Damping device and clothes processing equipment

Abstract

The utility model provides a damping device and clothes processing equipment, the damping device comprises a hanging spring, one end of the hanging spring is connected with a box body, the other end of the hanging spring is connected with one side, far away from the ground, of a washing drum, the hanging spring is provided with a detection piece, and the detection piece is used for detecting the telescopic state of the hanging spring; one end of the shock absorber is connected with the box body, the other end of the shock absorber is connected with the side, close to the ground, of the washing drum, the shock absorber is in communication connection with the detection part, and the shock absorber is used for adjusting damping force according to the detection result of the detection part so as to absorb vibration of the washing drum. According to the damping device, when the washing cylinder vibrates, the hanging spring can stretch out and draw back along with vibration of the washing cylinder, the detection piece detects the stretching state of the hanging spring and transmits the detection result to the damper, and the damper adjusts the damping force of the damper according to the detection result; therefore, the rigidity of the shock absorber relative to the washing drum is changed, and corresponding vibration of the washing drum is absorbed.

Description

Technical Field

[0001] The present application belongs to the technical field of washing machines, and in particular, relates to a shock absorbing device and a clothing processing device. Background Art

[0002] Traditional drum washing machines usually use piston shock absorbers to support the washing drum to offset some of the vibration of the washing drum, wherein the damping force value of the piston shock absorber is a fixed value. However, during the use of the washing machine, the speed of the drum and the weight of the clothes load are constantly changing. When the vibration of the washing drum exceeds the shock absorption range of the piston shock absorber, the washing machine will produce greater vibration, thereby generating noise or displacement. Utility Model Content

[0003] The embodiments of the present application provide a shock absorbing device and a clothing processing device to solve the problem that the existing washing machine usually uses a piston shock absorber to support the washing drum, and the damping force value of the piston shock absorber is a fixed value. When the vibration of the washing drum exceeds the shock absorbing range of the piston shock absorber, the washing machine will produce a large vibration, thereby generating noise or displacement.

[0004] The embodiment of the present application provides a shock absorbing device, which is applied to a clothes processing device, wherein the clothes processing device includes a box and a washing drum, and the shock absorbing device includes:

[0005] A hanging spring, one end of which is connected to the box body, and the other end of which is connected to the side of the washing tub away from the ground, wherein a detection member is provided on the hanging spring, and the detection member is used to detect the extension and contraction state of the hanging spring;

[0006] A shock absorber, one end of which is connected to the box body, and the other end of which is connected to the side of the washing tub close to the ground. The shock absorber is in communication connection with the detection member, and is used to adjust the damping force according to the detection result of the detection member to absorb the vibration of the washing tub.

[0007] Optionally, the shock absorber comprises at least one pair, and the at least one pair of shock absorbers are arranged at intervals on a side of the washing tub facing the ground and are staggered along the axial direction of the washing tub.

[0008] Optionally, the detection component includes a resistance strain gauge, the resistance strain gauge is glued to the suspension spring, and the resistance value of the resistance strain gauge changes with the expansion and contraction of the suspension spring.

[0009] Optionally, the shock absorber comprises:

[0010] A shell, one end of which is connected to the box body, and the other end of which is provided with a mounting port, wherein a receiving cavity communicating with the mounting port is provided in the shell, and the shell is at least partially made of a magnetic conductive material;

[0011] A piston rod, one end of which is connected to the washing tub, and the other end of which is slidably connected to the accommodating cavity through the mounting opening, wherein at least part of the piston rod is made of magnetic conductive material;

[0012] A coil, wound between the piston rod and the housing, wherein the current in the coil changes according to the detection result of the detection element, and the coil generates a magnetic field when energized;

[0013] The friction ring is sleeved between the piston rod and the housing and is located on a side of the coil close to the piston rod. The friction damping between the friction ring and the piston rod varies with the current in the coil.

[0014] Optionally, the shell includes a cavity wall surrounding the accommodating cavity, the cavity wall is recessed with a mounting groove, and the coil is mounted in the mounting groove.

[0015] Optionally, the friction ring is interference fit between the piston rod and the housing.

[0016] Optionally, the shock absorber further comprises a sealing cover which is detachably mounted on one end of the housing provided with the mounting opening, the sealing cover being penetrated by a sliding hole, the piston rod passing through the sliding hole and being slidably connected in the accommodating cavity,

[0017] Wherein, the inner diameter of the sliding hole is smaller than the diameter of the installation opening.

[0018] The present application also provides a clothes processing device, including:

[0019] Box;

[0020] A washing drum is installed in the box;

[0021] The shock absorbing device as mentioned above is connected between the washing tub and the box body.

[0022] Optionally, a first reinforcement is provided at one end of the box away from the ground toward the washing drum, a first mounting hole is provided on the washing drum relative to the first reinforcement, one end of the suspension spring is hung on the reinforcement, and the other end is hung on the first mounting hole.

[0023] Optionally, a second reinforcement member is provided on a side of the box body close to the ground, and a second mounting hole is provided on a side of the washing tub facing the ground;

[0024] Two ends of the shock absorber are fixedly connected to the second reinforcement member and the second mounting hole respectively.

[0025] In the shock absorbing device provided by the embodiment of the present application, when the washing drum is vibrating, the suspension spring will expand and contract with the vibration of the washing drum, the detection member detects the expansion and contraction state of the suspension spring and transmits the detection result to the shock absorber, and the shock absorber adjusts its own damping force according to the detection result. Since the damping force of the shock absorber changes, the stiffness of the shock absorber with respect to the washing drum changes, thereby absorbing the corresponding vibration of the washing drum. For example, when the vibration of the washing drum is large, the damping force of the shock absorber is increased, and when the vibration of the washing drum is small, the damping force of the shock absorber is reduced, that is, the damping force of the shock absorber is adjusted according to the real-time working condition of the clothing processing equipment to absorb the corresponding vibration of the washing drum, so as to avoid noise or displacement of the clothing processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0027] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0028] Figure 1 A schematic diagram of the installation of the shock absorbing device provided in an embodiment of the present application.

[0029] Figure 2 A schematic diagram of the connection between the shock absorbing device and the washing drum provided in an embodiment of the present application.

[0030] Figure 3 A schematic structural diagram of the shock absorber of the shock absorbing device provided in an embodiment of the present application.

[0031] Figure 4 for Figure 3 Cross-sectional view at AA in the middle.

[0032] Figure 5 A schematic diagram of the structure of a clothing processing device provided in an embodiment of the present application.

[0033] Figure 6 Another structural schematic diagram of the clothing processing device provided in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Suspension spring;

[0036] 2. Inspection parts;

[0037] 3. shock absorber; 31. housing; 311. accommodating chamber; 312. mounting opening; 32. piston rod; 33. coil; 34. friction ring; 35. sealing cover;

[0038] 4. Box body; 41. First reinforcement member; 42. Second reinforcement member;

[0039] 5. Washing drum;

[0040] 6. Motherboard. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0042] The embodiments of the present application provide a shock absorbing device and a clothing processing device to solve the problem that the existing washing machine usually uses a piston shock absorber to support the washing drum, the damping force value of the piston shock absorber is a fixed value, and when the vibration of the washing drum exceeds the shock absorbing range of the piston shock absorber, the washing machine will produce a large vibration, thereby generating noise or displacement, which will be explained in conjunction with the accompanying drawings below.

[0043] The damping device provided in the embodiment of the present application is applied to a clothing processing device, see Figure 1 , Figure 1 This is a schematic diagram of the installation of the shock absorbing device provided in the embodiment of the present application (the door body is not installed on the box body), the clothing processing device includes a box body 4 and a washing drum 5, and the shock absorbing device includes a hanging spring 1 and a shock absorber 3. One end of the hanging spring 1 is connected to the box body 4, and the other end is connected to the side of the washing drum 5 away from the ground. The hanging spring 1 is provided with a detection member 2, and the detection member 2 is used to detect the telescopic state of the hanging spring 1; one end of the shock absorber 3 is connected to the box body 4, and the other end is connected to the side of the washing drum 5 close to the ground. The shock absorber 3 is connected to the detection member 2 for communication, and the shock absorber 3 is used to adjust the damping force according to the detection result of the detection member 2 to absorb the vibration of the washing drum 5.

[0044] In the shock absorbing device provided in the embodiment of the present application, when the washing tub 5 is vibrating, the suspension spring 1 will expand and contract following the vibration of the washing tub 5, the detection member 2 detects the expansion and contraction state of the suspension spring 1 and transmits the detection result to the shock absorber 3, and the shock absorber 3 adjusts its own damping force according to the detection result. Since the damping force of the shock absorber 3 changes, the stiffness of the shock absorber 3 with respect to the washing tub 5 changes, thereby absorbing the corresponding vibration of the washing tub 5. For example, when the vibration of the washing tub 5 is large, the damping force of the shock absorber 3 is increased, and when the vibration of the washing tub 5 is small, the damping force of the shock absorber 3 is reduced, that is, the damping force of the shock absorber 3 is adjusted according to the real-time working condition of the clothing processing device to absorb the corresponding vibration of the washing tub 5, so as to avoid noise or displacement of the clothing processing device.

[0045] Optionally, the shock absorber 3 includes at least one pair, and the at least one pair of shock absorbers 3 are arranged at intervals on the side of the washing tub 5 facing the ground and are staggered along the axial direction of the washing tub 5 .

[0046] By distributing at least one pair of shock absorbers 3 along the axial direction of the washing tub 5, the effective shock absorbing area of ​​the shock absorber 3 in the axial direction of the washing tub 5 is increased, and the absorbing effect of the shock absorber 3 on the vibration of the washing tub 5 is improved. The number of the shock absorbers 3 is not further limited here, and may include one pair, two pairs, or three pairs, etc. Of course, the number of the shock absorbers 3 may also be three, five, etc.

[0047] The distance between one end of at least one pair of shock absorbers 3 close to the washing tub 5 and the central axis of the washing tub 5 is not further limited here and can be the same or different. It can be understood that when the distances are the same, the inclination angles of at least one pair of shock absorbers 3 are the same.

[0048] Optionally, the detection member 2 includes a resistance strain gauge, which is glued to the suspension spring 1, and the resistance value of the resistance strain gauge changes with the expansion and contraction of the suspension spring 1. Among them, the working principle of the resistance strain gauge is based on the strain effect, that is, when the conductor or semiconductor material is mechanically deformed under the action of external force, its resistance value changes accordingly. This phenomenon is called "strain effect". Specifically, when a conductor is stretched by external force within its elastic limit, it will not be broken or permanently deformed but will become narrower and longer. This deformation causes its end resistance to increase. On the contrary, when a conductor is compressed, it will become wider and shorter. This deformation causes its end resistance to decrease. By measuring the resistance of the strain gauge, the strain of the area it covers can be calculated. The sensitive grid of the strain gauge is a group of parallel wires arranged in a zigzag manner by a narrow conductor strip. This arrangement can accumulate small deformations in the baseline direction to form a larger cumulative value of resistance change. The only measurement object of the strain gauge is the deformation of the area it covers.

[0049] That is, when the suspension spring 1 expands and contracts following the vibration of the washing tub 5, since the resistance strain gauge is bonded to the suspension spring 1, the resistance strain gauge will deform following the expansion and contraction at the bonding point between the resistance strain gauge and the suspension spring 1, and then the resistance value of the resistance strain gauge changes. After the shock absorber 3 receives the change in the resistance value of the resistance strain gauge, it adjusts its own damping force accordingly according to the value. For example, when the vibration of the washing tub 5 is large, the expansion and contraction degree of the suspension spring 1 becomes larger accordingly, and then the resistance value of the resistance strain gauge changes greatly. At this time, the shock absorber 3 increases its own damping force accordingly to absorb the larger vibration transmitted from the washing tub 5; when the vibration of the washing tub 5 is small, the expansion and contraction degree of the suspension spring 1 becomes smaller accordingly, and then the resistance value of the resistance strain gauge changes less. At this time, the shock absorber 3 reduces its own damping force accordingly to absorb the smaller vibration transmitted from the washing tub 5. The vibration absorption strength of the washing tub 5 is adaptively adjusted according to the working condition of the washing tub 5.

[0050] Optionally, see Figure 3 and Figure 4 , Figure 3 A schematic diagram of the structure of a shock absorber of the shock absorbing device provided in an embodiment of the present application, Figure 4 for Figure 3 In the cross-sectional view at AA, the shock absorber 3 includes a housing 31, a piston rod 32, a coil 33 and a friction ring 34. One end of the housing 31 is connected to the housing 4, and the other end is provided with a mounting port 312. The housing 31 is provided with a housing chamber 311 connected to the mounting port 312, and the housing 31 is at least partially made of a magnetic conductive material; one end of the piston rod 32 is connected to the washing tub 5, and the other end is slidably connected to the housing chamber 311 through the mounting port 312, and the piston rod 32 is at least partially made of a magnetic conductive material; the coil 33 is wound between the piston rod 32 and the housing 31, and the current in the coil 33 changes according to the detection result of the detection element 2, and the coil 33 generates a magnetic field when it is energized; the friction ring 34 is sleeved between the piston rod 32 and the housing 31, and is located on the side of the coil 33 close to the piston rod 32, and the friction damping between the friction ring 34 and the piston rod 32 changes with the current in the coil 33. Of course, the friction ring 34 is made of a magnetic conductive material. The housing 31 and the piston rod 32 can also be made of a magnetic conductive material throughout.

[0051] When the coil 33 is energized, a magnetic circuit is formed between the housing 31, the friction ring 34 and the piston rod 32, so that the friction coefficient of the friction ring 34 can be changed, and then the friction damping generated between the piston rod 32 and the friction ring 34 when sliding is changed, so that the stiffness of the shock absorber 3 relative to the washing tub 5 changes. When the friction damping is greater, the stiffness of the shock absorber 3 is smaller, and the stronger vibration emitted by the washing tub 5 can be absorbed. When the friction damping is smaller, the stiffness of the shock absorber 3 is greater, and the weaker vibration emitted by the washing tub 5 can be absorbed.

[0052] Of course, in order to simplify the control method for the shock absorber 3, the vibration intensity range of the washing drum 5 during normal washing can be obtained according to experiments, and the standard current size of the coil 33 can be obtained based on the range, that is, when the current in the coil 33 is the standard current, the vibration intensity that can be absorbed by the shock absorber 3 meets the normal vibration intensity of the washing drum 5; only when the vibration intensity of the washing drum 5 exceeds the range, the current intensity in the coil 33 is increased, and then the vibration absorption ability of the shock absorber 3 is increased to absorb the vibration generated by the washing drum 5 under abnormal vibration state, wherein the washing drum 5 may experience abnormal vibration when it is overloaded or has a large eccentricity.

[0053] Optionally, the housing 31 includes a cavity wall surrounding the accommodating cavity 311, and a mounting groove is recessed on the cavity wall, and the coil 33 is installed in the mounting groove. The shape of the mounting groove can be conformally matched with the shape of the coil 33. By providing the mounting groove, an installation space is reserved for the coil 33, and at the same time, the coil 33 is limited to prevent the coil 33 from being displaced due to the sliding of the piston rod 32.

[0054] Optionally, the friction ring 34 is interference fit between the piston rod 32 and the housing 31. By setting the friction ring 34 as an interference fit, the friction contact between the piston rod 32 and the friction ring 34 is ensured, and a magnetic circuit is formed between the housing 31, the friction ring 34 and the piston rod 32, thereby preventing the friction ring 34 and the piston rod 32 from being loosened.

[0055] Optionally, the shock absorber 3 also includes a sealing cover 35, which is detachably mounted on one end of the shell 31 having a mounting port 312, and a sliding hole is provided through the sealing cover 35, and the piston rod 32 is slidably connected in the accommodating cavity 311 through the sliding hole, wherein the inner diameter of the sliding hole is smaller than the diameter of the mounting port 312.

[0056] A sealing cover 35 is provided at one end of the housing 31. At the same time, a sliding hole is penetrated through the sealing cover 35. Since the inner diameter of the sliding hole is smaller than the diameter of the mounting opening 312, the friction ring 34 is sealed to prevent the friction ring 34 from escaping from the accommodating chamber 311. In addition, the sliding hole provides a sliding space for the sliding of the piston rod 32 without affecting the sliding movement of the piston rod 32.

[0057] The present application also provides a clothes processing device, including a housing 4, a washing tub 5 and the above-mentioned shock absorbing device. The washing tub 5 is installed in the housing 4; the shock absorbing device is connected between the washing tub 5 and the housing 4. Figure 5 and Figure 6 , Figure 5 A schematic diagram of the structure of a clothes processing device provided in an embodiment of the present application is shown in FIG. Figure 6This is another structural schematic diagram of a clothing processing device provided in an embodiment of the present application. The model of the clothing processing device is not further limited here. For example, it can be a single-layer drum washing machine or a double-layer drum washing machine.

[0058] Optionally, see Figure 2 , Figure 2 A schematic diagram of the connection between the shock absorbing device and the washing drum provided in the embodiment of the present application, wherein a first reinforcement member 41 is provided at one end of the housing 4 away from the ground and facing the washing drum 5, a first mounting hole is provided on the washing drum 5 relative to the first reinforcement member, one end of the hanging spring 1 is hung with the reinforcement member, and the other end is hung on the first mounting hole. Further, a hanging hole is provided on the first reinforcement member 41, and the hanging spring 1 is hung on the hanging hole. By providing the first reinforcement member 41, the connection strength between the hanging spring 1 and the housing 4 is ensured to prevent breakage. Further, the hanging spring 1 includes a pair, and the pair of hanging springs 1 are relatively arranged on both sides of the housing 4, a pair of first mounting holes are correspondingly provided on the washing drum 5, and a pair of first reinforcement members 41 are correspondingly provided on the housing 4, and a pair of hanging springs 1 are respectively hung with a pair of first reinforcement members 41 and a pair of first mounting holes, and the shapes of the first reinforcement member 41, the first mounting hole and the hanging hole are not further limited here.

[0059] Optionally, a second reinforcement member 42 is provided on the side of the box body 4 close to the ground, and a second mounting hole is provided on the side of the washing tub 5 facing the ground; the two ends of the shock absorber 3 are respectively fixedly connected to the second reinforcement member 42 and the second mounting hole. Further, a through hole is provided on the second reinforcement member 42, and both ends of the shock absorber 3 are also provided with a through hole, and both ends of the shock absorber 3 are respectively fixedly connected to the second reinforcement member 42 and the second mounting hole through a fixing pin.

[0060] Optionally, the clothing processing device further comprises a main board 6, which is respectively connected to the shock absorber 3 and the detection member 2 for communication, that is, the detection member 2 sends the detection result to the main board 6, and the main board 6 controls the adjustment of the damping force of the shock absorber 3 according to the detection result.

[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0063] The shock absorbing device and clothing processing equipment provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A shock absorbing device, applied to a clothes processing device, the clothes processing device comprising a box and a washing tub, characterized in that: The shock absorbing device comprises: A hanging spring, one end of which is connected to the box body, and the other end of which is connected to the side of the washing tub away from the ground, wherein a detection member is provided on the hanging spring, and the detection member is used to detect the extension and contraction state of the hanging spring; A shock absorber, one end of which is connected to the box body, and the other end of which is connected to the side of the washing tub close to the ground. The shock absorber is in communication connection with the detection member, and is used to adjust the damping force according to the detection result of the detection member to absorb the vibration of the washing tub.

2. The shock absorbing device according to claim 1, characterized in that: The shock absorbers include at least one pair, and the at least one pair of shock absorbers are arranged at intervals on the side of the washing tub facing the ground and are staggered along the axial direction of the washing tub.

3. The shock absorbing device according to claim 1, characterized in that: The detection component comprises a resistance strain gauge, the resistance strain gauge is glued to the suspension spring, and the resistance value of the resistance strain gauge changes with the expansion and contraction of the suspension spring.

4. The shock absorbing device according to claim 1, characterized in that: The shock absorber comprises: A shell, one end of which is connected to the box body, and the other end of which is provided with a mounting port, wherein a receiving cavity communicating with the mounting port is provided in the shell, and the shell is at least partially made of a magnetic conductive material; A piston rod, one end of which is connected to the washing tub, and the other end of which is slidably connected to the accommodating cavity through the mounting opening, wherein at least part of the piston rod is made of magnetic conductive material; A coil, wound between the piston rod and the housing, wherein the current in the coil changes according to the detection result of the detection element, and the coil generates a magnetic field when energized; The friction ring is sleeved between the piston rod and the housing and is located on a side of the coil close to the piston rod. The friction damping between the friction ring and the piston rod varies with the current in the coil.

5. The shock absorbing device according to claim 4, characterized in that: The shell comprises a cavity wall surrounding the accommodating cavity, the cavity wall is recessed with a mounting groove, and the coil is mounted in the mounting groove.

6. The shock absorbing device according to claim 4, characterized in that: The friction ring is interference fit between the piston rod and the housing.

7. The shock absorbing device according to claim 4, characterized in that: The shock absorber further comprises a sealing cover which is detachably mounted on one end of the housing provided with the mounting opening, the sealing cover having a sliding hole extending therethrough, the piston rod passing through the sliding hole and slidably connected in the accommodating cavity, Wherein, the inner diameter of the sliding hole is smaller than the diameter of the installation opening.

8. A clothes processing device, characterized in that: include: Box; A washing drum is installed in the box; The shock absorbing device according to any one of claims 1 to 7, connected between the washing tub and the housing.

9. The clothes processing device according to claim 8, characterized in that: The end of the box body away from the ground is provided with a first reinforcement member toward the washing tub, and the washing tub is provided with a first mounting hole relative to the first reinforcement member. One end of the suspension spring is hung with the reinforcement member, and the other end is hung on the first mounting hole.

10. The clothes processing device according to claim 8, characterized in that: A second reinforcement member is provided on a side of the box body close to the ground, and a second mounting hole is provided on a side of the washing tub facing the ground; Two ends of the shock absorber are fixedly connected to the second reinforcement member and the second mounting hole respectively.

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