Variable capacity compressor and electrical products including the variable capacity compressor

Abstract

The invention discloses a variable capacity compressor and an electric appliance product. The compressor comprises a fixed scroll plate, a movable scroll plate which forms an inner cavity and an outer cavity together with the fixed scroll plate, a cover plate which is arranged at the upper part of the fixed scroll plate, a first ring groove which is arranged at an up end of the fixed scroll plate, a first variable capacity hole and a second ring groove which are arranged at a bottom of the first ring groove, and a second variable capacity hole which is arranged at the bottom of the second ring groove; the first ring groove is internally provided with a first piston which can slide up and down, and a space between a sidewall of the first piston and a sidewall of the first groove is airtight; the second ring groove is internally provided with a second piston which can slide up and down, and a space between a sidewall of the second piston and a sidewall of the second groove is airtight; a first elastic component is arranged between the second piston and first piston; and a sliding control mechanism is provided for controlling sliding of the first piston in the first ring groove. The variable capacity structure of the variable capacity compressor is easy to control, and reliability of variable capacitance is good.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a variable capacity compressor and electrical products including the variable capacity compressor. Background technique [0002] With the gradual reduction of non-renewable energy sources, my country has put forward higher requirements for high efficiency and energy saving of electrical appliances. For example, most electrical appliances such as air conditioners and refrigerators use scroll compressors with high energy efficiency. [0003] In the prior art, a scroll compressor mainly includes an airtight casing, an orbiting scroll, a fixed scroll, a crankshaft, a frame, an anti-rotation mechanism, and a motor. The fixed scroll is fixed on the frame, and the movable disk is driven by the crankshaft and restricted by the anti-rotation mechanism, and rotates in a plane with a small radius around the center of the base circle of the fixed scroll. [0004] The profiles of the mov...

AI Technical Summary

Problems solved by technology

Since the auxiliary holes need to be controlled at the same time, the control structure is complicated and the installation space of the compressor is high.

like figure 2 As shown, when the required variable capacity is large, the variable capacity hole 3 and the auxiliary variable capacity hole 4 must be opened at the same time. If the two variable capacity structures are controlled separately, the control system is more complicated. If there is a delay in the opening of the two variable capacity structures, The force of the dynamic and static discs becomes worse, which reduces the reliability of the dynamic and static discs

[0009] Therefore, how to solve the problem of complex and poor reliability of the compressor variable capacity structure control system in the prior art has become an important technical problem to be solved by those skilled in the art

Images