A laundry treating apparatus

By detecting the heater temperature with sensors and controlling the fan speed according to the temperature-power supply duration mapping relationship, the problem of resource waste caused by the fan running at maximum speed when the heater is at a low temperature is solved, thus achieving efficient drying and resource conservation in clothing processing equipment.

CN115772785BActive Publication Date: 2026-02-13HISENSE(SHANDONG)REFRIGERATOR CO LTD
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Patent Information

Application Number
CN202211587606.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-09
Publication Date
2026-02-13
Estimated Expiration
2042-12-09

AI Technical Summary

Technical Problem

When the heater in the garment processing equipment is first started, the temperature is low, and the fan runs at maximum speed, resulting in wasted resources.

Method used

The heater temperature is detected by a sensor, and the fan speed is controlled according to the preset temperature power supply duration mapping relationship to optimize the fan power supply duration to match the actual temperature of the heater.

Benefits of technology

This avoids the waste of resources caused by the fan running at maximum speed when the heater is at a low temperature, thus improving the drying efficiency of the garment processing equipment and saving resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

Embodiments of the present application provide a laundry treating apparatus, comprising: a driving circuit and a fan connected to each other, the fan being configured to rotate air outwards under the driving of the driving circuit; a heater configured to heat the air rotated outwards by the fan under the driving of the driving circuit; a sensor assembly configured to detect an actual temperature value of the heater; and a controller configured to perform the following steps: if the laundry treating apparatus is in a drying mode, obtaining the actual temperature value of the heater detected by the sensor assembly; obtaining a power supply time length of a single alternating current cycle corresponding to the actual temperature value based on a preset temperature value-power supply time length mapping relationship; and controlling the driving circuit and the alternating current power supply to be turned on based on the power supply time length of the single alternating current cycle. The technical solution of the embodiments of the present application can adjust the rotating speed of the fan by obtaining the actual temperature value of the heater, so as to save the consumption of resources.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electromechanical control, in particular to a clothes treatment device. BACKGROUND

[0002] With the continuous improvement of people's living standards, using clothes treatment devices to treat clothes is a common clothes treatment method for people, such as clothes washing treatment, clothes drying treatment, and clothes dry cleaning treatment.

[0003] In the related art, when a user needs to use a clothes treatment device to dry clothes to be treated, the user places the clothes to be treated in an inner drum of the clothes treatment device, and the clothes treatment device enters a drying mode, so that the clothes treatment device controls a heater of the clothes treatment device to heat up and controls a fan of the clothes treatment device to rotate, so as to heat the air outlet of the fan by the heater, and then to dry the clothes to be treated in the inner drum by the heated air outlet.

[0004] Since the temperature value of the heater is low when the heater is just started, the heating effect of the heater on the air outlet of the fan is weak at this time, but the fan is directly connected to an alternating current power supply, so that the fan still runs at the maximum speed even when the heater is just started, resulting in waste of resources. SUMMARY

[0005] To solve the above technical problems, an embodiment of the present application provides a clothes treatment device.

[0006] According to the clothes treatment device provided in the first embodiment of the present application, the clothes treatment device comprises: a driving circuit and a fan connected to each other, both of which are arranged in the clothes treatment device, and the fan is configured to rotate an air outlet under the driving of the driving circuit; a heater arranged at a position corresponding to the air outlet of the fan in the clothes treatment device, and configured to heat the air outlet rotated by the fan under the driving of the driving circuit; a sensor assembly configured to detect an actual temperature value of the heater; and a controller configured to perform the following steps: if the clothes treatment device is in a drying mode, obtaining the actual temperature value of the heater detected by the sensor assembly; obtaining a power supply time length of a single alternating current cycle corresponding to the actual temperature value based on a preset temperature-power supply time length mapping relationship; controlling the conduction of the driving circuit and the alternating current power supply according to the power supply time length of the single alternating current cycle to control the alternating current voltage of the driving circuit, and driving the rotation of the fan by the driving circuit corresponding to the alternating current voltage in the conduction process.

[0007] In the laundry treating apparatus provided in the first embodiment of the present application, the controller has: when the laundry treating apparatus is in the drying mode, obtaining an actual temperature value of the heater, obtaining a power-on time length of the driving circuit and the AC power source in a single AC cycle corresponding to the actual temperature value according to a mapping relationship between the actual temperature value and the preset temperature power-on time length, controlling the AC voltage of the driving circuit, and driving the rotation of the fan by the driving circuit corresponding to the AC voltage in the process of turning on, so as to control the rotation speed of the fan according to the actual temperature value of the heater, and avoid the case that the fan runs at the maximum rotation speed when the actual temperature value of the heater is low after the heater is started, thereby avoiding the waste of resources.

[0008] The laundry treating apparatus provided in the second embodiment of the present application further comprises: a zero-crossing circuit arranged between the driving circuit and the AC power source, configured to rectify and divide the voltage output by the AC power source, and generate a zero-crossing signal when the voltage after division reaches a preset turn-on voltage value; and the controller is further configured to perform the following steps: if the laundry treating apparatus is in the drying mode and the zero-crossing signal generated by the zero-crossing circuit is detected, obtaining the actual temperature value of the heater detected by the sensor assembly.

[0009] In the laundry treating apparatus provided in the second embodiment of the present application, the controller needs to detect the zero-crossing signal generated by the zero-crossing circuit when it is determined that the laundry treating apparatus is in the drying mode, and then obtain the actual temperature value of the heater, so as to ensure that the actual temperature value of the heater is obtained when the heater is already in the working state.

[0010] The laundry treating apparatus provided in the third embodiment of the present application further comprises: a first timer configured to count from a starting time point of each AC cycle; the power-on time length of the single AC cycle comprises a plurality of sub power-on time lengths; and the controller is further configured to perform the following steps: when the first timer starts counting, controlling the turn-on of the driving circuit and the AC power source to control the AC voltage of the driving circuit, and driving the rotation of the fan by the driving circuit corresponding to the AC voltage in the process of turning on; if the counting time length of the first timer reaches the sub power-on time length, controlling the disconnection of the driving circuit and the AC power source; and after the driving circuit and the AC power source are disconnected for a specified time length, the first timer re-counts from the current time point of the AC cycle, and jumps to execute the step of controlling the turn-on of the driving circuit and the AC power source when the first timer starts counting.

[0011] In the laundry treating apparatus provided in the third embodiment of the present application, since the instantaneous voltage value generated in a single alternating current cycle varies regularly with time, the effective voltage value constituted by each instantaneous voltage value in different time periods of a single alternating current cycle is also different; the laundry treating apparatus sets a first timer to time from a starting time point of each alternating current cycle; under the condition that the power supply time of a single alternating current cycle includes multiple power supply time lengths, the controller controls the driving circuit to be turned on with the alternating current power supply when the first timer starts timing, and controls the driving circuit to be turned off with the alternating current power supply when the timing length of the first timer reaches the power supply time length, and the first timer re-times from the current time point of the alternating current cycle after the driving circuit is turned off with the alternating current power supply for a specified time length, and jumps to execute the step of controlling the driving circuit to be turned on with the alternating current power supply when the first timer starts timing, thereby realizing the function of adjusting the on-off wave band between the driving circuit and the alternating current power supply, and further achieving the purpose of controlling the alternating current voltage of the driving circuit, so that the rotation speed of the fan is controlled.

[0012] The laundry treating apparatus provided in the fourth embodiment of the present application further includes a first timer configured to time from a starting time point of each alternating current cycle; the controller is further configured to execute the following steps: controlling the driving circuit to be turned on with the alternating current power supply when the first timer starts timing, to control the alternating current voltage of the driving circuit, and driving the fan to rotate by the driving circuit corresponding to the alternating current voltage in the on process; and controlling the driving circuit to be turned off with the alternating current power supply when the timing length of the first timer reaches the power supply time length of the single alternating current cycle.

[0013] In the laundry treating apparatus provided in the fourth embodiment of the present application, since the effective voltage value provided by a single alternating current cycle is fixed, the longer the on time in a single alternating current cycle, the higher the effective voltage value provided by the single alternating current cycle; therefore, the controller controls the driving circuit to be turned on with the alternating current power supply when the first timer times from the starting time point of each alternating current cycle, and controls the driving circuit to be turned off with the alternating current power supply when the timing length of the first timer reaches the power supply time length of the single alternating current cycle, which indicates that the power supply time length of the fan in the power supply time length of the single alternating current cycle reaches the power supply time length obtained from the mapping relationship between the working temperature of the heater and the preset power supply time length of the temperature, to control the on-off time length between the driving circuit and the single alternating current cycle, thereby achieving the purpose of controlling the alternating current voltage of the fan, and further playing the role of controlling the rotation speed of the fan.

[0014] According to the laundry treating apparatus provided in the fifth embodiment of the present application, the preset temperature power supply duration mapping relationship includes a plurality of temperature values, and the single alternating current cycle power supply duration corresponding to each of the plurality of temperature values; the controller is further configured to perform the following steps: determining a target temperature value corresponding to the actual temperature value in the preset temperature power supply duration mapping relationship; obtaining the single alternating current cycle power supply duration corresponding to the target temperature value in the preset temperature power supply duration mapping relationship based on the target temperature value, and taking the obtained single alternating current cycle power supply duration as the single alternating current cycle power supply duration corresponding to the actual temperature value.

[0015] In the laundry treating apparatus provided in the fifth embodiment of the present application, a plurality of temperature values and the single alternating current cycle power supply duration corresponding to each of the plurality of temperature values are added in the preset temperature power supply duration mapping relationship. On the one hand, the controller can first determine a target temperature value corresponding to the actual temperature value in the preset temperature power supply duration mapping relationship, and then obtain the single alternating current cycle power supply duration corresponding to the target temperature value in the preset temperature power supply duration mapping relationship based on the target temperature value, and take the obtained single alternating current cycle power supply duration as the single alternating current cycle power supply duration corresponding to the actual temperature value, so that the controller can obtain the single alternating current cycle power supply duration corresponding to the actual temperature value according to the actual temperature value of the heater and the preset temperature power supply duration mapping relationship. On the other hand, since the temperature values of the heater are different, the efficiency of the heater in heating the air outlet of the fan is also different, so different temperature values are respectively corresponding to different single alternating current cycle power supply durations, so that different single alternating current cycle power supply durations are used to control the conduction of the driving circuit and the alternating current power supply when the actual temperature value of the heater reaches different temperature values in the preset temperature power supply duration mapping relationship, so as to realize that the air speed of the fan changes with the change of the actual temperature value of the heater, that is, the air speed of the fan can be adjusted according to the change of the efficiency of the heater in heating the air outlet of the fan, so as to achieve the purpose of saving resources while improving the drying efficiency of the laundry treating apparatus.

[0016] According to the laundry treating apparatus provided in the sixth embodiment of the present application, the controller is further configured to perform the following steps: detecting a setting operation for the preset temperature power supply duration mapping relationship in a setting interface; wherein the setting operation contains a plurality of temperature values and the single alternating current cycle power supply duration corresponding to each of the plurality of temperature values, and the higher the temperature value is, the longer the corresponding single alternating current cycle power supply duration is; and storing the preset temperature power supply duration mapping relationship in response to the setting operation.

[0017] In the sixth embodiment of the present application, the controller detects a setting operation for mapping the preset temperature power supply duration in the setting interface, and stores the preset temperature power supply duration in response to the setting operation. The setting operation contains a plurality of temperature values and a plurality of power supply durations of a single alternating current cycle corresponding to the temperature values, respectively. Since the higher the temperature value of the heater, the higher the efficiency of the heater in heating the air outlet of the fan, the longer the power supply duration of a single alternating current cycle corresponding to the higher temperature value in the setting operation. That is, the higher the temperature value of the heater, the faster the speed of the fan, so that the speed of the fan is synchronized with the temperature of the heater, thereby improving the drying efficiency of the clothes treatment equipment on the premise of saving resources.

[0018] According to the seventh embodiment of the present application, the preset temperature power supply duration mapping relationship includes a plurality of temperature intervals and a plurality of power supply durations of a single alternating current cycle corresponding to the temperature intervals, respectively. The controller is further configured to perform the following steps: determining a target temperature interval in the preset temperature power supply duration mapping relationship according to the actual temperature value; obtaining the power supply duration of a single alternating current cycle corresponding to the target temperature interval in the preset temperature power supply duration mapping relationship, and taking the obtained power supply duration of a single alternating current cycle as the power supply duration of a single alternating current cycle corresponding to the actual temperature value.

[0019] In the seventh embodiment of the present application, a plurality of temperature intervals and a plurality of power supply durations of a single alternating current cycle corresponding to the temperature intervals are added in the preset temperature power supply duration mapping relationship. On the one hand, the controller can determine a target temperature interval in the preset temperature power supply duration mapping relationship according to the actual temperature value, and obtain the power supply duration of a single alternating current cycle corresponding to the target temperature interval in the preset temperature power supply duration mapping relationship, and take the obtained power supply duration of a single alternating current cycle as the power supply duration of a single alternating current cycle corresponding to the working temperature, so that the controller can obtain the power supply duration of a single alternating current cycle corresponding to the actual temperature value according to the actual temperature value of the heater and the preset temperature power supply duration mapping relationship. On the other hand, by dividing a plurality of temperature intervals and setting the power supply duration of a single alternating current cycle corresponding to the temperature intervals, the controller can avoid adjusting the power supply duration of a single alternating current cycle when the actual temperature value of the heater fluctuates temporarily. At the same time, the frequency of adjusting the power supply duration of a single alternating current cycle by the controller is also reduced, which reduces the processing performance requirement of the controller, thereby saving the production cost.

[0020] According to the clothes processing apparatus provided in the eighth embodiment of the present application, the controller is further configured to perform the following steps: detecting a setting operation for the preset temperature power duration mapping relationship in a setting interface; wherein the setting operation contains a plurality of temperature intervals, and the power duration of a single alternating current cycle corresponding to each of the plurality of temperature intervals, and the higher the average temperature value corresponding to the temperature interval is, the longer the power duration of the single alternating current cycle corresponding to the temperature interval is; and storing the preset temperature power duration mapping relationship in response to the setting operation.

[0021] In the clothes processing apparatus provided in the eighth embodiment of the present application, the controller detects a setting operation for the preset temperature power duration mapping relationship in a setting interface, and stores the preset temperature power duration mapping relationship in response to the setting operation. The setting operation contains a plurality of temperature intervals, and the power duration of a single alternating current cycle corresponding to each of the plurality of temperature intervals. Since the higher the temperature value of the heater is, the higher the efficiency of the heater in heating the air outlet of the fan is, the higher the average temperature value corresponding to the temperature interval in the setting operation is, the longer the power duration of the single alternating current cycle corresponding to the temperature interval is. That is, the higher the temperature value in the temperature interval is, the faster the rotating speed of the fan is, so that the rotating speed of the fan is adjusted synchronously and improved when the heater is heated to the corresponding temperature interval, and the drying efficiency of the clothes processing apparatus is improved on the premise of saving resources.

[0022] According to the clothes processing apparatus provided in the ninth embodiment of the present application, further comprising: a second timer configured to count time from a time point when the clothes processing apparatus enters the drying mode; and the controller is further configured to perform the following steps: if the counting time length of the second timer does not reach a preset entering time length, obtaining the actual temperature value of the heater detected by the sensor assembly.

[0023] In the laundry treating apparatus provided in the ninth embodiment of the present application, the laundry treating apparatus in the drying mode usually sets a corresponding drying temperature before drying the laundry, and stops the heater from heating when the actual temperature value of the heater reaches the drying temperature corresponding to the drying mode; therefore, the laundry treating apparatus further comprises a second timer for timing from the time point when the laundry treating apparatus enters the drying mode, and the controller determines that the actual temperature value of the heater does not reach the drying temperature corresponding to the current drying mode if the timing duration of the second timer does not reach a preset entering duration, and then acquires the actual temperature value of the heater detected by the sensor assembly, so as to subsequently adjust the rotating speed of the fan according to the actual temperature value, thereby avoiding waste of resources; correspondingly, if the timing duration of the second timer reaches the preset entering duration, it indicates that the actual temperature value of the heater has reached the drying temperature of the current drying mode, that is, the heater stops heating, so that the controller does not need to acquire the actual temperature value of the heater to adjust the rotating speed of the fan.

[0024] According to the laundry treating apparatus provided in the tenth embodiment of the present application, the controller is further configured to perform the following steps: if the laundry treating apparatus is in the drying mode, acquiring a target detection strategy corresponding to the drying mode; and sending the target detection strategy to the sensor assembly, so that the sensor assembly detects the actual temperature value of the heater based on the target detection strategy.

[0025] In the laundry treating apparatus provided in the tenth embodiment of the present application, the laundry treating apparatus can set different drying parameters in the drying mode according to the condition of the laundry to be treated, wherein the condition of the laundry to be treated includes but is not limited to the weight and material of the laundry to be treated, and the drying parameters include but are not limited to the drying temperature and drying time; therefore, if the controller detects that the laundry treating apparatus is in the drying mode, it acquires a target detection strategy corresponding to the drying mode, so that the sensor assembly detects the actual temperature value of the heater based on the target detection strategy; on one hand, the corresponding detection strategy is acquired in the drying mode to adjust the detection frequency of the sensor assembly on the actual temperature value of the heater according to the detection strategy, thereby saving the consumption of resources; on the other hand, due to the reduction of the detection frequency, the frequency of the controller for adjusting the rotating speed of the fan according to the actual temperature value is also reduced, thereby reducing the processing performance requirement of the controller, so as to save the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application. It is to be understood that the drawings are only schematic, and that they do not necessarily correspond to the precise implementation of the application. In the drawings:

[0027] Figure 1 is a structural schematic diagram of a laundry treating apparatus provided by an embodiment of the present application.

[0028] Figure 2 is a circuit diagram of a drive circuit in a laundry treating apparatus provided by an embodiment of the present application.

[0029] Figure 3 is a circuit diagram of a zero-crossing circuit in a laundry treating apparatus provided by an embodiment of the present application.

[0030] Figure 4 is a voltage waveform diagram at a base of a triode and at an output end of a zero-crossing signal in the zero-crossing circuit provided by an embodiment of the present application. DETAILED DESCRIPTION

[0031] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art. Like reference numerals refer to like elements throughout.

[0032] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the

[0033] The block diagrams in the drawings show only the functionality of the embodiments and do not imply any particular physical or architectural arrangement of the devices. No inference should be made regarding the architecture (i.e., software, firmware, hardware, circuitry, processor, etc.) of actual, commercial, products (e.g., learning systems, etc.) that can implement the functionality described in the application. One of ordinary skill in the art will readily recognize that the functions can be implemented in other ways not shown in the drawings.

[0034] The flow chart shown in the drawing is only an exemplary illustration, and is not necessarily to include all the contents and operations / steps, nor is it necessarily to be executed in the order as described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to the actual situation.

[0035] It should be noted that "multiple" referred to in this paper means two or more than two. The association relationship of "and / or" describes the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents that the associated objects before and after are an "or" relationship.

[0036] Figure 1 is a structural schematic diagram of a clothes processing device provided by an embodiment of the present application. As shown in Figure 1 , the clothes processing device 10 includes a driving circuit, a fan 11, a heater 12, a sensor group 13, and a controller, which will be introduced one by one below.

[0037] The driving circuit and the fan 11 are connected with each other and are both arranged in the clothes processing device, and the fan 11 is configured to rotate to blow out under the driving of the driving circuit, that is, the driving circuit is used to provide an alternating voltage to the fan 11.

[0038] Among them, the fan 11 in the clothes processing device 10 usually adopts a single-way alternating current motor, and the corresponding setting mode of the driving circuit can refer to Figure 2 , the driving circuit includes a first resistor R1, a second resistor R2, a first electrolytic capacitor C1, a light bidirectional thyristor TLP1, and an inductor L1. Among them, one end of the first resistor R1 is connected with an alternating current access end L for accessing an alternating current power supply, and the other end of the first resistor R1 is connected with the positive electrode of the first electrolytic capacitor C1. The negative electrode of the first electrolytic capacitor C1 is connected with an alternating current output end L_OUT for delivering an alternating voltage to the fan 11. The strong current access end T-1 of the light bidirectional thyristor TLP1 is connected in parallel between the first resistor R1 and the alternating current access end L, the strong current output end T-2 of the light bidirectional thyristor TLP1 is connected with one end of the inductor L1, and the other end of the inductor L1 is connected in parallel between the negative electrode of the first electrolytic capacitor C1 and the alternating current output end L_OUT. The weak current access end T-3 of the light bidirectional thyristor TLP1 is connected with a direct current power supply VCC1 of the driving circuit, and the weak current output end T-4 of the light bidirectional thyristor TLP1 is connected with a control end GTODRIVER.

[0039] According to Figure 2The driving circuit provides AC voltage to the fan 11. In one example, when the AC power is connected to the AC connection end L, if the control end GTODRIVER sends a control signal for providing AC voltage to the fan 11, the DC power supply VCC1 of the driving circuit can drive the light emitting diode between the weak current connection end T-3 and the weak current connection end T-4 of the light bidirectional thyristor TLP1 to emit light. In response to the light emitted by the light emitting diode, the bidirectional thyristor between the strong current connection end T-1 and the strong current connection end T-2 of the light bidirectional thyristor TLP1 is turned on, so that the AC power connected to the AC connection end L can provide AC voltage to the fan 11 through the strong current connection end T-1 and the strong current connection end T-2 of the light bidirectional thyristor TLP1 and the AC connection end L_OUT in turn.

[0040] In addition, the first electrolytic capacitor C1 and the inductor L1 in the driving circuit can absorb abnormal fluctuations in the AC power supply based on their respective circuit characteristics to achieve the purpose of protecting the driving circuit.

[0041] The heater 12 is arranged in the clothes treatment apparatus 10 and is arranged at a position corresponding to the air outlet of the fan 11 for heating the air outlet rotated by the fan 11 under the drive of the driving circuit. In the embodiment of the present application, the heater 12 can be arranged as an electromagnetic heater or a resistance heater, which is not limited here.

[0042] The sensor assembly 13 is arranged in the clothes treatment apparatus 10 and is configured to detect the actual temperature value of the heater 12. In the embodiment of the present application, the sensor assembly 13 includes but is not limited to a thermocouple sensor, a thermistor sensor, and an infrared temperature sensor, and the type and parameters of the sensor assembly 13 can be adjusted in actual use to adapt to different use environments and use requirements.

[0043] The controller is electrically connected to the control end GTODRIVER in the driving circuit and the sensor assembly 13 to send a control signal based on the control end GTODRIVER to control the provision of AC voltage to the fan 11 and obtain the actual temperature value of the heater 12 detected by the sensor assembly 13. In addition, the controller is configured to perform the following steps:

[0044] If the clothes treatment apparatus is in a drying mode, the actual temperature value of the heater detected by the sensor assembly is obtained;

[0045] Based on the actual temperature value and the preset temperature supply duration mapping relationship, the supply duration of a single AC cycle corresponding to the actual temperature value is obtained;

[0046] The driving circuit is turned on according to the power supply duration of a single alternating current cycle to control the alternating current voltage of the driving circuit, and the rotation of the fan is driven by the driving circuit corresponding to the alternating current voltage during the conduction.

[0047] Since different working modes are usually provided in the laundry treatment apparatus 10 to treat the laundry, for example, a washing mode for washing the laundry, a dry cleaning mode for dry cleaning the laundry, and a drying mode for drying the laundry, in the embodiments of the present application, if the controller determines that the laundry treatment apparatus 10 is in the drying mode, it means that the heater 12 is in the running state, and then the actual temperature value of the heater 12 detected by the sensor assembly 13 is obtained. Accordingly, when the laundry treatment apparatus 10 is not in the drying mode, the controller does not need to obtain the actual temperature value of the heater 12 detected by the sensor assembly 13, so that the sensor assembly 13 does not need to detect the actual temperature value of the heater 12 when the heater 12 is not in the running state, thereby saving resource consumption.

[0048] First of all, it should be pointed out that when the laundry treatment apparatus 10 switches to the drying mode, the heater 12 is powered on, and the actual temperature value of the heater 12 gradually increases to heat the air outlet of the fan 11, so that the heated air outlet is used to dry the laundry to be dried.

[0049] When the heater 12 is powered on, the actual temperature value of the heater 12 is low, and if the fan 11 is directly connected to the alternating current power supply, that is, the fan 11 is operated at the maximum speed, not only the air outlet of the fan 11 cannot be effectively heated by the heater 12, but also the resource is wasted, so in the embodiments of the present application, after the actual temperature value of the heater 12 is obtained, the power supply duration of a single alternating current cycle corresponding to the actual temperature value can be obtained based on the actual temperature value and the preset temperature power supply duration mapping relationship.

[0050] It should be noted that alternating current refers to current whose direction changes periodically with time, and the instantaneous voltage value at each moment is different. A single alternating current cycle is the time required for the current to complete a periodic change. The power supply duration of a single alternating current cycle represents the duration of the control and alternating current source conduction in a single alternating current cycle, and the longer the power supply duration, the higher the effective voltage value in the alternating current cycle. At the same time, since the fan 11 rotates under the drive of the alternating current power supply, the higher the effective voltage value of the alternating current power supply, the higher the speed of the fan 11, that is, the longer the power supply duration, the higher the speed of the fan 11 after the alternating current cycle is turned on.

[0051] In the embodiment, the single alternating current cycle power supply duration corresponding to the actual temperature value can be set flexibly according to requirements. In one example, the preset temperature power supply duration mapping relationship can be established in advance based on different temperature values and the single alternating current cycle power supply duration corresponding to each temperature value before the clothes treatment apparatus is shipped, and the preset temperature power supply duration mapping relationship is stored in the controller. Thus, after the actual temperature value of the heater 12 is obtained, the controller can directly retrieve the preset temperature power supply duration mapping relationship, and based on matching the actual temperature value with the plurality of temperature values in the preset temperature power supply duration mapping relationship, obtain the temperature value that is the same as the actual temperature value in the preset temperature power supply duration mapping relationship, and then take the single alternating current cycle power supply duration corresponding to the temperature value as the single alternating current cycle power supply duration of the actual temperature value.

[0052] In another example, the preset temperature power supply duration mapping relationship can be established in advance based on different temperature values and the single alternating current cycle power supply duration corresponding to each temperature value, and the preset temperature power supply duration mapping relationship is uploaded to a network database. Thus, after the actual temperature value of the heater 12 is obtained, the controller can retrieve the preset temperature power supply duration mapping relationship stored in the network database through the network, and based on matching the actual temperature value with the plurality of temperature values in the preset temperature power supply duration mapping relationship, obtain the temperature value that is the same as the actual temperature value in the preset temperature power supply duration mapping relationship, and then take the single alternating current cycle power supply duration corresponding to the temperature value as the single alternating current cycle power supply duration of the actual temperature value. In addition, by uploading the preset temperature power supply duration mapping relationship to the network database, subsequent engineers can optimize and adjust the single alternating current cycle power supply duration corresponding to each temperature value, further saving resource consumption.

[0053] After obtaining the single alternating current cycle power supply duration corresponding to the actual temperature value, in the embodiment, the controller can control the conduction of the driving circuit and the alternating current power source according to the single alternating current cycle power supply duration, to control the alternating current voltage of the driving circuit, and drive the rotation of the fan 11 through the driving circuit corresponding to the alternating current voltage during the conduction, so as to control the conduction of the fan 11 and the alternating current power source according to the single alternating current cycle power supply duration corresponding to the actual temperature value of the heater 12, that is, to achieve the purpose of adjusting the rotation speed of the fan 11 according to the actual temperature value of the heater 12, thereby avoiding the case that the fan 11 still runs at the maximum rotation speed when the actual temperature value of the heater 12 is low after starting, resulting in resource waste.

[0054] In another exemplary embodiment, the clothes treatment apparatus 10 further includes a zero-crossing circuit.

[0055] The zero-crossing circuit is connected in parallel between the driving circuit and the AC power supply, and is configured to rectify and divide the voltage output by the AC power supply, and generate a zero-crossing signal when the divided voltage reaches a preset conduction voltage value.

[0056] In the embodiments of the present application, reference can be made to Figure 3 As shown in the figure, the zero-crossing circuit includes a first diode D1, a second diode D2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a second electrolytic capacitor C2, a third electrolytic capacitor C3, and a triode N1. The anode of the first diode D1 is connected to the AC live line end L of the zero-crossing circuit, and the anode of the second diode D2 is connected to the AC neutral line end N of the zero-crossing circuit. The third resistor R3, the fourth resistor R4, and the fifth resistor R5 are sequentially connected end to end in a counterclockwise direction, and the cathode of the first diode D1 and the cathode of the second diode D2 are connected in parallel between the third resistor R3 and the fourth resistor R4. The anode of the second electrolytic capacitor C2 is connected in parallel between the third resistor R3 and the fifth resistor R5, and the cathode of the second electrolytic capacitor C2 is connected in parallel between the fourth resistor R4 and the fifth resistor R5. The base of the triode N1 is connected in parallel between the anode of the second electrolytic capacitor C2 and the third resistor R3. The emitter of the triode N1 is connected in parallel between the cathode of the second electrolytic capacitor C2 and the fifth resistor R5, and in addition, the connection point of the emitter of the triode N1, the cathode of the second electrolytic capacitor C2, the fourth resistor R4, and the fifth resistor R5 is grounded. The collector of the triode N1 is connected to one end of the sixth resistor R6, and the other end of the sixth resistor R6 is connected to a DC power supply VCC2. The anode of the third electrolytic capacitor C3 is connected in parallel between the collector of the triode N1 and the sixth resistor R6, and the zero-crossing circuit further has a zero-crossing signal output end ZERO between the collector of the triode N1 and the sixth resistor R6, and the cathode of the third electrolytic capacitor C3 is grounded.

[0057] According to Figure 3 As shown in the figure, the zero-crossing circuit outputs a zero-crossing signal in the following manner. In one example, the voltage output by the AC power supply is rectified by the first diode D1 and the second diode D2 connected to the AC live line end L and the AC neutral line end N of the zero-crossing circuit, and then the rectified AC power supply is divided by the third resistor R3, the fourth resistor R4, and the fifth resistor R5.

[0058] The preset conduction voltage represents the conduction voltage of the triode N1, and can be adjusted according to actual conditions. If the conduction voltage of the triode N1 is 0.7V, when the voltage at the base of the triode N1 reaches 0.7V, the collector and the emitter of the triode N1 will be turned on, so that the DC power supply VCC2 of the zero-crossing circuit is turned on via the emitter of the triode N1 to ground.

[0059] Therefore, if the DC power supply VCC2 of the zero-crossing circuit is 5V, refer to Figure 4 As shown in the waveform diagram, when the AC voltage after voltage division at the base of transistor N1 is less than 0.7V, the current voltage value at the zero-crossing signal output terminal ZERO, which is located between the collector of transistor N1 and the sixth resistor R6, should be the voltage value of the DC power supply VCC2, i.e., 5V. However, once the AC voltage after voltage division at the base of transistor N1 reaches 0.7V, the collector and emitter of transistor N1 conduct. Since the DC power supply VCC2 of the zero-crossing circuit is grounded through the emitter of transistor N1, the current voltage value at the zero-crossing signal output terminal ZERO becomes 0V. Therefore, a zero-crossing signal can be output by detecting whether the voltage at the zero-crossing signal output terminal ZERO has changed.

[0060] In addition, the second electrolytic capacitor C2 and the third electrolytic capacitor C3 in the zero-crossing circuit can reduce the influence of AC signals on the zero-crossing circuit based on the characteristic of capacitors blocking DC and passing AC. That is, if an AC signal appears at the base of transistor N1, the AC signal is transmitted to the ground through the second electrolytic capacitor C2; if an AC signal appears at the collector of transistor N1, the AC signal is transmitted to the ground through the third electrolytic capacitor C3.

[0061] The controller is electrically connected to the zero-crossing circuit to detect whether the zero-crossing circuit outputs a zero-crossing signal. The controller is also configured to perform the following steps:

[0062] If the garment processing equipment is in drying mode and a zero-crossing signal is detected by the zero-crossing circuit, the actual temperature value of the heater detected by the sensor assembly is obtained.

[0063] To ensure that the heater 12 of the garment processing equipment is connected to AC power and in working condition, in this embodiment, if the controller determines that the garment processing equipment is in drying mode, it needs to detect the zero-crossing signal generated by the zero-crossing circuit before acquiring the actual temperature value of the heater 12. This avoids acquiring the actual temperature value of the heater 12 when the garment processing equipment has entered drying mode but the heater 12 cannot enter working condition due to insufficient voltage. On the one hand, this allows the sensor assembly 13 to stop detecting the actual temperature value of the heater 12 when the zero-crossing circuit does not generate a zero-crossing signal, thereby further saving resource consumption. On the other hand, it avoids the controller adjusting the fan speed of the fan 11 based on the actual temperature value of the heater 12 when it is not in working condition, thus wasting the controller's processing power.

[0064] In another exemplary embodiment, the garment handling device 10 also includes a first timer.

[0065] The first timer is configured to count from a starting time point of each AC cycle. In one example, the first timer starts counting when the zero-crossing circuit generates a zero-crossing signal.

[0066] Since the time of a single AC cycle is usually fixed, the waveform of a single AC cycle, and thus the change of the instantaneous voltage value generated in a single AC cycle, can be determined more accurately based on the first timer and the zero-crossing signal of the zero-crossing circuit.

[0067] The controller is electrically connected to the first timer to obtain the counting of the first timer. In addition, when the power supply time of a single AC cycle includes multiple power supply time periods, the controller is further configured to perform the following steps:

[0068] When the first timer starts counting, the controller controls the driving circuit to be connected to the AC power supply to control the AC voltage of the driving circuit, and drives the fan to rotate by the driving circuit corresponding to the AC voltage during the connection.

[0069] If the counting time of the first timer reaches the power supply time, the controller controls the driving circuit to be disconnected from the AC power supply.

[0070] After the driving circuit is disconnected from the AC power supply for a specified time period, the first timer restarts counting from the current time point of the AC cycle, and the step of controlling the driving circuit to be connected to the AC power supply when the first timer starts counting is executed.

[0071] First of all, it should be noted that the instantaneous voltage value generated at different time points in a single AC cycle is different, and the effective voltage value of each time period formed by the corresponding instantaneous voltage value in each time period of a single AC cycle is also different.

[0072] In the embodiment of the present application, when the first timer counts based on the starting time point of the AC cycle, the controller controls the driving circuit to be connected to the AC power supply to control the AC voltage of the driving circuit when the first timer starts counting, and drives the fan 11 to rotate by the driving circuit corresponding to the AC voltage during the connection.

[0073] Since the power supply time length of a single alternating current cycle includes multiple child power supply time lengths, that is, the on time period of the driving circuit in a single alternating current cycle is screened through multiple child power supply time lengths, in the embodiments of the present application, if the controller determines that the timing length of the first timer reaches the child power supply time length, it means that the on time period corresponding to the child power supply time length in the current alternating current cycle has ended, and the controller controls the disconnection of the driving circuit and the alternating current power supply, thereby avoiding the situation that the driving circuit is connected with the alternating current power supply outside the on time period corresponding to the child power supply time length in the current alternating current cycle, and the voltage provided by the driving circuit rises.

[0074] In the above process, the specified time length represents the time length between multiple child power supply time lengths included in the power supply time length of a single alternating current cycle. The specified time length can be adaptively matched and adjusted according to the length of the child power supply time length, which is not limited herein.

[0075] In the embodiments of the present application, after the controller controls the disconnection of the driving circuit and the alternating current power supply when the timing length of the first timer reaches the child power supply time length, the controller determines that the driving circuit and the alternating current power supply are disconnected for a specified time length, and then the first timer re-timing starts from the current time point of the alternating current cycle, and the step of controlling the driving circuit and the alternating current power supply to be connected is skipped.

[0076] For example, when the time length of a single AC cycle is 20 ms, the power supply time length of a single AC cycle includes two power supply time lengths, each of which is 5 ms, and the specified time length is 5 ms. Therefore, when the controller starts timing from the first timer, it means that the AC cycle has started, and the controller controls the conduction of the driving circuit and the AC power supply to control the AC voltage of the driving circuit, i.e., to make the AC voltage of the driving circuit rise, and to drive the rotation of the fan 11 by the driving circuit corresponding to the AC voltage in the conduction process. If the timing length of the first timer reaches 5 ms, it means that the timing length of the first timer reaches the power supply time length, and the controller controls the disconnection of the driving circuit and the AC power supply, so that the AC voltage of the driving circuit stops rising. After the controller determines that the driving circuit and the AC power supply are disconnected for 5 ms, it means that the disconnection time length of the driving circuit and the AC power supply reaches the specified time length, so the first timer restarts timing from the current time point of the AC cycle, and repeats the step of controlling the conduction of the driving circuit and the AC power supply when the first timer starts timing. That is, after the driving circuit and the AC power supply are controlled to conduct for 5 ms again, the driving circuit and the AC power supply are controlled to be disconnected for the specified time length. Therefore, the conduction time length of the driving circuit and the AC power supply in the AC cycle is 0 ms to 5 ms and 10 ms to 15 ms, that is, the driving circuit can only drive the rotation of the fan 11 by the AC voltage corresponding to 0 ms to 5 ms and 10 ms to 15 ms in the AC cycle, so as to reduce the rotation speed of the fan 11. In this way, the AC voltage of the driving circuit used to drive the rotation of the fan 11 in the AC cycle is reduced, so as to achieve the purpose of reducing the rotation speed of the fan 11

[0077] In the first timer is configured to start timing from the start time of each AC cycle, in another exemplary embodiment, the controller is further configured to perform the following steps:

[0078] When the first timer starts timing, the controller controls the conduction of the driving circuit and the AC power supply to control the AC voltage of the driving circuit, and drives the rotation of the fan 11 by the driving circuit corresponding to the AC voltage in the conduction process.

[0079] If the timing length of the first timer reaches the power supply time length of a single AC cycle, the controller controls the disconnection of the driving circuit and the AC power supply.

[0080] In the embodiment of the present application, when the controller starts timing from the first timer, the controller controls the conduction of the driving circuit and the AC power supply to control the AC voltage of the driving circuit, i.e., to make the AC voltage of the driving circuit rise, and to drive the rotation of the fan 11 by the driving circuit corresponding to the AC voltage in the conduction process.

[0081] But since the effective voltage value provided by a single AC cycle is fixed, the longer the on period in a single AC cycle, the higher the effective voltage value provided by the single AC cycle. Therefore, in the embodiments of the present application, after the controller controls the driving circuit to be on with the AC power supply when the first timer starts timing, if the controller determines that the timing duration of the first timer reaches the power supply duration of a single AC cycle, the controller controls the driving circuit to be off with the AC power supply.

[0082] For example, the time duration of a single AC cycle is 20 ms, and the power supply duration of a single AC cycle is 10 ms. When the AC cycle starts, the first timer starts timing from the starting time point of the AC cycle. When the controller starts timing from the first timer, the controller controls the driving circuit to be on with the AC power supply to control the AC voltage of the driving circuit, and drives the rotation of the fan 11 by the driving circuit corresponding to the AC voltage during the on period. Then, if the timing duration of the first timer reaches 10 ms, it means that the timing duration of the first timer reaches the power supply duration of a single AC cycle, and the controller controls the driving circuit to be off with the AC power supply, so that the driving circuit can only drive the rotation of the fan 11 by the AC voltage corresponding to 0 ms to 10 ms in the AC cycle, so that the AC voltage obtained by the driving circuit for driving the rotation of the fan 11 in the AC cycle is reduced, and the purpose of reducing the rotation speed of the fan 11 is achieved.

[0083] In another exemplary embodiment, the preset temperature power supply duration mapping relationship includes a plurality of temperature values and a plurality of temperature values corresponding to the power supply duration of a single AC cycle, and the controller is configured to perform the following steps:

[0084] According to the actual temperature value, a target temperature value corresponding to the preset temperature power supply duration mapping relationship is determined;

[0085] Based on the target temperature value, the power supply duration of a single AC cycle corresponding to the preset temperature power supply duration mapping relationship is obtained, and the obtained power supply duration of a single AC cycle is taken as the power supply duration of a single AC cycle corresponding to the actual temperature value.

[0086] In order to make the preset temperature power supply duration mapping relationship include a plurality of temperature values and a plurality of temperature values corresponding to the power supply duration of a single AC cycle, in one example, the controller can be configured to perform the following steps:

[0087] In the setting interface, a setting operation for the preset temperature power supply duration mapping relationship is detected;

[0088] In response to the setting operation, the preset temperature power supply duration mapping relationship is stored.

[0089] The setting operation includes multiple temperature values, and the multiple temperature values correspond to the power supply time length of a single alternating current cycle.

[0090] It should be noted that the efficiency of the heater 12 at different temperature values for heating the air outlet of the fan 11 is different, and the higher the temperature value of the heater 12, the higher the efficiency of the heater 12 for heating the air outlet of the fan 11, that is, the higher the temperature value of the heater 12, the higher the speed of the fan 11 can be adjusted, thereby improving the drying efficiency of the clothes treatment equipment.

[0091] Therefore, the higher the temperature value in the preset temperature power supply time length mapping relationship, the longer the corresponding power supply time length of a single alternating current cycle, that is, the higher the alternating voltage of the driving circuit driving the fan 11 to rotate, and the higher the speed of the corresponding fan 11, thereby achieving the purpose of adjusting the speed of the fan 11 corresponding to the higher temperature value of the heater 12.

[0092] For example, in the setting operation, a first temperature value, a second temperature value and a third temperature value are added, and the temperature values corresponding to the first temperature value, the second temperature value and the third temperature value are 40°C, 45°C and 50°C respectively. If the time length of a single alternating current cycle is 20ms, then the power supply time length of a single alternating current cycle corresponding to the first temperature value is 8ms, the power supply time length of a single alternating current cycle corresponding to the second temperature value is 12ms, and the power supply time length of a single alternating current cycle corresponding to the third temperature value is 18ms. Therefore, the higher the temperature value of the heater 12, the higher the speed of the fan 11 can be adjusted.

[0093] In the embodiments of the present application, based on the multiple temperature values included in the preset temperature power supply time length mapping relationship and the power supply time length of a single alternating current cycle corresponding to the multiple temperature values, the controller can determine the corresponding target temperature value in the preset temperature power supply time length mapping relationship according to the actual temperature value.

[0094] The manner of determining the corresponding target temperature value in the preset temperature power supply time length mapping relationship according to the actual temperature value can be flexibly set as needed. In one example, after obtaining the actual temperature value of the heater 12 detected by the sensor component 13, the controller can determine the temperature value corresponding to the actual temperature value among the multiple temperature values included in the preset temperature power supply time length mapping relationship based on the actual temperature value, and take the determined temperature value as the target temperature value. The correspondence between the actual temperature value and the multiple temperature values included in the preset temperature power supply time length mapping relationship includes but is not limited to the same temperature value and the minimum temperature difference therebetween.

[0095] In the embodiments of the present application, after the target temperature value is determined, the controller can obtain the power supply duration of a single alternating current cycle corresponding to the target temperature value in the preset temperature power supply duration mapping relationship based on the target temperature value, and take the obtained power supply duration of a single alternating current cycle as the power supply duration of a single alternating current cycle corresponding to the actual temperature value.

[0096] With reference to the above example, the preset temperature power supply duration mapping relationship includes a first temperature value, a second temperature value and a third temperature value; and the power supply duration of a single alternating current cycle corresponding to the first temperature value is 8 ms, the power supply duration of a single alternating current cycle corresponding to the second temperature value is 12 ms, and the power supply duration of a single alternating current cycle corresponding to the third temperature value is 18 ms. If the controller obtains that the actual temperature value of the heater 12 detected by the sensor assembly 13 is 40°C, then the target temperature value determined in the preset temperature power supply duration mapping relationship according to the actual temperature value is the first temperature value, and correspondingly, the power supply duration of a single alternating current cycle corresponding to the first temperature value in the preset temperature power supply duration mapping relationship is 8 ms, that is, the power supply duration of a single alternating current cycle obtained according to the actual temperature value is 8 ms.

[0097] In addition, when the current actual temperature value of the heater 12 rises to 45°C, the controller can determine that the current actual temperature value is the second temperature value, so as to take the power supply duration of a single alternating current cycle corresponding to the second temperature value in the preset temperature power supply duration mapping relationship as the power supply duration of a single alternating current cycle corresponding to the current actual temperature value, that is, to increase the power supply duration of a single alternating current cycle from 8 ms to 12 ms, so as to make the speed of the fan 11 increase synchronously when the temperature value of the heater 12 increases.

[0098] In another exemplary embodiment, the preset temperature power supply duration mapping relationship includes a plurality of temperature intervals and a power supply duration of a single alternating current cycle corresponding to each of the plurality of temperature intervals, and the controller is configured to perform the following steps:

[0099] determining a target temperature interval in the preset temperature power supply duration mapping relationship according to the actual temperature value;

[0100] obtaining a power supply duration of a single alternating current cycle corresponding to the target temperature interval in the preset temperature power supply duration mapping relationship based on the target temperature interval, and taking the obtained power supply duration of a single alternating current cycle as the power supply duration of a single alternating current cycle corresponding to the actual temperature value.

[0101] In order to make the preset temperature power supply duration mapping relationship include a plurality of temperature intervals and a power supply duration of a single alternating current cycle corresponding to each of the plurality of temperature intervals, in one example, the controller can be configured to perform the following steps:

[0102] detect a setting operation of a preset temperature and power duration mapping relationship in the setting interface;

[0103] In response to the setting operation, the preset temperature and power duration mapping relationship is stored.

[0104] In the setting operation, multiple temperature intervals are included, and the power duration of a single alternating current cycle corresponding to each temperature interval is included.

[0105] It should be noted that the higher the average temperature value corresponding to the temperature interval, the higher the efficiency of the heater 12 in heating the air outlet of the fan 11. That is, the higher the average temperature value corresponding to the temperature interval of the heater 12, the higher the speed of the fan 11 can be adjusted, thereby improving the drying efficiency of the clothes treatment device.

[0106] Therefore, the higher the average temperature value corresponding to the temperature interval in the preset temperature and power duration mapping relationship, the longer the power duration of a single alternating current cycle, that is, the higher the alternating voltage of the driving circuit driving the fan 11 to rotate, and the higher the speed of the corresponding fan 11, thereby achieving the purpose of adjusting the speed of the fan 11 corresponding to the higher temperature value of the heater 12.

[0107] For example, in the setting operation, a first temperature interval, a second temperature interval, and a third temperature interval are added, and the temperature values corresponding to the first temperature interval, the second temperature interval, and the third temperature interval are 0-40℃, 41-45℃, and 46-50℃, respectively. If the time duration of a single alternating current cycle is 20ms, then the power duration of a single alternating current cycle corresponding to the first temperature interval is 8ms, the power duration of a single alternating current cycle corresponding to the second temperature interval is 12ms, and the power duration of a single alternating current cycle corresponding to the third temperature interval is 18ms. Therefore, the higher the average temperature value of the temperature interval, the higher the speed of the fan 11 is adjusted.

[0108] In the embodiments of the present application, based on the multiple temperature intervals included in the preset temperature and power duration mapping relationship and the power duration of a single alternating current cycle corresponding to each temperature interval, the controller can determine a target temperature interval in the preset temperature and power duration mapping relationship according to the actual temperature value.

[0109] In one example, after obtaining the actual temperature value of the heater 12 detected by the sensor assembly 13, the controller can determine the temperature interval in which the actual temperature value is located based on the actual temperature value among the multiple temperature intervals included in the preset temperature and power duration mapping relationship, and then determine the determined temperature interval as the target temperature interval.

[0110] In the embodiments of the present application, after the target temperature range is determined, the controller can obtain the power supply duration of a single alternating current cycle corresponding to the target temperature range in the preset temperature power supply duration mapping relationship, and take the obtained power supply duration of a single alternating current cycle as the power supply duration of a single alternating current cycle corresponding to the actual temperature value.

[0111] With reference to the above example, the preset temperature power supply duration mapping relationship includes a first temperature range, a second temperature range and a third temperature range; and the power supply duration of a single alternating current cycle corresponding to the first temperature range is 8 ms, the power supply duration of a single alternating current cycle corresponding to the second temperature range is 12 ms, and the power supply duration of a single alternating current cycle corresponding to the third temperature range is 18 ms. If the controller obtains the actual temperature value of the heater 12 detected by the sensor assembly 13 as 40°C, then according to the actual temperature value, the target temperature range determined in the preset temperature power supply duration mapping relationship is the first temperature range, and accordingly, the power supply duration of a single alternating current cycle corresponding to the first temperature range in the preset temperature power supply duration mapping relationship is 8 ms, that is, the power supply duration of a single alternating current cycle obtained according to the actual temperature value is 8 ms.

[0112] In addition, when the current actual temperature value of the heater 12 rises to 42°C, the controller can determine that the current actual temperature value is in the second temperature range, so as to take the power supply duration of a single alternating current cycle corresponding to the second temperature range in the preset temperature power supply duration mapping relationship as the power supply duration of a single alternating current cycle corresponding to the current actual temperature value, that is, to increase the power supply duration of a single alternating current cycle from 8 ms to 12 ms, so as to make the speed of the fan 11 increase synchronously when the temperature value of the heater 12 increases to a certain range.

[0113] By the above-mentioned embodiments, the multiple temperature intervals are added in the preset temperature power duration mapping relationship, and the power duration of a single alternating current cycle corresponding to each of the multiple temperature intervals; on the one hand, the controller can first determine the target temperature interval in the preset temperature power duration mapping relationship according to the actual temperature value, and then obtain the power duration of a single alternating current cycle corresponding to the target temperature interval in the preset temperature power duration mapping relationship, and take the obtained power duration of a single alternating current cycle as the power duration of an alternating current cycle corresponding to the working temperature, so that the controller can obtain the power duration of a single alternating current cycle corresponding to the actual temperature value according to the actual temperature value of the heater 12 and the preset temperature power duration mapping relationship; on the other hand, by dividing the multiple temperature intervals and setting the power duration of a single alternating current cycle corresponding to each of the multiple temperature intervals, the controller can avoid adjusting the power duration of a single alternating current cycle when the actual temperature value of the heater 12 fluctuates temporarily; at the same time, the frequency of adjusting the power duration of a single alternating current cycle by the controller is also reduced, and the processing performance requirement of the controller is also reduced, thereby saving the production cost.

[0114] In another exemplary embodiment, the laundry treating apparatus further includes a second timer.

[0115] The second timer is configured to count time from a point in time when the laundry treating apparatus enters the drying mode.

[0116] Since the laundry treating apparatus in the drying mode usually sets a corresponding drying temperature before drying the laundry to be treated, and the heater 12 stops heating when the actual temperature value of the heater 12 reaches the drying temperature corresponding to the drying mode, the heater 12 maintains the current temperature, and the controller does not need to adjust the rotation speed of the blower 11.

[0117] To achieve the above-mentioned purpose, the controller is electrically connected with the second timer to obtain the counting condition of the second timer. In addition, the controller is further configured to perform the following steps:

[0118] If the counting time of the second timer does not reach the preset entering time, the actual temperature value of the heater detected by the sensor assembly is obtained.

[0119] The preset entering time represents the time required for the heater 12 to heat up to the drying temperature set by the current drying mode. The preset entering time can be flexibly adjusted according to the size of the drying temperature set by the drying mode, which is not limited herein.

[0120] In the embodiments of the present application, when the laundry treating apparatus enters the drying mode, the controller can obtain the timing condition of the second timer, if the timing duration of the second timer does not reach the preset entering duration, it means that the actual temperature value of the heater 12 has not reached the drying temperature set in the current drying mode, and then the actual temperature value of the heater 12 detected by the sensor assembly 13 is obtained.

[0121] Through the above-mentioned embodiments, the controller obtains the actual temperature value of the heater 12 detected by the sensor assembly 13 according to the timing condition of the second timer timing from the time point when the laundry treating apparatus enters the drying mode, so as to avoid continuously obtaining the actual temperature value of the heater 12 detected by the sensor assembly 13 when the actual temperature value of the heater 12 reaches the drying temperature set in the drying mode and the heater 12 stops heating, i.e. when the timing duration of the second timer reaches the preset duration, thereby causing invalid adjustment of the rotation speed of the blower 11, resulting in waste of resources.

[0122] In another exemplary embodiment, the controller is further configured to perform the following steps:

[0123] If the laundry treating apparatus is in the drying mode, a target detection strategy corresponding to the drying mode is obtained;

[0124] The target detection strategy is sent to the sensor assembly.

[0125] It should be noted that the laundry treating apparatus can set different drying parameters in the drying mode according to the condition of the laundry to be treated for drying the laundry to be treated. The condition of the laundry to be treated includes but is not limited to the weight of the laundry to be treated and the material of the laundry to be treated; the drying parameters include but are not limited to the drying temperature and the drying time.

[0126] The detection strategy is used to control the interval detection duration of the sensor assembly 13 detecting the actual temperature value of the heater 12. However, since the drying parameters of the drying mode can be adjusted according to the different conditions of the laundry to be treated, the detection strategies corresponding to the drying modes under different drying parameters are also different, and then the target detection strategy represents the detection strategy corresponding to the current drying mode.

[0127] In addition, the higher the precision requirement of the clothes treatment apparatus for controlling the rotating speed of the blower 11 according to the actual temperature value of the heater 12, the shorter the interval detection duration of the control sensor assembly 13 in the detection strategy for detecting the actual temperature value of the heater 12 is adjusted, and accordingly, the frequency of the controller for adjusting the rotating speed of the blower 11 according to the actual temperature value is higher, so as to improve the matching degree between the rotating speed of the blower 11 and the actual temperature value of the heater 12, so as to shorten the drying time, and thus improve the user's satisfaction with the clothes treatment apparatus.

[0128] In the embodiments of the present application, the controller obtains a target detection strategy corresponding to the drying mode if it is determined that the clothes treatment apparatus is in the drying mode.

[0129] In one example, the target detection strategy corresponding to the drying mode can be obtained by first obtaining a drying parameter corresponding to the drying mode, then determining a corresponding detection strategy from the preset detection strategy database according to the drying parameter, and taking the determined detection strategy as the target detection strategy corresponding to the drying mode. That is, the preset detection strategy database pre-stores detection strategies corresponding to different drying parameters respectively.

[0130] In the embodiments of the present application, after the controller obtains the target detection strategy, the target detection strategy can be sent to the sensor assembly 13, so that the sensor assembly 13 detects the actual temperature value of the heater 12 based on the target detection strategy.

[0131] For example, when the interval detection duration contained in the target detection strategy corresponding to the drying mode is 5 ms, the controller sends the target detection strategy to the sensor assembly 13 after obtaining the target detection strategy corresponding to the drying mode after determining that the clothes treatment apparatus enters the drying mode, so that the sensor assembly 13 detects the actual temperature value of the heater 12 every 5 ms, thereby reducing the detection frequency of the sensor assembly 13 for the actual temperature value of the heater 12, saving resource consumption, and at the same time, due to the reduction of the detection frequency, the frequency of the controller for adjusting the rotating speed of the blower 11 according to the actual temperature value is also reduced, thereby reducing the processing performance requirement of the controller, so as to save production cost.

[0132] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.

[0133] It is to be understood that the application is not limited to the precise construction already described above and shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application should only be limited by the claims appended hereto.

Claims

1.A laundry treating apparatus, characterized by, The laundry treatment apparatus comprises: a driving circuit and a fan connected to each other, both of which are arranged in the laundry treatment apparatus, and the fan is configured to rotate to blow air under the driving of the driving circuit; a heater arranged in the laundry treatment apparatus at a position corresponding to an air outlet of the fan, and configured to heat the air blown by the fan under the driving of the driving circuit; a sensor assembly configured to detect an actual temperature value of the heater; a controller configured to perform the following steps: if the laundry treatment apparatus is in a drying mode, obtaining the actual temperature value of the heater detected by the sensor assembly; based on a preset temperature-supplied time length mapping relationship, obtaining a supplied time length of a single alternating current cycle corresponding to the actual temperature value; controlling the conduction of the driving circuit and the alternating current power supply based on the supplied time length of the single alternating current cycle to control the alternating current voltage of the driving circuit, and driving the rotation of the fan by the driving circuit corresponding to the alternating current voltage during the conduction. 2.The laundry treating apparatus of claim 1, wherein The laundry treatment apparatus further comprises: a zero-crossing circuit connected in parallel between the driving circuit and the alternating current power supply, and the zero-crossing circuit is configured to rectify and divide the voltage output by the alternating current power supply, and generate a zero-crossing signal when the voltage after division reaches a preset conduction voltage value; the controller is further configured to perform the following steps: if the laundry treatment apparatus is in a drying mode and the zero-crossing circuit generates a zero-crossing signal, obtaining the actual temperature value of the heater detected by the sensor assembly. 3.The laundry treating apparatus according to claim 1, wherein, The laundry treatment apparatus further comprises: a first timer configured to count from a starting time point of each alternating current cycle; the supplied time length of the single alternating current cycle comprises a plurality of supplied time lengths; the controller is further configured to perform the following steps: from the start of counting by the first timer, control the conduction of the driving circuit and the alternating current power supply to control the alternating current voltage of the driving circuit, and drive the rotation of the fan by the driving circuit corresponding to the alternating current voltage during the conduction; if the counting time length of the first timer reaches the supplied time length, control the disconnection of the driving circuit and the alternating current power supply; after the driving circuit and the alternating current power supply are disconnected for a specified time length, the first timer re-counts from the current time point of the alternating current cycle, and jumps to execute the step of controlling the conduction of the driving circuit and the alternating current power supply from the start of counting by the first timer. 4.The laundry treating apparatus according to claim 1, wherein, The laundry treatment apparatus further comprises: a first timer configured to count from a starting time point of each alternating current cycle; the controller is further configured to perform the following steps: from the start of counting by the first timer, control the conduction of the driving circuit and the alternating current power supply to control the alternating current voltage of the driving circuit, and drive the rotation of the fan by the driving circuit corresponding to the alternating current voltage during the conduction; if the counting time length of the first timer reaches the supplied time length of the single alternating current cycle, control the disconnection of the driving circuit and the alternating current power supply. 5.The laundry treating apparatus according to claim 1, wherein, The preset temperature-to-power duration mapping relationship includes a plurality of temperature values, and a power duration of a single alternating current cycle corresponding to each of the plurality of temperature values; The controller is further configured to perform the following steps: determining a target temperature value corresponding to the actual temperature value in the preset temperature-to-power duration mapping relationship; obtaining a power duration of a single alternating current cycle corresponding to the target temperature value in the preset temperature-to-power duration mapping relationship, and taking the obtained power duration of a single alternating current cycle as the power duration of a single alternating current cycle corresponding to the actual temperature value. 6.The laundry treating apparatus according to claim 5, wherein, The controller is further configured to perform the following steps: detecting a setting operation for the preset temperature-to-power duration mapping relationship in a setting interface; wherein the setting operation includes a plurality of temperature values, and a power duration of a single alternating current cycle corresponding to each of the plurality of temperature values, and the higher the temperature value, the longer the corresponding power duration of a single alternating current cycle; in response to the setting operation, storing the preset temperature-to-power duration mapping relationship. 7.The laundry treating apparatus according to claim 1, wherein, The preset temperature-to-power duration mapping relationship includes a plurality of temperature intervals, and a power duration of a single alternating current cycle corresponding to each of the plurality of temperature intervals; The controller is further configured to perform the following steps: determining a target temperature interval in which the actual temperature value is located in the preset temperature-to-power duration mapping relationship; obtaining a power duration of a single alternating current cycle corresponding to the target temperature interval in the preset temperature-to-power duration mapping relationship, and taking the obtained power duration of a single alternating current cycle as the power duration of a single alternating current cycle corresponding to the actual temperature value. 8.The laundry treating apparatus of claim 7, wherein, The controller is further configured to perform the following steps: detecting a setting operation for the preset temperature-to-power duration mapping relationship in a setting interface; wherein the setting operation includes a plurality of temperature intervals, and a power duration of a single alternating current cycle corresponding to each of the plurality of temperature intervals, and the higher the average temperature value corresponding to the temperature interval, the longer the corresponding power duration of a single alternating current cycle; in response to the setting operation, storing the preset temperature-to-power duration mapping relationship. 9.The laundry treating apparatus according to any one of claims 1 to 8, wherein, The clothes treatment apparatus further includes: a second timer configured to count time from a time point at which the clothes treatment apparatus enters a drying mode; The controller is further configured to perform the following steps: if the counting duration of the second timer does not reach a preset entering duration, obtaining the working temperature of the heater detected by the sensor assembly. 10.The laundry treating apparatus according to any one of claims 1 through 8, wherein, The controller is further configured to perform the following steps: if the clothes treatment apparatus is in the drying mode, obtaining a target detection strategy corresponding to the drying mode; sending the target detection strategy to the sensor assembly, so that the sensor assembly detects the actual temperature value of the heater based on the target detection strategy.

Citation Information

Patent Citations

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