Washing equipment residual additive detection method and washing equipment

Abstract

The invention discloses a method for detecting residual additives of washing equipment, which is applied before executing a last dehydration procedure and comprises the following steps: acquiring the refractive index of the surface of a washing object in an inner drum of the washing equipment; calculating a difference value between the refractive index and a preset threshold value; and judging that the difference value exceeds a preset range, and controlling the washing equipment to execute a corresponding auxiliary program for removing the additive according to the grade of the difference value. Before the washing equipment executes the last dehydration procedure, whether the washings are rinsed cleanly or not is judged by detecting the refractive index of the surfaces of the washings in the inner barrel of the washing equipment, and the problem of additive residues after the rinsing procedure of the washing equipment is finished is solved. The invention further discloses the washing equipment adopting the detection method for the residual additive of the washing equipment.

Description

Technical Field

[0001] The invention belongs to the field of washing equipment, and in particular, relates to a method for detecting residual additives in washing equipment and the washing equipment. Background Art

[0002] Washing machines are increasingly widely used in people's lives, and a general washing machine has a preset washing program, which controls the washing machine to wash, rinse, dehydrate and other processes of clothes according to the washing program, thereby completing the washing of clothes. It is very convenient to complete the entire washing process of clothes without people manually switching the program.

[0003] However, in the use of existing washing machines, there are problems such as insufficient rinsing of clothes and detergent residue on clothes due to unreasonable setting of rinsing parameters, which in turn affects the user experience.

[0004] A Chinese patent application numbered 202010251386.9 discloses a rinsing control method for a washing machine, which calculates the current rinsing rate after the current rinsing program ends based on the remaining amount of detergent and the remaining amount of washing water at the end of the drainage operation immediately before the current rinsing program, the amount of water entering the washing machine at the beginning of the current rinsing program, and the amount of washing water discharged after the current rinsing program ends; then the current rinsing rate is compared with a preset rinsing rate threshold, and the number of rinses is selectively increased based on the comparison result between the current rinsing rate and the preset rinsing rate threshold. The above rinsing method determines whether it is necessary to increase the number of rinses by calculating the rinsing rate after the rinsing program is executed. However, the present invention has the problem of water waste, and if the rinsing rate reaches the set threshold, but still cannot achieve sufficient rinsing, there will be a problem of incomplete rinsing.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a method for detecting residual additives in a washing device and a washing device. Before the washing device performs the last dehydration program, the refractive index of the surface of the laundry in the washing device is detected to accurately determine whether the laundry is rinsed clean, thereby solving the problem of residual additives after the rinsing program of the washing device is completed.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A first aspect of the present invention provides a method for detecting residual additives in a washing machine, which is applied before executing the last dehydration process, comprising:

[0009] S100, obtaining the refractive index of the surface of the laundry in the inner drum of the washing device;

[0010] S200, calculating the difference between the refractive index and a preset threshold value;

[0011] S300, determining that the difference exceeds a preset range, and controlling the washing equipment to execute a corresponding auxiliary procedure for removing additives according to the level of the difference.

[0012] Optionally, before obtaining the refractive index of the surface of the laundry in the inner drum of the washing device, the method includes:

[0013] S10, controlling the inner drum of the washing device to rotate at a set speed.

[0014] Optionally, after obtaining the refractive index of the surface of the laundry in the inner drum of the washing device, calculating the difference between the refractive index and a preset threshold value includes:

[0015] S201, comparing the sizes of the obtained refractive indices;

[0016] S202, obtaining the maximum refractive index, and controlling the inner drum of the washing device to stop rotating;

[0017] S203: Calculate the difference between the maximum refractive index and a preset threshold.

[0018] Optionally, the washing equipment is controlled to execute a corresponding auxiliary program for removing additives according to the level of the difference, specifically including: if the difference is at the first level, the rinsing program is executed again; if the difference is at the second level, the spraying program is executed during the drainage process of the rinsing program; if the difference is at the third level, the spraying program is executed during the last dehydration process; wherein the values ​​of the first level, the second level, and the third level decrease successively.

[0019] Optionally, in S300, if the difference is determined to be within a preset range, S400 is executed.

[0020] Optionally, after the washing equipment completes the spraying process, it includes:

[0021] S400, controlling the inner drum of the washing device to rotate a set number of circles or angle or time.

[0022] Preferably, the inner drum of the washing device is controlled to rotate at least 5 times.

[0023] Optionally, the method for detecting residual additives in washing equipment further includes:

[0024] S500, repeat steps S10 to S400 at least three times;

[0025] S600, controlling the washing equipment to execute a dehydration program.

[0026] A second aspect of the present invention provides a washing device, wherein the washing device adopts the above-mentioned method for detecting residual additives in the washing device.

[0027] Furthermore, the washing device is provided with a detection device, which is arranged on the water-dispelling blade of the inner drum and is used to detect the refractive index of the surface of the laundry in the inner drum of the washing device.

[0028] Advantageously, the detection device is arranged on the water-dispelling blade of the inner drum of the washing device, so that the surface of the laundry in the inner drum can be detected regardless of the state of the inner drum of the washing device.

[0029] Furthermore, the washing device is also provided with a control unit, and the control unit controls the rotation of the inner drum of the washing device or controls the washing device to execute a corresponding auxiliary program for removing detergent according to the detection result of the detection device.

[0030] Furthermore, the control unit is communicatively connected to the detection device.

[0031] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0032] 1. The control method of the present invention can detect the residual additives in the inner drum before the washing device performs the last dehydration program, so as to ensure that the laundry is cleaned more thoroughly and improve the user experience.

[0033] 2. The difference between the refractive index and the set threshold value of the present invention is used to select the corresponding auxiliary program for removing detergent in different grades, which can ensure that the detergent is finally removed completely and save water.

[0034] 3. The detection device provided in the present invention is arranged on the water-repelling blade of the inner drum, which can ensure that the refractive index of the laundry in the inner drum can be detected regardless of the state of the inner drum of the washing equipment.

[0035] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0037] Figure 1 This is a schematic diagram of the control process of precise delivery of additives to the washing equipment of the present invention Figure 1 ;

[0038] Figure 2 This is a schematic diagram of the control process of precise delivery of additives to the washing equipment of the present invention. Figure 2 ;

[0039] Figure 3 This is a schematic diagram of the control process of precise delivery of additives to the washing equipment of the present invention. Figure 3 .

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figures 1 to 3 As shown, the first aspect of the present invention provides a method for detecting residual additives in a washing device, which is applied before executing the last dehydration program and when a certain time is left in the last rinsing, to detect additives on the surface of the laundry in the inner drum of the washing device, and to control the washing device to execute a corresponding auxiliary program for removing additives according to the detection result, so as to achieve the purpose of reducing residual additives. Specifically, it includes steps S10 to S600.

[0045] In step S100, the refractive index of the surface of the laundry in the inner drum of the washing device is obtained.

[0046] In step S200, the difference between the refractive index and a preset threshold is calculated.

[0047] In step S300, it is determined that the difference exceeds a preset range, and the washing device is controlled to execute an auxiliary program corresponding to the additive according to the level of the difference.

[0048] Optionally, before step S100, step S10 is included.

[0049] In step S10, the inner drum of the washing device is controlled to rotate at a set speed.

[0050] Specifically, the washing machine completes the last rinse and enters the last spin cycle. Before executing the last spin cycle, the washing machine inner drum is controlled to rotate at a set speed, and the refractive index of the surface of the laundry in the inner drum of the washing machine is obtained during the rotation. The difference between the refractive index and a preset threshold is calculated, and it is determined that the difference exceeds a preset range. According to the degree to which the difference exceeds the preset range, the washing machine is controlled to execute a corresponding auxiliary program for removing additives to remove the additives contained in the laundry.

[0051] Optionally, in step S200, steps S201 to S203 are executed.

[0052] In step S201, the sizes of the acquired refractive indices are compared.

[0053] In step S202, the maximum refractive index is obtained, and the inner drum of the washing equipment is controlled to stop rotating.

[0054] In step S203, the difference between the maximum refractive index and a preset threshold is calculated.

[0055] Specifically, the refractive indices obtained during the rotation of the inner drum of the washing device are compared, and the maximum refractive index is obtained therefrom. The inner drum of the washing device is then controlled to stop rotating, and the surface of the laundry with the maximum refractive index is made to face upward. The difference between the maximum refractive index and a preset threshold is then calculated. It is then determined whether the calculated difference exceeds a preset range. The washing device is controlled to execute a corresponding auxiliary program for removing additives according to the degree to which the difference exceeds the preset range.

[0056] Optionally, in step S300, if the difference is at the first level, the rinsing program is executed again; if the difference is at the second level, the spraying program is executed during the drainage process of the rinsing program; if the difference is at the third level, the spraying program is executed during the last dehydration process; wherein the values ​​of the first level, the second level, and the third level decrease successively.

[0057] Specifically, in step S300, the obtained refractive index is first compared with the preset threshold value, and the difference is obtained, and then the level of the difference is determined. If the difference is in the first level, it means that the content of additives in the laundry is high, and the rinsing procedure is performed again to reduce the content of detergent; if the difference is in the second level, it means that the content of detergent in the laundry is medium, and in the drainage process of the last rinse, the spraying procedure is performed to spray a certain amount of water into the inner drum of the washing device to reduce the content of detergent; if the difference is in the third level, it means that the content of detergent in the laundry is low, and the spraying procedure is performed in the process of the last dehydration to spray a certain amount of water into the inner drum of the washing device to reduce the content of detergent.

[0058] Optionally, in step S300, if the difference is determined to be within a preset range, S400 is executed.

[0059] Optionally, after step S300, execute step S400.

[0060] In step S400, the inner drum of the washing device is controlled to rotate a set number of circles, angle or time.

[0061] Preferably, the inner drum of the washing device is controlled to rotate at least 5 times.

[0062] Optionally, the control method for precise delivery of additives to washing equipment also includes steps S500 to S600.

[0063] In step S500, steps S80 to S400 are repeated at least three times.

[0064] In step S600, the washing device is controlled to perform a dehydration process.

[0065] Specifically, before executing the last dehydration program, when there is a certain amount of time left after the last rinse, the refractive index of the surface of the laundry in the inner drum of the washing device is detected, and the difference with a preset threshold is calculated. By judging whether the difference exceeds the preset range, the washing device is controlled to execute the corresponding auxiliary program for removing additives or the dehydration program, so as to achieve the purpose of reducing the amount of detergent residue.

[0066] In the first embodiment of the present invention, step S10 is first executed to control the inner drum of the washing device to rotate at a set speed, and the refractive index of the surface of the laundry in the inner drum of the washing device is detected during the rotation. Specifically, steps S100 to S300 are executed to detect the refractive index of the surface of the laundry in the inner drum of the washing device, compare the obtained refractive indices, obtain the maximum refractive index, control the inner drum of the washing device to stop rotating, and then calculate the difference between the maximum refractive index and a preset threshold value. If the difference between the refractive index and the preset threshold value exceeds a preset range, it indicates that the refractive index of the surface of the laundry in the inner drum of the washing device fluctuates greatly, further indicating that the additive on the surface of the laundry in the inner drum of the washing device is The high adhesion rate also indicates that there is a large amount of additive residue in the inner drum of the washing device; then determine which level the difference is in. If the difference is in the first level, it means that the laundry contains a large amount of additives, so a rinsing program is performed again to reduce the detergent content; if the difference is in the second level, it means that the detergent content in the laundry is medium, so during the drainage process of the last rinsing, a spraying program is performed to spray a certain amount of water into the inner drum of the washing device to reduce the detergent content; if the difference is in the third level, it means that the detergent content in the laundry is low, so a spraying program is performed during the last dehydration process to spray a certain amount of water into the inner drum of the washing device to reduce the detergent content. After completing the corresponding steps, execute step S400 to control the inner drum of the washing device to rotate. The inner drum can rotate a set number of times or a set angle or a set time. Preferably, the inner drum of the washing device is controlled to rotate a set number of times and at least 5 times, and then repeat steps S10 to S400 at least three times until the difference between the maximum refractive index of the detergent on the surface of the laundry in the inner drum of the washing device and the set preset threshold value is within a preset range, and the washing device is controlled to perform the last dehydration program.

[0067] In the second embodiment of the present invention, step S10 is first executed to control the inner drum of the washing device to rotate at a set speed, and the refractive index of the surface of the laundry in the inner drum of the washing device is detected during the rotation. Specifically, steps S100 to S400 are executed to detect the refractive index of the surface of the laundry in the inner drum of the washing device, compare the obtained refractive indices, obtain the maximum refractive index therefrom, and control the inner drum of the washing device to stop rotating, and then calculate the difference between the maximum refractive index and the set preset threshold value. If the difference between the refractive index and the set preset threshold value is within a preset range, step S400 is executed to control the inner drum of the washing device to rotate. The inner drum can be rotated in a set number of turns or a set angle or a set time. Preferably, the inner drum of the washing device is controlled to rotate in a set number of turns and at least 5 turns, and then steps S10 to S400 are repeated at least three times to control the washing device to perform a dehydration program.

[0068] A second aspect of the present invention provides a washing device, wherein the washing device adopts the above-mentioned method for detecting residual additives in the washing device.

[0069] Furthermore, the washing device is provided with a detection device, which is arranged on the water-dispelling blade of the inner drum and is used to detect the refractive index of the surface of the laundry in the inner drum of the washing device.

[0070] Specifically, the detection device of the washing equipment is arranged on the water-spraying blade of the washing equipment to ensure that after the washing equipment completes the last rinse and enters the last dehydration program, and before executing the last dehydration program, no matter what state the inner drum of the washing equipment is in, the refractive index of the surface of the laundry in the inner drum of the washing equipment can be detected to obtain the detection result.

[0071] It should be noted that, in the present invention, the detection result obtained is the refractive index of the surface of the laundry detected by the detection device when the inner drum of the washing device is rotating at a set speed.

[0072] Furthermore, the washing device is also provided with a control unit, and the control unit controls the rotation of the inner drum of the washing device or controls the washing device to execute a corresponding auxiliary program for removing detergent according to the detection result of the detection device.

[0073] Furthermore, the control unit is communicatively connected with the detection device.

[0074] In an embodiment of the present invention, if the detection device detects the refractive index of the surface of the laundry in the inner drum of the washing device, compares the acquired refractive indices, obtains the maximum refractive index therefrom, and controls the inner drum of the washing device to stop rotating, then compares the acquired maximum refractive index of the surface of the laundry in the inner drum of the washing device with a preset threshold value, if the difference between the refractive index and the preset threshold value exceeds a preset range, the control unit controls the washing device to execute a corresponding auxiliary program for removing additives, and after the program is executed, the control unit controls the inner drum of the washing device to rotate.

[0075] In another embodiment of the present invention, if the detection device detects the refractive index of the surface of the laundry in the inner drum of the washing device, compares the acquired refractive indices, obtains the maximum refractive index therefrom, and controls the inner drum of the washing device to stop rotating, then compares the acquired maximum refractive index of the surface of the laundry in the inner drum of the washing device with a preset threshold value, if the difference between the refractive index and the preset threshold value is within a preset range, the control unit controls the inner drum of the washing device to rotate.

[0076] In all embodiments of the present invention, the following steps are repeated: the detection device performs detection, and the control unit controls the washing device to execute the auxiliary program corresponding to the removal of additives or the control unit controls the inner drum of the washing device to rotate at least three times, and the control unit controls the washing device to execute the last dehydration program.

[0077] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details, for example, determining the attachment of additives by refractive index, etc. In some embodiments, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0078] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim.

[0079] Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment.The claims following the Detailed Description are thus hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

[0080] All features disclosed in this specification (including accompanying claims, abstracts and drawings) and all processes or units of any device disclosed in this specification (including accompanying claims, abstracts and drawings) may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless otherwise explicitly stated, each feature disclosed in this specification (including accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0081] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination.

[0082] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0083] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A method for detecting residual additives in a washing machine, applied before executing the last dehydration process, characterized in that: include: S100, obtaining the refractive index of the surface of the laundry in the inner drum of the washing device; S200, calculating the difference between the refractive index and a preset threshold value; S300, determining that the difference exceeds a preset range, and controlling the washing equipment to execute a corresponding auxiliary procedure for removing additives according to the level of the difference.

2. The method for detecting residual additives in washing equipment according to claim 1, characterized in that: Before S100; including: S10, controlling the inner drum of the washing device to rotate at a set speed.

3. The method for detecting residual additives in washing equipment according to claim 1, characterized in that: In S200, it includes: S201, comparing the sizes of the obtained refractive indices; S202, obtaining the maximum refractive index, and controlling the inner drum of the washing device to stop rotating; S203: Calculate the difference between the maximum refractive index and a preset threshold.

4. The method for detecting residual additives in washing equipment according to claim 1, characterized in that: In S300, if the difference is at the first level, the rinsing process is performed again; if the difference is at the second level, the spraying process is performed during the drainage process of the rinsing process; if the difference is at the third level, the spraying process is performed during the last dehydration process; Among them, the values ​​of the first level, the second level, and the third level decrease in sequence.

5. The method for detecting residual additives in washing equipment according to claim 4, characterized in that: In S300 , if it is determined that the difference is within a preset range, S400 is executed.

6. The method for detecting residual additives in washing equipment according to claim 5, characterized in that: After S300, including: S400, controlling the inner drum of the washing device to rotate a set number of circles, angle or time; Preferably, the inner drum of the washing device is controlled to rotate at least 5 times.

7. The method for detecting residual additives in washing equipment according to any one of claims 1 to 6, characterized in that: Also includes: S500, repeat steps S10 to S400 at least three times; S600, controlling the washing equipment to execute a dehydration program.

8. A washing device, characterized in that: A method for detecting residual additives in washing equipment as described in any one of claims 1 to 7; The washing device is provided with a detection device, which is arranged on the water-displacing blade of the inner drum and is used to detect the refractive index of the surface of the laundry in the inner drum of the washing device.

9. The washing device according to claim 8, characterized in that: The washing device is also provided with a control unit, and the control unit controls the inner drum of the washing device to rotate or controls the washing device to execute a corresponding auxiliary program for removing detergent according to the detection result of the detection device.

10. The washing device according to claim 9, characterized in that: The control unit is in communication connection with the detection device.

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