Scroll compressor having a floating scroll plate

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By setting a receiving groove and adjustment mechanism on the moving scroll plate, and using a mass block and elastic element to adjust the center of mass, the problem of rotation torque fluctuation caused by profile offset is solved, and the noise and vibration of the scroll compressor are reduced.

CN224515394UActive Publication Date: 2026-07-17GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date: 2025-08-11
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The offset design of the moving scroll plate results in large fluctuations in the rotation torque, which increases the vibration and noise of the scroll compressor. Furthermore, the amplitude of the rotation torque added by the offset of the center of mass is unstable with the rotation frequency, affecting the overall offset effect of the rotation torque.

Method used

A receiving groove is constructed on the substrate of the moving scroll disk, and an adjustment mechanism is set therein, including a mass block and an elastic element. Centrifugal force and elastic force are used to make the mass block slide in the receiving groove to adjust the center of mass and counteract the rotation torque when the profile is offset.

Benefits of technology

By adjusting the center of mass, the rotation torque was stabilized, reducing the fluctuation of the overall rotation torque and lowering the noise and vibration of the scroll compressor.

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Abstract

The utility model provides a kind of orbiting scroll and scroll compressor with it, the orbiting scroll in it includes base plate and adjusting mechanism, base plate is constructed with containing groove along its radial direction, adjusting mechanism is arranged in containing groove, adjusting mechanism includes mass block and elastic member, when orbiting scroll is in rotating state, mass block can slide along the extension direction of containing groove under the cooperation of centrifugal force and the elastic force of elastic member to adjust the centroid of orbiting scroll.According to the utility model, when orbiting scroll is in rotating state, mass block can slide along the extension direction of containing groove under the cooperation of centrifugal force and the elastic force of elastic member to adjust the centroid of orbiting scroll, so that the centroid offset additional rotation torque is more stable under certain rotation frequency, so as to effectively offset additional rotation torque when profile line is offset, reduce the fluctuation of overall rotation torque, and further reduce the noise and vibration of variable frequency scroll compressor.

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Claims

1. An orbiting scroll, characterized by, The device includes a base plate (1) and an adjustment mechanism. The base plate (1) has a receiving groove (4) constructed along its radial direction. The adjustment mechanism is disposed in the receiving groove (4). The adjustment mechanism includes a mass block (2) and an elastic element (3). When the moving scroll is in a rotating state, the mass block (2) can slide along the extension direction of the receiving groove (4) under the combined action of centrifugal force and the elastic force of the elastic element (3) to adjust the center of mass of the moving scroll.

2. The orbiting scroll of claim 1 wherein, The adjustment mechanism also includes a connecting component, through which the mass block (2) is connected to the elastic element (3).

3. The orbiting scroll of claim 2 wherein, The adjustment mechanism further includes a cylinder (5) which is fixed in the receiving groove (4). The cylinder (5) includes a bottom wall (51). The connecting member passes through the bottom wall (51) from inside the cylinder (5) and is connected to the mass block (2). The elastic member (3) is located inside the cylinder (5) and is clamped between the bottom wall (51) and the end of the connecting member away from the bottom wall (51). The connecting member can slide along the extension direction of the cylinder (5).

4. The orbiting scroll of claim 3 wherein, The elastic element (3) is sleeved on the connecting component.

5. The orbiting scroll of claim 3 wherein, The connecting component is a first bolt (6), and a through hole (7) is constructed on the bottom wall (51) through the bottom wall (51). A first threaded hole (8) is constructed on the mass block (2). The position of the through hole (7) corresponds to that of the first threaded hole (8). After the first bolt (6) passes through the through hole (7), it is threaded into the first threaded hole (8).

6. The orbiting scroll of claim 3 wherein, The substrate (1) has a second threaded hole (9) which communicates with the receiving groove (4). The cylinder (5) also includes a peripheral sidewall (52) on which a third threaded hole (10) is formed. The third threaded hole (10) corresponds to the position of the second threaded hole (9). The first screw (11) is threaded into the second threaded hole (9) and the third threaded hole (10).

7. The orbiting scroll of Claim 1 wherein, The adjustment mechanism also includes a connecting component, through which the mass block (2) is connected to the elastic element (3).

8. The orbiting scroll of Claim 7 wherein, The connecting assembly includes a second bolt (12) and a nut (13), the first end of the elastic element (3) is connected to the nut (13), the mass block (2) is provided with a fourth threaded hole (14), the fourth threaded hole (14) penetrates the mass block (2) radially along the substrate (1), and the second bolt (12) is threadedly connected to the fourth threaded hole (14) and the nut (13).

9. The moving scroll disk according to claim 7, characterized in that, The adjustment mechanism also includes a fixing plate (15) and a second screw (17). The second end of the elastic element (3) is connected to the fixing plate (15). A fifth threaded hole is formed on the fixing plate (15). A sixth threaded hole (16) is formed on the bottom wall of the receiving groove (4). The sixth threaded hole (16) corresponds to the position of the fifth threaded hole. The second screw (17) is threadedly connected in the fifth threaded hole and the sixth threaded hole (16).

10. A scroll compressor characterized by, Includes the dynamic vortex disk as described in any one of claims 1 to 9.