CN110158264B - Method for controlling motor, frequency converter and clothes treatment device - Google Patents
Method for controlling motor, frequency converter and clothes treatment device Download PDFInfo
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- CN110158264B CN110158264B CN201810141461.9A CN201810141461A CN110158264B CN 110158264 B CN110158264 B CN 110158264B CN 201810141461 A CN201810141461 A CN 201810141461A CN 110158264 B CN110158264 B CN 110158264B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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Abstract
The embodiment of the invention provides a method for controlling a motor, a frequency converter and a clothes treatment device, and belongs to the field of household appliances. The method comprises the following steps: receiving a starting instruction; and controlling the motor to start according to the starting instruction, recording the action time of the motor after the motor is started, and controlling the starting or stopping of the motor according to the relation between the action time and the preset time. The frequency converter is applied to a clothes treatment device, and comprises: the communication module is used for receiving a starting instruction; a timing module for recording the action time of a motor in the clothes processing device; and a control module to: controlling the motor to start according to the starting instruction; and controlling the starting or stopping of the motor according to the relation between the action time and the preset time. The laundry treating apparatus includes the inverter. Therefore, the pause time of the motor is shortened, the effective time of the clothes processing device for washing clothes is prolonged, and the washing efficiency is improved.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a method for controlling a motor, a frequency converter and a clothes treatment device.
Background
With the increasing requirements on energy saving, noise and the like in the market, the variable frequency motor is widely used in the washing machine. Most of the mainstream washing machines in the market at present are frequency conversion washing machines, and compared with non-frequency conversion washing machines, the frequency conversion washing machines save electricity by more than 30% and reduce noise by more than 25%. At present, a frequency conversion washing machine (especially a pulsator washing machine) is controlled in a manner that a main control module of the washing machine transmits an instruction to a frequency converter, and the frequency converter controls a motor according to the instruction. Compared with a non-frequency-conversion washing machine, the frequency-conversion washing machine has the problem that the motor pause time is too long. The reason for this is mainly that the main control module controls the motor via the frequency converter, and the communication time is too long. The problem is reflected in the situations that the washing machine is weak in washing, the effective time for washing is insufficient, the washed clothes are not washed cleanly and the like.
Disclosure of Invention
An object of embodiments of the present invention is to provide a method of controlling a motor performed by a frequency converter in a laundry treatment device, a frequency converter, a laundry treatment device, and a machine-readable storage medium, which can achieve shortening of a pause time of a motor, increase of an effective time for the laundry treatment device to wash laundry, and increase of washing efficiency.
In order to achieve the above object, an aspect of embodiments of the present invention provides a method of controlling a motor performed by an inverter within a laundry treating apparatus, the method including: receiving a starting instruction; and controlling the motor to start according to the starting instruction, recording the action time of the motor after the motor is started, and controlling the starting or stopping of the motor according to the relation between the action time and the preset time.
Optionally, the method further comprises: receiving the weight of the laundry to be washed in the laundry treating device; and adjusting the preset time according to the weight so that: under the condition that the weight is the first weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration between the forward rotation action and the reverse rotation action of the motor are/is respectively a first preset forward rotation duration, a first preset reverse rotation duration and/or a first preset pause duration; and under the condition that the weight is a second weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration are respectively a second preset forward rotation duration, a second preset reverse rotation duration and/or a second preset pause duration, wherein the first weight is smaller than the second weight, the first preset forward rotation duration is smaller than the second preset forward rotation duration, the first preset reverse rotation duration is smaller than the second preset reverse rotation duration, and the first preset pause duration is smaller than the second preset pause duration.
Optionally, the adjusting the preset time according to the weight includes: adjusting the preset pause duration to a third preset pause duration when the ratio of the weight to the capacity of the laundry treating device is less than one third; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than or equal to one third and less than or equal to two thirds, adjusting the preset pause duration to a fourth preset pause duration; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than two thirds, adjusting the preset pause duration to a fifth preset pause duration; wherein the third preset pause duration and the fifth preset pause duration are related to the capacity of the laundry treatment apparatus, the fourth preset pause duration is a constant value, and the third preset pause duration, the fourth preset pause duration and the fifth preset pause duration sequentially follow from small to large: the third preset pause duration, the fourth preset pause duration, and the fifth preset pause duration.
Optionally, the adjusting the preset time according to the weight includes: when the ratio of the weight to the capacity of the clothes treatment device is less than one third, adjusting the preset forward rotation duration time to be a third preset forward rotation duration time; and/or when the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset forward rotation duration to be a fourth preset forward rotation duration; and/or when the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset forward rotation duration time to be a fifth preset forward rotation duration time; wherein the third preset forward rotation duration and the fourth preset forward rotation duration are constant values, the fifth preset forward rotation duration is related to the capacity of the laundry treatment device, and the third preset forward rotation duration or the fourth preset forward rotation duration and the fifth preset forward rotation duration sequentially follow from small to large: the third preset forward rotation duration time or the fourth preset forward rotation duration time or the fifth preset forward rotation duration time.
Optionally, the adjusting the preset time according to the weight includes: adjusting the preset inversion duration time to a third preset inversion duration time when a ratio of the weight to a capacity of the laundry treating apparatus is less than one-third; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than or equal to one third and less than or equal to two thirds, adjusting the preset inversion duration to a fourth preset inversion duration; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than two-thirds, adjusting the preset reversal duration to a fifth preset reversal duration; wherein, the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration are related to the capacity of the laundry treatment device, and the sequence from small to large of the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration is in sequence: the third preset inversion duration, the fourth preset inversion duration, and the fifth preset inversion duration.
Optionally, the action of the motor includes forward rotation and reverse rotation, the forward rotation and the reverse rotation are respectively controlled by a forward rotation control module and a reverse rotation control module, the action time includes forward rotation duration, reverse rotation duration and pause duration between the forward rotation action and the reverse rotation action, the preset time includes preset forward rotation duration, preset reverse rotation duration and preset pause duration, and controlling the starting or pausing of the motor according to the relationship between the action time and the preset time includes: after a starting instruction is received, the motor is controlled to rotate forwards through the forward rotation control module; controlling the motor to pause when the forward rotation duration time reaches the preset forward rotation duration time; and under the condition that the pause duration reaches the preset pause duration, controlling the motor to reversely rotate through the reverse rotation control module.
Another aspect of an embodiment of the present invention provides a frequency converter applied in a laundry treating apparatus, the frequency converter including: the communication module is used for receiving a starting instruction; a timing module for recording the action time of a motor in the clothes processing device; and a control module to: controlling the motor to start according to the starting instruction; and controlling the starting or stopping of the motor according to the relation between the action time and the preset time.
Optionally, the communication module is further configured to receive a weight of laundry to be washed in the laundry treatment device; the control module is further configured to adjust the preset time according to the weight such that: under the condition that the weight is the first weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration between the forward rotation action and the reverse rotation action of the motor are/is respectively a first preset forward rotation duration, a first preset reverse rotation duration and/or a first preset pause duration; and under the condition that the weight is a second weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration are respectively a second preset forward rotation duration, a second preset reverse rotation duration and/or a second preset pause duration, wherein the first weight is smaller than the second weight, the first preset forward rotation duration is smaller than the second preset forward rotation duration, the first preset reverse rotation duration is smaller than the second preset reverse rotation duration, and the first preset pause duration is smaller than the second preset pause duration.
Optionally, the adjusting, by the control module, the preset time according to the weight includes: adjusting the preset pause duration to a third preset pause duration when the ratio of the weight to the capacity of the laundry treating device is less than one third; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than or equal to one third and less than or equal to two thirds, adjusting the preset pause duration to a fourth preset pause duration; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than two thirds, adjusting the preset pause duration to a fifth preset pause duration; wherein the third preset pause duration and the fifth preset pause duration are related to the capacity of the laundry treatment apparatus, the fourth preset pause duration is a constant value, and the third preset pause duration, the fourth preset pause duration and the fifth preset pause duration sequentially follow from small to large: the third preset pause duration, the fourth preset pause duration, and the fifth preset pause duration.
Optionally, the adjusting, by the control module, the preset time according to the weight includes: when the ratio of the weight to the capacity of the clothes treatment device is less than one third, adjusting the preset forward rotation duration time to be a third preset forward rotation duration time; and/or when the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset forward rotation duration to be a fourth preset forward rotation duration; and/or when the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset forward rotation duration time to be a fifth preset forward rotation duration time; wherein the third preset forward rotation duration and the fourth preset forward rotation duration are constant values, the fifth preset forward rotation duration is related to the capacity of the laundry treatment device, and the third preset forward rotation duration or the fourth preset forward rotation duration and the fifth preset forward rotation duration sequentially follow from small to large: the third preset forward rotation duration time or the fourth preset forward rotation duration time or the fifth preset forward rotation duration time.
Optionally, the adjusting, by the control module, the preset time according to the weight includes: adjusting the preset inversion duration time to a third preset inversion duration time when a ratio of the weight to a capacity of the laundry treating apparatus is less than one-third; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than or equal to one third and less than or equal to two thirds, adjusting the preset inversion duration to a fourth preset inversion duration; and/or when the ratio of the weight to the capacity of the laundry treatment apparatus is greater than two-thirds, adjusting the preset reversal duration to a fifth preset reversal duration; wherein, the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration are related to the capacity of the laundry treatment device, and the sequence from small to large of the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration is in sequence: the third preset inversion duration, the fourth preset inversion duration, and the fifth preset inversion duration.
Optionally, the action of the motor includes forward rotation and reverse rotation, the control module includes a forward rotation control module and a reverse rotation control module, the forward rotation control module and the reverse rotation control module are respectively configured to control the forward rotation and the reverse rotation of the motor, the action time includes a forward rotation duration, a reverse rotation duration and a pause time between the forward rotation action and the reverse rotation action, the preset time includes a preset forward rotation duration, a preset reverse rotation duration and a preset pause duration, and the control module controls the start or pause of the motor according to a relationship between the action time and the preset time includes: after a starting instruction is received, the motor is controlled to rotate forwards through the forward rotation control module; controlling the motor to pause when the forward rotation duration time reaches the preset forward rotation duration time; and under the condition that the pause duration time reaches the preset pause duration time, controlling the motor to reversely rotate through the reverse rotation control module.
In addition, another aspect of the embodiments of the present invention provides a laundry treating apparatus including the frequency converter described above.
Furthermore, another aspect of the embodiments of the present invention provides a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-mentioned method.
Through the technical scheme, the frequency converter controls the starting or stopping of the motor in the process of washing clothes by the clothes treatment device, the communication process between the main control module of the clothes treatment device and the frequency converter is omitted, and the purpose of shortening the stopping time of the motor is achieved, so that the effective time of the clothes treatment device for washing clothes is prolonged, and the washing efficiency is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart of a method of controlling a motor performed by an inverter in a laundry treating apparatus according to an embodiment of the present invention;
fig. 2 is a flowchart of a method of controlling a motor performed by an inverter in a laundry treating apparatus according to another embodiment of the present invention;
fig. 3 is a schematic diagram of a logic executed by an inverter of a laundry treating apparatus according to another embodiment of the present invention to control a motor; and
fig. 4 is a block diagram of a frequency converter according to another embodiment of the present invention.
Description of the reference numerals
1 communication module 2 control module
3 timing module
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
An aspect of embodiments of the present invention provides a method of controlling a motor performed by an inverter within a laundry treating apparatus. Fig. 1 is a flowchart of a method for controlling a motor performed by an inverter in a laundry treating apparatus according to an embodiment of the present invention. As shown in fig. 1, the method includes the following steps.
In step S10, a start instruction is received. Wherein, the starting instruction can be sent by a main control module of the clothes processing device. For example, after the interaction module of the clothes treatment device receives an operation instruction of a user, the operation instruction is transmitted to the main control module, and the main control module transmits a starting instruction to the frequency converter.
In step S11, the motor is controlled to start according to the start command, the action time of the motor is recorded after the motor is started, and the motor is controlled to start or stop according to the relation between the action time and the preset time. In the embodiment of the present invention, the controlling of the start of the motor may be controlling the motor to rotate forward or backward. Optionally, after receiving the start instruction, controlling the motor to rotate forwards or backwards is related to the start instruction. Alternatively, it may be preset that the motor is controlled to rotate forward first or the motor is controlled to rotate backward first when the laundry treating apparatus is started to be used. After the motor is started, recording the time of the motor executing the action, wherein the action of the motor comprises forward rotation, reverse rotation and pause between the forward rotation and the reverse rotation, and correspondingly, the action time of the motor comprises forward rotation duration, reverse rotation duration and pause duration. The motor executes each action, correspondingly, the time of the motor executing the action is recorded, the recorded time is compared with the corresponding preset time, when the time of the motor executing the action reaches the corresponding preset time, the motor is controlled to stop the current action, the motor is controlled to execute the next action, the time of the motor executing the next action is correspondingly recorded, the recorded time of the motor executing the next action is compared with the corresponding preset time, and the steps are repeated until an instruction for controlling the motor to stop is received, so that the washing process is completed. For example, the motor is controlled to perform the forward rotation action, the forward rotation duration of the forward rotation action performed by the motor is recorded, the recorded forward rotation duration is compared with the preset forward rotation duration, when the preset forward rotation duration is reached, the motor is controlled to pause, the pause duration of the motor is recorded, the pause duration is compared with the preset pause duration, when the pause duration reaches the preset pause duration, the motor is controlled to rotate reversely, the reverse rotation duration is recorded, the reverse rotation duration is compared with the preset reverse rotation duration, when the reverse rotation duration reaches the preset reverse rotation duration, the motor is controlled to pause, the pause duration of the motor is recorded, the pause duration and the preset pause duration are recorded, when the pause duration reaches the preset pause duration, the motor is controlled to rotate forwardly, and the process is repeated until the command for controlling the motor to stop is received, the washing process is completed.
In the process of washing clothes by the clothes treatment device, the frequency converter controls the starting or pausing of the motor, the communication process between the main control module of the clothes treatment device and the frequency converter is omitted, and the purpose of shortening the pausing time of the motor is achieved, so that the effective time of the clothes treatment device for washing clothes is prolonged, and the washing efficiency is improved. In addition, the frequency converter controls the starting or stopping of the motor, so that the function of the frequency converter is enhanced, the cost is not increased, and the effect of improving the washing efficiency can be achieved.
Fig. 2 is a flowchart of a method of controlling a motor performed by an inverter in a laundry treating apparatus according to another embodiment of the present invention. The difference from the method shown in fig. 1 is that the method shown in fig. 2 further comprises the following steps.
In step S21, the weight of the laundry to be washed in the laundry treating device is received. Wherein, the weight of the clothes to be washed can be transmitted to the frequency converter by a weighing module arranged in the clothes treatment device.
In step S22, the preset time is adjusted according to the weight such that: under the condition that the weight is the first weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration between the forward rotation action and the reverse rotation action of the motor are/is respectively a first preset forward rotation duration, a first preset reverse rotation duration and/or a first preset pause duration; when the weight is the second weight, presetting forward rotation duration, reverse rotation duration and/or preset pause duration as second preset forward rotation duration, second preset reverse rotation duration and/or second preset pause duration respectively; the first weight is smaller than the second weight, the first preset forward rotation duration is smaller than the second preset forward rotation duration, the first preset reverse rotation duration is smaller than the second preset reverse rotation duration, and the first preset pause duration is smaller than the second preset pause duration.
The preset time is adjusted according to the weight of the clothes to be washed, and the action time of the motor is reasonably distributed, so that the control of the motor is in a proper state, the distribution of the washing time is perfected, and the washing effect is improved. In addition, the barrel collision can be avoided, and water and electricity are saved. Therefore, the control of the motor is more intelligent.
In addition, it should be noted that fig. 2 only illustrates one case of the method, and the sequence between the steps is not used to limit the present invention. For example, the order between the steps of the method shown in fig. 2 may also be adjusted to: the method comprises the steps of receiving the weight of clothes to be washed, adjusting preset time according to the weight, receiving a starting instruction, and controlling the motor to be started according to the starting instruction.
The preset pause duration, the preset forward rotation duration, and/or the preset reverse rotation duration may be experimentally obtained at a design and manufacturing stage of the laundry treatment apparatus, and set in the frequency converter when designing the laundry treatment apparatus. Specifically, in the experiment process, different washing programs and washing conditions of different loads can be selected by simulating the washing process of the user, and the preset pause duration, the preset forward rotation duration and/or the preset reverse rotation duration can be obtained through a large amount of experiment data. For example, the experimental data obtained in the experiment is processed in a linear regression manner, so as to obtain the preset pause duration, the preset forward rotation duration, and/or the preset reverse rotation duration. In addition, during the experiment, it was also found that when the weight of the laundry to be washed is lower than the capacity value M of the laundry treating apparatus0One third of the preset pause duration, the smaller the preset pause duration, the better; when the ratio of the weight to the volume value is one third to two thirds, the preset pause duration is preferably maintained at a certain constant value; when the ratio of the weight to the capacity value is more than two thirds, the longer the preset pause duration is, the better, otherwise, the winding rate is too high, the motor load is too large, and the motor is easy to damage.
Optionally, in an embodiment of the present invention, adjusting the preset time according to the weight includes: when the ratio of the weight to the capacity of the laundry treating apparatus is less thanWhen one third of the preset pause duration time is up to the third preset pause duration time; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset pause duration to be a fourth preset pause duration; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than two-thirds, adjusting the preset pause duration to be a fifth preset pause duration; wherein the third and fifth preset pause durations are related to the capacity of the laundry treatment device, the fourth preset pause duration is a constant value, and the third, fourth and fifth preset pause durations are in order from small to large: a third preset pause duration, a fourth preset pause duration, and a fifth preset pause duration. Optionally, the third preset pause duration is a ratio of the capacity value of the laundry treating device to the first preset value. Optionally, the fifth preset pause duration is a product of the capacity value and the second preset value. Optionally, the first preset value is the same as the second preset value. Optionally, the third predetermined pause duration is
A fifth predetermined pause duration of M0X 4, unit 0.1s, M0Representing the capacity value. Optionally, the fourth preset pause duration is 2 in units of 0.1 s.
Therefore, the preset pause duration time is adjusted according to the weight of the clothes to be washed, so that the pause duration time is prolonged under the condition that the clothes to be washed are heavier, and the motor damage caused by overhigh winding rate and overlarge motor load is avoided.
Optionally, in an embodiment of the present invention, adjusting the preset time according to the weight includes: when the ratio of the weight to the capacity of the clothes treatment device is less than one third, adjusting the preset forward rotation duration time to be a third preset forward rotation duration time; and/or when the ratio of the weight to the capacity of the clothes treatment device is more than or equal to one third and less than or equal to two thirds, adjusting the preset forward rotation duration to be a fourth forward rotation durationPresetting forward rotation duration; and/or when the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset forward rotation duration time to be a fifth preset forward rotation duration time; wherein, the third preset corotation duration and the fourth preset corotation duration are constant values, the fifth preset corotation duration is related to the capacity of the clothes treatment device, and the sequence from small to large of the third preset corotation duration or the fourth preset corotation duration and the fifth preset corotation duration is as follows: the third preset forward rotation duration time or the fourth preset forward rotation duration time and the fifth preset forward rotation duration time. Optionally, the third preset forward rotation is continuously applied for the same duration as the fourth preset forward rotation. Optionally, the third preset forward rotation duration and the fourth preset forward rotation duration are 12, and the unit is 0.1 s. Optionally, the fifth preset forward rotation duration is a sum of the capacity value and the third preset value. Optionally, the fifth predetermined forward rotation duration is 24+ M0Unit is 0.1s, M0Representing the capacity value.
Optionally, in an embodiment of the present invention, adjusting the preset time according to the weight includes: when the ratio of the weight to the capacity of the laundry treating device is less than one third, adjusting the preset reverse rotation duration time to a third preset reverse rotation duration time; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset reversal duration time to be a fourth preset reversal duration time; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than two-thirds, adjusting the preset reverse rotation duration time to be a fifth preset reverse rotation duration time; wherein, the third preset reversal duration, the fourth preset reversal duration and the fifth preset reversal duration are related to the capacity of the laundry treatment device, and the sequence from small to large of the third preset reversal duration, the fourth preset reversal duration and the fifth preset reversal duration is in sequence: a third preset inversion duration, a fourth preset inversion duration, and a fifth preset inversion duration. Optionally, the third preset inversion duration is a difference between a fourth preset value and a ratio of the capacity value to a fifth preset value, wherein the fourth preset value is greater than the capacity value and the third preset valueAnd the ratio of five preset values. Optionally, the third preset inversion duration is
The unit is 0.1s, M0Representing the capacity value. Optionally, the fourth preset inversion duration is a sum of the sixth preset value and a ratio of the capacity value to the seventh preset value. Optionally, the fourth preset inversion duration is
The unit is 0.1s, M0Representing the capacity value. Optionally, the fifth preset inversion duration is a sum of the eighth preset value and the capacity value. Optionally, the fifth preset inversion duration is 24+ M0Unit is 0.1s, M0Representing the capacity value.
Optionally, in the embodiment of the present invention, the preset pause duration, the preset forward rotation duration, and the preset reverse rotation duration may be set according to the contents shown in table 1. Wherein, in Table 1, the laundry weight is a ratio of the weight of the laundry to be washed to a capacity value of the laundry treating apparatus, T0Indicating a preset pause duration, T1Indicates a preset forward rotation duration, T2Indicating a preset inversion duration, M0Representing a capacity value of the laundry treating apparatus.
Optionally, in an embodiment of the present invention, the action of the motor includes forward rotation and reverse rotation, the forward rotation and the reverse rotation are respectively controlled by the forward rotation control module and the reverse rotation control module, the action time includes forward rotation duration, reverse rotation duration, and pause duration between the forward rotation action and the reverse rotation action, the preset time includes preset forward rotation duration, preset reverse rotation duration, and preset pause duration, and controlling the starting or pausing of the motor according to a relationship between the action time and the preset time includes: after a starting instruction is received, the motor is controlled to rotate forwards through the forward rotation control module, and the motor is controlled to pause when the forward rotation duration time reaches a preset forward rotation duration time; and under the condition that the pause duration reaches the preset pause duration, controlling the motor to reversely rotate through the reverse rotation control module. The control of the pause duration of the motor can be controlled by a control module of the previous action or a control module of the next action after pausing.
For example, after a starting instruction is received, the motor is controlled to rotate forwards through the forward rotation control module, the timing module records forward rotation duration time, and the forward rotation duration time is compared with preset forward rotation duration time through the forward rotation control module; when the forward rotation duration time reaches the preset forward rotation duration time, the forward rotation control module controls the motor to stop pausing, the timing module records the pausing duration time, and the forward rotation control module compares the pausing duration time with the preset pausing duration time; when the pause duration reaches the preset pause duration, the forward rotation control module transmits an instruction to the reverse rotation control module so that the reverse rotation control module controls the motor to reversely rotate, the timing module records the reverse rotation duration, and the reverse rotation control module compares the reverse rotation duration with the preset reverse rotation duration; when the reversal duration time reaches the preset reversal duration time, the reversal control module controls the motor to stop pausing, the timing module records the pausing duration time, and the reversal control module compares the pausing duration time with the preset pausing duration time; when the pause duration reaches the preset pause duration, the reverse rotation control module transmits an instruction to the forward rotation control module so that the forward rotation control module controls the motor to rotate forward, and the operation is circulated until the washing process is finished.
In addition, in the process of switching between the forward rotation action and the reverse rotation action of the motor, after the motor executes the forward rotation action, the forward rotation control module controls the motor to pause and transmits a command to the reverse rotation control module, and the reverse rotation control module compares the pause duration with the preset pause duration; when the pause duration reaches the preset pause duration, the reverse rotation control module controls the motor to rotate reversely, and controls the motor to pause and transmit an instruction to the forward rotation control module under the condition that the reverse rotation duration reaches the preset reverse rotation duration, and the process is circulated until the washing process is finished.
Fig. 3 is a schematic diagram of a logic executed by an inverter in a laundry treating apparatus according to another embodiment of the present invention. The user places the clothes in the clothes treatment device, inputs an operation instruction through the interaction module, transmits the operation instruction to the main control module of the clothes treatment device, and the main control module transmits a starting instruction to the frequency converter. The weighing module in the clothes processing device obtains the weight of clothes, transmits the obtained weight to the frequency converter, and the frequency converter adjusts the preset pause duration T according to the weight0Presetting forward rotation duration time T1Presetting a reversal duration time T2. After the time is adjusted, a forward rotation control module in the frequency converter controls the motor to rotate forwards according to a starting instruction, a timing module records forward rotation duration, and the forward rotation control module records the recorded forward rotation duration and preset forward rotation duration T1Comparing; when the forward rotation duration time reaches the preset forward rotation duration time T1Then, the forward rotation control module controls the motor to pause, the timing module records the pause duration, and the forward rotation control module controls the pause duration and the preset pause duration T0Comparing; when the pause duration reaches the preset pause duration T0When the motor is started, the forward rotation control module transmits an instruction to the reverse rotation control module so that the reverse rotation control module controls the motor to rotate reversely, the timing module records reverse rotation duration time, and the reverse rotation control module enables the reverse rotation duration time and preset reverse rotation duration time T to be equal2Comparing; when the reversal duration time reaches the preset reversal duration time T2Then, the inversion control module judges whether the secondary washing is finished, specifically, whether the accumulated time of the recorded time reaches the preset washing time is judged, the washing is finished when the preset washing time is reached, and the washing is not finished when the accumulated time does not reach the preset washing time; in case the washing is completed, the washing is finished; under the condition that washing is not finished, the reverse rotation control module controls the motor to pause, the timing module records pause duration, and the reverse rotation control module enables the pause duration and preset pause duration T0Comparing; when the pause duration reaches the preset pause duration T0When the control module is in normal rotation, the reverse rotation control module transmits an instruction to the forward rotation control moduleAnd (4) entering the next circulation, and circulating the circulation until the washing is finished.
In addition, the logic diagram shown in fig. 3 may be adjusted to change the order of controlling the forward rotation and the reverse rotation of the motor, which also belongs to the protection scope of the embodiment of the present invention. The motor is controlled to rotate reversely, and then the motor is controlled to pause and rotate forwards, the forward rotation control module judges whether washing is finished or not, washing is finished if washing is finished, the forward rotation control module controls the motor to pause if washing is not finished, then the next cycle process is started, and the cycle is repeated until washing is finished.
Accordingly, another aspect of the embodiments of the present invention provides a frequency converter, which is configured to be applied in a clothes treatment apparatus. Fig. 4 is a block diagram of a frequency converter according to another embodiment of the present invention. As shown in fig. 4, the frequency converter includes a communication module 1, a control module 2, and a timing module 3. The communication module 1 is used for receiving a starting instruction; the timing module 2 is used for recording the action time of a motor in the clothes treatment device; the control module 3 is used for controlling the motor to start according to the starting instruction and controlling the motor to start or stop according to the relation between the action time and the preset time.
In the process of washing clothes by the clothes treatment device, the frequency converter controls the starting or pausing of the motor, the communication process between the main control module of the clothes treatment device and the frequency converter is omitted, and the purpose of shortening the pausing time of the motor is achieved, so that the effective time of the clothes treatment device for washing clothes is prolonged, and the washing efficiency is improved. In addition, the frequency converter controls the starting or stopping of the motor, so that the function of the frequency converter is enhanced, the cost is not increased, and the effect of improving the washing efficiency can be achieved.
Optionally, in an embodiment of the present invention, the communication module is further configured to receive a weight of laundry to be washed in the laundry treatment device; the control module is further configured to adjust the preset time according to the weight such that: under the condition that the weight is the first weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration between the forward rotation action and the reverse rotation action of the motor are/is respectively a first preset forward rotation duration, a first preset reverse rotation duration and/or a first preset pause duration; and under the condition that the weight is the second weight, the preset forward rotation duration, the preset reverse rotation duration and/or the preset pause duration are respectively the second preset forward rotation duration, the second preset reverse rotation duration and/or the second preset pause duration, wherein the first weight is smaller than the second weight, the first preset forward rotation duration is smaller than the second preset forward rotation duration, the first preset reverse rotation duration is smaller than the second preset reverse rotation duration, and the first preset pause duration is smaller than the second preset pause duration.
Optionally, in an embodiment of the present invention, the adjusting, by the control module, the preset time according to the weight includes: adjusting the preset pause duration to a third preset pause duration when the ratio of the weight to the capacity of the laundry treating device is less than one third; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset pause duration to be a fourth preset pause duration; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than two-thirds, adjusting the preset pause duration to be a fifth preset pause duration; wherein the third and fifth preset pause durations are related to the capacity of the laundry treatment device, the fourth preset pause duration is a constant value, and the third, fourth and fifth preset pause durations are in order from small to large: a third preset pause duration, a fourth preset pause duration, and a fifth preset pause duration.
Optionally, in the embodiment of the present invention, the adjusting the preset time by the control module according to the weight includes: when the ratio of the weight to the capacity of the clothes treatment device is less than one third, adjusting the preset forward rotation duration time to be a third preset forward rotation duration time; and/or when the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset forward rotation duration to be a fourth preset forward rotation duration; and/or when the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset forward rotation duration time to be a fifth preset forward rotation duration time; wherein, the third preset corotation duration and the fourth preset corotation duration are constant values, the fifth preset corotation duration is related to the capacity of the clothes treatment device, and the sequence from small to large of the third preset corotation duration or the fourth preset corotation duration and the fifth preset corotation duration is as follows: the third preset forward rotation duration time or the fourth preset forward rotation duration time and the fifth preset forward rotation duration time.
Optionally, in the embodiment of the present invention, the adjusting the preset time by the control module according to the weight includes: when the ratio of the weight to the capacity of the laundry treating device is less than one third, adjusting the preset reverse rotation duration time to a third preset reverse rotation duration time; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset reversal duration time to be a fourth preset reversal duration time; and/or when the ratio of the weight to the capacity of the laundry treatment device is greater than two-thirds, adjusting the preset reverse rotation duration time to be a fifth preset reverse rotation duration time; wherein, the third preset reversal duration, the fourth preset reversal duration and the fifth preset reversal duration are related to the capacity of the laundry treatment device, and the sequence from small to large of the third preset reversal duration, the fourth preset reversal duration and the fifth preset reversal duration is in sequence: a third preset inversion duration, a fourth preset inversion duration, and a fifth preset inversion duration.
Optionally, in an embodiment of the present invention, the action of the motor includes forward rotation and reverse rotation, the control module includes a forward rotation control module and a reverse rotation control module, the forward rotation control module and the reverse rotation control module are respectively configured to control forward rotation and reverse rotation of the motor, the action time includes a forward rotation duration, a reverse rotation duration, and a pause time between the forward rotation action and the reverse rotation action, the preset time includes a preset forward rotation duration, a preset reverse rotation duration, and a preset pause duration, and the control module controls starting or pausing of the motor according to a relationship between the action time and the preset time includes: after receiving a starting instruction, controlling the motor to rotate forwards through a forward rotation control module; controlling the motor to pause when the forward rotation duration reaches the preset forward rotation duration; and under the condition that the pause duration time reaches a preset pause duration time, controlling the motor to rotate reversely through a reverse rotation control module.
The specific working principle and benefits of the frequency converter provided by the embodiment of the present invention are similar to those of the method for controlling a motor executed by the frequency converter in a clothes treatment device provided by the above-mentioned embodiment of the present invention, and will not be described again here.
Further, another aspect of the embodiments of the present invention provides a laundry treating apparatus including the frequency converter described in the above embodiments.
Optionally, in an embodiment of the present invention, the laundry treating device further includes a weighing module for acquiring a weight of laundry to be washed in the laundry treating device.
In addition, another aspect of the embodiments of the present invention also provides a machine-readable storage medium, which stores instructions for causing a machine to execute the method described in the above embodiments.
In summary, the frequency converter controls the start or pause of the motor, and in the process of washing the clothes by the clothes treatment device, the communication process between the main control module of the clothes treatment device and the frequency converter is omitted, so that the pause time of the motor is shortened, the effective time of the clothes treatment device for washing the clothes is prolonged, and the washing efficiency is improved. In addition, the frequency converter controls the starting or stopping of the motor, so that the function of the frequency converter is enhanced, the cost is not increased, and the effect of improving the washing efficiency can be achieved. The preset time is adjusted according to the weight of the clothes to be washed, and the action time of the motor is reasonably distributed, so that the control of the motor is in a proper state, the distribution of the washing time is perfected, and the washing effect is improved. In addition, the barrel collision can be avoided, and water and electricity are saved. Therefore, the control of the motor is more intelligent. In addition, the preset pause duration time is adjusted according to the weight of the clothes to be washed, so that the pause duration time is prolonged under the condition that the clothes to be washed are heavy, and the motor damage caused by overhigh winding rate and overlarge motor load is avoided.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (14)
1. A method of controlling a motor performed by an inverter within a laundry treating apparatus, the method comprising:
receiving a starting instruction; and
controlling the motor to start according to the starting instruction, recording the action time of the motor after the motor is started, controlling the starting or stopping of the motor according to the relation between the action time and the preset time,
the method comprises the following steps that the preset time comprises preset starting duration and preset pause duration, the action of the motor comprises forward rotation and reverse rotation, the action time comprises the forward rotation duration, the reverse rotation duration and the pause duration between the forward rotation action and the reverse rotation action, the preset starting duration comprises the preset forward rotation duration and the preset reverse rotation duration, and the method further comprises the following steps:
receiving the weight of the laundry to be washed in the laundry treating device; and
in the washing process, adjusting the preset time according to the weight so that:
the preset pause duration is a first preset pause duration under the condition that the weight is a first weight;
the preset pause duration is a second preset pause duration in the case that the weight is a second weight,
wherein the first weight is less than the second weight and the first preset dwell duration is less than the second preset dwell duration.
2. The method of claim 1, wherein controlling the motor to start comprises controlling the motor to rotate in a forward or reverse direction, the preset start duration comprises a preset forward rotation duration or a preset reverse rotation duration, the method further comprising:
adjusting the preset time according to the weight so that:
under the condition that the weight is the first weight, the preset forward rotation duration and/or the preset reverse rotation duration are/is respectively a first preset forward rotation duration and/or a first preset reverse rotation duration;
when the weight is a second weight, the preset forward rotation duration and/or the preset reverse rotation duration are/is a second preset forward rotation duration and/or a second preset reverse rotation duration respectively,
the first weight is smaller than the second weight, the first preset forward rotation duration is smaller than the second preset forward rotation duration, and the first preset reverse rotation duration is smaller than the second preset reverse rotation duration.
3. The method of claim 1, wherein said adjusting said preset time according to said weight comprises:
adjusting the preset pause duration to a third preset pause duration when the ratio of the weight to the capacity of the laundry treating device is less than one third; and/or
When the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset pause duration to be a fourth preset pause duration; and/or
Adjusting the preset pause duration to a fifth preset pause duration when the ratio of the weight to the capacity of the laundry treating device is greater than two-thirds;
wherein the third preset pause duration and the fifth preset pause duration are related to the capacity of the laundry treatment apparatus, the fourth preset pause duration is a constant value, and the third preset pause duration, the fourth preset pause duration and the fifth preset pause duration sequentially follow from small to large: the third preset pause duration, the fourth preset pause duration, and the fifth preset pause duration.
4. The method of claim 2, wherein said adjusting said preset time according to said weight comprises:
when the ratio of the weight to the capacity of the clothes treatment device is less than one third, adjusting the preset forward rotation duration time to be a third preset forward rotation duration time; and/or
When the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset forward rotation duration time to be a fourth preset forward rotation duration time; and/or
When the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset forward rotation duration time to be a fifth preset forward rotation duration time;
wherein the third preset forward rotation duration and the fourth preset forward rotation duration are constant values, the fifth preset forward rotation duration is related to the capacity of the laundry treatment device, and the third preset forward rotation duration or the fourth preset forward rotation duration and the fifth preset forward rotation duration sequentially follow from small to large: the third preset forward rotation duration time or the fourth preset forward rotation duration time or the fifth preset forward rotation duration time.
5. The method of claim 2, wherein said adjusting said preset time according to said weight comprises:
adjusting the preset inversion duration time to a third preset inversion duration time when a ratio of the weight to a capacity of the laundry treating apparatus is less than one-third; and/or
When the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset reverse rotation duration time to be a fourth preset reverse rotation duration time; and/or
When the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset reverse rotation duration time to be a fifth preset reverse rotation duration time;
wherein, the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration are related to the capacity of the laundry treatment device, and the sequence from small to large of the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration is in sequence: the third preset inversion duration, the fourth preset inversion duration, and the fifth preset inversion duration.
6. The method according to claim 1, wherein the forward rotation and the reverse rotation are respectively controlled by a forward rotation control module and a reverse rotation control module, and the controlling the starting or stopping of the motor according to the relation between the action time and a preset time comprises the following steps:
after a starting instruction is received, the motor is controlled to rotate forwards through the forward rotation control module;
controlling the motor to pause when the forward rotation duration time reaches the preset forward rotation duration time; and
and under the condition that the pause duration reaches the preset pause duration, controlling the motor to reversely rotate through the reverse rotation control module.
7. An inverter applied to a laundry treating apparatus, comprising:
the communication module is used for receiving a starting instruction;
a timing module for recording the action time of a motor in the clothes processing device; and
a control module to:
controlling the motor to start according to the starting instruction; and
controlling the starting or stopping of the motor according to the relation between the action time and the preset time,
the preset time comprises preset starting duration and preset pause duration, the action of the motor comprises positive rotation and reverse rotation, the action time comprises positive rotation duration, reverse rotation duration and pause duration between the positive rotation action and the reverse rotation action, the preset starting duration comprises preset positive rotation duration and preset reverse rotation duration, the communication module is further used for receiving the weight of clothes to be washed in the clothes treatment device, and the control module is further used for adjusting the preset time according to the weight in the washing process so that:
the preset pause duration is a first preset pause duration under the condition that the weight is a first weight;
the preset pause duration is a second preset pause duration in the case that the weight is a second weight,
wherein the first weight is less than the second weight and the first preset dwell duration is less than the second preset dwell duration.
8. The frequency converter of claim 7, wherein controlling the motor to start comprises controlling the motor to rotate in a forward or reverse direction, the preset start duration comprises a preset forward rotation duration or a preset reverse rotation duration, and the control module is further configured to adjust the preset time according to the weight such that:
under the condition that the weight is the first weight, the preset forward rotation duration and/or the preset reverse rotation duration are/is respectively a first preset forward rotation duration and/or a first preset reverse rotation duration;
when the weight is a second weight, the preset forward rotation duration and/or the preset reverse rotation duration are/is a second preset forward rotation duration and/or a second preset reverse rotation duration respectively,
the first weight is smaller than the second weight, the first preset forward rotation duration is smaller than the second preset forward rotation duration, and the first preset reverse rotation duration is smaller than the second preset reverse rotation duration.
9. The frequency converter of claim 7, wherein the control module adjusting the preset time according to the weight comprises:
adjusting the preset pause duration to a third preset pause duration when the ratio of the weight to the capacity of the laundry treating device is less than one third; and/or
When the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset pause duration to be a fourth preset pause duration; and/or
Adjusting the preset pause duration to a fifth preset pause duration when the ratio of the weight to the capacity of the laundry treating device is greater than two-thirds;
wherein the third preset pause duration and the fifth preset pause duration are related to the capacity of the laundry treatment apparatus, the fourth preset pause duration is a constant value, and the third preset pause duration, the fourth preset pause duration and the fifth preset pause duration sequentially follow from small to large: the third preset pause duration, the fourth preset pause duration, and the fifth preset pause duration.
10. The frequency converter of claim 8, wherein the control module adjusting the preset time according to the weight comprises:
when the ratio of the weight to the capacity of the clothes treatment device is less than one third, adjusting the preset forward rotation duration time to be a third preset forward rotation duration time; and/or
When the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset forward rotation duration time to be a fourth preset forward rotation duration time; and/or
When the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset forward rotation duration time to be a fifth preset forward rotation duration time;
wherein the third preset forward rotation duration and the fourth preset forward rotation duration are constant values, the fifth preset forward rotation duration is related to the capacity of the laundry treatment device, and the third preset forward rotation duration or the fourth preset forward rotation duration and the fifth preset forward rotation duration sequentially follow from small to large: the third preset forward rotation duration time or the fourth preset forward rotation duration time or the fifth preset forward rotation duration time.
11. The frequency converter of claim 8, wherein the control module adjusting the preset time according to the weight comprises:
adjusting the preset inversion duration time to a third preset inversion duration time when a ratio of the weight to a capacity of the laundry treating apparatus is less than one-third; and/or
When the ratio of the weight to the capacity of the clothes treatment device is greater than or equal to one third and less than or equal to two thirds, adjusting the preset reverse rotation duration time to be a fourth preset reverse rotation duration time; and/or
When the ratio of the weight to the capacity of the clothes treatment device is more than two thirds, adjusting the preset reverse rotation duration time to be a fifth preset reverse rotation duration time;
wherein, the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration are related to the capacity of the laundry treatment device, and the sequence from small to large of the third preset inversion duration, the fourth preset inversion duration and the fifth preset inversion duration is in sequence: the third preset inversion duration, the fourth preset inversion duration, and the fifth preset inversion duration.
12. The frequency converter according to claim 7, wherein the control module comprises a forward rotation control module and a reverse rotation control module for controlling forward rotation and reverse rotation of the motor, respectively,
the control module controls the starting or stopping of the motor according to the relation between the action time and the preset time, and the control module comprises the following steps:
after a starting instruction is received, the motor is controlled to rotate forwards through the forward rotation control module;
controlling the motor to pause when the forward rotation duration time reaches the preset forward rotation duration time; and
and under the condition that the pause duration reaches the preset pause duration, controlling the motor to reversely rotate through the reverse rotation control module.
13. A laundry treatment apparatus, characterized in that it comprises a frequency converter according to any one of claims 7-12.
14. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the method of any one of claims 1-6.
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| CN1015999B (en) * | 1984-12-19 | 1992-03-25 | 三洋电机株式会社 | Washer with spin dryer |
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| CN1265328A (en) * | 1999-03-01 | 2000-09-06 | 上海三灵工业洗涤设备厂 | Frequency-changing uniformly distributing balance method and balancer for hospital fabric and bedding washing machine |
| CN1376568A (en) * | 2002-04-05 | 2002-10-30 | 宁波华液机器制造有限公司 | Feedback-type control method for energy-saving running of injection moulding machine |
| JP2004135476A (en) * | 2002-10-15 | 2004-04-30 | Fuji Electric Fa Components & Systems Co Ltd | Electric motor driving device controlling method |
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