KR100223408B1 - Test equipment control method for outdoor unit of air conditioner - Google Patents

Abstract

The present invention relates to a method for controlling performance inspection of an outdoor unit of an air conditioner. In particular, a temporary power failure or an end of work in an inspection unit stores a section and data at this point in time, thereby reducing inspection time by inspecting from a section at the end of a work point when re-inspecting. Provides a performance test control method for an outdoor air conditioner to obtain data. The present invention comprises the steps of storing the heating operation and inspection data in one section at the same time operation of the start switch; Detecting abnormal operation in the heating operation step; Detecting a transition to two sections; Storing the cooling operation and inspection data in two sections; Detecting abnormal operation in the cooling operation step and maintaining measured data at a current position when power is 'off' and waiting for a power failure to return; Detecting a transition to three sections; Transmitting data stored in the third section to an external main computer; Detecting abnormal operation in the data transmission step to maintain measured data at a current position when power is 'off' and waiting for a power failure to return; Detecting a transition to four sections; Detecting abnormal operation during refrigerant recovery in four sections to maintain measured data at a current position when the power is 'off' and waiting for a power failure to return; And erasing and initializing all data.

Description

Performance test control method of air conditioner outdoor unit

The present invention relates to a method for controlling performance inspection of an outdoor unit of an air conditioner. In particular, a temporary power failure or an end of work in an inspection unit stores a section and data at this point in time, thereby reducing inspection time by inspecting from a section at the end of a work point when re-inspecting. The present invention relates to a method for controlling performance test of an outdoor unit of air conditioner capable of obtaining data.

There is a process of determining a final sum or a part by performing a basic performance test on a product assembled as a final step of the air conditioner outdoor unit manufacturing process. The performance test for the outdoor unit of the air conditioner as described above is connected to the performance tester on the product transported on the conveyor to measure the pressure while circulating the refrigerant for a predetermined time to determine the final sum, part of the product. If the pressure shown in the pressure gauge is within the setting range, it is determined to pass.

However, in the performance inspection of the general air conditioner outdoor unit as described above, it is not equipped to prepare for an accident during the inspection, that is, a temporary power failure or a system error, so that the re-inspection at the time of power failure or the end of work in any inspection interval is not provided. In addition to the problem that the test time is longer due to the need to restart the test from the beginning because all the measured data are destroyed, the specific test that is measured in each section is performed only in that section, so it is practically difficult to retest and cannot expect accurate test. There was also.

The present invention has been made in view of the above-mentioned, it is possible to reduce the inspection time by reducing the inspection time by retrieving the section and data at this point in time when the temporary power failure or end of work in any inspection section and re-inspection. The purpose of the present invention is to provide a method for controlling performance inspection of an outdoor unit of air conditioner.

1 is a schematic view showing the structure of an air conditioner outdoor unit performance test room for the present invention.

Figure 2a and 2b is a control flow chart for the performance test control method of the outdoor air conditioner of the present invention.

Explanation of symbols on the main parts of the drawings

1; cooling switching position sensor 2; data transmission position sensor

3; Reject position sensor

Performance test control method of the outdoor air conditioner according to the present invention for achieving the above object, the step of storing the heating operation and inspection data in one section at the same time operation of the start switch; Detecting abnormal operation in the heating operation step; Detecting a transition to two sections; Storing the cooling operation and inspection data in two sections; Detecting abnormal operation in the cooling operation step and maintaining measured data at a current position when power is 'off' and waiting for a power failure to return; Detecting a transition to three sections; Transmitting data stored in the third section to an external main computer; Detecting abnormal operation in the data transmission step to maintain measured data at a current position when power is 'off' and waiting for a power failure to return; Detecting a transition to four sections; Detecting abnormal operation during refrigerant recovery in four sections to maintain measured data at a current position when the power is 'off' and waiting for a power failure to return; And erasing and initializing all of the data, and storing the section and data at this point in time during the temporary power failure or the end of the work in each section to resume the inspection from the section at the end of the work in re-inspection.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will now be described based on the accompanying drawings.

1 is a schematic view showing a structure of an air conditioner outdoor unit performance test room for the present invention, and FIGS. 2A and 2B are control flowcharts of a method for controlling performance test of the air conditioner outdoor unit according to the present invention.

As shown in FIG. 1, the performance test room for the performance test control method of the present invention includes four test sections, that is, one section of a heating inspection section, two sections of a cooling inspection section, three sections of a data transmission section, It is divided into four sections, which is a refrigerant recovery section, so that a series of continuous inspections can be performed along the inspection section described above.

In this case, switching to each inspection section is performed by a position sensor. For example, switching from heating to cooling is performed by a cooling switching position sensor 1, and after the cooling inspection, the data transmission position sensor 2 is turned on. Is switched to the data transmission section. In addition, at the distal end of the refrigerant recovery section, a locator position sensor 3 is installed so that all data is erased by turning on the sensor 3, and the inspection of one cycle is completed by such section-by-section control. It is supposed to be.

The inspection section is performed in the inspection section while moving the inspection section as a product, for example, an air conditioner outdoor unit under test, and data measured in each inspection section is stored and transmitted to an external main computer at a certain time point. As the final inspection data is output, the operator can easily check.

On the other hand, the performance inspection control method of the air conditioner outdoor unit according to the present invention, as shown in Figure 2a and 2b, the step of storing the heating operation and inspection data in one section at the same time as the operation of the start switch (S10); Detecting an abnormal operation in the heating operation step (S20); Detecting a transition to two sections (S30); Storing cooling operation and inspection data in two sections (S40); Detecting abnormal operation in the cooling operation step and maintaining measured data at a current position when the power is 'off' and waiting for a power failure to return (S50); Detecting a transition to three sections (S60); Transmitting data stored in the third section to an external main computer (S70); Detecting abnormal operation in the data transmission step, waiting for the return of the power failure while maintaining the measured data at the current position when the power is 'off' (S80); Detecting a transition to four sections (S90); Detecting abnormal operation during the refrigerant recovery in the four sections to maintain the measured data at the current position when the power 'off' (S100) waiting for the power failure to return (S100); And erasing and initializing all data (S110).

Looking at this in more detail as follows.

When power is applied (S1), the function switches are checked to display corresponding light emitting diodes and pressures. Here, the check of the function switch means, for example, to turn on the V1 valve in the case of the room air conditioner outdoor unit, and to turn it off in the case of the package air conditioner outdoor unit. The pressure display also samples and displays data coming from the pressure gauge for one second.

Then, when the start switch is 'on' (S2), the 4-way selector valve and the fan 'on' to perform a heating operation (S10).

At this time, heating data storage in heating operation is saved from the moment when the start relay is 'on'. After saving one byte of data just before starting as initial value, 20 bytes at intervals of 3 seconds between 0 and 1 minute. It stores 12 bytes at intervals of 5 seconds between 1 and 2 minutes, and stores 24 bytes at intervals of 10 seconds between 2 and 6 minutes.

Subsequent data is only displayed, not stored, and waits for a signal from the 4-way switch valve. The size of the pressure storage data during heating is 57 bytes in total.

When the power is 'off' during the test in step S10, the measured data is erased and returned to the initial state and waits for the return of the power failure (S20). When the power is 'on', heating is performed.

When the heating operation is terminated in the normal operation, it is detected whether the switch to the two sections (S30), which is made by the 'on' operation of the cooling switching position sensor.

When the second section is confirmed in the above step, the cooling operation is performed to store the measured data (S40), and the pressure data starts to be stored from the moment when the 4-way switching valve is 'off'.

At this time, the heating final pressure data is stored in one byte, and then stored in the same manner as in heating, and waited until a data transmission signal is received. Again, the pressure store has a total size of 57 bytes.

In the step (S50) of detecting the power 'off' during the cooling operation, the power is 'off' and at the same time maintains the data measured up to the present and waits for the power failure to be returned. If it is before, the cooling inspection is re-executed (S53). If it is after determination, the cooling error is re-executed (S54) after displaying the error.

Thereafter, the contact point of the data transmission position sensor is detected to check whether the switch has been switched to three sections (S60), and when it is confirmed, the stored data is transmitted to the external main computer in the heating and cooling operation (S70).

Here, the data transmission is repeated at least three times, so that error data due to noise can be sorted, and the operation maintains the cooling operation.

The abnormal operation detection step (S80) of the data transmission step is to wait while maintaining the data when the power 'off', when the power is 'on' to maintain the existing data and to perform the cooling operation for the refrigerant recovery.

After the step as described above, the switch to section 4 is checked to recover the refrigerant. (S90)

When the power is 'off' during the recovery of the refrigerant, the measured data is maintained at the current location and is waiting (S100). Then, the operation for recovering the refrigerant when the power failure returns, that is, restarts the system (S102).

Thereafter, when the ridge position sensor installed at the end of the four sections is 'on', all data are erased and the process returns to the initial state (S110).

As described above, the method for controlling the performance test of the outdoor unit of the air conditioner according to the present invention stores the data and the section measured until the end of the work when the power failure or the work is terminated in any section of the series of test work. From this point on, control is performed.

As described above, the method for controlling the performance inspection of the outdoor unit of the air conditioner according to the present invention stores the measured data and the interval until the end of the operation when the power failure or the operation is terminated in an arbitrary section of the series of inspection operations, and then re-inspects. The inspection time can be controlled from this point of time, so that inspection time can be shortened, and abnormal data or defective products of the previous day can be screened without re-inspection in the next inspection, and the accurate data can be calculated so that the defective products can be shipped. It can be minimized.

In the above, one embodiment for performing the performance test control method of the air conditioner outdoor unit according to the present invention has been shown and described, but the present invention is not limited to the above-described embodiment, but the present invention as claimed in the following claims Various changes can be made by those skilled in the art without departing from the gist of the present invention.

Claims (8)

(a) storing heating operation and inspection data in one section simultaneously with the operation of the start switch; (b) detecting abnormal operation in the heating operation step; (c) detecting a transition to section 2; (d) storing the cooling operation and inspection data in section 2; (e) detecting abnormal operation in the cooling operation step to maintain measured data at a current position when power is 'off' and waiting for a power failure to return; (f) detecting a transition to section 3; (g) transferring the data stored in the section 3 to an external main computer; (h) detecting abnormal operation in the data transmission step to maintain measured data at a current position when the power is 'off' and waiting for a power failure to return; (i) detecting a transition to section 4; (j) detecting abnormal operation during the recovery of the refrigerant in the section 4, waiting for the return of the power failure while maintaining the measured data at the current position when the power is 'off'; And (k) erasing and initializing all data, and storing a section and data at this point in case of temporary power failure or end of work in each section to resume the inspection from a section at the end of the task at the time of re-inspection. Performance test control method of air conditioner outdoor unit. The method of claim 1, wherein in the step (a), the pressure data is stored from the moment when the start relay is 'on', and after storing one byte of data immediately before starting as an initial value, 3 seconds between 0 and 1 minute. Stores 20 bytes at intervals, 12 bytes at intervals of 5 seconds between 1 and 2 minutes, and 24 bytes at intervals of 10 seconds between 2 and 6 minutes. Performance test control method of the air conditioner outdoor unit, characterized in that stored in the size of. The method of claim 1, wherein in the step (b), when the power is 'off', data is erased and initialized at the same time. The method of claim 1, wherein in step (d), the pressure data is stored from the moment when the 4-way switch valve relay is 'off', and after storing 1 byte of heating final pressure data as an initial value, 20 bytes are stored every 3 seconds, 12 bytes are stored every 5 seconds between 1 and 2 minutes, and 24 bytes are stored every 10 seconds between 2 and 6 minutes. Performance test control method for an air conditioner outdoor unit, characterized in that the storage of 57 bytes in size. The air conditioner outdoor unit according to claim 1, wherein in step (e), it is determined whether or not an error is determined when the power failure returns, and the cooling inspection is re-executed before the determination, and after the determination, the cooling inspection is re-executed. Performance test control method. The method of claim 1, wherein the data transmission in step (g) is repeated at least three times. The method of claim 1, wherein the cooling operation for recovering the refrigerant is performed while maintaining the existing data when the power failure is restored in the step (h). 2. The method of claim 1, wherein the system is restarted when the power failure returns in the step (j).

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