CN115450027A - Drying control method of clothes processing equipment - Google Patents

Drying control method of clothes processing equipment Download PDF

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Publication number
CN115450027A
CN115450027A CN202211193758.2A CN202211193758A CN115450027A CN 115450027 A CN115450027 A CN 115450027A CN 202211193758 A CN202211193758 A CN 202211193758A CN 115450027 A CN115450027 A CN 115450027A
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CN
China
Prior art keywords
piston
compressor
frequency
stroke
control method
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Pending
Application number
CN202211193758.2A
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Chinese (zh)
Inventor
罗荣邦
崔俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202211193758.2A priority Critical patent/CN115450027A/en
Publication of CN115450027A publication Critical patent/CN115450027A/en
Priority to PCT/CN2023/087427 priority patent/WO2024066290A1/en
Pending legal-status Critical Current

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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/48—Control of the energy consumption
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention relates to the technical field of clothes treatment, in particular to a drying control method of clothes treatment equipment. The application aims to solve the problem that the drying speed of the clothes dryer adopting the constant-speed compressor cannot be automatically adjusted. For this purpose, the clothing treatment facility of this application includes the variable-capacitance variable-frequency compressor, and the variable-capacitance variable-frequency compressor includes the cylinder body and sets up the piston in the cylinder body, and the travel of piston is adjustable. The control method comprises the following steps: determining the optimal air displacement of the compressor according to the information of the clothes to be dried; acquiring an initial stroke of a piston; controlling a piston of the compressor to run according to an initial stroke and adjusting the frequency of the compressor to enable the actual displacement of the compressor to be equal to the optimal displacement or the difference value of the actual displacement and the optimal displacement to be within a preset difference value range; acquiring the current frequency of the compressor and judging whether the current frequency is in a preset frequency interval or not; and selectively adjusting the moving stroke of the piston according to the judgment result. But this application automatically regulated stoving speed, drying efficiency is high, and energy-conservation.

Description

Drying control method of clothes processing equipment
Technical Field
The invention relates to the technical field of clothes treatment, in particular to a drying control method of clothes treatment equipment.
Background
Along with the improvement of living standard, more and more families buy the clothes dryer, use the convenient and convenient again of clothes dryer. For the clothes dryer, the heat pump type clothes dryer is a mainstream product in the market due to the characteristics of high working efficiency and the like.
However, the compressors used by the heat pump type clothes dryer in the current market are constant-speed compressors, the frequency and the discharge capacity are fixed, and the drying speed cannot be automatically adjusted according to the needs of users. Thus, in the case that the clothes to be dried are much or the clothes are worn urgently, the drying time is long, and the time is greatly wasted. When a piece of clothes or small articles are dried, the defect of high power consumption exists, and users complain about the problem.
Accordingly, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
In order to solve at least one problem in the prior art, namely to solve the problem that the drying speed of the existing clothes dryer adopting a constant-speed compressor cannot be automatically adjusted, the application provides a drying control method of clothes treatment equipment, the clothes treatment equipment comprises a box body, a drying air duct, a variable-capacity variable-frequency compressor, a condenser, a throttling device and an evaporator, the box body is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively communicated with the drying air duct, the variable-capacity variable-frequency compressor, the condenser, the throttling device and the evaporator are sequentially connected through a refrigerant pipeline, the condenser and the evaporator are arranged in the drying air duct, the variable-capacity variable-frequency compressor comprises a cylinder body and a piston arranged in the cylinder body in a sliding manner, and the moving stroke of the piston in the cylinder body is adjustable,
the control method comprises the following steps:
determining the optimal air displacement of the compressor according to the information of the clothes to be dried;
acquiring an initial stroke of the piston;
controlling a piston of the compressor to operate according to the initial stroke and adjusting the frequency of the compressor, so that the actual displacement of the compressor is equal to the optimal displacement, or the difference between the actual displacement and the optimal displacement is within a preset difference range;
acquiring the current frequency of the compressor, and judging whether the current frequency is in a preset frequency interval;
and selectively adjusting the moving stroke of the piston according to the judgment result.
In a preferred embodiment of the drying control method of the laundry processing apparatus, the step of "selectively adjusting the moving stroke of the piston according to the judgment result" further includes:
if the current frequency is in the preset frequency interval, controlling the compressor to continuously run at the current frequency;
and if the current frequency is not in the preset frequency interval, adjusting the moving stroke of the piston.
In a preferable embodiment of the drying control method of the laundry processing apparatus, the step of adjusting the moving stroke of the piston if the current frequency is not in the preset frequency interval further includes:
if the current frequency is smaller than the minimum value of the preset frequency interval, reducing the moving stroke of the piston;
and if the current frequency is greater than the maximum value of the preset frequency interval, increasing the moving stroke of the piston.
In a preferable embodiment of the drying control method of the laundry processing apparatus, the preset frequency interval is determined based on an optimal efficiency frequency of the compressor.
In a preferable embodiment of the drying control method of the laundry treatment apparatus, the step of reducing the moving stroke of the piston further includes:
the stroke to be reduced by the piston is calculated by the following formula:
La＝L0×[(fn-2)/fn]
wherein La is the stroke to which the piston needs to be reduced; l0 is the initial stroke; fn is the optimum efficiency frequency; (fn-2) is the minimum value of the preset frequency interval.
In a preferable embodiment of the drying control method of the laundry treatment apparatus, the step of increasing the moving stroke of the piston further includes:
the stroke to which the piston needs to be increased is calculated by the following formula:
Lb＝L0×[(fn+2)/fn]
wherein Lb is the stroke to which the piston needs to be increased; l0 is the initial stroke; fn is the optimum efficiency frequency; (fn + 2) is the maximum value of the preset frequency interval.
In a preferable embodiment of the drying control method of the laundry processing apparatus, the control method further includes:
acquiring a drying gear;
and determining the initial stroke of the piston according to the drying gear.
In a preferable embodiment of the drying control method of the laundry processing apparatus described above, the step of "determining an optimum discharge air amount of the compressor according to information of laundry to be dried" further includes:
acquiring the weight and the volume of clothes to be dried;
and determining the optimal air displacement of the compressor according to the weight and the volume of the clothes to be dried.
In a preferred embodiment of the drying control method of the laundry processing apparatus described above, the actual exhaust air amount is calculated and determined by the following formula:
Q＝f×L×π×(d/2) 2
wherein Q is the actual displacement; f is the frequency of the compressor; l is the moving stroke of the piston; d is the diameter of the cylinder.
In a preferred embodiment of the drying control method of the laundry treating apparatus, the piston is connected to an adjustable elastic spring, and the step of "adjusting a moving stroke of the piston" further includes:
the moving stroke of the piston is adjusted by adjusting the elastic force of the adjustable elastic spring.
Through setting up varactor inverter compressor, the clothing treatment facility of this application can be through adjusting the displacement and the operating frequency of compressor automatically regulated stoving speed to make the compressor frequency operate near peak or the peak of efficiency as far as possible, drying efficiency is high, and the energy saving.
Drawings
The drying control method of the laundry treating apparatus of the present application is described below with reference to the accompanying drawings. In the drawings:
FIG. 1 is a system schematic of a laundry treatment apparatus of the present application;
fig. 2 is a flowchart of a drying control method of a laundry treating apparatus of the present application;
fig. 3 is a graph of frequency versus operating efficiency for the compressor of the present application.
List of reference numerals
1. A variable capacity variable frequency compressor; 11. a cylinder body; 12. a piston; 13. an elastic spring; 2. a condenser; 3. a throttling device; 4. an evaporator; 5. a box body.
Detailed Description
Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present application, and are not intended to limit the scope of protection of the present application. For example, although the following embodiments describe the steps in the above sequential order, those skilled in the art can understand that, in order to achieve the effect of the present embodiments, the different steps need not be executed in such an order, and they may be executed simultaneously (in parallel) or executed in an inverted order, and these simple changes are all within the protection scope of the present application.
First, referring to fig. 1 and 2, a drying control method of a laundry treating apparatus of the present application will be described. Wherein, fig. 1 is a system schematic diagram of a laundry treating apparatus of the present application; fig. 2 is a flowchart of a drying control method of a laundry treatment apparatus according to the present application.
In order to solve the problem that the drying speed of the existing clothes dryer adopting the constant-speed compressor 1 cannot be automatically adjusted, the application provides a drying control method of clothes processing equipment. As shown in fig. 1, the clothes processing apparatus includes a box 5, a drying air duct, a variable-capacity variable-frequency compressor 1, a condenser 2, a throttling device 3, and an evaporator 4, wherein the box 5 has an air inlet and an air outlet, the air inlet and the air outlet are respectively communicated with the drying air duct, the variable-capacity variable-frequency compressor 1, the condenser 2, the throttling device 3, and the evaporator 4 are sequentially connected through a refrigerant pipeline, the condenser 2 and the evaporator 4 are disposed in the drying air duct, the variable-capacity variable-frequency compressor 1 includes a cylinder 11 and a piston 12 slidably disposed in the cylinder 11, and a moving stroke of the piston 12 in the cylinder 11 is adjustable. Specifically, the drying air duct, the compressor 1, the condenser 2, the throttling device 3 and the evaporator 4 form a conventional drying loop, and the connection relationship between the components and the drying principle are conventional means in the field, and are not described herein again. In particular, the compressor 1 of the present application employs a variable capacity variable frequency compressor 1, the compressor 1 having a cylinder block 11 and a piston 12, the piston 12 achieving the purpose of compression by reciprocating within the cylinder block 11. Wherein the displacement stroke of the piston 12 is adjustable, in other words the maximum displacement of the sliding of the piston 12 within the cylinder 11 is adjustable, i.e. L in fig. 1 is variable.
Further, in the present application, an elastic spring 13 is connected to an end of the piston 12 away from the cylinder 11, and a moving stroke of the piston 12 is adjusted by the elastic spring 13. The present application does not limit the specific form of the elastic spring 13, and may be applied to the present application as long as the elastic force thereof is automatically adjusted. For example, the elastic spring 13 may be an electromagnetic spring, an air spring, a gas spring, a mechanically adjustable elastic spring 13, and the like, and the moving stroke L of the piston 12 in the cylinder 11 is adjusted by adjusting the elastic force of the elastic spring 13.
Of course, besides the above-mentioned adjustable stroke of the piston 12, a person skilled in the art may select other variable-capacity variable-frequency compressors 1 to replace them, so that the present application is suitable for more specific application scenarios. For example, a pressure-variable capacity-variable compressor with an adjustable cylinder 11 volume may be adopted by those skilled in the art, or the compressor 1 may be adjusted by other manners of moving stroke, for example, by controlling the extension and retraction length/forward and backward rotation angle of the motor shaft, so as to control the moving stroke of the piston 12.
Referring to fig. 2, in the above setting, the drying control method of the laundry processing apparatus of the present application includes:
s101, determining the optimal air displacement of the compressor according to the information of the clothes to be dried. For example, the information about the laundry to be dried may include one or more of the number, volume and weight of the laundry, and the number of the laundry may be obtained based on a user input or determined based on image recognition; the volume of clothing may be determined based on image recognition or estimated from the type of clothing input by the user; the weight of the clothes can be obtained based on the weight sensor, and can also be determined based on parameters such as current when the box rotates. After the information of the clothes to be dried is determined, the optimal air displacement of the compressor is determined based on the information of the clothes to be dried, wherein the determination mode can be a fitting formula, an empirical formula, a comparison relation table and the like, and the determination mode is not limited in the application.
S103, acquiring an initial stroke of the piston; for example, the initial stroke of the piston may be user input, preset, or determined according to a table of the initial stroke and other parameters, such as information about laundry to be dried, a drying gear, etc.
And S105, controlling a piston of the compressor to run according to an initial stroke and adjusting the frequency of the compressor, so that the actual air displacement of the compressor is equal to the optimal air displacement, or the difference between the actual air displacement and the optimal air displacement is in a preset difference range. For example, in the present application, the actual displacement during the operation of the compressor is positively correlated with the initial stroke of the piston and the frequency of the compressor. After the optimal displacement and the initial stroke are determined, the elasticity of the elastic spring is adjusted, so that the compressor piston is controlled to operate according to the initial stroke, then the frequency of the compressor is adjusted, and the actual displacement of the compressor is obtained until the actual displacement of the compressor is equal to the optimal displacement or the difference value between the actual displacement of the compressor and the optimal displacement is within a preset difference value range. Wherein the preset difference range is preset in advance.
S107, acquiring the current frequency of the compressor, and judging whether the current frequency is in a preset frequency interval. For example, when the actual displacement of the compressor reaches the optimal displacement or the difference between the actual displacement and the optimal displacement is within the preset difference range, the current frequency of the compressor at the moment is obtained, whether the current frequency is within the preset frequency interval is judged, and the magnitude between the current frequency and the maximum value and the minimum value in the preset frequency interval is compared by calculating the difference or the ratio. The preset frequency interval is determined based on the optimal efficiency frequency of the compressor, and if the preset frequency interval is a certain amount of fluctuation of the optimal efficiency frequency. Referring to fig. 3, the optimum efficiency frequency is a frequency at which the compressor has the highest operating efficiency, and the frequency may be a rated frequency or other frequencies.
And S109, selectively adjusting the moving stroke of the piston according to the judgment result. For example, when the current frequency is in the preset frequency interval, the moving stroke of the piston is not adjusted; and when the current frequency is not in the preset frequency interval, adjusting the moving stroke of the piston, thereby indirectly adjusting the operating frequency of the compressor by adjusting the moving stroke of the piston, so that the working frequency of the compressor can be close to or reach the optimal efficiency frequency.
Through setting up varactor inverter compressor, the clothing treatment facility of this application can be through adjusting the displacement and the operating frequency of compressor automatically regulated stoving speed to make the compressor frequency operate near peak or the peak of efficiency as far as possible, drying efficiency is high, and the energy saving.
The preferred embodiment of the present application will be described below taking an example in which the laundry treating apparatus is a clothes dryer.
In a preferred embodiment, the step of selectively adjusting the moving stroke of the piston according to the judgment result further comprises: if the current frequency is in the preset frequency interval, controlling the compressor to continuously run at the current frequency; and if the current frequency is not in the preset frequency interval, adjusting the moving stroke of the piston.
For example, the predetermined efficiency interval may be (fn-2, fn + 2), where fn is the optimal efficiency frequency. If the current frequency is in the preset frequency interval, the working frequency of the compressor is proved to be the optimal efficiency frequency or be close to the optimal efficiency frequency, the working efficiency of the compressor is the highest, the clothes drying efficiency is high, the power consumption is low, the moving stroke of the piston does not need to be adjusted, and the compressor is controlled to continuously operate at the current frequency. On the contrary, if the current frequency is not in the preset frequency interval, the difference between the working frequency of the compressor and the optimal efficiency frequency is proved, the compressor does not work at the optimal efficiency, at the moment, the clothes dryer has low working efficiency and high power consumption, and the moving stroke of the piston needs to be adjusted to change the working frequency of the compressor, so that the compressor works near the optimal efficiency.
Of course, the preset efficiency interval is not constant, and those skilled in the art can adjust the specific range according to the requirement as long as the range is ensured to be near the optimal efficiency frequency.
Preferably, the step of adjusting the moving stroke of the piston if the current frequency is not in the preset frequency interval further comprises: if the current frequency is smaller than the minimum value of the preset frequency interval, reducing the moving stroke of the piston; and if the current frequency is greater than the maximum value of the preset frequency interval, increasing the moving stroke of the piston.
Specifically, if the current frequency is less than the minimum value of the preset frequency interval, the operating frequency of the compressor needs to be increased, and since the actual displacement of the compressor is positively correlated with the frequency of the compressor and the moving stroke of the piston, if the actual displacement needs to be kept close to or equal to the optimal displacement and the frequency of the compressor is increased, only the moving stroke of the piston needs to be reduced. On the contrary, if the current frequency is greater than the maximum value of the preset frequency interval, the operation frequency of the compressor needs to be reduced, and at the moment, the moving stroke of the piston only needs to be increased.
In a preferred embodiment, the step of reducing the moving stroke of the piston further comprises: the stroke to be reduced by the piston is calculated by the following formula:
La＝L0×[(fn-2)/fn] (1)
in the formula (1), la is the stroke of the piston to be reduced; l0 is an initial stroke; fn is the optimum efficiency frequency; (fn-2) is the minimum value of the preset frequency interval.
In a preferred embodiment, the step of increasing the travel of the piston further comprises: the stroke to which the piston needs to be increased is calculated by the following formula:
L＝L0×[(fn+2)/fn] (2)
in the formula (2), L is the stroke to which the piston needs to be increased; l0 is an initial stroke; fn is the optimum efficiency frequency; (fn + 2) is the maximum value of the preset frequency interval.
By adopting the formulas (1) and (2) to calculate the stroke of the piston needing to be increased or decreased, the frequency of the compressor can be stably adjusted until the compressor runs to the optimal efficiency frequency or the vicinity of the optimal efficiency frequency, so that the working efficiency of the clothes dryer is improved, and the energy consumption is reduced.
In a preferred embodiment, the control method further includes: acquiring a drying gear; and determining the initial stroke of the piston according to the drying gear.
Specifically, the drying gear is selected by the user, or the clothes dryer is determined according to the information of the clothes to be dried, which reflects the drying speed and efficiency required by the user. And each drying gear corresponds to the initial stroke of a piston, and when the drying gear is determined, the initial stroke of the piston is also determined immediately. The drying gear and the initial stroke of the piston are determined through a comparison relation table or according to an empirical formula or a piecewise function and the like.
By determining the initial stroke of the piston based on the drying gear, the control method can determine the initial stroke of the piston according to the drying speed and efficiency required by a user, so that the compressor can reach the optimal operation frequency more easily when operating with the initial stroke, thereby reducing the adjustment time and improving the operation efficiency.
In a preferred embodiment, the step of determining the optimal displacement of the compressor according to the information of the laundry to be dried further comprises: acquiring the weight and the volume of clothes to be dried; and determining the optimal air displacement of the compressor according to the weight and the volume of the clothes to be dried.
For example, after the laundry to be dried is put into the cabinet, the weight and volume of the laundry to be dried are obtained, for example, the weight of the laundry to be dried is obtained by using a weight sensor, the volume of the laundry to be dried is estimated by taking a picture of the laundry in the cabinet and according to an image recognition technology, and the above-mentioned manner of estimating the weight and volume is common in the art, and therefore, the detailed description thereof is omitted. And after the weight and the volume of the clothes to be dried are obtained, determining the optimal air displacement of the compressor according to the weight and the volume. Preferably, the optimum discharge amount is determined based on a table of a correlation between the volume and weight of the laundry with drying and the optimum discharge amount of the compressor. The comparison relation table can be obtained through a large number of experiments, and the exhaust air volume when the clothes to be dried achieve the optimal efficiency and the drying effect under the conditions of different weights and volumes is determined through the experiments to be used as the optimal exhaust air volume.
Of course, the optimal displacement may be obtained by fitting a formula, a piecewise function, etc. besides the comparison table, and the specific formula and the function mode thereof may also be determined based on experiments, which is not described herein again.
In a preferred embodiment, the actual displacement is determined by the following formula:
Q＝f×L×π×(d/2) 2 (3)
in the formula (3), Q is the actual displacement in m 3 S; f is the frequency of the compressor in Hz; l is the moving stroke of the piston and has the unit of m; d is the diameter of the cylinder in m.
The actual displacement is calculated through the formula (3), the actual displacement of the compressor can be accurately obtained, and the control precision of the control method is improved.
In a preferred embodiment, the piston is connected to an adjustable elastic spring, and the step of "adjusting the moving stroke of the piston" further includes: the moving stroke of the piston is adjusted by adjusting the elastic force of the adjustable elastic spring.
As described above, the elastic force of the elastic spring can be adjusted in various ways, and after the stroke of the piston that needs to be increased or decreased is calculated, the elastic force of the elastic spring is adjusted by adjusting the elastic force of the elastic spring, for example, by adjusting the current of the electromagnetic spring, the air pressure of the air spring, the position of the push plate/inner push rod of the mechanically adjustable spring, and the like, so as to adjust the moving stroke of the piston.
The moving stroke of the piston is adjusted by adjusting the elastic force of the elastic spring, so that the accurate adjustment of the moving stroke of the piston can be realized, and the compressor can finally run to the optimal efficiency frequency.
One possible control procedure of the present application is described below.
And the user puts clothes to be dried into the clothes dryer and starts to operate the clothes dryer after selecting a drying gear. At the moment, a weight sensor in the barrel detects the weight of the clothes to be dried, an image sensor detects the volume of the clothes to be dried, the corresponding optimal air displacement is selected from a comparison table according to the weight and the volume of the clothes to be dried, and the initial stroke of the air cylinder is selected for the first time according to the gear. The compressor start-up operation is then controlled based on the optimum displacement and the initial stroke. And after the actual displacement of the compressor reaches the optimal displacement, judging whether the operating frequency f of the compressor meets the condition that fn-2 is more than or equal to f and is less than or equal to fn +2. If yes, the compressor keeps the existing frequency to continue running until the drying program is finished. If not, adjusting the stroke of the cylinder, if f is less than fn-2, reducing the stroke of the cylinder to enable the stroke to be changed into La = L0 x [ (fn-2)/fn ], and then continuing to return to judgment; if f is more than fn +2, the cylinder stroke is increased to be Lb = L0 x [ (fn + 2)/fn ], the operation and detection are continued after the adjustment until the compressor is operated to the optimal efficiency interval, and then the state is kept to be operated until the drying program is finished.
It will be appreciated by those skilled in the art that although the above embodiments are described in conjunction with a clothes dryer, this is not intended to limit the scope of the application, and those skilled in the art can apply the above control method to other application scenarios to improve the applicability of the present application without departing from the principles of the present application. For example, the application can also be applied to washing and drying integrated machines and the like.
Various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of the server, client, or both, in accordance with embodiments of the present application. The present application may also be embodied as an apparatus or device program (e.g., PC program and PC program product) for carrying out a part or all of the methods described herein. Such a program implementing the present application may be stored on a PC readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website, or provided on a carrier signal, or provided in any other form.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims of the present application, any of the claimed embodiments may be used in any combination.
It should be noted that although the detailed steps of the method of the present application have been described in detail, those skilled in the art can combine, separate and change the order of the above steps without departing from the basic principle of the present application, and the modified technical solution does not change the basic concept of the present application and therefore falls into the protection scope of the present application.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims (10)

1. The drying control method of the clothes treatment equipment is characterized in that the clothes treatment equipment comprises a box body, a drying air channel, a variable-capacity variable-frequency compressor, a condenser, a throttling device and an evaporator, wherein the box body is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively communicated with the drying air channel, the variable-capacity variable-frequency compressor, the condenser, the throttling device and the evaporator are sequentially connected through refrigerant pipelines, the condenser and the evaporator are arranged in the drying air channel, the variable-capacity variable-frequency compressor comprises a cylinder body and a piston arranged in the cylinder body in a sliding manner, the moving stroke of the piston in the cylinder body is adjustable,
the control method comprises the following steps:
determining the optimal air displacement of the compressor according to the information of the clothes to be dried;
acquiring an initial stroke of the piston;
controlling a piston of the compressor to operate according to the initial stroke and adjusting the frequency of the compressor, so that the actual displacement of the compressor is equal to the optimal displacement, or the difference between the actual displacement and the optimal displacement is within a preset difference range;
acquiring the current frequency of the compressor, and judging whether the current frequency is in a preset frequency interval;
and selectively adjusting the moving stroke of the piston according to the judgment result.
2. The drying control method of a laundry processing apparatus according to claim 1, wherein the step of selectively adjusting the moving stroke of the piston according to the judgment result further comprises:
if the current frequency is in the preset frequency interval, controlling the compressor to continuously run at the current frequency;
and if the current frequency is not in the preset frequency interval, adjusting the moving stroke of the piston.
3. The drying control method of a laundry processing apparatus according to claim 2, wherein the step of adjusting the moving stroke of the piston if the current frequency is not in the preset frequency interval further comprises:
if the current frequency is smaller than the minimum value of the preset frequency interval, reducing the moving stroke of the piston;
and if the current frequency is greater than the maximum value of the preset frequency interval, increasing the moving stroke of the piston.
4. The drying control method of a laundry treating apparatus according to claim 3, wherein the preset frequency interval is determined based on an optimal efficiency frequency of the compressor.
5. The drying control method of a laundry treating apparatus according to claim 4, wherein the step of reducing the moving stroke of the piston further comprises:
the stroke to be reduced by the piston is calculated by the following formula:
La＝L0×[(fn-2)/fn]
wherein La is the stroke to which the piston needs to be reduced; l0 is the initial stroke; fn is the optimum efficiency frequency; (fn-2) is the minimum value of the preset frequency interval.
6. The drying control method of a laundry treating apparatus according to claim 4, wherein the step of increasing the moving stroke of the piston further comprises:
the stroke to which the piston needs to be increased is calculated by the following formula:
Lb＝L0×[(fn+2)/fn]
wherein Lb is the stroke to which the piston needs to be increased; l0 is the initial stroke; fn is the optimum efficiency frequency; (fn + 2) is the maximum value of the preset frequency interval.
7. The drying control method of a laundry processing apparatus according to claim 1, wherein the control method further comprises:
acquiring a drying gear;
and determining the initial stroke of the piston according to the drying gear.
8. The drying control method of a laundry processing apparatus according to claim 1, wherein the step of determining an optimal discharge air amount of the compressor according to the laundry to be dried information further comprises:
acquiring the weight and the volume of clothes to be dried;
and determining the optimal air displacement of the compressor according to the weight and the volume of the clothes to be dried.
9. The drying control method of a laundry processing apparatus according to claim 1, wherein the actual exhaust air amount is calculated and determined by the following formula:
Q＝f×L×π×(d/2) 2
wherein Q is the actual displacement; f is the frequency of the compressor; l is the moving stroke of the piston; d is the diameter of the cylinder.
10. The drying control method of a laundry treating apparatus according to claim 1, wherein the piston is connected with an adjustable elastic spring, and the step of "adjusting a moving stroke of the piston" further comprises:
the moving stroke of the piston is adjusted by adjusting the elastic force of the adjustable elastic spring.
CN202211193758.2A 2022-09-28 2022-09-28 Drying control method of clothes processing equipment Pending CN115450027A (en)

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BRPI0400108B1 (en) * 2004-01-22 2017-03-28 Empresa Brasileira De Compressores S A - Embraco linear compressor and control method of a linear compressor
CN101776067B (en) * 2009-01-14 2012-11-21 中国科学院理化技术研究所 Clearance setting device for variable capacity regulation of linear compressor
CN104120591B (en) * 2013-04-24 2018-05-01 青岛海尔洗衣机有限公司 A kind of laundry drier control method
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CN115450027A (en) * 2022-09-28 2022-12-09 青岛海尔空调器有限总公司 Drying control method of clothes processing equipment

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WO2024066290A1 (en) * 2022-09-28 2024-04-04 青岛海尔空调器有限总公司 Drying control method of clothes treatment device

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