JPH063636B2 - Air conditioner abnormality display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an abnormality display device for an air conditioner.

(Prior Art) Conventionally, when an air conditioner is inspected, an abnormal item is displayed by an inspection person such as a service person performing an inspection operation.
This made it possible to prepare a confirmation of the faulty part and speed up the repair.

The device for displaying the internal information is composed of a plurality of abnormal display elements (for example, LEDs), and the inspection elements are made to correspond to the respective display elements, and the abnormality / normality of the corresponding inspection items is indicated by turning on / off the display elements. Is displayed. Therefore, the inspector performs an inspection operation and repairs only the inspection item corresponding to the lighted display element among the plurality of display elements.

(Problems to be Solved by the Invention) However, at present, the inspection items tend to be further subdivided so that the inspector can specify the defective portion more. As a result, in the conventional abnormality display device, the number of display elements is further increased, and the inspector has a high possibility of erroneously recognizing the corresponding inspection item according to the increase of the display elements.

Therefore, an abnormality display device for an air conditioner has been considered, which allows an inspector or the like to reliably identify an abnormal item in the inspection item and display a large number of inspection items with a small number of display elements.

The configuration block diagram of the abnormality display device of this air conditioner is shown in FIG.
Shown in the figure. First, in the remote control device a, a code corresponding to an inspection item to be checked for abnormality is set by the setting device b.

When the send button c is pressed, a signal designating the set code is sent by the sending circuit d to the control circuit g via the receiving circuit f of the indoor controller e. The control circuit g analyzes this signal and detects an abnormality detecting means corresponding to the setting code (a fan abnormality detection circuit h of the indoor control circuit e and a temperature detection circuit i,
Overcurrent detection circuit k and temperature detection circuit 1 in the outdoor controller j
Etc.) to determine whether or not there is an abnormality, and if there is an abnormality, the operation lamp of the open circuit m blinks, and if there is no abnormality, the operation lamp is turned off.

With such a configuration, it is possible to display the presence or absence of anomalies in many inspection items in various equipment in the air conditioner with a small number of display elements, and as a result, the inspector can reliably identify the abnormal items without making a mistake. It becomes possible to do.

However, in this abnormality display device, the inspection item is specified by the setting device b of the remote control device a of the remote control device.
There is a problem that this designation is not displayed and it is not possible to determine which item was used after the designation.

The present invention has been made in view of the above circumstances, and an object thereof is to also use an operation unit and a display unit of a remote control device for abnormal inspection, and display inspection items on the display unit of the remote control device during inspection. By doing so, it is an object of the present invention to provide an abnormality display device for an air conditioner that allows an inspector or the like to reliably and quickly determine an abnormal item in the inspection instep.

[Configuration of Invention] (Means for Solving Problems) An operation unit for setting various operation contents, a transmission unit for transmitting the setting contents set by the operation unit, and a display unit for displaying the setting contents. In the air conditioner operated by the remote control device that has, multiple abnormality detection means are provided in each part of the inspection target device of the air conditioner, and the remote control device selects the state to set the normal operation contents and the abnormality detection target A switching means for switching to a state in which the abnormality detection target is selected, and a selection means for selecting a specific abnormality detection means from a plurality of abnormality detection means based on the operation of the operation unit when the state for selecting the abnormality detection target is switched by the switching means. , When the switching means switches to a state in which the abnormality detection target is selected, the display content of the display section is replaced with the normal setting content and the content for identifying the abnormality detection means selected by the selection means is displayed. A display unit for transmitting a code signal corresponding to the abnormality detection unit selected by the selection unit, and a receiving unit for receiving the code signal transmitted from the remote control device in the air conditioner body. An abnormality display device for an air conditioner, comprising: a main body display section that displays whether or not the abnormality detection means corresponding to the code signal received by the reception means detects an abnormality.

(Operation) With the above-described configuration, by selecting the abnormality detecting means to be inspected by the remote control device, it is possible to determine whether or not an abnormality is detected in each abnormality detecting means, and to identify the selected abnormality detecting means. Is displayed on the display of the remote control device, the items being inspected can be recognized very easily, and since the remote control device that sets various operation contents during normal operation is also used to specify the inspection items, a special inspection device can be used. It becomes unnecessary.

(Example) Hereinafter, an example of the present invention is described based on an accompanying drawing.

FIG. 2 is a block diagram of a control device for an air conditioner. The control device includes an indoor controller 21 installed indoors, an outdoor controller 22 installed outdoors, and a crossover 2 connecting these two.
3 and 3.

The indoor controller 21 includes an indoor fan abnormality detector 25 for detecting an abnormality of the indoor fan 24, a room temperature sensor 26 for detecting room temperature, a humidity sensor 27 for detecting humidity, and a temperature of the indoor heat exchanger 28. A temperature sensor 29 for detecting, an indoor unit abnormality detecting means group including a voltage sensor 30 for detecting a power supply voltage, and an indoor control circuit 31 for transmitting information to the outside and controlling the operation of the air conditioner are provided. ing. The indoor control circuit 31 also has a discriminating circuit that receives a detection signal from each sensor and determines whether or not there is an abnormality.

On the other hand, the outdoor controller 22 includes a temperature sensor 33 that detects a discharge temperature to the outdoor heat exchanger 32, an outdoor unit abnormality detection unit group including a current sensor 35 that detects an overcurrent of the inverter 34, and these sensors. An outdoor control circuit 36 for transmitting a detection signal from the indoor control circuit 31 and controlling the inverter 34 is provided.

Further, a crossover abnormality detecting means group including an unillustrated miswiring detection circuit and the like is connected to the crossover 23.

Here, the configuration of the discrimination circuit 1 provided in the indoor control circuit 31 is shown in FIG. The indoor unit block abnormality determination unit 2, the outdoor unit block abnormality determination unit 3, and the crossover line block abnormality determination unit 4 are each an indoor unit abnormality detection unit group 5, an outdoor unit abnormality detection unit group 6, and a crossover line abnormality output unit group 7. When a detection signal from the sensor is input and at least one sensor in the detection means detects an abnormality, the detection is detected and an abnormality signal S indicating the abnormality is output. The indoor unit block abnormality determining unit 2, the outdoor unit block abnormality determining unit 3, and the crossover block abnormality determining unit 4 are connected to the heating lamp 8, the cooling lamp 9, and the dehumidifying lamp 10, respectively, and determine whether there is an abnormality in the entire device. It is connected to the overall abnormality discriminating unit 11.

Also, a code discriminating unit 14 for discriminating the code of the received signal is connected to the receiving unit 13 for receiving the signal from the remote control device 12, and the code discriminating unit 14 has one sensor based on the code. The display selection unit 15 is connected for selecting. Further, usually, the operation / stop of the air conditioner is controlled to turn off / on the operation lamp 16,
In the event of an abnormality, the output signal from the overall abnormality determination unit 11 controls the turning on / off of the operation lamp 16, but the code determination unit 14
A display switching unit 17 is provided which controls the turning on / off of the operation lamp 16 in response to an output signal from the display selecting unit 15 when a signal from is input.

The heating lamp 8, the cooling lamp 9, the dehumidifying lamp 10 and the operation lamp 16 are provided in the casing of the indoor unit as shown in FIG.

Further, as the remote control device 12, a wireless remote control which becomes an operation remote control for abnormality inspection by turning on a changeover switch located on the back surface as shown in FIG. 4 is used. When the changeover switch is turned on, the indoor unit abnormality detecting means group 5, the outdoor unit abnormality detecting means group 6 and the crossover line abnormality detecting means are respectively corresponding to the heating, cooling and dehumidifying modes based on the operation of the operation mode switching button 41. The group 7 is designated, and further, by operating the operation / stop button 42, a transmission signal of a code designating the sensors in each abnormality detection means group is sequentially transmitted from the transmission unit 43.

Then, the discrimination circuit 1 and each of the abnormality detection means groups 5 to 7,
The remote control device 12 and the respective lamps 8 to 10 and 16 constitute an abnormality display device for the air conditioner.

Next, the operation of the abnormality display device configured as described above will be described with reference to the flowchart of FIG.

First, when one of the abnormality detecting means detects an abnormality in the operating air conditioner, the block abnormality determining section 2, 3 or 4 detects the abnormality corresponding to the abnormality detecting means group to which the abnormality detecting means belongs ( Process 51), from here, the abnormal signal S is output to the heating lamp 8, the cooling lamp 9 or the dehumidifying lamp 10 corresponding to the block. This allows
If the abnormal block is an indoor unit block, the heating lamp 8
If it is an outdoor unit block, the cooling lamp 9 blinks, and if it is a crossover block, the dehumidifying lamp 10 blinks (Process 5).
2).

On the other hand, the abnormality signal S output from the block abnormality determining unit 2, 3 or 4 that has detected an abnormality is also input to the overall abnormality determining unit 11, and the overall abnormality determining unit 11 turns on the operation lamp 16 via the display switching unit 17. It blinks (process 53) and commands the indoor control circuit 31 to stop the air conditioner (process 5).
4). In this way, the inspector can detect which block has an abnormality by blinking the lamp.

After that, a changeover switch located on the rear surface of the remote control device 12 is turned on to serve as an abnormality checking remote controller, and an abnormal block is designated based on the operation of the operation mode changeover button 41. Then, when the run / stop button 42 is pressed,
The transmission signal of the code designating the first abnormality detection means in the abnormal block is transmitted from the transmission unit 43. This transmission signal is received by the receiving unit 13 in the discriminating circuit 1, and the code discriminating unit 14 discriminates the designated code. Then, by receiving a signal from the code discrimination unit 14, the display switching unit 17
Shuts off the input from the overall abnormality determination unit 11 to turn off the operation lamp 16 and connects the input from the display selection unit 15 to the operation lamp 16. Based on the designated code discriminated by the code discriminating unit 14, the display selecting unit 15 displays the output signal from the first abnormality detecting means in the abnormal block to the display switching unit 1.
7 to the operation lamp 16. In this way, the operation lamp 16 blinks when the first abnormality detecting means detects an abnormality.

Next, when the run / stop button 42 of the remote control device 12 is pressed again, the transmission signal of the code designating the second abnormality detecting means is transmitted this time, and the inspection of the second abnormality detecting means is performed in the same manner. . At this time, the number assigned to the corresponding inspection location is displayed on the temperature setting value display section 44 of the remote control device 12. This allows the inspector to check the inspection location.

In this way, each time the run / stop button 42 is pressed, the abnormality detecting means to be sequentially designated is switched, whereby all the abnormality detecting means in the abnormal block can be inspected. In addition, the temperature setting buttons up45, do of the remote control device 12 can be used to specify a specific inspection location.
Use wn46 to check the location by pressing the up button +1, d
The down button can be operated to decrease the value by 1, and by pressing the setting change button 47, the designated code corresponding to the inspection location can be transmitted. That is, the setting change button 47 transmits the designation code of the inspection point currently displayed on the temperature setting value display section 44.

The operation lamp 1 is provided without using the heating lamp 8, the cooling lamp 9 and the dehumidifying lamp 10 as means for displaying the abnormal block.
Only 6 may be used. In this case, as the configuration of the determination circuit 1, as shown in FIG. 6, the outputs of the indoor unit block abnormality determination unit 2, the outdoor unit block abnormality determination unit 3, and the crossover block abnormality determination unit 15 are connected to the display selection unit 15. do it.

The operation of the abnormality display device having such a configuration will be described with reference to the flowchart of FIG.

If there is an abnormality, first turn on the changeover switch located on the rear surface of the remote control device 12 to make it a remote control for abnormality check, and then operate the changeover button 41 once to specify the block to be checked. (Process 71). For example, when the indoor unit block is designated and then the run / stop button 42 is pressed, the transmission signal of the code designating the indoor unit block is transmitted from the transmission unit 43, and the code determination unit 14 determines the code and selects the display. It is output to the unit 15. Display selection unit 15
Then, based on the input code, the output from the indoor unit block abnormality determination unit 2 is output via the display switching unit 17 to the operation lamp 1
Connect to 6. As a result, when there is an abnormality in the indoor unit block, the operation lamp 16 blinks (steps 72, 7).
3) If there is no abnormality, the light is turned off (processes 72, 74).

After detecting a block in which an abnormality has occurred in this way, each abnormality detecting means in the abnormal block is inspected in the same manner as in the above embodiment.

[Effects of the Invention] As described above, according to the present invention, the following excellent effects are exhibited.

(1) Since the remote control device that sets the normal operation contents can also be used for selecting the abnormality detection means, the inspection dedicated device is not required and the inspection can be easily performed.

(2) By selecting the item you want to inspect with the remote control device, you can determine whether or not an abnormality has been detected by each abnormality detection means. It is possible to quickly and surely discriminate the abnormal item even with the main body display unit having a small number of display elements.

(3) Since the content for identifying the selected abnormality detection means is displayed on the display unit of the remote control device instead of the normal setting content display, the inspector can recognize the item currently inspected extremely easily and reliably. .

[Brief description of drawings]

FIG. 1 is a block diagram of an abnormality display device for an air conditioner according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of a control device for an air conditioner to which the present invention is applied, FIGS. 3 and 4. Is a perspective view of an indoor unit of an air conditioner and a perspective view of a remote control device, respectively. FIG. 5 is a flowchart showing the operation of the embodiment, and FIG.
FIG. 7 and FIG. 7 are configuration diagrams and flow charts showing other embodiments, respectively, and FIG. 8 is a configuration diagram of a conventionally considered abnormality display device for an air conditioner. In the figure, 2, 3, and 4 are block abnormality determining units, 5, 6, and 7 are abnormality detecting means, 8 is a heating lamp, 9 is a cooling lamp, and 10 is a cooling lamp.
Is a dehumidification lamp, 12 is a remote control device, and 16 is an operation lamp.

Claims (2)

[Claims] 1. An air conditioner operated by a remote control device having an operation unit for setting various operation contents, a transmission unit for transmitting the setting contents set by the operation unit, and a display unit for displaying the setting contents. In the machine, a plurality of abnormality detection means is provided in each part of the inspection target device of the air conditioner, and the remote control device, switching means for switching between a state in which normal operation contents are set and a state in which an abnormality detection target is selected, and ,
When the switching means switches to a state in which an abnormality detection target is selected, a selection means for selecting a specific abnormality detection means from the plurality of abnormality detection means based on the operation of the operation section, and an abnormality detection by the switching means When the target is switched to the selection state, the display content of the display section is replaced with the normal setting content, and the display means for displaying the content for identifying the abnormality detection means selected by the selection means, and the selection means. The air conditioner main body receives the code signal transmitted from the remote control device, and the reception means receives the code signal. An abnormality display device for an air conditioner, comprising: a main body display section for displaying whether or not the abnormality detection means corresponding to the code signal has detected an abnormality. 2. The abnormality display device for an air conditioner according to claim 1, wherein the display unit of the remote control device is a set temperature display unit for displaying a numerical value.