CN110592890A - Weight detection method for washing machine - Google Patents
Weight detection method for washing machine Download PDFInfo
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- CN110592890A CN110592890A CN201810604321.0A CN201810604321A CN110592890A CN 110592890 A CN110592890 A CN 110592890A CN 201810604321 A CN201810604321 A CN 201810604321A CN 110592890 A CN110592890 A CN 110592890A
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Abstract
The invention discloses a washing machine which comprises a box body shell (1) and a washing drum (2) arranged inside the box body shell (1), wherein the washing drum (2) is connected with the top of the box body shell (1) through a spring (3), at least one gravity sensor (4) is arranged on the spring (3), the gravity sensor is connected with a controller of the washing machine, the controller can receive weight information sent by the gravity sensor, and a weight value recorded by the gravity sensor is a total weight value of the washing machine. The invention has the beneficial effects that: (1) the real weight of the clothes in the washing machine can be detected by the high-precision weight sensor; (2) the weight sensor can be used to detect the weight inside the washing drum under various states of the washing machine.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a method for detecting the weight of a washing machine.
Background
In the washing process of the washing machine product, the problem that the size of the washing clothes is unknown, and the washing clothes has important influence on the washing time, the water inlet quantity and the washing beat, so that the washing clothes quantity is generally determined before washing. The existing methods for detecting the laundry amount mainly comprise two methods, one method is to detect the change of counter electromotive force of a single-phase motor and establish the corresponding relation between the counter electromotive force and the weight of the laundry, the problem of the technology is that the detection accuracy is poor due to the change of external voltage and the difference of the placement of the laundry in a bucket, the other method is to adjust the speed of the motor in an open loop mode, the size of the laundry amount is detected through speed feedback, and the problems of the detection accuracy and the detection consistency are poor.
Because the detection in the prior art is obtained by calculating indirect factors such as motor electromotive force, motor speed and the like and then detecting, the accuracy of the detection data is greatly reduced.
Disclosure of Invention
An object of the present invention is to provide a method for detecting the weight of a washing machine, which enables the weight of the interior of a washing tub to be detected in various states of the washing machine using a high-precision weight sensor.
Specifically, the invention is realized by the following technical scheme:
the utility model provides a washing machine, washing machine includes the box shell, sets up the washing barrel inside the box shell, the washing barrel passes through the spring and is connected with box shell top the spring sets up a gravity sensor at least, gravity sensor is connected with washing machine's controller, the controller can receive the weight information that gravity sensor sent, the weight value that gravity sensor recorded is washing machine's total weight value. A method for detecting the weight of a washing machine with an upward opening door comprises the following steps:
s1: turning on a power supply, and detecting the weight of the current washing machine;
s2: zero adjustment correction is carried out on the weight value;
s3: when the door of the washing machine is detected to be closed and the washing program is detected to be started, reading the weight value of the washing machine detected by the gravity sensor as a clothes weight value;
s4: the washing machine performs a water inlet operation;
s5: the controller reads the water inlet weight value detected by the gravity sensor in real time, judges whether the water inlet weight value is larger than a first water inlet threshold value or not, stops water inlet if the water inlet weight value is larger than the first water inlet threshold value, and then executes S6, continues water inlet if the water inlet weight value is not larger than the first water inlet threshold value, and continues to execute S5;
s6: recording the current water inlet weight value as the washing water weight value;
s7: the washing machine performs a washing operation;
s8: the washing machine judges whether to execute natural drainage operation or spin-drying drainage operation, if the natural drainage operation is executed, the step S9 is executed, if the spin-drying drainage operation is executed, the spin-drying operation is executed, the water inlet operation is executed again, and the step S10 is executed;
s9: judging whether the weight of the discharged water reaches a required threshold value, if so, stopping water discharging, feeding water again, and then executing S10, otherwise, continuing water discharging and judging whether the weight of the discharged water reaches the required threshold value;
s10: judging whether the water inlet weight exceeds a second water inlet threshold value, if so, executing rinsing operation, and if not, continuing water inlet;
s11: judging whether rinsing is finished, if so, performing spin-drying operation, then performing S12, and if not, returning to S8;
s12: judging whether the washing machine door is opened after a preset time, if so, executing S13, and if not, giving an alarm that the clothes are not taken out;
s13: judging whether the weight of the washing machine exceeds the weight threshold of the empty-barrel washing machine in real time, if so, executing S14, and if not, executing S15;
s14: judging whether the washing machine door is closed, if so, giving an alarm that the clothes are not taken out, then returning to the step S12, and if not, executing the step S16;
s15: judging whether the washing machine door is closed, if so, ending, otherwise, giving an alarm of not closing the door, and then continuing to execute S15;
s16: and judging whether the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine, unlocking the door lock if the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine, returning to the step S14, and ending if the weight of the washing machine does not exceed the weight threshold of the empty-tub washing machine.
The invention has the beneficial effects that: (1) the real weight of the clothes in the washing machine can be detected by the high-precision weight sensor; (2) the weight sensor can be used to detect the weight inside the washing drum under various states of the washing machine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an overall structure of a washing machine according to the present invention;
fig. 2 is a schematic flow chart of a method for detecting the weight of a washing machine according to the present invention.
Description of the reference numerals
To further clarify the structure and connection between the various components of the present invention, the following reference numerals are given and described.
A box body shell 1; a washing drum 2; a spring 3; a gravity sensor 4.
The technical scheme of the invention can be more clearly understood and explained by combining the embodiment of the invention through the reference sign description.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The present invention will be described in detail below by way of examples.
A method for detecting the weight of an upward-opening washing machine is disclosed, as shown in figure 1, the washing machine comprises a box body shell 1 and a washing drum 2 arranged inside the box body shell 1, the washing drum 2 is connected with the top of the box body shell 1 through a spring 3, at least one gravity sensor 4 is arranged on the spring 3, the gravity sensor is connected with a controller of the washing machine, the controller can receive weight information sent by the gravity sensor, and the weight value recorded by the gravity sensor is the total weight value of the washing machine, and the method comprises the following steps:
s1: and starting a power supply and detecting the weight of the current washing machine.
S2: and carrying out zero adjustment correction on the weight value.
Because the washing drum is arranged in the box body shell and is connected with the box body shell through the spring, the weight value detected by the gravity sensor is the weight value of the washing drum including the weight value inside the washing drum, and the washing drum is not influenced by external heavy objects. Therefore, the weight of the articles placed on the surface of the washing machine by the user can be prevented from being mistaken for the weight of the washing drum, and zero setting correction can be accurately carried out on the washing machine.
S3: when it is detected that the washing machine door is closed and it is detected that the washing course is opened, the weight value of the washing machine detected by the weight sensor is read as the weight value of the laundry.
The up-opening washing machine of the present invention is designed such that the door cannot be opened without turning on the power, thus preventing the occurrence of laundry in the washing tub without weighing the washing machine. When it is detected that the door of the washing machine is closed and it is detected that the washing program is opened, i.e. the user has placed the laundry completely, the weight weighed is the weight of the laundry placed in the washing tub.
S4: the washing machine performs a water supply operation.
S5: the controller reads the water inlet weight value detected by the gravity sensor in real time, judges whether the water inlet weight value is larger than a first water inlet threshold value or not, stops water inlet if the water inlet weight value is larger than the first water inlet threshold value, and then executes S6, and continues water inlet if the water inlet weight value is not larger than the first water inlet threshold value and then executes S5.
The first water inlet threshold may be a value stored in an internal storage space of the controller, or may be a value received by the controller from the outside, and the first water inlet threshold may be a preset value, or may be a value determined by calculation or logical judgment.
S6: and recording the current water inlet weight value as the washing water weight value.
The washing water weight value may be obtained by subtracting the laundry weight value from the currently recorded gravity sensor weight value.
S7: the washing machine performs a washing operation.
S8: the washing machine judges whether a natural drainage operation or a spin-drying drainage operation is performed, and then performs the step S9 if the natural drainage operation is performed, and then performs the spin-drying operation if the spin-drying drainage operation is performed, and then performs the water inlet operation again, and then performs the step S10.
The washing machine may discharge the washing water in various operation manners, such as a natural drain operation, i.e., a drain valve of the washing machine is opened, so that the sewage having been subjected to the washing of the laundry is naturally discharged under gravity, in which case a certain amount of the sewage inevitably still contained in the laundry cannot be naturally discharged. The spin-drying operation is an operation mode of spin-drying, and sewage in the clothes is discharged as completely as possible.
S9: and judging whether the weight of the discharged water reaches the required threshold value, if so, stopping the water discharge, feeding water again, and then executing S10, otherwise, continuing the water discharge and judging whether the weight of the discharged water reaches the required threshold value.
Along with the natural discharge of washing water, the weight value recorded by the gravity sensor also falls, and when the weight value falls to a required threshold value, the drain valve is closed to stop draining. The required threshold may be a value stored in an internal storage space of the controller, or a value received by the controller from the outside, and the required threshold may be a preset value, or a value determined by calculation or logical judgment.
S10: and judging whether the water inlet weight exceeds a second water inlet threshold value, if so, executing rinsing operation, otherwise, continuing water inlet, and continuing to perform S10 judgment.
The second water inlet threshold may be a value stored in an internal storage space of the controller, or may be a value received by the controller from the outside, and the required threshold may be a preset value, or may be a value determined by calculation or logical judgment.
S11: and judging whether to finish rinsing, if so, performing spin-drying operation, and then performing S12, otherwise, returning to S8.
S12: and judging whether the washing machine door is opened after a preset time, if so, executing S13, and otherwise, giving an alarm that the clothes are not taken out.
After the clothes are dried, the user should take the clothes out of the washing drum in time, and if the user does not take the clothes out after a certain time, the washing machine gives an alarm that the clothes are not taken out, for example, gives a special sound alarm or gives a special graphic light alarm on a display screen of the washing machine. Through the arrangement, a user can take out clothes after washing, and the condition that no clothes exist in the washing drum of the washing machine before next washing is ensured, so that the weighing error caused by forgetting to take the clothes by the user when next washing is avoided as much as possible.
S13: and (4) judging whether the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine in real time, if so, executing S14, and if not, executing S15.
S14: and judging whether the washing machine door is closed, if so, giving an alarm that the clothes are not taken out, then returning to the step S12, and if not, executing the step S16.
If the door of the washing machine is closed at the moment, the user does not take the clothes any more, and because the weight of the washing machine still exceeds the weight threshold value of the empty-tub washing machine at the moment, the user does not take all the clothes out, and at the moment, the washing machine automatically unlocks the door lock, so that the door of the washing machine cannot be closed, and the user is reminded to continue to take the clothes out.
S15: and judging whether the washing machine door is closed, if so, ending, otherwise, giving an alarm of not closing the door, and then continuing to execute S15.
And detecting whether the washing machine door is closed or not, so as to avoid the situation that the user forgets to close the door, if the user forgets to close the door, after an alarm that the door is not closed is given, continuously judging whether the washing machine door is closed or not until the washing machine door is judged to be closed, and ending the program.
S16: and judging whether the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine, unlocking the door lock if the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine, returning to the step S14, and ending if the weight of the washing machine does not exceed the weight threshold of the empty-tub washing machine.
If the judgment result in S16 is yes, it indicates that the door of the washing machine is closed but the laundry is still not exhausted, and the washing machine automatically unlocks the door lock to disable the door of the washing machine, and then returns to S14 to make the judgment; if the result of the determination at S16 is no, it is determined that the door of the washing machine has been closed and the laundry has been completely removed, and the washing machine is no longer overweight, and the routine may be terminated as it is.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides a washing machine, its characterized in that, washing machine includes box shell (1), sets up washing barrel (2) inside box shell (1), washing barrel (2) are connected through spring (3) and box shell (1) top set up at least one gravity sensor (4) on spring (3), gravity sensor is connected with washing machine's controller, the controller can receive the weight information that gravity sensor sent, the weight value that gravity sensor recorded is washing machine's total weight value.
2. A method for detecting the weight of a washing machine, which is the up-opening washing machine of claim 1, comprising the steps of:
s1: turning on a power supply, and detecting the weight of the current washing machine;
s2: zero adjustment correction is carried out on the weight value;
s3: when the door of the washing machine is detected to be closed and the washing program is detected to be started, reading the weight value of the washing machine detected by the gravity sensor as a clothes weight value;
s4: the washing machine performs a water inlet operation;
s5: the controller reads the water inlet weight value detected by the gravity sensor in real time, judges whether the water inlet weight value is larger than a first water inlet threshold value or not, stops water inlet if the water inlet weight value is larger than the first water inlet threshold value, and then executes S6, continues water inlet if the water inlet weight value is not larger than the first water inlet threshold value, and continues to execute S5;
s6: recording the current water inlet weight value as the washing water weight value;
s7: the washing machine performs a washing operation;
s8: the washing machine judges whether to execute natural drainage operation or spin-drying drainage operation, if the natural drainage operation is executed, the step S9 is executed, if the spin-drying drainage operation is executed, the spin-drying operation is executed, the water inlet operation is executed again, and the step S10 is executed;
s9: judging whether the weight of the discharged water reaches a required threshold value, if so, stopping water discharging, feeding water again, and then executing S10, otherwise, continuing water discharging and judging whether the weight of the discharged water reaches the required threshold value;
s10: judging whether the water inlet weight exceeds a second water inlet threshold value, if so, executing rinsing operation, and if not, continuing water inlet;
s11: judging whether rinsing is finished, if so, performing spin-drying operation, then performing S12, and if not, returning to S8;
s12: judging whether the washing machine door is opened after a preset time, if so, executing S13, and if not, giving an alarm that the clothes are not taken out;
s13: judging whether the weight of the washing machine exceeds the weight threshold of the empty-barrel washing machine in real time, if so, executing S14, and if not, executing S15;
s14: judging whether the washing machine door is closed, if so, giving an alarm that the clothes are not taken out, then returning to the step S12, and if not, executing the step S16;
s15: judging whether the washing machine door is closed, if so, ending, otherwise, giving an alarm of not closing the door, and then continuing to execute S15;
s16: and judging whether the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine, unlocking the door lock if the weight of the washing machine exceeds the weight threshold of the empty-tub washing machine, returning to the step S14, and ending if the weight of the washing machine does not exceed the weight threshold of the empty-tub washing machine.
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| CN201810604321.0A CN110592890B (en) | 2018-06-12 | 2018-06-12 | Weight detection method for washing machine |
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| CN201810604321.0A CN110592890B (en) | 2018-06-12 | 2018-06-12 | Weight detection method for washing machine |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110219551A1 (en) * | 2010-03-12 | 2011-09-15 | Im Myonghun | Washing machine and method for controlling washing machine |
| CN105696254A (en) * | 2015-01-04 | 2016-06-22 | 海信（山东）冰箱有限公司 | A washing machine control method and a washing machine |
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- 2018-06-12 CN CN201810604321.0A patent/CN110592890B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110219551A1 (en) * | 2010-03-12 | 2011-09-15 | Im Myonghun | Washing machine and method for controlling washing machine |
| CN105696254A (en) * | 2015-01-04 | 2016-06-22 | 海信（山东）冰箱有限公司 | A washing machine control method and a washing machine |
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