Variable frequency air conditioner outdoor unit rapid entropy detection control method and device and outdoor unit

Abstract

This invention provides a control method, device, and outdoor unit for rapid entropy detection of variable frequency air conditioner outdoor units. The method includes: upon receiving an entropy detection command, acquiring parameters for each mode to be detected; the parameters include a target frequency, a first duration for frequency conversion to the target frequency, and a second duration for continuous operation at the target frequency; the sum of the first and second durations for all modes to be detected for different models is equal; operating in the mode to be detected; and calculating the frequency ramp-up / amplification rate based on the current frequency, the target frequency of the mode to be detected, and the first duration for frequency conversion to the target frequency; and ramping up / amplifying the frequency to the target frequency of the mode to be detected based on the frequency ramp-up / amplification rate. In this embodiment of the invention, the entropy detection mode time for different models remains consistent, and the frequency ramp-up / amplification rate for each mode is automatically calculated, thus improving detection efficiency. It eliminates the need to adjust the flow rate of the production line and the workstation position of the detection personnel, avoiding the impact of different models on entropy detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of entropy detection technology for air conditioner outdoor units, and more specifically, to a control method, device, and outdoor unit for rapid entropy detection of variable frequency air conditioner outdoor units. Background Technology

[0002] Outdoor unit entropy testing is the final step in checking the operating status of the air conditioning system before it leaves the factory to ensure it is not operating abnormally. During testing, a fixture is connected to the outdoor unit. After the fixture is powered on, the outdoor unit runs in heating mode, cooling mode, and refrigerant recovery mode sequentially according to the time set by the fixture. This method uses normal frequency conversion speeds, requiring the compressor frequency to run at its highest level to ensure reliability. Because different models have different frequencies and frequency conversion rates for each mode, the testing time varies for each model. Therefore, when changing models on the production line, adjustments to the line speed and the positions of the testing personnel are necessary, affecting the overall efficiency of the entropy testing. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a control method for rapid entropy detection of an outdoor unit of a variable frequency air conditioner. The method includes: upon receiving an entropy detection command, acquiring parameters for each mode to be detected; the parameters include a target frequency, a first duration for frequency conversion to the target frequency, and a second duration for continuous operation at the target frequency; the sum of the first duration and the second duration for all modes to be detected of different models is equal; operating in the mode to be detected, and calculating the frequency ramp-up / amplification rate based on the current frequency, the target frequency of the mode to be detected, and the first duration for frequency conversion to the target frequency; and ramping up / amplifying the frequency to the target frequency of the mode to be detected based on the frequency ramp-up / amplification rate.

[0004] The control method for rapid entropy detection of variable frequency air conditioner outdoor units provided in this embodiment of the invention has pre-set variable frequency related parameters for each detection mode. The entropy detection mode time of different models is kept consistent, and the frequency increase and decrease rate of each mode is automatically calculated. Therefore, the detection efficiency can be improved without adjusting the flow rate of the production line and the work position of the detection personnel, thus avoiding the impact of different models on the entropy detection efficiency.

[0005] Optionally, the method further includes: after running in the detection mode for a corresponding second duration, running in the next detection mode, and calculating the next up / down rate based on the target frequency of the detection mode, the target frequency of the next detection mode, and the first duration of frequency conversion of the next detection mode to the target frequency; and performing up / down conversion to the target frequency of the next detection mode based on the next up / down rate.

[0006] In this embodiment of the invention, considering that the entropy detection process needs to be maintained for a certain period of time, the system switches to the next detection mode after the maintenance is completed. This eliminates the need to set the acceleration and deceleration frequency and ensures that the detection time for each detection mode is controllable.

[0007] Optionally, the modes to be detected include: heating mode, cooling mode, and refrigerant recovery mode.

[0008] The embodiments of the present invention provide specific modes to be detected, and the total entropy detection time can be controlled by pre-setting the time for each mode.

[0009] Optionally, the method further includes: if the low pressure is lower than a preset threshold, controlling the valve to close and power off.

[0010] In this embodiment of the invention, the low-pressure of the outdoor unit is determined after the refrigerant recovery mode is activated, thereby determining whether it is safe to exit the entropy detection process.

[0011] Optionally, the mode to be detected is a heating mode. The step of operating in the mode to be detected and calculating the frequency ramp-up / amplitude rate based on the current frequency, the target frequency of the mode to be detected, and the first duration of frequency conversion to the target frequency includes: the outdoor unit operating in the heating mode and calculating the frequency ramp-up / amplitude rate based on the current frequency, the target frequency of the heating mode, and the first duration of frequency conversion to the target frequency.

[0012] In this embodiment of the invention, the outdoor unit operates in heating mode after power-on, and the frequency conversion rate is calculated based on the parameters of the heating mode, thereby improving detection efficiency.

[0013] Optionally, the next mode to be detected is a cooling mode, and the method further includes: after the heating mode runs for a second duration, running in the cooling mode, and calculating a next frequency ramping rate based on the target frequency of the heating mode, the target frequency of the cooling mode, and a first duration for the frequency to be ramped to the target frequency of the cooling mode; and ramping to the target frequency of the cooling mode based on the next frequency ramping rate.

[0014] In this embodiment of the invention, after the heating mode test is completed, the cooling mode is activated, and the frequency conversion rate is calculated based on the parameters of the heating mode and the cooling mode, thereby improving the detection efficiency.

[0015] Optionally, the next mode to be detected is a refrigerant recovery mode, and the method further includes: after the refrigeration mode runs for a second duration, running in the refrigerant recovery mode, and calculating the next frequency ramp-up / amplification rate based on the target frequency of the refrigeration mode, the target frequency of the refrigerant recovery mode, and the first duration of the frequency ramp-up / amplification of the refrigerant recovery mode to the target frequency; and performing frequency ramp-up / amplification to the target frequency of the refrigerant recovery mode based on the next frequency ramp-up / amplification rate.

[0016] In this embodiment of the invention, after the refrigeration mode test is completed, the refrigerant recovery mode is started. The frequency ramp-up and ramp-down rates are calculated based on the parameters of the refrigeration mode and the refrigerant recovery mode, thereby improving the detection efficiency.

[0017] This invention provides a control device for rapid entropy detection of an outdoor unit of a variable frequency air conditioner. The device includes: an acquisition module, used to acquire parameters of each mode to be detected after receiving an entropy detection command; the parameters include a target frequency, a first duration of frequency conversion to the target frequency, and a second duration of continuous operation at the target frequency; the sum of the first duration and the second duration of all modes to be detected for different models is equal; a calculation module, used to operate in the mode to be detected and calculate the frequency ramp-up / amplification rate based on the current frequency, the target frequency of the mode to be detected, and the first duration of frequency conversion to the target frequency; and a frequency ramp-up / amplification module, used to ramp up / up / amplification to the target frequency of the mode to be detected based on the frequency ramp-up / amplification rate.

[0018] This invention provides an outdoor unit for a variable frequency air conditioner, including a computer-readable storage medium storing a computer program and a processor. The computer-readable storage medium stores parameters for each mode to be detected, and the processor is communicatively connected to an entropy detection fixture. When the computer program is read and executed by the processor, it implements any of the methods described above.

[0019] This invention provides a computer-readable storage medium storing a computer program, which is read and executed by a processor to implement the above-described method.

[0020] The control device and outdoor unit for rapid entropy detection of variable frequency air conditioner outdoor units of the present invention can achieve the same technical effect as the control method for rapid entropy detection of variable frequency air conditioner outdoor units described above. Attached Figure Description

[0021] Figure 1 A flowchart illustrating a control method for rapid entropy detection of an outdoor unit of a variable frequency air conditioner, provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic flowchart illustrating a control method for outdoor unit entropy detection in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a control device for rapid entropy detection of an outdoor unit of a variable frequency air conditioner, according to an embodiment of the present invention. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] This invention provides a control method for entropy detection of the outdoor unit of a variable frequency air conditioner. An entropy detection command is sent to the outdoor unit via a detection fixture. The main chip of the outdoor unit reads the set parameters stored in an electrically erasable programmable read-only memory (EEPROM), and operates according to the set parameters and modes. When the machine is powered on, the main chip reads the frequency and entropy detection time for each mode, automatically calculating the machine's frequency ramp-up and ramp-down rates to ensure consistent entropy detection time for different models, eliminating the need to adjust the production line speed or the workstation position of the detection personnel.

[0026] Figure 1 A schematic flowchart of a control method for rapid entropy detection of an outdoor unit of a variable frequency air conditioner, according to an embodiment of the present invention, is shown. The method includes the following steps:

[0027] S102, upon receiving the entropy detection command, acquires the parameters of each mode to be detected. These parameters may include the target frequency of the mode, the first duration of frequency conversion to the target frequency, and the second duration of continuous operation at the target frequency. The mode to be detected may be a heating mode, a cooling mode, a refrigerant recovery mode, etc.

[0028] The sum of the first and second durations for all modes to be tested across different models is equal. For example, if one model includes heating, cooling, and refrigerant recovery modes, and another model includes only cooling and refrigerant recovery modes, then the sum of the first and second durations for all modes of the first model is equal to the sum of the first and second durations for all modes of the other model. By ensuring that the required entropy detection time is consistent across different models, the efficiency of entropy detection can be avoided due to differences in model design.

[0029] S104, operating in the above-mentioned detection mode, and calculating the frequency ramp-up / downrate based on the current frequency, the target frequency of the detection mode, and the first duration of frequency conversion to the target frequency.

[0030] Assuming the parameters mentioned above are preset to ensure consistent entropy detection time for different models, the ramp-up / amplitude rates for each mode can be automatically calculated based on the parameters of each model. Specifically, the ramp-up / amplitude rate can be calculated by calculating the difference between the current frequency and the target frequency of the current mode, combined with the first duration corresponding to the frequency conversion. In this embodiment, the ramp-up / amplitude rates for each mode are automatically calculated, eliminating the need to set the ramp-up / amplitude rates, thereby improving detection efficiency and shortening detection time.

[0031] S106, the frequency is increased or decreased according to the above-mentioned frequency increase / decrease rate to the target frequency of the mode to be detected.

[0032] The control method for rapid entropy detection of variable frequency air conditioner outdoor units provided in this embodiment of the invention has pre-set variable frequency related parameters for each detection mode. The entropy detection mode time of different models is kept consistent, and the frequency increase and decrease rate of each mode is automatically calculated. Therefore, the detection efficiency can be improved without adjusting the flow rate of the production line and the work position of the detection personnel, thus avoiding the impact of different models on the entropy detection efficiency.

[0033] Furthermore, considering that the entropy detection process needs to be maintained for a certain period of time, the method switches to the next detection mode only after the maintenance period is completed. Based on this, the above method also includes:

[0034] First, after running for the second duration corresponding to the aforementioned detection mode, the next detection mode is run. Based on the target frequency of the detection mode, the target frequency of the next detection mode, and the first duration of frequency conversion to the target frequency in the next detection mode, the next up / down rate is calculated. The frequency conversion rate can be calculated using the difference between the target frequencies of the two modes and the frequency conversion duration of the next detection mode. Then, frequency conversion is performed to the target frequency of the next detection mode based on this next up / down rate.

[0035] After running in a certain detection mode for a preset time, it switches to the next detection mode and automatically calculates the rise and fall rate of the next detection mode. This eliminates the need to set the rise and fall rate and ensures that the detection time for each detection mode is controllable.

[0036] Optionally, after power-on, the outdoor unit operates in heating mode, and the frequency conversion rate is calculated based on the current frequency, the target frequency of the heating mode, and the first time to convert to the target frequency.

[0037] Furthermore, after the heating mode test is completed, the cooling mode is activated. Based on this, after the outdoor unit runs in heating mode for a second period of time, it runs in cooling mode, and the next frequency ramp-up / amplification rate is calculated based on the target frequency of the heating mode, the target frequency of the cooling mode, and the first time of the cooling mode's frequency ramp-up / amplification to the target frequency; the frequency ramp-up / amplification is then performed to the target frequency of the cooling mode based on this next frequency ramp-up / amplification rate.

[0038] Furthermore, after the cooling mode test is completed, the refrigerant recovery mode is activated. Based on this, after the outdoor unit runs in cooling mode for a second period of time, it runs in refrigerant recovery mode. The next frequency ramp-up / amplification rate is calculated based on the target frequency of the cooling mode, the target frequency of the refrigerant recovery mode, and the first time of the refrigerant recovery mode's frequency conversion to the target frequency. The frequency ramp-up / amplification rate is then used to ramp up / up / amplify the refrigerant recovery mode to the target frequency.

[0039] After entering refrigerant recovery mode, the low-pressure reading of the outdoor unit is checked to determine whether the entropy detection process can be safely exited. Specifically, if the low-pressure reading is below a preset threshold, the control valve is closed and the power is cut off. For example, the entropy detection equipment detects the low-pressure reading; when it falls below the preset threshold, the indicator light on the entropy detection fixture flashes, indicating that the valve can be closed. Once the valve is closed, the machine is powered off, and the entropy detection process ends.

[0040] Figure 2 A schematic flowchart of a control method for outdoor unit entropy detection according to an embodiment of the present invention is shown. The method includes the following steps:

[0041] After power-on, read the relevant EEPROM parameters and wait for the tool to send instructions.

[0042] S21, the tooling sends an entropy detection command to the outdoor unit, and the outdoor unit calls up parameters such as heating frequency, cooling frequency, entropy detection mode time and refrigerant recovery frequency in the entropy detection program.

[0043] S22, the outdoor unit starts heating operation. The main chip calculates the required frequency increase rate V1 based on the set frequency increase time T1 and operating frequency F1. The compressor increases the frequency to the target frequency F1 according to the calculated frequency increase rate V1.

[0044] S23, after running for time T, the outdoor unit's operating mode directly changes to cooling mode. The main chip calculates the frequency ramp-up rate V2 based on the current heating frequency F1, cooling frequency F2, and the required time T2. At the same time, the compressor ramps up to the target frequency F2 according to the calculated frequency ramp-up rate V2.

[0045] S24, after running for time T, the outdoor unit's operating mode directly changes to refrigerant recovery mode. The main chip calculates the frequency increase / decrease rate V3 based on the current cooling frequency F2, refrigerant recovery frequency F3, and the required time T3. At the same time, the compressor increases the frequency to the target frequency F3 according to the calculated frequency increase rate V3.

[0046] S25, the entropy detection equipment detects the low pressure. When the low pressure is lower than P0, the indicator light on the entropy detection fixture flashes, indicating that the valve can be closed. After the valve is closed, the machine is powered off, and the entropy detection ends.

[0047] In this embodiment of the invention, the rise and fall rates of each mode are automatically calculated, eliminating the need to set the rise and fall rates, thus improving detection efficiency and shortening time. The time for entropy detection modes remains consistent across different machine models, allowing for accurate calculation of the required time for entropy detection and avoiding the impact of different machine models on entropy detection efficiency. Furthermore, the consistent time for entropy detection modes across different machine models eliminates the need to adjust the flow rate of the production line or the workstation position of the inspection personnel.

[0048] Figure 3This invention illustrates a schematic diagram of a control device for rapid entropy detection of an outdoor unit of a variable frequency air conditioner, according to an embodiment of the present invention. The device includes:

[0049] The acquisition module 301 is used to acquire parameters of each mode to be detected after receiving the entropy detection command; the parameters include target frequency, first duration of frequency conversion to the target frequency, and second duration of continuous operation at the target frequency; the sum of the first duration and second duration of all modes to be detected of different models is equal;

[0050] The calculation module 302 is used to operate in the detection mode and calculate the frequency ramp rate based on the current frequency, the target frequency of the detection mode, and the first duration of frequency conversion to the target frequency.

[0051] The frequency ramping module 303 is used to ramp up or down to the target frequency of the mode to be detected according to the frequency ramping rate.

[0052] The control device for rapid entropy detection of variable frequency air conditioner outdoor units provided in this embodiment of the invention has pre-set variable frequency related parameters for each detection mode. The entropy detection mode time of different models is consistent, and the frequency increase and decrease rate of each mode is automatically calculated. Therefore, the detection efficiency can be improved without adjusting the flow rate of the production line and the work position of the detection personnel, thus avoiding the impact of different models on the entropy detection efficiency.

[0053] As a feasible approach, the calculation module is configured to: after running in the detection mode for a corresponding second duration, run in the next detection mode, and calculate the next frequency ramp rate based on the target frequency of the detection mode, the target frequency of the next detection mode, and the first duration of the frequency ramp to the target frequency of the next detection mode; the frequency ramp module is configured to: ramp to the target frequency of the next detection mode based on the next frequency ramp rate.

[0054] As a feasible approach, the modes to be detected include: heating mode, cooling mode, and refrigerant recovery mode.

[0055] As an alternative, the device also includes a low-pressure detection mode for: controlling the valve to close and power off if the low-pressure is below a preset threshold.

[0056] As one possible approach, the calculation module is used to: operate the outdoor unit in the heating mode, and calculate the frequency ramp-up / downclock rate based on the current frequency, the target frequency of the heating mode, and the first duration of frequency conversion to the target frequency.

[0057] As a feasible approach, the next mode to be detected is the cooling mode. The frequency ramping module is further configured to: after the heating mode has been running for a second duration, run in the cooling mode; and calculate the next frequency ramping rate based on the target frequency of the heating mode, the target frequency of the cooling mode, and the first duration of the frequency ramping of the cooling mode to the target frequency; and ramp up or down to the target frequency of the cooling mode based on the next frequency ramping rate.

[0058] As a feasible approach, the next mode to be detected is the refrigerant recovery mode. The frequency ramping module is further configured to: after the refrigeration mode has been running for a second duration, run in the refrigerant recovery mode, and calculate the next frequency ramping rate based on the target frequency of the refrigeration mode, the target frequency of the refrigerant recovery mode, and the first duration of the frequency ramping of the refrigerant recovery mode to the target frequency; and ramp up or down to the target frequency of the refrigerant recovery mode based on the next frequency ramping rate.

[0059] This invention provides an outdoor unit for a variable frequency air conditioner, including a computer-readable storage medium storing a computer program and a processor. The computer-readable storage medium stores parameters for each mode to be detected, and the processor is communicatively connected to an entropy detection fixture. The computer program is read and executed by the processor to implement the above-described method.

[0060] This invention also provides a computer-readable storage medium storing a computer program. When the computer program is read and executed by a processor, it implements the method provided in the above embodiments and achieves the same technical effect. To avoid repetition, further details are omitted here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0061] Of course, those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by computer-controlled devices. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The storage medium can be a memory, a disk, an optical disk, etc.

[0062] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0063] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0065] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A control method for rapid entropy detection of an outdoor unit of a variable frequency air conditioner, characterized in that, The method includes: after receiving an entropy detection command, acquiring parameters for each mode to be detected; the parameters include a target frequency, a first duration of frequency conversion to the target frequency, and a second duration of continuous operation at the target frequency; the sum of the first duration and the second duration of all modes to be detected for different models is equal; The frequency ramp rate is calculated based on the current frequency, the target frequency of the detection mode, and the first duration of frequency conversion to the target frequency. The frequency is increased or decreased according to the stated rate to the target frequency of the mode to be detected.

2. The method as described in claim 1, characterized in that, The method further includes: After running in the detection mode for a corresponding second duration, the next detection mode is run, and the next frequency ramp rate is calculated based on the target frequency of the detection mode, the target frequency of the next detection mode, and the first duration of the frequency conversion of the next detection mode to the target frequency. The frequency is increased or decreased to the target frequency of the next detection mode according to the next increase / decrease rate.

3. The method as described in claim 1 or 2, characterized in that, The modes to be tested include: heating mode, cooling mode, and refrigerant recovery mode.

4. The method as described in claim 1 or 2, characterized in that, The method further includes: If the low pressure is lower than the preset threshold, the control valve will be closed and the power will be cut off.

5. The method as described in claim 1, characterized in that, The mode to be detected is a heating mode. The process of operating in the mode to be detected, and calculating the frequency ramp-up / amplification rate based on the current frequency, the target frequency of the mode to be detected, and the first duration of frequency conversion to the target frequency, includes: The outdoor unit operates in the heating mode, and the frequency conversion rate is calculated based on the current frequency, the target frequency of the heating mode, and the first duration of frequency conversion to the target frequency.

6. The method as described in claim 5, characterized in that, The next mode to be detected is the cooling mode, and the method further includes: After the heating mode is operated for the second duration of the heating mode, the cooling mode is operated, and the next frequency ramping rate is calculated based on the target frequency of the heating mode, the target frequency of the cooling mode, and the first duration of the frequency conversion of the cooling mode to the target frequency. The frequency is increased or decreased to the target frequency of the cooling mode according to the next increase / decrease rate.

7. The method as described in claim 6, characterized in that, The next detection mode is the fluorine recovery mode, and the method further includes: After the cooling mode is operated for the second duration of the cooling mode, the refrigerant recovery mode is operated, and the next frequency ramping rate is calculated based on the target frequency of the cooling mode, the target frequency of the refrigerant recovery mode, and the first duration of the refrigerant recovery mode frequency ramping to the target frequency. The frequency is increased or decreased to the target frequency of the fluorine recovery mode according to the next increase or decrease rate.

8. A control device for rapid entropy detection of an outdoor unit of a variable frequency air conditioner, characterized in that, The device includes: an acquisition module, used to acquire parameters of each mode to be detected after receiving an entropy detection command; the parameters include a target frequency, a first duration of frequency conversion to the target frequency, and a second duration of continuous operation at the target frequency; the sum of the first duration and the second duration of all modes to be detected of different models is equal; The calculation module is used to operate in the detection mode and to calculate the frequency ramp rate based on the current frequency, the target frequency of the detection mode, and the first duration of frequency conversion to the target frequency. The frequency ramping module is used to ramp up or down to the target frequency of the mode to be detected according to the ramping rate.

9. A variable frequency air conditioner outdoor unit, characterized in that, It includes a computer-readable storage medium storing a computer program and a processor, the computer-readable storage medium storing parameters for each mode to be detected, and the processor being communicatively connected to an entropy detection fixture. The computer program is read and executed by the processor to implement the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when read and executed by a processor, implements the method as described in any one of claims 1-7.

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