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CN-121992625-A - Vibration damping device and clothes treatment equipment

CN121992625ACN 121992625 ACN121992625 ACN 121992625ACN-121992625-A

Abstract

The application belongs to the technical field of clothes treatment, and particularly relates to a vibration damper and clothes treatment equipment, wherein the vibration damper comprises a first moving part, a second moving part and a damping component, the first moving part and the second moving part are rotatably connected, the damping component is arranged at the rotary connection position of the first moving part and the second moving part, the damping component comprises a lining part and a damping part, the lining part is positioned between the damping part and the first moving part, the first moving part and the second moving part relatively rotate in a first angle, the first angle comprises a first damping angle and a second damping angle, and the damping force generated by the damping component in the first damping angle is smaller than that generated by the damping component in the second damping angle. The application can reduce the possibility of transmitting the vibration of the cylinder assembly to the box body during high-speed operation, thereby reducing the noise of the whole machine.

Inventors

  • XIONG LINING
  • SHI YACHENG
  • JIANG YUANHUI
  • WANG JIA

Assignees

  • 无锡小天鹅电器有限公司

Dates

Publication Date
20260508
Application Date
20250313
Priority Date
20241107

Claims (16)

  1. 1. A vibration damping device is applied to a clothes treatment device, the clothes treatment device comprises a box body and a cylinder assembly arranged in the box body, and is characterized in that, The damping device comprises a first moving part, a second moving part and a damping assembly, wherein the first moving part and the second moving part are rotatably connected, the damping assembly is arranged at the rotary connection part of the first moving part and the second moving part, the damping assembly comprises a lining part and a damping part, the lining part is positioned between the damping part and the first moving part, the first moving part and the second moving part relatively rotate in a first angle, the first angle comprises a first damping angle and a second damping angle, and the damping force generated by the damping assembly in the first damping angle is smaller than that generated by the damping assembly in the second damping angle.
  2. 2. The vibration damping device of claim 1, wherein within the first damping angle, the bushing rotates relative to the first moving member, the damping member is stationary relative to both the bushing and the second moving member, and the damping assembly generates a damping force of substantially 0 in the first damping angle.
  3. 3. The vibration damping device according to claim 1, characterized in that in the second damping angle the lining element is stationary with respect to the first moving element, the damping element being rotated with respect to the second moving element and/or the lining element to generate a damping force.
  4. 4. A vibration damping device according to any one of claims 1 to 3, wherein the first moving member comprises a first body portion having a receiving cavity in which the damping assembly is disposed, and the second moving member comprises a second body portion provided with a boss pivotally connected to the damping assembly.
  5. 5. The vibration damper according to claim 4, wherein the damper is an annular structural member, the liner is fitted around an outer peripheral side of the damper, and the liner is located between the damper and the housing chamber, and the damper is stationary with respect to the boss when the liner rotates with respect to the housing chamber in the first damping angle, and the boss moves with respect to the damper to generate the damping force in the second damping angle.
  6. 6. The vibration damping device according to claim 5, wherein either one of an inner wall of the accommodating chamber and an outer wall of the lining is provided with a limit groove, and the other one of the inner wall of the accommodating chamber and the outer wall of the lining is provided with a limit protrusion accommodated in the limit groove, and the limit protrusion is rotatable in the limit groove by a second angle.
  7. 7. The vibration damping device according to claim 6, wherein in the first damping angle, the limit projection rotates in the limit groove with a space formed between the limit projection and both side walls of the limit groove in the circumferential direction, respectively.
  8. 8. The vibration damping device according to claim 6, wherein in the second damping angle, a side wall of the limit projection abuts against any one of side walls of the limit groove in a circumferential direction, so that the boss can continue to rotate with respect to the damper to generate a damping force.
  9. 9. The vibration damper according to claim 6, wherein the inner wall of the accommodating chamber is provided with the limit groove, the outer wall of the lining member is provided with the limit projection engaged with the limit groove, and the second angle by which the limit projection can rotate in the limit groove is 20 ° to 30 °.
  10. 10. The vibration damper according to claim 9, wherein the number of the limit grooves and the number of the limit protrusions are plural, the plurality of limit grooves are arranged at intervals along the circumferential direction of the accommodating cavity, and the plurality of limit protrusions are arranged in one-to-one correspondence with the plurality of limit grooves.
  11. 11. The vibration damping device according to claim 10, wherein the damping member is provided with a notch in a circumferential direction, and the inner wall of the lining member is provided with a stopper rib, and the stopper rib is engaged with the notch.
  12. 12. The vibration damper according to claim 4, further comprising a boom provided on the case and/or the cartridge assembly, the first moving member further comprising a first connecting portion connected with the first main body portion, the second moving member further comprising a second connecting portion connected with the second main body portion, any one of the first connecting portion and the second connecting portion having a through hole, the boom being for penetrating the through hole to connect the vibration damper to the case and/or the cartridge assembly.
  13. 13. The vibration damping device according to claim 12, wherein the first connecting portion has a through hole and a guide passage communicating with the through hole, and the first connecting portion is fitted around the outer peripheral side of the boom through the through hole.
  14. 14. The vibration damping device according to claim 13, wherein the first connecting portion includes an inner peripheral structure and an outer peripheral structure, the inner peripheral structure forming the through hole, the outer peripheral structure being provided at an interval on an outer peripheral side of the inner peripheral structure, and a through groove being formed between the inner peripheral structure and the outer peripheral structure, and a reinforcing rib being connected between the inner peripheral structure and the outer peripheral structure.
  15. 15. The vibration damping device according to claim 14, wherein the through hole is provided with an opening in a circumferential direction, the guide passage is provided with the opening extending in a direction away from the through hole, the guide passage includes a straight line section and a bending section which are provided in order, the straight line section is formed by the opening extending in a direction away from the through hole, a protruding portion is formed on one side of a distal end of the straight line section, a bending portion formed by bending around the protruding portion is formed on the other side of the distal end of the straight line section, and the bending section is formed between the bending portion and the protruding portion.
  16. 16. A laundry treatment apparatus, comprising: A case; a cylinder assembly disposed in the case, and A vibration damping device as claimed in any one of claims 1 to 15 connected between the tank and the cartridge assembly.

Description

Vibration damping device and clothes treatment equipment PRIORITY INFORMATION The present application claims priority from chinese patent application 202411586635.4 entitled "vibration damping device and laundry treatment apparatus" filed on 11/07 of 2024, the entire contents of which are incorporated herein by reference. Technical Field The present application relates to the field of laundry treatment technology, and more particularly, to a vibration damping device and a laundry treatment apparatus. Background Currently, a common laundry treatment apparatus, such as a pulsator washing machine, generally includes a cabinet and a drum assembly provided in the cabinet, the drum assembly including an outer drum and an inner drum rotatably provided in the outer drum, the outer drum being suspended inside the cabinet by a vibration damping device composed of a plurality of suspension rods. During washing and dewatering, the inner cylinder rotates relatively to the outer cylinder to make the clothes and the washing water act, so as to clean the clothes or dewater, and the vibration in the vertical direction is buffered by the suspender. However, due to the non-uniformity of the load, the drum assembly can swing greatly under the action of the eccentric force, and particularly in the low-speed dehydration stage, the displacement amount of the drum assembly is maximum, and the drum assembly is easy to strike the box body. Therefore, in the related art, a vibration damper is added between the suspender and the outer cylinder, and can absorb and release a part of vibration energy, so that the maximum vibration displacement of the cylinder assembly during low-speed operation is reduced, and the problem that the cylinder assembly impacts the box body is avoided. However, when the cylinder assembly runs at a high speed, the vibration damper can transmit the vibration of the cylinder assembly to the box body, so that the vibration of the box body is increased, and the noise of the whole machine is increased. Disclosure of Invention The application aims to provide a vibration damper and a clothes treatment device, which can reduce the possibility of transmitting vibration of a cylinder assembly to a box body during high-speed operation, thereby reducing the noise of the whole machine. A first aspect of the present application provides a vibration damping device for use in a laundry treatment apparatus comprising a cabinet and a cartridge assembly disposed within the cabinet, the vibration damping device comprising a first moving member, a second moving member and a damping assembly rotatably coupled to the first moving member and the second moving member, the damping assembly disposed at a rotational coupling of the first moving member and the second moving member, the damping assembly comprising a liner and a damping member, the liner being located between the damping member and the first moving member or the liner being located between the damping member and the second moving member, the first moving member and the second moving member being relatively rotatable within a first angle, the first angle comprising a first damping angle and a second damping angle, the damping assembly producing a damping force in the first damping angle that is less than a damping force produced in the second damping angle. The damping device comprises a first moving part, a second moving part and a damping component, wherein the first moving part, the second moving part and the damping component are connected between a box body and a barrel component, the first moving part and the second moving part are rotatably connected, the damping component is arranged at the rotary connection position of the first moving part and the second moving part, the damping component comprises a lining part and a damping part, the lining part is positioned between the damping part and the first moving part, the first moving part and the second moving part relatively rotate in a first angle, the first angle comprises a first damping angle and a second damping angle, and the damping force generated by the damping component in the first damping angle is smaller than the damping force generated by the damping component in the second damping angle. Therefore, when the cylinder assembly runs at a high speed, the vibration amplitude of the cylinder assembly is not larger generally, so that the relative rotation angle of the damping assembly and the first moving part is smaller, the damping force is smaller relatively, the cylinder assembly can be prevented from transmitting vibration to the box body, the possibility that the vibration of the cylinder assembly is transmitted to the box body during the high-speed running is reduced, and the noise of the whole machine is further reduced. In addition, the vibration damping device according to the present application may have the following additional technical features: in some embodiments of the application, the liner ro