Washing machine and washing machine control method

Abstract

The invention belongs to the technical field of clothes processing equipment, and discloses a washing machine and a washing machine control method.The washing machine comprises a box body and an outer barrel arranged in the box body, an elastic hanging piece is connected between the box body and the outer barrel, and the washing machine further comprises a safety monitoring module and a control module which are in communication connection; the control module is used for controlling the washing machine to stop running when the safety monitoring module detects that the connection state of the elastic hanging piece is abnormal. Whether the connecting state of the elastic hanging piece between the outer barrel and the box body is abnormal or not can be monitored in real time through the arranged safety monitoring module, if the connecting state of the elastic hanging piece is normal, the washing machine operates normally, and if the connecting state of the elastic hanging piece is abnormal, the control module controls the washing machine to stop operating. The washing machine body is prevented from being damaged or large jumping caused by continuous operation of the washing machine in the failure state of the elastic hanging piece, economic losses of a user are reduced, and the operation safety of the washing machine and the safety of the surrounding environment are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes processing equipment, in particular to a washing machine and a washing machine control method. BACKGROUND

[0002] The drum washing machine comprises a cabinet, an outer drum arranged in the cabinet and capable of storing water, and an inner drum arranged in the outer drum, the inner drum rotates relative to the outer drum under the action of a driving motor to clean clothes. During the rotation of the inner drum to clean clothes, the inner drum and the outer drum will vibrate, thereby causing the whole washing machine to shake and generate noise.

[0003] In order to reduce the shaking of the inner drum and the outer drum, reduce the vibration frequency and noise, a flexible hanging piece, such as a hanging spring, is usually arranged between the outer drum and the cabinet, one end of the hanging spring is hooked on the outer drum, and the other end is hooked on the inner wall of the cabinet, the hanging spring plays a role of absorbing vibration and reducing noise during the operation of the washing machine.

[0004] However, when the vibration frequency of the washing machine exceeds a limited value, or after long-term use of the washing machine, the hanging spring will inevitably have problems such as spring force attenuation, breakage, and falling off, which will cause the elastic connection between the upper end of the outer drum and the cabinet to be disconnected. After the hanging spring falls off, if the washing machine cannot be detected and continues to operate, it may cause damage to the machine itself and even may cause the whole washing machine to jump, which has certain danger.

[0005] Therefore, there is an urgent need for a washing machine and a washing machine control method to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a washing machine and a washing machine control method, which can detect the falling off of the hanging spring of the washing machine in time, avoid the washing machine from continuing to operate and causing damage or large jumping, and improve the operation safety of the washing machine.

[0007] To achieve this purpose, the present application adopts the following technical solutions:

[0008] In a first aspect, a washing machine is provided, comprising a cabinet and an outer drum arranged in the cabinet, a flexible hanging piece is connected between the cabinet and the outer drum, and the washing machine further comprises:

[0009] A safety monitoring module and a control module are communicatively connected, and the control module is configured to control the washing machine to stop operating when the safety monitoring module detects that the connection state of the flexible hanging piece is abnormal.

[0010] In the technical scheme, the safety monitoring module is arranged to monitor the connection state of the elastic hanging piece between the outer drum and the cabinet in real time, if the connection state of the elastic hanging piece is normal, the washing machine is in normal operation, and if the connection state of the elastic hanging piece is abnormal, the control module controls the washing machine to stop operation, so that the washing machine is prevented from continuing to operate in the invalid state of the elastic hanging piece, the washing machine body is prevented from being damaged or large vibration is prevented from being generated, economic loss of a user is reduced, and operation safety of the washing machine and safety of the surrounding environment are improved.

[0011] In the preferred washing machine, the abnormal connection state of the elastic hanging piece includes at least one of the following:

[0012] The connection between the elastic hanging piece and the cabinet is disconnected, the connection between the elastic hanging piece and the outer drum is disconnected, the elastic hanging piece is broken, and the elastic force of the elastic hanging piece is attenuated.

[0013] In the preferred washing machine, a plurality of elastic hanging pieces are arranged, and the safety monitoring module is arranged corresponding to at least one of the elastic hanging pieces.

[0014] The elastic hanging piece includes a spring ring capable of elastically deforming, and a first hook and a second hook respectively arranged at two ends of the spring ring, the first hook is hooked on the cabinet, and the second hook is hooked on the outer drum.

[0015] The safety monitoring module includes a first pressure detection piece clamped between the first hook and the cabinet, and when a detection value of the first pressure detection piece is lower than a first threshold value, the connection state of the elastic hanging piece is abnormal.

[0016] And / or, the safety monitoring module includes a second pressure detection piece clamped between the second hook and the outer drum, and when a detection value of the second pressure detection piece is lower than a second threshold value, the connection state of the elastic hanging piece is abnormal.

[0017] In the preferred washing machine, a first mounting groove is arranged on the cabinet, the first hook is hooked in the first mounting groove, and the first pressure detection piece is arranged on a groove wall of the first mounting groove.

[0018] And / or, a second mounting groove is arranged on the outer drum, the second hook is hooked in the second mounting groove, and the second pressure detection piece is arranged on a groove wall of the second mounting groove.

[0019] In the preferred washing machine, the safety monitoring module includes a first tension detection piece, the elastic hanging piece is connected to the cabinet through the first tension detection piece, and when a detection value of the first tension detection piece is lower than a third threshold value, the connection state of the elastic hanging piece is abnormal.

[0020] And / or, the safety monitoring module comprises a second tension detection member, the elastic hanging member is connected with the outer cylinder through the second tension detection member, when the detection value of the second tension detection member is lower than a fourth threshold value, the connection state of the elastic hanging member is abnormal.

[0021] As a preferred scheme of the washing machine provided by the present application, the washing machine further comprises a protective elastic member, two ends of the protective elastic member are connected to the cabinet and the outer cylinder respectively, when the connection state of the elastic hanging member is normal, the elastic force of the protective elastic member is smaller than the elastic force of the elastic hanging member.

[0022] As a preferred scheme of the washing machine provided by the present application, the safety monitoring module comprises a third tension detection member, the third tension detection member is used for detecting the elastic force value on the protective elastic member, when the elastic force value exceeds an elastic force threshold value, the connection state of the elastic hanging member is abnormal.

[0023] As a preferred scheme of the washing machine provided by the present application, the safety monitoring module is further used for detecting the vibration frequency of the elastic hanging member, when the detection value of the safety monitoring module exceeds a frequency threshold value, the control module controls the washing machine to adjust the washing parameter.

[0024] As a preferred scheme of the washing machine provided by the present application, the washing machine further comprises an inner cylinder and a driving module, the inner cylinder is arranged in the outer cylinder, the driving module is used for driving the inner cylinder to rotate, the washing parameter comprises the rotation speed of the inner cylinder, when the detection value of the safety monitoring module exceeds the frequency threshold value, the control module reduces the rotation speed of the inner cylinder; and / or, the washing machine further comprises a damping unit arranged between the bottom of the outer cylinder and the cabinet, the washing parameter comprises the damping coefficient of the damping unit, when the detection value of the safety monitoring module exceeds the frequency threshold value, the control module increases the damping coefficient.

[0025] As a preferred scheme of the washing machine provided by the present application, the washing machine further comprises an alarm module in communication connection with the control module, the control module is used for controlling the alarm module to send an alarm signal when the connection state of the elastic hanging member is abnormal.

[0026] In a second aspect, a washing machine control method is provided, the washing machine comprises a cabinet and an outer cylinder arranged in the cabinet, an elastic hanging member is connected between the cabinet and the outer cylinder, the washing machine control method comprises the following steps:

[0027] Detecting the connection state of the elastic hanging member;

[0028] Controlling the washing machine to stop running when the connection state of the elastic hanging member is abnormal.

[0029] The beneficial effects of the present application are as follows:

[0030] The present application provides a washing machine and a washing machine control method, through the safety monitoring module arranged, the connection state of the elastic hanging piece between the outer drum and the cabinet can be monitored in real time, if the connection state of the elastic hanging piece is normal, the washing machine runs normally, if the connection state of the elastic hanging piece is abnormal, the control module controls the washing machine to stop running, avoids the washing machine to continue running in the invalid state of the elastic hanging piece to damage the washing machine body or produce larger jumping, reduces the economic loss of the user, improves the running safety of the washing machine and the safety of the surrounding environment. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by the drawings without paying creative labor for the person skilled in the art.

[0032] Figure 1 is a structural schematic diagram of the washing machine provided by the embodiment of the present application;

[0033] Figure 2 is a connection schematic diagram of the control module of the washing machine and each module provided by the embodiment of the present application;

[0034] Figure 3 is a first connection schematic diagram of the elastic hanging piece and the first hanging rack on the cabinet provided by the embodiment of the present application;

[0035] Figure 4 is a second connection schematic diagram of the elastic hanging piece and the first hanging rack on the cabinet provided by the embodiment of the present application;

[0036] Figure 5 is a first flowchart of the washing machine control method provided by the embodiment of the present application;

[0037] Figure 6 is a second flowchart of the washing machine control method provided by the embodiment of the present application;

[0038] Figure 7 is a third flowchart of the washing machine control method provided by the embodiment of the present application;

[0039] Figure 8 is a fourth flowchart of the washing machine control method provided by the embodiment of the present application;

[0040] Figure 9 is a fifth flowchart of the washing machine control method provided by the embodiment of the present application;

[0041] Figure 10 is a sixth flow chart of the washing machine control method provided in the specific embodiment of the present application;

[0042] Figure 11 is a seventh flow chart of the washing machine control method provided in the specific embodiment of the present application;

[0043] In the drawings:

[0044] 1, box; 2, outer cylinder; 3, elastic hanging piece; 4, safety monitoring module; 5, control module; 6, protective elastic piece; 7, inner cylinder; 8, driving module; 9, damping unit; 10, alarm module;

[0045] 11, first hanging bracket; 110, first mounting groove; 111, first stopper;

[0046] 31, first hook; 32, second hook; 33, spring ring;

[0047] 41, first pressure detection piece. DETAILED DESCRIPTION

[0048] The present application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to serve only for the purpose of explanation and are not intended to limit the present application in any manner. It should also be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings, rather than all the parts.

[0049] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless explicitly defined and limited otherwise, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and oblique above of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and oblique below of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0051] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0052] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0053] In the embodiments of the present invention, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments.

[0054] Example 1

[0055] like Figure 1 As shown, this embodiment provides a washing machine, including a housing 1, an outer drum 2 disposed within the housing 1, and an inner drum 7 disposed within the outer drum 2. The inner drum 7 is used to hold the laundry and can rotate within the outer drum 2 to clean the laundry. An elastic hanging member 3 is connected between the housing 1 and the outer drum 2. During the operation of the washing machine, the elastic hanging member 3 absorbs vibration and reduces noise.

[0056] Combination Figure 2 The washing machine provided in this embodiment also includes a safety monitoring module 4 and a control module 5 for communication connection. The safety monitoring module 4 is used to monitor whether the connection status of the elastic hanging component 3 is abnormal, and the control module 5 is used to control the washing machine to stop running when the safety monitoring module 4 detects that the connection status of the elastic hanging component 3 is abnormal.

[0057] One end of the elastic hanging component 3 is connected to the inner wall of the cabinet 1, and the other end is connected to the outer drum 2. When the connection of the elastic hanging component 3 is normal, it can effectively reduce vibration and noise during the operation of the washing machine. When the connection of the elastic hanging component 3 is abnormal, it cannot provide enough elasticity or even cannot provide elasticity at all. At this time, the washing machine will generate greater vibration and noise if it continues to run.

[0058] The connection state abnormality of the elastic hanging piece 3 includes at least one of the following four situations: the connection between the elastic hanging piece 3 and the cabinet 1 is disconnected (the upper end of the elastic hanging piece 3 is detached), the connection between the elastic hanging piece 3 and the outer drum 2 is disconnected (the lower end of the elastic hanging piece 3 is detached), the elastic hanging piece 3 is broken, and the elastic force of the elastic hanging piece 3 is attenuated. Exemplarily, the elastic hanging piece 3 is a spring, which is also called a hanging spring, a hanging spring, etc. After the washing machine is used for a long time, and under the influence of variable load, the spring may have an elastic force attenuation situation, although there is no problem of detachment or breakage, but it can no longer provide sufficient elastic force, which will also affect the normal operation of the washing machine.

[0059] It can be understood that the elastic hanging piece 3 is in any one of the following four situations: the connection between the elastic hanging piece 3 and the cabinet 1 is disconnected (the upper end of the elastic hanging piece 3 is detached), the connection between the elastic hanging piece 3 and the outer drum 2 is disconnected (the lower end of the elastic hanging piece 3 is detached), the elastic hanging piece 3 is broken, and the elastic force of the elastic hanging piece 3 is attenuated, which indicates that the connection state of the elastic hanging piece 3 is abnormal.

[0060] Further, when the amplitude of the washing machine is large, the elastic hanging piece 3 may be disconnected from both the cabinet 1 and the outer drum 2, that is, the connection state of the elastic hanging piece 3 includes the situation that both ends are detached; or the elastic hanging piece 3 may also be in an abnormal situation that both ends are detached and the elastic hanging piece 3 is also broken; or the elastic hanging piece 3 has an abnormal situation that the elastic force is attenuated and one end is detached, which will not be listed one by one here.

[0061] The washing machine provided in the embodiment can monitor in real time whether the connection state of the elastic hanging piece 3 between the outer drum 2 and the cabinet 1 is abnormal through the safety monitoring module 4 provided, that is, the above-mentioned connection state abnormality of the elastic hanging piece 3 can be monitored. If the connection state of the elastic hanging piece 3 is normal, the washing machine operates normally, if the connection state of the elastic hanging piece 3 is abnormal, the control module 5 controls the washing machine to stop running, avoids the washing machine from continuing to run in the invalid state of the elastic hanging piece 3 to damage the washing machine body or produce a large jump, reduces the economic loss of the user, and improves the operation safety of the washing machine and the safety of the surrounding environment.

[0062] The above-mentioned control of the washing machine to stop running means that the inner drum 7 of the washing machine is controlled to stop rotating. In combination with the above-mentioned safety monitoring module 4, the control module 5 can control the inner drum 7 of the washing machine to stop rotating when the connection state of the elastic hanging piece 3 is abnormal. Figure 2The washing machine further comprises a driving module 8, an output end of the driving module 8 being in transmission connection with the inner drum 7 to drive the inner drum 7 to rotate relative to the outer drum 2 around the axis of the inner drum 7. The driving module 8 is in communication connection with the control module 5 and can control the driving module 8 to start or stop and change the rotating speed. After the control module 5 receives the signal of the abnormal connection state of the elastic hanging piece 3 from the safety monitoring module 4, the control module 5 controls the driving module 8 to gradually reduce the rotating speed to 0 and drive the inner drum 7 to gradually stop rotating, so as to avoid the washing machine continuing to operate in the invalid state of the elastic hanging piece 3.

[0063] Exemplarily, the driving module 8 is a driving motor, an output shaft of the driving motor being in transmission connection with the inner drum 7.

[0064] Referring to Figure 3 The elastic hanging piece 3 comprises a spring ring 33 capable of elastically deforming and a first hook 31 and a second hook 32 separately arranged at two ends of the spring ring 33. The first hook 31 is hooked on the cabinet 1, and the second hook 32 is hooked on the outer drum 2, so as to realize the connection of the elastic hanging piece 3 between the cabinet 1 and the outer drum 2, which is convenient to install and reliable in connection.

[0065] In this embodiment, the safety monitoring module 4 comprises a first pressure detection piece 41 clamped between the first hook 31 and the cabinet 1, and the control module 5 is in communication connection with the first pressure detection piece 41. When the detection value of the first pressure detection piece 41 is lower than a first threshold value, the connection state of the elastic hanging piece 3 is abnormal. When the connection between the first hook 31 and the cabinet 1 is disconnected, at this time, the pressure value F1 detected by the first pressure detection piece 41 is 0, which indicates that the first hook 31 is detached. When the connection between the second hook 32 and the outer drum 2 is disconnected or the elastic hanging piece 3 is broken in the middle, at this time, the elastic hanging piece 3 is hung on the cabinet 1 as a whole or partially, and the pressure value F1 detected by the first pressure detection piece 41 is approximately equal to the gravity value of the elastic hanging piece 3, for example, 1N, 3N, 5N, etc. When the elastic force of the elastic hanging piece 3 attenuates, the pressure between the first hook 31 and the cabinet 1 is smaller than the pressure when the washing machine normally operates. For example, the pressure between the first hook 31 and the cabinet 1 when the washing machine normally operates is between 100N and 200N, which can ensure the stability of the washing machine during operation and can withstand the vibration and impact force generated during the washing process. The first threshold value is exemplarily taken in the range of 60N to 95N and can be preset on the computer board of the washing machine, for example, the first threshold value is taken as 60N, 70N, 80N, 85N, etc. Taking the value 85N as an example, when the pressure value F1 between the first hook 31 and the cabinet 1 detected by the first pressure detection piece 41 is lower than 85N, it indicates that the connection state of the elastic hanging piece 3 is abnormal.

[0066] Specifically, referring to Figure 3The box 1 is provided with a first hanging rack 11, the first hanging rack 11 is provided with a first mounting groove 110, the first hook 31 is hooked in the first mounting groove 110, and the first pressure detection piece 41 is arranged on the groove wall of the first mounting groove 110. The groove wall of the first mounting groove 110 not only provides a hooking basis for the first hook 31, but also provides a mounting basis for the first pressure detection piece 41. The first pressure detection piece 41 arranged at this position can detect the pressure value F1 between the elastic hanging piece 3 and the first hanging rack 11 on the box 1.

[0067] In other embodiments, the first mounting groove 110 can also be directly opened on the inner wall of the box 1.

[0068] The first pressure detection piece 41 is exemplarily a pressure sensor. By connecting the first pressure detection piece 41 into a corresponding loop, the pressure value F1 between the elastic hanging piece 3 and the first hanging rack 11 on the box 1 can be detected in real time.

[0069] Further, referring to Figure 4 The first mounting groove 110 is provided with a first stop piece 111 at the groove opening, and the first stop piece 111 is used to stop the first hook 31 from coming out of the first mounting groove 110. By arranging the first stop piece 111, the connection between the first hook 31 and the first hanging rack 11 can be strengthened, and the first hook 31 can be prevented from easily coming out of the first mounting groove 110.

[0070] Optionally, the first stop piece 111 is made of a flexible material to avoid rigid contact between the first hook 31 and the first stop piece 111. The first stop piece 111 is exemplarily rubber, which can be bonded to the first hanging rack 11. When the first hook 31 collides with the first stop piece 111, the first stop piece 111 can absorb the vibration on the elastic hanging piece 3.

[0071] In this embodiment, the safety monitoring module 4 is also used to detect the vibration frequency f of the elastic hanging piece 3, and the control module 5 controls the washing machine to adjust the washing parameter when the detection value of the safety monitoring module 4 exceeds the frequency threshold value, so as to reduce the vibration frequency of the washing machine (that is, reduce the vibration frequency f of the elastic hanging piece 3), and avoid the elastic hanging piece 3 from falling off due to the too high vibration frequency of the washing machine.

[0072] In this embodiment, the pressure between the elastic hanging piece 3 and the first hanging rack 11 changes all the time during the operation of the washing machine. By collecting the data change of the pressure value F1 in a unit time (such as 1s or 2s) through the first pressure detection piece 41, the vibration frequency f of the elastic hanging piece 3 can be obtained.

[0073] Exemplarily, the vibration frequency f of the elastic hanging piece 3 during normal operation of the washing machine is between 10 Hz and 30 Hz, and the elastic hanging piece 3 is at risk of falling off when the vibration frequency f exceeds the frequency range, and the frequency threshold is between 30 Hz and 50 Hz, for example, and is set to 40 Hz, and when the vibration frequency f of the elastic hanging piece 3 detected by the first pressure detection piece 41 is greater than 40 Hz, the control module 5 adjusts the washing parameter.

[0074] In some embodiments, the washing parameter includes the rotation speed of the inner drum, and the control module 5 reduces the rotation speed of the inner drum when the detected value of the safety monitoring module 4 exceeds the frequency threshold, so as to reduce the vibration frequency f of the elastic hanging piece 3 and prevent the elastic hanging piece 3 from falling off due to the excessively high vibration frequency of the machine body.

[0075] In some embodiments, referring to Figure 1 , the washing machine further comprises a damping unit 9 arranged between the bottom of the outer drum 2 and the cabinet 1, and the damping unit 9 can elastically support the outer drum 2 at the bottom of the outer drum 2, thereby achieving the effect of vibration reduction and noise reduction. The washing parameter includes the damping coefficient of the damping unit 9, and the control module 5 increases the damping coefficient when the detected value of the safety monitoring module 4 exceeds the frequency threshold, so as to more absorb the vibration and impact force generated during the washing process and reduce the vibration frequency f of the elastic hanging piece 3. Exemplarily, the damping coefficient of the damping unit 9 during normal operation of the washing machine is between 10 and 30, for example, and the damping coefficient is adjusted from 20 to 25 when the vibration frequency f of the elastic hanging piece 3 is greater than the frequency threshold. Alternatively, the computer board of the washing machine is preconfigured with a corresponding relationship between the vibration frequency f and the damping coefficient, and the damping coefficient can be adjusted according to the corresponding relationship according to the change of the vibration frequency f.

[0076] In some embodiments, the control module 5 adjusts both the rotation speed of the inner drum and the damping coefficient of the damping unit 9 when the vibration frequency f of the elastic hanging piece 3 is greater than the frequency threshold.

[0077] Alternatively, a plurality of elastic hanging pieces 3 are arranged, and at least one safety monitoring module 4 is arranged corresponding to one elastic hanging piece 3. Further, a safety monitoring module 4 can be arranged corresponding to each elastic hanging piece 3. The control module 5 is in communication connection with the plurality of safety monitoring modules 4, and the washing machine is controlled to stop running when any one safety monitoring module 4 detects that the connection state of the corresponding elastic hanging piece 3 is abnormal.

[0078] Exemplarily, two elastic hanging pieces 3 are arranged, and the two elastic hanging pieces 3 are symmetrically arranged relative to the central axis of the outer drum 2, and the first pressure detection piece 41 can be arranged only between one of the elastic hanging pieces 3 and the cabinet 1, or the first pressure detection piece 41 can be arranged between the two elastic hanging pieces 3 and the cabinet 1.

[0079] Embodiment Two

[0080] The embodiment provides a washing machine which is different from the washing machine in the first embodiment.

[0081] In the embodiment, the safety monitoring module 4 comprises a second pressure detection piece arranged between the second hook 32 and the outer drum 2, and the second pressure detection piece is in communication connection with the control module 5. When the detection value of the second pressure detection piece is lower than the second threshold value, the connection state of the elastic hanging piece 3 is abnormal. When the connection between the second hook 32 and the outer drum 2 is disconnected, the pressure value F2 detected by the second pressure detection piece is 0 at this time, which indicates that the second hook 32 is detached. When the connection between the first hook 31 and the cabinet 1 is disconnected or the elastic hanging piece 3 is broken in the middle, the second pressure detection piece detects that the pressure value F2 is approximately the gravity value of the elastic hanging piece 3, for example, 1N, 3N, 5N, etc. When the elastic force of the elastic hanging piece 3 attenuates, the pressure between the second hook 32 and the outer drum 2 is smaller than the pressure when the washing machine is normally running. For example, the pressure between the second hook 32 and the outer drum 2 when the washing machine is normally running is between 100N and 200N, which can ensure that the washing machine is stable during running and can withstand the vibration and impact force generated during the washing process. The second threshold value is exemplarily 60N to 95N, which can be preset on the computer board of the washing machine, for example, the second threshold value is 60N, 70N, 80N, 85N, etc. Taking the second threshold value of 85N as an example, when the pressure value F2 between the second hook 32 and the outer drum 2 detected by the second pressure detection piece is lower than 85N, it indicates that the connection state of the elastic hanging piece 3 is abnormal.

[0082] Optionally, a second hanging rack is arranged on the outer drum 2, the second hanging rack is provided with a second mounting groove, the second hook 32 is hooked in the second mounting groove, and the second pressure detection piece is arranged on the groove wall of the second mounting groove. The groove wall of the second mounting groove not only provides a hooking basis for the second hook 32, but also provides a mounting basis for the second pressure detection piece. The second pressure detection piece arranged at the position can detect the pressure value F2 between the elastic hanging piece 3 and the second hanging rack on the outer drum 2.

[0083] In other embodiments, the second mounting groove can also be directly arranged on the outer wall of the outer drum 2, but the sealing property of the outer drum 2 needs to be ensured.

[0084] The second pressure detection piece is exemplarily a pressure sensor. When the second pressure detection piece is connected to the corresponding loop, the pressure value F2 between the elastic hanging piece 3 and the second hanging rack on the outer drum 2 can be detected in real time.

[0085] Similarly to the first embodiment, the vibration frequency f of the elastic hanging piece 3 can be obtained by monitoring the pressure value data change of the second pressure detection piece.

[0086] Further, a second stopper is arranged at the slot of the second mounting slot, and the second stopper is used to stop the second hook 32 from being pulled out of the second mounting slot. By arranging the second stopper, the connection between the second hook 32 and the second hanger can be strengthened, and the second hook 32 can be prevented from being easily pulled out of the second mounting slot.

[0087] Optionally, the second stopper is made of flexible material, so as to avoid rigid contact between the second hook 32 and the second stopper. The second stopper is exemplarily made of rubber, and the second stopper can be bonded to the second hanger. When the second hook 32 collides with the second stopper, the second stopper can absorb the vibration on the elastic hanging component 3.

[0088] Embodiment Three

[0089] The embodiment provides a washing machine, which is different from the washing machines in the embodiments one and two in that:

[0090] In the embodiment, the safety monitoring module 4 comprises a first tension detection component, the elastic hanging component 3 is connected to the cabinet 1 through the first tension detection component, and the first tension detection component is in communication connection with the control module 5. When the detection value of the first tension detection component is lower than a third threshold value, the connection state of the elastic hanging component 3 is abnormal. The first tension detection component is essentially used to detect the tension value on the elastic hanging component 3. When the connection between the first hook 31 and the cabinet 1 is disconnected, the connection between the second hook 32 and the outer tub 2 is disconnected, and the elastic hanging component 3 is broken, the tension value F3 detected by the first tension detection component is 0 or close to 0. When the elastic force of the elastic hanging component 3 is attenuated, the tension value on the elastic hanging component 3 is smaller than that when the washing machine is normally operated. For example, the tension value on the elastic hanging component 3 is between 100 N and 200 N when the washing machine is normally operated. The third threshold value is exemplarily in the range of 60 N to 95 N, and can be preset on the computer board of the washing machine, for example, the third threshold value is 60 N, 70 N, 80 N, 85 N or the like. Taking the case that the third threshold value is 85 N as an example, when the tension value F3 on the elastic hanging component 3 detected by the first tension detection component is lower than 85 N, it indicates that the connection state of the elastic hanging component 3 is abnormal.

[0091] The first tension detection component is exemplarily a tension sensor, and the tension value F3 can be detected in real time by connecting the first tension detection component to a corresponding circuit. By collecting the tension value data change of the first tension detection component in a unit time (for example, 1 s or 2 s), the vibration frequency f of the elastic hanging component 3 can be obtained.

[0092] Embodiment Four

[0093] The embodiment provides a washing machine, which is different from the washing machines in the embodiments one, two and three in that:

[0094] The safety monitoring module 4 comprises a second tension detection member, the elastic hanging member 3 is connected with the outer tub 2 through the second tension detection member, and the second tension detection member is in communication connection with the control module 5. When the detection value of the second tension detection member is lower than the fourth threshold value, the connection state of the elastic hanging member 3 is abnormal. The second tension detection member is used for detecting the tension value on the elastic hanging member 3. When the connection between the first hook 31 and the cabinet 1 is disconnected, the connection between the second hook 32 and the outer tub 2 is disconnected, and the elastic hanging member 3 is broken, the tension value F4 detected by the second tension detection member is 0 or close to 0. After the elastic force of the elastic hanging member 3 is attenuated, the tension value on the elastic hanging member 3 is smaller than that when the washing machine is normally operated. For example, when the washing machine is normally operated, the tension value on the elastic hanging member 3 is between 100N and 200N. The fourth threshold value is exemplarily 60N to 95N, and can be preset on the computer board of the washing machine, for example, the fourth threshold value is 60N, 70N, 80N, 85N or the like. Taking the fourth threshold value 85N as an example, when the tension value F4 on the elastic hanging member 3 detected by the second tension detection member is lower than 85N, it indicates that the connection state of the elastic hanging member 3 is abnormal.

[0095] The second tension detection member is exemplarily a tension sensor, which is connected to a corresponding circuit to detect the tension value F4 in real time. By collecting the tension value data change of the second tension detection member in a unit time (for example, 1s or 2s), the vibration frequency f of the elastic hanging member 3 can be obtained.

[0096] Embodiment five

[0097] The embodiment provides a washing machine, which is improved on the basis of the above-mentioned embodiments.

[0098] Referring to Figure 1 The washing machine further comprises a protective elastic member 6, both ends of the protective elastic member 6 are connected to the cabinet 1 and the outer tub 2 respectively, and the elastic force of the protective elastic member 6 is smaller than the elastic force of the elastic hanging member 3 when the connection state of the elastic hanging member 3 is normal. When the washing machine is normally operated, the elastic hanging member 3 provides the main elastic force. When the connection state of the elastic hanging member 3 is abnormal, especially when the elastic hanging member 3 is detached or broken, the outer tub 2 can be pulled by the protective elastic member 6 to provide the elastic force, so as to prevent the vibration frequency and the vibration amplitude of the outer tub 2 from instantaneously increasing, and protect the internal structure of the washing machine from being damaged.

[0099] In this embodiment, the safety monitoring module 4 comprises a third tension detection member for detecting the elastic force value of the protective elastic member 6. For example, the protective elastic member 6 is connected to the cabinet 1 by the third tension detection member and / or the protective elastic member 6 is connected to the outer cylinder 2 by the third tension detection member, as long as the elastic force value of the protective elastic member 6 can be detected. When the connection state of the elastic hanging member 3 is abnormal, the protective elastic member 6 provides the elastic force at this time instead of the elastic hanging member 3, therefore, the elastic force of the protective elastic member 6 instantaneously increases, by monitoring the change of the elastic force, whether the connection state of the elastic hanging member 3 is abnormal can be detected. That is, when the elastic force value F5 detected by the third tension detection member exceeds the elastic force threshold value, the connection state of the elastic hanging member 3 is abnormal. For example, when the washing machine is normally operated, the elastic force range of the protective elastic member 6 is between 20N-60N. The above-mentioned elastic force threshold value can be 80N-150N, for example, the value is 100N, when the elastic force value F5 of the protective elastic member 6 exceeds 100N, the connection state of the elastic hanging member 3 is abnormal. The third tension detection member can be selected as a tension sensor.

[0100] Embodiment six

[0101] The embodiment provides a washing machine, which is improved on the basis of the above-mentioned embodiments.

[0102] Referring to Figure 2 , the washing machine further comprises an alarm module 10 in communication connection with the control module 5, and the control module 5 is used for controlling the alarm module 10 to send an alarm signal when the connection state of the elastic hanging member 3 is abnormal, so as to play a pre-warning role, and make the user know that the elastic hanging member 3 has failed, and timely maintenance treatment.

[0103] For example, the operation of sending the alarm signal comprises sending an alarm on the machine body of the washing machine, for example, sending an alarm through the way of light or text prompt on the display panel, or sending an alarm through the way of ringing, voice reminding or the like.

[0104] Further, the operation of sending the alarm signal further comprises sending the alarm signal to a monitoring background in communication connection with the washing machine, that is, pushing the fault information of the washing machine to the monitoring background, so that the relevant personnel know the fault condition of the washing machine, so as to contact the maintenance personnel to check and maintain as soon as possible, reduce the downtime of the washing machine, and make the washing machine quickly return to normal use.

[0105] Embodiment seven

[0106] Based on the same inventive concept as the above-mentioned embodiments, as shown in Figure 5 , the embodiment provides a washing machine control method, comprising the following steps:

[0107] detecting the connection state of the elastic hanging member 3;

[0108] The washing machine is controlled to stop running when the connection state of the elastic hanging piece 3 is abnormal.

[0109] Specifically, the safety monitoring module 4 provided in the embodiment can monitor whether the connection state of the elastic hanging piece 3 between the outer tub 2 and the cabinet 1 is abnormal in real time. If the connection state of the elastic hanging piece 3 is normal, the washing machine is normally operated. If the connection state of the elastic hanging piece 3 is abnormal, the control module 5 controls the washing machine to stop running, so as to avoid the washing machine from continuously running in the invalid state of the elastic hanging piece 3, which can damage the washing machine body or cause a large vibration, reduce the economic loss of the user, and improve the operation safety of the washing machine and the safety of the surrounding environment.

[0110] Embodiment Eight

[0111] The embodiment provides a washing machine control method, which is further improved on the basis of the embodiment seven.

[0112] As shown in Figure 6 the embodiment, the washing machine control method further includes the following steps:

[0113] An alarm signal is sent when the connection state of the elastic hanging piece 3 is abnormal. Specifically, when the connection state of the elastic hanging piece 3 is abnormal, the control module 5 controls the alarm module 10 to send an alarm, which serves as a warning prompt, so that the user knows that the elastic hanging piece 3 has failed and can be timely repaired.

[0114] The form of sending the alarm signal includes sending an alarm on the washing machine body and / or sending the alarm signal to a monitoring background connected in communication with the washing machine.

[0115] For example, the alarm can be sent on the display panel of the washing machine body in the form of light or text prompt, or in the form of a ringing bell, voice prompt, etc. The alarm signal is sent to a monitoring background connected in communication with the washing machine, that is, the fault information of the washing machine is pushed to the monitoring background, so that the relevant personnel know the fault condition of the washing machine, so as to contact the maintenance personnel to check and repair as soon as possible, reduce the downtime of the washing machine, and make the washing machine quickly return to normal use.

[0116] Referring to Figure 7 and Figure 8 , the washing machine control method further includes the following steps in the embodiment:

[0117] The vibration frequency f of the elastic hanging piece 3 is detected;

[0118] The washing machine is controlled to adjust the washing parameters when the vibration frequency exceeds the frequency threshold.

[0119] Specifically, the vibration frequency f of the elastic hanging piece 3 is acquired by the safety monitoring module 4, that is, the safety monitoring module 4 can monitor whether the connection state of the elastic hanging piece 3 is abnormal and can detect the vibration frequency f of the elastic hanging piece 3, and when the vibration frequency f exceeds the frequency threshold, the control module 5 controls the washing machine to adjust the washing parameter. The frequency threshold is, for example, between 30 Hz and 50 Hz. Adjusting the washing parameter includes adjusting the inner drum rotating speed and / or adjusting the damping coefficient of the damping unit 9, as described in Embodiment One.

[0120] Embodiment Nine

[0121] The present embodiment provides a washing machine control method, which is further improved on the basis of Embodiment Seven and Embodiment Eight.

[0122] The two ends of the elastic hanging piece 3 are hook-connected to the outer drum 2 and the cabinet 1. Detecting the connection state of the elastic hanging piece 3 includes the following steps: detecting the pressure value between the elastic hanging piece 3 and the cabinet 1 and / or the pressure value between the elastic hanging piece 3 and the outer drum 2; when the pressure value exceeds the pressure preset range, the connection state of the elastic hanging piece 3 is abnormal.

[0123] When the connection state of the elastic hanging piece 3 is normal, the pressure between the first hook 31 and the cabinet 1 and the pressure between the second hook 32 and the outer drum 2 are between 100 N and 200 N, which can ensure that the washing machine remains stable during operation and can withstand the vibration and impact force generated during the washing process. When the connection state of the elastic hanging piece 3 is abnormal, the pressure between the first hook 31 and the cabinet 1 and the pressure between the second hook 32 and the outer drum 2 decrease.

[0124] Specifically, referring to the flowchart shown in Figure 7 After the washing machine runs the washing program, the pressure value F1 between the elastic hanging piece 3 and the cabinet 1 is detected by the first pressure detection piece 41 arranged between the first hook 31 and the cabinet 1, and at the same time, the vibration frequency f of the elastic hanging piece 3 can be obtained by collecting the pressure value data detected by the first pressure detection piece 41. When the pressure value F1 is lower than the first threshold, it indicates that the pressure value F1 exceeds the pressure preset range, and the connection state of the elastic hanging piece 3 is abnormal. The first threshold value is, for example, 60 N to 95 N, which can be pre-set on the washing machine computer board, such as 60 N, 70 N, 80 N, 85 N, etc. Taking 85 N as an example, when the pressure value F1 between the first hook 31 and the cabinet 1 is detected by the first pressure detection piece 41 and is lower than 85 N, it indicates that the connection state of the elastic hanging piece 3 is abnormal.

[0125] Referring to Figure 8The flow chart shows that after the washing machine runs the washing program, the pressure value F2 between the elastic hanging piece 3 and the outer tub 2 is detected by the second pressure detection piece arranged between the second hook 32 and the outer tub 2, and at the same time, the vibration frequency f of the elastic hanging piece 3 can be obtained by collecting the pressure value data detected by the second pressure detection piece. When the pressure value F2 is lower than the second threshold value, it indicates that the pressure value F2 exceeds the pressure preset range, and the connection state of the elastic hanging piece 3 is abnormal. The second threshold value is exemplarily 60N-95N, which can be preset on the computer board of the washing machine, such as the second threshold value of 60N, 70N, 80N, 85N, etc. Taking the value of 85N as an example, when the pressure value F2 between the second hook 32 and the outer tub 2 is detected by the second pressure detection piece and is lower than 85N, it indicates that the connection state of the elastic hanging piece 3 is abnormal.

[0126] The first pressure detection piece 41 and the second pressure detection piece can be pressure sensors.

[0127] Embodiment Ten

[0128] The embodiment provides a washing machine control method, which is different from that of Embodiment Nine. In the embodiment, the connection state of the elastic hanging piece 3 comprises the following steps:

[0129] The elastic force value on the elastic hanging piece 3 is detected, and when the elastic force value exceeds the elastic force preset range, the connection state of the elastic hanging piece 3 is abnormal. During the operation of the washing machine, when the connection state of the elastic hanging piece 3 is normal, the elastic force value thereon is between 100N and 200N. If failure conditions such as fracture, falling off, and elastic force attenuation occur, the elastic force value on the elastic hanging piece 3 decreases.

[0130] Specifically, a first tension detection piece can be arranged between the elastic hanging piece 3 and the cabinet 1. Referring to Figure 9 The flow chart shows that after the washing machine runs the washing program, the tension value F3 (i.e. the elastic force value on the elastic hanging piece 3) between the elastic hanging piece 3 and the cabinet 1 is detected by the first tension detection piece arranged between the elastic hanging piece 3 and the cabinet 1, and at the same time, the vibration frequency f of the elastic hanging piece 3 can be obtained by collecting the tension value data detected by the first tension detection piece. When the tension value F3 is lower than the third threshold value, it indicates that the tension value F3 exceeds the elastic force preset range of the elastic hanging piece 3, and the connection state of the elastic hanging piece 3 is abnormal. The third threshold value is exemplarily 60N-95N, which can be preset on the computer board of the washing machine, such as the third threshold value of 60N, 70N, 80N, 85N, etc. Taking the value of 85N as an example, when the tension value F3 between the elastic hanging piece 3 and the cabinet 1 is detected by the first tension detection piece and is lower than 85N, it indicates that the connection state of the elastic hanging piece 3 is abnormal.

[0131] And / or, a second tension detection piece is arranged between the elastic hanging piece 3 and the outer tub 2. Referring to Figure 10As shown in the flowchart, after the washing machine runs the washing program, the second tension detection device set between the elastic hanger 3 and the outer drum 2 detects the tension value F4 (i.e., the elastic force value on the elastic hanger 3) between the elastic hanger 3 and the outer drum 2. Simultaneously, by collecting the tension value data detected by the second tension detection device, the vibration frequency f of the elastic hanger 3 can be obtained. When the tension value F4 is lower than the fourth threshold, it indicates that the tension value F4 exceeds the preset elastic force range of the elastic hanger 3, and the connection state of the elastic hanger 3 is abnormal. The fourth threshold value range is 60N to 95N, which can be preset on the washing machine's computer board. For example, the fourth threshold value can be 60N, 70N, 80N, 85N, etc. Taking 85N as an example, when the second tension detection device detects that the tension value F4 between the elastic hanger 3 and the outer drum 2 is lower than 85N, it indicates that the connection state of the elastic hanger 3 is abnormal.

[0132] The first and second tensile force detection components can be selected as tensile force sensors.

[0133] Example 11

[0134] This embodiment provides a washing machine control method, which differs from embodiments nine and ten in that:

[0135] like Figure 11 As shown, the elastic force value on the protective elastic element 6 is detected by a third tension detection device connected to the protective elastic element 6. The protective elastic element 6 is connected to the housing 1 and / or to the outer drum 2 via the third tension detection device, as long as the elastic force value F5 on the protective elastic element 6 can be detected. When the connection state of the elastic hanging element 3 is abnormal, the protective elastic element 6 provides the elastic force instead of the elastic hanging element 3. Therefore, the elastic force on the protective elastic element 6 increases instantaneously. By monitoring the change in this elastic force, it is possible to detect whether the connection state of the elastic hanging element 3 is abnormal. That is, when the elastic force value F5 detected by the third tension detection device exceeds the elastic force threshold, the connection state of the elastic hanging element 3 is abnormal. For example, when the washing machine is running normally, the elastic force range of the protective elastic element 6 is between 20N and 60N. The above-mentioned elastic force threshold can be between 80N and 150N, for example, 100N. When the elastic force value F5 on the protective elastic element 6 exceeds 100N, the connection state of the elastic hanging element 3 is abnormal. The third tensile force detection component can be a tensile force sensor.

[0136] like Figure 11 As shown, the safety monitoring module 4 may include a first pressure detection element 41 disposed between the first hook 31 and the housing 1, and a third tension detection element connected to the protective elastic element 6. Alternatively, the safety monitoring module 4 may also include a first tension detection element and a third tension detection element on the protective elastic element 6, which will not be listed here.

[0137] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A washing machine, comprising a casing (1) and an outer tub (2) disposed within the casing (1), wherein an elastic hanging member (3) connects the casing (1) and the outer tub (2), characterized in that, The washing machine also includes: The communication connection includes a safety monitoring module (4) and a control module (5), wherein the control module (5) is used to control the washing machine to stop running when the safety monitoring module (4) detects an abnormal connection status of the elastic hanging member (3).

2. The washing machine according to claim 1, characterized in that, The abnormal connection status of the elastic suspension component (3) includes: At least one of the following: the connection between the elastic hanging member (3) and the box body (1) is broken; the connection between the elastic hanging member (3) and the outer cylinder (2) is broken; the elastic hanging member (3) is broken; and the elasticity of the elastic hanging member (3) decreases.

3. The washing machine according to claim 2, characterized in that, Multiple elastic suspension components (3) are provided, and at least one elastic suspension component (3) is provided with the safety monitoring module (4); The elastic hanging component (3) includes an elastically deformable spring ring (33) and a first hook (31) and a second hook (32) respectively disposed at both ends of the spring ring (33). The first hook (31) is hooked on the box body (1), and the second hook (32) is hooked on the outer cylinder (2). The safety monitoring module (4) includes a first pressure detection element (41) sandwiched between the first hook (31) and the box (1). When the detection value of the first pressure detection element (41) is lower than the first threshold, the connection status of the elastic hanging part (3) is abnormal. And / or, the safety monitoring module (4) includes a second pressure detection element sandwiched between the second hook (32) and the outer cylinder (2), and when the detection value of the second pressure detection element is lower than the second threshold, the connection status of the elastic hanging part (3) is abnormal.

4. The washing machine according to claim 3, characterized in that, The housing (1) is provided with a first mounting groove (110), the first hook (31) is hooked in the first mounting groove (110), and the first pressure detection element (41) is provided on the groove wall of the first mounting groove (110). And / or, the outer cylinder (2) is provided with a second mounting groove, the second hook (32) is hooked in the second mounting groove, and the second pressure detection element is provided on the groove wall of the second mounting groove.

5. The washing machine according to claim 2, characterized in that, The safety monitoring module (4) includes a first tensile testing component. The elastic hanging component (3) is connected to the box (1) through the first tensile testing component. When the detection value of the first tensile testing component is lower than the third threshold, the connection status of the elastic hanging component (3) is abnormal. And / or, the safety monitoring module (4) includes a second tensile testing component, the elastic hanging component (3) is connected to the outer cylinder (2) through the second tensile testing component, and when the detection value of the second tensile testing component is lower than the fourth threshold, the connection status of the elastic hanging component (3) is abnormal.

6. The washing machine according to claim 2, characterized in that, The washing machine also includes a protective elastic element (6), the two ends of which are connected to the cabinet (1) and the outer drum (2) respectively. When the connection state of the elastic hanging part (3) is normal, the elastic force of the protective elastic element (6) is less than the elastic force of the elastic hanging part (3).

7. The washing machine according to claim 6, characterized in that, The safety monitoring module (4) includes a third tension detection component, which is used to detect the elastic force value on the protective elastic component (6). When the elastic force value exceeds the elastic force threshold, the connection status of the elastic hanging component (3) is abnormal.

8. The washing machine according to any one of claims 1-7, characterized in that, The safety monitoring module (4) is also used to detect the vibration frequency of the elastic hanging component (3), and the control module (5) controls the washing machine to adjust the washing parameters when the detection value of the safety monitoring module (4) exceeds the frequency threshold.

9. The washing machine according to claim 8, characterized in that, The washing machine also includes an inner drum (7) and a drive module (8). The inner drum (7) is disposed in the outer drum (2). The drive module (8) is used to drive the inner drum (7) to rotate. The washing parameters include the inner drum speed. The control module (5) reduces the inner drum speed when the detection value of the safety monitoring module (4) exceeds the frequency threshold. And / or, the washing machine further includes a damping unit (9) disposed between the bottom of the outer drum (2) and the cabinet (1), the washing parameters including the damping coefficient of the damping unit (9), and the control module (5) increasing the damping coefficient when the detection value of the safety monitoring module (4) exceeds the frequency threshold.

10. The washing machine according to any one of claims 1-7, characterized in that, The washing machine also includes an alarm module (10) that is communicatively connected to the control module (5). The control module (5) is used to control the alarm module (10) to issue an alarm signal when the connection status of the elastic hanging member (3) is abnormal.

11. A washing machine control method, the washing machine comprising a casing (1) and an outer tub (2) disposed within the casing (1), wherein an elastic hanging member (3) is connected between the casing (1) and the outer tub (2), characterized in that, The washing machine control method includes the following steps: Detect the connection status of the elastic suspension component (3); When the connection status of the elastic hanging member (3) is abnormal, the washing machine is controlled to stop running.

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