Method for determining fault condition of damper, control method of clothing processing device and clothing processing device

Abstract

The present invention provides a method for determining a fault condition of a damper, a control method for a clothing processing device and a clothing processing device, and belongs to the technical field of clothing processing devices; the determination method comprises: when the clothing processing device is running, obtaining the deformation of the damper and the eccentricity of an inner drum in real time; judging whether the deformation of the damper satisfies a first preset condition; when the deformation of the damper satisfies the first preset condition, determining that the structure of the damper is damaged; and / or, determining the fault condition of the damper according to the weight of the clothing in the inner drum, the deformation of the damper and the eccentricity of the inner drum; the fault condition of the damper can be accurately determined, the aging of the damper can be effectively warned, and the damper can be replaced in time, and the influence of the structural damage and aging of the damper on the operation of the clothing processing device can be evaluated, so as to ensure the reliable operation of the clothing processing device, extend the service life of the clothing processing device, improve the user experience, and simplify the difficulty of tracing faults of the clothing processing device.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing processing equipment, and in particular, relates to a method for determining a fault condition of a damper, a control method for clothing processing equipment, and clothing processing equipment. Background Art

[0002] In the existing clothing processing equipment, there is no method to determine the failure condition of the damper, and the existing control method cannot correctly evaluate the impact of the damper failure or damper aging on the normal operation of the clothing processing equipment. The damper cannot be maintained in time and the process of maintaining the damper is cumbersome, resulting in unreliable operation and shortened life of the clothing processing equipment. Summary of the invention

[0003] In view of this, the present invention provides a method for determining a fault condition of a damper, a control method for a clothing processing device, and a clothing processing device, so as to solve the problem that the control method in the existing clothing processing device cannot correctly evaluate the fault condition of the damper, resulting in the failure to maintain the damper in time and the cumbersome process of maintaining the damper, thereby shortening the life of the clothing processing device.

[0004] The present invention provides a method for determining a fault condition of a damper, which is used for a clothes processing device; the clothes processing device comprises an outer drum, an inner drum and a damper, the inner drum is rotatably arranged in the outer drum, and the damper is used to reduce the vibration of the outer drum; the method for determining a fault condition comprises:

[0005] When the clothes processing device is running, the deformation amount of the damper and the eccentricity of the inner drum are obtained in real time;

[0006] Determining whether the deformation amount of the damper meets a first preset condition;

[0007] When the deformation amount of the damper satisfies the first preset condition, determining that the structure of the damper is damaged; and / or,

[0008] Determining a fault condition of the damper according to the deformation of the damper and the eccentricity of the inner cylinder;

[0009] Among them, the parameters related to the first preset condition include the cumulative time that the damper is in a first preset state and the number of times the first preset state occurs within an operating cycle of the clothing processing equipment, and the first preset state is that the deformation amount is greater than the preset maximum deformation amount.

[0010] Further optionally, determining the fault condition of the damper according to the deformation of the damper and the eccentricity of the inner cylinder includes:

[0011] judging whether the damper is in an abnormal state according to the magnitude relationship between the eccentricity and the correction value of the deformation amount;

[0012] When the damper is in an abnormal state, determining a fault condition of the damper according to the accumulated duration of the abnormal state of the damper;

[0013] The larger the weight interval to which the weight of the clothes inside the inner tube belongs, the smaller the correction value of the deformation amount.

[0014] Further optionally, judging whether the damper is in an abnormal state according to the magnitude relationship between the eccentricity and the correction value of the deformation comprises:

[0015] Comparing the weight of the clothes in the inner tube with a preset weight;

[0016] When the weight of the garment inside the inner tube is less than or equal to the preset weight, the eccentricity is compared with the first correction value of the deformation; if the eccentricity is less than the first correction value of the deformation, it is determined that the damper is in an abnormal state; otherwise, it is determined that the damper is not in an abnormal state;

[0017] When the weight of the clothes in the inner tube is greater than the preset weight, the eccentricity is compared with the second correction value of the deformation; if the eccentricity is less than the second correction value of the deformation, it is determined that the damper is in an abnormal state; otherwise, it is determined that the damper is not in an abnormal state;

[0018] Wherein, the first correction value is greater than the second correction value.

[0019] Further optionally, determining the fault condition of the damper according to the accumulated duration of the abnormal state of the damper includes:

[0020] When the eccentricity is less than the first correction value of the deformation, it is determined that the inner cylinder is in a second preset state; the accumulated time of the second preset state is compared with the second preset time; when the accumulated time of the second preset state is greater than the second preset time, it is determined that the damper is aged;

[0021] When the eccentricity is less than the second correction value of the deformation, it is determined that the inner cylinder is in a third preset state; the accumulated time of the third preset state is compared with the third preset time; when the accumulated time of the third preset state is greater than the third preset time, it is determined that the damper is aged;

[0022] Among them, the first correction value of the deformation amount is A*X, and the second preset state is that B is less than A*X; the second correction value of the deformation amount is A*[XM / (m*K)], and the third preset state is that B is less than A*[XM / (m*K)]; B is the eccentricity of the inner cylinder, A is the correction proportional coefficient, X is the deformation amount of the damper, M is the weight of the clothes in the inner cylinder, m is the number of the dampers, and K is the damping coefficient.

[0023] Further optionally, determining the fault condition of the damper according to the deformation of the damper and the eccentricity of the inner cylinder includes:

[0024] Comparing the weight of the clothes in the inner tube with a preset weight;

[0025] When the weight of the clothes in the inner tube is less than or equal to the preset weight, determining whether the eccentricity of the inner tube meets a second preset condition;

[0026] When the weight of the clothes in the inner tube is greater than the preset weight, determining whether the eccentricity of the inner tube meets a third preset condition;

[0027] determining a fault condition of the damper according to a judgment result of whether the eccentricity of the inner cylinder satisfies the second preset condition or the third preset condition;

[0028] Among them, the parameters related to the second preset condition include the cumulative time that the inner cylinder is in the second preset state, and the second preset state is that the eccentricity is less than the first correction value of the deformation amount; the parameters related to the third preset condition include the cumulative time that the inner cylinder is in the third preset state, and the third preset state is that the eccentricity is less than the second correction value of the deformation amount; the first correction value is greater than the second correction value.

[0029] Further optionally, the determining the fault condition of the damper according to the judgment result of whether the eccentricity of the inner cylinder satisfies the second preset condition or the third preset condition includes:

[0030] When the eccentricity of the inner cylinder does not satisfy the second preset condition or the third preset condition, determining that the damper is normal;

[0031] When the eccentricity of the inner cylinder meets the second preset condition or the third preset condition, it is determined that the damper is aged;

[0032] Further optionally, after determining that the damper is aged, the fault condition determination method further includes:

[0033] comparing the eccentricity of the inner cylinder with a preset maximum eccentricity;

[0034] The aging degree of the damper is determined according to a comparison result between the eccentricity of the inner cylinder and a preset maximum eccentricity.

[0035] Further optionally, determining the aging degree of the damper according to a comparison result between the eccentricity of the inner cylinder and a preset maximum eccentricity includes:

[0036] When the eccentricity of the inner cylinder is less than the preset maximum eccentricity, it is determined that the damper is slightly aged;

[0037] When the eccentricity of the inner cylinder is greater than or equal to the preset maximum eccentricity, it is determined that the damper is seriously aged.

[0038] Further optionally, the determining whether the deformation amount of the damper satisfies a first preset condition includes:

[0039] During an operation cycle of the clothes processing device, determining whether the damper is in the first preset state;

[0040] When the damper appears in the first preset state, determining whether the accumulated time length of the damper being in the first preset state is greater than the first preset time length, and determining whether the number of times the damper appears in the first preset state is greater than or equal to a preset number;

[0041] When the accumulated time length of the damper being in the first preset state is greater than the first preset time length and the number of times the damper appears in the first preset state is greater than or equal to a preset number of times, it indicates that the deformation amount of the damper meets the first preset condition;

[0042] When the damper does not appear in the first preset state, or the damper appears in the first preset state but the cumulative time that the damper is in the first preset state is less than or equal to the first preset time, or the damper appears in the first preset state and the cumulative time that the damper is in the first preset state is greater than the first preset time but the number of times the damper appears in the first preset state is less than the preset number, it means that the deformation of the damper does not meet the first preset condition.

[0043] Further optionally, the determining whether the eccentricity of the inner cylinder satisfies a second preset condition includes:

[0044] Determining whether the inner cylinder is in the second preset state;

[0045] When the inner cylinder is in the second preset state, determining whether the accumulated time length of the inner cylinder being in the second preset state is greater than the second preset time length;

[0046] When the accumulated time length of the inner cylinder being in the second preset state is greater than the second preset time length, it indicates that the eccentricity of the inner cylinder meets the second preset condition;

[0047] When the inner cylinder does not appear in the second preset state, or when the inner cylinder appears in the second preset state but the accumulated time for which the inner cylinder is in the second preset state is less than or equal to the second preset time, it indicates that the eccentricity of the inner cylinder does not meet the second preset condition;

[0048] Among them, the first correction value of the deformation amount is A*X, and the second preset state is that B is less than A*X; B is the eccentricity of the inner cylinder, A is the correction proportional coefficient, and X is the deformation amount of the damper.

[0049] Further optionally, the determining whether the eccentricity of the inner cylinder satisfies a third preset condition includes:

[0050] Determining whether the inner cylinder is in the third preset state;

[0051] When the inner cylinder is in the third preset state, determining whether the accumulated time length of the inner cylinder in the third preset state is greater than the third preset time length;

[0052] When the accumulated time length of the inner cylinder being in the third preset state is greater than the third preset time length, it indicates that the eccentricity of the inner cylinder meets the third preset condition;

[0053] When the inner cylinder does not appear in the third preset state, or when the inner cylinder appears in the third preset state but the accumulated time for which the inner cylinder is in the third preset state is less than or equal to the third preset time, it indicates that the eccentricity of the inner cylinder does not meet the third preset condition;

[0054] The second correction value of the deformation amount is A*[XM / (m*K)], and the third preset state is that B is less than A*[XM / (m*K)]; B is the eccentricity of the inner cylinder, A is the correction proportional coefficient, X is the deformation amount of the damper, M is the weight of the clothes in the inner cylinder, m is the number of the dampers, and K is the damping coefficient.

[0055] Further optionally, when the deformation amount of the damper does not satisfy the first preset condition, the fault condition of the damper is determined according to the deformation amount of the damper and the eccentricity of the inner cylinder.

[0056] The present invention also provides a control method for a clothes processing device, the control method comprising a clothes processing method and a method for determining a fault condition of a damper as described in any one of the above;

[0057] The laundry processing device starts a fault condition determination method of the damper before running the laundry processing method;

[0058] The laundry processing device stops the method for determining a fault condition of the damper after the laundry processing method is finished or after determining that the damper structure is damaged or aged seriously.

[0059] Further optionally, the control method includes:

[0060] Before the laundry processing device runs the laundry processing method, the initial operation cycle Z of the laundry processing device is obtained. 0 ;

[0061] During the operation of the laundry processing device, when it is determined that the damper is normal, after the operation of the laundry processing device is completed, the current operation cycle is calculated as Z=Z 0 +1;

[0062] When it is determined that the damper is slightly aged, the clothes processing device is controlled to keep running, and the current running cycle is calculated as Z=Z 0 +1, and record the damper and the current operating cycle Z=Z 0 +1, controlling the clothing processing device to send out a fault warning signal;

[0063] When it is determined that the damper is seriously aged, the clothes processing device is controlled to stop running or the inner drum is rotated at a preset speed, and the current operation cycle is calculated as Z=Z 0 +1, and record the damper and the current operating cycle Z=Z 0 +1, controlling the clothing processing device to send out a fault warning signal;

[0064] Wherein, the preset rotation speed is lower than the preset maximum rotation speed.

[0065] The present invention also provides a clothes processing device, comprising a box, an outer drum and an inner drum, wherein the outer drum is arranged inside the box and a damper is connected between the outer drum and the box; the inner drum is rotatably arranged inside the outer drum;

[0066] The laundry processing device adopts any one of the above-mentioned methods for determining a fault condition of a damper to determine a fault condition of the damper; and / or the laundry processing device adopts any one of the above-mentioned methods for controlling a laundry processing device.

[0067] Further optionally, the clothing processing device further comprises a damper fault warning device, the damper fault warning device comprises a detection module, a warning control module and a warning communication module, the detection module comprises a displacement sensor, a pressure sensor and a vibration sensor, the displacement sensor is used to detect the deformation amount of the damper, the pressure sensor is used to detect the weight of the clothing in the inner drum, and the vibration sensor is used to detect the eccentricity of the inner drum;

[0068] The early warning communication module is used to communicate with the detection module and the early warning control module, and the early warning control module is used to control the operation of the clothing processing equipment according to the data transmitted by the detection module, and the early warning control module includes an early warning memory, which is used to store the model of the damper, the deformation of the damper, the weight of the clothes in the inner drum, the eccentricity of the inner drum, and the correspondence between the damper in a faulty state and the operating cycle.

[0069] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0070] The fault condition of the damper can be accurately determined, and structural damage and aging of the damper can be effectively warned, thus simplifying the process of maintaining the damper, and the damper can be replaced in time. The influence of structural damage and aging of the damper on the operation of the clothing processing equipment can be evaluated, thus ensuring the reliable operation of the clothing processing equipment, extending the life of the clothing processing equipment, improving the user experience, simplifying the difficulty of tracing faults of the clothing processing equipment, and solving the problem that the control method in the existing clothing processing equipment cannot correctly evaluate the fault condition of the damper, resulting in the failure to timely maintain the damper and the cumbersome process of maintaining the damper, thereby shortening the life of the clothing processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0072] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0073] Figure 1A schematic flow chart of a method for determining a fault condition of a damper provided by the present invention in Embodiment 1;

[0074] Figure 2 A schematic flow chart of Embodiment 6 of a method for determining a fault condition of a damper provided by the present invention;

[0075] Figure 3 This is a schematic structural diagram of an embodiment of a damper fault warning device provided by the present invention. DETAILED DESCRIPTION

[0076] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0077] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0078] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0079] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0080] In the existing clothes processing equipment, there is no method for determining the fault condition of the damper, and the existing control method cannot correctly evaluate the fault condition of the damper or the impact of structural damage and aging of the damper on the normal operation of the clothes processing equipment. The damper cannot be maintained in time and the maintenance process of the damper is cumbersome, resulting in unreliable operation and shortened life of the clothes processing equipment;

[0081] The present invention creatively provides a method for determining a fault condition of a damper, wherein the damper is used to slow down the vibration of an outer drum; the determination method comprises: when a clothing processing device is running, obtaining a deformation amount of the damper and an eccentricity amount of an inner drum in real time; judging whether the deformation amount of the damper meets a first preset condition; when the deformation amount of the damper meets the first preset condition, determining that the structure of the damper is damaged; when the deformation amount of the damper does not meet the first preset condition, determining a fault condition of the damper according to the weight of the clothing in the inner drum, the deformation amount of the damper and the eccentricity amount of the inner drum;

[0082] The fault condition of the damper can be accurately determined, and the damper can be replaced in time, thereby ensuring the reliable operation of the clothing processing equipment and extending the life of the clothing processing equipment.

[0083] Example 1

[0084] like Figure 1 As shown, this embodiment provides a method for determining a fault condition of a damper, which is used in a clothes processing device; the clothes processing device includes a box, an outer drum and an inner drum, the outer drum is arranged inside the box, and a damper is connected between the outer drum and the box, and the damper is used to reduce the vibration of the outer drum; the inner drum is rotatably arranged in the outer drum; the fault condition of the damper can be evaluated by the degree of structural damage and aging of the damper; the determination method includes:

[0085] S1. When the clothes processing device is running, the deformation of the damper and the eccentricity of the inner drum are obtained in real time;

[0086] S2, determining whether the deformation of the damper meets the first preset condition;

[0087] S3. When the deformation amount of the damper satisfies the first preset condition, determining that the structure of the damper is damaged; specifically, determining that the structure of the damper is severely damaged; and / or,

[0088] When the deformation of the damper does not meet the first preset condition, determining the fault condition of the damper according to the deformation of the damper and the eccentricity of the inner cylinder;

[0089] Among them, the parameters related to the first preset condition include the cumulative time that the damper is in the first preset state and the number of times the first preset state occurs within an operating cycle of the clothing processing equipment, the first preset state being that the deformation amount is greater than the preset maximum deformation amount; the weight of the clothes in the inner drum is obtained before the clothing processing equipment runs the washing program or the drying program.

[0090] To sum up, by adopting the determination method of this embodiment, the fault condition of the damper can be accurately determined, the process of maintaining the damper is simplified, and the damper can be replaced in time, thereby ensuring the reliable operation of the clothing processing equipment, extending the life of the clothing processing equipment, improving the user experience, simplifying the difficulty of tracing the fault of the clothing processing equipment, and solving the problem that the control method in the existing clothing processing equipment cannot correctly evaluate the fault condition of the damper, resulting in the inability to maintain the damper in time and the cumbersome process of maintaining the damper, thereby shortening the life of the clothing processing equipment.

[0091] Example 2

[0092] On the basis of Example 1, this embodiment proposes that S3 is when the deformation of the damper does not meet the first preset condition, the fault condition of the damper is determined according to the deformation of the damper and the eccentricity of the inner tube, and the fault condition of the damper is determined according to the deformation of the damper and the eccentricity of the inner tube, including:

[0093] According to the magnitude relationship between the eccentricity and the correction value of the deformation, it is judged whether the damper is in an abnormal state;

[0094] When the damper is in an abnormal state, the fault condition of the damper is determined according to the accumulated time duration of the damper in the abnormal state;

[0095] The larger the weight interval to which the weight of the clothes in the inner tube belongs, the smaller the correction value of the deformation amount.

[0096] Further, judging whether the damper is in an abnormal state according to the magnitude relationship between the eccentricity and the correction value of the deformation includes:

[0097] Compare the weight of the clothes in the inner tube with the preset weight;

[0098] When the weight of the clothes in the inner tube is less than or equal to the preset weight, the eccentricity and the first correction value of the deformation are compared; if the eccentricity is less than the first correction value of the deformation, it is determined that the damper is in an abnormal state; otherwise, it is determined that the damper is not in an abnormal state;

[0099] When the weight of the clothes in the inner tube is greater than the preset weight, the eccentricity and the second correction value of the deformation are compared; if the eccentricity is less than the second correction value of the deformation, it is determined that the damper is in an abnormal state; otherwise, it is determined that the damper is not in an abnormal state;

[0100] Wherein, the first correction value is greater than the second correction value.

[0101] According to the accumulated time of the abnormal state of the damper, the fault conditions of the damper are determined to include:

[0102] When the eccentricity is less than the first correction value of the deformation, it is determined that the inner cylinder is in the second preset state; the accumulated time of the second preset state is compared with the second preset time; when the accumulated time of the second preset state is greater than the second preset time, it is determined that the damper is aged;

[0103] When the eccentricity is less than the second correction value of the deformation, it is determined that the inner cylinder is in the third preset state; the accumulated time of the third preset state is compared with the third preset time; when the accumulated time of the third preset state is greater than the third preset time, it is determined that the damper is aged;

[0104] Among them, the first correction value of the deformation amount is A*X, and the second preset state is that B is less than A*X; the second correction value of the deformation amount is A*[XM / (m*K)], and the third preset state is that B is less than A*[XM / (m*K)]; B is the eccentricity of the inner tube, A is the correction proportional coefficient, X is the deformation amount of the damper, M is the weight of the clothes in the inner tube, m is the number of dampers, and K is the damping coefficient.

[0105] Example 3

[0106] Based on Example 1, this example proposes that S2 includes:

[0107] S21, determining whether the damper is in a first preset state within an operation cycle of the clothing processing device;

[0108] S22, when the damper appears in the first preset state, determining whether the accumulated time length of the damper in the first preset state is greater than the first preset time length, and determining whether the number of times the damper appears in the first preset state is greater than or equal to a preset number;

[0109] S23, when the cumulative time length of the damper being in the first preset state is greater than the first preset time length and the number of times the damper appears in the first preset state is greater than or equal to the preset number of times, it indicates that the deformation of the damper satisfies the first preset condition; if the deformation of the damper satisfies the first preset condition, it indicates that the structure of the damper is seriously damaged, which will affect the normal operation of the clothing processing device;

[0110] S24, when the damper does not appear in the first preset state, or the damper appears in the first preset state but the cumulative time length of the damper in the first preset state is less than or equal to the first preset time length, or the damper appears in the first preset state and the cumulative time length of the damper in the first preset state is greater than the first preset time length but the number of times the damper appears in the first preset state is less than the preset number of times, it indicates that the deformation amount of the damper does not meet the first preset condition;

[0111] Specifically, the accumulated time duration that the damper is in the first preset state may be a single continuous time duration that the damper is in the first preset state, or may be a plurality of accumulated time durations that the damper is in the first preset state.

[0112] This embodiment further proposes that S3 is when the deformation of the damper does not meet the first preset condition, the fault condition of the damper is determined according to the deformation of the damper and the eccentricity of the inner cylinder, and the fault condition of the damper is determined according to the deformation of the damper and the eccentricity of the inner cylinder, including:

[0113] S31, comparing the weight of the clothes in the inner tube with a preset weight;

[0114] S32, when the weight of the clothes in the inner drum is less than or equal to the preset weight, determining whether the eccentricity of the inner drum meets a second preset condition;

[0115] S33, when the weight of the clothes in the inner drum is greater than the preset weight, determining whether the eccentricity of the inner drum meets a third preset condition;

[0116] S34, determining the fault condition of the damper according to the judgment result of whether the eccentricity of the inner cylinder satisfies the second preset condition or the third preset condition;

[0117] Among them, the eccentricity reflects the balance state of the inner cylinder and is in a certain proportional relationship with the deformation amount of the damper; the parameters related to the second preset condition include the cumulative time that the inner cylinder is in the second preset state, and the second preset state is that the eccentricity is less than the first correction value of the deformation amount; the parameters related to the third preset condition include the cumulative time that the inner cylinder is in the third preset state, and the third preset state is that the eccentricity is less than the second correction value of the deformation amount; the first correction value is greater than the second correction value.

[0118] Specifically, S32 includes:

[0119] S321, determining whether the inner drum is in a second preset state;

[0120] S322, when the inner drum is in the second preset state, determining whether the accumulated time length of the inner drum in the second preset state is greater than the second preset time length;

[0121] S323: When the accumulated time that the inner drum is in the second preset state is greater than the second preset time, it indicates that the eccentricity of the inner drum meets the second preset condition;

[0122] S324: When the inner drum does not appear in the second preset state, or the inner drum appears in the second preset state but the accumulated time for which the inner drum is in the second preset state is less than or equal to the second preset time, it indicates that the eccentricity of the inner drum does not meet the second preset condition;

[0123] Among them, the first correction value of the deformation is A*X, and the second preset state is that B is less than A*X; B is the eccentricity of the inner tube, A is the correction proportional coefficient, and X is the deformation of the damper.

[0124] S33 includes:

[0125] S331, determining whether the inner drum is in a third preset state;

[0126] S332, when the inner drum is in the third preset state, determining whether the accumulated time length of the inner drum in the third preset state is greater than the third preset time length;

[0127] S333: When the accumulated time that the inner drum is in the third preset state is greater than the third preset time, it indicates that the eccentricity of the inner drum meets the third preset condition;

[0128] S334: when the inner drum does not appear in the third preset state, or when the inner drum appears in the third preset state but the accumulated time for which the inner drum is in the third preset state is less than or equal to the third preset time, it indicates that the eccentricity of the inner drum does not meet the third preset condition;

[0129] The second correction value of the deformation is A*[XM / (m*K)], and the third preset state is that B is less than A*[XM / (m*K)]; B is the eccentricity of the inner cylinder, A is the correction proportional coefficient, X is the deformation of the damper, M is the weight of the clothes in the inner cylinder, m is the number of dampers, and K is the damping coefficient.

[0130] Additionally, the S34 includes:

[0131] S341, when the eccentricity of the inner cylinder does not meet the second preset condition or the third preset condition, it is determined that the damper is normal, that is, the structure of the damper is normal and has not aged;

[0132] S342, when the eccentricity of the inner cylinder meets the second preset condition or the third preset condition, it is determined that the damper is aged;

[0133] After determining that the damper is aged, the method for determining the fault condition also includes:

[0134] S343, comparing the eccentricity of the inner cylinder with a preset maximum eccentricity;

[0135] S344. Determine the fault condition of the damper according to the comparison result of the eccentricity of the inner tube and the preset maximum eccentricity.

[0136] Specifically, S344 includes:

[0137] When the eccentricity of the inner cylinder is less than the preset maximum eccentricity, it is determined that the damper is slightly aged;

[0138] When the eccentricity of the inner cylinder is greater than or equal to the preset maximum eccentricity, it is determined that the damper is seriously aged.

[0139] Example 4

[0140] This embodiment provides a control method for a clothes processing device, the control method including a clothes processing method and a method for determining a fault condition of a damper, the method for determining a fault condition of a damper is the method for determining a fault condition of a damper described in any one of Embodiments 1 and 3;

[0141] Before the clothes processing device runs the clothes processing method, a method for determining a fault condition of the damper is started;

[0142] After the clothes processing method is finished or after it is determined that the damper structure is damaged or aged seriously, the clothes processing device stops the fault condition determination method of the damper.

[0143] Further, the control method includes:

[0144] Before the clothes processing device runs the clothes processing method, the initial operation cycle Z of the clothes processing device is obtained. 0 ;

[0145] During the operation of the clothing treatment equipment, when it is determined that the damper is normal, after the operation of the clothing treatment equipment is completed, the current operation cycle is calculated as Z = Z 0 +1;

[0146] When it is determined that the damper is slightly aged, the clothes processing equipment is controlled to keep running, and the current running cycle is calculated as Z=Z 0 +1, and record the damper and the current operating cycle Z=Z 0 +1, controls the clothing processing equipment to send out a fault warning signal, and reminds the user and maintenance personnel to repair the damper in time;

[0147] When it is determined that the damper is seriously aged, the clothes processing device is controlled to stop running or the inner drum rotates at a preset speed, and the current operation cycle is calculated as Z=Z 0 +1, and record the damper and the current operating cycle Z=Z 0 +1, control the clothes processing equipment to send out fault warning signals; to prevent the risk of drum collision, the inner drum can run at a preset speed for washing, dehydration and drying;

[0148] The preset rotation speed is lower than the preset maximum rotation speed.

[0149] During the operation of the clothing processing equipment, the fault condition of the damper can be comprehensively judged by the weight of the clothing in the inner drum, the eccentricity of the inner drum and the deformation of the damper, and the judgment is accurate and timely; the model of the damper, the parameters of the damper and the operation cycle of the clothing processing equipment can be recorded, accurately reflecting the fault condition of the damper and the operation condition of the clothing processing equipment, so that users and maintenance personnel can find the aged damper in time, reducing the difficulty of maintaining the damper, improving the efficiency of tracing faults in maintaining the clothing processing equipment, solving the problem of excessive eccentricity of the inner drum when the damper is aged, and solving the problem of unreliable operation of the clothing processing equipment; effectively warning of the fault condition of the damper, evaluating the impact of structural damage and aging of the damper on the normal operation of the clothing processing equipment and taking corresponding measures; after determining that the damper structure is damaged and / or aged, on the one hand, the clothing processing equipment can be controlled to stop running, and on the other hand, the inner drum can be controlled to rotate at a preset speed to prevent the inner drum from hitting the drum.

[0150] Example 5

[0151] This embodiment provides a clothes processing device, which includes a box, an outer drum and an inner drum, wherein the outer drum is arranged inside the box and a damper is connected between the outer drum and the box; a plurality of dampers are provided, and a fault condition of each damper can be determined; and the inner drum is rotatably arranged inside the outer drum;

[0152] The clothing processing device adopts the method for determining the fault condition of the damper described in any one of Examples 1 and 3 to determine the fault condition of the damper; and / or, the clothing processing device adopts the control method for the clothing processing device described in Example 4.

[0153] Further, if Figure 3 As shown, the clothing processing device also includes a damper fault warning device, which includes a detection module, a warning control module and a warning communication module. The detection module includes a displacement sensor, a pressure sensor and a vibration sensor. The displacement sensor is used to detect the deformation of the damper, the pressure sensor is used to detect the weight of the clothes in the inner drum, and the vibration sensor is used to detect the eccentricity of the inner drum;

[0154] The early warning communication module is used to communicate with the detection module and the early warning control module. The early warning control module is used to control the operation of the clothing processing equipment according to the data transmitted by the detection module, and the early warning control module includes an early warning memory, which is used to store the model of the damper, the deformation of the damper, the weight of the clothes in the inner drum, the eccentricity of the inner drum, and the correspondence between the damper in a faulty state and the operating cycle.

[0155] Example 6

[0156] like Figure 2As shown, different from Embodiments 2 and 3, this embodiment proposes a control method for a laundry processing device; preferably, the laundry processing device is a washing machine, and the control method comprises: before each operation of the washing machine, first reading the initial operation cycle Z of the washing machine 0 (A complete washing process of the washing machine is considered as one operation cycle. 0 Initially 0), start recording the current operating status, then run the weighing program to obtain the weight M of the clothes in the inner drum; during the operation of the washing machine, the deformation of each damper X is detected in real time throughout the whole process n (t) (n=1, 2, ...m, m is the total number of dampers) and eccentricity B(t), which reflects the balance of the washing machine and is related to the deformation X of each damper. n (t) is in a certain proportion. During the operation of the washing machine, it is determined whether "X n (t)>X max And P (t>50ms) ≥3”, X max is the maximum deformation of the damper design limit. If it is satisfied, it means that the structure of the damper is seriously damaged, which will seriously affect the normal operation of the washing machine and cause the damper deformation X n (t) Exceeds the maximum deformation value X several times during the washing process max ; To avoid misjudgment, it is necessary to determine whether "P(t 1 >50ms)≥3”, that is, “X n (t)>X max The cumulative duration of "t 1 It needs to be longer than 50ms to be considered effective, otherwise it is considered interference, and t 1 >50ms times P is greater than 3; if "X n (t)>X max And P (t 1 >50ms)≥3”, the washing machine is controlled to stop running and send out a fault alarm signal to remind users and technicians to repair the damper in time and make the current running cycle Z=Z 0 +1, record the number n of the aged damper and the corresponding operating cycle Z;

[0157] If "X" is not satisfied n (t)>X max And P (t 1 >50ms)≥3", then compare "M and M min ”,M min The minimum weight of the set clothes (M min The preferred value is 0.5kg); if M<M min , it means that the clothes in the inner tube are very light and can be regarded as an empty tube; at this time, it is judged whether "B(t)<A*Xn (t) and t 2 >3s", that is, "B(t)<A*X n The cumulative duration of "t" 2 It is considered valid only if it exceeds 3s; if M>M min , then it is necessary to consider the influence of the clothes in the inner tube on the deformation of the damper; determine whether "B(t)<A*[X n (t)-M / (m*K)] and t 2 >3s”(K is the damping coefficient, m is the number of dampers, M / (m*K) is the average value of the influence of the weight of the inner tube on the deformation of the damper, and A is the correction proportional coefficient); if it does not meet the requirement of “B(t)<A*X n (t) and t 2 >3s” or “B(t)<A*[X n (t)-M / mK] and t 2 >3s", it means the damper is not aged, after the washing process is completed, the current operation cycle Z=Z 0 +1; if "B(t)<A*X n (t) and t 2 >3s” or “B(t)<A*[X n (t)-M / (m*K)] and t 2 >3s", it means that the damper numbered n is aged, affecting the overall eccentricity;

[0158] Next, compare "B(t) and B5". Here, B5 is the maximum eccentricity of the inner drum allowed in the high-speed dehydration stage of the washing machine. As shown in Table 1, the eccentricity of the inner drum is divided into several intervals (B5>B4>B3>B2>B1>0). The smaller the eccentricity, the more stable the state of the inner drum and the higher the speed that can be achieved. If the eccentricity is large and the speed exceeds the corresponding threshold, there is a risk of drum collision. If B(t)≤B5, it means that the aging of the damper has a certain impact on the eccentricity of the inner drum, but the washing machine can still operate. At this time, let the operation cycle Z=Z 0 +1, a fault warning signal is issued to remind users and technicians to maintain or replace the damper; if B(t)>B5, it means that the damper is seriously aged, resulting in a large eccentricity of the inner drum, and there is a risk of drum collision. At this time, the washing machine is controlled not to enter the high-speed dehydration stage, but only to run in low-speed mode (for example, the inner drum is controlled to rotate at a preset speed S, S<200r / min), and operations such as rinsing, washing and low-speed dehydration can be performed, so that the operation cycle Z=Z 0 +1, a maintenance alarm signal is issued to remind users and technicians to carry out maintenance in time and record the aging damper number n and operation cycle Z.

[0159] Table 1 Correspondence between the eccentricity range and the maximum speed of the inner cylinder

[0160]

[0161] The damper fault warning device is arranged on the washing machine, and comprises a detection module, a warning control module and a warning communication module. The detection module comprises a plurality of sensors, such as a displacement sensor, an infrared sensor, a vibration sensor, etc. The displacement sensor is used to detect the deformation of the damper, and the vibration sensor is used to detect the eccentricity of the inner drum; the warning communication module is used to connect the detection module and the warning control module in communication;

[0162] The early warning control module includes an early warning memory, which includes but is not limited to a read-only early warning memory (ROM), a programmable early warning memory (PROM), an erasable programmable read-only early warning memory (EPROM), an electronically erasable rewritable read-only early warning memory (EEPROM), a FLASH early warning memory, etc.; the early warning memory records the batch of the damper, the deformation of the damper, and other parameters of the damper;

[0163] The damper fault warning device is connected to the communication module of the main control device of the washing machine through the warning communication module. For example, WiFi, broadband, Bluetooth and other communication methods can be used for communication connection. The detection module is responsible for detecting the deformation of the damper and the eccentricity of the inner drum and other information. The warning control module determines whether there is a problem with the damper, records and stores the damper-related information of each operating cycle, and provides the relevant information to the main control device of the washing machine; the main control device is generally an information terminal (server, cloud, etc.) held by a technician, which is responsible for collating and collecting relevant information of each damper fault warning device, recording the failure conditions of each batch of washing machines and the corresponding dampers, so as to facilitate maintenance and tracing by technicians.

[0164] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A method for determining a fault condition of a damper, used in a clothes processing device; the clothes processing device comprises an outer drum, an inner drum and a damper, the inner drum is rotatably arranged in the outer drum, and the damper is used to reduce the vibration of the outer drum; characterized in that: The fault condition determination method comprises: When the clothes processing device is running, the deformation amount of the damper and the eccentricity of the inner drum are obtained in real time; Determine whether the deformation of the damper satisfies a first preset condition; when the deformation of the damper satisfies the first preset condition, determine that the damper structure is damaged; when the deformation of the damper does not satisfy the first preset condition, determine the fault condition of the damper according to the deformation of the damper and the eccentricity of the inner cylinder; or, Determining a fault condition of the damper according to the deformation of the damper and the eccentricity of the inner cylinder; The parameters related to the first preset condition include the cumulative time that the damper is in a first preset state and the number of times the first preset state occurs within an operation cycle of the clothes processing device, and the first preset state is that the deformation amount is greater than the preset maximum deformation amount; Determining the fault condition of the damper according to the deformation amount of the damper and the eccentricity of the inner cylinder comprises: According to the magnitude relationship between the eccentricity and the correction value of the deformation, it is judged whether the damper is in an abnormal state; when the damper is in an abnormal state, the fault condition of the damper is determined according to the accumulated duration of the abnormal state of the damper; wherein, the larger the weight interval to which the weight of the clothes in the inner tube belongs, the smaller the correction value of the deformation; or, Compare the weight of the clothing in the inner barrel with the preset weight; when the weight of the clothing in the inner barrel is less than or equal to the preset weight, determine whether the eccentricity of the inner barrel satisfies the second preset condition; when the weight of the clothing in the inner barrel is greater than the preset weight, determine whether the eccentricity of the inner barrel satisfies the third preset condition; determine the fault condition of the damper according to the judgment result of whether the eccentricity of the inner barrel satisfies the second preset condition or the third preset condition; wherein the parameters related to the second preset condition include the accumulated time that the inner barrel is in the second preset state, and the second preset state is a first correction value that the eccentricity is less than the deformation amount; the parameters related to the third preset condition include the accumulated time that the inner barrel is in the third preset state, and the third preset state is a second correction value that the eccentricity is less than the deformation amount; the first correction value is greater than the second correction value.

2. The method for determining a fault condition of a damper according to claim 1, characterized in that: The determining whether the damper is in an abnormal state according to the magnitude relationship between the eccentricity and the correction value of the deformation comprises: Comparing the weight of the clothes in the inner tube with a preset weight; When the weight of the garment inside the inner tube is less than or equal to the preset weight, the eccentricity is compared with the first correction value of the deformation; if the eccentricity is less than the first correction value of the deformation, it is determined that the damper is in an abnormal state; otherwise, it is determined that the damper is not in an abnormal state; When the weight of the clothes in the inner tube is greater than the preset weight, the eccentricity is compared with the second correction value of the deformation; if the eccentricity is less than the second correction value of the deformation, it is determined that the damper is in an abnormal state; otherwise, it is determined that the damper is not in an abnormal state; Wherein, the first correction value is greater than the second correction value.

3. The method for determining a fault condition of a damper according to claim 2, characterized in that: Determining the fault condition of the damper according to the accumulated duration of the abnormal state of the damper includes: When the eccentricity is less than the first correction value of the deformation, it is determined that the inner cylinder is in a second preset state; the accumulated time of the second preset state is compared with the second preset time; when the accumulated time of the second preset state is greater than the second preset time, it is determined that the damper is aged; When the eccentricity is less than the second correction value of the deformation, it is determined that the inner cylinder is in a third preset state; the accumulated time of the third preset state is compared with the third preset time; when the accumulated time of the third preset state is greater than the third preset time, it is determined that the damper is aged; Among them, the first correction value of the deformation amount is A*X, and the second preset state is that B is less than A*X; the second correction value of the deformation amount is A*[XM / (m*K)], and the third preset state is that B is less than A*[XM / (m*K)]; B is the eccentricity of the inner cylinder, A is the correction proportional coefficient, X is the deformation amount of the damper, M is the weight of the clothes in the inner cylinder, m is the number of the dampers, and K is the damping coefficient.

4. The method for determining a fault condition of a damper according to claim 1, characterized in that: The step of determining the fault condition of the damper according to the result of judging whether the eccentricity of the inner cylinder satisfies the second preset condition or the third preset condition comprises: When the eccentricity of the inner cylinder does not satisfy the second preset condition or the third preset condition, determining that the damper is normal; When the eccentricity of the inner cylinder satisfies the second preset condition or the third preset condition, it is determined that the damper is aged.

5. The method for determining a fault condition of a damper according to claim 3 or 4, characterized in that: After determining that the damper is aged, the fault condition determination method further includes: comparing the eccentricity of the inner cylinder with a preset maximum eccentricity; The aging degree of the damper is determined according to a comparison result between the eccentricity of the inner cylinder and a preset maximum eccentricity.

6. The method for determining a fault condition of a damper according to claim 5, characterized in that: Determining the aging degree of the damper according to the comparison result between the eccentricity of the inner cylinder and the preset maximum eccentricity includes: When the eccentricity of the inner cylinder is less than the preset maximum eccentricity, it is determined that the damper is slightly aged; When the eccentricity of the inner cylinder is greater than or equal to the preset maximum eccentricity, it is determined that the damper is seriously aged.

7. The method for determining a fault condition of a damper according to claim 1, characterized in that: The determining whether the deformation amount of the damper meets the first preset condition comprises: During an operation cycle of the clothes processing device, determining whether the damper is in the first preset state; When the damper appears in the first preset state, determining whether the accumulated time length of the damper being in the first preset state is greater than the first preset time length, and determining whether the number of times the damper appears in the first preset state is greater than or equal to a preset number; When the accumulated time length of the damper being in the first preset state is greater than the first preset time length and the number of times the damper appears in the first preset state is greater than or equal to a preset number of times, it indicates that the deformation amount of the damper meets the first preset condition; When the damper does not appear in the first preset state, or the damper appears in the first preset state but the cumulative time that the damper is in the first preset state is less than or equal to the first preset time, or the damper appears in the first preset state and the cumulative time that the damper is in the first preset state is greater than the first preset time but the number of times the damper appears in the first preset state is less than the preset number, it means that the deformation of the damper does not meet the first preset condition.

8. The method for determining a fault condition of a damper according to claim 1, characterized in that: The determining whether the eccentricity of the inner cylinder satisfies a second preset condition comprises: Determining whether the inner cylinder is in the second preset state; When the inner cylinder is in the second preset state, determining whether the accumulated time length of the inner cylinder in the second preset state is greater than the second preset time length; When the accumulated time length of the inner cylinder being in the second preset state is greater than the second preset time length, it indicates that the eccentricity of the inner cylinder meets the second preset condition; When the inner cylinder does not appear in the second preset state, or when the inner cylinder appears in the second preset state but the accumulated time for which the inner cylinder is in the second preset state is less than or equal to the second preset time, it indicates that the eccentricity of the inner cylinder does not meet the second preset condition; The determining whether the eccentricity of the inner cylinder satisfies a third preset condition comprises: Determining whether the inner cylinder is in the third preset state; When the inner cylinder is in the third preset state, determining whether the accumulated time length of the inner cylinder in the third preset state is greater than the third preset time length; When the accumulated time length of the inner cylinder being in the third preset state is greater than the third preset time length, it indicates that the eccentricity of the inner cylinder meets the third preset condition; When the inner cylinder does not appear in the third preset state, or when the inner cylinder appears in the third preset state but the accumulated time for which the inner cylinder is in the third preset state is less than or equal to the third preset time, it indicates that the eccentricity of the inner cylinder does not meet the third preset condition; Among them, the first correction value of the deformation amount is A*X, and the second preset state is that B is less than A*X; the second correction value of the deformation amount is A*[XM / (m*K)], and the third preset state is that B is less than A*[XM / (m*K)]; B is the eccentricity of the inner cylinder, A is the correction proportional coefficient, X is the deformation amount of the damper, M is the weight of the clothes in the inner cylinder, m is the number of the dampers, and K is the damping coefficient.

9. A method for controlling a clothes processing device, characterized in that: The control method includes a laundry processing method and a fault condition determination method of a damper according to any one of claims 1 to 8; The laundry processing device starts a fault condition determination method of the damper before running the laundry processing method; The laundry processing device stops the method for determining a fault condition of the damper after the laundry processing method is finished or after determining that the damper structure is damaged or aged seriously.

10. The control method of the clothes processing device according to claim 9, characterized in that: The control method comprises: Before the clothes treating device runs the clothes treating method, obtaining an initial operation cycle Z0 of the clothes treating device; During the operation of the laundry processing device, when it is determined that the damper is normal, after the operation of the laundry processing device is finished, the current operation cycle is calculated as Z=Z0+1; When it is determined that the damper is slightly aged, the clothes processing device is controlled to keep running, the current operation cycle is calculated as Z=Z0+1, and the corresponding relationship between the damper and the current operation cycle Z=Z0+1 is recorded, and the clothes processing device is controlled to send a fault warning signal; When it is determined that the damper is seriously aged, the clothes processing device is controlled to stop running or the inner drum is rotated at a preset speed, the current operation cycle is calculated as Z=Z0+1, and the corresponding relationship between the damper and the current operation cycle Z=Z0+1 is recorded, and the clothes processing device is controlled to send a fault warning signal; Wherein, the preset rotation speed is lower than the preset maximum rotation speed.

11. A clothes processing device, characterized in that: The laundry processing device comprises a box, an outer drum and an inner drum, wherein the outer drum is arranged inside the box and a damper is connected between the outer drum and the box; the inner drum is rotatably arranged inside the outer drum; The clothing processing device adopts the fault condition determination method of the damper described in any one of claims 1 to 8 to determine the fault condition of the damper; and / or, the clothing processing device adopts the control method of the clothing processing device described in any one of claims 9 to 10.

12. The clothes processing device according to claim 11, characterized in that: The clothing processing device further comprises a damper fault warning device, the damper fault warning device comprises a detection module, a warning control module and a warning communication module, the detection module comprises a displacement sensor, a pressure sensor and a vibration sensor, the displacement sensor is used to detect the deformation of the damper, the pressure sensor is used to detect the weight of the clothing in the inner drum, and the vibration sensor is used to detect the eccentricity of the inner drum; The early warning communication module is used to communicate with the detection module and the early warning control module, and the early warning control module is used to control the operation of the clothing processing equipment according to the data transmitted by the detection module, and the early warning control module includes an early warning memory, which is used to store the model of the damper, the deformation of the damper, the weight of the clothes in the inner drum, the eccentricity of the inner drum, and the correspondence between the damper in a faulty state and the operating cycle.

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