CN-121992636-A - Foot supporting structure and clothes treating apparatus

CN121992636ACN 121992636 ACN121992636 ACN 121992636ACN-121992636-A

Abstract

The embodiment of the application relates to a foot supporting structure and clothes treatment equipment, wherein the foot supporting structure comprises a positive stiffness element and a negative stiffness element, the positive stiffness element is used for being deformed under the action of external force to provide positive stiffness, the negative stiffness element is used for being deformed under the action of external force in the direction opposite to the deformation direction of the positive stiffness element to generate negative stiffness for balancing the positive stiffness, so that the whole foot supporting structure can form a quasi-zero stiffness structure, namely the foot supporting structure can have a good vibration isolation effect, and the heat pump system is not easy to resonate, so that the heat pump system has long service life. Meanwhile, at least one of the positive stiffness element and the negative stiffness element is arranged to be a metal piece or an alloy piece, so that the foot support structure has higher structural strength, and the bearing capacity of the whole foot support structure can be effectively improved. In addition, the weight-reducing structure arranged on the negative stiffness element can effectively realize light-weight design.

Inventors

CHENG SITAO
ZHOU SHENGLI
LI KUN
WANG PAN
WU JIANG
YU GUANGQIANG

Assignees

无锡美芝电器有限公司

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (13)

1. A foot support structure comprising a positive stiffness element and a negative stiffness element; the positive stiffness element is used for being connected with a compressor of the heat pump system, and the negative stiffness element is connected to one side of the positive stiffness element; The positive stiffness element is used for deforming under the action of external force and providing positive stiffness, and the negative stiffness element is used for deforming under the action of external force along the direction opposite to the deformation direction of the positive stiffness element and providing negative stiffness for balancing the positive stiffness; The negative stiffness element is provided with a weight-reducing structure, and at least one of the positive stiffness element and the negative stiffness element is a metal piece or an alloy piece.
2. Foot supporting structure according to claim 1, characterized in that the negative stiffness element comprises a connecting body and a deformation body, the connecting body being connected with the positive stiffness element, the weight-reducing structure being arranged on the deformation body; Along the direction from the positive stiffness element to the negative stiffness element, the deformation main body is of a conical structure with gradually increased inner diameter, and the ratio of the cone height to the wall thickness of the conical structure is greater than 22.
3. A foot supporting structure according to claim 2, wherein the deformation body comprises a plurality of deformation blades arranged at intervals along the circumference of the connection body, the gaps between adjacent two deformation blades forming the weight-reducing structure.
4. A foot supporting structure according to claim 3, wherein the deformed blade increases in size gradually in the circumferential direction of the connecting body in the direction from the inner edge to the outer edge of the deformed blade; and/or one side of the deformation blade, which is far away from the connecting body, is provided with an annular connecting piece.
5. A foot supporting structure according to claim 2, wherein the connecting body comprises a cylindrical body and a sheet-like body connected to the outer edge of the cylindrical body; The cylindrical body is connected with the positive stiffness element, and the sheet-shaped body is connected with the inner edge of the deformation main body and is supported on one side, close to the negative stiffness element, of the positive stiffness element.
6. The foot supporting structure according to claim 1, wherein at least two first flanges are formed on the outer wall of the positive stiffness element, the at least two first flanges are arranged at intervals along the direction from the positive stiffness element to the negative stiffness element, and a clamping groove which is matched with a clamping part on the body of the compressor in a clamping way is formed between any two adjacent first flanges.
7. The foot support structure of claim 6, wherein said positive stiffness element is a rubber pad; The clamping groove is an annular groove extending along the circumferential direction of the positive stiffness element.
8. Foot supporting structure according to any one of claims 1-7, further comprising a seat on the side of the negative stiffness element remote from the positive stiffness element, and having a cavity opening towards the negative stiffness element, the negative stiffness element being snapped into the cavity.
9. Foot supporting structure according to claim 8, characterized in that a step structure is formed in the cavity, the side of the step structure facing the negative stiffness element forming a first supporting surface, the negative stiffness element being laid on the first supporting surface.
10. The foot support structure of claim 9, wherein the stand comprises a first support cylinder and a second support cylinder connected to a side of the first support cylinder remote from the negative stiffness element, the first support cylinder having an inner diameter greater than an inner diameter of the second support cylinder, a junction of the first support cylinder and the second support cylinder forming the step structure.
11. The foot support structure of claim 8, wherein said foot support structure further comprises a resilient bumper; The elastic buffer is positioned in the cavity and on one side of the negative stiffness element away from the positive stiffness element, and one side of the elastic buffer, which faces towards the negative stiffness element, forms a second supporting surface for supporting the negative stiffness element.
12. The foot supporting structure according to claim 11, wherein a sleeving part which is matched with the elastic buffer member in a sleeving manner is arranged on the support, a second flange is arranged on the outer edge of the elastic buffer member, and a containing groove matched with the second flange is formed by jointly encircling the outer wall of the sleeving part and the inner wall of the support.
13. A laundry treatment apparatus comprising a heat pump system comprising a compressor and a foot support structure according to any one of claims 1 to 12 mounted below the body of the compressor.

Description

Foot supporting structure and clothes treating apparatus Technical Field The embodiment of the application relates to the technical field of household appliances, in particular to a foot supporting structure and clothes treatment equipment. Background The clothes processing equipment, such as a heat pump washing and drying integrated machine, is a multifunctional household electrical appliance integrating washing and drying functions. In general, the drum of the heat pump washing and drying integrated machine can transmit vibration to the heat pump system through the foot supporting structure connected with the drum during dehydration, and the size of the vibration received by the heat pump system can directly influence the service life of the heat pump system. In order to reduce vibration of the heat pump system, the conventional footing supporting structure generally adopts a rubber pad with smaller rigidity, so that a certain vibration reduction and vibration isolation effect can be achieved, and then the heat pump system is not easy to resonate, so that the service life of the heat pump system is prolonged. However, the less stiff rubber pad has lower structural strength, resulting in poorer load carrying capacity. Disclosure of Invention To solve or at least partially solve the above technical problems, embodiments of the present application provide a foot supporting structure and a laundry treating apparatus. In a first aspect, embodiments of the present application provide a foot support structure comprising a positive stiffness element and a negative stiffness element; the positive stiffness element is used for being connected with a heat pump system, and the negative stiffness element is connected to one side of the positive stiffness element; The positive stiffness element is used for deforming under the action of external force and providing positive stiffness, the negative stiffness element is used for deforming along the direction opposite to the deformation direction of the positive stiffness element under the action of external force and providing negative stiffness for balancing the positive stiffness, the negative stiffness element is provided with a weight-reducing structure, and at least one of the positive stiffness element and the negative stiffness element is a metal piece or an alloy piece. In some embodiments, the negative stiffness element comprises a connecting body and a deforming body connected to a side of the connecting body remote from the positive stiffness element, the connecting body being connected to the positive stiffness element, the weight-reducing structure being provided on the deforming body; The deformation body is in a conical structure with gradually increased inner diameter along the direction from the positive stiffness element to the negative stiffness element, and the ratio of the cone height to the wall thickness of the conical structure is larger than In some embodiments, the deformation body includes a plurality of deformation blades spaced apart along a circumference of the connection body, and a gap between two adjacent deformation blades forms the weight-reducing structure. In some embodiments, the weight-reducing structure is an arcuate structure extending along a circumference of the connecting body; And/or, the cross-sectional dimensions of all of the deformed blades are uniform or different; And/or, in a direction from an inner edge to an outer edge of the deformed blade, a dimension of the deformed blade in a circumferential direction along the connecting body is gradually increased; and/or one side of the deformation blade, which is far away from the connecting body, is provided with an annular connecting piece. In some embodiments, the connecting body comprises a cylindrical body and a sheet body connected to the outer edge of the cylindrical body, wherein the cylindrical body is connected with the positive stiffness element, and the sheet body is connected with the inner edge of the deformation body and is supported on one side of the positive stiffness element, which is close to the negative stiffness element. In some embodiments, the positive stiffness element is provided with a through hole, and at least part of the cylindrical body is sleeved in the through hole; and/or the sheet-shaped body is attached to the positive stiffness element. In some embodiments, the positive stiffness element is a rubber pad. In some embodiments, at least two first flanges are formed on the outer wall of the positive stiffness element, the at least two first flanges are arranged at intervals along the direction from the positive stiffness element to the negative stiffness element, and a clamping groove matched with the heat pump system in a clamping way is formed between any two adjacent first flanges. In some embodiments, the snap-fit groove is an annular groove extending circumferentially of the positive stiffness element. In some embodiments, the foot support