Control method of a compressor of a refrigerator and refrigerator

Abstract

The application provides a control method of a refrigerator compressor and a refrigerator. The control method of the refrigerator compressor comprises the following steps: obtaining a first preset angle and a second preset angle when a starting condition of the compressor is met; energizing a first preset value of current to a stator winding coil of the compressor at the first preset angle, and detecting a first vibration value of the compressor; judging whether the first vibration value is less than or equal to a first vibration threshold value; if yes, energizing a second preset value of current to the stator winding coil at the second preset angle, and detecting a second vibration value of the compressor; judging whether the second vibration value is less than or equal to a second vibration threshold value; and if yes, controlling the compressor to start with a third preset value of current, wherein the first preset value, the second preset value and the third preset value increase in sequence. According to the scheme, the starting of the refrigerator compressor can be reasonably and scientifically controlled, and the service life of the refrigerator compressor is prolonged.

Description

Technical Field

[0001] This invention relates to the field of home appliance technology, and in particular to a method for controlling a refrigerator compressor and a refrigerator. Background Technology

[0002] As society develops and people's living standards improve, the pace of life becomes faster and faster. As a result, people are more willing to buy a lot of food and store it in the refrigerator. The refrigerator has become one of the indispensable household appliances in people's daily lives.

[0003] Refrigerators are constantly being upgraded, and refrigerator compressors have undergone a significant shift from fixed-frequency control to variable-frequency control, with variable-frequency technology gradually becoming the mainstream technology for refrigerator compressor control. In variable-frequency technology, the compressor startup process is particularly crucial, and this involves selecting the pre-positioning angle. Generally, to ensure the compressor starts normally, the pre-positioning angle is set twice. During the pre-positioning process, the pre-positioning angle is mostly configured according to the type of compressor. If the pre-positioning angle or starting current is set incorrectly, it will affect the compressor's startup. Currently, engineers face difficulties in setting parameters such as the pre-positioning angle and troubleshooting compressor startup failures. Summary of the Invention

[0004] One objective of this invention is to rationally and scientifically control the start-up of the refrigerator compressor, thereby extending its service life.

[0005] A further objective of this invention is to effectively, quickly, and accurately determine the preset angle at which the compressor has started successfully, thereby improving the convenience of troubleshooting compressor malfunctions.

[0006] Specifically, the present invention provides a method for controlling a refrigerator compressor, comprising: acquiring a set first preset angle and a second preset angle when the compressor start-up conditions are met; energizing a first preset value of current at the first preset angle of the compressor stator winding coil and detecting a first vibration value of the compressor; determining whether the first vibration value is less than or equal to a first vibration threshold; if so, energizing a second preset value of current at the second preset angle of the stator winding coil and detecting a second vibration value of the compressor; determining whether the second vibration value is less than or equal to a second vibration threshold; and if so, controlling the compressor to start with a current of a third preset value, wherein the first preset value, the second preset value, and the third preset value increase sequentially.

[0007] Optionally, a vibration sensor is provided on the inverter board of the compressor, and the step of detecting the first vibration value of the compressor includes: using the vibration sensor to detect the first vibration value; the step of detecting the second vibration value of the compressor includes: using the vibration sensor to detect the second vibration value.

[0008] Optionally, after the step of controlling the compressor to start with a current of a third preset value, the method further includes: determining whether the compressor is starting for the first time; and if so, controlling the compressor current to maintain the third preset value.

[0009] Optionally, after the step of controlling the compressor current to maintain a third preset value, the method further includes: determining whether the compressor shutdown conditions are met; and if so, controlling the compressor to stop, and if not, controlling the compressor to continue running until the shutdown conditions are met.

[0010] Optionally, if the compressor is not being powered on for the first time, the third vibration value of the compressor is detected; it is determined whether the third vibration value is less than or equal to the third vibration threshold; and if so, the compressor current is controlled to maintain the third preset value; if not, the compressor current is controlled to change to the fourth preset value, wherein the fourth preset value is less than the third preset value.

[0011] Optionally, if the first vibration value is greater than the first vibration threshold, the first preset angle is corrected by a first preset increment and the first correction number is recorded; if the second vibration value is greater than the second vibration threshold, the second preset angle is corrected by a second preset increment and the second correction number is recorded.

[0012] Optionally, if the first vibration value is still greater than the first vibration threshold when the first correction count reaches the first threshold, or if the second vibration value is still greater than the second vibration threshold when the second correction count reaches the second threshold, the indicator light of the refrigerator is controlled to flash with a preset color and preset frequency.

[0013] Optionally, if the first vibration value is less than or equal to the first vibration threshold when the first number of corrections is less than or equal to the first vibration threshold, or if the second vibration value is less than or equal to the second vibration threshold when the second number of corrections is less than or equal to the second vibration threshold, after receiving the trigger signal to enter the query mode, the display device of the refrigerator is controlled to display the angle value after the first preset angle and / or the second preset angle correction.

[0014] Optionally, the compressor is turned on when the actual temperature of the refrigerator's storage space is greater than or equal to the start-up temperature; and the compressor is turned off when the actual temperature is less than or equal to the turn-off temperature, wherein the turn-off temperature is lower than the start-up temperature.

[0015] According to another aspect of the present invention, a refrigerator is also provided, including a control device comprising a processor and a memory, wherein the memory stores a control program, and the control program, when executed by the processor, is used to implement the control method of the compressor of the refrigerator described above.

[0016] The refrigerator compressor control method and refrigerator of the present invention, when the compressor start-up conditions are met, acquire a set first preset angle and a second preset angle, energize a first preset value of current at the first preset angle of the compressor stator winding coil, and detect a first vibration value of the compressor. If the first vibration value is less than or equal to a first vibration threshold, energize a second preset value of current at the second preset angle of the stator winding coil, and detect a second vibration value of the compressor. If the second vibration value is less than or equal to a second vibration threshold, control the compressor to start with a current of a third preset value. The first preset value, the second preset value, and the third preset value increase sequentially, which can reasonably and scientifically control the start-up of the refrigerator compressor and extend its service life.

[0017] Furthermore, the compressor control method and refrigerator of the present invention, when the first correction count reaches the first threshold, if the first vibration value is still greater than the first vibration threshold, or when the second correction count reaches the second threshold, if the second vibration value is still greater than the second vibration threshold, controls the refrigerator's indicator light to flash with a preset color and preset frequency; when the first correction count is less than or equal to the first threshold, if the first vibration value is less than or equal to the first vibration threshold, or when the second correction count is less than or equal to the second threshold, if the second vibration value is less than or equal to the second vibration threshold, after receiving a trigger signal to enter the query mode, controls the refrigerator's display device to display the angle value after the first preset angle and / or the second preset angle correction. By flashing the indicator light and outputting relevant information by the display device, engineers can effectively, quickly, and accurately understand the preset angle at which the compressor has started successfully, and improve the convenience of querying compressor faults.

[0018] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic diagram of a refrigerator compressor control method according to an embodiment of the present invention;

[0021] Figure 2 This is a detailed flowchart of a refrigerator compressor control method according to an embodiment of the present invention;

[0022] Figure 3This is a current curve diagram of a refrigerator compressor when it is successfully started according to an embodiment of the present invention;

[0023] Figure 4 This is a current curve diagram of a refrigerator compressor failing to start according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the front structure of a refrigerator according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the rear structure of a refrigerator according to an embodiment of the present invention;

[0026] Figure 7 This is a structural block diagram of a refrigerator control device according to an embodiment of the present invention;

[0027] Figure 8 This is a connection diagram of the control device of a refrigerator according to an embodiment of the present invention; and

[0028] Figure 9 This is a schematic diagram of the compressor of a refrigerator according to an embodiment of the present invention. Detailed Implementation

[0029] This embodiment first provides a method for controlling the compressor of a refrigerator, which can reasonably and scientifically control the start-up of the refrigerator compressor and extend its service life. Figure 1 This is a schematic diagram of a refrigerator compressor control method according to an embodiment of the present invention, as shown below. Figure 1 As shown, the compressor control method of this refrigerator can be implemented by performing the following steps in sequence:

[0030] Step S102: Under the condition that the compressor is turned on, obtain the set first preset angle and second preset angle;

[0031] Step S104: Apply a first preset value of current to the first preset angle of the stator winding coil of the compressor, and detect the first vibration value of the compressor;

[0032] Step S106: Determine whether the first vibration value is less than or equal to the first vibration threshold. If so, proceed to step S108.

[0033] Step S108: Apply a second preset value of current to the stator winding coil at the second preset angle, and detect the second vibration value of the compressor;

[0034] Step S110: Determine whether the second vibration value is less than or equal to the second vibration threshold. If so, proceed to step S112.

[0035] Step S112: Control the compressor to start with the current at the third preset value.

[0036] In the above steps, the compressor start-up condition in step S102 can be: the actual temperature of the refrigerator's storage space is greater than or equal to the start-up temperature. That is, if the actual temperature of the refrigerator's storage space is greater than or equal to the start-up temperature, the compressor start-up condition is considered met. If the actual temperature of the refrigerator's storage space is less than the start-up temperature, the compressor start-up condition is considered not met.

[0037] In step S102, the first preset angle and the second preset angle are obtained. Generally, these first and second preset angles can be preset by an engineer. That is, the refrigerator compressor control method of this embodiment is actually applicable to the debugging stage before the refrigerator leaves the factory. In a specific embodiment, the first preset angle can be 30° and the second preset angle can be 90°. It should be noted that the specific values ​​of the first and second preset angles mentioned above are merely illustrative and not intended to limit the invention. In other embodiments, the first and second preset angles can also be set to other values.

[0038] Since engineers typically configure the preset angle based on the type of compressor, an inappropriate preset angle or starting current setting can affect compressor startup. Therefore, after executing step S104 (energizing the compressor's stator winding coil at the first preset angle and detecting the compressor's first vibration value), step S106 is executed to determine whether the first vibration value is less than or equal to a first vibration threshold. After executing step S108 (energizing the compressor's stator winding coil at the second preset angle and detecting the compressor's second vibration value), step S110 is executed to determine whether the second vibration value is less than or equal to a second vibration threshold.

[0039] Determining whether the first vibration value is less than or equal to the first vibration threshold, and whether the second vibration value is less than or equal to the second vibration threshold, is essentially to determine whether the first and second preset angles are appropriate. If the first vibration value is less than or equal to the first vibration threshold, the first preset angle is appropriate; otherwise, it is inappropriate. Similarly, if the second vibration value is less than or equal to the second vibration threshold, the second preset angle is appropriate; otherwise, it is inappropriate. This is because if the first and second preset angles are inappropriate, the compressor will vibrate severely, resulting in significant noise. If the first and second preset angles are appropriate, the compressor will vibrate less, with almost no noise.

[0040] In a preferred embodiment, a vibration sensor is provided on the inverter board of the compressor. Step S104, detecting the first vibration value of the compressor, may include: obtaining the first vibration value using the vibration sensor. Step S108, detecting the second vibration value of the compressor, may include: obtaining the second vibration value using the vibration sensor.

[0041] Figure 3 This is a current curve diagram of a refrigerator compressor when it starts successfully, according to an embodiment of the present invention. Figure 3 As shown, when the first and second preset angles are appropriate and the compressor starts successfully, the current will reach the first preset value I1 from 0 with a first slope within the first time T1, and the current will reach the second preset value I2 from the first preset value I1 with a second slope within the second time T2. At this time, the vibration of the compressor is relatively mild, the first vibration value will be less than or equal to the first vibration threshold, and the second vibration value will be less than or equal to the second vibration threshold.

[0042] Figure 4 This is a current curve diagram of a refrigerator compressor failing to start according to an embodiment of the present invention, such as... Figure 4 As shown, when the first and second preset angles are unsuitable and the compressor fails to start, the current will not reach the first preset value I1 from 0 with a first slope within the first time T1, and the current will not reach the second preset value I2 from the first preset value I1 with a second slope within the second time T2. Specifically, the current from 0 to the first preset value I1 and from the first preset value I1 to the second preset value I2 are both curved curves, and will not reach the first preset value I1 and the second preset value I2 according to the fixed first slope and second slope, respectively. At this time, the compressor vibration is severe, the first vibration value will be greater than the first vibration threshold, and the second vibration value will be greater than the second vibration threshold.

[0043] In practice, when a first preset value of current is applied to the stator winding coil of the compressor at a first preset angle, a force is exerted at that angle. If the first preset angle is appropriate, the compressor's first vibration value will be less than or equal to a first vibration threshold, and the current will reach the first preset value I1 from 0 at a first slope within a first time T1. When a second preset value of current is applied to the stator winding coil of the compressor at a second preset angle, a force is exerted at that angle. If the second preset angle is appropriate, the compressor's second vibration value will be less than or equal to a second vibration threshold, and the current will reach the second preset value I2 from the first preset value I1 at a second slope within a second time T2.

[0044] In one specific embodiment, it can be determined by a microcontroller or an oscilloscope whether the current reaches a first preset value I1 from 0 with a first slope within a first time T1, and whether the current reaches a second preset value I2 from the first preset value I1 with a second slope within a second time T2. That is, besides determining the suitability of the first and second preset angles based on the compressor's vibration in this embodiment, in other embodiments, the suitability of the first and second preset angles can also be determined by a microcontroller or an oscilloscope.

[0045] When the first vibration value is less than or equal to the first vibration threshold and the second vibration value is less than or equal to the second vibration threshold, i.e., when both the first and second preset angles are appropriate, step S112 is executed to control the compressor to start with a current of the third preset value. It should be noted that the first, second, and third preset values ​​increase sequentially. In reality, the current of the third preset value is the actual starting current, which acts as an overcharge current to enable the compressor to start.

[0046] The compressor control method of this embodiment, when the compressor start-up conditions are met, acquires a set first preset angle and a second preset angle, applies a first preset value of current to the stator winding coil at the first preset angle, and detects a first vibration value of the compressor. If the first vibration value is less than or equal to a first vibration threshold, applies a second preset value of current to the stator winding coil at the second preset angle, and detects a second vibration value of the compressor. If the second vibration value is less than or equal to a second vibration threshold, the compressor is controlled to start with a third preset value of current. The first preset value, the second preset value, and the third preset value increase sequentially, which can reasonably and scientifically control the start-up of the refrigerator compressor and extend its service life.

[0047] In some optional embodiments, the refrigerator 100 can achieve higher technical effects through further optimization and configuration of the above steps. The following describes in detail the control method of the refrigerator compressor of this embodiment with reference to an optional execution flow of this embodiment. This embodiment is only an example of the execution flow. In specific implementation, the execution order and operating conditions of some steps can be modified according to specific implementation requirements. Figure 2 This is a detailed flowchart of a refrigerator compressor control method according to an embodiment of the present invention. The refrigerator compressor control method includes the following steps:

[0048] Step S202: Detect the actual temperature of the refrigerator's storage space;

[0049] Step S204: Determine whether the actual temperature is greater than or equal to the power-on temperature. If yes, proceed to step S206; otherwise, proceed to step S202.

[0050] Step S206: Obtain the set first preset angle and second preset angle;

[0051] Step S208: A first preset value of current is applied to the stator winding coil of the compressor at a first preset angle, and a first vibration value is obtained by using a vibration sensor.

[0052] Step S210: Determine whether the first vibration value is less than or equal to the first vibration threshold. If yes, proceed to step S214; otherwise, proceed to step S212.

[0053] Step S212: Correct the first preset angle with a first preset increment and record the first number of corrections;

[0054] Step S214: A second preset value of current is applied to the stator winding coil at the second preset angle, and a second vibration value is obtained by using a vibration sensor;

[0055] Step S216: Determine whether the second vibration value is less than or equal to the second vibration threshold. If yes, proceed to step S220; otherwise, proceed to step S218.

[0056] Step S218: Correct the second preset angle with a second preset increment and record the second correction number;

[0057] Step S220: Control the compressor to start with the current at the third preset value;

[0058] Step S222: Determine whether the compressor is starting for the first time. If yes, proceed to step S224; otherwise, proceed to step S226.

[0059] Step S224: Control the compressor current to maintain the third preset value;

[0060] Step S226: Detect the third vibration value of the compressor;

[0061] Step S228: Determine whether the third vibration value is less than or equal to the third vibration threshold. If yes, proceed to step S224; otherwise, proceed to step S230.

[0062] Step S230: Change the current of the compressor to the fourth preset value.

[0063] In the above steps, step S202 detects the actual temperature of the refrigerator's storage space. Specifically, the actual temperature can be detected by a temperature sensor installed in the storage space. Step S204 determines whether the actual temperature is greater than or equal to the start-up temperature. If the result is yes, i.e., the actual temperature is greater than or equal to the start-up temperature, step S206 is executed to obtain the set first preset angle and second preset angle. If the result is no, i.e., the actual temperature is less than the start-up temperature, step S202 is executed to detect the actual temperature of the refrigerator's storage space.

[0064] Step S210 determines whether the first vibration value is less than or equal to the first vibration threshold. If the result is yes, i.e., the first vibration value is less than or equal to the first vibration threshold, step S214 is executed, applying a second preset value of current to the second preset angle of the stator winding coil, and detecting the second vibration value using a vibration sensor. If the result is no, i.e., the first vibration value is greater than the first vibration threshold, step S212 is executed to correct the first preset angle by a first preset increment and the first correction number is recorded.

[0065] Step S216 determines whether the second vibration value is less than or equal to the second vibration threshold. If the result is yes, that is, the second vibration value is less than or equal to the second vibration threshold, step S220 is executed to control the compressor to start with the current at the third preset value. If the result is no, that is, the second vibration value is greater than the second vibration threshold, step S218 is executed to correct the second preset angle with the second preset increment and record the second correction number.

[0066] It should be noted that after correcting the first preset angle with a first preset increment and recording the first correction count in step S212, if the corrected first vibration value is still greater than the first vibration threshold and the first correction count is less than the first threshold, correction can continue with the first preset increment and the first correction count can be updated. Correction with the first preset increment will cease once the first vibration value is less than or equal to the first vibration threshold or the first correction count reaches the first threshold. If the first vibration value is still greater than the first vibration threshold when the first correction count reaches the first threshold, the indicator light on the refrigerator will flash with a preset color and preset frequency.

[0067] After correcting the second preset angle with a second preset increment and recording the second correction count in step S218, if the corrected second vibration value is still greater than the second vibration threshold and the second correction count is less than the second threshold, correction can continue with the second preset increment and the second correction count can be updated. Correction with the second preset increment stops when the second vibration value is less than or equal to the second vibration threshold or the second correction count reaches the second threshold. If the second vibration value is still greater than the second vibration threshold when the second correction count reaches the second threshold, the indicator light on the refrigerator will flash with a preset color and preset frequency.

[0068] In one specific embodiment, the preset color can be red, and the preset frequency can be 1 time / s. It should be noted that the specific colors and values ​​of the preset colors and frequencies mentioned above are merely illustrative examples and not intended to limit the scope of the invention. In other embodiments, other colors or other values ​​can be used.

[0069] If the first vibration value is less than or equal to the first vibration threshold when the first correction count is less than the first threshold, or if the second vibration value is less than or equal to the second vibration threshold when the second correction count is less than the second threshold, after receiving the trigger signal to enter the query mode, the refrigerator's display device is controlled to display the angle value after the first preset angle and / or the second preset angle correction.

[0070] The process of receiving the trigger signal to enter query mode can be achieved by an engineer sending a trigger signal via the display device, which is then received by the refrigerator's control device. Query mode is entered only after the trigger signal is received, and the display device then displays the angle value corrected for the first preset angle and / or the second preset angle. In other words, under normal circumstances, the display device will not actively display the angle value corrected for the first preset angle and / or the second preset angle.

[0071] In other words, if the first vibration value is still greater than the first vibration threshold after the first correction count reaches the first threshold, or if the second vibration value is still greater than the second vibration threshold after the second correction count reaches the second threshold, the refrigerator's indicator light will flash at a preset color and preset frequency. If the first vibration value is less than or equal to the first vibration threshold after the first correction count is less than or equal to the first threshold, or if the second vibration value is less than or equal to the second vibration threshold after the second correction count is less than or equal to the second threshold, after receiving a trigger signal to enter query mode, the refrigerator's display device will display the angle value after the first preset angle and / or the angle value corrected for the second preset angle. By flashing the indicator light and outputting relevant information through the display device, engineers can effectively, quickly, and accurately understand the preset angle at which the compressor started successfully, and improve the convenience of troubleshooting compressor faults.

[0072] Step S222 determines whether the compressor is starting for the first time. If the result is yes, meaning the compressor is starting for the first time, step S224 is executed to maintain the compressor current at the third preset value. If the result is no, meaning the compressor is not starting for the first time, steps S226 and S228 are executed to detect the compressor's third vibration value and determine whether the third vibration value is less than or equal to the third vibration threshold. If the third vibration value is less than or equal to the third vibration threshold, step S224 is executed to maintain the compressor current at the third preset value. If the third vibration value is greater than the third vibration threshold, step S230 is executed to change the compressor current to the fourth preset value.

[0073] The third vibration value of the compressor is generated by controlling the compressor to start with a third preset current value. Furthermore, the fourth preset value is less than the third preset value. In one specific embodiment, the fourth preset value can be inversely proportional to the third vibration value; the larger the third vibration value, the smaller the fourth preset value. However, it is important to emphasize that the fourth preset value must always be greater than a lower limit current value to ensure normal compressor startup. Setting different starting currents according to the magnitude of the third vibration value can effectively improve the compressor's starting capability while preventing severe compressor vibration caused by using inappropriate starting currents for different loads.

[0074] Furthermore, after executing step S224 to maintain the compressor current at the third preset value, the process may further include: determining whether the compressor shutdown condition is met; and if so, controlling the compressor to stop; otherwise, controlling the compressor to continue running until the shutdown condition is met. The compressor shutdown condition is: the actual temperature is less than or equal to the shutdown temperature, where the shutdown temperature is lower than the startup temperature. That is, when the actual temperature is less than or equal to the shutdown temperature, the compressor is controlled to stop. When the actual temperature is greater than the shutdown temperature, the compressor is controlled to continue running until the shutdown condition is met.

[0075] The refrigerator compressor control method and refrigerator of this embodiment, when the first correction count reaches the first threshold, if the first vibration value is still greater than the first vibration threshold, or when the second correction count reaches the second threshold, if the second vibration value is still greater than the second vibration threshold, control the refrigerator's indicator light to flash with a preset color and preset frequency; when the first correction count is less than or equal to the first threshold, if the first vibration value is less than or equal to the first vibration threshold, or when the second correction count is less than or equal to the second threshold, if the second vibration value is less than or equal to the second vibration threshold, after receiving a trigger signal to enter the query mode, control the refrigerator's display device to display the angle value after the first preset angle and / or the second preset angle correction. By flashing the indicator light and outputting relevant information through the display device, engineers can effectively, quickly, and accurately understand the preset angle at which the compressor started successfully, and improve the convenience of querying compressor faults.

[0076] This embodiment also provides a refrigerator that can execute the compressor control method of any of the above embodiments to reasonably and scientifically control the start-up of the refrigerator compressor and extend its service life. Figure 5 This is a schematic diagram of the front structure of a refrigerator according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the rear structure of a refrigerator according to an embodiment of the present invention. Figure 5 and Figure 6 As shown, the refrigerator 100 generally includes a cabinet 110 and a door 120.

[0077] The cabinet 110 can internally define storage space 111 and compressor compartment 112. The compressor compartment 112 can be located below the storage space 111. The number and structure of the storage spaces 111 can be configured according to needs, and can be configured as refrigeration space, freezing space, variable temperature space, or preservation space depending on their purpose. Each storage space 111 can be divided into multiple storage areas by partitions, using shelves or drawers to store items.

[0078] Door 120 can be installed on the front surface of cabinet 110 to enclose storage space 111. Doors can be correspondingly installed to storage spaces 111, meaning each storage space 111 corresponds to one or more doors. The number of storage spaces 111 and doors, as well as the function of each storage space 111, can be selected based on specific circumstances. Doors can be pivotally installed on the front surface of cabinet 110, and can also be drawer-type opening mechanisms to achieve drawer-type storage spaces 111. Drawer-type storage spaces 111 often have metal slide rails to ensure smooth opening and closing and reduce noise. In this embodiment, door 120 can be equipped with a display device 116, which, as mentioned earlier, allows access to a query mode. Furthermore, if the first vibration value is less than or equal to the first vibration threshold when the first number of corrections is less than or equal to the first vibration threshold, or if the second vibration value is less than or equal to the second vibration threshold when the second number of corrections is less than or equal to the second vibration threshold, the display device 116 can display the angle value after the first preset angle and / or the angle value after the second preset angle correction after receiving the trigger signal to enter the query mode.

[0079] Refrigerator 100 may also include a refrigeration system, which can be a compression refrigeration system, including components such as an evaporator, fan, condenser, and compressor 113. The condenser and compressor 113 may be located within the compressor compartment 112. The refrigeration system provides different amounts of cooling to the refrigeration and freezing compartments, resulting in different temperatures within them. The temperature in the refrigeration compartment is generally between 2°C and 10°C, preferably between 3°C and 8°C. The temperature range in the freezing compartment is generally between -22°C and -14°C. Different types of food have different optimal storage temperatures, and therefore require different storage spaces 111. Fruits and vegetables are suitable for storage in the refrigeration compartment, while meat is suitable for storage in the freezing compartment.

[0080] Refrigerator 100 may also include a control device 200. Figure 7 This is a structural block diagram of a control device 200 for a refrigerator 100 according to an embodiment of the present invention. The control device 200 includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and when the control program 221 is executed by the processor 210, it is used to implement the control method of the refrigerator compressor of any of the above embodiments.

[0081] Processor 210 can be a central processing unit (CPU), a digital processing unit, etc. Processor 210 sends and receives data via a communication interface. Memory 220 stores the control program 221 executed by processor 210. Memory 220 can be any medium capable of carrying or storing desired program code in the form of instructions or data structures, and accessible by a computer; it can also be a combination of multiple memories 220. The control program 221 can be downloaded from a computer-readable storage medium to the corresponding computing / processing device or downloaded and installed to control device 200 via a network (e.g., the Internet, local area network, wide area network, and / or wireless network).

[0082] like Figure 2 As shown, the control device 200 can be installed on the back of the housing 110. The control device 200 can also be equipped with an indicator light 115. As mentioned earlier, if the first vibration value is still greater than the first vibration threshold after the first correction count reaches the first threshold, or if the second vibration value is still greater than the second vibration threshold after the second correction count reaches the second threshold, the indicator light 115 can flash with a preset color and preset frequency. The installation of the indicator light 115 and the display device 116 allows engineers to effectively, quickly, and accurately understand the preset angle at which the compressor 113 has successfully started, and improves the convenience of troubleshooting compressor 113 malfunctions.

[0083] Figure 8 This is a connection diagram of the control device 200 of a refrigerator 100 according to an embodiment of the present invention. Figure 9 This is a schematic diagram of the compressor 113 of a refrigerator 100 according to an embodiment of the present invention. Figure 8 As shown, the refrigerator 100 may also include a frequency converter board 114, meaning that the refrigerator 100 in this embodiment can be a frequency converter refrigerator. The control device 200 sends relevant control commands to the frequency converter board 114 via the Universal Asynchronous Receiver / Transmitter (UART) communication protocol. The frequency converter board 114 sends a Pulse Width Modulation (PWM) signal to the compressor 113, driving the compressor 113 to operate, thus achieving frequency conversion. Furthermore, the control device 200 can also send relevant control commands to the display device 116 via the UART communication protocol, so that the display device 116 displays relevant information.

[0084] like Figure 9As shown, the inverter board 114 can be installed on the compressor 113, and a vibration sensor 117 can be installed on the inverter board 114. This allows the vibration value of the compressor 113 to be detected by the vibration sensor 117, thus accurately understanding the vibration condition of the compressor 113. For example... Figure 8 and Figure 9 As shown, L between the inverter board 114 and the compressor 113 is the live wire (Line) and N is the neutral wire (Null).

[0085] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A method for controlling the compressor of a refrigerator, comprising: Under the condition that the compressor is turned on, the set first preset angle and second preset angle are obtained; A first preset value of current is applied to the first preset angle of the stator winding coil of the compressor, and the first vibration value of the compressor is detected. Determine whether the first vibration value is less than or equal to the first vibration threshold; If so, a second preset value of current is applied to the second preset angle of the stator winding coil, and the second vibration value of the compressor is detected; Determine whether the second vibration value is less than or equal to the second vibration threshold; as well as If so, the compressor is controlled to start with a current of a third preset value, wherein the first preset value, the second preset value, and the third preset value increase sequentially.

2. The method according to claim 1, wherein, The compressor's inverter board is equipped with a vibration sensor, and The step of detecting the first vibration value of the compressor includes: using the vibration sensor to detect the first vibration value; The step of detecting the second vibration value of the compressor includes: using the vibration sensor to detect the second vibration value.

3. The method according to claim 2, further comprising, after the step of controlling the compressor to start with a current of a third preset value: Determine whether the compressor is being powered on for the first time; as well as If so, control the current of the compressor to maintain the third preset value.

4. The method of claim 3, further comprising, after the step of controlling the current of the compressor to maintain the third preset value: Determine whether the compressor's shutdown conditions are met; as well as If so, control the compressor to stop. If not, control the compressor to continue running until the shutdown condition is met.

5. The method according to claim 3, wherein, When the compressor is not being started for the first time, the third vibration value of the compressor is detected. Determine whether the third vibration value is less than or equal to the third vibration threshold; and If so, control the compressor current to maintain the third preset value. If not, the current of the compressor is changed to a fourth preset value, wherein the fourth preset value is less than the third preset value.

6. The method according to claim 1, wherein, If the first vibration value is greater than the first vibration threshold, the first preset angle is corrected by a first preset increment and the first correction number is recorded. If the second vibration value is greater than the second vibration threshold, the second preset angle is corrected by the second preset increment and the second correction number is recorded.

7. The method according to claim 6, wherein, If the first vibration value is still greater than the first vibration threshold when the first correction count reaches the first threshold, or if the second vibration value is still greater than the second vibration threshold when the second correction count reaches the second threshold, the indicator light of the refrigerator is controlled to flash with a preset color and preset frequency.

8. The method according to claim 7, wherein, If the first vibration value is less than or equal to the first vibration threshold when the first correction count is less than or equal to the first vibration threshold, or if the second vibration value is less than or equal to the second vibration threshold when the second correction count is less than or equal to the second vibration threshold, After receiving a trigger signal to enter query mode, the refrigerator's display device is controlled to display the first preset angle and / or the angle value after correction of the second preset angle.

9. The method according to claim 4, wherein, The compressor is turned on when the actual temperature of the refrigerator's storage space is greater than or equal to the start-up temperature. The compressor is shut down under the following conditions: the actual temperature is less than or equal to the shutdown temperature, wherein the shutdown temperature is lower than the startup temperature.

10. A refrigerator, comprising a control device including a processor and a memory, wherein the memory stores a control program, and the control program, when executed by the processor, is used to implement a control method for the compressor of the refrigerator according to any one of claims 1 to 9.

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