Air conditioner compressor rotor with reduced blade friction

Abstract

The utility model provides a kind of air-conditioner compressor rotor for reducing blade friction, including lower support, cylinder, upper support and muffler installed on rotating shaft, cylinder is equipped with the blade slot and spring hole being communicated, blade slot is equipped with blade, spring hole is equipped with spring;The blade one end with the spring contact, the other end with the outer wall contact of transition ring installed on the rotating shaft;The junction of the blade slot with the spring hole is equipped with first bevel, two first bevels form first zizyphus, and the opening of first zizyphus is towards the spring.The utility model reduces the contact area between blade and blade slot by first zizyphus structure, reduces the friction between them, to reduce friction energy consumption, improve compressor efficiency, make blade more easily rebound at the same time, keep blade and transition ring contact, prevent compressor from producing '' click '' abnormal sound;Through first zizyphus structure, avoid the end of spring and blade slot contact, to improve the service life of spring.

Description

Technical Field

[0001] This utility model relates to the field of compressor rotor technology, specifically to an air conditioning compressor rotor that reduces blade friction. Background Technology

[0002] When the rolling rotor refrigeration compressor is running stably, the blades maintain contact with the outer surface of the rolling rotor under the action of spring force and gas force, forming a basic volume, which plays an important role in separating the high-pressure chamber and the low-pressure chamber.

[0003] The existing cylinder vane slot design has the following shortcomings: the contact area between the vane slot and the vane is large. Under the different pressures of the high-pressure chamber and the low-pressure chamber, the friction between the vane and the vane slot is large, which affects the vane rebound and causes poor contact between the vane and the rolling rotor, producing an abnormal "ticking" sound. At the connection position between the vane slot and the spring slot, under certain harsh operating conditions of the compressor, the spring will rub against the vane slot during operation, resulting in a reduction in the service life of the spring. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an air conditioning compressor rotor that reduces blade friction by optimizing the structure of the blade slots to avoid contact between the blade slots and the springs, and to reduce the friction between the blades and the blade slots.

[0005] An air conditioning compressor rotor for reducing blade friction includes a lower support, a cylinder, an upper support, and a muffler mounted sequentially on a rotating shaft from bottom to top. The cylinder has a blade groove and a spring hole that are connected to each other. The blade groove has blades and the spring hole has springs. One end of the blade contacts the spring, and the other end contacts the outer wall of the transition ring mounted on the rotating shaft; The connection between the blade groove and the spring hole is provided with a first inclined surface, and the two first inclined surfaces form a first figure-eight shape, with the opening of the first figure-eight shape facing the spring.

[0006] Preferably, the included angle between the two first inclined planes is 5° to 40°.

[0007] Preferably, the blade groove has a second inclined surface at the groove opening near one end of the rotating shaft, and the two second inclined surfaces form a second figure-eight shape, with the opening of the second figure-eight shape facing the rotating shaft.

[0008] Preferably, the blade groove has a transversely arranged groove on its groove wall, and the transverse groove is strip-shaped or curved.

[0009] Preferably, the blade groove has a longitudinally arranged groove on its groove wall, and the longitudinal groove is strip-shaped or curved.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By using the first figure-eight structure, the contact area between the blade and the blade slot is reduced, and the friction between them is reduced, thereby reducing frictional energy consumption and improving compressor energy efficiency. At the same time, it makes the blade more likely to rebound, maintains the contact between the blade and the transition ring, and prevents the compressor from producing a "ticking" noise. The first figure-eight structure avoids contact between the spring and the end of the blade groove, thereby improving the service life of the spring. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the rotor of an air conditioning compressor designed to reduce blade friction according to this utility model. Figure 2 for Figure 1 A schematic diagram of the structure after removing the upper support and the soundproof cover; Figure 3 for Figure 2 A schematic diagram of the middle cylinder block.

[0012] Explanation of key component symbols: 11-Shaft; 12-Lower support; 13-Cylinder block; 131-Blade groove; 132-Spring hole; 133-First inclined surface; 134-Second inclined surface; 14-Upper support; 15-Silencer cover; 16-Blade; 17-Spring; 18-Transition ring.

[0013] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0014] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0015] Please see Figures 1 to 3 An embodiment of the present invention provides an air conditioning compressor rotor for reducing blade friction, comprising a lower support 12, a cylinder 13, an upper support 14 and a muffler 15 sequentially mounted on a rotating shaft 11 from bottom to top. The cylinder 13 is provided with a blade groove 131 and a spring hole 132 that are connected to each other. A blade 16 is provided in the blade groove 131 and a spring 17 is provided in the spring hole 132. One end of the blade 16 contacts the spring 17, and the other end contacts the outer wall of the transition ring 18 mounted on the rotating shaft 11; The blade groove 131 and the spring hole 132 are provided with a first inclined surface 133, and the two first inclined surfaces 133 form a first figure-eight shape, with the opening of the first figure-eight shape facing the spring 17.

[0016] It should be noted that in this utility model, the first figure-eight structure reduces the contact area between the blade 16 and the blade groove 17, thereby reducing the friction between them, which in turn reduces frictional energy consumption, improves compressor energy efficiency, and makes it easier for the refrigeration oil to form and maintain a complete oil film to isolate the metal surface, further reducing friction between parts and making the compressor run more smoothly. Furthermore, it makes the blade 16 more likely to rebound, maintaining contact between the blade 16 and the transition ring 18, preventing the compressor from producing a "ticking" noise. The first figure-eight structure also prevents the spring 17 from contacting the end of the blade groove 131, thereby improving the service life of the spring 17.

[0017] In a preferred embodiment of this utility model, the included angle between the two first inclined planes 133 is 5° to 40°.

[0018] Please see Figure 2 and Figure 3 In a preferred embodiment of this utility model, a second inclined surface 134 is provided at the groove opening of the blade groove 131 near one end of the rotating shaft 11. The two second inclined surfaces 134 form a second figure-eight shape, with the opening of the second figure-eight shape facing the rotating shaft 11. Through the second figure-eight structure, the contact area between the blade 16 and the blade groove 131 is reduced, and the friction between them is reduced, thereby reducing frictional energy consumption and improving the compressor's energy efficiency.

[0019] In a preferred embodiment of this invention, the blade groove 131 has a transversely arranged groove on its groove wall, which is strip-shaped or curved. The transverse groove reduces the contact area between the blade 16 and the blade groove 131, decreasing the friction between them, thereby reducing frictional energy consumption and improving compressor efficiency.

[0020] In a preferred embodiment of this invention, the blade groove 131 has a longitudinally arranged groove on its groove wall, which is either strip-shaped or curved. The longitudinal groove reduces the contact area between the blade 16 and the blade groove 131, thereby reducing frictional energy consumption and improving compressor efficiency.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air conditioning compressor rotor for reducing blade friction, characterized in that, The device includes a lower support, a cylinder, an upper support, and a muffler, which are installed sequentially from bottom to top on the rotating shaft. The cylinder has a connected blade groove and a spring hole. The blade groove contains a blade, and the spring hole contains a spring. One end of the blade contacts the spring, and the other end contacts the outer wall of the transition ring mounted on the rotating shaft; The connection between the blade groove and the spring hole is provided with a first inclined surface, and the two first inclined surfaces form a first figure-eight shape, with the opening of the first figure-eight shape facing the spring.

2. The air conditioning compressor rotor for reducing blade friction according to claim 1, characterized in that, The included angle between the two first inclined planes is 5° to 40°.

3. The air conditioning compressor rotor for reducing blade friction according to claim 1, characterized in that, The blade groove has a second inclined surface at the groove opening near one end of the rotating shaft. The two second inclined surfaces form a second figure-eight shape, and the opening of the second figure-eight shape faces the rotating shaft.

4. The air conditioning compressor rotor for reducing blade friction according to any one of claims 1 to 3, characterized in that, The blade groove has transverse grooves arranged horizontally on its groove wall. The transverse grooves are strip-shaped or curved.

5. The air conditioning compressor rotor for reducing blade friction according to any one of claims 1 to 3, characterized in that, The blade groove has longitudinally arranged grooves on its groove wall, and the longitudinal grooves are strip-shaped or curved.

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