CN214304363U

CN214304363U - Vibration and noise reduction structure for eccentric wheel of scroll compressor

Info

Publication number: CN214304363U
Application number: CN202022438731.8U
Authority: CN
Inventors: 黄小林
Original assignee: Shanghai Benling Scroll Compressor Co ltd
Current assignee: Shanghai Benling Scroll Compressor Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-09-28
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a vibration damping and noise reduction structure for an eccentric wheel of a scroll compressor, which comprises a shell, wherein a movable scroll plate and a fixed scroll plate which are matched with each other are arranged in the shell, the movable scroll plate is fixedly connected with the eccentric wheel, the eccentric wheel is connected with a crankshaft through a crankshaft pin, and the crankshaft is connected with a rotor used for power driving; the crank pin is characterized in that an elastic element is sleeved at the joint of the crank pin and the crank shaft.

Description

Vibration and noise reduction structure for eccentric wheel of scroll compressor

Technical Field

The utility model relates to a structure of making an uproar falls in scroll compressor eccentric wheel damping, especially a structure that is used for scroll compressor's an eccentric wheel damping to fall and makes an uproar, promotes life belongs to the eccentric wheel damping and falls the technical field of making an uproar.

Background

With the development of electric automobiles, people have higher requirements on vibration, noise, service life and the like of a compressor; because the inertia force generated by the dynamic unbalance is generated between the rotor crank pin and the eccentric wheel which are rigidly connected in the compressor, the abnormal sound caused by the vibration can be generated when the compressor is started.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is how to reduce the vibration that produces between compressor start-up initial stage rotor bent axle round pin and eccentric wheel, promote compressor life to and reduce the noise that bent axle round pin and eccentric wheel produced.

In order to solve the technical problem, the technical scheme of the utility model is to provide an eccentric wheel vibration damping and noise reduction structure, including the casing, be equipped with supporting movable vortex dish and static vortex dish in the casing, movable vortex dish 6 fixed connection eccentric wheel, the eccentric wheel passes through the bent axle of crankpin connection, the bent axle is connected and is used for the rotor of power drive; the crank pin is characterized in that an elastic element is sleeved at the joint of the crank pin and the crank shaft.

The elastic element is an elastic rubber ring.

The elastic member is applied between the crank pin and the crankshaft.

The structure of the crank pin and the eccentric wheel is that the eccentric wheel is embedded on the crank pin connected with the crank shaft, and the eccentric wheel is matched with the crank pin to rotate. In the initial stage of the rotation, an inertia force is generated due to a dynamic unbalance between the crank pin and the eccentric wheel which are rigidly connected, so that vibration is generated when the compressor is started to cause abnormal sound.

The utility model discloses according to the research to electric scroll compressor vibration and noise characteristic, installed elastic element between its bent axle round pin and the eccentric wheel to reach the buffering effect, thereby reduced compressor running noise, promoted the travelling comfort of people's feeling. Because the elastic material has simple structure and process and less material consumption, the noise is improved under the condition of increasing the cost, the product quality is improved, and the product competitiveness is improved.

The utility model discloses the device has the little effect of small in noise vibration, and the advantage is life, noise reduction and the micro-cost that promote the compressor.

Drawings

FIG. 1 is a schematic view of an electric scroll compressor;

FIG. 2 is a schematic view of an eccentric wheel;

fig. 3 is a schematic view of a crankshaft structure.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Examples

As shown in fig. 1, the overall schematic view of the electric scroll compressor is composed of a housing 1, a crankshaft 2, an eccentric wheel 3, a bushing 4, a frame 5, an orbiting scroll 6, a fixed scroll 7, a gasket 8, a screw 9, and a high pressure cover 10. The eccentric wheel 3, the crankshaft 2, the rotor 21 and the frame 5 form a rotor set together, and the rotor set is electrified and rotated in the shell 1 to form a power assembly for providing power for the normal operation of the compressor; utilizing a rotor to drive: the relative revolution motion of the movable scroll 6 and the fixed scroll 7 forms continuous change of closed volume to realize the purpose of compressing gas, the two movable scrolls 6 and the fixed scrolls 7 with the dual-function equation type lines are oppositely meshed with each other in a staggered way of 180 degrees and do planar motion with small radius around the fixed scrolls 7, so that the space is continuously compressed, and normal refrigerant compression is performed to finish the refrigeration cycle.

The crankshaft 2 drives the eccentric wheel 3, and the movable scroll 6 is driven by the eccentric wheel 3 to realize the translation relative to the fixed scroll 7 under the joint constraint of the crank pin 17.

As shown in fig. 2, the eccentric 3 is constructed in a schematic view, and consists of an eccentric blank 13 and a bush 12, which can also be made in one piece, wherein a direction crankshaft 17 is arranged along the insertion direction eccentric through hole 14 (the direction is shown in fig. 2) in order to achieve a better cooperation.

As shown in fig. 3, the crank assembly, which is composed of the crank shaft 22 and the crank pin 17, may be integrated to provide better force transmission.

In the specific embodiment, the elastic element 19 is added between the crankshaft 22 and the crankshaft pin 17 to play a role of buffering and damping, so that the vibration damping is stable and small in stress, the noise can be effectively reduced, the service life can be prolonged, the method is low in cost, the noise of the compressor can be effectively reduced, and the product competitiveness can be improved.

Claims

1. A vibration and noise reduction structure for an eccentric wheel of a scroll compressor comprises a shell (1), wherein a movable scroll (6) and a fixed scroll (7) which are matched with each other are arranged in the shell (1), the movable scroll (6) is fixedly connected with the eccentric wheel (3), the eccentric wheel (3) is connected with a crankshaft (22) through a crankshaft pin (17), and the crankshaft (22) is connected with a rotor (21) for power driving; the crankshaft pin is characterized in that an elastic element is sleeved at the joint of the crankshaft pin (17) and the crankshaft (22).

2. The eccentric vibration and noise reduction structure of the scroll compressor as claimed in claim 1, wherein the elastic element is an elastic rubber ring.