KR19990012289A - Performance inspection system and control method of air conditioner outdoor unit and room air conditioner outdoor unit - Google Patents

Abstract

The present invention provides a performance inspection system and a control method of a cooling only package air conditioner outdoor unit and a room air conditioner outdoor unit capable of automatically performing performance checks and judgments on all balanced cooling air conditioner outdoor units and room air conditioner outdoor units. The present invention is divided into three sections, the inspection section, the data transmission section and the inspection end section conveyer for conveying the air conditioner outdoor unit to be inspected; At least one cooling load variable performance tester capable of changing a load according to a model change or a capacity change of the outdoor unit by measuring the pressure while circulating the refrigerant connected to a connection pipe connected to the air conditioner outdoor unit transported on the conveyor; A trolley conveyor for transferring the performance tester at the same speed as that of the air conditioner outdoor unit and a power rail for supplying power in parallel with the trolley conveyor; A control device which displays the pressure measured from the pressure sensor of the performance tester and determines the sum / part based on the measured data, and varies the load of the performance tester according to the model change and the capacity change of the outdoor unit; A data transmission position sensor installed between an inspection section and a data transmission section of the conveyor; And a reset position sensor installed at the distal end of the inspection end section.

Description

Performance inspection system and control method of air conditioner outdoor unit and room air conditioner outdoor unit

The present invention relates to a test system for determining the sum or part by performing a basic performance test on the assembled air conditioner outdoor unit, and in particular, a cooling-only packaged air conditioner outdoor unit and a room air conditioner for all types of cooling while varying the load according to the type or capacity of the air conditioner outdoor unit. The present invention relates to a performance inspection system for an air conditioner outdoor unit and a room air conditioner outdoor unit that can perform not only a performance test for an outdoor unit but also an inspection and a judgment can be performed automatically, and a control method thereof.

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.

A typical example of the inspection system used for the performance test of the air conditioner outdoor unit as described above is shown in FIG. 1, which is briefly described as follows.

The figure schematically shows a performance test system of a general air conditioner outdoor unit. In the drawing, reference numeral 1 denotes an air conditioner outdoor unit under test, 2 indicates a performance tester, 3 indicates a connection pipe, and 4 indicates a pressure gauge.

As shown, the air conditioner outdoor unit 1 to be inspected is configured to sequentially move on a conveyor (not shown), and the performance testing device 2 is connected to a trolley conveyor (not shown) installed at the top of the conveyor. It is made to move at about the same speed as the hanging outdoor unit 1. In addition, the air conditioner outdoor unit 1 and the performance tester 2 is connected by a connecting pipe 3, the pressure gauge 4 is provided on one side of the performance tester (2).

The performance test system of a general air conditioner outdoor unit configured as described above operates the start switch and simultaneously starts the air conditioner outdoor unit, and the refrigerant in the outdoor unit is circulated through the performance test device through the connection pipe. The pressure is measured and displayed on the pressure gauge. After a certain time, the inspector determines the sum of the parts by looking at the pressure displayed on the pressure gauge.

However, as described above, the performance test system of a general air conditioner outdoor unit is a visual inspection system that attaches an analog pressure gauge to a performance tester and checks the scale of the pressure gauge to determine the sum or part. Due to the lack of accuracy and accuracy, the reliability of the test was problematic.

In addition, the conventional performance inspection system is configured to inspect only one model and capacity determined in structure, making it difficult to inspect while varying to the appropriate load according to the model or capacity change of the air conditioner outdoor unit, which not only reduces the reliability of the inspection but also makes the operation cumbersome. There was a problem. That is, conventionally, in performing the performance test for the outdoor air conditioner, the specification of the product is changed by having a performance tester for package air conditioners, a performance tester for room air conditioners, and a plurality of performance test devices each having a capacity for each balance. Whenever the work was changed to a suitable performance test device or the assembly line was in progress. Therefore, the inconvenience of inspection work, the deterioration of quality and the decrease of productivity were inevitable.

In addition, the conventional performance test system is not equipped with a device or structure that displays when an abnormal operation, for example, is stopped or restarted due to an abnormal occurrence (temporary power failure, etc.) during operation, or in the event of an error in the system. Should always be tired, and moreover, there was a problem that caused a bad air conditioner to be shipped due to an error of the sum or a negative judgment due to the accident as described above.

The present invention was conceived in view of the above, and by the microcomputer control, the sum and negative judgment of the performance test for the outdoor unit of the air conditioner is automatically controlled by the microcomputer control, thereby eliminating the determination error due to the visual inspection and increasing the reliability of the test. The purpose of the present invention is to provide a performance inspection system and a control method of an air conditioner outdoor unit and a room air conditioner outdoor unit.

It is another object of the present invention to continuously perform a performance test of a package air conditioner outdoor unit as well as a room air conditioner outdoor unit in one line, and to perform an inspection while varying to an appropriate load according to the capacity of the inspected object. The present invention provides a performance inspection system and a control method of a cooling-only packaged air conditioner outdoor unit and a room air-conditioner outdoor unit that can perform performance tests on all air-conditioning outdoor units regardless of the type or capacity of the outdoor unit.

Another object of the present invention, when the power is turned off due to abnormal operation during operation of the system, for example, a temporary power failure, it detects this and informs the operator and at the same time memorize the data measured until immediately before restarting The present invention provides a performance inspection system and a control method of the air conditioner outdoor unit for cooling and the air conditioner outdoor unit that can accurately check the measurement progress without measuring the progress of the inspection.

1 is a schematic diagram of a performance test system of a typical air conditioner outdoor unit.

2 is a partial perspective view showing a schematic configuration of the air conditioner outdoor unit and the air conditioner outdoor unit performance inspection system exclusively for cooling according to the present invention.

Figure 3 is a schematic diagram showing a test interval for the performance test system of the air conditioner outdoor unit and the air conditioner outdoor package only air conditioner according to the present invention.

Figure 4 is a schematic diagram showing the configuration of the refrigeration cycle and the outdoor unit connection state for the performance test device of the performance test system of the present invention.

5 is a block diagram of a microcomputer of the present invention performance testing system.

FIG. 6 is a control flowchart for the microcomputer shown in FIG. 5; FIG.

7a to 7c is a flow chart for the control method of the present invention dedicated air conditioner package air conditioner outdoor unit and room air conditioner outdoor unit performance inspection system.

8a and 8b is a flow chart for the section-by-section control method of the air conditioner outdoor unit and air conditioner outdoor unit performance inspection system dedicated to cooling.

Explanation of symbols on the main parts of the drawings

10; Air conditioner outdoor unit 11; Conveyor

12; trolley conveyor 13; power rail

15; data transmission position sensor 16; retro position sensor

20; performance inspection device 30; connection piping

40; control unit 41; sensor unit

42; position sensor unit 43; pressure sensor display unit

44; switch section 44-1; start switch

44-3; Inverter 44-4; Capacity selector switch

45; drive display unit 45-1; light emitting diode

45-2; drive IC 46; drive part

46-1; Relay 46-2; Drive IC

47; microcomputer 48; data transmitter

49; oscillation unit 50; power supply unit

100; heat exchanger 111 to 115; heat exchanger

120; high pressure side refrigerant line 130; low pressure side refrigerant line

140; pressure sensor 150 to 154; shutoff valve

160; package air conditioning dedicated refrigerant line 161; room air conditioning dedicated refrigerant line

170; cooling capillary tube 180; shut-off valve

190; Secondary Refrigerant Line 191; Secondary Capillary Tube

An object of the present invention as described above is divided into three working sections of the inspection section, the data transmission section and the inspection end section conveyor for sequentially transporting the air conditioner outdoor unit to be inspected; By measuring the pressure while circulating the refrigerant is connected to the connecting pipe to the air conditioner outdoor unit transported by the conveyor, at least one cooling capable of measuring the pressure while changing to the appropriate load according to the model change or capacity change of the outdoor unit Load variable performance tester; A trolley conveyor for transferring the performance tester at the same speed as that of the air conditioner outdoor unit and a power rail for supplying power in parallel with the trolley conveyor; The pressure and / or error mode measured by the pressure sensor of the performance tester is displayed and the sum and the part are determined based on the measured data. The cooling load of the performance tester is varied according to the model and capacity of the outdoor unit. Controller; A data transmission position sensor installed between an inspection section and a data transmission section of the conveyor; And a reset position sensor installed at the distal end of the work end section, thereby achieving all the inspections and determinations automatically.

Here, the performance testing device is connected to the air conditioner outdoor unit to be inspected to form a closed circulation path high, low pressure side refrigerant line; A heat exchanger installed in the middle of the refrigerant line, the heat exchanger being divided into at least two heat exchangers and connected to and installed in parallel with the refrigerant line; A shutoff valve for selectively blocking a flow path to each of the heat exchangers of the heat exchanger; A refrigerant line dedicated to a room air conditioner and a refrigerant line dedicated to a package air conditioner branched from the high pressure side refrigerant line into two branches and having a path connected immediately before the air conditioner outdoor unit; A valve installed in the refrigerant line dedicated to the room air conditioner to selectively block a flow path; A cooling capillary tube installed in the refrigerant line dedicated to the package air conditioner; And a pressure sensor installed in the low pressure side refrigerant line and measuring a pressure of the refrigerant circulating.

The control device may include a sensor unit receiving a signal from a pressure sensor, a temperature sensor, and a current sensor; A position sensor unit receiving a signal from a data transmission position sensor and a reset position sensor; A pressure sensor display unit for displaying pressure data input from the pressure sensor of the sensor unit; A switch unit receiving a signal from a start switch, an inverter, and a balance selection capacity selection switch; A drive display unit which displays an operation of a corresponding valve according to selection of a capacity selection switch for each balance unit of the switch unit; A driving unit for driving the corresponding valve in accordance with the selection of the capacity selection switch for each balance unit of the switch unit; A microcomputer that analyzes signals input from these sensors and switches, determines and stores sums and portions, and calculates and controls inputs and outputs; A data transmitter for transmitting the data stored in the microcomputer to an external computer; An oscillator for generating a pulse required for driving the microcomputer; And a power supply unit.

According to the present invention, the performance inspection system of the air conditioner outdoor unit and the air conditioner outdoor unit and the room air conditioner outdoor unit is connected to the performance tester to the package air conditioner outdoor unit transported by a conveyor, and the start switch is pressed. At this time, the pressure of the circulating refrigerant is measured to determine the sum or part. The measured pressure data is displayed on the control device and the sum is added automatically by the microcomputer of the control device. When the model and the capacity of the air conditioner outdoor unit are changed, the valves are selectively driven as the selection switches provided in the control device are automatically or manually operated to be changed to appropriate loads, thereby performing the inspection as described above. That is, the present invention can increase the reliability of the inspection because the inspection and determination of all kinds of air conditioner outdoor unit is automatically performed by the microcomputer control, and all the balanced package air conditioner outdoor unit and the room without replacing the inspection device in another line. Since the performance test can be performed on the outdoor unit of the air conditioner, the product quality and productivity can be improved.

In addition, an object of the present invention, the step of inputting information about the air conditioner outdoor unit to be tested; Analyzing the input information on the object under test and setting the load of the performance test apparatus according to the model and capacity and displaying the initial pressure; Storing the inspection and inspection data in the inspection interval; Analyzing the stored test data to check the measured pressure value and the test duration, and displaying a corresponding error mode in case of abnormal results; An abnormal operation detection step of detecting whether a power failure and / or a system error has occurred during the cooling inspection mode to determine and display whether a work is in progress; Analyzing the inspection result to determine a sum or a part and transmitting the stored data; A second abnormal operation detection step of detecting and displaying an abnormal operation in the data transmission step to determine whether the operation is in progress; It is achieved by providing a control method of a dedicated air conditioning outdoor unit and room air conditioner outdoor performance test system, characterized in that it comprises a job termination step of erasing all measured data and waiting to the initial state.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

2 is a partial perspective view showing a schematic configuration of a performance inspection system of a cooling dedicated package air conditioner outdoor unit and a room air conditioner outdoor unit according to the present invention, and FIG. 3 is a perspective view of a cooling exclusive package air conditioner outdoor unit and a room air conditioner outdoor unit according to the present invention. Figure 4 is a schematic diagram showing the working interval for the performance test system, Figure 4 is a schematic diagram showing the configuration of the refrigeration cycle and the outdoor unit connection state for the performance test device of the performance test system of the present invention, Figure 5 is a microcomputer in the microcomputer of the performance test system of the present invention 6 is a control flowchart for the microcomputer shown in FIG. 5.

As shown in the drawing, the air conditioner outdoor unit 10 under test is configured to be transported on the conveyor 11. The performance tester 20 is connected to the air conditioner outdoor unit 10 transferred as described above by the connection pipe 30.

The performance inspection apparatus 20 is installed on the trolley conveyor 12 disposed on the upper portion of the conveyor 11, and is transported at about the same speed as the air conditioner outdoor unit 10. In addition, a power rail 13 for supplying power to the performance testing device 20 is provided adjacent to the trolley conveyor 12 described above.

As shown in FIG. 3, the conveyor 11 is divided into an inspection section 11a, a data transmission section 11c, and a job end section 11d, and the inspection section 11a and the data transmission section. A data transmission position sensor 15 is provided at the boundary of 11c, and a reset position sensor 16 is provided at the end of the work end section 11d. Each of the position sensors is configured to sequentially make contact as the air conditioner outdoor unit 10 moves, and a series of inspection work is performed by sequentially changing the operation mode by the contact of these sensors.

4, the high-pressure side refrigerant line 120 and the low-pressure side refrigerant line 130 are installed at both sides of the heat exchanger 100 so as to be connected to the air conditioner outdoor unit 10. The low pressure side refrigerant line 130 is provided with a pressure sensor 140 for checking the pressure of the refrigerant circulating there.

The heat exchanger 100 is divided into heat exchange parts 111, 112, 113, 114, and 115 of five stages, and the heat exchangers 111, 112, 113, and 114 that are partitioned in this manner are divided into five parts. 115 is connected and installed in parallel with the refrigerant line. The high pressure side refrigerant line connecting portions of the first, third, fourth, and fifth heat exchange parts 111, 113, 114, and 115 have a shutoff valve 150 for selectively blocking the flow of refrigerant through the line. ), 151, 153, and 154 are provided, and the backflow prevention shutoff valve 152 is provided in the low pressure side refrigerant line connection part of the 2nd heat exchange part 112. As shown in FIG.

The high-pressure side refrigerant line 120 is bifurcated at the rear of the shut-off valve 150 and connected to just before the outdoor unit air conditioner 10, that is, two lines, that is, a refrigerant line dedicated to the package air conditioner 160, A refrigerant line 161 dedicated to the room air conditioner is configured.

A cooling capillary tube 170 is installed in the refrigerant line 160 for the package air conditioner, and a shutoff valve 180 for selectively blocking the flow path is installed in the refrigerant line 161 for the room air conditioner. .

In addition, an auxiliary refrigerant line 190 is installed near the installation of the cooling capillary tube 170 of the high-pressure side refrigerant line 120, and the line 190 is an auxiliary capillary tube 191 and a line. The solenoid valve 192 for opening and closing is provided. Here, the solenoid valve 192 is a normal close type that is 'on' operated when an external working condition, such as a change in product capacity, is mainly operated when a change in product capacity acts to act as a cooling capillary tube 170. It serves as an assistant. One or more auxiliary refrigerant lines 190 may be installed, but the number of auxiliary refrigerant lines 190 is not limited thereto.

Meanwhile, in the illustrated example, the heat exchanger is divided into five stages of heat exchangers. However, this is only one embodiment, and the heat exchanger may be divided into two stages, three stages, and four stages of heat exchangers.

Such a performance tester can perform the inspection while varying the cooling load of the heat exchanger to an appropriate load according to the capacity change of the air conditioner outdoor unit. For example, in the case of a small air conditioner outdoor unit, only one heat exchanger is used, In this case, inspection can be performed while circulating the refrigerant using five heat exchangers.

In detail, if the target to be inspected is a package air conditioner outdoor unit, the refrigerant is a capillary tube 170 for cooling through a refrigerant line 160 for package air conditioner of the high-pressure side refrigerant line 120 from the refrigerant line of the air conditioner outdoor unit. A) flows toward the heat exchanger 100 and circulates through the heat exchanger 100 to be recovered to the air conditioner outdoor unit. At this time, the refrigerant line 161 dedicated to the room air conditioner is blocked by the shutoff valve 180.

When the outdoor unit having a very small capacity in the inspection process of the package air conditioner outdoor unit as described above, the refrigerant is circulated through only the second heat exchange unit 112 of the heat exchanger (100). When the capacity of the inspection object is increased during such working conditions, the conventional work was performed by replacing a separate dedicated performance inspection device or changing a line. However, in the present invention, another shutoff valve, for example, the first heat exchange The buoyancy shut-off valve 150 is 'on' operation to increase the capacity of the heat exchanger 100 can proceed as it is. In the same principle, as the capacity of the product is increased or decreased, the inspection can be conveniently performed by adjusting the capacity appropriately while increasing or decreasing the number of uses of each heat exchanger.

On the other hand, during the inspection of the package air conditioner outdoor unit as described above, if the type of the product itself is changed, for example, the room air conditioner outdoor unit, such a working condition is transmitted to the shut-off valve 180, the shut-off valve 180 is 'on' Thus, the room air conditioner line 161 is opened.

Therefore, the refrigerant is circulated from the air conditioner outdoor unit to the path passing through the heat exchanger 100 through the refrigerant line 161 dedicated to the room air conditioner of the high-pressure side refrigerant line. At this time, the refrigerant is going to flow to the package air conditioner refrigerant line 160 at the junction of the package air conditioner refrigerant line 160 and the room air conditioner refrigerant line 161, but the capillary tube installed on the line 160 As a result, only a very small amount flows and there is little effect on the inspection.

In the inspection process of the room air conditioner outdoor unit as described above, as in the case of the package air conditioner outdoor unit, each heat exchange unit is selected as an appropriate number each time the capacity of the product is increased or decreased, so that the operation can be performed according to the capacity of the product to be inspected. have.

On the other hand, when the capacity of the product is slightly changed during the performance test of the package air conditioner outdoor unit, the solenoid valve 192 of the auxiliary refrigerant line 190 is 'on' to operate the auxiliary refrigerant line 190 is opened, the refrigerant is a high pressure It is circulated through the cooling filler tube 161 of the side refrigerant line 120 and the auxiliary capillary tube 191 of the auxiliary refrigerant line 190. Therefore, even if there is a slight change in capacity, it is possible to smoothly perform the performance test on the target air conditioner outdoor unit.

The setting of the working conditions according to the change of the test subject capacity of the performance testing device as described above is automatically controlled by the control device, for example, a plurality of shutoff valves for blocking the refrigerant flow to each heat exchange part of the heat exchanger 100. And solenoid valves are automatically 'on / off' by the microcomputer control of the control unit to perform the inspection.

As shown in FIG. 5, the control device 40 includes a sensor unit 41 receiving signals from a pressure sensor, a temperature sensor, and a current sensor, and a position sensor unit receiving signals from a data transmission position sensor and a reset position sensor. (42), the pressure sensor display unit 43 for displaying the pressure data input from the pressure sensor of the sensor unit 41, the start switch 44-1, the inverter 44-3 and the capacity of each balance band selection Switch unit 44 receiving a signal from the switch 44-4, and the drive display unit for displaying the operation of the corresponding valve in accordance with the selection of the balance selection capacity selector switch 44-4 of the switch unit 44 ( 45), a drive unit 46 for driving the corresponding valve in accordance with the selection of the balance selection capacity selector switch 44-4 of the switch unit 44, and a signal input from these sensors and the switches, The microcomputer 47 for determining and storing, calculating and controlling input and output, And a data transmitter 48 for transmitting data stored in the microcomputer 47 to an external computer, an oscillator 49 for generating pulses required for driving the microcomputer, and a power supply 50.

Herein, the driving display unit 45 includes a plurality of light emitting diodes 45-1 for displaying a shutoff valve, a solenoid valve, a fan driving state, and a warning light state of the performance tester, and the corresponding light emitting diodes 45 under the control of the microcomputer. It consists of the driver IC 45-2 which drives -1).

In addition, the drive unit 46 is a plurality of relays (46-1) for driving the shut-off valve, solenoid valve, fan, output switch and warning lights of the performance testing device, and the corresponding relay 46-1 under the control of the microcomputer It consists of the driver IC 46-2 to drive.

The data transmitter 48 is configured to repeatedly transmit data at least three times.

On the other hand, in the illustrated example, the driving unit automatic control device is shown, it can also be configured as a driving unit passive type that can be operated manually without the driving unit.

In the passive control device of the driving unit as described above, the valves to be operated according to the capacity of the inspected object are displayed by the light emitting diodes of the driving display unit, and the operator can manually operate the valve based on the display state. On the contrary, the automatic drive unit is configured to automatically operate all the valves. The operation of the automatic control unit is described below with reference to FIG. 6.

When the power is 'on', the capacitance selection switch is first detected (S1), the operation display (S2) to the driving display unit, and the driving unit (S3) to match the capacity. Then check whether the start switch is 'on' (S4) and if it is 'on', the performance test starts (S5). If the start switch is 'off', check the state of the start switch again.

When the performance test is started, the data is input from all sensors (S6) and the sum is determined (S7). If it is a good product, the data is transmitted to an external computer (S8).

Hereinafter, a control method of a cooling dedicated package air conditioner outdoor unit and a room air conditioner outdoor unit performance test system according to the present invention having the structure as described above will be described with reference to FIGS. 7A to 8B.

As shown in the figure, the present invention comprises the steps of inputting information about the outdoor unit of the air conditioner to be examined (S10); Analyzing the input information on the object under test and setting the load of the performance test apparatus according to the corresponding model and capacity and displaying initial pressure (S20); Storing the inspection and inspection data in the inspection interval (S30); Analyzing the stored test data to check the measured pressure value and the test duration, and displaying a corresponding error mode in case of abnormal result (S40); Abnormal operation detection step (S50) of detecting whether a power failure and / or system error has occurred during the inspection to determine and display whether the work is in progress; Analyzing the inspection result to determine a sum, a part, and transmitting the stored data (S60); A second abnormal operation detection step S70 of detecting abnormal operation in a data transmission step and determining and displaying whether or not the operation is in progress; A job end step (S80) for erasing all measured data and waiting for the initial state is included.

Looking at this in more detail as follows.

First, when power is applied, the function switches are checked to display corresponding light emitting diodes and pressures according to the information input keys (S10). If a key error occurs at this time, the controller displays the model selection key error mode (EO-6).

In this case, the function switch is checked, for example, in the case of a room air conditioner, the valve V1 is turned on, and in the case of a package air conditioner, the valve is turned off. Same as 1.

emphysema V1 (Product Selection) V2 (nutrient) V3 V4 V5 SV1 FAN Capacity selection RAC 5 pyeong O X X X X X L 7 pyeong O X X X X X L 9 pyeong O X O X X X L 12 pyeong O O O O X X H PAC 12 pyeong X X O X X X H 15 pyeong X X O X X X H 20 pyeong X O O O X X H 25 pyeong X O O O O O H 30 pyeong X O O O O X H

In Table 1, O is open, X is closed, L is low, and H is high.

In addition, the initial state is displayed simultaneously with the check of the switch as described above. The pressure display samples and displays data coming from the pressure sensor for 1 second, and turns on the corresponding LED by combining key inputs (S20). At this time, the fan is 'off' and all relays are 'off'.

After the step, check whether the start switch is 'on' and if it is 'on' stores the inspection and inspection data (S30). At this time, when 'start' of the start switch, the relay is not 'on' at the same time, and 'on' after 30 seconds to prevent noise and starting failure, and the relay 'on' interval is 200ms.

On the other hand, the relay is 'on' in the order of SV1, FAN, 30 seconds delay, start, warning lights, etc., and the relay that does not become the 'on' condition is ignored and moved to the next relay. In this relay 'on' priority, the pressure data is stored from the moment when the start relay is 'on', and the initial value is to store 1 byte of data immediately before starting, and stores it every 3 seconds between 0 and 1 minutes. (20 bytes), and stores between 1 and 2 minutes at 5 second intervals (12 bytes), and stores between 2 and 6 minutes at 10 second intervals (24 bytes). Subsequent data is only displayed and not stored, but waits until the data transmission signal is received after storing. The size of the pressure storage data here is 57 bytes in total.

After storing the test data as described above, the pressure value and the test time are checked based on the stored test data to display the corresponding error mode in case of abnormal results (S40), and at the same time, a power failure and / or a system error occurs during the cooling test. The abnormal operation detection step (S50) of determining whether or not to proceed with the operation by detecting whether the operation is performed is performed.

The pressure value is checked first based on the maximum compressor protection pressure (23Kg / cm ² ). When this pressure is exceeded, the EH-2 error mode is displayed and the system is initialized and waited. Then check whether the measured pressure is within the set pressure range (3.1 to 6.9 Kg / cm ² ). If the measured pressure is less than 3Kg / cm ^2, EC-1 error mode is displayed. Then check if the pressure lasted for more than 3 minutes above 7Kg / cm ^2, and if it persists, display EC-2 error mode, otherwise display EO-5 error mode. Where error mode EC-1 is the refrigerant drain and high pressure valve clogging error mode, EC-2 is the valve clogging, overcharging and set off error modes, and EO-5 is an overload or set off error mode.

In this step, if the inspection time is less than the minimum time required for the cooling inspection, for example, 6 minutes, the test time shortage error mode (EC-4) is displayed.

In the abnormal operation detection step (S50), it is detected whether a power failure occurs during the inspection. When the power is 'off', the system maintains and waits for the measured data.

In the inspection step as described above, the data transmission position sensor is switched to the data transmission section. In this section, the sum of the subjects is determined based on the input data, and the result is transmitted to the external main computer. (S60).

Here, the data transmission position sensor is displayed until the data transmission is completed, and sequentially transmits the pressure data stored in the microcomputer. The transmission is repeated at least three times.

At this time, if the power is 'off', the measured data is maintained and waiting, and when the power failure returns, the operation is performed to recover the refrigerant while maintaining the existing data. This step is the second or more operation detection step (S70).

After the data is transmitted, the operation is terminated by checking whether the start switch is in the 'off' state (S80).

At this time, the relay does not 'off' at the same time, 'off' after about 200ms to prevent noise, and 'off' in the order of start switch, solenoid valve and fan. In the event of an error, the beacon will remain on even after the start switch is 'off', and the pressure display will normally display the data coming from the pressure sensor, and the light emitting diode will remain in its current state.

When the reset switch is detected in this state, the system erases all data and waits for the initial state.

In the operation termination step (S80) as described above, the system checks whether the power is 'off' at this stage, and if it is off, the system maintains the measured data and waits, and restarts the system when the power failure returns (S90).

If abnormal operation is made during the inspection process as described above, it is displayed to the outside as an error mode and a warning light is operated to inform an operator. In addition, according to the position of each section when the power 'off' and power failure return, the inspection work is performed in the flow as shown in the following Table 2.

Item Main switch (start switch) Error judgment 1 section 2 sections 3 sections Start of recovery operation after neglect failure OFF state I'm end end end after end end end Power failure reset (off → on) I'm All Do La, ah after All Bar, sa La, ah In case of power failure (on → off) I'm end I I after end I I

In Table 2, a ~ a means each of the following.

A: Erases the existing data and waits for the initial state.

B: Wait while keeping only the measured data at the current position.

C: Restart the system.

D: Keep existing data and only run cooling operation (data is already stored and not saved, only run for refrigerant recovery).

E: Before error determination → Perform cooling test again in cooling operation mode.

Bar: After error determination → Since error has already occurred, display error and retry cooling test in cooling operation mode.

Note: In the case of heating type → heating data measured in section 1 is valid because the measurement is completed.

H: If the data is off in the data transmission section, the data immediately before the off is used. If the number of data transmissions is not more than three times, the data is retransmitted.

As described above, in the control method of the air conditioner outdoor unit and the air conditioner outdoor unit performance inspection system exclusively according to the present invention, all inspections and determinations are automatically performed by the microcomputer, and when the abnormal operation is displayed to the outside as an error mode. Zoom in and operate the warning light at the same time. This allows the operator to quickly take action on system errors and to accurately check the measured data without having to worry about the task. During the power failure during the test, the measured data up to this point is memorized, and when the power failure returns, the continuous test work is performed from this point, so more accurate test work can be expected.

As described above, according to the performance inspection system and the control method of the air conditioner outdoor unit and the room air conditioner outdoor unit of the present invention, all inspections and determinations are automatically performed by the microcomputer, so that human error can be avoided. It is possible to increase the reliability of the inspection. In addition, it is possible to accurately check the progress of the air conditioner's performance inspection by measuring the data without the operator having to worry about it.

In addition, the present invention can be inspected while changing the refrigerant circulation path according to the type of air conditioner outdoor unit while performing the performance test for the package air conditioner outdoor unit and the room air conditioner outdoor unit, and also reverse the circulation direction of the refrigerant according to the cooling mode and the heating mode.

In addition, the present invention can perform the performance test by adjusting the capacity of the heat exchanger according to the size of the air conditioner outdoor unit to be inspected, for example, water and capacity, that is, a shut-off valve installed on the high pressure side or low pressure side of each heat exchanger constituting the heat exchanger By performing automatic or manual adjustment, the performance test can be performed while adjusting the capacity of the heat exchanger according to the capacity of the inspected object.

Therefore, it is possible to carry out basic performance inspection of package air conditioner outdoor unit of several specifications in one line, which is easy and easy to set up the manufacturing line, so it can be used very advantageously in the small quantity production system of various types, The quality can be improved.

In the above described and described with reference to a preferred embodiment for implementing the performance inspection system and the control method of the air conditioner outdoor unit and room air conditioner outdoor dedicated only according to the present invention, the present invention is not limited to the above embodiment, Various modifications can be made by those skilled in the art to which the invention pertains without departing from the spirit of the invention as claimed in the following claims.

Claims (22)

A conveyor which is divided into three working sections, an inspection section, a data transmission section, and an inspection end section, and sequentially transfers the air conditioner outdoor unit to be inspected; By measuring the pressure while circulating the refrigerant is connected to the connecting pipe to the air conditioner outdoor unit transported by the conveyor, at least one cooling capable of measuring the pressure while changing to the appropriate load according to the model change or capacity change of the outdoor unit Load variable performance tester; A trolley conveyor for transferring the performance tester at the same speed as that of the air conditioner outdoor unit and a power rail for supplying power in parallel with the trolley conveyor; The pressure and / or error mode measured by the pressure sensor of the performance tester is displayed and the sum and the part are determined based on the measured data. The cooling load of the performance tester is varied according to the model and capacity of the outdoor unit. Controller; A data transmission position sensor installed between an inspection section and a data transmission section of the conveyor; And Performance inspection system of the air conditioner outdoor unit and the air conditioner outdoor unit for exclusive use of the air conditioner package, characterized in that all inspection and determination is automatically performed, including a reset position sensor installed at the end of the work end section. The system of claim 1, further comprising a warning light for alarming an error or a defective product. According to claim 2, The performance testing device is connected to the air conditioner outdoor unit to be inspected to form a closed circulation path high, low pressure side refrigerant line; A heat exchanger installed in the middle of the refrigerant line, the heat exchanger being divided into at least two heat exchangers and connected to and installed in parallel with the refrigerant line; A shutoff valve for selectively blocking a flow path to each of the heat exchangers of the heat exchanger; A refrigerant line dedicated to a room air conditioner and a refrigerant line dedicated to a package air conditioner branched from the high pressure side refrigerant line into two branches and having a path connected immediately before the air conditioner outdoor unit; A valve installed in the refrigerant line dedicated to the room air conditioner to selectively block a flow path; A cooling capillary tube installed in the refrigerant line dedicated to the package air conditioner; And a pressure sensor installed in the low-pressure side refrigerant line and measuring a pressure of the refrigerant circulating in the cooling-only package air conditioner outdoor unit and the room air conditioner outdoor unit. 4. The heat exchanger of claim 3, wherein the heat exchanger is divided into two stages of the first heat exchange part and the second heat exchange part and connected in parallel to the refrigerant line, and selectively flows the refrigerant through the line to the high pressure side refrigerant line connection part of the first heat exchange part. Cooling-only package air conditioner outdoor unit and room air conditioner outdoor unit performance inspection system, characterized in that the shut-off valve is installed. 4. The heat exchanger of claim 3, wherein the heat exchanger is divided into three stages of the first heat exchanger, the second heat exchanger, and the third heat exchanger, and connected in parallel to the refrigerant line, and the high pressure side refrigerant line connection part of the first heat exchanger and the third heat exchanger is connected. Shut-off valves for selectively blocking the flow of refrigerant through this line, respectively, and the low pressure side refrigerant line connection portion of the third heat exchanger is provided with a backflow prevention shutoff valve is installed, the air conditioner outdoor unit and room air conditioner Performance inspection system. 4. The heat exchanger of claim 3, wherein the heat exchanger is partitioned into four stages of the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger, and connected in parallel to the refrigerant line, wherein the first heat exchanger, the third heat exchanger, and Shut-off valves for selectively blocking the flow of refrigerant through the line are respectively installed in the high-pressure side refrigerant line connection portion of the fourth heat exchanger, and a backflow prevention shutoff valve is installed in the low-pressure side refrigerant line connection portion of the third heat exchanger. Air conditioning outdoor unit and air conditioning outdoor unit to check the performance of the air conditioner outdoor unit. 4. The heat exchanger of claim 3, wherein the heat exchanger is partitioned into five stages of the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, and the fifth heat exchanger, and connected in parallel to the refrigerant line. Shut-off valves for selectively blocking the flow of refrigerant through the line are respectively provided at the high pressure side refrigerant line connection portions of the third heat exchange portion, the fourth heat exchange portion, and the fifth heat exchange portion, and a reverse flow is connected to the low pressure side refrigerant line connection portions of the third heat exchange portion. Performance inspection system of the air-conditioner outdoor unit and room air conditioner outdoor unit dedicated to cooling, characterized in that the prevention shut-off valve is installed. The method according to any one of claims 4 to 7, wherein at least one auxiliary refrigerant line is installed in parallel near the installation of the cooling capillary tube of the refrigerant line dedicated to the package air conditioner branched from the high-pressure side refrigerant line. An auxiliary capillary tube and a line solenoid valve for opening and closing the line are installed in a line to assist the action of the cooling capillary tube in response to a change in the volume of the inspected object. Performance inspection system. The apparatus of claim 2, wherein the control device comprises: a sensor unit receiving a signal from a pressure sensor, a temperature sensor, and a current sensor; A position sensor unit receiving a signal from a data transmission position sensor and a reset position sensor; A pressure sensor display unit for displaying pressure data input from the pressure sensor of the sensor unit; A switch unit receiving a signal from a start switch, an inverter, and a balance selection capacity selection switch; A drive display unit which displays an operation of a corresponding valve according to selection of a capacity selection switch for each balance unit of the switch unit; A driving unit for driving the corresponding valve in accordance with the selection of the capacity selection switch for each balance unit of the switch unit; A microcomputer that analyzes signals input from these sensors and switches, determines and stores sums and portions, and calculates and controls inputs and outputs; A data transmitter for transmitting the data stored in the microcomputer to an external computer; An oscillator for generating a pulse required for driving the microcomputer; And a power supply unit. The performance inspection system of the air conditioner outdoor unit and the air conditioner outdoor unit for exclusive use of cooling. 10. The display device of claim 9, wherein the driving display unit comprises a plurality of light emitting diodes for displaying a shut-off valve, a solenoid valve, a fan driving state, and a warning light state of a performance testing device, and a driver IC for driving the corresponding light emitting diodes under the control of a microcomputer. The air conditioning outdoor unit and the air conditioner outdoor unit performance inspection system characterized in that the air conditioner. 10. The system of claim 9, wherein the data transmitter is configured to repeatedly transmit data at least three times. 10. The apparatus of claim 9, wherein the driving unit comprises a plurality of relays for driving a shutoff valve, a solenoid valve, a fan, an output switch, and a warning lamp of a performance tester, and a driver IC for driving the corresponding relays under the control of a microcomputer. Air conditioning outdoor unit and air conditioning outdoor unit to check the performance of the air conditioner outdoor unit. (a) inputting information about an outdoor unit of the air conditioner to be inspected; (b) analyzing the input information on the object under test and setting the load of the performance test apparatus according to the corresponding model and capacity and displaying the initial pressure; (c) storing the inspection and inspection data in the inspection interval; (d) analyzing the stored test data to check the measured pressure value and the test duration, and displaying a corresponding error mode in case of abnormal result; (e) an abnormal operation detection step of detecting whether a power failure and / or system error has occurred in the inspection step to determine and display whether the work is in progress; (f) analyzing the inspection result to determine the sum or absence and transmitting the stored data; (g) a second abnormal operation detection step of detecting and displaying an abnormal operation in the data transmission step to determine whether the operation is in progress; (h) a control method of a cooling dedicated package air conditioner outdoor unit and a room air conditioner outdoor unit performance inspection system, comprising a step of terminating a job to erase all measured data and to wait for an initial state. 14. The cooling-only package according to claim 13, wherein after inputting information on the object under test in step (a), a key error is detected and a model selection key error mode (EO-6) is displayed in the case of a key error. Control method of air conditioner outdoor unit and room air conditioner outdoor unit performance test system. The method of claim 13, wherein in the step (c), data storage is performed by using 1 byte as an initial value, every 3 seconds between 0 and 1 minutes, every 5 seconds between 1 and 2 minutes, and every 10 seconds between 2 and 6 minutes. The control method of the air conditioning outdoor unit and room air conditioner outdoor unit performance inspection system, characterized in that the storage at intervals, the size of the maximum 57 bytes. 15. The method of claim 13, wherein in step (d), the pressure value is checked on the basis of the initial maximum compressor protection pressure, and secondly, within the set pressure range, an EH-2 error when the compressor protection pressure is exceeded. The air conditioner outdoor unit and the room air conditioner for displaying the mode and initializing the system, and when the pressure is out of the set pressure, displays the corresponding error mode among the error modes of the EC-1, EC-2, or EO-5. Control method of outdoor unit performance test system. The method according to claim 16, wherein when the measured pressure value is out of the set pressure, the EC-1 error mode is displayed when the pressure value is 3 Kg / cm ² or less, and it is checked whether it lasted for more than 3 minutes or more. 2. The control method of the air-conditioning outdoor unit and room air conditioner outdoor unit performance inspection system for a cooling only package, characterized in that an error mode is displayed, otherwise E0-5 error mode is displayed. The air conditioner-only package air conditioner of claim 13, wherein, in the step (d), if the inspection time is less than or equal to the minimum time required for the cooling inspection, the test time shortage error mode (EC-4) is displayed. Control method of outdoor unit and room air conditioner outdoor unit performance test system. The control method according to claim 13, wherein the step (e) comprises the step of erasing data measured immediately before the power 'off' is detected and initializing the system. 14. The control method according to claim 13, wherein the data transmission in step (f) is repeated at least three times. The air conditioner-only package air conditioner of claim 13, wherein the step (g) maintains the measured data at the current position when the power is 'off' and then operates to recover the refrigerant when the power is 'on'. Control method of outdoor unit and room air conditioner outdoor unit performance test system. 15. The method of claim 13, wherein the step (k) checks whether the start switch is 'off' and erases all data when it is 'off', and maintains only the measured data at the current position when the power is 'off' in the process. The control method of the air-conditioning outdoor unit and room air conditioner performance inspection system dedicated to cooling, characterized in that only when the power is 'on' standby to go back to the first test mode.