KR100247743B1 - Performance test equipment for outdoor unit of air conditioner - Google Patents

Abstract

The present invention can not only perform the performance test for all balanced air-conditioning outdoor unit outdoor unit, but also the performance test system and control method of the air-conditioner outdoor unit and room air conditioner outdoor unit that can be tested and determined automatically. To provide. The present invention provides a conveyor for transporting an outdoor unit of an air conditioner under test; At least one cooling and heating load variable performance tester capable of changing the load according to the model change or the capacity change of the outdoor unit by measuring the pressure while circulating the refrigerant connected to the connecting pipe to the air conditioner outdoor unit transported by the conveyor Wow; 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 power supply installed in parallel with the trolley conveyor; The pressure measured by the pressure sensor of the performance tester is displayed on the outside and the sum and the part are determined and transmitted to the external main computer based on the pressure value, the temperature value and the current value. A control device for changing the load of the performance testing device according to the model change and the capacity change of the outdoor unit; It includes a cooling switching position sensor, a data transmission position sensor and a reset position sensor installed between the inspection section of the conveyor for switching the operation mode to the inspection section.

Description

Air-conditioning outdoor unit and room air conditioner outdoor unit performance test system and control method

The present invention relates to a test system for determining the sum and part by performing a basic performance test for the assembled air conditioner outdoor unit, and in particular, the air conditioner outdoor unit of the combined air-conditioning and heating of all balanced while varying the load according to the type or capacity of the air conditioner outdoor unit and The present invention relates to a performance inspection system and a control method of a package air-conditioner outdoor unit and a room air-conditioner outdoor unit which can not only perform a performance check on a room air conditioner outdoor unit but also automatically perform inspection and determination.

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. Performance test on the outdoor unit of the air conditioner connects the performance tester to the product transported on the conveyor and operates for a certain period of time, so that the refrigerant in the air conditioner circulates through the performance tester. Determine the final sum or absence of If the pressure indicated by the pressure gauge is within the setting range, it is determined to pass.

A typical example of the inspection system used for the performance inspection 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.

The air conditioner outdoor unit 1 is configured to sequentially move on a conveyor (not shown), and the performance test device 2 is suspended from a trolley conveyor (not shown) installed at an upper portion of the conveyor. It is supposed to move at the same speed. 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).

In the performance test system of a general air conditioner outdoor unit configured as described above, when the start switch is operated, the outdoor unit of the air conditioner is started, and the refrigerant in the outdoor unit is circulated through the performance test device through the connection pipe, and the pressure of the refrigerant circulated in this way This pressure gauge will appear, and the inspector will see the pressure that appears in the pressure gauge after a certain time to determine the sum or part.

However, since the performance test system of a general air conditioner outdoor unit as described above is a visual inspection system that attaches an analog pressure gauge to a performance tester and determines the sum or part by reading a scale of the pressure gauge, as can be seen from the drawings and the description thereof. As a result, errors are often caused and their accuracy is poor, which is problematic in terms of reliability of inspection.

In addition, the conventional performance inspection system is configured to inspect only one model and capacity determined in structure, and should be inspected while varying to an appropriate load according to the capacity change of the outdoor unit of the air conditioner. Otherwise, the reliability of the inspection is reduced and the work is cumbersome. There was a problem.

For example, conventionally, in performing the performance test of the air conditioner outdoor unit, it has a performance tester for the package air conditioner, a performance tester for the room air conditioner, and a plurality of performance test devices having a capacity for each balance. Whenever they changed, they were working on changing the performance tester suitable for this, or they were working on different assembly lines. Therefore, deterioration of the quality due to reduced reliability of the inspection as well as decrease in productivity was 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.

Accordingly, an object of the present invention is to use a combined cooling and heating package that can eliminate the determination error caused by visual inspection and increase the reliability of inspection by automatically performing the sum and negative judgment of the performance inspection of the air conditioner outdoor unit by the microcomputer control. The present invention provides a performance test system and a control method of an air conditioner outdoor unit and a room air conditioner outdoor unit.

In addition, another object of the present invention, it is possible to continuously perform the performance test of the package air conditioner outdoor unit as well as the room air conditioner outdoor unit in one line, and the inspection can be performed while varying to the appropriate load according to the capacity of the inspected object, assembly The present invention provides a performance test system and a control method for a combined air-conditioner outdoor unit and a room air-conditioner outdoor unit that can perform a performance test on all air-conditioner outdoor units regardless of the type or capacity of the air conditioner outdoor unit.

In addition, another object of the present invention, if the abnormal operation during the operation of the system or the test object is turned off, it detects this to inform the operator and at the same time can be accurately confirmed as measured data without the operator being tired The present invention provides an air conditioner outdoor unit and a room air conditioner outdoor system and a control method thereof.

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

Figure 2 is a partial perspective view showing a schematic configuration of the air-conditioning outdoor unit and room air conditioner outdoor unit performance inspection system for a combined cooling and heating according to the present invention.

Figure 3 is a schematic diagram showing the inspection interval of the air-conditioning outdoor unit and room air conditioner outdoor unit performance inspection system combined cooling and heating 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 system of the performance test system according to the present invention.

5 is a micom configuration diagram of a performance test system according to the present invention.

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 air-conditioner outdoor unit and room air conditioner outdoor unit performance inspection system for a combined cooling and heating according to the present invention.

8a and 8b is a flow chart for the section-by-section performance test of the air conditioner outdoor unit and room air conditioner outdoor unit performance test system combined cooling and heating according to the present invention.

Explanation of symbols on the main parts of the drawings

10; Air conditioner outdoor unit 11; conveyor

12; Trolley conveyor 13; Power rail

14; Cooling switching position sensor 15; Data transmission position sensor

16; Reset position sensor 20; Performance tester

30; Connecting pipe 40; Controller

41; Sensor unit 42; Position sensor

43; Pressure sensor display section 44; Switch

44-1; Start switch 44-2; Cooling and Heating Selector Switch

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

45; Driving indicator 45-1; Light emitting diode

45-2; Drive IC 46; Driving part

46-1; Relay 46-2; Drive IC

47; Micom 48; Data transmitter

49; Oscillation part 50; Power supply

100; Heat exchangers 111-115; Heat exchanger

120; High pressure side refrigerant line 130; Low Pressure Refrigerant Line

140; Pressure sensors 150 to 154; Shut-off valve

160; Package air conditioning dedicated refrigerant line

161; Cooling capillary tube 162; Capillary Tube for Heating

170; Refrigerant line 171 for the room air conditioner; Shut-off valve

180; Cooling dedicated refrigerant line 181; Check valve

190; Auxiliary refrigerant line 191; Secondary capillary tube

192; Solenoid valve 195; Bypass Line

196; Capillary tube 197 for bypass; Solenoid valve

An object of the present invention as described above, the conveyor is divided into a heating inspection section, a cooling inspection section, a data transmission section and the inspection end section by transferring the air conditioner outdoor unit to be inspected; At least one cooling and heating load variable performance tester capable of changing the load according to the model change or the capacity change of the outdoor unit by measuring the pressure while circulating the refrigerant connected to the connecting pipe to the air conditioner outdoor unit transported by the conveyor Wow; 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 power supply installed in parallel with the trolley conveyor; The pressure measured by the pressure sensor of the performance tester is displayed on the outside and the sum and the part are determined and transmitted to the external main computer based on the pressure value, the temperature value and the current value. A control device for changing the load of the performance testing device according to the model change and the capacity change of the outdoor unit; Cooling / heating combined air conditioner outdoor unit and room air conditioner, including a cooling switching position sensor installed between the inspection sections of the conveyor to switch the working mode to the inspection section, and a data transmission position sensor and a reset position sensor. This is achieved by providing a performance test system of the outdoor unit.

Here, the performance testing device is connected to the outdoor unit of the air conditioner under test, the high, low pressure side refrigerant line to form a closed circulation path; 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 flow paths to the heat exchange parts of the heat exchanger; A refrigerant line dedicated to a room air conditioner and a refrigerant line dedicated to a package air conditioner, which branch into two branches from the high-pressure side refrigerant line and have 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 the flow path; A cooling capillary tube for cooling and a heating capillary tube connected to and installed in series on the refrigerant line dedicated to the package air conditioner; A cooling dedicated refrigerant line installed to connect the cooling capillary tube and the high pressure side refrigerant line to form a refrigerant flow path in a cooling mode operation; A check valve installed in the cooling dedicated refrigerant line to prevent backflow of the refrigerant during a heating mode operation; And a pressure sensor installed in the low pressure side refrigerant line and checking a pressure of the circulating refrigerant.

The control device includes a sensor unit which receives a signal from a pressure sensor, a temperature sensor and a current sensor; A position sensor unit receiving a signal from a cooling switching position sensor, a data transmitting position sensor, and a reset position sensor; A pressure sensor display unit displaying pressure data input from the pressure sensor of the sensor unit; A switch unit receiving a signal from a start switch, a cooling / heating selection switch, an inverter, and a balance selection capacity selection switch; A drive display unit for displaying a drive of a corresponding valve according to selection of a capacity selection switch for each balance unit of the switch unit; A driving unit for automatically driving a corresponding valve according to selection of a capacity selection switch for each balance unit of the switch unit; A microcomputer that analyzes signals inputted from these sensors and switches, determines and stores sums, 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.

In addition, an object of the present invention, (a) using the external input device for inputting the information about the subject; (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 an initial pressure; (c) storing heating test data in the heating section; (d) checking the pressure value and the inspection time based on the stored heating test data and displaying a corresponding error mode in case of abnormal result; (e) detecting a power 'on / off' state during the heating test; (f) storing cooling test data in the cooling section; (g) checking the pressure value and the test duration based on the stored cooling test data and displaying a corresponding error mode in case of abnormal results; (h) detecting a power 'on / off' state during the cooling test; (i) analyzing the inspection result to determine the sum or absence and transmitting the stored data; (j) detecting a power 'on / off' state during data transmission; And (k) is achieved by providing a control method of the air-conditioning outdoor unit and room air conditioner outdoor unit performance test system for a combined air-conditioning and heating, characterized in that the step of erasing all data.

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

2 is a partial perspective view showing a schematic configuration of the performance test system of the air conditioner outdoor unit and room air conditioner outdoor unit and the room air conditioner outdoor unit according to the present invention, and FIG. Figure 4 is a schematic diagram showing the inspection interval of the room air conditioner outdoor unit 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 system of the performance test system of the present invention, Figure 5 is a view of the performance test system of the present invention It is a micom block diagram, and FIG. 6 is a control flowchart for the microcomputer shown in FIG.

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 a heating inspection section 11a, a cooling inspection section 11b, a data transmission section 11c, and a work end section 11d. The cooling switching position sensor 14 is provided at the boundary between the inspection section 11a and the cooling inspection section 11b, and the data transmission position sensor 15 is located at the boundary between the cooling inspection section 11b and the data transmission section 11c. Is provided, and a reset position sensor 16 is provided at the end of the work end section 11d. Each of these position sensors is configured to be sequentially sensed by moving the air conditioner outdoor unit 10.

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. 115 is connected and installed in parallel with the refrigerant line. A high pressure side refrigerant line connection part of the first, third, fourth and fifth heat exchange parts 111, 113, 114, and 115 has a shutoff valve 150 for selectively blocking the flow of refrigerant through the line. 151, 153, and 154 are provided, and another shutoff valve 152 is provided at the low pressure side refrigerant line connection part of the second heat exchange part 112.

The high-pressure side refrigerant line 120 is bifurcated at the rear of the shut-off valve 150 and is connected in front of the outdoor unit air conditioner 10 so that the two lines, that is, the refrigerant line 160 dedicated to the package air conditioner and the room A refrigerant line 170 for air conditioners is configured.

A cooling capillary tube 161 and a heating capillary tube 162 are connected and installed in series in the package air conditioner refrigerant line 160, and the flow path is provided in the room air conditioner refrigerant line 170. Shut-off valve 171 for selectively blocking is provided.

In addition, a cooling dedicated refrigerant line 180 is installed between the cooling capillary tube 161 and the high-pressure side refrigerant line 120 to form a refrigerant flow path in the cooling mode operation. In 180, the reverse flow of the refrigerant during the heating mode operation, specifically, the refrigerant passing through the heat exchanger 100 during the heating mode operation does not directly flow to the cooling capillary tube 161 through the cooling dedicated refrigerant line. The check valve 181 is provided. Therefore, the refrigerant that has passed through the heat exchanger in the heating mode operation necessarily passes through the heating capillary tube 162 and then flows through the cooling capillary tube 161.

In addition, an auxiliary refrigerant line 190 is installed near the cooling capillary tube 161 of the high-pressure side refrigerant line 120, and the line 190 is connected to the auxiliary capillary tube 191 and the line opening and closing. Solenoid valve 192 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 161. 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.

In addition, the present invention is to allow the at least one bypass line 195 for directly bypassing the refrigerant when the overheating of the product set in the heating mode operation directly connects the high-pressure side refrigerant line 120 and the low-pressure side refrigerant line 130. The bypass line 195 is provided with a bypass capillary tube 196 and a line opening / closing solenoid valve 197.

On the other hand, in the illustrated example, but the heat exchanger is divided into five stages of heat exchanger, but this is only one embodiment, it may be configured to divide into two stages, three stages and four stages of heat exchanger.

Such a performance tester can perform the inspection while varying the heating and cooling load of the heat exchanger to an appropriate load according to the change of the capacity 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.

Specifically, the object to be inspected is a package air conditioner outdoor unit and in the case of a cooling test, the refrigerant is a cooling capillary for cooling through the refrigerant line 160 dedicated to the package air conditioner of the high-pressure side refrigerant line 120 from the refrigerant line of the air conditioner outdoor unit. It flows along the tube 161 and the cooling only refrigerant line 180 to the heat exchanger 100 and circulates through the heat exchanger 100 to the air conditioner outdoor unit. At this time, the refrigerant line 170 dedicated to the room air conditioner is blocked by the valve 171.

In the inspection process of the package air conditioner outdoor unit as described above, when the outdoor unit has a very small capacity, the refrigerant circulates through only the second heat exchanger 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, a first heat exchanger, is used. 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.

Next, in the case of the package air conditioner outdoor unit which is switched to the heating mode, the refrigerant circulates in the opposite direction to the case of the cooling, where the refrigerant coming out of the low pressure side refrigerant line 130 passes through the heat exchanger 100 and the package air conditioner. The capillary tube 162 for heating of the dedicated refrigerant line 160 and the capillary tube 161 for cooling are recovered to the outdoor unit. At this time, as the heat exchanger is selectively used according to the capacity change of the inspected object, it is possible to perform a performance test on the heating mode outdoor unit without difficulty.

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 171, the shut-off valve 171 is 'on' Line 170 is opened.

Therefore, the refrigerant is circulated from the air conditioner outdoor unit through the heat exchanger 100 through the refrigerant line 170 dedicated to the room air conditioner of the high-pressure side refrigerant line. At this time, refrigerant flows to the package air conditioner refrigerant line 160 at the branch point of the package air conditioner refrigerant line 160 and the room air conditioner refrigerant line 170, 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 may be selected according to the appropriate number of products each time the capacity of the product is increased or decreased. .

On the other hand, when the capacity of the product is changed during the performance test of the package air conditioner outdoor unit, the auxiliary refrigerant line 190 is opened while the solenoid valve 192 of the auxiliary refrigerant line 190 is 'on', and the refrigerant is a refrigerant line ( It is circulated through the cooling filler tube 161 for cooling 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.

When the overheating phenomenon occurs in the product set during the operation in the heating mode operation, the solenoid valve 197 of the bypass line 195 is 'on' and immediately opens the bypass line 195 by the occurrence of such a phenomenon. The refrigerant is bypassed. This flow rate control prevents overheating of each component of the product.

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 signals from a sensor unit 41 receiving signals from a pressure sensor, a temperature sensor, and a current sensor, a cooling switching position sensor, a data transmission position sensor, and a reset position sensor. Position sensor unit 42 receiving the pressure, 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, cooling and heating selection switch ( 44-2), the switch unit 44 which receives a signal from the inverter 44-3 and the balance unit capacity selection switch 44-4, and the balance unit capacity selection switch 44-4 of the switch unit 44; A driving display unit 45 for displaying the driving of the corresponding valve according to selection of the drive unit, and a driving unit for automatically driving the corresponding valve according to the selection of the capacity selection switch 44-4 for each balance band of the switch unit 44 ( 46) and the signals input from these sensors and switches are analyzed to determine the sum, part and low. In addition, a microcomputer 47 for calculating and controlling input and output, a data transmitter 48 for transmitting data stored in the microcomputer 47 to an external computer, and an oscillator 49 for generating pulses required to drive the microcomputer. ) And a power supply unit 50.

Here, 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 drive IC 45-2 which drives -1).

In addition, the driving unit 46 includes a plurality of relays 46-1 for driving a shutoff valve, a solenoid valve, a fan, an output switch, a four-way switching valve, and a warning lamp of a performance tester, and a corresponding relay ( It consists of the drive IC 46-2 which drives the 46-1.

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, with reference to FIGS. 7a to 7c and 8a and 8b attached to the control method of the air conditioner outdoor unit and room air conditioner outdoor unit performance inspection system according to the present invention having the structure as described above.

As shown in the figure, the control method of the air-conditioner outdoor unit and room air conditioner outdoor unit performance test system according to the present invention, when the power is first applied to check the function switches to display the corresponding light emitting diode and pressure (S10). ). If a key error occurs at this time, the controller displays the model selection key error mode (EO-6).

Here, the check of the function switch, for example, to turn on the valve V1 in the case of the room air conditioner, and to "off" in the case of the package air conditioner, the operation of the valve according to each equilibrium (test subject) is shown in Table 1 Same as

Key, light emitting diode, relay correlation table (O: open, X: closed) emphysema V1 (Product Selection) V2 (nutrient) V3 V4 V5 SV1 SV2 FAN Capacity selection RAC 5 pyeong O X X X X X O L 7 pyeong O X X X X X X L 9 pyeong O X O X X X O L 12 pyeong O O O O X X O H PAC 12 pyeong X X O X X X O H 15 pyeong X X O X X X O H 20 pyeong X O O O X X O H 25 pyeong X O O O O O X H 30 pyeong X O O O O X X H

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 combines key input to light up the corresponding light emitting diode. At this time, the fan is 'off' and all relays are 'off'.

After the step, it is checked whether the start switch is 'on' and if it is 'on', heating operation and heating test data are stored (S20). 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, SV2, FAN, 4WAY, 30 seconds delay, start, beacon, etc., and the relay which does not become 'on' condition is ignored and proceeds to the next relay. In this relay 'on' priority, the pressure data is stored from the moment the start relay is 'on', and the initial value is to store 1 byte of data immediately before starting. (20 bytes), and stores 1 minute to 2 minutes at 5 second intervals (12 bytes), and stores 2 minutes to 6 minutes at 10 second intervals (24 bytes). Subsequent data is only displayed and not stored. After saving, the 4-way valve waits for a changeover signal. Here, the size of the pressure storage data when heating is 57 bytes in total.

After storing the heating test data as described above, it checks the pressure value and inspection time based on the stored heating test data, displays the corresponding error mode in case of abnormal result and detects whether the power is 'off' during the heating test ( S30).

Here, in the check of the pressure value is checked within a 1 is the maximum compressor pressure protection (23Kg / cm ^2), based on the check, and the two drive pressure range (9.5~22Kg / cm ²⁾ drive, than the compressor protection pressure In this case, the EH-2 error mode is displayed and the system is initialized. If the pressure is below the set pressure, the EH-1 or EH-3 error mode is displayed. When the measured pressure value is less than or equal to the set pressure, it is checked whether the pressure value is in the range of 7 to 9.4 Kg / cm ² , and if it is this range, the EH-1 error mode is displayed, and if it is below, the EH-3 error mode is displayed. The error mode EH-1 described above represents refrigerant leakage and valve clogging, EH-2 represents valve clogging and overcharging, and EH-3 represents four-way valve malfunction. Thus, the operator can see the error mode as described above and take appropriate action quickly.

In this step, if the inspection time is less than the minimum time required for the heating inspection, for example, 2 minutes, the test time shortage error mode (EH-4) is displayed.

In addition, when the power is 'off' during the test in the heating test section, the system immediately erases the measured data and immediately waits.

When the heating test is finished by the progress of the steps as described above, then the cooling test is performed, which is switched to the cooling inspection section by the cooling switching position sensor installed on one side of the conveyor 'on'.

By the 'on' operation of the cooling switching position sensor, the system reaches the conditions necessary for the cooling inspection, and stores the cooling operation and cooling test data (S40).

Here, when the cooling switching position sensor is 'on' operation, the position sensor is displayed for 1 second. The heating final pressure data is stored in 1 byte and the 4-way valve relay is 'off'.

Cooling test pressure data is stored from the moment the 4-way valve relay is 'off', stored every 3 seconds (20 bytes) between 0 and 1 minute, and every 5 seconds between 1 minute and 2 minutes (12 Bytes), and are stored (24 bytes) at intervals of 10 seconds between 2 and 6 minutes. Subsequent data is only displayed and not stored, but waits until a data transmission signal is received. When stored, the size of the pressure stored data is 57 bytes in total.

After storing the cooling test data as described above, it checks the pressure value and inspection time based on the stored cooling test data, displays the corresponding error mode in case of abnormal result and detects whether the power is 'off' during the heating test ( S50).

Here, the pressure value is checked first based on the maximum compressor protection pressure (23Kg / cm ² ), and when the pressure is exceeded, the EH-2 error mode is displayed and the system is initialized and waited. Then, check if an error has occurred in the previous step (heating inspection section), and if an error occurs, erase the data and wait for the initial state. If no error occurs, the measured pressure is set within the set pressure range (3.1 to 6.9Kg). / 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. The above error mode EC-1 is a refrigerant drainage and high pressure valve clogging error mode, EC-2 is a valve clogging, overcharging, four-way valve operation failure and set-off error mode, EO-5 is an overload or set-off error mode to be.

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 addition, when the power is 'off' during the test in the cooling test section, the system maintains the measured data and waits. When the power failure returns, check whether it is before error determination, and if it is before, perform the cooling test again. If after, display the error mode and perform the cooling test again.

In the cooling test step as described above, the data transmission position sensor is detected to switch to the data transmission section. In this section, the sum of the subjects is determined based on the input data, and the result is transferred to the external main computer. Transmit (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 kept waiting and the cooling operation is performed to recover the refrigerant while maintaining the existing data when the power failure returns.

After the data is transmitted, the operation is terminated by checking whether the start switch is in an 'off' state (S70).

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, 4-way valve, first solenoid valve, second 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 (S70) as described above, the system checks whether the power is 'off' at this stage, if it is off, maintains the measured data and waits, and restarts the system when the power failure returns.

If abnormal operation is made in the inspection section as described above, it is displayed to the outside as an error mode and a warning light is operated to inform the 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.

Interval start switch correlation table Item Main switch (start switch) Error judgment 1 section 2 sections 3 sections 4 sections Start of recovery operation after neglect failure OFF state I'm end end end end after end end end end Power failure reset (off → on) I'm All Do La, ah All after All Bar, sa La, ah All In case of power failure (on → off) I'm end I I I after end I I I

In Table 2, "a" to "a" means each of the following.

end; Erase existing data and wait in initial state.

I; Wait only for the measured data at the current position.

All; Restart the system.

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

hemp; 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.

four; In case of heating type → The heating data measured in section 1 is saved effectively because the measurement is completed.

Ah; If it 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. If it is more than three times, it is ignored.

As described above, the control method of the combined air-conditioning package air conditioner outdoor unit and room air conditioner outdoor unit performance inspection system according to the present invention, all the inspection and determination is automatically made by the microcomputer, and when the abnormal operation is an external error mode It will be displayed on the screen to zoom in and activate the warning lights. 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.

As described above, the performance inspection system of the combined air-conditioner outdoor unit and the room air-conditioner outdoor unit according to the present invention can eliminate judgment errors caused by the human eye since all inspections and determinations are automatically performed by the microcomputer. Therefore, the reliability of inspection can be improved. And even if the operator does not observe the performance test progress of the air conditioner, it can be accurately confirmed as measured data to prevent the shipment of poor performance products.

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, although the exemplary embodiment for implementing the performance test system and the control method of the air-conditioner outdoor unit and room air conditioner outdoor unit for both air conditioning and heating according to the present invention has been described and described, the present invention is not limited to the above-described embodiment. Without departing from the gist of the invention as claimed in the following claims, any one of ordinary skill in the art to which the invention pertains may make various modifications.

Claims (30)

It is divided into four working sections: heating inspection section, cooling inspection section, data transmission section and inspection end section, and a cooling switching position sensor is installed between the heating inspection section and the cooling inspection section, and the cooling inspection section and the data transmission section A data transmission position sensor installed therebetween, a reset position sensor installed at an end of the work end section, and a conveyor for sequentially transferring the air conditioner outdoor unit to be inspected; A trolley conveyor installed at a predetermined distance upwardly from the conveyor; A power rail for power supply installed at a predetermined distance from the trolley conveyor side; At least one suspension-supported on the trolley conveyor, is electrically connected to the power rail, connected to the air conditioner outdoor unit conveyed on the conveyor by a connecting pipe, the load can be changed according to the model change or capacity change of the outdoor unit The cooling and heating load variable performance tester is provided, wherein the cooling and heating load variable performance tester is a high pressure side branched into a package air conditioner and a cooling / heating refrigerant line dedicated to the air conditioner outdoor unit and a closed air circulation line by the connection pipe. Refrigerant line; A low pressure side refrigerant line forming a closed circulation path with the air conditioner outdoor unit by the connection pipe; A heat exchanger partitioned by at least two heat exchangers connected in parallel between the high and low pressure side refrigerant lines; A shutoff valve for selectively blocking a flow path to each of the heat exchangers of the heat exchanger; A pressure sensor installed in the low pressure side refrigerant line and checking a pressure of the circulating refrigerant; And a control device for controlling a cooling and heating load according to a model change and a capacity change of the air conditioner outdoor unit by the pressure measured from the pressure sensor. Inspection system. The system of claim 1, wherein the inspection system further includes a warning light to alert an alarm when an error occurs or a defective product is determined. According to claim 1 or claim 2, wherein the high-pressure side refrigerant line is installed in the refrigerant line dedicated to the room air conditioner and the valve for selectively blocking the flow path; A cooling capillary tube and a heating capillary tube connected to and installed in series on the refrigerant line dedicated to the package air conditioner; A cooling dedicated refrigerant line installed to connect the cooling capillary tube and the high pressure side refrigerant line to form a refrigerant flow path in a cooling mode operation; And a check valve installed in the cooling dedicated refrigerant line to prevent backflow of the refrigerant during a heating mode operation. The heat exchanger of claim 1, wherein the heat exchanger is divided into two stages of the first heat exchanger and the second heat exchanger connected in parallel to the high and low pressure refrigerant lines, and the shutoff valve is configured to selectively block the flow of the refrigerant. 1 Performance inspection system for a combined air-conditioner outdoor unit and a room air-conditioner outdoor unit, characterized in that installed on the high-pressure side refrigerant line connection portion of the heat exchanger. The heat exchanger of claim 1, wherein the heat exchanger is divided into three stages of the first heat exchange part, the second heat exchange part, and the third heat exchange part connected in parallel to the high and low pressure side refrigerant lines, and the shutoff valve selectively controls the flow of the refrigerant. In order to cut off, the first heat exchanger and the third heat exchanger are respectively installed on the high pressure side refrigerant line connection part, and the low pressure side refrigerant line connection part of the third heat exchanger is provided with a reverse flow prevention shutoff valve, characterized in that the package is installed. Performance inspection system of air conditioner outdoor unit and room air conditioner outdoor unit. The heat exchanger of claim 1, wherein the heat exchanger is partitioned into four stages of a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fourth heat exchanger connected in parallel to the high and low pressure refrigerant lines. In order to selectively block the flow of air, the first heat exchanger, the third heat exchanger, and the fourth heat exchanger are respectively installed on the high pressure side refrigerant line connection part, and the low pressure side refrigerant line connection part of the third heat exchanger part is provided with a backflow prevention shutoff valve. The air-conditioning outdoor unit and room air conditioner outdoor unit performance inspection system, characterized in that the air conditioning outdoor unit. According to claim 1, wherein the heat exchanger is divided 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 connected in parallel to the high, low pressure side refrigerant line, The shutoff valves are respectively installed on the high pressure side refrigerant line connection parts of the first heat exchange part, the third heat exchange part, the fourth heat exchange part, and the fifth heat exchange part to selectively block the flow of the refrigerant, and the low pressure side of the third heat exchange part. Refrigerant line connection part is installed in the air conditioning outdoor unit and room air conditioner outdoor unit, characterized in that the check valve is installed to prevent the backflow. 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, The air conditioner outdoor unit and room for both air conditioning and heating, characterized in that the auxiliary capillary tube and the solenoid valve for opening and closing the line are installed in this line to assist the operation of the cooling capillary tube in response to a change in the volume of the inspected object. Performance inspection system of air conditioner outdoor unit. The method according to any one of claims 4 to 7, wherein at least one bypass line for directly connecting the high-pressure side refrigerant line and the low-pressure side refrigerant line is provided, the bypass line includes a bypass pipe capillary tube and Line open / close solenoid valve is installed, and in case of abnormal overheating of product set in heating mode operation, it is possible to bypass flow of refrigerant to adjust the flow rate. 9. The method of claim 8, wherein at least one bypass line for directly connecting the high pressure side refrigerant line and the low pressure side refrigerant line is provided, and the bypass line is provided with a bypass capillary tube and a solenoid valve for opening and closing the line. Cooling and heating combined package air conditioner outdoor unit and room air conditioner outdoor unit performance test system, characterized in that to control the flow rate by bypassing the refrigerant in the event of abnormal overheating of the product set in the heating mode operation. The apparatus of claim 1, 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 cooling switching position sensor, a data transmitting position sensor, and a reset position sensor; A pressure sensor display unit displaying pressure data input from the pressure sensor of the sensor unit; A switch unit receiving a signal from a start switch, a cooling / heating selection switch, an inverter, and a balance selection capacity selection switch; A drive display unit for displaying the drive of the corresponding valve according to the capacity selection of each switch unit; A microcomputer that analyzes signals inputted from these sensors and switches, determines and stores sums, 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 driving unit passive type configured to include a power supply unit. The apparatus of claim 1, 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 cooling switching position sensor, a data transmitting position sensor, and a reset position sensor; A pressure sensor display unit displaying pressure data input from the pressure sensor of the sensor unit; A switch unit which receives a signal from a start switch, a cooling and heating selection switch, an inverter, and a capacity selection switch for each parallel band; A drive display unit for displaying a drive of a corresponding valve according to selection of a capacity selection switch for each balance unit of the switch unit; A driving unit for automatically driving a corresponding valve according to selection of a capacity selection switch for each balance unit of the switch unit; A microcomputer that analyzes signals inputted from these sensors and switches, determines and stores sums, 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 driving unit automatic type configured to include a power supply unit. The display apparatus of claim 11 or 12, wherein the driving display unit displays 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 the performance testing device, and drives the corresponding light emitting diodes under the control of a microcomputer. Cooling and heating combined package air conditioner outdoor unit and room air conditioning outdoor unit performance test system, characterized in that consisting of a drive IC. The system of claim 11 or 12, wherein the data transmitter is configured to repeatedly transmit data at least three times. The driving circuit of claim 12, wherein the driving unit comprises a plurality of relays for driving a shutoff valve, a solenoid valve, a fan, an output switch, a four-way switching valve, a warning lamp, and the like under a control of a microcomputer. The air conditioning outdoor unit and air conditioner outdoor unit and the air conditioner outdoor unit performance inspection system, characterized in that consisting of. (a) inputting information about a subject under an external input device; (b) analyzing the information input in the step (a) to set the load of the performance test apparatus according to the model and capacity and to display the initial pressure detected from the pressure sensor; (c) inspecting the air conditioner outdoor unit in the heating section based on the load and the detected initial pressure set in step (b) and storing the checked data; (d) checking the pressure value and the test time required based on the heating test data stored in step (c) and displaying a corresponding error mode in case of abnormal result; (e) detecting a power 'on / off' state during the heating test up to all the above steps; (f) checking the air conditioner outdoor unit in the cooling section according to the result detected in step (e) and storing the checked data; (g) checking the pressure value and the test time required based on the cooling test data stored in the step (f) and displaying a corresponding error mode in case of abnormal results; (h) detecting a power 'on / off' state during the cooling test of steps (f) and (g); (i) analyzing the results inspected in all the above steps to determine the sum, the part and transmitting the stored data; (j) detecting a power 'on / off' state during data transmission in step (i); And (k) a control method of the air conditioning outdoor unit and room air conditioner outdoor unit performance inspection system, characterized in that it comprises a step of terminating the operation to erase all data according to the result detected in step (j). The method of claim 16, wherein in the step (a), after inputting information on the object under test, a key error is detected and a model selection key error mode (EO-6) is displayed in the case of a key error. Combined package Control method of air conditioner outdoor unit and room air conditioner outdoor unit performance test system. 17. The method of claim 16, wherein the data storage in the step (c) 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. Control method of the air-conditioner outdoor unit and room air conditioner outdoor unit performance test system, characterized in that the storage at intervals, the maximum size of 57 bytes. 17. The method of claim 16, wherein in the step (d), the pressure value is checked based on the initial maximum compressor protection pressure, and when the pressure value exceeds the compressor protection pressure by checking whether the pressure is within the set pressure range in the second time, the EH-2 error mode. The control method of the air-conditioner outdoor unit and room air conditioner outdoor unit performance inspection system, characterized in that the initializing the system, and displays the EH-1 or EH-3 error mode when the pressure is below the set pressure. 20. The method according to claim 19, wherein if the measured pressure value is less than or equal to the set pressure, it is checked whether the pressure value is in the range of 7 to 9 · 4 Kg / cm ² , and if it is within this range, the EH-1 error mode is selected. Control method of the air-conditioning outdoor unit and room air conditioner outdoor unit performance inspection system for a combined cooling and heating. 17. The method of claim 16, wherein in the step (d), if the inspection time is less than or equal to the minimum time required for the heating inspection, the test time shortage error mode (EH-4) is displayed. Package Air conditioner outdoor unit and room air conditioner outdoor unit performance control system control method. 17. The method of claim 16, wherein the step (e) is to control the air conditioner outdoor unit and the room air conditioner outdoor unit performance test system, characterized in that the data measured until immediately before the power 'off' is detected and the system is initialized. Way. 17. The method of claim 16, wherein the data storage in step (f) 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. Control method of the air-conditioner outdoor unit and room air conditioner outdoor unit performance test system, characterized in that the storage at intervals, the maximum size of 57 bytes. 17. The method of claim 16, wherein in step (g), the pressure value is checked on the basis of the initial maximum compressor protection pressure, and then, whether the pressure value is within the set pressure range in the second time, and the compressor protection pressure is exceeded. In addition to displaying the mode and initialize the system, when the pressure is out of the set pressure, the air conditioner outdoor unit for both air conditioning and heating, characterized in that the corresponding error mode of the error mode of EC-1, EC-2 or EO-5 is displayed Control method of indoor air conditioner performance test system. 25. The method according to claim 24, 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 if it has been continued for more than 3 minutes, the EC- 2, a control method of a cooling air-conditioning combined air conditioner outdoor unit and a room air conditioner outdoor unit performance inspection system, characterized in that the error mode is displayed, otherwise the EO-5 error mode is displayed. 17. The method of claim 16, wherein in the step (g), 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. Package Air conditioner outdoor unit and room air conditioner outdoor unit performance control system control method. 17. The method of claim 16, wherein the step (h) maintains the measured data at the current position when the power is 'off', and checks before and after the error determination when the power is 'on', and then cools the air in the cooling inspection section. The control method of the air-conditioning outdoor unit and room air conditioner outdoor unit performance test system, characterized in that the test is repeated, and if so after the error display to perform the cooling test again. The control method of claim 16, wherein the data transmission in step (i) is repeated at least three times. The cooling and heating method of claim 16, wherein the step (j) maintains the measured data at the current position when the power is 'off' and then turns on the cooling operation to recover the refrigerant. Combined package Control method of air conditioner outdoor unit and room air conditioner outdoor unit performance test system. 17. The method of claim 16, wherein the step (k) checks whether the start switch is 'off' and erases all data if 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-conditioner outdoor unit and room air conditioner outdoor unit performance test system, characterized in that the operation returns to the initial test mode when the power is 'on' while waiting.

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