is, according to the present invention, the execution history of the first protection function and the execution history of the second protection function are displayed separately.

  Thereby, when an operator who inspects the air conditioner looks at the display of the execution history of the protection function, it is not determined that the execution history is an execution history of the protection function that should be determined as a failure. You can recognize whether it is the execution history of the protection function.

  Therefore, according to the present invention, the execution history of the protection function is displayed, so that the worker can easily recognize whether or not the repair for the abnormality occurring in the air conditioner is necessary.

  Hereinafter, embodiments of an air conditioner according to the present invention will be described with reference to the drawings. In each figure, elements having the same function and configuration are denoted by the same reference numerals, and detailed description thereof will not be repeated.

[Configuration of air conditioner]
FIG. 1 is a functional block diagram of an air conditioner (hereinafter abbreviated as “air conditioner”) which is an embodiment of an air conditioner of the present invention.

Referring to FIG. 1, air conditioner 1 includes an indoor unit 100 and an outdoor unit 200.
The indoor unit 100 includes an indoor unit control unit 101 that controls the operation of the indoor unit 100 as a whole. The indoor unit control unit 101 includes a CPU (Central Processing Unit). In addition, the indoor unit 100 includes a power supply control unit 102 that controls supply of power to each component of the indoor unit 100.

  The indoor unit 100 includes a fan motor 104 that rotates a fan that supplies air into the room (a space that is subject to temperature adjustment by the air conditioner 1), and a fan drive unit 103 that drives the fan motor 104. The operation of the fan drive unit 103 is controlled by the indoor unit control unit 101.

  The indoor unit 100 has a flip (not shown) that adjusts the direction of the wind supplied by the fan. The indoor unit 100 includes a flip motor 106 for changing the direction of the flip, and a flip drive unit 105 for controlling the operation of the flip motor 106. The operation of the flip drive unit 105 is controlled by the indoor unit control unit 101.

  The indoor unit 100 includes a heater 152 for supplying heat into the room and a heater driving unit 151 that drives the heater 152. The operation of the heater driving unit 151 is controlled by the indoor unit control unit 101.

  The indoor unit 100 includes an LED for displaying various types of information, and an LED control unit 108 that controls the light emission mode of the LED 109. The operation of the LED control unit 108 is controlled by the indoor unit control unit 101.

  The indoor unit 100 includes a communication control unit 107 that serves as an interface for communication with the outdoor unit 200. The operation of the communication control unit 107 is controlled by the indoor unit control unit 101.

  Indoor unit 100 includes a buzzer 140 for outputting a buzzer sound. The operation of the buzzer 140 is controlled by the indoor unit control unit 101.

  The indoor unit 100 also communicates with a remote controller (hereinafter abbreviated as “remote controller”) 130 configured by a casing separated from the main body of the indoor unit 100. When the remote controller 130 is operated, data corresponding to the operation is transmitted from the remote controller 130 to the indoor unit control unit 101. Further, the data transmitted from the indoor unit control unit 101 is received by the remote controller 130. Indoor unit control unit 101 includes an interface for performing wireless communication with remote controller 130.

  Indoor unit 100 includes a temperature sensor / humidity sensor (hereinafter abbreviated as “sensor”) 120 for detecting indoor temperature and humidity. The temperature and humidity detected by the sensor 120 are sent to the indoor unit control unit 101. The indoor unit control unit 101 determines the operation mode of the fan motor 104, the flip motor 106, and the heater 152 based on the data transmitted from the remote controller 130 and the detection result transmitted from the sensor 120, and based on this, the fan unit 104 Control for the drive unit 103, the flip drive unit 105, and the heater drive unit 151 is executed. In addition, the indoor unit control unit 101 includes a storage unit 110. The storage unit 110 includes a first storage area 111 that stores an execution history of a first protection function, which will be described later, a second storage area 112 that stores an execution history of a protection function corresponding to a malfunction, and an indoor unit control unit 101 And a data storage area 113 for storing various programs to be executed and various data.

  The outdoor unit 200 includes an outdoor unit control unit 201 that controls the overall operation of the outdoor unit 200.

  The outdoor unit 200 includes a fan motor 204 that rotates a fan (not shown) and a fan drive unit 203 that drives and controls the fan motor 204. The operation of the fan drive unit 203 is controlled by the outdoor unit control unit 201.

  The outdoor unit 200 includes a compressor 206 that circulates refrigerant between the indoor unit 100 and the outdoor unit 200, and a compressor driving unit 205 that drives and controls the compressor 206. The operation of the compressor driving unit 205 is controlled by the outdoor unit control unit 201.

  The outdoor unit 200 includes a power control unit 202 that controls power supply of each element to the outdoor unit.

  The outdoor unit 200 includes a communication control unit 207 serving as an interface for information communication with the indoor unit 100. The operation of the communication control unit 207 is controlled by the outdoor unit control unit 201.

  The indoor unit control unit 101 determines the operation mode of the fan motor 204 and the compressor 206 based on the detection output of the sensor 120 and the data transmitted from the remote controller 130. Then, the indoor unit control unit 101 transmits information specifying the determined operation mode to the outdoor unit 200 via the communication control unit 107. In the outdoor unit 200, the outdoor unit control unit 201 receives the information transmitted from the indoor unit control unit 101 via the communication control unit 207. And the outdoor unit control part 201 determines the control aspect of the fan drive part 203 and the compressor drive part 205 based on the said received content, and transmits the data for control to these based on the said control content .

  Based on the data transmitted from the fan drive unit 103, the flip drive unit 105, and the heater drive unit 151, the indoor unit control unit 101 detects abnormalities in the circuits that constitute these drive units, motor failures, heater breaks, Detects abnormal conditions such as voltage abnormalities. In addition, the outdoor unit control unit 201 determines whether there is an abnormality such as an abnormality in a circuit constituting the driving unit or a malfunction of the motor or the compressor based on data transmitted from the fan driving unit 203 and the compressor driving unit 205. When an abnormality is detected, information to that effect is transmitted to the indoor unit control unit 101 via the communication control unit 207 and the communication control unit 107.

  The data storage area 113 stores a program for executing control contents to be executed according to the type of abnormal state that has occurred in the indoor unit 100 or the outdoor unit 200. When an abnormal state occurs in the indoor unit 100 or the outdoor unit 200, the indoor unit control unit 101 reads a program for executing control contents corresponding to the abnormal state from the data storage area 113, and executes the program. Thereby, in the indoor unit 100 and the outdoor unit 200, when an abnormal state occurs, processing corresponding to the abnormal state is executed under the control of the indoor unit control unit 101. In this specification, when an abnormal state occurs in this way, the protection function corresponding to the abnormal state is executed by executing the control content corresponding to the generated abnormal state.

[Indoor unit abnormality management processing]
Next, when the air conditioner 1 performs a general operation for adjusting the temperature in the room, the occurrence of an abnormal state in the indoor unit 100 is detected and control corresponding to the generated abnormal state is executed. The contents of the process (indoor unit abnormality management process) executed by the indoor unit control unit 101 will be described with reference to FIG. 2 which is a flowchart of the process.

  Referring to FIG. 2, in the indoor unit side abnormality management process, first, in step SA10, indoor unit control unit 101 performs fan drive unit 103, flip drive unit 105, heater drive unit 151, sensor 120, remote controller 130, and LED control. Various data transmitted from the unit 108 are checked, and the process proceeds to step SA20.

  In step SA20, the indoor unit control unit 101 determines whether any abnormal state has occurred in the indoor unit 100 based on the data checked in step SA10, and if it determines that it has not occurred, the process proceeds to step SA10. If it is determined that it has occurred, the process proceeds to step SA30.

  In the data storage area 113, various abnormal states are defined. In the data storage area 113, the range of data input to the indoor unit control unit 101 and the combination thereof are associated with each abnormal state. In step SA20, the indoor unit control unit 101 determines whether or not the various types of data checked in step SA10 correspond to the various abnormal states stored in the data storage area 113. If it is determined that there is an abnormal condition, the process proceeds to step SA30.

  In step SA30, the indoor unit control unit 101 outputs control signals to the fan drive unit 103, the flip drive unit 105, the heater drive unit 151, and the outdoor unit control unit 201 so as to stop the operation for temperature adjustment described above. Then, the process proceeds to step SA40. However, when the indoor unit control unit 101 determines, based on the information stored in the data storage area 113, that it is not necessary to stop the operation for temperature adjustment in the abnormal state determined to have occurred in step SA20. In step SA30, the operation need not be stopped. If the operation is not stopped, the operation resumption process in step SA80, which will be described later, becomes unnecessary.

  In step SA40, the indoor unit control unit 101 starts executing the protection function (control content) corresponding to the abnormal state determined to have occurred in step SA20, and advances the process to step SA50.

  It is assumed that the data storage area 113 stores a program corresponding to the control content to be executed when each abnormal state occurs, and the indoor unit control unit 101 protects the program by executing the program. Perform the function.

  The abnormal state in which various information is stored in the data storage area 113 includes failure and malfunction. A failure means that if the abnormal state occurs once, or if the abnormal state occurs repeatedly a predetermined number of times (for example, four times), the corresponding protection function is executed and the operator or the like If the operation for resuming the operation is not performed, the abnormal state in which the operation for adjusting the temperature is not resumed. On the other hand, a malfunction is when an abnormal state occurs, after the corresponding protective function is executed (or after a predetermined time has elapsed), the indoor unit control unit 101 resumes the operation for temperature adjustment described above. This is an abnormal state.

  In the present embodiment, the first protection function that is determined to be a failure when executed by the protection function corresponding to the failure is configured, and the failure is not determined to be executed even if executed by the protection function corresponding to the failure. A second protection function is configured.

  In step SA50, the indoor unit control unit 101 determines whether the abnormal state determined to have occurred in step SA20 corresponds to the above-described failure or the above-described failure, If it is determined that it corresponds to a failure, the process proceeds to step SA90, and if it is determined that it corresponds to a failure, the process proceeds to step SA60.

  The data storage area 113 also stores information about whether each abnormal state corresponds to a failure or a malfunction, and the indoor unit control unit 101 determines whether the abnormal state is in step SA50 based on the information. Make a decision.

  In step SA60, the indoor unit control unit 101 records information specifying the protection function started in step SA40 in the second storage area 112, and advances the process to step SA70.

  In step SA70, the indoor unit control unit 101 determines whether or not the protection function started to be executed in step SA40 is completed, waits until it is completed, and proceeds to step SA80 when it is determined that the protection function has been completed.

  In step SA80, the indoor unit control unit 101 restarts the temperature adjustment operation stopped in step SA30, and returns the process to step SA10.

  In step SA90, the indoor unit control unit 101 notifies that a failure has occurred by a buzzer sound from the buzzer 140 or lighting of the LED 109, and advances the process to step SA100.

  In step SA100, the indoor unit control unit 101 records information for specifying the protection function started in step SA40 in the first storage area 111, and advances the process to step SA110.

  In step SA110, the indoor unit control unit 101 waits until the protection function started to be executed in step SA40 is completed. When it is determined that the protection function has been completed, the indoor unit side abnormality management process is terminated. Note that the indoor unit control unit 101 may continue or terminate the notification operation executed in step SA90 when terminating the indoor unit side abnormality management process.

  In the indoor unit side abnormality management process described above, when an abnormal state occurs in the indoor unit 100, the control content (protection function) corresponding to the abnormal state is executed. Then, information for identifying the executed protection function is recorded in the storage unit 110. Note that the area in the storage unit 110 in which information specifying the protection function is recorded differs depending on the type of protection function executed. Specifically, if the executed protection function corresponds to a failure, the above information is recorded in the first storage area 111 (step SA100), and the executed protection function corresponds to the malfunction. The information is recorded in the second storage area 112 (step SA60).

  FIG. 3 is a diagram schematically illustrating a recording mode in the storage unit 110 of the information for specifying the protection function executed based on the occurrence of the abnormal state as described above.

  Referring to FIG. 3, in the first storage area of storage unit 110, four types of protections “Failure B”, “Failure A”, “Failure D”, and “Failure C” are executed according to the occurrence of the failure. Information for specifying the function is recorded.

  In the second storage area 112, five types of information for specifying the protection function executed based on the occurrence of the failure, “Failure a”, “Failure d”, “Failure e”, “Failure c”, and “Failure b” are recorded. Has been. Each information recorded in the first storage area 111 and the second storage area 112 is numbered 1-9. Each number is assigned in order of failure or failure. That is, in the occurrence of nine abnormal states, including the failure corresponding to the four pieces of information recorded in the first storage area 111 and the failure corresponding to the five pieces of information recorded in the second storage area, The abnormal state corresponding to B occurs most recently, and the abnormal state corresponding to failure C occurs most recently.

  In the first storage area 111 and the second storage area 112, the information for specifying each protection function is not in the order of 1 to 9 as described above, or together with the order, the time when the protection function is executed. It may be recorded together.

  In the indoor unit abnormality management process described above, information for specifying the protection function executed based on the failure and information for specifying the protection function executed based on the failure are stored in different areas of the storage unit 110. Although recorded, these pieces of information need not necessarily be recorded in different areas. The storage areas do not need to be distinguished if they are recorded in such a manner that they can be distinguished from each other, such as by attaching a tag.

  Further, in the indoor unit side abnormality management process described above, the stored areas are recorded so as to be grouped into “failure” and “failure”, but these information are not necessarily recorded. It is not necessary to be grouped at the time of recording. That is, at least information (name or the like given to each protection function) specifying each protection function is recorded when each protection function is executed, and each protection function is stored in the data storage area 113 or the like. Information about whether to be classified as “failure” or “failure” may be stored. Thereby, the indoor unit control unit 101 can recognize whether each protection function recorded as being executed is classified as “failure” or “failure”.

[Outdoor unit abnormal management processing]
FIG. 4 shows an outdoor unit side abnormality management process in which the indoor unit control unit 101 manages the occurrence of an abnormal state in the outdoor unit 200 and executes a protection function corresponding to the occurrence of the abnormal state. It is a flowchart of. The indoor unit control unit 101 is connected to the outdoor unit side described with reference to FIG. 4 together with the indoor unit side abnormality management process described with reference to FIG. 2 in parallel with the control operation for adjusting the indoor temperature. Execute error management processing.

  Referring to FIG. 4, in the outdoor unit side abnormality management process, first, in step SB10, indoor unit control unit 101 receives various types of information received from fan drive unit 203 and compressor drive unit 205 to outdoor unit control unit 201. A request is made to transfer data, and these data are received, and the process proceeds to step SB20.

  In step SB20, the indoor unit control unit 101 uses the data requested to be transferred in step SB10 and the outdoor unit information stored in the data storage area 113 as information for determining whether each element is abnormal. It is determined whether or not any abnormal state has occurred in the machine 200. If it is determined that no abnormality has occurred, the process returns to step SB10, and if it has been determined, the process proceeds to step SB30. In addition, the processing content of step SB30-step SB110 is the same processing content as step SA30-step SA110 demonstrated with reference to FIG.

  That is, first, in step SB30, the indoor unit control unit 101 outputs a control signal to the related elements so as to stop the operation for temperature adjustment described above, and advances the process to step SB40. However, when the indoor unit control unit 101 determines, based on the information stored in the data storage area 113, that it is not necessary to stop the operation for temperature adjustment in the abnormal state determined to have occurred in step SB20. In step SB30, the operation need not be stopped. If the operation is not stopped, the process for restarting the operation in step SB80, which will be described later, is also unnecessary.

  In step SB40, the indoor unit control unit 101 starts execution of the protection function (control content) corresponding to the abnormal state determined to have occurred in step SB20, and advances the process to step SB50. It is assumed that the data storage area 113 stores a program corresponding to the control contents to be executed when each abnormal state occurs, and the indoor unit control unit 101 executes a protection function by executing the program. Execute. Further, in this case, the indoor unit control unit 101 causes the outdoor unit control unit 201 to perform an operation necessary for executing the protection function as necessary.

  In step SB50, the indoor unit control unit 101 determines whether the abnormal state determined to have occurred in step SB20 corresponds to a failure or a failure, and determines that it corresponds to a failure. The process proceeds to SB90, and if it is determined that it corresponds to a defect, the process proceeds to step SB60.

  In step SB60, the indoor unit control unit 101 records information specifying the protection function started in step SB40 in the second storage area 112, and advances the process to step SB70.

  In step SB70, the indoor unit control unit 101 determines whether or not the protection function started to be executed in step SB40 is completed, waits until it is completed, and proceeds to step SB80 if determined to be completed.

  In step SB80, the indoor unit control unit 101 resumes the operation of the temperature adjustment operation stopped in step SB30, and returns the process to step SB10.

  On the other hand, in step SB90, the indoor unit control unit 101 notifies that a failure has occurred by a buzzer sound from the buzzer 140 or lighting of the LED 109, and advances the processing to step SB100.

  In step SB100, the indoor unit control unit 101 records information specifying the protection function started in step SB40 in the first storage area 111, and advances the process to step SB110.

  In step SB110, the indoor unit control unit 101 waits until the protection function started to be executed in step SB40 is completed. When it is determined that the protection function has been completed, the outdoor unit side abnormality management process is terminated. Note that the indoor unit control unit 101 may continue or terminate the notification operation executed in step SB90 when terminating the outdoor unit side abnormality management process.

  In the outdoor unit side abnormality management process described above, the information specifying the protection function executed based on the failure and the information specifying the protection function executed based on the failure can be distinguished from each other by attaching a tag or the like. If recorded in a manner, it is not necessary to distinguish the storage areas. In addition, as for this information, at least when each protection function is executed, information for specifying each protection function is recorded, and whether each protection function should be classified as “failure” in the data storage area 113 or the like. If information about whether or not to be classified as “failure” is stored, it is not necessary to group into “failure” and “failure” when recorded.

[Error occurrence information display processing]
In the air conditioner 1, by appropriately operating the remote controller 130 or the like, the history information of the protection function executed by the air conditioner 1 stored in the storage unit 110 can be displayed on the display unit mounted on the remote controller 130 or the like. . FIG. 5 is a flowchart of processing (abnormality occurrence information display processing) executed by the indoor unit control unit 101 in order to display such history information on a display unit such as the remote controller 130. Hereinafter, the contents of the processing will be described with reference to FIG.

  When a predetermined operation is performed on the remote controller 130, the indoor unit control unit 101 starts the abnormality occurrence information display process. Referring to FIG. 5, in the abnormality occurrence information display process, first, in step S10, indoor unit control unit 101 waits for input of information (display target information) that specifies the type of history information to be displayed. Here, a message for prompting input of display target information may be displayed on the display unit of the remote controller 130. And if display object information is inputted, indoor unit control part 101 will advance processing to Step S20.

  In step S20, the indoor unit control unit 101 checks the input information, and if it is determined that the information specifying the execution history of the protection function for the failure is input, the process proceeds to step S30, and the protection function corresponding to the malfunction If it is determined that the information for specifying the execution history is input, the process proceeds to step S40. If it is determined that the information for specifying the execution history of the protection function corresponding to both the failure and the malfunction is input, the process proceeds to step S50. Proceed.

  In step S30, the indoor unit control unit 101 reads the protection function execution history ("failure B", "failure A", "failure D", and "failure C" in FIG. 3) recorded in the first storage area 111. Then, the process proceeds to step S60.

  In step S40, the indoor unit control unit 101 executes the recorded protection function execution history from the second storage area 112 ("failure a", "failure d", "failure e", "failure c", "failure b" in FIG. 3). ]) Is read and the process proceeds to step S60.

  In step S50, the protection function execution history recorded in both the first storage area 111 and the second storage area 112 is read, and the process proceeds to step S60.

  In step S60, the indoor unit control unit 101 displays the execution history read in any of steps S30 to S50 on the display unit of the remote control 130, and proceeds to step S70.

  Here, FIG. 6A shows an example of the execution history display screen read in step S30, FIG. 6B shows an example of the execution history display screen read in step S40, and An example of a display screen of the execution history read in S50 is shown in FIG.

  In the abnormality occurrence information display process described above, information for specifying the protection function corresponding to “failure” and information for specifying the protection function corresponding to “failure” are recorded in different areas in the storage unit 110. In step S30 to step S50, the indoor unit control unit 101 selects an area from which the protection function execution history is read based on the input information. If the information for specifying the protection function corresponding to “failure” and the information for specifying the protection function corresponding to “failure” are recorded in the same area, the area to be read is read in steps S30 to S50. Is selected, based on the input information, an execution history corresponding to “failure” and / or an execution history corresponding to “failure” is appropriately extracted and displayed in step S60.

  Moreover, in this Embodiment demonstrated above, as demonstrated with reference to FIG. 6 (A)-FIG.6 (C), the execution history of the protection function corresponding to a failure, and / or the protection function corresponding to a malfunction Although the execution history is displayed as a list, these may be displayed individually. That is, the air conditioner 1 first receives an input of the type of protection function (failure, failure, or both) for displaying the execution history, and thereafter, executes the execution history one by one for the designated type of protection function. You may comprise so that it may display in order. The display order may be the order in which they occurred or the order that goes back from the most recent failure.

  Further, such execution history display may be performed on the display unit of the remote controller 130, or a 7-segment LED for indoor temperature display as shown in FIG. It may be provided and performed using the 7 segment LED. Specifically, the display of the execution history of the protection function may be performed by displaying a code corresponding to each protection function using the 7-segment LED.

  Here, regarding the display of the execution history of the protection function, the air conditioner 1 determines whether to display “failure” or “failure”, or whether to display both in the order in which they occurred as in the past. The worker may be set in advance, and the execution history may be displayed according to the setting contents.

  In addition, when the execution history of one of “failure” and “failure” is displayed one by one after the other, the other execution history is displayed one by one, “failure” and “failure” The execution history may be displayed in different modes such as different colors.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a functional block diagram of the air conditioner which is one embodiment of the air conditioner of the present invention. It is a flowchart of the indoor unit side abnormality management process which the indoor unit control part of FIG. 1 performs. It is a figure which shows typically the recording aspect of the execution log | history of the protection function in the 1st storage area of FIG. 1, and a 2nd storage area. It is a flowchart of the outdoor unit side abnormality management process which the indoor unit control part of FIG. 1 performs. It is a flowchart of the abnormality occurrence information display process which the indoor unit control part of FIG. 1 performs. FIG. 6 is a diagram illustrating an example of a screen displayed on the display unit of the remote controller of FIG. 1 in the abnormality occurrence information display process of FIG. 5. It is a figure which shows typically an example of the memory | storage aspect of the log | history information of the produced | generated abnormality memorize | stored in the conventional air conditioner. It is a figure for demonstrating the display mode of the historical information in the indoor unit of a general air conditioner. It is a figure for demonstrating the display mode of the historical information in the indoor unit of a general air conditioner. It is a figure for demonstrating the display mode of the historical information in the indoor unit of a general air conditioner.

Explanation of symbols

  1 Air Conditioner, 100 Indoor Unit, 101 Indoor Unit Control Unit, 102, 202 Power Supply Control Unit, 103, 203 Fan Drive Unit, 104, 204 Fan Motor, 105 Flip Drive Unit, 106 Flip Motor, 107, 207 Communication Control Unit, 108 LED control unit, 109 LED, 110 storage unit, 111 first storage area, 112 second storage area, 113 data storage area, 120 sensor, 130 remote control, 140 buzzer, 151 heater drive unit, 152 heater, 200 outdoor unit, 201 Outdoor unit control unit, 205 compressor driving unit, 206 compressor.

Claims (4)

Storage means;
Display means;
An execution unit that executes a first protection function that is determined to be a failure when executed when an abnormality occurs, or a second protection function that is not determined to be a failure even if executed.
The storage means stores the execution of the first protection function or the second protection function, and the execution history of the first protection function and the second protection stored in the storage means Control means for extracting the function execution history independently of each other;
The control means includes a first display mode for displaying the execution history of the first protection function stored in the storage means on the display means, and an execution history of the second protection function stored in the storage means. And an air conditioner having a second display mode for displaying on the display means.   The control means further includes a third display mode in which the display means displays the execution history of the first protection function stored in the storage means and the second protection function together. Air conditioner as described in.   3. The control unit according to claim 2, wherein, in the third display mode, the control unit causes the display unit to display the execution history of the first protection function and the execution history of the second protection function in different modes. Air conditioner.   The air conditioning according to any one of claims 1 to 3, wherein the control unit stores the execution history of the first protection function and the execution history of the second protection function in the storage unit in different modes. Machine.

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