Rotor compressor pump body assembly, rotor compressor and air conditioning equipment

Abstract

The embodiment of the invention provides a rotor compressor pump body assembly, a rotor compressor and air conditioning equipment, the rotor compressor pump body assembly comprises an air cylinder, the inner wall surface of the air cylinder is arc-shaped, and a plurality of grooves are formed in the inner wall surface of the air cylinder in the circumferential direction; the outer wall face of the roller is in an arc shape, the roller is arranged in the air cylinder, and the outer wall face of the roller is connected with the inner wall face of the air cylinder; the sliding piece is located between the roller and the air cylinder, the head face of the sliding piece is in an arc shape, the head face of the sliding piece abuts against the roller, and the sliding piece and the roller are used for dividing the air cylinder into at least two cavities; the head face of the sliding piece, the inner wall face of the air cylinder and the arc of the outer wall face of the roller are matched with one another. According to the embodiment of the invention, the abrasion of the compressor pump body and the noise can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compression pump, in particular to a rotor compressor pump body assembly, a rotor compressor and an air conditioning equipment. BACKGROUND

[0002] In the compression process of the rotor compressor, the refrigerant is compressed to a high-temperature and high-pressure state in the cylinder, and a large amount of heat is generated in the compression process of the gas. Due to the compact structure, the heat is difficult to be effectively dissipated, resulting in the temperature rise in the cylinder. Especially when starting at low frequency, the interface between the roller and the cylinder does not form a dynamic pressure oil film, and is in a micro-convex body contact state. Influenced by the friction force, the pump body will locally produce temperature rise and micro-vibration. At the same time, in the compression process of the compressor pump body, the roller will be subjected to the gas force of the gas in the working chamber, and the gas force will be transmitted to the crankshaft, causing the deformation of the crankshaft, resulting in the problems of serious wear and large noise of the compressor body. SUMMARY

[0003] In view of the above problems, the present application is proposed to provide a rotor compressor pump body assembly, a rotor compressor and an air conditioning equipment which can overcome the above problems or at least partially solve the above problems.

[0004] In order to solve the above problems, in the first aspect of the present application, the present application discloses a rotor compressor pump body assembly, comprising:

[0005] A cylinder, the inner wall surface of which is arc-shaped, and a plurality of grooves are arranged on the inner wall surface of the cylinder in the circumferential direction;

[0006] A roller, the outer wall surface of which is arc-shaped, arranged in the interior of the cylinder, and the outer wall surface of the roller is in contact with the inner wall surface of the cylinder;

[0007] A slide plate located between the roller and the cylinder, the head surface of the slide plate is arc-shaped, the head surface of the slide plate is in contact with the roller, and the slide plate and the roller are used to divide the cylinder into at least two chambers; the arc-shaped surfaces of the head surface of the slide plate, the inner wall surface of the cylinder and the outer wall surface of the roller are matched with each other.

[0008] Optionally, the grooves are uniformly distributed in the circumferential direction of the inner wall surface of the cylinder.

[0009] Optionally, the grooves are V-shaped grooves or straight grooves or inclined grooves.

[0010] Optionally, each groove comprises:

[0011] A plurality of sub-grooves with the same shape, which are distributed at equal intervals.

[0012] Optionally, the number of the grooves is even.

[0013] Optionally, the outer wall surface of the roller has a single circular arc shape.

[0014] Optionally, the outer wall surface of the roller has a wavy arc shape.

[0015] In a second aspect, embodiments of the present invention disclose a rotary compressor, comprising: a motor, a distributor, a housing, and a rotary compressor pump body assembly as described above.

[0016] The motor is connected to the rotor compressor pump body assembly and is used to drive the rotor compressor pump body assembly to operate;

[0017] The output end of the distributor is connected to the input end of the rotary compressor pump body assembly, and is used to deliver refrigerant gas to the rotary compressor pump body assembly;

[0018] The housing encloses the motor and the rotor compressor pump assembly.

[0019] Optionally, the rotary compressor pump body assembly comprises at least two units.

[0020] The rotor compressor pump body assembly is distributed along the axial direction of the motor output shaft.

[0021] In a third aspect of the invention, embodiments of the invention disclose a rotary compressor as described above.

[0022] The embodiments of the present invention have the following advantages:

[0023] In this embodiment of the invention, a cylinder has an arc-shaped inner wall with multiple grooves along its circumference; a roller with an arc-shaped outer wall is disposed inside the cylinder, and its outer wall is in contact with the inner wall of the cylinder; a slider is located between the roller and the cylinder, and its head surface is arc-shaped, abutting against the roller. The slider and the roller are used to divide the cylinder into at least two chambers; the arc shapes of the head surface of the slider, the inner wall of the cylinder, and the outer wall of the roller are mutually matched. By setting the cylinder inner wall cross section, the roller outer wall cross section, and the vane head surface to match the arc shape, and setting grooves on the inner wall surface of the cylinder, during the pump assembly startup process, the oil in the groove promotes the formation of the wedge effect. Combined with the mechanical properties of the arc-shaped surface, it changes the instantaneous change trend of the oil film bearing capacity, reduces frictional heat generation and vibration between the contact surfaces, and at the same time, with the working chamber volume unchanged, the arc-shaped surface increases the surface area, resulting in an increased contact area between the refrigerant drawn into the cylinder and the cylinder, improving the cylinder's heat dissipation efficiency, reducing the thermal deformation of the pump assembly, and reducing the wear and noise generated by the pump assembly. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure exploded view of a rotor compressor pump body assembly embodiment of the present application;

[0025] Figure 2 is a structure schematic view of a rotor compressor pump body assembly embodiment of the present application;

[0026] Figure 3 is a structure schematic view of a cylinder of a rotor compressor pump body assembly embodiment of the present application;

[0027] Figure 4 is a cross-sectional view of a cylinder of a rotor compressor pump body assembly embodiment of the present application;

[0028] Figure 5 is a roller force schematic view of a rotor compressor pump body assembly embodiment of the present application;

[0029] Figure 6 is a structure schematic view of a vane of a rotor compressor pump body assembly embodiment of the present application;

[0030] Figure 7 is a structure schematic view of a single groove of a rotor compressor pump body assembly embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS:

[0032] 100-cylinder, 200-roller, 300-vane, 310-head face, 400-groove, 410-sub-groove. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0034] Referring to Figure 1 , a structure exploded view of a rotor compressor pump body assembly embodiment of the present application is shown, which can specifically include the following components:

[0035] A cylinder 100, the inner wall surface is a circular arc, a plurality of grooves 400 are arranged on the inner wall surface of the cylinder 100 in the circumferential direction;

[0036] A roller 200, the outer wall surface is a circular arc, arranged inside the cylinder 100, the outer wall surface of the roller 200 is in contact with the inner wall surface of the cylinder 100;

[0037] The slide 300 is located between the roller 200 and the cylinder 100, the head surface 310 of the slide 300 is in the form of a circular arc, the head surface 310 of the slide 300 abuts against the roller 200, and the slide 300 and the roller 200 are used to divide the cylinder 100 into at least two chambers; the circular arc of the head surface 310 of the slide 300, the inner wall surface of the cylinder 100 and the outer wall surface of the roller 200 are matched with each other.

[0038] In the embodiment of the application, the rotor compressor pump body assembly can include a cylinder 100, a roller 200 and a slide 300. The inner wall surface of the cylinder 100 is in the form of a circular arc, the outer wall surface of the roller 200 is in the form of a circular arc, and the head surface 310 of the slide 300 is in the form of a circular arc. The circular arc of the inner wall surface of the cylinder 100, the circular arc of the outer wall surface of the roller 200 and the circular arc of the head surface 310 of the slide 300 are matched with each other. The roller 200 is arranged inside the cylinder 100 and can rotate in the cylinder 100. The outer wall surface of the roller 200 abuts against the inner wall surface of the cylinder 100, and the roller 200 realizes compression of refrigerant gas through rotary motion. The roller 200 can be in the form of a single rotor, directly driven by a driving rotor, and driven by a passive rotor through oil film formed by oil injection (or driven by a synchronous gear); or the roller 200 can be in the form of a double rotor, driven by two symmetrically arranged rotors through a synchronous gear or oil film pressure. The embodiment of the application does not make specific limitation on this.

[0039] The inner wall surface of the cylinder 100 is provided with a plurality of grooves 400 in the circumferential direction, and the grooves 400 can store oil such as lubricating oil. When the roller 200 rotates in the cylinder 100, especially during the starting process, the oil film formed on the inner wall surface of the cylinder 100 and the outer wall surface of the roller 200 can promote the oil film wedge effect, increase the oil film carrying capacity, and reduce the frictional heat and rubbing vibration between the inner wall surface of the cylinder 100 and the outer wall surface of the roller 200.

[0040] The slide 300 is fixedly connected with the roller 200. The slide 300 is a long strip-shaped sheet, the head surface 310 of the slide 300 is in contact with the inner wall surface of the cylinder 100, and the tail surface of the slide 300 is connected with the roller 200. The material of the slide 300 can be high-wear-resistant alloy steel or ceramic composite material, and the surface is specially treated (such as hard chromium plating or diamond-like coating) to reduce the friction coefficient. The back of the slide 300 is provided with a spring or utilizes back pressure (such as high-pressure gas pressure) to make the head surface 310 of the slide 300 always tightly press against the outer surface of the roller 200, so as to form a dynamic seal. When the roller 200 rotates, the slide 300 divides the crescent-shaped space between the cylinder 100 and the roller 200 into a suction chamber and a compression chamber. The suction chamber inhales low-pressure refrigerant gas through the suction hole of the cylinder 100, and the compression chamber discharges high-pressure gas through the exhaust valve. The slide 300 can rotate with the roller 200 to reciprocate in the radial groove of the cylinder 100, the head thereof keeps linear contact with the outer surface of the rotor, a dynamic sealing line is formed, and gas leakage is prevented. An oil film is formed on the contact surface between the slide 300 and the inner wall surface of the cylinder 100 and the roller 200, which not only reduces friction and wear, but also enhances the sealing effect. The slide 300 can adopt a double-layer slide 300 design (the two slides 300 are in contact with the inner wall of the cylinder 100 at the ends), two sealing lines can be formed, lubricating oil is injected in the middle to form an oil seal, and the leakage loss is greatly reduced; or a single-layer slide 300 design can be adopted, so that the structure is more simple and compact.

[0041] The embodiment of the present application is characterized in that the inner wall surface of the cylinder 100 is arc-shaped, a plurality of grooves 400 are arranged on the inner wall surface of the cylinder 100 in the circumferential direction, the outer wall surface of the roller 200 is arc-shaped, the roller 200 is arranged in the cylinder 100, the outer wall surface of the roller 200 is in contact with the inner wall surface of the cylinder 100, the head surface 310 of the slide 300 is arc-shaped, the head surface 310 of the slide 300 is in contact with the roller 200, the slide 300 and the roller 200 are used for dividing the cylinder 100 into at least two chambers, and the arc-shaped head surface 310 of the slide 300, the inner wall surface of the cylinder 100 and the outer wall surface of the roller 200 are matched with each other. By matching the cross section of the inner wall surface of the cylinder 100, the outer wall surface of the roller 200 and the head surface 310 of the slide 300 with each other in the form of arc, and arranging the grooves 400 on the inner wall surface of the cylinder 100, the oil in the grooves 400 promotes the formation of the wedge effect during the start of the pump body, the mechanical properties of the arc-shaped surface are matched, the instantaneous change trend of the oil film bearing force is changed, the friction heat and vibration between the contact surfaces are reduced, and the contact area between the refrigerant in the cylinder 100 and the cylinder 100 is increased due to the increase of the surface area of the arc-shaped surface under the condition that the volume of the working chamber is unchanged, the heat dissipation efficiency of the cylinder 100 is improved, the thermal deformation of the pump body assembly is reduced, and the wear and noise of the pump body assembly are reduced.

[0042] Referring to Figure 2 , a structural schematic diagram of an embodiment of a rotor compressor pump body assembly is shown, which can specifically include the following components:

[0043] A cylinder 100, the inner wall surface is arc-shaped, a plurality of grooves 400 are arranged on the inner wall surface of the cylinder 100 in the circumferential direction; the grooves 400 are uniformly distributed along the circumferential direction of the inner wall surface of the cylinder 100;

[0044] A roller 200, the outer wall surface is arc-shaped, arranged inside the cylinder 100, the outer wall surface of the roller 200 is in contact with the inner wall surface of the cylinder 100;

[0045] A sliding vane 300, located between the roller 200 and the cylinder 100, the head surface 310 of the sliding vane 300 is arc-shaped, the head surface 310 of the sliding vane 300 is in contact with the roller 200, the sliding vane 300 and the roller 200 are used to divide the cylinder 100 into at least two chambers; the arc-shaped surfaces of the head surface 310 of the sliding vane 300, the inner wall surface of the cylinder 100 and the outer wall surface of the roller 200 match each other.

[0046] In the embodiment of the application, the rotor compressor pump body assembly can include a cylinder 100, a roller 200 and a sliding vane 300. The inner wall surface of the cylinder 100 is arc-shaped, the outer wall surface of the roller 200 is arc-shaped, and the head surface 310 of the sliding vane 300 is arc-shaped. And the arc-shaped surfaces of the inner wall surface of the cylinder 100, the outer wall surface of the roller 200 and the head surface 310 of the sliding vane 300 match each other. Please refer to Figure 3 and Figure 4 A plurality of grooves 400 are arranged on the inner wall surface of the cylinder 100 in the circumferential direction, and the grooves 400 are uniformly distributed along the circumferential direction of the inner wall surface of the cylinder 100. When the roller 200 rotates in the cylinder 100, an oil film can be uniformly formed, so that the roller 200 can rotate under the protection of the oil film when rotating in the cylinder 100, avoiding wear of the cylinder 100 and the roller 200. Based on the friction reduction of lubricating oil, dry friction and noise caused by deformation can be avoided, and the noise of operation is reduced.

[0047] The outer wall surface of the roller 200 is in contact with the inner wall surface of the cylinder 100, the outer wall surface of the roller 200 is in contact with the arc-shaped inner wall surface of the cylinder 100, and the roller 200 rotates based on the arc-shaped surface, so that the surface area of the working chamber is increased under the condition that the volume is unchanged, the contact area between the refrigerant sucked into the cylinder 100 and the working chamber is increased under the condition that the volume of the sucked refrigerant is unchanged, the heat dissipation area of the pump body assembly during heat dissipation is increased, and the heat dissipation efficiency of the pump body assembly is improved, thereby reducing the thermal deformation of the pump body assembly. The stress conditions of the roller 200 and the cylinder 100 can be referred to Figure 5 During the operation of the compressor, when the roller 200 in the pump body assembly is not in contact with the upper cylinder 100, the gas force on the outer wall of the upper cylinder 100 can be simplified as gas forces Fg1 and Fg2 perpendicular to the outer wall of the roller 200 and having the same size. The gas force Fg1 is decomposed into Fy1 in the axial direction and Fx1 in the radial direction, and the gas force Fg2 is decomposed into Fy2 in the axial direction and Fx2 in the radial direction. Fy1 and Fy2 are opposite in direction and have the same size, and can cancel each other out. Therefore, the gas force on the roller 200 is only the radial forces Fx1 and Fx2, and Fx1 and Fx2 have the same size and are smaller than Fg. Therefore, the radial force on the roller 200 is smaller than that of a conventional roller 200, and the radial force transmitted to the crankshaft by the roller 200 is also smaller, thereby reducing the stress deformation of the crankshaft. When the roller 200 in the pump body assembly is in contact with the upper cylinder 100, the arc-shaped surface improves the friction heat generation, but the micro contact characteristics are also changed accordingly, and the friction force increases. The outer wall surface of the roller 200 is in contact with the force Fn and the oil film force Fp. Under the action of the resultant force, the increase of Fp leads to the decrease of Fn, thereby reducing the tangential friction force. On the one hand, the lubrication characteristics during the starting process are improved, and on the other hand, the negative effects of the increase of the friction force caused by the arc surface are improved. The overall implementation reduces the wear of the pump body assembly and the noise generated by friction, improves the reliability of the compressor, the energy efficiency and comfort of the air conditioning system.

[0048] Similarly, the head surface 310 of the sliding vane 300 is also in contact with the roller 200, the outer wall surface of the roller 200 is in contact with the arc-shaped head surface 310 of the sliding vane 300, and the roller 200 rotates based on the arc-shaped surface. Figure 6 The cylinder 100 is divided into at least two chambers by the sliding vane 300 and the roller 200, and the refrigerant gas is compressed and output.

[0049] In an optional embodiment of the present application, the number of grooves 400 is even. The grooves 400 are evenly distributed in pairs on the inner wall surface of the cylinder 100, so that the roller 200 can uniformly form an oil film when rolling on the cylinder 100, thereby reducing vibration and noise during operation. The number of grooves 400 can be four, six, eight, etc. The embodiments of the present application are not limited.

[0050] In an example, the groove 400 is a V-shaped groove.

[0051] Referring to Figure 7 The groove 400 is a V-shaped groove. By using the shape of the V-shaped groove, oil liquid in two directions is accommodated, so that the oil film can be better formed when the roller 200 operates, and the lubrication effect during operation is ensured.

[0052] In an example, the groove 400 is a straight groove. By setting the groove 400 as a straight groove, the continuous flow of oil liquid can be maintained, and the processing is simple and easy to implement.

[0053] In an example, the groove 400 is an inclined groove. By setting the groove 400 as an inclined groove, since the inclined groove has a certain angle with the axial direction, the roller 200 gradually contacts the inclined groove when passing through the inclined groove, the contact area gradually spreads from a point, and the contact area also gradually changes from small to large and then from large to small. This smooth contact process can reduce the generation of noise, thereby reducing the noise during operation.

[0054] Specifically, each of the grooves 400 includes:

[0055] a plurality of sub-grooves 410 which are equally spaced.

[0056] Referring to Figure 7 Each of the grooves 400 can include a plurality of sub-grooves 410 which are equally spaced in the area where the single groove 400 is located, so that more oil liquid can be accommodated, and the oil liquid can be diffused to a greater extent due to the multi-point contact. Even during cold start or high-speed operation, the generation of the oil film can be ensured.

[0057] In an optional embodiment of the present application, the circular arc shape of the outer wall surface of the roller 200 is a single circular arc shape.

[0058] The circular arc shape of the outer wall surface of the roller 200 is a single circular arc shape, that is, the outer wall surface of the roller 200 is a single circular arc shape. By the arc contact, the contact area can be expanded, the surface contact can be formed, and the contact surface load can be reduced. In addition, the contact area is increased, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0059] In an optional embodiment of the present application, the circular arc shape of the outer wall surface of the roller 200 is a wave shape.

[0060] The circular arc shape of the outer wall surface of the roller 200 is a wave shape, that is, a continuous circular arc shape. The contact area is further increased, so that the heat dissipation area is increased and the heat dissipation efficiency is improved. At the same time, the contact surface between the roller 200 and the cylinder 100 can be sealed based on the continuous circular arc shape, so as to prevent the leakage of oil liquid.

[0061] The embodiment of the present application sets the inner wall surface of the cylinder 100, the outer wall surface of the roller 200 and the head surface 310 of the sliding vane 300 as matching circular arc shapes, increases the groove structure of the inner wall surface of the cylinder, promotes the formation of the cross-sectional wedge effect of the contact surface during the starting process, cooperates with the mechanical properties of the circular arc curved surface, changes the instantaneous change trend of the oil film carrying capacity, reduces the micro-convex body contact time, reduces the frictional heat and vibration between the interfaces; increases the surface area under the condition that the volume of the working chamber is unchanged, increases the contact area of the refrigerant inhaled into the cylinder 100 with the cylinder, improves the heat dissipation efficiency of the cylinder 100, and reduces the stress on the crankshaft, reduces the thermal deformation of the pump body assembly and the stress deformation of the crankshaft, reduces the wear and noise of the pump body assembly, improves the reliability of the compressor, the energy efficiency and comfort of the air conditioning system.

[0062] The embodiment of the present application also discloses a rotary compressor, which comprises a motor, a distributor, a shell and a rotary compressor pump body assembly as described above,

[0063] The motor is connected with the rotary compressor pump body assembly and is used for driving the rotary compressor pump body assembly to operate.

[0064] The output end of the distributor is connected with the input end of the rotary compressor pump body assembly and is used for conveying refrigerant gas to the rotary compressor pump body assembly.

[0065] The shell wraps the motor and the rotary compressor pump body assembly.

[0066] In the embodiment of the present application, the rotary compressor can comprise a motor, a distributor, a shell and a rotary compressor pump body assembly, and the rotary compressor pump body assembly is connected with the motor. The motor can comprise a motor rotor and a motor stator. The motor rotor can be installed on the rotary compressor pump body assembly. The motor rotor can be composed of a rotor auxiliary balance block, an oil blocking structure, a rotor core and a rotor main balance block. The motor rotor rotates under the electromagnetic drive of the motor stator, thereby driving the rotary compressor pump body assembly to operate. The output end of the distributor is connected with the input end of the rotary compressor pump body assembly, and the rotary compressor pump body assembly is connected with the input end of the rotary compressor pump body assembly. The distributor is connected with the input end of the rotary compressor pump body assembly and is used for conveying refrigerant gas to the rotary compressor pump body assembly. The shell wraps the motor and the rotary compressor pump body assembly. When the rotary compressor operates, the distributor is the air inlet channel of the rotary compressor pump body assembly. The refrigerant gas is discharged after being compressed by the rotary compressor pump body assembly. The discharged refrigerant gas flows through the motor rotor, the motor stator and then is discharged from the shell of the compressor, thereby completing the working process of the compressor.

[0067] Further, the rotary compressor pump body assembly is at least two, and the rotary compressor pump body assembly is distributed along the axial direction of the output shaft of the motor.

[0068] By axial distribution of the plurality of rotor compressor pump body assemblies along the motor output shaft, axial forces generated when the rotor compressor pump body assemblies are operating can interact and cancel each other out, thereby reducing the stress on the main shaft of the rotor compressor, reducing wear and deformation of the rotor compressor, and ensuring the reliability and noise of operation.

[0069] The rotor compressor pump body assembly comprises:

[0070] The cylinder has a circular arc-shaped inner wall surface, and a plurality of grooves are arranged on the inner wall surface of the cylinder in the circumferential direction.

[0071] The roller has a circular arc-shaped outer wall surface and is arranged inside the cylinder, and the outer wall surface of the roller is in contact with the inner wall surface of the cylinder.

[0072] The sliding vane is located between the roller and the cylinder, the head surface of the sliding vane is circular arc-shaped, the head surface of the sliding vane is in contact with the roller, and the sliding vane and the roller are used to divide the cylinder into at least two chambers; the circular arc-shaped head surface of the sliding vane, the inner wall surface of the cylinder and the outer wall surface of the roller are matched with each other.

[0073] Optionally, the grooves are uniformly distributed along the circumferential direction of the inner wall surface of the cylinder.

[0074] Optionally, the grooves are V-shaped grooves, straight grooves or inclined grooves.

[0075] Optionally, each groove comprises:

[0076] A plurality of sub-grooves with the same shape are distributed at equal intervals.

[0077] Optionally, the number of grooves is even.

[0078] Optionally, the circular arc-shaped outer wall surface of the roller is single circular arc-shaped.

[0079] Optionally, the circular arc-shaped outer wall surface of the roller is wave-shaped.

[0080] The embodiment of the present application is characterized in that the inner wall surface of the cylinder is arc-shaped, and a plurality of grooves are arranged on the inner wall surface of the cylinder in the circumferential direction; the outer wall surface of the roller is arc-shaped, and the roller is arranged in the cylinder, and the outer wall surface of the roller is in contact with the inner wall surface of the cylinder; the sliding sheet is located between the roller and the cylinder, the head surface of the sliding sheet is arc-shaped, the head surface of the sliding sheet is in contact with the roller, and the sliding sheet and the roller are used to divide the cylinder into at least two chambers; and the arc-shaped surfaces of the head surface of the sliding sheet, the inner wall surface of the cylinder and the outer wall surface of the roller are matched with each other. By matching the cross section of the inner wall of the cylinder, the outer wall of the roller and the head surface of the sliding sheet with arc-shaped surfaces, the inner wall surface of the cylinder is provided with grooves, and in the starting process of the pump body, the formation of the wedge effect is promoted based on the oil in the grooves, the mechanical properties of the arc-shaped surface are matched, the instantaneous change trend of the oil film bearing force is changed, the frictional heat generation and vibration between the contact surfaces are reduced, and at the same time, the contact area between the refrigerant sucked into the cylinder and the cylinder is increased due to the increased surface area of the arc-shaped surface under the condition that the volume of the working chamber is unchanged, the heat dissipation efficiency of the cylinder is improved, the thermal deformation of the pump body assembly is reduced, and the wear and noise of the pump body assembly are reduced.

[0081] The embodiment of the present application also discloses an air conditioning equipment, which comprises the rotor compressor.

[0082] Through the rotating movement of the eccentric rotor in the cylinder in the rotor compressor pump body assembly, a dynamic compression chamber is formed, and three core processes of suction, compression and exhaust are completed: in the suction stage, when the rotor compressor pump body assembly rotates to the suction port, low-pressure refrigerant gas is filled into the crescent-shaped compression chamber; in the compression stage, the rotor continues to rotate, the compression chamber volume gradually decreases, and the gas pressure and temperature are synchronously increased; in the exhaust stage, when the compression chamber is communicated with the exhaust port, high-pressure gas is exhausted, and a complete working cycle is completed.

[0083] Through driving by the rotor compressor, lightweight and miniaturization can be realized, the number of parts is reduced by 40% compared with a piston compressor, the volume is reduced by 50% and the weight is reduced by 30% under the same refrigerating capacity, and the rotor compressor is particularly suitable for the design of a household air conditioner indoor unit with limited space. Moreover, the rotor compressor is designed without a suction valve sheet, and the valve sheet vibration noise is eliminated, and the operating noise is lower than 45 decibels; the double-rotor model offsets the inertial force through symmetrical layout, and the vibration amplitude is reduced by 60%, and is suitable for a bedroom air conditioner with high silence requirement. The clearance volume is small (only 3%-5% of the cylinder volume), and the gas delivery coefficient reaches 0.92-0.95; after the popularization of frequency conversion technology, the APF (annual energy consumption efficiency) value breaks through 6.0, and the energy saving is 30% compared with a fixed-frequency model.

[0084] The rotor compressor pump body assembly of the rotor compressor comprises:

[0085] The inner wall surface of the cylinder is circular arc-shaped, and a plurality of grooves are arranged on the inner wall surface of the cylinder along the circumferential direction.

[0086] The outer wall surface of the roller is circular arc-shaped and is arranged in the cylinder, and the outer wall surface of the roller is in contact with the inner wall surface of the cylinder.

[0087] The head surface of the sliding sheet is circular arc-shaped, the head surface of the sliding sheet is in contact with the roller, and the sliding sheet and the roller are used to divide the cylinder into at least two chambers.

[0088] Optionally, the grooves are uniformly distributed along the circumferential direction of the inner wall surface of the cylinder.

[0089] Optionally, the grooves are V-shaped grooves or straight grooves or inclined grooves.

[0090] Optionally, each groove comprises:

[0091] A plurality of sub-grooves with the same shape are distributed at equal intervals.

[0092] Optionally, the number of grooves is even.

[0093] Optionally, the circular arc shape of the outer wall surface of the roller is a single circular arc shape.

[0094] Optionally, the circular arc shape of the outer wall surface of the roller is a wave shape.

[0095] The embodiment of the present application discloses a cylinder with a circular arc-shaped inner wall surface, a plurality of grooves arranged on the inner wall surface of the cylinder along the circumferential direction, a roller with a circular arc-shaped outer wall surface arranged in the cylinder, the outer wall surface of the roller in contact with the inner wall surface of the cylinder, a sliding sheet between the roller and the cylinder, the head surface of the sliding sheet being circular arc-shaped, the head surface of the sliding sheet in contact with the roller, the sliding sheet and the roller used to divide the cylinder into at least two chambers, and the circular arc shapes of the head surface of the sliding sheet, the inner wall surface of the cylinder and the outer wall surface of the roller matched with each other. By matching the cross section of the cylinder, the outer wall section of the roller and the head surface of the sliding sheet with circular arc shapes, arranging grooves on the inner wall surface of the cylinder, promoting the formation of a wedge effect based on the oil in the grooves during the start-up of the pump body, changing the instantaneous change trend of the oil film bearing force based on the mechanical properties of the arc-shaped surface, reducing the frictional heat and vibration between the contact surfaces, and increasing the contact area of the refrigerant in the cylinder with the cylinder due to the increased surface area of the circular arc-shaped surface under the condition that the volume of the working chamber is unchanged, the heat dissipation efficiency of the cylinder is improved, the thermal deformation of the pump body assembly is reduced, and the wear and noise of the pump body assembly are reduced.

[0096] It should be noted that, for the above-mentioned embodiments, for the purpose of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the embodiments of the present application are not limited by the order of the described actions, because according to the embodiments of the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present application.

[0097] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0098] The terms "first", "second", and the like are used only for descriptive purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number or order of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited. In addition, the terms "include", "contain" and "have" and any variations thereof are intended to cover non-exclusive inclusion. As used in the present application, the term "and / or" includes any and all combinations of one or more of the associated listed items, and the phrase "at least one of A and B" means only A, only B, or both A and B. It should be understood that in the specification, the orientations or positional relationships or dimensions indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "height", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships or dimensions shown in the drawings, and these terms are used only for convenience of description, and do not indicate or suggest that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0099] Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0100] Finally, it is to be understood that the phraseology or terminology such as "first" and "second" etc. used herein is merely intended to differentiate one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an indefinite article "a" does not exclude the existence, of additional identical elements in the process, method, article, or apparatus comprising the element.

[0101] The above detailed description of the rotor compressor pump body assembly, the rotor compressor and the air conditioning equipment provided by the present application has been made, the principle and implementation mode of the present application are described by applying specific examples in the present application, the above embodiment description is only used for helping to understand the method and core idea of the present application; meanwhile, for the general technical personnel in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the present application.

Claims

1. A rotor compressor pump body assembly characterized by, The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly.

2. The rotor compressor pump body assembly of claim 1, wherein, The application relates to a rotary compressor pump body assembly.

3. The rotor compressor pump body assembly of any of claims 1-2, wherein, The application relates to a rotary compressor pump body assembly.

4. The rotor compressor pump body assembly of claim 3, wherein, The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly.

5. The rotor compressor pump body assembly of claim 3, wherein, The application relates to a rotary compressor pump body assembly.

6. The rotor compressor pump body assembly of claim 1, wherein, The application relates to a rotary compressor pump body assembly.

7. The rotor compressor pump body assembly of claim 6, wherein, The application relates to a rotary compressor pump body assembly.

8. A rotary compressor characterized by comprising: The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly.

9. The rotary compressor of claim 8, wherein The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly.

10. An air conditioning apparatus characterized by comprising: The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. The application relates to a rotary compressor pump body assembly. 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